https://wiki.ubc.ca/api.php?action=feedcontributions&user=Lulu&feedformat=atomUBC Wiki - User contributions [en]2024-03-28T18:22:35ZUser contributionsMediaWiki 1.39.6https://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606954Course:VANT151/2020/Team5/Team5Main2020-07-13T18:05:54Z<p>Lulu: /* Sub-teams: */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. Designing a clean and simple user interface.<br />
<br />
2. Showing a reasonable drying time.<br />
<br />
3. Offering intuitive feadback for users.<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
#The maximum numbers of buttons are 10.<br />
===The Design===<br />
====Hardware Layout====<br />
[[File:Chart_team5.jpg|thumb|Program Flow Chart]]<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
[[File:Drum(team5).jpg|thumb|<br />
The size of the drum is 0.92L.<br />
]]<br />
<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
[[File:Turbine Vant 151.jpg|thumb|280x280px|<br />
The scale drawing of the centrifugal turbine. <br />
]]<br />
<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
[[File:Lint filter(team5).jpg|thumb|<br />
The scale drawing of the lint filter (45 mm x 40 mm).<br />
]]<br />
<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
==== Video 1: Rotating Drum ====<br />
{{YouTube|id=F0i7wPdkfnU|width=400|height=300}}<br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
The project of designing an energy recovery clothes dryer requires specific structure with special features. The requirements for this project have been studied before starting the process of designing. Some of requirements were extracted from the need statement provided by the project advisor and others were necessary to functionate the project. In this part, the requirements for the structure of the clothes dryer are explained including functions, objectives and constraints.<br />
<br />
==== Objectives ====<br />
Some features were considered as optional as the design does not have to have them. One of those features is the wheels to make the dryer portable. The wheels might be really helpful for the user but designing them and connecting them to the structure of the dryer has some difficulties, so the team considered them an objective.<br />
<br />
==== Constraints ====<br />
The structure of the clothes design has to follow some constraints regarding size, material, and wanted features. For the size, the clothes dryer has to be in the scope of 250x250 cm2. Those dimensions were determined by the whole team so there will be enough space for every unit. More information about the material can be found in the Units sub-team section. For the features, a tray table is necessary for the clothes dryer as it makes using the dryer easier.<br />
<br />
=== The Design ===<br />
<br />
==== Door ====<br />
The design of the door for the clothes dryer machine has to contain some apparatus to keep clothes inside the machine while its functioning. These apparatus are; components of the latch, the cylindrical object on the inner surface of the door. Moreover, apart from these, opening way of the door is also affected the design of the door as much as the designs of the apparatuses. For the first apparatus, the latch is an object which keeps the door tightly closed. For this project latch was designed in two components which are the hook of the latch and the place where that hook is attached. For the hook, it is shaped like the letter "v" but wider, and that hook is attached to another object which is shaped like a cylinder but in the middle of the object, a big hole was opened to place the hook.<br />
<br />
The purpose of the cylindrical object is to keep the clothes inside the machine by closing every opening on the door. In other words, it prevents the clothes from coming out by closing the gaps, just like stopper. This object is designed in a cylindrical shape due to the shape of the drum and an angle was given to the cylinder to be attached even more.<br />
<br />
Finally, the opening direction of the door is designed to be opened to the right side of the machine because it would be for the door to keep opened until the user puts their clothes. Moreover, if the door was designed to be opened upwards, there was a possibility of breaking the hinges due to the wight of the door<br />
<br />
==== Control Panel ====<br />
A control panel is a special board which helps to user to use a machine more freely, quickly and comfortably by placing an extra space for user-interface components. For this project, designing a EneREC clothes dryer machine, twelve buttons, a LCD screen and two LED lights were given to control the clothes dryer machine. After having discussions, it was decided to have a suitable panel for the given components. For the design of the panel, there were two possible designs for the panel in the first stages of the design process but, then one of the designs were chosen to be the final design for being the better design among the other. In the following paragraphs further information will be given about the chosen and the alternative design.<br />
<br />
The alternative design was not chosen due to these reasons which listed below:<br />
# Being not handy<br />
# The location of the panel<br />
# Shape of the panel<br />
Firstly, the first design, the alternative, was not handy for the user to control the machine because the alternative panel was not thick enough to be noticed by the user. In other words, the panel was not as practical as the chosen design. Secondly, the location of the panel (front part of the clothes dryer) would have made harder to use the user-interface components like buttons and LCD screen, if the panel was not relocated to the back of the clothes dryer. Finally, the shape of the panel was so simple and was not handy for the user. As it mentioned in the first reason of not being picked for the final design, thickness of the panel was 10 millimetres which was very thin for the sizes of the machine.<br />
<br />
The final design was chosen due to these reasons:<br />
# Shape of the newer panel<br />
# Being more user friendly<br />
# The location<br />
The first reason for choosing this design was the shape of the newer design because, the newer design makes easier to see and use the user-interface components by making an angle between the top surface machine's panel with the bottom surface of the panel. Second reason was for being more user friendly by giving more space for the buttons and LCD screen. In other words, the distance between the components extended to use it easily. This reason is also related to the third reason which is the location of the panel. In this final design, the panel is located on the far side of the clothes dryer and with that more empty space was provided on the front side of the clothes dryer to place objects such as, wet clothes, a tray to collect the clothes after finishing drying or even phone and wallet.<br />
<br />
==== Water Collection Tray ====<br />
The purpose of the water collection tray is to collect water that flows out from machines like refrigerator, laundry machines and clothes dryers. In this EneREC clothes dryer machine, water collection tray is used to collect the water coming out from the pipes and cables which are connected to the drum. For this reason, water collection tray was designed to put under the cables and to do that there were two possible designs in beginning.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Kayra & Waleed<br />
|Day 1, 11:15 am - 1:15 pm<br />
|-<br />
|Xuanzhe & Xintao<br />
|Day 1, 1:15 pm - 3:15 pm<br />
|-<br />
|Xinqiao & Victor<br />
|Day 1, 3:15 pm - 5:15 pm<br />
|-<br />
|George & Victor<br />
|Day 1, 5:15 pm - 6:15 pm<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 1, 6:15 pm - 7:45 pm<br />
|-<br />
|Xuanzhe & George<br />
|Day 2, 8 am - 10 am<br />
|-<br />
|Xinqiao & Xintao<br />
|Day 2, 10 am - 12 am<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 2, 12 pm - 13:15 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/collab/ui/session/join/4f344f8c24284bcda3cf2eed400a4abc Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
I'm Xinqiao (Xinq), a member of the mechanical sub-team. I contributed to the discussion regarding drum size, the design process for the drive system, and the lint filter. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|[[File:Kayrateam5.jpg|thumb|270x270px|<br />
Kayra Oztoprak<br />
]]Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am a student from UBC. As a member of the structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri[[File:Waleed_team5.jpg|thumb|Waleed Ai-Shukri]]Structural Group Member<br />
<br />
My name is Waleed Ai-Shukri. and I am a student from UBC. As a member of the structural sub-team, my job is to make the door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=File:Waleed_team5.jpg&diff=606953File:Waleed team5.jpg2020-07-13T18:05:20Z<p>Lulu: User created page with UploadWizard</p>
<hr />
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{{Information<br />
|description={{en|1=group photo}}<br />
|date=2020-07-13 11:02:28<br />
|source={{own}}<br />
|author=[[User:Lulu|Lulu]]<br />
|permission=<br />
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{{self|cc-by-sa-4.0}}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606951Course:VANT151/2020/Team5/Team5Main2020-07-13T17:57:57Z<p>Lulu: /* Structural Design */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. Designing a clean and simple user interface.<br />
<br />
2. Showing a reasonable drying time.<br />
<br />
3. Offering intuitive feadback for users.<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
#The maximum numbers of buttons are 10.<br />
===The Design===<br />
====Hardware Layout====<br />
[[File:Chart_team5.jpg|thumb|Program Flow Chart]]<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
[[File:Drum(team5).jpg|thumb|<br />
The size of the drum is 0.92L.<br />
]]<br />
<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
[[File:Turbine Vant 151.jpg|thumb|280x280px|<br />
The scale drawing of the centrifugal turbine. <br />
]]<br />
<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
[[File:Lint filter(team5).jpg|thumb|<br />
The scale drawing of the lint filter (45 mm x 40 mm).<br />
]]<br />
<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
==== Video 1: Rotating Drum ====<br />
{{YouTube|id=F0i7wPdkfnU|width=400|height=300}}<br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
The project of designing an energy recovery clothes dryer requires specific structure with special features. The requirements for this project have been studied before starting the process of designing. Some of requirements were extracted from the need statement provided by the project advisor and others were necessary to functionate the project. In this part, the requirements for the structure of the clothes dryer are explained including functions, objectives and constraints.<br />
<br />
==== Objectives ====<br />
Some features were considered as optional as the design does not have to have them. One of those features is the wheels to make the dryer portable. The wheels might be really helpful for the user but designing them and connecting them to the structure of the dryer has some difficulties, so the team considered them an objective.<br />
<br />
==== Constraints ====<br />
The structure of the clothes design has to follow some constraints regarding size, material, and wanted features. For the size, the clothes dryer has to be in the scope of 250x250 cm2. Those dimensions were determined by the whole team so there will be enough space for every unit. More information about the material can be found in the Units sub-team section. For the features, a tray table is necessary for the clothes dryer as it makes using the dryer easier.<br />
<br />
=== The Design ===<br />
<br />
==== Door ====<br />
The design of the door for the clothes dryer machine has to contain some apparatus to keep clothes inside the machine while its functioning. These apparatus are; components of the latch, the cylindrical object on the inner surface of the door. Moreover, apart from these, opening way of the door is also affected the design of the door as much as the designs of the apparatuses. For the first apparatus, the latch is an object which keeps the door tightly closed. For this project latch was designed in two components which are the hook of the latch and the place where that hook is attached. For the hook, it is shaped like the letter "v" but wider, and that hook is attached to another object which is shaped like a cylinder but in the middle of the object, a big hole was opened to place the hook.<br />
<br />
The purpose of the cylindrical object is to keep the clothes inside the machine by closing every opening on the door. In other words, it prevents the clothes from coming out by closing the gaps, just like stopper. This object is designed in a cylindrical shape due to the shape of the drum and an angle was given to the cylinder to be attached even more.<br />
<br />
Finally, the opening direction of the door is designed to be opened to the right side of the machine because it would be for the door to keep opened until the user puts their clothes. Moreover, if the door was designed to be opened upwards, there was a possibility of breaking the hinges due to the wight of the door<br />
<br />
==== Control Panel ====<br />
A control panel is a special board which helps to user to use a machine more freely, quickly and comfortably by placing an extra space for user-interface components. For this project, designing a EneREC clothes dryer machine, twelve buttons, a LCD screen and two LED lights were given to control the clothes dryer machine. After having discussions, it was decided to have a suitable panel for the given components. For the design of the panel, there were two possible designs for the panel in the first stages of the design process but, then one of the designs were chosen to be the final design for being the better design among the other. In the following paragraphs further information will be given about the chosen and the alternative design.<br />
<br />
The alternative design was not chosen due to these reasons which listed below:<br />
# Being not handy<br />
# The location of the panel<br />
# Shape of the panel<br />
Firstly, the first design, the alternative, was not handy for the user to control the machine because the alternative panel was not thick enough to be noticed by the user. In other words, the panel was not as practical as the chosen design. Secondly, the location of the panel (front part of the clothes dryer) would have made harder to use the user-interface components like buttons and LCD screen, if the panel was not relocated to the back of the clothes dryer. Finally, the shape of the panel was so simple and was not handy for the user. As it mentioned in the first reason of not being picked for the final design, thickness of the panel was 10 millimetres which was very thin for the sizes of the machine.<br />
<br />
The final design was chosen due to these reasons:<br />
# Shape of the newer panel<br />
# Being more user friendly<br />
# The location<br />
The first reason for choosing this design was the shape of the newer design because, the newer design makes easier to see and use the user-interface components by making an angle between the top surface machine's panel with the bottom surface of the panel. Second reason was for being more user friendly by giving more space for the buttons and LCD screen. In other words, the distance between the components extended to use it easily. This reason is also related to the third reason which is the location of the panel. In this final design, the panel is located on the far side of the clothes dryer and with that more empty space was provided on the front side of the clothes dryer to place objects such as, wet clothes, a tray to collect the clothes after finishing drying or even phone and wallet.<br />
<br />
==== Water Collection Tray ====<br />
The purpose of the water collection tray is to collect water that flows out from machines like refrigerator, laundry machines and clothes dryers. In this EneREC clothes dryer machine, water collection tray is used to collect the water coming out from the pipes and cables which are connected to the drum. For this reason, water collection tray was designed to put under the cables and to do that there were two possible designs in beginning.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Kayra & Waleed<br />
|Day 1, 11:15 am - 1:15 pm<br />
|-<br />
|Xuanzhe & Xintao<br />
|Day 1, 1:15 pm - 3:15 pm<br />
|-<br />
|Xinqiao & Victor<br />
|Day 1, 3:15 pm - 5:15 pm<br />
|-<br />
|George & Victor<br />
|Day 1, 5:15 pm - 6:15 pm<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 1, 6:15 pm - 7:45 pm<br />
|-<br />
|Xuanzhe & George<br />
|Day 2, 8 am - 10 am<br />
|-<br />
|Xinqiao & Xintao<br />
|Day 2, 10 am - 12 am<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 2, 12 pm - 13:15 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/collab/ui/session/join/4f344f8c24284bcda3cf2eed400a4abc Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
I'm Xinqiao (Xinq), a member of the mechanical sub-team. I contributed to the discussion regarding drum size, the design process for the drive system, and the lint filter. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|[[File:Kayrateam5.jpg|thumb|270x270px|<br />
Kayra Oztoprak<br />
]]Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am a student from UBC. As a member of the structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
My name is Waleed Ai-Shukri. and I am a student from UBC. As a member of the structural sub-team, my job is to make the door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606948Course:VANT151/2020/Team5/Team5Main2020-07-13T17:48:44Z<p>Lulu: /* Sub-teams: */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. Designing a clean and simple user interface.<br />
<br />
2. Showing a reasonable drying time.<br />
<br />
3. Offering intuitive feadback for users.<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
#The maximum numbers of buttons are 10.<br />
===The Design===<br />
====Hardware Layout====<br />
[[File:Chart_team5.jpg|thumb|Program Flow Chart]]<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
[[File:Drum(team5).jpg|thumb|<br />
The size of the drum is 0.92L.<br />
]]<br />
<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
[[File:Turbine Vant 151.jpg|thumb|280x280px|<br />
The scale drawing of the centrifugal turbine. <br />
]]<br />
<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
[[File:Lint filter(team5).jpg|thumb|<br />
The scale drawing of the lint filter (45 mm x 40 mm).<br />
]]<br />
<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
==== Video 1: Rotating Drum ====<br />
{{YouTube|id=F0i7wPdkfnU|width=400|height=300}}<br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Kayra & Waleed<br />
|Day 1, 11:15 am - 1:15 pm<br />
|-<br />
|Xuanzhe & Xintao<br />
|Day 1, 1:15 pm - 3:15 pm<br />
|-<br />
|Xinqiao & Victor<br />
|Day 1, 3:15 pm - 5:15 pm<br />
|-<br />
|George & Victor<br />
|Day 1, 5:15 pm - 6:15 pm<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 1, 6:15 pm - 7:45 pm<br />
|-<br />
|Xuanzhe & George<br />
|Day 2, 8 am - 10 am<br />
|-<br />
|Xinqiao & Xintao<br />
|Day 2, 10 am - 12 am<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 2, 12 pm - 13:15 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/collab/ui/session/join/4f344f8c24284bcda3cf2eed400a4abc Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
I'm Xinqiao (Xinq), a member of the mechanical sub-team. I contributed to the discussion regarding drum size, the design process for the drive system, and the lint filter. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|[[File:Kayrateam5.jpg|thumb|270x270px|<br />
Kayra Oztoprak<br />
]]Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am a student from UBC. As a member of the structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
My name is Waleed Ai-Shukri. and I am a student from UBC. As a member of the structural sub-team, my job is to make the door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606947Course:VANT151/2020/Team5/Team5Main2020-07-13T17:47:36Z<p>Lulu: /* Sub-teams: */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. Designing a clean and simple user interface.<br />
<br />
2. Showing a reasonable drying time.<br />
<br />
3. Offering intuitive feadback for users.<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
#The maximum numbers of buttons are 10.<br />
===The Design===<br />
====Hardware Layout====<br />
[[File:Chart_team5.jpg|thumb|Program Flow Chart]]<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
[[File:Drum(team5).jpg|thumb|<br />
The size of the drum is 0.92L.<br />
]]<br />
<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
[[File:Turbine Vant 151.jpg|thumb|280x280px|<br />
The scale drawing of the centrifugal turbine. <br />
]]<br />
<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
[[File:Lint filter(team5).jpg|thumb|<br />
The scale drawing of the lint filter (45 mm x 40 mm).<br />
]]<br />
<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
==== Video 1: Rotating Drum ====<br />
{{YouTube|id=F0i7wPdkfnU|width=400|height=300}}<br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Kayra & Waleed<br />
|Day 1, 11:15 am - 1:15 pm<br />
|-<br />
|Xuanzhe & Xintao<br />
|Day 1, 1:15 pm - 3:15 pm<br />
|-<br />
|Xinqiao & Victor<br />
|Day 1, 3:15 pm - 5:15 pm<br />
|-<br />
|George & Victor<br />
|Day 1, 5:15 pm - 6:15 pm<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 1, 6:15 pm - 7:45 pm<br />
|-<br />
|Xuanzhe & George<br />
|Day 2, 8 am - 10 am<br />
|-<br />
|Xinqiao & Xintao<br />
|Day 2, 10 am - 12 am<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 2, 12 pm - 13:15 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/collab/ui/session/join/4f344f8c24284bcda3cf2eed400a4abc Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
I'm Xinqiao (Xinq), a member of the mechanical sub-team. I contributed to the discussion regarding drum size, the design process for the drive system, and the lint filter. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|[[File:Kayrateam5.jpg|thumb|270x270px|<br />
Kayra Oztoprak<br />
]]Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am a student from UBC. As a member of the structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=File:Kayrateam5.jpg&diff=606946File:Kayrateam5.jpg2020-07-13T17:43:57Z<p>Lulu: Lulu uploaded a new version of File:Kayrateam5.jpg</p>
<hr />
<div>=={{int:filedesc}}==<br />
{{Information<br />
|description={{en|1=group photo}}<br />
|date=2020-07-13<br />
|source={{own}}<br />
|author=[[User:Lulu|Lulu]]<br />
|permission=<br />
|other versions=<br />
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<br />
=={{int:license-header}}==<br />
{{self|cc-by-sa-4.0}}</div>Luluhttps://wiki.ubc.ca/index.php?title=File:Kayrateam5.jpg&diff=606943File:Kayrateam5.jpg2020-07-13T17:35:56Z<p>Lulu: User created page with UploadWizard</p>
<hr />
<div>=={{int:filedesc}}==<br />
{{Information<br />
|description={{en|1=group photo}}<br />
|date=2020-07-13<br />
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|author=[[User:Lulu|Lulu]]<br />
|permission=<br />
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=={{int:license-header}}==<br />
{{self|cc-by-sa-4.0}}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606940Course:VANT151/2020/Team5/Team5Main2020-07-13T17:22:47Z<p>Lulu: /* Operating Sequence and Program Flow Chart */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. Designing a clean and simple user interface.<br />
<br />
2. Showing a reasonable drying time.<br />
<br />
3. Offering intuitive feadback for users.<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
#The maximum numbers of buttons are 10.<br />
===The Design===<br />
====Hardware Layout====<br />
[[File:Chart_team5.jpg|thumb|Program Flow Chart]]<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
[[File:Drum(team5).jpg|thumb|<br />
The size of the drum is 0.92L.<br />
]]<br />
<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
[[File:Turbine Vant 151.jpg|thumb|280x280px|<br />
The scale drawing of the centrifugal turbine. <br />
]]<br />
<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
[[File:Lint filter(team5).jpg|thumb|<br />
The scale drawing of the lint filter (45 mm x 40 mm).<br />
]]<br />
<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
==== Video 1: Rotating Drum ====<br />
{{YouTube|id=F0i7wPdkfnU|width=400|height=300}}<br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Kayra & Waleed<br />
|Day 1, 11:15 am - 1:15 pm<br />
|-<br />
|Xuanzhe & Xintao<br />
|Day 1, 1:15 pm - 3:15 pm<br />
|-<br />
|Xinqiao & Victor<br />
|Day 1, 3:15 pm - 5:15 pm<br />
|-<br />
|George & Victor<br />
|Day 1, 5:15 pm - 6:15 pm<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 1, 6:15 pm - 7:45 pm<br />
|-<br />
|Xuanzhe & George<br />
|Day 2, 8 am - 10 am<br />
|-<br />
|Xinqiao & Xintao<br />
|Day 2, 10 am - 12 am<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 2, 12 pm - 13:15 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/collab/ui/session/join/4f344f8c24284bcda3cf2eed400a4abc Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
I'm Xinqiao (Xinq), a member of the mechanical sub-team. I contributed to the discussion regarding drum size, the design process for the drive system, and the lint filter. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606938Course:VANT151/2020/Team5/Team5Main2020-07-13T17:22:26Z<p>Lulu: /* Operating Sequence and Program Flow Chart */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
[[File:Chart_team5.jpg|thumb|group photo]]<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
[[File:Drum(team5).jpg|thumb|<br />
The size of the drum is 0.92L.<br />
]]<br />
<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
[[File:Turbine Vant 151.jpg|thumb|280x280px|<br />
The scale drawing of the centrifugal turbine. <br />
]]<br />
<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
[[File:Lint filter(team5).jpg|thumb|<br />
The scale drawing of the lint filter (45 mm x 40 mm).<br />
]]<br />
<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
==== Video 1: Rotating Drum ====<br />
{{YouTube|id=F0i7wPdkfnU|width=400|height=300}}<br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Kayra & Waleed<br />
|Day 1, 11:15 am - 1:15 pm<br />
|-<br />
|Xuanzhe & Xintao<br />
|Day 1, 1:15 pm - 3:15 pm<br />
|-<br />
|Xinqiao & Victor<br />
|Day 1, 3:15 pm - 5:15 pm<br />
|-<br />
|George & Victor<br />
|Day 1, 5:15 pm - 6:15 pm<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 1, 6:15 pm - 7:45 pm<br />
|-<br />
|Xuanzhe & George<br />
|Day 2, 8 am - 10 am<br />
|-<br />
|Xinqiao & Xintao<br />
|Day 2, 10 am - 12 am<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 2, 12 pm - 13:15 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/collab/ui/session/join/4f344f8c24284bcda3cf2eed400a4abc Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
I'm Xinqiao (Xinq), a member of the mechanical sub-team. I contributed to the discussion regarding drum size, the design process for the drive system, and the lint filter. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=File:Chart_team5.jpg&diff=606937File:Chart team5.jpg2020-07-13T17:21:33Z<p>Lulu: User created page with UploadWizard</p>
<hr />
<div>=={{int:filedesc}}==<br />
{{Information<br />
|description={{en|1=group photo}}<br />
|date=2020-07-13<br />
|source={{own}}<br />
|author=[[User:Lulu|Lulu]]<br />
|permission=<br />
|other versions=<br />
}}<br />
<br />
=={{int:license-header}}==<br />
{{self|cc-by-sa-4.0}}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606936Course:VANT151/2020/Team5/Team5Main2020-07-13T17:17:11Z<p>Lulu: /* Video 1: Rotating Drum */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
[[File:Drum(team5).jpg|thumb|<br />
The size of the drum is 0.92L.<br />
]]<br />
<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
[[File:Turbine Vant 151.jpg|thumb|280x280px|<br />
The scale drawing of the centrifugal turbine. <br />
]]<br />
<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
[[File:Lint filter(team5).jpg|thumb|<br />
The scale drawing of the lint filter (45 mm x 40 mm).<br />
]]<br />
<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
==== Video 1: Rotating Drum ====<br />
{{YouTube|id=F0i7wPdkfnU|width=400|height=300}}<br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Kayra & Waleed<br />
|Day 1, 11:15 am - 1:15 pm<br />
|-<br />
|Xuanzhe & Xintao<br />
|Day 1, 1:15 pm - 3:15 pm<br />
|-<br />
|Xinqiao & Victor<br />
|Day 1, 3:15 pm - 5:15 pm<br />
|-<br />
|George & Victor<br />
|Day 1, 5:15 pm - 6:15 pm<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 1, 6:15 pm - 7:45 pm<br />
|-<br />
|Xuanzhe & George<br />
|Day 2, 8 am - 10 am<br />
|-<br />
|Xinqiao & Xintao<br />
|Day 2, 10 am - 12 am<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 2, 12 pm - 13:15 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/collab/ui/session/join/4f344f8c24284bcda3cf2eed400a4abc Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
I'm Xinqiao (Xinq), a member of the mechanical sub-team. I contributed to the discussion regarding drum size, the design process for the drive system, and the lint filter. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606935Course:VANT151/2020/Team5/Team5Main2020-07-13T17:16:46Z<p>Lulu: </p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
[[File:Drum(team5).jpg|thumb|<br />
The size of the drum is 0.92L.<br />
]]<br />
<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
[[File:Turbine Vant 151.jpg|thumb|280x280px|<br />
The scale drawing of the centrifugal turbine. <br />
]]<br />
<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
[[File:Lint filter(team5).jpg|thumb|<br />
The scale drawing of the lint filter (45 mm x 40 mm).<br />
]]<br />
<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
==== Video 1: Rotating Drum ====<br />
{{YouTube|id=F0i7wPdkfnU|width=|height=500}}<br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Kayra & Waleed<br />
|Day 1, 11:15 am - 1:15 pm<br />
|-<br />
|Xuanzhe & Xintao<br />
|Day 1, 1:15 pm - 3:15 pm<br />
|-<br />
|Xinqiao & Victor<br />
|Day 1, 3:15 pm - 5:15 pm<br />
|-<br />
|George & Victor<br />
|Day 1, 5:15 pm - 6:15 pm<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 1, 6:15 pm - 7:45 pm<br />
|-<br />
|Xuanzhe & George<br />
|Day 2, 8 am - 10 am<br />
|-<br />
|Xinqiao & Xintao<br />
|Day 2, 10 am - 12 am<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 2, 12 pm - 13:15 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/collab/ui/session/join/4f344f8c24284bcda3cf2eed400a4abc Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
I'm Xinqiao (Xinq), a member of the mechanical sub-team. I contributed to the discussion regarding drum size, the design process for the drive system, and the lint filter. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606934Course:VANT151/2020/Team5/Team5Main2020-07-13T17:14:52Z<p>Lulu: /* Mechanical Design */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
[[File:Drum(team5).jpg|thumb|<br />
The size of the drum is 0.92L.<br />
]]<br />
<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
[[File:Turbine Vant 151.jpg|thumb|280x280px|<br />
The scale drawing of the centrifugal turbine. <br />
]]<br />
<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
[[File:Lint filter(team5).jpg|thumb|<br />
The scale drawing of the lint filter (45 mm x 40 mm).<br />
]]<br />
<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
{{Https://youtu.be/F0i7wPdkfnU}} <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Kayra & Waleed<br />
|Day 1, 11:15 am - 1:15 pm<br />
|-<br />
|Xuanzhe & Xintao<br />
|Day 1, 1:15 pm - 3:15 pm<br />
|-<br />
|Xinqiao & Victor<br />
|Day 1, 3:15 pm - 5:15 pm<br />
|-<br />
|George & Victor<br />
|Day 1, 5:15 pm - 6:15 pm<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 1, 6:15 pm - 7:45 pm<br />
|-<br />
|Xuanzhe & George<br />
|Day 2, 8 am - 10 am<br />
|-<br />
|Xinqiao & Xintao<br />
|Day 2, 10 am - 12 am<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 2, 12 pm - 13:15 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/collab/ui/session/join/4f344f8c24284bcda3cf2eed400a4abc Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
I'm Xinqiao (Xinq), a member of the mechanical sub-team. I contributed to the discussion regarding drum size, the design process for the drive system, and the lint filter. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606905Course:VANT151/2020/Team5/Team5Main2020-07-13T16:36:34Z<p>Lulu: /* Live Chat */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
[[File:Drum(team5).jpg|thumb|<br />
The size of the drum is 0.92L.<br />
]]<br />
<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
[[File:Turbine Vant 151.jpg|thumb|280x280px|<br />
The scale drawing of the centrifugal turbine. <br />
]]<br />
<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
[[File:Lint filter(team5).jpg|thumb|<br />
The scale drawing of the lint filter (45 mm x 40 mm).<br />
]]<br />
<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Kayra & Waleed<br />
|Day 1, 11:15 am - 1:15 pm<br />
|-<br />
|Xuanzhe & Xintao<br />
|Day 1, 1:15 pm - 3:15 pm<br />
|-<br />
|Xinqiao & Victor<br />
|Day 1, 3:15 pm - 5:15 pm<br />
|-<br />
|George & Victor<br />
|Day 1, 5:15 pm - 6:15 pm<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 1, 6:15 pm - 7:45 pm<br />
|-<br />
|Xuanzhe & George<br />
|Day 2, 8 am - 10 am<br />
|-<br />
|Xinqiao & Xintao<br />
|Day 2, 10 am - 12 am<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 2, 12 pm - 13:15 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/collab/ui/session/join/4f344f8c24284bcda3cf2eed400a4abc Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
I'm Xinqiao (Xinq), a member of the mechanical sub-team. I contributed to the discussion regarding drum size, the design process for the drive system, and the lint filter. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606898Course:VANT151/2020/Team5/Team5Main2020-07-13T16:28:43Z<p>Lulu: /* Mechanical Design */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
[[File:Drum(team5).jpg|thumb|<br />
The size of the drum is 0.92L.<br />
]]<br />
<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
[[File:Turbine Vant 151.jpg|thumb|280x280px|<br />
The scale drawing of the centrifugal turbine. <br />
]]<br />
<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
[[File:Lint filter(team5).jpg|thumb|<br />
The scale drawing of the lint filter (45 mm x 40 mm).<br />
]]<br />
<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Kayra & Waleed<br />
|Day 1, 11:15 am - 1:15 pm<br />
|-<br />
|Xuanzhe & Xintao<br />
|Day 1, 1:15 pm - 3:15 pm<br />
|-<br />
|Xinqiao & Victor<br />
|Day 1, 3:15 pm - 5:15 pm<br />
|-<br />
|George & Victor<br />
|Day 1, 5:15 pm - 6:15 pm<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 1, 6:15 pm - 7:45 pm<br />
|-<br />
|Xuanzhe & George<br />
|Day 2, 8 am - 10 am<br />
|-<br />
|Xinqiao & Xintao<br />
|Day 2, 10 am - 12 am<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 2, 12 pm - 13:15 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/collab/ui/session/join/d952153e106b469cad4976ba92267ffe Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
I'm Xinqiao (Xinq), a member of the mechanical sub-team. I contributed to the discussion regarding drum size, the design process for the drive system, and the lint filter. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606895Course:VANT151/2020/Team5/Team5Main2020-07-13T16:24:03Z<p>Lulu: /* Mechanical Design */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
[[File:Drum(team5).jpg|thumb]]<br />
<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
[[File:Turbine Vant 151.jpg|thumb|300x300px|<br />
Turbine.<br />
]]<br />
<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
[[File:Lint filter(team5).jpg|thumb|<br />
The scale drawing of the lint filter (45 mm x 40 mm).<br />
]]<br />
<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Kayra & Waleed<br />
|Day 1, 11:15 am - 1:15 pm<br />
|-<br />
|Xuanzhe & Xintao<br />
|Day 1, 1:15 pm - 3:15 pm<br />
|-<br />
|Xinqiao & Victor<br />
|Day 1, 3:15 pm - 5:15 pm<br />
|-<br />
|George & Victor<br />
|Day 1, 5:15 pm - 6:15 pm<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 1, 6:15 pm - 7:45 pm<br />
|-<br />
|Xuanzhe & George<br />
|Day 2, 8 am - 10 am<br />
|-<br />
|Xinqiao & Xintao<br />
|Day 2, 10 am - 12 am<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 2, 12 pm - 13:15 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/collab/ui/session/join/d952153e106b469cad4976ba92267ffe Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
I'm Xinqiao (Xinq), a member of the mechanical sub-team. I contributed to the discussion regarding drum size, the design process for the drive system, and the lint filter. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=File:Heat_exchanger_team5.jpg&diff=606894File:Heat exchanger team5.jpg2020-07-13T16:21:11Z<p>Lulu: User created page with UploadWizard</p>
<hr />
<div>=={{int:filedesc}}==<br />
{{Information<br />
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|date=2020-06-28<br />
|source={{own}}<br />
|author=[[User:Lulu|Lulu]]<br />
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=={{int:license-header}}==<br />
{{self|cc-by-sa-4.0}}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606891Course:VANT151/2020/Team5/Team5Main2020-07-13T16:19:30Z<p>Lulu: /* Heat Exchanger */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
[[File:Drum(team5).jpg|thumb]]<br />
<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
[[File:Turbine Vant 151.jpg|thumb|280x280px|<br />
Turbine.<br />
]]<br />
<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
[[File:Lint filter(team5).jpg|thumb|<br />
The scale drawing of the lint filter (45 mm x 40 mm).<br />
]]<br />
<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Kayra & Waleed<br />
|Day 1, 11:15 am - 1:15 pm<br />
|-<br />
|Xuanzhe & Xintao<br />
|Day 1, 1:15 pm - 3:15 pm<br />
|-<br />
|Xinqiao & Victor<br />
|Day 1, 3:15 pm - 5:15 pm<br />
|-<br />
|George & Victor<br />
|Day 1, 5:15 pm - 6:15 pm<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 1, 6:15 pm - 7:45 pm<br />
|-<br />
|Xuanzhe & George<br />
|Day 2, 8 am - 10 am<br />
|-<br />
|Xinqiao & Xintao<br />
|Day 2, 10 am - 12 am<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 2, 12 pm - 13:15 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/collab/ui/session/join/d952153e106b469cad4976ba92267ffe Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
I'm Xinqiao (Xinq), a member of the mechanical sub-team. I contributed to the discussion regarding drum size, the design process for the drive system, and the lint filter. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=File:Turbine_Vant_151.jpg&diff=606884File:Turbine Vant 151.jpg2020-07-13T16:13:18Z<p>Lulu: User created page with UploadWizard</p>
<hr />
<div>=={{int:filedesc}}==<br />
{{Information<br />
|description={{en|1=Group Photo}}<br />
|date=2020-07-13<br />
|source={{own}}<br />
|author=[[User:Lulu|Lulu]]<br />
|permission=<br />
|other versions=<br />
}}<br />
<br />
=={{int:license-header}}==<br />
{{self|cc-by-sa-4.0}}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606877Course:VANT151/2020/Team5/Team5Main2020-07-13T16:04:14Z<p>Lulu: /* Live Chat */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Kayra & Waleed<br />
|Day 1, 11:15 am - 1:15 pm<br />
|-<br />
|Xuanzhe & Xintao<br />
|Day 1, 1:15 pm - 3:15 pm<br />
|-<br />
|Xinqiao & Victor<br />
|Day 1, 3:15 pm - 5:15 pm<br />
|-<br />
|George & Victor<br />
|Day 1, 5:15 pm - 6:15 pm<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 1, 6:15 pm - 7:45 pm<br />
|-<br />
|Xuanzhe & George<br />
|Day 2, 8 am - 10 am<br />
|-<br />
|Xinqiao & Xintao<br />
|Day 2, 10 am - 12 am<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 2, 12 pm - 13:15 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/collab/ui/session/join/d952153e106b469cad4976ba92267ffe Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
I'm Xinqiao (Xinq), a member of the mechanical sub-team. I contributed to the discussion regarding drum size, the design process for the drive system, and the lint filter. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606876Course:VANT151/2020/Team5/Team5Main2020-07-13T15:59:34Z<p>Lulu: /* Live Chat */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Kayra & Waleed<br />
|Day 1, 11:15 am - 1:15 pm<br />
|-<br />
|Xuanzhe & Xintao<br />
|Day 1, 1:15 pm - 3:15 pm<br />
|-<br />
|Xinqiao & Victor<br />
|Day 1, 3:15 pm - 5:15 pm<br />
|-<br />
|George & Victor<br />
|Day 1, 5:15 pm - 6:15 pm<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 1, 6:15 pm - 7:45 pm<br />
|-<br />
|Xuanzhe & George<br />
|Day 2, 8 am - 10 am<br />
|-<br />
|Xinqiao & Xintao<br />
|Day 2, 10 am - 12 am<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 2, 12 pm - 13:15 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/collab/ui/session/join/d952153e106b469cad4976ba92267ffe Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
I'm Xinqiao (Xinq), a member of the mechanical sub-team. I contributed to the discussion regarding drum size, the design process for the drive system, and the lint filter. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606875Course:VANT151/2020/Team5/Team5Main2020-07-13T15:57:17Z<p>Lulu: /* Live Chat */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Kayra & Waleed<br />
|Day 1, 11:15 am - 1:15 pm<br />
|-<br />
|Xuanzhe & Xintao<br />
|Day 1, 1:15 pm - 3:15 pm<br />
|-<br />
|Xinqiao & Victor<br />
|Day 1, 3:15 pm - 5:15 pm<br />
|-<br />
|George & Victor<br />
|Day 1, 5:15 pm - 6:15 pm<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 1, 6:15 pm - 7:45 pm<br />
|-<br />
|Xuanzhe & George<br />
|Day 2, 8 am - 10 am<br />
|-<br />
|Xinqiao & Xintao<br />
|Day 2, 10 am - 12 am<br />
|-<br />
|Chengyu & Wenhan<br />
|Day 2, 12 pm - 13:15 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
I'm Xinqiao (Xinq), a member of the mechanical sub-team. I contributed to the discussion regarding drum size, the design process for the drive system, and the lint filter. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606873Course:VANT151/2020/Team5/Team5Main2020-07-13T15:46:18Z<p>Lulu: /* Sub-teams: */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. A start button that runs the dryer with default values of time, humidity, temperature.<br />
<br />
2. Display the time, humidity, temperature values on the LED screen.<br />
<br />
3. Users can change and reset the values with seven buttons.<br />
<br />
4. Keep the door closed during the drying process. <br />
<br />
5. Have a timing function.<br />
<br />
7. Will automatically shut off after the drying finished. <br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 8 buttons on the breadboard connected to 1 LED. For that design, 6 buttons are used to change the time, humidity, and temperature value, 1 button is for reset all three values back to the default setting. On the left side, a button is for start running the dryer, and the the present status of the dryer on the LED. <br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three main factors that decides the drying mode, time, humidity, and temperature, in the unit of minutes and %. If the user doesn't want to change the values, he can directly press the start button to run the dryer with default values, or he can use the six buttons in the middle to increase or decrease the values. A button on the right is used to reset all values back into the default status. With the proper time, humidity, and temperature value, the user can then start drying by pressing the start button.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Victor Tao.jpg|thumb|276x276px]]Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
My name is George, and I am from China. In my mechanical sub-group, I joined in making mechanical components, which include drum drive, lint filter and power adaptor. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
My name is Xintao, and I am from China. In my mechanical sub-group, I joined in making the cad and the animation of drive system. <br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
<br />
My name is Xinqiao. In my mechanical sub-group, I joined in making the cad. <br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make the structure and enclosure of the dryer, and the opening and holes. <br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
My name is Kayra Oztoprak. and I am student from UBC. As a member in structural sub-team, my job is to make door and latch of the dryer. Also, I joined to do the features, including Tray table and Tires.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]Chengyu Yang<br />
<br />
User-Interface Group Member<br />
<br />
My name is Chengyu Yang, and I am student from Vantage program of UBC. As a member in user-interface sub-team, my primary work is to do the arduino coding, and test it with hardwares. <br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]Wenhan Song<br />
User-Interface Group Member <br />
<br />
My name is Wenhan, and I am from China. In my user-interface sub-group, my job is to do the breadboard Buttons and LCD. <br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=File:Victor_Tao.jpg&diff=606872File:Victor Tao.jpg2020-07-13T15:44:37Z<p>Lulu: User created page with UploadWizard</p>
<hr />
<div>=={{int:filedesc}}==<br />
{{Information<br />
|description={{en|1=Group Photo.}}<br />
|date=2020-07-13<br />
|source={{own}}<br />
|author=[[User:Lulu|Lulu]]<br />
|permission=<br />
|other versions=<br />
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<br />
=={{int:license-header}}==<br />
{{self|cc-by-sa-4.0}}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606794Course:VANT151/2020/Team5/Team5Main2020-07-13T09:12:34Z<p>Lulu: </p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
Hello, my name is George Cao. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606793Course:VANT151/2020/Team5/Team5Main2020-07-13T09:11:25Z<p>Lulu: /* Virtual and Actual Prototype Demo */</p>
<hr />
<div>== IHome ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
Hello, my name is George Cao. <br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606790Course:VANT151/2020/Team5/Team5Main2020-07-13T09:02:57Z<p>Lulu: /* Sub-teams: */</p>
<hr />
<div>== IHome ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Virtual and Actual Prototype Demo ==<br />
Add your video(s) of the project presentation and demo here. Do not only provide the video link. Create a short description of what each video has to say about the project so that the audience knows in advance what to expect from it. This message should be very brief (2 or 3 sentences will suffice).<br />
<br />
Video 1 (From Youtube){{YouTube|id=3gCLfhcH4gw|width=400|height=}}Video 2 (From Canvas Kaltura, if you do not have access to Youtube, submit your videos on Canvas){{Kaltura|id=0_pwn4yt7y|width=400}}<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606783Course:VANT151/2020/Team5/Team5Main2020-07-13T09:00:07Z<p>Lulu: /* Sub-teams: */</p>
<hr />
<div>== IHome ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Virtual and Actual Prototype Demo ==<br />
Add your video(s) of the project presentation and demo here. Do not only provide the video link. Create a short description of what each video has to say about the project so that the audience knows in advance what to expect from it. This message should be very brief (2 or 3 sentences will suffice).<br />
<br />
Video 1 (From Youtube){{YouTube|id=3gCLfhcH4gw|width=400|height=}}Video 2 (From Canvas Kaltura, if you do not have access to Youtube, submit your videos on Canvas){{Kaltura|id=0_pwn4yt7y|width=400}}<br />
<br />
=== References ===<br />
Add your reference list here.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
|[[File:Xinq Wan.jpg|thumb|270x270px|<br />
Xinqiao Wan<br />
]]Xinqiao Wan<br />
Mechanical Group Member<br />
|<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|Kayra Oztoprak<br />
<br />
Structural Group Member<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|Waleed Ai-Shukri<br />
Structural Group Member<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}<br />
<br />
=== Contact Information ===<br />
You may add an electronic address or social media links for the public to follow the project/company.</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606782Course:VANT151/2020/Team5/Team5Main2020-07-13T08:55:34Z<p>Lulu: /* Sub-teams: */</p>
<hr />
<div>== IHome ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Virtual and Actual Prototype Demo ==<br />
Add your video(s) of the project presentation and demo here. Do not only provide the video link. Create a short description of what each video has to say about the project so that the audience knows in advance what to expect from it. This message should be very brief (2 or 3 sentences will suffice).<br />
<br />
Video 1 (From Youtube){{YouTube|id=3gCLfhcH4gw|width=400|height=}}Video 2 (From Canvas Kaltura, if you do not have access to Youtube, submit your videos on Canvas){{Kaltura|id=0_pwn4yt7y|width=400}}<br />
<br />
=== References ===<br />
Add your reference list here.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]George Cao<br />
Mechanical Group Member<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]Xintao Kang<br />
Mechanical Group Member<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}<br />
<br />
=== Contact Information ===<br />
You may add an electronic address or social media links for the public to follow the project/company.</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606779Course:VANT151/2020/Team5/Team5Main2020-07-13T08:48:52Z<p>Lulu: /* Sub-teams: */</p>
<hr />
<div>== IHome ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Virtual and Actual Prototype Demo ==<br />
Add your video(s) of the project presentation and demo here. Do not only provide the video link. Create a short description of what each video has to say about the project so that the audience knows in advance what to expect from it. This message should be very brief (2 or 3 sentences will suffice).<br />
<br />
Video 1 (From Youtube){{YouTube|id=3gCLfhcH4gw|width=400|height=}}Video 2 (From Canvas Kaltura, if you do not have access to Youtube, submit your videos on Canvas){{Kaltura|id=0_pwn4yt7y|width=400}}<br />
<br />
=== References ===<br />
Add your reference list here.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-Team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-Team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|Victor Tao<br />
'''Team Leader'''<br />
<br />
Electrical/Electronic Group Member<br />
<br />
I am Victor Tao, the leader of Team 5. I provided the main design ideas and the main functions of our clothes dryer. Also, I am a member of Electrical Sub-Team. I am willing to answer your questions related to technical issues. <br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the Arduino, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}<br />
<br />
=== Contact Information ===<br />
You may add an electronic address or social media links for the public to follow the project/company.</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606777Course:VANT151/2020/Team5/Team5Main2020-07-13T08:44:54Z<p>Lulu: /* Sub-teams: */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Virtual and Actual Prototype Demo ==<br />
Add your video(s) of the project presentation and demo here. Do not only provide the video link. Create a short description of what each video has to say about the project so that the audience knows in advance what to expect from it. This message should be very brief (2 or 3 sentences will suffice).<br />
<br />
Video 1 (From Youtube){{YouTube|id=3gCLfhcH4gw|width=400|height=}}Video 2 (From Canvas Kaltura, if you do not have access to Youtube, submit your videos on Canvas){{Kaltura|id=0_pwn4yt7y|width=400}}<br />
<br />
=== References ===<br />
Add your reference list here.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|Victor Tao<br />
'''Team Leader'''<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the ARDUINO, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}<br />
<br />
=== Contact Information ===<br />
You may add an electronic address or social media links for the public to follow the project/company.</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606776Course:VANT151/2020/Team5/Team5Main2020-07-13T08:44:36Z<p>Lulu: /* Sub-teams: */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Virtual and Actual Prototype Demo ==<br />
Add your video(s) of the project presentation and demo here. Do not only provide the video link. Create a short description of what each video has to say about the project so that the audience knows in advance what to expect from it. This message should be very brief (2 or 3 sentences will suffice).<br />
<br />
Video 1 (From Youtube){{YouTube|id=3gCLfhcH4gw|width=400|height=}}Video 2 (From Canvas Kaltura, if you do not have access to Youtube, submit your videos on Canvas){{Kaltura|id=0_pwn4yt7y|width=400}}<br />
<br />
=== References ===<br />
Add your reference list here.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="sortable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|Victor Tao<br />
'''Team Leader'''<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the ARDUINO, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}<br />
<br />
=== Contact Information ===<br />
You may add an electronic address or social media links for the public to follow the project/company.</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606775Course:VANT151/2020/Team5/Team5Main2020-07-13T08:44:09Z<p>Lulu: /* Sub-teams: */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Virtual and Actual Prototype Demo ==<br />
Add your video(s) of the project presentation and demo here. Do not only provide the video link. Create a short description of what each video has to say about the project so that the audience knows in advance what to expect from it. This message should be very brief (2 or 3 sentences will suffice).<br />
<br />
Video 1 (From Youtube){{YouTube|id=3gCLfhcH4gw|width=400|height=}}Video 2 (From Canvas Kaltura, if you do not have access to Youtube, submit your videos on Canvas){{Kaltura|id=0_pwn4yt7y|width=400}}<br />
<br />
=== References ===<br />
Add your reference list here.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable mw-collapsible mw-collapsed"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px|<br />
Xueyi Wang<br />
]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|Victor Tao<br />
'''Team Leader'''<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px|<br />
Xuanzhe Cao<br />
]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the ARDUINO, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px|<br />
George Cao<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xintao Kang.jpg|thumb|270x270px|<br />
Xintao Kang<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px|<br />
Chengyu Yang<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Wenhan Song.jpg|thumb|270x270px|<br />
Wenhan Song<br />
]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}<br />
<br />
=== Contact Information ===<br />
You may add an electronic address or social media links for the public to follow the project/company.</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606774Course:VANT151/2020/Team5/Team5Main2020-07-13T08:41:55Z<p>Lulu: /* Sub-teams: */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Virtual and Actual Prototype Demo ==<br />
Add your video(s) of the project presentation and demo here. Do not only provide the video link. Create a short description of what each video has to say about the project so that the audience knows in advance what to expect from it. This message should be very brief (2 or 3 sentences will suffice).<br />
<br />
Video 1 (From Youtube){{YouTube|id=3gCLfhcH4gw|width=400|height=}}Video 2 (From Canvas Kaltura, if you do not have access to Youtube, submit your videos on Canvas){{Kaltura|id=0_pwn4yt7y|width=400}}<br />
<br />
=== References ===<br />
Add your reference list here.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable mw-collapsible mw-collapsed"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|Victor Tao<br />
'''Team Leader'''<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from China. <br />
<br />
In my group, I joined the building of the circuit and code. This is the second time I used the ARDUINO, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xintao Kang.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Wenhan Song.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}<br />
<br />
=== Contact Information ===<br />
You may add an electronic address or social media links for the public to follow the project/company.</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606771Course:VANT151/2020/Team5/Team5Main2020-07-13T08:37:57Z<p>Lulu: /* Sub-teams: */</p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Virtual and Actual Prototype Demo ==<br />
Add your video(s) of the project presentation and demo here. Do not only provide the video link. Create a short description of what each video has to say about the project so that the audience knows in advance what to expect from it. This message should be very brief (2 or 3 sentences will suffice).<br />
<br />
Video 1 (From Youtube){{YouTube|id=3gCLfhcH4gw|width=400|height=}}Video 2 (From Canvas Kaltura, if you do not have access to Youtube, submit your videos on Canvas){{Kaltura|id=0_pwn4yt7y|width=400}}<br />
<br />
=== References ===<br />
Add your reference list here.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|Victor Tao<br />
'''Team Leader'''<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
I come from Henan, China. In my group, I joined the building of the circuit and code. This is the second time I used the ARDUINO, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xintao Kang.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Wenhan Song.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}<br />
<br />
=== Contact Information ===<br />
You may add an electronic address or social media links for the public to follow the project/company.</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606769Course:VANT151/2020/Team5/Team5Main2020-07-13T08:37:15Z<p>Lulu: </p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Virtual and Actual Prototype Demo ==<br />
Add your video(s) of the project presentation and demo here. Do not only provide the video link. Create a short description of what each video has to say about the project so that the audience knows in advance what to expect from it. This message should be very brief (2 or 3 sentences will suffice).<br />
<br />
Video 1 (From Youtube){{YouTube|id=3gCLfhcH4gw|width=400|height=}}Video 2 (From Canvas Kaltura, if you do not have access to Youtube, submit your videos on Canvas){{Kaltura|id=0_pwn4yt7y|width=400}}<br />
<br />
=== References ===<br />
Add your reference list here.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Ernest_Goh.jpg|link=https://wiki.ubc.ca/File:Ernest_Goh.jpg|thumb|Aaaaa]]Victor Tao<br />
'''Team Leader'''<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
I come from Henan, China. In my group, I joined the building of the circuit and code. This is the second time I used the ARDUINO, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xintao Kang.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Wenhan Song.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}<br />
<br />
=== Contact Information ===<br />
You may add an electronic address or social media links for the public to follow the project/company.</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606766Course:VANT151/2020/Team5/Team5Main2020-07-13T08:34:02Z<p>Lulu: </p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Virtual and Actual Prototype Demo ==<br />
Add your video(s) of the project presentation and demo here. Do not only provide the video link. Create a short description of what each video has to say about the project so that the audience knows in advance what to expect from it. This message should be very brief (2 or 3 sentences will suffice).<br />
<br />
Video 1 (From Youtube){{YouTube|id=3gCLfhcH4gw|width=400|height=}}Video 2 (From Canvas Kaltura, if you do not have access to Youtube, submit your videos on Canvas){{Kaltura|id=0_pwn4yt7y|width=400}}<br />
<br />
=== References ===<br />
Add your reference list here.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation Sub-team member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Ernest_Goh.jpg|link=https://wiki.ubc.ca/File:Ernest_Goh.jpg|thumb|Aaaaa]]Victor Tao<br />
'''Team Leader'''<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px]]Xuanzhe Cao<br />
Electrical/Electronic Group Member<br />
<br />
My name is Xuanzhe Cao. I come from Henan, China. In my group I joined the building of the circuit and code. This is the second time I used the ARDUINO, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xintao Kang.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Thermal<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Wenhan Song.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}<br />
<br />
=== Contact Information ===<br />
You may add an electronic address or social media links for the public to follow the project/company.</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606764Course:VANT151/2020/Team5/Team5Main2020-07-13T08:31:42Z<p>Lulu: </p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
==Mechanical Design==<br />
The major deliverable of the mechanical sub-team is drum size and drive design. In addition to the basic components, a centrifugal turbine is designed to minimize the required energy for normal functioning of the dryer; A lint filter is designed to obstruct dust. <br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a drum drive and other major mechanical components that contributes to the function of the ENEREC dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Drum(team5).jpg|thumb|The scale of the drum drive with the volume of 0.92 L.]]<br />
[[File:Lint filter(team5).jpg|thumb|The scale drawing of the lint filter (45 mm x 40 mm). ]]<br />
<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger====<br />
The heat exchanger is designed to endure a maximum temperature of 200 degrees Celsius. It uses six PPE tubes whose melting point is 268 degrees Celsius for heat exchanging. The tubes are curved around the drum to increase contacting area and to save space. <br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.Connecting each parts well.<br />
<br />
2. Able to run the motor, fan and heater.<br />
<br />
3. Have a stable power supply.<br />
<br />
4. Have enough code that can control the circuit and UI parts.<br />
<br />
5. Have safety precautions.<br />
<br />
==== Objectives ====<br />
1.Running the system successfully.<br />
<br />
2. Making sure is can be controlled well.<br />
<br />
==== Constraints ====<br />
[[File:Whole_Circuit.jpg|thumb|326x326px|A photograph of the whole circuit]]<br />
1.The circuit should be as simple as possible.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
Getting power from a 24V, 2,5A Power jack.<br />
<br />
==== Fan Circuit ====<br />
Fan circuit is at bottom left of the circuit, connected to the power supply by a bridge rectifier, 47k resistor and capacitor help to adjast the flow.<br />
<br />
==== Drum Motor Circuit ====<br />
Motor circuit is nearby the fan circuit, which is in the middle of whole circuit.<br />
<br />
==== Heater Circuit ====<br />
A simple heater which is connected to the circuit.<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The sensor is directly connected to the ARDUINO for getting the data and code to run.<br />
<br />
== Virtual and Actual Prototype Demo ==<br />
Add your video(s) of the project presentation and demo here. Do not only provide the video link. Create a short description of what each video has to say about the project so that the audience knows in advance what to expect from it. This message should be very brief (2 or 3 sentences will suffice).<br />
<br />
Video 1 (From Youtube){{YouTube|id=3gCLfhcH4gw|width=400|height=}}Video 2 (From Canvas Kaltura, if you do not have access to Youtube, submit your videos on Canvas){{Kaltura|id=0_pwn4yt7y|width=400}}<br />
<br />
=== References ===<br />
Add your reference list here.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation Group Member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation group member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px]]Xueyi Wang<br />
<br />
Documentation Group Member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I am a member of Documentation Sub-team. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Ernest_Goh.jpg|link=https://wiki.ubc.ca/File:Ernest_Goh.jpg|thumb|Aaaaa]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px]]Xuanzhe Cao<br />
EE (electrical) Group Member<br />
<br />
I come from Henan, China. In my group I joined the building of the circuit and code. This is the second time I used the ARDUINO, it is an important experience for me.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xintao Kang.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Thermal<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Wenhan Song.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}<br />
<br />
=== Contact Information ===<br />
You may add an electronic address or social media links for the public to follow the project/company.</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606730Course:VANT151/2020/Team5/Team5Main2020-07-13T07:21:36Z<p>Lulu: </p>
<hr />
<div>== Home ==<br />
===Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer.<br />
==Project Overview==<br />
===Problem Statement===<br />
Nowadays, clothes dryers use a lot of electricity, the average cost to dry clothes is around a dollar. The high cost of dryer working increased the financial burden of users and society and increased the harm to the environment and the wild animals. Therefore, engineers must build up optimized dryers that can recycle energy and reduce cost. In this project, our team is going to create an energy recovery clothes dryer. The main design concept will focus on energy efficiency and environmental friendliness. To achieve this, the controllability of the dryer will be important in this design project.<br />
===Project Function===<br />
1. An opening with a door to transfer clothes in and out.<br />
<br />
2. The clothes dryer can evenly dry clothes with the rotation of drum drive.<br />
<br />
3. An exhaust vent that can emit water from the dryer.<br />
<br />
4. An operation panel that allows users to control the temperature of the dryer.<br />
<br />
5. A working mechanism that can flexibly change the temperature of the dryer.<br />
===Project Objective===<br />
1. Controllable drying time.<br />
<br />
2. Controllable drying temperature.<br />
<br />
3. Energy recycling.<br />
<br />
4. Easy to be controlled by users.<br />
<br />
=== Project Constraints ===<br />
1. The size cannot exceed 250 x 220 x 300 mm. The capacity should be at least 0.5 L.<br />
<br />
2. The maximum allowable electrical power consumption is 12 V AC, 12 VA.<br />
<br />
3. The dryer must have an alphanumeric LCD and navigation buttons for the user interface.<br />
<br />
4. The dryer must have an automatic operating mode and a manual operating mode.<br />
<br />
5. The dryer must be able to dry a cotton handkerchief within 1 hour.<br />
<br />
Final Report can be accessed from here: https://1drv.ms/w/s!AhFElHirU3sWgjrBXUkb4QB_4tDr<br />
<br />
==User-Interface Design==<br />
Overview of the user-interface sub-system<br />
===Requirements===<br />
====Functions====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
====Objectives====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
====Constraints====<br />
#The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
#The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
#The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
===The Design===<br />
====Hardware Layout====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
====Operating Sequence and Program Flow Chart====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
==Mechanical Design==<br />
Overview of the mechanical sub-system<br />
=====Functions=====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
=====Objectives=====<br />
Designing a functioning drum drive which is the main component of the dryer for the dryer.<br />
=====Constraints=====<br />
*Maximum size of dryer: 220 x 250 x 300 mm<br />
*Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>)<br />
*The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
===The Design===<br />
====Drum Size====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.[[File:Scale_of_the_drum_drive.jpg|link=|thumb|The scale of the drum drive with the volume of 30cm^2.]][[File:The_over_view_of_the_drumdrive.jpg|link=|thumb|The final design for mechanical parts]]<br />
====Drive System and Motor Support====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long.<br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum.<br />
====Special Feature: Centrifugal Turbine====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy.<br />
====Lint Filter====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
====Heat Exchanger Top====<br />
(Describe the Heat Exchanger Top here)<br />
====Temperature and Humidity Sensor====<br />
The extra feature will be attached to the backboard of the drum. Extra screw holes will be designed as well.<br />
<br />
== Structural Design ==<br />
The goal of the structural sub-team is to open holes for the LCD screen and LED lights, make a door and latch, and to make special features such as, adding a tray table, standing, music player etc<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
Structural sub-team is responsible for making holes for LCD and LED lights, make doors and bolts, and make some other functions.<br />
<br />
==== Objectives ====<br />
The design objectives of the structural sub-system are<br />
<br />
1. The EneRec Dryer should have a control panel.<br />
<br />
2. The control panel should be easy to be controlled by the users<br />
<br />
==== Constraints ====<br />
The constraints of the structural sub-system are<br />
<br />
1. The size cannot exceed 250 x 220 x 300 mm.<br />
<br />
2. The EneRec Dryer should have an alphanumeric LCD and a navigation buttons.<br />
<br />
=== The Design ===<br />
<br />
==== Enclosure ====<br />
The clothes dryer is going to be a small-scale version of a regular clothes dryer with a 250x250 cm2 with a door and special features such as tires and water collection tray. The version of the clothes dryer was without a tray table but after we thought that it would be better with a tray table near it. Because this clothes dryer is going to be small and due to its size, there will be not enough space. Another design was without castor wheels. Team members thought that it would be convenient to make it portable. Furthermore, in this way, the user can grab it and take it on their vacation.<br />
<br />
==== Tray Table ====<br />
In this design, there is a tray table on the right side of the clothes dryer for the clothes basket, we thought that it would be easier to manage space with extra space.<br />
<br />
==== Tires ====<br />
Another feature we thought was tires, as mentioned in the beginning, this project is a small-scale version of the original size clothes dryer. So, it would be much better to make it portable. Moreover, with tires, it can be moved anywhere.<br />
<br />
== Electrical/Electronic Design ==<br />
The main object of EE sub-team is to make a circuit that can run the heater well. Some codes are made to ensure that the whole system can be controlled well.<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1.<br />
<br />
==== Objectives ====<br />
1.<br />
<br />
==== Constraints ====<br />
1.<br />
<br />
=== The Design ===<br />
<br />
==== Power Supply ====<br />
<br />
==== Fan Circuit ====<br />
<br />
==== Drum Motor Circuit ====<br />
<br />
==== Heater Circuit ====<br />
<br />
==== Temperature and Humidity Sensor ====<br />
<br />
== Virtual and Actual Prototype Demo ==<br />
Add your video(s) of the project presentation and demo here. Do not only provide the video link. Create a short description of what each video has to say about the project so that the audience knows in advance what to expect from it. This message should be very brief (2 or 3 sentences will suffice).<br />
<br />
Video 1 (From Youtube){{YouTube|id=3gCLfhcH4gw|width=400|height=}}Video 2 (From Canvas Kaltura, if you do not have access to Youtube, submit your videos on Canvas){{Kaltura|id=0_pwn4yt7y|width=400}}<br />
<br />
=== References ===<br />
Add your reference list here.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation group member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation group member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px]]Xueyi Wang<br />
<br />
Documentation group member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Ernest_Goh.jpg|link=https://wiki.ubc.ca/File:Ernest_Goh.jpg|thumb|Aaaaa]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xuanzhe Cao.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|[[File:Geogre Cao.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xintao Kang.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Thermal<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Wenhan Song.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}<br />
<br />
=== Contact Information ===<br />
You may add an electronic address or social media links for the public to follow the project/company.</div>Luluhttps://wiki.ubc.ca/index.php?title=File:Xinq_Wan.jpg&diff=606719File:Xinq Wan.jpg2020-07-13T07:15:54Z<p>Lulu: User created page with UploadWizard</p>
<hr />
<div>=={{int:filedesc}}==<br />
{{Information<br />
|description={{en|1=Group Photo.}}<br />
|date=2020-07-13<br />
|source={{own}}<br />
|author=[[User:Lulu|Lulu]]<br />
|permission=<br />
|other versions=<br />
}}<br />
<br />
=={{int:license-header}}==<br />
{{self|cc-by-sa-4.0}}</div>Luluhttps://wiki.ubc.ca/index.php?title=File:Xuanzhe_Cao.jpg&diff=606718File:Xuanzhe Cao.jpg2020-07-13T07:15:54Z<p>Lulu: User created page with UploadWizard</p>
<hr />
<div>=={{int:filedesc}}==<br />
{{Information<br />
|description={{en|1=Group Photo.}}<br />
|date=2020-07-13<br />
|source={{own}}<br />
|author=[[User:Lulu|Lulu]]<br />
|permission=<br />
|other versions=<br />
}}<br />
<br />
=={{int:license-header}}==<br />
{{self|cc-by-sa-4.0}}</div>Luluhttps://wiki.ubc.ca/index.php?title=File:Geogre_Cao.jpg&diff=606717File:Geogre Cao.jpg2020-07-13T07:15:54Z<p>Lulu: User created page with UploadWizard</p>
<hr />
<div>=={{int:filedesc}}==<br />
{{Information<br />
|description={{en|1=Group Photo.}}<br />
|date=2020-07-13<br />
|source={{own}}<br />
|author=[[User:Lulu|Lulu]]<br />
|permission=<br />
|other versions=<br />
}}<br />
<br />
=={{int:license-header}}==<br />
{{self|cc-by-sa-4.0}}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606711Course:VANT151/2020/Team5/Team5Main2020-07-13T06:17:48Z<p>Lulu: </p>
<hr />
<div>== Home ==<br />
<br />
=== Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature ===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer. <br />
<br />
== User-Interface Design ==<br />
Overview of the user-interface sub-system<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
<br />
==== Objectives ====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
<br />
==== Constraints ====<br />
# The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display) <br />
# The power consumption of the entire system should not exceed 3 watts (when turned on). <br />
# The power consumption of the entire system should not exceed 0.5 watts (when turned off). <br />
<br />
=== The Design ===<br />
<br />
==== Hardware Layout ====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
<br />
==== Operating Sequence and Program Flow Chart ====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
<br />
== Mechanical Design ==<br />
Overview of the mechanical sub-system<br />
<br />
===== Functions =====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
<br />
===== Objectives =====<br />
Designing a functioning drum drive which is the main component of the dryer for the dryer.<br />
<br />
===== Constraints =====<br />
* Maximum size of dryer: 220 x 250 x 300 mm<br />
* Minimum volume of drum: 0.5 L (500 cm<sup>3</sup>) <br />
* The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
<br />
=== The Design ===<br />
<br />
==== Drum Size ====<br />
The drum volume is approximately 0.92 L. The diagram below shows the basic design of the drum. The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Scale_of_the_drum_drive.jpg|link=https://wiki.ubc.ca/File:Scale_of_the_drum_drive.jpg|thumb|The scale of the drum drive with the volume of 30cm^2.]]<br />
[[File:The_over_view_of_the_drumdrive.jpg|link=https://wiki.ubc.ca/File:The_over_view_of_the_drumdrive.jpg|thumb|The final design for mechanical parts]]<br />
<br />
==== Drive System and Motor Support ====<br />
The drum drive uses centripetal force to evenly dry clothing and speeds up the drying process. Therefore, a larger surface area (that is ) would optimize the amount of clothing in one load and time required to dry. We tried to calculate the radius (r) and the height (h) that would optimize the performance of the dryer concerning volume using calculus. However, this can not be done because the optimized r and h for a given volume is respectively approaching 0 and approaching infinity. Then we attempted to find the average ratio between r and h by measuring existing models. It is found that the average radius to height ratio is 3 to 7, thus our drum drive has a diameter of 100 mm and is 116.67 mm long. <br />
<br />
Two motors are used in our design: one driving the drum, the other driving the centrifugal turbine. The motor driving the drum will be mounted to the base of the dryer, which provides primary rotational force to the drum drive through a belt system. The motor driving the turbine will be inserted into the body of the turbine. It provides additional rotational force to the drum. <br />
<br />
==== Special Feature: Centrifugal Turbine ====<br />
The turbine is designed to save the thermal energy carried away by hot air. The overall shape of the turbine is trapezoidal, the overall height is 50 mm, and the width of the top blade is 23 mm. The upper surface is a circle with a radius of 10 mm excluding the blade length, and the lower surface is a circle with a radius of 49 mm. The turbine is fixed at the rear of the drum. The outer layer is directly connected to the duct of the air outlet hole, thereby ensuring that almost all exhaust gas can pass through the turbine. These gases can drive the drum to rotate faster to convert thermal energy to kinetic energy. <br />
<br />
==== Lint Filter ====<br />
The lint filter is designed to obstruct fluff. When the dryer is working, the fluff mixed water can overflow from the clothes into the interior of the dryer, it is not only difficult to clean, but it may cause the failure of the dryer—even fire, in future use. The length and width of the filter are respectively 45 mm and 40 mm, and the width and thickness of the frame are 2.5 mm. Small holes are designed on both sides of the filter's handle so that the water mixed with fluff can smoothly flow into the filter. Considering the size of the drum and the entire dryer, we hope to achieve the maximum filtering effect with the smallest possible volume. Therefore, a filter is added at the bottom of the filter perpendicular to the original plane. To ensure that the filter can stop all fluff.<br />
<br />
==== Heat Exchanger Top ====<br />
(Describe the Heat Exchanger Top here)<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The extra feature will be attached to the backboard of the drum. Extra screw holes will be designed as well.<br />
<br />
== Virtual and Actual Prototype Demo ==<br />
Add your video(s) of the project presentation and demo here. Do not only provide the video link. Create a short description of what each video has to say about the project so that the audience knows in advance what to expect from it. This message should be very brief (2 or 3 sentences will suffice).<br />
<br />
Video 1 (From Youtube){{YouTube|id=3gCLfhcH4gw|width=400|height=}}Video 2 (From Canvas Kaltura, if you do not have access to Youtube, submit your videos on Canvas){{Kaltura|id=0_pwn4yt7y|width=400}}<br />
<br />
=== References ===<br />
Add your reference list here.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation group member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation group member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px]]Xueyi Wang<br />
<br />
Documentation group member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Ernest_Goh.jpg|link=https://wiki.ubc.ca/File:Ernest_Goh.jpg|thumb|Aaaaa]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Ernest_Goh.jpg|link=https://wiki.ubc.ca/File:Ernest_Goh.jpg|thumb]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Xintao Kang.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Thermal<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|[[File:Chengyu Yang.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Wenhan Song.jpg|thumb|270x270px]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}<br />
<br />
=== Contact Information ===<br />
You may add an electronic address or social media links for the public to follow the project/company.</div>Luluhttps://wiki.ubc.ca/index.php?title=File:Xintao_Kang.jpg&diff=606709File:Xintao Kang.jpg2020-07-13T06:13:54Z<p>Lulu: User created page with UploadWizard</p>
<hr />
<div>=={{int:filedesc}}==<br />
{{Information<br />
|description={{en|1=Group Photo.}}<br />
|date=2020-07-12<br />
|source={{own}}<br />
|author=[[User:Lulu|Lulu]]<br />
|permission=<br />
|other versions=<br />
}}<br />
<br />
=={{int:license-header}}==<br />
{{self|cc-by-sa-4.0}}</div>Luluhttps://wiki.ubc.ca/index.php?title=File:Wenhan_Song.jpg&diff=606708File:Wenhan Song.jpg2020-07-13T06:13:54Z<p>Lulu: User created page with UploadWizard</p>
<hr />
<div>=={{int:filedesc}}==<br />
{{Information<br />
|description={{en|1=Group Photo.}}<br />
|date=2020-07-12<br />
|source={{own}}<br />
|author=[[User:Lulu|Lulu]]<br />
|permission=<br />
|other versions=<br />
}}<br />
<br />
=={{int:license-header}}==<br />
{{self|cc-by-sa-4.0}}</div>Luluhttps://wiki.ubc.ca/index.php?title=File:Chengyu_Yang.jpg&diff=606707File:Chengyu Yang.jpg2020-07-13T06:13:54Z<p>Lulu: User created page with UploadWizard</p>
<hr />
<div>=={{int:filedesc}}==<br />
{{Information<br />
|description={{en|1=Group Photo.}}<br />
|date=2020-07-12<br />
|source={{own}}<br />
|author=[[User:Lulu|Lulu]]<br />
|permission=<br />
|other versions=<br />
}}<br />
<br />
=={{int:license-header}}==<br />
{{self|cc-by-sa-4.0}}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606702Course:VANT151/2020/Team5/Team5Main2020-07-13T06:07:20Z<p>Lulu: </p>
<hr />
<div>== Home ==<br />
<br />
=== Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature ===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer. <br />
<br />
== User-Interface Design ==<br />
Overview of the user-interface sub-system<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
<br />
==== Objectives ====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
<br />
==== Constraints ====<br />
1. The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
<br />
2. The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
<br />
3. The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
<br />
=== The Design ===<br />
<br />
==== Hardware Layout ====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
<br />
==== Operating Sequence and Program Flow Chart ====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
<br />
== Mechanical Design ==<br />
Overview of the mechanical sub-system<br />
<br />
===== Functions =====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
<br />
===== Objectives =====<br />
Designing a functioning drum drive which is the main component of the dryer for the dryer.<br />
<br />
===== Constraints =====<br />
- Limited equipment<br />
<br />
- Tight timeline<br />
<br />
- The drum volume must be greater or equal to 0.5L 3.4<br />
<br />
- The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
<br />
=== The Design ===<br />
<br />
==== Drum Size ====<br />
The drum volume is approximately 0.5L. The diagram below shows the basic design of the drum (front and back rings are attached). The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Scale_of_the_drum_drive.jpg|link=https://wiki.ubc.ca/File:Scale_of_the_drum_drive.jpg|thumb|The scale of the drum drive with the volume of 30cm^2.]]<br />
[[File:The_over_view_of_the_drumdrive.jpg|link=https://wiki.ubc.ca/File:The_over_view_of_the_drumdrive.jpg|thumb|The final design for mechanical parts]]<br />
<br />
==== Drive System and Motor Support ====<br />
A motor will be used for the drum drive to provide rotation. The mounting position of the motor will be on the outside of the drum, on the bottom panel. Additional support will be built to support the motor. A bracket is used to secure the motor from slipping. Two pulleys will be used. The first pulley (figure 6) is called the drive pulley, which would be used to drive the drum. It is attached at the front of the motor. The second pulley (figure 7) is the tension pulley, which will be used to provide tension for the belt and prevent it from slipping. The tension pulley is placed next to the motor, and it has a base support that is attached on the bottom panel. Figure 4 and 5 are two design alternatives for the connection of the two pulleys. The final design is as shown in figure 5: the two pulleys are connected in a zig zag direction so that the tension pulley can provide sufficient tension for the belt. The belt will first go around the drum, through the drive pulley and the tension pulley.<br />
<br />
==== Heat Exchanger Top ====<br />
(Describe the Heat Exchanger Top here)<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The extra feature will be attached to the backboard of the drum. Extra screw holes will be designed as well.<br />
<br />
== Virtual and Actual Prototype Demo ==<br />
Add your video(s) of the project presentation and demo here. Do not only provide the video link. Create a short description of what each video has to say about the project so that the audience knows in advance what to expect from it. This message should be very brief (2 or 3 sentences will suffice).<br />
<br />
Video 1 (From Youtube){{YouTube|id=3gCLfhcH4gw|width=400|height=}}Video 2 (From Canvas Kaltura, if you do not have access to Youtube, submit your videos on Canvas){{Kaltura|id=0_pwn4yt7y|width=400}}<br />
<br />
=== References ===<br />
Add your reference list here.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation group member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation group member, I mainly work on the format and executive summary.<br />
|[[File:Lulu Wang 20200712215909.jpg|thumb|270x270px]]Xueyi Wang<br />
<br />
Documentation group member<br />
<br />
My full name is Xueyi Wang and my preferred name is Lulu. I mainly work on the group website and the presentation slides. <br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Ernest_Goh.jpg|link=https://wiki.ubc.ca/File:Ernest_Goh.jpg|thumb|Aaaaa]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Ernest_Goh.jpg|link=https://wiki.ubc.ca/File:Ernest_Goh.jpg|thumb]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Thermal<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}<br />
<br />
=== Contact Information ===<br />
You may add an electronic address or social media links for the public to follow the project/company.</div>Luluhttps://wiki.ubc.ca/index.php?title=File:Lulu_Wang_20200712215909.jpg&diff=606695File:Lulu Wang 20200712215909.jpg2020-07-13T05:36:40Z<p>Lulu: </p>
<hr />
<div>=={{int:filedesc}}==<br />
{{Information<br />
|description=Group Photo.<br />
|date=2020-07-12<br />
|source={{own}}<br />
|author=[[User:Lulu|Lulu]]<br />
|permission=<br />
|other versions=<br />
}}<br />
<br />
=={{int:license-header}}==<br />
{{self|cc-by-sa-4.0}}</div>Luluhttps://wiki.ubc.ca/index.php?title=File:Ophelia_Ren_20200712215925.jpg&diff=606694File:Ophelia Ren 20200712215925.jpg2020-07-13T05:36:19Z<p>Lulu: </p>
<hr />
<div>=={{int:filedesc}}==<br />
{{Information<br />
|description=Group Photo.<br />
|date=2020-07-12<br />
|source={{own}}<br />
|author=[[User:Lulu|Lulu]]<br />
|permission=<br />
|other versions=<br />
}}<br />
<br />
=={{int:license-header}}==<br />
{{self|cc-by-sa-4.0}}</div>Luluhttps://wiki.ubc.ca/index.php?title=Course:VANT151/2020/Team5/Team5Main&diff=606693Course:VANT151/2020/Team5/Team5Main2020-07-13T05:35:48Z<p>Lulu: </p>
<hr />
<div>== Home ==<br />
<br />
=== Welcome to Team 5 project - Energy Recovery Clothes Dryer with Protective Feature ===<br />
We are Team 5. Welcome to Energy Recovery Clothes Dryer! Our research team consists of 11 people, Victor, Xuanzhe, George, Xinq, Xintao, Kayra, Waleed, Chengyu, Wenhan, Xueyi, Xiangyi, who included in 5 sub-teams, documentation, electronics, structural, mechanical, and UI design. Our objective is to find a new way to reuse heat and to improve the efficiency of the clothes dryer. <br />
<br />
== User-Interface Design ==<br />
Overview of the user-interface sub-system<br />
<br />
=== Requirements ===<br />
<br />
==== Functions ====<br />
1. Switch on and off the washer with a power switch<br />
<br />
2. Able to display and respond to user action<br />
<br />
3. Have multiple washing mode for selection<br />
<br />
4. Have a timing function.<br />
<br />
5. Receive signals from the sensors to ensure the door is closed<br />
<br />
6. Have a reminder alarm<br />
<br />
7. Able to switch off without operation done for a long period<br />
<br />
==== Objectives ====<br />
1. have nice UI design (keep reading the buttons until user stop pressing)<br />
<br />
2. have a reasonable washing and drying time<br />
<br />
==== Constraints ====<br />
1. The size of the UI system should not be bigger than 100x150x60 (mm) (including the LCD display)<br />
<br />
2. The power consumption of the entire system should not exceed 3 watts (when turned on).<br />
<br />
3. The power consumption of the entire system should not exceed 0.5 watts (when turned off).<br />
<br />
=== The Design ===<br />
<br />
==== Hardware Layout ====<br />
The design has 5 buttons, one switch, one buzzle, and two LEDs. For that design, four buttons are for selecting the objects as cursors, and one is used as a confirm button. At the right of the five buttons, a switch and two LEDs were installed for switching on/ off the dryer and indicate the working status of the dryer.<br />
<br />
==== Operating Sequence and Program Flow Chart ====<br />
[[:File:Flowchat.png]]<br />
<br />
The dryer has three drying modes for the user to choose, Auto, Quick Dry, and Customize. With auto mode being selected, the dryer will sense the weight of the clothes automatically and calculate the time required, in this mode, temperature and humidity will be set to standard at 40 degrees and 50%. Following with the quick-dry mode, with this mode, the dryer will start the drying procedure with maximum temperature and rotation speed and minimum humidity. For people who wear flimsy clothes, they can select the Customize, where they can select the temperature, rotation speed, and humidity.<br />
<br />
== Mechanical Design ==<br />
Overview of the mechanical sub-system<br />
<br />
===== Functions =====<br />
The clothes dryer allows heat and airflow to dry the clothes efficiently and evenly.<br />
<br />
===== Objectives =====<br />
Designing a functioning drum drive which is the main component of the dryer for the dryer.<br />
<br />
===== Constraints =====<br />
- Limited equipment<br />
<br />
- Tight timeline<br />
<br />
- The drum volume must be greater or equal to 0.5L 3.4<br />
<br />
- The clothes dryer must dry the 0.5 L of clothes within 1 hour<br />
<br />
=== The Design ===<br />
<br />
==== Drum Size ====<br />
The drum volume is approximately 0.5L. The diagram below shows the basic design of the drum (front and back rings are attached). The drum is designed to dry a small piece of clothing in a short time. It is also decided to rotate at a desired speed.<br />
[[File:Scale_of_the_drum_drive.jpg|link=https://wiki.ubc.ca/File:Scale_of_the_drum_drive.jpg|thumb|The scale of the drum drive with the volume of 30cm^2.]]<br />
[[File:The_over_view_of_the_drumdrive.jpg|link=https://wiki.ubc.ca/File:The_over_view_of_the_drumdrive.jpg|thumb|The final design for mechanical parts]]<br />
<br />
==== Drive System and Motor Support ====<br />
A motor will be used for the drum drive to provide rotation. The mounting position of the motor will be on the outside of the drum, on the bottom panel. Additional support will be built to support the motor. A bracket is used to secure the motor from slipping. Two pulleys will be used. The first pulley (figure 6) is called the drive pulley, which would be used to drive the drum. It is attached at the front of the motor. The second pulley (figure 7) is the tension pulley, which will be used to provide tension for the belt and prevent it from slipping. The tension pulley is placed next to the motor, and it has a base support that is attached on the bottom panel. Figure 4 and 5 are two design alternatives for the connection of the two pulleys. The final design is as shown in figure 5: the two pulleys are connected in a zig zag direction so that the tension pulley can provide sufficient tension for the belt. The belt will first go around the drum, through the drive pulley and the tension pulley.<br />
<br />
==== Heat Exchanger Top ====<br />
(Describe the Heat Exchanger Top here)<br />
<br />
==== Temperature and Humidity Sensor ====<br />
The extra feature will be attached to the backboard of the drum. Extra screw holes will be designed as well.<br />
<br />
== Virtual and Actual Prototype Demo ==<br />
Add your video(s) of the project presentation and demo here. Do not only provide the video link. Create a short description of what each video has to say about the project so that the audience knows in advance what to expect from it. This message should be very brief (2 or 3 sentences will suffice).<br />
<br />
Video 1 (From Youtube){{YouTube|id=3gCLfhcH4gw|width=400|height=}}Video 2 (From Canvas Kaltura, if you do not have access to Youtube, submit your videos on Canvas){{Kaltura|id=0_pwn4yt7y|width=400}}<br />
<br />
=== References ===<br />
Add your reference list here.<br />
<br />
== Live Chat ==<br />
We are on duty during capstone hours according to this roster:<br />
{| class="wikitable"<br />
!Names<br />
!Day & Time<br />
|-<br />
|Annie & Bobby<br />
|Day 1, 10 am - 12 pm<br />
|-<br />
|Charlie & Danny<br />
|Day 1, 12 pm - 2 pm<br />
|-<br />
|Ellie & Franky<br />
|Day 1, 2 pm - 4 pm<br />
|-<br />
|Gandhi & Holly<br />
|Day 2, 10 am - 12 pm<br />
|-<br />
|Indy & Julie<br />
|Day 2, 12 pm - 2 pm<br />
|-<br />
|Kelly & Lennie<br />
|Day 2, 2 pm - 4 pm<br />
|}<br />
Chat with us on [https://ca.bbcollab.com/guest/d49f434204e5439882ec40bd0b5f52c3 Collaborate Ultra!]<br />
<br />
== About Us ==<br />
<br />
=== Sub-teams: ===<br />
{| class="wikitable"<br />
! colspan="2" |Documentation<br />
|-<br />
|[[File:Ophelia Ren 20200712215925.jpg|thumb|270x270px|Ophelia Ren]]Xiangyi Ren<br />
Documentation group member<br />
<br />
My name is Xiangyi Ren and I am a student from UBC. As a Documentation group member, I mainly work on format and executive summary.<br />
|[[File:CGI_Woman.jpg|link=https://wiki.ubc.ca/File:CGI_Woman.jpg|thumb|Aaaaa]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Electrical/Electronic<br />
|-<br />
|[[File:Ernest_Goh.jpg|link=https://wiki.ubc.ca/File:Ernest_Goh.jpg|thumb|Aaaaa]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|[[File:Ernest_Goh.jpg|link=https://wiki.ubc.ca/File:Ernest_Goh.jpg|thumb]]First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Mechanical<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Structural<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |Thermal<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|-<br />
! colspan="2" |User-Interface<br />
|-<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|First name family name<br />
Position (role played in the group)<br />
<br />
In a paragraph, say who you are, state your contributions to the project and mention something relevant that you learned from the experience.<br />
|}<br />
<br />
=== Contact Information ===<br />
You may add an electronic address or social media links for the public to follow the project/company.</div>Lulu