Documentation:CHBE Exam Wiki/Midterm Exam 1 2016W/MT1 Question 2/Solution Q2 B

System (Streams)	Unknowns (list of variables)	Material balances (list)	Extra equations	DOF
Hammer mill (1,2,3,4)	5 (${\dot {m}}_{1},{\dot {m}}_{2},{\dot {m}}_{3},{\dot {m}}_{4},{\dot {w}}_{4,A}$)	3 (W,A,G)	1 Basis (${\dot {m}}_{1}$)	1
Cyclone (4,5,6)	6 (${\dot {m}}_{4},{\dot {m}}_{5},{\dot {m}}_{6},{\dot {w}}_{4,A},{\dot {w}}_{5,A},{\dot {w}}_{5,G}$)	3 (W,A,G)	1 extra equation on cyclone	2
Mixer (3,6,7)	4 (${\dot {m}}_{3},{\dot {m}}_{6},{\dot {m}}_{7},{\dot {w}}_{7,W}$)	2 (W,G)		2
Overall (1,2,5,7)	7 (${\dot {m}}_{1},{\dot {m}}_{2},{\dot {m}}_{5},{\dot {m}}_{7},{\dot {w}}_{5,A},{\dot {w}}_{5,G},,{\dot {w}}_{7,W}$)	3 (W,A,G)	1 Basis (${\dot {m}}_{1}$)	3