# lec21 - Lecture 21 Tuesday CSTR With Heat Effects Multiple...

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Lecture 21 Tuesday 3/25/08 CSTR With Heat Effects Multiple Steady States . Ignition and Extiction Temperatures

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CSTR with Heat Effects Energy Balance for CSTRs Equation (8-9) (page 476)
Energy Balance for CSTRs Equation (8-9) (page 476) Using We obtain after some manipulation (page 593)

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(page 593) Collecting terms w ith Ý Q = UAT a - T ( 29 and high coolant flow rates, Ý W S = 0 (except in Problem P8-5 B ) and F i 0 = F A 0 Θ i dT dt = H Rx ( 29 r A V ( 29 - F A 0 ∑Θ i C P i C P 0 6 7 4 8 4 T - T 0 ( 29 + UA T - T a ( 29 ( 29 N i C P i = F A 0 N i C P i H R r A V F A 0 G T ( 29 6 7 4 8 4 - C P 0 T - T 0 + UA F A 0 C P S κ 1 2 4 3 4 T - T a ( 29 R T ( 29 6 7 4 4 4 4 4 8 4 4 4 4 4 dT dt = F A 0 N i C P i G T ( 29 - R T ( 29 [ ] G T ( 29 = r A V ( 29 H Rx [ ] RT ( 29 = C P S 1 + ( 29 T - T 0 + T a ( 29 [ ]
At Steady State dT dt = dN A = 0 - r A V = F A 0 X GT ( 29 - RT ( 29 = 0 -∆ H Rx ( 29 F A 0 X - F A 0 ∑Θ i C P i T - T 0 ( 29 - UAT - T a ( 29 = 0

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lec21 - Lecture 21 Tuesday CSTR With Heat Effects Multiple...

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