For the flow-pressure process shown in Fig. E, it is desired to control both pressure P 1
Question:
For the flow-pressure process shown in Fig. E, it is desired to control both pressure P1 and flow rate F. The manipulated variables are the stern positions of the control valves, M1 and M2. For simplicity assume that the flow-head relations for the two valves are given by
F = 20M1(P0 ? P1)
F = 30M2(P1 ? P2)
The nominal steady-stale conditions are F = 100 gal/min, P0 20 psi, P1, = 10 psi and P2 = 5 psi. Use the RGA approach to determine the best controller pairing.
Transcribed Image Text:
FC PC PT FT P1 Po
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Taking P 0 and P 2 to be constant Eq ...View the full answer
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Related Book For
Process Dynamics And Control
ISBN: 978-0471000778
2nd Edition
Authors: Dale E. Seborg, Thomas F. Edgar, Duncan A. Mellich
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