A schematic diagram for a pH neutralization process is shown in Fig. E. The transfer function matrix
Question:
A schematic diagram for a pH neutralization process is shown in Fig. E. The transfer function matrix and relative gain array are also shown.
(a) Suppose that a multiloop control system consisting of four PID controllers is to be designed. Recommend a pairing of controlled and manipulated variables. Briefly justify your recommendation based on steady-state, dynamic, and physical considerations.
(b) Suppose that only pH2 and h2 are to be controlled using Q4 and Q6 as the manipulated variables (Q1 and Q3 are held constant).
(i) What is the RGA for this 2 ? 2 control problem?
(ii) What pairing of controlled and manipulated variables do you recommend? (Justify your answer.)
Step by Step Answer:
Process Dynamics And Control
ISBN: 978-0471000778
2nd Edition
Authors: Dale E. Seborg, Thomas F. Edgar, Duncan A. Mellich