Question

Master Discuss control strategies from Chapters 15 and 16 that may be useful for solving this problem. Explain why a given strat egy might be appropriate but also indicate possible pitfalls. Chapter 23 discusses a diabetes simulation Slave (TC Polymerizer Coolant 16.26 Figure E16.26 shows cascade temperature control of a polymerization reactor, which uses feed heat exchange to adjust the reactor temperature. Using the instrumentation diagram, explain how this cascade control system (both master and slave components) handles the following distur- bances and describe what happens to the reactor temperature. Asume normal temperatures of coolant (70"F), polymeriza tion feed (200°F), exchanger effluent (100'F), and reactor outlet (800"F). (a) Teed temperature becomes too high (b) Food flow rate becomes too high. I Polymerizer feed Feed heat exchanger Figure E16.26 16.27 The cascade maar w a t .