Question: The control design form for the worked example in this chapter specified that the product flow rate could deviate from its desired value. Consider a modified problem that requires closer control of the product flow to its set point.
(a) Without changing any of the existing controllers in Design I, add one or more controllers to improve the control of the product flow rate. Discuss the performance that you would expect from your new design.
(b) Without changing any of the existing controllers in Design II, add one or more controllers to improve the control of the product flow rate. Discuss the performance that you would expect from your new design.
(c) Develop a new control design that provides very tight control of the product flow rate, while also achieving the other control objectives.