Process Control: Modeling, Design, and Simulation

M5.5. Internal Model Control (Chapter 8)

Here, we assume that the concentration sensor has a measurement delay of 0.5 minutes, and we use the following process transfer function:

Open-Loop Controller Design and Implementation

Consider the open-loop control block diagram shown in Figure M5-5, where r(s) represents a desired setpoint change in the concentration of B (mol/liter), u(s) represents the manipulated input dilution rate (min^-1), and y(s) represents the measured concentration of B (mol/liter).

Figure M5-5. Open-loop control block diagram.

Problem 1. Design an open-loop controller that gives a first-order + time-delay response for a setpoint ...