Page 5 Question 3 Marks 20 Consider the perfectly mixed chemical reactor shown in Figure Q3. An aqueous solution of A enters the reactor at a concentration of Cu temperatute Ti and a flowrate of Fl. The exit stream from the reactor has a concentration of Ca, temperatute and a flowrate of F. The reactor has a liquid volume, V. The reactor is heated by stream throught the reactor jacket at a flowrate Ws and temperature To The jacket temperature is Tc and having a heat transfer coefficient (Wim.c) Designing a feedback control system involves the selection of controlled and manipulated variables, and sensors for measuring the controlled variables. In addition, we have to know the possible disturbances occurring in the process in order to design a control system with good dynamic performance Select the variables to be controlled for the CST in Figure 03 to satisfy the main control objectives. Use a Table format to fill in control objectives, the selected controlled and manipulated variables, sensor principle for the measurements and the possible disturbances occurring in the CSTR. You may add valves and sensors to the figure, if necessary [10 marks For each Identified sets of controiled manipulated variables in propose a feedback control loop and sketch its schematic diagrams 110 marks! FI, TI CA net Reaction A> W.T Steam Slowfow VT TC CC.F.T Figure 3: CSTR Page 5 Question 3 Marks 20 Consider the perfectly mixed chemical reactor shown in Figure Q3. An aqueous solution of A enters the reactor at a concentration of Cu temperatute Ti and a flowrate of Fl. The exit stream from the reactor has a concentration of Ca, temperatute and a flowrate of F. The reactor has a liquid volume, V. The reactor is heated by stream throught the reactor jacket at a flowrate Ws and temperature To The jacket temperature is Tc and having a heat transfer coefficient (Wim.c) Designing a feedback control system involves the selection of controlled and manipulated variables, and sensors for measuring the controlled variables. In addition, we have to know the possible disturbances occurring in the process in order to design a control system with good dynamic performance Select the variables to be controlled for the CST in Figure 03 to satisfy the main control objectives. Use a Table format to fill in control objectives, the selected controlled and manipulated variables, sensor principle for the measurements and the possible disturbances occurring in the CSTR. You may add valves and sensors to the figure, if necessary [10 marks For each Identified sets of controiled manipulated variables in propose a feedback control loop and sketch its schematic diagrams 110 marks! FI, TI CA net Reaction A> W.T Steam Slowfow VT TC CC.F.T Figure 3: CSTR