Consider the following stirred-tank mixing process. The control scheme accounts for changes in the concentration CA...
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Consider the following stirred-tank mixing process. The control scheme accounts for changes in the concentration CA coming in through stream A by changing the volumetric flow rate 4 of the same stream, such that the concentration coming out the tank c is kept at a defined value. The tank is kept at a constant volume. GA P I/P V Stirred tank Hint: Remember to linearize! i. G = C'(s)/QA' (S) ii. GB = C'(s)/C'(S) AC 45 eg Transfer line Cm C (Figure adapted from SEMD 11.11) a) What are the controlled, disturbance, and manipulated variables? b) From balance equations, derive the transfer functions for the process: AT Consider the following stirred-tank mixing process. The control scheme accounts for changes in the concentration CA coming in through stream A by changing the volumetric flow rate 4 of the same stream, such that the concentration coming out the tank c is kept at a defined value. The tank is kept at a constant volume. GA P I/P V Stirred tank Hint: Remember to linearize! i. G = C'(s)/QA' (S) ii. GB = C'(s)/C'(S) AC 45 eg Transfer line Cm C (Figure adapted from SEMD 11.11) a) What are the controlled, disturbance, and manipulated variables? b) From balance equations, derive the transfer functions for the process: AT
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