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1. What is the effect of the controller gain on the output response? What if you changed this value to say, 15 and 1500; what is the difference between the responses and what might be the explanation for this? Show the scopes (plots) for each scenario for a set point change of 1°C at t = 10. Keep the disturbance constant. 2. Repeat the process above for a disturbance of -1°C at t = 10. Keep the original set point constant. 3. What happens if the measuring element has a long time constant, say 3.3 min rather than 0.33 min? Simulate these events for a set point change of 2°C at t = 10 and a disturbance of -0.5°C at t = 10 separately, then simultaneously. Show the plots and discuss the results (use a controller gain of 150 for this part). 4. Why irrespective of our best efforts, the system still shows offset between the process variable and the set point?

1. What is the effect of the controller gain on the output response? What if you changed this value to say, 15 and 1500; what is the difference between the responses and what might be the explanation for this? Show the scopes (plots) for each scenario for a set point change of 1°C at t = 10. Keep the disturbance constant. 2. Repeat the process above for a disturbance of -1°C at t = 10. Keep the original set point constant. 3. What happens if the measuring element has a long time constant, say 3.3 min rather than 0.33 min? Simulate these events for a set point change of 2°C at t = 10 and a disturbance of -0.5°C at t = 10 separately, then simultaneously. Show the plots and discuss the results (use a controller gain of 150 for this part). 4. Why irrespective of our best efforts, the system still shows offset between the process variable and the set point?

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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1. What is the effect of the controller gain on the output response? What if you changed this value to say, 15 and 1500; what is the difference between the responses and what might be the explanation for this? Show the scopes (plots) for each scenario for a set point change of 1°C at t = 10. Keep the disturbance constant. 2. Repeat the process above for a disturbance of -1°C at t = 10. Keep the original set point constant. 3. What happens if the measuring element has a long time constant, say 3.3 min rather than 0.33 min? Simulate these events for a set point change of 2°C at t = 10 and a disturbance of -0.5°C at t = 10 separately, then simultaneously. Show the plots and discuss the results (use a controller gain of 150 for this part). 4. Why irrespective of our best efforts, the system still shows offset between the process variable and the set point?
Transcribed Image Text:1. What is the effect of the controller gain on the output response? What if you changed this value to say, 15 and 1500; what is the difference between the responses and what might be the explanation for this? Show the scopes (plots) for each scenario for a set point change of 1°C at t = 10. Keep the disturbance constant. 2. Repeat the process above for a disturbance of -1°C at t = 10. Keep the original set point constant. 3. What happens if the measuring element has a long time constant, say 3.3 min rather than 0.33 min? Simulate these events for a set point change of 2°C at t = 10 and a disturbance of -0.5°C at t = 10 separately, then simultaneously. Show the plots and discuss the results (use a controller gain of 150 for this part). 4. Why irrespective of our best efforts, the system still shows offset between the process variable and the set point?
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