Apply Your Knowledge |
18.7 What initial tuning approach would you recommend for the level controller given below to give tight control. |
Level Process |
18.8 When using proportional - only level control, be sure that KpKc < 1.0 to ensure that the closed-loop system is underdamped. |
Feedback Control |
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18.9 In the derivation of the PI level tuning approach, the damping coefficient x =1 was selected because |
Control Objectives |
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The damping coefficient is displayed below as either Greek letter xi or x, depending on the browser that you are using. |
18.10 When tuning levels in series, we ensure that each level loop is overdamped because |
Control Objectives |
18.11 Why does the non-linear PI feedback controller have a high-gain region? |
Feedback Control |
18.12 Steam in a heat exchanger is condensed. The level of water in the exchanger is non-self-regulating. |
Level Process |
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18.13 Select the inventories where the "tight control" objective is appropriate for the level controller. |
Control Objectives |
18.14 Which of the following can be used to measure liquid level. |
Level Process |