Chemical Engineering > GATE 2023 > Process Control
Level (β) in a steam boiler is controlled by manipulating the flow rate (πΉ) of the
make-up (fresh) water using a proportional (P) controller. The transfer function
between the output and the manipulated input is
β(π )/πΉ(π )=0.25(1βπ )/ π (2π +1).
The measurement and valve transfer functions are both equal to 1. A process engineer wants to tune the controller so that the closed-loop response gives decaying oscillations under servo mode. Which one of the following is the CORRECT value of the controller gain to be used by the engineer?
β(π )/πΉ(π )=0.25(1βπ )/ π (2π +1).
The measurement and valve transfer functions are both equal to 1. A process engineer wants to tune the controller so that the closed-loop response gives decaying oscillations under servo mode. Which one of the following is the CORRECT value of the controller gain to be used by the engineer?
Correct : d
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