Answer to Question #150579 in Electrical Engineering for peunal

Question

QA proportional controller is used to control the temperature in a tank,
which varies from 20 0C to 100 0C. The controller is required to close the valve
on steam supply when temperature rises to 80 0C and open the steam supply
when temperature drops to 20 0C. Set point is 60 0C.
[1]. Calculate proportional band and controller output when temperature in
the tank is 50 0C.
[2]. For the above process, design an electronic controller around a single
op-amp. Controller output is 0-5 V; voltage varies linearly from 1 V to 5 V
when temperature varies from 20 0C to 100 0C. Zero corresponds to 50 %
controller output.
[3]. Draw and label the closed loop with electronic controller.

Answer 1

1)- proportional band and controller output- 60 degree

2)-  Zero corresponds to 50 %

controller output. is 59

3)- the closed loop will be control electronic controller.