Effect of sampling time on PID controller design for a heat exchanger system

Temperature control is desirable in heat exchanger system due to fact that chemical processing plants requires certain level of temperature for a given for a particular processing. This research aims at the development of a PID controller for outlet temperature control of a heat exchanger system. Th...

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Bibliographic Details
Main Authors: Isa, Abdulbasid Ismail, Hamza, Mukhtar F.
Format: Conference Proceeding
Language:English
Subjects:
Algorithms
Control systems
Disturbances
Fluids
Heat exchanger
Heat exchangers
Heating
Mathematical model
Matlab
MIGO-PID
Sampling
Sampling time
Temperature control
Temperature measurement
Temperature sensors
Transfer functions
Tuning
Valves
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Summary:Temperature control is desirable in heat exchanger system due to fact that chemical processing plants requires certain level of temperature for a given for a particular processing. This research aims at the development of a PID controller for outlet temperature control of a heat exchanger system. The proposed controller was developed based on MIGO (M-Constrained integral gain optimisation) tuning algorithm and simulated using MATLAB/Simulink. The system model is represented using discrete time domain approach at specific interval of sampling time, the results obtained showed that an increase in sampling time gives a resultant increase in settling time for all operating conditions considered. Similarly the values of rise time increases with the increase of sampling time at no disturbance condition but decreases during the application of disturbance. Also the occurrence of overshoot and undershoot decreases as the sampling time increases at no disturbance condition except for a sampling time of 1.0 second, but for the disturbed condition, the overshoot and undershoot are not experienced as the sampling time increase.
ISSN:2326-9413
2326-9448
DOI:10.1109/ICASTECH.2014.7068134