Identification of an Effective Controller for a Stirred Tank Heater Process
A.S. Rajagopalen
A.S. Rajagopalen, Completed B.E. from Velammal Engineering College, Anna University, Chennai, (Tamil Nadu), India.
Manuscript received on September 21, 2013. | Revised Manuscript received on October 17, 2013. | Manuscript published on October 30, 2013. | PP: 271-279  | Volume-3, Issue-1, October 2013. | Retrieval Number:  A2254103113/2013©BEIESP

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Abstract: Safety and the satisfaction of production specifications are the two primary operational or functional objectives for a chemical plant. Once these two important factors are achieved , the next goal is to make the plant more profitable. Given the fact the conditions which affect the operation of the plant do not remain the same, it is clear that it is mandatory that the operation of the plant is changed in order to maximize the economic objective . This task is undertaken by the controllers of the plant. These controllers are the subject of interest in this paper , where a chemical process like a stirred tank heater is controlled using the PID , the IMC based PID and the adaptive controller. A mathematical model of the stirred tank heater is developed and the different control mechanisms are applied to it. A simulation study is carried out using MATLAB to control the process system using the above mentioned control techniques. With the help of the simulation studies and the time integral performance criteria, we can deduce which controller is the most suitable for a stirred tank heater system.
Keywords: Adaptive Control, IMC based PID Control, PID Control, Stirred Tank Heater.