Abstract
The most crucial section in chemical processes based industries is Continuous stirred tank reactor (CSTR). CSTR is the example of non-linear dynamical systems. In order to obtain the desired product, it is necessary to have the proper analysis of CSTR in chemical industries. Temperature is the important parameter which is required to be controlled in exothermic CSTRs. The reason for this is the huge temperature variations. These variations are the cause of side reactions which in turn can result in wrong final product. It is desirable that CSTR operates on the desired temperature. Hence, controlling the temperature of CSTR is of prime concern for any process engineer. This paper presents two controllers (viz., Proportional–Integral–Derivative (PID), Fuzzy Logic Controller (FLC)) designed to control the temperature of the CSTR and a comparative analysis of both the controllers have been presented. The behaviour of CSTR has been tested in presence of step disturbance and then the control methodologies have been developed to control the temperature.
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