Kalman Filter based State Feedback Control of Shell and Tube Heat Exchanger
نویسندگان
چکیده
Temperature of fluid stream through tube is a key variable in shell and tube heat exchanger. However, this variable is not easy to measure straightly. Therefore, a state observer is designed to estimate the tube temperature variable for direct control of shell and tube heat exchanger. A dynamical state space model is used to describe the heat exchanger process. Kalman filter based observer is designed to generate the estimates of states for desirable control system. Kalman filter given the good performance in trimming the noise in the process and congregating to the actual states from improper initial states. A SFC (State Feedback Controller) is designed to control the temperature of fluid stream flowing out through the heat exchanger. A PID (Proportional Integral and Derivative) controller is also designed for temperature control. The simulations of state feedback and PID controller are performed using MATLAB. Obtained transient results are compared and an analysis is conducted.
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