Essay Examples on Metropolitan State University of Denver

Analysis of the behavior of the process in open loop in Simulation

Control Station the study of the heat exchanger that includes Objective According to the requirements of the work A Analysis of the behavior of the process in open loop in simulation B Obtaining the process model at two different operation points C Tuning of P PI and PID controllers D Comparison of closed loop behavior with different settings of the controller parameters considering variations of type jump in the reference jump type variations in the disturbance 1 First we learned that the heat exchanger we are studying is actually a process simulation of a commercial software Heat exchanger as shown below click to enlarge Manual mode as open loop is called Secondly its behavior is a hot liquid cooler of casing and countercurrent tube The measured process variable is the temperature of the hot liquid that comes out of the tube side exchanger To adjust this heat output temperature the controller moves a valve to manipulate the flow of coolant on the side of the housing As the warm flow rate increases the mixed flow temperature decreases and vice versa The process variable measured PV is the temperature of the hot liquid leaving the exchanger The output signal from the controller CO moves the valve to manipulate the flow of cooling liquid on the side of the housing to keep the PV at the reference point SP Heat the liquid flow as a process disturbance D As shown PV 140C CO 39 D 10 L min 



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