Fuzzy Controller for Propylene Oxide VRU Ex-Exchanger Cooler of Pars Petrochemical

Exchanger system is widely used in oil, gas and petrochemical plants because it can sustain wide range of temperature and pressure. The main purpose of a exchanger system is to transfer from a hot fluid to a cooler fluid or conversely, so temperature control of outlet fluid is of prime importance. To control the temperature of outlet fluid of the exchanger system a conventional PID controller can be used. Due to inherent disadvantages of conventional control techniques, Fuzzy logic controller is employed to control the temperature of outlet fluid of the exchanger system. The designed controller regulates the temperature of the outgoing fluid to a desired set point in the shortest possible time irrespective of load and process disturbances, equipment saturation and nonlinearity.