Design and control of resilient heat exchanger network : input temperture and flow rate variation case

Abstract

An effective method to recover the energy from production process plants is heat exchanger network (HEN). However, the energy integration can cause interactions to the other units in process and variation input temperature because environment or product specification that cause the problem to maintain the target temperature and achieve maximum energy recovery. This research, the resilient heat exchanger network design method to dispose of disturbance provide by Wongsri (1990) is modified in case input temperature and flow rate variation. This procedure is presented for design control structure of heat exchanger network using heuristic approach such as match patterns, pinch design, disturbance propagation, bypass setting and selector switch setting to solve 3 examples for heat exchanger network problems. The heat exchanger network with control structures are programmed by simulation in HYSYS for evaluation performance of control structure