Optimum Design of Heat Exchangers Networks

Abstract:
In this paper, we have developed a computerized framework
for Heat Exchanger Network Synthesis (HENS) with optimality
conditions of achieving the least operating and capital cost. The
framework of HEN design involves the development three-computer
programs, which applied sequentially to design an optimum HEN. The
first program {Automatic Minimum Utilities [AMU]} developed for
automatic formulation of LP equations, these equations can be solved by
the optimization software [LINDO] to predict minimum hot and cold
utilities. The second program based on Vertical Heat Transfer Method
[VHTM] for predicting minimum overall heat transfer area & defining
the optimum ΔTmin. The third program [Mod.RESHEX] developed for
targeting of heat transfer area and automatic synthesis of HEN. This
program represents the modifications and development of RESHEX
method to overcome the design defects, which appeared on original
RESHEX applications.