Supply and target based Superstructure synthesis of heat and Mass Exchanger Networks. Modelling, Simulation and Applied Optimization (ICMSAO).

Abstract

This paper present new methods for superstructure heat exchanger network synthesis (HENS ) and mass exchange networks(MENS). The techniques developed in this study explore the use namely supply temperatures/compositions an d target temperatures/compositions in HENS and MENS to define the interval of superstructures. Such superstructures are modeled as mixed integer non-linear programmes (MINLP) with the objective of simultaneous minimization of total annual cost (TAC) of each network. The two superstructure presented in this paper are based on the supply based superstructure (SBS) developed previously [1]. The first uses the supply temperatures/compositions of hot/rich stream s and the target temperatures/compositions of cold/lean streams , denoted supply and target based superstructure (S&TBS), while the second uses the target temperatures/compositions of hot/rich streams and the supply temperatures/compositions of cold/lean streams denoted target and supply based superstructure(T&SBS), Three HEN examples and three MEN examples are presented and the results obtained compare well with those in the literature.