Mass exchange network synthesis using genetic algorithms

被引:49
作者
Garrard, A [1 ]
Fraga, ES [1 ]
机构
[1] Univ Edinburgh, Dept Chem Engn, Edinburgh EH9 3JL, Midlothian, Scotland
基金
英国工程与自然科学研究理事会;
关键词
mass exchange; waste minimization; synthesis; genetic algorithms; optimization;
D O I
10.1016/S0098-1354(98)00252-X
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Mass Exchange Networks (MENs) are used in the chemical industry to reduce the waste generated by a plant to an acceptable level at the cheapest cost. Finding the optimal network, however, is often difficult due to the non-convexity of the mathematical representation of the problem. This paper describes a novel approach for the synthesis of MENs and MENs with regeneration using Genetic Algorithms (GA), a stochastic optimisation technique based on the concepts of natural evolution. We present an encoding for a genetic algorithm which describes a rich search space, considering both stream splitting and in-series exchangers. For a certain class of problems, all encoded solutions are feasible and require a simple evaluation to yield a cost, resulting in an efficient genetic algorithm. For other problems, the number of infeasible solutions is small, having little effect on the convergence of the genetic algorithm. In comparison with other methods, the GA presented herein is able to find better networks than have been reported elsewhere. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1837 / 1850
页数:14
相关论文
共 24 条
[1]   A GENETIC ALGORITHMIC FRAMEWORK FOR PROCESS DESIGN AND OPTIMIZATION [J].
ANDROULAKIS, IP ;
VENKATASUBRAMANIAN, V .
COMPUTERS & CHEMICAL ENGINEERING, 1991, 15 (04) :217-228
[2]   MASS HEAT-EXCHANGE NETWORK REPRESENTATION OF DISTILLATION NETWORKS [J].
BAGAJEWICZ, MJ ;
MANOUSIOUTHAKIS, V .
AICHE JOURNAL, 1992, 38 (11) :1769-1800
[3]  
BEASLEY D, 1993, U COMPUT, V15, P58
[4]  
BIKOS SC, 1993, PROCESS TECHNOL
[5]  
DEJONG KA, 1989, PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON GENETIC ALGORITHMS, P124
[6]  
Douglas J. M., 1988, Conceptual design of chemical processes
[7]   PROCESS SYNTHESIS FOR WASTE MINIMIZATION [J].
DOUGLAS, JM .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1992, 31 (01) :238-243
[8]   SIMULTANEOUS SYNTHESIS OF MASS-EXCHANGE AND REGENERATION NETWORKS [J].
EL-HALWAGI, MM ;
MANOUSIOUTHAKIS, V .
AICHE JOURNAL, 1990, 36 (08) :1209-1219
[9]   SYNTHESIS OF REACTIVE MASS-EXCHANGE NETWORKS [J].
EL-HALWAGI, MM ;
SRINIVAS, BK .
CHEMICAL ENGINEERING SCIENCE, 1992, 47 (08) :2113-2119
[10]   AUTOMATIC SYNTHESIS OF MASS-EXCHANGE NETWORKS WITH SINGLE-COMPONENT TARGETS [J].
EL-HALWAGI, MM ;
MANOUSIOUTHAKIS, V .
CHEMICAL ENGINEERING SCIENCE, 1990, 45 (09) :2813-2831