化工进展Issue(4)：1171-1177,7.DOI:10.16085/j.issn.1000-6613.2015.04.047
基于遗传/模拟退火算法考虑压降的换热网络优化改造
Retrofit of heat exchanging network considering pressure drop based on GA/SA
摘要
Abstract
This paper simulated optimization method for retrofitting existing heat exchanging networks(HENs). Based on the non-isothermal mixing of splits stage-wise heat exchangers network superstructure,a MINLP model to retrofit heat exchangers network was established. This model simultaneously considered the tradeoffs among the utility costs,the additional heat transfer areas costs, the new heat exchangers costs and the added powers costs. A stage-wise superstructure model for design of new HENs was improved by adding constraining conditions and binary variables. By analyzing an existing heat exchanger network,the GA/SA (genetic algorithm/simulated annealing algorithm) algorithm was applied to retrofit of the HEN with full utilization of the existing heat exchangers and structure. The results showed that the method presented in this paper reduced utility loads much more and the investment costs,resulting a faster investment pay-back period to 0.53 years. Therefore,this method provided a feasible solution to the heat exchanging net work renovation.关键词
换热网络/改造/遗传/模拟退火算法/压降/超结构Key words
heat exchanger network/retrofit/GA/SA/pressure drop/superstructure分类
化学化工引用本文复制引用
吴敏,肖武,贺高红..基于遗传/模拟退火算法考虑压降的换热网络优化改造[J].化工进展,2015,(4):1171-1177,7.基金项目
国家自然科学青年基金（21206014）、国家杰出青年科学基金（21125628）及中央高校基本科研业务费专项资金（DUT14LAB14）项目。 （）
