化工进展Issue(3)：599-604,6.DOI:10.3969/j.issn.1000-6613.2014.03.013
综合考虑泵的设备及运行费用的换热网络优化
Analysis of equipment and operating costs of the pump and optimization of heat exchanger network
摘要
Abstract
Pressure losses produced in streams flow through heat exchangers network is an important influencing factor of the heat exchangers network synthesis,and it also contributes to steady-state operation of the heat exchanger network. So the capital & operating costs of pumps should be considered together with the costs of heat exchangers equipment and utilities. Based on the model of non-isothermal mixing of splits stage-wise heat exchangers network superstructure , this paper presented MINLP model for simultaneous synthesis of heat exchangers network,and the heat-transfer coefficients were considered as the function of the velocity of streams instead of as constants. The total annual cost of the heat exchangers network was chosen as the objective function,and the capital &operating costs of pumps were also taken into consideration. The improved GA/SA was used to solve this mathematical model and optimal values of pressure drop and heat-transfer coefficients of streams were obtained. Finally,the validity and reliability of the proposed method were verified with an example,the objective to simplify the heat exchangers network and reduce the total annual cost of the heat exchangers network were achieved.关键词
换热网络/非等温混合/压降/遗传/模拟退火算法/混合整数非线性规划Key words
heat exchanger network/non-isothermal mixing/pressure drop/genetic/simulated annealing algorithm/MINLP分类
化学化工引用本文复制引用
吴敏,肖武,贺高红..综合考虑泵的设备及运行费用的换热网络优化[J].化工进展,2014,(3):599-604,6.基金项目
辽宁省科技计划（2011224005）、国家杰出青年科学基金（21125628）及中国石油科技创新基金（2011D-5006-0401）项目。 （）
