垂直非结构模型应用于换热网络优化

计算物理 ›› 2020, Vol. 37 ›› Issue (4): 448-458.

垂直非结构模型应用于换热网络优化

李万总, 崔国民, 孙涛, 肖媛

上海理工大学新能源科学与工程研究所, 上海 200093

收稿日期:2019-05-07 修回日期:2019-08-11 出版日期:2020-07-25 发布日期:2020-07-25
通讯作者: 崔国民,E-mail:cgm1226@163.com
作者简介:李万总(1994-),男,硕士研究生,主要从事过程系统优化研究,E-mail:Wanzong-Li@163.com
基金资助:
国家自然科学基金（51176125）资助项目

A Vertical Node-wise Non-structural Superstructure Model for Heat Exchanger Network Optimization

LI Wanzong, CUI Guomin, SUN Tao, XIAO Yuan

Institute of New Energy Science and Technology, University of Shanghai for Science and Technology, Shanghai 200093, China

Received:2019-05-07 Revised:2019-08-11 Online:2020-07-25 Published:2020-07-25

摘要/Abstract

摘要： 节点非结构模型优化换热网络时会出现换热器交叉排列的情况，分析发现在相同传热负荷下交叉结构比垂直结构换热单元总传热面积增大，同时明显降低算法的计算效率.基于此，建立垂直非结构模型.与节点非结构模型相比，垂直非结构模型降低了优化过程中的计算复杂度，并且能够消除交叉结构带来的不利影响，有效提升了优化的效率及求解精度.应用两个算例对基于垂直非结构模型的强制进化随机游走算法（RWCE）进行优化性能分析，取得了优于文献的结果.

关键词: 节点非结构模型, 交叉结构, 换热网络优化, 垂直非结构模型

Abstract: As node-wise non-structural superstructure model is applied to heat exchanger network optimization, heat exchanger crossover may appear. It is found that crossover structure causes an increase of total heat transfer area for heat exchange unit with same heat loads. At the same time, it reduces obviously computational efficiency of the algorithm. A vertical node-wise non-structural superstructure model is established. Compared with node-wise non-structural superstructure, the vertical node-wise non-structural superstructure model reduces computational complexity in the optimization process and eliminates adverse effects of crossover structure, which improves efficiency and accuracy of optimization. Finally, optimization performance of RWCE algorithm based on vertical non-structural superstructure model is analyzed in two examples. The results are superior to those in literature.

Key words: node-wise non-structural superstructure model, crossover structure, heat exchanger network optimization, vertical node-wise non-structural superstructure model

中图分类号:

TK124

李万总, 崔国民, 孙涛, 肖媛. 垂直非结构模型应用于换热网络优化[J]. 计算物理, 2020, 37(4): 448-458.

LI Wanzong, CUI Guomin, SUN Tao, XIAO Yuan. A Vertical Node-wise Non-structural Superstructure Model for Heat Exchanger Network Optimization[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2020, 37(4): 448-458.

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