计算物理 ›› 2020, Vol. 37 ›› Issue (6): 734-744.DOI: 10.19596/j.cnki.1001-246x.8160

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应用结构摄动策略的有分流换热网络优化

徐玥, 崔国民   

  1. 上海理工大学能源与动力工程学院, 上海市动力工程多相流与传热重点实验室, 上海 200093
  • 收稿日期:2019-10-16 修回日期:2020-01-09 出版日期:2020-11-25 发布日期:2020-11-25
  • 通讯作者: 崔国民,教授,博士生导师,研究方向为过程系统优化,E-mail:cgm@usst.edu.cn
  • 作者简介:徐玥(1991-),女,博士研究生,研究方向为过程系统优化,E-mail:yue323@foxmail.com
  • 基金资助:
    国家自然科学基金(21978171)、上海市科委部分地方院校能力建设计划(16060502600)资助项目

Heat Exchanger Network Optimization Using Structural Perturbation Strategy

XU Yue, CUI Guomin   

  1. Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, School of Energy and Power Eningeering, University of Shanghai for Science and Technology, Shanghai 200093, China
  • Received:2019-10-16 Revised:2020-01-09 Online:2020-11-25 Published:2020-11-25

摘要: 有分流节点非结构模型(NNM-SS)应用于换热网络优化时,因难以生成合适的分流结构而使优化陷入局部极值.根据NNM-SS的优化特点及网络结构中分流次数对费用的影响,提出结构摄动策略,并将其引入强制进化随机游走算法(RWCE-SS).策略的主要思想为:在优化过程中,以一定的概率随机抽取一个无分流结构的换热器,并在该位置上生成一组新的分流结构以增加网络中的分流次数,通过对结构的摄动实现对算法搜索能力的提升.算例验证表明应用该策略改进的算法可获得更好的优化结果.

关键词: 换热网络优化, 有分流节点非结构模型, 摄动策略, 网络结构变异, 优化质量

Abstract: As nodes-based nonstructural model with stream splits (NNM-SS) applied in heat exchanger network synthesis, optimization may be trapped in local optima due to the difficult in generating suitable structures with stream splits. Structural perturbation strategy is proposed and is added into random walk algorithm with compulsive evolution (RWCE-SS). During optimization, a heat exchanger without stream splits is chosen under a certain probability, and then generating a new substream structure on its position to add the number of stream splits in the network. Optimization results obtained by retrofitted algorithm are better than those in literatures.

Key words: heat exchanger network synthesis optimization, nodes-based nonstructural model with stream splits, strategy of perturbation, variation of network structure, quality of result

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