Analyzing optimization performance of heat exchanger network synthesis based on nodes' adjustment strategy

被引：0
作者：
Xu Y. [1 ]
Cui G. [1 ]
机构：
[1] Research Institute of New Energy Science and Technology, University of Shanghai for Science and Technology, Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, Shanghai
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2021年 / 40卷 / 07期
关键词：
Heat exchanger network synthesis; Model; Nodes' parameter; Nodes-based non-structural model; Optimization;
D O I：
10.16085/j.issn.1000-6613.2020-1539
中图分类号：
学科分类号：
摘要：
When applying the nodes-based non-structural model (NNM) in optimizing heat exchanger networks, the reasonable adjusting the nodes' parameters (number of stream splitting and the number of groups of stream splitting) can assist the algorithm in obtaining better results within higher efficiency. However, in the setting of NNM model, all hot streams share a set of nodes' parameters and all cold streams share a set of nodes' parameters, thus it cannot customizedly satisfy the requirement of splitting of each stream. To promote the ratio of nodes' utilization in the network, an adjustment strategy was proposed in this paper. This strategy can adjust the number of stream splitting and the number of their splitting groups according to the heat capacities flowrate of streams, which decreases the obstacles resulting from the invalid splitting structures, and obtain the potential superior structures in early optimization period, then improve the optimization quality. 10SP and 15SP were used for proving the validity of strategy in this paper, the results were 340USD/a and 2285USD/a lower than the best ones in literature, respectively. Besides, they are also lower than the ones obtained by the single NNM. The data analysis indicated that this strategy is an effective assistance for improving the performance of the algorithm and contributes to yielding better optimization results. © 2021, Chemical Industry Press Co., Ltd. All right reserved.
引用
收藏
页码：3608 / 3616
页数：8
相关论文
共 31 条
  • [1] YEE T Fu, GROSSMANN I E., Simultaneous optimization models for heat integration (Ⅱ): Heat exchanger network synthesis, Computers & Chemical Engineering, 14, 10, pp. 1165-1184, (1990)
  • [2] CHEN Shang, CUI Guomin, Uniformity factor of temperature difference in heat exchanger networks, Applied Thermal Engineering, 102, pp. 1366-1373, (2016)
  • [3] PAVAO L V, COSTA C, RAVAGNANI M., A new stage-wise superstructure for heat exchanger network synthesis considering substages, sub-splits and cross flows, Applied Thermal Engineering, 143, pp. 719-735, (2018)
  • [4] PAVAO L V, COSTA C, RAVAGNANI M., An enhanced stage-wise superstructure for heat exchanger networks synthesis with new options for heaters and coolers placement, Industrial & Engineering Chemistry Research, 57, 7, pp. 2560-2573, (2018)
  • [5] BAO Zhongkai, CUI Guomin, CAO Chong, Et al., Heat exchanger network optimization based on inner utility placement strategy, Chinese Journal of Computational Physics, 36, 6, pp. 707-718, (2019)
  • [6] PONCE-ORTEGA J M, SERNA-GONZALEZ M, JIMENEZ-GUTIERREZ A., Synthesis of heat exchanger networks with optimal placement of multiple utilities, Industrial Engineering Chemical Research, 49, pp. 2849-2856, (2010)
  • [7] NA Jonggeol, JUNG Jaeheum, PARK Chansaem, Et al., Simultaneous synthesis of a heat exchanger network with multiple utilities using utility substages, Computers and Chemical Engineering, 79, pp. 70-79, (2015)
  • [8] HONG Xiaodong, LIAO Zuwei, SUN Jingyuan, Et al., Trasshipment type heat exchanger network model for intra- and inter-plant heat integration using process streams, Energy, 178, pp. 853-866, (2019)
  • [9] HONG Xiaodong, LIAO Zuwei, JIANG Binbo, Et al., New transshipment type MINLP model for heat exchanger network synthesis, Chemical Engineering Science, 173, pp. 537-559, (2017)
  • [10] HONG Xiaodong, LIAO Zuwei, SUN Jingyuan, Et al., Indirect heat integration across plants: novel representation of intermediate fluid circles, I& EC Research, 58, pp. 7233-7246, (2019)
1234