Synthesis of heat integrated with indirect power exchange networks based on superstructure model

YANG Rui; ZHUANG Yu; DI Nanxi; DU Jian

doi:10.11949/0438-1157.20190888

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Synthesis of heat integrated with indirect power exchange networks based on superstructure model

Process system engineering | 更新时间：2026-07-24

- Synthesis of heat integrated with indirect power exchange networks based on superstructure model
- CIESC Journal Vol. 70, Issue 12, Pages: 4689-4697(2019)
- 作者机构：
  
  1. 大连理工大学化工学院化工系统工程研究所，辽宁大连 116024
  2. 大连理工大学能源与动力学院，辽宁省海水淡化重点实验室，辽宁大连 116024
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190888
  CLC： TQ 021.8
- Received：06 August 2019，
  
  Revised：2019-08-16，
  
  Online First：09 June 2020，
  
  Published：05 December 2019
- 稿件说明：
移动端阅览
杨蕊, 庄钰, 邸楠茜, 都健. 基于超结构法的热集成间接式功交换网络综合[J]. 化工学报, 2019, 70(12): 4689-4697

YANG Rui, ZHUANG Yu, DI Nanxi, DU Jian. Synthesis of heat integrated with indirect power exchange networks based on superstructure model[J]. CIESC Journal, 2019, 70(12): 4689-4697
杨蕊, 庄钰, 邸楠茜, 都健. 基于超结构法的热集成间接式功交换网络综合[J]. 化工学报, 2019, 70(12): 4689-4697 DOI： 10.11949/0438-1157.20190888.

YANG Rui, ZHUANG Yu, DI Nanxi, DU Jian. Synthesis of heat integrated with indirect power exchange networks based on superstructure model[J]. CIESC Journal, 2019, 70(12): 4689-4697 DOI： 10.11949/0438-1157.20190888.

摘要

换热网络综合的研究和应用对于提高能源利用率已被证明是有效的，而用于回收更高品质能量的功交换网络综合的研究仍处于起步阶段。针对间接式功交换网络综合中复杂推动力约束对流股匹配的制约问题，构建了一种考虑级间热集成的拓展超结构，基于线性拟合压缩机和涡轮机的操作曲线，提出了功源与功阱间流股匹配的识别方法；针对压力、流量与温度的高度非凸非线性关系，提出了采用热集成优化每一级入口温度的松弛策略，建立了以年度总费用最小为目标的混合整数非线性规划模型，通过GAMS求解得到最优的间接式功交换网络结构。最后通过一个算例分析，验证所提方法的有效性和可行性。

Abstract

The comprehensive research and application of heat exchanger networks has been proven to be effective in improving energy efficiency

and the comprehensive research on power exchange networks for recovering higher quality energy is still in its infancy. To solve the problem of stream matching limited by complex driving force constraints in indirect work exchange network synthesis

an extended superstructure considering inter-stage heat integration is established in this paper. Based on the linear fitting operation curves of compressors and turbines

an identification method is proposed for searching feasible stream matches between work sources and sinks. Specific to the highly non-convex and non-linear relationship among pressure

flowrate and temperature

a relaxation strategy is proposed to optimize the inlet temperature of each stage by heat integration

and a mixed-integer nonlinear programming model is established with the objective of minimizing the total annual cost (TAC) model is solved using GAMS and the optimal indirect work exchange network structure is obtained. Finally

an example is given to verify the validity and feasibility of the proposed method.

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Keywords

references

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