Step-wise synthesis of work exchange networks involving heat integration based on the transshipment model

Yu Zhuang; Linlin Liu; Qilei Liu; Jian Du

doi:10.1016/j.cjche.2017.03.021

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Step-wise synthesis of work exchange networks involving heat integration based on the transshipment model

Article | Updated：2026-01-06

- Step-wise synthesis of work exchange networks involving heat integration based on the transshipment model
- Step-wise synthesis of work exchange networks involving heat integration based on the transshipment model
- 中国化学工程学报（英文版） 2017年25卷第8期页码：1052-1060
- Affiliations：
  
  1. Institute of Chemical Process Systems Engineering, School of Chemical Engineering, Dalian University of Technology,Dalian,China,116012
  2. Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology,Dalian,China,116024
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2017.03.021
  中图分类号：
- 纸质出版：2017
- Accepted：
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Yu Zhuang, Linlin Liu, Qilei Liu, 等. Step-wise synthesis of work exchange networks involving heat integration based on the transshipment model[J]. 中国化学工程学报（英文版）, 2017,25(8):1052-1060.

Yu Zhuang, Linlin Liu, Qilei Liu, Jian Du. Step-wise synthesis of work exchange networks involving heat integration based on the transshipment model[J]. , 2017, 25(8): 1052-1060.
Yu Zhuang, Linlin Liu, Qilei Liu, 等. Step-wise synthesis of work exchange networks involving heat integration based on the transshipment model[J]. 中国化学工程学报（英文版）, 2017,25(8):1052-1060. DOI： 10.1016/j.cjche.2017.03.021.

Yu Zhuang, Linlin Liu, Qilei Liu, Jian Du. Step-wise synthesis of work exchange networks involving heat integration based on the transshipment model[J]. , 2017, 25(8): 1052-1060. DOI： 10.1016/j.cjche.2017.03.021.

摘要

Abstract

Due to the deterioration of serious energy dilemma

energy-conservation and emission–reduction have been the strategic target in the past decades

thus people have identified the vital importance of higher energy efficiency and the influence of lower carbon development. Since work exchange network is a significant part of energy recovery system

its optima design will have dramatically significant effect on energy consumption reduction in chemical process system. With an extension of the developed transshipment model in isothermal process

a novel step-wise methodology for synthesis of direct work exchange network (WEN) in adiabatic process involving heat integration is first proposed in this paper

where a nonlinear programming (NLP) model is formulated by regarding the minimum utility consumption as objective function and optimizing the initial WEN in accordance with the presented matching rules to get the optimized WEN configuration at first. Furthermore

we focus on the work exchange network synthesis with heat integration to attain the minimal total annual cost (TAC) with the introduction of heat-exchange equipment that is achieved by the following strategies in sequence: introducing heat-exchange equipment directly

adjusting the work quantity of the adjacent utility compressors or expanders

and approximating upper/lower pressure limits consequently to obtain considerable cost savings of expanders or compressors and work utility. Finally

a case taken from the literature is studied to illustrate the feasibility and effectiveness of the proposed method.

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