LAPSE:2023.36387
Published Article
LAPSE:2023.36387
Matrix Non-Structural Model and Its Application in Heat Exchanger Network without Stream Split
July 13, 2023
Heat integration by a heat exchanger network (HEN) is an important topic in chemical process system synthesis. From the perspective of optimization, the simultaneous synthesis of HEN belongs to a mixed-integer and nonlinear programming problem. Both the stage-wise superstructure (SWS) model and the chessboard model are the most widely adopted and belong to structural models, in which a framework is assumed for stream matching, and the global optimal solution outside its feasible domain may be defined by the framework. A node-wise non-structural model (NW-NSM) is proposed to find more universal stream matching options, but it requires a mass of structural variables and extra multiple correction strategies. The aim of this paper is to develop a novel matrix non-structural model (M-NSM) for HEN without stream splits from the perspectives of global optimization methods and superstructure models. In the proposed M-NSM, the heat exchanger position order is quantized by matrix elements at each stream, and a HEN structure is initialized by the random generation of matrix elements. An approach for solving HEN problems based on a matrix real-coded genetic algorithm is employed in this model. The results show that M-NSM provides more flexibility to expand the search region for feasible solutions with higher efficiency than previous models.
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Keywords
Genetic Algorithm, heat exchanger network synthesis, matrix real-coded, non-structural model, Optimization
Subject
Suggested Citation
Li D, Wang J, Sun W, Zhang N. Matrix Non-Structural Model and Its Application in Heat Exchanger Network without Stream Split. (2023). LAPSE:2023.36387
Author Affiliations
Li D: College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
Wang J: College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China [ORCID]
Sun W: College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China [ORCID]
Zhang N: Department of Chemical Engineering, The University of Manchester, Manchester M13 9PL, UK [ORCID]
Wang J: College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China [ORCID]
Sun W: College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China [ORCID]
Zhang N: Department of Chemical Engineering, The University of Manchester, Manchester M13 9PL, UK [ORCID]
Journal Name
Processes
Volume
11
Issue
6
First Page
1843
Year
2023
Publication Date
2023-06-19
ISSN
2227-9717
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Original Submission
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PII: pr11061843, Publication Type: Journal Article
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Published Article
LAPSE:2023.36387
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External Link
https://doi.org/10.3390/pr11061843
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[v1] (Original Submission)
Jul 13, 2023
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Jul 13, 2023
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Record Owner
Calvin Tsay
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