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Feyli B, Soltani H, Hajimohammadi R, Fallahi-Samberan M, Eyvazzadeh A. A reliable approach for heat exchanger networks synthesis with stream splitting by coupling genetic algorithm with modified quasi-linear programming method. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2021.117140] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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A Framework for Flexible and Cost-Efficient Retrofit Measures of Heat Exchanger Networks. ENERGIES 2020. [DOI: 10.3390/en13061472] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Retrofitting of industrial heat recovery systems can contribute significantly to meeting energy efficiency targets for industrial plants. One issue to consider when screening retrofit design proposals is that industrial heat recovery systems must be able to handle variations, e.g., in inlet temperatures or heat capacity flow rates, in such a way that operational targets are reached. Consequently, there is a need for systematic retrofitting methodologies that are applicable to multi-period heat exchanger networks (HENs). In this study, a framework was developed to achieve flexible and cost-efficient retrofit measures of (industrial) HENs. The main idea is to split the retrofitting processes into several sub-steps. This splitting allows well-proven (single period) retrofit methodologies to be used to generate different design proposals, which are collected in a superstructure. By means of structural feasibility assessment, structurally infeasible design proposals can be discarded from further analysis, yielding a reduced superstructure. Additionally, critical point analysis is applied to identify those operating points within the uncertainty span that determine necessary overdesign of heat exchangers. In the final step, the most cost-efficient design proposal within the reduced superstructure is identified. The proposed framework was applied to a HEN retrofit case study to illustrate the proposed framework.
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Wu H, Yan F, Li W, Zhang J. Simultaneous Heat Exchanger Network Synthesis Involving Nonisothermal Mixing Streams with Temperature-Dependent Heat Capacity. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b01592] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hao Wu
- Key Laboratory for Green Chemical Technology MOE and Key Laboratory
of Systems Bioengineering MOE, ‡School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Fangyou Yan
- Key Laboratory for Green Chemical Technology MOE and Key Laboratory
of Systems Bioengineering MOE, ‡School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Wei Li
- Key Laboratory for Green Chemical Technology MOE and Key Laboratory
of Systems Bioengineering MOE, ‡School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Jinli Zhang
- Key Laboratory for Green Chemical Technology MOE and Key Laboratory
of Systems Bioengineering MOE, ‡School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
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