期刊
COMPUTERS & CHEMICAL ENGINEERING
卷 108, 期 -, 页码 57-73出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compchemeng.2017.08.004
关键词
Eco-industrial park; Heat integration; Mixed-integer non-linear programming; Heat exchanger network; Heat exchanger
资金
- National University of Singapore
- National University of Singapore [R-261-508-001-646/733]
Inter-plant heat integration offers an energy-saving opportunity in eco-industrial parks (EIPs) beyond the traditional intra-plant integration. The economic feasibility of this integration depends critically on the locations of heat exchangers. In this work, we generalize our previous study on centralized HENS (Heat Exchanger Network Synthesis) for EIPs to allow exchangers to be located at either plant or central sites facilitating both intra-plant and inter-plant heat integration in a seamless manner. We propose a mixed integer non-linear programming (MINLP) model that synthesizes a maximum-NPV (Net Present Value) EIP-wide HEN, while accounting for all the capital (e.g. heat exchangers, pumps, and pipelines) and operating (pumping costs, utility savings) cash flows along with the ambient heat gains/losses during transports. The model is tested on five examples from the literature and gives better HENs compared to the previous results. This work highlights and quantifies the impact of heat exchanger locations in an EIP-wide HEN. (C) 2017 Elsevier Ltd. All rights reserved.
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