期刊
COMPUTERS & CHEMICAL ENGINEERING
卷 96, 期 -, 页码 149-168出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compchemeng.2016.10.002
关键词
Heat integration; Variable temperatures; Disjunctive model; Simultaneous optimization
资金
- Ministry of Economy and Competitiveness from Spain [CTQ2012-37039-C02-02, CTQ2016-77968-C3-2-P]
- Call National Sub-Program for Training [BES-2013-064791]
This paper introduces a new disjunctive formulation for the simultaneous optimization and heat integration of systems with variable inlet and outlet temperatures in process streams as well as the possibility of selecting and using different utilities. The starting point is the original compact formulation of the Pinch Location Method, however, instead of approximating the maximum operator with smooth, but non-convex functions, these operators are modeled by means of a disjunction. The new formulation has shown to have equal or lower relaxation gap than the best alternative reformulation, thus reducing computational time and numerical problems related to non-convex approximations. (C) 2016 Elsevier Ltd. All rights reserved.
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