摘要：Heat recovery loop (HRL) is an indirect approach for waste Heat Integration between plants. The mathematical model for HRL design is a complex and nonlinear problem, which results in a non-convex Mixed Integer Nonlinear Programming (MINLP) model. Solving the problem without any strategy is difficult since computational results can easily be trapped in the local optimum solutions. This is mainly due to the reasons that operation cost, capital cost of heat exchanger networks, piping and pumping cost are considered simultaneously. To overcome this limitation, an efficient optimization algorithm is proposed for the complex problem. With application of convex reformulation and piecewise wise relaxation, the problem can be reformulated as a convex MINLP model, in which the objective function is convex and all constraints are linear. The computational efforts are reduced largely and better solutions can be obtained for the HRL design. As this work concentrates on low grade heat recovery, hot water is selected as the intermediate fluid to achieve waste Heat Integration between plants. An industrial case is demonstrated to illustrate the effectiveness of the proposed algorithm. (C) 2016 Elsevier Ltd. All rights reserved.

关键字：Heat Integration Heat recovery loop MINLP model Optimization algorithm

ISSN号：1359-4311

卷、期、页：卷: 105 页: 799-806 特刊: SI

发表日期：2016-07-25

期刊分区（SCI为中科院分区）：二区

收录情况：SCIE（科学引文索引网络版）,ESI（基本科学指标数据库）,EI（工程索引）

发表期刊名称：APPLIED THERMAL ENGINEERING

参与作者：冯霄

通讯作者：常承林,陈晓露

第一作者：王彧斐

论文类型：会议论文

论文概要：常承林,陈晓露,王彧斐,冯霄，An efficient optimization algorithm for waste Heat Integration using a heat recovery loop between two plants，APPLIED THERMAL ENGINEERING，2016，卷: 105 页: 799-806 特刊: SI

论文题目：An efficient optimization algorithm for waste Heat Integration using a heat recovery loop between two plants