化工学报2019，Vol.70Issue(12)：4689-4697,9.DOI:10.11949/0438-1157.20190888
基于超结构法的热集成间接式功交换网络综合
Synthesis of heat integrated with indirect power exchange networks based on superstructure model
摘要
Abstract
The comprehensive research and application of heat exchanger networks has been proven to be effective in improving energy efficiency, and the comprehensive research on power exchange networks for recovering higher quality energy is still in its infancy. To solve the problem of stream matching limited by complex driving force constraints in indirect work exchange network synthesis, an extended superstructure considering inter-stage heat integration is established in this paper. Based on the linear fitting operation curves of compressors and turbines, an identification method is proposed for searching feasible stream matches between work sources and sinks. Specific to the highly non-convex and non-linear relationship among pressure, flowrate and temperature, a relaxation strategy is proposed to optimize the inlet temperature of each stage by heat integration, and a mixed-integer nonlinear programming model is established with the objective of minimizing the total annual cost (TAC) model is solved using GAMS and the optimal indirect work exchange network structure is obtained. Finally, an example is given to verify the validity and feasibility of the proposed method.关键词
间接式功交换网络/超结构/热集成/流股匹配/混合整数非线性规划/优化/系统工程/模型Key words
indirect power exchange network/ superstructure/ heat integration/ stream matching/ mixed-integer nonlinear programming/ optimization/ systems engineering/ model分类
化学化工引用本文复制引用
杨蕊,庄钰,邸楠茜,都健..基于超结构法的热集成间接式功交换网络综合[J].化工学报,2019,70(12):4689-4697,9.基金项目
国家自然科学基金项目(21776035) （21776035）
中国博士后科学基金项目(2019TQ0045) （2019TQ0045）
