化工学报2019，Vol.70Issue(7)：2584-2593,10.DOI:10.11949/j.issn.0438-1157.20190017
考虑本质安全的换热网络多目标优化
Multi-objective optimization of heat exchanger networks considering inherent safety
摘要
Abstract
Due to the frequent occurrence of major chemical accidents at home and abroad and the increasing demand for energy saving and consumption reduction in the chemical industry, it is of great significance to study multi-objective optimization of heat exchanger networks(HEN) with more secure nature. Evaluation index method was employed to quantify the inherent safety explosiveness, toxicity and inventory for the HEN. Mathematical programming was used to establish a mathematical model of HEN synthesis considering inherent safety. Normalization method was used to obtain the objective function of economy and safety. The case study shows that when explosiveness index is considered, the heat exchange among safer process streams is preferred. When toxicity index is considered, the heat exchangers with toxic process streams are preferred to be eliminated. When inventory index is considered, the number and area of heat exchangers are preferred to be reduced. Then the explosiveness, toxicity, inventory and economy of HEN was optimized simultaneously. And the case study shows that the optimal HEN relies strongly on the selection of economic weight in the proposed objective function.关键词
换热网络/stage-wise/本质安全/多目标优化/Pareto前沿Key words
heat exchanger network/stage-wise/inherent safety/multi-objective optimization/Pareto front分类
化学化工引用本文复制引用
YE Haotian,DONG Yining,XU Shuang,ZOU Xiong,LI Zhenhua,DONG Hongguang..考虑本质安全的换热网络多目标优化[J].化工学报,2019,70(7):2584-2593,10.基金项目
国家自然科学基金项目(21276039) （21276039）
