化工学报2019，Vol.70Issue(2)：431-439,9.DOI:10.11949/j.issn.0438⁃1157.20181145
采用两种中间介质的工业园区厂际余热集成
Inter-plant waste heat integration for industrial park using two medium fluids
摘要
Abstract
Considering the cluster effect of industrial park, it is expectable that could improve energy efficiency of the entire park by recovering the waste heat in each single plant via inter-plant medium fluids which absorb heat in some plants and release heat into other plants. Obviously, the selection of heat exchange medium and the setting of medium heat recovery loop will highly affect the optimal design of the waste heat recovery system and the energy-saving effect. Thus, other than single medium integration strategy, this work uses both hot water and thermal oil as mediums to implement the inter-plant waste heat integration. A heat exchanger network (HEN) superstructure coupling the matches between medium fluids and inner-plant process streams and the allocation of medium streams across plants is proposed. Accordingly, a mixed-integer non-linear programming (MINLP) model is formulated for network optimization aiming at the target of minimum total annual cost. At last, an example involving three plants is studied in three synthesis cases (single medium-single loop, single medium-dual loops, and dual mediums-dual loops). The effectiveness of the proposed method was verified by comparison.关键词
厂际余热集成/中间介质/传热/优化/系统工程Key words
inter-plant waste heat integration/ medium fluid/ heat transfer/ optimization/ system engineering分类
化学化工引用本文复制引用
吴长昊,刘琳琳,张磊,都健..采用两种中间介质的工业园区厂际余热集成[J].化工学报,2019,70(2):431-439,9.基金项目
国家自然科学基金项目(21878034) （21878034）
中央高校基本科研业务费项目(DUT18LAB11) （DUT18LAB11）
