化工学报2016，Vol.67Issue(12)：5176-5182,7.DOI:10.11949/j.issn.0438-1157.20161296
基于持续节能的多周期换热网络优化设计
Design optimization of multi-period heat exchanger networks based on continuous energy saving
摘要
Abstract
In petrochemical industry, operating conditions of heat exchanger networks (HEN) are always changed, which particularly fouling-induced heat resistance keeps increasing over time. To overcome variation of operating conditions, several optimizing methods on design and retrofit of multi-period HENs are available with no consideration of fouling effect on HEN. The inevitable HEN fouling and increase of heat resistance will drive operation deviate from optimum value and make it difficult to sustain energy saving. A synthesis design method of multi-period HENs based on continuous energy saving was proposed which optimal synthesis was achieved by targeting total accumulative cost and considering fouling influence. First, case study to analyze fouling influence on multi-period HENs showed that optimal value of multi-period HEN in each period had been changed due to fouling. Then, a model on optimizing multi-period HEN was established by considering continuous energy saving and objective function of total accumulative cost. Finally, case study indicated effectiveness of the design optimization method.关键词
过程系统/计算机模拟/换热网络/结垢/多周期/优化/持续节能Key words
process system/computer simulation/heat exchanger networks/fouling/multi-period/optimization/continuous energy saving分类
化学化工引用本文复制引用
朱真,孙琳,罗雄麟..基于持续节能的多周期换热网络优化设计[J].化工学报,2016,67(12):5176-5182,7.基金项目
国家自然科学基金项目（21676295）；中国石油大学（北京）科研基金资助项目（2462015YQ0511）。@@@@supported by the National Natural Science Foundation of China (21676295) and the Science Foundation of China University of Petroleum, Beijing (2462015YQ0511) （21676295）
