重庆大学学报2016，Vol.39Issue(4)：24-31,8.DOI:10.11835/j.issn.1000-582X.2016.04.004
直接接触式换热器传热性能优化
Heat ttansfet petfotmance optimization of ditect-contact heat exchangets
摘要
Abstract
Absttact:A performance optimization model of direct-contact heat exchangers was established,in which the volumetric heat transfer coefficient was used as objective function,the refrigerant initial flow rate U0 , the nozzle diameter di ,and the heat transfer oil height Z were used as decision variables.The linear model of bubble swarm and heat transfer performance was used as constraint condition in the optimization model, and the influence of the constraint condition on optimization process and results were mainly analyzed.The genetic algorithm was used to analyze the original model and supplementary model.And the results show that the optimized volumetric heat transfer coefficient of the original model is promoted by 6 .7 times compared with that of the original design.The number of iterations of the optimal value in the supplement model is reduced by around 5 5%,and the optimal value increases by 0 .3% compared with those of the original model.Therefore,this constraint condition improves not only the iteration rate,but also the probability of seeking the global optimum,which makes the optimal solution more approximate to the global optimal value.关键词
直接接触换热器/性能优化/约束条件/目标函数Key words
direct-contact heat exchanger/performance optimization/constraint condition/obj ective function分类
能源科技引用本文复制引用
杨波,黄峻伟,王辉涛,王仕博,徐建新..直接接触式换热器传热性能优化[J].重庆大学学报,2016,39(4):24-31,8.基金项目
国家自然科学青年基金资助项目（51406071）；云南省自然科学基金资助项目（2013FB020）。Supported by the National Natural Science Foundation of China（51406071）and the Natural Science Foundation of Yunnan Province（2013FB020）． （）
