文献类型：期刊文章

作　　者：宋伟明[1] 孟继安[1] 梁新刚[1] 李志信[1]

机构地区：[1]清华大学航天航空学院,热科学与动力工程教育部重点实验室,北京100084

出　　处：《化工学报》

基　　金：国家重点基础研究计划项目(2007CB206901)~~

年　　份：2008

卷　　号：59

期　　号：10

起止页码：2460-2464

语　　种：中文

收录情况：AJ、BDHX、BDHX2004、CAS、CSCD、CSCD2011_2012、EI(收录号：20084411672481)、IC、JST、RCCSE、SCOPUS、ZGKJHX、核心刊

摘　　要：The uniformity principle of temperature difference field is a phenomenological principle,which has not been theoretically proved.For one-dimensional two-and three-stream heat exchangers,the extremum principle of entransy dissipation was used to optimize the heat transfer process by variational calculus.It was indicated that the temperature difference field between the hot and cold fluids should be completely uniform if the entransy dissipation reached a minimum for a given heat duty,or if the heat duty reached a maximum for a given entransy dissipation.So,the uniformity principle of temperature difference field of heat exchangers was primarily proved.

关 键 词：换热器 温差场均匀性原则  火积耗散极值原理  

分 类 号：TK172]