文献类型：期刊文献

中文题名：换热器用多孔管沸腾传热物理模型比较

英文题名：Comparison of physical models of boiling heat transfer of porous surface tubes for heat exchangers

作者：刘阿龙[1];徐宏[1];刘京雷[1];王学生[1];王宏智[1];张莉[1]

机构：[1]华东理工大学机械学院,上海200237

年份：2008

卷号：36

期号：1

起止页码：17

中文期刊名：化学工程

外文期刊名：Chemical Engineering(China)

收录：CSTPCD;;EI(收录号：20080911125286);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家863计划项目(2006AA05Z206);教育部博士点基金项目(20060251018)

语种：中文

中文关键词：物理模型;沸腾传热;多孔管;换热器

外文关键词：physical model; boiling heat transfer; porous surface tubes; heat exchangers

摘要：多孔管是一种新型高效强化沸腾传热的换热管,对其沸腾传热的物理模型的研究是深刻理解其强化传热机理和今后改进该技术的前提。通过总结国内外相关研究工作,介绍了烧结型和机加工型多孔管沸腾传热的物理模型。重点分析了多孔层特征参数(多孔层厚度、当量半径和孔隙率)对强化传热的影响。同时对各种模型的优缺点进行了分析归纳,探讨了多孔管沸腾传热物理模型研究的发展方向,对今后的发展提出了自己的建议。
Porous surface tubes which are a kind of novel heat transfer tubes for enhancing heat exchanger efficiency are widely employed in the industries. The study of physical models for porous surface tubes is basic for understanding the mechanism of boiling heat transfer and its improvement. Several models about sintered and structured porous surface tubes were briefly reviewed. Effects of the characteristic parameters of porous surface layer （the thickness, equivalent radius and void fraction） on boiling heat transfer were analyzed. The advantage and disadvantage of the physical models of porous surface tubes were analyzed and summarized. Some problems on modeling of porous surface tubes were discussed, and some advices were given for understanding the mechanism on enhanced boiling heat transfer of porous surface tubes.