金属泡沫填充水平圆管内单相对流换热研究  

SINGLE-PHASE CONVECTION IN CIRCULAR PIPE WITH METAL FOAMS

作　　者：陆威[1] 赵长颖[1] 屈治国[1] 

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,陕西西安710049

出　　处：《工程热物理学报》2008年第11期1895-1897,共3页Journal of Engineering Thermophysics

基　　金：国家基础研究973项目(No.2006CB601203);国家自然科学基金资助项目(No.50806057)

摘　　要：本文用R134a的过热蒸汽为工质对金属泡沫填充管的管内单相对流换热特性进行了试验研究,讨论了不同参数的金属泡沫对管内单相对流换热和压力损失的影响.针对金属泡沫填充管的特点(金属泡沫和管壁之间存在接触热阻),本文讨论了不同填充方法和不同成分的金属泡沫对总体换热特性的影响.The experiment on single-phase convection in circular pipe with metal foams was studied using the superheated steam of R134a. The effects of different parameters of metal foams on single-phase convection and pressure loss were discussed. Because of the contacted thermal resistance between metal foams and pipe wall, the effects of diverse fill method and diverse material of metal foams on the total heat transfer performance were also discussed.

关 键 词：金属泡沫 单相对流 压力损失 

分 类 号：TK124[动力工程及工程热物理—工程热物理]