新型三维内微肋管水平管内凝结分层流局部换热系数研究  

STUDY OF LOCAL CONDENSING HEAT TRANSFER COEFFICIENTS FOR STRATIFIED FLOW INSIDE HORIZONTAL THREE DIMENSIONAL INNER MICROFIN TUBES

作　　者：杜扬[1] 辛明道[2] 杨小凤[3] 

机构地区：[1]后勤工程学院流体力学与流体机械教研室,重庆400016 [2]重庆大学工程热物理研究所,重庆400044 [3]后勤工程学院水暖教研室,重庆400016

出　　处：《工程热物理学报》1999年第4期482-486,共5页Journal of Engineering Thermophysics

基　　金：国家教委博士点基金

摘　　要：本文研制了一种新型相交换热强化管即三维内微肋管。通过实验得到了三维内微肋管水平管内凝结流型区的类别、分层流区判据以及强化凝结换热的性能．通过分析和逐步回归得到了计算分层流区三维内微肋管水平管内凝结局部换热系数的准则关系式。该式与实验数据在±30％范围内吻合。This paper developed a new type of three dimensional inner microfin tube. The flow patterns, the flow patterns criteria and the heat transfer enhancement performances for the horizontal condensation inside these tubes are gotten by experiment. The calculating correlation of the local condensing heat transfer coefficient for stratified flow inside a two dimensional inner microfin tube have been obtained on the basis of analysis and eXPeriment data. The calculated results with the correlation consistent with the experiment data within ±30%.

关 键 词：三维内微肋管 水平管内凝结 局部 换热系数 

分 类 号：TK124[动力工程及工程热物理—工程热物理]