流体机械Issue(1)：6-10,74,6.DOI:10.3969/j.issn.1005-0329.2014.01.002
分流板开孔面积对微通道换热器流量分配的影响
Flow Distribution Characteristics of Deflector with Different Opening Area
摘要
Abstract
Deflector with reasonable structure can improve the uniformity of flow distribution in micro channel evaporator .Flow distribution characteristics of three deflectors (A,B,C) with same structure but different opening area (45.6mm2,150.7mm2, 339 mm2 ) were experimentally studied with water as the working fluid .The results show that when the inlet Reynolds number is less than 2500 , the effect of deflector opening area on the flow distribution uniformity of deflector is apparent , the uniformity of deflector B is the best and deflector C is the worst .As the Reynolds number increase , the flow distribution uniformity of deflectors A and C is improved , while deflector B is almost no change .When the Reynolds number is more than 2500 , the opening area of deflector and the Reynolds number have little effect on the flow distribution uniformity , and values of the flow distribution uni-formity of three deflectors are not apparent difference .The flow distribution stability of deflector B is the best .Compared with the condition of without deflector , the flow distribution uniformity of the deflector is improved more than doubled .关键词
微通道蒸发器/分流板/流量分配/开孔面积Key words
micro-channel , evaporator/deflector/flow distribution/opening area分类
机械制造引用本文复制引用
刘巍,朱春玲..分流板开孔面积对微通道换热器流量分配的影响[J].流体机械,2014,(1):6-10,74,6.基金项目
国家自然科学基金资助项目 （）
