文档介绍：化工进展
·448· CHEMICAL INDUSTRY AND ENGINEERING PROGRESS 2008 年第 27 卷第 3 期
小型叠板式换热器传热与流阻特性实验
潘亮,潘敏强,吴磊,汤勇
(华南理工大学机械工程学院,广东广州 510640)

摘要:研究了一种小型叠板式换热器,它由多块紫铜薄板叠合而成,薄板表面加工有 2 个分布腔和微通道阵列,
微通道采用精密铣削加工。通过实验研究不同流速下微通道深度、分布腔形状以及换热器放置方式对传热、流阻
和综合性能的影响。结果表明,传热体积是决定单位体积传热系数大小的首要因素,在传热体积相等情况下,单
位体积换热面积是决定单位体积传热系数大小的主要因素。在 3 种影响因素中,微通道深度对换热性能影响较大,
微通道深度为 1 mm 的换热器传热性能比深度为 2 mm 的提高了 30%~60%;换热器放置方式对流阻和综合性能
影响较大,换热器入口放置在下端时压力损失比放置在上端时下降约 26%,综合性能则提高了约 30%。
关键词:叠板式换热器;流阻特性;传热特性;单位体积传热面积
中图分类号:TK 172 文献标识码:A 文章编号:1000–6613(2008)03–0448–06

Experimental investigation on heat transfer and flow resistance of
miniature laminate-plate heat exchanger

PAN Liang,PAN Minqiang,WU Lei,TANG Yong
(School of Mechanical Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China)

Abstracts:A miniature laminate-plate heat exchanger was developed. The heat exchanger included
multiple red copper plates,with two distribution chambers and microchannel array on the surface.
Microchannels were machined by precise milling. The influences of microchannel depth,chamber shape
and the orientation of heat exchanger on the heat transfer,flow resistance prehensive performance
of heat exchanger were investigated by experiments. The result indicated that the magnitude of heat
transfer-volume dominated the magnitude of heat transfer coefficien