带闭式空腔的铜铝复合柱翼型散热器研究及优化.pdfVIP

第26卷第6期 建 筑 热 能 通 风 空 调 V01．26 No．6 2007年 l2月 Building EnergyEnvironment Dec．20o7．62 65 文章编号：1003．0344(2007)06．062．4 带闭式空腔的铜铝复合柱翼型散热器研究及优化 余才锐 郭占军 杨晓亚 (1皖西学院城市建设与环境系；2华北水利水电学院环境与市政工程学院； 3宝鸡石油机械有限责任公司) 摘 要：本文对铜铝复合柱翼型散热器闭式空腔的传热情况进行理论研究，得到闭式空腔铝翼管各表面温度的数 值解析解、闭式空腔内部和单柱散热器的散热量等。然后对常见的此类铜铝复合柱翼型散热器进行实验测试，将 测试所得的闭式空腔和散热器散热量与理论计算结果进行分析，得出理论数值与实验数值相差均在5．77％以内， 闭式空腔内的散热量与其当量直径的函数关系图和闭式空腔内散热量较大时其当量直径的范围；并提出了提高 散热器的整体散热量，优化其闭式空腔的具体措施。 关键词：铜铝复合柱翼型散热器 闭式空腔散热量 理论计算 当量直径 优化 Research and Optimization of a Copper-aluminum Column—wing·type Radiator with Closed Cavity Yu Cairui ，Guo Zhanjun。and Yang Xiaoya (1 Department ofUrban Construction and Environment Science，West Anhui University； 2 Institute of Environm entalMunicipal Engineering．North China University of Water Conservancy and Electric Power； 3 Baoji Oilfield Machinery Co．，Ltd) Abstract：In this article takes theoretical research on the heat~ansfer procedures about the copper‘aluminum column—wing—type radiator with closed cavity，gets the theoretical solution of temperature of different parts of aluminum—wing-pipe，the heat dissipating capacity of closed cavity and single—column in copper-aluminum column—wing-type radiator，etc；and analysis the heat dissipating capacity between the experimental data the theoretical the radiators and closed cavity，obtains the comparison of the experimental data and theoretical data is beyond 5．77％， gets the chart of functional relationship between heat dissipating capacity and equivalent diameter，and the distribution of equivalent diameter under relatively high heat dissipating capacity condition，presents the co