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加热段冷却段长度分配对脉动热管性能的影响
引用本文:汪双凤,西尾茂文.加热段冷却段长度分配对脉动热管性能的影响[J].华南理工大学学报(自然科学版),2007,35(11):59-62.
作者姓名:汪双凤  西尾茂文
作者单位:1. 华南理工大学,传热强化与过程节能教育部重点实验室,广东,广州,510640
2. Institute of Industrial Science,Univ.of Tokyo,Tokyo 153-8505,Japan
基金项目:华南理工大学引进人才启动基金
摘    要:通过一系列的实验,探讨了脉动热管的加热段长度与冷却段长度分配对其极限热输送能力的影响.实验管为内径0.9mm、外径1.5mm、全长1 560mm的铜管,管内流体工质为R141b.实验揭示了5种不同长度配比的热管在不同充液率条件下的传热特性.结果发现当充液率较低时,如果加热段长度等于冷却段长度,则该热管有最大的极限热输送能力;而当充液率较高时,在加热段长度大于冷却段长度的条件下,该热管的极限热输送能力最强.

关 键 词:脉动热管  加热段  冷却段  长度  充液率  极限热输送能力
文章编号:1000-565X(2007)11-0059-04
收稿时间:2006-12-22
修稿时间:2006年12月22

Effect of Length Ratio of Heating Section to Cooling Section on Properties of Oscillating Heat Pipe
Wang Shuang-feng,Nishio Shigefumi.Effect of Length Ratio of Heating Section to Cooling Section on Properties of Oscillating Heat Pipe[J].Journal of South China University of Technology(Natural Science Edition),2007,35(11):59-62.
Authors:Wang Shuang-feng  Nishio Shigefumi
Abstract:A series of experiments were performed to investigate the effect of length ratio of heating section to cooling section on the ultimate heat-transport capability of oscillating heat pipe(OHP),and to reveal the heat transfer performance of the heat pipes with five different length ratios of different fluid-filling ratios.In the experiments,copper pipes with an inner diameter of 0.9 mm,an outer diameter of 1.5 mm and a length of 1560mm were adopted,and R141b was used as the working fluid.The results show that,when the fluid-filling ratio is relatively low,the ultimate heat-transport capability is maximum at a heating-section length equal to the cooling one,however,when the fluid-filling ratio is relatively high,the OHP whose heating-section length is greater than the cooling one has the maximum heat-transport capability.
Keywords:oscillating heat pipe  heating section  cooling section  length  fluid-filling ratio  ultimate heat-transport capability
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