期刊文献+

高效微射流阵列冷却热沉传热特性 被引量:4

A INVESTIGATION ON HEAT TRANSFER IN A MICRO-JET IMPINGEMENT COOLING HEAT SINK
下载PDF
导出
摘要 微射流阵列冷却热沉是利用射流冲击在驻点区能产生很薄的边界层来提高换热效率,本次研究设计的热沉是5层结构的模块式铜微射流阵列冷却热沉,以去离子水为工质对传热特性进行了实验研究。结果表明,采用微射流阵列冷却不仅能通过增加驻点数目来强化换热,而且能有效地降低换热表面的温差。热沉的热阻会随着泵功的增加而降低;随着泵功的不断提高,热阻变化趋于平缓。 Micro-jet impingement cooling heat sink is used to enhance heat transfer owing to the very thin hydrodynamic and thermal boundary layers in the impingement region when a jet impinges on a surface. A copper micro-jet impingement cooling heat sink consisting of five copper sheets is designed in this paper and the jet diameter is 0.150 ram. Experiments are conducted to investigate the character of heat transfer in the heat sink with de-ionized water. The experiment results indicated that adopt micro-jet arraying cooling is not only strengthen heat transfer by increasing the number of stay point, but also decrease heat-exchange surface difference in temperature efficiently. The heat resistance of heat sink will decline with the increase of pump power, then with the continuous increasing of pump power the heat resistance change slowly.
出处 《工程热物理学报》 EI CAS CSCD 北大核心 2007年第3期448-450,共3页 Journal of Engineering Thermophysics
基金 国家自然科学基金(No.50476035) 北京市自然科学基金(No.3052004) 北京市教委科技发展项目(No.KM200410005008)
关键词 热沉 阵列射流 强化传热 heat sink jet array impingement heat transfer enhance
  • 相关文献

参考文献4

二级参考文献16

  • 1Lee D Y, Vafai K. Comparative analysis of jet impingement and microchannel cooling for high heat flux applications. International Journal of Heat and Mass Transfer 1999, 42: 1555-1568
  • 2San J Y, Lai M D. Optimum jet-to-jet spacing of heat transfer for staggered arrays of impinging air jets. International Journal of Heat and Mass Transfer 2001, 44:3997-4007
  • 3Hollworth B R, Dagan L. Array of impinging jets with spent fluid removal through vent holes on the targetsurface,Part1:Average heat transfer, J Engrg Power 1980, 102: 994-999
  • 4Elison B, Webb B. W. Local heat transfer to impinging liquid jets in the initially laminar, transitional, and turbulent regimes.International Journal of Heat and Mass Transfer 1994, 37:1207-1216
  • 5夏国栋.微射流阵列冷却热沉[P].专利号:ZL03267135.0.2003.
  • 6陶文潜.数值传热学(第二版)[M].西安:西安交通大学出版社,2001.362-363.
  • 7Fluent Inc. Fluent 6.0 User's Guide. Volume 10. 1998
  • 8Martin H. Heat and mass transfer between impinging gas jets and solid surfaces. Advances in Heat Transfer 1977, 8: 1-60
  • 9过增元.国际传热研究前沿──微细尺度传热[J].力学进展,2000,30(1):1-6. 被引量:156
  • 10叶超,黄硕琳,苏含秋.基于电子商务的水产批发市场流通模式研究[J].广东农业科学,2015,42(9):169-173. 被引量:9

共引文献8

同被引文献45

引证文献4

二级引证文献28

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部