期刊文献+

纳米颗粒对沸腾活化核心密度的影响

THE EFFECT OF NANO-PARTICLES ON NUCLEATION SITE FOR NUCLEATE POOL BOILING
下载PDF
导出
摘要 根据实验所得沸腾曲线,对纳米颗粒悬浮液进行稳态数值模拟,计算了不同过热度下活化核心的密度。计算结果表明:对于不同浓度的纳米颗粒悬浮液,在考虑了其物性变化对沸腾传热的影响外,颗粒的加入对活化核心密度产生的影响是主要的因素,并且影响效果随颗粒浓度的变化不呈单向趋势。 A steady numerical simulation of the effect of nano-particles on nucleation sites in nucleate pool boiling heat transfer was conducted based on the experimental boiling curves. The bubble nucleation densities at a boiling copper surface for different superheat degrees were calculated. The results indicate that the effect of changing the number of nucleation site is a key factor which influences the boiling heat transfer enhancement for nano-particle suspension and this effect varies with particle concentration erratically.
出处 《工程热物理学报》 EI CAS CSCD 北大核心 2008年第12期2101-2103,共3页 Journal of Engineering Thermophysics
基金 国家自然科学基金资助项目(No.50436020)
关键词 纳米颗粒 沸腾换热 活化核心 nano-particle boiling heat transfer nucleation site
  • 相关文献

参考文献2

二级参考文献33

  • 1黄逻 柯家骏.分形粒度分布模型颗粒过程的统一性[A].辛厚文.分形理论及其应用[C].合肥:中国科技大学出版社,1993.294-297.
  • 2分形.张济忠[M].北京:清华大学出版社,1995..
  • 3SHOUKRI M, JUDD R L. Nucleation site activation in saturated boiling[J]. Trans ASME J Heat Transfer, 1975,97( 1 ) :93 - 98.
  • 4JUDD R L, SHOUICRI M. Nuclcate boiling on a oxide coated glass surface,J]. Trans ASME J Heat Transfer, 1975,97(3) :494 - 496.
  • 5SINGH A, MIKIC B B, ROHSENOW W M. Active sites in boiling[J]. Trans ASME J Heat Transfer, 1976,96(3) :401 - 406.
  • 6NAKAYAMA W, DAIKOKU T, KUWAHARA H, et al. Dynamic model of enhanced boiling heat transfer on porous suface[J]. ASME Journal of Heat Transfer, 1980,102:445-456.
  • 7YANG S R, KIM R H. A mathematical model of the pool boiling nucleation site density in terms of the surface characteristics[J]. Int J Heat and Mass Transfer, 1988,31(6) : 1127 - 1135.
  • 8BARTHAU G. Active nucleation site density and pool boiling heat transfer-an experimental study[J]. Int J Heat Mass Transfer, 1992,35(2):271-278.
  • 9WANG C H , DHIR V K. Effect of surface wettability on active nucleation site density during pod boiling of water on a vertical surface[J].Trans ASME J Heat Transfer, 1993, 115(3) :6.59 - 669.
  • 10CHIEN L H. Mechanism and analysis of nucleate boiling on structured surfaces[D]. USA: Pennsyivania State University,1996.

共引文献13

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