摘要
双孔径分布毛细结构因在高热流密度下的优异传热性能而被越来越多地应用在环路热管蒸发器中。本文总结了环路热管双孔径分布毛细结构的主要类型、形貌特征、制备工艺及内部传热过程;通过分析孔径分布、芯体厚度、蒸气层厚度及气液界面的薄膜蒸发,探讨了双孔径分布毛细结构的传热机理,并与单孔径毛细结构的传热性能进行了对比;最后综述了双孔径分布毛细结构主要热物性参数的计算模型及试验关联式。
Bi-porous wicks are very attractive for high heat flux applications such as loop heat pipe due to the high heat transfer performance. This paper summarized the main types, features, manufacture process and heat transfer of bi-porous wicks. The heat transfer mechanism was discussed and compared with mono-porous wick via analysis of the factors such as pore distribution, wick thickness, vapor blanket thickness and thin film evaporation at the liq- uid-vapor interface. Finally, the computation model and experimental relations for the main thermophysical properties of bi-porous wicks were reviewed.
出处
《粉末冶金工业》
CAS
北大核心
2014年第3期48-55,共8页
Powder Metallurgy Industry
基金
国家自然科学基金青年基金(51206189)
中国石油大学(华东)自主创新科研计划项目(27R1204024A)
关键词
环路热管
双孔径分布
毛细芯
热物性
loop heat pipe
bi-porous/bi-dispersed
wick
thermophysical property
