摘要
热管因其传热性能高、热流密度大、结构紧凑等优势,在电子设备冷却等领域应用广泛。某些混合溶液在一定浓度和温度范围内表面张力随温度升高而增大,用作热管工质时可大幅度提升热管的传热性能。本文总结了引起逆Marangoni效应的混合流体在不同热管中的应用及其对热管传热性能的影响。目前的研究表明,具有逆Marangoni效应的自润湿流体作为热管工质时,最高临界热流密度与水相比可提高2.5倍。
Heat pipes are widely used in the field of the electronic equipment cooling due to their characters of excellent heat and mass transfer performance,huge heat flux and compact structure.The surface tension of some solutions increases as the temperature gets rise within a certain concentration and temperature range.The heat and mass transfer performance of the heat pipes can be improved significantly when those solutions are used as the working fluid of heat pipes.This paper reviewed the applications of the mixed fluids and nanoparticles that caused the inverse Marangoni effect and their enhancement effect on the heat performance of heat pipes.The results show that the maximum critical heat flux density of the self-wetting fluid with inverse Marangoni effect can be increased by 2.5 times compared with water when used as a heat pipe working medium.
作者
田亚玲
张海南
徐洪波
邵双全
田长青
Tian Yaling;Zhang Hainan;Xu Hongbo;Shao Shuangquan;Tian Changqing(Institute of Physical and Chemical Technology,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;Huazhong University of Science and Technology,Wuhan 430074,China)
出处
《低温与超导》
CAS
北大核心
2020年第8期44-49,61,共7页
Cryogenics and Superconductivity
基金
国家自然科学基金项目(No.51706232)资助。
