Critical Heat Flux Enhancement Mechanism on a Surface with Nano-Structures

被引：0
|
作者：
Kim, Dong Eok [1 ]
机构：
[1] Kyungpook Natl Univ, Dept Precis Mech Engn, Daegu, South Korea
来源：
TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS B | 2014年 / 38卷 / 07期
关键词：
Critical Heat Flux; Boiling; Nano-Structures; Vapor Recoil Force; Surface Adhesion Force;
D O I：
10.3795/KSME-B.2014.38.7.619
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The critical heat flux (CHF) on a heat transfer surface with nanostructures is known to be significantly better than that on flat surfaces. Several physical mechanisms have been proposed to explain this phenomenon. However, almost all studies conducted so far have been qualitative, and a generalized theory has not yet been established. In this study, we developed a quantitative mechanism for CHF enhancement on a surface with nanostructures, based on vapor recoil and surface adhesion forces. We focused on the increase in the length of the triple contact line owing to the formation of nanostructures and the adhesion force between them and the liquid.
引用
收藏
页码：619 / 624
页数：6
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