Experimental research on wetting behavior of refrigerant-oil mixture on micro/nanostructured surface

被引：6
|
作者：
Peng, Hao [1 ]
Lin, Lingnan [2 ]
Ding, Guoliang [2 ]
机构：
[1] Beijing Univ Civil Engn & Architecture, Dept Energy & Power Engn, Beijing 100044, Peoples R China
[2] Shanghai Jiao Tong Univ, Inst Refrigerat & Cryogen, Shanghai 200240, Peoples R China
来源：
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2016年 / 62卷
基金：
中国国家自然科学基金;
关键词：
Micro/nanostructure; Oil; Refrigerant; Self-assembled monolayer; Wetting; BOILING HEAT-TRANSFER; HIERARCHICAL STRUCTURE; HYDROPHOBIC SURFACES; NANO; COPPER; MICRO; FABRICATION; WETTABILITY; EVAPORATION; CONDENSATION;
D O I：
10.1016/j.ijrefrig.2015.10.033
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The wettability of micro/nanostructured surface is a key property for its application in enhancing the boiling heat transfer of refrigerant-oil mixture. The objective of this research is to experimentally investigate the wetting behavior of refrigerant-oil mixture on micro/nanostructured surface. Three types of surfaces including plain copper surface (PS), micro/nanostructured surface (MNS) and micro/nanostructured surface with fluorinated self-assembled monolayer (MNFS) were fabricated; and the wetting behavior of pure R141b as well as R141b-NM56 mixtures with different oil concentrations on three types of surfaces was measured. The experimental results show that the protuberant liquid film is formed during the wetting of refrigerant-oil mixture on MNS or PS, but does not exist on MNFS; the presence of F-SAM or micro/nanostructure modified by F-SAM reduces the surface wettability, while the presence of micro/nanostructure increases the surface wettability; oil increases the wettability of refrigerant on MNS, while it reduces the wettability of refrigerant on MNFS. (C) 2016 Elsevier Ltd and International Institute of Refrigeration. All rights reserved.
引用
收藏
页码：207 / 221
页数：15
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