Supersonically sprayed reduced graphene oxide film to enhance critical heat flux in pool boiling

被引：58

作者：

An, Seongpil ^{[1
]}

Kim, Do-Yeon ^{[1
]}

Lee, Jong-Gun ^{[1
]}

Jo, Hong Seok ^{[1
]}

Kim, Min-woo ^{[1
]}

Al-Deyab, Salem S. ^{[2
]}

Choi, Jeehoon ^{[3
]}

Yoon, Sam S. ^{[1
]}

机构：

[1] Korea Univ, Sch Mech Engn, Seoul 02841, South Korea

[2] King Saud Univ, Dept Chem, Petrochem Res Chair, Riyadh 11451, Saudi Arabia

[3] LC Elect Inc, Seoul, South Korea

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2016年 / 98卷

基金：

新加坡国家研究基金会;

关键词：

Supersonic cold spraying; Pool boiling; Critical heat flux; Graphene oxide; SURFACES; TRANSPARENT; PERFORMANCE; SINGLE;

D O I：

10.1016/j.ijheatmasstransfer.2016.03.027

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Reduced graphene oxide (rGO) flakes were supersonically sprayed onto a copper substrate, which was used to enhance the heat transfer between the cooling liquid and heat source in pool boiling. The results show that both the critical heat flux at which film bubbles are formed and the effective heat transfer coefficient increased substantially. The surface temperature of the heat source decreased substantially during efficient heat transfer. The higher wettability of the rGO film increased the cohesion of the cooling liquid with the heated surface. The roughened surface of the rGO film also facilitated the formation of small-scale bubbles that enhanced mixing and thus increased the rate of heat transfer. The rGO film was characterized using scanning electron microscopy, atomic force microscopy, and optical profiling. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：124 / 130

页数：7

共 28 条

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