Augmentation of nucleate boiling heat transfer and critical heat flux using nanoparticle thin-film coatings

被引：261

作者：

Forrest, Eric ^{[2
]}

Williamson, Erik ^{[3
]}

Buongiorno, Jacopo ^{[2
]}

Hu, Lin-Wen ^{[1
]}

Rubner, Michael ^{[3
]}

Cohen, Robert ^{[4
]}

机构：

[1] MIT, Nucl Reactor Lab, Cambridge, MA 02139 USA

[2] MIT, Dept Nucl Sci & Engn, Cambridge, MA 02139 USA

[3] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

[4] MIT, Dept Chem Engn, Cambridge, MA 02139 USA

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2010年 / 53卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

Heat transfer enhancement; Critical heat flux; Pool boiling; Thin-film coatings; SURFACE WETTABILITY; POOL; WATER; MULTILAYERS; NANOFLUIDS; MODEL;

D O I：

10.1016/j.ijheatmasstransfer.2009.10.008

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Nanoparticle thin-film coatings applied to boiling surfaces using a layer-by-layer (LbL) assembly method demonstrated significant enhancement in the pool boiling critical heat flux (CHF) and nucleate boiling heat transfer coefficient. Up to 100% enhancement of the critical heat flux and over 100% enhancement of the heat transfer coefficient were observed for pool boiling of nickel wires coated with different thin-films of silica nanoparticles. Surface characterization revealed that the surface wettability changed drastically with the application of these coatings, while causing virtually no change in the surface roughness. It is concluded that the nanoporous structure coupled with the chemical constituency of these coatings leads to the enhanced boiling behavior. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：58 / 67

页数：10

共 33 条

[1] Pool boiling experiments on multiwalled carbon nanotube (MWCNT) forests [J].