Critical Heat Flux Enhancement in Pool Boiling Using Alumina Nanofluids

被引：10

作者：

Hegde, Ramakrishna ^{[1
]}

Rao, Srikanth ^{[2
]}

Reddy, R. ^{[3
]}

机构：

[1] NITK, Bangalore, Karnataka, India

[2] NITK, Dept Mech Engn, Mangalore, India

[3] Reva Inst Technol, Bangalore, Karnataka, India

来源：

HEAT TRANSFER-ASIAN RESEARCH | 2010年 / 39卷 / 05期

关键词：

nanofluids; nanoparticle deposition; critical heat flux; pool boiling;

D O I：

10.1002/htj.20301

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The pool boiling characteristics of dilute dispersions of alumina nanoparticles in water were studied. Consistent with other nanofluid studies, it was found that a significant enhancement in critical heat flux (CHF) can be achieved at modest nanoparticle concentrations (<0.1% by volume). During experimentation and subsequent inspection, formation of a porous layer of nanoparticles on the heater surface occurred during nucleate boiling. This layer significantly changes surface texture of the heater wire surface which could be the reason for improvement in the CHF value. (C) 2010 Wiley Periodicals, Inc.

引用

页码：323 / 331

页数：9

共 7 条

[1] Boiling heat transfer performance and phenomena of Al2O3-water nano-fluids from a plain surface in a pool [J].