Investigation on characteristics of thermal conductivity enhancement of nanofluids

被引：320

作者：

Hwang, Y. J. ^{[1
]}

Ahn, Y. C. ^{[1
]}

Shin, H. S. ^{[1
]}

Lee, C. G. ^{[1
]}

Kim, G. T. ^{[1
]}

Park, H. S. ^{[1
]}

Lee, J. K. ^{[1
]}

机构：

[1] Pusan Natl Univ, Dept Engn Mech, Kunjung Ku, Pusan 609735, South Korea

来源：

CURRENT APPLIED PHYSICS | 2006年 / 6卷 / 06期

关键词：

nanofluids; nanoparticle; thermal conductivity; zeta potential; transient hot-wire method;

D O I：

10.1016/j.cap.2005.07.021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

it has been shown that a nanofluid consisting of nanoparticles dispersed in base fluid has much higher effective thermal conductivity than pure fluid. In this study, four kinds of nanofluids such as multiwalled carbon nanotube (MWCNT) in water, CuO in water, SiO2 in water, and CuO in ethylene glycol, are produced. Their thermal conductivities are measured by a transient hot-wire method. The thermal conductivity enhancement of water-based MWCNT nanofluid is increased up to 11.3% at a volume fraction of 0.01. The measured thermal conductivities of MWCNT nanofluids are higher than those calculated with Hamilton-Crosser model due to neglecting solid-liquid interaction at the interface. The results show that the thermal conductivity enhancement of nanofluids depends on the thermal conductivities of both particles and the base fluid. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：1068 / 1071

页数：4

共 11 条

[1] TEMPERATURE SENSOR CHARACTERISTICS AND MEASUREMENT SYSTEM-DESIGN [J].