Effect of interfacial nanolayer on the effective thermal conductivity of nanoparticle-fluid mixture

被引：425

作者：

Xie, HQ ^{[1
]}

Fujii, M ^{[1
]}

Zhang, X ^{[1
]}

机构：

[1] Kyushu Univ, Inst Mat Chem & Engn, Kasuga, Fukuoka 8168580, Japan

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2005年 / 48卷 / 14期

关键词：

thermal conductivity; nanofluids; interfacial layer;

D O I：

10.1016/j.ijheatmasstransfer.2004.10.040

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Nanofluids, containing metal or nonmetal particles with nanometer sizes, exhibit much greater thermal conductivity than predictions. It has been proposed that interfacial structures formed by liquid molecule layering might play role. We investigated the impact of this interfacial nanolayer on the effective thermal conductivity of nanofluid. An expression for calculating enhanced thermal conductivity of nanofluid has been derived from the general solution of heat conduction equation in spherical coordinates and the equivalent hard sphere fluid model representing the microstructure of particle/liquid mixtures. The effects of nanolayer thickness, nanoparticle size, volume fraction, and thermal conductivity ratio of particle to fluid have been discussed. The predicted results are in good agreement with some recent available experimental data. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：2926 / 2932

页数：7

共 18 条

[1] EFFECTIVE CONDUCTIVITY OF DISPERSIONS - THE EFFECT OF RESISTANCE AT THE PARTICLE SURFACES [J].

CHIEW, YC ;

GLANDT, ED .

CHEMICAL ENGINEERING SCIENCE, 1987, 42 (11) :2677-2685

[2]

Choi S., 1995, DEV APPL NONNEWTONIA, V231, P99

[3] Anomalous thermal conductivity enhancement in nanotube suspensions [J].

Choi, SUS ;

Zhang, ZG ;

Yu, W ;

Lockwood, FE ;

Grulke, EA .

APPLIED PHYSICS LETTERS, 2001, 79 (14) :2252-2254

[4] THE EFFECTIVE THERMAL-CONDUCTIVITY OF A COMPOSITE-MATERIAL WITH SPHERICAL INCLUSIONS [J].

DAVIS, RH .

INTERNATIONAL JOURNAL OF THERMOPHYSICS, 1986, 7 (03) :609-620

[5] Anomalously increased effective thermal conductivities of ethylene glycol-based nanofluids containing copper nanoparticles [J].

Eastman, JA ;

Choi, SUS ;

Li, S ;

Yu, W ;

Thompson, LJ .

APPLIED PHYSICS LETTERS, 2001, 78 (06) :718-720

[6] THERMAL CONDUCTIVITY OF HETEROGENEOUS 2-COMPONENT SYSTEMS [J].

HAMILTON, RL ;

CROSSER, OK .

INDUSTRIAL & ENGINEERING CHEMISTRY FUNDAMENTALS, 1962, 1 (03) :187-&

[7] EFFECTIVE THERMAL-CONDUCTIVITY OF COMPOSITES WITH INTERFACIAL THERMAL BARRIER RESISTANCE [J].

HASSELMAN, DPH ;

JOHNSON, LF .

JOURNAL OF COMPOSITE MATERIALS, 1987, 21 (06) :508-515

[8] CONDUCTION THROUGH A RANDOM SUSPENSION OF SPHERES [J].

JEFFREY, DJ .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1973, 335 (1602) :355-367

[9] Mechanisms of heat flow in suspensions of nano-sized particles (nanofluids) [J].

Keblinski, P ;

Phillpot, SR ;

Choi, SUS ;

Eastman, JA .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2002, 45 (04) :855-863

[10] Measuring thermal conductivity of fluids containing oxide nanoparticles [J].

Lee, S ;

Choi, SUS ;

Li, S ;

Eastman, JA .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1999, 121 (02) :280-289

← 1 2 →