期刊
THERMOCHIMICA ACTA
卷 477, 期 1-2, 页码 21-24出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.tca.2008.08.001
关键词
Carbon nanotube; Nanofluid; Mechanochemical reaction; Thermal conductivity
资金
- National High Technology Research and Development Program of China [2006AA05Z232]
- Shanghai Pujiang Program [06PJ14045]
- Shanghai Educational Development Foundation
- Shanghai Municipal Education Commission [07SG56]
Multi-walled carbon nanotubes (CNTs) were treated by using rnechanochemical reaction method to enhance their dispersibility for producing CNT nanofluids. The thermal conductivity was measured by a short hot wire technique and the viscosity was measured by a rotary viscometer. The thermal conductivity enhancement reaches up to 17.5% at volume fraction of 0.01 for an ethylene glycol based nanofluid. Temperature has no obvious effects on thermal conductivity enhancement for the as prepared nanofluids. With an increase in thermal conductivity of the base fluid, the thermal conductivity enhancement of a nanofluid decreases. At low volume fractions (<0.4 vol%), nanofluids have lower viscosity than corresponding base fluid due to lubricative effect of nanoparticles. When the Volume fraction is higher than 0.4 vol%, the viscosity increases with nanoparticle loadings. The prepared nanofluids, with no contamination to medium, good fluidity, stability, and high thermal conductivity, would have potential applications as coolants in advanced thermal systems. (C) 2008 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据