Effects of temperature and concentration on the viscosity of nanofluids made of single-wall carbon nanotubes in ethylene glycol

被引：146

作者：

Baratpour, Mohsen ^{[1
]}

Karimipour, Arash ^{[2
]}

Afrand, Masoud ^{[2
]}

Wongwises, Somchai ^{[3
]}

机构：

[1] Islamic Azad Univ, Khomeinishahr Branch, Dept Mech Engn, Esfahan, Iran

[2] Islamic Azad Univ, Najafabad Branch, Dept Mech Engn, Najafabad, Iran

[3] King Mongkuts Univ Technol Thonburi, Fac Engn, Dept Mech Engn, Fluid Mech Thermal Engn & Multiphase Flow Res Lab, Bangkok 10140, Thailand

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2016年 / 74卷

关键词：

Viscosity; SWCNTs/EG nanofluid; Correlation; Newtonian behavior; ARTIFICIAL NEURAL-NETWORK; MIXED-CONVECTION FLOW; HEAT-TRANSFER; THERMAL-CONDUCTIVITY; THERMOPHYSICAL PROPERTIES; WATER MIXTURE; PRESSURE-DROP; NANOPARTICLES; CAVITY; TIO2;

D O I：

10.1016/j.icheatmasstransfer.2016.02.008

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper includes an examination of the dynamic viscosity of single-wall carbon nanotubes (SWCNT5) in ethylene glycol (EG) at temperatures ranging from 30 degrees C to 60 degrees C for various suspensions at solid volume fractions of 0.0125%, 0.025%, 0.05%, 0.075%, and 0.1%. Experimental findings revealed that SWCNTs/EG nanofluid behaves as a Newtonian fluid at solid volume fractions of 0.1% and at all considered temperatures. The measurements also indicated that dynamic viscosity increases with increasing solid volume fraction and decreases with increasing temperature. Moreover, relative viscosity results showed that that the viscosity of the nanofluid increases to 3.18 times that of the base fluid at a temperature of 30 degrees C and a solid volume fraction of 0.1%. Finally, using experimental data to estimate the dynamic viscosity of SWCNTs/EG nanofluid, a new correlation with acceptable accuracy was suggested. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：108 / 113

页数：6

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