Effects of surfactant on stability and thermo-physical properties of metal oxide nanofluids

被引：197

作者：

Khairul, M. A. ^{[1
]}

Shah, Kalpit ^{[1
]}

Doroodchi, Elham ^{[2
]}

Azizian, Reza ^{[3
]}

Moghtaderi, Behdad ^{[1
]}

机构：

[1] Univ Newcastle, Fac Engn & Built Environm, Prior Res Ctr Frontier Energy Technol & Utilisat, Callaghan, NSW 2308, Australia

[2] Univ Newcastle, Fac Engn & Built Environm, Ctr Adv Particle Proc Chem Engn, Callaghan, NSW 2308, Australia

[3] MIT, Nucl Sci & Engn Dept, 77 Massachusetts Ave, Cambridge, MA 02139 USA

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2016年 / 98卷

基金：

澳大利亚研究理事会;

关键词：

Nanofluids; Zeta potential; Particle size distribution; Stability; Surfactants; Viscosity; Thermal conductivity; HEAT-TRANSFER; CONDUCTIVITY ENHANCEMENT; VISCOSITY; PARTICLE; SIZE; FLOW; PH; STABILIZATION; NANOPARTICLES; SUSPENSIONS;

D O I：

10.1016/j.ijheatmasstransfer.2016.03.079

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Optimal thermo-physical properties of nanofluids provide an opportunity to overcome energy associated difficulties, in addition to providing new alternatives to catch, store and exchange of energy. A significant reduction in energy consumption is possible by improving the performance of a heat exchanger circuit, and may in part alleviate current energy related challenging issues such as global warming, climate change, and the fuel crisis. The objective of this work is to gain an insight into the overall stability of nanofluids with respect to pH, zeta potential, particle size distribution, and its effect on viscosity and thermal conductivity. For the purpose of this study two nanofluids were selected (water based alumina and copper oxide). Various nanoparticles concentrations as well as anionic surfactants (sodium dodecylbenzene sulfonate) were investigated for their stability, viscosity as well as thermal conductivity. The results clearly showed that nanofluid stability has a strong relation with viscosity and thermal conductivity. The stability of the nanofluid was found to be improved with a decrease in viscosity and an increase in thermal conductivity. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：778 / 787

页数：10

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