Experimental study on thermal conductivity of ethylene glycol based nanofluids containing Al2O3 nanoparticles

被引：165

作者：

Hemmat Esfe, Mohammad ^{[1
]}

Karimipour, Arash ^{[1
]}

Yan, Wei-Mon ^{[2
]}

Akbari, Mohammad ^{[1
]}

Safaei, Mohammad Reza ^{[3
]}

Dahari, Mahidzal ^{[4
]}

机构：

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

[2] Natl Taipei Univ Technol, Dept Energy & Refrigerating Air Conditioning Engn, Taipei 106, Taiwan

[3] Islamic Azad Univ, Mashhad Branch, Young Researchers & Elite Club, Mashhad, Iran

[4] Univ Malaya, Dept Mech Engn, Fac Engn, Kuala Lumpur 50603, Malaysia

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2015年 / 88卷

关键词：

Nanofluid; Thermal conductivity; Correlation; Al2O3; nanoparticles; Temperature; HEAT-TRANSFER CHARACTERISTICS; ENHANCEMENT; TEMPERATURE; VISCOSITY; DIFFUSIVITY; FLOW;

D O I：

10.1016/j.ijheatmasstransfer.2015.05.010

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

To get more experimental and fundamental understanding of the thermal behavior of nanofluids, the thermal conductivity of Al2O3-EG nanofluids have been examined using a KD2-Pro thermal analyzer. The effects of temperature and concentration on thermal conductivity of nanofluid are investigated. The experiments performed at temperature ranging from 24 degrees C to 50 degrees C while volume fractions up to 5%. The experimental results exhibited that the thermal conductivity of nanofluids enhances significantly with increase in concentration and temperature. Also, attempts were made to propose new accurate correlations for estimating thermal conductivity at different temperatures and concentrations. For this purpose, two new correlations with very high accuracy were suggested. To estimate thermal conductivity at different temperatures, focusing more on accuracy and usability, several correlations have been proposed. These correlations have been presented separately at different temperatures which can be more accurate. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：728 / 734

页数：7

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