Experimental determination of turbulent forced convection heat transfer and friction factor with SiO2 nanofluid

被引：188

作者：

Azmi, W. H. ^{[1
]}

Sharma, K. V. ^{[2
]}

Sarma, P. K. ^{[3
]}

Mamat, Rizalman ^{[1
]}

Anuar, Shahrani ^{[1
]}

Rao, V. Dharma ^{[4
]}

机构：

[1] Univ Malaysia Pahang, Fac Mech Engn, Pekan 26600, Pahang, Malaysia

[2] JNTUH Coll Engn, Dept Mech Engn, Manthani, Andhra Pradesh, India

[3] GITAM Univ, Visakhapatnam, Andhra Pradesh, India

[4] GVP Coll Engn, Dept Mech Engn, Visakhapatnam, Andhra Pradesh, India

来源：

EXPERIMENTAL THERMAL AND FLUID SCIENCE | 2013年 / 51卷

关键词：

Silicondioxide nanofluid; Thermal conductivity; Viscosity; Friction factor; Heat transfer coefficient; Enhancement ratio; FLOW; SUSPENSIONS;

D O I：

10.1016/j.expthermflusci.2013.07.006

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The heat transfer coefficients and friction factor with SiO2/water nanofluid up to 4% particle volume concentration are determined for flow in a circular tube under constant heat flux boundary condition. Experiments are undertaken in the Reynolds number range of 5000-27,000 at a bulk temperature of 30 degrees C. The Nusselt number and friction factor at 3.0% nanofluid particle concentration is respectively greater than the values of water by 32.7% and 17.1%. The pressure drop increases with particle concentration up to 3.0% and decreases thereafter. The nanofluid friction factor decreases with increase in Reynolds number at any concentration. The particle concentration at which SiO2 nanofluid gives maximum heat transfer has been experimentally determined. (C) 2013 Elsevier Inc. All rights reserved.

引用

页码：103 / 111

页数：9

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