Local convective heat transfer coefficient and friction factor of CuO/water nanofluid in a microchannel heat sink

被引：30
作者：
Chabi, A. R. [1 ]
Zarrinabadi, S. [1 ]
Peyghambarzadeh, S. M. [1 ]
Hashemabadi, S. H. [2 ]
Salimi, M. [1 ]
机构：
[1] Islamic Azad Univ, Mahshahr Branch, Dept Chem Engn, Mahshahr, Iran
[2] Iran Univ Sci & Technol, CFD Res Lab, Sch Chem Engn, Tehran 16846, Iran
来源：
HEAT AND MASS TRANSFER | 2017年 / 53卷 / 02期
关键词：
SINGLE-PHASE; THERMAL-CONDUCTIVITY; TRANSFER ENHANCEMENT; FLOW CHARACTERISTICS; PERFORMANCE; PARTICLES;
D O I：
10.1007/s00231-016-1851-0
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Forced convective heat transfer in a microchannel heat sink (MCHS) using CuO/water nanofluids with 0.1 and 0.2 vol% as coolant was investigated. The experiments were focused on the heat transfer enhancement in the channel entrance region at Re < 1800. Hydraulic performance of the MCHS was also estimated by measuring friction factor and pressure drop. Results showed that higher convective heat transfer coefficient was obtained at the microchannel entrance. Maximum enhancement of the average heat transfer coefficient compared with deionized water was about 40 % for 0.2 vol% nanofluid at Re = 1150. Enhancement of the convective heat transfer coefficient of nanofluid decreased with further increasing of Reynolds number.
引用
收藏
页码：661 / 671
页数：11
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