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Thermal and hydraulic characteristics of nanofluid in a triangular grooved microchannel heat sink (TGMCHS)

Kuppusamy, Navin Raja and Mohammed, Hussein A. and Lim, Chin Wai (2014) Thermal and hydraulic characteristics of nanofluid in a triangular grooved microchannel heat sink (TGMCHS). Applied Mathematics and Computation, 246 . pp. 168-183. ISSN 0096-3003

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Official URL: http://dx.doi.org/10.1016/j.amc.2014.07.087

Abstract

A numerical simulation is conducted to examine the heat transfer and fluid flow characteristics of nanofluids in a triangular grooved microchannel heat sink (TGMCHS). The governing and energy equations are solved using the finite volume method (FVM). The influence of the geometrical parameters such as the angle (50-100°), depth (10-25 µm) and pitch (400-550 µm) of the groove on the thermal performance of TGMCHS was examined. The effects of different nanoparticle types (Al2O3, CuO, SiO2, ZnO), volume fraction (Ø = 0.01-Ø = 0.04), particle diameter (25-80 nm) and base fluid (water, ethylene glycol, engine oil) at different Reynolds numbers are also studied. The thermal performance of TGMCHS had significant increment with the increment of angle and depth of the groove accompanied with an optimum groove pitch. It is found that the TGMCHS thermal performance of using Al2O3-H2O (Ø = 0.04, d np = 25 nm) is outperformed the simple MCHS using water.

Item Type:Article
Uncontrolled Keywords:performance improvement, triangular groove
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:63046
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:14 Jun 2017 02:19
Last Modified:14 Jun 2017 02:19

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