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Second Thermal and Fluids Engineering  Conference

ISSN: 2379-1748
ISBN: 978-1-56700-430-4

EXPERIMENTAL STUDIES OF HEAT TRANSFER ANALYSIS OF MICROCHANNEL HEAT SINK THROUGH DIFFERENT MANIFOLD ARRANGEMENTS

Anurag Dahiya
Chandigarh University

Satbir Singh Sehgal
Chandigarh University, Department of Mechanical Engineering, Punjab, India

Harpreet Singh
Chandigarh University, Department of Mechanical Engineering, Punjab, India

Abstract

The overall performance of microchannel heat sink (MCHS) as a system is affected by the inlet and outlet manifold arrangements in addition to array of micro channel. In the present study the experimental analysis is performed w.r.t the heat transfer coefficient, Nusselt number and pressure drop for three different manifold arrangements. In the experiment deionized water is made to flow through the inlet manifolds to the array of micro channels and exit is through outlet manifolds. In the present work three different manifolds: Rectangular (R), Rectangle with semi-circular (RSC) and Divergent Convergent (DC) of the inlet and outlet shapes are selected. Within the Reynolds number range 342-857 DC-type manifold MCHS has 24%-32% higher heat transfer coefficient in comparison to Rectangle (R) type manifold while RSC-type MCHS heat transfer coefficient was found to be 7% to 10% higher than R-type MCHS.

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