THERMAL SCIENCE

International Scientific Journal

Rajasekaran Madhaiyan

,

Kannan Thannir Pandal Palayam Kandasamy

,

Kumaragurubaran Balasubramanian

,

Mohan Raman

EXPERIMENTAL STUDY ON HEAT TRANSFER PERFORMANCE OF VARIABLE AREA STRAIGHT FIN HEAT SINKS WITH PCM

ABSTRACT
The thermal performance of heat sinks with variable area straight fins with and without PCM is quantitatively explored in this article. The effects of diverse fin geometries (constant area straight fin, variable area straight fin, circular pin fin, hemispherical pin fin, and elliptical pin fin), varying Reynolds numbers, and fin densities on boosting electronics cooling performance were investigated. The goal of this research is to develop the best fin geometry for electronics cooling technologies. This research demonstrates that altering fin density can improve heat sink thermal performance while also reducing heat sink weight. The base temperature of the heat sink is found to be lower in variable area straight fins. In comparison to alternative configurations for heat transfer with PCM, the results show that variable area straight fin heat sinks are the most effective. The thermal resistance of the improved heat sink with variable fin density was reduced by 9%.
KEYWORDS
Variable area straight fin, Reynolds number, PCM and CFD
PAPER SUBMITTED: 2020-10-13
PAPER REVISED: 2021-07-08
PAPER ACCEPTED: 2021-08-21
PUBLISHED ONLINE: 2021-10-10
DOI REFERENCE: https://doi.org/10.2298/TSCI201013299M
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2022, VOLUME 26, ISSUE Issue 2, PAGES [983 - 989]
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Experimental study on heat transfer performance of variable area straight fin heat sinks with PCM

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence