Computational Study of Hydrothermal Performance of Microchannel Heat Sink With Trefoil Shape Ribs

Shizhong Zhang; Faraz Ahmad; Haseeb Ali; Sadiq Ali; Kareem Akhtar; Nisar Ali; Mohamed Badran

doi:10.1109/ACCESS.2022.3190496

IEEE Access (Jan 2022)

Computational Study of Hydrothermal Performance of Microchannel Heat Sink With Trefoil Shape Ribs

Shizhong Zhang,
Faraz Ahmad,
Haseeb Ali,
Sadiq Ali,
Kareem Akhtar,
Nisar Ali,
Mohamed Badran

Affiliations

Shizhong Zhang: Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai’an, China
Faraz Ahmad: ORCiD; Department of Mechanical Engineering, Aerospace and Aviation Campus Kamra, Air University, Islamabad, Pakista
Haseeb Ali: ORCiD; Department of Mechanical Engineering, University of Engineering and Technology Peshawar, Peshawar, Pakistan
Sadiq Ali: Department of Mechanical Engineering, University of Engineering and Technology Peshawar, Peshawar, Pakistan
Kareem Akhtar: ORCiD; Department of Mechanical Engineering, University of Engineering and Technology Peshawar, Peshawar, Pakistan
Nisar Ali: Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai’an, China
Mohamed Badran: ORCiD; Mechanical Engineering Department, Faculty of Engineering and Technology, Future University in Egypt, New Cairo, Egypt

DOI: https://doi.org/10.1109/ACCESS.2022.3190496
Journal volume & issue: Vol. 10
pp. 74412 – 74424

Abstract

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Traditional cooling technologies are now become inadequate for electronic chips cooling due to their size reduction and increase in generated heat flux. Microchannel heat sink (MCHS) is promising candidate due to its superior cooling performance than its competitors. The aim of this study is to investigate the hydrothermal performance of MCHS with novel trefoil shape ribs. The three configurations of trefoil shape ribs considered in this study are: MC-AWTR (all wall trefoil ribs), MC-SWTR (side wall trefoil ribs), and MC-BWTR (base wall trefoil ribs). The performance of MCHS is evaluated on the basis of thermal enhancement factor, thermal resistance, transport efficiency and entropy generation at Re=100-1000. The results predict that addition of trefoil ribs to walls of smooth microchannel significantly improve its thermal performance at cost of pressure penalty. Nusselt number and average heat transfer coefficient tends to increase with rise in Reynolds number while thermal resistance and entropy generation reduces. Highest pressure drop occurs for MC-AWTR configuration due to more obstruction of the fluid flow. MC-SWTR configuration has highest thermal enhancement factor among all configurations while MC-AWTR has lowest due to large pressure drop penalty at all Reynold numbers. So, overall MC-SWTR shows superior performance than any other considered trefoil rib configuration.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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