An overview of passive techniques for heat transfer augmentation in microchannel heat sink

Active and passive cooling are the two possible methods for removing heat. An active cooling system is the one that involves the use of energy as opposed to passive cooling that uses no energy. Passive cooling methods are cost effective and more reliable than active cooling due to the absence of mov...

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Bibliographic Details
Published in:International communications in heat and mass transfer 2017-11, Vol.88, p.74-83
Main Authors: Sidik, Nor Azwadi Che, Muhamad, Muhammad Noor Afiq Witri, Japar, Wan Mohd Arif Aziz, Rasid, Zainudin A.
Format: Article
Language:English
Subjects:
Heat transfer enhancement
Microchannel heat sink
Nanofluids
Passive cooling method
Reynolds number
Surface roughness
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Summary:Active and passive cooling are the two possible methods for removing heat. An active cooling system is the one that involves the use of energy as opposed to passive cooling that uses no energy. Passive cooling methods are cost effective and more reliable than active cooling due to the absence of moving parts. Microchannel heat sink is one of high-tech devices that have widely considered passive cooling methods especially for electronics cooling. In this paper, the use of passive cooling methods in microchannel heat sink is comprehensively discussed. This paper also present the effects of some important parameters such as the type of channel types, surface roughness, fluid additives, and Reynolds number on the rate of heat transfer in microchannel heat sink. Finally, the conclusions and important summaries were presented according to the data collected.
ISSN:0735-1933
1879-0178
DOI:10.1016/j.icheatmasstransfer.2017.08.009