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Effect of wall resistance on the total thermal resistance of a stacked microchannel heat sink

This paper reports on the different modeling approach of the total thermal resistance in a microchannel heat sink (MCHS); with wall resistance and the frequently used fin model, in comparison with experimental results. For a single stack MCHS, the wall model caused more than 10% difference but it ca...

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Main Authors: Shamsuddin, H. S., Abidin, U., Zaidan, H. A., Ghazali, N. M.
Format: Article
Language:English
Published: Novel Carbon Resource Sciences 2021
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/94774/1/NormahMohdGhazali2021_EffectofWallResistance.pdf
http://eprints.utm.my/id/eprint/94774/
http://dx.doi.org/10.5109/4372270
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spelling my.utm.947742022-04-29T21:54:10Z http://eprints.utm.my/id/eprint/94774/ Effect of wall resistance on the total thermal resistance of a stacked microchannel heat sink Shamsuddin, H. S. Abidin, U. Zaidan, H. A. Ghazali, N. M. TJ Mechanical engineering and machinery This paper reports on the different modeling approach of the total thermal resistance in a microchannel heat sink (MCHS); with wall resistance and the frequently used fin model, in comparison with experimental results. For a single stack MCHS, the wall model caused more than 10% difference but it can be extended to a stacked MCHS while the fin model could not, due to the adiabatic top condition. The wall resistance model is idealized, assuming a 100% efficient convective heat transfer while in the fin model 70% was the maximum. Meanwhile, stacking showed that at a constant flow rate, the thermal resistance could be reduced by 3% for a double stack, while increasing beyond that will decrease the thermal performance of the MCHS. The study showed the limits of models used and possible stacking of a MCHS for improved heat removal capability. Novel Carbon Resource Sciences 2021 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/94774/1/NormahMohdGhazali2021_EffectofWallResistance.pdf Shamsuddin, H. S. and Abidin, U. and Zaidan, H. A. and Ghazali, N. M. (2021) Effect of wall resistance on the total thermal resistance of a stacked microchannel heat sink. Evergreen, 8 (1). ISSN 2189-0420 http://dx.doi.org/10.5109/4372270 DOI: 10.5109/4372270
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Shamsuddin, H. S.
Abidin, U.
Zaidan, H. A.
Ghazali, N. M.
Effect of wall resistance on the total thermal resistance of a stacked microchannel heat sink
description This paper reports on the different modeling approach of the total thermal resistance in a microchannel heat sink (MCHS); with wall resistance and the frequently used fin model, in comparison with experimental results. For a single stack MCHS, the wall model caused more than 10% difference but it can be extended to a stacked MCHS while the fin model could not, due to the adiabatic top condition. The wall resistance model is idealized, assuming a 100% efficient convective heat transfer while in the fin model 70% was the maximum. Meanwhile, stacking showed that at a constant flow rate, the thermal resistance could be reduced by 3% for a double stack, while increasing beyond that will decrease the thermal performance of the MCHS. The study showed the limits of models used and possible stacking of a MCHS for improved heat removal capability.
format Article
author Shamsuddin, H. S.
Abidin, U.
Zaidan, H. A.
Ghazali, N. M.
author_facet Shamsuddin, H. S.
Abidin, U.
Zaidan, H. A.
Ghazali, N. M.
author_sort Shamsuddin, H. S.
title Effect of wall resistance on the total thermal resistance of a stacked microchannel heat sink
title_short Effect of wall resistance on the total thermal resistance of a stacked microchannel heat sink
title_full Effect of wall resistance on the total thermal resistance of a stacked microchannel heat sink
title_fullStr Effect of wall resistance on the total thermal resistance of a stacked microchannel heat sink
title_full_unstemmed Effect of wall resistance on the total thermal resistance of a stacked microchannel heat sink
title_sort effect of wall resistance on the total thermal resistance of a stacked microchannel heat sink
publisher Novel Carbon Resource Sciences
publishDate 2021
url http://eprints.utm.my/id/eprint/94774/1/NormahMohdGhazali2021_EffectofWallResistance.pdf
http://eprints.utm.my/id/eprint/94774/
http://dx.doi.org/10.5109/4372270
_version_ 1732945392391159808
score 13.211869

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