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Free convection to cool a hot square block by embedding in center of a chamber by nanofluid and magnetohydrodynamic

Hot block is observed in numerous industries and applications that can being an electronic component, solid matrix, battery, etc. In the present 2D simulation, a uniform magnetic field (MHD model) in the x-direction was utilized to affect the free convection of nanofluid waterAl2O3 for aim of improv...

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Main Authors: Sui, Dianjie, Mansir, Ibrahim B., Gepreel, Khaled A., Dahari, Mahidzal, Nguyen, Dinh Tuyen, Badran, Mohamed Fathy, Van Nguyen, Nhanh, Wae-hayee, Makatar, Zhan, Mingwang
Format: Article
Published: Elsevier 2022
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TJ Mechanical engineering and machinery
Online Access:http://eprints.um.edu.my/42946/
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spelling my.um.eprints.429462023-09-07T06:25:00Z http://eprints.um.edu.my/42946/ Free convection to cool a hot square block by embedding in center of a chamber by nanofluid and magnetohydrodynamic Sui, Dianjie Mansir, Ibrahim B. Gepreel, Khaled A. Dahari, Mahidzal Nguyen, Dinh Tuyen Badran, Mohamed Fathy Van Nguyen, Nhanh Wae-hayee, Makatar Zhan, Mingwang TJ Mechanical engineering and machinery Hot block is observed in numerous industries and applications that can being an electronic component, solid matrix, battery, etc. In the present 2D simulation, a uniform magnetic field (MHD model) in the x-direction was utilized to affect the free convection of nanofluid waterAl2O3 for aim of improvement and control the heat transfer and flow characterizations. The used geometry consisted of square chamber and hot block embedded in center of square chamber. The walls of the hot block and chamber performed as hot and cold sources led to create buoyancy force. This study investigated for Varity inclined angles of hot block (0 < eta < 45), Rayleigh numbers (102 < Ra < 104) and Hartmann numbers (0 < Ha < 40) when the volume fraction of suspension was phi = 0.04. Also, the effects of the mentioned parameters were studied on the streamlines, temperature contours, average Nusselt number. Observations showed that Adding magnetic field increased the heat transfer rate by 200% At low Rayleigh numbers, but it reduced the heat transfer rate 48% At high Rayleigh numbers. Elsevier 2022-05 Article PeerReviewed Sui, Dianjie and Mansir, Ibrahim B. and Gepreel, Khaled A. and Dahari, Mahidzal and Nguyen, Dinh Tuyen and Badran, Mohamed Fathy and Van Nguyen, Nhanh and Wae-hayee, Makatar and Zhan, Mingwang (2022) Free convection to cool a hot square block by embedding in center of a chamber by nanofluid and magnetohydrodynamic. Case Studies in Thermal Engineering, 33. ISSN 2214-157X, DOI https://doi.org/10.1016/j.csite.2022.101980 <https://doi.org/10.1016/j.csite.2022.101980>. 10.1016/j.csite.2022.101980
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Sui, Dianjie
Mansir, Ibrahim B.
Gepreel, Khaled A.
Dahari, Mahidzal
Nguyen, Dinh Tuyen
Badran, Mohamed Fathy
Van Nguyen, Nhanh
Wae-hayee, Makatar
Zhan, Mingwang
Free convection to cool a hot square block by embedding in center of a chamber by nanofluid and magnetohydrodynamic
description Hot block is observed in numerous industries and applications that can being an electronic component, solid matrix, battery, etc. In the present 2D simulation, a uniform magnetic field (MHD model) in the x-direction was utilized to affect the free convection of nanofluid waterAl2O3 for aim of improvement and control the heat transfer and flow characterizations. The used geometry consisted of square chamber and hot block embedded in center of square chamber. The walls of the hot block and chamber performed as hot and cold sources led to create buoyancy force. This study investigated for Varity inclined angles of hot block (0 < eta < 45), Rayleigh numbers (102 < Ra < 104) and Hartmann numbers (0 < Ha < 40) when the volume fraction of suspension was phi = 0.04. Also, the effects of the mentioned parameters were studied on the streamlines, temperature contours, average Nusselt number. Observations showed that Adding magnetic field increased the heat transfer rate by 200% At low Rayleigh numbers, but it reduced the heat transfer rate 48% At high Rayleigh numbers.
format Article
author Sui, Dianjie
Mansir, Ibrahim B.
Gepreel, Khaled A.
Dahari, Mahidzal
Nguyen, Dinh Tuyen
Badran, Mohamed Fathy
Van Nguyen, Nhanh
Wae-hayee, Makatar
Zhan, Mingwang
author_facet Sui, Dianjie
Mansir, Ibrahim B.
Gepreel, Khaled A.
Dahari, Mahidzal
Nguyen, Dinh Tuyen
Badran, Mohamed Fathy
Van Nguyen, Nhanh
Wae-hayee, Makatar
Zhan, Mingwang
author_sort Sui, Dianjie
title Free convection to cool a hot square block by embedding in center of a chamber by nanofluid and magnetohydrodynamic
title_short Free convection to cool a hot square block by embedding in center of a chamber by nanofluid and magnetohydrodynamic
title_full Free convection to cool a hot square block by embedding in center of a chamber by nanofluid and magnetohydrodynamic
title_fullStr Free convection to cool a hot square block by embedding in center of a chamber by nanofluid and magnetohydrodynamic
title_full_unstemmed Free convection to cool a hot square block by embedding in center of a chamber by nanofluid and magnetohydrodynamic
title_sort free convection to cool a hot square block by embedding in center of a chamber by nanofluid and magnetohydrodynamic
publisher Elsevier
publishDate 2022
url http://eprints.um.edu.my/42946/
_version_ 1778161684016267264
score 13.211869

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