Natural convection of aluminium oxide-water nanofluid
As suspending nanoparticles in fluid-based give tremendous promise in heat transfer application, an understanding on the mechanism of heat transfer is indispensable. The present study dealt with natural convection of nanofluid inside a square cavity heated at the bottom, while the upper part was exp...
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my.utm.561532017-11-01T04:16:52Z http://eprints.utm.my/id/eprint/56153/ Natural convection of aluminium oxide-water nanofluid Afifah, A. N. Syahrullail, Samion Nor Azwadi, Che Sidik TJ Mechanical engineering and machinery As suspending nanoparticles in fluid-based give tremendous promise in heat transfer application, an understanding on the mechanism of heat transfer is indispensable. The present study dealt with natural convection of nanofluid inside a square cavity heated at the bottom, while the upper part was exposed to the atmosphere. Experimental studies have been performed for various physical conditions, such as volume fractions of nanoparticles varying from 0% to 2.0%, different dispersion techniques of nanoparticles in fluid-based, and heating time from 0 to 35 minutes. In general, dynamic viscosity of nanofluid clearly increased with volume fraction, but decreased with the increasing temperature. It was found that improper dispersion technique resulted in viscous solution. On top of that, transport mechanism of thermophoresis and Brownian diffusion were considered in analysing heat transfer across the cavity. Penerbit UTM Press 2015-03 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/56153/1/SamionSyahrullail2015_NaturalConvectionOfAluminiumOxide-Water.pdf Afifah, A. N. and Syahrullail, Samion and Nor Azwadi, Che Sidik (2015) Natural convection of aluminium oxide-water nanofluid. Jurnal Teknologi, 75 (11). pp. 161-167. ISSN 2180-3722 http://dx.doi.org/10.11113/jt.v75.5345 DOI:10.11113/jt.v75.5345 |
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TJ Mechanical engineering and machinery Afifah, A. N. Syahrullail, Samion Nor Azwadi, Che Sidik Natural convection of aluminium oxide-water nanofluid |
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As suspending nanoparticles in fluid-based give tremendous promise in heat transfer application, an understanding on the mechanism of heat transfer is indispensable. The present study dealt with natural convection of nanofluid inside a square cavity heated at the bottom, while the upper part was exposed to the atmosphere. Experimental studies have been performed for various physical conditions, such as volume fractions of nanoparticles varying from 0% to 2.0%, different dispersion techniques of nanoparticles in fluid-based, and heating time from 0 to 35 minutes. In general, dynamic viscosity of nanofluid clearly increased with volume fraction, but decreased with the increasing temperature. It was found that improper dispersion technique resulted in viscous solution. On top of that, transport mechanism of thermophoresis and Brownian diffusion were considered in analysing heat transfer across the cavity. |
format |
Article |
author |
Afifah, A. N. Syahrullail, Samion Nor Azwadi, Che Sidik |
author_facet |
Afifah, A. N. Syahrullail, Samion Nor Azwadi, Che Sidik |
author_sort |
Afifah, A. N. |
title |
Natural convection of aluminium oxide-water nanofluid |
title_short |
Natural convection of aluminium oxide-water nanofluid |
title_full |
Natural convection of aluminium oxide-water nanofluid |
title_fullStr |
Natural convection of aluminium oxide-water nanofluid |
title_full_unstemmed |
Natural convection of aluminium oxide-water nanofluid |
title_sort |
natural convection of aluminium oxide-water nanofluid |
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Penerbit UTM Press |
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2015 |
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http://eprints.utm.my/id/eprint/56153/1/SamionSyahrullail2015_NaturalConvectionOfAluminiumOxide-Water.pdf http://eprints.utm.my/id/eprint/56153/ http://dx.doi.org/10.11113/jt.v75.5345 |
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