Investigation of the effect of different materials on convective heat transfer

Conventionally, the study of convection heat transfer merely focuses on the behavior of air flow without considering the conductive effect of the horizontal flat plate. However, it is expected that the conductive effect of the horizontal plate somewhat affects the air flow temperature across the fla...

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Main Authors: A. A., Ibrahim, P. L., Chong, V. S., Rajasekharan, M. M., Ali, O. S., Zaroog, A. N., Oumer
Format: Article
Language:English
Published: Faculty Mechanical Engineering, UMP 2020
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Online Access:http://umpir.ump.edu.my/id/eprint/29212/1/3.%20Investigation%20of%20the%20effect%20of%20different%20materials%20on%20convective%20heat%20transfer.pdf
http://umpir.ump.edu.my/id/eprint/29212/
https://doi.org/10.15282/jmes.14.2.2020.08.0520
https://doi.org/10.15282/jmes.14.2.2020.08.0520
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Institution: Universiti Malaysia Pahang
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spelling my.ump.umpir.292122020-10-20T03:58:14Z http://umpir.ump.edu.my/id/eprint/29212/ Investigation of the effect of different materials on convective heat transfer A. A., Ibrahim P. L., Chong V. S., Rajasekharan M. M., Ali O. S., Zaroog A. N., Oumer TJ Mechanical engineering and machinery Conventionally, the study of convection heat transfer merely focuses on the behavior of air flow without considering the conductive effect of the horizontal flat plate. However, it is expected that the conductive effect of the horizontal plate somewhat affects the air flow temperature across the flat plate. Therefore, it is motivated to study the variation of air flow temperature across different materials of flat plate in various time frame. The materials used in this study are aluminium, stainless steel and cast iron. Infrared camera and FloEFD simulation software are used to measure the upper surface temperature of the flat plate. For forced convection, the study is carried out within the range of 103 Re 104 and within the range of 1 × 107 Ra < 2.2 × 107 for natural convection. Flow velocity of 2.3 m/s, 4.1 m/s and 5.2 m/s are used for the forced convection. The results showed that aluminium plate cools down faster than the other two metal plates used in all scenarios. Stainless steel’s temperature goes down faster compared to cast iron. These results were supported by the fact that aluminium has higher heat transfer rate of other metals. For forced convection, the discrepancies of temperatures between experimental and simulation studies are below 10%, which demonstrates that the results are reasonably acceptable. For natural convection, even though the discrepancies between simulation and experimental results on temperature variations are relatively large, the temperatures varied in similar pattern. This indicates that the results are reliable. Faculty Mechanical Engineering, UMP 2020 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/29212/1/3.%20Investigation%20of%20the%20effect%20of%20different%20materials%20on%20convective%20heat%20transfer.pdf A. A., Ibrahim and P. L., Chong and V. S., Rajasekharan and M. M., Ali and O. S., Zaroog and A. N., Oumer (2020) Investigation of the effect of different materials on convective heat transfer. Journal of Mechanical Engineering and Sciences (JMES), 14 (2). pp. 6642-6651. ISSN 2289-4659 (print); 2231-8380 (online) https://doi.org/10.15282/jmes.14.2.2020.08.0520 https://doi.org/10.15282/jmes.14.2.2020.08.0520
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
A. A., Ibrahim
P. L., Chong
V. S., Rajasekharan
M. M., Ali
O. S., Zaroog
A. N., Oumer
Investigation of the effect of different materials on convective heat transfer
description Conventionally, the study of convection heat transfer merely focuses on the behavior of air flow without considering the conductive effect of the horizontal flat plate. However, it is expected that the conductive effect of the horizontal plate somewhat affects the air flow temperature across the flat plate. Therefore, it is motivated to study the variation of air flow temperature across different materials of flat plate in various time frame. The materials used in this study are aluminium, stainless steel and cast iron. Infrared camera and FloEFD simulation software are used to measure the upper surface temperature of the flat plate. For forced convection, the study is carried out within the range of 103 Re 104 and within the range of 1 × 107 Ra < 2.2 × 107 for natural convection. Flow velocity of 2.3 m/s, 4.1 m/s and 5.2 m/s are used for the forced convection. The results showed that aluminium plate cools down faster than the other two metal plates used in all scenarios. Stainless steel’s temperature goes down faster compared to cast iron. These results were supported by the fact that aluminium has higher heat transfer rate of other metals. For forced convection, the discrepancies of temperatures between experimental and simulation studies are below 10%, which demonstrates that the results are reasonably acceptable. For natural convection, even though the discrepancies between simulation and experimental results on temperature variations are relatively large, the temperatures varied in similar pattern. This indicates that the results are reliable.
format Article
author A. A., Ibrahim
P. L., Chong
V. S., Rajasekharan
M. M., Ali
O. S., Zaroog
A. N., Oumer
author_facet A. A., Ibrahim
P. L., Chong
V. S., Rajasekharan
M. M., Ali
O. S., Zaroog
A. N., Oumer
author_sort A. A., Ibrahim
title Investigation of the effect of different materials on convective heat transfer
title_short Investigation of the effect of different materials on convective heat transfer
title_full Investigation of the effect of different materials on convective heat transfer
title_fullStr Investigation of the effect of different materials on convective heat transfer
title_full_unstemmed Investigation of the effect of different materials on convective heat transfer
title_sort investigation of the effect of different materials on convective heat transfer
publisher Faculty Mechanical Engineering, UMP
publishDate 2020
url http://umpir.ump.edu.my/id/eprint/29212/1/3.%20Investigation%20of%20the%20effect%20of%20different%20materials%20on%20convective%20heat%20transfer.pdf
http://umpir.ump.edu.my/id/eprint/29212/
https://doi.org/10.15282/jmes.14.2.2020.08.0520
https://doi.org/10.15282/jmes.14.2.2020.08.0520
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