Heat transfer enhancement in a p-shape finned radial heat sink subjected to natural convection: Thermal significance of slot and dimples in fin
This study presents the optimum design of the radial heat sink for light-emitting diode (LED) under natural convection. A radial heat sink with a hollow circular base and a P-shape fin type incorporated with either slots or both slots and dimples was numerically investigated using the ANSYS (Fluent...
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Format: | Article |
Language: | English |
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Institute of Technology and Education Galileo da Amazônia
2022-04-01
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Series: | ITEGAM-JETIA |
Online Access: | https://itegam-jetia.org/journal/index.php/jetia/article/view/804 |
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author | Ibrahim Ademola Fetuga Olabode Thomas Olakoyejo Adekunle Omolade Adelaja Joshua Kolawole Gbegudu |
author_facet | Ibrahim Ademola Fetuga Olabode Thomas Olakoyejo Adekunle Omolade Adelaja Joshua Kolawole Gbegudu |
author_sort | Ibrahim Ademola Fetuga |
collection | DOAJ |
description |
This study presents the optimum design of the radial heat sink for light-emitting diode (LED) under natural convection. A radial heat sink with a hollow circular base and a P-shape fin type incorporated with either slots or both slots and dimples was numerically investigated using the ANSYS (Fluent) commercial code, with the aim of achieving better cooling performance at a lower heat sink mass. The average temperature (Tavg) and mass of the HS for various model designs, namely; Type A (HS with plain fin), Type B (HS with slot) and Type C (HS with both dimples and slot) were compared to select the best configuration. The effect of heat flux (700≤q ̇≤1900) on average temperature of radial heat sink was investigated. It was found that for all three models, the temperature difference between the HS and the ambient air of the fluid domain linearly increased with heat flux. At q ̇=1900W/m2 , when compared to Type A (HS with plain fins), Type C (HS with slot and dimples) models offered the best cooling performance, followed by Type B where the mass and average temperature of the heat sink is reduced by 13.7% and 5.1%, 8.3% and 1%, respectively.
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first_indexed | 2024-04-13T23:58:28Z |
format | Article |
id | doaj.art-9634de4d044844b9820bf0fbc451b6c7 |
institution | Directory Open Access Journal |
issn | 2447-0228 |
language | English |
last_indexed | 2024-04-13T23:58:28Z |
publishDate | 2022-04-01 |
publisher | Institute of Technology and Education Galileo da Amazônia |
record_format | Article |
series | ITEGAM-JETIA |
spelling | doaj.art-9634de4d044844b9820bf0fbc451b6c72022-12-22T02:23:47ZengInstitute of Technology and Education Galileo da AmazôniaITEGAM-JETIA2447-02282022-04-0183410.5935/jetia.v8i34.804Heat transfer enhancement in a p-shape finned radial heat sink subjected to natural convection: Thermal significance of slot and dimples in finIbrahim Ademola Fetuga0Olabode Thomas Olakoyejo1Adekunle Omolade Adelaja2Joshua Kolawole Gbegudu3Department of Mechanical Engineering, University of Lagos – Akoka. Yaba-Lagos, NigeriaDepartment of Mechanical Engineering, University of Lagos – Akoka. Yaba-Lagos, NigeriaDepartment of Mechanical Engineering, University of Lagos – Akoka. Yaba-Lagos, NigeriaDepartment of Mechanical Engineering, University of Lagos – Akoka. Yaba-Lagos, Nigeria This study presents the optimum design of the radial heat sink for light-emitting diode (LED) under natural convection. A radial heat sink with a hollow circular base and a P-shape fin type incorporated with either slots or both slots and dimples was numerically investigated using the ANSYS (Fluent) commercial code, with the aim of achieving better cooling performance at a lower heat sink mass. The average temperature (Tavg) and mass of the HS for various model designs, namely; Type A (HS with plain fin), Type B (HS with slot) and Type C (HS with both dimples and slot) were compared to select the best configuration. The effect of heat flux (700≤q ̇≤1900) on average temperature of radial heat sink was investigated. It was found that for all three models, the temperature difference between the HS and the ambient air of the fluid domain linearly increased with heat flux. At q ̇=1900W/m2 , when compared to Type A (HS with plain fins), Type C (HS with slot and dimples) models offered the best cooling performance, followed by Type B where the mass and average temperature of the heat sink is reduced by 13.7% and 5.1%, 8.3% and 1%, respectively. https://itegam-jetia.org/journal/index.php/jetia/article/view/804 |
spellingShingle | Ibrahim Ademola Fetuga Olabode Thomas Olakoyejo Adekunle Omolade Adelaja Joshua Kolawole Gbegudu Heat transfer enhancement in a p-shape finned radial heat sink subjected to natural convection: Thermal significance of slot and dimples in fin ITEGAM-JETIA |
title | Heat transfer enhancement in a p-shape finned radial heat sink subjected to natural convection: Thermal significance of slot and dimples in fin |
title_full | Heat transfer enhancement in a p-shape finned radial heat sink subjected to natural convection: Thermal significance of slot and dimples in fin |
title_fullStr | Heat transfer enhancement in a p-shape finned radial heat sink subjected to natural convection: Thermal significance of slot and dimples in fin |
title_full_unstemmed | Heat transfer enhancement in a p-shape finned radial heat sink subjected to natural convection: Thermal significance of slot and dimples in fin |
title_short | Heat transfer enhancement in a p-shape finned radial heat sink subjected to natural convection: Thermal significance of slot and dimples in fin |
title_sort | heat transfer enhancement in a p shape finned radial heat sink subjected to natural convection thermal significance of slot and dimples in fin |
url | https://itegam-jetia.org/journal/index.php/jetia/article/view/804 |
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