Experimental Study of Natural Convection Cooling of Vertical Cylinders with Inclined Plate Fins

In this paper, natural convection from vertical cylinders with inclined plate fins is investigated experimentally for use in cooling electronic equipment. Extensive experimental investigations are performed for various inclination angles, fin numbers, and base temperatures. From the experimental dat...

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Main Authors: Jong Bum Lee, Hyun Jung Kim, Dong-Kwon Kim
Format: Article
Language:English
Published: MDPI AG 2016-05-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/9/6/391
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author Jong Bum Lee
Hyun Jung Kim
Dong-Kwon Kim
author_facet Jong Bum Lee
Hyun Jung Kim
Dong-Kwon Kim
author_sort Jong Bum Lee
collection DOAJ
description In this paper, natural convection from vertical cylinders with inclined plate fins is investigated experimentally for use in cooling electronic equipment. Extensive experimental investigations are performed for various inclination angles, fin numbers, and base temperatures. From the experimental data, a correlation for estimating the Nusselt number is proposed. The correlation is applicable when the Rayleigh number, inclination angle, and fin number are in the ranges 100,000–600,000, 30°–90°, and 9–36, respectively. Using the correlation, a contour map depicting the thermal resistance as a function of the fin number and fin thickness is presented. Finally, the optimal thermal resistances of cylinders with inclined plate fins and conventional radial plate fins are compared. It is found that that the optimal thermal resistance of the cylinder with inclined fins is 30% lower than that of the cylinder with radial plate fins.
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spelling doaj.art-5ebff5f89e24492fa153c85999b68e8b2022-12-22T03:19:04ZengMDPI AGEnergies1996-10732016-05-019639110.3390/en9060391en9060391Experimental Study of Natural Convection Cooling of Vertical Cylinders with Inclined Plate FinsJong Bum Lee0Hyun Jung Kim1Dong-Kwon Kim2Department of Mechanical Engineering, Ajou University, Suwon 443-749, KoreaDepartment of Mechanical Engineering, Ajou University, Suwon 443-749, KoreaDepartment of Mechanical Engineering, Ajou University, Suwon 443-749, KoreaIn this paper, natural convection from vertical cylinders with inclined plate fins is investigated experimentally for use in cooling electronic equipment. Extensive experimental investigations are performed for various inclination angles, fin numbers, and base temperatures. From the experimental data, a correlation for estimating the Nusselt number is proposed. The correlation is applicable when the Rayleigh number, inclination angle, and fin number are in the ranges 100,000–600,000, 30°–90°, and 9–36, respectively. Using the correlation, a contour map depicting the thermal resistance as a function of the fin number and fin thickness is presented. Finally, the optimal thermal resistances of cylinders with inclined plate fins and conventional radial plate fins are compared. It is found that that the optimal thermal resistance of the cylinder with inclined fins is 30% lower than that of the cylinder with radial plate fins.http://www.mdpi.com/1996-1073/9/6/391nusselt numbernatural convectioninclined plate fin
spellingShingle Jong Bum Lee
Hyun Jung Kim
Dong-Kwon Kim
Experimental Study of Natural Convection Cooling of Vertical Cylinders with Inclined Plate Fins
Energies
nusselt number
natural convection
inclined plate fin
title Experimental Study of Natural Convection Cooling of Vertical Cylinders with Inclined Plate Fins
title_full Experimental Study of Natural Convection Cooling of Vertical Cylinders with Inclined Plate Fins
title_fullStr Experimental Study of Natural Convection Cooling of Vertical Cylinders with Inclined Plate Fins
title_full_unstemmed Experimental Study of Natural Convection Cooling of Vertical Cylinders with Inclined Plate Fins
title_short Experimental Study of Natural Convection Cooling of Vertical Cylinders with Inclined Plate Fins
title_sort experimental study of natural convection cooling of vertical cylinders with inclined plate fins
topic nusselt number
natural convection
inclined plate fin
url http://www.mdpi.com/1996-1073/9/6/391
work_keys_str_mv AT jongbumlee experimentalstudyofnaturalconvectioncoolingofverticalcylinderswithinclinedplatefins
AT hyunjungkim experimentalstudyofnaturalconvectioncoolingofverticalcylinderswithinclinedplatefins
AT dongkwonkim experimentalstudyofnaturalconvectioncoolingofverticalcylinderswithinclinedplatefins