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

Jong Bum Lee, Hyun Jung Kim and Dong-Kwon Kim
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Jong Bum Lee: Department of Mechanical Engineering, Ajou University, Suwon 443-749, Korea
Hyun Jung Kim: Department of Mechanical Engineering, Ajou University, Suwon 443-749, Korea
Dong-Kwon Kim: Department of Mechanical Engineering, Ajou University, Suwon 443-749, Korea

Energies, 2016, vol. 9, issue 6, 1-15

Abstract: 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.

Keywords: nusselt number; natural convection; inclined plate fin (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2016
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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