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

Author

Listed:
  • 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)

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.

Suggested Citation

  • Jong Bum Lee & Hyun Jung Kim & Dong-Kwon Kim, 2016. "Experimental Study of Natural Convection Cooling of Vertical Cylinders with Inclined Plate Fins," Energies, MDPI, vol. 9(6), pages 1-15, May.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:6:p:391-:d:70687
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    Cited by:

    1. Jin-Cherng Shyu & Tsuni Chang & Shun-Ching Lee, 2017. "A Numerical Study on Natural Convection Heat Transfer of Handheld Projectors with a Fin Array," Energies, MDPI, vol. 10(3), pages 1-17, February.

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