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Steady-state free-convective cooling of heat exchangers with vertical rectangular fins: Effect of fin material

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  • Ko, Y. M.
  • Leung, C. W.
  • Probert, S. D.

Abstract

The steady-state rates of heat dissipation from an array of stainless-steel, vertical rectangular fins, under natural-convection conditions, have been measured experimentally when their base (which was either vertical or horizontal) was maintained at a uniform temperature of 20 or 40 K above that of the ambient environment. The fins were 3 mm thick and 500 mm long, and protruded 60 mm perpendicularly from the 500 mm x 190 mm rectangular base. For the vertically-based finned system, the optimal fin-separation Sopt corresponding to the maximum rate of heat loss to the ambient air was 12 ± 1 mm and remained almost invariant with respect to changes of the temperature excess [theta] above that of the ambient environment, for [theta]

Suggested Citation

  • Ko, Y. M. & Leung, C. W. & Probert, S. D., 1989. "Steady-state free-convective cooling of heat exchangers with vertical rectangular fins: Effect of fin material," Applied Energy, Elsevier, vol. 34(3), pages 181-191.
    • Handle: RePEc:eee:appene:v:34:y:1989:i:3:p:181-191
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    Cited by:

    1. Leung, C. W. & Probert, S. D., 1997. "Heat-exchanger performance: Influence of gap width between consecutive vertical rectangular fin-arrays," Applied Energy, Elsevier, vol. 56(1), pages 1-8, January.

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