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

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

Applied Energy, 1989, vol. 34, issue 3, 191 pages

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]

Date: 1989
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