Abstract: A heat transfer device having a heat source for collecting waste heat from a heat-generating system, the heat transfer device having fins in which the shape of the sides of the fins is preferably circular according to the general expression ( x - 1 ? ) 2 + ( y - ? ? ) 2 = 1 ? 2 , where ? = h k , h is the heat transfer coefficient between the fin and the surrounding fluid, k is the thermal conductivity of the fin material, ? = q o k ? ? ? o , q o is the heat flow through the fin semi-base per unit depth and ?0 is the difference between the temperatures of the heated surface and the surrounding fluid.

Abstract: A heat transfer device having a heat source for collecting waste heat from a heat-generating system, the heat transfer device having fins in which the shape of the sides of the fins is preferably circular according to the general expression ( x - 1 ? ) 2 + ( y - ? ? ) 2 = 1 ? 2 , where ? = h k , h is the heat transfer coefficient between the fin and the surrounding fluid, k is the thermal conductivity of the fin material, ? = q o k ? ? ? ? o , q o is the heat flow through the fin semi-base per unit depth and ?0 is the difference between the temperatures of the heated surface and the surrounding fluid.