Natural Convection Heat Transfer from Symmetrical Triangular Fin Arrays on Vertical Surface

This paper deals with study of heat transfer characteristics of natural convection heat flow through vertical symmetrical triangular fin arrays. It was studied experimentally and its results were compared with equivalent rectangular fin arrays. In the experimental arrangement, spacing between fins was varied. Results were generated for S + = 0.015, 0.03, 0.045 & 0.105 and Gr H =2*10 7 to 5*10 7 . Average, base Nusselt number and Grashof number were calculated. It was observed that with increase in Grashof number, average and base Nusselt number increases. Similarly average Nusselt number increases with spacing whereas base Nusselt number increases to maximum value with spacing and then decreases [11].