Experimental Analysis between Rectangular Solid Fins with Different Circular Perforated Rectangular Fins under Natural Convection

Abstract

The heat transfer rate from a solid horizontalrectangular fin and fins with of same geometrical dimension embedded with different number of same circular perforations under natural convection is numerically investigated. The parameters considered in this investigation are the geometrical dimension of fins, perforationdimension of fins with different number of same circular perforation. A comparison between heat transfer rates of the solid fin with different number of the circular perforated finsis presented. It is found that the heat transfer rate of solid horizontal rectangular fin is low as compared to different number of circular perforated fin and the lateral spacing between perforation decreases which increases heat transfer coefficient. Here in this experimental analysis of fins we compute the three different value of heat transfer coefficient lies on three different places first one is on flat perforated surface h ps ,second one is on fin tip h t , thirdly at inner perforated surface of perforation h pc , here (h ps ≠h pc ≠h t) for computing the value of total heat transfer rate of each fin to get the overall effectiveness of the fin. The problem of this study was numerically solved and results are plotted through mat lab software.