Experimental Investigation of Jet Impingement Cooling On a Ribbed Surface with Holes

摘要

Jet impingement has found applications in many processes where there is a need for higher heat transfer The paper reports the results of experimental investigations of the flow and heat transfer from a triangular ribbed heated plate with holes, impinged by a round jet in a confined case built around the plate. The parameters varied are heat flux, ratio of the distance of the nozzle from the plate to the diameter of t he nozzle and flow rate o f air. These values are further processed to calculate the Reynolds number, heat transfer coefficients and consequently the N usselt numbers for each combination