Experimental study of forced convective heat transfer in a different arranged corrugated channel

Abstract

In this study, heat transfer rate for sinusoidal corrugated channel has been experimentally investigated. Three different type sharp corrugation peak fins and a plain surface were used in the experiment. Results were carried out for constant heat flux of 616 W/m(2), varied Reynolds number Re 1500 to 8000 for the corrugation angle (27, 50 and 22/60 degrees) and channel height of 5 and 10 mm. Nusselt number (Nu), convection heat transfer coefficient (h), Colburn factor (j) and enhancement ratio (E) against Reynolds number (Re) have been studied. The effects of the wavy geometry and channel height have been discussed. The increase of corrugated angle gave rise to a heat transfer rate. (c) 2013 Elsevier Ltd. All rights reserved.