Document Type : Research Paper


1 Power Engineering Department, University of Polytechnic-Duhok, Duhok, Iraq

2 Mechanical Engineering Department, College of Engineering, University of Duhok, Duhok, Iraq


The current work explores a trial forced convective heat move from rectangular blades on an upward surface at low Reynolds numbers. The heat removal for a proper number of punctured and non-punctured fins, fin dividing, and length was estimated in an upward air stream for fluctuating inlet air speed and some way or another low info heat power somewhere in the range of 20W and 70W. The characteristics are investigated for rectangular, circular, and V-shape perforated fin array against non-perforated one. The impact of different boundaries, like heat input with various liquid stream speed on average coefficient of heat transfer (h) improvement has been considered. The impact of the Nusselt numberand Reynolds number, were practically examined. The heat loss has been improved by increasing the heat transfer coefficient between the fin total surface and its encompassing, through increasing the area of heat to remove all out surface through fin perforations. The trial relations have been differentiated by correlating Nu and Re for non-punctured plate heat sink, the reach 6*103 £ Re £ 19*103, and Pr @ 0.7 with error ±7%, and punctured finned plate heat sink with the reach 6*103 £ Re £ 20*103, and Pr @ 0.7 with a deviation factor R2=0.995.


Main Subjects

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