D1514029420

Thermal Performance Improvement of a Fin-Arrayed Horizontal Heat Sink Corroborating Optimal Orientation Angle
Pabitra Kumar Mandal¹, Sayantan Sengupta², Subhas Chandra Rana³, Dipankar Bhanja^4
1Pabitra Kumar Mandal*, Department of Mechanical Engineering, Dr. B.C. Roy Engineering College, Durgapur, 713206 (W.B.), India Department of Mechanical Engineering, National Institute of Technology, Durgapur,  (W.B.), India.
²Sayantan Sengupta, Department of Mechanical Engineering, National Institute of Technology, Durgapur, (W.B.), India.
³Subhas Chandra Rana, Department of Mechanical Engineering, National Institute of Technology, Durgapur, 713209 (W.B.), India.
⁴Dipankar Bhanja, Department of Mechanical Engineering, National Institute of Technology, Silchar, (Assam), India.
Manuscript received on January 10, 2020. | Revised Manuscript received on January 22, 2020. | Manuscript published on February 10, 2020. | PP: 1067-1075 | Volume-9 Issue-4, February 2020. | Retrieval Number: D1514029420/2020©BEIESP | DOI: 10.35940/ijitee.D1514.029420
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The present study deals with a simple but effective technique for improving the forced convective cooling of a horizontal heat sink with vertical pin-fin-array. The pin fins are embedded in a staggered arrangement on the base-plate of the horizontal sink. Air, while passing through the fin-array, convects the heat conducted from the solid base-plate to the fins’ surface. The objective of this paper is to examine the role of the orientation angle (  ) on the performance of the heat sink.  is varied from  0 to  360 by rotating the horizontal sink about a vertical axis passing through the center of the sink. A detailed CFD (computational fluid dynamics) study is coordinated over a wide range of inflow Reynolds number ( Re ) to explore the possibility for obtaining an optimum orientation angle (  ) for which Nusselt number ( Nu ) would be the maximum. Results indicate that optimum angle hovers around    120 regardless of the values of Re . 
Keywords: Heat Sink, Performance, Staggered Fins, CFD, Orientation Angle.
Scope of the Article: Measurement & Performance Analysis