Experimental and numerical studies of the orientation effect on the natural convection heat dissipation of composite polymer heat sinks

Peng, Da, Khatamifar, Mehdi, and Lin, Wenxian (2022) Experimental and numerical studies of the orientation effect on the natural convection heat dissipation of composite polymer heat sinks. Journal of Enhanced Heat Transfer, 29 (6). pp. 1-26.

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Abstract

Recent advances in manufacturing technologies and new composite materials for additive manufacturing created new opportunities for the novel heat sink made of heat-dissipating nonmetallic materials. In this study, two commercially available thermal conductive filaments (copper filled filament and Ice9 Flex filament) from two main groups of metal filled and carbon filled thermal conductive composites were characterised and used for 3D printing of heat sinks. The possibility and the performance of using the selected commercial composite polymers for applications in electronics cooling was experimentally and numerically investigated. Due to the possibility of change in the angle of position of electronics, two different orientation angles (rotation about the x and z-axes) for angles of 0º-90º with 10º increment was studied. It was found that carbon filled filament heat sink at 90º for rotation about the x-axis had the best heat dissipation performance (about 28% higher than 0º). This case also showed the lowest average base temperature of all cases studied. The rotation about the z-axis was showed to weaken the thermal performance of all heat sinks due to limiting airflow between fins.

Item ID: 71436
Item Type: Article (Research - C1)
ISSN: 1563-5074
Keywords: Thermally conductive polymer; heat sink; orientation angle; heat dissipation ; natural convection
Copyright Information: © BEGELL HOUSE Inc. 2022.
Date Deposited: 02 Jun 2022 03:43
FoR Codes: 40 ENGINEERING > 4012 Fluid mechanics and thermal engineering > 401205 Experimental methods in fluid flow, heat and mass transfer @ 35%
40 ENGINEERING > 4012 Fluid mechanics and thermal engineering > 401204 Computational methods in fluid flow, heat and mass transfer (incl. computational fluid dynamics) @ 35%
40 ENGINEERING > 4014 Manufacturing engineering > 401401 Additive manufacturing @ 30%
SEO Codes: 17 ENERGY > 1703 Energy storage, distribution and supply > 170305 Energy systems and analysis @ 50%
17 ENERGY > 1701 Energy efficiency > 170102 Industrial energy efficiency @ 50%
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