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Experimental Investigation for Optimising Pin Fin Heat Sinks in Combined Natural and force Convection


Affiliations
1 Asst. Professor, JSPM’s Jayawantrao Sawant College of Engg., Pune-28, India
2 Asst. Professor, JSPM’s Rajarshi Shahu College of Engineering, Pune-33, India
3 Professor, JSPM’s Rajarshi Shahu College of Engineering, Pune-33, India
     

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Development of proper ways for thermal management of the electronic equipments is very essential due to miniaturization with semiconductor technology. Various active and passive cooling techniques can be used. Pin fin heat sinks are passive techniques. In this work, an experimental investigations are carried out for circular and rectangular uniform cross section pin fin heat sinks with horizontal and vertical orientation and in line and staggered arrangement. Various pitches considered were dimensionless transeverse pitch, ST = 2.2 to 8.8 and dimensionless longitudinal pitch SL=2.2 to 4.4, for inline and staggered arrangements. The results were obtained for the aspect ratio of 5 to 7.5. The velocity range was considered from 0.2m/s to 2.4m/s.

Keywords

Heat Sink, Pin Fins, Entropy Generation
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  • H. Kristiansen, 2001, “Thermal Management in Electronics”, Chalmers University of Technology, Sweden.

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  • Experimental Investigation for Optimising Pin Fin Heat Sinks in Combined Natural and force Convection

Abstract Views: 284  |  PDF Views: 0

Authors

S.M. Jadhav
Asst. Professor, JSPM’s Jayawantrao Sawant College of Engg., Pune-28, India
P. A. Deshmukh
Asst. Professor, JSPM’s Rajarshi Shahu College of Engineering, Pune-33, India
A.A. Pawar
Professor, JSPM’s Rajarshi Shahu College of Engineering, Pune-33, India

Abstract


Development of proper ways for thermal management of the electronic equipments is very essential due to miniaturization with semiconductor technology. Various active and passive cooling techniques can be used. Pin fin heat sinks are passive techniques. In this work, an experimental investigations are carried out for circular and rectangular uniform cross section pin fin heat sinks with horizontal and vertical orientation and in line and staggered arrangement. Various pitches considered were dimensionless transeverse pitch, ST = 2.2 to 8.8 and dimensionless longitudinal pitch SL=2.2 to 4.4, for inline and staggered arrangements. The results were obtained for the aspect ratio of 5 to 7.5. The velocity range was considered from 0.2m/s to 2.4m/s.

Keywords


Heat Sink, Pin Fins, Entropy Generation

References