This work presents a numerical study of the thermal and hydrodynamic behavior of a pin-fin heat sink where deflectors are placed along the flow of the coolant air; the effect of the arrangement of the fins and deflectors in the global performance of the heat sink is investigated. The fin geometry analyzed is rectangular, and the arrangement of the fins is inline. The heat sink is placed in a channel in which air flows, and a constant heat flux is applied at the bottom wall of the heat sink with values equivalent to the heat fluxes generated by current electronic devices. Deflectors are placed in the top of the channel in order to drive the air flow into the front and end of the heat sink. The results for the Nusselt number and for the pressure drop along the heat sink are reported. The best dimension of deflectors and pitch for the arrangement based on the thermal and hydraulic performance is attained.
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ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis
July 2–4, 2012
Nantes, France
Conference Sponsors:
- International
ISBN:
978-0-7918-4485-4
PROCEEDINGS PAPER
Implementations of Deflectors to Improve the Performance of Heat Sinks
J. P. Ramirez-Vazquez,
J. P. Ramirez-Vazquez
Universidad de Guanajuato, Salamanca, GUA, Mexico
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A. Hernandez-Guerrero,
A. Hernandez-Guerrero
Universidad de Guanajuato, Salamanca, GUA, Mexico
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J. L. Zuñiga-Cerroblanco,
J. L. Zuñiga-Cerroblanco
Universidad de Guanajuato, Salamanca, GUA, Mexico
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J. C. Rubio-Arana
J. C. Rubio-Arana
Universidad de Guanajuato, Salamanca, GUA, Mexico
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J. P. Ramirez-Vazquez
Universidad de Guanajuato, Salamanca, GUA, Mexico
A. Hernandez-Guerrero
Universidad de Guanajuato, Salamanca, GUA, Mexico
J. L. Zuñiga-Cerroblanco
Universidad de Guanajuato, Salamanca, GUA, Mexico
J. C. Rubio-Arana
Universidad de Guanajuato, Salamanca, GUA, Mexico
Paper No:
ESDA2012-82599, pp. 693-698; 6 pages
Published Online:
August 12, 2013
Citation
Ramirez-Vazquez, JP, Hernandez-Guerrero, A, Zuñiga-Cerroblanco, JL, & Rubio-Arana, JC. "Implementations of Deflectors to Improve the Performance of Heat Sinks." Proceedings of the ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. Volume 2: Applied Fluid Mechanics; Electromechanical Systems and Mechatronics; Advanced Energy Systems; Thermal Engineering; Human Factors and Cognitive Engineering. Nantes, France. July 2–4, 2012. pp. 693-698. ASME. https://doi.org/10.1115/ESDA2012-82599
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