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Thermal and Flow Analysis of Split Drop-Shaped Pin Fins for Improved Heat Transfer Rate

  • Alok Ranjan
  • Surendra Singh Yadav
  • Koushik DasEmail author
Original Contribution
  • 4 Downloads

Abstract

Proper dissipation of thermal energy has always been a requirement for better efficiency of a system. Fins provide additional surfaces to reject heat to the surrounding from the working faces. The current work considers the thermal analysis of pin fins of circular and drop-shaped cross section. Fins of uniform cross section are placed over a base plate arranged in a staggered manner. With an analysis of various thermal and flow parameters, the drop-shaped pin fin is found to yield a better thermal enhancement over cylindrical pin fins. Further, the drop-shaped fins are modified to make a split to enhance the interaction between the fluid and the fin surface. The modification shows slightly better result compared to existing drop-shaped fin. The modelling has been done using ANSYS FLUENT 17.1.

Keywords

Extended surfaces Nusselt number Heat transfer coefficient Finite volume method 

Notes

References

  1. 1.
    M. Eren, S. Caliskan, Effect of grooves pin-fin in a rectangular channel on heat transfer augmentation and friction factor using Taguchi method. Int. J. Heat. Mass. Transf. 102, 1108–1122 (2016)CrossRefGoogle Scholar
  2. 2.
    M.M. Fyrillas, T. Leontiou, Critical Biot number of a periodic array of rectangular fins. J. Heat Transf. 138, 1 (2015)Google Scholar
  3. 3.
    T.M. Jeng, S.C. Tzeng, Pressure drop and heat transfer of square pin-fin arrays in in-line and staggered arrangements. Int. J. Heat Mass Transf. 50, 2364–2375 (2007)CrossRefGoogle Scholar
  4. 4.
    Y. Jooa, S.J. Kim, Comparison of thermal performance between plate and pin fin heat sink in natural convection. Int. J. Heat Mass Transf. 83, 345–356 (2015)CrossRefGoogle Scholar
  5. 5.
    D.K. Kim, H.J. Kim, M. Lee, Nusselt number correlation for natural convection from vertical cylinders with triangular fins. Appl. Therm. Eng. 107, 768–775 (2016)CrossRefGoogle Scholar
  6. 6.
    W.A. Khan, J.R. Culham, M.M. Yovanovich, Modelling of cylindrical pin-fin heat sinks for electronic packaging. IEEE Trans. Compon. Packag. Technol. 31–3, 1521–3331 (2008)Google Scholar
  7. 7.
    H.S. Kang, Optimization of a pin fin with variable base thickness. Int. J. Heat Transf. 132, 345 (2009)Google Scholar
  8. 8.
    R. Yakut, K. Yakut, F. Yesildal, A. Karabey, Experimental and Numerical Investigations of Impingement Air Jet for a Heat Sink. Procardia Eng. 157, 3–12 (2016)CrossRefGoogle Scholar
  9. 9.
    F. Wang, J. Zhang, S. Wang, Investigation on flows and heat transfer characteristics in rectangular channel with drop shape pin fins. Propuls. Power Res. 1, 64–70 (2012)CrossRefGoogle Scholar
  10. 10.
    K. Horiuchi, A. Nishihara, K. Sugimura, Multi-objective optimization of water-cooled pin-fin heat sinks. Int. J. Heat Mass Transf. 81, 760–766 (2015)CrossRefGoogle Scholar

Copyright information

© The Institution of Engineers (India) 2019

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringNational Institute of Technology MeghalayaShillongIndia

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