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Heat Transfer Augmentation of Air Cooled Internal Combustion Engine Using Fins through Numerical Techniques

Author Affiliations

  • 1 School of Mechanical and Building Sciences, VIT University, Vellore– 632 014, Tamil Nadu, INDIA

Res. J. Engineering Sci., Volume 1, Issue (2), Pages 32-40, August,26 (2012)

Abstract

Fins are basically mechanical structures which are used to cool various structures via the process of convection. Most part of their design is basically limited by the design of the system. But still certain parameters and geometry could be modified to better heat transfer. In most of the cases simple fin geometry is preferred such as rectangular fins and circular fins. Many experimental works has been done to improve the heat release of the internal combustion engine cylinder and fin efficiency. A numerical investigation has been carried for a finned metal cylinder using CFD and is validated against the experiments carried out. A transient numerical analysis is carried out with wall cylinder temperature of 423 K initially and the heat release from the cylinder is analyzed for zero wind velocity. The heat release from the cylinder which is calculated numerically is validated with the experimental results. In the present paper an effort is made to study the effect of fin parameters on fin array performance which includes variation in pitch and fin material. In addition, the current paper considers the effect of air flow velocity on different fin pitch. With the help of the available numerical results, the design of the internal combustion engine cooling fins can be altered for better efficiency.

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