The heat transfer from cylinder to air of a two-stroke internal combustion finned engine has been simulated. For this purpose, a 2D model of the block and head has been done. Starting from the geometry of a real engine, annular cylindrical and spherical symmetric walls to fins has been used to obtain an equivalent simplified geometry, where the heat transfer rate is the same as that in the real engine. The cylinder body, cylinder head (both provided with fins), and piston have been numerically analyzed and optimized in order to minimize engine dimensions. The maximum temperature admissible at the hottest point of the engine has been adopted as the limiting condition. An engine temperature map has been presented as additional information. Cyclically variable inner cylinder conditions (thermodynamic, thermal, and chemical) proceed from a previous work; convective and radiative inner boundary conditions and convective external conditions have also been taken into account in this work. A network simulation model has been used as the numerical tool in the analysis presented.
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December 2010
Research Papers
Optimization of Annular Cylindrical and Spherical Fins in an Internal Combustion Engine Under Realistic Conditions
Fernando Illán,
Fernando Illán
Universidad Politécnica de Cartagena
, 30202, Cartagena, Spain
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Mariano Alarcón
Mariano Alarcón
Universidad de Murcia
, 30071, Murcia, Spain
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Fernando Illán
Universidad Politécnica de Cartagena
, 30202, Cartagena, Spain
Mariano Alarcón
Universidad de Murcia
, 30071, Murcia, SpainJ. Thermal Sci. Eng. Appl. Dec 2010, 2(4): 041002 (7 pages)
Published Online: January 13, 2011
Article history
Received:
September 9, 2010
Revised:
December 2, 2010
Online:
January 13, 2011
Published:
January 13, 2011
Citation
Illán, F., and Alarcón, M. (January 13, 2011). "Optimization of Annular Cylindrical and Spherical Fins in an Internal Combustion Engine Under Realistic Conditions." ASME. J. Thermal Sci. Eng. Appl. December 2010; 2(4): 041002. https://doi.org/10.1115/1.4003237
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