Resumo

HANSEN, A. C.. A quasi-dimensional model of heat transfer applied to a diesel engine. R&D j. (Matieland, Online) [online]. 1993, vol.9, pp.22-31. ISSN 2309-8988.

Heat transfer from the combustion chamber of a diesel engine is due to conduction, convection and radiation, each component making a significant contribution to the total heat loss. The main objective of this research was to develop a heat transfer model that included all three modes of heat transfer and that was more physically based than existing zero-dimensional models thereby providing a more accurate foundation for evaluating the combustion and resulting thermal stresses generated in direct injection diesel engines. Results from fired engine tests showed that the model generated combined heat transfer rates that were credible not only on a global basis but also in terms of point predictions in the combustion chamber.

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