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DOI: 10.1615/ICHMT.2008.CHT.1370
page 14

Seloua Kabar
LEAP Laboratory, Département de Génie Mécanique, Université Mentouri Constantine, Algeria


In order to minimise the planet heating observed these last years, many studies have been undertaken on the different factors responsible for this atmospheric pollution, among which are the physical and chemical phenomena occurring in combustion. In order to diminish the polluting gases emanating from I.C. engines, the idea is to lower fuel consumption while maintaining the engine performances. In this context, we numerically calculated the concentration of different polluting species (CO, CO2, HC and NO) by using the commercial programme KIVA2 for four fuels (DF2,C8H18,C7H16, and C14H13) in a direct injection Diesel engine of type CMT/FL912. The Zeldovich chemical reactions for the formation of NO, the global fuel oxidation reaction and the equilibrium reactions contributing to the formation of pollutants have been introduced. A comparison of polluting species of various fuels obtained after combustion, is presented.

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