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Article Dans Une Revue Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering Année : 1999

Combustion characterization of natural gas in a lean burn spark-ignition engine

Résumé

Lean burn natural gas fuelled spark-ignition engines are particularly attractive regarding environmental performance. Nevertheless, few data exist concerning lean combustion in gas engines in terms of ignition delay, combustion duration and combustion rate. Such data are necessary when using thermodynamic models to predict energy and environmental performance. The present study proposes a contribution to such combustion characterization as a function of spark timing, air excess and engine load. This work is based on experimental cylinder pressure measurements in an open chamber engine on the one hand, and on a one-zone thermodynamic model used as a heat release analysis tool on the other hand. Results obtained, such as mass fraction burned, ignition delay and combustion duration, allow identification of the parameters used in the Wiebe function, a semi-empirical law that is frequently used to describe the combustion in predictive models.

Dates et versions

hal-00935957 , version 1 (24-01-2014)

Identifiants

Citer

S Rousseau, Bernard Lemoult, Mohand Tazerout. Combustion characterization of natural gas in a lean burn spark-ignition engine. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 1999, 213 (D5), pp.481-489. ⟨10.1243/0954407991527044⟩. ⟨hal-00935957⟩
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