Chemical Kinetic Modeling of the Oxidation of Unburned Hydrocarbons

Paper #:
  • 922235

Published:
  • 1992-10-01
Citation:
Tamura, T. and Hochgreb, S., "Chemical Kinetic Modeling of the Oxidation of Unburned Hydrocarbons," SAE Technical Paper 922235, 1992, https://doi.org/10.4271/922235.
Pages:
9
Abstract:
The chemistry of unburned hydrocarbon oxidation in SI engine exhaust was modeled as a function of temperature and concentration of unburned gas for lean and rich mixtures. Detailed chemical kinetic mechanisms were used to model isothermal reactions of unburned fuel/air mixture in an environment of burned gases at atmospheric pressure. Simulations were performed using five pure fuels (methane, ethane, propane, n-butane and toluene) for which chemical kinetic mechanisms and steady state hydrocarbon (HC) emissions data were available. A correlation is seen between reaction rates and HC emissions for different fuels. Calculated relative amounts of intermediate oxidation products are shown to be consistent with experimental measurements.
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