Abstract
A detailed, chemical mechanism has been compiled for modeling the combustion of C 1–C 3 hydrocarbon-nitrous oxide mixtures. The compiled, chemical mechanism has been compared and validated against available data in the literature, including flame structure measurements of hydrogen-nitrous oxide and ammonia-nitrous oxide flames, flow reactor data on hydrogen-nitrous oxide and moist, nitrous oxide decomposition mixtures, shock tube ignition delay data on hydrogen- and methane-nitrous oxide mixtures, experimental flame speed data on carbon monoxide-nitrous oxide mixtures, and experimental, laminar flame speed data for hydrogen-, methane-, acetylene-, and propane-nitrous oxide mixtures. Feature sensitivity studies and reaction path analyses have been employed to elucidate important pathways to the overall reaction rate for these systems, and include the nitrous oxide decomposition step (N 2 O(+M) ⇌ N 2 + O(+M)) and nitrous oxide reactions with H atoms (N 2 O + H ⇌ N 2 + OH and N 2 O + H ⇌ NH + NO). Modifications to the compiled mechanism were considered on the basis of the most sensitive reactions with the highest apparent rate constant uncertainty, to closely predict the various experimental data considered.
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