Algorithmic Identification of the Reactions Related to the Initial Development of the Time Scale That Characterizes CH4/Air Autoignition

作者: Dimitris M. Manias , Dimitris J. Diamantis , Dimitris A. Goussis

DOI: 10.1061/(ASCE)EY.1943-7897.0000249

关键词: Scale (ratio)ThermodynamicsHomogeneousChemistrySingular perturbationStoichiometryAutoignition temperature

摘要: AbstractThe reactions responsible for the initial development of time scale that characterizes autoignition a homogeneous stoichiometric CH4/air mixture are identified algorithmically using computational singular perturbation method. The analysis considers wide range temperatures and pressures, located below above explosion limit. major role CH3+O2→CH3O+O (at high temperatures), CH3+O2→CH2O+OH low CH2O+O2→HCO+HO2 intermediate temperatures) is identified. results provide some additional insights regarding significance to initiation process generally considered become active at later times.

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