Performance of methanol kinetic mechanisms at oxy-fuel conditions

摘要: Methanol premixed flames were studied under oxy-fuel conditions for the first time. Laminar burning velocities measured with heat flux method at atmospheric pressure unburnt gas temperatures of 308-358 K within a stoichiometric range phi = 0.8-1.5. A linear relationship between temperature and laminar velocity on log-log scale was observed. The experimental results are discussed by comparison to modeling from three kinetic mechanisms. All models gave an overprediction velocity. It demonstrated that implementation recently advised rate constants reactions methanol O-2, HO2, H OH, together modification third-body efficiency H2O in decomposition formyl radical, significantly improves model performance both combustion air conditions. (C) 2014 Combustion Institute. Published Elsevier Inc. rights reserved. (Less)