Comparison of Fuel-NOxFormation Characteristics in Conventional Air and Oxyfuel Combustion Conditions

摘要: Nitric oxide () formation characteristics in non-premixed diffusion flames of methane fuels have been investigated experimentally and numerically by adding 10% ammonia to the fuel stream, according variation oxygen ratio oxidizer with oxygen/carbon dioxide oxygen/nitrogen mixtures. In an experiment coflow jet flames, case dioxide, emission increased slightly as increased. On other hand, oxidizer, was maximum at 0.7, it exhibited non-monotonic behavior ratio. Consequently, condition oxyfuel combustion overestimated compared that conventional air combustion. To elucidate for various compositions, 1D 2D numerical simulations conducted adopting one kinetic mechanism. The result simulation well predicted trend measured emissions.