Theoretical analysis of NO formation near the primary reaction zone in methane combustion

Journal Article · Sun Feb 01 04:00:00 EST 1976 · Combust. Flame; (United States)

DOI:https://doi.org/10.1016/0010-2180(76)90052-3· OSTI ID:7351977

Ay, J H; Sichel, M

The complete kinetics of the CH/sub 4/--air reaction are used to study the details of NO formation near the primary reaction zone. The species and energy conservation equations are used in the analysis, however, diffusion and heat conduction within the reaction zone are neglected. The overshoot of the concentrations of the radicals, O, OH, and H over their post flame values appears to explain the phenomenon of ''prompt NO'' due to the very high NO formation rate near the flame for values of the equivalence ratio phi less than 1.1. The effects of flame parameters on this radical overshoot are investigated. In addition, the results of the equilibrium theory, which has been used by previous authors to compute NO formation, have been compared in the detailed kinetic calculations. Computations with and without HO/sub 2/ reactions, which may influence NO production through their effect on radical recombination, were compared.

• Research Organization: Univ. of Michigan, Ann Arbor
• OSTI ID: 7351977
• Journal Information: Combust. Flame; (United States), Journal Name: Combust. Flame; (United States) Vol. 26:1; ISSN CBFMA
• Country of Publication: United States
• Language: English

Related Subjects

090110* -- Hydrocarbon Fuels-- Properties-- (1979-1989)
10 SYNTHETIC FUELS
ALKANES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION PRODUCTS
CRYOGENIC FLUIDS
FLUIDS
HYDROCARBONS
KINETICS
METHANE
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
RADICALS
REACTION KINETICS