Formation and consumption of NO in H{sub 2} + O{sub 2} + N{sub 2} flames doped with NO or NH{sub 3} at atmospheric pressure

Journal Article · Mon Mar 15 04:00:00 EDT 2010 · Combustion and Flame

DOI:https://doi.org/10.1016/J.COMBUSTFLAME.2009.10.008· OSTI ID:21285642

Shmakov, A G; Chernov, A A; Knyazkov, D A; Bolshova, T A ^[1]; Korobeinichev, O P; Rybitskaya, I V ^[1]; Konnov, A A ^[2]

---

1. Institute of Chemical Kinetics and Combustion, Novosibirsk (Russian Federation)
2. Division of Combustion Physics, Lund University, Lund (Sweden)

Flat premixed burner-stabilized H{sub 2} + O{sub 2} + N{sub 2} flames, neat or doped with 300-1000 ppm of NO or NH{sub 3}, were studied experimentally using molecular-beam mass-spectrometry and simulated numerically. Spatial profiles of temperature and concentrations of stable species, H{sub 2}, O{sub 2}, H{sub 2}O, NO, NH{sub 3}, and of H and OH radicals obtained at atmospheric pressure in lean ({phi} = 0.47), near-stoichiometric ({phi} = 1.1) and rich ({phi} = 2.0) flames are reported. Good agreement between measured and calculated structure of lean and near-stoichiometric flames was found. Significant discrepancy between simulated and measured profiles of NO concentration was observed in the rich flames. Sensitivity and reaction path analyses revealed reactions responsible for the discrepancy. Modification to the model was proposed to improve an overall agreement with the experiment. (author)

• OSTI ID: 21285642
• Journal Information: Combustion and Flame, Journal Name: Combustion and Flame Journal Issue: 3 Vol. 157; ISSN CBFMAO; ISSN 0010-2180
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
AMMONIA
ATMOSPHERIC PRESSURE
BURNERS
COMBUSTION KINETICS
COMPUTERIZED SIMULATION
DOPED MATERIALS
FLAMES
Flame structure
HYDROGEN
HYDROXYL RADICALS
MATHEMATICAL MODELS
MODIFICATIONS
Molecular-beam mass spectrometry
NITRIC OXIDE
NITROGEN
OXYGEN
SENSITIVITY ANALYSIS
TEMPERATURE DISTRIBUTION
TEMPERATURE RANGE 1000-4000 K
WATER