Kinetics of OH recombination in the post combustion zone of an atmospheric pressure hydrogen-oxygen flame

The OH radical concentration and rotational temperature were measured in a stoichiometric hydrogen-oxygen flame under atmospheric pressure using infrared emission spectra. A highly non-equilibrium OH concentration was observed in the post flame gases and the OH decay profile was consistent with a se...

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Bibliographic Details
Published in:International journal of hydrogen energy 1989, Vol.14 (9), p.677-680
Main Authors: Souche, I., Chatalic, A., Bregeon, B.G.
Format: Article
Language:English
Subjects:
Applied sciences
Combustion of gaseous fuels
Combustion. Flame
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Theoretical studies. Data and constants. Metering
Online Access:Get full text
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Summary:The OH radical concentration and rotational temperature were measured in a stoichiometric hydrogen-oxygen flame under atmospheric pressure using infrared emission spectra. A highly non-equilibrium OH concentration was observed in the post flame gases and the OH decay profile was consistent with a second order dependence on the OH concentration. The associated OH decay rate constant was found to be substantially lower than the predicted values from some flame models. It appears that diffusional transport may be partly responsible for these discrepancies.
ISSN:0360-3199
1879-3487
DOI:10.1016/0360-3199(89)90045-1