Raman spectroscopic study of a laminar hydrogen diffusion flame in air

Spontaneous Raman spectroscopy has been employed for time-averaged, spatially-resolved measurements of temperature and species concentration in an axisymmetric, laminar hydrogen diffusion flame in quiescent air. Temperatures were obtained from vibrational Q-branch raman spectra of N 2, O 2, and H 2...

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Bibliographic Details
Published in:Journal of quantitative spectroscopy & radiative transfer 1979-01, Vol.21 (4), p.293-307
Main Authors: Aeschliman, D.P., Cummings, J.C., Hill, R.A.
Format: Article
Language:English
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Summary:Spontaneous Raman spectroscopy has been employed for time-averaged, spatially-resolved measurements of temperature and species concentration in an axisymmetric, laminar hydrogen diffusion flame in quiescent air. Temperatures were obtained from vibrational Q-branch raman spectra of N 2, O 2, and H 2 and the rotational Raman spectra of N 2 and H 2, and concentrations of H 2, and N 2 were determined. The results are compared to existing numerical nonequilibrium calculations for the conditions of this experiment. Significant differences between experimental and predicted temperature and concentration profiles are observed. In particular, the flame is larger in both diameter and length and the flame zone is thicker than predicted. Some possible sources of the discrepancies are discussed.
ISSN:0022-4073
1879-1352
DOI:10.1016/0022-4073(79)90061-X