Comparison of laser-based flame species profile measurements with model predictions

Jeffrey S. Bernstein; Terrill A. Cool; Asa Fein; Jung B. Choi

doi:10.1117/12.171283

18 March 1994 Comparison of laser-based flame species profile measurements with model predictions

Jeffrey S. Bernstein, Terrill A. Cool, Asa Fein, Jung B. Choi

Author Affiliations +

Proceedings Volume 2122, Laser Applications in Combustion and Combustion Diagnostics II; (1994) https://doi.org/10.1117/12.171283
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

Resonance-enhanced multiphoton ionization and laser-induced fluorescence were used to obtain relative concentration measurements of six species in low-pressure stoichiometric hydrocarbon flame systems. Relative density profiles of O, H, OH, CH, HCO, and CH₃ were compared to model calculations for methane/oxygen, ethane/oxygen, and ethylene/oxygen flame systems. Good agreement between measured profiles and model predictions was found for the methane/oxygen system, allowing for the methane/oxygen system to be used as a standard of comparison by which relative concentration profiles of other hydrocarbon flame systems may be put on an absolute scale. With this approach, one finds that peak HCO densities in the ethane/oxygen and ethylene/oxygen systems appear to be over estimated by current model predictions of C₁ and C₂ chemistry.

Citation Download Citation

Jeffrey S. Bernstein, Jeffrey S. Bernstein, Terrill A. Cool, Terrill A. Cool, Asa Fein, Asa Fein, Jung B. Choi, Jung B. Choi, "Comparison of laser-based flame species profile measurements with model predictions", Proc. SPIE 2122, Laser Applications in Combustion and Combustion Diagnostics II, (18 March 1994); doi: 10.1117/12.171283; https://doi.org/10.1117/12.171283

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