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Analysis of Wavelength Modulation Spectra for Determination of OH Radical Concentration in an Atmospheric Pressure Laminar Premixed Flames
- 1.0540821 - ÚFCH JH 2021 RIV GB eng C - Conference Paper (international conference)
Nevrlý, V. - Bitala, P. - Klečka, V. - Vašinek, M. - Zelinger, Zdeněk - Suchánek, Jan - Dostál, Michal - Válek, V.
Analysis of Wavelength Modulation Spectra for Determination of OH Radical Concentration in an Atmospheric Pressure Laminar Premixed Flames.
Journal of Physics: Conference Series. Vol. 1829. Bristol: IOPScience, 2019, č. článku 012046. ISSN 1742-6588.
[International Conference on Spectral Lines Shapes. Dublin (IE), 18.06.2018-22.06.2018]
R&D Projects: GA MŠMT(CZ) LTC17071
Grant - others:European Cooperation in Science & Technology(XE) CM1404
Institutional support: RVO:61388955
Keywords : Tunable Lasers * Absorption Spectroscopy * Trace Gas
OECD category: Physical chemistry
This work is aimed at the application of wavelength modulation spectroscopy with the second harmonic detection for determination of OH radical concentration in laminar premixed flames of methane-air mixtures. Several hot water lines and two overtone OH transitions were identified in high-resolution absorption spectra measured in our experimental setup. Information on spectral line-shape parameters for selected OH transitions were extracted from the experimental data using relevant methods and approximations. An appropriate line-shape model was finally implemented into an automated least-square fitting procedure in order to quantify the local mole fraction of OH radical in an atmospheric pressure flames.
Permanent Link: http://hdl.handle.net/11104/0318418
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