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Analysis of Wavelength Modulation Spectra for Determination of OH Radical Concentration in an Atmospheric Pressure Laminar Premixed Flames
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SYSNO ASEP 0540821 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Analysis of Wavelength Modulation Spectra for Determination of OH Radical Concentration in an Atmospheric Pressure Laminar Premixed Flames Author(s) Nevrlý, V. (CZ)
Bitala, P. (CZ)
Klečka, V. (CZ)
Vašinek, M. (CZ)
Zelinger, Zdeněk (UFCH-W) RID, ORCID
Suchánek, Jan (UFCH-W) RID, ORCID
Dostál, Michal (UFCH-W) RID, ORCID, SAI
Válek, V. (CZ)Article number 012046 Source Title Journal of Physics: Conference Series, Vol. 1829. - Bristol : IOPScience, 2019 - ISSN 1742-6588 Number of pages 3 s. Publication form Print - P Action International Conference on Spectral Lines Shapes Event date 18.06.2018 - 22.06.2018 VEvent location Dublin Country IE - Ireland Event type WRD Language eng - English Country GB - United Kingdom Keywords Tunable Lasers ; Absorption Spectroscopy ; Trace Gas Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry R&D Projects LTC17071 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UFCH-W - RVO:61388955 EID SCOPUS 85052110523 DOI 10.1088/1742-6596/1289/1/012046 Annotation 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. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2021
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