Počet záznamů: 1
Hydroxyl radical measurement in atmospheric pressure dimethyl ether-air laminar premixed flat flame using tunable diode laser absorption spectroscopy
- 1.
SYSNO ASEP 0486044 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV Záznam nebyl označen do RIV Název Hydroxyl radical measurement in atmospheric pressure dimethyl ether-air laminar premixed flat flame using tunable diode laser absorption spectroscopy Tvůrce(i) Nevrlý, V. (CZ)
Dostál, Michal (UFCH-W) RID, ORCID, SAI
Bitala, P. (CZ)
Zelinger, Zdeněk (UFCH-W) RID, ORCID
Suchánek, Jan (UFCH-W) RID, ORCID
Válek, V. (CZ)
Klečka, V. (CZ)
Kubát, Pavel (UFCH-W) RID, ORCID, SAI
Engst, Pavel (UFCH-W)
Vašinek, M. (CZ)
Wild, J. (CZ)Zdroj.dok. 3rd General Meeting and Workshop on SECs in Industry. Scientific Programm. - Prague : J. Heyrovsky Institute of Physical Chemistry of the AS CR in Prague, 2017 / Zelinger Z. Poč.str. 4 s. Forma vydání Tištěná - P Akce General Meeting and Workshop on SECs in Industry /3./ Datum konání 25.10.2017 - 27.10.2017 Místo konání Prague Země CZ - Česká republika Typ akce EUR Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova spectroscopy ; tunable diode laser absorption spectroscopy ; hydroxyl Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP LTC17071 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GA17-05167s GA ČR - Grantová agentura ČR Institucionální podpora UFCH-W - RVO:61388955 Anotace Spectroscopic detection of hydroxyl (OH) radical and determination of its concentration in flames have an elusive history and considerable influence on combustion research. Electronic transitions in ultraviolet spectral region were extensively studied in this context and until recent time chemiluminescence or laser induced fluorescence of excited hydroxyl (OH*) radical is broadly used for absolute concentration and temperature measurement in flames.
However, number densities of molecular species and population of relevant quantum levels in ground electronic state can be directly estimated from intensities of absorption lines observed by probing rovibrational transitions in infrared spectral region. Application of near-infrared tunable diode laser absorption spectroscopy (NIR-TDLAS) for the given purpose was demonstrated in an earlier work of Aizawa et al. [1]. Following his pioneering studies summarized in [2], we further explored feasibility of NIR-TDLAS (especially 2f-WMS technique) for monitoring minor species within combustion experiments particularly when dealing with dimethyl ether (DME) flames. Here we report our first results of NIR-TDLAS measurements focused on hydroxyl radical detection in laminar premixed flame burning DME-air mixture under fuel-lean conditions.Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2018
Počet záznamů: 1