Number of the records: 1
Hydroxyl radical measurement in atmospheric pressure dimethyl ether-air laminar premixed flat flame using tunable diode laser absorption spectroscopy
- 1.
SYSNO ASEP 0486044 Document Type C - Proceedings Paper (int. conf.) R&D Document Type The record was not marked in the RIV Title Hydroxyl radical measurement in atmospheric pressure dimethyl ether-air laminar premixed flat flame using tunable diode laser absorption spectroscopy Author(s) 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)Source Title 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. Number of pages 4 s. Publication form Print - P Action General Meeting and Workshop on SECs in Industry /3./ Event date 25.10.2017 - 27.10.2017 VEvent location Prague Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords spectroscopy ; tunable diode laser absorption spectroscopy ; hydroxyl Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects LTC17071 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA17-05167s GA ČR - Czech Science Foundation (CSF) Institutional support UFCH-W - RVO:61388955 Annotation 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.Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2018
Number of the records: 1