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Electron Temperature Measurement in a Premixed Flat Flame Using the Double Probe Method
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SYSNO ASEP 0385233 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Electron Temperature Measurement in a Premixed Flat Flame Using the Double Probe Method Author(s) Wild, J. (CZ)
Kudrna, P. (CZ)
Tichý, M. (CZ)
Nevrlý, V. (CZ)
Střižík, M. (CZ)
Bitala, P. (CZ)
Filipi, B. (CZ)
Zelinger, Zdeněk (UFCH-W) RID, ORCIDSource Title Contributions to Plasma Physics. - : Wiley - ISSN 0863-1042
Roč. 52, č. 8 (2012), s. 692-698Number of pages 7 s. Language eng - English Country DE - Germany Keywords double probe method ; electron temperature ; atmospheric premixed flame Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GAP108/11/1312 GA ČR - Czech Science Foundation (CSF) LD12020 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UFCH-W - RVO:61388955 UT WOS 000309184700004 DOI 10.1002/ctpp.201200005 Annotation The electron temperatures T-e were measured using a double probe in a premixed methane flame produced by a calibration burner according to Hartung et al. The experiment was performed at atmospheric pressure. In contrast to other authors, we have managed to find typical nonlinearities corresponding to the retarding electron current region and to calculate electron temperatures using a suitable fit on the basis of the measured characteristics. A Pt-Rh thermocouple was used to measure temperatures T-h corresponding to "heavy" species. Our results indicate that the flame plasma can be considered to be weakly non-isothermic - T-e = (2400-4000) K, T-h = (1400 - 1600) K. On the basis of measurement of the saturated ion current, the number density of the charged particles was estimated at (0.3 - 3.8).10(17) m(-3). The trends in T-e and T-h in dependence on the positions of the probes and thermocouple in the flame differ substantially; this fact has not yet been explained. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2013
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