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Artem'ev KV, Berezhetskaya NK, Kazantsev SY, et al. Fast combustion waves and chemi-ionization processes in a flame initiated by a powerful local plasma source in a closed reactor. Philos Trans A Math Phys Eng Sci. 2015;373(2048)doi: 10.1098/rsta.2014.0334.
Artem'ev, K. V., Berezhetskaya, N. K., Kazantsev, S. Y., Kononov, N. G., Kossyi, I. A., Popov, N. A., Tarasova, N. M., Filimonova, E. A., & Firsov, K. N. (2015). Fast combustion waves and chemi-ionization processes in a flame initiated by a powerful local plasma source in a closed reactor. Philosophical transactions. Series A, Mathematical, physical, and engineering sciences, 373(2048), . https://doi.org/10.1098/rsta.2014.0334
Artem'ev, K V, et al. "Fast combustion waves and chemi-ionization processes in a flame initiated by a powerful local plasma source in a closed reactor." Philosophical transactions. Series A, Mathematical, physical, and engineering sciences vol. 373,2048 (2015). doi: https://doi.org/10.1098/rsta.2014.0334
Artem'ev KV, Berezhetskaya NK, Kazantsev SY, Kononov NG, Kossyi IA, Popov NA, Tarasova NM, Filimonova EA, Firsov KN. Fast combustion waves and chemi-ionization processes in a flame initiated by a powerful local plasma source in a closed reactor. Philos Trans A Math Phys Eng Sci. 2015 Aug 13;373(2048). doi: 10.1098/rsta.2014.0334. PMID: 26170426; PMCID: PMC4528428.
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Philos Trans A Math Phys Eng Sci. 2015 Aug 13;373(2048). doi: 10.1098/rsta.2014.0334.

Fast combustion waves and chemi-ionization processes in a flame initiated by a powerful local plasma source in a closed reactor.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences

K V Artem'ev, N K Berezhetskaya, S Yu Kazantsev, N G Kononov, I A Kossyi, N A Popov, N M Tarasova, E A Filimonova, K N Firsov

Affiliations

  1. A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, Vavilov Street 38, Moscow 119991, Russia.
  2. A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, Vavilov Street 38, Moscow 119991, Russia [email protected].
  3. D. V. Skobeltsyn Institute of Nuclear Physics, Moscow State University, Leninskie Gory, 2, Moscow 119991, Russia.
  4. Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya Street 13, Building 2, Moscow 125412, Russia.

PMID: 26170426 PMCID: PMC4528428 DOI: 10.1098/rsta.2014.0334

Abstract

Results are presented from experimental studies of the initiation of combustion in a stoichiometric methane-oxygen mixture by a freely localized laser spark and by a high-current multispark discharge in a closed chamber. It is shown that, preceding the stage of 'explosive' inflammation of a gas mixture, there appear two luminous objects moving away from the initiator along an axis: a relatively fast and uniform wave of 'incomplete combustion' under laser spark ignition and a wave with a brightly glowing plasmoid behind under ignition from high-current slipping surface discharge. The gas mixtures in both the 'preflame' and developed-flame states are characterized by a high degree of ionization as the result of chemical ionization (plasma density n(e)≈10(12) cm(-3)) and a high frequency of electron-neutral collisions (ν(en)≈10(12) s(-1)). The role of chemical ionization in constructing an adequate theory for the ignition of a gas mixture is discussed. The feasibility of the microwave heating of both the preflame and developed-flame plasma, supplementary to a chemical energy source, is also discussed.

© 2015 The Author(s) Published by the Royal Society. All rights reserved.

Keywords: fast combustion wave; non-equilibrium chemi-ionized plasma; powerful discharge

References

  1. J Phys Chem A. 2012 Jun 21;116(24):5910-22 - PubMed

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