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Fizika Goreniya i Vzryva, 2015, Volume 51, Issue 3, Pages 19–33
DOI: https://doi.org/10.15372/FGV20150303
(Mi fgv223)
 

This article is cited in 6 scientific papers (total in 6 papers)

Formation of condensed combustion products in metal dust flames: Nucleation stage

N. I. Poletaev

Institute of Combustion and Unconventional Technologies, Mechnikov Odessa National University, Odessa, 65082, Ukraine
Full-text PDF (334 kB) Citations (6)
Abstract: The nucleation of the ionized combustion products of small ($d_{10}\approx$ 5 mm) particles of Al, Mg, Zr, Fe, and Ti under laminar dust flame conditions at atmospheric pressure is considered in an isothermal approximation. It is shown that under conditions close to the experimental ones, the condensation of the products of gas-phase combustion of these metals is “rapid.” Description of the “rapid” nucleation regime requires a nonstationary approach and knowledge of the kinetics of nucleation of the condensed phase and does not need a detailed analysis of the influence of environmental parameters on the free energy of formation of small nuclei. It is shown that the characteristic nucleation time of the gas-phase combustion products of metal particles is several orders of magnitude smaller than the residence time of the products in the combustion zone of the flame dust. This allows coagulation to be considered as the basic process which determines the degree of dispersion of primary particles of the metal combustion products.
Keywords: metal dust flames, nucleation kinetics, thermal ionization of the flame, metal oxide nanoparticles.
Received: 27.01.2014
Revised: 08.08.2014
English version:
Combustion, Explosion and Shock Waves, 2015, Volume 51, Issue 3, Pages 299–312
DOI: https://doi.org/10.1134/S001050821503003X
Bibliographic databases:
Document Type: Article
UDC: 546.36
Language: Russian
Citation: N. I. Poletaev, “Formation of condensed combustion products in metal dust flames: Nucleation stage”, Fizika Goreniya i Vzryva, 51:3 (2015), 19–33; Combustion, Explosion and Shock Waves, 51:3 (2015), 299–312
Citation in format AMSBIB
\Bibitem{Pol15}
\by N.~I.~Poletaev
\paper Formation of condensed combustion products in metal dust flames: Nucleation stage
\jour Fizika Goreniya i Vzryva
\yr 2015
\vol 51
\issue 3
\pages 19--33
\mathnet{http://mi.mathnet.ru/fgv223}
\crossref{https://doi.org/10.15372/FGV20150303}
\elib{https://elibrary.ru/item.asp?id=23767565}
\transl
\jour Combustion, Explosion and Shock Waves
\yr 2015
\vol 51
\issue 3
\pages 299--312
\crossref{https://doi.org/10.1134/S001050821503003X}
Linking options:
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  • https://www.mathnet.ru/eng/fgv/v51/i3/p19
  • This publication is cited in the following 6 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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