Influence of conditions of a hot metal particle thermal contact with a coal dust layer on characteristics of gas-phase ignition

Kristina Paushkina, Maxim Glotov, Dmitrii Glushkov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The prediction of gas-phase ignition characteristics of a coal dust layer by a hot metal particle located on its surface was performed by numerical simulation. The theoretical study results can be used in practice to develop the provisions of fire safety management aimed at preventing large fires and man-made disasters. In this paper we consider coal dust, the particle dispersion of which varies in the range of 0.1-1 mm. As local sources of heating steel disk-shaped and parallelepiped-shaped particles with the same specific size of 10 mm are used. The nonideality factor influence of the thermal contact of a local heat source and a dispersed brown coal layer on its gas-phase ignition delay-Times when the parameters in the considered system vary over a wide range, including the initial temperatures of metal particles from 1100 to 1600 K.

Original languageEnglish
Title of host publicationThermophysical Basis of Energy Technologies, TBET 2019
EditorsGeniy Kuznetsov, Dmitry Feoktistov, Evgeniya Orlova
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735419636
DOIs
Publication statusPublished - 13 Mar 2020
Event2019 Thermophysical Basis of Energy Technologies - Tomsk, Russian Federation
Duration: 9 Oct 201911 Oct 2019

Publication series

NameAIP Conference Proceedings
Volume2212
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2019 Thermophysical Basis of Energy Technologies
CountryRussian Federation
CityTomsk
Period9.10.1911.10.19

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Paushkina, K., Glotov, M., & Glushkov, D. (2020). Influence of conditions of a hot metal particle thermal contact with a coal dust layer on characteristics of gas-phase ignition. In G. Kuznetsov, D. Feoktistov, & E. Orlova (Eds.), Thermophysical Basis of Energy Technologies, TBET 2019 [020045] (AIP Conference Proceedings; Vol. 2212). American Institute of Physics Inc.. https://doi.org/10.1063/5.0001716