Ignition conditions and characteristics for high-porosity condensed materials subjected to local conductive heating

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An experimental study of the ignition conditions (limiting heat source temperature) and characteristics (delay time) for high-porosity condensed materials under local conductive heating is reported. The study has been carried out on dry pine needles, a typical high-porosity combustible forest material. The dependence of the ignition delay for the material on the initial temperature of the heat source—a single cylindrical particle preheated to a high temperature—has been elucidated. A hypothesis concerning the mechanism of ignition of high-porosity condensed materials under local conductive heating has been formulated: the effect of high open porosity on the intensity of heat and mass transfer in the boundary layer of the material in the induction period has been substantiated.

Original languageEnglish
Pages (from-to)911-914
Number of pages4
JournalRussian Journal of Physical Chemistry B
Issue number6
Publication statusPublished - 1 Nov 2015



  • experimental study
  • high-porosity condensed material
  • ignition delay
  • limiting conditions
  • steel particle

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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