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

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

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
Volume9
Issue number6
DOIs
Publication statusPublished - 1 Nov 2015

Fingerprint

ignition
Ignition
Porosity
porosity
Heating
heating
heat sources
needles
mass transfer
boundary layers
induction
time lag
Needles
heat transfer
Time delay
Boundary layers
heat
Mass transfer
temperature
Heat transfer

Keywords

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

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

@article{58d90501ac45467b9480bc5e8c96e844,
title = "Ignition conditions and characteristics for high-porosity condensed materials subjected to local conductive heating",
abstract = "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.",
keywords = "experimental study, high-porosity condensed material, ignition delay, limiting conditions, steel particle",
author = "Zakharevich, {A. V.} and Baranovskiy, {N. V.}",
year = "2015",
month = "11",
day = "1",
doi = "10.1134/S1990793115060196",
language = "English",
volume = "9",
pages = "911--914",
journal = "Russian Journal of Physical Chemistry B",
issn = "1990-7931",
publisher = "Maik Nauka-Interperiodica Publishing",
number = "6",

}

TY - JOUR

T1 - Ignition conditions and characteristics for high-porosity condensed materials subjected to local conductive heating

AU - Zakharevich, A. V.

AU - Baranovskiy, N. V.

PY - 2015/11/1

Y1 - 2015/11/1

N2 - 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.

AB - 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.

KW - experimental study

KW - high-porosity condensed material

KW - ignition delay

KW - limiting conditions

KW - steel particle

UR - http://www.scopus.com/inward/record.url?scp=84953233943&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84953233943&partnerID=8YFLogxK

U2 - 10.1134/S1990793115060196

DO - 10.1134/S1990793115060196

M3 - Article

AN - SCOPUS:84953233943

VL - 9

SP - 911

EP - 914

JO - Russian Journal of Physical Chemistry B

JF - Russian Journal of Physical Chemistry B

SN - 1990-7931

IS - 6

ER -