Numerical and experimental research of heat and mass transfer at the heterogeneous system ignition by local energy source with limited heat content

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Numerical and experimental investigations were executed for determination of macroscopic regularities of heat and mass transfer processes under the conditions of the phase transformations and chemical reaction at the ignition of vapors coming from fabrics impregnated by combustible liquid into oxidant area at the local power supply. It was established that initial temperature Θp>1 of local energy source and volume fraction φ>30% of combustible liquid vapors in fabric are necessary for realization of ignition conditions in a system "fabric - combustible liquid - oxidant.". Thus three ignition modes are possible for such system. The most widespread mode is an arrangement of ignition zone near the lateral side of local energy source. Also we obtained approximating expressions of ignition delay time on initial temperature and characteristic size of a local energy source for fabrics impregnated by some kinds of combustible liquids (gasoline, kerosene, and diesel fuel). Its dependences may be useful at engineering calculations of fire danger for processes of single hot particles interaction with liquid combustible substances.

Original languageEnglish
Article number281527
JournalMathematical Problems in Engineering
Volume2014
DOIs
Publication statusPublished - 2014

Fingerprint

Ignition systems
Heat and Mass Transfer
Heterogeneous Systems
Ignition
Enthalpy
Mass transfer
Heat
Liquid
Heat transfer
Liquids
Energy
Oxidants
Vapors
Local Power
Particle interactions
Phase Transformation
Kerosene
Delay Time
Diesel fuels
Numerical Investigation

ASJC Scopus subject areas

  • Mathematics(all)
  • Engineering(all)

Cite this

@article{f5d1f917278d40a6b270226b1c3b8616,
title = "Numerical and experimental research of heat and mass transfer at the heterogeneous system ignition by local energy source with limited heat content",
abstract = "Numerical and experimental investigations were executed for determination of macroscopic regularities of heat and mass transfer processes under the conditions of the phase transformations and chemical reaction at the ignition of vapors coming from fabrics impregnated by combustible liquid into oxidant area at the local power supply. It was established that initial temperature Θp>1 of local energy source and volume fraction φ>30{\%} of combustible liquid vapors in fabric are necessary for realization of ignition conditions in a system {"}fabric - combustible liquid - oxidant.{"}. Thus three ignition modes are possible for such system. The most widespread mode is an arrangement of ignition zone near the lateral side of local energy source. Also we obtained approximating expressions of ignition delay time on initial temperature and characteristic size of a local energy source for fabrics impregnated by some kinds of combustible liquids (gasoline, kerosene, and diesel fuel). Its dependences may be useful at engineering calculations of fire danger for processes of single hot particles interaction with liquid combustible substances.",
author = "Glushkov, {Dmitrii O.} and Kuznetsov, {Genii V.} and Strizhak, {Pavel A.}",
year = "2014",
doi = "10.1155/2014/281527",
language = "English",
volume = "2014",
journal = "Mathematical Problems in Engineering",
issn = "1024-123X",
publisher = "Hindawi Publishing Corporation",

}

TY - JOUR

T1 - Numerical and experimental research of heat and mass transfer at the heterogeneous system ignition by local energy source with limited heat content

AU - Glushkov, Dmitrii O.

AU - Kuznetsov, Genii V.

AU - Strizhak, Pavel A.

PY - 2014

Y1 - 2014

N2 - Numerical and experimental investigations were executed for determination of macroscopic regularities of heat and mass transfer processes under the conditions of the phase transformations and chemical reaction at the ignition of vapors coming from fabrics impregnated by combustible liquid into oxidant area at the local power supply. It was established that initial temperature Θp>1 of local energy source and volume fraction φ>30% of combustible liquid vapors in fabric are necessary for realization of ignition conditions in a system "fabric - combustible liquid - oxidant.". Thus three ignition modes are possible for such system. The most widespread mode is an arrangement of ignition zone near the lateral side of local energy source. Also we obtained approximating expressions of ignition delay time on initial temperature and characteristic size of a local energy source for fabrics impregnated by some kinds of combustible liquids (gasoline, kerosene, and diesel fuel). Its dependences may be useful at engineering calculations of fire danger for processes of single hot particles interaction with liquid combustible substances.

AB - Numerical and experimental investigations were executed for determination of macroscopic regularities of heat and mass transfer processes under the conditions of the phase transformations and chemical reaction at the ignition of vapors coming from fabrics impregnated by combustible liquid into oxidant area at the local power supply. It was established that initial temperature Θp>1 of local energy source and volume fraction φ>30% of combustible liquid vapors in fabric are necessary for realization of ignition conditions in a system "fabric - combustible liquid - oxidant.". Thus three ignition modes are possible for such system. The most widespread mode is an arrangement of ignition zone near the lateral side of local energy source. Also we obtained approximating expressions of ignition delay time on initial temperature and characteristic size of a local energy source for fabrics impregnated by some kinds of combustible liquids (gasoline, kerosene, and diesel fuel). Its dependences may be useful at engineering calculations of fire danger for processes of single hot particles interaction with liquid combustible substances.

UR - http://www.scopus.com/inward/record.url?scp=84904124020&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84904124020&partnerID=8YFLogxK

U2 - 10.1155/2014/281527

DO - 10.1155/2014/281527

M3 - Article

AN - SCOPUS:84904124020

VL - 2014

JO - Mathematical Problems in Engineering

JF - Mathematical Problems in Engineering

SN - 1024-123X

M1 - 281527

ER -