Heat and mass transfer at the ignition of a liquid substance by a single "hot" particle

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39 Citations (Scopus)

Abstract

The results of a numerical solution to the problem of heat and mass transfer at the ignition of a liquid flammable substance by a single particle heated to a high temperature located on its surface are presented. The problem is solved within the framework of a gas phase model of ignition. A mathematical model is formulated. It describes the following processes in a two-dimensional statement: The heat conduction and evaporation of a flammable liquid and the diffusion and convection of the combustible vapors in the oxidizer medium in the system "particle heated to a high temperature - liquid flammable substance - air." The numerical investigations established the relation between the ignition delay time, the particle temperature and sizes, and the particle minimum temperature and sizes at which ignition of a combustible liquid is possible.

Original languageEnglish
Pages (from-to)244-252
Number of pages9
JournalJournal of Engineering Thermophysics
Volume17
Issue number3
DOIs
Publication statusPublished - 27 Aug 2008

Fingerprint

Heat and Mass Transfer
Ignition
ignition
mass transfer
Mass transfer
heat transfer
Liquid
Heat transfer
Liquids
liquids
Temperature
oxidizers
Delay Time
Particle System
Evaporation
Heat Conduction
Numerical Investigation
Heat conduction
conductive heat transfer
Convection

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Modelling and Simulation
  • Condensed Matter Physics
  • Environmental Engineering

Cite this

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abstract = "The results of a numerical solution to the problem of heat and mass transfer at the ignition of a liquid flammable substance by a single particle heated to a high temperature located on its surface are presented. The problem is solved within the framework of a gas phase model of ignition. A mathematical model is formulated. It describes the following processes in a two-dimensional statement: The heat conduction and evaporation of a flammable liquid and the diffusion and convection of the combustible vapors in the oxidizer medium in the system {"}particle heated to a high temperature - liquid flammable substance - air.{"} The numerical investigations established the relation between the ignition delay time, the particle temperature and sizes, and the particle minimum temperature and sizes at which ignition of a combustible liquid is possible.",
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AU - Kuznetsov, G. V.

AU - Strizhak, Pavel A.

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N2 - The results of a numerical solution to the problem of heat and mass transfer at the ignition of a liquid flammable substance by a single particle heated to a high temperature located on its surface are presented. The problem is solved within the framework of a gas phase model of ignition. A mathematical model is formulated. It describes the following processes in a two-dimensional statement: The heat conduction and evaporation of a flammable liquid and the diffusion and convection of the combustible vapors in the oxidizer medium in the system "particle heated to a high temperature - liquid flammable substance - air." The numerical investigations established the relation between the ignition delay time, the particle temperature and sizes, and the particle minimum temperature and sizes at which ignition of a combustible liquid is possible.

AB - The results of a numerical solution to the problem of heat and mass transfer at the ignition of a liquid flammable substance by a single particle heated to a high temperature located on its surface are presented. The problem is solved within the framework of a gas phase model of ignition. A mathematical model is formulated. It describes the following processes in a two-dimensional statement: The heat conduction and evaporation of a flammable liquid and the diffusion and convection of the combustible vapors in the oxidizer medium in the system "particle heated to a high temperature - liquid flammable substance - air." The numerical investigations established the relation between the ignition delay time, the particle temperature and sizes, and the particle minimum temperature and sizes at which ignition of a combustible liquid is possible.

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