Special Features of Propagation of Peat Fire

Subbotin, A. N.

doi:10.1023/b:joep.0000003233.96639.ff

Cited by 10 publications

(3 citation statements)

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“…is a function describing the influence of the gas volume fraction on the drag, * ξ = 2 p d /120 is the typical permeability, ρ is the density, 5 ρ is the gaseous phase density, ,…”

Section: Problem Statementmentioning

confidence: 99%

On the mathematical modelling of processes of peat firing and smoldering

Golovanov

Yakimov

Abramovskikh

et al. 2008

Thermophys. Aeromech.

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Based on a mathematical model of a porous reacting medium the statement and mathematical solution are presented for a problem of the peat smoldering rise as a result of the effect of a lower seat of fire. It is found that at moderate temperatures T ≤ 750 K the firing and smoldering of the initial reagent are determined by the intensity of the external burning seat as well as by the processes of the peat drying, pyrolysis, and the oxidation reaction of the coked fixed bed.

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“…is a function describing the influence of the gas volume fraction on the drag, * ξ = 2 p d /120 is the typical permeability, ρ is the density, 5 ρ is the gaseous phase density, ,…”

Section: Problem Statementmentioning

confidence: 99%

On the mathematical modelling of processes of peat firing and smoldering

Golovanov

Yakimov

Abramovskikh

et al. 2008

Thermophys. Aeromech.

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“…It is necessary to emphasize the works [12,13] which analyze the thermal and physical peat properties (thermal conductivity, heat capacity, combustion heat of a substance) determining the velocity of the smoldering front and the heat exchange of fuels with the environment. The experimental studies concerning the propagation of peat fires are considered in [14][15][16][17][18]. As a result, the initial temperature of the ignition source was obtained versus the heat exchange with the ambient air and the moisture content of peat, and the modes of ignition and smoldering of peat were investigated in the air flow and in the absence of the air flow in the laboratory conditions.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of the influence of ignition source position on the parameters of peat fire propagation

Касымов¹,

Agafontsev²

2016

AIP Conference Proceedings

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Abstract. The penetration of smoldering combustion into the peat layer was experimentally studied taking into account a different botanical peat composition typical in the Tomsk region of Russia. The laboratory tests allowed us to obtain and analyze the temperature of the peat samples versus time, and also to estimate the velocity of the smoldering combustion in the horizontal and vertical directions. The results showed the faster penetration of smoldering combustion into the grass-sphagnum peat compared with the pine-cotton peat. The botanical composition and the flow of oxidizers in the combustion zone have a significant effect on the smoldering combustion, especially on the penetration of smoldering front into the peat layer. The chaotic distribution of the fuel particles contributes to the propagation of smoldering combustion both in the horizontal and vertical direction and influences on the spread of the smoldering front.

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“…To develop mathematical models of peat fire spread 2, 5 it is necessary to know the thermophysical properties of the fuel 4,6 and the Thermo Kinetic Constants (TKC) of the drying and heterogeneous combustion.…”

Section: Introductionmentioning

confidence: 99%