Abstract
The paper reports results of experimental ignition of litter layers consisting of needles of cedar, pine, and fir-tree, birch leaves, lichen (Cladonia), and moss (Pleurozium shreberi). It is established that the moss is ignited faster than the other combustible forest materials. It is shown that with equal moisture contents, the ignition times of needle litter from different trees are identical within the experimental error, and for litter of birch leaves, the ignition time is shorter than that for litter of coniferous trees. This difference is found to be due to differences in the interaction of the radiant flux with litter layers of needles and leaves. Minimum values of the ignition heat pulses for needle and leaf litter layers are estimated for various heat-flux densities. These values tend to a minimum for a heat-flux density of 0.5–0.8 MW/m2.
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REFERENCES
N. P. Kurbatskii, "Occurrence of a forest fire in the Tunguska meteorite zone” in: Problems of Meteorite Studies [in Russian], Nauka, Novosibirsk (1975), pp. 69–71.
A. M. Grishin, K. N. Efimov, and V. A. Perminov, "Ignition of forests as a result of space and technogenic catastrophes” Fiz. Goreniya Vzryva, 32, No. 2, 18–31 (1996).
A. M. Grishin and V. A. Perminov, "Ignition of forest tracts by a high-altitude source of radiant energy” Fiz. Goreniya Vzryva, 32, No. 5, 107–115 (1996).
V. S. Pinaev and V. A. Shcherbakov, “Fires caused by nuclear explosions and their consequences” Fiz. Goreniya Vzryva, 32, No. 5, 116–121 (1996).
G. G. Lopatina, V. P. Sasorov, B. V. Spitsyn, and D. V. Fedoseev, Optical Furnaces [in Russian], Metallurgiya, Moscow (1969).
N. P. Kurbatskii, “Amounts and properties of combustible forest materials” in: Questions of Forest Pyrology [in Russian], Institute of Forest, Acad. of Sci. of the USSR, Krasnoyarsk (1970), pp. 3–58.
A. M. Grishin, Mathematical Modeling of Forest Fire and New Methods of Fighting Them, Publ. House of the Tomsk State University, Tomsk (1997).
E. V. Konev, Physical Principles of Combustion of Vegetative Materials [in Russian], Nauka, Novosibirsk (1977).
L. D. Klyuchnikov and G. P. Ivantsov, Heat Transfer by Radiation in Fire Process Plants [in Russian], Energiya, Moscow (1970).
V. T. Kuznetsov, V. P. Marusin, and A. I. Skorik, “On the mechanism of ignition of heterogeneous systems” Fiz. Goreniya Vzryva, 10, No. 4, 526–529 (1974).
I. G. Dik, A. B. Zurer, and V. T. Kuznetsov, “On the stability of ignition of condensed substances under the action of a heat flux pulse” Fiz. Goreniya Vzryva, 15, No. 3, 77–82 (1979).
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Grishin, A.M., Zima, V.P., Kuznetsov, V.T. et al. Ignition of Combustible Forest Materials by a Radiant Energy Flux. Combustion, Explosion, and Shock Waves 38, 24–29 (2002). https://doi.org/10.1023/A:1014097631884
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DOI: https://doi.org/10.1023/A:1014097631884