Abstract
This paper reports an experimental procedure and results of studying the ignition of variously shaped specimens of composite polymeric materials in gas flows. The main ignition mechanism under these conditions is the propagation of the heterogeneous oxidation of soot-formation products (carbon black and pyrocarbon) from the surface of contact with the oxidizer into the interstitial space controlled by diffusion. A balance relation between heat input and heat removal on the porous reacting surface is obtained to estimate the ignition conditions of composites under the conditions studied. Key words: ignition, composite polymeric material, heating, cooling, porosity, heterogeneity, pyrocarbon, gas flows.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
V. I. Al'perin, N. V. Korol'kov, A. V. Motavkin, et al., Structural Fiberglass Plastics [in Russian], Khimiya, Moscow (1979).
A. P. Shevchuk, O. A. Simonov, Yu. N. Shebeko, et al., “Regularities of accidents with tanks with liquefied hydrocarbon gases accompanied by formation of ‘fire balls,’ " Khim. Prom., No. 6, 18–20 (1991).
Yu. N. Shebeko, A. P. Shevchuk, I. M. Smolin, et al., “Fire and explosion safety in transportation of liquefied hydrocarbon of gases by rail. 2. Calculation of the damaging factors of fire and explosion during depressurization of a tank car with liquefied hydrocarbon gases," Pozharovzryvobezopasnost', No. 1, 39–45 (1993).
G. N. Isakov and G. Ya. Mamontov, “Unsteady heat exchange and ignition of fiberglass plastics under variable thermal loading," in: Contribution of Young Scientists and Specialists to National Economy, Proc. Regional Sci. Conf., Izd. Tomsk. Univ., Tomsk (1977), pp.203–205.
G. N. Isakov, Heat and Mass Transfer and Ignition in Heterogeneous Systems [in Russian], Izd. Sib. Otd. Ross. Akad. Nauk, Novosibirsk (1999).
ISO 4589:1984. Plastics. Determination of Flammability by Oxygen Index.
ISO 9773:1990. Plastics. Determination of Burning Behavior of Flexible Vertical Specimens in Contact with a Small-Flame Ignition Source.
I. S. Reshetnikov, A. V. Antonov, and N. A. Khalturinskii, “Mathematical description of combustion of intumescent polymer systems," Combust. Expl. Shock Waves, 33, No. 6, 669–684 (1997).
V. V. Nesmelov, G. N. Isakov, et al., “New data on the regularities of thermal destruction of polymeric compounds under convective heat and mass transfer," Dokl. Akad. Nauk SSSR, 292, No. 5, 1123–1126 (1987).
V. V. Nesmelov, “Effect of preliminary thermal treatment on the ignitability of coking polymers," Tomsk (1987). Deposited at VINITI 06.05.87, No. 4047–B87.
N. V. Lavrov, Physicochemical Fundamentals of Fuel Combustion [in Russian], Nauka, Moscow (1971).
E. S. Shchetinkov, Physics of Gas Combustion [in Russian], Nauka, Moscow (1965).
D. A. Frank-Kamenetskii, Diffusion and Heat Transfer in Chemical Kinetics [in Russian], Nauka, Moscow (1987).
M. S. Orenbakh, Reaction Surface in Heterogeneous Combustion [in Russian], Nauka, Novosibirsk (1973).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Isakov, G.N. Parametric Analysis of the Ignition Conditions of Composite Polymeric Materials in Gas Flows. Combustion, Explosion, and Shock Waves 38, 552–558 (2002). https://doi.org/10.1023/A:1020386401113
Issue Date:
DOI: https://doi.org/10.1023/A:1020386401113