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자료유형
학술대회자료
저자정보
Lipanov, A.M. (Institute of Applied Mechanics, Udmurt Scientific Centre, Russian Academy of Sciences) Kodolov, V.I. (State Technical University of lzhevsk and Institute of Applied Mechanics of udmurt Scientific Centre, Russian Academy of Sciences) Ovchinnikova, L.N. (State Technical University of lzhevsk and Institute of Applied Mechanics of udmurt Scientific Centre, Russian Academy of Sciences) Savinsky, S.S. (Udmurt State University, Russia) Khokhriakov, N.V. (Udmurt State University) Sarakula, V.L. (Udmurt State University)
저널정보
한국화재소방학회 한국화재소방학회 심포지움 및 세미나 한국화재소방학회 1997년도 International Symposium on Fire Science and Technology
발행연도
1997.1
수록면
112 - 119 (8page)

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The modelling of carbon substances obtaining, for instance, carbon fibers which have high fire resistance, has been realized on the example of the polyacrylonitrile pyrolysis modelling. The pyrolysis is considered as a double step process when the formation of a liquid phase and the oxidation of substance are excluded. Three main reactions are considered: a) with the evolution of ammonia; b) with the evolution of hydrogen cyanide; c) with the evolution of hydrogen. Reactions b) and c) are sequential, and a) and b) are parallel. The problem is formulated as one-dimensional. The equations of energy, masses or concentrations, porosity and thermal conductivity are proposed. The mathematical model of the carbonization process is designed using tile kinetic characteristics of the above reactions and the thermodynamic parameters of reagents and products in these reactions. The equations received are calculated by Runge-Cutta method and by Adams method of the fourth order accuracy.

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