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The kinetics of the methane acidification by the oxygen and its role in the blast air wave formation in mine workings

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Category: Environmental safety, labour protection

Last Updated on 02 April 2016

Published on 02 April 2016

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Authors:

A.V. Chernai, Dr. Sci. (Phys.-Math.), Professor, State Higher Educational Institution “National Mining University”, Professor of the Department of Physics, Dnipropetrovsk, Ukraine.

M.M. Nalysko, Cand. Sci. (Tech.), Associate Professor, State Higher Educational Institution “Prydniprovska State Academy of Civil Engineering and Architecture”, Senior Lecturer of the De-partment of Vital Activity Safety, Dnipropetrovsk, Ukraine.

H.S. Derevianko, State Higher Educational Institution “National Mining University”, postgraduate student, Dnipropetrovsk, Ukraine.

Abstract:

Purpose. The numerical calculation of the gas explosion parameters subject to the kinetics of the methane oxidation by oxygen in mine atmosphere, carrying out the model testing accounts of the methane-air mixtures explosion.

Methodology. The mathematical modeling of the gas-dynamic and physicochemical processes of the gas explosion. The numerical experiment of the methane ignition process, deflagration and detonation combustion, formation and propagation the explosive airwaves.

Findings. The choice of the chemical kinetics model of methane combustion mechanism in open reactor has been substantiated. The nonstationary processes of the methane-air environment explosion, formation and spreading of the explosion wave in mine workings has been modeled. The numerical experiment results have been analyzed.

Originality. The new approach in realization of the pattern of gas dynamic process numerical account – methane explosion – has been developed, in which the kinetics of methane oxidation chemical reaction and dynamics of explosion energy transmission by explosion wave and gas environment streams have been combined.

Practical value. The results of the numerical account scheme modification are applied during the technical solutions substantiation regarding the explosion security of mine workings emergency areas.

References:

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2. Ageev, V.G., 2009. The prevention and localization problems of the methane explosions in mines, Gornospasatelnoye Delo, vol. 46, pp. 5−10.

3. Vasenin, I.M., Schrager, E.R., Kraynov, A.Yu. and Paleev, D.Yu., Lukashov, O.Yu. and Kosterenko, V.N., 2011. The mathematical modeling of the non-stationary ventilation processes in the coalmines workings network. Kompyuternye Issledovaniya i Modelirovaniye, vol.3, no.2, pp. 155−163.

4. Lukashov, O.Yu., 2014. About the complex approach to the modeling the emergency situation by the gas explosion in a coal mine. Vestnik Tomskogo Gosudarstvennogo Universiteta, Matematika i Mekhanika, 6(32), pp. 86−93;

5. Grekov, S.P. Zinchenko, I.N. and Karmanov, V.S., 2010. The calculation methodology of air shock waves parameters by the gas and dust explosions in mines. Gornospasatelnoye Delo, vol. 47. pp. 17–25.

6. Gelfand, B.E. and Silnikov, M.V., 2003. Khimicheskie i fizicheskie vzryvy. Parametry i kontrol [The chemical and physical explosions. The parameters and control], St. Petersburg: OOO “Izdatelstvo Poligon”.

7. Nalisko, N.N., 2013. The numerical account of the dynamic load from the air shock wave effect on the engineering buildings, High-energy systems, processes and their models: The collection of scientific works, Dnepropetrovsk: National Mining University, pp. 255−266;

8. Warnatz, J. Maas, U. and Dibble, R.W., 2006. Combustion. Physical and chemical fundamentals, modeling and simulations, experiments, pollutant formation. 4thed. Springer-Verlag Berlin Heidelberg.

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