REDUCED MODEL OF CHEMICAL KINETICS OF DETONATION COMBUSTION OF METHANE
Journal Title: Вестник научного центра по безопасности работ в угольной промышленности - Year 2016, Vol 2, Issue
Abstract
For modeling of chemical transformation in the methane-air mixtures, instead of a detailed kinetic scheme of more than 2,000 elementary reactions in relation to mine explosions, the two-stage model of the kinetics, allowing also consider supplements of water vapor and inert diluents, to assess their impact on the suppression of blast waves is proposed. The model includes a single differential equation to calculate the molar mass of the gas after the induction period and the explicit algebraic formulas for calculating the thermal effect, the internal energy, heat capacity and adiabatic exponent of a mixture. The suggested model is used in numerical two- dimensional calculation of multifront detonation waves in methane-air and methane- oxygen mixtures. Results of calculation of parameters, structure and size of the detonation cell (stoichiometric methane-air and methane-oxygen mixtures it turned to 34 ± 1 cm and 0.30- 0.35 cm) correspond well to the available experimental data.
Authors and Affiliations
P. A. Fomin, A. V. Trotsyuk, A. A. Vasiliev
Keywords
Related Articles
- EP ID EP198889
- DOI -
- Views 87
- Downloads 0
HOW TO SAVE THE LIFE OF A MINER IN THE MINE EMERGENCY SITUATION
The coal mines of Russia are among the most dangerous, and possibly even the most dangerous industrial facilities. Work in coal mines is attributed to work with harmful and dangerous conditions for human health. The prob...
RESULTS OF THE DUST CURTAIN PARAMETERS RESEARCH IN THE SHOCK TUBE
As applied to the problem of creating a dust barriers in mine conditions worked out a technique of creating of suspended matter of ne dust in a vertical shock tube at different initial air pressure p0 = 0.1 ÷ 0.01 MPa....
NECESSITY TO USE THE SEAM DEGASSING ACCORDING TO THE SEAM VERIFIED GAS CONTENT (ON THE EXAMPLE OF THE LONGWALL NO. 449 OF “CHERTINSKAIA-KOKSOVAIA” MINE)
In the article the mining technological situation research of Kuzbass Chertinski deposit seam 4 is described. Within mining lease of “Chertinskaia-Koksovaia” mine OOO “MMK-UGOL” estimation of the seam under work bedding...
THE HYDRAULIC FACTORS SUBSTANTIATION AT STEEP COAL SEAMS’ DEVELOPMENT WITH HYDROIMPULSIVE INSTALLATION
The paper presents the hydraulic factors substantiation at steep coal seams development with hydroimpulsive installation (HII), the required pressure at the outlet of hydroimpulsive installation is found, analytical expr...
METODICHESKIYe OSNOVY PROGNOZA DINAMIKI METANOOBIL'NOSTI VYYEMOCHNOGO UCHASTKA PRI OTRABOTKE MOSHCHNYKH I SBLIZHENNYKH PLASTOV DLINNYMI STOLBAMI [METHODICAL BASES OF THE EXTRACTION SECTION METHANE INFLOW DYNAMICS FORECAST WHEN WORKING OUT THICK AND ADJACENT SEAMS WITH LONG PILLARS]
In the article, mining and technological conditions of underground coal mining related to the development of thick and adjacent seams are considered. The gas-dynamic reaction of the massif to technological impact is cond...