Abstract
A predictive mathematical model for estimating the fire hazard presented by the interaction of a mixture of the products of the thermal decomposition of coal with atmospheric air at relatively low (up to 500 K) temperatures is developed. Heat and mass transfer processes are described by the differential equations of thermal conductivity and diffusion as well as by the balance equation of the concentrations of the components of the gas mixture. Exothermic reaction in the zone of the oxidation reaction is described by the Arrhenius equation. The limiting temperature of the medium formed by the oxidizing agent and the ignition delay time corresponding to these temperatures are established as a result of a numerical investigation of the integral characteristics of “low-temperature” ignition of the gaseous products of thermal decomposition of a single particle of coal of low dimensions (50–500 μm). Recommendations for reducing the number of uncontrolled ignitions of coal in the interaction with “low-temperature” flows of air under the conditions of industrial production are formulated.
| Original language | English |
|---|---|
| Pages (from-to) | 1-6 |
| Number of pages | 6 |
| Journal | Chemical and Petroleum Engineering |
| DOIs | |
| Publication status | Accepted/In press - 21 Nov 2015 |
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Keywords
- air
- coal particle
- heat and mass transfer
- mathematical modeling
- oxidation
- thermal decomposition
ASJC Scopus subject areas
- Chemical Engineering(all)
- Energy Engineering and Power Technology
- Fuel Technology
- Geochemistry and Petrology
Cite this
Predictive Modeling of Gas-Phase Ignition of Products of the Thermal Decomposition of Coal. / Vershinina, Ksenia Yurievna; Glushkov, D. O.; Strizhak, P. A.
In: Chemical and Petroleum Engineering, 21.11.2015, p. 1-6.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Predictive Modeling of Gas-Phase Ignition of Products of the Thermal Decomposition of Coal
AU - Vershinina, Ksenia Yurievna
AU - Glushkov, D. O.
AU - Strizhak, P. A.
PY - 2015/11/21
Y1 - 2015/11/21
N2 - A predictive mathematical model for estimating the fire hazard presented by the interaction of a mixture of the products of the thermal decomposition of coal with atmospheric air at relatively low (up to 500 K) temperatures is developed. Heat and mass transfer processes are described by the differential equations of thermal conductivity and diffusion as well as by the balance equation of the concentrations of the components of the gas mixture. Exothermic reaction in the zone of the oxidation reaction is described by the Arrhenius equation. The limiting temperature of the medium formed by the oxidizing agent and the ignition delay time corresponding to these temperatures are established as a result of a numerical investigation of the integral characteristics of “low-temperature” ignition of the gaseous products of thermal decomposition of a single particle of coal of low dimensions (50–500 μm). Recommendations for reducing the number of uncontrolled ignitions of coal in the interaction with “low-temperature” flows of air under the conditions of industrial production are formulated.
AB - A predictive mathematical model for estimating the fire hazard presented by the interaction of a mixture of the products of the thermal decomposition of coal with atmospheric air at relatively low (up to 500 K) temperatures is developed. Heat and mass transfer processes are described by the differential equations of thermal conductivity and diffusion as well as by the balance equation of the concentrations of the components of the gas mixture. Exothermic reaction in the zone of the oxidation reaction is described by the Arrhenius equation. The limiting temperature of the medium formed by the oxidizing agent and the ignition delay time corresponding to these temperatures are established as a result of a numerical investigation of the integral characteristics of “low-temperature” ignition of the gaseous products of thermal decomposition of a single particle of coal of low dimensions (50–500 μm). Recommendations for reducing the number of uncontrolled ignitions of coal in the interaction with “low-temperature” flows of air under the conditions of industrial production are formulated.
KW - air
KW - coal particle
KW - heat and mass transfer
KW - mathematical modeling
KW - oxidation
KW - thermal decomposition
UR - http://www.scopus.com/inward/record.url?scp=84947722279&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84947722279&partnerID=8YFLogxK
U2 - 10.1007/s10556-015-0086-0
DO - 10.1007/s10556-015-0086-0
M3 - Article
SP - 1
EP - 6
JO - Chemical and Petroleum Engineering (English translation of Khimicheskoe i Neftyanoe Mashinostroenie)
JF - Chemical and Petroleum Engineering (English translation of Khimicheskoe i Neftyanoe Mashinostroenie)
SN - 0009-2355
ER -