Abstract
The effect of the kinetic model of the thermal decomposition of wood on the results of prognostic modeling of the ignition of wood particles was analyzed. The results of mathematical modeling were verified by experimental studies of the ignition of wood particles in a high-temperature environment. Comparative analysis of theoretical and experimental ignition delays shows that they are in good agreement. The prognostic potential of three substantially different kinetic models of wood pyrolysis was analyzed. The model of one-step pyrolysis involving the formation of gaseous reaction products adequately describes thermal decomposition during thermal preparation in the whole range of heating conditions (the deviation from the times obtained using the three-step pyrolysis model does not exceed 5%). Numerical simulation results show that accounting for the thermal decomposition reactions of the second and third levels with the formation of intermediate (liquid and solid) pyrolysis products does not have a significant influence on the characteristics and conditions of ignition of wood particles in a high-temperature gas environment.
| Original language | English |
|---|---|
| Pages (from-to) | 197-209 |
| Number of pages | 13 |
| Journal | Combustion, Explosion and Shock Waves |
| Volume | 55 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Mar 2019 |
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Keywords
- char
- ignition
- ignition delay
- pyrolysis
- volatiles, kinetic model
- wood particle
ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)
- Fuel Technology
- Energy Engineering and Power Technology
- Physics and Astronomy(all)
Cite this
Effect of the Kinetic Model of Pyrolysis on Prognostic Estimates of Ignition Characteristics of Wood Particles. / Kuznetsov, G. V.; Syrodoy, S. V.
In: Combustion, Explosion and Shock Waves, Vol. 55, No. 2, 01.03.2019, p. 197-209.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of the Kinetic Model of Pyrolysis on Prognostic Estimates of Ignition Characteristics of Wood Particles
AU - Kuznetsov, G. V.
AU - Syrodoy, S. V.
PY - 2019/3/1
Y1 - 2019/3/1
N2 - The effect of the kinetic model of the thermal decomposition of wood on the results of prognostic modeling of the ignition of wood particles was analyzed. The results of mathematical modeling were verified by experimental studies of the ignition of wood particles in a high-temperature environment. Comparative analysis of theoretical and experimental ignition delays shows that they are in good agreement. The prognostic potential of three substantially different kinetic models of wood pyrolysis was analyzed. The model of one-step pyrolysis involving the formation of gaseous reaction products adequately describes thermal decomposition during thermal preparation in the whole range of heating conditions (the deviation from the times obtained using the three-step pyrolysis model does not exceed 5%). Numerical simulation results show that accounting for the thermal decomposition reactions of the second and third levels with the formation of intermediate (liquid and solid) pyrolysis products does not have a significant influence on the characteristics and conditions of ignition of wood particles in a high-temperature gas environment.
AB - The effect of the kinetic model of the thermal decomposition of wood on the results of prognostic modeling of the ignition of wood particles was analyzed. The results of mathematical modeling were verified by experimental studies of the ignition of wood particles in a high-temperature environment. Comparative analysis of theoretical and experimental ignition delays shows that they are in good agreement. The prognostic potential of three substantially different kinetic models of wood pyrolysis was analyzed. The model of one-step pyrolysis involving the formation of gaseous reaction products adequately describes thermal decomposition during thermal preparation in the whole range of heating conditions (the deviation from the times obtained using the three-step pyrolysis model does not exceed 5%). Numerical simulation results show that accounting for the thermal decomposition reactions of the second and third levels with the formation of intermediate (liquid and solid) pyrolysis products does not have a significant influence on the characteristics and conditions of ignition of wood particles in a high-temperature gas environment.
KW - char
KW - ignition
KW - ignition delay
KW - pyrolysis
KW - volatiles, kinetic model
KW - wood particle
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UR - http://www.scopus.com/inward/citedby.url?scp=85066792416&partnerID=8YFLogxK
U2 - 10.1134/S0010508219020096
DO - 10.1134/S0010508219020096
M3 - Article
VL - 55
SP - 197
EP - 209
JO - Combustion, Explosion and Shock Waves
JF - Combustion, Explosion and Shock Waves
SN - 0010-5082
IS - 2
ER -