3D modeling high temperature flows in the combustion chambers of the power plants
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Keywords:
fuel, turbulent flow, numerical method, boiler, burner, high-energy fuelAbstract
In this paper the results obtained by the numerical method of modelling of Ekibastuz coal burning in BKZ-420 combustion chamber of Kazakhstan’s coal-fired Power Plant are presented. They are devoted to the numerical simulation of combustion processes in the furnace boiler BKZ-420. Boiler’s steam generating capacity 420 T/h. Boiler has six vertical pulverized coal burners arranged in two levels with three burners on the front wall of the boiler. High ash, low-grade coal from Ekibastuz burned in the furnace. Its ash content is 39 %, volatile – 24 %, humidity – 5 %, highest calorific value is 16 750 kJ/kg. In this research the main harmful gases distribution characteristics of the concentration of carbon oxides (CO and CO2), nitrogen dioxide (NO2), and oxygen O2 are shown.References
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. 13. Bolegenova S.A., Bekmuhamet A., et al. Using 3d modeling technology for investigation of conventional combustion mode of bkz-420-140-7c combustion chamber // Journal of Engineering and Applied Sciences. – 2014. – Vol. 9. – P.24-28.
14. Messerle V.E., Maksimov V.Yu., et al. Numerical simulation of pulverized coal combustion in a power boiler furnace // Journal of High Temperature. – 2015. – Vol.53,No 3. – P.445-452.
15. Safarik P., Askarova A.S., et al. Numerical Modeling of Pulverized Coal Combustion at Thermal Power Plant Boilers // Journal of Thermal Science. – 2015. – Vol. 24,No 3. – P.275-282.
16. Loktionova I.V., Messerle V.E., et al. 3D modeling of the two-stage combustion of Ekibastuz coal in the furnace chamber of a PK-39 boiler at the Ermakovo district power station // Journal of Thermal engineering. – 2003. – Vol. 50, No 8. – P.633-638.
2. Ustimenko A.B., Askarova A.S., Messerle V.E., Nagibin A. Pulverized coal torch combustion in a furnace with plasma-coal system //
82 International Journal of Mathematics and Physics 7, №1, 73 (2016) 3D modeling high temperature flows in the combustion chambers of the power plants Journal of Thermophysics and Aeromechanics. – 2010. – Vol.7, No 3. – P. 435-444.
3. Karpenko E.I., Messerle V.E. et al. Plasma enhancement of combustion of solid fuels // Journal of High Energy Chemistry. – 2006. – Vol. 40, No 2. – P.111-118.
4. D Askarova A.S., Lavrichsheva Ye., Leithner R., Müller H., Magda A. Combustion of low-rank coals in furnaces of Kazakhstan Coal-firing Power Plants // VDI Berichte. – 2007. –No 1088. – P. 497-502.
5. Vockrodt S., Leithner R., Schiller R., Buchman M. Firing technique measures for increased efficiency and minimization of toxic emissions in Kasakh coal firing // VDI BERICHTE. – Dresden. – 1999. – Vol. 1492. – P. 93-97.
6. B Abbas T., Costen P.G. and Lockwood F.C. Solid Fuel Utilisation: From Coal to Biomass Twenty-Sixth Symposium (International) on Combustion, The Combustion Institute, Pittsburgh. – 1996. – 3041 p.
7. Bolegenova S.A., Messerle V.E., Maksimov V.Yu. et al. Numerical Simulation of the Coal Combustion Process Initiated by a Plasma Source // Journal of Thermophysics and Aeromechanics. – 2014. – Vol. 21, No 6. – P.747-754.
8. Leithner, R., Müller, H. CFD studies for boilers Second M.I.T. Conference on Computational Fluid and Solid Mechanics – Cambridge. – 2003. – 172 p.
9. Karpenko Yu.E., Karpenko E.I., Askarova A.S. et al. Mathematical modeling of the processes of solid fuel ignition and combustion at combustors of the power boilers // 7-th International Fall Seminar on Propellants, Explosives and Pyrotechnics. Theory and Practice of Energetic Materials. – China. – 2007. – Vol. 7. – P. 672-683.
10. L Buchmann M.A., Askarowa A. Structure of the flame of fluidized-bed burners and combustion processes of high-ash coal // VDI BERICHTE. – 1997. – Vol. 1313. – P. 241-244.
11. Bekmukhamet A., Beketayeva M.T., Sh.S., Gabitova Z.K. et al. Numerical modeling of turbulence characteristics of burning process of the solid fuel in BKZ-420-140-7c combustion chamber // International Journal of Mechanics. – 2014. – Vol.8. – P.112-122.
12. Askarova A.S., Maksimov V.Yu., et al. Computational method for investigation of solid fuel combustion in combustion chambers of a heat power plant // Journal of High Temperature. – 2015. – Vol.53,No 5. – P. 751-7570
. 13. Bolegenova S.A., Bekmuhamet A., et al. Using 3d modeling technology for investigation of conventional combustion mode of bkz-420-140-7c combustion chamber // Journal of Engineering and Applied Sciences. – 2014. – Vol. 9. – P.24-28.
14. Messerle V.E., Maksimov V.Yu., et al. Numerical simulation of pulverized coal combustion in a power boiler furnace // Journal of High Temperature. – 2015. – Vol.53,No 3. – P.445-452.
15. Safarik P., Askarova A.S., et al. Numerical Modeling of Pulverized Coal Combustion at Thermal Power Plant Boilers // Journal of Thermal Science. – 2015. – Vol. 24,No 3. – P.275-282.
16. Loktionova I.V., Messerle V.E., et al. 3D modeling of the two-stage combustion of Ekibastuz coal in the furnace chamber of a PK-39 boiler at the Ermakovo district power station // Journal of Thermal engineering. – 2003. – Vol. 50, No 8. – P.633-638.
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How to Cite
Bolegenova, S., Askarova, A., Bekmukhamet, A., Bolegenova, S., Maximov, V., Ospanova, S., Manabayeva, R., & Utelov, S. (2016). 3D modeling high temperature flows in the combustion chambers of the power plants. International Journal of Mathematics and Physics, 7(1). Retrieved from https://ijmph.kaznu.kz/index.php/kaznu/article/view/163
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Physics of Condensed Matter
