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Application of overfire air technology on an example of a steam boiler PK-39 of the Aksu TPP (Kazakhstan)

Year 2018, Volume: 6 Issue: 4, 217 - 223, 28.10.2018
https://doi.org/10.17694/bajece.475543

Abstract

When burning any fossil fuels, one of the
most harmful combustion products are nitrogen oxides NOx, which damage both the
environment and human health in particular. Reduction of NOx emissions from
fuel combustion at TPPs plays an important role in reducing the total level of
nitrogen oxides NOx emitted into the atmosphere. One way to reduce the concentration
of nitrogen oxides NOx is the stepwise combustion of the pulverized coal
mixture, in particular the «Overfire Air» technology. The essence of this
method is that the main volume of air is fed into the pulverized burners, and
the rest of the air is further along the height of the torch through special
nozzles. Structurally, the method of stepwise combustion of fuel can be carried
out in boilers with a two-tier arrangement of burners along the height of the
combustion chamber. In this case, practically no significant reconstruction of
the boiler is required, which is associated with additional costs. In the
present work, computational experiments on the use of modern overfire air
technology (OFA) in the combustion chamber of the PK-39 boiler of the Aksu TPP
were carried out and the fields of the main characteristics of heat and mass
transfer, as well as the influence of the mass flow of the oxidant through the
OFA injectors on the combustion process were obtained.

References

  • [1] Askarova A., Bolegenova S., Bekmukhamet A., Maximov Yu.V., Beketayeva M., Ospanova Sh. Gabitova Z.K., “Investigation of turbulence characteristics of burning process of the solid fuel in BKZ 420 combustion chamber”, WSEAS Transactions on Heat and Mass Transfer, Vol.9, 2014, pp. 39-50.
  • [2] Askarova A.S., Bekmukhamet A., Bolegenova S.A., Beketayeva M.T., Maximov Yu.V., Ospanova Sh.S., Gabitova Z.K., “Numerical modeling of turbulence characteristics of burning process of the solid fuel in BKZ-420-140-7c combustion chamber”, International Journal of Mechanics, Vol.8, 2014, pp. 112-122.
  • [3] Askarova A.S., Bolegenova S.A., Maximov V.Y., Bekmukhamet A, Beketayeva M.T., Gabitova Z.K. et al. Computational method for investigation of solid fuel combustion in combustion chambers of a heat power plant, High temperature, Vol.53, No.5, 2015, pp.751-757.
  • [4] Askarova A., Bolegenova S., Bekmukhamet A., Ospanova Sh., Gabitova Z., “Using 3D modeling technology for investigation of conventional combustion mode of BKZ-420-140-7c combustion chamber”, Journal of Engineering and Applied Sciences, Vol.9, No.1, 2014, pp. 24-28.
  • [5] Askarova A.S., Bolegenova S.A., Bekmuhamet A., Maximov V.Yu., “Mathematical simulation of pulverized coal in combustion chamber”, Procedia Engineering, Vol.42, 2012, pp. 1259-1265.
  • [6] Askarova A., Bekmukhamet A., Bolegenova S., Ospanova Sh., Bolegenova Symbat, Maximov V. Beketayeva M., Gabitova Z., Ergalieva A., “3D modeling of heat and mass transfer during combustion of solid fuel in BKZ-420-140-7c combustion chamber of Kazakhstan”, Journal of Applied Fluid Mechanics, Vol.9, No.2, 2016, pp. 699-709.
  • [7] Askarova, A.S., Lavrichsheva, Ye.I., Leithner, R., Müller, H., Magda, A., “Combustion of low-rank coals in furnaces of Kazakhstan coal-firing power plants”. VDI Berichte, Vol.1988, 2007, pp. 497-502.
  • [8] Askarova, A. S., Vockrodt S., Leithner. et al., “Firing technique measures for increased efficiency and minimization of toxic emissions in Kasakh coal firing” VDI, 19th German Conference on Flames, Germany, VDI Gesell Energietechn; Verein Deutsch Ingn., Combustion And Incineration, VDI Berichte, Vol.1492, 1999, P. 93.
  • [9] Kuang M., Li Z., Liu C., Zhu Q., Zhang Y., Wang Y., “Evaluation of overfire air behavior for a down-fired 350 MWe utility boiler with multiple injection and multiple staging”, Applied Thermal Engineering, Vol.48, 2012, pp. 164-175.
  • [10] Askarova A.S., Messerle V.E., Ustimenko A.B., Bolegenova S.A., Bolegenova S.A., Maximov V.Y., Ergalieva A., “Reduction of noxious substance emissions at the pulverized fuel combustion in the combustor of the BKZ-160 boiler of the Almaty heat electropower station using the “Overfire Air” technology”, Thermophysics and aeromechanics, Vol.23, No.1, 2016, pp. 125-134.
  • [11] A.S. Askarova, E.I. Heierle, S.A. Bolegenova, V.Ju. Maximov, S.A. Bolegenova, R. Manatbayev, M.T. Beketaeva, A.B. Ergalieva, “CFD study of harmful substances production in coal-fired power plant of Kazakhstan”, Bulgarian Chemical Communications, Special Issue E, 2016, pp. 260-265.
  • [12] Li M., Wang X., Sun S., Zhen X., Li Q., Zhang T., “Influence of Overfire air jet form on low NOx retrofit effect of an opposed firing boiler”, Journal of Chinese society of power engineering, Vol.4, 2015, pp. 263-269.
  • [13] Askarova, A.S., Messerle, V.E., Ustimenko, A.B., Bolegenova, S.A., Maximov, V.Yu. Gabitova, Z.Kh., “Numerical simulation of pulverized coal combustion in a power boiler furnace”, High temperature, Vol.53, No.3, 2015, pp. 445-452.
  • [14] Askarova, A.S., Bolegenova, S.A., Maximov, V.Y., Bekmukhamet, A, Beketayeva M., Gabitova Z., “Control of Harmful Emissions Concentration into the Atmosphere of Megacities of Kazakhstan Republic”, IERI Procedia, International Conference on Future Information Engineering (FIE2014), Beijing, 2014, pp. 252-258.
  • [15] A. Askarova, S. Bolegenova, S. Bolegenova, V. Maximov, R. Manatbayev, A. Yergaliyeva, Z. Gabitova, A. Maxutkhanova, Zh. Shortanbayeva, A. Boranbayeva, K. Berdikhan, “Application of 3D modelling for solving the problem of combustion coal-dust flame”, Bulgarian Chemical Communications, Special Issue E, 2016, pp. 236-241.
  • [16] R. Leithner, A. Askarova, S. Bolegenova, S. Bolegenova, V. Maximov, Sh. Ospanova, A. Ergalieva, A. Nugymanova, M. Beketayeva, “Computational modeling of heat and mass transfer processes in combustion chamber at power plant of Kazakhstan”, MATEC Web of Conferences, 2016, 5p.
  • [17] Askarova, A., Bolegenova, S., Bolegenova, S., Boranbayeva, A., Berdikhan, K., “Application of numerical methods for calculating the burning problems of coal-dust flame in real scale”, International Journal of Applied Engineering Research, Vol.11, No.8, 2016, pp. 5511-5515.
  • [18] Askarova A., Bolegenova S. et al., “Influence of boundary conditions to heat and mass transfer processes”, International Journal of Mechanics, Vol.10, 2016, pp. 320-325.
  • [19] Askarova A., Bolegenova S., Maximov V. et al., “On the effect of the temperature boundary conditions on the walls for the processes of heat and mass transfer”, International Journal of Mechanics, Vol.10, 2016, pp. 349-355.
  • [20] Askarova, A. S., Bolegenova, S.A., Maximov, V.Y., Bekmukhamet, A, Ospanova, S.S., “Numerical research of aerodynamic characteristics of combustion chamber BKZ-75 mining thermal power station”, Procedia Engineering, Vol.42, 2012, pp.1250-1259.
  • [21] Weber K., “Dreidimensionale Simulation der Gas–Festoff–Strömung in kohlegefeuerten Dampferzeugern”, Fortschritt–Berichte VDI–Verlag, Vol.6, No.415, 1999, p. 198.
  • [22] Askarova A.S., Bolegenova S.A., Bolegenova S., Bekmukhamet A., Maximov V.Yu., Beketayeva M.T., “Numerical experimenting of combustion in the real boiler of CHP”, International Journal of Mechanics, Vol.3, No.7, 2013, pp. 343-352.
  • [23] Askarova, A.S., Messerle, V.E., Ustimenko, A.B., Bolegenova, S.A., Maksimov, V.Yu., “Numerical simulation of the coal combustion process initiated by a plasma source”, Thermophysics and aeromechanics, Vol.21, No.6, 2014, pp. 747-754.
  • [24] Aliyarov B.K., Aliyarova M.B. Szhiganie kazahstanskih ugley na TES i na krupnyih kotelnyih: opyit i problemyi, Almatyi, 2012.
  • [25] Leithner R., Müller H., “CFD studies for boilers”, Second M.I.T. Conference on Computational Fluid and Solid Mechanics, Cambridge, 2003, p. 172.
  • [26] Leithner R., Müller H., Heitmüller R., “Dreidimensionale Simulation von Dampferzeuger-Brennkammern einschließlich der NOx-Schadstoffkinetik”, VGB-Fachtagung: Dampfkessel und Dampfkesselbetrieb, Essen, 1993. 152 p.
  • [27] Müller H., “Numerische Berechnung dreidimensionaler turbulenter Strömungen in Dampferzeugern mit Wärmeübergang und chemischen Reactionen am Beispiel des SNCR–Verfahrens und der Kohleverbrennung”, Fortschritt–Berichte VDI-Verlag, 1992, No.268, 158 p.
  • [28] Askarova, A.S., Karpenko, E.I., Karpenko, Yu.E., Messerle, V.E., Ustimenko, A.B., “Mathematical modelling of the processes of solid fuel ignition and combustion at combustors of the power boilers”, 7th International Fall Seminar on Propellants, Explosives and Pyrotechnics. Xian, Vol.7, 2007, pp. 672-683.
  • [29] A.S. Askarova, S.A. Bolegenova, Symbat Bolegenova, V.Yu. Maximov, R. Manatbayev, Zh.K. Shortanbayeva, A.M. Maksutkhanova, A.N. Aldiyarova, A.E.Boranbayeva, “Mathematical modeling of heat and mass transfer in the presence of physical-chemical processes”, Bulgarian Chemical Communications, Special Issue E, 2016, p. 272-277.
  • [30] Askarova, A.S., Maximov, V., Beketayeva, M., Safarik, P., “Numerical Modeling of Pulverized Coal Combustion at Thermal Power Plant Boilers”, Journal of thermal science, Vol. 24, No.3, 2015, pp. 275-282.
  • [31] Zeldovich J., “The oxidation of Nitrogen in combustions and explosions”, Acta Physicochemica, Vol.21, 1946, pp. 557-628.
Year 2018, Volume: 6 Issue: 4, 217 - 223, 28.10.2018
https://doi.org/10.17694/bajece.475543

Abstract

References

  • [1] Askarova A., Bolegenova S., Bekmukhamet A., Maximov Yu.V., Beketayeva M., Ospanova Sh. Gabitova Z.K., “Investigation of turbulence characteristics of burning process of the solid fuel in BKZ 420 combustion chamber”, WSEAS Transactions on Heat and Mass Transfer, Vol.9, 2014, pp. 39-50.
  • [2] Askarova A.S., Bekmukhamet A., Bolegenova S.A., Beketayeva M.T., Maximov Yu.V., Ospanova Sh.S., Gabitova Z.K., “Numerical modeling of turbulence characteristics of burning process of the solid fuel in BKZ-420-140-7c combustion chamber”, International Journal of Mechanics, Vol.8, 2014, pp. 112-122.
  • [3] Askarova A.S., Bolegenova S.A., Maximov V.Y., Bekmukhamet A, Beketayeva M.T., Gabitova Z.K. et al. Computational method for investigation of solid fuel combustion in combustion chambers of a heat power plant, High temperature, Vol.53, No.5, 2015, pp.751-757.
  • [4] Askarova A., Bolegenova S., Bekmukhamet A., Ospanova Sh., Gabitova Z., “Using 3D modeling technology for investigation of conventional combustion mode of BKZ-420-140-7c combustion chamber”, Journal of Engineering and Applied Sciences, Vol.9, No.1, 2014, pp. 24-28.
  • [5] Askarova A.S., Bolegenova S.A., Bekmuhamet A., Maximov V.Yu., “Mathematical simulation of pulverized coal in combustion chamber”, Procedia Engineering, Vol.42, 2012, pp. 1259-1265.
  • [6] Askarova A., Bekmukhamet A., Bolegenova S., Ospanova Sh., Bolegenova Symbat, Maximov V. Beketayeva M., Gabitova Z., Ergalieva A., “3D modeling of heat and mass transfer during combustion of solid fuel in BKZ-420-140-7c combustion chamber of Kazakhstan”, Journal of Applied Fluid Mechanics, Vol.9, No.2, 2016, pp. 699-709.
  • [7] Askarova, A.S., Lavrichsheva, Ye.I., Leithner, R., Müller, H., Magda, A., “Combustion of low-rank coals in furnaces of Kazakhstan coal-firing power plants”. VDI Berichte, Vol.1988, 2007, pp. 497-502.
  • [8] Askarova, A. S., Vockrodt S., Leithner. et al., “Firing technique measures for increased efficiency and minimization of toxic emissions in Kasakh coal firing” VDI, 19th German Conference on Flames, Germany, VDI Gesell Energietechn; Verein Deutsch Ingn., Combustion And Incineration, VDI Berichte, Vol.1492, 1999, P. 93.
  • [9] Kuang M., Li Z., Liu C., Zhu Q., Zhang Y., Wang Y., “Evaluation of overfire air behavior for a down-fired 350 MWe utility boiler with multiple injection and multiple staging”, Applied Thermal Engineering, Vol.48, 2012, pp. 164-175.
  • [10] Askarova A.S., Messerle V.E., Ustimenko A.B., Bolegenova S.A., Bolegenova S.A., Maximov V.Y., Ergalieva A., “Reduction of noxious substance emissions at the pulverized fuel combustion in the combustor of the BKZ-160 boiler of the Almaty heat electropower station using the “Overfire Air” technology”, Thermophysics and aeromechanics, Vol.23, No.1, 2016, pp. 125-134.
  • [11] A.S. Askarova, E.I. Heierle, S.A. Bolegenova, V.Ju. Maximov, S.A. Bolegenova, R. Manatbayev, M.T. Beketaeva, A.B. Ergalieva, “CFD study of harmful substances production in coal-fired power plant of Kazakhstan”, Bulgarian Chemical Communications, Special Issue E, 2016, pp. 260-265.
  • [12] Li M., Wang X., Sun S., Zhen X., Li Q., Zhang T., “Influence of Overfire air jet form on low NOx retrofit effect of an opposed firing boiler”, Journal of Chinese society of power engineering, Vol.4, 2015, pp. 263-269.
  • [13] Askarova, A.S., Messerle, V.E., Ustimenko, A.B., Bolegenova, S.A., Maximov, V.Yu. Gabitova, Z.Kh., “Numerical simulation of pulverized coal combustion in a power boiler furnace”, High temperature, Vol.53, No.3, 2015, pp. 445-452.
  • [14] Askarova, A.S., Bolegenova, S.A., Maximov, V.Y., Bekmukhamet, A, Beketayeva M., Gabitova Z., “Control of Harmful Emissions Concentration into the Atmosphere of Megacities of Kazakhstan Republic”, IERI Procedia, International Conference on Future Information Engineering (FIE2014), Beijing, 2014, pp. 252-258.
  • [15] A. Askarova, S. Bolegenova, S. Bolegenova, V. Maximov, R. Manatbayev, A. Yergaliyeva, Z. Gabitova, A. Maxutkhanova, Zh. Shortanbayeva, A. Boranbayeva, K. Berdikhan, “Application of 3D modelling for solving the problem of combustion coal-dust flame”, Bulgarian Chemical Communications, Special Issue E, 2016, pp. 236-241.
  • [16] R. Leithner, A. Askarova, S. Bolegenova, S. Bolegenova, V. Maximov, Sh. Ospanova, A. Ergalieva, A. Nugymanova, M. Beketayeva, “Computational modeling of heat and mass transfer processes in combustion chamber at power plant of Kazakhstan”, MATEC Web of Conferences, 2016, 5p.
  • [17] Askarova, A., Bolegenova, S., Bolegenova, S., Boranbayeva, A., Berdikhan, K., “Application of numerical methods for calculating the burning problems of coal-dust flame in real scale”, International Journal of Applied Engineering Research, Vol.11, No.8, 2016, pp. 5511-5515.
  • [18] Askarova A., Bolegenova S. et al., “Influence of boundary conditions to heat and mass transfer processes”, International Journal of Mechanics, Vol.10, 2016, pp. 320-325.
  • [19] Askarova A., Bolegenova S., Maximov V. et al., “On the effect of the temperature boundary conditions on the walls for the processes of heat and mass transfer”, International Journal of Mechanics, Vol.10, 2016, pp. 349-355.
  • [20] Askarova, A. S., Bolegenova, S.A., Maximov, V.Y., Bekmukhamet, A, Ospanova, S.S., “Numerical research of aerodynamic characteristics of combustion chamber BKZ-75 mining thermal power station”, Procedia Engineering, Vol.42, 2012, pp.1250-1259.
  • [21] Weber K., “Dreidimensionale Simulation der Gas–Festoff–Strömung in kohlegefeuerten Dampferzeugern”, Fortschritt–Berichte VDI–Verlag, Vol.6, No.415, 1999, p. 198.
  • [22] Askarova A.S., Bolegenova S.A., Bolegenova S., Bekmukhamet A., Maximov V.Yu., Beketayeva M.T., “Numerical experimenting of combustion in the real boiler of CHP”, International Journal of Mechanics, Vol.3, No.7, 2013, pp. 343-352.
  • [23] Askarova, A.S., Messerle, V.E., Ustimenko, A.B., Bolegenova, S.A., Maksimov, V.Yu., “Numerical simulation of the coal combustion process initiated by a plasma source”, Thermophysics and aeromechanics, Vol.21, No.6, 2014, pp. 747-754.
  • [24] Aliyarov B.K., Aliyarova M.B. Szhiganie kazahstanskih ugley na TES i na krupnyih kotelnyih: opyit i problemyi, Almatyi, 2012.
  • [25] Leithner R., Müller H., “CFD studies for boilers”, Second M.I.T. Conference on Computational Fluid and Solid Mechanics, Cambridge, 2003, p. 172.
  • [26] Leithner R., Müller H., Heitmüller R., “Dreidimensionale Simulation von Dampferzeuger-Brennkammern einschließlich der NOx-Schadstoffkinetik”, VGB-Fachtagung: Dampfkessel und Dampfkesselbetrieb, Essen, 1993. 152 p.
  • [27] Müller H., “Numerische Berechnung dreidimensionaler turbulenter Strömungen in Dampferzeugern mit Wärmeübergang und chemischen Reactionen am Beispiel des SNCR–Verfahrens und der Kohleverbrennung”, Fortschritt–Berichte VDI-Verlag, 1992, No.268, 158 p.
  • [28] Askarova, A.S., Karpenko, E.I., Karpenko, Yu.E., Messerle, V.E., Ustimenko, A.B., “Mathematical modelling of the processes of solid fuel ignition and combustion at combustors of the power boilers”, 7th International Fall Seminar on Propellants, Explosives and Pyrotechnics. Xian, Vol.7, 2007, pp. 672-683.
  • [29] A.S. Askarova, S.A. Bolegenova, Symbat Bolegenova, V.Yu. Maximov, R. Manatbayev, Zh.K. Shortanbayeva, A.M. Maksutkhanova, A.N. Aldiyarova, A.E.Boranbayeva, “Mathematical modeling of heat and mass transfer in the presence of physical-chemical processes”, Bulgarian Chemical Communications, Special Issue E, 2016, p. 272-277.
  • [30] Askarova, A.S., Maximov, V., Beketayeva, M., Safarik, P., “Numerical Modeling of Pulverized Coal Combustion at Thermal Power Plant Boilers”, Journal of thermal science, Vol. 24, No.3, 2015, pp. 275-282.
  • [31] Zeldovich J., “The oxidation of Nitrogen in combustions and explosions”, Acta Physicochemica, Vol.21, 1946, pp. 557-628.
There are 31 citations in total.

Details

Primary Language English
Subjects Engineering
Journal Section Araştırma Articlessi
Authors

A. Askarova This is me

S. Bolegenova This is me

Publication Date October 28, 2018
Published in Issue Year 2018 Volume: 6 Issue: 4

Cite

APA Askarova, A., & Bolegenova, S. (2018). Application of overfire air technology on an example of a steam boiler PK-39 of the Aksu TPP (Kazakhstan). Balkan Journal of Electrical and Computer Engineering, 6(4), 217-223. https://doi.org/10.17694/bajece.475543

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