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Numerical Research of the Modification of the Combustion System in the OP 650 Boiler

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  • Bartłomiej Hernik

    (Department of Power Engineering and Turbomachinery, Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland)

Abstract

Changes in the combustion system are one of the paths leading to improved combustion quality. This is manifested by a reduction of the unburnt carbon in fly ash and slag and a reduction in harmful emissions. The article presents the numerical analysis of the modification of the combustion system in the OP 650 boiler. The modifications consisted of changing the direction of swirl of the dust–air mixture in individual burners and changing the distribution of air to Over-Fire Air (OFA) nozzles. These had an impact on NOx and CO emissions and the temperature achieved at the outlet of the chamber. The content of O 2 , CO, and NOx emissions, flue gas temperature at the outlet from the chamber, flue gas temperature after the platen superheater, as well as temperature at the outlet from the model were presented. The percentage of coal flow directed towards the slag hopper was also noted.

Suggested Citation

  • Bartłomiej Hernik, 2020. "Numerical Research of the Modification of the Combustion System in the OP 650 Boiler," Energies, MDPI, vol. 13(3), pages 1-22, February.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:3:p:725-:d:317694
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    References listed on IDEAS

    as
    1. Ma, Lun & Fang, Qingyan & Tan, Peng & Zhang, Cheng & Chen, Gang & Lv, Dangzhen & Duan, Xuenong & Chen, Yiping, 2016. "Effect of the separated overfire air location on the combustion optimization and NOx reduction of a 600MWe FW down-fired utility boiler with a novel combustion system," Applied Energy, Elsevier, vol. 180(C), pages 104-115.
    2. Chen, Shinan & He, Boshu & He, Di & Cao, Yang & Ding, Guangchao & Liu, Xuan & Duan, Zhipeng & Zhang, Xin & Song, Jingge & Li, Xuezheng, 2017. "Numerical investigations on different tangential arrangements of burners for a 600 MW utility boiler," Energy, Elsevier, vol. 122(C), pages 287-300.
    3. Marco Torresi & Francesco Fornarelli & Bernardo Fortunato & Sergio Mario Camporeale & Alessandro Saponaro, 2017. "Assessment against Experiments of Devolatilization and Char Burnout Models for the Simulation of an Aerodynamically Staged Swirled Low-NO x Pulverized Coal Burner," Energies, MDPI, vol. 10(1), pages 1-24, January.
    4. Hyunbin Jo & Kiseop Kang & Jongkeun Park & Changkook Ryu & Hyunsoo Ahn & Younggun Go, 2019. "Optimization of Air Distribution to Reduce NOx Emission and Unburned Carbon for the Retrofit of a 500 MWe Tangential-Firing Coal Boiler," Energies, MDPI, vol. 12(17), pages 1-20, August.
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    Cited by:

    1. Tomasz Hardy & Sławomir Kakietek & Krzysztof Halawa & Krzysztof Mościcki & Tomasz Janda, 2020. "Determination of High Temperature Corrosion Rates of Steam Boiler Evaporators Using Continuous Measurements of Flue Gas Composition and Neural Networks," Energies, MDPI, vol. 13(12), pages 1-17, June.
    2. Bartłomiej Hernik, 2022. "Numerical Research of Flue Gas Denitrification Using the SNCR Method in an OP 650 Boiler," Energies, MDPI, vol. 15(9), pages 1-21, May.

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