IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v173y2019icp1006-1020.html

Numerical simulation research on the unique thermal deviation in a 1000 MW tower type boiler

Author

Listed:
  • Wu, Xiaofeng
  • Fan, Weidong
  • Liu, Yacheng
  • Bian, Bao

Abstract

In this paper, a comprehensive numerical simulation, which was verified by measurement and design data, was conducted to investigate the issues of thermal deviation in a 1000 MW tower type boiler. Based on this, the cause of thermal deviation was found: a large swirling momentum intensity in the furnace leads to a great deflection of SOFA and then unburned carbon in fly ash gathering in the furnace center is extremely hard to be burn out. At last, a high temperature flame ring occurs at the gas entrance of platen heater zone, resulting in the thermal load deviation of platen heaters. The influences of deflection angle of SOFA nozzles and the main burners in the primary combustion zone were also investigated. The results show that an optimal deflection angle of SOFA nozzles and the main burners in the primary combustion zone can reduce the thermal deviation by decreasing the swirling momentum intensity in the whole area of full furnace. It suggests that modifying the deflection angle of SOFA nozzles to −18° is the best strategy for realizing a minimum thermal deviation case. The results of test on a real boiler adopting this best strategy show that it is effective to reduce thermal deviation.

Suggested Citation

  • Wu, Xiaofeng & Fan, Weidong & Liu, Yacheng & Bian, Bao, 2019. "Numerical simulation research on the unique thermal deviation in a 1000 MW tower type boiler," Energy, Elsevier, vol. 173(C), pages 1006-1020.
    • Handle: RePEc:eee:energy:v:173:y:2019:i:c:p:1006-1020
    DOI: 10.1016/j.energy.2019.02.151
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544219303500
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2019.02.151?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to

    for a different version of it.

    References listed on IDEAS

    as
    1. Xu, Gang & Xu, Cheng & Yang, Yongping & Fang, Yaxiong & Zhou, Luyao & Zhang, Kai, 2014. "Novel partial-subsidence tower-type boiler design in an ultra-supercritical power plant," Applied Energy, Elsevier, vol. 134(C), pages 363-373.
    2. Liu, Yacheng & Fan, Weidong & Li, Yu, 2016. "Numerical investigation of air-staged combustion emphasizing char gasification and gas temperature deviation in a large-scale, tangentially fired pulverized-coal boiler," Applied Energy, Elsevier, vol. 177(C), pages 323-334.
    3. Li, Yu & Fan, Weidong, 2016. "Effect of char gasification on NOx formation process in the deep air-staged combustion in a 20kW down flame furnace," Applied Energy, Elsevier, vol. 164(C), pages 258-267.
    4. Wang, Junchao & Fan, Weidong & Li, Yu & Xiao, Meng & Wang, Kang & Ren, Peng, 2012. "The effect of air staged combustion on NOx emissions in dried lignite combustion," Energy, Elsevier, vol. 37(1), pages 725-736.
    5. Sha, Long & Liu, Hui & Xu, Lianfei & Cao, Qingxi & Li, Qi & Wu, Shaohua, 2012. "Research on the elliptic aerodynamic field in a 1000 MW dual circle tangential firing single furnace ultra supercritical boiler," Energy, Elsevier, vol. 46(1), pages 364-373.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Li, Zixiang & Qiao, Xinqi & Miao, Zhengqing, 2021. "A novel burner arrangement scheme with annularly combined multiple airflows for wall-tangentially fired pulverized coal boiler," Energy, Elsevier, vol. 222(C).
    2. Yang, D.L. & Tang, G.H. & Fan, Y.H. & Li, X.L. & Wang, S.Q., 2020. "Arrangement and three-dimensional analysis of cooling wall in 1000 MW S–CO2 coal-fired boiler," Energy, Elsevier, vol. 197(C).
    3. Li, Zixiang & Miao, Zhengqing & Shen, Xusheng & Li, Jiangtao, 2018. "Effects of momentum ratio and velocity difference on combustion performance in lignite-fired pulverized boiler," Energy, Elsevier, vol. 165(PA), pages 825-839.
    4. Zeng, Guang & Xu, Mingchen & Tu, Yaojie & Li, Zhenwei & Cai, Yongtie & Zheng, Zhimin & Tay, Kunlin & Yang, Wenming, 2020. "Influences of initial coal concentration on ignition behaviors of low-NOx bias combustion technology," Applied Energy, Elsevier, vol. 278(C).
    5. Li, Zixiang & Qiao, Xinqi & Miao, Zhengqing, 2021. "Low load performance of tangentially-fired boiler with annularly combined multiple airflows," Energy, Elsevier, vol. 224(C).
    6. Liang, Zhanwei & Chen, Hongwei & Zhao, Bin & Jia, Jiandong & Cheng, Kai, 2018. "Synergetic effects of firing gases/coal blends and adopting deep air staging on combustion characteristics," Applied Energy, Elsevier, vol. 228(C), pages 499-511.
    7. Lijun Sun & Miao Wang & Peian Chong & Yunhao Shao & Lei Deng, 2025. "Numerical Simulation of a 330 MW Tangentially Fired Boiler by a Model Coupling CFD and Hydrodynamic Calculation," Energies, MDPI, vol. 18(10), pages 1-19, May.
    8. Xu, Cheng & Xin, Tuantuan & Xu, Gang & Li, Xiaosa & Liu, Wenyi & Yang, Yongping, 2017. "Thermodynamic analysis of a novel solar-hybrid system for low-rank coal upgrading and power generation," Energy, Elsevier, vol. 141(C), pages 1737-1749.
    9. Ouyang, Ziqu & Song, Wenhao & Li, Shiyuan & Liu, Jingzhang & Ding, Hongliang, 2020. "Experiment study on NOx emission characteristics of the ultra-low volatile fuel in a 2 MW novel pulverized fuel self-sustained preheating combustor," Energy, Elsevier, vol. 209(C).
    10. Yiwei Wang & Yuan Wang & Sunhua Deng & Qiang Li & Jingjing Gu & Haoche Shui & Wei Guo, 2022. "Numerical Simulation Analysis of Heating Effect of Downhole Methane Catalytic Combustion Heater under High Pressure," Energies, MDPI, vol. 15(3), pages 1-23, February.
    11. 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.
    12. Zhong, Yu-Xiu & Wang, Xin & Xu, Gang & Ning, Xinyu & Zhou, Lin & Tang, Wen & Wang, Ming-Hao & Wang, Tong & Xu, Jun & Jiang, Long & Wang, Yi & Su, Sheng & Hu, Song & Xiang, Jun, 2023. "Investigation on slagging and high-temperature corrosion prevention and control of a 1000 MW ultra supercritical double tangentially fired boiler," Energy, Elsevier, vol. 275(C).
    13. Wenshuai Wang & Mo Yang, 2024. "Numerical and Experimental Study on Nonlinear Phenomena and Thermal Deviation Control in a 1000 MW Tower-Type Boiler," Energies, MDPI, vol. 17(6), pages 1-32, March.
    14. Ling, Zhongqian & Ling, Bo & Kuang, Min & Li, Zhengqi & Lu, Ye, 2017. "Comparison of airflow, coal combustion, NOx emissions, and slagging characteristics among three large-scale MBEL down-fired boilers manufactured at different times," Applied Energy, Elsevier, vol. 187(C), pages 689-705.
    15. Shan, Shiquan & Tian, Jialu & Chen, Binghong & Zhang, Yanwei & Zhou, Zhijun, 2023. "Theoretical and technical analysis of the photo-thermal energy cascade conversion for fuel with high-temperature combustion," Energy, Elsevier, vol. 263(PD).
    16. Kanmaniraja Radhakrishnan & Jun Su Park, 2024. "Flow and Heat Transfer Characteristics of Superheater Tube of a Pulverized Coal-Fired Boiler Using Conjugate Heat Transfer Modeling," Energies, MDPI, vol. 17(5), pages 1-20, February.
    17. Cong, Kunlin & Zhang, Yanguo & Han, Feng & Li, Qinghai, 2019. "Influence of particle sizes on combustion characteristics of coal particles in oxygen-deficient atmosphere," Energy, Elsevier, vol. 170(C), pages 840-848.
    18. Zeng, Guang & Zhou, Anqi & Fu, Jinming & Ji, Yang, 2022. "Experimental and numerical investigations on NOx formation and reduction mechanisms of pulverized-coal stereo-staged combustion," Energy, Elsevier, vol. 261(PB).
    19. Wang, Xin & Fan, Weidong & Chen, Jun & Zhang, Hai, 2024. "Experimental study of effect of a novel ammonia/coal co-firing mode on NOx emission under high temperature conditions," Renewable Energy, Elsevier, vol. 235(C).
    20. Han, Xiaoqu & Liu, Ming & Wang, Jinshi & Yan, Junjie & Liu, Jiping & Xiao, Feng, 2014. "Simulation study on lignite-fired power system integrated with flue gas drying and waste heat recovery – Performances under variable power loads coupled with off-design parameters," Energy, Elsevier, vol. 76(C), pages 406-418.

    More about this item

    Keywords

    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:173:y:2019:i:c:p:1006-1020. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.