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Dynamic Simulation of MFT and BT Processes on a 660 MW Ultra-Supercritical Circulating Fluidized Bed Boiler

Author

Listed:
  • Guo Li

    (Clean Combustion and Flue Gas Purification Key Laboratory of Sichuan Province, Chengdu 611731, China
    Dongfang Boiler Group Co., Ltd., Zigong 643001, China)

  • Xiangyu Tao

    (School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China)

  • Zonglong Zhang

    (School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China)

  • Chen Yang

    (School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China)

  • Qigang Deng

    (Clean Combustion and Flue Gas Purification Key Laboratory of Sichuan Province, Chengdu 611731, China
    Dongfang Boiler Group Co., Ltd., Zigong 643001, China)

  • Li Nie

    (Clean Combustion and Flue Gas Purification Key Laboratory of Sichuan Province, Chengdu 611731, China
    Dongfang Boiler Group Co., Ltd., Zigong 643001, China)

  • Wei He

    (Clean Combustion and Flue Gas Purification Key Laboratory of Sichuan Province, Chengdu 611731, China
    Dongfang Boiler Group Co., Ltd., Zigong 643001, China)

  • Weicheng Li

    (Clean Combustion and Flue Gas Purification Key Laboratory of Sichuan Province, Chengdu 611731, China
    Dongfang Boiler Group Co., Ltd., Zigong 643001, China)

  • Jiayi Lu

    (Clean Combustion and Flue Gas Purification Key Laboratory of Sichuan Province, Chengdu 611731, China
    Dongfang Boiler Group Co., Ltd., Zigong 643001, China)

  • Liming Gong

    (Clean Combustion and Flue Gas Purification Key Laboratory of Sichuan Province, Chengdu 611731, China
    Dongfang Boiler Group Co., Ltd., Zigong 643001, China)

Abstract

In order to study the dynamic characteristics of the 660 MW ultra-supercritical circulating fluidized bed (CFB) boiler when the main fuel trip (MFT) and boiler trip (BT) are triggered, a dynamic simulation model of the 660 MW ultra-supercritical circulating fluidized bed boiler was established on the Apros simulation platform. The model dynamically simulated the MFT and BT processes at 100% BMCR, 75% THA, and 50% THA conditions, respectively. The steady-state simulation results showed a high accuracy compared with the designed parameters. The dynamic simulation results showed that after triggering the MFT and BT, owing to the huge thermal inertia, the bed temperature and steam temperature decreased lowly. For 100% BMCR and 75% THA conditions, the moisture separator always worked in dry state during the MFT and BT processes. For the 50% THA condition, the moisture separator quickly switched from dry to wet operation after the boiler triggers MFT and BT and gradually switched from wet to dry operation after MFT and BT were reset.

Suggested Citation

  • Guo Li & Xiangyu Tao & Zonglong Zhang & Chen Yang & Qigang Deng & Li Nie & Wei He & Weicheng Li & Jiayi Lu & Liming Gong, 2023. "Dynamic Simulation of MFT and BT Processes on a 660 MW Ultra-Supercritical Circulating Fluidized Bed Boiler," Energies, MDPI, vol. 16(5), pages 1-13, February.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:5:p:2309-:d:1082618
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    References listed on IDEAS

    as
    1. Zhu, Shahong & Zhang, Man & Huang, Yiqun & Wu, Yuxin & Yang, Hairui & Lyu, Junfu & Gao, Xinyu & Wang, Fengjun & Yue, Guangxi, 2019. "Thermodynamic analysis of a 660 MW ultra-supercritical CFB boiler unit," Energy, Elsevier, vol. 173(C), pages 352-363.
    2. Li Nie & Jiayi Lu & Qigang Deng & Liming Gong & Dayong Xue & Zhongzhi Yang & Xiaofeng Lu, 2022. "Study on the Uniformity of Secondary Air of a 660 MW Ultra-Supercritical CFB Boiler," Energies, MDPI, vol. 15(10), pages 1-12, May.
    3. Chen Yang & Zonglong Zhang & Haochuang Wu & Kangjie Deng, 2022. "Dynamic Characteristics Analysis of a 660 MW Ultra-Supercritical Circulating Fluidized Bed Boiler," Energies, MDPI, vol. 15(11), pages 1-20, May.
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