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Thermal–Hydraulic Calculation and Analysis on Water Wall System of a 700 MWe Ultra-Supercritical CFB Boiler

Author

Listed:
  • Haowen Wu

    (Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China)

  • Tuo Zhou

    (Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China)

  • Xiannan Hu

    (Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China)

  • Yongjun Luo

    (Shanghai Boiler Works Co., Ltd., Shanghai 200245, China)

  • Man Zhang

    (Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China)

  • Hairui Yang

    (Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China
    State Key Laboratory of Power Systems, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China)

Abstract

Ultra-supercritical circulating fluidized bed (CFB) boiler combustion technology has the advantages of environmental protection and good commercialization. As one of the key aspects in ultra-supercritical CFB combustion technology, the water wall system directly determines whether the CFB boiler can safely and effectively transform heat energy. This paper studies the thermal–hydraulic characteristics of the designed water wall system of a 700 MWe ultra-supercritical CFB boiler, the largest one that will be built next year. At four loads of the water wall system, hydrodynamic parameters are calculated based on the successfully verified mathematical models. The results show that the hydrodynamic characteristics of the system are good. The temperature distribution of the working fluid and metal of the water wall system is acceptable and safe at each load, which can support the technical development and improvement of the 700 MWe ultra-supercritical CFB boiler.

Suggested Citation

  • Haowen Wu & Tuo Zhou & Xiannan Hu & Yongjun Luo & Man Zhang & Hairui Yang, 2023. "Thermal–Hydraulic Calculation and Analysis on Water Wall System of a 700 MWe Ultra-Supercritical CFB Boiler," Energies, MDPI, vol. 16(11), pages 1-11, May.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:11:p:4344-:d:1156268
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    References listed on IDEAS

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    1. Shengwei Xin & Hu Wang & Jianbo Li & Gang Wang & Quanhai Wang & Peiqing Cao & Peng Zhang & Xiaofeng Lu, 2022. "Discussion on the Feasibility of Deep Peak Regulation for Ultra-Supercritical Circulating Fluidized Bed Boiler," Energies, MDPI, vol. 15(20), pages 1-12, October.
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