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Heat Transfer Analysis in Supercritical Hydrogen of Decoupled Poisoned Hydrogen Moderator with Non-Uniform Heat Source of Chinese Spallation Neutron Source

Author

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  • Jianfei Tong

    (School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
    Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
    Spallation Neutron Source Science Center, Dongguan 523803, China)

  • Lingbo Zhu

    (Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
    Spallation Neutron Source Science Center, Dongguan 523803, China
    Department of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin 150001, China)

  • Yiping Lu

    (Department of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin 150001, China)

  • Tianjiao Liang

    (Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
    Spallation Neutron Source Science Center, Dongguan 523803, China)

  • Youlian Lu

    (Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
    Spallation Neutron Source Science Center, Dongguan 523803, China)

  • Songlin Wang

    (Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
    Spallation Neutron Source Science Center, Dongguan 523803, China)

  • Chaoju Yu

    (Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
    Spallation Neutron Source Science Center, Dongguan 523803, China)

  • Shikui Dong

    (School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)

  • Heping Tan

    (School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)

Abstract

The flow field distribution and thermal properties of supercritical hydrogen are crucial factors affecting the quality of neutrons output from spallation neutron source, which may contribute to the optimization design of the moderator. Several sensitivity studies on affecting heat transfer characteristics of liquid hydrogen inside a moderator were executed, and a choice was made to use a computational fluid dynamics method for numerical simulation. The sensitivity degree of factors affecting the heat transfer characteristics of liquid hydrogen are in sequence of inlet mass flow, beam power and operating pressure. Especially when the beam power is 500 kW (the temperature range of liquid hydrogen is about 20~30 K); where the effect of mass flow rate is remarkable, the cooling effect is best in the range of 60~90 g/s × 394 mm 2 . Meanwhile, the maximum temperature of liquid hydrogen is close to the bottom recirculation zone due to the influence of the flow field and the heat deposition distribution of the poisoned plate. The effect of variable pressure on the temperature of liquid hydrogen is not significant, whereas the sudden rise of wall temperature is observed near the large specific heat region of 15 bar.

Suggested Citation

  • Jianfei Tong & Lingbo Zhu & Yiping Lu & Tianjiao Liang & Youlian Lu & Songlin Wang & Chaoju Yu & Shikui Dong & Heping Tan, 2021. "Heat Transfer Analysis in Supercritical Hydrogen of Decoupled Poisoned Hydrogen Moderator with Non-Uniform Heat Source of Chinese Spallation Neutron Source," Energies, MDPI, vol. 14(15), pages 1-17, July.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:15:p:4547-:d:602650
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    References listed on IDEAS

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    1. Jianfei Tong & Lingbo Zhu & Yiping Lu & Tianjiao Liang & Youlian Lu & Songlin Wang & Chaoju Yu & Shikui Dong & Heping Tan, 2021. "Study of Flow and Heat Transfer for the Supercritical Hydrogen in Spallation-Type Cylindrical Neutron Moderator," Energies, MDPI, vol. 14(18), pages 1-20, September.

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