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Study of Flow and Heat Transfer for the Supercritical Hydrogen in Spallation-Type Cylindrical Neutron Moderator

Author

Listed:
  • 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

Pipe height in cylindrical neutron moderator is an important factor to flow pattern, temperature distribution and even the neutron characters. In this paper, the steady-state thermal analysis of cold neutron moderator is carrying out with different heights, conjugated heat transfer method and one-way coupled with a neutron transfer software. The different pipe heights, which is the jet-to-surface distances ( H/D = 0.5~6), were compared using a 2D moderator model. The results show that vortex size and velocity gradient from container wall to vortex center vary with H/D , the center of recirculation zone nearly remain constant, and heat transfer effect is weakened on the target bottom surface. With H/D increasing, the velocity at bottom target surface is progressively decreased, and cooling effect is poor, leading to the rise in temperature. The optimal range cooling performance is ( H/D ) = 0.5~1 at Re = 1.7 × 10 5 , and the enhancement of beam power further strengthens the thermal deposition difference between container and liquid hydrogen. The results can be applied to moderator component design and optimization in the future spallation neutron source.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:18:p:5856-:d:636578
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    References listed on IDEAS

    as
    1. 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.
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    Cited by:

    1. Daehoon Kang & Sungho Yun & Bo-kyong Kim & Jaewon Kim & Gildong Kim & Hyunbae Lee & Sangyeol Choi, 2022. "Numerical Investigation of the Initial Charging Process of the Liquid Hydrogen Tank for Vehicles," Energies, MDPI, vol. 16(1), pages 1-16, December.

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