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Numerical Study on Pool Film Boiling of Liquid Hydrogen over Horizontal Cylinders

Author

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  • Jiaojiao Wang

    (State Key Laboratory of Technologies in Space Cryogenic Propellants, Beijing 100028, China
    Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi’an 710038, China)

  • Yanzhong Li

    (State Key Laboratory of Technologies in Space Cryogenic Propellants, Beijing 100028, China
    Institute of Refrigerating & Cryogenic Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Lei Wang

    (Institute of Refrigerating & Cryogenic Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

Abstract

Due to the low boiling point of hydrogen, the boiling phenomenon is usually encountered in the applications of liquid hydrogen. The underlying mechanism as well as the physical performance of film boiling over horizontal cylinders are not yet fully understood, especially for the various diameters. In this paper, pool film boiling of hydrogen over horizontal cylinders with diameters ranging from 0.2 to 30 mm is investigated based on the volume-of-fluid method. By the analysis of the gas–liquid interface evolution and the heat transfer mechanism, the cylinders are divided into wire heaters, transition heaters, and tube heaters. The results show that the heat transfer of the wire is affected by the evolution of a single bubble, while the heat transfer of the tube is mainly affected by the movement of multiple crescent-shaped gas structures along the surface. Besides, with the increase in cylinder diameter, the bubble detachment diameter increases, the heat flux decreases correspondingly, and the bubble growth period experiences a complicated principle.

Suggested Citation

  • Jiaojiao Wang & Yanzhong Li & Lei Wang, 2022. "Numerical Study on Pool Film Boiling of Liquid Hydrogen over Horizontal Cylinders," Energies, MDPI, vol. 15(3), pages 1-18, January.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:3:p:1044-:d:738932
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    Citations

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    Cited by:

    1. Onur Muhammed Sarikaya & Mustafa Kuzay & Sibel Yilmaz & Ender Demirel, 2024. "Development and Optimization of a Micro-Baffle for the Enhancement of Heat Transfer in Film Boiling," Energies, MDPI, vol. 17(20), pages 1-15, October.
    2. Lei Wang & Peijie Sun & Li Yan & Shi Shangguan & Miao Qu & Yanzhong Li, 2022. "CFD Investigation on Movement Features of Hydrogen Bubble under Microgravity Environment," Energies, MDPI, vol. 15(20), pages 1-18, October.
    3. Daehoon Kang & Sungho Yun & Bo-kyong Kim, 2022. "Review of the Liquid Hydrogen Storage Tank and Insulation System for the High-Power Locomotive," Energies, MDPI, vol. 15(12), pages 1-13, June.

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