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Sensitivity Analysis of Influencing Factors of Supercritical Methane Flow and Heat Transfer in a U-Tube

Author

Listed:
  • Lingbo Zhu

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

  • Yiping Lu

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

  • Jianfei Tong

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

  • Tianjiao Liang

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

  • Youlian Lu

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

  • Weida Fu

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

  • Bin Wang

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

  • Yunan Zhang

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

Abstract

Due to the existence of a Dean vortex in a U-tube, the flow and heat transfer process of supercritical methane is complex, and its thermophysical property are greatly influenced by different factors. Based on computational fluid dynamics theory, the numerical simulation of the turbulent flow and heat transfer characteristics of supercritical methane in a U-tube with an inner diameter of 10 mm and a radius of curvature of 27 mm carried out by using the finite volume method. On the basis of verifying the reliability of the model, the influences of inlet mass flux ( G ), heat flux on the tube wall boundary ( q ), pressure on the outlet ( P ), and gravity acceleration factors ( g ) on heat transfer characteristics were analyzed. The calculation results show that the sensitivity of the effects of G , q , P , and g on the heat transfer coefficient is, from large to small, in the order of P , G , g , and q . Compared with a horizontal straight tube, a U-tube can significantly improve heat transfer in the elbow part, but the presence of the elbow reduces heat transfer in the subsequent straight pipe section. The research in this paper has significance as a reference for the construction of the LNG gasification process.

Suggested Citation

  • Lingbo Zhu & Yiping Lu & Jianfei Tong & Tianjiao Liang & Youlian Lu & Weida Fu & Bin Wang & Yunan Zhang, 2021. "Sensitivity Analysis of Influencing Factors of Supercritical Methane Flow and Heat Transfer in a U-Tube," Energies, MDPI, vol. 14(18), pages 1-15, September.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:18:p:5714-:d:633030
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    References listed on IDEAS

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    1. Marcos André de Oliveira & Paulo Guimarães de Moraes & Crystianne Lilian de Andrade & Alex Mendonça Bimbato & Luiz Antonio Alcântara Pereira, 2020. "Control and Suppression of Vortex Shedding from a Slightly Rough Circular Cylinder by a Discrete Vortex Method," Energies, MDPI, vol. 13(17), pages 1-23, August.
    2. Lei, Xianliang & Zhang, Jun & Gou, Lingtong & Zhang, Qian & Li, Huixiong, 2019. "Experimental study on convection heat transfer of supercritical CO2 in small upward channels," Energy, Elsevier, vol. 176(C), pages 119-130.
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    Cited by:

    1. Weida Fu & Yiping Lu & Fei Shen & Longwei Mei & Songlin Wang & Youlian Lu & Lingbo Zhu & Shinian Fu & Jianfei Tong, 2022. "Study on Convective Heat Transfer Characteristics of Supercritical Liquid Hydrogen in a U-Type Tube inside a Moderator," Energies, MDPI, vol. 15(10), pages 1-15, May.

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