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Numerical Simulation Study on the Law of Attenuation of Hydrate Particles in a Gas Transmission Pipeline

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  • Rao Yongchao

    (Jiangsu key laboratory of oil-gas storage and transportation technology, Changzhou, Jiangsu 213164, China
    Changzhou University, School of petroleum engineering, Changzhou, Jiangsu 213164, China)

  • Sun Yi

    (Jiangsu key laboratory of oil-gas storage and transportation technology, Changzhou, Jiangsu 213164, China
    Changzhou University, School of petroleum engineering, Changzhou, Jiangsu 213164, China)

  • Wang Shuli

    (Jiangsu key laboratory of oil-gas storage and transportation technology, Changzhou, Jiangsu 213164, China
    Changzhou University, School of petroleum engineering, Changzhou, Jiangsu 213164, China)

  • Jia Ru

    (Jiangsu key laboratory of oil-gas storage and transportation technology, Changzhou, Jiangsu 213164, China
    Changzhou University, School of petroleum engineering, Changzhou, Jiangsu 213164, China)

Abstract

Based on the swirl flow of gas hydrate pipeline safety flow technology, the numerical simulation method is used to study the attenuation law of hydrate particles, which is of great significance for expanding the boundary of safe flow. The results show that the size of the initial swirl number is mainly related to the twist rate and has nothing to do with the Reynolds number; the smaller the twist rate, the greater the Reynolds number, the greater the number of swirling flow in the same position in the pipeline. The concentration has almost no effect on the change of the swirl number; for the non-dimensional swirl number, and the numerical simulation is roughly the same as the results of the paper, the attenuation coefficient beta and ln (Re) has a linear relationship. The no twist tape is six to eight times larger than the volume fraction of the twisted belt, and the smaller the twist tape twist, the smaller the particle deposition is, the higher the initial concentration of the particles in the pipe, and the larger the volume fraction of the hydrate particles deposited by the tube wall.

Suggested Citation

  • Rao Yongchao & Sun Yi & Wang Shuli & Jia Ru, 2018. "Numerical Simulation Study on the Law of Attenuation of Hydrate Particles in a Gas Transmission Pipeline," Energies, MDPI, vol. 12(1), pages 1-17, December.
    • Handle: RePEc:gam:jeners:v:12:y:2018:i:1:p:58-:d:193132
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    References listed on IDEAS

    as
    1. Yongchao Rao & Ziwen Wang & Shuli Wang & Minguan Yang, 2018. "Investigation on Gas Hydrate Slurry Pressure Drop Properties in a Spiral Flow Loop," Energies, MDPI, vol. 11(6), pages 1-12, May.
    2. Yining Lv & Yintang Guan & Shudi Guo & Qinglan Ma & Jing Gong & Guangjin Chen & Changyu Sun & Kai Guo & Lanying Yang & Bohui Shi & Wei Qin & Yubo Qiao, 2017. "Effects of Combined Sorbitan Monolaurate Anti-Agglomerants on Viscosity of Water-in-Oil Emulsion and Natural Gas Hydrate Slurry," Energies, MDPI, vol. 10(8), pages 1-14, July.
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