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

Rao Yongchao, Sun Yi, Wang Shuli and Jia Ru
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Rao Yongchao: Jiangsu key laboratory of oil-gas storage and transportation technology, Changzhou, Jiangsu 213164, China
Sun Yi: Jiangsu key laboratory of oil-gas storage and transportation technology, Changzhou, Jiangsu 213164, China
Wang Shuli: Jiangsu key laboratory of oil-gas storage and transportation technology, Changzhou, Jiangsu 213164, China
Jia Ru: Jiangsu key laboratory of oil-gas storage and transportation technology, Changzhou, Jiangsu 213164, China

Energies, 2018, vol. 12, issue 1, 1-17

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.

Keywords: hydrate particles; safe transportation; swirl flow attenuation; swirl number; numerical simulation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
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