Optimum design of cryogenic pump for circulation cooling of high temperature superconducting cables

Kenta Tadakuma, Kazuhiro Kajikawa, Yasuharu Kamioka, Atsushi Ishiyama, Shinsaku Imagawa, Taketsune Nakamura, Hirokazu Hirai, Shinsuke Ozaki

研究成果: ジャーナルへの寄稿会議記事査読

抄録

Pressure drops and temperature rises caused by the cooling with liquid nitrogen are evaluated for two typical examples of HTS cables. One is the three-in-one-type AC cable located inside a corrugated pipe, and the other is the single-core-type DC cable located inside a straight pipe. The theoretical expressions of pressure drop and temperature rise indicate the contributions from three components such as the friction between the liquid nitrogen and the wetted surfaces, the ratio of the heat input to the mass flow rate of liquid nitrogen and the vertical change of position along the cooling pipe. The numerically estimated results are validated by comparing them with the test results carried out by the other groups. Furthermore, the maximum feeding distance of HTS cable can be determined by adjusting the flow rate of pump if the maximum permissible pressure drop and temperature rise are fixed in advance.

本文言語英語
論文番号012070
ジャーナルJournal of Physics: Conference Series
1293
1
DOI
出版ステータス出版済み - 10月 15 2019
イベント31st International Symposium on Superconductivity, ISS 2018 - Tsukuba, Ibaraki, 日本
継続期間: 12月 12 201812月 14 2018

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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