Development of a liquid hydrogen transfer pump system with MgB 2 wires

Kazuhiro Kajikawa, Hirotsugu Kuga, Takuro Inoue, Kazuki Watanabe, Yushi Uchida, Taketsune Nakamura, Hiroaki Kobayashi, Motoyuki Hongo, Takayuki Kojima, Hideyuki Taguchi, Yoshihiro Naruo, Tsuyoshi Wakuda, Kazuhide Tanaka

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

An electric pump composed of an MgB 2 motor is combined with superconducting level sensors using thin CuNi-sheathed MgB 2 wires to transfer liquid hydrogen. An impeller is attached to the lower end of a rotating shaft on the MgB 2 motor and covered with an outer casing to form a centrifugal pump. Then, the MgB 2 motor and impeller are placed vertically inside a cryostat with an infill of liquid hydrogen. A glass Dewar vessel is prepared to receive the liquid hydrogen transferred from the cryostat containing the MgB 2 motor. The MgB 2 sensors are used not only to detect the level of liquid hydrogen but also to control the electric pump on the basis of their pre-estimated calibration curves. By using the assembled pump system, the liquid hydrogen is successfully transferred from the cryostat to the glass Dewar vessel via a transfer tube.

Original languageEnglish
Pages (from-to)615-619
Number of pages5
JournalCryogenics
Volume52
Issue number11
DOIs
Publication statusPublished - Nov 1 2012

Fingerprint

liquid hydrogen
Hydrogen
Pumps
wire
Wire
Cryostats
pumps
cryostats
Liquids
Dewars
vessels
rotating shafts
centrifugal pumps
Glass
casing
glass
Centrifugal pumps
sensors
Sensors
Calibration

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Kajikawa, K., Kuga, H., Inoue, T., Watanabe, K., Uchida, Y., Nakamura, T., ... Tanaka, K. (2012). Development of a liquid hydrogen transfer pump system with MgB 2 wires. Cryogenics, 52(11), 615-619. https://doi.org/10.1016/j.cryogenics.2012.08.007

Development of a liquid hydrogen transfer pump system with MgB 2 wires. / Kajikawa, Kazuhiro; Kuga, Hirotsugu; Inoue, Takuro; Watanabe, Kazuki; Uchida, Yushi; Nakamura, Taketsune; Kobayashi, Hiroaki; Hongo, Motoyuki; Kojima, Takayuki; Taguchi, Hideyuki; Naruo, Yoshihiro; Wakuda, Tsuyoshi; Tanaka, Kazuhide.

In: Cryogenics, Vol. 52, No. 11, 01.11.2012, p. 615-619.

Research output: Contribution to journalArticle

Kajikawa, K, Kuga, H, Inoue, T, Watanabe, K, Uchida, Y, Nakamura, T, Kobayashi, H, Hongo, M, Kojima, T, Taguchi, H, Naruo, Y, Wakuda, T & Tanaka, K 2012, 'Development of a liquid hydrogen transfer pump system with MgB 2 wires', Cryogenics, vol. 52, no. 11, pp. 615-619. https://doi.org/10.1016/j.cryogenics.2012.08.007
Kajikawa, Kazuhiro ; Kuga, Hirotsugu ; Inoue, Takuro ; Watanabe, Kazuki ; Uchida, Yushi ; Nakamura, Taketsune ; Kobayashi, Hiroaki ; Hongo, Motoyuki ; Kojima, Takayuki ; Taguchi, Hideyuki ; Naruo, Yoshihiro ; Wakuda, Tsuyoshi ; Tanaka, Kazuhide. / Development of a liquid hydrogen transfer pump system with MgB 2 wires. In: Cryogenics. 2012 ; Vol. 52, No. 11. pp. 615-619.
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