Ac loss properties of a 4 kJ conduction-cooled pulse coil wound with a Bi2223 6-strand parallel conductor for SMES

Masataka Iwakuma, H. Miyazaki, Y. Fukuda, Kazuhiro Kajikawa, K. Funaki, K. Tsutsumi, H. Hayashi, H. Kimura, A. Tomioka, T. Bohno, Y. Yagi

Research output: Contribution to journalConference article

10 Citations (Scopus)

Abstract

We designed and fabricated a 4 kJ conduction-cooled superconducting pulse coil with a 6-strand interlayer-transposed parallel conductor composed of B12223 multifilamentary tapes. We adopted the helium gas forced-flow cooling system where the helium gas flowed inside a copper pipe soldered with the flanges of brass. We succeeded in the continuous pulse operation with an amplitude of 500 A-1.6 T at a sweep rate of 140 A/s at 30 K as designed. Even in the ac operation with an ac loss of 120 W, the difference in temperature inside the winding was only 5 K and it was possible to hold the coil temperature around 30 K. In this paper, we report the design and the test results of the coil system from the aspect of ac loss and thermal properties.

Original languageEnglish
Pages (from-to)1882-1885
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume13
Issue number2 II
DOIs
Publication statusPublished - Jun 1 2003
Event2002 Applied Superconductivity Conference - Houston, TX, United States
Duration: Aug 4 2002Aug 9 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Ac loss properties of a 4 kJ conduction-cooled pulse coil wound with a Bi2223 6-strand parallel conductor for SMES'. Together they form a unique fingerprint.

  • Cite this

    Iwakuma, M., Miyazaki, H., Fukuda, Y., Kajikawa, K., Funaki, K., Tsutsumi, K., Hayashi, H., Kimura, H., Tomioka, A., Bohno, T., & Yagi, Y. (2003). Ac loss properties of a 4 kJ conduction-cooled pulse coil wound with a Bi2223 6-strand parallel conductor for SMES. IEEE Transactions on Applied Superconductivity, 13(2 II), 1882-1885. https://doi.org/10.1109/TASC.2003.812938