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

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

doi:10.1109/TASC.2003.812938

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

M. 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 journal › Conference article › peer-review

12 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 language	English
Pages (from-to)	1882-1885
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	13
Issue number	2 II
DOIs	https://doi.org/10.1109/TASC.2003.812938
Publication status	Published - Jun 2003
Event	2002 Applied Superconductivity Conference - Houston, TX, United States Duration: Aug 4 2002 → Aug 9 2002

All Science Journal Classification (ASJC) codes

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

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10.1109/TASC.2003.812938

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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

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, vol. 13, no. 2 II, pp. 1882-1885. https://doi.org/10.1109/TASC.2003.812938

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

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.",

author = "M. Iwakuma and H. Miyazaki and Y. Fukuda and Kazuhiro Kajikawa and K. Funaki and K. Tsutsumi and H. Hayashi and H. Kimura and A. Tomioka and T. Bohno and Y. Yagi",

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T1 - Ac loss properties of a 4 kJ conduction-cooled pulse coil wound with a Bi2223 6-strand parallel conductor for SMES

AU - Iwakuma, M.

AU - Miyazaki, H.

AU - Fukuda, Y.

AU - Kajikawa, Kazuhiro

AU - Funaki, K.

AU - Tsutsumi, K.

AU - Hayashi, H.

AU - Kimura, H.

AU - Tomioka, A.

AU - Bohno, T.

AU - Yagi, Y.

PY - 2003/6

Y1 - 2003/6

N2 - 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.

AB - 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.

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SP - 1882

EP - 1885

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 2 II

T2 - 2002 Applied Superconductivity Conference

Y2 - 4 August 2002 through 9 August 2002

ER -

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

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