Strand movements in cable-in-conduit conductors

Author

Takahata, Kazuya ; Satow, Takashi

Author_Institution

Nat. Inst. of Fusion Sci., Gifu, Japan

Volume

12

Issue

1

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

1747

Lastpage

1750

Abstract

The compression tests with dummy bundles have been performed to investigate the strand movements in cable-in-conduit conductors. The bundle consists of 20 mm long vinyl tubes. The cross section of the bundle is a round-cornered rectangle of 10 mm × 20 mm. Body force was applied in the transverse direction by means of a pressurized argon gas flow at room temperature. Pressure gradient in the bundle produced body force acting on each strand. The strand movements were observed with a CCD camera. Surface pressure was also applied with a piston, and a comparison has been made between two methods. Influence of a sub-bundle structure on the movements is also investigated.

Keywords

compressive testing; electromagnetic forces; multifilamentary superconductors; superconducting cables; superconducting magnets; body force; cable-in-conduit conductors; compression tests; electromagnetic force; fusion magnet; load-displacement curves; multi-strand bundles; pressure gradient; pressurized argon gas flow; room temperature; round-cornered rectangle; strand movements; sub-bundle structure; surface pressure; vinyl tubes; Argon; Charge coupled devices; Charge-coupled image sensors; Conductors; Electromagnetic forces; Fluid flow; Performance evaluation; Pistons; Power cables; Testing;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2002.1018745

Filename

1018745