Design of Bi-based superconducting current lead for SMES

Author

Wang, Q.-L. ; Jeong, D.Y. ; Oh, S.S. ; Kim, H.J. ; Cho, J.W. ; Seong, K.C.

Author_Institution

Korea Electrotechnol. Res. Inst., Changwon, South Korea

Volume

9

Issue

2

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

499

Lastpage

502

Abstract

2.1 kA-class hybrid-type current leads for superconducting magnetic energy storage (SMES) magnets, consisting of conventional gas-cooled copper leads and high-T/sub c/ superconducting (HTSC) current leads, were designed. The HTSC parts of the leads are made of Bi-2223/99.8%Ag0.2%Au tape. For the design, numerical analysis was performed to find an optimum shape factor and an optimum varying rate of the cross-sectional area of HTSC lead which result in minimum refrigeration power consumption, and then the minimum evaporation rate of LHe. In the present study, the main results of the design are presented.

Keywords

bismuth compounds; calcium compounds; copper compounds; gold alloys; high-temperature superconductors; silver alloys; strontium compounds; superconducting cables; superconducting magnet energy storage; superconducting magnets; 2.1 kA; Bi-2223/99.8%Ag0.2%Au tape; Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O-AgAu; Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub x/-AgAu HTSC current leads design; SMES applications; cross-sectional area; gas-cooled copper leads; minimum evaporation rate; minimum refrigeration power consumption; numerical analysis; optimum shape factor; optimum varying rate; superconducting magnetic energy storage magnets; Cooling; Copper; High temperature superconductors; Lead; Samarium; Superconducting magnetic energy storage; Superconducting magnets; Temperature distribution; Thermal conductivity;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.783344

Filename

783344