Title :
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
fDate :
6/1/1999 12:00:00 AM
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;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
