Title :
Design consideration of the ITER-TF coil with a react-and-wind technique using Nb3Al conductor
Author :
Ando, T. ; Sugimoto, M. ; Koizumi, N. ; Nunoya, Y. ; Matsui, K. ; Nishi, M. ; Tsuji, H. ; Shimamoto, S.
Author_Institution :
Naka Fusion Res. Establ., JAERI, Ibaraki, Japan
fDate :
7/1/1996 12:00:00 AM
Abstract :
The ITER-TF coil requires a generation of 12.5 T in a size of 12 m×18 m. For such a high field-large coil, the applicability of Nb 3Al conductors was considered with a react-and-wind technique which realizes high reliability and low cost for the coil fabrication. The maximum bending strain on the Nb3Al conductor in use of this technique is 0.39%. Ic degradation due to the strain is expected to be below 5%. The limiting current is estimated as 65 kA for 60 kA operation current. AC loss in the TF coil with Nb3Al conductor is almost the same as with Nb3Sn conductor
Keywords :
aluminium alloys; electron device manufacture; fusion reactor materials; fusion reactors; niobium alloys; superconducting cables; superconducting coils; superconducting magnets; superconducting materials; winding (process); 12 m; 12.5 T; 18 m; 60 kA; 65 kA; AC loss; ITER; Nb3Al; bending strain; coil fabrication; cost; design consideration; operation current; react-and-wind technique; reliability; toroidal field superconducting coils; Artificial intelligence; Capacitive sensors; Conductors; Costs; Degradation; Equations; Fabrication; Magnetic field induced strain; Niobium; Superconducting coils;
Journal_Title :
Magnetics, IEEE Transactions on
