Title :
24 Tesla superconducting toroidal field magnet concept for a commercial Tokamak reactor
Author :
Schwartz, J. ; Bromberg, L. ; Cohn, D.R. ; Williams, J.E.C.
Author_Institution :
Dept. of Nucl. Eng., Illinois Univ., Urbana, IL, USA
fDate :
3/1/1991 12:00:00 AM
Abstract :
A 24-T superconducting toroidal field magnet concept for a commercial fusion power reactor is discussed, and a magnet development path is outlined. Superconducting and structural materials options are discussed within the framework of a 20-yr development time. Nb3 Sn may be capable of operating at up to 18-20 T. For B>20 T, Nb3Al, Nb3(Al,Ge) or ceramic high-Tc superconductors are required. Enhanced strength and stiffness and reduced conductor bending stress are obtained with carbon fiber reinforced steel (Incoloy 908) as the primary structural material. Composite behavior is analyzed using a two-dimensional orthotropic failure criterion. The size of the magnet is minimized subject to electromagnetic, mechanical, and practical constraints
Keywords :
Tokamak devices; fusion reactor theory and design; high-temperature superconductors; niobium alloys; superconducting magnets; 24 T; Incoloy 908; Nb3(AlGe); Nb3Sn; Tokamak reactor; ceramic high-Tc superconductors; conductor bending stress; fusion power reactor; magnet development path; size; stiffness; strength; structural materials; superconducting toroidal field magnet; two-dimensional orthotropic failure criterion; Ceramics; Conducting materials; Inductors; Magnetic materials; Niobium; Superconducting magnets; Superconducting materials; Superconductivity; Tin; Toroidal magnetic fields;
Journal_Title :
Magnetics, IEEE Transactions on
