Desgn of a 20-MJ superconducting ohmic-heating coil. [NbTi and Nb/sub 3/Sn] [electronic resource].
- Pittsburgh, Pa. : Westinghouse Electric Corporation, 1979. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: 7 : digital, PDF file
- Additional Creators:
- Westinghouse Electric Corporation and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Conceptual designs of 20-MJ superconducting coils which were developed to demonstrate the feasibility of an ohmic-heating system were discussed. The superconductor materials were NbTi and Nb/sub 3/Sn for the pool boil and forced-flow cooling, respectively. The coils were designed to be cryostable for bipolar operation from +7 to -7 tesla maximum field within one second. The structural design addresses the distribution of structure and structural materials used in the pulsed field environment. The cyclic stresses anticipated and the fatigue limits of the structural materials were examined in view of the operating life of the coil. The coils were designed to generate the flux swings while simultaneously meeting the limitations imposed by cooling, insulation, current density and the stresses in the materials. Both the pool and forced cooled conductors have the same criterion for cryostability, i.e., the conductor must return to the superconducting state from an initial temperature of 20/sup 0/K while the full transport current is flowing through the conductor.
- Published through SciTech Connect., 01/01/1979., "la-ur-79-3260", " conf-791102-52", 8. symposium on engineering problems of fusion research, San Francisco, CA, USA, 13 Nov 1979., and Rogers, J.D.; Murphy, J.H.; Thullen, P.; Singh, S.K.; Haller, H.E.; Janocko, M.A.; Litz, D.C.; Eckels, P.W.
- Funding Information:
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