Comparison of two ICCS conductors for MHD application
Conference
·
· IEEE Trans. Magn.; (United States)
OSTI ID:6042471
Two subscale internally cooled, cabled superconductors have been examined as candidates for use in a retrofit MHD topping cycle magnet. One of these was a 3 x 3 x 3 cable in which all the strands were multifilamentary NbTi stabilized with copper. The other was a 3 x 3 x 3 cable in which two strands in each of the nine triplets was OFHC copper and one was multifilamentary NbTi. The overall copper-to-superconductor ratio for each of the two 27-strand cables was approximately the same. The two conductors were cowound onto a grooved mandrel in such a way that they could be tested alternately. Each sample was instrumented with a heater at the center of the conductor length, and with a pressure transducer, four pairs of voltage tape and one iron-doped gold/constantan thermocouple. Performance tests of the conductors were made at 6, 7 and 7.8 tesla background magnetic fields and at heater input energies ranging from 60 mJ/cm/sup 3/ to 1758 mJ/cm/sup 3/ of conductor. The results of these tests and their significance for MHD magnet design and economics are discussed.
- Research Organization:
- 9510048
- OSTI ID:
- 6042471
- Report Number(s):
- CONF-880812-
- Conference Information:
- Journal Name: IEEE Trans. Magn.; (United States) Journal Volume: 25:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
30 DIRECT ENERGY CONVERSION
300100 -- Direct Energy Conversion-- MHD Generators
420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOYS
CABLES
CONDUCTOR DEVICES
COOLING
COPPER
DESIGN
DIRECT ENERGY CONVERTERS
ECONOMICS
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELEMENTS
EQUIPMENT
MAGNETS
MEASURING INSTRUMENTS
METALS
MHD GENERATORS
NIOBIUM ALLOYS
PERFORMANCE TESTING
SUPERCONDUCTING CABLES
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS
SUPERCONDUCTORS
TESTING
THERMOCOUPLES
TITANIUM ALLOYS
TOPPING CYCLES
TRANSITION ELEMENTS
300100 -- Direct Energy Conversion-- MHD Generators
420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOYS
CABLES
CONDUCTOR DEVICES
COOLING
COPPER
DESIGN
DIRECT ENERGY CONVERTERS
ECONOMICS
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELEMENTS
EQUIPMENT
MAGNETS
MEASURING INSTRUMENTS
METALS
MHD GENERATORS
NIOBIUM ALLOYS
PERFORMANCE TESTING
SUPERCONDUCTING CABLES
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS
SUPERCONDUCTORS
TESTING
THERMOCOUPLES
TITANIUM ALLOYS
TOPPING CYCLES
TRANSITION ELEMENTS