A review of the structural aspects of the Large Coil Task
The Large Coil Task (LCT) was initiated a decade ago by the United States (US), EURATOM (EU), Japan (JA), and Switzerland (CH) under the auspices of the International Energy Agency (IEA) to develop superconducting magnets for toroidal field coils for tokamak fusion reactors. Under the IEA agreement, EU, JA, and CH each fabricated one coil and shipped it to the Oak Ridge National Laboratory (ORNL), where the coils were assembled, along with three US coils (GD, GE, and WH), in the International Fusion Superconducting Magnet Test Facility (IFSMTF) which was designed and built at ORNL. In addition to the fact that six widely varying designs are being tested under similar conditions in the same test facility, the LCT project is unique in at least two other aspects. First, these are the largest superconducting (SC) coils fabricated and tested to date for research and development of SC magnets. Second, as the magnets themselves are the experiment, they are each heavily instrumented; consequently, detailed information on thermal, electrical, and mechanical performance has been obtained, some for the first time on SC magnets of any size. This paper concentrates on those aspects of the tests most relevant for fusion reactor magnets: the structural measurements and simulated nuclear heating tests. Data on the US PB coils (GD and GE) and the US FF coil (WH) are used to illustrate the results. All six coils have achieved 100% design current at 8-T field and that in a symmetric torus arrangement all six coils have been simultaneously energized to 8 T.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6216281
- Report Number(s):
- CONF-870812-8; ON: DE87007371; TRN: 87-029856
- Resource Relation:
- Conference: 9. SMIRT: international conference on structural mechanics in reactor technology, Lausanne, Switzerland, 17 Aug 1987; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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LARGE COIL PROGRAM
REVIEWS
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MAGNETIC FIELDS
OPERATION
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ELECTRICAL EQUIPMENT
ELECTROMAGNETS
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MEASURING INSTRUMENTS
NUMERICAL SOLUTION
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