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Title: Large coil task and results of testing US coils

Conference ·
OSTI ID:5130039

The United States, EURATOM, Japan, and Switzerland have collaborated since 1978 in development of superconducting toroidal field coils for fusion reactor applications. The United States provided a test facility nd three coils; the other participants, one coil each. All coils have the same interface dimensions and performance requirements (stable at 8 T), but internal design was decided by each team. Two US coil teams chose bath-cooled NbTi, 10-kA conductors. One developed a Nb/sub 3/Sn conductor, cooled by internal flow, rated at 18 kA. All US coils have diagnostic instrumentation and imbedded heaters that enable stability tests and simulated nuclear heating experiments. In single-coil tests, each coil operated at full current in self-field (6.4 T). In six-coil tests that began in July 1986, one US coil and the Japanese coil hve been successfully operated at full current at 8 T. The other coils have operated as background coils while awaiting their turn as test coil. Coil tests have been informative and results gratifying. The facility has capably supported coil testing and its operation has provided information that will be useful in designing future fusion systems. Coil capabilities beyond nominal design points will be determined.

Research Organization:
Oak Ridge National Lab., TN (USA). Fusion Energy Div.
DOE Contract Number:
AC05-84OR21400
OSTI ID:
5130039
Report Number(s):
CONF-860914-5; ON: DE87000880
Resource Relation:
Conference: Applied superconductivity conference (ASC '86), Baltimore, MD, USA, 28 Sep 1986; Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English