Bitter-type toroidal field magnet for zephyr
A feasibility study concerning stress computations, design and material technology of a Bitter-type magnet for the ZEPHYR project conducted in West Germany is reported. The big overall dimensions of the magnet (6.50 m diam 2.80 m high), access for diagnostics and neutral injection (16 ports), the possibility of remote handling of activated parts and high forces form the main requirements for design and material. A design with 16 identical modules (coils) was chosen, each coil consisting of 16 Bitter plates, plate housings and one diagnostic/neutral injection wedge. The structural parts are connected by bolts and form the bending stiff structure of the magnet. The most critical area of the magnet is the inner wedge-shaped part of the coils (''throat area'') with extremely high tension, compression and shear stress values, to which temperature effects contribute heavily. Steel-copper compounds are found to be the best Bitter-plate materials. Copper-plating austenitic steel can be done galvanically or by explosive techniques. Cold-worked austenitic steels fulfil the requirements in the throat, in the flat-plate region milder steels can be used. Different plate concepts are being considered. Plasma-sprayed Al/sub 2/O/sub 3//TiO/sub 2/ and reinforced epoxy layers are provided as insulating materials in different magnet areas.
- Research Organization:
- Messerschmitt-Boelkow-Blohm, Munich, Germany, F.R.
- OSTI ID:
- 6421134
- Report Number(s):
- CONF-810340-
- Journal Information:
- IEEE Trans. Magn.; (United States), Journal Name: IEEE Trans. Magn.; (United States) Vol. MAG-17:5; ISSN IEMGA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
700202* -- Fusion Power Plant Technology-- Magnet Coils & Fields
ANNULAR SPACE
CONFIGURATION
DESIGN
ELECTRIC COILS
ELECTRICAL EQUIPMENT
EQUIPMENT
MAGNET COILS
MAGNETS
MATERIALS
MECHANICAL STRUCTURES
SPACE
STRESSES
SUPPORTS
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
TOROIDAL CONFIGURATION