OPTIMIZATION OF THE POLOIDAL TRANSFORMER OF IGNITOR
One of the most critical parts of the high field tokamak IGNITOR is the inner poloidal transformer coil. This is due not only to the high stresses developed there but also to the large quantities of energy released and the resulting high temperature. It determines the overall cooling time of the machine and thus the maximum attainable number of pulses per year. An optimisation, based on a parametric study of the transformer, was performed and configuration parameters were defined. Cooling time was the quantity to be minimised, with main constraints being the maximum coil temperatures and the maximum coolant outlet velocities. The cost of the cooling plant was also taken into account. The row of conductors adjacent to the equatorial plane, which presents the highest stress, was modelled and checked for maximum stress. Thermal and magnetic loading, contact nonlinearity and pretensioning were considered.
Bibliographic Reference: PAPER PRESENTED: IEEE 13TH SYMPOSIUM ON FUSION ENGINEERING, KNOXVILLE (US), OCT. 2-6, 1989 AVAILABLE FROM COMMISSION OF THE EUROPEAN COMMUNITIES, DG XIII-C-3, L-2920 LUXEMBOURG AS PAPER EN 35121 ORA
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Record Number: 1989128008400 / Last updated on: 1990-04-01
Available languages: en