Page 160 - Fundamentals of Magnetic Thermonuclear Reactor Design

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FIGURE 5.16 Cable pull-through force F as a function of jacketed cable length, L.

l cable straightening and insertion into the jacket with a pull-through force of
up to 30 kN, pulling speed of up to 0.2 m/min and a 2-mm gap between the
cable and jacket;
l cable compaction to the specified dimensions and winding on a transporta-
tion drum.

5.5 MODELLING OF THE ITER MAGNET SYSTEM
5.5.1 International Model Coil Program

Given the scientific and technological novelty and unprecedented scale of the
ITER superconducting MS, the high costs and potential safety issues involved
in operation, in the course of the Engineering Design Activity, a multi-aspect
international collaboration program was carried out to verify and support the
basic technical approaches to the MS design. The ultimate objective of the pro-
gram was to design, fabricate and comprehensively test the model coils using
full-size ITER CIC SCs (Figs 5.17 and 5.18).
The central solenoid model coils (CSMCs), the central solenoid conductor
insert (CSCI), the toroidal field conductor insert (TFCI), the poloidal field con-
ductor insert (PFCI) and the toroidal field model coil (TFMC) were designed,
manufactured and tested through this collaboration. Realisation of the program
consolidated results of several important R&D activities such as the develop-
ment of the ITER CICCs and joints, cryogenic current leads, mechanical sup-
porting structure, electrical insulation, diagnostics and protection systems, as
well as technology of the ITER coil fabrication. The stated parameters of the
CSMC (stored energy of 640 MJ), the inserts and TFMC (stored energy of
80 MJ) correspond to the minimum requirements adequate to simulate mechan-
ical stress and electromagnetic, thermal–hydraulic conditions expected during
the ITER MS operation.