Abstract
A 3D time-dependent cool-down simulation for the ITER magnet system has been performed. The total cold mass of the magnet system is about 10,130ton, namely 18 Toroidal Field Winding Packs and their mechanical Cases, 6 Poloidal Field coils, Central Solenoid and a set of Correction Coils. All ITER coils are made from cable-in-conduit conductor superconductors. This paper presents the simplified flow scheme of the magnet system and the simulation models. The simulated temperature evolutions of entire processes of cool-down are showed. The functions of the inlet temperature for cool-down are summarized. The simulation results indicate that it is possible to cool down the entire ITER magnet system to 6K within 750h.
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