Tokamak Cooling Water System

The US is responsible for 100% of the design, engineering, and procurement of the Tokamak Cooling Water System (TCWS).

ITER’s fusion power will reach 500 MW during the deuterium-tritium inductive plasma operation. Heat will be transferred by the Tokamak Cooling Water System from client systems to the environment through the secondary cooling system. TCWS is designed to cool client systems, such as the first-wall/blanket, vacuum vessel, divertor, and neutral beam injector. Additional operations include baking of in-vessel components, chemical control of water provided to client systems, draining and drying for maintenance, and leak detection/localization.

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