21-25 July 2019
Connecticut Convention Center, Level 6
US/Eastern timezone

C3Po1F-03 [33]: Dynamic simulation of ITER cryogenic system under D-T operation

24 Jul 2019, 09:00
Level 6, Cryo Expo Exhibit Hall

Level 6, Cryo Expo Exhibit Hall


Dr Ryuji Maekawa (ITER Organization)


Co-simulation of Cryoplant and Tokamak superconducting magnet system has been performed to investigate operation performance. Cryoplant model, developed by EcosimPro®, consists of three identical refrigerators connected with integrated distribution box, called CTCB, and distribute the cooling to five Auxiliary Cold Boxes (ACB) for magnets and cryopump cooling. Meanwhile, superconducting magnet model, developed by Visual Modeler®, consists of Toroidal Field (TF) coil, Central Solenoid (CS), TF structure and Poloidal Field (PF)/Correction Coil (CC) systems. The models compute thermo-hydraulic behavior of a coolant, forced-flow supercritical helium, for the magnet with specified thermal energy deposition during Deuterium-Tritium operation as well as plasma disruption followed by the fast energy discharge of CS and PF. Global simulation of ITER cryogenic system provides the operation characteristic and stability of Cryoplant as well as magnet cooling. The paper discusses the control strategy for Cryoplant to manage substantial dynamic heat loads as well as the synchronization of two independent models

Primary author

Dr Ryuji Maekawa (ITER Organization)


Mr Shigeyuki Takami (NIFS) Dr Akifumi Iwamoto (NIFS) Dr Hyun-Sik Chang (ITER Organization) Dr David Grillot (ITER Organization)

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