Development of a Thermal-Hydraulic Model for the EU-DEMO Tokamak Building and LOCA Simulation

The EU-DEMO must demonstrate the possibility of generating electricity through nuclear fusion reactions. Moreover, it denote necessary technologies to control a powerful plasma with adequate availability and meet safety requirements for plant licensing. However, extensive radioactive materials inventory, complexity plant, presence massive energy sources require rigorous approach fully realize power’s environmental advantages. Tokamak building barrier design address two main issues: mass transport hazards energy-related or pressure/vacuum hazards. Safety studies are performed in frame EUROfusion And Environment (SAE) work package support improvement evaluate thermal-hydraulic behavior confinement environments during accident conditions addition source term mobilization. This paper focuses on developing model building. A preliminary heat ventilation air conditioning system vent detritiation is developed. loss-of-coolant studied by investigating pressurization, mobilization, release. Different nodalizations were compared, highlighting their effects estimation. Results suggest that should be improved maintain pressure below limits; some mitigative systems preliminarily investigated this purpose.