Assessment of disruption dynamics for CFEDR H-mode operation

The assessment and analysis of the disruption consequences related to China Fusion Engineering Demo Reactor (CFEDR) 1.5 GW H-mode operation have started. This paper will give a brief overview of the disruption loads for CFEDR and will discuss the physics basis, which is continuously refined through the current disruption R&D programs. According to the empirical cross-machine scalings, several important characteristics pertaining to time scales, forces and heat fluxes can be approximated. Thermal quench simulations by JOREK show that the boundary heat deposition varies as the dominant unstable MHD mode changes. The estimation of eddy current during current quench yields a maximum force in the vacuum vessel of ~ 345 MN, and the force in the blanket is up to 250 MN.