Severe accident studies in fast accelerator-driven systems
In the preliminary safety studies mostly sodium-cooled accelerator-driven systems (ADS) are analysed with the fast reactor safety code EAC2. The spallation source is simulated by a source term in the point kinetics module. The reactor under consideration is a 800 Mwe design which had been used in fast reactor benchmark calculations. The accidents which are investigated are Loss-of-Flow accidents with and without beam shut-off and at different subcriticalities. Reactivity induced accidents with both fast and slow reactivity ramps were also investigated. A limited study of Loss-of-Heat Sink accidents is also included. These investigations show that accidents in ADSs do not lead to power bursts even if the accelerator beam is still on. However, to shut down an ADS, which is particularly needed in cooling failure events in order to avoid a slow meltdown, the accelerator beam has to be shut off.
Bibliographic Reference: Paper presented: Second International Conference on Accelerator-Driven Transmutation Technologies and Applications, Kalmar (SE), June 3-7, 1996
Availability: Available from (1) as Paper EN 40170 ORA
Record Number: 199611471 / Last updated on: 1997-01-16
Original language: en
Available languages: en