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U.S. Department of Energy
Office of Scientific and Technical Information

Reactor scram events in the updated PIUS 600 advanced reactor design

Conference ·
OSTI ID:62629
The PIUS advanced reactor is a 640-MWe pressurized water reactor concept developed by Asea Brown Boveri. A unique feature of PIUS is the absence of mechanical control and shutdown rods. Reactivity is controlled by coolant boron concentration and the temperature of the moderator coolant. Los Alamos supported the US Nuclear Regulatory Commission`s preapplication review of the PIUS reactor. Baseline calculations of the PIUS design were performed for active and passive reactor scrams using TRAC-PF1/MOD2. Additional sensitivity studies examined flow blockage and boron dilution events to explore the robustness of the PIUS concept for low-probability combination events following active-system scrams.
Research Organization:
Los Alamos National Lab., NM (United States)
Sponsoring Organization:
Nuclear Regulatory Commission, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
62629
Report Number(s):
LA-UR--94-4403; CONF-950828--2; ON: DE95005236
Country of Publication:
United States
Language:
English