BWRSAR calculations of reactor vessel debris pours for Peach Bottom short-term station blackout

This paper describes recent analyses performed by the BWR Severe Accident Technology (BWRSAT) Program at ORNL estimate the release of debris from the reactor vessel for the unmitigated short-term station blackout accident sequence. Calculations were performed with the BWR Severe Accident Response (BWRSAR) code and are based upon consideration of the Peach Bottom Atomic Power Station. The modeling strategies employed within BWRSAR for debris relocation within the reactor vessel are briefly discussed and the calculated events of the accident sequence, including details of the calculated debris pours, are presented. (orig.)