Preliminary Phenomena Identification and Ranking Tables for Simplified Boiling Water Reactor Loss-of-Coolant Accident Scenarios

摘要

A set of Phenomena identification and Ranking Tables (PIRT) for three potential Loss-of-Coolant Accident (LOCA) scenarios in the General Electric Simplified Boiling Water Reactor is presented. The selected LOCA scenarios are typical for the class of small and large breaks generally considered in Safety Analysis Reports. The method used to develop the PIRTs is described. Following a discussion of the transient scenarios, the PIRTs are presented and discussed in detailed and summarized form. A procedure for future validation of the PIRTs, to enhance their value, is outlined.