20.08.2015   Estimating Loss-of-Coolant Accident (LOCA) Frequencies Through the Elicitation Process

Presentation #9 — BWR Piping By Rob Tregoning and Paul Scott

Similar degradation mechanisms as with PWR mechanisms: thermal fatigue, mechanical fatigue,

Sam commented with regards to Slide #4 that analysis of BWR feedwater says it should crack, but don’t find these cracks in service.

For Slide 8 it was suggested to change “risk” to “high” in last bullet.

Maximum diameter of RWCU system is 6 inch; not 24 inch as shown in VG17.