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The original analysis cover page is shown below. Two of the cases are benchmarked by using PCTRAN.
A cold leg 9.6 inch or 465 cm2 break is initiated with loss of AC power in The reactor and RCP trip on the break and all safety injection from the IRWST fail. The SIT works until its inventory is exhausted.
PCTRAN/APR1400 containment mimic showing vessel penetration before cavity flooding system is used for in-vessel retention.
Assumption of this case is reactor trip at run start, MSIV closure at 2 seconds and total loss of feedwater in 5 seconds. The SG safety valve at the pressurizer side stuck open after its first lift.