Containment Depressurization Capabilities of Filtered Venting System in 1000 MWe PWR with Large Dry Containment

Table 6

Level 2 PSA internal event affected by CFVS.

RCSFAIL	MELTSTOP	ALPHA	CR-EJECT	CF-EARLY	CS-LATE	EXVCOOL	CF-LATE	Seq
No RCS failure	RV rupture	No alpha	High	No early CF	Failure	Cooled	Leak	10
No RCS failure	RV rupture	No alpha	High	No early CF	Failure	Cooled	Rupture	11
No RCS failure	RV rupture	No alpha	High	No early CF	Failure	Not cooled	Leak	14
No RCS failure	RV rupture	No alpha	High	No early CF	Failure	Not cooled	Rupture	15
No RCS failure	RV rupture	No alpha	Medium	No early CF	Failure	Cooled	Leak	32
No RCS failure	RV rupture	No alpha	Medium	No early CF	Failure	Cooled	Rupture	33
No RCS failure	RV rupture	No alpha	Medium	No early CF	Failure	Not cooled	Leak	36
No RCS failure	RV rupture	No alpha	Medium	No early CF	Failure	Not cooled	Rupture	37
No RCS failure	RV rupture	No alpha	Low	No early CF	No failure	Not cooled	Rupture	52
No RCS failure	RV rupture	No alpha	Low	No early CF	Failure	Cooled	Leak	54
No RCS failure	RV rupture	No alpha	Low	No early CF	Failure	Cooled	Rupture	55
No RCS failure	RV rupture	No alpha	Low	No early CF	Failure	Not cooled	Leak	58
No RCS failure	RV rupture	No alpha	Low	No early CF	Failure	Not cooled	Rupture	59
No RCS failure	CTMNT fail	—	—	—	—	—	—	60
Hot leg break	RV rupture	No alpha	Low	No early CF	No failure	Not cooled	Leak	76
Hot leg break	RV rupture	No alpha	Low	No early CF	No failure	Not cooled	Rupture	77
Hot leg break	RV rupture	No alpha	Low	No early CF	Failure	Cooled	Leak	79
Hot leg break	RV rupture	No alpha	Low	No early CF	Failure	Cooled	Rupture	80
Hot leg break	RV rupture	No alpha	Low	No early CF	Failure	Not cooled	Leak	83
Hot leg break	RV rupture	No alpha	Low	No early CF	Failure	Not cooled	Rupture	84
Hot leg break	CTMNT fail	—	—	—	—	—	—	94