Thermal-Hydraulic Analysis Tasks for ANAV NPPs in Support of Plant Operation and Control

Table 3

Features of selected transients (F&B starting time analysis).

	Starting time of the F&B procedure (s)
	Case 1 600 s	Case 2 3000 s	Case 3 5100 s	Case 4 5700 s
Main FW turbo-pumps stop	50	50	50	50
Turbine and reactor stop	50	50	50	50
Manual action: RCP stop	350	350	350	350
2 out of 3 SG wide range level reach 6%	1782	1782	1782	1782
Manual action: PORV is opened	2382	4782	6882	7482
Manual action: HPIS is actuated	2382	4782	6882	7482
Clad maximum temperature is reached (clad maximum temperature)	48 (622 K)	4220 (628 K)	7240 (1460 K)	7610 (1652 K)
Transient end	13000	13000	13000	13000