Remarks on Consistent Development of Plant Nodalizations: An Example of Application to the ROSA Integral Test Facility

Table 5

Chronology of the main events in Test 6-2 [7].

Event	Exp.	TRACE
Break valve opened	0	0
Scram signal	569	453
SI signal	736	545
Primary coolant pumps stopped	819	708
Asymmetrical SG secondary-side depressurization	2548	2345
Closure of SG RV in loop with PZR	2679	2345
Initiation of accumulator system	≈5150	5450
Inflow of nitrogen gas from Acc, loop with PZR	≈10030	10995
Inflow of nitrogen gas from Acc, loop w/o PZR	≈11070	11013
Core uncovery	≈20400	22370
Initiation of LPSI	≈21940	—
Core protection activated	≈23270	23510
Second actuation of LPSI system	≈23320	—
End of transient	24034	24000