Research Article

ROSA/LSTF Tests and RELAP5 Posttest Analyses for PWR Safety System Using Steam Generator Secondary-Side Depressurization against Effects of Release of Nitrogen Gas Dissolved in Accumulator Water

Figure 9

LSTF and RELAP5 results for primary and SG secondary pressures in loop-A in case of release of dissolved gas.
(a) Overall transient (0–4000 s)
(b) Local transient (1000–4000 s)