Research Article
RELAP5/MOD3.3 Best Estimate Analyses for Human Reliability Analysis
Table 4
Sequence of main events for LOFW calculations.
| | Scenario | | | Time (s) | | | | Analyzed cases (AFW delay) | 30 minutes | 40 minutes | 50 minutes | 60 minutes | 70 minutes |
| | Main feedwater closure | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | | Rx trip signal generation | 52.9 | 52.9 | 52.9 | 52.9 | 52.9 | | Turbine trip | 52.9 | 52.9 | 52.9 | 52.9 | 52.9 | | Steam dump discharge | 30–617 | 30–617 | 30–617 | 30–617 | 30–617 | | SI signal generation | 616.9 | 616.9 | 616.9 | 616.9 | 616.9 | | Steam line 1 and 2 isolation | 617.0 | 617.0 | 617.0 | 617.0 | 617.0 | | RCP 1 and 2 trip | 1587.2 | 1587.2 | 1587.2 | 1587.2 | 1587.2 | | AFW 1 start (by assumption) | 1805 | 2405 | 3005 | 3605 | 4205 | | SG PORV first discharge | 1855 | 2460 | 3060 | 3660 | 4260 | | HPSI pump injection start | 2020 | 2560 | 3010 | 3630 | 4300 | | HPSI termination | 2450 | 4585 | 5594 | 6512 | 7372 |
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