Study of hydrogen risk in a PWR-W containment during a SBO scenario; Tau parameter definition and application on venting strategy analysis

Finally, reviewing the sensitivity analysis, it is observed that hydrogen risk is highly dependent on the venting strategy used, increasing it if performed prior to the hydrogen release, or decreasing it if performed during or after the hydrogen release peak. To conclude, optimal time windows for venting are proposed in order to reduce the hydrogen risk during the transient.