Reactor vessel external cooling strategy

In this paper, a new analytical method is developed from original In-Vessel Melt Retention with the aim of predicting heat load from a two-layer stratified molten pool to VVER1000 lower head wall under Station Black-Out (SBO) accident accompanied with reactor vessel external cooling strategy.

16p visnape 30-01-2023 6 4   Download

In the paper, the Station Blackout accident accompanied with IVR implementation has been analyzed for VVER1000/V320 reactor by using MELCOR code 1.8.6. Four SBO scenarios have been proposed for the study, among, two SBO scenarios with long-term high pressure showed that the failure of lower head occurred early due to high pressure and high temperature causing creep-rupture, and the external cooling only delayed the failure of lower vessel.

15p vidumbledore 06-01-2023 23 2   Download

In this study, the MELCOR v1.8.6 code was utilized to perform an analysis of the in-vessel accident progression in VVER1000 reactor during the Station Black-Out (SBO) accident with and without external reactor vessel cooling (ERVC) strategy.

14p trinhthamhodang1218 14-03-2021 11 2   Download