Development of failure mitigation technologies for improving resilience of nuclear structures, 5; Resilience improvements of fast reactors by failure mitigation for beyond design high temperature accidents

Futagami, Satoshi; Ando, Masanori; Yamano, Hidemasa

Transactions of the 27th International Conference on Structural Mechanics in Reactor Technology (SMiRT 27) (Internet), 10 Pages, 2024/03

Development of failure mitigation technologies for improving resilience of nuclear structures, 11; Analysis for enhancing resilience of next-generation nuclear power plants

Futagami, Satoshi; Ando, Masanori; Yamano, Hidemasa

no journal, , 

To enhance resilience of next-generation nuclear power plants, the authors have performed a three-dimensional analysis of structures with an earthquake-resistant lower support structure, assuming a protected loss of heat sink event, which may cause all decay heat removal systems to lose their functions immediately after reactor shutdown. The results show how the reactor vessel and guard vessel deform at extremely high temperatures.