Visualizing method for resilience of nuclear power plant

Kuwabara, Yuto*; Demachi, Kazuyuki*; Kasahara, Naoto*; Chen, S.*; Nishino, Hiroyuki  ; Onoda, Yuichi ; Kurisaka, Kenichi 

In order to quantitatively evaluate the ability of a nuclear plant to recover its safety functions, we are developing a method to simulate accident management in chronological order according to an accident scenario, rather than simply evaluating the probability, and to evaluate whether or not a major accident will eventually occur, i.e., whether or not the minimum necessary safety functions can be recovered within a time limit. In this presentation, we will discuss the development of a method to evaluate whether or not the minimum necessary safety functions can be recovered within the time limit. In this presentation, the specific procedure and management examples of the method will be explained.