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Oral presentation

Research and development of margin assessment methodology of decay heat removal function against external hazards, 10; Progress in JFY2014 and event sequence assessment methodology against volcanic eruption hazards

Yamano, Hidemasa; Nishino, Hiroyuki; Kurisaka, Kenichi; Okano, Yasushi; Sakai, Takaaki; Yamamoto, Takahiro*; Ishizuka, Yoshihiro*; Furukawa, Ryuta*; Geshi, Nobuo*; Nanayama, Futoshi*; et al.

no journal, ,

PRA and margin assessment methodologies are being developed for sodium-cooled fast reactors against representative external hazards. This report describes the overview of Third-year (JPY2014) updates and the development of the sequence assessment methodology against volcanic eruption hazard.

Oral presentation

Research and development of margin assessment methodology of decay heat removal function against external hazards, 15; Progress in JFY2015 and event sequence assessment methodology against a combination hazard of strong wind and rainfall

Yamano, Hidemasa; Nishino, Hiroyuki; Kurisaka, Kenichi; Okano, Yasushi; Takata, Takashi; Sakai, Takaaki; Yamamoto, Takahiro*; Ishizuka, Yoshihiro*; Furukawa, Ryuta*; Geshi, Nobuo*; et al.

no journal, ,

PRA and margin assessment methodologies have been developed for sodium-cooled fast reactors against representative external hazards. This report describes the overview of last year (JPY2015) updates and the development of the sequence assessment methodology against a combination hazard of strong wind and rainfall.

Oral presentation

Research and development of margin assessment methodology of decay heat removal function against external hazards, 19; Margin assessment methodology against a combination hazard of strong wind and rainfall

Yamano, Hidemasa; Nishino, Hiroyuki; Kurisaka, Kenichi

no journal, ,

For sodium-cooled fast reactors, a margin assessment methodology against a combination hazard of strong wind and rainfall. In the combination hazard of strong wind and rainfall, the margin was defined as the grace period to heat transfer tube in the air cooler, of which fatigue failure is considered due to ingress of rain droplets into the air cooler duct following the air cooler roof failure of auxiliary cooling system due to wind-generated missiles.