TY - GEN
T1 - Development of severe accident evaluation technology (Level 2 PSA) for sodium-cooled fast reactors (1) overview of evaluation methodology development
AU - Nakai, Ryodai
AU - Suzuki, Tohru
AU - Yamano, Hidemasa
AU - Seino, Hiroshi
AU - Ishikawa, Hiroyasu
AU - Kamiyama, Kenji
AU - Koyama, Kazuya
AU - Morita, Koji
PY - 2009/1/1
Y1 - 2009/1/1
N2 - To consolidate the Probabilistic Safety Assessment (Level 2 PSA) for sodium-cooled fast reactors, the analytical methodologies in the core-material relocation phase and the ex-vessel accident sequence should be established. In addition, a technical basis for Level 2 PSA should also be built up to construct the phenomenological event trees and to determine the branch probabilities in them. In the present study, the analytical methodologies above have been developed with the aim of establishing a severe accident evaluation technology for sodium-cooled fast reactors, and the dominant factors in each phase have been identified through sensitivity analyses. The information obtained from these analyses will be effectively reflected on the technical basis which is indispensable for the construction of phenomenological event trees.
AB - To consolidate the Probabilistic Safety Assessment (Level 2 PSA) for sodium-cooled fast reactors, the analytical methodologies in the core-material relocation phase and the ex-vessel accident sequence should be established. In addition, a technical basis for Level 2 PSA should also be built up to construct the phenomenological event trees and to determine the branch probabilities in them. In the present study, the analytical methodologies above have been developed with the aim of establishing a severe accident evaluation technology for sodium-cooled fast reactors, and the dominant factors in each phase have been identified through sensitivity analyses. The information obtained from these analyses will be effectively reflected on the technical basis which is indispensable for the construction of phenomenological event trees.
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M3 - Conference contribution
AN - SCOPUS:84901720360
T3 - International Congress on Advances in Nuclear Power Plants 2009, ICAPP 2009
SP - 1110
EP - 1119
BT - International Congress on Advances in Nuclear Power Plants 2009, ICAPP 2009
PB - Atomic Energy Society of Japan
T2 - International Congress on Advances in Nuclear Power Plants 2009, ICAPP 2009
Y2 - 10 May 2009 through 14 May 2009
ER -