2016 Annual Meeting

Presentation information

Oral Presentation

III. Fission Energy Engineering » 306-1. Nuclear Safety Engineering, Nuclear Installation Safety, PSA

[2P04-09] Accident in LWR 2

Sun. Mar 27, 2016 10:20 AM - 12:00 PM Room P (Lecture Rooms C C200)

Chair: Kennichi Kurisaka (JAEA)

11:05 AM - 11:20 AM

[2P07] Development of the evaluation method of cesium release in level 2 probabilistic risk assessment

(2)Evaluations of the cesium release during core damage events due to a large scale LOCA by using severe accident analysis codes

*KEIGO MURATA1, Koichi Nakamura1, Atsushi Ui1, Hiroshi Endo1 (1.Central Research Institute of Electric Power Industry)

Keywords:Level 2 PRA, Severe Accident, Modular Accident Analysis Program

リスクプロファイル支配要因のひとつである大破断LOCA事象に着目し、MAAP5.03を用いた長時間解析をPWR4ループモデルプラントを対象に実施し、CsOHのLOCA時移行挙動、ペデスタルでのCs化合物の蒸発・エアロゾル挙動などのCsOH移行挙動を明らかにした。その結果を報告する。