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)

11:35 AM - 11:50 AM

[2P09] Development of the evaluation method of cesium release in level 2 probabilistic risk assessment

(4)Uncertainty analysis concerning cesium release towards identifying risk profile and safety vulnerabilities

*Atsushi Ui1, Kyoko Murakami1, Keigo Murata1, Koichi Nakamura1, Hiroshi Endo1 (1.CRIEPI)

Keywords:Level 2 PRA, Severe Accident, Source term evaluation, Uncertainty Analysis

レベル2PRA における頻度と影響の分布(余累積分布関数, CCDF)は,一般に事故シナリオの多様性と放射性物質の移行挙動の不確実さに起因して,誤差は極めて大きくなる。本研究では,水酸化セシウム(CsOH)の溶解度等に着目し,CCDF の誤差を踏まえた評価の方策を検討した結果を報告する。