2016 Annual Meeting

Presentation information

Oral Presentation

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

[1F01-08] Safety evaluations for a fast reactor 1

Sat. Mar 26, 2016 10:00 AM - 12:00 PM Room F (Lecture Rooms B B201)

Chair: Hiroshi Endo (CRIEPI)

11:45 AM - 12:00 PM

[1F08] Study on In-Vessel Retention (IVR) of Unprotected Accident for Fast Reactor

(8)Assessment of Post-Disassembly Expansion and Structural Response in ULOF

Yuichi Onoda1, *Kenichi Matsuba1, Yoshiharu Tobita1 (1.Japan Atomic Energy Agency)

Keywords:Fast reactor, Severe accident, ATWS, ULOF, Post-disassembly expansion Phase, Structural response, In-vessel retention (IVR)

高速炉の炉停止失敗事象における損傷炉心の熱エネルギ状態をパラメータとした炉心膨張解析を行い、膨張炉心を圧力源とみた場合にその特性を表す圧力-体積関係(P-Vカーブ)を評価した。さらに、得られたP-Vカーブを入力として構造応答解析を行い、炉容器胴部の構造健全性が維持される結果を得た。