2021 Fall Meeting

Presentation information

Oral presentation

IV. Nuclear Plant Technologies » 402-1 Nuclear Safety Engineering (Safety Design, Safety Assessment/Analysis, Management)

[2E01-04] Next Generation Reactor Safety 1

Thu. Sep 9, 2021 9:30 AM - 10:35 AM Room E

chair: Kenji Kamiyama (JAEA)

10:15 AM - 10:30 AM

[2E04] Development of a passive safety shutdown device to prevent core damage accidents in fast reactors

(6)Specification of the device assembly design effective in the reactivity control by its material relocation

*Hiroshi Sagara1, Koji Morita2, Masatoshi Kawashima1, Tatsumi Arima2, Wei Liu2, Yuji Arita3, Isamu Sato4 (1. Tokyo Tech, 2. Kyushu Univ., 3. Univ. of Fukui, 4. TCU)

Keywords:Large scale fast reactor, Sodium cooled, Mix oxide fuel loaded core, Safety features of reactor core, Device with fuel assembly style, Fuel temperature evaluation, Temperature in solid-liquid phase

集合体型受動的炉停止デバイスを装荷したナトリウム冷却・混合酸化物燃料大型高速炉を対象にデバイス特性に重要なデバイス温度評価おいて、従来の高速炉設計で適用されている工学的安全係数を含めた不確かさを考慮するデバイス基本仕様設定に関する検討を行った。これによりATWS時にデバイスを有効に動作させる条件を明確にした。