New reactor cavity cooling system (RCCS) with passive safety features; A Comparative methodology between a real RCCS and a scaled-down heat-removal test facility
受動的安全性を持つ新しい炉容器冷却設備; 実機のRCCSと等倍縮小した除熱試験装置の比較方法
高松 邦吉; 松元 達也*; 守田 幸路*
Takamatsu, Kuniyoshi; Matsumoto, Tatsuya*; Morita, Koji*
After Fukushima Daiichi nuclear disaster by TEPCO, a cooling system to prevent core damage became more important from the perspective of defense in depth. Therefore, a new, highly efficient RCCS with passive safety features without a requirement for electricity and mechanical drive is proposed. Employing the air as the working fluid and the ambient air as the ultimate heat sink, the new RCCS design strongly reduces the possibility of losing the heat sink for decay heat removal. The RCCS can always stably and passively remove a part of the released heat at the rated operation and the decay heat after reactor shutdown. Specifically, emergency power generators are not necessary and the decay heat can be passively removed for a long time, even forever if the heat removal capacity of the RCCS is sufficient. We can also define the experimental conditions on radiation and natural convection for the scale-down heat removal test facility.
使用言語 : English
掲載資料名 : Annals of Nuclear Energy
: 96
ページ数 : p.137 - 147
発行年月 : 2016/10
出版社名 : Elsevier
特許データ :
論文URL :
キーワード : RCCS; Passive Safety; HTGR; HTTR; VHTR; Radiation; Natural Convection; Core Meltdown; LOCA; Grashof Number
使用施設 :
広報プレスリリース :
受委託・共同研究相手機関 : 九州大学
登録番号 : AA20160101
抄録集掲載番号 : 45000112
論文投稿番号 : 18439
Accesses  (From Jun. 2, 2014)
- Accesses
分野:Nuclear Science & Technology
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