更新情報
第16回
シビアアクシデント時に発生する異物による非常用炉心冷却系ストレーナ圧損評価
著者:
嶋田 優雅,川井 貴弘,松田 真一,大山 正孝,堀井 一明,,(中部電力)
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キーワードタグ:
Chemical Debris ECCS Strainer Hamaoka NPP Head Loss Evaluation NPSH
嶋田 優雅,川井 貴弘,松田 真一,大山 正孝,堀井 一明,,(中部電力)
発刊日:
公開日:
キーワードタグ:
Chemical Debris ECCS Strainer Hamaoka NPP Head Loss Evaluation NPSH
ECCS strainer for Hamaoka NPP employs cassette type. At the time of severe accident, it is necessary to take into consideration the chemical debris which has not been considered in BWR so far, in order to carry out pH control in the reactor containment vessel. In this paper, we report the results of closed vertical pipe loop test on the evaluation of the ECCS strainer head loss when considering the chemical debris in addition to the debris such as coating generated at the time of severe accident....
英字タイトル:
Evaluation of ECCS strainer head loss caused by debris generated at the time of severe accidents.
英字タイトル:
Evaluation of ECCS strainer head loss caused by debris generated at the time of severe accidents.
第14回
改良 EPDM 材料の高温環境特性の評価について
著者:
杉村 卓哉,Takuya SUGIMURA,松田 真一,Shinichi MATSUDA,鈴木 憲,Ken SUZUKI,堤 裕介,Yusuke TSUTSUMI
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キーワードタグ:
Compression set test EPDM PCV Radiation Seal Severe accident Steam
杉村 卓哉,Takuya SUGIMURA,松田 真一,Shinichi MATSUDA,鈴木 憲,Ken SUZUKI,堤 裕介,Yusuke TSUTSUMI
発刊日:
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キーワードタグ:
Compression set test EPDM PCV Radiation Seal Severe accident Steam
In Japanese BWR utilities, silicone rubber(VMQ) or fluoro rubber(FKM) has been used as a sealing material for the PCV upper flange and so on. However, these materials are not suitable for such use under the combined conditions of high-temperature steam and high-radiation dose by severe accident, so there is a possibility to reduce the sealing function that leads to a PCV flange leakage. Therefore, in the BWR plant owners recently decided to adopt an “improved EPDM“ which has excellent characteristics ...
英字タイトル:
Performance evaluation of EPDM at elevated temperature
英字タイトル:
Performance evaluation of EPDM at elevated temperature
第16回
高温・高塩化物濃度・強アルカリ環境下における構造材への影響評価
著者:
川井 貴弘,安田 光博,松田 真一,石原 康平,(中部電力),新井 拓,谷 純一,(電中研)
発刊日:
公開日:
キーワードタグ:
High chloride ion concentration Nuclear power SCC Stainless Strong alkaline
川井 貴弘,安田 光博,松田 真一,石原 康平,(中部電力),新井 拓,谷 純一,(電中研)
発刊日:
公開日:
キーワードタグ:
High chloride ion concentration Nuclear power SCC Stainless Strong alkaline
The water of Suppression pool at severe accident has become a hot, high chloride ion concentration and strong alkaline because of exhaust of the reactor heat, the melted cable, and pH controller. The equipment using the water has wetted part made stainless, therefore there is a possibility that SCC because of chloride ion occurs this wetted part. However, alkaline environment may reduce a possibility the SCC although poor knowledge. As such we examined the effect of structural material in a hot, high chlori...
英字タイトル:
Effect assessment of structural material in a hot, high chloride ion concentration, and strong alkaline environment
英字タイトル:
Effect assessment of structural material in a hot, high chloride ion concentration, and strong alkaline environment