論文
燃料デブリ取り出しに向けたジオポリマーの適用可能性に関する研究
著者:
酒井 泰地,Taichi SAKAI,鈴木 俊一,岡本 孝司
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In this study, an alternative method to retrieve fuel debris and MCCI (Molten Corium Concrete Interaction) products in Fukushima Daiichi Nuclear Power Plants is proposed, where geopolymer is used for semi-stabilization of those debris. Facing the realization of this method, the fluidity and the setting time of geopolymer are regarded as one of the problems. Thus, for investigating and evaluating those properties, slump flow experiment, funnel experiment and viscosity measurement have been done. The re...
英字タイトル:
Study on application of geopolymer to the retrieval of the fuel debris
第11回
福島事故と保全工学
著者:
岡本 孝司,Koji OKAMOTO
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The Fukushima-Daiichi NPP Accident was caused by the wrong people and organization attitude for the nuclear safety. The Comprehens ive RISK is the most important factor to keep the safety for nucar system. However, the activities were based on the compliance only. Nobody consider the risk itself. To improve the experiences on RISK, all of the people and organization should always consid er the risk. The maintenance engineering based on the comprehensive risk will support the improvement of nuclear plant ex...
英字タイトル:
Maintenance Engineering considering Fukushima-Daiichi Accident
第14回
福島第一原発廃止措置へのジオポリマーの適用可能性検討
著者:
酒井 泰地,Taichi SAKAI,鈴木 俊一,Shunichi SUZUKI,岡本 孝司,Koji OKAMOTO
発刊日:
公開日:
キーワードタグ:
In this study, an alternative method to retrieve fuel debris and MCCI (Molten Corium Concrete Interaction) products in Fukushima Daiichi Nuclear Power Plants is proposed, where geopolymer is used for semi-stabilization of those debris. Facing the realization of this method, the fluidity and the setting time of geopolymer are regarded as one of the problems. Thus, for investigating those properties, slump flow experiment, funnel experiment and viscosity measurement will be done. In addition, the experimen...
英字タイトル:
Study on application of geopolymer to decommissioning of Fukushima Dai-ichi Nuclear Power Plant
第17回
角運動量を保存する粒子法を用いた相変化を伴う高温・高粘性流体の 拡散・凝固挙動評価
著者:
横山 諒,鈴木 俊一,岡本 孝司,(東京大),近藤 雅裕,(産総研)
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For predicting the fuel debris distribution in Fukushima Daiichi Nuclear Power Plants (1FNPPs), it is essential to figure out the melt spreading behavior on primary containment vessel (PCV) floor. In this paper, we analyzed VULCANO spreading experiment programs using a particle method called “Moving Particle Full-Implicit method (MPFI)” which conserves an angular momentum. Phase change model was installed into MPFI method. two experiments having different corium characteristics were analyzed to confirm the ...
英字タイトル:
Evaluation of spreading-solidification behavior of high-temperature and highly viscous fluid by particle method with angular momentum conservation