Takahiro HAYASHI
著者に関連した記事は4件です。
更新情報
第13回
IRRSの指摘を受けた我が国の検査制度の大改革と新時代の統合保全検査システム
著者:
奈良林 直,Tadashi NARABAYASHI,青木 孝行,Takayuki AOKI,文能 一成,Kazushige BUNO,川村 慎一,Shinichi KAWAMURA,林 司,Tsukasa HAYASHI,今野 隆博,Takahiro KONNO,森本 俊雄,Toshio MORIMOTO
発刊日:
公開日:
キーワードタグ:
I RRS IAEA Integrated Maintenance system NRA Performance Inspection
奈良林 直,Tadashi NARABAYASHI,青木 孝行,Takayuki AOKI,文能 一成,Kazushige BUNO,川村 慎一,Shinichi KAWAMURA,林 司,Tsukasa HAYASHI,今野 隆博,Takahiro KONNO,森本 俊雄,Toshio MORIMOTO
発刊日:
公開日:
キーワードタグ:
I RRS IAEA Integrated Maintenance system NRA Performance Inspection
The 2011 off the Pacific coast of Tohoku Pacific Earthquake and the Tsunami gave the serious damage to the Fukushima-Daiichi Nuclear Power Plants (NPPs). The lessons from the accidents, IAEA’s Integrated Regulatory Review Service (IRRS) team conducted review for NRA. The mission provided recommendations and suggestions for improvements in most of the areas covered by the review. include: 1) The NRA should work to attract competent and experienced staff, and enhance staff skills relevant to nuclear and r...
英字タイトル:
Improvement of NRA’s Inspection by IRRS recommendation and Innovative Integrated New Maintenance System for NPPs
英字タイトル:
Improvement of NRA’s Inspection by IRRS recommendation and Innovative Integrated New Maintenance System for NPPs
第3回
ガイド波を用いた配管中の損傷画像化技術
著者:
林 高弘,Takahiro HAYASHI,村瀬 守正,Morimasa MURASE,長尾 将弘,Masahiro NAGAO
発刊日:
公開日:
キーワードタグ:
Defect imaging Guided waves Pipe inspection
林 高弘,Takahiro HAYASHI,村瀬 守正,Morimasa MURASE,長尾 将弘,Masahiro NAGAO
発刊日:
公開日:
キーワードタグ:
Defect imaging Guided waves Pipe inspection
Development of pipe inspection equipment with guided waves is described in this study. Authors have developed a defect imaging technique, in which reflected guided waves from such reflective objects as defects and weld lines are detected with many sensors lining up in the circumferential direction and the waveforms are processed with mode extractio n technique and wave reconstruction. Pipe inspection equipment developing in this study has a function of the defect imaging as well as modal analysis of guide...
英字タイトル:
Defect imaging technique with guided waves
英字タイトル:
Defect imaging technique with guided waves
第13回
コアキャッチャーによる原子炉格納容器底部損傷防止に関する研究
著者:
倉 佑希,Yuki KURA,奈良林 直,Tadashi NARABAYASHI,千葉 豪,Go CHIBA,林 司,Tsukasa HAYASHI,藤岡 隆,Takashi HUJIOKA,今野 隆博,Takahiro KONNO,西田 浩二,Koji NISHIDA
発刊日:
公開日:
キーワードタグ:
Core catcher FEM Fukushima Daiichi nuclear power plant Refractory brick Severe accident thermal shock
倉 佑希,Yuki KURA,奈良林 直,Tadashi NARABAYASHI,千葉 豪,Go CHIBA,林 司,Tsukasa HAYASHI,藤岡 隆,Takashi HUJIOKA,今野 隆博,Takahiro KONNO,西田 浩二,Koji NISHIDA
発刊日:
公開日:
キーワードタグ:
Core catcher FEM Fukushima Daiichi nuclear power plant Refractory brick Severe accident thermal shock
During the Fukushima Daiichi Nuclear Power Plant accident, fuels in the each core in units 1, 3 and 2 melted, and the melted core might dropped down into the lower plenum of the RPV. The core debris heated the bottom structure of reactor vessels and dropped down onto the pedestal through the melted pass of the vessel bottom structure. High temperature core debris might attack concrete or PCV bottom. In order to protect core concrete reaction, several types of core catchers were developed, but they are...
英字タイトル:
Study on Compact-Type Core Catcher for Current Nuclear Power Plants
英字タイトル:
Study on Compact-Type Core Catcher for Current Nuclear Power Plants
第14回
過酷事故時の溶融デブリによるコンクリートの熱劣化に関する研究
著者:
晴山 隆仁,Takahito HAREYAMA,奈良林 直,Tadashi NARABAYASHI,山本 泰功,Yasunori YAMAMOTO,千葉 豪,Go CHIBA,林 司,Tsukasa HAYASHI,今野 隆博,Takahiro KONNO
発刊日:
公開日:
キーワードタグ:
Concreate High temperature Magnesia-Carbon brick Thermal deterioration Void ratio
晴山 隆仁,Takahito HAREYAMA,奈良林 直,Tadashi NARABAYASHI,山本 泰功,Yasunori YAMAMOTO,千葉 豪,Go CHIBA,林 司,Tsukasa HAYASHI,今野 隆博,Takahiro KONNO
発刊日:
公開日:
キーワードタグ:
Concreate High temperature Magnesia-Carbon brick Thermal deterioration Void ratio
In the Fukushima daiichi accident, molten core supposed to be leaked from the pressure vessel to the concreate floor in the containment vessel. To keep the integrity of the containment, development of small type of core catcher which can be installed in present nuclear power plant is needed. In this investigation, the thermal deterioration of concreate and Magnesia-Carbon brick was evaluated by the surface observation and the measurements of compressive strength, weight reduction, and difference of void r...
英字タイトル:
Investigation on thermal deterioration of concreate in severe accident
英字タイトル:
Investigation on thermal deterioration of concreate in severe accident