127件が見つかりました。

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第14回
断層変位に対するリスク評価と工学的な対応策 (4)機器・配管系の解析評価事例
著者:
佐藤 邦彦,Kunihiko SATO,鈴木 優,Yutaka SUZUKI,新間 聡,Satoshi SHINMA,原口 龍将,Ryusuke HARAGUCHI,神谷 昌伸,Masanobu KAMIYA,小川 勤,Tsutomu OGAWA,上屋 浩一,Koichi KAMIYA
発刊日:
公開日:
The structural integrity of equipment and piping systems to a fault displacement depends on the damage state of a reactor building. When there is no damage in a reactor building, the supporting function of equipment and piping systems is maintained. In this case, FEM analysis can estimate the allowable state of the entire system of the important safety equipment. In this part, an example of the analysis evaluation for the equipment and piping systems, which are important for safety, in the case of loading a...
英字タイトル:
Risk Evaluation Method for Faults Displacement by Engineering Approach (4)The Analysis Evaluation of Equipment and Piping System
第14回
断層変位に対するリスク評価と工学的対応策 (5)アクシデントマネジメントによるリスク低減
著者:
黒岩 克也,Katsuya KUROIWA,四十田 俊裕,Toshihiro AIDA,飯田 晋,Susumu IIDA,奈良林 直,Tadashi NARABAYASHI,蛯澤 勝三,Katsumi EBISAWA,神谷 昌伸,Masanobu KAMIYA
発刊日:
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キーワードタグ:
Studies have been carried out about fault displacements under the facilities as external hazard、 and risk evaluation method for influence on facilities by fault displacements using engineering approach、 _accident management” for domestic nuclear facilities. In this paper it shows the scenario of accident results in fault displacements directly under the nuclear power station causes loss of safety of the plant、 and shows risk evaluation method measures for the image of quantitative effect of risk reducti...
英字タイトル:
Risk Evaluation Method for Fault Displacements by Engineering Approach (5)Measures for Risk Reduction by Accident Management
第14回
新人プラント運転員に規定作業の遂行を身につけさせる トレーニングマニュアルに必要な要素の検討
著者:
山岡 晟造,Seizo YAMAOKA,五福 明夫,Akio GOFUKU,杉原 太郎,Taro SUGIHARA
発刊日:
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キーワードタグ:
In recent years, human resource development in the field of plant operation has become one of the major problems. The development of novice plant operators and core human resources is an important matter. However, it takes a large time and effort. This study aims at saving time and effort required for the human resource development by identifying requirements for novice plant operators to carry out exhaustive operation. In accordance with that, this study analyzes omissions of tasks in an operation experi...
英字タイトル:
Requirements of a training manual for acquiring basic ability with the exhaustive operation for novice plant operators : an exploratory study
第14回
新潟県中越沖地震及び東北地方太平洋沖地震による原子力発電所設備の被災状況から得た知見
著者:
長澤 和幸,KazuyuNi NAGASAWA,川口 善之,YoshiyuNi KAWAGUCHI,古谷 賢,Masaru FURUYA
発刊日:
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The Niigata-Nen Chuetsu-ONi EarthquaNe occurred in 2007 with a hypocenter very close to KashiwazaNi-Kariwa Nuclear Power Station of ToNyo Electric Power Company Holdings, Inc.. TEPCO’s subsequent plant investigation, earthquaNe response analysis using observation records and large-scale shaNing table tests have provided us valuable experiences, including the fact that safety related components were undamaged and non-safety-related components sustained only limited damage. The FuNushima Daiichi (1F) acc...
英字タイトル:
The knowledge got suffering situation of Nuclear Power Plants in 2007 Niigata-ken Chuetsu-Oki Earthquake and 2011 Great East Japan Earthquake
第14回
暫定補修工法のニーズと緩和の概念
著者:
堂﨑 浩二,Koji DOZAKI,小林 広幸,Hiroyuki KOBAYASHI
発刊日:
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キーワードタグ:
Needs for development of practical technologies such as repair and mitigation, and necessity of conceptual summarization on those technologies are proposed. Temporary repair technology is focused in particular, to discuss its development needs for simple application and effectiveness for short period. Next, aggressive movements for standardization of allowable leak rules and repair technologies including the tentative ones in the United States are pointed out to find a promising orientation of utilizing...
英字タイトル:
Needs for Temporary Repair Technology and Concept of Mitigation
第14回
東海再処理施設分析設備の保守・更新作業におけるグリーンハウスの設計・適用
著者:
鈴木 快昌,Yoshimasa SUZUKI
発刊日:
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キーワードタグ:
Greenhouse is used in order to prevent diffusion of radioactive materials on the maintenance of machineries and decomposition of the analytical equipment such as glove box in Tokai reprocessing plant (TRP). The specifications of the greenhouse change depending on a risk of the radiation exposure, operation and environment. Design and application of original greenhouses in the analytical laboratory of TRP is summarized. ...
英字タイトル:
Design and application of greenhouse on the maintenance of analytical machineries in Tokai reprocessing plant
第14回
格納容器用改良 EPDM ゴム(EP-176)の高温・水蒸気環境での 限界シール性
著者:
花島 完治,Kanji HANASHIMA
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キーワードタグ:
The sealing material of the containment vessel has been adopting improved EPDM rubber instead of silicone rubber from heat resistance, steam resistance, radiation resistance at severe accident. In order to evaluate the sealing performance of the improved EPDM rubber (EP-176), the steam seal test was conducted under a severe environment than the currently assumed severe accident. For the improved EPDM rubber (EP-176), we have found that the limit of sealing performance as O-ring is 300 ° C, 336 hours or ...
英字タイトル:
Limited sealing property of improved EPDM rubber (EP-176) for containment vessel in high temperature and steam environment
第14回
構造モデル化手法を用いた原子力利用に関する議論の全体像把握方法の検討
著者:
村吉 範彦,Norihiko Murayoshi,森下 和功,Kazunori Morishita
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Newspaper articles were analyzed to investigate the public understanding on nuclear energy utilization in Japan, which was structurized based on the graph theory and visualized with the digraph. The digraph is composed of 19 factors such as politics, economics, the environment, etc., and these are linked with each other by various causal relationships. The digraph may show what kind of issues such stakeholders face with each other as the people, the power company, and the government. Also, it may indicate t...
英字タイトル:
Structurizing public understanding on nuclear energy
第14回
機械学習手法を活用した CRDM 作動分析技術の高度化について
著者:
西村 卓也,Takuya NISHIMURA,山嵜 將平,Shohei YAMASAKI,斎藤 真由美,Mayumi SAITOH,中山 博之,Hiroyuki NAKAYAMA,矢口 誓児,Seiji YAGUCHI
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キーワードタグ:
Control Rod Drive Mechanism (CRDM) for pressurized water reactor (PWR) plant operates control rods in response to electrical signals from a reactor control system. CRDM operability is evaluated by characteristic of CRDM operational data. MHI has already developed an automatic CRDM motion analysis and applied it to actual plants so far. However, CRDM operational data has wide variation and noise depending on their characteristics such as plant condition, address, plant, and so on. In the existing motion...
英字タイトル:
Improvement of CRDM Motion Analysis using Machine Learning
第14回
泊発電所における安全対策について
著者:
笹田 直伸,Tadanobu SASADA,伊藤 健太郎,Kentaro ITO
発刊日:
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キーワードタグ:
The basic function of ensuring the safety of nuclear power plants is to shut down the nuclear reactor, cool down the fuel and confine the radioactive substance. In the accident at Fukushima Daiichi nuclear power plant that occurred in March 2011, we succeeded in shut down the nuclear reactor, but it was impossible to cool down the fuel by tsunami inundation, eventually lost the function of confine the radioactive material. Tomari nuclear power plant is promoting multiple and diverse safety measures base...
英字タイトル:
Safety measures of the Tomari nuclear power plant
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