148件が見つかりました。

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第6回
(2)高経年化対策基盤強化のための研究開発と保全高度化:国際的展開の状況
著者:
関村 直人,Naoto SEKIMURA
発刊日:
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Systematic development of information basis for database and knowledge-base has been performed in addition to the development of codes and s tandards by academic societies, regulatory bodies and industries through the intensive domestic safety research collaborations and internatio nal collaboration, through the continuous revision of Strategy Maps for Ageing Management and Safe Long Term Operation. Important internatio nal activities in IAEA and OECD/NEA especially for knowledge-base and extraction of com...
英字タイトル:
Research and Development Strategy and Maintenance Engineering to Strengthen the basis of Ageing Management: International Activities
第6回
(3)プロアクティブ経年変化対応と階層化保全
著者:
庄子 哲雄,Tetsuo SHOJI
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Long term operation of NPP has been receiving a great concern based upon the plant operation experiences and progressive improvement in countermeasu res and mitigations. At the same time of this LTO movement, proactive materials aging management is also receiving a great concern to realize the LT O in NPP. Recent PMDM activities in Japan as well as some international one are reviewed and a necessity of an international cooperation is emphasiz ed in relation to reliable maintenance performance connected fro...
英字タイトル:
Proactive Materials Aging Management and Multi-Layered Maintenance
第6回
(4)泊発電所3号機の建設・試運転状況について
著者:
大内 全,Tamotsu OHUCHI
発刊日:
公開日:
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Tomari nuclear power station unit No.3 is currently under trial operation since March 2009. The construction started in November 2003. This reactor is a type of PWR and generates 912,000 kilowatts of electricity. The power station has the f ollowing features; 1) Adoption of integrated digital instrumentation and control system, 2) Adoption of high efficiency steam turbine, 3) Adoption of some remedial measures for steam generator. The status and these features are introduced.....
英字タイトル:
The status of construction and trial operation of Tomari nuclear power station unit No.3
第6回
2次元静磁場解析におけるGA を用いた透磁率分布逆解析手法の検討
著者:
安部 正高,Masataka ABE,松本 英治,Eiji MATSUMOTO
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In this paper, we propose new inverse analysis method for reconstruction of magnetic permeability distribution using 2D magnetostatic analysis with Genetic Algorithm. We use Finite Element Method for 2D magnetostatic analysis, where the array of material number of each element is considered as genetic code. First, we produce genetic codes, i.e., individuals, randomly. We perform the FEM analysis to obtain the distribution of magnetic flux density near the specimen surface with respect to each individual. ...
英字タイトル:
Study on Inverse Analysis Method for Reconstruction of Magnetic Permeability Distributionusing 2D Magnetostatic Analysis with GA
第6回
5本ノズル型ジェットポンプの性能回復に関する研究
著者:
熊野 秀樹,Hideki YUYA,原 哲哉,Tetsuya HARA,鈴木 純也,Junya SUZUKI,伊藤 圭介,Keisuke ITOU,鍵谷 幸生,Yukio KAGIYA,社河内 敏彦,Toshihiko SHAKOUCHI
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The degradation of 1-nozzle type Jet Pump (JP) efficiency by crud deposition has been recognized in some BWRs. In order to remove crud, we must clean each o r all of JP inner surface. The increase in cleaning surface area induces the increase in outage period and cost, therefore, in the previous study we looked for the most effective cleaning portion at inner surface for efficiency recovery. In this study, for the 5-nozzle type JP, we evaluated the effect of crud portion on decrease in efficiency of 5-noz...
英字タイトル:
Studies on Recovering Method of 5-nozzle type Jet Pump Efficiency
第6回
BWRの炉内構造物及び配管の保全技術
著者:
大坪 徹,Tooru OOTSUBO,伊東 敬,Takashi ITOU,坂下 彰浩,Akihiro SAKASHITA
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Stress corrosion cracking of welding portion has found in many domestic and foreign BWR reactor internals and Primary Loop Recirculation piping. Also, repair and preventive maintenance technologies for SCC has been developed and/or adopted to BWRs in recent years. This paper introduces the sample of these technologies, such as seal-welding fo r SCC on BWR reactor internals, preventive maintenance technology for PLR piping such as Corrosion Resistant Cladding, Internal Polishing and Induction Heating Stress...
英字タイトル:
Repair and Preventive maintenance Technology for BWR Reactor Internals and Piping
第6回
HPの機能と運用方法
著者:
伊東 敬,Takashi ITO,中村 麻友,Mayu NAKAMURA
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Electronic Journal of Advanced Maintenance (EJAM) ha s been issued on the website of Japan Society of Mai ntenology (JSM) on May 25th, 2009 This report introd uces EJAM website structure and Editorial Operation....
英字タイトル:
Introduction of Electronic Journal of Advanced Maintenance Website Structure and Editorial Operation
第6回
UT分析システムの適用によるUT評価手法の高度化
著者:
井原 亮一,Ryoichi IHARA,井 裕一,西田 純一朗,Jun-ichiro NISHIDA,Kayoko KAWATA
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In Japanese nuclear power plants, ultrasonic testing is performed as in-service inspection for piping welds according to JSME code. W e developed new UT system for piping welds to improve reliability and efficiency. Automated scanning equipments and digital acquisiti on units realized high quality and repeatability of UT data. Analysis system with various automated function and 3D model function rea lized high reliability and high speed of data analysis. In this paper, the outline and advantage of UT analy...
英字タイトル:
Advanced UT Evaluation Applying UT Analysis System