152件が見つかりました。

並び替え
第7回
著者:
黄 宇,Haoyu HUANG,高瀬 健太郎,Kentaro TAKASE,柴下 直昭,Naoaki SHIBASHITA,釘本 三男,Mitsuo KUGIMOTO,塚本 透,Toru TSUKAMOTO
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Abstract: This study proposes an electromagnetic method for the evaluation of the condition of a turbine in a nuclear power plant. Experimental results of a small turbine driven by an electric motor are shown in th is paper. A high temperature superconductivity electromagnet is applied outside the case of the turbine to provide excitation magnetic field. On the other hand, pickup coils are placed near the impeller inside the case of the turbine. The experimental results show that it is not only possible to...
英字タイトル:
Electromagnetic evaluation of the impeller of a turbine using a hightemperature superconductivity electromagnet
第7回
著者:
伊東 富由美,Fuymi ITO,乗松 孝好,Takayoshi NORIMATSU,長井 圭治,Keiji NAGAI
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The purpose of the research is to apply the micro capsule technology to the facility maintenance. The micro capsule technology for laser fusion target was developed at the institute of laser engineering O saka University. We have a plan to apply the fabrication technology of polystyrene micro capsules to t he facility maintenance where the magnetic particle testing for complex piping system is investigated....
英字タイトル:
Application of the microcapsule fabrication technology to magnetic particle testing
第7回
著者:
西村 良弘,Yoshihiro NISHIMURA,近藤 直樹,Naoki KONDO,北 英紀,Hideki KITA,鈴木 隆之,Takayuki SUZUKI
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1 緒言カラー セラミックス部材はその剛性と耐熱性において金 属材料くらべ有利である. しかし,その破壊過程は 脆性的であり金属材料のそれと比べ急峻である. 破壊が始まってからではその進行を止めたり遅らせ たりすることはできない. そのため製造直後の欠 陥検査が重要である。部材中の欠陥存在確率はその 体積に比例するので、フリーの大型部材を作成する」 ことは非常に困難である。また、大きな部材の欠陥 検査を行うことも容易ではない。この対策として欠 陥の少ないことが確認された小型部材を接着組み合 わせることで欠......
英字タイトル:
Study of non-destructive evaluation for ceramics materials
第7回
著者:
渡邉 将人,Masato WATANABE,辻 建二,Kenji TUJI,伊藤 圭介,Keisuke ITO
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The purpose of this study is to develop underwater High-Definition camera for the confirmation test of core configuration and visual examination of BWR f uels in order to reduce the time of these tests and total cost regarding to purchase and maintenance. The prototype model of the camera was developed and examined in real use condition in spent fuel pool at HAMAOKA-2 and 4. The examination showed that the ability of prototype model was either equaling or surpassing to conventional product expect for resi...
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Development of underwater High-Definition camera for the confirmation test of core configuration andvisual examination of BWR fuel
第7回
著者:
福永 辰也,Tatsuya FUKUNAGA
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The necessity of a stable driving of equipment and effective maintenance achievement rises, and the effectiveness of CBM (Condition Based Maintenance) has bee n recognized again in recent years. It is a vibration diagnosis technology of the rotating equipment that especially a lot of the results exist. We have aimed at the introduction of the vibration diagnosis technology in Japan since fast time (middle of the 1970's), and are working on the commercialization of the dia gnostic system positively. Here, i...
英字タイトル:
Condition Monitoring System by vibration method
第7回
著者:
青木 孝行,Takayuki AOKI
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If we try to check the effectiveness of maintenance activities in nuclear power plant, it is necessa ry to evaluate plant performance from the viewpoint of nuclear safety and economy. So, in this paper, after the relation among maintenance optimization, maintenance performance targets, maintenance effec tiveness indicator and maintenance key parameters important to nuclear safety and economy was made cl ear, a method to evaluate the effectiveness of maintenance activities was discussed. As a result of c on...
英字タイトル:
Study on how to evaluate the effectiveness of maintenance activitiesfor giant complex plant system
第7回
著者:
佐藤 輝和,Teruyoshi SATO,米山 充,Yoneyama MITSURU
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Recently, Introduction of the use of risk information into safety related activities in nuclear power plants is being disc ussed by electric power companies and others. Then, as an example of “Use of Risk information”, Reliability comparisons o f Motor-Generator set and Variable Voltage Variable Frequency for Primary Loop Recirculation System (PLR) are simply evalu ated from both Generation Loss and Core Damage Frequency (CDF) using Probabilistic Safety Assessment (PSA) in this study....
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System reliability comparison for operating state from both Generation Loss and Core DamageFrequency
第7回
著者:
七田 知紀,Tomonori SHICHIDA,西村 護達,Moritatsu NISHIMURA,廣 孝文,Takafumi HIRO,鈴木 晴登,Harutaka SUZUKI
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The damage caused by primary water stress corrosion crack (PWSCC) has been revealed in the Noz Safe-end with alloy 600 domestical ly and internationally in recent years. The guideline has been examined and studied to clarify the application of inspection tech niques and preventive maintenance method, the approach to the evaluation for acceptance level of continuous operation and inspect ion frequency. The summary of this guideline is introduced in this paper....
英字タイトル:
Summary of Guideline for Inspection and Evaluation of PWR Redactor Internal[Class 1 component Nozzle Safe-end dissimilar metal weld]
第7回
著者:
津田 保,Tamotsu TSUDA,楠 丈弘,Takehiro KUSUNOKI,岡田 寛,Hiroshi OKADA,山田 多士,Takeshi YAMADA
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Japan Atomic Power Company (JAPC) has completed the Ageing Management Technical Evaluation (AMTE) for Tsuruga Power Station unit 1 that has entered 40-year operation first in Japan, and has established the long-term maintenance management policy based on the evaluation. JAPC conducted the AMTE in accordance with “Ageing Management Implementation Guideline for Nuclear Power Plants“, “Code on Implementation and review of Nuclear Power Plant Ageing Management Programs 2008“ etc. During the 40-years AMTE, the ...
英字タイトル:
Overview of the technical evaluation of 40-year Plant Life ManagementTsuruga Power Station unit 1
第7回
著者:
石上 陽造,Youzou ISHIGAMI,小高 敏浩,Toshihiro KODAKA,水野 道太,Michita MIZUNO,佐野 忠之,Tadayuki SANO
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The new regulatory requirements for inspections at nuclear power station took effect in January 2009,which requi re utilities to enhance an optimization of maintenance programs. At the same time, this regulatory change made it possible for utilities to apply for an extension of the operating cycle of a plant from 13 months of previous regu latory limit up to 24 months.In this paper, approaches to extend operating cycle of Hamaoka Unit 3 are described....
英字タイトル:
Approaches to extend operating cycle of Hamaoka Unit 3