更新情報
第16回
プラント運転データによる蒸気タービンの診断システム
著者:
牛尾 裕一,金田 昌基,笠原 孝保,雨川 洋章,(日立製作所),大城戸 忍,花木 洋,(日立GE) ,河野 尚幸,(日立製作所)
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キーワードタグ:
Diagnosis system Maintenance Physical model Statistic model Steam turbine
牛尾 裕一,金田 昌基,笠原 孝保,雨川 洋章,(日立製作所),大城戸 忍,花木 洋,(日立GE) ,河野 尚幸,(日立製作所)
発刊日:
公開日:
キーワードタグ:
Diagnosis system Maintenance Physical model Statistic model Steam turbine
For the safety improvement of a nuclear power plant, safety equipments are constructing additionally under new regulatory requirements. With the increase of safety equipments, it is important to maintain and improve reliability of equipments by inspection. To improve reliability of equipments, we developed a diagnostic system for steam turbine. This system consists of statistical model and physical model. Wih the statistical model, it is possible to detect abnormality from plant operation data and estimate ...
英字タイトル:
Diagnostic system for steam turbine using plant operation data
英字タイトル:
Diagnostic system for steam turbine using plant operation data
第15回
無線やマーカに依存しないプラント内位置検出手法の開発
著者:
村田 幸弘,新間 大輔,関 洋,杉本 洋平,(日立製作所),大城戸 忍,花木 洋,岡澤 周,(日立GE)
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3-D depth acquisition Location detection Mobile device Object recognition
村田 幸弘,新間 大輔,関 洋,杉本 洋平,(日立製作所),大城戸 忍,花木 洋,岡澤 周,(日立GE)
発刊日:
公開日:
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3-D depth acquisition Location detection Mobile device Object recognition
We have developed a method using mobile devices to recognize the current location in a plant where radio/marker such as GPS is not available. Depending on the site situation the device can provide appropriate information, e.g. operating instructions, to workers. In order to recognize the current location, we identify surrounding plant equipment and register its location as the current one. The mobile device with 3-D depth acquisition can extract a plurality of pipes, collate its feature amount with the DB, ...
英字タイトル:
Development of Location Detection Method in Plant Independent of Wireless Signal and Position Marker Identification
英字タイトル:
Development of Location Detection Method in Plant Independent of Wireless Signal and Position Marker Identification
第15回
過酷事故時の溶融デブリによるコンクリートの熱的 劣化とセラミックスの熱耐性に関する実験的研究
著者:
奈良林 直,(東工大),晴山 隆仁,(北海道庁),千葉 豪,(北海道大),林 司,(中国電力),今野 隆博,(日立GE),山口 篤憲,(保全学会)
発刊日:
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キーワードタグ:
alumina Concreate Core debris High temperature Magnesia-Carbon brick Severe Accidents Thermal deterioration Void ratio zirconia
奈良林 直,(東工大),晴山 隆仁,(北海道庁),千葉 豪,(北海道大),林 司,(中国電力),今野 隆博,(日立GE),山口 篤憲,(保全学会)
発刊日:
公開日:
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alumina Concreate Core debris High temperature Magnesia-Carbon brick Severe Accidents Thermal deterioration Void ratio zirconia
In Fukushima accident on 2011, molten core supposed to be leaked on the concreate floor in containment vessel. Development of small type of core catcher which can be installed in operating nuclear power plant is needed. In this investigation, the thermal deterioration of concreate and Magnesia-Carbon brick observed trough surface observation by microscope and measurement of compressive strength, weight reduction, and difference of void ratio. In addition, permeability measurement for burned concreate was op...
英字タイトル:
Study on Thermal Deterioration of Concreate and Thermal durability of Ceramics
英字タイトル:
Study on Thermal Deterioration of Concreate and Thermal durability of Ceramics
第16回
配管減肉検査における非接触超音波センサの実機適用に向けた課題と対策
著者:
田村 明紀,古市 肇,河野 尚幸,(日立製作所),大城戸 忍,(日立GE),Chenghuan Zhong,Matt Butcher,(Inductosense Ltd),Anthony J. Croxford,Paul D. Wilcox,(University of Bristol)
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公開日:
キーワードタグ:
non-contact measurement Pipe-wall thinning ultrasonic testing wireless sensor
田村 明紀,古市 肇,河野 尚幸,(日立製作所),大城戸 忍,(日立GE),Chenghuan Zhong,Matt Butcher,(Inductosense Ltd),Anthony J. Croxford,Paul D. Wilcox,(University of Bristol)
発刊日:
公開日:
キーワードタグ:
non-contact measurement Pipe-wall thinning ultrasonic testing wireless sensor
A pipe-wall thinning measurement is required to ensure integrity of a piping system in a power plant. Aiming to reduce the inspection time of the pipe-wall thinning measurement, we have been developing an innovative measurement technology which enables the pipe-wall thinning inspection without removing the insulation, based on the non-contact ultrasonic sensor proposed by University of Bristol. To apply this technology to the actual plant inspection, sensor calibration and extension of measurable thickness ...
英字タイトル:
Development of a non-contact ultrasonic sensor for application to pipe-wall thinning inspection in power plants
英字タイトル:
Development of a non-contact ultrasonic sensor for application to pipe-wall thinning inspection in power plants