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第16回
配管減肉のモニタリングと予測に基づく配管システムのリスク管理　(3)固液混相流条件下における流れ加速型腐食の減肉挙動評価
著者:
渡辺 瞬,森田 良,（電中研）
発刊日:
公開日:
キーワードタグ:
In the nuclear power plant under the severe accident, it is possible that the debris dust and the metallic powder are immixed in the coolant, and then the flow pattern can become the solid-liquid multiphase flow in the reactor coolant circulation system. In this study, the numerical analysis is conducted in order to evaluate the FAC profile in the piping under the solid-liquid multiphase flow. By using the FAC model, the mass transfer coefficient in the elbow was evaluated. The mass transfer coefficient bec...
英字タイトル:
Piping System, Risk Management based on Wall Thinning Monitoring and Prediction (3) Evaluation of Wall Thinning Profile by Flow Accelerated Corrosion under Solid-Liquid Multiphase Flow
第16回
配管減肉のモニタリングと予測に基づく配管システムのリスク管理　(4)電磁超音波共鳴法による配管減肉測定のデータ処理方法
著者:
孫 宏君,浦山 良一,内一 哲哉,高木 敏行,（東北大）
発刊日:
公開日:
キーワードタグ:
The electromagnetic acoustic resonance (EMAR) method with an electromagnetic acoustic transducer (EMAT) is proposed for pipe wall thinning measurement in the previous study. In this study, the Cepstrum method is proposed to process the data obtained by an EMAR method, and it is compared with the previous autocorrelation function (ACF), superposition of nth compression (SNC), multiplication of nth compression (MNC) methods. The Cepstrum method can evaluate the thickness range of the specimen under EMAT. Also...
英字タイトル:
Piping System, Risk Management based on Wall Thinning Monitoring and Prediction Data Processing Methods of Pipe Wall Thinning Measurement by Electromagnetic Acoustic Resonance (EMAR)
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)
発刊日:
公開日:
キーワードタグ:
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
第16回
金属製フィルタを用いた火山灰除去システムの検討
著者:
川井 貴弘,水野 道太,加藤 寿宏,大山 隆令,（中部電力）,藤芳 正司,黒田 尚紀,（新日本空調）,松江 昭彦,（ユニパック）
発刊日:
公開日:
キーワードタグ:
Nuclear power plants are required not to lose safety functions against assumed natural phenomena as damage prevention from external impact. Among possible natural phenomena, it is known that blockage of the intake filter by volcanic ash occurs due to the volcanic effect. Therefore, we are investigating a volcanic ash removal system that uses a metal filter that can remove volcanic ash before the intake filter and supply clean air....
英字タイトル:
Examination of volcanic ash removal system using metal filter
第16回
関西電力（株）における原子力発電所の検査制度見直しへの試運用を踏まえた課題について
著者:
桝本 晋嗣,（関西電力）
発刊日:
公開日:
キーワードタグ:
It is reformed the regulatory inspection framework for nuclear facilities to Risk-Informed and Performance-based inspection framework. Considering the word "Performance-based", I introduce examples of status of Corrective Action Program (CAP) system program, education of Significance Determination Process (SDP), Temporary Configuration Change (TCC) in The Kansai Electric Power, so that we licensee should recognize mind change to this challenge from checklist type/prescriptive former inspection framework to ...
英字タイトル:
Challenges of Kansai Electric Power based on pilot program of regulatory inspection system reform for nuclear power plant
第16回
電動機油脂補給情報管理システムの開発
著者:
吉田 秀一郎,熊谷 将,（東北発電工業）
発刊日:
公開日:
電動機油脂補給情報管理システムの開発 Development of Information System for Management of Lubricant for Electric Motors 東北発電工業閥東北発電工業（据 吉田秀一郎 熊谷将 Shuichiro YOSHIDA MasatoKUMAGAI 1.はじめに 保守の現場における機器の日常点検作業においては、保守関連情報の記録が重要になる。従来は紙媒体への手 密きの点検記録が主流であったが、携帯デバイスの普及 に伴い、タブレット型端末の......
英字タイトル:
Development of Information System for Management of Lubricant for Electric Motors
第16回
電気系のアイソレーション支援システムの開発
著者:
高倉 啓,芝 広樹,西 優弥,高司 旭,（東芝ESS）,内藤 晋,（東芝）,藤牧 拓郎,（東芝ESS）,
発刊日:
公開日:
キーワードタグ:
An electrical isolation planning system is now under development to improve the efficiency of operating and maintaining nuclear power plant. The system automates electrical isolation planning, and evaluates the influence of the isolation plan. It also equips an algorithm that automatically adds information such as circuit connection and device attribution to the original paper-drawing. A demonstration of automatic isolation planning was conducted that used actual plant drawings. The system successfully repr...
英字タイトル:
Development of Electrical-Isolation support system
第16回
電気設備の高調波診断技術の開発と応用
著者:
新田 純也,（アルカデイア・システムズ）,吉川 榮和,（シンビオ社会研究会）
発刊日:
公開日:
キーワードタグ:
A unique diagnostic technology for electric devices has been developed to detect anomaly and estimate the cause of failure of the device easily by analyzing the higher harmonics of electric source current. Higher harmonic diagnosis devices have been realized and improved to be served as the portable device for maintenance works of various electric equipment such as AC/DC motors, inverters, transformers, cables, etc. The higher harmonic technique has been expanded as the online cabled system so that it can s...
英字タイトル:
Development and Application of Higher Harmonics Diagnosis Technology for Electric Equipment
第16回
電源開発　大間原子力建設所及び本店原子力部門におけるCAPの取り組み状況について
著者:
水野　隆史,本田　正人,岡安　良夫,久保田　和樹,佐々木　準,（電源開発）
発刊日:
公開日:
キーワードタグ:
J-Power, which is working on constructing Ohma Nuclear Power Plant, considering the various kinds of autonomous safety improvement methods. As one of this method, we implemented CAP (Corrective Action Program) at Ohma Nuclear Power Plant constructing site and Head office in 2017.Our CAP system aggregates various awareness items in work and manage the status of corrective actions. In this paper, we will introduce the implementation status and the future improvement direction (implementation of trend monitori...
英字タイトル:
Implementation status of CAP system in J-Power
第16回
電磁誘導法による肉厚測定装置の開発について　-加熱ジャケット付き容器への適用-
著者:
下川原 茂,小泉 英明,長澤 和幸,（日本原燃）,李 典燦,鈴木 智彦,清水 悟史,（日立GE）,上田 浩久,（大日機械工業）
発刊日:
公開日:
キーワードタグ:
It is necessary to conduct development to measure the thickness of the inner wall for each vessel from the outer wall, because there are double-walled vessel with a heating jacket in reprocessing plant Therefore, we have developed sensors based on electromagnetic induction test (EMIT). In this paper, we report on the development results of the device for transporting the sensors....
英字タイトル:
Development of Measuring Techniques of Thick Wall Samples by Electro-Magnetic Induction -An Application for Vessels with Heating Jacket-
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