伊藤 圭介
著者に関連した記事は3件です。
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第7回
基礎ボルトの減肉検査技術開発
著者:
熊野 秀樹,Hideki YUYA,伊藤 圭介,Keisuke ITOU,山本 千秋,Chiaki YAMAMOTO,加古 晃弘,Akihiro KAKO,藤尾 武成,Takenari FUJIO,林 山,Shan LIN,福冨 広幸,Hiroyuki FUKUTOMI
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Anchor bolt Inspection Phased Array Thinning Ultrasonic Test
熊野 秀樹,Hideki YUYA,伊藤 圭介,Keisuke ITOU,山本 千秋,Chiaki YAMAMOTO,加古 晃弘,Akihiro KAKO,藤尾 武成,Takenari FUJIO,林 山,Shan LIN,福冨 広幸,Hiroyuki FUKUTOMI
発刊日:
公開日:
キーワードタグ:
Anchor bolt Inspection Phased Array Thinning Ultrasonic Test
Many anchor bolts have been used for fixing many components in nuclear power plant (NPP), securing safety against seismic ev ents. Some methods have been developed to detect crack-like defects in bolts which may occur after seismic events. On the ot her hand, assuming long term use of NPP, a method to detect bolt thinning was thought to be needed. In this study, by using bolt specimens with an artificially grinded portion, a new method to detect thinning and to measure its depth was developed....
英字タイトル:
Development of inspection method for thinned bolts by PA-UT
英字タイトル:
Development of inspection method for thinned bolts by PA-UT
第7回
炉内配置および燃料外観検査用ハイビジョン水中カメラの開発
著者:
渡邉 将人,Masato WATANABE,辻 建二,Kenji TUJI,伊藤 圭介,Keisuke ITO
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Digital High-Definition camera Feasibility Non-resistance to radiation VT
渡邉 将人,Masato WATANABE,辻 建二,Kenji TUJI,伊藤 圭介,Keisuke ITO
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Digital High-Definition camera Feasibility Non-resistance to radiation VT
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...
英字タイトル:
Development of underwater High-Definition camera for the confirmation test of core configuration andvisual examination of BWR fuel
英字タイトル:
Development of underwater High-Definition camera for the confirmation test of core configuration andvisual examination of BWR fuel
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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Cleaning Crud deposition Diffuser Efficiency Friction loss Jet Pump Nozzle Throat
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
発刊日:
公開日:
キーワードタグ:
Cleaning Crud deposition Diffuser Efficiency Friction loss Jet Pump Nozzle Throat
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
英字タイトル:
Studies on Recovering Method of 5-nozzle type Jet Pump Efficiency