Keisuke ITOU
著者に関連した記事は2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
発刊日:
公開日:
キーワードタグ:
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
発刊日:
公開日:
キーワードタグ:
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