第6回
沸騰水型原子炉の蒸気乾燥器及び主蒸気系の流力音響共鳴振動
著者:
高橋 志郎,Shiro TAKAHASHI,奥山 圭太,Keita OKUYAMA,田村 明紀,Akinori TAMURA,大塚 雅哉,Masaya OHTSUKA,吉川 和宏,Kazuhiro YOSHIKAWA,椿 正昭,Masaaki TSUBAKI,馬渕 靖宏,Yasuhiro MABUCHI
発刊日:
公開日:
キーワードタグ:
The BWR-3 steam dryer in the Quad Cities Unit 2 Nuclear Power Plant was damaged by high cycle fatigue due to acoustic-induced vibration under extended power up-rate conditions. The dryer failure was as attributed to flow-in duced acoustic resonance at the stub pipes of safety relief valves (SRVs) in the main steam lines (MSLs). The acoustic resonance was considered to be generated by interaction between the sound field and unstable shear layer s across the closed side branches with SRV stub pipes. We have ...
英字タイトル:
Flow-induced Acoustic Resonance Vibration of Main Steam Lines and Dryer in Boiling Water Reactor
第14回
配管減肉検査における非接触超音波センサの 適用性に関する基礎的検討
著者:
田村 明紀,Akinori TAMURA,河野 尚幸,Naoyuki KONO,大城戸 忍,Shinobu OKIDO,Chenghuan ZHONG,Erik FABRE,AnthonyJ. CROXFORD,D. WILCOX
発刊日:
公開日:
キーワードタグ:
A pipe-wall thinning measurement is one of key inspections to ensure the integrity of the piping system in power plants. Since the pipes of the power plants are covered with insulation, the removal of the insulation, which is time-consuming process in general, is required for the pipe-wall thinning inspection. We have been developing an innovative measurement technology, which enable the pipe-wall thinning inspection without removing the insulation, based on the non-contact ultrasonic sensor proposed by ...
英字タイトル:
Feasibility study of non-contact ultrasonic sensor for pipe-wall thinning inspection of power plants
第15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検討
著者:
田村 明紀,遠藤 正男,河野 尚幸,(日立製作所),大城戸 忍,(日立GE),Chenghuan Zhong,Maria Kogia,(Inductosense),Anthony J. Croxford,Paul D. Wilcox,(ブリストル大)
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, the sensor durability needs to be confirmed. In this stud...
英字タイトル:
Investigation into applicability of a non-contact ultrasonic sensor to pipe-wall thinning inspection of power plants
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17回
配管減肉計測向け非接触超音波センサの実機模擬配管における 適用性確認
著者:
田村 明紀,遠藤 正男,(日立製作所),沖田 俊介,大城戸 忍,(日立GE),Chenguhuan Zhong,(Inductosense Ltd),Anthony J. Croxford,Paul D. Wilcox,(Bristol大)
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. To confirm applicability of this sensor to the pipe-wall thinning inspection in actual plants, we performed the thickness measurement tests by using...
英字タイトル:
Applicability confirmation of the non-contact ultrasonic sensor by the pipe simulating actual plant conditions