論文
保守管理 のためのリスク可視化手法の開発
著者:
小嶋 正義, Masayoshi KOJIMA , 高橋 秀治, Hideharu TAKAHASHI , 内田 俊介 , Shunsuke UCHIDA , 岡田 英俊, Hidetoshi OKADA , 木倉 宏成 , Hiroshige KIKURA
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キーワードタグ:
In order to improve safety of major equipments in nuclear power plants, an advanced FMEA (Failure Mode and Effect Analysis) was developed which was integrated PFM (probabilistic fracture mechanics) into the proven FMEA by evaluating the risk priority number in maintenance management based on a trio of anomaly occurrences in equipments (O), their severity (S) and their detectability (D). The results of equipement risk evaluation were visualized by evaluating the triangle area in the radar chart of three para...
英字タイトル:
Development of Visualization Method of Risk for Maintenance Management
第16回
湿式エアロゾルフィルターのスクラビングプールにおける二相流の挙動に関する実験およびシミュレーション
著者:
チャン チ ヴィエン,高橋 秀治,奈良林 直,木倉 宏成,(東工大)
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For decommissioning of the Fukushima Daiichi Nuclear Power Plant, a high efficiency Filtered Containment Venting System should be equipped to prevent the releasing of radioactive material to environment. The wet-type aerosol filter is the first stage of the Filtered Containment Venting System, and it plays significant role to removal the aerosol particles from the venting system. The decontamination of the filter strongly depends on the two- phase flow pattern in scrubbing pool of the filter. Therefore, in ...
英字タイトル:
Experimental and Simulation Studies on the Two-phase Flow Behavior in the Scrubbing Pool of the Wet-type Aerosol Filter
第16回
超音波探傷試験員の力量向上が配管破損リスクの低減に及ぼす影響の評価
著者:
小嶋 正義,高橋 秀治,木倉 宏成,(東工大)
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Ultrasonic testing (UT) is a part of maintenance program for essential equipment of nuclear power plants in in-service inspection (ISI). Analyses of probabilistic fracture mechanics (PFM) for welds of class 1 piping have been studied to evaluate piping failure risks. Probability of detection (POD) is one of the important input conditions in the PFM analysis. The POD is closely related to a capability of UT examiners; therefore it is anticipated that the capability improvement of UT examiners is related to t...
英字タイトル:
Effect of Ultrasonic Testing Examiners’ Capability Improvements on Reduction of Piping Failure Risk