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원전 동력구동밸브 패킹 마찰력 예측에 관한 실험적 연구
류동화(D.H. Ryu),이태경(T.K. Lee),이병학(B.H. Lee) 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.11
The purpose of this study is to evaluate the packing friction estimation methodology and application in domestic Nuclear Power Plants. The roll of packing in power-operated valve is preventing leakage through stem. Reliability of leakage prevention is highly depend on packing tightness which means higher reliability in sealing is lower reliability in valve operation. For the verification of friction estimation methodology, we studied research report from USA and Canada and purchased SmartSeal Software used in US Nuclear Power Plants for the application in domestic Nuclear Power Plants. We selected 13 motor operated valves in 2 units under outage and applied friction estimation methodology to 13 valves.