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4,000원
원문정보
초록
영어
In this study, by using a system analysis program(Fluid Flow), the correlation between the location where cladding damage occurs frequently inside the power plant seawater pipe and flow characteristics is analyzed, and the root cause and improvement plan are reviewed. As a result, it was confirmed that a high flow velocity occurred in the backwash piping(7.64m/s) and the front and rear ends of the flow control valve(5.93m/s). In addition, it was confirmed that cavitation occurs when the seawater level decreases below the saturated water vapor pressure at the rear end of the orifice. These areas are locations where the internal cladding damage occurs frequently in power plants, and the main cause of damage is considered to be excessive flow velocity and cavitation in the pipe. In order to solve this problem, improvement method such as installation of backwash pipe orifices, change of pipe shape at the front and rear end of flow control valve, and change of orifice type were derived.
목차
ABSTRACT 1. 서론 2. 연구방법 2.1 모델링 2.2 계통분석 2.3 캐비테이션 3. 연구결과 및 고찰 3.1 원인 분석 3.2 개선 방안 4. 결론 References
키워드
해수배관유동분석피복재캐비테이션역세척 배관
저자
오승환 [ Seung-Hwan Oh | Korea Hydro & Nuclear Power plant Central Research Institue ]
Corresponding Author
김명훈 [ Myeong-Hun Kim | Korea Hydro & Nuclear Power plant Central Research Institue ]