대한기계학회:학술대회논문집 (Proceedings of the KSME Conference)
- 대한기계학회 2001년도 춘계학술대회논문집B
- /
- Pages.718-723
- /
- 2001
PPM을 이용한 원자력 발전소 모터구동밸브의 안전성 평가
A Safety Evaluation of Motor-Operated Valves of Nuclear Power Plants By Using PPM
- 발행 : 2001.06.27
초록
PPM (Performance Prediction Methodology) developed by EPRI was introduced and applied to calculate the stem thrust of 3 and 4 inches flexible-wedge gate valves. The calculated stem thrusts of open and close strokes including cracking were compared with the results measured at in-situ differential pressure tests. The comparison has shown that PPM is an extremely conservative method to predict the minimum required stem thrust to operate motor-operated valves in a design basis accident condition of nuclear power plants.