원자용 안전밸브에 작동성 변수에 대한 수치적 고찰

In case that there is no large test facility for the operation test of pressure relief valve in nuclear power plant, there is no experimental method to get the operation parameter such as the change of lift and thrust, the dead time, the stroke time, and flow capacity. In this study, the analysis of operation parameter was performed with the mathematical model. The mathematical model was made by combine computational fluid dynamics and multi-body dynamic, which leads to accurate mathematical model. This analysis result can be used in the functional qualification of pressure relief valve in nuclear power plant.