원자력방출밸브의 작동성 검증을 위한 수학적 모델에 대한 연구

다국어 초록 (Multilingual Abstract)

As for the pressure relief valve used in the nuclear power plant, its performance has to be evaluated by KEPIC MF and its capacity test has to be executed by KEPIC MOZ. In case the experiment equipment is limited, the emission flow of the real model is estimated with the results of emission flow coming from its small-scale model. However, parameters such as the change of lift and thrust are difficult to estimate in the small-scale model, and its numerical model is needed. This study is intended to make up a numerical model so that it can analyze the emission flow and operation change in a method similar to the system of power-driven valve and check valve in the pressure relief device. One-dimensional system analysis is mainly performed until now, but this study has achieved a numerical model with a high degree of precision by using computer flow simulation and by performing precise multi-dimensional flow analysis as well as kinetics analysis.