Mechanical/Structural Performance Analysis and Test on the KAERI Designed Spacer Grids for the PWR

한국원자력연구소에서 개발한 가압경수로용 핵연료 지지격자의 기계/구조적 성능 해석 및 시험

KAERI has contrived 15 kinds of spacer grid shapes of its own since 1997 and applied for domestic and foreign patents. To date, KAERI has obtained US and ROK patents for 6 kinds of spacer grid shapes among them and the others are under review in USA, EC, China, and ROK. In this study, mechanical/structural performance analysis and test on two spacer grid shapes that are assumed to be the most effective candidates for the spacer grid of the next generation nuclear fuel in Korea was carried out. The result has shown that the performances of the candidates are better or not worse than those of the current spacer grid.