Design and Analyses on the Spacer Grid of the PLWR Fuel

가압경수로 핵연료 지지격자의 기계/구조적 설계 및 분석

Design requirements for the nuclear fuel assembly grid of the pressurized water reactor are reviewed from the mechanical/structural point of view. And mechanical/structural tests and numerical analyses on the various spacer grid candidates that has been uniquely designed by KAERI are carried out to find out their mechanical/structural performance. As a result, the results from the numerical analyses are good agreements with test results.