The Proceedings of the International Conference on Nuclear Engineering (ICONE)
Online ISSN : 2424-2934
2007.15
Session ID : ICONE15-10125
Conference information
ICONE15-10125 PERFORMANCE ANALYSES AND TESTS ON THE KAERI DEVISED SPACER GRIDS FOR PWRS
Kee-nam SongKyung-ho YoonJae-yong KImTae-hyun ChunKang-hee Lee
Author information
CONFERENCE PROCEEDINGS FREE ACCESS

Details
Abstract
Spacer grid which is one of the most important structural components in a pressurized light water reactor fuel assembly supports the fuel rods laterally and vertically. Based on design experiences and by scrutinizing the design features of foreign advanced nuclear fuels and the foreign patents of spacer grids, KAERI has devised its own spacer grid shapes and has acquired patents. In this study, a performance evaluation of two new spacer grid shapes devised by KAERI was carried out from the mechanical/structural and thermo hydraulic view points. And also performance evaluation of two commercial spacer grid shapes was carried out for the sake of a comparison. The comparisons included the spring characteristics, fuel rod vibration characteristics, fretting wear resistance, impact strength characteristics, CHF enhancement, and the pressure drop of the spacer grid shapes. The comparison results have shown that the performances of the new spacer grid shapes are better or at least not worse than those of the commercial spacer grid shapes.
Content from these authors
© 2007 The Japan Society of Mechanical Engineers
Previous article Next article
feedback
Top