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Significance of the input parameters selection and the nodalization qualification in the final results of an IBLOCA BEPU calculation

Author
Martinez, V.; Freixa, J.; Perez, M.; Reventos, F.
Type of activity
Presentation of work at congresses
Name of edition
11th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, Operation and Safety
Date of publication
2016
Presentation's date
2016-10
Book of congress proceedings
NUTHOS-11: 11th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, Operation and Safety: Gyeongju, Korea: October 9-13, 2016
First page
1
Last page
12
Repository
http://hdl.handle.net/2117/103131 Open in new window
Abstract
In the framework of Design Basis Accidents (DBA) for Pressurized Water Reactor (PWR), and based on recent studies on pipe integrity combined with the Risk-Informed Decision Making (RIDM), the USNRC proposed the Intermediate Break LOCA (IBLOCA) scenario to become a design basis accident. These studies reported that the probability of a complete rupture of a pipe depends on the pipe size, and in particular that this probability is higher for smaller tubes. Therefore, the double guillotine break of...
Citation
Martinez, V., Freixa, J., Pérez-Ferragut, M., Reventós, F. Significance of the input parameters selection and the nodalization qualification in the final results of an IBLOCA BEPU calculation. A: International Topical Meeting on Nuclear Reactor Thermal Hydraulics, Operation and Safety. "NUTHOS-11: 11th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, Operation and Safety: Gyeongju, Korea: October 9-13, 2016". Gyeongju: 2016, p. 1-12.
Keywords
BEPU, Best estimate, IBLOCA, Licensing, Qualification, System codes, Thermal-Hydraulics, Uncertainty
Group of research
ANT - Advanced Nuclear Technologies Research Group

Participants