Round robin analysis of vessel failure probabilities for PTS events in Korea

Round robin analyses for vessel failure probabilities due to PTS events are proposed for plant-specific analyses of all types of reactors developed in Korea. Four organizations, that are responsible for regulation, operation, research and design of the nuclear power plant in Korea, participated in t...

Full description

Saved in:
Bibliographic Details
Published in:Nuclear engineering and technology 2020, Vol.52 (8), p.1871-1880
Main Authors: Jhung, Myung Jo, Oh, Chang-Sik, Choi, Youngin, Kang, Sung-Sik, Kim, Maan-Won, Kim, Tae-Hyeon, Kim, Jong-Min, Kim, Min Chul, Lee, Bong Sang, Kim, Kyuwan
Format: Article
Language:Korean
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Round robin analyses for vessel failure probabilities due to PTS events are proposed for plant-specific analyses of all types of reactors developed in Korea. Four organizations, that are responsible for regulation, operation, research and design of the nuclear power plant in Korea, participated in the round robin analysis. The vessel failure probabilities from the probabilistic fracture mechanics analyses are calculated to assure the structural integrity of the reactor pressure vessel during transients that are expected to initiate PTS events. The failure probabilities due to various parameters are compared with each other. All results are obtained based on several assumptions about material properties, flaw distribution data, and transient data such as pressure, temperature, and heat transfer coefficient. The realistic input data can be used to obtain more realistic failure probabilities. The various results presented in this study will be helpful not only for benchmark calculations, result comparisons, and verification of PFM codes developed but also as a contribution to knowledge management for the future generation.
ISSN:1738-5733
2234-358X