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Initiating Event Analysis for Site Risk Assessment

Title
Initiating Event Analysis for Site Risk Assessment
Author
제무성
Keywords
Initiating event frequency; Site risk assessment; Site year; Reactor year; Single-unit initiator; Commoncause initiator
Issue Date
2020-11
Publisher
ESREL 2020-PSAM 15
Citation
Proceedings of the 30th European Safety and Reliability Conference and the 15th Probabilistic Safety Assessment and Management Conference, page. 4634-4638
Abstract
The purpose of the site risk assessment is to estimate the risk at the site. Not only the initiating events considered in single-unit probabilistic risk assessment, but also common cause initiator that can simultaneously affect the multiple units at the site should be considered in the site risk assessment to achieve its purpose. Previous single-unit PRA considered use blended event records with baseline period on the basis of reactor operation. To consider common cause initiator, the number of accident occurrence needs to be distinguished between single unit initiator and common cause initiator. And proper baseline periods should be defined for specified categories. Frequencies calculated with distinguished event records would consider the dependency exists in initiating events when it is applied to PRA model. In this study, the data of initiating event of Korea would be classified into single unit initiator and common cause initiator to conduct the site risk assessment. The baseline periods would be defined and the initiating event frequencies would be evaluated.
URI
http://rpsonline.com.sg/proceedings/9789811485930/html/3706.xmlhttps://repository.hanyang.ac.kr/handle/20.500.11754/172838
ISBN
978-981-14-8593-0
DOI
10.3850/978-981-14-8593-0_3706-cd
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > NUCLEAR ENGINEERING(원자력공학과) > Articles
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