Abstract
Currently, multi-unit risks have not typically been adequately accounted for in risk assessments, since the licensing is based on unit-specific PSA with focus on a reactor accident. Within Sweden and Finland a research project called SITRON on multi-unit risk has been ongoing since 2017. This paper outlines the approach, discussed within SITRON, on multi-unit risk taking into account various dependencies between the units, combination of plant operating states and relevant risk metrics to study. The approach has been developed with aid of two pilot studies made for two Swedish sites. The dependencies between units can be caused by external hazards, which can affect multiple units at the same time, shared operational and safety systems at the site and common staff who should manage the situations. The paper also presents high level results from the two pilot studies.
Original language | English |
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Title of host publication | PSAM 14 - Probabilistic Safety Assessment and Management |
Subtitle of host publication | Papers |
Number of pages | 10 |
Publication status | Published - Sept 2018 |
MoE publication type | D3 Professional conference proceedings |
Event | 14th Probabilistic Safety Assessment and Management Conference, PSAM 14 - UCLA Luskin Conference Center, Los Angeles, United States Duration: 16 Sept 2018 → 21 Sept 2018 Conference number: 14 |
Conference
Conference | 14th Probabilistic Safety Assessment and Management Conference, PSAM 14 |
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Abbreviated title | PSAM 2018 |
Country/Territory | United States |
City | Los Angeles |
Period | 16/09/18 → 21/09/18 |
Keywords
- multi-unit
- nuclear power plant safety