Korea Atomic Energy Research Institute

Korea Hydro & Nuclear Power

Yoon Hwan Lee

Joon Eon Yang

Mee Jeong Hwang

Kil Yoo Kim

Woo Sik Jung

Provided is a single quantification method of an external event PSA model containing multi-compartment scenarios, including: loading an internal event PSA logic model having core damage as a top event; constituting a mapping table comprising external events containing the multi-compartment scenarios in consideration of information regarding external event occurrence frequencies, external event-induced initiators, and equipments damaged by external events; reflecting the mapping table in the internal event PSA logic model to establish an external event PSA model; calculating a final minimum cut set (MCS) based on the external event PSA model; and calculating a core damage frequency (CDF) value according to the final MCS.

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Daejeon, South Korea

Yoon Hwan Lee