Впровадження в Україні сучасних підходів до оцінки пошкоджуваності елементів енергоблоків АЕС від сейсмічних впливів
The probabilistic safety assessment (PSA) of all levels should consider a full range of initiating events for all reactor states, including external hazards such as earthquakes. The input data for seismic PSA development include the results of seismic fragility analysis for structures, systems and c...
Збережено в:
| Дата: | 2022 |
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| Автори: | , , , , |
| Формат: | Стаття |
| Мова: | Ukrainian |
| Опубліковано: |
State Scientific and Technical Center for Nuclear and Radiation Safety
2022
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| Онлайн доступ: | https://nuclear-journal.com/index.php/journal/article/view/952 |
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| Назва журналу: | Nuclear and Radiation Safety |
Репозитарії
Nuclear and Radiation Safety| Резюме: | The probabilistic safety assessment (PSA) of all levels should consider a full range of initiating events for all reactor states, including external hazards such as earthquakes.
The input data for seismic PSA development include the results of seismic fragility analysis for structures, systems and components (SSCs) of NPP units. The fragility of SSCs can be described by a curve that shows the conditional probability of their failure for a given seismic impact. Taking into account the Concept for Probabilistic Assessment of Core Damage Frequency from Seismic Impacts for Ukrainian NPPs, developed by Energoatom and agreed by SNRIU, an approach for the synthesis of seismic margin assessment of NPP components and subsequent probabilistic analysis is adopted in Ukraine as seismic PSA procedure.
The paper considers the peculiarities of the SSC seismic fragility analysis for Ukrainian NPPs considering the abovementioned approach. |
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