Dynamic Probabilistic Risk Assessment of Passive Safety Systems for LOCA Analysis Using EMRALD
This research explores Dynamic Probabilistic Risk Assessment (DPRA) using EMRALD to evaluate the reliability and safety of passive safety systems in nuclear reactors, with a focus on mitigating Loss of Coolant Accidents (LOCAs). The BWRX-300 Small Modular Reactor (SMR) is used as an example to illus...
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MDPI AG
2025-06-01
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| Series: | Journal of Nuclear Engineering |
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| Online Access: | https://www.mdpi.com/2673-4362/6/2/18 |
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| author | Saikat Basak Lixuan Lu |
| author_facet | Saikat Basak Lixuan Lu |
| author_sort | Saikat Basak |
| collection | DOAJ |
| description | This research explores Dynamic Probabilistic Risk Assessment (DPRA) using EMRALD to evaluate the reliability and safety of passive safety systems in nuclear reactors, with a focus on mitigating Loss of Coolant Accidents (LOCAs). The BWRX-300 Small Modular Reactor (SMR) is used as an example to illustrate the proposed DPRA methodology, which is broadly applicable for enhancing traditional Probabilistic Safety Assessment (PSA). Unlike static PSA, DPRA incorporates time-dependent interactions and system dynamics, allowing for a more realistic assessment of accident progression. EMRALD enables the modelling of system failures and interactions in real time using dynamic event trees and Monte Carlo simulations. This study identifies critical vulnerabilities in passive safety systems and quantifies the Core Damage Frequency (CDF) under LOCA scenarios. The findings demonstrate the advantages of DPRA over traditional PSA in capturing complex failure mechanisms and providing a more comprehensive and accurate risk assessment. The insights gained from this research contribute to improving passive safety system designs and enhancing nuclear reactor safety strategies for next-generation reactors. |
| format | Article |
| id | doaj-art-f92f9659b7744e20b6fe5859a7b9c39d |
| institution | Matheson Library |
| issn | 2673-4362 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Nuclear Engineering |
| spelling | doaj-art-f92f9659b7744e20b6fe5859a7b9c39d2025-06-25T14:01:54ZengMDPI AGJournal of Nuclear Engineering2673-43622025-06-01621810.3390/jne6020018Dynamic Probabilistic Risk Assessment of Passive Safety Systems for LOCA Analysis Using EMRALDSaikat Basak0Lixuan Lu1Department of Energy and Nuclear Engineering, Faculty of Engineering and Applied Science, Ontario Tech University, Oshawa, ON L1G 0C5, CanadaDepartment of Energy and Nuclear Engineering, Faculty of Engineering and Applied Science, Ontario Tech University, Oshawa, ON L1G 0C5, CanadaThis research explores Dynamic Probabilistic Risk Assessment (DPRA) using EMRALD to evaluate the reliability and safety of passive safety systems in nuclear reactors, with a focus on mitigating Loss of Coolant Accidents (LOCAs). The BWRX-300 Small Modular Reactor (SMR) is used as an example to illustrate the proposed DPRA methodology, which is broadly applicable for enhancing traditional Probabilistic Safety Assessment (PSA). Unlike static PSA, DPRA incorporates time-dependent interactions and system dynamics, allowing for a more realistic assessment of accident progression. EMRALD enables the modelling of system failures and interactions in real time using dynamic event trees and Monte Carlo simulations. This study identifies critical vulnerabilities in passive safety systems and quantifies the Core Damage Frequency (CDF) under LOCA scenarios. The findings demonstrate the advantages of DPRA over traditional PSA in capturing complex failure mechanisms and providing a more comprehensive and accurate risk assessment. The insights gained from this research contribute to improving passive safety system designs and enhancing nuclear reactor safety strategies for next-generation reactors.https://www.mdpi.com/2673-4362/6/2/18safety assessmentSMRDPRAEMRALDpassive safety systems |
| spellingShingle | Saikat Basak Lixuan Lu Dynamic Probabilistic Risk Assessment of Passive Safety Systems for LOCA Analysis Using EMRALD Journal of Nuclear Engineering safety assessment SMR DPRA EMRALD passive safety systems |
| title | Dynamic Probabilistic Risk Assessment of Passive Safety Systems for LOCA Analysis Using EMRALD |
| title_full | Dynamic Probabilistic Risk Assessment of Passive Safety Systems for LOCA Analysis Using EMRALD |
| title_fullStr | Dynamic Probabilistic Risk Assessment of Passive Safety Systems for LOCA Analysis Using EMRALD |
| title_full_unstemmed | Dynamic Probabilistic Risk Assessment of Passive Safety Systems for LOCA Analysis Using EMRALD |
| title_short | Dynamic Probabilistic Risk Assessment of Passive Safety Systems for LOCA Analysis Using EMRALD |
| title_sort | dynamic probabilistic risk assessment of passive safety systems for loca analysis using emrald |
| topic | safety assessment SMR DPRA EMRALD passive safety systems |
| url | https://www.mdpi.com/2673-4362/6/2/18 |
| work_keys_str_mv | AT saikatbasak dynamicprobabilisticriskassessmentofpassivesafetysystemsforlocaanalysisusingemrald AT lixuanlu dynamicprobabilisticriskassessmentofpassivesafetysystemsforlocaanalysisusingemrald |