PSAM 16 Conference Paper Overview
Welcome to the PSAM 16 Conference paper and speaker overview page.
Lead Author: Florian Berchtold Co-author(s): Gerhard Mayer mayer.gerhard@grs.de
Marina Röwekamp marina.roewekamp@grs.de
Presenter of this paper: Marina Roewekamp (marina.roewekamp@grs.de)
Presenter of this paper: Marina Roewekamp (marina.roewekamp@grs.de)
| Consideration of Long-Lasting External Flooding Within PSA – Modelling Supplementary Emergency Measures |
|---|
| A methodological approach has been developed to adequately consider supplementary emergency measures in long-lasting hazard events within Level 1 probabilistic safety analysis (PSA). Those measures are established in the short-term using the available time during long-lasing events and have not been planned in advance. The methodology has been applied to a riverine flooding event of a reference nuclear power plant (NPP) site. In this context, two assumptions have been made: the site will not be accessible by road or rail, and there will be a consequential complete loss of offsite power. Consequently, the operation of the emergency diesel generators over a period exceeding seven days at maximum and a permanent exchange of the shift personnel are needed. Two supplementary emergency measures ensuring the supply of the plant with fuel and shift personnel have been analysed in detail. The supply is ensured via a ferry service using amphibious vehicles or with helicopter transport. These measures were implemented and quantified in an existing Level 1 PSA model of the reference NPP, taking into account the event-specific boundary conditions. The quantification revealed that ensuring the shift exchange provides a significantly higher contribution to the success of the mitigation measures than ensuring the fuel supply. This paper presents the results of the methodological enhancements and extensions as well as its application to an exemplary German NPP site. |
Paper FL328 Preview
Author and Presentation Info
A PSAM Profile is not yet available for the lead author.
Presenter Name: Marina Roewekamp (marina.roewekamp@grs.de)
Bio: - Diploma in Physics PhD (Dr. rer. nat. In Physical Chemistry / Materials Science) from University of Bonn - Senior Chief Expert for Hazards and PSA at GRS – the Federal German Nuclear Technical Safety Organization – for > 33 years - PSA work: mainly performing and/or reviewing Level 1 PSA, particularly for Internal and External Hazards (incl. hazard combinations) - Member of the German PSA Expert Panel for > 15 years - Former Chair and actual Vice Chair of OECD/NEA/CSNI Working Group on Risk Assessment (WGRISK) - Chair of OECD/NEA CSNI Expert Group on Fire Risk (EGFR) and of Management Board of OECD/NEA FIRE (Fire Events Records Exchange) Project - Consultant and/or reviewer for various IAEA Guides (SSG-64, SSG-67, SSG-68, DS523 (revision of SSG-3 on Level 1 PSA), DS528 (revision of SSG-4 on Level 2 PSA), TECDOCS on MUPSA, Advanced PSA Methods, Safety Assessment of Nuclear Installations Against Combinations of External Hazards, etc. - IAPSAM Board of Directors member since
Country: Germany
Company: Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH
Job Title: Chief Senior Expert
Presenter Name: Marina Roewekamp (marina.roewekamp@grs.de)
Bio: - Diploma in Physics PhD (Dr. rer. nat. In Physical Chemistry / Materials Science) from University of Bonn - Senior Chief Expert for Hazards and PSA at GRS – the Federal German Nuclear Technical Safety Organization – for > 33 years - PSA work: mainly performing and/or reviewing Level 1 PSA, particularly for Internal and External Hazards (incl. hazard combinations) - Member of the German PSA Expert Panel for > 15 years - Former Chair and actual Vice Chair of OECD/NEA/CSNI Working Group on Risk Assessment (WGRISK) - Chair of OECD/NEA CSNI Expert Group on Fire Risk (EGFR) and of Management Board of OECD/NEA FIRE (Fire Events Records Exchange) Project - Consultant and/or reviewer for various IAEA Guides (SSG-64, SSG-67, SSG-68, DS523 (revision of SSG-3 on Level 1 PSA), DS528 (revision of SSG-4 on Level 2 PSA), TECDOCS on MUPSA, Advanced PSA Methods, Safety Assessment of Nuclear Installations Against Combinations of External Hazards, etc. - IAPSAM Board of Directors member since
Country: Germany
Company: Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH
Job Title: Chief Senior Expert