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    Advanced Safety Assessment: Extended PSA (ASAMPSA_E)

    Project programme
    Seventh Framework Programme (FP7)
    Period
    01.07.2013 - 30.06.2016
    Project status
    Completed
    Project table
    Open in new window
    Project website
    http://asampsa.eu
    Database link
    http://cordis.europa.eu/project/rcn/109482_en.html

    Since 2013, LEI participated in the Consortium, managed by the Institut de Radioprotection et de Sûreté Nucléaire (IRSN), by implementing EU Seventh Framework Programme project Advanced Safety Assessment Methodology: Extended PSA. The project activity began on July 1, 2013; the duration of the project was 36 months. 28 organizations from 18 European countries were partners of the project; several associate members from the USA and Japan also take part in the project: US-NRC, JANSI, and TEPCO.

    The project particularly focused on probabilistic safety analysis of various extreme external hazards (meteorological, human induced and other events).

    Project description in detail

    The Fukushima nuclear accident in Japan resulted from the combination of two correlated extreme external events (earthquake and tsunami). The consequences (flooding in particular) went beyond what was considered in the initial NPP design. Such situations can be identified using PSA methodology that complements the deterministic approach for beyond design accidents. If the performance of a Level 1-Level 2 PSA concludes that such a low probability event can lead to extreme consequences, the industry (system suppliers and utilities) or the Safety Authorities may take appropriate decisions to reinforce the defence-in-depth of the plant. The project ASAMPSA_E aims at identifying good practices for the identification of such situations with the help of Level 1-Level 2 PSA and for the definition of appropriate criteria for decision making in the European context. It offers a new framework to discuss, at a technical level, how extended PSA can be developed efficiently and be used to verify if the robustness of NPPs in their environment is sufficient. It will allow exchanges on the feasibility of “extended PSAs” able to quantify risks induced by NPPs site (multi-units reactors and spent fuel pools, modelling impact of internal initiating events, internal and external hazards on equipment and human recovery actions).

    LEI activities in the project

    LEI specialists most significantly contributed in developing methodologies of external events selection and their analysis, sharing the available research experience, publications and updating/supplementing the project reports. 24 reports were prepared by the final seminar of the project in September, major part of which is public. In 2016, a great deal of attention was further devoted to the analysis of various extreme external hazards (meteorological, human induced and other events), whereas in working meetings took place a detailed discussion of various reports from separate project work packages:

    • WP10: Relationship with End-Users.
    • WP21: Initiating events (internal and external hazards) modelling.
    • WP22: How to introduce hazards in L1 PSA and all possibilities of events combination?
    • WP30: General issues regarding extended PSA scope and applications.
    • WP40: 2 Specific issues related to L2 PSA.

    Laboratory researchers, by participating in the activities of all project work packages, in 2016 mostly focused on the activities related to identification and analysis of the initial events (internal and external hazards). Besides, a lot of attention was given to the needs of End-Users while conducting analyses of safety and with it related reports/methodologies. The largest contribution of LEI is to WP21/WP22 work packages. In them, LEI coordinated preparation of the report related to meteorological hazards and their impact (emphasizing extreme winds, including tornadoes, extreme temperatures and snow covering hazards).
    Earlier in the corresponding work package the material for Link between external initiating events of PSA and NPP design basis conditions was presented.

    Participation in such international projects as ASAMPSA_E allowed immediate access to the latest ideas on risk assessment and probabilistic analysis performance and application, also allowed contributing to new theoretical and applied research in the field of safety analysis. Future plans are to actively develop bilateral cooperation with ASAMPSA_E project participants.

    Total cost: 4 043 346,65 EUR  (LEI part: 75 150,00 EUR)

    Coordinator: INSTITUT DE RADIOPROTECTION ET DE SURETE NUCLEAIRE, France

    Participants:

    • REGIA AUTONOMA PENTRU ACTIVITATI NUCLEARE DROBETA TR. SEVERIN RA SUCURSALA CERCETARI NUCLEARE PITESTI, Romania
    • GESELLSCHAFT FUER ANLAGEN- UND REAKTORSICHERHEIT (GRS) MBH, Germany
    • AMEC FOSTER WHEELER NUCLEAR UK LIMITED, United Kingdom
    • RICERCA SUL SISTEMA ENERGETICO – RSE SPA, Italy
    • LLOYD’S REGISTER CONSULTING – ENERGY AB, Sweden
    • UJV REZ, A.S., Czech Republic
    • UNIVERSITAT WIEN, Austria
    • CAZZOLI ERRICO GIUSEPPECAZZOLI CONSULTING CC, Switzerland
    • AGENZIA NAZIONALE PER LE NUOVE TECNOLOGIE,L’ENERGIA E LO SVILUPPO ECONOMICO SOSTENIBILE, Italy
    • NUCLEAR RESEARCH AND CONSULTANCY GROUP, Netherlands
    • IBERDROLA INGENIERIA Y CONSTRUCCION SA, Spain
    • ELECTRICITE DE FRANCE S.A., France
    • LIETUVOS ENERGETIKOS INSTITUTAS, Lithuania
    • NUBIKI NUCLEAR SAFETY RESEARCH INSTITUTE LTD., Hungary
    • FORSMARKS KRAFTGRUPP AB, Sweden
    • AREVA NP SAS, France
    • NARODOWE CENTRUM BADAN JADROWYCH, Poland
    • STATE ENTERPRISE STATE SCIENTIFIC AND TECHNICAL CENTER FOR NUCLEAR AND RADIATION SAFETY, Ukraine
    • VUJE AS, Slovakia
    • NIER INGEGNERIA SPA, Italy
    • VGB POWERTECH E.V., Germany
    • TRACTEBEL ENGINEERING S.A., Belgium
    • BEL V, Belgium
    • INSTITUT JOZEF STEFAN, Slovenia
    • INSTITUTE OF NUCLEAR RESEARCH AND NUCLEAR ENERGY – BULGARIAN ACADEMY OF SCIENCES, Bulgaria
    • REGIA AUTONOMA TEHNOLOGII PENTRU ENERGIA NUCLEARA – RATEN, Romania
    • TECHNICAL UNIVERSITY OF SOFIA, Bulgaria
    • AREXIS SARL, France
    Search in projects
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    Ref no. Project name Advanced Safety Assessment: Extended PSA (ASAMPSA_E)
    Name of legal entity Country Overall contract value (EUR) Proportion carried out by legal entity (%) No of staff provided Name of client Origin of funding Dates (start/end) Name of consortium members, if any
    Lithuanian Energy Institute (LEI) Lithuania 4 043 346,65  1,9 16 European Commission (FP7) European Commission (FP7) 01.07.2013 / 30.06.2016

    REGIA AUTONOMA PENTRU ACTIVITATI NUCLEARE DROBETA TR. SEVERIN RA SUCURSALA CERCETARI NUCLEARE PITESTI, Romania.
    GESELLSCHAFT FUER ANLAGEN- UND REAKTORSICHERHEIT (GRS) MBH, Germany.
    AMEC FOSTER WHEELER NUCLEAR UK LIMITED, United Kingdom.
    RICERCA SUL SISTEMA ENERGETICO - RSE SPA, Italy.
    LLOYD'S REGISTER CONSULTING - ENERGY AB, Sweden.
    UJV REZ, a.s., Czech Republic.
    UNIVERSITAT WIEN, Austria.
    CAZZOLI ERRICO GIUSEPPECAZZOLI CONSULTING CC, Switzerland.
    AGENZIA NAZIONALE PER LE NUOVE TECNOLOGIE,L'ENERGIA E LO SVILUPPO ECONOMICO SOSTENIBILE, Italy.
    NUCLEAR RESEARCH AND CONSULTANCY GROUP, Netherlands.
    IBERDROLA INGENIERIA Y CONSTRUCCION SA, Spain.
    ELECTRICITE DE FRANCE S.A., France.
    LIETUVOS ENERGETIKOS INSTITUTAS, Lithuania.
    NUBIKI Nuclear Safety Research Institute Ltd., Hungary.
    FORSMARKS KRAFTGRUPP AB, Sweden.
    AREVA NP SAS, France.
    NARODOWE CENTRUM BADAN JADROWYCH, Poland.
    STATE ENTERPRISE STATE SCIENTIFIC AND TECHNICAL CENTER FOR NUCLEAR AND RADIATION SAFETY, Ukraine.
    VUJE AS, Slovakia.
    NIER INGEGNERIA SPA, Italy.
    VGB POWERTECH E.V., Germany.
    TRACTEBEL ENGINEERING S.A., Belgium.
    BEL V, Belgium.
    INSTITUT JOZEF STEFAN, Slovenia.
    INSTITUTE OF NUCLEAR RESEARCH AND NUCLEAR ENERGY - BULGARIAN ACADEMY OF SCIENCES, Bulgaria.
    REGIA AUTONOMA TEHNOLOGII PENTRU ENERGIA NUCLEARA - RATEN, Romania.
    TECHNICAL UNIVERSITY OF SOFIA, Bulgaria.
    AREXIS SARL, France.
    Detailed description of the project Type and scope of services provided

    The Fukushima nuclear accident in Japan resulted from the combination of two correlated extreme external events (earthquake and tsunami). The consequences (flooding in particular) went beyond what was considered in the initial NPP design. Such situations can be identified using PSA methodology that complements the deterministic approach for beyond design accidents. If the performance of a Level 1-Level 2 PSA concludes that such a low probability event can lead to extreme consequences, the industry (system suppliers and utilities) or the Safety Authorities may take appropriate decisions to reinforce the defence-in-depth of the plant. The project ASAMPSA_E aims at identifying good practices for the identification of such situations with the help of Level 1-Level 2 PSA and for the definition of appropriate criteria for decision making in the European context. It offers a new framework to discuss, at a technical level, how extended PSA can be developed efficiently and be used to verify if the robustness of NPPs in their environment is sufficient. It will allow exchanges on the feasibility of “extended PSAs” able to quantify risks induced by NPPs site (multi-units reactors and spent fuel pools, modelling impact of internal initiating events, internal and external hazards on equipment and human recovery actions …).