enhancing and building on half a century of nea ... · century of nea collaborative activities in...

© 2015 Organisation for Economic Co-operation and Development

Enhancing and Building on half a century of NEA Collaborative Activities in Nuclear Safety

Neil BlundellDeputy Division Head

Division of Nuclear Safety Technology and Regulatio n

TRAINING MEETING ON POST-FUKUSHIMA RESEARCH AND DEV ELOPMENT STRATEGIES AND PRIORITIES15-18 December 2015,

Vienna, Austria,

© 2015 Organisation for Economic Co-operation and Development© 2015 Organisation for Economic Co-operation and Development 2

Contents

• NEA Evolution, Mission and Strengths

• Joint Projects summary and achievements

• Main benefits from OECD/NEA Joint Nuclear Safety Research Projects

• Continued development of OECD/NEA JRSPs

• Safety Research Opportunities Post-Fukushima

• Enhancement of work on the Safety of Nuclear Installations

• Concluding Thoughts

Enhancing Collaboration in Nuclear Safety 2


The NEA’s Evolution

• Founded in 1958 as ENEA (European)• Became NEA in the 1970s when Japan, Australia, the U.S.

and Canada joined• Present membership: 31 member countries• Role has changed

– initial focus was on joint research projects– later developed to a forum for co-ordination of

policies/programmes– outreach since early 1990s



OECD/NEA Membership• Australia• Austria• Belgium• Canada• Chile• Czech Republic• Denmark• Estonia• Finland• France• Germany• Greece• Hungary• Iceland

• Ireland• Israel• Italy• Japan• Korea• Luxembourg• Mexico• Netherlands• New Zealand• Norway• Poland• Portugal• Russia• Slovak Republic

• Slovenia• Spain• Sweden• Switzerland• Turkey • United Kingdom• United States

OECD and NEA memberOECD member, not NEANEA member, not OECD



The NEA Mission

• To assist its member countries in maintaining and further developing, through international co-operation, the scientific, technological and legal bases required for a safe, environmentally friendly and economical use of nuclear energy for peaceful purposes.

• To provide authoritative assessments and to forge common understandings on key issues, as input to government decisions on nuclear energy policy , and to broader OECD policy analyses in areas such as energy and sustainable development.

5Enhancing Collaboration in Nuclear Safety 5


NEA Basic Characteristics

• Organisation of member country governments• Semi-autonomous Agency of OECD• Two parts: Main Secretariat and Data Bank with separate

memberships/budgets• Co-operates closely with the International Atomic Energy

Agency (IAEA) and the European Commission (EC)• General condition of “mutual benefit”, NEA is not an

organisation providing assistance



NEA Strengths• Small size and budget

– (80 staff members; low budget agreed with Member Countries, + voluntary contributions and projects).

• Large representation (85% of the world’s nuclear power capacity).

• Non-political forum; climate of mutual trust.• Tries to pool world’s best nuclear expertise among

developed countries.• Narrow focus: in-depth scientific, technical, legal work.• Cooperation forum for non-Member Countries identified by

Steering Committee



NEA Committees



Long -Established NEA Activities to Enhance Global Nuclear Safety

• 3 Standing Committees with safety mandates– CNRA (Committee on Nuclear Regulatory Activities)– CSNI (Committee on the Safety of Nuclear Installations)– CRPPH (Committee on Radiation protection and Public health)

• Also a Large Portfolio of Joint Research Projectsin Nuclear Safety

• Existed prior to Fukushima Daiichi Accident

• Mature responsive infrastructure between 31 countries

• Able to respond in a measured way to the crisis



CSNI/CNRA Joint Strategic Plan Main Challenges (2011 – 2016)

• Adequate Nuclear Skills and Infrastructure

• Effectiveness and Efficiency of Activities Related to Safety

• Safe Operation of Current Nuclear Facilities

• Safety in New Nuclear Facilities

• Safety in Advanced Reactor Designs

• Process for post 16 plan has begun



NEA Activities to Enhance Global Nuclear Safety : post-Fukushima

Research and Development enhancement focussed around :• Joint Projects and Development of Activities • Transition of Fukushima derived Activities being absorbed into the

standing committees, most notably CSNI

The Fukushima Daiichi Nuclear Power Plant

AccidentOECD/NEA Nuclear Safety

Response and Lessons Learnt

http://home.nea.fr/pub/2013/7161-fukushima2013.pdfUpdate available in January 2016



Joint Projects9 Active Projects4 Projects Closing3 Project starting 4 Ongoing Databases

Potentially 3 project follow-ups

30 Closed Projects

Working Group on External Events

Working Group on Electrical Systems



2012 Report on Safety Projects achievementsDecision post-Fukushima to review the Joint Nuclear Safety Research Projects existing prior to the events

Scope BenefitsInform future work

NEA NO 7073OECD 2012

• AuthorsA. ThadaniV. Teschendorff



Purpose of the “30 -years” Report• Describe the achievements of the OECD/NEA Joint

Projects on safety research (other than Halden) that were carried out during the last three decades with a specific focus on:– thermal hydraulics,– fuel behaviour, – severe accidents.

• Show that the resolution of specific safety issues in these areas has greatly profited from Joint Projects.

• Point at the benefit of working together for maintaining unique experimental infrastructure, preserving skills and generating new knowledge.



OECD/NEA Halden Reactor ProjectThe Halden Reactor Project scope and duration is too large to be properly covered in the report – Over half a century of International collaborative working• In operation since 1958 and continuing• Important international technical network in the areas of nuclear fuel

reliability, integrity of reactor internals, plant control/monitoring and human factors.

• Carried out at the Halden establishment in Norway, and is supported by more than 130 organisations in 19 countries.

• The programme of work is in general split into two areas– The Fuel and Materials programme – The man, technology and organisation programme

• a stable and well-experienced organisation, the technical infrastructure and the project objectives have undergone substantial upgrades and continual adaptation to users' needs over the years.



OECD/NEA Joint Nuclear Safety Research Projects

Motivations and Goals• Resolve issues relevant for the nuclear community by means of

research shared by many countries• Enhance technical exchange, co-operation and consensus-building

internationally• Support the continued operation of unique test facilities which are of

value to the OECD/NEA nuclear community• CSNI is committed to promote and facilitate Safety Research, through

scientific and technical cooperation between member countries• The availability of safety research results is key in assuring the high

level and long-term safety of nuclear facilities• This goal can however only be reached if dedicated and sustained

funding for safety research is maintained. The availability of experimental infrastructures is also essential



Cumulative Number of Projects to 2011



Current Joint Safety Research ProjectsCurrent Joint Safety Research Projects

� HALDEN Fuel & Materials, I&C, HOF Norway

� CABRI CWL Fuel in RIA transients in Cabri Reactor France

� SCIP-3 Fuel integrity Sweden

� SFP Fuel hydraulics/ignition phenomena USA (closed)

� LOFC Loss of Forced Coolant with HTTR Japan� PKL-3 RSC TH remaining issues Germany� THAI-2 Containment (H2, FP,…) Germany (closing)� HYMERES Containment TH (CFD) Swit/Fra

� BIP-2 Iodine chemistry Canada (closing)

� STEM Source Term Evaluation & mitigation France

� PRISME-2 Fire safety France

� HEAF High Energy Arcing Faults USA

� BSAF/2 Benchmark Study of Accident at Fukushima Japan

� ATLAS Adv Therm-Hydr Test Loop for Accident Sim Korea

� Databases:

� 1.FIRE 2.ICDE 3.CODAP 4.CADAK



Post 2011 OECD/NEA Safety Research Projects



1. OECD/NEA steam explosion resolution for nuclear application (SERENA ) Project (2007-2013)2. •OECD/NEA Rig-of-safety Assessment (ROSA-2) Project (2009-2013)3. •OECD/NEA Sandia Fuel Project (SFP) (2009-2013)4. •OECD/NEA Behaviour of Iodine Project (BIP) (2007-2011)5. •OECD/NEA Bubbler Condenser Project (1998-2002) 6. •OECD/NEA Computer-based Systems Important to Safety (COMPSIS) Project (2005-2011)7. •OECD/NEA Fire propagation in Elementary, Multi-room Scenarios (PRISME) Project (2006-2011)8. •OECD/NEA LOFT Project (1983-1989)9. •OECD/NEA Material Scaling (MASCA) Project (2000-2003)10. •OECD/NEA MASCA-2 Project (2003-2007)11. •OECD/NEA Melt Coolability and Concrete Interaction (MCCI) Project (2002-2005)12. •OECD/NEA Melt Coolability and Concrete Interaction (MCCI-2) Project (2006-2009)13. •OECD/NEA Piping Failure Data Exchange (OPDE) Project (2002-2011)14. •OECD/NEA Primary Coolant Loop Test Facility (PKL-1) Project (2004-2007)15. •OECD/NEA Primary Coolant Loop Test Facility (PKL-2) Project (2008-2011)

Closed Joint Projects (1)



16. •OECD/NEA PLASMA Project (1998-2000)

17. •OECD/NEA PSB-VVER Project (2003-2008)18. •OECD/NEA RASPLAV Project (1994-2000)19. •OECD/NEA Rig-of-safety Assessment (ROSA) Project (2005-2009)20. •OECD/NEA Sandia Lower Head Failure Project (OLHF) (1998-2002)21. •OECD/NEA Steam Explosion Resolution for Nuclear Applications (SERENA) Project (2007-2012)22. •OECD/NEA Studsvik Cladding Integrity Project (SCIP) (2004-2009)23. •OECD/NEA Studsvik Cladding Integrity Project (SCIP-2) (2009-2014)24. •OECD/NEA Stress Corrosion Cracking and Cable Ageing Project (SCAP) (2006-2010)25. •OECD/NEA SCORPIO Project (1996-1998)26. •OECD/NEA Sesar Thermal-hydraulics (SETH) Project (2001-2006)27. •OECD/NEA SESAR Thermal-hydraulics (SETH-2) Project (2007 - 2010)28. •OECD/NEA Thermal-hydraulics, Hydrogen, Aerosols and Iodine (THAI) Project (2007-2009)29. •OECD/NEA TMI Vessel Investigation Project (VIP) (1988-1993)30. •OECD/NEA-IAEA Paks Fuel Project (2004-2007)

Closed Joint Projects (2)



Statistics observed from the NEA Joint Projects

* Other than Halden Project , LOFT Project and Cabri ProjectEnhancing Collaboration in Nuclear Safety 22


Projects Hosted and joined by MC’s

Number of Project hosted by countries

Number of Project joined by countries



Scope of Report and Projects that Delivered Achieve ments

Thermal Hydraulics (including LOCA , Boron dilution and Shut-down)

• SETH, PKL, ROSA, PRISME, PSB-VVER, LOFT

Fuel safety issues (Incl. HBU, LOCA and Reactivity Initiated Accidents (RIA))

• HALDEN, SCIP, Paks NPP, SFP, CABRI

Severe accident issues (Incl. In-vessel melt, In-vessel explosion and Accident Management)

• TMI, RASPLAV, OECD-LHF, MCCI, BIP, SERENA, THAI



Scope of Report and Projects that Delivered Achieve mentsThermal Hydraulics Greatly advanced our understanding of phenomena, strengthened the data base for validation of system codes and CFD codes, and contributed to the resolution of safety issues

Fuel safety issues Addressed safety-significant issues: Power uprates, higher burn-up, new fuel element designs and new cladding materials. Thorough understanding of phenomena and failure mechanisms strengthen the technical basis for a possible revision of acceptance criteria

Severe accident issuesContributed to knowledge about severe accident phenomena, the resolution of many questions related to severe accidents and accident management measures (features and procedures) to terminate or mitigate the accident progression.



Joint projects: Working Together Sharing experimental infrastructure• Cost saving by putting resources together.• It helps the host country to maintain the facility• Data to support independent safety assessment of partners• Experimental know-how Procedure for establishing and conducting a Project• The Halden Project (1958) had a pilot function for establishing and managing

a successful international project in reactor safety. • In 2002, general guidelines for initiating, financing and managing projects

were issued, leaving a large degree of flexibility to the individual project; these guidelines have led inter alia to a standard form of Agreement.

• NEA plays an essential role in the initiation phase and keeps helping the Project throughout its lifetime by giving, advisory, technical and administrative (including financial management) support.



Joint projects: Working Together (2)

Identifying priorities• In the 1990s Senior Groups of Experts on Safety Research (SESAR) were

charged with identifying research priorities and issuing recommendations for CSNI action.

• Now project proposals reference the Technical Goals identified in the CSNI or CNRA Operating Plans I.e. Member Countries define their priorities.

Building consensus• A common data base is of high value; the common recognition that the data is

relevant for the phenomena and safety topic under consideration is an additional value and a necessary step for building consensus.

• Findings from a JRP might be reflected in a State-of-the-Art Report covering a wider area of safety topics or even form the basis of a Technical Opinion Paper or part of an international Standard Problem (ISP)



Joint projects: Working Together (3)

Recognising the benefit of Joint Research Projects• JRPs have generated safety relevant programmes that would have never

happened if the individual countries were left alone with maintaining and operating a large facility.

• In terms of resolving a safety issue “for good” - For most safety issues, experimental research is often an essential part of the solution. JRPs create cross fertilisation of ideas and drive thinking

• The time scale of JRPs including preparation, contract building, programme execution, data treatment, and reporting takes typically several years. Therefore, JRPs are mostly useful for dealing with mid-term or long term issues.

• A new generation of experts has taken over. New countries come into the nuclear arena. JRPs have a large capability for know-how transfer and for building expert capacity.



Summary Conclusion of the Projects Report- (1)

• The NEA platform provides an opportunity for countries to share the cost of generating data and information to resolve safety issues.

• The NEA platform brings together the world’s leading experts who contribute to maintaining and improving expertise and tools in member countries, to enhancing technical exchange among specialists, and to promoting consensus building on approaches to resolve safety issues.

• Thus, JRPs make a significant contribution to knowledge management.



Summary Conclusion of the Projects Report - 2

• Analytical activities dealing with data interpretation, model development and code validation run in parallel with the projects constitute an additional benefit of the Joint Research Projects.

• JRPs are responding to the challenges in all safety-relevant areas. Thorough understanding of phenomena associated with accidents strengthen the technical basis for safety decisions.

• Any new Project should carefully consider the lessons learned from recent operating experience including reported events and accidents.



Continued Development NEA Joint Nuclear Safety Projects


Current Status of Joint Safety Research ProjectsCurrent Status of Joint Safety Research Projects

� 9 Active Projects and in progress

� 4 Projects Closing

� 3 Projects starting

� Halden renewed Umbrella agreement

� 4 Ongoing Databases (all in a new phase process)

� Potentially 3 project follow-ups plus Halden & CABRI WL

= Total 24 Active Workstreams

� 30 Closed Projects



2015 Project Membership

• Now includes China , India, UAE• Open to accession by Governments of OECD/NEA

Member countries or bodies designated by such Governments, or OECD non-member countries or economies in compliance with the rules and regulations applicable to the OECD

• If a project is in existence this is qualified by the requirement that there is unanimous approval of the Project’s Management Board and subject to any conditions that it might determine.



Proposed Extensions and Potential Future ProjectsJoint Safety Project Location(s) Comments

PRISME-3 France • Discussions have begun on developing 3rd phase

• IRSN are developing a new 5 year plan with the existing

members

• Startup 2017

THAI-3 Germany • Start-up in Spring 2016

PKL - 4 Germany • Proposal circulated for expressions of interest

• Startup Summer 2016

BIP3 Canada • Start-up in Spring 2016

STEM2 France • Agreement in construction

• Start-up in Spring 2016

BSAF2 Japan • Project under way

CADAK Paris • New phase has begun

CODAP Paris • New phase about to start

ICDE Paris • New phase has begun

FIRE Paris • Phase 4 ending and Phase 5 beginning in January 2016

SAREF • Will Identify new projects in 2016 /17



STEM2?

HEAF

PRISME3?

BIP3

THAI 3rd extension

PKL - PKL2

SETH - SETH2 HYMERES

THAI THAI2

2019

ATLAS

Behaviour of I2 PJCT (BIP)

PKL3

SCIP3

PRISME PRISME2

Studsvik Cladding Integrity Project (SCIP) SCIP2

Sandia Fuel Project (SFP)

ROSA-ROSA2

HALDEN

MCCI - MCCI2

STEM

2009 2010 2011

LOFC

2015 2016 20172012 2013

BIP2

SERENA

PKL4?

Cabri International Project (CIP)

20182014

Final CD

Final CD DELIVERED

Extension?

Experimental Safety Projects TimelineExperimental Safety Projects Timeline

Joint Projects Overview 352nd November 2015


Post-Fukushima related Research Work

• BSAF (Japan)- Benchmark Study of the Accident at the Fukushima Daiichi Nuclear Power Station Project

• HYMERES (France / Switzerland) - Hydrogen Mitigation Experiments for Reactor Safety

• PKL3 (Germany/ Hungary / Finland) - PWR Transient Tests Under Postulated Accident Scenarios

• ATLAS (Korea) - Advanced Thermal-Hydraulic Test Loop for Accident Simulation

SAREF will generate further research projects related to the decommissioning of the Fukushima Daiichi Facility



Specific and Related Post-Fukushima Research Work ( 1)

BSAF: Benchmark Study of the Accident at the Fukushima Daiichi Nuclear Power Station Project

� 15 organisations from BSAF member countries in France, Germany, Japan, Korea, Russia, Spain, Switzerland, and the USA

� Final consolidated report completed in March with significant amount of modelling and investigation work done (summary report available following June 2015 CSNI - NEA/CSNI/R(2015)18)

� Plausible accident scenarios developed based on analysis results and some insights for Fukushima Daiichi decommissioning provided

� Phase 2 started end April 2015 to analyse wider scope of the accident including FP behaviours with 21 day time frame after consolidating the 6 day work

� The first BSAF2 meeting held in late June 2015

� New members have joined the project



HYMERES: Hydrogen Mitigation Experiments for Reactor Safety

Objective: improved understanding of the hydrogen risk phenomenology in containment that can enhance its modelling in support of nuclear power plant safety assessments including breakup of hydrogen stratification and testing of safety components like PARs

� Two Operating agents

� Experiments near completion in Switzerland - PANDA

� Experiments near to schedule in France – MISTRA

� 4 million Euro project with end date December 2016

� Possible continuation being discussed

� Partners include non-NEA-members - China and India

� Several analytical workshops alongside the project meetings




�PKL Phase 3 : PWR Transient Tests Under Postulated Accident Scenarios - Objective: “To address thermal-hydraulic safety issues for current PWR and new PWR design concepts” via 8 Integral experiments in the PKL test facility complemented by test in ROCOM, PMK and PWR PACTEL facilities

� All tests completed and now progressing to analysis of results and report

� the final report is targeted for completion in July 2016

� Partners and Operating Agent have completed discussions on a follow on project

based on known gaps of knowledge with start within mid-2016 (Remaining

experimental work has strengthened the need for the selected topics)

� Many partners take part in ATLAS project enabling consideration of cross

fertilisation of ideas as well as recognition of the need to schedule partners

activities

� Benchmark workshop with two benchmarks in collaboration with ATLAS in Pisa, 13-

16th April 2016




� ATLAS : Advanced Thermal-Hydraulic Test Loop for Accident Simulation - Thermal-hydraulic integral effect test facility for ALWRs -1/2-height, 1/144-area facility for APR1400 studying design and beyond design basis accidents

� 15 members including UAE, India and China , 22 signatories following inclusion of two new partners

� Experimental programme is being delivered successfully and to schedule (5 successful tests performed from the 8 test programme)

� A benchmark test has been selected and outcomes of analytical work will be discussed in conjunction with PKL3 project in April 2016

� Partners are carrying out significant analytical work alongside the experimental tests - key to demonstrating practical application of test data

� First thoughts of a follow on project have been expressed




SAREF :

Senior Expert Group on Safety Research

Opportunities Post-Fukushima

Masashi Hirano - Chair


Background of SAREF

� Draft mandate developed in 1st meeting in Nov. 2013.

� Proposed mandate approved in CSNI Dec. meeting.

Objectives: � To propose to the CSNI a process to identify and follow up on

opportunities for addressing safety research gaps and

advancing safety knowledge, based on information from

Fukushima.

� This objective will also support Japan in achieving safe and

prompt decommissioning

Deliverable: A report (within 2 to 2.5 years) that:

� Identifies safety areas of common interest

� Recommends to CSNI safety research activities including

their relative priorityEnhancing Collaboration in Nuclear Safety 42


Participants:� 22 experts from 11 countries: Canada (1), France (3), Germany (1), Italy (1),

Japan (9), Korea (1), Russia (1), Spain (1), Sweden (1), Switzerland (1) and US (2)

� NEA is the secretariat

Major Topics:

� Inputs from Japan and related activities:

� Fukushima information update by TEPCO

� Related activities in Japan (IRID/JAEA, NDF)

� SAREF Report will contain

� Safety areas of common interest

� Safety research activities (Long-term/ Near-term)

� Way forward

• NDF: Nuclear Damage Compensation and Decommissioning Facilitation Corporation• IRID: International Research Institute for Nuclear Decommissioning

Joint Projects Overview 43


Report will include:

1. Research Areas of Common InterestFor each research area, 1) Background, 2) Safety interest, 3)

Decommissioning interest, 4) Potential examination, and 5)

Ongoing R&D activities are described

2. Long-term Project ConsiderationsProposed in the following areas; 1) In-vessel Phenomena, 2) Ex-

vessel Phenomena, 3) System Survivability, 4) FP database

Compilation and Measurement

3. Near-term Project Proposals1) Preparatory study on fuel debris analysis

2) Examination inside RBs, CVs and water sampling

5. Conclusions and Recommendations



Severe Accident Progression Examples include In-Vessel Phenomena (H-H)

Containment Failure and Venting (H-H)Hydrogen Distribution and Combustion (M-L)

SSC Performance and conditionExamples include Salt Water and Concrete Debris Effect (Primary system and SFP) (L-M)Cable and Sealing (H-H) Instrumentation (H-L)

Recovery PhaseExamples include Debris and Waste Management (L-H)

General/Areas Already AddressedHuman Performance (H-L)Seismic Response (L-H)

Research Areas of Common Interest

Prioritised as ”H”: High, “M”: Medium, “L”: Low

• Left : Safety Interest, Right: Decommissioning Interest

• Prioritisation takes into account what kind of information could be made available from Fukushima in each area.



Long-term projects are conceptual at the moment and should be recognized as an international “Wish list” for information to be provided mainly by decommissioning:

� Accessibility to inside RBs/CVs is still quite limited due to high doses, and therefore their feasibilities are not known yet due to lack of information.

For Instance for In-vessel Phenomena• Focus: Debris distribution within vessel, interactions among molten fuel,

control blades, and structures, etc., stratification, vessel failure

• Potential activities: Phased approach

� Phase I: International workshops

� Phase II: Progressive update of the examination program

� Phase III: Sample taking and hot lab. analysis of fuel debris, vessel

material, etc., if feasible

Long-Term Project Considerations (1/2)



Near-term projects are those which can start in the near term as a

preparatory phase:

� Collect/analyze basic information and update “long-term” projects,

� Maintain information channel between CSNI and Japanese relevant

organizations, and

� Check/test the feasibility of transportation, analyses, etc. of the samples to

be taken

For instance Study on fuel debris with simulated debris and

analyses• Fuel debris characterization (analytical, experimental)

� International workshop on core degradation and MCCI

• Evaluation of radiation doses during fuel debris retrieval operations.

• Discussion on future long-term projects (fuel debris sampling)

Near-Term Project Proposals



Way Forward:• Current SAREF be dismissed when its final report is approved by CSNI.

• Start near-term projects in parallel with BSAF-II to maintain “information

channel” between CSNI and Japanese relevant organizations.

• Start the second phase, SAREF-II, in 3 to 5 years, after new information

comes for discussing the long-term projects and other options, taking into

account realistic feasibilities in terms of costs and man power required,

dose estimates and so forth.

Current

SAREFSAREF-IINear-term project 2

Near-term project 1

Long-term project 2

Long-term project 1

Preparatory phase: 3 to 5 years

Update of SAREF report

New information

Time

BSAF-II

Image of SAREF-II



Enhancement of work on the Safety of Nuclear Installations

• Working Group on External Events (WGEV)

• Working Group on Electrical Power Systems (WGELEC)



WGEV

• Established December 2014 Tasks• Severe Weather Events with High Winds and Flooding

• Gathering current practice in high winds and flooding hazard assessment

• Science-Based Screening Approach for External Hazards• the current state of the art / practice and identifying best practices

and gaps found in application of existing screening approaches for external hazards currently employed for NPP risk assessment

• Riverine Flooding - Hazard Assessment and Protection of NPPs• Identify key issues regarding riverine flood hazard assessment

(both deterministic and probabilistic) and flood protection



WGELEC• Established December 2015• Developed from earlier task group activities DIDELSYS and

ROBELSYS • Mission: to advance the current understanding and address safety

issues related to electrical systems of nuclear installations. • Goal 1 – Enhancement of the robustness of electrical systems

• Goal 2 – Development and improvement in the analysis and simulation of the behaviour of NPP’s Electrical systems

• Goal 3 – Addressing safety challenges related to the use of power and software-based electronics in electrical power systems.



Concluding Thoughts on Research Collaboration

The existing OECD/NEA framework for Joint Nuclear Safety Research projects shows that there is strength and effectiveness in:• International collaborative projects between Countries• International collaborative projects between Operating

Agents• Counterpart testing • Sharing of Challenges and Successes as well as the

burden of Cost• Growing and transferring knowledge and know how



Concluding Thoughts on Future Enhancement

• Existing projects are developing and pursuing a number of research topics in the post-Fukushima environment

• The SAREF task group has identified further areas of common interest in the area of nuclear safety and will propose prioritised safety research activities that will expand the portfolio of Joint Nuclear safety project further in the near and long term

• Significant further work was identified such that it was essential to develop working groups to share and develop international good practice and guidance in the areas of external events and electrical systems


International nuclear safety research

NEA CSNI/CNRA Committee web page:• http://www.oecd-nea.org/nsd/

NEA Joint projects web page :• http://www.oecd-nea.org/jointproj/

Completed “Joint Projects” data (after 3 years): • http://www.oecd-nea.org/dbprog/


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