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Analysis to Support Implementation in Practice of Articles 8a-8c of Directive 2014/87/Euratom Workshop

Analysis to Support Implementation in Practice of Articles 8a-8c of Directive 2014/87/Euratom Workshop, 4th-5th July  2018, Luxembourg

The Energy Directorate of the European Commission ordered a study at ETSON on the implementation of the European Nuclear Safety Directive from 2014 into national legislation. The focus of the project is the implementation of the post-Fukushima safety requirements and measures. The project is coordinated by the German GRS; the IJS also participates as an ETSON members.

The purpose of the first workshop was to review the work done so far for the following work packages:

  1. “Review and assessment of international and European guidance documents”, run by German GRS,
  2. “Assessment of approaches and methodologies set in place at national Levels for the Implementation of the EU Safety Directive ", led by the French IRSN,
  3. “Performing a detailed study of the safety upgrades and existing reactors performed in selected Member States" conducted by the Department of Reactor Engineering.

Within the third work package, prof. dr. Leon Cizelj presented the draft report: “L. Cizelj, A. Prošek, A. Volkanovski, M. Uršič, Implementation and Practice of Articles 8a-8c of Directive 2014/87 / EURATOM - Reactor Safety Upgrades in Slovenia”.

Prof. dr. Leon Cizelj, head of the Reactor Engineering Division, and dr. Mitja Uršič attended the Workshop, which took place on 4th and 5th July 2018 in Luxembourg. The representatives of the Energy Directorate of the European Commission, ETSON representatives (JSI, German GRS, French IRSN, Belgian Bel V, Lithuanian LEI, Slovak VUJE, Czech CV Rez, Hungarian MTA-EK, Romanian RATEN ICE and Finnish VTT ), a representative of the OECD / NEA, representatives of the administrative authorities (the Netherlands, Germany, Belgium, Sweden, Slovakia, Romania), representatives of the EC JRC and the representative of the industry (ENISS) also attended the workshop.

CSARP / MCAP Meeting and MELCOR Users Workshop

CSARP / MCAP Meeting and MELCOR Users Workshop, Rockville, Maryland, USA, 4. – 15. 6. 2018


After a severe accident in the Fukushima nuclear power plant, nuclear safety standards have been increased. Consequently, severe-accident analyses are becoming an integral part of safety reports. To verify the analysis of severe accidents independently the MELCOR computer program is used, which can be obtained through participation in the U.S. NRC international cooperative research program CSARP (Cooperative Severe Accident Research Program). Slovenia has been a member of the CSARP program since the end of 2015, and has participated in it also in the period 1998-2005. As part of the CSARP research program, the CSARP/MCAP (MELCOR Code Assessment Program) is taking place every year in the USA. Because the use of the program is spread all over the world, the yearly meetings are also takin place in Europe (EMUG - European MELCOR User Group) and Asia (AMUG - Asian MELCOR User Group).

This year's CSARP / MCAP meeting took place in Rockville, Maryland, USA from 5th to 8th June 2018. Participants from 21 countries attended the meeting.  At the meeting the U.S. NRC, which runs CSARP program, MELCOR developers from Sandia National Laboratories, Albuquerque, New Mexico, USA, and CSARP partners presented their activities. The meeting was divided into the following sections:

  • Severe accidents research - activities, computer programs and experiments,
  • Reactor analyses and analyses of the spent fuel pool,
  • Corium cooling,
  • Specific topics in the field of severe accidents,
  • Application and evaluation of the MELCOR program.

After the meeting, from 11th to 15th June, the workshop for users of the MELCOR program took place. The workshop was held in the form of lectures by MELCOR developers and participants' exercise on their computers.

Meetings and workshop were attended by dr. Matjaž Leskovar from the Jožef Stefan Institute Reactor Engineering Division, who is the Slovenian coordinator for cooperation within the CSARP research program. At the CSARP meeting, he chaired the section "Severe Accident Research: Computer Programs and Experiments", and at the MCAP meeting, he held a presentation entitled "Overview of MELCOR Activities in Slovenia".

SAMHYCO-NET second meeting

SAMHYCO-NET second meeting, Karlsruhe, Germany, 3rd – 7th June 2018


The SAMHYCO-NET project is an in-kind project, created on the initiative of the “Institute of Radioprotection et de Sûreté Nucléaire (IRSN)” from France. The purpose of the project is the cooperation of research organizations in the field of hydrogen and carbon monoxide risk during a severe accident in a nuclear power plant. The content of the project involves the use of passive autocatalytic recombiners to reduce the amount of hydrogen, combustion of hydrogen and carbon monoxide in the nuclear power plant containment and simulate a severe accident scenario in a generic model of a containment involving the generation and combustion of hydrogen and carbon monoxide.


At the meeting, the participants presented their intended contributions with which they intend to participate in the project. A number of participating institutions will make available existing experimental results, while some will undertake new experiments only for the purposes of this project. Consequently, one of the results of the cooperation on the project will be the access to a lot of new experimental results from the field of hydrogen and carbon monoxide combustion. IJS intends to participate in the SAMHYCO-NET project by co-operating in simulating a serious accident in the generic model of containment and by continuing the simulations of hydrogen combustion experiments in experimental containment facility, which are carried out in cooperation with the Nuclear Research and Consultancy Group (NRG) from Netherlands for several years. At the meeting Tadej Holler, from IJS R4 division, presented the current and planned activities of the JSI in the field of computer simulations of hydrogen combustion.


The next meeting of the project is scheduled for April 2019 at IRSN headquarters in Fontenay-aux-Roses, France.

12th International Conference of the Croatian Nuclear Society - Nuclear Option for CO2 Free Energy Generation

12th International Conference of the Croatian Nuclear Society - Nuclear Option for CO2 Free Energy Generation

 

The two-year international conference "Nuclear Option for CO2 Free Energy Generation" is organized by the Croatian Nuclear Society (HND). The conference covers the following areas related to the use of nuclear power: nuclear reactor technology, reactor physics, fuel cycle, nuclear safety, radioactive waste management and disposal, operational experiences, environmental impact, public relations and legislation.

At this year's conference, seven invited lecturers discussed the following topics: the design of new small modular reactors, the improvement of safety in existing power plants, the elimination of nuclear power plant faults, operational experiences, compliance with the Paris Agreement, the thorium cycle and the disposal of radioactive waste. A roundtable discussion on challenges and opportunities in knowledge management took place. Discussions were also held on the progress in the development of small modular reactors, with an emphasis on opportunities for Europe. At the conference, 86 contributions were presented, among them two from the Reactor Engineering Division:

  • Prošek, M. Uršič, Review of design extension experiments and analyzes for non-degraded core, and
  • Uršič, M. Leskovar, V. Centrih, Study on premixture formation during fuel-sodium interaction.

The 12th international conference, held between June 3 and 6, 2018 in Zadar, Croatia, was attended by dr. Mitja Uršič from the Reactor Engineering Division. About 130 experts from around the world attended the meetings.

Spring 2018 CAMP meeting, Ottawa, Canada, 28.5. - 30.5.2018

Spring 2018 CAMP meeting, Ottawa, Canada, 28.5. - 30.5.2018

CAMP (Code Applications and Maintenance Program) is the largest research program under the auspices of the United States Nuclear Regulatory Commission (U.S. NRC) since 1993. Within the framework of the CAMP research program, the development and exchange of experience on system software RELAP5 and TRACE, neutronics program PARCS and graphical interface SNAP take place. In the CAMP, based on an agreement with the U.S. NRC, administrative bodies, research organizations and industry representatives from more than 20 countries are involved. Coordinator for Slovenia is the "Jožef Stefan" Institute (JSI) (in addition to JSI, Krško Nuclear Power Plant and the Slovenian Nuclear Safety Administration are participating).

The CAMP Spring Meeting was divided into two parts, namely technical and program part. In the technical part, the development of the RELAP5 and TRACE programs was first presented. Then, several CAMP countries (Belgium, Canada, Spain, South Korea, Slovenia) presented their reports. The JSI presented the contribution:

  • "Status of CAMP activities in Slovenia" (Andrej Prošek, Janez Kokalj).

The status reports on the NRC programs TRACE, PARCS, RELAP5 and SNAP followed. Finally, technical reports were presented.

Within the program part of the CAMP meeting, we discussed the need for further development of computer programs and tools for simulation of nuclear installations, as well as proposals for contributions in kind, which are a requirement for all participants in the CAMP.

This year's CAMP Spring Meeting, which was held from 28 - 30 May 2018 in Ottawa, Canada, was organized by the Canadian Nuclear Safety Agency (CNSC). Approximately 30 representatives attended the meetings. Janez Kokalj attended the meeting from the JSI, Reactor Engineering Division.

BEPU 2018 Conference, Lucca, Italy, 13.05. - 19.05, 2018

BEPU 2018 Conference, Lucca, Italy, 13.05. - 19.05, 2018

The BEPU-2018 International Conference (Best Uncertainty Plus Assessment) covers developments, applications and advancements in simulation programs and methods for calculating uncertainties in nuclear safety and technology. The last such type of conference was organized by the American Nuclear Society of America (American Nuclear Society) in Washington in 2000 and 2004. The first two conferences were limited to the field of thermo-hydraulics. This year's conference included a much broader spectrum of calculation uncertainty, among which methods of uncertainty in CFD (Computational Fluid Dynamics), structural analysis, reactor physics, and the uncertainty of other more complex simulations in the field of nuclear technology. The BEPU-2018 conference was held in the Italian city of Lucca by the local organization NINE (Nuclear and Industrial Engineering), and sponsored by ANS, the IAEA (International Atomic Energy Agency) at the NEA (Nuclear Energy Agency).

The conference program covered 6 different technical areas. There were 5 plenary sessions with 13 invited lectures and about 30 parallel technical sessions with more than 100 oral presentations. In six days of the conference, 6 different panel discussions were also held. Informal meetings at the conference were also important.

The conference in Lucca was attended by dr. Boštjan Končar from the Reactor Engineering Division, JSI. At the conference he presented the contribution entitled »BEPU application to CFD benchmark« by the authors of A. Prošek, ​​B. Končar and M. Leskovar.

WP5 Workgroup SOTERIA Project meeting

WP5 Workgroup SOTERIA Project meeting, EDF Lab Les Renardières, France, 17-18 May 2018


The SOTERIA project (»Safe long term operation of light water reactors based on improved understanding of radiation effects in nuclear structural materials«) is a four-year long European project launched on 1.9.2015 under the auspices of EURATOM in Horizon 2020. The main objective of the project is to improve the understanding of aging of steels used for the production of reactor pressure vessels and its internal components. With the research in the field of steel aging, key information which are necessary for the safe and long-term operation of existing European nuclear power plants, will be provided to the regulators and operators. Many European research centers (including IJS) and industrial partners are involved in the project. The project coordinator is CEA, France.

At the meeting of the WP5 workgroup, which deals with modeling and simulations, the work results of the first 30 months of the project were presented. The IJS participates in the project in

  • developing a model of crystalline plasticity for a mechanical description of neutron irradiated steels and
  • modeling of intercrystalline borders to simulate early damage or cracks.

At the meeting, the IJS together with IRSN, CNRS and CEA presented a comparison of two methods - the finite element method and the fast Fourier transform method - in the case of a tensile load of an irradiated polycrystalline aggregate. The title of the presentation was: »Intergranular stress calculation and irradiated stainless steel model using FEM and FFT approaches«.

The meeting, organized by the EDF in Les Renardierès, was attended by dr. Samir El Shawish of the Reactor Engineering Division from Jožef Stefan Institute.

GA-21 EUROfusion, Sofia, Bolgaria, 10.04.-12.04., 2018

GA-21 EUROfusion, Sofia, Bolgaria, 10.04.-12.04., 2018

European fusion research under Horizon 2020 brings together the targeted 5-year (2014-2018) fusion program EUROfusion, under the auspices of the EURATOM Treaty. The main objectives of the EU's fusion research are related to support of the ITER fusion reactor and, in the long term, the realization of the demonstration fusion power plant. The EUROfusion program is implemented by a consortium of EU member states' fusion research units (29 in total), where the Jožef Stefan Institute acts as a Slovenian coordinator and partner in the consortium. The leading partner in the consortium is the Institute of Plasma Physics (IPP), Germany. The decision-making body of the consortium is the General Assembly.

On April 11 and 12, 2018, 21st meeting of the General Assembly of EUROfusion took place in Sofia, Bolaria. The meeting was organized by Institute INRNE, Sofia. At the meeting, we became acquainted with the status of the Italian proposal of the I-DTT device, designed to test alternative diverter configurations. The location for I-DTT is already selected, the experimental facility will be built in the area of ​​the Frascati Research Center, in the province of Lazio. The Italian representative presented the proposed parameters and research objectives of the device. If the planning and construction of I-DTT will progress according to the foreseen plan, this device could become part of the European fusion program in the next research framework programme FP9, and a certain amount of financial resources will be reserved for this purpose. The EUROfusion program will be extended until the end of Horizon 2020. The formal decision of the European Commission is expected to be adopted during the Bulgarian Presidency of the European Union. For the years 2019 and 2020, the EC already envisaged 159 Mio EUR and 169 Mio EUR, of which 60 Mio EUR for DT and TT experimental campaigns on the European JET Tokamak. We also confirmed the new head of the EUROfusion administrative unit, Emilio Genengeli, ENEA. Regarding Brexit, the British representative informed the Assembly that the British government had adopted a government document in January this year, which for the first time clearly shows the willingness to continue the activities under the Euratom Treaty. The general assembly of EUROfusion was attended by Dr. Boštjan Končar from the Reactor Engineering Division, JSI.

22nd meeting of SNETP Management Board

22nd meeting of SNETP Management Board, Brussels, 24.1.2018

The European Technology Platform for Sustainable Nuclear Energy SNETP, joins more than 117 nuclear stakeholders from all European nuclear countries. Among the key objectives of the platform is the preparation of strategic development documents, especially for research and development in the field of 2nd and 3rd generation reactors, 4th generation and cogeneration of heat and electricity with nuclear reactors. In the framework research programs, the European Commission co-finances projects that relate to strategic development priorities prepared and mutually coordinated by stakeholders of the platform.

The Governing Board took note of preparations for the registration of SNETP in the legal form of the international non-profit association AISBL under Belgian law. The establishment and the start of operations are expected in the second half of 2018.

The meeting, hosted by the Belgian Nuclear Research Institute - SCK-CEN, was attended by prof. dr. Leon Cizelj, head of Reactor Engineering Division.

General Assembly, Governing Board and 15th Anniversary of ENEN

General Assembly, Governing Board and 15th Anniversary of ENEN, Brussels, Belgium, 28.2.-2.3.2018

More than 60 ENEN members represent the majority of European universities and research institutes that educate in the field of safe use of nuclear energy. In the 15 years of its existence, the association succeeded to develop standard curricula, mutual recognition of credits, a relatively large exchange of students and teachers, and several pilot training schemes.

On the 15th anniversary, a number of high-ranking guests attended the colloquium, which discussed the challenges and opportunities for education and training in nuclear science and technology. We agreed that all stakeholders in the future should focus more intensively on attracting, developing and retaining new talent in nuclear careers.

The Governing Board and the Assembly discussed about the current state of transfer of activities from ENEN registered in France to ENEN AISBL, which we registered as an international non-profit association in Belgium. Currently, all business is carried out through ENEN, and the transfer to ENEN AISBL is planned in June 2018.

ENEN association awards the title of European magister of nuclear technology to nuclear engineering graduates, who have completed their study at ENEN member university in the amount of 300 ECTS (5 years), while at least 20 ECTS have been obtained through studies or research work in other ENEN members. Over the course of ten years, more than 150 young graduates have received this title.

General assembly, governing board meeting and celebration of the 15th anniversary of the association, held on the 1st and 2nd March were organized in Brussels by ENEN and it was attended by prof.dr. Leon Cizelj, head of the Reactor Engineering Division and President of ENEN.

Initial meeting of the ENER / D3 / 2017-209-2 project, Luxembourg, Luxembourg

Initial meeting of the ENER / D3 / 2017-209-2 project, Luxembourg, Luxembourg, 18-19 February 2018

The Directorate-General for Energy of the European Commission commissioned the association of authorized nuclear safety experts - ETSON to study the implementation of the european nuclear safety directive from 2014 in the national legislation. The focus of the project is on the implementation of the post-Fukushima security requirements and measures.

The project is co-ordinated by the German GRS, and in addition to the other ETSON members, the JSI-R4 also participates as a leader of the work package " Performing a detailed study on the safety upgrades in existing reactors performed in selected Member States ". Slovenia is currently the leader in this field in Europe.

The meeting, organized by the Directorate-General for Energy in Luxembourg, was attended by prof. dr. Leon Cizelj, Head of the Reactor Engineering Division, JSI.

Seminar "Euratom Nuclear Fission Research and Training: What Are the New Needs?" and the General Assembly of the SNETP, Brussels, Belgium

Seminar "Euratom Nuclear Fission Research and Training: What Are the New Needs?" and the General Assembly of the SNETP, Brussels, Belgium, 20. - 22. 2. 2018

The European Commission organized a seminar on needs in nuclear research and education, in which it sought to obtain, the opinions and ideas of stakeholders on the substantive priorities for the 9th framework program. Prof. dr. Leon Cizelj, head of the Reactor engineering division and president of the ENEN Committee, was invited as a moderator of the discussions on education and training.

The SNETP Assembly get acquainted with the preparations for registering SNETP in the legal form of the international non-profit association AISBL under Belgian legislation and confirmed the following steps in this process. The establishment and the start of operations are expected in the second half of 2018.

The events, organized by the European Commission and SNETP in Brussels, were attended by prof. dr. Leon Cizelj, head of the Reactor engineering division, JSI.

WPDC Final Meeting, Garching, Germany

Final Meeting of WPDC (Diagnostic & Control), Garching, Germany, 20.12.2017


The WPDC (Diagnostic & Control) project is one of the European Fusion Development Association's strategic missions to achieve the long-term goal of building the DEMO demonstration fusion power plant by the year 2050. The WPDC project aims to provide an integrated concept for the design of diagnostic and control systems in the DEMO power plant.

At the closing meeting for 2017, the representatives of the partner organizations in the project presented the results of their work in 2017 by individual fields. The JSI participates on the project in the WP2 work package "System engineering and design integration", whereby system engineering is performed by the subcontractor Cosylab d.d. and the design integration and the associated engineering calculations are performed by the Reactor Engineering Division. At the meeting, Cosylab d.d. and the JSI separately presented their results and contributions. The JSI presented the analysis of the influence of the thermal-electric current on the mechanical stresses in the divertor. At the meeting, we also agreed to define in detail the specification of works for the year 2018 in the coming weeks.

Meeting held on 20.12. at Garching, was organized by the project manager Wolfgang Biel, and was attended by dr. Samir El Shawish from Jožef Stefan Institute Reactor Engineering Division.

GA-20 EUROfusion, Barcelona, Spain

GA-20 EUROfusion, Barcelona, ​​Spain, 18-19 December, 2017

European fusion research under Horizon 2020 brings together the targeted 5-year (2014-2018) fusion program named EUROfusion, under the auspices of the EURATOM contract. The EU's main objectives of fusion research are related to support of the ITER fusion reactor and, in the long term, the implementation of the demonstration fusion power plant. The EUROfusion program is implemented by a consortium of Member States' fusion research units (29 in total), where the Jožef Stefan Institute acts as a Slovenian coordinator and partner in the consortium. The leading partner in the consortium is the Institute of Plasma Physics (IPP), Germany. The decision-making body of the consortium is the general assembly.

On 18.12. and on 19.12.2017, the 20th meeting of the General Assembly of EUROfusion took place in Barcelona, ​​Spain. The meeting was organized at the headquarters of the ITER European Agency (F4E). At the meeting, we discussed the report of the Expert Group on the European program of breeding blankets. The main purpose of the expert group was to harmonize the Test Blanket Module Test (TBM) program in ITER, coordinated by F4E and the project of development of breeding blankets for DEMO reactor - Work Package Breeding Blanket (WPBB), which is in the EUROfusion program. The Group has made several technical and program recommendations in the direction of program consistency. The main changes to the TBM program for ITER include the incorporation of a water-cooled coating into the test program and the financial and personnel participation of EUROfusion in the TBM program. The Assembly approved the proposed amendments. Part of the EUROfusion program also includes smaller fusion devices in Europe. At the meeting were presented the progress of the COMPASS tokamak upgrade in the Czech Republic and the status of the EDIPO Testing Device in Switzerland, aimed at testing high magnetic fields, above 10 T. Dr. Boštjan Končar from the Reactor Engineering Division, IJS, attended the General Meeting of the EUROfusion.

H2020 project ANNETTE Working Meeting, Halden, Norway

Working meeting within the H2020 project ANNETTE, Halden, Norway, 10.12.-12.12.2017

The ANNETTE project (Networks for Nuclear Education and Transfer of Expertise) is aimed at promoting coordinated participation of all nuclear stakeholders in the planning and delivery of education and training. The project, which has 24 partners, is co-financed by the European Commission under Horizon 2020 (EURATOM Fission).

The meeting was dedicated to the planning and final division of work between partners in the Work Package 5, which is dedicated to education in the field of nuclear safety culture. The role of the associates of the Jožef Stefan Institute in the project is to coordinate cooperation with technological platforms and other professional associations in Europe, as well as beyond its borders.

The meeting, organized by the Uppsala University at the premises of the Norwegian Energy Institute IFE, was attended by prof. dr. Leon Cizelj, Head of the Reactor Engineering Division.

EUROSAFE Forum, TSO Cafe, Governing Board and General Assembly of ETSON, Paris, France

EUROSAFE Forum, TSO Cafe, Governing Board and General Assembly of ETSON, Paris, France, 5.11.-8.11.2017

The EUROSAFE Forum was held on 6th and 7th of November in 2017. It was organized by IRSN in Paris and is intended primarily for authorized experts in nuclear and radiation safety. Leading partners are Bel V ​​(Belgium), GRS (Germany) and IRSN (France), while the IJS is one of the partners. About 300 participants took part in the conference. In the first plenary session of the conference, the emphasis was on the harmonization of nuclear regulations in Europe, the challenges of nuclear safety in France and the response to the health crisis in the onset of the Ebola virus in Guinea. During the conference, the presentation of authorized experts, members of ETSON, where the IJS was presented, by Ms. Tanja Klopčič. In the second part of the conference, the main topics were nuclear safety and security, radioactive materials management and radiation safety.

On the 8.of November the ETSON organized several meetings at the IRSN (Fontenay aux Roses). Prof. dr. Leon Cizelj attended the meeting of the Management Board and the General Assembly. The ETSON Association was established with the aim of expert networking of accredited experts for nuclear and radiation safety. The association brings together experts from the Member States of the European Community, Japan, Russia and Ukraine.

ANS Winter Meeting, Washington

ANS Winter Meeting, Washington, USA, 28.10.-2.11.2017

Each year, the American Nuclear Society organizes two major conferences called the Summer and Winter Meetings. The winter meeting in 2017 was dedicated primarily to the status and perspectives of the nuclear energy in the US and around the world, and in this connection also with prospects and opportunities for young people who are choosing a career path.


It is customary to conduct a number of accompanying meetings during the conference. For us interesting meetings were held by Nuclear Engineering Department Heads Organization and the Committee on International Cooperation.


Conference and accompanying meetings were attended by prof. dr. Leon Cizelj, head of the Reactor Engineering Division.

ENEN+ meeting for work packages WP1 and WP2, Budapest, Hungary

ENEN+ meeting for work packages WP1 and WP2 Budapest,

Hungary, 30. 11. - 1. 12. 2017

The ENEN+ project entitled "Attract, Retain and Develop New Nuclear Talents Beyond Academic Curricula" belongs to the portfolio of Horizon 2020 EURATOM projects. The main purpose of the ENEN+ project is to contribute to the revitalization of the interests of younger generations for occupations in the nuclear sector. For this purpose, the following main activities are foreseen:

  • Attract new talents to careers in nuclear.
  • Develop the attracted talents beyond academic curricula.
  • Increase the retention of attracted talents in nuclear careers.
  • Involve the nuclear stakeholders within EU and beyond.
  • A revitalized interest in nuclear professions through the establishment of a mobility fund and the voluntary accreditation of nuclear education and training.

The 22 partners of the ENEN + project will focus mainly on professions and experts in the fields of nuclear technology and safety, the disposal of radioactive waste, radiation protection and nuclear applications in medicine. Among the partners are European universities and research institutes, industry (Westinghouse, Tecnatom, EDF) and international organizations (ENS, FORATOM, IAEA, NUGENIA, EFOMP), and from Slovenia “Jožef Stefan” Institute and the Faculty of Mathematics and Physics of the University of Ljubljana. The project is coordinated by ENEN, led by prof. dr. Leon Cizelj from the Reactor Engineering Division from the “Jožef Stefan” Institute.

The ENEN + project meeting for the WP1 "Attract new nuclear talents in secondary schools" and WP2 "Increase attraction and retention of new talents among undergraduate students" took place at Budapest University of Technology and Economics, Institute of Nuclear Techniques from 30.11.-1.12. 2017. At the meeting, the participants in the project agreed on the implementation of the planned activities and on concrete assignments. The meeting was attended by dr. Matjaz Leskovar from the Reactor Engineering Division from the “Jožef Stefan” Institute.

 

Fall 2017 CAMP Meeting, Ann Arbor, USA

Fall 2017 CAMP Meeting,

University of Michigan, MI, Ann Arbor, USA, 28 - 30. 11. 2017

CAMP (Code Applications and Maintenance Program) is a research program under the auspices of the US NRC (Nuclear Regulatory Commission) since 1993. Within the framework of the CAMP research program, the development and exchange of experience regarding the RELAP5 and TRACE system software programs, the PARCS neutron program and the SNAP graphic interface are under way. In the CAMP, based on an agreement with the U.S. NRC currently participates in more than 20 countries. “Jožef Stefan” Institute (JSI) is the coordinator for Slovenia (besides the IJS, the Nuclear Power Plant Krško and the Slovenian Nuclear Safety Administration also participate).

The CAMP Autumn Meeting was divided into two parts: technical and programmatic. In the technical part, the U.S. NRC presented the development status of U.S. NRC computer programs TRACE, RELAP5, PARCS and SNAP. Reports of nine CAMP member countries (Finland, Croatia, South Korea, Canada, Poland, Slovenia, Sweden, Switzerland and Taiwan) followed. The IJS presented the contribution:

  • "Status of CAMP Activities in Slovenia" by Andrej Prošek.

18 technical reports were presented, related to the use of computer programs RELAP5, TRACE and PARCS. Within the program part of the CAMP meeting, we discussed the need for further development of system programs for the simulation of nuclear facilities and proposals for contributions in kind. JSI proposed a contribution in kind for the year 2018 entitled "Semiscale S-NC-02 and S-NC-03 natural circulation tests performed by RELAP5 / MOD3.3 Patch 5", which was approved by the technical program committee.

This year's CAMP autumn meeting, held from 28-30 November 2017 at the University of Michigan, Ann Arbor, USA, was organized by the University of Michigan, the Department of Nuclear Engineering and Radiological Science under the auspices of the U.S. NRC. Nearly 50 representatives from 16 countries attended the meetings, of which one third from the host country. From the JSI, Reactor Engineering Division, the meeting was attended by dr. Andrej Prošek.

3. MITHYGENE-ETSON hydrogen deflagration benchmark meeting

Third meeting on MITHYGENE-ETSON hydrogen deflagration benchmark

Paris, France, 22nd and 23rd November 2017


As part of the French MITHYGENE project, active since 2013, joined by members of ETSON, the ENACCEF2 experimental device was designed and built, offering unique possibilities for studying accelerating and quenching of the flame. Some of the hydrogen combustion experiments carried out in the project will also be used as a measure (combustion benchmark) for a comparative study of the calculation codes used in safety analyzes of hydrogen combustion in nuclear power plants containments. ETSON is a European association of certified experts for nuclear (and radiation) Safety. Several working groups and committees work within the association.


At the third meeting, the partners presented and analyzed the results of simulations of the second part, where the results of the experiments were not known in advance. The results for IJS were contributed from Ivo Kljenak and Tadej Holler. The results of first were obtained using ASTEC system code, while the second acquired the results using the ANSYS Fluent CFD code.


IRSN will as the project coordinator in cooperation with its partners, issue a benchmark report on the hydrogen combustion study in the ENACCEF2 experimental facility in January 2017. Prior to this, the partners will contribute possibly improved second phase results, taking into account the known results of the experiments.


The third meeting for the MITHYGENE-ETSON combustion benchmark, which was again hosted by IRSN at its premises in Fontenay-aux-Roses on the outskirts of Paris, took place on 22 and 23 November 2017. As a representative of the Jožef Stefan Institute, Tadej Holler from the Reactor Engineering Division.

2. SOTERIA project General Assembly meeting

2nd meeting of the General Assembly of the SOTERIA project, Madrid, Spain, 6-8 November 2017

The SOTERIA project ("Safe long-term operation of light-water reactors based on a better understanding of radiation effects in nuclear structural materials") is a four-year European project launched on 1.9.2015 under the auspices of Horizon 2020 EURATOM project. The main objective of the project is to improve understanding the phenomena of steel aging used for the production of pressure pipelines and its internal components. With the research in the field of steel aging, key information will be provided to regulators and operators, which are necessary for the safe and long-term operation of existing European nuclear power plants. Many European research centres (including IJS) and industrial partners are involved in the project. The project coordinator is CEA (France).

At the 2nd meeting of the General Assembly, we verified the status of the project after 24 months of operation according to the goals set. We identified some minor delays in issuing internal reports, but no significant deviations from the scheduled plans were detected. The SOTERIA project received a positive assessment from the European Commission for the first 18 months of work. The JSI participates on the project in the development of a crystalline plastic model for the mechanical description of neutron-irradiated stainless steels and for the modelling of inside crystal borders to simulate the formation of early damage and cracks. At the meeting, the IJS presented two studies: the analysis of the accuracy of cohesive finite elements in the Abaqus program (titled Grain boundary modelling with cohesive zone approach) and the analysis of stress fields in large, realistic polycrystalline aggregates (titled: "Stress fields in large polycrystalline aggregates «) carried out by the JRC.

The meeting, organized by CIEMAT in Madrid, was attended by dr. Samir El Shawish from Reactor Engineering Division.

SAMHYCO-NET Kick-Off Meeting, Fontenay-aux-Roses, France

SAMHYCO-NET Kick-Off Meeting, Fontenay-aux-Roses, France

 

The SAMHYCO-NET project is an in-kind project, created on the initiative of the Institute of Radioprotection et de Sûreté Nucléaire (IRSN) from France. The purpose of the project is to involve research organizations in the field of hydrogen risk during a severe accident in a nuclear power plant. The project initiative followed the unsuccessful proposal of the SAMHYCO project for the European Commission's Horizon 2020 call. The project's content is part of the content foreseen in the SAMHYCO project: the use of passive autocatalytic hydrogen recombiners for lowering of the hydrogen concentration, the combustion of hydrogen in the nuclear power plant and the simulation of hydrogen combustion in the generic model of the containment chamber.

The initial meeting of the project was attended by representatives of the following organizations: NRG (Netherlands), Forschungszentrum Juelich (Germany), Becker Technologies (Germany), JAEA (Japan), Nagaoka University of Technology (Japan), MRI (Japan), CIEMAT (Spain), SSTC NRS (Ukraine), LEI (Lithuania), University College of Southeast Norway (Norway), KIT (Germany), Shanghai Jiao Tong University (China), JSI (Slovenia), CNRS (France) and EDF (France). At the meeting, all participants confirmed the intention to participate in the project, and presented what our (expected) contributions would be. Warsaw Institute of Technology (Poland) and PSI (Switzerland) will also participate in the project.

JSI intends to participate in the SAMHYCO-NET project by continuing simulations of hydrogen combustion experiments in experimental containment devices, which have been successfully carried out in cooperation with the Nuclear Research and Consultancy Group (NRG) from the Netherlands for many years. At the meeting, dr. Dirk Visser from NRG presented a joint presentation:

Hydrogen Deflagration Modelling (E. M. Komen, T. Holler, I. Kljenak, D. Visser).

The next project meeting is scheduled for June 2018 at the Karlsruhe Institute of Technology (Germany).

The SAMHYCO-NET Kick-Off Meeting, held on 18 and 19 October 2017 in Fontenay-aux-Roses (France), organized by the Institut de Radioprotection et de Sûreté Nucléaire (France), was attended by dr. Ivo Kljenak from the Reactor Engineering Division, JSI.

ENEN+ Kick-Off Meeting and ENEN Association Board of Governors Meeting

ENEN+ Kick-Off Meeting and ENEN Association Board of Governors Meeting, Brussels, Belgium, 2.-4. 10. 2017

ENEN+ Project entitled »Attract, Retain and Develop New Nuclear Talents Beyond Academic Curricula« belongs to the portfolio of EURATOM Horizon 2020 projects. The main purpose of ENEN + is to contribute to the revitalization of the interests of younger generations for occupations in the nuclear sector. For this purpose, the following activities are planned:

  • Attract new talents for the nuclear professions.
  • Develop new talents beyond academic curricula.
  • Retain more new talents in nuclear professions through enhanced mentoring and mobility support.
  • Include nuclear stakeholders in the European Community and abroad.
  • A revitalized interest in nuclear professions through the establishment of a mobility fund and the voluntary accreditation of nuclear education and training.

The 22 partners of the ENEN + project will focus mainly on professions and experts in the fields of nuclear technology and safety, the disposal of radioactive waste, radiation protection and nuclear applications in medicine. Among the partners are European universities and research institutes, industry (Westinghouse, Tecnatom, EDF) and international organizations (ENS, FORATOM, IAEA, NUGENIA, EFOMP), and from Slovenia the Jožef Stefan Institute and the Faculty of Mathematics and Physics of the University of Ljubljana. The project is coordinated by ENEN, led by prof. dr. Leon Cizelj.

The kick-off meeting of the ENEN+ project took place at the premises of the European Commission in Brussels from October 2nd to October 3rd 2017. At the meeting, the leaders of individual work packages and tasks presented the planned activities and discussed them with their partners. The kick-off meeting was attended by dr. Matjaž Leskovar and prof. dr. Leon Cizelj from the Reactor Engineering Division of Jožef Stefan Institute.

The next day was the meeting of the board of directors of ENEN, president of which is prof. dr. Leon Cizelj.

CSARP / MCAP meeting and MELCOR users workshop

CSARP / MCAP meeting and MELCOR users workshop

After a severe accident in the Fukushima nuclear power plant, nuclear safety standards have been tightened. Thus, severe accident analyzes are becoming an integral part of the safety reports. To independently verify the analysis of severe accidents, the MELCOR computer program is mostly used. It can be obtained through participation in the U.S. NRC international cooperative research program CSARP (Cooperative Severe Accident Research Program). Slovenia has been a member of the CSARP program since the end of 2015, and has participated in it already before, in years between 1998 and 2005. As a part of the CSARP research program, the CSARP/MCAP meeting (MELCOR Code Assessment Program) is being held every year in the USA. Because of the wide use of the program, for many years also regional summer meetings for European (EMUG - European MELCOR User Group) and Asian (AMUG - Asian MELCOR User Group) MELCOR users have been held.

This year's CSARP/MCAP meeting was held in Bethesda, Maryland, USA between 12. and 15. September, 2017. Before the meeting, on September 11, was a workshop for the MELCOR users. About 50 participants from 22 countries participated at the workshop and at the meeting. The workshop was in the form of lectures by MELCOR developers and exercises for the participants on their computers. The workshop focused on a new models and capabilities of the MELCOR program. At the CSARP / MCAP meeting, the U.S. NRC, which runs the CSARP, MELCOR developers from Sandia National Laboratories, Albuquerque, New Mexico, USA, and CSARP partners presented their activities. The meeting was divided into the following sections:

  • Severe accidents research - activities, computer programs and experiments,
  • Reactor and spent fuel pool analysis,
  • Fukushima and severe accident management,
  • Fission product scrubbing research,
  • MELCOR applications and assessment.

The meeting was attended by Dr. Matjaž Leskovar from the Reactor Engineering Division, Jožef Stefan Institute, who is the Slovenian coordinator for cooperation within the CSARP research program.

NURETH-17

NURETH-17 Conference, 3. - 8. September 2017, Xi'an, Kitajska

From 3rd to 8th September 2017 two of our colleagues attended the 17th International Topical Meeting on Nuclear Reactor Thermal Hydraulics NURETH-17, organized by the Xi'an Jiaotong University and represents the most important global conference in the field of nuclear thermohydraulics.

At the conference, we presented or co-authored three articles:

  • Quantification of the Discontinuity of the Temperature Variance Dissipation Rate at a Fluid-Solid Interface: A Wall-Resolved Large Eddy Simulation of Turbulent Channel Flow with Conjugate Heat Transfer. , Cedric Flageul, Iztok Tiselj, Sofiane Benhamadouche, Martin Ferrand (EDF R & D).
  • Direct Numerical Simulations of Sodium Flow Over a Backward Facing Step, Jure Oder, Iztok Tiselj
  • Design and Pre-Evaluation of a Backward Facing Step Experiment with Liquid Metal Coolant, Wadim Jaeger, Thomas Schaub Hahn, Wolfgang Hering, Ivan Otic (KIT), Afaque Shams (NRG), Jure Oder, Iztok Tiselj

The first one was created in the framework of our cooperation with Electricite de France (EDF) and the other two in the framework of the EU project H2020 SESAME. In addition, Iztok Tiselj led one of the sessions on the topic of computational fluid dynamics. The conference was also an opportunity for informal meetings with partners from our international research groups and for inclusion in new international project initiatives.

SMiRT 2017 Conference

International Conference on Structural Mechanics in Reactor Technology (SMiRT), 20. - 25. Avgust 2017, Busan, South Korea

The international conference on Structural Mechanics in Reactor Technology (SMiRT) is a biennial conference organized since 1971 by the International Association for SMiRT (IASMiRT). The IASMiRT is a non-profit organization based in Berlin founded by Professor Thomas A. Jaeger. The participants of the conference become automatically part of the association and have the right to attend and vote in the general assembly organized during the conference.

About 610 abstracts were initially submitted to the 24th SMiRT conference. A total of 478 papers were orally presented during 10 technical sessions, 2 state of the art sessions and 10 special sessions organized in 7 parallel tracks. In total, 506 registered participants joined the conference mostly from Korea, Japan, China, UK, Germany and France. It was agreed during the general assembly that IASMiRT will change its registration country from Germany to USA, becoming thus an American organization. The reason for this being that full tax exempt of SMiRT conferences is no longer possible under German law.

The SMiRT 24 conference was hosted by the Korean Nuclear Society and the Korean Pressure Vessel and Piping association in Busan, South Korea from 20th to 25th of August, 2017. The conference was attended by Dr. Oriol Costa, research assistant of the Reactor Engineering Division of Jožef Stefan Institute. He presented a joined paper with the Finish research institute, VTT in the technical session of Characterization of Loads.

Presentation of the Reactor Engineering Division, JSI to the URSJV

Presentation of the Reactor Engineering Division, JSI to the URSJV

 

On Wednesday, August 23, 2017, employees of the Reactor Engineering Division, JSI visit the URSJV (Uprava Republike Slovenije za jedrsko varnost – Slovenian Nuclear Safety Administration) to present their work and strengthen their contacts with the URSJV.

At the beginning, prof. Leon Cizelj, head of the Reactor Engineering Division, described the division's mission, key areas of activity and ongoing projects. He emphasized the role of authorized nuclear safety organizations in terms of their funding, independence, professionalism, research activity, the impartiality of their choice by the holder of the authorization and other parameters that are important for the quality work of the authorized organizations. The division members are active in education both within ENEN (European Nuclear Education Network) and at the Department of Reactor Engineering at the Faculty of Mathematics and Physics. He emphasized the international involvement of the department and the cooperation with various organizations, and sought to find comparability and differences with other authorized organizations in the world. He set his presentation as a challenge for further debate.

Presented was the research of the employees of the division in the following areas:

 - nuclear thermodynamics,

 - fatigue materials related to the aging of equipment,

 - probabilistic safety analyses, their input data and their use,

 - simulations of severe accidents with core melting and related experiments,

 - heat transfer and mechanical loads in individual components of the fusion power plant.

For many of the aforementioned research areas, the Reactor Engineering Division is the only organization in Slovenia that is working on it.

In conclusion, we all agreed that knowledge, including research by the division, is an important factor in ensuring nuclear safety so far and should remain so in the future. With regard to strategic guidelines, what to explore and where to get financing for this, further cooperation of all stakeholders will be needed.

  

Source: URSJV website http://www.ursjv.gov.si/en/info/novica/article/4597/5976/

Second MITHYGENE-ETSON hydrogen deflagration benchmark meeting

Second MITHYGENE-ETSON hydrogen deflagration benchmark meeting,

Paris, France, June 16, 2017

 

As part of the French project MITHYGENE, active since 2013, and joined also by the ETSON members, an experimental device ENACCEF2 was designed and built. It offers unique possibilities for study of acceleration, deceleration and flame quenching. Some of the hydrogen combustion experiments within the project will be used also as a combustion benchmark for comparative study of calculation codes used in safety analysis of hydrogen combustion in nuclear power plants containments. ETSON is a European Technical Safety Organization Network. There are several working groups and committees in the framework of the association.

At the second meeting, the participating partners presented and analyzed the results of the open phase work simulations. From JSI, the results were contributed by Ivo Kljenak and Tadej Holler. The first one obtained his results using so-called system code ASTEC, while the other one used a computational fluid dynamics program ANSYS Fluent.

The last meeting will be held again at the IRSN in Paris and is foreseen for November 22 and 23, 2017. On this meeting, the results of the second phase will present, where the experimental results will not be known in advance.

The second MITHYGENE-ETSON combustion benchmark meeting was hosted by IRSN in in Paris on June 16, 2017. As a representative from Jožef Stefan Institute, it was attended by Tadej Holler from the Reactor Engineering Division.

Lecture at the regional course for the DEVCO Directorate

Lecture at the regional course for the DEVCO Directorate

Yerevan, Armenia, 26-28 April 2017

 

Within the framework of the Instrument for Nuclear Safety Cooperation (INSC) funded by the European Commission within the DEVCO Directorate, we are involved in the training of members of nuclear regulatory authorities and their authorized experts in third countries.

Most courses were conducted at home in cooperation with the ICJT. This time exceptionally, we also helped implementing the regional course in Yerevan, Armenia.

At a course organized by the coordinator of the ITER Consult project in Yerevan, Armenia, lectured also prof. Dr. Leon Cizelj, Head of the Reactor Engineering Division, JSI .

Meeting for the preparation of the SET action plan for the nuclear energy

Meeting for the preparation of the SET action plan for the nuclear energy

Brussels, Belgium, 13.7.2017

 

Strategic Energy Technologies (SET) Plan is one of the European Union's most important strategic documents in the field of energy development and research. It is prepared by the European Commission and it is confirmed by the Steering Committee, composed of the Member States representatives.

In 2016, the European Commission undertook a renewal of the SET Plan. For this purpose, it has prepared the position paper, which was given in a wide public debate for all members and stakeholders. An action plan is under preparation now, for which the bases are preparing by working groups. At this meeting, the group for nuclear energy made all the necessary arrangements for the European Commission to prepare an action plan.

The meeting, organized by the SET Plan secretariat in Brussels, was as the president of the ENEN attended by prof. Dr. Leon Cizelj, Head of the Reactor Engineering Division.

Invited lecture at the Nuclear 2017 conference

Invited lecture at the Nuclear 2017 conference

Pitesti, Romania, 23.-26.5.2017

 

The Nuclear 2017 conference, the annual conference of Romanian nuclear experts, was attended by about 200 experts, mainly from Romania. Prime Minister Sorin Grindeanu and Research Minister Serban Valeca also visited it.

At a conference held at the Romanian Nuclear Research Institute RATEN-ICN near the city of Pitesti in Romania, Prof. Dr. Leon Cizelj, Head of the Reactor Engineering Division, had an invited lecture entitled "The role of ENEN in attracting, developing and retaining nuclear talents".

Meeting of the ETSON Management Board and ETSON General Assembly

Meeting of the ETSON Management Board and ETSON General Assembly

Frascati, Italy, June 25-27 2017

 

Nearly ten years ago, ETSON was established with the aim of professional networking of accredited nuclear and radiation safety experts working in the Member States of the European Community. During this time, our colleagues from Japan, Russia and Ukraine joined us. Members of ETSON must be authorized experts in the country in which they are registered, they must implement a long-term research program in the field of nuclear safety and must operate as a non-profit organization.

Among the most important activities of ETSON are joint research projects, exchange of experience, cooperation in the human resources development, assistance to national administrations in harmonizing nuclear safety requirements and helping to establish a nuclear safety infrastructure in the countries that are just choosing the nuclear power.

The regular semi-annual meetings of the ETSON Management Board and the ETSON General Assembly held an overview of the performed work of the association in the first half of year 2017 and outlined the work in the second half of 2017. Particular attention was paid to the consideration of strategic objectives and ways to achieve them, as well as the participation of the ETSON Management Board at the international conference Nuclear Energy for New Europe in September 2017 in Bled.

The meeting, organized by ENEA in Manchester, was attended by prof. Dr. Leon Cizelj, Head of the Reactor Engineering Division, JSI.

18. Meeting of the General Assembly of EUROfusion

18. Meeting of the General Assembly of EUROfusion Culham, United Kingdom, July 13 - July 15, 2017
 


European fusion research in the frame of the Horizon 2020 are united together in the targeted 5-year (2014-2018) fusion program EUROfusion, which is under the auspices of the EURATOM Treaty. The basic objectives of the EU fusion research are related to support of the ITER fusion reactor and in the long run, towards the demonstration fusion power plant. The EUROfusion program is implemented by a consortium of 29 fusion research units of EU members, where the Jožef Stefan Institute acts as a Slovenian coordinator and partner in the consortium. The leading partner in the consortium is the Institute of Plasma Physics (IPP), Germany. The decision-making body of the consortium is the General Assembly.

 

On July 13 and 14, 2017, the 18th meeting of the General Assembly of EUROfusion at the Culham Center for Fusion Energy (CCFE) took place in Culham, Great Britain. The first day of the assembly was attended also by the Director of the European Agency Fusion for Energy - F4E, who presented the progress of the ITER project with an emphasis on the activities that the F4E Agency conducts with the EUROfusion consortium. The largest activities are the development of the source of the neutral particles MITICA in Padova and the ITER breeding blanket test model. Also, both European organizations work together to develop diagnostics for the Japanese tokamak JT60-SA. Among the most important points at the General Meeting, the proposal for the reorganization of the DEMO project management and the strategy for communication with the public within the framework of the EUROfusion program was presented. After the meeting, GA members visited the Joint European Torus (JET) fusion device, which is currently in the process of upgrading and preparing for the most important experimental operation with deuterium and tritium. The General Assembly meeting of the EUROfusion was attended by Dr. Boštjan Končar from the Reactor Engineering Division, JSI.

Fermi course: Leading a nuclear business

Fermi course: Leading a nuclear business. Competence development for academic teachers, Uppsala, Sweden, 29th - 30th May 2017

On 29th and 30th of May 2017 dr. Tiselj attended a workshop for teachers in the field of education in nuclear engineering organized by INBEx (Institute for Nuclear Business Excellence) in cooperation with the ENEN (European Nuclear Education Network) association. The course was organized at the University of Uppsala by a former professor of the university and later associate of Vattenfall (owner of Swedish nuclear power plants) company and today’s INBEx Director of the Institute, Dr. Jan Blomgren.

The participants (8 teachers) divided into two independent team of operators of nuclear power plants for two days. For the period of six years, they had to provide for the efficient, safe and socially acceptable operation of the plant under the uncertain conditions of the deregulated electricity market. With confronted unexpected technical, economic and societal challenges (all based on real experiences of various plants around the world), the professors experienced the complexity of decision-making based on incomplete information and the various opinions of experts, public, regulators and employees.

According to attendee, participation in this workshop can help someone make better decisions and impact on improving communication between stakeholders in the nuclear energy industry

Spring 2017 CAMP Meeting

Spring 2017 CAMP Meeting,  Warsaw, Poland, 22.-24. 5. 2017

CAMP (Code Applications and Maintenance Program) is the largest research program conducted under the auspices of the United States federal Nuclear Regulatory Commission U.S. NRC since 1993. As part of the CAMP the development and exchange of experience on system software RELAP5 and Trace, software for neutron calculations PARCS and graphical interface SNAP took place. Based on an agreement with the U.S. NRC several administrative authorities, research organizations and industry representatives from more than 20 countries are cooperating in the CAMP program. Participants from Slovenia (JSI, Krško Nuclear Power Plant, and the Management Board of the Slovenian Nuclear Safety) are coordinated by the »Jožef Stefan« Institute.

CAMP Spring Meeting was divided into two parts, a technical and programming part. In the technical part at first were presented reports of some CAMP Member States (Belgium, Czech Republic, Croatia, Canada, Poland and Spain), which was followed by the status report on the software development of the U.S. NRC: TRACE, PARCS, RELAP5 and SNAP. In the end, the technical reports (16 in total) were presented. JSI presented a paper:

  • "RELAP5 and TRACE Simulation of Hot Leg Break LOCA Experiment on LSTF" (Andrej Prošek).

Within the framework of the programming part of the meeting discussion was about the need for further development of computer programs and tools for the simulation of nuclear installations and proposals of contributions in kind, which are required for all participants in the CAMP (for Slovenia one contribution, the contribution for 2017 was already proposed at the previous meeting ). The new edition of the TRACE program is scheduled for summer 2017.

This year's spring CAMP meeting, which took place from 22. - 24. 5. 2017 in Warsaw, Poland, was organized by the Polish Agency for Atomic Energy in cooperation with the U.S. NRC. The meeting was attended by approximately 60 representatives from 16 countries, including 20 from the host country. From JSI’s Reactor Engineering Division Dr. Andrej Prošek attended the meeting.

OECD NEST Kick-off Workshop, Paris, France, 11.-12.5.2017

Within the framework of the OECD (Organization for Economic Cooperation and Development) operates NEA (Nuclear Energy Agency), which, inter alia, through various projects in the field of nuclear energy enables and encourages cooperation between research organizations of member states.

NEA proposes to establish a framework NEST (Nuclear Education, Skills and Training), part of which would include projects that would aim to educate new generations of professionals in the field of nuclear energy by the interconnection of research organizations. In the context of project, (mostly) doctoral students from research organizations would spent a certain time in other organizations also involved in the project. Therefore, membership in the NEST would allow and facilitate research organizations the exchange of young professionals. NEST is designed primarily long-term and is expected to become operational in the second half of 2017 or first half of 2018. Annual contributions of membership in NEST should be of the order of 40,000 EUR, but then certain part of the cost of alliances would be also financed from these funds.

At the initial meeting, the representatives of Belgium, Canada, Czech Republic, France, Germany, Hungary, Italy, Japan, South Korea, Poland, Russian Federation, Slovakia, Slovenia, Spain, Turkey, the United Kingdom and the United States expressed the interest of the membership in NEST. Most of the representatives express interest, however we have to previously obtain the opinion of governments and stakeholders in the field of nuclear energy in our own countries. The final decision must be notified within 60 days. During this period, the JSI will inquired about the possibilities of obtaining funds for the membership in NEST among the Slovenian stakeholders.

The initial meeting of the frame NEST, hosted by OECD / NEA between 11th and 12th of May 2017 in Paris (France), was attended by Prof. Leon Cizelj as President of ENEN (European Nuclear Education Network) and Dr. Ivo Kljenak as a representative of the JSI and Slovenia.

17th EUROfusion General Assembly Meeting

17th EUROfusion General Assembly Meeting, Cadarache, France, 10.-12.04.2017

European fusion research under Horizon 2020 combines target-oriented 5-year (2014-2018) EUROFusion program, which takes place under the auspices of the EURATOM Treaty. The basic objectives of the EU fusion research are related to support of the ITER fusion reactor and in the long-term, the realization of demonstration fusion power plant. The EUROFusion program is performed by a consortium of fusion research units of the EU countries (in total 29), where the Jozef Stefan Institute acts as a Slovenian coordinator and partner in the consortium. The leading partner in a consortium is the Institute of Plasma Physics (IPP), Germany. Decision-making body of the consortium is General Assembly.

In the days between 10.04. and 12.04.2017 the 17th General Assembly EUROfusion Meeting was held in Cadarache, France, organized by CEA (Le Commissariat à l’énergie atomique et aux énergies alternatives). At the meeting we discussed and approved the revised EUROfusion program budget for the year 2017, which this time includes funds for the implementation of the experimental campaigns on smaller tokamaks, funding for education and training programs and resources for the "Enabling Research" projects. The General Meeting approved the first phase of the PEX (Plasma exhaust) program. We have acquainted the contents of the second phase of the PEX program, at which point a controversial debate was developed on the classification of the Italian proposal for a new fusion device for testing alternative divertor configuration DTT (Divertor Test Tokamak). The second day of the meeting was devoted to a discussion with the director of ITER, Mr. Bigot. He presented to the Assembly the current status of the construction of the experimental reactor. The discussion was intended primarily for more effective cooperation between EUROfusion program and the ITER organization. For this purpose, a new proposal for the coordination and integration between EUROfusion activities directly related to the ITER was presented. Members of the GA visited the construction site of ITER and production facility of the poloidal superconducting magnets and cryostat assembly components, where the production of technological components is already underway. EUROfusion General Assembly Meeting was attended by Dr. Boštjan Končar from the Reactor Engineering Division, JSI.

OECD-NEA PIRT for SFP in LOCA

OECD-NEA PIRT for SFP in LOCA, Pariz (Francija), 03-05.04.2017 

Nuclear Energy Agency (NEA), which operates within the Organization for Economic Cooperation and Development (OECD) has currently 29 member countries and was established on 1 February 1958. The main mission of the agency is to assist its members in the conservation and development of the environment, which will offer the scientific, technological and legal basis for the safe, environmentally friendly and economically justified use of nuclear energy for peaceful purposes through international cooperation. Another important role of the agency is to create a credible assessments and responses to key questions about nuclear energy and to provide support to individual member governments in the decisions that are related to nuclear energy policy.

On the Fukushima events, the Committee on the Safety of Nuclear Installations (CSNI), which operates within the NEA, responded with a variety of activities in support of the adoption of the new decisions. The result of one of these activities was the preparation of the report "Status Report on Spent Fuel Pools Under Loss-of-Cooling and Loss-of-Coolant Accident Conditions," which summarizes current knowledge about such accidents. The report recommends implementing a methodology Phenomena Identification and Ranking Table (PIRT) in order to systematically identify the events, which are of great importance to nuclear safety and on which the available knowledge is inadequate.  It is a methodology that in the first phase identifies key events related to a particular topic, so SFP, and in the second phase, based on the vote of the group of experts of the workgroup members, identifies the importance of individual phenomena and evaluates the reliability of the voting results, thus enabling the creation of priorities for further consideration. JSI has joined the workgroup only in the second phase of the report preparation.

The first day of the meeting, the discussion was about the second PIRT report draft, which already represents a solid approximation of the final report. On the second day, we focused on the selection and evaluation of identified phenomena, which for the case of an incident with a loss of cooling and / or loss of coolant require priority attention. On the third day, we focused on open issues, conclusions and recommendations and we prepared a time plan for further work.

The fourth final workgroup meeting, which was organized by the IRSN on 3-5.4.2017 at the OECD conference center in Paris, was attended by Reactor Engineering division associate dr. Marko Matkovič. At the meeting there were 23 registered and nominated representatives of various organizations.

 

Meeting of European MELCOR users

Meeting of European MELCOR users, Madrid, Spain, 6-7.4.2017

After the severe accident in the Fukushima nuclear plant, standards for nuclear safety have tightened. Thus, the analysis of severe accidents are becoming an integral part of the safety reports. For independent verification of analyses of severe accidents MELCOR computer program is uses in the world primarily. It can be obtained by participating in the U.S. NRC international research program CSARP (Severe Accident Research Cooperative Program). Slovenia is a member of the program CSARP since the end of 2015 and  has already cooperate in the years 1998-2005. As part of the CSARP research program place, a joint meeting CSARP / MCAP (MELCOR Code Assessment Program) is in the US every year. Due to the prevalence of the program, a regional annual meeting of the European (EMUGE - European MELCOR User Group) and Asian (AMUG - Asian MELCOR user Group) MELCOR users has been held for several years. The first annual meeting EMUGE was organized in 2008 at the Paul Scherrer Institut in Switzerland.

EMUGE ninth meeting was held at the CIEMAT in Madrid between the 6th and 7th April 2017. It was attended by 42 users and developers of the MELCOR from 14 European countries and the USA. The meeting was divided into five sections, in which developers and users of the program presented their activities:

  • Introductory presentations,
  • Development and application of models,
  • Experiments and application for the gas-cooled fast reactor,
  • Application for the light-water reactors
  • Fusion applications.

 Participants also viewed the PECA experimental device dedicated to aerosols behaviour. The meeting was attended by Dr. Matjaž Leskovar from Reactor Engineering Division from the Jožef Stefan Institute, who is the Slovenian coordinator for cooperation in the framework of the CSARP research program.

ENEN Management Board and General Assembly Meeting

ENEN Management Board and General Assembly Meeting, Manchester, United Kingdom, 28.2.-03.04.2017

More than 60 members of the ENEN Association represents the majority of European universities and research institutes providing education in the field of safe use of nuclear energy. In more than a decade of existence, the association succeeded developing standard curricula, mutual recognition of ECTS points, relatively extensive exchange of students and teachers and a number of pilot schemes for training.

Management Board (2.3.) focused primarily on preparations for the association’s electoral assembly, which followed 3.3. The General Assembly accepted the report for year 2016 and plans for 2017. Again were elected the president - prof. dr. Leon Cizelj – and vice-president - prof. dr. Filip Tuomisto – with one-year term.

Before the Management Board meeting with the help of representatives of the IAEA work meeting with the presidents of regional networks for nuclear education was carried out: dr. Youngmi Nam (ANENT), prof. Aucyone da Silva (LANENT), prof. Andrey Kosilov (STAR-NET), and Professor. Kenji Takeshita (JUNET-GNHRD). After the General Assembly a work meeting of the European project EUJEP-2 was carried out.

Management Board meeting, General Assembly and other supporting events that took place in the University of Manchester, UK, were attended by prof. Leon Cizelj, head of the Reactor Engineering Division.

NUGENIA Forum and General Assembly

NUGENIA Forum and General Assembly, Amsterdam, 27.-29.3.2017

NUGENIA (Nuclear Generation II & III Association) is an organization that brings together (mostly) European stakeholders in the field of nuclear energy: research and technical-safety organizations and managers and producers of nuclear power plants. NUGENIA was officially founded in 2011. The main purpose of the organization should be directing and coordinating research in the field of nuclear energy. System is that smaller groups are proposing the project on the NUGENIA website with a brief overview of the project itself. Other NUGENIA members then have the opportunity to express an interest in participating. In addition, project proposals, which will be confirmed as eligible by NUGENIA, should have a greater chance of a successful application to the calls of the European Commission.

The General Assembly has formally closed associations business in 2016 and outlined the main points of the program in 2017. They have also elected new members of the Executive Committee.

The Forum, which was attended by about 150 people this year, presented to the participants in three parallel sessions the already done work in the funded projects by the NUGENIA Association portfolio and, of course, preparations for new projects.

General Assembly and NUGENIA Forum was attended by Prof. Dr. Leon Cizelj, head of the Reactor Engineering Division.

EUROSAFE Conference Program Committee, meeting with Mr. William Magwodom, Director of the OECD/NEA

EUROSAFE Conference Program Committee, meeting with Mr. William Magwodom, Director of the OECD / NEA

Paris, France, 31.1.-2.2.2017

The EUROSAFE FORUM conference is organized each year by the three major European organizations for scientific and technical support to the nuclear regulatory authorities: French IRSN, German GRS and Belgian BelV. The conference is scheduled to take place on 6 and 7.11. in Paris.

Program Committee meeting was devoted to defining the basic program of the conference and some innovations in the form and content of the conference.

Attendance at the meeting of the EUROSAFE Conference Program Committee was also an oportunity for Prof.Dr. Leon Cizelj as the President of the ENEN Association for a conversation with Mr. William Magwoodom, Director of the OECD / NEA. Prof. dr. Leon Cizelj also met Mr. Philippe Correa, Director of the Institut national des sciences et techniques nucléaires (INSTN), which operates within the CEA.

The meeting of the EUROSAFE FORUM 2017 Conference Program Committee, which was organized by the French member of ETSON, IRSN, was attended by Prof.Dr. Leon Cizelj, head of the Reactor Engineering Division.

Safety culture NUSHARE workshop

SAFETY CULTURE NUSHARE WORSHOP, Madrid, Spain, 24-17.1.2017

NUSHARE project is aimed at raising awareness and educating decision-makers about nuclear safety culture. It is designed for three categories of decision-makers: politicians and opinion leaders, regulatory authorities and technical support organizations and operators and power plants suppliers.

This workshop was intended for experts of nuclear regulatory body and authorized experts for radiation and nuclear safety. The most important content was support for the interpretation and understanding of nuclear safety culture to the general public and simulation of management of nuclear power plants. In the management of nuclear power plants simulations the workshop participants formed Management Boards with few members and then with decisions about carried and non-carried out investments and reactions to minor defects or irregularities in our facilities verified what consequences could our management and decision-making strategies have after several years of operation.

The workshop, organized by the ENEN Association on the premises of the Consejo de Seguridad Nuclear in Madrid, was attended by prof. Leon Cizelj, head of the Reactor Engineering Division in the role of President of ENEN.

MITHYGENE-ETSON hydrogen deflagration benchmark kickoff meeting

MITHYGENE-ETSON hydrogen deflagration benchmark kickoff meeting, Orleans, France, 21/03/2017

Within the French project MITHYGENE active from 2013, with ETSON members joined, an experimental device ENACCEF2 was designed and built that offers unique opportunities to study the acceleration, deceleration and choking of flames. Some hydrogen combustion experiments carried out within the project will be used as combustion benchmark for a comparative study of computational codes used in safety analyses of hydrogen combustion in the containments of nuclear power plants. ETSON is the European Association of authorized experts for nuclear (and radiation) safety. Within the association several working groups and committees are operating.

At the initial meeting the cooperating partners dealt with the details of planned experiments, one of which will be open and the results of two experiments will be available after delivered results of simulations, and experimental devices ENACCEF2 itself, which was also visited. Participating partners presented computational codes, which they intend to use. The timeframes of a comparative study were also presented, in which the calculations of open experiments with the before known experimental results will be followed by the blind tests calculations without experimental results. Next meeting, at which calculations and comparison of the results of the first phase will be presented, is scheduled for the end of May or beginning of June 2017.

Kickoff meeting for MITHYGENE-ETSON combustion benchmark, which was in collaboration with the IRSN hosted at ICARE from the CNRS, took place in Orleans, on the March 21st 2017. Tadej Holler from the "Jožef Stefan" Institute’s Reactor Engineering Division attended the meeting.

4th NUGENIA-SARNET TA2 review meetings on in- and ex-vessel corium behaviour

4th NUGENIA-SARNET TA2 review meetings on in- and ex-vessel corium behaviour, Puerto de la Cruz, Spain, 2.3.-10.3.2017

NUGENIA (NUclear GENeration II & III Association) is an association dedicated to the research and development of nuclear fission technologies, with a focus on Generation II and III nuclear plants. It gathers stakeholders from industry, research, safety organisations and academia, committed to develop joint R&D projects in the field. NUGENIA builds on the past success of European Commission-supported networks SARNET, NULIFE and SNETP. The work of NUGENIA is organised in seven technical areas, within a general scope defined by the Strategic Research Agenda published by SNETP, the European stakeholder forum for nuclear technology.

The NUGENIA Review Meeting was for technical area 2 “Severe Accidents” and was devoted to sub-areas TA2.1 “In-vessel corium and debris coolability” and TA2.2 “Ex-vessel corium interactions and coolability”. At the meeting the partners presented the status of current research activities and future plans, and proposals for future projects were presented and discussed. A special session was devoted to the 7.FP EU IVMR (In-Vessel Melt Retention Severe Accident Management Strategy for Existing and Future NPPs) project.

The review meeting was jointly organized by KIT from Germany and CEA from France in Puerto de la Cruz in Spain from 2.3.-10.3.2017. It was attended by Dr. Matjaž Leskovar from the Reactor Engineering Division of the Jožef Stefan Institute (JSI-R4). He had a presentation entitled:

Leskovar, T. Skobe: “Analysis of Oxidation Influence in Ex-Vessel Steam Explosion with Metal Corium + Current status of JSI FCI R&D and FCI topics that JSI considers important in future”.

5. work meeting of SESASME project, NRG, Petten, Netherlands

SESAME project is a project in the context of the European project Horizon 2020. The three main objectives of the project are: development and validation of advanced numerical approaches for the design and safety evaluation of advanced reactors; achievement of a new or extended validation base by creation of new reference data; and establishment of best practice guidelines, verification and validation methodologies, and uncertainty quantification methods. Project results are expected to be used in the design and improvement of fourth generation reactors. Explicitly exposed were the reactor ASTRID, MYRRHA, ALFRED and SEALER. The project is divided into 7 work packages. 23 organizations from the European Union and 2 organizations from the United States are cooperating.

In the first part of the meeting, organizations preparing experimental facilities (under any of the work package) presented the progress in production and measurements. The second part of the meeting began the following day. Participants were divided into two groups for the work packages 1 and 2 and for the work packages 3 and 5. In the third part of the meeting, which began on the third day, the participants met again together for the packages 6 and 7. The first one is dedicated for the learning materials for the simulation of fluid mechanics preparation, the other for the project administration. Later the Project Management Board was held, followed by General Assembly of the project. On the latter, payments, certain changes regarding the financing of certain partners and changes that allow cooperation with American partners have been agreed.

The meeting was held from 6. to 8. March in the premises of the NRG organization in Petten, Netherlands. The meeting as a representative of the Reactor Engineering Division attended Jure Oder. At a meeting of the work package 1: Fluctuation and vibration he presented the results achieved in the last six months.

Workgroup WP5 Soteria project meeting

Workgroup WP5 Soteria project meeting, EDF Lab Les Renardières, France, March 6. - 8. 2017

SOTERIA project (»Safe long term operation of light water reactors based on improved understanding of radiation effects in nuclear structural materials«) is a four-year European project, which began on September 1st 2015 under the auspices of the EURATOM program Horizon 2020. The main objective of the project is to improve understanding of the aging phenomena of steels, which are used for the pressurized water reactor vessels and its internal components. With the research in the field of steel aging regulators and operators will have key information required for safe and long-term operation of the existing European nuclear power plants. The project involves a number of European research centres (including JSI) as well as industrial partners. The project coordinator is CEA, France.

At the Workgroup WP5 meeting, which deals with the modelling and simulations, the results of the work in the first 18 months of the project were presented. JSI is involved in:

  • development of a crystal plasticity model for mechanical description of stainless steels irradiated with neutrons and,
  • modelling of intergranular boundaries, to simulate the formation of early damage or cracks.

At the meeting the JSI, together with IRSN and CNRS presented a comparison of the two methods - the finite element method and the Fast Fourier Transform method - in the case of tensile stress of irradiated polycrystalline aggregate. The title of the presentation was: »Polycrystalline simulations of irradiated stainless steel: FEM versus FFT«.

The meeting in Les Renardierès was organized by EDF from March 6. - 8. 2017 and was attended by Dr. Samir El Shawish from the Institute "Jozef Stefan" Reactor Engineering Division.

6th International Symposium and Seminar on Global HRD for 3S

6th International Symposium and Seminar on Global Human Resource Development for Safety, Security and Safeguards, Tokyo Institute of Technology, Tokyo, Japan

The 6th International Symposium and Seminar on Global Human Resource Development for Nuclear Safety, Security and Safeguards is a traditional event that was held by Tokyo Institute of Technology in the framework of Academy for Global Nuclear Safety and Security Agent project with cooperation of International Atomic Energy Agency (IAEA), World Nuclear University (WNU), European Nuclear Education Network (ENEN), University A&M Texas, Japan Atomic Energy Agency (JAEA) and Institute of Nuclear Materials Management (INMM) Japan. This event took place from February 20th to March 3. 2017 on the Tokyo Institute of Technology in Tokyo, Japan. Academy for Global Nuclear Safety and Security Agent Management Board started with the seminar on 15. 2. 2017.

The event is intended primarily for networking of international students from Academy for Global Nuclear Safety and Security Agent with students and professors from recognized universities in the world as well as Japanese of national and international nuclear organizations decision-makers.

International Symposium and Seminar was divided into three parts. In the first public part, which took place from February 20th to 22nd 2017 plenary session were conducted with lectures of representatives of different international and Japanese institutions, which work in the field of the nuclear energy. The second part of the seminar included a visit to Hiroshima University, Radiation Effects Research Foundation (RERF), Hiroshima Peace Memorial Museum and MONJU Fast Breeder reactor. From 28.2. to 03.03.2017 for the public closed part of the seminar with lectures of representatives of Japanese corporations and professors from the Tokyo Institute of Technology.

Lectures topic were reports of the accident at Fukushima Daiichi, the future of nuclear energy, education in the field of nuclear energy, severe accidents in nuclear power plants, the safety assessment and decision-making in the event of accidents and safety improvements in future nuclear power plants.

The symposium was attended by 27 students and young researchers from different countries. From the Jožef Stefan Institute the seminar was attended by Rok Krpan from the Reactor Engineering Division (R4). First part of the seminar was attended also by prof. Leon Cizelj, head of the Reactor Engineering Division in the role of President of ENEN, which during the days before the seminar participated in the Management Board of "Academy for Global Nuclear Safety and Security Agent".

ASAMPSA-Technical Meeting

ASAMPSA_E (Advanced Safety Assessment : Extended PSA) is a 3 years European project within EC 7th framework programme (FP7) dedicated to the assessment of the consequences of combination of extreme external events on the safety of Nuclear Power Plants.

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. The project ASAMPSA_E aims at identifying good practices for the identification of such events with the help of Level 1 and Level 2 PSA and for the definition of appropriate criteria for decision making in the European context. The Jožef Stefan Institute is contributing to five out of six work packages within the project.

The ASAMPSA_E Technical Meeting was held in Vienna during the 08-12 September 2014, and dr. Andrija Volkanovski attended it. The meeting was hosted by the University of Vienna. The purpose of the meeting was to specify the content of deliverables and the distribution of work in WP21 (Initiating events modelling), WP22 (Introduction of hazards in Level 1 PSA and WP3 (General issues regarding extended PSA). The representatives of project beneficiaries were present on the meeting. Participants from JANSI(Japan) and NRC(USA) were present on the meeting and made presentations on developments considering introduction of external hazards in PSA.

MULTIMETAL 6th Executive Meeting

MULTIMETAL (Structural performance of multi-metal component) is a 3 years European project within EC 7th framework programme (FP7) dedicated to the integrity assessment of dissimilar metal welds, i.e., welds that join components made out of different kind of steels in nuclear power plants primary systems.

The project includes an important mechanical and fracture testing campaign of specimens containing dissimilar metal welds with the aim to characterize properties’ gradients along the weld. Three different mock-ups, of characteristic dissimilar welds in European power plants, have been fabricated but testing of the second mock-up specimens has just started. This mock-up was delivered with 10 months delay affecting a considerable number of related project deliverables. The project is currently in the 29th month. Project partners wish to ask for a 1 year extension of the project and important efforts are currently dedicated to catch up with the project   initial schedule. Numerical simulations of homogenous (one material) fracture specimens were successfully performed. Now, new matrices of 2D and 3D simulations of heterogeneous (weld) specimens of mock-ups 1 and 3 have been set up and a new Round Robin exercise will compare results among partners and numerical codes used to perform the finite element calculations. IJS-R4 is   involved in four different work packages within MULTIMETAL project, mainly related to numerical simulations, and is leading the one dealing with training, mobility and knowledge management.

The 6th Executive Committee Meeting of project MULTMETAL was held in Studsvik, Sweden during June 12th and 13th,2014 and Oriol Costa attended it. The host institution was Studsvik (STU) and participants came from AREVA GmbH (Germany), AREVA NP SAS (France), VTT (Finland), EDF-Energy (UK), EDF-R&D (France), JRC (The Nederland), BZF (Hungary), CEA (France) and IJS (Slovenia).

 

1st NUGENIA Review Meeting TA2.1 and TA2.2

NUGENIA (NUclear GENeration II & III Association) is an association dedicated to the research and development of nuclear fission technologies, with a focus on Generation II and III nuclear plants. It gathers stakeholders from industry, research, safety organisations and academia, committed to develop joint R&D projects in the field. NUGENIA builds on the past success of European Commission-supported networks SARNET, NULIFE and SNETP. The work of NUGENIA is organised in seven technical areas, within a general scope defined by the Strategic Research Agenda published by SNETP, the European stakeholder forum for nuclear technology.

The NUGENIA Review Meeting was for technical area 2 “Severe Accidents” and was devoted to sub-areas TA2.1 “In-vessel corium and debris coolability” and TA2.2 “Ex-vessel corium interactions and coolability”. At the meeting the partners presented the status of current research activities and future plans, and proposals for NUGENIA and HORIZON 2020 were presented and discussed.

The review meeting was jointly organized by KIT from Germany and CEA from France in Santa Cruz de Tenerife in Spain from 17.-21.2.2014. It was attended by Dr. Matjaž Leskovar from the Reactor Engineering Division of the Jožef Stefan Institute (R4 JSI). He presented the status of fuel-coolant interaction (FCI) activities at R4 JSI and gave a technical presentation entitled: M. Leskovar, V. Centrih, “Influence of Zirconium Content on Steam Explosion Energetics – Comparison of SERENA and ZREX experiments”. The partners agreed to prepare two FCI related project proposals, one for NUGENIA+ and one for HORIZON 2020, with R4 JSI participating.    

Emeritus scientists of Jožef Stefan Institute

On June 21st 2013 Jožef Stefan Institute conferred the title Emeritus Scientist of the Jožef Stefan Institute to three former employees of the Institute.

The titles were conferred for important merits in the field of research and education and for the transfer of knowledge to younger generations of researchers. Following the conclusions of the Scientific Council of the Institute this award was presented to the founder and long-time head of Reactor Engineering Division prof. dr. Borut Mavko.

The award was also conferred to prof. dr. Boris Žemva and prof. dr. Raša Pirc.

IAEA Technical Meeting on Best Estimate plus Uncertainty (BEPU) Methods in Safety Analysis

The International Atomic Energy Agency (IAEA) has been organizing a series of technical meetings on the topic of Best Estimate approach in licensing-type safety analysis. The main purpose of these meetings is to provide an international forum for exchanging results and discussing the current issues related to the use of Best Estimate plus Uncertainty (BEPU) approach in safety analysis. More specifically, the focus is set on deterministic safety analysis using BEPU and on probabilistic safety analysis.

The latest IAEA Technical Meeting on BEPU Methods in Safety Analysis was organized by the IAEA together with the San Piero a Grado Nuclear Research Group (GRNSPG). The participants that attended the meeting represented 18 countries, thus providing a good opportunity to exchange experience and compare national practices related to accident analysis. The agenda of the meeting consisted of national presentations, discussions, and working group sessions focusing on the key issues of applying the BEPU methodology for plant licensing. During this technical meeting, a visit was organized to the GRNSPG headquarters, where the Nuclear Power Plant Technology Knowledge Management System (NUTEMA) facility was presented and a short demonstration was given. The goal of the NUTEMA project is to develop an integrated system that is capable of managing the knowledge required for nuclear power plant design, licensing, operation and safety.

The technical meeting concluded with a session presenting the working groups recommendations and proposals for future actions regarding the application of BEPU methodology for licensing safety analysis.

The meeting was held in Pisa, Italy, during the period of 10th-14th June, 2013, and was attended by Ovidiu-Adrian Berar.

Stran ureja: Sandi Cimerman

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