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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.

European project ENEN+ accepted

European project ENEN + accepted

Just accepted ENEN+ project titled "Attract, Develop and Retain a new nuclear talents" falls within the portfolio of EURATOM Horizon 2020 projects. The primary purpose of ENEN+ is to contribute to the revival of younger generation interests to careers in the nuclear sector. For this purpose, the following main activities are intended:

  • Attract new talents for the nuclear professions. We will focus on high school students, students of the first cycle Bologna and young professionals from other fields.
  • Develop new attracted talents beyond the boundaries of academic programs. A healthy balance between knowledge, skills and responsibility will be promoted with personal career guidance and financial support for mobility.
  • Retain several new talents in nuclear professions, namely through enhanced mentoring and supported mobility.
  • Include nuclear stakeholders in the European Community and wider. Strategic communication and integration at first in the European Community and then globally, will contribute to the maintenance and development of a stable education and training system, which will satisfy the needs.
  • Maintain a revived interest in nuclear professions by establishing a mobility fund and voluntary accreditation of nuclear education and training.

22 project partners of ENEN+ will focus primarily in the professions and experts in the fields of nuclear engineering and safety, radioactive waste disposal, 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 Institute "Jožef Stefan" and the Faculty of Mathematics and Physics, University of Ljubljana.

Cooperation of all nuclear stakeholders is crucial for the success of the project. Within three years ENEN+ with support from the European Commission for the mobility of students and young professionals will spend more than EUR 1 million. The project will be coordinated by the ENEN Association under the leadership of Prof. Leon Cizelj.

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".

34th Short Courses on Multiphase Flows 2017, ETH, Zürich, Switzerland

34th Short Courses on Multiphase Flows 2017, ETH, Zürich, Switzerland

»Short Courses on Modelling and Computation of Multiphase Flows« or »Short Courses on Multiphase Flows« is a course that cover the field of multiphase flow, heat transfer and phase changes. The main themes of the course are computational methods and models, which are used for calculations and computer simulations.

The course is divided into three parts, consisting altogether 23 lectures. The first part includes lectures, thus intended to explain the physical basis. The second part offers two possible courses from which participants choose one. The first course deals with the phenomenon of multiphase flows of heat transfer in a nuclear reactor, the second course is dedicated to the models and computational methods in multiphase fluid mechanics. In the third part, commercial codes (software package) for the simulation of multiphase flows are presented. The course also gives many examples in multiphase flows from various industries, focusing on the cases of two-phase flows in the nuclear industry.

The course was for the 34th time organized by the Federal Institute of Technology (ETH) in Zürich. It took place from 13 to 17 February. About 50 listeners attended the course, also Janez Kokalj from the JSI.

WPDC (Diagnostic & Control) Final Meeting

WPDC (Diagnostic & Control) Final Meeting, Garching, Germany, 20. 12. 2016

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

At the final meeting for the year 2016 the representatives of partner organizations in the project presented their work results in 2016 in individual areas. JSI participates in a project package WP2 "System engineering and design integration", whereby the system engineering is performed by subcontractor Cosylab d.d., while design integration and related engineering calculations are made by JSI Reactor Engineering Division. At the meeting Cosylab d.d. and JSI separately presented their results and contributions. JSI presented an analysis of the feasibility of the proposed diagnostic for measuring the thermo-electric current on divertor. Also an agreement was made that the specifications of works for the year 2017 will be made in the coming weeks, while the deadline for issuing a draft of the final report for the year 2016 is scheduled for the end of February 2017.

The meeting, which was on December the 20th in Garching organized by a project manager Wolfgang Biel, was attended by dr. Samir El Shawish from the Reactor Engineering Division.

16th EUROFusion GA meeting, Madrid, Spain, 14. -.16. 12. 2016

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 15. 10. and 16.10.2016 the 16th meeting of the General Assembly EUROFUSIONE was held in Madrid, organized by CIEMAT (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas). At the meeting we discussed the content of the program for the year 2017. Within the information on the course of the program EUROFusion was very encouraging report on the successful completion of the last deuterium experiments on JET fusion device. On JET fusion device a record number of successive long pulses with an output of around 20 MW have been achieved. Also the WEST facility in Cadarache, which is now equipped with Wolfram Research divertor, was successfully commissioned in the beginning of December.

The call for 2017 has been very successful for the Josef Stefan Institute - in addition to ongoing projects, we have also acquired three new projects, one in the field of basic research on materials, one experimental project within the framework of PEX (Plasma EXhaust) program and a scholarship for a young researcher in the field of engineering research.

EUROFusion General Assembly meeting was attended by dr. Boštjan Končar from Reactor Engineering Division, JSI.

Conference SET (strategic energy technologies) Plan, Bratislava, Slovakia, 1.12.2016

SET (Strategic Energy Technologies) Plan is the framework in which the European Commission develops and coordinates strategies and plans for the development and strengthening of clean energy technologies. Each year organizes a conference in which participants share experiences and plans.

At the conference, representatives of the European Commission (vice-president Šefčovič and commissioner Moedas) presented the new european plan for clean energy. Representatives of some countries are also immediately comment the plan (minister Žiga, Slovakia, minister Mlade, Czech Republic, and the prime minister Mizzi, Malta). Representatives of member states mainly missed more detailed view of the European Commission on nuclear energy. To be mentioned that among the conference participants from Slovenia only three representatives of research institutes were present, while unfortunately none of the government and industry representatives.

Conference SET Plan 2016, which was under the auspices of the Slovak Presidency of the European Union held in Bratislava, was attended by prof.dr. Leon Cizelj, head of the Reactor Engineering Division, JSI.

A preparatory meeting of the ICONE25 conference, Shanghai, China, 5.-10.12.2016

A preparatory meeting of the ICONE25 conference, Shanghai, China, 5. - 10. 12. 2016

ICONE International Conference (International Conference on Nuclear Engineering) is every year jointly organized by the American (ASME) and Japan (JSME) Association of Mechanical Engineers and the China Nuclear Society (CNS). In the year of 2017 the conference, which traditionally brings together over 800 nuclear experts from around the world, will be held between May 14th and May 18th 2017 in Shanghai, China.

At the meeting was noted the enormous response from the authors who have offered 1,200 papers. Rules for paper reviews were specified and a draft of a protocol part of the conference was made. Particular attention was paid to the invited speakers who will participate in the conference opening ceremony and of course to panelists who will participate in the scheduled 10 panels.

Visit to Shanghai was exploited for a detailed view of the construction site of nuclear power plants in Sanmen, where Westinghouse is building two AP1000 reactors. In first nuclear power plant they are already carrying out hot tests. It is planned that it will start trial operation in less than one year. Plans are to build a total of 6 AP 1000 units on this site. The rest of the time spent in China was devoted to meetings and strategic considerations of the Executive Committee Section of Nuclear Energy Division at ASME.

The meeting, which was held in Shanghai by SNERDI (Shanghai Nuclear Engineering Reseacrh and Design Institute), was attended by prof.dr. Leon Cizelj, head of the Reactor Engineering Division.

The ELINDER consortium meeting, Bratislava, Slovakia, 2.12.2016

The consortium ELINDER under the auspices of the Joint Research Centre (JRC) of the European Commission have joined partners who plan in the coming years to strengthen activities in the field of education in the training for the decommissioning of nuclear facilities. The consortium Elinder proposed the European Commission the project as a part of the Horizon 2020, which is still in the evaluation.

At the meeting, members of the consortium presented their current and planned activities and signed a memorandum on cooperation. The consortium intends to strengthen its own participation irrespective of whether the European Commission will support research funds.

The meeting, organized by the Slovak University of Technology in Bratislava, was attended by prof.dr. Leon Cizelj, head of the Reactor Engineering Division, JSI, in the role of Chairman of the ENEN.

On this occasion, prof. dr. Leon Cizelj and the general director of the JRC Vladimir Šucho signed an agreement on cooperation between the JRC and ENEN association.

The General Assembly SNETP, Bratislava, Slovakia

The General Assembly SNETP, Bratislava, Slovakia, 29. 11. 2016

European Sustainable Nuclear Energy Technology Platform (SNETP) brings together more than 100 nuclear stakeholders from all European nuclear countries. One of the key objectives of the platform is the preparation of strategic development documents, particularly for research and development in the field of reactor of 2nd and 3rd generation, 4th generation and cogeneration of heat and electricity with nuclear reactors. European Commission in the framework of research programs co-finances projects relating to strategic development priorities, which were prepared and correlated by the stakeholder platforms.

At the General Assembly 2016 the talk was mainly on determining the strategic orientation of the platform in the coming years and to determine the membership fees for the year 2017. Among the key strategic directions is to strengthen SNETP position as the interlocutor with the European Commission in the discussion and decision making on the strategic development priorities of the European Union's energy.

General Assembly, which was held in Bratislava as a side event of the SET Plan (Strategic Energy Technology Plan) conference, was attended by prof.dr. Leon Cizelj, head of the Reactor Engineering Division.

THAI TH-27 workshop, Eschborn, Germany

THAI experimental facility, which is located in Eschborn (Germany), is essentially a container of cylindrical shape with the volume of 60 m3, the height of 9.2 m and a diameter of 3.2 m. Owner and operator of the device is the Becker Technologies GmbH company. The device is in use from the early 2000s to carry out experiments in the field of phenomena in the containment of a nuclear power plant during severe accidents: distribution and combustion of hydrogen, operation of a autocatalytic hydrogen and behaviour of fission products. In the Reactor Engineering Division they had so far, within the International standard problem OECD No. 47 (2002-2007), simulated the mixing of the atmosphere in the containment and, in the context of the European project CESAM (2013-2017) and our own independent research, the experiments of hydrogen combustion. Most experiments in the THAI facility, which belong to the very top of the research in this area, takes place within the OECD projects in which JSI is unable to participate due to the lack of funds for participation financing.

In 2014, the THAI facility has been expanded with parallel cylindrical container with similar height and with the volume of 17.5 m3. Both containers are interconnected with two horizontal pipelines, one at the bottom and one at the upper part of the two vessels. To test the updated facility (now called THAI+) the TH-27 experiment was conducted. During the experiment the circulation of the atmosphere was generated at first by the injection of the steam into the main vessel and subsequently by injecting the helium into secondary smaller container. The objective of the experiment was to observe how the inhomogeneous atmosphere (in terms of the composition) within the entire experimental facility will evolve. The entire experiment lasted 120 hours.

Even before the experiment the comparative calculation ( "benchmark") was initiated, the purpose of which was the simulation of the first 60 hours of an experiment with computer applications. The calculation was opened as for the Computational Fluid Dynamics programs as for the system programs based on zero-dimensional description of the atmosphere in the container. Potential participants were given specifications, in which the intended experiment was described together with the planned initial and boundary conditions for the realization of the "double-blind" simulations. After submitting the required results, participants received the actual initial and boundary conditions of the experiment (which was at that time already conducted), but not the results of the experiment itself. Newly received data was used to carry out "blind" simulations. The contributions of all participants were united in a single report which contains also the experimental results. JSI has attended the comparative calculation with the ASTEC system software to simulate severe accidents.

For the conclusion of the comparative calculation, workshop was organized at which participants could present their experiences and eventual "open" simulations carried out after receiving the experimental results. Workshop THAI-27, which was organized by the owner and manager of the THAI+ experimental facility Becker Technologies GmbH company in Eschborn (Germany) and was held on 24.11.2016, was attended by dr. Ivo Kljenak from JSI Reactor Engineering Division who presented the contribution: »From lumped-parameter simulations of THAI ISP-47 to lumped-parameter simulations of THAI TH-27: what has been achieved in 11 years ?«

EUROSAFE 2016 conference with ETSON association parallel meetings, Munich and Garching

On the 7th and 8th of November 2016 a EUROSAFE 2016 conference took place in Munich in Germany. The purpose of the EUROSAFE initiative is to harmonize research and technical activities in the field of nuclear safety. JSI is one of the partners of the EUROSAFE. Leading partners are Bel V ​​(Belgium), GRS (Germany) and IRSN (France). The conference was attended by around 300 participants. In the first plenary session of the conference the focus was on the potential dangers in nuclear power plants, IT security, security research in civil aviation and presentation of authorized experts in the field of nuclear safety. One of the authorized experts is JSI, which was presented by Tanja Klopčič.

The main topics in the second part of the conference were nuclear safety and security, the radioactive materials management and radiation safety. In this part the prof. dr. Leon Cizelj chaired the seminar which was devoted to research in the field of nuclear safety. Dr. Mitja Ursic presented the contribution ”M. Ursic, M. Leskovar, R. Meignen, S. Picchi, J.-A. Zambaux, Fuel coolant interaction modelling and sodium cooled fast reactors”.

On the7th and 9th of November 2016 the ETSON association organized a number of meetings in Munich and Garching. ETSON association was founded with the aim of professional integration of authorized experts for nuclear and radiation safety, bringing together experts from the member states of the European Community, Japan, Russia and Ukraine. Prof. dr. Leon Cizelj attended the board meeting and general assembly, dr. Mitja Uršič attended the meetings of the technical committee and research groups. At the meetings an overview of the functioning of the association and its committees and groups in 2016 was given and the work plan for the first half of 2017 was outlined.

European Atomic Energy Society Working Group Meeting, Zaandam (Netherland)

European Atomic Energy Society (EAES) is an organization that was founded in 1954 and unites European research organizations in the field of nuclear energy. The most important function of EAES today is the exchange of information on trends of research in the field of nuclear energy in organizations’ home countries. EAES consisting of the Council (member from the JSI is Leon Cizelj) and Working group (member from the JSI is Ivo Kljenak). The Working group has each year, usually in November or December, a separate two-day meeting.

First day of the meeting of the Working group mainly next combined meeting of the Council and Working group, which will be held from 3. to 7. 6. 2017 in Ghent (Belgium), was being prepared. At this meeting the following topics will be discussed:

  • evaluation of the programs, capability and knowledge in the nuclear research and development centres in order to preserve the national nuclear competences,
  • progress in setting up small modular reactors,
  • safety of nuclear research centres.

The second day of the meeting we visited the complex of hot cells in the Nuclear Research and Consultancy Group (NRG) in Petten. At the end of the meeting we discussed a theme of promoting international collaboration between research organizations, which should be more intense. The task force, which was appointed at combined meeting in June 2016 in Warsaw (Poland) was confirmed and will prepare position paper which will be submitted to the members of the EAES till the next combined meeting.

The for the Atomic Energy Society Working group, held in Zaandam (Netherlands) on 17. and 18. 11. 2016 was organized by the Dutch Nuclear Research and Consultancy Group (NRG). It was attended by Dr. Ivo Kljenak from Jozef Stefan Institute, Reactor Engineering Division.

Workshop on research infrastructures in support of nuclear energy in the United Arab Emirates

Nuclear program in the United Arab Emirates (UAE) began in 2009 with the decision on the construction of 4 APR 1400 Korean reactors at the Barak site. The first of the reactors is expected to become operational in the first half of 2017.

Urgent national infrastructure for nuclear safety in the UAE was set up with the help of the Korean organizations and using foreign labor, which is common in the UAE in virtually all industries. Nuclear regulatory body FANR has today more than 200 employees, nuclear personnel is being trained by three universities (Khalifa, Abu Dhabi Politecnic and Sharjah), ENEC takes care for investments and later on for the operation of power plants.

Only nuclear research institute is missing. Decision of principle to the establishment has been accepted and is currently under discussion on the optimal organization of the Institute. The purpose of the workshop was to contribute to these discussions.

The meeting, which was organised in Abu Dhabi by the administrative authority FANR with the support of the IAEA, was attended by Prof. Leon Cizelj, head of the Reactor Engineering.

OECD-NEA for SFP and LOCA

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 first PIRT report draft was discussed and a number of suggestions for needed changes were exposed. Written amendments and revisions are expected until the end of November. The second day the evaluation of the impact of selected events on the safety of nuclear fuel pools was discussed about. The focus was on the voted importance of a particular phenomenon and reliability of the voting result.

To the third workgroup meeting, which was held on 8 and 9 November 2016 at the headquarters of the NEA in Paris organized by IRSN, were registered and nominated 23 representatives of various organizations. Attendee from JSI was Reactor Engineering division associate dr. Marko Matkovič.

Fall 2016 CAMP Meeting

CAMP (Code Applications and Maintenance Program) is the largest research program conducted under the auspices of the U.S. Nuclear Regulatory Commission (NRC) since 1993. In the context of the CAMP research program is development and change of experience on system codes RELAP5 and TRACE, a neutron program PARCS, and graphical interface SNAP. In the CAMP program, based on an agreement with the U.S. NRC, are currently involved over 40 organizations from 28 countries. Coordinator in Slovenia is the Jožef Stefan Institut (JSI) (also Nuclear Power Plant Krško and the Slovenian Nuclear Safety Administration are cooperating).

CAMP autumn meeting was divided into two parts, a technical and programming one. In the technical part firstly U.S. NRC presented the status of the development of U.S. NRC software TRACE, RELAP5, PARCS and SNAP, which was followed by reports of five member states of CAMP (Canada, Mexico, Slovenia, Sweden and Poland). JSI presented the paper: "Status of CAMP Activities in Canada" by Andrej Prošek.

A total of 12 technical reports, related to the use of computer programs TRACE and PARCS were presented. Within the framework of the programming part of the CAMP meeting we discussed the need for further development of system codes for simulation of nuclear devices and proposals of contributions in kind, which are required for all participants in the CAMP (for Slovenia one contribution per year). For 2017 JSI has proposed a contribution in kind titled "10% Hot Leg Break LOCA Experiment on LSTF calculated by RELAP5 and TRACE", which has been approved by a technical program committee.

This year's autumn meeting of CAMP, which took place on 2-4.11.2016 at the headquarters of the U.S. NRC (Three White Flint North Facility), North Bethesda, Maryland, USA, was organized by the U.S. NRC. The meeting was attended by nearly 50 representatives from 15 countries, of which one remotely and 18 from the host country. From JSI Reactor Engineering Division dr. Andrej Prošek attended the meeting.

Nuclear Material Conference - NuMat 2016

The Nuclear Materials Conference (NuMat) has become since its first realization in 2010 an international forum for the meeting in the field of exploration of nuclear materials for fission and fusion reactors and materials related to the nuclear fuel cycle.
This year's conference Numat 2016 had 8 theme sections from the field of nuclear fuel, structural materials, molten salts and materials related to the management of nuclear waste. Around 500 contributions were presented, almost half in the form of lectures (of which 10 plenary) and slightly more than half in the form of posters.
The Numat Conference 2016, which was organized by CEA and Elsevier in Montpellier, was attended by dr. Samir El Shawish from the Reactor Engineering Division, JSI. In the section Modeling and simulation of structural materials, he presented a poster entitled "Intergranular Stress Distributions and Polycrystalline Aggregates of Irradiated Stainless Steel", which summarizes the results of the article published in the Journal of Nuclear Materials.

Successful Hydrogen Combustion Experiment in the HYMIT Facility (Shanghai Jiao Tong University)

On 17th of October 2016 was at the Shanghai Jiao Tong University (PRC) successfully performed experiment of hydrogen combustion on the basis of specifications made by the JSI (dr. Ivo Kljenak). The experiment was conducted in the frame of Chinese-European project ALISA, where among other things experiments proposed by European researchers are funded in Chinese experimental facilities. Experiment was performed in HYMIT experimental facility, which is a 6 m high cylindrical vessel with the volume of 12 m3. As the initial conditions were similar to conditions in HYKA UFPE experiment  carried out in March 2012 at the Karlsruhe Institute of Technology (Germany) in the facility of volume of 220 m3 (also on the JSI specification basis), the results will contribute to further research of increasing combustion scales from experimental facilities to real-size nuclear power plants.

European Nuclear Conference (ENC) 2016

European Nuclear Conference (ENC) 2016 represents an international event of nuclear experts and the opportunity for meeting and discussion on current challenges in the nuclear industry and science.

Conference ENC 2016 in Poland was attended by approximately 300 participants from all around the world. The extensive program included more than 20 invited lectures and more than 150 presentations on various research areas of research reactors, operating commercial reactors and advanced reactors of the new generations. Under the auspices of European Nuclear Education Network (ENEN) at a conference took place the tenth ENEN PhD Event & Prize event, on which 12 selected young doctors in the field of nuclear profession presented their research work. One of the three ENEN PhD Event & Prize 2016 awards received dr. Oriol Costa Garrido, a Reactor Engineering Division of  “Jožef Stefan” Institute researcher.

ENC 2016 conference was organized between 9 and 13 October 2016 in Warsaw by European Nuclear Society (ENS) in cooperation with the International Atomic Energy Agency (IAEA), American Nuclear Society (ANS), Polish Nuclear Society (PTN) and National Centre for Nuclear Research (NCBJ). The conference was attended by dr. Martin Draksler, dr. Oriol Costa Garrido and dr. Blaž Mikuž, Reactor Engineering Division of Jozef Stefan Institute colleagues.

 

NUTHOS-11; NUclear reactor Thermal-Hydraulics, Operation and Safety

In the days from 9th till 13th October, 2016 in the city of Gyeongju, the ancient capital of Korea, NUTHOS-11 conference was held; Nuclear Reactor Thermal-Hydraulics, Operation and Safety.

Around 500 participants presented about 350 papers in parallel sessions from nuclear thermal hydraulics and severe accidents. In the session dedicated to the research reactors Iztok Tiselj presented a paper by R. Henry, I. Tiselj, M. Matkovič "Coolant temperature measurements and the TRIGA research reactor" and at the same time participated in the conference as head of two sessions, as well in the organization as a member of the program committee and organizer of multidisciplinary contributions in the field of thermal hydraulics even before the conference.

The last day of the conference was concluded with a tour of a nuclear power plant Shin-Kori 3 and 4. The two 1,400 MW power plants are largely the result of the Korean knowledge. The first will start its regular operation in the next few days, the second in the following year.

French RSR ICE (Interaction Corium Eau) Project Seminar

On 11th and 12th October 2016 in Pertuis, France, a seminar of the French RSNR ICE (Interaction corium Eau) project took place. Five-year ICE project, which will be completed in 2018, is part of the program "Tomorrow's Nuclear Energy" of French Agency for Research and Development (ANR). Participants in the project are IRSN, CEA, EDF, AREVA and Université de Lorraine. The seminar was organized by Dr. Renaud Meignen, IRSN, and Dr. Pascal Piluso, CEA, with whom JSI has been engaged for many years in research of fuel-coolant interaction. The seminar was attended by around 30 participants from partner organizations, the University of Stuttgart and JSI.

The purpose of the ICE project is to deepen the understanding of the process of disintegration of the melt mechanisms explosion stage, the impact of material properties on oxidation and solidification, and spatial and temporal distribution of the melt and vapors during the mixing phase. Their findings will be used in the development of a computer program MC3D (IRSN), which is aimed for simulating fuel-coolant interaction. Furthermore, the objective of developing the computer program MC3D is to reduce calculation times and complete the adjustment of the program for 3D simulations. CEA is performing new experiments on devices KROTOS, VITI and ATTILHA, in the scope of the project. Great emphasis is also on the direct numerical simulation of the processes of melt fragmentation (Université de Lorraine) and heat transfer between the mixing and the explosion phase (IRSN).

At the intermediate seminar the results of experimental and numerical studies of fragmentation, oxidation, coagulation and evaporation mechanisms were presented. The simulation results of KROTOS KT1 integral experiment and reactor calculations were also shown. At the invitation of the coordinator of the project, Dr. Renaud Meignena, Dr. Mitja Uršič presented a paper “Fuel-Sodium modeling interaction: status and Comparison with Fuel-Water Interaction” prepared by M. Uršic and M. Leskovar.

Invitation to the seminar is the result of a longstanding cooperation between the Reactor Engineering Department and the IRSN in the development of a computer program MC3D. The seminar was also used to make arrangements for the future cooperation in the modeling of the sodium-melt interaction and the modeling of steam explosions.

EUROfusion General Assembly Meeting

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

The  15th meeting of the General Assembly EUROfusion took place on October 10th and 11th 2016 in Naples, and was organized by the local CREATE (Consorzio di Ricerca per l'Energia, l 'e AUTOMAZIONI only Tecnologie dell' Elettromagnetismo). The General Assembly has re-elected President of the Scientific and Technical Committee - STAC (Scientific Technical Advisory Committee), Dr. William Morris (CCFEA), and elected a new Vice STAC, Dr. Silvana Tostija (ENEA) for a new two-year term. By the year 2017, the EUROfusion project will be joined by the Ukraine. For the inclusion of its researchers in the European fusion program the European Commission (EC) allocated additional € 300,000 per year. The General Assembly unanimously decided that the representative of Ukraine may participate in future meetings of the GA as an observer. Project managers (WPS1 - W7-X experimental campaigns), WPS2 - Helias theory and modeling based on W7-X results) and WPPMI (Power Plant Physics and Engineering Integration) presented the status and progress of the projects at the General Meeting. The main part of the debate at the General Assembly was devoted to the proposed program PEX (Plasma EXhaust), where a special group evaluated 10 proposals, including a JSI proposal.

The EUROfusion General Assembly meeting was attended by Dr. Bostjan Končar from the Reactor Engineering Division, JSI.

Cooperation agreement signed with the Alternative Energies and Atomic Energy Commission (CEA)

On September 27th 2016 the "Jožef Stefan" Institute signed a cooperation agreement with the French Alternative Energies and Atomic Energy Commission (CEA). Representatives of both institutions, the director of the Institute prof. dr. Jadran Lenarčič and the Director Commissioner Daniel Verwaerde have met in Vienna at the jubilee 60th session of the General Conference of International Atomic Energy Agency (IAEA). Slovenian and French delegations agreed that this signing is an important new step towards further strengthening of cooperation between the two countries in the scientific field. The agreement will allow the deepening of knowledge with an even closer cooperation between the Slovenian and French researchers and contribute to strengthening of research and development in the field of nuclear energy.

Visit of Prof Osamu Motojima

On Friday, 24 June 2016 prof. Osamu Motojima visited the Reactor Centre of the Jožef Stefan Institute. He is the former Director-General of the ITER Organisation (2010 – 2015) and is the current President of Future Energy Research Association. The guest was welcomed by the Director of the Jožef Stefan Institute prof. Jadran Lenarcic and by the head of the Slovenian Fusion Association, dr. Bostjan Konca, Reactor Engineering Division, who presented the Institute’s activities in the field of nuclear fusion. Through the discussion with JSI researchers prof. Motojima was acquainted with broad international involvement and main achievements of Slovenian fusion research as well as with the challenges posed by impaired research funding from national public resources. Prof. Motojima also visited an ion beam accelerator, where the plasma-wall interaction studies are being carried out.

Symposium and seminar nuclear human development in TokyoTec

The international symposium and seminar on global nuclear human resource development for safety, security and safeguards (IS3S) is a yearly activity coordinated by the Academy for Global Nuclear Safety and Security Agent of the Tokyo Institute of Technology. The aim of this activity is to enhance the international relations of students and young professionals in the nuclear field (Japanese and foreign). The IS3S is organized within the program of nuclear studies of the Academy which aims at developing nuclear human resources in the fields of safety, security and safeguards (non-proliferation), i.e. to develop global leaders with a scientific background in the nuclear physics and engineering fields which are able to tackle global issues, efficiently communicate with the society as well as with peers in the international nuclear community.

The 5th IS3S was divided in three parts. Four (4) plenary sessions were delivered in 3 days including 27 speeches by renowned nuclear department heads of universities worldwide and international and domestic nuclear agencies. The topics of the plenary sessions included nuclear energy in the future and non-proliferation issues, nuclear education and training and nuclear research and development. In the following 4 days, field education activities were carried out such as radiation level measurements in Tokyo and in the Fukushima prefecture area and visits to the Rokkasho reprocessing plant and the Onagawa nuclear power plant. Back into Tokyo, the seminar continued with 4 lecture sessions delivered in 2 days by 9 prominent professionals in the fields of safeguards systems, nuclear security culture, nuclear terrorism and forensics as well as cyber security of nuclear facilities. The last two days of the seminar were dedicated to student sessions where groups of students and young professionals prepared oral presentations of topics lectured during the symposium and seminar.

Forty-seven (47) students and young professional were invited to the 5th IS3S-5. The students came from the Academy (12), the TokyoTec nuclear engineering program (3), Japanese young professionals from national agencies and electric companies (6) and overseas students and young professionals (26) from USA (8), Malaysia (5), Korea (3), Vietnam (2), Russia (2), Lithuania (2), Austria (1), Romania (1) and Slovenia (1). Oriol Costa was the Slovenian representative in the 5th IS3S, held during February 21st and March 3rd. The European representatives were selected through the European Nuclear Education Network.

ENEN board meeting

More than 60 members of ENEN Association represent 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 its existence the association succeeded in developing standard curricula, mutual recognition of credits, relatively extensive exchange of students and teachers and a number of pilot schemes for training.

The Management Board has focused primarily on preparations for the association’s general election, which will be held in early March, at which replacement of the leadership of the association is anticipated. At the same time, we have reviewed and confirmed the preliminary reports for 2015 and set plans for the year 2016.

Board meeting, which took place at the premises of the CEA, was attended by Prof. Leon Cizelj, head of the Reactor Engineering Department.

The EUROSAFE 2016 conference program committee meeting

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 Belva. Conference is scheduled to take place on November 7th and 8th in Munich, Germany.

The first meeting of the program committee was aimed at defining the basic themes of the program of the conference and some of the innovations of the form and content of the conference. In 2016 the conference will focus much more on the development and the work of young professionals.

Meeting of the program committee of the EUROSAFE Forum 2016 conference organized by the German member of ETSON Association, GRS, was attended by Prof. Leon Cizelj, head of the Reactor Engineering Department.

JOPRAD project meeting

The JOPRAD project (Towards a Joint Programming on Radioactive Waste Disposal), which is co-financed by the European Commission under Horizon 2020 is preparing a basis for joint planning, implementation and co-financing of research on safe disposal of radioactive waste.

In the field of the safe disposal of radioactive waste a common programming is provided by the European Council Directive 2011/79/EURATOM. If the project JOPRAD is successful in outlining the rules of operation, the joint programming of research will already be exercisable towards the end of the Horizon 2020.

Meeting was aimed at familiarizing with the national research programs, national priorities and organization of the research work in the younger nuclear member states of the European Community (Slovakia, Slovenia, Hungary, Poland, Czech Republic, Romania, and Bulgaria). Sadly, Slovenia has no national research program in the field of the safe disposal of radioactive waste. This represents one of the major challenges for our future participation in European research projects.

The meeting, which was organized in Bucharest by the The Institute for Nuclear Research Pitesti, was attended by Prof. Leon Cizelj, head of the Reactor Engineering Department. Jožef Stefan Institute acts as an authorized expert in the JOPRAD project.

The first meeting of the ANNETTE project

The ANNETTE project (Advanced Networking for Nuclear Education and Training and Transfer of Expertise) is aimed at promoting the coordinated cooperation of all the nuclear stakeholders in the planning and implementation of education and training. The project, which has 24 partners, is funded by the European Commission under auspices of Horizon 2020 (EURATOM Fission).

The first meeting was devoted to planning and final division of labor between the partners. The role of Jožef Stefan Institute employees in the project is to coordinate cooperation with technology platforms and other professional associations in Europe, but also beyond its borders.

The meeting, which was organized at the University of Pisa by the Interuniversity Consortium for Technological Nuclear Research (CIRTEN), was attended by Prof. Leon Cizelj, head of the Reactor Engineering Department.

New experiment in Sweden planned by the department

Under the leadership of Dr. Matjaž Leskovar from the Reactor Engineering Division, a group of experts from the Commissariat à l'Energie atomique et aux Energies Alternatives (CEA) and the Institut de Radioprotection et de Suret Nucléaire (IRSN) in France along with the Institute for Nuclear Technology and Energy Systems (IKE) from Germany designed steam explosion experiment, which will be performed on the SES device at the Royal Institute of Technology (KTH) in Sweden. Experiment will be co-financed by the European Commission in the framework of the project SAFEST. Steam explosion can develop during a serious accident in a nuclear power plant, when the molten reactor core comes in contact with water.

NARSIS project proposal meeting

NARSIS (New Approach to Reactor Safety Improvements) project was proposed in 2014 to the call for Horizon 2020, but was due to financial constraints of the European Commission not selected for funding despite the good assessment. The main objective of the project proposal has been to scientifically improve individual elements required for probabilistic safety analysis, with emphasis on external natural event, i.e. earthquake, tsunami, coastal and river flooding and strong winds.

This year's NARSIS meeting was aimed to prepare a proposal for updated call of Horizon 2020 in 2016. Firstly, new participants in the project proposal were identified. Then the overall structure of the project proposal was looked at, followed by a review of the scientific content of each work package and connections between the work packages. Then the discussion took place on the new potential contributions to the project proposal as well as on the financial aspects. Since the proposal for the NARSIS project three new establishments were accessioned (to the original seventeen) and one was withdrawn. Since the maximum amount of funding is limited, the specific organization contributions, the amount of man-months needed, the amount of other costs (stay and travel, as well as the dissemination of knowledge) and the amount that should be co-financed by European Communities will need to be reassessed.

The NARSIS meeting, which was hosted on January 25th 2016 in Clamart by EdF (Électricité de France) and organized by CEA (Commissariat à l'énergie atomique et aux énergies alternatives) acting as coordinator, was attended by 14 representatives from 12 organizations along with two representatives of two organizations who participated at the meeting via teleconference. The meeting was attended by Dr. Andrej Prošek from the Reactor Engineering Division, JSI.

JOPRAD project meeting

The JOPRAD project (Towards a Joint Programming on Radioactive Waste Disposal), which is co-financed by the European Commission under Horizon 2020 is preparing a basis for joint planning, implementation and co-financing of research on safe disposal of radioactive waste.

In the field of the safe disposal of radioactive waste a common programming is provided by the European Council Directive 2011/79/EURATOM. If the project JOPRAD is successful in outlining the rules of operation, the joint programming of research will already be exercisable towards the end of the Horizon 2020.

The meeting, which was organized by the Belgian authorized expert for nuclear safety BelV, was attended by Prof. Dr. Leon Cizelj, head of the Reactor Engineering Division. Jožef Stefan Institute acts as an authorized expert in the JOPRAD project.

A preparatory meeting of the ICONE24 Conference

Under the auspices of the American Society of Mechanical Engineers (ASME) operates the Nuclear Engineering Division (NED), led by the eight-member Management Board.

The Management Board at their meeting focused primarily on preparations for the International Conference on Nuclear Engineering (ICONE), which is organized annually by the American (ASME) and Japanese (JSME) Society of Mechanical Engineers, as well as the Chinese Nuclear Society (CNS). The conference in 2016, which traditionally involves more than 800 nuclear professionals from around the world, will be held between June 26th and 30th 2016 in Charlotte, North Carolina, USA. In addition to preparations for the conference ICONE24, the Management Board also discussed the business sections of nuclear engineers during major organizational changes in ASME that take place during the 2014-2016 period.

Management board meeting of the ASME nuclear section, which was held in a conference center in the city of Charlotte, was attended by Prof. Dr. Leon Cizelj, head of the Reactor Engineering Division.

2nd Assembly of the AFRA-NEST Association

AFRA-NEST is an association of African universities working in research or education in the field of peaceful use of nuclear technologies or. nuclear energy. Already 2nd Assembly was attended by about 40 representatives of universities from most African countries, which indicates a relatively high vibrancy in the nuclear field. The only operating nuclear power plant in Africa is Koeberg in South African Republic.

Among the most important objectives of the meeting was the discussion on the possibilities of cooperation and exchange of experiences with similar associations from Europe (ENEN Association) and the USA (Nuclear Power Institute-Systems Engineering Inititative). Excellent opportunities with the support of the IAEA are provided for the exchange of students and teachers.

2nd general meeting of AFRA-NEST was organized the Zambian National Institute for Scientific and Industrial Research with the support of the IAEA. As a representative of the association of European nuclear universities ENEN the general meeting was attended by Prof. Dr. Leon Cizelj, head of the Reactor Engineering Division.

12th EUROfusion GA meeting

European fusion research within Horizon 2020 combines target-oriented 5-year (2014-2018) EUROfusion Fusion program, which takes place under the auspices of the EURATOM Treaty. The main objectives of the EU fusion research are related to research in support of the ITER fusion reactor and in the long-term, the realization of demonstration fusion power plant. EUROfusion program is carried out by a consortium of fusion research units of the EU Member States (29 in total), wherein "Jozef Stefan" Institute (JSI) acts as the Slovenian coordinator and partner in the consortium. The lead partner in the consortium is Institute of Plasma Physics (IPP), Germany. General Assembly is the decision-making body of the consortium.

In the days between December 17th and 18th 2015 in Milano, the 12th meeting of the General Assembly was held. Members of the Assembly discussed the strategy and some program points of EUROfusion program. Major topics that have been discussed have included the revision of the document entitled "Fusion roadmap", which sets out the main strategic directions of development of fusion technology by 2020, the report on modernization of the neutral particles injector on JET-u, a report on the status of certain EUROfusion projects and development strategy of DEMO reactor. The Assembly has also approved the financial plan for the year 2016. The meeting of the General Assembly EUROfusion was attended by Dr. Boštjan Končar from the Reactor Engineering Division, JSI.

ASAMPSA_E project meeting

ASAMPSA_E (Advanced Safety Assessment: Extended PSA) is a three-year European project of the 7th Framework Programme dedicated to the identification of good practices in assessing the effects of the combination of extreme external events on nuclear power plant safety using probabilistic safety analyses. The first work package is aimed at identifying the needs of end-users, the second to modeling initiating events and how they are taken into account in the probabilistic safety analyses of the first level (events leading to insult core), the third to general problems of extended probabilistic safety analyses and fourth to specific problems related to the probabilistic safety analyses of the second level (the expected frequency, quantity, composition, location, etc. of radioactive releases into the environment due to the failure of bulkheads and containment systems).

Purpose of the ASAMPSA_E project meeting was to review the status reports for the above-mentioned work packages. A total of 20 presented status reports with the necessary steps for the completion of these reports. JSI was particularly actively involved in the reports D30.4 "The Link Between the Defence-in-Depth Concept and Extended PSA", D30.5 "Risk Metrics and Measures for an Extended PSA", D40.4 "External Events and PSA Level 2" and D40.5 "Guidance on the verification and improvement of SAM strategies with L2 PSA". Finally, it was told that the project coordinator asked for a six-month extension of the project, i.e. up to December 31st 2015.

The ASAMPSA_E project meeting for all four work packages, which was hosted between November 23rd and 27th 2015 in Fontenay-aux-Roses by the Institut de Radioprotection et de Suret Nucléaire (IRSN) (Radioprotection and Nuclear Safety Institute), was attended by dr. Andrej Prošek from Reactor Engineering Division of JSI.

EFPW2015 workshop

Extreme conditions in a fusion reactor require the use of specific materials and components, its precise and reliable testing and assessment of their properties. These topics were addressed at this year's European Fusion Programme Workshop - EFPW 2015, held in Bled from 30 November to 2 December 2015 that is being organized by the Slovenian Fusion Association (SFA) and the Jožef Stefan Institute in the framework of the EUROfusion programme (the largest co-fund program in Horizon 2020). Slovenian Fusion Association, coordinated by the Reactor Engineering  Division JSI, participates in the program with several projects amounting approximately 1 million Euros per year. The workshop hosted leading European researchers from different fields exchanging their views on the characteristics and intended use of materials aiming to define the guidelines for further progress.

EAES management meeting

European Atomic Energy Society (EAES) is an informal association of leading researchers and directors of European research institutes which research nuclear energy. Among the members can be found in addition to JSI also employees of the Finnish VTT, the Belgian SCK-CEN, the French CEA, German KIT, Hungarian MTA AEK and others.

Members of the EAES management have met at a working meeting in the Reactor Engineering Division. The main topic of the meeting was the challenges and opportunities to strengthen bilateral and multilateral cooperation between the members of the association. Special attention was given to challenges posed by shrinking of national and European sources of research funding. Possible actions will be discussed at the next meeting, to be held in May 2016 at the Polish National Institute of Nuclear Energy NCBJ.

ARCADIA (H2020) project meeting

ARCADIA is a project under the 7th Framework Programme of the European Commission, which is intended to support the preparatory work for the construction of a demonstration lead-cooled 4th generation reactor. The reactor planned by Ansaldo Nucleare and ENEA (Italy) is intended to be built in the immediate vicinity of the Romanian Institute for Nuclear Reseach Pitesti ICN.

Within the project meeting focus was mainly on rules and requirements for the construction of new reactors and the availability of the necessary knowledge, experience and research, and industrial equipment, which will be indispensable in the construction of a demonstration reactor.

The meeting, organized by the Polish Institute of Nuclear Chemistry and Technology, was attended by Prof. Leon Cizelj, head of the Reactor Engineering Division.

SNETP Governing Board meeting

Sustainable Nuclear Energy Technology Platform (SNETP) brings together more than 210 nuclear stakeholders from all European nuclear countries. Among the key objectives of the Platform include the preparation of strategic development documents, especially for research and development in the field of 2nd and 3rd generation reactors, 4th generation reactors and cogeneration of heat and electricity with nuclear reactors. European Commission research framework programs co-financed projects related to strategic development priorities, which are prepared and correlated by platform stakeholders.

The Governing Board discussed the future organization of the Platform Secretariat, confirmed two new members and initiated tasks for the Platform assembly, which is scheduled for March 2016.

The meeting, organized by the Belgian Nuclear Research Centre SCK-CEN, was attended by Prof. Leon Cizelj, head of the Reactor Engineering Division.

Invited lecture at the REMOO 2015 conference

Conference REMOO for the fifth year in row brings together those representatives of industry, research and education institutions and administrative bodies dealing with (nuclear) energy, which operate or have an interest to work in Slovenia and its immediate surroundings. After the events in Zagreb (2011), Ljubljana (2012), Belgrade (2013) and Ljubljana (2014), the group got together this time in Budva, Montenegro. The leading topics of the conference were technological breakthroughs in the energy and technological development through experiments and computational simulations.

The conference was attended by Prof. Leon Cizelj, head of the Reactor Engineering Division, who presented an invited lecture entitled "Experimental support for safer and more reliable power generation."

EUROCORR Conference 2015

European Federation of Corrosion annually organizes a EUROCORR conference. Part of the conference was devoted to corrosion in nuclear systems, which is organized by the Working Group on Nuclear corrosion. In 2015 the organization of the conference was taken over by Austrian Society for Metallurgy and Materials (ASMET).

The conference was attended by Prof. Leon Cizelj, head of the Reactor Engineering Division, at the invitation of the President of the Working Group on Nuclear Corrosion Prof. Damien Feron (CEA, France), who also chaired the section on nuclear corrosion.

BRIDGE+ (ERASMUS+) project meeting

The aim of the Bridge+ project is to reduce or bridge the gap between academic education in nuclear technology and training on the SAT principle (systematic approach to training), which is generally carried out by employers. The project is financed by the European Union within the framework of ERASMUS+ project, coordinated by the Polytechnic of Bucharest cooperating with companies Technatom from Madrid, Energonuclear from Bucharest and the "Jožef Stefan" Institute.

At the meeting, completed documents of the project were reviewed. At the same time, division of work and working methods for ongoing part of the project were set.

The meeting, organized by the company Technatom, was attended by Prof. Leon Cizelj, head of the Reactor Engineering Division.

Meeting of the High Scientific Council of the European Nuclear Society (HSC ENS)

High Scientific Council is a consultative body of the European Nuclear Society (ENS). One of the basic tasks of the Council includes a debate on the situation and the strategic priorities for the safe use of nuclear energy. The High Scientific Council advises the ENS association leadership, with written observations published on a regular basis, several times per year. Views on important topics are occasionally provided also to the European Commission.

At the meeting a thorough discussion on the present and future role of science in nuclear power was held. It was noticed that the science in this area was recently somewhat neglected and that it may make an important contribution in the future both to improve the safety of nuclear power plants as well as in the public debate on the acceptability of nuclear energy. It was agreed that a special statement will be prepared for the 40th anniversary of the ENS, which will be in spring 2016, on the need for a greater contribution to science. The statement will largely rely on the article of L. Cizelj,”Research and Higher Education: A Disposable Part of Fundamental National Infrastructure, Contemporary Energy (2015)”.

The meeting at the headquarters of the European Nuclear Society (ENS) in Brussels was attended by Prof. Leon Cizelj, head of the Reactor Engineering Division.

EUROSAFE Forum 2015 and the Governing Board and General Assembly ETSON meeting

EUROSAFE Forum is organized each year by the three major European organizations for scientific and technical support to the nuclear regulatory bodies: the French IRSN, German GRS and Belgian BelV.

The conference was, in addition to the usual issues related to research on the topic of nuclear safety and the safe disposal of radioactive waste, dedicated to the challenges posed by the new Council Directive 2014/87/Euratom of 8 July 2014.

In conjunction with the EUROSAFE Forum regular meetings of the ETSON association were also held: Technical Board for Reactor Safety (TBRS) adopted a new document, which documents the post-Fukushima requirements for the enhancement of nuclear safety in the European countries, whereas the Governing Board and General Assembly of the ETSON association outlined the work of the association for 2016.

EUROSAFE Forum 2015 and the accompanying meetings of the ETSON association, organized by the Belgian member of ETSON, BelV, were attended by Prof. Leon Cizelj, head of the Reactor Engineering Division.

SESAME work meeting

Project SESAME is a project within the European project Horizon 2020. The three main objectives of the SESAME project are: the 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. Project results are expected to be used in the planning and improvement of fourth generation reactors such as ASTRID, MYRRHA, ALFRED and SEALER. The project is divided into 7 work packages. 23 organizations from the European Union and two organizations from the USA are involved in the project.

In the first part of the meeting, administrative changes to the project, together with the reasons for them, were introduced. The main change in the project administration is the change of the project coordinator. Because of the rules of the European Commission and financial problems of NRG, the new coordinator is ENEA. Another change concerns the partners from the USA. Due to the export rules, partners from there cannot participate directly in the project. After the introductory meeting and a meeting of the work package 6, the meetings of other work packages were held in two parallel sessions in the following days. The meeting ended with a technical tour of two research laboratories in the research organization CEA at Cadarache.

The meeting was organised between 11th and 14th of October in the Château de Cadarache near the research centre of CEA at Cadarache. As a representative of the Reactor Engineering Division, Jure Oder attended the meeting. At the meeting of work package 1: Fluctuations and vibrations, he presented the results achieved in the last six months.

Fall 2015 CAMP Meeting

CAMP (Code Applications and Maintenance Program) is the largest research program conducted under the auspices of the federal nuclear Administrative Commission of the US NRC (Nuclear Regulatory Commission) since 1993. In the context of the research program CAMP the development and exchange of experience on system software RELAP5 and TRACE, neutronics program PARCS and graphical interface SNAP take place. In the CAMP program, on the basis of an agreement with US NRC, are currently working over 40 organizations from 28 countries. 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).

Autumn meeting of the CAMP was divided into two parts, namely the technical and programing part. In the technical work representative of the US NRC presented the status of the development of US NRC computer programs RELAP5, TRACE, PARCS and SNAP. This was followed by seven CAMP member states' reports (Finland, Mexico, Poland, Slovenia, Sweden, Switzerland and Ukraine) and 15 technical contributions. JSI presented the report " Status of CAMP Activities in Slovenia " from the authors Andrej Prošek and Ovidiu Adrian Berar. Within the programming part of CAMP work meeting the need for further development of system software for simulation of nuclear installations and suggestions of in-kind contributions that are required for all participants in the CAMP (Slovenia one contribution per year) was discussed. IJS has proposed an in-kind contribution for 2016 entitled "RELAP5 and TRACE calculations of LOCA in PWR", which was endorsed by the technical program committee.

This year's autumn meeting of CAMP, which took place from November 4th – 6th 2015 in Gettysburg, USA, was organized by the US NRC. The meeting was attended by 53 representatives from 14 countries, of which two via video conference, 21 from the host country and 15 from Korea. Dr. Andrej Prošek from the Reactor Engineering Division of JSI attended the meeting.

MINOS International Workshop

Centre of excellence for nuclear materials - MINOS was established in 2011 by the Division of Atomic Energy, CEA, France. Within the Centre the basic and applied research in the field of nuclear materials and structures are carried out. The main objective of this research is to improve safety and extend the lifetime of currently operating reactors, to optimize the management of radioactive waste and to develop new materials for the 4th generation nuclear reactors. MINOS encompasses three French research centers: Saclay, Cadarache and Marcoule.

MINOS promotes research on nuclear materials by organizing international workshops and schools. The content of this year's MINOS workshop, the second in a row, entitled "Irradiation of Nuclear Material Flux and Dose Effects" was linked to research of irradiation effects on materials used in existing reactors and materials that are considered for the next fission and fusion systems. The emphasis was on structural materials (mainly metal alloys) and materials related to nuclear fuel. Effects of flux and radiation dose from irradiation with neutrons, electrons or ions were examined at the nanometer (primary damage), micrometer (evolution of damage) and centimeter or larger scale (impact on the physical, chemical and mechanical properties). In four sections, each open to invited lectures, experimental tools and equipment as well as theoretical models and simulations were presented.

MINOS workshop, which was organized in Cadarache by CEA and the INSTN, was attended by Dr. Samir El Shawish from the Reactor Engineering Division of the "Jožef Stefan" Institute.

Hydrogen combustion in the experimental vessel

Reactor Engineering Division (R4) designed and executed hydrogen combustion experiment in the experimental device HYKA A2 at the Karlsruhe Institute of Technology (KIT) in 2012 with financial support from the European Commission. The most important result of the experiment, which today represents one of the most important sources for the experimental validation of the theoretical models, has been the flame propagation speed. The design and implementation of similar experiments will continue in 2016 on an experimental device HYMIT at Jiao Tong University in Shanghai. Design and implementation of the experiment, which will be co-financed by the European-Chinese ALISA project, will be led by Dr. Ivo Kljenak from R4 and joined by the experts from Nuclear Research and Consultancy Group (NRG) of the Netherlands as well as KIT from Germany.

11th EUROfusion General Assembly meeting

European fusion research in the context of Horizon 2020 combines target-oriented 5-year (2014-2018) EUROfusion fusion program, which takes place under the auspices of the EURATOM treaty. The main objectives of the EU fusion research are related to research in support of the ITER fusion reactor and in the long-term, to the realization of the demonstration fusion power plant. EUROfusion program is carried out by a consortium of fusion research units of the EU Member States (29 in total), wherein "Jožef Stefan" Institute (JSI) acts as the Slovenian coordinator and partner in the consortium. The lead partner in the consortium is the Institute for Plasma Physics (IPP), Germany. Decision-making body of the consortium is the General Assembly.

In the days from 8/30 to 10/1/15, 11th meeting of the General Assembly was held in Budapest. At the General Meeting some of the EUROfusion program progress contents were presented:

  • The European Commission has accepted program of extended operation of JET until 2020. The new experimental campaign at JET fusion reactor in Culham will be launched in November 2015.
  • EUROFUSIONE Consortium is formally included in the development program of the Japanese Tokamak JT-60SA
  • The leaders of three work projects (configuration of the plasma discharge, diverter design and development of superconducting magnets) presented the work done in 2014 to the General Assembly.

Drafts of the program and financial plans for 2016 as well as for the future of the EUROfusion program calls were presented. On the agenda of the Assembly was also a program and organization of the conference of the EUROfusion program, which will be organized this November by the Slovenian Fusion Association and "Jožef Stefan" Institute (JSI).

EUROfusion program General Assembly meeting was attended by dr. Bostjan Koncar from the Reactor Engineering Division, JSI.

Prof. Dr. Leon Cizelj will chair the program committee of the global nuclear conference ICONE24

International Conference on Nuclear Energy (ICONE) is one of the most renowned global conferences of nuclear experts working in industry, science, education and administrative bodies. The conference, at which over 1,000 participants from all over the world gather every year, is organized jointly by the US and the Japanese Society of Mechanical Engineers (ASME and JSME) and the Chinese Nuclear Society. The ICONE24 conference will be held between June 26th and 30th 2016 in Charlotte (North Carolina, USA) and its program committee will be chaired by Prof. Dr. Leon Cizelj, head of the Reactor Engineering Division.

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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