<strong>atw</strong> Vol. 60 (<strong>2<strong>01</strong>5</strong>) | Issue 1 ı January 36 AMNT 2<strong>01</strong>4 Bruno Jasper explained “The Powder Metallurgical Route to Tungsten-Fiber Reinforced Tungsten”. His co-authors were J.W. Coenen, Ch. Linsmeier (both FZJ) and J. Riesch and J.-H. You (Max-Planck-Institut für Plasmaphysik, Garching, Germany) as well as A. Mohr (Ruhr Universität Bochum, Germany). Tungsten structures can withstand high temperatures but tungsten is a relatively brittle material. Tungsten-fiber reinforced tungsten (Wf/W) composites are supposed to enable enhanced toughness due to extrinsic energy dissipation mechanisms such as interface debonding and plastic deformation of fibers. So far Wf/W has been produced by Chemical Vapor Infiltration (CVI). The crucial property of this material is a certain ability of the fibers to move microscopically with respect to the surrounding tungsten bulk. This feature is secured by very thin coatings of the tungsten fibers, e.g. by erbium oxide. CVI does not damage neither the fibers nor their coating. Unfortunately, CVI is limited to rather small production rates. B. Jasper and his colleagues are investigating alternative methods, namely powder metallurgical routes of Wf/W production: Hot Isostatic Pressing (HIP) and Electro Discharge Sintering (EDS). The advantage of such a procedure could be much larger production rates. It is, however, a big challenge not do damage the fibers and their coatings during these new production processes which impose high thermal and mechanical stresses onto the fibers. In this context, EDS might be the preferable process. During EDS a powder is placed between two electrodes and then compacted by a short but high energy pulse. In addition an axial pressure is applied to increase the density even further. First pure W samples showed high values for the relative density. Investigations on samples including fibers are ongoing, supported by comprehensive modelling efforts. The Technical Session was chaired by Thomas Mull (AREVA GmbH). Competence, Innovation, Regulation: Education, Expert Knowledge, Knowledge Transfer Jörg Starflinger Design and Development of Training for Managers of a Nuclear Operator (Anna Starynska, Spider Management Technologies Ukraine; Ronald Landefeld, Christian Schönfelder and Robert Geisser, AREVA GmbH): AREVA with their subcontractor Spider Management Technologies Ukraine are currently implementing a consultancy project with the objective to complete a management training center of a nuclear operator. As an important milestone, the development as well as the training needs analysis of managers has been completed recently, and accepted by executive management of the operator. In the paper the methodology used has been described, the connection of development needs with the strategic reorientation of the operator and the contribution of management training to achieving the strategic goals of the utility, in particular improvement of nuclear safety. The highest priority of all activities of a nuclear operator shall be given to establish a mechanism of permanent improvement of safety culture according to IAEA-Safety Series No. 75-INSAG-4. Based on a management competence model, a special tool – the Individual Training and Development Plan – was elaborated for managers’ appraisal, identification of training needs, elaboration of individual plans for development of managers and trainers, and monitoring of the personal development process. In summary, the utilization of the competence model allows establishing, forming and developing preferable behaviour of managers in the context of creation of necessary operation culture. Individual training and development plans for managers are an efficient and effective tool of implementation of the operator’s middle and long term strategy. Support of an University Nuclear Master Course by a Nuclear Supplier (Tomas Bajer, AREVA NP Controls, s.r.o.; Vladimir Slugen, Slovak University of Technology; Stefan Glaubrecht and Christian Schönfelder, AREVA GmbH): The cooperation between the Institute of Nuclear and Physical Engineering FEI STU, University of Bratislava, Slovak Republic, and AREVA has been presented. This cooperation is considered as a win-win arrangement for all stakeholders, the university, students and AREVA. The university can rely on state-of-the-art technologies for its education activities, expand its lecture offer and establish an international scope. Students will gain a deeper comprehension of current issues in nuclear Instrumentation&Control and they will be better prepared for their future job positions and career perspectives. AREVA will profit from the students’ enhanced specific knowledge on nuclear technology and access to well-educated and motivated graduates. As an example the preparation and delivery of specialized lectures and practical exercises for an upcoming new subject “Measurement and control in nuclear power plants”, focusing on stateof-the-art technologies, especially TELEPERM ® XS (TXS), which is also used in Slovak NPPs of VVER-440 type. AREVA contributed to four of the twelve lectures of the university course. This cooperation will be formalized in the near future by concluding an agreement detailing the scope of the cooperation. The cooperation could also be extended in the future, e.g. by expanding the number of lectures and lab works that are supported by AREVA, by organizing student internship and Master theses in AREVA facilities, or even by performing joint R&D projects. Practical Implementation Methodologies of Preserving Competence in Nuclear Power Plants (Michael Burkhard, GiS - Gesellschaft für integrierte Systemplanung mbH): To preserve competence and knowledge in nuclear power plants, professional tools are in use in the area of maintenance and operations, so-called “Enterprise Asset and Operations Management Solution (EAM)”. Such a system contains operational data, maintenance instructions, technical specifications, historical data, etc. It can be extended to a Knowledge Preservation System (KPS), which contributes to prevent the loss of knowledge, that processes can be optimized by utilizing experience and to extend of the power plant’s life cycle. If the KPS is established in a very early stage, information is inserted in a less filtered way. That way it is possible not only to learn from best practices but also to prevent doing the same mistakes twice. As soon as this is achieved, learning from best practices as well as learning from mistakes, it is very likely that the power plant is optimally prepared for a technically and economically optimized future. The main target and the focus has to be on gathering data in a sufficient way whilst enabling users to get those information attached directly to their actual work so they get the information they need at the right time, in the right context and in the appropriate details. Such system has been applied successfully in several nuclear power plants in Germany and Switzerland. Authors: Angelika Bohnstedt Karlsruher Institut für Technologie (KIT) Programm Nukleare Sicherheitsforschung (NUKLEAR) KIT Campus Nord, Gebäude 433 Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen/Germany Thomas Mull AREVA GmbH Nuclear Fusion, HTR and Transverse Issues (PTDH-G) Paul-Gossen-Straße 100 91052 Erlangen/Germany Prof. Dr.-Ing. Jörg Starflinger Institutsleiter Universität Stuttgart Institut für Kernenergetik und Energiesysteme (IKE) Pfaffenwaldring 31, 70569 Stuttgart/Germany AMNT 2<strong>01</strong>4 Key Topic | Reactor Operation, Safety – Report Part 3
The International Expert Conference on Nuclear Technology Estrel Convention Center Berlin 5–7 May <strong>2<strong>01</strong>5</strong> Germany Key Topics Outstanding Know-How & Sustainable Innovations Enhanced Safety & Operation Excellence Decommissioning Experience & Waste Management Solutions Programme 3 Gold Sponsor 3 Silver Sponsors www.nucleartech-meeting.com Fuel
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