Enhanced Safety & Operation Excellence

Focus Session

Coordinator: Erik Baumann, AREVA GmbH, Germany
Co-Coordinator: Dr. Angelika Bohnstedt, Karlsruhe Institute of Technology (KIT), Germany

Tuesday, 10 May 2016, 09:00 -11:30

Protection against ionizing radiation is an item touching us in various fields of our activities: operation of nuclear power plants, decommissioning, waste treatment and disposal, health care, etc.

This session is organized to demonstrate the high importance of radiation safety culture as part of the overall safety culture. It concentrates on radiation protection as a task of occupational safety – but also of other areas of activities: industry dealing with naturally occurring radioactive materials and, more generally, natural background sources.


Radiation Protection - Changes When Implementing the Guideline 2013/59 Euratom Compared to Established Radiation Protection Goals

Dr. Margot Horn, TÜV Rheinland Industrie Service GmbH, Germany

Radioactivity and Radiation Protection in NORM (Naturally Occurring Radioactive Materials) Industry – an OverviewDr. habil. Rainer Gellermann, Nuclear Control & Consult GmbH, Member of the SKK and the association, Germany
Has Radiation Protection been Adapted for Dismantling?Andreas Jüterbock, Studsvik GmbH & Co. KG, Germany
TECHREC WP3 – Development of EU Technical Recommendations for Monitoring Occupational Intakes of RadionuclidesDr. George Etherington, Group Leader, Internal Dosimetry Radiation Hazards and Emergencies Department Centre for Radiation, Chemical and Environmental Hazards, Public Health UK PHE
Fukushima – What is the Implication for Radiation ProtectionDr. Wolfgang Weiss, Former Head of the Department of Radiation Protection and Health of the Federal Office for Radiation Protection (BfS), Former Chair of UNSCEAR, Germany
Boron Neutron Capture Therapie (BNCT) - Physical and Radiation Protection Aspects of the Application of Powerful Tool Against Cancer in Non-Operable CasesDr. Marina Sokcic-Kostic, Principal Engineer, I & C and Electrical Systems, Radiation Monitoring Systems, NUKEM Technologies Services GmbH, Germany

Coordinator: Dr. Erwin Fischer , Member of the Management Board, E.ON Kernkraft GmbH, Germany

Tuesday, 10 May 2016, 09:00 - 11:45

The market prices for generated electricity have decreased continuously in the last 4 years as a consequence of the “Energiewende”. This situation puts a lot of pressure also to the operation of NPPs in Germany to strive more than ever for Operational Excellence. 

Therefore the operational set-up of the plants has to be optimized continuously in all processes of the plant organization, for example maintenance, inspection, cyclic testing, ageing- and lifetime management, management systems, work preparations to guarantee safety, availability and improved competitiveness under challenging market conditions.

Within this session examples for good practices in these fields will be presented and discussed.

Maintenance Strategy, a Precondition for Operational Excellence Burkhard Cramer, NPP Oskarshamn, Sweden
Reliable Inspection Concepts for Safety-Related ValvesParkin Borsum, TÜV Süd, Germany
Aging Management – a Contribution to Held NPPs in Safe Condition

Dr. Frank Michel, Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH, Germany

Post-Fukushima, Lessons Learned Resulting in Additional Safety Measures for NPPsDr. Andreas Strohm, EnBW Kernkraft GmbH, Germany
One.BFS – Operational Management System With Collected 120 Years of ExperienceGerhard Herz, E.ON Kernkraft GmbH, Germany
“Reactivity-Management”, a Measure to Prevent Unsafe Situations in Operating NPPsMarkus Luginger, NPP Isar, Germany

Topical Sessions

Coordinator: Dr. Ludger Mohrbach, VGB PowerTech e.V., Germany

Wednesday, 11 May 2016, 13:00 - 16:30

With worldwide over 15.000 reactor years a treasure of operating experience has now been compiled. Today, the technology is mature and safe, nevertheless additional margins on safety and economy can still be raised. In a few cases events and findings lead to further investigations and subsequent improvements, shared as within probably no other industry. For more than half a century, overall nuclear safety has therefore continuously improved by a factor of ten every ten years. This section is therefore devoted to some exemplary operational aspects, being prominent on the operator's agendas of today.

Open Phase Events – Facts and Challenges from a NPP Operator’s PerspectiveChristian Reisenberger, Kernkraftwerk Isar, Germany
Robustness of Lightning Protection in German Nuclear Power PlantsProf. Dr. Alexander Kern, FH Aachen, Germany
Repair Concepts for PWR Fuel Assembly Guide PinsAndreas Lemm, AREVA GmbH, Germany
Long-term Operation of NPP: Key Issues in Safety Assessment

Dr. Urs Weidmann, KNS Eidgenössische Kommission für Nukleare Sicherheit, Switzerland

Grid Services from Nuclear Power PlantsMarkus Bresler, E.ON Kernkraft GmbH, Germany
New VGB Standard “Professional Leadership Behaviour"

Dr. Christian Mönning/Dr. Tim Büscher, RWE Power 

Eckhard Nithack, E.ON Kernkraft GmbH

Jörg Ritter, EnBW Kernkraft GmbH

Coordinators: Dr. Andreas Schaffrath, Head of Division Reactor Safety Research, Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH, Germany; Prof. Dr. Marco K. Koch, Ruhr-Universität Bochum, Germany; Dr. Tatiana Salnikova, AREVA GmbH, Germany

Thursday, 12 May 2016, 08:30 - 13:00

The Topical Session Fuel and Safety addresses current research issues and developments in Nuclear Reactor Safety. After an overview two topics are considered in depth. These are criteria for Loss of Coolant (LOCA) Analyses and investigations of heat removal from spent fuel pools. The presentation will be given by nuclear stakeholders from industry, research and TSO reflecting inter alia the view of the German Reactor Safety Commission (RSK) and the progress made the last years.

Current Research Topics and further Development in Nuclear Reactor SafetyUwe Stoll, AREVA GmbH, Germany
RSK Amendment of Acceptance Criteria for the Analysis of LOCAUlrich Waas, Member of RSK, Germany
A New Criterion for the Evidence of the Core Coolability at LOCADr. H.-G. Sonnenburg, Gesellschaft für Anlagen- und Reaktorsicherheit gGmbH, Germany
AREVA Verification Methodology of New Embrittlement Criterion

Dietmar Deuble, AREVA GmbH, Germany

Regulatory Requirements with Respect to Spent Fuel Pool-CoolingDr. Christoph Pistner, Öko-Institut e.V, Germany
Experimental Studies on Residual Heat Removal from Evaporating Fuel Spent Fuel PoolsChristine Partmann, Technische Universität Dresden, Germany

New Technical Concepts of Spent Fuel Pool-Cooling and Implementation

Dr. Thomas Fuchs, AREVA GmbH, Germany

Experimental and Analytical Investigation of the Performance of Heat Pipes for Residual Heat Removal from Spent Fuel Pools

Prof. Dr. Jörg Starflinger, Universität Stuttgart, Germany

Claudia Graß, Technische Hochschule Georg Simon Ohm, Germany

Dr. Andreas Schaffrath, Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbh, Germany

Dr. Markus Pöhlmann, AREVA GmbH, Germany

Technical Session

Wednesday, 11 May 2016, 08:15 -19:15

Chair: Dr. Jürgen Sydow, Project Manager TÜV Nord GmbH & Co.KG, Germany 

Spent Fuel Pool and Calculations
Threshold Nuclear-Physical Processes in Multiplying Fuel-Rod Arrays and Systems with ThoriumKonstantin Savasichev, National Research Tomsk Polytechnic University, Russia
Development of Passive Spent Fuel Pool Cooling by Heat PipesProf. Dr. Jörg Starflinger, University of Stuttgart, Germany
Advanced Cooling Tube – Mobile Heat Exchanger in the Shape of a Fuel Assembly for Spent Fuel Pool CoolingMatthias Reuter, AREVA GmbH, Germany
Retrofitting a Spent Fuel Pool Spray System Against the Background of the Reactor Accident in Fukushima DaiichiChristian Giesel, Westinghouse Electric Germany GmbH, Germany
Simulation of Hydrogen Combustion During Spray Operation with COCOSYSTobias Jankowski, Ruhr-Universität Bochum, Germany
Shielding and Criticality Analyses for Handling of a Quiver for Special Fuel RodsDr. Sven Tittelbach, WTI GmbH, Germany


Chair: Dr. Thorsten Hollands, Safety Manager, Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH, Germany

A Comparative Assessment of ATHLET-CD and MELCOR by Simulating the Experiment PHEBUS FPT1Christian Bratfisch, Ruhr-Universität Bochum, Germany
Reducing In-Core Zinc Borate Predcipitation After Loca in Pressurized Water ReactorsDr. Holger Kryk, Helmholtz-Zentrum Dresden-Rossendorf HZDR, Germany
In-Core Zinc Borate Precipitations after LOCA in Pressurized Water Reactors – Past Experiences and Upcoming InvestigationsDr. André Seeliger, Hochschule Zittau/Görlitz, Germany


Chair: Dr. Sven Tittelbach, WTI GmbH, Germany

Insights into Operational Experience
The Periodic Safety Review 2016 of the NPP BrokdorfRalf Wohlstein, E.ON Kernkraft GmbH, Germany
Operational Experience of Siemens/KWU LWR Nuclear Power Plants – A Successful StoryDr. Renate Kilian, AREVA GmbH, Germany
A Comprehensive Approach to Experience Based Learning by Combining Proactive and Reactive Learning within One Management SystemJuliane Ahrens, Hans Maimer, SOL-VE GmbH, Germany
Oliver Wendt, Vattenfall GmbH, Germany
Cleavage Fracture Assessment of Components under Transient Thermomechanical LoadingJohannes Tlatlik, Fraunhofer Institute for Mechanics of Materials, Germany
The Effect of Heat Treatments at Different Plastic States on the Isotropic Hardening Behavior of Austenitic Stainless SteelPaul Wilhelm, AREVA GmbH, Germany
Selected Methods and Detail Solutions of the RPV: Water Level Measurement for Boiling Water ReactorsFrank Dräger, E.ON Kernkraft GmbH, Germany


Chair: Dr. Anke Traichel, Head of Department Safety NUKEM Technologies Engineering Services GmbH, Germany

Safety, IT, Hazards and PSA
Modeling Attacks on Critical Infrastructure: A First Summary of Existing ApproachesRobert Fischer, Otto-von-Guericke University of Magdeburg, Germany
Nuclear Safety and Risk-Based Cybersecurity TestingYuan Gao, AREVA GmbH, Germany
Optimized Process for Whisker Removal from I&C BoardsDr. Markus Pöhlmann, AREVA GmbH, Germany
Particulate Fission Product Wash-down from Containment Walls and Installation SurfacesDr. Martin Freitag, Becker Technologies GmbH, Germany
Temporary Transportation Openings in Reactor Buildings and Liner – Planning and Execution AspectsAndre Oberste-Schemmann, Westinghouse Electric Germany, Germany
Verification of the Earthquake Safety of Electrical EquipmentDr. Marcus Ries, Wölfel Beratende Ingenieure GmbH Co KG, Germany
Application of the Reciprocity Theory to Calculate Organ Doses in Phantoms Immersed in WaterDr. Mauritius Hiller, Oak Ridge National Lab, USA
CRAFT – Control Room Accident FiltrationMarina Welker, AREVA GmbH, Germany
Equipment Qualification: An Assessment for Nuclear SafetyKarl-Heinz Wiening, AREVA GmbH, Germany
Containment Event Tree for the Level 2 Probabilistic Safety Assessment of EU-ABWR-Comparison with the CET for ESBWR and Development of Selected Split FractionsÖzlem Yilmaz, University of Stuttgart, Germany