AREVA Nuclear Professional School

Transcription

1 AREVA Nuclear Professional School Andreas G. Class, Thomas Schulenberg (Karlsruhe Institute of Technologie) Mathias Lamm, Stefan Niessen (AREVA NP, Erlangen). KARLSRUHER INSITUT FÜR TECHNOLOGIE (KIT) KIT University of the State of Baden-Wuerttemberg and National Research Center of the Helmholtz Association

2 ANPS - Facts 2009 AREVA NP and Karlsruhe Institute of Technology (KIT) founded the AREVA Nuclear Professional School (ANPS) hosted by KIT and sponsored by AREVA NP ANPS was organized by Prof. Schulenberg 2011 establishment of endowed professorship at KIT with Prof. Class as the current director. ANPS has 14 KIT employees and 3 AREVA employees delegated to KIT (mainly consisting of PhD students) PhD funding by AREVA NP, RWE, EU-projects (THINS, SEARCH, MAXIMA) German Science Foundation DFG (IAEA/NEA) AREVA Nuclear Professional School

3 ANPS - Facts specialized teaching blocks performed by senior scientists. education performed by 9 professors & 4 lecturers of nuclear technologies addresses young scientist/engineers at beginning of their career & experienced scientist/engineers 15 (19) teaching blocks with ~20 units of 90 minutes each practical exercises visit to test facilities teaching blocks are offered annually since 2009 teaching language was German until 2012 teaching language is English since 2013 Up to 20 attendees for each teaching block ~ 50% capacity since Fukushima Teaching blocks are offered at customer site on demand Petten Education & Training for EU-Projects (SEARCH, MAXIMA) AREVA Nuclear Professional School

4 ANPS - Facts teaching blocks are offered free of charge to AREVA employees (~1/4) KIT employees (~1/2) teaching blocks are open to non-areva/kit employees (~1/4) teaching blocks can be tailored to customs needs and delivered at customer site (e.g. Petten, Netherlands, Lynchburg) block courses cover wide range of nuclear topics nuclear safety including severe accidents thermohydraulics reactor physics system codes core design fuel management nuclear materials AREVA Nuclear Professional School

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6 offers of Areva NPS specialized teaching blocks covering nuclear science and technology two-year post graduate studies in nuclear science Three year PhD at KIT AREVA Nuclear Professional School

7 Time No. Course cancelled: training-reactor workshop ; 3 days reactor physics calculations with deterministic methods ; Light Water Reactor core design and fuel management days ; LWR Core Feedback and Transient Response days ; heat transfer days coupled neutronic/thermo-hydraulic system-codes Technology and Management of the Decommissioning of Nuclear Facilities ; multidimensional computational fluid dynamics days two-phase flow in one-dimensional models beyond-design accidents, core-melt accidents AREVA Nuclear Professional School

8 Time No. Course ; subchannel modelling of fuel assembly flow days Monte Carlo criticality and shielding calculations Radiolytic Gases Management in BWRs ; stress analysis days autumn thermo-hydraulic stability analysis autumn structure materials for cladding and reactor components autumn Strömungssimulation mit OpenFOAM autumn Severe Accident Simulation in Liquid Metal Reactors Time No. Course MAXSIMA Lecture Series: Safety features of HLM reactor systems IAEA Course on Science and Technology of SCWRs

9 introduction H2 behavior GASFLOW COM3D structure Outline of course on containment thermohydraulics and hydrogen behavior AREVA Nuclear Professional School Containment thermohydraulik und Wasserstoffverhalten Start-time 09:00 outline - motivation and goal Monday Tuesday Wednesday Thursday Friday T. Jordan hydrogen behavior fundamentals W. Breitung COM3D theory A. Kotchourko GASFLOW - theory, validation and applications P. Royl structur mechanical loads of the containment due to hydrogen combustion T.Jordan 10:30 Coffee brake Coffee brake Coffee brake Coffee brake Coffee brake 11:00 containments design and function priciples T. Jordan direct containment heating W. Breitung benchmarking of combustion analysis J. Yanez GASFLOW implemention, generic containment analysis S. Benz structur mechanical loads of the containment due to hydrogen combustion T. Jordan 12:30 lunch lunch lunch lunch Lunch 14:00 fundamentals T. Jordan generator hydrogen W. Breitung PC excercises on A. Kotchourko PC exercises on P. Royl Visit of hydrogen thermohydraulics COM3D / J. Yanez GASFLOW technicum 15:00 Coffee brake Coffee brake Coffee brake Coffee brake 15:30 fundamentals T. Jordan radiolysis gas W. Breitung PC excercises on A. Kotchourko PC exercises on thermohydraulics COM3D / J. Yanez GASFLOW 16:30 end end end end 19:00 Get together S. Benz end T. Jordan AREVA Nuclear Professional School

10 Technical issue: limitation loss of coolant with passive valve Reactor Pressure Vessel 1 PhD AREVA Nuclear Professional School (ANPS) Passive Outflow Reducer (POR) POR LOCA scenario Containment 2 Reactor Pressure Vessel POR Emergency core cooling Containment Design evolution from swirl principle to 2-phase choking Objective 1 2 >>1 Passively No moving part Vortex diode design based on swirl Multi-nozzle design based on 2-ph. choking AREVA Nuclear Professional School

11 PhD AREVA Nuclear Professional School (ANPS) Passive Outflow Reducer (POR) Experimental validation at AREVA Technical Center (Karlstein) one channel Result 1 2 up to 70 Passively No moving part CFD analysis (LES) RPV pressure: 70 bar U (m/s) vaporization choking Mach number (Iso-surface void) AREVA Nuclear Professional School

12 Leistung in MW Power in MW Global development of nuclear power plants Generation 2. Generation Druckwasserreaktoren pressurized water reactor Siedewasserreaktoren boiling water reactor Druckröhrenreaktoren pressurized tube reactor development phase Beginn of des operation Leistungsbetriebs consolidation phase Quelle: world nuclear association AREVA Nuclear Professional School

13 Power in MW Global development of nuclear power plants Generation 2. Generation Druckwasserreaktoren pressurized water reactor 1400 Siedewasserreaktoren boiling water reactor pressurized tube reactor Druckröhrenreaktoren 1200 Leistung in MW Three Mile Island 2 Tschernobyl 4 Fukushima Beginn of des operation Leistungsbetriebs Quelle: world nuclear association AREVA Nuclear Professional School

14 Discussion Before Fukushima nuclear field expected to grow rapidly Accidents of old GEN I reactor changed the global view of nuclear completely Damage by strong reaction was much larger than actual damage Risks are not judged based on numbers by the public A major job of universities could be to strengthen rational risk awareness Other technologies also have risks which could lead to overreactions (H2) AREVA Nuclear Professional School