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© 2013 Organisation for Economic Co-operation and Development
Update on OECD/NEA Activities for
Reactor Fuel Performance and Related
Activities
Akifumi YAMAJI
OECD/NEA Data Bank
Presentation to TWG-FPT
April 2013, IAEA headquarters, Vienna
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© 2013 Organisation for Economic Co-operation and Development
Overview
• Overview of NEA Activities on Reactor Fuels
• Works on Reactor Fuel Performance
– Expert Group on Reactor Fuel Performance (EGRFP)
– International Fuel Performance Experiments (IFPE)
database
• Other Related Activities
– Expert Group on Innovative Fuels (EGIF)
– Expert Group on Multi-scale Modelling of Fuels (M2F)
– Working Group on Fuel Safety (WGFS)
– OECD Workshop on Accident Tolerant Fuel (Dec. 2012)
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© 2013 Organisation for Economic Co-operation and Development
Expert Group on Reactor Fuel Performance (EGRFP)
NEA Activities on Reactor Fuels
Working Group on Fuel Safety (WGFS)
International Fuel Performance Experiments (IFPE) database
Expert Group on Innovative Fuels (EGIF)
Expert Group on Multi-scale Modelling of Fuels (M2F)
IAEA/FUMEX
HRP
© 2013 Organisation for Economic Co-operation and Development
Expert Group on Reactor Fuel Performance
(EGRFP) • Created in 2011 under the guidance of the NSC Working
Party on Scientific Issues of Reactor Systems (WPRS)
• Chair: L. J. Ott (ORNL)
• Secretary: A. Yamaji (NEA)
Objectives
• To provide expert advice on the development needs (data
and methods, validation experiments, scenario studies) for
existing and future fuel designs
• To provide specific technical information regarding:
– National / international programmes, experimental capabilities
– The provision of experimental data for model development and
validation from the IFPE Database
– Methods for code verification 4
© 2013 Organisation for Economic Co-operation and Development
EGRFP: Key Activities & Deliverables
(Revised 2013-2015) • Identification and preservation of appropriate experimental
data (currently focusing on LWR fuels)
– State of the art report “Experimental Data Requirements
for Fuel Performance Modelling” (in draft)
• Review & development of IFPE database
• Update to “Turnbull report” (Review of Nuclear Fuel Experimental Data, 1995)
– Collaborations with IAEA/FUMEX programmes and post-
FUMEX programmes
– Power/temperature benchmark being initiated using
Halden Reactor data (supported by J. C. Killeen)
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© 2013 Organisation for Economic Co-operation and Development
EGRFP Contribution to LWR Uncertainty Analysis
Benchmarks WPRS
Expert Group
on Reactor
Fuel
Performance
(EGRFP)
Expert Group on
Reactor Physics
and Advanced
Nuclear Systems
(EGRPANS)
Expert Group on
Radiation
Transport and
Shielding
(EGRTS)
Expert Group on
Uncertainty
Analysis in
Modelling
(EGUAM)
IFPE
database
International
Reactor Physics
Experiments
(IRPhE) database
International
Radiation Shielding
Experiments
database (SINBAD*)
* SINBAD is developed in cooperation with RSICC
• UAM-LWR Benchmark, Exercise II-1 – Fuel Modelling: Fuel thermal properties relevant to steady-state and transient performance
U-4 (uncertainties in fuel temperature – Doppler feedback)
IFA-429,
IFA-432
© 2013 Organisation for Economic Co-operation and Development
EGRFP: Meetings
• Third Expert Group meeting (Feb. 2013, NEA, Paris)
– attended by 15 experts from 8 countries (Belgium,
Czech Rep, France, Poland, Japan, Russia, UK, USA)
and 4 international organisations (EC/ITU, IAEA,
OECD/Halden, WNA).
• Next meeting: February 2014 at NEA (Paris) in conjunction
with WPRS meeting (date to be determined)
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© 2013 Organisation for Economic Co-operation and Development
Expert Group on Innovative Fuels (EGIF)
• Under the guidance of the NSC Working Party on
Scientific Issues of the Fuel Cycle (WPFC)
• Chair: N. Chauvin (CEA, France)
• Secretary: S. Cornet (NEA)
Objectives &Scope
- Technical issues associated with the development of innovative
fuels and clad materials for use in advanced fuel cycles.
- Fuel of interest: homogeneous and heterogeneous minor actinide
(MA) bearing fuels in different form (oxide, nitride, metal, carbide,
etc)
- Covers technical issues related to: fabrication techniques, irradiation
performance, post irradiation examinations, predictive models/codes
for fabrication and performance
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© 2013 Organisation for Economic Co-operation and Development
EGIF activities and deliverables
• Activities
- Compile an experimental database
- Qualify methodologies
- Perform code-to-code, code-to-experiment benchmark studies
- Generate status reports on various fuel technologies
- Benchmark on fuel performance and fabrication codes, experimental
benchmark and phenomenological tests to compare characterisation
and PIE techniques and results
• Deliverables
- State of the art report on Innovative Fuels
- Benchmark on fuel performance codes and experiments for MA
bearing fuels (ATR, Phenix, HFR, Halden, etc )
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© 2013 Organisation for Economic Co-operation and Development
Expert Group on Multi-scale Modelling of
Fuels (M2F)
• Under the guidance of the NSC Working Party on Multi-
scale Modelling of Fuels and Structural Materials for Nuclear
Systems (WPMM)
• Co-chairs:T. M. Besmann (ORNL, USA), C. Valot (CEA,
France)
• Secretary: S. Massara (NEA)
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© 2013 Organisation for Economic Co-operation and Development
M2F Objectives & Scope: Establishing the state-of-the-art of the application of multi-scale modelling methods for nuclear fuels, with the aim of better understanding the fuel behaviour at atomistic and macroscopic scale.
• Status of modelling of
selected classes of
phenomena relevant to
nuclear fuel behaviour
• Description of the
techniques used to
obtain the material
properties necessary to
describe the physical
phenomena
• Principles and
limitations of each
modelling technique
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© 2013 Organisation for Economic Co-operation and Development
Working Group on Fuel Safety (WGFS)
• Under the guidance of Committee on the Safety of
Nuclea Installations (CSNI)
• Chair: M. Petit (IRSN)
• Vice-Chair: W. Wiesenack (HRP)
• Secretary: R. Rehacek (NEA)
• Activities of the WGFS cover the following topics:
– Loss of Coolant Accidents (LOCA)
– Reactivity Initiated Accidents (RIA)
– Fuel Safety Criteria
– Leaking fuel impacts and practices
– Fukushima related topics
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© 2013 Organisation for Economic Co-operation and Development
OECD Workshop on Accident Tolerant Fuel
(Dec. 2012)
• Aiming to analyse design requirements and potential
options, defining matrices, and identifying the key elements
for future collaborations:
– Innovative cladding materials and fuel matrices allowing to strongly
enhance the grace time in a prolonged loss of coolant / loss of heat
sink accident
– 55 participants from 16 countries
– 4 sessions, 26 technical presentations and 2 breakout sessions (on
safety and technological issues) describing the current on-going
activities and requirements for new materials in this domain
– Follow-up activity will be defined in a meeting scheduled for late
2013, including the synergies to be established with advanced multi-
scale modelling techniques of WPMM
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© 2013 Organisation for Economic Co-operation and Development
Thank you for your attention. Working Party on Scientific Issues of Reactor Systems
WPRS website:
http://www.oecd-nea.org/science/wprs/index.html
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