Didier De Bruyn & Rafaël Fernandez (SCK•CEN),Luigi Mansani (Ansaldo), Antony Woaye-Hune (AREVA),
Massimo Sarotto (ENEA) & Evaldas Bubelis (KIT)
ICAPP’12 ConferenceChicago, 24-28 June 2012
Copyright © 2012
SCK•CEN 1
The fast-spectrum transmutation experimental facility FASTEF: main design achievements (part 1: Core &
Primary system) within the FP7-CDT collaborative project of the European Commission
Table of contents
Purpose of the MYRRHA project at SCK•CENPlace of FP7 CDT project in this frameConclusions of WP2 related to primary system Illustrations of design todayWay ahead to construction
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Fission generates High-Level Nuclear Waste
U235
nPu Np Am Cm
Actinides Minor Actinides
Neutron
Uranium Fission
Fuel
U238
n
n
n
U235
U238
Plutonium Neptunium Americium Curium
Minor Actinides
high radiotoxicity long lived wastethat are difficult to store due to:
Long lived (>1,000 years)
Highly radiotoxic
Heat emitting
spent fuel reprocessing
no reprocessing
Uraniumnaturel
Time (years)
Rel
ativ
e ra
dio
toxi
city transmutation
of spent fuel
Duration Reduction 1.000x
Volume Reduction 100x
Motivation for Transmutation
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Reactor• Subcritical mode• 65 to 100 MWth
Accelerator(600 MeV - 4 mA proton)
FastNeutronSource
Spallation Source
Lead-Bismuthcoolant
MultipurposeFlexible
IrradiationFacility
MYRRHA is an Accelerator Driven System
Innovative & Unique
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Continuity: SCK•CEN has a long tradition of «first of a kind»
Inventor of innovative nuclear
fuel (MOX fuel)
1st pressurized water reactor (PWR)
outside of US (BR3)
World first underground laboratory for R&D on HL waste disposal (HADES)
World premiere project for transmutation of
nuclear waste
Highest performing material testing reactor
in Europe (BR2)
World firstlead based ADS(GUINEVERE)
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ALLEGROExperimental reactor
(GFR)
ASTRID Prototype
(SFR)
2008 2012 2020
SFR
Supporting infrastructures, research facilities
MYRRHAETPP European
demonstration reactor (LFR)
Reference technology
Alternative technology
LFR
GFR
The place of MYRRHA in ESNIIEuropean Sustainable Nuclear Industrial Initiative
MYRRHAFast spectrum
irradiation facility
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Table of contents
Purpose of the MYRRHA project at SCK•CENPlace of FP7 CDT project in this frameConclusions of WP2 related to primary system Illustrations of design todayWay ahead to construction
9
The CDT project aimed at going further:
Starting from the outcome of different FP projects (PDS-XADS, EUROTRANS) and national initiatives (MYRRHA),
Obtain a more advanced design of a flexible irradiation facility, FASTEF, able to work in both sub-critical and critical mode,
Setting also up a centralised multi-disciplinary team, based at Mol for its core group,
Concentrating on primary and core systems (this paper) and on reactor building design & plant layout (other paper – session 9.05),
The project started in April 2009 for a duration of 36 months.
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Table of contents
Purpose of the MYRRHA project at SCK•CENPlace of FP7 CDT project in this frameConclusions of WP2 related to primary
system Illustrations of design todayWay ahead to construction
11
FASTEF is a performing, rubust facility
Maximum core power amounts 100 MWth;High fast flux intensity obtained by maximizing
poxer density;Many positions available in the core to host
experiments;All components in reactor vessel designed to be
removable;Diaphragm separates hot and cold coolant;Safety analyses demonstrate robustness against
transients.
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Table of contents
Purpose of the MYRRHA project at SCK•CENPlace of FP7 CDT project in this frameConclusions of WP2 related to primary system Illustrations of design todayWay ahead to construction
13
Reactor Vessel Reactor Cover Core Support Structure
Core Barrel Core Support Plate Jacket
Core Reflector Assemblies Dummy Assemblies Fuel Assemblies
Spallation Target Assembly and Beam Line Above Core Structure
Core Plug Multifunctional Channels Core Restraint System
Control Rods, Safety Rods, Mo-99 production units Primary Heat Exchangers Primary Pumps Si-doping Facility Diaphragm
IVFS IVFHS
IVFHM
Reactor layout
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Reactor Vessel
Main dimensionsHeight: about 12.200 mInner diameter: 8 mWall thickness: 80 mm
MaterialAISI 316L
WeightAbout 320 ton
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Reactor Cover
Main dimensionsHeight: 2 mOuter diameter: 9.3 m
MaterialAISI 316LConcrete
WeightAbout 340 ton
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Diaphragm
Main dimensionsDouble plate designBaffleIn-vessel fuel storageHeight: about 9.8 mInner diameter: 7.7 mWall thickness: 50 mmLower plate thickness: 80 mmUpper plate thickness: 50 mm
MaterialAISI 316L
WeightAbout 190 ton
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Table of contents
Purpose of the MYRRHA project at SCK•CENPlace of FP7 CDT project in this frameConclusions of WP2 related to primary system Illustrations of design todayWay ahead to construction
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The project schedule
2010 – 2014: Front End Engineering Design; file for the Belgian Government
2015: Tendering & Procurement2016 – 2018: Civil Engineering & construction of
components2019: On site assembly2020 – 2022: Commissioning at progressive
power2023: Progressive start-up2024 – 20??: Full exploitation
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Copyright notice
Copyright © 2012 - SCKCEN
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