inpp workshop on reactor dismantlingworkshop on reactor dismantling inpp, ignalina, 8 th november...
TRANSCRIPT
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INPP Workshop on Reactor Dismantling
Jörg Viermann, GNS Gesellschaft für Nuklear-Service mbH
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Competence for Nuclear ServicesA medium-sized company founded in 1974,based in Essen/Germany.
Competence Centre of the German utilities forthe management of spent fuel and all nuclearwastes (HLW/ILW/LLW) from the operation andthe dismantling of the German power plants
Worldwide operations :
• as one of the leading manufacturers of casks for ILW (MOSAIK®) and spent fuel/HLW (CASTOR®, CONSTOR®)
• for processing of every kind of radioactive waste, decommissioning and related engineering services
GNS Gesellschaft für Nuklear-Service mbH
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The Role of GNS in Germany
We take care of …(i.e. Competence and Responsibility of GNS)
Spent Fuel and HLW
Operational and Decommissioning Waste (LLW/ILW)
Packaging, Loading, Transport
Responsibility of the Federal Republic of Germany
Treatment, Packaging, Transport
RepositoryKonrad
RepositoryHLW/SF
Interim StorageHLW/SF
Interim StorageLLW/ILW
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History of GNS
1974 1977 1980 1988 1989/90
Formation of GNT Gesellschaft für Nukleartransporte
Re-naming to GNS Gesellschaft für Nuklear-Service mbH
Busines Area „Nuclear Casks“
established
Business Area„Nuclear Waste Management“
established
Activities from DWK taken over
(incl. Ahaus and Gorleben interim storage facilities)
Beginning ofCASTOR®
development
Development ofAVK-System
Dedicated to nuclear services for four decades!
1979
Formation of WTI
First licence for the GNS conditioning site at Duisburg
1985
Interim Storage Activitiestransferred to the State
2017
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Shareholders of GNS
28 % 18,5 %*5,5 %
48%
* Südwestdeutsche Nuklear-Entsorgungs-Gesellschaft mbH
(EnBW Kraftwerke AG,PreussenElektra GmbH)
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The Company
Jülich- Conditioning and packaging of solid LLW
Headquarters Essen- Corporate Functions- Project Management and Controlling- Development of Casks and Equipment
Duisburg (until 2018)
- Free release- Conditioning and packaging of solid LLW
Mülheim- Cask assembly (SF, HLW, ILW)- Training and Test Facility
Turn over > 250 Mio. EuroEmployees approx. 450
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Management of nuclear waste from operations anddismantling of nuclear power plants (ILW/LLW)
Management of spent fuel as well as ILW and HLW from the reprocessing of German spent fuel abroad
Casks for transport and storage of spent fuel andnuclear waste (HLW/ILW)
Consulting, engineering and equipment
Preparations for final disposal
Competence Areas of GNS
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Conditioning of operational and decommissioningwastes in GNS-owned facilities
Deployment of GNS-owned mobile facilities to thecustomers site
Realisation of waste treatment campaigns in cooperation with external partners
Development and distribution of tailored disposalsolutions
Operation and maintenance of the German wastetracking and documentation system (AVK)
Management and Treatment of Wastes and Residues
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GNS Equipment for Waste Treatment
Aim: Packaging for final disposalMeasures: Volume reduction, drying/solidification
for solid waste- supercompactor FAKIR- drying facilities PETRA and KETRA
for liquid waste- solidification facility FAVORIT
for resins- conditioning facilities PUSA and FAFNIR
for core components- GNS underwater scrap shears
FAKIR
PETRA
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Management of Spent Fuel and HLW
Casks for spent fuel and HLW
Cask Service
Retrieval of German waste fromreprocessing abroad
Engineering and equipment
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GNS Casks for Spent Fuel, HLW and ILW
CASTOR® CONSTOR®
Transport and Interim Storage- Spent Fuel- HLW- Up to 56 kW heat load
Transport and Interim Storage- Spent Fuel- Up to about 25 kW heat load
MOSAIK®
Transport, Interim Storage andFinal Disposal of ILW
Monolithic cask bodymade of ductile castiron
Bolted double lidsystem
Pressure monitoring
Interior neutronmoderator
Machined cooling fins
Monolithic cask bodymade of ductile castiron
Bolted lid system
Different lid systemsand wall thicknesses
Optional lead insertsand filter inserts
Sandwich cask body
Welded steel plates withheadring made of forgedsteel
Filling with CONSTORIT
Welded and bolted lidsystem
Welded-on cooling fins
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GNS Casks Worldwide
GNS has already developed and manufactured well over 1500 casks for High Level Waste and Spent Fuel.
As of July 2018
Casks loaded and in interim storage:Germany 1206Lithuania (Ignalina) 177Czech Republic (Dukovany, Temelin) 119USA (e.g. Surry) 35Bulgaria (Kozloduy) 13Switzerland 12Belgium 7South Africa 4
Additional casks delivered to:Finland, France, the Netherlands, Russia, Korea
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GNS Waste Treatment Facilities and Equipment
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Waste Treatment Facilities and Equipment
Portfolio
Waste Treatment Facilities for Solid Waste
• Hydraulic Compactors• Supercompactors
1200 – 2000 t • In-Drum-
Compactors
• Vacuum Drying Facilities• Type KETRA• Type PETRA• Heating Systems
Waste Treatment Facilitiesfor Liquid Waste
• Vacuum Drying Facilities
• Type FAVORIT• Type PETRA
• Resin-Filling Facilities
• Type PUSA• Type FAFNIR
Equipment
• Quivers and Equipment forDamaged Fuel Rods
• Cask-Handling Equipment
• Recooling Equipment
• Grapples for Pellets, Drums, Casks etc.
Project Management
• Consulting• Project Management
• Certified IPMA-Projectmanager
Engineering Services
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In-Drum drying facilities for liquid waste
Baujahr: 2018
Projektstatus: Detailplanung
Leistungsumfang GNS: Entwicklung, Fertigung, Montage und Inbetriebnahme
Abfallstrom: Verdampferkonzentrate
Prozesssteckbrief: Vakuumtrocknung in 200-l-Fässern
In-drum drying facility for 200-l drums4 Leg In-Drum Drying Facility for Evaporator Concentrate incl. Infrastructure
Year of Manufacture: 2018 Scope of GNS Supply: Development, Design, Assembly, Commissioning and TrainingWaste Stream: Evaporator ConcentrateProcess in brief: Vacuum Drying in 200-l-Drums with Heating Jackets
Overhead crane
Outrigger
Vakuum unit
Shielded Drum Heating
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Drying cabinets for solid waste
Year of Manufacture: 2018 Leistungsumfang GNS: Entwicklung, Fertigung, Montage und Inbetriebnahme
Abfallstrom: Mischabfälle
Prozesssteckbrief: Vakuumtrocknung von Mischabfällen in 200-l-Fässern
Drying chambers for 200-l and 400-l-drumsDrying chambers for 200-l- and 400-l-Drums
Year of Manufacture: 2018 Scope of GNS Supply: Development, Design, Assembly, Commissioning and TrainingWaste Stream: Pellets, Mixed Waste, SludgeProcess in brief: Vacuum Drying in 200-l- and 400-l-Drums with Heating Cabinets
Vakuum unit
Drying cabinet
Control panel
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Drying cabinets for solid waste
Seven Modular Vacuum Drying Kits including Infrastructure
Year of Manufacture: 2013 Scope of GNS Supply: Development, Manufacture, Assembly and CommissioningStatus: In operation Waste Stream: Pellets, Mixed Waste, Sludge (400-l-Drums also possible)
Process in brief: Vacuum Drying in 200-l-Drums with Heating Cabinets
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Waste Treatment Facilities for Solid Waste
Vacuum Drying Facility Type PETRA for the Treatment Centre Saida (Сайда Губа) / Murmansk, Russia
Year of Manufacture: 2012 Scope of GNS Supply: Development, Manufacture, Certification, Assembly and CommissioningStatus: In operation Waste Stream: Pellets, Mixed Waste, Sludge (400-l-Drums also possible)
Process in brief: Vacuum Drying in 200-l-Drums with Heating Cabinets
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Waste Treatment Facilities for Liquid Waste
Eight Leg In-Drum Drying Facility for Evaporator Concentrate incl. Infrastructure
Year of Manufacture: 2012 Scope of GNS Supply: Development, Design, Assembly and CommissioningStatus: In operation Waste Stream: Evaporator Concentrate
Process in brief: Vacuum Drying in 200-l-Drums with Heating Jackets
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Equipment for Casks
Equipment for casks
Year of Manufacture: For more Scope of GNS Supply: Development, Design and Manufacturethan 40 years Dimensioning and Design according to KTA Regulations
e.g. Handling Equipment for GNS Casks, Recooling Equipment, Pellet Grapple
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Project Management
Engineering Services
Quality Management
Development and
DimensioningDesign Manufacture Programming
Risk Assessment
P&I Diagrams,Process Flow Diagrams
Process Development
Engineering Data
KTA Survey Documents
PLC Programming andData Acquisition Modules
PLC Updating
CE Conformity Procedure
Operation and Maintenance Manuals
Licensing Procedures
Spare Parts ServiceWork and Test Sequence Plans
Docu-mentation
Commis-sioning Maintenance
In-Service Inspections
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D&D of RPV Internals and RPV
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Nuclear Power Station Decommissioning in Germany
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Nuclear Power Stations in Germany
7 reactors in operation
1 in safe enclosure
19 under decommissioning
2 completely dismantled(but storage facilityremaining)
Stade
Unterweser
Würgassen Grohnde
Hannover
Grafen-rheinfeld
Isar I und II
Stade
Unterweser
Brunsbüttel
Grohnde
Grafen-rheinfeld
Isar I und II
Brokdorf
Krümmel
Lingen/Emsland
Biblis
Philipsburg Obrigheim
Gundremmingen
Rheinsberg
Greifswald
Neckarwestheim
Mülheim-Kärlich
Würgassen
Hamm-Uentrop
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Current GNS Projects
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EnBW PO
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PO for RPV internals and RPVfrom Philippsburg andNeckarwestheim receivedJuly 2015
Neckarwestheim (PWR)• Planning phase 20 months
• Start of on-site work April 2017
• Upper core plate fully segmentedSeptember 2017
Philippsburg (BWR)• Planning phase 27 months
• Start of on-site work October 2017
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Projects at Philippsburg andNeckarwestheim power stations
Lifting tools and baskets forcuboidal or cylindrical containers
Shielded bell
Handling of Parts from RPV Segmentation
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ActiAtlas®: A new tool to reduce conservativity ofactivity calculations
Based on Monte Carlo method andactivation calculations
Reduces overestimation of activitycompared to conventional methods
Better planning of necessary containersand shielding
Verification by measurements andanalyses of samples
reduced waste packagevolume
Radiological Modelling of RPV and Internals
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Comparison between measured and calculated γ-dose rate (PWR), measurement inside RPV without fuel assembliesMatch between calculationC/M = 2 .. 3 along theactivated zone (similar forPWR and BWR reactors)
Validation by Dose Rate Measurements
water
Measurement 1Calculation 1Measurement 2Calculation 2
Dos
e ra
te
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ActiAtlas® can be used to calculate activities in all areas ofnuclear installations.
Further information that can be taken into account:• Structural analysis
• Space restrictions (e.g. accessibility for heavy machines)
ActiAtlas® can be used to verify compliance with clearance limits
Wide Area of Use
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Disposal routes
Application of Calculated Activities
data:• Activity/radinuclide
inventory• Weight & Dimensions• Product quality (repository)
www.siempelkamp.com
Determination of disposal route
Development of a packaging concept
(Transport, Interim Storage & Disposal)
Melting and recycling(e.g. for MOSAIK® casks or
shielding blocks)
Release of radioactive substances
( 29 StrlSchV / RP 122 / RP 95)
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Upper Core Plate Segmentation
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Segmentation and Packaging
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Baskets for Konrad Containers
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MOSAIK® Casks for Higher Activated Components
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PreussenElektra Fleet PO
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Containers
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Customer-Specific Package Development
MOSAIK® II-15 U EI MOSAIK® II-15 EI
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GNS Yellow Box Data sheet
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New Container: SBoX®
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SBoX® Drop Test
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SBoX® Product Presentation
• More flexibility, better cost efficiency
• Welded steel container• Same outer dimensions as
GNS Yellow Box®
(storage compatibility!)• Two lid arrangements
(round and rectangular)• IP-2 certified package,
tested to 9m drop height• Optional internal heating to
accelerate drying
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Major advantages of internal heating system• Drying process considerably shorter, higher heating temperature
possible (if necessary >250°C)• GNS SBoX® with inner heater system can be handled much quicker
after drying process, due to massive reduction of cool-down time• Less space required (3.2m² vs. 8.5 m²)
Major advantages of GNS SBoX® (compared to GNS Yellow Box®)
• New surface coating (Less prone to mechanical damages / spalling), easier to repair (no brush marks)
• Available with or without internal heating system • Larger lid opening available• Lower empty weight, higher payload• Price
SBoX® Advantages
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Graphite Pre-Tests
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SBoX® Graphite Tests
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