experiences and lessons learned: jose cabrera npp · experiences and lessons learned: jose cabrera...
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Experiences and lessons learned: Jose Cabrera NPP
Decommissioning Project
Supporting European Expertise in Nuclear
Decommissioning
23rd January 2018
José Cabrera NPP Dismantling Project
General Information - Enresa
State OWNED Company - RD 1984
Duties:
• Management of radioactive wastes
• Decommissioning of Nuclear
Installations
Framework:
Responsible for managing funds and liabilities,
in accordance with a periodical modification of
the ‘General Radioactive Waste Plan’ approved
by the Government
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José Cabrera NPP Dismantling Project
DECOMMISSIONIG PROJECTS IN
SPAIN
Madrid. PIMIC (CIEMAT)
-Duration: 2006-2017
-Reactor type: Research Reactor &
reprocessing facilities
-Status: Site Restoration
Madrid
Guadalajara
Tarragona
Tarragona. VANDELLOS 1 NPP
-Duration: 1998-2003
-Reactor type: GCR
-E. Power: 460 MWe
-Status: On dormancy
Guadalajara. JOSE CABRERA NPP
(ZORITA)
-Duration: 2010-2019
-Reactor type: PWR
-E. Power: 160 MWe
-Status: Dismantling
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DECOMMISSIONING PROJECTS
José Cabrera NPP Dismantling Project
Jose Cabrera NPP: First complete dismantling in Spain
• PWR (160 MW)
• 37 years in Operation.
• 2006: definitive shutdown.
• 2006-2009: Transition period.
• 2010: Start of execution of
decommissioning project .
José Cabrera NPP Dismantling Project
DECOMMISSIONING SCHEDULE
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10 YEARS PROGRAMME
Activities 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
PREPARATORY
ACTIVITIES
System Discharge
System modifications
Auxiliary Facilities
CONVENTIONAL
DISMANTLING
RADIOLOGICAL
DISMANTLING
Large components
Other components
DECONTAMINATION AND
DEMOLITION
MATERIAL MANAGEMENT
SITE RESTORATION
80% progress
José Cabrera NPP Dismantling Project
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REACTOR INTERNALS-VESSEL SEGMENTATION
Underwater segmentation with mechanical tools
José Cabrera NPP Dismantling Project
ISFSI JC NPP: Internals
4 HI-SAFE casks
CABRIL: Internals: 8 CE-2b
Vessel: 21 CE-2b
PRIMARY WASTES REPOSITORIES
STRATEGIES FOR WASTE MANAGEMENT
José Cabrera NPP Dismantling Project
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Lessons learned
1. Effective for Cutting complex Geometry
2. Slower than others, BUT:
1. Easy Implementation
2. Low Rad Operational Impact
3. Minimization of Secondary Waste
3. Characterization of rad waste
4. Preparatory & Final Works
1. Visibility
2. Cavities conditioning
3. Final cleaning
Internals & RPV – Segmentation Works
José Cabrera NPP Dismantling Project
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REMOVAL OF ACTIVATED CONCRETE
José Cabrera NPP Dismantling Project
SURFACE CHARACTERIZATION
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José Cabrera NPP Dismantling Project
RADIOACTIVE WASTE MANAGEMENT: DECONTAMINATION
WORKSHOP
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José Cabrera NPP Dismantling Project
SOIL WASHING PLANT
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Location
José Cabrera NPP Dismantling Project
CHARACTERIZATION EQUIPMENT FOR SITE RELEASE
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José Cabrera NPP Dismantling Project
• Dismantling of Primary Circuit Components.
• Segmentation technologies
• Management of activated elements
• Adaption of proven technologies to
decommissioning requirements.
• Thermal cutting / Cold cutting
• Robotics / Drones
• Material Management.
• Optimization / waste volume reduction
• Site Remediation.
• Characterization of the site
• Soil treatments
FINAL THOUGHTS
José Cabrera NPP Dismantling Project
Strategies for Waste Management (large components)
Refurbishment of former Turbine Hall as Decommissioning Auxiliary Building
• Conditioning of rad. waste from segmentation activities.
• Temporary storage of disposal units.
José Cabrera NPP Dismantling Project
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DECONTAMINATION OF BUILDINGS AND REMOVAL OF EMBEDDED ELEMENTS