Cross Site Scripting-Latest developments and solutions: A survey
Site Developments at Capenhurstat Capenhurst - IMechEfiles.imeche.org/events/downloads/C1361/5. Will...
Transcript of Site Developments at Capenhurstat Capenhurst - IMechEfiles.imeche.org/events/downloads/C1361/5. Will...
Nuclear Decommissioning 20122012
Site Developments at Capenhurstat Capenhurst
Will VaughanWill VaughanURENCO Compliance Department
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The Nuclear Fuel Supply Chain
In the mining stage specialised plants
Conversion
In the mining stage, specialised plants crush ground and purify content to obtain 100% uranium concentrate: this product is called U3O8 or yellowcake
Mining The U308 is then transformed through several chemical steps. The end results contains at least 99.9% of uranium:
Enrichment
this product is called UF6
The UF6 is then fed into enrichment plants, to augment the concentration of fissile
FuelFabrication
Electricity
to augment the concentration of fissile isotope 235 to assays of 2 to 5%: this product is called EUP or LEU
Th EUP i th t d i t d
Nuclear PowerPlant
Transmission &The EUP is then reconverted into powder and compressed into pellets. In a second step, pellets are inserted into metallic rods and the rods assembled in square or octagonal grids to fit a reactor core design:
Distribution
2URENCO Proprietary
g g gthis product is called a fuel assembly
Nuclear Decommissioning 201228 June 2012 - Will Vaughan, UUK
URENCO LocationsA Global PresenceA Global Presence
UUKC h t UKUUKCapenhurst UK
UNLAlmelo, NLUNLAlmelo, NL
UL/UEC LtdStoke Poges, UKUL/UEC LtdStoke Poges, UK
Capenhurst, UKCapenhurst, UKUDGronau, DUDGronau, D
UUSAUUSAURENCO, IncArlington, USAURENCO, IncArlington, USA
Eunice, NM, USAEunice, NM, USA
Operating centrifuge plantOperating centrifuge plant
OfficesOffices
5,000Capenhurst400Eunice
14,600Group capacity end 2011 (tSW)
5,000Capenhurst400Eunice
14,600Group capacity end 2011 (tSW)
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4,200Gronau5,000Almelo4,200Gronau5,000Almelo
URENCO UK Ltd (UUK)Capenhurst ChesterCapenhurst, Chester
4Nuclear Decommissioning 201228 June 2012 - Will Vaughan, UUK
Nuclear Generating Capacity Regional BreakdownRegional Breakdown
GWe Gross WNA 2011 Reference Scenario
600
700Americas Europe Asia Russia & Eastern Europe Other
3
3% of total capacity
10
5001
2
11
11
44
300
400
29
10
3639
44
200 30 2522 20
0
10030 26 25 23
5
02010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030
Nuclear Decommissioning 201228 June 2012 - Will Vaughan, UUK
Capacity Build-Up
20000 tSW
16000
18000
10000
12000
14000
6000
8000
10000
2000
4000
01975 1980 1985 1990 1995 2000 2005 2010 2011 2015
Capenhurst (UK) Almelo (Netherlands) Gronau (Germany) Eunice (USA) Planned
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URENCO Group commits to expand its capacity to meet customer demand
Nuclear Decommissioning 201228 June 2012 - Will Vaughan, UUK
What does it all mean?
• Greater capacity requirements• Greater capacity requirements• Constraints on our existing sites require us to address
our legacy (tails management) nowour legacy (tails management) now • Third party service providers may be unreliable and their
costs can not be controlledcosts can not be controlled• Tougher market conditions require URENCO to consider
broadening our service offering through range and g g g gvolume
• Land, facilities and expertise in new work areas are required to support the business long-term
Nuclear Decommissioning 201228 June 2012 - Will Vaughan, UUK
Tails Management
• Tails (depleted uranium by product) is still considered a• Tails (depleted uranium by-product) is still considered a valuable asset (potential for re-enrichment)• Current management of tails is by storage on site or conversionCurrent management of tails is by storage on site or conversion
off site (Russia / France) to a safer compound• Storage of tails as UF6 has chemotoxic risks, therefore is
d i bl i th l tundesirable in the long term
2008 URENCO Chemplants formed• 2008 - URENCO Chemplants formed• Deliver a new Tails Management Facility to URENCO group for
safe, sustainable deconversion & storage, g
Nuclear Decommissioning 201228 June 2012 - Will Vaughan, UUK
Tails Management
• 2 kilns & facilities to deconvert c10,000 tonnes / year to U OU3O8• Cylinder Handling Facility• Tails Deconversion Plant• Cylinder Wash Facility• Residue Recovery Facility• Uranium Oxide Store • Decontamination & Maintenance Facility
Nuclear Decommissioning 201228 June 2012 - Will Vaughan, UUK
Tails Management
• Allows long-term continued operation of the URENCO sites, with controllable tails management costs and reduced chemo-toxic hazard
• Potential for Hydrogen Fluoride sales
• A new venture for the group – top tier COMAH chemical plant
• Operational by Dec 2015• ~60 employees
UUK li• UUK licensee
Nuclear Decommissioning 201228 June 2012 - Will Vaughan, UUK
Addressing the site legacy
• c40% of the Capenhurst site is NDA owned and operated• c40% of the Capenhurst site is NDA-owned and operated by Sellafield Limited:• Decommissioning and clearance of the nuclear legacy• Uranic storage
I• Issues:• Large UF6 inventory, old containers• Some legacy issues at Capenhurst are lower in NDA’s prioritiesSome legacy issues at Capenhurst are lower in NDAs priorities
• 2011 Capenhurst Nuclear Services formedp• Deliver a package of work to the NDA on behalf of URENCO• ~45 employees
Nuclear Decommissioning 201228 June 2012 - Will Vaughan, UUK
Addressing the site legacy
• CNS synergies with UUK and with UCPCNS synergies with UUK and with UCP• Management of UF6• Waste management• Site managementSite management• Legacy cylinder washing
• 2012 it is planned that the site will be re-licensed into a single2012 it is planned that the site will be re licensed into a single Nuclear Site Licence held by UUK with UCP, CNS & others as tenant organisations, responsible for their own operations
• CNS will:• Wash legacy UF6 cylinders• MDU & UF6 Receipts6 p• Residue Reprocessing• Waste Packaging & Disposal• Store Uranium
Nuclear Decommissioning 201228 June 2012 - Will Vaughan, UUK
URENCO’s view
• Land available to the group for:• Land available to the group for:• Recycling centre• Future enrichment capacityFuture enrichment capacity• Other investment opportunities for Capenhurst to support the site
and the industry
• Greater opportunity for infrastructure improvement• Electrical distribution• Effluent management
Nuclear Decommissioning 201228 June 2012 - Will Vaughan, UUK
Addressing the site legacy
• CNS will develop a Legacy Cylinder Facility to:• CNS will develop a Legacy Cylinder Facility to:• Decant UF6 out of older type cylinders into modern, type 48Y cylinders
capable of being transported or fed into the UCP operated TMF• Cylinder washing, decontamination, uranic reside management, waste
management
• Benefits of Site Integration• Single NSL• Diversification of skills• Diversification of skills• Sharing of experience• Reduced costs• Environmental improvements• …benefits to the tax payer
Nuclear Decommissioning 201228 June 2012 - Will Vaughan, UUK