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{{#Wiki_filter:Evaluation of Using MOX Fuel in TVA Reactors 1July 1, 2010Presented by TA KeysNRC Fuel Cycle Information Exchange TVA Nuclear FleetSix operating reactors One reactor under constructionTVA NuclearCombustion Turbine and Green Power 2 Hydro F ossil/CoalBrowns Ferry Units 1, 2, & 3Sequoyah Units 1 & 2Watts Bar Unit 1Unit 2 -Under Construction In the exploratory stage of determining whethertouseMOXfuelinreactorsTVA and MOX Fuel 3 whether to use MOX fuel in reactorsDecision will not occur until 2012 Fresh Fuel IsotopicsIsotopeUranium FuelRecycledfuel MOX FuelRecycled Weapon MOX FuelU-23896%91%95%U-2354%0.25%0.25%Aveassembly 0%9%43%4Ave assembly Pu 0%9%4.3%Pu-2380%1%0%Pu-2390%57%94%Pu-2400%27%5%Pu-2410%8%<1%Pu-2420%7%<<1%
{{#Wiki_filter:Evaluation of Using MOX Fuel in TVA Reactors Presented by TA Keys NRC Fuel Cycle Information Exchange 1
Recycled Fuel MOX Studies 2008 -TVA evaluated potential for using Sequoyah to burnMOX from recycled fuel as part of DOE's GNEP program 52009-TVA evaluated burning MOX from recycled usednuclear fuel in U.S. reactors as part of a qualification plan for using MOX fuel in the U.S.
July 1, 2010
Weapons MOX Background1.Weapons Pu into MOX-DOE decided best way to disposition plutonium is in MOX fuel2.Duke involvement-Demonstration assemblies completed 2 ndcycle at Catawba when excessive growth caused them to be discharged 6-Rods currently under hot cell investigation at ORNL3.TVA has extensive experience with DOE programs-Blended Low Enriched Uranium (BLEU) program
 
-Tritium production program in TVA's Watts Bar reactor4.Use of MOX from weapons must stand on its own for TVA to go forward -also a potential stepping stone to the use of MOX from used fuel Changes Needed PWREnriched boron and related plant system changesBoth PWRs and BWRsSecurit y u pg rades 7ypgEnhanced parking for security vehiclesAdditional security trainingDOE "L"  security clearances for site personnelPlant changes for IAEA monitoringMore secure transport of fuel to the siteEnhanced public communicationTraining on physics of MOX fuel cycle for utility personnel Timeline of Current Initiative 2009-TVA and Shaw/AREVA MOX Services sign a Letter of Intent 2010-TVA and DOE sign an Interagency Agreement 8-TVA contracts with AREVA for BWR fuel cycle study-DOE will issue Notice of Intent to Supplement the EIS (SEIS) on the MOX Program-DOE will hold SEIS scoping meeting seeking public input2011-DOE will complete SEIS with TVA as cooperating agency Considerations ConsAnother issue to manageFuel reliability challenge from uniquemanufacturingfacility ProsFuel cost savings 9 unique manufacturing facilityAdditional coordination with DOE/IAEA/NRCPlant modificationsIncreased security requirementsConsistent with TVA  Act of demonstrating technologyAnother fuel source for TVA reactors MFFF Key MilestonesMOX Fuel Fab Facility (MFFF) At DOE Savannah River SiteStartMFFFconstruction 8/2007 10 Start MFFF construction 8/2007End of construction2015End of cold startup2016Begin hot startup (Pu in plant)2016Complete first 8 MOX fuel assemblies2018 TVA MilestonesBWR fuel cycle and safety analysis studiesOngoingDOE complete SEIS (TVA cooperating agency)2012Determine whether to go forward2012 11If decision is to g o forward,Develop licensing and communications plans2012Develop PWR and BWR plant mods2012LARs to NRC on plant mods 2014Make mods to plants2017-2018Take delivery of first 8 MOX BWR fuel assemblies2018 AREVA MilestonesDevelop Topical Reports for codes and methods to support MOX operation in BWRs and PWRs2010 -2012Submit Topical Reports to NRC:
TVA TVA Nuclear Fleet Six operating reactors Combustion Turbine and                    One reactor under construction Green Power Nuclear Browns Ferry Units 1, 2, & 3 Hydro Fossil/Coal                                Watts Bar Unit 1 Unit 2 -
12COPERNIC3 Fuel Performance Code 2011BWR Fuel Codes & Methods 2012PWR Fuel Codes & Methods 2012 SummaryTVA is evaluating the potential for using down-blended MOX fuel in its nuclear reactors atSequoyahandBrownsFerry 13 at Sequoyah and Browns Ferry.A decision on whether TVA will go forward with MOX fuel is expected in 2012.}}
Under Construction Sequoyah Units 1 & 2 2
 
TVA and MOX Fuel In the exploratory stage of determining whether to use MOX fuel in reactors Decision will not occur until 2012 3
 
Fresh Fuel Isotopics Isotope      Uranium Recycled fuel  Recycled Fuel  MOX Fuel    Weapon MOX Fuel U-238          96%       91%           95%
U-235          4%     0.25%         0.25%
Ave assembly    0%       9%           4 3%
4.3%
Pu Pu-238          0%       1%           0%
Pu-239          0%       57%           94%
Pu-240          0%       27%           5%
Pu-241          0%       8%           <1%
Pu-242          0%       7%         <<1%
4
 
Recycled Fuel MOX Studies 2008 - TVA evaluated potential for using Sequoyah to burn MOX from recycled fuel as part of DOEs GNEP program 2009 - TVA evaluated burning MOX from recycled used nuclear fuel in U.S. reactors as part of a qualification plan for using MOX fuel in the U.S.
5
 
Weapons MOX Background
: 1. Weapons Pu into MOX
      - DOE decided best way to disposition plutonium is in MOX fuel
: 2. Duke involvement
      - Demonstration assemblies completed 2nd cycle at Catawba when excessive growth caused them to be discharged
      - Rods currently under hot cell investigation at ORNL
: 3. TVA has extensive experience with DOE programs
      - Blended Low Enriched Uranium (BLEU) program
      - Tritium production program in TVAs Watts Bar reactor
: 4. Use of MOX from weapons must stand on its own for TVA to go forward - also a potential stepping stone to the use of MOX from used fuel 6
 
Changes Needed PWR Enriched boron and related plant system changes Both PWRs and BWRs Securityy upgrades pg 9  Enhanced parking for security vehicles 9  Additional security training 9  DOE L security clearances for site personnel 9  Plant changes for IAEA monitoring 9  More secure transport of fuel to the site Enhanced public communication Training on physics of MOX fuel cycle for utility personnel 7
 
Timeline of Current Initiative 2009
    - TVA and Shaw/AREVA MOX Services sign a Letter of Intent 2010
    - TVA and DOE sign an Interagency Agreement
    - TVA contracts with AREVA for BWR fuel cycle study
    - DOE will issue Notice of Intent to Supplement the EIS (SEIS) on the MOX Program
    - DOE will hold SEIS scoping meeting seeking public input 2011
    - DOE will complete SEIS with TVA as cooperating agency 8
 
Considerations Cons Pros                Another issue to manage Fuel cost savings        Fuel reliability challenge from unique manufacturing facility Consistent with TVA Act of demonstrating technology    Additional coordination with DOE/IAEA/NRC Another fuel source for TVA reactors             Plant modifications Increased security requirements 9
 
MFFF Key Milestones MOX Fuel Fab Facility (MFFF)
At DOE Savannah River Site Start MFFF construction             8/2007 End of construction                  2015 End of cold startup                  2016 Begin hot startup (Pu in plant)     2016 Complete first 8 MOX fuel assemblies 2018 10
 
TVA Milestones BWR fuel cycle and safety analysis studies      Ongoing DOE complete SEIS (TVA cooperating agency)       2012 Determine whether to go forward                  2012 If decision is to go forward, Develop licensing and communications plans      2012 Develop PWR and BWR plant mods                  2012 LARs to NRC on plant mods                       2014 Make mods to plants                              2017-2018 Take delivery of first 8 MOX BWR fuel assemblies 2018 11
 
AREVA Milestones Develop Topical Reports for codes and methods to support MOX operation in BWRs and PWRs          2010 - 2012 Submit Topical Reports to NRC:
COPERNIC3 Fuel Performance Code                   2011 BWR Fuel Codes & Methods                           2012 PWR Fuel Codes & Methods                           2012 12
 
Summary TVA is evaluating the potential for using down-blended MOX fuel in its nuclear reactors at Sequoyah and Browns Ferry Ferry.
A decision on whether TVA will go forward with MOX fuel is expected in 2012.
13}}

Latest revision as of 16:47, 13 November 2019

Fcix 2010: Evaluation of Using MOX Fuel in TVA Reactors (T Keys)
ML101740637
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Site: Browns Ferry, Watts Bar, Sequoyah  Tennessee Valley Authority icon.png
Issue date: 07/01/2010
From:
Tennessee Valley Authority
To:
Office of Nuclear Material Safety and Safeguards
cxg7, wcm1, tvh1, txr5
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Text

Evaluation of Using MOX Fuel in TVA Reactors Presented by TA Keys NRC Fuel Cycle Information Exchange 1

July 1, 2010

TVA TVA Nuclear Fleet Six operating reactors Combustion Turbine and One reactor under construction Green Power Nuclear Browns Ferry Units 1, 2, & 3 Hydro Fossil/Coal Watts Bar Unit 1 Unit 2 -

Under Construction Sequoyah Units 1 & 2 2

TVA and MOX Fuel In the exploratory stage of determining whether to use MOX fuel in reactors Decision will not occur until 2012 3

Fresh Fuel Isotopics Isotope Uranium Recycled fuel Recycled Fuel MOX Fuel Weapon MOX Fuel U-238 96% 91% 95%

U-235 4% 0.25% 0.25%

Ave assembly 0% 9% 4 3%

4.3%

Pu Pu-238 0% 1% 0%

Pu-239 0% 57% 94%

Pu-240 0% 27% 5%

Pu-241 0% 8% <1%

Pu-242 0% 7% <<1%

4

Recycled Fuel MOX Studies 2008 - TVA evaluated potential for using Sequoyah to burn MOX from recycled fuel as part of DOEs GNEP program 2009 - TVA evaluated burning MOX from recycled used nuclear fuel in U.S. reactors as part of a qualification plan for using MOX fuel in the U.S.

5

Weapons MOX Background

1. Weapons Pu into MOX

- DOE decided best way to disposition plutonium is in MOX fuel

2. Duke involvement

- Demonstration assemblies completed 2nd cycle at Catawba when excessive growth caused them to be discharged

- Rods currently under hot cell investigation at ORNL

3. TVA has extensive experience with DOE programs

- Blended Low Enriched Uranium (BLEU) program

- Tritium production program in TVAs Watts Bar reactor

4. Use of MOX from weapons must stand on its own for TVA to go forward - also a potential stepping stone to the use of MOX from used fuel 6

Changes Needed PWR Enriched boron and related plant system changes Both PWRs and BWRs Securityy upgrades pg 9 Enhanced parking for security vehicles 9 Additional security training 9 DOE L security clearances for site personnel 9 Plant changes for IAEA monitoring 9 More secure transport of fuel to the site Enhanced public communication Training on physics of MOX fuel cycle for utility personnel 7

Timeline of Current Initiative 2009

- TVA and Shaw/AREVA MOX Services sign a Letter of Intent 2010

- TVA and DOE sign an Interagency Agreement

- TVA contracts with AREVA for BWR fuel cycle study

- DOE will issue Notice of Intent to Supplement the EIS (SEIS) on the MOX Program

- DOE will hold SEIS scoping meeting seeking public input 2011

- DOE will complete SEIS with TVA as cooperating agency 8

Considerations Cons Pros Another issue to manage Fuel cost savings Fuel reliability challenge from unique manufacturing facility Consistent with TVA Act of demonstrating technology Additional coordination with DOE/IAEA/NRC Another fuel source for TVA reactors Plant modifications Increased security requirements 9

MFFF Key Milestones MOX Fuel Fab Facility (MFFF)

At DOE Savannah River Site Start MFFF construction 8/2007 End of construction 2015 End of cold startup 2016 Begin hot startup (Pu in plant) 2016 Complete first 8 MOX fuel assemblies 2018 10

TVA Milestones BWR fuel cycle and safety analysis studies Ongoing DOE complete SEIS (TVA cooperating agency) 2012 Determine whether to go forward 2012 If decision is to go forward, Develop licensing and communications plans 2012 Develop PWR and BWR plant mods 2012 LARs to NRC on plant mods 2014 Make mods to plants 2017-2018 Take delivery of first 8 MOX BWR fuel assemblies 2018 11

AREVA Milestones Develop Topical Reports for codes and methods to support MOX operation in BWRs and PWRs 2010 - 2012 Submit Topical Reports to NRC:

COPERNIC3 Fuel Performance Code 2011 BWR Fuel Codes & Methods 2012 PWR Fuel Codes & Methods 2012 12

Summary TVA is evaluating the potential for using down-blended MOX fuel in its nuclear reactors at Sequoyah and Browns Ferry Ferry.

A decision on whether TVA will go forward with MOX fuel is expected in 2012.

13

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