ML100980004
| ML100980004 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 04/07/2010 |
| From: | Geyer E, Murray B, Siphers J, Thomas R Progress Energy Co |
| To: | Office of Nuclear Reactor Regulation |
| Saba F, NRR/DORL/LPL2-2, 301-415-1447 | |
| Shared Package | |
| ML100980003 | List: |
| References | |
| Download: ML100980004 (18) | |
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- Introduction and objectives
- ATRIUM 10XM (A10XM) fuel design overview
- Supporting license amendment requests
- Schedule
- Questions, answers, feedback l'.
2
~ Progress Energy
- AREVA fuel and methods approved for BSEP Mar 2008
- NRC-BSEP MELLLA+/A10XM meeting Aug 2009
- BSEP proposed A10XM based MELLLA+ sample problem
- NRC feedback: LAR supporting A1OXM must be approved prior to MELLLA+ LAR acceptance review
- BSEP decision: Implement A1OXM prior to MELLLA+
- A 1OXM COLR limits calculated with two new NRC approved methodologies
- BAW-10247PA RODEX4 mechanical methodology (approved Feb 2008)
- ANP-1 0298PA ACE/A1OXM CPR correlation (approved Mar 2010)
~ Progress Energy 3
- BSEP core/cycle characteristics
- 24 month cycles
- Conventional core loading
- BWRl4 D-Lattice
- Spring 2011: B2C20 first Unit 2 A1OXM reload
-226 fresh A1OXM
-238 once burned A10
-96 twice burned peripheral or near peripheral GE14
- Spring 2012: B1C19 first Unit 1 A10XM reload Fresh A1OXM Once and twice burned A10 No GE14
~ Progress Energy 4
- Provide A1OXM fuel design overview
- Summarize AREVA's NRC approved fuel design licensing process for new BWR fuel designs
- Solicit NRC feedback
~ Progress Energy 5
Parameter A10 A10XM Lattice 10x10 10x10 PLFRs Number 8
12 Length Reference Shorter Fuel Rod Diameter Reference Increased Clad Material CWSR Zr-2 CWSR Zr-2 Thickness Reference Increased Uranium mass Spacers Number Type Material Water channel Fuel channel Debris Filter I Reference 8 evenly spaced ULTRAFLOW Zr-4 / X-718 springs No Crowns Zr-4; thick-thin Modified or Improved FUELGUARD Proportionally Increased 9 variable spaced ULTRAFLOW X-718 Water Crowns Zr-4; thick-thin Improved FUELGUARD 8 :w 7
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ATRIUM'" 10 8PLFR
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Water Channel Crowns ATRIUM-10XM 12 PLFR
~ Progress Energy 6
A1OXM fuel design overview Operating experience
- A1OXM design features validated by operating experience and PIE examinations
- No new materials introduced relative to current A10 design
- Lead assemblies since 2002, reload batches since 2005
- Details in proprietary ANF-89-98 criteria compliance summary
- U.S./LaSalle: 8 A10XM LUA's loaded Spring 2009
- LUA's testing Chromia doped pellets: not part of standard design
- Fabricated in AREVA's Richland, WA facility
- B2C20 will be first U.S. reload
~ Progress Energy 7
A1OXM fuel design overview AREVA new fuel design licensing process
- ANF-89-98(P)(A) Revision 1 and Supplement 1, May 1995, Generic Mechanical Design Criteria for BWR Fuel Designs, with NRC accepted letter clarifications (May 2000)
"BWR fuel designs which meet these design criteria will not need to be submitted to the NRC for explicit review and approval. Compliance with the design criteria would constitute approval."
- Generic ANF-89-98(P)(A) fuel design criteria consist of:
- Criteria confirmed independent of plant/cycle
- Criteria confirmed on a plant/cycle specific basis
- ANF-89-98(P)(A) process applied to both minor design changes and new fuel designs
- Minor fuel design examples: spacer strip or clad thickness change
- New fuel design examples: spacer with new mixing behavior, change that alters fuel behavior relative to NRC approved models.
~ Progress Energy 8
A1OXM fuel design overview AREVA new fuel design licensing process
- ANF-89-98(P)(A) process for minor design changes
- Criteria confirmation available at AREVA for inspection by NRC
- Minor design change confirmation not provided to NRC for information
- ANF-89-98(P)(A) process for new fuel designs
- PlanUcycle independent criteria compliance summary provided to NRC by AREVA for information
- Plant/cycle specific criteria evaluations performed for licensees would need to be provided by the licensees; available at AREVA for inspection by NRC
- A1OXM criteria confirmation summaries to be provided for information
- AREVA to provide A10XM planUcycle independent criteria compliance summary-April 2010
- BSEP to provide planUcycle specific criteria compliance summaries - as completed during the reload licensing process
~ Progress Energy 9
A1OXM fuel design overview AREVA new fuel design licensing process
- Plant/cycle specific criteria confirmations performed by normal reload licensing process
- Reports to be provided for information:
- Thermal Hydraulic Design Report (Unit 2 and Unit 1)
- TH compatibility (plant criteria)
- Fuel Cycle Design Report (Unit 2 only)
- Mechanical Design Report (Unit 2 only)
- Fuel lift (plant criteria applies to both Units)
- Structural deformation (plant criteria applies to both Units)
- LOCA Report (applies to both Units)
- LOCA performance criteria (plant criteria)
- Reload Safety Analysis Report (Unit 2 and Unit 1)
~ Progress Energy 10
- Add RODEX4 mechanical methodology LTR to list of methods
- Remaining COLR references are currently approved for application to BSEP and are fuel design independent
- SPCB CPR correlation and RODEX2 will continue to be used for remaining fuel designs
- BSEP amendment requests will reference and describe execution of the ANF-89-98(P)(A) process
~ Progress Energy 11
Supporting license amendment requests ACE/A10XM CPR correlation
- ANP-10298PA, Revision 0, ACE/ATRIUM 10XM Critical Power Correlation
- NRC approved March 2010
- SLMCPR methodology implementation
- NRC approved power distribution uncertainties previously demonstrated applicable to BSEP for AREVA fuel transition
- ANP-10298PA incorporates same conservative channel bow treatment for SLMCPR used by ANP-10249PA, ACE/A10 CPR correlation
~ Progress Energy 12
Supporting license amendment requests ACE/A1OXM CPR correlation
- Separate SLMCPR submittal expected
- Conservative channel bow treatment increases SLMCPR
- Current TS SLMCPR not expected to bound cycle specific result SER Restriction I Compliance Not approved for AREVA fuel designs IWill be applied to A1OXM fuel other than A1OXM Must be applied within correlations Correlation range of applicability approved range of applicability as enforced by software; same controls specified in Table 2-1 of ANP-1 0298P applied to current SPCS correlation
~ Progress Energy 13
Supporting license amendment requests RODEX4
- BAW-10247PA, Realistic Thermal-Mechanical Fuel Rod Methodology for Boiling Water Reactors (RODEX4)
- NRC approved February 2008
- Used to calculate LHGR limits for A1OXM fuel
- Methodology implementation
- LAR will demonstrate applicability of NRC approved power distribution uncertainties used by RODEX4 to BSEP
- Abnormal channel bow not expected
- All AREVA fuel channeled with shadow bow resistant Zr-4 channels
- Reload design process incorporates channel bow prevention and management
~
~~ Progress Energy 14
Supporting license amendment requests RODEX4 SER Restriction/Condition Compliance Analytical fuel pellet grain size shall not exceed 20 microns if actual grain size is larger than 20 microns Analyses will conform with this analytical limit Shall not be used to model fuel above incipient fuel melting temperatures RODEX4 will not be applied to this condition Hydrogen pickup model not approved for use Model will not be used Approved values of equation constants and tuning parameters shall not be changed without NRC review Approved values will be used
~ Progress Energy 15
Supporting license amendment requests RODEX4 SER Restriction/Condition Compliance Calculations must account for a design basis crud thickness. Level of crud should be based on an upper bound of expected crud. Specific analyses required if abnormal crud or corrosion layer is observed.
Analyses bound measurement data base.
BSEP fuel inspections have demonstrated low crud levels.
Peak rod average burnup limit of 62 GWd/MTU Will not be applied above 62 GWd/MTU U02 fuel with less than 10 wlo Gd Will not be applied to other than U02 fuel less than 10 wlo Gd CWSR Zr-2 fuel clad material Will not be applied to other than CWSR Zr-2 clad
~ Progress Energy 16
Milestone AREVA 89-98 A10XM Compliance Report
Thermal Hydraulic Design Report **
LOCA Report **
BSEP SLMCPR LAR Mechanical Design Report **
Reload Safety Analysis Report **
BSEP ACE, RODEX4, SLMCPR approval B2C20 Outage
- Provided For Information by AREVA
- Provided For Information by BSEP 17 Date Apr 2010 Apr 2010 Aug 2010 Aug 2010 Aug 2010 Sep 2010 Nov 2010 Nov 2010 Mar 2011 (3/4/11)
Mar 2011 (3/4/11)
~ Progress Energy
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