Meeting Handouts for Palo Verde to Present the Status of Its Programs for Dry Cask Storage, Core Reactivity Management, and Fuel Performance for the Three Units| ML030710616 |
| Person / Time |
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| Site: |
Palo Verde  |
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| Issue date: |
03/12/2003 |
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| From: |
Donohew J
NRC/NRR/DLPM/LPD4 |
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| To: |
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| References |
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| Download: ML030710616 (17) |
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Text
NRC FORM 658 U.S. NUCLEAR REGULATORY COMMISSION (9-1999)
TRANSMITTAL OF MEETING HANDOUT MATERIALS FOR IMMEDIATE PLACEMENT IN THE PUBLIC DOMAIN This form is to be filled out (typed orhand-printed)by the person who announcedthe meeting (i.e., the person who issued the meeting notice). The completed form, and the attached copy of meeting handout materials,will be sent to the Document Control Desk on the same day of the meeting; under no circumstances will this be done later than the working day after the meeting.
Do not include proprietarymaterials.
DATE OF MEETING The attached document(s), which was/were handed out in this meeting, is/are to be placed 03/12/2003 in the public domain as soon as possible. The minutes of the meeting will be issued in the near future. Following are administrative details regarding this meeting:
Docket Number(s) STN 50-528, STN 50-529, and STN 50-530 Plant/Facility Name Palo Verde Nuclear Generating Station TAC Number(s) (ifavailable) None.
Reference Meeting Notice Notice dated 02/25/2003 (ADAMS ML030520009)
Purpose of Meeting (copy from meeting notice) The licensee requested the meeting to present the status of its programs for dry cask storage, core reactivity management, and fuel performance for the three units.
NAME OF PERSON WHO ISSUED MEETING NOTICE TITLE Jack N. Donohew Senior Project Manager OFFICE Office of Nuclear Reactor Regulation DIVISION Division of Licensing Project Management BRANCH Project Directorate IV Distribution of this form and attachments:
Docket File/Central File PUBLIC NRC FORM 658 (9-1999) PRINTED ON RECYCLED PAPER This form was designed using InForms
Nuclear Fuel Update Palo Verde Nuclear Generating Station March 12, 2003 Meeting with US NRC sy/
A!aýw Review of 2002 May 2002 Meeting with NRR Review of Unit 2 Cycle 11 CENTS Implementation Clad Performance Strategy CEA Investigation Dry Cask Storage Update 2
1
Agenda Today
+ Reactivity Management
+ Fuel Performance
- Dry Cask Storage Update Reactivity Management
+ Palo Verde Actions
Overview
- Reactivity Management AFI
"*REACTOR ENGINEERING
"*OPERATIONS Palo Verde Actions
- NFM/Operations/Training Interface
- Operations Single Point of Contact
- Xenon Program
+ Training 6.,,* .
3
Results
+ Standardized Game Plans
+ Improved Inter-Departmental Relationships
- Improved Tools 7 __~imnlm CENTS, RSG, U2 Uprate
- CENTS Implementation Status
CENTS Implementation Status
- U1, U2 Complete - U3 April 2003
- SABD Revision 20% Complete
- SGTR + LOP + SF
- Long Term FWLB (PSV Operability)
U2 RSG & Power Uprate
- Draft SER 3131 -- Final SER 6/30
- SABD Supplement In Progress
- U2C12 Reload Safety Analyses Begun
- Actively Participating in Development of SG Startup Test Program 5
Fuel Performance
- Integrated Fuel Clad Strategy:
- Advanced Clad Alloys
- Primary Chemistry
- CRUD/Oxide Software
- Low Duty Core Designs
+ Long Range Fuel Inspection Plan IOi Advanced Clad Alloys
- Westinghouse Decision: Low Tin Zirlo
- Alloy A LTA in U3C10 (Spring 2003)
- First Batches of Standard Zirlo &
Columbia Fuel Rod
- U2C11, UICll (2002)
- U3ClI In April 2003
- Fuel Handling Accident Rod Pressure 12 6
Primary Chemistry
- Additional RCS Cleaning at EOC Shutdown
+ Early Lithium Injection During Startups
+ Elevated-Coordinated Lithium Strategy
- Currently 7.1 pH
- Hold Until Inconel Corrosion Issue Resolved 13 CRUD/Oxide Software
- Steaming Rate in Core Design Tools
- Screen Patterns Against U3C9 Benchmark
+ APS CRUD/Oxide Model
- Nodal Level/High Duty Ass'y Rod Level
- Vendor Fuel Duty Model
- Safety Grade Oxide and FDI Calculations 14 7
Low Duty Core Designs
- 104 vs 96 Assemblies
- UICIO Visuals of PIM316
- U2 Uprate Corrosion Strategy
- Zirlo Clad
- Re-design Lattice Pattern
~A Re-Designed Lattice
- 2 Enrichments
- 12 High Enrichment Rods on Each Face
+ New Lattice
- 3 Enrichments
- Same Assembly Average Enrichment
- All Peripheral Rods Low Enrichment
- Extensive Design Review 16 8
Long Range Fuel Inspection Plan
- Unit 2, Beginning Fall 2003 Oxidation (R11, R12, R13)
SZirlo
- Lithium 3.5 PPM (R11, R12)
- Higher Burnup Leakers 17~
CPC Replacement
CPC Replacement Overview
- Upgrade to Modern Hardware
- 8 CEA Calculators
- Concurrent Software Language Change
+ Preserve Original Functionality & Timing
- First Installation - Fall 2003 Outage 19 CPC Replacement Licensing
- SER on Westinghouse Common-Q
- No Impact to Safety & Uncertainty Analyses
- PVNGS Supports Joint Meeting 20 10
CEA Replacement
- Determination of New, Conservative Lifetime
- Design of New Replacement CEAs
+ Replacement of PLCEAs 21 Review of CEA History
+ CEA Finger Failures Observed - 2001
- Cracks in High Fluence CEA Tips
- Root Cause - IASCC, Inadequate Testing
- U2/U3 With Small Pellet Less Severe
+ All Full Length CEAs Replaced
- Replaced by Design with Smallest Pellet
- Lifetime Software Abandoned 22 I1
Determination of New Lifetime
- Investigating Various Options
- Monitoring YGN Inspections
- Inconel IASCC Threshold
- Vendor Has Adjusted Software 23 Design of New CEAs
+ Now: Unique Feltmetal Design
+ Want: Industry Standard AglnCd Tips
+ Tip Region Extended 4 Inches
- Hollow AgInCd Slugs 24 B' L 12
Replacement of PLCEAs
- Part Length, Part Strength
- Not Subject to Same Failure Mode
- Reviewing Design Bases
- Full Length, Part Strength
- Transparent to Safety Analysis
- Tech Spec Change Required 13
Dry Cask Storage Update
- Loaded 24 assemblies in first canister March 3
- Shield lid welded March 6
- Completed first vacuum drying period March 8
- March 10 will start 2nd vacuum drying period
- Capturing lessons learned from first loading 26
Fuel Loading Schedule
- Complete first canister loading in March, 2003
- Time out for Unit 3 Refueling outage, ends early May, 2003
- Complete Unit 2 campaign in June
- Load 5 casks in Unit 1 later in 2003
- Plan to load 10 casks per year 27
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