ML20055H374

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Summary of 900727 Presentation by Util Re Facility Cycle 2 Fuel Design & Future Fuel Activities.License Amend Will Be Needed for Plant to Go to Higher Enrichment Fuel for 18-month Cycle.Viewgraphs Encl
ML20055H374
Person / Time
Site: Seabrook 
Issue date: 07/20/1990
From: Nerses V
Office of Nuclear Reactor Regulation
To:
Office of Nuclear Reactor Regulation
References
NUDOCS 9007260120
Download: ML20055H374 (19)
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Text

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4 July 20,1990 l

' Docket No. 50-443 LICENSEE: Public Service Company of New Hampshire (PSNH)

FACIL11v: Seabrook Station, Unit 1

SUBJECT:

SUMMARY

OF THE JUNE 77, 1990, On June' ?7,1990, New Hampshire Yankee (NHY) made a presentation to the staff on Seabrook, Unit 3 cycle 2 fuel design and future fuel activities. NHY stated it will be finalizing their cycle 2 fuel contract by July 13, 1990, and wanted i

to take this oppoi*. unity to apprise the staff of the cycle 2_ design features and to see 11 +he ;taff had any recent concerns that NHY should consider. The staff had no cr.,ne.ns.

I HHY stated that all the cycle 2 fuel design features have already been used in a number of other Westinghouse plants.

For example, a debris filter bottom nozzle (32 plants); a removable top nozzle (46 plants); higher burnup

.i (32 plants); wet annular bundle absorber 132 plants); integrated fuel burnable absorber (25 plants).

NHY indicated that the current plan is that cycle 2 will' be a 14 month cycle and because cycle 2 reload fuel design will be handled by a 50.59 safety evaluation no license amendment will be required.

For Cycle 3, NHY is planning for an 18 month cycle. -To get an 18 month cycle, NHY indicated it will need to go to a higher enrichment fuel. Because of this a license amendment will be needed.

t Original signed by Victor Nerses Project Manager Project Directorate 1-3 Division of Reactor Projects - 1/11 i

Office of Nuclear Reactor Regulation

Enclosure:

List of Attendees cc w/ enclosure:

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SEABROOK MTG.

SUMMARY

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DISTRIBUTION:

Fecility: Seabrook j

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Local POR T. Murley-12-G-18 F. Miraglia-12-G-18

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E. Jordan MNBB-3302 Brian Grimes 9-A-2 R. Wessman S.'Varga.

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Thomas Dignan, Esq.

Mr. A. M. Ebner, Project Manager John A. Ritscher, Esq.

United Engineers & Constructors i

Popes and Gray Post Office Box 8223 225 Franklin Street Philadelphia, Pennsylvania 19101 J

Boston,' Massachusetts 02110 D. Pierre G. Cameron, Jr., Esq.

Dr. Mauray Tye, President General Counsel

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Sun Valley Association Public Service Company of New Hampshire i

P09 Summer Street Manchester, New Hampshire 03105 Haverhill, Massachusetts i

Mr. T. L. Harpster a

Barbara J. Saint Andres Esquire Public Service Company of New Hampshire Kopelman & Paige, P.C.

P. O. Box 300 j

Counsel for Amesbury, Newburyport &

Seabrook, New Hampshire 03874 Salisbury 77 Franklin Street Regional Administrator,-Region i Boston, Massachusetts 02110 U.S. Nuclear Regulatory Commission 475 Allendale Road Pobert Backus, Esq.

King of Prussia, Pennsylvania 19406 Backus, Meyer and Solomon 116 Lowell Street Ashod N. Amirian, Esq.

Manchester, New Hampshire 03106 145 Main Street, P.O. Box 38 Bradford Massachusetts 01830 Diane Curran, Esq.

Harmon and Weiss Paul McEachern, Esquire 2001 S Street, N.W.

25 Maplewood Avenue-Suite 430 P.O. Box 360 Washington, DC 20009 Portsmouth, New Hampshire 03801 Mr. Peter Brann Mr. Alfred V. Sargent Assistant Attorney General Chairman

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State House, Station #6 Board of Selectmen Augusta, Maine 04333 Salisbury, Massachusetts 01950 Seacoast Anti-Pollution League Senator.srdon J. Humphrey B Market Street U.S. Senate Portsmouth, New Hampshire 03801 ATTN: Tom Burack Washington, D.C. 20510 1

Mr. T. Feigenbaum Public Service Company Durham Board of Selectmen

-of New Hampshire Town of Durham Post Office Box 330 Durham, New Hampshire 03824.

Seabrook, New Hampshire 03874 Mr. John Traficonte.

Resident inspector Chief Nuclear Safety Unit U.S. Nuclear Regulatory Commission

_ Department of the Attorney General i

Seabrook Nuclear Power Station One Ashburton Place i

P.O. Box 1149 Boston, Massachusetts 02108-1698' Seabrook, New Hampshire 03874

1 cc:

Board of Selectmen Jane Spector RFD Dalton Road-Federal Energy Regulatory Commission Brentwood, New Hampshire 03833 825 North Capital Street, N.E.

Room 8105 i

Ms. Suzanne Breiseth, Washington, D.C. 20426 Board of Selectmen Town of Hampton Falls Mr. R. Sweeney Drinkwater Road -

Three Metro Center Hampton Falls, New Hampshire 03844 Suite 610 Bethesda, Maryland 20814 Mr. Guy Chichester, Chairman Rye Nuclear Intervention Mr. George L. Iverson, Director Comittee New Hampshire Office of Emergency c/o Rye Town Hall Management' 10 Centra; Road State Office Park South Rye, New Hampshire 03870 107 Pleasant Street 1

Concord, New Hampshire 03301 Chairman, Board of Selectmen RFD 2 Adjudicatory File (2)

South Hampton, New Hampshire 03B27 Atomic Safety and Licensing Board Panel Docket R. Scott Hill-Whilton, Esquire U.S. Nuclear Regulatory Connission Lagoulis, Clark, Hill-Whilton Washington, D.C. 20555

& Rotondi 79 State Street Congressman Nicholas Mavroules r

Newburyport, Massachusetts 01950 U.S. House of Representatives 70 Washington Street Ms. R. Cashman, Chairman Salem, Massachusetts 01970 Board of Selectmen

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Town of Amesbury Mr. Leon E. Maglathlin Town Hall Public Service Company of New Hampshire Amesbury, Massachuetts 1000 Elm St., P.O. Box 330 1

Manchester, New Hampshire 03105-1 Pr. George Olson, Town Manager Town of Exeter Mr. Jack Dolan

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10 Front Street Federal Emergency Management Agency-Exeter, New Hampshire 03823' Region 1 J. W.' McCormack Post Office and i

Gerald Garfield, Esq.

Courthouse Building, Room 442 Day, Berry and Howard Boston, Massachusetts 02109 City Place Hartford, Connecticut 06103-3499 Mr.-J. M. Peschel Public Service Company of New Hampshire Mr. J. F. Opeka P.O. Box 300 Northeast Utilities Seabrook, New Hampshire 03874 P.O. Box 270 Hartford.. Connecticut 06141-0270 Mr. D. E. Moody Public Service Company'of New Hampshire' Mr. R. M. Kacich P.O. Box 300 Northeast Utilities Service Company Seabrook, New Hampshire 03874 l

P.O. Box 270 Hartford, Connecticut 06141-0270.

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9 Edward A. Brown i

G.Paulpollwerk,III Alan S. Rosenthal Atomic Safety & Licensing Atomic Safety & Licensirg Appeal Board Appeal Board

. U.S. Nuclear Regulatory Commission U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Washington, D.C. 20555 Howard A. Wilber j

Atomic. Safety & Licensing

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Appeal Board U.S.. Nuclear Regulatory Commission Washington, D.C. 20555 Atomic Safety and Licensing Board Panel i

U.S. Nuclear Regulatory Commission 4

Washington,'D.C. 20555 Atomic Safety and Licensing Appeal Panel U.S. Nucicht Regulatory Commission Washington, D.C. 20555 t

Thomas S. Moore, Chairman Atomic Safety & Licensing 1.ppeal Board U.S. Nuclear Regulatory Commission Washington, D.C. 20555 l

Ivan W. Smith, Chairman (2)

Administrative Judge i

Atomic Safety tind Licensing Board U.S. Nuclear Regulatory Commission =

Washington, D.C. 20555 Richard F. Cole i

Administrative Judge Atomic Safety and Licensing Board e

i U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Kenneth A. McCollom-Administrative Judge 1107. West Knapp Street Stillwater,_0klahoma 74075 r

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3 ATTENDEES NRC-CP&L EDSF1 MEETING NAME TITLE ORGANIZATION Victor Nerses Projecttianager NRC/NRR Eric Taylor Engineer YAEC Paul Gurnty RE Supervisor NHY R. J. DeLoach Executive Director NHY T. L. Harpster Dir. Licensing Serv.

NHY Al Legendre.

ttHY Licensing Serv.

NHY Robert E. Sweeney Bethesda Licensing Office NHY Bernard W. Gergos Fuel Licensing Westinghouse S. B. Sun NRC/SRXB Shih-Liang Wu NRR/SRXB Daniel Lieno NPR/SRXB Larry Kopp NRR/SRXB i

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New Hampshire Yankee Presentation To NRC Staff Seabrook Station Cycle-2 Fuel Design and Future Fuel Activities June 27,1990 9

l 1.

Introduction / Fuel Cycle Plans 11.

Cycle 2 Fuel Design and Management lil-Schedules of Future Submittals IV.

Summary and Closing Remarks V.

O.uestions and Answers l

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New Hampshire j

Yankee

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New Hampshire Yankee.

Fuel Cycle Recommendations

  • - Cycle 2 - 14 Months Fall '92 Outage No License Amendment
  • Cycle 3 - 18 Months-Lower Ratepayer Costs Spring '94 Outage License Amendment Required' New Hampshire Yankee x.

FUEL CYCLE OPTIONS s

1 1991i 1992 1993-1994l 1995 1996 1

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j CURRENT PLAN ~

l (14 Month Cycles) f 5 Refuel Outages Cy 1 C :y 2 Cy 3 Cy 4 Cy 5 CyE j

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u PROPOSED STRATEGY l

u (18. Month Cycles):

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4 Refuel Outages 1

Cy?1 C :y 2 Cy 3 '

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Cy 5

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New Hampshire Yankee

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I Seabrook.

Reload Fuel Design and Fuel Management For Cycle 2 i

  • Westinghouse Standard 1-7 x 17 Fuel Assemblies.with Additional Features Debris Filter Bottom Nozzle (DFBN)-

Removable Top Nozzle (RTN)-

i a

High Burnup Design Assembly q

Integral Fuel Burnable Absorber (IFBA)

Wet Annular Burnable Absorber (WABA)

Yankee

u DEBRIS FILTER BOTTOM NOZZLEfDFBN1

  • PURPOSE: Minimizes the Passage of Debris into the Fuel Assembly Thereby Reducing; the Probability of Debris-Induced Fuel Damage l

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  • DFBN. Design includes /A Revised Pattern of i.

Flow Holes l

Structural Integrity of Nozzle is Maintained t

Hydraulic Performance Matches'that of the 1

Existing Fuel Assemblies in the Core l-t

  • EXPERIENCE: Through 1989,22 Regions incorporating the DFBN Design >HadcBeen i

Used in 20 Plants l

New Hampshire

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Current Debris Filter a

REMOVABLETOP. NOZZLE dRTN):

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  • PURPOSE:. Permits Removal and' l

Reattachment of the Top Nozzle L

Throughout the Fuel Assembly Lifetirn,.;,.

Thereby,- Allowing Access to the Fuel Rods.

for inspection.or Replacement

-* EXPERIENCE: Through 1989,51 Regionsi f

l Incorporating the:RTN Design Had Boen l

Used in 35 Plants l

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HIGH18URNUP DESIGN 1 ASSEMBLY q

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  • PURPOSE Enebles Extended Cycle OperatioriResulting in-Lower Plant Power Costs-Reduces the Number of Assemblies Used Over l

the Plant Lifetime-

  • INCREASED FUEL ROD PLENUM VOLUME Smaller Volume Plenum Spring.-

Longer Fuel Rod

  • INCREASED ROOM:for FUEL ROD GROWTH 1
  • EXPERIENCE l

l Throughi1989; 27 Regions incorporating the High Burnup Assembly Design Have Been-Used in 22 Plants-i-

3365 W Assemblies with BU > 36 GWD/MTU t'

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772 W Assemblies with BU > 40 GWD/MTU 1

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.:p b INTEGRAL FUEL BURNABLETABSORBER j

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  • PURPOSE: Provides a'More Efficient Means of-Reactivity and Power Peaking Control:

Compared with the Current Borosilicate Glass Absorber Design and the Wet Annular Burnable Absorber Design.

  • NEUTRON ABSORBERS lNTEGRATED lNTO-FUEL PELLET-q Less than One Mil Zirconium Diboride Coating-

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on Standard Fuel Pellet Separate Burnable Absorber Rods Are.

Eliminated, Resulting in a Smaller Residual Reactivity Penalty i

Assemblies with IFBA'Can Be Positioned Under Control Rods or Neutron Sources Separate. Burnable' Absorber Rod Handling-and Disposal Costs Eliminated:

  • EXPERIENCE: Through11989,19; Regions Incorporating:the IFBA Design Had Been-Used'in,13 Plants New Hampshire Yankee

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  • h WET ANNULAR. BURNABLE l ABSORBER-(WABAD
  • PURPOSE: Provides a More Efficient Means of Reactivity and Power Peaking: Control

. Compared to the Current Borosilicate Glass j

Design land Will Be Used As Needed to Provide Design FlexibiliyL

-Pellets Sheathed in Concentric Zircaloy.

Tubes Reactor Coolant Flows inside the ' Inner Tubing and Outside the Outer Tubing-WABAs Suspended from identical' Burnable-Absorber Hold Down Assemblies as in the Existing Borosilicate Glass Design EXPERIENCE: ThroughE1989, More.Than-

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12,500 Rods Were.In Service and:Over 1

45,000 Rods Have Been Shipped to Date 1

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New Hampshire

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LOW LEAKAGE LOAblNG PATTERN q

PURPOSE: Neutron Leakage:Is; Reduced:by j

Loading Previously irradiated-Assemblies On:

the Core Periphery Improves Fuel Economy.

' Reduces Fluence.On Reactor Pressure Vessel

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1 EXPERIENCE: The> Majority of-Plants Have j

Implemented Low Leakage Loading Patterns i

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New Hampshire Yankee:

Schedules:for Future Submittals:

18 Month Cycle-

- License Amendment Submittal by 1/91

- License Amendment Approval by 6/91

' Order Fuel by 7/91 a

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