ML17223A506
| ML17223A506 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 01/25/1990 |
| From: | Sager D FLORIDA POWER & LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML17223A507 | List: |
| References | |
| L-90-21, NUDOCS 9002120265 | |
| Download: ML17223A506 (4) | |
Text
ACCELERATED DI UTION DEMONS TION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
S
//8/9'8 COPIES RECIPIENT ID CODE/NAME PD2-2 PD COPIES LTTR ENCL 1
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ACCESSION NBR:9002120265 DOC.DATE: 90/01/25 NOTARIZED: YES DOCKET FACIL:50-389 St. Lucie Plant, Unit 2, Florida Power
& Light Co.
05000389 AUTH.NAME AUTHOR AFFILIATION SAGER,D.A.
Florida Power
& Light Co.
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f'.
RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)',
SUBJECT:
Forwards CEN-396(L)-P, "Verification of Acceptability of 1 Pin Burnup Limit of 60 MWD/KG for St Lucie Unit 2."
I DISTRIBUTION CODE AP01D COPIES RECEIVED:LTR ENCL SIZE:
D TITLE: Proprietary Review Distribution Operating Reactor NOTES:
INTERNAL: ACRS AEOD EXTERNAL: LPDR PAB 01 6
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AEOD/DOA OGC/HDS2 NRC PDR 1
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NOTE TO ALL"RIDS" RECIPIENTS:
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D PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 20079) TO ELIMINATEYOUR NAMEFROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!
TOTAL NUMBER OF COPIES REQUIRED:
LTTR 17 ENCL 14
1 P.O. Box14000, Juno Beach, FL 33408-0420 IIEg2s
><so L-90-21 10 CFR 2.790 U. S. Nuclear Regulatory Commission Attn:
Document Control Desk Washington, D.
C.
20555 Gentlemen:
Re:
St. Lucie Unit 2 Docket No. 50-389 Fuel Pin Burnu Limit to 60 MWD k The present St.
Lucie Unit 2 operational limit on fuel burnup, presented in Combustion Engineering (CE) report CENPD-269-P, Revision 1-P, "Extended Burnup Operation of Combustion Engineering PWR Fuel,"
dated July 1984, justifies a fuel pin limit (1-pin limit) of 52 MWD/kg.
Physics core predictions for the design of Cycle 7,
St Lucie Unit 2, currently scheduled for April 1992, indicate that a 1-pin limit of 60 MWD/kg will be required.
Based on this information, Florida Power 6 Light Company (FPL) requests the Staff's review and approval of the attached CE proprietary
- report, CEN-396(L)-P, "Verification of the Acceptability of a 1-Pin Burnup Limit of 60 MWD/kg for St. Lucie Unit 2."
The objective of the attached report is to justify the CE methods and models for the St. Lucie Unit 2 reload fuel assembly design for 1-pin burnups to 60 MWD/kg.
The overall and individual conclusions presented in the 1984 CE report, CENPD-269-P, Revision 1-P, are shown to be valid for the extension of the 1-pin burnup limit to 60 MWD/kg for the St.
Lucie Unit 2 reload fuel assembly design.
The attached report is similar to that submitted by Arkansas Power and Light Company for Arkansas Nuclear One Unit 2 (ANO-2) on July 20, 1989 (Charles H. Turk to U. S. Nuclear Regulatory Commission).
The St.
Lucie Unit 2 report differs from the ANO-2 submittal primarily in Section 4.2.2.a.
This section describes irradiation induced dimensional change models (guide tube growth and shoulder gap change) applicable to the annealed guide tubes used in the St.
Lucie Unit 2 fuel design, as opposed to the cold-worked guide tubes employed in other 16 x 16 CE fuel designs.
Other sections of the report that are St.
Lucie Unit 2 specific include the List of Figures, Introduction, Section 4.2.l.a on Guide Tube Wear, and the Conclusion section.
9002120265 900i25 QEMPT PROM DISCLOSURE F'DR ADOCK 0<0003S9 IMAGER g.790 INFORMATION PDC pl an FPL Group company
gV U. S. Nuclear Regulatory Commission L-90-21 Page two Attachment 1
is the CE proprietary
- report, CEN-396(L)-P, "Verification of the Acceptability of a 1-Pin Burnup Limit of 60 MWD/kg for St. Lucie Unit 2", copy number 000001.
Attachment 2 is an affidavit pursuant to 10 CFR 2.790 requesting proprietary treatment of Attachment 1.
It is requested that the NRC approve this report by October 1990 to permit FPL to plan the St. Lucie Unit 2 Cycle 7 reload with an assumed 1-pin burnup of 60 MWD/kg.
Very truly yours, D. A.
ger Vice esident St. Lucie Plant DAS/MSD/gp Attachments cc:
Stewart D. Ebneter, Regional Administrator, Region II USNRC (w/copy No. 000002, Attachment 2)
Senior Resident InsPector, USNRC, St. Lucie Plant (w/copy No.
- 000003, Attachment 2)
Jan A. Norris, NRR Project Manager, USNRC (w/copy Nos. 000004,
- 000005, 000006, 000007 and 000008, Attachment 2)
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