ML102861220

Duane Arnold - 10 CFR 50.46 Annual Report of Changes in Peak Cladding Temperature

ML102861220
Person / Time
Site:	Duane Arnold
Issue date:	09/30/2010
From:	Costanzo C R NextEra Energy Duane Arnold
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NG-10-0480
Download: ML102861220 (2)

Text

ENERGY NE~DUANE September 30, 2010 NG-10-0480 10 CFR 50.46(a)(3)(ii)

U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Duane Arnold Energy Center Docket 50-331 License No. DPR-49 10 CFR 50.46 Annual Report of Changes in Peak Cladding Temperature for the Duane Arnold Energy Center Reference; Letter from C., Costanzo (NextEra Energy, Duane Arnold) to USNRC, "10 CFR 50.46 Ann'ual of iClhanges;in"ýPeak-Cladding Temperature for the Duane Arnold Energy Center," NG!-0970717 dated September 30, 2009.In accordance with 10 CFR 50.46(a)(3)(ii), NextEra Energy Duane Arnold, LLC (hereafter NextEra Energy Duane Arnold) hereby provides the annual report regarding the changes in the calculated peak cladding temperature (PCT) of the GE14 fuel currently utilized at the Duane Arnold Energy Center (DAEC). This report covers the period from the last annual report (reference) through August 31, 2010.Our fuel vendor has notified NextEra. Energy Duane Arnold that no changes or errors in the current Loss-of-CoolantAccident analysis methodology have occurred subsequent to the referenced report.Enclosed is a historical summary of previously reported errors.This letter contains no new commitments.

r 4vkv?,L 6Aý~Christopher R. Costanzo Vice President, DuaneArnold, Energy Cent6r'NextEra Energy Duane Arnold, LLC Enclosure cc: Administrator, Region Ill, USNRC Project Manager, Duane Arnold: 'nergy Center,. SNRC,....

.Resident lnspect6r-Da neArnnld.Energy Center, USNRC NextEra Energy Duane Arnold, LLC, 3277 DAEC Road, Palo, IA 52324 r)/7 if Enclosure to NG-10-0480 September 30, 2010 10 CFR 50.46 ANNUAL REPORT for DAEC -2010 Peak Cladding Temperature°')

Last Acceptable Model Results(2):

1510°F Previously Reported Errors and Changes: 2001 -2009('): + 65 0 F New Errors and Changes: 0°F Analysis of Record Results: 1575 0 F (1) Licensing Basis PCT (LBPCT), as defined in NEDE-23785-1-P-A, "The GESTR-LOCA and SAFER Models for the Evaluation of the Loss-of-Coolant Accident: Volume III -SAFER/GESTR Application Methodology," February 1985.(2) General Electric Report, "Safety Analysis Report for Duane Arnold Energy Center Extended Power Uprate," NEDC-32980P, Revision 1, April 2001.(3) Evaluations of each reported error have concluded that re-analysis was not required.