NG-05-0483, 10 CFR 50.46 Annual Report of Changes in Peak Cladding Temperature

10 CFR 50.46 Annual Report of Changes in Peak Cladding Temperature

ML052770353
Person / Time
Site:	Duane Arnold
Issue date:	09/21/2005
From:	Vanmiddlesworth G Nuclear Management Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NG-05-0483
Download: ML052770353 (2)

Text

NM Committed to Nuclear Duane Arnold Energy Center Operated by Nuclear Management Company, LLC September 21, 2005 NG-05-0483 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

Subject:

10 CFR 50.46 Annual Report of Changes in Peak Cladding Temperature for the Duane Arnold Energy Center

Reference:

Letter from M. Peifer (NMC) to USNRC, "10 CFR 50.46 Annual Report of Changes in Peak Cladding Temperature for the Duane Arnold Energy Center,"

NG-04-0604,.dated September 30, 2004.

In accordance with 10 CFR 50.46(a)(3)(ii), Nuclear Management Company, LLC (NMC) hereby submits 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 fromr the last annual report (reference) through August 31, 2005. ' - -

Our fuel vendor has not notified NMC of any additional errors or changes that impact the PCT in the current Loss-of-Coolant Accident analysis for the DAEC subsequent to the referenced report. Enclosed is a current summary of e DAEC's analysis of record.

Gary Van Middlesworth Site Vice President, Duane ArMold Energy Center Nuclear'Management Company, LLC' Enclosure cc: Administrator, Region Ill, USNRC Project Manager, Duane Arnold Energy Center, USNRC Resident Inspector, Duane Arnold Energy Center, USNRC 0

3277 DAEC Road

• Palo, Iowa 52324-9785 Telephone: 319.851.7611

ENCLOSURE 10 CFR 50.46 ANNUAL REPORT for DAEC - 2005 Peak Cladding Temperature(')

Last Acceptable Model Results(2): 1510 0 F Previously Reports Errors and Changes:

2001('): + 550 F 2002 -2004: + 10 0F New Errors and Changes: None Analysis of Record Results: 1575°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) 30-day Special Report submitted June 7, 2001 (NG-01-0754). This report concluded that no re-analysis was required and reset the 50'F reporting threshold under

§50.46 (a)(3)(i) back to zero.