NG-11-0289, 10 CFR 50.46 30-Day Special Report of Changes in Peak Cladding Temperature for the Duane Arnold Energy Center

10 CFR 50.46 30-Day Special Report of Changes in Peak Cladding Temperature for the Duane Arnold Energy Center

ML112301480
Person / Time
Site:	Duane Arnold
Issue date:	08/18/2011
From:	Wells P NextEra Energy Duane Arnold
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NG-11-0289
Download: ML112301480 (3)

Text

U.S. Nuclear Regulatory Commission NG-11-0289 August 18, 2011 Enclosure

Enclosure to NG-11-0289 August 18, 2011 10 CFR 50.46 30-Day Report for the DAEC Peak Cladding Temperature(1) Last Acceptable Model Results(2): 1510°F Previously Reported Errors and Changes: 2001 - 2010:+ 65°F New Errors and Changes:

1. Impact of over/under prediction of energy deposited in the channel/fuel from gamma radiation

+ 45 °F 2. Impact of minimizing the contribution of heat from gamma absorption by

the channel

+ 5 °F Analysis of Record Results: 1625 °F (1) Licensing Basis PCT (LBPCT), as de fined 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.