L-2003-018, CFR50.46, Acceptance Criteria for Emergency Core Cooling Systems in Light Water Nuclear Power Reactors - Annual Report.

CFR50.46, Acceptance Criteria for Emergency Core Cooling Systems in Light Water Nuclear Power Reactors - Annual Report.

ML030420016
Person / Time
Site:	Turkey Point
Issue date:	01/30/2003
From:	Mcelwain J Florida Power & Light Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
L-2003-018
Download: ML030420016 (3)

Text

FPL 0 2o3 L-2003-018 10 CFR §50.46 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555 Re: Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 10 CFR 50.46, "Acceptance Criteria for Emergency Core Cooling Systems in Light Water Nuclear Power Reactors" - Annual Report 10 CFR 50.46(a) (3) (ii) requires that licensees report to the Commission at least annually the nature of changes to, or errors discovered in, the Emergency Core Cooling System (ECCS) evaluation models, or in the application of such models that affect the peak clad temperature calculation and their effect on the limiting ECCS analysis. The attachment to this letter provides the Florida Power and Light Company (FPL) report for Turkey Point Units 3 and 4 for 2002.

Should there be any questions, please contact Walter Parker, Licensing Manager, at 305-246-6632.

Very truly yours, John P Elwain Vice President Turkey Point Plant OIH Attachment cc: NRC Regulatory Issue Summary 2001-05 waived the requirements that multiple copies of documents be submitted to the NRC.

an FPL Group company

Attachment L-2003-018 Page 1 of 2 Small Break Loss of Coolant Accident (SBLOCA)

By letter L-2002-014, dated January 24, 2002, Florida Power and Light Company (FPL) reported a Peak Clad Temperature (PCT) of 1691'F applicable for Unit 3, and a PCT of 1689'F applicable for Unit 4, for the SBLOCA transient analysis. There are no reported changes for the Turkey Point Units 3 and 4 SBLOCA PCT during 2002.

Large Break LOCA (LBLOCA)

By letter L-2002-014, dated January 24, 2002, FPL reported a PCT of 2109'F for the LBLOCA transient analysis. Since the last report, a 20OF PCT credit has been calculated due to a change in the axial power shape analysis input (PMID )upper range limit from 0.43 to 0.47. This change is summarized in Table 1. Based on the above, a PCT of 2089OF for the LBLOCA is applicable for both units.

Summary The PCT of 1691OF for Unit 3 and 1689'F for Unit 4 for the SBLOCA and the PCT of 2089°F for the LBLOCA, are below the 10 CFR 50.46 0

ECCS acceptance criteria limit of 2200 F. Turkey Point Units 3 and 4 remain in compliance with the Emergency Core Cooling System performance criteria specified in 10 CFR 50.46 (b).

Attachment L-2003-018 Page 2 of 2 TABLE 1 TURKEY POINT UNITS 3 AND 4 PREDICTED LBLOCA PEAK CLAD TEMPERATURE 2001 Annual Report 2109 0 F Total LBLOCA PCT reported in (FPL letter L-2002-014)

Evaluations Performed in 2002

-20°F PMID upper range limit increase Total Estimated LBLOCA PCT 2089OF