ML19330F314

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Report of 10 CFR 50.46 Emergency Core Cooling System Model Changes
ML19330F314
Person / Time
Site: 05200017
Issue date: 11/25/2019
From: Mark D. Sartain
Dominion Energy Services, Virginia Electric & Power Co (VEPCO)
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
NA3-19-003
Download: ML19330F314 (4)


Text

Dominion Energy Services, Inc.

5000 Dominion Boulevard, Glen Allen, VA 23060 DominionEnergy.com November 25, 2019 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D. C. 20555 VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA UNIT 3 Serial No.: NA3-19-003 NRA/SS RO Docket No.: 52-017 License No.:NPF-103 REPORT OF 10 CFR 50.46 EMERGENCY CORE COOLING SYSTEM (ECCS) MODEL CHANGES General Electric Hitachi Nuclear Energy (GEH) reported no changes to the ECCS model for the Certified Economic Simplified Boiling Water Reactor (ESBWR) Design in letter M180188 from Jerald G. Head (GEH) to U. S. Nuclear Regulatory Commission, "ESBWR Design Certification Annual 10 CFR 50.46 Report for 2018," dated October 1, 2018. The ECCS evaluation model change conclusion provided by GEH is applicable to the North Anna Unit 3 (NA3) Combined Operating License. Therefore, in accordance with 10 CFR 50.46 (a)(3)(ii), this report is being submitted on the NA3 docket. provides the Report of Changes in the GEH ECCS Evaluation Model.

If you have any questions regarding this submittal, please contact Mr. Shayan Sinha at (804) 273-4687.

Very truly yours, Mark D. Sartain Vice President - Nuclear Engineering and Fleet Support

Attachment:

Report of Changes in GEH ECCS Evaluation Model

cc: (electronic distribution, except where noted)

U. S. Nuclear Regulatory Commission Region II Marquis One Tower 245 Peachtree Center Avenue, NE Suite 1200 Atlanta, GA 30303-1257 J. J. Shea, Jr., NRC M.A. Eudy, NRC T. S. Dozier, NRC M. Tobin, NRC D. Paylor, VDEQ M. Nichol, NEI M. K. Brandon, DTE J. Colaccino, NRC R. Westmoreland, DTE Serial No. NA3-19-003 Docket No.52-017 Page 2 of 2

Attachment Serial No. NA3-19-003 Docket No.52-017 2018 ANNUAL REPORT OF EMERGENCY CORE COOLING SYSTEM (ECCS)

MODEL CHANGES PURSUANT TO THE REQUIREMENTS OF 10 CFR 50.46 REPORT OF CHANGES IN GEH ECCS EVALUATION MODEL VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA UNIT 3

Serial No. NA3-19-003 Docket No.52-017 Page 1 of 1 Report of Changes in GEH ECCS Evaluation Model Plant Name North Anna Unit 3 (Docket 52-017)

Utility Name Virginia Electric and Power Company Reporting Year: 2018 Evaluation Model: TRACG Vendor: GE Hitachi LBPCT Net PCT Absolute Effect PCT Effect Analysis of Record Licensing Basis PCT 600°F (LBPCT), with prior updates I.

Prior 10 CFR 50.46 Changes or Error Corrections 2017-02: Fuel Rod Plenum ilPCT =

+ 0°F

+ 0°F Temperature Update

11.

10 CFR 50.46 Changes or Error Corrections for 2018 None ilPCT =

+ 0°F

+ 0°F Sum of 10 CFR 50.46 Changes ilPCT =

+ 0°F

+ 0°F Projected LBPCT based on these changes 600°F