ML12313A206

Submittal of Extended Power Uprate Power Ascension Testing Information in Accordance with Operating License Condition 2.3.(20)(a)3 and 2.C.(20)(b)3

ML12313A206
Person / Time
Site:	Nine Mile Point
Issue date:	10/26/2012
From:	Swift P Constellation Energy Group, EDF Group, Nine Mile Point
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
TAC ME1476
Download: ML12313A206 (2)

Text

This letter forwards proprietary information in accordance with 10 CFR 2.390. The balance of this letter may be considered non-proprietary upon removal of Attachment 4.

CENG a joint venture of Constellation eo eDF Enetwgy1Z P.O. Box 63 Lycoming, NY 13093 NINE MILE POINT NUCLEAR STATION October 26, 2012 U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 ATTENTION:

SUBJECT:

Document Control Desk Nine Mile Point Nuclear Station Unit No. 2; Docket No. 50-410 Submittal of Extended Power Uprate Power Ascension Testing Information in Accordance with Operating License Conditions 2.C.(20)(a)3 and 2.C.(20)(b)3

REFERENCES:

(a) Letter from R. V. Guzman (NRC) to K. Langdon (NMPNS), dated December 22, 2011, Nine Mile Point Nuclear Station, Unit No. 2 - Issuance of Amendment Re:

Extended Power Uprate (TAC No. ME 1476)

(b) Letter from P. M. Swift (NMPNS) to Document Control Desk (NRC), dated September 26, 2012, Submittal of Extended Power Uprate Steam Dryer Power Ascension Testing Information in Accordance with Operating License Conditions 2.C.(20)(b)5 and 2.C.(20)(e)

By letter dated December 22, 2011 (Reference a), the NRC issued Amendment No. 140 to Renewed Facility Operating License No. NPF-69 for Nine Mile Point Unit 2 (NMP2). The amendment authorized an increase in the maximum steady-state reactor core power level for NMP2 to 3,988 megawatts thermal (MWt). This letter provides power ascension testing information in accordance with the following NMP2 license conditions associated with the issuance of Amendment No. 140:

License Condition 2.C.(20)(a)3 - "After completion of the full EPU test plateau (approximately 120 percent OLTP or 115 percent CLTP), the licensee shall provide the NRC a full startup test report and final [steam dryer] stress report within 90 days."

License Condition 2.C.(20)(b)3 -

"After reaching EPU conditions, NMPNS shall obtain measurements from the MSL strain gages and establish the steam dryer flow-induced vibration load fatigue margin for the facility, update the dryer stress report, and re-establish the limit curves with the updated ACM load definition, which will be provided to the NRC staff."

This letter forwards proprietary information in accordance with 10 CFR 2.390. The balance of this letter may be considered non-proprietary upon removal of Attachment 4.

AOD(

Document Control Desk October 26, 2012 Page 2 The information required by these license conditions is provided in the attachments to this letter. The extended power uprate (EPU) power ascension test report is provided in Attachment 1. Attachment 2 (non-proprietary) and Attachment 4 (proprietary) provide the final steam dryer stress report. The re-established steam dryer limit curves with the updated ACM load definition that are required by License Condition 2.C.(20)(b)3 were previously submitted in the NMPNS letter dated September 26, 2012 (Reference b).

In Reference (b), Nine Mile Point Nuclear Station, LLC (NMPNS) submitted EPU steam dryer power ascension testing information. The discussion provided in Attachment 2 of Reference (b) identified that the maximum measured steam flow of 17.33E06 lbm/hr at the EPU rated thermal power of 3988 MWt was less than the design basis reactor rated heat balance value of 17.636E06 Ibm/hr. This observed test program condition is discussed in Section 5.2 of the power ascension test report (Attachment 1). is considered to contain proprietary information exempt from public disclosure pursuant to 10 CFR 2.390. Therefore, on behalf of Continuum Dynamics, Incorporated (CDI), NMPNS hereby makes application to withhold Attachment 4 from public disclosure in accordance with 10 CFR 2.390(b)(1). The affidavit from CDI detailing the reasons for the request to withhold proprietary information is provided in.

This letter contains no new regulatory commitments. Should you have any questions regarding the information in this submittal, please contact John J. Dosa, Director Licensing, at (315) 349-5219.

Very truly yours, Paul M. Swift Manager Engineering Services PMS/DEV Attachments:

1. NMP2 Extended Power Uprate Power Ascension Test Report

2. Final Steam Dryer Stress Report, Continuum Dynamics, Incorporated Report No. 12-18NP (Non-Proprietary)

3.

Affidavit from Continuum Dynamics, Incorporated (CDI) Justifying Withholding Proprietary Information (CDI Report No.12-20P)

4. Final Steam Dryer Stress Report, Continuum Dynamics, Incorporated Report No.12-18P (Proprietary) cc:

Regional Administrator, Region I, NRC Project Manager, NRC Resident Inspector, NRC A. L. Peterson, NYSERDA (w/o Attachment 4)