ET 12-0001, Supplemental Information Related to Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.6.5, Core Operating Limits Report, for Large Break Loss-of-Coolant Accident Analysi
| ML12039A091 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 01/31/2012 |
| From: | Broschak J Wolf Creek |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| ET 12-0001 | |
| Download: ML12039A091 (14) | |
Text
W0LF CREEK NUCLEAR OPERATING CORPORATION John P. Broschak Vice President Engineering January 31, 2012 ET 12-0001 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555
Reference:
- 3) Letter ET 11-0010, dated October 19, 2011, from R. P.
Subject:
Docket No.
50-482:
Supplemental Information Related to Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.6.5, "CORE OPERATING LIMITS REPORT (COLR)," for Large Break Loss-of-Coolant Accident Analysis Methodology Gentlemen:
Reference 1 provided Wolf Creek Nuclear Operating Corporation's (WCNOC) application to revise Technical Specification (TS) 5.6.5, "CORE OPERATING LIMITS REPORT (COLR)," to replace the existing large break loss-of-coolant accident (LOCA) analysis methodology (WCAP-10266-P-A) with a best estimate large break LOCA analysis based on WCAP-16009-P-A, "Realistic Large Break LOCA Evaluation Methodology Using Automated Statistical Treatment of Uncertainty Method (ASTRUM)."
Reference 2 provided a request for additional information related to the application.
Reference 3 provided WCNOC's response to the request for additional information.
During a teleconference on December 19, 2011, the NRC requested supplemental information to support the response to Question 2.d of Reference 3. Specifically, the NRC requested the following:
P.O. Box 411 / Burlington, KS 66839 / Phone: (620) 364-8831 An Equal Opportunity Employer M/F/HCNET p(...,I1 7
ET 12-0001 Page 2 of 3 Provide clarification on how Westinghouse Electric Company determined if an increased number of circumferential downcomer noding stacks is necessary for a specific plant model and ASTRUM analysis. More specifically, for the Wolf Creek Generating Station (WCGS),
how did Westinghouse Electric Company determine that four circumferential noding stacks are sufficient to model the downcomer response for WCGS? What process does Westinghouse Electric Company use to confirm that this approach is correct?
Enclosure I provides the proprietary Westinghouse Electric Company LLC Attachment 1A of LTR-LIS-12-24, Revision 1, "Suggested Response to Additional NRC RAI for Wolf Creek BELOCA Project," in response to the requested supplemental information.
Enclosure II provides the non-proprietary Westinghouse Electric Company LLC Attachment 1B of LTR-LIS-12-24, Revision 1, "Suggested Response to Additional NRC RAI for Wolf Creek BELOCA Project." As Enclosure I contains information proprietary to Westinghouse Electric Company LLC, it is supported by an affidavit signed by Westinghouse Electric Company LLC, the owner of the information. The affidavit sets forth the basis on which the information may be withheld from public disclosure by the Commission and addresses with specificity the considerations listed in paragraph (b)(4) of 10 CFR 2.390 of the Commission's regulations. Accordingly, it is respectfully requested that the information, which is proprietary to Westinghouse, be withheld from public disclosure in accordance with 2.390 of the Commission's regulations. This affidavit, along with Westinghouse authorization letter, CAW-12-3371, "Application for Withholding Proprietary Information from Public Disclosure," is contained in Enclosure Ill.
The additional information does not expand the scope of the application as originally noticed, and does not impact the conclusions of the Nuclear Regulatory Commission (NRC) staff's original proposed no significant hazards consideration determination as published in the Federal Register (75 FR 81673).
In accordance with 10 CFR 50.91, a copy of this submittal is being provided to the designated Kansas State official.
This letter contains no commitments. If you have any questions concerning this matter, please contact me at (620) 364-4085, or Mr. Gautam Sen at (620) 364-4175.
Sincerely, JJohnP Broschak JPB/rlt
Enclosure:
I A of LTR-LIS-12-24, Revision 1 "Suggested Response to Additional NRC RAI for Wolf Creek BELOCA Project" (Proprietary)
II B of LTR-LIS-12-24, Revision 1, "Suggested Response to Additional NRC RAI for Wolf Creek BELOCA Project" (Non-Proprietary)
Ill CAW-12-3371, "Application for Withholding Proprietary Information from Public Disclosure" cc:
E. E. Collins (NRC), w/e T. A. Conley (KDHE), w/e II J. R. Hall (NRC), w/e N. F. O'Keefe (NRC), w/e Senior Resident Inspector (NRC), w/e
ET 12-0001 Page 3 of 3 STATE OF KANSAS COUNTY OF COFFEY
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John P. Broschak, of lawful age, being first duly sworn upon oath says that he is Vice President Engineering of Wolf Creek Nuclear Operating Corporation; that he has read the foregoing document and knows the contents thereof; that he has executed the same for and on behalf of said Corporation with full power and authority to do so; and that the facts therein stated are true and correct to the best of his knowledge, information and belief.
By_
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- ý John
/.roschak '
ViceP esident Engineering SUBSCRIBED and sworn to before me this -ý I day of iJ"Qn Lkc..*
,2012.
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GAYLE SHEPHEARD 0&Notary Public - State of Kansas My Appt. Expires 7 i
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Enclosure II to ET 12-0001 Enclosure II (2 pages)
Westinghouse Electric Company LLC, Attachment lB of LTR-LIS-12-24, Revision 1, "Suggested Response to Additional NRC RAI for Wolf Creek BELOCA Project" (Non-Proprietary)
Westinghouse Non-Proprietary Class 3 B to LTR-LIS-12-24 Revision 1 (Page 1 of 2)
Suggested Response to Additional NRC RAI for Wolf Creek BELOCA Project Preface:
The initial RAIs were addressed in LTR-LIS-1 1-541 and provided to the NRC in Wolf Creek Letter ET 11-0010, dated October 19, 2011 (NRC ADAMS Accession # ML11312A137). Since, the additional RAI has been requested:
Provide clarification on how we determine if an increased number of circumferential downcomer noding stacks is necessary for a specific plant model and ASTRUM analysis. More specifically for Wolf Creek, how did Westinghouse determine that four circumferential noding stacks are sufficient to model the downcomer response-for Wolf Creek? What process does Westinghouse use to confirm that this approach is correct?
The Licensing Amendment Request (LAR) Document being NRC reviewed is Wolf Creek Letter ET 10-0025, Docket No. 50-482, License No. NPF-42, November 4, 2010 (NRC ADAMS Accession #
©2012 Westinghouse Electric Company LLC All Rights Reserved
Westinghouse Non-Proprietary Class 3 B to LTR-LIS-12-24 Revision 1 (Page 2 of 2)
RAI:
Provide clarification on how we determine if an increased number of circumferential downcomer noding stacks is necessary for a specific plant model and ASTRUM analysis. More specifically for Wolf Creek, how did Westinghouse determine that four circumferential noding stacks are sufficient to model the downcomer response for Wolf Creek? What process does Westinghouse use to confirm that this approach is correct?
Response
As described in the response to RAI #9 in Reference 1, the results of the CCTF Test 62, UPTF Test 6, and UPTF Test 25A simulations for the approved CQD methodology are described in Sections 14-2-6-1, 14-4-5 through 14-4-9, and 14-4-11 of the CQD (Reference 2), respectively. The as-approved methodology includes a single downcomer channel stack per loop, and is considered to be sufficient.
At times, recent Westinghouse BELOCA analyses have modeled three downcomer channel stacks per loop. The results of the above simulations with three downcomer channel stacks per loop are described in Reference 3. [
]a,c Reference(s):
- 2. Bajorek, S. M., et al., March 1998, "Code Qualification Document for Best Estimate LOCA Analysis," Volume 1 Revision 2, and Volumes 2 through 5, Revision 1, WCAP-12945-P-A (Proprietary).
- 3.
Letter from Jensen, J. N. to USNRC, December 27, 2007, "License Amendment Request Regarding Large Break Loss-of-Coolant Accident Analysis Methodology," Enclosure 3, AEP:NRC:7565-01.
Enclosure III to ET 12-0001 Enclosure Il (7 pages)
Westinghouse Electric Company LLC, CAW-12-3371, "Application for Withholding Proprietary Information from Public Disclosure"
(
Westinghouse U.S. Nuclear Regulatory Commission Document Control Desk 11555 Rockville Pike Rockville, MD 20852 Westinghouse Electric Company Nuclear Services 1000 Westinghouse Drive Cranberry Township, Pennsylvania 16066 USA Direct tel: (412) 374-4643 Direct fax: (724) 720-0754 e-mail: greshaja@westinghouse.com Proj letter: SAP-12-7, Rev. 1 CAW-12-3371 January 25, 2012 APPLICATION FOR WITHHOLDING PROPRIETARY INFORMATION FROM PUBLIC DISCLOSURE
Subject:
LTR-LIS-12-24 Revision 1, Attachment 1A, "Suggested Response to Additional NRC RAI for Wolf Creek BELOCA Project" (Proprietary)
The proprietary information for which withholding is being requested in the above-referenced report is further identified in Affidavit CAW-12-3371 signed by the owner of the proprietary information, Westinghouse Electric Company LLC. The affidavit, which accompanies this letter, sets forth the basis on which the information may be withheld from public disclosure by the Commission and addresses with specificity the considerations listed in paragraph (b)(4) of 10 CFR Section 2.390 of the Commission's regulations.
Accordingly, this letter authorizes the utilization of the accompanying affidavit by Wolf Creek Nuclear Operating Corporation (WCNOC).
Correspondence with respect to the proprietary aspects of the application for withholding or the Westinghouse affidavit should reference this letter, CAW-12-3371, and should be addressed to J. A. Gresham, Manager, Regulatory Compliance, Westinghouse Electric Company, Suite 428, 1000 Westinghouse Drive, Cranberry Township, Pennsylvania 16066.
Very truly yours, J. A. Gresham, Manager Regulatory Compliance Enclosures
CAW-12-3371 AFFIDAVIT COMMONWEALTH OF PENNSYLVANIA:
ss COUNTY OF BUTLER:
Before me, the undersigned authority, personally appeared J. A. Gresham, who, being by me duly sworn according to law, deposes and says that he is authorized to execute this Affidavit on behalf of Westinghouse Electric Company LLC (Westinghouse), and that the averments of fact set forth in this Affidavit are true and correct to the best of his knowledge, information, and belief:
A. Gresham, Manager Regulatory Compliance Sworn to and subscribed before me this 25th day of January 2012 COMMONWEALTH OF PENNSYLVANIA Notarial Seal Cynthia Olesky, Notary Public Manor Boro, Westmoreland County My Commission Expires July 16, 2014 Member. Pennsylvania Association of Notaries
2 CAW-12-3371 (1)
I am Manager, Regulatory Compliance, in Nuclear Services, Westinghouse Electric Company LLC (Westinghouse), and as such, I have been specifically delegated the function of reviewing the proprietary information sought to be withheld from public disclosure in connection with nuclear power plant licensing and rule making proceedings, and am authorized to apply for its withholding on behalf of Westinghouse.
(2)
I am making this Affidavit in conformance with the provisions of 10 CFR Section 2.390 of the Commission's regulations and in conjunction with the Westinghouse Application for Withholding Proprietary Information from Public Disclosure accompanying this Affidavit.
(3) 1 have personal knowledge of the criteria and procedures utilized by Westinghouse in designating information as a trade secret, privileged or as confidential commercial or financial information.
(4)
Pursuant to the provisions of paragraph (b)(4) of Section 2.390 of the Commission's regulations, the following is furnished for consideration by the Commission in determining whether the information sought to be withheld from public disclosure should be withheld.
(i)
The information sought to be withheld from public disclosure is owned and has been held in confidence by Westinghouse.
(ii)
The information is of a type customarily held in confidence by Westinghouse and not customarily disclosed to the public. Westinghouse has a rational basis for determining the types of information customarily held in confidence by it and, in that connection, utilizes a system to determine when and whether to hold certain types of information in confidence. The application of that system and the substance of that system constitutes Westinghouse policy and provides the rational basis required.
Under that system, information is held in confidence if it falls in one or more of several types, the release of which might result in the loss of an existing or potential competitive advantage, as follows:
(a)
The information reveals the distinguishing aspects of a process (or component, structure, tool, method, etc.) where prevention of its use by any of
3 CAW-12-3371 Westinghouse's competitors without license from Westinghouse constitutes a competitive economic advantage over other companies.
(b)
It consists of supporting data, including test data, relative to a process (or component, structure, tool, method, etc.), the application of which data secures a competitive economic advantage, e.g., by optimization or improved marketability.
(c)
Its use by a competitor would reduce his expenditure of resources or improve his competitive position in the design, manufacture, shipment, installation, assurance of quality, or licensing a similar product.
(d)
It reveals cost or price information, production capacities, budget levels, or commercial strategies of Westinghouse, its customers or suppliers.
(e)
It reveals aspects of past, present, or future Westinghouse or customer funded development plans and programs of potential commercial value to Westinghouse.
(f)
It contains patentable ideas, for which patent protection may be desirable.
There are sound policy reasons behind the Westinghouse system which include the following:
(a)
The use of such information by Westinghouse gives Westinghouse a competitive advantage over its competitors. It is, therefore, withheld from disclosure to protect the Westinghouse competitive position.
(b)
It is information that is marketable in many ways. The extent to which such information is available to competitors diminishes the Westinghouse ability to sell products and services involving the use of the information.
(c)
Use by our competitor would put Westinghouse at a competitive disadvantage by reducing his expenditure of resources at our expense.
4 CAW-12-3371 (d)
Each component of proprietary information pertinent to a particular competitive advantage is potentially as valuable as the total competitive advantage. If competitors acquire components of proprietary information, any one component may be the key to the entire puzzle, thereby depriving Westinghouse of a competitive advantage.
(e)
Unrestricted disclosure would jeopardize the position of prominence of Westinghouse in the world market, and thereby give a market advantage to the competition of those countries.
(f)
The Westinghouse capacity to invest corporate assets in research and development depends upon the success in obtaining and maintaining a competitive advantage.
(iii)
The information is being transmitted to the Commission in confidence and, under the provisions of 10 CFR Section 2.390, it is to be received in confidence by the Commission.
(iv)
The information sought to be protected is not available in public sources or available information has not been previously employed in the same original manner or method to the best of our knowledge and belief.
(v)
The proprietary information sought to be withheld in this submittal is that which is appropriately marked in LTR-LIS-12-24 Revision 1, Attachment IA, "Suggested Response to Additional NRC RAI for Wolf Creek BELOCA Project" (Proprietary) for submittal to the Commission, being transmitted by Wolf Creek Nuclear Operating Corporation letter and Application for Withholding Proprietary Information from Public Disclosure, to the Document Control Desk. The proprietary information as submitted by Westinghouse is that associated with Westinghouse's request for NRC review and may be used only for that purpose.
5 CAW-12-3371 This information is part of that which will enable Westinghouse to:
(a)
Obtain NRC review of Westinghouse responses to Requests for Additional Information to support the licensing of the Wolf Creek BELOCA analysis.
Further this information has substantial commercial value as follows:
(a)
Westinghouse plans to sell the use of the information to its customers for the purpose of licensing the Wolf Creek BELOCA analysis.
(b)
Westinghouse can sell support and defense of the use of the BELOCA criteria.
(c)
The information requested to be withheld reveals the distinguishing aspects of a methodology which was developed by Westinghouse.
Public disclosure of this proprietary information is likely to cause substantial harm to the competitive position of Westinghouse because it would enhance the ability of competitors to provide similar calculations and licensing defense services for commercial power reactors without commensurate expenses. Also, public disclosure of the information would enable others to use the information to meet NRC requirements for licensing documentation without purchasing the right to use the information.
The development of the technology described in part by the information is the result of applying the results of many years of experience in an intensive Westinghouse effort and the expenditure of a considerable sum of money.
In order for competitors of Westinghouse to duplicate this information, similar technical programs would have to be performed and a significant manpower effort, having the requisite talent and experience, would have to be expended.
Further the deponent sayeth not.
PROPRIETARY INFORMATION NOTICE Transmitted herewith are proprietary and/or non-proprietary versions of documents furnished to the NRC in connection with requests for generic and/or plant-specific review and approval.
In order to conform to the requirements of 10 CFR 2.390 of the Commission's regulations concerning the protection of proprietary information so submitted to the NRC, the information which is proprietary in the proprietary versions is contained within brackets, and where the proprietary information has been deleted in the non-proprietary versions, only the brackets remain (the information that was contained within the brackets in the proprietary versions having been deleted). The justification for claiming the information so designated as proprietary is indicated in both versions by means of lower case letters (a) through (f) located as a superscript immediately following the brackets enclosing each item of information being identified as proprietary or in the margin opposite such information. These lower case letters refer to the types of information Westinghouse customarily holds in confidence identified in Sections (4)(ii)(a) through (4)(ii)(f) of the affidavit accompanying this transmittal pursuant to 10 CFR 2.390(b)(1).
COPYRIGHT NOTICE The reports transmitted herewith each bear a Westinghouse copyright notice. The NRC is permitted to make the number of copies of the information contained in these reports which are necessary for its internal use in connection with generic and plant-specific reviews and approvals as well as the issuance, denial, amendment, transfer, renewal, modification, suspension, revocation, or violation of a license, permit, order, or regulation subject to the requirements of 10 CFR 2.390 regarding restrictions on public disclosure to the extent such information has been identified as proprietary by Westinghouse, copyright protection notwithstanding. With respect to the non-proprietary versions of these reports, the NRC is permitted to make the number of copies beyond those necessary for its internal use which are necessary in order to have one copy available for public viewing in the appropriate docket files in the public document room in Washington, DC and in local public document rooms as may be required by NRC regulations if the number of copies submitted is insufficient for this purpose. Copies made by the NRC must include the copyright notice in all instances and the proprietary notice if the original was identified as proprietary.