Text

Supplement to License Amendment Request for Spent Fuel Pool Criticality Technical Specification Changes: Westinghouse-Prepared Response to RAI, CE-16-237, Attachment 2 (Enclosure 4)
	ML16144A808
Person / Time
Site:	Prairie Island
Issue date:	05/23/2016
From:	; Westinghouse
To:	; Office of Nuclear Reactor Regulation
Shared Package
ML16144A804	List: L-PI-16-040, Supplement to License Amendment Request for Spent Fuel Pool Criticality Technical Specification Changes: Westinghouse-Prepared Response to RAI, CE-16-237, Attachment 2 (Enclosure 4); ML16144A805; ML16144A806;
References
	CE-16-237, L-PI-16-040
	Download: ML16144A808 (14)
	v • d • e

L-P 1-16-040 NSPM Westinghouse-Pr epared RAJ Responses CE-16-237, Attachment 2 Non-Proprietary 5 pages follow

Westinghouse Non-Proprietary Class 3 CE-16-23 7, Attachment 2 Page I of5 The burnup requirement coefficients given in WCAP-17400-P, Revision 1, Tables S5-2 through S5-10, are derived, by a curve fitting procedure, using the results from a series of depletion calculations that conespond to a specific average fuel assembly burnup and fuel emichment. Provide the burnup values used to define the burnup requirement coefficients given in WCAP-17400, Revision 1, Tables S5-2 through S5-10, so that the validity of the coefficients can be confirmed.

Response

The response to RAI 1 pertains to the burnup requirement coefficients given in Reference 1, WCAP-17400-P, Supplement 1, Revision I, Tables S5-2 through SS-10. Tables 1 through 6 provide the actual calculated Burnup Requirements associated with the target keff values listed in Tables S4-l through S4-4 of WCAP-17400-P, Supplement 1, Revision 1. These values were used to define the burnup requirement coefficients given in WCAP -17400-P, Supplement 1, Revision 1, Tables S5-2, S5-4, SS-6, SS-8 and SS-10.

Table 1 Fuel Category 2 Determined Burnup Requirements (GWd/MTU)

Decay Time wt%23su (yr) 2.90 I 3.40 I 4.00 I 4.50 I 5.00 a,c

[ J Table 2 Fuel Category 3 Determined Burnup Requirements (GWd!MTU)

Decay Time wt% 235u (yr) 2.50 I 3.40 I 4.00 I 4.50 I 5.00 a,c L-Table 3 Fuel Category 4 Determined Burnup Requirements (GWd!MTU)

Decay Time wt% 235U (yr) 1.80 l 3.40 I 4.00 I 4.50 J 5.00

[

Westinghouse Non-Proprietmy Class 3 CE-16-237, Attachment 2 Page 2 of5 Table 4 Anay D, Category 5 Determined Burnup Requirements (GWd/MTU)

Decay Time wt% 235 U (yr) r-1.75 I 3.40 I 4.00 I 4.50 I 5.00 a,c I-- -

1---- -

1-- -

1---- -

L_

Table 5 At'I'ay G, Category 5 Determined Burn up Requirements (GWd/MTU)

Decay Time wt% 235 U (yr) r--

1.80 I 3.40 I 4.00 I 4.50 J. 5.00 a,c I-- -

I-- -

1--- -

I-- -

Table 6 Fuel Category 6 Determined Burnup Requirements (GWd/MTU)

Decay Time wt%23su (yr) r--

1.70 I 3.40 I 4.00 I 4.50 I 5.00 a,c f-- -

1---- -

Westinghouse Non-Proprietary Class 3 CE-16-237, Attachment 2 Page3 of5 The methodology used for fuel temperature modeling during depletion is unchanged relative to that approved by the NRC staff in WCAP-17400-P, Revision 0. However, the NRC staff notes that [

]"'c have changed, and these are inputs to the [

]"'c. Confirm that fuel temperature effects based on the new fuel design have been appropriately incorporated into the depletion analysis.

Response

Section 83.3.3.3 indicates that to be consistent with the current analysis of record (WCAP-17400-P), all

[

a,c ,

] Smce the values are updated conservatively in this analysis, Westinghouse confirms that the fuel temperature effects based on the new fuel design have been appropriately incorporated into the depletion analysis.

Westinghouse Non-Proprietary Class 3 CE-16-237, Attachment 2 Page 4 of5 To derive the assembly average power, [

]"'c Because of the potential for the fuel design change to impact the [

t*C, explain why the [

J"'c in WCAP-17400-P, Revision 1, remains valid.

Response

The [

WCAP-17400-P indicated a [

] a,c The planned EPU was discussed in WCAP-17400-P.

However, the EPU was never performed. The [

Westinghouse Non-Proprietary Class 3 CE-16-23 7, Attachment 2 Page 5 of5 WCAP-17400-P, Revision 1, Section S4.5.1.2, "Multiple Assembly Misload into the Storage Racks," states that the [

]"'c, results in a calculated k-effective less than 0.95. Confirm that [ t*c is not credited as part ofthis calculation as is stated in Section S3.7, "KENO Modeling Assumptions."

Response

Westinghouse confirms that [ ]a,c is not credited as part of the calculation as is stated in Section S3.7, "KENO Modeling Assumptions."

L-P 1-16-040 NSPM Westinghouse Affidavit CAW-16-4420 7 pages follow

Westinghouse Non-Proprietary Class 3

@Westinghouse Westinghouse Electric Company 1000 Westinghouse Drive Cranberry Township, Pennsylvania 16066 USA U.S. Nuclear Regulatory Commission Direct tel: (412) 374-4643 Document Control Desk Direct fax: (724) 940-8560 11555 Rockville Pike e-mail: greshaja @westinghouse.com Rockville, MD 20852 CAW~16-4420 May 16,2016 APPLICATION FOR WITHHOLDING PROPRIETARY INFORMATION FROM PUBLIC DISCLOSURE

Subject:

Suggested Responses to the Nuclear Regulatory Commission Request for Additional Information Concerning WCAP-17400-P, Supplement 1, Revision 1 for the Prairie Island Nuclear Generating Station License Amendment Request ML15327A244 (Proprietary)

The Application for Withholding Proprietary Information from Public Disclosure is submitted by Westinghouse Electric Company LLC (Westinghouse), pursuant to the provisions of paragraph (b)(1) of Section 2.390 of the Commission's regulations. It contains commercial strategic information proprietary to Westinghouse and customarily held in confidence.

The proprietary information for whiCh withholding is being requested in the above-referenced report is further identified in Affidavit CAW-16-4420 signed by the owner of the proprietary information, Westinghouse Electric Company LLC. The Affidavit, which accompanies this letter, sets fotth 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 Xcel Energy Incorporated.

Correspondence with respect to the proprietary aspects of the Application for Withholding or the Westinghouse Affidavit should reference CAW-16-4420, and should be addressed to James A. Gresham, Manager, Regulatory Compliance, Westinghouse Electric Company, 1000 Westinghouse Drive, Building 3 Suite 310, Cranberry Township, Pennsylvania 16066.

~a~ger Regulatory Compliance

CAW-16-4420 May 16,2016 AFFIDAVIT COMMONWEALTH OF PENNSYLVANIA:

ss COUNTY OF BUTLER:

I, James A. Gresham, am 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 my knowledge, information, and belief.

J1Ulles A. Gresham, Manager Regulatory Compliance

2 CAW-16-4420 (1) I am Manager, Regulatory Compliance, 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) I 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 ce1iain types of information in confidence. The application of that system and the substance of that system constitute Westinghouse policy and provide the rational basis required.

Under that system, info1mation 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 CA W-16-4420 Westinghouse's competitors without license from Westinghouse constitutes a competitive economic advantage over other companies.

(b) It consists of suppmting 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 ofWestinghouse, 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.

(iii) 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 CA W-16-4420 (d) Each component of proprietary information pettinent 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.

(iv) The information is being transmitted to the Commission in confidence and, under the provisions of 10 CFR Section 2.390, is to be received in confidence by the Commission.

(v) The information sought to be protected is not available in public sources or available infotmation has not been previously employed in the same original manner or method to the best of our knowledge and belief.

(vi) The proprietary information sought to be withheld in this submittal is that which is appropriately marked in NF-XCEL-16-41 P-Attachment, "Suggested Responses to the Nuclear Regulatory Commission Request for Additional Information Concerning WCAP-17400-P, Supplement 1, Revision 1 for the Prairie Island Nuclear Generating Station License Amendment Request ML15327A244" (Proprietary), for submittal to the Commission, being transmitted by Xcel Energy Incorporated 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 approval ofWCAP-17400-P/WCAP-17400-NP, Supplement 1, Revision 1, and may be used only for that purpose.

(a) This information is part of that which will enable Westinghouse to obtain NRC approval ofWCAP-17400-P/WCAP-17400-NP, Supplement 1, Revision 1,

5 CA W-16-4420 "Prairie Island Units 1 and 2 Spent Fuel Pool Criticality Safety Analysis Supplemental Analysis for the Storage ofiFBA Bearing Fuel."

(b) Fmther, this information has substantial commercial value as follows:

(i) Westinghouse plans to sell the use of similar information to its customers for the purpose of demonstrating the sub-criticality of the spent fuel pool.

(ii) Westinghouse can sell support and defense of industry guidelines and acceptance criteria for plant-specific applications.

(iii) 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 technical evaluation justifications 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 effmt, having the requisite talent and experience, would have to be expended.

Further the deponent sayeth not.

PROPRIETARY INFORMATION NOTICE Transmitted herewith are proprietary and non-proprietary versions of a document, 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 I 0 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.