ML20056H071

Requests That Proprietary RCS Flow Calorimetric Instrumentation Uncertainty Tables for Normalization to Single RCS Flow Calorimetric, Be Withheld Per 10CFR2.790(b)(4)

ML20056H071
Person / Time
Site:	Sequoyah
Issue date:	05/05/1993
From:	Liparulo N WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:	Murley T NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML19310D676	List: ML20056H067 ML20056H071
References
CAW-93-464, NUDOCS 9309080177
Download: ML20056H071 (11)

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Westinghouse Energy Systems Box 355 Eleetric Corporation Pmsburgi Pennsylvania 15230 0355 i

May 5,1993 i

CAW-93-464 Document Control Desk US Nuclear Regulatory Commission Washington, DC 20555 Attention: Dr. Thomas Murley, Director t

APPLICATION FOR WITHHOLDING PROPRIETARY INFORMATION FROM PUBLIC DISCLOSURE

Subject:

"RCS Flow Calorimetric Instrumentation Uncertainty Tables for Normalization to a Single RCS l

Flow Calorimetric"

Dear Dr. Murley:

e The proprietary information for which withholding is being requested in the above-referenced letter is further identified in Affidavit CAW-93-464 signed by the owner of the proprietary information, Westinghouse Electric Corporation. 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 th::

considerations listed in paragraph (b)(4) of 10 CFR Section 2.790 of the Commission's regulations.

Accordingly, this letter authorizes the utilization of the accompanying Affidavit by Tennessee Valley Authority.

Correspondence with respect to the proprietary aspects of the application for withholding or the Westinghouse affidavit should reference this letter, CAW-93-464, and should be addressed to the undersigned.

Very truly yours, N. J. Lipar

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Enclosures Nuclear Safety & Regulatory Activities cc: Kevin Bohrer/NRC (12H5) 9309080177 930903 C

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CAW-93-464 AFFIDAVIT COMMONWEALTH OF PENNSYLVANIA:

ss COUNTY OF ALLEGHENY:

Before me, the undersigned authority, personally appeared Henry A. Sepp, who, being by me duly sworn according to law, deposes and says that he is authorized to execute this Af6 davit on behalf of Westinghouse Electric Corporation (" Westinghouse") and that the averments of fact set forth in this Affidavit are truc :md correct to the best of his knowledge, information, and belief:

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Henry A. Sepp, Manage /% \\-

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r Strategic Licensing issues Sworn to and subscribed before me this day of Y7/h

,1993 f

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. CAW-93-464 (1)

I am Manager, Strategic Licensing Issues, in the Nuclear and Advanced Tecimology Divisions, of the Westinghouse Electric Corporation 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 rulemaking proceedings, and am authorized to apply for its withholding on behalf of the Westinghouse Energy Systems Business Unit.

(2)

I am making this Affidavit in conformance with the provisions of 10CFR Section 2.790 of the I

Commission's regulations and in conjunction with the Westinghouse application for withholding accompanying this Affidavit.

l (3)

I have personal knowledge of the criteria and procedures utilized by the Westinghouse Energy Systems Business Unit in designating information as a trade secret, privileged or as confidential commercial or financial information.

i (4)

Pursuant to the provisions of paragraph (b)(4) of Section 2.790 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.

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(i)

The information sought to be withheld from public disclosure is owned and has been held in confidence by Westinghouse.

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(ii)

The information is of a type customarily held in confidence by Westinghouse and not I

customarily disclosed to the public. Westinghouse has a rational basis for determining l

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 l

competitive advantage, as follows:

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<,. CAW-93-464 i

I (a)

The information reveals the distinguishing aspects of a process (or component, structure, tool, method, etc.) where prevention of its use by any of Westinghouse's competitors without license from Westinghouse constitutes a I

competitive economic advantage over other companies.

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(b)

It consists of supponing data, including test data, relative to a process (or component, structure, tool, method, etc.), the application of which data l

secures a competitive economic advantage, e.g., by optimization or improved i

I marketability.

(c)

Its use by a competitor would reduce his expenditure of resources or improve j

i his competitive position in the design, manufacture, shipment, installation, assurance of quality, or licensing a similar product.

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(d)

It reveals cost or price information, production capacities, budget levels, or

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commercial strategies of Westinghouse, its customers or suppliers.

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l (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.

l 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 which 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.

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, CAW-93-464 t

r (c)

Use by our competitor would put Westinghouse at a competitive disadvantage by reducing his expenditure of resources at our expense.

(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 dcpriving 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.

t (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 10CFR Section 2.790, it is to be received in confidence by the Commission.

i (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 ou-knowledge and belief.

(v)

The proprietary information sought to be withheld in this submittal is that which is i

appropriately marked in "RCS Flow Calorimetric Instrumentation Uncertainty Tables for Normalization to a Single RCS Flow Calorimetric", for the Sequoyah Nuclear Power Station, being transmitted by the Tennessee Valley Authority (TVA) letter and Application for Withholding Proprietary Information from Public Disclosure, to e

Document Control Desk, Attention Dr. Thomas Murley. The proprietary inforrr Qu as submitted for use by Tennessee Valley Authority for the Sequoyah Nuclear Power i

Station is expected to be.tpplicable in other licensee submittals in response to certain NRC requirements for justification of plant-specific calculations for the uncertainties 077tC-LYT 44Whs93

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. CAW-93-464 associated with the measurement / verification of RCS flow as required in the Sequoyah Technical Specifications.

This information is part of that which will enable Westinghouse to:

(a)

Provide documentation of the analyses, methods, and acceptability of previous examples wherein the measurement / verification of RCS flow was used for determination of the acceptability of the reactor protection system setpoint for this parameter.

(b)

Establish the relationships between various channel instrument error components and various channel instrument error allowances inasmuch as they are statistically dependent or independent.

(c)

Establish the instrument uncertainties for the measurement / verification of RCS i

l flow in terms of total uncertainty and normal, two-sided standard deviation imcertainty for each parameter.

(d)

Assist the customer to obtain NRC approval.

l Further this information has substantial commercial value as follows:

(a)

Westinghouse plans to sell the use of similar information to its customers for purposes of meeting NRC requirements for licensing documentation.

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(b)

Westinghouse can sell support and defense of the analysis and methodology to its customers.

l Public disclosure of this proprietary information is likely to cause substantial harm to

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the competitive position of Westinghouse because it would enhance the ability of competitors to provide similar analytical and licensing documentation and licensing defense services for commercial power reactors without commensurate expenses.

Also, public disclosure of the information would enable others to use the information l

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. CAW-93-464 i

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to meet NRC requirements for licensing documentation without purchasing the right to i

use the information.

i 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 7

technical programs would have to be performed and a significant manpower effort,-

having the requisite talent and experience, would have to be expended for developing analytical methods and receiving NRC approval for those methods.

Further the deponent sayeth not.

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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 2.790 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) contained within parentheses 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 2.790(b)(1),

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Copyright Notice i

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 repons which are necessary for its internal use f

in connection with generic and plant-specific reviews and approvals as well as the issuance, denial, j

amendment, transfer, renewal, modification, suspension, revocation, or violation of a license, permit, order, I

or regulation subject to the requirements of 10 CFR 2.790 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 I

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 r. We public document room in Washington, DC and in local public document rooms as may be required by NE regulations if the number of copies I

submitted is insufficient for this purpose. The NRC is not authorized to make copies for the personal use f

of members of the public who make use of the NRC public document rooms. Copies made by the NRC must

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include the copyright notice in all instances and the proprietary notice if the original was identified as f

proprietary.

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I ENCLOSURE 4 i

i PRAIRIE ISLAND NUCLEAR PLANT FLOW DATA f

FOR ELBOW TAP FLOW MEASUREMENT TEST-1

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im 355 P!rst:u~g!1 Fev.sylvania 15230 0315 l

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F5E/WGL-2084 February 19, 1993 Mr. Keith Weller-1 TVA, Sequoyah Plant

-l FAX: 615-843-8750 t

Subject:

Prairie Island LEFM and Elbow Tap Data Comparison

Dear Keith,

The following confirms the data given to you by telephone earlier today. -It is understood that the NRC may request this data in connection with review of i

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the use of elbow taps for flow verification.

Elbow tap and LEFM data (listed below) was obtained at Prairie Island Unit 2 in 1974 and 1981 when one and two reactor coolant pumps were operating, to confirm that elbow taps and LEFM measure the same flow ratios for one vs two The LEFM flow rati6 can be calculated directly, while the pumps operating.

The elbow elbow tsp f^ low ratio is based on the square root of the dp ratio.

j tap data is aivan in volts, where zero to full span dp corresponds to 0.1 to 0.5 volts. To obtain the correct dp ratio, elbow tap voltagus must be reduced by 0.1 volt. The elbow tap flow ratio is calculated with the equation Flow ratio = ([ volts - 0.1]1 pump on + [ volts - 0.1]2 pumps onM f

12/74 07/81 f

DATA A

B.

A B

Loop LEFM flow, I pump, gpm 107000 108200 107379 106599 2 pumps 38900 99700 99484 98520 LEFM Flow ratio, 1/2 pumps 1.0819 1.0852 1.0794 1.0820

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3 Elbow tap dp, I pump, volts 0.3934 0.3733 0.4795 0.4731 2 pumps 0.3526 0.3311~

-0.4244 0.4187-i 1.077[

1.0875 1.0816 1.0820

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Elbow tap Flow ratio,1/2 pumps Difference, %

0.39 0.21 0.20 0.00-The differences listed above are relatively small, so the data confirms that 1

elbow tap and LEFM flow ratios are the same in this flow range.-

$b W. G. Lyman, Consulting Engineer Fluid Systems Engineering l

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