ML20148K641

Forwards Proprietary Version of Computer Printout Re Low Pressure Turbine Disc Info.Printout Withheld (Ref 10CFR2.790).Vendor Affidavit for Withholding Info Encl

ML20148K641
Person / Time
Site:	Zimmer
Issue date:	12/01/1980
From:	Borgmann E CINCINNATI GAS & ELECTRIC CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
Shared Package
ML20148K646	List: ML20148K641
References
NUDOCS 8012050389
Download: ML20148K641 (9)

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[t*.W THE CINCINNATI GAS & ELECTRIC COhfPANY cr:W's U '"Jgm ' ' =

• CINCINN ATI,oHlo 4 52o1 E. A. DORG M AN N  !

somc,a vic e ear s.oc ~r Docket No. 50-358 December 1, 1980 Mr. Harold Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555 RE: WM. H. ZIMMER NUCLEAR POWER STATION - i UNIT 1 - LP TURBINE DISC INFORMATION_

Dear Mr. Denton:

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Mr. R. L. Tedesco's letter dated September 10, 1980 requested Zimmer LP turbine disc information. I am submitting under separate cover a response to that letter which contains information proprietary to the Westinghouse Electric Corporation.

Purruant to 10 C.F.R. Section 2.790 (b) (1) , enclosed herewith is an Application for Withholding Proprietary Infromation From Public Disclosure, together with an affidavit supplied by Westinghouse Electric Corporation. Also enclosed are six copics of the response to the September 10, 1980 letter with the information for which proprietary treatment is claimed deleted.

Very truly yours,

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THE CINCINNATI GAS & ELECTRIC COMPANY THIS DOCUMENT CONTAINS P00R QUAUTY PAGES v-g6'g C*- L g

n o E. A. BORGMANN rn p :.3 d'4 Senior Vice President EAB: dew M i Enclosure $

5 cc: Charles Bechhoefer David K. Martin l' .jf Glenn O. Bright Robert A. Jones ,, ,3 Frank F. Hooper Andrew B. Dennison g Troy B. Conner, Jr. af James P. Fenstermaker State of Ohio )

, Steven G. Smith County of Hamilton) l William J. Moran Sworn to and subscribed before me this J. Robert Newlin /g William G. Porter, Jr. ay of Deceder, 1980.

James D. Flynn F. T. Daniels W. Peter Heile f James H. Feldman, Jr. //N M U/Y A/ /uMM/

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John D. Woliver Mary Reder 8 012050 35$ b)NotaryPublic et "4 m '

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Y Westinghouse Power Generation steamTurbine omsion Electric Corporation Group lester BranchBox 9175 Philadelphia PennsyIVanla 19113 AW-80-30 November 24, 1980 Mr. Harold R. Denton, Director i Office of Operating Reai: tors Regulation 1 Attn: R. L. Tedesco, Asst. Dir.

of Licensing US NRC Washington, D.C. 20555 APPLICATION FOR WITHHOLDING PROPRIETARY

~ 1NFORMATION FROM PUBLIC DISCLOSURE l

SUBJECT:

Cincinnati Gas & Electric Co. - Zimmer Unit #1 Docket #50-358 Turbine Disc Material Properties I t

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Dear Mr. Tedesco:

This application for withholding is submitted by Westinghouse Electric l Corporation (" Westinghouse") pusuant to the provisions of paragraph (b)

(1) of Section 2.790 of the Commission's regulations. Withholding from i public disclosure is requested with respect to the subject information i which is further identified in the affidavit accompanying this I application.

1 The undersigned has reviewed the information sought to be withheld and is authorized to apply for its withholding on behalf of Westinghouse, STG.

The affidavit accompanying this application 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 Section 2.790 of the Commission's regulations.

Correspondence with respect to this application for withholding or the accompanying affidavit should be addressed to the undersigned.

Very truly yours,

~

(, W 4/di/ M E. 7 Barsness Lo Pressure Disc Task Force 4C0401c

M Ref: AW-80-30 AFFIDAVIT COMMONWEALTH OF PENNSYLVANIA COUNTY OF DELAWARE:

Before me, the undersigned authority, personally appeared R. W. Gaul, 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 Corporation (" Westinghouse") and that the averments of fact set forth in this Affidavit are true and correct to the best of his know-ledge, information, and belief:

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l' E. 'J. Barsness, Manager l l

l Low Pressure Disc Task Force 1 Subscribed and attested before me l on the 25th day of tlovember, 1980. '

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Ref: AW-80-30 i

(1) I cm Manager, in the Steam Turbine Generator Division of Westing- i house Electric Corporation and as such, I have been specifically i delegated the function of reviewing the proprietary information sought to be withheld from public disclosure in connection with f

nuclear power plant licensing, and am authorized to apply for its withholding on behalf of the Westinghouse Power Generation i

Divisions. l (2) I am making this Affidavit in conforraance with the provisions of 10 i i

CFR Section 2.790 cf the Commissio.i's regulations and in conjunct-ion with the Westinghouse application for withholding accompanying this Affidavit.

i (3) I have personal knowledge of the criteria and procedures utilized by Westinghouse Power Generation Divisions in designating inform- i ation 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 Cormiission in determining whether the inform-  !

I ation sought to be withheld from public dis. closure should be withheld l

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(i) The information sought io 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 i

by Westinghouse and not<tustomarily disclosed to the i

public. Westinghouse hat. a ra.tional basis for determin ngd l

the types of information custunarily held in confidence by

, it anc, in that connection, utilizes a system to determine ~

when and whether to hold certein types of inforrration in i

conficence. Tne application of that system amd the sub-  !

stance of that system constitutas Westinghouse pol'cy and  :

provides the rational basis required. f l

Vrder that systern, infortratior, is held in confitlence if it l falls in one or nare of several types, the release of which  !

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night result in the loss of an existing or potential corr: pet- '

itive advantege, as follon:

i (a) The information reveals the distinguishing aspects of a ,

process (or cornponent, structure, tool, method, etc.)

where prevention of its w,e by any of Westinghouse's competitors without license from Wastinghouse constit- I utes a competitive economic advantage cver other companies.  !

(b) It. consists of supporting data, including test data,  !

relative to a process {or component, structure, too'l, r

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h method, etc.), the application of which data secures d

ccmpetitive economic ad/ar,tage, e.g., by optimization a

or improved marketability.

r (c) Its use by a competitor would .redJce hiis expenditure or resources or improve his cc'mpetitive position in the design, manufacture, shipment, instaliation, assurance of quality, or licensing a similar product.

(d) It reveals cost or price information, production '

capacitie s,, budget levels, or commercial str. mies of I

Westinghcuse,, its customers or suppliers. . ;

i (e) It reveals aspects of past, present, or future Westing-house or customer funded development plans and programs, of potential commercial value to Westinghouse.

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(f) It contains patentable ideas, fcr which patent pr.)tect-i ion mcy be desirable, i i \

(g) It is not the property of Westirghouse, but must be i

treated as proprietary by Westinghouse according to f agreements with the . owner.

l (h) Public disclosure of this information nould allow unf air and untruthful judgrrents on the performance and k l

reliability of Westinghouse equipment components anc [

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improper comparison with sircilar components made by competitors.

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 competit-ors. 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 u:e of the infor-mation.

(c) Use by our competitor wauld 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 infor-mation, any one componeret may be the key to the entire puzzle, thereby depriving Westinghouse of a competitive advantage.

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-(e) Unrestricted disclosure would jeopardize the position of prominence of Westinghouse in the world' market, and thereby give a market advantage to the competition in those countries.

-(f) The Westinghouse capacity to invest corporate assets in research and maintaining a competitive advantage.

(iii) The information is being transmitted to the Commission in confidence and, under the provisions of 10 CFR Section 2.790, it is to be received in confidence by the Commission.

(iv) The information is not available in public sources to the best of our knowledge and belief.

I (v) The proprietary information sought to be withheld in this submittal is that which is appropriately marked and enclosed with the letter from E. A. Borgmann to H. R. Denton, dated )

l Dec. 1, 1980 concerning information ir, response to NRC J request for information relative to low pressure turbine disc integrity.

The information enables Westinghouse to:

(a) Develop test inputs and procedures to satisfactorily verify the design of Westinghouse supplied equipment.

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(b) Assist its customers to obtain licenses, i

Further, the information has substantial commercial value as follows:

(a) Westinghouse can sell the use of this information to customers.

(b) Westinghouse uses the information to verify the design of equipment which is sold to customers. l i

(c) Westinghouse e.rn sell services based upon the exper-ience gained and the test equipment and methods develo-ped.

Public disclosure of this information is likely to cause substantial harm to the competitive position of Westinghouse because it would enhance the ability of competitors to design, manufacture, verify, and sell electrici equipment for commercial turbine-generators without commensurate expenses. Also, public disclosure of the information would enable others having the same or similar equipment to use P

the information to meet NRC requirements for licensing documentation without purchasing the right to use the information.

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..a EXPLANATION OF L.P. TURBINE DISC INFORMATION- f COMPUTER PRINT OUTS' SECTION A - UNIT IDENTIFICATION '

l. Building Block' This is a generic' designation'for Westing- . '

. house Turbines. Each Building Block number represents a different machine in terms of design.-  :

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2. Unit - This is the name of the-particular unit for which r disc' properties are given. .

3. Customer - This is the owner of the above listed unit.  !

4. LP # - This indicates which low pressure rotor that .

particular disc as identified'by A5 & A6 has been installed j on.

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5. Location - Refers to which end (governor and generator) of  !

the rotor the' disc is on,.  ;

6. Disc # - This indicates which axial 10:ation the disc l occupies. The discs are numbered in sequence starting with the disc at the steam inlet to the low pressure turbine, i continuing until the exhaust. I

7. Test No. - This is the identification number stamped on disc.

SECTION B - MATERIAL PEOPERTIES (HUB)  !

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1. Type - This is a Westinghouse designation to identify different material specification for individual discs. Also  !

listed is the minimum yield strength specified for that. i type of disc. (in KSI units).

2. Supplier - This is the steel manufacture who supplied the j disc forging to Westinghouse. .

3. Y.S. (KSI) - Yield strength of the disc hub. l t

4. U.T.S. (KSI) - Ultimate strength of the disc hub. l l

5. Elongation - The elongatirn is given in %. i

6. R.A. -

This stands for the reduction in area.

7. FATT - The Fracture Appearance Transition Temperature.  ;

This is the temperature at which charpy impact specimen have a failure mode of 50% ductile and 50% brittle, r

t (O V E R) dN V5# U L -_ - _ . - . -_ _ _ _ - - - - - - - . - .

SECTION G - SERVICE DATA

1. Oper. Temp. Metal Temp. Hub (Deg. F) - This is the keyway metal temperature for that specific disc.

2. Estimated MAX DA/DT (in/hr.) - This is the crack growth rate for that specific disc. It is based on service experience and is a function of dise keyway metal temp.

and specific yield strength of each disc. A regressional analysis is done on this data and an upper bound curve is established with 90% confidence.

3. Estimated MAX DA/DT (in / month) - This is the same as above only using months instead of hours (730 hrs. / month).

SECTION H - INSPECTION STATUS

1. Operating time at inspection (hrs.) - This is the estimated operating hours on the rotor at the time of a U.T. disc inspection.

2. Keyway crack depth (max.) -

(in.) - This is the maximum depth of all cracked keyway in that specific disc. This depth includes the .060 due to U.T. instrumentation resolution.

3. Bore crack depth (max.) - (in.) - This is the maximum depth of all bore cracks in that specific disc. It also includes '

the .060 due to U.T. instrumentation resolution.

4. Disc status - This refers to any change that has been made to the disc proper. This includes keyway enlargement and disc removal.

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