ML20002A080

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Forwards Proprietary & Nonproprietary Info Re Cycle 2 Reload Application.Proprietary Info Withheld (Ref 10CFR2.790)
ML20002A080
Person / Time
Site: Calvert Cliffs Constellation icon.png
Issue date: 10/16/1978
From: Lundvall A
BALTIMORE GAS & ELECTRIC CO.
To: Reid R
Office of Nuclear Reactor Regulation
References
NUDOCS 7810180103
Download: ML20002A080 (48)
v • d • e


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a AFFIDAVIT PURSUANT TO 10 CFR 2.790 Combustion Engineering, Inc.

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State of Connecticut

)

County of Hartford

)

SS.:

I, P. L. McGill depose and say that I am the Vice President, Commercial, of Combustion Engineering, Inc., duly authorized to make this affidavit, and hav,e reviewed or caused to have reviewed the information which is identified as proprietary and referenced in the paragraph immediately below.

I am submitting this affidavit in conformance with the provisions of 10 CFR 2.790 of the Commission's regulations and in conjunction with the application of Baltimore Gas & Electric Company, for withholding this in~ formation.

The information for which propriatary treatment is sought is contained in the following document:

Response to NRC Questions on CEN101(B)-P Calvert Cliffs Unit 2 Cycle 2 Reload Submittal, Amendment 2-P.

This document has been appropriately designated as proprietary.

I have personal knowledge of the criteria and procedures utilized by Combustion Engineering in designating information as a trade secret, privileged or as confidential commercial or financial information.

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, included in the above referenced document, should be withheld.

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1.

The information sought to be withheld from public disclosure is t

l design and performance characteristics, which is owned and has been held in

,i confidence by Combustion Engineering.

j 2.

The information consists of test data or other similar data concerning a process, method or component, the application of which results i,

in a substantial competitive advantage to Combustion Engineering.

t 3.

The informatior, is of a type customarily held in confidence by Combustion Engineering and not-customarily disclosed to the public.

j Combustier Engineering has a rational basis for determining the types of

]

informdion customarily held in confidence by it and, in that connection, 1

j utilizes a system to determine when and whether to hold certain types of i

information in confidence. The details of the aforementioned system were j

provided to the Nuclear Regulatory Commission via letter DP-537 from -

1 l

F.M. Stern to Frank Schroeder dated December 2,1974.

This system was applied in determining that the subject documents herein are proprietary.

4.

The information is being transmitted to the Comission in confidence i

under the provisions of 10 CFR 2.790 with the understanding that it is to j

be received in confidence by the Commission.

i 1

j 5.

The information, to the oest of my knowledge and belief, is not available in public sources, and any disclosure to third parties has been made pursuant to regulatory provisions or proprietary agreements which provide for maintenance of the information in confidence.

i 6.

Public disclosure of the information is'likely to cause substantial l.

harm to the competitive position of Combustion Engineering because:

i l

a.

A similar product is manufactured and sold by major pressurized water reactors competitors of Combustion Engineering.

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b.

Development of this information by C-E required thousands of man-hours of effort and hundreds of thousands of dollars. To the best of my knowledge and belief a competitcr would have to undergo similar expense in generating equivalent information.

c.

In order to acquire such information, a competitor would l

also require considerable time and inconvenience related to developing

]

mathematical models and computer codes.

l d.

T ht. information required significant effort and expense to i

j obtain the licensing approvals necessary for application of the information.

Avoidance of this expense would decrease a competitor's cost in applying i

]

the information and marketing the product to which the information is I

applicable.

e.

The information consists of supporting data for analyses, 1

)

the application of which provides a competitive economic advantage. The availability of such information to competitors would enable them to mo 7y i

their product to better compete with Combustion Engineering, take marketing or other actions to improve their product's position or impair the position

)

of Combustion Engineering's product, and avoid developing similar data and analyses in support of their processes, methods or apparatus.

1 i

f.

In pricing Combustion Engineering's products and services, significant research, development, engineering, analytical, manufacturing, licensing, quality assurance and other costs and expenses must be included.

4 The ability of Combustion Engineering's competitors to utilize such informati' n o

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without similar expenditure of resources may enable them to sell at prices I

reflecting significantly lower costs.

I

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J

, g.

Use of the information by competitors in the internation 1 marketplace would increase their ability to market nuclear steam supply systems by reducing the costs associated with their technology development.

In addition, disclosure would have an adverse economic impact on Combustion Engineering's potential for obtaining or maintaining foreign licensees.

Further the deponent sayeth not.

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v, P. L. McGill Vice President, Commercial Sworn to before me this 9th day of October 1977 5 k~ /!-[si Y Notary Public

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ETHELYN H. C0trtTTS. NOTARY PUBUC State of Connecticut No. 33976 Com.Tasswn Expires Mar:n 31,1933 i

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' PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.

O RESPONSE TO NRC QUESTIONS ON CEN-101(B)-P CALVERT CLIFFS UNIT 2 CYCLE 2 RELOAD SUBMITTAL - AMENDMENT 2-P October 9,1978 l

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This document contains proprietary information and is not to I

be transmitted or reproduced without specific written approval from Combustion Engineering, Inc.

000001 Copy No.

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Nuclear Power Systems

.c Power Systems Group 7

Windsor, Connecticut i

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t LEGAL NOTICE

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THIS REPORT V!AS PREPARED AS AN ACCOUNT OF V!ORK SPONSORED BY COM3USTION ET.'GINEERING. INC. NEITHER COT.'.BUSTION ENGINEERING NOR ANY PERSON ACTITJG ON ITS DEHALF:

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'f.' A R R ANT Y O R R E PR ESE NT ATION. EXPRESS OR IMPLIED INCLUDING THE V!ARRA! DIES OF FIT

  • JESS FOR A PARTICULAR PURPOSE OR t.iE R CH ANT ACI LIT Y, V!!T H RESPZCT TO THE ACCURACY, COMPl.ETENESS. OR U",EFULNESS OF THE INFOP.MATION. CONTAINED IN THIS REPOTIT. On THAT T!!E USE OF ANY INFORMATIO's'. APPARATUS, f.*ETHOD.

OR PROCESS D:SCLCSED IN THIS REPORT f.;AY NOT INFRINGE PRIVATELY 07/NED. RIG HTS; OR D. ASSU.'.ES ANY LI ACILITIE'S ?!!TH RESPECT TO THE USE OF. OR FOR DAMACT.S RESULTING FRO:.*& THE USE OF. ANY INFOR?.iATION, APPARATUS, uErneD OR eRoCcSS oiSCtosEo iN Tms nEPOPT g

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n.-....~.n PROPRIETARY INFORMA DOMBUSTION ENGINEERI Rephrased NRC Questions 1.

What is the minimum DNBR which occurs during the CEA Withdrawal transient?

2.

What parametric studies have been performed to select the worst case CEA Withdrawal transient for the determination of the [y] bias term in the TM/LP trip system?

3.

Is de case presented in the license submittal the worst case as determined by tt ese parametrics?

Response

As stated in CENPD 199P, the CEA Withdrawal transient is one of the desian basis events analyzed to determine a bias factor used in establishing the TM/LP trip setpoints. This bias factor, along with conservative temperature, pressure and power readings, assures that the TM/LP trip will prevent the DNBR from dropping below the SAFDL limits (DNBR = 1.19 based on the CE-1 correlation),for a CEA Withdrawal event.

As noted in previous responses to NRC. questions, the CEA Withdrawal trancient is examined to determine that case which produces the largest differences between measured core inlet temperatures at the time a trip signal is actuated and the actual core inlet temperatures at the time of minimum DNBR. The parameters which are of primary importance in determining the rate of temperature and power increase are:

1) reactivity insertion rate due to rod motion and moderator temperature feedback effects, 2) gap thermal conductivity, 3) Resistance Temperature Detector (rid) response characteristics, and 4) initial axial powcr shape. To determine the worst case CEA Withdrawal transient, a parametric ana?ysis was performed over a range of each of these parameters;[except RTD time constant and axial shape] to establish the worst case parametric combination. The worst axial power shape (or more specifically, scram worth versus insertion) was determined to be the [most bottom peaked] axial power distribution. This puwer distribution maximizes the time required to terminate the decrease in DNBR following a trip. The RTD time constant was set at the maximum value (5 seconds) currently allowed by Tech Specs.

To establish the worst combination of reactivity insertion and gap. thermal conductivity, the parametric analyses displayed in Figure 1 was performed.

l Figure 1 shows that the largest bias to the TM/LP trip is produced for the case of [ low] gap thermal conductivity and [high] reactivity insertion rate.

- The parameters for this worst case are summarized in Table 1.

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PROPRIETARY INFORMATION COMBUSTiEN ENGINEERING, INC.

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' KEY INPUT PARAMETERS FOR CEA WITHDRAWAL TRANSIENT

-4 Reactivi'.y Insertion Rate 2x10 Ap/sec

+.5x10-4 AW F Moderator Temperature Coefficient 2U

~ Gap Thermal Conductivity

[300) BTU /Hr-Ft F

Resistance Temrerature Detector Time Constant 5 Seconds Axial Shape Index

[+.67]

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PROPRIETARY INFORMATION i

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PROPfiiETARY INFORMitT10N COMBUSTION ENGINEERING, INC.

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I RESPONSE TO NRC QUESTIONS ON CEN-101(B)-P CALVERT CLIFFS UNIT 2 CYCLE 2 RELOAD SUBMITTAL - AMENDMENT 2-NP October 9, 1978 Combustion Engineering _Inc, y

Nuclear Power Systems Power Systems Group Windsor, Connecticut i

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LEGAL NOTICE

~ THIS REPORT V!AS PREPARED AS AN ACCOUNT OF WORK SPONSO

!!EITHER CO!.iGUSTION ENGINEE F 4NG DY CO:.'TU3 TION ENGINEEit1NG. INC.

NOil ANY PERSON ACTING C ' ITS CEH

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f *.AKES ANY % arf;ANTY OR REPRESENTATION. EXTiiESS OR II.', PLIED 1:JCLUDING THE WAHR ANi!ES OF FITNESS FOR A PARTICUl.AR PURPOSE OR T.iE R CH ANT ADl LIT Y, V.'I T H RESPECT TO THE A CC U;i ACY, COT,1Pl.ETENESS, OR USEF ULNESS CF THE f *,' FOP.:.iATION.CONTAf t.'ED IN THIS REPOTIT. On THAT THE USE OF ANY INFOR!.tATION, APPARATUS, f/.ETHOO, OR FiiOCESS D;SCLCSED IN THIS REPORT f.iAY NOT liJFRINCE PRIVATELY OWNCD.RlGHTS; OR 1

B. ASSU?.',ES /JJY LI AntLITIES V.'ITH RESPECT TO THE USE OF, OR FOR D Af/. AGES RESUL'ilNG F RO: *. THE USE OF, ATJY INFOR?.iATION, APPAR ATUS, m

t.iETliOD OR h1'JCCSS DISCLO5ED IN THIS iiEPOfiT.

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Rephrased NRC Questions 1.

What is the minimum DNBR which occurs during the CEA Withdrawal transient?

i 2.

What parametric studies have been performed to select the worst case CEA

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Withdrawal transient for the determination of the [ ] bias term in the TM/LP trip system?

i 3.

Is the case presented in the license submittal the worst case as detcrmined by these parametrics?

i

Response

As stated in CENPD-199P, the CEA Withdrawal transient is one of the design basis events analyzed to determine a bias factor used in establishing the TM/LP trip setpoints. This bias factor, along with conservative temperature, pressure and power readings, assures that the TM/LP trip will prevent the DNBR from dropping below the SAFDL limits (DNBR = 1.~19 based on the CE-1 correlation) for a CEA i

Withdrawal event.

As noted in previous responses to NRC questions, the CEA Withdrawal transient is -

examined to determine that case which produces the largest differences between measured core inlet temperatures at the time a trip signal is actuated and the actual core inlet temperatures at the time of minimum DNBR.

The parameters which are of primary importance in determining the rate of temperature and power increase j

are:

1) reactivity insertion rate due to rod motion and moderator temperature

. feedback effects, :) gap thermal conductivity, 3) Resistance Temperature Detector l

(RTD) response characteristics, and 4) initial axial power shape. To determine the j

worst case CEA Uithdrawal transient, a parametric analysis was performed over a range of each of these parameters;[

] to l

establish the worst case parametric combination. The worst axial power shape {or j

nore specifically, scram worth versus insertion) was determined to be the [

l

] axial power distribution. This power distribution maximizes the time required to terminate the decrease in DNBR following a trip. The RTD time constant was set at the maximum value (5 seconds) currently allowed by Tech Specs.

To establish the worst combination of reactivity insertion and gap thermal conductivity, the parametric analyses displayed in Figure 1 was performed.

Figure 1 shows that the largest bias to the TM/LP trip is produced for the i'.

case of [

] gap thermal conductivity and [

] reactivity insertion rate,___

The parameters for this worst case are summarized in Table 1.

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KEY INPUT PARAMETEP,5 FOR CEA WITHDRAWAL TRANSIENT Reactivity Insertion Rate 2x10-4

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Ap/sec'

-4 U

Moderator Temperature Coefficient

+.5x10 ap/ F 2

Gap Thermal Conductivity

[

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Resistance Temperature Detector Time Constant 5 Seconds Axial Shape *ndex

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AFFIDAVIT PURSUANT i

TO 10 CFR 2.790 4

j Combustion Engineering, Inc.

)

State of Connecticut

)

County of Hartford

)

SS.:

2 1

I, P. L. McGill depose and say that I am the Vice Presideat, Commercial of Combustion Enginesring, Inc., duly authorized to make this affidavit, and have reviewed or caused to have reviewed the information which is l

identified as proprietary and referenced in the paragraph immediately below.

I am submitting this affidavit in conformance with the provisions of 10 CFR 2.790 of the Commission's regulations and in conjunction with the application of Baltimore Gas and Electric Company for withholding this information.

The information for which proprietary treatment is sought is contained in the following Jocument:

Mendment L-P to CEN101'B)-P Calvert Cliffs Unit 2 Cycle 2 Reload Submittal Update.

This document has been appropriately designated as proprietary.

I have personal knowledge of the criteria and procedures utilized by Combustion Engineering in designating information as a trade secret, privileged or as confidential commercial or financial information.

Pursuant to the provisions of paragraph (b) (4) of Section 2.790 of the Connission's reguStions, the following is furnished for consideration by the Commission in determining whether the information sought to be withheld from public disclosure, included in the above referenced document.

l should be withheld.

i I

. 1.

The information sought to be withheld from public disclosure are detailed results of fuel inspection programs and results of specific analysis, which is owned and has been held in confidence by Combustion Engineering.

2.

The information consists of test data or other similar data concerning a process, method or component, the application of which results in a substantial competitive advantage to Combustion Engineering.

3.

The information is of a type customarily held in confidence by Combustion Engineering and not customarily disclosed to the public.

Combustion Engineering has a rational basis for determining the types of information customarily held in confidence by it and, in. hat connection, utilizes a system to determine when and whether to hold certain types of information in confidence. The details of the aforementioned system were provided te the Nuclear Regulatory Commission via letter DP-537 from i

i F.M. Stern to Frank Schroeder dated December 2, 1974. This system was applied in determining that the subject documents herein are proprietary.

I 4.

The information is being transmitted to the Commission in confidence under the provisions of 10 CFR 2.790 with the understanding that it is to be received-in confidence by the Commission.

5.

The information, to the best of my knowledge and belief, is not available in public sources, and any disclosure to third parties has been made pursuant to regulatory provisions or roprietary agreements which provide for maintenance of the information in confidence.

6.

Public disclosure of the information is likely to cause substantial I

harm to the compatitive position of Combustion Engineering because:

l a.

A similar product is manufactured and sold by major pressurized I

water reactors competitors of Combustion Engineering.

h

b.

Development of this information by C-E required thousands of man-hours of effort and hundreds of thousands f dollars. To the best of my knowledge and belief a competitor would have to undergo similar expense in generating equivalent information.

c.

In order to acquire such information, a competitor would also require considerable time and inconvenience related to conducting an extensive fuel inspection p-] gram and subsequent analysis.

d.

The information required significant effort and expense to obtain the licensing approvals necessary for application of the information.

Avoidance of this expense would decrease a competitor's cost in applying the information and marketing the product to which the information is applicable.

e.

The information consists of detail'ed results of a fuel inspection program and analytical rtsults, the application of which provides a competitive economic advantage.

The availability of such information to competitors would enable them to modify their product to better compete with Combustion Engineering, take marketing or other actions to improve their product's position or impair the position of Combustion Engineering's product, and avoid developing similar data and analyses in support of their processes, methods or apparatus.

f.

In pricing Combustion Engineering's products and services, significant research, development, engineering, analytical, manufacturing, licensing, quality assurance and other costs and expenses must be included.

The ability of Combustion Engineering's competitors to utilize such information without similar expenditure of resources may enable them to sell at prices reflecting significantly lower costs.

, g.

Use of the information by competitors in the international marketplace would increase their ability to market nuclear steam supply systems by reducing the costs associated with their technology development.

In addition, disclosure would have an adverse economic impact on Combustion Engineering's potential for obtaining or maintaining foreign licensees.

Further the deponent sayeth not.

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i /,' f P. L. McGill Vice President, Commercial Sworn to before me this 12th day of October 1976

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flotary Public My Ccussic, Egires ilar. 31.1933

.

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