ML20045H455

Requests That Proprietary Presentation Matls from 930714 Meeting on AP600 CR Habitability Be Withheld (Ref 10CFR2.790)

ML20045H455
Person / Time
Site:	05200003
Issue date:	07/14/1993
From:	Liparulo N WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:	Borchardt R NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML19303F724	List: ML20045H452 ML20045H455
References
AW-93-489, NUDOCS 9307200232
Download: ML20045H455 (41)

Text

. _ _ _ _ _

Westinghouse Energy Systems Box 355 Electric Corporation Pit tstugh Pennsylvania 15230 0355 AW-93-489 July 14,1993 Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555 ATTENTION: MR. R. W. BORCHARDT APPLICATION FOR WITHHOLDING PROPRIETARY INFORMATION FROM PUBLIC DISCLOSURE

SUBJECT:

PRESENTATION MATERIALS FROM THE JULY 14,1993 MEETING ON AP600 CONTROL ROOM IIABITABILITY

Dear Mr. Borchardt:

The application for withholding is submitted by Westinghouse Electric Corporation (" Westinghouse")

pursuant to the provisions of paragraph (b)(1) of Section 2.790 of the Commission's regulations. It contains commercial strategic information proprietary to Westinghouse and customarily held in confidence.

The proprietary material for which withholding is being requested is identified in the proprietary version of the subject report. In conformance with 10CFR Section 2.790, Affidavit AW-93-489 accompanies this application for withholding setting forth the basis on which the identified proprietary information may be withheld from public disclosure.

Accordingly, it is respectfully requested that the subject information which is proprietary to Westinghouse be withheld from public disclosure in accordance with 10CFR Section 2.790 of the Commission's regulations.

Correspondence with respect to this application for withholding or the accompanying affidavit should reference AW-93-489 and should be addressed to the undersigned.

Very truly yours,

/

N. J. Liparulo, Manager f% u)g Nuclear Safety And Regulatory Activities

/nja ec: Kevin Bohrer NRC 12H5 1088A 7200232 930714 @4 ADOCK 05200003 -

PDR y

COPYRIGIIT 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 2.790 regarding restrictions on public disclosure to the extent such information has been identified as proprietary by Westinghouse, copyright protection not withstanding. 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, D.C. and in local public document rooms as may be required by NRC regulations if the number of copics submitted is insufficient for this purpose. The NRC is not authorized to make copies for the personal use of members of the public who make use of the NRC pt.blic document rooms. Copics made by the NRC must include the copyright notice in all instances and the proprietary notice if the original was identified as proprietary.

0330A L

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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 10CFR 2.790 of the commission's regulation 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 on the brackets remain, the information that was contained within brackets and where tne 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 Section (4)(ii)(a) through (4)(ii)(f) of the affidavit accompanying this transmittal pursuant to 10CFR2.790(b)(1). >

0330A

AW-93-489 AFFIDAVIT COMMONWEALTH OF PENNSYLVANIA:

ss COUNTY OF ALLEGHENY:

Before me, the undersigned authority, personally appeared Brian A. McIntyre, 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 knowledge, information, and belief:

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Brian A. McIntyre, Manager Advanced Plant Safety and Licensing Sworn to and subscribed before me this /d day of Yx M - 1993

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Notary Public

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AW-93-489 (1) I am Manager, Advanced Plant Safety and Licensing, in the Nuclear and Advanced Technology 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 Commission's regulations and in conjunction with the Westinghouse application for withholding accompanying this Affidavit.

(3) I have personal knowledge of the criteria and procedures utilized by the Westinghouse Energy Sysiems Business Unit 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 2.790 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.

(i) The information sought to be withheld from public disclosure is owned and has been held in confidence by Westinghouse. I (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 1 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:

i i

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AW-93-489 ,

(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 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, i (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.

(c) It reveals aspects of past, present, os 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 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.

K$9A -

. - . - . ~ -. --. .

AW-93-489 (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 depriving Westinghouse of a competitive advantage.

(c) 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.

-i (f) The Westinghouse capacity to invest corporate assets in research and i

development depends upon the success in obtaining and maintaining a 1 I

competitive advantage.

1 (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. -

(iv) ne information sought to be protected is not available in public sources or available i i

information has not been previously employed in the same original manner or method -

to the best of our knowledge and belief. l I

(v) Enclosed is Letter ET-NRC-93-3920, July 14,1993, being transmitted by Westinghouse Electric Corporation (,),V_,) letter and Application for Withholding Proprietary Information from Public Disclosure, N. J. Liparuto (E, to Mr. R. W. Borchardt, Office of NRR. The proprietary information as submitted for use by_ Westinghouse Electric Corporation is in response to questions concerning the  !

AP600 plant and the associated design certification application and is expected to be applicable in other licensee submittals in response to certain NRC requirements for -

justification of licensing advanced nuclear power plant designs.

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I AW-93-489 This information is part of that which will enable Westinghouse to:

(a) Demonstrate the design and safety of the AP600 Passive Safety Systems.

(b) Establish applicable verification testing methods.

(c) Design Advanced Nuclear Power Plants that meet NRC requirements.

(d) Establish technical and licensing approaches for the AP600 that will ultimately result in a certified design.

(c) Assist customers in obtaining NRC approval for future plants.

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 advanced plant licenses.

(b) Westinghouse can sell support and defense of the technology to its customers in the licensing process.

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 advanced nuclear power designs 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, 1059A c_ ~ ~ . - . -

AW-93-489 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 for developing analytical methods and receiving NRC approval for those methods.

Further the deponent sayeth not.

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1069A

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NON-PROPRIETARY VERSION PRESENTATION TO-UNITED STATES .

NUCLEAR REGULATORY COMMISSION t i

Westinghouse Rockville Licensing Office'

. July.14,- 1993 -

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- Modes of Operation Mike O'Connor

- Main Control Room Doses Jim Grover I Main Control Room Emergency Habitability System

- System Description Dan McDermott

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- Testing Dan McDermott' t

-- Main Control Room Doses Jim Grover

- Requests for Additional Information

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MODES OF OPERATION

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- Smoke purge

- Smoke / toxic chemicals

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- Maintain MCR at:

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- Capable of maintaining 73 to 78 F

- 25% and 60% relative humidity range Slightly positive pressure

- Maintain TSC at:

- L73 F to 78 F ambient temperature

- 25% and 60% relative humidity range Slightly positive pressure

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MCR/TSC HVAC (VBS)

- Design Isases (cont'd)

- Defense-in-Depth-

- Maintain passive cooling heat sinks initial temperature 480 F

- MCR/TSC d 1/8 in. Wg pressure when high radiation present

- Auto transfer to standby diesel on LOOP Safety-related l

- Provide MCR envelope isolation dampers and start '

emergency habitability system (VES) on high-high radiation

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-. Filter makeup air to MCR/TSC during high radiation condition

- MCR/TSC recirc mode when smoke detected from external fire-(toxic chemicals are site specific)

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- Defense-in-Depth (cont'd)

- Provide smoke removal capability for internal fire Safetv-related

- Initiate MCR Emergency Habitability System on high-high radiation, if required

____m._ ._ __ __ __ _ _ _ . _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _

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- Tornado protection damper in the outside air intake duct Redundant smoke detectors in outside air intake duct ,

- Operable during or after DBE if ac power is available

- Supplemental air filtration on high radiation, containment isolation or manual actuation

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II Thyroid Dose 9.6 rem Gamma-Body Dose (from immersion in 0.16 rem  !

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Beta-Skin Dose (from immersion in 8.8 rem the noble gas cloud inside Control Room) j

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AssumDtions Used to Determine CR Doses e LOCA Source Term as described in SSAR (EPRI Defined Source Term) e Control Room Occupancy of: 100% for O to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 60% for 24 to 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br /> 40% for 96 to 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> e Breathing Rate: 3.47 x 10 4 m3/sec e Atmospheric dispersion factors (X/O values) are as stated in the SSAR:

0 - 2 hr 2.2 x 10-3 sec/m 3 2 - 8' 1.5 x 10-3 8 - 24 1.3 x 10-3 24 - 96 8.4 x 10 4 96 - 720 4.8 x 10 4 e Dose Conversion Factors are from ICRP Publication 30 and EPA Federal Guidance Report No.11 e Control Room volume: 42,260 cubic feet w

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Annumntions Used to Determine CR Doses (cont.) 1 e Technical, Support Center volume: 69,850 cubic feet e Unfiltered air inleakage of 40 cfm .

o Pressurization air flow df 960 cfm i

e Ritration of pressurization air flow: Particulate 99 %

Organic 90 %

Elemental 90 %

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• Recirculation air flow of 14,000 cfm with.3000 cfm passing through the supplemental air filtration unit-(all oflthe flow passes through the main i air handling umt) e Filtration of recirculation air flow:

L Main Air Supplemental Air

- Handling Unit Filtration Unit- .

Particulate 80%' - 99%

Organic N/A; 90 %

- Elemental 'N/A 90% '

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L MCR EMERGENCY HABITABILITY SYSTEM (VES) .

SAFETY-RELATED FUNCTIONS / DESIGN BASIS

- Provide MCR with an adequate supply of breathable air Maintain breathable air standards with CO2 levels below

one percent by volume (OSHA,29 CFR 1910)-

- Pressurize MCR to' limit ingress of radioactive contaminants Maintain MCR pressure 1/8 inch water gage relative to adjoining areas

- Limit MCR temperature. rise

- Limit temperature excursion following DBE, with a loss of all ac power, to 15 F for 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> 4

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MCR EMERGENCY HABITABILITY SYSTEM (VES) .

DESIGN CRlTERIA 4

- GDC 19:

Provide-a control room to operate the reactor plant safely.

under normal conditions and maintain it safely under accident conditions. Adequate radiation protection to limit operator doses to less than 5 rem whole body or equivalent.

- Safety-related design

- ASME Section 111, Safety Class 3 1

- Seismic Category 1 Class 1E Meets. single failure criterion

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VES SCHEMATIC - ACTUATION - OPERATION ,

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WESTINGl10USE PROPRIETARY CLASS 2 VES: SYSTEM ~ PARAMETERS / PERFORMANCE VENTILATION ,

- System design basis

' Air flow rate 20 cfm Max. CO 2 concentration 1.0 %

(OSHA, 29'CFR 1910) u

- ' Evaluation basis Initial CO 2 concentration 0.25 %

Personnel 5 Duration 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />

.CO 2 production / person 0.0155 cfm

- Resuits CO 2 concentration <1.00%

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VES SYSTEM' PARAMETERS / PERFORMANCE i" PRESSURIZATION

- System design basis Air tank volume 664 ft (2 sets)

Air tank pressure 2500 psia

- Evaluation basis MCR positive pressure 1/8 inch water

- MCR maximum leakage rate 20 cfm @ 1/8 inch water'

- Results ~

Margin op ]a>A

' MCR envelope leakage rate calculations: Methodology and assumptions consistent with " Conventional Building for Reactor Containment."

__..______________.____..__..______.__._______.______.___m______m_._____m_ _ _ _ _ _ _ _ _ _ _ . __

yno;;j VES SYSTEM PARAMETERS / PERFORMANCE 4J l

l COOLING  ;

- System design basis

- MCR max. temperature rise 15 F

- Evaluation basis Heat sources (variation with time) Graph

- Heat sink initial temperature Tech Spec

- Heat sink configurations Finned ceiling, flat walls

- Margin Temperature rise Graph ,

_________._._.___________________.____.___.______________________________._______________.________.___________________m_ - - -

N WESTINGIIOUSE PROPRIETARY CLASS 2

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MCR EMERGnNCY HABITABILITY SYSTEM (VES)

MODES OF OPERATION ,

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- Air supply / heat sinks maintained per Tech Specs

- Abnormal Smoke'/ Fire

- - Normal HVAC (VBS) placed in recirc. mode.

- Passive system (VES) maintaineci in standby, available for. manual actuation Toxic releases Normal HVAC (VBS) placed in r.ecirc. mode

- Passive system-(VES) maintained in standby, available for manual actuation

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MCR. EMERGENCY HABITABILITY SYSTEM (VES) ,

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! - Compressed-air storage tank refill connections

- Located in truck / rail bay area

- Permanently installed Safety-related Seismic

- Cooling capability

- Sealed penetrations provided through MCR envelope (provides for cooled water supply and return) ,

- Permanently installed

- Safety-related-1 Seismic l

- -Portable unit cooler to be provided inside MCR

- Portable air-cooled chiller to be provided outside MCR envelope:

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a y j CR Doses with Passive CR Habitability System Thyroid Dose 23.3 rem Gamma-Body Dose (from immersion in 0.0023 rem the noble gas cloud inside Control Room)

Beta-Skin Dose (from immersion in 0.17 rem the noble gas cloud inside Control Room)

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Assumptions Used to Determine CR Doses e LOCA Sogrce Term as described in SSAR (EPRI Defined Source Term) .

e Control Room Occupancy of: 100% for O to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 60% for 24 to 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br /> i 40% for 96 to 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> L e Breathing Rate: 3.47 x 104 m3/sec e Atmospheric dispersion factors (X/O values) are as stated in the SSAR

• Dose Conversion Factors are from ICRP Publication 30 and EPA Federal i

Guidance Report No.11 l

-e . Control Room volume: 42,260 cubic feet e Unfiltered air inleakage: 0.3 cfm e Control Room pressurization air flow (from air bottles): 20 cfm

.e No recirculation air cleanup n.,m

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NRC REQUESTS FOR ADDITIONAL INFORMATION RAI 410.96: Justify the nonsafety-related designation of the

!  ; VBS filtration function of the CRAVS RAI 410.97: Demonstrate how the VBS complies with GDC 4

" Environmental and Missile Design Basis" L

RAI 450.1

Provide methodology for pressurization capability of VES. Provide methodology for assessing CO2 1 concentration. Provide rationale for habitability.

Provide justification that safety-related and defense-in-depth equipment will-not be degraded l during DBA's. Provide rationale for not providing .

an ESF filtration system in accordance with RG .

1.52.

i RAI 450.2: Justify the unfiltered inleakage assumption for the MCR envelope and explain MCR isolation actions.

L _ _ _ .

..n .g NRC REQUESTS FOR ADDITIONAL INFORMATION L

RAI 410.96: Justify interfaces for future app 9 cants to: -

ii - ensure VES complies with ?J3Os 4,5, and 19 ,

- verify procedures are consistent with licensing basis documentation

- verify technical specifications are consistent with licensing basis documentation t

1 1

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