NRC-95-4459, Forwards Effects of Internal Containment Stratification & Mixing on AP600 Passive Containment Cooling Sys Design Basis Analysis Evaluation Models

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Forwards Effects of Internal Containment Stratification & Mixing on AP600 Passive Containment Cooling Sys Design Basis Analysis Evaluation Models
ML20083C110
Person / Time
Site: 05200003
Issue date: 05/08/1995
From: Liparulo N
WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20083C113 List:
References
NTD-NRC-95-4459, NUDOCS 9505150126
Download: ML20083C110 (2)


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Westinghouse Energy Systems Box 355 Pittsburgh Pennsylvania 15230 0355 i

' Electric Corporation i NTD-NRC-95-4459  ;

DCP/NRC0322  ;

Docket No.: STN-52-003 May 8,1995 I,

q Document Control Desk U.S. Nuclear Regulatory Commission '

Washington, D.C. 20555 t

A'ITENTION: MR. T. R. QUAY .

SUBJECT:

REPORT ON STRATIFICATION AND MIXING EFFECTS ON AP600 PASSIVE l CONTAINMENT COOLING SYSTEM DBA ,

Dear Mr. Quay:

The attached letter report provide an evaluation of the effects of containment internal stratification and  !

4 mixing on AP600 Passive Containment Cooling System pressure predictions for Design Basis Analyses. This transmittal support closure of open item 1631, and partially addresses open items 485, 487,975,982,1637, and 1645 in the AP600 Open Item Tracking System.

The Westinghouse Electric Corporation copyright notice is also attached. i Please contact Brian A. McIntyre on (412) 374-4334 if you have any questions concerning this transmittal.

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\. 9.w m Tric-Nd. Liparulo, Manager Nuclear Safety Regulatory And Licensing Activities i

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/nja l Attachment ec: W. Huffman, NRC J. Kudrick, NRC (IE)

E. Throm, NRC (1E)

G. D. McPherson, NRC (w/o Enclosures / Attachments)

R. Griffith, SNL (IE)

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P. Bochnert, ACRS (IE) _

11. A. McIntyre, Westinghouse (w/o Enclosures / Attachments) t I

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9505150126 950509 na PDR ADOCK 05200003 A PDR I

COPYRIGIIT NOTICE The reports transmitted herewith each bear a Westinghouse copyright notice. The NRC is permitted to make the number of copies cf 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 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.

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