ML051610116

Refined ACM Benchmarking Results

ML051610116
Person / Time
Site:	Quad Cities
Issue date:	06/03/2005
From:	Roddey T Exelon Corp, Exelon Generation Co
To:	Dick G Office of Nuclear Reactor Regulation
References
Download: ML051610116 (9)

Text

.George Dick - Refined ACM BenchmarKing Results Page 1 From: <Thomas.Roddey@exeloncorp.com>

To: <gfd~nrc.gov>

Date: 6/3/05 3:37PM

Subject:

Refined ACM Benchmarking Results George, As discussed during the update teleconference Wednesday, CDI re-evaluated the QC2 data collected at 930 MWe after refining the parameters used in the acoustic circuit model. The attached file contains results of this re-evaluation.

Thanks, Thomas G. Roddey Exelon Generation Company Licensing and Regulatory Affairs Office: (630) 657-2811 Cell: (630) 399-3982 Fax: (630) 657-4327 Pager: (630) 683-0530

<<930 MWe ACM Benchmark with Refined Steam Line.ppt>>

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Subject:

Refined ACM Benchmarking Results Creation Date: 6/3/05 3:36PM From: <Thomas.Roddey@exeloncorp.com>

Created By: Thomas.Roddev@exeloncorM.com Recipients nrc.gov owf4_po.OWFNDO GFD (George Dick)

Post Office Route owf4_po.0WFNDO nrc.gov Files Size Date & Time MESSAGE 1420 06/03/05 03:36PM 930 MWe ACM Benchmark with Refined Steam Line.ppt 251904 Mime.822 348161 Options Expiration Date: None Priority: Standard Reply Requested: No Return Notification: None Concealed

Subject:

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QC-2 930 MWe ACM Benchmark with Refined Steam Line Damping Results from the acoustic circuit model refinement:

- MS line damping reduced 20%

Senlsor Rrv[S Data (psid) IZNh S B3lind (psid) _S RN.IS rNvod (psid)

1) 1%

0.6264 0. 6 21 8 0. 6 823 P 12 0.6S44 0.6209 0.659 I 11P0 0.493.3 0.5 474 0.604S 0.8776 0.7 O.8044 P24 0. 7N 0.23'38 O.2 5 I13 1P261 0.1010 0.042.% 0.044 1

QC-2 930 MWe ACM Benchmark with Refined Steam Line Damping 930 MWe: P3 Comparison 0.1 0.0()I N

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QC-2 930 MWe ACM Benchmark with Refined Steam Line Damping 930 MWe: P1 2 Comparison

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QC-2 930 MWe ACM Benchmark with Refined Steam Line Damping 930 MWe: P2 1 Comparison 1

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QC-2 930 MWe ACM Benchmark with Refined Steam Line Damping 930 MWe: P24 Comparison 0.1 N

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QC-2 930 MWe ACM Benchmark with Refined Steam Line Damping 930 MWe: P26 Comparison 0.01 0.001

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