ML14070A146

WCAP-17639-NP, Revision 3, Instrumentation Description for the Peach Bottom Unit 2 Replacement Steam Dryer.

ML14070A146
Person / Time
Site:	Peach Bottom
Issue date:	02/28/2014
From:	Kahsar K Westinghouse
To:	Office of Nuclear Reactor Regulation
References
WCAP-17639-NP, Rev 3
Download: ML14070A146 (15)

Text

Attachment 11Peach Bottom Atomic Power Station Units 2 and 3NRC Docket Nos. 50-277 and 50-278WCAP-17639, Rev 3. Instrumentation Description for the Peach Bottom Unit 2Replacement Steam Dryer Westinghouse Non-Proprietary Class 3WCAP-17639-NP FebrRevision 3Enclosure B.7Instrumentation Description for the Peach Bottom Unit 2Replacement Steam Dryer) Westinghouse uary 2014 WESTINGHOUSE NON-PROPRIETARY CLASS 3WCAP-17639-NP Revision 3Instrumentation Description forthe Peach Bottom Unit 2Replacement Steam DryerAuthorKristen Kahsar*Reviewed byDavid A. Suddaby*February 2014Approved:

David R. Forsyth*,

ManagerBWR Plant & Stress Analysis*Electronically approved records are authenticated in the electronic document management system.Westinghouse Electric Company LLC1000 Westinghouse DriveCranberry

Township, PA 16066, USA© 2014 Westinghouse Electric Company LLCAll Rights Reserved WESTINGHOUSE NON-PROPRIETARY CLASS 3iiRECORD OF REVISIONS Revision Description Completed 0 Original issue 08/17/2012 1 Revised in accordance with customer audit. Due to the extent of revisions, change bars 8/27/2012 are not used.2 Revised in accordance with customer audit. Due to the extent of revisions, change bars 9/25/2012 are not used.3 Revised to incorporate details on new instruments and additional pressure transducer See EDMSlocations.

WCAP- 1 7639-NPRevision 3February 2014 WESTINGHOUSE NON-PROPRIETARY CLASS 3 iiiTABLE OF CONTENTSR E C O R D O F RE V ISIO N S ..........................................................................................................................

iiL IST O F TA B L E S .......................................................................................................................................

ivL IST O F F IG U R E S ......................................................................................................................................

VL IST O F A C R O N Y M S ................................................................................................................................

vi1 IN T R O D U C T IO N ........................................................................................................................

1-12 INSTRUMENTATION OVERVIEW

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2-13 DATA ACQUISITION AND REDUCTION SYSTEM ................................................................

3-13.1 INSTRUMENT SPECIFICATIONS

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3-13.2 INSTRUMENT POSITIONS

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3-13.3 ENSURING ACQUISITION OF QUALITY DATA .......................................................

3-33.4 ONLINE DATA EVALUATION SYSTEM .....................................................................

3-33.5 DETERMINING FREQUENCY, MODAL CONTENT, AND MAXIMUM VALUES. 3-43.6 BIAS ERRORS AND RANDOM UNCERTAINTIES

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3-44 REFERENCES

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4-1WCAP- 17639-NPRevision 3February 2014 WESTINGHOUSE NON-PROPRIETARY CLASS 3 ivLIST OF TABLEST ab le 3-1 ]a,c .................................................................................

3-1WCAP- 17639-NPRevision 3February 2014 WESTINGHOUSE NON-PROPRIETARY CLASS 3 vLIST OF FIGURESF igure I-1 [ ]a,c ...............................................................

1-1WCAP- 17639-NPRevision 3February 2014 WESTINGHOUSE NON-PROPRIETARY CLASS 3viWESTINGHOUSE NON-PROPRIETARY CLASS 3 viLIST OF ACRONYMSAcronymDASNRCOEMRAIDefinition data acquisition systemU.S. Nuclear Regulatory Commission original equipment manufacturer request for additional information Trademark Note:INCONEL is a registered trademark of the Special Metals Corporation group of companies.

WCAP- 1 7639-NPRevision 3February 2014 WESTINGHOUSE NON-PROPRIETARY CLASS 31-11 INTRODUCTION Exelon is replacing the original equipment manufacturer (OEM) steam dryers at its Peach Bottom site.The Peach Bottom site has two reactors numbered Unit 2 and Unit 3 that will have their steam dryersreplaced with Westinghouse-designed steam dryers.This document describes the instrumentation to be installed on the Peach Bottom Unit 2 replacement steam dryer (shown in Figure 1-1). This dryer will be the first of the two installed.

The Peach Bottom Unit2 steam dryer will be considered a "Prototype" design consistent with the U.S. Nuclear Regulatory Commision (NRC) document Regulatory Guide 1.20, "Comprehensive Vibration Assessment Program forReactor Internals During Preoperational and Initial Startup Testing" (Reference 1).]a,ca,cFigure 1-1 [Ia,CWCAP-17639-NP Revision 3February 2014 WESTINGHOUSE NON-PROPRIETARY CLASS 3 2-12 INSTRUMENTATION OVERVIEWIWCAP- 17639-NPRevision 3February 2014 WESTINGHOUSE NON-PROPRIETARY CLASS 33-13 DATA ACQUISITION AND REDUCTION SYSTEMSections 3.1 through 3.6 address subitems (a) through (f) of Section 2.2, item 1, in Regulatory Guide 1.20(Reference 1). The material is limited to description of direct steam dryer instrumentation.

3.1 INSTRUMENT SPECIFICATIONS Consistent with the guidance contained in RG 1.20 (Reference 1), this section describes theaccelerometer, pressure transducer, and strain gauge being used to instrument the steam dryer. Table 3-1summarizes the instruments.

Table 3-1 [ ]a,cI]a.b,c[]ab,.c3.2 INSTRUMENT POSITIONS Regulatory Guide 1.20 requests details on the "transducer positions, which should be sufficient to monitorsignificant

lateral, vertical, and torsional structural motions of major reactor internals components in shell,beam, and rigid body modes of vibration, as well as significant hydraulic responses and those parameters that can be used to confirm the input forcing function" (Reference 1). This section describes the criteriaWCAP-17639-NP Revision 3February 2014 WESTINGHOUSE NON-PROPRIETARY CLASS 3 3-2used to identify locations for the accelerometers, pressure transducers, and strain gauges installed on thesteam dryer.a,cWCAP- 17639-NP February 2014Revision 3

WESTINGHOUSE NON-PROPRIETARY CLASS 33-3]a~c3.3 ENSURING ACQUISITION OF QUALITY DATARegulatory Guide 1.20 requests details on the "precautions being taken to ensure acquisition of qualitydata (e.g., optimization of signal-to-noise ratio, relationship of recording times to data reduction requirements, choice of instrumentation system)"

(Reference 1).]a.c3.4 ONLINE DATA EVALUATION SYSTEMRegulatory Guide 1.20 requests details on the "online data evaluation system to provide immediate verification of general data quality" (Reference 1).WCAP- 17639-NPRevision 3February 2014 WESTINGHOUSE NON-PROPRIETARY CLASS 33-4ia,b,c3.5 DETERMINING FREQUENCY, MODAL CONTENT, AND MAXIMUM VALUESRegulatory Guide 1.20 requests details on the "procedures for determining frequency, modal content, andmaximum values of response" (Reference 1).[]a~c3.6 BIAS ERRORS AND RANDOM UNCERTAINTIES Regulatory Guide 1.20 requests details on "all bias errors (such as model underprediction) and randomuncertainties (such as instrumentation error) associated with the instrumentation and data acquisition systems" (Reference 1).[]a,WCAP- 1 7639-NPRevision 3February 2014 WESTINGHOUSE NON-PROPRIETARY CLASS 34-14 REFERENCES

1. U.S. Nuclear Regulatory Commission, Regulatory Guide 1.20, Revision 3, "Comprehensive Vibration Assessment Program for Reactor Internals During Preoperational and Initial StartupTesting,"

March 2007.2. Deleted.3. WCAP-17609-P, Revision 2, "Peach Bottom Units 2 and 3 Replacement Steam Dryer Structural Evaluation for High-Cycle Acoustic Loads," February 2014. (Westinghouse Proprietary Class 2)WCAP- 17639-NPRevision 3February 2014