ML19316B613

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Notification of 880414 Meeting W/B&W Owners Group Steam Generator Committee in Rockville,Md to Discuss Committee Accomplishments & Activities During 1987 & Plans for 1988 & Beyond.Agenda Also Encl
ML19316B613
Person / Time
Issue date: 04/05/1988
From: Siegel B
Office of Nuclear Reactor Regulation
To: Cheng C
Office of Nuclear Reactor Regulation
References
NUDOCS 8804120066
Download: ML19316B613 (25)
v • d • e


Text

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ENCLOSURE 2 April 5,1988 MEMORANDUM FOR:

C. Y. Cheng, Chief Materials Engineering Branch Division of Engineering and System Technology FROM:

Byron Siegel, Acting Coordinator B&W Owners Group Generic Activities Project Directorate - IV Division of Reactor Projects - III, IV, Y and Special Projects

SUBJECT:

FORTHCOMING MEETING WITH B&W OWNERS GROUP STEAM GENERATOR COMMITTEE DATE & TIME:

April 14,1988 10:00 a.m.

LOCATION:

14 B 13 One White Flint North 11555 Rockville Pike

(

Rockville, Maryland 20852 i

PURPOSE:

To discuss B&W Owners Group Steam Generator Comittee accomplishments and activitiea during 1987 and plans for 1988 and beyond (See attached agenda).

  • PARTICIPAKTS:

-NRC B&W Owners Group B. Siegel G. Capodanno, Chaiman J. Richardson A. Buford K. Wichman:

R. Baker C.Y. Cheng D. Tate E. Murphy G. Cowles H. Conrad H. Mahlman J. Muscara S. Sloserick C. Serpan -

R. Dudley ls/

Byron Siegel Acting Coordinator B&W Owners Group Group Generic Activities Project Directorate - IV Division of Reactor Projects - III, IV, V and Special Projects cc: See next page-

  • Meetings between NRC technical staff and applicants or licent.ees are open' for interested nenbers of the public, petitioners, intervenors, or other parties to attend as observers pursuant to "Open Meeting Statement of NRC Staff Policy,"

43 Federal Register 28058,6/28/78.

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B&W M ERS GROUP STEAMGEN!RATORC0WITTEE PRESENTATIONTONRC AGENDA INTRODUCTION G.R.CAP0DANN0

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II.

B&W0G OB[lAE0N & MCE0NS G.R.GGANN0 111.SEANGEhERATORCONMITTEEORGANllATION&

MCT0NS G.R.CAP0DANN0

V.

1987 STEAM GENERATOR COMMITTEE ACCORPLISHWENTIACTIIES A.BU:0RD V.

PLANSFOR1988ANDBEYOND A. NORD 9

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ENCLOSURE 3 t

B&W0WNERSGROUP STEAMGENERATORCOMMITTEE PRESENTATIONTONRC APRIl.14,1988 i

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B&W0WNERSGROUP STEAMGENERATORCOMMITTEE j

PRESENTATION10NRC AGENDA j

I.

INTRODUCTION G.R.CAP0DANN0 II.

B&W0G ORGANIZATION & FUNCTIONS G.R.CAP0DANN0 III.STEAMGENERATORCOMMITTEEORGANIZATION&

FUNCTIONS G.R.CAP0DANN0 IV.

1987 STEAM GENERATOR COMMITTEE ACCOMPLISHMENTIACTIVITIES A.BUFORD i

V.

PLANSFOR1988ANDBEYOND A.BUFORD

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j B&W0WNERSGROUP 0WNERS ARKANSASPOWERANDLIGHTC0.

DUKEPOWERCOMPANY FLORIDAPOWERCORP.

GENERALPUBLICUTILITIES SACRAMENT0MUNICIPALUTILITIESDISTRICT j

TOLED0EDIS0NCOMPANY TENNESSEEVALLEYAUTHORITY MEMBERSHIP ALL0WNERSAREMEMBERSOfEPRIANDTHEEPRISTEAMGENERATOR RELIABILITYPROJECT(SGRP).

INTERfACES

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INTERfACESWITHEPRIAREACCOMPLISHEDVIAJOINTMEETINGS.

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X B&W0WNERSGROUP CHARTER PURPOSE IDENTIFYPROBLEMSANDSOLUTIONSREBTEDTOOPERATIONOfB&W-DESIGNEDNSST ACHIEVEHIGHPLANTAVAILABILITY,IMPROVESAFETYANDREDUCECOSTS.

OBJECTIVES A.

IMPROVEPBNTSAFETYANDAVAIBBILITY.

i B.

IDENTIFYANDOVERSEETIMELYRESOLUTIONOfGENERICISSUESAffECTINGP PERFORMANCE,SAFETYORLICENSING.

C.

STRIVEFORIIMELYPURSUITOfJ0INTTASKSWITHDUERECOGNITIONOf INDIVIDUALNEEDSOfPARTICIPATINGUTILITIES.

D.

PROVIDEEFFECTIVEMETHODFORCOMMUNICATIONSWITHNRCANDIMPLEMENT COMMUNICATIONS.

E.

PROVIDEEFFECTIVEVEHICLEFORCOMMUNICATINGB&W0GINTERESTSTOINP0, EPRI,ANDOTHERINDUSTRYORGANIZATIONS.

F.

IMPROVECOMMUNICATIONSBETWEENMEMBERSONNON-GENERICISSUES.

G.

PROVIDENETHODOfEffECTIVELYANDEffICIENTLYMANAGINGCOSTAND SCHEDULESREBTIVETOTHERESOLUTIONOfGENERICISSUES.

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B&W0WNERSGROUP ORGANIZATION EXECUTIVECOMMITTEE STEERINGCOMMITTEE i

i TECHNICALCOMMITTEES I

ANALYSIS MATERIALS TRANSIENTASSESSMENT ATWS N0NDESTRUCTIVEEXAMINATION I&CWORKINGGROUP AVAILABILITY OPERATORSUPPORT VALVETASKFORCE y

COREPERFORMANCE STEAMGENERATOR LIFEEXTENSION TECWWICALSPECIFICATION 1

THEOWNERSGROUPADDRESSESISSUESVIAFOURPROGRAMS:

1. TRIP REDUCTION AND TRANSIEN H ESPONSE IMPROVEM

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2. AVAILABILITY IMPROVEMENT PROGRAM (AIP) 3.

ECONOMIC BENEfli PROGRAM (EBP)

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SAFETY, REGULATORY COMMITMENT AND MANAGEMENT (SRCM) 9167d 5

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EXECUTIVECOMMITTEERESPONSIBILITIES ESTABLISHESPOLICIES PROVIDESSTRATEGICGUIDANCE STEERINGCOMMITIEERESPONSIBILITIES

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RECEIVEANDREVIEWTHEPROGRAMSHORTANDLONGRANGEPBNS COMPILE A B&W0G SHORT AND LONG RANGE PBN ACTTODISPOSITIONRECOMMENDATIONSFORWARDEDBYCOMMITTEESAND PROGRAMS TECHNICALCOMMITTEERESPONSIBILITIES i

IDENTIFYPROJECTST0'ACHIEVEG0ALS PREPARELONGANDSHORTRANGEPBNS SUBMITPBNSTOPMIFORAPPROVAL f.0RWARDRECOMMENDATIONS10PROGRAMDIRECTORSFORREVIEWAND END0RSEMENT MONITORPROGRESSANDTECHNICALASPECTSOFPROGRAMS REVIEWFORAPPROVALTECHNICALREPORTSPRIORTOISSUE

l B&W OWNERS GROUP STEAM GENERATOR COMMITTEE CHARTER PURPOSE THE COMMITTEE WAS ESTABLISHED TO IDENTIFY PROBLEMS AND DEVELOP SOLUTIONS TO PROBLEMS i

RELATED TO THE OPERATIONAL INTEGRITY AND RELIABILITY OF THE B&W DESIGNED ONCE-THROUGH STEAM GENERATOR IN ORDER T0:

0 MAINTAIN SAFETY o ACHIEVE HIGH PLANT AVAILABILITY/CAPACITY 0 REDUCE OPERATING COSTS g

B&W 0WNERS GROUP STEAM GENERATOR COMMITTEE CHARTER CoNT'D STEAM GENERATOR COMMITTEE PROGRAM OBJECTIVES

=

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FOCUS IS STEAM GENERATOR INTEGRITY AND RELIABILITY i

o ASSURE STRONG INTERFACE WITH OTHER INDUSTRY ORGANIZATIONS 0

PREVENT PROLONGED PLANT SHUTDOWNS OR STEAM j

GENERATOR REPLACEMENT o

MINIMIZE FORCED OUTAGES CAUSED BY STEAM GENERATOR PROBLEMS o

AVOID POWER REDUCTIONS DUE TO STEAM GENERATOR 1

PROBLEMS o

MAXIMIZE STEAM GENERATOR OPERATING LIFE AND

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PROVIDE PROTECTION FROM CURRENTLY KNOWN CAUSES OF DEGRADATION o

IDENTIFY NEW PROBLEM AREAS AS THEY ARISE

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B&W OWNERS GROUP STEAM GENERATOR COMMITTEE MEMBERS i

G. CAPODANNO

- GPUN CHAIRMAN S. SLOSNERICK - TED VICE CHAIRMAN H. MAHLMAN

- TVA 1

R. WICHERT.

- SMUD R. EAKER

- DPC0 G. C0WLES

- FPC l

A. BUFORD

- AP&L 4

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Steam Generator (OTSG)

PRIMARY INLET n

PRIMARY SIDE (INSIDE TUBES) i I UPPER TUBESHEET (OTS)

AUXILIARY nnemmnmimummmm'm h

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N0ZZLES (MFW) sm O.

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{l00llll0lllll LOWER SECONDARY.

LOWER SECONDARY MANWAY HANDHOLE I

i LOWER TUBESHEET (LTS)

N PRIMARY OUTLET HEIGHT

= 73 FT.

DIAMETER = 12.7 FT.

WEIGHT

= 570 TSNS (EMPTY)

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OTSG Feedwater - Steam Production j

PRIMARY INLET

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PLATES (TYPICAL)

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OTSG Mabe Support Plates, broached openings for flow steam Generator wbe - s/8" oo between plate and tube Primary Water Feedwater/Steam 3

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i 1987 STEAM GENERATOR-COMMITTEE ACCOMPLISHMENTS/ACTIVITIES l

A.

TUBE INTEGRITY B.

SECONDARY SIDE FOULING C.

ADDITIONAL PROJECTS 4

PLANS FOR 1988 AND BEYOND A.

TUBE INTEGRITY 4

B.

SECONDARY SIDE FOULING C.

ADDITIONAL PROJECTS o

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1987ACCOMPLISWHENTSlACTIVITIES A.

TUBEINTEGRITY i

1.

TUBE PLUGGING CRITERIA PROGRAM A)

INTERFACEMEETINGWITHEPRIONSGRPTASKSRELATIVETO OTSGs B)

SURVEYEDTUBEDEFECTTYPESFOUNDINOTSGs C)

INITIATEDANALYSISINPUTSREVIEWFORTUBELOADS D)

HELDWORKSHOPONSTATUSANDPLAN1988ACTIVITIES 2.

PRELIMINARY EVALUATION Of LEAKER OUTAGES FOR INPUT INTO 1988PROGRAM 1

3.

INTERFACED WITH NDE COMMITTEE 10 DEFINElPRIORITIZE 1988 NDE COMMITTEEACTIVITIESTHATSUPPORTOTSGCOMMITTEE B.

SECONDARYSIDEF0ULING 1.

WATER SLAP ENHANCEMENT TO IMPROVE REMOVAL 0F BROACHED WOL BLOCKAGEBYUSEOfINCREASEDNITR0GENPRESSURE 2.

CHEMISTRY WORKSW0P FOR ENWANCED SLUDGE REMOVAL

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A)

SWORT TERM - EVALUATED MILD CHEMICAL SOAK TO REMOVE SLUDGEANDl0RENHANCEWATERSLAP(E.G.,B0RICACID, WYDRAZINE,HORPW0LINE)

B)

LONGTERM(POSSIBLEFUTUREPROGRAMS)TOENHANCESLUDGE REMOVALANDl0RPREVENTDEPOSITION(E.G.,POLYMERS, CHELANTS,ETC.)

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1987ACCOMPLISHMENTSlACTIVITIES 3.

PREVENTATIVE MEASURES WORKSHOP A)

MORPW0LINEADDITIONFORpHCONTROL B)

WIGHTEMPERATUREPOLISHERSYSTEMS C)

IMPROVEDSLUDGELANCINGTECHNIQUES D)

REROUTINGM0ISTURESEPARAT0R'DRAINS E)

ELECTROMAGNETICFILTERS f)

CONDENSATEPOLISHEROPERATION 4.

FLAKE SPALLING STUDY 5.

OCONEE CHEMICAL CLEANING PROGRAM REPORT C.

ADDITIONALPR0]ECTSlACTIVITES 1.

AVAILABILITY COMMITTEE INTERfACE MEETING 2.

EPRI C0ORDINATION MEETING 4

3.

OTSG LIFE EXTENSION PROGRAM PLAN

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PLANT-TO PLANT TRENDING REPORT (REV. 3) DATA COLLECTION 9167d 10

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PLANSFOR1988ANDBEYOND A.

TUBEINTEGRITY 1.

1988/1989SHORTRANGEPLAN A)

TUBEPLUGGINGCRITERIA INTEGRATERESULTSOf1987PROGRAMWITHEPRIWORKTO PROVIDEREVISEDTUBEANDSLEEVEPLUGGINGLIMITSFOR THEDAMAGEMECWANISMSIDENTIFIEDINOPERATINGOTSG.

B)

WORKWITHBW0GNDECOMMITTEEANDSGRPONINSPECTION GUIDELINES.

C)

CORRELATE NDE, CHEMISTRY AND TUBE PULL DATA TO PLANT LEAKERWISTORIESTOINCREASEUNDERSTANDINGOfLEAKERS.

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D)

FEASIBILITYSTUDYFORMETHODSOfUTSFLUSWING.

E)

ASSESSINDUSTRYLITERATUREONTUBEDAMAGEMECHANISMS ASAPPLICABLE10OTSGs.

B.

SECONDARYSIDEFOULING 1.

1988/1989SHORTRANGEPLANS A)

EVALUATIONOfADDITIONALENHANCEMENTSTOWATERSLAP.

B)

COMPLETETHEENGINEERINGEVALVATION'0FFLAKESAND SPALLING.

C)

EVALUATIONOfKWUCHEMICALCLEANINGPROCESSASAN ALTERNATIVETOEPRISG0GPROCESS.

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PLANSFOR1988ANDBEYOND 0)

COMPLETETHEHIGWTEMPERATUREPURIFICATIONSYSTEM EVALUATION.

E)

QUAL!fYON-LINEMORPH0LINEADDITIONANDIMPLEMENTAT OTSGSITE(S).

f)

SECONDARYSIDEDEPOSITIONMODEL.

G)

PLANTOCONTR0LlMINIMIZESECONDARYSIDEFOULING.

2.

LONGRANGEPLANS A)

CONTINUETOWORKONSECONDARYSIDEF0ULING,TUBE 1

INTEGRITY,LIFEEXTENSIONANDRELATEDPROJECTRESULTS, ANDIDENTIFYNEWPROJECTSASAPPROPRIATE.

B)

DEVELOPADDITIONALMETHODS10REDUCECORR0SIONPRODUCT GENERATIONANDTRANSPORT.

C.

ADDITIONALPROJECTS 1.

DEVELOP OTSG N0lllE DAMS 2.

OTSG LIFE EXTENSION PROGRAM 3.

COMPLETE OTSG PLANT-10-PLANT TRENDING REPORT 4.

C0ORDINATEWITHEPRIONVARIOUSPROJECTS 9167d 12

i APPENDIX A I

B&W OWNERS GROUP STEAM GENERATOR COMMITTEE 1988/89 ACTIVITIES 1

I.

TUBE INTEGRITY PROJECTS A.

Revision of Tube and Sleeve Plugging Criteria Objective - Develop revised tube and sleeve plugging j

criteria for OTSG tubes.

Scope - Review known tube defects and tube loads.

Develop revised tube and sleeve plugging criteria.

(This project will be conducted to take maximum advantage of similar EPRI i

programs.)

Expected Results - Revised tube and sleeve plugging limits for each damage mechanism type identified in operating i

OTSGs.

B.

Correlate NDE, Chemistry, and Tube Pull Data to Plant l

i Leaker Histories.

Objective - Correlate secondary system water chemistry, NDE, tube pull data with OTSG tube leaks to determine tubes most likely to become leakers and reasons why.

_ 2 i

Scope - Review available data and perform engineering

.evaluation to obtain correlations between operating and layup experience and tube leaks.

j Expected Results 1.

Guidelines to decrease incidence of OTSG tube leak outages.

2.

Recommendations with respect to preventive sleeving.

i C.

Methods for Upper Tubesheet Flushing Objective - Determine methods to flush OTSG upper tubesheet crevices during plant shutdown to remove chemical contaminants which contribute to tube corrosion.

Scope - Review procedures which have been used to flush recirculating steam generator (RSG) tubesheets and OTSG lower tubesheets.

Identify possible approaches for use on upper tubesheet.

Develop method which can be used for the upper tubesheet.

Expected Results - set of guidelines for flushing OTSG upper tubesheet crevices.

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D.

Tube Secondary Side IGA Evaluation Objective - Improve understanding of causes for secondary side l

IGA.

Scope - Collect/evaluate available eddy current data, tube sample laboratory examination results, plant operating history i

i data for possible correlations between individual plant l

histories and secondary side IGA.

Identify possible follow-on 1

i activities.

j Expected Results - Improved understanding of causes for

'i secondary side IGA and technical basis for plants to avoid conditions conducive to IGA.

i E.

Assess Industry Literature on Tube Damage Mechanisms as e

Applicable to OTSGs Objective - Improve understanding of known tube degradation mechanisms not seen in OTSGs.

Scope - Compile and evaluate existing and available industry data on tube degradation mechanisms. Compare the~causes of these mechanisms to the design and operational characteristics of the OTSG.

Determine susceptibility or immunity of OTSG to these damage mechanisms.

Expected Results'- Knowledge of the tube damage.types, causes, and plant or design conditions conducive to tube damage in the industry. Understand how these compare to OTSG conditions.

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SECONDARY SIDE FOULING PROJECTS A.

Water Slap (W/S) Enhancement Objective Improve ability of W/S to remove broached hole deposits.

Scope -

1)

Testing/analysis to qualify and optimize increased nitrogen pressure or number of cycles.

2)

Feastb111ty testing and qualification of mild abrasives to enhance N/S.

Expected Results - Remove enough deposit to enable the plant to reach and maintain full power operation for at least i fuel cycle.

j B.

Engineering Evaluation of Flakes and Spalling Objective - Determine characteristics of OTSG tube scale (Flakes), and identify the parameters that affect flake i

spalling from tube surfaces, i

Scope - Determine physical and chemical characteristics of flakes. Determine if spalling can be controlled to prevent step increases in OTSG pressure drop.

Develop special procedures to induce spalling in controlled n:anner to enhance deposit removal.

J Expected Results - Develop a more complete understanding of the physical and chemical properties of flakes, ways in which they form, conditions under which they come off tubes.

Formulate actions which might be implemented to lessen adverse effects of flakes and flake spalling on the pressure drop problem in OTSGs.

C.

Evaluation of KWU Chemical Cleaning Process Objective - Qualify an alternate to the EPRI/SGOG chemical cleaning process.

Scope - Perform independent technical evaluation and qualification of KWU high temperature chemical cleaning process for OTSGs.

ExpectedResulis-AqualifiedKWUprocessmayhaveadvantages in ease of application and cost.

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i D.

High Temperature Purification System (HTPS)

Objective - Determine ability of high temperature polishing~

system for pumped forward drains to improve feedwater j

chemistry by reducing the transport of contaminants to the OTSGs.

Scope - Monitor operation and chemical performance of upgrade prototype HPTS installation at Davis Besse for normal plant operation.

Expected Results - Verify performance of HPTS system.

E.

Qualify On-Line Morpholine Addition Objective - Qualify replacement of ammonia with morpholine as a secondary water chemistry pH control agent to reduce erosion/corrosion of secondary piping and subsequent transport of iron oxides to the OTSGs.

Scope - Under contract to EPRI, B&W will monitor industry experience with on-line use of morpho11ne, conduct morpholine-form condensate polishing test (bench-scale plant),

i and perform final generic on-line qualification of morpholine use at operating OTSG's plants.

Expected Results - Qualify on-line use in morpholine in OTSGs.

j F.

Secondary Side Measures to Minimize Corrosion Transport Objective - Identify secondary system water chemistry operations and procedures which can be used to minimize corrosion of the OTSG and other secondary system components.

Scope - Review current plant practices to identify areas of possible improvements.

Expected Result - Identify recommendations for improvements to secondary system water chemistry operations to minimize corrosion of components and admittance of corrosion products j

into the OTSGs.

G.

'Secondary Side Deposition Model Objective - Analytically model the corrosion product transport and deposition phenomenon on the secondary side of OTSGs.

Scope - Review and upgrade existing OTSG deposition model.

Determine effects of heat flux, time, corrosion product concentration, and selected water chemistry parameters upon deposition location and deposition remedies.

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Expected Results - Imp.ave-understanding of the OTSG fouling problem and develop possible remedies.

H.

Plan to Control/Minimize Secondary Sid'e Fouling i

Objective - Develop integrated plan to control/minimize OTSG secondary side fouling.

Scope - Collect all available information concerning causes, preventive measures, and remedies of OTSG fouling into a guideline document which utilities can use to address the fouling problem.

Expected Results - An integrated plan to control/minimize OTSG secondary side fouling which eliminates duplication of effort between organizations.

l 1.

Additional Qualification Test for Chemical Cleaning Objective - Provides for possibility that technical evaluation of KWU chemical cleaning process may require additional qualification testing.

Scope - Perform additional qualification testing of KWU chemical cleaning process for OTSGs.

Expected Results.- QUalification of KHU Chemical Cleaning process for OTSGs.

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,III.- ADDITIONAL PROJECTS A.

Nozzle Dams Objective - Make available to OTSG owners the generic nozzle dam cesign and installation technology developed by Duke Power Co..

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Scope - ( 63 leg nozzle dams have been successfully installed at Oconee

.its 1 and 2.

Duke Power Co. funded the develop-s ment and testing of the nozzle dam design and installation techniques for 0:onee.

This project will provide the base and generic design information to other OTSG owners so that nozzle dams can be installed at their plants.

Expected Results - Design and specification information and data to allow purchase and installation of nozzle dams at other OTSG plants.

B.

OTSG Life Extension Objective - Identify major tasks.required to preserve the life extension option of OTSGs.

Scope - Develop OTSG Life Extension Plan.

Expected Results.- Determination of possible life Ilmiting aspects of OTSG components.

C.

Plant-to-Piant Trending-Report Objective - Trend and evaluate OTSG and secondary system data for purpose of determining plant-to-plant similarities and differences that may affect tube integrity and secondary side fouling.

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-Scope - Establish OTSG data base consisting of eddy r.rent, s

profilometry, thermal-hydraulic, water chemistry, se endary system plant arrangement data, and plant performantt data.

Perform plant-to-plant comparisons.

Exp;.ited Results - Determine plant-to-plant similarities and dift'erences that.may affect tube integrity and secondary side fouling.

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