ML19319B070
| ML19319B070 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 08/08/1972 |
| From: | Peltier I US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Deyoung R US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 8001070603 | |
| Download: ML19319B070 (9) | |
Text
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Docket No. 50-269 R. C. - DeYoung, Assistant Director for Pressurized Water Reactorg,igkitansst4hY THRU:-
A. Schwencer, Chief, Pressurized Water Reactors Branch br4 pen,wencer MEETING WITH DUKE POWER COMPANY AND BABCOCK & WILCOX COMPANY - AUGUST 7, 1972 OCONES VIBRATION MONITORING FOR UNIT 1' HOT FUNCTIONAL TESTS Eti osed is a summary of the meeting held on August 7, 1972 with Duke Power Company and the Babcock & Wilcox Company. _An attendance list is also enclosed.
Original Signed by Irving L Peltier,,
I. A. Peltier, Project Manager Pressurized Water Reactors Branch No. 4 Directorate of Licensing Enclosures 1.
Meeting Summary 2.
Attendance List ec w/encis:
DISTRIBUTION R. S. Boyd Docket D._Skovholt RP Reading D. Knuth PWR-4 Reading R. Maccary R. Tedesco H. Denton PWR Branch Chiefs R. W. Klecker M. Rosen 20 (3) 1.~A. Peltier M. Service (2)
D. Lange S.-N. Hou R. M. Bernero D. E.'Whitosell 4
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. : MEETING WITH DUKE POWER? COMPANY AND BABCOCK & WILCOX COMPANY - 8/7/72 y
_ 7 0CONEE VIBRATION MONITORING FOR' UNIT 1 HOT FUNCTIONAL TESTS
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' Summary :
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?BhWima$c.aforma1Eprisentation,onthevibrationinstrumentationwhichit.
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.fproposes?for70concelUnitil' Hut Functional' Test.
It is B&W's contention
.;that;the proposed' scheme: meets and exceeds. tite Safety Guide 20 requirements.
J The fenclosed drawings : illustrate chef type and location of instru: cents and s
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- 1their?c'ableTrouting'and+the presentation discussion outlined the'b' asis for 2
,; selection takinglinto, consideration past failura-experience, redundancy and s
'!; analytical modelling?
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,There wa'sia brief discussion of-the' status-of topical reports, and..the t
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irepair. ' schedule. L The firs't topical report dealing with the investigation 2
~ m u.of damage anducause will be delayed fro = nid-August to the end of August
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jbecause of the' manpower. effort B&W put on-the vibration monitoring system.-
tThe! revised designicopical:and-the. vibration monitoring topical with a
( - predict. ion 3nalysis 'are scheduled for mid-September.
The repair worklisLgoing well;and on' schedule except in one area.
Some w.
' 214',000? tubes have boca welded in steam generator A andLthe work may be finished;initwodeeks. B&W has been able to weld 600 tubes.a day with itwoisix-hour shifts.
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' Unit 2'th'ermalishield modification is complete'and Unit 1 thermal. shield 3
l modification'ia underway.= Unit 2_instrdment nozzles have been welded in land Unicil nozzles are being welded now.. A'.sl:y;ht change to the. design
~ Tofotihe nozElesifor Unit 1 wasurequired because af ter the old nozzles had beeni ji igroundzout"and cleaned up.less material was left than required by the
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LTitef onlyJarea that:could cause as much.as. a two week dclay in th'c repair
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ischedule:islthe fact that. some weld shrinkage of the~ flow baffle has :
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1Except forfsomerfinal configuration: tests, the vessel model flow tests Y
ihave been soupleced. 'Apparently;the revised design has had an impact on the
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cflow ch' racteristicsiin asimuhh as pressure drops and ttrbulence have been
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d remove the'Iflow-ivanes. iThe1 final t.ests will be run on all' pump combinations.
m o 4 Thefflow testitopical~ reports.iwill be nodified for a-new reference' design.-
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B&W pointed'out that Arkansas'modificat' ions are.on the same schedule as
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L0conee;and these plants are'the only ones being modified in the field, p
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p' JB&W stated that fifteen people have been working' full time on the
- instrumentation scheme. The effort has been made to conform with
' Safety Guide'20:and a prediction' analysis.
Strain gages and accelerometers have been planned for the lower grid components, bottom vessel head, upper L.
barrel, shroud tube,' vessel specimen holder and thermal shield. Additional
=tria'd pressu're' transducers for' static'and dynamic pressure are planned H
for the inler^ nozzle, high flow regions of the bottom plenum and the downcomer, region.
Extensive in air tests have been run en modified internals to correlate the instrument response.
51thoughi B&W will not relyJon it, a 11ewlitt Packard system of data
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acquisition 1and processing through. a computer will be used to help the engineers
.in the monitoring and reduction of data'during the hot functional test.
The standard 28 channel tape recorder will be'used'as the main data logging system.
The system is designed to determine'overall response of the various components rather than to verify the prediction of a transducer output. Therefore,.
acceptance, allowable ~and prediuted levels of-response.will have to be.
'related by sound engineering judgment.
The test program will be integrated l
Luith. Duke's hot functional ~ tests.
L At HEB's request.B&W will look into instrutenting the outlet nozzle for
. pressure.
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ENCLOSURE II he s y, - p ;, ',, '.
ATTENDA*0E LIST
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- NA!Ei LORGANIZATIO:L
- TITLE OF FUNCTION p
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FWR 4 Project ihnager :
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Eabcock & Wilcox
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jE.iO.[ Hooker Iabcock &:Wilcox Un ihnager:- Syste: Design
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- GE E. Kulyny.ch _ q Pabcock & Wilcox Oconee, Project Manager w-y
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- Duke Power Conpan/
Syctem Huclear Engineer -
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Component, Engineering s
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Ecbecck L Wilcox Nuclear Service - Occnce Site cE.sK tFair,
- Fabcock & Wilecx 0conec Project yanagers - Staff
- /J. ' L'!!'Atkins' Pabcock f.: 211cox Component Engineering J. C.' Sirr3nis
. Fabecek & Wilcox' Ecsearch Seccialist-i:
- D. FF Lan5
- TR - AE0 Chief, Machanical Encineering ? rand i S JN.!Hou; TR.-1AEC Mechan:. cal Engincaring Emnch 2
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.. Duke: Power Company.
- Principal Mechanicil Engineer c
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. LDuke. Povar.Comparf
- Aset.-Supt. Oconee Heclear'Sn.ticni
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