ML20141N358
| ML20141N358 | |
| Person / Time | |
|---|---|
| Site: | 05000000, Zimmer |
| Issue date: | 07/10/1978 |
| From: | Peltier I Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20141N278 | List: |
| References | |
| FOIA-85-782 NUDOCS 8603060271 | |
| Download: ML20141N358 (36) | |
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UrJITED STATES
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3 NUCt. EAR REGULATORY COMMisslON 3.
/M), 4j WASHINGTON, D. C. 20555 WEG/ f Od/
JJi ? !, *?8 JUi_10 1978 7
1 DOCKET NO. 50-358
-1 i
..q APPLICANT:
ZIlfiER NUCLEAR PQWER STATION
' ',1
SUBJECT:
SUMMARY
OF MEETING ON SRV DISCHARGE DEVICE AND ZIMM3 POOL,
]
OYNAMIC CLOSURE REPORT - JUNE 28, 1978
[,.
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s Backaround
.J On April ll,1978 a meeting was held with Zimer personnel to discuss 3
their plans to select and install a quencher SRV discharge device.
In addition we had discussed deficiencies in their plant unique Design J
Assessment Report (DAR).
This meeting sumary discusses the proceed-ings of the follow-up meeting held on June 28, 1978 related to the above topics.
At this meeting Zimer notified 'the staff of the specific quencher discharge device they have selected for installation in Zimer 4
along with their quencher qualification program.
In addition, they dis-cussed the Zimer Closure Report. The function of this closure report l
1s to address the deficiencies in the Zimer DAR to allow Zimer
}
licensing activities to proceed on schedule.
The attendance list and l
copies of the presentation material are attached.
Sumary:
1 l
1.
SRV_Oischarge Device t
1 Zimer personnel notified the staff that they have selected the KWU J
SRV discharge device for use in the Zimer plant.
The device is similar to that proposed for use in the Susquehanna plant with the exception that the Zimer quencher will use 10 inch versus 12 inch pipe for the Susquehanna quencher.These devices are to be installed in the Zimer plant prior to operation.
5 The applicant described the quencher qualification program.
The pro-gram consists of 1/12 scale tests, a KWU qualification analysis and testing program and inplant tests to be conducted at the time of Zimer startup operations.
The evaluation of the Zimer containment for SRV loads was previously I
conducted using loads for a ramshead SRY discharge device.
Zimer personnel see no need to reevaluate the containment for the KWU quencher loads since this device is expected to yield lower loads.
However, at the completicn of the Zimmer equipment reevaluation study Zimer might propose reduced loads on a case by case basis if
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justified by the quencher test program.
The function of the SRV 1/12 scale tasts is to provide a data base to snow the improved 0603060271 860114 PDR FOIA MORROWBS-782 PDR
i v.
. pjt 101978 performance of a quencher device over a ramshead device. A number of tests have been completed to investigate steam condensation stability, pool thermal mixing, air clearing loads, submerged structure loads and discharge line pressure. While the scale tests are not complete, the results to date support the improved performance of the quencher over the ramshead in each category.
The results of these tests will be submitted to the staff in a July report.
The staff raised questions regarding
- 1) the applicability of the scale tests to the KWU device and 2) the frequency specification of the current DFFR SRV load.
These questions will be discussed further at the next meeting with Zimmer personnel.
A presentation was made describing the Zimmer quencher support arrange-ment.
Two support schemes are under consideration.
The scheme to be utili:ed will be discussed in a future meeting.
The Zimmer inplant SRV test plan was discussed.
This included the pre-liminary test matrix and instrumentation.
The purpose of these tests is to confirm that the KWU quencher results in loads less than the plant design basis.
This will be done by comparing the measured plant response to the design oasis predicted response.
In contrast to previous SRV test programs these tests will emphasize measurements of the plant response as opposed to an emphasis on developing a new SRV loading fuction.
Reporting of the inplant test results will consist of a quick look report two months af ter the tests and a final report 6 months af ter test j
completion.
Details of the KWU test and analysis program to qualify the quencher were not available.
Tentative plans were made to discuss the KWU program i
with the staff in a meeting near the end of July 1978.
2.
Closure Report 4
Oraft copies of the Zimmer closure report were distributed for discussion.
Final copies of this report are to be submitted as an appendix to the Zimmer FSAR within the next few weeks.
This report has been submitted to resolve deficiencies in the Zimmer DAR.
The report discusses the plant unique application of pool dynamic loads for the Zimmer plants.
In several areas a more conservative approach has been taken by Zimmer for the loads than in the Mark !! generic program to expedite licensing of the Zimmer plant.
The staff expressed concerns that the schedule for the NRC Mark II generic pool dynamics SER and the Zimmer SER were incompatible.
To resolve this incompatibility a meeting or conference call will be held in July to ccmmunicate the 3RC pool dynanic. positions to Zimmer.
This will enable Zimmer to reflect the NRC positions in their closure report.
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$. 0 1973 Containment Systems branch personnel stated that the closure report con-tains information requiring review by a number of flRC branches.
It was agreed that the closure report should be sent to each of the following branches for review.iq the ~ appropriate area: Containment Systems, Pechanical Engineering, Structural Engineering, Analysis, and Reactor Systems Branch.
Irving A. Peltier, Project !4anager Light Water Reactors Branch flo.1 Division of Project fianagement
Enclosure:
As Stated cc: See,oage 4 e
a I
. cc:
T.wy B. Conner, Jr., Esq.
David B. Fankhauser, PhD Conner, Moore & Corber 3569 Nine Mile Road 1747 Pennsylvania Avenue, N. W.
Cincinnati, Ohio 45230 Washington, D. C.
20006
~
Thomas A. Luebbers, Esq.
Mr. William J. Moran Cincinnati City Solicitor General Counsel Room 214 City Hall The Cincinnati Gas and Electric Cincinnati, Ohio 45202 Company P. O. Box 960 Mr. Stephen Schumacher Cincinnati, Ohio 45201 Miami Valley Power Project P. O. Box 252 Mr. William G. Porter, Jr.
Dayton, Ohio 45401 Porter, Stanley, Arthur and Platt Ms. Augusta Prince, Chairperson 37 West Broad Street 601 Stanley Avenue Columbus, Ohio 43215 Cincinnati, Ohio 45225 Mr. Peter H. Forster, Vice President The Cincinnati Gas and Electric Energy Resources Company The Dayton Power and Light ATTN: Mr. Earl A. Borgmann Company Vice President - Engineering P. O. Box 1247 P. O. Box 960 Dayton, Ohio 45401 Cincinnati, Ohio 45201 J. Robert Newlin, Counsel The Dayton Power and Light Company P. O. Box 1034 Dayton, Ohio 45401 Mr. James 0. Flynn Manager, Licensing Environmental Affairs The Cincinnati Gas and Electric Company P. O. Box 960 Cincinnati, Ohio 45201 Mr. J. P. Fenstermaker Senior Vice President - Operations Columbus and Southern Ohio Electric Comoany 215 North Front Street Columbus, Ohio 43215 m
ATTEllDAtlCE LIST ZIMtiER/flRC MEETIllG JUtlE 23, 1978 CG&E COMPAtlY R. Brinkman J. Flynn SARGEtli & Lut10Y A. Meligi J. Kurowski K. Kay C. Krishnaswamy R. Priski R. Crawford G1 I. Gray LILCO H. Chau flVTECH W. McConaghy A. Deardorff BLfl C. Tung P. Huber ST0tlE & WEBSTER
- 0. Tuckmantel R. PJause S. Chow
ATTENDANCE LIST (CONT'0)
HRC H. Brammer R. Tedesco J. Kudrick T. Su C. Anderson W. Butler W. Paulson S. Hou F. Cherny a
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AGENDA JUNE 28, 1978 WHZ/NRC !!EETING 1.
SRV Discharge A.
Evaluation Consideration B.
Device to be Used C.
Schedule for Installation
- D.
Tests to Confirm 2.
WHZ Closure Report A.
Loads Considered B.
Individual Load Definitions C.
Load Combination Considered D.
Design Assessment for Pool Dynamic Loads E.
Modifications & Resultant Improvements O
e O
e a
i SRV DISCllARGE DEVICE CONSIDERATIONS i
1/12-SCALE TESTS PERFORMED TO EVALUATE:
i STEAM CONDENSATION STABILITY t
SUPPRESSION POOL THERMAL MIXING CONTAINMENT AIR CLEARING LOADS SUBMERGED STRUCTURE LOADS
);
DI.SCHARGE LINE PRESSURES i
l PURPOSE:
TO PROVIDE A LARGE ' DATA BASE TO SUPPORT I
THE SELECTION OF A DEVICE FOR THE PLANT i
EARLY RESULTS REPORTED AT 4/11/78 flRC MEETING j
(
j-ADDITIONAL RESULTS PRESENTED TODAY CONDENSATION TESTS AIR CLEARING TESTS i
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CONDENSATION TEST PROGRAM PURPOSE:
INVESTIGATE THE CONDENSATION STABILITY AND THERMAL MIXING OF VARIOUS DEVICES OVER A RANGE OF POOL TEMPERATURES TESTING OF A QUALITATIVE / SCOPING NATURE DEVICES RAMSHEAD DRUM-00ENCHER T-QUENCHER FACILITY SCALING POOL GEOMETRICALLY SCALED DISCHARGE DEVICES GE0 METRICALLY SCALED NUMBER OF QUENCHER HOLES fiEDUCED BY A FACTOR 0F 4 PRESSURE NOI SCALED - AMBIENT STEAM MASS FLUX NOT SCALED
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$7,20,50 LB/SEC-FT2 l
TEMPERATURES FROM AMBIENT TO BOILING e
6/28/78 WJM L
nutech J
o RESULTS FOR ONE-INCH RAMSHEAD 2
(MASS FLUX = 50 LB/FT -SEC)
ERCERIETAxt 14.
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RESULTS FOR ONE-INCH RAMSHEAD - *-
2 (MASS FLUX = 20 LB/FT -SEC) 6 RUN o
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t RESULTSFORDRUM-90ENCHEg (MASS FLUX - 58 LB/SEC-FT )
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SUMMARY
OFC0f1DEllSAT!0NTESTRESULTt STEAM FLUX THRESHOLD PEAK PRESSURE DEVICE RATE (LBM/FT2-SEC)
TEMPERATURE (*F)
AMPLITUDE (PSID)
RAMSHEAD 50.0 170 14.5 20.4 170 5.6 6.5 ti/A 1.7 T-00EtlCHER 58.9 ft/A
<1.0 24.0 ft/A
<1.0 7.6 ft/A
<1.0 DRUM QUEllCHER 58.2 190 3.0 23.7 ft/A 1.3 7.6 ft/A 1.3 tt/A = fl0T APPLICABLE (fl0 IllSTABILITY OBSERVED).
6/2?/78 WJM nutech
CONDENSATION TESTING
SUMMARY
AT SMALL SCALE, ALL DEVICES SHOWED GOOD MIXING RAMSHEAD SHOWED WELL DEFINED TEMPERATURE THRESHOLD (s170')
PEAK C0flTAlflMEilT PRESSURES' DECREASED WITH DECREASING MASS FLUX DRUM QUENCHER EXHIBITED SLIGHT lilSTABILITY AT HIGH MASS FLUX T-QUENCHER PROVIDED STABLE PERFORMANCE FOR ALL TEST CONDITIONS 6/28/78 WJM nutech
SMALL-SCALE QUENCHER AIR CLEARING TESTS PURPOSE:
COMPARE RELATIVE AIR CLEARING PERFORMAtlCE OF VARIOUS QUEtlCHER DEVICES TO RAMSHEAD FACILITY EVALUATI0ft TESTS QUEtlCHER SCREElllflG TESTIrlG RESULTS REPORTED AT 4/11/78 MEETitlG ADDIT 10flAL TESTitlG COMPLETED PARAMETRIC TESTS FOR AIR CLEARiflG OtlG0lilG EFFORT 6/28/78 WJM litateac:11
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ADDITI0llAL T-00EllCHER SCREENIllG TESTS OBJECTIVE:
OPTIMIZE T-00EllCHER DEVICE PERFORMAtlCE EVALUATE T-00EllCHER VARIAT10tlS ARMS:
EXTEllDED ARM T-QUEllCHER EXTEllDED ARM T-00ErlCHER WITH HOLES Ill VERTICAL PIPE SHORT ARM T-QUE!!CHERS HOLE PATTERti:
GRADUATED H0LE PATTERtl UllIFORM H0LE PATTERil ADDED SUBMERGED TARGET (SIMULATIllG COLUMfD 5/28/78 WJM nutech
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ADDITIONAL QllENCllER
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SCREENING TESTS T.
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i IiEVICE HAFISilEAD T-QUENCIIER T-QUENCIIER T-QUENCI!ER T-QUENCllER X-QUENCllER il 82
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El:FlirTIVE s1450 cm 735 cm 735 cm 735 cm 735 cm 700 cm 1101.11 AHLA (ACIML AREA) i AltH LiiNGTII N/A 10' 10'
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SIllillERGENCE 16' 21' 6" 21' 6" 21' 6" 21' 6" 21' 6" 3
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AI.L DIMENSIONS ARE FULL SCALE U
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DISCIIARi;E EXTENDED EXTENDED' EXTENDED EXTENDED EXTENDED It!STANCli (FH0el { )
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PRELIMINARY ERCERIEIARY SRV DISCHARGE RESULTS 1/12-SCALE (NORMALIZED)
P+
P-P-
SUBMERGED PIPE BUBBLE DEVICE P+g Pfg Pg STRUCTURES PRESSURE FREQUENCY a
g g
LOAD (Hz)
RAMSHEAD 1.0 0.46 1.0 1.0 1.0 13.5 T-QUENCHER #1 0.57 0.44 0.95 0.73 1.23 13.5 T-QUENCHER #2 0.68 0.51 1.11 0.48 1.23 14.7 T-QUENCHER #3 0.39 0.37 0.81 0.30 1.17 17.5 T-0UENCHER #4 0.16 0.26 0.56 0.32 1.13 15.9 T-00ENCHER #5 0.59 0.44 0.95 0.83 1.09 14.5 T-00ENCHER #6 0.67 0.49 1.07 1.16 1.11 14.3 T-0UENCHER #7 0.46' O.42 0.90 0.99 1.13 15.6 T-00ENCHER #8 0.67 0.50 1.08 0.60 1.17 16.0 T-00ENCHER #9 0.22 0.30 0.66 0.46 1.20 15.6 X-QUENCHER 0.52 0.44 0.95 N/A 1.15 14.7 1
6/28/78 WJM l
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PARAMETRIC TESTING PROGRAM 3
PURPOSE:
DETERMINE PARAMETRIC EFFECTS ON AIR CLEARING TEST PARAMETERS LINE DIAMETER LINE AIR VOLUME LINE TEMPERATURE WETWELL PRESSURE TESTS TO EVALUATE RAMSHEAD AND QUENCHER RESULTS TO BE EVALUATED POOL PRESSURES PIPE PRESSURES BUBBLE FREQUENCY TESTING 50% COMPLETE S/23/73 WJM nutech
SUff1ARY OF SCALED SRV TEST RESULTS TO DATE j
ALL T-QUENCHERS PROVIDED LOWER CONTAINiiENT LOADS THAN RAMSHEAD~
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T-00ENCHERS D0 i10T li1 CREASE PIPE PRESSURES SIGNIFICANTLY r
BUBBLE FREQUENCIES ARE NOT SIGilIFICANTLY DIFFERENT FOR T-00Ei1CHERS OR RAMSHEAD 4
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ZIM?1ER IllPLAilT SRV TEST PURPOSE
- CONFIRil THAT T-0VENCHERS RESULT IN LOADS LESS THAN PLNIT DESIGN BASIS METHOD
- COMPARE 11EASURED PLANT RESPONSE WITH DESIGN BASIS PREDICTED RESPONSE nutech
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TEST CONDITIONS FOR IN-PLANT TEST (PRELIllI.'!ARY) o COLD-PIPE TESTS
~
LONG SRV DISCHARGE LINE SHORT SRV DISCHARGE LINE MULTIPLE VALVE ACTUATION o
HOT-PIPE SECOND POP TESTS CONDUCT AT ACTUAL WATER RECOVERY LEVEL C0iiDUCT AT TIME WATER RECOVERS TO NORMAL LEVEL o
EXTENDED BLOWDOWil FOR POOL MIXING o
TEST iMTRIX TO IilCLUDE APPROXII%TELY 20 TESTS
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l 6/28/73 I
WJR l
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INSTRUMENT APPLICATION (PRELIMINARY)
DRYWELL/ PEDESTAL ACCELEROMETERS SUPPRESSION POOL PRESSURE TRANSDUCERS TEMPERATilRE SENSORS WETWELL FLOOR AND WALL STRAIN GAUGES ACCELEROMETERS DRYWELL FLOOR SUPPORT COLUMNS STRAIN GAUGES DOWi! COMERS STRAIN GAUGES SRV LINES PRESSURE TRANSDUCERS LEVEL SENSORS STRAIN GAUGES TEMPERATURE SENSORS l
QUENCHER STRAIN GAUGES TOTAL 80 FAST CHANilELS 20 TEMPERATURE SENSORS L.
6/28/73 nutech e
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REPORTIllG 0F IN-PLANT RESULTS i
t QUICK LOOK DATA 20% OF CHANflELS RECORDED AT REAL TIME TO BE USED FOR ~" QUICK-LOOK" EVALUATION QUICK-LOOK DATA REPORT TWO MONTHS AFTER TEST b
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OTHER DATA ANALYSIS
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RESPONSE SPECTRA l
L TABULATIONS OF MAXIMUMS / MINIMUMS AND TIMES FOR EACH DATA. CHANNEL COMPARIS0ilS WITH STRUCTURAL RESPONSE PREDICTIONS CONDITIONS TESTED DESIGN BASIS CONDITIONS i
f FINAL REPORT
~6 MONTHS AFTER TEST 4
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6/18/78 l
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- i AGENDA WHZ/NRC MEETING JUNE 28,1978 1.
SRV DISCHARGE:
A.
EVALUATION CONSIDERATIONS B.
DEVICE TO~BE USED' C.
SCHEDULE FOR INSTALLATION D.
TESTS TO CONFIRM 2.
CLOSURE REPORT:
A.
LOADS CONSIDERED B.
LOAD DEFINITIONS C.
LOAD COMBINATIONS D.
DESIGN ASSESSMENT - POOL DYNAMIC LOADS E.
MODIFICATIONS & IMPROVEMENTS s
HCB/6-28-78 i
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WM. N. ZIMMER 4
i CLOSURE REPORT i
PURPOSE:
1.
DOCUMENT ALL REQUIRED l! CENSING INFORMATION LOADS
~ ~ " ~ ~ ~ ~
LOAD SPECIFICATIONS LOAD COMBINATIONS ACCEPTANCE CRITERIA PLANT MODIFICATIONS 4
PLANT MARGINS CONFIR!1ATORY IEST PROGRAMS 2.
ENABLE LICENSING TO PROCEED ON SCHEDULE SER SEPTEMBER 1978 OL JUNE 1979 i
i i
i 4
i HCB/6-28-78 i
i
l WM. H. ZIMMER CLOSURE REPORT COMMITMEllTS:
1.
EVALUATE ADDITIOilAL LOAD COMBINATIONS A.
A.P. + S.S.E.
B.
0.BE + SRVx 2.
EVALUATE PER MEB #6 CRITERIA 3.
EVALUATE ABS 4.
IDENTIFY & JUSTIFY lllDIVIDUAL CASES WHERE LESS THAf! ABS 5.
MODIFY PLAtiT & EQUIPMEf1T AS REQUIRED 6.
IllSTALL QUENCHERS 7.
PERFORf4 IN-PLAtlT SRV TESTS HCB/6-28-78
WM. H. ZIMMER CLOSURE REPORT CONCLUSION 1.
ALL PERT!tlENT lilFCRMATION DOCUMENTED LOADS LOAD COMBitlATIONS ACCEPTAtlCE CRITERIA PLAtlT MODIFICATIONS PLAtlT MARGINS CONFIRMATORY IESTS 2.
EVALUAT!0tlS PER NRC POSITIONS ARE 85% COMPLETE LOAD COMBINATIONS ACCEPTAtlCE CRITERIA AES 3.
RESuLTS OF EVALUAT10tlS TO DATE DISCUSSED WITH NRC (3-23-78) 4.
ADDIT!0tlAL EVALUATION RESULTS SCHEDULED FOR NRC DECISIONS Ill FALL.
5.
PLANT MODIFICAT!0tlS ARE BE!!!G MADE.
6.
COMMITMEtlT TO IDENTIFY AtlD JUSTIFY WHERE ABS IS NOT MET.
7.
COMMITMEt<T.TO lilSTALL QUENCHERS
- sigil!FICAtlT LOAD REDUCTION OVER RAMSHEAD 8.
COMMITMErlT TO PERFORM lil-PLAtlT TESTS 9.
THUS:
- ZIMMER HAS PROVIDED SUFFICIEllT DOCUMEllTATION AtlD COPMITME!!TS TO ALLOW LICE!!S!!!G TO Pc0CE:3 Cil SCHEDULE.
HCS/6-28-78
=
, 'i,.-
TABLE 1 PROPOSED TEST !! ATRIX t
l TEST # BREAK SIZE BREAK INITIAL SUB." RC.
DRWELL INITIAL EFFECT UNDER
(%DBA) n*PE POOL TEMP.
(FT.)
AIR MASS (%)
INVESTICATION
(
- y)
\\
r 1
100 Steam 70 11 100 Te=perature 2
l 120 3
l
/
3 70 9
Sub=erEence I
4 13.5 s
I
/
5 70 11 Vent Flev Rate i
6 40 f
- t s
(
7 100 50 Air Content 8
70 i
i 9
40 I
s y
10 100 100 Repeat y
a 11 70 120 100 Temperature
/
12 100 Liquid 70 11 100 Te=p.
LIQUID 2
13 120 Y
r.
I 14 70 50 Air I
I 15 1l 120 s
l 16 70 Liquid 120 11 100 Vent Flow Rate 17 40 Liquid 70 11 100 Vent Flow Rate la Repeat test - Paraceters to be established later 19 Repeat test - Parameters to be established later i
20 Repeat Test -- Parameters to be established later 18 i
.t ' '.
TABLE II PRELIMINARY INSTRUMENTATION LIST (1)
Quartity/
.,l, Scan Rate Location Type Purpose #
100 Hz 1000 Hz Steam Generator Pressure Transa.
System Pressure 1
Ap Transmitter
. Liquid Icvel (flow rate-lig. blowdwn) 7 Blowdown Line Pressure Transa.
Flow rate - vapor blowdowns 2
l l
Drywell Pressure Transa.
System Pressure 1
1 Pressure Transa.
Liquid Level 1
Thermocouples System Temperatures 2
Downconer Pressure Transa.
Static Pressure (vent acoustics) 5 5
Ap Transmitter Vent flow rate 2
T1.e rmocouples Vent temp., pool water level 4
-+
m i
Suppression Pool Pressure Transa.
Pool Boundary Pressure 13 13 l
Pressure Transa.
Wetwell Altr, mice Pressure 1
/
Pressure Transa.
Liquid Lesel 1
Accelerometers Tank Wall Hotion 4
4 l
[
Strain Cauge Bridge Tank Wall Strain 4
4 l
Thermocouples
_ Pool Temperature 10 58 27 Total Channels:
1000 Hz scan - 27 (specified here)
I 100 Hz scan - 58 (specified here)
- See next page for 100 Hz scan - 6 (to be specified later) additional details.
kII lnstr' mentation list for lateral loads is provided in Appendix A.3 u
e
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