.'Enclosure 2

C !

.

MEETING AGENDA .,

OYSTER CREEK CORE SPRAY SPARGER REPLACEMENT'-

APRIL 15, 1981 .

,

\

.

I. INTRODUCTION JIM KNUBEL (JCP&L)

A',' HISTORY

B'.' MEETING OBJECTIVES

II. DESIGN SUMMARY. JAY ERBES (G.E.)-

.

A. DESIGN CRITERIA

B'.' REPLACEMENT DESCRIPTION

III. STRUCTURAL DESIGN JIM CHARNLEY (G.E.)

A. STATIC ANALYSIS-

B. DYNAMIC ANALYSIS

C. DYNAMIC RESPONSE TESTING

IV. REACTOR PERFORMANCE JIM OATES (G.E.) -

A .' NORMALOPERATION~

B. TRANSIENT AND ACCIDENT

V. CORE SPRAY PERFORMAMCE AND TESTING JIM OATES (G.E.) |

A. DESIGN REQUIREMENTS

B. CONCEPTUAL OVERVIEW

C'.' FLOW DISTRIBUTION~ - - ~

D. SPRAY DISTRIBUTION

i

SUMMARY AND FUTURE SCHEDULE JIM KNUSEL (JCPEL)

B 2 05 350 (VI .oo

, ,.

.

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.

.~ OYSTER CREEK CORE SPRAY SPARGER REPLACEMENT |,

|

HISTORY.

1 CRACK DISCOVERED BY VISUAL INSPECTION1978 -

MULTIPLE CRACKS DISCOVERED BY IMPROVED1980 -

VISUAL TECHNIQUES AND UT,....

JCP&L SUBMITTAL SUGGESTED SPARGER REPLACEMENT-

WITHIN 2 REFUELING CYCLES

NRC SER REQUIRED REPLACEMENT WITHIN 1 CYCLE-

JCP&L AND NRC STAFF MEETINGOCT 1980 -

.

JCP&L SUBMITTAL TO NRCMAR 1981 -

,

APR 1981 - JCP8L AND NRC MEETING

.

JK-1.

4/15/81

. _ -

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.

0YSTER CREEK CORE SPRAY SPARGER REPLACEMENT'

,

.- .<

~

MEETING OBJECTIVES

1. CONCURRENCE WITH DESIGN QUALIFICATION PROGRAM ;

e- APPLICABLE CODES i

e ANALYTICAL SUPPORT

e TEST PROGRAM !,.

i

II. ESTABLISH REQUIRED DOCUMENT SUBMITTALS,

o PRELII:! NARY MODIFICATION REPORT (3/81)

e FINAL MODIFICATION REPORT (10/81)'

i

'

III.- ESTABLISH SCHEDULE OF PRESENTATIONS

e CORE SPRAY TESTS RESULTS (9/81)

IV. DISCUSS PRELIMINARY MODIFICATI0ll REPORT

.

Y

JK-;l4/15/81

__ . - -

!. ,,

.

OYSTER CREEK .-

\-.

f ~0VERHEAD CORE SPRAY SPARGER'

|

DESIGN CRITERIA.

I. SYSTEM

e 2,45 GPM/ BUNDLE

e DUAL SYSTEMS - 100% REDUNDANCY--

e i1Ih! MUM IMPACT ON EXISTING IllTERt|ALS

AND REACTOR OPERATI0tlS

e ONE SPRAY N0ZZLE PER 4 BUNDLES.

'

II. APPLICABLE CODES

s ASME SECTION XI

s ASME SECTION III, Sil3SECTI0tl flG AS'

DESIGN GUIDE

e SAFETY ESSENTIAL, 10CFR21 APPLIES'

III, MECHANICAL -

e WATER SUPPLIED THROUGH EXISTING

REACTOR PRESSURE VESSEL t!0ZZLES'

e REMOVA3LE FOR REFUELING AND INSPECTI0tl

e MATERIAL - TYPE 316 (L) OR 304 (L)'

f.'02% MAX, CARBON'

.

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DISTRIBUTION PIPES T, CD' Gb \

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L. WATER INLET.-

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SUPPORT " TRUSS"-.

SPRAY H0ZZLESSUPPORT RING - -

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SUPPORT STRUCTURE1

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SUPPORT BEAMS-

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SPARGER SUPPORT STRUCTURE

PLAN VIEW

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.e # SHROUD HEAD~

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ATTACHMENT LUGS| '

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JGE - 7f4/15/31

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N0ZZLE ARRANGEMENT .

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ORIFICE1 IN. PIPE

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3h IN. PIPE '

N0ZZLE

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TARGET SURF ACE"

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JGE - 8!4/15/81

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SOPPORTRING |-

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SHROUD l'

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TOP GUIDE

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4/15/81-

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ____ _

.

-. .

e

'

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'

0YSTER CREEK CORE SPRAY SPARGER REPLACEMENT.

,

. ..

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4

. . .' .

#

' ' '

STRUCTlJRAL DESIGN~

- . ..- - - -

. ..,. ._

- . ... . .

. . ... . .

-.

.

CORE SPRAY SPARGER AND CORE SPRAY LINE.

.

.

A. STATIC ANALYSIS ..

-.

-

. . .

'

B'. DYNAMIC ANALYSIS~

-

..

.

: C. DYNA!ilC FESPONSE TESTINGe

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STATIC ANALYSIS'

-

.--:- ... .

. . .

.-- . .. . .

- -

.- . .. . .

..

,

-A. SIZING- '

.

DRAG COEFFICIENT = 1' '

LIFT COEFFICIENT = 1- -..

..

.

. DAMPING = 2%-

-

'' '

EXCITATION FREQUENCY = NATURAL FREQUENCY- -.

'

' PPLIED LOAD = 25 TIES HYDRAULIC LOADA-. .

ALTERNATING STRESS <10 KSI.

. ,

' '

B'. ' DEAD WEIGHT-

-- -

- -.

,.. ,

* - .

,

C. THERMAL''

'-

-.

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D. SEISMIC~'

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.__ _ _. - . _.. - --

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..

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SPARGER DYllAMIC Ai1ALYSIS :.

,

, . .-

..

-. . ..

-.'

.. ..

~ A. MATHEllATICAL MODEL -- -..,

, , -,.

. . ... ..' . '

1332 DEGREES OF FRF.EDOM-..

.

. .LOWEST NATURAL FREQUEllCY = 42 HZ

'

DAMPIllG = 1.5%~

.

. . .

~

-B'.' H'YDRAULIC FORCE-

''

. FLUCTUATING LIFT COEFFICIENT = .2 CYLINDERS'

-

- -

. ...

= 1.0 PLATES

APPLIED SIPULTAt1E0VS TO ALL NODES IN PHASE-

, PREDICTED VORTEX SHEDDING FREQUENCY' '

=.13HZ(3-1/2." PIPE 5)' -

-.

.

. ..

. _

= 10 HZ (5" PIPES)'--

-

- ..

.

= 11 HZ (1.5" BEAMS).

,.

APPLIED FREQUEf1CY = 5, 10, 13, 15, 20, 25, 30, 35, 40-

'

AtlD AT 5 LOWEST NATURAL FREQUENCIES-

..

-

.

.

~ .'C. CRITERIA.

ALTERNATIf1G STRESS 4 10 KSI-

,.

.

.

.. ,

.

JeZ-3.

. . '' '*

4/Elal- -.

.

-

. . .

-.

,

.

'

. LINE DYNAMIC ANALYSIS*

.,

:-.

.. '-

..

. . .*

f

.- -- - -

- .. .- - .

.. .:. . '

A. IMTHEMATICAL l'0 DEL-

-- --- . .

,

' .- -.

...

'

. 174 DEGREES OF FREEDOM- -

-

.

LOWEST NATURAL FREQUENCY = 114 HZ

DAMPING = I4 % -

,,

- -

. .

B. HYDPAULIC FORCE-

., ,

FLUCTUATING LIFT COEFFICIENT = .2'

-

.-

. ., ,

APPLIED SIMULTANEOUSLY TO ALL NODES IN PHASE

PREDICTED VORTEX SHEDDING FREQUENCY = 7 Ilf,

.

APPLIED FREQUENCY = 10, 20, 30, 40, 50, 60, 70, 80'-

-.

, ,

. . . .

,

-- AND AT 5 LOWEST NATURAL FREQUENCIES-

.,

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C. CRITERIA

' ALTERNATIllG STRESS < 10 KSI-

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..

Jsc-4-- .

. .. . ..

4/6/81.

. .. - . .

-

..

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..

--. .

.

. ...

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.' -. .

- .. . . .

.--

. . . .

,. ..- - - .- . .. .

. . .. ._ _

.' '

. DYNAMIC RESPONSE TESTING~

--. .

- .. ...

.

-

.-

.

-.

,

-:I

A. SPARGER .

~

-.. . .

SHOP TEST TO VERIFY NATURAL FREQUENCIES -

, ,

'

AND l'0DE SHAPES FROM MATHEMATICAL MODEL.

,

-

. .

B'. LINE'

-

. .-

.,

~ ''

. FULL SC LE INTER:!AL FLOW TEST TO VERIFY-

. . ..

PERFORMANCE DURING CORE SPRAY' INJECTION-

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REACTOR PERFORMAllCE

NORMAL OPERATION .

' '

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'.

o SEPARATOR / DRYER PERFORMANCE- N0 PERFORMANCE DEGRADATION DUE TO REDUCED.

SEPARATOR / DRYER SPACING

SPARGER HEADER COULD IMPACT PERFORMANCE OF-

PERIPHERAL SEPARATORS (18 0F 151 TOTAU,.

TOTAL BLOCKAGE RESULTS Iti:

(' 1,7 PSI PRESSURE DROP INCREASEo

CARRYUllDER WITHIN DESIGN LIMITSo

CARRYOVER WITHIN DESIGN LIfilTSo

-

,

N0 IMPACT ON PLAtlT PERFORMANCE

. .

o SHROUD LEAKAGE-

STEAM SKIRT PREVENTS STEAM LEAKAGE TO ANilVLUS-

- CONSERVATIVE ANALYSIS SHOWS SKIRT REMOVAL:

<0.03% CARRYUt! DER INCREASEo

NO RECIRC SYSTEM PERFORMANCE DEGRADATI0tlo

<0.4 BTU /LB CORE INLET EtiTHALPY INCREASEo

CYCLE SHORTEilED BY ONE-HALF FULL POWER DAY

INCONSEQUENTIAL EFFECT ON NORMAL PLANT OPERATION

JH0 - 14/15/81

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. . . .

i

*

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REACTOR PERFOR.''.ANCE :

NORMAL OPERATION.-(CONTINUED)'

.

.

.

o RECIRCULATION SYSTEM PERFORMANCE

- SPARGER INCREASES AP <0.8 est

SUBSTANTlAL EXCESS FLOW CAPABILITY EXISTS-

NO RECIRCULATION SYSTEM PERFORMANCE CONCERN -- -

EVEN CONSIDERING BLOCKED SEPARATORS.

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$

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JHO - 2 |

4/15/81-

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v v -w- w-

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REACTOR PERFORMANCE .

TRANSIENT / ACCIDENT CONDITIONS /'

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.'. .

o CORE HYDRAULIC STABILl!Y~

CONSERVATIVELY MODELED .-

DECAY RATIO INCREASES * 0,04-

NO IMPACT BECAUSE DECAY RATIO CONSIDERING OVERHEAD.

CORE SPRAY SfARGER IS SIGNIFICANTLY LESS THAN 3.0..

,

o ANTICIPATED OPERATIONAL TRANSIENTS'

PEAK VESSEL PRESSURE INCREASES < l est-

PEAK HEAT FLUX INCREASES < 0.5% FOR PRESSURIZATION-..

EVENTS

CHANGES TOO SIALL TO AFFECT RELOAD LICENSE ANALYSIS... 4.

'

._ o INTERNAL PRESSURE DIFFERENCES

SHROUD STEADY STATE HYDRAULIC LOADS INCREASE DUE-

TO HIGHER aP

INCONSEQUENTIAL DYNAMIC LOAD INCREASE-

SUBSTANTIAL MARGIN TO DESIGN LIMITS ACCOMODATES HIGHER

AP

JHO - 34/15/81

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I

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P Q

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REACTOR PERFORMAilCE :.

/ TRAllSIErlT/ACCIDEllT C0flDITI0flS, '

(CONTINUED)

o LOSS OF COOLA!!T ACCIDEllTS.

NO EFFECT ON CURRENT LOCA AtlALYSES WITH-

REQUIRED CORE SPRAY FLOW / BUNDLE

GRID REMOVED DURING REFUELING --.

.

'

o ZER0 LOCA POTEllTIAL

MAINTEllANCE ISSUE: .

-

o ONE SYSTEM SUFFICIENT TO FLOOD BYPASS.

REGION a SPILL OVER INTO CHANNELS.

.o UTILIZE ADMIf1ISTRATIVE PROCEDURES

TO PREVEilT lilADVERTENT DRAlillilG

NO REDUCTI0ft IN SAFETY MARGIflS.

,

JHO - 4~4/15/81

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+

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f. ;

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5

CORE SPRAY PERFORMANCE AND TESTINGY

;-

.

.

.

o DESIGN REQUIREMENTS,

-

. .

o CONCEPTUAL OVERVIEW.

'

! o FLOW DISTRIBUTION .

.

.

o SPRAY DISTRIBUTION

!'

<.

I*

|-

:.

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:1

, *1

!

,

.i

.;

)

!.

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JHO - 5ll/15/81

:

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_ _ . . - - _ _ _ -. ._ . _ . _ . _ . _ _ . . - _ _ . . _ . . _ _ - - _ _ . . _ . _ _ _ _ . . _ _ _ _ _ _ _ . . _ . . _ , _ _ _ . _ _ .-

'O,O '

.

#CORE SPRAY PERFORMAllCE AtlD TESTING

*

. .

DESIGN REQUIREMEllTS'-

'

o' ORIGINAL DESIGN

BUNDLE FLOW:-

2.45 GPM

-

SPARGER FLOW:~

- -

.

3400 GPM a 125 PSIA VESSEL.

- .

o OVERHEAD CORE SPRAY SPARGER

ORIGINAL DESIG!1 REQUIREMENTS-

,

PLUS

VESSEL ENVIRONMENTAL RANGE:

15 PSIA AIR, 15 TO 125 PSIA STEAM

t

e

JHO - 6 ,

4/15/81

. .- . .

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~

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CORE SPRAY PERFORMAi1CE AllD TESTING: :

'-,

CONCEPTUAL OVERVIEW

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o BUNDLE FLOW AVAILABLE

3400 ^: 6 GPM/BUilDLE (GROSS)560 . -

a 4.'5 GPM/ BUNDLE (NET)~

,

-

.

o APPR0X. 2 GPM/ BUNDLE EXCESS

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o 11AXIMUM MARGIN DESIGN OBJECTIVE

'

DIRECT BUNDLE INJECTION--

.

DIRECT SPRAY TO 4 BUNDLES-

o REDUf1 DANT SYSTEMS > 4 BUNDLE SPRAY

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JH0 - 74/15/81

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CORE SPRAY PERFORMANCE AtlD TESTING,'.

.

FLOW DISTRIBUTION

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.

o PER SPARGER ARM,

o PER SPRAY N0ZZLE.

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o EASY TO ACHIEVE UNIFORMITY

. .

.

o SPARGER PRESSURE LOSSES ARE IMPORTANT,

SYSTEM CAPACITY

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o OVERHEAD DESIGN STRAIGHTFORWARD.

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JHO - 8 1

11/15/81

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CORE SPRAY PERFORMANCE AND TESTING,-,,-

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SPRAY DISTRIBUTION

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o THE CONCEPT,

- COVER 4 BUNDLES /N0ZZLE.

- WORST ENVIRONMENT-,

, .

OVERLAP SPRAYS-.

MULTIPLE COVERAGE / BUNDLE

N0ZZLE LOCATION INSENSITIVITY

o THE DESIGN PROCESS

EMPIRICAL EMPHASIS-

-

STRAIGHTFORWARD ANALYSIS-

.

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JHO - 12f1/15/81

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ICORE SPRAY PERFORP.AllCE AND TESTING ,

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SPRAY DISTRIBUTION-

o' N0ZZLE SELECTION

SINGLE N0ZZLE - HIGH PRESSURE STEAM-

.

SINGLE N0ZZLE - LOW PRESSURE STEAM-

'

:

- 4 N0ZZLES - AIR,

. .

o SELECTED N0ZZLE - STEAM TESTS

MULTIPLE N0ZZLE INTERACTION- -

SINGLE SYSTEM

DUAL SYSTEMS.

LOCATION SENSITIVITY-

FLOW SENSITIVITY]-

o- SPRAY MODULE QUALIFICATION

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4

JHO - 144/15/81

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a..o=

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CORE SPRAY PERFORMANCE AND TESTING

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SPRAY DISTRIBUTION,

-

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-.

'

o FULL CORE SIMULATION IN AIR

DIRECT VERIFICATION OF MODULAR AIR TESTS- -

VERIFICATION OF FLOW DISTRIBUTION ORIFICING-

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FULL CORE BuilDLE FLOW MEASUREMENT-

VERIFICATION SPARGER FLOW CHARACTERISTIC-

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o fit!AL SPRAY QUALIFICATION

JHO - 15

4/15/81.

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MEETING SUMMARY DISTRIBUTION

DocketNRC PDR ,

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Local PDRORB RE= dingJ. Olshinski

= S . .- Va rgaT. IppolitoR. ClarkJ. StolzD. CrutchfieldW. PaulsonJ. Lombardo -0 ELD

OI&E.(3)HSmithACRS (10) ~

NSIC*

ETERA? m|eK. WichmanH. Shaw '

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|h}:C. Y. Cheng .

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B6R. Frahm

__d 1A M 1 4 196 W' 'G. walton _

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