ML18018A547

Forwards Response to Draft SER Open Items 32 & 33 Re irradiation-strengthened Zircaloy Yield Strengths & Predicted Cladding Collapse Time Exceeding Lifetime of Fuel, Respectively

ML18018A547
Person / Time
Site:	Harris
Issue date:	05/18/1983
From:	Mcduffie M CAROLINA POWER & LIGHT CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
LAP-83-175, NUDOCS 8305200384
Download: ML18018A547 (8)

Text

RKGULIAITOR

'VFOR'>>IAIT'ION DCSTRLBUTCOIVI TKNI (RZOS)'CCESS I 0>>Vr, IVBR 8305'29 0384..

DGCI O'A>>TEIL 8'3/0 Sr/'l O'VOITIARZZKOle~ INOi FIACCLI!50 400 Shearroflr ilalrrj si IVUc',lear: Power

~ Piia'nti U'nj ti il~ C'a'roiiiinar 50 401>> Sheair oni Henri sLNLrc,lear: PoHerr Pile'nt>>r U'ni ti 2'i ~ C'aroiliinei AUTH AN'ANEI AUTHOR'FFCLIIAITCONI 4lCOUFFCKrg Mi,AICblrollii nel PbWerl II'ligh ti Gbli.

RKGCP>>,NANSEI RKCCPCEIV>>TI AFFZLIIAT'IONr DENTO>>V<KH.R'.,

Qlf4j ce orfr IVUcl'aar Reactorr RegUI'alti on'r. Dli r ectoPi DOCKEITI 4'5000400, 05000401>>

SUB JECITi:

f<og rra<rds~ response tol d'r'alf ti SER: Otren>> Itelns: 32:

8 33>> re i,r raUialtiiop<<strengthen'ed>>

Eircelloy; yield strengths L

predi'ctedi cilekldingl cail labse time'xceedingl liifat ime oifr. fLrely r espeL t>>i ve1ir>>

~

DCSTRIBUTCO>>VI CDOKlo 80018'DPCKS RECEIVED!:I.ITR."

ENGLI i

SIZEI:

i >>>> i '

'>>ITLKI:

Llicensi'ngi SLromii ttalli,';- PSAR/F6AR Alndts" 8 Reilrslted>> Cbirr espopde'nce' NOiTESB RECIIPCKNITI IDI GOOKY>>VA>>XEI

>>VR 8'/DLv'ROLI iVRR'B3>> LAI COPrl KS'ITITR'NCLI ii 0,

1>>

0 RKCCPCENiTI IOI COOK/IVAiIEI ARRl LB3>> BCI I>>>>'AOA>>98'I g Pr 01>>

COPiIKS'ITITR. ENCLI 1>>

OI 1>>

1 I>>V>>TER>>VALI'LO'/H06'1i IK>>/DKPKR/EPBr 36',

I EVOEQAVQABI 22 IVRR/DK'/GKBr 1L r

>>VRR'/DK>>/KQBl 13>>

NRR/DK'/HGKBi 30; IVRR'/DK>>/>>>>IITKBr 17r NRR/OK/SGKBI 25i VRR/DHF6'/LQSI 32:

>>VRR/08II/AKBI 25 NRR/DSC/CPBi 1D, iVRR/DSC/ ICBBI 1 b NRR'/DBC/P6Br 19 NRR'/08C/RSBr 23>>

RGiV2:

EXTKRNALI: ACRS 4'1>>

0618</086

( AI>>IOITi8'):

LPOR'3>>

NS ICI 05i li 3>>ii ir 2:

lr'r 2;

1>>'>>

1>>

lr 3>>

6 lr irii 0

1>>

2.

1>>

1>>

2.ir 1>>

1>>

1 1>>

1>>

3>>

6 1>>

1>>

ir IKI FCI.KI IKVDKPKR'/IRSi 35i

>>VRR/OE</AK'ASI'RR/DK</EHEBi IVRR/DKVGB>>'8'RR'/DE>>/MEBr 18'RR/DKi/SABi2Q!

NRR/DHF6/Hr EB40 VRR/DLVSSPSr NRR/DSI/ASBi

>>VRR/08 I/G3 BI 09,

>>VRR/DSI/~IEITBI 12:

>>VRR'/

RABl 22:

Lr FCL 04!

I I/RCSr B>>VLI(A>>4lDITSi ONLIY)

~

FEI>>l'Ai RKPr DIIVI 39 iVRCI POR:

02:

VITALS'>>

1 1>>

OI 1>>

1 2:

2'

~

ii 1

1>>

1 1>>

OI 1>>

1 1>>

1 1>>

1 1>>

1 1>>

1 1>>

OI ii 1

ii 1

1>>

1 1

TOITALI NURSER: 0>>r CDPKKB RKBVTRKD,;.

LITITR, Bri ENCLI 47

0 it t

II k M

l <<Pt II II

~,

k It iJ'it i.

bi H fik

~ )

O M,

'l i,,l tl

<< t.

f(

I I t'IV I

't 'I):

fi 'il 3 filtt

'll I I'k

,I)

M { t';,IJ I

'HMH g,tit j

g I.

i l )I IH

'I H<<

II k I('

t, M'

)ti i

k I

JI Jit Jj JI, h, I

JH Vt I Vki I

Jt t

r JH k

I f)t I

J,

• j r

)

II r

~ re

CXQE, Carolina Power & Light Company MAY 18 1S83 SERIAL:

LAP-83-175 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT UNIT NOS.

1 AND 2 DOCKET NOS.

50-400 AND 50-401 DRAFT SAFETY EVALUATION REPORT RESPONSES MATERIALS ENGINEERING BRANCH

Dear Mr. Denton:

Carolina Power 5 Light Company (CPKL) hereby transmits one original and forty copies of the responses to the Shearon Harris Nuclear Power Plant Draft Safety Evaluation Report (DSER)

CPAL Open Item Nos.

32 and 33.

Carolina Power 4 Light Company will be providing responses to other Open Items in the DSER shortly.

Yours very truly, PS/cfr (6845PSA)

Attachment M. A. McDuffie Senior Vice President Engineering

& Construction Cct Mr. N. Prasad Kadambi (NRC)

Mr. G. F. Maxwell (NRC-SHNPP)

Mr. J.

P. O'Reilly (NRC-RII)

Mr. Barry J. Elliot (NRC-MTEB)

Mr. Travis Payne (KUDZU)

Mr. Daniel F.

Read (CHANGE/ELP)

Chapel Hill Public Library Wake County Public Library Mr. Wells Eddleman Dr. Phyllis Lotchin Mr. John D. Runkle Dr. Richard D. Wilson Mr. G.

O. Bright (ASLB)

Dr. J.

H. Carpenter (ASLB)

Mr. J. L. Kelley (ASLB) 8305200384 830Sf8 PDR ADOCK 05000400 E

PDR 411 Fayetteville Street o P. O. Box 1551

~ Raleigh, N. C. 27602

1 v(,

>> qi

(

y g~

, i)y(

vi

~

~

< 1~6;)

sruti

~

~

s t<<v~

<)0>> I I t\\

+~

~

l r>

'c:..f".'clef" r

i

~,r i

0

~

~

~ f g

(I f

'a

.1< i,'IA u'll ) fi. og i~~Oi I i~

<<tr wc+ ~ 'f I i i (If(

SHEARON HARRIS NUCLEAR POWER PLANT DRAFT SAFETY EVALUATION REPORT (DSER) 0 en Item 32 (DSER Sections 4.2.1.

1 and 4.2.3.

1 a es 4-4 4-16 and 4-28)

Resolve the use of irradiation-strengthened Zircaloy yield strengths.

~Res ense The fact that credit is taken for irradiation strengthening for the Zircaloy clad yield strength was documented as part of the WCAP-9500, "Reference Core Report 17x17 Optimized Fuel Assembly," and acknowledged in the NRC's Safety Evaluation dated May 1981 (page 7).

In support of this Westinghouse provided supplementary information to the staff<") that demonstrated excellent agreement between experimental

data, BMI-NUREG-1948, and the best estimate curves described in the equation in the Westinghouse Materials Design Manual, WCAP-9179, Rev.

1.

(1)Letter from E. P.

Rahe to C. 0. Thomas, NS-EPR-2687, dated November 30, 1982.

Ta',5 i

$f lfPA gh i

'I'H t p~p

) 'gepqr ~g rp r ~

~~

'I P<t f

)

+ Call I'PN C

A If Q;Q p

4 M',

l t

0 0

r

=: Pi'

SHEARON HARRIS NUCLEAR POWER PLANT DRAFT SAFETY EVALUATIONREPORT (DSER) 0 en Item 33 (DSER Section 4.2.3.2 a es 4-21 4-22 and 4-29)

Confirm that the predicted cladding collapse time exceeds the expected lifetime of the fuel.

Response

The Shearon Harris fuel is designed and operated go that clad flattening vill not occur as predicted by the Westinghouse model.~

The predicted cladding collapse time for the fuel is )40 000 EFPH.

The expected lifetime of the fuel is (40 000 EFPH.

George, R.

Ae F et. ale F "Revised Clad Flattening Model", WCAP-8381, July 1974.