ML18127B143

Forwards Seismic Analysis of Containment Fan Cooler Units

ML18127B143
Person / Time
Site:	Saint Lucie
Issue date:	08/30/1976
From:	Robert E. Uhrig Florida Power & Light Co
To:	Ziemann D Office of Nuclear Reactor Regulation
References
Download: ML18127B143 (26)

Text

NRC FORM 196 I2-78)

U.S. NUCLEAR REGULATORVCOMMI~

NRC DISTRIBuTION LLDR PART 50 DOCKET MATERIAL DOCKET NIJMQE R 50-335 TO;

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ZIEMANN FROM: FLORDIA PWR

& LIGHT CO.

R.E.

UHRIG MIAMI, FLORDIA FILE NUMBER DATE OF DOCUMENT 10-30-76 DATE RECEIVED 10-29-76 QLETTER SORIGINAL C3COPV CINOTORJZEO SUNCLASSIFIED PROP INPUT FORM NUMBER OF COPIES RECEIVED DESCRIPTION TR. RE. THEIR 6-30-76 LTR...,..TRANS THE FOLLOWI ENCLOSURE G

SEISMIC ANALYSIS OF CON'fAINMENT FAN COOLER, UNITS ~

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(

1 SIGNED CY. RECEIVED)

( 21 PAGES)

ACKNO~@Z)g@D i PLANT NAME:

ST. LUCIE //

1 SAFETY ASSIGNED AD:

BRANCH CHIEF:

PROJECT

>fANAGER:

LIC~ ASST DIGGS FOR ACTION/INFORMATION ASSTI:fJED AD.

PRO NA

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B 11-3-76 8 FIL NRC PDR INTERNALOISTRI BUTION SYSTEMS SAFETY HEINEMAN SITE A

ENV 0

N I & E 2

OELD GOSSICK & STAFF MIPC CASE HANAUER E

SCHROEDER ENGINEERING, MACCARRY KNIGHT SIHWEIL PAWLICKI BENAROYA IPPOLITO KRKW 0 OPERAT N

REACTO S

PROJECT MANA EhIEN BOYD P

COLLINS HOUSTON PETERSON MELTZ ifELTEMES, SKOVHOLT LPDR: FT.

PIERCE TIC:

BASIC.

ASL~B' NRC FORM 108 {2 78)

REACTOR SAFEffY ROSS NOVAK ROSZTOCZY CHECK AT&I SALTZMAN RUTBI'.RG EXTFRNn I OISTnIBUTION NAT LAB:

REGS VIE LA PDR CONSULTANTS TO ACRS CAT OPERA N

EISENH SHAO BAER BUTLER R MES BROOKffA ULRIKSON ORNL CONTROL NUMBER 10903

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OX 013100, MIAMI, FL 33101 i~V 6'LORIDA POWER & LIGHTCOMPANY 1I 5eclhe OeeEe> Clek August 30, 1976 L-,76-31 Office of Nuclear Reactor Regulation

'ttn:

Dennis L. Ziemann, Chief Operating Reactors Branch N2 Division of Operating Reactors U. S. Nuclear Regulatory Commission Washington, D. C.

20555

Dear Mr. niemann:

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Re:

St. Lucie Unit No.

1 (Docket No. 50-335)

Seismic Anal sis of Containment Fan Cooler Units Enclosed herewith is the document entitled "Seismic Analysis Report of the St. Lucie Unit 1 Fan Coolers."

This document supplies information regarding the analytical techniques which were employed in the seismic analysis of the contain-ment fan cooler units at St. Lucie Unit No. l.

We are submitting this information in accordance with our commitment made in my letter of June 30, 1976 (L-76-243) and referred to in the Staff's Safety Analysis supporting Amend-ment No.

6 to the St. Lucie Unit 1 Operating License.

Very truly yours, Robert E. Uhrig Vice President.

REU/NR/hlc Attachment cc:

Norman C. Moseley, Region XX Jack R.

Newman, Esq.

e PEOPLE... SERVING PEOPLE

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DATE TlME; P,EC'li&':

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'tructure) 7pchiill0gg V~esgknghovse Efactetc Ca~ot'ation August t976

BURE

.6 ScJlcl!8ttc RGpwst".AtoHQA Qf tJ'l8 Pari General.AssemMy Rom

Response

Sp~ctra far Yarhjcal 0]F&C'L'~Pl ggE ~yg 0 s~g GB1Ap'Ing Floor Response Spot;%ra'or Ye&fcal Qfrect;]0@>

@BE and 1C Damping f>abr Response Speci.re for Horizontal 9<rNt]en> QBK md 1'j Dlorp1ng " Kiev. 60

- 'F)4~0<'e~pons".,

Speccwa f'r HoHzvntel UfmeMon68K e>~d 0 6% Damping - Kiev. 60 f'~0M'5j>OM8 Sp&Ct'vh fQY'QY'1zoIABl Dkmcclon, OBj AAl1 9.5N Pawpfng - Oav.

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s4CTION 7

IHTPONlCTI08

'"44's'fs w@s perfo~4 40 Mcl"~fg Cl~ strgcfUM) )n(Gql"ltd 404 opcNbtl)cg Of'he St, Lucre - Unft 7 reactor conta$ nment fan cao'los+>

w~hen sub$ er.'t~A to se<sv$ c lo<<ds I

It was found fry~ the sefsm/c en@)ys$ s that the reactor centa<nm nt fan coo)qrs conform ta the St,.

huc3s - Unky 1

seiom<r, cr$ ter$ e~

Prllented fn AM@ docvr@nt we the results fv0c the se38mtc analysts 4eranstvatfng th0 89fSmfc structumT adaqMCCy And op raMlfty 0f'he St. l,vCfe-Unht 7 f<n eQOTers Also, given

<0 0 df cussfan Of ghe anelytfza.'l m.thods avyToged~

e deseetpC>ori: 0f the Input used, and e dhsevfpHon Of the fan cogent s4a~etuVek System.

T"< 9enere>

ess@ublh'"<9

~ >SchePQt'fc O'Ag,) ct)n )g4 of'n 085eRL)]y, tM&f.or

base, end heat exchenget's'senbly, The miami )s mounted on top of motor heat o

exchanger as,squab'fy sh$ r;h 3s baal ted td fan assembly, The eo!np'l~>te e~sembly' fs welded to the f'IMl'auAdeUon, The spacff/e, deaf;a<l<

a("0 dian>ssed bolos,,

the fan assemb'lg qqnsksts of vAt0v 85aeab)y, hous)ng aa~emblv, beyHng base~,

inlet, spherical roHGr bee~tngs, Anl inlet flange ruing, Housfn<} ~s,se(ably mode ot <..)der steel plates

<nd cona<ets of s)de sheets end scroll.

'fbi r'otor consists of cent>'<fogy> h3H'oH'bladed aha l assembly and the shaft, The wheel ossamh7y fs presseL an the EeP.end

$ s also retained on the shaf't by'oto 3(4-30 sof', eeeewsi The tphet'Ical reklev beer fngs ere taunted orL V>e rotor assembly and bolted t0 the tearfng heae eseer4)y',

The rotor ass,ebb'ly

)s connected to the motor N$th a fkexfbke coVpHhg<<

Th heaving base fs febrfcated using u.lAd steel eonFereegerr.

The Inlet $ s a$ etl ee'fded'teel construct'ion and ts used to gvjde ale

$Ate the >Week 6'ssek$ y, The vota> hose <s.ot a3) m7del eoostmeHon and CGNpor@onted so tb0t hat air 4 b<0<v over. the heat exchanger end rater'n~d to cool i'alar t~hfch

r~&ntfng Aa;aa

$ns<<4 the rotor bess.

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RECTA)H 8 N8f YTkCAL >KtH99$ AND CRklEArA A<<4e>et'<6e"

~n the praviovS serMon, they@ fs na

$ntaract$ w between the f'eA end @~toe stows of the fan can>ei" stt"vctut~ bee>Use each vector has ibS Ows fkxad Haring and'I@ sh4fts ata coaaectef through c> flex/hie

ccupNne, Based oq.Ches feel, Ch. fan end motor M~r~ 'indqpendeqQy snblyped bdaAngs fox the &eetot'on&$wenc f46 cool'm

@am Used to 6etenv$ ne 44>. genera) assmBy, NL"nylons,, and p~cperQes 0& eeepwents.

fthm@ StVQQCVLO Wit 4@49)64 48 Sph'fng N5SC SgstPAS and the Ahtgr'g fr6$0&n~."fag wve ee~vte4 td deb."nafne who behavior Qf the ep".,:ponents duHng seismic QxC]tent'fGFt.

Ac c~k@fnC4 3A 880ttcn 4, t4 Qcpktftc@t'(on 1~'.v&1,$ 5F6 46tel'O'In&d based on, <he fleer wsp~se spectra,

$t ups deII;.,nntged that thG fwquqnc/qs essuehate4 trkt4 the f~<<vrator system knrlu@ng eel'fs and ~;oft banks have f+)gpyya $pj

)fan f(gal p~$ pg plP ygp, g~$ $+fn~+ gclh~

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Stwssas a)>C 66>3'WCBes-mW'e-Nulahe4'uskn9 elastic eel'ation< for the wttt

~ewi.'. inat~en. e0 ey~sat<ng

'toads, h0~<sdntal se/size (ME], i(er t)ca7 eyfsmte (DBF), end acc<4mC pressure>

(ee$ $ s and eye't bw>klan, L'tN'fC v4ttkss U$54 4 p8 fA. occgt46ncQ @th ttM 8148ttr. pr0vfgfcns fn P4r't, 7

(fan F00'lm et~tu~eE Ce.-~oheatj)ALSO-69 and ONE Sec. AU, Pmssvt'e vessels Spacif)eetions (ee)) tuba and If'stertor't),

No anely+3s was nde f'r tt>e G8E sing fC v~s shme 4f@>t the DBE airless

'levels, are althing> 0N clast/e,

)frbktS, AR '685AM fA &0 Cf N8Ha c4CLWhts abON,

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gpj",@f'f(QI'6i');:fg5g5)joe dug'tqg sy$ 5mkc ivenb t'ai Iiitui'ed ai'ter ks'KbHehiiig

., tlat) gj8'5/+'S5'b'$ "$Q"Ih't!6A Qlh~H'0 HPii't0 ki1lf illicit titC dpiIQGi'iOAS AYP 'IllflitCd old Mf)l ~ee$ n qkthkn ok>evabte values of'he apemttny c1eeronces I

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SKYION INPUT DESCPIPTIOg Yhc sef$ r fc dcsfgo va'tush used fn th< c~lrglgtfang parL~ Dbthtjt~id /tarn 'thy' lac~ respon"e spectre foc1vded Tn the EWSCp sparest'<r.at<a>>

cant:1g)geng An coofedS Koi FLO-8770,$ 76, datpd !4y 2g, lyy1, Sqqgfan 18 fn ~f9QM> ~

EQ ~ kffe th0 f700p rqgpgnr~g spectra gyp Ogp Figures.

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~rtd 3 6~'@ vert"tc".I f)GQl" Atspgn86 Kpectl"8 tor 0.5/, gqd 'lh gqgqpg~gg dygp)ng

<<I<<~>> t."~<p<<t'<<>4"

~~gums 4 and

~ ~~a haH~aot~1 <tool response spectra fOr Q,QX and lg equfpgng g~mpfgg velum, resp4gtf~<p'tg~ at reuetar bug1gftyg elevstfon 69.

F)gushes 6 en6 7 eve hmfzon41 floov i.a<ponce spal;tr0 foe 0'.5l and 7A equfpneog d~fttg vhtu85> Yespectfvely, at meeter" bgtldfng 01evat.ion 44, Ae shaw in FigvNg 4 4o 7> the msponsa speetN$

pebks are at and above Q.M scoop

peafowl, 4ese thon or l.'gus tc 9.06 second par)ad Q3l:h 4t:tvdes

.a)1 nr.,Cut'e1 f~equacctas ca'tculatad for th(a essetk'fy,.

the re;pansy

~ppotpa1, velr~e..

0="vc converged to tt% fIMt acca7eraf.!on Va'toes, Consequently, th.,

'gseqgAy zan be eons$ dared es sighed tee Ch. floor mspans~

spectra shee fn Figures 8 to 7.

Bomvav> for the purpose af conse~ett8m,.

staffs acct)Lretkon~

of 0,6g and 0.4g for horteon541 And Vertfcal dfrectkonsvespeztfvely,.have been t".boson as the 08K kopvt ta the e+~sembly.

To o6Mcn the acxfiwm hypathetfcx1 ea<hquake (09E) values, the Nb0ve values ware tt;uktfpHed by 8, The foHaÃng 08K ar;celerztfon values t et"e vs@:

VEHTImL SEIS~ri HQRIMllTAL SE SNIC Oev. 44'lav M',2g

't. Rg The yartJea3~nd haHzont~1 ee$ @tfq Iood: vita applied.s<eAteneously to'aIIa~

f'Ot the worst pqss.)ge ~ongtfons, In audit;fan, the eo)hs mm sub)ected to a dfffaientihl presume of 2 pet to t-epr'est.nt the bIoefwA tvansfent pyeshvre d!4fer'ence.

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FIGURE 3:

F)oo'kespome Spectia far'erkjeA N~tAm, QSK and N 9appin I

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PFR I00( 5ECQND F(GVRE 5; F'taor Response Spec".ra Ae Honzonw1.Nrectite, RE and Hev. 69 l

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SECTION 9

~BEAU TS 0

The fan'motor syst6N spl"fAg coo Canis and nafurg1 feequewieg ~i e cafculatod, A

ShCÃt )n Tab'te 't, F11 enturo1 frequene.les are hbov~

80 Hz ftlcIQ'tng C4~~ Y'Cfbl" assBNbfg Nh'feb

$ 8 24.6 Hg.

Th95A fi"e<>u~nc<es are at end

@&~vs the r)0/d range of the floor reepon~e

spectra, (Ffgu&t, 3 tb 'F), f,e>> the fleer response spa<'.f;I"0 t,'converge Co She coARCBAt response value$ Qtth Le'ro ntap73fkatfon Ot and above.

20 Hz (qr Q,05 haec.),

Hecaus 6'f', neural f'~v>nc)es are tn the rept'an of zero nmpIlfkatfan the fan 600m'os(em [As 8Mfyzed using se'i$ ~~)c equfvaleot 854t~c loads.

840"fn ffl TGNQ R8 C4 c43cu1QC@f 5fld 73NIC betlav'Iov'1DAg (f/Ch thF'0ig'trl of.sCvi~tlgth fov (fffferenf,'tNde$ i 086 setsmtc toads tR;r'e used to, catty'tete the values 6 'faMe P.,

$ $nce the clast/c Iieet<~

a~roe/send wk4h 0R 08K CvcftC 'NRM FIGC oxc&Ade0 ckeo DBE s6fsNfL favell MM usod, ft,

$ g t'ibt. necesggqr t@ p@pfeN an 08K grprsW<e analysts.

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KSce PfC.mghseereif bing, ~".X. 7$HSj.

I Coepkiag Cofk Reek ehf1. Cube cab (ohmage Coil. Beak conj tabs amesa:

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'loads ce'(lad foe fn the spec)flcbt'50fLS, ThG RbQVh Mk7$ Y+Qih<A. 6$584tt'qdqd SpeC)Red riQXIW4 >04"8 The der)gt'l ttlQt"Offal"4,

$ 8 ACSQU@t6i Th8&fqr8, th8 St, LMGfe Ul'lit t l"C@C'tOt-'dntafnment, f4n cou1el se'fmlfC <<Chwtvtal fotegr$ i~~ and OpOeebtlfty 448 been dune>ski'ahead A Al Q4 44& Mrs EUCIB U~'lC Q 3

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