.- .- - - _ - - - -- - - - . . . . ~ - _ - . .- . - _.. - -

t

GENER AL h ELECTRIC" * ' * " ' " ' " "

.,

E N GIN E ERING1

GENERAL ELECTRIC COMPANY,175 CURTNER AVE., SAN JOSE, CAltFORNIA 95125 D1ViSiCN i

!

~ Durter 10, 1979

Mr. Fdward L. Halran, DirectcrDivisicn of Cbntracts 1

.

|U.S. No:1 car R43ulatory ChnissicnWashir,3 ton, D.C. 20555

l

Dr. C. W. Sullivan ,

EPRI PM3 firter, BG-BD/ECC Program i'

Safety & 7malysis D?partrentElectric Pcw3r Tc.scarch Institute ,

'

P.O. BDx 14012Palo Alto, CA 94304

SUBTiL7: BG B1DCOd/ECC PT<GPJ41CQt#1CI 10. NTC-04-76-215l?POPFAL MJmHLY PICGR1SS RrPORT POR !)RrMRER 1979

Gentimen:

Tne following srrwrizes the subjcet ratter covercd in the attachedreport:

,

Planning for tJe small break test mntinued including thercea rerdation for aSditico of a second test. The blow.3xn systan,including a dircet neasurment of the blow 33n ficw, has Irendesigncd and installed. Other prc9aration for s"all break tests'

included installation of an auttratic depressorization system1

| simulation and truification of the Icw pressure ecciant injectionsysten. Several tests were conducted including shaktdan tests,

j tJe rest severe large break test, ard a series of loi3cff testsrcsp3sta3 l>y EPRI.i

'| Distribation of this report is Leing rase in accordance with the "hbothlyDistribatico List" provide 5 with W. D. Reiner's letter of Septafer 6,1979,

i

'h y truly yours,

f Is.) ,a<*i WG. W. Butpet.te, I'anagerExternal ProjramsM/C 583, Telephone (408) 925-5375

cc: R3 Rck {

D: +- . ._ R 0 01080 /'

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||

1

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BWR BD/ECC PROGRAM

F0RTY-NINTH MONTHLY REPORT

NOVEMBER 1979

Prepued for:

Division of Tej,ctor Eafety FenrchU.S. !bclear Fapiatory Cc: r.issionthshbigton, D' 20555!aC FE !b. B3014

EM

EIwtric Foser Femarch Inst itute3412 FillvdW At/cmrFalo Alto, CA 94304EPhI Project ?b. FI-495-1

and

Ce eral Electric C.:( e y

175 Curtner AvenueSa Jose, CA 95125

Bf

G?neral FINt ric C:rgny

90010534w er

Contract !b. NLC-04-76-215.

&

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l1

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BWR BD/ECC PROGRAM.

FORTY-NINTH MONTHLY REPORT

NOVEMBER 1979

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_S'RGRY

Planning for the smil break test ecntinuM includire the reco condation foraddition of a seaard test. Tw b1cwSan systre, ircluding a direct rmsarcrent ofthe blowkwn flow, lus han designcd ard insta11cd. Oth3r preparation for mallbrcak tests inclu&d installaticn of an autoratic depressurization systrr sirula-tion a73 rcdification of the low pressure ecolant injcetion systcn. S2veral testsware coMactr-d including shake 3cwn tests, the rost severe large break test, and areries of boiloff tests rcqaesteS by EPRI.

TASK AA - PR G;AM PIRNI?G AND ADMINISTPATIQ;

In conjunction with the Annual Water Reactor Safety M39 ting, a roeting wasInid to review the status of p]anning ard preparation fo- an upxming mall bmakscopire test. Subse: pent discussions have defincd an v3diticr.a1 s"all break secping |

test for the test ratrix. We aSSitional test provides a nore reprerantative (less)swere) B'.G transicnt than was planncd for the original facility scapire test (withckgradaS ccrditicos) . Since this test wauld b3 ruch less difficult to cm: cute,

it could prcvide a valuable srall break learning exparience for the ergineers ard testoperators.

I

Break area kould be seltered such that the High Presum CDre Spray (HPCS)sy:. tem flow at rated coMitions will slightly exmM th? larcak ficw rate. We !

twcr-pPase Iwel in the TLTA is exprta5 to drop initia31y ard then gra5us]1y re- |cover after the IP3 injcetion b: yins. Brdie uvavary is rot capxtcd; whercas,bnile uncovery is rapxteS during the degradM corditico test Goring which theHPCS systc= will b3 inactivatcd. A mwting will b3 held with prcgram sp3nsorscarly in Dvder to dis =ss and seek P'43 core crence with the additional test.

Tb noet an NFC433 rWuir wat, pre-test predictions are piarcwd by GeneralElcetric for both tests; hwer, the prMiction activity will b3 ca pleted oat-side the BD/ Err Prcgram.

A direct mmarcmnt of t]w blowSan ficu rate is planned. Un very smilflow rates rake it passible to candense tha vapar ca panent using a series ofheat exchrgers downstrce of the limiting orificw3. A calibrated orifice is thenusa 5 to reasure the single phase liq]id flow.

TASK CC - TEST FACILITY PPD?JATIQ;

Hardware was insta11cd to sinulate the Autreatic Deressuri7ation Systen (nAS)as indicatcd in Figum 1. Sirulatico is achieva3 through use of an orifice andcpickening valve installed in sc-ri,-s in the TLTA stczn line. ADS is activatedlong after cosmtion of norm 1 ste-cr< line flow, so the TLTA stca n line serves a jdaal purrose. Tne ADS will b2 us45 for th2 sccond scall break test, and has rot

yet lxen eJwekcd out.90010335

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BD/hCC Forthy-Ninth Manthly Te; ortIbverbar 1979-

Page 2.

TA9K CC - TnST _FA_C1 LITY _PPPP_AMTION (cont. ). _ ._

We TLG 1rx Prr sure Coolant Injection (IECI) systm and characteristicswere vedificd fren a single prp sinulatice to tw prp simulation. TwoIPCI prps will te si ulated daring th2 sc,x>rd srall bmak test. We IPCI-

syste" plays an irrortant mle follcwing ADS activaticn..

%e srall bmak b1ca3xn line and auxrpanying ncesurcrent systcn weredesigncd and installed. %e small break bicrajown systm is sh wn schraticallyin Figtwe 2.

TASK FF - T_LTA TMSTING_

Several types of tests w2re ccrducted during the nonth inclu3ing one natrixtest, a series of constant pressare boiloff tests and scre shakedwn tests in fpreparaticn for the upcming mall break tests. Le peak brdle pur, low ECCflow, high ECC fluid tcxterature test was cceplated. Danstant pressure loilofftests w3re co-ductc4 at 1,030 psi with Lundle pasar levels of 500, 350 ard 250 KW.A series of shakeSNn tests was startcd to evalmte systcIn Icakage, heat loss andto develop crerating tcchniques. 1

l

!

-.A..S_F. GG - A'& LYSIST. - - - -

Analytical effort was prcuidcd in support of planning the TLG srall break ,

test. Le effort was dircetcd tcward achieving those phe-ncrena which are signi- |ficant in the rall break scerario to b2 as representative of tin R;R as possible,consistent with the reny TLTA s~aling oxprcnises. The bailoff test results w2rerevierd briefly. L2 test tedmigae aipears to to adegaate ard furtler tests atIcwar brale powr Icvels will be conductcd later (in the autaatic pressure contmlrcde) af ter repairs are rase to tle pressure contal valve.

A cursory review of th> plak pmr rat rix test in3icates tMt the test wassaccessful . Peak cladding tcrgeraturcs were telcw 1,000*F throwjhout the test

Ip3ricd of about 500 secards aven under these very severe corditicos.|

b0 .M vG. W. B.mnette, Mr.agerExternal PNgrams

(KC

At tch:ents

90010336

1

. .__-__ ___, . . .

|-

*0

F]GURE 1

.

Tt.TA Sicam Line

SV ALL ARE A LeoviD BRE Ak CONFIGUR ATION

|

|

.

PHE SSJRE CONTROLVALVEr- 1li

. . . . -

_

'N

~ ---- --~-- ~ ~ - - - - - | | -- - - -+= CTLTA

y .os vALvc,,s,,,, s~~~.<_,,m

90010.537

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.

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D**D *]D 3'A

o o J\ o ju_ A 3 a.

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- secsg, 4 iLA r. t s.P TANC

A A06/'.D i','C GI)t;lF KE ALT t w ATive

/ \ 12P AY INJE CTION [q - L C"*AT t ; N y?.W

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p. i). T | y.H>Cs 1iff f ffYff71YA'ne M( ggjg [j f

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PM^', , (- pf % { ,,,

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1111fff 27 TYT1YT? 9 L t On ATLR LINE

sL>c:nw us e :

surratssi;8 h et r i t :^'AT em . ITANK j pgur

,-

,

r$46 A T # 0 w VA yes

-GM{ - .-%W-

_c _. _ p. y_w -.. . - _

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y . , -

LCCP 2 7 J (c,y 1-

I !N _f_u.r_ 4 N c-e-

-- ,,

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f. _ _

-n w a . _.-n.,re- - _-- _

_ _ _ _

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l

mew NwD C[OWASSFt.%. RATA.

.

' FIGURE 2 TVJ LD3P TEST APPAPATUS CONF]GU ATION S A ||

(TLTA-EQ WITH EMER3ENCY CORE C00i.ING SYSTEMS.

| 90010338|

|

| Small Break Blowdown Line (Outlined)

. ._ .. _ ..

. ... . . . -. . . - - - . - . . .

.. ... _

,

.

INTERIM REPORT

Accession No.

Contract Program or Project Title: MBlMmMJ

Subject of this Document: Prcgrcun Progress

Monthly IctterType of Document:

Author (s): G. W. hetM

Date of Document: Decenber 10, 1979

Responsible NRC Individual and NRC Office or Division: W. D. Bec)cner

.

.

This document was prepared primarily for preliminary or internal use. It has notreceived full review and approval. Since there may be substantive changes, thisdocument should not be considered final,

i

!

90010539Prepared for

U.S. Nuclear Regulatory Commission'Nashington, D.C. 20555

INTERIM REPORT

,

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