ML20085A419

Submits Monthly Progress Rept for Dec 1978

ML20085A419
Person / Time
Site:	Crane
Issue date:	01/03/1979
From:	Karrasch B BABCOCK & WILCOX CO.
To:	Womack E BABCOCK & WILCOX CO.
References
TASK-11, TASK-GB GPU-0379, GPU-379, NUDOCS 8307060474
Download: ML20085A419 (4)

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THE BA8 COCK & WILC01 COMPANY Es Davis Ar Mesride t

POWER GENE!!ATicu GROUP EF Dowling K Schroeder

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[E Jamessy 3. 1979 l

n-- h, 1978 Frogrees Espect i

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A. The and of' the year commitments os the 30F Criteria Project and N

the Compemenc Imeding Saar484*=tises have both been met.

• EGE Pseject eilastaes events were all met, with one enception,

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and several aos deciseasts were added to the list and completed h Component faadi=f Specifie=ri -

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during the tourse el the year.

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enemitment of 903 es-time completion was==*==ded and close to.100E.

p Detailed' status reports on both of these Flaat Desias projects will be issued the first week, in fa===ry.

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m F1anc Design commitment to Phaea E of the Standar=M==*4a=

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Psossam was* completed as scheduled. All tszt sectio.as and drawings j

for the Beestor Coolant System Esquirements were isoned as scheduled

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1 M1=dier resolution of c-*=

by the affected hardware units.

w la addition, the standard AIES document has alae been i===ad g

p following negotiation of the data with all input suppliers and o

the Stu Unit. All Component Imading Specifications and Peactiemal L

Specifications have bees issued and comments resolved from We now have a ocuplace g

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ra=F-===e ragi--ins and Mt. Vernos.

packasm of Flaat Design requirements for all IDE components

't ime1= dad in the Phase I Fireese Program In addities, the l

Phase II and III mah d=w for r=1==== of Plant Design Esquir-*=

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Specifications remais on schedale.

We are now in the process, on these systems, of associating and resolving comments on the Systen p

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p Esquirements Specifications 1.adtny upI to freezing of this documee-t a

tatien la early 1979. The Phase IV Analysis Freese effort is h

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l w=t behind ach==h.te due to higher priority work at the end P

The,overall program plaa and list of the calculations 4

I of the year.

to be inetudad la the Phase IV Freese has been issued and this I

program will now get underway. We are targeting to obtain a definition of.wht4 cale packages can be frossa.by 3/31/79.

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A number of meetings between the Nuclear Industry and the NEC C.

have culataated in a modified NBC ATWS position. The major points of the new NBC positica ares 1b 1

CONFIDENTIAL 1

ex.[ 9 L fN F rorio COUNSEL ONLY Dews i *

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gatranch to Womack 3ecember,1978 Progress Espect January 3. 1979 W

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'I Operating plaats and plaats is as advanced stage of constructima g,

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Up2Sg) will only be required to add divere.4 scras a.

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instrummetation and demanecrate. critical valve ope.sability.

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F-i 2 Plaats set nearias comunercial operation will be required to e

l' insta11 additional safety valves.

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1km details of this pes'ition, giveer la a supplomst ter EUREG=O460 g""

i-asa espected to be received befera the January 4 ACES Esaring.

l' Eowever. based on th.a infor nation received to date, a significanc J

essent of design werk will be required durias 1979. A dermif ad k_

• statue, soport on ATHg reaef aria = will be publiebed the first week L.-

ef.Jamsary.

L, A,reviN of the FHttand' CM design requirements wee performed to F

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evaluate potential c6anges to. facilitate the hardware /sof tuare.

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In December. CI/A's were processed on the RFS-II CM E/s y

wi-tm tot 2, Relar. the time reopease requireenst* to avoid. a software vl.

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c.y Define, the two Cr flux inputa sa being idestical in order' y

2L to shorten the q=af ff',1 cation testing time.

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36 nad'f aa the fraat vatum used to bypese the offset calculation as

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$ rather than $. to avotA a sore divide sie==riam if the two (J. ;

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inputs. are not identical.

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la seppert or the rer, work,has been deem to more fully define

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limits se theattest in the DNBg trip that are more compatible

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d with hardware -rpm ty. A CI/A will be processed by Jainsary 5.1979 l

ten implement the added coestraine.

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l L That final meeting of the Mark C Desiga Eeview Beard was held this t.f aseth to review the generic applicability of the Mark C core p"

< i components previonely approved for release on TVA. The DRB r.

agreed to approve the design for generic application upon satie-

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factory completion of the outstanding actica items. The final r*

C-DES report.is escreetly scheduled for submittal to the Department P

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Maanger for signature by March 1.1979.

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F Am. Engineering Department cammitment to the %eimar-Parts Center E'

was established to prepare a mastee list of safety related comycaests-L and pisca parts and to. define functional componente for all eq=i.-

E oe B&ts backlog contracts. The workscope was divided into three separata phases, and==ahaur estimates wxra received for each

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phase from Mechanical Equipment. Fumps ac.1 Drives. T1uid systems and C&L Systems. We now have a firm commitment in place to assist ther Nuclear Parts Center in decernining functional component

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classification across all the backbg contracts.-

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3 Ehrrasch to wonack Vase Three December,1978 Progress Esport January 3, 1979 i

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II. DIerva m um 0F pagvt0US PROBLEME A deal seapoint for control of AEW and design improvements.

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I to f aef =de cavitattag venturis and automatic piggyback. for the 4

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EFL system bave been identified as alternatives to casolve the

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205 Sma11 Areak Froblem.. Design,. equip===e fabricatios, testing

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ans *==*=1?=*4a= cesto actoss the 205 Fuedesc line ara now beins f OiS 6

' for both design alternatives to mehi-ve a decision

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enrir in 1977 for the overall program resolution. A cost impact

. picture-is presently anticipated to be complete by 3/01/79.

addief===1 maalvsis for a $13 with a forty toot Afu level and a

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.j-senLL LOCA with the improved EFI system performance are alas to,

be completes aos documenteg 7andf ng to a final decistoa on '

~ resolution of this problem by 3/31/79.

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3. h r=ria= d both ana1 M W tese data b h pr W ed see amheittes to TECe to support the ingeria and long-tern APW

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control system' design. Flaat opesattom uma evaluated and abows to-

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be acceptable during normal reactor trip events smA ether antici-paced tramaisets such as the Ises of offsite power and the Issor af. amin feeduster with 025G 1evels controlled at a 35" level.

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Ie W itian. the seeseguences reesiting from the operator',5

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failure to control stasm sseerator levels at 35 inches, in the ine== 4=, has alas been evaluated and shows to be acceptable.

l Addir4amal questions have also been received from m. primarily U

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inn the small. break area. Ifforte will be initiated to prepare

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~l r==p---- prior to February 13 to support e TEco -ir===e to.

supply a pt:41am summary report to the NBC.

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Small10CA for the 177FL plantar have always been evaluated assuming

's 2ssa of offsite peuer. This assumption results.ia am EC pump coastdoue, a Imes of main feeduster, and reif==ee on auxiliary feedustar. The validity of the assumption to produce the nose IJaiting 10CA consequeences (small breek) is now being evalustad.

SmalI IACA smalysis are now p1mma*4 on the 205FA Plant M the RC pumps are operative, mata feeduster is model ---

'a-l g available. and the ICS funeetana to maintata OTSG 1evels at the

. two-foot elevaties. If these analysis de not produce acceptable

j and, less conservative resulta than those sosuming, a 1mes of offsiter power, a potential will asist for entensive reanalysis efforts iar the small break area. Equipment design'shanges on the backlog 177FA plaats may also be required to assure that AFU is addei to the steam generators during poet LOCA conditions. This

' l problem is currently being evaluated by ICCS Analysis.

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Earrasch to 13emeek Page Tour n., my lgyg progress Esport Jammary 3, 1979 1

• i 17. AVAILABILIIT PROGRAM P

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A. asvised humilability Improvement Program for Eish Chloridae.

is the EC5 received R&B Maangement approval and===ha='e allocatios.

The set 11ae for this revised program is as follovet

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,,~.1., Esmitar the chloride problem ascing any asw trends' and ' develop

- f-under=en= Mag for these trends.

2.

Eeview data and infohei-available withia NPGD from demiseral-i

.iser resia amenfacturecappertisant utilities and B&W residenc

==gf===== to gain better probles definitime and develop possibia I

effective problem solutines, including the (ollousas specific

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s' a.. pessible relacionships between domineralizar resia loading f

i aos see tendency for chloride spiking occurrenses.

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b. Chesdaat faternetimes.ihich promote chloride spiking.

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.. s Psoblem status ama coa-1=i-as viewed by d==t aralizar i

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resia. amanfacturers'..

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d. Utility corrective astimes em this problem and effectivenese j

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.3. Develop a finar rayose by April iv 1979 based, os above activities,

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addressias the followings i

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Prob 1me daH=ition.

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to alleviate the problem.

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e. Definitive criteria sa 'resia bed changeout.

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Besemmended further activity on the problem,, if any.

M th Prev 1 N Honth Cum LCD 143 for

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