ML19250E652

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Forwards Request for Addl Info Re Topical Rept BAW-10141(P), Taco 2,Fuel Pin Performance Analysis to Complete Review. Requests Planned Submittal Date,To Allow for Development of Review Schedule
ML19250E652
Person / Time
Issue date: 03/11/1981
From: Tedesco R
Office of Nuclear Reactor Regulation
To: Taylor J
BABCOCK & WILCOX CO.
Shared Package
ML19250E653 List:
References
NUDOCS 8103270211
Download: ML19250E652 (6)
v • d • e


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pn' THis DOCUMEtlT C0t4TAl!1S Mr. J. H. Taylor, Manager Licensing POOR QUAUTY PAGES Babcock & Wilcox P. O. Box 1260 Lynchburg, Virginia 24502

Dear Mr. Taylor:

SU3 JECT: REQUEST NUMBER 1 FOR ADDITIONAL INFORMATION ON BAW-10141(P)

We are currently reviewino Babcock and Wilcox licensing topical report number BAW-10141, entitle J " TACO 2 - Fuel Pin Perfomance Analysis".

% initial reviews reveal the need for the additional infomation indicated in the enclosure.

This information is necessary tn complete the review - its expeditious submittal will therefore be to Dabcock and Wilcox advantage. Please advise us of your planned submittal date so that we can, in turn, develop the review schedule.

Sincerely, gy,n n.!_L51 C "i:

Original signed by Rotvert L Tedesco Robert L. Tedasco, Assistant Director for Licensing Division of Licensing cc: Mr. R. B. Borsum Babcock & Wilcox Suite 420

'ISTRIBUTION:

s 7735 Old Georgetown Road Docket Files Bethesda, Maryland 20014 SSPB Rdg.

JBerggren

Enclosure:

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w Mr. J. H. Taylor, Manager Licensing Eabcock & Wilcox P. O. Box 1260 Lynchbarg, Virginia 24502

Dear Mr. Taylor:

SU3 JECT:

REQUEST NUMBER 1 FOR ADDITIONAL INFORMATICN ON BAW-10141(P)

We are currently reviewing Babcock and Wilcox licensing topical report nu~.ber BAW-10141, entitled " TACO 2 - Fuel Pin Perferrance Analysis".

The iritial reviews reveal the need for the additional information indicated in the enclosure.

This information is necessary to complete the review - its expeditious su:~ittal will therefore be to Babcock and Wilcox advantage.

Please advise us of your planneo submittal date so that we can, in turn, develop the review schedule.

Sincerely, D]'lw /h p-N F <* ' c' %' -

Robert L. Tedesco, Assistant Director for Licensing Division of Licensing cc:

Mr. R. B. Borsum Babcock & Wilcox Suite 420 7735 Old Georgetown Road Eethesda, Maryland 20014 Erciosure:

As stated

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c.q c_\\ :.,, c. - -,;, :.. - m,s

(...

_c,1 n

1.

Application of 3;..'-10141 in Littnsing *nal., es A.

Identify the specific re;JlatCrf rec,uirc t 'tc lich.;ill be et wi *vh i.f CO-2.

'. n c l ^.~ _ v '. 4, c =. h l = t _' u- *.. 's

o. f '. n r. F : :_ n_,

4 a. c 4..=. r. a > r d

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Seview Plan, tr.d c;;ropriate Ot;;1 atc rj Gu ides.

B.

.',ere the ecgulatcry rec.uirc ant is r;t s:ecific (e.g.,10 IFP EO A p p a n d i >: A, Critericn 10), idt tify t'e sie:i'i: dcsign cr.*.eria v.hich iciil te.at s,-ith TA:0-2.

C.

Identify othar applicaticos of i 7.0-2 ach ;re included in plant safety analysis but da not U.ve an c > pli:it _ isis in :.e re;;iaticns.

D.

Nscribe any diffc rences in the.sy t'at TA:2-2 ',cill be used in cach of these 5;plicaticrs, i.e., ere t.cre ".ifGrent ccmervative opticns that,till be selected fr.r dif fErent :.;plicati:ns?

2.

Differences Eetrceen TACC-2 and Fre',icus i el Ferfc r~ance Codec A.

Identify previcus codes (and th eir functicn).hico,eill Le replaced by TACO-2 in licensing c;plicati:ns.

IndicEte.hether any s uch previous c: des will continue to be used in liccnsing applications a f te r app rc cal of E A'.!-10141.

B.

To f acilitate cur review of TA:0-2, descrit t and cuantif" the J

differences i'_ ween TACO-2 sL_ :dels (e.g., is31 densificatien, fission gas release) and sub ;dels of ;:e

s ccdes with v.bich we.culd Le familiar.

C.

To help us identify changes in cperating li.~.its that c.ight be sciri as a, mit of tha cpplicaticn of L 'l-10141, describe and c.'. ;ntify t' e dif ferPnces bet':.:n l ACO-2 p ec dicti;ns :nd th:se cal-n culated by previcus codes for a;plicati:ns identified in ycur re-sp nse to Cuestion 1.

3.

TACO-2 Input A.

State w' nether e ach input v2lue identif,ed in *ppendix A of E4'.,'-

10141 is bcst-cstimate or conscrvative, cr otSen.ise renits in a best-estirste or conservative calculat.:n.

If censerva ti ce, quanti fy the r argin of conservatism and the basis fcr the r.rgin used.

If the *.argin viries fr:n applicatico to c;plicaticn, provide this informaticn for each differcnt 5;plicatico.

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