Text

Forwards Comparison of GE & NRC Criticality Calculations of Model 700 Package Containing 10 & 20 MTR Fuel Assemblies.Ge Requested to Resolve Calculation Discrepancies
	ML20141N247
Person / Time
Site:	07105942
Issue date:	09/10/1985
From:	Marotta C; NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
To:	Odegaarden R; NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
Shared Package
ML20141N246	List: IA-85-791, Confirms 850521 Discussion & Requests Addl Info Re Application for Certification of Model MH-1A Package.Encl Summary Identifies Deficiencies in Structural Analysis of Package That Must Be Addressed.W/O Encl; ML20141N245; ML20141N247; ML20141N248; ML20141N249; ML20141N250; ML20141N251;
References
	FOIA-85-791 NUDOCS 8603060003
	Download: ML20141N247 (5)
	v • d • e

__ _ _ _-- _ .__ . _ . . _ _ _ _.

SEP 101985 FCTC:CM 71-5942 f

MEMORANDUM FOR: Richard H. Odegaarden. FCTC. MSS FROM: Charles R. Marotta. FCTC. MSS .

l

SUBJECT:

COMPARISON OF GE AND NRC CRITICALITY CALCULATIONS I

OF THE MODEL 700 PACKAGE CONTAINING 10 MTR FUEL !

ASSEPSLIES AND 20 MTR FUEL ASSEMBLIES GE calculated a keff of 0.9236+0.0075 for 10 MTR fuel assemblies in the flodel 700 (June 7.1985) and aleff of 0.88725+0.00446 for 20 MTR fuel -

, assemblies in'the Model 700 (August 7. 1985).

He have asked GE to resolve this discrepancy (September 4. 1985). In ,

anticipation of this resolution. I am reporting NRC's homogeneous calculations l for the cases (enclosed input and output).

I a. for 10 MTR assemblies: keff = 0.889,+0.006 ,,

b. for 20 MTR assemblies: keff = 0.957+.,0.007.

Since there is a 100% fissile mass increase between a. and b., we can assume 1/4 of 100% or 25% increase in keff if the system were a spherical geometry; since we have stacked 10 assemblies on top of another 10. one must take 1/3 of 25% or 8.3% is expected on the change of keff or:

=7.4%$ calc.versus8.3%(expected).

0 '.

Charles R. Marotta

Enclosure:

As stated Distribution: / enc 1 Docket File CRMarotta FCTC R/F l MSS R/F w/o enci 8603060003 e60108 PDR FOIA AUDIN85-791 PDR A.

..FCT . . . . . . . . . .. . .J. . ...

.=> CRM ,a: alm l

. 7..

) .

.. 4.. .

. 4.. ..t.

., c ,c .... ,..... .... .......

oFFiciAi_ REcono coev f>

e

- C.

t

.)

v S

(

(~ . y 2 ra g 5 -

4 1

4 s ,,,

t n

E

,p S ,

) U 0 E 0 M .

- I -

7 T 1

l i

= P .

0 5

8 C s.

/ 0 3 o 0 1

0

/ 5 n 5 1 /

9 4 R 2 M 3 R

= '. I I ? E 5 I t S R

E 4 D I I

l'?

o E

V E M 5 5 .

I T M 2 0 y R A O , 9 0 D D H 8 lj F '. M f F N L o I D A s,5g s. F T

A k

)

N R. R R R i t

C MD F t1 S 5 NN 5s,1 p55 s 5 FE 8i1{ g f '. DD 9 R9 =

A NN 11 D

R 1 1 EED N

D N

4. t . I 6.2 499t t_

2 E U Y EDE 2223 nI t

C A N = 1 t C E D E 3 3 . .

R 2 3 N F 2 8o t,1g 659 6 i O T O m1 ,0 . ? o ?1 T ll Aal 3 12?3 T R E 0n8 7 % 1 F N M 0 .126 8 =.n 1 ,t. L I I 0 a96 0 3 .{.6t P T '

,0 763t 65' Aa1a5e M D O N 063 '

6. - =1,- , . C A D S

E t

A F*

4 20.30 3

,0. F A

1n.2547 9a{ . . .

. n0 S l R 0R 7 a 0 E a T 0 T 4s9( g. F C C H O M nc C ' 0. 0,0 ' n,1 72 H S

A E o 0 o0g,57a7 g I R i 0 '. _t .39g,. N E O0 0 1 - 1 o0 I L L ' 9 F U

n L 000 3755 . . a. 7 T 9v3p s o W 0 g, .

M 1 38i,1.500 i

Y

!1 a 12391 47 H 2 3 Y R 0T 03130242R A 2 0M 1 0 T 2 M 3 7G 70 E 8 I A P 2 0 Y M A R S EU E3 D O S P C GU G DDRDDnE C R5 0II IIIG E G3 0nnEOOn E L

l 32 1 aaRRRaDD L i 2 L ER i uOUiuNN l

l 1 i

D 1UAH0H0FP 6CCCCCCEE D n n M H O

s % *.

g g, g g' 3 g 4 O . O e e ,

GE 700 to HTR FA ~~

LIFFTIME a 2251544F=04 + nR = 7279529E=o6 r.EuERATTON TIME a 3.39607E=05 + OR =

5 56148E=07 No. nF INITIAL GENFRATIONS AVFRAGF bi pFR CENT SKIPPED K. EFFECTIVE 95 PER CENT 99 PtN CENT DEVIATinN COMFinFNCF INTFRVAL CONFIDFNCE INTERVAL CUN[IDEnCE INTER 3 028A905 + UR = 0.0060m 0.AAP95 Tn 0289513 0.A7669 TO 0.90121 0.87081 10 0,907 4 0288953 + UR = 0.00614 0.AA116 Tn 0289569 n.87720 70 0.90186 0.87104 TO 0.908 5 0289066 + 04 = 0.'0061A 0.84450 Tn 0.'896A1 0.87834 70 0.90299 o.A7217 TO o.9n9 6 0.'A9048 + OR = 020062i n.Ma4pt Tn 0289075 0.87794 70 0.90302 0.87 107 10 109 7 0.'H8996 + UD = 020063A 0.AA1hn Yn 0.'89632 n.87724 70 0.90268 n.87087 TU o.909 8 0.'89080 + OR = 0.'05647 0.8841i 70 0289722 0.87795 TU o.90364 o.87153 TU o.910, 9 0.'88993 + OR = 0 .' o n 6 4 A 0.aa149 Yn 02n9642 0.87697 70 0.90290 0.A7048 To o.909-10 OIhA991 + OR = 020060s o.4811n To c.'84o5't o.87669 70 0.90312 0.87009 Tu o.9n9-11 0.'80099 + OR = 0.'00n73

0.AA1A4 To 0.89729 0.87719 TU 0.9n399 n.87aSo 10 0.930, 12 0289009 + OR = 0.00681

0.AA17A Tn 0.89691 0.87647 TO 0.90372 0.A09ee 10 0.910!

17 0.' A A 8i8 + (12 = 0.'0067a n.AAhd3 in 0.'89552 c.87529 TO 0.9n226 n.Ao855 10 0.969, 22 0.'h9071 + UR = 0200680 n.H83A7 Tn 6.'89761 0.M7693 70 0.90450 0.A7004 TU c 'It!

27 0.'89222 + OR = 0.'nu?31 n.8849n Tn 0289953 n.87759 TO 0.90684 n.A7028 10 0.9 41 37 o.'AA793 + 0g - 0.'n0497 n.AA59A To u.'89491 0.87399 TO 0.90188 0.80701 TU 0.9nas 37 o!894A7 + UR = 0.'006H4 0. ARA 54 To 0.'90171 n.88120 TO 0.90e54 n.87430 Tel o.9151 42 0!H9532 + Up ~

= 0.'0 0 72 E 0.nandi Tn 0.95297 n.88062 Til 0.90982 n.87357 10 0.917c 47 02a94A9 + UR 0.'n0917

=

0.889ii Tai 0.9n401 n.87665 70 0.91313 0.80753 Tu o.92p; 52 029nuh2 + UR = 0.'0 i P 14 c.A8871 To 0.'91300 0.87584 70 0.92539 n.P0345 Til o.9377 57 029at71 + OR = 0.0it9A n.AA971 Tri 0.'91319 0.87725 TO 0.92517 0.80527 Tis 0.9371

f "" NW OR ITITTTIfff!T NN NN TT

~ ~ - '- -

9/

. ~

9 9

y -

) .

(/95 PRTHANY HOnt'lE ACCFSM AND TNput RECripD t shALF DRIVER =

A5/13/85 - 17.00)

NriDilLE CSASP WTLt RF CALIED TTHF nF day 18210213 DATF A5I215

)

GE 700 70 HTR FA 173GRnUPGMTH a 8 1 T NFHOMME 0 film 0 0

] U-235 AL 1 o .'q .'agn44 FNn 1 n.n * .n1122 FNn H n2n 1 04143 END

] U H

1 P

o 'o .'u P 192 ENn

_,0.0 , .no66667 END D 7 n.n .n31335 EHn

) FE 3 02ro .'nn5 ENn PR a 020 2o33 FND GE 700 Pn MTR FA

} b 100 300 31,1 31 n, , ,

Ct'80!O .. ,

12ghM79 =R.H579 1.hH'l =3 483 57,.7A9 =g7.785 CllHOID 173#.4 3 3 g t75 =1 g t7% a.n =4.q Sa g =59 g 17TR 5 g

) CnRE RDY 0 9.j7s =o,474 {2 -tR. 54, =5H. t?1p.5 CalhnID 2 15g 7 =t1 7 (4,.5 -14 1 69 1 -on.1 171p.s CuanIn 4 en, =4n g Go g =4n. 4%.,=A5. {P3R.%,

?

) Ct'8nIn 2 70. =7o. 70. =70. 170. -IPu. 121R.s 1 END GEUMETRY END HnDilLF CSasP 13 FINiMHFD.' CnNPLFTTDN cone = MhA TFM 000 llSFR n000. CPil TIME USEn 417 80 (SLCUNDS)

)

h Ys(

,a = h.1ib15)(ME %f57. 75 f)={((((,JIfut FA

0 1

O

,O -

GE 700 20 "TR FA O LIFFTIME a 721403aF oa + nR . p.'74167E=ob cENER A T TilN TIME a 3.47400E=05 + pH = 6e317 1 4 17 O No. nF INITIAL GENrRATil1NS AWFPAGF Ai AFR CENT 95 PER CENT 99 PER CEtr AwIPPED K=FFFFrTf'VF DFVTAT!nN CONFinFNCF INTFWVAL CONFIDENCE INTERVAL C ONF. ID ENCE INT [

3 0299095 + UR . 0.'00704 0.449M9 Tn 6.'96400 0.9aP84 TO o.97106 o.93578 To o.9*

g 4 0295599 n.oo7tn l + OR .

0.94AA9 Tn 0.'96309 0.94180 TO 0.97019 0.93470 Tu o,9-5 0.'99494 + OR 0.'o0711 0.94ini Tri 0.'9nPo7 a.9406R 70 o.96920 o.93355 TO o.9-6 o.'95580 + UR =

0.'no714 0.9a Aho Tri o.gsp99 o.94141 TO o.97018 o.93422 TO o.9*

g 7 o.'95492 + sin . o.'oc728 0.94ini Tn 629621A o.94041 70 0.96983 0.93316 TO o.9'

)

A o!995A9 + OR =

0.'co73I 0.94nqm Tn 0296319 0.*4127 70 0 97050 0.93396 TO 09*

I* 9 o!995a3 + no . 0.'60742 o.9a8ai To o!96784 0.94060 70 0.97026 6.93318 10 0.9' I, 10 0295390 + Op = 0200729 oJ9aA3; To o!96o79 n.93893 TU n.968c7 o.93165 10 09*

l o294276 + 09 . o.'oo734 n.0aa94 in o.'99997

~

11 0.93766 TO o.96o87 0.93 035 TO o.9*

+ up 12 0294761 - o.'no742 n.945i9 in o.'96cn3 c.93776 TO o.96746 o.93034 TU o.9*

j, 17 o29aga4 + iin . o.'c nomo o.9aiA? Yn o.'99786 0.93380 TO 0 96588 0.92578 10 0 9*.

27 u?9sti9 + OR . o.'onmaa o.94tig Tn o.'95973 0.93512 70 0.96727 0.92 7 0s TO o.9; 27 0299541 + I]R . 0200R57 0.94i14 Tn o.'96448 0.93877 70 0.97304 0.93020 TU o.96 37 c:9aa>4 + da - n;oca.n o.939 4 Tn 0:9sans

. o.93 ton TO o.96543 0.92244 To o.9-

ML20141N247

Text

SUBJECT:

Enclosure:

Navigation menu

Search