ML20198K809
| ML20198K809 | |
| Person / Time | |
|---|---|
| Site: | Framatome ANP Richland |
| Issue date: | 12/30/1997 |
| From: | Edgar J SIEMENS CORP. |
| To: | Schwink W NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| JBE:97:183, NUDOCS 9801150104 | |
| Download: ML20198K809 (5) | |
Text
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u,2 w y SIEMENS.
Decembe 30,_1997 F~/ ;
JBE:97:183 f 7 f t : U.S. Nuclear Regulatory Commission - Attn: W. S. Schwink, Acting Chief Licensing Branch Divl3 ion of Fuel Safety Cycle Safety & Safeguards. NMSS WashingtoniDC 20555 Dear Mr. Schwinki
Subject:
Operations Scrap Warehouse Ref.: _ Letter, J.B. Edgar.to M.F. Weber, Same Subject, dated December 3,1997 . Harry Felsher of your staffi in a telephone conversatica with Siemens Power Corporation (SPC) personnel on December 23, asked a number of questions pursuant to his review of SPC's request for a license amendment for the Operations Scrap Warehouse. The questions were informally answered during the conversation and are formally answered in the attachment to this letter. With the referenced letter SPC included tables discussing the results of normal and collapsed storage rack reactivity calculations. Also included with this letter are those tables revised to include powder density along with the container loading information. If you require further information, please call me at 509-375-8663. - Very truly yours, James, Edgar t ~ Staff Engineer, Licensing fg)y /pg ' Enclosures 9901150104 971230 " Pa A*J7 E.' R.. H.,y W a cx 7 Siemens Power Corporation Nuclear DMalon 2101 Hom Rapids Road Tel: (509) 375 8100 Engineering & Manufacturing - - P.o. Box 130 Fax: (509) 375-9402 Richland; WA 99352-o130 15C016=
~' _g_ , ~ e4 - 3 6. --.- 5 ~ 4 December 30,11997! Page 1 Attechmentf Q What powder ' density.was used in each of the' cases?. Response:? The powder density for each case can be obtained from the Information . provided. However to facilitate your review the powder density has been added to column l three of the attached table. O 2' What is the' difference between cases s3OOf 2sb.12.OOO and s500fsp.12.OOO? Response:- Case name s500fsp.12.OOO contains a typo. The correct case name is - s3OOfsp.12.OOO; As stated in the table originally provided, case s3OOf2sb.12.OOO includes half of the steel from the contciner_ wall. Case s3OOfsp.12.OOO includes half of ~ the steel from the pallets the containers' sit on but does not include steel from the container.L ll .- wa. - Q-3. How was the density of water in powder ca!culated. ' Response: The water content listed in the table is the wt.% water in a UO -H O mixture at 2 2 the given UO density. The formula used tc calculate this density is as follows: 2 ^ (g UO /1.wt.% H O) - g UO /cc = g H 0/cc 2 2 2 2 For example for 4.Og/cc UO2 powder with 2 wt.% water: 4/.98 24'=;O.0816 g H 0/cc 2 A standard SCALE 4.2 input for this mixture is as follows: uo2 '1 ; den = 4.0 1. 293 92235 5.0 92238 95.0 end h20.1 den = 0.081o 1.0 293 end 4 1 m 5 .g 4. .'0.-
~ December 30,1997 Page 2 ' Table 1 - Normal Rack Spacing N9 U0,1:
- wr4%ateroE iCf _
9 u [*% s L.'per Psil; f epalent.- Volume %L ,i k',,, ^ 6 Case IDL Eid d T.egt' tand; gadditive.. . Interspersed A. 7;g 3
- (droa-7)l
[(wt% .. Mg added to' powder
- Water::
Javerage M. o averagel+; 2a ; , r., Comments (^ q:, _ ' UO /cc) ; ~ M W 2 s3OOf2.OOO 3.0 42.0 2.0 0 0.66641 0.00236 0.67113 Normal conditions, i.e., safe batch (1.89986) mass and 1 wt% moisture and 1 wt% moisture equivalent additive, s5COf2.OOO 5.0 18.0 2.0 0 0.61198 0.00265 0.61728 Same as above. (0.81423) f500f2.OOO 5.0 88.4 2.0 0 0.86350 0.00219 0.86788 Same as above, except 4 g UO,/cc (4.0) in each pail. d3OOf2.OOO 3.0 84.0 2.0 0 0.76860 0.00228 0.77316 Double batched mass. (3.79972) d500f2.OOO 5.0 36.0 2.0 0 0.70939 0.00241 0.71421 Same as above. (1.628451 s3OOf3.OOO 3.0 42.0 3.0 0 0.70921 0.00243 0.71407 Double ba'ahed water or additive. (1.89986) s500f3.OOO 5.0 18.0 3.0 0 0.62286 0.00239 0.62764 Same as above. (0.81423) s3OOf4.OOO 3.0 42.0 4.0 0 0.75215 0.00241 0.75697 Double batched total moderator. (1.89986) s500f4.OOO 5.9 18.0 4.0 0 0.64886 0.00262 0.65410 Same as above. (0.81423) s3OOf2.OO7 3.0 42.0 2.0 optimum 0.95884 0.00268 0.96420 Normal conditions, except optimum (1.89986) (7%) interspersed water. No source available for this condition. s500f2.OO7 5.0 18.0 2.0 optimum 0.94137 0.00244 0.94625 Same as above. No source (0.81423) (7%) available for this condition.
i. December. 30,1997 ' Page' 3 ' Table 2 L - Collapsed Rack Jj% ' $Qf y _ f.y.J jks UOQ j wt%; water larj .. m, $t) p., ( ~ ?$U "lY$ < ~ ?W#'NMg m wi-N, -?lf: :.T,.lh"N VDOT l99VNi n S, W ~?" j }WN %' W ^ch 1%~lRenl, Wl+hf,G a J ACase.. ID.,F ",., Enrichment ... c a,nd,A... - Eaddawe,. Interspersed' ,.,,', r,f,i @,,. ^' ~ 7 C < c._ q -r Uh ,. f, hec 4*-: -;, g y. g.y x4 -, : p yg 3;g,, _.; < ;- 7 ~: g
- geg; 4 7 q,,
+ a s3OOf 2.12.OOO ' 3.0 42.0 2.0 0 0.82227 0.00212 0.82651 1.x12x12 array of pallets. (1.89986) Single batched mass and ' moderator. s500f 2.12.OOO 5.0 18.0 2.0 - 0 0.76124 0.00221 0.76566 Same as above (0.81423) s3OOf 2.13.OOO 3.0 42.0 2.0 0 0.82565 0.00224 0.83013 Same as above, except (1.89986) 13x13x13 array. s500f 2.13.OOO. 5.0 18.0 2.0 0 0.76967 0.00255 0.77477 Same as above. (0.81423) s3OOf4.12.OOO 3.0 42.0 4.0 0 0.96118 0.00240 ').96598 12x12x12. Single batched (1.89986) mass and double batched total moderator. Dancoff = 0.25314 ; s3OOf 4.12.nm.OO ) 3.0 42.0 4.0 0 0.99167 0.00232 0.99631' -12x12x12. Single batched f1.89986) mass and double batched total moderator. Dancoff =0.0 s500f4.12.OOO 5.0 18.0 4.0 0 0.84795 0.00241 0.85277 Same as above. (0.81423) - d3OOf 2.12.OOO 3.0 42.0 2.0 0 0.89702 0.00211 0.90124 l 12x12x12. Double batched (1.89986) mass and single batched moderator. B k e
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~ 1Decernber 30,1997 Pagef4 C Table 2 - C " ::1 Rock (Cont'dt w Mjf{F J:t k,j[QgMNNy{}}ni.tggM Mdygjjfh@ggggg[h MNdhhhfkffhi#* MhNIb& M [ , arf O9bg%y) M$gjh %igsAgr
- 188M5djL 4per PaBj j -. equlwelbaut'#3 c Vehene
$k ip
- .6 JCM 69 l$;[jg% M:eegld ',
CWh "2 C,7 E Buldunstet hfend) 4 N0 6 5ga . Inessupersed I$h$CaseM?)g%i M$$5yE ~ s ~/AsseyMittnaulisittjg r %gege.gp gg4 g g o peep fecessesl ponder,QWeser% 'agesge g.e.;" euesagewi7 pp -+ qfjQ, f g :g y Q,g
- q;Q, gg y yg,,gh gyngg[gfgp.y 37 gg
- ;; g g q. d500f2.12.OOO 5.0 '18.0 2.0 0 0.88597 0.00245 ~0.8908h Same as above.. (0.81423) s3OOf 2.12.100 3.0 42.0 2.0 100 0.76613 0.00221 0.77055 12x12x12.' Single batched-(1 89986) mass and moderator. Fully. flooded. i~ s500f 2.12.100 - ~ 5.O ' 18.0 2.0 100 0.76443 0.00228 0.7E899 Same as above.' (0.81423) s3OOf 2st.12.OOO
- 3.0
- 42.0 2.0 0
0.83108 0.00217
- O.83542 12x12x12. Single batched.
(1.90489) mass and moderator. % of' i steel from pails included ~t s3OOf2sp.12 OOO 3.O ' 42.0 2.0 0 0.81281 0.00241 0.81763 12x12x12.. Single batched (1.89986) mass and moderator. % cf i steel from pallets included. - Note: A single rack section is assumed to' hold 50 pallets. The evaluations assumed 'at _least 1728 pallets in a cubical array. + I
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