ML20045C211
| ML20045C211 | |
| Person / Time | |
|---|---|
| Site: | 07109019 |
| Issue date: | 06/14/1993 |
| From: | Vaughn C GENERAL ELECTRIC CO. |
| To: | Macdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| CAL, NUDOCS 9306220214 | |
| Download: ML20045C211 (4) | |
Text
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GENuclear Energy
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June 14, 1993 90/9 Mr. Charles E. MacDonald, Chief Transportation Certification Branch Division of Fuel Cycle & Material Safety U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Dear Mr. MacDonald:
Subject:
Request for Approval to Ship 1
References:
(1) NRC Certificate of Compliance USA /9019/AF, Model BU-7 Shipping Package, Docket-71-9019 (2) Confirmative Action Letter, CE MacDonald to CM Vaughan, 6/10/93 General Electric Company's Nuclear Fuel and Components-Manufacturing (NF&CM) facility hereby requests that the referenced Confirmative Action Letter (CAL) be modified to allow shipment of UO in the BU-7 by NF&CM ir accordance with the information 2
provided with this letter.
i
'l In the CAL, you stated that our request for approval should i
include the type and form of material, the maximum quantity of material per package, the amount of boron present and the criticality safety analysis for a damaged array.
d contains a summary of the results of our criticality analysis for the accident condition arrays.
This is based on a' 7X9X4 triangular pitched array, fully moderated and water reflected.
No credit is taken for boron.
The other constituents of the foam are c$nsidered as being presentEat a foam density'of 7 lbs. per cubic foot.
The calculated maximum mass limits for 00 corresponding to the maximum enrichments are also provided.
2 i is a diagram of the accident condition array.
Based upon our analyses, we request permission to ship UO2 Powder-in accordance with the conditions and the limits provided in the attachments to this letter.
180008 9306220214 930624-PDR ADOCK 07109019 ib
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Mr.' Charles E. MacDonald
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- June 14, 1993-Page 2 i
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If you have any questions or would like to. discuss this matter-i further, please contact me.
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Sincerely,
'GE NUCLEAR ENERGY Q
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Charles M. Vaughan, Manager Regulatory Compliance
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attachments cc:
CMV-93-075 Mr. Stewart D. Ebneter NRC-Region II I
Mr. George Brown.
DOT-Washington, DC z
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.Mr. Charles E. MacDonald i
June-14, 1993 K + 20, VALUES FOR
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ACCIDENT CONDITION ARRAYS
- MAX. UO2 POWDER WTFRH0-+--------------------------------------------
2 E
PER BU7 MAX.
(KG)
.35
.40
.45
.50
.55
.60
.65 2.85 46
.9307
.9348
.9235 3.0G 42
.9317
.9326
.9358
.9163 3.50 33
.9248
.9354
.9281
.9023 4.10 27
.9341
.9344
.9305 4.31 25
.9227
.9374
.9293
.9141
(.9230)$ (.9372)
(9226) 4.60 23
.9204
.9372
.9349
.9216 4.85 21
.9240
.9322
.9265 5.00 20
.9001
.9272
.9248
.9273
.8982 NOTES:
2 The maximum bias as established in the consolidated application (1/27/93) is
-0.012. The limit for the K + 2a values is 0.9380.
2 Conditions - 7X9X4 arrays, triangular pitch, fully moderated, water reflected.
No credit taken for boron, the other constituents of foam are considered at a density of 7 lbs. per cubic foot.
The highest multiplication case (i.e., E = 4.31% mass = 25 kg per BU-7) was 3
repeated using carbon which may be present in additives. Carbon was added in the form of HC which replaces part of the H O and has a density of.812 grams 2
per cubic centimeter. The values (shown in parenthesis) show no signillcant change In multiplication.
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ag,c;g1gg.secoone1a ATTACHMENT 2 c$$oNYEY
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