ML19326E175
| ML19326E175 | |
| Person / Time | |
|---|---|
| Site: | 07109010 |
| Issue date: | 06/23/1980 |
| From: | Williams C NL CHEMICALS (USA), INC. |
| To: | Macdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| 16661, NUDOCS 8007280315 | |
| Download: ML19326E175 (3) | |
Text
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Chief, Transportation Certification Received Ey, TW iC "
Branch U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Subject:
Certificate of Compliance No. 9010, Rev. 6 Gentlemen:
NL Industries requests that the subject Certificate of Compliance be revised to authorize the shipment of PWR uranium oxi6 fuel assemblies which contain additional fuel rods secured in the guide tube thimbles.
Specifically, it is requested that an item 5(b)(1)(iv) be added as follows:
1 (iv) Irradiated PWR uranium oxide fuel assemblies including additional irradiated fuel rods inserted and secured in the guide thimbles.
The fuel assemblies shall conform to the maximum active dimensions as described in Item 5(b)(1)(i) except that maximum initial U content shall be 495 kg and the maximum average initial U-235 enrichment shall be 3.35 w/o.
There would be no increase in reactivity since the requested increase in uranium content coupled with the decrease in enrichment results in a mass of U-235 less than presently authorized.
It is also requested that Item 5(b)(1)(1) be revised to stipulate burnup as " Maximum average burnup".
The above revisions are being requested to accommodate an impending spent fuel shipment for Westinghouse Electric Corp., Water Reactor Division.
The attached Table I was provided by Westinghouse and is enclosed for your general infomation.
Note the cool down time for Nuclear Division /NL Indusines. Inc.
Foot of West Street, Wilmington. Del.19801 Tel. (302) 656-1661 Mailing Address P.O. Box 2046, Wilmington, Del.19899 1666'1, 800gg80h
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' ' Mr. Charles E. MacDonald June 23, 1980 Page two the last four rods listed.
Westinghouse has made the following statements:
"The combined decay heat of the one assembly and six-teen fuel rods was calculated to be approximately 5.0 kw, assuming a September 1, 1980 shipment date.
The total Iodine radioisotope content to be present at the time of the sbipment was calculated to be less than 1.0 curie."
Based on these two statements the shipment is considered to be in compliance even though four of the fuel rods do not meet the minimum cooling time of 150 days stipulated by sub-ject Certificate of Compliance.
Enclosed is a check, in the amount of $2,8'J0.00, as required by the schedule of fees given in 10 CFR 170.
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Very truly yours,
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Charles E. Williams Engineering Manager CEW/ljh Enclosures l
cc:
G.N. Dixon, Jr.
G.L. Stukenbroeker
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TABLE l' NUCLEAR CHARACTERISTICS OF ZION SPENT FUEL TO BE SHIPPED Initial U-235 Total Uranium Average Discharge Dischared(I)
E_nrichment (w/o)
Mass (Kg) _
Burnup (NWD/MTU)
' (day )
Standard Assembly C15 3.31 455.00 39,010 750 Removable Rods 605, 616, 652 and 687 3.31 8.87 17,575 1650 607,642, 691 and 695 3.31 8.87 31,193 1110 610, 677, 689 and 699 3.31 8.87 39,308 750 622, 624, 661 and 663 3.31 8.87 46,506 120 TOTAL 490.48 a
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(i (1) Assuming a September 1,1980 shipment date, r
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