ML20002E055
| ML20002E055 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 12/29/1971 |
| From: | Skovholt D US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Sewell R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| Shared Package | |
| ML20002E056 | List: |
| References | |
| NUDOCS 8101260211 | |
| Download: ML20002E055 (5) | |
Text
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UNITED CTATES b
ATOMIC ENERGY COMMISSION I 'l d
WASHINGTON D.C. 20545 December 29, 1971 Docket No. 50-155 Consumers Power Company ATTN:
Mr. Ralph B. Sewell Nuclear Licensing Administrator 212 West FHchigan Avenue Jackson, Michigan 49201 Change No. 27 Gentlemen.
License No. DPR-6 Your Proposed Change No. 27 dated December 9,1971, requested changes to the Icchnical Specifications of Facility License No. DPR-6 to permit operation of tne Big Rock Point Nuclear Reactor with two " Type J-2-U0 -Pu0 "
2 2
fuel assemblies in the core.
The "J-2" fuel assemblies are nearly identical in mechanical design to the two Type "J-1" fuel bundles which were inserted in the Big Rock Point reactor in March 1970 as approved by Cnange No. 21 dated February 9, 1971.
Each "J-2" fuel assembly contains 12 plutonium enriched fuel rods,12
" experimental" UO2 fuel rods, and thicker cladding on the 44 fuel rods with the highest power peaks. We have concluded that the resultant enriched fuel plutonium inventory within the Big Rock Point core with the proposed "J-2" fuel bundles inserted is within previously authorized limits, and that the consequences of design basis accidents are not increased significantly by insertion of two "J-2" fuel assemblies into the Big Rock Point core.
Based on our evaluation of the changes that have been described by Consumers Power Company, we have concluded that use of the two proposed "J-2" fuel assemblies in the Big Rock Point core does not present signifi-cant hazards considerations not described or implicit in the Big Rock Point Safety Analysis Report or previous evaluations of Technical Specification changes for the use of ' plutonium fuel in the Big Rock Point core. There is reasonable assurance that the health and safety of the public will not be endangered by the operation of the Big Rock Point Nuclear Reactor with two Type "J-2" fuel bundles in the core.
(( bY hNb hbl{l
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Consumers Power Company Dac~ ember 29. 1971 Accordingly, pursuant to.Section 50.59 of 10 CFR Part 50, the Technical Specifications of Facility License No. DPR-6 are hereby changed as indicated in Attachment A to this letter.
Sincerely, 1
l ~~
- 6 nald Skovholt
~ Assistant Director for Reactor Operations Division of Reactor Licensing i
- Enclosure;
~
Attachment A - Changes to l
Technical Specifications
. cc w/ enclosure:
George F. Trowbridge, Esquire Shaw, Pittman, Potts, Trowbridge & Madden 910 - 17th Street, N. W.
Washington, D. C.
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ATTACHMENT A a
CHANGE NO. 27 TO THE TECHNICAL SPECIFICATIONS.
FACILITY LICENSE NO. DPR-6 CONSUMERS POWER COMPANY DOCKET NO. 50-155
- 1.
Change Section 5.1.5. (c) to read:
"(c) Fuel Bundles The general design and configuration of the seven types of fuel bundles shall be as shown in Figures 5.2 through 5.7 (inclusively) of~these specifications. Principal design features shall be as indicated in Table 5.1."
2.
Add Figure 5.7, Big Rock Point Type J-2 (UO -Pu0 )" Fuel, to 2
2
- Section 5.
f 3.
Add the attached column and footnotes to Table 5.1 of Section 4
5.1.5.
4.
Change. Column 2 heading of Table 5.2 in Section 5.2 to read:
" Reload 'E', ' EdG ',
'F',
'J-l' and
'J-2'."
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Section 5.15. - Table 5.1 - Add the following column and footnotes:
General J-2 (UO2-Puo2)
Geometry, Fuel Rod Array 9x9 Rod Pitch, Inch
.707 Standa'rd Fuel Rods per Bundle 49 Special Fuel Rods per Bundle 32(8) 3 Spacers per Bundle Fuel Rod Cladding Material Zr-2 Standard Rod Tube Wall, Inches (9)
Special Rod Tube Vall, Inches (9)
Fuel Rode Standard Rod Diameter, Inch 5625 Special Rod Diameter, Inch 5625 Fuel Stacked Density,. Percent Theoretical 90.7(7)
Active Fuel Length, Inches Standard Rod 68 Special Rod 62.2 in Center Rod Fill Gas Helium 3 95%
( )This includes: 24 mixed oxide (Pu02-UO2) rods, 4 cobalt bearin6 corner rods and 4 gadolinia bearing rods.
(9)Thisincludes:
44 fuel rods,.050"; 33 fuel rods,.040"; and 4 cobalt rods,.035".
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