ML20002D144
| ML20002D144 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 10/07/1966 |
| From: | Morris P US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Wall H CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| Shared Package | |
| ML20002D145 | List: |
| References | |
| NUDOCS 8101190524 | |
| Download: ML20002D144 (5) | |
Text
.
$PhEMEliTn; DISTRIBUTION:
e* kh UNITED STATES AEC Public Document Pe.
h ATOMIC ENERGY COMMISSION Formal Dochet Cy 6 D*
WASHINGTON, D.C. 20545 Suppl (50-155) l
- 1,,%,,,,g,d f DRL Reading
- 11. Stecle 0CT 7 1966 R6PRSB Reading B. Grines C. llenderson, REG J. Shen m n m vatrea m E. G. Case, DRL D. Muller Docket No. 50-155 H. Shapar, CC L. 1;ornblith, CO (2)
M. St ner, DRL (5)
Consumers Power Company 1945 Parnell Road R. Huard, SLR Jackson, Michigan 49201 R.
K.
k vho t DRL Attention:
Mr. H. R. Wall Change No.10 Vice President Centlemen:
The Consumers Power Company, by letter dated July 29, 1966, and supple-mented by TWX on August 16, September 9, and September 26, 1966, has requested changes in the Technical Specifications of License No. DPR-6, dated May 1, 19 %, for the Big Rock Point reactor. The proposed changes involve the use cf vibratory compacted powdered UO2 fuel as Reload "C" fuel in place of the pelleted UO2 fuel used in the original core. The remainder of Reload "B" fuel previously authorized in Technical Specifi-cations Chr.aze No. 8 would also be inserted into the core during the next partial core refueling. Cobalt targets would be included in the Reload "C"
fuel bundles in the same manner as previously described for the Reload "B" fuel. This request has been designated Proposed Change No. 10 and has been reviewed in accordance with the provisions of Section 50.59 of the Cocunission's regulations. We have found that the proposed change does not present significant hazards considerations not described or implicit in the hazards sununary report and there is reasonable assurance that the health and safety of the public will not be endangered. A copy of the related safety evaluation is enclosed.
Accordingly, pursuant to Section 50.59, 10 CFR 50, the Technical Specifi-cations of Operating License No. DPR-6 are hereby changed as set forth in Attachment A to this letter.
l bec:
- 11. J. McAlduf f, ORO l
E. Tremmci, IP ORIGINAL SIGNED BY R. L. Leith, OC Peter A. Morris l
W. B. Cottrell, ORNL l
Peter A. Morris, Director l
Divirion of Reactor Licensing l
Enclosures:
- 1. Attachment A, Change No. 10
- 2. AEC Safety Evaluation DRL 1
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j ATTACHMENT A CONSUMERS POWER COMPANY CHANGES TO TECHNICAL SPECIFICATIONS CIIANGE NO. 10 (1) Delete the present section 5.1.5 and repla'ce,it with the following:
"5.1.5 General Core Composition The data in this section present general design features of the original fuel, research and development fuel and reload fuel that shall make up the physical composition of the core.
(a) Enrichment of Fuel, approximate weight percent U-235 from 2.6 to 5.2 inclusive.
(b)
General Core Data:
Number of Fuel Bundles in Core, A Maximum of 86 in 84 Bundles, Lb.
29,300 Total Nominal Weight UO2 Moderator-to-Fuel Volume Ratio 2.65 Equivalent Core Diameter ( Approximate), Inches 77 (c) Fuel _ Bundles:
The general dimensions and configuration of the three types of fuel bundles shall be as shown in Figures 5.2, 5.3, 5.4 and 8.1 of these specifications. Principal design features shall be essentially as follows:
Fuel Bundles General
_Oricinal 9elnad Research & Development Geometry, Fuel Rod Array 12 X 12 11 X 11 11 X 11 Rod Pitch, Inches 0.533 0.577 0.580 Standard Fuel Rods per Bundle 132 109 109 Special Fuel Rods per Bundle 12*
12**
12 Spacers per Bundle 3
5 7
- (4 Special Fuel Rods at Bundle Corners Are Segmented)
- (Reload Fuel bundles may contain (in the corner regions of the bundle) four Zircaloy-2 tubes having encapsulated cobalt targets sealed within) 4 l
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_ Fuel Bundles Original Reload Research & Development
[gpi Rod Cladding Material 304 SS ZR-2 304 SS, ZR-2 Inconel 600 and/or Incoloy 800 Standard Rod Tube Wall, Inches. 0.019 0.034 0.010 to 0.000, Inclusive Special Rod Tube Wall, Inches 0.031 0.031 0.010 to 0.030, Inclusive Fuel Rods Standard Rod Diameter, Inches 0.388 0.449 0.425 Special Rod Diameter, Inches 0.350 0.344 0.320 UO2 Density, Percent I
Theoretical' 94*
94 l Pellet fuel 90 to 95, Inclusive Approx. 85 Pbwdered fuel Active Fuel Length, Inches Standard 70 70 68 to 70, Inclusive Corner 59 Fill Gas Helium Helium Helium (d)
Channels Number of 304 SS and/or Zr-2 88 Wall Thickness, Inches:
304 SS 0.075 Zr-2 0.100 Inside Width, Inches:
304 SS 6.57 Zr-2 6.54 i
Length, Inches:
304 SS 79-5/8 Zr-2 79-3/4 (e) Total Weight Supported by Core Support Plate:
86 Fuel Bundles @ 440 Lb/ Bundle, Lb 37,840 88 Support-Tube-and-Channel Assemblies l
@ 100 lb/ Assembly, Lb 8,800 l
86 Orifices @ 10 Lb/ Orifice, Lb 860 l
2 Channel Plugs @ 10 Lb/ Plug, Lb 20 1 Flow Distributor Assembly, Lb 2.500 Total Weight, Lb 50,020
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(2)- Add a new Section - 5.1.8:
"5.i.8 Thin Clad Powder Fuel Bundle Two of the Reload "C" fuel bundles may contain standard rods with Zr-2 cladding of 0.025" thickness; otherwise, they will be the same as the remaining Reload "C" fuel bundles.','
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