ML20030A530
| ML20030A530 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 05/25/1976 |
| From: | Sewell R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8101090949 | |
| Download: ML20030A530 (4) | |
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UJ Director of Nuclear Reactor Reguletion M 4y g lg g g0 US Nuclear Regulatory Comission s
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BIG ROCK POINT PLANT
//Ci]IF Attached are corrected copies of our May 11, 1976 and February 4,1976 submittals.
These corrections are to exposure points for MAPLHGR limits. The exposure points units were listed as megawatt days per short ton uranium (5'D/STU), but the exposures had been converted from megawatt days per metric ton mixed (E'D/MIM) by multiplying with the conversion factor rather than dividing. This resulted in the exposure points being too high (ie., original point 2250 m'D/MrU was converted to 2480 E'D/STU instead of to 20415'D/STMixed). We have reconverted all exposure points applicable to the unit "&'D/STU." The attached tables should replace those originally transmitted on February 4,1976 and May 11, 1976.
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TABLE 8.2 EEI UO -
Ceritermelt 2
Inter-NO2 mediate Advanced NFS-DA Minimum Core Burnout Ratio at Overpower 1 5' 1 5*
1 5*
15 Transient Minimum Burnout Ratio in Event of Loss of Recirculation From Rated Power 1.5 1.5 1.5 15 Maximum Heat Flux at Overpower, 402.000 Btu /h-Ft2 500,000 MaximumgteadyStateHeatFlux, Btu /h-Ft 410,000 500,000 500,000 329,000 Maximum Average Plenar Linear Heat (See Note 1)
Generation Rate Steady State, kW/Ft Stability Criterion: Maximum Measured Zero-to-Peak Flux Amplitude, Percent 20 of Average Operating Flux 20 Maximum Steady State Power Level, MW 240 240 t
Nominal Reactor Pressure During Steady State Power Operation, Psig 1,335 1,335 l
Minimum Recirculation Flow Rate, Lb/h (Except During Pump Trip Tests or Natural g
g Circulation Tests as Outlined irr Sec 8) 6 x 10 6 x 10 Maximum mwd /T of Contained Uranium for 23,500 an Individual Bundle 23,500 Number of Bundles:
1 3
Pellet UO 2
1 2
Powder UO 2
Rate-of-Change-of-Reactor Power During Power Operation:
Control rod withdrawal during power operation shall be such that the average per minute when power is rate-of-change-of-reactor power is less than 50 MWg less than 120 MW, less than 20 MW t per minute when power is between 120 and 200 MW,.and 10 b per minute when power is between 200 and 240 MW
- t g
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- Based upon critical heat flux correlation, APED 5286.
- No longer used in reactor.
Note 1:
MAPLHGR (kW/Ft)
Planar Avg Exposure (Wd/STM1 NFS-DA 0
6.38 20h1 6.79
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4536 6.76 6.86 9979 13608 6.97 19051 6.95 25401 7 05 Corrected 5-25-75
(original Submittal on 4-76)
MAPLHGR (kW/Ft)
Planar Average Exposure *
(mwd /MTM)
(mwd /STM)
Modified F E-G, F. J-1, J-2 Reload G Reload G-1U 6.38 6.40 o
200 95 9.4 6.86 1,000 907 2,000 1,814 6.87 2,250 2,041 6.79 5,000 99 97 5,000 4,536 6.76 6.90 10,000 99 9.7 10,000 9,072 7.05
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11,000 9,979 6.86 15,000 9.8-9.6 15,000 13,608 6.97 16,000 14,515 7 25 20,000 8.7 8.6 20,000 18,144 7.25 6.95 21,000 19,051 25,000 8.7 8.3 28,000 25,401 7.05 30,000 27,216 7.28
- Corrected as of 5-25-76 (converted from wd/ Metric Ton to *d/Short Ton) f i
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