ML20082E083
| ML20082E083 | |
| Person / Time | |
|---|---|
| Site: | 05000605 |
| Issue date: | 07/29/1991 |
| From: | Marriott P GENERAL ELECTRIC CO. |
| To: | Chris Miller NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation |
| References | |
| EEN-9152, NUDOCS 9107310180 | |
| Download: ML20082E083 (4) | |
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July 29,1991
? ?FN No. 075-91 Docket No. STN 50-605 EEN-9152 Documeni Control Desk U.S. Nuclear Regtilatory Commission Washington, D.C. 20555 Attention:
Charles L. Miller, Director Standardization and Non-Power Reactor Project Directorate
Subject:
GE Response to Radiation Protection liranch Request at GE/NRC Meeting, July 17,1991 Enclosed are thirty four (34) copies of the GE response to the request, made during the subject meeting, pertaining to ABWR fuel bundle source term information and the geometry of the drywell.
Sincerely, t
P. W. fv arriott, Manager Reguhtory and Analysis Services M/C 382, (408) 925-694C cc: F. A. Ross (DOE)
D. C. Scaletti (NRC)
R.L. Pederson (NRC)
D. R. Wilkins (GE)
J. F. Ouirk (GE) p.
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S To develop the fuel bundle source term the following should be used:
1.
Each fuel bundle is 6.1 inch (15.5cm) by 6.1 inch. There are 872 bundles in the ABWR. Therefore the average power produced by each bundle is:
3926 MWt / 872 = 4.50 MWt = 4.5E+06 watt 2.
The power produced by any given bundle can bc lound by multiplying the value above by the specific bundle power givoi,in Table 12.2-1, sub-table E.
3.
The bundle can then be described ac a box 6.1 x 6.1 x 150 inches. Note 144 inch or 150 inch fuel may be used in ABWR. The bundle then can be further l
described axially from Table 12.2-1, pg 12.2-10 which gives the axial variation along the length of the bundle. Please note there is a typo in this table and the last value in the table should be 0.02928 and not 0.2928. Table 1 is provided to show total relative exposure compared to the power values in Table 12.2-1.
4.
Since the power in watts in each axial volume is known, the values in Table 12.2-3 can be used to calculate the spectral Mev/sec at 1 day or 1 week after shutdown. One day is the minimum fuel handling time, and one week is more typical of when fuel handling would occur.
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t Tsble 1. Comparison Power to Exposure Height Relative Table 12.-2 Values Exposure Power Relative Power 381.000 0.82930 0.18120 0.28332-365.130 1.02090 0.35130 0.54928 349.250 1.08010 0.48770 0.76255 333.380 1.11730 0.58730 0.91828 317.500 1.14320 0.65700 1.02726 301.630 1.15430 0.70520 1.10262 285.750 1.15650 0.73890 1.15531 269.880 1.15540 0.76300 1.19300 254.000 1.15620 0.78080 1.22083 238.130 1.16450 0.79390 1.24131 222.250 1.18780 0.80290 1.25538 206.380 1.27820 0.80680 1.26148 190.500 1.24200 0.80280 1.25523 174.630 1.22510 0.77070 1.20504 158.750 1.20490 0.76340 1.19362 142.880 1.17940 0.76260 1.19237 127.000 1.14580 0.76430 1.19503 111.130 i
1.09940 0.76490 1.19597 95.250 1.03320 0.76020 1.18862 79.375 0.93724 0.74460 1.16423 63.500 0.79903 0.70910 1.10872 47.625 0.60459 0.64050 1.00146 31.750 0.34551 0.18120 0.28332 15.875 L
0.03077 0.02928 0.04578 L
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