ML20151Y801
| ML20151Y801 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 01/31/1986 |
| From: | Randolph G UNION ELECTRIC CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| ULNRC-1251, NUDOCS 8602130163 | |
| Download: ML20151Y801 (3) | |
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sau UNION ELECTRIC COMPANY ULNRC 1251 con %nont January 31, 1986 utoatrf ncutin k
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Mr. James G. Keppler g' A-
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Administrator, Region III U. S. Nuclear Regulatory C.ommission 22JL Sh 799 Roosevelt Road m
Glen Ellyn, Illinois 60137 Docket No. STN 50-483
Dear Mr. Keppler:
As required by Technical Specification 6.9.1.9, this Callaway Cycle 2 Radial Peaking Factor Limit Report is forwarded for ogginformation.
Included are the Fx limitsforratedthermalpower(xEore) planes,and for all core planescontainingB5nk c ntrol rods and all unrodded the plot of predicted (F q. Rel) vs. axial core height with the limit envelope.
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G. L. Randolph Manager, Callaway Plant GLR /RDA/KRB/ crc Enclosures cc: Director of Nuclear Reactor Regulation Attention: Chief, Core Performance Branch U. S. Nuclear Regulatory Commission Washington, DC 20555 FEB 7 1986 8602130163 060131
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PDR ADOCK 05000403 P
PDR Moinno Address:RO. Box 620 Futton,MO65251
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Radial Peaking Factor Limit Report this Radial leaking Factor Limit kcport is provided in accordanct with lara raph 6.9.1.12 of the Callaway ';uclear 1lant 1echnical Specifications.
The F limits for RATED THERMAL ^PO.fER (3411 Mit) within specific core xy planes for Cycle 2 shall ben 1.
F less than or equal to 1.89 for all planes xy containing bank "D" control rods, and 2.
F less than or eg' al to' l.65 for all unrodded xy core planes.
These F,y(z) limits were used to confirm that the heat flux hot channel factor F (z) will be limited to the Technical Specification values of F (z) $ [
]'[K(s)) for P > 0.5 and.
g F (z) $ [4.64) [K(t)) for P f 0.5 assuming the most limiting axial power distributions expected to result from the insertion and removal of control banks B, C and 3 during operation, in-cluding the accompanying variatior.s in the axial xenon and power distributions as described in the " Power Distribution Control and Load Following Procedures",
i WCAF-8403, September,1974. Therefore, these F limits provide assurance that the initial conditions assumed in the-IcCA analNis are met, along with the ECCS acceptance criteria of 10CFR50.46 i
See Figure 1 for a plot of [F.Frd) vs. Axial Core Height.
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Maximum FgPg Versus Axial Height During Normal Core Operation 1
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