ML20246E040

Forwards Radial Peaking Factor Limit Rept for Cycle 10 of Unit 1 & Elevation Dependent Peaking Factor Vs Core Height Graph for Cycle 10

ML20246E040
Person / Time
Site:	Farley
Issue date:	08/22/1989
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 8908280374
Download: ML20246E040 (3)

Text

.

' Alabama Power Company

<0 inverness C ntir Parkway Post Office Box 1295 Birrrdngham, Alabama 35201 -

, Telephone 205 668-5581 W. G. Hairston, lll Senior Vice President Nuclear Operations Alabama Power

!?M SOUT%rn electrCSystorn August 22, 1989 Docket No 50-348 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 Gentlemen:

Joseph M. Farley Nuclear Plant Radial Peakina f actor Limit Report Enclosed is the Radial Peaking Factor Lim t Report for Cycle 10 of Unit 1.

This report is provided in accordance with Paragraph 6.9.1.11 of the Unit 1 Technical Specifications.

Also enclosed is a copy of the elevation dependent peaking factor versus core height graph for Cycle 10 of Unit I which is being submitted in support of the subject report.

If you have any questions, please contact this office.

Respectfully submitted,

(().

$r W. G. Hairston, 111 WGH,Ill:TMM/kdc Enclosures cc: Mr. S. D. Ebneter Mr. E. A. Reeves Mr. G. F. Maxwell pco' nr2m m@ 4 4

P L _ _ ___

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ENCLOSURE FARLEY UNIT 1 CYCLE 10 RADIAL PEAKING FACTOR LIMIT REPORT This Radial Peaking Factor Limit Report is provided in accordance with Paragraph 6.9.1.11 of the Joseph M. Farley Unit 1 Technical Specifications.

The Fxy limits for RATED THERMAL POWER within specified core planes for Cycle 10 shall be:

-RTP 1.

Fxy less than or equal to 2.310 for all core planes containing Bank "D

control rods.

2.

For all unrodded core planes:

RTP Fxy less than or equal to 1.770 up to core elevations of 4.7 ft.

RTP Fxy less than or equal to 1.745 for core elevations between 4.7 ft.

and 8.9 ft.

RTP Fxy less than or equal to 1.795 for core elevations at or above 8.9 ft These Fx (z) limits are used to confirm that the heat flux hot channel factor F (z) will be limited to the Technical Specification values of:

F (z) 5 [2.32/P][K(z)] for P > 0.5 and, q

F (z) s 4.64 [K(z)] for P 5 0.5 q

assuming the most limiting axial power distributions expected to result from the insertion and removal of Control Banks C and 0 during operation, including the accompanying variations in the axial xenon and power distributions as described in the " Power Distribution Control and Load following Procedures," WCAP-8385, September 1974.

Therefore, these Fxv limits provide assurance that the initial conditions assumed in the LOCA analysis are met and the ECC5 acceptance criterion limit of 22000F for peak clad temperature is not exceeded.

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' ENCLOSURE'.

g, MAXIMUM (Fo X PREL) VERSUS CORE HEIGHT T

DURING NORMAL OPERATION j:

2.4 g

l-l

~

~ '

r l

+

i 2.2 i

l l

g.

2.o g

I l-11

+ +

y

.lg 1 s

?

'i.s Il I.

I'l I

11 I

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l il-I

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l it I

d-i l11 I

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III I

III I

II11 I

I il I I III CORE HEIGHT FXY LIMIT BEton 4.7 r1.

1.770 l

iII 12 4.7 To s.s ri.

1.745 I I il AeovE s.s rT.

1.795 l

ljgi l

I lil I

I I li 1.0 6

to 12 CORE EIGHT-(rEET) 8 j

0 2

4 i

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