ML20092M954
| ML20092M954 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 02/24/1992 |
| From: | Woodard J SOUTHERN NUCLEAR OPERATING CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9202280248 | |
| Download: ML20092M954 (5) | |
Text
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we,orn usew omsno compwy IO!.I oMeCC n3t 1 a*!Ib
.Beagwn. A% tera JLN1 1rlephane N5 BC.B bote L
1 o, % ,o ,a Southern Nudem Operating Company
$([7.%,$2 February 24, 1992 I' "' " '" " ' " "
- I'C W " "
Docket No. 50-364 U. S. Nuclear Regulatory Conunission NITN: Document Control Desk Washington, DC 20555 Joseph bl. Farley Nuclear Plant Unit 2 Radial Peaking F_n.ctor Limit Report ,
Gentlemen:
Enclosed is the Radial Peaking Factor Limit Report for Cycle 9 of Unit 2. This reoort is provided in accordance with Paragraph 6.9.1.11 of the Unit 2 Technical Specifications. Also enclosed is c copy of the elevation dependent peaking factor versus core height graph for Cycle 9 of Unit 2, which is being submitted in support of the subject report.
The enclosed Radial Peaking Factor Limit Report was evaluated using the Power Shape Sensitivity hiodel (PSSht) screening process to ensure that the cosine shape remains the limiting power distribution in the large break loss of Coolant Accident (LOCA) analysis. (Reference WCAP 12935, hiay 1991.) The PSShi process climinates the need for the currently applied penalty factor on the F,,(z) surveillance data.
If you have any questions, please advise.
Respectfully submitted, t
kNA\ \
Jc D. Voodard
. JDW/h10E/AA: map Enclosures cc: hir. S. D. Ebneter hir. S. T. Iloffman hir. G. F. hiaxwell
'I 80 L G i ;
I 920228024e 920224 '
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_ _ _ _ . _ _. _ _ - . .- _ . . _ ._ -_ _ _ __ _ _ _ _ _ _ . _ _ . _ _ _ . . _ _ . ____...m.______._.__.___
- i. l TABLE 1 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 2 Technical Specifications.
The F,y limits for RATED THERMAL F0WER within specified core planes for Cycle 9 shall be ,
For val'? AGE 5 fuel P
- 1. F iets than or equal to 2.400 for all core plaries containing Bank "0" control rods.
- 2. For all unrodded core planes:
P F less than or equal to 1940 up to core elevations of 4 7 f t.
RTP F less than or equal to 1.810 for core elevations above 4.7 ft.
For Low-Parasiti' (LOPAR) fuel P
- 1. F less the,i or equal to 2 300 for all core planes containing Bank "D" control rods.
- 2. For all unrodded core planes:
p 0TP less than or equal to 1.855 up to core elevations of 4 7 ft.
P F less than or equal to 1 770 for core elevations above 4.7 ft.
f* .
TABLE 1 (continued)
RADIAL PEAKING FACTOR LIMIT REPORT These f,y (z) limits are used to confirm that the heat flux hot channel factor Fq(a) will be limited to the Technical Specification values oft VANTAGE 5 fuelt f q(a) 5 [2 )(K (2)] f or P > 0 5 and.
Fq(a) 5 4 90 (K(a)) for P 5 0 5 i
Low-Parasitic fuel (LOPAR) : 3 fq (2) 5 [f)(K (z)) f or P > 0 5 and, f q(2) 14.64 [K(a)) for P 5 0 5 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 Di.;tribution Control and Load Following Procedures."
WCAP-8385. september 1974 Therefore, these r,y limits provide assurance that the initial conditions assumed ih the LOCA analysis are met and the ECCS acceptance criterion limit of 2200'F for peak clad temperature is not exceeded.
~ - . - _ _ . . . . _ _ . _ _ . - , , - . _. - _ . . . _ . . _ -_ - ~ . . _ . _ _ _ _ . _ - _ _ _ _ _ _ _ _ . =
FIGURE 1 VANTAO' 5 MAXIMUM (FOT x Prol) VERSUS CORE HEIGHT DURING NORM Al. OPERATION 2.5 . . -
i
+ N 2.4
%- ~
4
.. . < ,4
, + 4 4 +4 +
. .. .. e . .
4- 4 2.3 _ . . . .
. s e
2.2 . . .... .. _ .
I 4 1
- i
,= .. .-- m.. .. .... j
+
-.-. . .+.
. t
-.. . . . . . .. - - .1. 4 ., c 1.9 . _
g at s==
1.8 =
0 . ..._. . _ . . .. . _ . . _ . . ._ _ . . .
k ._... ,-._, . . , . . . . . . , . . . . . , _ _ _ . . . - _ _ . ,
m 1.7 3 _ _ _ . _ _ _. ._ ___. ._. . .. ... _ _ . . ._
3 . . . . . . . _ . .. . . . - -
- 16 g . _ _ . _.._..._ .
__. . . . - . - _. _ . . ~.. . _ , .. ,
. . . . - - - - ....- . ~. _ . _. .. . .-
1.$
. ~. _
m ~ , ,
-......~,
1.4 _ . . _ . .
, . . _ _ _ . __ . . _ . _ . - . . _ .~.. ... _ _. . _ .
.._ . ._ _ ._-.. . _ . ~ . .-_ _ _ .. .~. .. .
1.3 _ . _ . _ . . . _ _ _ _ . _ _ . _..._ _ _ . .. - _ - . _ __ _. .
CORT I4EIGg.T 7xY tivli.
12 --
.,-- BELOW 4.7 FT. 1.940 - -
AB0VE 4.7 FT. 1.810 .._ . .-
1.1 - . . _. _ _ _ . . _ _ _ _ .. . _. - .- .
, e m.. . .
. . . _ . - . . . . _ __=*+ig.,_.. _ _ _ - . _.. . ._. . - _ .
'O 2 4 6 8 10 '2 CORE HEIGHT (FEET)
.7~ ..-v w y.-.e-,. ,rui, ., ._.m._,%- , ,. , ...+-..,.1.. , _ , , . - - - - , . . - _ - - , = -
FIGURE 2 )
4 LOPAR MAXIMUM (FQT x Prel) VERSUS CORE HEIGHT t 1
DURING NORM AL OPERATION 2.4 ;
23 *
+ +. ... **< N+
N N' .
2'2 .. '. . _: -
N 2.1 ._ .- .... . . .
w am .
2.0 . . . . . ..
1,9
~
v
. . , ... . . . _ . - - . . .. ~
' 1.8
- . ._ _.._ . _ _ _ . .. . . _ _ -. . +
O W 1*E w.'... . .
- 3 . .
3 . - . . . . . . . . . . . . . . - .. . _ - .. . . . . ..
2 1.6 . . . . . . . . .. . . . . . . .
4 1 . -.. .. . - . . - . .
1.5 .
1,4 -
1.3 ,
l 12 CORE HEIGHT FXi LIVll.
- n- :--' BELOW 4.7 FT. 1.855 1.770 ABOVE 4.7 Fi.
1.1 -
1'0 l- 0 2 4 6 8 'O '2 CORE HEiGwi (FEET) i s l
l