ML20128H049

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Plan (VEGP) Unit 2 Cycle 6 COLR
ML20128H049
Person / Time
Site: Vogtle  Southern Nuclear icon.png
Issue date: 09/30/1996
From:
GEORGIA POWER CO.
To:
Shared Package
ML20128G993 List:
References
NUDOCS 9610090221
Download: ML20128H049 (24)
v • d • e


Text

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V0GTLE ELECTRIC GENERATING PLANT (VEGP) UNIT 2 CYCLE 6 CORE OPERATING LIMITS REPORT September 1996 l

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I 9610090221 961004 PDR ADOCK 05000424 P PDR

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V0GTLE ELECTRIC GENERATING PLANT (VEGP) UNIT 2 CYCLE 6 I CORE OPERATING LIMITS REPORT l

' 1996 J

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COLR for VEGP UNIT 2 CYCLE 6 l

1.0 CORE OPERATING LIMITS REPORT This Core Operating Limits Report (COLR) for VEGP UNIT 2 CYCLE 6 has been prepared in accordance with the requirements of Technical Specification 6.8.1.6.

The Technical Specifications affected by this report are listed below:

3/4.1.1.1 SHUTD0'4N MARGIN - MODES 1 and 2 3/4.1.1.2 SHUTDOWN MARGIN - MODES 3, 4 and 5 1

3/4.1.1.3 Moderator Temperature Coefficient 3/4.1.3.5 Shutdown Rod Insertion Limit .

1 3/4.1.3.6 Control Rod Insertion Limits 3/4.2.1 Axial Flux Difference 3/4.2.2 Heat Flux Hot Channel Factor - Fo(Z) j 3/4.2.3 NuclearEnthalpyRiseHotChannelFactor-Fh 3ltl,9.Itl Fue l Sfbrsfc fos / &n >, Concen baIibn Fue I Am>,1fv .20ia9e 3/A. 7.15 2 2-PAGE 1 of ,14'

i COLR for VEGP UNIT 2 CYCLE 6 2.0 OPERATING LIMITS The :ycle-specific parameter limits for the specifications listed in Section 1.0

are presented in the following subsections. These limits have been developed
using the NRC-approved methodologies specified in Technical Specification 6.8.1.6.

2.1 SHUTDOWN MARGIN - MODES 1 AND 2 (Specification 3/4.1.1.1) l 2.1.1 The SHUTDOWN MARGIN shall be greater than or equal to 1.3% Ak/k.

i

! 2.2 SHUTDOWN MARGIN - MODES 3. 4 AND 5 (Specification 3/4.1.1.2) 1

{ 2.2.1 The SHUTDOWN MARGIN shall be greater than or equal to the limits j shown in Figures 1 and 2.

2.3 Moderator Temoerature Coefficient (Specification 3/4.1.1.3) 2.3.1 The Moderator Temperature Coefficient (MTC) limits are:

The BOL/AR0/HZP - MTC shall be less positive than +0.7 x 10

Ak/k/ F for power levels up to 70% RTP with a linear ramp to 0 Ak/k/ F at 100% RTP.

l The EOL/AR0/RTP-MTC shall be less negative than -5.5 x 10

Ak/k/*F.* ,

2.3.2 The MTC Surveillance limit is:

The 300 ppm /AR0/RTP-MTC should be less negative than or equal to

-4.75 x 10 Ak/k/ F.*

where: BOL stands for Beginning of Cycle Life ARO stands for All Rods Out HZP stands for Hot Zero THERMAL POWER E0L stands for End of Cycle Life RTP stands for RATED THERMAL POWER 4

2.4 Shutdown Rod Insertion limit (Specification 3/4.1.3.5) 2.4.1 The shutdown rods shall be withdrawn to a position greater than or equal to 225 steps.

2.5 Control Rod Insertion limits (Specification 3/4.1.3.6) 2.5.1 The contral rod banks shall be limited in physical insertion as shown in Figure 3.

  • Applicable for full-power T-average of 586.4 F.  %

PAGE 2 0F 4

COLR for VEGP UNIT 2 CYCLE 6 2.6 Axial Flux Difference (Specification 3/4.2.1)

(RA0C methodology}

2.6.1 The Axial Flux Difference (AFD) Acceptable Operation Limits are provided in Figure 4.

2.7 Heat Flux Hot Channel Factor - F,(Z) (Specification 3/4.2.2)

(Fo methodology}

RTP i Fo 2.7.1 Fa (Z) s

  • K(Z) for P > 0.5 P

Fa (Z) s

  • K(Z) for P s 0.5

0.5 where

P - THERMAL POWER RATED THERMAL POWER 2.7.2 F,RTP= 2.50 2.7.3 K(Z) is provided in Figure 5.

2.7.4 Fh(2) s for P > 0.5 P

  • W(Z)

Fh(Z) s for P s 0.5 0.5

  • W(Z) 2.7.5 W(Z) values are provided in Figures 6 through 9.

22 PAGE 3 of 1 r

1 COLR for VEGP UNIT 2 CYCLE 6 C

2.7.6 The F,(Z) penalty factors are provided in Table 1.

2.8 Nuclear Enthalov Rise Hot Channel Factor - Fy, (Specification 3/4.2.3) 2.8.1 F@g sFRTP * (1 + pp,9 * (i_p))

where: P - THERMAL POWER RATED THERMAL POWER 2.8.2a FhTP - 1.53 for LOPAR fuel, and 2.8.2b FhTP = 1.65 for VANTAGE 5 fuel 2.8.3 PF3 , = 0.3 for LOPAR and VANTAGE 5 fuel l

t i

k : \wp \ wogt le \COLR .U2 9.%

PAGE 4 of 14'

, _ _ _ . . _ . - - . _ _ _ _ _ _ _ . - - . _ _ _ _ . _ _ _ _ . . _ _ . . . . _ _ _ . _ _ ____-__.-___-_m..

l COLR for VEGP UNIT 2 CYCLE 6 TABLE 1  :

1 Fj(Z) PENALTY FACTOR l i

C Cycle F (Z)

Burnup Penalty (MWD /MTV) Factor 30 1.028 150 1.028 l 574 1.039 997 1.043 1633 1.041 l l 1844 1.033 2268 1.026 2692 1.025 3115 1.025 3539 1.023 l 3963 1.021 I 4174 1.020 Notes:

1. The Penalty Factor, to be applied to Ff(Z) in accordance with surveillance i requirement 4.2.2.2.f, is the maximum factor by which Fl(Z) is expected to increase over a 39 EFPD interval (surveillance interval of 31 EFPD plus the maximum allowable extension not to exceed 25% :f the surveillance interval pler F (Z) Technical was determined.Specification 4.0.2) starting from the burnup at which the
2. Linear interpolation is adequate for intermediate cycle burnups.
3. For all cycle burnups outside the range of the table, a penalty factor of 1.0200 shall be used.

O PAGE 5 of R

- _ _ _. _ __ _ _ _. __ _ ~ _ _ -

l l COLR FOR VEGP UNIT 2 CYCLE 6 l l

l l

5.00

$ 4.00

$ ACCEPTABLE 8 OPERATING 8

REGION S

h 3,00 b z

{ (1600,2.25) 0 2.00 .

E u)

O UNACCEPTABLE G s OPERATING D (950,1.30) REGION 8 1.00 x

0.00 0 500 1000 1500 2000 2500 21751 RCS BORON CONCENTRATION (ppm)

FIGURE 1 REQUIRED SHUTDOWN MARGIN FOR MODES 3 AND 4 (MODE 4 WITH AT LEAST ONE REACTOR COOLANT PUMP RUNNING) 2 7-PAGE 6 of 44'

COLR FOR VEGP UNIT 2 CYCLE 6 i

5.00 (2500,4.90)

J

. $ 4.00

$ ACCEPTABLE g OPERATING e REGION 8.

h 3.00 i

E (1250,2.85) z 3

y 2.00 Y

5

O UNACCEPTABLE 4 E OPERATING y j REGION a w 1.00 l

[ (460,1.00) 1 0 500 1000 1500 2000 2500 21751 RCS BORON CONCENTRATION (ppm)

FIGURE 2 REQUIRED SHUTDOWN MARGIN FOR MODES 4 AND 5 (MODE 4 WITH NO REACTOR COOLANT PUMPS RUNNING) 2>

PAGE 7 of J4

COLR FOR VEGP UNIT 2 CYCLE 6 (Fully Withdrawn *)

4 28.0 %,225) # l 22

/ / (78.0 %,225) j' J

[ BANK B [

J A f 180 I

7 160 (100 %,161) 8 / /

1 / /

8. [ BANK C [

i z 120

/ /

9 4[ }g o 100

/ /

/ /

/l /

$ [ [ BANK D 60

/ /

40 f(0%,46) [

/

20 'f i /

(30.2%, 0)[ l 0 20 40 60 80 100 POWER (percent of rated thermal power)

  • Fully wdhdrawn shall be the condition where control rods are at a position within the interval 2225 and 5231 steps withdrawn.

Note: The Rod Bank Insertion Limits are based on the control bank wdhdrawal sequence A, B, C, D and a control bank tip-to-tip distance of 115 steps.

FIGURE 3 ROD BANK INSERTION LIMITS VERSUS THERMAL POWER 21 PAGE 8 of)4'

COLR FOR VEGP UNIT 2 CYCLE 6 1

140 120 e (-20,100) (+10,100)

$ 100 UNACCEPTABLE UNACCEPTABLE E

a H 80

!, /

r

\

E ACCEPTABLE g 60 m

9:,

/ \

f \

$ (-35, 50) (+26, 50) 3 0 40 20 0

-50 -40 -30 -20 -10 0 10 20 30 40 50 AXIAL FLUX DIFFERENCE (percent Al )

FIGURE 4 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER FOR RAOC 2y PAGE 9 of J4'

1 COLR FOR VEGP UNIT 2 CYCLE 6 l l

l l

1.40 --

1.20 0

5? ,

u. 1.00 i e

z - l 2 l h 0.80 0

_N

id 0.60 Fo = 2.50 l z CORE g 0.40 HEIGHT K(Z) gir 0.000 1.000 6.000 1.000 12.000 0.925 0.20 0

0 2.0 4.0 6.0 8.0 10.0 12.0 CORE HEIGHT (ft)

FIGURE 5 K(Z) - NORMALIZED FO (Z) AS A FUNCTION OF CORE HEIGHT 2L PAGE 10 of;14'

COLR FOR VEGP UNIT 2 CYCLE 6 Axial Elevatson BOL Point (feet) W(2) 1.60 1 12.00 1.0000 2 11.80 1.0000 3 11.60 1.0000 4 11.40 1.0000 5 11,20 1.0000 6 11.00 1.0000 7 10.80 1.0000 8 10.60 1.0000 l 1.5C

  • 9 10.40 1.0000 10 1020 1.0000 11 10.00 1.2793 12 9.80 1.2637 13 9.60 1.2522 14 9.40 1.2408 15 9.20 1.2282 16 9.00 1.2140 1.4C 17 8.80 1.2089 18 8.60 1.2097 19 8.40 1.2114 20 8.20 1.2166 21 8.00 1.2200

^ A 22 7.80 1.2200 N

23 7.60 1.2178 a 24 7.40 1.2132 3 1.30 25 7.20 1.2065 A 26 7.00 1.1981 a

' ' 27 6.80 1.1880 i 28 6.60 1.1770 "L A 2a 6.40 1.1660 A SJ 6.20 1.1545

& 5 L.2C .

aj y 33 5.60 1.1488 A 4 34 5.40 1.1562 l& aA i AA A -

35 5.20 1.1680

" 36 5.00 1.1797 37 4.80 1.1902 38 4 60 1.1999 l 39 4.40 1.2085 1.10 40 4.20 1.2157

41 4.00 1.2220 i I 42 3.80 1.2263 l l 43 3.60 1.2302 44 3.40 1.2363 45 3.20 1.2428 l

l 46 3.00 1.2491 l 47 2.80 1.2625 1.00 l 48 2.60 1.2847 0 2 4 6 8 13 12 49 2.40 1.3073 50 2.20 1.3296 51 2.00 1.3515 CORE HEIGHT (feet) 52 5

jj j.0000

.gggg 54 1.40 1.0000 55 1.20 1.0000 This figure is referred to by Technical 56 1.00 1.0000 Specifications 4 2.2.2d,83/4 2.2 ,

59 0.40 1.0000 60 0.20 1.0000 61 0.00 1.0000

  • Top and Bottom 15% Excluded per Tectuucai sgc.non 4.22.2 FIGURE 6 2L RAOC W(Z) AT 150 MWD /MTU PAGE 11 of)4'

I COLR FOR VEGP UNIT 2 CYCLE 6 l

, Axial Elevation MOL-1 i Point (feet) W(z)  !

12.00 1.0000 1.60 .

1 2 11.80 1.0000 3 11.60 1.0000 4 11.40 1.0000 5 11.20 1.0000 6 11.00 1.0000 7 10.80 1.0000 8 10.60 1.0000 1.50

  • 9 10.40 1.0000 10 10.20 1.0000 11 10.00 13303 12 9.80 13018 13 9.60 1.2744 14 9.40 1.2468 15 9.20 1.2322 16 9.00 1.2165 1.40 17 8.80 1.2064 18 8.60 1.2063 19 8.40 1.2069 20 8.20 1.2104 a 21 8.00 1.2120 a 22 7.80 1.2104 A

g 23 7.60 1.2067

- i i 24 7.40 1.2008 3

- 30 ---

25 7.20 1.1929 A 26 7.00 1.1834

' 27 6.80 1.1723 A 28 6.60 1.1604

' A* 29 6.40 1.1487 A 30 6.20 1.1359 a 31 6.00 1.1373 k 5.80 1.1m 1*20 A A-32 33 5.60 1.1289 34 5.40 1.1423 A

!A A

' 35 36 37 5.20 5.00 4.80 1.1547 1.1657 1.1763 M' 38 4.60 1.1859 39 4.40 1.1945 i 1.10 40 4.20 1.2019 41 4.00 1.2079 42 3.80 1.2132 i

43 3.60 1.2186 44 3.40 1.2244 45 3.20 1.2334 46 3.00 1.2406 47 2.80 1.2546 1.00 48 2.60 1.2792 0 2 4 6 8 10 12 49 2.40 13017 50 2.20 1.3239 51 2.00 13460 CORE HEIGHT (feet) y j l@

54 1.40 1.0000 55 1.20 1.0000 56 1.00 1.0000 This figure is referred to by Technical 57 0.80 1.0000 Speofications 4.2.2.2d. B3/4.2.2

  • 58 0.60 1.0000 59 0.40 1.0000 60 0.20 1.0000 61 0.00 1.0000
  • Top and Bottom 15% Enduded per FIGURE 7 2 2-RACC W(Z) AT 4000 MWD /MTU PAGE 12 of,14~

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1 COLR FOR VEGP UNIT 2 CYCLE 6 Axial Elevanon MOL2 1

' Point (feeti W(r) 1 12.00 1.0000 1.60

  • 2 11.80 1.0000 3 11.60 1.0000 1 4 11.40 1.0000 5 1120 1.0000 6 11.00 1.0000 7 10.80 1.0000 i
  • 8 10.60 1.0000 1'50
  • 9 10.40 1.0000

)

  • 10 10.20 1.0000 J 11 10.00 1.2476 i- 12 9.80 1.2311 13 9.60 1.2166

. 14 9.40 1.2056 d

15 9.20 1.1937 16 9.00 1.1894 1.40 17 8.80 1.1892 18 8.60 1.1899 19 8.40 1.2000

! 20 8.20 1.2109

, 21 8.00 1.2192 4

22 7.80 1.224$

^

23 7.60 1.2270

  • N 24 7.40 1.2268

- 1.3C n 25 7.20 1.2243 3 & 26 7.00 1.2194

& 27 6.80 1.2125

, A. 28 6.60 1.2038 l n 29 6.40 1.1939

& 30 6.20 1.1840 1

-Mlk b ' A 31 6.00 1.1721 A Ab & 32 5.80 1.1620 1.20 4 6 g 33 5.60 1.1618 4 & 34 5.40 1.1738

' " 35 5.20 1.1841

" 36 5.00 1.1939 37 4.80 1.2040 38 4.60 1.2130 39 4.40 1.2204 1.10 40 4.20 1.2262 41 4.00 1.2304 42 3.80 1.2330 43 3.60 1.2339 44 3.40 1.2337 45 3.20 1.2351 46 3.00 1.2407 47 2.80 1.2506 1.00 48 2.60 1.2623 0 2 4 6 8 10 12 49 2.40 1.2732 50 2.20 1.2837 51 2.00 1.2941 52 1.80 1.0000 CORE HEIGHT (feet) 53 1.60 1.0000 54 1.40 1.0000 55 120 1.0000 56 1.00 1.0000 57 0.80 1.0000 This figure is referred to by Technical

  • 58 0.60 1.0000 Spoofications 4.2.2.2d. B3/4.2.2
  • 59 0.40 1.0000 60 020 1.0000 61 0.00 1.0000
  • Top and Bottom 15% Enduded per Tedvuca' Specdicanon 4.212 FIGURE 8 yL RAOC W(Z) AT 11000 MWD /MTU PAGE 13 of.A4'

COLR FOR VEGP UNIT 2 CYCLE 6 Axial Elevanon EOL Point (feet) W(zl

-*60 1 12.00 1.0000 2 11.80 1.0000 3 11.60 1.0000 4 11.40 1.0000 5 11.20 1.0000 6 11.00 1.0000 7 10.80 1.0000 li 10.60 1.0000 1.50

  • 4 10.40 1.0000 10 10.20 1.0000 11 10.00 1.1783 l 12 9.80 1.1757 13 9.60 1.1772 14 9.40 1.1842 15 9.20 1.1869 1.40 16 9.00 1.1902 17 8.80 1.2023 18 8.60 1.2216 19 8.40 1.2391

_, ,. 20 8.20 1.2540 21 8.00 1.2701 22 7.80 1J848 g

23 7.60 1.2948 2 24 7.40 3; i.30 -

13012

,. a 25 7.20 13039 n A A

& 26 7.00 13032 A a k Ab o A 27 28 6.80 6.60 1.2994 1.2927 V a a 29 30 6.40 6.20 1.2834 i

1.2719 l 31 6.00 1.2571 1*20 -

^ 32 5.80 1.2443 '

a 33 5.60 1.2383 I

, 34 5.40 1.2374 35 5.20 1.2435

- 36 5.00 1.2502 37 4.80 1.2560 38 4.60 1.2617 39 4.40 1.2648 1.10 40 4.20 1.2655 41 4.00 1.2638 42 3.80 1.2599 l 43 3.60 1.2536 44 3.40 1.2454 l 45 3.20 1.2407 l

.% 3.00 1.2365 1.00 47 2.80 1.2390 0 2

- 48 2.60 1.2504 4 6 8 10 12 49 2.40 1.2613 50 2.20 1.2720 51 2.00 1.2828 52 1.80 1.0000 COr4E HEIGHT (feet) 53 1.60 1.0000 54 1.40 1.0000 55 1.20 1.0000 56 1.00 1.0000 This figure is referred to by Tschnical 57 0.80 1.0000 Speofeations 4 2.2.2d. B3/4.2.2

  • 58 0.60 1.0000 59 0.40 1.0000 60 0.20 1.0000 61 0.00 1.0000 Top and Bottom 15% Excluded per Techrucal Spmhcanon 4.212 72 RAOC W(Z) AT 19000 MWD /MTU PAGE 14 otA(

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COLR FOR VOGTLE ELECTRIC GENERATING PLANT - UNIT 2 FUEL STORAGE 2.9 Euel Storage Pool Boron Concentration (Specification 3.7.17) 2.9.1 The boron concentration shall be greater than or equal to 1250 ppm.

i 2.10 Fuel Assembly Storage (Specification 3.7.18) 2.10.1 All Cell Storage Storage of 17x17 fuel assemblies in any cell location. Fuel assemblies must have an initial nominal enrichment no greater than 1.82 weight percent U-235 or satisfy a minimum burnup requirement shown in table 2 and figure 10.

l 2.10.2 3-out-of-4 Checkerboard Storage Storage of 17x17 fuel assemblies in a 3-out-of-4 checkerboard arrangement with empty cells. Fuel assemblies must have an initial nominal enrichment no greater than 2.54 weight percent U-235 or satisfy a minimum burnup requirement shown in table 2 and figure 10. A 3-out-of-4 checkerboard with empty cells shown means that no more than 3 fuel assemblies can occupy any 2x2 matrix of storage cells. Figure 12 shows two examples of acceptable 3-out-of-4 checkerboard patterns.

2.10.3 2-out-of-4 Checkerboard Storage Storage of 17x17 fuel assemblies in a 2-out-of-4 checkerboard arrangement with empty cells. Fuel assemblies must have an initial maximum enrichment no greater than 5.0 weight percent U-235, A 2-out-of-4 checkerboard with empty cells means that no 2 fuel assemblies may be stored face adjacent. Fuel assemblies may be stored r corner adjacent. Figure 13 shows the 2-out-of-4 checkerboard pattern.

2.10.4 3x3 Checkerboard Storage Storage of Westinghouse 17x17 fuel assemblies with nominal enrichment no greater than 4.0 weight percent U-235 (equivalent enrichment with IFBA credit, shown in table 3 and figure 11)in the center of a 3x3 checkerboard shown in figure 13. The ,

surrounding fuel assemblies must have an initial nominal enrichment no greater than l 1,48 weight percent U-235 or satisfy a minimum burnup requirement shown in table l 2 and figure 10. i Page 15 of 22 l

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COLR FOR VOGTLE ELECTRIC GENERATING PLANT - UNIT 2 FUEL STORAGE 2.10.5 Checkerboard Storage Interface i More than one storage pattern may be utilized in the fuel storage pool at the same time.

2.10.5.1 Interfaces Between All Cell,3-out-of-4, and/or 2-out-of-4 Storage Patterns l At the interfaces between all cell, 3-out-of-4, and/or 2-out-of-4 storage patterns, every l 2x2 array of assemblies must meet the storage requirements for the assembly in that 2x2 i array with the most restrictive storage requirements. Alternately, a row of empty storage cells may be used to interface between storage patterns. 1 2.10.5.2 Interfaces Between the 3x3 Storage Pattern and All Other Storage Patterns The interface between the 3x3 storage pattern and all other storage patterns shall consist  ;

of a row of empty storage cells. l t

I b

f f

1 l

l

)

Page 16 of 22 i

COLR FOR VEGP UNIT 2 FUEL STORAGE TABLE 2. MINIMUM BURNUP REQUIREMENTS FOR VOGTLE UNIT 2

~

3-out-of-4 2-out of.4 3x3 Nominal All Cell Checkerboard Checkerboard Checkerboard

. Enrichment Burnup Burnup Burnup Burnup (*)  ;

(w/o 235 0) (MWD /MTU) (MWD /MTU) I (MWD /MTU) (MWD /MTU) 1.48 0 0 0 0 1.82 0 0 0 6912 2.00 2713 0 0 10201 2.20 5580 0 0 13603 2.40 8309 0 0 16774

)

2.54 10144 0 0 18877 2.60 10913 619 0 19752 2.70 12162 1598 0 21159 2.80 13410 2576 0 22566 3.00 15811 4401 0  ; 25246 3.20 18130 6135 0 27815  !

3.40 20378 7812 0 30296 f

3.60 22566 9457 0 32706 l

3.80 24702 11090 0 35061 4.00 26795 12723 0 37371 4.20 28852 14361 0 39645 4.40 30878 16003 0 41886 4.60 32880 17640 0 44098 l 4.80 34859 19256 0 46276 5.00 36820 20828 0 48417

(*) Burnup required on surrounding fuel assemblies.

NOTE: There is no minimum burnup requirement for the 2-out-of-4 Checkerboard Storage Configuration for enrichments up to and including 5.0 weight percent U-235 (COLR Section 2.10.3).

PAGE 17 of 22

COLR FOR VEGP UNIT 2 FUEL STORAGE TABLE 3 3X3 CHLlKERBOARD MINIMUM IFBA REQUIREMENT FOR VOGTLE UNIT 2 Nominal IFBA IFBA Enrichment Requirement Requirement 4 (w/o 235 U) 1.0X 1.5X 4.00 0 0 4.20 10 7 4.40 19 13 4.60 27 18 4.80 36 24 5.00 44 30 i

PAGE 18 of 22

i

} I COLR FOR VEGP UNIT 2 FUEL STORAGE s 50000 ,

45000 '

All Cell Storage ,

. 3-out-of-4 Checkerboard ,

3x3 Checkerboard -

40000 '

, l 1 l

}

{ $

g 35000

/

/

2 ' /

j g ACCEPTABLE ,

j

/

i 3 30000 '

/

i j

2 w

' /

/ /

i

, Q. / j '

5 25000 ' >

x / >

/ /

25 , ,

E '

as 20000 E g . A, -

< i

/ ..

3 / ..-

if 15000 ,

f e '

> / ..

/ ..'

10000 ' '

, j ,

i / ..-

) '

5000 i i

/ -

UNACCEPTABLE -

r f ,

~

0 I ' '

1.4 1.8 2.2 2.6 3.0 3.4 3.8 4.2 4.6 5.0 Initial 235 U Enrichment (nominal w/c)

NOTE: There is no minimum bumup requirement for the 2-out-of-4 Checkerboard Storage Configuration for enrichments up to and including 5.0 weight percent U-235 (COLR Section 2.10.3).

FIGURE 10 VOGTLE UNIT 2 BURNUP CREDIT REQUIREMENTS PAGE 19 of 22

1 COLR FOR VEGP UNIT 2 FUEL STORAGE i i 1

48 i j

/

40 ,

i ACCEPTABLE /

r

/

l A 39-Zi /

E

/ ,,

1.0X IFBA Loadina [ /

J k24 --

1.5X IFBA Loading / /

g / / l e / /

/

g /

E l 16

/ /

/ '/-

UNACCEPTABLE -

r

/ /

/

i g ) /

I

/ /

I

//

. //

4 0

f

4.00 4.20 4.40 4.60 4.80 5.00 U235 Enrichment (nominal w/o) 1 j FIGURE 11 VOGTLE UNIT 2 3x3 CHECKERBOARD IFBA REQUIREMENT PAGE 20 of 22

(

4

COLR FOR VEGP UNIT 2 FUEL STORAGE Z Z ZZZZ K Z 1

i 4

l E Z

'E Z Z Z Z Z Empty Storage Cell Fuel Assembly in Storage Cell l

l 3-out-of-4 Checkerboard Storage l

l 1

FIGURE 12 VOGTLE UNIT 2 TYPICAL ACCEPTABLE PATTERNS FOR 3-OUT-OF-4  !

CHECKERBOARD STORAGE PAGE 21 of 22 l

l l

l J

h i

j COLR FOR VEGP UNIT 2 FUEL STORAGE 1

s i

E Z l

t E Z Empty Storage Cell Fuel Assembly in Storage Cell l 2-out-of-4 Checkerboard Storage  !

i i l

l O O I .

l l l I '

i t

4 l

l o -

o 1

Surrounding Fuel Assembly A Middle Fuel Assembly in Storage Cell (_) in Storage Cell l

i j 3X3 Checkerboard Storage I

i.

l FIGURE 13 VOGTLE UNIT 2 2-OUT-OF-4 AND 3X3 CHECKERBOARD STORAGE CONFIGURATIONS PAGE 22 of 22 m

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