Text

Rev 1 to Vogtle Electric Generating Plant (VEGP) Unit 2 Cycle 5 Colr
	ML20117E719
Person / Time
Site:	Vogtle
Issue date:	08/31/1996
From:	; GEORGIA POWER CO.
To:	;
Shared Package
ML20117E722	List: ML20117E719; ML20117E910;
References
	NUDOCS 9609030047
	Download: ML20117E719 (16)
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, Vogtle Electric Generating Plant Unit I and Unit 2 Active Core Operating Limits Report List August 1996 I

Unit 1 Cycle 7 March 1996 l l

Unit 2 Cycle 5, Revision 1 August 1996 i

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i V0GTLE ELECTRIC GENERATING PLANT (VEGP) UNIT 2 CYCLE 5 CORE OPERATING LIMITS REPORT Revision I i

August 1996 l

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l COLR for VEGP UNIT 2 CYCLE 5 1.0 CORE OPERATING LINITS REPORT This Core Operating Limits Report (COLR) for VEGP UNIT 2 CYCLE 5 has been prepared in accordance with the requirements of Technical Specification i 6.8.1.6.

The Technical Specifications affected by this report are listed below:

[

3/4.1.1.1 SHUTDOWN MARGIN - MODES I and 2 3/4.1.1.2 SHUTDOWN MARGIN - MODES 3, 4 and 5 3/4.1.1.3 Moderator Temperature Coefficient 1 3/4.1.3.5 Shutdown Rod Insertion Limit 3/4.1.3.6 Control Rod Insertion Limits 3/4.2.1 Axial Flux Difference 1

3/4.2.2 Heat Flux Hot Channel Factor - F,(Z) 3/4.2.3 NuclearEnthalpyRiseHotChannelFactor-F6 I

O PAGE 1 of 14

COLR for VEGP UNIT 2 CYCLE 5 O

2.0 OPERATING LIMITS The cycle-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) 2.1.1 The SHUTDOWN MARGIN shall be greater than or equal to l.3% M /k.

2.2 SHUTDOWN MARGIN - MODES 3. 4 AND 5 (Specification 3/4.1.1.2) 2.2.1 The SHUTDOWN MARGIN shall be greater than or equal to the limits shown in Figures 1 and 2.

2.3 Moderator Tennerature 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-'

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

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

M/k/*F.*

2.3.2 The MTC Surveillance limit is:

The 300 pps/ARO/RTP-MTC should be less negative than or equal 'to

-4.75 x 10-* &/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 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 (Spe .ification 3/4.1.3.6) 2.5.1 The control rod banks shall be limited in physical insertion as shown in Figure 3.

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Applicable for full-power T-average of 586.4*F.

PAGE 2 0F 14

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- COLR for VEGP UNIT 2 CYCLE 5 2.6 Axial Flux Difference (Spe:1"ication 3/4.2.1)

(RAOC methodology)

) 2.6.1 The Axial 1%x Difference (AFD) Acceptable Operation Limits are provided in Figure 4.

4 2.7 Heat Flux Hot Channel Factor - F,(Z) (Specification 3/4.2.2) -

(F methodology}

2.7.1 F,(Z) s

K(Z) for P > 0.5 P

F,(Z) s

K(Z) for P s 0.5 0.5

^

where: P = THERMAL POWER RATED THERMAL P0t?FR 2.7.2 FRTP = 2.50 2.7.3 K(Z) is provided in Figitre 5.

2.7.4 Fh(Z) s for P > 0.5 P

W(Z)

Th(Z) s for P s 0.5 0.5

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

PAGE 3 of 14

COLR for VEGP UNIT 2 CYCLE 5 C

2.7.6 The F,(Z) ; enal / factors are provided in Table 1.

2.8 Nuclear Enthalov Rise Hot Channel Factor - FK (Specification 3/4.2.3) 2.8.1 F% s F,RTP* (1 + pp,, * (3_p))

l where: P = THERMAL POWER RATED THERMA! POWER 2.8.2a FR,TP = 1.55 for LOPAR fuel, and 2.8.2b F.R,TP =

1.65 for VANTAGE 5 fuel 2.8.3 PF,, =

0.3 for LOPAR and VANTAGE 5 fuel O

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kt\w9\vett1e\COLR.Ut PAGE 4 of 14

COLR for VEGP UNIT 2 CYCLE 5 O

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5.00 h 4.00

$8: ACCEPTABLE OPERATING

,$ REGION S

h 3.00 , 3.1b z

g (1600,2.25) 2

$ 2.00 O

@ UNACGhPTABLE' E s OPERATING D (950,1.30) REGION y 1.00 0.00 0 500 1000 1500 2000 2500 2175-1 RCS BORON CONCENTRATION (ppm)

FIGURE 1 REQUIRED SHUTDOWN MARGIN FOR MODES 3 AND 4 (MODE 4 WITH AT LEAST ONE REACTOR COOLANT PUMP RUNNING)

O PAGE 5 of 14

i COLR for VEGP UNIT 2 CYCLE 5 i

! 5.00 J (2500,4.90)

$ 4.00 J

$c ACCEPTABLE

. OPERATING

.i E REGION i &

i Z 5 3.00

$ (1250,2.85) i 2

z

! 3:

i 8

y 2.00

/

N i O UNACCEPTABLE 3 E OPERATING j REGION w

c 1.00 l (460,1.00) 1

)

l 0.00 1 0 500 1000 1500 2000 2500 l 2,7isi RCS BORON CONCENTRATION (ppm) i i

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

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PAGE 6 of 14

COLR for VEGP UNIT 2 CYCLE 5 (Fully Withdrawn *) !

O d28.0% 225)

/ / (78.0% 225)-

/ /

[ BANK B [

180 [

I I 160 (100 % 161) g / /

140 g

E

[ BANK C /

z 120 g

/ /

g 9 A }

k o 100 / /

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f /

$ / / 1

$ [ [ BANK D 60

/ /

40

/

20

/

0 I U'"' UI!

0 20 40 60 80 100 (Fuliy inserted)

POWER (percent of rated thermal power) '"

Fully withdrawn shall be the condition where control rods are at a position within the interval 2225 and s231 steps withdrawn.

FIGURE 3 ROD BANK INSERTION LIMITS VERSUS THERMAL POWER PAGE 7 of 14

COLR for VEGP UNIT 2 CYCLE 5 O

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

$ 100 UNACCEPTABLE UNACCEPTABLE 80 o

/

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q g } ACCEPTABLE v e f g

$ f \

E ( 35,50) (+26, 50) 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 PAGE 8 of 14

COLR for VEGP UNIT 2 CYCLE 5 1.40 1.20 8

b I 1.00 - =====memmii;;;;;;;;

@ """===========

2 f 0.80 Pu

.N_

id 0.60

! Fo- 2.50 CORE 0.40 HEIGHT K(Z)

@1 0.000 6.000 1.000 1.000 0.20 12.000 0.925 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 O

PAGE 9 of 14

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, COLR for VEGP UNIT 2 CYCLE 5 i

/'N !

~Q Axial Elevation BOL Point (feet) W(z) 1 12.00 1.0000 1.60 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

9 10.40 1.0000 1.50

10 1020 1.0000 11 10.00 1.1928 12 9.80- 1.1771 13 9.60 1.1724 14 9.40 1.1719 1

15 9.20 1.1844 16 9.00 1.2017 1.40 17 8.80 1.2194 18 8.60 1.2366 A 19 8.40 1.2513 g 20 8.20 1.2665

21 8.00 1.2795 22 7.80 1.2892 g 23 7.60 1.2%2 N n 24 7.40 13004 2.

25 g.3C a 7 =A 26 7.20 7.00 13020 13015

& a 27 6.80 12988 h A 28 6.60 1.2941

& -A i

* '- 29 6.40 1.2877 A g g 30 6.20 1.2798

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t Y A 31 32 6.00 5.80 1.2706 1.2598 1.2C 33 5.60 1.2482 g a 34 5.40 1.2364 g 35 5.20 1.2227 36 5.00 1.2155 37 4.80 1.2225 38 4.60 1.2354 39 4.40 1.2465 40 4.20 1.2564 1.1C 41 4.00 1.2649 42 3.80 1.2716 43 3.60 1.2774 44 3.40 1.2850 45 3.20 12946 46 3.00 13081 47 2.80 13262 1.00_ 48 2.60 1m 0 2 6 49 2.40 13654 4 8 10 12 50 2.20 13836 CORE HEIGHT (feet) 51 2.00 1.4015 52 1.80 1.0000 53 1.60 1.0000 54 1.40 1.0000 55 1.20 1.0000 56 1.00 1.0000 57 0.80 1.0000 This Agure is referred to by Technical 58 0.60 1.0000 Speel6 cations 4.2.2.2d. 83/4.2.2. 5 .

61 0.00 1D000 Top and Bottom 15% Exduded per O TechnicalSped6 canon 4.222 V Figure 6 RAOC W(z) at 150 MWD /MTU PAGE 10 of 14

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l COLR for VEGP UNIT 2 CYCLE 5 Axial Elevation MOL-1 Point (feet) W(z) 1 12.00 1.0000 i

1"60

2 11.80 12000 3 11.60 1.0000 4 11.40 1.0000 5 1120 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 1020 1.0000 l .

11 10.00 1.2135 l'

12 9.80 1.1889 13 9.60 1.1733 14 9.40 1.1871 15 9.20 1.1097 a 16 9.00 1.2097 1.4C 17 8.80 L2202 A 18 8.60 1.2301 19 8.40 1.2375 g 20 820 1.2430 l 21 8.00 1.2464 A 22 7.80 1.2477

- A 23 7.60 1.2471 a 24 7.40 12448 k*3C 3 A 25 7.20 12407 26 7.00 1.2353 A 27 6.80 1.2286 28 6.60 1.2207 29 6.40 1.2119 i /,- A hA 30 6.20 1.2037

( 1.2C A

A

,A

[ g n

a 31 32 33 6.00 5.80 5.60 1.1955 1.1871 L1772 n A AA 34 5.40 1.1670 A A 4 35 36 5.20 5.00 1.1715 1.1855 37 4.80 1.2001 38 4.60 1.2133 39 4.40 1.2256 1.1C 40 420 1.2364 41 4.00 1.2468 42 3.80 1.2575 43 3.60 1.2674 i 44 3.40 1.2767 l 45 3.20 1.2912 46 3.00 13055 47 2.80 13197 1.00 48 2.@ 13386 0 2 4 6 8 10 12 49 2.40 13628 50 220 13864 CORE HEIGHT (feet) 51 2.00 1.4090 52 1.80 1.0000 53 1.60 1.0000 54 1.40 1.0000 l

55 120 1.0000 56 1.00 1.0000 57 0.80 1.0000 This Agure is referred to by Technical

58 0.60 1.0000 Speciscations 4.2.2.2d, B3/4.2.2. 59 0.40 1.0000 1

60 0.20 1D000 61 0.00 1.0000 Q

V Figure 7 Top and Bottom 15% Exdudsd per Technial Sped 8 cation 4.2.2.2 RAOC W(z) at 4000 MWD /MTU PAGE 11 of 14

._. _ ___ _ _ . . _ _ _ . _ _ - _ _ . . _ . . _ . _ _ _ _ ~ _ . _ _ - ._ _ _ _ _ . _ .

,, COLR FOR VEGP UNIT 2 CYCLE 5 Axial Elevation Point (feet) W(z)

Set 1 8 W(z)

Set 28 W(z)

Set 3 8

1 12.00 1.0000 1.0000 1.0000

2 11.80 1.0000 1.0000 1.0000

3 11.60 1.0000 1.0000 1.0000

4 11.40 1.0000 1.0000 1.0000

5 11.20 1.0000 1.0000 1.0000

6 11.00 1.0000 1.0000 1.0000

'7 10.80 1.0000 1.0000 1.0000

8 10.60 1.0000 1.0000 1.0000

9 10.40 1.0000 1.0000 1.0000

10 10.20 1.0000 1.0000 1.0000 11 - 10.00 1.2356 1.2356 1.2356 12 9.00 1.2261 1.2261 1.2261 13 9.60 1.2211 1.2211 1.2211 14 9.40 1.2200 1.2200 1.2200 15 9.20 1.2186 1.2186 1.2186 16 9.00 1.2153 1.2153 1.2153 17 8.80 1.2133 1.2133 1.2133 18 8.60 1.2164 1.2164 1.2164 19 8.40 1.2231 1.2231 1.2231 20 8.20 1.2271 1.2271 1.2271 21 8.00 1.2284 1.2284 1.2284 !

22 7.80 1.2275 1.2275 1.2275 23 7.60 1.2241 1.2241 1.2241 24 7.40 1.2187 1.2187 1.2187 25 7.20 1.2112 1.2112 1.2112 26 7.00 1.2018 1.2018 1.2018 '

27 6.80 1.1918 1.1918 1.1918 28 6.60 1.1821 1.1821 1.1821 29 6.40 1.1723 1.1723 1.1723 30 6.20 1.1626 1.1626 1.1626 31 6.00 1.1502 1.2882 1.3572 O

32 5.80 1.1433 1.2805 1.3491 33 5.60 1.1480 1.2858 1.3546 34 5.40 1.1586 1.2976 1.3671 35 5.20 1.1681 1.3094 1.3795 36 5.00 1.1786 1.3200 1.3907 37 4.80 1.1870 1.3294 1.4007 38 4.60 1.1941 1.3374 1.4090 39 4.40 - 1.1999 1.3439 1.4159 40 4.20 1.2042 1.3487 1.4210 41 4.00 1.2076 1.3525 1.4250 42 3.80 1.2114 1.3568 1.4295 43 3.60 1.2152 1.3610 1.4339 44 3.40 1.2172 1.3633 1.4363 45 3.20 1.2201 1.3665 1.4397 46 3.00 1.2285 1.3759 1.4496 47 2.80 1.2419 1.3909 1.4654 48 2.60 1.2566 1.4074 1.4828 49 2.40 1.2704 1.4228 1.4991 50 2.20 1.2837 1.4377 1.5148 51 2.00 1.2966 1.4522 1.5300

'52 1.80 1.0000 1.0000 1.0000

'53 1.60 1.0000 1.0000 1.0000

54 1.40 1.0000 1.0000 1.0000

'55 1.20 1.0000 1.0000 1.0000

56 1.00 1.0000 1.0000 1.0000

'57 0.80 1.0000 1.0000 1.0000

'58 0.60 1.0000 1.0000 1.0000

59 0.40 1.0000 1.0000 1.0000

'60 0.20 1.0000 1.0000 1.0000

61 0.00 1.0000 1.0000 1.0000

Top and Bottom 15% Excluded per Technical Specification 4.2.2.2

Set 1 for 3% 5 (Measured AO Predcted AO) s + 3%

Set 2 for +3% < (Measured AO - Predcted AO) s + 6%

Set 3 for +6% < (Measured AO Prodcted AO) s 9%

FIGURE 8 RAOC W(Z) AT 10000 MWD /MTU PAGE 12 of 14 Revision 1

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'~ COLR FOR VEGP UNIT 2 CYCLE 5 Axial Elevation W(z)

Point (feet) W(z)

Set 1 8 Set 28 W(z)

Set 3 8

1 12.00 1.0000 1.0000

2 1.0000 11.80 1.0000 1.0000 1.0000

'3 11.60 1.0000 1.0000 1.0000

4 11.40 1.0000 1.0000

5 1.0000 11.20 1.0000 1.0000 .1.0000

'6 11.00 1.0000 1.0000 1.0000

'7 10.80 1.0000 1.0000 1.0000

'8 10.60 1.0000 1.0000 1.0000

9 10.40 1.0000 1.0000 1.0000

10 10.20 1.0000 1.0000 1.0000 11 10.00 1.2023 1.2023 1.2023 .

12 9.80 1.1989 1.1989 1.1989 13 9.80 1.2020 1.2020 14 1.2020 9.40 1.2027 1.2027 1.2027 15 9.20 1.2019 1.2019 16 1.2019 9.00 1.2032 1.2032 1.2032 17 8.80 1.2083 1.2083 18 1.2083 8.60 1.2174 1.2174 1.2174 19 8.40 1.2295 1.2295 1.2295 20 8.20 1.2416 1.2416 1.2416 21 8.00 1.2555 1.2555 1.2555 22 7.80 i.2683 1.2683 1.2683 23 7.60 1.2767 1.2767 1.2767 24 7.40 1.2818 1.2818 1.2818 25 7.20 1.2835 1.2835 1.2835 26 7.00 1.2821 1.2821 1.2821 27 6.80 1.2779 1.2779 1.2779 28 6.60 1.2710 1.2710 1.2710 29 6.40 1.2616 1.2616 1.2616 30 6.20 1.2504 1.2504 1.2504 O 31 32 33 34 6.00 5.80 5.60 1.2357 1.2245 1.2211 1.3840 1.3714 1.3676 1.4581 1.4449 1.4409 5.40 1.2222 1.3689 1.4422 35 5.20 1.2301 1.3777 1.4515 36 5.00 1.2376 1.3861 1.4604 37 4.80 1.2425 1.3910 1.4662 j 38 4.60 1.2457 1.3952 1.4699 39 4.40 1.2466 1.3962 1.4710 40 4.20 1.2452 1.3946 1.4693 41 4.00 1.2432 1.3924 1.4670 42 3.80 1.2414 1.3904 1.4649 43 3.60 1.2387 1.3873 1.4617 44 3.40 1.2340 1.3821 1.4561 45 3.20 1.2309 1.3786 1.4525 46 3.00 1.2351 1.3833 1.4574 47 2.80 1.2439 1.3932 1.4678 4

i 48 2.60 1.2522 1.4025 1.4776 49 2.40 1.2600 1.4112 1.4868 50 2.20 1.2692 1.4215 1.4977 51 2.00 1.2796 1.4332 1.5099

'52 1.80 1.0000 1.0000 1.0000

'53 1.60 1.0000 1.0000 1.0000

54 1.40 1.0000 1.0000 1.0000

55 1.20 1.0000 1.0000 1.0000

'56 1.00 1.0000 1.0000 1.0000

S7 0.80 1.0000 1.0000 1.0000

'58 0.60 1.0000 1.0000 1.0000

'59 0.40 1.0000 1.0000 1.0000

60 0.20 1.0000 1.0000 1.0000

61 0.00 1.0000 1.0000 1.0000

Top and Bottom 15% Excluded per Technical Specification 4.2.2.2

Set 1 for -3% s (Measund AO - Predicted AO) 5 + 3%

Set 2 for +3% < (Measurud AO - Predicted AO O Set 3 for +6% < (Measured AO Predicted s9% AO)) s + 6%

FIGURE 9 RAOC W(Z) AT 18000 MWD /MTU PAGE 13 of 14 Revision 1

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- COLR for VEGP UNIT 2 CYCLE 5 O TABLE 1 Fl(Z) PENALTY FACTOR Cycle Fl(Z)

Burnup Penalty (MWD /MTU) Factor 3085 1.0200 3714 1.0435 4134 1.0568 4553 1.0588 4973 1.0548 5392 1.0470 6021 1.0375 6440 1.0295 ;

6870 1.0200 Notes:

1. The Penalty Factor, to be applied to Fl(Z) in accordance with surveillance !

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% of the surveillance interval plerTechnicalSpecification4.0.2)startingfromtheburnupatwhichthe F (Z) was determined.

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.

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PAGE 14 of 14

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ML20117E719

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