ML20081A755

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Cycle 5 Colr
ML20081A755
Person / Time
Site: Vogtle Southern Nuclear icon.png
Issue date: 03/31/1995
From:
GEORGIA POWER CO.
To:
Shared Package
ML20081A752 List:
References
NUDOCS 9503150276
Download: ML20081A755 (17)
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t V0GTLE ELECTRIC GENERATING PLANT (VEGP) UNIT 2 CYCLE 5 CORE OPERATING LIMITS REPORT-i March 1995 l

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9503150276 950309 l

PDR ADOCK 05000425 I

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t Vogtle Electric Generating Plant Unit-1 and Unit 2 Core Operating Limits Report i

Unit 2 Cycle 5 March 1995-Revision Insertion Instructions 1133 Instructions f

Active COLR List Replace :

Unit 2 Report

. Replace and Title Page 4

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Vogtle Electric Generating Plant Unit 'l and Unit 2

{

Active Core Operating Limits Report List March 1995 Unit 1 Cycle 6 September 1994 Unit 2 Cycle 5 March 1995 tag,\\,.,ti.\\ coon.as

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COLR'for'VEGP UNIT 2 CYCLE 5

~

1.0 GQEE_Q?ERATING LIMITS REPORT E

This Core Operating Limits Report (COLR) for VEGP UNIT 2 CYCLE.5 has been j

prepared in accoroance 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 SHUTDOWN MARGIN - MODES I and 2 i

I 3/4.1.1.2 SHUTDOWN MARGIN - MODES 3, 4 and 5 3/4.1.1.3 Moderator Temperature Coefficient 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 l

3/4.2.2 Heat Flux Hot Charnel Factor - F,(Z) 3/4.2.3 Nuclear Enthalpy Rise Hot' Channel Factor - F%

i 1

1

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PAGE 1 of 14

COLR for VEGP UNIT 2 CYCLE 5 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 i

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 1.3% Ak/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 Temperature 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 ok/k/*F at 100% RTP.

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

I ok/k/*F.*

2.3.?

The MTC Surveillance limit is:

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

-4.75 x 10-* ok/k/*F.*

c.

where:

BOL stands for Beginning of Cycle Life l

ARO stands for All Rods Out HZP stands for Hot Zero THERMAL POWER EOL stands for End of Cycle Life RTP stands for RATED THERMAL POWER l

2.4 Shutdown Rod Insertion Limit (Specification 3/4.1.3.5)

[

2.4.1 The shutdown rods shall t ithdrawn to a position greater than or equal to 225 steps.

l 2.5 Control Rod Insertion Limits (Specification 3/4.1.3.6)

-[

l 2.5.1 The control rod banks shall be limited in physical insertion as l

shown in Figure 3.

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

PAGE 2 0F 14

=.

1

~

COLR for VEGP UNIT 2 CYCLE 5 2.6 Arial Flux Differegsg (Specification 3/4.2.1)

{RA0C methodology)

The Axial Flux Difference (AFD)' Acceptable Operation.l.inits are 2.6.1.

o provided in Figure 4.

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

.(Fi methodology}

)

p,RTP -

2.7.1 F,(Z) s

  • K(Z) for P > 0.5 P

J Y

p,RTP F,(Z) s

  • K(Z) for P s 0.5-0.5 THERMAL POWER' where:

P

=

RATED THERMAL POWER f.

2.7.2 FgTP= 2.50 2.7.3 K(Z) is provided in Figure 5.

FyTP

  • K(Z) 2.7.4.

F[(Z) s for P > 0.5 P

  • W(Z)

F[(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

6.

i

. i COLR for VEGP UNIT 2 CYCLE 5 C

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

I i

2.1B Nuclear Enthalny Rise Hot Channel Factor - FU, (Specification 3/4.2.3) 2.8.1 FM, s FRTP* (1 + pp, * (i_p))

where:

P THERMAL POWER

=

RATED THERMAL POWER 1.53 for LOPAR. fuel, and 2.C.2a F0,TP

=

2.8.2b F3JP 1.65 for VANTAGE 5 fuel

=

i 0.3 for LOPAR and VANTAGE 5 fuel 2.8.3 PF,

=

2 i

.1 1

.i l

. sos-,o.swa..

PAGE 4 of 14 i

COLR for VEGP UNIT 2 CYCLE 5 i

l 5.00 l

n I 4.00 2

ACCEPTABLE y

OPERATING REGION l

h 3.00 (2500,3.1b j

z S

(1600,2.25) 2.00 J

5 0

UNACCEPTABLE E

s OPERATING t

y (950,1.30)

REGION w 1.00 E

i i

1 0.00 I

0' 500 1000 1500 2000 2500 m

RCS BORON CONCENTRATION (ppm)

J FIGURE 1 REQUIRED SHUTDOWN MARGIN FOR MODES 3 AND 4 (MODE 4 WITH AT LEAST l

ONE REACTOR COOLANT PUMP RUNNING) i PAGE 5 of 14

-; 4 1

COLR for VEGP UNIT 2 CYCLE 5 t

5.00 (2500,4.90) t

$ 4.00 2

ACCEPTABLE 1E OPERATING REGION 8.

E

)

5 3.00 C

(1250,2.85) z 3:

bg 2.00 5

UNACCEPTABLE C

OPERATING g

j REGION (460,1.00) 0.00 0

500 1000 1500 2000 2500 2175-1 RCS BORON CONCENTRATION (ppm)

)

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

]

PAGE 6 of 14 l

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

2 4 28.0 %,225)

/

/ (78.0%,225)-

J J

[ BANK B

[

[

* /

/

' ' II

~

160

/

/

(100%,161) 140

[ BANK C

/

5

/

/

z 120 9

[

[

2 100

/

/

k 80

[

[ BANK D 60 /

/

~

f(0%,46)

[

/

20

/

(30.2%,0)[

0 0

20 40 60 80 100 (Fully inserted)

POWER (percent of rated thermal power) i

  • Fully wthdrawn shall be the condition where control rods are at a position wthin i

the interval 2225 rnd $231 steps wnhdrawn.

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

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COLR for VEGP UNIT 2 CYCLE 5 t

140 120 e

(-20,100)

(+10,100)

E 100 UNACCEPTABLE UNACCEPTABLE 80 1

/

\\

ci f

l E

}

ACCEPTABLE

\\

g 60

\\

CL

(-35, 50)

(+26,50) 3o 40 j

20 0

-50

-40

-30

-20

-10 0

10 20 30 40 50 j

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

l 1.40 i

1.20 8

0 1

1.00 32 h 0.80 a

5 O.60 F - 2.50 gr o

0z CORE

_ g 0.40 HEIGHT K(Z) g 0.000 1.000 1

6.000 1.000 0.20 12.000 0 s 25 s

0 0

2.0 4.0 6.0 8.0 10.0 12.0 CORE HEIGHT (ft) e i

FIGURE 5 K(Z)- NORMALIZED Fg (Z) AS A FUNCTION OF CORE HEIGHT PAGE 9 of 14

r COLR for VEGP UNIT 2 CYCLE 5 Axial Elevation BOL Point (feet)

W(z) 1 12.00 1B000 -

1.60 2

11 2 1D000 3

11.60 1.0000

  • - 4 11.40 1.0000 5

11.20 1.0000 6

11.00 1.0000 7

10.80 1D000 8

10.60 1.0000 9

10.40 1.0000 1.5C 10 10.20 1.0000 11 10D0 1.1928 12 9.80 1.1771 13 9.60 1.1724 14 9.40 '

1.1719 15 9.20 1.1844 16 9.00 1.2017 1.4C 17 8.80 1.2194 18 8.60 1.2366 A

19 8.40 1.2513 i

A 20 820 1.2665 21 8.00 1.2795 22 7.80 1.2892 A

23 7.60.

1.2962

~

24 7.40 13004

-1. 3 C 25 720 13020 3

^

E T

26 7.00 13015 d6 27 6.80 12988 i

6 A

28 6.60 12941 A

29 6.40 1.2877 A

A A

30 6.20 1.2798 AA 31 6.00 1.2706

'lF A

32 5.80 12598 1.2C 33 5.60 1.2482 d'

A 34 5.40 12364 g

35 5.20 1.2227 36 5.00 1.2155 i

37 4.80 1.2225 38 4.60 1.2354 39 4.40 1.2465 40 4.20 12564 1.10 41 4.00 1.2649 42 3.80 1.2716 l

43-3.60 1.2774 44 3.40 1.2850 45 320 12946 46 3.00 13081 47 2.80 13262 1*00-

  • 49 2.60 13464 47 2.40 13654 0

2 4

6 8

10 12

'o 2.20 1.3836 CORE HEIGHT (feet)

!il 2.00 1.4015 S2 1.80 1D000 S3 1.60 1.0000 i

54 1.40 1.0000 55 1.20 1.0000 56 1.00 1.0000 57 0.80 1.0000 This Agure is nfernd to by Tec.inical 58 0.60 1D000 Speci6 cations 4.2.2.2d. B3/4.2.2.

[

l$

61 0.00 1.0000 Top and Bottom 15% Exduded per Technical SpecL6catan 42.2.2 Figure 6 RAOC W(z) at 150 MWD /MTU PAGE 10 Of 14

COLR for VEGP UNIT 2 CYCLE'S Axial Devation MOL 1 Point Uset)

W(z) 1 12.00 1D000 1.60 2

11.80 1D000 3

11.60 1.0000 4

11.40 1.0000 5

1120 1.0000 6

11.00 1D000 7

10.80 1.0000 8

10.60 1.0000 -

9 10.40 1.0000

1. f., C 10 1020 1.0000 11 10D0 1.2135 12.

9.80 1.1889 13 9.60 1.1733 14 9.40 1.1871 15 9.20 1.1997 16 9.00 1.2097 1.4C 17 8.80 1.2202 A

18 8.60 1.2301 19 8.40 1.2375 A

20 8.20 1.2430 21 8.00 1.2464 A

22 7.80 -

1.2477 A

23 7.60 1.2471 24 7.40 12448

^

-1.30 25 7.20 -

1.2407 3:

A 26 7.00-1.2353 27 6.80 1.2286 Ag 28 6.60 1.2207 29 6.40 1.2119 "A

[\\

30 6.20 1.2037

/

31 6.00 1.1955 A

A

,A 3

o 32 5.80 1.1871 1.2C i

33 5.60 1.1772

[

AA 34 5.40 1.1670 a &

b A

35 5.20 1.1715 36 5.00 1.1855 37 4.80 1.2001 38 4.60 1.2133 39 4.40 1.2256 1.10 40 420 1.2364 41 4.00 12468 d2 3.80 1.2575 43 3.60 1.2674 44 3.40 1.2767 45 3.20 1.2912 46 3.00 13055 47 2.80 13197 1.00 48 2.60 13386 49 2.40 13628 0

2 4

6 8

10 12 50 2.20 13864 CORE HEIGHT (feet) 51 2.00 1.4090

+

52 1.80 1.0000 53 1.60 1.0000 54 1.40 1.0000 55 1.20 1.0000 e

56 1.00 1.0000 57 0.80 1.0000 This 8gure is nfernd to by Technical 58 0.60 1.0000 Speci6 cations 4.2.2.2d. B3/4.2.2.

5 2000 61 0.00 1.0000 Top and Bottoer.15% Exduded per Techrdcal Spoofxanon 4.2.2.2 Figure 7 RAOC W(z) at 4000 MWD /MTU PAGE 11 of 14

4 COLR for VEGP UNIT 2 CYCLE 5 Axial Elevation MOL-2 Point (feet)

W(z) '

'1 12.00 1.0000 1.60 2

11.80 1D000 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 9

10.40 1D000 l'

1'5C 10 10.20 1.0000 11 10D0 1.2356 12 9.80 1 2.261 13 9.60 1.2211 14 9.40 1.2200 15 9.20 1.2186 16 9.00 1.2153 1.4C 17 8.80 1.2133 18 8.60 1.2164 19 8.40 1.2231 20 8.20 1.2271 21 8.00 1.2284 22.

7.80 1.2275 23 7.60 1.2241 '

24 7.40 1.2187

.3C 25 720 1.2112 ug 26 7.00 1.2018 g

27 6.80 '

1.1918 4

28 6.60 1.1821 29 6.40 1.1723 A

30 6.20 1.1626' n

A 2

5'80 11 1.2C 33 -

5.60 1.1480 a'

34 5.40 1.1586 "A

A 35 520 1.1691 A

A 36 5.00 1.1786 g.

37 4.80 1.1870 38 4.60 1.1941 39 4.40 1.1999 40 4.20 1.2042 1.10 41 4.00 1.2076 42 3.80 1.2114 43 3.60 12152 44 3.40 1.2172 45 3.23 1.2201 46 3.00 12285 47 2.80 1.2419 1.00 48 2.60 1.2566 d

}$

4 0

2 4

6 8

10 12 CORE HEIGHT (feet) 51 2.00 12966 52 1.80 1D000 53 1.60 1.0000 54 1.40 1.0000 55 1.20 1.0000 56 1.00 1.0000 57 0.80 1D000 This Sgun is nferred to by Technical 58 0.60 1.0000 Speci8 cations 4.2.2.2d, B3/4.2.2.

5 j

61 0.00 1.0000 Top and Bottom 15% Exduded per Technimi Speafunten 422.2 Figure 8 RAOC W(z) at 10000 MWD /MTU PAGE 12 of 14

f COLR for VEGP UNIT 2 CYCLE 5 Axial Elevation EOL 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 i

5 11.20 1.0000 6

11.00 1.0000 7

10.80 1.0000 8

10.60 1.0000 1.5C 9

10.40 1.0000 10 10.20 1.0000 11 10.00 12023 12 9.80 1.1999 13 9.60 1.2020 14 9.40 1.2027 15 9.20 12019 16 9.00 1.2032 1.40 17 8.80 12083 18 8.60 1.2174 19 8.40 1.2295 20 8.20 1.2416 21 8.00 1.2555 22 7.80 12683 23 7.60 1.2767 24 7.40 1.2818 i

.3C 25 7.20 12835 26 7.00 12821

/

27 6.80 1.2779 o

A

  1. ^

A 28 6.60 1.2710 l

^

^

29 6.40 1.2616

~

3 g9 A

30 6.20 12504 h"

A 31 6.00 1.2357 A

32 5.80 1.2245 1.20 33 5.60 1.2211 34 5.40 1.2222 l

35 520 1.2301 36 5.00 12376 37 4.80 1.2425 38 4.60 1.2457 ~

39 4.40 1.2466 40 4.20 1.2452 1.1C 41 4.00 1.2432 42 3.80 1.2414

)

43 3.60 12387 44 3.40 1.2340 45 3.20 12309 46 3.00 12351 47 2.80 1.2439 1.On 48 2.60 12522 49 2.40 1.2600 -

0 2

4 6

8 10 12 50 220 1.2692 CORE HEIGHT (feet) 51 2.00 1.2796 52 1.80 1.0000 l

53 1.60 1.0000 l

54 1.40 1.0000 55 1.20 1.0000 i

56 1.00 1.0000 57 0.80 1.0000 This 6gure is referred to by Technical 58 0.63 1.0000 Speel6 cations 4.2.2.2d, B3/4.2.2.

]

l-61 0.00 1.0000 Top and Bottom 15% Exduded per Figure 9 RAOC W(z) at 18000 MWD /MTU PAGE 13 of 14

)

i

L COLR for VEGP UNIT 2 CYCLE 5 l

+

TABLE 1 F'(Z) PENALTY FACTOR Cycle F'(Z)

Burnup Penalty i

(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:

l.

The Penalty Factor, to be applied to F'(Z) in accordance with surveillance requirenent 4.2.2.2.,, is the maximum lactor 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 p'er Technical Specification 4.0.2) starting from the burnup at which the 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.

P PAGE 14 of 14

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