ML20107B643

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Cycle 7 Colr
ML20107B643
Person / Time
Site: Vogtle Southern Nuclear icon.png
Issue date: 03/31/1996
From:
GEORGIA POWER CO.
To:
Shared Package
ML20107B642 List:
References
NUDOCS 9604170009
Download: ML20107B643 (19)


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V0GTLE ELECTRIC GENERATING PLANT (VEGP) UNIT 1 CYCLE 7 CORE OPERATING LIMITS REPORT 2 MARCH 1996 s

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960417C009 960410 PDR ADOCK 05000424 P PDR

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COLR for VEGP UNIT 1 CYCLE 7 l

l 1.0 CORE OPERATING LIMITS REPORT l This Core Operating Limits Report (COLR) for VEGP UNIT 1 CYCLE 7 has been i

prepared in accordance with the requirements of Technical Specification t 6.8.1.6.

The Technical Specifications affected by this report are listed below:

3/4.1.1.1 SHUTDOWN MARGIN - MODES 1 and 2 l 3/4.1.1.2 SHUTDOWN MARGIN - MODES 3, 4 and 5 3/4.1.1.3 Moderator Temperature Coefficient l 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 3/4.2.2 Heat Flux Hot Channel Factor - F,(Z) 3/4.2.3 Nuclear Enthalpy Rise Hot Channel Factor - F1 l

l PAGE 1 of 14

COLR for VEGP UNIT 1 CYCLE 7 2.0 OPERATING LIMITS The cycle-specific parameter limits for the specifications listed in section 1.0 j are presented in the following subsections. These limits have been developed using the NRC-approved methodologies specified in. Technical Specification 6.8.1.6 l 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 percent 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/ARO/HZP - MTC shall be less positive than +0.7 x 10 ' Ak/k/*F for power levels up to 70 percent RTP with a linear ramp to 0 Ak/k/*F at 100 percent RTP.

i The E0L/AR0/RTP-MTC shall be less negative than

-5.50 x 10 Ak/k/*F.*

2.3.2 The MTC Surveillance limit is:

l l 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 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 control rod banks shall be limited in physical insertion as i shown in figure 3.

  • Based on full-power T-average of 586.4.

PAGE 2 of 14

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. COLR for VEGP UNIT 1 CYCLE 7 5

2.6 axiit' Flux Difference (Specification 3/4.2.1)

{ relaxed axial offset control (RAOC) methodology}

2.6.1 The Axial Flux Difference (AFD) acceptable operation limits are provided in figure 4.

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

{F, methodology)

RTP l 2.7.1 F,(Z) s
  • K(Z) for P > 0.5 P

RTP l F,(2) s

  • K(Z) for P s 0.5

0.5 where

P -

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

C RTP 2.7.4 F (Z) s F,

  • K(Z) for P > 0.5 P
  • W(Z)

C RTP F (Z) s F,

  • K(Z) for P 1 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 1 CYCLE 7 C

2.7.6 The Fa (Z) penalty factors are provided in table 1.

2.8 Nuclear Enthalov Rise Hot Channel Factor - F% (Specification 3/4.2.3)

RTP 2.8.1 F% s F, * (1 + PF ,* (1-P))

where: P = THERMAL POWER RATED THERMAL POWER RTP 2.8.2a F, =

1.53 for LOPAR fuel and RTP 2.8.2b F, =

1.65 for VANTAGE 5 fuel 2.8.3 PF , =

0.3 for LOPAR and VANTAGE 5 fuel PAGE 4 of 14

4 COLR for VEGP UNIT 1 CYCLE 7 TABLE 1 Fj(Z) PENALTY FACTOR Cycle Fl(Z)

Burnup Penalty (MWD /MTU) Factor 360 1.021 1408 1.021 3085 1.024 3295 1.030 3924 1.033 4344 1.031 4973 1.026 5392 1.024 6021 1.023 6650 1.022 7069 1.021 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 per Technical Specification 4.0.2) starting from the burnup at which the Fj(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.

PAGE 5 of 14

N

, COLR FOR VEGP UNIT 1 CYCLE 7 5.00 l

l 4.00

^ ACCEPTABLE g OPERATING l REGION I

$ (2500, 3.1h g .00 REQUIRED SHUTDOWN y MARGIN E (1600,2.25) 2 e j 2.00 i 8

$ UNACCEPTABLE I 2 OPERATING

  • (950,1.30) REGION 1.00 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)

PAGE 6 of 14

i COLR FOR VEGP UNIT 1 CYCLE 7 i

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, 5.00 l (2500,4.90) l l

t i

4.00 '

l l ._, ACCEPTABLE l j OPERATING l < REGION is 5

g 3.00 Y

(1250,2.85) 2 REQUIRED

@ SHUTDOWN

< MARGIN l

l 3: 2.00 o

0 1

@ UNACCEPTABLE co OPERATING j REGION 1.00 (460,1.00) i i

1 0.00 0 500 1000 1500 2000 2500 2141 RCS BORON CONCENTRATION (ppm) 1 i

FIGURE 2

, REQUIRED SHUTDOWN MARGIN FOR MODES 4 AND 5 (MODE 4 WITH

NO REACTOR COOLANT PUMPS RUNNING) l l PAGE 7 of 14

COLR FOR VEGP UNIT 1 CYCLE 7 l

(Fully Withdrawn ')

2 f28.0%,225) (78.0%, 225)-

/ /

[ BANK B ~

[

180 f /

7 i T 160 (100 %,161) g / /

; / /

{ [ BANK C [

E z 120 g

/ g

/

9 4 ) \

M / / l

/ /

5 / /

$ [ [ BANK D 8

  • / /

/ / l 40 f(0%,46) [ '

/

20 ' f

/

(30.2%,0)[

0 20 40 60 80 100 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.

NOTE: The Rod Bank Inserton Limits are based on the control bank withdrawal sequence A B, C D and a control bank tip-to-ttp distance of 115 steps.

FIGURE 3 ROD BANK INSERTION LIMITS VERSUS RATED THERMAL POWER PAGE 8 of 14

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i COLR FOR VEGP UNIT 1 CYCLE 7 j 120 1

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(-20,100) (+10.100) 100 -

k UNACCEPTABLE ,

g tlNArCEPTABLE l 1

\ l e / \ i a 80 l E / \

8 if l )

3 ACCEPTABLE i l @ 60 l 7:i l E l E (-35, 50) (+26, 50)

8. l l

- 40 a

w 3

0 ,

O. 1 20 l

I

-50 -40 -30 -20 -10 0 10 20 30 40 50 AXIALFLUX DIFFERENCE (percental)

FIGURE 4 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER FOR RAOC 1

PAGE 9 of 14

COLR FOR VEGP UNIT 1 CYCLE 7 1.20 ,

1.00 8 -

B I 0.80 8

2 m

w 0.60 o 0.40 Z

Fa = 2.50

^

N CORE E HEIGHT K(Z) 0.20 0.000 1.000 6.000 1.000 12.000 0.925 0

0 2.0 4.0 6.0 8.0 10.0 12.0 8"5' CORE HEIGHT (ft)

FIGURE 5 K(Z)- NORMALIZED Fo(Z) AS A FUNCTION OF CORE HEIGHT PAGE 10 of 14

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l COLR FOR VEGP UNIT 1 CYCLE 7  ;

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

  • 2 11.80 1.0000 3 11.60 1.0000 l 4 11.40 1.0000 1 5 11.20 1.0000

! 6 11.00 1.0000 l 7 10.80 1.0000 1 8 10.60 1.0000 1.5C

  • 9 10.40 1.0000 10 10.20 1.0000 11 10.00 1.2462 12 9.80 1.2334 13 9.60 1.2269 14 9.40 1.2183 l 15 9.20 1.2096 16 9.00 1.1467

" l 1.4C 17 8.80 1.1963 A 18 8.60 1.2108 19 8.40 1.2202 A 20 8.20 1.2303 g 21 8.00 1.2383 22 7.80 1.2427 A 23 7.60 1.2448

^4, 24 7.40 1.2442 1.30 25 7.20 1.2414

- 3 26 7.00 1.2366 6 "A 27 28 6.80 6.60 1.2298 3: A 1.2219 A a 29 6.40 1.2141 j 'A 30 6.20 1.2050 A

K A 31 6.00 1.1950

^ A i

1.20

. f 32 33 5.80 5.60 1.1835 l

- a a6 1.1774 Ajk 34 5.40 1.1861 35 5.20 1.2007 36 5.00 1.2148 37 4.80 1.2289 38 4.60 1.2433 39 4.40 1.2564 40 4.20 1.2680 1.10 41 4.00 1.2783 42 3.80 1.2872 43 3.60 1.2944 44 3.40 13001 '

45 3.20 13072 46 3.00 13163 47 2.80 13280 l

1.00 48 2.60 13432 0 2 4 6 8 10 12 49 2.40 13620 50 2.20 1.3829 CORE HEIGHT (feet)

  • 51 2.00 1.4038 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 1
  • 58 om 1.0000 FIGURE 6
  • 59 0.40 1.0000 60 0.20 1.0000 RAOC W(Z) AT 150 MWD /MTU 61 0.00 1.0000

PAGE 11 of 14 21751

. = - - - - - a - - - . _ - - . - . . . - _ - . . -

1 l l . COLR FOR VEGP UNIT 1 CYCLE 7 Axial Elevanon MOL 1 l

Point (feet) w(z)  !

1 12.00 l

1.60

  • 2 11.80 1.0000 l 4
  • 1.0000 3 11.60 1.0000 4 11.40 1.0000 3 11.20 1.0000
  • 1 6 11.00 1.0000 7 10.80 1.0000 8 10.60 1.0000 1 1.5C
  • 9 10.40 1.0000 10 1030 1.0000 l 11 10.00 1.3323 l

12 9.80 13115 13 9.60 1.2919 l 14 9.40 1.2756

! 15 9.20 1.2534 16 9.00 1.2364 l 1.40 17 8.80 1.2341 l

3 18 8.60 1.2404 l 19 l 8.40 1.2434 A 20 8.20 1.2494 21 8.00 1.2534 A 22 7.80 1.2538 l

" 23 7.60 A 1.2518 l A 24 7.40 1.2472 l 1.30 d A 25 7.20 1.2404 26 7.00 1.2318

- A 27 6.80 1.2213 i N 28 6.60 1.2097 i

3 29 6.40 1.1985 "A

A g

[ % 30 31 6.20 6.00 1.1856 1.1763 A A 32 5.80 1.1681 1.2C --

. 33 5.60 1.1652 A A 34 5.40 1.1769 l A a 35 5.20 1.1894 M 36 5.00 1.2014 i

37 4.80 1.2139 38 4.60 1.2258 39 4.40 1.2366

40 4.20 1.2460 1.10 41 4.00 1.2552 l 42 3.80 1.2637 i 43 3.60 1.2708 44 3.40 1.2773 45 3.20 1.2861 l 46 3.00 1.2930 l

47 2.80 13020 48 2.60 .13185 1.00 49 2.40 13409 0 2 4 6 8 10 12 50 2.20 1.3627 51 2.00 13839 CORE HEIGHT (feet) ,

51 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

  • 58 0.60 1.0000 59 0.40 1.0000 FIGURE 7 .

60 0.20 1.0000 61 0.00 1.0000 RAOC W(Z) AT 4000 MWD /MTU

  • Top and Bottom 15% Exduded per Technical Speancation 4.2.23 This figure is referred to by Technical Specificanons 4.2.2.2d. B3/4.2.2 PAGE 12 of 14 21741
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COLR FOR VEGP UNIT 1 CYCLE 7 Avial Elevanon MOL2 Point (feet) W(z) 1*60 1 12.00 1.0000 2 11.80 1.0000 3 11.60 1.0000 l

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

1.5C

  • 9 10.40 1.0000 i
  • 10 10.20 1.0000 l 11 10.00 12506

! 12 9.80 1.2416 l 13 9.60 12393 14 9.40 1.2343 15 9.20 1.2239 16 9.00 1.2129 1.4C 17 8.80 1.2103 l 18 8.60 1.2166

' 19 8.40 12249 ,

20 8.20 1.2354 21 8.00 1.2435 22 7.80 1.2480 l 23 7.60 1.24 %

24 7.40 1.2483 l 1*3C 7.20 1 A 25 1.2443

- A 26 7.00 1.2379 I?!. A 27 6.80 1.2292 N . .

28 6.60 1.2187 i M L A F,g g 29 30 6.40 6.20 12071 1.1952 l

A l l T < A A g 31 32 6.00 5.80 1.1810 1.1699 i 1.2C a a 33 5.60 1.1699 l A a 34 5.40 1.1808 M 35 5.20 1.1923 36 5.00 1.2024 37 4.80 1.2113 38 4.60 1.2186 l 39 4.40 12245 l 1.1C 40 4.20 1.2286 41 4.00 1.2312 42 3.80 1.2318 43 3.60 1.2316 44 3.40 1.2316 l 45 3.20 1.2333 l 46 3.00 1.2389 47 2.80 1.2499 1.On 0 2 4 6 8 10 12 $ $

2.20

}.22 1.2902 CORE HEIGHT (feet) !0 31 2.00 1.3025 52 1.80 1.0000 53 1.60 1.0000

  • 54 1.0000 1.40 55 1.20 1.0000 56 1.00 1.0000 57 0.80 1.0000 FIGURE 8 -

58 0.60 1.0000 59 0.40 1.0000 60 0.20 1.0000 RAOC W(Z) AT 11000 MWD /MTU

  • 61 0.00 1.0000 l

'

  • Top and Bottom 15% Exduded per Techmcal Spechcanon 4.22.2 This figure is referred to by Technical Specifications 4.2.2.2d. B3/4.2.2 PAGE 13 of 14 2175 1 I

l

) 4

' ,. COLR FOR VEGP UNIT 1 CYCLE 7

, Axial Elevanon EOL l Point (feet) w(z) 1 12.00 1.0000 i

1 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 1.5C

  • 9 10.40 1.0000 10 10.20 1.0000 l 11 10.00 1.2023

! 12 9.80 1.2005 l 13 9.60 1.2013 14 9.40 1.2077

! 15 9.20 1.2133 I r 16 9.00 1.2167 1.40 17 8.80 1.2193 18 8.60 1.2226 19 8.40 1.2297 l

20 8.20 1.2464 21 8.00 1.2620 22 7.80 1.2732 23 7.60 12816 24 7.40 1.2869 1.3C 25 7.20 1.2891 a

A

%A 26 27 7.00 6.80 1.2886 1.2851 N. A JN j u 28 6.60 1.2802 3; g- as a 29 6.40 1.2759 i

g i 30 6.20 1.2703 h L 31 32 6.00 5.80 1.2635 1.253+

i 1.20 -

33 5.60 1.2450

! 34 5.40 1.2450 l 35 5.20 1.2497

! 36 5.00 1.2541 i

37 4.80 12579 1

38 4.60 1.2614 39 4.40 1.2623 40 4.20 1.2616 l 1.10 41 4.00 1.2600 42 3.80 1.2565 l 43 3.60 12509 l 44 3.40 1.2433 l 45 3.20 1.2322 ,

46 3.00 1.2325 1

! 47 2.80 1.2408 l 1*00t 48 2.60 1.2487 i O 2 4 6 8 10 12 49 2.40 1.2595 l l 50 2.20 1.2708 51 2.00 1.2821 i CORE HEIGHT (feet)

  • 52 1.80 1.0000 i 53 1.60 1.0000

. 54 1.40 1.0000 l 55 1.20 1.0000 56 1.00 1.0000 57 0.80 1.0000

  • 58 0.60 1.0000 FIGURE 9 59 0.40 1.0000
  • 60 0.20 1.0000 61 0.00 1.0000 RAOC W(Z) AT 19000 MWD /MTU
  • Top and Bottom 15% Exduded per Technical Spea6 cation 4.2.2.2 This figure is referred to by Technical Specificaens 4.2.2.2d. B3/4.2.2
PAGE 14 of 14 2141