ML20217K774

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Rev 1 to Vegp,Unit 1 Cycle 9 Colr
ML20217K774
Person / Time
Site: Vogtle Southern Nuclear icon.png
Issue date: 09/30/1999
From:
SOUTHERN NUCLEAR OPERATING CO.
To:
Shared Package
ML20217K759 List:
References
NUDOCS 9910260236
Download: ML20217K774 (15)
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Text

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l VOGTLE ELECTRIC GENERATING PLANT (VEGP) UNIT 1 CYCLE o CORE OPERATING LIMITS REPORT I

REVISION 1 l

SEPTEMBER 1999 l

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9910260236 991015 PDR ADOCK 05000424 l P PDR l

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COLR for VEGP UNIT 1 CYCLE 9 1.0 CORE OPERATING LIMITS REPORT This Core Operating t.imits Report (COLR) for VEGP UNIT 1 CYCLE 9 has been prepared in accordance with the requirements of Technical Specification 5.6.5.

The Technical Requirement affected by this report is listed below:

13.1.1 SHUTDOWN MARGIN - MODES 1 and 2 The Technical Specifications affected by this report are listed belov."

3.1.1 SHUTDOWN MARGIN - MODES 3,4 and 5 3.1.3 Moderator Temperature Coetticient 3.1.5 Shutdown Bank insertion Lim;ts 3.1.6 Control Bank Insertion Limits 3.2.1 Heat Flux Hot Channel Factor - Fo(Z) 3 2.2 Nuclear Enthalpy Rise Hot Channel Factor - FL 3.2.3 Axial Flux Difference 3.9.1 Boron Concentration PAGE 1 of 14

e COLR for VEGP UNIT 1 CYCLE 9 2.0 OPERATING LIMITS tThe cycle-specific parameter limits for the specifications listed in section 1.0 are presented in the following subsections. These limits have been developed using NRC-approved methodologies,

' including those specified in Technical Specification 5.6.5.

2.1 SHUTDOM!N MARGIN - MODES 1 AND 2 (Technical Requirement 13.1.1) 2.1.1 The SHUTDOWN MARGIN shall be greater than or equal to 1.30 percent Ak/k.

2.2 SHUTDOWN MARGIN - MODES 3. 4 AND 5 (Specification 3.1.1) 2.2.1 The SHUTDOWN MARGIN shall be greater than or equal to the limits shown in figures 1 and 2.

2.3 Moderator Temoerature Coefficient (Specification 3.1.3) 2.3.1 The Moderator Temperature Coefficient (MTC) limits are:

4 The BOUARO/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 O Ak/k/ F at 100 percent RTP.

The EOUARO/RTP-MTC shall be less negative than 4

-5.50 x 10 Ak/k/ F.'

2.3.2 The MTC Surveillance limits are:

The 300 ppm /ARO/RTP-MTC should be less negative than or 4

equal to -4.75 x 10 Ak/k/ F.'

The 60 ppm /ARO/RTP-MTC should be less negative than 4

-5.35 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 EOL stands for End of Cycle Life RTP f rxis for RATED THERMAL POWER 2.4 Shutdown Bank insertion Limits (Specification 3.1.5)-

2.4.1 The shutdown banks shall be withdrawn to a pstion greater than or equal to 225 steps.

2.5 Control Bank Insertion Limits (Specification 3.1.6) 2.5.1 The control banks shall be limited in physical insertion as shown in Figure 3.

' Applicable for full-power T-average of 586.4 F.

PAGE 2 of 14

l COLR for VEGP UNIT 1 CYCLE 9 2.6 Heat Flux Hot Channel Factor - Fo(Z) (Specification 3.2.1)

RTP Fo 2.6.1 Fo(Z)s'

  • K(Z) for P > 0.5 P-RTP Fo Fo(Z) s -
  • K(Z) for P s 0.5

0.5 where

P = THERMAL POWER _

RATED THERMAL POWER RTP 2.6.2 Fo = 2.50

'2.6.3 K(Z)is provided in figure 4.

RTP

-2.6.4 Fo(Z)sfa

  • KfZ) for P > 0.5 P
  • W(Z)

RTP Fo(Z)sfa

  • KfZ) for P 5 0.5 0.5
  • W(Z) 2.6.5' W(Z) values are provided in Figures 6 through 9.

2.6.6 The Fo(Z) penalty factors are provided in Table 1.

l' l

l PAGE 3 of 14

COLR for VEGP UNIT 1 CYCLE 9 2'7 . Nuclear Enthalov Rise Hot Channel Factor - Fyn (Specification 3.2.2) 2.7.1 FfgsFNP e {j 4 ppAg e {j,p))

where: P = THERMAL F'OWER RATED THERMAL POWER 2.7.2a Fl'jP = - 1.53 for LOPAR fuel, and 2.7.2b FNP = 1.65 for VANTAGE 5 and VANTAGE + fuel 2.743 PFan = 0.3 for LOPAR and VANTAGE 5 and VANTAGE + fuel 2.8 Axlal Flux Difference (Specification 3.2.3) 2.8.1 The Axial Flux Difference (AFD) acceptable operation limits are provided in Figure 5.

L

~ 2.9 , Boron Concentration (Specification 3.9.1)

.2.9.1 The boron concentration shall be greater than or equal to 1980 ppm.'-

4

'This concentration bounds the condition of k.n s 0.95 (all rods in less the most reactive rod) and subcriticality (gli rods out) over the entire cycle. This concentration includes additional boron to address uncertainties and B' depletion.

PAGE 4 of 14

i l

COLR for VEGP UNIT 1 CYCLE 9  :

TABLE 1 Fo(Z) PENALTY FACTOR Cycle Fo(Z)

Burnup Penalty (MWD /MTU) Factor I

All Burnups 1.020 I

l Notes:

'1. The Penalty Factor, to be applied to Fo(Z) in accordance with SR 3.2.1.2, is the I

maximum factor by which Fo(Z) is expected to increase over a 39 EFPD interval (surveillance interval of 31 EFPD plus the maximum allowable 1xtension not to exceed 25% of the surveillance interval per SR 3.0.2) starting from the burnup at which the Fo(Z) was determined.

T PAGE 5 of 14

1 COLR for VEGP UNIT 1 CYCLE 9 t

5.00 4.00 ACCEPTABLE

^

OPERATING REGION (2500,3.1b

.00

$ REQUIRED SHUTDOWN z

l g MARGIN (1600,2.25)

[ 2.00 1 UNACCEPTABLE 1 I a OPERATING 1

  • (950,1.30) REGION l 1.00 I l

l 0.00 0 500 1000 1600 2000 2500 2141 RCS BOP.ON CONCEN TRATION (ppm)

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

l l

PAGE 6 of 14

I COLR for VEGP UNIT 1 CYCLE 9 l

1 5.00 (2500,4.90) 2 4.00 ACCEPTABLE F OPERATING

% REGION l b

(1250,2.85)

)

E REQUIRED 0 SHUTDOWN MARGIN k 2.00 j

UNACCEPTABLE u) OPERATING j REGION (460,1.00) 0.00 0 500 1000 1500 2000 2500 mi RCS BORON CONCENTRATION (ppm)

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

PAGE 7 of 14

COLR for VEGP UNIT 1 CYCLE 9 (Fully Withdrawn *) _

2h 28.0 %,225) (78.0%, 225)-

/ /

[ BANK B [

180

[ [

7 7

- [(0%.161) [ '

(100%,161) lg / /

} / /

[ BANK C [

I 120 7

/ /

7

/ /

E' / /

l /

/ /

[ BANK D

$* s/ /

/

f(0%,46) [

/

20

/

, <s0.2%. 0>/

0 20 40 60 80 100 POWER (percent of Rated Thermal Power)

  • F she be t cond where control rods are at a poemon witNn NA,YCIDa control t tg> tip S to FIGURE 3 ROD BANK INSERTION LIMITS VERSUS % OF RATED THERMAL POWER PAGE 8 of 14

1 COLR for VEGP UNIT 1 CYCLE 9 1.20 1.00 _

u. 0.80

~

i o 0.60 1

0.40 Fa= 2.50 l

@ CORE x HEIGHT JGl.

0.20 0.000 1.000 l 6.000 1.000 12.000 0.925 1

0 0 2.0 4.0 6.0 8.0 10.0 12.0 8'*

CORE HEIGHT (ft) l FIGURE 4 K(Z)- NORMAll2ED FO(Z) AS A FUNCTION OF CORE HEIGHT PAGE 9 of 14

COLR for VEGP UNiY 1 CYCLE 9 120 ,

I

(-15,100) (+10,100)  !

100 UNACCEPTABLE UNACCEPTABLE 1 f \

80 -

A ACCEPTABLE

/

( 30, 50)

\

(+26, 50)

J l

20

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

FIGURE 5

! AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF % OF RATED THERMAL l POWER FOR RAOC PAGE 10 of 14 l-

t COLR for VEGP UNIT 1 CYCLE 9 ,

Axial Elevation SOL 1 2 1 1.6 2 11.80 1.0000 i 3 11.60 1.0000 1 4 11.40 1.0000 5 11.20 1J0000 6 11.00 1.0000 7 10.80 1.0000 8 10.60 1.0000 9 10.40 1.0000 1*5

  • 10 10.20 1.0000 11 10.00 1.1 833 12 9J0 1.1791 13 9.60 1.1759 j 14 9.40 1.1710 a 15 920 1.1647 16 9.00 1.1597 1.4 . 17 820 1.1609 18 840 1.1674 a 19 8.40 1.1721 20 8.20 1.1751 21 8.00 1.1760

'a 22 7J0 1.1766 a 23 740 1.1793 1*3 4 24 7.# 1.1830 25 7.20 1.1840 b 'a 26 27 7.00 6JO 1.1826 3: a 28 1.1792 6.60 1J740 29 6.40 1.1672 a 30 6.20 1.1592 31 6J00 1.1960 a

1.2 "

. 32 530 1.1906 4 33 540 1.1914 "a4a. '

4a,a n a a

a 34 5.40- 1.2083 a'a' 35 36 520 5.00 1.2240 1.2381 37 430 1.2515 38 4.60 1.2639 39 4.40 gg 40 420 1.2749 1.2842 41 4.00 12954 42 330 1.3077 43 340 1.3187 l

' 44 3.40 13287 45 3.20 13381 46 3.00 13542 1.0 47 2J0 13764 0.0 2.0 4.0 6.0 8.0 10.0 12.0 48 240 13992 49 2.40 1.4213 CORE HEIGHT (feet) 50 220 1.4468 51 2.00 1.4727 52 1JO 1.0000 53 1.60 1.0000 54 1.40 1.0000 55 1.20 1.0000 56 1.00 1.0000 57 030 1.0000 FIGURE 6

  • 58 040 1.0000 ,

59 0.40 1.0000 1 60 020 1;0000 l

RAOC W(Z) AT 150 MWD /MTU 61 0.00 1J0000

  • Top and Bottom 15% Exduded per l Technical SpedHcation B3.2.1 This 20ure is refwred to by Technical SpedRca6cn B3.2.1 PAGE 11 of 14

COLR for VEGP UNIT 1 CYCLE 9 Axia. Elevation MOL-t Point (fuet) W(Z) 1.6

  • 1 , 12.00 1.0000 2 11.80 1.0000 3 11.60 1.0000 4 11.40 1.0000 5 1120 1.0000 6 11.00 1.0000 7 10.80 1.0000 1.1
  • 8 10.60 1.0000 9 10.40 1.0000 10 10.20 1.0000 11 10.00 1.3220 12 9.80 1.3035 13 9.60 1.2879 14 9.40 1.2687 14 15 m 12501 16 9.00 1.2244 17 8.80 1.2110 18 8.60 1.2092 19 8.40 1.2101 20 820 1.2091 21 8.00 1.2064 a 22 7.80 1.2011 1,3 ^ - 23 7.60 1.1960 g a 24 7.40 1.1946

@ o 4,

a 25 26 7.20 7.00 1.1905 3 4

27 6.80 1.1841 1.1759 28 6.60 1.1660

'a n 29 6/0 1.1547

', ,4444 30

. *I

., 6.20 1.1433 a

o

...- 31 6.00 1.1576 g

o 32 5J0 1.1505

'a a 33 5.60 1.1492

.. a 34 5.40 1.1615 4 35 5.20 1.1734 36 5.00 1.1840 37 4A0 1.1941 1.1 38 4.60 1.2031 39 4.40 12110 40 420 1.2195 41 4.00 1.2293 42 3JO 1.2391 43 340 1.2471 44 3.40 1.2539 1.0 45 320 1.2618 0.0 2.0 4.0 6.0 8.0 $

10.0 12.0 ["so }$

CORE HEIGHT (feet) $

50

[$

2.20

}*330, 1.3537 51 2.00 1.3766 52 1J0 1.0000 53 1.60 1.0000 54 1.40 1.0000 55 1.20 1.0000

  • 56 1.00 1.0000 FIGURE 7 57 0A0 1.0000
  • 58 0.60 1.0000 0000 RAOC W(Z) AT4000 MWD /MTU

$ 0$ }0000 61 0.00 1.0000

  • Top and Bonom 15% Enduded per Technical Speclecedon B3.2.1

. TNs noure le referred to tv Technical spedacason 83.2.1 PAGE 12 of 14

1 COLR for VEGP UNIT 1 CYCLE 9 l Axial Elevation MOI 2 l Point (feet) W(Z) i 1 12.00 1.0000 2 11.80 1.0000 1.6 .

3 11.60 1.0000 4 11.40 1.0000 5 11.20 1.0000 6 11.00 1.0000 i 7 10.80 1.0000 I i 8 10.60 1.0000 l 9 10.40 1.0000 1.,s

  • 10 10.20 1.0000 11 10.00 1.2758 12 9.80 1.2603 13 940 12482 14 9.40 1.2410 l 15 9.20 1.2340 16 9.00 1.2209 1.4 17 8.80 1.2178 18 8.60 1.2278 19 8.40 1.2327 20 820 1.2359 21 8.00 1.2372 22 7.80 1.2360 23 7.60 1.2356 24 7.40 1.2391 l 1.3 25 7.20 1.2393 p

26 7.00 1.2364 27 6.80 1.2312 3 4 i a 28 6.60 1.2235 a a= 29 6.40 1.2138 a a "a'aa' 44 a 30 6.20 1.2023 osaaa. ,a aa ,a a ,

31 6.00 1.1883 1

- 32 5.80 1.1766

a ,

33 5.60 1.1738 a 34 5.40 1.1810 an 35 5.20 1.1912 36 5.00 1.2004 37 4.80 1.2000 38 440 12141 39 4.40 1.2186 1.1 40 4.20 1.2215 41 4.00 12228 42 3.80 1.2226 43 3.60 1.2213

  • 44 3.40 12207 45 3.20 1.2227 46 3.00 1.2240 1.0 47 2.80 1.2292 0.0 2.0 4.0 6.0 8.0 10.0 12.0 $ 2$

1  !$

50 2.20 1.2657 CORE HEIGHT (feet) 51 2.00 1.2775 52 1.80 1.0000 53 160 1.0000 54 1.40 1.0000 '

55 120 1.0000 56 1.00 1.0000 57 0.80 1.0000 FIGURE 8

  • 58 040 1.0000 59 0.40 1.0000 RAOC W(Z) AT 12000 MWD /MTU $ $289 j,-Q
  • Top and Bottom 15% M M per Techrical Specmcaton B3.2.1 TNs Agure is rolered to by Technical Sph lon B3.2.1 PAGE 13 of 14

COLR for VEGP UNIT 1 CYCLE 9 Axial Elevation EOL 1 0 10 1.6

  • 2 11.80 1.0000 i 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 1040 1.0000 1.5

  • 9 10.40 1.0000 10 10.20 1.0000 11 10.00 1.1939 12 9.80 1.1930 13 9.60 1.1935 14 9.40 1.1982 15 920 1.2011 1*4 16 9.00 1.2059 17 SJO 1.2153 18 8.60 1.2279 19 8.40 1.2427 20 820 1.2621 21 8.00 1.2772 22 7.80 1.2903 4<4 4 23 7.60 4 ^ 13038 1.3 i 24 7.40 13123 a a a 25 7.20 g a 26 7.00 1.3170 13180 a 'asao,* ,a a 27 6A0 1.3155 8

28 6.60 1.3098

"'a'a, '

29 6.40 1.3010 8 30 620 1.2997 31 6.00 1.2749 1.2 '

aa - 32 5JO 1.2614 33 540 1.2539 34 5.40 1.2510 35 520 1.2548 36 5.00 1.2591 37 430 1.2607 38 440 1.2602 1*1 39 4.40 1.2572 40 420 1.2512 41 4.00 1.2474 42 330 1.2449 43 340 1.2400 44 3.40 1.2334 45 320 1.2283 1 ' 01 46 3mo 1m 0.0 2.0 4.0 6.0 0.0 10.0 12.0 d

49 2.40

}2257 1.2712 CORE HEIGHT (feet) 50 220 1.2847 51 2.00 1.2979 52 IJO 1.0000 i

53 1.60 1.0000 54 1.40 1.0300 }

55 1.20 1.0000 -

  • 56 1.00 1.0000 FIGURE 9 57 OJO Im000 58 040 1.0000 59 0 40 12000 RAOC W(Z) AT 20000 MWD /MTU
  • 60 0.20 1.0000 61 0.00 1.0000 j
  • Top and Bonom 15% Excluded per Technical Spedication B3.2.1 This fl 0ure is referred to by Technical SpecNication 83.2.1 '

PAGE 14 of 14

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