Text

Rev 1 to Vogtle Electric Generating Plant Unit 1,Cycle 6 Colr
	ML20094E112
Person / Time
Site:	Vogtle
Issue date:	10/31/1995
From:	; GEORGIA POWER CO.
To:	;
Shared Package
ML20094E106	List: ML20094E103; ML20094E112;
References
	NUDOCS 9511070066
	Download: ML20094E112 (14)
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M V0GTLE ELECTRIC GENERATING PLANT (VEGP) UNIT _1 CYCLE 6 CORE OPERATING LIMITS REPORT OCTOBER 1995 REVISION 1 N

1

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9511070066 DR 951102 ADOCK 05000424 l PDR

COLR for VEGP UNIT 1 CYCLE 6 l 1.0 CORE OPERATING LIMITS REPORT This Core Operating Limits Report (COLR) for VEGP UNIT 1 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 SHUTDOWN MARGIN - MODES 1 and 2 3/4.J.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 4 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 - F5 l

REV. 1 PAGE 1 of 13

..._---__ . _ ..,_ .__, _ . _ .._,__ _ ___m==_.;-_

__ .. .m _ __

q f

COLR for VEGP UNIT 1 CYCLE 6 l 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 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 Temnerature 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 ok/k/*F at 100 percent RTP. ,

4 The EOL/AR0}RTP-MTC shall be less negative than

-5.50 x 10 Ak/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-* 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 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 ,

shown in figure 3.

Based on full-power T-average in the range of 584.4 to 588.4*F, inclusive.

REV. 1 PAGE 2 of 13

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

4

! COLR for VEGP UNIT 1 CYCLE 6 i

I

i 2.6 Axial Flux Difference (Specification 3/4.2.1)

. (relaxed axial offset control (RAOC) methodology}

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

2 0

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

) I RTP !

j F,

2.7.1 F,(Z) s

K(Z) for P > 0.5 P

i i

RTP F,(Z) s

K(Z) for P $ 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,

KfZ) for P > 0.5 P

W(Z)

C RTP F (Z) s F.

KfZ) for P 5. 0.5 0.5

W(Z) 2.7.5 W(Z) values are provided in figures 6 through 8.

REV. 1 PAGE 3 of 13

COLR for VEGP UNIT 1 CYCLE 6 C

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

2.8 Nuclear Enthalov Rise Hot Channel Factor - F6 (Specification 3/4.2.3)

RTP 1 2.8.1 F1 :s; F, * (1 + PF ,* (1-P)) l where: P = THERMAL POWER :

I RATED THERMAL POWER 1

RTP 2.8.2a F, = 1.53 for LOPAR fuel and RTP 2.8.2b F. = 1.65 for VANTAGE 5 fuel i

2.8.3 PF , = 0.3 for LOPAR and VANTAGE 5 fuel 1

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l ks\wp\wogtla\ COLA.U3 REV. 1 PAGE 4 of 13 l 1

4 COLR FOR VEGP UNIT 1 CYCLE 6 5.00 g 4.00 ACCEPTABLE 3 OPERATING g REGION 5.

- (2500,3.1b 3.00 m

(1600,2.25) g 8 2.00 1

UNACCEPTABLE O 2 OPERATING E (950,1.30) REGION o 1.00 i E

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)

REV. 1 -

PAGE 5 of 13

COLR FOR VEGP UNIT 1 CYCLE 6 l

l 5.00 (2500,4.90)

$ 4.00 '

< ' ACCEPTABLE if OPERATING REGION 1

(1250,2.85) i 0

g 2.00 Y

5

@ UNACCEPTABLE

-m OPERATING g j REGION g 1.00 (460,1.00) 0.00 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)

REY. 1 PAGE 6 of 13

COLR FOR VEGP UNIT 1 CYCLE 6 (Fully Withdrawn *)

) hh0 (28.0 %, 225) (78.0%, 225)-

/ /

[ BANK B [

AF A f 180 7 7 T 160 (100%,161) g / /

/ /

[8ANK C [

E z 120

/ g

/

9 AF }

M / /

?'** / /

5 / /

$ [ [ BANK D 8

- / /

/ /

40 f(0%,46) [

/

20

' ' f

/

(30.2%, 0)[

0 20 40 60 80 100 POWER (percent of 3565 MWt)

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 REY. 1 PAGE 7 of 13

. . . . . ..- ._,n. -. -

l i

COLR FOR VEGP UNIT 1 CYCLE 6 l

l 120 l

l l

I' U' ' UI "' 0' ' 00) l 100 UNACCEPTABLE UNACCEPTABLE m l 8

2 80 ACCEPTABLE E 60 1 /

(+26,50)

\

J (-35,50) 5 40 g

iE Pu 4

m 20

.m 950 -40 -30 -

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

FIGURE 4 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER FOR RAOC REV. 1 PAGE 8 of 13

r COLR FOR VEGP UNIT 1 CYCLE 6 l

l 1.20 1.00 B

I 0.80 9

52 I

$ 0.60 e

d '

2

@ 0.40 Z Fa= 2.50

^

,N CORE E HEIGHT M 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 CORE HEIGHT (ft)

FIGURE 5 K(Z)- NORMALIZED Fo(Z) AS A FUNCTION OF CORE HEIGHT REV. 1 PAGE 9 of 13

I

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COLR FOR VEGP UNIT 1 CYCLE 6 l

Ax.ial Elevation BOL l

1.60 l Point (feet) W(z)

l 1 12.00 1.0000 i 2 11.80 1.0000 3 11.60 1.0000 4 11.40 1.0000 5 1120 1.0000 6 11.00 1.0000 1.50

7 10.80 1.0000 8 10.60 1.0000

9 10.40 1.0000 10 1020 1.0000 a 11 10.00 1.1795 12 9.80 1.1909 A 13 9.60 1.1953 14 9.40 1.1991 1.4C A 15 9.20 12011 16 9.00 12054 A 17 8.80 1.2159 18 8.60 1.2258 A 19 8.40 12343 20 8.20 12392 a 21 8.00 12468 1 30 -

"A.

22 23 7.80 7.60 1.2527 1.2555 R $a 24 25 7.40 7.20 1.2559 12539 A ""'

26 7.00 1.2497 N A '

A A

A[ (AA 27 28 6.80 6.60 1.2441 11371 A *^

29 6.40 1.2288 1.20 '6

^

T 30 6.20 12191 A 31 6.00 1.2094 k n 32 5.80 1.2000 33 5.60 1.1882 34 5.40 1.1762 35 5.20 1.1818 36 5.00 1.1%5 37 4.80 1?F8 1.10 38 4.60 iG2 39 4.40 1.2M2 40 4.20 12536 41 4.00 12646 42 3.80 12738 43 3.60 12818 44 3.40 1.2895 1*00 45 3.20 12989 46 3.00 13152 0 2 4 6 8 10 12 47 2.80 13393 48 2.60 13669 CORE HEIGHT (feet) 4y 2.

j j3y 51 2.00 1.4437 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 FIGURE 6

57 0.80 1.0000 58 0.60 1.0000 59 0.40 1.0000 RAOC W(Z) AT 150 MWD /MTU

60 0.20 1.0000 61 0.00 1.0000 Top and Bottom 15% Exduded per TNs figure is refern,d to by Technical Speolications 4.2.2.2d 83/4.2 2 REV. 1 PAGE 10 of 13 21751 i

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COLR FOR VEGP UNIT 1 CYCLE 6 SBT (1) SET (2) i SU1urcP '

(NWD/NT01: 14745 17000 14745 17000 Ao I% : 1.90 -1.94 -5.2 -5.24 Asial siev.

Point IFt.) )'

1 12.0 1.0000 1.0000 1.0000 1.0000

2 11.8 1.0000 1.0000 1.0000 1.0000 1

3 11.6 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 i

4 11.4 1.0000 '

5 11.2 1.0000 1.0000 1.0000 1.0000

6 11.0 1.0000 1.0000 1.0000 1.0000 i

7 10.8 1.0000 1.0000 1.0000 1.0000 l

8 10.6 1.0000 1.0000 1.0000 1.0000 This table is referred l

9 10.4 1.0000 1.0000 1.0000 1.0000 to by Technical specification

10 10.2 1.0000 1.0000 1.0000 1.0000 4.2.2.24, 53/4.2.2. Data l 11 10.0 1.2234 1.1845 1.3461 1.3159 is applicable over a camperature 12 9.8 1.2244 1.1837 1.3419 1.3092 ramee et 584.4 to 588 47. I i

13 9.6 1.2269 1.1844 1.3284 1.2925 14 # 9.4 1.2289 1.1866 1.3141 1.2771 15 '

9.2 1.2342 1.1938 1.3140 1.2786 16 9.0 1.2404 1.2057 1.3183 1.2889 17 8.8 1.244f 1.2169 1.3124 1.2893 18 8.6 1.2487 1.2272 1.2959 1.2780 19 8.4 1.2535 1.2419 1.2948 1.2866 20 8.2 1.2607 1.2609 1.3018 1.3059 21 8.0 1.2678 1.2777 1.3010 1.3142 22 7.8 1.3767 1.2904 1.2915 1.3069 23 7.6 1.2856 1.3003 1.2922 1.3076 24 7.4 1.2905 1.3067 1.2911 1.3074 25 7.2 1.2921 1.3098 1.2862 1.3038 26 7.0 1.2908 1.3099 1.2775 1.2964 27 6.8 1.2864 1.3070 1.2685 1.2888 28 6.6 1.2101 1.3028 1.2684 1.2909 29 6.4 1.2731 1.2988 1.2586 1.2840 30 6.2 1.2647 1.2937 1.2431 1.2716 31 6.0 1.2532 1.2868 1.2291 1.2620 ,

32 5.8 1.2416 1.2767 1.2152 1.2494 l 33 5.6 1.2338 1.2664 1.2043 1.2341 34 5.4 1.2374 1.2636 1.2041 1.2296 35 5.2 1.1444 1.2641 1.2074 1.2304 36 5.0 1.2493 1.2717 1.2093 1.2310 37 4.8 1.2527 1.2740 1.2111 1.2317 38 4.6 1.2554 1.2765 1.2132 1.2335 39 4.4 1.2557 1.2761 1.2126 1.2323 40 4.2 1.2537 1.2729 1.2125 1.2310 41 4.0 1.2505 1.2647 1.2131 1.2308 42 3.8 1.2456 1.2631 1.2107 1.2277 43 3.6 1.2401 1.2558 1.2028 1.2100 44 3.4 1.2354 1.2465 1.1917 1.2024 45 3.2 1.2278 1.2337 1.1847 1.1904 i 46 3.0 1.2271 1.2352 1.1837 1.1915 , l 47 2.8 1.2329 1.J451 1.1891 1.2009 l

48 2.6 1.2405 1.2529 1.1952 1.2091 49 2.4 1.2505 1.2645 1.2129 1.2264 l 50 2.2 1.2603 1.2758 1.2255 1.2406 51 2.0 1.2697 1.2867 1.2326 1.2491

52 1.8 1.0000 1.0000 1.0000 1.0000

53 1.6 1.0000 1.0000 1.0000 1.0000

$4 1.4 1.0000 1.0000 1.0000 1.0000

55 1.2 1.0000 1.0000 1.0000 1.0000

$6 1.0 1.0000 1.0000 1.0000 1.0000

57 0.8 1.0000 1.0000 1.0000 1.0000

58 0.6 1.0000 1.0000 1.0000 1.0000

59 0.4 1.0000 1.0000 1.0000 1.0000

60 0.2 1.0000 1.0000 1.0000 1.0000

61 0.0 1.0000 1.0000 1.0000 1.0000

Top and sotton 15% Excluded per Technical specification 4.2.2.2 j l

FIGURE 7 .

RAOC W(Z) AT 14745 MWD /MTU AND 17000 MWD /MTU, SETS 1 ANO 2 REV. 1 PAGE 11 of 13

COLR FOR VEGP UNIT 1 CYCLE 6 53T 138 8BT (el SURNUP tNwD/NTTI: 14745 17000 14745 17000 AO (%): 8.5 8.54 -11.5 -11.54 a Axial siev.

Point !Ft.l 1 12.0 1.2000 1.0000 1.0000 1.0000

2 11.8 1.0000 1.0000 1.0000 1.0000

3 11.6 1.0000 1.0000 1.0000 1.0000

4 11.4 1.0000 1.0000 1.0000 1.0000

5 11.2 1.0000 1.0000 1.0000 1.0000

6 11.0 1.0000 1.0000 1.0000 1.0000

7 10.8 1.0000 1.0000 1.0000 1.0000

,

8 10.6 1.0000 1.0000 1.0000 1.0000 This table is ref erred

9 10.4 1.0000 1.0000 1.0000 1.0000 to by Technical Specification

10 10.2 1.0000 1.0000 1.0000 1.0000 4.2.2.24. 83/4.2.2. Data 11 10.0 1.4687 1.4472 1.5801 1.5667 is applicable over a temperature 12 9.8 1.4593 1.4348 1.5461 1.5489 range of $84.4 to 588.47.

13 9.6 1.4300 1.4006 1.5223 1.4989 14 > 9.4 1.3992 1.3675 1.4766 1.4498

15 9.2 1.3937 1.3634 1.4662 1.4405 16 9.? 1.3962 1.3722 1.4671 1.4478 17 8.8 1.3800 1.3618 1.4414 1.4276 18 8.6 1.3431 1.3288 1.3861 1.3749

. 19 8.4 1.3361 1.3314 1.3737 1.3721

) 20 8.2 1.3430 1.3509 1.3804 1.3917 21 8.0 1.3341 1.3507 1.3643 1.3839 22 7.8 1.3063 1.3232 1.3197 1.3380 i 23 7.6 1.2989 1.3149 1.3049 1.3216 l 24 7.4 1.2917 1.3000 1.3922 1.3086 25 7.2 1.2803 1.2978 1.2749 1.2924 26 7.0 1.2642 1.2829 1.2521 1.2706 27 6.8 1.2506 1.2706 1.2343 1.2540 f 28 6.5 1.2567 1.2730 1.2461 1.2683 29 6.4 1.2441 1.2692 1.2310 1.2558 30 6.2 1.2214 1.2494 1.2017 1.2293 31 6.0 1.2049 1.2372 1.1830 1.2147 32 5.8 1.1889 1.2225 1.1649 1.1978 33 5.6 1.1747 1.2057 1.1478 1.1782

' 34 5.4 1.1708 1.1956 1.1405 1.1646 35 5.2 1.1704 1.1926 1.1367 1.1583

, 36 5.0 1.1694 1.1903 1.1330 1.1533 37 4.8 1.1695 1.1894 1.1317 1.1510 38 4.6 1.1709 1.1906 1.1325 1.1515 39 4.4 1.1695 1.1885 1.1302 1.1486 1.1891 40 4.2 1.1712 1.1337 1.1511 41 4.0 1.1757 1.1928 1.1417 1.1544 42 3.8 1.1759 1.1924 1.1442 1.1602 43 3.6 1.1654 1.1802 1.1315 1.1458 4

44 3.4 1.1480 1.1583 1.1083 1.1182 i

45 3.2 1.1415 1.1470 1.1023 1.1076 46 3.0 1.1403 1.1478 1.1000 1.1081 ,

y 47 2.8 1.1453 1 ,1566

. 1.1055 1.1164 48 2.6 1.1498 1.1613 1.1086 1.1Z17 49 2.4 1.1752 1.1884 1.1410 1.1538 50 2.2 1.1907 1.2054 1.1591 1.1733 51 2.0 1.1955 1.2115 1.1618 1.1773

$2 1.8 1.0000 1.0000 1.0000 1.0000

$3 1.6 1.0000 1.0000 1.0000 1.0000

54 1.4 1.0000 1.0000 1.0000 1.0000

55 1.2 1.0000 1.0000 1.0000 1.0000

56 1.0 1.0000 1.0000 1.0000 1.0000

57 0.8 1.0000 1.0000 1.0000 1.0000

58 0.6 1.0000 1.0000 1.0000 1.0000

19 0.4 1.0000 1.0000 1.0000 1.0000

60 0.2 1.0000 1.0000 1.0000 1.0000

61 0.0 1.0000 1.0000 1.0000 1.0000

Top and mottaa 15% azeluded per Technical specification 4.2.2.2 FIGURE 8 RAOC W(Z) AT 14745 MWD /MTU AND 17000 MWD /MTU, SETS 3 AND 4 REV. 1 PAGE 12 of 13

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

COLR for VEGP UNIT 1 CYCLE 6 TABLE 1 Fl(Z) PENALTY FACTOR Cycle Fl(Z)

Burnup Penalty (MWD /MTU) Factor 0 1.0357 150 1.0357 362 1.0340 I 574 1.0353 786 1.0342 998 1.0311 l 1210 1.0280 1422 1.0226 1634 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 per Technical Specification 4.0.2) starting from the burnup at which the Fl(Z) was determined.

2. Linear interpolation is adequate for intermediate cycle burnups.

3. For 311 cycle burnups outside the range of the table, a penalty factor of 1.0200 shall be used.

REV. 1 PAGE 13 of 13

ML20094E112

Text

0.5 where

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