ML20211N981

From kanterella
Jump to navigation Jump to search
Rev 0 to Vegp,Unit 1,Cycle 8 Colr
ML20211N981
Person / Time
Site: Vogtle Southern Nuclear icon.png
Issue date: 07/31/1997
From:
SOUTHERN NUCLEAR OPERATING CO.
To:
Shared Package
ML20211N980 List:
References
NUDOCS 9710200008
Download: ML20211N981 (15)
v • d • e


Text

_ _ _ _ _ _ _ _ _ _ _ _ - - _ _ _ _ - - - - _ _ _ _ _ . _

. 4 e t

4 e

e V0GTLE ELECTRIC GENERATING PLANT (VEGP) UNIT 1 CYCLE 8 CORE OPERATING LIMITS REPORT REVISION O JULY 1997 9710200008 971013 ~

PDR ADOCK 05000424 P PDR;

1 1

1

. COLR for VEGP UNIT 1 CYCLE 8 i

1.0 CORE OPERATING LIMITS REPORT i This Core Operating Limits Resort (COLR) for VEGP UNIT 1 CYCLE 8 has been i prepared in accordance with t1e requirements of Technical Specification 5.6.5. I i l The Technical Requirement affected by this report is listed below: I 13.1.1 SHUTDOWN MARGIN - MODES I and 2 l l The Technical Specifications affected by this report are listed below:

l.

1

-3.1.1 SHUTDOWN MARGIN - MODES 3, 4 and 5 3.1.3 Moderator Temperature Coefficient

. 3.1.5 Shutdown Bank Insertion Limits l

i 3.1.6 Control Bank Insertion Limits 3.2.1 Heat Flux Hot Channel Factor - F,(Z) l 3.2.2 Nuclear Enthalpy Rise Hot Channel Factor - F N,,

3.2.3 Axial Flux Difference 3.9.1 Boron Concentration i

l l

i i

l-3 i

f PAGE 1 of 14

f '!Vf$$?Nl@$$W 4

COLR for VEGP UNIT 1 CYCLE 8 2.0 OPERATING LIMITS The cycle-specific parameter limits f'o r the specifications list 9d in section 1.0 are presented in the following subsections. These limits have been developed using the NRC-approved methodologies specified in Technical Specification 5.6.5.

2.1 SHUTDOWN 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 & /k.

2.2 StiUTDOWN 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 Temnerature Coefficient (Specification 3.1.3) 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 percent RTP with a linear ramp to 0 M/k/'F at 100 percent RTP.

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

-5.50 x 10 M/k/*F.'

2.3.2 The MTC Surveillance limits are:

The 300 ppm /AR0/RTP-MTC should be less negative than or equal to -4.75 x 10 M/k/'F '

The 60 ppm /AR0/RTP-MTC should be less negative than

-5.35 x 10 M/k/*F.'

where: BOL stands for Beginning of Cycle Life AR0 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 Bank Insertion Limits (Specification 3.1.5) 2.4.1 The shutdown banks shall be withdrawn to a position greater than or equal to 225 steps.

2.5 Control Bank Insertion limits (Specification 3.1.6) 2.5.1 The control banks shall oe limited in physical insertion as shown in figure 3.

' Based on full-power T-average of 586.4*F.

PAGE 2 of 14

COLR for VEGP UNIT 1 CYCLE 8 2.6 Heat Flux Hot Channel Factor - F,(Z) (Specification 3.2.1)

RTP 2.6.1 F,(Z) s

  • K(Z) for P > 0.5 P

RTP F,(Z) s

  • K(Z) for P s 0.5

0.5 where

P = THERMAL POWER RATED THERMAL POWER RTP 2.6.2 F. = 2.50 2.6.3 K(Z) is provided in figure 5.

RTP 2.6.4 F,(Z) s Ec

  • KfZ) for P > 0.5 P
  • W(Z)

RTP F,(Z) s E.

  • KfZ) for P $ 0.5 0.5
  • W(Z) 2.6.5 W(Z) values are provided in figures 6-through 9.

2.6.6 The F,(Z) penalty factors are provided in table 1.-

PAGE 3 of 14

. COLR for VEGP UNIT 1 CYCLE 8 2.7 Nuclear Enthalov Rise Hot Channel Factor - Ff,, (Specification 3.2.2)

RTP i 2.7.1 F1 s F., * (1 + PF,,,* (1-P))

I where: P = THERMAL POWER l RATED THERMAL POWER RTP 2.7.2a F.,, = 1.53 for LOPAR fuel, and RTP 2.7.2b F.,, = 1.65 for VANTAGE 5 fuel 2.7.3 P F.,, = 0.3 for LOPAR and VANTAGE 5 fuel 2.8 Axial Flux Difference (Specification 3.2.3) 2.8.1 The Axial Flux Difference (AFD) acceptable _ operation limits are provided in figure 4.

2.9 Boron Concentration (Specification 3.9.1) 2.9.1 The boron concentration shall be greater than or equal to 2035 ppm.'

'This concentration bounds the condition of k,,, s 0.95_(all rods in less the most reactive rod) and subcriticality (111 rods-out) over the entire cycle.

This concentration includes additional boron to address uncertainties and B" depletion.

PAGE 4 of 14

i i

l COLR for VEGP UNIT 1 CYCLE 8

TABLE 1 4

F,(Z) PENALTY FACTOR l Cycle F,(Z)

Burnup Penalty i (MWD /MTU) Factor 30 1.029 150 1.029 572 1.030 1204 1.030 ,

1415 1.026

[ 1626 1.023 l 1837 1.020 5000 1.021 5211 1.022 5421- 1.022 5843 1.021 6054 1.020 i

Notes:

1. The Penalty Factor, to be applied to F,(Z) in accordance with surveillance-requirement from specification 3.2.1, is the maximum factor by which F,(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) 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.

PAGE 5 of 14

COLR FOR VEGP UNIT 1 CYCLE 8 4

5.00 4.00 ACCEPTABLE OPERATING

{ REGION fg 3.00 REQUIRED (2500,3.1

~

Z SHUTDOWN g MARGIN (1600,2.25) j 2.00 8

$ UNACCEPTABLE I 2 OPERATING M (950,1.30) REGION 1.00 0 500 1000 1500 2000 2500 217bt 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

COLR FOR VEGP UNIT 1 CYCLE 8 5.00 -

(2500,4.90) 4.00

, ACCEPTABLE j OPERATING

< REGION E

b g 3.00

- (1250,2.85)

Z REQUIRED

@ SHUTDOWN

< MARGIN 3: 2.00 O

O 3 UNACCEPTABLE m OPERATING j REGION (460,1.00) 0.00 O 500 1000 1500 2000 2500 mu RCS BORON CONCENTRATION (ppm)

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

PAGE 7 of 14

COLR FOR VEGP UNIT 1 CYCLE 8 (Fully Withdrawn *)

hhD 28.0 %,225) (78.0%, 225)-

/ /

[ BANK B 180 f A f

U

{ 160 (100 %,161) 2 / /

g [ BANK C [

z 120 g

/ /

r O A A B'

2 /

/

/

/

$ / /

$ [ [ BANK D 8

    • / __ /

/ /

40 f(0%,46) [

20 /

(30.2%, 0)[

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

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

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

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

COLR FOR VEGP UNIT 1 CYCLE 8 120 0 0,100) 410,100) 100 UNACCEPTABLE UNACCEPTABLE "

[

is 80 '

f 3

/ \

3* ACCEPTABLE 60 i@

/

( 35,50)

\

(+26, 50) b 40 5

a 2

20 950 40 30 -20 -10 0 10 20 30 40 50 AXIAL FLUX DIFFERENCE (percent AI)

FIGURE 4 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER FOR RAOC PAGE 9 of 14

COLR FOR VEGP UNIT 1 CYCLE 8 j 1.20 <

I i

i 1.00 8 -

B 4

I 0.80 -

2 5

$ 0.60 e

d -

2

@ 0.40 Z Fa= 2.50 R 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 2 ""

CORE HEIGHT (ft)

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

COLR FOR VEGP UNIT 1 CYCLE 8 Asial Elevation BOL Point (feet) W(z)

,1 12.00 1.0000 1.6C ,

j .

i1.80 1.0000 i

  • t 3 11.60 1.0000 i 4 11 40 1.0000 5 11.20 1.0000 i l 6 11.00 1.0000 l 1 7 10.80 1.0000 l 8 10.60 1.0000 1.50
  • 9 10.40 1.0000 10 10.20 1.0000 11 10.00 1.3541 12 9.80 1.3354 13 9.60 1.3157 14 9.40 1.2984 15 9.20 1.2873 16 9.00 1.2/19 1.40 17 8.80 1.2645 18 8.60 1.2650 n 19 8.40 1.2638 m 20 8.20 1.2605 a 21 9.00 1.2551

' 2.2 7.80 1.2475 a A 2.? 7.60 1.2383 24 7.40 1.2272 1.30 . -

25 7.20 1.2148 p A 26 7.00 1.2014 3

A

!'i a g 27 28 6.80 6.60 1.1882 1.1752 a, g 29 6.40 1.1629 g a 30 6.20 1.1557 A A 31 6.00 1.1487 a

1.20 32 5.80 1.1436

& 33 5.60 1.1415

^ a A 34 5.40 1.1568

' 35 5.20 1.1699 A

' & 36 5.00 1.1820

  1. 37 4.80 1.1937 38 4.60 1.2043 39 4.40 1.2138 1.10 40 4.20 1.2223 41 4.00 1.2289 _

42 3.80 1.2360 43 3.60 1.2443 44 3.40 1.2512 45 3.20 1.2585 46 3.00 1.2678 47 2.80 1.2792 1.00 48 2.60 1.2949 0 2 4 6 8 10 12 49 2.40 1.3189 50 'O CORE HEIGHT (feet)

  • 51 E' 00 1'.3437 l3681 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 FIGURE 6

_58 0.60_ 1.m

  • 0.40 1.0000 59 RAOC W(Z) AT 150 MWD /MTU .

$ }'."ooo o

  • Top and Bottom 15% Excluded per TechnicalSpeofcat>on 3.2,1 This figure is referred a by Techrucal Specifcahon 3.2.1 PAGE 11 Of 14 21751

~ _

. COLR FOR VEGP UNIT 1 CYCLE 8 Axial Elevation slOL.1 Point (feet W(2)

. 6v,

  • i t I 1 12.00 1.0000
  • I *
2 11.60 1.0000 i l 3 11.60 1.0000 4 11.40 1.0000

, { 5 1120 1.0000 6 11.00 i.0000 i

  • i 7 10.80 1.0000 1.50
  • 8 10.60 1.0000 1 9 10.40 1.0000 l
  • 10 10.20 1.0000 l 11 13.00 1.4039 12 9.80 1.3758 13 9.60 1.3447 14 9.40 1.3114 15 9.20 1.2758 1.40 16 9.00 1.2522 17 8.80 1.2479

& 18 8.60 12503 19 8.40 12495 a 20 8.20 1.2467 4 21 8.00 12421 22 7.80 - 1.2354

& & 23 7.60 1.2269 1.30 a 24 7.40 12169 25 700 1.2056

& & 26 57 7.00 1.1930 A 27 6.80 -1.1807 g

., [

r- 28

'29 6.60 6.40 1.1691 1.1574

'& a 30 6.20 1.1473

& & 31 6.00 1.1399 1.20 -

a 32 530 1.1363

& 33 5.60 1.1365

d. ' . & 34 5.40 1.1487 A & 35 520 1.1614 k "g 36 37 5.00 4.80 1.1743 1.1872 38 4.60 1.1990

" 39 4.40 12p8 1*10 40 4.20 1.2195 41 4.00 12279 42 3.80 12350 43 3.60 1.2405 44 3.40 1.2451 45 320 1.2515 46 3.00 1.2579 1.00 47 2.80 1.2707 0 2 4 6 8 10 12 48 2.60 1.2908 49 2.40 1.3093 CORE HEIGHT (feet) 50 220 u301 51 2.00 1.3532 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 -

+

FIGURE 7 58 0.60 1.0000 59 0.40 1.0000 RAOC W(Z) AT 4000 MWD /MTU $ 828g $

' Top and Bottom 15% Excluded per Techrucal Specifcation 3.2.1 This fgure is referred to by Technical Specificaten 3.2.1 PAGE 12 Of 14 217M

.. COLR FOR VEGP UNIT 1 CYCLE 8 Anal Elevation MOL2 Potnt (feet) W(zl 1.6C 1 12.00 1.0000

.' 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 1.50

  • 9 10.40 1.0000 10 10.20 1.0000 11 10.00 12880 12 9.80 1.2850 13 9.60 1.2760 14 9.40 12658 15 9.20 1.2493 16 9.00 1.2283 1.40 17 g.go 1.2099 16 8.60 1.2034 19 8.40 1.2096 20 8.20 1.2124 21 8.00 1.2180 22 7.80 1.2245 23 7.60 1.2269 24 7.40 1.2270 1.30 p 25 7.20 1.2247 n

i p -

a A &

A 26 7.00 1.2200 27 6.80 1.2132 3 '

28 6.60 1.2046 "1 29 6.40 1.1942

%k a 30 6.20 1.1827 g

  • A"q(gl 31 6.00 1.1682 e 1.20  ;

4 ' 32 5.80 1.1606

' 33 5.60 1.1603 A 34 5.40 1.1682

't 35 5.20 1.1780 36 5.00 1.1890 37 4.80 1.1997 38 4.60 1.2086 39 4.40 1.2160 1.10 40 4.20 1.2218 41 4.00 1.2258 42 3.80 1.2283 43 3.60 1.2289 44 3.40 1.2286 45 3.20 1.2313 46 3.00 1.2383 47 2.80 1.2482 1.00 48 2.60 1.2588 0 2 4 6 8 10 12 49 2.40 1.2687 CORE HEIGHT (feet) 5$

52

$N 1.80

!S!

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 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
  • Top and Bottom 15% Excluded per TechnicalSpecteation 3.2.1 TNs fgure is referred to by To:hnical Specification 3.2.1 PAGE 13 Of 14 2175 1

COLR FOR VEGP UNIT 1 CYCLE 8 Asial Elevation EOL Point (feet)- WW 1*6C -

i 1 12.00 1.0000

! } 2 11.80 -1.0000-I '

1 3 11.60 1.0000 I

  • I 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 1.50 .

9 10.40 10000 ,,

10 10.20 1.0000 11 10.00 1.2318 12 9.80 1.2155 13 9 60 1.2058 14 9.40 1.2085 15 9.20 1.2081 16 9.00 1.2109 1.40 i 17 8.80 1.2165 l 18 8,60 1.2250 19 8.40 1.2412 20 8.20 1.2548 21 8.00 -1.2654 22 7.80 1.2738 23 .7.60 1.2793 1.30 24 7.40 12821 o 25 720 12821 g a a a g% 26 7.00 1.2801

- *g d6

^

27 6.80 1.2767 3 i

& ,h*

a 28 6.60 1.2729 A' " 29 6.40 12688 4 & 30 6.20 1.2633 1.20 QA 31 32 6.00 5.80 1.2566 1.2465 33 5.60 1.2379 34 5.40 1.2375 35 520 12424 36 5.00 12486 37 4.80 1.2543 38 4.60 1.2589 39 4.40 1.2609 1.10 40 4.20 1.2605 41 4.00 1.2578 42 3.80 1.2528 43 3.60 1.2456 44 3.40 1.2367 45 3.20 1.2284 46 3.00 1.2298 47 2.80 1.2395 1.00 l 0 2 4 6 8 10 12 $ f,$ $j 50 1.2781 CORE HEIGHT (feet) 51 E'.'O 00 12913 52 1.80 1.0000

  • 1.0000 53 1.60 54 1.40 1.0000

$5 1.20 1.0000

  • 56 1.00 1.0000 57 0.80 1.0000 FIGURE 9
  • 58 0.60 1.0000
  • 59 -0.40 1.0000 60 020 1.0000 RAOC W(Z) AT 19000 MWD /MTU
  • 61 0.00 1.0000
  • Top and Bottom 15% Excluded per Techrucal Speahcanon 3.2.1 This figure is referred to by Techrucal Specificabon 3.2.1 PAGE'14 Of 14 tw

- _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ -

Retrieved from "https://kanterella.com/w/index.php?title=ML20211N981&oldid=3247729"