ML20059G895

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COLR for North Anna 2 Cycle 10 Pattern Re, Rev 1
ML20059G895
Person / Time
Site: North Anna Dominion icon.png
Issue date: 10/31/1993
From:
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML20059G842 List:
References
NUDOCS 9311090173
Download: ML20059G895 (16)
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Text

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ATTACHMENT 1  ;

CORE OPERATING LIMITS REPORT NORTH ANNA 2 CYCLE 10 PATTERN RE 1

REVISION 1 OCTOBER 1993 i

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l N2C10/RE Core Opertaing Limits Report, Rev.1 (Oct. 93) Page 1 of 16 1

9311090173 931102  ;?

PDR ADDCK 05000339 x P PDR  ; l

CORE OPERATING LIMITS REPORT N2C10 Pattern RE 1.O INTRODUCTION 1

5 The Core Operating Limits Report (COLR) for North Anna Unit 2 Cycle 10 has been prepared in accordance with the requirements of

~

Technical Specification 6.9.1.7. The Technical Specifications affected by this report are listed below:

3/4.1 1.4 Moderator Temperature Coefficient l 3/4.1.3.5 Shutdown Bank Insertion Limit l 3/4.1.3.6 Control Bank Insertion. Limits  ;

3/4.2.1 Axial Flux Difference l 1

3/4.2.2 Heat Flux Hot Channel Factor  !

s 3/4.2.3 Nuclear Enthalpy Rise Hot Channel Factor and Power Factor Multiplier l

The cycle-specific parameter limits for North Anna 2 Cycle 10 for the specifications listed above are provided on the following  ;

pages, and were developed - using the - NRC-approved methodologies  !

specified in Technical Specification 6.9.1.7. j i

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N2C10/RE Core Operating Limits Repon, Rev 1 (Oct 93) Page 2 of 16

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

j 2.O OPERATING LIMITS 2.1 Moderator Temperature Coefficient (Specification 3/4.1.1.4) 2.1.1 The moderator temperature coefficient (MTC) limits are: I The BOC/ARO-MTC shall be less positive than or equal to

+0.6E-4 Ak/k/ F below 70 ' percent of RATED THERMAL ,

POWER.

The BOC/ARO-MTC shall be less positive than or equal ,

to 0.0 Ak/k/"F at or above 70 percent of RATED' THERMAL l POWER.  ;

The EOC/ARO/RTP-MTC shall be less negative than

-5. 0E-4 Ak/k/'F.

I 2.1.2 The MTC Surveillance limits are:  !

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

equal to -4. 0E-4 Ak/k/'F. <

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

equal to -4.7E-04 Ak/k/'F. l where: BOC - Beginning of Cycle ARO - All Rods Out '

EOC - End of Cycle i RTP - RATED THERMAL POWER ,

i 2.2 Shutdown Bank Insertion Limit (Specification 3/4.1.3.5) i 2.2.1 The shutdown rods shall be withdrawn to at least 225 steps. ,

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2.3 Control Bank Insertion Limits (Specification 3/4.1.3.6) 2.3.1 The control rod banks shall be limited in physical  ;

4 insertion as shown in Figure 1.

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I N2C10/RE Core Operating Limits Repon, Rev 1 (Oct 93) Page 3 of 16 J

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t 2.4 Axial Flux Difference (Specification 3/4.2.1)-

2.4.1 The AXIAL FLUX DIFFERENCE Limits are provided in  !

Figures 2 and 3.

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2.5 Heat Flux Hot Channel Factor-F o (Z) (Specification 3/4.2.2) 2.5.1 The F o (Z) limits are:

2.19 I Fo (Z) s ----

  • K(Z) for P > 0.5  !

P s Fo (Z) s 4.38

  • K(Z) for P s 0.5 -

l THERMAL POWER I

, where: P = ------------------- , and  !

RATED THERMAL POWER K(Z) is provided in Figure 4.

t 2.5.2 The F o (Z) Surveillance limits are: [

2.19 K(Z)

F o (Z)" s ---- *----- for P > 0.5 l' P N(Z)

K(Z) 1 Fo (Z)" s 4.38 * ----- for P s 0.5

  • N(Z)  !

THERMAL POWER

where
P = ------------------- , and i RATED THERMAL POWER N(z) values are provided in Figures 5 through 11.

, Top and bottom 15% of the core is excluded as per Technical Specification 4.2.2.2.G.

N2C10/RE Core Operating Limits Report, Rcv 1 (Oct 93) Page 4 of 16

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

2 . ,6 Nuclear Enthalpy Rise Hot Channel Factor'- F ,"'

and Power Factor Multiplier (Specification 3/4.2.3) i Fan" s 1.49 * [1 + 0.3 * (1 - P)] l 1

THERMAL POWER {

where: P'= -------------------

i RATED THERMAL POWER  ;

)

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t N2C10/RE Core Operating Limits Report, Rev 1 (Oct 93) Page 5 of 16 t

)

FIGURE 1 l NORTH ANNA UNIT 2 CYCLE 10 CONTROL ROD BANK INSERTION LIMITS VS. PERCENT RATED THERMAL POWER '

t 4

2 FULLY WITHDRAWN = 225 230, , i ,

, , , , , - - - , . , i fi '

i l f, i g, , , ,

i i i

i

, i , , f, ,

20 , , ,

if ,

M, 4 4 fi , ,

, , ,f < i

, , i i

/i i i

-(14159 )  !

180 i e i , ,f <

/! - f 1m ,

f ,

f4 ,

f n- w i f i 170 fi z 4 f , ,

o too ,/' l l l , ,

f E,is0 ,,

i i

i

. ,f '

o, 140 f,

f , ,

, , , f; ,

f

n. 13o i f . , , , , ,

i i i , ,f, ,  ;

, , i f un IN 'ffa.tLiam

. i i , . - ,

! i i t i i i '

'fI  !

f_...'.

g no . '. , , -

3 ,,,

, , . f---- ,

om 90 f, , ,

i , i o,

,f f; ,

g + cf,

' ' ! i o 70 l

= , , , ,f , , ,

ao i , ,, , , ,

f i , , ,

50 .f, i i i  ;

f i , ,

i f, i i i i i i j y f '  !  ! i i ( , i

_ f, , , , , , , ,

y _ f 3

, f, , ,

i  !

i 1

I i i 10 f i , , , , , , ,

i i

i , , .

i f. . , , ,

0 0.0 0.1 0.2 0.3 OA 0.5 0.6 0.7 0.8 0.9 1.0 FRACTION OF RATED THERMAL POWER N2C10/RE Core Operating Limits Report, Rev 1 (Oct 93) Page 6 of 16 l l

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FIGURE 2 N2C10 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER (BOC to 5000 MWD /MTU) l i

i 1.20f02 l 1.00402 (+6,100) 1 g

(-11,100) / \ '

Unacceptable o

" 8.00401 /

/ I

\

Operation i

g g

/ Acceptable \ g

~

6.00401 / Operation j  !

l

_O .

l 5 (-24,50) (+20,50) I w l 4.00401 E

U m

2.00401 0.00f00

-5.00401 -3.00401 -1.00+01 1.00401 3.00401 5.00401 PERCENTFLUXDiffERENCE(DELIA-l)

N2C10/RE AfD LlW115 - BOC 10 5000 HD/WTU N2C10/RE Core Operating Limits Report, Rev 1 (Oct 93) Page 7 of 16

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1 FIGURE 3 I

N2C10 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER (5000 MWD /MTU to EOC) ~ ,

a j

6 1.20402 '

1 1.00+02 (-11,100) (+6,100) '

5 g

/

\)

Unacceptable Operation

" 8.00401 / \ I

[ Acceptable k j $  ;

\

5

, 6.00401

/ Operation \  !

7 / \  ;

E m

-- (-27,50) / \ (+20,50)  ;

4.00f01 E

El l 2.00+01 '

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l 0.00f00 4

-5.00+01 -3.00+01 -1.00+01 1.00401 3.00401 5.00+01 PERCENTFLUXDiffERENCE(DELTA-1)  :

l

)

N2C10/RE AfD LIMlIS - 5000 WWD/WTU 10 EOC N2C10/RE Core Operating Limits Report, Rev 1 (Oct 93) Page 8 of 16 -

l 1- -$ -.m - get-- -.-m-- s-p.-. ---ty -- g-- g--m- p

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l FIGURE 4 l i

K(Z) - NORMALIZED Fe AS A FUNCTION OF CORE HEIGHT 4

1 l

. 1.2 ,

i .

! l  !  ! ,

i l l i l

1.0 , . i ,

. 2 i M,1.80 l i R  ;

(32, o.sas)

~ 0.8 O . , ,

u. ,

i ,

i

' ' j O i

' i i j W ,

i' l

N

- I i O I 4 0.6 ! =

E '

i  !

g I ,

' l O  !  ! , i i 2 ,

i I  !  !

G 0 .4 .

i g ,

i i .

i i .  !

I i  !

' 1 i  !

l I

0.2

! l  !  !

! 2 l f i

i  :  !

i i , .

0.0 '

O 1 2 3 4 5 6 7 8 9 10 11 12 CORE HEIGHT IN FT N2C10/RE Core Operating Limits Repon, Rev 1 (Oct 93) Page 9 of 16 4

I FIGURE 5 N(Z)FUNCTIbNFORN2C10 l 0 - 1000 MWD /MTU BURNUP  !

HEIGHT N(Z) i (ft) [

t 10.20 1.165 10.00 1.165 {

9.80 1.171 l 9.60 1.175 9.40 1.177 9.20 1.178 9.00 1.177 1.18+0D \ [ 8.80 1.177 l

\-

8.60 1~.181 l 8.40 1.185 j 8.20' 1.187 t

$m_

8.00 1.186  ;

E[ 7.80 1.185

7.60 1.181 es 1.14+00 7.40 1.175 #

7.20 1.169  !

E! 7.00 1.160 6.80 1.151 -

S? 6.60 1.140- '

I \s 6.40 1.128 5$

1,10400

( 6.20 1.114  ;

'f \ 6.00 1.098 E5 5.80- 1.085 i 5.60 1.078  !

5.40 1.074 5.20 1.072 j 5.00 1.077 4.80 1.084 l 1.0E+00 4.60 1.093_ l 4.40 1.100 '

O.00+00 2.00+00 4.00f00 6.00f00 8.00+0D 1.00101 4.20 1-106 i

4.00 1.112 COREHEIGHT(fi) 3.80 1.117 3.60 1.121 3.40 1.125 3 20 . 32 N2C10/REN(Z)FUNCTIONAI0-1000 MWD /WTUBURNUP 9 2.80 1.149 2.60 1.157 2.40 1.164 2.20 1.171 2.00 1.178 1.80 1.184 N2C10/RE Core Operating Limits ' Report, Rev 1 (Oct 93) Page 10 of 16

~. . _ _ _ _ _ -1 '

4 __ . . . . _ . _ . _ . _ _ _ _ . _ _ . -. _ _ _ . _

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FIGURE 6

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1. N(Z) FUNCTION FOR N2C10 1 f 1000 - 3000 MWD /MTU BURNUP i HEIGHT N(Z)

} (ft) i )

. 10.20 1.165 l 10.00 1.165 1 9.80 1.171 I 9.60 1.175 l 1

a 9.40~ -1.177 i 9.20 1.178 1

' 9.00 1.177 l 1.15+00 \ [ ~

8.80 1.177- '

I '

8.60 1.181

  • I 8.40 1.185- I ce  ! -

8.20 1.187 '

8.00

~ 1.186 c

7.80 '1.185 5; 1.1400 7.60 - 1.181 l

7.40 1.175  !

) 7.20_ 1.169 l E5 7.00 1.160 EE 6.80 1.151.

55 6.60 1.140

(( \ 6.40 -1.128- -j cr 9" 1.1D+0D

(\ -6.20 1.114 j 6.00 1.098 EE

5.80 1.085 5.60 1.078 I '

5.40 1.074 5.20 1.072 l V- 5.00 1.077

4.80 1.084 1.05+0D 4.60 1.093 4.40 1.100 0.00400 2.00+00 4.00f00 6.00+0D B.00f00 1.00f01 4.20 1.106 3

COREHElGHT(fi) 4.00 1.112 3.80 1.117 J 3.60 1.121 3.40 1.125 j 3.20. 1.132 N2010/RE N(Z) FUNCil0N AT 1000-3000 MWD /NTUBURNUP 3.00 1.141 2.80 1.149-2.60 1.157 2.40 1.164 2.20 1.171 l 2.00 1.178 1.80 1.184 I i

N2C10/RE Core Operating Limits Report, Rev 1 (Oct 93) Page 11 of 16 e- +-rv- "d vi--

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. I FIGURE 7  !

1 N(Z) FUNCTION FOR N2C10 3000 - 5000 MWD /MTU BURNUP HEIGHT N(Z)

(ft) 10.20 1.193 10.00 1.183  !

9.80 1.177 9.60 1.176 9.40 1.179 9.20 1.188 9.00 1.197 8.80 1.205 1 21+;0 / \. 8.60 1.212

/, 8.40 1.216

\. 8.20 1.220 5 /

8.00 1.220 Z 1.19 CD / \ f 7.80 1.220

[- / \ / 7.60 1.217

-s \ / \ s 7.40 1.213 5 '

/ \/ 7.20 1.207

s 1.174:0 Il

\ / 7.00 1.200 6.80 1.193 y 6.60 1.189 g j 6.40 1.184 h 1.15+;D \ [ 6.20 1.176 w 6.00 1.169 z 5.80 1.158 E 5.60 1.146

    1. f 5.40 1.133 5.20 1.121 5.00 1.115

-f 4.80 1.116

' II _,, 'u khl 4.60 4.40 1.119 1.118

.00+0D 2.00+0D 4.00+00 6.00f00 8.00f00 1.00401 4 00 113 COREHEIGHT(fi) 3.80 1.115 3.60 1.121 )

3.40 1.125 3.20 1.132 N2C10/REN(Z)fUNCTIONAT 3000-5000 VWD/WTUBURNUP3.00 1.141 2.80 1.149 2.60 1.157 2.40 1.164 2.20 1.171 2.00 1.178 1.80 1.184

, N2C10/RE Core Operating Limits Report, Rev 1 (Oct 93) Page 12 of 16

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i FIGURE 8 N(Z) FUNCTION FOR N2C10 5000 - 7000 MWD /MTU BURNUP HEIGHT N(Z)

(ft) I 10.20 1.193  !

10.00 1.183 9.80 1.177 9.60 1.176 9.40 1.179 9.20 1.188 9.00 1.197 1.22+00 8.80 1.205 8.60 1.212 8.40 1.216 8.20 1.220

}

_s

, 8.00 1.220 7.80 1.220

[ 7.60 1.217 h 1.18+00 , 7.40 1.213

e m

j v 7.20 1.207 m / 7.00 1.200 E 6.80 1.193 SE f 6.60 1.189

!" 6.40 1.184 5 b 6.20 1.176 T 1.14+00 \ 6.00 1.169 5

5.80 1.158 5.60 1.146  !

5.40 1.133 5.20 1.121 g / 5.00 1.115 4.80 1.116 1.10+00 4.60 1.119

, 4.40 1.118  :

0.00+00 2.00+00 4.00+00 6.00+00 8.00+00 1.00101 f",

COREHEICHT(FT) 3.80 1.107  ;

3.60 1.103 '

3.40 1.103 3.20 1.109 )

N2C10/REN(Z)FUNCil0NAT5000-7000 HD/WIUBURNUP 3.00 1.115 2.80 1.122 2.60 1.126 2.40 1.133 2.20 1.140 2.00 1.146 1.80 1.152 l

l l N2C10/RE Core Operating Limits Report, Rev 1 (Oct 93) Page 13 of 16

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FIGURE 9 '

N(Z) FUNCTION FOR N2C10 $

7000 - 9000 MWD /MTU BURNUP HEIGHT N(Z)  !

(ft) 10.20 1.193 i'

10.00- 1.183 i 9.80 1.177  !

9.60 1.176 }

9.40 1.179  !

.9.20 1.188 [

1.22+00 9.00. 1.197  !

8.80 1.205 i 8.60 1.212  !

ec 8.40 1.216 i II 8.20 1.220 l cd i

8.00 1.220 C 7.80 1.220 2; 1.18+00 f' 7.60 1.217

, 7.40 1.213

\/ 7.20 1.207 55  !

EE 7.00 1.200  !

/ 6.80 1.193 [

{} 6.60 1.189 l

6.40 1.184 5$ \ 6.20 1.176 1

l 9f 1.14+00 \

E5 6.00 1.169 l

  • 5.80 1.158 i 5.60 1.146 l 5.40 1.133 l 5.20 1.121  !

/' '# 5.00 1.115  !

1.10+00

\/

v 4.80 1.116 4.60 1.119 ,

4.40 '1.118 0.00+00 2.00+00 4.00+00 6.00+00 8.00+00 1.00+01 4.20 1.117 COREHEIGHT(FT) .' 00 1 113 3.80 1.107 3.60 1.103 3.40 1.103 l '

N2C10/REN(Z)TUNCIl0NAT7000-9000 WWD/NTUBURNUP 3.20 1.109.

3.00 1.115 2.80 1.122 2.60 1.126 2.40 1.133-2.20 -1.140 2.00 1.146 1.80 1.152 N2C10/RE Core Operating Limits Report, Rev 1 (Oct 93) Page 14 of 16

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r i FIGURE 10 N(Z) FUNCTION FOR N2C10 9000 - 17100 MWD /MTU BURNUP HEIGHT N(Z)

(ft) 10.20 1.193 10.00 1.183 9.80 1.177 9.60 1.176 l i

' 9.40 1.179 l 9.20 1.188 l 1.24+00 / \ 9.00 8.80 1.196 1.205 l

8.60 1.211 8.40 1.216 85 8.20

\ 1.222 I

8.00 1.227 S:

7.80 1.230

. 0+00 7.60 1.231 i

5l , 7.40 1.239 l

ms 7.20 1.245 EE

[ 7.00 1.248 l5 6.80 1.249

s,/

6.60 1.245 i

l 53 \ 6.40 6.20 1.241

\

1.231 de 1.16400 6.00 1.222 El 5.80 1.206 l

5.60 1.190 l 5.40 1.169 5.20 1.145 y  ! 5.00 1.131 4.80 1.128 1.12400 4.60 1.129 i

0.00400 2.00400 4.40 1.132 l 4.00f00 6.0D400 8.00100 1.00401 4.20 1.134 l COREHEIGHT(FI) 4.00 1.134 3.80 1.133 3.60 1.131 3.40 1.129 N2C10/REN(Z)FUNCil0NAT9000-17100 WWD/WIUBURNUP 3.20 1.131 3.00

! 1.130 2.80 1.132 2.60 1.139 2.40 1.14'9 2.20 1.158 2.00 1.166 1.80 1.174 l

N2C10/RE Core Operating Limits Report, Rev 1 (Oct 93) Page 15 of 16

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l FIGURE II l N(Z) FUNCTION FOR N2C10 '

17100 MWD /MTU AND BEYOND HEIGHT N(Z)

(ft) l l

l 10.20 1.169 10.00 1.166 l 9.80 1.159  !

9.60 1.157 9.40 1.160 l 9.20 1.171 l 1.24+0D /\

9.00 8.80 1.183 1.196

)

8.60 1.207 1 8.40 1.215 i o$

\ 8.20 8.00 1.223 I g[ 1.227 7.80 1.230

7.60 1.231 E; 1.20+0D l

' 7.40 1.239 7.20 1.245 E5 7.00 1.248 6.80 1.249 52 6.60 1.245  !

f 6.40 1.241 l} k f 6.20 1.231 "f 1.15+00 \ / 6.00 1.222 l5 N' 5.80 1.206

't 5.60 1.190  ;

5.40 1.169 5.20 1.145

/ 5.00 1.131 )

Mk 4.80 1.128 1.12400 t 4.60 1.129 4.40 4

1.132 0.00+0D 2.00+00 4.00+00 6.00+00 5.00+0D 1.00401 4.20 1.134

' 00 1 13' COREHEIGHT(FI) 3.80 1.133 3.60 1.131 3.40 1.129 3.20 1.131 N2010/REN(Z)FUNCTIONAT17100WWD/WTUANDBEYOND 3.00 1.130 2.80 1.132 2.60 1.139 2.40 1.149 2.20 1.158 2.00 1.166 1.80 1.174 N2C10/RE Core Operating Limits Report, Rev 1 (Oct 93) Page 16 of 16

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