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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I N2C10/RE Core Opertaing Limits Report, Rev.1 (Oct. 93)

Page 1 of 16 1

9311090173 931102

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PDR ADDCK 05000339 x

P PDR

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

3/4.2.2 Heat Flux Hot Channel Factor 1

3/4.2.3 Nuclear Enthalpy Rise Hot Channel Factor s

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.

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t 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 insertion as shown in Figure 1.

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J N2C10/RE Core Operating Limits Repon, Rev 1 (Oct 93)

Page 3 of 16

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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 (Z) (Specification 3/4.2.2) o 2.5.1 The F (Z) limits are:

o 2.19 I

  • K(Z) for P > 0.5 F (Z) s o

P s

F (Z) s 4.38

  • K(Z) for P s 0.5 o

l THERMAL POWER I

where:

P = -------------------

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

t 2.5.2 The F (Z) Surveillance limits are:

[

o 2.19 K(Z)

F (Z)" s ----

for P > 0.5 o

P N(Z)

K(Z) 1 F (Z)" s 4.38

  • ----- for P s 0.5 o

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

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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)]

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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

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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

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fi i

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g, l f, f,

i 20 if 4

4 fi M,

,f i

i i

-(14159 )

/i i

i 180

,f i e i,

f

/!

1m f4 f

f n-w i f i 170 fi z

4 f o too

,/'

l l

l f

E,is0

.,f i

i i

o, 140 f

f; f,

f

n. 13o i f i

,f, un IN 'f.

i i

i i i f

i i i

'fI fa.tLiam !

i i

t no f_...'.

g f----

3,,,

f, o

m 90 i

o, f;

i

,f

+

cf, g

i o 70 l

=

,f ao i

f i 50

.f, i

i i f i i f, i

i i i i

i f '

j y

i i

(

i

_ f,

_ f 3 i

i 1

y

, f, I

f i i i i

i 10 i

f.

i,

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

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

1.20f02 1.00402

(+6,100) 1

(-11,100) /

\\

Unacceptable g

/

I Operation o

" 8.00401

/

\\

i

/

\\

g g

Acceptable g

~

6.00401

/

Operation j

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(-24,50)

(+20,50)

I w

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 Ju

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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)

\\

Unacceptable 5g

/

)

Operation

" 8.00401

/

\\

I

[ Acceptable k j

\\

5

/

Operation

\\

7

, 6.00401

/

\\

E

/

\\

-- (-27,50)

(+20,50) m 4.00f01 E

El 2.00+01 i

l 0.00f00 4

-5.00+01

-3.00+01

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

)

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

Page 8 of 16 -

1-

-.m get--

-.-m--

s-p.-.

---ty g--

g--m-p

l FIGURE 4 i

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

1 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.

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j O

i i

W l

i N

I i

-O I

4 0.6 !

=

E i

g I

i i

l O

2 i

I G

.4.

i 0

g i

i i

i I

i l

i 1

I 0.2 l

l f

2 i

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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$

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6.20 1.114

'f 1,10400

\\

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

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FIGURE 6

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1.

N(Z) FUNCTION FOR N2C10 f

1 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

\\

[

I

~

8.80 1.177-8.60 1.181 I

8.40 1.185-I 8.20 1.187 ce 8.00 1.186

~

c 7.80

'1.185 7.60

- 1.181 l

5; 1.1400 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

(

-6.20 1.114 j

cr 9" 1.1D+0D

\\

6.00 1.098 EE 5.80 1.085 5.60 1.078 I

5.40 1.074 V-5.20 1.072 l

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 COREHElGHT(fi) 4.00 1.112 3

3.80 1.117 3.60 1.121 J

3.40 1.125 j

N2010/RE N(Z) FUNCil0N AT 1000-3000 MWD /NTUBURNUP 3.20.

1.132 3.00 1.141 2.80 1.149-2.60 1.157 2.40 1.164 2.20 1.171 2.00 1.178 I

1.80 1.184 i

N2C10/RE Core Operating Limits Report, Rev 1 (Oct 93)

Page 11 of 16 w-

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--4 e-g e-

+-rv-

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l 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 7.40 1.213

-s 5

/

\\/

7.20 1.207

\\

/

7.00 1.200

s 1.174:0 Il 6.80 1.193 y

6.60 1.189 g

j 6.40 1.184 h 1.15+;D

\\

[

6.20 1.176 6.00 1.169 w

z 5.80 1.158 E

5.60 1.146 f

5.40 1.133 5.20 1.121

-f 5.00 1.115 4.80 1.116 khl 4.60 1.119

_ 'u

' II,,

4.40 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

i FIGURE 8 N(Z) FUNCTION FOR N2C10 5000 - 7000 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 1.22+00 8.80 1.205 8.60 1.212 8.40 1.216 8.20 1.220

}

8.00 1.220

_s 7.80 1.220

[

7.60 1.217 h 1.18+00 7.40 1.213

e j

v 7.20 1.207

/

7.00 1.200 m

m E

6.80 1.193 f

SE 6.60 1.189 6.40 1.184 5

b 6.20 1.176 T 1.14+00

\\

5.80 1.158 6.00 1.169 5

5.60 1.146 5.40 1.133 5.20 1.121 g

/

5.00 1.115 4.80 1.116 4.60 1.119 1.10+00 4.40 1.118 f"

0.00+00 2.00+00 4.00+00 6.00+00 8.00+00 1.00101 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

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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) i 10.20 1.193 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 8.40 1.216 i

ec II 8.20 1.220 l'

cd 8.00 1.220 i

7.80 1.220 C

f 2; 1.18+00 7.60 1.217 7.40 1.213

\\/

55 7.20 1.207 EE 7.00 1.200

{}

/

6.80 1.193

[

6.60 1.189 l

6.40 1.184 1

5$

\\

6.20 1.176 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

\\/

4.80 1.116 1.10+00 v

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

l 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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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 i

9.40 1.179 9.20 1.188 1.24+00

/

\\

9.00 1.196 8.80 1.205 8.60 1.211 8.40 1.216 85

\\

8.20 1.222 I

8.00 1.227 S:

7.80 1.230 i

. 0+00 7.60 1.231 5l 7.40 1.239 ms 7.20 1.245 EE

[

7.00 1.248 l5 6.80 1.249 i

s,/

6.60 1.245 l

\\

6.40 1.241 53 6.20 1.231 de 1.16400

\\

6.00 1.222 El 5.80 1.206 5.60 1.190 l

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

4.40 1.132 l

0.00400 2.00400 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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FIGURE II N(Z) FUNCTION FOR N2C10 17100 MWD /MTU AND BEYOND HEIGHT N(Z)

(ft) l 10.20 1.169 10.00 1.166 9.80 1.159 9.60 1.157 9.40 1.160 9.20 1.171

/

9.00 1.183 1.24+0D

\\

8.80 1.196 8.60 1.207 8.40 1.215 o$

\\

8.20 1.223 8.00 1.227 g[

7.80 1.230 7.60 1.231 E; 1.20+0D 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

4.40 1.132 0.00+0D 2.00+00 4.00+00 6.00+00 5.00+0D 1.00401 4.20 1.134 COREHEIGHT(FI)

' 00 1 13' 3.80 1.133 3.60 1.131 3.40 1.129 N2010/REN(Z)FUNCTIONAT17100WWD/WTUANDBEYOND 3.20 1.131 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)

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