ML20066F954

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1,Cycle 9,Pattern R8 Core Surveillance Rept
ML20066F954
Person / Time
Site: North Anna Dominion icon.png
Issue date: 01/18/1991
From:
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML20066F953 List:
References
NUDOCS 9101240289
Download: ML20066F954 (11)
v • d • e


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North Anna 1 Cycle 9, Pattern R8 Core Surveillance Report l

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9101240289 91011s PDR ADOCK 05000338 P

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NORTH ANNA UNIT 1 CYCLE 9 CORE SURVEILLANCE REPORT This Core Surveillance Report is provided in accordance with Section i

6.9.1.7 of the Worth Anna Unit 1 Technical Specificat4 5ns.

The burnup-dependent Cycle 9 N(z) function for Technical Specification 4.2.2.2.C is shown in Figures 1-7.

N(z) was calculated according to the procedure of VEP-NE-1-A.

The N(z) function

  • will be used to confirm that the heat flux hot channel factor, FQ(z), will be limited to the Technical Specifications values of FQ(z) s -------(z) 2.19 K P > 0.5 and i

P FQ(z) s 4.38 K(Z),

P s 0.5.

i The Cycle 9 Axial Flux Difference (AFD) limits for Technical Specification 3.2.1 are shown in Figures 8 and 9.

These limits were calculated ac-cording to the methods of VEP-NE-1-A and are comparable to the previous Cycle 8 limits.

I

'he limits ca Axial Flux Dif ference assure that the FQ(z) upper bound envelope is not exceeded during either normal operaticn or in the event of xs,cn redistribution following power changes.

l

  • The N(z) function, when applied to a power distribution measured under I

equilibrium conditions, demonstrates that the initial conditions assumed i

ir. the LOCA analysis are met, along with the ECCS acceptance criteria of 10CFR50.46.

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GURE 1 - N(Z) FUNCTION FOR NIC9 ".T 1893 MW FROM 0 to 1000 MWD /MTU BtWid TOP AND BOTTOM 15 PERCENT EXCLUDED AS PER TECH SPEC 4.2.2.2.G HEIGHT N(Z)

(FEET) 10.20 1.196 1.250 10.00 1.189 9.80 1.179 9.60 1.173 l

9.40 1.178

{

9.20 1.190 9.00 1.197 1.225 8.80 1.201 8.60 1.204

~

8.40 1.203

)

8.20 1.202

~~

8.00 1.198 7.80 1.194 5 1.200 h,,

7.60 1.188

/

7.40 1.180 E

/

7.20 1.171 i

7.00 1.160 1

6.80 1.148 l

as 1.175

.i 6.60 1.136 i,

/

v 6.40 1.121 e

/

6.20 1.116 a

f 6.00 1.110 5.80 1.108

)

5.60, 1.107

_ 3 ' ig I

5.40 1.111 N

5.20 1.116 3

5.00 1.123 l

4.80 1.130 c

4.60 1.136 4.40 1.141 1.125 4.20 1.144

/

4.00 1.147 3.80 1.149

[

3.60 1.152 3.40 1.459 3.20 1.168 1.100-3.00 1.176 2.80 1.184 0

1 2

3 4

5 6

7 8

9 10 11 12 2.60 1.191 2.40 1.198 Core Ha. ht=, feet ig 2.20 1.204 2.00 1.210 1.80 1.215

FIGURE 2 - N(Z) FUNCTION FOR NIC9 AT 2893 MW FROM 1000 to 3000 MWD /HTU BURNUP TOP AND BOTTOM 15 PERCENT, EXCLUDED-

-AS PER Tr.CH SPEC 4.2.2.2.G HEIGHT ---

N(Z)

(

(FEET)-

1 10.20

=1.196 l

10 00:

1.189-I 1.250 9.80-1.179

)

9.60

'1.173 1

9.40 1.178 1

i

--- 9. 2 0 -

1.190 9.00 1.197 8.80=

-1.201 1.225 8.60 1.204 l

g 8.40 1.203

\\

8.20

- 1,202 1

vz 8.00-1.198 1

\\

-7.804 1.194

\\

A

'7.60 1.188 u* 1.200

'l

- 7.40' 1.180 3

/L 7.20

1.171 n.

7.00 1,165-Z 6.80' 1.162 6.60 1.158~

$ 1.175 6.40 1.152-

/

6.20-1.143 E

6.00l 1.130

.3 5,80 1.121 5.60

.1.119 ---

.t 5.40-

- 1.120

- 1.150 3

-5.20

-1'119 q

'5.00 1.122 er 4.80 1.129-5 4.60 1.136 :

4.40 1.141 z

1.125 j

-4.20-1.144-

\\

j 4,00 1,347 W

3.80 1.149 3.60 1.152:

3,40 11.159 3.20-1.168:

1.100i 3.00

1.176' 2.80

-1.184 0-1 2

3 4

5 6

7 8

9 10 11-12 2.60-1.191-2.40-1.198 Core Height, Feet 2.20 1.204 2.00 1.210 1.80 1.215

r FIGURE-3-N(Z)FUNCTIONFORNIC9AT2893HW FROM 3000 to 5000 MWD /MTU BURNUP TOP AW BOTTOM 15 PERCENT EXCLUDED-AS PER TECH SPEC 4.2.2.2.0 l

HEIGHT N(Z);

(FEET) 10.20 1.196-1.260 10.00-1.189

=-

9.80-1.179 l

9.60 1.173-1 9.40-

-1.178 9.20-1.190 1

9.00

1.197 1.225

'8.80 1.201 j

Q 8.60 1.203 i

'v 8.40 1.203-

]

Z 8.20 l'202-8.00 1

1.198

.',' goo n

7.80

!1.193-3 T

-7.60 1.189

/

7.40 1.187 i

.S

-7.20'

--1.183 '

7.00~-

.1.178

'6.80 1.173 l

$1.175 6.60' 1.166 6.40' 1.156_

L@

6.20 1.145 l

6.00 1.131 j;

\\

5.80-1.121.

i

(

5.60 1.120

- 1.150 5.40 1.120-

-5.20

1.119' 5.00-1.120 4.80-

'_1.121 o-4.60 1.121.

1.125

-)

4.40 1.120

\\

'1 4.20 1.118

[

4.00' 1.115-

-3.80

'1 ;111-

3.60 1.108 i

3.40l 1.106

{

3,gog.

3.20~

1.113-4--

3;06 1.120 i.

o 1

2 3

4 5

6 7

e s

to it 12

2. P.0 1.129 2;60 1.137.

J Core Height, feet 2.40 1.144

-2.20-il'150 2.00-1.156 1.80.

1.161-t-

.. ~. -.. -... - -...

e 1

]

1 i

FIGURE 4 - N(Z) FUNCTION FOR N1C9 AT 2893 MW 3

FROM 5000 to 7000 MWD /MTU BURNUP TOP AND BOTTOM 15 PERCENT EXCLLUED AS PER TECil SPEC 4.2.2.2.G HEIGHT N(Z)

- t l

(FEET)

-t 10.20-

-1.177

-i 10.00

.1.176 t

1.250 9.80 1.174' 9.60-

'1.176 9.40 1.182.

9. 20.-

1.186-9.00 1.188 l

1.225 8.80-

.l.192 t-h 8.60 1.200-

)

^

O 8.40-1 208-z 8.20:

.1.215 8.00'-

1.219 w

7.80 1~.223 I

  • 1*'00 7.60 1.224

~

'7.40:

1.223 i-c' 7.20 1.221 i

'. ~

7.00' 1.217 i

6.80-1.212-

$1.175

/

6.60 1.204 6.40.

1.196 6.20-1.184 6.00 1.173 r

\\

5.80 1.158

.f

(

5.60 1.141

- t,t50 5.40 1.127

)

5.20.

1.120 or 5.00' 1.119 E

4.80 1.119 o

4,60 1.121

2 4.40-1.120 1.125 4.20 1.118

)

j f

.4.00 1.115 3.80

-1.111 3.60

.1.108

+

3.40 1.106 3.20-1.113.

1.100

-.3.00 1.120 0

1

-2 3

4.

5 6

7 s '.

s to-11-2.80 1.129 a

~

2.60

1.137 Core Height,- feet 2.40-1.144 2.20

.1.150.-

'2.00!

.1.156

'1.80

~ 1.' 161 L c.a......

.__.....,_.._.J.,__,a,

FIGURE 5 - N(2) FUNCTION FOR NIC9 AT 2893 W FROM 7000 TO 9000 MWD /MTV BURNUP TOP AND BOTTOM 15 PERCENT EXCLUDED AS PER TECH SPEC 4.2.2.2.G HEIGHT N(Z)

(FEET) 10.20 1.177 10.00 1.176 1.260 9.80 1.174 9.60 1.176 9.40 1.182 9.20-1.186 9.00 1.188 1.226 8.80 1.192 8.60 1.200

^

0 8.40 1.208 8.20 1.215 i

8,00 1.219 7.80 1.223 3* goo 7.60 1.224 7.40 1.223

.S 7.20 1.221 7.00 1.217 6.80 1.212 5 1.175 6.60 1.204 6.40 1.196 E

6.20 1.184 3

6.00 1.173

'.-j;

\\

5.80 1.158

.150

(

~

5.60 1.141 1

5.40 1.127

'3 5.20 1.120 cr 5.00 1.119 iE 4.80 1.119

'o 4.60 1.121

~Z 4.40 1.120 1.125

~

)

J 4.20 1.118 f

4.00 1.115 i

3.80 1,111 3.60 1.108 I

3.40 1.106 l

1.100 3.20 1.113 3.00 1.120 1

0 1

2 3

4 6

7 8

9 to-11 12 2.80 1.129 2.60-1.137 Core Height, feet 2.40 1.144 2.20 1.150 2.00 1.156 1.80 1.161

i

~

.t FIGlRE 6.- N(Z) FUNCTION FOR N1C9 ATl2893 HW FROM 9000 TO '47000 MWD /MTU BtRNUP t

TOP AM) BOTTOM 15 PERCENT-EXCLUDED 1

AS PER TECH SPEC 4.2.2.2.G i

HEIGHT-N(Z)'

i i

(FEET)

-10.20 1.177

(

1.250 10.00 1.176 9.80 11.174-

.9.60 -

1.176 9.40=

1.182 L

L[\\

9.20-

~1.186

/-

\\

9.00 1;188

(

1*225 N

8.80 l'.192 O

8.60:

1.201;

.i 8.40 1.210 u*

8.20

- l'. 217 =

8.00-1.222s

$ 1.200 7.80 1.225.

7.60 1.227'

~;

7.40-1.230 7.20

-1.232 l

7.00 1.233 i

3 6.80 1.233 lE 1.175

/

6.60 1.230:

+

-6.40 1.227 eo

.- 6.20 '

-1.220' 6.00-1.213-l

_\\

5.80-1.202:

.o

\\

/

5.60 1.191--

1.150

.7 5.40 1.178 m

5.20 1.165 l

5.00 1.157 e

4.80 l'154

-j 4.60-1.151 J

4.40-1.146 1.12$

4.20 1.138

-4.00 L129

.3.80.

1.116

~3.60-1.112.

3,40 1.109-j 1.100-3.20'

'1.117-i 3.00 1.123~

0 1

2 3

4 5

6 8

- e 10 11-12 -

2.80 1.131 i

2.60-1.138 -~

Core He. ht, feet 2.40 1;145 i

ig 2.20 1.151' 2.00-1.156' t

1.80 1.161 I

l' y

v ti

, ~ <

r

,m,....,,,

r-..

v

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

i

-]

4 4

1 FIGURE 7 - N(Z) FUNCTION FOR-NIC9 AT 2893 MW FROM 17000 MWD /MTU BLRNUP 10 EOL TOP AND BOTTOM 15 PERCENT EXCLUDED AS PER TECH SPEC 4.2.2.2.0 HEIGHT

_N(Z)

(FEET) f 10.20 11.151-1.250 10.00 1.146 9.80, 1.140' 9.60 1.139

'9.40 1.147 rg

.9.20

.1.164

/

\\

9.00 1.178 1.225 8.80-1.191' 3

i O

8.60 1.203 8.40 1.211 8.20

'1.218 8.00 1.222-U 1.200 7.80

'1.225 7.60 1.227, 7.40 1.230'

.S 7.20-1.232

-7.00 1.233

~

6.80 1.233 6.60-1.230

, x 1.175 6.40-1 227 g

a 6.20.

-1.220 6.00 1.213

\\

5.80 1.202 i

\\

/

5.60 1.191

-- 1.150

/-

5.40 1.178 a

.5.20' 1.165 l

5.00 1.157 e

4.80 1.154 o

4.60 1.151 1.125 4.40

=1.146 4.20 1.138 4'.00 1.129-3.80 1.118 3.60:

1.112; 3.40

1.109-
1. Ioo -

3.20 1.117>

.i 3.00-1.123-t o

1 2

3 4

5 s.

7 a

s to' it 12 2.80-1.131 2.60-1.138 Core Height, Feet

.2.40 1.145-2.20

= 1.151.

2.00.-

1.156 l'80 1.161 i

.. ~, -

.w.

i

)

t i

i

,t

~

FIGURE 8 - AXIAL FLUX DIFFERENCE LIMITS I

AS A FUNCTION OF RATED THERMAL POWER FROM 0 MWD /MTU BURNUP TO 5000 MWD /MTU FOR NORTH ANNA UNIT 1 CYCLE 9 i

1.20 0:

.l 1.00602

(-12. 100)

-(+3. 100)

/

\\

q E

/

\\

Unacc eptat le

'h

" 8.00101

/

\\

Opera tion f

'W-

/

(.

4 E

- Ac ceptable

\\

y

/

Operati on

.\\

6.00f01

/

\\

o U

l

\\

i E

/

\\

3

("27.50)

(+20,50) t

w 4.00101 5-

-- t u5

=I l"

2.00101 i

}

0.00100 l

-5.00101

-3.00+01-

-1.00+01'

1.00+01-3.00401 5.00t01-I PERCENTFLUXOlFFERENCE(DELTA-l);

~,

I r

i

!a

-f r

i l'

}

i il

d

~

_,. _, ~. _ _.

n FIGURE 9 - AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER-FROM 5000 MWD /MTV BURNUP TO EOL FOR NORTH ANNA UNIT 1 CYCLE 9 1.20402

-1.00402

(-12. 100)

- (46.100 )

/

\\

~

l E

[ 8.00101

[

T Unacc eptab le

\\-

Doeration

/

\\

Acceptable

\\

f

/

Operation

.\\

=

6.00101

/

\\-

o s

/

\\

0 U.5C )

(+20. 50) w 4.00101 5

w" 2.00101 f.00iOO

-5.00401

-3.00+01

-1.00101-1.00101-3.00401

'5.00101-PERCENTFLUXDiffERENCE(DELTA-)

,j b

i l

!

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