ML20064A873

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Cycle 8 Core Surveillance Rept
ML20064A873
Person / Time
Site: North Anna Dominion icon.png
Issue date: 09/11/1990
From:
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML20064A872 List:
References
NUDOCS 9010010112
Download: ML20064A873 (11)
v • d • e


Text

N y c,  ;

i NORTH' ANNA UNIT 2 CYCLE 8 CORE SURVEILLANCE REPORT ,

i This Core Surveillance Report is provided in accordance with Section '

6.9.1.7 of the North Anna Unit 2 Technical Specifications. l The burnup-dependent Cycle 8' N(z) function for Technical Specification i 4.2.2.2.C is shown in Figures 1-8. 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 ,

2.19 K(z) .

.FQ(z) 5 ---------- , P > 0.5 and '

P FQ(z) s 4.38 K(Z), P s 0.5.

The Cycle 8 Axial Flux Difference (AFD) limits for Technical Specification  ;

3.2.1 are shown in Figures 9 and 10. These limits were calculated ac-cording to the. methods of VEP-NE-1-A and are comparable to the previous

  • Cycle 8 1.imits.

l The limits on Axial Flux Difference assure that the FQ(z) upper bound >

envelope is not' exceeded during either normal operation or in the event i of xenon redistribution following power changes.

"The N(z) function, when applied to a power distribution measured under equilibrium conditions, demonstrates that the initial conditions assumed in the LOCA analysis are met, along with the ECCS acceptance criteria of 10CFR50.46. ,

9010010112 900911 PDR ADOCK 05000339 P PDC

j l

1 FIGURE 1 - N(Z) FUNCTION FOR N2C8 AT 2893 MW FROM 0 to 1000 MWD /MTU BLRNUP ,

TOP A W BOTTOM 15 PERCENT EXCLUDED  !

'AS PER TECH SPEC 4.2.2.2.G l

HEIGHT N(Z) [

(FEET)  !

i 10.20 1.224.  !

10.00 1.217 9.80- 1.209  :

9.60 ,1.201 9.40 1.101 9.20 1.183 -

9.00 2.183 8.80 1.188

-1.22400 s / 8.60 1.192 8.40 1.195 .;

8.20 1.196-8.00 1.195 5 7.80 1.193 3 7.60 1.189 .

5: 7.40 1.183 ,

O 7.20 1.176 i

= 1.18+00 , f 7.00 1.168 E / 6.80 6.60 1.159 1.148 r 3 I 6.40 1.137

-.; 6.20 1.128 ,

6.00 1.116
3 1*1400 5.80 1.108  !

g 5.60 -1.105

==

5.40 1.103 5.20 1.101  ;

5.00 1.103 *

4.80 1.106-l 4.60 1.113 4.40 1.123' 1.10f00 4.20 1.132

'0.00+00 2.00100 4.00+00 6.00+00 4*

l 1.00+00 1.00101 3, f'

! COREHEIGHT(FEET) 3.60 1.156 3.40 1.163 3.20 1.170 '

3.00 1.178 L;-. ,

2.80 1.186 .

2.60 1.195 2,40 1.202 a u 2.20 1.210 2.00 1.217 1.80 1.223 l

l L-

,, -c r

L .

. FIP'.c 2 - N(Z) FUNCTION FOR N2C8 AT 2893 MW ,

FROM 1000 to 3000 MWD /MTU BURNUP i F

TOP A W BOTTOM 15 PERCENT EXCLUDED  !

AS PER TECH SPEC 4.2.2.2.G HEIGHT- N(Z).

(FEET)  ;

10.20 1.224 10.00 1.217 9.80 1.209 9.60 1.201 l

  • 9.40 1.189  ;

9.20. 1,183 i 9.00 1.183' -

8.80 1.188  :

i.22400 s

/

8.60 1.192 8.40 1.195 t 8.20 1.197  !

8.00 1.199 d 5

7.80 1.199 7.60 1.198

= 7.40 l'.195 3'1.11+00 / 7.20 l'.192

  • g 7.00 4.10?

6.80 1,183 l

!' E '6.60 1.17/

E 6.40 1.168 S

d / 6.20 1.158 '

( 6.00 1.146 E j 5.80 1.137 g 1.14+00 5.60 1.131-  :

E 5.40 1.126 5.20 '1.114 5.00 1.107 ,

4.80- 1.106

' / 4.60 4.40-1.112 1.122 s 1.10600 4.20 1.132 0.00+00 2.00+00 4.00600 6.00100 8.00600 1.00+01 j-COREHEIGHT.(FEET) 3.60 1.156

. 3.40 1.163 1 3.20 1.170 3.00 1.178 ,

2.80 1.186 '.

2.60 1.195 2.40 1.202 2 2.20 1.210 2.00 1.217 1.80 1.223 t

i

^*

FIGLRE 3 - N(Z) FUNCTION FOR N2C8 AT 2893 MW  !

FROM 3000 to 5000 MWD /NTU BURNUP TOP A W BOTTOM 15 PERCENT EXCLLDED j AS PER TECH SPEC 4.2.2.2.G i HEIGHT N(Z) ,

(FEET) s 10.20 1.224 t 10.00 1.217 9.80 1.209  !

9.60 1.201- ,

1.2000 9.40 1.189 j 9.20 1.183 E i l 9.00 1.183 m

] .

, 8.80 8.60 1.188 1.192  :

l 8.40 1.195 .i

1. 2 H 00 8.20 1.197 '

5 8.00 1.199 r 3

S.

l

/

[\ %f[ 7.80 7.60 1.199 1.198 7

~

O 7.40 1.195  !

\. 7.20 1.192 I E \ 7.00 1;187'

= 1.16f00 \

E 6.80 1.183 6.60 E [ 6.40 1.177-1.168 3 /

)

6.20 1.1U +

6.00 1.147 S ( 5.80 1.137

  • 51.12f 00 \ 5.60 1.132'  ;

\ / 5.40 1.126 .

( xj / 5.20 5.00 1.117 1.106 <

v 4.80, 1.097 l- 4.60- 1.098

[ 1.0l+00 4.40 1.101 L 4.20 1.103 0.00100 4,00100 '

2.00+00 6.00100 8.00+00 1.00+01 4.00 1.105 COREHEIGHT(FEET) 3.80 1.107 -

3.601 1.110 3.40 1.116 E 3.20 1.125 3.00 1.134 2.80 1.143-2.60 1.151 2.40 1.158 2.20 1.165 2.00 1.172 1.80 1.178-

4

.q o '

+ j 1

FIGlRE 4 - N(2) FUNCTION FOR N2C8 AT 2893 MW - 1 FROM 5000 to 7000 MWD /MTU BLRNUP J TOP AW BOTTOM 15 PERCENT EXCLLDED ,

AS PER TECH SPEC 4.2.2.2.G ,

. HEIGHT

-)

N(Z) '

- (FEET) i 10.20 1.224 10.00 1.217- '

l 9.80 1.208 9.60 1.201.  !

9.40 1.24600 1.189 9.20 1.183  !

9.00 1.182-8.80 ' 1.188

/ _8.60. 1.193  ;

8.40 1.198 5

1.20400

/\ / 8.20 8.00 7.80

- 1.202 1.205 1.205 '

7.60 1.203  ?

a-7.40- 1.201 3

==

g 7.20' 1.200  ;

[ 7.00 - 1;198 ,

=

1.11400-- k 6.80 1.195 l 6.60 1.188

~ t .

6.40 1.179  :

I I

d f 6.20 6.00 1.167 1.153 i

5 5.80 1.142 E

L l;' g 1.12100 \ 5.60

. 5.40-

- 1.137 1.132

\ / 5.20 1.121 L

' \

\

j 5.00 1.110' v' 4.80 4.60 1.100 1.096' t

4.40- 1.100 l 1.08600 4.20 1.103 4.00 1.105 0.00+00 2.00+00 4.00+00 6.00+00 8.00100 t.00101

. 3.80 1.106 -

COREHEIGHT(FEET) 3.60 1.110 3.40 - 1.116 3.20 ' 1,125 l 3.00 1.134 .

2,80: 1.143 2.60 1.151 2.40 1.158 2.20 1.165-2.00 1.172 1.80 1.178 ,

I r

-_.----_--.--_-_____----------__--_._--x- . - . - -- --- - - -.,w.- v - - e -~.- ,

c. .- ,

i f

..: j FIG W E 5 - N(Z) FUNCTION FOR N2C8 AT 2893 MW  !

FROM 7000 to 9000 MWD /MTV BLRNUP  !

TOP AW BOTTOM 15 PEHCENT EXCLLDED i AS PER TECH SPEC 4.2.2.2.G-  !

i HEIGHT N(Z) i (FEET) j r

10.20 1.167 ~!

10.00 1.160  !

9.80- 1.152 5 9.60 1.150 i

  • 1*2000 9.40' 1.155.  !

9.20 1.166  :

s fg 9.00 1.176 .?

- 8.80 1.186

1. H + 0 0 / \ 8.60 8.40 1.194 1.199 'i

/ \ 8.20 8.00 1.203 1.205 i

t 5- I 7.80 1.205 3 1. t H 00 [ \ 7.60- 1.204-

  • , \ 7.40 1.201

.O f \  ! 7.20

~

'1.200 i E  !

\/ 7.00 1.198 ,

1.15400  ; \1 6.80 1.195 l 2 N / 6.60' 1.188 i E \ / 6.40 1.179 i

\ / 6.20 1.167  ;
' t,tpop \ / 6.00 .1.154 0, s / 5.80' 1.142 L

=

= \ / 5.60 1.137 x f 5.40 1.132 .

'I'1H00 \ / 5.20 1.121~  !

5.00 1.110  :

4.80 1.099 L

" \ f 4.60 1.093

1. 0l + 0 9.

V 4.40.

4.20 1.094 1.096 L 0.00400- 2.00+00 4.00+00- 6.00+00 8.00+00 10+01 j' 9

l. COREHEIGHT(FEET) 3l60 1.108 L- 3.40 ~1.113 3.20 1.118 l

3.00 1.123 ,

2.80 1.128.  !

2.60 1.133

c. 2.40 1.137 p 2.20 1.142 1

2.00 l'.146 .;

1.80 1.149 i

+

4 7

". s .,

E

[

I FIGLRE 6 - N(Z) FUNCTION FOR N2C8 AT 2893 MW  !

FROM 9000 to 11000 MWD /MTU BLRNUP .

~ TOP AND BOTTOM 15 PERCENT EXCLUDED l AS PER TECH SPEC 4.2.2.2.G j HEIGHT N(Z) -!

(FEET) j 10.20 1.167  !

10.00 '1.160 9.80 1.152  !

9.60 1.150 -[

' 9.40- 1.155' '

1.21+00 9.20 1.166 9.00 1.176 'i

[\ 8.80 1.186 f

? j \ 8.60 1.194  !

1.19400 / \ 8.40 1.199- t

-\ 8.20 1.203 ae /

/ \

i 8.00 7.80 1.205 1.205 O

1. 0 400 / ( 7.60 1.204L  :

K' f i 7.40 1.201- t W'

/ \ / 7.20' 1.200  !

r 7.00 1.198 ,

=

i.il.,,

y V 6.80 6.60 1.195 1.188

6.40- 1;179 g ) 6.20 1.167 -
f 6.00 1.154 g 1.13+00 \ [ 5.80 1.142 W T 5.60 1.137-E ' [ 5.40 1.132 ,

5.20 1.121' 1.11+00 [ 5.00 1.110 i

) 4.80 1.099 i

\ / 4.60 l'.093 l 1.00+00 G 4.40 4.20 1.094

.1.096 3 ~

4.00 1.099 i 0.00+00 2.00600 ,4.00f00 4.00+00 8.00+00 1.00+01 3.80 1.103 COREHEICHT(FEET)- 3.60- 1.108-  ;

3.40 1~.113 3.20 1.118 ,

3.00 1.123 1 2.80 1.128 2.60 1.133 4 2.40 1.137  ;

2.20 1.142 i

2.00 1.146 1.80 1.149 ,

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

FIGlRE 7 - N(Z) FUNCTION FOR N2C8 AT 2893 MW FROM 11000 to 17000 MWD /MTU BLRNUP TOP AND BOTTOM 15 PERCENT EXCLt0ED AS PER TECH SPEC 4.2.2.2.G HEIGHT N(Z)

(FEET) 10.20 1.167 10.00 1.160 9.80 1.151 9.60 1.150 9.40 1.155 9.20 1.166 9.00 1.176 8.80 1.190 1.22400 /e\ 8.60 8.40 1.200 1.209 8.20 1.215 8.00 1.220 a:  ; 7.80 1.224

% 7.60 1.228

% 7.40 1.231 0 3 7.20 1.232 g 1.H+00 \ 7.00 1.229

\ '

6.80 1.225 E \ \ 6.60 1.220 E \ \ / 6.40 1.217 5 6.20 1.210 t

5 h 6.00 5.80 1.204 1.193 W 1.14+00 5.60 1.184 E 1 5.40 1.169

(

\# [ 5.20 5.00 4.80 1.150 1.136 1.133 U 4.60 1.133 4.40 1.131 1.10+00 4.20 1.129 4.00 1.124 0.00+00 2.00+00 4.00+00 6.00+00 8.00+00 1.00+01 3.80 1.119 COREHEIGHT(FEET) 3.60 1.114 3.40 1.114 3.20 1.125 3.00 1.135 2.80 1.148 2.60 1.158 2.40 1.168 2.20 1.178 2.00 1.186 1.80 1.193

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

r; . p.

. s ;. ,

l l

l; FIGLRE 8 - N(Z) FUNCTION FOR N2C8 AT 2893 MW

FROM 17000 MWO/MTU BLRNUP TO EOL - l TOP AIO BOTTOM 15 PERCENT EXCLLDED I AS PER TECH SPEC 4.2.2.2 G l

i HEIGHT N(Z) i (FEET) ,

i 10.20 1.146  !

10.00 1.144  !

9.80 1.139 ,

9.60 1.139 i 9.40 1.147  :

9.20 1.163  !

9.00- 1.177  !

1.22400 /

%\ 8.80 8.60 1.190-1.201' i

8.40 1.209  ;

8.20 .1,216 i 8.00 1.220 me b,

J 7.80 1.224. 1 7.60i 1.228  !

I

. j 7.40 1.231  !

g 1.t'I400 \- 7.20 1.232 s

" 7.00 1.229' i 6.80 1.225 E 6.60 1.220 6.40 1.217' j) 6.20 1.210 '

d 6.00 1.204  :

-E-

, 5.80 1.193 -

W 1.14+00 _/ 5.60 1,184  !

E I 5.40 1.169

\j[ '5.20 5.00 1.150 1.136 i

, y 4.80 1.133  ;

l 4.60- 1.133-

  • 4.40 1.131 4

L 1.10100 4.20 1.129 1 l

' 4.00 1.124 -!

l O 00+00 2.00+00 4.00400 '.00100 8.00100 1.00+01 3.80 1.119 COREHE5->ni(FEET) 3.60 1.114 3,40 1.114 4 l 3.20 1~125 i

3.00 1.135 2.80 1.148 2.60 1.158  ;

2.40 1.168 >

2.20 1.178 2.00 1.186 i 1.80 1.193 l~

i

_ _ _ _ . __ __ ___ _ _ . - _ . . . _ __. . - ~ . _ _ . . _ .

\

FIGURE 9 - AXIAL FLUX DIFFERENCE LIMITS

, AS A FUNCTION OF RATED THERMAL POWER  ;

FROM 150 to 9000 MWD /MTU BURNUP ,

=!

i t

1.20+02 j ,

1.00402 (-12 .100) (+4 100)

= / \  :

8.00401 /

/ \ 'Unacdeptat'le Oneration E , l Ac' :epta ble-\

E / Op tration \

6.00+01 / \

/

(-27,50)

\

,50)

  • 4.00+01 l(+20 E

u .

O  ;

  • 2.00+01 O.00+00

-5.00+01 -3.00+01 -1.00+01 1.00401 3.00+01 5.00+01 PERCElli FLUX OlFFERENCE (DEliA-1)

L v  :

l.

I

h:' .

u i; t

c, .

L FIGURE 10- AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWA FROM 9000 MWO/MTU BURNUP TO EOL

' 2J+02 l

l '

l 1.00602 (-12 .100)I l N6.1007

-  ! l  !/ \ l I E

'~~

1. 0 0 +011

! i I /

/ 'l li j i i UnacceDrable

' on.ekvi nn,

! Ac:eotable

~ l / Op trat1lm

, 4.00+011 I / I (\ _ ,

5

/

(-27,50)

\ l

  • 4,006s1 l (+2) 50)

E a

"i

" 2.00601 0.00+00 l

-5.88+et -1.00+s1 -1.00601 1.so+et 3.sg+st 5.co+st PERCENTFLUXDiffERENCE(DELTA-1)

_

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