ML20085N059
| ML20085N059 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 09/30/1991 |
| From: | GEORGIA POWER CO. |
| To: | |
| Shared Package | |
| ML20085N057 | List: |
| References | |
| NUDOCS 9111140032 | |
| Download: ML20085N059 (12) | |
Text
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O V0GTLE ELECTRIC GENERATING PLANT (VEGP) UNIT 1 CYCLE 4 CORE OPERATING LIMITS REPORT SEPTEMBER 1991 O
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PDR ADOCK 05000424 P
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73 COLR for VEGP UNIT 1 CYCLE 4
]
1.0 CORE OPERATING LIMITS REPORI This Core Operating Limits Report (COLR) for VEGP UNIT 1 CYCLE 4 has been prepared in accordance with the requirements of Technical Specification 6.8.1.6.
The Technical Specifications affected by this report are listed below:
3/4.1.1.1 SHUTDOWN MARGIN - MODES 1 and 2 3/4.1.1.2 SHUTDOWN MARGIN - MODES 3, 4 and 5 3/4.1.1.3 Moderator Temperature Coefficient 3/4.1.3.5 Shutdown Rod Insertion Limit
]
3/4.1.3.6 Control Rod Insertion Limits 3/4.2.1 Axial Flux Difference 3/4.2.2 Heat Flux Hot Channel f actor - F,(Z) 3/4.2.3 Nuclear Enthalpy Rise Hot Channel Factor - Fd I
,3
,Y PAGE 1 of 12
5 COLR for VEGP UNIT 1 CYCLE 4 2.0 OPERATING LIMITS The cycle-specific parameter limits for the specifications listed in section 1.0 are presented in the following subsections.
These limits have been developed-using the NRC-approved methodologies specified in Technical Specification 6.8.1.6 2.1 SHUTDOWN MARGIN - MODES 1 AND 2 (Specification 3/4.1.1.1) 2.1.1 The SHUTDOWN MARGIN shall be greater than or equal to 1.3 percent Ak/k.
2.2
. SHUTDOWN MARGIN - MODES 3. 4 AND 5 (Specification 3/4.1.1.2) 2.2.1 The SHUTDOWN MARGIN shall be greater than or equal to the limits shown in figures 1 and 2.
2.3 Moderator Temoerature Coefficient (Specification 3/4.1.1.3) 2.3.1 The Moderator Temperature Coefficient (MTC) limits are:
The BOL/AR0/HZP - MTC shall be less positive than +0.7 x 10 Ak7k/"F for power levels up to 70 percent RTP with a linear ramo to
{
0 Ak/k/*F at 100 percent RTP.
i The E0L/AR0/RTP-MTC shall be less negative than j
-4.8 x 10 Ak/k/'F.
l 2.3.2 The MTC Surveillance limit is:
i-
-equalto-4.05x10'flTCshouldbelessnegativethanor The 300 ppm /AR0/RTP-F Ak/k/ F.
where:
BOL stands for Beginning of Cycle Life AR0 stands for All Rods Out t
HZP stands for Hot Zero THERMAL POWER l
E0L stands for End of Cycle Life g
RTP stands for RATED THERMAL POWER 2,4 Shutdown Rod Insertion Limit (Specification 3/4.1.3.5) 2.4.1 The shutdown rods shall be withdrawn to a. position greater than or equal to 225 steps.
2.5.
Control Rod Insertion Limjts (Specification 3/4.1.3.6) 2.5.1 The control rod banks shall be limited in physical insertion as-shown in figure 3.
I PAGE 2 of 12 i
l-COLR for VEGP UNIT 1 CYCLE 4 2.6 Axial Flux Difference (Specification 3/4.2.1)
(relaxed axial offset control (RA0C) methodology}
2.6.1 The Axial Flux Difference (AFD) acceptable operation limits are provided in figure 4.
2.7 Heat Flux Hot Channel Factor - F,(Z) (Specification 3/4.2.2)
(F, methodology)
RTP fo 2.7.1 F,(Z) s
- K(Z) for P > 0.5 P
RTP F (Z) s
- K(Z) for P s 0.5 o
0.5 where
P THERMAL POWER
=
RATED THERMAL POWER RTP 2.7.2 F
2.50 o
2.7.3 K(Z) is provided in figure 5.
C RTP 2.7.4 Fo (Z) s Ec
- KfZ) for P > 0.5 P
- W(Z)
C RTP Fo (Z) s Ec
- K(Z1 for P s 0.5 0.5
- W(Z)
O 2.7.5 W(Z) values are provided in figures 6 through 8.
PAGE 3 of 12
~
r COLR for VEGP UNIT 1 CYCLE.4 sO
-2.8 Nuclear Enthalov Rise Hot Channel Factor - Fh (Specification 3/4.2.3)
RTP 2.8.1
. Ff, s F, * (1 + PF, * (1-P))
3 3
where:
P THERMAL POWER RATED-THERMAL POWER RTP-2.8.2a F,
1.57 for LOPAR fuel and 3
RTP-
-2.8.2b F,
1.M for WME 5 fuel
=
3
-2.8.3 PF,
0.3 for LOPAR and VANTAGE 5 fuel
=
3 l
l l
L h
l O i,s,s...o.sco u.ui PAGE 4 of 12 i
=
()
V-5.00 4.00 ACCEPTABLE
^
b OPERATING REGION C
(2500,2.90
- =0 REQUIRED SHUTDOWN h,
MARGIN g
O O _
3 2.00 8
a UNACCEPTABLE I*
OPERATING
~ (1000.1.30)
REGION 1.00 0.00 0
500 1000 1500 2000 2500 zow 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 5 of 12
r-COLR FOR VEGP UNIT 1 CYCLE 4 5.00 (2500,4.80) 4.00 ACCEPTABLE I
OPERATING REQUIRED g
REGION SHUTDOWN k
MARGIN
$ 3.00 g
z
{!
s z
2.00
.r I
UNACCEPTABLE OPERATING REGION
~
(500,1.00) 0.00 0
500
-1000 1500 2000 2500 71/5 I RCS BORON CONCENTRATION (ppm)
FIGURE 2 REQUIRED SHUTDOWN MARGIN FOR MODES 4 AND 5 (MODE 4 WITH NO REACTOR COOLANT PUMPS RUNNING)
OV PAGE 6 of 12
r' COLR FOR VEGP UNIT 1 CYCLE 4 (Fully Withdrawn *)
20 (28.0 %,225)
(78.0%, 225)-
200 BANK B 180 160 I
I (100 %,161) 8 5
'E 140 g
) BANK C 120
[
05'
/
~
O 8
/
s
/
80
]_
[
BANK D 8
/
60 f(0%,46)
'{
20
/
(30.2%,0)[
0 20 40 60 80 100 POWER (percent of 3411 MWt)
- Fully withdrawn shall be the condition where control rods are at a position within the interval 2225 and (231 steps withdrawn.
FIGURE 3 ROD BANK INSERTION LIMITS VERSUS THERMAL POWER PAGE 7 of 12
COLR FOR VEGP UNIT 1 CYCLE 4 O
120 100 UNACCEPTABLE UNACCEPTABLE
=
E8 80 5
h ACCEPTABLE 60 0
!y
(-35, 50)
(+30, 50) o 40 tzC 20 P50
-40
-30
-20
-10 0
10 20 30 40-50 AXIAL FLUX DIFFERENCE (percent Al)
FIGURE 4 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER FOR RAOC PAGE 8 of 12
1 COLR FOR VEGP UNIT 1 CYCLE 4 1.20 1.00 8
b I 0.80 9
52
$ 0.60 0.40 2
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) - NORMAllZED Fo(Z) AS A FUNCTION OF CORE HEIGHT (D
v PAGE 9 of 12
COLR FOR VEGP UNIT 1 CYCLE 4 g3 V
Antal (levaton BOL feet)
W,Zi Point 1
i2 00 i.0o00 1.6 2
11 80 1 0000 3
11 60 1.0000 l-j
- i 4
11 40 1.0000 n
l4 5
11.20 1 0000
!!l l!i, ili ll 1
6 11 00 1 0o00
=
6 1:
!):
Ill; alii lll1 l
i 11 I-7 to 80 1 0000 6
'til lil4 !{l liii i:
l t-
- )
1 1'
i-8 10 60 1 0000 9
10 40 5 0o00 1.5
' i-1 10 10 20 1 0000 i
,i li' z i i=
11 10.00 1 2289 I i-l^
'l 1 4 i-li;
'i lli' j!:
lia; i
j'l
.i
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-1 ;
j j;
, ~j 3 :-
12 9 80 t.2003
= - - -
13 9 60 1 1761 14 9 40 1 1576 1i i;ll
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!!!' Ilte
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.ii 15 9,20 1 1452 11!
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20 8.20 1.1376 IIII
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ll I'll !!II l I ! !_ illl llll Il!
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28 6.60 1.1470
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lll
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ll} lfl! llll llfl Illl !!Il !I!} llll ll _nlffl llll f,,
!!ll lll llI' llll llle llll III!
'lli illi ll, llll llll 32 5.80 1.1292 33 5.60 1.1351 1.2 till l!ll lll' llil !il!"ll'
! Il!i Illl jll lllI llll l-34 5.40 1.1522 35 5.20 1.i726 Iill Illi lll> illl illi
'l I lill 1111 lij il* ~
ll i
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l ll! Il I llA"llll Illl ll 2g lllI II-I i
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l l
lll l
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l 42 3 80 1.3594 illl lil l 'it Il!! li!i i11 li I
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45 3.20 1.3722 46 3.0o 1.3975
- -=;
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47 2.80 1.4293 l I l' lf'.ll ll l
l llll ll l
I l,
!l' llll 48 2.60 1.4s33 Illi liij I!
l ll Illl ill! lil! lil I!ll lIl lill lll 49 2.40 1.4964 0
1 2
3 4
5 6
7 8
9 10 11 12 50 2.20 1.5282 1.0 51 2.00 1.5587 52 1.80 1.0oo0 CORE HEIGHT (feet) 53 1.60 1.000o 54 1.40 1.0oo0 55 1.20 1.oooO FIGURE 6 e
56 1.0o 1.0oo0 a
57 0 80 1.00o0 RAOC W(Z) AT 150 MWD /MTU 58 0.60 t.oooO e
59 0.40 1.0oo0 60 0.20 1.0000 61 0.00 1.0000 A
Top and Bottom 15% Excluded per e
This figure is referred to by Techmcal Specificanons 4 2.2.2d. 83/4 2.2 Tocnnt ca1 Spect f ication 4.2.2.2 PAGE 10 Of 12 21751
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e pJ-COLR FOR VEGP UNIT 1 CYCLE 4 Antal Elevaton MOL Point ifeet)
Wa 2 l 1.5 e
i a no
, oooo l-
-i
'It e
2 11.go 1.0000 l'il I'
l1ll I' l E!!l lI!
'l Ill
'!i llll kiI lii' lil?
- o og 5
11.20 1 00M i llI '}'l illl lii+
11ll I
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1 '8 l l Iill !ili lili 6
11.00 1 0000 I
l l0 I!l ll lIII l:
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'I=
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1o do 1**
iHI N' :lil l!i. Ul! Ui Nli H!I illi ill 1:!i 10 10.20 1.0000
.j,4 l!l!
- l l lll f!l! iill
!l IIlI.' lllt ;;j.
i='+
11 10.00 1 2766 12 9.80 1 2564 i
lIII flll ll!. llll llll lll l l' l' l 'jji ll l l!l' l l l' 13 9.60 1.2326 14 9.40 1 21a0
. lll !l llll l ll' l l l lll lll ll
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ljll j:ll 15 9.20 1.2083 16 9.00 1.2130 llll llll llll lllll;ll l!l 17 8.80 1.2220 llll llll llll l,
l l l' ~
18 8.60-1 2301 illl llll l l' lll ll}
l ll ll llI lll li((
19 8.40 1.2346 lllll 20 8.20 1.2377 1,3 ll lll l
ll ll ll l -ll l
l-l l:lll llll 21 8.00 1.2407 22 7,80 1.2217 l
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23 7.60 1.2413 p
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ll-I l'
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25 7.20
.i 23ai n
24 7.40 1.2401 4
n 3
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26 7.00 1 2204 e
l a1 l
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0l lll 27 6.80 1.2206 l
fi 6
1 l
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I.'k 30 6.20 i.1833 -
1.2 l
l
.'d ll
- ll l.ll l
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31 6.00 1.1667
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I 32 5.80 1.1541 l-i' I
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33 5.60 1.1515 i
34 5.40 1-1598 i l, j
"Ma l
35 5.20 1.1702
'l i
t 36 5.00 1.1786 l l l
l l
- l l
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l 37-4.80 1.1859 38 4.00 1.1922
.li I
- I ll Ij I
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11 l
l
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l l.' I i
l 39 4.40 1.1970 I
40 4.20 1.1997 l1Il l ll1 l
l l
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41 4.00 1.2031 l
c I
1 lI '
ll
- 42 3.80 1-2089 lll
}
l l
l 43 3.60 1.2136 l
11
!!L 44 3.40 1.2166 ll l
l l
l l l!
Ii I
45 3.20 1.2185 46 3.00 1 2214 l ll l -
l 47 2.80 1.2274 48 2,60 1.2371-lk lll l
ll l
l l
lll o
2.40 1;2475 1.0 0 1
2 3
-4 5
6 7
8 9
10 11 12 50 2.20 1,2574 51 2.00 1.2671; 52 1 80 1 0000
. CORE HEIGHT (feet)
=
53 1.60 1.0000
,54 1.40
.1.0000
=
e 50 1.20 1.0000 FIGURE 7 56 1.00 i.0000 e
57 0.80 1.0000 58 o.60 1.0000 RAOC W(Z) AT 7000 MWO/MTU a
59 0.40 1,0000 e
60 0.20 1,0000 61 0.00 1.0000 Top and Bottom 15% Excluded per' This f6gure is referred to by Technical Specifica0ons 4.2.2.2d B3/4.2.2 Tecnn1eal Spec 1 f ieatt on 4.2.2.2 PAGE 11 Of 12 aou
COLR FOR VEGP UNIT 1 CYCLE 4 q
V Autal Elevation EOL 1.$
point
.vesti wi z i 1
12 00 1 0000 2
11.80 1 0000
, i:i -l:I 4,t 3 i,
- i jj ii 3
11.60 1 0000 4
11.40 1.0000
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11.20 1 0000 i
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11.00 1 0000
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=
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7 to go i oooo l
8 10.60 1 0000 I,'
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9 to 40 1 0000 l4 i=!
l' lit
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12 9 80 1 2160 10 10.20 1 0000
- !'l lli!
11 10.00 1 2221 i
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13 9 60 1 2142 t
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I Illi 11 ll 111; ll11 llH i
l:s 32 5.80 1.2188 llll l 'll llll l l
ll l
l lll
--l Il ll!
lll lll 33 5.60 1.2142 l ll l ll ll l
l lll l
- l
- l. ll lll l ll I
i 34 5.40 1.2137 i
35 5.20 1.2185 ll l ll lll l ll ll l ll l ll l
l-ll'
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36 5.00 1.2275 37 4,80 1.2348 ll I
ll ll l
l lll lll lll1 ll lll 38 4.60 1.2394 1.1 39 4.40 1.2422 l lll ll l
ll l-ll l j llll l j'j ll lll-lll llll 40 4.20 1 2429 ll 41 4.00 1 2412 lll! lll lll i ll IIl lll }l l
.! l.
lil?
lll lll 42 3.80 1 2375 43 3.60 1 2316 j'
ll lll l l ll lli lll l
l 44 3,40 1 2239 45 3.20 1,2162 l
l l
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l l
ll ll l
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47 2.80 1.2213 46 3.00 1 2146 1.0 ll!!
ll l
l f
lll lll ll l!ll lll' lll lll 48 2.60 1.2342 49 2.40 1 2467 0
1 2
3 4
5 6
7 8
9 10 11 50 2.20 1.2580 51 2.00 1.2697 CORE HEIGHT (feet) 52 1.80 1 0000 53 1,80 1.0000 54 1.40 1.0000 FIGURE 8 0
};g l$
57 0.80 1.0000
=
$8 0.60 1.oco0 RAOC W(Z) AT 15000 MWD /MTU 59 0.40 1.0000 60 0.20 1.0000 61 0.00 1.0000
(]
This figuru in referred to by Technical Specifications 4 2.2.2d. B3/4 2 2 n
a oct at
. 2 rusi PAGE 12 of 12