ML20044H415
| ML20044H415 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 05/28/1993 |
| From: | DUQUESNE LIGHT CO. |
| To: | |
| Shared Package | |
| ML20044H413 | List: |
| References | |
| NUDOCS 9306080368 | |
| Download: ML20044H415 (6) | |
Text
.
DPR-66 BEAVER VALLEY UNIT 1 CYCLE 10 CORE OPERATING LIMITS REPORT i
This Core Operating Limits Report provides the cycle specific parameter limits developed in accordance with the NRC approved methodologies specified in Technical Specification Administrative Control 6.9.1.14.
Specification 3.1.3.5 Shutdown Rod Insertion Limits The shutdown rods shall be withdrawn to at least 225 steps.
Specification 3.1.3.6 Control Rod Insertion Limits Control Banks A and B shall be withdrawn to at least 225 steps.
Control Banks C and D shall be limited in physical insertion as shown in Figure 1.
Specification 3.2.1 Axial Flux Difference NOTE:
The target band is 7% about the target flux from 0% to 100% RATED THERMAL POWER.
The indicated Axial Flux Difference:
a.
Above 90%
RATED THERMAL POWER shall be maintained within the 17% target band about the target flux difference.
1 b.
Between 50%
and 90%
RATED THERMAL POWER is within the limits shown on Figure 2.
c.
Below 50%
RATED THERMAL POWER may deviate outside the target band.
Specification 3.2.2 Fg(Z) and F Limits xy Fg(Z) $ EfQ
- K(Z) for P > 0.5 P
Fq(Z) S CEQ
- K(Z) for P 5 0.5
0.5 Where
CFQ = 2.4 P=
' THERMAL POWER RATED THERMAL POWER K(Z) = the function obtained from Figure 3.
BEAVER VALLEY - UNIT 1 1 OF 6 COLR 10 l
1 9306000369 930528 l
DPR-66 The F
limits
[F for RATED THERMAL' POWER within specific core pY$nes shall be:y(L)]
x Fxy(RTP)
(1-+ PFXY * (1-P))
Fxy(L)
=
Where:
For all core planes containing D-BANK:
Fxy(RTP) i 1.71 For unrodded core planes:
Fxy(RTP) $ 1.78 from 1.8 ft. elevation to 5.20 ft. elevation Fxy(RTP) 5 1.83 from 5.20 ft. elevation to 6.20 ft. elevation Fxy(RTP) 5 1.89 from 6.20 ft. elevation to 8.20 ft. elevation Fxy(RTP) $ 1.81 from 8.20 ft. elevation to 9.20 ft. elevation Fxy(RTP) i 1.73 from 9.20 ft. elevation to 10.2 ft. elevation PFXY = 0.2 P=
THERMAL POWER RATED THERMAL POWER Figure 4 provides the maximum total peaking factor times relative T
power (Fq,prel) as a function of axial core height _during normal core operation.
Specification 3.2.3 FNDH FNDH $ CFDH *(1 + PFDH *(1-P))
I Where:
CFDH = 1.62 j
PFDH = 0.3 P=
THERMAL POWER RATED THERMAL POWER l
)
l
)
{
.i BEAVER VALLEY - UNIT 1 2 OF 6 COLR 10 l
9 DPR-66 I
\\
no el(54.53, 225) l 200 7
l (100,187)
BANK C p
2 '~
j
/
h140 7
E
/
/
z 120 7 y'"
I (0,114) l BANK D
/
5,
/
y 80 k
/
m 8
/
cc 4o
/
/
/
20 (8,0) l 0
O 10 20 30 40 50 60 70 80 90 100 RELATIVE POWER (Percent)
FIGURE 1 CONTROL ROD INSERTION LIMITS AS A FUNCTION OF POWER LEVEL BEAVER VALLEY - UNIT 1 3 of 6 COLR 10 I
j
V DPR-66 100
-UNACCEPTABLE
(~II' M)
(11' M)
UNACCEPTABLE ~
OPERATION OPERATION g"
/
\\
c 70s.
/
\\
h
[
\\
ACCEPTABLE OPERATION w
u.
(-31, 50)
(31, 50) o 4o
$ 30 5
1 20 10 0
-50
-40
-30
-20
-10 0
10 20 30 40 50 FLUX DIFFERENCE ( AI) %
FIGURE 2 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER BEAVER VALLEY - UNIT 1 4 of 6 COLR 10
DPR-66 i
1.2 (0,1.000)
(6,1.000) 1.0 10.8,.940) 7
\\
.80
\\\\
(12,.647) g.60 g
.40 i
.20 l
0.00 0
2 4
6 8
10 12 CORE HEIGHT (Feet)
FIGURE 3 F[ NORMALIZED OPERATING ENVELOPE, K(Z)
BEAVER VALLEY - UNIT 1 5 of 6 COLR 10 I
~
t DPR-66 I
I I
l
- 0.0, 2.400 8.0, 2.400 2.4 y;44%.
10.8, 2.258 4-sp3gg
'M 2.0 x\\
+
d
\\
E
- \\
\\,
go1.8
{
12.0, 1.553 02 G1.2 i
1 BASIS Fxy 1.78 FROM 1.80 TO 5.20 FEET
>k
,o 1.83 FROM 5.20 TO 8.20 FEET 1.88 FROM 8.20 TO 8.20 FEET 1.81 FROM 8.20 TO 8.20 FEET.
1.73 FROM 8.20 TO 10.2 FEET
'r 40 y
0 2
4 8
8 10 12 CORE HEIGHT (Feet)
FIGURE 4 MAXIMUM (Fh FREL) VS. MAL CORE HEIGHT DURING NORMAL CORE OPERATION BEAVER VALLEY - UNIT 1 6 of 6 COLR 10 l
i C'd s'
'*%r.
_,,#s er f
.Je-A&--
m W -
d'-m"i++tYa a
w Wv-~'
9+**'
- ' * ~ - '
- - ~ ~
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