ML20077E666
| ML20077E666 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 04/30/1991 |
| From: | DUQUESNE LIGHT CO. |
| To: | |
| Shared Package | |
| ML20077E664 | List: |
| References | |
| NUDOCS 9106110152 | |
| Download: ML20077E666 (7) | |
Text
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l Deaver Valley IWor Station, Unit 110, 1 Cycle 9 Corn Operating Ljmitn Itoport - April 1931 l
l l
l l
91oe;. i t o i s: /Imno pga p,gr..c n 0'. 000 3 3 4 P Di<
p
IlFAVER VALLEY Uti1T 1
~
CYCL 1' 9 j
_QORG_OEEIMTIBl_ LI.lil.IS__.HCI'0]LT Thin Core Operating Limito Report providen the cycle specitic parameter limits developed in accordance with the 11RC approved methodologies specified in Technical Specification Administrative Control 6.9.1.14.
Specificittion 3.'
,5
';ntt l9wil_ R9sLilmert191LLimite i
The sh'Itdown ron
.. 1 be withdrawn to at leact 225 steps.
a E119R111Cli.ti.on.111A_Cnntrol RgsLlfmgrtio11_idniin Control Banks A and B chall be withdrawn to at least 225 uteps.
Control Banks C and D shall be limited in physical insertion as shown in Figure 1.
Snecillciition 3.2.1 AKi!) L TInN_J]i Lt3 rnt1Ee 110TE:
The target band is 17% about the target flux from 0% to 100% RATED TilERMAL POWER.
The indicated Axial Flux Difference:
a.
Above 90%
RATED THERMAL POWER shalI be maintained within the 17% target band about the target ilux difforence, b.
Between 50%
and 90%
RATED TilERMAL POb ZR is within the limits shown on Figure 2.
c.
Below 50%
RATED TilERMAL POWER may deviate outside the
~
target band.
Specification 3.2.2 F9(Z) and F Limits xy Fg(Z) $ C.fQ
- K(Z) for P > 0.5 P
Pg(Z) $ CfQ
- K(Z) for P s 0.5
0.5 Where
C FQ== 2. 4 P=
TIJ ERMA L_ eor!ER RATED Ti!ERMAL POWER K(Z) = the function obtained from Figure 3.
BEAVER VALLEY - Uti1T 1 1 OF 6 COLR 9 April 1991 l
1
Thua 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) r Where:
For all core planes containing D-DANK:
Fxy(RTP) $ 1.71 For unrodded core planes:
Fxy(RTP) s 1.73 from 1.8 ft. elevation to 2.50 ft. elevation Fxy(RTP) s 1.79 from 2.50 ft, elovncion to 2.75 ft, elevation Fxy(RTP) 5 1.84 from 2.75 ft. elevation to 4.25 ft, elevation Fxy (RTP) 5 1.81 from 4.25 ft, elevation to 7.25 ft. elevation Fxy(RTP) s 1.79 from 7.25 ft. elevation to 9.75 ft, elevation Fxy(RTP) 5 1.76 from 9.75 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 (Fg,prel) as a function of axial core height during normal core operation.
Specification 3.2.3 FNDH FNDH $ CFDH * (1 + PFDH * (1-P) )
Where:
CFDH = 1.62 PFDH = 0.3 P=
THERMAL POWER RATED THERMAL POWER BEAVER VALLEY - UNIT 1 2 OF 6 COLR 9 April 1991 l
220
! ((54.53, 225)j
^ 200
/
h l
[ff00,187 G 180 BANK C
/
5 160
/
/
/
/
& 140 7
3
/
/
(0,174)j BANK D b 100 O
CL 80 z
<t 60 f
f 40 20 l
ll(8,0)l 0
0 10 20 30 40 50 60 70 80 90 100 RELATI\\/E POWER (Percent) i FIGURE i CONTROL ROD INSERTION LIMITS AS A FUNCTION OF POWER LEVEL 1
l l
BEAVER VALLEY - UNIT i 3 of 6 COLR 9 APRIL 1991 I
m 100 W
II' S0]
II S0]
UNACCEPTABLE _
~ UNACCEPTABLE
- 0 OPERATION OPERA TION 4 80
@ 70
\\
E
\\
60 9W ACCEPTABLE OPERA TION H< 50
'i T
( 31, 50)
(31, 50)
- 0 O
H k 30 o
{ 20 a.
10 0
-50 40 30 20
-10 0
to 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 9 APRIL 1991 l
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1.2 (0, 1.000) l(6,1.00&
(10.8,.940);
1.0
~m
~
_T
.80 q
(12,.647) l q.e0
.40
.20 0.00 0
2 4
6 8
to 12 CORE HEIGHT (Feet)
FIGURE 3 T
F NORMAllZED OPERATING ENVELOPE, K(Z) a BEAVER VALLEY - UNIT 1 5 of 6 COLR 9 APRIL 1991 l
'~~~~
~ ~
' ~~~~
~ _. 1.TZ.T ~~~~
~
~ ~ ~ ~ L..._E. ZE
.l(0,0, 2,400) _..
J(s,0,2,400)l-((10.8, 2.256)}--
2.4
.&{?
N,.
?HW
'{?. !
_ __ s
_.Id
.._; {. _._
2.0 1
m g
c
__q. _
LL9 1.6 kl1h0l 53)h l
v 4._
E
~ _
y p y,g BASIS Fxy 1.73 FROAf 1.80 TO 2.50 FEET 4
~~~
1.79 FROAf 2.50 TO 2.75 FEET
~~~
'~ ~ ~
E 1.84 FRO &f 2.75 TO 4.25 FEET 1.81 FROAf 4.2E TO 7.25 FEET 1.79 FROAf 7.25 TO 9.75 FEET T
80 1.76 FROM 9.75 TO 10.2 FEET t
v
. 40 0
2 4
6 8
10 12 CORE HEIGHT (Feet)
FIGURE 4 MAXIMUM (FJ
- Psa.) VS. AX!AL CORE HEIGHT DURING NORMAL CORE OPERATION BEAVER VALLEY - UNIT 1 6 of 6 COLR 9 APRIL 1991 I
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