ML20064A942
| ML20064A942 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 09/21/1990 |
| From: | Sieber J DUQUESNE LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9010030066 | |
| Download: ML20064A942 (13) | |
Text
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g - aver Valley Power Staton
$hippengport PA 4077<X)04 WQt 393 $h%
Pres Nucsoa* Grcup September-21, 1990 U. S. Nuclear Regulatory Commission Attn:; Document Control Desk j
Washington, DC 20555
'l
Reference:
Beaver Valley Power-Station, Unit No. 1 and No. 2 BV-1. Docket No. 50-334, License No. DPR BV-2 Docket No.,50-412, License No. NPF-73 Core Operating Limits Report Gentlemen:
Attached is a
copy of the revised BV-1 and BV-2 Core' Operating Limits Report (COLR). in accordance with -Technical specification.
6.9.1.14.
These reports are provided to replace the COLR's dated 7
April 26,-1990.
The COLR for each unit has'been revised by replacing-
- i the all rods out position. of 228 steps with 225. steps or more.
Westinghouse performed an analysis in accordance with the methodology-previously-revieted and approved by the NRC in WCAP-9272-P-A1to justify the revised all rods out position.
The BV-1 COLR has also been revised to-correct the Fxyflimits specified on page 2 of 6 to reflect the limits specified on Figure: 4 :
The
.BV COLR includes an additional revision to-incorporate:the.
Fxy limits on page 2 of 6 and Figure 4 in-accordance with the Cycle 3 reload core design.
t These reports have been reviewed by the.OSC and ORC and werc found acceptable.
Sincerely, W!.t, J.
Sieber L
Vice President Nuclear Group cc:
Mr. J.
Beall, Sr. Resident Inspector Mr. T. T. Martin, NRC Region I Administtator Mr. A. W.
DeAgazio, Project Manager Mr. R. Saunders (VEPCO) l
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h BEAVER VALLEY UNIT o L
CYCLE 8 CORE OPERATING LIMITS REPORT This Core Operating Limite 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.
Soecificatio" 1.1.3.5 Shutdown Rod Insertion Limits The P'autdown rods ahall be withdrawn to at least 225 steps.
Soecification 3.1.3.6 Control Rod Insertion Limits control Banks A and B shall be withdrawn to at least 225 steps.
j
- Control Banks C
and D shall be limited in physical insertion as shown in Figure 1.
i EDecification 3.2.1 Axial Flux Difference 140TE:
The target band is 17% about the target flux from 0% to 100% RATED THERMAL POWER.
The indicated Axial Flux Difference:
I a.
Above 90%
RATED THE.lMAL POWER shall be hiaintainod within the t7% target band about the target flux difference, b.
Between 50%
and 90% RATED THER'IAL 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 F (Z) and F Limits 9
xy F (Z) $ SfL*K(Z) for P > 0.5 g
F (Z) s fff
- K(Z) for P s 0.5 g
Where:
CFQ = 2.4 P=
THERMAL POWER RATED THERMAL POWER K(2) = the function obtained from Figure 3.
BEAVER VALLEY - UNIT 1 1 OF 6 COLR 8 8/16/90 i
m
b 4.
a The F
limits (Fxy (L) )
for RATED THERMAL POWER within specific core planes $ hall be:
x Fxy(L) = Fxy(RTP)
(1 + PFXY * (1-P) )
Where For all core planes containing D-BANK:
Fxy(RTP) $ 1.71 For unrodded core planes:
i Fxy(RTP) $ 1.70 from 1.8 ft. elevation to 2.05 ft, elevation I
Fxy(RTP) $ 1.74 from 2.05 f t. elevation to 3.25 ft. elevation i
Fxy(RTP) $ 1.72 from 3.25 ft, elevation to 3.65 ft. elevation l
i Fyy(RTP) 5 1.7135 from 3 65 ft.
elevation to 3.85 ft.
elevation Fxy (RTP) 5 1. 71 f rom 3. 85 f t.
levation to 5.85 ft. elevation Fxy (RTP) $ 1. 77 f rom 5. 85 f t. elevation to 9.65 ft. elevati.n Fxy(RTP) 5 1.71 from 9. 65 f t.
elevat)On 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) es a function of axial core height during normal core operation.
SDecification 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 8 8/16/90
l 220
/
(54.53, 225)I g
200 g
'(10v, 187)
SANK C
.c: 160 p
f f
/
f,/
/
l (0, 114)l c
BANK D
100 j
3 80 E
/
60 s
/
40
/
/
20 8, 0) 1 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 LEVER VALLEY - UNIT 1 3 of 6 COLR 8 8/16/90
~
e M10 Unacceptable (-11,00)
(11,90)
Unacceptable E
Operation Operation
~
N
/
\\
v
/ A..ept.,1. ep.r.ti.n \\
l,
/
\\
( ~ 31, 50)
( 31,50) 3 E
N b
y 20
(
10 0
-5
-3
-20
-10 0
10 3
30 M
FLUX DIFFERENCE ( A I) %
FIGURE 2 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER BEAVER VALLEY - UNIT 1 4 of 6 COLR 8 8/16/90
]
l 1.2 l
l i
j I(0, 1.00)l I (6, 1.00)l 1.0 I(10.8,.94) l i
i l
-l
.80
+
r l
?
4
(
l Q
I l(12,.64T)'g l'
l v.60 i
l I
4 l
l l
.40 i
I
.20 4
I i
0,00 O
2 4
6 8
10 12 CORE HEIGHT (feet)
FIGURE 3 FoT NOPM LUZED OPERATING ENVELOPE, K(Z)
BEAVER VALLEY - UNIT 1 5 of 6 COLR 8 8/16/90
l e
i i
l l
l0.0, 2.40 l6.0, 2.401
{
j
'2.4 I10.8, 2.256 i
..,..... +
)
l 2.0 I
^
I a.
i t
1.6 t
)
j f
1 i.
l 1 12.0. 1.536 l
l BASIS FXY l
Q 1. 2 FROW 1.8 FT. TO 2.05 FT.'
1.700 ABOVE 2.05 FT. TO 3,25 FT.
1.740 AB0VE 3.25 FT. TO 3.65 FT.
1.720 t
ABOVE 3.65 FT. TO 3.85 FT.
1.7135 ABOVE 3.85 FT. TO 5.85 FT.
1.710 ABOVE 5.85 FT. TO 9.65 FT.
1.770
+
.80 AB0VE 9.65 FT TO 10.2 FT.
1.710 i
+
O 2
4 6
8 to 1;
CORE HEIGHT (feet)
FIGURE 4 T
MAXIMUM (Fo. pAEL) VS. AXtAL CORE HEIGHT Di) RING NORMAL CORE OPERATION
. BEAVER VALLEY - UNIT 1 6 of 6 COLR 8 8/16/90 9
. ~,
l o
BEAVER VALLEY UNIT 2 CYCLE 3 CORE OPERATING LIMITS REPORT 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.
SDecification 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 17% 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, 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 F (Z) and F Limits g
xy F (Z) $ EfS*K(Z) for P > 0.5 g
l F(Z)$fff*K(Z) for P 5 0.5 q
l Wheret CFQ = 2.32 P=
THERMAL POWER RATED THERMAL POWER K(Z) = the function obtained from Figure 3.
BEAVER VALLEY - UNIT 2 1 OF 6 COLR 3 8/20/90
n l
9 0
The limits (Fxy (L) )
for RATED THERMAL POWER within specific core planes 6 hall bei Fxy (L) = Fxy(RTP)
(1 + PFXY * (1-P))
Where:
For all core planes containing D-BANK Fxy(RTP) s 1.71 For unrodded core planes Fxy(RTP) s 1.67 from 1.8 ft, elevation to 2.5 ft. elevation Fxy (RTP) s 1. 69 from 2. 5 f t. elevation to 6.0 ft. elevation Fxy (RTP) s 1. 70 f rom 6. 0 f t.
elevation to 8.75 ft. elevation Fxy(RTP) s 1.72 from 8.75 ft elevation to 9.75 f t. elevation Fxy (RTP) s 1. 69 f rom 9. 75 f t.
elevation to 10.2 ft, elevation PFXY = C.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.
Soecification 3.2.3 FNDH FNDH $ CFDH * (1 + PFDH * (1-P))
Where:
CFDH = 1.55 PFDH = 0.3 P=
THERMAL POWER RATED THERMAL POWER 1
l l
1 BEAVER VALLEY - UNIT 2 2 OF 6 COLR 3 8/20/90
)
i i
i 220 i ts4.ss, 2254 j
g 200 g
i(100.187)j SANK C a,-
j 5
/
/
G*2
[
1(0, 114)I E
BANK 0
- 100 i.,
1
- 60 E
/
40 to s
g 0
to 20 m
40 50 60 70 so 90 100 Rl!LATIVE POWER (percent)
FIGURE 1 CONTROL RCD INSERTION LIMITS AS A FUNCTION OF POWER LEVEL BEAVER VALLEY - UNIT 2 3 of 6 COLR 3 8/20/90
==yw is.*e<at--!"
V6e+---w-w,m-+y
--w*w v w eev' q
y,
,g-wmNw'-d---w-w'M+'i-g-ae-,
=r e m N-^w-we,-vem**-hWP-a=ew-*-
'wm
1%
Unacceptable (-11,90)
(11,90)
Unacceptable 90 Operation Operation E
80
\\
l'
/
\\
k Acceptable Operation I,
/
\\
(-31,50)
( 31,50)
(
E 3D b-a 10 0
-5
-4
-2
-2
-10 0
10 3-M 50 FiUX DIFFERENCE ( A I) %
FIGURE 2 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL PotiER BEAVER VALLEY - UNIT 2 4 of 6 COLR 3 8/20/90
\\.
1.2 i
I I
I
\\;
I i
i I(O. 1.00)l ll(6.1.00)l
!(10.8.
34) 3
.80 I(12.
647) b I
b.60 i
I
.40
.20 0.00 CORE HEIGHT (feetp 1
12 FIGURE 3 E T NZED OPERATING ENVELOPE. x(r)
C I
BEAVER VALLEY - UNIT 2 5 of 6 COLR 3 8/20/90
7_,
i 1
j i
2.4 i 6.0. 2.32 i
)
y i
i 10.1C 2.18 t-
-...,***+
)
(
q....
g.
I 2.0
\\
I l\\
I
!\\
\\
1.6 i 12.0. 1.50 a
W l
n.
l l
1 l
l l
1 81.2 l
l-I I
i x
I E
i
.60 BASIS Fay l
1.67 UP TO 2.50 FEET 1,69 FROW 2.50 TO 6.00 FEET l
l 1.70 FROM 6.00 TO 8.75 FEET
,40 1.72 FROW 8.75 TO 9.75 FEET j
1.69 ABOVE 0.75 FEET
.i I
0 2
4 6
to 12 l
CORE HEIGHT (Feet) 8 L
L j.
i l.
FIGURE 4 T
MAxlMUM (Fo
- pngg) vs. axial cong MaioHT DURING NORMAL OPERATION BEAVER VALLEY - UNIT 2 6 of 6 COLR 3 8/20/90
.-