ML20247A710
| ML20247A710 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 04/30/1998 |
| From: | ENTERGY OPERATIONS, INC. |
| To: | |
| Shared Package | |
| ML20247A705 | List: |
| References | |
| 97-R-1012-03, 97-R-1012-03-R00, 97-R-1012-3, 97-R-1012-3-R, NUDOCS 9805060213 | |
| Download: ML20247A710 (22) | |
Text
.
I ENTERGY OPERATIONS ARKANSAS NUCLEAR ONE - UN1T ONE CYCLE 15 CORE OPERATfNG LIMITS REPORT 1.0 CORE OPERATING LIMITS
, This Core Operating Limits Report for ANO-1 Cycle 15 has been prepared in accordance with the requirements of Technical Specification 6.12.3. The core operating limits have been developed using the methodology provided in the references.
The following cycle - specific core operating limits are included in this report:
J 1)
Regulating control rod position setpoints, 2)
Reactor power imbalance setpoints, 3)
LOCA limited maximum allowaole linear heat rate limits, 4)
Axial power imbalance protective limits, 5)
Protection system maximum allowable setpoints for axial power imbalance, 6)
Variable Low ACS Pressure-Temperature (P-T) Protective Limits, 7)
RCS Pressure-Temperature (P-T) Protective Maxunum Allowable Setpoints, 8)
KW/ft limit for axial power imbalance protective limits, 9)
Minimum shutdown margin, 10)
Axial p~ower shaping rod insertion limits and setpoints, 11)
Quadrant power tilt limits, 12)
Design Nuclear Power Peaking Factors.
97-R-1012-03 9805060213 900430 page 1 of 22
2.0 REFERENCES
- 1. " Safety Criteria and Methodology for Acceptable Cycle Reload Analysis,"
BAW-10179P-A, Rev.2, Framatome Cogema Fuels, Lynchburg, Virginia, October 1997.
4 97 R 1012-03 Resision 0 COLR page 2 of 22
Table Of Contents Page Fig.1-A Rod Position Setpoints for Four-Pump Operation From 0 to 300 i 10 EFPD
- ANO-1 Cycle 15...
.4 Fig.1-B Rod Position Setpoints for Four-Pump Operation From 300 i 10 EFPD to EOC
- ANO-1 Cycle 15..
.5 Fig. 2-A Rod Position Setpoints for Three-Pump Operation From 0 to 300 i 10 EFPD
- ANO-1 Cycle 15...
.6 Fig. 2-B Rod Position Setpoints for Three-Pump Operation From 300 i 10 EFPD to EOC
- ANO-1 Cycle 15...
.7 Fig. 3-A Rod Position Setpoints for Two-Pump Operation From 0 to 300 i 10 EFPD
- ANO-1 Cycle 15..
.8 Fig. 3-B Rod Position Setpoints for Two-Pump Operatio1 From 300 i 10 EFPD to EOC
- ANO-1 Cycle 15..
.9 Fig. 4 Operational Power Imbalance Setpoints for Four-Pump Operation From 0 EFPD to EOC - ANO-1 Cycle 15..
.10 Fig. 5 Operational Power Imbalance Setpointt for Three-Pump Operation From 0 EFPD to EOC - ANO-1 Cycle 15.
.I1 Fig. 6 Operational Power Imbalance Setpoints for Two-Pump Operation From 0 EFPD to EOC - ANO-1 Cycle 15.
.12 Fig. 7 Mk-B8ZL and Mk-B9ZL LOCA Linear Heat Rate Limits..
.13 Fig. 8 Axial Power Imbalance Protective Limits....
. 14
' Fig. 9 Protection System Maximum Allowable Setpoints for Axial Power Imbalance.
.15 Fig.10 Variable Low RCS Pressure-Temperature (P-T) Protective Limits....
.16 Fig.I1 RCS Pressure-Temperature (P-T) Protective Maximum Allowable Serpoints...
.17 KW/FT Limit for Axial Power Imbalance Protective Limits....
.18
- Minimum Shutdown Margin..
.19 Axial Power Shaping Rod Insertion Limits and Setpoints..
.20 i
ANO-1 Cycle 15 Tilt Limits and Setpoints (Quadrant Power Tilt Limits)..
.21 Design Nuclear Power Peaking Factors...
.22 97-R-1012-03 Revision 0 COLR page 3 of 22
Figure is referred to by Technical Specification 3.5.2.5 Figure 1-A Rod Position Setpoints for Four-Pump Operation From 0 to 300 i 10 EFPD - ANO-1 Cycle 15 110 (264.1,10,2)
OPERATION IN THIS (300,102) 90 -
(248.5,90)4 ALLOWED (248.5,78 h
70 '
2 SHUTDOWN OPERATION MARGIN RESTRICTED 60 -
y LIMIT (88.5,58)
(206.5, 58) og 50 -
I l
15 40 -
S PERMISSIBLE I
OPERATING 3,,
REGION 20 -
(49.5,18)
LO -
(0, 3.2) g 0
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Rod Index, % withdrawn I
0 20 40 60 80 100 l
l l
l l
l GROUP 7
]
0 20 40 60 80 100 l
l I
I I
I GROUP 6 0
20 40 60 80 100 1
I I
I I
I
)
GROUP 5
)
l 1
l 97 R-1012-03 Resision 0 COLR j
page 4 of 22 l
Y t
Figure is referred to by Technical Specification 3.5.2.5 Figure 1-B Rod Position Setpoints for Four-Pump Operation From 300 i 10 EFPD to EOC - ANO-1 Cycle 15 110 (197.5,102 (264.1,102)
' ~
OPERATION IN THIS (300,102)
REGION IS NOT 90 "
ALLOWED (248.5, 90)4 80 '
(248.5, 78) g
,g,
OPERATION 7
RESTRICTED ee$
60 SHUTDOWN (152.5,58)
C MARGIN (206.5,58)
LIMIT 3,,
$0 40 -
c-PERMISSIBLE OPERATING 3U ~
REGION (93.5,18) 9, 10 " (0, 0.2)
Of 0
20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Rod Index, % withdrawn
)
l 0
20 40 60 80 100 l
l 1
1 I
I I
l GROUP 7 l
0 20 40 60 80 100 I
I I
I I
I I
l GROUP 6 0
20 40 60 80 100 l
l I
I I
I I
GROUP 5 97-R 1012-03 Revision 0 COLR l
page 5 of 22
l' l
Figure is referred to by l
echnical Specification 3.5.2.5 l
Figure 2-A Rod Position Setpoints for Three-Pump Operation
]
From 0 to 300 10 EFPD - ANO-1 Cycle 15 4
l 110 l
i l
l 100-l 90 <
l
' OPERATION IN THIS
)
REGION IS NOT ALLOWED (115.1,77)
(264.8,77) -
(300, 77)
I h
7o.
I I'
SHUTDOWN 60 MARGIN l
C LIMIT
'(248.5, 58)
O OPERATION a'
RESTRICTED g' 40 -
(88.5,43.53 (206.5, 43) o C
30 <
j i
PERMISSIBLE OPERATING 20 REGION (49.5,13.5)
(0, 2.4)
I O
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Rod Index, % withdrawn 0
20 40 60 80 100 l
I I
I I
I GROUP 7 0
20 40 60 80 100 l
I l
I l
l GROUP 6 0
20 40 60 80 100 l
i 1
I I
I GROUP 5 97-R-1012 03 Revision 0 COLR page 6 of 22
- Figure is referred to by Technical Specification 3.5.2.5 Figure 2-B Rod Position Setpoints for Three-Pump Operation From 300 10 EFPD to EOC - ANO-1 Cycle 15 110 l00 -
90 80 -
OPERATION IN THIS (264.8,77,)
(198.2,77)
REGION IS NOT 33l:
70 ALLOWED (300,77) 2 (248.5, 67) <
OPERATL $5
>(248.5,58)
Y SHUTDOWN RESTRICTED 5 ~
MARGIN (152.5,43.5)
LIMIT (206.5,43) h 40 -
c.
30 -
PERMISSIBLE j
20 OPERATING l
(93.5,13.5)
(0, 0.2) l
)
01
)
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Rod Index, % withdrawn 0
20 40 60 80 100 I
I I
I I
I i
GROUP 7 l
0 20 40 60 80 100
)
l I
I I
I I
l GROUP 6 0
20 40 60 80 100 l
l I
I I
I GROUP 5 97-R 1012-03 Resision 0 COLR page 7 of 22
Figure is referred to by Technical Specification 3.5.2.5 Figure 3-A Rod Position Setpoints for Two-Pump Operation From 0 to 300 10 EFPD - ANO-1 Cycle 15 110 100 -
90 -
80 -
70 -
4 SHUTDOWN 6 '
MARGIN N
(115.9, 52)
(265.8,52) o LIMIT s
[ (300,52) p OPERATION IN THIS OPERATION
[4 -
REGION
, O ED 30 -
(88.5,29)
(206.5, 28) 20 -
PERMISSIBLE (49.5, 9)
OPERATING i0 REGION
,1.6) 0 0
20 40 60 30 100 120 140 160 180 200 220 240 260 280 300 Rod Index, % withdrawn 0
20 40 60 80 100 l
l l
l l
l GROUP 7 0
20 40 60 80 100 l
l I
I I
I GROUP 6 0
20 40 60 80 100 l
l-1 I
I I
GROUP 5 97 R-1012-03 Resision 0 COLR page 8 of 22
Figure is referred to by Technical Specification 3.5.2.5 Figure 3-B Rod Position Setpoints for Two-Pump Operation From 300 i 10 EFPD to EOC -- ANO-1 Cycle 15 110 100 -
90 --
80 -
70 -
4 60 -
p (265.8,52) o (199*6' 52)
SHUTDOWN s.
50 MARGIN (300,52)
D OPERATION 4
(248.5,44)
LIMIT 40 '
RESTRICTED
,(248.5, 38) 30 -
OPERATION IN THIS (206.5'28)
REGION IS NOT ALLOWED s*o.
PERMISSIBLE OPERATING U'
(o, o,1)
(93.5, 9)
REGION 01 0
20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Rod Index, % withdrawn
)
0 20 40 60 80 100 l
l l
l l
l GROUP 7 0
20 40 60 80 100 l
l l
l l
1 GROUP 6 0
20 40 60 80 100 l
l I
l I
I GROUP 5 97-R-1012-03 Resision 0 COLR page 9 of 22
Figure is referred to by Technical Specification 3.5.2.6 Figure 4 Operational Power Imbalance Setpoints for Four-Pump Operation From 0 EFPD to EOC - ANO-1 Cycle 15 110-(-19.25,102) _
_(21.03,102) 100 -
(-26.24,92)
(22.53,92)
,g,
(23.49, 80)
(-30.56,80) g go.
c 2
C 70 -
N
(-33.92, 60),
,(33.83, 60) g, ICTED g
RESTRICTED REGION g
50 -
REGION c
40 --
PERMISSIBLE 30 PERMISSIBLE OPERATING OPERATING REGION REGION 10 --
e I
-50
-40
-30 20
-10 0
10 20 30 40 50 Axial Power Imbalance, %
l 97-R 1012-03 Revision 0 COLR page 10 of 22
)
4 Figure is referred to by Technical Specification 3.5.2.6 l
Figure 5 Operational Power Imbalance Setpoints for Three-Pump Operation From 0 EFPD to EOC - ANO-1 Cycle 15 110 100 -
90 -
(-19.60,77) 80 -
(21.41, 77)
(-32.41, 69 ~
h 70 (29.18,69)
,e
(-33.92, 60),
,(33.83,60) g, o
oN 50 -
(-34.13, 45) p
, (34.06, 45)
- sj 40 -
RESTRICTEC PERMISSIBLE PERMISSIBLE RESTRICTED REGION OPERATING 30 -
OPERATING REGION REGION REGION 20 -
10 -
0
-50
-40 30
-20 10 0
10 20 30 40 50 Axial Power Imbalance, %
97 R-1012-03 Resision 0 COLR page i1 of 22
r l
Figure is referred to by Technical Specification 3.5.2.6 1
Figure 6 Operational Power Imbalance Setpoints for Two-Pump Operation From 0 EFPD to EOC - ANO-1 Cycle 15 l
110 -
i h
100 -
7 E
$ 90 -
i t
80 -
I c.,
70 -
60 -
( 19.94,52)
(21.79,52)
, (34.05,46)
(-34.12, 46),
(-34.20,40) o 40 -.
,, (34.14,40)
(-34.34, 30)<
PERMISSIBLE 30 -
PERMISSIBLE o (34.29,30)
OPERATING OPERATING RESTRICTED RESTRICTED REGION REGION 20 -
REGION REGION 10 -
e
. +.
50
-40 30
-20 10 0
10 20 30 40 50 Axial Power Imbalance, %
l 97-R-1012-03 Revision 0 COLR page 12 of 22
4 Figure is referred to by Technical Specification 3.5.2 Bases Figure 7 Mk-B8ZL and Mk-B9ZL LOCA Linear Heat Rate Limits 19 18 g
(10,650 mwd /mtu) 17 g
6, 8,10-ft 4, 8,10-f:
16 m
2-n 2-ft
$ 15 a:
E I
(
(62,000 mwd /mtu, 2,,
12KW/ft) 3 13 12 s
11 0
10000 20000 30000 40000 50000 60000 70000 Bumup (mwd /mtu) 97-R-1012-03 Revision 0 COLR page 13 of 22
l I
i Figure is referred to by I
Technical Specification 2.1.2 f
Figure 8 Axial Power Imbalance Protective Limits 120 --
_-43.56,112.0)
(41.15,112.0),
(
ACCEPTABLE
!4 PUMP
{
(-56.31,100.0) <
OPERATION 100 --
456.31,100.0) 1(-43.56,90.7)
(41.15,90.7) :-
(
ACCEPTABLE l
3&4 PUMP
(-56.31,78.7) <
{ OPERATION 80 --
(56.31, 78.7)
( 43.56,63.8)
(41.15,63.8) f f
fACCEPTABLE 60 -- g j
(-56.31, 51.8),
j 2,3&4 PUMP f
OPERATION t
a 40 -- -l l
f l
)
i E
f 20 --
H
(-56.31, 0)
{
(56.31, 0)
-80
-60
-40
-20 0
20 40 60 80 l
Axial Power Imbalance, %
97-R-1012-03 l
Resision 0 COLR page 14 of 22
Figure is referred to by Technical Specification 2.3.1 Figure 9 Protection System Maximum Allowable Setpoints for Axial Power Imbalance 120 --
_-33.29,107)
(31.0,107),
(
- ACCEPTABLE l 4 PUMP 100 --
l l OPERATION
{
( 45.44, s9.5) <
j j
i (45.36, s9.5) 1(.33.29, 79.9),_
(31.0, 79.9) }
l ACCEPTABLE
{
l 3&4 PUMP l OPERATION l
(-45.44, 62.4) <
l 60 --
l 16(45.36, 62.4)
_ -33.29,52.4)
(31.0,52.4) :
l(
l ACCEPTABLE s.
l l2,3&4 PUMP l
l OPERATION 0 -- }
l 4
(-45.44, 34.9) <
{
j
{
i 45.36, 34.9) f b
l l
l g
l 20 -- g l
b l
o l
l
(-45.44, 0) l l
(45.36, 0)
-s0 60 40
-20 0
20 40 60 s0 Axial Power Imbalance, %
97 R 1012-03 Revision 0 COLR page 15 of 22
f e
i b
(
Figure is referred to by-Technical Specification 2.1.3 Figure 10 Variable Low RCS Pressure-Temperature Protective Limits 2400
--+--4 Pump
. SPump
--dr--1 Pump Each Loop l-a
)
- 2000 e
n.
I 5
I a
s I
1600 580 600 620 640 660 680 Reactor Outlet Temperature, Degrees F PUMPS OPERATING (TYPE OF LIMIT)
GPM*
POWER *
- Four Pumps (DNBR Limit) 383,680 (100 %)
110 %
Three Pumps (DNBR Limit) 286,609 (74.7 %)
89 %
j One Pump in Each Loop (DNBR Limit) 188,003 (49 %)
62.2 %
1
- 109% of Design Flow (2.5% UNCERTAINTY INCLUDED IN STATISTICAL DESIGN LIMIT) f
" AN ADDITIONAL 2% POWER UNCERTAINTY IS INCLUDED IN STATISTICAL DESIGN LIMIT 97 R 1012-03 Revision 0 COLR page 16 of 22
l Figure is referred to by Technical Specification Table 2.3-1 Figure 11 RCS Pressure-Temperature Protective Maximum Allowable Setpoints 2400 P=2355 PSIG T=618 'F
[2200 ACCEPTABLE UNACCEPTABLE i
OPERATION OPERATION 5m E
n.
1!!
N j 2000 P = (16.25 Tout - 8063) psig o
5ti l
1800 P=1800 PSIG 1600.
560 580 600 620 640 660 Reactor Outlet Temperature, 'F 97-R-1012-03 Resision 0 j
COLR page 17 of 22 1
l j
l 1
LIMIT IS REFERRED TO BY TECHNICAL SPECIFICATION 2.1 BASES l
KW/FT LIMIT FOR AXIAL POWER IMBALANCE PROTECTIVE
{
LIMITS l
l The combination of radial and axial peak that prevents central fuel melting at the hot spot is:
KW/FT Limit = 21.9 kW/ft l
97-R-1012-03 Revision 0 COLR page 18 of 22
\\
\\
i 1
LIMIT IS REFERRED TO BY l
TECHNICAL SPECIFICATION 3.1.8.3 AND 3.5.2.1 AND 3.5.2.2.2 AND 3.5.2.2.3
)
MINIMUM SHUTDOWN MARGIN l
The minimum available shutdown margin shall be maintained 21 %Ak/k l
l l
l l
l 1
97-R 1012-03 Revision 0 COLR page 19 of 22
O LIMITS ARE REFERRED TO BY TECHNICAL SPECIFICATION 3.5.2.5.4 AXIAL POWER SHAPING ROD INSERTION LIMITS AND
~ SETPOINTS Up to 483 +10/-10 EFPD, the APSRs may be positioned as necessary for transient imbalance control, however, the APSRs shall be fully withdrawn by 493 EFPD. After the APSR withdrawal at 483 +10/-10 EFPD, the APSRs shall not be reinserted.
I 97-R-1012-03 i
Revision 0 I
COLR j
page 20 of 22 i
i
a O
VALUES ARE REFERRED TO BY l
TECHNICAL SPECIFICATION 3.5.2.4 i
l ANO-1 CYCLE 15 TILT LIMITS AND SETPOINTS From 0 to 250 +/- 10 EFPD l
Measurement System Steady State Value (%)
Maximum Value (%)
<= 60 %FP
> 60 %FP Full In-core Detector 6.83 4.17 25.0 System Setpoint Minimum In-core Detector 2.78(*)
1.90(*)
25.0 I
System Setpoint Ex-core Power Range NI 4.05 1.96 25.0 Channel Setpoint Measurement System -
7.50 4.92 25.0 Independent Limit 3
1 From 250 +/- 10 EFPD to EOC Measurement System Steady State Value (%)
Maximum Value (%)
<= 60 %FP
> 60 %FP Full In-core Detector 6.83 4.00 25.0 System Setpoint Minimum In-core Detector 2.78(*)
1.90(*)
25.0 System Setpoint Ex-core Power Range NI 4.05 1.96 25.0 Channel Setpoint Measurement System -
7.50 4.92 25.0 Independent Limit W
Assumes that no individual detector affecting the minimum in-core tilt calculation l
exceeds 60% sensitivity depletion. The setpoint must be reduced to 1.50% (power levels >60% FP) and to 2.19% (power levels s60% FP) at the earliest time-in-life that this assumption is no longer valid.
97-R 1012-03 l
Revision 0 i
COLR page 21 of 22
o
. LIMIT IS REFERRED TO BY
' TECHNICAL SPECIFICATION 2.1 BASES LESIGN NUCLEAR POWER PEAKING FACTORS N
Maximum Radial (F,m) 1.80 Maximum Axial (FN) 1.65 Z
N Maximum Total (F )
2.97 y
I 97-R 1012-03 Revision 0 COLR
)
page 22 of 22 t
____.__._______J