ML20062D288
| ML20062D288 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 09/13/1990 |
| From: | Patricia Anderson, Boynton D, Jordan R Maine Yankee |
| To: | |
| Shared Package | |
| ML20062D283 | List: |
| References | |
| NUDOCS 9011130013 | |
| Download: ML20062D288 (23) | |
Text
1s e
i ATTACHMENT E Cvele 12 Core Operatina limits Report 1
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APPROVAL $
1 M $6 i
Prepared by:
.R. P. JQn f Date '
Senior NEclear Engineer Reviewed by:
h.I. b uhms he/4 B D. B. BoyntWn
' Date Nuclear Engineering Section Head r
n, r, - /
<lbll0 Plant OpeFations Review Committee
/Date Approved by:
.W$ c+> -
9 CM P. L. Anderson,
" Date Maine Yankee Project Manager (YAEC) h l1V H/fo u
' G. D. Whittier, Manager Date Nuclear Engineering and Licensing
//
Chf/0 )
x. -?
g E W7 Blackmore Date Plant Manager l
(L k
? El ?0 E. T. Boulette, Vice President Date l.
/
$ha C. D. Frizzle, Presidelit
/ Dats 11 September 13, 1990 Rev. O CDf 9081.LTR
MAINE YANKEE CORE OPERATING LIMITS REPORT INDEX EAge No.
Rev. No.
Qgig I
O September 13, 1990 2
0 September 13, 1990 3
0 September 13, 1990 4
0 September 13, 1990 5
0 September 13, 1990 6
0 September 13, 1990 7
0 September 13, 1990 8
0 September 13, 1990 9-0 September 13, 1990 10 0
September 13, 1990 11 0-September 13, 1990 12 0
September 13, 1990 13 0
September 13, 1990 14 0
September 13, 1990 l
l 15 0
. September 13, 1990 l
16 0
September 15, 1990 17 0
September 13, 1990 l.
iii Septetaber 13, 1990 Rev. O CDf9081.LTR' r
s
TABLE OF CONTENTS EiLER List of Tables v
List of F4 ures vi 1.0 Introduction 1
2.0 Core Operating Litoits 2
iv September 13, 1990 Rev. O CDf9081.LTR
LIST 0F TABLES Number Jills Eggg 1
Thermal Margin / Low Pressure 3
Reactor Trip Coefficients 2.
Specified Acceptable fuel 4
Design Limit (SAFDL) 3.
Fower Reduction Coefficients 5
.with an Inoperable Incore Monitoring System l
1 1
l l
L l
l v
September 13, 1990 Rev. 0 1
C0F9081.LTR g
l
-q
.o J
LIST OF FIGURES i
Number ljila EARA 1.
Thermal Margin / Low Pressure 6
Trip Setpoint (A, versus Excore Symmetric Offset) 2.
Thermal Margin / Low Pressure Trip 7
Setpoint (QR versus fraction RatedThermalPower) 3.
. Symmetric Offset Trip Limit 8
4.
Power Dependent Inscrtion Limit 9
l 5.
Excore Symmetric Offset, (LOCA 10 Limiting) (Incore Monitors Inoperable and CEAs Restricted Above 100% PDIL) l 6.
Excore Symmetric Offset, (LOCA 11 Limiting) (Incore Monitors Inoperable) 7.
Total Radial Peaking Limit 12 8.
Allowable Percent increase in 13 Total Radial Peak
^
9.
Required Shutdown Margin 14 l
10.
Excore Symmetric Offset LC0 15 11.
Excore Symmetric Offset LCO for 16 Turbine Operation in IMPIN Mode l
l 12.
Linear Heat Generation Rate Limits 17 l
versus Core Height l
l vi September 13, 1990 Rev. O CDF9081.LTR m
1 1
1.0 INTRODUCTION
This report provides the cycle-specific limits for operation of the Maine Yankee plant thrcugh Cycle 12.
It includes the limits for:
1.
Symmetric Offset Trip Limit 2.
Specified Acceptable fuel Design Limit (SAFDL).
3.
Power Dependent Insertion Limit (PDIL).
4.
Excore Symmetric Offset (LOCA Limiting With Incore Monitors Inoperable and CEAs Restricted Above 100% PDIL).
5.
Excore Symmetric Offset (LOCA Limiting With Incore Monitors Inoperable) 6.
Total Radial Peaking Limit.
7.
Required Shutdown Margin.
8.
Excore Symmetric Offset LCO.
9.
Excore Symmetric Offset LC0 (IMPIN Operation).
10.
Linear Heat Generation Limits.
In addition, this report includes a number of cycle-specific coefficients used-in.the generation of certain reactor protective system trip t
I setpoints or allowable increases in radial peaking.
If any of the limits contained within this report are exceeded, corrective action will be taken as defined in the Technical Specifications.
This report has been prepared in accordance with the requirements of l
l Technical Specification 5.14.
The core operating limits have been developed l
using the NRC-approved methodologies listed in Technical Specification 5.14.2.
1 i
1 September 13, 1990 Rev. O CDF9081.LTR
9; -
e yu I
2.0 CORE OPERATING LIMITS The-values and limits presented within this section have been derived
-o using< the NRC-approved methodologies listed in Technical S;ecification 5.14.
A11: values and limits in this section apply to the Cycle 12. Cycle 12 must be operated within the bounds of these limits and all others specified in the i
Technical Specifications, s-
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2 Septert.ber 13, 1990 i
I Rev. 0 1'
V i
C0F9081.LTR.
l-
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l!j' TABLE 1 1
-THERMAL' MARGIN / LOW PRESSURE REACTOR TRIP COEFFICIENTS
[
(Techni".e' Specification 2.1.1.b and 3.10.C.2.b.1)
Coefficient Value
'A 2053.2 B
17.9 C
-10053.0 L
A, See Figure 1 QR See Figure 2 3
u i
l Note: The: thermal margin / low pressure trip setpoint is calculated as the
?
greater of:
i, A[ A.. QR ] + :BT, + C 3
3 e'
- 0 or 1835 psig s
fil 4
pm:
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3 1
k r
8'
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4 1;
- 1
'k i
i 3
September. 13, 1990
.Rev. 0 CDF9081.LTR
- i
=..
1 TABLE 2
-SPECIFIED ACCEPTABLE FUEL DESIGN LIMIT (Technical Specification-2.2.B)
Fuel Tvoe Limit (kw/ft)*
BQL EQL M
20.8 20.0 P-21.1 20.0 Q
22.1
- 0.6 R
23.5 22.4 3;.
- The limit for each fuel type decreases linearly with the cycle average burnup. 1.The E0C burnup for the purposes of establishing this relationship is j
14500 MWD /NTU cycle average burnup.
x :
je!
(.-
- 12
'i, b
4 September 13, 1990 Rev. 0 CDF9081.LTR-
4 TABLE 3 Power Reduction Coefficients with an Inonerable incore Monitorina System (Technical Specification 3.10.C.3.a)
+
b R value.
Symmetric Offset Ranae 75
+0.05 to +0.10 81 0.00 to +0.05 96 0.00 to -0.05
-i l
90
-0.05 to -0.10 L
CR Value 1
0.80 i
l 7
1 I;p, 1,
F i
L l * ^' ;
3
=f i
I j
l t-J i
f.
L 5
September. 13. 1990
~
Rev. 0 1
CDF9081' LTR
(
Ii
1 FIGURE 1 Thermal Marcin/ Low Pressure Trio Setooint
.(83 versus Excore Symmetric Offset)
(Technical Specification 2.1.1.b)
(Techn! cal Specification 3.10.C.2.b.1)
WHERE:' 00NB"A eQR3 1
TRIP 10053.0 7
AND PVAR = 2053.2 QDNB+ U.9TC g,
T = COLD LIG TEMPERATURE F C
1.40 _ _
l 1.35
- a-
. 1.30
!r-1 V
p s-\\.,
4
- A (+)=0.50926(S.O.)+1.01813 ]?,7 3
1
- n I
4,: 1.20 I
3 I
E E
I 1.15 T
d A (-)--0.23225(S.O.)+0.9973 3
E
',,-?-
I I
E
}
1.10 m.
y g I
I I
I 4
I.'-
1 I
1 g
I k
n ik
~
g
, 4 I
I N E
3 m
X I
1.00
-C.5_ -C'.4 ' d.3
-0.2 4.14 0.0 - 0,11 - O'.2
' O'.3 0'.4 0.5
.>v
- Excore Symmetric 0ffset'Y, =.'A*((U-L)/(U+L))+B
_. 1
[
H 6
September 13, 1990
)
Rev. 0 C0F9081.LTR l
1 4
y i,
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FIGURE 2 1
4
= Thermal Marain/ Low Pressure Trio Setooint
.i
.(QB, versus Fraction Rated Thermal Power)
.(Technical Specification 2.1.1.b)
. (Technical Specification 3.10.C.2.b.1)
J L
3.
i I
WHERE: QDNS " #
- 1 1
TRIP c,
AND - P
= 2053.2 0DNB+ 17.ETC 10053.0 VAR
. w T = COLD LEG TEMPERATURE, F C
y b
.l 1.2
,,D llc y
-,c
+
1.0 i
=
F
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h#
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1
^$,
30.8
, H, a
s).'
f 1
JuF 4 -
,'g r
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':0
- Oc
- 0.6 1
- a -
( 1.20,1.2000 '.. )
~
'i (1.00,1,0000:) W:
w " 3.,
I 0.4-
=_,=_
.. s'1 u
g.
(.79,.9312 ); g L,
m m,
lf'=;
s
( 0.55,0.7175 ) %_.i _
-~
p. ',
f
- 0.2 u
F
( 0.10.0.2198 1) i L
- n.,
s a
. n,n a-l,L 0.0 0.2 0.4 0.6 ?
0.8
- 1.0.
1.2
~
a Qw, i;
,f
' Fraction of Rated Thermal. Power-ml '
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._ i y
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' September.13,E1990
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,3
- .ie FIGURE 3 Symmetric Offset Trio limit
-(Technical Specification 2.1.1.c)
(Technical Specification 3.10.C.2.b.1) i 1
its l;
e
\\
ics 1
(.:
'I Trio Limit
,o I
l.
(-0.5000, 15.0 )
~
(-0.5000, 50.0 )
(-0.2200.100.0) i.
0.0000,110.0) as-i 4(( 0.1800, 100.0)
!( 0.5000, 50.0 )
^
x'
( 0,5000, 15.0:)
- g
1 s ys L
E
- f i
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1] '
% in W
-l v
m 1
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y<,
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k m.=1 p,
u l' '
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as =
.j.
t
-is '.5-0.5 4.4 4.3 4.2 -0.1 c.0
-4
'N
.-O 0,1 0.2 0.3 " C.4 0.t. 0.8 4
$fE Excore S.ymmetric Offset Y =' A*((U-L)/(U+L))+8 3
h 9
Ec G
September 13, 1990 Rev. 0
.I y,,'
l f s
+ :, r '
?.C0F9081.LTR
+
4 1
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g
__ l a.s,.
8' J $.
.fi
-is m
FIlilJRE 4 Power Dependent insertion Limit 1
(Technical Specification 3.10. A.1)
~ (Technical Specification 3.10.C.2.b.1) i l-t v. -
.4 4
l
..........:....s..
o
- z......
......2.
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n
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3 ne a
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.r,,.,..
i......
m
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v-s,,
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i-
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- t L o t l :1;.0 ' ;' r
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6
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FIGURE 5 Excore Symmetric Offset. (LOCA limitina)
(Incore Monitors Inoperable-and CEAs Restricted Above 100% PDIL) i i
(Technical Specification 3.10.C.2.b.1)
(Technical Specification 3.10.C.3.a.2) x Coor'dinates (Excore Syunetric Offset, % Rated Power)
'c
(-0.40,20.)'(-0.40,00.) (+0.0,60.) (+0.40,50.) (+0.40,20.)
an.o t
'00.o L
7 L
1 ro.o
'i L.
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. g;L eo.o ap.
4
.LL
-hv;3.,
L m
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4
^'
37 i=Le no p
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a
=-
,>a
. w. '~
r ->
\\l o
i p.o s
El
- o
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g; no-
- c. ;
- ,-m,3 u i' Lmo y'
a
,.in.o h' f1
, ".s,4s e -del -is.d.2 ::42 do 1it '. is. is :o'.4 is 0.8
-o f
Escore Syuunetric Offset y,._A*((U-L)/(U+L))+B ji t p
3
}
10 September:13, 1990 Rev.:0
/ -CDF9081'.LTR
.?
e
-5
>'y
_,9 e.
FIGURE 6 Excore Symetric Offset. (LOCA Limitina)
(Incore Monitors Inoperable)
(Technical Specification 3.10.C.2.b.1)
(Technical Specification 3.10.C.3.a.3)
Coordinates (Excore Symetric Offset, % Rated Power)
(-0.40,20.) (-0.40,40.) (.0.0,50.) (+0.40,40.0) (+0.40,20.0) 80.0 70.0 E.0 5
c-0-
A"~
2 y
'~
- e.0 o
tg 30.0 C
m.e -
10.0
-c.8 -d.5
-d. 4 -d.3
-d.2 -d.1 d.0 d.1 d.2 d.3 d.4 d3 C+8 Excore Symetric Offset Y, = A*((U-L)/(U L))+B 11 September 13, 1990 Rev. O C0F9081.LTR
- .../..
,~,
FIGURE,
. Total Radial Peakino limit
.(Technical. Specification 3.10.C.2.b)
NOTE:- 1. THIS CURVE INCLUDES 10% CALCUt ATIONAL UNCERTAINTY -
- 2. F
=F X t03 R
R T
l- ).
- 3. MEASURED F SHOULD BE AUGMENTED BY MEASUREMENT g
Y.
. UNCERTAINTY (8%) BEFORE COMPARISON TO THIS CURVE.
t?9 l
l k
l 1,
t78 COORDINATES (KMWO/MT F )
R (0.00,1.747)
(0.50,l.7471 (1.00,1.742)
(2.00,l.743) 177 (4.00,l.7411 (6.00,l.7331-w (8.00,1.7231 (10.00,1.7281-A
[" "
l(E
'(12.00,1.746)
-(14.03,1.7481 (15.00,1.7481-l 1.76 l
g Y
i 4
)
l/ y N,
- ..t75 b
I"'""'
7 q
u,
,,u,,,,.
i i
h, i
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uiu u,,u,u luiu
[
3! ' E74
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f,,
I
,1ll'
\\
\\
( t72
- 5..
t yi(i t7g l? ::e 0/
1 2
3 :4 5
6' 7g 8-
'9 10 ' 11
'12 13 ' 14 15
^ CYCLE AVERAGE EXPOSURE'(KMWD/MT)
K.,
p K
12 September 13, 1990 r i. -
Rev. 0 l
L B
!CDF9081.LTR ii:, <
ja. 7
~
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4" '
FIGURE 8 Allowable Percent increase in Total Radial Peak (Technical Specification 3.10.C.2.b.2)
. q:
[
NOTE: CEA's are maintained at or above 100% power t..
t
. Insertion limit when applying 3.10.C.2.b.2 I
i s,
"o.
110 ll (2.70,100.0)
,s
- t..
o-100 m
it-O.
.1. CL 3
i i b:
(3.20,90.0 )
- o.
L!(
M.I
'(
h
.D
. T b
s m
,,o,o
-g p1%
.O.
't W,_>
f '.--
t m
y ::e 80 k
(8.80,80.0 )
q f
'. o :
N t
HW 1
ll, a s
'h E
\\
~'(13.18,70.0 )
s\\
!ll'
((&.,ip t 70
!O 2 ' 4 ! 6 8
10 12 14 ' 16. 18 L 20.' 22 24: 26. 28 i
in
[ ',, #
- Allowable % Increase.in F (above. Figure 7).
l /o
)
' )[
20 !,
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c 1
13 September'13, 1990 b
Rev.-0 F,
o w? - CDF9081 ~.LTR' j
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FIGURE 9 Reauired Shutdown Marain a
(Technical Specification 3.10.B.1) n 0.0 j
l-i 7.5 I
7.0 s.s -
i q
m s.0 P = 10C P = ' 80 i
- s.s P = 60 m
, A0 P= 40 P = 20 s
a 54.0 p, o I' '3J c
. 3,,
2.s
-W!
. SDM = 5.20 - 0.00350C + 0.0200P F
- 2.0 when C is less than 400 PPM w
L 1.s i~ SOM = 3.80 '+ 0.0200P -
when C 1s greater than or equoi to 400 PPM g*
. 5,0 where
'SOM le the requtred shutdown morgin in percent reactivity C N the RCS boron concentration in PPM..
- 0.8 J'
P is the power levelin percent of rated power j
,, 0.0
-0 too 200 300 400 SCO 800 700 800 90010001100 t200130014001500160017001800 '
','h,
- g.!
. o, -.,
t 1 ACTUAL. RCS BORON CONCENTRATION (PPW)
~
c 9,-
4 14 September 13, 1990 t
Rev. a
~
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, ;;[ lCDF90'81'.LTR e
3 blY
'.1 )
r
4 :.. j i
E190RE 10
.'Excore Symmetric Offset LCO I
(Technica11 Specification 3.10.C.2.b.1)
(Technical Specification 3.10.C.7)
_.....,i...i..
_.i [-
t
.r
.t._.
-110
..a...
... t.
. i.
r.
100-p
...t Leo
- m...
..... i..
v..
(-0.4000, 20.0 )
i..
- t.. _... t..
2
.r. 9 a_
(-0.4000. 50.0 )
.u
_. t
-(-0.1200,100.0 f_..
.. L a._....._..
... J.
(- 0.010 0,105.0
( 0.0800,100.0 )
...t_.
80 0.4000, 50.0
~~'
. ~. -.
f,...L...
31 0.f 000, 20.0
..1 3
... 'g f.-
g.
.7. _.
_.....3 I.
s
- t.. _,.... I n,.
o 1
.+_
60 e
u,1,
_i
\\
L u
.m.
50 r
,.r.
- u....
- u.
s i,.
.. _ =..
.,1 e
. ; 40
- o, t
e
- .a. - 30 s
+.
r...
,m m,
1 _,
=
n o#-
'. ' ' - _ ~
.~ ~ _ ~ ~
20 p
.t,....
s<
..L m.._._
+
m.
,p.
r 30-
~.
._..t__......
s u,
- o.,
,.T
.l. _.....
..4a...,-
e
, %.v r.
a,/
m et t
-0.8 0.5.-C.4 -0.3 -C.2 -0 t c 0.0 /.1 ' O.2 L 0.3 ' O.4 ' O.5 ' 0.5 '
0 m
- nniv W@
- Excore Symmetric Offset M%L
' Y = Ae((U-L)/(U+L))+B l.
A..a, 15-September 13, 1990 7J s
Rev; 0' a
.h.
p b
i i,
- l. k I
- h. ' s.
C0F9081.LTR' o. -
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,.,.-p
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.(.* 8'4 i
FIGURE 11-i
.y i
Excore Symmetric Offset LCO for Turbine Operation in IMPIN Mode (Technical-Specification 3.10.C.2.b.1)
(Technical Sp0cification 3.10.C.7) im _a i F c.
i.._.i
.. t.
..4 u,r, 1.
110 -
_r.
l u
s u
-100-IMPW MODE LCO
.g..
. t.,
, l.
(-0,4000, 20.0) 6 t
- ..,g
~-
(-0.4000, 40.0) 90
(-0.1200, 90.0 )
9 to -
.( 0.0800, 90.0 )
l
(-0.0100, 95.0
... 3
. t_.
80
. _7 0,4000, 40.0 u
1.
0.4000, 20.0 s
c..
g...
t.
3 t..,..
.. y.
f_
. r...
3..
- 1..
= _,,
..L i,,..
l.
. t L. t.
i -
1
.. f.
-.,.. 2. _
y
-t
+
..r
- 50 t..
.. u.
.i.
g.
.. t.a% g.
i
\\.
.g
- t
_=
+. o.-
l.
s q.
, p.t
-g
.r.....,
1...
..i
..T 1..
s l
l.
, _. r.. -..
g n
.r..T._.,, t.
v.
s 7
t l
m
,l4
-.]
i
- 0-
~
L
- -0.6-0.5 -0.4.11.3 -0.2 -0.1 ' O.0 0.1 0.2 1 0.3 0.4 0.5 0.6 o
Excore Symmetric Offset Y = A*((U-L)/(U+L))+B I
o, 16 September 13, 1990 Rev.-0 CDF9081.LTR y
..e i
)I *. '-
i (ll
\\
' ) :.
1 n
~ 4,3 E1MRE 12
' Linea Heat'Gener" ion Rate limits versus Core Heiaht (Technical Specification 3.10.C.1)
(Technical Specification 3.10.C.2.b.1) f,.
(Technical Specification 3.10.C.2.b.2)
-l u
l p
20 g'19 e
O-181 UNACCEPTABLE OPERATION Y
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