ML20058L086
| ML20058L086 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 11/12/1993 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML20058L078 | List: |
| References | |
| L36-931202-803, NUDOCS 9312160138 | |
| Download: ML20058L086 (12) | |
Text
!
F L36 931202 803 g
SEQUOYAH NUCLEAR PLANT UNIT 1, CYCLE 7 CORE OPERATING LIMITS REPORT REVISION 2 November 12, 1993 Prepare :
%g W
/
//- IS-9.5 NuclearQueT Date l
Reviewed:
-Es<n A hrv
/ // - / ;7 - ?3 Reactor'En ine 'ing Supervisor Date h
/
ll-l$5h f
i Technical (Suppor Q ager Date b
/
/
L 3
PORC Chairmkn Date l
Revision 2
Pages affected 2-3 Reason for Revision The EOL/ARO/RTP-MTC and 300 ppm surveillance limits specified in Section 2.1 are revised to reflect new calculational methodoloav.
SEQUOYAH - UNIT 1 Page 1 of 12 Revision 2 9312160338 931208 PDR ADOCK 05000327 P
1 1
COLR FOR SEQUOYAH UNIT 1 CYCLE 7 1
1.0 CORE OPERATING LIMITS REPORT I
This Core Operating Limits Report (COLR) for Sequoyah Unit 1
'j Cycle 7 has been prepared in accordance with the i
requirements of Technical Specification (TS) 6.9.1.14.
j t
The TSs affected by this report are listed below:
3/4.1.1.3 Moderator Temperature Coefficient (MTC) 3/4.1.3.5 Shutdown Rod Insertion Limit 3/4.1.3.6 Control Rod Insertion Limits 3/4.2.1 Axial Flux Difference (AFD)
]
3/4.2.2 Heat Flux Hot Channel Factor (F (Z))
l a
3/4.2.3 Nuclear Enthalpy Hot Channel Factor (Fh) t i
'l 2.0 OPERATING LIMITS I
The cycle-specific parameter limits for the specifications listed in section l'.0 are presented in the following subsections.
These limits have been developed using.the NRC l
approved methodologies specified in TS 6.9.1.14.
The following abbreviations are used in this section:
BOL stands for,Beginning of Cycle Life ARO stands for All Rods Out i
HZP stands for Hot Zero THERMAL POWER-EOL stands for End of Cycle Life _
1 RTP stands for RATED THERMAL POWER i
i 2.1 Moderator Temperature Coefficient - MTC (Specification 3/4.1.1.3) i 2.1.1 The MTC limits are:
The BOL/ARO/HZP-MTC shall be less positive than 0 j
l Ak/k/*F (BOL limit).
With the measured I
BOL/ARO/HZP-MTC more positive than 0 Ak/k/*F-(as-measured MTC limit), establish control rod withdrawal. limits to ensure the MTC remains-less positive lthan 0 Ak/k/*F for all times in core life.
The EOL/ARO/RTP-MTC shall be less negative than or equal to -4.5 x 10 Ak/k/*F.
+
SEQUOYAH - UNIT 1 Page 2 of 12 Revision 2
.... ~..
. = _.-
1 e
9 i
COLR'FOR SEQUOYAH UNIT l' CYCLE 7 2.1.2 The 300 ppm surveillance limit is:
}
The measured 300 ppm /ARO/RTP-MTC should be less negative than or equal to -3.75 x 10 Ak/k/*F.
+:
l t
2.2 Shutdown Rod Insertion Limit (Specification 3/4.1.3.5) f 2.2.1 The shutdown rods shall be withdrawn to a position as defined below:
Cycle Burnuo (MWD /MTU)
Stens Withdrawn t
< 2,000 2 226 to 5 231 j
> 2,000 to < 14,000
> 222 to 5 231 1 14,000
> 226 to < 231 l
'i 2.3 Control Rod Insertion Limits (Specification 3/4.1.3'.6) l 2.3.1 The control rod banks shall be limited in physical insertion as shown in Figure 1.
1 2.4 Axial Flux-Difference - AFD (Specification 3/4.2.1)
.i l
2.4.1 The axial flux difference (AFD) limits are provided in Figure 2.
=
2.5 Heat Flux Hot Channel Factor - F A (Specific. tion 3/4.2.2)
J F,(Z) $
- K(Z) for_P > 0.5 P
p RTP F,(Z) $
- K(Z).
for P $ 0.5 0.5.
THERMAL POWER where P =
RATED THERMAL POWER SEQUOYAH - UNIT 1 Page 3 of 12 Revision 2 i
I 1
t
-l 4
COLR FOR SEQUOYAH UNIT 1 CYCLE 7 i
RTP 2.5.1 F
= 2.40 j
a i
2.5.2 K(Z) is provided in Figure 3.
l i
2.5.3 Note that the W(Z) values required by TS SR.4.2.2.2 are provided in Figures 4 through 8.
This information is sufficient to determine W(Z) versus core height for all cycle burnups through the use-of
~
three point interpolation.
2.6 Nuclear Enthalov Rise Hot Channel Factor - Ff, (Specification 3/4.2.3) i F[g 5 F"g" * (1 + N
- [1 - N )
3 33 i
-THERMAL POWER where P =
RATED THERMAL POWER
.e 2.6.1 F[gTP = 1.62 2.6.2 PF, = 0. 3 3
i i
~!
i i
J SEQUOYAH - UNIT 1 Page 4 of.12 Revision 2
'I 1
i COLR For Sequoyah Unit 1 Cycle 7
)
i
( 09,231)
(.65,231) 231 (Fully Withdraw n Re91on) /
)
g
/C 0 5,2 2 2)
(.61,222)
' ' B AN K B
- =
200 R
O (1.0.182) d i
B 160 a
n k
l BANK'C St 120 i
e P
P o
80 J,es
)
s i
. BANK D t
i o
40 n
1
(.19,0 )
0 0.2 0.4 0.6 0.8 1
(F ully In s e r te d) Fraction of Rated Thermal Power FIGURE 1 Rod Bank Insertion Limits Versus Thermal Power Four Loop Operation e
Fully wit hdrawn re gion shall be the condition where shutdown and control banks are at a position within the interval of ! 222 and ! 231 ste p s wit hdraw n. Inclu sive.
F ully withdrawn shall be the position as defined below, Cvele Burnuo (M Wd/MT U)
Stee Withdrawn
!2000
- 2 2 6 to ! 2 31
- 2000 to e 14,000 h 222 to ! 231
= 14,0 0 0
! 226 to ! 231 SEQUOYAH - UNIT 1 Page 5 of 12 Revision 2 i
I
l COLR For Sequoyah Unit 1 Cycle 7 120 110 f
e4
(-15,100)
(6,100) 100 O
I 90 Unacceptable Unacceptable R
operation operation i
a 80 Acceptable
{
e d
70
-Operation 60
[
e i
r 50
(-31,50) ~
(20, 0) m 40 P
30 0
'l W
e 20 r
10.--
o 40 20 -10 0
10 20 30 40 50 Flux Difference (A1) %
FIGURE 2 a
Axial Flux Difference Limits As A Function Of Rated Thermal Power SEQUOYAH - UNIT 1
. Page.6 of 12 Revision 2
,u=
2-a
..~n
-s._m,.
,s_
l
~
l I
COLR For Sequoyah Unit 1 Cycle 7 l
i r
1.2 1.1 N
o 0.9 r
$ 0.8 1
i 0.7 I
e i
d 0.6 l
0.5 Core Height K(Z)
- l 0.000 1.000 l
P o,4 6.000
'1.000 0
10.800 0.940
'l 9,
e 0.3 12.000
.0.925 r
j o.2 i
0.1 t
1 I
0 O
2 4
6 8
10 12 Core Height (Feet)
FIGURE 3 K(Z) - Normalized Fq(Z) as a Function of Core Height j
SEQUOYAH - UNIT 1 Page 7 of 12 Revision 2
.. _ ~
i-HEIGHT MAX.
(FEE 7) w(2) 1.50 O.0 1.0000
,ii i
i o.2 3.o000 i
t i i i
I 4
' t O.4 1.0000 i I i i
l i
O.6 1.0000 i
i i i i i 8
l O.8 1.0000 i
i t i i i t
8 1.0 1.0000 1.45
, i i
i i
1.2 0000 i
t i
i i i i i
1.4 1.0000 I i i i l
l i
t t.6 1,0000 j,
i :
j t i i
1.8 1.2835 i ;
e i
i i
2.0 1.2634 1.40 I
i i e
i 2.2 2.2428 i ;
i e i t i
I I
2.4 1.2222 i
i t i
I ii 2.6 1.2015 I
i t i
i i i 2.8 1.
797 i
i i i i
4 3.0 1.
643 IN i
i 3.2 1.1578 I
i t
3.4 1.1574 n
4 i
i 3.6 1.1608 N
i 3.8 1.1636 i
i i
i v
ii
' '652 E1.30 4.2 1.1660 t
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a
{
i 4.4 1.1658 X
4 I
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2 l '
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l
', y!.,'
l 5.0 1.1581 5.2 1.1595 i
e 4
o 5.4 1.1734 4
I I
i 5.6 1.1870 I
i a
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< 1.20 i
8 a
6.2 1.2388 s
i l
i e,,
1.2475 2
t i
t' i
4 U
i
'l 6.6 1,2546 i
6.8 1.2601 i
+
L e * ** e.
I 1
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w i
T' i
6 1.15 7.2 1.2656 i,
i 7.4 1.2691 i
I 7.6 1.2706 I
i i
1 i
7.8 1.2696 t
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8.0 1.2662 i
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i 1.10 8.2 1.2604 i
4 i i 8.4 i.2516 i '
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! l 4
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9.0 1.2377 i
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t i
t i
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1 i
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i 1
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10.0 1.2826 i
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a i e i
10.2 1.2990 1.00 CORE EIGHT (FEET) l$
I. "8888
'0' 0
2 4
6 8
10 12 11.0 1.0000
.j
,000 BOTTOM TOP 3,
3 11 6 1.0000 11.8 1.0000 12.0 1.0000 FIGURE 4 SEQUOYAH UNIT 1 CYCLE 7 RAOC
SUMMARY
OF MAX W(Z) AT 150 MWD /MTU (TOP AND BOTTOM 15% EXCLUDED AS PER TECH SPEC 4.2.2.2.G)
Page 8 Of 12.
n Hf!GHT wAA (FEET) w(2) 1.50 0.0 1.0000 l
[
]
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s j
O.6 1.0000 I
l O.8 1.0000 4 '
1.45 1.0 1.0000 1.2 1.0000
! l 8
1.4 1.0000 8
1.6 1.0000 I
I 1.8 -
1.2396 j,40 l
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t
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.,4 e L e j i 4 i l j
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g o
6.8
- 1. 3@2
'A, e
9 i
i t
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i ;
i e i
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7.8 1.3041 8.0 1.2955
' I I
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' f '
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9.0 1.2257 1.05 9.2 1.2199 9.4 1.2131 9.6 1.2254 9.8 1.240
' i 10.0 1.2533
' i i I
i 8 10.2 1.2673 jg 0
2 4
6 8
10 12
'O 4
'.m COREHEIGHT (FEET) 11.0 1.0000
2 BOTTOM TOP 11.4 1.0000 11.6 1.0000 1
11.8 1.0000 12.0 1.0000 FIGURE 5 SEQUOYAH UNIT 1 CYCLE 7 RAOC
SUMMARY
OF MAX W(2) AT 4000 MWDIMTU (TOP AND BOTTOM 1S*4 EXCLUDED AS PER TECH SPEC 4.2.2 2.Gl Page 3 of 11
'a MEIGHT WAK (FEET)
Wl Z )
1.50
'- 0 j
l i ! i e i i t
i i
O.2 1.0000
! 1 I
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t 0.4 1.0000 i
I 6
1 i i
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0.8 1.0000 i
i t
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1.0 1.0000 1.45 i
1.2 1.0000 1
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8 i
1.4 t 0000
- i j
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i 1.8 1.2564 I
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+ 1 6
8 2.0 1.2435 t {
1.40
,, i I
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~
e 4 I i
7.8 1.3196 l
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8.0 1.3065 i
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1.10 i
, i i i i i i.
8.2 1.2897 8.4 1.2693 i
i
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8.6 1.2449
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1 4 i e i i i
9.0 1.2077 i
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- 9.2 1.2015 4
l i
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8 9.4 1.1912 i
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l 1
i I 9.6 1.2045 i
i j
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i i a I i e
i 9.8 1.2196 i
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i i i i i t i i 10.0 1.2326 i
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i i i i i 10.2 1.2464
)~g 0
2 4
6 8
10 12 CORE EIGHT (FEET) 18:'
I:8888 11.0 1.0000 BOTTOM TOP
):2
.000o 11.6 1.0000 11.8 1.0000 12.0 8.0000 FIGURE 6 SEQUOYAH UNIT 1 CYCLE 7 RAOC
SUMMARY
OF MAX W(Z) AT 7000 MWD /MTU l
(TOP AND DOTTOM 15*' EXCt.UDED AS PER TECH SPEC 4.2.2.2.G)
Pagelo of n
]
n t
a H[]OMT MAX
[
(FEET) w(2) 1.50 0.0 i.OOOO O.2 1.0000 j
I I ' I I
I i
0,4 1.0000 I ' '
I I
I O.6 1.0000 l I i 4
6 8
f 0.8 1.0000 i
' I 1.45 i
i 1.0 1.0000 I I I
! I i
1.2 1.0000
! I i
' l 1
1.4 1.0000 1.6 1.0000 1
I
' ! I i
1.8 1.2860 i
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' ' i 6
2.o 1.2729 1.40 I
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2.2 1.2597 3
1 8
i i i i
1 2.4 1.2461 I
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2.6 1.2321 l
i 1 i !
l i
i 2.8 1.2180
' 20'2 1.35 I
I I i I i i i !
j 3.2 1.1932 I i I. + +. I I I i i 3.4 1.1984 m
N I
3.6 1.2010
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l t
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3.8 1.2074 3c1*30 i i o ' '
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o j,
y 4
e 6.0 1.3030 s1.20
,/
6.2 i.3148 2
S4 32 8 i
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.+i it i
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1.15 l
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i j,10 I
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8 t
8.4 1.2439
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- 8 i 9.2 1.1672 jg 9.4 1.1593 i
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1 I
I 10.0 1.1982 1 l I
I
' l 10.2 1.2116 jy 0
2 4
6 8
10 12
'0 '
COREHEIGHT (FEET) l:'
0000 11.0 1.0000 BOTTOM TOP
,2
- O000 3,
11.6 1.0000 11.8 1.0000 12.0 1.0000 FIGURE 7 SEQUOYAH UNIT 1 CYCLE 7 RAOC
SUMMARY
OF MAX W(Z) AT 10000 MWD /MTU (TCP AND BOTTOM 157. EXCLUDED AS PER TECH SPEC 4.2.2.2.G)
J Page 11 of I'1
'i HEICHT Mu (FEET) w(2) 1.50
' 0 oo t
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t o,2 3,oooo I
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1.45 I
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1.0 1.0000 I
3.2 3.00o0 i
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i 1.6 1.0000
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1
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1.8 1.2736 i i i
1.40 i
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2.0 1.2589 I
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2.2 i. 2uO i
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2.8 1.1968 4
l l
t e
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1 5
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5 8.4 1.2282 i
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6 i
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4 i
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i_
t I I i
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6 I
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4 i <
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l 4 i i
9.6 1.1744 l
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6 4
3 9.8 1.1821 l
6 t
i i 8
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10.0 1.1916 i
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e i 1
8 10.2 1.2045 i
1.00 0
2 4
5 8
10 12
,'0. 6 CORE HEIGHT (FEET) 3,0000 i
20.8 i. ww 11.0 1.0000 BOTTOM 11.2 1.0000 TOP i
i,,,
3.oooo 11.6 1.0000 11.8 1.0000 I
12.0 1.0000 I
l 1
L.
FIGURE 8 k
,~
j SEQUOYAH UNIT 1 CYCLE 7 i
SUMMARY
OF M AX W(Z) AT 14000 MWD /MTU j
i (TOP AND BOTTCM 15T. EXCLUDED AS PER TECH SPEC 4.2.2.2 G1 l
Page n Of n
-