ML20093F179
| ML20093F179 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 09/28/1995 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML20093F160 | List: |
| References | |
| NUDOCS 9510170313 | |
| Download: ML20093F179 (12) | |
Text
f L36 950 920 802 SEQUOYAH NUCLEAR PLANT UNIT 1, CYCLE 8
, CORE OPERATING LIMITS REPORT REVISION 0 September 20, 1995 4
Prepared:
CWC "
/ 9-26-95 4
Nuclear Fuel V Date Reviewed:
dw&lu Reactef Engineering Supervisor hSC / 9 .2 P- TS Date f
Technica
.. as, n Uppor~t Manager
/ ThYbY Date w i b /
PORC Chairman / [/
Date Revision 0 Pages affected Reason for Revision i
SEQUOYAH - UNIT 1 Page 1 of 12 Revision 0 9510170313 951010 PDR ADOCK 05000327 P PDR
- n. l 1
3 . * =
,, COLR FOR SEQUOYAH UNIT-1~ CYCLE'8
+
1.0 CORE OPERATING LIMITS REPORT This Core Operating-Limits Report (COLR) for Sequoyah Unit l' l Cycle 8 has.been prepared in accordance with the ,
requirements of: Technical Specification (TS) 6.9.1.14.
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 (Fg(z))
3/4.2.3 Nuclear Enthalpy Hot Channel Factor (FNAH) 2.0- OPERATING LIMITS The cycle-specific parameter limits for the specifications listed in section 1.0 are presented in the following subsections. These limits have-been developed using the NRC 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 HZP stands for Hot Zero THERMAL POWER EOL stands for End of Cycle Life RTP stands for RATED THERMAL POWER 2.1 Moderator Temperature Coefficient - MTC (Specification >
3/4.1.1.3) 2.1.1 The MTC limits are:
The BOL/ARO/HZP-MTC shall be less positive than 0 Ak/k/ F (BOL limit). With the measured BOL/ARO/HZP-MTC more positive than .8 x 10 4
-Ak/k/*F (as-measured MTC limit), establish control rod withdrawal limits to ensure the MTC remains less positive than 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 10-4 Ak/k/ F.
SEQUOYAH - UNIT 1 Page 2 of 12 Revision 0
,, COLR FOR SEQUCYAH UNIT 1 CYCLE 8
- 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 10-4 Ak/ k/*F.
2.2 Shutdown Rod Insertion Limit (Specification 3/4.1.3.5) 2.2.1 The-shutdown rods shall be withdrawn to a position as defined below:
Cycle Burnup (MWD /MTU) Steps Withdrawn 5 8,000 2 225 to 5 231
> 8,000 to < 14,000 2 222 to $ 231 2 14,000 2 225 to 5 231 2.3 Control Rod Insertion Limits (Specification 3/4.1.3. 6) 2.3.1 The control rod banks shall be limited in physical insertion as shown in Figure 1.
2.4 Axial Flux Difference - AFD (Specification 3/4.2.1) 2.4.1 The axial flux difference (AFD) limits are provided in Figure 2.
2.5 Heat Flux Hot Channel Factor - Fg(z) (Specification 3/4.2.2)
FgRTP :
Fg(z) $
- K(z) for P > 0.5 P
pgRTP Fg (z) $
- K(z) for P s 0.5 0.5 THERMAL POWER where P = l RATED THERMAL POWER SEQUOYAH - UNIT 1 Page 3 of 12 Revision 0 u_ _ _ _ _ _ _ _ _ _ _ _ _ . ,_
+ ,
l
. -. a
-COLR FORLSEQUOYAH-UNIT 1 CYCLE 8
+
~
2 . 5 '.1 - . FgRTP, .-2,4o
' 2.5.2 K(Z).is provided in Figure.3.
- 2.5.3 Th'e W(z)- values ' required by TS SR- 4.2.2.2 are
' provided in Figures 4 through 81 These figures provide a complete set of conservative W(z)' values
~
and. provide. suf ficient information to . determine W (z)'
versus core height for all cycle burnups.
2.5.'4 All cycle burnups shall use a-2% decrease in Fg margin for compliance with:the 4.2.2.2.e
. Survoillance Requirements..
2.6 Nuclear:Enthalpy Rise Hot Channel Factor - f6H (Specification 3/4.2.3)
FAHN g,.pAHRTP (l'+ ppAH * [1 - P])
THERMAL POWER
'where P =
RATED THERMAL POWER 2.6.1 RTP = 1.62 E6H 2.6.2 PFAH = 0.3 SEQUOYAH UNIT 1 Page 4 of 12 Revision 0
COLR For Sequoyah Unit 1 Cycle 8 1 l
(.65,231) 2 3 1 (.09,231) , ,
j (FuOy Withdrawn Region). ., .
220 y(.05,2223: , <. . i ,2 2 2 >- ,-
/o BANK B . .
(0,210) * * '
200 (1.0,182) 180 --
e160 O
8 140 n- . ,
, a . o B A N. K C . .
.s 1 2 0 l
u) '.
x ' '
f g100 -- - -
m -
y (0,85) l ,
O 80 --
- -~-
t g . . .
- o. BANK D j 60 -- - - - - - --
40 --
20
' (' ** } I I i O
0 0.2 0.4 0.6 0.8 1 (Fully inserted) Fraction of Rated Thermal Power FIGURE 1 Rod Bank insertion Limits Versus Thermal Power Four Loop Operation Fully withdrawn region shall be the condition where shutdown and control banks are at a position within the interval of 1222 and 1231 steps withdrawn, inclusive, s
Fully withdrawn shall be the position as defined below, Cvelo Burnuo (mwd /MTUI Sten Withdrawn 18000 1225 to 1231
> 8000 to < 14,000 1222 to 1 ?31 1 14,000 1225 to 1231 SEQUOYAH - UNIT 1 Page 5 of 12 Revision 0
COLR For Sequoyah Unit 1 Cycle 8 120 . . . . . . . .
110 -. . .--- ;
- : (415,160) (6,10b) . . :
100 --
90 unac'ceptible- .' : -- -
Unace'eptable -
g Op:eration ; ,
Operation
! 80 -:- : :- : -- -
a,, . . -
AccepIable . . . -
- l l . Operation : : :
E 70 --
1 - - .
g . . . . . .
i
.a c 60 -
{
l- j-
[--
-j g . . . . .
y 50 - - - (-31;50) '
~
- (20,50) o 40 --
- 30 --
j . . . . . . .
20
- l. . . .
i 10 --
l .
! O 40 20 -10 0 10 20 30 40 50
, Flux Difference (delta 1) %
i FIGURE 2 i l
, 1 il Axial Flux Difference Limits As A Function Of Rated Thermal Power SEQUOYAH - UNIT 1 Page 6 of 12 Revision 0
1 COLR For Sequoyah Unit 1 Cycle 8 1.2 , , , . ,
3 ,3 -.
1 0.9 -
t, 0.8 -
+ - . :- - - :- .
o
? 0.7 o
i---
- u. . .
o 0.6 .-
e . . . .
.6 - . .
-llj g
- 5 -
l Core Height: K(Z)
E - ,
w - - - -
0.000 1.000 o .
.s.000. 1.000
- 2 0.4 --
10.800 0.940 l l l ' 12.000 0.925 0.3 --
0.2 -
l- l 0.1 --
0 0 2 4 6 8 10 12 Core Height (Feet)
FIGURE 3 K(Z) - Normalized Fq(Z) as a Function of Core Height I
l SEQUOYAH - UNIT 1 Page 7 of 12 Revision 0
COLR FOR SEQUOYAH UNIT 1 CYCLE 8
. . HEIGHT MAX (FEET) W(Z) 0.0000 1.0000
. 2:50 0.2000 1.0000 0.4000 1.0000 0.6000 1.0000 0.8000 1.0000 1.45 1.0000 1.0000 1.2000 1.0000 1.4000 1.0000 1.6000 1.0000 1.8000 1.2979 1*40 2.0000 1.2765 2.2000 1.2547 2.4000 1.2329 2.6000 1.2110 1.35 2.8000 1.1874 3.0000 1.1746 y 3.2000 1.1721 3.4000 1.1702
- - 3.6000 1.1672 5 1.30 -
^
3.8000 1.1629
.l.0000 1.1616
. 42n00 1.1613
+ 4.4000 1.1597
. ... . 4.6000 1.1574 1.25 ,~ .
. 4.8000 1.1548 f:4 .
. . 5.0000 1.1492 5.2000 1.1500 O .
5.4000 1.1636 5.6000 1.1786 h 1.20 . 5.8000 1.1924 6.0000 1.2052
- 6.2000 1.2168
- ~ ;
- 6.4000 1.2272
- 6.6000 1.2359 1.15 6.8000 1.2431 M 7.0000 1.2485 7.2000 1.2517 7.4000 1.2526 1.10 7.6000 1.2510 7.8000 1.2465 8.0000 1.2398 8.2000 1.2286 8.4000 1.2229 1.05 8.6000 1.2341 8.8000 1.2430 9.0000 1.2540 9.2000 1.2673 1.00 9.4000 1.2767 ;
O 2 4 6 8 10 12 [8 j l 10'0000 1.3010 Boteo. CORE HEIGHT (FEET) Top 10.2000 12077 10.4000 1.0000 10.6000 1.0000 Figure 4 10 8000 1 0000 11.0000 1.0000 i 11.2000 1.0000 11.4000 1.0000 SEQUOYAH UNIT 1 CYCLE 8 11.6000 1.0000 RAOC
SUMMARY
OF MAX W(Z) AT 150 MWD /MTU }20000 j 0000 1 (Top and Bottom 15% Excluded per Tech spec 4.2.2.2 G) j SEQUOYAH - UNIT 1 Page 8 of12 Revision 0
\
l COLR FOR SEQUOYAH UNIT 1 CYCLE 8 HEIGHT MAX l
. . (FEET) W(Z) ;
1 1*50 0.0000 1m 0.2000 1.0000 0.4000 1.0000 0.6000 1.0000 OE000 1.0000 1.45 1.0000 1.0000 12000 1.0000 1.4000 1.0000 1.6000 1.0000 1E000 1263 1*40 2.0000 1.2466 2.2000 12276 2.4000 1.2084 2.6000 1.1891 1.35 2.8000 1.1692
^
3.0000 1.1532 3.2000 1.1428 N
3.4000 1.1388
. 3.6000 1.1421 N 1.30 . 3.8000 1.1449
. 4.0000 1.1467 4.2000 1.1478
. .~ .. ., 4.4000 1.1481
.. 4.6000 1.1475 l'.25 . 4.8000 1.1466 fu - 5.0000 1.1433 O
- 5.2000 1.1442
- 5.4000 1.1558 5m 1.1720 M 1*20 5.8000 1.1875 6.0000 1.2015
- 62000 1.2146 6.4000 1.2263 1
- l 1 15 *"
6.6000 1.2366
. 6.8000 1.2453 CO 7.0000 1.2519 7.2000 1.2572 7.4000 1.2625 1.10 7.6000 1.2669 7.8000 1.2691 8.0000 1.2686 8.2000 1.2656 8.4000 1.2642 1.05 8.6000 1.2622 8.8000 1.2616 9.0000 1.2717 9.2000 1.2870 1.00 9.4000 1.2978 9.6000 1 3076 0 2 4 6 8 10 12 9.8000 13117 10.0000 1 3225 nottom CORE HEIGHT (FEET) Top 10.2000 1.3294 10.4000 1.0000 10.6000 1.0000 Figure 5 10.8000 1m 11.0000 1.0000 11.2000 1.0000 11.4000 1.0000 SEQUOYAH UNIT 1 CYCLE 8 11.6000 1.0000 RAOC
SUMMARY
OF MAX W(Z) AT 2000 MWD /MTU } [ $ },' $
j (Top and Bottom 15% Excluded per Tech Spec 4.2.2.2 G) l SEQUOYAH - UNIT 1 Page 9 of12 Revision 0 1
1
. . COLR FOR SEQUOYAH UNIT 1 CYCLE 8 HEIGHT MAX ;
(FEET) W(Z) l l l 1.50 0.0000 1.0000 0.2000 1.0000
- 0.4000 1.0000 0.6000 1.0000 0.8000 1.0000 1.45 1.0000 1.0000 1.2000 1.0000 1.4000 1.0000 2
1.6000 1.0000 l 1.40 1.8000 12853 2.0000 1.2674 i 2.2000 1.2492 l 2.4000 1.2307 i
2.6000 1.2119 1.35 2.8000 1.1918 m 3.0000 1.1780 tg 3.2000 1.1721 4 v 3.4000 1.1708 3.6000 1.1726 I $ 1.30 3.8000 1.1732
- 4.0000 1.1742 4.2000 1.1705 4.4000 1.1721
- ^.. .. . 4.6000 1.1725 1.25 4.8000 1.1719 N . . 5.0000 1.1703 O . 5.2000 1.1678
. . 5.4000 1.1756 5.6000 1.1868 h 1.20
- 5.8000 1.2002 6.0000 1.2125
....~ ....
- 6.2000 1.2235 i
6.4000 1.2331 1.15 6.6000 1.2410
< 6.8000 1.2471 CO 7.0000 12513 7.2000 1.2535 7.4000 12516 1.10 7.6000 1.2520 7.8000 1 2503 8.0000 1.2445 82000 1.2401 8.4000 1.2432 1.05 8.6000 12420 8.8000 1.2395 9.0000 1.2443 9.2000 1.2518 1.00 9.4000 1.2522 9.6000 1.2492 0 2 4 6 8 10 12 9.8000 1.2538 l 10.0000 1'2647 sotto. CORE HEIGHT (FEET) Top 10.2000 1.2713 10.4000 1.0000 10.6000 1.0000 Figure 6 10 M 1 "
11.0000 1.0000 11.2000 1.0000 SEQUOYAH UNIT 1 CYCLE 8l $ !' $ , RAOC
SUMMARY
OF MAX W(Z) AT 6000 MWD /MTU }2: (Top and Bottom 15% Excluded per Tech spec 4.2.2.2 G) SEQUOYAH - UNIT 1 Page 10 of 12 Revision 0 1 l
, , COLR FOR SEQUOYAH UNIT 1 CYCLE 8 (FEET) W(Z)
'1".50 Om 1m 02000 1.0000 0.4000 1.0000 0.6000 1.0000 0.8000 1.0000 1.45 1.0000 1.0000 1.2000 1.0000 1.4000 1.0000 1.6000 1.0000 1.8000 12979 1*40 2.0000 1.2810 2.2000 1.2635 2.4000 1.2458 2.6000 1.2282 1.35 2.8000 1.2101 3.0000 1.1990 '
^ '
3.2000 1.1971 N 3.4000 1.1992
- 3.6000 1.1998 5 1.30 - 3.8000 1.1994 4.0000 1.2018 4.2000 1.2063
. .- . 4.4000 1.2100
- - 4.6000 1.2120 1.25 . .
4.8000 12125 h . 5.0000 1.2119 5.2000 1.2088 O ...m 5.4000 1.2071
* "* 5m 12165 M 1*20
5.8000 1.2293 6.0000 1.2407 6.2000 1.2504 6.4000 12584 6.6000 1.2644 1.15 6.8000 1.2683 03 7.0000 1.2700 7.2000 1.2691 7.4000 1.2649 1.10 7.6000 1.2577 7.8000 1.2478 8.0000 1.2332 8.2000 1.2201 8.4000 1.2311 1.05 8.6000 1 2261 8.8000 1.2183 9.0000 1.2072 9 2000 1.2060 9.4000 1.2157 1.00 0 2 4 6 8 10 12 9$ }.2 10.0000 1 2340 notto. CORE HEIGHT (FEET) Top 10.2000 1:2404 10.4000 1.0000 10.6000 1.0000 Figure 7 10.8000 1m 11.0000 1.0000 11.2000 1.0000 11.4000 1.0000 SEQUOYAH UNIT 1 CYCLE 8 11.6000 1.0000 RAOC
SUMMARY
OF MAX W(Z) AT 10000 MWD /MTU l2.' ! (Top and Bottom 15% Excluded per Tech Spec 4.2.2.2 G)
- SEQUOYAH - UNIT I Page 11 of 12 Revision 0 l
- i. 1
,, ,, COLR FOR SEQUOYAH UNIT 1 CYCLE 8 (FEET) W(Z)
'~
l*50 Om 1m 0.2000 1.0000 0.4000 1.0000 0.6000 1.0000 0.8000 1.0000 1.45 1.0000 1.0000 1.2000 1.0000 1.4000 1.0000 1.6000 1.0000 1.8000 1.2754 1.40 2.0000 1.2602 2.2000 1.2446 2.4000 1.2290 2.6000 1.2151 1.35 2 8000 1.2062
^
- 3.0000 1.1977 3.2000 1.1951 N *
- 3.4000 1.2011 3.6000 1 2041 5 1.30 3.8000 1.2093 4.0000 1.2191 4.2000 1.2300
. 4.4000 1.2382
. , , 4.6000 1.2445 1.25 . .- 4.8000 12491 fy
. . 5.0000 1.2505 O
. 52000 12534
+ . 5.4000 1.2646 h 1.20 5.6000 1.2831
. 5.8000 12996 6.0000 1 3131 62000 13246 6.4000 1 3334 1.15 6.6000 1 3395 6.8000 1 3427 03 7.0000 1 3429 72000 13399 7.4000 13334 1.10 7.6000 1 3235 7.80 4 13100 8.0000 1.2929 8.2000 1.2721 8.4000 1.2524 1.05 8.6000 1 2336 8.8000 1.2137 9.0000 1.1950 9.2000 1.1917 1.00 9.4000 1.2079 0 2 4 6 8 10 12 $ l$ i sotto. CORE HEIGHT (FEET) Top 10.0000 1:2457 10.2000 1 2522 i
10.4000 1.0000 10.6000 1.0000 Figure 8 1080N 1m 11.0000 1.0000 11.2000 1.0000 11.4000 1.0000
, SEQUOYAH UNIT 1 CYCLE 8 11.6000 1.0000 ,
RAOC
SUMMARY
OF MAX W(Z) AT 14000 MWD /MTU }2.' (Top and Bottom 15% Excluded per Tech Spec 4.2.2.2 G) SEQUOYAH - UNIT 1 Page 12 of12 Revision 0 _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ - - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _}}