ML20083C948
| ML20083C948 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 02/03/1995 |
| From: | Hone M, Johansen B, Robinson K UNION ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML20083C945 | List: |
| References | |
| NUDOCS 9505230160 | |
| Download: ML20083C948 (17) | |
Text
{{#Wiki_filter:~ .. h Callaway Cycle 8 Rev.0 4 Callaway Cycle 8 Com Operating Limits Report (Revision 0) February,1995 , A .f* & M. J. Hone Core Design D Date: 3 3 9f VERIFIED: // ,[ N K. R. Robinson Core Design D Date: J,3 q[ APPROVED: B. J. J hansen, Manager Core Design D Date: 1)3% f Page 1 of 17 9505230160 950518 PDR ADOCK 05000493 P PDR
l c. . . Callaway . Cycle 8 Rev.O j l 1.0 CORE OPERATINO LIMITS REPORT l This Core Operating Limits Report (COLR) for Callaway Plant Cycle 8 has been prepared in accordance with the requirements of Technical Specification 6.9.1.9 . De Core Operating Limits affecting'the following Technical Specifications are included in this .
. report. .!
4 3.1.1.3 Moderator Temperature Coefficient j 3.1.3.5 Shutdown Rod Insertion Limit 3.1.3.6 Control Rod Insertion Limits I 3.2.1 Axial Flux Difference , 3.2.2 Heat Flux Hot Channel Factor 3.2.3 Nuclear Enthalpy Rise Hot Channel Factor , 3.9.1 Refueling Boron Concentration b
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- Callaway Cycle 8 -
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2.0 OPERATING LIMITS
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The cycle-specific parameter limits for the specifications listed in Section 1.0 are presented in the subsections which follow. These limits have been developed using the NRC approved - methodologies specified in Technical Specification 6.9.1.9.
'21
. Moderator Temocrature Coefficient (Specification 3.1.1.3) 4 2.1.1 ne Moderator Temperature Coefficient shall be less positive than the limits shown in Figure 1. Dese limits shall be referred to as the Beginning of Cycle Life (BOL.)
Limit. De Moderator Temperature Coefficient shall be less negative than -47.9 pcm/*F. This limit shall be referred to as the End of Cycle Life (EOL) Limit. 2.1.2 De MTC 300 ppm surveillance limit is 40.4 pcm/'F (all rods withdrawn, Rated Thermal Power condition). r. Page 3
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0 10 20 30 40 50 60 70 80 90 100 PUColi 0F RATG TERilAL P0fG i FIGURE 1 J CALLAWAY UNIT 1 CYCLE 8 MODERATOR TEMPERATURE COEFFICIENT VS. POWER LEVEL Page 4
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' Callaway Cycic 8 Rev.0 1
l 1 2.2 Shutdown Rod Insertion Limits (Specification 3.1.3.5) The shutdown rods shall be withdrawn to at least 225 steps. 2.3 . Control Rod insertion Limits (Specification 3.1.3.6) The Control Bank Insertion Limits are specified by Figure 2. i n M 6 1 4 6 l l 3 I t l 4 1 ) Page 5
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A J (58.2,8) # 0 O 10 20 30 40 50 W 70 N 00 100 RATD TIElBiAL P0fDt (Percent) i ROURE 2 l l CALLAWAY UNIT 1 CYCLE 8 ROD BANK INSERTION LIMITS VS. RATED THERMAL POWER FOUR LOOP OPERATION Page 6 i
t' 4 Callaway Cycle 8 Rev.0 2.4 Axial Flux Difference (Specification 3.2.1) 2.4.1 The Axial Flux Difference (AFD) Limits are provided in Figure 3. t. 2.4.2 The target band during Restricted AFD Operation is 13 %. The AFD limits provided ! in Figure.3 also remain applicable during Restricted AFD Operation. 2.4.3 The minimum allowable power level for Restricted AFD Operation, APL'0, is 90% of RATED THERMAL POWER. l l Page 7 !
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-50 -40 -30 -20 -10 0 10 20 30 40 50
. AXIAL FLUX OlFFDtDICE (5 DELTA-l)
FIGURE 3-CALLAWAY UNIT 1 CYCLE 8 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER FOR RAOC f Page 8 l
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s Callaway Cycle 8' ,Re'v.0 2.5 Heat Flux Hot Channel Factor - Fo(Z) (Specification 3.2.2) ,
. Fo"" ,
Fo (Z) s
- K(Z) for P > 0.5 e p ,
1 p RTP Fo(Z)s
- K(Z) for P s 0.5 4' O.5
~ THERMAL POWER where: P =
RATED THERMAL POWER 2.5.1 Fo"" = 2.50 F F 2.5.2 K(Z) is provided in Figure 4. l 2.5.3 The W(z) functions that are to be used in Technical Specifications 4.2.2.2,4.2.2.3, and 4.2.2.4 for Fo surveillance are shown in Figures 5 through 9. The Normal Operation W(z) values have been determined for several burnups up to. , 18000 MWD /MTU in Cycle 8. His permits determination of W(z) at any cycle burnup up to 18000 MWD /MTU through the use of three point interpolation. For - cycle burnups greater than 18000 MWD /MTU, use of the 18000 MWD /MTU W(z) + values without interpolation or extrapolation is conservative The W(z)so values were determined assuming Cycle 8 operates with the RAOC strategy. Also included is a ; W(z)so function that bounds the W(z)so curve for all Cycle 8 burnups. Use of the bounding W(z)so curve will be conservative for any Cycle 8 burnup; however,
- additional margin may be gained by using the burnup dependent W(z),o values. ,
Because significant margin exists between the analytically determined maximum , Fo(z)*P values and their limit, Restricted Axial Flux Difference (RAFDO) operation - ! is not expected to be required for Cycle 8. For this reason, no W(z) values are supplied for Cycle 8. ne W(z) values are provided for 73 axial points assuming the core height boundaries of 0 and 12 feet and intervals of .167 feet between the core boundaries. Table A.1 shows the burnup dependent Fo penalty factors for Cycle 8. Dese values - shall be used to increase Fo"(z) when required by Technical Specification Surveillance Requirement 4.2.2.2.e. A 2% penalty factor shall be used at all cycle burnups that are outside the range of Table A.1. Page 9 I L -- - - - . - . , - - - , - - - . . - -. .. -
.. :. - e 'l V .. l Callaway Cycle 8 Rev.O I l
l l l TABLE A.1 Fo PENALTY FACTORS AS A FUNCTION OF CYCLE BURNUP Cycle Burnup Fo"(z) Penalty Factor (%) 0 2.00 22500 2.00 Note: All cycle burnups outside the range of the above table shall use a 2% penalty factor for compliance with the 4.2.2.2.e Surveillance Requirement. Linear interpolation should be used for intermediate cycle burnups.
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i Page 10
~ . l:' Callaway Cycle 8 Rev.0 l l l 2.6 Nuclear Enthalov Rise Hot Channel Factor - Fw" l (Specification 3.2.3) Fw" s Fw"' [1 + PFa(1 P)] THERMAL POWER where: P = RATED THERMAL POWER 2.6.1 Fw"' = 1.59 2.6.2 PF, = 0.3 2.7 Et{gelina Boron Concentration (Specification 3.9.1) 2.7.1 ne refueling boron concentration to maintain K,,s 0.95 shall be 1 2000 ppm. e l l 9 Page 11 l l
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t ! 0*00 O 1 2 3 4 5 8 7 8 9 10 11 12 CORE lElGHT (FET) t FIGURE 4 CALLAWAY UNIT 1 CYCLE 8 K(z) . NORMALIZED Fo(z) AS A FUNCTION OF CORE HEIGHT l Page 12 1 i 1 1
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- 40.o00 i.0000
- 10.067 1.0000 BOTTOM TOP . 10.e33 1.0000 COM HEIGHT (FEST)
- ii.000 11.187 i.0000 1.0000
- 11.333 1.0000
- 11.500 1.0000
- 11.647 1.0000
- 11.833 1.0000
- 12.000 1.0000 Figure 5 Callaway Unit 1 Cycle 8 W(z)no at 150 MWD /MTU
' Top and bottom 15% excluded as per Tech Spec 4.2.2.2G Page 13 i
1 1
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- 11.647 1.0000
- 11.833 1.0000
- 12.000 9.0000 Figure 6 1
Callaway Unit 1 Cycle 8 W(z)no at 2000 MWD /MTU
- Top and bottom 15% excluded as per Tech Spec 4.2.2.2G Page 14
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-- 9.647 1.2499 9.833 1.2544 10.000 1.2998 10.iet t.2eSe
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- 1. m00 1.00o - - - 1 ~~ 2 3 4 5 6 7 8 9 10 ~~~ 11~ ~ ~12 e 1,0.s0.00, .mm 8 *" TOP
- 0.e33 3 . 0m0 cons unronT < rant) : ;; =
- it.333
- =
9.0000
- 11.500 1.0000
- t1.447 1.0000
- 11.033 1.0000
- 12.000 1.0000 Figure 7 Callaway Unit 1 Cycle 8 W(z)no at 10000 MWD /MTU l
- Top and bottom 15% excluded as per Tech Spec 4.2. .22G )
Page 15 i w-'--y ,--us-w 4 y -- eiw yvm-.-w w +m-/ ---------,.w,.----ww- - - - - -
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$.333 1.3001 6 "m A.A'W" 4.900 1.3111 A a' b 6.047 1.3201 1.20 , o .e33 1.327 A,n 7.000 1.3319 7.147 1.33 5 7.333 1.3347 7.500 1.3320 7.647 1.3270 7.833 1.3203 8.000 1.3148 8.187 1.3099 4.333 1.3020 1.2970 1.10 0.50,0,
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- g"8 ' 00" BOTTOM TOP *'O.833 1. 0"O CORE HEIGHT (FEET) * " o"
- 11.147 1.0000
- 1t.333 1.0000
- 11.500 1.0000
- 11.647 1.0000
- 11.033 t.0000
- 12.000 1.0000 Figure 8 Callaway Unit 1 Cycle 8 1
W(z)no at 18000 MWD /MTU
' Top and bottom 15% excluded as per Tech Spec 4.2.2.2C Page 16 l
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4.000 1.272$ 3 d6 A d" 6.167 1.2873 6.333 1.3001 S 900 1.3111 gg 6.847 1.3201 4.033 1.3271 7.000 1.3319 7.187 1.3345 7.333 1.3347 7.500 1.2325 7.447 t.3343 7.433 1.3450 0.000 1.3544 8.147 1.3479 8.333 1.3770 0.500 1.3865 1*10 l 8.447 1.3938 # 1 8.833 1.3944 i 9.000 1.4027 I 9.187 1.4115 9.333 1.4204 i 9.500 1.4372 9.447 1.4584 9.433 1.4704 j 10.000 i.ao2e i 10.187 f 5084 l 1.00 - - - -
- 10 888 1 0000 l 12 *. $0.
0 1 --2 3 4 5 6 7 8 9 10 - - - - -11 ---- 1.0000 7 i.0000 BOTTOM TOP . 50.e33 40.500 1.0000 CORE HEIGHT (FEET) * " #0
. o.ief
' 0"O i.0000
+ 11.333 1.0000
- 19.500 1.0000
- 11.647
. u. n 1.. 0000
==
- 12.000 1.0000 Figure 9 Callaway Unit 1 Cycle 8 Bounding W(z)no For Cycle 8 1
l
- Top and bottom 15% excluded as per Tech Spec 4.2.2.2C Page 17 1
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