CP-201000740, Core Operating Limits Report for Unit 1, Cycle 15, Revision 1 and Unit 2, Cycle 12, Revision 1

Core Operating Limits Report for Unit 1, Cycle 15, Revision 1 and Unit 2, Cycle 12, Revision 1

ML101460573
Person / Time
Site:	Comanche Peak
Issue date:	05/19/2010
From:	Madden F Luminant Generation Co, Luminant Power
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
CP-201000740, TXX-10077
Download: ML101460573 (51)

Text

Rafael Flores Senior Vice President

& Chief Nuclear Officer rafael.flores@Luminant.com Luminant Power P 0 Box 1002 6322 North FM 56 Glen Rose, TX 76043 Luminant T 254 897 5550 C 817 559 0403 F 254 897 6652 CP-201000740 TXX-10077 Ref:

Tech. Spec. 5.6.5 May 19, 2010 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

SUBJECT:

COMANCHE PEAK NUCLEAR POWER PLANT DOCKET NOS. 50-445 AND 50-446 CORE OPERATING LIMITS REPORT

Dear Sir or Madam:

Enclosed are the Core Operating Limits Report (COLR) for Comanche Peak Nuclear Power Plant (CPNPP)

Unit 1, Cycle 15, Revision 1 and the COLR for CPNPP Unit 2, Cycle 12, Revision 1. These reports were prepared and submitted pursuant to Technical Specification 5.6.5. The revision to these reports reflects the necessary changes for consistency with Amendment 150 of the CPNPP Technical Specifications.

This communication contains no new licensing basis commitments regarding CPNPP Units 1 and 2. Should you have any questions, please contact Mr. J. D. Seawright at (254) 897-0140.

Sincerely, Luminant Generation Company LLC Rafael Flores By:

XI/

,/

a Fred W. Madden Director, Oversight & Regulatory Affairs Enclosures c -

E. E. Collins, Region IV B. K. Singal, NRR L. Gibson, NRR Resident Inspectors, Comanche Peak KJ&f<

A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway

• Comanche Peak

• Diablo Canyon

• Palo Verde - San Onofre-South Texas Project

• Wolf Creek

ENCLOSURE 1 TO TXX-10077 Unit 1, Cycle 15, COLR (ERX-10-002, Rev. 1)

ERX-10-002, Rev.

1 CPNPP UNIT 1 CYCLE 15 CORE OPERATING LIMITS REPORT May 2010

ýs 11-ý B"-,z e"k-Prepared:

Date:

5

?-*d o/O D.

E. Brozak Principal Engineer, Westinghouse Electric Co.

Reviewed:

Reviewed:

Date:

17 /

JV S.

Srinilta Principal Engineer, Westinghouse Electric Co.

Date:

5<17ZZ201 K. N.

Rolan&

Principal Engineer, Westinghouse Electric Co.

Approved:

_o_

Date:

0

• //71.1 W. Je/BoatwriA!t, Manager Westinghouse Engineering Services -

Texas

COLR for CPNPP Unit 1 Cycle 15 RECORD OF REVISION REVISION 0 Original Issue.

REVISION 1 Changes made to address the approval of License Amendment No.

150:

1. Section 1.0 (p.

1)

"LCO 3.2.1.2" was revised to "LCO 3.2.1".

"LCO 3.2.3.2" was revised to "LCO 3.2.3".

2.

Section 2.0 (p.

2)

The list of Technical Specification 5.6.5b references was revised to state "Items 1 through 4 and 7 through 15".

3.

Section 2.8 (p.

4)

"(LCO 3.2.1.2)" was revised to "(LCO 3.2.1)".

4.

Section 2.8.5 (p.

5)

"SR 3.2.1.2.2" was revised to "SR 3.2.1.2" "Surveillance Requirement 3.2.1.2.2.a" was revised to "Surveillance Requirement 3.2.1.2.a".

5.

Section 2.10 (p.

6)

"(LCO 3.2.3.2)" was revised to "(LCO 3.2.3)".

6.

Table 1 (p.

9)

"3.2.1.2.2.a Surveillance Requirement" was revised to "3.2.1.2.a Surveillance Requirement".

ii ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 DISCLAIMER The information contained in this report was prepared for the specific requiremeiit of Luminant Generation Company LLC and may not be appropriate for use in situations other than those for which it was specifically prepared.

Luminant Generation Company LLC PROVIDES NO WARRANTY HEREUNDER, EXPRESS OR

IMPLIED, OR STATUTORY, OF ANY KIND OR NATURE WHATSOEVER, REGARDING THIS REPORT OR ITS USE, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES ON MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

By making this report available, Luminant Generation Company LLC does not authorize its use by others, and any such use is forbidden except with the prior, written approval of Luminant Generation Company LLC. Any such written approval shall itself be deemed to incorporate the disclaimers of liability and disclaimers of warranties provided herein.

In no event shall Luminant Generation Company LLC have any liability for any incidental or consequential damages of any type in connection with the use, authorized or unauthorized, of this report or of the information in it.

iii ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 TABLE OF CONTENTS RECORD OF REVISION DISCLAIMER TABLE OF CONTENTS LIST OF TABLES....................

LIST OF FIGURES SECTION 1.0 CORE OPERATING LIMITS REPORT 2.0 OPERATING LIMITS 2.1 SAFETY LIMITS 2.2 SHUTDOWN MARGIN ii iii iv vi 2.3 2.4 2.5 2.6 2.7 2.8 MODERATOR TEMPERATURE COEFFICIENT ROD GROUP ALIGNMENT LIMITS SHUTDOWN BANK INSERTION LIMITS CONTROL BANK INSERTION LIMITS PHYSICS TESTS EXCEPTIONS -

MODE 2 HEAT FLUX HOT CHANNEL FACTOR PAGE 1

2 2

2 2

3 3

4 4

4 6

6 6

2.9 NUCLEAR ENTHALPY RISE HOT CHANNEL FACTOR 2.10 AXIAL FLUX DIFFERENCE 2.11 REACTOR TRIP SYSTEM INSTRUMENTATION..........

2.12 RCS PRESSURE, TEMPERATURE, AND FLOW DEPARTURE NUCLEATE BOILING LIMITS 2.13 BORON CONCENTRATION

3.0 REFERENCES

FROM 7

8 8

iv ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 LIST OF TABLES TABLE PAGE 1

FQ(Z)

MARGIN DECREASES IN EXCESS OF 2% PER 31 EFPD 9

V ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 LIST OF FIGURES FIGURE PAGE 1

REACTOR CORE SAFETY LIMITS 10 2

ROD BANK INSERTION LIMITS VERSUS THERMAL POWER 11 3

K(Z)

NORMALIZED FQ(Z)

AS A FUNCTION OF CORE HEIGHT.

12 4

W(Z)

AS A FUNCTION OF CORE HEIGHT (150 MWD/MTU) 13 5

W(Z)

AS A FUNCTION OF CORE HEIGHT (2,000 MWD/MTU) 14 6

W(Z)

AS A FUNCTION OF CORE HEIGHT (8,000 MWD/MTU) 15 7

W(Z)

AS A FUNCTION OF CORE HEIGHT (16,000 MWD/MTU) 16 8

W(Z)

AS A FUNCTION OF CORE HEIGHT (20,000 MWD/MTU))

17 9

AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER.

18 vi ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 1.0 CORE OPERATING LIMITS REPORT This Core Operating Limits Report (COLR) for CPNPP UNIT 1 CYCLE 15 has been prepared in accordance with the requirements of Technical Specification 5.6.5.

The Technical Specifications affected by this report are listed below:

SL 2.1 LCO 3.1.1 LCO 3.1.3 LCO 3.1.4 LCO 3.1.5 LCO 3.1.6 LCO 3.1.8 LCO 3.2.1 LCO 3.2.2 LCO 3.2.3 LCO 3.3.1 LCO 3.4.1 LCO 3.9.1 SAFETY LIMITS SHUTDOWN MARGIN MODERATOR TEMPERATURE COEFFICIENT ROD GROUP ALIGNMENT LIMITS SHUTDOWN BANK INSERTION LIMITS CONTROL BANK INSERTION LIMITS PHYSICS TESTS EXCEPTIONS MODE 2 HEAT FLUX HOT CHANNEL FACTOR NUCLEAR ENTHALPY RISE HOT CHANNEL FACTOR AXIAL FLUX DIFFERENCE REACTOR TRIP SYSTEM INSTRUMENTATION RCS PRESSURE, TEMPERATURE, AND FLOW DEPARTURE FROM NUCLEATE BOILING LIMITS BORON CONCENTRATION I

ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 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 Technical Specification 5.6.5b, Items 1 through 4 and 7 through 15.

These limits have been determined such that all applicable limits of the safety analysis are met.

2.1 SAFETY LIMITS (SL 2.1) 2.1.1 In MODES 1 and 2, the combination of thermal power, reactor coolant system highest loop average temperature, and pressurizer pressure shall not exceed the safety limits specified in Figure 1.

2.2 SHUTDOWN MARGIN (SDM)

(LCO 3.1.1) 2.2.1 The SDM shall be greater than or equal to 1.3% Ak/k in MODE 2 with K.ff < 1.0, and in MODES 3, 4, and 5.

2.3 MODERATOR TEMPERATURE COEFFICIENT (MTC)

(LCO 3.1.3) 2.3.1 The MTC upper and lower limits, respectively, are:

The BOL/ARO/HZP-MTC shall be less positive than +5 pcm/'F.

The EOL/ARO/RTP-MTC shall be less negative than -40 pcm/°F.

2 ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 2.3.2 SR 3.1.3.2 The MTC surveillance limit is:

The 300 ppm/ARO/RTP-MTC shall be less negative than or equal to -31 pcm/"F.

The 60 ppm/ARO/RTP-MTC shall be less negative than or equal to -38 pcm/ F.

where:

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 2.4 ROD GROUP ALIGNMENT LIMITS (LCO 3.1.4) 2.4.1 The SDM shall be greater than or equal to 1.3% Ak/k in MODES 1 and 2.

2.5 SHUTDOWN BANK INSERTION LIMITS (LCO 3.1.5) 2.5.1 The shutdown rods shall be fully withdrawn.

Fully withdrawn shall be the condition where shutdown rods are at a position within the interval of 218 and 231 steps withdrawn, inclusive.

3 ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 2.6 CONTROL BANK INSERTION LIMITS (LCO 3.1.6) 2.6.1 The control banks shall be limited in physical insertion as shown in Figure 2.

2.6.2 The control banks shall always be withdrawn and inserted in the prescribed sequence.

For withdrawal, the sequence is control bank A, control bank B, control bank C, and control bank D.

The insertion sequence is the reverse of the withdrawal sequence.

2.6.3 A 115 step Tip-to-Tip relationship between each sequential control bank shall be maintained.

2.7 PHYSICS TESTS EXCEPTIONS -

MODE 2 (LCO 3.1.8) 2.7.1 The SDM shall be greater than or equal to 1.3% Ak/k in MODE 2 during PHYSICS TESTS.

2.8 HEAT FLUX HOT CHANNEL FACTOR (F. (Z)

(LCO 3.2.1) 2.8.1 FQ(Z)

F RTP FQ

[K(Z)] for P > 0.5 P

RTP FQ FQ(Z)

0.5 where

P =

RATI

[K(Z)] for P S 0.5 LHERMAL POWER ED THERMAL POWER 4

ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 RTP 2.8.2 FQ

= 2.50 2.8.3 K(Z) is provided in Figure 3.

2.8.4 Elevation and burnup dependent W(Z) values are provided in Figures 4, 5,

6, 7 and 8.

For W(Z) data at a desired burnup not listed in the figures, but less than the maximum listed burnup, values at 3 or more burnup steps should be used to interpolate the W(Z) data to the desired burnup with a polynomial type fit that uses the nearest three burnup steps. For W(Z) data at a desired burnup outside of the listed burnup steps, a linear extrapolation of the W(Z) data for the nearest two burnup steps can be used.

2.8.5 SR 3.2.1.2 If the two most recent FQ(Z) evaluations show an increase in the expression maximum over Z

[ FQC(Z)

/ K(Z)

],

the burnup dependent values in Table 1 shall be used instead of a constant 2% to increase F (Z) per Surveillance Requirement 3.2.1.2.a. A constant factor of 2% shall be used for all cycle burnups that are outside the range of Table 1.

5 ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 2.9 NUCLEAR ENTHALPY RISE HOT CHANNEL FACTOR (F"AH_

(LCO 3.2.2) 2.9.1 FNAH

<5 FRTPAH

[1 + PFAH (I-P)]

where:

P =

THERMAL POWER RATED THERMAL POWER 2.9.2 FRTPAH =

1.60 2.9.3 PFAH

=

0.3 2.10 AXIAL FLUX DIFFERENCE (AFD)

(LCO 3.2.3) 2.10.1 The AFD Acceptable Operation Limits are provided in Figure 9.

2.11 REACTOR TRIP SYSTEM (RTS)

INSTRUMENTATION (LCO 3.3.1) 2.11.1 The numerical values pertaining to the Overtemperature N-16 reactor trip setpoint are listed below; K,

= 1.15 K2

= 0.0139 /0F K3

= 0.00071 /psig Tc°

= indicated loop specific T, at Rated Thermal Power,

• F P'

> 2235 psig T,

a_ 10 sec 52 3 sec f 1(Aq) = -2.78

{(qt-qb) + 18%}

when (q,-qb) 5 -18% RTP

= 0%

when -18% RTP < (q,-qb)

< +10.0% RTP

= 2.34

{(qt-qb) 10.0%}

when (qt-qb) 2! +10.0% RTP 6

ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 2.12 RCS PRESSURE, TEMPERATURE, AND FLOW DEPARTURE FROM NUCLEATE BOILING (DNB)

LIMITS (LCO 3.4.1) 2.12.1 RCS DNB parameters for pressurizer pressure, RCS average temperature, and RCS total flow rate shall be within the surveillance limits specified below:

2.12.2 SR 3.4.1.1 Pressurizer pressure 2

2220 psig (4 channels) 2 2222 psig (3 channels)

The pressurizer pressure limits correspond to the analytical limit of 2205 psig used in the safety analysis with allowance for measurement uncertainty.

These uncertainties are based on the use of control board indications and the number of available channels.

2.12.3 SR 3.4.1.2 RCS average temperature 5 588 °F (4 channels) 5 588 °F (3 channels)

The RCS average temperature limits correspond to the analytical limit of 591.9 'F which is bounded by that used in the safety analysis with allowance for measurement uncertainty.

These uncertainties are based on the use of control board indications and the number of available channels.

7 ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 2.12.4 SR 3.4.1.3 The RCS total flow rate shall be

• 403,700 gpm.

2.12.5 SR 3.4.1.4 The RCS total flow rate based on precision heat balance shall be 2 403,700 gpm.

The required RCS flow, based on an elbow tap differential pressure instrument measurement prior to MODE 1 after the refueling outage, shall be greater than 327,000 gpm.

2.13 BORON CONCENTRATION (LCO 3.9.1) 2.13.1 The required refueling boron concentration is 2:1842 ppm.

3.0 REFERENCES

Technical Specification 5.6.5.

8 ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 Table 1 FQ (Z)

MARGIN DECREASES IN EXCESS OF 2% PER 31 EFPD Cycle Maximum Decrease Burnup In FQ (Z)

MARGIN (MWD/MTU)

(Percent) 4448 2.00 4663 2.05 4877 2.01 5092 2.00 5307 2.00 5522 2.01 5737 2.08 5952 2.17 6167 2.26 6382 2.25 6597 2.08 6811 2.00 7026 2.19 7241 2.51 7456 2.25 7671 2.00 Note: All Cycle burnups outside the range of the table shall use a constant 2% decrease in F,(Z) margin for compliance with the 3.2.1.2.a Surveillance Requirements.

Linear interpolation is acceptable to determine the F Q(Z) margin decrease for cycle burnups which fall between the specified burnups.

9 ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 Figure 1 Reactor Core Safety Limits 680 2445 psig 660-2235psigUnacceptable LL 640 1985 psig 0

c 1845 psig 600 50 50)-

60 20 40 60 80 100 120 140 Percent of Rated Thermal Power 10 ERX-10-002, Rev.

1

240 220 200

"* 180

'0 160 4J

-rH

• 140 120 z0 H

• n 100 04 80 m

o 60 COLR for CPNPP Unit 1 Cycle 15 FIGURE 2 ROD BANK INSERTION LIMITS VERSUS THERMAL POWER (25.3,21 8).,28 BANK B

-(0,164)

BAN B3ANK D (0,49-H -

7K 11

-414-H 40 20 0

0 10 20 30 40 50 60 70 PERCENT OF RATED THERMAL POWER 80 90 100 NOTES:

1.

Fully withdrawn shall be the condition where control rods are at a position within the interval of 218 and 231 steps withdrawn, inclusive.

2.

Control Bank A shall be fully withdrawn.

11 ERX-10-002, Rev.

0

COLR for CPNPP Unit 1 Cycle 15 FIGURE 3 K(Z)

NORMALIZED FQ(Z)

AS A FUNCTION OF CORE HEIGHT 1 1

.1I m

A d 1

I W

H I I

(0.oo1.0)

I (6.011.0) I 1.0 0.9 0 9 I(12.00

.9 9 5) 0.8 o0.7 rk, 0.6 O 0.5 0.4 0.3 0.2 0.1 0.0 0

1 2

3 4

5 7

8 9

10 11, 12 TOP BOTTOM CORE HEIGHT (FEET)

Axial Node 61 60 59 58 57 56 55 54 K(Z)

0. 9250

0. 9275 0.9300 0.9325

0. 9350

0. 9375

0. 9400

0. 9425 Axial Node 53 52 51 50 49 48 47 46 K(Z) 0.9450 0.9475 0*9500 0.9525 0.9550 0.9575 0.9600 0.9625 Axial Node 45 44 43 42 41 40 39 38 K(Z) 0.9650 0.9675 0.9700 0.9725 0.9750 0.9775 0.9800 0.9825 Axial Node 37 36 35 34 33 32 1 -

31 K (Z) 0.9850 0.9875 0.9900

0. 9925 0.9950 0.9975 1.0000 Core Height (ft)

= (Node -

1)

• 0.2 12 ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 FIGURE 4 W(Z)

AS A FUNCTION OF CORE HEIGHT (150 MWD/MTU) 1.650 1.600 1.550 1.500 1.450 N 1.400 1.350 1.300 1.250 1.200 1.150 1.100 1.050 1.000 I

I

[

i 0

1 2

3 4

5 6

7 8

9 10 11 12 BOTTOM Axial Node W (Z) 58 -

61 57 1.3730 56 1.3645 55 1.3557 54 1.3393 53 1.3106.

52 1.2833 51 1.2616 50 1.2418 49 1.2210 48 1.1972 47 1.1713 46 1.1523 45 1.1384 CORE HEIGHT (FEET)

Axial Node 44 43 42 41 40 39 38 37 36 35 34 33 32 31 w(Z) 1.1374 1.1466 1.1529 1.1577 1.1610 1.1626 1.1626 1.1615 1.1608 1.1587 1.1550 1.1517 1.1503 1.1493 Axial Node 30 29 28 27 26 25 24 23 22 21 20 19 18 17 w(Z) 1.1489 1.1490 1.1525 1.1628 1.1727 1.1811 1.1889 1.1957 1.2017 1.2070 1.2113 1.2156 1.2234

1. 2383 Axial Node 16 15 14 13 12 11 10 9

8 7

6 5

1 -

4 TOP W (Z) 1.2576 1.2768 1.2983 1.3268 1.3546 1.3814 1 4072 1.4312 1.4532 1.4729 1.4893 1.5009 Core Height (ft)

= (Node -

1)

• 0.2 13 ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 FIGURE 5 W(Z)

AS A FUNCTION OF CORE HEIGHT (2,000 MWD/MTU) 1.650 1.600 1.550 1.500 1.450 1.400 1.350 1.300 1.250 1.200 1.150 1.100 1.050 1.000

=Eý- 4H i i l

I m I f

0

1.

2 3

4 5

6 7

8 9

10 11 12 BOTTOM Axial Node W(Z) 58 -

61 57 1.4296 56 1.4092 55 1.3808 54 1.3514 53 1.3256 52 1.2965 51 1.2639 50 1.2314 49 1.2011 48 1.1713 47 1.1439 46 1.1332 45 1.1294 CORE HEIGHT (FEET)

Axial Node 44 43 42 41 40 39 38 37 36 35 34 33 32 31 w(Z) 1.1291 1.1317

1. 1328 1.1370 1.1404 1.1420

1. 1424 1.1425 1.1423 1.1401 1.1377 1.1370 1.1363 1.1363 Axial Node 30 29 28 27 26 25 24 23 22 21 20 19 18 17 w(Z) 1.1384 1.1469 1.1617 1.1745 1.1862 1.1970

1. 2067

1. 2154

1. 2237

1. 2315

1. 2381

1. 2451

1. 2553 1.2679 Axial Node 16 15 14 13 12 11 10 9

8 7

6 5

1 -

4 TOP w(Z) 1.2856 1.3110 1.3412 1.3705 1.3993 1.4282 1.4565 1.4833 1.5079 1.5301 1.5490 1.5630

-1)

• 0.2 Core Height (ft)

= (Node 14 1ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 FIGURE 6 W(Z)

AS A FUNCTION OF CORE HEIGHT

" (8,000 MWD/MTU) 1.650 1.600 1.550 1.500 1.450 N 1.400 1.350 1.300 1.250 1.200 1.150 1.100 1.050 1.000 77

-'---4--

EErEjEi--Eýý 0

1 2

3 4

5 6

7 8

9 10 11 12 BOTTOM Axial Node W(Z) 58 -

61 57 1.4554 56 1.4356 55 1.4192 54 1.4029 53 1.3842 52 1.3643 51 1.3415 50 1.3168 49 1.2917 48 1.2654 47 1.2440 46 1.2492 45 1.2550 CORE HEIGHT (FEET)

Axial Node 44 43 42 41 40 39 38 37 36 35 34 33 32 31 w(Z)

1. 2550 1.2538 1.2464 1.2366 1.2242 1.2120 1.2006 1.1871 1.1805 1.1741 1.1642 1.1525 1.1389 1.1281 Axial Node 30 29 28 27 26 25 24 23 22 21 20 19 18 17 w(Z) 1.1222 1.1221 1.1267

1. 1326 1.1376 1.1420 1.1465 1.1505 1.1537 1.1578 1.1631 1.1683 1.1730 1.1788 Axial Node 16 15 14 13 12 11 10 9

8 7

6 5

1 -

4 TOP w(Z)

1. 1895 1.2066 1.2284 1.2513 1.2742 1.2967

1. 3183 1.3386 1.3573 1.3740 1.3881 1.3979 Core Height (ft)

= (Node -

1)

• 0.2 15 ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 1.650 1.600 1.550 1.500 1.450 N, 1.400 1.350 1.300 1.250 1.200 1.150 1.100 1.050 1.000 FIGURE 7 W(Z)

AS A FUNCTION OF CORE HEIGHT (16,000 MWD/MTU) 04 81 1

2 Eý

ý lf 4 I EýEýE 0 1 2

3 4

5 6

7 8

9 10 11 12 BOTTOM CORE HEIGHT (FEET)

Axial Node 58 -

61 57 56 55 54 53 52 51 50 49 48 47 46 45 w(Z) 1.3536 1.3629 1.3757 1.3769 1.3618 1.3441 1.3260 1.3060 1.2857 1.2636 1.2408 1.2325 1.2216 Axial Node 44 43 42 41 40 39 38 37 36 35 34 33 32 31 W(Z) 1.2157 1.2177 1.2232 1.2325 1.2405 1.2453 1.2477 1.2475 1.2446 1.2393 1.2313 1.2213 1.2108 1.1991 Axial Node 30 29 28 27 26 25 24 23 22 21 20 19 18 17 w(Z) 1.1881 1.1849 1.1877 1.1898 1.1900 1.1886 1.1856 1.1812 1.1755 1.1690 1.1613 1.1551 1.1522 1.1562 Axial Node 16 15 14 13 12 11 10 9

8 7

6 5

1 -

4 TOP w(Z) 1.1645 1.1749 1.1865 1.1992 1.2119 1.2243 1.2364 1.2478 1.2586 1.2685 1.2766 1.2813 Core Height (ft)

= (Node -

1)

• 0.2 16 ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 FIGURE 8 W(Z)

AS A FUNCTION OF CORE HEIGHT (20,000 MWD/MTU) 1.650 1.600 1.550 1.500 1.450 N 1.400 1.350 1.300 1.250 1.200 1.150 1.100 1.050 1.000

-;MýE I

i i

0 1

2 3

4 5

6 7

8 9

10 11 12 BOTTOM Axial Node W(Z) 58 -

61 57 1.3657 56 1.3655 55 1.3574 54 1.3402 53 1.3192 52 1.2999 51 1.2819 50 1.2651 49 1.2455 48 1.2291 47 1.2252 46 1.2212 45 1.2200 CORE HEIGHT (FEET)

Axial Node 44 43 42 41 40 39 38 37 36 35 34 33 32 31 w(Z) 1.2221 1.2300

1. 2396 1.2481

1. 2568 1.2641 1.2689 1.2733 1J2743 1.2721 1.2668 1.2586 1.2476 1.2332 Axial Node 30 29 28 27 26 25 24 23 22 21 20 19 18 17 w(Z) 1.2209 1.2163 1.2165 1.2195 1.2207 1.2198 1.2169 1.2123 1.2060 1.1983 1.1895 1.1797 1.1696 1.1632 Axial Node 16 15 14 13 12 11 10 9

8 7

6 5

1 -

4 TOP w(Z) 1.1645 1.1750 1.1904

1. 2049

1. 2192

1. 2333

1. 2469

1. 2598

1. 2720

1. 2833

1. 2927 1.2985 Core Height (ft)

=

(Node -

1)

• 0.2 17 ERX-10-002, Rev.

1

COLR for CPNPP Unit 1 Cycle 15 FIGURE 9 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER 100 90 80 70 0

0 60 50 40 30 20 10 0

(1,15

00)

(10,100) 1 I

UNACCEPTABLE UNACCEPTABLE OPERATION OPERATION ACCEPTABLE

-- i-LiOPERATION I]

I i (30,50)------------(30,50)

-~----------TI=

-40

-30

-20

-10 0

10 AXIAL FLUX DIFFERENCE

(%)

20 30 40 is ERX-10-002, Rev.

1

ENCLOSURE 2 TO TXX-10077 Unit 2, Cycle 12, COLR (ERX-09-001, Rev. 1)

ERX-09-001, Rev.

1 CPNPP UNIT 2 CYCLE 12 CORE OPERATING LIMITS REPORT May 2010 Prepared:

Reviewed:

Reviewed:

Approved:

Date: */~~2i D.

E.

Brozak Principal Engineer, Westinghouse Electric Co.

Date:

17 /

Zj-dI S.

Srinilta Principal Engineer, Westinghouse Electric Co.

Date:

/0 N. Rol kd

.Principal Engineer, Westinghouse Electric Co.

Date:

W.esig Boatuse Manager Westinghouse Engineering Services -Texas

COLR for CPNPP Unit 2 Cycle 12 RECORD OF REVISION REVISION 0 Original Issue.

REVISION 1 Changes made to address the approval of License Amendment No.

150:

1. Table of Contents (p. iii)

Page number for "Section 2.9" was revised to 6.

2.'

Section 1.0 (p.

1)

"LCO 3.2.1.2" was revised to "LCO 3.2.1".

"LCO 3.2.3.2" was revised to "LCO 3.2.3".

3.

Section 2.0 (p.

2)

The list of Technical Specification 5.6.5b references was revised to state "Items 1 through 4 and 7 through 15".

4.

Section 2.3 (p.

3)

End of Section 2.3 was reformatted to be consistent with Unit 1 Cycle 15 COLR.

5.

Section 2.8 (p.

4)

"(LCO 3.2.1,.2)" was revised to "(LCO 3.2.1)".

6.

Section 2.8.4 (p.

5)

Paragraph contents were replaced with Unit 1 Cycle 15 COLR wording for consistency.

7.

Section 2.8.5 (p.

5)

"SR 3.2.1.2.2" was revised to "SR 3.2.1.2".

"Surveillance Requirement 3.2.1.2.2.a" was revised to "Surveillance'Requirement 3.2.1,.2.a".

8.

Section 2.9 (p.

6)

Section was moved from page 5 to page 6.

The phrase "for all Fuel Assembly Regions" was deleted from Section 2.9.2.

9.

Section 2.10 (p.

6)

"(LCO 3.2.3.2)" was revised to "(LCO 3.2.3)".

10. Section 2.11.1 (p. 6)

ITT was revised to "IT,".

"T* 2was revised' to "T,".

11. Table 1 (p.

9)

"3.2.1.2.2.a Surveillance Requirement" was revised to "3.2.1.2.a Surveillance Requirement".

ii ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 DISCLAIMER The information contained in this report was prepared for the specific requirement of Luminant Generation Company LLC and may not be appropriate for use in situations other than those for which it was specifically prepared.

Luminant Generation Company LLC PROVIDES NO WARRANTY HEREUNDER, EXPRESS OR

IMPLIED, OR STATUTORY, OF ANY KIND OR NATURE WHATSOEVER, REGARDING THIS REPORT OR ITS USE, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES ON MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

By making this report available, Luminant Generation Company LLC does not authorize its use by others, and any such use is forbidden except with the prior written approval of Luminant Generation Company LLC. Any such written approval shall itself be deemed to incorporate the disclaimers of liability and disclaimers of warranties provided herein.

In no event shall Luminant Generation Company LLC have any liability for any incidental or consequential damages of any type in connection with the use, authorized or unauthorized, of this report or of the information in it.

iii ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 TABLE OF CONTENTS RECORD OF REVISION ii DISCLAIMER......................................................

iii TABLE OF CONTENTS iv LIST OF TABLES v

LIST OF FIGURES vi SECTION PAGE 1.0 CORE OPERATING LIMITS REPORT 1

2.0 OPERATING LIMITS 2

2.1 SAFETY LIMITS 2

2.2 SHUTDOWN MARGIN 2

2.3 MODERATOR TEMPERATURE COEFFICIENT 2

2.4 ROD GROUP ALIGNMENT LIMITS 3

2.5 SHUTDOWN BANK INSERTION LIMITS 3

2.6 CONTROL BANK INSERTION LIMITS 4

2.7 PHYSICS TESTS EXCEPTIONS MODE 2....................

4 2.8 HEAT FLUX HOT CHANNEL FACTOR 4

2.9 NUCLEAR ENTHALPY RISE HOT CHANNEL FACTOR 6

2.10 AXIAL FLUX DIFFERENCE 6

2.11 REACTOR TRIP SYSTEM INSTRUMENTATION 6

2.12 RCS PRESSURE, TEMPERATURE, AND FLOW DEPARTURE FROM NUCLEATE BOILING LIMITS 7

2.13 BORON CONCENTRATION 8

3.0 REFERENCES

8 iv ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 LIST OF TABLES TABLE PAGE 1

FQ(Z)

MARGIN DECREASES IN EXCESS OF 2% PER 31 EFPD 9

V ERX-09-001, Rev.

I

COLR for CPNPP Unit 2 Cycle 12 LIST OF FIGURES FIGURE PAGE 1

REACTOR CORE SAFETY LIMITS 10 2

ROD BANK INSERTION LIMITS VERSUS THERMAL POWER............

11 3

K(Z)

NORMALIZED FQ(Z)

AS A FUNCTION OF CORE HEIGHT 12 4

W(Z)

AS A FUNCTION OF CORE HEIGHT (150 MWD/MTU) 13 5

W(Z)

AS A FUNCTION OF CORE HEIGHT (4,000 MWD/MTU) 14 6

W(Z)

AS A FUNCTION OF CORE HEIGHT (7,000 MWD/MTU) 15 7

W(Z)

AS A FUNCTION OF CORE HEIGHT -

(11,000 MWD/MTU) 16 8

W(Z)

AS A FUNCTION OF CORE HEIGHT -

(20,000 MWD/MTU) 17 9

AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER 18 vi ERX-09-001, Rev.

I

COLR for CPNPP Unit 2 Cycle 12 1.0 CORE OPERATING LIMITS REPORT This Core Operating Limits Report (COLR) for CPNPP UNIT 2 CYCLE 12 has been prepared in accordance with the requirements of Technical Specification 5.6.5.

The Technical Specifications affected by this report are listed below:

SL 2.1 LCO 3.1.1 LCO 3.1.3 LCO 3.1.4 LCO 3.1.5 LCO 3.1.6 LCO 3.1.8 LCO 3.2.1 LCO 3.2.2 LCO 3.2.3 LCO 3.3.1 LCO 3.4.1 LCO 3.9.1 SAFETY LIMITS SHUTDOWN MARGIN MODERATOR TEMPERATURE COEFFICIENT ROD GROUP ALIGNMENT LIMITS SHUTDOWN BANK INSERTION LIMITS CONTROL BANK INSERTION LIMITS PHYSICS TESTS EXCEPTIONS -

MODE 2 HEAT FLUX HOT CHANNEL FACTOR NUCLEAR ENTHALPY RISE HOT CHANNEL FACTOR AXIAL FLUX DIFFERENCE REACTOR TRIP SYSTEM INSTRUMENTATION RCS PRESSURE, TEMPERATURE, AND-FLOW DEPARTURE FROM NUCLEATE BOILING LIMITS BORON CONCENTRATION 1

ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 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 Technical Specification 5.6.5b, Items 1 through 4 and 7 through 15.

These limits have been determined such that all applicable limits of the safety analysis are met.

2.1 SAFETY LIMITS (SL 2.1) 2.1.1 In MODES 1 and 2, the combination of thermal power, reactor coolant system highest loop average temperature, and pressurizer pressure shall not exceed the safety limits specified in Figure 1.

2.2 SHUTDOWN MARGIN (SDM)

(LCO 3.1.1) 2.2.1 The SDM shall be greater than or equal to 1.3% Ak/k in MODE 2 with Kef, < 1.0, and in MODES 3, 4,

and 5.

2.3 MODERATOR TEMPERATURE COEFFICIENT (MTC)

(LCO 3.1.3) 2.3.1 The MTC upper and lower limits, respectively, are:

The BOL/ARO/HZP-MTC shall be less positive than +5 pcm/'F.

The EOL/ARO/RTP-MTC shall be less negative than -40 pcm/°F.

2 ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 2.3.2 SR 3.1.3.2 The MTC surveillance limit is:

The 300 ppm/ARO/RTP-MTC shall be less negative than or equal to -31 pcm/°F.

The 60 ppm/ARO/RTP-MTC shall be less negative than or equal to -38 pcm/°F.

where:

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 2.4 ROD GROUP ALIGNMENT LIMITS (LCO 3.1.4) 2.4.1 The SDM shall be greater than or equal to 1.3% Ak/k in MODES 1 and 2.

2.5 SHUTDOWN BANK INSERTION LIMITS (LCO 3.1.5) 2.5.1 The shutdown rods shall be fully withdrawn.

Fully withdrawn shall be the condition where shutdown rods are at a position within the interval of 218 and 231 steps withdrawn, inclusive.

3 ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 2.6 CONTROL BANK INSERTION LIMITS (LCO 3.1.6) 2.6.1 The control banks shall be limited in physical insertion as shown in Figure 2.

2.6.2 The control banks shall always be withdrawn and inserted in the prescribed sequence.

For withdrawal, the sequence is control bank A, control bank B, control bank C, and control bank D.

The insertion sequence is the reverse of the withdrawal sequence.

2.6.3 A 115 step Tip-to-Tip relationship between each sequential control bank'shall be maintained.

2.7 PHYSICS TESTS EXCEPTIONS MODE 2 (LCO 3.1.8).

2.7.1 The SDM shall be greater than or equal to 1.3% Ak/k in MODE 2 during PHYSICS TESTS.

2.8 HEAT FLUX HOT CHANNEL FACTOR (F, (Z)

(LCO 3.2.1)

RTP IFQ 2.8.1 FQ(Z),

-5

[K(Z)] for P > 0.5 P

FRTP FQ F Q(Z)

[K(Z)] for P

-< 0.5

0.5 where

.P =

THERMAL POWER RATED THERMAL POWER 4

ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 RTP 2.8.2 FQ

= 2.50 2.8.3 K(Z) is provided in Figure 3.

2.8.4 Elevation and burnup dependent W(Z) values are provided in Figures 4, 5,

6, 7 and 8.

For W(Z) data at a desired burnup not listed in the figures, but less than the maximum listed burnup, values at 3 or more burnup steps should be used to interpolate the W(Z) data to the desired burnup with a polynomial type fit that uses the nearest three burnup steps. For W(Z) data at a desired burnup outside of the listed burnup steps, a linear extrapolation of the W(Z) data for the nearest two burnup steps can be used.

2.8.5 SR 3.2.1.2 If the two most recent FQ(Z) evaluations show an increase in the expression maximum over Z

[ F c(Z) / K(Z) ],

the burnup dependent values in Table 1 shall be used instead of a constant 2% to increase FQW(Z) per Surveillance Requirement 3.2.1.2.a. A constant factor of 2% shall be used for all cycle burnups that are outside the range of Table 1.

5 ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 2.9 NUCLEAR ENTHALPY RISE HOT CHANNEL FACTOR (FK^H)

(LCO 3.2.2) 2.9.1 FN

-< FRTPAH

[1 + PFAH (l-P)]

where:

P =

THERMAL POWER RATED THERMAL POWER 2.9.2 FR TPAH =

1.60 2.9.3 PFAH =

0.3 2.10 AXIAL FLUX DIFFERENCE (AFD)

(LCO 3.2.3) 2.10.1 The AFD Acceptable Operation Limits are provided in Figure 9.

2. 11 REACTOR TRIP SYSTEM (RTS)

INSTRUMENTATION (LCO 3.3.1) 2.11.1 The numerical values pertaining to the Overtemperature N-16 reactor trip setpoint are listed below; K,

= 1.15 K2

= 0.0139 /'F K3

= 0.00071 /psig TC 0

= indicated loop specific T, at Rated Thermal Power,

• F P'

_ 2235 psig T,

10 sec 5 3 sec f 1(Aq): = -2.78 *

(qt-qb)

+ 18%}

when (q,-q,) _5 -18% RTP

= 0%

when -18% RTP < (qt-qb) < +10.0% RTP

= 2.34

{(qt-qb) 10.0%)

when (q,-qb) 2 +10.0% RTP 6

ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 2.12 RCS PRESSURE, TEMPERATURE, AND FLOW DEPARTURE FROM NUCLEATE BOILING (DNB)

LIMITS (LCO 3.4.1) 2.12.1 RCS DNB parameters for pressurizer pressure, RCS average temperature,, and RCS total flow rate shall be within the surveillance limits specified below:

2.12.2 SR 3.4.1.1 Pressurizer pressure 2

2220 psig (4 channels) 2 2222 psig (3 channels)

The pressurizer pressure limits correspond to the analytical limit of 2205 psig used in the safety analysis with allowance for measurement uncertainty.

These uncertainties are based on the use of control board indications and the number of available channels.

2.12.3 SR 3.4.1.2 RCS average temperature S

592 °F (4 channels) 5 591 'F (3 channels)

The RCS average temperature limits correspond to the analytical limit of 595.2 'F which is bounded by that used in the safety analysis with allowance for measurement uncertainty.

These uncertainties are based on the use of control board indications and the number of available channels.

7 ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 2.12.4 SR 3.4.1.3 The RCS total flow rate shall be > 408,000 gpm.

2.12.5 SR 3.4.1.4 The RCS total flow rate based on precision heat balance shall be ý 408,000 gpm.

The required RCS flow, based on an elbow tap differential pressure instrument measurement prior to MODE 1 after the refueling outage, shall be greater than 327,000 gpm.

2.13 BORON CONCENTRATION (LCO 3.9.1) 2.13.1 The required refueling boron concentration is 2:1881 ppm.

3.0 REFERENCES

Technical Specification 5.6.5.

8 ERX-09-001.

Rev.

1

COLR for CPNPP Unit 2 Cycle 12 Table 1 FQ(Z)

MARGIN DECREASES IN EXCESS OF 2% PER 31 EFPD Cycle Maximum Decrease Burnup In F (Z)

MARGIN (MWD/MTU)

(Percent) 1233 1449 1666 4698 4914 5131 5347 5564 5780 5997 6214 6430 6647 8379 8596 8812 9029 9245 9462 9678 9895 10111 10328 10545 10761 10978 11194 11411 2.00 2.15 2.00 2.00 2.05 2.43 2.53 2.48 2.39 2.29 2.18 2.05 2.00 2.00 2.06 2.21 2.37 2.51 2.57 2.60 2.61 2.59 2.55 2.47 2.31 2.14 2.04 2.00 Note: All Cycle burnups outside the range of the table shall use a constant 2% decrease in FQ(Z) margin for compliance with the 3.2.1.2.a Surveillance Requirements.

Linear interpolation is acceptable to determine the FQ(Z) margin decrease for cycle burnups which fall between the specified burnups.

9 ERX-09-00i, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 Figure 1 Reactor Core Safety Limits 680 2445 psig 660 Unacceptable 640 -

0 1985 psig L-

4) 1845 psig 50 E

620 -____

560 0

20 40 60 80 100 120 140 Percent of Rated Thermal Power 10 ERX-09-001, Rev.

1

240 220 200 180 k14 160

.I)

-4I 0 140 120 z0 HEH M 100 0

80 o

60 COLR for CPNPP Unit 2 Cycle 12 FIGURE 2 ROD BANK INSERTION LIMITS VERSUS THERMAL POWER (2.,1

8) 19.6,218 BANK B

-(0,164)

(100,146)

BANK C

~BANK D 40 20 0

10 20 30 40 50 60 70 PERCENT OF RATED THERMAL POWER 80 90 100 NOTES:

1.

Fully withdrawn shall be the condition where control rods are at a position within the interval of 218 and 231 steps withdrawn, inclusive.

2.

Control Bank A shall be fully withdrawn.

11 ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 FIGURE 3 K(Z)

NORMALIZED FQ(Z)

AS A FUNCTION OF CORE HEIGHT 1.1 1.0 0.9 0.8 o0.7 rX 4

0.6 0

0-.5 1111111111M

ý I M 111 I 11H H H 1H 11 (0.13 1 0)

(6.011-0) 11111ý11111 I IT HT I I I I I

I I it, 4!

J I

2 0 0-21 H

H H

hk Hk dffld H

M d

dh d

d H(12 L-if 0.4 0.3 0.2 0.1 0.0 0

1 BOTTOM 2

3 4

5 6

7 8

9 10 11 12 CORE HEIGHT (FEET)

Axial Node 61 60 59 58 57 56 55 54 K (Z)

0. 9250

0. 9275 0.9300

0. 9325

0. 9350 0.9375 0.9400 0.9425 Axial Node 53 52 51 50 49 48 47 46 K(Z) 0.9450 0.9475 0.9500 0.9525 0.9550 0.9575 0.9600 0.9625 Axial Node 45 44 43 42 41 40 39 38 K(Z) 0.9650 0.9675 0.9700 0.9725 0.9750 0.9775 0.9800 0.9825 Axial Node 37 36 35 34 33 32 1 -

31 TOP K (Z) 0.9850 0.9875 0.9900 0.9925 0.9950 0.9975 1.0000 Core Height (ft)

=

(Node -

1)

• 0.2 12 ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 FIGURE 4 W(Z)

AS A FUNCTION OF CORE HEIGHT (150 MWD/MTU) 1.650 1.600 1.550 1.500 1.450 1.400 1.350 1.300 1.250 1.200 1.150 1.100 1.050 1.000 ztzJ z

0 1

2 3

4 5

6 7

8 9

10 11 12 BOTTOM Axial Node W (Z) 58 -

61 57 1.3589 56 1.3421 55 1.3280 54 1.3156 53 1.3027 52 1.2845 51 1.2606 50 1.2336 49 1.2054 48 1.1763 47 1.1511 46 1.1460 45 1.1469 CORE HEIGHT (FEET)

Axial Node 44 43 42 41 40 39 38 37 36 35 34 33 32 31 w(Z) 1.1542 1.1632

1. 1699 1.1774 1.1839 1.1880 1.1903 1.1918 1.1920 1.1901 1.1862 1.1804 1.1728 1.1640 Axial Node 30 29 28 27 26 25 24 23 22 21 20 19 18 17 w(Z) 1.1577 1.1570 1.1628 1.1725 1.1813 1.1888 1.1953 1.2006 1.2050 1.2085 1.2111

1. 2130 1.2142 1.2156 Axial Node 16 15 14 13 12 11 10 9

8 7

6 5

1 -

4 TOP w(Z) 1.2306 1.2516 1.2702 1.2892 1.3090 1..3297 1.3501 1.3691 1.3865 1.4014 1.4133 1.4237 Core Height (ft)

=

(Node -

1)

• 0.2 13 ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 FIGURE 5 W(Z)

AS A FUNCTION OF CORE HEIGHT (4,000 MWD/MTU) 1.650 1.600 1.550 1.500 1.450 N 1.400 1.350 1.300 1.250 1.200 1.150 1.100 1.050 1.000 Si.I I

i i i I i I i i

I U

-7I-0 1

2 3

4 5

6 7

8 9

10 11 12 BOTTOM Axial Node W (Z) 58 -

61 57 1.4243 56 1.4114 55 1.3933 54 1.3704 53 1.3444 52 1.3155 51 1.2847 50' 1.2523 49 1.2272 48 1.2106 47 1.1923 46 1.1732 45 1.1619 CORE HEIGHT (FEET)

Axial Node 44 43 42 41 40 39 38 37 36 35 34 33 32 31 w(Z) 1.1598 1.1600 1.1601 1.1609 1.1611 1.1600 1.1574 1.1532 1.1474 1.1413 1.1363 1.1322 1.1277 1.1233 Axial Node 30 29 28 27 26 25 24 23 22 21 20 19 18 17 w(Z) 1.1239 1.1317 1.1433 1.1535 1.1628 1.1713 1.1788 1.1854 1.1912 1.1958 1.2012 1.2088 1.2188 1.2316 Axial Node 16 15 14 13 12 11 10 9

8 7

6 5

1 -

4 TOP w(Z) 1.2487 1.2734 1.3036 1.3331 1.3626 1.3916 1.4197 1.4462 1.4707 1.4922 1.5094 1.5247 Core Height (ft)

=

(Node -

1)

• 0.2 14 ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 FIGURE 6 W(Z)

AS A FUNCTION OF CORE HEIGHT (7,000 MWD/MTU) 1.650 1.600 1.550 1.500 1.450 rŽ,, 1.400 1.350 1.300 1.250 1.200 1.150 1.100 1.050 1.000 0

1 2

3 4

5 6

7 8

9 10 11 12 BOTTOM CORE HEIGHT (FEET)

Axial Node 58 -

61 57 56 55 54 53 52 51 50 49 48 47 46 45 w(Z) 1.4158 1.4057 1.3898 1.3731 1.3601 1.3468 1.3310 1.3118 1.2899 1.2656 1.2419 1.2294 1.2253 Axial Node 44 43 42 41 40 39 38 37 36 35 34 33 32 31 w(Z) 1.2224 1.2166 1.2082 1.1998 1.1941 1.1888 1.1824 1.1776 1.1708 1.1619 1.1514 1.1394 1.1275 1.1223 Axial Node 30 29 28 27 26 25 24 23 22 21 20 19 18 17 w(Z) 1.1192 1.1181 1.1228

1. 1310 1.1386 1.1451 1.1511 1.1562 1.1608 1.1649 1.1682 1.1723 1.1791 1.1869 Axial Node 16 15 14 13 12 11 10 9

8 7

6 5

1 -

4 TOP w(Z) 1.1986 1.2187 1.2447 1.2699 1.2952 1.3202 1.3443 1.3673 1.3884 1.4069 1.4213 1.4338 Core Height (ft)

= (Node -

1)

• 0.2 15 ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 FIGURE 7 W(Z)

AS A FUNCTION OF CORE HEIGHT (11,000 MWD/MTU) 1.650 1.600 1.550 1.500 1.450 N 1.400 1.350 2

1.300 1.250 1.200 1.150 1.100 1.050 1.000 0

1 2

3 4

5 6

7 8

9 10 11 12 BOTTOM CORE HEIGHT (FEET)

Axial Node 58 -

61 57' 56 55 54 53 52 51 50 49 48 47 46 45 W(Z) 1.4639 1.4579 1.4415 1.4274 1.4183 1.4014 1.3796 1.3560 1.3297 1.3013 1.2770 1.2644 1.2558 Axial Node 44 43 42 41 40 39 38 37 36 35 34 33 32, 31 w(Z) 1.2523 1.2517 1.2459 1.2383 1.2283 1.2181 1.2083 1.1966 1.1909 1.1851 1.1757 1.1646 1.1515 1.1370 Axial Node 30 29 28 27 26 25 24 23 22 21 20 19 18 17 W(Z) 1.1285 1.1292 1.1343 1.1380 1.1409 1.1437 1.1460 1.1474 1.1486 1.1524 1.1566 1.1599 1.1627 1.1646 Axial Node 16 15 14 13 12 11 10 9

8 7

6 5

1 -

4 TOP w(Z) 1.1711 1.1844 1.2014 1.2176 1.2338 1.2496 1.2651 1.2807 1.2956 1.3085 1.3181 1.3259 Core Height (ft)

=

(Node -

1)

• 0.2 16 ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 FIGURE 8 W(Z)

AS A FUNCTION OF CORE HEIGHT (20,000 MWD/MTU) 1.650 1.600 1.550 1.500 1.450 N 1.400 1.350 1.300 1.250 1.200 1.150 1.100 1.050 1.000

---t --- N,

~jiiz4~s~z i i i

0.1

.2 3

4 5

6 7

8 9

10 11 12 BOTTOM Axial Node W (Z) 58 -

61 57 1.3907 56 1.3903 55 1.3811 54 1.3673 53 1.3519 52 1 3342 51 1.3137 50 1.2919 49 1.2669 48 1.2450 47 1.2367 46 1.2335 45 1.2268 CORE HEIGHT (FEET)

Axial Node 44 43 42 41 40 39 38 37 36 35 34 33 32 31 w(Z)

1. 2188

1. 2170 1.2238 1.2304 1.2374 1.2436 1.2477 1.2516 1.2526 1.2504 1.2454

1. 2376 1.2273 1.2138 Axial Node 30 29 28 27 26 25 24 23 22 21 20 19 18 17 w(Z) 1.2023 1.1988 1.2002 1.2007 1.1992 1.1972 1.1942 1.1895 1.1847 1.1808 1.1769 1.1722 1.1671 1.1659 Axial Node 16 15 14 13 12 11 10 9

8 7

6 5

1 -

4 TOP w(Z) 1.1760 1.1940 1.2094 1.2252 1.2406 1.2556 1.2702 1.2841 1.2 969 1.3079 1.3161 1.3225 Core Height (ft)

=

(Node -

1)

• 0.2 17 ERX-09-001, Rev.

1

COLR for CPNPP Unit 2 Cycle 12 FIGURE 9 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER 100 90 80 70 0

0 O

60 50 40 30 i(-15,1oo) 0 N

(10,1,00)

I

,,I UNACCEPTABLE UNACCEPTABLE OPERATION OPERATION ACCEPTABLE OPERATION

(-3 0,50)---------------------}

(30,50) i [ i tt

-ii

-- i

-30,50)-----

}

I Iii Ii' iI 20 10 0

-4 JJJ.1LLL1L111!1111iJ.1JJ111L1LLLL11111 0

-30

-20

-10 0

10 AXIAL FLUX DIFFERENCE (%)

20 30 40 18 ERX-09-001, Rev.

1