Text

Core Operating Limits Reports (Colr), Unit 1- Revision 10, Unit 2- Revision 10, and Unit 3- Revision 12
	ML041170393
Person / Time
Site:	Palo Verde
Issue date:	04/16/2004
From:	Bauer S, Marks D; Arizona Public Service Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	102-05089-SAB/TNW/JAP
	Download: ML041170393 (80)
	v • d • e

LA M Scott A. Bauer Department Leader Regulatory Affairs Tel: 623/393-5978 Mail Station 7636 Palo Verde Nuclear Fax: 6231393-5442 P.O. Box 52034 Generating Station e-mail: sbauer~apsc.com Phoenix, AZ 85072-2034 102-05089-SAB/TNW/JAP April 16, 2004 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station P1-37 Washington, DC 20555-0001

Dear Sirs:

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Units 1, 2, and 3 Docket Nos. STN 50-528/5291530 Core Operating Limits Reports (COLR), Unit 1-Revision 10, Unit 2-Revision 10, and Unit 3-Revision 12 Pursuant to PVNGS Technical Specifications, Section 5.6.5.d, enclosed is Unit 1-Revision 10, Unit 2-Revision 10, and Unit 3-Revision 12 COLRs, which were made effective on April 15, 2004. These revisions of the COLRs consist of changing the wording for full length control element assemblies (CEAs) to full strength CEAs, addition of work control process numbering of Analytical Methods (Unit 1 and Unit 3 COLRs only), modifying the COLR wording for LCO 3.2.3 (Azimuthal Power Tilt) to be consistent with that of Technical Specification LCO 3.2.3 (Unit 1 and Unit 3 COLRs only), removal of some redundant tabular information in Figures 3.1.7-1 and 3.1.7.-2 (Unit 1 and Unit 3 COLRs only), and other minor editorial changes. The changes for the "full length" to "full strength" CEAs are associated with the implementation of PVNGS Operating License Amendment No.152. These revisions replace the previous Unit 1 (Revision 9), Unit 2 (Revision 9), and Unit 3 (Revision 11) COLRs.

By copy of this letter and the enclosures, these COLR revisions are being provided to the NRC Region IV Administrator and the PVNGS Senior Resident Inspector.

This letter does not make any commitments to the NRC.

Please contact Thomas N. Weber at (623) 393-5764 if you have any questions or require additional information.

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

Comanche Peak

Diablo Canyon

Palo Verde

South Texas Project

Wolf Creek

U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Core Operating Limits Reports (COLR), Unit 1-Revision 10, Unit 2-Revision 10, and Unit 3-Revision 12 Page 2 SAB/TNW/JAP

Enclosures:

1. Core

2. Core

3. Core Operating Limits Report for PVNGS Unit 1-Revision 10 Operating Limits Report for PVNGS Unit 2-Revision 10 Operating Limits Report for PVNGS Unit 3-Revision 12 NRC Region IV Regional Administrator NRC NRR Project Manager NRC Senior Resident Inspector for PVNGS cc:

B. S. Mallett M. B. Fields N. L. Salgado Core Operating Limits Reports for PVNGS Unit I-Revision 10

Revision 10 PVNGS UNIT I CORE OPERATING LIMITS REPORT CORE OPERATING LIMITS REPORT PALO VERDE NUCLEAR GENERATING STATION (PVNGS)

UNIT I Revision 10 I

Responsible Engineer Digitally signed by: Hwang, Lun-Chih Date (ZO1668)

Date: 04/09/2004 14:04:08 Reason: I am the author of this document Location: PVNGS Independent Reviewer Digitally signed by: Trimble, Patrick Date C(Z95337)

Date: 04/09/2004 16:15:17 Reason: I have reviewed this document Location: PVNGS Responsible Section Leader Digitally signed by: Cannon, Thomas Date C(Z20485)

Date: 04/09/2004 16:26:40 Reason: I am approving this document Location: PVNGS Page I of 25

Revision 10 PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Table of Contents Description Revision #

Page Cover Page 10 1

Table of Contents 10 2

List of Figures 10 3

List of Tables 9

4 Affected Technical Specifications 10 5

Analytical Methods 10 6

10 7

CORE Operating Limits 3.1.1 Shutdown Margin (SDM) - Reactor Trip Breakers Open 10 8

3.1.2 Shutdown Margin (SDM) - Reactor Trip Breakers Closed 10 8

3.1.4 Moderator Temperature Coefficient (MTC) 10 8

3.1.5 Control Element Assembly (CEA) Alignment 10 8

3.1.7 Regulating CEA Insertion Limits 10 8

3.1.8 Part Strength CEA Insertion Limits 10 9

3.2.1 Linear Heat Rate (LHR) 10 9

3.2.3 Azimuthal Power Tilt (Tq) 10 9

3.2.4 Departure From Nucleate Boiling Ratio (DNBR) 10 9

3.2.5 Axial Shape Index (ASI) 8 10 3.3.12 Boron Dilution Alarm System (BDAS) 8 10 3.9.1 Boron Concentration 8

10 Page 2 of 25

Revision 10 PVNGS UNIT I CORE OPERATING LIMITS REPORT List of Figures Description Figure 3.1.1-1 Shutdown Margin Versus Cold Leg Temperature Reactor Trip Breakers Open Figure 3.1.2-1 Shutdown Margin Versus Cold Leg Temperature Reactor Trip Breakers Closed Figure 3.1.4-1 MTC Acceptable Operation, Modes I and 2 Figure 3.1.5-1 Core Power Limit After CEA Deviation Figure 3.1.7-1 CEA Insertion Limits Versus Thermal Power (COLSS in Service)

Figure 3.1.7-2 CEA Insertion Limits Versus Thermal Power (COLSS Out of Service)

Figure 3.1.8-1 Part Strength CEA Insertion Limits Versus Thermal Power Figure 3.2.4-1 COLSS DNBR Operating Limit Allowance for Both CEACs Inoperable Figure 3.2.4-2 DNBR Margin Operating Limit Based on the Core Protection Calculators (COLSS Out of Service, CEACs Operable)

Figure 3.2.4-3 DNBR Margin Operating Limit Based on the Core Protection Calculators (COLSS Out of Service, CEACs Inoperable)

Revision #

8 8

10 10 10 8

8 8

Pane I1 12 13 14 15 16 17 18 19 I

20 Page 3 of 25

Revision 9 PVNGS UNIT 1 CORE OPERATING LIMITS REPORT List of Tables Description Revision #

Page Table 3.3.12-1 Required Monitoring Frequencies for Backup Boron 8

21 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for KeffP 0.98 Table 3.3.12-2 Required Monitoring Frequencies for Backup Boron 8

22 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.98 > Keff > 0.97 Table 3.3.12-3 Required Monitoring Frequencies for Backup Boron 8

23 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.97 > Keff > 0.96 Table 3.3.12-4 Required Monitoring Frequencies for Backup Boron 8

24 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.96 > Keff > 0.95 Table 3.3.12-5 Required Monitoring Frequencies for Backup Boron 8

25 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff < 0.95 Page 4 of 25

Revision 10 PVNGS UNIT I CORE OPERATING LIMITS REPORT This Report has been prepared in accordance with the requirements of Technical Specification 5.6.5. The Core Operating Limits have been developed using the NRC approved methodologies specified in Section 5.6.5 b of the Palo Verde Unit I Technical Specifications.

AFFECTFD PVNGS TECHNICAL SPECIFICATIONS 3.1.1 Shutdown Margin (SDM) - Reactor Trip Breakers Open 3.1.2 Shutdown Margin (SDM) - Reactor Trip Breakers Closed 3.1.4 Moderator Temperature Coefficient (MTC) 3.1.5 Control Element Assembly (CEA) Alignment 3.1.7 Regulating CEA Insertion Limits 3.1.8 Part Strength CEA Insertion Limits 3.2.1 Linear Heat Rate (LHR) 3.2.3 Azimuthal Powver Tilt (Tq) 3.2.4 Departure From Nucleate Boiling Ratio (DNBR) 3.2.5 Axial Shape Index (ASI) 3.3.12 Boron Dilution Alarm System (BDAS) 3.9.1 Boron Concentration Page 5 of 25

Revision 10 PVNGS UNIT I CORE OPERATING LIMITS REPORT ANAIYTICAI, METHODS The analytical methods used to determine the core operating limits shall be those previously reviewed and approved by the NRC, specifically those described in the following documents:

Title Report No.

Rev Date Supplement I) CE Method for Control Element Assembly Ejection Analysis (13-N001-1301-01204-1)

2) The ROCS and DIT Computer Codes for Nuclear Design (13-N001-1900-01412-0)

CENPD-0 190-A CENPD-266-P-A N.A.

January 1976 N.A.

I N.A.

April 1983 N.A.

I

3) Modified Statistical Combination of Uncertainties (13-NOOI-1303-01747-2)

4) System 8 0TM Inlet Flow Distribu-tion (13-NOOI-1301-01228-0)

5) Calculative Methods for the CE Large Break LOCA Evaluation Model for the Analysis of CE and W Designed NSSS (13-NOOI -1900-01192-3)

6) Calculative Methods for the CE Small Break LOCA Evaluation Model (13-NOOI - 1900-01185-3)

CEN-356(V)-P-A 01-P-A (ARI)

May 1988 (April 1996)

N.A.

I Enclosure 1-P to LD-82-054 CENPD-132 N.A.

February 1993 N.A.

March 2001 I-P I

4-P-A I

CENPD-137-P N.A.

April 1998 2-P-A I

7) Fuel Rod Maximum Allowable Pressure (13-NOOI-0201-00026-1)

CEN-372-P-A N.A.

May 1990 N.A.

I I

8) Arizona Public Service Com-pany PWR Reactor Physics Meth-odology Using CASMO-4/

SIMULATE-3 (NFM-002)

N.A.

September 1999 N.A.

I Page 6 of 25

Revision 10 PVNGS UNIT 1 CORE OPERATING LIMITS REPlORT Title

9) Technical Manual for the CENTS Code (13-N001-1303-02349-1 for Vol. I 13-NOOI-1303-02348-1 for Vol. 2 13-NOOI -1303-02376-1 for vol. 3 13-NOOI-1303-02375-1 for Supple-ment I Report No.

CE-NPD 282-P-A V'ols. 1-3 Rev N.A.

Date June 1993 Supplement I

I

10) Implementation of ZIRLOTNI Cladding Material in CE Nuclear Power Fuel Assembly Designs (13-NOOI -1900-01329-0)

CENPD-404-P-A 0

November 2001 N.A.

I Page 7 of 25

Revision 10 PVNGS UNIT I CORE OPERATING LIMITS REPORT The cycle-specific operating limits for the specifications listed are presented below.

3.1.1 - Shutdown Margin (SDM) - Reactor Trip Breakers Open The Shutdown Margin shall be greater than or equal to that shown in Figure 3.1.1-I.

3.1.2 - Shutdown Margin (SDM) - Reactor Trip Breakers Closed The Shutdown Margin shall be greater than or equal to that shown in Figure 3.1.2-1.

3.1.4 - Moderator Temperature Coefficient (MTC)

Tile moderator temperature coefficient (MTC) shall be within the area of Acceptable Operation shown in Figure 3.1.4-1.

3.1.5 - Control Element Assembly (CEA) Alignment With one or more full-strength or part-strength CEAs misaligned from any other CEAs in its group by more than 6.6 inches, the minimum required MODES I and 2 core power reduction is specified in Figure 3.1.5-1.

3.1.7 - RcePulatini CEA Insertion limits One or more CEACs OPERABLE: With COLSS IN SERVICE, regulating CEA groups shall be limited to the withdrawal sequence and to the insertion limits1 shown in Figure 3.1.7 12; with COLSS OlJTOF SERVICE, regulation CEA groups shall be limited to the withdrawal sequence and to the insertion limitsi shown in Figure 3.1.7-2.2 I A reactor power cutback will cause either (Case I) Regulating Group 5 or Regulating Group 4 and 5 to be dropped with no sequential insertion of additional Regulating Groups (Groups 1, 2, 3, and 4) or (Case 2) Regulating Group 5 or Regulating Group 4 and 5 to be dropped with all or part of the remaining Regulating Groups (Groups 1, 2, 3, and 4) being sequentially inserted. In either case, the Transient Insertion Limit and withdrawal sequence specified in the CORE OPERATING LIMITS REPORT can be exceeded for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months .

2 The Separation between Regulating Groups 4 and 5 may be reduced from the 90 inch value specified in Figures 3.1.7-1 and 3.1.7-2 provided that each of the following conditions are satisfied:

Page 8 of 25

Revision 10 PVNGS UNIT I CORE OPERATING LIMITS REPORT a) Regulating Group 4 position is between 60 and 150 inches withdrawn.

b) Regulating Group 5 position is maintained at least 10 inches lower than Regulating Group 4 position.

c) Both Regulating Group 4 and Regulating Group 5 positions are maintained above the Transient Insertion Limit specified in Figure 3.1.7-1 (COLSS In Service) or Figure 3.1.7-2 (COLSS Out of Service).

3.1.8 - Part Strength CEA Insertion Limits One or more CEACs OPERABLE: The part strength CEA groups shall be limited to the insertion limits shown in Figure 3.1.8-1.

3.2.1 - Linear Heat Rate (Il-IR)

The linear heat rate limit of 13.1 kW/ft shall be maintained.

3.2.3 - Azimuthal Power Tilt (Tq)

The AZIMUTIIAL POWER TILT (Tq) shall be less than or equal to 5% with COLSS IN SERVICE when power is greater than 20%.

3.2.4 - Departure From Nucleate Boiling Ratio (DNBR)

COLSS IN SERVICE and Both CEACs INOPERABLE - Maintaining COLSS calculated core power less than or equal to COLSS calculated core power operation limit based on DNBR decreased by the allowance shown in Figure 3.2.4-1.

COLSS OUT OF SERVICE and Either One or Both CEACs are OPERABLE -

Operating within the region of acceptable operation of Figure 3.2.4-2 using any operable CPC channel.

COLSS OUT OF SERVICE and CEACs INOPERABLE - Operating within the region of acceptable operation of Figure 3.2.4-3 using any operable CPC channel.

Page 9 of 25

Revision 8 PVNGS UNIT I CORE OPERATING LIMITS REPORT 3.2.5 - Axial Shap~e Index (ASI)

The core average AXIAL SI-APE INDEX (ASI) shall be maintained within the following limits:

COLSS OPERABLE

-0.18 *<ASI *).18 for power>50%

-0.28 < ASI < 0.18 for power < 50%

COLSS OUT OF SERVICE (CPC)

-0.10 IASI 5D.I0 3.3.12 - Boron Dilution Alarm System (BDAS)

With one or both start-up channel high neutron flux alarms inoperable, the RCS boron concentration shall be determined at the applicable monitoring frequency specified in Tables 3.3.12-1 through 3.3.12-5.

3.9.1 - Boron Concentration The boron concentration of all filled portions of the Reactor Coolant System and the refueling canal shall be maintained at a uniform concentration 2 3000 ppm.

Page 10 of 25

PVNGS UNIT I CORE OPERATING LIMITS REPORT Revision 8 FIGURE 3.1.1-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS OPEN 5

(500.50 REGION OF AACCEPTABLE OPERATION ok4.......................

z

>1 3

a REGION OF UNACCEPTA BLE OPERATION I.

S l..........

(350,1,.0) 0 i..

0 100 200 300 400 500 600 COLD LEG TEMPERATURE ('IF)

Page II of 25

PVNGS UNIT I CORE OPERATING LIMITS REPORT Revision 8 FIGURE 3.1.2-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS CLOSED (500.6.5)X 6..............................................................

REGION OF ACCEPTABLE OPERATION--.

~2 Z

(350,4.0)

DO:

REGION OF UNACCEPTABLE 2

OPERATION l..................................................................................................................... I......................

0 1tO 200 300 400 500 600 COLD LEG TEMPERATUREl

('E)

Page 12 of 25

PVNGS UNIT I CORE OPERATING LIMITS REPORT FIGURE 3.1.4-1 Revision 8 MTC ACCEPTABLE OPERATION, MODES I AND 2 0.5 0.0

'L'....'..........

(o

~~~~~~~~~~~~.o.s,

-'w.@

-e'" "B

...............................10%

7 0..

..)

J

£ 0

C-z w

0E LU H

0 H

C cw a=

Li

-0.5

-1.0

-1.5

-2.0

-2.5

-3.0

-3.5 (100%.-O4

..........................................I..............:..........................

TCAREA.

ACCEPTABLE

.I

.OPERATION

3.4 i

0 20 3

0 5

0 7

0 9

0

-4.0

-4.5 CORE POWER LEVEL (5%, OF RATED THERMAL POWER)

End ot Cycle Limit Beginning of Cycle Limit TECH SPEC 3.1.4 Maximum Upper Limit Page 13 of 25 W..N..

PVNGS UNIT I CORE OPERATING LIMITS REPORT Rcvision 8 FIGURE 3.1.5-1 CORE POWER LIMIT AFTER CEA DEVIATIONI 30.

30 O

(60 MIN. 20.0%)

.O.

ojo (10 MEIN. 0.0%S)

.0........ I......... I......

I..

i.............

0 10 20 30 40 50 60 TIME AFTER DEVIATION, MINUTES

WHEN CORE POWER IS REDUCED TO 55% OF RATED THERMAL POWER PER THIS LIMIT CURVE. FURTHER REDUCTION IS NOT REQU IRED.

Page 14 of25

PVNGS UNIT I CORE OPERATING LIMITS REPORT Revision 10 FIGURE 3.1.7-1 CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS IN SERVICE)

0.

..................... (51--lI-1-OOTINO'I'I -IN-SI-7C-IION 1*7-

0. '

.OR APP'lACAIIIT,1 F'lOllONN'ING.

o s A REACTOR CUTBACK) 0.7 G RP 4 P0S =(72.5:x IRAG C PW

" R) + -25.5.....

I GRP 5 P10S 125xFRC IN

- 64.5 0

o>

Z

0.

-i> \\::.

O t3 H;

z<3 Uw o.E-7

\\

0.3 A.....

\\.

7,--

0.

0 H.2 :..........

0.0

0.

DH GROUP GROUP3 GROUP I 190 120 90 60 30 0

190 120 90 60 30 0

150 120 90 60 30 0

GROUP4 GROUP2

I 9.

I CEA 1POS ITION (INCHES W ITHD)RAWN)

Page 15 of 25

PVNGS UNIT I CORE OPERATING LIMITS REPORT Revision 10 FIGURE 3.1.7-2 CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS OUT OF SERVICE)

J.o

-I

,1 1--

~r

,I

.09 0.9 0.8 (SI I

I.....

- -- OOTNOI'IT IN 'SEICTION 3.1;7 -

7 FOR AI'1,ICAIBIIIT'Y'IIOIIOWN'ING 0.7 A

j.

.U A..TA.C.K 0

z 0

O 0.!;

.\\..

0

(.6 _.H GRP 4.

P0

..-.Gt'p=('0.9, FRAC;PWR)'4+ 9.82-H Zt W

Z Es-()5 O

<:F-z 0.43 tn 4

Wz...

.I n::_

0.2 D O D:Fc.

0.1..

GROUP S GROUP 3 GROUP]I 150 120 90 60 30 0

150 120 90 60 30 0

GROUP 4 GROUP 2 jt 09+

640 3+0 4

O It0 d9O tI I

CEA POSITION (INCHES WITHDRAWN)

Page 16 of25

PVNGS UNIT I CORE OPERATING LIMITS REPORT FIGURE 3.1.8-1 PART STRENGTH CEA INSE VERSUS THERMAL I

-1,

Revision 10 RTION LIMITS POWER I

u.u 10.0 20.0 30.0 C

40.0

.r 50.0 v)w Z

760.0 uz Z

70.0 0

o 80.0 a.

CLL U

9(.(

0Z 100.0 Ln 110.0 CL 120.0 130.0 140.0 150.0 l...

g.

.I IFRANSIEiNT INSE'RTION LIM IT (75.0INCI IES

.*I:

'OPERATION "OPERATION' UNACCEPTABL E RESTRICTED 0

LONG TERM STEADY STATE INSERTION-LIMITS (I 12.5 INCHES)

OPERATION.ACCEP TA:..

.E..............

~~OPERATION ACCEPTBERTO....-

.0 0.9

(.8 0.7 0.6 0.5 0.4 0.3 FRACTION OF RATED THERMAL POWER 0.2 0.1 0.0 Page 17 of 25

PVNGS UNIT I CORE OPERATING LIMITS REPORT Revision 8 FIGURE 3.2.4-1 COLSS DNBR OPERATING LIMIT ALLOWANCE FOR BOTH CEAC's INOPERABLE 25 z0 C-)

r 0~

-0 0:

w -)

20 15 10 5

0 0

25 50 75 CORE POWER LEVEL

(% OF RATED THERMAL POWER) 100 Page 18 of 25

PVNGS UNIT I CORE OPERATING LIMITS REPORT Revision 8 FIGURE 3.2.4-2 DNBR MARGIN OPERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, CEAC's OPERABLE) 2.5 2.4 2.3

.(-0.

1,2.29)

~~.................,,

ACCE.PTABLE, OPE:RATI 6 N ANYE POWETR LEVELT 90, MINIMUM 01F I,CEAC OPElRABLEr (0.02.2.38)

I.I.

.I I.

I I

NINNII' OF.CEA OPRB (0.1I,2.38) z m

C:

z

)E 2.2 2.1

..-Q...1 -03)........

2.0 1.9 I.................

(0.05.2.03) 1

(-O. I.l.9( )

s.

UNACCEPTABLE

--OPLERATION

I.I.

I...

I 1.8

'0

-0.20

....... I.........

I I................

-0.15

-0.10

-0.05 0.00 0.05 0.10 0.15 0.20 CORE AVERAGE ASI Page 19 of 25

PVNGS UNIT I CORE OPERATING LIMITS REPORT Revision 8 FIGURE 3.2.4-3 DNBR MARGIN OPERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, CEAC's INOPERABLE) 3.6 3.5 3.4 z

CD UD

F 3.3

~~~~~....

ACCEPTABLE OPERATION ANY. POWER LEVEL CEAC's INOPERABLE (0. 1,3.32)

.(0.3,3.32)

UNACCEPTABLE

. OPRATION

~

- - j**~~

I LLLLLL 3.2 3.1

'2 r' I

J.J

-0.20

-0.15

-0.10

-0.05 0.00 0.05 CORE AVERAGE ASI 0.10 0.15 0.20 Page 20 of 25

Revision 8 PV'NGS UNIT 1 CORE OPERATING LIMITS REP'ORT Table 3.3.12-1 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Kel> 0.98 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 4& 5 on SCS ONA ONA ONA ONA Notes:

SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 21 of 25

Revision 8 PVNGS UNIT 1 CORE OPERATING LIMITS REPORT Table 3.3.12-2 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHIARGING PUMPS AND PLANT OPERATIONAL MODES FOR 0.98 Ž Kell-> 0.97 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months I hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA Notes:

SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 22 of 25

Revision 8 PIVNGS UNIT I CORE OP1EIRATING LIMITS IREPORIT Table 3.3.12-3 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR 0.97 2 Kell'> 0.96 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months I hour ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months I hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months I hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months I hour ONA ONA Notes:

SCS = Shutdown Cooling Svstem ONA = Operation Not Allowed Page 23 of 25

Revision 8 PIVNGS UNIT I CORE OPERATING LIMITS REPlORT Table 3.3.12-4 REQUIRED MONITORING FREQUENCIES F-OR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CIIARGING PUMPS AND PLANT OPERATIONAL MODES FOR 0.96 2 Kenll> 0.95 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 3 hours I hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 3.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 3.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA Notes:

SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 24 of 25

Revision 8 P'VNGS UNIT I CORE OlPEIRATING LIMITS REP'ORZT Table 3.3.12-5 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Kcij*<0.95 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 4 hours 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1 hour 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 4.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 2 hours 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 4.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 2 hours I hour 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 2 hours 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months ONA 6

24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA Notes:

SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 25 of 25 Core Operating Limits Reports for PVNGS Unit 2-Revision 10

Revision 10 I'VNGS UNIT 2 CORE OP;ERATING LIMITS RZEPORT CORE OPERATING LIMITS REPORT PALO VERDE NUCLEAR GENERATING STATION (PVNGS)

UNIT 2 Revision 10 I

Responsible Engineer Digitally signed by: Hwang, Lun-Chih Date (Z01668)

Date: 04/09/2004 14:19:14 Reason: I am the author of this document Location: PVNGS Independent Reviever Digitally signed by: Trimble, Patrick Date C(Z95337)

Date: 04/09/2004 16:17:40 Reason: I have reviewed this document Location: PVNGS Responsible Section Leader Digitally signed by: Cannon, Thomas Date C(Z20485)

Date: 04/0912004 16:29:05 Reason: I am approving this document Location: PVNGS Page I of 25

Revision 10 PIVNGS UNIT 2 CORE OPERATING LIMITS REPORT Table of Contents Description Revision #

Page Cover Page 10 Table of Contents 10 2

List of Figures 9

3 List of Tables 8

4 Affected Technical Specifications 8

5 Analytical Methods 10 6

10 7

CORE Operating Limits 3.1.1 Shutdown Margin (SDM) - Reactor Trip Breakers Open 10 8

3.1.2 Shutdown Margin (SDM) - Reactor Trip Breakers Closed 10 8

3.1.4 Moderator Temperature Coefficient (MTC) 10 8

3.1.5 Control Element Assembly (CEA) Alignment 10 8

3.1.7 RCgulating CEA Insertion Limits 10 8

3.1.8 Part Length CEA Insertion Limits 9

9 3.2.1 Linear Heat Rate (LIIR) 9 9

3.2.3 Azimuthal Power Tilt (Tq) 9 9

3.2.4 Departure From Nucleate Boiling Ratio (DNBR) 9 9

3.2.5 Axial Shape Index (ASI) 9 10 3.3.12 Boron Dilution Alarm System (BDAS) 9 10 3.9.1 Boron Concentration 9

10 Page 2 of 25

Revision 9 P'1NGS UNIT 2 CORE OPERATING LIMITS REPORT List of Figures Description Figure 3.1. 1-I Shutdown Margin Versus Cold Leg Temperature Reactor Trip Breakers Open Figure 3.1.2-1 Shutdown Margin Versus Cold Leg Temperature Reactor Trip Breakers Closed Figure 3.1.4-1 MTC Acceptable Operation, Modes I and 2 Figure 3.1.5-1 Core Power Limit After CEA Deviation Figure 3.1.7-1 CEA Insertion Limits Versus Thermal Power (COLSS in Service)

Figure 3.1.7-2 CEA Insertion Limits Versus Thermal Power (COLSS Out of Service)

Figure 3.1.8-1 Part Length CEA Insertion Limits Versus Thermal Power Figure 3.2.4-1 COLSS DNBR Operating Limit Allowance for Both CEACs Inoperable In Any Operable CPC Channel Figure 3.2.4-2 DNBR Margin Operating Limit Based on the Core Protection Calculators (COLSS Out of Service, CEAC(s)

Operable)

Figure 3.2.4-3 DNBR Margin Operating Limit Based on the Core Protection Calculators (COLSS Out of Service, Both CEACs Inoperable In Any Operable CPC Channel)

Revision #

8 8

9 9

8 9

9 9

Page 11 12 13 14 15 16 17 18 19 20 Page 3 of 25

Revision 8 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT List of Tables Description Revision#

Page Table 3.3.12-1 Required Monitoring Frequencies for Backup Boron 8

21 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff> 0.98 Table 3.3.12-2 Required Monitoring Frequencies for Backup Boron 8

22 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.98 > KefT> 0.97 Table 3.3.12-3 Required Monitoring Frequencies for Backup Boron 8

23 Dilution Detection as a Function of Operating Charging PLumps and Plant Operational Modes for 0.97 > Keff > 0.96 Table 3.3.12-4 Required Monitoring Frequencies for Backup Boron 8

24 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.96 > Keff> 0.95 Table 3.3.12-5 Required Monitoring Frequencies for Backup Boron 8

25 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff < 0.95 Page 4 of 25

Revision 8 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT This Report has been prepared in accordance with the requirements of Technical Specification 5.6.5. The Core Operating Limits have been developed using the NRC approved methodologies specified in Section 5.6.5 b of the Palo Verde Unit 2 Technical Specifications.

AFFECTED) PVNGS TECHNICAL SPECIFICATIONS 3.1.1 Shutdown Margin (SDM) - Reactor Trip Breakers Open 3.1.2 Shutdown Margin (SDM) - Reactor Trip Breakers Closed 3.1.4 Moderator Temperature Coefficient (MTC) 3.1.5 Control Element Assembly (CEA) Alignment 3.1.7 Regulating CEA Insertion Limits 3.1.8 Part Length CEA Insertion Limits 3.2.1 Linear Heat Rate (LI-IR) 3.2.3 Azimuthal Power Tilt (Tq) 3.2.4 Departure From Nucleate Boiling Ratio (DNBR) 3.2.5 Axial Shape Index (ASI) 3.3.12 Boron Dilution Alarm System (BDAS) 3.9.1 Boron Concentration Page 5 of 25

Revision 10 PNINGS UNIT 2 CORE OPERATING LIMITS REPOI'RT ANAILTICAL METHOI)S The analytical methods used to determine the core operating limits shall be those previouIsly reviewed and approved by the NRC, specifically those described in the following documents:

l itle Report No.

Rev, Date Supplement

1) CE Method for Control Element Assembly Ejection Analysis (13-NOOI-1301-01204-1)

2) The ROCS and DIT Computer Codes for Nuclear Design (I3-NOO1-1900-01412-0)

CENPD-0 190-A CENPD-266-P-A N.A.

January 1976 N.A.

N.A.

April 1983

3) Modified Statistical Combination of Uncertainties (13-NOOI-1303-01747-2)

4) System 80M Inlet Flow Distribu-tion (13-NOOI-1301-01228-0)

5) Calculative Methods for the CE Large Break LOCA Evaluation Model for the Analysis of CE and WV Designed NSSS (13-N001 -1900-01192-3)

6) Calculative Methods for the CE Small Break LOCA Evaluation Model (13-NOOI-1900-01185-3)

7) Fuel Rod Maximum Allowable Pressure (13-NOO1 -0201-00026-1)

8) Arizona Public Service Company P\\VR Reactor Physics Methodology Using CASMO-4/SIMULATE-3 (NFM-002)

CEN-356(V)-P-A 01 -P-A (ARI)

May 1988 (April 1996)

N.A.

Enclosure 1-P to LD-82-054 CENPD-132 CENPD-137-P CEN-372-P-A N.A.

N.A.

February 1993 N.A.

March 2001 I-P 4-P-A I

N.A.

April 1998 May 1990 2-P-A I

N.A.

September 1999 Page 6 of 25

Revision 10 PVNGS UNIT 2 CORE OP'ERATING LIMITS REPlORT Title Report No.

Rev N.A.

Date June 1993 Supplement

9) Technical Manual for the CENTS Code (13-NOOI-1303-02349-1 for Vol. I 13-NOOI -1303-02348-1 for \\Vol. 2 13-NOOI -1303-02376-1 for Vol. 3 13-NOO1-1303-02375-1 for SuppIC-mcnt 1)

10) Implementation of ZIRLOXM Cladding Material in CE Nuclear Power Fuel Assembly Designs (13-N001-1900-01329-0)

CE-NPD 282-P-A Vols. 1-3 I

I CENPD-404-P-A 0

November 2001 N.A.

Page 7 of 25

Revision 10 PVNGS UNIT 2 CORE OPERATING LIMITS RZEPlORT The cycle-specific operating limits for the specifications listed are presented below.

3. 1 1 - Shutdown Marvin (SDM) - Reactor Trip Breakers Open The Shutdown Margin shall be greater than or equal to that shown in Figure 3. 1. 1-I.

3.1.2 - Shutdown Margin (SDM) - Reactor Trip Breakers Closed The Shutdown Margin shall be greater than or equal to that shown in Figure 3.1.2-1.

3.1.4 - Moderator Temperature Coefficient (MTC)

The moderator temperature coefficient (MTC) shall be within the area of Acceptable Operation shown in Figure 3.1.4-1.

3.1.5 - Control Element Assemblv (CEA) Alignment With one or more ftill-strength or part-length CEAs misaligned from any other CEAs in its group by more than 6.6 inches, the minimum required MODES I and 2 core power reduction is specified in Figure 3.1.5-1.

3.1.7 - Regulating CEA Insertion limits

\\With COLSS IN SERVICE, regulating CEA groups shall be limited to the withdrawal sequence and to the insertion limits1 shown in Figure 3.1.7 12; with COLSS OUl' OF SERVICE, regulation CEA groups shall be limited to the wvithdrawal sequence and to the insertion limits' shown in Figure 3.1.7-2.2 l A reactor power cutback will cause either (Case I) Regulating Group 5 or Regulating Group 4 and 5 to be dropped with no sequential insertion of additional Regulating Groups (Groups I, 2, 3, and 4) or (Case 2) Regulating Group 5 or Regulating Group 4 and 5 to be dropped with all or part of the remaining Regulating Groups (Groups 1, 2, 3, and 4) being sequentially inserted. In either case, the Transient Insertion Limit and wvithdrawal sequence specified in the CORE OPERATING LIMITS REPORT can be exceeded for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months .

2 The Separation between Regulating Groups 4 and 5 may be reduced from the 90 inch value specified in Figures 3.1.7-1 and 3.1.7-2 provided that each ofthe following conditions are satisfied:

Page 8 of 25

Revision 9 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT a) Regulating Group 4 position is between 60 and 150 inches withdrawn.

b) Regulating Group 5 position is maintained at least 10 inches lower than Regulating Group 4 position.

c) Both Regulating Group 4 and Regulating Group 5 positions are maintained above the Transient Insertion Limit specified in Figure 3.1.7-1 (COLSS In Service) or Figure 3.1.7-2 (COLSS Out of Service).

3.1.8 - Part Lenuth CEA Insertion Limits The part length CEA groups shall be limited to the insertion limits shown in Figure 3.1.8-1.

3.2.1 - Linear IHeat Rate (lI IR)

The linear heat rate limit of 13.1 kW/ft shall be maintained.

3.2.3 - Azimuthal Power Tilt (Tq)

The AZIMUTIIAL POWER TILT (Tq) shall be less than or equal to 5% with COLSS IN SERVICE when power is greater than 20%.

3.2.4 - Departure From Nucleate Boiling Ratio (DNBR)

COLSS IN SERVICE and Both CEACs INOPERABLE in Any OPERABLE CPC Channel - Maintaining COLSS calculated core power less than or equal to COLSS calculated core power operation limit based on DNBR decreased by the allowance shown in Figure 3.2.4-1.

COLSS OUT OF SERVICE, CEAC(s) OPERABLE - Operating within the region of acceptable operation of Figure 3.2.4-2 using any operable CPC channel.

COLSS OUT OF SERVICE and Both CEACs INOPERABLE in AnvI OPERABLE CPC Channel - Operating within the region of acceptable operation of Figure 3.2.4-3 using any operable CPC channel with both CEACs INOPERABLE.

Page 9 of 25

Revision 9 I'VNGS UNIT 2 CORE OEIERATING LIMITS 1RE1'01T 3.2.5 - Axial Shape Index (ASI)

The core average AXIAL SIIAPE INDEX (ASI) shall be maintained within the following limits:

COLSS OPERABLE

-0.18 *ASI !1).18 for power > 50%

-0.28 < ASI < 0.18 for power < 50%

COLSS OUT OF SERVICE (CPC)

-0.10 *ASI UD.10 3.3.12 - Boron Dilution Alarm System (BDAS)

With one or both start-up channel high neutron flux alarms inoperable, the RCS boron concentration shall be determined at the applicable monitoring frequency specified in Tables 3.3.12-1 through 3.3.12-5.

3.9.1 - Boron Concentration The boron concentration of all filled portions ofthe Reactor Coolant System and the refueling canal shall be maintained at a uniform concentration 2 3000 ppm.

Page 10 of 25

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 8 FIGURE 3.1. 1-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS OPEN 7

6_......

5.

ECll"ION OF50.50 ACCEPTABLE OPERATION D

.......................... :,(0.5.0 1

REGION OF UNACCEPTABLE 2............................................"

I.....

O4 EERATION I

i (350. L) 0 100 200 300 400 500 600 COLD LEG TEMPERATURE (F)

Page I I of25

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 8 FIGURE 3.1.2-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS CLOSED 7

(5(K.6.5)

REGION OF ACCEI'TABLE.

5.

OPEZRATION.-

.2 4

z.

.(35(0.4.0) 3

_REGION OF UNACCEIPTABIIE, OPERATION l _.................................................................................

0 I(H) 200 300 400 500 6(X)

COLD LEG TEMPERATURE ('F)

Page 12 of 25

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision S FIGURE 3.1.4-1 MTC ACCEPTABLE OPERATION, MODES I AND 2 t............I0~(

0.0.--

.5 0.0 (0 z. 0

) (7 )

(50%lc,. 0.0)

-0.5

( I00%.-0.)

_-0.5................

z S

.-1.5

............ :ITC AREA 01'-F ACCI-i'TA IBL:EI 0

WI -2o _..

O 'ERATION..................................................

3

-3.5 Cd

.<-4.0 a

-3.0 s-.4 ce-4.5 0

20 30 40 50 60 70 80 90 100 CORE POWER LEVEL

(% OF RATED THERMAL POWER)

End of Cycle Limit-Beginning of Cycle Limit TECI I SPEC 3.1.4 Maximum Upper Limit........

PagOe 13 of 25

P\\'NGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 8 FIGURE 3.1.5-1 CORE POWER LIMIT AFTER CEA DEVIATION*'

30 0..

2 5................................................. _..............

25, z:

0 (60 NIN. 20.(Y..)

,--- 20 0

dO1 NIIN. ().0Si)

.I I

..... i

......... i.

........ i.......

.. i.,.........

...i............

0 10 20 30

40) 50 60)

TIME AFTER DEVIATION. MINUTES

WHEN CORE POWER IS REDUCED TO 55%7 OF RATED THERMAL POWVER P'1R TIllS LIMI1T CURVI.. I URThER. RlDUCrION IS NOT REQUIRED.

Page 1 4Of 25

PVNGS UNIT 2 CORE OPERATING LIMt ITS REPORT Rev'ision 9 FIGURE 3.1.7-1 CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS IN SERVICE)

,\\.0

m.

0.9 _

(SEI, 1"O0NO'TE IN SICTION 3-1,

F OR Al'ICABILITY, 1 '-01,1O ING o..s......:..

.A.RI'AC1...OR........

RECO CU:AK 0.7

' 5 -

GRP 4 POS = (172.51x FRAC. I lR) + 2.5 GRI 5 POS = (172.5.x FRAC. PI'1) - 64.5 0.6 z

0 0.2 z

0.H H.

0H4 0.4 0.3 C,

C '..

0.2.

.1.-.............

0.1 GROUP5 GROUP3 GROUP I 150 120 90 60 30 0

150 120 90 60 30 0

GROUP 4 GROUP 2 CEA POSITION (INCHES WITHDRAWN)

Page 15 of 25

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revisionl 9 FIGURE 3.1.7-2 CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS OUT OF SERVICE) 1.0 0.9

(.8

x 0.7 W

0 0.6 0.4 0

U F-a 0.3 0.2 0.1 0.0

....................(SIE F IOOTNOTE' IN SE'CTION 3 7-I O R A l I'i A h ~

P t 1 O' O W I NC'!

A: REIACTORZ CUTIrBACK~

z.

2.......

42

+ 9.82

.GIPIS POS (250.9 x F.AC.

.R)

- 80.18

\\

_ [,

i

\\V.

...,,.V..

z

,I J.

D s................J...................

I I

I J*.................... J*

GROUP5 GROUP3 GROUP I i

i i

I i

i i

I i

i i

i 150 120 90 60 30 0

150 120 90 60 30 0

GROUP4 GROUP 2 CO PI OSI I 6

N0 3 (0 C WIT DR AO 9

0 0

CEA POSITION (INtCHES WITHDRAWVN Page 16 of 25

P\\'NGS UNIT 2 CORE OPERATING LIMITS REPORT Rc FIGURE 3.1.8-1 PART LENGTH CEA INSERTION LIMITS VERSUS THERMAL POWER Avision 8 VA) 10.0 20.0 30.0) 40.0 a

r 50.0 v)w 60.0 Uz 70.0 C

0 7t S,,O. O 0

r-L-1 90.0 U

(

I ((.(

z E-'

110.0 120.0 130.0 140.0 150.

l.

.l.....

TRANSIENT INSERTION LIMIT (75. OINCHIS

.L:J.

'OPERATION....

OPERATION

.. I.............. _...

LONG TERMSTEAADYSSTATE IINSERTIONLIMITS(112.5 INCHES)

OPERATION ACCEPT ABLE,

~~~~~..........

1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 FRACTION OF RATED THERMAL POWER Pagc 17of25 0.2 0.1 0.0

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 9 FIGURE 3.2.4-1 COLSS DNBR OPERATING LIMIT ALLOWANCE FOR BOTH CEACs INOPERABLE IN ANY OPERABLE CPC CHANNEL 25 z0 C.)

~ _

0-

< Be z

LL '

a-0a w <

zaz V) 20 15 10 0

100 CORE POWER LEVEL

(% OF RATED THERMAL POWER)

Page 18 of25

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Revision 9 FIGURE 3.2.4-2 DNBR MARGIN OPERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, CEAC(s) OPERABLE) 2.5 2.4 2.3 I....

(-0.1.2.28)

I z

a z

c ACCEIPTABLE, O PERATION ANY PONVER LEVEL AT LEIAST I CEAC OPERABLE IN EACH OPERABLE CC CIIANNEL, (0.06',238)

(0.

. 5..

ACCE1"'TABLE, OPERATION 11.)l1IJ( AT. uR ABO..,Tr 90%

ATLIEASTII CEA~C OPERABLE IN:

EACHI OPERABLE, CPC CINNL a

0.05,2.00)

(0.

5 UNACCEPTABtLE

OPERATION.

I 1I,2;00).....

2.1 2.0 _............................

(-0.1.1.93) 1.9 I

1.8

-O..

. 1..

!0

-0. 15

-0.10

-0.05 0.00

(.05 CORE AVERAGE ASI 0.10 0.15 0.20 Page 19 of 25

PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Rcvision 9 FIGURE 3.2.4-3 DNBR MARGIN OPERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, BOTH CEACs INOPERABLE IN ANY OPERABLE CPC CHANNEL) 3.6 3.5 3.4 TTT I....I....

I TTII ACCE1PTA BLE: O PERATI ON AN'% ]POWVER LEVTE L B1OTI1H CE'ACs INOPIEI'RAZ.BLE IN ANY OPlERAB1LE CPC CHANNEL

............. ' ' /()(j...)'

10.!.--.i

1.3.27' z

E 2

2 O->

u 3.3

( -0.

3.2 3.1 A

UNACCEIPT'lAtILI:...

I...............................-

OP'ERZATION

-A i

-0.20

-0.15

-0.10

-0.05 0.00 0.05 CORE AVERAGE AS1 0.1(

0.15 0.20 Page 20 of 25

Revision 8 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Table 3.3.12-1 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff > 0.98 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 4& 5 on SCS ONA ONA ONA ONA Notes:SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 21 of 25

Revision 8 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Table 3.3.12-2 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR 0.98 2 Kefr> 0.97 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 1 hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA Notes:SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 22 of 25

Revision 8 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Table 3.3.12-3 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR 0.97 2 Keff> 0.96 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months I hour ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1 hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months I hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months I hour ONA ONA Notes:SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 23 of 25

Revision 8 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Table 3.3.12-4 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR 0.96 Ž Keff> 0.95 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 3 hours I hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 3.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 3.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA Notes:SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 24 of 25

Revision 8 PVNGS UNIT 2 CORE OPERATING LIMITS REPORT Table 3.3.12-5 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Kceff0.95 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 4 hours 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months I hour 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 4.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 2 hours I hour 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 4.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 2 hours I hour 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 2 hours 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months ONA 6

24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA Notes:SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 25 of 25 Core Operating Limits Reports for PVNGS Unit 3-Revision 12

Revision 12 PVNGS UNIT 3 CORE OPERATING LIMITS REPORT CORE OPERATING LIMITS REPORT PALO VERDE NUCLEAR GENERATING STATION (PVNGS)

UNIT 3 Revision 12 I

Responsible Engineer Digitally signed by: Hwang, Lun-Chih Date (ZO16668)

Date: 04/09/2004 14:42:08 Reason: I am the author of this document Location: PVNGS' Independent Reviewer Digitally signed by: Trimble, Patrick Date C(Z95337)

Date: 04109/2004 16:20:32 Reason: I have reviewed this document Location: PVNGS Responsible Section Leader Digitally signed by: Cannon, Thomas Date C(Z20485)

Date: 04/09/2004 16:31:19 Reason: I am approving this document Location: PVNGS Page 1 of 25

Revision 12 PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Table of Contents Description Revision#

Page Cover Page 12 1

Table of Contents 12 2

List of Figures 12 3

List of Tables 11 4

Affected Technical Specifications 11 5

Analytical Methods 12 6

12 7

CORE Operating Limits 3.1.1 Shutdown Margin (SDM) - Reactor Trip Breakers Open 12 8

3.1.2 Shutdown Margin (SDM) - Reactor Trip Breakers Closed 12 8

3.1.4 Moderator Temperature Coefficient (MTC) 12 8

3.1.5 Control Element Assembly (CEA) Alignment 12 8

3.1.7 Regulating CEA Insertion Limits 12 8

3.1.8 Part Length CEA Insertion Limits 12 9

3.2.1 Linear Heat Rate (LHR) 12 9

3.2.3 Azimuthal Power Tilt (Tq) 12 9

3.2.4 Departure From Nucleate Boiling Ratio (DNBR) 12 9

3.2.5 Axial Shape Index (ASI) 11 10 3.3.12 Boron Dilution Alarm System (BDAS) 11 10 3.9.1 Boron Concentration 11 10 Page 2 of 25

Revision 12 PVNGS UNIT 3 CORE OPERATING LIMITS REPORT List of Figures Description Revision #

Page Figure 3.1.1-1 Shutdown Margin Versus Cold Leg Temperature 11 11 Reactor Trip Breakers Open Figure 3.1.2-1 Shutdown Margin Versus Cold Leg Temperature 11 12 Reactor Trip Breakers Closed Figure 3.1.4-1 MTC Acceptable Operation, Modes I and 2 11 13 Figure 3.1.5-1 Core Power Limit After CEA Deviation 11 14 Figure 3.1.7-1 CEA Insertion Limits Versus Thermal Power 12 15 (COLSS in Service)

Figure 3.1.7-2 CEA Insertion Limits Versus Thermal Power 12 16 (COLSS Out of Service)

Figure 3.1.8-1 Part Length CEA Insertion Limits Versus Thermal Power 11 17 Figure 3.2.4-1 COLSS DNBR Operating Limit Allowance for Both 11 18 CEACs Inoperable Figure 3.2.4-2 DNBR Margin Operating Limit Based on the Core 11 19 Protection Calculators (COLSS Out of Service, CEACs Operable)

Figure 3.2.4-3 DNBR Margin Operating Limit Based on the Core 11 20 Protection Calculators (COLSS Out of Service, CEACs Inoperable)

Page 3 of 25

Revision II PVNGS UNIT 3 CORE OPERATING LIMITS REPORT List of Tables Description Revision #

Page Table 3.3.12-1 Required Monitoring Frequencies for Backup Boron 11 21 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for KefVh 0.98 Table 3.3.12-2 Required Monitoring Frequencies for Backup Boron 11 22 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.98 > Keff> 0.97 Table 3.3.12-3 Required Monitoring Frequencies for Backup Boron 11 23 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.97 > Keff > 0.96 Table 3.3.12-4 Required Monitoring Frequencies for Backup Boron I 1 24 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for 0.96 > Keff > 0.95 Table 3.3.12-5 Required Monitoring Frequencies for Backup Boron 11 25 Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff < 0.95 Page 4 of 25

Revision II PVNGS UNIT 3 CORE OPERATING LIMITS REPORT This Report has been prepared in accordance with the requirements of Technical Specification 5.6.5. The Core Operating Limits have been developed using the NRC approved methodologies specified in Section 5.6.5 b of the Palo Verde Unit 3 Technical Specifications.

AFFECTED PVNGS TECHNICAL SPECIFICATIONS 3.1.1 Shutdown Margin (SDM) - Reactor Trip Breakers Open 3.1.2 Shutdown Margin (SDM) - Reactor Trip Breakers Closed 3.1.4 Moderator Temperature Coefficient (MTC) 3.1.5 Control Element Assembly (CEA) Alignment 3.1.7 Regulating CEA Insertion Limits 3.1.8 Part Length CEA Insertion Limits 3.2.1 Linear Heat Rate (LHR) 3.2.3 Azimuthal Power Tilt (Tq) 3.2.4 Departure From Nucleate Boiling Ratio (DNBR) 3.2.5 Axial Shape Index (ASI) 3.3.12 Boron Dilution Alarm System (BDAS) 3.9.1 Boron Concentration Page 5 of 25

Revision 12 PVNGS UNIT 3 CORE OPERATING LIMITS REPORT ANALYTICAL METHODS The analytical methods used to determine the core operating limits shall be those previously reviewed and approved by the NRC, specifically those described in the following documents:

Title Report No.

Rev Date Supplement

1) CE Method for Control Element Assembly Ejection Analysis (13-NOOI-1301-01204-1)

2) The ROCS and DIT Computer Codes for Nuclear Design (13-N001-1900-01412-0)

CENPD-0190-A CENPD-266-P-A N.A.

January 1976 N.A.

I N.A.

April 1983 N.A.

I

3) Modified Statistical Combination of Uncertainties (13-NOO1-1303-01747-2)

4) System 80TM Inlet Flow Distribu-tion (13-NOO1-1301-01228-0)

5) Calculative Methods for the CE Large Break LOCA Evaluation Model for the Analysis of CE and W Designed NSSS (13-N001-1900-01192-3)

CEN-356(V)-P-A 01-P-A (ARI)

May 1988 (April 1996)

N.A.

I Enclosure 1-P to LD-82-054 CENPD-132 N.A.

February 1993 N.A.

March 2001 I-P I

4-P-A

6) Calculative Methods for the CE Small Break LOCA Evaluation Model (13-NOOI-1900-01185-3)

7) Fuel Rod Maximum Allowable Pressure (1 3-NOOI-0201-00026-1)

8) Arizona Public Service Com-pany PWR Reactor Physics Meth-odology Using CASMO-4/

SIMULATE-3 (NFM002)

CENPD-137-P CEN-372-P-A N.A.

N.A.

April 1998 May 1990 September 1999 2-P-A I

N.A.

I I

N.A.

I Page 6 of 25

Revision 12 PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Title

9) Technical Manual for the CENTS Code (13-NOOI-1303-02349-1 for Vol. 1 13-NOO1-1303-02348-1 forVol.2 13-NOOI-1303-02376-1 for vol. 3 13-NOO1-1303-02375-1 for Supple-ment 1)

10) Implementation of ZIRLOTM Cladding Material in CE Nuclear Power Fuel Assembly Designs (13-N00I-1900-01329-0)

Report No.

CE-NPD 282-P-A Vols. 1-3 Rev N.A.

Date June 1993 Supplement I

CENPD-404-P-A 0

November 2001 N.A.

I Page 7 of 25

Revision 12 PVNGS UNIT 3 CORE OPERATING LIMITS REPORT The cycle-specific operating limits for the specifications listed are presented below.

3. 1.1 - Shutdown Margin (SDM) - Reactor Trip Breakers Open The Shutdown Margin shall be greater than or equal to that shown in Figure 3.1.1-1.

3.1.2 - Shutdown Margin (SDM) - Reactor Trip Breakers Closed The Shutdown Margin shall be greater than or equal to that shown in Figure 3.1.2-1.

3.1.4 - Moderator Temperature Coefficient (MTC)

The moderator temperature coefficient (MTC) shall be within the area of Acceptable Operation shown in Figure 3.1.4-1.

3.1.5 - Control Element Assembly (CEA) Alignment With one or more full-strength or part-length CEAs misaligned from any other CEAs in its group by more than 6.6 inches, the minimum required MODES I and 2 core power reduction is specified in Figure 3.1.5-1.

3.1.7 - Regulating CEA Insertion Limits One or more CEACs OPERABLE: With COLSS IN SERVICE, regulating CEA groups shall be limited to the withdrawal sequence and to the insertion limits shown in Figure 3.1.7-12; with COLSS OUT OF SERVICE, regulation CEA groups shall be limited to the withdrawal sequence and to the insertion limits shown in Figure 3.1.7-2.2 I A reactor power cutback will cause either (Case I) Regulating Group 5 or Regulating Group 4 and 5 to be dropped with no sequential insertion of additional Regulating Groups (Groups 1, 2, 3, and 4) or (Case 2) Regulating Group 5 or Regulating Group 4 and 5 to be dropped with all or part of the remaining Regulating Groups (Groups 1, 2, 3, and 4) being sequentially inserted. In either case, the Transient Insertion Limit and withdrawal sequence specified in the CORE OPERATING LIMITS REPORT can be exceeded for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months .

2 The Separation between Regulating Groups 4 and 5 may be reduced from the 90 inch value specified in Figures 3.1.7-1 and 3.1.7-2 provided that each of the following conditions are satisfied:

Page 8 of 25

Revision 12 PVNGS UNIT 3 CORE OPERATING LIMITS REPORT a) Regulating Group 4 position is between 60 and 150 inches withdrawn.

b) Regulating Group 5 position is maintained at least 10 inches lower than Regulating Group 4 position.

c) Both Regulating Group 4 and Regulating Group 5 positions are maintained above the Transient Insertion Limit specified in Figure 3.1.7-1 (COLSS In Service) or Figure 3.1.7-2 (COLSS Out of Service).

3.1.8 - Part Length CEA Insertion Limits One or more CEACs OPERABLE: The part length CEA groups shall be limited to the insertion limits shown in Figure 3.1.8-1.

3.2.1 - Linear Heat Rate (LHR)

The linear heat rate limit of 13.1 kW/ft shall be maintained.

3.2.3 - Azimuthal Power Tilt (Tg)

The AZIMUTHAL POWER TILT (Tq) shall be less than or equal to 5% with COLSS IN SERVICE when power is greater than 20%.

3.2.4 - Departure From Nucleate Boiling Ratio (DNBR)

COLSS IN SERVICE and Both CEACs INOPERABLE - Maintaining COLSS calculated core power less than or equal to COLSS calculated core power operation limit based on DNBR decreased by the allowance shown in Figure 3.2.4-1.

COLSS OUT OF SERVICE and Either One or Both CEACs are OPERABLE -

Operating within the region of acceptable operation of Figure 3.2.4-2 using any operable CPC channel.

COLSS OUT OF SERVICE and CEACs INOPERABLE - Operating within the region of acceptable operation of Figure 3.2.4-3 using any operable CPC channel.

Page 9 of 25

Revision II PVINGS UNIT 3 CORE OPERATING LIMITS REPORT 3.2.5 - Axial Shape Index (ASI)

The core average AXIAL SHAPE INDEX (ASI) shall be maintained within the following limits:

COLSS OPERABLE

-0.18 *XSI M.18 for power> 50%

-0.28 < ASI < 0.18 for power < 50%

COLSS OUT OF SERVICE (CPC)

-0.10 !ASI 5D.10 3.3.12 - Boron Dilution Alarm System (BDAS)

With one or both start-up channel high neutron flux alarms inoperable, the RCS boron concentration shall be determined at the applicable monitoring frequency specified in Tables 3.3.12-1 through 3.3.12-5.

3.9.1 - Boron Concentration The boron concentration of all filled portions of the Reactor Coolant System and the refueling canal shall be maintained at a uniform concentration 2 3000 ppm.

Page 10 of 25

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision I I FIGURE 3.1.1-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS OPEN 7

6 5

z z

0K Lin 7

REGION OF ACCEPTABLE OPERATION 4

3

........ X.500,5.0) 2 1

0 REGION OF UNACCEPTABLE OPERATION

~(350,1.0) t.j.J,.1.

0 100 200 300 400 500 600 COLD LEG TEMPERATURE (°F)

Page 11 of 25

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 1I1 FIGURE 3.1.2-1 SHUTDOWN MARGIN VERSUS COLD LEG TEMPERATURE REACTOR TRIP BREAKERS CLOSED 7

6 5

'-4 I

U3 v)

(500,6.5):

I.........

REGION OF ACCEPTABLI

- OPERATION-(350,4.0)

REGION OF UNACCEPTABLE P.......................

E OPERATION 2

0 0

100 200 300 400 500 600 COLD LEG TEMPERATURE ('F)

Page 12 of 25

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 1I1 0.5 0.0 C

0~

F-z U

LE LL.

w 0U w

0 0

-0.5

-1.0

-1.5

-2.0

-2.5

-3.0

-3.5 FIGURE 3.1.4-1 MTC ACCEPTABLE OPERATION, MODES 1 AND 2

-0%,0.5)

...........................(10 0

(5,a 0.0

naaaaa aS%

O a a----

1---'.-

(100%,O.

......... MTC-AREAO6F-----.......

A CCEPTABL~E

.O.....PERATION (I000%3-4.

...L....

L..............

-4.0

-4A s

.v 0

10 20 30 40 50 60 70 80 90 100 CORE POWER LEVEL

(% OF RATED THERMAL POWER)

End of Cycle Limit Beginning of Cycle Limit TECH SPEC 3.1.4 Maximum Upper Limit Page 13 of 25 ama am.

a......I

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 11 FIGURE 3.1.5-1 CORE POWER LIMIT AFTER CEA DEVIATION*

3 0 1.........

I,.I 25 z

o (60 MIN,.20.0%)

P.

20 o

.(16MIN,,

20%)

0 10 20 30 40 50 60 TIME AFTER DEVIATION, MINUTES

WHEN CORE POWER IS REDUCED TO 55% OF RATED THERMAL POWER PER THIS LIMIT CURVE, FURTHER REDUCTION IS NOT REQUIRED.

Page 14 of 25

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision 12 FIGURE 3.1.7-1 CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS IN SERVICE)

I 1.0 0.9 0.8 (SEE FOOWTNOTE-IN SECTI 1OR APPLICAlBILITY FOLI

.A REACTO.R CUTO&9II).

1. )N-3

,OWING C4 3

iz W

0.7 0.6 0.5 0.4 0.3 0.

oz r0 a co vH C_ c

-Ze '

tn

0 wed E-;.

.'r E-*

00W 0

W.

w2 z.n...

GRP 5 POS = (i72.5:x FRAC. PWR) - 64.5

'RP 4 POS =-(172.Sx FRAC;PWR) + 25.5 I...

0.2 0.1 0.0

M w

X.,

... ----- -............I................,

GROUP 5 I

I I

I GROUP 3 I

I I

I GROUP I I

I I

a a

a I

I I

I 150 120 90 60 30 0

150 120 90 60 GROUP 4 I

I 30 0

150 120 90 60 GROUP 2 I

I I

30 0

150 10 ~0 6'0 3'0 6 150 120 o0 do so 6

CEA POSITION (INCHES WITHDRAWN)

Page 15 of 25

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT FIGURE 3.1.7-2 Revision 12 I

CEA INSERTION LIMITS VERSUS THERMAL POWER (COLSS OUT OF SERVICE) 1.0 0.9 0.8

.-.-(SEE FOOTNOTE-IN-SE(-TIC FOR APPLICABILITY FOLL A-REACTOR CUTBACK)

,_.. ts--- ------.....

I........I.......I..................)

iN-3;i;7 --- ----

\\

OWING 0

Px.

0w a.

0 U

0 F-0.7 0.6 0.5 0.4 0.3 F-J S. I ZI-0-0 F: l CO

&a VE E ou Z oz I

e>

U, sr a z:

. n E° o,

-):

zC

.p w

z

.z 8 0 9.82-3 - 80.18

GRP 4 PO!

50.9:

GRP S POS = (250.9 X FRAC. PWR t FRAC.;-PWR 0.2 0.1 0.0

\\

w---w-8 s

v 7

R X

D D

M i

i i

i s

j j

i i

i GROUP 5 I

I I

GROUP3 I

I I

GROUP I I

I I

I ____I I

I I

I i

I I

150 120 90 150 30 0

150 120 90 60 GROUP4 I

I I

30 0

150 120 90 60 GROUP 2 I

I I

I 30 0

I I

I 1

10 1 0 90 6o 3o0 6 0k 10 4J do go CEA POSITION (INCHES WITHDRAWN) 6 Page 16 of 25

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision I I FIGURE 3.1.8-1 PART LENGTH CEA INSERTION LIMITS VERSUS THERMAL POWER 0.0 10.0 20.0 30.0 z

t-40.0 X

0 Fn 50.0 p

60.0 u

z 170.0 z

O 1 80.0 140.

w 1 90.0 u

0 1 00.0 z

i2 110.0 1 20.0 1 30.0 140.0 1 50.0 I...........

I.... I. * *

I.......

.......I..............

-TRANSIENT INSERTION LIMIT (75.0:INCHES~

f l

OQPERA-TION.......

OPR-AT-ION UNACCEPTABLE RESTRICTED LONG TERM STEADY STATE INSERTION: LIMITS' (112.5 INCHES)

_,i,...........

OPERATION ACCEPTABLE 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 FRACTION OF RATED THERMAL POWER 0.2 0.1 0.0 Page 17 of 25

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision I 1 FIGURE 3.2.4-1 COLSS DNBR OPERATING LIMIT ALLOWANCE FOR BOTH CEAC's INOPERABLE 25 z0 0-EO v 5 CS z

cj 0Un 20 15 10 5

0 0

25 50 75 CORE POWER LEVEL

(% OF RATED THERMAL POWER) 100 Page 18 of 25

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revisib FIGURE 3.2.4-2 DNBR MARGIN OPERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, CEAC's OPERABLE) in 11 Z. D 2.4 2.3 ce.2c

lE u

CL4 u

2.2 2.1 ACCI 'TBLE OPERTN ANY POWER LIVEL MINIMUM OF 1 CEAC OPERABL (0.022.38)

(0.1,2.38)

_, ~~~~....... ---.----

'_..123 (0.054,2.03)

I ACC~pTOPLEltPERTON:

.U

,3 OWE AT R

AOVE 0%

3 1-----

0.

+-

.3 INIUM O

1 CEACOPEABI U

.,.3 a --- ----------

-.s I

-NCETIL l

t OPETABERYPiRTION

U.

.U i

3.

4 2.0 1.9 1 Q i

I

-0.20

-0.15

-0.10

-0.05 0.00 0.05 CORE AVERAGE ASI 0.10 0.15 0.20 Page 19 of 25

PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Revision I I FIGURE 3.2.4-3 DNBR MARGIN OPERATING LIMIT BASED ON THE CORE PROTECTION CALCULATORS (COLSS OUT OF SERVICE, CEAC's INOPERABLE) 3.6 3.5 3.4 1:42m

E

E u

CL4 u

3.3 ACCF:PTABLE OPERATION ANY POWER LEVEL CEAC's INOPERABLE

._,_.(0.1,3.32)

/(0.0,3 32)

YT~~~U AOCEP~'T'AT~iL

OPERATION 3.2 3.1 3.0

-0.:

.L.JL 20

-0.15

-0.10

-0.05 0.00 0.05 CORE AVERAGE ASI 0.10 0.15 0.20 Page 20 of 25

Revision 11 PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Table 3.3.12-1 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff> 0.98 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA 4&5 onSCS ONA ONA ONA ONA Notes:

SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 21 of 25

Revision 11 PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Table 3.3.12-2 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR 0.98 2 Keff> 0.97 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months I hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA Notes:

SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 22 of 25

Revision II PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Table 3.3.12-3 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR 0.97 2 Keff> 0.96 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months I hour ONA 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months I hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1 hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 1 hour ONA ONA Notes:

SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 23 of 25

Revision II PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Table 3.3.12-4 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR 0.96 2 Kef> 0.95 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 3 hours I hour 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 3.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 3.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA Notes:

SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 24 of 25

Revision II PVNGS UNIT 3 CORE OPERATING LIMITS REPORT Table 3.3.12-5 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff50.9 5 OPERATIONAL Number of Operating Charging Pumps MODE 0

1 2

3 3

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 4 hours 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 1 hour 4 not on SCS 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 4.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 2 hours 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 5 not on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 4.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 2 hours I hour 4 & 5 on SCS 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 2 hours 0.75 hours8.680556e-4 days 0.0208 hours 1.240079e-4 weeks 2.85375e-5 months ONA 6

24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ONA ONA Notes:

SCS = Shutdown Cooling System ONA = Operation Not Allowed Page 25 of 25

v t e Letter Sequence Request
TAC:MC2388, (Open)
Initiation Request, Request, Request, Request, Request Acceptance... Supplement Administration Withholding Request Acceptance Questions Answers Results Approval... Other: ML041260228, ML041320466, ML041400050, ML041910397, ML043140259
MONTHYEAR2004-05-03 [Table View]

ML041170393

Text

Dear Sirs:

Subject:

Enclosures:

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