W3F1-2002-0034, Ses Core Operating Limits Report for Cycle 12

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Ses Core Operating Limits Report for Cycle 12
ML021070425
Person / Time
Site: Waterford Entergy icon.png
Issue date: 04/04/2002
From: Peters R
Entergy Operations
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
W3F1-2002-0034
Download: ML021070425 (33)
v • d • e


Text

Entergy Operations, Inc.

17265 River Road Tel 504 739 6650 W3F1-2002-0034 A4.05 PR April 4, 2002 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555

Subject:

Waterford 3 SES Docket No. 50-382 License No. NPF-38 Core Operating Limits Report for Cycle 12 Gentlemen:

Waterford 3 Technical Specification 6.9.1.11.3 requires submittal of the Core Operating Limits Report for each reload cycle. Attached is the Waterford 3 submittal of the Core Operating Limits Report for Cycle 12.

This letter contains no commitments. If you have any questions concerning this submittal please contact P.M. Melancon at (504) 739-6614.

Very truly yours, R.D. Peters Acting, Director Nuclear Safety Assurance RDP/TMM/cbh cc: E.W. Merschoff, NRC Region IV, N. Kalyanam, NRC-NRR, J. Smith, N.S. Reynolds, NRC Resident Inspectors Office

ENTERGY OPERATIONS WATERFORD 3 CORE OPERATING LIMITS REPORT FOR CYCLE 12 REVISION 0 Prepared by: P.M. Melancon PAAk1i/0z- I Reviewed by: J.M. Manzella

&AA Approved by: J. B. Holman l

ý'41172 Safetyk'& Engineering Analysis Approved by: M. K. Brandon Licensing WATERFORD 3 Page 1 CYCLE 12 REVISION 0

WATERFORD 3 CORE OPERATING LIMITS REPORT CYCLE 12, REVISION 0 PAGE INDEX 5

I. INTRODUCTION 6

II. AFFECTED TECHNICAL SPECIFICATIONS COLR 3/4 1-1 3.1.1.1 Shutdown Margin - Any CEA Withdrawn COLR 3/4 1-3 3.1.1.2 Shutdown Margin - All CEAs Fully Inserted COLR 3/4 1-4 3.1.1.3 Moderator Temperature Coefficient COLR 3/4 1-15 3.1.2.9 Boron Dilution COLR 3/4 1-18 3.1.3.1 Movable Control Assemblies - CEA Position COLR 3/4 1-25 3.1.3.6 Regulating and Group P CEA Insertion Limits COLR 3/4 2-1 3.2.1 Linear Heat Rate COLR 3/4 2-4 3.2.3 Azimuthal Power Tilt - Tq COLR 3/4 2-6 3.2.4 DNBR Margin COLR 3/4 2-12 3.2.7 Axial Shape Index COLR 3/4 9-1 3.9.1 Boron Concentration 32 III. METHODOLOGIES Page 2 CYCLE 12 REVISION 0 WATERFORD 3

LIST OF FIGURES PAGE COLR Figure 1. Shutdown Margin Versus Cold Leg COLR 3/4 1-3A Temperature COLR Figure 2. Moderator Temperature Coefficient Versus % of COLR 3/4 1-4A Rated Thermal Power COLR Figure 3. Required Power Reduction After Single CEA COLR 3/4 1-18A Deviation COLR Figure 4. Regulating CEA Group Insertion Limits Versus COLR 3/4 1-25A Thermal Power COLR Figure 5. Group P CEA Group Insertion Limits Versus COLR 3/4 1-25B Thermal Power COLR Figure 6. Allowable Peak Linear Heat Rate Versus Tc COLR 3/4 2-1A (COLSS in Service)

COLR Figure 7. Allowable Peak Linear Heat Rate Versus Tc COLR 3/4 2-1B (COLSS Out of Service)

COLR Figure 8. Allowable DNBR with Any CEAC Operable COLR 3/4 2-6A (COLSS Out of Service)

COLR Figure 9. Allowable DNBR with No CEAC(s) Operable COLR 3/4 2-68 (COLSS Out of Service)

LIST OF EFFECTIVE FIGURE PAGES Revision 0 COLR 3/4 1-3A, 1-4A, 1-18A, 1-25A, 1-25B, 2-1A, 2-1B, 2 6A, 2-68 WATERFORD 3 Page 3 CYCLE 12 REVISION 0

LIST OF TABLES PAGE COLR Table 1. Required Monitoring Frequencies for Backup Boron COLR 3/4 1-15A Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff Greater Than 0.98.

COLR Table 2. Required Monitoring Frequencies for Backup Boron COLR 3/4 1-15B Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff Greater Than 0.97 and Less Than or Equal to 0.98.

COLR Table 3. Required Monitoring Frequencies for Backup Boron COLR 3/4 1-15C Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff Greater Than 0.96 and Less Than or Equal to 0.97.

COLR Table 4. Required Monitoring Frequencies for Backup Boron COLR 3/4 1-15D Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff Greater Than 0.95 and Less Than or Equal to 0.96.

COLR Table 5. Required Monitoring Frequencies for Backup Boron COLR 3/4 1-15E Dilution Detection as a Function of Operating Charging Pumps and Plant Operational Modes for Keff Less Than or Equal to 0.95.

LIST OF EFFECTIVE TABLE PAGES Revision 0 COLR 3/4 1-15A through COLR 3/4 1-15E WATERFORD 3 Page 4 CYCLE 12 REVISION 0

WATERFORD 3 CORE OPERATING LIMITS REPORT CYCLE 12, REVISION 0 I. INTRODUCTION This CORE OPERATING LIMITS REPORT (COLR) has been prepared in accordance with the requirements of Waterford 3 Technical Specification 6.9.1.11 for Waterford 3 Cycle 12. The core operating limits have been developed using the NRC approved methodologies specified in Section III. This is Revision 0 of the Cycle 12 COLR.

The major changes between the Cycle 12 and Cycle 11 COLR are listed below:

"* The Table of Contents and List of Figures were revised as necessary to reflect the changes for Cycle 12.

"* The titles of Sections 3.1.1.1 and 3.1.1.2 were revised in accordance with the changes made to the corresponding Technical Specifications related to the Part Length CEA replacement design change.

"* Section 3.1.1.2, Shutdown Margin-All CEAs Fully Inserted, Figure 1 was increased by 0.5 x 104 Ap/°F.

"* Section 3.1.3.1.a and 3.1.3.1.b were revised to remove the reference to part-length CEAs.

"* Section 3.1.3.6 text was revised to include the new Group P CEAs and to include a reference to Figure 5.

"* Section 3.1.3.6, Figure 4, was revised to remove Regulating CEA Group 4 and indicate Group 5 at 60" as the maximum CEA insertion.

"* Section 3.1.3.7 was deleted since part-length CEAs are being replaced with full length, full-strength CEAs.

"* Figure 5 was revised to remove reference to part-length CEAs and to provide the limits for the new CEA group, Group P.

"* Section 3.2.4, Figure 8 was revised to include a limit line for the 70% and 96% power levels and to make necessary adjustments to the other limits.

"* Section 3.2.4, Figure 9, was revised to include a limit line for the 70% power level and to make necessary adjustments to the other limits.

"* Added clarifying notes to the text of Section 3.2.4 for use with Figures 8 & 9.

"* Revised Section 111.1, 2, and 6 to add a reference to Group P CEAs in accordance with the change to Technical Specification 6.9.1.11.1 related to the Part-Length CEA replacement design change.

"* Added Section 111.7 in accordance with Technical Specification 6.9.1.11.1 related to the Part-Length CEA replacement design change.

WATERFORD 3 Page 5 CYCLE 12 REVISION 0

II. AFFECTED TECHNICAL SPECIFICATIONS WATERFORD 3 Page 6 CYCLE 12 REVISION 0

CORE OPERATING LIMITS REPORT SHUTDOWN MARGIN - ANY CEA WITHDRAWN 3.1.1.1 The SHUTDOWN MARGIN shall be greater than or equal to 5.15% Ak/k when Tavg is greater than 200 OF or 2.0% Ak/k when Tavg is less than or equal to 200 OF.

WATERFORD 3 COLR 3/4 1-1 CYCLE 12 REVISION 0

CORE OPERATING LIMITS REPORT SHUTDOWN MARGIN - ALL CEAs FULLY INSERTED 3.1.1.2 The SHUTDOWN MARGIN shall be maintained within the region of acceptable operation of COLR Figure 1.

WATERFORD 3 COLR 3/4 1-3 CYCLE 12 REVISION 0

Shutdown Margin Versus Cold Leg Temperature (All CEAs Fully Inserted) 6 5

(500 OF, 4.6%)

4 0'

3 Acceptable Operation Co U

2 ___

(400 OF, 1.5%)

II Unacceptable Operation 0

0 100 200 300 400 500 600 Cold Leg Temperature (OF)

COLR Figure 1 WATERFORD 3 COLR 3/4 1-3A CYCLE 12 REVISION 0

CORE OPERATING LIMITS REPORT MODERATOR TEMPERATURE COEFFICIENT 3.1.1.3 The Moderator Temperature Coefficient (MTC) shall be maintained within the region of acceptable operation of COLR Figure 2.

WATERFORD 3 COLR 3/4 1-4 CYCLE 12 REVISION 0

Moderator Temperature Coefficient Versus % of Rated Thermal Power 0.5 (0. 00.5) Una cceptable Operation 0.0 (100,-0.2:

-0.5

-1.0

-1.5 U.

0 C.

-2.0 x ALcceptable Operation 0

-2.5

-3.0

  • Uncceptable Operation

-3.5.

(0.0, -4.0) (100,-4.0

-4.0 - m - i U - I - I -

-4.5 30 40 50 60 0 10 20 70 80 90 100

% of Rated Thermal Power COLR Figure 2 WATERFORD 3 COLR 3/4 1-4A CYCLE 12 REVISION 0

CORE OPERATING LIMITS REPORT BORON DILUTION 3.1.2.9 See COLR Tables 1 through 5 for required RCS boron concentration monitoring frequencies and Charging Pump operation limits.

SURVEILLANCE REQUIREMENTS Each required boron dilution alarm shall be adjusted to less than or equal to twice (2x) the existing neutron flux (cps) at the following frequencies:

a. No sooner than one half hour after shutdown.
b. At least once per hour if the reactor has been shutdown < 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br />.
c. At least once per 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> if the reactor has been shut down > 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> but < 25 hours2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br />.
d. At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> if the reactor has been shut down > 25 hours2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br /> but < 21 days.
e. At least once per 7 days if the reactor has been shut down > 21 days.

WATERFORD 3 COLR 3/4 1-15 CYCLE 12 REVISION 0

COLR TABLE 1 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff GREATER THAN 0.98 Keff >0.98 OPERATIONAL Number of Operating Charging Pumps*

MODE 0 1 2 3 3 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 0.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> Operation not allowed 4 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> Operation not allowed 5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> Operation not allowed RCS filled 5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> Operation not allowed RCS partially drained 6 Operation not allowed Charging pump OPERABILITY for any period of time shall constitute OPERABILITY for the entire monitoring frequency.

    • The precluded number of charging pumps shall be verified to be inoperable by racking out their motor circuit breakers.

WATERFORD 3 COLR 3/4 1-15A CYCLE 12 REVISION 0

COLR TABLE 2 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff GREATER THAN 0.97 AND LESS THAN OR EQUAL TO 0.98 0.98 _>Keff >0.97 OPERATIONAL Number of Operating Chargqinq Pumps*

MODE 0 1 2 3 3 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 2.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 0.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> Operation not allowed" 4 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 0.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> Operation not allowed**

5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 0.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> Operation not allowed**

RCS filled 5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 0.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> Operation not allowed**

RCS partially drained 6 Operation not allowed**

Charging pump OPERABILITY for any period of time shall constitute OPERABILITY for the entire monitoring frequency.

The precluded number of charging pumps shall be verified to be inoperable by racking out their motor circuit breakers.

WATERFORD 3 COLR 3/4 1-15B CYCLE 12 REVISION 0

COLR TABLE 3 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff GREATER THAN 0.96 AND LESS THAN OR EQUAL TO 0.97 0.97 Ž Keff >0. 9 6 OPERATIONAL Number of Operating Charging Pumps*

MODE 0 1 2 3 3 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 3.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 1.25 hours2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br /> 0.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> 4 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 1.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> Operation not allowed"*

5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 1.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> Operation not allowed" RCS filled 5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 0.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> Operation not allowed**

RCS partially drained 6 Operation not allowed" Charging pump OPERABILITY for any period of time shall constitute OPERABILITY for the entire monitoring frequency.

    • The precluded number of charging pumps shall be verified to be inoperable by racking out their motor circuit breakers.

WATERFORD 3 COLR 3/4 1-15C CYCLE 12 REVISION 0

COLR TABLE 4 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff GREATER THAN 0.95 AND LESS THAN OR EQUAL TO 0.96 0.96 _>Keff >0.95 OPERATIONAL Number of Operating Charqinq Pumps*

MODE 0 1 2 3 3 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 4.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 2.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 1.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 4 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 2.25 hours2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br /> 0.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> Operation not allowed**

5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 2.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 0.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> Operation not allowed**

RCS filled 5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 2.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 0.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> Operation not allowed**

RCS partially drained 6 Operation not allowed**

Charging pump OPERABILITY for any period of time shall constitute OPERABILITY for the entire monitoring frequency.

The precluded number of charging pumps shall be verified to be inoperable by racking out their motor circuit breakers.

WATERFORD 3 COLR 3/4 1-15D CYCLE 12 REVISION 0

COLR TABLE 5 REQUIRED MONITORING FREQUENCIES FOR BACKUP BORON DILUTION DETECTION AS A FUNCTION OF OPERATING CHARGING PUMPS AND PLANT OPERATIONAL MODES FOR Keff LESS THAN OR EQUAL TO 0.95 Keff *0.95 OPERATIONAL Number of Operating Charging Pumps*

MODE 0 1 2 3 3 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 5.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 2.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 1.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 4 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 2.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> 1.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> Operation not allowed**

5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 3.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 1.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> 0.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> RCS filled 5 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 2.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> 0.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> Operation not allowed**

RCS partially drained 6 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 2.25 hours2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br /> 0.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> Operation not allowed**

  • Charging pump OPERABILITY for any period of time shall constitute OPERABILITY for the entire monitoring frequency.
    • The precluded number of charging pumps shall be verified to be inoperable by racking out their motor circuit breakers.

WATERFORD 3 COLR 3/4 1-15E CYCLE 12 REVISION 0

CORE OPERATING LIMITS REPORT MOVABLE CONTROL ASSEMBLIES - CEA POSITION 3.1.3.1.a With one CEA trippable but misaligned from any other CEA in its group by more than 19 inches, operation in MODES 1 and 2 may continue, provided that core power is reduced in accordance with COLR Figure 3.

3.1.3.1.b With one or more CEAs trippable but misaligned from any other CEAs in its group by more than 7 inches but less than or equal to 19 inches, operation in MODES 1 and 2 may continue, provided that core power is reduced in accordance with COLR Figure 3.

WATERFORD 3 COLR 3/4 1-18 CYCLE 12 REVISION 0

Required Power Reduction After Single CEA Deviation 30 I..

&25 0

20 1.R 40 E

0

_ 15

.02 0

M 0

I.

E

=

E 5 0

0 15 30 45 60 Time After CEA Deviation (Minutes)

COLR Figure 3

  • When thermal power is reduced to 60% of rated thermal power per this limit curve, further reduction is not required by this technical specification.

WATERFORD 3 COLR 3/4 1-18A CYCLE 12 REVISION 0

CORE OPERATING LIMITS REPORT REGULATING AND GROUP P CEA INSERTION LIMITS 3.1.3.6 The regulating CEA groups and Group P CEAs shall be limited to the withdrawal sequence and to the insertion limits shown on COLR Figure 4 (regulating groups) and Figure 5 (Group P).

WATERFORD 3 COLR 3/4 1-25 CYCLE 12 REVISION 0

Regulating CEA Group Insertion Limits Versus Thermal Power 108" GR.

100 90 80 70 60 0) 50 C;

40 I-30 20 10 0

I I I Group 6 1 I Group 5 0 30 60 90 120 150 L I 6 0 30 60 90 120 150 Regulating CEA Group Position (Inches)

COLR Figure 4 WATERFORD 3 COLR 3/4 1-25A CYCLE 12 REVISION 0

Group P CEA Group Insertion Limits Versus Thermal Power 108" 120" 100 90 80 70 60 0

50 E

I, 40 r

I-30 20 10 0

0 15 30 45 60 75 90 105 120 135 150 Group P CEA Group Position (Inches)

COLR Figure 5 WATERFORD 3 COLR 3/4 1-25B CYCLE 12 REVISION 0

CORE OPERATING LIMITS REPORT LINEAR HEAT RATE 3.2.1 The linear heat rate shall be maintained:

a. Within the region of acceptable operation of COLR Figure 6, when COLSS is in service.
b. Within the region of acceptable operation of COLR Figure 7, when COLSS is out of service.

WATERFORD 3 COLR 3/4 2-1 CYCLE 12 REVISION 0

Allowable Peak Linear Heat Rate Versus Tc (COLSS in Service) 13.1 13.0 (12.9 kw/ft @ 557.5 °F) 12.9 Unacceptable Operation 0

12.8 (U

e 0

c 12.7 I

C9

°D (U

IL Z 0 Acceptable Operation 0.

12.6 (12.6 kw/ft @ 520 OF) 12.5 12.4 510 515 520 525 530 535 540 545 550 555 560 Initial Core Coolant Inlet Temperature (OF)

COLR Figure 6 WATERFORD 3 COLR 3/4 2-1A CYCLE 12 REVISION 0

Allowable Peak Linear Heat Rate Versus Tc (COLSS Out of Service) 13.4 13.3 I I- I- I- t I (13.2 kwlft @ 557.5 °F) 13.2 Unacceptable Operation c

." 13.1 0

0 (L

0 C.L 72 C"

I, ca 0

  • " 13.0 O.6 C Acceptable Operation 12.9 (12.9 kw/ft @ 520 OF) 12.8 12.7 510 515 520 525 530 535 540 545 550 555 560 Initial Core Coolant Inlet Temperature (OF)

COLR Figure 7 WATERFORD 3 COLR 3/4 2-1 B CYCLE 12 REVISION 0

CORE OPERATING LIMITS REPORT AZIMUTHAL POWER TILT- Tq 3.2.3 The measured AZIMUTHAL POWER TILT shall be maintained < 0.03.

WATERFORD 3 COLR 3/4 2-4 CYCLE 12 REVISION 0

CORE OPERATING LIMITS REPORT DNBR MARGIN 3.2.4 The DNBR margin shall be maintained by one of the following methods:

a) When COLSS is in service and neither CEAC is operable: maintain COLSS calculated core power less than or equal to COLSS calculated core power operating limit based on DNBR decreased by 13% RATED THERMAL POWER.

b) When COLSS is out of service and at least one CEAC is operable: operate within the region of acceptable operation shown on COLR Figure 8, using any operable CPC channel.

c) When COLSS is out of service and neither CEAC is operable: operate within the region of acceptable operation shown on COLR Figure 9, using any operable CPC channel.

NOTES

1. The five DNBR limit lines shown between the vertical ASI limit lines drawn at -0.17 and 0.22 on Figures 8 and 9 represent the minimum DNBR value required for operation in the power range displayed in the area above each line. Operation at lower power levels requires that a larger DNBR value be maintained. For example, with ASI equal to -0.17 and a core power of 85%, CPC calculated DNBR must be minimum of 2.22. At 79% power and the same ASI value, the calculated DNBR must be at least 2.64. At 65% power and the same ASI value, DNBR must be a minimum of 3.64.
2. The vertical ASI limit lines shown at -0.17 and 0.22 on Figures 8 and 9 may be considered as extending beyond the maximum DNBR value of 4.6 shown on the charts.

Therefore, when monitoring DNBR with these Figures, compliance is achieved at all power levels if the CPC-calculated DNBR is greater than 4.6.

WATERFORD 3 COLR 3/4 2-6 CYCLE 12 REVISION 0

Allowable DNBR with Any CEAC Operable (COLSS Out of Service) 4.6 4.6 4.4 4.4 Acceptable Operation 4.2 (0% < Power< 100%) 4.2 4.0 (0.00, 3.94) 4 (0.22, 3.94) 3.8 3.8 3.6 (-0.17,3.64) 3.6 W 3.4 m 3.4 z Acceptable Operation a ( 70% < Power_< 100% 3 E= 3.2- - 3.2 E

.E- 3.0-o 30 (0.07, 2.88) oJ (0.22, 2.88)

S2.8 2.8 2.6 (-0.17, 2.64) Acceptable Operation 2.6

( 80% <Power< 100% ) (0.07, 2.39) 2.4 (0.22,2.39) 2.4 Acceptable Operation (0.14,2.15) 2.2 (-0.17, 2.22) ( 90% < Power <.100%) (0.22, 2.15) 2.2 Op rto ( 96% <Power 100% )

2.0 (-0.17, 1.99) Acceptable (0.15, 2.03) (0.22, 2.03) 2

(-0.17, 1.90) 1.8 1.8 Unacceptable Operation 1.6 . ............ ........... I.,.,.,.,.1.6

-0.3 -0.2 -0.1 0 0.1 0.2 0.3 Core Average ASI COLR Figure 8 WATEERFORD 3 COLR 3/4 2-6A CYCLE 12 REVISION 0

Allowable DNBR with No CEAC(s) Operable (COLSS Out of Service) 4.6 4.6 4.4 Acceptable Operation -4.4 (0% < Power< 100%)

4.2 (0.22, 4.19) -4.2 (0.00, 4.19) 4.0. -4.0

(-0.17,3.86) 3.8. -3.8 3.6. -3.6 Acceptable Operation -3.4 3.4 z (70% < Power< 100%)

0 E 3.2 **,.*('04, 3.-18) (0.22, 3.18)

-3.2 E

F_

3.0 -3.0 S (-0.17, 2.92)

C.,

IL -2.8 C-) 2.8.

Acceptable Operation (90% < Power< 100%)

2.6 -2.6

,(0.08, 2.51) (0.22, 2.51) -2.4 2.4-(-0.17, 2.32) 2.2+ -2.2 Unacceptable Operation 2.0+/- 2.0 1.8+ 1.8 IR . I

. . . . . . . 1.6

-0.3 -0.2 -0.1 0 0.1 0.2 0.3 Core Average ASI COLR Figure 9 WATERFORD 3 COLR 3/4 2-613 CYCLE 12 Revision 0

CORE OPERATING LIMITS REPORT AXIAL SHAPE INDEX 3.2.7 The AXIAL SHAPE INDEX (ASI) shall be maintained within the following limits:

COLSS Operable

-0.22*__ ASI __+0.26 for THERMAL POWERS Ž> 70% of RATED THERMAL POWER

-0.26 __ASI < +0.26 for THERMAL POWERS from 20% to 70% of RATED THERMAL POWER COLSS Out of Service

-0.17

  • ASI < +0.22 for THERMAL POWERS from 20% to 100% of RATED THERMAL POWER WATERFORD 3 COLR 3/4 2-12 CYCLE 12 REVISION 0

CORE OPERATING LIMITS REPORT BORON CONCENTRATION 3.9.1 While in Mode 6, the RCS boron concentration shall be maintained sufficiently to ensure that the more restrictive of the following reactivity conditions is met:

a. Either Keff of 0.95 or less, or
b. A boron concentration of greater than or equal to 2050 ppm.

WATERFORD 3 COLR 3/4 9-1 CYCLE 12 REVISION 0

III. METHODOLOGIES The analytical methods used to determine the core operating limits listed above are those previously reviewed and approved by the NRC in:

1. "The ROCS and DIT Computer Codes for Nuclear Design," CENPD-266-P-A, April 1983; and "C-E Methodology for Core Designs Containing Gadolinia-Urania Burnable Absorber," CENPD-275-P-A, May 1988. (Methodology for Specifications 3.1.1.1 and 3.1.1.2 for Shutdown Margins, 3.1.1.3 for MTC, 3.1.3.6 for Regulating and Group P CEA Insertion Limits, 3.1.2.9 Boron Dilution (Calculation of CBC &

IBW), and 3.9.1 Boron Concentration).

2. "C-E Method for Control Element Assembly Ejection Analysis," CENPD-01 90-A, January 1976. (Methodology for Specification 3.1.3.6 for Regulating and Group P CEA Insertion Limits and 3.2.3 for Azimuthal Power Tilt).
3. "Modified Statistical Combination of Uncertainties" CEN-356(V)-P-A, May 1988.

(Methodology for Specification 3.2.4 for DNBR Margin and 3.2.7 for ASI).

4. "Calculative Methods for the CE Large Break LOCA Evaluation Model For The Analysis of C-E and W Designed NSSS," CENPD-1 32, Supplement 3-P-A, June 1985. (Methodology for Specification 3.1.1.3 for MTC, 3.2.1 for Linear Heat Rate, 3.2.3 for Azimuthal Power Tilt and 3.2.7 for ASI).
5. "Calculative Methods for the ABB CE Small Break LOCA Evaluation Model,"

CENPD-1 37-P, August 1974: Supplement 2-P-A, April 1998. (Methodology for Specification 3.1.1.3 for MTC, 3.2.1 for Linear Heat Rate, 3.2.3 for Azimuthal Power Tilt and 3.2.7 for ASI).

6. "CESEC - Digital Simulation of a Combustion Engineering Nuclear Steam Supply System", CENPD-1 07, December 1981. (Methodology for Specification 3.1 1.1 and 3.1.1.2 for Shutdown Margins, 3.1.1.3 for MTC, 3.1.3.1 for Movable Control Assemblies - CEA Position, 3.1.3.6 for Regulating and Group P CEA Insertion Limits, and 3.2.3 for Azimuthal Power Tilt).
7. "Qualification of Reactor Physics Methods for the Pressurized Water Reactors of the Entergy System," ENEAD-01 -P, Revision 0. (Methodology for Specifications 3.1.1.1 and 3.1.1.2 for Shutdown Margins, 3.1.1.3 for MTC, 3.1.3.6 for Regulating and Group P CEA Insertion Limits, 3.1.2.9 Boron Dilution (calculation of CBC &

IBW), and 3.9.1 Boron Concentration).

WATERFORD 3 Page 32 CYCLE 12 REVISION 0

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