1CAN050701, Arkansas - Unit 1 - Cycle 21 Core Operating Limits Report

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Arkansas - Unit 1 - Cycle 21 Core Operating Limits Report
ML071240117
Person / Time
Site: Arkansas Nuclear Entergy icon.png
Issue date: 05/01/2007
From: James D
Entergy Operations
To:
Document Control Desk, NRC/NRR/ADRO
References
1CAN050701, BAW-10179P-A CALC-ANO1-NE-2006-00007
Download: ML071240117 (37)
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Text

Entergy Operations, Inc.

'ýEnterýV1448 S.R. 333 Russellville, AR 72802 Tel 479-858-4619 Dale E. James Manager, Licensing Nuclear Safety Assurance 1CAN050701 May 1, 2007 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Subject:

ANO-1 Cycle 21 COLR Arkansas Nuclear One - Unit 1 Docket No. 50-313 License No. DPR-51

Dear Sir or Madam:

Arkansas Nuclear One - Unit 1 (ANO-1) Technical Specification 5.6.5 requires the submittal of the Core Operating Limits Report (COLR) for each reload cycle. Attached is Revision 0 of the ANO-1 Cycle 21 COLR. Please note that the approved revision number of the Babcock and Wilcox Topical Report BAW-10179P-A is identified in the COLR as Revision 6, August 2005. In addition, the approved revision number of the Entergy Reactor Physics Methods Report is identified in the COLR as Revision 0, December 1993. This completes the reporting requirement for the referenced specification. This submittal contains no commitments. Should you have any questions, please contact David Bice at 479-858-5338.

Sincerely,

?Dale

/.James D /dbb

Attachment:

ANO-1 Cycle 21 Core Operating Limits Report (COLR)

1CAN050701 Page 2 of 2 cc: Dr. Bruce S. Mallett Regional Administrator U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-8064 NRC Senior Resident Inspector Arkansas Nuclear One P. 0. Box 310 London, AR 72847 U. S. Nuclear Regulatory Commission Attn: Ms. Farideh E. Saba MS 0-8 B1 Washington, DC 20555-0001 Mr. Bernard R. Bevill Director Division of Radiation Control and Emergency Management Arkansas Department of Health and Human Services P. 0. Box 1437 Slot H-30 Little Rock, AR 72203-1437

Attachment 1 1CAN050701 ANO-1 Cycle 21 Core Operating Limits Report (COLR)

CALC-ANO1 -NE-2006-00007 ENTERGY OPERATIONS ARKANSAS NUCLEAR ONE UNIT ONE CYCLE 21 CORE OPERATING LIMITS REPORT ANO-1 1 Rev. 0

CALC-ANO 1-NE-2006-00007 1.0 CORE OPERATING LIMITS This Core Operating Limits Report for ANO-1 Cycle 20 has been prepared in accordance with the requirements of Technical Specification 5.6.5. The core operating limits have been developed using the methodology provided in the references.

The following cycle-specific core operating limits are included in this report:

1) 2.1.1 Variable Low RCS Pressure - Temperature Protective Limits,
2) 3.1.1 SHUTDOWN MARGIN (SDM),
3) 3.1.8 PHYSICS TESTS Exceptions - MODE 1,
4) 3.1.9 PHYSICS TEST Exceptions - MODE 2,
5) 3.2.1 Regulating Rod Insertion Limits,
6) 3.2.2 AXIAL POWER SHAPING RODS (APSR) Insertion Limits,
7) 3.2.3 AXIAL POWER IMBALANCE Operating Limits,
8) 3.2.4 QUADRANT POWER TILT (QPT),
9) 3.2.5 Power Peaking,
10) 3.3.1 Reactor Protection System (RPS) Instrumentation,
11) 3.4.1 RCS Pressure, Temperature, and Flow DNB limits,
12) 3.4.4 RCS Loops - MODES 1 and 2, and
13) 3.9.1 Boron Concentration.

2.0 REFERENCES

1. "Safety Criteria and Methodology for Acceptable Cycle Reload Analysis,"

BAW-10179P-A, Rev. 6, Framatome ANP, Lynchburg, Virginia, August 2005.

2. Letter dated 4/9/02 from L.W. Barnett, USNRC, to J.M. Mallay, FRA-ANP, "Safety Evaluation of Framatome Technologies Topical Report BAW-10164P Revision 4,

'RELAP5/MOD2- B&W, An Advanced Computer Program for Light Water Reactor LOCA and Non-LOCA Transient Analysis' (TAC Nos. MA8465 and MA8468)," USNRC ADAMS Accession Number ML013390204.

3. RELAP5/MOD2-B&W - An Advanced Computer Program for Light Water Reactor LOCA Transient Analysis, BAW-10164P, Rev. 4, Framatome Technologies, Inc.,

Lynchburg, Virginia, September 1999.

4. "Qualification of Reactor Physics Methods for the Pressurized Water Reactors of the Entergy System," ENEAD-01-P, Rev. 0, Entergy Operations, Inc., Jackson, Mississippi, December 1993.
5. "ANO-1 Cycle 21 Limits and Setpoints," Areva Doc. No. 86-9027031-000, December 21, 2006.
6. "Arkansas Nuclear One, Unit 1, Cycle 21 Reload Report," ANP-2603, Rev. 0, Febriary 2007 (CALC-ANO1-NE-06-00006).
7. "ANO-1 Refueling Boron Concentration for 1R20," CALC-NEAD-SR-07/004, Rev. 0.
8. "IC (Initial Condition) DNB RCS Protection Criteria," CALC-96-E-0023-02, Rev. 6.
9. "Arkansas Nuclear One Unit 1, Cycle 21 Reload Technical Document (RTD)," Areva Doc. No. 51-9037414-000, February 2, 2007 (CALC-ANO1-NE-06-00005).

ANO-1 2 Rev. 0

CALC-ANO 1-NE-2006-00007 Table Of Contents PaQe REACTOR CORE SAFETY LIMITS Fig. I Variable Low RCS Pressure-Temperature Protective Limits ............................. 5 Fig. 2 AXIAL POWER IMBALANCE Protective Limits ................................................. 6 SH UTD O WN MA R G IN (SD M) ................................................................................................. 7 REGULATING ROD INSERTION LIMITS Fig. 3-A Regulating Rod Insertion Limits for Four-Pump Operation From 0 to 200 +/- 10 E FP D ................................................................................. 8 Fig. 3-B Regulating Rod Insertion Limits for Four-Pump Operation From 200 +/- 10 EFPD to EO C ........................................................................... 9 Fig. 4-A Regulating Rod Insertion Limits for Three-Pump Operation From 0 to 200 +/- 10 EFPD .............................................................................. 10 Fig. 4-B Regulating Rod Insertion Limits for Three-Pump Operation From 200 +/- 10 EFPD to EO C ......................................................................... 11 Fig. 5-A Regulating Rod Insertion Limits for Two-Pump Operation From 0 to 200 +/- 10 E FPD .............................................................................. 12 Fig. 5-B Regulating Rod Insertion Limits for Two-Pump Operation From 200 +/- 10 EFPD to EO C ......................................................................... 13 AXIAL POWER SHAPING RODS (APSR) INSERTION LIMITS ........................................... 14 AXIAL POWER IMBALANCE OPERATING LIMITS Fig. 6-A AXIAL POWER IMBALANCE Setpoints for Full In-Core Conditions for Four-Pump Operation from 0 to EOC .............................................................. 15 Fig. 6-B AXIAL POWER IMBALANCE Setpoints for Minimum In-Core Conditions for Four-Pump Operation from 0 to EOC ........................................................ 16 Fig. 6-C AXIAL POWER IMBALANCE Setpoints for Ex-Core Conditions for Four-Pump Operation from 0 to EOC .............................................................. 17 Fig. 7-A AXIAL-POWER IMBALANCE Setpoints for Full In-Core Conditions for Three-Pump Operation from 0 to EOC ............................................................ 18 Fig. 7-B AXIAL POWER IMBALANCE Setpoints for Minimum In-Core Conditions for Three-Pump Operation from 0 to EOC ........................................................ 19 Fig. 7-C AXIAL POWER IMBALANCE Setpoints for Ex-Core Conditions for Three-Pump Operation from 0 to EOC ............................................................ 20 Fig. 8-A AXIAL POWER IMBALANCE Setpoints for Full In-Core Conditions for Two-Pump Operation from 0 to EOC .............................................................. 21 Fig. 8-B AXIAL POWER IMBALANCE Setpoints for Minimum In-Core Conditions for Two-Pump Operation from 0 to EOC ....................................................... 22 Fig. 8-C AXIAL POWER IMBALANCE Setpoints for Ex-Core Conditions for Two-Pump Operation from 0 to EOC .............................................................. 23 QUADRANT POWER TILT LIMITS AND SETPOINTS ........................................................ 24 ANO-1 3 Rev. 0

CALC-ANO 1-NE-2006-00007 POWER PEAKING FACTORS Fig. 9A LOCA Linear Heat Rate Limits for Mark-B-HTP Fuel ..................................... 25 Fig. 9B LOCA Linear Heat Rate Limits for Mark-B9ZL Fuel ....................................... 26 D NB Pow er Peaking Factors .......................................................................................... 27 REACTOR PROTECTION SYSTEM (RPS) INSTRUMENTATION Fig. 10 RPS Maximum Allowable Setpoints for Axial Power Imbalance ..................... 30 Fig. 11 RPS Variable Low Pressure Temperature Envelope Setpoints ...................... 31 RCS PRESSURE, TEMPERATURE, AND FLOW DNB SURVEILLANCE LIMITS ............... 32 RC S LO O PS MO D E I A ND 2 .............................................................................................. 33 REFUELING BORON CONCENTRA TION ........................................................................... 34 ANO-1 4 Rev. 0

CALC-ANO 1-NE-2006-00007 FIGURE 1 Variable Low RCS Pressure - Temperature Protective Limits (Figure is referred to by Technical Specification 2.1.1.3) 2300 2200

.-"2100 6 2000 U 1900 1800 1700 590 600 610 620 630 640 650 Reactor Coolant Outlet Temperature, F PUMPS OPERATING (TYPE OF LIMIT) GPM* POWER**

FOUR PUMPS (DNBR LIMIT) 383,680 (100%) 110%

THREE PUMPS (DNBR LIMIT) 284,307 (74.1%) 89%

ONE PUMP IN EACH LOOP (DNBR LIMIT) 188,003 (49%) 62.2%

  • 109% OF DESIGN FLOW (2.5% UNCERTAINTY INCLUDED IN STATISTICAL DESIGN LIMIT)
    • AN ADDITIONAL 2% POWER UNCERTAINTY IS INCLUDED IN STATISTICAL DESIGN LIMIT ANO-1 5 Rev. 0

CALC-AN01 -NE-2006-00007 Figure 2 AXIAL POWER IMBALANCE Protective Limits (measurement system independent)

(Figure is referred to by Technical Specification 2.1.1 Bases) 120-(44.40, 112.0)

+

(-47.77, 112.0)

ACCEPTABLE

(-57.11, 100.0) 4 4 PUMP 100- (57.87, 100.0)

OPERATION (44.40, 87.4)

(-47.77, 87.4) 80-(-57.11, 75.4) 4 (57.87, 75.4)

ACCEPTABLE 3 AND 4 PUMP OPERATION (44.40, 61.2)

(-47.77, 61.2) 60

(-57.11, 49.2) The three- or two- (57.87, 49.2) pump example setpoint curves show allowable values for an

'40-ACCEPTABLE approximate 25% and

_j

-I 2, 3AND 4 PUMP 49% flow reduction for OPERATION three- and two-pump operation respectively.

The actual setpoint curve will be calculated a.

.- 20- by the Reactor i-- Protection System and will be directly proportional to the indicated flow.

(-57.11, 0.0) (57.87, 0.0) 7 - B I I I I II I I I I I ** i I

-70 -60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 Axial Power Imbalance, %

ANO-1 6 Rev. 0

CALC-ANO1 -NE-2006-00007 SHUTDOWN MARGIN (SDM)

(Limits are referred to by Technical Specifications 3.1.1, 3.1.4, 3.1.5, 3.1.8, 3.1.9, and 3.3.9)

Verify SHUTDOWN MARGIN per the table below.

REQUIRED TECHNICAL APPLICABILITY SHUTDOWN SPECIFICATION MARGIN REFERENCE MODE 1* >1 %Ak/k 3.1.4, 3.1.5 MODE 2* 1 %Ak/k 3.1.4, 3.1.5, 3.3.9 MODE 3 1 %Ak/k 3.1.1, 3.3.9 MODE 4 >1 %Ak/k 3.1.1, 3.3.9 MODE5 >1 %Aklk 3.1.1, 3.3.9 MODE 1 PHYSICS TESTS Exceptions** 1 %Ak/k 3.1.8 MODE 2 PHYSICS TESTS Exceptions - 1 %Ak/k 3.1.9

    • Entry into Mode 1 Physics Tests Exceptions is not supported by existing analyses and as such requires actual shutdown margin to be > 1 %Ak/k.

ANO-1 7 Rev. 0

CALC-ANO 1-NE-2006-00007 Figure 3-A Regulating Rod Insertion Limits for Four-Pump Operation From 0 to 200 +/- 10 EFPD (Figure is referred to by Technical Specification 3.2.1) 110.0 100.0 90.0 80.0 70.0 (0 60.0 50.0 0

40.0 a- 30.0 20.0 10.0 0.0 0 50 100 150 200 250 300 Rod Index, %Withdrawn 0 20 40 60 80 100 Si I I I I GROUP 7 0 20 40 60 80 100 1 I GROUP 6 0 20 40 60 80 100 1 i I

I I

GROUP 5 ANO-1 8 Rev. 0

CALC-ANO 1-NE-2006-00007 Figure 3-B Regulating Rod Insertion Limits for Four-Pump Operation From 200 +/- 10 EFPD to EOC (Figure is referred to by Technical Specification 3.2.1) 110.0 100.0 90.0 80.0 70.0 00 60.0 CM 50.0 0

40.0 a- 30.0 20.0 10.0 0.0 0 50 100 150 200 250 300 Rod Index, % Withdrawn 0 20 40 60 80 100 1 1 I I I I GROUP7 0 20 40 60 1 1 1 1 801 100 I

GROUP 6 0 20 40 60 80 100 1

GROUP 5 ANO-1 9 Rev. 0

CALC-ANO 1-NE-2006-00007 Figure 4-A Regulating Rod Insertion Limits for Three-Pump Operation From 0 to 200 +/- 10 EFPD (Figure is referred to by Technical Specification 3.2.1) 110.0 100.0 90.0 80.0 70.0 CI 60.0

.4-0 50.0 40.0 0

0.

30.0 20.0 10.0 0.0 0 50 100 150 200 250 300 Rod Index, % Withdrawn 0 20 40 60 80 100 1 I I I I I GROUP 7 0 20 40 60 80 100 i 1 I GROUP 6 0 20 40 60 80 100 1 1 G 1 1

GROUP 5 ANO-1 10 Rev. 0

CALC-ANO 1-NE-2006-00007 Figure 4-B Regulating Rod Insertion Limits for Three-Pump Operation From 200 +/- 10 EFPD to EOC (Figure is referred to by Technical Specification 3.2.1) 110.0 100.0 90.0 80.0 70.0 Co

.4-60.0 0

50.0 40.0 0

0. 30.0 20.0 10.0 0.0 0 50 100 150 200 250 300 Rod Index, % Withdrawn 20 0

I I 40 I60 80 I 100 I

GROUP 7 0 20 40 60 80 100 1 I I I I I GROUP 6 0 20 40 60 80 100 1 I GROUP 5 ANO-1 11 Rev. 0

CALC-ANO 1-NE-2006-00007 Figure 5-A Regulating Rod Insertion Limits for Two-Pump Operation From 0 to 200 +/- 10 EFPD (Figure is referred to by Technical Specification 3.2.1) 110.0 100.0 90.0 80.0 70.0 Co 60.0 M.-

0) 50.0 40.0 0

a.

30.0 20.0 10.0 0.0 0 50 100 150 200 250 300 Rod Index, % Withdrawn 0 20 40 60 80 10)0 I I I I I I GROUP 7 0 20 40 60 80 100 1 I GROUP 6 0 20 40 60 80 100 1 1 I GROUP 5 ANO-1 12 Rev. 0

CALC-ANO1 -NE-2006-00007 Figure 5-B Regulating Rod Insertion Limits for Two-Pump Operation From 200 +/- 10 EFPD to EOC (Figure is referred to by Technical Specification 3.2.1) 110.0 100.0 90.0 80.0 70.0 C0 60.0 W..'

0 50.0 40.0 0 30.0 0.

20.0 10.0 0.0 0 50 100 150 200 250 300 Rod Index, % Withdrawn 0 20 40 60 80 100 1 I GROUP 7 0 20 40 60 80 100 1 I GROUP 6 0 20 40 60 80 100 1 1 I GROUP 5 ANO-1 13 Rev. 0

CALC-ANO 1-NE-2006-00007 AXIAL POWER SHAPING RODS (APSR) INSERTION LIMITS (Figure is referred to by Technical Specification 3.2.2)

Up to 487 +/- 10 EFPD, the APSRs may be positioned as necessary for transient imbalance control. However, the APSRs shall be fully withdrawn by 497 EFPD. After the APSR withdrawal at 487 +/- 10 EFPD, the APSRs shall not be reinserted.

ANO-1 14 Rev. 0

CALC-ANO 1-NE-2006-00007 Figure 6-A AXIAL POWER IMBALANCE Setpoints for Full In-Core Conditions for Four-Pump Operation from 0 to EOC (Figure is referred to by Technical Specification 3.2.3) 110.0

-50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 Axial Power Imbalance, %FP ANO-1 15 Rev. 0

CALC-ANO 1-NE-2006-00007 Figure 6-B AXIAL POWER IMBALANCE Setpoints for Minimum In-Core Conditions* for Four-Pump Operation from 0 to EOC (Figure is referred to by Technical Specification 3.2.3) 110.0

(-16.50, 102) (14.52,102)

(23.38, 92)

(-20.53, 92)

(-26.42, 80) 80.0 (24.32, 80)

IISSIBLE PERMI SSIBLE 70.0 PERM OPER ATING OPEl RATING RECSION RE GION (25.02,

(-27.12, 60) 60) 60.0 0 50.0 ID RESTRICTED RESTRICTED 40.0 REGION REGION 0.

30.0 IO 20.0 10.0

-50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 Axial Power Imbalance, %FP

  • Assumes that no individual short emitter detector affecting the minimum in-core imbalance calculation exceeds 60% sensitivity depletion, and that no individual long emitter detector exceeds 73% sensitivity depletion, or both. The imbalance setpoints for the minimum in-core system must be reduced by 2.80 %FP at the earliest time-in-life that this assumption is no longer valid.

ANO-1 16 Rev. 0

CALC-ANO1 -NE-2006-00007 Figure 6-C AXIAL POWER IMBALANCE Setpoints for Excore Conditions for Four-Pump Operation from 0 to EOC (Figure is referred to by Technical Specification 3.2.3)

(-18.77, 102)

(-23.17, 92)

(-29.60, 80)

-50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 Axial Power Imbalance, o/,Fp ANO-1R 17 Rev. 0

CALC-ANO1 -NE-2006-00007 Figure 7-A AXIAL POWER IMBALANCE Setpoints for Full In-Core Conditions for Three-Pump Operation from 0 to EOC (Figure is referred to by Technical Specification 3.2.3) 110.0 100.0 90.0

(-25.42, 77) 80.0 (23.19, 77)

(-36.06, 69) 70.0 (33.54, 69)

PERMISSIBLE PERMISSIB LE

(-36.16, 60) OPERATING 60.0 (33.65, 60)

OPERATINIG REGION REGION 50.0

(-36.33, 45) 00 (33.84, 45) 40.0 RESTRICTED (.4 RESTRICTED REGION REGION 30.0 0~

20.0 10.0

& , 5

-50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 Axial Power Imbalance, %FP ANO-1 18 Rev. 0

CALC-ANO1 -NE-2006-00007 Figure 7-B AXIAL POWER IMBALANCE Setpoints for Minimum In-Core Conditions* for Three-Pump Operation from 0 to EOC (Figure is referred to by Technical Specification 3.2.3) 110.0 100.0 90.0 (15.19, 77)

(-26.45, 69) 70.0 (24.35, 69)

PERMISSIBLE PERMISSIBLE

(-27.12, 60) OPERATING 60.0 OPERATING (25.02, 60)

REGION REGION 50.0

(-27.64, 45)

(25.54,45)

LO 40.0 04 RESTRICTED RESTRICTED REGION 30.0 REGION 0

20.0 IL 10.0

-50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 Axial Power Imbalance, %FP

  • Assumes that no individual short emitter detector affecting the minimum in-core imbalance calculation exceeds 60% sensitivity depletion, and that no individual long emitter detector exceeds 73% sensitivity depletion, or both. The imbalance setpoints for the minimum in-core system must be reduced by 2.80 %FP at the earliest time-in-life that this assumption is no longer valid.

ANO-11 19 Rev. 0

CALC-ANO 1-NE-2006-00007 Figure 7-C AXIAL POWER IMBALANCE Setpoints for Ex-Core Conditions for Three-Pump Operation from 0 to EOC (Figure is referred to by Technical Specification 3.2.3) 110.0 100.0 90.0

(-19.63, 77) 80.0 (17.49, 77)

(-29.98, 69) 70.0 (27.56,69)

(-30.28, 60) PERMISSIBLE 60.0 PERMISSIBLE OPERATING OPERATING (27.87, 60)

REGION REGION 50.0

(-30.77, 45)

(28.38, 45) 40.0 LO RESTRICTED 30.0 RESTRICTED REGION REGION 0 20.0 0L 10.0

-50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 Axial Power Imbalance, %FP ANO-1 20 Rev. 0

CALC-ANO1 -NE-2006-00007 Figure 8-A AXIAL POWER IMBALANCE Setpoints for Full In-Core Conditions for Two-Pump Operation from 0 to EOC (Figure is referred to by Technical Specification 3.2.3) 110.0 100.0 90.0 80.0 70.0 60.0 (23.50, 52)

(-25.70, 52)

(-36.32, 46) 50.0 (33.83, 46)

PERMISSIBLE

(-36.39, 40) 40.0 PERMISSIBL E (33.90, 40)

OPERATING co I0 OPERATIN- G REGION

(-36.50, 30) 00 REGION (34.03, 30) 0 30.0 RESTRICTED RESTRICTED 20.0 REGION REGION 0 0.

10.0

-50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 Axial Power Imbalance, %FP ANO-1 21 Rev. 0

CALC-ANO1 -NE-2006-00007 Figure 8-B AXIAL POWER IMBALANCE Setpoints for Minimum In-Core Conditions* for Two-Pump Operation from 0 to EOC (Figure is referred to by Technical Specification 3.2.3) 110.0 r 100.0 I 90.0 80.0 I 70.0 60.0 I_

(-17.88, 52) (16.06, 52)

(-27.24, 46)6 50.0 -

(25.15, 46)

(-27.82, 40) (25.72, 40)

PERMIV SSIBLE 40.0 F PFPRMI.£5£1RI F OPERAATING OPERATING

(-28.17, 30) REG (26.07, 30)

ION coJ REGION 30.0 k RESTRICTED REGION 0.

20.0 F RESTRICTED REGION 10.0 F

-50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 Axial Power Imbalance, %FP

  • Assumes that no individual short emitter detector affecting the minimum in-core imbalance calculation exceeds 60% sensitivity depletion, and that no individual long emitter detector exceeds 73% sensitivity depletion, or both. The imbalance setpoints for the minimum in-core system must be reduced by 2.80 %FP at the earliest time-in-life that this assumption is no longer valid.

ANO-1 22 Rev. 0

CALC-ANO 1-NE-2006-00007 Figure 8-C AXIAL POWER IMBALANCE Setpoints for Ex-Core Conditions for Two-Pump Operation from 0 to EOC (Figure is referred to by Technical Specification 3.2.3) 110.0 100.0 90.0 80.0 70.0 60.0

(-20.45, 52)

(18.34, 52)

(-30.74, 46) 50.0 (28.35, 46)

(-30.94, 40) r PERMISSIBLE 0 40.0 (28.54, 40)

PERMISSIEBLE OPERATING 2 REGION ( OPERATINNG

(-31.26, 30) O 0 30.0 REGION (28.87, 30)

RESTRICTED 0 20.0 RESTRICTED REGION 0

9L REGION 10.0 J. U.U~

-50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 Axial Power Imbalance, %FP ANO-1 23 Rev. 0

CALC-ANO1 -NE-2006-00007 TABLE 3A-14 Quadrant Power Tilt Limits And Setpoints (Limits are referred to by Technical Specification 3.2.4)

From 0 EFPD to EOC Measurement System Steady State Value (%) Maximum Value (%)

60 % FP > 60 % FP Full In-core Detector System Setpoint 6.83 4.44 25.00 Minimum In-core Detector System Setpoint 2.78* 1.90* 25.00 Ex-core Power Range NI Channel Setpoint 4.05 1.96 25.00 Measurement System Independent Limit 7.50 4.92 25.00

  • Assumes that no individual long emitter detector affecting the minimum in-core tilt calculation exceeds 73% sensitivity depletion. The setpoint must be reduced to 1.50% (power levels

> 60% FP) and to 2.19% (power levels < 60% FP) at the earliest time-in-life that this assumption is no longer valid.

ANO-1 24 Rev. 0

CALC-ANO1 -NE-2006-00007 Figure 9A LOCA Linear Heat Rate Limits for Mark-B-HTP Fuel (Figure is referred to by Technical Specification 3.1.8 and 3.2.5) 19 18 6.021-7.779 ft (40000,17.1) 17 __

Q r-Alft (400000,16.8)

I*X(40000, 16.8) 2.506 ft (40000, 16.6) (40000, 16.7) 12 .*. (400 15.9)

(40000, 5.9)

  • ______ _____
  • 16 E Oft(40000, 15,N.7)
  • 15 C) 14 13 (62000, 13.0) 12

, ,. ., . . . .. . . . . . . , , * , , . . . . . . . . . . . . . . . . . . . I . . . . . . . . . .

11 0 10000 20000 30000 40000 50000 60000 70000 Burnup (MWdlmtU)

ANO-1 25 Rev. 0

CALC-ANO 1-NE-2006-00007 Figure 9B LOCA Linear Heat Rate Limits for Mark-B9ZL Fuel (Figure is referred to by Technical Specification 3.1.8 and 3.2.5) 19 18 17 6.021-ft (45000, 16.5) 16 2-160- 4-24 36 ft S(45000, 16.3)

I E,

.j (45000, 15.4) 15 0and 12-ft 14

-J 13 (62000, 12.5) 12 11 10000 .

2000... ..................... .0.... ... .

0 10000 20000 30000 40000 50000 60000 70000 Burnup (MWd/mtU)

ANO-1 26 Rev. 0

CALC-ANO1 -NE-2006-00007 DNB Power Peaking Factors (Limits are referred to by Technical Specification 3.1.8 and 3.2.5)

The following total power peaking factors define the Maximum Allowable Peaking (MAP) limits to protect the initial conditions assumed in the DNB Loss of Flow transient analysis.

The total power peaking factors for both the Mark-B9 and the Mark-B-HTP fuels are provided. The total power peaking factors for IC-DNB 4-pump and 3-pump are identical; hence one set of IC-DNB values are provided for both 4-pump and 3-pump operation.

Mark-B-HTP Mark-B9ZL Axial Peak x/L IC MAP Limits Axial Peak x/L IC MAP Limits 0.01 2.08970 0.01 0.14 2.09061 0.14 ---

0.20 2.09081 0.20 2.036 0.30 2.09080 0.30 ---

0.40 2.09048 0.40 2.029 1.1 0.50 2.09030 1.1 0.50 ---

0.60 2.08995 0.60 2.016 0.70 2.08979 0.70 0.80 2.08866 0.80 1.988 0.89 2.04041 0.89 ---

0.99 1.94602 0.99 ---

0.01 2.38393 0.01 0.14 2.38637 0.14 0.20 2.38711 0.20 0.30 2.38666 0.30 0.40 2.38616 0.40 1.2 0.50 2.38612 1.2 0.50 Evaluated 0.60 2.38553 0.60 0.70 2.30194 0.70 0.80 2.20190 0.80 0.89 2.13510 0.89 0.99 2.04448 0.99 0.01 2.66050 0.01 0.14 2.58201 0.14 0.20 2.64238 0.20 2.535 0.30 2.70551 0.30 ---

0.40 2.68966 0.40 2.506 1.3 0.50 2.59373 1.3 0.50 0.60 2.49505 0.60 2.411 0.70 2.40470 0.70 0.80 2.29341 0.80 2.252 0.89 2.22210 0.89 ---

0.99 2.13400 0.99 ANO-1 27 Rev. 0

CALC-ANO1 -NE-2006-00007 IC-DNB Total Power Peaking Factors (Continued)

Mark-B-HTP Mark-B9ZL Axial Peak x/L IC MAP Limits Axial Peak x/L IC MAP Limits 0.01 2.68281 0.01 0.14 2.58266 0.14 0.20 2.64487 0.20 0.30 2.74565 0.30 0.40 2.78466 0.40 1.4 0.50 2.69263 1.4 0.50 AxalPakeo 0.60 2.58415 0.60 0.70 2.49099 0.70 0.80 2.37534 0.80 0.89 2.30086 0.89 0.99 2.21159 0.99 0.01 2.70611 0.01 0.14 2.58407 0.14 ---

0.20 2.64723 0.20 2.973 0.30 2.74950 0.30 ---

0.40 2.81333 0.40 2.786 1.5 0.50 2.77586 1.5 0.50 ---

0.60 2.66315 0.60 2.596 0.70 2.56832 0.70 ---

0.80 2.44935 0.80 2.422 0.89 2.37414 0.89 0.99 2.28275 0.99 0.01 2.72554 0.01 0.14 2.58400 0.14 0.20 2.64915 0.20 0.30 2.75237 0.30 0.40 2.81854 0.40 1.6 0.50 2.84445 1.6 0.50 Evaluated 0.60 2.73470 0.60 0.70 2.63922 0.70 0.80 2.51853 0.80 0.89 2.44208 0.89 0.99 2.34902 0.99 0.01 2.74462 0.01 0.14 2.58449 0.14 ---

0.20 2.65108 0.20 3.117 0.30 2.75329 0.30 0.40 2.82309 0.40 2.921 1.7 0.50 2.86702 1.7 0.50 ---

0.60 2.79623 0.60 2.727 0.70 2.70161 0.70 ---

0.80 2.58298 0.80 2.560 0.89 2.50578 0.89 0.99 2.41376 0.99 ANO-1 28 Rev. 0

CALC-ANO 1-NE-2006-00007 IC-DNB Total Power Peaking Factors (Continued)

Mark-B-HTP Mark-B9ZL Axial Peak x/L IC MAP Limits Axial Peak x/L IC MAP Limits 0.01 2.76248 0.01 0.14 2.58536 0.14 0.20 2.65100 0.20 0.30 2.75344 0.30 0.40 2.82636 0.40 1.8 0.50 2.87190 1.8 0.50 AxalPakeo 0.60 2.85278 0.60 0.70 2.75823 0.70 0.80 2.64208 0.80 0.89 2.56412 0.89 0.99 2.47374 0.99 0.01 2.78038 0.01 0.14 2.58548 0.14 ---

0.20 2.65223 0.20 3.237 0.30 2.75356 0.30 0.40 2.82802 0.40 3.024 1.9 0.50 2.87614 1.9 0.50 ---

0.60 2.89110 0.60 2.841 0.70 2.80738 0.70 ---

0.80 2.69523 0.80 2.675 0.89 2.61744 0.89 ---

0.99 2.52919 0.99 ---

Note - the values above are not error corrected.

The present T-H methodology allows for an increase in the design radial-local peak for power levels below 100% full power. The equations defining the multipliers are as follows:

P/Pm = 1.00 P/Pm < 1.00 MAP Multiplier 1.0 1 + 0.3(1 - P/Pm)

Where P = core power fraction, and Pm = 1.00 for 4 pump operation, or

= 0.75 for 3 pump operation.

ANO-1 29 Rev. 0

CALC-ANO1 -NE-2006-00007 Figure 10 Reactor Protection System Maximum Allowable Setpoints for Axial Power Imbalance (Figure is referred to by Technical Specification 2.1.1.1, 2.1.1.2, and 3.3.1) 120-(-35.72, 107.0) (31.87, 107.0) 100-ACCEPTABLE

(-45.89, 93.04) 4 4 PUMP (46.46, 93.04)

OPERATION

(-35.72, 80.37) (31.87, 80.37) {

ACCEPTABLE 3AND4PUMP

(-45.89, 66.41) OPERATION (46.46, 66.41) 60-i (-35.72, 54.00) (31.87, 54.00)

The three- or two-pump example setpoint curves show allowable values for

(-45.89, 40.04) 40- an approximate 25% (46.46, 40.04)

ACCEPTABLE 0 and 49% flow 2, 3 AND 4 PUMP reduction for three-OPERATION and two-pump I-operation respectively. The l- actual setpoint curve 20- will be calculated by the Reactor Protection System and will be directly proportional to the indicated flow.

(-45.89, 0.0) (46.46, 0.0) w

- - I I I I v I I I I I I

-60 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 Axial Power Imbalance, %

Flux / Flow Setpoint

(% Power / % Flow)

Four Pump Operation 1.07 Three Pump Operation 1.07 Two Pump Operation 1.07 ANO-1 30 Rev. 0

CALC-ANO1 -NE-2006-00007 Figure 11 Reactor Protection System Variable Low Pressure Temperature Envelope Setpoints (Figure is referred to by Technical Specification 3.3.1) 2400 Y 1. 1~

P=2355 P IG IT =618 °F a a

"* 2200 ACCEPTABLE - UNACCEPTABLE (A OPERATION OPERATION 1..

U) 0_

(_

0) o 2000 -- p = (16.25 Tout - 8063) psig P @4. 4.

0 060 1' 4.

P=1800 PSIG 1600-560 580 600 620 640 660 Reactor Outlet Temperature, OF ANO-1 31 Rev. 0

CALC-ANO 1-NE-2006-00007 RCS Pressure, Temperature, and Flow DNB Surveillance Limits (Limit is referred to by Technical Specification 3.4.1)

Four-Pump Three-Pump Two-Pump Operation Operation Operation Minimum RCS Hot Leg Pressure (psig) Note 1 2082.2 2 0 8 1 .2 Note 4 2118.1 2 12 0

.4 Note 5 Maximum RCS Hot Leg Temperature (°F) Note 2 602.85 603.15 603.35 Minimum RCS Total Flow (Mlbm/hr) Note3 143.36 Note6 106.46 Note 7 7 0 .6 4 Note8 138.01 Note9 102.45 Note9 6 7 .9 6 Note 9 Note 1 -- Using individual indications P1021, P1023, P1038 and P1039 (or equivalent) from the plant computer.

Note 2-- Using individual indications T1011NR, T1014NR, T1039NR, T1042NR, T1012, T1 013, T1 040 and T1 041 or averages TOUTA, XTOUTA, TOUTB, XTOUTB, TOUT, XTOUT from the plant computer.

Note 3 -- Using indication WRCFT (or equivalent) from the plant computer, and can be linearly interpolated between these values provided the Tave versus Power level curve is followed.

Note 4 -- Applies to the RCS loop with two RCPs operating.

Note 5 -- Applies to the RCS loop with one RCP operating.

Note 6 -- For Tcod = 556.57 F.

Note 7 -- For Tcold = 556.3 F.

Note 8-- For Tcld = 556.1 F.

Note 9 -- For TId = 580 F.

ANO-1 32 Rev. 0

CALC-ANO 1-NE-2006-00007 RCS Loops - Mode 1 and Mode 2 (Limit is referred to by Technical Specification 3.4.4)

Nominal Operating Power Level

(% Power)

Four Pump Operation 100 Three Pump Operation 75 Two Pump Operation* 49

ANO-1 33 Rev. 0

CALC-ANO1 -NE-2006-00007 Refueling Boron Concentration (Limit is referred to by Technical Specification 3.9.1)

The minimum required boron concentration (which includes uncertainties) for use during refueling as a function of EFPD is:

EOC 20 EFPD ppm 450 2504 452 2500 454 2496 456 2492 458 2488 460 2484 462 2480 464 2476 466 2472 468 2468 470 2464 472 2460 474 2456 476 2452 478 2448 480 2444 482 2440 ANO-1 34 Rev. 0

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