1CAN110801, Cycle 22 Core Operating Limits Report (COLR)

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Cycle 22 Core Operating Limits Report (COLR)
ML083230863
Person / Time
Site: Arkansas Nuclear Entergy icon.png
Issue date: 11/13/2008
From: James D
Entergy Operations
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
1CAN110801 CALC-ANO1-NE-08-00006
Download: ML083230863 (34)
v • d • e


Text

1CAN110801

November 13, 2008

U.S. Nuclear Regulatory Commission

Attn: Document Control Desk

Washington, DC 20555

Subject:

ANO-1 Cycle 22 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 22 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 7, January 2008. 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 me.

Sincerely, Dale E. James

DEJ/dbb

Attachment:

ANO-1 Cycle 22 Core Operating Limits Report (COLR) Entergy Operations, Inc.

1448 S.R. 333 Russellville, AR 72802

Tel 479-858-4619 Dale E. James Manager, Licensing Nuclear Safety Assurance

1CAN110801 Page 2 of 2

cc: Mr. Elmo E. Collins Regional Administrator U. S. Nuclear Regulatory Commission Region IV 612 Lamar Blvd., Suite 400 Arlington, TX 76011-8064

NRC Senior Resident Inspector Arkansas Nuclear One P. O. Box 310

London, AR 72847 U. S. Nuclear Regulatory Commission

Attn: Mr. Alan B. Wang

MS O-7 D1

Washington, DC 20555-0001

Mr. Bernard R. Bevill

Director Division of Radiation

Control and Emergency Management

Arkansas Department of Health and Human Services

P. O. Box 1437

Slot H-30

Little Rock, AR 72203-1437

Attachment 1 1CAN110801 ANO-1 Cycle 22 Core Operating Limits Report (COLR)

ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 1 Rev. 0

ENTERGY OPERATIONS ARKANSAS NUCLEAR ONE UNIT ONE CYCLE 22 CORE OPERATING LIMITS REPORT

ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 2 Rev. 0 1.0 CORE OPERATING LIMITS This Core Operating Limits Report for ANO-1 Cycle 22 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) 2.1.1.3 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
13) 3.9.1 Boron Concentration

2.0 REFERENCES

1. "Safety Criteria and Methodology for Acceptable Cycle Reload Analysis," BAW-10179P-A, Rev. 7, Framatome ANP, Lynchburg, Virginia, January 2008. 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-10164PA, Rev. 6, Framatome Technologies, Inc.,

Lynchburg, Virginia, June 2007. 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 22 Limits and Setpoints," Areva Doc. No. 86-9072817-000, July 8, 2008.

6. "Arkansas Nuclear One, Unit 1, Cycle 22 Reload Report," ANP-2742, Rev. 1, October 2008 (CALC-ANO1-NE-08-00005). 7. "ANO-1 Refueling Boron Concentration for 1R21," CALC-NEAD-SR-08/026, Rev. 0.
8. "IC (Initial Condition) DNB RCS Protection Criteria," CALC-96-E-0023-02, Rev. 7.
9. "Arkansas Nuclear One Unit 1, Cycle 22 Reload Technical Document (RTD)," Areva Doc. No. 51-9083143-001, October, 2008 (CALC-ANO1-NE-08-00004).

ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 3 Rev. 0 Table Of Contents Page REACTOR CORE SAFETY LIMITS Fig. 1 Variable Low RCS Pressure-Temperature Protective Limits.................................5 Fig. 2 AXIAL POWER IMBALANCE Protective Limits.....................................................6 SHUTDOWN MARGIN (SDM)......................................................................................................7 REGULATING ROD INSERTION LIMITS Fig. 3-A Regulating Rod Insertion Limits for Four-Pump Operation From 0 to 200 10 EFPD......................................................................................8 Fig. 3-B Regulating Rod Insertion Limits for Four-Pump Operation From 200 10 EFPD to EOC ...............................................................................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 EOC .............................................................................11 Fig. 5-A Regulating Rod Insertion Limits for Two-Pump Operation From 0 to 200 10 EFPD ...................................................................................12 Fig. 5-B Regulating Rod Insertion Limits for Two-Pump Operation From 200 10 EFPD to EOC .............................................................................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 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 4 Rev. 0 POWER PEAKING FACTORS Fig. 9A LOCA Linear Heat Rate Limits for Mark-B-HTP Fuel..........................................25 DNB Power Peaking Factors...............................................................................................26 REACTOR PROTECTION SYSTEM (RPS) INSTRUMENTATION Fig. 10 RPS Maximum Allowable Setpoints for Axial Power Imbalance.........................27 Fig. 11 RPS Variable Low Pressure Temperature Envelope Setpoints..........................28 RCS PRESSURE, TEMPERATURE, AND FLOW DNB SURVEILLANCE LIMITS...................29 RCS LOOPS MODE 1 AND 2....................................................................................................30 REFUELING BORON CONCENTRATION................................................................................31

ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 5 Rev. 0 FIGURE 1 Variable Low RCS Pressure - Temperature Protective Limits (Figure is referred to by Technical Specification 2.1.1.3)

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 1 PUMP EACH LOOP 4-PUMP 3-PUMP590 600 610 620 630 640 650 2300

2200

2100

2000

1900

1800

1700 Reactor Coolant Outlet Temperature, °F Core Outlet Pressure, psig ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 6 Rev. 0 Figure 2 AXIAL POWER IMBALANCE Protective Limits (measurement system independent)

(Figure is referred to by Technical Specification 2.1.1 Bases) 0 20 40 60 80 100 120-70-60-50-40-30-20-10010203040506070AXIAL POWER IMBALANCE, %Thermal Power Level %

ACCEPTABLE4 PUMP OPERATION(-47.85, 112.0)(-56.95, 100.0)(-56.95, 75.4)(-47.85, 87.4)(48.38, 112.0)(59.99, 100.0)(59.99, 75.4)(48.38, 87.4)

ACCEPTABLE3 AND 4 PUMP OPERATION(59.99, 49.2)(-56.95, 49.2)(-47.85, 61.2)(48.38, 61.2)

ACCEPTABLE2, 3 AND 4 PUMP OPERATIONThe three-or two-pump example setpoint curves show allowable values for an approximate 25% and 49% flow reduction for three and two-pump operation respectively. The actual setpoint curve will be calculated by the ReactorProtection System and will be directly proportional to the indicated flow.(-56.95, 0.0)(59.99, 0.0)

ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 7 Rev. 0 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.

APPLICABILITY REQUIRED SHUTDOWN MARGIN TECHNICAL SPECIFICATION REFERENCE MODE 1* 1 %k/k 3.1.4, 3.1.5 MODE 2* 1 %k/k 3.1.4, 3.1.5, 3.3.9 MODE 3 1 %k/k 3.1.1, 3.3.9 MODE 4 1 %k/k 3.1.1, 3.3.9 MODE 5 1 %k/k 3.1.1, 3.3.9 MODE 1 PHYSICS TESTS Exceptions** 1 %k/k 3.1.8 MODE 2 PHYSICS TESTS Exceptions 1 %k/k 3.1.9

  • The required Shutdown Margin capability of 1 %k/k in MODE 1 and MODE 2 is preserved by the Regulating Rod Insertion Limits specified in Figures 3-A&B, 4-A&B, and 5-A&B, as

required by Technical Specification 3.2.1.

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

ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 8 Rev. 0 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)

between two sequential groups, except for physics tests.

0 20 40 60 80 100 0 20 40 60 80 100 0 20 40 60 80 100 0 50 100 150 200 250 300 Rod Index, % Withdrawn Power, % of 2568 MWt 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 (0.0, 6.9)

(34.5, 20)

(72.5, 58)

(105.0, 102)

(264.1, 102)

(300.0, 102)

(248.5, 90)

(248.5, 78)

(206.5, 58)

OPERATION IN THIS REGION IS NOT ALLOWED SHUTDOWN MARGIN LIMIT OPERATION RESTRICTED PERMISSIBLE OPERATION REGION GROUP 6* GROUP 5* GROUP 7*

ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 9 Rev. 0 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)

between two sequential groups, except for physics tests.

0 50 100 150 200 250 300 Rod Index, % Withdrawn Power, % of 2568 MWt 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 (0.0, 1.2)

(95.5, 20)

(160.5, 58)(201.4, 102) (264.1, 102)

(300.0, 102)

(248.5, 90)

(248.5, 78)

(206.5, 58)

OPERATION IN THIS REGION IS NOT ALLOWED SHUTDOWN MARGIN LIMIT OPERATION RESTRICTED PERMISSIBLE OPERATION REGION 0 20 40 60 80 100 GROUP 6* 0 20 40 60 80 100 GROUP 5* 0 20 40 60 80 100 GROUP 7*

ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 10 Rev. 0 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)

between two sequential groups, except for physics tests.

0 50 100 150 200 250 300 Rod Index, % Withdrawn Power, % of 2568 MWt 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 (0.0, 5.2)

(34.5, 15)

(72.5, 43.5)

(105.5, 77)

(264.7, 77)

(300.0, 77)

(248.5, 67)

(248.5, 58)

(206.5, 43)

OPERATION IN THIS REGION IS NOT ALLOWED SHUTDOWN MARGIN LIMIT OPERATION RESTRICTED PERMISSIBLE OPERATION REGION 0 20 40 60 80 100 GROUP 6* 0 20 40 60 80 100 GROUP 5* 0 20 40 60 80 100 GROUP 7*

ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 11 Rev. 0 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)

between two sequential groups, except for physics tests.

0 50 100 150 200 250 300 Rod Index, % Withdrawn Power, % of 2568 MWt 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 (0.0, 0.9)

(95.5, 15)

(160.5, 43.5)

(202.0, 77)

(264.7, 77)

(300.0, 77)

(248.5, 58)

(248.5, 67)

(206.5, 43)

OPERATION IN THIS REGION IS NOT ALLOWED SHUTDOWN MARGIN LIMIT OPERATION RESTRICTED PERMISSIBLE OPERATION REGION 0 20 40 60 80 100 GROUP 6* 0 20 40 60 80 100 GROUP 5* 0 20 40 60 80 100 GROUP 7*

ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 12 Rev. 0 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)

between two sequential groups, except for physics tests.

0 50 100 150 200 250 300 Rod Index, % Withdrawn Power, % of 2568 MWt 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 (0.0, 3.5)

(34.5, 10)

(72.5, 29)

(106.5, 52)

(265.8, 52)

(300.0, 52)

(248.5, 44)

(248.5, 38)

(206.5, 28)

OPERATION IN THIS REGION IS NOT ALLOWED SHUTDOWN MARGIN LIMIT OPERATION RESTRICTED PERMISSIBLE OPERATION REGION 0 20 40 60 80 100 GROUP 6* 0 20 40 60 80 100 GROUP 5* 0 20 40 60 80 100 GROUP 7*

ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 13 Rev. 0 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)

between two sequential groups, except for physics tests.

0 50 100 150 200 250 300 Rod Index, % Withdrawn Power, % of 2568 MWt 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 (0.0, 0.7)

(95.5, 10)

(160.5, 29)

(203.2, 52)

(265.8, 52)

(300.0, 52)

(248.5, 38)

(248.5, 44)

(206.5, 28)

OPERATION IN THIS REGION IS NOT ALLOWED SHUTDOWN MARGIN LIMIT OPERATION RESTRICTED PERMISSIBLE OPERATION REGION 0 20 40 60 80 100 GROUP 6* 0 20 40 60 80 100 GROUP 5* 0 20 40 60 80 100 GROUP 7*

ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 14 Rev. 0 AXIAL POWER SHAPING RODS (APSR) INSERTION LIMITS (Figure is referred to by Technical Specification 3.2.2)

Up to 434 +/- 10 EFPD, the APSRs may be positioned as necessary for transient imbalance control. However, the APSRs shall be fully withdrawn by 444 EFPD. After the APSR

withdrawal at 434 +/- 10 EFPD, the APSRs shall not be reinserted.

ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 15 Rev. 0 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)

-50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 PERMISSIBLE OPERATING REGION RESTRICTED REGION Power, % of 2568 MWt Axial Power Imbalance, %FP RESTRICTED REGION PERMISSIBLE OPERATING REGION (-36.16, 60)

(-35.94, 80)

(33.65, 60)

(-29.50, 92)

(-25.14, 102)

(33.40, 80)

(32.83, 92)

(22.87, 102) 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 16 Rev. 0 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)

  • Assumes that no individual long emitter detector affecting the minimum incore 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.

-50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 PERMISSIBLE OPERATING REGION RESTRICTED REGION Power, % of 2568 MWt Axial Power Imbalance, %FP RESTRICTED REGION PERMISSIBLE OPERATING REGION (-27.12, 60)

(-26.42, 80)

(25.02, 60)

(-20.53, 92)

(-16.50, 102)

(24.32, 80)

(23.38, 92)

(14.52, 102) 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 17 Rev. 0 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)

-50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 PERMISSIBLE OPERATING REGION RESTRICTED REGION Power, % of 2568 MWt Axial Power Imbalance, %FP RESTRICTED REGION PERMISSIBLE OPERATING REGION (-30.28, 60)

(-29.60, 80)

(27.87, 60)

(-23.17, 92)

(-18.77, 102)

(27.18, 80)

(26.35, 92)

(16.62, 102) 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 18 Rev. 0 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)

-50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 PERMISSIBLE OPERATING REGION RESTRICTED REGION Power, % of 2568 MWt Axial Power Imbalance, %FP RESTRICTED REGION PERMISSIBLE OPERATING REGION (-36.33, 45)

(-36.16, 60)

(33.84, 45)

(-36.06, 69)

(-25.42, 77)

(33.65, 60)

(33.54, 69)

(23.19, 77) 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 19 Rev. 0 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)

  • Assumes that no individual long emitter detector affecting the minimum incore 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. -50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 PERMISSIBLE OPERATING REGION RESTRICTED REGION Power, % of 2568 MWt Axial Power Imbalance, %FP RESTRICTED REGION PERMISSIBLE OPERATING REGION (-27.64, 45)

(-27.12, 60)

(25.54, 45)

(-26.45, 69)

(-17.02, 77)

(25.02, 60)

(24.35, 69)

(15.19, 77) 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 20 Rev. 0 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)

-50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 PERMISSIBLE OPERATING REGION RESTRICTED REGION Power, % of 2568 MWt Axial Power Imbalance, %FP RESTRICTED REGION PERMISSIBLE OPERATING REGION (-30.77, 45)

(-30.28, 60)

(28.38, 45)

(-29.98, 69)

(-19.63, 77)

(27.87, 60)

(27.56, 69)

(17.49, 77) 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 21 Rev. 0 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)

-50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 PERMISSIBLE OPERATING REGION RESTRICTED REGION Power, % of 2568 MWt Axial Power Imbalance, %FP RESTRICTED REGION PERMISSIBLE OPERATING REGION (-36.50, 30)

(-36.39, 40)

(34.03, 30)

(-36.32, 46)

(-25.70, 52)

(33.90, 40)

(33.83, 46)

(23.50, 52) 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 22 Rev. 0 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)

  • Assumes that no individual long emitter detector affecting the minimum incore 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. -50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 PERMISSIBLE OPERATING REGION RESTRICTED REGION Power, % of 2568 MWt Axial Power Imbalance, %FP RESTRICTED REGION PERMISSIBLE OPERATING REGION (-28.17, 30)

(-27.82, 40)

(26.07, 30)

(-27.24, 46)

(-17.88, 52)

(25.72, 40)

(25.15, 46)

(16.06, 52) 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 23 Rev. 0 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)

-50.00 -40.00 -30.00 -20.00 -10.00 0.00 10.00 20.00 30.00 40.00 50.00 PERMISSIBLE OPERATING REGION RESTRICTED REGION Power, % of 2568 MWt Axial Power Imbalance, %FP RESTRICTED REGION PERMISSIBLE OPERATING REGION (-31.26, 30)

(-30.94, 40)

(28.87, 30)

(-30.74, 46)

(-20.45, 52)

(28.54, 40)

(28.35, 46)

(18.34, 52) 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 24 Rev. 0 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 Setpoint2.78* 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 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 25 Rev. 0 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)

X 7.779 ft (40000, 17.4) 6.021 ft (40000, 17.3) 4.264 ft (40000, 17.2) 9.536 ft (40000, 17.1) 2.506 ft (40000, 17.0) 12 ft (40000, 16.2) 0 ft (40000, 16.1)

(62000, 13.0)

Linear Heat Rate Limit (KW/ft)Burnu p (MWd/mtU)19 18 17 16 15 14 13 12 11 0 10000 20000 300004000050000 6000070000 X X ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 26 Rev. 0 DNB Power Peaking Factors (Limits are referred to by Techni cal 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 Fl ow transient analysis. The total power peaking factors for 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.

IC-DNB Total Power Peaking Factors Mark-B-HTP Axial Peak x/L IC MAP Limits Axial Peak x/L IC MAP Limits Axial Peak x/L IC MAP Limits 0.01 2.08970 0.01 2.68281 0.01 2.74462 0.14 2.09061 0.14 2.58266 0.14 2.58449 0.20 2.09081 0.20 2.64487 0.20 2.65108 0.30 2.09080 0.30 2.74565 0.30 2.75329 0.40 2.09048 0.40 2.78466 0.40 2.82309 0.50 2.09030 0.50 2.69263 0.50 2.86702 0.60 2.08995 0.60 2.58415 0.60 2.79623 0.70 2.08979 0.70 2.49099 0.70 2.70161 0.80 2.08866 0.80 2.37534 0.80 2.58298 0.89 2.04041 0.89 2.30086 0.89 2.50578 1.1 0.99 1.94602 1.4 0.99 2.21159 1.7 0.99 2.41376 0.01 2.38393 0.01 2.70611 0.01 2.76248 0.14 2.38637 0.14 2.58407 0.14 2.58536 0.20 2.38711 0.20 2.64723 0.20 2.65100 0.30 2.38666 0.30 2.74950 0.30 2.75344 0.40 2.38616 0.40 2.81333 0.40 2.82636 0.50 2.38612 0.50 2.77586 0.50 2.87190 0.60 2.38553 0.60 2.66315 0.60 2.85278 0.70 2.30194 0.70 2.56832 0.70 2.75823 0.80 2.20190 0.80 2.44935 0.80 2.64208 0.89 2.13510 0.89 2.37414 0.89 2.56412 1.2 0.99 2.04448 1.5 0.99 2.28275 1.8 0.99 2.47374 0.01 2.66050 0.01 2.72554 0.01 2.78038 0.14 2.58201 0.14 2.58400 0.14 2.58548 0.20 2.64238 0.20 2.64915 0.20 2.65223 0.30 2.70551 0.30 2.75237 0.30 2.75356 0.40 2.68966 0.40 2.81854 0.40 2.82802 0.50 2.59373 0.50 2.84445 0.50 2.87614 0.60 2.49505 0.60 2.73470 0.60 2.89110 0.70 2.40470 0.70 2.63922 0.70 2.80738 0.80 2.29341 0.80 2.51853 0.80 2.69523 0.89 2.22210 0.89 2.44208 0.89 2.61744 1.3 0.99 2.13400 1.6 0.99 2.34902 1.9 0.99 2.52919 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 under 100% full power. The equations defining the multipliers are as follows:

P/P m = 1.00 P/P m < 1.00 MAP Multiplier 1.0 1 + 0.3(1 - P/P m) Where P = core power fraction, and P m = 1.00 for 4-pump operation, or = 0.75 for 3-pump operation ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 27 Rev. 0 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)

Flux / Flow Setpoint

(% Power / % Flow) Four Pump Operation 1.07 Three Pump Operation 1.07 Two Pump Operation 1.07 -60 -50 -40 20 -10 0 10 20 30 40 50 60

(-44, 92.5)

(-44, 66.0)

(-44, 39.5)

(-44, 0.0) (-34, 107.0)

(-34, 80.0)

(-34 , 53.0) ACCEPTABLE 4 PUMP OPERATION ACCEPTABLE 3 AND 4 PUMP OPERATION ACCEPTABLE 2, 3 AND 4 PUMP OPERATION Thermal Power Level % Axial Power Imbalance, % The three- or two-pump example setpoint curves show allowable values for an approximate 25%

and 49% flow

reduction for three-and two-pump

operation respectively. The actual setpoint curve will be calculated by

the Reactor Protection System and will be directly

proportional to the indicated flow.

(45, 92.5)

(45, 66.0)

(45, 39.5)

(45, 0.0) (30, 107.0)

(30, 80.0)

(30 , 53.0)120 100 80 60 40 20 0 ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 28 Rev. 0 Figure 11 Reactor Protection System Variable Low Pressure Temperature Envelope Setpoints (Figure is referred to by Technical Specification 3.3.1)

2400

2200

2000

1800

1600 560 580 600620640 660 Reactor Outlet Tem p erature , °F Reactor Coolant Pressure

, P = 1800 psig P = 2355 psig T = 618 °F P = (16.25 Tout - 8063) psig ACCEPTABLE OPERATION UNACCEPTABLE OPERATION ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 29 Rev. 0 RCS Pressure, Temperature, and Flow DNB Surveillance Limits (Limit is referred to by Technical Specification 3.4.1)

Four-Pump Operation Three-Pump Operation Two-Pump Operation Minimum RCS Hot Leg Pressure (psig) Note 1 2082.2 2081.2Note 4 2120.4Note 5 2118.1 Maximum RCS Hot Leg Temperature (°F) Note 2 602.6 602.9 603.15 Minimum RCS Total Flow (Mlb m/hr) Note 3 143.36 Note 6 138.01 Note 9 106.46 Note 7 102.45 Note 9 70.64 Note 8 67.96 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, T1013, T1040 and T1041 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 T cold = 556.57 F.

Note 7 -- For T cold = 556.3 F.

Note 8 -- For T cold = 556.1 F.

Note 9 -- For T cold = 580 F.

ANO-1 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 30 Rev. 0 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 CYCLE 22 COLR CALC-ANO1-NE-08-00006

ANO-1 31 Rev. 0 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 21 EFPD ppm 494 2164 496 2160 498 2156 500 2152 502 2148 504 2144 506 2140 508 2136 510 2132 512 2128

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