1CAN041001, Cycle 23 Core Operating Limits Report
| ML100960311 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 04/06/2010 |
| From: | David Bice Entergy Operations |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 1CAN041001 | |
| Download: ML100960311 (34) | |
Text
1CAN041001 April 6, 2010 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555
Subject:
ANO-1 Cycle 23 COLR Arkansas Nuclear One - Unit 1 Docket No. 50-313 License No. DPR-51
Dear Sir or Madam:
Entergy Operations, Inc. (Entergy) 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 23 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, DBB/dbb
Attachment:
ANO-1 Cycle 23 Core Operating Limits Report (COLR)
Entergy Operations, Inc.
1448 S.R. 333 Russellville, AR 72802 Tel 479-858-4710 David B. Bice Acting Manager, Licensing Arkansas Nuclear One
1CAN041001 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. Kaly Kalyanam MS O-8 B1 One White Flint North 11555 Rockville Pike Rockville, MD 20852 Mr. Bernard R. Bevill Arkansas Department of Health Radiation Control Section 4815 West Markham Street Slot #30 Little Rock, AR 72205
1CAN041001 ANO-1 Cycle 23 Core Operating Limits Report (COLR)
CYCLE 23 COLR CALC-ANO1-NE-09-00005 ANO-1 1
Rev. 0 ENTERGY OPERATIONS ARKANSAS NUCLEAR ONE UNIT ONE CYCLE 23 CORE OPERATING LIMITS REPORT
CYCLE 23 COLR CALC-ANO1-NE-09-00005 ANO-1 2
Rev. 0 1.0 CORE OPERATING LIMITS This Core Operating Limits Report for ANO-1 Cycle 23 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
- 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 23 Limits and Setpoints, Areva Doc. No. 86-9131203-000, February 4, 2010.
- 6.
Arkansas Nuclear One, Unit 1, Cycle 23 Reload Report, ANP-2897, Rev. 0, March 2010 (CALC-ANO1-NE-09-00003).
- 7.
ANO-1 Refueling Boron for 1R22 Justification with Core Redesign, CALC-NEAD-SR-10/017, Rev. 0.
- 8.
IC (Initial Condition) DNB RCS Protection Criteria, CALC-96-E-0023-02, Rev. 7.
- 9.
Arkansas Nuclear One Unit 1, Cycle 23 Reload Technical Document (RTD), Areva Doc. No. 51-9126250-000, March 2010 (CALC-ANO1-NE-09-00004).
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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-PUMP 590 600 610 620 630 640 650 2300 2200 2100 2000 1900 1800 1700 Reactor Coolant Outlet Temperature, °F Core Outlet Pressure, psig
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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)
(-59.06, 102.21)
(-59.06, 77.61)
(-59.06, 51.41)
(-59.06, 0.0)
(58.16, 104.70)
(58.16, 80.10)
(58.16, 53.90)
(58.16, 0.0)
(47.65, 112.0)
(47.65, 87.4)
(47.65, 61.2)
(-46.92, 112.0)
(-46.92, 87.40)
(-46.92, 61.20)
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.
120 100 80 60 40 20 0
-70
-60
-50
-40
-30
-20
-10 0
10 20 30 40 50 60 70
(-59.06, 102.21)
(-59.06, 77.61)
(-59.06, 51.41)
(-59.06, 0.0)
(58.16, 104.70)
(58.16, 80.10)
(58.16, 53.90)
(58.16, 0.0)
(47.65, 112.0)
(47.65, 87.4)
(47.65, 61.2)
(-46.92, 112.0)
(-46.92, 87.40)
(-46.92, 61.20)
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.
120 100 80 60 40 20 0
-70
-60
-50
-40
-30
-20
-10 0
10 20 30 40 50 60 70
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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.
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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)
- Operating rod group overlap is 20% +/- 5% 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, 1.5)
(46.5, 20)
(86.5, 58)
(124.2, 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 OPERATING 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*
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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)
- Operating rod group overlap is 20% +/- 5% 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, 0.0)
(99.5, 20)
(167.5, 58)
(206.3, 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 OPERATING 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*
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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)
- Operating rod group overlap is 20% +/- 5% 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)
(46.5, 15)
(86.5, 43.5)
(124.8, 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 OPERATING 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*
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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)
- Operating rod group overlap is 20% +/- 5% 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, 0.0)
(99.5, 15)
(167.5, 43.5)
(206.8, 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 OPERATING 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*
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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)
- Operating rod group overlap is 20% +/- 5% 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)
(46.5, 10)
(86.5, 29)
(125.9, 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 OPERATING 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*
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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)
- Operating rod group overlap is 20% +/- 5% 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, 0.1)
(99.5, 10)
(167.5, 29)
(208.0, 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 OPERATING 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*
CYCLE 23 COLR CALC-ANO1-NE-09-00005 ANO-1 14 Rev. 0 AXIAL POWER SHAPING RODS (APSR) INSERTION LIMITS (Figure is referred to by Technical Specification 3.2.2)
Up to 482 +/- 10 EFPD, the APSRs may be positioned as necessary for transient imbalance control. However, the APSRs shall be fully withdrawn by 492 EFPD. After the APSR withdrawal at 482 +/- 10 EFPD, the APSRs shall not be reinserted.
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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)
(-30.13, 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
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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)
(-21.45, 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
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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)
(-24.30, 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
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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)
(-30.41, 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
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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 Axial Power Imbalance, %FP RESTRICTED REGION PERMISSIBLE OPERATING REGION
(-28.17, 30)
(-27.82, 40)
(26.07, 30)
(-22.26, 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 Power, % of 2568 MWt
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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 Axial Power Imbalance, %FP RESTRICTED REGION PERMISSIBLE OPERATING REGION
(-31.26, 30)
(-30.94, 40)
(28.87, 30)
(-25.07, 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 Power, % of 2568 MWt
CYCLE 23 COLR CALC-ANO1-NE-09-00005 ANO-1 24 Rev. 0 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 4.35 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.
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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, 16.2)
(62000, 12.5)
Linear Heat Rate Limit (KW/ft)
Burnup (MWd/mtU) 19 18 17 16 15 14 13 12 11 0
10000 20000 30000 40000 50000 60000 70000 X
X (62000, 11.8)
CYCLE 23 COLR CALC-ANO1-NE-09-00005 ANO-1 26 Rev. 0 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 the Mark-B-HTP fuel 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 Notes
- 1. The values above are not error corrected.
- 2. The values above were generated using SCD methods which incorporate a 3.8% radial peak uncertainty in the DNBR design limit. Therefore, the above IC MAP limits can be compared to predicted peaks without the addition of up to 3.8% in radial peak calculation uncertainty. These limits, however, do not incorporate any grid bias uncertainty.
- 3. 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
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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
-30
-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
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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 560 580 600 620 640 660 Reactor Outlet Temperature, °F Reactor Coolant Pressure, psig P = 1800 psig P = 2355 psig T = 618 °F P = (16.25 Tout - 8063) psig ACCEPTABLE OPERATION UNACCEPTABLE OPERATION
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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 (Mlbm/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 Tcold = 556.57 °F.
Note 7 -- For Tcold = 556.3 °F.
Note 8 -- For Tcold = 556.1 °F.
Note 9 -- For Tcold = 580 °F.
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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
- Technical Specification 3.4.4 does not allow indefinite operation in Modes 1 and 2 with only two pumps operating.
CYCLE 23 COLR CALC-ANO1-NE-09-00005 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 2380 ppm.