1CAN111104, Arkansas Nuclear One - Unit 1, ANO-1 Cycle 24 Core Operating Limits Report (Colr), Revision 2: Difference between revisions

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#REDIRECT [[1CAN111104, Unit 1, ANO-1 Cycle 24 Core Operating Limits Report (Colr), Revision 2]]
| number = ML113290028
| issue date = 11/23/2011
| title = Arkansas Nuclear One - Unit 1, ANO-1 Cycle 24 Core Operating Limits Report (Colr), Revision 2
| author name = Pyle S L
| author affiliation = Entergy Operations, Inc
| addressee name =
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000313
| license number = DPR-051
| contact person =
| case reference number = 1CAN111104
| document type = Fuel Cycle Reload Report, Letter type:
| page count = 33
}}
 
=Text=
{{#Wiki_filter:1CAN111104  
 
November 23, 2011
 
U.S. Nuclear Regulatory Commission
 
Attn: Document Control Desk
 
Washington, DC  20555
 
==Subject:==
ANO-1 Cycle 24 COLR, Revision 2 Arkansas Nuclear One - Unit 1  
 
Docket No. 50-313
 
License No. DPR-51
 
==References:==
: 1. Entergy letter dated October 31, 2011, "ANO-1 Cycle 24 COLR" (1CAN101101)
: 2. Entergy letter dated November 11, 2011, "ANO-1 Cycle 24 COLR, Revision 1" (1CAN111103)
 
==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, including submittal of any revisions or supplements that may occur
 
following initial issuance. Attached is Revision 2 of the ANO-1 Cycle 24 COLR.
 
During startup and power ascension from ANO-1 Refueling Outage 1R23 (Fall 2011), the
 
quadrant power tilt was found to be slightly larger than anticipated, creating the possibility
 
that the tilt may not remain within allowed steady state values for operation above 60% full
 
power, as presented in the Cycle 24 COLR. Based on this condition, an additional
 
reference and a change in the full incore detector system steady-state setpoint quadrant
 
power tilt limit for operation above 60% fu ll power within the Cycle 24 COLR was necessary. The revision increases the allowable tilt above 60% full power by using the
 
available target margin from the previous calcul ations. No other information or limit in the COLR was affected.
 
Please note that the latest approved revision number of the Babcock and Wilcox Topical
 
Report BAW-10179P-A is identified in the COLR as Revision 8, May 2010. 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.
 
Entergy Operations, Inc.
1448 S.R. 333 Russellville, AR  72802
 
Tel 479-858-4704 Stephenie L. Pyle Manager, Licensing A rkansas Nuclear One 1CAN111104 Page 2 of 2
 
This submittal contains no regulatory commitments. Should you have any questions, please contact me.
 
Sincerely, Original signed by Stephenie L. Pyle SLP/dbb
 
==Attachment:==
ANO-1 Cycle 24 Core Operating Limits Report (COLR), Revision 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
 
Attachment to 1CAN111104 ANO-1 Cycle 24 Core Operating Limits Report (COLR), Revision 2
 
CYCLE 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 1 Rev. 2
 
ENTERGY OPERATIONS ARKANSAS NUCLEAR ONE UNIT ONE  CYCLE 24  CORE OPERATING LIMITS REPORT
 
CYCLE 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 2 Rev. 2 1.0 CORE OPERATING LIMITS This Core Operating Limits Report for ANO-1 Cycle 24 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 Analyses," BAW-10179P-A, Rev. 8, Framatome ANP, Inc., Lynchburg, Virginia, May 2010. 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 24 Limits and Setpoints," Areva Doc. No. 86-9158676-000, July 27, 2011.
: 6. "Arkansas Nuclear One, Unit 1, Cycle 24 Reload Report," ANP-3033, Rev. 1, November, 2011 (CALC-ANO1-NE-11-00001).
: 7. "ANO-1 Refueling Boron for 1R23," CALC-NEAD-SR-11/016, Rev. 0. 8. "IC (Initial Condition) DNB RCS Protection Criteria," CALC-96-E-0023-02, Rev. 7.
: 9. "Arkansas Nuclear One Unit 1, Cycle 24 Reload Technical Document (RTD)," Areva Doc.
No. 51-9165384-000, October, 2011 (CALC-ANO1-NE-11-00003). 10. "ANO-1 Cycle 24 Increased Quadrant Power Tilt Setpoint for Greater than 60% FP," Areva Doc. No. 86-9172947-000, November, 2011.
 
CYCLE 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 3 Rev. 2 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 4 Rev. 2 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................................................................................30
 
CYCLE 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 5 Rev. 2 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 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 1 PUMP EACH LOOP CYCLE 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 6 Rev. 2 Figure 2  AXIAL POWER IMBALANCE Protective Limits (measurement system independent)
(Figure is referred to by Technical Specification 2.1.1 Bases)
 
-70      -60      -50      -40      -30      -20      -10        0        10      20        30        40        50 60        70
(-58.84, 102.21)
 
(-58.84, 77.61)
 
  (-58.84, 51.41)
 
  (-58.84, 0.0)
(-46.73, 112.0)
 
(-46.73, 87.40)
 
(-46.73, 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 (47.49, 112.0)
 
(47.49, 87.40)
 
  (47.49, 61.20)
(57.98, 104.70)
 
(57.98, 80.10)
 
  (57.98, 53.90)
 
  (57.98, 0.0)
CYCLE 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 7 Rev. 2 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 8 Rev. 2 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% betw een 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, 3.9)
(51.5, 20)
(89.5, 58)
(142.9, 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 9 Rev. 2 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% betw een 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, 1.4)
(96.5, 20)
(166.5, 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 10 Rev. 2 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% betw een 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, 2.9)
(51.5, 15)
(89.5, 43.5)
(143.7, 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 11 Rev. 2 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% betw een 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, 1.1)
(96.5, 15)
(166.5, 43.5)
(206.9, 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 12 Rev. 2 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% betw een 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, 2.0)
(51.5, 10)
(89.5, 29)
(145.4, 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 13 Rev. 2 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% betw een 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)
(96.5, 10)
(166.5, 29)
(208.1, 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 14 Rev. 2 AXIAL POWER SHAPING RODS (APSR) INSERTION LIMITS (Figure is referred to by Technical Specification 3.2.2)
 
Up to 436 +/- 10 EFPD, the APSRs may be positioned as necessary for transient imbalance control. However, the APSRs shall be fully withdrawn by 446 EFPD. After the APSR withdrawal at 436 +/- 10 EFPD, the APSRs shall not be reinserted, except prior to end of cycle shutdown when the reactor power is equal to, or less than, 30% FP.
 
CYCLE 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 15 Rev. 2 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 16 Rev. 2 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 (short) emitter detector affecting the minimum incore tilt calculation exceeds 73% (68%) 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 17 Rev. 2 Figure 6-C AXIAL POWER IMBALANCE Setpoints for Ex-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 (-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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 18 Rev. 2 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 19 Rev. 2 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 (short) emitter detector affecting the minimum incore tilt calculation exceeds 73% (68%) 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 20 Rev. 2 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 21 Rev. 2 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 22 Rev. 2 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 (short) emitter detector affecting the minimum incore tilt calculation exceeds 73% (68%) 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 23 Rev. 2 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 24 Rev. 2 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 6.33 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 (short) emitter detector affecting the minimum in-core tilt calculation exceeds 73% (68%) 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 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 25 Rev. 2 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 (34000, 17.4) 6.021 ft (34000, 17.3) 4.264 ft (34000, 17.2) 9.536 ft (34000, 17.1) 2.506 ft (34000, 17.0) 12 ft (34000, 16.2) 0 ft (34000, 16.2)
(62000, 12.5)
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 (62000, 11.8)
CYCLE 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 26 Rev. 2 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 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 ar e 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 des ign radial-local peak for power levels below 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 CYCLE 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 27 Rev. 2 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 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 CYCLE 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 28 Rev. 2 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 , &deg;F Reactor Coolant Pressure
, p si g P = 1800 psig P = 2355 psig T = 618 &deg;F P = (16.25 Tout - 8063) psig ACCEPTABLE OPERATION UNACCEPTABLE OPERATION CYCLE 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 29 Rev. 2 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 (&deg;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 &deg;F.
 
Note 7 -- For T cold = 556.3 &deg;F.
 
Note 8 -- For T cold = 556.1 &deg;F.
 
Note 9 -- For T cold = 580 &deg;F.
 
CYCLE 24 COLR CALC-ANO1-NE-11-00002
 
ANO-1 30 Rev. 2 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.
 
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 2303 ppm.}}

Latest revision as of 16:14, 12 April 2019

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