1CAN100201, Cycle 18 COLR

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Cycle 18 COLR
ML022890335
Person / Time
Site: Arkansas Nuclear Entergy icon.png
Issue date: 10/10/2002
From: Cotton S
Entergy Operations
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
1CAN100201
Download: ML022890335 (33)
v • d • e


Text

Entergy Operations, Inc.

JJLn~tergy 1448 SR 333 Russellville, AR 72802 Tel 501 858 5000 1CAN100201 October 10, 2002 U. S. Nuclear Regulatory Commission Document Control Desk Mail Station OP1-17 Washington, DC 20555

Subject:

Arkansas Nuclear One - Unit 1 Docket No. 50-313 License No. DPR-51 ANO-1 Cycle 18 COLR

Dear Sir or Madam:

Arkansas Nuclear One - Unit I (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 18 COLR. Please note that the approved revision number of the Babcock and Wilcox Topical Report BAW-10179P-A is identified in the COLR as August 2001. 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, Sherrie R. Cotton Director, Nuclear Safety Assurance SRC/dbb

Attachment:

ANO-1 Cycle 18 Core Operating Limits Report (COLR)

I CAN100201 Page 2 of 2 cc: Mr. Ellis W. Merschoff 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.O. Box 310 London, AR 72847 Mr. William Reckley NRR Project Manager Region IV/ANO-1 U. S. Nuclear Regulatory Commission NRR Mail Stop 0-7 D1 One White Flint North 11555 Rockville Pike Rockville, MD 20852

Attachment ANO-1 Cycle 18 Core Operating Limits Report (COLR)

"- I ANO Unit 1 Cycle 18 Core Operating Limits Report Page 1 of 30 CALC-01-R-1005-04 Rev. 0 ENTERGY OPERATIONS ARKANSAS NUCLEAR ONE UNIT ONE CYCLE 18 CORE OPERATING LIMITS REPORT

- ANO Unit I Cycle 18 Core Operating Limits Report Page 2 of 30 CALC-01-R-1005-04 Rev. 0 1.0 CORE OPERATING LIMITS This Core Operating Limits Report for ANO-1 Cycle 18 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 reference.

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. 4, Framatome ANP, Lynchburg, Virginia, August 2001.
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.

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 3 of"30 CALC-01 -R- 1005-04 Rev. 0 Table Of Contents Page REACTOR CORE SAFETY LIMITS Fig 1 Variable Low RCS Pressure-Temperature Protective Limits ............................. 4 Fig 2 AXIAL POWER IMBALANCE protective Limits .............................................................. 5 SHUTDOW N MARGIN (SDM ) ............................................................................................................... 6 REGULATING ROD INSERTION LIMITS Fig 3-A Regulating Rod Insertion Limits for Four-Pump Operation From 0 to 200 +/- 10 EFPD ................................................ 7 Fig 3-B Regulating Rod Insertion Limits for Four-Pump Operation From 200 +/-:10 EFPD to EOC ....................................................................................... 8 Fig 4-A Regulating Rod Insertion Limits for Three-Pump Operation From 0 to 200 +/- 10 EFPD .............................................................................................. 9 Fig 4-13 Regulating Rod Insertion Limits for Three-Pump Operation From 200 +/-:10 EFPD to EOC ............................................ 10 Fig 5-A Regulating Rod Insertion Limits for Two-Pump Operation From 0 to 200 +/-:10 EFPD ............................................ 11 Fig. 5-13 Regulating Rod Insertion Limits for Two-Pump Operation From 200 +/- 10 EFPD to EOC ........................... .......................................................... 12 AXIAL POWER SHAPING RODS (APSR) INSERTION LIMITS ............................................................ 13 AXIAL POWER IMBALANCE OPERATING LIMITS Fig 6-A AXIAL POWER IMBALANCE Setpoints for Full In-Core Conditions for Four-Pump Operation .......................................................................................................................... 14 Fig 6-B AXIAL POWER IMBALANCE Setpoints for Minimum In-Core Conditions for Four-Pum p Operation ................................................................................................. 15 Fig. 6-C AXIAL POWER IMBALANCE Setpoints for Ex-Core Conditions for Four-Pump O peration ......................................................................................................................... 16 Fig. 7-A AXIAL POWER IMBALANCE Setpoints for Full In-Core Conditions for Three-Pump Operation .......................................................................................................................... 17 Fig 7-B AXIAL POWER IMBALANCE Setpoints for Minimum In-Core Conditions for Three-Pump Operation ............................................................................................... 18 Fig 7-C AXIAL POWER IMBALANCE Setpoints for Ex-Core Conditions for Three-Pump O peration ............................................................................................................... . 19 Fig 8-A AXIAL POWER IMBALANCE Setpoints for Full In-Core Conditions for Two-Pump O peration .......................................................................................................................... 20 Fig 8-B AXIAL POWER IMBALANCE Setpoints for Minimum In-Core Conditions for Two-Pum p Operation ................................................................................................... 21 Fig 8-C AXIAL POWER IMBALANCE Setpoints for Ex-Core Conditions for Two-Pump Operation .................................................... 22 QUADRANT POWER TILT LIMITS AND SETPOINTS .......................................................................... 23 POWER PEAKING FACTORS Fig 9 LOCA Linear Heat Rate Limits ............................................... 24 D N B Pow er Peaking Factors ................................................................................................................. 25 REACTOR PROTECTION SYSTEM (RPS) INSTRUMENTATION Fig. 10 RPS Maximum Allowable Setpoints for Axial Power Imbalance ........................ 26 Fig. 11 RPS Variable Low Pressure Temperature Envelope Setpoints .............................................. 27 RCS PRESSURE, TEMPERATURE, AND FLOW DNB SURVEILLANCE LIMITS ............... ............. 28 R CS LO OPS M O D E 1 AN D 2 .......................................................................................................................... 29 REFUELING BORON CONCENTRATION ........................... . .................... 30

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 4 of 30 CALC-01-R-1005-04 Rev. 0 Figure is referred to by Technical Specification 2.1.1.3 Figure 1. Variable Low RCS Pressure--Temperature Protective Limits 23nl 34*JV

-2100 0.

0 100 1 R*-WM LCP 1700 610 640 PUMPS OPERATING (TYPE OF LIMIT) GPM* POWER**

Four Pumps (DNBR Limit) 369,600 (100%) 110%

Three Pumps (DNBR Limit) 276,091 (74.7%) 89%

One Pump in Each Loop (DNBR Limit) 181,104 (49%) 62.2%

  • 105% of Design Flow (2.5% UNCERTAINTY INCLUDED IN STATISTICAL DESIGN LIMIT)
    • AN ADDITIONAL 2% POWER UNCERTAINTY IS INCLUDED IN STATISTICAL DESIGN LIMIT

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 5 of 30 CALC-01-R-1005-04 Rev. 0 Figure is referred to by Technical Specification 2.1.1 Bases Figure 2. AXIAL POWER IMBALANCE Protective Limits (measurement system independent) 120 -

(-48.9, 112.0) (50.2, 112.0) 1 ACCEPTABLE 4 PUMP '(57.0, 104.2)

(.57.8,99.9 OPERATION 100 +

(-48.9, 88.5) (50.2, 88.5):

  • 1.

ACCEPTABLE so + (57.0, 80.7) 3&4 PUMP

(-57.8,76AI OPERATION

(-48.9, 61.3) (60.2, 61.3)9 4

ACCEPTABLE 2,3&4 PUMP (57.0, 53.5)

(.57.8, 49.) OPERATION V

[ 40 0

H 20.

(-57.8, 0) (57.0, 0)

I 14. I WI I

-80 -60 -40 -20 0 20 40 60 80 Axial Power Imbalance, %

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 6 of 30 CALC-01-R-1005-04 Rev. 0 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 SHUTDOWN MARGIN (SDM)

Verify SHUTDOWN MARGIN per the table below.

REQUIRED TECHNICAL APPLICABILITY SHUTDOWN SPECIFICATION MARGIN REFERENCE MODE 1 I %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%Ak/k 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

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 7 of 30 CALC-01 -R- 1005-04 Rev. 0 01 Figure is referred to by Technical Specification 3.2.1 Figure 3-A. Regulating Rod Insertion Limits for Four-Pump Operation From 0 to 200 +/- 10 EFPD 110 100 90 j 80 70 60 0

P-4 50 40 0

30 20 10 0

0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Rod Index, % withdrawn 0 20 40 60 80 1 1 1 I GROUP 7 0 20 40 60 80 100 1 I I I I 1

GROUP 6 0 20 40 60 80 100 1 1 1 I I i R 1 I I GROUP 5

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 8 of 30 CALC-01-R-1005-04 Rev. 0 00 Figure is referred to by Technical Specification 3.2.1 Figure 3-B. Regulating Rod Insertion Limits for Four-Pump Operation From 200 +/- 10 EFPD to EOC 110 100 90 80 70 60 0

Coo 50 40 0

30 20 10 0

0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 30C Rod Index, % withdrawn 0 20 40 60 80 100 1 G 1 1 GROUP 7 0 20 40 60 80 100 1 1 G 6 1 I GROUP 6 0 20 40 60 80 100 1 1 1 I

- G 1 I I GROUP 5

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 9 of 30 CALC-01-R-1005-04 Rev. 0 Figure is referred to by Technical Specification 3.2.1 Figure 4-A. Regulating Rod Insertion Limits for Three-Pump Operation From 0 to 200 +/- 10 EFPD 110 100 OPERATION IN THIS 90- REGION IS NOT ALLOWED 80 - (264.8, 77)

S(104.5, 77) (300, 77) 70 SHUTDOWN /8 ,

MARGIN (248.5, 67)

" C 6LIMIT

\

44 .. * .(248.5, 8) c4 0 30 20- EMSIL 10 SOPERATING 171.65REGION S (0, 2.7) 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Rod Index, % withdrawn

0. 20 40 60 80 100 SI I I I I GROUP 7 0 20 40 60 80 100 III I I I GROUP 6 0 20 40 60 80 100 I I I I I I GROUP 5

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 10 of 30 CALC-01-R-1005-04 Rev. 0 Figure is referred to by Technical Specification 3.2.1 Figure 4-B. Regulating Rod Insertion Limits for Three-Pump Operation From 200 +/- 10 EFPD to EOC 110 100 90 80 70 C-4 00 60 f4 - 4 0

50 1Z 40 30 20 10 0

0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Rod Index, % withdrawn 0 20 40 60 80 100 1 R 7 I I GROUP 7 0 20 40 60 80 100 1 1 1 1 1 I GROUP 6 0 20 40 60 80 100 1 1 G 1 1 I GROUP 5

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 11 of 30 CALC-01-R-1005-04 Rev. 0 Figure is referred to by Technical Specification 3.2.1 Figure 5-A. Regulating Rod Insertion Limits for Two-Pump Operation From 0 to 200 +/- 10 EFPD 110 100 (4-.

O0 0

0 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Rod Index, % withdrawn 0 20 40 60 80 100 1 G 1 1 I GROUP 7 0 20 40 60 80 100 1 1 G 6 1 I GROUP 6 0 20 40 60 80 100 1

I 1

l R 1 1 Ij GROUP 5

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 12 of 30 CALC-01-R-1005-04 Rev. 0 Figure is referred to by Technical Specification 3.2.1 Figure 5-B. Regulating Rod Insertion Limits for Two-Pump Operation From 200 +/- 10 EFPD to EOC 110 100.

90+

80+

70 OPERATION IN THIS

(-q 60 REGION IS NOT 1265.8. 521 0 ALLOWED (207.0, 2) (300,52) 50 .

  • A MARIN/'* - OPERATION (248.5, 0 40 _.... RESTRICTED_... (248.5,38) o QD 30 20 7_
  • PERMISSIBLE 7 95.6,S) OPERATING 10.

S(0, 0.0) , , REG IO , , ,

0.

0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 Rod Index, % withdrawn 0 20 40 60 80 100 I I I I I GROUP 7 0 20 40 60 80 100 1 1 1 1 1 I GROUP 6 0 20 40 60 80 100 1 1 1 1 1 I I I I I]

GROUP 5

"ANOUnit 1 Cycle 18 Core Operating Limits Report Page 13 of 30 CALC-01-R-1005-04 Rev. 0 LIMITS ARE REFERRED TO BY TECHNICAL SPECIFICATION 3.2.2 AXIAL POWER SHAPING RODS (APSR) Insertion Limits Up to 470 +/- 10 EFPD, the APSRs may be positioned as necessary for transient imbalance control, however, the APSRs shall be fully withdrawn by 480 EFPD.

After the APSR withdrawal at 470 -10 EFPD, the APSRs shall not be reinserted.

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 14 of 30 CALC-01-R-1005-04 Rev. 0 1 Figure is referred to by Technical Specification 3.2.3 Figure 6-A. AXIAL POWER IMBALANCE Setpoints for Full In-Core Conditions for Four-Pump Operation 110 T

(.22.08, 102) 4.

21.53, 102) 100 4

(-27.58,92) (27.36,.92) 90+

(-33.9 9,8 80+ 33.87, 80) 704-(-34.22, 604 60+ (34.13,60)

O0 00 404 RESTRICTED P_(

REGION RESTRICTED PERMISSIBLE PERMISSIBLE REGION OPERATING 30+ OPERATING REGION REGION 20+

10+

I I-0-a . I I I I

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

- ANO Unit 1 Cycle 18 Core Operating Limits Report Page 15 of 30 CALC-01-R-1005-04 Rev. 0 Figure is referred to by Technical Specification 3.2.3 Figure 6-B. AXIAL POWER IMBALANCE Setpoints for Minimum In Core Conditions* for Four-Pump Operation 110

(-13.71, 102) (13.37, 102)

(-18.74, 92) (1.66, 92) 90

(.24.74, 80 80 (24.74, 90) 70

(-25.44, 60) 60 (25.44, 60)

'0 0 50 A-4 40 RESTRICTED 0 RESTRICTED REGION REGION PERMISSIBLE PERMISSIBLE OPERATING 30 OPERATING REGION REGION 20 10

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

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 Unit 1 Cycle 18 Core Operating Limits Report Page 16 of 30 CALC-0 1-R- 1005-04 Rev. 0 Figure is referred to by Technical Specification 3.2.3 Figure 6-C. AXIAL POWER IMBALANCE Setpoints for Excore Conditions for Four-Pump Operation

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

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 17 of 30 CALC-01-R-1005-04 Rev. 0 Figure is referred to by Technical Specification 3.2.3 Figure 7-A. AXIAL POWER IMBALANCE Setpoints for Full In-Core Conditions for Three-Pump Operation 110 100 90 80

(.22.36, 70 (34.01,69)

(-34.22,60), 60 1(34.13, 60) 50

(-34.39, 46)1 4-4 40 RESTRICTED 0 RESTRICTED REGION PERMISSIBLE REGION PERMISSIBLE OPERATING 30 OPERATING REGION REGION 0

0.

20 10

-50 -40 -30 -20 -10 0 10 20 30 40 50

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 18 of 30 CALC-01-R-1005-04 Rev. 0 Figure is referred to by Technical Specification 3.2.3 Figure 7-B. AXIAL POWER IMBALANCE Setpoints for Minimum In Core Conditions* for Three-Pump Operation 110 100 90 80

(.14.39, 77) (14.05,77) 70 (24.78, 69)

(.25.44, 60 (25.44, 60) 50

(.25.97, 45) (25.97, 45) 0o 40 RESTRICTED RESTRICTED REGION t-. REGION PERMISSIBLE PERMISSIBLE OPERATING 30 OPERATING 0

REGION REGION 20 10

-50 -40 -30 -20 -10 0 10 20 30 40 50 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 Unit 1 Cycle 18 Core Operating Limits Report Page 19 of 30 CALC-01-R-1005-04 Rev. 0 Figure is referred to by Technical Specification 3.2.3 Figure 7-C. AXIAL POWER IMBALANCE Setpoints for Ex-Core Conditions for Three-Pump Operation 110 -

100 4 90-I 80+

(-16.72, 77)

(.16.22. 77)

(.28.12,69) 70+

S((28.02, 69)

(.28.43, 60), 60+ (28.33, 60)

(-28.92, 45) 1(28.84,45) 40+/-

N RESTRICTED RESTRICTED 0 REGION PERMISSIBLE REGION PERMISSIBLE OPERATING 30+/- OPERATING REGION REGION 914 0

204.

10 -I

-50 -40 -30 -20 -100 10 20 30 40 so

ANO Unit I Cycle 18 Core Operating Limits Report Page 20 of 30 CALC-01-R-1005-04 Rev. 0 Figure is referred to by Technical Specification 3.2.3 Figure 8-A. AXIAL POWER IMBALANCE Setpoints for Full In-Core Conditions for Two-Pump Operation 110 100+

90g 80o-I 70-604-(-22.65, 52! (22.17, 52)

+

504-(-34.38, 461 (34.31,46)

(-34.44, 40)1 ,0~ 404- 4 (34.38,40) 00 PERMISSIBLE PERMISSIBLE

(-34.56, 30)# OPERATING 304- OPERATING (34.51, 30) oo REGION ý0 REGION Po RESTRICTED 20+ RESTRICTED REGION REGION 10+

-50 40 -30 -20 -10 0 10 20 30 40 50

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 21 of 30 CALC-01-R-1005-04 Rev. 0 Figure is referred to by Technical Specification 3.2.3 Figure 8-B. AXIAL POWER IMBALANCE Setpoints for Minimum In Core Conditions* for Two-Pump Operation 110 100 90 80 70 60

(-15.19, 62) (14.82, 62)

(-25.51, (25.48,46)

(-26.14, 40) 0 40 ý(26.14, 40) 0ý kn PERMISSIBLE N PERMISSIBLE

(-26A9, 30) OPERATING 30 OPERATING (26.49, 30)

C" REGION f REGION 0

RESTRICTED 20 RESTRICTED REGION REGION 10

-50 -40 -30 -20 -10 0 10 20 30 40 50 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 Unit I Cycle 18 Core Operating Limits Report Page 22 of 30 CALC-01-R-1005-04 Rev. 0 Figure is referred to by Technical Specification 3.2.3 Figure 8-C. AXIAL POWER IMBALANCE Setpoints for Ex-Core Conditions for Two-Pump Operation 110 100 90 80 70 60

(-17.54, 52) 17.06, 52)

(-28.89,, (28.81, 46) 00 40 (29.01,40)

PERMISSIBLE PERMISSIBLE

(-29.40, 30) OPERATING 0 30 OPERATING (29.34, 30)

REGION REGION 0*

RESTRICTED 20 REGION P- RESTRICTED REGION 10

-50 -40 -30 -20 -10 0 10 20 30 40 50

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 23 of 30 CALC-01-R-1005-04 Rev. 0 LIMITS ARE REFERRED TO BY TECHNICAL SPECIFICATION 3.2.4 Quadrant Power Tilt Limits And Setpoints From 0 EFPD to EOC Measurement System Steady State Value (%) Maximum Value (%)

_<60 %RTP >60 %RTP Full In-core Detector 6.83 4.44 25.0 System Setpoint Minimum In-core 2.78* 1.90* 25.0 Detector System Setpoint Ex-core Power Range NI 4.05 1.96 25.0 Channel Setpoint Measurement System 7.50 4.92 25.0 Independent Limit 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 Unit 1 Cycle 18 Core Operating Limits Report Page 24 of 30 CALC-01-R-1005-04 Rev. 0 Figure is referred to by Technical Specification 3.1.8 and 3.2.5 Figure 9. LOCA Linear Heat Rate Limits 19 18 17 6.021-ft (46000, 16.6)

(45000, 16.3) 2 4-264 and 7.779-(45000, 15.4) g 16 0and 12-ft

  • 14 13 (62000, 12.5) 12 11 . . . . . . . .

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

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 25 of 30 CALC-01-R-1005-04 Rev. 0 LIMIT IS REFERRED TO BY TECHNICAL SPECIFICATION 3.1.8 and 3.2.5 DNB Power Peaking Factors 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 Total Peak Axial Axial Peak 4 - Pump 3 - Pump Peak Location Operation Operation X/L 1.1 0.2 2.028 2.028 1.1 0.4 2.021 2.021 1.1 0.6 2.008 2.008 1.1 0.8 1.985 1.985 1.3 0.2 2.515 2.515 1.3 0.4 2.486 2.486 1.3 0.6 2.411 2.411 1.3 0.8 2.252 2.252 1.5 0.2 2.973 2.973 1.5 0.4 2.786 2.786 1.5 0.6 2.596 2.596 1.5 0.8 2.422 2.422 1.7 0.2 3.117 3.117 1.7 0.4 2.921 2.921 1.7 0.6 2.727 2.727 1.7 0.8 2.560 2.560 1.9 0.2 3.237 3.237 1.9 0.4 3.024 3.024 1.9 0.6 2.841 2.841 1.9 0.8 2.675 2.675 iNote - me values aoove nave not oeen error correctea 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:

I P/P = 1.00 P/Pro < 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 Unit 1 Cycle 18 Core Operating Limits Report Page 26 of 30 CALC-01-R-1005-04 Rev. 0 Figure is referred to by Technical Specification 2.1.1.1, 2.1.1.2, and 3.3.1 Figure 10. Reactor Protection System Maximum Allowable Setpoints for Axial Power Imbalance 120 -

(-35.2, 107) (35.7. 1071-f.

  • i "

100 ACCEPTABLE 4 PUMP (46.1, 94.7)

(47.1, 90.4 OPERATION I-i

(-35.2, 79.9) (36.7, 79.9)-

0 ACCEPTABLE 3&4 PUMP (46.1,67.6)

H-(-47.1, 63.3) OPERATION 604-(-352. 52.41 (35.7, 62.4) 4 ACCEPTABLE 2,3&4 PUMP 404- (46.1,40.1)

OPERATION

(-47.1, 35.8) 204-(47.1,0) (46.1, 0)

I U

-80 -60 -40 -20 0 20 40 60 80 Axial Power Imbalance, %

Flux / Flow Setpoint

(% Power / % Flow)

Four Pump Operation 1.07 Three Pump Operation 1.07 Two Pump Operation 1.07

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 27 of 30 CALC-01-R-1005-04 Rev. 0 Figure is referred to by Technical Specification 3.3.1 Figure 11. Reactor Protection System Variable Low Pressure Temperature Envelope Setpoints 2400 Y I. I. Y P=2355 PcIG .T'=618 *F

' 2200 ACCEPTABLE -UNACCEPTABLE 0f OPERATION OPERATION cc I

ao0 2000 P = (16.25 Tout - 8063) p sig u.9 9 LU a,)

>4 1800 i  !~ mei P=1800 PSIG 1600 & 1.

560 580 600 620 640 660 Reactor Outlet Temperature, OF

ANO Unit I Cycle 18 Core Operating Limits Report Page 28 of 30 CALC-01-R-1005-04 Rev. 0 LIMIT IS REFERRED TO BY TECHNICAL SPECIFICATION 3.4.1 RCS Pressure, Temperature, and Flow DNB Surveillance Limits Four-Pump Three-Pump Two-Pump Operation Operation Operation Minimum RCS Hot Leg Pressure 2065.7 2063.9 Note 4 2099.1 (psig)Note 1 2 10 0 .9Note5 Maximum RCS Hot Leg Temperature 603.45 603.55 604.00 (OF) Note 2 Minimum RCS Total Flow 138. 1 0 Note 6 1 0 3 .3 6 Note7 68.06 Note 8 (Mlbm/hr) Note 3 1 3 2 . 9 6 Note9 99.50 Note 9 65.48 Note 9 Note 1 - Using individual indications P1021, P1023, P1038 and P1039 (or equivalent) from the plant computer Note 2 - Using individual indications T1011NR, TI014NR, 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 T ..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 = 555.79°F.

Note 7 -- For Tcold = 555 69°F.

Note 8 -- For Tcold = 555.31IF.

Note 9 -- For Tcold = 580'F.

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 29 of 30 Rev.

Page CALC-01-R-1005-04 Rev. 0 LIMIT IS REFERRED TO BY TECHNICAL SPECIFICATION 3.4.4 RCS Loops - Mode I and Mode 2 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.

29

"- ANO Unit 1 Cycle 18 Core Operating Limits Report Page 30 of 30 CALC-0 1-R-1005-04 Rev. 0 LIMIT IS REFERRED TO BY TECHNICAL SPECIFICATION 3.9.1 Refueling Boron Concentration The minimum required boron concentration (which includes uncertainties) for use during refueling as a function of EFPD is:

EOC 17 EFPD ppm 520 2433 522 2430 524 2427 526 2424 528 2421 530 2418 532 2415 534 2412 536 2409

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