ANO-1 Cycle 18 COLR. · ANO Unit 1 Cycle 18 Core Operating Limits Report CALC-01-R-1005-04 Page 8 of 30 Rev. 0 Figure is referred to by Technical Specification 3.2.1 Figure 3-B. 110

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 CALC-01-R-1005-04

ENTERGY OPERATIONS

ARKANSAS NUCLEAR ONE UNIT ONE

CYCLE 18

CORE OPERATING LIMITS REPORT

Page 1 of 30 Rev. 0

- 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-10179PA, 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 ML0 13390204.

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 M ARGIN (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 O peration .......................................................................................................................... 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 O peration .......................................................................................................................... 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 L O O PS M O D E 1 A N D 2 .......................................................................................................................... 29 REFUELING BORON CONCENTRATION ........................... . .................... 30

ANO Unit 1 Cycle 18 Core Operating Limits Report CALC-01-R-1005-04

Figure is referred to by Technical Specification 2.1.1.3

Figure 1.

23nl

-2100

0.

0

100

1700610 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

Page 4 of 30 Rev. 0

Variable Low RCS Pressure--Temperature Protective Limits

34*JV

1 R•-WM LCP


Page 5 of 30 Rev. 0

Figure is referred to by Technical Specification 2.1.1 Bases

Figure 2. AXIAL POWER IMBALANCE Protective Limits (measurement system independent)

(-48.9, 112.0)

ACCEPTABLE 4 PUMP OPERATION

(-48.9, 88.5)

ACCEPTABLE 3&4 PUMP OPERATION

(-48.9, 61.3)

ACCEPTABLE 2,3&4 PUMP OPERATION

I �14. I WI I

-40 -20

Axial Power Imbalance, %

120 -

1�(50.2, 112.0)

100 +

*1.(50.2, 88.5):

so +

(.57.8,99.9

(-57.8,76AI

(.57.8, 49.)

(-57.8, 0)

4

(60.2, 61.3)9

'(57.0, 104.2)

(57.0, 80.7)

(57.0, 53.5)

(57.0, 0)

V [ 40 0

H 20.

-80 -60 0 20 40 60 80


Page 6 of 30 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 *Requires actual shutdown margin to be > 1 %Ak/k.

ANO Unit 1 Cycle 18 Core Operating Limits Report CALC-01 -R- 1005-04

Page 7 of 30 Rev. 0

Figure is referred to by Technical Specification 3.2.1

Figure 3-A.

110

100

90 j

0

0

P-4

80

70

60

50

40

30

20

10

0

Regulating Rod Insertion 0 to 200 ± 10 EFPD

Limits for Four-Pump Operation From

0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300

Rod Index, % withdrawn

0

20 40 60 80 I I I 1

GROUP 6100

I

0 1

20 1

0 1

40 1

20 1

60 1

80 I

80 1

40 60 R 1

GROUP 5

GROUP 7100

I

01

I II i


Page 8 of 30 Rev. 0


Figure 3-B.

110

100

90

80

0

0

Coo

70

60

50

40

30

20

10

0

Regulating Rod Insertion Limits for Four-Pump Operation From 200 ± 10 EFPD to EOC

0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 30C


0

0 1

0 1

20 1

40 60 G 1

GROUP 5

20 1

80 1

40 60 G 6

GROUP 6

20 1

80 1

40 60 G 1

GROUP 7

80 1

100

100 I

100 I

I I-4--

00

ANO Unit 1 Cycle 18 Core Operating Limits Report Page 9 of 30 CALC-01-R-1005-04 Rev. 0


Figure 4-A. Regulating Rod Insertion Limits for Three-Pump Operation From 0 to 200 ± 10 EFPD

110

100OPERATION 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 SOPERATING

171.65REGION 10

S (0, 2.7)

0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300


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


Page 10 of 30 Rev. 0


Figure 4-B.

110

100

90

80

00 C-4

f4 -4 0

1Z

70

60

50

40

30

20

10

0

Regulating Rod Insertion Limits for Three-Pump Operation From 200 ± 10 EFPD to EOC

0 20 40 60 80 100 120 140 160 180 200 220 240 260


0

0 1

20 1

40 1

60 1

20 1

80 1

40 60 R 7

GROUP 7

100 I

GROUP 60 1

20 1

40 60 G 1

GROUP 5

80 1

100 I

280 300

80 I

100 I




Figure 5-A.

110

100

(4-.

O0

0

0

Regulating Rod Insertion Limits for Two-Pump Operation From 0 to 200 ± 10 EFPD

0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300


0

0 1

0 1

20 1

40 60 R 1

GROUP 5

20 1

80 1

40 60 G 6

GROUP 6

20 1

80 1

40 60 G 1

GROUP 7

80 1

100 I

100 I

100

IjI l




Figure 5-B.

110

100.

Regulating Rod Insertion Limits for Two-Pump Operation From 200 ± 10 EFPD to EOC

90+

80+

70

60(-q

0

0 QD o

50 .

40

30

20

10.

0.0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300


0

40 1

60 1

20 40 60 80 100 I I I I I

80 1

100 I

GROUP 6

I I I I] GROUP 5

OPERATION IN THISREGION IS NOT 1265.8. 521

ALLOWED (207.0, 2) (300,52)

• A _.... - OPERATION (248.5, MARIN/'• RESTRICTED_... (248.5,38)

7_ • PERMISSIBLE

7 95.6,S) OPERATING S(0, 0.0) , , REG IO , , ,

0 1

0 1

20 1

20 1

40 1

60 1

80 1

GROUP 7

100 I

"ANO Unit 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.


Page 14 of 30 Rev. 0 1


Figure 6-A. AXIAL POWER IMBALANCE Setpoints for Full In-Core Conditions for Four-Pump Operation

110 T

(-33.9

(.22.08, 102)

(-27.58,92)

9,8

RESTRICTED

REGION

I I-0 -50 -40

(-34.22, 604

4.100 4

90+

80+

O0

0 0

P_(

PERMISSIBLE OPERATING

REGION

21.53, 102)

(27.36,.92)

33.87, 80)

704-

60+

404

30+PERMISSIBLE

OPERATING REGION

20+

10+

(34.13,60)

RESTRICTED REGION

-a . I I I I


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

- ANO Unit 1 Cycle 18 Core Operating Limits Report CALC-01-R-1005-04



Figure 6-B. AXIAL POWER IMBALANCE Setpoints for Minimum InCore Conditions* for Four-Pump Operation

110

(-13.71, 102)

(-18.74, 92)

(.24.74, 80

(-25.44, 60)

RESTRICTED REGION

90

80

70

'0

0

0

A-4


REGION

60

50

40

30

20

10

(13.37, 102)

(1.66, 92)

(24.74, 90)

(25.44, 60)

RESTRICTED REGION


REGION

-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 CALC-0 1-R- 1005-04



Figure 6-C. AXIAL POWER IMBALANCE Setpoints for Excore Conditions for Four-Pump Operation

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

Axial Power Imbalance, %20 30 40 50




Figure 7-A.

(-34.22,60),

(-34.39, 46)1

RESTRICTED REGION

AXIAL POWER IMBALANCE Setpoints for Full In-Core Conditions for Three-Pump Operation

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

110

100

90

(.22.36,80

70

60

4-4

0

0 0.

(34.01,69)

1(34.13, 60)

RESTRICTED REGIONPERMISSIBLE

OPERATING REGION

50

40

30

20


REGION

10



Figure 7-B. AXIAL POWER IMBALANCE Setpoints for Minimum InCore Conditions* for Three-Pump Operation

110

100

90

80(.14.39, 77)

70

(.25.44,

(.25.97, 45)

RESTRICTED REGION

60

50


REGION

0o

0

t-.

40

30

20

10

(14.05,77)

(24.78, 69)

(25.44, 60)


REGION

(25.97, 45)

RESTRICTED REGION

-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





Figure 7-C. AXIAL POWER IMBALANCE Setpoints for Ex-Core Conditions for Three-Pump Operation

110 -

100 4

90-I

(-16.72, 77)

(.28.12,69)

(.28.43, 60),

(-28.92, 45)


REGION

N 0

0 914

80+

70+

60+

(.16.22. 77)

S((28.02, 69)

(28.33, 60)

40±

30±PERMISSIBLE

OPERATING REGION

204.

10 -I

1(28.84,45)

RESTRICTED REGION

-50 -40 -30

RESTRICTED REGION

-20 -100 1 0 20 30 40 so

ANO Unit I Cycle 18 Core Operating Limits Report CALC-01-R-1005-04



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!


REGION

+504-

(22.17, 52)

(34.31,46)

404-

00

ý0

,0~

oo

Po

304-PERMISSIBLE OPERATING

REGION

20+

10+

(34.38,40)

(34.51, 30)

RESTRICTED REGION

-50 40 -30 -20 -10

(-34.38, 461

(-34.44, 40)1

(-34.56, 30)#

RESTRICTED REGION

4

0 10 20 30 40 50




Figure 8-B. AXIAL POWER IMBALANCE Setpoints for Minimum InCore Conditions* for Two-Pump Operation

110

100

90

80

70

60

(-15.19, 62)

(-25.51,

(-26.14, 40)

PERMISSIBLE (-26A9, 30) OPERATING

f REGION

RESTRICTED REGION

0 0ý

kn N

C"

0

40

30

20

10

(14.82, 62)

(25.48,46)


REGION

ý (26.14, 40)

(26.49, 30)

RESTRICTED REGION

-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 CALC-01-R-1005-04



Figure 8-C. AXIAL POWER IMBALANCE Setpoints for Ex-Core Conditions for Two-Pump Operation

110

100

90

80

70

60

(-17.54, 52)

(-28.89,,

40

(-29.40, 30)

RESTRICTED REGION

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

17.06, 52)


REGION

00

0

0•

P-


REGION30

20

(28.81, 46)

(29.01,40)

(29.34, 30)

RESTRICTED REGION

10



LIMITS ARE REFERRED TO BY TECHNICAL SPECIFICATION 3.2.4

Quadrant Power Tilt Limits And Setpoints

From 0 EFPD to EOCMeasurement System

Full In-core Detector System Setpoint

Minimum In-core Detector System Setpoint

Ex-core Power Range NI Channel Setpoint

Measurement System Independent Limit

Steady State Value (%) _<60 % RTP >60 % RTP

6.83 4.44

2.78*

4.05

7.50

1.90*

1.96

4.92

Maximum Value (%)

25.0

25.0

25.0

25.0

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.



Figure is referred to by Technical Specification 3.1.8 and 3.2.5

LOCA Linear Heat Rate Limits

10000 20000 30000 40000

Burnup (MWd/mtU)

50000 60000 70000

Figure 9.

19

18

17

g 16

• 14

13

12

11

6.021-ft (46000, 16.6)

(45000, 16.3) 2-5 - 4-264 and 7.779-(45000, 15.4)

0and 12-ft

(62000, 12.5)

. .. . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

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

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.

Total Peak


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

(-35.2, 107)

(47.1, 90.4

(-47.1, 63.3)

(-47.1, 35.8)

(47.1,0)

ACCEPTABLE 4 PUMP OPERATION

(-35.2, 79.9)

ACCEPTABLE 3&4 PUMP OPERATION

(-352. 52.41

ACCEPTABLE 2,3&4 PUMP OPERATION

(36.7, 79.9)-

I U

-20

(46.1, 94.7)

(46.1,67.6)

(46.1,40.1)

(46.1, 0)


Flux / Flow Setpoint (% Power / % Flow)

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

120 -

• i " f.(35.7. 1071-

100

I-i

0

H-

604-

4(35.7, 62.4)

404-

204-

-80 -60 -40 0 20 40 60 80





Figure 11. Reactor Protection System Variable Low Pressure Temperature Envelope Setpoints

Y I. I. Y

P=2355 PcIG

ACCEPTABLE OPERATION

2400

' 2200

cc

0f

I

ao 2000 0

LU

a,)

sig

.T'=618 *F

�u.9 9

>4

i !~ meiP=1800 PSIG

580

& 1.

600 620 640

Reactor Outlet Temperature, OF

-UNACCEPTABLE OPERATION

P = (16.25 Tout - 8063) p

1800

1600

560 660

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 1 0 0 .9Note5

Maximum RCS Hot Leg Temperature 603.45 603.55 604.00

(OF) Note 2

Minimum RCS Total Flow 138. 1 0Note 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 = 555.3 1IF.

Note 9 -- For Tcold = 580'F.




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.

Page

29

of 30 I

Rev.

0 I

"- ANO Unit 1 Cycle 18 Core Operating Limits Report CALC-0 1-R-1005-04



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

Documents

ANO-1 Cycle 18 COLR. · ANO Unit 1 Cycle 18 Core Operating Limits Report CALC-01-R-1005-04 Page 8 of 30 Rev. 0 Figure is referred to by Technical Specification 3.2.1 Figure 3-B. 110