L-2006-247, Core Operating Limits Report

Core Operating Limits Report

ML063420117
Person / Time
Site:	Turkey Point
Issue date:	11/27/2006
From:	Jones T Florida Power & Light Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
L-2006-247
Download: ML063420117 (4)

Text

0 FPL NOV 2 7 2006 L-2006-247 10 CFR 50.36 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555 Re: Turkey Point Unit 4 Docket No. 50-251 Core Operating Limits Report In accordance with Technical Specification 6.9.1.7, the attached Core Operating Limits Report is provided for Turkey Point Unit 4. These curves are applicable for Unit 4 Cycle 23.

Should there be any questions, please contact James Connolly, Licensing Manager, at 305-246-6632.

Very truly yours, Ter . ionesý Site Vice President Turkey Point Nuclear Plant OIH Attachment cc: Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, Turkey Point Plant 74oi)i an FPL Group company

Attachment to L-2006-247 Page 1 of 3 CORE OPERATING LIMITS REPORT - UNIT 4 CYCLE 23 The Technical Specifications (TS) affected by this report are:

3.1.3.2 Analog Rod Position Indication System 3.1.3.6 Control Rod Insertion Limits 3.2.1 Axial Flux Difference (AFD) 3.2.2 Heat Flux Hot Channel Factor - FQ(Z) 3.2.3 Nuclear Enthalpy Rise Hot Channel Factor - FAH The Control Rod Insertion limits, AFD, FQ(Z), K(Z), and FAH have been developed using the NRC approved methodology specified in TS 6.9.1.7.

TS 3.1.3.2 Analog Rod Position Indication System The All Rods Out position for all Shutdown Banks and Control Banks is defined to be 230 steps withdrawn.

TS 3.1.3.6 Control Rod Insertion Limits The control rod banks shall be limited in physical insertion as shown on Figure 1 for All Rods Out = 230 steps withdrawn.

TS 3.2.1 Axial Flux Difference The AFD limits are provided on Figure 2.

TS 3.2.2 Heat Flux Hot Channel Factor - FQ(Z)

QIFL = 2.50 K(Z) = 1.0 for 0 ft.

• Z < 12 ft. where Z = core height.

TS 3.2.3 Nuclear Enthalpy Rise Hot Channel Factor RT FS?'= 1.70 PFA&H = 0.3

S Attachment to L-2006-247 Page 2 of 3 Figure 1 Turkey Point Unit 4 - Cycle 23 Rod Insertion Limits vs Thermal Power In ARO = 230 Steps Withdrawn, Overlap = 102 Steps 21 2C C

1Ei 30 0

4- 10--

a.

I) 4-Ii, C

.2 0*-,K(..05)

Io----------------------

0-I C - --- '__az 4-110 - -. . .. ... .. . ..

'ft 0

- - I a.

0 1001-- " (1 5, - .. . ,./ i 11 0

Rl--90]---Lli-B* nk D 70 60 50 40 30 - -......

-I00 (I

20 10 0

0 10 20 30 40 50 60 70 80 90 100 Percent Reactor Power

Attachment to L-2006-247 Page 3 of 3 Figure 2 Axial Flux Difference as a Function of Rated Thermal Power 120 Turkey Point Unit 4 - Cycle 23

- (-1,100)(+7,100) 100 80 UNACCEPTABLE UACCEPTABLE a

LU OPERATION OPERATIO w 60 3-ACCEPTABLE-(-30,50) OPERAI ION (2,0 40 U-20 0

-50 -40 -30 -20 -10 0 10 20 30 40 50 Axial Flux Difference (%)