ML18010A798

Rev 3 to Shearon Harris Unit 1,Cycle 4 Colr.

ML18010A798
Person / Time
Site:	Harris
Issue date:	09/23/1992
From:	CAROLINA POWER & LIGHT CO.
To:
Shared Package
ML18010A797	List: ML18010A796 ML18010A798
References
PLP-106, PLP-106-R03, PLP-106-R3, NUDOCS 9210060027
Download: ML18010A798 (23)

Text

OS1 Attachment 9 Page 1 of 15 Shearon,Harris Unit 1 Cycle 4 Core Operating Limits Report O'DR'age PLP-106 Rev. 3

'72100b0027'920923 PDR

"

ADOCK 05000400 66 of 80

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OS1 Attachment 9 Page 2 of 15 COLR for Shearon Harris Unit 1 Cycle 4 1..0 CORE OPERATING LIMITS REPORT This Core Operating Limits Report (COLR) for Shearon Harris Unit 1 Cycle 4 has been prepared in accordance with'he requirements of Technical Specification 6.9.1.6.

The Technical Specifications affected by this report are listed below:

3/4.1.1.3 Moderator Temperature Coefficient 3/4 '.3.5 Shutdown Rod Insertion Limit 3/4.1.3.6 Control Rod Insertion Limits 3/4.2.1 Axial Flux Difference 3/4.2.2 Heat Flux Hot Channel Factor >> FQ~~~

3/4.2.3 Nuclear Enthalpy Rise Hot Channel Factor - F~

3/4.9.1. Boron Concentration .

PLP-106 Rev. 3 Page 67 of 80

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OS1 Attachment 9 .

Page 3 of 15 COLR for Shearon Harris Unit 1 Cycle 4 2.0 OPERATING LIMITS The cycle-specific parameter limits for the specifications listed in Section 1.0 are presented in the following subsections'hese limits have been developed using the NRC-approved methodologies specified in Technical Specification 6.9.1.6 and given in Section 3.0.

2.1 Moderator 'Tem erature Coefficient (Specification 3/4.1.1.3)

1. The Moderator Temperature Coefficient (MTC) limits are:

The Positive MTC Limit (ARO/HZP) shall be less positive than

+5.0 pcm/'F for power levels up to 70X RTP with a linear ramp to 0 pcm/'F at 100X RTP.

The Negative MTC Limit (ARO/RTP) shall be less negative than

-49 pcm/'F.

2. The MTC Surveillance limit is:

The 300 ppm/ARO/RTP-MTC should be less negative than or equal to

-41 ' pcm/'F ~

where: ARO stands for All Rods Out HZP stands for Hot Zero THERMAL POWER RTP stands for RATED THERMAL POWER 2.2 Shutdown Rod Insertion Limit (Specification 3/4 '.3.5)

1. Fully withdrawn for all shutdown rods shall be 228 steps.

2.3 Control Rod Insertion Limits (Specification 3/4.1 3.6)

1. The control rod banks shall be limited in physical insertion as specified in Figure 1 of this attachment. Fully withdrawn for all control rods shall be 228 steps.

2.4 Axial Flux Difference (Specification 3/4.2.1)

1. The acceptable operational space for Relaxed Axial Offset Control (RAOC) operation is specified in Figure 2 of this attachment.

2. The AXIAL FLUX DIFFERENCE (AFD) target band for Base Load operation is +5X.

3.

3 The Th APL for Base Load operation is 85X of RATED THERMAL POWER.

PLP-106 Rev. 3 Page 68 of 80

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'S1

'Attachment 9 Page 4 of 15 COLR for Shearon Harris Unit 1 Cycle 4 2.S Heat Flux Hot Channel Factor - F~(Z)

I (Specification 3/4.2.2)

F (Z) <

~Q P

~ K(Z) for P > 0.5 F<(Z) < 05

~ K(Z) for P < 05 I

where: P = THERMAL POWER RATED THERMAL POWER

2. ~q = 2.45 3- K(Z) is specified in Figure 3 of this attachment.

4. W(z) Curves for RAOC Operation are specified in Figures 4 through 6 of this attachment. These W(z) curves are sufficient to determine the RAOC W(z) versus core height for Cycle 4 burnups through the end

~

of full power reactivity plus a power coastdown of up to 1219 MWD/MTU through the use of three point interpolation.

W(z) Curves for Base Load Operation are specified in Figures 7 5 ~

through 9'f this attachment. These W(z) curves are sufficient to determine the Base Load W(z) versus core height for Cycle 4 burnups through the end of full power reactivity plus a power coastdown of up to 1219 MWD/MTU through the use of three point interpolation PLP-106 Rev. 3 Page 69 of 80

OS1 Attachment 9 Page 5 of 15 COLR for Shearon Harris Unit 1 Cycle 4 2.6 Nuclear Enthal Rise Hot Channel Factor - F~ (Specification 3/4.2.3)

RTP 1 ~ F~ps bH* (1+ PFgH* (1 P))

THERMAL POWER RATED THERMAL PONZR RTP cR ~ . h,H = 1.62 for LOPAR fuel RTP

b. F B,H = 1.65 for VANTAGE-5 fuel C. PF~= 0.3 for LOPAR fuel

d. PF~= 0.35 for VANTAGE-5 fuel 2.7 Boron Concentration for Refuelin 0 erations (Specification 3/4.9.1)

Through the end of Cycle 5, the boron concentration required to maintain K,zz less than or equal to .95 is less restrictive than the 2000.ppm boron requirement. Boron concentration must be maintained greater than or equal to 2000 ppm during refueling operations.

PLP-106 Rev. 3 Page 70 of 80

OS1 Attachment 9 Page 6 of 15 COLR for Shearon Harris Unit 1 Cycle 4.

3.0 METHODOLOGY REFERENCES

1. WCAP-9272-P-A, "Westinghouse Reload Safety Evaluation Methodology," July 1985 (W Proprietary).

(Methodology for Specification 3.1.1.3 - Moderator Temperature Coefficient, 3.1.3.5 - Shutdown Rod Insertion Limit, 3.1.3.6 - Control Rod Insertion Limit, 3.2.1 - Axial Flux Difference, 3.2.2 - Heat Flux Hot Channel Factor, and 3.2.3 - Nuclear Enthalpy Rise Hot Channel Factor, and 3.9.1 - Boron Concentration.)

WCAP-11914, "Safety Evaluation Supporting a More Negative EOL Moderator Temperature Coefficient Technical Specification for the Shearon Harris Nuclear Power Plant," August 1988 (W Proprietary).

Approved by NRC Safety Evaluation dated May 22, 1989.

(Methodology for Specification 3.1.1.3 - Moderator Temperature Coefficient.)

3. WCAP-10216-P-A, "Relaxation of Constant Axial Offset Control F<

Surveillance Technical Specification," June 1983 (W Proprietary).

(Methodology for Specifications 3.2.1 - Axial Flux Difference (Rexated Axial Offset Control) and 3.2.2 - Heat Flux Hot Channel Factor (F< Methodology for W(Z) Surveillance requirements).)

4. WCAP-10266-P-A, Rev. 2, "The 1981 Version of the Westinghouse ECCS Evaluation Model Using the BASH Code," March 1987 (W Proprietary).

(Methodology for Specification 3.2.2 - Heat Flux Hot Channel Factor.)

5. WCAP-8385, "Power Distribution Control and Load Following Procedures - Topical Report," September 1974 (W Proprietary),

(Methodology for Specification 3.2.1 - Axial Flux Difference (Constant Axial Offset Control).)

6. 'CAP-11832-P-A, "Extension of Methodology for Calculating Transition Core DNBR Penalties," January 1990 (W Proprietary).

PLP-106 Rev. 3 Page 71 of 80

OS1 Attachment 9 Page 7 of 15 FIGURE 1 SHEARON HARRIS UNIT 1 CYCLE 4 ROD GROUP INSERTION LIMITS VERSUS THERMAL POWER (THREE-LOOP OPERATION) 220 .538. 228) 200 1, 186) c- 180 D

BANK

~ '160

~ 140 0, 128

~ 120 C) BANK 0

~ 100 C)

~ 60

~ 60 Ch CD 40 20 0 0

.00 . 10 .20 .30 .<0 .50 .60 .70 .60 .90 1.0 FRACTlON OF RATED THERMAL PONER (Fully withdrawn shall be 22$ steps)

Note: Control Banks A ancl B Must be Withdrawn From The Core Prior To Power Operation This figure is referrecl to by Technical Specifications 3.1.3.1.d.2 PLP-106 Rev. 3 3.1.3.5 Page 72 of 80 3.1.3.6

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OS1'ttachment 9 Page 8 of 15 FIGURE 2 SHEARON HARRIS UNIT 1 CYCLE 4 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF BATED THERMAL POWER FOR RAOC 120 110 100 7, 100 100 I l UN CCKPT ACQEPT BLK 90 CO CL 80 GER TAB FJ 70 w~ 60 50 C) 50 28 50 z

IJJ 40 CD g 30 20 10 50 HO -30 -20 -'10 0 10 20 30 40 50 AXIAL FLUX OIFFERENCE (X OELTA-I)

This figure is referred to by Technical Specifications 3.2.1 4.2.2.2f PLP-106 Rev. 3 a3/4.2.1 Page 73 of 80

I OS1 Attachment 9 Page 9 of 15 FIGURE 3 SHEARON HARRIS UNIT 1 CYCLE 4 K(z) - LOCAL AXIAL PENALTY FUNCTION FOR F~(z) 1.0 5 ,90 4

~ .80 w

a

.70 Normalized Cl flevation Peaking Facto w SSMQNQNR SSSSSSSSRSSRS

.60 0.0 1.0 6.0 1.0 12.0 0.925 o .60

.40

.30

.20 '.

5 6 7 10 1 1 12 CORE HEiGHT {Feet)

This figure is referred to by Technical Specification 3/4.2.2 PLP-106 Rev. 3 Page 74 of 80

OS1 Attachment 9 Page 10 of 15 FIGURE 4 SHEARON HARRIS UNIT 1 CYCLE 4 RAOC W(Z) AT 150 MWD/MTU 1.35 Het gnt SOL

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Thas Eagure as referred to by Technical Specifications 4.2.2.2c S3/4.2.2 PLP-106 Rev. 3 Page 75 of 80

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OS1 Attachment 9 Page 11 of 15 FIGURE 5 SHEARON HARRIS UNIT 1 CYCLE 4 RAOC V(Z) AT 7000 MWD/MTU lie! gnt Wl. I 1.35 F ae \ I QI 2 0.00 1.0000 0.20 1. 0000 I

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CORE HEIGHT (F eet) excluded=as per Tecnnica 1 Specie icat1on 4.2.2.2.

This figure is reEerred to by Technical Specifications 4.2.2.2c 83/4.2.2 PLP-106 Rev. 3 Page 76 of 80

OS1 Attachment 9 Page 12 of 15 FIGURE 6

'SHEARON HARRIS UNIT 1 CYCLE' RAOC W(Z) AT 15500 MWD/MTU Hei ght SO I.

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This figure is referred to by Technical Specifications 4.2.2.2c 83/4.2.2 PLP-106 Rev. 3 Page 77 of 80

bS1 Attachment 9 Page 13 of 15 FIGURE 7 SHEARON HARRIS UNIT 1 CYCLE 4 BASE LOAD W(Z) AT 150 MWD/MTU FOR'POWER LEVELS ABOVE 85% OF RATED THERMAL POWER 80L

l. 12 He+Lit NI 8 I I 0.00 1. 0000 0.20 1.0000

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f 1 cst10n This figure is referrecl to by Technical Specifications 4.2.2.38 4.2.2.4c PLP-106 Rev. 3 83/4.2.2 Page 78 of 80

~ 4 J OS1 Attachment 9 Page 14 of 15 FIGURE 8 SHEARON HARRIS UNIT I CYCLE 4 BASE LOAD W(Z) AT 7000 MWD/MTU FOR POWER LEVELS ABOVE 85% OF RATED THERMAL POWER He~l I MO1.

w< z>

1. 12 I

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This figure is referred to by Techni ca i Specifications 4.2.2.3$

4.2.2.4c PLP-106 Rev. 3 83/4.2.2 Page 79 of 80

~ ~, -r QS1 Attachment 9 Page 15 of 15 FIGURE 9 SHEARON HARRIS UNIT 1 CYCLE 4 BASE LOAD W(Z) AT 15500 MWD/MTU FOR'POWER LEVELS ABOVE 858 OF RATED THERMAL POWER EOI He+Lit WIst

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This figure is referrecl to by Technical Specif ications 4.2.2.3a 4.2.2.4c PLP-106 Rev. 3 S3/4.2.2 Page 80 of 80

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