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Category:Fuel Cycle Reload Report
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[Table view] Category:Letter type:LR
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Text
PSEG Nuclear LLC P.O. Box 236,, Hancocks Bridge, NJ 08038-0236 0 PSEG NuclearL.L. C.
Technical Specification 6.9.1.9 OCT 3.O 2009 LR-N09-0247 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington DC 20555-001 Salem Nuclear Generating Station Unit 2 Facility Operating License No. DPR-75 NRC Docket No. 50-311
SUBJECT:
CORE OPERATING LIMITS REPORT - CYCLE 18 In accordance with section 6.9.1.9 of the Salem Unit 2 Technical Specifications, PSEG Nuclear LLC submits the Core Operating Limits Report (COLR) for Salem Unit 2 Cycle 18 in Attachment 1 to this letter.
Should you have any questions regarding this submittal, please contact Mr. E. Villar at (856) 339-5456.
Sincerely, Robert C. Braun Site Vice President - Salem Attachments (1)
Acot
Document Control Desk OCT 3 0 2009 Page 2 LR-N09-0247 C Mr. Samuel Collins, Administrator - Region I Mr. R. Ennis, Project Manager - USNRC NRC Senior Resident Inspector - Salem Mr. P. Mulligan, Manager IV Commitment Coordinator Salem PSEG Corporate Commitment Manager LR-N09-0247 Core Operating Limit Report For Salem Unit 2, Cycle 18
COLR SALEM 2 Revision 2 August 2009 Core Operating Limits Report for Salem Unit 2, Cycle 18 Page 1 of 13
COLR SALEM 2 PSEG Nuclear LLC Revision 2 SALEM UNIT 2 CYCLE 18 COLR Page 2 of 13 August 2009 TABLE OF CONTENTS Section Section Title Page Number Number Table of Contents 2 List of Figures 3 1.0 Core Operating Limits Report 4 2.0 Operating Limits. 5 2.1 Moderator Temperature Coefficient (Specification 3.1.1.3) 5 2.2 Control Rod Insertion Limits (Specification 3.1.3.5) 6 2.3 Axial Flux Difference (Specification 3.2.1) 6 2.4 Heat Flux Hot Channel Factor - FQ(z) (Specification 3.2.2) 6 2.5 Nuclear Enthalpy Rise Hot Channel Factor FN (Specification 3.2.3) 8 2.6 Boron Concentration (Specification 3.9.1) 9 3.0 Analytical Methods 9 4.0 References 10
COLR SALEM 2 PSEG Nuclear LLC Revision 2 SALEM UNIT 2 CYCLE 18 COLR Page 3 of 13 August 2009 LIST OF FIGURES Figure Figure Title Page Number Number 1 Rod Bank Insertion Limits vs. Thermal Power 11 2 Axial Flux Difference Limits as a Function of Rated Thermal Power 12 3 K(z) - Normalized FQ(z) as a Function of Core Height 13
COLR SALEM 2 PSEG Nuclear LLC Revision 2 SALEM UNIT 2 CYCLE 18 COLR Page 4 of 13 August 2009 1.0 CORE OPERATING LIMITS REPORT This Core Operating Limits Report (COLR) for Salem Unit 2 Cycle 18 has been prepared in accordance with the requirements of Technical Specification 6.9.1.9.
The Technical Specifications affected by this report are listed below:
3.1.1.3 Moderator Temperature Coefficient 3.1.3.5 Control Rod Insertion Limits 3.2.1 Axial Flux Difference 3.2.2 Heat Flux Hot Channel Factor - FQ(Z) 3.2.3 Nuclear Enthalpy Rise Hot Channel Factor - FaHN 3.9.1 Boron Concentration
COLR SALEM 2 PSEG Nuclear LLC Revision 2 SALEM UNIT 2 CYCLE 18 COLR Page 5 of 13 August 2009 2.0 OPERATING LIMITS The cycle-specific parameter limits for the specifications listed in Section 1.0 are presented in the following subsections. These limits have been developed using the NRC-approved methodologies specified in Technical Specification 6.9.1.9 and in Section 3.0 of this report.
2.1 Moderator Temperature Coefficient (Specification 3.1.1.3) 2.1.1 The Moderator Temperature Coefficient (MTC) limits are:
The BOL/ARO/HZP-MTC shall be less positive than or equal to 0 Ak/k/ 0 F.
The EOL/ARO/RTP-MTC shall be less negative than or equal to -4.3x1O"4 Ak/k/°F.
2.1.2 The MTC Surveillance limit is:
The 300 ppm/ARO/RTP-MTC should be less negative than or equal to -3.6x104 Ak/k/°F.
where: BOL stands for Beginning of Cycle Life ARO stands for All Rods Out HZP stands for Hot Zero THERMAL POWER EOL stands for End of Cycle Life RTP stands for Rated THERMAL POWER
COLR SALEM 2 PSEG Nuclear LLC Revision 2 SALEM UNIT 2 CYCLE 18 COLR Page 6 of 13 August 2009 2.2 Control Rod Insertion Limits (Specification 3.1.3.5) 2.2.1 The control rod banks shall be limited in physical insertion as shown in Figure 1.
2.3 Axial Flux Difference (Specification 3.2.1)
[Constant Axial Offset Control (CAOC) Methodology]
2.3.1 The Axial Flux Difference (AFD) target band shall be (+6%, -9%).
2.3.2 The AFD Acceptable Operation Limits are provided in Figure 2.
2.4 Heat Flux Hot Channel Factor - FQ(Z) (Specification 3.2.2)
[Fxy Methodology]
FQ(Z) *
- K(Z)for P > 0.5 FQ(Z) < 0.5
- K(Z)forP_*0.5 where: P = THERMAL POWER RATED THERMAL POWER 2.4.1 FQRTP 2.40 2.4.2 K(Z) is provided in Figure 3.
2.4.3 FyL = FyRTP[1.0+PFy(1.0-P)]
where: F.RTP = 1.95 for unrodded upper core planes I through 6 1.71 for unrodded upper core planes 7 through 31 1.77 for unrodded lower core planes 32 through 55 1.91 for unrodded lower core planes 56 through 61 2.13 for the core planes containing Bank D control rods PF, = 0.3
COLR SALEM 2 PSEG Nuclear LLC Revision 2 SALEM UNIT 2 CYCLE 18COLR Page 7 of 13 August 2009 2.4.4 If the Power Distribution Monitoring System (PDMS) is used for core power distribution surveillance and is OPERABLE, as defined in Technical Specification 3.3.3.14, the uncertainty, UFQ, to be applied to the Heat Flux Hot Channel Factor FQ(z) shall be calculated by the following formula:
UFQ'Q UO 0
=(1.0+ 1oo.0) 1 Ue where:
UQ = Uncertainty for power peaking factor as defined in equation 5-19 of Analytical Method 3.5.
U, = Engineering uncertainty factor.
= 1.03 Note: UFQ= PDMS Surveillance Report Core Monitor Fxy Uncertainty in %.
2.4.5 If the 1NCORE movable detectors are used for core power distribution surveillance, the uncertainty, UFQ, to be applied to the Heat Flux Hot Channel Factor FQ(z) shall be calculated by the following formula:
UFQ = Uqu
Uqu = Base FQ measurement uncertainty.
= 1.05 Ue = Engineering uncertainty factor.
= 1.03
COLR SALEM 2 PSEG Nuclear LLC Revision 2 SALEM UNIT 2 CYCLE IS COLR Page 8 of 13 August 2009 2.5 Nuclear Enthalpv Rise Hot Channel Factor - FNAH (Specification 3.2.3)
F*'AH = FAIRTP [1.0 + PFA (1.0- P)]
where: P = THERMAL POWER RATED THERMAL POWER 2.5.1 FAHRTP 1.65 2.5.2 PFA = 0.3 2.5.3 If the Power Distribution Monitoring System (PDMS) is used for core power distribution surveillance and is OPERABLE, as defined in Technical Specification 3.3.3.14, the uncertainty, UFAH, to be applied to the Nuclear Enthalpy Rise Hot Channel Factor, FAHN, shall be calculated by the following formula:
UFAH =1.0+ UAF 100.0 where: UAH = Uncertainty for enthalpy rise as defined in equation 5-19 of Analytical Method 3.5.
2.5.4 If the INCORE movable detectors are used for core power distribution surveillance, the uncertainty, UFAH, to be applied to the Nuclear Enthalpy Rise Hot Channel Factor FAN shall be calculated by the following formula:
UFAt =-UFAtm where:
UFAHm =Base FAH measurement uncertainty.
= 1.04
COLR SALEM 2 PSEG Nuclear LLC Revision 2 SALEM UNIT 2 CYCLE 18 COLR Page 9 of 13 August 2009 2.6 Boron Concentration (Specification 3.9.1)
A Mode 6 boron concentration, maintained at or above 2139 ppm, in the Reactor Coolant System, the fuel storage pool, the refueling canal, and the refueling cavity ensures the most restrictive of the following reactivity conditions is met:
a) A K-effective (Keff) of 0.95 or less at All Rods In (ARI), Cold Zero Power (CZP) conditions with a 1% Ak/k uncertainty added.
b) A Keff of 0.99 or less at All Rods Out (ARO), CZP conditions with a 1%
Ak/k uncertainty added.
c) A boron concentration of greater than or equal to 2000 ppm, which includes a 50 ppm conservative allowance for uncertainties.
3.0 ANALYTICAL METHODS The analytical methods used to determine the core operating limits shall be those previously reviewed and approved by the NRC, specifically those described in the following documents.
3.1 WCAP-9272-P-A, Westinghouse Reload Safety Evaluation Methodology, July 1985 (W proprietary), Methodology for Specifications listed in 6.9.1.9.a. Approved by Safety Evaluation dated May 28, 1985.
3.2 WCAP-8385, Power Distribution Control and Load Following Procedures - Topical Report, September 1974 (W proprietary) Methodology for Specification 3 / 4.2.1 Axial Flux Difference. Approved by Safety Evaluation dated January 31, 1978.
3.3 WCAP-10054-P-A, Rev. 1, Westinghouse Small Break ECCS Evaluation Model Using NOTRUMP Code, August 1985 (W proprietary), Methodology for Specification 3 / 4.2.2 Heat Flux Hot Channel Factor. Approved for Salem by NRC letter dated August 25, 1993.
3.4 WCAP-10266-P-A, Rev. 2, The 1981 Version of Westinghouse Evaluation Model Using the BASH Code, Rev. 2. March 1987 (W proprietary) Methodology for Specification 3 / 4.2.2 Heat Flux Hot Channel Factor. Approved by Safety Evaluation dated November 13, 1986.
COLR SALEM 2 PSEG Nuclear LLC Revision 2 SALEM UNIT 2 CYCLE 18 COLR Page 10 of 13 August 2009 3.5 WCAP-12472-P-A, BEACON - Core Monitoring and Operations Support System, Revision 0 (w proprietary). Approved February 1994.
.3.6 CENPD-397-P-A, Rev. 1, Improved Flow Measurement Accuracy Using Crossflow Ultrasonic Flow Measurement Technology, May 2000.
3.7 WCAP-10054-P-A, Addendum 2, Rev. 1, Addendum to the Westinghouse Small Break ECCS Evaluation Model Using the NOTRUMP Code: Safety Iniection into the Broken Loop and COSI Condensation Model, July 1997.
4.0 REFERENCES
- 1. Salem Nuclear Generating Station Unit No. 2, Amendment No. 273, License No.
DPR-75, Docket No. 50-311.
COLR SALEM 2 PSEG Nuclear LLC Revision 2 SALEM UNIT 2 CYCLE 18 COLR Page 11 of 13 August 2009 FIGURE 1 ROD BANK INSERTION LIMITS VS. THERMAL POWER 240 111111 11 1 1 1 1 11 1 1 1 1 1 1 1 11 1 1 1 1 11 H 1 1 11 1 1 1 67 265 220 fil 2261 .12 BANK B 200 BAN5KB 0,186 11 rl '170 180 100,0170 160 A I BANK C IDl- 140 z
0 E 120 70, 0) 0 z ,0
< 100
-.J 0
z0 80 BAN D 0.
60 11 1 1 IA 40 I 111 1 1A I I I I 1Y I I I I I I Yi I I I I I I I 20 0
0 10 20 30 40 50 60 70 80 90 100 PERCENT OF RATED THERMAL POWER (%)
COLR SALEM 2 PSEG Nuclear LLC Revision 2 SALEM UNIT 2 CYCLE 18 COLR Page 12 of 13 August 2009 FIGURE 2 AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF RATED THERMAL POWER 100 80 UNACCE OPERJ 0
60 0
H
(-3 1,50
-o 5)
'4-0 40 5)
U 20 O .. .. ..
-50 -40 -30 -20 -10 0 10 20 30 40 50 Flux Difference (% Delta I)
COLR SALEM 2 PSEG Nuclear LLC Revision 2 SALEM UNIT 2 CYCLE 18 COLR Page 13 of 13 August 2009 FIGURE 3 K(Z) - NORMALIZED FQ(Z) AS A FUNCTION OF CORE HEIGHT 1.2 1.0 0.8
-4 FQ K(Z) Height (FT) 2.40 1.0 0.0 2.40 1.0 6.0
- 0.6 2.22 0.925 12.0 00.4 z
0.2 0.0 0 2 4 6 8 10 12 CORE HEIGHT (FEET)