ML041630149

Core Operating Limits Report, Revision 17

ML041630149
Person / Time
Site:	Oyster Creek
Issue date:	06/07/2004
From:	Gallagher M AmerGen Energy Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
2130-04-20121
Download: ML041630149 (14)

Text

w AmerGen Energy Company, LLC www.exeloncorp.com AmereenS.,

An Exelon Company 200 Exelon Way Kennett Square, PA 19348 Technical Specification 6.9.1.f.4 2130-04-20121 June 7, 2004 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Oyster Creek Generating Station Facility Operating License No. DPR-1 6 Docket No. 50-219

SUBJECT:

Core Operating Limits Report, Revision 17 Enclosed with this cover letter is the approved Oyster Creek Generating Station Core Operating Limits Report, Revision 17, for Operating Cycle 19. The report has been reviewed as required by the Oyster Creek Technical Specifications.

If any additional information is needed, please contact Dave Robillard at (610) 765-5952.

Very truly yours, Michael P. Gallagher Director, Licensing & Regulatory Affairs AmerGen Energy Company, LLC

Enclosure:

Oyster Creek Generating Station Cycle 19 Core Operating Limits Report, Topical-066, Revision 17 cc: H. J. Miller, Administrator, USNRC Region 1 P. S. Tam, USNRC Senior Project Manager, Oyster Creek R. J. Summers, USNRC Senior Resident Inspector, Oyster Creek File No. 04005 J2iO

AmerGen Oyster Creek Cycle 19 Core Operating Limits Report Topical Report - 066 I Rev. 17 BA Number 335400 l May 2004 Author: M. P. Hynes Approved: ( 05'3.21. 04 91gager Date Nuclear Design - BWR Branch Reviewed:

OSR 7 jLW& Date Reactor En ireering PORC Chairman Da

I TR-066 Rev. 17 Page 2 of 11 TABLE OF CONTENTS Page Introduction.......................................................................................................3 References........................................................................................................4 FIGURE 1 GE9B-348 Fuel MAPLHGR Limits ........................................... 5 FIGURE 2 GE9B-338 Fuel MAPLHGR Limits ........................................... 6 FIGURE 3 GE1 1B-374 Fuel MAPLHGR Limits ............................................ 7 FIGURE 4 GE1 1B-369 Fuel MAPLHGR Limits ............................................ 8 FIGURE 5 MCPR Limits............................................ 9 FIGURE 6 Kf Flow Factor ........................................... 10 FIGURE 7 LLHGR Limits ........................................... 11

TR-066 Rev. 17 go TR-066 Rev. 17 Page 3 of 11 INTRODUCTION Generic Letter 88-16 provides guidance for Technical Specification Changes concerning cycle-specific limits. The generic letter provides a vehicle for the removal of cycle specific parameters from the Technical Specifications and the maintenance of these values within a Core Operating Limits Report (COLR). The Technical Specification modification also establishes reporting requirements and includes definitions supporting the proposed changes. The COLR, including mid-cycle revisions, will be provided for each reload cycle.

This COLR has been prepared in accordance with the requirements of OC Technical Specification 6.9.1.f. The Cycle 19 fuel/core operating limits were generated using the NRC-approved codes and methodologies identified in Reference 9. The information in l this report is taken from References 10 through 15.

For each GE fuel design, the APLHGR limits provided in the COLR for operation with less than five loops are calculated to be the same as the five-loop limits at all exposure levels provided a non-operating loop is not an ISOLATED RECIRCULATION LOOP. If a non-operating loop is ISOLATED (both the suction and discharge valves are in the closed position as defined in References 6 and 14), then a 0.98 MAPHLGR multiplier must be applied at all exposure levels. Only one ISOLATED non-operating loop is permitted. Requirements for operation with recirculation loops out-of-service are provided in Technical Specification 3.3.F.2.

The LLHGR limits are implemented on a fuel rod exposure dependent basis. Figure 7 shows the maximum value of the LLHGR limit. The exposure dependent LLHGR values are contained Reference 13 for the GE9B fuel, and in Reference 12 for the GE1 1 fuel.

The CPR limits in Figure 5 are differentiated based on the number of recirculation loops in service; one set of limits applies to the condition of five or four loops in service, while the other set applies to the condition of three loops in service. Cycle exposure dependent limits are provided for each condition. The limits cover operation at any point in the cycle with increased core flow up to 67.5 Mlb/hr, feedwater temperature reduction of up to 105 OF, and operation in the extended load line limit analysis (ELLLA) region.

During power operation thermal margins should be maintained within the specified limits. If at any time during power operation it is determined by normal surveillance that the limiting value for APLHGR (Figures 1, 2, 3 and 4), LLHGR (Figure 7) or CPR (Figure

5) is being exceeded, action shall be initiated to restore operation to within the prescribed limits as specified in Technical Specification Section 3.10.

TR-066 Rev. 17 Page 4 of 11 REFERENCES

1. Deleted

2. Deleted

3. Deleted

4. Deleted

5. Deleted

6. "Oyster Creek NGS SAFER/CORECOOUGESTR-LOCA Loss-of-Coolant Accident Analysis," NEDE-31462P August 1987

7. Deleted

8. Deleted

9. "General Electric Standard Application for Reload Fuel," NEDE-2401 1-P-A-14 June 2000 and U.S. Supplement, NEDE-2401 1-P-A-14-US, June 2000.

10. "Oyster Creek C19 New Option A Limits," GE-NE-0000-0026-6850-RO, March 2004. (DRF Number: 0000-0025-2677).

11. 000000055032-SRLR, "Supplemental Reload Licensing Report for Oyster Creek Reload 18 Cycle 19", Revision 2, May 2003.

12. 000000055032-FBIR, "Fuel Bundle Information Report for Oyster Creek Reload 18 Cycle 19", Revision 0, September 2002.

13. GNF-eOOOO-0007-5877, "Improved LHGR Limits for GE9B Fuel in Oyster Creek",

September 2002.

14. GE-NE-0000-0001-7486-01 P, "Oyster Creek Generating Station Loss of Coolant Accident Evaluation for GE1 1", July 2002.

l 15. 10 CFR 50.46 Notification Letter, GE to Exelon, 2003-05, May 13, 2004

TR-066 Rev. 17 Page 5 of 11 FIGURE 1 GE9B-P8DWB348-1 2GZ-80M-1 45-T MAPLHGR LIMITS MAPLHGR Limits for 3, 4, and 5 Loop Operation Technical Specfication 3.10.A DATA POINTS 12.00-ALL LATTICES Exposure 11.00 - L-- -- - L- - - - - - -

GWD/IMT KW/FT 0.00 10.88 10.00- -- -- - - - - - - - - - - - - -- -

0.20 10.88 1.10 10.98 9. ---------- L_______ L__ __ L_______

5.50 11.30 8.80 11.28 11.00 11.19 0 13.80 11.11 16.50 10.79 < 7.00 ---- --

_L L- - - - - - - L - - - - - -

19.30 9.76 22.00 9.66 6.00 ------- ------ r - - - - - - - - - - - - -

27.60 9.61 38.60 9.39 5.00 L- - - -_-_-_-L-------L-______

49.60 9.45 60.60 9.35 4.00 71.70 9.37 0.00 20.00 40.00 60.00 80.00

TR-066 Rev. 17 Page 6 of 11 FIGURE 2 GE9B-P8DWB338-11 GZ-80M-1 45-T MAPLHGR LIMITS Technical Specfication 3.10.A MAPLHGR Limits for 3, 4, and 5 Loop Operation DATA POINTS ALL LATTICES 12.00 Exposure GWDIMT KWIFT 0.00 10.93 10.00 ------

0.20 10.93 E 1.10 11.03 9.00 -

5.50 11.37 8.80 11.29 8.00 - ------ _

11.00 11.11 13.80 11.11 7.00 ---------- ---------I--------- -----

16.50 10.68 19.30 9.72 6.00 _ _ - --------

22.00 9.61 27.60 9.60 38.60 9.39 49.60 9.43 4.00 60.60 9.36 0.00 20.00 40.00 60.00 80.00 71.70 9.44 Average Planar Exposure (GWDIMT) l Ail Lattices

TR-066 Rev. 17 Page 7 of 11 FIGURE 3 GE1 1B-P9HUB374-1 3GZ-1 OOT-1 45-T6-2559 MAPLHGR LIMITS Technical Specfication 3.10.A MAPLHGR Limits for 3, 4, and 5 Loop Operation DATA POINTS 11.00 l LATTICES Exposure PSZ DOM SDZ NATU 10.00 1 GWD/MT KWIFT KW/FT KW/FT KW/FT 0.00 9.83 9.78 9.83 9.83 9.00 0.20 9.83 9.78 9.83 9.83 1.10 9.81 9.73 9.81 9.81 I

I II 8.00 5.50 9.65 9.62 9.65 9.65 - I II 11.00 9.52 9.52 9.52 9.52 C, I I I 16.50 9.46 9.45 9.46 9.46 7.00 I .I I

-J 22.00 9.23 9.22 9.23 9.23 I II _

6.00 I I . I 27.60 8.28 8.24 8.28 8.28 I I . I 38.60 7.99 7.98 7.99 7.99 49.60 8.01 8.04 8.01 8.01 5.00 -

60.60 8.02 8.02 8.02 8.02 t II 71.70 7.54 7.54 7.54 7.54 4.00 0.00 20.00 40.00 60.00 80.00 Average Planar Exposure (GWD/MT)

+--PSZ -_-DOM A2SDZ NATUI

TR-066 Rev. 17 Page 8 of 11 FIGURE 4 GEl 1B-P9HUB369-1 2GZ-1 OOT-1 45-T6-2560 MAPLHGR LIMITS Technical Specfication 3.10.A MAPLHGR Limits for 3,4, and 5 Loop Operation DATA POINTS LATTICES 11.00 Exposure PSZ DOM SDZ NATU lo l GWD/IMT KW/Fr KW/FT KW/FT KW/FT 0.00 10.10 10.11 10.10 10.10 900 I 0.20 10.10 10.11 10.10 10.10 F 1.10 10.05 10.04 10.05 10.05 800 - L 5.50 9.96 9.88 9.96 9.96 _

11.00 9.76 9.72 9.76 9.76 7 16.50 9.64 9.64 9.64 9.64 22.00 9.27 9.25 9.27 9.27 27.60 8.39 8.35 8.39 8.39 38.60 8.07 8.06 8.07 8.07 500 49.60 8.15 8.15 8.15 8.15 60.60 7.99 7.98 7.99 7.99 4.00 71.70 7.51 7.51 7.51 7.51 0.00 20.00 40.00 60.00 80.00 Average Planar Exposure (GWDIrr I-+- PSZ -U- DOM -*- SDZ -X- NA

I TR-066 Rev. 17 Page 9 of 11 FIGURE 5 MINIMUM CRITICAL POWER RATIO (MCPR) - Tech SDec 3.10.C MCPR Limits for Five or Four Recirculation Loops in Service APRM STATUS BOC to EOR-2205 EOR-2205 MWD/MT (1) MWD/MT to EEOC( 2

1. If any two (2) LPRM assemblies which are input to the APRM system and are separated in distance by less than three (3) times the control rod pitch contain a combination of 1.45 1.47 three (3) out of four (4) detectors located in .

either the A and B or C and D levels which are failed or bypassed (i.e., APRM channel or LPRM input bypassed or inoperable)

2. If any LPRM input to the APRM system at the B, C, or D level is failed or bypassed or if any 1.45 1.47 APRM channel is inoperable (or bypassed).

3. All B, C, and D LPRM inputs to the APRM system are operating and no APRM channels 1.45 1.47 are inoperable or bypassed.

MCPR Limits for Three Recirculation Loops in Service APRM STATUS BOC to EOR-2205 EOR-2205 MWD/MT ' MWD/MT to EEOC(2

1. If any two (2) LPRM assemblies which are input to the APRM system and are separated in distance by less than three (3) times the control rod pitch contain a combination of 1.46 1.48 three (3) out of four (4) detectors located in .

either the A and B or C and D levels which are failed or bypassed (i.e., APRM channel or LPRM input bypassed or inoperable)

2. If any LPRM input to the APRM system at the B, C, or D level is failed or bypassed or if any 1.46 1.48 APRM channel is inoperable (or bypassed).

3. All B, C, and D LPRM inputs to the APRM system are operating and no APRM channels 1.46 1.48 are inoperable or bypassed.

Notes:

(1) Limit applies in the cycle exposure range from beginning of cycle (BOC) until 2205 MWD/MT prior to end of rated (EOR). EOR is defined as the cycle exposure point where all rods out at rated power and flow occurs with all feedwater heaters in service.

(2) Limit applies in the cycle exposure range from 2205 MWD/MT prior to EOR to extended end of cycle (EEOC). EEOC includes cycle extension options used beyond EOR (increased core flow, feedwater temperature reduction, and coastdown).

I TR-066 Rev. 17 Page 10 of 11 FIGURE 6 Technical Specification 3.10.C Kf Curve Kf Curve 1.40 DATA POINTS FLOW K, 1.30 0.3 1.28 1.20 -

0.4 1.22 0.5 1.17 0.6 1.13 Y 1.10 0.7 1.09 0.8 1.05 0.9 1.00 1.00 1 1.00 1.2 1.00 0.90 Flowmax =117%

0.80 ,

0 0.2 0.4 0.6 0.8 1 1.2 1.4 Fraction of Core Flow NOTE: For Fraction of Core Flow (FCF) less than 0.40 the following adjustment factor must be applied to the curve: 1.0 + (0.32)(1.22)(0.40.FCF)

I TR-066 Rev. 17 Page 11 of 11 FIGURE 7 LOCAL LINEAR HEAT GENERATION RATE (LLHGR) - Tech Spec 3.10.B FUEL TYPE LLHGR Limit GE8x8NB < 13.4 kw/ft GE11 < 11.0 kw/ft

AmerGen DOCUMENT NO.

TR 066 TITLE Oyster Creek Core Operating Limits Report REV

SUMMARY

OF CHANGE DATE 1 Technical Specification references were added to each Figure 2 Correction to several typographical errors were made References to the Figures were provided in the thermal margins discussion in the introduction.

Dates and revision numbers of various references were provided.

3 Revise document to reflect the Cycle 13 design and safety analysis results. APLHGR limits (Figure 8 and 9) for two new fuel designs were added. Also the MCPR limit (Figure 10) changed from 1.51. to 1.48.

4 Revise document to reflect the Cycle 14 design and safety analysis results. MAPLHGR limits for ENCVB, GE-239, GE-265H and GE- 299ZA fuel designs were removed. MCPR limit changed from 1.48 to 1.47. LLHGR limit for ENCVB fuel was removed.

5 Mid-Cycle 14 revision to the MCPR operating limit. The limit changed from 1.47 to a 1.51 based on a re-evaluation of the EOC 14 Conditions.

6 Revise document to reflect the cycle 15 design and safety analysis results. APLHGR and LLHGR limits for two new GE9 fuel designs were added. Also, the MCPR limit changed from 1.51 to 1.50.

Revise document to reflect the cycle 16design and safety analysis results. Removed APLHGR limit for 7 GE-P8DQB32I fuel. Revised Kf curve and changed MCPR limit from 1.50 to 1.53 Revise document to reflect the cycle 17 design and safety analysis results. Changed MCPR limit from 8 1.53 to 1.52.

Added approval for Engineering Support Director.

9 Revised for cycle 17 increased MCPR from 1.52 to 1.56 10 Revised document to reflect the cycle 18 core design and safety analysis. Removed limits for GE8 fuel 11 design. Included reference to operation with less then five loops instead of operation with four loops.

MCPR limit for cycle 18 same as cycle 17 Revised document to reflect the re-analyzed cycle 18 design and safety analysis results. Changed MCPR 12 limit from 1.56 to 1.58.

Revised document to reflect the re-analyzed cycle 18 design and safety analysis results. A complete re-13 analysis of Cycle 18 transients was performed to address operation at Increased Core Flow (ICF) conditions up to a maximum core flow rate of 67.5 Mlbm/hr. This new operating condition resulted in an increase in the operating MCPR. The MCPR limit increased from 1.58 to 1.61.

L L

DOCUMENT NO.

'AmerGen TR 066 TITLE Oyster Creek Core Operating Limits Report REV I

SUMMARY

OF CHANGE l DATE 14 Revised to eliminate GPU topical references. Added new references to reflect GNF licensing methods and supporting documents. Revised GE9 MAPLHGR figures and added GEI I MAPLHGR figures.

Revised MCPR limits to include mid cycle and end of cycle points (1.53 and 1.55 respectively for five or four recirc loop operation and 1.54 and 1.56 respectively for three recirc loop operation). Added GE II LLHGR limit.

15 Revised to reflect a reduced SLMCPR. The SLMCPR had decreased by 0.02, therefore, the OLMCPR was equally reduced by this amount (conservative approach). MCPR limit decreased from 1.53 to 1.51 (five or four loop operation).

16 Revised the document to include a cycle-specific Option A MCPR adder analysis. The previous revision MCPR was based on a generic Option A MCPR adder. As a result of the cycle-specific analysis the MCPR was reduced from 1.51 to 1.45 (five or four loop operation at MOC condtions).

17 Revised the document to include more restrictive MAPLHGR limits due to the receipt of 10 CFR 50.46 S -:51-

&/

Notification 2003-05.

_____ +/- £