ML083650113
| ML083650113 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 12/19/2008 |
| From: | Godwin F R Tennessee Valley Authority |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML083650113 (41) | |
Text
Tennessee Valley Authority, Post Office Box 2000, Decatur, Alabama 35609-2000 December 19, 2008 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Stop: OWFN, P1-35 Washington, D.C. 20555-0001 In the Matter of ) Docket No. 50-259 Tennessee Valley Authority
)BROWNS FERRY NUCLEAR PLANT (BFN) -UNIT 1 -CORE OPERATING LIMITS REPORT (COLR), REVISION 1 FOR CYCLE 8 OPERATION In accordance with the requirements of Technical Specification 5.6.5.d, enclosed is the Unit 1 Cycle 8, Revision 1, Core Operating Limits Report. Revision 1 is an update of the Unit 1 Cycle 8, Revision 0, COLR that was issued October 23, 2008, on an interim basis, to support fuel loading.There are no new commitments contained in this letter. If you have any questions, please contact me at (256) 729-2636.Sincerely, F. R. Godwin Manager of Licensing and Industry Affairs Enclosure cc: See page 2 U.S. Nuclear Regulatory Commission Page 2 December 19, 2008 Enclosure cc (Enclosure):
Ms. Eva A. Brown, Project Manager U.S. Nuclear Regulatory Commission One White Flint, North (MS 08G9)11555 Rockville Pike Rockville, Maryland 20852-2739 Mr. Eugene F. Guthrie, Branch Chief U.S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, S.W., Suite 23T85 Atlanta, Georgia 30303-8931 NRC Resident Inspector Browns Ferry Nuclear Plant 10833 Shaw Road Athens, Alabama 35611-6970 ENCLOSURE TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)UNIT 1 CORE OPERATING LIMITS REPORT (COLR), REVISION 1 FOR CYCLE 8 OPERATION (SEE ATTACHED)
QA Document TVA Nuclear Non-Proprietary SiNuclear Nuclear Fuel Design -BWRFE 1101 Market Street, Chattanooga, TN 37402 Browns Ferry Unit I Cycle 8 Core Operating Limits Report, (105% OLTP)TVA-COLR-BFI C8 Revision 1 (Final)November 2008 Page 1 Prepare -Date: "---TW.Eichenberg, Sr. Sp cialist Verified:
49ý1 4 Date: W. B. Bird, Engineer Approved:
Date: G. C. Storey, ManageriBWR Fuel Engineering Reviewed: Date:;4011Kck, Super sor, Reactor Engineering Approved:
Cati , hO Date: Chair n'P~OC 1/ C6 /.' a V (1 /-7 /Z00W 4(7 (za. 6a AT 1-2-EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)Pages Affected:
All Browns Ferry Unit 1 Cycle 8 TVA-COLR-BF1C8 Core Operating Limits Report, (105% OLTP) Revision 1 (Final), Page 2 Table of Contents Total Number of Pages = 38 (including review cover sheet)L ist of T a b le s& ..................
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3 L is t o f F ig u re s ...............................................................................................................................
4 R e v is io n L o g .................................................................................................................................
5 N o m e n c la tu re ................................................................................................................................
6 R e fe re n c e s ....................................................................................................................................
8 1 In tro d u c tio n ..........................................................................................................................
9 1.1 Purpose .....................................................
9 1 .2 S c o p e ............................................................................................................................
9 1.3 Fuel Loading .......................................................................................................
9 1.4 A cceptability
......................................................................................................
.....9 2 A P L H G R L im its ..................................................................................................................
1 1 2.1 Rated Power and Flow Limit: APLHGRRATED
.........................................................
11 2.2 Off-Rated Power Dependent Limit: APLHGRp .......................................................
11 2.3 Off-Rated Flow Dependent Limit: APLHGRF .........................................................
11 2.4 Single Loop Operation Limit: APLHGRSLO
..............................................................
11 2.5 Equipment Out-Of-Service Corrections
...................................................................
14 3 LHGR Limits ........................................................................
15 3.1 Rated Power and Flow Limit: LHGRRATED
..............................................................
15 3.2 Off-Rated Power Dependent Limit: LHGRp ............................................................
15 3.3 Off-Rated Flow Dependent Limit: LHGRF ..............................................................
15 3.4 Single Loop Operation Limit: LHGRSLO ..................................................................
15 3.5 Equipment Out-Of-Service Corrections
...................................................................
15 4 O L M C P R L im its ......................
................................
.................................................
24 4.1 Rated Power and Flow Limit: MCPRRATED
..............................................................
24 4.1.1 Scram Timing Dependence
............................................................................
24 4.1.2 Equipment Out-Of-Service (EOOS) Options ..................................................
25 4.1.3 Exposure Dependent Limits ...................................
25 4.2 Flow Dependent MCPR Limit: MCPRF ...................................................................
25 4.3 Single Loop Operation Limit: MCPRSLO ................................................................
26 4.4 Power Dependent MCPR Limit: MCPRp ................................................................
26 5 APRM Flow Biased Rod Block Trip Settings ................................................................
36 6 Rod Block Monitor (RBM) Trip Setpoints and Operability
.............................................
37 7 Shutdown Margin Limit ...................................................................................................
38 EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cyde 8 -Core Operating Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 3 List of Tables Nuclear Fuel Types .....................................................................................................................
10 Analytical RBM Trip Setpoints
................................................................................................
37 RBM Setpoint Applicability
...........................................................................................................
37 EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 TVA-COLR-BF1C8 Core Operating Limits Report, (105% OLTP) Revision 1 (Final), Page 4 List of Figures A P LH G R pATED for G E l 3 Fuel ......................................................................................................
12 APLHGRpATED for GEl4 Fuel ..................................................................................................
13 LHGRRATED for GEl3 U0 2 Fuel ..............................................................................................
17 LHGRRATED for GEl4 U0 2 Fuel ..............................................................................................
18 LHGRFACp for All EIS or RPTOOS Conditions
.....................................................................
19 LHGRFACp for RPTOOS and TBVOOS Conditions
...............................................................
20 LHGRFACp for RPTOOS and PLUOOS Conditions
..............................................................
21 LHGRFACp for RPTOOS, TBVOOS, and PLUOOS Conditions
.........................................
22 L H G R F A C F .................................................................................................................................
2 3 M C P R F ........................................................................................................................................
2 7 MCPRRatld for GE13: BOC to MOC Exposure ........................................................................
28 MCPRRated for GE13: BOC to EOC Exposure .......................................................................
29 MCPRRatld for GE14: BOC to MOC Exposure .......................................................................
30 MCPRRatld for GE14: BOC to EOC Exposure .......................................................................
31 Kp Multiplier and MCPRp for All Equipment In Service or RPTOOS .......................................
32 Kp Multiplier and MCPRp for RPTOOS and TBVOOS ............................................................
33 Kp Multiplier and MCPRp for RPTOOS and PLUOOS ............................................................
34 Kp Multiplier and MCPRp for RPTOOS, TBVOOS, and PLUOOS .........................................
35 EDMS L3 08106 02 BE-207, eviion (Fnal EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cyde 8 Core Operating Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 5 Revision Log I I Number Page Description 1-RO All New document, per NFDP-1, Section 3.2, Item N.1-R1 2-5 Updated as a consequence of document revision 2-Ri 8 Removed Reference 1 and added new References.
References 2 & 3 renumbered to become References 7 & 8.Revised Section 1.2 for document scope. Revised Section 1.3 text to reflect SRLR applicability.
4-R1 11 Section 2 becomes Section 7, page 38.5-R1 11-37 Sections 2-6: new material supporting all modes of plant operation.
EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 Core Operaling Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 6--- ------ ........ ------- -----------
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Nomenclature APLHGR APRM AREVA NP ARTS BOC BWR CAVEX CD COLR CPR CPRFAC CRWE DTSP EIS EOC EOFP EOOS EOR Average Planar LHGR Average Power Range Monitor Vendor (Framatome, Siemens)APRM,,RodBlock Monitor, and Technical Specification Improvement Program Beginning of Cycle Boiling Water Reactor Core Average Exposure Coastdown" Core Operating Limits Report Critical Power Ratio Multiplier to determine off-rated OLMCPR, relative to rated conditions Control Rod Withdrawal Error Dual TSP Equipment-In-Service End of Cycle End of Full Power (no ICF or FFWTR)Equipment OOS End of Rated Conditions FFWTR FHOOS GWd HPSP HTSP ICF IPSP ITSP Final Feedwater Temperature Reduction Feedwater Heaters OOS Giga Watt Day High PSP High TSP Increased Core Flow (beyond rated)Intermediate PSP Intermediate TSP Vendor Specific Nomenclature for CPRFAC Linear Heat Generation Rate LHGR Multiplier (Power or Flow dependent)
Low Power Range Monitor Low PSP Generator Load Reject, No Bypass Low TSP MAPLHGR multiplier (Power or Flow dependent)
Minimum CPR Middle of Cycle Main Steam Isolation Valve MSIV OOS LHGR LHGRFAC LPRM LPSP LRNB LTSP MAPFAC MCPR MOC MSIV MSIVOOS EDS:L32 0816 0 BE27 evson1(Fnl EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 TVA-COLR-BF1C8 Core Operating Limits Report, (105% OLTP) Revision 1 (Final), Page 7 MSR Moisture Separator Reheater MSROOS MSR OOS MTU Metric Ton Uranium MWd/MTU Mega Watt Day per Metric Ton Uranium NEOC Near EOC NFT Nuclear Fuel Type NRC United States Nuclear Regulatory Commission NSS Nominal Scram Speed NTSP Nominal TSP .OLMCPR MCPR Operating Limit OOS Out-Of-Service OLTP Original Licensed Thermal Power (100% OLTP, 3293 MWt)Pbypass Power, below which TSV Position and TCV Fast Closure Scrams are bypassed PLU Power Load Unbalance PLUOOS PLU OOS PSP Power Setpoint RBM Rod Block Monitor RPT Recirculation Pump Trip RPTOOS RPT OOS SDM Shutdown Margin SLMCPR MCPR Safety Limit SLO Single Loop Operation SRV Safety Relief Valve SRVOOS SRV OOS TAU Vendor Specific Variable (T) Representing Scram Timing.TBV Turbine Bypass Valve TBVIS Turbine Bypass Valves IS TBVOOS Turbine Bypass Valves OOS TCV Turbine Control Valve TIP Transverse In-Core Probe TIPOOS TIP OOS TLO Two Loop Operation TSP Trip Setpoint TSSS Technical Specification Scram Speed TSV Turbine Stop Valve TVA Tennessee Valley Authority E DM" : L 3 0 8 1 1 0 6 8 0 2. .......ev s i o.1( F i a l EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 TVA-COLR-BF1C8 Core Operating Limits Report, (105% OLTP) Revision 1 (Final), Page 8 References
- 1. 0000-0077-8380-SRLR, Revision 0, Supplemental Reload Licensing Report Browns Ferry 1 Reload 7 Cycle 8, Global Nuclear Fuels, Inc., August 2008.2. 0000-0044-1520-SRLR, Revision 0, Supplemental Reload Licensing Report Browns Ferry 1 Reload 6 Cycle 7, Global Nuclear Fuels, Inc., January 2007.3. 0000-0077-8380-FBIR, Revision 0, Fuel Bundle Information Report Browns Ferry 1 Reload 7 Cycle 8, Global Nuclear Fuels, Inc., August 2008.4. 0000-0043-8325-FBIR, Revision 0, Fuel Bundle Information Report Browns Ferry I Reload 6 Cycle 7, Global Nuclear Fuels, Inc., May 2006.5. 0000-0079-8898-RO, Revision 0,.Browns Ferry Nuclear Plant Unit I Reload 7 Cycle 8 Off-Rated Limits Validation at a Rated Thermal Power of 3458 MWt, GE Hitachi Nuclear Energy, July 2008.6. GNF S-0000-0091-6104, Revision 0, GESTAR II Re-Examination of Bases for Browns Ferry Unit I Cycle 8, Global Nuclear Fuels, Inc., November 7, 2008.Methodologqy References
- 7. NEDE-2401 1-P-A-16, General Electric Standard Application for Reactor Fuel, October 2007.8. NEDE-2401 1-P-A-16-US, General Electric Standard Application for Reactor Fuel (Supplement for United States), October 2007.PRNM Setpoint References
- 9. Filtered Setpoints
-EDE-28-0990 Rev. 3 Supplement E, "PRNM (APRM, RBM, and RFM) Setpoint Calculations
[ARTS/MELLL (NUMAC) -Power-Uprate Condition]
for Tennessee Valley Authority Browns Ferry Nuclear Plant", October 1997 10. Unfiltered Setpoints
-EDE-28-0990 Rev. 2 Supplement E, "PRNM (APRM, RBM, and RFM) Setpoint Calculations
[ARTS/MELLL (NUMAC) -Power-Uprate Condition]
for Tennessee Valley Authority Browns Ferry Nuclear Plant", October 1997.11. GE Letter LB#: 262-97-133, Browns Ferry Nuclear Plant Rod Block Monitor Setpoint Clarification
-GE Proprietaty Information, September 12, 1997 12. NEDC-32433P, Maximum Extended Load Line Limit and ARTS Improvement Program Analyses for Browns Ferry Nuclear Plant Unit 1, 2, and 3, GE Nuclear Energy, April 1995 EOMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1iCycle 8 TVA-COLR-BF1C8 Core Operating Limits Report, (105% OLTP) Revision 1 (Final), Page 9 1 Introduction In anticipation of cycle startup, it is necessary to describe the expected limits of operation.
1.1 Purpose
The primary purpose of this document is to satisfy requirements identified by unit technical specification section 5.6.5. This document may be provided, upon final approval, to the NRC.1.2 Scope This document will discuss the following areas:> Average Planar Linear Heat Generation Rate (APLHGR) Limit (Technical SpecificatiOns 3.2.1 and 3.7.5)> Linear Heat Generation Rate (LHGR) Limit (Technical Specification 3.2.3, 3.3.4.1, and 3.7.5)> Minimum Critical Power Ratio Operating Limit (OLMCPR)(Technical Specifications 3.2.2, 3.3.4.1, and 3.7.5)> Average Power Range Monitor (APRM) Flow Biased Rod Block Trip Setting (Technical Requirements Manual Section 5.3.1 and Table 3.3.4-1)> Rod Block Monitor (RBM) Trip Setpoints and Operability (Technical Specification Table 3.3.2.1-1)
> Shutdown Margin (SDM) Limit (Technical Specification 3.1.1)1.3 Fuel Loading The core will contain all Global Nuclear Fuels, Inc., GE13/GE14 fuel. Nuclearfuel types used in the core loading are shown in Table 1.1. The core shuffle and final loading were assessed to determine Reference 1 applicability relative to minor loading changes. The vendor has determined Reference 1 remains applicable, per Reference
6.1.4 Acceptability
Limits discussed in this document were generated based on NRC approved methodologies per References 7 and 8.EDS 3 816 0 F-77 evso Fnl EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cyde 8 Core Operating Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 10 Table 1.1 Nuclear Fuel Types*Nuclear Original Number of Fuel Type Fuel Names Fuel Description Cycle Assemblies (NFT) (Range)GE13-P9DTB156-NOG-10OT-146-T6-2887 7 56 3 JLX101-JLX156 GE13-P9DTB163-NOG-10OT-146-T6-2888 7 52 12 JLX157-JLX208 GE14-P1ODNAB157-NOG-10OT-150-T6-2889 7 9 4 JLX209-JLX432 GE14-Pi0DNAB377-i 6GZ-10OT-150-T6-2890 7 95 5 JLX433-JLX528 GE14-P10DNAB402-16GZ-10OT-150-T6-2891 7 32 6 JLX529-JLX560 GE14-P1ODNAB350-16GZ-10OT-150-T6-2892 7 32 7 JLX561 -JLX592 GE14-P1ODNAB419-16GZ-100T-150-T6-2894 7 32 9 JLX613-JLX644 GE14-P1 DNAB368-15GZ-1 GOT-1 50-T6-2895 7 72 10 JLX645-JLX716 GE14-P10DNAB402-19GZ-100T-150-T6-2896 7 24 11 JLX717-JLX740 GE1 4-P10 DNAB377-17GZ-1 GOT-1 50-T6-2897 7 32 13 JLX741 -JLX772 GE14-P10DNAB406-16GZ-10IOT-'50-,T6-30787
-! 8 48 14 JYE101-JYE148 GE14-P10DNAB406-15GZ-10OT-150-T6-3079 8 64 16 JYE245-JYE308 GE14-P10DNAB418-16GZ-10OT-150-T6-3080 8 72 18 JYE357-JYE428 GE14-P10DNAB400-17GZ-10OT-150-T6-3081 8 96 15 JYE149-JYE244 GE14-P10DNAB417-16GZ-10OT-150-T6-3082 8 48 17 JYE309-JYE356 The table identifies the expected fuel type breakdown in anticipation of final core loading. The final composition of the core depends upon uncertainties during the outage such as discovering a failed fuel bundle, or other bundle damage. Minor core loading changes, due to unforeseen events, will conform to the safety and monitoring requirements identified in this document.EDIVIS: L32 081106 802 BFE-2707, Revisi Browns Ferry Unit 1 Cyde 8 TVA-COLR-BF1C8 Core Operating Limits Report, (105% OLTP) Revision 1 (Final), Page 11 2 APLHGR Limits (Technical Specifications 3.2.1 & 3.7.5)The APLHGR limit is determined by adjusting the rated power APLHGR limit for off-rated power, off-rated flow, and SLO conditions.
The most limiting of these is then used as follows: APLHGR limit = MIN (APLHGRp, APLHGRF, APLHGRsLo) where: APLHGRp off-rated power APLHGR limit [APLHGRRATED
- MAPFACp]APLHGRF off-rated flow APLHGR limit [APLHGRRATED
SLO Multiplier]
2.1 Rated
Power and Flow Limit: APLHGRpRATED The rated conditions APLHGR, for the different fuel types, are identified in References 1 & 2, and are shown in Figure 2.1 (GEl3) and Figure 2.2 (GEl4).2.2 Off-Rated Power Dependent Limit: APLHGRp References 1 & 8, for both GEl 3 and GE14 fuel, does not specify a power dependent APLHGR.Therefore, MAPFACp is set to a value of 1.0.2.3 Off-Rated Flow Dependent Limit: APLHGRF Reference 1 & 8, for both GE13 and GE14 fuel, does not specify a flow dependent APLHGR.Therefore, MAPFACF is set to a value of 1.0.2.4 Single Loop Operation Limit: APLHGRsLo The single loop operation multiplier for GEl 3 fuel is 0.87; and for GE14 fuel is 0.93, per Reference 1.EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDIVIS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 Core Operaling Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 12 15 12 4--J a-9 6 3 0 0 20 40 60 Planar Average Exposure (GWd/MTU)Planar Avg. Planar Avg. APLHGR Exposure Exposure Limit 0.00 0.00 13.42 21.74 19.72 13.42 30.00 27.22 12.29 70.00 63.50 8.90 Figure 2.1 APLHGRRATED for GEl3 Fuel 80 EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cyde 8 Core Operaling Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 13 15 12 4-9 6 3 0.0 20 40 60 Planar Average Exposure (GWd/MTU)80 Planar Avg. Planar Avg. APLHGR Exposure Exposure Limit 0.00 0.00 12.82 21.09 19.13 12.82 63.50 57.61 8.00 70.00 63.50 5.00 Figure 2.2 APLHGRRATED for GEl4 Fuel EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 Core Operaling Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 14 2.5 Equipment Out-Of-Service Corrections The limit shown in Figure 2.1 and Figure 2.2 are applicable for operation with all equipment In-Service as well as the following Equipment Out-Of-Service (EOOS) options; including combinations of the options. All equipment service conditions support 1 SRVOOS.In-Service RPTOOS TBVOOS PLUOOS FHOOS (or FFWTR)All equipment In-Service EOC-Recirculation Pump Trip Out-Of-Service Turbine Bypass Valve(s) Out-Of-Service Power Load Unbalance Out-Of-Service Feedwater Heaters Out-Of-Service or Final Feedwater Temperature Reduction Single Recirculation Loop Operation (SLO) requires the application of the SLO multipliers to the rated APLHGR limits as described previously.
EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L232 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 TVA-COLR-BF1C8 Core Operating Limits Report, (105% OLTP) Revision 1 (Final), Page 15 3 LHGR Limits.(Technical Specification 3.2.3, 3.3.4.1, & 3.7.5)The LHGR limit is determined by adjusting the rated power LHGR limit for off-rated power and off-rated flow conditions.
The most limiting of these is then used as follows: LHGR limit = MIN ( LHGRp, LHGRF)where: LHGRp off-rated power LHGR limit [LHGRRATED*
LHGRFACp]LHGRF. off-rated flow-LHGR limit [LHGRRATED*
LHGRFACF]LHGRSLO SLO LHGR limit [LHGRRATED*
SLO Multiplier]
3.1 Rated
Power and Flow Limit: LHGRRATED The rated conditions LHGR, for both fuel types, are identified in References 3 & 4, and are shown in Figure 3.1 (GE13) and Figure 3.2 (GE14) for U02 fuel. Separate, concentration dependent limits apply for rods containing Gadolinium; for each bundle design LHGR limits are provided in References 3 & 4.3.2 Off-Rated Power Dependent Limit: LHGRp For GE13/14 fuel, LHGR limits are adjusted for off-rated power conditions using the LHGRFACp multiplier provided in Reference 5 The multiplier is dependent on EOOS conditions.
Consequently, the multipliers are shown in Figure 3.3 thru Figure 3.6, for various EOOS conditions/combinations.
3.3 Off-Rated Flow Dependent Limit: LHGRF For GE 13/14 fuel, LHGR limits are adjusted for off-rated flow conditions using the LHGRFACF multiplier provided in Reference
- 5. LHGRFACf is fuel type independent.
There are no EOOS dependencies for the multiplier.
The multiplier is shown in Figure 3.7.3.4 Single Loop Operation Limit: LHGRSLO The single loop operation multiplier for GEl 3 fuel is 0.87; and for GE14 fuel is 0.93, per Reference
1.3.5 Equipment
Out-Of-Service Corrections The limit shown in Figure 3.1 is applicable for operation with all equipment In-Service as well as the following Equipment Out-Of-Service (EOOS) options; including combinations of the options.All equipment service conditions support 1 SRVOOS.EDMS L3 08106802BFE270, Rvison (Fnal EDIVIS: L32 081106 802 BFE-2707, Revisi Browns Ferry Unit 1 Cycle 8 Core Operatinc Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 16 In-Service RPTOOS TBVOOS PLUOOS FHOOS (or FFWTR)All equipment In-Service EOC-Recirculation Pump Trip Out-Of-Service Turbine Bypass Valve(s) Out-Of-Service Power Load Unbalance Out-Of-Service Feedwater Heaters Out-Of-Service or Final Feedwater Temperature Reduction Off-rated power corrections shown in Figure 3.3 thru Figure 3.6 cover various EOOS scenarios.
The limits have no dependency on FHOOS/FFWTR.
EOMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cyde 8 Core Operating Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 17 15 12 9 S6 3 0 0 20 40 Pellet Exposure (GWd/MTU)60 80 Pellet Pellet LHGR Exposure Exposure Limit 0.00 I 0.00 14A0'14.60 I 13.24 14.40 30.00 27.22 12.29 70.00 63.50 8.90 Figure 3.1 LHGRRATED for GE13 U0 2 Fuel EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 Core Operaling Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision I (Final), Page 18 15 12 CD-J 9 6 3 0 0.20 40 60 Pellet Exposure (GWd/MTU)Pellet Pellet LHGR Exposure Exposure Limit 0.00 0.00 13.40 16.00 14.51 13.40 63.50 57.61 8.00 70.00 63.50 5.00 Figure 3.2 LHGRRATED for GE14 U0 2 Fuel 80 EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 Core Operaling Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 19----- ----- ---1.10 1.00 0.90 _0.80 _ _W 0.70-J 0.60 q,. Core Flow < 50%.0.50.Core Flow > 50%0.40 0.30 20 30 40 50 60 70 80 90 100 110 Core Power (% Rated)Core Power LHGRFACp 100.0 1.000 50.0 0.739 50.0 0.688 30.0 0.614 Core Flow > 50% Rated 30.0 0.460 25.0 0.428 Core Flow <= 50% Rated 30.0 0.538 25.0 0.533 Figure 3.3 LHGRFACp for All EIS or RPTOOS Conditions (with and without FHOOS)EMS:L2010682BE277 eiio Fnl EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cyde 8 Core Operabng Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 20 1.10 1.00 0.90 0.80 0.70 0"-j 0.60 0.50 0.40 0.30 20 30 40 50 60 70 80 90 100 110 Core Power (% Rated)Core Power LHGRFACp..........
100.0 I 1.000 50.0 I 0.739 50.0 0.688 30.0 0.614 Core Flow > 50% Rated 30.0 0.371 25.0 1 0.315 Core Flow <= 50% Rated 30.0 0.549 25.0 0.473 Figure 3.4 LHGRFACp for RPTOOS and TBVOOS Conditions (with and without FHOOS)ED S ....08 106 ..2.........Revison.1.Final EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 Core Operatinq Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 21-------- -----1.10 1.00 0.90 0.80 01.0.70-CI 0.60 0.50 0.40 0.30 20 30 40 50 60 70 80 90 100 110" Core Power (% Rated)Core Power LHGRFACp 100.0 1.000 70.0 0.843 60.0 0.725 30.0 0.614 Core Flow > 50% Rated 30.0 0.460 25.0 0.428 Core Flow <= 50% Rated 30.0 0.538 25.0 1 0.533 Figure 3.5 LHGRFACp for RPTOOS and PLUOOS Conditions (with and without FHOOS)EOMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L32 081106 802 BFE-2707, Revision I (Final)
Browns Ferry Unit 1 Cyde 8 Core Operatinq Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 22 1.10 1.00 0.90 0.80 0.U-n, 0.70 0"-J 0.60 0.50 0.40 0.30 20 30 40 50 60 70 80 90 100 110 Core Power (% Rated)Core Power LHGRFACp 100.0 1.000 70.0 0.843 60.0 0.725 30.0 0.614 Core Flow > 50% Rated 30.0 I 0.371 25.0 0.315 Core Flow <= 50% Rated 30.0 I 0.549 25.0 0.473 Figure 3.6 LHGRFACp for RPTOOS, TBVOOS, and PLUOOS Conditions (with and without FHOOS)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 Core Operaling Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Finall. Paae 23 Revision 1 (Final) Page 23... .... ým ........ -.'-g ... I -------------------
1.10 Max Flow 102.5%1.05 -Max Flow 107.0% -1.00 -0.95 /0.90 --"/C.)0.85_j 0.80 --0.75 0.70 0.65 0.60 30 40 50 60 70 80 90 100 110 Core Flow (% Rated)Max. Core Row of 102.5%Core Flow- LHGRFACF..... 11- 3 30.0 0.69 75.8 1 102.5 1 Max. Core Flow of 107.0%Core Flow LHGRFACF 30.0 0.66 80.3 1 107.0 1 Figure 3.7 LHGRFACF (Values bound all EOOS conditions)
(102.5% maximum core flow line is used to support 100% rated flow operation)
(107.0% maximum core flow line is used to support 105% rated flow operation, ICF)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDIVIS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 Core Operaling Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 24 4 OLMCPR Limits (Technical Specification 3.2.2, 3.3.4.1, & 3.7.5)The OLMCPR limit is determined by adjusting the rated power MCPR limit for off-rated power and off-rated flow conditions.
The most limiting of these is then used as follows: OLMCPR limit = MAX (-MCPRF, MCPRp)where: MCPRp MCPRF MCPRSLO off-rated power MCPR limit off-rated flow MCPR limit SLO MCPR limit[MCPRRATED
- Kp][MCPRp + SLO Adder]4.1 Rated Power and Flow Limit: MCPRRATED The rated conditions MCPR, for both fuel types, are identified in Reference
- 1. The rated power and flow limits for various cycle exposure windows, and EOOS scenarios, are shown in Figure 4.2 thru Figure 4.5. --OLMCPR is calculated to be the most limiting of the flow or power dependent values.4.1.1 Scram Timing Dependence The MCPRRATED has a scram timing dependence which is assessed after control blade timing shortly after startup, and is discussed as follows: T 0.0 or, Tave -TB , whichever is greater TA TB where: 'TA = 1.096 sec (analytical Option A scram time limit based on dropout time for notch position 36)Tave n-it+/-1.65*cy*L.i]ý EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDIVIS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit I Cycle 8 Core Operaling Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 25 I where-.-= 0.019 sec (mean scram time used in transient analysis based on dropout time for notch position 36)(standard deviation of p)N = Total number of active rods measured in Technical Specification Surveillance Requirement SR 3.1.4.1 n = Number of surveillance rod tests performed to date in cycle= Scram time (dropout time) from fully withdrawn to notch position 36 for the ith rod For reactor startup, Option A limits (T=1.0) shall be used prior to the determination of T in accordance with SR 3.1.4.1.4.1.2 Equipment Out-Of-Service (EOOS) Options All equipment service conditions support 1 SRVOOS. EOOS options, including combinations, covered by MCPRp limits are given by the following:
In-Service RPTOOS -TBVOOS PLUOOS FHOOS (or FFWTR)All equipment In-Service EOC-Recirculation Pump Trip Out-Of-Service Turbine Bypass Valve(s) Out-Of-Service Power Load Unbalance Out-Of-Service Feedwater Heaters Out-Of-Service (or Final Feedwater Temperature Reduction)
4.1.3 Exposure
Dependent Limits Exposures are tracked on a cycle exposure basis. Higher exposure limits are always more limiting, and may be used for any cycle exposure up to the ending exposure.
Cycle Exposure Ranges are defined as follows:...., BOC to MOC: where MOC corresponds to EOR* -2725 MWd/MTU (2472 MWd/ST).BOC to EOC EOC exposure includes cycle extension options such as final feedwater reduction (FFTR) and power coastdown.
4.2 Flow Dependent MCPR Limit: MCPRF MCPRF limits are dependent upon core flow (% of Rated), and the max core flow limit, (Rated or Increased Core Flow, ICF). MCPRF limits are shown in Figure 4.1, per Reference
- 5. Limits are valid for all EOOS combinations.
No adjustment is required for SLO conditions.
.EOR is defined as the end of rated power capability for rated core flow and nominal feedwater temperature conditions.
EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 TVA-COLR-BF1C8 Core Operating Limits Report, (105% OLTP) Revision 1 (Final), Page 26 4.3 Single Loop Operation Limit: MCPRSLO The single loop operation adder for both GE13 and GE14 fuel is 0.02, per Reference
1.4.4 Power
Dependent MCPR Limit: MCPRp MCPRp limits are dependent upon core power level (% of Rated) and EOOS conditions.
KP Multipliers and/or MCPRp values are provided in Figure 4.6 thru Figure 4.9. Determination of power dependent MCPR is differentiated relative to Pbypass (30% Rated Power) as follows: P ; 30% (above Pbypass):
MCPRp = [MCPRRATED*
Kp]P < 30% (below Pbypass):
MCPRp = MCPRp EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDIVIS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 Core Operaling Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 27 2.00 1.80 1.60 C.1.40 1.20 1.00 30 40 50 60 70 80 90 100 Core Flow (% Rated)110 Max. Core Row of 102.5%Core Flow MCPR, 30.0 1.51 66.3 1.30 110.0 1.30 Max. Core Flow of 107.0%Core Flow MCPRF 30.0 1.55 71.9 1.30 110.0 1.30 Figure 4.1 MCPRF (Values bound all EOOS, and SLO conditions)
(102.5% maximum core flow line is used to support 100% rated flow operation)
(107.0% maximum core flow line is used to support 105% rated flow operation, ICF)EOMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 Core Operating Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 28 1.55 1.50'I 1.45 1.40 1.35 1.30 0.00 0.20' 0.40 0.60 0.80 Tau 1.00 Option A Option B Out-of-Service Condition Tau = 1.0 Tau = 0.0 All Equipment In-Service 1.38 1.38 RPTOOS 1.45 1.38 TBVOOS 1.43 1.40 PLUOOS 1.42 1.38 Combined RPTOOS & TBVOOS 1.50 1.43 Combined RPTOOS, TBVOOS, & PLUOOS 1.50 1.43 Figure 4.2 MCPRRated for GE13: BOC to MOC Exposure (Values support 1SRVOOS & FHOOS/FFTR conditions)
EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 Core Operatinq Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 29 1.60 1.55 w'I a.C., 1.50 1.45 1.40 1.35 L-0.00 0.20 0.40 0.60 0.80 Tau 1.00 Option A Option B Out-of-Service Condition Tau = 1.0 Tau = 0.0 All Equipment In-Service 1.40 1.38 RPTOOS 1.52 1.41 TBVOOS 1.45 1.42 PLUOOS 1.49 1.38 Combined RPTOOS & TBVOOS 1.57 1.46 Combined RPTOOS, TBVOOS, & PLUOOS 1.57 1.46 Figure 4.3 MCPRRated for GEl3: BOC to EOC Exposure (Values support 1SRVOOS & FHOOS/FFTR conditions)
EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 Core Operating Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 30 1.65 1.60 1.55 C., 1.50 1.45 1.40.1.35 L-0.00 0.20 0.40 0.60 0.80 Tau 1.00 Option A Option B out-of-Service Condition Tau = 1.0 Tau = 0.0 All Equipment In-Service 1.44 1.41 RPTOOS 1.55 1.44 TBVOOS 1.50 1.47 PLUOOS 1.52 1.41 Combined RPTOOS & TBVOOS 1.60 1.49 Combined RPTOOS, TBVOOS, & PLUOOS 1.60 1.49 Figure 4.4 MCPRRated for GE14: BOC to MOC Exposure (Values support 1SRVOOS & FHOOS/FFTR conditions)
....MS:L2010 0 F -70,R vso Fnl EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cyde 8 Core Operatina Limits Report (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final). Pale 31 I, ra (.-1.75 1.70 1.65 1.60 1.55 1.50.1.45 1.40 ,1 S. _-3 Combined RPTOOS & TBVOOS Combined RPTOOS, TBVOOS, & PLUOOS All.EquipmenRPTOOS i i i" i ~ ~I 3V i i i i 0.00 0.20 0.40 0.60 0.80 1.00 Tau Option A Option B Out-of-Service Condition Tau = 1.0 Tau = 0.0 All Equipment In-Service 1.47 1.44 RPTOOS 1.63 1.46 TBVOOS 1.54 1.51 PLUOOS 1.61 1.44 Combined RPTOOS & TBVOOS 1.69 1.52 Combined RPTOOS, TBVOOS, & PLUOOS 1.69 1.52 Figure 4.5 MCPRRated for GE14: BOC to EOC Exposure (Values support 1SRVOOS & FHOOS/FFTR conditions)
EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cyde 8 Core Operaling Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 32 5.00 4.50 4.00 3.50 3.00 0.0 2.50 0.2.00 1.50 1.00 0.50 0.00 MCPRp for 0 40MCPRp for K,. Multip3lier 20 30 40 50 60 70 80 90 100 110 Core Power (% Rated)Core Power Kp 100.0 1.000 60.0 1.150 50.0 1.237 50.0 1.384 30.0 1.552 Core Flow > 50% Rated MCPRp 30.0 2.640 25.0 2.820 Core Flow <= 50% Rated MCPRp 30.0 2.150 25.0 2.200 Figure 4.6 Kp Multiplier and MCPRp for All Equipment In Service or RPTOOS (Values support 1SRVOOS & FHOOS/FFTR conditions)
EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 Core Operaling Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 33 5.00 4.50 4.00 3.50 3.00 a-2.50 2.00 1.50 1.00 0.50 0.00 N MCPRr, for Core Flow> 50%MCpRp forCore Flow< 50%Kp Multiplier
-" -.-20 30 40 50 60 70 80 90 100 110 Core Power (% Rated)Core Power Kp 100.0 1.000 60.0 1.150 50.0 1.237 50.0 1.384 30.0 1.552 Core Flow > 50% Rated MCPRp 30.0 3.550 25.0 4.290 Core Flow <= 50% Rated MCPRp 30.0 2.630 25.0 3.060 Figure 4.7 Kp Multiplier and MCPRp for RPTOOS and TBVOOS (Values support ISRVOOS & FHOOS/FFTR conditions)
EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 Core Operaling Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 34---------
----5.00 4.50 4.00 3.50 3.00 a-0 2.50 2.00 1.50 1.00 0.50 0.00 MCPRp for Core MCPRp for Core~Kp Multiplier 20 30 40 50 60 70 Core Power (% Rated)80 90 100 110 Core Power Kp 100.0 1.000 70.0 1.150 60.0 1.300 30.0 1.552 Core Flow > 50% Rated MCPRp 30.0 2.640 25.0 2.820 Core Flow <= 50% Rated MCPRp 30.0 2.150 25.0 2.200 Figure 4.8 Kp Multiplier and MCPRp for RPTOOS and PLUOOS (Values support 1SRVOOS & FHOOS/FFTR conditions)
EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDMIS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit I Cyde 8 Core Operaling Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 35 5.00 4.50 4.00 MCPRp o Core 3.50 3.00.. MCPRp for Core.2.50 (-2.00 1.50 --, 1.00 K,!0.50 0.00 20 30 40 50 60 70 Core Power (% Rated)80 90 100 110 Core Power Kp 100.0 1 1.000 70.0 I 1.150 60.0 1.300 30.0 1.552 Core Flow > 50% Rated MCPRp 30.0 I 3.550 25.0 I 4.290 Core Flow <= 50% Rated M CPRp 30.0 I 2.63 100.0 1.0600 Figure 4.9 Kp Multiplier and MCPRp for RPTOOS, TBVOOS, and PLUOOS (Values support 1SRVOOS & FHOOS/FFTR conditions)
EDMS: L32 081106 802 BFE-2707, Revision I (Final)EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 TVA-COLR-BF1C8 Core Operating Limits Report, (105% OLTP). Revision 1 (Final), Page 36 5 APRM Flow Biased Rod Block Trip Settings (Technical Requirements Manual Section 5.3.1 and Table 3.3.4-1)The APRM rod block trip setting is based upon References 9 & 10, and is defined by the following:
SRB < (0.66(W-AW)
+ 61%) Allowable Value SRB < (0.66(W-AW)
+ 59%) Nominal Trip Setpoint (NTSP)where: SRB = Rod Block setting in percent of rated thermal power (3458 MWt)W = Loop recirculation flow rate in percent of rated AW Difference between two-loop and single-loop effective recirculation flow at the same core flow (AW=0.0 for two-loop operation)
The APRM rod block trip setting is clamped at a maximum allowable value of 115%(corresponding to a NTSP of 113%).EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EDIVIS: L32 081106 802 BFE-2707, Revision 1 (Final)
Browns Ferry Uriit 1 Ccyde 8 Core Operating Limits Report, (105% OLTP)TVA-COLR-BF1C8 Revision 1 (Final), Page 37 6 Rod Block Monitor (RBM) Trip Setpoints and Operability (Technical Specification Table 3.3.2.1-1)
The RBM trip setpoints and applicable power ranges, based on References 9 & 10, are shown in Table 6.1. Setpoints are based on an HTSP, unfiltered analytical limit of 117%. Unfiltered setpoints are consistent with a nominal RBM filter setting of 0.0 seconds; filtered setpoints are consistent with a nominal RBM filter setting less than 0.5 seconds.Table 6.1 Analytical RBM Trip Setpoints*
RBM Trip Setpoint LPSP IPSP HPSP LTSP -unfiltered 7 filtered ITSP -unfiltered
-filtered HTSP -unfiltered
-filtered Allowable Value (AV)27%62%82%124.7%123.5%119.7%118.7%114.7%113.7%90%Nominal Trip Setpoint (NTSP)25%60%80%123.0%121.8%118.0%117.0%113.0%112.0%92%DTSP Generic CRWE based OLMCPR values were reported and verified per References 9, 10, 11, and 12. However, Reference 12 generic values were developed assuming a SLMCPR < 1.07.Consequently, cycle specific CRWE analyses were performed to support the current SLMCPR;values are reported in Reference
- 1. Cycle specific analysis results indicate the SLMCPR remains protected for RBM inoperable conditions (i.e., unblocked).
RBM setpoints in Technical Specification Table 3.3.2.1-1 are applicable as shown in Table 6.2.Table 6.2 RBM Setpoint Applicability Thermal Power Applicable Notes from (% Rated) MCPRt Table 3.3.2.1-1 Comment> 27% and < 90% < 1.70 (a), (b), (f), (h) two loop operation< 1.74 (a), (b), (f), (h) single loop operation_ 90% <1 .40 (g) two loop operationt
.Values are considered maximums.
Using lower values, due to RBM system hardware/software limitations, is conservative, and acceptable.
t MCPR values shown correspond with, (support), SLMPCR values identified in Reference 1.t Greater than 90% rated power is not attainable in single loop operation.
EDIVIS: L32 081106 802 BFIE-2707, Revision 1 (Final)
Browns Ferry Unit 1 Cycle 8 TVA-COLR-BF1C8 Core Operating Limits Report, (105% OLTP) Revision 1 (Final), Page 38 7 Shutdown Margin Limit (Technical Specification 3.1.1)Assuming the strongest OPERABLE control blade is fully withdrawn, and all other OPERABLE control blades are fully inserted, the core shall be sub-critical and meet the following minimum shutdown margin: SDM > 0.38% dklk EDMS: L32 081106 802 BFE-2707, Revision 1 (Final)EMS: L32 081106 802 BFE-2707, Revision 1 (Final)