JAFP-02-0139, James a FitzPatrick Core Operating Limits Report, Revision 12 (Cycle 15 Update)

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James a FitzPatrick Core Operating Limits Report, Revision 12 (Cycle 15 Update)
ML022070482
Person / Time
Site: FitzPatrick Constellation icon.png
Issue date: 07/10/2002
From: Ted Sullivan
Entergy Nuclear Northeast, Entergy Nuclear Operations
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
JAFP-02-0139
Download: ML022070482 (35)


Text

Entergy Nuclear Northeast Entergy Nuclear Operations, Inc.

James A. Fitzpatrick NPP nRP.O.

--"Ente-g Box 110 Lycoming, NY 13093 Tel 315 349'6024 Fax 315 349 6480 July 10, 2002 TA. Sullivan JAFP-02-0139 Vice President, Operations-JAF United States Nuclear Regulatory Commission Attn: Document Control Desk Mail Stop O-PI-17 Washington, DC 20555-0001 Subject James A. FitzPatrick Nuclear Power Plant Docket No. 50-333 Core Opatna Limits Reiort. Revision 12 (Cycle 15 update)

Dear Sir; Attached is Revision 12 to the James A. FitzPatrick Core Operating Uimits Report (COLR). This report is submitted in accordance with Technical Specifications 5.6.5, Core Operating Limits Report.

Revision 12 of the COLR incorporates changes as a result of TS Amendment 274 (Improved Technical Specifications). In addition, editorial corrections and administrative changes are included that do not alter the intent.

There are no commitments contained in this report.

Questions concerning this report may be addressed to Mr. William Drews (315) 349-6562.

Very truly yours, TAS:GB:dmr Attachment as stated cc: next page

cc: Regional Administrator U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Office of the Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 136 Lycoming, New York 13093 Mr. Guy Vissing, Project Manager Project Directorate I Division of Licensing Project Management U.S. Nuclear Regulatory Commission Mail Stop 8C2 Washington, DC 20555

SEn tergy NuclearNortheast ENTERGY NUCLEAR OPERATIONS, INC.

JAMES A. FITZPATRICK NUCLEAR POWER PL\NT REPORT CORE OPERATING LIMITS REPORT REVISION 12 REVIEWED BY: PLANT OPERATING REVIEW CONINIITTEE MEETING NO. oz. -/," DATE: 7* o APPROVED BY: William Drews " DATE: 7/1 /0 REACTOR ENGINEERING SUPERINTENDENT APPROVED BY: Brian O'Grady /vv DATE: ' I GENERAL Mý\ANAGER -, OPERA-TIONS

CORE OPERATING LIMITS REPORT CYCLE 15 TABLE OF CONTENTS SECTION PAGE 1.0 PURPOSE .......................................................................................................... 3 2.0 APPLICABILITY .............................................................................................. 3

3.0 REFERENCES

.................................................................................................. 3 4.0 DEFINITIONS .................................................................................................. 4 5.0 RESPONSIBILITIES ........................................................................................ 5 6.0 SPECIAL INSTRUCTIONS/REQUIREMENTS ........................................... 5 7.0 PROCEDURE .................................................................................................... 6 7.1 Operating Limit M CPR ......................................................................... 6 7.2 Average Planar Linear Heat Generation Rate (APLHGR) .................. 8 7.3 Linear Heat Generation Rate (LHGR) ................................................. 8 7.4 APRM Trip Settings ............................................................................... 9 7.5 RBM Upscale Rod Block Trip Setting ............................................... 10 7.6 Stability Option 1-D Exclusion Region and Buffer Zone .................... 10 7.7 Kf - Flow Dependent M CPR Limit ..................................................... 11 8.0 FIGURES AND TABLES ................................................................................ 12 9.0 EXHIBITS ......................................................................................................... 13 Rev. No. I12 Page 2 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 1.0 PURPOSE This report provides the cycle-specific operating limits for Cycle 15 of the James A.

FitzPatrick Nuclear Power Plant. The following limits are addressed:

"* Operating Limit Minimum Critical Power Ratio (MCPR)

"* Flow Dependent MCPR Limits

"* Average Planar Linear Heat Generation Rate (APLHGR)

"* Linear Heat Generation Rate (LHGR)

"* Flow-Biased Average Power Range Monitor (APRIM) and Rod Block Monitor (RBM)

Settings

"* Stability Option ID Exclusion Region 2.0 APPLICABILITY The plant shall be operated within the limits specified in this report. If any of these limits are violated, the corrective actions specified in the Technical Specifications shall be taken.

3.0 REFERENCES

3.1 JAFNPP Administrative Procedure 12.05, Control of Core Operating Limits Report.

3.2 JAFNPP Technical Specifications.

3.3 FitzPatrick Cycle 15 Core Reload Safety Evaluation, JAF-SE-00-045.

3.4 GE Report, Supplemental Reload Licensing Report for James A. FitzPatrick Reload 13 Cvclel4,J11-03359SRL, Rev.1, October 1998 3.5 GE Report, Supplemental Reload Licensing Report for James A. FitzPatrick Reload 12 Cvclel3, J11-02914SRL Rev.0, August 1996.

3.6 Design Change Package JD-99-091, Cycle 15 Core Reload 3.7 RAP-7.3.17, Core Monitoring Software and Database Changes.

3.8 Plant Operation Up To 10000 Power With One Steam Line Isolated, JAF-SE-96-035.

3.9 James A. FitzPatrick Nuclear Power Plant Kf Curve Update, GE-NE-J1 1-03426-00-01, September 1998.

3.10 General Electric Standard Application for Reload Fuel, NEDE-24011-P-A-14 Rev'. No. 12 Page 3of 34

CORE OPERATING LIMITS REPORT CYCLE 15 3.11 GE Letter, J. Baumgartner to P. Lemberg, Exposure Dependent LHGR Limit Curves, JAB-N8076, November 5, 1998.

3.12 GE Lattice Dependent MAPLHGR Report for James A. FitzPatrick, Reload 12 Cyclel3, J1 1-02914MAP, Rev. 0, August 1996.

3.13 GE Lattice Dependent MAPLHGR Report for James A. FitzPatrick, Reload 13, Cvcle14, J1 1-03359MAPL, Rev. 0, October 1998.

3.14 GE Letter, A. Alzaben to P. Lemberg, Revised FitzPatrick Cycle 14 Exclusion Region, AFA-00-N005, February 7, 2000.

3.15 JAF-SE-00-032, Rev.0, Extended Loadlne Limit Analysis (ELLLA) Implementation.

3.16 JAF-RPT-MISC-04054, Rev.0, Operation under Extended Loadline Limit Analysis (ELLLA) and Power Uprate 3.17 GNF Report, Supplemental Reload Licensing Report for James A. FitzPatrick Reload 14 Cycle15, J 11-037579SRL, Rev.0, Class I, August, 2000.

3.18 GNF Report, Lattice Dependent MAPLHGR Report for James A. FitzPatrick, Reload 14, Cycle15,J1 1-03757NMAPL, Rev. 0, Class III, August, 2000.

3.19 GE Letter, FitzPatrick APRM1 Flow Biased Rod Block and Scram Setpoints, NSA01-273, July 3, 2001 3.20 GE Letter, R. Kingston to P. Lemberg, Scram Time Versus Notch Positions for Option B, REK-E: 02-009, May 28, 2002 4.0 DEFINITIONS 4.1 Average Planar Linear Heat Generation Rate (APLHGR):

The APLHGR shall be applicable to a specific planar height and is equal to the sum of the heat generation rate per unit length of fuel rod for all the fuel rods in the specified assembly at the specified height divided by the number of fuel rods in the fuel assembly at the height.

4.2 Fraction of Limiting Power Density:

The ratio of the linear heat generation rate (LHGR) existing at a given location to the design LHGR. The design LHGR is given in Table 8.2.

4.3 Linear Heat Generation Rate(LHGR):

The LHGR shall be the heat generation rate per unit length of fuel rod. It is the integral of the heat flux over the heat transfer area associated with the unit length.

Rev,. No. 12 Page 4 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 4.4 Maximum Fraction of Limiting Power Density (MFLPD):

The MFLPD shall be the largest value of the fraction of limiting power density in the core.

The fraction of limiting power density shall be the LHGR existing at a given location divided by the specified LHGR limit for that bundle type.

4.5 Minimum critical power ratio (AICPR):

The MCPR shall be the smallest critical power ratio (CPR) that exists in the core for each type of fuel. The CPR is that power in the assembly that is calculated by application of the appropriate correlation(s) to cause some point in the assembly to experience boiling transition, divided by the actual assembly operating power.

4.6 Rated Recirculation Flow:

That drive flow which produces a core flow of 77.0 x 106 lb/hr.

5.0 RESPONSIBILITIES NOTE: See AP-12.05 (Reference 3.1).

5.1 Shift Manager:

Assure that the reactor is operated within the limits described herein.

5.2 Reactor Engineering Superintendent:

Assure that the limits described herein are properly installed in the 3D-MNonicore databank used for thermal limit surveillance (Reference 3.7) 6.0 SPECIAL INSTRUCTIONS/REQUIREMENTS Not Applicable Rev. No. 12 Page 5 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 7.0 PROCEDURE 7.1 Operating Limit MCPR During operation, with thermal power > 25% rated thermal power, the Operating Limit MCPR shall be equal to or greater than the limits given below.

7.1.1 Technical Specification LCO 3.2.2, Minimum Critical Power Ratio (MCPR) 7.1.2 The Operating Limit MCPR shall be determined based on the following requirement:

7.1.2.1. The average scram time to notch position 36 shall be:

TAE < TB 7.1.2.2. The average scram time to notch position 36 is determined as follows:

n Z Nir, ZNi WHERE:

n Number of surveillance tests performed to date in the cycle, N =- Number of active rods measured in the surveillance i

" =-j Average scram time to notch position 36 of all rods measured in surveillance test 1.

Rev. No. 12 Page 6 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 7.1.2.3. The adjusted analysis mean scram time is calculated as follows:

-1/2 TB(sec) + 1.6 5c N1 n

ii WHERE:

- Mean of the distribution for the average scram insertion time to the dropout of notch position 36 = 0.830 sec.

cy = Standard deviation of the distribution for average scram insertion time to the dropout of notch position 36 = 0.019 sec.

N - The total number of active rods measured in Technical Specification SR 3.1.4.4.

The number of rods to be scram tested and the test intervals are given in Technical Specification LCO 3.1.4, Control Rod Scram Times 7.1.3 When requirement of 7.1.2.1 is met, the Operating Limit TMCPR shall not be less than that specified in Table 8.1, Table 8.1.A or Table 8.1.B as applicable.

7.1.4 WHEN the requirement 7.1.2.1 is not met (i.e. TB < TAVE), THEN the Operating Limit MCPR values (as a function of T) are given in Figure 8.1, Figure 8.1.A or Figure 8.1.B as applicable.

(TAVE - TB)

(TA -TB)

WHERE:

TAVE = The average scram time to notch position 36 as defined in 7.1.2.2.

TB = The adjusted analysis mean scram time as defined in 7.1.2.3.

TA = the scram time to notch position 36 as defined in Technical Specification Table 3.1.4-1.

Rev. No. -12 Page 7 of 34

CORE OPERATING IIMITS REPORT CYCLE 15 NOTE: IF the operating limit MCPR obtained from these figures is determined to be less than the operating limit NICPR found in 7.1.3, THEN 7.1.3 shall apply.

7.1.5 During single-loop operation, the Operating Limit MCPR shall be increased by 0.01.

7.1.6 During reactor power operation with core flow less than 100 percent of rated, the Operating Limit MCPR shall be multiplied by the appropriate Kf specified in Figure 8.2.

7.2 Average Planar Linear Heat Generation Rate (APLHGR) 72.1 Technical Specification LCO 3.2.1, Average Planar Linear Heat Generation Rate (APLHGR) 7.2.2 During operation, with thermal power > 25% rated thermal power, the APLHGR for each fuel type as a function of axial location and average planar exposure shall be within limits based on applicable APLHGR limit values which have been approved for the respective fuel and lattice types.

7.2.3 When hand calculations are required, the APLHGR for each type of fuel as a function of average planar exposure shall not exceed the limiting value for the most limiting lattice shown in Figures 8.3.A through F.

7.2.4 During single loop operation, the APLHGR for each fuel type shall not exceed the values given in 7.2.2 or 7.2.3 above multiplied by the appropriate value (0.78 for GE12 fuel).

7.3 Linear Heat Generation Rate (LHGR) 7.3.1 Technical Specification LCO 3.2.3, Linear Heat Generation Rate (LHGR) 7.3.2 During operation, with thermal power > 25"0 rated thermal power, the LHGR for each fuel type as a function of axial location and average planar exposure shall be within limits based on applicable LHGR limit values which have been approved for the respective fuel and lattice types.

7.3.3 When hand calculations are required, the LHGR for each type of fuel as a function of average planar exposure shall not exceed the limiting value for the most limiting lattice as specified in Table 8.2 and shown in Figure 8.5.

Rev. No. 12 Page 8 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 7.4 APRM Trip Settings 7.4.1 APRM Flow Referenced Flux Scram Trip Setting (Run Mode) 7.4.1.1. Technical Specifications:

LCO 3.2.4, Average Power Range Monitor (APRMNI Gain and Setpoint LCO 3.3.1.1, Reactor Protection System (RPS) Instrumentation 7.4.1.2. When operating in Mode 1, the APRNM Neutron Flux-High (Flow Biased)

Trip setting shall be:

S _<0.58W + 66%o for two loop operation; S < 0.58W + 66% - 0.58 AW for single loop operation; WHERE:

S - Setting in percent of rated thermal power; W = Recirculation flow in percent of rated; AW = Difference between two loop and single-loop effective drive flow at the same core flow.

NOTE: Concerning APRM Neutron Flux-High (Flow Biased) Rod Block and Scram Trip settings: Reference 3.19 establishes Equivalent Analytical Limits for these settings. The nominal trip setpoint S < 0.58W + 62%

(with clamp at 1170o) for the Scram. Compliance with the "Allowed Region of Operation" on the Power-Flow Map, Figure 3.7-1 of the FSAR is defined by the equation 0.58W + 50% and is individually controlled and assures boundaries are not exceeded during normal operation.

7.4.1.3. In the event of operation with a Maximum Fraction of Limiting Power Density (MFLPD) greater than the Fraction of Rated Power (FRP), the setting shall be modified as follows:

S < (0.58W + 66%)(FRP/NIFLPD) for two loop operation; S _< (0.58W + 66q0 - 0.58 AWV)(FRP/MFLPD) for single-loop operation; WHERE:

FRP = Fraction of Rated Power; MFLPD = Maximum Fraction Of Limiting Power Density, see Definition 4.4.

The ratio of FRP to MFLPD shall be set equal to 1.0 unless the actual operating value is less than the design value of 1.0, in which case the actual operating value will be used.

Rev. No. -12 Page 9 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 7.4.2 APRM Neutron Flux-High (Flow Biased) Rod Block Trip Setting (Relocated to the Technical Requirements Manual) I 7.5 RBM Upscale Rod Block Trip Setting I

7.5.1 Technical Specification LCO 3.3.2.1, Control Rod Block Instrumentation 7.5.2 The RBM upscale rod block trip setting shall be:

S < 0.66W + K for two loop operation; S < 0.66W + K - 0.66 AW for single loop operation; WHERE:

S = rod block setting in percent of initial; W Loop flow in percent of rated K = Intercept values of 39%, 40%, 4100, 4200, 43%, and 44% can be used with the appropriate MCPR Operating Limit from Table 8.1 (note for Cycle 15 the RBM intercept value does not effect the MCPR Operating Limit for K values <_ 44%0)

AW Difference between two loop and single loop effective drive flow at the same core flow.

7.6 Stability Option 1-D Exclusion Region and Buffer Zone.

7.6.1 Technical Specification LCO 3.4.1, Recirculation Loops Operating I 7.6.2 The reactor shall not be intentionally operated within the Exclusion Region given in Figure 8.4 when the SOLOMON Code is operable.

7.6.3 The reactor shall not be intentionally operated within the Buffer Zone given in Figure 8.4 when the SOLOMON Code is inoperable.

Rev. No. -12 Page 10 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 7.7 Kf - Flow Dependent MCPR Limit Figure 8.2 is the Kf limit. Values of Kf are obtained using the following equation (see Reference 3.9):

Kf = MAX [1.0, A - SLOPE

  • WTI WHERE:

WT = Core Flow as % of Rated, 30% < WT < 1000%

SLOPE = (A/100/OLNICPR ) * (SLNICPR /SLMCPR generic )

A = (B,./OLNICPR ) (SLMICPR /SLNICPR generic)

SLNMCPR generic :-- 1.07 SLMCPR = Technical Specification LCO 2.1.1, Reactor Core SLs OLMCPR = The highest value obtained from Figures 8.1, and 8.1.A as per 7.1.4, or, if the note in 7.1.4 applies, then 7.1.3 requirement must be met.

AF , BF = Coefficients for the Kf curve listed below:

Scoop Tube Setpoint % AF BF 102.5 0.571 1.655 107.0 0.586 1.697 112.0 0.602 1.747 117.0 0.632 1.809 All coefficients apply to Manual Flow Control Mode Rev,. No. 12 Page 11 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 8.0 FIGURES AND TABLES 8.1 FIGURES Figure 8.1. MCPR Operating Limit Versus - for All Fuel Types Figure 8.1.A. MCPR Operating Limit Versus - for Operation above 75% of Rated Thermal Power with Three Steam Lines in Service for All Fuel Types Figure 8.1.B MCPR Operating Limit Versus z for Operation with Turbine Bypass Valves Out of Service Figure 8.2 Kf Factor Figure 8.3.A APLHGR versus Planar Average Exposure GE 12-PIODSB405-16GZ-10T- 150-T-2396.

Figure 8.3.B APLHGR versus Planar Average Exposure GE1 2-P10DSB405-17GZ-10OT--150-T-2395.

Figure 8.3.C APLHGR versus Planar Average Exposure GE12-P1ODSB417-15GZ-10OT-150-T Figure 8.3.D APLHGR versus Planar Average Exposure GEI2-PIODSB412-17GZ-10OT-150-T Figure 8.3.E APLHGR versus Planar Average Exposure GE12-PIODSB407-14G6.0-10OT-150-T Figure 8.3.F APLHGR versus Planar Average Exposure GEI12-PIODSB407-17GZ-10OT-150-T I

Figure 8.4 Stability Option 1D Exclusion Region Figure 8.5 Exposure Dependent LHGR Limit for GE12 fuel.

Figure 8.6.A Cycle 15 Loading Pattern, Upper Left Quadrant, Bundle Design Figure 8.6.B Cycle 15 Loading Pattern, Upper Right Quadrant, Bundle Design Figure 8.6.C Cycle 15 Loading Pattern, Lower Right Quadrant, Bundle Design Figure 8.6.D Cycle 15 Loading Pattern, Lower Left Quadrant, Bundle Design Figure 8.7 Users Guide Rev. No. 12 Page 12 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 8.2 TABLES Table 8.1 NI CPR Operating Limit for Incremental Cycle Core Average Exposure Table 8.1 .A MCPR Operating Limit for Incremental Cycle Core Average Exposure for Operation above 750%o of Rated Thermal Power with Three Steam Lines in Service Table 8.1.B MCPR Operating Limit for Operation with Turbine Bypass Valves Out of Service I Table 8.2 Maximum LHGR 9.0 EXHIBITS NONE Rev,. No. 11 Page 13 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 TABLE 8.1 MCPR Operating Limit For Incremental Cycle Core Average Exposure Cycle 15 Exposure Range ALL Fuel Types BOC to <EOC - 1.0 GWD/ST 1.36 EOC - 1.0 GWD/ST 1.38 to EOC Technical Specification LCO 3.2.2, Minimum Critical Power Ratio (MCPR)

For single loop operation, these limits shall be increased by 0.01.

NOTE: 1. When entering a new Exposure Range, check the current value of T to assure adjustment per Step 7.1.4

2. Applicable for values of K _<440, see Step 7.5.2 Rev. No. 12 Page 14 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 TABLE 8.1.A NICPR Operating Limit for Incremental Cycle Core Average Exposure for Operation above 75% of Rated Thermal Power with Three Steam Lines in Service Cycle 15 Exposure Range ALL Fuel Types BOC to <EOC - 1.0 GWD/ST 1.38 EOC - 1.0 GWD/ST 1.40 to EOC Technical Specification LCO 3.2.2, Minimum Critical Power Ratio (MCPR)

For single loop operation, these limits shall be increased by 0.01.

NOTE: 1. When entering a new Exposure Range, check the current value of T to assure adjustment per Step 7.1.4

2. Applicable for values of K < 44%, see Step 7.5.2 Rev. No. -12 Page 15 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 TABLE 8.2 Maximum LHGR Maximum LHGR Fuel Type Fuel Bundle Design (kW/ft)

ALL GE12 See Figure 8.5 Technical Specification LCO 3.2.3, Linear Heat Generation Rate (LHGR)

Design features of the fuel assemblies in the Cycle 15 core are provided in Reference 3.6 NOTE: Exposure Dependent Limits will be used in the 3D-MONICORE software.

Rev,. No. -12" Page 17 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 FIGURE 8.1 MCPR Operating Limit Versus T For All Fuel Types 1.48

-- BOC to < EOC-1.0 GWD/ST 1.46 - -- EOC-1.0 GWD/ST to EOC - ~ 1.46 0t 1.44 1.42

"-j 1.41 1.4 0=

CL

0. 1.38 r 1.36, 1.36 1.34 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Technical Specification LCO 3.2.2, Minimum Critical Power Ratio (MCPR) I For single loop operation, these limits shall be increased by 0.01.

NOTE: Should the operating limit MCPR obtained from this figure be less than the operating limit MCPR found in 7.1.3 for the applicable RBM Upscale Rod Block trip level setting then 7.1.3 shall apply (Not applicable in Cycle 15).

Rev,. No. 12 Page 18 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 FIGURE 8.1.A MCPR Operating Limit Versus T For Operating Above 75% of Rated Thermal Power with Three Steam Lines in Service For all Fuel Types 1.5

-- BOC to < EOC-1.0 GWD/ST 1.48

- U-- EOC-1.0 GWD/ST to EOC 1.48 1.46 1.44 E 1.43 1.42

0. 1.4 1.38 1.36 0 0.2 0.4 0.6 0.8 T

Technical Specification LCO 3.2.2, Minimum Critical Power Ratio (ICPR)

I For single loop operation, these limits shall be increased by 0.01.

NOTE: Should the operating limit MCPR obtained from this figure be less than the operating I

limit MCPR found in 7.1.3 for the applicable RBM Upscale Rod Block trip level setting then 7.1.3 shall apply (Not applicable in Cycle 15).

Rev,. No. 12 Page 19 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 FIGURE 8.1.B MCPR Operating Limit Versus t for Operation with Turbine Bypass Valves Out of Service 1.50 1.49

  • 1.49 1.48 . ALL CYCLE EXPOSURES W

a.) 1.47 1.46 E

,j 1.45

._ 1.44 4 1.43 C.

0 1.42 1.41

  • 1.41 1.40 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 T

Technical Specification LCO 3.2.2, Minimum Critical Power Ratio (MCPR)

For single loop operation, these limits shall be increased by 0.01.

NOTE:Should the operating limit MCPR obtained from this figure be less than the operating limit MCPR found in 7.1.3 for the applicable RBM Upscale Rod Block trip level setting then 7.1.3 shall apply (Not applicable in Cycle 15).

Rev. No. 12 Page 20 of 34

CORE OPERATING LI'MITS REPORT CYCLE 15 FIGURE 8.2 Kf Factor Cycle 15 Kf Curve for Scoop Tube Stops at 107%

Considers Two Loop and Single Loop Operation, MOC and EOC MCPR Limts 1.15 The conmination of MOC MCPR limit and SLO produces the 1.14 st liniting Kf curve. This set of data detemines the Kf 1.13 rve used in the 3D-MONICORE databank May be 1.12 anged when EOC MCPR limits apply. Choice of Single op Kf values is for ease of SLO. Two loop limits are not 1.11 inificantly different.

SLO 1.10 0ig 1.09 MCPR = 1.09 (TO), 1.10 (SLO)

_MCPR(TLO) = 1.36 (BOC to MOC), 1.38 (MOC to EGC) 1.08 MCPR(SLO) = 1.37 (BOC to MOC), 1.39 (MOC to EOC)

,2 1.07 ference: Kf CURVE UPDATE, dated 10/1698 1.06 curnent No. GE-NE-J1 1-03426-00-01 1.05 1.04 Equation of Cycle 15 K,curve:

= MAX( 1.0, 1.2734 - 0.4397*(% Core Fow/1 00))

1.03 1.02 1.01 1.00 0.99 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 Core Flow, %rated Technical Specification LCO 3.2.2, Minimum Critical Power Ratio (MCPR)

See Section 7.7 NOTE: Kf for Single Loop Operation is slightly greater than for Dual Loop Operation limits.

Therefore, Kf calculated for Single Loop Operation is more conservative and will be applied to Dual Loop Operation as well.

Rev. No. 12 Page 21 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 FIGURE 8.3.A APLHGR versus Planar Average Exposure:

GE12-P1ODSB405-16GZ-100T-150-T-2396 I 12 10 8

6 4

0 2 I

0 0 10 20 30 40 50 60 Planar Average Exposure (GWD/ST)

This curve represents the limiting exposure dependent APLHGR values per Reference 3.17 and 3.18.

Technical Specification LCO 3.2.1, Average Planar Linear Heat Generation Rate (APLHGR)

For single loop operation these APLHGR values shall be multiplied by 0.78.

Rev,. No. 12 Page 22 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 FIGURE 8.3.B APLHGR versus Planar Average Exposure:

GE12-P1ODSB405-17GZ-100T-150-T-2395 I

12 10 8

6 0 4

"(_1 2 I 0

0 10 20 30 40 50 60 Planar Average Exposure (GWD/ST)

This curve represents the limiting exposure dependent APLHGR values per Reference 3.17 and 3.18.

Technical Specification LCO 3.2.1, Average Planar Linear Heat Generation Rate (APLHGR)

For single loop operation these APLHGR values shall be multiplied by 0.78.

Rev'. No. 12 Page 23 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 FIGURE 8.3.C APLHGR versus Planar Average Exposure:

GE12-P1ODSB417-15GZ-100T-150-T I

12 10 8

6 04

< 2 2J I

0 0 10 20 30 40 50 60 Planar Average Exposure (GWD/ST)

This curve represents the limiting exposure dependent APLHGR values per Reference 3.5 and 3.12.

Technical Specification LCO 3.2.1, Average Planar Linear Heat Generation Rate (APLHGR)

Reference:

23A7114 Rev 1 For single loop operation these APLHGR values shall be multiplied by 0.78.

Rev'. No. 12 Page 24 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 FIGURE 8.3.D APLHGR versus Planar Average Exposure: I GE12-P1ODSB412-17GZ-100T-150-T 12 10 8

C,

  • 4 2

I 0

0 10 20 30 40 50 60 Planar Average Exposure (GWD/ST)

This curve represents the limiting exposure dependent APLHGR values per Reference 3.5 and 3.12.

Technical Specification LCO 3.2.1, Average Planar Linear Heat Generation Rate (APLHGR)

Reference:

24A5167 Rev. 0 For single loop operation these APLHGR values shall be multiplied by 0.78.

Rev'. No. 12ý Page 25 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 FIGURE 8.3.E APLHGR versus Planar Average Exposure:

GE12-P1ODSB407-14G6.0-100T-150-T I

12 10 8

n,6 o4 I 2

0 0 10 20 30 40 50 60 Planar Average Exposure (GWD/ST)

This curve represents the limiting exposure dependent APLHGR values per Reference 3.4 and 3.13.

Technical Specification LCO 3.2.1, Average Planar Linear Heat Generation Rate (APLHGR)

For single loop operation these APLHGR values shall be multiplied by 0.78.

Rev,. No. 12 Page 26 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 FIGURE 8.3.F APLHGR versus Planar Average Exposure:

GE12-P10DSB407-17GZ-100T-150-T I 12 10 8

J6 a.4 I

2 0

0 10 20 30 40 50 60 Planar Average Exposure (GWD/ST)

This curve represents the limiting exposure dependent APLHGR values per Reference 3.4 and 3.13.

Technical Specification LCO 3.2.1, Average Planar Linear Heat Generation Rate (APLHGR)

For single loop operation these APLHGR values shall be multiplied by 0.78.

Rev. No. 12ý Page 27 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 FIGURE 8.4 Stability Option 1-D Exclusion Region 100 90 80 Exclusion Reg ion 70 60 0

I.

E 7i a) 50 "I

  • 0 a) 40 J

I 30

/" /

- " I 20

/

10 0

20 25 30 35 40 45 50 55 Rated Core Flow, %

Technical Specification LCO 3.4.1, Recirculation Loops Operating Reference 3.14 Rev. No. 12 Page 28 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 FIGURE 8.5 Exposure Dependent LHGR Limit for GE12 Fuel 16 14 12 10 8

6 0 10 20 30 40 50 60 GWDIST Technical Specification LCO 3.2.3, Linear Heat Generation Rate (LHGR)

This curve represents the limiting exposure dependent LHGR values per Reference 3.11 Design features of the fuel assemblies in the Cycle 15 core are provided in Reference 3.6 NOTE: Exposure Dependent Limits will be used in the 3D-MONICORE software.

Rev. No. 12 Page 29 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 FIGURE 8.5.A Cycle 15 Loading Pattern, Upper Left Quadrant, Bundle Design B B B B B 52 N4b from above the core B B B B B B 50 B B B B B B B B B 48

____ -I. I. 4 4 4 4- 4. I. 4 B B B B B B B B B B 46 B B B B B B B B B B B 44 B B B B B B B B B B B 42 B B B B B B B B B B B 40 4- 4 I 4 4 4 4 + -4 1 4 B B B B B B B B B B B B 38 B B B B B B B B B B B B B 36 B B B B B B B B B B B B B 34 B B B B B B B B B B B B B 32 B B B B B B B B B B B B B 30 B B B B B B B B B B B B B 28 1 3 5 7 9 11 13 15 17 19 21 23 25 B = GE12 Re-,.. No. 12 Page 30 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 FIGURE 8.6.B Cycle 15 Loading Pattern, Upper Right Quadrant, Bundle Design B IB B IB 1B N , 552 from above B B B B B B the core B B B B B B B B B 48 B B B B B B B B B B 46 B B B B B B B BB BB B 44 B B B B B B B B B B B 42 B B B B B B B B B B B 40

+ 4 + 4 + 4 +

B B B B B B B B B B B B 38 B B B B B B B B B B B B B 36 B B B B B B B B B B B B B 34 B B B B B B B B B B B B B 32 B B B B B B B B B B B B B 30 B B B B B B B B B B B B B 28 27 29 31 33 35 37 39 41 43 45 47 49 51 B = GE12 Rev. No. 12 Page 31 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 FIGURE 8.6.C Cycle 15 Loading Pattern, Lower Right Quadrant, Bundle Design B B B B B B B B B B B B B 26 B B B B B B B B B B B B B 24 B B B B B B B B B B B B B 22 B B B B B B B B B B B B B 20 B B B B B B B B B B B B B 18 B B B B B B B B B B B B 16 B B B B B B B B B B B 14 B B B B B B B B B B B 12 B B B B B B B B B B B 10 B B B B B B B B B B 8 B B B B B B B B B 6 B B B B B B N4ý 4 from above B B B B B the core 27 29 31 33 35 37 39 41 43 45 47 49 51 B = GE12 Rev. No. 12 Page 32 of 34

CORE OPERATING LINMITS REPORT CYCLE 15 FIGURE 8.6.D Cycle 15 Loading Pattern, Lower Left Quadrant, Bundle Design B B B B B B B B B B B B B 26 B B B B B B B B B B B B B 24 B B B B B B B B B B B B B 22 B B B B B B B B B B B B B 20 B B B B B B B B B B B B B 18 B B B B B B B B B B B B 16 4 + + I I 1 1 1 T r T B B B B B B B B B B B 14 B B B B B B B B B B B 12 B B B B B B B B B 10 B B B B B B B B B B 8

____ 4 4 4 4 + 4 t I B B B B B B B B B 6

___ 4 + t 4 1 B B B B B B 4 from above B B B B B 2 the core 1 3 5 7 9 11 13 15 17 19 21 23 25 B = GE12 Rev. No. 12 Page 33 of 34

CORE OPERATING LIMITS REPORT CYCLE 15 FIGURE 8.7 USERS GUIDE The COLR defines thermal limits for the various operating conditions expected during the cycle. At the start of the cycle the 3D-Monicore databank contains limits for;

  • Cycle exposure range of BOC to < EOC - 1.0 GWD/ST T - 0
  • Dual recirculation pump operation
  • Four steam line operation, and
  • Operation with Turbine Bypass Valves Out-of-Service I The following is a table that offers a check to assure the correct limits are applied when operating states or conditions change.

Procedure Change in Operating State Change in Limits refere Reference Cycle Exposure = See Table 8.1(8.1.A for 3SL) or Figure EOC - 1.0 GWD/ST 8.1 for T *- 0(8.1.A for 3SL) for change in MCPR. None OLNICPR changes to EOC Kf limit may be changed in recognition values at cycle exposure of 13.447 GWD/ST of higher OLMCPR Scram Time Test Results such that #

  • 0 Use new T and see Figure 8.1 or 8.1.A Option B limits for OLMCPR for 3SL. Kf limit may be changed in RAP-7.4.1 must be interpolated with Option recognition of higher OLMCPR.

A limits Single Loop Operation Increase NICPR Limits by 0.01, or The SLMCPR increases by- 0.01 change acceptance criterion in ST-5E and therefore OLMCPR limits to 0.99. Kf does not change. RAP-7.4.2, increase by 0.01. NL-APLHGR is Verify that 3D-Monicore has ST-5E, reduced by a multiplier in SLO. recognized the idle recirculation loop RAP-7.3.25 and is applying the GE12 SLO MAPLHGR multiplier of 0.78.

Three Steam Line Operation Increase OLMCPR according to Table None (3SL) 8.1.A or Figure 8.1.A(T

  • 0). K limit OLMCPR values increase by 0.02 may be changed in recognition of when operating on 3SL higher OLMCPR.

Operation with Turbine Bypass Increase OLMCPR according to Table Valves Out-of-Service 8.1.B or Figure 8.1.B(T

  • 0). Kf limit None OLNMCPR values increase, no may be changed in recognition of LHGR change required higher OLTMCPR.

Rev,. No. 12 Page 34 of 34