HL-6232, Cycle 21 Core Operating Limits Report

Cycle 21 Core Operating Limits Report

ML021200219
Person / Time
Site:	Hatch
Issue date:	04/25/2002
From:	Sumner H Southern Nuclear Operating Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
HL-6232
Download: ML021200219 (35)

Text

Lewis Sumner Southern Nuclear Vice President Operating Company, Inc.

Hatch Project Support 40 Inverness Parkway Post Office Box 1295 Birmingham, Alabama 35201 Tel 205.992.7279 Fax 205,992.0341 SOUTHERN COMPANY Energy to Serve Your Worid SM April 25, 2002 Docket No. 50-321 HL-6232 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555 Edwin I. Hatch Nuclear Plant - Unit 1 Unit 1 Cycle 21 Core Operating Limits Report (COLR)

Ladies and Gentlemen:

In accordance with Technical Specification 5.6.5, Southern Nuclear Operating Company hereby submits the Edwin I. Hatch Nuclear Plant Unit I Cycle 21 Core Operating Limits Report, Revision 0.

Should you have any questions in this regard, please contact this office.

Respectfully submitted, 6964ý s~on" H. L. Sumner, Jr.

IFL/eb

Enclosure:

Unit 1 Cycle 21 Core Operating Limits Report, Revision 0 cc: Southern Nuclear Operating Company Mr. P. H. Wells, Nuclear Plant General Manager SNC Document Management (R-Type A02.001)

U. S. Nuclear Regulatory Commission, Washington, D. C.

Mr. L. N. Olshan, Project Manager - Hatch U. S. Nuclear Regulatory Commission, Region II Mr. L. A. Reyes, Regional Administrator Mr. J. T. Munday, Senior Resident Inspector - Hatch

SOUTHERN NUCLEAR OPERATING COMPANY EDWIN I. HATCH NUCLEAR PLANT Unit 1 Cycle 21 CORE OPERATING LIMITS REPORT Revision 0 Southern Nuclear Operating Company Post Office Box 1295 Birmingham, Alabama 35201

Edwin I. Hatch Nuclear Plant Unit 1 Cycle 21 Core Operating Limits Report TABLE OF CONTENTS Section Title Pae 1.0 Introduction 1

2.0 APLHGR Limits 1

3.0 MCPR Operating Limits 14 4.0 PBDA Amplitude Setpoint 28 5.0 References 29 Revision 0

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report TABLES Title APLHGR Operating Flexibility Options MCPR Operating Flexibility Options for Cycle Exposures BOC to EOC-2100 MCPR Operating Flexibility Options for Cycle Exposures EOC-2100 to EEOC Revision 0 Table No.

2-1 3-1A 3-1 B Paae 3

16 17 ii

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report FIGURES Figure No.

Title Page 2-1 Flow-Dependent APLHGR Multiplier 4

(MAPFACF) versus Core Flow 2-2A Power-Dependent APLHGR Multiplier 5

(MAPFACp) versus Core Power (Bypass Valves Operable and Pressure Regulator Operable) 2-2B Power-Dependent APLHGR Multiplier 6

(MAPFACp) versus Core Power (Bypass Valves Inoperable and Pressure Regulator Operable) 2-2C Power-Dependent APLHGR Multiplier 7

(MAPFACp) versus Core Power (Pressure Regulator Inoperable) 2-3 APLHGR Limit versus Average Planar Exposure 8

(Bundle Type: GE14-P1ODNAB399-16GZ-lOOT-150 T-2517) 2-4 APLHGR Limit versus Average Planar Exposure 9

(Bundle Type: GE13-P9HTB378-6G5. O/6G4.O/1G2.0 lOOT-146-T) 2-5 APLHGR Limit versus Average Planar Exposure 10 (Bundle Type: GE13-P9HTB378-6G5.0/6G4.0-100T 146-T) 2-6 APLHGR Limit versus Average Planar Exposure 11 (Bundle Type: GE14-PlODNAB398-15GZ-lOOT-150 T-2518) 2-7 APLHGR Limit versus Average Planar Exposure 12 (Bundle Type: GE13-P9DTB378-6G5.0/6G4.0-100T 146-T-241 1) 2-8 APLHGR Limit versus Average Planar Exposure 13 (Bundle Type: GE13-P9DTB378-6G5.0/6G4.0/1G2.0 10OT-146-T)

Revision 0 iii

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report FIGURES (Continued)

Figure No.

Title Paae 3-1A Power-Dependent MCPR Limit (MCPRp) versus 18 Core Power from 25% to 28% of Rated Core Power (Bypass Valves Operable) 3-1 B Power-Dependent MCPR Limit (MCPRp) versus 19 Core Power from 25% to 28% of Rated Core Power (Bypass Valves Inoperable) 3-2 Flow-Dependent MCPR Limit (MCPRF) versus 20 Core Flow 3-3A Power-Dependent MCPR Multiplier (Kp) versus 21 Core Power (Pressure Regulator Operable) 3-3B Power-Dependent MCPR Multiplier (Kp) versus 22 Core Power (Pressure Regulator Inoperable) 3-4A MCPR Limits versus Average Scram Time 23 (BOC to EOC-2 100 with EOC-RPT System Operable and Bypass Valves Operable) 3-4B MCPR Limits versus Average Scram Time 24 (BOC to EOC-2100 with EOC-RPT System Inoperable and Bypass Valves Operable) 3-4C MCPR Limits versus Average Scram Time 25 (BOC to EEOC with EOC-RPT System Operable and Bypass Valves Inoperable) 3-4D MCPR Limits versus Average Scram Time 26 (EOC-2100 to EEOC with EOC-RPT System Operable and Bypass Valves Operable) 3-4E MCPR Limits versus Average Scram Time 27 (EOC-2 100 to EEOC with EOC-RPT System Inoperable and Bypass Valves Operable)

Revision 0 iv

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report

1.0 INTRODUCTION

The Core Operating Limits Report (COLR) for Plant Hatch Unit 1 Cycle 21 is prepared in accordance with the requirements of Technical Specification 5.6.5.

The core operating limits presented herein were developed using NRC-approved methods (Reference 1). Results from the reload analyses for the fuel in Unit 1 Cycle 21 are documented in References 2, 3, and 4.

The following core operating limits are included in this report:

a. Average Planar Linear Heat Generation Rate (APLHGR) - Technical Specification 3.2.1.

b. Minimum Critical Power Ratio (MCPR) - Technical Specification 3.2.2.

c. Maximum allowable scram setpoints for the Period Based Detection Algorithm (PBDA) in the Oscillation Power Range Monitor (OPRM) system.

From a fuel thermal limits perspective, Unit 1 can be operated with only one of the following two systems inoperable at a time:

"* End-of-cycle recirculation pump trip (EOC-RPT)

"* Turbine bypass valves 2.0 APLHGR LIMITS (Technical Specification 3.2.1)

The APLHGR limit for each fuel assembly is the applicable rated-power, rated flow APLHGR limit taken from Figures 2-3 through 2-8, multiplied by the smaller of either:

a. The flow-dependent multiplier, MAPFACF, from Figure 2-1, or

b. The power-dependent multiplier, MAPFACp, as determined by Table 2-1.

Since every assembly in the core contains more than one enriched lattice, GESTAR-II (Reference 1) requires that the appropriate APLHGR limit from Figures 2-3 through 2-8 be applied to every axial location in the fuel assembly, when APLHGR values are hand-calculated. The limits shown in those figures are the values for the most limiting enriched lattice in each fuel bundle as a function of average planar exposure.

Revision 0 1

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report When APLHGR values are determined by the process computer, the lattice type dependent APLHGR limits are used. Under these conditions, some axial locations may have APLHGR values exceeding the values shown in the figures.

Revision 0 2

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report TABLE 2-1 APLHGR Operating Flexibility Options Revision 0 3

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 70 Core Flow (% of Rated)

MAPFACF = Minimum [1.0, (A+B*F), MAPMULT]

Maximum Core Flow

(% of Rated)

A B

1107.0 0.4574 0.006758 MAPMULT = 1.0 for F > 61.0 0.86 for F < 61.0 F = Percent of Rated Core Flow FIGURE 2-1 Flow-Dependent APLHGR Multiplier (MAPFACF) versus Core Flow Revision 0 1.0 0

a.

0.9 M 0.86

." 0.8 "X 0.7 I

0.

0.6

_o 0.5 U

0.4 30 110 4

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 1.1 TWO LOOP OPERATION (TLO) 60% CORE/FLOW (TLO ndSLO) 0.7 GE 143SLO C

I CL a)

> 60%CORE FLOW (TLO andSLO)

OA 1

0.4 25 2830 35 40 45 50 55 60 65 70 75 80 85 90 95 100 Core Power (%of Rated)

MAPFACP = A - B (Po'P)

Operating Conditions Values of Variables P

F FuelType SLOITLO A

B P0 25 < P < 28 F < 60 GE13/14 SLO/TLO 0.603 0

28 25:5 P < 28 F>60 GE13/14 SLO/TLO 0.560 0

28 28:< P < 61.72 All GE13/14 SLO/TLO 1.00 0.005224 100 61.72 < P < 71.28 All GE13 SLO/TLO 1.00 0.005224 100 61.72 < P < 71.28 All GE14 TLO 1.00 0.005224 100 71.28<- P All GE13/14 TLO 1.00 0.005224 100 71.28 < P All GE13 SLO 0.85 0.000 100 61.72 - P All GE14 SLO 0.80 0.000 100 P = Percent of Rated Core Power F = Percent of Rated Core Flow FIGURE 2-2A Power-Dependent APLHGR Multiplier (MAPFACp) versus Core Power (Bypass Valves Operable and Pressure Regulator Operable)

Revision 0 5

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 1.1 1.0

,L IL S0.9

= 0.8 IL0.

.-j 0.6

0.

0.7 M

0 in

• . 0.6

a.

o 0.5 I.

0A 25 28 30 35 40 45 50 55 60 65 70 75 80 85 90 95 1D0 Core Power (%of Rated)

MAPFACP = A - B (Po'P)

Operating Conditions Values of Variables P

F Fuel Type SLOITLO A

B P0 25!- P < 28 F5 <60 GE13/14 SLO/TLO 0.588 0.01167 28 25:< P < 28 F > 60 GE13/14 SLOITLO 0.450 0.00967 28 28:< P < 61.72 All GE13/14 SLO/TLO 1.00 0.005224 100 61.72:5 P < 71.28 All GE13 SLO/TLO 1.00 0.005224 100 61.72:< P < 71.28 All GE14 TLO 1.00 0.005224 100 71.28*< P All GE13/14 TLO 1.00 0.005224 100 71.28*5 P All GE13 SLO 0.85 0.000 100 61.72:< P All GE14 SLO 0.80 0.000 100 P = Percent of Rated Core Power F = Percent of Rated Core Flow FIGURE 2-2B Power-Dependent APLHGR Multiplier (MAPFACp) versus Core Power (Bypass Valves Inoperable and Pressure Regulator Operable)

Revision 0 6

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 1.1 S1.0 0.9 0.8 S0.7

_j C

S0.6 C

0.5 CL 0.4 0.3 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 U00 Core Power (%of Rated)

MAPFACP = A - B (Po-P)

P 25 < P < 40 40 < P < 100 Operati Conditions F

Fuel Type All GE13/14 All G E13/14 SLO/TLO SLO/ITLO SLOIfLO ITv Values of Variables A

B P0 0.49 0.00580 40 1.00 0.0085 100 P = Percent of Rated Core Power F = Percent of Rated Core Flow FIGURE 2-2C Power-Dependent APLHGR Multiplier (MAPFACp) versus Core Power (Pressure Regulator Inoperable)

Revision 0 I

7 I

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report Average Planar Exposure 0.00 0.20 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 11.00 12.00 13.00 14.00 15.00 17.00 20.00 25.00 30.00 35.00 40.00 45.00 50.00 55.00 57.45 12.0 11.0 10.0 9.0 8.0 7.0 APLHGR Limit 9.59 9.66 9.78 9.94 10.06 10.19 10.28 10.38 10.48 10.58 10.68 10.78 10.89 10.91 10.93 10.95 10.97 10.94 10.80 10.44 10.05 9.59 9.07 8.54 7.99 6.16 4.92 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 Average Planar Exposure (GWd/ST)

NOTE: THIS IS THE APLHGR LIMIT FOR THE MOST LIMITING LATTICE AS A FUNCTION OF AVERAGE PLANAR EXPOSURE.

FIGURE 2-3 APLHGR Limit versus Average Planar Exposure (Bundle Type: GE14-P1ODNAB399-16GZ-100T-150-T-2517) 8 Revision 0 E

C,J

,CL 6.0 5.0 4.0 UNACCEPTABLE OPERATION ACCEPTABLE OPERATION 65.0

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report Average Planar Exposure 0.00 0.20 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12.50 15.00 17.50 20.00 25.00 30.00 35.00 40.00 45.00 50.00 55.00 57.53 APLHGR Limit 10.51 10.57 10.73 10.97 11.24 11.48 11.73 11.92 12.06 12.21 12.36 12.49 12.60 12.42 12.05 11.69 10.97 10.27 9.60 8.93 8.28 7.62 6.94 6.59 7.0 6.0 5.0 4.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 Average Planar Exposure (GWd/ST)

NOTE: THIS IS THE APLHGR LIMIT FOR THE MOST LIMITING LATTICE AS A FUNCTION OF AVERAGE PLANAR EXPOSURE.

FIGURE 2-4 APLHGR Limit versus Average Planar Exposure (Bundle Type: GE13-P9HTB378-6G5.016G4.01 G2.0-100T-146-T) 9 14.0 13.0 "12.0 11.0 SU.0 E

9.0

-J 8.0 0.

UNACCEPTABLE OPERATION ACCEPTABLE

,,OPERATION Revision 0

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report Average Planar Exposure 0.00 0.20 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12.50 15.00 17.50 20.00 25.00 30.00 35.00 40.00 45.00 50.00 55.00 57.54 APLHGR Limit 10.64 10.70 10.85 11.06 11.30 11.51 11.75 11.92 12.06 12.21 12.35 12.49 12.61 12.42 12.06 11.69 10.97 10.28 9.60 8.94 8.28 7.62 6.95 6,59 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 Average Planar Exposure (GWd/ST)

Revision 0 NOTE: THIS IS THE APLHGR LIMIT FOR THE MOST LIMITING LATI1CE AS A FUNCTION OF AVERAGE PLANAR EXPOSURE.

FIGURE 2-5 APLHGR Limit versus Average Planar Exposure (Bundle Type: GE13-P9HTB378-6G5.016G4.0-10OT-146-7) 10 E

,-I a.

-I 14.0 13.0 12.0 11.0 10.0 9.0 8.0 7.0 6.0 5.0 4.0 UNACCEPTABLE OPERATION ACCEPTABLE O P ERATIO N

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 12.0 11.0 10.0 Average Planar Exposure 0.00 0.20 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 11.00 12.00 13.00 14.00 15.00 17.00 20.00 25.00 30.00 35.00 40.00 45.00 50.00 55.00 57.47 FIGURE 2-6 APLHGR Limit versus Average Planar Exposure (Bundle Type: GE14-P1ODNAB398-15GZ-10OT-150-T-2518)

Revision 0 APLHGR Limit 9.72 9.79 9.89 10.01 10.13 10.22 10.31 10.41 10.50 10.60 10.70 10.80 10.92 10.94 10.96 10.98 10.99 10.96 10.81 10.44 10.05 9.59 9.07 8.54 7.99 6.17 4.92 E

3 0..

C.

9.0 8.0 ACCEPTABLE OPERATION 7.0 6.0 5.0 4.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 Average Planar Exposure (GWd/ST)

NOTE: THIS IS THE APLHGR LIMIT FOR THE MOST LIMITING LATTICE AS A FUNCTION OF AVERAGE PLANAR EXPOSURE.

11

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report Average Planar Exposure 0.00 0.20 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12.50 15.00 17.50 20.00 25.00 30.00 35.00 40.00 45.00 50.00 55.00 57.54 14.0 13.0 APLHGR Limit 10.83 10.89 11.04 11.25 11.48 11.73 11.96 12.14 12.28 12.42 12.57 12.71 12.61 12.25 11.91 11.56 10.88 10.22 9.57 8.92 8.28 7.62 6.94 6.58 7.0 6.0 5.0 4.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 Average Planar Exposure (GWd/ST)

NOTE: THIS IS THE APLHGR LIMIT FOR THE MOST LIMITING LATTICE AS A FUNCTION OF AVERAGE PLANAR EXPOSURE.

FIGURE 2-7 APLHGR Limit versus Average Planar Exposure (Bundle Type: GE13-P9DTB378-6G5.016G4.0-100T-146-T-2411) 12 Revision 0 UNACCEPTABL OPPERATION

/~~

--A\\\\\\

11.0 E

M 9.0 8.0

a.

14

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report Average Planar Exposure 0.00 0.20 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12.50 15.00 17.50 20.00 25.00 30.00 35.00 40.00 45.00 50.00 55.00 57.53 APLHGR Limit 10.64 10.71 10.88 11.12 11.39 11.67 11.93 12.14 12.28 12.42 12.58 12.71 12.60 12.25 11.90 11.56 10.88 10.21 9.56 8.92 8.27 7.62 6.93 6.58 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 Average Planar Exposure (GWd/ST)

NOTE: THIS IS THE APLHGR LIMIT FOR THE MOST LIMITING LATTICE AS A FUNCTION OF AVERAGE PLANAR EXPOSURE.

FIGURE 2-8 ALPHGR Limit versus Average Planar Exposure (Bundle Type: GE13-P9DTB378-6G5.016G4.0/1G2.0-100T-146-T) 13 Revision 0 14.0 13.0 12.0 11.0 S10.0 E

3 9.0 C,

8.0 I.

7.0 6.0 5.0 4.0

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 3.0 MCPR OPERATING LIMITS (Technical Specification 3.2.2)

The MCPR operating limit (OLMCPR) for each fuel type is a function of core power, core flow, average scram time, number of operating recirculation loops, operability of the EOC-RPT system, operability of the turbine bypass valve system, and whether both pressure regulators are operable.

With both recirculation pumps in operation (TLO), the OLMCPR for each fuel type is determined as follows:

a. For 25% _ power < 28%, the power-dependent MCPR limit, MCPRp, as determined by Table 3-1A or 3-1 B.

b. For power > 28%, the OLMCPR is the greater of either:

1) The flow-dependent MCPR limit, MCPRF, from Figure 3-2, or

2) The product of the power-dependent multiplier, Kp, and the rated-power, rated-flow MCPR limit as determined by Table 3-1A or 3-1 B.

With only one recirculation pump in operation (SLO), the OLMCPR for each fuel type is the TLO OLMCPR plus 0.02.

These limits apply to all modes of operation with intermittent feedwater temperature reduction, as well as operation with normal feedwater temperatures.

In figures 3-4A through 3-4E, Option A scram time MCPR limits correspond to T =

1.0, where 'r is determined from scram time measurements performed in accordance with Technical Specifications Surveillance Requirements 3.1.4.1 and 3.1.4.2. Option B values correspond to r = 0.0. For scram times between Option A and Option B, the MCPR limit for each fuel corresponds to 'r. If - has not been determined, Option A limits are to be used. Refer to Table 3-1A or 3-1B to determine the applicable set of fuel-type dependent curves.

Revision 0 14

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report The average scram time of the control rods, t, is defined as:

Tave - TB

,=

0, or

, whichever is greater.

TA - TB where:

rA 1.08 sec (Technical Specification 3.1.4, Table 3.1.4-1, scram time limit to notch 36).

1/2 T1B

"-g+

1.65 * (T

• I=1i where:

px

= 0.822 sec (mean scram time used in the transient analysis).

= 0.018 sec (standard deviation of g).

nE~$

i=l Tave i=1 where:

n

= number of surveillance tests performed to date in the cycle.

N1

= number of active control rods measured in the ith surveillance test.

Ti

= average scram time to notch 36 of all rods in the ith surveillance test.

N1

= total number of active rods measured in Technical Specifications Surveillance Requirement 3.1.4.1.

Revision 0 15

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report TABLE 3-1A MCPR Operating Flexibility Options for Cycle Exposures BOC to EOC-21 00 Fiaure 3-1A Fiaure 3-3A Figure 3-4A Operable Operable Inoperable Figure 3-1A Figure 3-3B Figure 3-4A Inoperable Operable Operable Figure 3-1A Figure 3-3A Figure 3-4B Inoperable Operable Inoperable Figure 3-1A Figure 3-3B Figure 3-4B Operable Inoperable Operable Figure 3-1B Figure 3-3A Figure 3-4C Operable Inoperable Inoperable Figure 3-1B Figure 3-3B Figure 3-4C BOC = Beginning of Cycle EOC = End of Cycle EEOC = Extended End of Cycle Revision 0 Ope rable Onerable Operable 16

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report TABLE 3-1 B MCPR Operating Flexibility Options for Cycle Exposures EOC-2100 to EEOC Figure 3-1A Figure 3-3A Figure 3-4D Operable Operable Inoperable Figure 3-1A Figure 3-3B Figure 3-4D Inoperable Operable Operable Figure 3-1A Figure 3-3A Figure 3-4E Inoperable Operable Inoperable Figure 3-lA Figure 3-3B Figure 3-4E Operable Inoperable Operable Figure 3-1 B Figure 3-3A Figure 3-40 Operable Inoperable Inoperable Figure 3-1B Figure 3-3B Figure 3-4C BOC = Beginning of Cycle EOC = End of Cycle EEOC = Extended End of Cycle Revision 0 Ope rable Operable Operable 17

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 25 26 27 Core Power (% of Rated)

MCPRp = A + B (28-P)

F I

A B

< 60%

2.15

0.

>60%

2.5

0. 030 P = Percent of Rated Core Thermal Power F = Percent of Rated Core Flow FIGURE 3-1A Power-Dependent MCPR Limit (MCPRp) versus Core Power from 25% to 28% of Rated Core Power (Bypass Valves Operable)

Revision 0 2.8

a.

S2.6 0

E cc CL S2.2 0

IL 2.0

>60%. Flow.

60 Flo

-1

28 18

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 3.8 3.6 I

I 3.4

0.

0 S32

-j S3.0 C) 5 2.8 CL a

2.6 0 0.

2.4 99 25 26 27 28 Core Power (%of Rated)

MCPRp = A + B (28-P)

F

<60%

> 60%

A 2.40 3.32 B

0.070 0.1167 P = Percent of Rated Core Thermal Power F = Percent of Rated Core Flow FIGURE 3-1 B Power-Dependent MCPR Limit (MCPRp) versus Core Power From 25% to 28% of Rated Core Power (Bypass Valves Inoperable)

Revision 0 19

-- I I

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 40 50 60 70 Core Flow (% of Rated) 80 90 MCPRF = Maximum [1.20, (A

• F + B)]

Maximum Core Flow

(% of Rated)

A B

107.0

-0.00586 1.697 F = Percent of Rated Core Flow FIGURE 3-2 Flow-Dependent MCPR Limit (MCPRF) versus Core Flow Revision 0 1.6 1.5

c.

E 1.4 O

13 1.3 C.)

C 12 1.1 30 1

4 4

-

+

110 SMaximum Flow 107%

20

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 1.8 1-1.7 1.6 1.5 0

1.50__

28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96 U00 Core Power (% of Rated)

Kp = A + B*(Po-P)

P A

B Po 28:< P < 45 1.28 0.01340 45 45:< P < 60 1.15 0.00867 60 605 <P 1.00 0.00375 100 P = Percent of Rated Core Power FIGURE 3-3A Power-Dependent MCPR Multiplier (Kp) versus Core Power (Pressure Regulator Operable)

Revision 0 21

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 1.9 1.8 d

1.7 1.6 1

1.5 1A

.*1.4 1.3 o

a. S12 0 CL 1.1 1.0 28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96 10 Core Power (%of Rated)

Kp = A + B*(Po-P)

P A

B Po 285 P < 100 1.00 0.010 100 P = Percent of Rated Core Power FIGURE 3-3B Power-Dependent MCPR Multiplier (Kp) versus Core Power (Pressure Regulator Inoperable)

Revision 0 22

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 1.40 1.38 1.36 1.34 1.32 1.30 1.28 1.26 0.0 0.1 0.2 0.3 OA 0.5 0.6 0.7 0.8 0.9 1.0 Tau Tau GE14 GE13 1.0 1.37 1.33 0.0 1.34 1.28 FIGURE 3-4A MCPR Limits versus Average Scram Time (BOC to EOC-2100 with EOC-RPT System Operable and Bypass Valves Operable)

Revision 0

.E a

U.

23

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 0.1 02 0.3 04 0.5 0.6 0.7 0.8 0.9 1.0 Tau

'4' GE14 1.49 1.38 GE13 1.37 1.32 FIGURE 3-4B MCPR Limits versus Average Scram Time (BOC to EOC-2100 with EOC-RPT System Inoperable and Bypass Valves Operable)

Revision 0 1.50 1.48 1.46 1.44 9L 1.42 1.40 1.38 1.36 1.34 1.32 1.30 0.0 Tau 1.0 0.0 24

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 0.0 0.1 02 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Tau Tau 1.0 0.0 GE14 1.46 1.43 21 GE13 1.37 1.34 I FIGURE 3-4C MCPR Limits versus Average Scram Time (BOC to EEOC with EOC-RPT System Operable and Bypass Valves Inoperable)

Revision 0 1.48 1.46 1.44 1A2 1.40 1.38 E

1.36 1.34 1.32 I

25

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 0.0 0.1 02 0.3 04 0.5 0.6 0.7 0.8 0.9 1.0 Tau Tau 1.0 0.0 4:

GE14 1.42 1.39 GE13 1.33 1.30 I FIGURE 3-4D MCPR Limits versus Average Scram Time (EOC-2100 to EEOC with EOC-RPT System Operable and Bypass Valves Operable)

Revision 0 1.44 1.42 1.40 1.38 1.36 1.34

_E a.

1.32 1.30 128 I

26

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 1.64 1.62 1.60 1.58 1.56 1.54 1.52 1.50 1.48 1.46 1.44 1.42 1A0 1.38 1.36 1.34 1.32 0.3 04 0.5 Tau 0.6 0.7 0.8 0.9 1.0 Tau GE14 GE13 1.0 1.62 1.42 0.0 1.45 1.34 FIGURE 3-4E MCPR Limits versus Average Scram Time (EOC-2100 to EEOC with EOC-RPT System Inoperable and Bypass Valves Operable)

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,.J 0.

0.1 0.2 27 GE1 GE13 0.0

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report 4.0 PBDA AMPLITUDE SETPOINT The amplitude trip setpoint in the Period Based Detection Algorithm in the OPRM system shall not exceed the values reported in the table below. This applies to instruments 1C51 K615 A, B, C, and D. These are the nominal trip setpoint values, not the allowable values. Projected Figure of Merit (FOM) value(s) throughout the cycle will be supplied by the Hatch Core Analysis Group. The values in this table are based on GE13 fuel, since it has lower OLMCPRs than the GE14 fuel.

FOM FOM 1.28* OLMCPR 1.30* OLMCPR OLMCPR

< 1.30

< 1.34

>1.34 0.0 92.1 1.11 1.12 1.13 92.1 96.9 1.10 1.10 1.11 96.9 102.4 1.08 1.09 1.10 102.4 108.0 1.07 1.08 1.09 Revision 0 28

Plant Hatch Unit 1 Cycle 21 Core Operating Limits Report

5.0 REFERENCES

1. "General Electric Standard Application for Reactor Fuel," NEDE-2401 1-P-A 14, June 2000, and the US Supplement, NEDE-2401 1-P-A-14-US, June 2000.

2. "Supplemental Reload Licensing Report for Edwin I. Hatch Nuclear Power Plant Unit 1, Reload 20 Cycle 21," Global Nuclear Fuel document 0000-0002 7058-SRLR, Revision 0, March 2002.

3. Letter CAH-NF-2370, "Hatch-1 Cycle 21 Pressure Regulator Out-of-Service ARTS Limits," E. B. Gibson to K. S. Folk, April 8, 2002.

4. Letter CAH-NF-2371, "GE14 Low Power ARTS Below PBYP With Bypass Valves Inoperable," W. R. Mertz to K. S. Folk, April 8, 2002.

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