NL-03-0757, Cycle 18 Core Operating Limits Report (COLR)

Cycle 18 Core Operating Limits Report (COLR)

ML030990262
Person / Time
Site:	Hatch
Issue date:	04/07/2003
From:	Sumner H Southern Nuclear Operating Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NL-03-0757
Download: ML030990262 (36)

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 SOUTHERNHN.R April 7, 2003 COMPANY EnergytoServeourWorld' Docket No.: 50-366 NL-03-0757 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 Edwin I. Hatch Nuclear Plant - Unit 2 Unit 2 Cycle 18 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 2 Cycle 18 Core Operating Limits Report, Revision 0.

This letter contains no NRC commitments. If you have any questions, please advise.

Sincerely, 69t H. L. Sumner, Jr.

HLS/IL/dj

Enclosure:

Unit 2 Cycle 18 Core Operating Limits Report, Revision 0 cc: Southern Nuclear Operating Company Mr. J. D. Woodard, Executive Vice President Mr. P. H. Wells, General Manager - Plant Hatch Document Services RTYPE: CHA02.004 U. S. Nuclear Regulatory Commission Mr. L. A. Reyes, Regional Administrator Mr. S. D. Bloom, NRR Project Manager - Hatch Mr. N. P. Garrett, Acting Senior Resident Inspector - Hatch

/1o

Enclosure Edwin I. Hatch Nuclear Plant Unit 2 Cycle 18 Core Operating Limits Report (COLR)

SOUTHERN NUCLEAR OPERATING COMPANY EDWIN I. HATCH NUCLEAR PLANT Unit 2 Cycle 18 CORE OPERATING LIMITS REPORT Revision 0 Southern Nuclear Operating Company Post Office Box 1295 Birmingham, Alabama 35201

Edwin I. Hatch Nuclear Plant Unit 2 Cycle 18 Core Operating Limits Report TABLE OF CONTENTS Section Title Paqe 1.0 Introduction 1 2.0 APLHGR Limits 2 3.0 MCPR Operating Limits 15 4.0 PBDA Amplitude Setpoint 28 5.0 References 29 i Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report TABLES Table No. Title Page 2-1 APLHGR Operating Flexibility Options 3 3-1 MCPR Operating Flexibility Options 17 ii Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report FIGURES Figure No. Title Page 2-1 Flow-Dependent APLHGR Multiplier (MAPFACF) versus Core Flow 4 2-2A Power-Dependent APLHGR Multiplier (MAPFACp) versus Core Power 5 (All Equipment In Service) 2-2B Power-Dependent APLHGR Multiplier (MAPFACp) versus Core Power 6 (Turbine Bypass Valves Inoperable) 2-2C Power-Dependent APLHGR Multiplier (MAPFACp) versus Core Power 7 (Pressure Regulator Inoperable) 2-2D Power-Dependent APLHGR Multiplier (MAPFACp) versus Core Power 8 (High Pressure Feedwater Heater(s) Out of Service) 2-3 APLHGR Limit versus Average Planar Exposure 9 (GE13-P9DTB378-6G5.0/6G4.0/1 G2.0-lOOT-146-T) 2-4 APLHGR Limit versus Average Planar Exposure 10 (GE13-P9DTB378-6G5.0/6G4.0-IOOT-146-T-2398) 2-5 APLHGR Limit versus Average Planar Exposure 11 (GE13-P9DTB378-6G5.0/6G4.0/1G2.0-10OT-146-T-2402) 2-6 APLHGR Limit versus Average Planar Exposure 12 (GE14-PlODNAB398-4G7.0/10G6.0-10OT-150-T-2615) 2-7 APLHGR Limit versus Average Planar Exposure 13 (GE14-PlODNAB398-4G7.0/11G6.0-10OT-150-T-2616) 2-8 APLHGR Limit versus Average Planar Exposure 14 (GE14-PIODNAB398-4G7.0/11G6.0/1G2.0-10OT-150-T-2617) iii Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report FIGURES (Continued)

Figure No. Title Page 3-1A Power-Dependent MCPR Limit (MCPRp) versus Core Power 18 from 24% to 28% of Rated Core Power (Turbine Bypass Valves Operable) 3-1 B Power-Dependent MCPR Limit (MCPRp) versus Core Power 19 from 24% to 28% of Rated Core Power (Turbine Bypass Valves Inoperable) 3-2 Flow-Dependent MCPR Limit (MCPRF) versus Core Flow 20 3-3A Power-Dependent MCPR Multiplier (Kp) versus Core Power 21 (Pressure Regulator Operable) 3-3B Power-Dependent MCPR Multiplier (Kp) versus Core Power 22 (Pressure Regulator Inoperable) 3-4A MCPR Limits versus Average Scram Time 23 (BOC to EOR-2000 MWd/st with EOC-RPT In Service and Turbine Bypass Valves Operable) 3-4B MCPR Limits versus Average Scram Time 24 (BOC to EOR-2000 MWd/st with EOC-RPT Out of Service and Turbine Bypass Valves Operable) 3-4C MCPR Limits versus Average Scram Time 25 (BOC to EEOC with EOC-RPT In Service and Turbine Bypass Valves Inoperable) 3-4D MCPR Limits versus Average Scram Time 26 (EOR-2000 MWdlst to EEOC with EOC-RPT In Service and Turbine Bypass Valves Operable) 3-4E MCPR Limits versus Average Scram Time 27 (EOR-2000 MWd/st to EEOC with EOC-RPT Out of Service and Turbine Bypass Valves Operable) iv Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report

1.0 INTRODUCTION

The Core Operating Limits Report (COLR) for Plant Hatch Unit 2 Cycle 18 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 (References 1 and 2). Results from the reload analyses for the fuel in Unit 2 Cycle 18 are documented in References 2 and 3.

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 From a fuel thermal limits perspective, the following limitations are placed on Unit 2 operation with equipment out of service.

Equipment I Condition Limitation EOC-RPT Out of Service AND Not analyzed Turbine Bypass Valves Inoperable Simultaneously High Pressure Feedwater Heater(s) Out of Service AND Not analyzed Pressure Regulator Inoperable Simultaneously Single-Loop Operation (SLO) * < 2000 MWt

• s 56% Core Flow Pressure Regulator Inoperable Option B Scram Speeds Met (in place)

Also included in this report are the maximum allowable scram setpoints for the Period Based Detection Algorithm (PBDA) in the Oscillation Power Range Monitor (OPRM).

1 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report 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-I1 (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.

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.

2 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report TABLE 2-1 APLHGR Operating Flexibility Options High Cycle Turbine Pressure MAPFACp MAPFACp Average Bypass Pressure Feedwater < 28% 2 28%

Exposure Valves Regulator Heaters Power Power BOC to Operable Operable In Service Figure 2-2A Figure 2-2A EEO C__ _ _ _ __ _ _ ___ _ _ _

BOC to Inoperable Operable In Service Figure 2-21 Figure 2-2B EEO C__ _ _ _ __ _ _ ___ _ _ _

BOC Operable to or Inoperable In Service Figure 2-2C Figure 2-2C EEOC Inoperable BO0C to Operable Operable Out of Figure 2-2A Figure 2-2D EEOC Service BOC to Inoperable Operable Out of Figure 2-21B Figure 2-21D EEO C __ _ _ _ _ _ _ _ _ _ _ Service _ _ _ _ _ __ _ _ _ _ _ _

BOC = Beginning of Cycle EEOC = Extended End of Cycle 3 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report to C,

IL

0. 09 U-

- I

-I E= 0706 L.

~~~~-i ----- ____________-- MAX__FLOW__=

"C 0.

ci _____ ____ ___

____ ___ __ ___ ___ _ ___ ____ ___ _ ___ ___ _ ___ _ ___ ____ ___ 7__ _____10 _ ___ ____ _

'o 06 04 30 40 . 50 60< 70 80 90 10o in Core Flow (%of Rated)

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

Maximum Core Flow (% of A B Rated) 107.0 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 4 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report U-I-

z0.

~08 L00%CORE FLOW C,

0.. 07 04 Core Power (%of Rated)

MAPFACp =A-B (Po -P)

Operating Conditions Values of Variables P F SLO I TLO Fuel A B P0 24SP<28 FS60 SLO/TLO All 0.603 0.00 28 24*P<28 F>60 SLO/TLO All 0.560 0.00 28 28*P<61.72 All SLO/TLO All 1.00 0.005224 100 61.72 S P <71.28 All SLO /TLO GE13 1.00 0.005224 100 61.72*P<71.28 All TLO GE14 1.00 0.005224 100 P 2 71.28 All TLO All 1.00 0.005224 100 P Ž71.28 All SLO GE13 0.85 0.00 100 P2 61.72 All SLO GE14 0.80 0.00 100 P = Percent of Rated Core Power F = Percent of Rated Core Flow FIGURE 2-2A Power-Dependent APLHGR Multiplier (MAPFACp) versus Core Power (All Equipment In Service) 5 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report il AL tO LL 9L

- - - liTWO LOOP OPERATION (TLO)

_ 0.9 r

i 08 1*60% CODRE FLOW (TLO and SLO)

IX 00.1 3

a-L 05 04 o0 056 i > 60% CORE FLOW (TLO and SLO) 0~

04 20 325 3 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 24 28 Core Power (% of Rated)

MAPFACp = A - B (P0 - P)

Operating Conditions _ Values of Variables P F SLOITLO Fuel A B P0

_ _ _ _ _ __ _ _ _ _ _ T y pe _ _ _ _ l 24sP<28 F*60 SLOl TLO All 0.588 0.01167 28 24

• P <28 F > 60 SLO ITLO All 0.450 0.00967 28 28*P<61.72 All SLOITLO All 1.00 0.005224 100 61.72 < P < 71.28 All SLO / TLO GE13 1.00 0.005224 100 61.72 < P < 71.28 All TLO GE14 1.00 0.005224 100 PŽ71.28 All TLO All 1.00 0.005224 100 P 2 71.728 All SLO GE1 3 0.85 0.000 100 SLO GE14 0.0 0.000 100 P erP;->6en .72All Ra ed C re Po e 2o P = Percent of Rated Core Power F = Percent of Rated Core Flow FIGURE 2-2B Power-Dependent APLHGR Multiplier (MAPFACp) versus Core Power (Turbine Bypass Valves Inoperable) 6 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report 11 IL tO

a. ¶ t)

U U-

< 09 6

r.,

. 08 a~ 07

-j IL W 06 CI CL 3

05 04 -4 0

co04 03 20 125 30 35 40 45 5C0 55 60 65 I70 75 80 85 90 95 t0 Core Power (%of Rated) 24 MAPFACp = A - B (P0 - P)

Op rating Conditions Values of Variables P F SLOITLO Fuel A B Po T y pe _ _ _ _ _ _ _ _ _ _ _ _

24 < P < 40 All SLO I TLO All 0.49 0.0058 40 40 5 P* 100 All SLO /TLO All 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) 7 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report 1.1 U.

, 09 U-E 09

.2

= 0a I __ _____

II IL sL 07 08 I I I _

C, 04 _1~ -___ ____ ___ ___7 __

2 C) 0 C) 0 0.. 0 5 I04=X 04 25 I 30 35 40 45 50 55 60 65 70 75 80 85 90 95 T)O 28 Core Power (%of Rated)

MAPFACp = A - B (P0 - P)

Operating Conditions Values of Variables P F SLO I Fuel A B P0 TLO _jype ____

24 < P < 28 All SLO / TLO All * *

• 28

• P < 50.04 All SLO / TLO All 1.000 0.005224 100 50 04 < P < 85.50 All SLO / TLO All 0.739 0.000 N/A 85.50*< P < 100 I All TLO All 0.996 0.01771 100 P = Percent of Rated Core Power F = Percent of Rated Core Flow

• See Table 2-1 FIGURE 2-2D Power-Dependent APLHGR Multiplier (MAPFACp) versus Core Power (High Pressure Feedwater Heater(s) Out of Service) 8 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report Average Planar APLHGR .......- .- .- ..- .- .- ..- .- .- . .........

Exposure Limit 10.... . . . . -. . . . . . . . .. . . . . . . . . . . . ..UAEP.

0.00 10.64 *:...:: -'  :::::......:. .... .:.::...OPRTN  :..:-:

0.20 10.71 12 . . .. *t. . .- . . _._ .

1.00 10.88 . . . . *.-.. . .......... t 2.00 11.12 a0mb.......

_1. . . . . . .. . . . . . . -..

3.00 11.39 130  :::  :::

4.00 11.67 E1 . .:- . -- *::

. ::.N. . . :.: . . .:1.: . . . ::: . . .

. . . .... .. *. -. i CPrBE1. -.. . -... . l -.... .... .

5.00 11.93 . . . . .. .. . .. .. . .. . .PRTO . . . . . . . ............ . .... ..

. .--- .:::. .-.-. .---- .: .--- *::-- .- 1::--  :-- .-.-.-

6.00 12.14 c . o. . . . . . . -- . . -..-.-. . . .. .-.. ..-- *:--

. .:: . :...  :  :.- .: :.:.:-.: .:.:.: .:.:.:. :.:-  :. :-:-  :'  :  ::: .:1:::

7.00 12.28 . .. . . . . . '..- -.-.. .-. ., . .. .

8.00 12.42 80,. .... @.-.. ...- ,. ... ... ..........

9.00 12.58 10.00 12.71 70 . . . . . . . . . . . . . . . . . . . . . . .:.-- -.- . . . . .. ... :-*.:-: -

12.50 12.60 ~~~~~~~~~~. . .... .-. .-. ..-. .... ..- ..-. ,....

15.00 12.25 6 0 ' - *

• z ¢ - - S ~~. . . . . . . . . . . . - -.. .  ::.

17.50 11.90 20 00 11.56 25.00 10.88 30.00 10.21 35.00 9.56 40.00 8.92 45.00 8.27 50.00 7.62 55.00 6.93 00 50 100 150 200 250 300 350 400 45 0 50 0 55 0 60 0 57.53 6.58 Average Planar Exposure (GWd/ST)

NOTE. THIS IS THE APLH(;R LIMIT FOR THE MOST LIMITING LATTICE AS A FUNCTION OF AVERAGE PLANAR EXPOSURE.

FIGURE 2-3 APLHGR Limit versus Average Planar Exposure (Fuel Type: GE13-P9DTB378-6G5.0/6G4.0/1G2.0-IOOT-146-T) 9 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report Average Planar APLHGR 140 Exposure Limit 0.00 10 82 0 20 10.89 1.00 11.03 2.00 11.25 lACCEPTABLE 3.00 11.48 OPERATION 4 00 11.72 5.00 11.95 ito I

6.00 12.14 7.00 12.27 U,

8.00 12 41 E 9.00 12.56 s: 1 ACCEPTABLE 10.00 12.70 ccg l l ' l OPERATION l, T 12.50 12.61 15.00 12 25 17.50 11.91 20 00 11.56 80 25 00 10.88 30 00 10.22 35.00 9.57 70 40.00 8 92 45 00 8 28 50 00 7.62 60 55 00 6 94 00 50 100 o0 200 250 300 350 400 450 500 550 600 57.53 6 59 Average Planar Exposure (GWdJST)

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 (Fuel Type: GE13-P9DTB378-6G5.016G4.0-IOOT-146-T-2398) 10 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report Axerage 140 Planar APLHGR Exposure Limit 0 00 10.64 130 0 20 10.71 1.00 10.88 2.00 11.12 3 00 11.38 > II lPERATION e 4.00 11.66 5.00 11.92

,no 6.00 12.14 7.00 12.28 -J 8 00 12.42 3, E

Jo 9.00 12.57

-J 10.00 12.71 12.50 12.60 <:

tL 90 Ir --_ 11 1 1 1 ' '

15.00 17.50 12.25 11.91 1I - 1 1 1 t}

ll l l l l l l l l lI 20.00 11.56 80 25.00 10 88 30 00 10 21 35.00 9 56 70 40.00 8.92 45 00 8.28 50 00 7.62 60 00 150 200 250 300 350 400 450 500 550 600 55 00 6.94 5s0 J0 57.51 .6.59 Average Planar Exposure (GWd/ST)

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

FIGURE 2-5 APLHGR Limit versus Average Planar Exposure (Fuel Type: GE13-P9DTB378-6G5.016G4.01G2.0-10OT-146-T-2402) 11I Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report Average Planar APLHGR Exposure Limit 0000 9.72 Ito 020 9.79 1.00 9.92 2.00 10 10 3.00 10.21 4.00 10 31 5 00 1039 _ 90 6 00 10.48 7.00 10 58 8.00 10.67 9.00 10.77 80 0

10.00 10.86 11.00 10.97 -J isL 70 12.00 10 99 13.00 11.01 14.00 11.02 60 15.00 11.02 17.00 10 98 20.00 10.82 50 25 00 10.45 30.00 10.05 35.00 9.59 40 00 50 lo0 O50 200 250 300 350 400 450 500 550 600 40.00 9.07 45.00 8.54 Average Planar Exposure (GWdIST) 50.00 8.00 55 00 6 21 NOTE: THIS IS THE APLHGR LIMIT FOR THE 57.54 l4.92 MOST LIMITING LATTICE AS A FUNCTION OF AVERAGE PLANAR EXPOSURE.

FIGURE 2-6 APLHGR Limit versus Average Planar Exposure (Fuel Type: GE14-PIODNAB398-4G7.0110G6.0-IOOT-150-T-2615) 12 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report Average Planar APLHGR Exposure Limit 0.00 9.59 Ito 020 9.66 1.00 9.80 2.00 9.99 3.00 10.12 4 00 10.21 5.00 10 31 90 6.00 10.40 7.00 10.49 St 8 00 10.59 80 9 00 10.69

-j 10.00 10.79 0.

11.00 10.90 70 12.00 10.92 13.00 10.94 14.00 10.96 60 15.00 10.97 17.00 10.94 20.00 10.80 50 25.00 i0 44 30.00 10.05 35.00 9.59 40 50 100 15h0 200 250 300 350 400 450 500 550 600 40 00 9.07 00 45.00 8 54 Average Planar Exposure (GWdIST) 50.00 7.99 55.00 .6.17 NOTE: THIS IS THE APLHGR LIMIT FOR THE 57.46 492 4 MOST LIMITING LATTICE AS A FUNCTION OF AVERAGE PLANAR EXPOSURE.

FIGURE 2-7 APLHGR Limit versus Average Planar Exposure (Fuel Type: GE14-PlODNAB398-4G7.01 1G6.0-IOOT-150-T-2616) 13 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report Average Planar APLHGR Exposure Limit 0.00 9.48 Ito 0.20 9.55 1.00 9.70 2.00 9.91 3.00 10.08 4.00 10.20 5.00 10.29 E 90 6.00 10.39 7.00 10.49 E 80 8.00 10.59 9.00 10.69 10.00 10.79 50

-j 7 11.00 10.91 12.00 10.92 13.00 10.94 60 14.00 10 96 15 00 10.97 17.00 10.94 50 20.00 10.80 25.00 10.44 30.00 10.05 40 35.00 9.59 00 50 VD0 i50 200 250 300 350 400 450 500 550 600 650 40.00 9.07 Average Planar Exposure (GWd/ST) 45.00 8.54 50.00 7.99 55.00 6.16 NOTE: THIS IS THE APLHGR LIMIT FOR THE 57.45 4.92 MOST LIMmNG LATTICE AS A FUNCTION OF AVERAGE PLANAR EXPOSURE.

FIGURE 2-8 APLHGR Limit versus Average Planar Exposure (Fuel Type: GE14-PIODNAB398-4G7.0/1 1G6.01 G2.0-10OT-150-T-2617) 14 Revision 0

Plant Hatch Unit 2 Cycle 18 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, EOC-RPT status, and operability of the turbine bypass valves.

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

a. For 24% < power < 28%, the power-dependent MCPR limit, MCPRp, as determined by Table 3-1.

b. For power 2 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, as determined by Table 3-1 and the rated-power, rated-flow MCPR limit as determined by Table 3-1.

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 Xis 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 Xr= 0.0. For scram times between Option A and Option B, the MCPR limit for each fuel type corresponds to T. If Xhas not been determined, Option A limits are to be used. Refer to Table 3-1 to determine the applicable set of fuel-type dependent curves.

15 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report The average scram time of the control rods, a, is defined as:

Cave - TB X = 0, or , whichever is greater.

TA - TB where: TA = 1.08 sec (Technical Specification 3.1.4, Table 3.1.4-1, scram time limit to notch 36).

1/2 TB = gi + 1.65

• a

• N LEN, 1=1 where: g = 0.822 sec (mean scram time used in the transient analysis).

a = 0.018 sec (standard deviation of A).

n E NiT,

_ 1=1 Tave n INi

,=,

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

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

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

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

16 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report TABLE 3-1 MCPR Operating Flexibility Options Cycle Turbine Rated-Average Bypass Pressure MCPRp Power, Exposure EOC-RPT Valves Regulator Curve Kp Curve Rated-Flow MCPR Limits BOC to In Service Operable Operable Figure 3-1A Figure 3-3A Figure 3-4A EOR-2000 BOC to In Service Operable Inoperable Figure 3-1A Figure 3-3B Figure 3-4A EOR-2000 .

BOC to Out of Operable Operable Figure 3-1A Figure 3-3A Figure 3-4B EOR-2000 Service BOC to Out of Operable Inoperable Figure 3-1A Figure 3-3B Figure 3-41 EOR-2000 Service BOC to In Service Inoperable Operable Figure 3-1 B Figure 3-3A Figure 3-4C EEOC _ l BOC to In Service Inoperable Inoperable Figure 3-1B Figure 3-38 Figure 3-4C EEOC EOR-2000 to In Service Operable Operable Figure 3-1A Figure 3-3A Figure 3-4D EEOC EOR-2000 to In Service Operable Inoperable Figure 3-1A Figure 3-31 Figure 3-4D EEOC EOR-2000 to Out of Operable Operable Figure 3-1A Figure 3-3A Figure 3-4E EEOC Service EOR-2000 to Out of Operable Inoperable Figure 3-1A Figure 3-38 Figure 3-4E EEOC Service .

BOC = Beginning of Cycle EOR = End of rated conditions (100% power, 105% flow, ARO, with nominal feedwater temp.)

EEOC = Extended End of Cycle (beyond EOR, 100% power, 105% flow, with reduced feedwater temp.)

17 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report 28 IL 0

4-

.E

=1 E 24 E

0:

a.

cCX SSs0% owl 0

0 0.

i '

20 24 25 26 27 28 Core Power (% of Rated)

MCPRp = A + B (28 - P)

F 60 F > 60 2.52 10.0303 P = Percent of Rated Core Power F = Percent of Rated Core Flow FIGURE 3-1A Power-Dependent MCPR Limit (MCPRp) versus Core Power from 24% to 28% of Rated Core Power (Turbine Bypass Valves Operable) 18 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report 40 -

38-0, o32 30 3

g 25 0-24 24 25 26 27 28 Core Power (%of Rated)

MCPRp = A + B (28 - P)

I F F!:*60 F >60 A

2.42 3.35 I B I 1 0.0707 10.1178 P = Percent of Rated Core Power F = Percent of Rated Core Flow FIGURE 3-1B Power-Dependent MCPR Limit (MCPRp) versus Core Power from 24% to 28% of Rated Core Power (Turbine Bypass Valves Inoperable) 19 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report t15 a.

E

-J 4

0.

'O t3 C

12 tiC 30 40 50 60 70 80 90 no 1U0 Core Flow (% of Rated)

MCPRF = Maximum [1.25, (A*F + B)]

Operating Conditions Values of Variables Maximum Core Flow (% of A B Rated) 107.0 -0.00591 1.713 F = Percent of Rated Core Flow FIGURE 3-2 Flow-Dependent MCPR Limit (MCPRF) versus Core Flow 20 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report 17 -.

'. 16 - - - --

1.

- lo5 - -

W 14 - - - I 0

0C 0 1 0 1 IL I 28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96 1T0 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 I 60* P 1.00 0 00375 100 P = Percent of Rated Core Power FIGURE 3-3A Power-Dependent MCPR Multiplier (Kp) versus Core Power (PressureRegulatorOperable) 21 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report 17 1-S15 - -

Co14-

"U1 C

28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96 100 Core Power (%of Rated)

Kp= A + B (Po - P)

I P I A I B I Po l 28*P*100 I 1.00 I 0.01000 I 100 P = Percent of Rated Core Power FIGURE 3-3B Power-Dependent MCPR Multiplier (Kp) versus Core Power (Pressure Regulator Inoperable) 22 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report 140 138-136 II E

in 134 0

YE 132 130 t28 00 01 02 0.3 04 05 06 07 08 09 to Tau Tau GE14 GE13 1.0 1.38 1.34 0.0 1.35 1.29 FIGURE 3-4A MCPR Limits versus Average Scram Time (BOC to EOR-2000 MWdlst with EOC-RPT In Service and Turbine Bypass Valves Operable) 23 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report 152-150_

146-Is 144-

-j 142

• 140 ~ I 138-136-t34 C t32 _

00 01 02 03 04 05 06 07 08 09 to Tau Tau GE14 GE13 1.0 1.50 1.38 0.0 1.39 1.33 FIGURE 3-4B MCPR Limits versus Average Scram Time (BOC to EOR-2000 MWd~st with EOC-RPT Out of Service and Turbine Bypass Valves Operable) 24 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report 146-144 142 -

D138-

0. t340 136 134-t32 130 0 01 02 03 04 05 06 07 08 09 1 Tau Tau GE14 GE13 1.0 1.45 1.36 0.0 1.42 1.33 FIGURE 34C MCPR Limits versus Average Scram Time (BOC to EEOC with EOC-RPT In Service and Turbine Bypass Valves Inoperable) 25 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report 146 144 142 14 E

-j138 0:

136 134 132 t3 k 00 01 02 03 04 05 06 07 08 09 to Tau Tau GE14 GE13 1.0 1.43 1.34 0.0 1.40 1.31 FIGURE 3-4D MCPR Limits versus Average Scram Time (EOR-2000 MWd/st to EEOC with EOC-RPTIn Service and Turbine Bypass Valves Operable) 26 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report t66 t64 162 160 158 156 154

9152

3 150 O'148 E- _ _ _ __

il 05 to Tau Tau GE14 GE13 1.0 1.64 1.44 0.0 1.47 l1.36 FIGURE 3-4E MCPR Limits versus Average Scram Time (EOR-2000 MWd/st to EEOC with EOC-RPT Out of Service and Turbine Bypass Valves Operable) 27 Revision 0

Plant Hatch Unit 2 Cycle 18 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 2C51K615 A, B, C, and D. Projected Figure of Merit (FOM) value(s) throughout the cycle will be supplied by the Hatch Core Analysis Group.

OLMCPR 0.0

• FOM 592.1 92.1 < FOM 596.9 96.9 < FOM 5 102.4 102.4 < FOM 5 108.0 1.29 1.12 1.10 1.09 1.08 1.30 1.13 1.11 1.09 1.08 1.31 1.13 1.11 1.09 1.08 1.32 1.13 1.11 1.09 1.09 1.33 1.14 1.12 1.10 1.09 1.34 1.14 1.12 1.10 1.09 1.35 1.14 1.12 1.10 1.09 1.36 1.15 1.12 1.10 1.10 1.38 1.15 1.13 1.11 1.10 1.38 1.15 1.13 1.11 1.10

> 1.38 1.15 1.13 1.11 1.10 28 Revision 0

Plant Hatch Unit 2 Cycle 18 Core Operating Limits Report

5.0 REFERENCES

1. "General Electric Standard Application for Reactor Fuel," NEDE-24011-P-A-14, June 2000, and the US Supplement, NEDE-2401 1-P-A-14-US, June 2000.

2. "Supplemental Reload Licensing Report for Hatch 2 Reload 17 Cycle 18," Global Nuclear Fuel document 0000-0007-0430-SRLR, Revision 1, March 2003.

3. SNC Memo CAH-NF-2410, 'H2C18 SNC ARTS Analyses," W. R. Mertz to K. S.

Folk, March 11, 2003.

29 Revision 0