edwin i. hatch, unit 2 - vsp-snc-hv1-15-013, cycle 24 core operating limits report ... ·...

Edwin I. Hatch Nuclear PlantUnit 1 Cycle 27 Core Operating Limits Report Version 2Unit 2 Cycle 23 Core Operating Limits Report Version 2Unit 2 Cycle 24 Core Operating Limits Report Version 1

Information Letter of NSF Lead Test Assemblies

Enclosure 9

HNP Unit 2 Cycle 24 Version 1 Core Operating Limits ReportNON-PROPRIETARY INFORMATION

ENCLOSURE 2

VSP-SNC-HV1-15-013

Edwin I. Hatch Nuclear Plant Unit 2 Cycle 24Core Operating Limits Report

Non-Proprietary Information

INFORMATION NOTICE

This is a non-proprietary version of Enclosure I of VSP-SNC-HVI-15-013, which has theproprietary information removed. Portions of the document that have been removed areindicated by white space inside open and closed bracket as shown here [[ I].

SOUTHERN NUCLEAR OPERATING COMPANYEDWIN I. HATCH NUCLEAR PLANT

Unit 2 Cycle 24CORE OPERATING LIMITS REPORT

Version 1

Southern Nuclear Operating CompanyPost Office Box 1295

Birmingham, Alabama 35201


Edwin I. Hatch Nuclear PlantUnit 2 Cycle 24 Core Operating Limits Report

TABLE OF CONTENTS

Section Title Page

1.0 Introduction 1

2.0 APLHGR Limits 3

3.0 MCPR Operating Limits 7

4.0 LHGR Limits 29

5.0 PBDA Amplitude Setpoint 38

6.0 References 39


Plant Hatch Core OperatingUnit 2 Cycle 24 Non-Proprietary Information Limits Report

TABLES

Table No. Title Page

1-1 Main Turbine Bypass System Operability 1

1-2 Equipment-Out-of-Service Limitations 2

3-1 Exposure Definitions 9

3-2 Flow-Dependent MCPR Operating Flexibility Options 10

3-3 Power-Dependent MCPR Operating Flexibility Options 10

3-4 Power-Dependent Multiplier Flexibility Options 10

3-5 Rated-Power MCPR Operating Flexibility Options 11

3-6A TLO MCPR Limits for Main Turbine Pressure 12Regulator System Status in TLCO 3.3.13.c

3-6B SLO MCPR Limits for Main Turbine Pressure 12

Regulator System Status in TLCO 3.3.13.c

4-1 LHGR Limits versus Peak Pellet Exposure 29

4-2 Flow-Dependent LHGR Operating Flexibility Options 30

4-3 Power-Dependent LHGR Operating Flexibility Options 30

5-1 OPRM Setpoint 38

ii Version 1


FIGURES

Figure No. Title Page

2-1A GE14C Flow-Dependent APLHGR 4Multiplier (MAPFACF) versus Core Flow

2-1B GNF2 Flow-Dependent APLHGR 5Multiplier (MAPFACF) versus Core Flow

2-2 APLHGR Limit versus Average Planar 6Exposure

3-1 Flow-Dependent MCPR Limit (MCPRF) 13versus Core Flow

3-2A Power-Dependent MCPR Limit (MCPRp) 14versus Core Power from 24% to 45% ofRated Core Power

3-2B Power-Dependent MCPR Limit (MCPRp) 15versus Core Power from 24% to 45% ofRated Core Power (Main Turbine BypassSystem Inoperable and/or Main TurbinePressure Regulator System in TLCO3.3.13.c)

3-3A Power-Dependent MCPR Multiplier (Kp) 16versus Core Power

3-3B Power-Dependent MCPR Multiplier (Kp) 17versus Core Power (High PressureFeedwater Heaters Out of Service)

3-3C Power-Dependent MCPR Multiplier (Kp) 18versus Core Power (Main TurbinePressure Regulator System in TLCO3.3.13.c)

3-4A-1 TLO MCPR Limits versus Average Scram 19Time

3-4A-2 TLO MCPR Limits versus Average Scram 20Time (EOC-RPT Out of Service)

iii Version 1


Figure No. Title Page

3-4A-3 TLO MCPR Limits versus Average Scram 21Time (Main Turbine Bypass SystemInoperable)

3-4A-4 TLO MCPR Limits versus Average Scram 22Time (EOC-RPT Out of Service and MainTurbine Bypass System Inoperable)

3-4A-5 TLO MCPR Limits versus Average Scram 23Time (Main Turbine Pressure RegulatorSystem in TLCO 3.3.13.c)

3-4B-1 SLO MCPR Limits versus Average Scram 24Time

3-4B-2 SLO MCPR Limits versus Average Scram 25Time (EOC-RPT Out of Service)

3-4B-3 SLO MCPR Limits versus Average Scram 26Time (Main Turbine Bypass SystemInoperable)

3-4B-4 SLO MCPR Limits versus Average Scram 27Time (EOC-RPT Out of Service and MainTurbine Bypass System Inoperable)

3-4B-5 SLO MCPR Limits versus Average Scram 28Time (Main Turbine Pressure RegulatorSystem in TLCO 3.3.13.c)

4-1A GE14C Flow-Dependent LHGR Multiplier 31(LHGRFACF) versus Core Flow

4-1B GNF2 Flow-Dependent LHGR Multiplier 32(LHGRFACF) versus Core Flow

4-1C GNF2 Flow-Dependent LHGR Multiplier 33(LHGRFACF) versus Core Flow (MainTurbine Bypass System Inoperable)

4-2A Power-Dependent LHGR Multiplier 34(LHGRFACp) versus Core Power

iv Version 1

Plant HatchUnit 2 Cycle 24

Core OperatingLimits ReportNon-Proprietary Information

Figure No.

4-2B

Title

Power-Dependent LHGR Multiplier(LHGRFACp) versus Core Power(High Pressure Feedwater Heaters Out ofService)

GE14C LHGR versus Peak PelletExposure

GNF2 LHGR versus Peak Pellet Exposure

35

4-3A

4-3B

36

37

V Version 1



1.0 INTRODUCTION

The Core Operating Limits Report (COLR) for Plant Hatch Unit 2 Cycle 24 is prepared inaccordance with the requirements of Technical Specification 5.6.5. The core operatinglimits presented herein were developed using NRC-approved methods (References 1through 6). Results from the reload analyses for the fuel in Unit 2 Cycle 24 aredocumented in References 3 through 5.

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. Linear Heat Generation Rate (LHGR) - Technical Specification 3.2.3

Also included in this report is the maximum allowable scram setpoint for the PeriodBased Detection Algorithm (PBDA) in the Oscillation Power Range Monitor (OPRM).

Based upon the reload analysis for this cycle, the following operability requirement is

defined for Unit 2 operation.

TABLE 1-1

Main Turbine Bypass System Operability

System Operability Requirement

Main Turbine Bypass System Operable At least two bypass valves must be

(Technical Specification 3.7.7) operable

-1I

1 Version 1



From a fuel thermal limits perspective, the following limitations are placed on Unit 2

operation.

TABLE 1-2

Equipment-Out-of-Service Limitations

Equipment I Condition Limitation

e CTP must be _ 2000 MWthSingle-Loop Operation (SLO) * Core Flow must be < 56% of

Rated

High Pressure Feedwater Heaters Out of Service No Core Operating Limits available

and Main Turbine Pressure Regulator System in (Technical Specifications RAS

TLCO 3.3.13.c simultaneously 3.2.2. and 3.2.3 must be entered)

2 Version 1



2.0 APLHGR LIMITS (Technical Specification 3.2.1)

For both two loop operation (TLO) and single loop operation (SLO), the APLHGR limitfor each six inch axial segment of each fuel assembly in the core is the applicable fuel-type-specific APLHGR limit in Figure 2-2 multiplied by the fuel-type-specific flow-dependent multiplier, MAPFACF, taken from either:

a. Figure 2-1A for GE14C fuel

OR

b. Figure 2-11B for GNF2 fuel.

3 Version 1



1.0

U-

0.AD0.9

0.86

-J 0.6

I,

.-J 0.6

0

0._

M 0.5

0.4110

Core Flow (%of Rated)

Operating ConditionsF SLO / TLO MAPFACF

30:_< F• 61 TLO 0.8661 <F TLO 1.0030 _ F SLO 0.80

F = Percent of Rated Core Flow

FIGURE 2-1A

GE14C Flow-Dependent APLHGR Multiplier (MAPFACF) versus Core Flow

4 Version 1



1.0

0.LL

'0

0.9

M 0.8

0.7

C* 0.6a.

0

C 0.5

0.4

FT LO_

4 4 4 4 4 4 4

-I-I-i-I-I-i-I-

SLO

30 40 50 60 70 80 90 100 110


Operating ConditionsF SLO / TLO MAPFACF

30_<F TLO 1.00305 •F SLO 0.80


FIGURE 2-1B

GNF2 Flow-Dependent APLHGR Multiplier (MAPFACF) versus Core Flow

5 Version 1



Average GE14CPlanar APLHGR

Exposure Limit(GWd/ST) (kW/ft)

0.00 12.8214.51 12.8219.13 12.8257.61 8.0063.50 5.00

Average GNF2Planar APLHGR

Exposure Limit(GWd/ST) (kW/ft)

0.00 13.7817.15 13.7860.78 6.8763.50 5.50

14.0

13.0

12.0

11.0

10.0

9.0

8.0

7.0

6.0

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 65.0 70

Average Planar Exposure (GWd/ST)

5.0

4.0.0

FIGURE 2-2

APLHGR Limit versus Average Planar Exposure

6 Version 1



3.0 MCPR OPERATING LIMITS (Technical Specification 3.2.2)

The MCPR operating limits (OLMCPR) for each fuel type are a function of core power,

core flow, average scram time, number of operating recirculation loops, EOC-RPTsystem status, operability of the main turbine bypass system, status of the high pressurefeedwater heaters, the status of the main turbine pressure regulator system, and cycle

exposure. Cycle exposures are defined in Table 3-1.

The OLMCPRs for both two loop operation (TLO) and single loop operation (SLO) are

determined as follows:

a. For 24% _< power < 45%, the greater of either:

1) The flow-dependent MCPR limit, MCPRF, as determined by Table 3-2,

OR

2) The power-dependent MCPR limit, MCPRp, as determined by Table 3-3.

b. For power Ž_ 45%, the OLMCPRs are the greater of either:

1) MCPRF, as determined by Table 3-2,

OR

2) The product of the power-dependent multiplier, Kp, as determined byTable 3-4, and the rated-power OLMCPR, as determined by Table 3-5.

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

In the 3-4A and 3-4B figures, Option A scram time OLMCPRs correspond to t = 1.0,where -c is determined from scram time measurements performed in accordance withTechnical Specifications Surveillance Requirements 3.1.4.1 and 3.1.4.2. Option Bvalues correspond to T = 0.0. For scram times between Option A and Option B, therated-power OLMCPR corresponds to T. If T has not been determined, Option A limitsmust be used.

7 Version 1



The average scram time of the control rods, t, is defined as:

Tave - TB

= 0, OR , whichever is greater.TA - TB

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

TB + ji1.65 - a1

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

a = 0.018 sec (standard deviation of ji).

N1 = total number of active rods measured in Technical SpecificationsSurveillance Requirement 3.1.4.1.

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

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

- 1=1

J-•N, r

Tave -

wErN,i=1

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

8 Version 1



TABLE 3-1

Exposure Definitions

Exposure Label Cycle Exposure Definition

BOC Beginning of Cycle 0 MWd/STExposure

MOC1 First Middle of Cycle EOR - 7945 MWd/STExposure

MOC2 Second Middle of Cycle EOR - 4945 MWd/STExposure

Projected end of rated powerwith all control rods out atEOR End of Rated Exposure rated core flow and rated

feedwater temperature

EOC End of Cycle Exposure Exposure at cycle shutdown

9 Version 1



TABLE 3-2

Flow-Dependent MCPR Operating Flexibility Options

MCPRFEquipment In or Out of Service

EOC-RPT Main Turbine Main Turbine High Pressure Figure#System In Bypass System Pressure Regulator Feedwater Heaters

Service Operable* System Status In ServiceYes/No Yes/No TLCO 3.3.13.a or b Yes/No 3-1Yes/No Yes/No TLCO 3.3.13.c Yes 3-1Yes/No Yes/No TLCO 3.3.13.c No Not Licensed

TABLE 3-3

Power-Dependent MCPR Operating Flexibility Options

MCPRp from > 24% to < 45% Power

Equipment In or Out of ServiceEOC-RPT Main Turbine Main Turbine High Pressure Figure #System In Bypass System Pressure Regulator Feedwater

Service Operable* System Status Heaters In ServiceYes/No Yes TLCO 3.3.13.a or b Yes/No 3-2AYes/No No TLCO 3.3.13.a or b Yes/No 3-28Yes/No Yes/No TLCO 3.3.13.c Yes 3-28Yes/No Yes/No TLCO 3.3.13.c No Not Licensed

TABLE 3-4

Power-Dependent Multiplier Flexibility Options

Kp for Power > 45% of Rated

Equipment In or Out of ServiceEOC-RPT Main Turbine Main Turbine High Pressure Figure #System In Bypass System Pressure Regulator Feedwater Heaters

Service Operable* System Status In ServiceYes/No Yes/No TLCO 3.3.13.a or b Yes 3-3AYes/No Yes/No TLCO 3.3.13.a or b No 3-31Yes/No Yes/No TLCO 3.3.13.c Yes 3-3CYes/No Yes/No TLCO 3.3.13.c No Not Licensed

* At least two bypass valves must be operable

10 Version 1



TABLE 3-5

Rated-Power MCPR Operating Flexibility Options

Rated-power OLMCPRs

Equipment TLO SLOIn/Out of Service

Equipment In Service1 Figure 3-4A-1 Figure 3-4B-1

EOC-RPT Out of Service1 Figure 3-4A-2 Figure 3-4B-2

Main Turbine Bypass Figure 3-4A-3 Figure 3-4B-3System Inoperable 1

EOC-RPT Out of Service &Main Turbine Bypass Figure 3-4A-4 Figure 3-4B-4System Inoperable1

Main Turbine PressureRegulator System in TLCO Table 3-6A Table 3-6B

3.3.13. c2

1. High Pressure Feedwater Heaters In or Out of Service2. High Pressure Feedwater Heaters Out of Service in combination with Main Turbine Pressure Regulator

system status in TLCO 3.3.13.c is not a licensed condition.

11 Version 1



TABLE 3-6A

TLO MCPR Limits for Main Turbine Pressure Regulator System Status in TLCO 3.3.13.c

Exposure Range

Additional Equipment BOC - MOC1 MOC1 - MOC2 MOC2-EOCOut of Service / Inoperable

None Figure 3-4A-5 Figure 3-4A-5 Figure 3-4A-5

EOC-RPT Out of Service Figure 3-4A-5 Figure 3-4A-5 Figure 3-4A-2

Main Turbine Bypass System Figure 3-4A-5 Figure 3-4A-5 Figure 3-4A-3Inoperable

EOC-RPT Out of Service & MainTurbine Bypass System Inoperable Figure 3-4A-5 Figure 3-4A-4 Figure 3-4A-4

TABLE 3-6B

SLO MCPR Limits for Main Turbine Pressure Regulator System Status in TLCO 3.3.13.c

Y

Exposure Range

Additional Equipment BOC - MOC1 MOC1 - MOC2 MOC2 - EOCOut of Service / Inoperable

None Figure 3-4B-5 Figure 3-48-5 Figure 3-4B-5

EOC-RPT Out of Service Figure 3-4B-5 Figure 3-4B-5 Figure 3-4B-2

Main Turbine Bypass System Figure 3-4B-5 Figure 3-4B-5 Figure 3-4B-3Inoperable

EOC-RPT Out of Service & MainTurbine Bypass System Inoperable Figure 3-48-5 Figure 3-48-4 Figure 3-4B-4

12 Version 1



Q.

-,m

._J

0P

1.61

1.5 Maxim urn Flow 107%"

1.4

1.3

1.2

1.1

30 40 50 60 70 80 90 100 110


MCPRF(TLO) = A + B*FMCPRF(SLO) = MCPRF(TLO) + 0.03

Flow A B30:5 F < 80 1.7294 -0.0059880•5 F < 90 1.4830 -0.00290

90 < F 1.2220 0.00000F = Percent of Rated Core Flow

FIGURE 3-1

Flow-Dependent MCPR Limit (MCPRF) versus Core Flow

13 Version 1



2.8

2.CL

2.4.E-J

2.2

IN 2.0

00.

1.8

1.645

Core Power (% of Rated)

MCPRp(TLO) = A + B*PMCPRp(SLO) = MCPRp(TLO) + 0.03

F P A BF5 <60 24 < P < 28 2.1900 0.00000F > 60 24 _< P < 28 3.3900 -0.03000

All 28 _< P < 45 2.6671 -0.01882P = Percent of Rated Core PowerF = Percent of Rated Core Flow

FIGURE 3-2A

Power-Dependent MCPR Limit (MCPRp) versus Core Powerfrom 24% to 45% of Rated Core Power

14 Version 1



2.8

2.6

ZA

2.2

CL

2.2

IS 2.0")

L20.

1.8

1.645

Core Power(% of Rated)

MCPRp(TLO) = A + B*PMCPRp(SLO) = MCPRp(TLO) + 0.03

F P A BF -<60 24•_< P < 28 3.1000 -0.03250F > 60 24•_ P < 28 3.3900 -0.03000

All 28 _< P < 45 2.6671 -0.01882P = Percent of Rated Core PowerF = Percent of Rated Core Flow

FIGURE 3-2B

Power-Dependent MCPR Limit (MCPRp) versus Core Powerfrom 24% to 45% of Rated Core Power

(Main Turbine Bypass System Inoperable and/orMain Turbine Pressure Regulator in TLCO 3.3.13.c)

15 Version 1



1.3

1.2

(Da)0.

(L

1.045 50 55 60 65 70 75 80 85 90 95 100

Core Power(%of Rated)

Kp A + B*P

P A B45 < P < 60 1.6700 -0.0086760•_< P < 85 1.3708 -0.00368

85•< P 1.3870 -0.00387P = Percent of Rated Core Power

FIGURE 3-3A

Power-Dependent MCPR Multiplier (Kp) versus Core Power

16 Version 1



1.3

• 1.2

o1.1

0M

-.

45 50 55 60 65 70 75 80 85 90 95 100


K-- A + B*P

P A B45 _ P < 60 1.6700 -0.0086760!5 P < 85 1.3012 -0.00252

85 _ P 1.5800 -0.00580P = Percent of Rated Core Power

FIGURE 3-3B

Power-Dependent MCPR Multiplier (Kp) versus Core Power(High Pressure Feedwater Heaters Out of Service)

17 Version 1



1.3

=1.2a.

S

CL 1.1

0

1.045 50 55 60 65 70 75 80 85 90 95 100


Kp A + B*P

P A B45:_ P < 60 1.5320 -0.0056060!5 P < 85 1.3808 -0.00308

85• P 1.3870 -0.00387P = Percent of Rated Core Power

FIGURE 3-3C

Power-Dependent MCPR Multiplier (Kp) versus Core Power(Main Turbine Pressure Regulator System in TLCO 3.3.13.c)

18 Version 1



E_a-C-,

1 70

1.68

1.66

1.64

1.62

1.60

1.58

1.56

1.54

1.52

1.50

1.48

1.46

1.44

1.42

1.40

1.38

1.36

1.70

1.68

1.66

1.64

1.62

1.60

1.58

1.56

1.54 E

1.52

1.50

1.48

1.46

1.44

1.42

1.40

1.38

1.361.0

Exposure Range OLMCPR(TLO)t= 0.0 t= 1.0

BOC - MOCl 1.39 1.39MOC1 - MOC2 1.39 1.48MOC2 - EOC 1.43 1.54

FIGURE 3-4A-1

TLO MCPR Limits versus Average Scram Time

19 Version 1



4

E

n.

1.70

1.68

1.66

1.64

1.62

1.60

1.58

1.56

1.54 1

1.52 IC.)

1.50

1.48

1.46

1.44

1.42

1.40

1.38

1.360.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

Exposure Range OLMCPR(TLO)_ _ _=_0.0 _= 1.0

BOC - MOC1 1.39 1.44MOC1 - MOC2 1.39 1.52MOC2-EOC 1.47 1.60

FIGURE 3-4A-2

TLO MCPR Limits versus Average Scram Time(EOC-RPT Out of Service)

20 Version 1


Core .OperatingLimits ReportNon-Proprietary Information

1.

1.

1.

1.

1.

1.

1.

1.

•_1.-J

0.C) 1

70

68

66

64

62

60

.4. 4 *4* 4 .4.

4 I t .4~ 4 4 4 + 4

4 .4 t 4- * 4 4 + 4

t I t 4. 4 ~4. t .4. 4

t I t 4 4. .4 4. .4 4

58 _______

56 ____________

54 _______

52 ______

50 MC-O

48 ______

46 ___________

44 ______

42 ______ ______

40 ______ ______ ______

38 o- o36 _____ _____ _____

1.70

1.68

1.66

1.64

1.62

1.60

1.58

1.56

1.54 E

1.52 0.

C.)1.50

1.48

1.46

1.44

1.42

1.40

1.38

1.360.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

Exposure Range OLMCPR(TLO)= 0.0 r=1.0

BOC - MOCl 1.39 1.39MOC1 - MOC2 1.39 1.49MOC2-EOC 1.44 1.55

FIGURE 3-4A-3

TLO MCPR Limits versus Average Scram Time(Main Turbine Bypass System Inoperable)

21 Version 1



w

E-J

0~0

1.70

1.68

1.66

1.64

1.62

1.60

1.58

1.56

1.54

1.52

1.50

1.48

1.46

1.44

1.42

1.40

1.38

1.36

_____MOC2 - EOC

OCI Moc-Moc IIF

--- =---..- •BOC - MOC1

1.70

1.68

1.66

1.64

1.62

1.60

1.58

1.56

1.54 E

1.52 a.U

1.50

1.48

1.46

1.44

1.42

1.40

1.38

1.360.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

Exposure Range OLMCPR(TLO)T_= 0.0 _ _ _= 1.0

BOC - MOCi 1.39 1.48MOC1 - MOC2 1.43 1.56MOC2-EOC 1.50 1.64

FIGURE 3-4A-4

TLO MCPR Limits versus Average Scram Time(EOC-RPT Out of Service and Main Turbine Bypass System Inoperable)

22 Version 1



E

a.

1.70

1.68

1.66

1.64

1.62

1.60

1.58

1.56

1.54

1.52

1.50

1.48

1.46

1.44

1.42

1.40

1.38

1.36

Boc - EO

1.70

1.68

1.66

1.64

1.62

1.60

1.58

1.56

1.54 E

1.52 M(,)

1.50

1.48

1.46

1.44

1.42

1.40

1.38

1.36

4- + t + 4 + 4 +

4- F + F + 4 + 4 +

4- 1 .1- 4 + 4 .4- 4 4-0.0 0.1 . 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

Exposure Range OLMCPR(TLO)BO-=C0.0 = 1.0

BOC - EOC 1.43 1.54

FIGURE 3-4A-5

TLO MCPR Limits versus Average Scram Time(Main Turbine Pressure Regulator System in TLCO 3.3.13.c)

23 Version 1



E

a.

1.70

1.68

1.66

1.64

1.62

1.60

1.58

1.56

1.54

1.52 1

1.46 MOC2-EOC .

1.46

1.44

1.442" BOC - MOd11.42 _____

1.40

1.38

1.36

1.70

1.68

1 66

1.64

1.62

1.60

1.58

1.56

1.54 •-,J

1.52 a.

1.50

1.48

1.46

1.44

1.42

1.40

1.38

1.360.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

Exposure Range OLMCPR(sLo)= 0.0 r=1.0

BOC - MOCl 1.45 1.45MOC1 - MOC2 1.45 1.51MOC2 - EOC 1.46 1.57

FIGURE 3-4B-1

SLO MCPR Limits versus Average Scram Time

24 Version 1



1.70

I.

E 1

[. 1.-•1.

1.70

1.68

1.66

1.64

1.62

1 60

1.56

1.56

1.54 E

1.52 w

1.50

1.48

1.46

1.44

1.42

1.40

1.38

1.360.5 0.6 0.7 0.8 0.9 1.0

'V

Exposure Range OLMCPR(SLO)=_0.0 _ = 1.0

BOC - MOCl 1.45 1.47MOC1 - MOC2 1.45 1.55MOC2-EOC 1.50 1.63

FIGURE 3-4B-2

SLO MCPR Limits versus Average Scram Time(EOC-RPT Out of Service)

25 Version 1



C.)

1.70

1.68

1.66

1.64

1.62

1.60

1.58

1.56

1.54

1.52

1.50

1.48

1.46

1.44

1.42

1.40

1.38

1.70

1.68

1.66

1.64

1.62

1.60

1.58

1.56

1.54 E

1.52 cc

1.50

1.48

1.46

1.44

1.42

1.40

1.38

1.36

Exposure Range OLMCPR(sLo)= 0.0 _ _ = 1.0

BOC - MOCi 1.45 1.45MOC1 - MOC2 1.45 1.52MOC2-EOC 1.47 1.58

FIGURE 3-4B-3

SLO MCPR Limits versus Average Scram Time(Main Turbine Bypass System Inoperable)

26 Version 1



4 1 .

1.

1.58

1.56

1.54 .E

1.52 wl()

1.50

1.48

1.46

1.44

1.42

1.40

1.38

1.360.7

Exposure Range OLMCPR(sLo)_=0.0 = 1.0

BOC - MOC1 1.45 1.51MOCI - MOC2 1.46 1.59MOC2-EOC 1.53 1.67

FIGURE 3-4B-4

SLO MCPR Limits versus Average Scram Time(EOC-RPT Out of Service and Main Turbine Bypass System Inoperable)

27 Version 1



E

a-(-

1.70

1.68

1.66

1.64

1.62

1.60

1.58

1.56

1.54

1.50 ___

1.48 _

1.46

1.44

1.42

1.40

1.36

1.360.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.

1.70

1.68

1.66

1.64

1.62

1.60

1.58

1.56

1.54

1.52 44L)

1.50

1.48

1.46

1.44

1.42

1.40

1.36

1.360

Exposure Range OLMCPR(sLo)

S =O0.0 =1.0BOC - EOC 1.46 1.57

FIGURE 3-4B-5

SLO MCPR Limits versus Average Scram Time(Main Turbine Pressure Regulator System in TLCO 3.3.13.c)

28 Version 1



4.0 LHGR LIMITS (Technical Specification 3.2.3)

For both two loop operation (TLO) and single lop operation (SLO), the LHGR limit foreach six inch axial segment of each fuel rod in the core is the applicable rated-power,rated-flow LHGR limit taken from Table 4-1 multiplied by the smaller of either:

a. The flow-dependent multiplier, LHGRFACF, as determined by Table 4-2,

OR

b. The power-dependent multiplier, LHGRFACp, as determined by Table 4-3.

Table 4-1 shows the exposure-dependent LHGR limits for all fuel types in the core, as afunction of initial gadolinium concentration in a six inch segment of a fuel rod. Forexposures between the values shown in Table 4-1, the LHGR limit is based on linearinterpolation. For illustration purposes, Figures 4-3A and 4-3B show the LHGR limits forfuel segments with the lowest (UO2 ) and highest (U0 2+Gd 2O 3) initial Gd concentrations.

TABLE 4-1

LHGR Limits versus Peak Pellet Exposure

Rod Pellet Pellet Pellet Pellet Pellet PelletSegment Maximum Exposure Power at Exposure Power at Exposure at

Fuel Initial Power Knee I Knee 2 Knee 2 EOL EOLType Wt-% Gd20, (kWlft) (GWdIST) (kWlft) (GWdlST) (kWlft) (GWdlST)

GE14C

GNF2

BOL = Beginning of Life (zero exposure)EOL = End of Life (maximum licensed pellet exposure)

29 Version 1



TABLE 4-2

Flow-Dependent LHGR Operating Flexibility Options

LHGRFACF

Equipment In or Out of Service

Fuel Type EOC-RPT Main Turbine Main Turbine High Pressure Figure #System In Bypass System Pressure Regulator Heaters In

Service Operable* System Status ServiceGE14C Yes/No Yes/No TLCO 3.3.13.a or b Yes/No 4-1AGE14C Yes/No Yes/No TLCO 3.3.13.c Yes 4-1AGE14C Yes/No Yes/No TLCO 3.3.13.c No Not LicensedGNF2 Yes/No Yes TLCO 3.3.13.a or b Yes/No 4-1BGNF2 Yes/No Yes TLCO 3.3.13.c Yes 4-1BGNF2 Yes/No No TLCO 3.3.13.a or b Yes/No 4-1CGNF2 Yes/No No TLCO 3.3.13.c Yes 4-1CGNF2 Yes/No Yes/No TLCO 3.3.13.c No Not Licensed

TABLE 4-3

Power-Dependent LHGR Operating Flexibility Options

LHGRFACp

Equipment In or Out of Service

Fuel Type EOC-RPT Main Turbine Main Turbine High Pressure Figure #System In Bypass System Pressure Regulator Heaters InService Operable* System Status Service

GE14C/GNF2 Yes/No Yes/No TLCO 3.3.13.a or b Yes 4-2AGE14C/GNF2 Yes/No Yes/No TLCO 3.3.13.c Yes 4-2AGE14C/GNF2 Yes/No Yes/No TLCO 3.3.13.a or b No 4-2BGE14C/GNF2 Yes/No Yes/No TLCO 3.3.13.c No Not Licensed

* At least two bypass valves must be operable

30 Version 1

Plant HatchUnit 2 Cycle 24 Non-Proprietary Information

Core OperatingLimits Report

1.0

C.)U

0.9

0.8

0.7

0. 0.6

.2

U- 0.5

0.430 40 50 60 70 80 90


100 110

LHGRFACF = A + B*F

Operating Conditions Values of VariablesF SLO / TLO A B

30 < F < 50.70 SLO / TLO 0.4574 0.00675850.70 < F < 80.29 TLO 0.4574 0.006758

50.70 - F SLO 0.8000 0.00000080.29•< F TLO 1.0000 0.000000


FIGURE 4-1A

GE14C Flow-Dependent LHGR Multiplier (LHGRFACF) versus Core Flow

31 Version 1



1.0

U

0.9"r.I

L- 0.80.4

CD 0.7

,-J

S0.6a.

0w. 0.5

0.4

30 40 50 60 70 80 90 100 110


LHGRFACF = A + B*F


30!< F < 50 SLO / TLO 0.20000 0.0119050 < F < 50.7 SLO / TLO 0.45667 0.0067750.7 < F < 80 TLO 0.45667 0.00677

50.7 < F SLO 0.80000 0.0000080 < F < 90 TLO 0.98200 0.00020

90•5 F TLO 1.00000 0.00000F = Percent of Rated Core Flow

FIGURE 4-1B

GNF2 Flow-Dependent LHGR Multiplier (LHGRFACF) versus Core Flow

32 Version 1



1.0

U

0.90-j

0.8

0.7-- I

0.6

LL 0.5

0.430 40 50 60 70 80 90 100 110


LHGRFACF = A + B*F


30 _ F < 50 SLO / TLO 0.380 0.004950_5F<60 SLO/TLO -0.210 0.0167

60•5 F < 61.2 SLO / TLO 0.390 0.006761.2:5 F < 90 TLO 0.390 0.0067

61.2 < F SLO 0.800 0.000090 < F < 100 TLO 0.930 0.0007

100• F TLO 1.000 0.0000F = Percent of Rated Core Flow

FIGURE 4-1C

GNF2 Flow-Dependent LHGR Multiplier (LHGRFACF) versus Core Flow(Main Turbine Bypass System Inoperable)

33 Version 1



1.1

-~1.0

0.9

0.7r

0.8

07w.J

0.I•0.6

0.0.5

0.424 28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96 100


LHGRFACP = A + B*P

Operating Conditions Values of VariablesP F A B

24:_ P < 28 F > 60 0.50500 0.00125024:_ P < 28 F•_< 60 0.41500 0.005000

28 _ P All 0.47760 0.005224P = Percent of Rated Core PowerF = Percent of Rated Core Flow

FIGURE 4-2A

Power-Dependent LHGR Multiplier (LHGRFACp) versus Core Power

34 Version 1



1,1

• 1.0

09

• 0.8

C,

0.7

CL

,.J

0.6

0I.

0.5

0.424 28 32 36 40 44 48 52 . 56 60 64 68 72 76 80 84 88 92 96 100


LHGRFACP = A + B*P

Operating Conditions Values of VariablesP F A B

24:_ P < 28 F > 60 0.50500 0.0012524:_ P < 28 F5 _60 0.41500 0.0050028!_ P < 52 All 0.47817 0.0052152 _ P < 80 All 0.74900 0.00000

80 _< P All -0.25500 0.01255P = Percent of Rated Core PowerF = Percent of Rated Core Flow

FIGURE 4-2B

Power-Dependent LHGR Multiplier (LHGRFACp) versus Core Power(High Pressure Feedwater Heaters Out of Service)

35 Version 1



Lowest Initial GdConcentration

PeakPellet

Exposure LHGR(GWd/ST) (kW/ft)

[[~

_~~]]

rr

Highest Initial GdConcentrationPeakPellet


[[~

-]]

FIGURE 4-3A

GE14C LHGR versus Peak Pellet Exposure

36 Version 1



Lowest Initial GdConcentrationPeakPellet


[[L

1]

FIGURE 4-3B

GNF2 LHGR versus Peak Pellet Exposure

37 Version 1



5.0 PBDA AMPLITUDE SETPOINT

The amplitude trip setpoint in the Period Based Detection Algorithm in the OPRM systemshall not exceed the value reported in the Table below. This applies to instruments2C51K615 A, B, C, and D.

TABLE 5-1

OPRM Setpoint

I OLMCPR OPRM Set oint_ 1.39 1.12

38 Version 1


6.0 REFERENCES

1. "General Electric Standard Application for Reactor Fuel," NEDE-2401 1-P-A-20,December 2013, and the US Supplement, NEDE-24011-P-A-20-US, December2013.

2. GNF letter VSP-SNC-HV1-14-107-R1, "Hatch 2 C24 FBIR & SRLR," V. S. Perry to

S. Hoxie-Key, January 28, 2015.

3. Global Nuclear Fuel Document 000N9122, "Supplemental Reload Licensing Reportfor Edwin I. Hatch Nuclear Power Plant Unit 2, Reload 23 Cycle 24," Revision 0,

January 2015.

4. Global Nuclear Fuel Document 000N9123, "Fuel Bundle Information Report forHatch 2, Reload 23 Cycle 24," Revision 0, November 2014.

5. SNC Nuclear Fuel Document NF-14-020 "Hatch-2 Cycle 24 Reload LicensingAnalysis Report," Version 1, December 2014.

6. GNF Document DB-0012.05, "Fuel Rod Thermal-Mechanical Performance Limitsfor GE14 and GNF2," Revision 4, April 2014.

39 Version 1

edwin i. hatch, unit 2 - vsp-snc-hv1-15-013, cycle 24 core operating limits report ... ·...

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