NL-17-1346, VSP-SNC-HTl-17-041, Edwin I. Hatch Nuclear Plant - Unit 1 Cycle 28 Core Operating Limits Report Version 2.

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VSP-SNC-HTl-17-041, Edwin I. Hatch Nuclear Plant - Unit 1 Cycle 28 Core Operating Limits Report Version 2.
ML17213A076
Person / Time
Site: Hatch Southern Nuclear icon.png
Issue date: 07/28/2017
From:
Southern Nuclear Operating Co
To:
Office of Nuclear Reactor Regulation
References
NL-17-1346 VSP-SNC-HTl-17-041
Download: ML17213A076 (46)


Text

Edwin I. Hatch Nuclear Plant - Unit 1 Unit 1 Cycle 28 Core Operating Limits Report Version 2 Enclosure 2 Unit 1 Cycle 28 Core Operating Limits Report NON-PROPRIETARY INFORMATION

ENCLOSURE2 VSP-SNC-HTl-17-041 Edwin I. Hatch Nuclear Plant Unit 1 Cycle 28 Core Operating Limits Report, Version 2 Non-Proprietary Information INFORMATION NOTICE This is a non-proprietary version of Enclosure 1 of VSP-SNC-HTl-17-041, which has the proprietary information removed. Portions of the document that have been removed are indicated by white space inside open and closed bracket as shown here (( )).

    • -:-,I SOUTHERN NUCLEAR OPERATING COMPANY EDWIN I. HATCH NUCLEAR PLANT Unit 1 Cycle 28 CORE OPERATING LIMITS REPORT Version 2 Southern Nuclear Operating Company Post Office Box 1295 Birmingham, Alabama 35242 Non-Proprietary Information

Non-Proprietary Information

Plant Hatch . Cwe Operating.

. Unit 1 Cycle 28 -*#.. '

  • Non-Proprietary Information ' Limits Report Edwin I. Hatch Nuclear Plant Unit 1 Cycle 28 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 25 5.0 Operating Pressure Limits 33 6.0 PBDA Amplitude Setpoint 37 7.0 References 38 Version 2

~ *..-..~ .. *~~~~:~~::*

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprieta,.Y 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 Power-Dependent MCPR Operating Flexibility 10 Options 3-3 Power-Dependent Multiplier Flexibility Options 10 3-4 Rated-Power MCPR Operating Flexibility Options 11 4-1 LHGR Limits versus Peak Pellet Exposure 26 4-2 Flow-Dependent LHGR Operating Flexibility 26 Options 5-1 Pressure Dependent Operating Flexibility Options 34 5-2 Maximum Thermal Limit Ratios for Equipment In 35 Service Operation 5-3 Maximum Thermal Limit Ratios for EOC-RPT Out 35 of Service Operation 6-1 Licensed OPRM Setpoints 37 ii Version 2

Plant Hatch Core Operating Unit f Cycle 28 ** ** Non-Proprietary Information Limits Report FIGURES Figure No. Title Page 2-1A GE14C Flow-Dependent APLHGR 4 Multiplier (MAPFACF) versus Core Flow 2-18 GNF2 Flow-Dependent APLHGR Multiplier 5 (MAPFACF) versus Core Flow 2-2 APLHGR Limit versus Average Planar 6 Exposure 3-1 Flow-Dependent MCPR Limit (MCPRF) 12 versus Core Flow 3-2A Power-Dependent MCPR Limit (MCPRp) 13 versus Core Power from 24% to 45% of Rated Core Power 3-28 Power-Dependent MCPR Limit (MCPRp) 14 versus Core Power from 24% to 45% of Rated Core Power (Main Turbine Bypass System Inoperable and/or Main Turbine Pressure Regulator System Status in TLCO 3.3.13.c) 3-3A Power-Dependent MCPR Multiplier (KP) 15 versus Core Power 3-38 Power-Dependent MCPR Multiplier (Kp) 16 versus Core Power (Main Turbine Pressure Regulator System Status in TLCO 3.3.13.c) 3-4A-1 TLO MCPR Limits versus Average SCRAM 17 Time 3-4A-2 TLO MCPR Limits versus Average SCRAM 18 Time (EOC-RPT Out of Service) 3-4A-3 TLO MCPR Limits versus Average SCRAM 19 Time (Main Turbine Bypass System Inoperable) iii Version 2

'-'. ~::.

  • ~~ .. ~* .- .:-~-.:T* ....

Plant Hatch Core Operating unit 1: Cycle 28 Non-Proprietary Information ~- Limits Report Figure No. Title Page 3-4A-4 TLO MCPR Limits versus Average SCRAM 20 Time (EOC-RPT Out of Service and Main Turbine Bypass System Inoperable) 3-48-1 SLO MCPR Limits versus Average SCRAM 21 Time 3-48-2 SLO MCPR Limits versus Average SCRAM 22 Time (EOC-RPT Out of Service) 3-48-3 SLO MCPR Limits versus Average SCRAM 23 Time (Main Turbine Bypass System

  • Inoperable) 3-48-4 SLO MCPR Limits versus Average SCRAM 24 Time (EOC-RPT Out of Service and Main Turbine Bypass System Inoperable) 4-1A GE14C Flow-Dependent LHGR Multiplier 27 (LHGRFACF) versus Core Flow 4-18 GNF2 Flow-Dependent LHGR Multiplier 28 (LHGRFACF) versus Core Flow 4-1C GNF2 Flow-Dependent LHGR Multiplier 29 (LHGRFACF) versus Core Flow (Main Turbine Bypass System Inoperable) 4-2 Power-Dependent LHGR Multiplier 30 (LHGRFACp) versus Core Power 4-3A GE14C LHGR versus Peak Pellet 31 Exposure 4-38 GNF2 LHGR versus Peak Pellet Exposure 32 5-1 Licensed Regions of Operating Dome 36 Pressure versus Core Power iv Version 2

Plant Hatch Core Operating ..

Unit 1 Cycle 28 Non-Proprietary Information Limits Report

1.0 INTRODUCTION

The Core Operating Limits Report (COLR) for Plant Hatch Unit 1 Cycle 28 is prepared in accordance with the requirements of Technical Specification 5.6.5. The core operating limits presented herein were developed using NRG-approved methods (References 1 through 6). Results from the reload analyses for the fuel in Unit 1 Cycle 28 are documented in References 2 through 4.

The following core operating limits are included in this report:

a. Average Planar Linear Heat Generation Rate (APLHGR) - Technical Speeification 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 This report includes reduced thermal limit ratios which may be used in conjunction with the standard core operating limits to allow operation with dome pressure down to 40 psi below nominal. Also included in this report are the licensed scram setpoints for the Period Based 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 1 operation.

TABLE 1-1 Main Turbine Bypass System Operability System ... . *.'  : OperabilltY Requirement . .*

Main Turbine Bypass System Operable At least two bypass valves must be operable (Technical Specification 3.7.7) 1 Version 2

Plant Hatch Gore Operating Unit 1 Cycle 28 Non-Proprietwy Information Limits Report From a fuel thermal limits perspective, the following limitations are placed on Unit 1 operation.

TABLE 1-2 Equipment-Out-of-Service Limitations Equipment / Condition Limitation

  • CTP must be s; 2000 MWth Single-Loop Operation (SLO)

+/- 1O psi of nominal, as defined in OR Figure 5-1 Main Turbine Pressure Regulator System Status in TLCO 3.3.13.c 2 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 NOn-Proprietary Information Limits* Report

. ~~*

2.0 APLHGR LIMITS (Technical Specification 3.2.1)

For both two loop operation (TLO) and single loop operation (SLO), the APLHGR limit for 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
b. Figure 2-1 B forGNF2 fuel.

3 Version 2

  • ,'1; Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report 1 . 0 + - - - - + - - - - + - - - - t t - - - - - - -.....- - - - - -.....------..-------....- - - -......

'"ii:

0

~

~ D.9 - - - + - - 1 TLC t - - + - - - - - - + - ' - " - - - - + - - - - - - + - - - - - - + - - - - - - r - - - - - - - 1

~ 0.86 1--------+-------+-------...

ii

~ o.a-t-------T-------T-------Tt-,-----;--------r:~~~-r-------t-------1

!: SLO a::

~

~ 0.7+----+--~-+----+r-----+--~~+-~~-+--~-+-~~--1 Q)

"C c:

~0.6+-~~~-~~~-~~~--~~~-~~~-~-~-~---r-------1

~

~0

~ 0.5+--~-+----+----+T----+----+----+-----r-------1 0.4+----+----+----++----+----+-----r-----r-------1 30 40 50 5061 70 BO . 90 100 110 Core Flow(% of Rated)

Operating Conditions F SLO/TLO MAPFACi:

30:;; F:;; 61 TLO 0.86 61 < F TLO 1.00 30:;; F SLO 0.80 F = Percent of Rated Core Flow FIGURE 2-1A GE14C Flow-Dependent APLHGR Multiplier (MAPFACF) versus Core Flow 4 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report 1.o...,..______,._______...,..______...,..______...,..______...,..______,._______,._____----4

'"i!

(.)

~

~ 0.9+-~~~+-~~~+-~~~+-~~~+-~~~+-~~~+-~~~+-~~---1

§.

ii

~ o.a-i--------T-------;-------;-------;-------~~~~T-------T-------1

~ SLO 0:::

~

~ 0.?+-~~~+-~~~+-~~~+-~~~+-~~~+-~~~+-~~~+-~~---1

<C cQI "C

c:

~0.6+-~~~+-~~~+-~~~+-~~~+-~~~+-~~~+-~~~+-~~---1 21

~

0

~ 0.5+-~~~+-~-'-~+-~~~~~~~~~~~+-~~~~~~~+-~~---1 0.4+-~~~+-~~~~~~~~~~~~~~~+-~~~+-~~~+-~~---1 30 40 50 60 70 80 90 100 110 Core Flow (%of Rated)

Operating Conditions F SLO/TLO MAPFACi:

30 :SF TLO 1.00 30 :SF SLO 0.80 F = Percent of Rated Core Flow FIGURE 2-18 GNF2 Flow-Dependent APLHGR Multiplier (MAPFACF) versus Core Flow 5 Version 2

. . *. -: ~* _._

... *~ "' .":

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report 14.0 Average GE14C I I

' ~""

GNF2 Planar APLHGR 13.0 Exposure Limit (GWd/Sl) (kW/ft) 12.0 I GE14C I ~

0.00 12.82 14.51 19.13 12.82 12.82 11.0

"" ~

57.61 63.50 Average Planar Exposure 8.00 5.00 GNF2 APLHGR Limit g

3:

~

E

J a:::

~

_J 10.0

. 9.0 8.0

~

~

~

~ '-

a.

(GWd/Sl) (kW/ft) <(

~'\

0.00 13.78 7.0 17.15 13.78 ~

60.78 63.50 6.87 5.50 6.0 5.0

' l

\

4.0 a.a 5.o 10.0 15.o 20.0 25.o 3o.o 35.o 40.o 45.0 so.a 55.o so.a 65.o 7o.o Average Planar Exposure (GWd/ST)

FIGURE 2-2 APLHGR Limit versus Average Planar Exposure 6 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Re"port 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-RPT system status, operability of the main turbine bypass system, 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 Figure 3-1,
2) The power-dependent MCPR limit, MCPRp, as determined by Table 3-2.
b. For power;::: 45%, the greater of either:
1) MCPRF, as determined by Figure 3-1,
2) The product of the power-dependent multiplier, Kp, as determined by Table 3-3, and the rated-power OLMCPR, as determined by Table 3-4.

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

These limits apply to operation with vessel dome pressure within +/- 10 psi of nominal pressure, as defined by the Region I pressure band shown in Figure 5-1. With all equipment in service or with the EOC-RPT system out of service, operation with vessel dome pressure down to 40 psi below nominal is licensed provided the additional restrictions identified in Section 5.0 are applied with the MCPR operating limit defined in this section.

7 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report In the 3-4A and 3-48 figures, Option A scram time OLMCPRs correspond to -r; = 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 8 values correspond to -r; =0.0. For scram times between Option A and Option 8, the rated-power OLMCPR corresponds to"* If -r; has not been determined, Option A limits must be used.

The average scram time of the control rods, -r;, is defined as:

'tave - 1:9

-r; = 0, OR , whichever is greater.

... :..~ ' .. .: **.~* :. ; . '.. . :: : . :*: ;:'.:".: :'. ' .. ; . ,."" "* .

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

1/2 Ni

= µ + 1 .65

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

cr = 0.018 sec (standard deviation ofµ).

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

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

N; = number of active control rods measured in the i1h surveillance test.

'tave

= i=l where: 'ti = average scram time to notch 36 of all rods in the i1h surveillance test.

8 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report TABLE 3-1 Exposure Definitions

  • Ex.posure Label *
  • 9Y<:le Exposur,e . . . .. Definition *.

BOC Beginning of Cycle Exposure 0 MWd/ST First Middle of Cycle MOC1 EOR - 6283 MWd/ST Exposure

. Seconc:f.J\/1.!~dle qfCycl~

... . . '**" .MOC2 -* Exposure EOR - 4283 MWd/ST Projected end of rated power with all control rods out at rated EOR End of Rated Exposure core flow and rated feedwater temperature EOC End of Cycle Exposure Exposure at cycle shutdown 9 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report TABLE 3-2 Power-Dependent MCPR Operating Flexibility Options MCPRp from,~ 24% to < 45% Power _,

Equipment In or Out of Service EOC-RPT System Main Turbine Bypass Main Turbine Pressure Figure#

In Service System Operable* ReQulator System Status Yes/No Yes TLCO 3.3.13.a or b 3-2A Yes/No No TLCO 3.3.13.a orb 3-2B Yes/No Yes/No TLCO 3.3.13.c 3-2B

'* '.r ~*: ' ****** '," '"* ' * .. '***--*,,*-**** .:..- .... _: ___*...*..-. -* . ; _,_,*_

TABLE 3-3 Power-Dependent Multiplier Flexibility Options

, Kpfor Powe~~;45%

' 0 ot Rat~d-- _--

Equipment In or Out of Service EOC-RPT System Main Turbine Bypass Main Turbine Pressure Figure#

In Service System Operable* Regulator System Status Yes/No Yes/No TLCO 3.3.13.a or b 3-3A Yes/No Yes/No TLCO 3.3.13.c 3-3B

  • At least two bypass valves must be operable 10 Version 2

.._.t--*.. -..

Plant Hatch Core Operating

.. Unit 1 Cycle 213 Non-Proprietary Information Limits Report TABLE 3-4 Rated-Power MCPR Operating Flexibility Options

.Rated~power OLMCPRs '.

Equipment TLO SLO In/Out of Service Equipment In Service Figure 3-4A-1 Figure 3-4B-1

.
, EQC-RPT Out of Service .. "***** ,:Figur,e~.3-:4A:2 . ,*, ~**"*' .. . "*"'

. . . figure 3~4B:-2 ...

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

& Main Turbine Bypass Figure 3-4A-4 Figure 3-4B-4 System Inoperable Main Turbine Pressure Regulator System Status in Figure 3-4A-1 Figure 3-4B-1 TLCO 3.3.13.c Main Turbine Pressure Regulator System Status in Figure 3-4A-2 Figure 3-4B-2 TLCO 3.3.13.c

& EOC-RPT Out of Service Main Turbine Pressure Regulator System Status in TLCO 3.3.13.c Figure 3-4A-3 Figure 3-4B-3

& Main Turbine Bypass System Inoperable Main Turbine Pressure Regulator System Status in TLCO 3.3.13.c Figure 3-4A-4 Figure 3-4B-4

& EOC-RPT Out of Service

& Main Turbine Bypass System Inoperable 11 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report 1.5 Ci c..

0

~

~

E

J 1.4 a::

"'*****~

c..

0

,,.,,._ .. c:

  • e11 .. :~-/ ,::

"C c:

Cll 1.3

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c.

~

~

0 ii: ....._.._.....................................i 1.2 + - - - - - + - - - - - + - - - - _ _ , r - - - - - - t - - - - - + - - - - - + - - - - - + - - - - - 1 1.1.._----l----+-------lf------1----+-----1------1------1 30 40 50 60 70 80 90 100 110 Core Flow(% of Rated)

MCPRF{TLO) =A+ B*F MCPRF{SLO) =MCPRF{TLO) + 0.03 Flow A B 30::; F < 80 1.7294 -0.00598 80::; F < 90 1.4830 -0.00290 90::; F 1.2220 0.00000 F = Percent of Rated Core Flow FIGURE 3-1 Flow-Dependent MCPR Limit (MCPRF) versus Core Flow 12 Version 2

Plant Hatch Core Operati,ng Unit 1 Cycle 28 Non-Proprietary Information Limits Report

  • 1.6+-~~~-+~-'-~~+-~~~-+~~~~+-~~~-+~~~~+-~~~----1 24 27 28 30 33 36 39 42 45 Core Power(o/oofRated)

MCPRp(TLO) =A+ B*P MCPRp(SLO) = MCPRp(TLO) + 0.03 F p A B F:;:; 60 24:;:; p < 28 2.1900 0.00000 F > 60 24:;:; p < 28 3.3900 -0.03000 All 28:;:; p < 45 2.6671 -0.01882 P = Percent of Rated Core Power F = Percent of Rated Core Flow FIGURE 3-2A Power-Dependent MCPR Limit (MCPRp) versus Core Power

.from 24% to 45% of Rated Core Power 13 Version 2

Plant Hatch Core Operating

  • Unit 1 Cycle 28 Non-Proprietary Information Limits Report 2.8 -.-------...-----.-------...-----.-----~----~---~

1.6+----,--r-~--+-----r----,-+---,---+----,--+---,--,---t 24 27 28 30 33 36 39 42 45 Core Power("loofRated)

MCPRp(TLO) =A+ B*P MCPRp(SLO) =MCPRp(TLO) + 0.03 F p A B F:;; 60 24:;; p < 28 3.1000 -0.03250 F > 60 24:;; p < 28 3.3900 -0.03000 All 28:;; p < 45 2.6671 -0.01882 P = Percent of Rated Core Power F = Percent of Rated Core Flow FIGURE 3-28 Power-Dependent MCPR Limit (MCPRp) versus Core Power from 24% to 45% of Rated Core Power (Main Turbine Bypass System Inoperable and/or Main Turbine Pressure Regulator System Status in TLCO 3.3.13.c) 14 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report

~

Q)

°6.1.2+-~~+-~-...o+-~~+-~~---~~---~~-+-~~-+-~~-+-~~-+-~~-1-~~~

E

l a::

e;

" c:.

Q)

~

Q) c.

~ 1.1 t-~~+-~~+-~~-+-~~-+-~~-+-----'""""'d-~~--1-~~--1-~~--1-~~-+-~~~

Q)

=0 c..

50 55 60 65 70 75 80 85 90 "95 100 Core Power(% of Rated)

Kp =A+ B*P p A 8 45:;; p < 60 1.6700 -0.00867 60:;; p < 85 1.3708 -0.00368 85:;; p 1.3867 -0.00387 P =Percent of Rated Core Thermal Power FIGURE 3-3A Power-Dependent MCPR Multiplier (KP) versus Core Power 15 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report 1.o+--~~+-~~1--~--1~~-+~~-l-~~-+-~~-1-~~-+-~~-1-~~-l-~-3'1 45 50 55 60 65 70 75 80 85 90 95 100 Core Power(% of Rated)

KP= A+ B*P p A 8 45 s p < 60 1.5320 -0.00560 60 s p < 85 1.3808 -0.00308 85 s p 1.3867 -0.00387 P = Percent of Rated Core Therm al Power FIGURE 3-38 Power-Dependent MCPR Multiplier (KP) versus Core Power (Main Turbine Pressure Regulator System Status in TLCO 3.3.13.c) 16 Version 2

.*."\*

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report 1.66 1.66 1.64 1.64 1.62 1.62 1.60 1.60 1.58 1.58 1.56 1.56 1.54 1.54 I MOC2 -EOC I

- 1.52

  • e1.5o 0::: 1.48 ,____
i BOC -EOC -

- ----- - i..-----

1.52 1.50 E

i 1.48 0:::

~ .-~.

D..

f; 1.46 - (TLCO 3.3.13.c) u

.., 1 MOC1 - MOC2 I 1.46

!!!: 1.44 1.44

~

1.42 -~ 1.42

~

~

1.40 1.40 i--""""" I BOC -MOC1 1.38 1.38

~~

1.36

- -- ~

1.36 1.34 1.34 1.32 1.32 1.30 1.30 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

't Main Turbine Pressure OLMCPR(lLOl Exposure Range Regulator Status 't =0.0 't =1.0 BOC- MOC1 TLCO 3.3.13.a orb 1.31 1.42 MOC1 - MOC2 TLCO 3.3.13.a orb 1.38 1.49 MOC2-EOC TLCO 3.3.13.a orb 1.41 1.52 BOC-EOC TLCO 3.3.13.c 1.41 1.52 FIGURE 3-4A-1 TLO MCPR Limits versus Average SCRAM Time 17 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report 1.66 1.66 1.64 1.64 1.62 1.62 1.6a 1.6a I MOC2 -EOC 1.58 1.56

__,,,,.. 1.58 1.56

-~

1.54 1.52 -

- BOC -EOC ~~

~

~ --- 1.54 1.52

~

  • E1.5a
J 0:: 1.48 t1.46
!!: 1.44 (TLCO 3.3.13.c)

~

~*-*

~

~~

--- ............ I MOC1 - MOC2 1.5a E

. ;J.

1'.48 o::.**

1.46 0 D..

1.44

~I BOC -MOC1 1.42 1.42 1.4a 1.38 1.36


___,,,,.. ~

___,,,,,,.,. ....... ~ i.---

1.4a 1.38 1.36

.......---~

1.34 1.34 1.32 1.32 "*c'- ~

1.3a 1.3a a.a a.1 a.2 a.3 a.4 a.5 a.6 a.7 a.8 a.9 1.a

't Main Turbine Pressure OLMCPRnLo)

Exposure Range Regulator Status 't =0.0 't =1.0 BOC- MOC1 TLCO 3.3.13.a orb 1.33 1.46 MOC1 - MOC2 TLCO 3.3.13.a orb 1.40 1.53 MOC2- EOC TLCO 3.3.13.a orb 1.44 1.57 BOC-EOC .. TLCO 3.3.13.c 1.44 1.57 FIGURE 3-4A-2 TLO MCPR Limits versus Average SCRAM Time (EOC-RPT Out of Service) 18 Version 2

Plant Hatch ,,.. Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report 1.66 1.66 1.64 1.64 1.62 1.62 1.6a 1.6a 1.58 1.58 1.56 1.56 I MOC2 -EOC 1.54 1.54

- 1.52

- ---- 1.52

~ ~

  • E 1.5a - BOC -EOC

- 1.5a E

J - (TLCO. 3.3.13.c)
  • -* .. ~

~ ~-* :J 1.48 D:

'D: 1.48 '--

--- ~ I MOC1 - MOC2 fl.

f; 1.46 1.46 .U

~1.44

~

1.44

~

1.42 1.4a 1.38 1.36 I BOC -MOC1 1.42 1.4a 1.38 1.36 1.34 1.34 1.32 1.32 1.3a 1.3a a.a a.1 a.2 a.3 a.4 a.5 a.6 a.7 a.8 a.9 1.a t

Main Turbine Pressure OLMCPR(lLOl Exposure Range Regulator Status t = 0.0 t = 1.0 BOC- MOC1 TLCO 3.3.13.a orb 1.36 1.42 MOC1 - MOC2 TLCO 3.3.13.a orb 1.39 1.50 MOC2-EOC TLCO 3.3.13.a orb 1.43 1.54 BOC-EOC TLCO 3.3.13.c 1.43 .1.54 FIGURE 3-4A-3 TLO MCPR Limits versus Average SCRAM Time (Main Turbine Bypass System Inoperable) 19 Version 2

Piant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report

~*

1.66 1.66 1.64 1.64 I MOC2 -EOC 1.62 1.62 1.60 1.60 1.58 1.56 1.54 ,____

1.52 ,____

BOC - EOC (TLCO 3.3.13.c)

........- -- ~ ----- -- -- --- --- --

I MOC1 - MOC2

~

1.58 1.56 1.54 1.52

  • ~

E 1.5o

~ i.----- 1.50 E

  • ~

-~ ., *- ~

~ 1.48

~ ,. . *~

.*.'I.

  • r ~* ~*

{48 .

Cl.

f; 1.46 1 BOC -MOC1 1.46 u

  • ~ i----- i.-----  :!!:
!!: 1.44 1.44

~

1.42 ...... 1.42 1.40 1.40 i------

1.38 ,_...... 1.38 1.36 1.34 1.32


1.36 1.34 1.32 1.30 1.30 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 t

Main Turbine Pressure OLMCPRclloJ Exposure Range Regulator Status t =0.0 t =1.0 BOC- MOC1 TLCO 3.3.13.a orb 1.36 1.50 MOC1 - MOC2 TLCO 3.3.13.a orb 1.42 1.56 MOC2- EOC TLCO 3.3.13.a orb 1.47 1.61 BOC-EOG TLCO 3.3.13.c 1.47 . 1.6*1 FIGURE 3-4A-4 TLO MCPR Limits versus Average SCRAM Time (EOC-RPT Out of Service and Main Turbine Bypass System Inoperable) 20 Version 2

-*-**-~  ;*:*

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report 1.66 1.66 1.64 1.64 1.62 1.62 1.60 1.60 1.58 1.58 1.56 MOC2 -EOC 1.56 I

1.54 1.54

~Ti!8 1.52

  • E 1.5o t-BOC -EOC

..__ (TLCO 3.3.13.c)

. *~*

-~

. --- ..... .,, . JMOC1 ~

1.52 1.50

~

E MQC2. "'f.'4e*~*-**.. *****

a.

f; 1.46 ***** ..* , ...... I ~* .. 1.46 0

- ~-

~1.44 1.44 1.42 I BOC -MOC1 I 1.42 1.40 *1 ..40 1.38 1.38 1.36 1.36 1.34 1.34 1.32 1.32 1.30 1.30 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Main Turbine Pressure OLMCPRcsLO)

Exposure Range Regulator Status 't =0.0 't =1.0 BOC- MOC1 TLCO 3.3.13.a orb 1.45 1.45 MOC1 - MOC2 TLCO 3. 3.13.a or b 1.45 1.52 MOC2- EOC TLCO 3.3.13.a orb 1.45 1.55 BOC-EOC TLCO 3.3.13.c 1.45 1.55 FIGURE 3-48-1 SLO MCPR Limits versus Average SCRAM Time 21 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report 1.66 1.66 1.64 1.64 1.62 1.62 I

1.60 MOC2 -EOC 1.60 1.58


- .- 1.58 1.56 1.54 - BOC - EOC - - - --

~ ~ ......--- 1.56 1.54 L.........--- ~ 1

- MOC1 - MOC2

  • e...

1.52 (TLCO 3.3.13.c) 1.52

i 1.50 0:: 1.48 f; 1.46

~~

--- ----- i----

i.....---

1......--- - I BOC -MOC1 I

I 1.5o

~

E

J 1.48 0::

ll..

1.46 u

. a: *;:*4;* 1.44 a:

1.42 1.42 1.40 1.40 1.38 1.38 1.36 1.36 1.34 1.34 1.32 1.32 1.30 1.30 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 t

Main Turbine Pressure OLMCPR1sLo)

Exposure Range Regulator Status 't =0.0 't =1.0 BOC- MOC1 TLCO 3.3.13.a orb 1.45 1.49 MOC1 - MOC2 TLCO 3.3.13.a orb 1.45 1.56 MOC2- EOC TLCO 3.3.13.a orb 1.47 1.60 BOC-EOC TLCO 3.3.13.c 1.47 1.60 FIGURE 3-48-2 SLO MCPR Limits versus Average SCRAM Time (EOC-RPT Out of Service) 22 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information . Limits Report 1.66 1.66 1.64 1.64 1.62 1.62 1.60 1.60 1.58 MOC2 -EOC I 1.58 I

1.56 1.54

- ~

1.56 1.54

~

1.52 - (TLCO BOC -EOC 3.3.13.c) 1.52

~

  • E 1.50 - -- .- - MOC2 I 1.5o E

. .. ::i .. .. -------- ... . .... 1 MOC1 :J a: 1.48 *.~

i----

1.48 a:

ll..

~1.46 ... 1.46 0 al

ii: 1.44 1.44 1.42 I BOC -MOC1 I 1.42 1.40 1.40 1.38 1.38 1.36 1.36 1.34 1.34 1.32 1.32 1.30 1.30 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

't Main Turbine Pressure OLMCPRcsLO)

Exposure Range Regulator Status 't = 0.0 't = 1.0 BOC- MOC1 TLCO 3.3.13.a orb 1.45 1.45 MOC1 - MOC2 TLCO 3.3.13.a orb 1.45 1.53 MOC2- EOC TLCO 3.3.13.a orb 1.46 1.57 BOC-EOC TLCO 3.3.13.c 1.46 1.57 FIGURE 3-48-3 SLO MCPR Limits versus Average SCRAM Time (Main Turbine Bypass System Inoperable) 23 Version 2

Piant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report 1.66 1.66 I MOC2 -EOC [

1.64 1.62

- -- .,.,,,.,,,.-__,,,,. 1.64 1.62 1.60 1.58 ,._

BOC -EOC ___. ,,,,,,,,_ ----

~

1.60 1.58 1.56 (TLCO 3.3.13.c) 1.56 I MOC1

- MOC2 1.54

~ __,.,,,,- - 1.54 1.52

  • e1.5o

. ***::i,. **- ..

. 0::1.48 i31:46

~

    • -*** ~

.. I BOC -MOC1 I 1.52 1.5o 1.48 1.46 E

i a::

a.

u

!: 1.44 - .. - .. c 1.44 1.42 1.42 1.40 1.40 1.38 1.38 1.36 1.36 1.34 1.34 1.32 1.32 1.30 1.30 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 t

Main Turbine Pressure OLMCPR(SLO)

Exposure Range Regulator Status t =0.0 t =1.0 BOC- MOC1 TLCO 3.3.13.a orb 1.45 1.53 MOC1 - MOC2 TLCO 3.3.13.a orb 1.45 1.59 MOC2- EOC TLCO 3. 3.13.a or b 1.50 1.64 BOC-EOC TLCO 3.3.13.c 1.50 1.64 FIGURE 3-48-4 SLO MCPR Limits versus Average SCRAM Time (EOC-RPT Out of Service and Main Turbine Bypass System Inoperable) 24 Version 2

' -;:.~.

~.... **.

For both two loop operation (TLO) and single loop operation (SLO), the LHGR limit for each six inch axial segment of each fuel rod in the core is the applica.ble 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,
c. The power-dependent multiplier, LHGRFACp, as determined by Figure 4-2.

Table 4-1 shows the exposure-dependent LHGR limits for all fuel types in the. core, as a.. . ,,c~:

function of initial gadolinium concentration in a six inch segment of a fuel rod. For exposures between the values shown in Table 4-1, the LHGR limit is based on linear interpolation. For illustration purposes, Figures 4-3A and 4-38 show the LHGR limits for fuel segments with the lowest (U0 2) and highest (U02+Gd203) initial Gd concentrations.

These limits apply to operation with vessel dome pressure within +/- 10 psi of nominal pressure, as defined by the Region I pressure band shown in Figure 5-1. With all equipment in service or with the EOC-RPT system out of service, operation with vessel dome pressure down to 40 psi below nominal is licensed provided the additional restrictions identified in Section 5.0 are applied with the LHGR operating limit defined in this section.

25 Version 2

Plant Hatch Core Operating

  • Unit 1 Cycle 28 Non-Propriela,.Y Information Limits Report TABLE 4-1 LHGR Limits versus Peak Pellet Exposure Fuel Rod Pellet Pellet Pellet Pellet Pellet Pellet Type Segment Maximum Exposure Power. Exposure Power Exposure Initial Power Knee 1 Knee 2 Knee 2 EOL EOL Wt-% Gd203 (kW/ft) (GWd/ST) (kW/ft) (GyYd/ST) (kW/ft) (GWd/ST)

GE14C ((

. ~ - .... ...

. 11 .

GNF2 rr .. ~ ,, .. **- ****- - .... - - ........

11 EOL = End of Life (maximum licensed pellet exposure)

TABLE 4-2 Flow-Dependent LHGR Operating Flexibility Options

' - ~LHGRFAC"

' . .F I*,.

Equipment In or Out of Service EOC-RPT Fuel Type Main Turbine Bypass Main Turbine Pressure Figure#

System In System Operable* Regulator System Status Service GE14C Yes/No Yes/No TLCO 3.3.13.a or b or c 4-1A GNF2 Yes/No Yes TLCO 3.3.13.a or b or c . 4-18 GNF2 Yes/No No TLCO 3.3.13.a or b or c 4-1C

  • At least two bypass valves must be operable 26 Version 2

.........'./'.

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report "ii:

0

<C

~ 0.9

~

1.0 I TLO/SLO I

~ ~

/

v d.

CIJ /

'a 0.8 -

~v E

I n:: ./

~ 0.7 SLO

..J 1:

CIJ V" .......*.**.

~

~0.6 21

~

0 u::: 0.5 0.4 -

30 40 50 60 70 80 90 100 110 Core Flow (%of Rated)

LHGRFACF= A+ B*F Operating Conditions Values of Variables F TLO I SLO A B 30.00 :5 F < 50.70 TLO I SLO 0.4574 0.006758 50.70 :5 F < 80.29 TLO 0.4574 0.006758 50.70:5F SLO 0.8000 0.000000 80.29 :5 F TLO 1.0000 0.000000 F = Percent of Rated Core Flow FIGURE 4-1A GE14C Flow-Dependent LHGR Multiplier (LHGRFACF) versus Core Flow 27 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report 1.0

'i::

(.)

<(

12 0.9

~ I TLO/SLO I

~ ~

/

/

=-...

QI /

y

'a 0.8 ,,

0::

~ 0.7 SLO

...J ir

  • c. ... . .

/ .

... ., ~ c QI "tl c:

~0.6

~

~

/

0 u: 0.5 0.4 30 40 50 60 70 80 90 100 110 Core Flow (%ofRated)

LHGRFACF= A+ B*F Operating Conditions Values of Variables F TLC I SLO A B 30.0::; F < 50.0 TLO I SLO 0.2000 0.01190 50.0::; F'< 50.7 TLO I SLO 0.4567 0.00677 50.7::; F < 80.0 TLO 0.4567 0.00677 50.7::; F SLO 0.8000 0.00000 80.0 ::; F < 90.0 TLO 0.9820 0.00020 90.0::; F TLO 1.0000 0.00000 F = Percent of Rated Core Flow FIGURE 4-18 GNF2 Flow-Dependent LHGR Multiplier (LHGRFACF) versus Core Flow 28 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report

'ii:

(.)

<(

~0.9+------1-----+----+----'--l~--,,~--l-----+----t------t

~

Q)

'a_0.8+------!-----+-----t.11~~~1--~~--1-~~~~~~~+--~~--1 E

I 0:::

~0.7+-----t--+----+-------+------<>------+-----+--t

...I

  • t: .*..

Q)

"E

[ 0.6+------!-"""'~--+----+----'--lf------1-----+--_:....;""----'t------t

~

~

~0.5+-----+------+----+-----t-----+-----+----i-----;

0.4+-----+-----t----+-----t-----+-----+----i-----;

30 40 50 60 70 80 90 100 110 Core Flow (%of Rated)

LHGRFACF =A+ B*F Qperatina Conditions Values of Variables F TLO I SLO A B 30.0::; F < 50.0 SLO I TLO 0.380 0.0049

  • 50:0::; F < 60.0 SLO I TLO -0.210 0.0167 60.0::; F < 61.2 SLO I TLO 0.390 0.0067 61.2::; F SLO 0.800 0.0000 61.2::; F < 90.0 TLO 0.390 0.0067 90.0::; F < 100.0 TLO 0.930 0.0007 100.0::; F TLO 1.000 0.0000 F = Percent of Rated Core Flow FIGURE 4-1C GNF2 Flow-Dependent LHGR Multiplier (LHGRFACF) versus Core Flow (Main Turbine Bypass System Inoperable) 29 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report 1.1 0: 1.0 0 ,,,,,,,,,. ~

~

Cl ~

~

5 ~

0.9 Ci.

i 0.8 s 60% Core Flow a::

.... g. ...... / ~,,,,,,,,,. **'****-*.-* .. .. .*:.:;

,,,,_.~ --

c 0.7 Cll "C

r::

Cll c.

~ 0.6

~

Cll

~- ~ .._ -I ll..

0.5 > 60% Core Flow I 0.4

~ ~ ~ ~ ~ ~ ~ m ~ w M ~ n n w M M m oo 100 Core Power(o/oofRated)

LHGRFACp= A+ B*P Operating Conditions Values of Variables p F A B 24 s p < 28 > 60 0.5050 0.001250 24 s p < 28 s 60 0.4150 0.005000 28 s p All 0.4776 0.005224 P = Percent of Rated Core Therm al Power F = Percent of Rated Core Flow FIGURE 4-2 Power-Dependent LHGR Multiplier (LHGRFACp) versus Core Power 30 Version 2

Plant Hatch *~

.,. .... :i,. Core Operating Unit 1 Cycle 2a Non-Proprietary Information Limits Report

((

))

FIGURE 4-3A GE14C LHGR versus Peak Pellet Exposure 31 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report

((

))

FIGURE 4-38 GNF2 LHGR versus Peak Pellet Exposure 32 Version 2

.,,, Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report 5.0 OPERA TING PRESSURE LIMITS For both two loop operation (TLO) and single loop operation (SLO), reactor dome pressure must be maintained within the licensed pressure bands defined by Figure 5-1.

For operation in each of these regions, the following restrictions apply:

a. For Region I operation:

The core operating limits from Sections 2.0 through 4.0 are applicable.

b. For Region II and Region Ill operation: . * *
1) The OPRM System must be operable
2) The core operating limits from Sections 2.0 are applicable
3) The MFLCPR and MFLPD thermal limit ratios must remain below the maximum values determined by Table 5-1.

The MFLCPR and MFLPD thermal limit ratios are defined in terms of the core operating limits defined in Section 3.0 and Section 4.0.

The MFLCPR thermal limit ratio is the most limiting (maximum) value of the Fraction of Limiting Critical Power Ratio (FLCPR) in the core. The FLCPR is defined for each fuel assembly in the core as:

MCPRumit FLCPR =

Fuel Assembly Minimum Critical Power Ratio where: MCPRumit = MCPR operating limit defined in Section 3.0 33 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report

  • .. ~

-* ~;;"*" ~

The MFLPD thermal limit ratio is the most limiting (maximum) value of the Fraction of Limiting Power Density (FLPD) in the core. The FLPD is defined for each six inch axial segment of each fuel rod in the core as:

Peak kW/ft power generated in a fuel rod segment FLPD = LHGRumit where: LHGRumit = LHGR operating limit defined in Section 4.0 The licensed equipment conditions for operation with dome pressures in Region II and Region Ill of Figure 5-1 are ~~fined in Tabl_e 5-1. --"-'- ____ -"-'"-'-' _,. **---*-" __

TABLE 5-1 Pressure Dependent Operating Flexibility Options

    • . -Reduced'-Preisure Operatio*r.* TflermafL:imit.Ratios ffom-~*-24.o/o_fo-:~100% Power ~-:. '

Equipment In or Out of Service Main Turbine Pressure Table#

EOC-RPT System Main Turbine By1;1ass Regulator S~stem In Service S~stem O[:!erable*

Status Yes Yes TLCO 3.3.13.a or b 5-2 No Yes TLCO 3.3.13.a or b 5-3 Flexibility Option Yes/No No TLCO 3.3.13.a or b Not Licensed Flexibility Option Yes/No Yes/No TLCO 3.3.13.c Not Licensed

  • At least two bypass valves must be operable 34 Version 2

Plant Hatch Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report TABLE 5-2 Maximum Thermal Limit Ratios for Equipment In Service Operation Dome Pressure Band from;Figure 5-1 '

Limit Ratio Region I Region II Region Ill MFLCPR 1.00 1.00 0.92 MFLPD (CP > 28%) 1.00 0.93 0.83 MFLPD (CP s 28%) 1.00 0.85 0.83 GP = Percent of Rated Core Power TABLE 5-3 Maximum Thermal Limit Ratios for EOC-RPT Out of Service Operation Dome Pressure Band from Figure 5-1. .*?

Limit Ratio Region I Region II Region Ill MFLCPR 1.00 1.00 0.90 MFLPD (CP > 28%) 1.00 0.93 0.83 MFLPD (CP s 28%) 1.00 0.85 0.83 GP = Percent of Rated Core Power 35 Version 2

Plant Hatch Core Operating Unit 1 C'lc;le.?8 Non-Proprietary Information Limits Report

.106M _ l==!:+/-:==l:::===i::=:~=:::+/-==+/-=:=+/-::==l==:::i:==::::l==+/-==+/-==+/-==+/-:==l:::===l==:i 1058.0 1058.0 1040 .0 Ci 1020 .0 c.

~

l 1000 .0 VI VI

~

a..

~ 980 .0 0

0 920 .0 20 :25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 24 Core Power (% of Rated)

P =A + B*(CP) + C*(CP) 2 Dome Pressure Curves Core Power A B c Nominal Dome Pressure (Pnom) 24 :::; CP :::; 100 958 .30 0.300 0.0057 Region I Upper Boun dary (Pnom+10) 24 :::; CP :::; 100 968 .30 0. 300 0.0057 Region I Lower Boundary (Pnom-10) 24 :::; CP S 100 948 .30 0.300 0.0057 Region II Lower Boundary (Pnom-20) 24 :::; CP :::; 100 938 .30 0.300 0.0057 Region Ill Lower Boundary (Pnom-4o) 24 S CP S 100 918 .30 0.300 0.0057 GP = Percent of Rated Core Power P =Reactor Dome Pressure (psig)

FIGURE 5-1 Licensed Regions of Operating Dome Pressure versus Core Power 36 Version 2

Plant Hatch Core Oper§!ting Unit 1 Cycle 28 Non-Proprietary Information Limits Report 6.0 PBDA AMPLITUDE. SETPOINT The amplitude trip setpoint in the Period Based Detection Algorithm in the OPRM system must be set equal to one of the licensed values reported in Table 6-1. This applies to instruments 1C51 K615 A, B, C, and D.

TABLE 6-1 Licensed OPRM Setpoints OPRM Setooint 1.11 1.15 37 Version 2

Plant Hatch ~- . ' ..

Core Operating Unit 1 Cycle 28 Non-Proprietary Information Limits Report

7.0 REFERENCES

1. NEDE-24011-P-A-22, "General Electric Standard Application for Reactor Fuel,"

November 2015, a,nd the US Supplement, NEDE-24011-P-A-22-US, November 2015.

2. Global Nuclear Fuel Document 003N2016-SRLR, "Supplemental Reload Licensing Report for Hatch 1, Reload 27 Cycle 28," Revision 0, November 2015.
3. Global Nuclear Fuel Document 003N2033-FBIR, "Fuel Bundle Information Report for

.H~tch 1,13elqad 27. Cycle 2§,_R~yisjgn_O, ~()V~ll]b~r ?0_15.

- 4. SNC Nuclear Fuel Document NFD-H-15-120 'iHatch~1 Cycle 28 Reload Licensing Analysis Report," Version 2, April 2017.

5. Global Nuclear Fuel Document NEDC-32868P, "GE14 Compliance with Amendment 22 of NEDE-24011-P-A (GESTAR II)," Revision 5, May 2013.
6. Global Nuclear Fuel Document NEDC-33270P, "GNF2 Advantage Generic Compliance with NEDE-24011-P-A (GESTAR II)," Revision 5, May 2013.

38 Version 2