ML21109A038

8 to Updated Final Safety Analysis Report, Chapter 6, Core Standby Cooling Systems, Table of Contents

ML21109A038
Person / Time
Site:	Peach Bottom
Issue date:	04/08/2021
From:	Exelon Generation Co
To:	Office of Nuclear Reactor Regulation
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PBAPS UFSAR SECTION 6.0 - CORE STANDBY COOLING SYSTEMS TABLE OF CONTENTS SECTION TITLE 6.1 SAFETY OBJECTIVE 6.2 SAFETY DESIGN BASIS 6.3

SUMMARY

DESCRIPTION

6.4 DESCRIPTION

6.4.1 High-Pressure Coolant Injection System 6.4.2 Automatic Depressurization System 6.4.3 Core Spray System 6.4.4 Low-Pressure Coolant Injection 6.4.5 Core Standby Cooling System NPSH 6.4.6 Gas Management Program 6.5 SAFETY EVALUATION 6.5.1 Summary 6.5.2 Analysis Models 6.5.3 Individual System Adequacy 6.5.3.1 High-Pressure Coolant Injection System 6.5.3.2 Automatic Depressurization System 6.5.3.3 Core Spray System 6.5.3.4 Low-Pressure Coolant Injection System 6.5.4 Integrated Operation of Core Standby Cooling Systems 6.6 INSPECTION AND TESTING 6.7 CONFORMANCE OF PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 EMERGENCY CORE COOLING SYSTEMS TO AEC/NRC INTERIM ACCEPTANCE CRITERIA FOR LIGHT WATER REACTORS 6.7.1 Introduction 6.7.2 Request for Additional Information 6.7.3 Additional Information Response 6.7.4 Summary 6.7.5 Effect of Revised Core Design on Emergency Core Cooling System's Analysis CHAPTER 06 6-i REV. 26, APRIL 2017

PBAPS UFSAR SECTION 6.0 - CORE STANDBY COOLING SYSTEMS LIST OF TABLES TABLE TITLE 6.3.1 Core Standby Cooling Systems Equipment Design Data Summary 6.7.1 Peak Clad Temperatures CHAPTER 06 6-ii REV. 26, APRIL 2017

PBAPS UFSAR SECTION 6.0 - CORE STANDBY COOLING SYSTEMS LIST OF FIGURES FIGURE TITLE 6.3.1 CSCS's Performance Capability Chart 6.4.1 Deleted 6.4.2 Deleted 6.5.1 Peak Cladding Temperature versus Time, Design Basis Accident Break.

6.5.2 Water Level in Hot and Average Channel vs Time, Design Basis Accident Break.

6.5.3 Reactor Pressure versus Time, Design Basis Accident Break.

6.5.4 Peak Cladding Temperature versus Time, 80% Design Basis Accident Break.

6.5.5 Water Level in Hot and Average Channel vs Time, 80%

Design Basis Accident Break.

6.5.6 Reactor Pressure versus Time, 80% Design Basis Accident Break.

6.5.7 Peak Cladding Temperature versus Time, 60% Design Basis Accident Break.

6.5.8 Water Level in Hot and Average Channel vs Time, 60%

Design Basis Accident Break.

6.5.9 Deleted.

6.5.10 Deleted.

6.5.11 Deleted.

6.5.12 Deleted.

6.7.1 Peak Clad Temperature Versus Break Area, Two Core Spray Systems, AEC/NRC Assumptions CHAPTER 06 6-iii REV. 26, APRIL 2017

PBAPS UFSAR LIST OF FIGURES (cont'd)

FIGURE TITLE 6.7.2 Cladding Temperature Versus Time, Two Core Spray Systems Plus ADS, AEC/NRC Assumptions, .02-Sq Ft Break 6.7.3 Cladding Temperature Versus Time, Two Core Spray Systems Plus ADS, AEC/NRC Assumptions, .05-Sq Ft Break 6.7.4 Design Basis Accident, Two Core Spray Systems, AEC/NRC Assumptions 6.7.5 Core Flow Following Design Basis Accident Versus Time 6.7.6 Heat Transfer Coefficient Versus Time, Two Core Spray Systems Plus ADS, AEC/NRC Assumptions, .02-Sq Ft Break 6.7.7 Heat Transfer Coefficient Versus Time, Two Core Spray Systems Plus ADS, AEC/NRC Assumptions, .05-Sq Ft Break 6.7.8 Heat Transfer Coefficient Versus Time, Two Core Spray Systems, AEC/NRC Assumptions, Design Basis Accident 6.7.9 Reactor Pressure Vessel Water Level Versus Time, Two Core Spray Systems Plus ADS, AEC/NRC Assumptions, .02-Sq Ft Break 6.7.1 Reactor Pressure Vessel Water Level Versus Time, Two Core Spray Systems Plus ADS, AEC/NRC Assumptions, .05-Sq Ft Break 6.7.11 Reactor Pressure Vessel Water Level Versus Time, Two Core Spray Systems, AEC/NRC Assumptions, Design Basis Accident 6.7.12 Minimum Critical Heat Flux Ratio Versus Time Following a Design Basis Accident 6.7.13 Peak Clad Temperature Versus Time, 1,000 MWd/T Exposure, Two Core Spray Systems, AEC/NRC Assumptions, .05-Sq Ft Break CHAPTER 06 6-iv REV. 26, APRIL 2017

PBAPS UFSAR LIST OF FIGURES (cont'd)

FIGURE TITLE 6.7.14 Peak Clad Temperature Versus Time, 10,000 MWd/T Exposure, Two Core Spray Systems, AEC/NRC Assumptions, .05-Sq Ft Break 6.7.15 Peak Clad Temperature Versus Time, 25,000 MWd/T Exposure, Two Core Spray Systems, AEC/NRC Assumptions, .05-Sq Ft Break 6.7.16 Peak Clad Temperature Versus Time, 1,000 MWd/T Exposure, Two Core Spray Systems, AEC/NRC Assumptions, Design Basis Accident 6.7.17 Peak Clad Temperature Versus Time, 10,000 MWd/T Exposure, Two Core Spray Systems, AEC/NRC Assumptions, Design Basis Accident 6.7.18 Peak Clad Temperature Versus Time, 25,000 MWd/T Exposure, Two Core Spray Systems, AEC/NRC Assumptions, Design Basis Accident 6.7.18a Peaking Factor Study, Effect of Exposure on Maximum Cladding Temperature for Peach Bottom Units 2 and 3 6.7.19 Power Generation Following a Design Basis LOCA 6.7.20 Quality Versus Time for the Design Basis Accident CHAPTER 06 6-v REV. 26, APRIL 2017