Table of Contents

Introduction

Foreword

Members

Chapter 1 General

1. History of Nuclear Power Plant Development 1-1

2. Experiences in Nuclear Power Generation and Safety Research 1-4

3. Comparison of Schemes of Nuclear and Thermal Power Generation 1-7

1. Effective Reactor Fuel Loading 1-7

2. Reactor Self-Regulation Characteristics 1-7

3. Reactor Decay Heat 1-8

4. Confinement of FPs 1-8

5. Reactor Steam Conditions 1-8

4. Safety Design Principles for NPPs 1-9

1. Prevention of Occurrence of Abnormal Conditions (Level 1) 1-9

2. Prevention of Expansion of an Abnormal Event (Level 2) 1-10

3. Prevention of Abnormal Release of Radioactive Materials and Mitigation of Consequence (Level 3) 1-10

5. 0 utline of Laws, Regulations and the Regulatory Framework 1-11

1. Domestic Framework 1-11

2. IAEA Safety Standards 1-13

Chapter 2 Systems of BWR Nuclear Power Plants

1. General Design Philosophy 2-1

   1. Fuel Rods - 2-1

   2. Reactor Core 2-1

   3. Reactor Coolant Pressure Boundary 2-2

   4. Engineered Safety Features 2-3

   5. Instrumentation and Control System 2-3

   6. Other Systems 2-4

2. Plant Layout 2-5

   1. Plot Plan 2-5

   2. Main Buildings and Auxiliary Buildings 2-6

3. Nuclear Reactor and Core 2-17

   1. Fuel Rod and Fuel Assembly 2-17

   2. Reactor and Reactor Core 2-22

4. Primary Coolant System 2-37

   1. System Summary 2-37

   2. Key Components 2-40

5. Turbine System 2-47

   1. System Summary 2-47

   2. Main Turbine System and Auxiliary Equipment 2-48

   3. Main Steam System and Condensate Feed Water System 2-51

6. Instrumentation and Control System 2-57

   1. Reactor Instrumentation and Control System 2-57

   2. Main Control Room 2-67

   3. Process Instrumentation System 2-74

7. Engineered Safety Features 2-79

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1. Design Policy of Engineered Safety Features 2-79

2. Emergency Core Cooling System (ECCS) 2-81

3. Reactor Containment Facility 2-87

1. Reactor Auxiliary Systems 2-92

   1. Residual Heat Removal (RHE) System 2-92

   2. Reactor Core Isolation Cooling (RCIC) System 2-94

   3. Reactor Water Cleanup (CUW) System 2-96

   4. Fuel Pool Cooling and Cleanup (FPC) System 2-97

   5. Reactor Building Cooling Water (RCW) System and Reactor Building Cooling Seawater (RCWS) System 2-100

   6. Fuel Handling and Storage System 2-101

2. Radioactive Waste Treatment Systems 2-102

   1. Gaseous Waste Treatment System 2-102

   2. liquid Waste Treatment System 2-103

   3. Solid Waste Treatment System 2-105

3. Electrical System 2-107

   1. Main Generator and Auxiliaries 2-107

   2. Major Transformers and Switchyard System 2-108

   3. Plant Auxiliary Power System 2-108

4. Plant Auxiliary Systems 2-111

   1. Plant Water System 2-111

   2. Auxiliary Steam System (House Boiler System) 2-111

   3. Compressed Air Supply System 2-112

   4. Heating, Ventilating and Air Conditioning (HVAC) System 2-113

   5. Fire Protection System 2-117

5. Advanced BWR (ABWR) 2-118

   1. Design Principles 2-118

   2. Plant Configuration 2-119

   3. Enhanced Safety 2-123

   4. Enhanced Operability and Maneuverability 2-127

Chapter 3 Systems of PWR Nuclear Power Plants

1. General Design Philosophy 3-1

1. Fuel Rods 3-1

2. Reactor Core 3-1

3. Reactor Coolant Pressure Boundary 3-2

4. Engineered Safeguard Systems 3-2

5. Instrumentation and Control System 3-3

6. Other Systems 34

2. Plant Layout 3-5

1. Plot Plan 3-5

2. Equipment Arrangement 3-7

3. Plant Layout Considerations 3-10

   3. Hie Nuclear Reactor and Reactor Core 3-16

      1. Fuel Rods and Fuel Assemblies 3-16

      2. Reactor and Reactor Core 3-20

   4. Reactor Coolant System 3-34

      1. Outline 3-34

      2. Main Components 3-35

   5. Turbine System 348

      1. Outline 348

      2. Main Turbine and Its Appurtenances 348

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3. Main Steam System 3-53

4. Condensate, Feed water System and Other Related Systems 3-54

3. Instrumentation and Control System 3-59

   1. Reactor Instru mentation and Control System 3-59

   2. Main Control Room 3-75

   3. Process Instrumentation System 3-79

   4. Radiation Monitoring System 3-79

4. Engineered Safeguard Systems 3-82

   1. Systems and Tlieir Functions 3-82

   2. Emergency Core Cooling System (ECCS) 3-83

   3. Reactor Containment Facility 3-87

   4. Containment Spray System 3-90

   5. Annulus Air Clean-up System 3-92

   6. Safety Component Room Air Clean-up System 3-93

5. Reactor Auxiliary Systems 3-95

   1. Chemical and Volume Control System (CVCS) 3-95

   2. Residual Heat Removal System (RHRS) 3-98

   3. Component Cooling Water System (CCWS) 3-100

   4. Sea Water System (SWS) 3-102

   5. Spent Fuel Pit Cooling and Clean-up System 3-102

   6. Fuel Handling System 3-103

6. Radioactive Waste Disposal System 3-105

   1. Gaseous Waste Disposal System 3-105

   2. liquid Waste Disposal System 3-107

   3. Solid Waste Disposal System 3-110

7. Electrical Systems 3-114

   1. Main Generators and Appurtenances 3-114

   2. Major Transformers and Transmission System 3-115

   3. Plant Auxiliary Power Supply Systems 3-116

8. Plant Auxiliary Systems 3-120

   1. Water Supply and Treatment System 3-120

   2. Auxiliary Steam System 3-120

   3. Compressed Air Systems 3-121

   4. Heating, Ventilating and Air Conditioning Systems 3-123

   5. Fire Protection System 3-126

9. Advanced Pressurized Water Reactor (APWR) 3-128

   1. Objectives of Design and Distinctive Features 3-128

   2. Plant Design 3-129

   3. Conclusion 3-137

Chapter 4 Operation and Maintenance of BWR Plants

1. Plant Operation 4-2

1. Plant Startup 4-2

2. Normal Plant Operation 4-7

3. Plant Shutdown 4-10

2. Plant Maintenance 4-12

1. Concept of Maintenance Management 4-12

2. Periodic Inspections and Licensee’s Periodic Inspections 4-13

3. Procedure and Work Schedule of Periodic Inspections 4-15

4. In-service Inspections (TSIs) 4-23

5. Checks and Maintenance during Plant Operation 4-24

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