IAEA Specification Rev. 0 Small Integral PWR Basic Principles Simulator Dated 20 May 2015 Technical Specification for a Small Integral Pressurised Water Reactor Basic Principles Simulator Nuclear Power Technology Development Section (NPTDS) Page 1 of 95 IAEA Specification Rev. 0 Small Integral PWR Basic Principles Simulator Dated 20 May 2015 EXECUTIVE SUMMARY The IAEA maintains a suite of basic principles simulators for nuclear power plants that are used for educational purposes. Upon request, these are freely distributed to its Member States and used on personal computers to aid in the understanding of reactor plant fundamentals, operational characteristics, and various approaches to reactor designs. There is continuing growth in global interest in the development of small modular reactor (SMR) designs and technologies. One variety of reactors that is being developed in several countries is the small integral pressurised water reactor (iPWR). In this design, primary circuit components are located within the reactor pressure vessel, eliminating the need for primary circuit pipework, with the intention of enhancing safety and reliability. In order to continue to support the interests of its Member States, the IAEA would like to add a basic principles simulator (hereinafter referred to as “the Simulator”) describing the basic operation of an iPWR to its suite of simulators. This document proposes a plant design as the basis for the Simulator. This design is specified so as to best represent typical designs of iPWR whilst using publically available information. This document then specifies functional and design requirements for the Simulator before detailing other requirements associated with its supply, including documentation, after sales support and warranties. Several options for the supply of the Simulator are presented in Chapter 6 – a base option and several augmented features. The Contractor is invited to submit tender documentation to the IAEA with a quote for the supply of each option. The Contractor may submit a proposal for an existing product that is similar to what is being specified. In this case the proposal shall identify and highlight the differences between what is being offered and what has been specified. Page 2 of 90 IAEA Specification Rev. 0 Small Integral PWR Basic Principles Simulator Dated 20 May 2015 CONTENTS EXECUTIVE SUMMARY ..................................................................................................................... 2 CONTENTS ............................................................................................................................................ 3 1. INTRODUCTION ........................................................................................................................... 6 1.1. BACKGROUND .......................................................................................................................... 6 1.2. SCOPE ......................................................................................................................................... 8 1.2.1. Purpose .................................................................................................................................. 8 1.2.2. Overview ............................................................................................................................... 8 2. DESCRIPTION OF THE iPWR REACTOR .................................................................................. 9 2.1. OVERVIEW ................................................................................................................................. 9 2.2. REACTOR PRESSURE VESSEL ............................................................................................. 13 2.3. PRESSURE CONTROL ............................................................................................................ 15 2.4. SECONDARY SYSTEM ........................................................................................................... 15 2.5. CHEMICAL AND VOLUME CONTROL SYSTEM ............................................................... 16 2.6. REACTOR PROTECTION SYSTEM ....................................................................................... 18 2.7. EMERGENCY CORE AND CONTAINMENT COOLING SYSTEMS .................................. 18 3. SIMULATOR FUNCTIONAL REQUIREMENTS ..................................................................... 22 3.1. SYSTEM BREAKDOWN OF REQUIREMENTS ................................................................... 22 3.1.1. Overview ............................................................................................................................. 22 3.1.2. Reactor core ......................................................................................................................... 24 3.1.3. Reactor Coolant ................................................................................................................... 25 3.1.4. Steam & Feedwater ............................................................................................................. 25 3.1.5. Turbine and Generator ......................................................................................................... 26 3.1.6. Condensate cooling ............................................................................................................. 26 3.1.7. Containment ........................................................................................................................ 26 3.1.8. Protection Systems .............................................................................................................. 27 3.2. PLANT CONTROL AND PROTECTION SYSTEMS ............................................................. 27 3.3. OPERATING SITUATIONS ..................................................................................................... 30 3.4. MALFUNCTIONS AND ACCIDENTS .................................................................................... 30 4. SIMULATOR DESIGN REQUIREMENTS ................................................................................ 32 4.1. OVERVIEW ............................................................................................................................... 32 4.2. INTERFACE .............................................................................................................................. 32 Page 3 of 90 IAEA Specification Rev. 0 Small Integral PWR Basic Principles Simulator Dated 20 May 2015 4.3. SOFTWARE REQUIREMENTS ............................................................................................... 41 4.4. HARDWARE ............................................................................................................................. 42 4.5. SIMULATION CONTROL ....................................................................................................... 42 4.5.1. Initiation .............................................................................................................................. 42 4.5.2. Initial Conditions ................................................................................................................. 42 4.5.3. Simulation Time .................................................................................................................. 42 4.5.4. Snapshot .............................................................................................................................. 43 4.5.5. Backtrack and Replay .......................................................................................................... 43 4.5.6. Manual Parameter Variation................................................................................................ 43 4.5.7. Malfunctions ........................................................................................................................ 43 4.5.8. Plant Configuration Variations (Optional Requirement) ..................................................... 44 5. OTHER REQUIREMENTS .......................................................................................................... 45 5.1. DOCUMENTATION ................................................................................................................. 45 5.1.1. Minimum Content of User Manual ..................................................................................... 45 5.2. PROJECT MANAGEMENT ..................................................................................................... 46 5.3. SCOPE OF SUPPLY .................................................................................................................. 46 5.4. QUALITY ASSURANCE ......................................................................................................... 46 5.5. WARRANTY AND SOFTWARE UPGRADES ....................................................................... 47 5.6. AFTER SALES SUPPORT ........................................................................................................ 47 6. OPTIONS FOR TENDER ............................................................................................................. 48 7. MATHEMATICAL MODELS ..................................................................................................... 49 7.1. OVERVIEW ............................................................................................................................... 49 7.2. REACTOR CORE .....................................................................................................................