Описание: Flexible operation and related power changes can have a direct impact on fuel integrity through pellet–cladding interaction/stress corrosion cracking (PCI/SCC) phenomena, which could lead to fuel failures in certain conditions. For some anticipated operational occurrences that affect fuel with small PCI/SCC margins, the fuel failures caused by PCI/SCC cannot be assumed to be benign, and a significant radiological source term may be generated. This publication provides an overview of PCI/SCC studies and reports on the progress made since the early 2000s, based on presentations and discussions at a related IAEA technical meeting held in October 2019.
Описание: As Member States seek to extend the operating lifetime of nuclear power plants beyond that which was originally licensed, safety oversight of ageing management and long term operation (LTO) has become increasingly important. This Safety Report provides technical and practical information based on existing regulatory approaches and practices of Member States, and the application of the IAEA Safety Standards. This includes requirements and pre?conditions of the regulatory body for LTO, authorization processes applied to LTO, and regulatory practices and documentation to prepare for and implement LTO. The report is intended for nuclear safety authorities, operating organizations, licensees, manufacturers, designers and technical support organizations considering authorization for LTO of nuclear power plants.
Описание: In recent decades, the number of IAEA Member States planning to extend the operation of their nuclear power plants (NPPs) beyond the time frame originally anticipated has steadily increased. These decisions have been influenced by the significant economic advantages offered by the long term operation (LTO) of existing NPPs. This Safety Report complements IAEA Safety Standards Series Nos SSR?2/2 (Rev. 1), Safety of Nuclear Power Plants: Commissioning and Operation, and SSG?48, Ageing Management and Development of a Programme for Long Term Operation of Nuclear Power Plants. It provides information on selected topics from the latter, and specifically, it addresses data collection and record keeping, scope setting for structures, systems and components, plant programmes, corrective action programmes, and documentation of ageing management and LTO assessment. The publication focuses on NPPs throughout their lifetime, including operation beyond the time frame originally established for their operation and decommissioning, while considering the different reactor designs that exist around the world. It is also relevant for facilities for spent fuel storage and radioactive waste management at NPPs. It may also be used as a basis for managing the ageing of other nuclear installations and for radioactive waste 2 management facilities. This Safety Report is intended to provide information for operating organizations but may be also used by regulatory bodies.
Описание: As an integral part of the International Project on Innovative Nuclear Reactors and Fuel Cycles (INPRO), several collaborative projects were established by its members. The IAEA/INPRO Collaborative Project on Environmental Impact Benchmarking Applicable for Nuclear Energy Systems under Normal Operation (ENV) was one of them. This publication is the outcome of the ENV summarising results developed under this project by the groups of national experts. It presents a set of examples of different approaches for estimating environmental impact from nuclear power plants (NPPs) under normal operation conditions in different countries based on participants' experience and considering the IAEA Safety Standard on a generic framework for consideration of radiological environmental impact. It also contributes to the development of a common understanding in assessing releases from new NPPs and associated activities in terms of the radiation dose to members of the public. This publication will contribute to further improvement of the INPRO methodology and can help Member States applying it to perform a nuclear energy system assessment in the area of environmental impact of stressors.
Автор: Wang, Jun Название: Nuclear Power Plant Design And Analysis Codes ISBN: 0128181907 ISBN-13(EAN): 9780128181904 Издательство: Elsevier Science Рейтинг: Цена: 31160.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
Nuclear Power Plant Design and Analysis Codes: Development, Validation, and Application presents the latest research on the most widely used nuclear codes and the wealth of successful accomplishments which have been achieved over the past decades by experts in the field. Editors Wang, Li, Allison, and Hohorst and their team of authors provide readers with a comprehensive understanding of nuclear code development and how to apply it to their work and research to make their energy production more flexible, economical, reliable and safe.
Written in an accessible and practical way, each chapter considers strengths and limitations, data availability needs, verification and validation methodologies and quality assurance guidelines to develop thorough and robust models and simulation tools both inside and outside a nuclear setting. This book benefits those working in nuclear reactor physics and thermal-hydraulics, as well as those involved in nuclear reactor licensing. It also provides early career researchers with a solid understanding of fundamental knowledge of mainstream nuclear modelling codes, as well as the more experienced engineers seeking advanced information on the best solutions to suit their needs.
Описание: In using risk-informed approaches for ensuring safety of operating nuclear power plants (NPPs), risk importance measures obtained from probabilistic risk assessments (PRAs) of the plants are integral elements of consideration in many cases. Obtaining these measures in appropriate forms is helpful for decision makers and can facilitate the use of risk information.
Описание: Presents the results of an IAEA coordinated research project which served as a forum for the establishment of a research reactor material properties database for irradiated core structural components that are important to safety.
Описание: This Safety Guide provides specific recommendations on protection against internal and external hazards in the operation of nuclear power plants. It provides new or updatedrecommendations derived from enhanced understanding of operational aspects of hazards and combinations of hazards. Operating experience gained from incidents and accidents in nuclear power plants around the world has demonstrated that fire can be an important risk contributor in many Member States. However, there are other internal and external hazards that have also to be considered in the design and operation of nuclear power plants. This Safety Guide supersedes and expands the scope of lAEA Safety Standards Series No. NS- G-2. 1, Fire Safety in the Operation of Nuclear Power Plants, to include recommendations on these other hazards.
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