Fatigue Assessment in Light Water Reactors for Long Term Operation

Fatigue Assessment in Light Water Reactors for Long Term Operation PDF

Author: IAEA

Publisher: International Atomic Energy Agency

Published: 2023-04-27

Total Pages: 168

ISBN-13: 9201284225

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Fatigue is a major element in time limited ageing analysis for long term operation of nuclear power plants (NPPs). It is important to understand how cracks occur and grow as a result of fatigue, and then assess fatigue failure. In the design and operating phase of NPPs, it is essential to consider the concurrent loadings associated with the design transients, thermal stratification, seismically induced stress cycles, and all relevant loads due to the various operational modes. After repeated cyclic loading, crack initiation can occur at the most highly affected locations if sufficient localized micro-structural damage has accumulated. This publication provides practical guidelines on how to identify and manage fatigue issues in NPPs. It explains the mechanism of fatigue, identifies which elements are the major contributors, and details how fatigue can be minimized in the design phase for new NPPs.

Fatigue Assessment in Light Water Reactors for Long Term Operation

Fatigue Assessment in Light Water Reactors for Long Term Operation PDF

Author: International Atomic Energy Agency

Publisher: International Atomic Energy Agency

Published: 2023-07-18

Total Pages: 0

ISBN-13: 9789201282224

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Fatigue is a major element in time limited ageing analysis for long term operation of nuclear power plants (NPPs). It is important to understand how cracks occur and grow as a result of fatigue, and then assess fatigue failure. In the design and operating phase of NPPs, it is essential to consider the concurrent loadings associated with the design transients, thermal stratification, seismically induced stress cycles, and all relevant loads due to the various operational modes. After repeated cyclic loading, crack initiation can occur at the most highly affected locations if sufficient localized micro-structural damage has accumulated. This publication provides practical guidelines on how to identify and manage fatigue issues in NPPs. It explains the mechanism of fatigue, identifies which elements are the major contributors, and details how fatigue can be minimized in the design phase for new NPPs.

Economic Assessment of the Long Term Operation of Nuclear Power Plants

Economic Assessment of the Long Term Operation of Nuclear Power Plants PDF

Author:

Publisher:

Published: 2018

Total Pages: 126

ISBN-13:

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"This publication describes the various approaches to the techno-economic assessment of a project for the long term operation of a nuclear power plant in its specific market environment. It examines the process of defining the technical scope required to prolong the operating licences of nuclear power plants and highlights the need for further studies on technical cost drivers and economic assessments in order to better define the cost boundaries of long term operation. Information is also provided on the new IAEA software LTOFIN, which was developed to assist in performing long term operation economic assessments within the process described in the publication."--Publisher's description.

Materials Ageing and Degradation in Light Water Reactors

Materials Ageing and Degradation in Light Water Reactors PDF

Author: K L Murty

Publisher: Elsevier

Published: 2013-02-18

Total Pages: 441

ISBN-13: 0857097458

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Light water reactors (LWRs) are the predominant class of nuclear power reactors in operation today; however, ageing and degradation can influence both their performance and lifetime. Knowledge of these factors is therefore critical to safe, continuous operation. Materials ageing and degradation in light water reactors provides a comprehensive guide to prevalent deterioration mechanisms, and the approaches used to handle their effects.Part one introduces fundamental ageing issues and degradation mechanisms. Beginning with an overview of ageing and degradation issues in LWRs, the book goes on to discuss corrosion in pressurized water reactors and creep deformation of materials in LWRs. Part two then considers materials’ ageing and degradation in specific LWR components. Applications of zirconium alloys in LWRs are discussed, along with the ageing of electric cables. Materials management strategies for LWRs are then the focus of part three. Materials management strategies for pressurized water reactors and VVER reactors are considered before the book concludes with a discussion of materials-related problems faced by LWR operators and corresponding research needs.With its distinguished editor and international team of expert contributors, Materials ageing and degradation in light water reactors is an authoritative review for anyone requiring an understanding of the performance and durability of this type of nuclear power plant, including plant operators and managers, nuclear metallurgists, governmental and regulatory safety bodies, and researchers, scientists and academics working in this area. Introduces the fundamental ageing issues and degradation mechanisms associated with this class of nuclear power reactors Considers materials ageing and degradation in specific light water reactor components, including properties, performance and inspection Chapters also focus on material management strategies

Nuclear Power Plant Safety and Mechanical Integrity

Nuclear Power Plant Safety and Mechanical Integrity PDF

Author: George Antaki

Publisher: Butterworth-Heinemann

Published: 2014-11-25

Total Pages: 354

ISBN-13: 0124173063

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One of the most critical requirements for safe and reliable nuclear power plant operations is the availability of competent maintenance personnel. However, just as the nuclear power industry is experiencing a renaissance, it is also experiencing an exodus of seasoned maintenance professionals due to retirement. The perfect guide for engineers just entering the field or experienced maintenance supervisors who need to keep abreast of the latest industry best practices, Nuclear Power Plant Maintenance: Mechanical Systems, Equipment and Safety covers the most common issues faced in day-to-day operations and provides practical, technically proven solutions. The book also explains how to navigate the various maintenance codes, standards and regulations for the nuclear power industry. Discusses 50 common issues faced by engineers in the nuclear power plant field Provides advice for complying with international codes and standards (including ASME) Describes safety classification for systems and components Includes case studies to clearly explain the lessons learned over decades in the nuclear power industry

Non-Baseload Operation in Nuclear Power Plants

Non-Baseload Operation in Nuclear Power Plants PDF

Author: International Atomic Energy Agency

Publisher:

Published: 2018

Total Pages: 0

ISBN-13: 9789201108166

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Addresses all relevant aspects of flexible (non-baseload) operation of nuclear power plants (NPPs), specifically focusing on changing electrical output to match the electrical demand and to control the frequency of the electrical system. It provides collective guidance based on current knowledge and operational experience.

Status of Advanced Light Water Reactor Designs 2004

Status of Advanced Light Water Reactor Designs 2004 PDF

Author: International Atomic Energy Agency

Publisher:

Published: 2004

Total Pages: 800

ISBN-13:

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The report is intended to be a source of reference information for interested organizations and individuals, among them decision makers of countries considering implementation of nuclear power programmes. Further, the report is addressed to government officials with an appropriate technical background and to research institutes of countries with existing nuclear programmes that wish to be informed on the global status in order to plan their nuclear power programmes including both research and development efforts and means for meeting future energy needs. The report is also intended to provide the public with unbiased information on nuclear power.

Proceedings of the 15th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors

Proceedings of the 15th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors PDF

Author: Gabriell Ilevbare

Publisher: Springer

Published: 2017-07-17

Total Pages: 2354

ISBN-13: 3319487604

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This 15th Edition of the International Conference on Materials Degradation in Light Water Reactors focuses on subject areas critical to the safe and efficient running of nuclear reactor systems through the exchange and discussion of reseach results as well as field operating and management experience.