Download or read book Thermal fatigue cracking of feedwater piping to steam generators written by and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Cracking in Steam Generator Feedwater Piping in Pressurized Water Reactor Plants written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Cracking in feedwater piping was detected near the inlet to steam generators in 15 pressurized water reactor plants. Sections with cracks from nine plants are examined with the objective of identifying the cracking mechanism and assessing various factors that might contribute to this cracking. Using transmission electron microscopy, fatigue striations are observed on replicas of cleaned crack surfaces. Calculations based on the observed striation spacings gave a cyclic stress value of 150 MPa (22 ksi) for one of the major cracks. The direction of crack propagation was invariably related to the piping surface and not to the piping axis. These two factors are consistent with the proposed concept of thermally induced, cyclic, tensile surface stresses and it is concluded that the overriding factor in the cracking problem was the presence of such undocumented cyclic loads.

Download or read book Evaluation of Cracking in Feedwater Piping Adjacent to the Steam Generators in Nine Pressurized Water Reactor Plants written by Alfred Goldberg and published by . This book was released on 1980 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Safety written by and published by . This book was released on 1994 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-11 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pipe Cracking Experience in Light water Reactors written by Louis Frank and published by . This book was released on 1980 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reactor Safety Research Programs written by S. K. Edler and published by . This book was released on 1983 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ASME Technical Papers written by and published by . This book was released on 1983 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Review of Industry Efforts to Manage Pressurized Water Reactor Feedwater Nozzle Piping and Feedring Cracking and Wall Thinning written by and published by . This book was released on 1997 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a review of nuclear industry efforts to manage thermal fatigue, flow-accelerated corrosion, and water hammer damage to pressurized water reactor (PWR) feedwater nozzles, piping, and feedrings. The review includes an evaluation of design modifications, operating procedure changes, augmented inspection and monitoring programs, and mitigation, repair and replacement activities. Four actions were taken: (a) review of field experience to identify trends of operating events, (b) review of technical literature, (c) visits to PWR plants and a PWR vendor, and (d) solicitation of information from 8 other countries. Assessment of field experience is that licensees have apparently taken sufficient action to minimize feedwater nozzle cracking caused by thermal fatigue and wall thinning of J-tubes and feedwater piping. Specific industry actions to minimize the wall-thinning in feedrings and thermal sleeves were not found, but visual inspection and necessary repairs are being performed. Assessment of field experience indicates that licensees have taken sufficient action to minimize steam generator water hammer in both top-feed and preheat steam generators. Industry efforts to minimize multiple check valve failures that have allowed backflow of steam from a steam generator and have played a major role in several steam generator water hammer events were not evaluated. A major finding of this review is that analysis, inspection, monitoring, mitigation, and replacement techniques have been developed for managing thermal fatigue and flow-accelerated corrosion damage to feedwater nozzles, piping, and feedrings. Adequate training and appropriate applications of these techniques would ensure effective management of this damage.

Download or read book Practical Guide to Thermal Power Station Chemistry written by Soumitra Banerjee and published by Orange Books. This book was released on 2020-11-25 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the entire gamut of work which chemistry department of a power plant does. The book covers water chemistry, steam-water cycle chemistry, cooling water cycle chemistry, condensate polishing, stator water conditioning, coal analysis, water analysis procedures in great details. It is for all kinds of intake water and all types of boilers like Drum/Once-through for subcritical and supercritical technologies in different operating conditions including layup. It has also covered nuances of different cycle chemistry treatments like All Volatile / Oxygenated. One of the major reasons of generation loss in a thermal plant is because of boiler tube leakage. There is illustration and elucidation on this which will definitely make people more aware of the importance of adherence to strict quality parameters required for the adopted technology prescribed by well researched organization like EPRI. The other important coverage in this book is determination of quality of primary and secondary fuel which is very important to understand combustion in Boiler, apart from its commercial implication. The health analysis of Lubricants and hydraulic oil have also been adequately covered. I am very much impressed with the detailing of each and every issue. Though Soumitra refers the book as "Practical Guide", the reader will find complete theoretical background of suggested action and the rational of monitoring each parameter. He has detailed out the process, parameters, sampling points, sample frequency & collection methods, measurement techniques, laboratory set up and record keeping very meticulously and there is adequate emphasis on trouble shooting too. There is a nice blending of theory and practice in such a way that the reader at the end will not only learn what to do and how to do, he will also know why to do. I hope this book will be invaluable and a primer to every power plant chemist and the station management shall find it a bankable document to ensure best chemistry practices.

Download or read book Handbook of Case Histories in Failure Analysis Volume 2 written by Khlefa Alarbe Esaklul and published by ASM International. This book was released on 1992-01-01 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents more than 120 expert failure analysis case histories from industries including automotive, aerospace, utilities, oil and gas, petrochemical, biomedical, ground transportation, off-highway vehicles, and more. Volume 2 builds on the tremendous acceptance of Volume 1 by the failure analysis community. The two volumes can also be purchased as a set for a special discounted price. Learn how others have investigated and solved failures in various industries involving a wide range of failure modes, materials, and analysis techniques.

Download or read book Report to Congress on Abnormal Occurrences written by and published by . This book was released on 1977 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the U S Nuclear Regulatory Commission Water Reactor Safety Research Information Meeting written by and published by . This book was released on 1982 with total page 1132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Case Histories in Failure Analysis Volume 1 written by Khlefa Alarbe Esaklul and published by ASM International. This book was released on 1992-01-01 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains 115 never-before published failure analysis case studies contributed by experts from around the world. Contents: Aircraft, Electrical Equipment Fasteners, Ground Transportation, High Temperature, Miscellaneous, Non-Metallic Materials, Process Equipment, Rotating Equipment, Structures. Learn how others have solved failures in various industries such as automotive, aerospace, utilities, oil and gas, petrochemical, biomedical, ground transportation, off-highway vehicles, and more.

Download or read book Materials and Processes for Nuclear Energy Today and in the Future written by Fanny Balbaud-Célérier and published by John Wiley & Sons. This book was released on 2024-11-20 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a low carbon energy source, nuclear energy plays a reinforced role in a sustainable electricity mix. However, strengthening the share of nuclear energy implies the guarantee of safe, long-term operation of current systems and potentially the fostering of new constructions. Service life extension – as well as the design of future nuclear power plants – relies on the availability of robust and qualified structural materials, and their manufacturing processes. The science and engineering of materials are key in selecting robust material solutions and predicting aging mechanisms. Materials and Processes for Nuclear Energy Today and in the Future reviews different reactor concepts and fuel management systems. Nuclear equipment has to maintain integrity under extreme conditions, such as high temperature, radiation, loads and/or corrosive environments. This book analyzes the requirements on components, and introduces reference solutions regarding materials and processes. It describes the materials’ main properties, their limits and the current R&D trends. Lastly, innovations are discussed, such as materials with enhanced properties, advanced manufacturing or using AI.

Download or read book Fatigue Assessment in Light Water Reactors for Long Term Operation written by IAEA and published by International Atomic Energy Agency. This book was released on 2023-04-27 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Nuclear Safety written by Gianni Petrangeli and published by Elsevier. This book was released on 2006-05-30 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear Safety provides the methods and data needed to evaluate and manage the safety of nuclear facilities and related processes using risk-based safety analysis, and provides readers with the techniques to assess the consequences of radioactive releases. The book covers relevant international and regional safety criteria (US, IAEA, EUR, PUN, URD, INI). The contents deal with each of the critical components of a nuclear plant, and provide an analysis of the risks arising from a variety of sources, including earthquakes, tornadoes, external impact and human factors. It also deals with the safety of underground nuclear testing and the handling of radioactive waste. - Covers all plant components and potential sources of risk including human, technical and natural factors. - Brings together information on nuclear safety for which the reader would previously have to consult many different and expensive sources. - Provides international design and safety criteria and an overview of regulatory regimes.