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Seismic Probabilistic Risk Assessment And Seismic Margins Studies For Nuclear Power Plants
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Book Synopsis Seismic Probabilistic Risk Assessment and Seismic Margins Studies for Nuclear Power Plants by : Howard H. M. Hwang
Download or read book Seismic Probabilistic Risk Assessment and Seismic Margins Studies for Nuclear Power Plants written by Howard H. M. Hwang and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report presents a review of the seismic probabilistic risk assessment and seismic margin studies for nuclear power plants in the United States. The techniques employed in these studies are briefly described. A few comments on the evaluation of the fragility of structures and equipment are discussed. Seismic PRA is a systematic process to evaluate the safety of nuclear power plants. In the process, it integrates all the elements such as seismic hazard component fragility and plant system. Thus, it provides the overall view of the safety of an entire plant under a seismic event. The major tasks of a seismic PRA such as the evaluation of hazard curves, component fragility and plant system are also present in probabilistic analyses of non-nuclear facilities. The concept and technique embodied in seismic PRA for nuclear power plants can be applied to other types of engineering facilities. "--Abstract
Book Synopsis Seismic Risk Analysis of Nuclear Power Plants by : Wei-Chau Xie
Download or read book Seismic Risk Analysis of Nuclear Power Plants written by Wei-Chau Xie and published by Cambridge University Press. This book was released on 2019-04-18 with total page 631 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seismic Risk Analysis of Nuclear Power Plants addresses the needs of graduate students in engineering, practicing engineers in industry, and regulators in government agencies, presenting the entire process of seismic risk analysis in a clear, logical, and concise manner. It offers a systematic and comprehensive introduction to seismic risk analysis of critical engineering structures focusing on nuclear power plants, with a balance between theory and applications, and includes the latest advances in research. It is suitable as a graduate-level textbook, for self-study, or as a reference book. Various aspects of seismic risk analysis - from seismic hazard, demand, and fragility analyses to seismic risk quantification, are discussed, with detailed step-by-step analysis of specific engineering examples. It presents a wide range of topics essential for understanding and performing seismic risk analysis, including engineering seismology, probability theory and random processes, digital signal processing, structural dynamics, random vibration, and engineering risk and reliability.
Book Synopsis Seismic Fragility of Nuclear Power Plant Components by : Kamal K. Bandyopadhyay
Download or read book Seismic Fragility of Nuclear Power Plant Components written by Kamal K. Bandyopadhyay and published by . This book was released on 1986 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Report written by and published by . This book was released on 1987 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Earthquakes, Tsunamis and Nuclear Risks by : Katsuhiro Kamae
Download or read book Earthquakes, Tsunamis and Nuclear Risks written by Katsuhiro Kamae and published by Springer. This book was released on 2016-01-22 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers seismic probabilistic risk assessment (S-PRA) and related studies which have become more important to increase the safety of nuclear facilities against earthquakes and tsunamis in the face of the many uncertainties after the Fukushima accident. The topics are (1) Active faults and active tectonics important for seismic hazard assessment of nuclear facilities,(2) Seismic source modeling and simulation and modeling techniques indispensable for strong ground motion prediction, and (3) PRA with external hazard and risk communication. The Fukushima accident has showed us the limitations of the deterministic evaluation approach to external events (an earthquake and tsunami) in which there are many uncertainties. Furthermore, public anxiety regarding nuclear safety because of an unexpected threat caused by an earthquake or tsunami is growing. The current policy on the estimation of the design basis of ground motion as well as tsunami height still has not been improved following the Fukushima accident. In particular, the risk concept in a nuclear system regarding seismic motion and a tsunami beyond the design basis is indispensable. Therefore, research and development for PRA enhancing nuclear safety are being actively pursued not only in Japan but also worldwide. This book provides an opportunity for readers to consider the future direction of nuclear safety vis-à-vis natural disasters.
Book Synopsis Seismic Risk Analysis Methods and Seismic Effects in Nuclear Power Plant by : Ahmad Kuwaifi
Download or read book Seismic Risk Analysis Methods and Seismic Effects in Nuclear Power Plant written by Ahmad Kuwaifi and published by . This book was released on 1985 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seismic Safety Margins Research Program by :
Download or read book Seismic Safety Margins Research Program written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Seismic Safety Margins Research Program (SSMRP) is an NRC-funded, multiyear program conducted by Lawrence Livermore National Laboratory (LLNL). Its goal is to develop a complete, fully coupled analysis procedure (including methods and computer codes) for estimating the risk of an earthquake-caused radioactive release from a commercial nuclear power plant. The analysis procedure is based upon a state-of-the-art evaluation of the current seismic analysis and design process and explicitly includes the uncertainties inherent in such a process. The results will be used to improve seismic licensing requirements for nuclear power plants. As currently planned, the SSMRP will be completed in September, 1984. This document presents the program plan for work to be done during the remainder of the program. In Phase I of the SSMRP, the necessary tools (both computer codes and data bases) for performing a detailed seismic risk analysis were identified and developed. Demonstration calculations were performed on the Zion Nuclear Power Plant. In the remainder of the program (Phase II) work will be concentrated on developing a simplified SSMRP methodology for routine probabilistic risk assessments, quantitative validation of the tools developed and application of the simplified methodology to a Boiling Water Reactor. (The Zion plant is a pressurized water reactor.) In addition, considerable effort will be devoted to making the codes and data bases easily accessible to the public.
Book Synopsis Methodologies for Seismic Safety Evaluation of Existing Nuclear Installations by : IAEA
Download or read book Methodologies for Seismic Safety Evaluation of Existing Nuclear Installations written by IAEA and published by International Atomic Energy Agency. This book was released on 2020-08-26 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experience shows that an assessment of the seismic capacity of an existing operating facility can be required for a number of reasons, for example identification of potential seismic vulnerabilities based on operating experience events or the periodic safety review programme. This publication covers the seismic safety evaluation programmes to be performed on existing nuclear installations in order to ensure that the required fundamental safety functions are available, with particular attention to the safe shutdown of reactors. It includes lessons learned based on the IAEA Action Plan on Nuclear Safety following the Fukushima Daiichi accident, and updated methodologies for seismic safety evaluation of nuclear installations.
Book Synopsis Seismic Safety Margins Research Program. Phase I, Final Report - Overview by :
Download or read book Seismic Safety Margins Research Program. Phase I, Final Report - Overview written by and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Seismic Safety Margins Research Program (SSMRP) is a multiyear, multiphase program whose overall objective is to develop improved methods for seismic safety assessments of nuclear power plants, using a probabilistic computational procedure. The program is being carried out at the Lawrence Livermore National Laboratory and is sponsored by the US Nuclear Regulatory Commission, Office of Nuclear Regulatory Research. Phase I of the SSMRP was successfully completed in January 1981: A probabilistic computational procedure for the seismic risk assessment of nuclear power plants has been developed and demonstrated. The methodology is implemented by three computer programs: HAZARD, which assesses the seismic hazard at a given site, SMACS, which computes in-structure and subsystem seismic responses, and SEISIM, which calculates system failure probabilities and radioactive release probabilities, given (1) the response results of SMACS, (2) a set of event trees, (3) a family of fault trees, (4) a set of structural and component fragility descriptions, and (5) a curve describing the local seismic hazard. The practicality of this methodology was demonstrated by computing preliminary release probabilities for Unit 1 of the Zion Nuclear Power Plant north of Chicago, Illinois. Studies have begun aimed at quantifying the sources of uncertainty in these computations. Numerous side studies were undertaken to examine modeling alternatives, sources of error, and available analysis techniques. Extensive sets of data were amassed and evaluated as part of projects to establish seismic input parameters and to produce the fragility curves. 66 refs., 29 figs., 10 tabs.
Book Synopsis Validation of Seismic Probabilistic Risk Assessments of Nuclear Power Plants by :
Download or read book Validation of Seismic Probabilistic Risk Assessments of Nuclear Power Plants written by and published by . This book was released on 1994 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: A seismic probabilistic risk assessment (PRA) of a nuclear plant requires identification and information regarding the seismic hazard at the plant site, dominant accident sequences leading to core damage, and structure and equipment fragilities. Uncertainties are associated with each of these ingredients of a PRA. Sources of uncertainty due to seismic hazard and assumptions underlying the component fragility modeling may be significant contributors to uncertainty in estimates of core damage probability. Design and construction errors also may be important in some instances. When these uncertainties are propagated through the PRA, the frequency distribution of core damage probability may span three orders of magnitude or more. This large variability brings into question the credibility of PRA methods and the usefulness of insights to be gained from a PRA. The sensitivity of accident sequence probabilities and high-confidence, low probability of failure (HCLPF) plant fragilities to seismic hazard and fragility modeling assumptions was examined for three nuclear power plants. Mean accident sequence probabilities were found to be relatively insensitive (by a factor of two or less) to: uncertainty in the coefficient of variation (logarithmic standard deviation) describing inherent randomness in component fragility; truncation of lower tail of fragility; uncertainty in random (non-seismic) equipment failures (e.g., diesel generators); correlation between component capacities; and functional form of fragility family. On the other hand, the accident sequence probabilities, expressed in the form of a frequency distribution, are affected significantly by the seismic hazard modeling, including slopes of seismic hazard curves and likelihoods assigned to those curves.
Book Synopsis Validation Needs of Seismic Probabilistic Risk Assessment (PRA) Methods Applied to Nuclear Power Plants by : C. A. Kot
Download or read book Validation Needs of Seismic Probabilistic Risk Assessment (PRA) Methods Applied to Nuclear Power Plants written by C. A. Kot and published by . This book was released on 1985 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Seismic Safety for Nuclear Installations by : IAEA
Download or read book Evaluation of Seismic Safety for Nuclear Installations written by IAEA and published by International Atomic Energy Agency. This book was released on 2024-02-07 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Safety Guide provides recommendations on the seismic safety evaluation of nuclear installations. It addresses all types of new and existing nuclear installations. This Safety Guide presents three assessment methodologies: the deterministic approach, generally known as seismic margin assessment (SMA), seismic probabilistic safety assessment (SPSA), and a combination of SMA and SPSA known as probabilistic safety assessment (PSA) based SMA. This Safety Guide provides specific recommendations on applying a performance-based graded approach to the seismic safety evaluation of nuclear installations other than nuclear power plants. It also covers the relation between seismic safety margins and defense-in-depth (DiD) level 3 and level 4. For new nuclear installations, this Safety Guide provides recommendations to assess adequacy of seismic margin to avoid cliff edge effects considering DiD level 3 and level 4. This publication is intended for use by regulatory bodies, operating organizations, and designers of nuclear installations.
Book Synopsis Seismic Safety Margins Research Program: Overview by : Paul D. Smith
Download or read book Seismic Safety Margins Research Program: Overview written by Paul D. Smith and published by . This book was released on 1984 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seismic Margins and Calibration of Piping Systems by :
Download or read book Seismic Margins and Calibration of Piping Systems written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Seismic Safety Margins Research Program (SSMRP) is a US Nuclear Regulatory Commission-funded, multiyear program conducted by Lawrence Livermore National Laboratory (LLNL). Its objective is to develop a complete, fully coupled analysis procedure for estimating the risk of earthquake-induced radioactive release from a commercial nuclear power plant and to determine major contributors to the state-of-the-art seismic and systems analysis process and explicitly includes the uncertainties in such a process. The results will be used to improve seismic licensing requirements for nuclear power plants. In Phase I of SSMRP, the overall seismic risk assessment methodology was developed and assembled. The application of this methodology to the seismic PRA (Probabilistic Risk Assessment) at the Zion Nuclear Power Plant has been documented. This report documents the method deriving response factors. The response factors, which relate design calculated responses to best estimate values, were used in the seismic response determination of piping systems for a simplified seismic probablistic risk assessment. 13 references, 31 figures, 25 tables.
Book Synopsis Probabilistic methods in seismic risk assessment for nuclear power plants by :
Download or read book Probabilistic methods in seismic risk assessment for nuclear power plants written by and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Review of Recommendations for Probabilistic Seismic Hazard Analysis by : National Research Council
Download or read book Review of Recommendations for Probabilistic Seismic Hazard Analysis written by National Research Council and published by National Academies Press. This book was released on 1997-01-06 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Society of Civil Engineers Publisher :Amer Society of Civil Engineers ISBN 13 :9780784404331 Total Pages :118 pages Book Rating :4.4/5 (43 download)
Book Synopsis Seismic Analysis of Safety-related Nuclear Structures and Commentary by : American Society of Civil Engineers
Download or read book Seismic Analysis of Safety-related Nuclear Structures and Commentary written by American Society of Civil Engineers and published by Amer Society of Civil Engineers. This book was released on 2000 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides requirements for performing analyses of new structure design or existing structure evaluation to determine the reliability of structures under earthquake motions. This work also outlines the rules and analysis parameters that are expected to produce seismic responses with about the same probability of non-exceedance as the input.
