Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 37 for “"Nuclear Regulatory Commission"”.
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MULTI-UNIT ACCIDENT CONTRIBUTIONS TO U.S. NUCLEAR REGULATORY COMMISSION QUANTITATIVE HEALTH OBJECTIVES: A SAFETY GOAL POLICY ANALYSIS USING MODELS FROM STATE-OF-THE-ART REACTOR CONSEQUENCE ANALYSES
The U.S. Nuclear Regulatory Commission implemented a safety goal policy in response to the 1979 Three Mile Island accident. This policy addresses the question “How safe is safe enough?” by specifying quantitative health objectives (QHOs) for comparison with results from nuclear power plant (NPP) …
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Dynamic Analysis of Diesel-Generator Sets Used in Nuclear Power Plants.
… analysis of diesel-generator sets used in nuclear power plants to supply power to pump motors during accident conditions. First, a mathematical model for each component in a diesel-generator set is developed. Individual models are next combined into one composite model from which the …
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The perception of risk : a summary of studies and how they pertain to the future of nuclear energy
One of the most interesting aspects of nuclear power is the perceived risk that the public infers from its existence. This paper explores the public's response to risk in general and specifically to nuclear power by reviewing behavioral studies examining how risk is perceived. The paper also …
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United States and France : a regulatory perspective
Nuclear materials and their uses are regulated differently in countries around the world. In the United States, the Nuclear Regulatory Commission regulates the different commercial and academic uses of nuclear technology, including nuclear power plants. In France, the Direction Generale de la …
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Local and expert knowledge in experienced mining communities : the case of a proposed uranium mine in Crownpoint
… the mine. Interviews, supplemented with numerous Nuclear Regulatory Commission documents and other articles of the public record, were used to understand how people developed their personal understanding of the trade-offs of mining uranium in their town. This research reveals that family …
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Evaluation of the economic simplified boiling water reactor human reliability analysis using the SHARP framework
… reactor design certified by the United States Nuclear Regulatory Commission. As part of the design process, the design control document was produced in 2006, and it includes a description of the human reliability analysis performed as part of the reactor's probabilistic risk analysis. The …
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Securing nuclear and radiological material in the homeland
… that terrorists view the acquisition of nuclear or radiological materials (NRAM) as a goal in furtherance of their efforts to attack the U.S. within its borders. The use of NRAM in a nuclear weapon of mass destruction (WMD) or a radiological dispersion device (RDD) could potentially kill …
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A Study on the Mechanical Characteristics of a Fiberglass Bed Formed During a Loss-of-Coolant-Accident at a PWR Nuclear Facility
… pumps from operating correctly. GSI-191 is a Nuclear Regulatory Commission (NRC) initiative to understand the effects a sump blockage would have on emergency cooling systems. Recently, the focus has been on understanding how the fiberglass bed will behave during an accident. An attempt was …
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Investment in nuclear generation in a restricted electricity market : an analysis of risks and financing options
… services at rates determined by the state regulatory agency. Deregulation and restructuring in the power industry triggered a transition towards competition in electricity generation, due to the formation of competitive markets at the wholesale level - in some states, at the retail level as …
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The use for frequency-consequence curves in future reactor licensing
The licensing of nuclear power plants has focused until now on Light Water Reactors and has not incorporated systematically insights and benefits from Probabilistic Risk Assessment (PRA). With the goal of making the licensing process more efficient, predictable and stable for advanced reactors, the …
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Testing the EPRI reactivity depletion decrement uncertainty methods
… 44 operational cycles of the Catawba and McGuire nuclear power plants) to determine fuel assembly reactivity decrements versus burnup. The analytical techniques used to infer measured assembly reactivities required perturbation calculations using 3D nodal diffusion core models. Subsequently, …
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Parametric study of the total system life cycle cost of an alternate nuclear waste management strategy using deep boreholes
… for the Yucca Mountain repository to the Nuclear Regulatory Commission, yet even the most optimistic timetable projects that the repository will not now open until at least 2020. The Office of Civilian Radioactive Waste Management recently revised the official undiscounted total life cycle …
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Evaluation of human error probabilities for post-initiating events
The United States Nuclear Regulatory Commission is responsible for the safe operation of the United States nuclear power plant fleet, and human reliability analysis forms an important portion of the probabilistic risk assessment that demonstrates the safety of sites. Treatment of post-initiating …
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Using risk-based regulations for licensing nuclear power plants : case study of gas-cooled fast reactor
… it has been dismissed in the past decades, nuclear power today has key assets when facing concerns on energy dependence and global warming. However, reactor licensing regulations need to be changed to get all the advantages of the most promising technologies. After reviewing the well-known …
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Framework for risk informed performance based regulation for nuclear power plants
… is going to be mainly realized by the nuclear power generating companies. The main reason behind this is that existing nuclear power plants have incurred large capital costs that have not been fully recovered. Hence it is predicted that nuclear power plants will not be able to survive …
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Consistency checks in decision analysis
Given the range of events that can occur at a nuclear power plant throughout its lifetime, the appropriate course of action associated with addressing these events is equally variant. While the issues concerning quantification of the frequency associated with these events can be addressed using …
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On the evaluation of human error probabilities for post-initiating events
… Error Analysis (ATHEANA), developed by the US Nuclear Regulatory Commission. This demonstration includes a brief description of the two models, a comparison of what they incorporate in HEP quantification, a "translation" of terminologies, and examples of their capabilities via the Halden Task …
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Thermal hydraulics analysis of the MIT research reactor in support of a low enrichment uranium (LEU) core conversion
… requested in the power upgrade submission to the Nuclear Regulatory Commission.
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Risk-informed applications and online maintenance in France and the United States
During the past twenty-five years, the US Nuclear Regulatory Commission has been progressing toward a more risk-informed, performance-based regulation. This regulatory framework has effectively supported the development of online maintenance practices. In France, while the safety authority has been …
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Feasibility of lateral emplacement in very deep borehole disposal of high level nuclear waste
… Energy recently filed a motion to withdraw the Nuclear Regulatory Commission license application for the High Level Waste Repository at Yucca Mountain in Nevada. As the U.S. has focused exclusively on geologic disposal in shallow mined repositories for the past two decades, an examination of …
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