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 50 for “"Nuclear fuel cycle"”.
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Sensitivity analysis of nuclear fuel cycle transitions
The present United States nuclear fuel cycle faces challenges that hinder the expansion of nuclear energy technology. The U.S. Department of Energy identified four classes of nuclear fuel cycle options the U.S could transition to, which would overcome these challenges and make nuclear energy …
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A critique and simplification of nuclear fuel cycle economics calculations
… Institute of Technology, Dept. of Nuclear Engineering, 1984.
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A decision analysis framework for the U.S. nuclear fuel cycle
… to mitigate some of the long-lasting impacts of nuclear waste. Deciding how to navigate this tradeoff, between cost and waste, is a central challenge for stewards of nuclear power. It is made more difficult by uncertainties that characterize the global future of nuclear electricity generation. …
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LEU+ to HALEU nuclear fuel cycle transitions and dynamic reactor models
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms
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Simulation of the nuclear fuel cycle with recycling : options and outcomes
… of the CAFCA code to study the mass flow in the nuclear fuel cycle, and the impact of different options for advanced reactors and fuel recycling facilities on the accumulation of the transuranics (TRU) inventory. Several aspects of the nuclear fuel cycle are studied for the US and for Brazil. …
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Sensitivity analysis and optimization of the nuclear fuel cycle : a systematic approach
For decades, nuclear energy development was based on the expectation that recycling of the fissionable materials in the used fuel from today's light water reactors into advanced (fast) reactors would be implemented as soon as technically feasible in order to extend the nuclear fuel resources. More …
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Sensitivity of economic performance of the nuclear fuel cycle to simulation modeling assumptions
Comparing different nuclear fuel cycles and assessing their implications require a fuel cycle simulation model as complete and realistic as possible. In this thesis, methodological implications of modeling choices are discussed in connection with development of the MIT fuel cycle simulation code …
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Impact of thorium based molten salt reactor on the closure of the nuclear fuel cycle
… reactor (LFTR) is a MSR concept based on thorium fuel cycle. LFTR uses liquid fluoride salts as a nuclear fuel. It uses <sup>232</sup>Th and <sup>233</sup>U as the fertile and fissile materials, respectively. Fluoride salt of these nuclides is dissolved in a mixed carrier salt of lithium and …
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Impact of alternative nuclear fuel cycle options on infrastructure and fuel requirements, actinide and waste inventories, and economics
The nuclear fuel once-through cycle (OTC) scheme currently practiced in the U.S. leads to accumulation of uranium, transuranic (TRU) and fission product inventories in the spent nuclear fuel. Various separation and recycling options can be envisioned in order to reduce these inventories while …
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Optimization of material flow in the nuclear fuel cycle using a cyclic multi-stage production-to-inventory model
The nuclear fuel cycle is modelled as a cyclic, multi-stage production-to-inventory system. The objective is to meet a known deterministic demand for energy while minimizing acquisition, production, and inventory holding costs for all stages of the fuel cycle. The model allows for cyclic flow …
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Used nuclear fuel storage options including implications of small modular reactors
This work addresses two aspects of the nuclear fuel cycle system with significant policy implications. The first is the preferred option for used fuel storage based on economics: local, regional or national storage. The second is the implications of small modular reactor (SMR) introduction for the …
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Global terrestrial uranium supply and its policy implications : a probabilistic projection of future uranium costs
… as regards the development and deployment of nuclear fuel cycle alternatives. In this study, which was part of the MIT Study on the Future of the Nuclear Fuel Cycle, uranium production cost projections over the next half-century are enabled through the development of a comprehensive model for …
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Fuel cycle transition simulation capabilities in CYCLUS
… the demand for tools necessary to model complex nuclear fuel cycles (NFCs) and advanced reactor technologies. This thesis demonstrates the capability of CYCLUS , the agent-based fuel cycle simulator, to model, simulate, and analyze real-life fuel cycle transition scenarios. I introduce new …
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Strengthening the nonproliferation regime : using case studies to determine the potential of multilateral arrangements
The resurgence of global interest in nuclear energy is fueled by growing energy demands, concerns of global warming, and the desire to diversify energy supply. In order for the nuclear renaissance to be safely realized, a number of concerns must first be addressed. Foremost among them are the …
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Rethinking the light water reactor fuel cycle
The once through nuclear fuel cycle adopted by the majority of countries with operating commercial power reactors imposes a number of concerns. The radioactive waste created in the once through nuclear fuel cycle has to be isolated from the environment for thousands of years. In addition, plutonium …
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Optimization of time and location dependent spent nuclear fuel storage capacity
In this study a linear spent fuel storage model is developed to identify cost-effective spent nuclear fuel storage strategies. The purpose of this model is to provide guidelines for the implementation of the optimal time-dependent spent fuel storage capacity expansion in view of the current …
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Life Cycle Analysis of Greenhouse Gas Emissions from the Mining and Milling of Uranium in Saskatchewan
This thesis presents a detailed study of life cycle greenhouse gas (GHG) emissions intensity during the uranium mining-milling phase of the nuclear fuel cycle for three paired uranium mine-mill operations in northern Saskatchewan (SK). The study period runs from 2006 – 2013 for two of the three …
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Molecular dynamics simulation and topological analysis of the network structure of actinide-bearing materials
… and storage is a complex problem, and a whole-cycle approach to actinide management is necessary to minimize the total volume of waste. In this dissertation, I examine three actinide-bearing materials relevant to both the front end and back end of the nuclear fuel cycle: light water reactor …
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The Immobilisation of Radioactive Wastes
… sources and categories of waste generated in the nuclear fuel cycle. The practices presently used in the UK are described and the rates of production of the different categories of waste are given. The areas where research is needed to satisfy environmental considerations and public concern are …
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Modeling the technical means to produce nuclear weapons for providing accurate decision-making timetables
… and academic institutions that focus on nuclear nonproliferation have demonstrated a limited capability to make comprehensive assessments of how far along a state is in the proliferation process. This deficiency exists despite the need to improve programmatic assessments of states that …
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