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.
Results
Showing 1 to 20 of 26 for “"high level nuclear waste"”.
-
Water borne transport of high level nuclear waste in very deep borehole disposal of high level nuclear waste
… if it is a reasonable method of storing high level nuclear waste for an extended period of time. The objective of this thesis is to determine the escape mechanisms of radionuclides and to determine if naturally occurring salinity gradients could counteract this phenomenon. Because of the …
-
Risk-informing decisions about high-level nuclear waste repositories
… sources of information for societal decisions in high-level radioactive waste (HLW) management, particularly in evaluating safety cases for proposed HLW repository development. Assessing risk from geologic repositories for HLW poses a significant challenge due to the uncertainties in modeling …
-
Evaluation of deep drillholes for high level nuclear waste disposal
… Institute of Technology, Dept. of Nuclear Engineering, 1992.
-
Fear itself: Assessing the risks of transporting high-level nuclear waste
… as they apply to the problem of transporting high level radioactive waste to Yucca Mountain, NV. Risk assessment, a lineal descendant of cost-benefit analysis, is an increasingly popular tool for justifying policy or programmatic decisions that involve some potential for public harm. The study …
-
Optimization of deep boreholes for disposal of high-level nuclear waste
… of deep borehole disposal (DBD), where spent nuclear fuel (SNF) is isolated at depths of several km in basement rock. Improvements to the engineered components of the DBD concept (e.g., plug, canister, and fill materials) are presented. Reference site parameters and models for radionuclide …
-
Heat transfer in vertical concentric cylinders in a high level nuclear waste repository
… and an important problem to be addressed in the high level nuclear waste repository. The waste containers are vertically emplaced in the borehole 300 meters below ground. and in a horizontal grid of 30 x 8 meters apart. The borehole will be capped after the container emplacement and the container …
-
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 …
-
Thermal considerations in the drift due to the emplacement of a horizontal high level nuclear waste container
… is investigating the feasibility of locating a high level radioactive nuclear waste repository at Yucca Mountain, Nevada. The design of waste containers to be used for the long term storage of the high level nuclear waste has progressed from the borehole model indicated in the original site …
-
The thermal conductivity of filler materials and permeability of a cement sealant for deep borehole repositories for high level nuclear waste
… obligated to begin the removal of spent nuclear fuel from reactor sites by the year 2020 at the risk of increased liabilities. The Blue Ribbon Commission on America's Nuclear Future proposed in 2012 that further development is necessary for geological repositories for spent nuclear fuel …
-
Risky business: Moral arguments againts the Nuclear Waste Policy Act Amendments of 1987 Can consent be engineered?
Risky Business: Moral Arguments Against the Nuclear Waste Policy Act Amendments of 1987, Can Consent Be Engineered? asks the moral and ethical questions of assigning risk. In a democracy a fundamental principle for imposing risk is obtaining the consent of the governed. In the case of a proposed …
-
The relationship of the Yucca Mountain repository block to the regional groundwater system: A geochemical model
… of Energy and the State of Nevada as the site of high-level nuclear waste repository. Geochemical and isotopic modeling were used in this thesis to define the relationship of the volcanic tuff aquifers and aquitards to the underlying regional carbonate ground-water system. The chemical evolution …
-
Housing location decision under environmental risk: The effects of the Yucca Mountain waste repository
Yucca Mountain is the site of a potential high-level nuclear waste repository in Nevada. The risks to health and safety of transporting and storing nuclear waste at Yucca Mountain may induce the residents of Nevada to move. When offered compensation, residents will weigh potential negative effects …
-
Analysis and evaluation of three promising nuclear waste disposal options
Disposal of high level nuclear waste has evoked much interest among scientists, engineers and society at large. Numerous schemes have been proposed in this regard and a few have been analyzed thoroughly. However, these schemes have been found to be valid only under very specific environmental …
-
Impact assessment using geographic information system (Gis): Transportation engineering applications
… chosen as the site of a proposed repository for high level nuclear waste. This proposed siting has motivated the study of potential transportation related impacts. GIS may be used to facilitate assessment of potentially affected populations, environmentally sensitive areas, property values, land …
-
Mechanical properties of tuffaceous rocks under triaxial conditions
… has been designated as a potential site for a high level nuclear waste repository. Part of the site characterization program is an investigation of the mechanical properties of the tuffs which comprise Yucca Mountain. The study tested specimens of TCw tuff in triaxial compression to observe the …
-
Nuclear oasis : the story of 10,000-year-old trash
Each year, we produce 9,000 metric tons of high-level nuclear waste to add to the other 250,000 that have accumulated over the last few decades. While there are no clear plans for its permanent storage, one thing remains certain: it will outlive us all and everything we know. Current laws stipulate …
-
Effective thermal conductivity measurements relevant to deep borehole nuclear waste disposal
… for use in and around canisters for disposal of high level nuclear waste in deep boreholes. This information is required to insure that waste temperatures will not exceed tolerable limits. Such experimental verification is essential because analytical models and empirical correlations can not …
-
Quantifying Iodine-129 Environmental Releases and Surface Water Concentrations at Nuclear Fuel Recycling Facilities
… of the largest long-term dose contributors in high-level nuclear waste disposal models, and an important contaminant at sites currently undergoing remediation like Savannah River and Hanford. This is in part due to its environmental mobility, its 15.7 million-year half-life, and its potential …
-
Enhancing trust in US nuclear waste management institutions
… solution has led to the accumulation of spent nuclear fuel and high-level radioactive waste material at nuclear power plants and former weapons manufacturing facilities. This situation poses a growing long-term public safety hazard, and it hampers the possibility of a revival of commercial …
-
A drop-in-concept for deep borehole canister emplacement
Disposal of high-level nuclear waste in deep boreholes drilled into crystalline bedrock (i.e., "granite") is an interesting repository alternative of long standing. Work at MIT over the past two decades, and more recently in collaboration with the Sandia National Laboratory, has examined a broad …
Page 1 of 2