Resource Type

Critical-fluid extraction of organics from water. Volume II. Experimental. Final report, 1 October 1979-30 November 1983 (open access)

Critical-fluid extraction of organics from water. Volume II. Experimental. Final report, 1 October 1979-30 November 1983

Critical fluid extraction has been tested at the pilot plant scale as a method of separating organics from water. The process employed resembles a liquid-liquid extraction in which the solvent is near-critical carbon dioxide and the feed is an organic in aqueous solution. Carbon dioxide's solvent and other thermodynamic properties, and the effective utilization of a vapor recompression cycle in the process design have significantly reduced the energy required for these separations. This process is an energy-conserving alternative to the distillation processes which are currently employed. The objectives of this portion of the project were to demonstrate the feasibility of this technology and to gather the engineering data required to evaluate the process. Three alcohols were tested in these experiments - ethanol, isopropanol and sec-butanol - and were all successfully extracted.
Date: June 1, 1984
Creator: Abboud, O. K.; de Filippi, R. P.; Goklen, K. E. & Moses, J. M.
System: The UNT Digital Library
Magnetic Fusion Energy Plasma Interactive and High Heat Flux Components. Volume II. Technical Assessment of the Critical Issues and Problem Areas in High Heat Flux Materials and Component Development (open access)

Magnetic Fusion Energy Plasma Interactive and High Heat Flux Components. Volume II. Technical Assessment of the Critical Issues and Problem Areas in High Heat Flux Materials and Component Development

A technical assessment of the critical issues and problem areas for high heat flux materials and components (HHFMC) in magnetic fusion devices shows these problems to be of critical importance for the successful operation of near-term fusion experiments and for the feasibility and attractiveness of long-term fusion reactors. A number of subgroups were formed to assess the critical HHFMC issues along the following major lines: (1) source conditions, (2) systems integration, (3) materials and processes, (4) thermal hydraulics, (5) thermomechanical response, (6) electromagnetic response, (7) instrumentation and control, and (8) test facilities. The details of the technical assessment are presented in eight chapters. The primary technical issues and needs for each area are highlighted.
Date: June 1, 1984
Creator: Abdou, M. A.; Boyd, R. D.; Easor, J. R.; Gauster, W. B.; Gordon, J. D.; Mattas, R. F. et al.
System: The UNT Digital Library
Geotechnical characteristics of bentonite/sandy silt mixes for use in waste disposal sites (open access)

Geotechnical characteristics of bentonite/sandy silt mixes for use in waste disposal sites

The coefficient of consolidation for bentonite/sandy silt ratios of 0.04 to 0.14 decreases inversely proportional with the square of that ratio, whereas the compression index, the swelling index, and the permeability change index increase with increasing bentonite ratio. A strong relationship also exists between the void ratio and the logarithm of the applied stress for any given bentonite ratio. The empirical linear relationship between the void ratio and the logarithm of the applied stress, developed by Taylor, is excellent and enables us to limit the evaluation of conductivity at any void ratio to the measurement of the initial and the desired void ratio, the initial conductivity, and the permeability change index. This allows us to read directly, for a given bentonite ratio, the void ratio (or compaction) needed so that a required hydraulic conductivity will prevail. This is crucial in the choice of materials or mixes to be used in a wick system where an established differentiation in hydraulic conductivity is desirable.
Date: June 1, 1984
Creator: Abeele, W. V.
System: The UNT Digital Library
Finite element investigation of thermo-elastic and thermo-plastic consolidation (open access)

Finite element investigation of thermo-elastic and thermo-plastic consolidation

The transient response of saturated continua due to thermal as well as mechanical loads is investigated in both elastic and plastic ranges. When the two phase saturated media are subjected to thermomechanical loading, the energy equation is coupled with the mass flow and solid deformation equations resulting in the initial boundary value problem of thermal consolidation. The solid behavior may be assumed to be either elastic or elastoplastic leading to the associated theories of thermoelastic and thermoelastoplastic consolidation. The governing equations for the quasi-static infinitesimal theory of thermoelastic consolidation are developed by using the theory of mixtures. An equivalent variational principle is developed along with associated finite element formulations. Two isoparametric elements of the composite type are employed for the spatial discretization. The formulation is extended to the plastic ranges by modeling the solid phase as an elastic work hardening material with an associated flow rule. An incremental iterative scheme is developed to solve this nonlinear transient problem. Several special purpose computer codes are developed for evaluating the isothermal, thermal, elastic and elastoplastic plane strain consolidation responses. These codes have been evaluated against limiting cases available in the literature. The effects of temporal and spatial interpolation schemes are investigated for …
Date: June 1, 1984
Creator: Aboustit, B. L.
System: The UNT Digital Library
Stress corrosion cracking tests on high-level-waste container materials in simulated tuff repository environments (open access)

Stress corrosion cracking tests on high-level-waste container materials in simulated tuff repository environments

Types 304L, 316L, and 321 austenitic stainless steel and Incoloy 825 are being considered as candidate container materials for emplacing high-level waste in a tuff repository. The stress corrosion cracking susceptibility of these materials under simulated tuff repository conditions was evaluated by using the notched C-ring method. The tests were conducted in boiling synthetic groundwater as well as in the steam/air phase above the boiling solutions. All specimens were in contact with crushed Topopah Spring tuff. The investigation showed that microcracks are frequently observed after testing as a result of stress corrosion cracking or intergranular attack. Results showing changes in water chemistry during test are also presented.
Date: June 1, 1986
Creator: Abraham, T.; Jain, H. & Soo, P.
System: The UNT Digital Library
Legal Analysis of President Reagan's Proposed Constitutional Amendment on School Prayer (open access)

Legal Analysis of President Reagan's Proposed Constitutional Amendment on School Prayer

Congressional Research Service (CRS) report for Congress entailing a legal analysis of President Reagan's proposed constitutional amendment on school prayers. Topics include, interpretation of the first amendment, prayer activities in schools, supreme court decisions etc..
Date: June 2, 1982
Creator: Ackerman, David M.
System: The UNT Digital Library
Advanced Fuel Cell Development Progress Report: July-September 1983 (open access)

Advanced Fuel Cell Development Progress Report: July-September 1983

Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes activities seeking alternative cathode materials to NiO for molten carbonate fuel cells.
Date: June 1984
Creator: Ackerman, J. P.; Pierce, Robert Dean; Nelson, P. A. & Arons, R. M.
System: The UNT Digital Library
Advanced Fuel Cell Development Progress Report: July-September 1984 (open access)

Advanced Fuel Cell Development Progress Report: July-September 1984

Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes studies directed toward seeking alternative cathode materials to NiO for molten carbonate fuel cells.
Date: June 1985
Creator: Ackerman, J. P.; Pierce, Robert Dean; Nelson, P. A. & Arons, R. M.
System: The UNT Digital Library
Stratigraphy and structure of the McCoy geothermal prospect, Churchill and Lander Counties, Nevada (open access)

Stratigraphy and structure of the McCoy geothermal prospect, Churchill and Lander Counties, Nevada

The McCoy geothermal system straddles the border of Lander and Churchill counties, central Nevada, in the middle of the Basin and Range Province. The study area occupies approximately 100 sq. km. near the intersection of the Augusta and Clan Alpine Mountains and the New Pass Range. The geology of the area is dominated by rhyolite ash-flow tuffs and subordinate intermediate-composition lava flows of Oligocene age. These volcanics were emplaced on Permo-Pennsylvanian massive cherts and Triassic dolomitic limestones. At least two episodes of hydrothermal activity can be recognized at McCoy. The oldest event altered and mineralized the volcanic and sedimentary rocks, producing the McCoy and Wild Horse mercury deposits. The youngest event produced travertine and siliceous sinter deposits which intercalate with alluvium, and appears to be related to the high heat flow found at the McCoy prospect. The oldest recognized faults at McCoy produced several east-west grabens and horsts. These fault zones were active before and during the deposition of the volcanics. The Wild Horse and McCoy mercury mines occur along one of these east-west fault zones. Basin and Range faulting began subsequent to 23 m.y. ago, and produced a complex array of polygonal blocks which were subsequently eroded into subparallel …
Date: June 1, 1982
Creator: Adams, M. C.
System: The UNT Digital Library
Retrospective analysis of energy use and conservation trends: 1972-1982 (open access)

Retrospective analysis of energy use and conservation trends: 1972-1982

The primary objective of the research reported here is to analyze energy use trends for the entire economy and by end-use sector (residential, commercial, and industrial, and transportation). In particular, an examination of energy trends was undertaken for the period 1972 through 1982 to determine the magnitude of ''energy savings'' attributable to: (1) changes in economic activity; (2) efficiency improvements relative to the 1972 stock (including structures and capital equipment); and (3) efficiency improvements relative to 1960 to 1972 trends. In addition to identifying the measures of energy savings described above, the causes of efficiency improvement relative to 1972 are explored. For example, energy savings due to efficiency improvements in the residential sector are explained by such activities as changes in household size, migration, improved shell and appliance efficiencies, and increased wood use. For this research, Pacific Northwest Laboratory (PNL) developed a consistent methodology for analyzing energy use trends by end-use sector. Alternative measures of energy use trends (i.e., alternative base cases) were developed for the purpose of measuring energy savings. The energy use trends were calculated as the product of economic activity levels (number of households in the residential sector, square feet of floor space in the commercial sector, …
Date: June 1, 1985
Creator: Adams, R. C.; Belzer, D. B.; Fang, J. M.; Imhoff, K. L.; Lax, D. H.; Moe, R. J. et al.
System: The UNT Digital Library
Retrospective analysis of energy use and conservation trends: 1972-1982. Appendix (open access)

Retrospective analysis of energy use and conservation trends: 1972-1982. Appendix

This appendix contains the detailed documentation corresponding to the end-use sectoral analyses presented in the main report. The data and methods used to calculate alternative scenarios for estimating energy savings in four economic sectors are provided in this volume. Appendix A contains the detailed documentation for the residential sector analysis. The methodology used to prepare estimates of building energy savings in the commercial sector is provided in Appendix B. Finally, Appendices C and D discuss the data and explain the analytical techniques used to derive estimates of energy savings in the industrial and transportation sectors, respectively. 9 refs., 14 figs., 86 tabs.
Date: June 1, 1985
Creator: Adams, R. C.; Belzer, D. B.; Fang, J. M.; Imhoff, K. L.; Lax, D. H.; Moe, R. J. et al.
System: The UNT Digital Library
The 1987 Federal field exercise: The DOE experience (open access)

The 1987 Federal field exercise: The DOE experience

The second full-scale field exercise of the Federal Radiological Emergency Response Plan (FRERP) was held at the Zion Nuclear Power Station, Zion, Illinois, in June 1987. The exercise incorporated the annual compliance exercise for the Zion plant and involved the operating utility, Commonwealth Edison Company, the states of Illinois and Wisconsin, local governments, volunteer groups, and representatives from 12 federal agencies. The 3-day exercise was played from many locations in the Zion area; Springfield, Illinois; Madison, Wisconsin; and Washington, DC. Approximately 1000 people participated in the exercise, which used a scenario in which an accident at the plant resulted in the release of radioactive material outside the plant boundary. The US Department of Energy (DOE) had major responsibilities during the planning, playing, and critiquing of the exercise; these functions are outlined in the report. This document describes the DOE participation in the planning and response during the exercise. During a radiological emergency, the FRERP gives DOE the responsibility for coordinating the federal radiological monitoring and assessment activities in support of the states and the cognizant federal agency. At Zion, a self-sufficient Federal Radiological Monitoring and Assessment Center was established by DOE at a nearby fairground in which over 200 people …
Date: June 1, 1989
Creator: Adler, M.V. & Gant, K.S.
System: The UNT Digital Library
A Special Report to the State Board of Education, From the Advisory Counsil For technical-vocational Education in Texas (open access)

A Special Report to the State Board of Education, From the Advisory Counsil For technical-vocational Education in Texas

Report outlining recommendations from the Advisory Council for Technical-Vocational Education in Texas, based on public input, regarding potential legislation or appropriations to improve vocational education and other services.
Date: June 24, 1980
Creator: Advisory Council for Technical-Vocational Education in Texas
System: The Portal to Texas History
Discrete-event simulation of nuclear-waste transport in geologic sites subject to disruptive events. Final report (open access)

Discrete-event simulation of nuclear-waste transport in geologic sites subject to disruptive events. Final report

This report outlines a methodology to study the effects of disruptive events on nuclear waste material in stable geologic sites. The methodology is based upon developing a discrete events model that can be simulated on the computer. This methodology allows a natural development of simulation models that use computer resources in an efficient manner. Accurate modeling in this area depends in large part upon accurate modeling of ion transport behavior in the storage media. Unfortunately, developments in this area are not at a stage where there is any consensus on proper models for such transport. Consequently, our work is directed primarily towards showing how disruptive events can be properly incorporated in such a model, rather than as a predictive tool at this stage. When and if proper geologic parameters can be determined, then it would be possible to use this as a predictive model. Assumptions and their bases are discussed, and the mathematical and computer model are described.
Date: June 19, 1980
Creator: Aggarwal, S.; Ryland, S. & Peck, R.
System: The UNT Digital Library
Advanced Reactor Safety Research Division. Quarterly Progress Report, January 1-March 31, 1980 (open access)

Advanced Reactor Safety Research Division. Quarterly Progress Report, January 1-March 31, 1980

The Advanced Reactor Safety Research Programs quarterly progress report describes current activities and technical progress in the programs at Brookhaven National Laboratory sponsored by the USNRC Division of Reactor Safety Research. The projects reported each quarter are the following: HTGR Safety Evaluation, SSC Code Development, LMFBR Safety Experiments, and Fast Reactor Safety Code Validation.
Date: June 1, 1980
Creator: Agrawal, A. K.; Cerbone, R. J. & Sastre, C.
System: The UNT Digital Library
Corrosion and materials selection report update non-proprietary version. Final technical report (open access)

Corrosion and materials selection report update non-proprietary version. Final technical report

The revised Baseline design (dated 22 October, 1982) used most of the available information with regard to the corrosion, erosion and materials of construction. This information was collected through various programs conducted at the major coal liquefaction pilot plants, e.g. SRC-1 and SRC-2, H-Coal and EDS, and at various research laboratories. The selection of materials of construction was also based on certain basic assumptions with regard to the plant life and life of each type of equipment. Other selection criteria included various process considerations and economics. In cases where no data on corrosion and erosion was available, past experience, licensors' knowhow and engineering judgement, were utilized in the selection process. Beyond the date of publication of the revised Baseline document, additional data from various pilot plants and lab programs has been made available. On account of continuous review being performed by DOE and their subcontractors and consultants, a number of comments were forwarded to ICRC. These comments and latest developmental programs suggested several improvements in the design. This report consists of the following major sections: A discussion on corrosion/erosion related research and pilot plant programs; the materials selection criterion, including plant and equipment life, and various process considerations, are discussed …
Date: June 1, 1984
Creator: Agrawal, P.D.
System: The UNT Digital Library
Japan: Prospects for Greater Market Openness (open access)

Japan: Prospects for Greater Market Openness

Japan has made considerable progress in opening its economy to imports, but significant obstacles remain. This report analyzes the underlying causes of Japan's market protection and assesses the prospects for Japan moving in the direction of greater market openness.
Date: June 26, 1989
Creator: Ahearn, Raymond J.
System: The UNT Digital Library
Laser fusion experiments at LLL (open access)

Laser fusion experiments at LLL

These notes present the experimental basis and status for laser fusion as developed at LLL. Two other chapters, one authored by K.A. Brueckner and the other by C. Max, present the theoretical implosion physics and laser plasma interaction physics. The notes consist of six sections. The first is an introductory section which provides some of the history of inertial fusion and a simple explanation of the concepts involved. The second section presents an extensive discussion of diagnostic instrumentation used in the LLL Laser Fusion Program. The third section is a presentation of laser facilities and capabilities at LLL. The purpose here is to define capability, not to derive how it was obtained. The fourth and fifth sections present the experimental data on laser-plasma interaction and implosion physics. The last chapter is a short projection of the future.
Date: June 16, 1980
Creator: Ahlstrom, H.G.
System: The UNT Digital Library
Conrail Sale: Labor Aspects (open access)

Conrail Sale: Labor Aspects

This report presents the issues discussed by Congress in regard to Conrail’s sale. In examining the issues in Conrail's sale, Congress most likely will consider the welfare of Conrail employees as affected by the terms and conditions of the sale. Should negotiations on labor conditions with the final bidder fail, Congress might be asked to include labor conditions as part of any legislation related to the sale of Conrail.
Date: June 27, 1985
Creator: Ahmuty, Alice L
System: The UNT Digital Library
Intermediate-field transport of contaminants (open access)

Intermediate-field transport of contaminants

This report is about intermediate-field'' transport or the migration of contaminants from arrays of discrete waste packages or sources. In constructing nuclear waste repositories in rock, it may be necessary to place a waste package across a rock fracture, or a rock fracture may develop some time after waste packages have been emplaced. To predict the spatial and temporal distribution of contaminant species from a line of waste packages facing a rock fracture may be important, because such fractures may now be considered a preferential pathway for released radionuclides to re-enter the biosphere. In land disposal of hazardous wastes, individual barrels may contain especially toxic material whose dispersion special attention. We have published analytic solutions for the multidimensional advective transport of contaminants from arrays of waste packages and multiple areal sources into a planar fracture. The results show a near region in which the concentrations vary greatly in the direction transverse to ground-water flow, an intermediate region in which the array can be treated as an infinite plane source of dissolving species, and a far-field region in which the array can be treated as a plane source of finite extent. The array equations have been developed for both porous and …
Date: June 1, 1989
Creator: Ahn, J. (Tokyo Univ. (Japan)); Kim, C. L. (Korea Advanced Energy Research Inst., Seoul (Republic of Korea)); Chambre, P. L.; Pigford, T. H. & Lee, W. W. L. (California Univ., Berkeley, CA (USA). Dept. of Nuclear Engineering Lawrence Berkeley Lab., CA (USA))
System: The UNT Digital Library
Patterns of fish assemblage structure and dynamics in waters of the Savannah River Plant. Comprehensive Cooling Water Study final report (open access)

Patterns of fish assemblage structure and dynamics in waters of the Savannah River Plant. Comprehensive Cooling Water Study final report

Research conducted as part of the Comprehensive Cooling Water Study (CCWS) has elucidated many factors that are important to fish population and community dynamics in a variety of habitats on the Savannah River Plant (SRP). Information gained from these studies is useful in predicting fish responses to SRP operations. The overall objective of the CCWS was (1) to determine the environmental effects of SRP cooling water withdrawals and discharges and (2) to determine the significance of the cooling water impacts on the environment. The purpose of this study was to: (1) examine the effects of thermal plumes on anadromous and resident fishes, including overwintering effects, in the SRP swamp and associated tributary streams; (2) assess fish spawning and locate nursery grounds on the SRP; (3) examine the level of use of the SRP by spawning fish from the Savannah River, this objective was shared with the Savannah River Laboratory, E.I. du Pont de Nemours and Company; and (4) determine impacts of cooling-water discharges on fish population and community attributes. Five studies were designed to address the above topics. The specific objectives and a summary of the findings of each study are presented.
Date: June 1, 1986
Creator: Aho, J. M.; Anderson, C. S.; Floyd, K. B.; Negus, M. T. & Meador, M. R.
System: The UNT Digital Library
Geologic and hydrologic research at the Western New York Nuclear Service Center, West Valley, New York: final report (open access)

Geologic and hydrologic research at the Western New York Nuclear Service Center, West Valley, New York: final report

"This report is the last in a series by the New York State Geological Survey on studies funded by the U.S. Nuclear Regulatory Commission. The report covers five important aspects of the geology and hydrology of the Western New York Nuclear Service Center, near West Valley, New York: geomorphology, stratigraphy, sedimentology, surface water, and radionuclide analyses. We reviewed past research on these subjects and present new data obtained in the final phase of NYSGS research at the site. Also presented are up-to-date summaries of the present knowledge of geomorphology and stratigraphy."
Date: June 1984
Creator: Albanese, J. R.; Anderson, S. L.; Fakundiny, Robert H.; Potter, S. M.; Rogers, W. B. & Whitbeck, L. F.
System: The UNT Digital Library
Evolution of cosmic string networks (open access)

Evolution of cosmic string networks

We summarize our new results on cosmic strings. These results include: the application of non-equilibrium statistical mechanics to cosmic string evolution, a simple ''one scale'' model for the long strings which has a great deal of predictive power, results from large scale numerical simulations, and a discussion of the observational consequences of our results. An upper bond on G/mu/ of approximately 10/sup /minus/7/ emerges from the millisecond pulsar gravity wave bound. We discuss how numerical uncertainties affect this. Any changes which weaken the bound would probably also give the long strings the dominant role in producing observational consequences. 22 refs.
Date: June 1, 1989
Creator: Albrecht, Andreas & Turok, Neil
System: The UNT Digital Library
Fluidized-Bed Retorting of Colorado Oil Shale: Topical Report. (open access)

Fluidized-Bed Retorting of Colorado Oil Shale: Topical Report.

In support of the research program in converting oil shale into useful forms of energy, the US Department of Energy is developing systems models of oil shale processing plants. These models will be used to project the most attractive combination of process alternatives and identify future direction for R and D efforts. With the objective of providing technical and economic input for such systems models, Foster Wheeler was contracted to develop conceptual designs and cost estimates for commercial scale processing plants to produce syncrude from oil shales via various routes. This topical report summarizes the conceptual design of an integrated oil shale processing plant based on fluidized bed retorting of Colorado oil shale. The plant has a nominal capacity of 50,000 barrels per operating day of syncrude product, derived from oil shale feed having a Fischer Assay of 30 gallons per ton. The scope of the plant encompasses a grassroots facility which receives run of the mine oil shale, delivers product oil to storage, and disposes of the processed spent shale. In addition to oil shale feed, the battery limits input includes raw water, electric power, and natural gas to support plant operations. Design of the individual processing units was …
Date: June 1987
Creator: Albulescu, P. & Mazzella, G.
System: The UNT Digital Library