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Office of Scientific & Technical Information Technical Reports
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169
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133
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126
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Applications of induction linac technology to heavy ion fusion
Evaluation of the application of heavy ion accelerators to ignite d-t pellets in a thermonuclear reactor is discussed. Accelerator design requirements considered include transport-limited current, beam injection conditions, and pulse bunching and focusing characteristics. The desirability of resonant and non-resonant accelerating structures is comparatively examined. The required power system switch tubes are discussed. It is concluded that heavy ion accelerators could offer a promising solution to the pellet-igniter problem. The advantages pointed out for this approach include electric efficiency greater than 10 percent, the possibility of high repetition rates (1 to 10 Hz), and a mature technological base. (RME)
Date:
July 1, 1977
Creator:
Faltens, A. & Keefe, D.
Object Type:
Article
System:
The UNT Digital Library
Solar-thermal energy conversion and storage: cyclohexane dehydrogenation. Progress report, 30 September 1977-30 June 1978
The objective of this project is to provide research support for the benzene/cyclohexane heat pipe development program at Sandia. The kinetics of the cyclohexane decomposition (energy collection) reaction over a commercially available naphtha reforming catalyst (RD-150, Englehard Industries) in the temperature range 400 to 800/sup 0/F and pressures of 1 to 40 atmospheres were measured. Significant amounts of side products such as toluene and butane were identified at temperatures above 550/sup 0/F at atmospheric pressure and significant mass transfer limitations on conversions were observed at the higher space velocities and higher temperatures. No significant decreases in catalyst activity were measured at temperatures below 800/sup 0/F. However, at 800/sup 0/F there was a significant decrease in catalyst activity which does not appear to be a poisoning problem but a thermal limitation on catalyst effectiveness. A test facility has been fabricated to study the behavior of the benzene/cyclohexane (or any other gas phase catalytic reaction) system and its catalysts under long term cycling at temperatures up to 1000/sup 0/F, and pressures up to 1000 psig at a wide variety of space velocities. A mathematical model was developed which simulates the dynamic behavior of the collector (endothermic) reactor and allows the evaluation of …
Date:
July 1, 1978
Creator:
Ritter, A.B.; DeLancey, G.B.; Schneider, J. & Silla, H.
Object Type:
Report
System:
The UNT Digital Library
Scoping Report on Various Salt Mines in the United States
One of the most important factors in isolating the demonstration waste storage site is an adequate number of shafts to insure proper ventilation. Proper ventilation will require that the air exhausted from the storage area pass directly to the upcast air shaft. Those mines reported by this scoping contract generally conform with the two shafts per mine requirement of MESA. Three of the mines reported on have more than two shafts. Several of the mines can have additional shafts drilled in time to meet ERDA's schedule. Rough drilling costs have been cited in the report. From an economic standpoint, it is probable that the larger the mine, the greater the economic impact with regard to any dislocation of production that may be required. In some cases, such as the Retsof Mine and the Cayuga Mine, multiple shafts eliminate the probability of dislocation. Those small tonnage mines such as the Kleer at Grand Saline, Texas; the Hockley Mine near Houston and the Lyons Mine of the American Salt Company might be leased or purchased in their entirety.
Date:
July 1977
Creator:
Jacoby, C. H.
Object Type:
Report
System:
The UNT Digital Library
Industrial Fuel Gas Demonstration Plant Program. Monthly and quarterly progress report, 1 April 1978-30 June 1978 (Deliverable No. 12)
The design of the commercial plant was completed and a cost estimate prepared. Most work remaining on Task I relates to: Demonstration Plant recommendations and includes a configuration study, at DOE's request, to evaluate alternatives for the Demo Plant Configuration to achieve the required reliability. The specific alternatives being considered are: A base U-Gas Plant designed to produce 50 MMM Btu/day 365 days per year (the High Reliability case); a base U-Gas Plant plus product storage; and a base U-Gas Plant, plus a small methanation facility to upgrade a small portion of the product to obtain credits. Other studies in support of the demonstration plant recommendations include: economic study of U-Gas versus coal-fired boilers for internal steam generation; an assessment of the cost/benefit of designing the Demo Plant for an operating pressure higher than the current data allows; and evaluation of the costs of providing a zero discharge wastewater treatment system.
Date:
July 1, 1978
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Pacific Northwest Laboratory Report on Fusion Energy Research, April 1977 - June 1977
The development of economic data for fusion power plants continued in a study estimating the potential impact of a shortage of materials important in fusion plant construction. In studies developing heat transfer and fluid flow design tools for fusion reactor blankets, preconceptual design studies were initiated to identify the potential design limits of water cooling in the first wall of Tokamak Next Step (TNS) concepts. In surface effects research clean gold samples were irradiated in the University of California (D,Be) neutron source for a neutron sputtering experiment. Light ion and neutron irradiation experiments have continued in studies of the effects of radiation on mechanical properties. The hardening response of 14 MeV neutron-irradiated nickel changed at high particle fluences (10/sup 16/ to 10/sup 17/ particles/cm/sup 2/) while the hardening response of 16 MeV proton-irradiated nickel did not, which may have been due to a difference in irradiation hardening mechanisms. The flux dependence of the damage microstructure and irradiation hardening of materials needs further study to clarify uncertainty about light ion and fusion neutron damage processes. Neutron irradiations of Ni, 316SS, and Nb wires and foils were completed. Work has continued in studies developing acoustic emission (AE) techniques for determining the prebreakdown …
Date:
July 1, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Chemical Engineering Division. Coal technology semiannual report, January--June 1975. [Coal gasification; catalytic activity of coal ash]
None
Date:
July 1, 1975
Creator:
Fischer, J.; Che, S.; Lo, R.; Nandi, S.; Young, J. & Jonke, A.
Object Type:
Report
System:
The UNT Digital Library
Polymer-concrete composites for energy related systems. Progress report No. 5, April--June 1975. [Testing in the Geysers geothermal field]
None
Date:
July 1, 1975
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Preliminary design data package. Appendices C1 and C3. [HYBRID 2; VSYS; and CRASH]
The computer programs, including HYBRID, VSYS, VEHIC and CRASH, used to compute the energy and fuel consumption, life-cycle costs and performance characteristics of a hybrid electric-powered vehicle are described and their use documented. (LCL)
Date:
July 25, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Study on reduction of accessory horsepower requirements. Eighth quarterly progress report
This is the eighth quarterly technical progress report for a program in which the objective is to evolve and define an accessory drive system that will minimize system power consumption of driven accessories on an internal combustion engine in a passenger automobile. The initial program phases established concept feasibility, determined potential fuel savings, and selected a drive system design for concept mechanization. The current Phase IV carries the program through prototype fabrication and bench, engine, and vehicle tests. The final program objective is a detail drive system design and a demonstrated overall vehicle fuel savings potential. The major technical accomplishments during this reporting period were: the test vehicle was successfully driven to and from Ann Arbor, Michigan from Phoenix with the drive system installed; accessory drive hardware was calibrated, disassembled and reviewed for wear after round trip from Phoenix to Ann Arbor, Michigan; MADS governor performance was analyzed and parameters were varied to demonstrate flexibility available in modifying accessory drive input/output characteristics; and a task list that matched smaller, lower cost accessory components, with the accessory drive equipped vehicle, was prepared. Major emphasis during the remainder of the program will be in this area. (LCL)
Date:
July 31, 1976
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Technical-economic assessment of the production of methanol from biomass. Executive summary. Final research report
The results are presented of a comprehensive systems study which assessed the engineering and economic feasibilities of the production of methanol from biomass utilizing existing technology. The three major components of the biomass to methanol system assessed are the availability of biomass feedstocks, the thermochemical conversion of biomass to methanol fuels, and the distribution and markets for methanol fuels. The results of this study show that methanol fuel can be produced from biomass using commercially available technology in the near term, and could be produced economically in significant quantities in the mid-to-late 1980's when advanced technology is available.
Date:
July 12, 1979
Creator:
Wan, E. I.; Simmons, J. A.; Price, J. D. & Nguyen, T. D.
Object Type:
Report
System:
The UNT Digital Library
Transport of solid commodities via freight pipeline: demand analysis methodology. Volume IV. First year final report
In order to determine the feasibility of intercity freight pipelines, it was necessary to determine whether sufficient traffic flows currently exist between various origins and destinations to justify consideration of a mode whose operating characteristics became competitive under conditions of high-traffic volume. An intercity origin/destination freight-flow matrix was developed for a large range of commodities from published sources. A high-freight traffic-density corridor between Chicago and New York and another between St. Louis and New York were studied. These corridors, which represented 18 cities, had single-direction flows of 16 million tons/year. If trans-shipment were allowed at each of the 18 cities, flows of up to 38 million tons/year were found in each direction. These figures did not include mineral or agricultural products. After determining that such pipeline-eligible freight-traffic volumes existed, the next step was to determine the ability of freight pipeline to penetrate such markets. Modal-split models were run on aggregate data from the 1967 Census of Transportation. Modal-split models were also run on disaggregate data specially collected for this study. The freight pipeline service characteristics were then substituted into both the aggregate and disaggregate models (truck vs. pipeline and then rail vs. pipeline) and estimates of pipeline penetration into particular …
Date:
July 1, 1976
Creator:
Allen, W.B. & Plaut, T.
Object Type:
Report
System:
The UNT Digital Library
Preliminary report on the promise of accelerator-driven natural-uranium-fueled light-water-moderated breeding power reactors
A new concept for a power breeder reactor that consists of an accelerator-driven subcritical thermal fission system is proposed. In this system an accelerator provides a high-energy proton beam which interacts with a heavy-element target to produce, via spallation reactions, an intense source of neutrons. This source then drives a natural-uranium-fueled, light-water-moderated and -cooled subcritical blanket which both breeds new fuel and generates heat that can be converted to electrical power. The report given presents a general layout of the resulting Accelerator Driven Light Water Reactor (ADLWR), evaluates its performance, discusses its fuel cycle characteristics, and identifies the potential contributions to the nuclear energy economy this type of power reactor might make. A light-water thermal fission system is found to provide an attractive feature when designed to be source-driven. The equilibrium fissile fuel content that gives the highest energy multiplication is approximately equal to the content of /sup 235/U in natural uranium. Consequently, natural-uranium-fueled ADLWRs that are designed to have the highest energy generation per source neutron are also fuel-self-sufficient; that is, their fissile fuel content remains constant with burnup. This feature allows the development of a nuclear energy system that is based on the most highly developed fission technology …
Date:
July 1, 1977
Creator:
Greenspan, E.
Object Type:
Report
System:
The UNT Digital Library
Input and decayed values of radioactive liquid wastes discharged to the ground in the 200 Areas through 1975
Low and intermediate level liquid wastes from chemical separations processing of spent reactor fuel elements have been discharged to the ground in the 200-Areas since 1944. Large volumes of process cooling water, normally free of radioactive contaminants, are discharged to surface ditches or natural surface depressions (ponds). Lesser volumes of liquid waste such as steam condensates, process condensates, scavenged process waste supernatants, and plutonium processing wastes have been, or are being discharged to subsurface disposal sites (cribs). Only input volumes and radioactivity discharged to each disposal site have been reported periodically.
Date:
July 8, 1976
Creator:
Anderson, J. D.
Object Type:
Report
System:
The UNT Digital Library
References to Safeguards, Physical Security, and Related Matters in the Nuclear Non-proliferation Act of 1978 (P.L. 95-242)
This report includes tables and excerpts of references to safeguards, physical security, and related matters in the Nuclear Non-proliferation Act of 1978.
Date:
July 7, 1978
Creator:
Kramer, Donna S. & Donnelly, Warren H.
Object Type:
Report
System:
The UNT Digital Library
Desegregation in Education, August 1966-June 15, 1970: Pro and Con Selected References
This report provides a bibliography of resources related to desegregation in education from August 1966 to June 15, 1970 divided by material type.
Date:
July 20, 1970
Creator:
Kesler, Linda S.; Kornblith, Sally J. & Miller, Helen A.
Object Type:
Report
System:
The UNT Digital Library
Military Sysytems directory
This report is a directory of military services
Date:
July 15, 1970
Creator:
Armed Forces Management
Object Type:
Report
System:
The UNT Digital Library
Discussions of the Health Care System in America: A Selected Bibliography
This report provides a bibliography of resources related to the health care system in the United States
Date:
July 22, 1970
Creator:
Cavalier, Kathleen
Object Type:
Report
System:
The UNT Digital Library
Oral Contraceptives: An Analysis of Their Use in the United States
This report discusses the use of oral contraceptives in the United States and concerns about their safety and effectiveness as well as related legislation and Senate hearings regarding these concerns.
Date:
July 9, 1970
Creator:
McKenzie, Susan R.
Object Type:
Report
System:
The UNT Digital Library
Crop residues as a fuel for power generation
Crop residues could serve as an alternative energy source for producing electric power and heat in agricultural regions of the United States. Nearly 2 quads of residues are estimated to be available as a sustainable annual yield. These can substitute for up to one quad of conventional fuels used to generate electricity and up to an additional quad of petroleum and natural gas currently used for producing heat. The most promising routes to residue conversion appear to be regional generators sized in the megawatt range, and the mixing of residues with coal for burning in coal power plants. Costing farmers from $0.70 to $1.25 per million Btu, to harvest and prepare for use as a fuel, residues can be a competitive renewable energy supply.
Date:
July 1, 1979
Creator:
Bhagat, N.; Davitian, H. & Pouder, R.
Object Type:
Report
System:
The UNT Digital Library
Turbulent interchange in triangular array bare rod bundles
Bulk mixing coefficients were measured for single plane water flow in a simulated rod bundle with a pitch to diameter ratio of 1.10. A tracer technique employing Rhodamine B as the tracer and measuring fluorescence was used. Isokinetic sampling was achieved by using a pressure balance method. The results were corrected for both entrance effects and diversion crossflows. The results showed a change in Reynolds number behavior as the laminar sublayer began to ''choke'' the turbulent mixing. This, and a review of other mixing experiments, suggested that secondary flows do not compensate for laminarization and that turbulent mixing decreases as the pitch to diameter ratio decreases for values of P/D less than 1.05 in a manner similar to that predicted by Ramm et al. Concentration profiles were measured through the clearance gap and the values of the gradient were used to calculate the gap averaged circumferential eddy diffusivity for mass. A discussion of the eddy diffusivity concept and its applicability to turbulent mixing is presented.
Date:
July 1, 1977
Creator:
Kelly, J.M. & Todreas, N.
Object Type:
Report
System:
The UNT Digital Library
Evaluation of thermoplastic polyester molding resins. [Valox 420; Celanex 3300; Tenite 6H91; LNP WF-1006]
None
Date:
July 1, 1975
Creator:
Walter, C.L.; Melton, R.J.; Roebuck, C.E. & Smith, R.S.
Object Type:
Report
System:
The UNT Digital Library
Flash hydropyrolysis of coal. Quarterly report No. 2, April 1--June 30, 1977
With the combination of low hydrogen to coal ratio, high coal feed rate and larger total quantity of coal fed, considerable liquid product is being condensed and collected. Experimental runs conducted at 750/sup 0/C and 800/sup 0/C at pressures up to 3000 psi of hydrogen show overall hydrocarbon yields and particularly gaseous hydrocarbon yields to increase with pressure to approximately 60 percent at 3000 psi. At 750/sup 0/C approximately one third (20 percent) of this yield is in the form of liquid products (half BTX and half greater than or equal to C/sub 9/) while at 800/sup 0/C the yield is almost all methane with less than 3 percent of liquids produced. Preliminary results of the effect of residence time on product yield and distribution shows that at 3000 psi of hydrogen and 800/sup 0/C, gaseous product yield increase and liquid yields decrease as the residence time is increased from 2.3 to 9.2 seconds. Under almost identical conditions at 750/sup 0/C, all product yields increased with approximately the same increase in residence time. Economic studies of the Flash Hydropyrolysis Process (FHP) are continuing. A detailed analysis of a 25,000 ton/day coal conversion plant utilizing FHP shows the discounted cash flow …
Date:
July 1, 1977
Creator:
Fallon, P
Object Type:
Report
System:
The UNT Digital Library
National hydroelectric power resources study. Preliminary inventory of hydropower resources. Volume 6. Northeast region
In the Northeast region, the physical potential for all sites exceeds 33,000 MW of capacity with an estimated average annual energy of some 153,000 GWH. By comparison, the available data represent about 6% of the total capacity and 11% of the hydroelectric energy potential estimated for the entire US. Of the total capacity estimated for the region, 6100 MW has been installed. The remainder (27,200 MW, excluding the undeveloped capacity in the New England States) is the maximum which could be developed by upgrading and expanding existing projects (18,700 MW), and by installing new hydroelectric power capacity at all potentially feasible, undeveloped sites (8500 MW). Small-scale facilities account for about 15% of the region's total installed capacity, but another 1800 MW could be added to these and other small water-resource projects. In addition, 500 MW could be installed at potentially feasible, undeveloped small-scale sites. The small-scale resource varies considerably, with the states of New York, Maine, and New Hampshire having the largest potential for incremental development at existing projects in the Northeast region. West Virginia, Maryland, Delaware, New Jersey, Pennsylvania, New York, Connecticut, Massachusetts, Rhode Island, New Hampshire, Vermont, and Maine comprise the Northeast region.
Date:
July 1, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Automation of the National Water Quality Laboratories, U. S. Geological Survey. I. Description of laboratory functions and definition of the automation project
In January 1976, the Water Resources Division of the U.S. Geological Survey asked Lawrence Livermore Laboratory to conduct a feasibility study for automation of the National Water Quality (NWQ) Laboratory in Denver, Colorado (formerly Denver Central Laboratory). Results of the study were published in the Feasibility Study for Automation of the Central Laboratories, Lawrence Livermore Laboratory, Rept. UCRL-52001 (1976). Because the present system for processing water samples was found inadequate to meet the demands of a steadily increasing workload, new automation was recommended. In this document we present details necessary for future implementation of the new system, as well as descriptions of current laboratory automatic data processing and analytical facilities to better define the scope of the project and illustrate what the new system will accomplish. All pertinent inputs, outputs, and other operations that define the project are shown in functional designs.
Date:
July 1, 1977
Creator:
Morris, W.F. & Ames, H.S.
Object Type:
Report
System:
The UNT Digital Library