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Electrofuels Program
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Field Demonstration of a Membrane Process to Separate Nitrogen From Natural Gas Progress Report
6
Winter Fuels Report
4
ARM Facilities Newsletter
3
BEEST Program
3
Fiscal Year 2000
3
Fiscal Year 2005
3
Fiscal Year 2007
3
Petroleum Marketing Monthly
3
Establishment of an Industry-Driven Consortium Focused on Improving the Production Performance of Domestic Stripper Wells Quarterly Report
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Geothermal direct contact heat exchange. Final report
A glass direct contact heat exchange column was operated in the laboratory. The column was operated at atmospheric pressure using hot water and normal hexane. Column internals testing included an empty column, sieve trays, disk-and-doughnut trays, and two types of packing. Operation was very smooth in all cases and the minimum temperature approaches varied from less than 1/sup 0/C for packing to 13/sup 0/C for the empty column. High heat transfer rates were obtained in all cases, however, columns should be sized on the basis of liquid and vapor traffic. The solubilities of hydrocarbons were determined for normal hexane, pentane and butane in water and sodium chloride and calcium chloride brines at various temperatures. The values seem to be internally consistent and salt content was found to depress hydrocarbon solubility. Laboratory stripping tests showed that gas stripping can be used to remove hydrocarbon from reject hot water from the direct contact heat exchange column. Although the gas volumes required are small, stripping gas requirements cannot be accurately predicted without testing. A computer program was used to study the effect of operating variables on the thermodynamic cycle efficiencies. Optimum efficiencies for the moderate brine conditions studied were obtained with isopentane as …
Date:
June 10, 1977
Creator:
Sims, A. V.
Object Type:
Report
System:
The UNT Digital Library
Estimation of aerosol plutonium transport by the dust-flux method: a perspective on application of detailed data
Two methods of dust-flux measurements are discussed which have been utilized to estimate aerosol plutonium deposition and resuspension. In previous studies the methods were found to be sufficiently detailed to permit parameterization of dust-flux to the erodibility of the soil, and a seventh-power dependency of dust-flux (or plutonium flux) to wind speed was observed in worst case conditions. The eddy-correlation method is technically more difficult, requires high-speed data acquisition, and requires an instrument response time better than one second, but the eddy-correlation method has been shown feasible with new fast-response sensors, and it is more useful in limited areas because it can be used as a probe. The flux-gradient method is limited by critical assumptions and is more bulky, but the method is more commonly used and accepted. The best approach is to use both methods simultaneously. It is suggested that several questions should be investigated by the methods, such as saltation stimulation of dust-flux, simultaneous suspension and deposition, foliar deposition and trapping, erodibility of crusted surfaces, and horizontally heterogeneous erodibility.
Date:
December 10, 1976
Creator:
Shinn, Joseph H.
Object Type:
Article
System:
The UNT Digital Library
(Studies of ocean predictability at decade to century time scales using a global ocean general circulation model in a parallel competing environment). [Large Scale Geostrophic Model]
The first phase of the proposed work is largely completed on schedule. Scientists at the San Diego Supercomputer Center (SDSC) succeeded in putting a version of the Hamburg isopycnal coordinate ocean model (OPYC) onto the INTEL parallel computer. Due to the slow run speeds of the OPYC on the parallel machine, another ocean is being model used during the first part of phase 2. The model chosen is the Large Scale Geostrophic (LSG) model form the Max Planck Institute.
Date:
March 10, 1992
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Review of actinide-sediment reactions with an annotated bibliography
The annotated bibliography is divided into sections on chemistry and geochemistry, migration and accumulation, cultural distributions, natural distributions, and bibliographies and annual reviews. (LK)
Date:
February 10, 1976
Creator:
Ames, L. L.; Rai, D. & Serne, R. J.
Object Type:
Report
System:
The UNT Digital Library
Effects of the trip phenomenon on the toughness of heat treatable alloy steels. [AISI 4330]
It is shown that substantial amounts of untransformed austenite may be obtained in low alloy steels by a combination of alloy modification (addition of silicon) and heat treatment. In silicon modified AISI 4330 steel, the amount of untransformed austenite is varied by utilizing isothermal treatments both above and below the M/sub s/. The stability of the untransformed austenite is found to be dependent on the amount of silicon and also on the tempering temperature. A magnetic saturation technique was utilized to monitor the transformation of the austenite under uniaxial tensile loading. An improvement in the plane strain fracture toughness (K/sub Ic/) was observed when the retained austenite transformed with respect to strain. This improvement was optimized with particular combinations of stability and volume fractions of retained austenite. The addition of silicon resulted in an increase of both the strength and the fracture toughness (K/sub Ic/) of the quenched and tempered AISI 4330 steel. Yield strengths in the range of 200-220 ksi and K/sub Ic/ values as high as 107 ksi..sqrt..in were obtained. The microstructure was characterized using both optical and electron microscopy and is correlated with the mechanical properties.
Date:
November 10, 1976
Creator:
Kohn, G.
Object Type:
Report
System:
The UNT Digital Library
Technical evaluation of the adequacy of station electric distribution system voltages for the Rancho Seco Nuclear Generating Station, Unit No. 1: selected issues program (Docket No. 50-312)
This report documents the technical evaluation of the adequacy of the station electric distribution system voltages for the Rancho Seco Nuclear Generation Station, Unit No. 1. The evaluation is to determine if the onsite distribution system, in conjunction with the offsite power sources, has sufficient capacity to automatically start and operate all Class 1E loads within the equipment voltage ratings under certain conditions established by the Nuclear Regulatory Commission. The licensee demonstrates with the analysis that with certain modifications the guidelines and requirements of the NRC will be met.
Date:
November 10, 1981
Creator:
White, R. L.
Object Type:
Report
System:
The UNT Digital Library
Computer automation on an electron-beam welder with automatic, stored seam tracking
A Hamilton Standard 7.5-kW electron-beam welder has been extensively rebuilt, upgraded, and computer automated to provide accurate, repeatable, multipass, wirefed welds with stored seam tracking. Tests have shown that the seam-tracking system can keep the beam on a true line within approximately +-0.05 millimeter, even in the presence of a strongly deflecting magnet.
Date:
May 10, 1978
Creator:
Burkhardt, J. H. Jr.; Bowers, G. L.; Davenport, C. M.; Turner, P. C. & Greene, L. M.
Object Type:
Report
System:
The UNT Digital Library
Preliminary users manual for BBC. [In LLL FORTRAN (LRLTRAN) for CDC-7600 computer]
BBC is a two-dimensional, multifluid Eulerian hydro code based on the code KRAKEN and some later development. Either cylindrical or slab problems can be run. The grid is bounded by a rectangular band of empty boundary zones. The interfaces between the regular and boundary zones can be selected to be either rigid or vacuum interfaces. The setup for BBC problems is described in the KEG manual. The present report includes several options not available in the original version of BBC. (RWR)
Date:
May 10, 1976
Creator:
Sutcliffe, W. G.; Warshaw, S. I. & Litterst, R. F.
Object Type:
Report
System:
The UNT Digital Library
National waste terminal storage program
An overview is presented of the national geologic disposal program for the safe and efficient isolation of nuclear wastes resulting from the commercial nuclear reactor fuel cycle. Investigations being pursued by the Office of Waste Isolation including schedules, tentative budgets, and proposed participants are outlined. (LK)
Date:
January 10, 1977
Creator:
Boch, A. L.
Object Type:
Report
System:
The UNT Digital Library
Critical evaluation of the nonradiological environmental technical specifications. Volume 2. Surry Power Plants, Units 1 and 2
A comprehensive study of the data collected as part of the environmental Technical Specifications program for Units 1 and 2 of the Surry Nuclear Power Plant was carried out for the Office of Regulatory Research of the U.S. Nuclear Regulatory Commission. The program included an analysis of the hydrothermal and ecological monitoring data collected from 1973 through 1975. The hydrothermal analysis includes a discussion of models used in plume predictions prior to plant operation and an evaluation of the present hydrothermal monitoring program. The two primary methods used for temperature monitoring employ a fixed thermographs network and boat measurements. Review of data indicates that both the application and formulation of the hydrothermal monitoring program are inadequate to fully characterize the operation of the plant and the behavior of the thermal plume. Furthermore, there are no existing data that can be used to adequately verify or disprove the validity of the various Surry plume predictions. The ecological analysis includes validation of impacts predicted in the Final Environmental Statement using the operational monitoring data. Phytoplankton cell concentrations, chlorophyll a, and carbon-14 measurements were used to monitor changes in the primary producers. Densities of consumers (i.e., zooplankton, benthos, and fish) were sed to …
Date:
August 10, 1976
Creator:
Adams, S. M.; Cunningham, P. A.; Gray, D. D. & Kumar, K. D.
Object Type:
Report
System:
The UNT Digital Library
Tritium Waste Control Project progress report: April--June 1976. [LIS; electrolysis; monitor; shipping container; catalytic exchange]
Tritiated Liquid Waste Decontamination (Molecular Excitation): A preliminary economic study of water detritiation by laser isotope separation indicates possible advantages over the catalytic exchange process. The electric power requirements are a factor of 5 lower, resulting in a 50-percent reduction in operating costs. Capital costs for the two methods appear comparable. Additional attempts were made to determine the ir spectrum of HTO around the ..nu../sub 1/ band. However, carbon dioxide impurity obscured the HTO absorption around 2265 cm/sup -1/ making it impossible to obtain a high quality spectrum for use in the LIS experiments. Electrolysis of High Level Tritiated Water: In an experiment using a regenerative cell on water containing approximately 0.3 g tritium, about 21 ml of water was electrolyzed but the solid polymer electrolyte ruptured and cell components were damaged beyond repair. Tritium Monitor Development and Calibration: The calibration system design was modified to allow procurement and fabrication of the major components during FY-1976. Shipping Container Development for Tritiated Liquid Waste: The bourdon tube pressure gage was replaced with a pressure transducer for double containment. A calorimeter was completed for tritium assay of contents. Catalytic Exchange Detritiation Studies: The Englehard hydrophobic, catalyst for HT/H/sub 2/O exchange is being …
Date:
December 10, 1976
Creator:
Bixel, J. C. & Kershner, C. J.
Object Type:
Report
System:
The UNT Digital Library
Review of electrostatic plugging
Using electric fields to diminish end losses from open magnetic plasma confinement systems is equivalent to magnetically shielding the grid wires of an electrostatic plasma confinement device. Electrostatically plugged magnetic cusps confine electrons magnetically in the perpendicular direction and electrostatically in the parallel direction, and ions are purely electrostatically confined in both directions. Theoretical estimates have been made of confinement times, electron density, plasma potential, and plasma temperatures. Experimentally, plasmas with n = 5 x 10/sup 12/ cm/sup -3/, T/sub i/ = 1 keV, tau = 5 msec, have been confined by cusp fields of about 10 kG with applied voltages approximately 10 kV. Fusion reactors with (fusion power)/(injection power) identical with Q approximately 5 appear feasible using B approximately 80 kG, applied voltage approximately 300 kV, if extrapolations from present experiments hold. Electrostatically plugged cusps are similar in some ways to Tandem Mirrors, to Tormac, and to SURMAC plasma confinement systems.
Date:
August 10, 1977
Creator:
Dolan, T. J.
Object Type:
Report
System:
The UNT Digital Library
EMP protection technology interchange
Investigation and assessment of the potential degrading and destructive effects associated with the nuclear electromagnetic (EMP) phenomena has created a large technological base. This base is indeed quite broad owing to the unique and system-pervasive character of the EMP. One of the aims of an emerging discipline, such as that associated with EMP, is to provide for adequate transfer and integration of the developing technology into the overall engineering community. The needs of the community and how EMP hardening and protection information can be transferred or exchanged are reviewed. Many of the current and generally available sources of information are listed, examples of interchange methods are provided, and problems of developing specifications, standards, and suitable guidelines for design and incorporation of protection are also discussed.
Date:
May 10, 1977
Creator:
Martin, L. C.
Object Type:
Article
System:
The UNT Digital Library
Determination of the pr of laser fusion targets using the. cap alpha. -particle TOF technique
A computer code was written to describe the alpha particle energy loss. The problem of a symmetric compression of the DT gas by an exploding microsphere is analyzed. The code calculates the energy spectrum of a Gaussian distribution of alpha particles after passing through the compressed gas and the exploded glass. The calculations are being used to determine design parameters for diagnostic instruments for measuring charged particle energy distributions from laser fusion targets. (MOW)
Date:
October 10, 1975
Creator:
Slivinsky, V. W.; Lent, E.; Shay, H. D. & Manes, K. R.
Object Type:
Article
System:
The UNT Digital Library
Numeric processor and text manipulator for the ''MASTER CONTROL'' data-base-management system
The numeric and text processor of the MASTER CONTROL (MCP) data-base-management system permits the user to define fields and arrays that are functionally dependent on the data retained in a data base. This allows the storage of only the essential and unique information and data, and the calculation of derivable quantities as required. The derived quantity can be expressed as an arithmetic expression, that is, a functional relationship. Functions can be multiply subscripted and can be embedded within other functions at up to 58 levels. They can be stored either semi-permanently in a repertoire of functional relations, or they can be defined interactively from a terminal and used immediately for searching on the derived value. The processor also permits the conversion of literal strings into numbers, and vice versa. In addition, the user can define dictionaries that allow the expansion of keyed sentinels associated with records in the data base into fully descriptive expressions. This option can be used for cost-effective searching and data compaction. The functional definitions are reduced to Polish notation and stored in a disk file from which they are either retrieved on demand and evaluated according to the data of records specified or used in any …
Date:
February 10, 1976
Creator:
Kuhn, R. W.
Object Type:
Report
System:
The UNT Digital Library
LMFBR safety program. Annual technical progress report, government fiscal year 1976 and 1976T. [Sodium, fuel, and fission, product aerosol behavior]
Progress is summarized in LMFBR safety studies related to the characterization of sodium fires and fission products. Included are sections on SOMIX Code development, sodium splash dispersal, aerosol leakage, aerosol model improvement, characterization of aerosol source term, large scale molten fuel tests, fuel and fission product release from burning sodium, and iodine attenuation. (DG)
Date:
January 10, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Mirror reactor studies. [Design studies of fusion mirror, hybrid mirror, and two small mirror reactors]
Design studies of a fusion mirror reactor, a fusion-fission mirror reactor, and two small mirror reactors are summarized. The fusion reactor uses 150-keV neutral-beam injectors based on the acceleration of negative ions. The injectors provide over 1 GW of continuous power at an efficiency greater than 80 percent. The fusion reactor has three-stage, modularized, Venetian blind, plasma direct converter with a predicted efficiency of 59 percent and a new concept for removal of the lune-shaped blanket: a crane is brought between the two halves of the Yin-Yang magnet, which are separated by a float. The design has desirable features such as steady-state operation, minimal impurity problems, and low first-wall thermal stress. The major disadvantage is low Q resulting in high recirculating power and hence high cost of electrical power. However, the direct capital cost per unit of gross electrical power is reasonable ($1000/kW(e)).
Date:
August 10, 1976
Creator:
Moir, R. W.; Barr, W. L. & Bender, D. J.
Object Type:
Report
System:
The UNT Digital Library
Research and development needs for transportation
None
Date:
April 10, 1975
Creator:
Anderson, Carl J.
Object Type:
Report
System:
The UNT Digital Library
DT fusion neutron irradiation of BNL--LASL superconductor wires
The following samples were irradiated with the LLL rotating target neutron source: 19-core Nb/sub 3/Sn multifilament wires, Nb/sub 3/Sn single core, V/sub 3/Ga single core, NbTi Supercon 402, and NbTi cupronickel jacketed. No test results are given. (MOW)
Date:
August 10, 1976
Creator:
MacLean, S. C.
Object Type:
Report
System:
The UNT Digital Library
Effects of fill pressure and pulse simultaneity on the laser driven implosion of dt filled glass microshells
This paper discusses a series of experiments performed with the LLL two-beam laser system, JANUS. The JANUS laser is capable of focusing approximately 500 Gigawatts of 1.06 ..mu.. power (40 J in 80 psec) on laser fusion type targets. In these experiments, the targets were deuterium tritium (DT) filled glass microshells with aspect ratios of 100 to 200. Targets of this type operate in what is commonly called the exploding pusher mode. The result is that the glass shell surrounding the DT gas (the thermonuclear fuel) effectively explodes, and consequently from geometry, also implodes and compresses and heats the DT gas to TN conditions. The advantages and disadvantages of the exploding pushers type target, as compared with the high density isentropic implosion target of the future, is illustrated.
Date:
October 10, 1975
Creator:
Storm, E.; Holzrichter, J. F.; Ahlstrom, H. G.; Speck, D. R.; Swain, J. E.; Coleman, L. W. et al.
Object Type:
Article
System:
The UNT Digital Library
Feasibility of a MHD generator as a transmitter for electromagnetic sounding of the earth. [Mathematical models]
Development of a high-intensity source for use in time-domain electromagnetic (TDEM) soundings would permit investigation of geothermal systems to much greater depth than is now possible with controlled-source methods. The development of such a source is critically dependent upon a powerful, mobile generator. Magnetohydrodynamic pulse generators satisfy the weight and power requirements for such a generator. However, existing MHD generators which are used in geophysical applications are solid fueled, and therefore, very expensive to operate. Moreover, the pulse length from such a generator is limited to about 10 seconds, which may be too short to permit the maximum advantage to be gained from the available power. The shortcomings of the MHD generator will be remedied in a liquid-fueled generator now under development for the U.S. Air Force. A field program designed to compare available conventional and MHD generators would provide the necessary information for final generator selection, as well as an abundance of information on the nature of geothermal systems at depth. Operation and cost studies on MHD generators are given, and model calculations for TDEM soundings of geothermal hot-dry-rock systems are presented.
Date:
August 10, 1976
Creator:
Fleming, D. B.
Object Type:
Report
System:
The UNT Digital Library
Research on the physical properties of geothermal reservoir rocks. Progress report 2, September 1, 1976--January 10, 1977
Textural properties, including porosity and density, of rock samples collected from Cenozoic volcanic fields in the western U.S. were studied. Resistivity and acoustic wave speed measurements were also made. (JGB)
Date:
January 10, 1977
Creator:
Keller, G. V.
Object Type:
Report
System:
The UNT Digital Library
High Energy Physics
The Counter Group continues to work on data analysis for Fermilab Experiment E653. Altogether, they expect several thousand reconstructed charm events and approximately 25 B pair events of which 12 have been observed thus far. Preparation continue for Fermilab Experiment E781, a high statistics study of charm baryon production. In the Theory Group, Cutkosky and collaborators study hadron phenomenology and non-perturbative QCD calculations. Levine has a long standing program in computational QED to obtain improved theoretical values for g-2 of the electron. Wolfenstein, Li, and their collaborators have worked on areas of weak interaction phenomenology that may yield insights beyond the standard model, e.g. CP violation and non-zero neutrino masses. Holman has been concerned with phase transitions in gauge theories relevant to cosmological problems. During 1991 most of the group effort was concentrated on the L3 experiment at CERN. Highlights of the results from the analysis of the Z[degrees] resonance include (a) a measurement of the strong coupling constant [alpha][sub s] for b quarks (b) a precision measurement of the average time of B hadrons and (c) a direct determination of the number of light neutrino faculties from the reaction e[sup +]e[sup [minus]] [yields] [nu][bar [nu]][gamma]. We also began a …
Date:
April 10, 1992
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Environmental tests of the Meteorological Data Acquisition system's remote station
We subjected the Meteorological Data Acquisition (MEDA) remote station hardware to temperature, vibration, and road tests. The MEDA equipment was designed at the Lawrence Livermore Laboratory (LLL) for the Air Resources Laboratory (ARL). ARL supplied all MEDA sensors. The prototype system passed these tests.
Date:
May 10, 1976
Creator:
Aaron, Jr., C. C.
Object Type:
Report
System:
The UNT Digital Library