Heteroatom speciation in coal liquefaction via FTIR coupled with liquid chromatography. Quarterly progress report, October 1-December 31, 1983 (open access)

Heteroatom speciation in coal liquefaction via FTIR coupled with liquid chromatography. Quarterly progress report, October 1-December 31, 1983

The objectives of the research are (1) evaluate the potential of FT-IR for qualitative functional group detection in chromatographic fractions of highly polar materials, (2) develop separation techniques with the aid of FT-IR detection for concentration of oxygen, nitrogen and sulfur functionalities in synfuels, (3) describe and quantify the various heteroatom functionalities in selected solvent refined coal fractions, (4) place speciation techniques on-line with chromatographic separations, (5) compare quantitative speciation information obtained from LC-FTIR with established fluorine tagging techniques regarding model compounds and synfuels. 23 figures, 5 tables.
Date: May 1, 1984
Creator: Taylor, L.T.
Object Type: Report
System: The UNT Digital Library
SUPRI Heavy Oil Research Program. Seventh annual report, October 1, 1982-September 30, 1983 (open access)

SUPRI Heavy Oil Research Program. Seventh annual report, October 1, 1982-September 30, 1983

This research program has five main objectives: (1) flow properties - to assess the effects of temperature and pressure on absolute and relative permeabilities, on capillary pressure and on any relevant property of petroleum reservoirs; (2) in-situ combustion - tube runs for simulation of in-situ combustion experiments are performed under different pressure and oxygen concentration levels, and kinetics of in-situ combustion reactions are also studied; (3) steam injection with additives - to optimize the steam injection techniques when the control in steam injection is studied; (4) reservoir definition - to improve existing interpretation techniques for well tests, tracer tests and logging; and (5) field support services - to discuss practical problems with representatives of the oil industry. Progress reports are presented for the 5 tasks.
Date: May 1, 1984
Creator: Brigham, W. E.
Object Type: Report
System: The UNT Digital Library
Pulse*Star Inertial Confinement Fusion Reactor: heat transfer loop and balance of plant considerations (open access)

Pulse*Star Inertial Confinement Fusion Reactor: heat transfer loop and balance of plant considerations

A conceptual heat transfer loop and balance of plant design for the Pulse*Star Inertial Confinement Fusion Reactor has been investigated and results are presented. The Pulse*Star reaction vessel, a perforated steel bell jar approximately 11 m in diameter, is immersed in Li/sub 17/Pb/sub 83/ coolant which flows through the perforations and forms a 1.5 m thick plenum of droplets around an 8 m diameter inner chamber. The reactor and associated pumps, piping, and steam generators are contained within a 17 m diameter pool of Li/sub 17/Pb/sub 83/ coolant to minimize structural requirements and occupied space, resulting in reduced cost. Four parallel heat transfer loops with flow rates of 5.5 m/sup 3//s each are necessary to transfer 3300 MWt of power. The steam generator design was optimized by finding the most cost-effective combination of heat exchanger area and pumping power. Power balance calculations based on an improved electrical conversion efficiency revealed a net electrical output of 1260 MWe to the bus bar and a resulting net efficiency of 39%. Suggested balance-of-plant layouts are also presented.
Date: May 9, 1984
Creator: McDowell, M. W. & Murray, K. A.
Object Type: Report
System: The UNT Digital Library
Intelligent optical design program (open access)

Intelligent optical design program

Described is a general approach to the development of computer programs capable of designing image-forming optical systems without human intervention and of improving their performance with repeated attempts. The approach utilizes two ideas: (1) interpretation of technical design as a mapping in the configuration space of technical characteristics and (2) development of an intelligent routine that recognizes global optima. Examples of lens systems designed and used in the development of the general approach are presented, current status of the project is summarized, and plans for the future efforts are indicated.
Date: May 4, 1984
Creator: Bohachevsky, I.O.; Viswanathan, V.K. & Woodfin, G.
Object Type: Article
System: The UNT Digital Library
Proceedings of the Workshop on Electronic and Ionic Collision Cross Sections Needed in the Modeling of Radiation Interactions with Matter, Held at Argonne National Laboratory December 6-8, 1983 (open access)

Proceedings of the Workshop on Electronic and Ionic Collision Cross Sections Needed in the Modeling of Radiation Interactions with Matter, Held at Argonne National Laboratory December 6-8, 1983

The term modeling in the Workship title refers to the mathematical analysis of the consequences of many collision processes for characterizing the physical stage of radiation actions. It requires as input some knowledge of collision cross sections. Traditionally, work on cross sections and work on the modeling are conducted by separate groups of scientists. It was the purpose of the Workshop to bring these two groups together in a forum that would promote effective communication. Cross-section workers described the status of their work and told what data were available or trustworthy. Modeling workers told what kind of data were needed or were most important. Twenty-two items from the workshop were prepared separately for the data base.
Date: May 1984
Creator: Argonne National Laboratory
Object Type: Report
System: The UNT Digital Library
Effectiveness of Solar Shading for an Office Building (open access)

Effectiveness of Solar Shading for an Office Building

Report issued by the National Bureau of Standards over the effectiveness of solar screens on office buildings. The effectiveness of solar shading is discussed. This report includes tables, maps, illustrations, and photographs.
Date: May 1984
Creator: Treado, S.; Barnett, J. & Remmert, W.
Object Type: Report
System: The UNT Digital Library
Energy Demand and Fuel Supply in Developing Countries Brazil,Korea and the Philippines (open access)

Energy Demand and Fuel Supply in Developing Countries Brazil,Korea and the Philippines

None
Date: May 20, 1984
Creator: Sathaye, Jayant A.
Object Type: Report
System: The UNT Digital Library
Failure experience in refractory alloy-clad fuel pins applicable to space nuclear power (open access)

Failure experience in refractory alloy-clad fuel pins applicable to space nuclear power

Numerous in-reactor tests were conducted in the 1960's and early 1970's to develop fuel elements for space nuclear reactors. Most of the tests emphasized refractory metal-clad UN, UC, and UO/sub 2/. Previous reviews were provided by Weaver and Scott and by Gluyas and Watson. More recently, these data were reviewed for supporting information concerning the technical feasibility issues as they relate to the current reactor designs. This paper will focus on the fuel pin failure experience to obtain insight into design options which will lead to a fuel system with the greatest potential for success.
Date: May 1, 1984
Creator: Dutt, D.S. & Cox, C.M.
Object Type: Report
System: The UNT Digital Library
Damage analysis and fundamental studies. Quarterly progress report, January-March 1984 (open access)

Damage analysis and fundamental studies. Quarterly progress report, January-March 1984

Separate abstracts were prepared for each of the included sections. (MOW)
Date: May 1, 1984
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Sampling, characterization, and remote sensing of aerosols formed in the atmospheric hydrolysis of uranium hexafluoride (open access)

Sampling, characterization, and remote sensing of aerosols formed in the atmospheric hydrolysis of uranium hexafluoride

When gaseous uranium hexafluoride (UF/sub 6/) is released into the atmosphere, it rapidly reacts with ambient moisture to form an aerosol of uranyl fluoride (UO/sub 2/F/sub 2/) and hydrogen fluoride (HF). As part of our Safety Analysis program, we have performed several experimental releases of HF/sub 6/ in contained volumes in order to investigate techniques for sampling and characterizing the aerosol materials. The aggregate particle morphology and size distribution have been found to be dependent upon several conditions, including the temperature of the UF/sub 6/ at the time of its release, the relative humidity of the air into which it is released, and the elapsed time after the release. Aerosol composition and settling rate have been investigated using stationary samplers for the separate collection of UO/sub 2/F/sub 2/ and HF and via laser spectroscopic remote sensing (Mie scatter and infrared spectroscopy). 25 refs., 16 figs., 5 tabs.
Date: May 1, 1984
Creator: Bostick, W. D.; McCulla, W. H. & Pickrell, P. W.
Object Type: Report
System: The UNT Digital Library
Surface modification of solids (open access)

Surface modification of solids

The use of ion beam and pulsed laser processing is reviewed for the near-surface modification of a wide range of materials. The techniques of ion implantation doping, ion beam and laser mixing, and pulsed-laser annealing are stressed with particular emphasis on the nonequilibrium aspects of these processing techniques and on new materials properties which can result. Examples are presented illustrating the utility of these techniques for fundamental materials research as well as practical surface modifications.
Date: May 1, 1984
Creator: Appleton, B. R.
Object Type: Article
System: The UNT Digital Library
3-D treatment of convective flow in the earth's mantle (open access)

3-D treatment of convective flow in the earth's mantle

A three-dimensional finite-element method is used to investigate thermal convection in the earth's mantle. The equations of motion are solved implicitly by means of a fast multigrid technique. The computational mesh for the spherical problem is derived from the regular icosahedron. The calculation described use a mesh with 43,554 nodes and 81,920 elements and were run on a Cray X. The earth's mantle is modeled as a thick spherical shell with isothermal, free-slip boundaries. The infinite Prandtl number problem is formulated in terms of pressure, density, absolute temperature, and velocity and assumes an isotropic Newtonian rheology. Solutions are obtained for Rayleigh numbers up to approximately 10/sup 6/ for a variety of modes of heating. Cases initialized with a temperature distribution with warmer temperatures beneath speading ridges and cooler temperatures beneath present subduction zones yield whole-mantle convection solutions with surface velocities that correlate well with currently observed plate velocities. 8 references, 6 figures.
Date: May 1, 1984
Creator: Baumgardner, J.R.
Object Type: Article
System: The UNT Digital Library
Crossed undulator system for a variable polarization synchrotron radiation source (open access)

Crossed undulator system for a variable polarization synchrotron radiation source

A crossed undulator system can produce synchrotron radiation whose polarization is arbitrary and adjustable. The polarization can be linear and modulated between two mutually perpendicular directions, or it can be circular and can be modulated between right and left circular polarizations. The system works on low emittance electron storage rings and can cover a wide spectral range. Topics discussed include the basic principle of the system, the design equations and the limitations in performance.
Date: May 1, 1984
Creator: Kim, K. J.
Object Type: Article
System: The UNT Digital Library
Potential geothermal energy use at the Naval Air Rework Facilities, Norfolk, Virginia and Jacksonville, Florida, and at the naval shipyard, Charleston, South Carolina (open access)

Potential geothermal energy use at the Naval Air Rework Facilities, Norfolk, Virginia and Jacksonville, Florida, and at the naval shipyard, Charleston, South Carolina

The feasibility of geothermal energy use at naval installations in Norfolk, VA, Jacksonville, FL, and Charleston, SC was assessed. Geophysical and geological studies of the above areas were performed. Engineering and economic factors, affecting potential energy use, were evaluated. The Norfolk and Jacksonville facilities are identified as candidates for geothermal systems. System costs are predicted. Economic benefits of the proposed geothermal systems are forecast, using the net present value method of predicting future income.
Date: May 1, 1984
Creator: Costain, J. K.; Glover, L., III & Newman, R. W.
Object Type: Report
System: The UNT Digital Library
Approach to IAEA material-balance verification with intermittent inspection at the Portsmouth Gas Centrifuge Enrichment Plant (open access)

Approach to IAEA material-balance verification with intermittent inspection at the Portsmouth Gas Centrifuge Enrichment Plant

This paper describes a potential approach by which the International Atomic Energy Agency (IAEA) might verify the nuclear-material balance at the Portsmouth Gas Centrifuge Enrichment Plant (GCEP) for the circumstance in which the IAEA inspections occur on an intermittent basis. The verification approach is a variation of the standard IAEA attributes/variables measurement-verification method. This alternative approach is useful and applicable at the Portsmouth GCEP, which will ship all its product and tails UF/sub 6/ to United States facilities not eligible for IAEA safeguards. The paper reviews some of the relevant results of the Hexapartite Safeguards Project (HSP), describes the standard IAEA material-balance-verification approach for bulk-handling facilities, and provides the procedures to be followed in handling and processing UF/sub 6/ cylinders at the Portsmouth GCEP. The paper then discusses the assumptions made in the approach, and derives a formula for the probability with which the IAEA could detect the diversion of a significant quantity of uranium (75 kg of U-235 in depleted, normal, and low-enriched uranium) if this method were applied. The paper also provides numerical examples of IAEA detection probability should the operator divert uranium from the feed, product, or tails streams for the Portsmouth GCEP with a capacity of …
Date: May 18, 1984
Creator: Gordon, D. M. & Sanborn, J. B.
Object Type: Report
System: The UNT Digital Library
BEPS redesign of 168 commercial buildings: summary report (open access)

BEPS redesign of 168 commercial buildings: summary report

The objective of this report is to present, in usable form, summary data from the Building Energy Performance Standards (BEPS) Phase II commercial buildings energy research conducted in 1978-1979. Summary data presented were obtained from two major research efforts: the BEPS Phase II Redesign experiment; and the related research on ASHRAE Standard 90-75R. The bulk of this report consists of data tabulations of key energy parameters for the 168 sample buildings, which were tabulated from computer-stored files of the 1978-1979 data. Two kinds of tabulations are included: numerical tabulations that extracted information from the computer-stored data base for the 168 sample buildings; and graphic presentations of the computer-generated data, plus data extracted from other sources. The intent is to provide a single data compendium of key energy-related factors from the 1978 redesign experiment and the associated 1978-1979 ASHRAE Standard 90-75R research. This report also supplements the information for which there was not space in the magazine articles. Thus, for some building types, additional analysis, comments, and data tabulations are included that could not be included in the articles because space was limited. These additional analysis items are not consistent across building types because both the energy conservation opportunities and the …
Date: May 1, 1984
Creator: Stoops, J.L.; Deringer, J.J.; Moreno, S. & Misuriello, H.P.
Object Type: Report
System: The UNT Digital Library
Conductivity of rf-heated plasma (open access)

Conductivity of rf-heated plasma

The electron velocity distribution of rf-heated plasma may be so far from Maxwellian that Spitzer conductivity no longer holds. A new conductivity for such plasmas is derived and the result can be put in a remarkably general form. The new expression should be of great practical value in examining schemes for current ramp-up in tokamaks by means of lower-hybrid or other waves.
Date: May 1, 1984
Creator: Fisch, N. J.
Object Type: Report
System: The UNT Digital Library
Coating of the SLAC klystron windows (open access)

Coating of the SLAC klystron windows

Secondary emission is not likely to be suppressed in thin films. Accumulated charges leak away with two time constants. The fast time constant should be short compared to the pulse duration, and the slow time constant should be short compared to the time between pulses. The Joule heating may be prohibitive in reaching adequate charge removal. The joule heating may be reduced by films which conduct little in the direction of the electric field and much better in the perpendicular direction.
Date: May 23, 1984
Creator: Krienen, F.
Object Type: Report
System: The UNT Digital Library
Focusing twist reflector for electron-cyclotron resonance heating in the Tandem Mirror Experiment-Upgrade (open access)

Focusing twist reflector for electron-cyclotron resonance heating in the Tandem Mirror Experiment-Upgrade

A twist reflector plate is described that linearly polarizes and focuses the TE/sub O/sub 1// circular waveguide mode for heating hot electrons in the thermal barrier of the Tandem Mirror Experiment-Upgrade (TMX-U). The plate polarizing efficiency is 95%, and it has operated satisfactorily at 150 kW power level.
Date: May 1, 1984
Creator: Stallard, B.W.; Coffield, F.E.; Felker, B.; Taska, J.; Christensen, T.E.; Gallagher, N.C. Jr. et al.
Object Type: Article
System: The UNT Digital Library
Charge-changing collisions (open access)

Charge-changing collisions

Recent results for charge-changing collisions of interest for cyclotrons and other particle accelerators are presented. Scaling rules, where available, are emphasized. 45 references, 11 figures.
Date: May 1, 1984
Creator: Schlachter, A.S.
Object Type: Article
System: The UNT Digital Library
Chemistry Division annual progress report for period ending January 31, 1984 (open access)

Chemistry Division annual progress report for period ending January 31, 1984

Progress is reported in the following fields: coal chemistry, aqueous chemistry at high temperatures and pressures, geochemistry, high-temperature chemistry and thermodynamics of structural materials, chemistry of transuranium elements and compounds, separations chemistry, elecrochemistry, catalysis, chemical physics, theoretical chemistry, nuclear waste chemistry, chemistry of hazardous chemicals, and thermal energy storage.
Date: May 1, 1984
Creator: unknown
Object Type: Report
System: The UNT Digital Library
New particle searches at PEP (open access)

New particle searches at PEP

New particle searches by TPC, MARK II, and MAC are reviewed. No evidence of supersymmetric particle production has been seen in two possible reactions. Improved lower bounds on the e mass have been set. The TPC search for charge (4/3)e particles is reported. 14 references.
Date: May 1, 1984
Creator: Band, H.R.
Object Type: Report
System: The UNT Digital Library
Survey of vibration amplitudes throughout the linac (open access)

Survey of vibration amplitudes throughout the linac

The magnitude of vibrations of the Linac structure due to on site disturbances, such as cooling towers, pumps, generators, Highway 280 overpass traffic, is of interest. CN-263, for example, discusses tolerances of random (i.e., uncorrelated) quad jitter and suggests that amplitudes should not exceed 0.7 microns rms. This note describes the results of a series of measurements carried out in the summer of 1983. In general, the tolerance is not exceeded, but there appears not to be a good safety factor at low frequencies.
Date: May 2, 1984
Creator: Werner, K.L.
Object Type: Report
System: The UNT Digital Library
Application of toroidal multipoles to facilitate tokamak reactor studies (open access)

Application of toroidal multipoles to facilitate tokamak reactor studies

A method of calculating the vacuum magnetic flux for plasma equilibrium over a range of aspect ratio A and major radius R is presented. Toroidal multipoles are used to fit the vacuum flux for a set of reference equilibria and the fitted moments are then used to parametrize the flux over the design space in A and R. An example is given in which the equilibrium flux for a D-shaped tokamak plasma is predicted and compared with the actual equilibrium code vacuum flux.
Date: May 1, 1984
Creator: Ehrhardt, A. B.
Object Type: Report
System: The UNT Digital Library