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Liquid-metal MHD flow in a duct whose cross section changes from a rectangle to a trapezoid, with applications in fusion blanket designs

Description: This paper treats the liquid-metal MHD flow in a semi-infinite rectangular duct and a semi-infinite trapezoidal duct, which are connected by a finite-length transition duct. There is a strong, transverse, uniform magnetic field. The walls parallel to the magnetic field (sides) remain parallel, while the walls intersecting the magnetic field are twisted in the transition duct to provide the change in cross sectional shape. The left side has a constant height, while the height of the right side i… more
Date: April 1, 1986
Creator: Walker, J.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Liquid-metal flow through a thin-walled elbow in a plane perpendicular to a uniform magnetic field

Description: This paper presents analytical solutions for the liquid-metal flow through two straight pipes connected by a smooth elbow with the same inside radius. The pipes and the elbow lie in a plane which is perpendicular to a uniform, applied magnetic field. The strength of the magnetic field is assumed to be sufficiently strong that inertial and viscous effects are negligible. This assumption is appropriate for the liquid-lithium flow in the blanket of a magnetic confinement fusion reactor, such as a … more
Date: April 1, 1986
Creator: Walker, J.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Liquid-metal flow in a rectangular duct with a non-uniform magnetic field

Description: This paper treats liquid-metal flow in rectangular ducts with thin conducting walls. A transverse magnetic field changes from a uniform strength upstream to a weaker uniform strength downstream. The Hartmann number and the interaction parameter are assumed to be large, while the magnetic Reynolds number is assumed to be small. If the magnetic field changes gradually over a long duct length, the velocity and pressure are nearly uniform in each cross section and the flow differs slightly from loc… more
Date: April 1, 1986
Creator: Walker, J.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Two-phase alkali-metal experiments in reduced gravity

Description: Future space missions envision the use of large nuclear reactors utilizing either a single or a two-phase alkali-metal working fluid. The design and analysis of such reactors require state-of-the-art computer codes that can properly treat alkali-metal flow and heat transfer in a reduced-gravity environment. A literature search of relevant experiments in reduced gravity is reported on here, and reveals a paucity of data for such correlations. The few ongoing experiments in reduced gravity are no… more
Date: June 1, 1986
Creator: Antoniak, Z.I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Liquid-metal flow in a thin conducting pipe near the end of a region of uniform magnetic field

Description: This paper treats the liquid-metal flow in a straight circular pipe with a thin metal wall. A strong magnetic field is applied by a magnet with parallel poles that end abruptly. In the plane midway between the magnet poles: (1) far upstream, the flow is uniform, fully developed flow in a uniform magnetic field; (2) as the flow enters the non-uniform magnetic field near the end of the magnet, the flow moves away from the central part of the pipe and becomes concentrated as two jets near the poin… more
Date: April 1, 1986
Creator: Walker, J.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High temperature sound speed measurements in expanded liquid tantalum

Description: Cylindrical samples of tantalum are resistively pulse heated to high-temperature states along an isobaric path by capacitive discharge in a high pressure inert gas atmosphere. Using this technique samples may be heated to temperatures up to 10,000/sup 0/K at pressures up to 1.0 GPa. The transient (10/sup -4/ s) heating technique is employed to overcome stability problems. Our measurements are complemented by the additional capability to measure sound speeds in the hot expanded sample. Results o… more
Date: January 1, 1986
Creator: Hixson, R.S.; Winkler, M.A. & Shaner, J.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Neutralization of a fast negative-ion beam

Description: Neutralization of a fast negative-ion beam, primarily H/sup -/, is discussed in terms of competing one- and two-electron detachment processes in a variety of media: gas (vapor), plasma, liquid sheet, solid foil.
Date: January 1, 1986
Creator: Schlachter, A. S.; Mowat, J. R.; Stearns, J. W.; Gohil, P. & Pyle, R. V.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Liquid metal thermoacoustic engine

Description: We are studying a liquid metal thermoacoustic engine both theoretically and experimentally. This type of engine promises to produce large quantities of electrical energy from heat at modest efficiency with no moving parts. A sound wave is usually thought of as consisting of pressure oscillations, but always attendant to the pressure oscillation are temperature oscillations. The combination produces a rich variety of ''thermoacoustic'' effects. These effects are usually so small that they are ne… more
Date: January 1, 1986
Creator: Swift, G.W.; Migliori, A. & Wheatley, J.C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The mobile phase in coals: Its nature and modes of release: Final report: Part 1, Structural inferences from dry catalytic hydrogenation of a subbituminous coal

Description: In a study to provide insight into the two component structural model of coal and the mechanisms of coal liquefaction, an approach was adopted in which a subbituminous coal was reacted with hydrogen in the presence of an impregnated molybdenum sulphide catalyst and in the absence of solvent. Reactions were conducted at temperatures between 300 and 400/sup 0/C and for reaction times up to 180 min. The composition and yields of gaseous products, chloroform-soluble liquids and insoluble residues w… more
Date: December 1, 1986
Creator: Terrer, M. T. & Derbyshire, F. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Physics of dense fluids

Description: We review recent advances in the theory of dense fluids and of the application of these methods to the study of shock compressed liquids. 52 refs., 25 figs.
Date: July 1, 1986
Creator: Ross, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Liquid plutonium reaction with titanium

Description: High purity plutonium penetrated into commercially pure titanium at an average rate of 0.006 inches per minute during six minutes between 970/sup 0/C and 1050/sup 0/C, under partial vacuum. It is believed that, due to the constrained geometry of the titanium cup and the loss of some plutonium due to penetration through an upper wall of the cup, the plutonium-titanium reaction rate was slowed and penetration stopped at 0.038 inches into the titanium. Conservative calculations based on the pluton… more
Date: February 1, 1986
Creator: Soderquist, S.D. & Johnson, K.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pacific Northwest Laboratory annual report for 1985 to the DOE Office of Energy Research. Part 1. Biomedical sciences

Description: This report summarizes progress on OHER biomedical and health-effects research conducted at PNL in FY 1985 to develop information for a comprehensive understanding of the interaction of energy-related radiation and chemicals with man. Our continuing emphasis on decreasing the uncertainty of health-effects risk estimates to man from existing and/or developing energy-related technologies supports the DOE goal of increasing and diversifying national energy resources and decreasing risks to human h… more
Date: February 1, 1986
Creator: Park, J. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effects of coal rank on the chemical composition and toxicological activity of coal liquefaction materials

Description: This report presents data from the chemical analysis and toxicological testing of coal liquefaction materials from the EDS and H-Coal processes operated using different ranks of coal. Samples of recycle solvent from the bottoms recycle mode of the EDS direct coal liquefaction process derived from bituminous, sub-bituminous, and lignite coals were analyzed. In addition, the H-Coal heavy fuel oils derived from bituminous and sub-bituminous coals were analyzed. Chemical methods of analysis include… more
Date: May 1, 1986
Creator: Wright, C.W. & Dauble, D.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

NMR studies of selective population inversion and spin clustering

Description: This work describes the development and application of selective excitation techniques in Nuclear Magnetic Resonance. Composite pulses and multiple-quantum methods are used to accomplish various goals, such as broadband and narrowband excitation in liquids, and collective excitation of groups of spins in solids. These methods are applied to a variety of problems, including non-invasive spatial localization, spin cluster size characterization in disordered solids and solid state NMR imaging.
Date: February 1, 1986
Creator: Baum, J.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Directory of Analytical Methods, Department 1820

Description: The Materials Characterization Department performs chemical, physical, and thermophysical analyses in support of programs throughout the Laboratories. The department has a wide variety of techniques and instruments staffed by experienced personnel available for these analyses, and we strive to maintain near state-of-the-art technology by continued updates. We have prepared this Directory of Analytical Methods in order to acquaint you with our capabilities and to help you identify personnel who … more
Date: January 1, 1986
Creator: Whan, R.E. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Proton and deuterium NMR experiments in zero field. [Perdeuterated p-demethoxybenzene, perdeuterated malonic acid, diethyl terephthalate-d4, nonadecane-2,2'-D2, sodium propionate-D2]

Description: High field solid-state NMR lineshapes suffer from inhomogeneous broadening since resonance frequencies are a function of molecular orientation. Time domain zero field NMR is a two-dimensional field-cycling technique which removes this broadening by probing the evolution of the spin system under zero applied field. The simplest version, the sudden transition experiment, induces zero field evolution by the sudden removal of the applied magnetic field. Theory and experimental results of this exper… more
Date: February 1, 1986
Creator: Millar, J. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Detailed transient model of a liquid-metal heat pipe

Description: A detailed transient model of a liquid-metal heat pipe is being developed. The model includes start from the frozen state, with provision for free-molecule flow, and proceeds through the steady-state operating conditions. The KACHINA method has been selected for simulating the compressible flow in the core; the SIMPLER method, for simulating the liquid flow in the wicks and grooves. The computational methods have been demonstrated on a Compaq Deskpro II. The FORTRAN cove is currently being conv… more
Date: January 1, 1986
Creator: Costello, F.A.; Montague, A.F. & Merrigan, M.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Status of fusion reactor blanket design

Description: The recent Blanket Comparison and Selection Study (BCSS), which was a comprehensive evaluation of fusion reactor blanket design and the status of blanket technology, serves as an excellent basis for further development of blanket technology. This study provided an evaluation of over 130 blanket concepts for the reference case of electric power producing, DT fueled reactors in both Tokamak and Tandem Mirror (TMR) configurations. Based on a specific set of reactor operating parameters, the curren… more
Date: February 1, 1986
Creator: Smith, D. L. & Sze, D. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Beam Developments for the Harwell Microprobe System

Description: A consequence of the rapid development of micron and submicron size electronic devices is the diminished applicability of high energy ion microprobes with their present resolution limitations to the study of such components. Although submicron beams have been reported the available beam current is barely sufficiently for PIXE and is not adequate for RBS. This lack of lateral resolution is due to low beam brightness at the microprobe object and aberrations in the focusing elements. As part of a … more
Date: January 1, 1986
Creator: Read, P. M.; Cookson, J. A. & Alton, G. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Decontamination and decommissioning plan for processing contaminated NaK at the INEL

Description: This decontamination and decommissioning (D D) plan describes the work elements and project management plan for processing four containers of contaminated sodium/potassium (NaK) and returning the Army Reentry Vehicle Facility Site (ARVFS) to a reusable condition. The document reflects the management plan for this project before finalizing the conceptual design and preliminary prototype tests of the reaction kinetics. As a result, the safety, environmental, and accident analyses are addressed as… more
Date: September 1, 1986
Creator: LaRue, D. M. & Dolenc, M. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Electrical conductivity and equation of state of liquid nitrogen, oxygen, benzene, and 1-butene shocked to 60 GPa

Description: Measurements are reported for the electrical conductivity of liquid nitrogen (N/sub 2/), oxygen (O/sub 2/) and benzene (C/sub 6/H/sub 6/), and Hugoniot equation of state of liquid 1-butene (C/sub 4/H/sub 8/) under shock compressed conditions. The conductivity data span 7 x 10/sup -4/ to 7 x 10/sup 1/ ..cap omega../sup -1/cm/sup -1/ over a dynamic pressure range 18.1 to 61.5 GPa and are discussed in terms of amorphous semiconduction models which include such transport phenomena as hopping, perco… more
Date: October 8, 1986
Creator: Hamilton, D. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Experimental and analytical investigations of magnetohydrodynamic flows near the entrance to a strong magnetic field

Description: An experimental program on liquid metal MHD phenomena relevant to blanket engineering is being carried out at ANL's ALEX facility. The experiments carried out at the facility are aimed towards detailed measurements of 3-D MHD flow characteristics to enlarge the existing data base and to provide validation of existing analytical approaches. Results of the first series of experiments, dealing with three dimensional MHD effects in a circular thin conducting wall duct in the fringing field of a str… more
Date: January 1, 1986
Creator: Picologlou, B. F.; Reed, C. B. & Dauzvardis, P. V.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Liquid Fuels from Lignins: Annual Report

Description: This task was initiated to assess the conversion of lignins into liquid fuels, primarily of lignins relevant to biomass-to-ethanol conversion processes. The task was composed of a literature review of this area and an experimental part to obtain pertinent data on the conversion of lignins germane to biomass-to-ethanol conversion processes.
Date: January 1, 1986
Creator: Chum, H. L. & Johnson, D. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Using Temperature-Programmed Reaction for Kinetic Analysis of Reactions in Dilute Aqueous Solutions at High Pressure

Description: The technique of temperature-programmed reaction (TPR) is shown to be a practical experimental method for determining reaction-rate expressions and kinetics parameters for reactions in dilute aqueous solutions under high ambient pressure. By sampling and measuring the extent of reaction during a rise in temperature, information normally obtained from a series of isothermal batch kinetics experiments can be found in a single TPR test. The use of nonlinear least-squares regression eliminates the … more
Date: January 1, 1986
Creator: Brown, L. F. & Robinson, B. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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