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ALICE, A Hybrid Lagrangian-Eulerian Code for Calculating Fluid-Structure Interaction Transients in Fast-Reactor Containment
This report describes ALICE, which uses an arbitrary Lagrangian-Eulerian method to analyze the response of the contaminant vessel and other solid media inside a reactor contaminant.
Date:
August 1979
Creator:
Chu, Han Y.
System:
The UNT Digital Library
Multichannel Clad-Relocation Model for Fast-Reactor Loss-of-Flow Accidents
During an unprotected undercooling accident in a liquid-metal fast breeder reactor, the motion and relocation of the molten cladding can he important because of its potentially significant effect on reactivity, blockage formation, and subsequent fuel motion. The present study analyzes the clad relocation problem1 based on a multichanneI film-flow model. The important aspects considered in the analysis are the nonuniform transverse ci1ad-melting pattern and diversions of sodium vapor flow within a subassembly. It has been shown that the motion of molten clad and subsequent blockage formations can be significantly influenced by this interconnected channel effect. Several sample cmi cu lat ions have been made in order to demonstrate these points.
Date:
August 1979
Creator:
Ishii, M.; Chen, W. L. & Grolmes, M. A.
System:
The UNT Digital Library
Recovery of Actinides from TBP-Na₂CO₃ Scrub-Waste Solutions: the ARALEX Process
A flow-sheet for the recovery of actinides from TBP-Na2CO3scrub-waste solutions has been developed, based on batch extraction data, and tested, using laboratory-scale countercurrent extraction techniques. The process, called the ARALEX process, uses 2-ethyl-1-hexanol (2-EHOH) to extract the TBP degradation products (HDBP and H/sub 2/MBP) from acidified Na2CO3scrub waste leaving the actinides in the aqueous phase. Dibutyl and monobutyl phosphoric acids are attached to the 2-EHOH molecules through hydrogen bonds, which also diminish the ability of the HDBP and H2/MBP to complex actinides. Thus all actinides remain in the aqueous raffinate. Dilute sodium hydroxide solutions can be used to back-extract the dibutyl and monobutyl phosphoric acid esters as their sodium salts. The 2-EHOH can then be recycled. After extraction of the acidified carbonate waste with 2-EHOH, the actinides may be readily extracted from the raffinate with DHDECMP or, in the case of tetra- and hexavalent actinides, with TBP. The ARALEX process can also be applied to other actinide waste streams which contain appreciable concentrations of polar organic compounds (e.g., detergents) that interfere with conventional actinide ion exchange and liquid-liquid extraction procedures.
Date:
August 1979
Creator:
Horwitz, E. P.; Bloomquist, C. A. A.; Mason, G. W.; Leonard, R. A. & Ziegler, A. A.
System:
The UNT Digital Library
Application of the NNWSI [Nevada Nuclear Waste Storage Investigations] Unsaturated Test Method to Actinide Doped SRL [Savannah River Laboratory] 165 Type Glass
The results of tests done using the Unsaturated Test Method are presented. These tests, done to determine the suitability of glass in a potential high-level waste repository as developed by the Nevada Nuclear Waste Storage Investigations Project, simulate conditions anticipated for the post-containment phase of the repository when only limited contact between the waste form and water is expected. The reaction of glass occurs via processes that are initiated due to glass/water vapor and glass/liquid water contact. Vapor interaction results in the initiation of an exchange process between water and the more mobile species (alkalis and boron) in the glass. The liquid reaction produces interactions similar to those seen in standard leaching tests, except due to the limited amount of water present and the presence of partially sensitized 304L stainless steel, the formation of reaction products greatly exceeds that found in MCC-1 type leach tests. The effect of sensitized stainless steel on the reaction is to enhance breakdown of the glass matrix thereby increasing the release of the transuranic elements from the glass. However, most of the plutonium and americium released is entrained by either the metal components of the test or by the reaction phases, and is not released …
Date:
August 1990
Creator:
Bates, John K. & Gerding, Thomas J.
System:
The UNT Digital Library
Chemistry of Gaseous and Condensed Products in Coal Combustion and Conversion Systems
A recently developed computer program, based on geometric programming, was used to evaluate the chemistry of gaseous and condensed products that arise in conversion of Illinois bituminous coal under both oxidizing and reducing conditions.
Date:
August 1989
Creator:
Sinha, S. N.; Natesan, K. & Blander, M.
System:
The UNT Digital Library
Nuclear Technology Programs Semiannual Progress Report: October 1987-March 1988
Progress report of the Argonne National Laboratory's Nuclear Technology Programs, including investigations in applied physical chemistry, separation science and technology, and waste management.
Date:
August 1990
Creator:
Argonne National Laboratory. Chemical Technology Division.
System:
The UNT Digital Library
Physics Division Annual Review 1 April 1986 - March 1987
Report of activities of the Argonne Physics Division, including medium-energy physics research, ATLAS research, theoretical nuclear physics, superconducting LINAC development, and accelerator operations.
Date:
August 1987
Creator:
Argonne National Laboratory. Physics Division.
System:
The UNT Digital Library
Cs--U--O Phase Diagram and its Application to Uranium--Plutonium Oxide Fast Reactor Fuel Pins
Portions of the cesium-uranium-oxygen system have been investigated between 873 and 1273°K and a phase diagram has been constructed using our data and the data of other workers in the field. Thermodynamic and kinetic data have been used to examine the reactions that occur in fast-reactor fuel pins between fission-product cesium and the uranium oxide blanket. It was concluded that at the low oxygen potentials existing at the interface between the uranium-plutonium mixed-oxide and the uranium oxide blanket, Cs₂UO₄ is the only Cs-U-O compound expected to be formed in the uranium oxide blanket.
Date:
August 1977
Creator:
Davis, S. A.; Johnson, C. E.; Johnson, I.; Fee, D. C.; Shinn, W. A. & Staahl, G.
System:
The UNT Digital Library
Nuclear Magnetic Resonance Imaging of Green-State Ceramics
Proton (¹H) nuclear magnetic resonance (NMR) imaging techniques are investigated as a means to nondestructively characterize green-state (unfired) Si{sub 3}N{sub 4} ceramic components. Spectroscopic results indicate that the organic additives used in the injection molding of ceramics behave as soft solids, with broad spectral peak widths (T₂ <0.5 ms) and moderate multicomponent spin-lattice relaxation rates (T{sub 1} ranging from 11 ms to 1 s). Because of the intrinsically different spectral characteristics of the organic additives, conventional-solution NMR imaging techniques cannot be applied to these materials. Hence, the authors developed specialized NMR imaging accessories capable of applying high magnetic field gradients in a back-projection protocol. NMR images were acquired of injection-molded test bars that had been fabricated with different mixing and molding parameters. Organic concentrations determined from the NMR images were correlated with results obtained through destructive testing. The correlation suggests that NMR imaging is a viable technique for quantifying organics in injection-molded green-state ceramics.
Date:
August 1990
Creator:
Gopalsami, Nachappa; Dieckman, S. L.; Ellingson, W. A.; Botto, Robert E.; Wong, P. S.; Yeh, H. C. et al.
System:
The UNT Digital Library
Theory Institute in Automated Reasoning : Held at Argonne National Laboratory, August 6-10, 1990
On August 6--10, 1990, Argonne National Laboratory hosted a Theory Institute in Automated Reasoning. The institute was organized by the Mathematics and Computer Science Division and was supported by special funding from Argonne's Physical Research Program Administration. The focus of the Institute was on the obstacles confronting the effective automation of reasoning. The objective was to lay the groundwork for formulating a theory governing the interrelationship of representation, inference rule, and strategy. Here we summarize the activities that took place during the week-long Institute. We also present an evaluation of the progress achieved-progress that includes the solution of challenge questions, the increasing use of both our database of problems and our automated reasoning program OTTER, and the discovery of new used for OTTER.
Date:
August 1990
Creator:
Wos, Larry
System:
The UNT Digital Library
Spartan "Cruiser" Commercial Airplane (British): A Six-Seat Low-Wing Cantilever Monoplane
Circular describing the Spartan "Cruiser", which is a six-seat low-wing cantilever commercial monoplane with three engines. Details of the construction, fuselage, wing, tail unit, power plant, fuel system, lubrication system, landing gear, controls, cabin arrangement, characteristics, performance, drawings, and photographs are provided.
Date:
August 1932
Creator:
unknown
System:
The UNT Digital Library
Effect of the Performance of a Turbosupercharged Engine of an Exhaust-Gas-to-Air Heat Exchanger for Thermal Ice Prevention
This report presents the results of a flight investigation to determine the effect on the performance of a turbosupercharged engine of an exhaust-gas-to-air heat exchanger installed between the engine-exhaust collector ring and the turbosupercharger. The background, results, and discussion of the investigation are described.
Date:
August 23, 1945
Creator:
Look, Bonne C.
System:
The UNT Digital Library
Supplement to Comparison of Automatic Control Systems
"This analysis deals with the indirect regulator, wherefrom the behavior of the direct regulator is deduced as a limiting case. The prime mover is looked upon as "independent of the load": a change in the adjusting power (to be applied) for the control link (as, for example, in relation to the adjusting path (eta) with pressure valves or the rudder of vessels) does not modify the actions of the prime mover. Mass forces and friction are discounted; "clearance" also is discounted in the transmission links of the regulator" (p. 1).
Date:
August 1941
Creator:
Oppelt, W.
System:
The UNT Digital Library
An Investigation of Aircraft Heaters 18: A Design Manual for Exhaust Gas and Air Heat Exchangers
Report presenting a summary of a series of reports regarding heat exchangers, and in particular, the design of exhaust gas and air heat exchangers. The four parts included are a summary of heat transfer equations, single pass heat exchangers, heater performance in flight, and appendicies with additional aerodynamic information.
Date:
August 1945
Creator:
Boelter, L. M. K.; Martinelli, R. C.; Romie, F. E. & Morrin, E. H.
System:
The UNT Digital Library
The Breda 32 Commercial Airplane (Italian): A Three-Engine All-Metal Low-Wing Monoplane
Circular presenting a description of the Breda 32, which is a commercial airplane with three engines and an all-metal construction. Details regarding the design, components, flight qualities, drawings, and photographs are provided.
Date:
August 1932
Creator:
unknown
System:
The UNT Digital Library
The Westland "Widgeon III": "Cirrus II or "Genet II" Engine
The Widgeon III is a parasol type monoplane. One of its strongest features was the high degree of visibility available to the pilot. A description of the design, construction, flight characteristics, blueprints, and photographs are provided.
Date:
August 1927
Creator:
unknown
System:
The UNT Digital Library
An experimental study of five annular air inlet configurations at subsonic and transonic speeds
Report presenting an investigation of an NACA 1-80-100 nose inlet fitted alternately with an elliptical, a parabolic, a 14 degree-inch conical, and a 22 degree-inch conical central body at subsonic and transonic speeds in the 8-foot transonic tunnel. Drag, surface-pressure, and pressure-recovery measurements were obtained at 0 degrees angle of attack through a range of Mach numbers. Results regarding tunnel boundary interference, surface-pressure distribution, external drag, pressure recovery, and propulsive thrust comparison are provided.
Date:
August 19, 1953
Creator:
Pendley, Robert E.; Milillo, Joseph R.; Fleming, Frank F. & Bryan, Carroll R.
System:
The UNT Digital Library
Feasibility of Underground Storage/Disposal of Noble Gas Fission Products
The quantities of krypton-85 that can be released to the environment from nuclear energy production are to be limited after 1983 by Federal regulations. Although procedures for collecting the krypton-85 released in the nuclear fuel cycle have been developed to the point that they are commercially available, procedures for terminal disposal of the collected gas are still being examined for their feasibility. In this work, the possibilities of underground disposal of krypton-85 by several techniques were evaluated. It was concluded that (1) disposal of krypton-85 as a solution in water or other solvents in deep wells would have the major disadvantages of liquid migration and the requirement of extremely large volumes of solvent; (2) disposal as bubbles entrained in cement grout injected underground presents the uncertainty of gaseous migration through permeable solid grout; (3) disposal by injection into abandoned oil fields would be favored by solubility of krypton in residual hydrocarbons, but has the disadvantages that such fields contain numerous shafts offering avenues of escape and also that the fields may be reworked in the future for their hydrocarbon residues; (4) underground retention of krypton-85 injected as a gas may be promising, given the right lithology, through entrapment in interstices …
Date:
August 1979
Creator:
Winar, R. M.; Trevorrow, L. E. & Steindler, M. J.
System:
The UNT Digital Library
Reactor Physics Studies in the Steam Flooded GCFR-Phase 2 Critical Assembly
A possible accident scenario in a Gas-Cooled Fast Reactor (GCFR) is the leakage of secondary steam into the core. Considerable analytical effort has gone into the study of the effects of such an accidental steam entry. The work described in this report represents the first full scale experimental study of the steam-entry phenomenon in GCFRs. The reference GCFR model used for the study was the benchmark GCFR Phase II assembly, and polyethylene foam was used to provide a very homogeneous steam simulation.
Date:
August 1978
Creator:
Bhattacharyya, S. K.
System:
The UNT Digital Library
Liquid-Liquid Contact in Vapor Explosion
The contact of two liquid materials, one of which is at a temperature substantially above the boiling point of the other, can lead to fast energy conversion and a subsequent shock wave. This phenomenon is called a vapor explosion. One method of producing intimate, liquid-liquid contact (which is known to be a necessary condition for vapor explosion) is a shock tube configuration. Such experiments in which water was impacted upon molten aluminum showed that very high pressures, even larger than the thermodynamic critical pressure, could occur. The mechanism by which such sharp pressure pulses are generated is not yet clear. The report describes experiments in which cold liquids (Freon-11, Freon-22, water, or butanol) were impacted upon various hot materials (mineral oil, silicone oil, water, mercury, molten Wood's metal or molten salt mixture).
Date:
August 1978
Creator:
Segev, Aryeh
System:
The UNT Digital Library
EBR-2 Fisson-Product-Source Test No. 1
A fission-product source (FPS) was irradiated in EBR-II to provide data for calibrating the facility's fuel-element rupture detector (FERD), which is a delayed-neutron monitor, and germanium-lithium argon-scanning system (GLASS), a fission-gas-activity monitor. A metal alloy source, Ni-3.2 wt.% uranium, provided quantitative recoil release of the fission-product nuclides. The source alloy, in tubular form, was irradiated as core-region segments of 18 capsules in the FPS subassembly. The irradiation showed that the response of the FERD was linear with increasing reactor power. The magnitude of the FERD signal was dependent on local fission rate for the FPS and the flow path of the sodium carrying the delayed-neutron emitters. The relatively high fission-gas activity released by the FPS allowed accurate calibration of the GLASS under several modes of operation and provided data for verifying a gas-release model for the reactor.
Date:
August 1978
Creator:
Strain, R. V.; Fogle, G. L.; Thresh, H. R.; Heinrich, R. R.; Freyer, R. M.; So, B. Y. C. et al.
System:
The UNT Digital Library
Chemical Engineering Division Research Highlights
Report on electrochemical energy development, including development of advanced, high-temperature lithium/metal sulfide batteries for vehicle propulsion and stationary energy storage.
Date:
August 1978
Creator:
Argonne National Laboratory. Chemical Engineering Division.
System:
The UNT Digital Library
Advanced Fuel Cell Development Progress Report: April-June 1978
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward understanding and improving the components of molten-carbonate-electrolyte fuel cells operated at temperatures near 925 K.
Date:
August 1978
Creator:
Ackerman, J. P.; Pierce, Robert Dean; Nelson, P. A.; Arons, R. M.; Kinoshita, K.; Sim, J. W. et al.
System:
The UNT Digital Library
The FSTATE Code
A transient, two-dimensional code has been developed to provide a detailed description of fuel-clad conditions during a TOP accident. Emphasis has been directed toward development of a framework within which fuel motion and ejection can be viewed following pin failure. All code modules have been rigorously verified. Illustrative application of the code, with the exercise of its many and varied features, have been included.
Date:
August 1978
Creator:
Meek, C. C.
System:
The UNT Digital Library