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Serial/Series Title
NACA Research Memorandums
469
Atomic Energy Commission Reports
367
NACA Technical Notes
338
United States Department of Energy Grand Junction Office Reports
254
GJBX
198
NACA Technical Memorandums
152
United States Geological Survey Reports
149
NACA Wartime Reports
107
Argonne National Laboratory Reports
95
University of California Radiation Laboratory Reports
90
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Intercooler cooling-air weight flow and pressure drop for minimum drag loss
Report presenting an analysis of the power losses in airplane flight of cross-flow plate and tubular intercoolers to determine the cooling-air weight flow and pressure drop that give minimum total power loss for any given cooling effectiveness. The investigation covers a range of flight conditions of altitude, airspeed, lift-drag ratio, supercharger-pressure ratio, and adiabatic efficiency.
Date:
April 1944
Creator:
Reuter, J. George & Valerino, Michael F.
Object Type:
Report
System:
The UNT Digital Library
Lioré-Olivier LeO 194 Seaplane
Report presenting a description of the Lioré-Olivier LeO 194 seaplane and a particular series of flights made over several months. Its fuselage is made entirely of wood. It has 6 gasoline tanks each with a capacity of 255 liters. It is a single engine biplane with wings mounted above the body of the seaplane.
Date:
April 1927
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Review of Flight Tests of NACA C and D Cowlings on the XP-42 Airplane
Report presenting the results of flight tests of the performance and cooling characteristics of three NACA D cowlings and of a conventional NACA C cowling on the XP-42 airplane. The D cowling is, generally, characterized by the use of an annular inlet and diffuser section for the engine-cooling air. An increase in maximum speed was noted in the XP-42 airplane due to the change from a C cowling to a D cowling.
Date:
April 1943
Creator:
Johnston, J. Ford
Object Type:
Report
System:
The UNT Digital Library
FORTIO: a FORTRAN I/O Interface
A set of OS/370 Basic Assembly Language programs is described which provides a FORTRAN IV interface with OS/370 Macros.
Date:
April 1976
Creator:
Shalla, L.
Object Type:
Report
System:
The UNT Digital Library
Final Report on the Small-Scale Vapor-Explosion Experiments Using a Molten NaCl-H2O System
Vapor explosions were produced by injecting small quantities of water into a container filled with molten sodium chloride. Minimum explosion efficiencies, as evaluated from reaction-impulse measurements, were relatively large. Subsurface movies showed that the explosions resulted from a two-step sequence: an initial bulk-mixing phase in which the two liquids intermix on a large scale, but remain locally separated by an insulating gas-vapor layer; and a second step, immediately following breakdown of the gas layer, during which the two liquids locally fragment, intermix, and pressurize very rapidly. The experimental results were compared with various mechanistic models that had been proposed to explain vapor explosions. Early models seemed inconsistent with the results. More recent theories suggest that vapor explosions may be caused by a nucleation limit or by dynamic mixing combined with high surface-heat-transfer rates. Both types of models are consistent with the results.
Date:
April 1976
Creator:
Anderson, R. P. & Bova, L.
Object Type:
Report
System:
The UNT Digital Library
High-Performance Batteries for Off-Peak Energy Storage and Electric-Vehicle Propulsion, Progress Report: July-December 1975
Progress report describing the research and management efforts of Argonne National Laboratory's program on high-performance lithium/metal sulfide batteries during the period July-December 1975. The batteries are being developed for two applications: off-peak energy storage in electric utility networks and electric-vehicle propulsion. The battery designs for the two applications differ, particularly in cell configuration and electrode design because of the differing performance requirements.
Date:
April 1976
Creator:
Nelson, P. A.; Ivins, R. O.; Yao, N. P.; Battles, J. E.; Chilenskas, A. A.; Gay, E. C. et al.
Object Type:
Report
System:
The UNT Digital Library
Simple Conduction Model with Phase Change for Fuel Pin
A simple conduction model with phase change has been developed for the transient analysis of a fuel pin based on average properties and lumped-parameter techniques. The transient behavior of fuel and cladding can be accurately described by simple analytical expressions that agree with conventional numerical approaches for under-cooling transient analysis. If it be assumed that the heat-transfer resistance between the fuel and cladding remains the same for both steady-state and transient periods, the phase-change problem for fuel and cladding melting can be significantly simplified. BY using the predetermined average overall heat-transfer coefficient across a fuel pin in the steady-state period, the average transient fuel and cladding temperatures can be formulated analytically. For loss of flow at constant power, the start of melting and complete melting for both the fuel and cladding can be estimated with considerable accuracy.
Date:
April 1976
Creator:
Chen, W. L.; Ishii, M. & Grolmes, M. A.
Object Type:
Report
System:
The UNT Digital Library
Risk-assessment methodology for fast breeder reactors
The methods applied or proposed for risk assessment of nuclear reactors are reviewed, particularly with respect to their applicability for risk assessment of future commercial fast breeder reactors. All methods are based on the calculation of accident consequences for relatively few accident scenarios. The role and general impact of uncertainties in fast-reactor accident analysis are discussed. The discussion shows the need for improvement of the methodology. A generalized and improved risk-assessment methodology is outlined and proposed (accident-spectra-progression approach). The generalization consists primarily of an explicit treatment of uncertainties throughout the accident progression. The results of this method are obtained in form of consequence distributions. The width and shape of the distributions depend in part on the superposition of the uncertainties. The first moment of the consequence distribution gives an improved prediction of the ''average'' consequence. The higher-consequence moments can be used for consideration of risk aversion. The assessment of the risk of one or a certain number of nuclear reactors can only provide an ''isolated'' risk assessment. The general problem of safety risk assessment and its relation to public acceptance of certain modes of power production is a much broader problem area, which is also discussed.
Date:
April 1976
Creator:
Ott, Karl O.
Object Type:
Report
System:
The UNT Digital Library
Measurement of the Hydrogen Yield in the Radiolysis of Water by Dissolved Fission Products
Hydrogen from the radiolysis of water by dissolved fission products is stripped from the solution and collected by bubbling carbon dioxide through the solution. Quantitative measurements of the G value for hydrogen show that the yield is essentially the same as would be obtained by external gamma radiolysis of nonradioactive solutions of the same chemical composition. The hydrogen yield can be enhanced by addition of a hydrogen-atom donor, such as formic acid, to the solution. The yield of hydrogen from fission-waste solutions is discussed with respect to the question of whether it represents a significant energy source.
Date:
April 1976
Creator:
Sauer, M. C., Jr.; Hart, E. J.; Flynn, K. F. & Gindler, J. E.
Object Type:
Report
System:
The UNT Digital Library
Studies of Unprotected Loss-of-Flow Accidents for the Clinch River Breeder Reactor
Studies of unprotected loss-of-flow accidents in the CRBR for various rates of flow coast-down and with various options in the SAS 3A code did not lead to conditions for a violent disassembly. Maximum fuel temperatures using the SLUMPY module for disassembly were in the range 4000-4500 deg C. An approximate treatment of the LOF-driven TOP accident, not properly modeled by SAS 3A, indicates the possibility of some increase in accident severity. The effect of fission gas in dispersing fuel was not taken into account in these calculations. Parameter variations included the presence or absence of axial fuel expansion and of clad motion and use of the moving coolant film model versus the static film model. Study of severe pipe rupture accidents with scram indicated that pin power density and fuel-clad conductance were important parameters in determining what coolant flow rate was needed to prevent boiling after the rupture. It appears that for the CRBR when engineering hot channel factors are considered, this fraction would have to exceed 25 percent.
Date:
April 1976
Creator:
Hummel, Harry H.; Pizzica, P. A. & Kalimullah
Object Type:
Report
System:
The UNT Digital Library
Environmental Research Division Annual Report: Part 2, Center for Human Radiobiology, July 1983 - June 1984
Current status of epidemiological studies of the late effects of internal radium in humans, and mechanistic investigations of those effects.
Date:
April 1985
Creator:
Argonne National Laboratory. Radiological and Environmental Research Division.
Object Type:
Report
System:
The UNT Digital Library
Nuclear Technology Programs Quarterly Progress Report: July-September 1984
Quarterly report on activities of Argonne National Laboratory's Nuclear Technical Programs, including results of studies to measure the degradation of backfill materials after their exposure to temperature and humidity expected in high-level nuclear waste repositories.
Date:
April 1985
Creator:
Steindler, M. J.
Object Type:
Report
System:
The UNT Digital Library
Advanced Thermoplastic Materials for District Heating Piping Systems
The work described in this report represents research conducted in the first year of a three-year program to assess, characterize, and design thermoplastic piping for use in elevated-temperature district heating (DH) systems. The present report describes the results of a program to assess the potential usefulness of advanced thermoplastics as piping materials for use in DH systems.
Date:
April 1988
Creator:
Raske, D. T. & Karvelas, D. E.
Object Type:
Report
System:
The UNT Digital Library
Chemical Technology Division Annual Technical Report 1985
Highlights of the Chemical Technology (CMT) Division's activities during 1985 are presented. In this period, CMT conducted research and development in areas that include advanced batteries--mainly lithium-alloy/metal sulfide and sodium/sulfur, advanced fuel cells with molten carbonate or solid oxide electrolytes, corrosion-protective coatings for high-strength steel, coal utilization, including the heat and seed recovery technology for coal-fired magnetohydrodynamics plants and the technology for fluidized-bed combustion, methodologies for recovery of energy from municipal waste nuclear technology related to waste management, the recovery processes for discharged fuel and the uranium blanket in a sodium-cooled fast reactor, and proof of breeding in a light water breeder reactor, and physical chemistry of selected materials in environments simulating those of fission and fusion energy systems.
Date:
April 1986
Creator:
Steindler, M. J.; Nelson, P. A.; Ackerman, J. P. & Johnson, C. E.
Object Type:
Report
System:
The UNT Digital Library
Instability Characteristics of Fluidelastic Instability of Tube Rows in Crossflow
An experimental study is reported to investigate the jump phenomenon in critical flow velocities for tube rows with different pitch-to-diameter ratios and the excited and intrinsic instabilities for a tube row with a pitch-to-diameter ratio of 1.75. The experimental data provide additional insights into the instability phenomena of tube arrays in crossflow.
Date:
April 1986
Creator:
Chen, Shoei-Sheng & Jendrzejczyk, J. A.
Object Type:
Report
System:
The UNT Digital Library
Site Surveillance and Maintenance Program for Palos Park : Report for 1985
Results of environmental monitoring program conducted at Palos Park.
Date:
April 1986
Creator:
Golchert, N. W. & Sedlet, J.
Object Type:
Report
System:
The UNT Digital Library
Experimental Study on Impact/Fretting Wear in Heat Exchanger Tubes
A data bank of field experiences with heat exchanger tube vibration reveals numerous cases of tube failures at, or near, the baffle. The objective of this study is to provide qualitative impact/fretting wear information for heat exchanger tubes through the performance of a series of tests involving the pertinent parameters: impact force level, between the tube and its support; tube to support plate hole clearance; tube support plate thickness; and tube vibration frequency. The characteristics of impact/fretting wear relative to tube motion pattern, material combination and surrounding fluid were also investigated. The test apparatus consists of a cantilevered tube with a simulated tube support plate at the ''free end''. Tube vibration is induced by an electromagnetic exciter to simulate the flow-induced tube motion occurring in a real heat exchanger at the tube/tube support plate interface. Tests are conducted in air, water, and oil, all at room temperature. Wear rate increases significantly with the magnitude of the impact force between the tube and its support plate; the degree and trend of the wear rates are highly dependent on the mechanical and metallurgical properties of the tube/support material combination; the rate of impact/fretting wear decreases with increasing frequency. An empirical formula is …
Date:
April 1985
Creator:
Cha, J. H.; Wambsganss, M. W. & Jendrzejczyk, J. A.
Object Type:
Report
System:
The UNT Digital Library
The Transformation of Heat in an Engine
This report presents a thermodynamic basis for rating heat engines. The production of work by a heat engine rests on the operation of supplying heat, under favorable conditions, to a working fluid and then taking it away.
Date:
April 1929
Creator:
Neumann, Kurt
Object Type:
Report
System:
The UNT Digital Library
The C.A.M.S. 60 Seaplane (French): A Twin-Engine Bombing and Torpedo Monoplane
Circular presenting a description of the C.A.M.S. 60, which is a twin-engine monoplane with a medium-thickness wing and two floats. Details of the wings, engines, fuselages, floor, rear cabin, floats, and flying qualities are provided.
Date:
April 1931
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The S.A.B.C.A. "S.XI" Commercial Airplane (Belgian): A High-Wing Semicantilever Monoplane
Circular describing the S.A.B.C.A. S.XI commercial airplane, which is a high-wing semicantilever monoplane. Details of the history of its creation, its design, components, engines, fuel tanks, characteristics, performances, drawings, and photographs are provided.
Date:
April 1932
Creator:
Frachet, André
Object Type:
Report
System:
The UNT Digital Library
D.H. 86 "Express Air Liner" (British): A Four-Engine Biplane
Circular describing the De Havilland Express Air Liner, which is a four-engine two-bay biplane of clean and well-streamlined form. Details of the cabin, controls, fuselage, tail, wings, engines, cockpit, characteristics, performance, drawings, and photographs are provided.
Date:
April 1934
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The S.P.C.A. 40 T Commercial Airplane (French): An All-Metal Cantilever Monoplane
Circular describing the S.P.C.A. 40 T, which is a commercial all-metal cantilever airplane that was guided by the two essential requirements of economy and safety in its design. Details of the design, power, test results, fuel tanks, characteristics, performances, drawings, and photographs are provided.
Date:
April 1931
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Farman "F.300" Commercial Airplane (French): A High-Wing Semicantilever Monoplane
Circular describing the Farman F.300 airplane, which is a high-wing semicantilever monoplane. Details of the wings, engine, equipment, safety, characteristics, performance, drawings, and photographs are provided.
Date:
April 1930
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Westland Iv Commercial Monoplane (British): Three "Cirrus III" Engine
Circular presenting a description of the Westland IV, which is a high-wing monoplane with strut bracing, two outboard engines, a fairly large fuselage that provides comfortable cabin accommodation, and wide-track landing gear. Details of the design, flight characteristics, blueprints, and photographs are provided.
Date:
April 1929
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library