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HVDC-AC system interaction from AC harmonics. Volume 1. Harmonic impedance calculations. Final report
Improved methods are needed to characterize ac system harmonic behavior for ac filter design for HVDC systems. The purpose of this General Electric Company RP1138 research is to evaluate the present filter design practice and to investigate methods for calculating system harmonic impedances. An overview of ac filter design for HVDC systems and a survey of literature related to filter design have been performed. Two methods for calculating system harmonic impedances have been investigated. In the measurement method, an instrumentation system for measuring system voltage and current has been assembled. Different schemes of using the measurements to calculate system harmonic impedances have been studied. In the analytical method, a procedure to include various operating conditions has been proposed. Computer programs for both methods have been prepared, and the results of the measurement and analytical methods analyzed. A conclusion of the project is that the measurement and analytical methods both provided reasonable results. There are correlations between the measured and analytical results for most harmonics, although there are discrepancies between the assumptions used in the two methods. A sensitivity approach has been proposed to further correlate the results. From the results of the analysis, it is recommended that both methods should …
Date:
September 1, 1982
Creator:
Breuer, G D; Chow, J H; Lindh, C B; Miller, N W; Numrich, F H; Price, W W et al.
Object Type:
Report
System:
The UNT Digital Library
SATER/LLNL: an interactive identification/estimation/control package
This issue of the computer program newsletter focuses on SATER/LLNL - an interactive code for identification, estimation, and classical control. A brief description of the SATER/LLNL operation is included as well as a sample session. Attached is the fundamental reference that details more of the package.
Date:
September 1, 1982
Creator:
Candy, J V & Journeay, C H
Object Type:
Report
System:
The UNT Digital Library
RMDF leach-field decontamination. Final report
The objective of the decontamination effort was to place the Radioactive Materials Disposal Facility (RMDF) leach field in a condition suitable for release for unrestricted use. Radioactively contaminated soil was excavated from the leach field to produce a condition of contamination as low as reasonably achievable (ALARA). The contaminated soil was boxed and shipped to an NRC-licensed burial site at Beatty, Nevada, and to the DOE burial site at Hanford, Washington. The soil excavation project successfully reduced the contamination level in the leach field to background levels, except for less than 0.6 mCi of Sr-90 and trace amounts of Cs-137 that are isolated in cracks in the bedrock. The cracks are greater than 10 ft below the surface and have been sealed with a bituminous asphalt mastic. A pathways analysis for radiation exposure to humans from the remaining radionuclides was performed, assuming intensive home gardening, and the results show that the total first year whole body dose equivalent would be about 0.1 mrem/year. This dose equivalent is a projection for the hypothetical ingestion of vegetables grown on the site. Assuming that an average adult consumes 64 kg of green leafy vegetables per year and that the entire yearly supply could …
Date:
September 15, 1982
Creator:
Carroll, J W; Marzec, J M & Stelle, A M
Object Type:
Report
System:
The UNT Digital Library
Preliminary flashing multiphase flow analysis with application to letdown valves in coal-conversion processes
As part of the Oak Ridge National Laboratory's technical support to large coal liquefaction projects, attempts have been made to (1) develop the methodology for characterizing and predicting multicomponent, multiphase, non-Newtonian flow behavior within letdown valves and devices, and (2) analyze the fluid flow in the entire letdown region of the process. An engineering model that can be used in the analysis of multicomponent, multiphase, flashing, flowing systems has been developed. A preliminary version of a user-oriented computer code for this model has been developed and is fully described.
Date:
September 1, 1982
Creator:
Ott, L. J. & Khan, A. A.
Object Type:
Report
System:
The UNT Digital Library
Consolidated fuel-reprocessing program. Progress report, April 1-June 30, 1982
Highlights of progress accomplished during the quarter ending June 30, 1982 are summarized. Discussion is presented under the headings: Process development; Laboratory R and D; Engineering research; Engineering systems; Integrated equipment test facility operation; Instrument development; and HTGR fuel reprocessing.
Date:
September 1, 1982
Creator:
Burch, W D
Object Type:
Report
System:
The UNT Digital Library
Summary of ENDF/B-V evaluations for carbon, calcium, iron, copper, and lead and ENDF/B-V Revision 2 for calcium and iron
This report, together with documents already published, describes the ENDF/B-V evaluations of the neutron and gamma-ray-production cross sections for carbon, calcium, iron, copper, and lead and the ENDF/B-V Revision 2 evaluations for calcium and iron.
Date:
September 1, 1982
Creator:
Fu, C Y
Object Type:
Report
System:
The UNT Digital Library
Development of BEACON technology. Quarterly report, October-December 1981
The BEACON process involves the catalytic deposition of a highly reactive carbon from a gas stream containing carbon monoxide. The carbon-depleted gas is combusted with air to produce power, and the carbon is reacted with steam to produce methane. Laboratory multicycle tests with K1 and K2 catalysts were completed this quarter. Both catalysts were cycled through 40 deposition and steaming cycles. Both catalysts showed good stability. The K1-based material was found to be more active than the K2-based material, both for carbon deposition and for steaming. Gas conversion proceeded to near-equilibrium levels for both catalysts. Investigation of the effects of multicycle operation and carbon loading levels on catalyst C77-K2 stability continued this quarter. Testing in a 1-inch quartz fluid bed reactor showed no significant catalyst deterioration after 40 cycles at low carbon loadings. However, significant morphology changes occurred at higher carbon loadings. During testing in a new 1-1/2 inch diameter fluid bed reactor, there was evidence of inadequate mixing: large variations in carbon loading within the bed were observed, and the bed plugged at the higher carbon loadings. Multicycle testing of K1 and K2 catalysts continued in the 4-inch diameter fluid bed reactor. The K1 catalyst showed no decrease in …
Date:
September 1, 1982
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Klang
Access:
Use of this item is restricted to the UNT Community
Recording of Jonty Harrison's Klang realized in the Electronic Music Studio of Magyar Radio in Budapest during September 1982. It features the sound of earthenware casseroles and electro-acoustic techniques.
Date:
September 1982
Creator:
Harrison, Jonty, 1952-
Object Type:
Sound
System:
The UNT Digital Library
Evaluation of the prompt alerting systems at four nuclear power stations
This report presents evaluations of the prompt notification siren systems at the following four US nuclear power facilities: Trojan, Three Mile Island, Indian Point, and Zion. The objective of these evaluations was to provide examples of an analytical procedure for predicting siren-system effectiveness under specific conditions in the 10-mile emergency planning zone (EPZ) surrounding nuclear power plants. This analytical procedure is discussed in report No. PNL-4227.
Date:
September 1, 1982
Creator:
Towers, D. A.; Anderson, G. S.; Keast, D. N.; Kenoyer, J. L. & Desrosiers, A. E.
Object Type:
Report
System:
The UNT Digital Library
Educational demonstration program using draft detector to locate air infiltration. Final report
A program of education in air infiltration and weatherization is presented. Materials use and drawings of an air leak detector are included. Advertising materials used are also included. (MHR)
Date:
September 30, 1982
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Development of model reference adaptive control theory for electric power plant control applications
The scope of this effort includes the theoretical development of a multi-input, multi-output (MIMO) Model Reference Control (MRC) algorithm, (i.e., model following control law), Model Reference Adaptive Control (MRAC) algorithm and the formulation of a nonlinear model of a typical electric power plant. Previous single-input, single-output MRAC algorithm designs have been generalized to MIMO MRAC designs using the MIMO MRC algorithm. This MRC algorithm, which has been developed using Command Generator Tracker methodologies, represents the steady state behavior (in the adaptive sense) of the MRAC algorithm. The MRC algorithm is a fundamental component in the MRAC design and stability analysis. An enhanced MRC algorithm, which has been developed for systems with more controls than regulated outputs, alleviates the MRC stability constraint of stable plant transmission zeroes. The nonlinear power plant model is based on the Cromby model with the addition of a governor valve management algorithm, turbine dynamics and turbine interactions with extraction flows. An application of the MRC algorithm to a linearization of this model demonstrates its applicability to power plant systems. In particular, the generated power changes at 7% per minute while throttle pressure and temperature, reheat temperature and drum level are held constant with a reasonable level …
Date:
September 15, 1982
Creator:
Mabius, L.E.
Object Type:
Report
System:
The UNT Digital Library
Fluidized-bed pyrolysis of oil shale: oil yield, composition, and kinetics
A quartz isothermal fluidized-bed reactor has been used to measure kinetics and oil properties relevant to surface processing of oil shale. The rate of oil formation has been described with two sequential first-order rate equations characterized by two rate constants, k/sub 1/ = 2.18 x 10/sup 10/ exp(-41.6 kcal/RT) s/sup -1/ and k/sub 2/ = 4.4 x 10/sup 6/ exp(-29.7 kcal/RT) s/sup -1/. These rate constants together with an expression for the appropriate weighting coefficients describe approximately 97/sup +/% of the total oil produced. A description is given of the results of different attempts to mathematically describe the data in a manner suitable for modeling applications. Preliminary results are also presented for species-selective kinetics of methane, ethene, ethane and hydrogen, where the latter is clearly distinguished as the product of a distinct intermediate. Oil yields from Western oil shale are approximately 100% Fischer assay. Oil composition is as expected based on previous work and the higher heating rates (temperatures) inherent in fluidized-bed pyrolysis. Neither the oil yield, composition nor the kinetics varied with particle size between 0.2 and 2.0 mm within experimental error. The qualitatively expected change in oil composition due to cracking was observed over the temperature range studied …
Date:
September 1, 1982
Creator:
Richardson, J. H.; Huss, E. B.; Ott, L. L.; Clarkson, J. E.; Bishop, M. O.; Taylor, J. R. et al.
Object Type:
Report
System:
The UNT Digital Library
DOS: the discrete-ordinates system. [LMFBR]
The Discrete Ordinates System determines the flux of neutrons or photons due either to fixed sources specified by the user or to sources generated by particle interaction with the problem materials. It also determines numerous secondary results which depend upon flux. Criticality searches can be performed. Numerous input, output, and file manipulation facilities are provided. The DOS driver program reads the problem specification from an input file and calls various program modules into execution as specified by the input file.
Date:
September 1, 1982
Creator:
Rhoades, W. A. & Emmett, M. B.
Object Type:
Report
System:
The UNT Digital Library
Numerical treatment of interior boundary conditions of the Onsager equation
It has been shown that the extra condition needed to fix the stream function on an interior boundary in an incompressible liquid flow is that the integral of the pressure gradient along any path enclosing the boundary should vanish. More recently this constraint has been used to solve for a few special cases of compressible centrifuge flows. One way in which this constraint can be easily incorporated in a numerical scheme for solving the Onsager equation for the gas flow in a centrifuge is described.
Date:
September 2, 1982
Creator:
Viecelli, J
Object Type:
Report
System:
The UNT Digital Library
Seismological investigation of crack formation in hydraulic rock fracturing experiments and in natural geothermal environments. Progress report, September 1, 1981-August 31, 1982
Accomplishments during the present reporting period are: high-quality digital data obtained in the crater and the flank of Mt. St. Helens by the deployment of 9 event-recorders; discovery of striking differences in arrival times and amplitudes of seismic events between the crater station and flank stations; successful interpretation of the above observations by a powerful new method of seismogram synthesis called Gaussian Beam Method; evidence obtained at Mt. St. Helens for a close connection between the volcanic tremor and so-called long-period events; further development of our volcanic tremor model by including acoustic vibration in magma; and development of a high-temperature small-diameter borehole seismograph for use in search of a magma reservoir by listening to seismic events due to thermal stress.
Date:
September 1, 1982
Creator:
Aki, K.
Object Type:
Report
System:
The UNT Digital Library
Modeling and analysis of low heat flux natural convection sodium boiling in LMFBRs
Flow excursion induced dryout at low heat flux natural convection boiling, typical of liquid metal fast breeder reactor, is addressed. Steady state calculations indicate that low quality boiling is possible up to the point of Ledinegg instability leading to flow excursion and subsequent dryout in agreement with experimental data. A flow regime-dependent dryout heat flux relationship based upon saturated boiling criterion is also presented. Transient analysis indicates that premature flow excursion can not be ruled out and sodium boiling is highly transient dependent. Analysis of a high heat flux forced convection, loss-of-flow transient shows a significantly faster flow excursion leading to dryout in excellent agreement with parallel calculations using the two-dimensional THORAX code. 31 refs., 25 figs., 6 tabs.
Date:
September 1, 1982
Creator:
Khatib-Rahbar, M. & Cazzoli, E. G.
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0053.0577]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Highway workers inspect a load of ball bearings that spilled across three traffic lanes on the I-40 overpass above Robinson about noon today when a tractor-trailer truck overturned."
Date:
September 1, 1982
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Statistical Identification of Effective Input Variables
This report provides background and procedural information for the use of a general-purpose Stirling-engine analysis code developed at Argonne National Laboratory and available through the National Energy Software Center. Different engine configurations are easily specified, or the user may make use of provided data for existing engines, both kinematic and free piston. The code models heat transfer and fluid mechanics throughout the engine and accounts for system energy flows and losses. Good agreement is shown between code predictions and experimental measurements. The present analysis method was chosen for fast execution and useful information on energy flows in the system. A description is provided of the code structure that is intended to accept different analysis modules that can provide improved system modeling or optimization capability.
Date:
September 1982
Creator:
Vaurio, J. K.
Object Type:
Report
System:
The UNT Digital Library
Proceedings of the 1982 Symposium on Instrumentation and Control for Fossil Energy Processes : June 7-9, 1982 Adam's Mark Hotel, Houston, Texas
This sixth symposium covers process control processes and issues involved in the conversion of fossil fuels into synthetic fuels.
Date:
September 1982
Creator:
Argonne National Laboratory
Object Type:
Report
System:
The UNT Digital Library
Fuel-Motion Diagnostics and Cineradiography
Nuclear and non-nuclear applications of cineradiography are reviewed, with emphasis on diagnostic instrumentation for in-pile transient-reactor safety testing of nuclear fuel motion. The primary instrument for this purpose has been the fast-neutron hodoscope, which has achieved quantitative monitoring of time, location, mass, and velocity of fuel movement under the difficult conditions associated with transient-reactor experiments. Alternative diagnostic devices that have been developed have not matched the capabilities of the hodoscope. Other applications for the fuel-motion diagnostic apparatus are also evolving, including time-integrated radiography and direct time- and space-resolved fuel-pin power monitoring. Although only two reactors are now actively equipped with high-resolution fuel-motion diagnostic systems, studies and tests have been carried out in and for many other reactors.
Date:
September 1982
Creator:
DeVolpi, A.
Object Type:
Report
System:
The UNT Digital Library
DYNAPCON: A Computer Code for Dynamic Analysis of Prestressed Concrete Structures
A finite element computer code for the transient analysis of prestressed concrete reactor vessels (PCRVs) for LMFBR containment is described. The method assumes rotational symmetry of the structure. Time integration is by an explicit method. The quasistatic prestressing operation of the PCRV model is performed by a dynamic relaxation technique. The material model accounts for the crushing and tensile cracking in arbitrary direction in concrete and the elastic-plastic behavior of reinforcing steel. The variation of the concrete tensile cracking and compressive crushing limits with strain rate is taken into account. Relative slip is permitted between the concrete and tendons. Several example solutions are presented and compared with experimental results. These sample problems range from simply supported beams to small scale models of PCRV's. It is shown that the analytical methods correlate quite well with experimental results, although in the vicinity of the failure load the response of the models tend to be quite sensitive to input parameters.
Date:
September 1982
Creator:
Marchertas, A. H.
Object Type:
Report
System:
The UNT Digital Library
Radiological and Environmental Research Division Annual Report: Part 4, Atmospheric Physics, January-December 1981
Annual report of the Argonne National Laboratory Radiological and Environmental Research Division regarding activities related to atmospheric physics. This report discusses the section's participation in the Atmospheric Studies in COmplex Terrain (ASCOT) experiment.
Date:
September 1982
Creator:
Stehney, A. F. & Wesely, M. L.
Object Type:
Report
System:
The UNT Digital Library
The Measurement of Leaching from Simulated Nuclear-Waste Glass Using Radiotracers
The use of radiotracer spiking as a method of measuring the leaching from simulated nuclear-waste glass is shown to give results comparable with other analytical detection methods. The leaching behavior of strontium-85, ruthenium-106, barium-133, cesium-137, cerium-141, europium-152, and other isotopes is measured for several defense waste glasses. These tests show that radiotracer spiking is a sensitive, multi-element technique that can provide leaching data, for actual waste elements, that are difficult to obtain by other methods. Additionally, a detailed procedure is described that allows spiked glass to be prepared with a suitable distribution of radionuclides.
Date:
September 1982
Creator:
Bates, J. K.; Jardine, L. J. & Steindler, M. J.
Object Type:
Report
System:
The UNT Digital Library
A Study of the Uranium-Aluminum-Silicon System
The U-Al-Si system was investigated in the composition range from U to U-80 at.% Al to U-75 at.% Si. More than 260 binary and ternary alloys were arc melted and studied by metallographic and x-ray powder diffraction techniques, in the as-cast condition and after thermal treatment at temperatures ranging from 700 to 1040 C. One or possibly two ternary compounds of undetermined crystal structure exist at or near U2AlSi2 The binary silicides U3Si, U3Si2, and USi can dissolve only small amounts of Al in solid solution, but the higher silicides U3Si5, USi2-x, and USi/sub 3/ dissolve increasingly larger amounts of Al. Of the three binary aluminides, UAl2 can dissolve more than 12 at.% Si in solid solution. UAl3 forms a continuous solid solution with USi3, and UAl4 is not present in alloys containing more than 3 at.% Si.
Date:
September 1982
Creator:
Dwight, A. E.
Object Type:
Report
System:
The UNT Digital Library