Hot-gas cleanup system model development. Volume I. Final report (open access)

Hot-gas cleanup system model development. Volume I. Final report

This two-volume report summarizes the state of the art in performance modeling of advanced high-temperature, high-pressure (HTHP) gas cleanup devices. Volume I contains the culmination of the research effort carried over the past 12 months and is a summary of research achievements. Volume II is the user's manual for the computer programs developed under the present research project. In this volume, Section 2 presents background information on pressurized, fluidized-bed combustion concepts, a description of the role of the advanced gas cleanup systems, and a list of advanced gas cleanup systems that are currently in development under DOE sponsorship. Section 3 describes the methodology for the software architecture that forms the basis of the well-disciplined and structured computer programs developed under the present project. Section 4 reviews the fundamental theories that are important in analyzing the cleanup performance of HTHP gas filters. Section 5 discusses the effect of alkali agents in HTHP gas cleanup. Section 6 evaluates the advanced HTHP gas cleanup models based on their mathematical integrity, availability of supporting data, and the likelihood of commercialization. As a result of the evaluation procedure detailed in Section 6, five performance models were chosen to be incorporated into the overall system simulation …
Date: November 1, 1982
Creator: Ushimaru, K.; Bennett, A. & Bekowies, P.J.
Object Type: Report
System: The UNT Digital Library
Scaling neutron absorbed dose distributions from one medium to another (open access)

Scaling neutron absorbed dose distributions from one medium to another

Central axis depth dose (CADD) and off-axis absorbed dose ratio (OAR) measurements were made in water, muscle and whole skeletal bone TE-solutions, mineral oil and glycerin with a clinical neutron therapy beam. These measurements show that, for a given neutron beam quality and field size, there is a universal CADD distribution at infinity if the depth in the phantom is expressed in terms of appropriate scaling lengths. These are essentially the kerma-weighted neutron mean free paths in the media. The method used in ICRU No. 26 to scale the CADD by the ratio of the densities is shown to give incorrect results. the OAR's measured in different media at depths proportional to the respective mean free paths were also found to be independent of the media to a good approximation. It is recommended that relative CADD and OAR measurements be performed in water because of its universality and convenience. A table of calculated scaling lengths is given for various neutron energy spectra and for various tissues and materials of practical importance in neutron dosimetry.
Date: November 1, 1982
Creator: Awschalom, M.; Rosenberg, I. & Ten Haken, R.K.
Object Type: Report
System: The UNT Digital Library
Hot-gas cleanup system model development. Volume II. Final report (open access)

Hot-gas cleanup system model development. Volume II. Final report

Under Contract to the Department of Energy (DOE) through the Morgantown Energy Technology Center (METC), Flow Industries, Inc., has developed computer models to simulate the physical performance of five hot-gas cleanup devices for pressurized, fluidized-bed combustion (PFBC), combined-cycle power plants. Separate cost models have also been developed to estimate the cost of each device. The work leading to the development of these models is described in Volume I of this report. This volume contains the user's manuals for both the physical and cost models. The manuals for the physical models are given first followed by those for the cost models. Each manual is a complete and separate document. The model names and devices and their respective subroutine names are: (1) Moving Granular Bed Filter by Combustion Power Company, USRCGB, QFCOST; (2) Ceramic Bag Filter by Acurex, USRACB, QDCOST; (3) Electrostatic Granular Bed Filter by General Electric, USRGGB, QACOST; (4) Electrostatic Precipitator by Research Cottrell, USRCEP, QECOST; and (5) Electrocyclone by General Electric, USRGCY, QBCOST.
Date: November 1, 1982
Creator: Ushimaru, K.; Bennett, A. & Bekowies, P.J.
Object Type: Report
System: The UNT Digital Library
Technological implications of SNAP reactor power system development on future space nuclear power systems (open access)

Technological implications of SNAP reactor power system development on future space nuclear power systems

Nuclear reactor systems are one method of satisfying space mission power needs. The development of such systems must proceed on a path consistent with mission needs and schedules. This path, or technology roadmap, starts from the power system technology data base available today. Much of this data base was established during the 1960s and early 1970s, when government and industry developed space nuclear reactor systems for steady-state power and propulsion. One of the largest development programs was the Systems for Nuclear Auxiliary Power (SNAP) Program. By the early 1970s, a technology base had evolved from this program at the system, subsystem, and component levels. There are many implications of this technology base on future reactor power systems. A review of this base highlights the need for performing a power system technology and mission overview study. Such a study is currently being performed by Rockwell's Energy Systems Group for the Department of Energy and will assess power system capabilities versus mission needs, considering development, schedule, and cost implications. The end product of the study will be a technology roadmap to guide reactor power system development.
Date: November 16, 1982
Creator: Anderson, R.V.
Object Type: Report
System: The UNT Digital Library
Synthetic fuel aromaticity and staged combustion (open access)

Synthetic fuel aromaticity and staged combustion

Samples of middle and heavy SRC-II distillates were distilled into 50 C boiling point range fractions. These were characterized by measurements of their molecular weight, elemental analysis and basic nitrogen content and calculation of average molecular structures. The structures typically consisted of 1 to 3 aromatic rings fused to alicyclic rings with short, 1 to 3 carbon aliphatic side chains. The lower boiling fractions contained significant amounts (1 atom/molecule) of oxygen while the heavier fractions contained so few heteroatoms that they were essentially hydrocarbons. Laboratory scale oxidative-pyrolysis experiments were carried out at pyrolysis temperatures of 500 to 1100 C and oxygen concentrations from 0 to 100 percent of stoichiometry. Analysis of liquid products, collected in condensers cooled with liquid nitrogen showed that aromatization is a major reaction in the absence of oxygen. The oxygen-containing materials (phenolics) seem to be more resistant to thermal pyrolysis than unsubstituted aromatics. Nitrogen converts from basic to nonbasic forms at about 500 C. The nonbasic nitrogen is more stable and survives up to 700 C after which it is slowly removed. A recently constructed 50,000 Btu/hr staged combustor was used to study the chemistry of the nitrogen and aromatics. SRC II combustion was studied under …
Date: November 15, 1982
Creator: Longanbach, J. R.; Chan, L. K. & Levy, A.
Object Type: Report
System: The UNT Digital Library
Update of neutron dose yields as a function of energy for protons and deuterons incident on beryllium targets (open access)

Update of neutron dose yields as a function of energy for protons and deuterons incident on beryllium targets

Neutron absorbed dose yields (absorbed dose rates per unit incident current on targets at a given SAD or SSD) increase with incident charged particle energy for both protons and deuterons. Analyses of neutron dose yield versus incident particle energy have been performed for both deuterons and protons. It is the purpose of this report to update those analyses by pooling all of the more recent published results and to reanalyze the trend of yield, Y, versus incident energy, E, which in the past has been described by an expression of the form Y = aE/sup b/, where a and b are empirical constants. From the reanalyzed trend it is concluded that for a given size cyclotron (E/sub p/ = 2E/sub d/), the dose yields using protons are higher than those using deuterons up to a proton energy E/sub p/ of 64 MeV.
Date: November 1, 1982
Creator: Ten Haken, R.K.; Awschalom, M. & Rosenberg, I.
Object Type: Report
System: The UNT Digital Library
On the Density Oscillations of a Warm Particle Bunch (open access)

On the Density Oscillations of a Warm Particle Bunch

The density oscillations of warm particle bunches is investigated theoretically. Two different mathematical approaches are employed to derive the basic equation describing density oscillations; one is a fluid approach and the second is a more general Green1s function formulation. The motion is analyzed in first order perturbation theory where it is shown, under the assumption of no degeneracy, that there are only stable oscillations. Second order perturbation theory gives damping of the motion. The perturbation theory is examined and a criterion is exhibited for its proper use. Thus, when the resistivity is small enough (but nonzero) then the motion is stable, but when the resistivity is large then the motion is essentially unstable with a growth rate which is that of an unbunched beam. The criterion is approximately evaluated using a model for a bunched beam.
Date: November 1, 1982
Creator: Channell, P. J.; Sessler, A. M. & Wurtele, J. S.
Object Type: Article
System: The UNT Digital Library
3 mm Anisotropy Measurement: On the Quadrupole Component in theCosmic Background Radiation (open access)

3 mm Anisotropy Measurement: On the Quadrupole Component in theCosmic Background Radiation

We have mapped the large-scale anisotropy in the cosmic background radiation at 3 mm wavelength using a liquid-helium-cooled balloon-borne radiometer sensitive enough to detect the dipole in one gondola rotation (1 minute). Statistical errors on the dipole and quadrupole components are below 0.1 mK with less than 0.1 m K galactic contribution. We find a dipole consistent with previous measurements but disagree with recent quadrupole reports. The measurement is also useful in searching for spectral distortions.
Date: November 1, 1982
Creator: Lubin, Philip M.; Epstein, Gerald L. & Smoot, George F.
Object Type: Article
System: The UNT Digital Library
Solar Thermal Conversion (open access)

Solar Thermal Conversion

The thermal conversion process of solar energy is based on well-known phenomena of heat transfer (Kreith 1976). In all thermal conversion processes, solar radiation is absorbed at the surface of a receiver, which contains or is in contact with flow passages through which a working fluid passes. As the receiver heats up, heat is transferred to the working fluid which may be air, water, oil, or a molten salt. The upper temperature that can be achieved in solar thermal conversion depends on the insolation, the degree to which the sunlight is concentrated, and the measures taken to reduce heat losses from the working fluid.
Date: November 1, 1982
Creator: Kreith, F. & Meyer, R. T.
Object Type: Report
System: The UNT Digital Library
Physics of laser fusion. Volume IV. The future development of high-power solid-state laser systems (open access)

Physics of laser fusion. Volume IV. The future development of high-power solid-state laser systems

Solid state lasers, particularly neodymium glass systems, have undergone intensive development during the last decade. In this paper, we review solid state laser technology in the context of high-peak-power systems for inertial confinement fusion. Specifically addressed are five major factors: efficiency, wavelength flexibility, average power, system complexity, and cost; these factors today limit broader application of the technology. We conclude that each of these factors can be greatly improved within current fundamental physical limits. We further conclude that the systematic development of new solid state laser madia, both vitreous and crystalline, should ultimately permit the development of wavelength-flexible, very high average power systems with overall efficiencies in the range of 10 to 20%.
Date: November 1, 1982
Creator: Emmett, J. L.; Krupke, W. F. & Trenholme, J. B.
Object Type: Report
System: The UNT Digital Library
Beam-tracking studies with RINGBEARER II (open access)

Beam-tracking studies with RINGBEARER II

This report presents results from the RINGBEARER II linearized monopole/dipole particle simulation for an intense relativistic electron beam propagating in a gas near three types of channels: (1) pre-existing conductivity, (2) density, and (3) density with pre-existing conductivity. Comparisons are made with earlier analytic results for the initial conditions for the pre-existing conductivity channel.
Date: November 22, 1982
Creator: Masamitsu, J. A.; Yu, S. S. & Chambers, F. W.
Object Type: Report
System: The UNT Digital Library
Reliability-economics analysis models for photovoltaic power systems. Volume 1 (open access)

Reliability-economics analysis models for photovoltaic power systems. Volume 1

This report describes the development of modeling techniques to characterize the reliability, availability, and maintenance costs of photovoltaic power systems. The developed models can be used by designers of PV systems in making design decisions and trade-offs to minimize life-cycle energy costs.
Date: November 1, 1982
Creator: Stember, L. H.; Huss, W. R. & Bridgman, M. S.
Object Type: Report
System: The UNT Digital Library
Computer studies of multiple-quantum spin dynamics (open access)

Computer studies of multiple-quantum spin dynamics

The excitation and detection of multiple-quantum (MQ) transitions in Fourier transform NMR spectroscopy is an interesting problem in the quantum mechanical dynamics of spin systems as well as an important new technique for investigation of molecular structure. In particular, multiple-quantum spectroscopy can be used to simplify overly complex spectra or to separate the various interactions between a nucleus and its environment. The emphasis of this work is on computer simulation of spin-system evolution to better relate theory and experiment.
Date: November 1, 1982
Creator: Murdoch, J.B.
Object Type: Report
System: The UNT Digital Library
Fastbus backplane impedance (open access)

Fastbus backplane impedance

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Date: November 24, 1982
Creator: Haldeman, M.
Object Type: Report
System: The UNT Digital Library
Fast multichannel analog storage system (open access)

Fast multichannel analog storage system

A Multichannel Analog Storage System based on a commercial 32-channel parallel in/serial out (PISO) analog shift register is described. The basic unit is a single width CAMAC module containing 512 analog cells and the associated logic for data storage and subsequent readout. At sampling rates of up to 30 MHz the signals are strobed directly into the PISO. At higher rates signals are strobed into a fast presampling stage and subsequently transferred in block form into an array of PISO's. Sampling rates of 300 MHz have been achieved with the present device and 1000 MHz are possible with improved signal drivers. The system is well suited for simultaneous handling of many signal channels with moderate numbers of samples in each channel. RMS noise over full scale signal has been measured as 1:3000 (approx. = 11 bit). However, nonlinearities in the response and differences in sensitivity of the analog cells require an elaborate calibration system in order to realize 11 bit accuracy for the analog information.
Date: November 1, 1982
Creator: Freytag, D.R.
Object Type: Article
System: The UNT Digital Library
SUPERGLASS. Engineering field tests - Phase 3. Production, market planning, and product evaluation for a high-thermal-performance insulating glass design utilizing HEAT MIRROR transparent insulation. Final report (open access)

SUPERGLASS. Engineering field tests - Phase 3. Production, market planning, and product evaluation for a high-thermal-performance insulating glass design utilizing HEAT MIRROR transparent insulation. Final report

HEAT MIRROR transparent window insulation consists of a clear polyester film two mils (.002'') thick with a thin, clear low-emissivity (.15) coating deposited on one side by state-of-the-art vacuum deposition processes. This neutral-colored invisible coating reflects long-wave infrared energy (heat). When mounted by being stretched with a 1/2'' air-gap on each side of the film, the resulting unit reduces heat loss by 60% compared to dual insulating glass. Southwall Corporation produces HEAT MIRROR transparent insulation and markets it to manufacturers of sealed insulating glass (I.G.) units and window and building manufacturers who make their own I.G. These companies build and sell the SUPERGLASS sealed glazing units. Units made and installed in buildings by six customers were visited. These units were located in many geographic regions, including the Pacific Northwest, Rocky Mountains, New England, Southeast, and West Coast. As much as could be obtained of their history was recorded, as was their current condition and performance. These units had been in place from two weeks to over a year. All of the units were performing thermally very well, as measured by taking temperature profiles through them and through adjacent conventional I.G. units. Some units had minor visual defects (attributed to I.G. …
Date: November 1, 1982
Creator: Tilford, C L
Object Type: Report
System: The UNT Digital Library
Fracture detection in crystalline rock using ultrasonic reflection techniques: Volume 1 (open access)

Fracture detection in crystalline rock using ultrasonic reflection techniques: Volume 1

This research was initiated to investigate using ultrasonic seismic reflection techniques to detect fracture discontinuities in a granitic rock. Initial compressional (P) and shear (SH) wave experiments were performed on a 0.9 {times} 0.9 {times} 0.3 meter granite slab in an attempt to detect seismic energy reflected from the opposite face of the slab. It was found that processing techniques such as deconvolution and array synthesis could improve the standout of the reflection event. During the summers of 1979 and 1980 SH reflection experiments were performed at a granite quarry near Knowles, California. The purpose of this study was to use SH reflection methods to detect an in situ fracture located one to three meters behind the quarry face. These SH data were later analyzed using methods similar to those applied in the laboratory. Interpretation of the later-arriving events observed in the SH field data as reflections from a steeply-dipping fracture was inconclusive. 41 refs., 43 figs., 7 tabs.
Date: November 1, 1982
Creator: Palmer, S.P. (Lawrence Berkeley Lab., CA (USA))
Object Type: Report
System: The UNT Digital Library
Health and environmental research. Quarterly report, April 1-June 30, 1982 (open access)

Health and environmental research. Quarterly report, April 1-June 30, 1982

Progress is reported in procurement of necessary equipment and supplies for determination of the effects of particulates on organ cultures of the respiratory system. A literature reviewed identified trachea organ cultures as the organ of greatest exposure and susceptibility to induced injury and disease. Cultures of rat trachea and lung explants have been maintained for a 2 week period. (PSB)
Date: November 1, 1982
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Effects of petroleum-reservoir conditions on oil recovery by carbon dioxide injection (open access)

Effects of petroleum-reservoir conditions on oil recovery by carbon dioxide injection

Several petroleum reservoir conditions were evaluated to determine their effects on oil recovery by CO/sub 2/ injection. The conditions studied were reservoir temperature, reservoir pressure, and CO/sub 2/ slug injection size. With constant pressure, the reservoir temperature was varied from 75/sup 0/ to 130/sup 0/F, and optimum oil recovery was obtained at a temperature near the critical temperature of CO/sub 2/ (87.8/sup 0/F). When the temperature was held constant and the reservoir pressure varied from 650 to 1800 psi, it was found that miscibility pressure may be above but close to 1800 psi. The CO/sub 2/ slug injection size has been varied from 3% to over 40% PV to determine if oil recovery would increase with increase of CO/sub 2/ slug size. Graphic representation of the results show that a maximum slope is reached between 12 and 15% PV. Above 15% the slope becomes smaller. It is concluded that optimum oil recovery lies between 12 and 15% PV, and the additional oil recovered, above a 15% PV CO/sub 2/ slug, would not warrant the increased cost of the CO/sub 2/. 13 figures, 13 tables.
Date: November 1, 1982
Creator: Comberiati, J.R. & Zammerilli, A.M.
Object Type: Report
System: The UNT Digital Library
Some aspects of superconducting accelerator design (open access)

Some aspects of superconducting accelerator design

The performance of an accelerator can be characterized by the efficiency with which electrical energy, the minimumm energy needed to generate a given beam voltage. The current accelerator improvement program at SLAC aims at raising the beam voltage to 50 GV which will use 240 klystrons each capable of producing a pulse 5 ..mu..s in length at a peak power of 36 MW. The Linear Collider requires 50 MW klystrons to achieve 60 GV which will raise the concomittant power consumption to 32.3 MW. We show that with superconducting elements we can increase the rf and ac conversion efficiencies and achieve the necessary 50 GV using only 1/3 of the present power requirements, provided that we exclude CW operation. We will further demonstrate that this increase in efficiency is crucial and highly significant in the design of a proposed 1000 GV linear accelerator.
Date: November 1, 1982
Creator: Farkas, Z. D. & St. Lorant, S. J.
Object Type: Report
System: The UNT Digital Library
High-explosive-driven delay line pulse generator (open access)

High-explosive-driven delay line pulse generator

The inclusion of a delay line circuit into the design of a high-explosive-driven generator shortens the time constant of the output pulse. After a brief review of generator concepts and previously described pulse-shortening methods, a geometry is presented which incorporates delay line circuit techcniques into a coil generator. The circuit constants are adjusted to match the velocity of the generated electromagnetic wave to the detonation velocity of the high explosive. The proposed generator can be modeled by adding a variable inductance term to the telegrapher's equation. A particular solution of this equation is useful for exploring the operational parameters of the generator. The duration of the electromagnetic pulse equals the radial expansion time of the high-explosive-driven armature until it strikes the coil. Because the impedance of the generator is a constant, the current multiplication factor is limited only by nonlinear effects such as voltage breakdown, diffusion, and compression at high energies.
Date: November 15, 1982
Creator: Shearer, J.W.
Object Type: Article
System: The UNT Digital Library
Tables of co-located geothermal-resource sites and BLM Wilderness Study Areas (open access)

Tables of co-located geothermal-resource sites and BLM Wilderness Study Areas

Matched pairs of known geothermal wells and springs with BLM proposed Wilderness Study Areas (WSAs) were identified by inspection of WSA and Geothermal resource maps for the states of Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming. A total of 3952 matches, for geothermal sites within 25 miles of a WSA, were identified. Of these, only 71 (1.8%) of the geothermal sites are within one mile of a WSA, and only an additional 100 (2.5%) are within one to three miles. Approximately three-fourths of the matches are at distances greater than ten miles. Only 12 of the geothermal sites within one mile of a WSA have surface temperatures reported above 50/sup 0/C. It thus appears that the geothermal potential of WSAs overall is minimal, but that evaluation of geothermal resources should be considered in more detail for some areas prior to their designation as Wilderness.
Date: November 1, 1982
Creator: Foley, D. & Dorscher, M.
Object Type: Report
System: The UNT Digital Library
Minimally Extended Elctroweak Gauge Theories in SO(10) and E/sub 6/ (open access)

Minimally Extended Elctroweak Gauge Theories in SO(10) and E/sub 6/

The possibility of minimally extending the standard SU(2)/sub L/xU(1) electroweak theory within the context of SO(10) and E/sub 6/ grand unification by adding U(1) factors is explored. The neutrino neutral-current interactions in these schemes are arranged to coincide with the standard-model predictions. Limits on the masses of the extra Z's generated by these U(1) factors are obtained by considering other parity-violating effects. Additional Z's as light as 2.5 to 3.0 times the standard model Z/sup 0/ mass are allowed.
Date: November 1, 1982
Creator: Robinett, R. W. & Rosner, J. L.
Object Type: Article
System: The UNT Digital Library
Towards a systematic format for (seismic) equipment qualification standards (open access)

Towards a systematic format for (seismic) equipment qualification standards

As part of technical assistance to the US Nuclear Regulatory Commission (NRC, 1), a systematic format for seismic equipment qualification (EQ) was initiated. This format consists of thirty issues associated with seismic EQ. Each issue was considered as a Category of Possible Seismic EQ Requirements and Criteria. That is, seismic EQ standards might be (but presently are not formulated in terms of requirements and criteria that address each of the thirty issues. Each of the thirty issues was ranked and a minimum set identified. The current requirements in existing NRC and national standards were also evaluated against this common set of issues, and they were estimated to score 60 out of 100 overall. It is believed that the systematic format exhibited in this paper can be of assistance in obtaining a broader and more complete perspective on seismic EQ issues. This format (but especially the technique) may also be of interest in non-seismic EQ since many of the issues are common.
Date: November 9, 1982
Creator: Smith, P.D.
Object Type: Article
System: The UNT Digital Library