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Analysis of standards for energy-efficient motors (open access)

Analysis of standards for energy-efficient motors

This analysis does not lead to a clear conclusion regarding the effectiveness of standards for energy efficient motors if effectiveness is based on a benefit-cost ratio criteria. Two alternative assumptions were made regarding the appropriate measure of the costs to the private sector. In the first case it was assumed that private sector users have no biases and expect rates of return on investment that represent their true opportunity cost of capital. Under this assumption the benefit-cost ratio is .65, that is, for every dollar of cost incurred, the associated benefit is 65 cents. The alternative assumption is tha the private sector under values energy conservation investments. Under this assumption, the benfit-cost ratio of the standards program was 1.35. For every dollar spent, $1.35 is returned to society, because the standards force private sector users to correct their biases and therefore allocate capital more productively.
Date: March 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Self-potential modeling from primary flows (open access)

Self-potential modeling from primary flows

A new method for the calculation of self potentials (SP) based on induced current sources is presented. The induced current sources are due to divergences of the convective current which is driven, in turn, by a primary flow, either heat or fluid. Numerical modeling utilizing this method has been implemented using a two-dimensional transmission surface algorithm. When the primary flow is driven by the gradient of a potential, joint modeling of the primary flow and the resultant SP is possible with this algorithm. Examples of simple geometrical models in the presence of point sources for the primary flow are presented and discussed. Lastly, a field example of the joint modeling of temperature and SP data is illustrated with data from Red Hill Hot Spring, Utah.
Date: March 1, 1981
Creator: Sill, W.R.
Object Type: Report
System: The UNT Digital Library
Direct application of West Coast geothermal resources in a wet-corn-milling plant. Final report (open access)

Direct application of West Coast geothermal resources in a wet-corn-milling plant. Final report

The engineering and economic feasibility of using the geothermal resources in East Mesa, California, in a new corn processing plant is evaluated. Institutional barriers were also identified and evaluated. Several alternative plant designs which used geothermal energy were developed. A capital cost estimate and rate of return type of economic analysis were performed to evaluate each alternative. (MHR)
Date: March 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
High-temperature gas-cooled reactor safety-reliability program plan (open access)

High-temperature gas-cooled reactor safety-reliability program plan

The purpose of this document is to present a safety plan as part of an overall program plan for the design and development of the High Temperature Gas-Cooled Reactor (HTGR). This plan is intended to establish a logical framework for identifying the technology necessary to demonstrate that the requisite degree of public risk safety can be achieved economically. This plan provides a coherent system safety approach together with goals and success criterion as part of a unifying strategy for licensing a lead reactor plant in the near term. It is intended to provide guidance to program participants involved in producing a technology base for the HTGR that is fully responsive to safety consideration in the design, evaluation, licensing, public acceptance, and economic optimization of reactor systems.
Date: March 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Western gas sands project. Status report, July-August-September 1981 (open access)

Western gas sands project. Status report, July-August-September 1981

The progress during July, August and September 1981 on increasing gas production from low permeability gas sands of the Western United States, is summarized in this edition of the WGSP Quarterly Status Report. During the quarter, CK GeoEnergy completed the field work in the Rifle Gap area near Rifle, Colorado, as well as the Draft Phase VI report covering the prognosis about reservoir geometry in the Multi-Well site area. The improved pressure coring system project, officially terminated Sept. 30. Accomplishments included increased capabilities for the pressure core barrel, improvements in the low invasion fluid plus various laboratory core intrusion studies and improved designs for PDC drill bits. At Lawrence Livermore National Laboratory, the P/sup 2/L/sup 2/ system described last quarter was evaluated further and the decision has been made to abandon further investigation. The Los Alamos National Laboratory Ceramics Materials Group is preparing to fabricate a ceramic sample with cylindrical pores of specified diameters. The NMR data on this type sample will contribute to a better understanding of the parameters affecting NMR relaxation rates in porous media. During the quarter, modifications were made in the operating and application software of the DOE Well Test Facility, which will support additions to …
Date: March 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Building with passive solar: an application guide for the southern homeowner and builder (open access)

Building with passive solar: an application guide for the southern homeowner and builder

This instructional material was prepared for training workshops for builders and home designers. It includes: fundamental definitions and equations, climate and site studies, building components, passive systems and techniques, and design tools. (MHR)
Date: March 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Radioactive materials released from nuclear power plants. Annual report 1978 (open access)

Radioactive materials released from nuclear power plants. Annual report 1978

Releases of radioactive materials in airborne and liquid effluents from commerical light water reactors during 1978 have been compiled and reported. Data on soild waste shipments as well as selected operating information have been included. This report supplements earlier annual reports by the former Atomic Energy Commission and the Nuclear Regulatory Commission. The 1978 release data are compared with previous years releases in tabular form. Data covering specific radionuclides are summarized.
Date: March 1, 1981
Creator: Tichler, J. & Benkovitz, C.
Object Type: Report
System: The UNT Digital Library
Software/firmware design specification for 10-MWe solar-thermal central-receiver pilot plant (open access)

Software/firmware design specification for 10-MWe solar-thermal central-receiver pilot plant

The software and firmware employed for the operation of the Barstow Solar Pilot Plant are completely described. The systems allow operator control of up to 2048 heliostats, and include the capability of operator-commanded control, graphic displays, status displays, alarm generation, system redundancy, and interfaces to the Operational Control System, the Data Acquisition System, and the Beam Characterization System. The requirements are decomposed into eleven software modules for execution in the Heliostat Array Controller computer, one firmware module for execution in the Heliostat Field Controller microprocessor, and one firmware module for execution in the Heliostat Controller microprocessor. The design of the modules to satisfy requirements, the interfaces between the computers, the software system structure, and the computers in which the software and firmware will execute are detailed. The testing sequence for validation of the software/firmware is described. (LEW)
Date: March 1, 1981
Creator: Ladewig, T. D.
Object Type: Report
System: The UNT Digital Library
Guide for prioritizing power plant productivity improvement projects: modification and simplification of the DOE/MRI methodology (open access)

Guide for prioritizing power plant productivity improvement projects: modification and simplification of the DOE/MRI methodology

In recent years, the subject of public utility power plant productivity and reliability has received significant attention from both federal and state agencies and from within the utilities. One study was a FEA-sponsored program that had as its purpose the development of improved techniques for assessing cause of power plant unavailability. The results of this study have become widely known as the DOE/MRI methodology for calculating increased power plant equivalent availability resulting from instituting improvement projects. To further the development of the DOE/MRI methodology for assessing and quantifying the effect of improvement projects, the DOE initiated studies with two states to demonstrate the methodology in operating plants. These studies were focused on applying the methodology to specific power plants (fossil-fueled and nuclear) and on identifying any difficulties in using the method. In the course of these investigations, several problems were uncovered. Various recommendations were made for both eliminating the identified deficiencies in the methodology and for simplifying several of the calculations needed to evaluate proposed plant improvements. The information provided here describes four major modifications to the DOE/MRI methodology which eliminate previously uncovered deficiencies and simplify calculational methods.
Date: March 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Solar Energy Education. Home economics: student activities. Field test edition (open access)

Solar Energy Education. Home economics: student activities. Field test edition

A view of solar energy from the standpoint of home economics is taken in this book of activities. Students are provided information on solar energy resources while performing these classroom activities. Instructions for the construction of a solar food dryer and a solar cooker are provided. Topics for study include window treatments, clothing, the history of solar energy, vitamins from the sun, and how to choose the correct solar home. (BCS)
Date: March 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Airborne gamma-ray spectrometer and magnetometer survey, Roseburg Quadrangle, Oregon. Final report (open access)

Airborne gamma-ray spectrometer and magnetometer survey, Roseburg Quadrangle, Oregon. Final report

An airborne high sensitivity gamma-ray spectrometer and magnetometer survey was conducted over ten (10) areas over northern California and southwestern Oregon. These include the 2/sup 0/ x 1/sup 0/ NTMS quadrangles of Roseburg, Medford, Weed, Alturas, Redding, Susanville, Ukiah, and Chico along with the 1/sup 0/ x 2/sup 0/ areas of the Coos Bay quadrangle and the Crescent City/Eureka areas combined. This report discusses the results obtained over the Roseburg, Oregon, map area. Traverse lines were flown in an east-west direction at a line spacing of six (6) miles. Tie lines were flown north-south approximately eighteen (18) miles apart. A total of 16,880.5 line miles of geophysical data were acquired, compiled, and interpreted during the survey, of which 1596 line miles are in this quadrangle. The purpose of this study is to acquire and compile geologic and other information with which to assess the magnitude and distribution of uranium resources and to determine areas favorable for the occurrence of uranium in the United States.
Date: March 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library

[Photograph 2012.201.B0270.0140]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Hilary and Shana Humphrey, right , examine a rather handy soft sculpture at Fiberworks '81, an exhibition on display this month at Omniplex."
Date: March 1, 1981
Creator: Lynn, Renee
Object Type: Photograph
System: The Gateway to Oklahoma History
Multiple Correlations and High Tranverse Momentum Jets in 147-GeV/c pi- p Interactions (open access)

Multiple Correlations and High Tranverse Momentum Jets in 147-GeV/c pi- p Interactions

We examine multiparticle correlations in a {pi}{sup -}p experiment at 147 GeV/c performed by the Proportional Hybrid System Consortium. The major aim of this paper is to demonstrate the existence of clusters in our data. We use different statistical algorithms to assemble into clusters the particles in each event which are associated by virtue of small relative angles. We find that these clusters are stable against different choices of metric and/or algorithm, and reproduce the effects previously observed in the data corresponding to clusters. Some of these clusters have properties similar to high p{sub T} jets. A detailed study of these jet-like clusters is described, and comparisons with some counter experiments are discussed.
Date: March 1, 1981
Creator: Brick, D.; Shapiro, A. M.; Widgoff, M.; Alyea Jr., E. D.; Hafen, Elizabeth S.; Hulsizer, R. I. et al.
Object Type: Article
System: The UNT Digital Library
Comparison of 50-year and 70-year internal-dose-conversion factors (open access)

Comparison of 50-year and 70-year internal-dose-conversion factors

The 50-year inhalation and ingestion dose commitments associated with an acute intake (of a radionuclide) of 3.7 x 10/sup 4/ Bq (1 ..mu..Ci) in one day were compared with the corresponding dose commitments calculated for a 70-year integration period resulting from a chronic intake of the same amount at a rate of 101 Bq/d (0.00274 ..mu..Ci/d) for one year. These values, known as dose conversion factors, estimate the dose accumulated during a given period of time following a unit of intake of a radionuclide. It was demonstrated that the acute intake of 3.7 x 10/sup 4/ Bq in one day and the chronic intake of 101 Bq/d for one year (a total intake of 3.7 x 10/sup 4/ Bq) result in essentially the same dose commitment for a relatively long integration period. Therefore, the comparison of 50-year acute dose conversion factors and 70-year chronic dose conversion factors is essentially only a measure of the additional dose accumulated in the 50 to 70 year period. It was found that for radionuclides with atomic mass less than 200 the percent difference in the 70-year and 50-year dose conversion factors was essentially zero in most cases. Differences of approximately 5 to 50% were …
Date: March 1, 1981
Creator: Ryan, M. T. & Dunning, D. E., Jr.
Object Type: Report
System: The UNT Digital Library
Operating experience with a new accelerator control system based upon microprocessors (open access)

Operating experience with a new accelerator control system based upon microprocessors

This paper describes the design and operating experience with a high performance control system tailored to the requirements of the SuperHILAC accelerator. A large number (20) of the latest 16-bit microcomputer boards are used in a parallel-distributed manner to get a high system bandwidth. Because of the high bandwidth, software costs and complexity are significantly reduced. The system by its very nature and design is easily upgraded and repaired. Dynamically assigned and labeled knobs, together with touch-panels, allow a flexible and efficient operator interface. An X-Y vector graphics system provides for display and labeling of real-time signals as well as general plotting functions. This control system allows attachment of a powerful auxiliary computer for scientific processing with access to accelerator parameters.
Date: March 1, 1981
Creator: Magyary, S.; Lancaster, H.; Selph, F.; Fahmie, M.; Timossi, C.; Glatz, J. et al.
Object Type: Article
System: The UNT Digital Library
Nuclear waste management. Quarterly progress report, October through December 1980 (open access)

Nuclear waste management. Quarterly progress report, October through December 1980

Progress reports and summaries are presented under the following headings: high-level waste process development; alternative waste forms; nuclear waste materials characterization center; TRU waste immobilization; TRU waste decontamination; krypton solidification; thermal outgassing; iodine-129 fixation; monitoring and physical characterization of unsaturated zone transport; well-logging instrumentation development; mobility of organic complexes of radionuclides in soils; waste management system studies; waste management safety studies; assessment of effectiveness of geologic isolation systems; waste/rock interactions technology; high level waste form preparation; development of backfill material; development of structural engineered barriers; ONWI disposal charge analysis; spent fuel and fuel component integrity program; analysis of spent fuel policy implementation; analysis of postulated criticality events in a storage array of spent LWR fuel; asphalt emulsion sealing of uranium tailings; liner evaluation for uranium mill tailings; multilayer barriers for sealing of uranium tailings; application of long-term chemical biobarriers for uranium tailings; revegetation of inactive uranium tailing sites; verification instrument development.
Date: March 1, 1981
Creator: Chikalla, T. D. & Powell, J. A. (comps.)
Object Type: Report
System: The UNT Digital Library
Review of simulation techniques for aquifer thermal energy storage (ATES) (open access)

Review of simulation techniques for aquifer thermal energy storage (ATES)

The storage of thermal energy in aquifers has recently received considerable attention as a means to conserve and more efficiently use energy supplies. The analysis of aquifer thermal energy storage (ATES) systems will rely on the results from mathematical and geochemical models. Therefore, the state-of-the-art models relevant to ATES was reviewed and evaluated. These models describe important processes active in ATES including ground-water flow, heat transport (heat flow), solute transport (movement of contaminants), and geochemical reactions. In general, available models of the saturated ground-water environment are adequate to address most concerns associated with ATES; that is, design, operation, and environmental assessment. In those cases where models are not adequate, development should be preceded by efforts to identify significant physical phenomena and relate model parameters to measurable quantities. Model development can then proceed with the expectation of an adequate data base existing for the model's eventual use. Review of model applications to ATES shows that the major emphasis has been on generic sensitivity analysis and site characterization. Assuming that models are applied appropriately, the primary limitation on model calculations is the data base used to construct the model. Numerical transport models are limited by the uncertainty of subsurface data and the …
Date: March 1, 1981
Creator: Mercer, J.W.; Faust, C.R.; Miller, W.J. & Pearson, F.J. Jr.
Object Type: Report
System: The UNT Digital Library
Therapy for incorporated radionuclides: scope and need (open access)

Therapy for incorporated radionuclides: scope and need

In the United States the recent termination of funding for research on therapy for incorporated radionuclides has virtually halted progress on improved or new agents and procedures for removing radioactivity from the body. Research was eliminated, but is still needed on new removal agents, improved delivery system, in vitro test systems, and the toxicology of treatments. For many radionuclides, no adequate therapy exists. The relationship between radionuclide removal and reduction in cancer risk is still unanswered. Without proper research support, needed improvements in the treatment for incorporated radionuclides in the US are uncertain.
Date: March 1, 1981
Creator: Smith, V. H.
Object Type: Article
System: The UNT Digital Library
Feasibility study report for the Imperial Valley Ethanol Refinery: a 14. 9-million-gallon-per-year ethanol synfuel refinery utilizing geothermal energy (open access)

Feasibility study report for the Imperial Valley Ethanol Refinery: a 14. 9-million-gallon-per-year ethanol synfuel refinery utilizing geothermal energy

The construction and operation of a 14,980,000 gallon per year fuel ethanol from grain refinery in the Imperial Valley of California is proposed. The Imperial Valley Ethanol Refinery (refinery) will use hot geothermal fluid from geothermal resources at the East Mesa area as the source of process energy. In order to evaluate the economic viability of the proposed Project, exhaustive engineering, cost analysis, and financial studies have been undertaken. This report presents the results of feasibility studies undertaken in geothermal resource, engineering, marketing financing, management, environment, and permits and approvals. The conclusion of these studies is that the Project is economically viable. US Alcohol Fuels is proceeding with its plans to construct and operate the Refinery.
Date: March 1, 1981
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Oxide effects on photoemission from high current GaAs photocathodes (open access)

Oxide effects on photoemission from high current GaAs photocathodes

During four years of on line operation of the SLAC polarized electron gun (PEGGY) and polarized LEED (PLEED) system, we have observed and characterized the failure modes of the GaAs (100) photocathodes (PC's) used in these systems. Several modes are observed. Gradual decreases in electron polarization and intensity are attributed to the physisorption of CO/sub 2/ on the PC's during running at LN/sub 2/ temperatures. Such PC's can be rejuvenated by warming to 90K, i.e., above the CO/sub 2/ desorption temperature. These PC's recover 90% of their original intensity. A second well-characterized failure mode results from overheating the PC during in-situ heat cleaning prior to activation. In this mode, As is preferentially evaporated from the GaAs, leaving a Ga/sub 2/O/sub 3/ layer on the surface. This effect has been studied by AES sputter profiling which indicates that the substantial thickness of the oxide layer blocks photoemission. These PC's may only be recovered by chemically removing the oxide layer. A third mode which is not as well characterized appears for thin Ga oxide layers. Properties of these PC's include reduced emission and the presence of a cutoff bias level. Such PC's are also not recoverable in-situ.
Date: March 1, 1981
Creator: Garwin, E. L.; Kirby, R. E.; Sinclair, C. K. & Roder, A.
Object Type: Article
System: The UNT Digital Library
Validation of predictive models for geologic disposal of radioactive waste via natural analogs (open access)

Validation of predictive models for geologic disposal of radioactive waste via natural analogs

The incorporation of toxic or hazardous material in the earth's crust is a phenomenon not unique to radioactive waste burial. Useful insights on the environmental transport and effects of underground toxic or radioactive material can be derived from comparative analysis against natural (mineral) analogs. This paper includes a discussion of the background and rationale for the analog approach, a descripton of several variations of the approach, and some sample applications to illustrate the concept, focusing on Radium-226 and Iodine-129 as specific case studies.
Date: March 1, 1981
Creator: Cohen, J.J. & Smith, C.F.
Object Type: Article
System: The UNT Digital Library

[Thomas Jones Mill Site]

Photograph of the Thomas Jones Mill Site in Salado, Texas.
Date: March 1, 1981
Creator: Texas Historical Commission
Object Type: Photograph
System: The Portal to Texas History

[La Villita]

Photograph of the La Villita in San Antonio, Texas.
Date: March 1, 1981
Creator: Texas Historical Commission
Object Type: Photograph
System: The Portal to Texas History

[Thomas Jones Mill Site]

Photograph of the Thomas Jones Mill Site in Salado, Texas.
Date: March 1, 1981
Creator: Texas Historical Commission
Object Type: Photograph
System: The Portal to Texas History