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Evaluation of geothermal energy in Arizona. Quarterly topical progress report, January 1, 1980-March 31, 1981 (open access)

Evaluation of geothermal energy in Arizona. Quarterly topical progress report, January 1, 1980-March 31, 1981

The tasks, objectives and completed work are discussed for the legislative and institutional program, cities program, geothermal applications utilization technology, and outreach. The work on the Maryvale Terrace development and the New Mexico Energy Institute are described. (MHR)
Date: March 31, 1981
Creator: White, D.H.; Goldstone, L.A. & Malysa, L.
System: The UNT Digital Library
Geothermal development. Semi-annual report, October 1, 1980-March 31, 1981 (open access)

Geothermal development. Semi-annual report, October 1, 1980-March 31, 1981

Three areas are reported: geothermal administration, geothermal planning, and other geothermal activities. Administration covers the status of the Imperial Valley Environmental Project transfer, update of the Geothermal Resource Center, and findings of the geothermal field inspections. Planning addresses Board of Supervisor actions, Planning Commission actions, notice of exemptions, and the master Environmental Impact Report for Salton Sea. The other activity includes the County Direct Heat Development study; the solicitation for district heating and cooling proposals; the new Geothermal Class II-1 disposal site; the DOE Region IX meeting in Tucson; and USGA designating a new KGRA, the East Brawley KGRA, the Westmoreland KGRA, and revising the southern border of the Salton Sea KGRA. (MHR)
Date: March 31, 1981
Creator: unknown
System: The UNT Digital Library
Hydrogen Diffusion Behavior in Titanium-Chromium Hydrides with Laves Structures (open access)

Hydrogen Diffusion Behavior in Titanium-Chromium Hydrides with Laves Structures

Extensive NMR measurements of the proton relaxation times have been performed on low (i.e., alpha-phase) and intermediate (i.e., alpha'-phase) hydrogen concentrations in TiCr{sub}2H{sub}x with both the hexagonal Cl4 and cubic Cl5 Laves structures. The relaxation times indicate rapid diffusion rates above 200 K for all the TiCr{sub}2H{sub}x phases; however, large differences in the diffusion activation energies are observed. This behavior is associated with the hydrogen interstitial site occupancies and diffusion pathways becoming restricted in the Cl4 structure.
Date: March 31, 1981
Creator: Bowman, R. C., Jr.; Craft, B. D.; Attalla, A. & Johnson, J. R.
System: The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Fargo NTMS Quadrangle, North Dakota and Minnesota (open access)

Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Fargo NTMS Quadrangle, North Dakota and Minnesota

This report presents field and laboratory data for 642 groundwater samples and 238 stream sediment samples collected from the Fargo quadrangle in North Dakota and Minnesota.
Date: March 31, 1981
Creator: National Uranium Resource Evaluation Program
System: The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Grand Forks NTMS Quadrangle, North Dakota and Minnesota (open access)

Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Grand Forks NTMS Quadrangle, North Dakota and Minnesota

This report presents field and laboratory data for 585 groundwater samples and 201 stream sediment samples collected from the Grand Forks quadrangle in North Dakota and Minnesota.
Date: March 31, 1981
Creator: National Uranium Resource Evaluation Program
System: The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Thief River Falls NTMS Quadrangle, Minnesota and North Dakota (open access)

Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Thief River Falls NTMS Quadrangle, Minnesota and North Dakota

"Results of a reconnaissance geochemical survey of the Thief River Falls Quadrangle, Minnesota and North Dakota, are reported. Statistical data and symbol plots for uranium and uranium-related variables are presented for 471 groundwater and 342 stream sediment samples. Also included is a discussion on geologic factors considered significant in evaluating the potential for uranium mineralization."
Date: March 31, 1981
Creator: National Uranium Resource Evaluation Program
System: The UNT Digital Library
Investigation of mechanically hard, chemically inert antireflection coatings for photovoltaic solar modules. Final technical report, April 1, 1980-March 31, 1981 (open access)

Investigation of mechanically hard, chemically inert antireflection coatings for photovoltaic solar modules. Final technical report, April 1, 1980-March 31, 1981

The overall objective of this program is to determine the optical properties of i-Carbon (diamond-like) films and determine if these films can be developed into antireflecting (AR) coatings for silicon solar cells. The i-C films have been produced on glass, silicon, and KCl by radio frequency (RF) plasma decomposition of the alkane gases. Films were also produced on silicon solar cells by low-energy ion beam techniques. These coatings did not perform as well as those made from hydrocarbon gases. Significant progress has been made in understanding the deposition parameters that affect the optical properties of the films. The optical constants n and k have been determined over a large range of process parameters and source gas. The degree of hydrogen incorporation in these films has been studied by SIMS analysis. It was found that the lower optically absorbing films contain more hydrogen. This hydrogen does not, however, manifest itself in fundamental C-H absorption bands in the infrared. Very efficient single-layer quarter-wave i-C AR coatings have been produced on single-crystal and SOC Si solar cells. An increase in cell efficiency of 40% over uncoated cells has been achieved.
Date: March 31, 1981
Creator: Moravec, T.J.
System: The UNT Digital Library
New approaches for the reduction of plasma arc drop in second-generation thermionic converters. Final report (open access)

New approaches for the reduction of plasma arc drop in second-generation thermionic converters. Final report

Investigations of ion generation and recombination mechanisms in the cesium plasma as they pertain to the advanced mode thermionic energy converter are described. The changes in plasma density and temperature within the converter have been studied under the influence of several promising auxiliary ionization candidate sources. Three novel approaches of external cesium ion generation have been investigated in some detail, namely vibrationally excited N/sub 2/ as an energy source of ionization of Cs ions in a DC discharge, microwave power as a means of resonant sustenance of the cesium plasma, and ion generation in a pulse N/sub 2/-Cs mixture. The experimental data obtained and discussed show that all three techniques - i.e. the non-LTE high-voltage pulsing, the energy transfer from vibrationally excited diatomic gases, and the external pumping with a microwave power - have considerable promise as schemes in auxiliary ion generation applicable to the advanced thermionic energy converter.
Date: March 31, 1981
Creator: Hatziprokopiou, M.E. & Shaw, D.T.
System: The UNT Digital Library
Technical analysis of advanced wastewater-treatment systems for coal-gasification plants (open access)

Technical analysis of advanced wastewater-treatment systems for coal-gasification plants

This analysis of advanced wastewater treatment systems for coal gasification plants highlights the three coal gasification demonstration plants proposed by the US Department of Energy: The Memphis Light, Gas and Water Division Industrial Fuel Gas Demonstration Plant, the Illinois Coal Gasification Group Pipeline Gas Demonstration Plant, and the CONOCO Pipeline Gas Demonstration Plant. Technical risks exist for coal gasification wastewater treatment systems, in general, and for the three DOE demonstration plants (as designed), in particular, because of key data gaps. The quantities and compositions of coal gasification wastewaters are not well known; the treatability of coal gasification wastewaters by various technologies has not been adequately studied; the dynamic interactions of sequential wastewater treatment processes and upstream wastewater sources has not been tested at demonstration scale. This report identifies key data gaps and recommends that demonstration-size and commercial-size plants be used for coal gasification wastewater treatment data base development. While certain advanced treatment technologies can benefit from additional bench-scale studies, bench-scale and pilot plant scale operations are not representative of commercial-size facility operation. It is recommended that coal gasification demonstration plants, and other commercial-size facilities that generate similar wastewaters, be used to test advanced wastewater treatment technologies during operation by using …
Date: March 31, 1981
Creator: unknown
System: The UNT Digital Library
Engineering Sheets of 12 Metre Solenoid (open access)

Engineering Sheets of 12 Metre Solenoid

The solenoid design follows closely the considerations qiven in {bar p} note 116. In particular we try to make the solenoid undivided, but with a centre tap for the cooling water. We found a variant for the centre tap, so that the two layers are now electrically in series. Due to the very long length, it seems better not to fill the clearance between return yoke and OD of the second layer with epoxy. Instead, we support and adjust the coil every 2 m with three bolts at 120 deqrees screwed in the return yoke. The latter is then supposed to be sufficiently stiff, so as to give the weaker mandrel the desired straightness. We give a positive pitch, i.e. somewhat more than the width of the copper section including insulation and tolerances. The precise pitch cannot be stated here, because the copper section will be somewhat trapezoidal. How much, depends on the winding procedure. The layers are epoxy impregnated and solidair with the mandrel. The Figures show an axial section and the construction of the central water tap. The dimensions shown are on the assumption of a free choice of the diameters of return yoke and mandrel. This may …
Date: March 30, 1981
Creator: Krienen, Frank
System: The UNT Digital Library
Laboratory/bench-scale testing and evaluation of the A. P. T. Dry-Plate Scrubber. Fourth quarterly technical progress report, December 1, 1980-February 28, 1981 (open access)

Laboratory/bench-scale testing and evaluation of the A. P. T. Dry-Plate Scrubber. Fourth quarterly technical progress report, December 1, 1980-February 28, 1981

The A.P.T. Dry Plate Scrubber (DPS) uses a shallow, dense mobile bed of solid collector granules which move across a perforated plate. The gas stream containing fine particles and vapors is moved upward through the perforations to form high velocity gas jets. The fine particles are removed by inertial deposition onto the collector granules or by direct interception. Electrostatic forces also can be used to improve the collection efficiency and increase the adhesive forces between the particles and collectors. The DPS column consists of a series of collection stages (perforated plates) with the collectors either passing sequentially over each stage or being fed separately to each stage. The stages can be designed so as to promote the collection of large particles on the lower stages and the collection of fine particles and alkali vapors on the upper stages. The DPS is especially well suited for cleaning high temperature and pressure gases such as the effluent from a pressurized fluidized bed combustion (PFBC) process. The objective of this project is to conduct a bench scale experimental evaluation of the DPS at high temperature and pressure to determine its potential for controlling particulate and alkali vapor emissions from PFBC processes.
Date: March 30, 1981
Creator: unknown
System: The UNT Digital Library
Electron-dislocation interactions at low temperatures. Progress report (open access)

Electron-dislocation interactions at low temperatures. Progress report

In the last year the following experiments have been carried out: (A) magneto-oscillations have been observed in the dislocation drag process, (B) a rotational peak has been observed; this peak is related to the rotation of a magnetic field relative to the slip plane of deforming crystal, (C) twinning of a zinc crystal was shown to be related to the velocity of the dislocations involved. This correspondence between the nucleation of dislocation twinning and dislocation velocity has not been observed before.
Date: March 29, 1981
Creator: unknown
System: The UNT Digital Library
Development of a solar desiccant dehumidifier. Phase II. Technical progress report (open access)

Development of a solar desiccant dehumidifier. Phase II. Technical progress report

The effort reported is a continuation of the development testing of the 1.5-ton solar desiccant air conditioner (SODAC) and is concerned with determination of the SODAC performance in the recirculated and ventilated mode configuration. Test data in the recirculated mode are presented. As originally conceived, the SODAC features two-speed indoor and outdoor fans to permit more efficient operation at reduced capacity. In both full-flow and half-flow cases, the experimental data are compared to computer predictions. The system and its operation are described, as are the system test facility and procedures. The system description includes the characteristics of the major components, the performance at design conditions, and the control schemes for optimum operation in various climates. (LEW)
Date: March 27, 1981
Creator: Rousseau, J.
System: The UNT Digital Library
Energy utilization: municipal waste incineration. Final report (open access)

Energy utilization: municipal waste incineration. Final report

An assessment is made of the technical and economical feasibility of converting municipal waste into useful and useable energy. The concept presented involves retrofitting an existing municipal incinerator with the systems and equipment necessary to produce process steam and electric power. The concept is economically attractive since the cost of necessary waste heat recovery equipment is usually a comparatively small percentage of the cost of the original incinerator installation. Technical data obtained from presently operating incinerators designed specifically for generating energy, documents the technical feasibility and stipulates certain design constraints. The investigation includes a cost summary; description of process and facilities; conceptual design; economic analysis; derivation of costs; itemized estimated costs; design and construction schedule; and some drawings.
Date: March 27, 1981
Creator: LaBeck, M.F.
System: The UNT Digital Library
Enterprise Zones as a Concept (open access)

Enterprise Zones as a Concept

"Enterprise zones" as a concept originated in England in the late 1970s. The idea is to free certain specified urban areas of taxes and government regulations to encourage private business investment and create new jobs. Empirical evidence to support the concept is lacking. This paper contains a discussion of the concept of enterprise zones, without reference to any legislative proposals in the United States. Analyses of legislation will appear as prime sponsors introduce new bills.
Date: March 26, 1981
Creator: Breckenridge, Charlotte
System: The UNT Digital Library
MIT LMFBR blanket research project. Quarterly progress report, October 1, 1980-December 31, 1980 (open access)

MIT LMFBR blanket research project. Quarterly progress report, October 1, 1980-December 31, 1980

Information on heterogeneous assembly evaluation is presented concerning ringed moderator description and flux trap description; cross section generation; ringed moderator results; effects of heterogeneous moderation; sodium void worth breakdown; flux trap configuration; flux trap results; the effects of stoichiometric variation in the moderator; and the effects of lattice representation. Also discussed is the engineering compatibility of heterogeneous assembly designs.
Date: March 26, 1981
Creator: Driscoll, M.J.
System: The UNT Digital Library
Texas Turkey Poults: For Week Ending March 21, 1981 (open access)

Texas Turkey Poults: For Week Ending March 21, 1981

Weekly report of the Texas Crop and Livestock Reporting Service on turkey poult numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks during two years for turkey eggs set and poults hatched.
Date: March 26, 1981
Creator: Texas Crop and Livestock Reporting Service
System: The Portal to Texas History
Design and testing of wood containers for radioactive waste (open access)

Design and testing of wood containers for radioactive waste

A wood container for shipping and storing radioactive waste was designed to eliminate the problems caused by the weight, cost, and shape of the steel containers previously used. Tests specified by federal regulations (compression, free-drop, penetration, and vibration) were conducted on two of the containers, one loaded to 2500 lb and one loaded to 5000 lb. The 5000-lb container failed the free-drop test, but the 2500-lb container easily passed the tests and therefore qualifies as a Type A container. Its simplicity of design, low weight, and ease in handling have proved to be time-saving and cost-effective.
Date: March 25, 1981
Creator: Roberts, R.S. & Barry, P.E.
System: The UNT Digital Library
Flexibility of MFTF-B for thermal-barrier modifications and axisymmetric upgrades (open access)

Flexibility of MFTF-B for thermal-barrier modifications and axisymmetric upgrades

Flexibility in MFTB-B will be achieved partly by using the margins in particle and energy control designed into the machine and partly by making modest changes based on results obtained in TMX Upgrade. This latter flexibility is permitted by the schedule for vessel construction and component fabrication. The changes we might expect were determined by an examination of the processes involved in creating a thermal barrier and by speculating on the range of outcomes from TMX Upgrade experiments.
Date: March 25, 1981
Creator: Thomassen, K.I.
System: The UNT Digital Library
MFTF-B physics requirements (open access)

MFTF-B physics requirements

The specifics of the physics requirements for the magnetic fields, diagnostics, particle and energy sources, and vacuum environment for the MFTF-B experiment are described. (MOW)
Date: March 25, 1981
Creator: Porter, G. D. & Thomassen, K. I.
System: The UNT Digital Library
Thresholds and Q values of nuclear reactions induced by neutrons, protons, deuterons, tritons, /sup 3/He ions, alpha particles, and photons. [Tables] (open access)

Thresholds and Q values of nuclear reactions induced by neutrons, protons, deuterons, tritons, /sup 3/He ions, alpha particles, and photons. [Tables]

The 1977 Wapstra and Bos nuclear mass data tables were used to derive tables for thresholds and Q values of nuclear reactions induced by neutrons, protons, deuterons, tritons, /sup 3/He ions, alpha particles, and photons. The tables are displayed on microfiche included with the report.
Date: March 25, 1981
Creator: Howerton, Robert J.
System: The UNT Digital Library
USGS and Engineering and Environmental Division joint compliance monitoring report for Sacramento, CA Municipal Utility District's SMUDGEO No. 1 Geothermal project. Appendix D to final decision (open access)

USGS and Engineering and Environmental Division joint compliance monitoring report for Sacramento, CA Municipal Utility District's SMUDGEO No. 1 Geothermal project. Appendix D to final decision

The laws, ordinances, standards, and conditions for designing, constructing, and operating the power plant and related facilities are referenced. In addition, actions, verifications, submittals, and approvals required by the USGS, BLM, and CEC are specified to assure that the facilities are designed, constructed, and operated in compliance with air and water quality, public health and safety, environmental and such other laws, ordinances, and standards specified. (MHR)
Date: March 25, 1981
Creator: unknown
System: The UNT Digital Library
Geochemical determination of biospheric CO/sub 2/ fluxes to the atmosphere. Annual progress report, June 1, 1979-August 31, 1981 (open access)

Geochemical determination of biospheric CO/sub 2/ fluxes to the atmosphere. Annual progress report, June 1, 1979-August 31, 1981

Research progress is reported - for an investigation of aspects of the carbon cycle through the use of C13/C12 and C14/C12 abundance ratios. The objective is to increase knowledge of past biospheric carbon reservoir changes that have resulted in increases or reductions of atmospheric CO/sub 2/ levels. C13 trends in trees from Kodiak Island, Alaska, and from Chile were determined. (ACR)
Date: March 24, 1981
Creator: Stuiver, M
System: The UNT Digital Library
Thermal Properties of Avery Island Salt to 573/Sup 0/K and 50-MPA Confining Pressure (open access)

Thermal Properties of Avery Island Salt to 573/Sup 0/K and 50-MPA Confining Pressure

Thermal conductivity, thermal diffusivity, and thermal linear expansion were measured on two samples of Avery Island rock salt up to simultaneous temperatures and pressures of 573/sup 0/K and 50 MPa. Thermal conductivity at room temperature measured 6.3 +- 0.6 W/mK and decreased monotonically to 3.3 +- 0.4 W/mK at 573/sup 0/K. Thermal diffusivity decreased from 3.0 +- 0.8 x 10/sup -6/ m/sup 2//s at room temperature to 1.4 +- 0.5 x 10/sup -6/ m/sup 2//s at 573/sup 0/K. Thermal linear expansivity increased from 4.8 +- 0.3 x 10/sup -5/ K/sup -1/ at room temperature to 5.6 +- 0.3 x 10/sup -5/ K/sup -1/ at 573/sup 0/K. The thermal properties showed no measurable (+-5%) dependence on confining pressure from 0 to 50 MPa for any temperature tested. The thermal conductivity values were not distinguishable (+-5%) from intrinsic (single crystal) values measured by others. Diffusivity fell about 20% below intrinsic values, and linear expansivity about 20% above intrinsic values. Thermal conductivity values for Avery Island salt measured recently by Morgan are as much as 50% lower than values measured here and were probably strongly affected by sample handling prior to measurement. The pressure independence of the thermal properties measured in our study …
Date: March 24, 1981
Creator: Durham, W. B. & Abey, A. E.
System: The UNT Digital Library