UNT Libraries Government Documents Department - 209 Matching Results

Search Results

Results: 1 - 24 next
open access

Solar photovoltaic/thermal residential systems

Description: The results of a conceptual design study using computer simulations to determine the physical and economic performance of combined photovoltaic/thermal collector heat-pump solar systems for a single-family residence are presented. Economic analyses are based upon projected costs for a 1986 system installation. The results show that PV/T collector systems can be economically competitive for a cold climate residence, that systems employing on-site electrical storage batteries are not economically… more
Date: December 28, 1979
Creator: Russell, M.C.
open access

Unique rod lens/video system designed to observe flow conditions in emergency core coolant loops of pressurized water reactors

Description: Techniques and equipment are described which are used for video recordings of the single- and two-phase fluid flow tests conducted with the PKL Spool Piece Measurement System designed by Lawrence Livermore Laboratory and EG and G Inc. The instrumented spool piece provides valuable information on what would happen in pressurized water reactor emergency coolant loops should an accident or rupture result in loss of fluid. The complete closed-circuit television video system, including rod lens, lig… more
Date: December 28, 1979
Creator: Carter, G. W.
open access

Assessment of the injectability of conditioned brine produced by a reaction clarification: gravity filtration system in operation at the Salton Sea geothermal field, Southern California

Description: A Demonstration Reaction Clarifier - Gravity Filtration System with a 1600 GPM throughput capability was in operation at the joint DOE-SDG and E-MAGMA test facility located in the Salton Sea Geothermal Field, southern California, during the summer of 1979. The system, which was designed to condition spent effluent from a 10 MWe-size geothermal power plant, removes supersaturated dissolved species and residual suspended solids from brine prior to subsurface brine disposal via injection wells. Th… more
Date: November 28, 1979
Creator: Owen, L.B.; Raber, E.; Otto, C.; Netherton, R.; Neurath, R. & Allen, L.
open access

Aerial radiometric and magnetic survey: Socorro National Topographic Map, New Mexico

Description: The results of analyses of the airborne gamma radiation and total magnetic field survey flown for the region identified as the Socorro National Topographic Map NI13-4 is presented in this report. The airborne data gathered are reduced by ground computer facilities to yield profile plots of the basic uranium, thorium and potassium equivalent gamma radiation intensities, ratios of these intensities, aircraft altitude above the earth's surface, total gamma ray and earth's magnetic field intensity,… more
Date: September 28, 1979
open access

Capital requirements for the transportation of energy materials: 1979 ARC estimates. Final report

Description: TERA's estimates of capital requirements to transport natural gas, crude oil, petroleum products, and coal in the US by 1990 are presented. It is a continuation of a 1978 study (EAPA 5:3946) to perform a similar analysis on 1979 scenarios. Scenarios B, C, and D from the EIA's Mid-range Energy Forecasting Systems, as used in the 1979 Annual Report to Congress (ARC), were provided as a basis for the analysis and represent three alternative futures. Summaries of transportation investment requireme… more
Date: September 28, 1979
open access

Cost/risk/benefit analysis report on the decontamination and decommissioning of Z-plant

Description: This study was performed to estimate the cost of decontaminating and decommissioning Z-Plant. All of the buildings in the Z-Plant exclusion area except Building 2736-Z, the plutonium storage vault, are included in the study. The study also excludes all underground facilities within the exclusion area which are not contained within a building and all Z-Plant related facilities outside the perimeter fence. The contamination in Z-Plant is primarily /sup 239/Pu which has a half-life of 24,360 years… more
Date: September 28, 1979
Creator: Melvin, J. P.; Sexton, R. A.; Fort, M. L. & Nunn, S. E.
open access

Enforcement/certification program for appliance efficiency standards. Task II, report

Description: The research and analysis program at Vitro Labs. in support of the appliance certification and enforcement program provides Vitro's recommended approach to appliance certification and enforcement (C/E). The approach established the C/E program framework, general criteria, and procedures for assuring a specified level of energy-efficiency performance for 13 categories of consumer products (furnaces, humidifiers, dehumidifiers, dishwashers, television, clothes washers, freezers, air conditioners,… more
Date: September 28, 1979
open access

MEQATRON: a high-power high-frequency rf source

Description: MEQATRON is an acronym for a multiple-beam electrostatic-quadrupole-focused array of electron beams. Conventional electron beam devices consist principally of single electron beams. In this paper the single-beam space-charge limitations are discussed, and a relationship for power flux (W/m/sup 2/) is obtained. Several features of the multiple-beam approach become clear at once. Because the multiple-beam approach removes the current limitation on performance, it is possible to design high-curren… more
Date: September 28, 1979
Creator: Maschke, A W
open access

Near-surface moisture and biomass influences on the reliability of aerial radiometric surveys as a measure of natural radioelement concentrations

Description: Significant differences in aerial radiometric system calibration constants in humid-forested (Portland quadrangle) and desert (Lake Mead test strip) regions indicated the probability of substantial gamma-ray absorption by soil moisture in humid areas. A set of test quadrangles was selected to investigate relationships among a group of environmental variables and ratios of whole-quadrangle mean (X) stream sediment uranium (U) and thorium (Th) contents to corresponding mean aerial radiometric ura… more
Date: September 28, 1979
Creator: Norwine, J. R.; Hansen, D. J.; Saunders, D. F. & Galbraith, J. H.
open access

Underwater explosions and cavitation phenomena

Description: Some aspects of underwater explosions and cavitation phenomena have been studied by using a thermodynamic equation of state for water and a one-dimensional Lagrangian hydrocode. The study showed that surface cavitation is caused by the main blast wave and a bubble pulse from rebound of a release wave moving toward the center of the exploding bubble. Gravity has little effect on the surface cavitation. In nuclear explosions the bubble is bounded by a two-phase region rather than a gas-water inte… more
Date: August 28, 1979
Creator: Kamegai, M.
open access

Polyacetylene, (CH)/sub x/, as an emerging material for solar cell applications. Technical progress report, April-June, 1979

Description: The potential of (CH)/sub x/ as a photosensitive material for use in solar cell applications is studied. Schottky barrier photovoltaic cells were fabricated with metallic AsF/sub 5/-doped (CH)/sub x/ on semiconducting n-Si and n-GaAs, with metallic Na-doped (CH)/sub x/ on semiconducting p-Si, with K-doped (CH)/sub x/ as an n-type semiconductor in contact with an electronegative metal (Au), and with undoped trans-(CH)/sub x/ as a p-type semiconductor in contact with electropositive metals (Na, H… more
Date: July 28, 1979
Creator: Heeger, A.J. & MacDiarmid, A.G.
open access

Economic evaluation of the MIT process for manufacture of ethanol

Description: This report summarizes the results of an economic evaluation of the MIT process for the manufacture of ethanol from cellulosic residues. Conceptual process designs were developed for two cases, Case A which is based on the experimental data obtained to date, and Case B which hypothesizes the suppression of acid byproducts. Manufacturing costs, including profit, were estimated at $12.20/million Btu for Case A and $9.40/million Btu for Case B. These are equivalent to about $1.05 and $0.80/gal eth… more
Date: June 28, 1979
Creator: Jenkins, D. M. & Reddy, T. S.
open access

Conversion of cellulosic and waste polymer material to gasoline

Description: The present status and future plans for a project to convert cellulosic (biomass) and waste synthetic polymer materials to quality liquid fuels is presented. A thermal gasification approach is utilized followed by catalytic liquid fuels synthesis steps. Potential products include a medium quality substitute for natural gas or liquid fuel equivalents of diesel fuel, kerosene or high octane gasoline. The process appears very flexible with regard to ability to handle different sources of feedstock… more
Date: March 28, 1979
Creator: Kuester, James L.
open access

The ANIMAL Code

Description: This report describes ANIMAL, a two-dimensional Eulerian magnetohydrodynamic computer code. ANIMAL's physical model also appears. Formulated are temporal and spatial finite-difference equations in a manner that facilitates implementation of the algorithm. Outlined are the functions of the algorithm's FORTRAN subroutines and variables.
Date: February 28, 1979
Creator: Lindemuth, I. R.
open access

Combined thermal storage pond and dry cooling tower waste heat rejection system for solar-thermal steam-electric power plants. Final report

Description: The thermal performance and economics of the combined thermal storage pond and dry cooling tower waste heat rejection system concept for solar-thermal steam-electric plants have been evaluated. Based on the computer simulation of the operation of southwest-sited solar-thermal plants, it has been determined that the combined pond-tower concept has significant cost and performance advantages over conventional dry cooling systems. Use of a thermal storage pond as a component of the dry cooling sys… more
Date: February 28, 1979
Creator: Guyer, E.C.; Bourne, J.G.; Brownell, D.L. & Rose, R.M.
open access

Corrosion, Stress Corrosion Cracking, and Electrochemistry of the Iron and Nickel Base Alloys in Caustic Environments. Progress Report, March 1, 1978--February 28, 1979

Description: Stress corrosion cracking susceptibility of 2-1/4Cr--1Mo steel has been studied in the pH range 0.5 to 13 in one molar sulfate solutions containing Na/sub 2/S additions, by the slow strain rate (10/sup -6/S/sup -1/) technique. Brittle fracture was observed over the entire pH range but only at cathodic potentials which were below the hydrogen evolution region. Crack propagation rates (CPRs) in Nickel-200 have been measured as a function of potential in 17.5N NaOH solution at 138/sup 0/C, using t… more
Date: February 28, 1979
Creator: Staehle, R. W. & Agrawal, A. K.
open access

Development and testing of shingle-type solar cell modules. Final report

Description: The design, development, fabrication and testing of a shingle-type terrestrial solar cell module which produces 98 watts/m/sup 2/ of exposed module area at 1 kW/m/sup 2/ insolation and 61/sup 0/C are reported. These modules make it possible to easily incorporate photovoltaic power generation into the sloping roofs of residential or commercial buildings by simply nailing the modules to the plywood roof sheathing. This design consists of nineteen series-connected 53 mm diameter solar cells arrang… more
Date: February 28, 1979
Creator: Shepard, N.F.
open access

Development of superior liquid coolants CCF-1. Semiannual technical progress report for September 1, 1978-February 28, 1979

Description: This semiannual report summarizes the results of physical property testing, FHSA toxicity testing and Biological Oxygen Demand (BOD) testing on five solar heat transfer fluids. The status of solar collector stagnation testing at New Mexico State University on four solar heat transfer fluids is reviewed. Cost effectiveness will be evaluated from the results of these and other tests yet to be undertaken, including stagnation performance in solar collectors. This economic evaluation will be presen… more
Date: February 28, 1979
Creator: Hodges, R M & Marinik, J A
Back to Top of Screen