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Application of microfabrication technology to thermionic energy conversion. Progress report 4, 1 May 1980 to 31 July 1980

Description: Two applications of microfabrication technology to thermionic converters have been investigated theoretically. The first is a novel method of maintaining micron or submicron spacings over large areas (>1 cm/sup 2/), using metals of different expansion coefficients to eliminate the shear stresses on the insulating pillars separating the electrodes. The second uses low-voltage field-emission sources to create ions in a large (approx. 1 mm) interelectrode gap for space charge neutralization. The t… more
Date: September 5, 1980
Creator: Brodie, I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Low temperature, sulfur tolerant homogeneous catalysts for the water-gas shift reaction

Description: The purpose of this report is to update and reorganize our recent review on homogeneous catalysis of the water-gas shift reaction (WGSR) based on recent literature publications and patents. This updated version will serve as a means of selecting 10 candidate catalyst systems for use in developing effective, sulfur-tolerant, low temperature WGSR catalysts. This report discusses the variations possible in the basic chemistry associated with WGSR catalytic cycles, including basic, acidic, and neut… more
Date: January 20, 1986
Creator: Laine, R. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy study of railroad freight transportation. Volume 2. Industry description

Description: The United States railroad industry plays a key role in transporting materials to support our industrial economy. One of the oldest industries in the US, the railroads have developed over 150 years into their present physical and operational configuration. Energy conservation proposals to change industry facilities, equipment, or operating practices must be evaluated in terms of their cost impact. A current, comprehensive and accurate data baseline of railroad economic activity and energy consu… more
Date: August 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy study of railroad freight transportation. Volume 4. Efficiency improvements and industry future

Description: Railroad equipment and operating practices were largely developed in an era during which the price of fuel was a relatively minor part of the cost of railroad operations; however, fuel has now become a scarce and expensive resource. Although many opportunities exist for installing new equipment and operating practices that will result in fuel conservation, cost and market factors can promote or retard the rate at which changes are adopted, and only limited technology may be available for use in… more
Date: August 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy study of rail passenger transportation. Volume 1. Executive summary

Description: The results and conclusions of the study by SRI treats the following topics: physical assets and services of rail passenger systems; energy demands and intensities; roles of local institutions; the industry future; and the role of the Federal government. Data reported were collected in 1976 and 1977, and in most cases, cover calendar year 1975.
Date: August 1979
Creator: Henderson, Clark
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy study of railroad freight transportation. Volume 1. Executive summary

Description: The railroad industry plays a vital role in transporting goods, raw materials, and food necessary to the well being of the population and necessary to facilitate the operations of our industrial economy. Because of the vital part that the railroad industry plays in the economy and because of its ability to move goods with relatively small amounts of fuel, the US ERDA embarked on a study to determine the role of the Federal government in promoting conservation in the industry and in freight move… more
Date: August 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fuel conservation opportunities through changes in mode of freight transportation. Final report

Description: The study identifies opportunities for and barriers to increased use of railroads to promote fuel conservation. Transportation officials were interviewed from 9 companies in the processed food, metals, chemicals, and transportation vehicle industries. These industry personnel identified unreliable delivery times and equipment shortages as the key issues in their decision not to use the railroads. A range of actions that railroad management could take to improve transit time reliability is ident… more
Date: June 1, 1979
Creator: Corbett, R. M. & Moon, A. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Water and land availability for energy farming. Final report

Description: The physical and economic availability of land and water resources for energy farming were determined. Ten water subbasins possessing favorable land and water availabilities were ranked according to their overall potential for biomass production. The study results clearly identify the Southeast as a favorable area for biomass farming. The Northwest and North-Central United States should also be considered on the basis of their highly favorable environmental characteristics. Both high and low es… more
Date: October 1, 1979
Creator: Schooley, F.A.; Mara, S.J.; Mendel, D.A.; Meagher, P.C. & So, E.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy studies of rail passenger transportation. Volume 3. Institutions

Description: The institutional structures of most rail passenger systems have undergone major changes during the past decade because of the decline in private ownership and control and the increase in responsibilities of numerous public agencies - both long established and newly created. These shifts in ownership and control are described and some of the institution-related problems that Federal agencies may encounter in planning and executing future programs for energy conservation in rail passenger transp… more
Date: August 1, 1979
Creator: Henderson, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy study of automated guideway transit (AGT) systems

Description: Automated guideway transit systems provide passenger transportation on exclusive guideways in vehicles without operators. An energy study of 6 AGT systems was made for the Seattle-Tacoma International Airport; Tampa International Airport; Busch Gardens, Wiliamsburg, Virginia; Fairland Town Center, Dearborne, Michigan; Dallas-Fort Worth Regional Airport; and West Virginia University, Morgantown, West Virinia. Selected physical, operating, and economic characteristics of the systems; services ren… more
Date: August 1979
Creator: Henderson, Clark; Cronin, Robert H. & Ellis, Hazel T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mathematical modeling and economic analysis of membrane separation of hydrogen from gasifier synthesis gas

Description: Investigators are studying hydrogen purification by membrane technology as a means to make the coal-to-hydrogen route economically attractive. To allow prediction of membrane performance and to facilitate comparisons between membrane and other technologies (cryogenic distillation, pressure swing adsorption), they developed a mathematical model to describe the permeation process inside a membrane module. The results of this model were compared with available experimental data (separation of CO{s… more
Date: October 13, 1988
Creator: Roberts, D.L. & Gottschlich, D.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy study of rail passenger transportation. Volume 2. Description of operating systems. Final report

Description: The rail passenger systems of the US are described in terms of selected physical, operating, and economic characteristics, and relates services rendered to energy usage and costs. Rail passenger transportation exists in 4 distinct forms: intercity railroads, suburban railroads, heavy-rail transit, and light-rail transit. Each form varies in technical equipment, design of facilities, operating practices, size of systems. Specific data for the national rail passenger network and the Boston, Chica… more
Date: August 1, 1979
Creator: Henderson, C.; Ellis, H. T. & Wilhelm, J. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Determination of properties of fluids for solar-cooling applications. Literature survey

Description: A detailed literature search of the available thermodynamic data of proposed refrigerant/absorbent pairs and measurement of those data that are unmeasured or unreliable are reported. The data to be obtained for the pure fluids included: the critical temperature, pressure and volume; the vapor pressure curve; the latent heat of vaporization at the normal boiling point; the freezing point; the specific heat of the liquid and vapor; and the specific volumes of the saturated liquids and vapors. For… more
Date: February 1, 1981
Creator: Podoll, R.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A preliminary study of carbon deposition on zinc ferrite sorbents

Description: A preliminary study was conducted to determine the feasibility of cumulative carbon deposition on zinc ferrite sorbents under conditions relevant to desulfurization of hot coal gas from the KRW fluidized bed gasifier operating in the air-blown mode. Thermodynamic calculations indicated that the range of conditions under which carbon deposition and carbide formation occur can be broadened if the gas contains less than equilibrium levels of methane. These calculations also indicated that dissocia… more
Date: August 1991
Creator: Krishnan, G. N.; Wong, V. K. & Wood, B. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Application of microfabrication technology to thermionic energy conversion. Final report, 1 April 1979-31 March 1981

Description: The first-year effort emphasized study of the kind of microstructures that could improve the performance of thermionic converters. Two ideas considered to have a fair chance of success emerged from this study: (1) use of a very closely spaced diode to eliminate the space-charge limitation of electron flow from emitter to collector, cesium vapor being used to control the work function of the emitter; and (2) use of field emission electrons, injected into a relatively large diode gap from microca… more
Date: April 1, 1981
Creator: Brodie, I.; Shepherd, C. & Spindt, C.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Validation of the Cumberland Energyplex concept. Volume 3. Appendixes. Final report

Description: This volume contains brief appendixes of three types: (1) some topics, although their analyses were not directly requested in the contract work statement, are examined because they are central to determining the validity of the Energyplex concept (e.g., socioeconomic effects and anaerobic digestion of animal wastes to recovery energy). (2) Methane from Illinois coal beds is discussed as a potential energy resource; however detailed analysis has been prevented by the paucity of necessary geologi… more
Date: June 1, 1979
Creator: Barkhordar, P.M.; Crooks, G. & Martin, P.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy study of rail passenger transportation. Volume 4. Efficiency improvements and industry future. Final report

Description: Measures that offer promise of efficiency improvements or economy in energy usage in rail passenger transportation are identified and described; the future of rail passenger transportation in the US is discussed; and possible future roles of Federal agencies are discussed.
Date: August 1, 1979
Creator: Henderson, C. & Wilhelm, J.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effects of coolant volatility on simulated HCDA bubble expansions. [LMFBR]

Description: The effects of coolant volatility on the expansion dynamics and cover loading of hypothetical core disruptive accidents (HCDA) were studied by performing experiments with a transparent 1/30-scale model of a typical demonstration size loop-type liquid metal fast breeder reactor (LMFBR). In past experiments, water was used to simulate the sodium coolant in the prototype. In these experiments, Freon 113 and Freon 11 were used as coolant simulants of increasing volatility. High-pressure nitrogen ga… more
Date: September 1, 1980
Creator: Tobin, R.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Exploratory study of coal conversion chemistry. Quarterly report No. 2, August 19, 1981-November 18, 1981. [Hydroxydipnenylmethanes, triphenylmethane, diphenylether]

Description: This report describes work accomplished under two tasks: Task A, mechanisms of donor-solvent coal liquefaction, and Task B, CO/H/sub 2/O conversion systems. Under Task A, we describe additional evidence relating to the question of the mechanism of the iron oxide catalyzed cleavage of hydroxydiphenylmethanes. o-Hydroxydiphenylmethane is relatively more sensitive to catalysis by Fe/sub 3/O/sub 4/, a possible one electron oxidant, and triphenylmethane is relatively more sensitive to catalyzed clea… more
Date: January 29, 1982
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Energy study of railroad freight transportation. Volume 3. Regulation and tariff

Description: Volume 1 described the history of the railroad industry and pointed out that the number of separate companies, their monopoly power, and their trade and labor practices invited regulation by outsiders from the early days. Even though new regulations have been added over the years, few have been removed. Tariffs have been modified to fit a number of needs, not all of them economic. The effects of government regulation on the energy efficiency of railroad operations are examined. The development … more
Date: August 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Line-focus solar central power system, phase I. Subsystem experiment: receiver heat transfer

Description: Wind-tunnel tests confirmed that heat losses due to natural convection are negligible in the line-focus, solar-powered receiver. Anomalies in the forced-convection tests prevented definitive conclusions regarding the more important forced convection. Flow-visualization tests using a water table show much lower velocities inside the receiver cavity than outside, supporting the supposition that the forced-heat transfer should be less than that from a standard exposed cylinder. Furthermore, the wa… more
Date: April 1, 1980
Creator: Slemmons, A J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Railroad electrification in America's future: an assessment of prospects and impacts. Final report

Description: Such considerations as the level of traffic, the relative financial health of individual railroads, the capacity of the associated supply and engineering/construction industries, and the logical connecting points at classifying yards, as well as the national interest value of creating a continuous system, continental in scope, were used to construct a scenario for railroad electrification that closely approximates how an electrification program might be implemented. For the economic reasons cit… more
Date: January 1, 1980
Creator: White, R. K.; Yabroff, I. W.; Dickson, E. M.; Zink, R. A.; Gray, M. E. & Moon, A. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization of initiation and detonation by Lagrange gage techniques. Final report

Description: The work on reactive flow Lagrange analysis (RFLA) was concerned with Lagrange particle velocity histories that exhibit double maxima similar to those recorded in RX26 and PBX9404. Conditions for particle velocity histories to exhibit extrema were formulated in terms of envelopes formed by Lagrange pressure histories. Lagrange analysis of the flow produced by the expansion of a detonation wave at a free surface was proposed to extend the determination of the release adiabat of detonation produc… more
Date: August 1, 1983
Creator: Cowperthwaite, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Application of microfabrication technology to thermionic energy conversion. Progress report 2

Description: Two diode designs are being studied that require basically different fabrication techniques. The fabrication of electrodes was begun to test the concepts and the feasibility of these designs. This work was done with polished molybdenum electrode surfaces and vapor-deposited alumina insulator structures. Initial results were obtained in the close spacing of molybdenum electrodes with alumina insulators. Spacings were demonstrated with 1/2-inch diameter discs in the range of 3 to 5 ..mu..m, using… more
Date: March 10, 1980
Creator: Brodie, Ivor & Gates, Diane C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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