UNT Libraries Government Documents Department - 68 Matching Results

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3D field harmonics

Description: We have developed an harmonic representation for the three dimensional field components within the windings of accelerator magnets. The form by which the field is presented is suitable for interfacing with other codes that make use of the 3D field components (particle tracking and stability). The field components can be calculated with high precision and reduced cup time at any location (r,{theta},z) inside the magnet bore. The same conductor geometry which is used to simulate line currents is … more
Date: March 30, 1991
Creator: Caspi, S.; Helm, M. & Laslett, L.J.
Item Type: Refine your search to only Report
open access

Annual work plan for FY 1992

Description: The Office of Inspector General (OIG) has an overall mission to prevent and detect fraud, waste, and mismanagement in Department of Energy (DOE) programs. As part of its responsibility in accomplishing its mission, the DOE Office of Audits publishes an Annual Work Plan'' in September of each year. The prime focus of the plan is to identify opportunities for audits to enhance the effectiveness, efficiency, and integrity of the DOE's programs and operations. Through this plan, we are able to maxi… more
Date: September 30, 1991
Item Type: Refine your search to only Report
open access

Application of nuclear particle tracks: A scanning x-ray microscope

Description: The scanning x-ray microscope (SXM) is a short-wavelength analog of a near-field optical-scanning microscope, promising spatial resolution of {approximately}100{angstrom} up to {approximately}5 keV x-ray energy. A portion of a synchrotron x-ray beam streams through an etched nuclear particle track in an opaque membrane and impinges on an object within the narrow stream. Scattered or transmitted x-rays are detected with a photon counter. The SXM is feasible because a useful number of synchrotron… more
Date: September 30, 1991
Creator: Ebert, P.J.
Item Type: Refine your search to only Article
open access

Applications of Micellar Enzymology to Clean Coal Technology

Description: This project is designed to develop methods for pre-combustion coal remediation by implementing recent advances in enzyme biochemistry. The novel approach of this study is incorporation of hydrophilic oxidative enzymes in reverse micelles in an organic solvent. Enzymes from commercial sources or microbial extracts are being investigated for their capacity to remove organic sulfur from coal by oxidation of the sulfur groups, splitting of C-S bonds and loss of sulfur as sulfuric acid. Dibenzothio… more
Date: January 30, 1991
Creator: Walsh, C. T.
Item Type: Refine your search to only Report
open access

Applications of Micellar Enzymology to Clean Coal Technology. Ninth Quarterly Report

Description: This project is designed to develop methods for pre-combustion coal remediation by implementing recent advances in enzyme biochemistry. The novel approach of this study is incorporation of hydrophilic oxidative enzymes in reverse micelles in an organic solvent. Enzymes from commercial sources or microbial extracts are being investigated for their capacity to remove organic sulfur from coal by oxidation of the sulfur groups, splitting of C-S bonds and loss of sulfur as sulfuric acid. Dibenzothio… more
Date: January 30, 1991
Creator: Walsh, Carol T.
Item Type: Refine your search to only Report
open access

Basic fluid system trainer

Description: This invention, a trainer mounted and housed within a mobile console, is used to teach and reinforce fluid principles to students. The system trainer has two centrifugal pumps, each driven by a corresponding two-speed electric motor. The motors are controlled by motor controllers for operating the pumps to circulate the fluid stored within a supply tank through a closed system. The pumps may be connected in series or in parallel. A number of valves are also included within the system to effect … more
Date: April 30, 1991
Creator: Semans, J. P.; Johnson, P. G.; LeBoeuf, R. F. Jr.; Kromka, J. A.; Goron, R. H. & Hay, G. D.
Item Type: Refine your search to only Patent
open access

Coal surface control for advanced fine coal flotation

Description: The primary objective in the scope of this research project is to develop advanced flotation methods for coal cleaning in order to achieve near total pyritic-sulfur removal at 90% Btu recovery, using coal samples procured from three major US coal seams. Concomitantly, the ash content of these coals is to be reduced to 6% or less. Investigation of mechanisms for the control of coal and pyrite surfaces prior to fine coal flotation is the main aspect of the project objectives. The results of this … more
Date: July 30, 1991
Creator: Fuerstenau, D. W.; Sastry, K. V. S.; Hanson, J. S.; Diao, J.; De, A.; Sotillo, F. et al.
Item Type: Refine your search to only Report
open access

Committee on Interagency Radiation Research and Policy Coordination (CIRRPC). Seventh annual report

Description: In 1990--91 CIRRPC`s program included efforts to improve interagency coordination on ionizing radiation risk assessments, a review of the reported health risks to humans from exposure to extremely low- frequency electric and magnetic fields (ELF/EMF), and increased coordination with national and international organizations such as NCRP and ICRP.
Date: June 30, 1991
Creator: Young, A.L.
Item Type: Refine your search to only Report
open access

Compact Fusion Advanced Rankine (CFARII) power cycle---Operating regimes

Description: Performance (cost/kWe and efficiency) of generic Compact Fusion Advanced Rankine (CFARII) power conversion is investigated for various working fluids, operating temperatures and pressures, and thermal power levels. A general conclusion is that good CFARII performance is found for a remarkably broad range of materials, temperatures, pressures and power levels, which gives considerable flexibility to future design studies which may apply CFARII energy conversion to specific fusion energy sources … more
Date: September 30, 1991
Creator: Logan, B. G.
Item Type: Refine your search to only Article
open access

D0 Cryogenic System Operator Training

Description: D0 is a collider detector. It will be operating and doing physics at the same time as CDP, therefore it has been decided to train CDP operators to operate and respond to the D0 cryogenic control system. A cryogenic operator will be required to be in residence at D0, during the cooldown and liquid Argon fill of any of the calorimeters. The cryogenic system at D0 is designed to be unmanned during steady state operation. CDP operations has 2 man cryogenic shifts 24 hours a day. It is intended that… more
Date: November 30, 1991
Creator: Markley, D.
Item Type: Refine your search to only Report
open access

The demonstration of an advanced cyclone coal combustor, with internal sulfur, nitrogen, and ash control for the conversion of a 23 MMBTU/hour oil fired boiler to pulverized coal

Description: This work contains to the final report of the demonstration of an advanced cyclone coal combustor. Titles include: Chronological Description of the Clean Coal Project Tests,'' Statistical Analysis of Operating Data for the Coal Tech Combustor,'' Photographic History of the Project,'' Results of Slag Analysis by PA DER Module 1 Procedure,'' Properties of the Coals Limestone Used in the Test Effort,'' Results of the Solid Waste Sampling Performed on the Coal Tech Combustor by an Independent Contr… more
Date: August 30, 1991
Creator: Zauderer, B. & Fleming, E. S.
Item Type: Refine your search to only Report
open access

The demonstration of an advanced cyclone coal combustor, with internal sulfur, nitrogen, and ash control for the conversion of a 23 MMBtu/hour oil fired boiler to pulverized coal

Description: The project objective was to demonstrate a technology which can be used to retrofit oil/gas designed boilers, and conventional pulverized coal fired boilers to direct coal firing, by using a patented sir cooled coal combustor that is attached in place of oil/gas/coal burners. A significant part of the test effort was devoted to resolving operational issues related to uniform coal feeding, efficient combustion under very fuel rich conditions, maintenance of continuous slag flow and removal from … more
Date: August 30, 1991
Creator: Zauderer, B. & Fleming, E. S.
Item Type: Refine your search to only Report
open access

Design, synthesis, and characterization of novel fine-particle, unsupported catalysts for coal liquefaction

Description: The purpose of this work is to investigate the kinetics-assisted design, synthesis and characterization of fme-pardcle, unsupported catalysts for coal liquefaction. The goal is to develop a fundamental understanding of coal catalysis and catalysts that will, in turn, allow for the specification of a novel optimal catalyst for coal liquefaction.
Date: December 30, 1991
Creator: Klein, M.T.
Item Type: Refine your search to only Report
open access

Design, synthesis, and characterization of novel fine-particle, unsupported catalysts for coal liquefaction. Technical progress report, October 25, 1990--October 24, 1991: Draft

Description: The purpose of this work is to investigate the kinetics-assisted design, synthesis and characterization of fme-pardcle, unsupported catalysts for coal liquefaction. The goal is to develop a fundamental understanding of coal catalysis and catalysts that will, in turn, allow for the specification of a novel optimal catalyst for coal liquefaction.
Date: December 30, 1991
Creator: Klein, M. T.
Item Type: Refine your search to only Report
open access

Development of a coal quality expert

Description: This project will enhance the existing Coal Quality Information System (CQIS) database and Coal Quality Impact Model (CQIM) to allow confident assessment of the effects of cleaning on specific boiler cost and performance, as well as develop and validate a methodology, Coal Quality Expert (CQE) which allows accurate and detailed predictions of coal quality impacts on total power plant capital cost, operating cost, and performance based upon inputs from inexpensive bench-scale tests. The project … more
Date: August 30, 1991
Item Type: Refine your search to only Report
open access

Development of advanced low-temperature heat transfer fluids for district heating and cooling

Description: The feasibility of adding phase change materials (PCMs) and surfactants to the heat transfer fluids in district cooling systems was investigated. It increases the thermal capacity of the heat transfer fluid and therefore decreases the volume that needs to be pumped. It also increases the heat transfer rate, resulting in smaller heat exchangers. The thermal behavior of two potential PCMs, hexadecane and tetradecane paraffin wax, was experimentally evaluated. The heat of fusion of these materials… more
Date: September 30, 1991
Item Type: Refine your search to only Report
open access

Development of advanced low-temperature heat transfer fluids for district heating and cooling. Final report, September 25, 1990--September 24, 1991

Description: The feasibility of adding phase change materials (PCMs) and surfactants to the heat transfer fluids in district cooling systems was investigated. It increases the thermal capacity of the heat transfer fluid and therefore decreases the volume that needs to be pumped. It also increases the heat transfer rate, resulting in smaller heat exchangers. The thermal behavior of two potential PCMs, hexadecane and tetradecane paraffin wax, was experimentally evaluated. The heat of fusion of these materials… more
Date: September 30, 1991
Item Type: Refine your search to only Report
open access

(Development of high spectral resolution lidar technology)

Description: The first year of this grant has been devoted to the design and construction of an upgraded version of the University of Wisconsin High Spectral Resolution Lidar (HSRL). The new system incorporates additional data channels to measure depolarization and multiple scattering in the lidar return. Schematic diagrams describing the new configurations are attached to this report. Increases in optical efficiency and receiver aperture, coupled with improvements in the stiffness and the thermal stability… more
Date: July 30, 1991
Creator: Eloranta, E.W.
Item Type: Refine your search to only Report
open access

Drop oscillation and mass transfer in alternating electric fields

Description: After the second annual progress report to DOE in July 1990, we continued the experimental work for another liquid system. The mathematical model was also improved to include secondary effects due to drop deformation and charge redistribution on the deformed drop surface. Originally, we planned to study a mass transfer process after the hydrodynamic modelling. Due to difficulty in measuring drop concentration during oscillations, we decided to study a heat transfer process instead. Using the an… more
Date: May 30, 1991
Creator: Carleson, T.E. & Yang, W.
Item Type: Refine your search to only Report
open access

Drop oscillation and mass transfer in alternating electric fields. Progress report

Description: After the second annual progress report to DOE in July 1990, we continued the experimental work for another liquid system. The mathematical model was also improved to include secondary effects due to drop deformation and charge redistribution on the deformed drop surface. Originally, we planned to study a mass transfer process after the hydrodynamic modelling. Due to difficulty in measuring drop concentration during oscillations, we decided to study a heat transfer process instead. Using the an… more
Date: May 30, 1991
Creator: Carleson, T. E. & Yang, W.
Item Type: Refine your search to only Report
open access

Drying and reconstitution of subbituminous coal - CRADA 90-004. Final report

Description: AMAX Coal Company (AMAX) has built a 200 tph, demonstration scale fluidized-bed drying process at their Belle Ayr Mine in Wyoming to dry the subbituminous coal of Wyodak seam from an average moisture content of 25-30 wt% to about 10 wt%. Currently, the dryer generates too many fines for proper transportation and handling. Though the raw coal is about 2-inch top size, about 80 wt% of the dryer product ends up finer than 28 mesh, and about 10 wt% of the dried coal is collected in the dryer bag ho… more
Date: October 30, 1991
Creator: Wen, W.W.; Nowak, M.A. & Killmeyer, R.P.
Item Type: Refine your search to only Report
open access

Duplex sampling apparatus and method

Description: An improved apparatus is provided for sampling a gaseous mixture and for measuring mixture components. The apparatus includes two sampling containers connected in series serving as a independently determine the amounts of condensable and noncondensable gases in admixture from a single sample. More specifically, a first container includes a first port capable of selectively connecting to and disconnecting from a sample source and a second port capable of selectively connecting to and disconnecti… more
Date: January 30, 1991
Creator: Brown, P. E. & Lloyd, R.
Item Type: Refine your search to only Patent
open access

Effects of emulsifier on particle size of a phase change material in a mixture with water

Description: The use of a phase-change material (PCM) in a district cooling system was studied in order to increase the heat transfer performance of the system. One of the major technical obstacles to its use is the clogging of the piping system. The present study attempts to minimize the clogging problem by using an emulsifier. Effects of the emulsifier on the mixture of water and hexadecane (a PCM) were studied. A small amount (60 to 2775 ppm) of emulsifier caused remarkable effects resulting in the produ… more
Date: June 30, 1991
Creator: Choi, E.; Cho, Y. I. & Lorsch, H. G.
Item Type: Refine your search to only Report
open access

Effects of emulsifier on particle size of a phase change material in a mixture with water. Progress report, March 31, 1991--June 30, 1991

Description: The use of a phase-change material (PCM) in a district cooling system was studied in order to increase the heat transfer performance of the system. One of the major technical obstacles to its use is the clogging of the piping system. The present study attempts to minimize the clogging problem by using an emulsifier. Effects of the emulsifier on the mixture of water and hexadecane (a PCM) were studied. A small amount (60 to 2775 ppm) of emulsifier caused remarkable effects resulting in the produ… more
Date: June 30, 1991
Creator: Choi, E.; Cho, Y. I. & Lorsch, H. G.
Item Type: Refine your search to only Report
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