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Integrated dry NO sub x /SO sub 2 emissions control system

Description: The DOE Cooperative Agreement No. DE-FC22-91PC90550 dated March 11, 1991, Public Service Company of Colorado has prepared the following quarterly report for Phases I, IIA, and IIB of the Integrated Dry NO{sub x}SO{sub 2} Emissions Control System Project. This project includes low NO{sub x} burners with NO{sub x} ports (post firing air injection), humidification and dry sorbent injection.
Date: February 15, 1992
Partner: UNT Libraries Government Documents Department
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Weld Penetration and Defect Control

Description: Highly engineered designs increasingly require the use of improved materials and sophisticated manufacturing techniques. To obtain optimal performance from these engineered products, improved weld properties and joint reliability are a necessarily. This requirement for improved weld performance and reliability has led to the development of high-performance welding systems in which pre-programmed parameters are specified before any welding takes place. These automated systems however lack the ab… more
Date: May 15, 1992
Creator: Chin, Bryan A.
Partner: UNT Libraries Government Documents Department
open access

Integrated dry NO sub x /SO sub 2 emissions control system

Description: The DOE Cooperative Agreement No. DE-FC22-91PC90550 dated march 11, 1991, Public Service Company of Colorado has prepared the following quarterly report for Phases I, IIA, and IIB of the Integrated Dry No{sub x}/SO{sub 2} Emissions Control System Project. This project includes low NO{sub x} burners with NO{sub x} ports (post firing air injection), humidification and dry sorbent injection.
Date: February 15, 1992
Partner: UNT Libraries Government Documents Department
open access

Anaerobic bioprocessing of low-rank coals

Description: The overall goal of this project is to find biological methods to remove carboxylic functionalities from low-rank coals and to assess the properties of the modified coal towards coal liquefaction. The main objectives for this quarter were: (1) continuation of microbial consortia development and maintenance, (2) crude enzyme study using best decarboxylating organisms, (3) decarboxylation of lignite, demineralized Wyodak coal and model polymers, and (4) characterization of biotreated coals.
Date: April 15, 1992
Creator: Jain, M. K.; Narayan, R. & Han, O.
Partner: UNT Libraries Government Documents Department
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Possible explosive compounds in the Savannah River Site waste tank farm facilities

Description: Based on a comparison of the known constituents in high-level nuclear waste stored at the Savannah River Site (SRS) and explosive compounds reported in the literature, only two classes of explosive compounds (metal NO{sub x} compounds and organic compounds) were identified as requiring further work to determine if they exist in the waste, and if so, in what quantities. Of the fourteen classes of explosive compounds identified as conceivably being present in tank farm operations, nine classes (m… more
Date: March 15, 1992
Creator: Hobbs, D. T.
Partner: UNT Libraries Government Documents Department
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Improved methods to manufacture aluminum

Description: A low-temperature (750{degrees}C) process to produce aluminum, employing dimensionally-stable electrodes, was investigated under this contract. Tests were carried out at a 10-ampere scale to develop a nonconsumable anode and to evaluate certain cell operating parameters. The work was carried out in conjunction with a NSF SBIR research grant to study the fundamental science aspects of the process. A scaled up 300-ampere cell was built and a preliminary test run was made with encouraging results.… more
Date: June 15, 1992
Partner: UNT Libraries Government Documents Department
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Electronic states in systems of reduced dimensionality

Description: This report briefly discusses the following research: magnetically modulated systems, inelastic magnetotunneling, ballistic transport review, screening in reduced dimensions, raman and electron energy loss spectroscopy; and ballistic quantum interference effects. (LSP).
Date: April 15, 1992
Creator: Ulloa, S.E.
Partner: UNT Libraries Government Documents Department
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NQR-NMR studies of higher alcohol synthesis Cu-Co catalysts

Description: During this period, we focused our attention in analyzing the magnetic nature of the extensively used trimetallic catalyst system Cu-Co-Cr for the production of higher alcohols. We believe that there could be some correspondence between the catalytic and magnetic behaviors of the transition metal catalyst systems. Both the morphology and metallic charge distribution of the particles are know to govern the catalytic as well as the magnetic properties of the system. Based on this concept, we have… more
Date: April 15, 1992
Partner: UNT Libraries Government Documents Department
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Innovative Clean Coal Technologies (ICCT): Demonstration of innovative applications of technology for cost reductions to the CT-121 FGD process

Description: The objective of this project is to demonstrate on a commercial scale several innovative applications of cost-reducing technology to the Chiyoda Thoroughbred-121 (CT-121) process. CT-121 is a second generation flue gas desulfurization (FGD) process which is considered by the Electric Power Research Institute (EPRI) and Southern Company Services (SCS) to be one of the most reliable and lowest cost FGD options for high-sulfur coal-fired utility boiler applications. Demonstrations of the innovativ… more
Date: May 15, 1992
Partner: UNT Libraries Government Documents Department
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Characterization of a 1,4-. beta. -D-glucan synthase from Dictyostelium discoideum

Description: Various aspects of research concerning Dictyostelium discoideum are presented. The initial focus of this project was upon: the characterization of potential probes for the cellulose synthase (antibody and nucleic acid), the determination of the cultural induction conditions of cellulose synthesis, the solubilization of the enzyme activity, the development of a non-inhibitory disruption buffer, the generation and isolation of mutant strains deficient in cellulose synthesis, and the development o… more
Date: January 15, 1992
Creator: Blanton, R.L.
Partner: UNT Libraries Government Documents Department
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Monolithic solid oxide fuel cell technology advancement for coal- based power generation

Description: The program is conducted by a team consisting of AiResearch Los Angeles Division of Allied-Signal Aerospace Company and Argonne National Laboratory (ANL). The objective of the program is to advance materials and fabrication methodologies to develop a monolithic solid oxide fuel cell (MSOFC) system capable of meeting performance, life, and cost goals for coal-based power generation. The program focuses on materials research and development, fabrication process development, cell/stack performance… more
Date: January 15, 1992
Partner: UNT Libraries Government Documents Department
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Evaluation of Gas-Reburning and Low NOx Burners on a Wall Fired Boiler

Description: Low NO{sub x} burners operate on the principle of delayed mixing between the coal fuel and burner air, so that less NO{sub x} is formed. Gas reburning is a combustion modification technique that consists of firing 80--85 percent of the fuel corresponding to the total heat release in the lower furnace. Reduction of NO{sub x} to molecular nitrogen (N{sub 2}) is accomplished via the downstream injection of the remaining fuel requirement in the form of natural gas (which also reduces the total SO{s… more
Date: January 15, 1992
Partner: UNT Libraries Government Documents Department
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Evaluation of gas-reburning and low NO sub x burners on a wall fired boiler

Description: The primary objective of this CCT project is to evaluate the use of Gas Reburning and Low NO{sub x} Burners (GR-LNB) for NO{sub x} emission control from a wall fired boiler. It is anticipated that, if the demonstration is successful, the GR-LNB technology could become commercialized during the 1990's and will be capable of (1) achieving significant reduction in the emissions of nitrogen oxides and sulfur dioxide (another acid rain precursor) from existing facilities to minimize environmental im… more
Date: April 15, 1992
Partner: UNT Libraries Government Documents Department
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Nuclear physics at extreme energy density

Description: This report discusses topics in the following areas: QCD transport theory; minijets in hadronic and nuclear collisions; lattice gauge theory; hadronic matter and other studies; and strong electromagnetic fields. (LSP)
Date: May 15, 1992
Creator: Mueller, B.
Partner: UNT Libraries Government Documents Department
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Development and application of photosensitive device systems to studies of biological and organic materials

Description: This report describes progress as of the third year of a 3-year DoE grant for 1/1/92 to 12/31/92. Because this is the last year of a 3- year grant cycle, this report will summarize progress over the entire 3-year period. The overall goals of the grant are to develop novel instrumentation and techniques for the performance of biological and materials research, and especially for the development of x-ray detectors suitable for use at storage ring sources. Research progress has been excellent and … more
Date: May 15, 1992
Creator: Gruner, S. M. & Reynolds, G. T.
Partner: UNT Libraries Government Documents Department
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Enhancing the use of coals by gas reburning-sorbent injection

Description: The objective of this project is to evaluate and demonstrate a cost effective emission control technology for acid rain precursors, oxides of nitrogen (NO{sub x}) and sulfur (SO{sub x}), on two coal fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices: tangential and cyclone fired. Work on a third unit, wall fired, has been stopped because of funding limitations. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and… more
Date: April 15, 1992
Partner: UNT Libraries Government Documents Department
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Air gun test evaluation

Description: A mechanical shock testing apparatus is used for testing the response of components subject to large accelerations in hostile environments. The test acceleration is provided by the impact of a bullet against a plate on which the component to be tested is mounted. This report describes a series of experiments that were performed to determine the dependence of the air gun test apparatus performance on incremental changes in the hardware configurations, changes in the pressure used to drive the bu… more
Date: January 15, 1992
Creator: Carleton, J.J. II; Fox, L. & Rudy, C.R.
Partner: UNT Libraries Government Documents Department
open access

Role of structure in ion movement of glasses

Description: Can the structure of a melt much above the glass transition temperature (Tg) determine the structure and (transport) properties of glass In other words, are there extremely long lasting configurations in a melt which would affect ion transport in the glassy state A major effort during the past year has been to address these very fundamental questions. An important consideration here is to separate the effect of the variable melt structure from that of a variable cooling rate in the glass transf… more
Date: January 15, 1992
Creator: Jain, Himanshu
Partner: UNT Libraries Government Documents Department
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Enchancing the use of coals by gas reburning-sorbent injection

Description: The objective of this project is to evaluate and demonstrate a cost effective emission control technology for acid rain precursors, oxides of nitrogen (NO{sub x}) and sulfur (SO{sub x}), on two coal fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices: tangential and cyclone fired. Work on a third unit, wall fired, has been stopped because of funding limitations. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and… more
Date: January 15, 1992
Partner: UNT Libraries Government Documents Department
open access

TESLA test cell cryostat support post thermal and structural analysis

Description: TeV Superconducting Linear Accelerator (TESLA) cryostats consist of eight, 1-meter-long radio frequency (RF) cavity modules cryogenically connected in series with one focusing quadrupole. Each module contains one, 9-cell superconducting RF cavity operating at 1.3 GHz in a 1.8K helium bath. Individual modules are self-contained in the that they have their own input couplers, high order mode couplers, and tuning mechanisms. Services common to the entire cryostat consist of 70K and 4.5K thermal ra… more
Date: August 15, 1992
Creator: Nicol, T.H.
Partner: UNT Libraries Government Documents Department
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Cryotribology: Development of cryotribological theories and application to cryogenic devices

Description: High-performance superconducting solenoids are susceptible to premature quenches, or superconducting to normal state transitions, due to abrupt conductor movements within the winding. Abrupt motions involving 5{approximately}10{mu}m conductor displacements dissipate sufficient energy to trigger a quench. Sliding and mechanical behaviors of materials at cryogenic temperatures have been experimentally examined. After accounting for changes in the sliding materials' low-temperature strength proper… more
Date: September 15, 1992
Creator: Iwasa, Y.; Michael, P. (Massachusetts Inst. of Tech., Cambridge, MA (United States)) & Rabinowicz, E. (Massachusetts Inst. of Tech., Cambridge, MA (United States) Massachusetts Inst. of Tech., Cambridge, MA (United States). Francis Bitter National Magnet Lab.)
Partner: UNT Libraries Government Documents Department
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Onsite Well Screening With a Transportable Gas Chromatography/Mass Spectrometer System

Description: The number of hazardous waste site operations continue to multiply. The requirements for efficient chemical assessment and monitoring of these sites become more stringent daily. As more samples are required, the time required for cleanup operations also increases and may make analytical costs prohibitive. Thus improvements in operation efficiency and reduction of cost in evaluating specific sites to minimize or eliminate their toxic effects on the surrounding environment are critical. For many … more
Date: October 15, 1992
Creator: Rossabi, J.; Eckenrode, B. A. & Owens, B.
Partner: UNT Libraries Government Documents Department
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Groundwater flow model for the General Separations Area, Savannah River Site

Description: The Savannah River Site (SRS) is a Department of Energy (DOE) facility located near Aiken, South Carolina. Assessment of groundwater flow rates and directions, potential contaminant transport times, and concentration of potential contaminants is required to determine current and future environmental effects resulting from releases by these facilities. Proposed closure actions and/or remedial alternatives also need to be evaluated. Numerical groundwater flow and solute transport models are a mea… more
Date: May 15, 1992
Partner: UNT Libraries Government Documents Department
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