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LIMB Demonstration Project Extension
The basic goal of the Limestone Injection Mitigation Burner (LIMB) demonstration is to extend LIMB technology development to a full- scale application on a representative wall-fired utility boiler. The successful retrofit of LIMB to an existing boiler is expected to demonstrate that (a) reductions of 50 percent or greater in SO{sub x} and NO{sub x} emissions can be achieved at a fraction of the cost of add-on FGD systems, (b) boiler reliability, operability, and steam production can be maintained at levels existing prior to LIMB retrofit, and (c) technical difficulties attributable to LIMB operation, such as additional slagging and fouling, changes in ash disposal requirements, and an increased particulate load, can be resolved in a cost-effective manner. The primary fuel to be used will be an Ohio bituminous coal having a nominal sulfur content of 3 percent or greater.
Date:
November 15, 1989
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Reactor Development Program Progress Report, April 1962
Research and development of water-cooled reactors are reported including work on EBWR and BORAX-V. Work on liquid metal cooled reactors is also reported in sections on general research and development, EBR-I and II, aud FARET. Other work is reported on genenal nuclear technology and advanced systems development. (J.R.D.)
Date:
May 15, 1962
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
IN-PILE-AUTOCLAVE TEST OF ZIRCALOY-2 CORROSION IN UO$sub 2$(NO$sub 3$)$sub 2$ SOLUTION AND OF SOLUTION STABILITY
None
Date:
January 15, 1962
Creator:
Davis, R.J.; Jenks, G.H.; Bohlmann, E.G.; Bolt, S.E.; DeCarlo, V.A. & Savage, H.C.
Object Type:
Report
System:
The UNT Digital Library
Kilowatt isotope power system. Phase II plan. Volume I. Phase II program plan
The development of a Kilowatt Isotope Power System (KIPS) was begun in 1975 for the purpose of satisfying the power requirements of satellites in the 1980's. The KIPS is a /sup 238/PuO/sub 2/-fueled organic Rankine cycle turbine power system to provide a design output of 500 to 2000 W. Phase II of the overall 3-phase KIPS program is described. This volume presents a program plan for qualifying the organic Rankine power system for flight test in 1982. The program plan calls for the design and fabrication of the proposed flight power system; conducting a development and a qualification program including both environmental and endurance testing, using an electrical and a radioisotope heat source; planning for flight test and spacecraft integration; and continuing ground demonstration system testing to act as a flight system breadboard and to accumulate life data. (LCL)
Date:
March 15, 1978
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
NO/sub x/ emissions from Hanford nuclear fuels reprocessing plants
Operation of the existing Hanford nuclear fuel reprocessing facilities will increase the release of nitrogen oxides (NO/sub x/) to the atmosphere over present emission rates. Stack emissions from two reprocessing facilities, one waste storage facility and two coal burning power plants will contain increased concentrations of NO/sub x/. The opacity of the reprocessing facilities' emissions is predicted to periodically exceed the State and local opacity limit of twenty percent. Past measurements failed to detect differences in the ambient air NO/sub x/ concentration with and without reprocessing plant operations. Since the facilities are not presently operating, increases in the non-occupational ambient air NO/sub x/ concentration were predicted from theoretical diffusion models. Based on the calculations, the annual average ambient air NO/sub x/ concentration will increase from the present level of less than 0.004 ppM to less than 0.006 ppM at the Hanford site boundaries. The national standard for the annual mean ambient air NO/sub 2/ concentration is 0.05 ppM. Therefore, the non-occupational ambient air NO/sub x/ concentration will not be increased to significant levels by reprocessing operations in the Hanford 200 Areas.
Date:
September 15, 1978
Creator:
Pajunen, A. L. & Dirkes, R. L.
Object Type:
Report
System:
The UNT Digital Library
Health and safety evaluation of a modified tunnel-borer design for application to single-entry coal-mine development
The health and safety analysis is part of an overall effort to identify and develop innovative underground coal extraction systems. The single-entry tunnel borer system was initially considered an innovative approach to underground mining because it exhibited a means of increasing the speed and efficiency of entry development by reducing the number of entries. However, to be considered a truly advanced system, the tunnel borer had to meet distinct safety criteria as well. The objective was to examine the tunnel borer design and determine whether it offset major health hazards, and satisfied the prescribed safety levels. As a baseline for comparison, the tunnel borer was compared against the continuous mining entry driving system. The results of the health analysis indicated that while the tunnel borer design offered improvements in dust control through the use of water sprays, a higher face ventilation rate, and the application of spalling rather than the conventional grinding process, it interjected an additional mutagenic is and toxic compound into the environment through the use of shotcrete. The tunnel borer system easily conformed with the prescribed fatality limit, but exceeded the required limits for disabling and overall injuries. It also exhibited projected disabling and overall injury rates …
Date:
February 15, 1982
Creator:
Zimmerman, W. F.
Object Type:
Report
System:
The UNT Digital Library
Lasers in chemical processing
The high cost of laser energy is the crucial issue in any potential laser-processing application. It is expensive relative to other forms of energy and to most bulk chemicals. We show those factors that have previously frustrated attempts to find commercially viable laser-induced processes for the production of materials. Having identified the general criteria to be satisfied by an economically successful laser process and shown how these imply the laser-system requirements, we present a status report on the uranium laser isotope separation (LIS) program at the Lawrence Livermore National Laboratory (LLNL).
Date:
April 15, 1982
Creator:
Davis, J.I.
Object Type:
Report
System:
The UNT Digital Library
Annual technical report: fiscal year 1981
The activities of the JPL Solar Thermal Power Systems Parabolic Dish Project are summarized for FY 1981. Included are discussions on subsystem designs of concentrators, receivers, engines, power converters, and thermal transport. Analyses and test results are also included along with progress on field tests, Small Community System development and the Parabolic Dish Test Site.
Date:
March 15, 1982
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Isotopic HCl transfer laser
An HCl laser which uses isotopic V-V energy transfer collisions as a pumping mechanism has been demonstrated. This multiline laser, which utilized an intracavity cold gas isotope filter, increased the energy from the P/sub 1/ lines of H/sup 37/Cl while decreasng the energies of the P/sub 1/ and P/sub 2/ lines of H/sup 35/Cl. Previously unreported lines, including emission from R branch transitions, have also been observed from single-line HCl and HBr lasers.
Date:
December 15, 1977
Creator:
Badcock, C.C.; Hwang, W.C.; Kalsch, J.F. & Kamada, R.F.
Object Type:
Report
System:
The UNT Digital Library
Characterization of Open-Cycle Coal-Fired MHD Generators. Quarterly Technical Summary Report No. 2, October 1--December 31, 1976. [Negative Ion Formation, Electron/Slag Interaction, and Alkali/Slag Interaction]
A study on how nonfuel components of coal will affect the electron and alkali seed chemistry in a high temperature coal combustion system like those envisioned for direct fired MHD generators is described. Three specific problems are being considered. The first problem area is to characterize the formation of negative ions due to electron attachment processes in the combustion flow. While some stable negative ions may be formed from hydrocarbon combustion species (OH, HCO/sup -//sub 3/), the bulk of the stable negative ions are expected to be formed from oxidized inorganic coal slag constituents (CO/sup -//sub 2/, PO/sup -//sub 2/, AlO/sup -//sub 2/, etc). Negative ion formation can reduce the conductivity of the MHD plasma, particularly at the low temperature end of the MHD channel, thus decreasing the efficiency of power generation. This phenomena is expected to be particularly severe in electrode boundary layers, and particular attention will be paid to conditions characteristic of flow along the electrodes. The second problem area involves the role slag condensation may play in determining the electron density through recombination, also adversely affecting conductivity in the core flow. The competitive balance between thermionic emission from slag droplets and electron/ion recombination on the droplet surfaces …
Date:
January 15, 1977
Creator:
Kolb, C. E.; Yousefian, V.; Wormhoudt, J.; Martinez-Sanchez, M. & Kerrebrock, J. L.
Object Type:
Report
System:
The UNT Digital Library
Operations plan for the Regional Seismic Test Network
The Regional Seismic Test Network program was established to provide a capability for detection of extremely sensitive earth movements. Seismic signals from both natural and man-made earth motions will be analyzed with the ultimate objective of accurately locating underground nuclear explosions. The Sandia National Laboratories, Albuquerque, has designed an unattended seismic station capable of recording seismic information received at the location of the seismometers installed as part of that specific station. A network of stations is required to increase the capability of determining the source of the seismic signal and the location of the source. Current plans are to establish a five-station seismic network in the United States and Canada. The Department of Energy, Nevada Operations Office, has been assigned the responsibility for deploying, installing, and operating these remote stations. This Operation Plan provides the basic information and tasking to accomplish this assignment.
Date:
May 15, 1981
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Theory and tests of two-phase turbines
Two-phase turbines open the possibility of new types of power cycles operating with extremely wet mixtures of steam and water, organic fluids, or immiscible liquids and gases. Possible applications are geothermal power, waste-heat recovery, refrigerant expansion, solar conversion, transportation turbine engines, and engine bottoming cycles. A theoretical model for two-phase impulse turbines was developed. Apparatus was constructed for testing one- and two-stage turbines (using speed decrease from stage to stage). Turbines were tested with water-and-nitrogen mixtures and Refrigerant 22. Nozzle efficiencies were 0.78 (measured) and 0.72 (theoretical) for water-and-nitrogen mixtures at a water/nitrogen mixture ratio of 68, by mass; and 0.89 (measured) and 0.84 (theoretical) for Refrigerant 22 expanding from 0.02 quality to 0.28 quality. Blade efficiencies (shaft power before windage and bearing loss divided by nozzle jet power) were 0.63 (measured) and 0.71 (theoretical) for water-and-nitrogen mixtures and 0.62 (measured) and 0.63 (theoretical) for Refrigerant 22 with a single-stage turbine, and 0.70 (measured) and 0.85 (theoretical) for water-and-nitrogen mixtures with a two-stage turbine.
Date:
March 15, 1982
Creator:
Elliot, D.G.
Object Type:
Report
System:
The UNT Digital Library
Microcomputer-based pellet trajectory guidance system for the Baseball II-T experiment
In the Baseball II-T experiment a pellet generation and injection system was employed to place frozen ammonia pellets at the focus of a laser beam. The original trajectory guidance system suffered a number of problems that limited its accuracy and complicated the operation of the system. These problems were related to variable charge-to-mass ratios, timing, pellet discrimination, and computer speed. The original system design was improved by changes to the sensing components, microcomputer, and trajectory guidance system.
Date:
October 15, 1977
Creator:
Mortensen, W.K.
Object Type:
Article
System:
The UNT Digital Library
Safety-analysis report for packaging (SARP) general-purpose heat-source module 750-Watt shipping container
The SARP includes discussions of structural integrity, thermal resistance, radiation shielding and radiological safety, nuclear criticality safety, and quality control. Extensive tests and evaluations were performed to show that the container will function effectively with respect to all required standards and when subjected to normal transportation conditions and the sequence of four hypothetical accident conditions (free drop, puncture, thermal, and water immersion). In addition, a steady state temperature profile and radiation profile were measured using two heat sources that very closely resemble the GPHS. This gave an excellent representation of the GPHS temperature and radiation profile. A nuclear criticality safety analysis determined that all safety requirements are met.
Date:
October 15, 1981
Creator:
Whitney, M. A.; Burgan, C. E.; Blauvelt, R. K.; Zocher, R. W. & Bronisz, S. E.
Object Type:
Report
System:
The UNT Digital Library
Tandem mirror reactor
A parametric analysis and a preliminary conceptual design for a 1000 MWe Tandem Mirror Reactor (TMR) are described. The concept is sufficiently attractive to encourage further work, both for a pure fusion TMR and a low technology TMR Fusion-Fission Hybrid.
Date:
November 15, 1977
Creator:
Moir, R.W.; Barr, W.L. & Carlson, G.A.
Object Type:
Article
System:
The UNT Digital Library
Latin America and the Caribbean: Key Issues for the 113th Congress
This report provides an overview of U.S. policy toward Latin America and the Caribbean, including the Obama Administration's priorities; examines changes in the region's economic and political environment that affect U.S. relations with the region; and analyzes U.S. policy toward the region and various recommendations made by policy analysts and think tanks. The report then examines the role of Congress and congressional interests in Latin America, looking at selected regional and country issues, including key issues that the 113th Congress is facing. Appendices provide U.S.-Latin America trade statistics and a listing of hearings focused on Latin America.
Date:
February 15, 2014
Creator:
Sullivan, Mark P.
Object Type:
Report
System:
The UNT Digital Library
Chemical Facility Security: Issues and Options for the 113th Congress
This report provides a brief overview of the existing statutory authority and implementing regulation. It describes several policy issues raised in previous debates regarding chemical facility security and identifies policy options for congressional consideration.
Date:
November 15, 2013
Creator:
Shea, Dana A.
Object Type:
Report
System:
The UNT Digital Library
Troubled Asset Relief Program (TARP): Implementation and Status
This report provides a brief outline of the programs created under the Troubled Asset Relief Program (TARP), changes made by Congress, and a summary of the current status and estimated costs of the program. It also provides an Appendix that contains detailed discussions of the individual TARP programs.
Date:
January 15, 2014
Creator:
Webel, Baird
Object Type:
Report
System:
The UNT Digital Library
The U.S. Trade Situation for Fruit and Vegetable Products
This report presents recent trends in U.S. fruit and vegetable trade and highlights some of the factors contributing to these trends. This summary excludes trade data for tree nuts and processed tree nut products.
Date:
January 15, 2014
Creator:
Johnson, Renée
Object Type:
Report
System:
The UNT Digital Library
The Role of Trade Secrets in Innovation Policy
This report provides an overview of the law and policy of trade secrets. It discusses the role of trade secrets in six sections: Trade Secrets and Innovation Policy, An Overview of Trade Secret Law (Basic Principles, and Sources of Law), The Economic Espionage Act, Trade Secrets and Patents (Introduction to the Patent System, Trade Secrets and Patents Compared, and The Prior Commercial User Defense), Congressional Issues and Options, and Concluding Observations.
Date:
January 15, 2014
Creator:
Thomas, John R.
Object Type:
Report
System:
The UNT Digital Library
Social Security Reform: Current Issues and Legislation
This report discusses The Social Security reform, which is an issue of interest to policy makers that arises in various contexts, from improving retirement security to reducing federal budget deficits. The report looks at the Social Security debate, Social Security future projections, and public opinion on Social Security reform. It also looks at past reform measures, from the 109th-112th Congress, none of which received congressional action.
Date:
January 15, 2014
Creator:
Nuschler, Dawn
Object Type:
Report
System:
The UNT Digital Library
The European Union: Questions and Answers
This report provides a brief overview of the European Union (EU), an economic and political partnership between 27 sovereign member states. The report describes the formation of the EU, the three main institutions of the EU, and the EU's relationship with the United States.
Date:
January 15, 2014
Creator:
Archick, Kristin
Object Type:
Report
System:
The UNT Digital Library
Follow-On Biologics: The Law and Intellectual Property Issues
This report reviews the Biologics Price Competition and Innovation Act of 2009 (BPCIA), within the context of intellectual property and innovation issues. It provides an introduction to the biologics industry, introduces the regulatory and intellectual property provisions of the BPCIA, considers the potential market for biosimilars and possible industry responses that may arise in the wake of this legislation, and closes with concluding observations.
Date:
January 15, 2014
Creator:
Thomas, John R.
Object Type:
Report
System:
The UNT Digital Library
Iran Sanctions
This report analyzes U.S. and international sanctions against Iran and provides examples, based on a wide range of open source reporting, of companies and countries that conduct business with Iran.
Date:
January 15, 2014
Creator:
Katzman, Kenneth
Object Type:
Report
System:
The UNT Digital Library