33 Matching Results

Search Results

Results: 1 - 24 next
open access

Survey of Magnetic Fields Near BPA 230-kV and 500-kV Transmission Lines.

Description: The purpose of this study was to characterize typical levels and variability of 60Hz magnetic fields at the centerline and edge of right-of-way of Bonneville Power Administration (BPA) 230-kV and 500-kV transmission lines. This was accomplished by taking magnetic field measurements at over 800 spans in Oregon and Washington. The spans were sampled using a stratified random sampling procedure with region (East vs. West), voltage (230-kV vs 500-kV), and circuit configuration as strata. There were… more
Date: May 20, 1991
Creator: Perrin, Nancy; Aggarwal, Rajinder Pal & Bracken, T. Daniel
Partner: UNT Libraries Government Documents Department
open access

The Effect of Chemical Additives on the Synthesis of Ethanol

Description: The objective of this research is to elucidate the role of various chemical additives on ethanol synthesis over Rh- and Ni-based catalysts. Chemical additives used for this study will include S, P, Ag, Cu, Mn, and Na which have different electronegativities. The effect of additives on the surface state of the catalysts, heat of adsorption of reactant molecules, reaction intermediates, reaction pathways, reaction kinetics, and product distributions is/will be investigated by a series of experime… more
Date: September 20, 1991
Creator: Chuang, S. S. C. & Balakos, M. W.
Partner: UNT Libraries Government Documents Department
open access

The Effect of Chemical Additives on the Synthesis of Ethanol

Description: The objective of this research is to elucidate the role of various chemical additives on ethanol synthesis over Rh- and Ni-based catalysts. Chemical additives used for this study will include S, P, Ag, Cu, Mn, and Na which have different electronegativities. The effect of additives on the surface state of the catalysts, heat of adsorption of reactant molecules, reaction intermediates, reaction pathways, reaction kinetics, and product distributions is/will be investigated by a series of experime… more
Date: September 20, 1991
Creator: Chuang, S. C. & Balakos, M. W.
Partner: UNT Libraries Government Documents Department
open access

Hanford Site environmental report for calendar year 1990

Description: The Hanford Site Environmental Report is prepared annually to summarize environmental data and information, describe environmental management performance, and demonstrate the status of compliance with environmental regulations. The report also highlights major environmental programs and efforts. The following sections: describe the Hanford Site and its new mission; summarize the status in 1990 of compliance with environmental regulations; describe the environmental programs at the Hanford Site;… more
Date: December 20, 1991
Creator: Woodruff, R.K.; Hanf, R.W.; Hefty, M.G. & Lundgren, R.E. (eds.)
Partner: UNT Libraries Government Documents Department
open access

Scale-up circulating fluidized bed coal combustors

Description: Circulating fluidization is a promising technology for designing efficient coal combustors with high solid feed rates. Unfortunately, limited understanding of circulating fluidized beds (CFB) has rendered design extrapolations from pilot reactors to full-scale plants both empirical and expensive. In CFBs, hydrodynamics and heat transfer are difficult to predict, and the behavior of the flow under scale-up is unclear. Thus the objectives of this research were to quantify the effect of scale-up o… more
Date: November 20, 1991
Creator: Louge, M.Y.
Partner: UNT Libraries Government Documents Department
open access

Toxic organic compounds from energy production

Description: The US Department of Energy's Office of Health and Environmental Research (OHER) has supported work in our laboratory since 1977. The general theme of this program has been the identification of potentially toxic organic compounds associated with various combustion effluents, following the fates of these compounds in the environment, and improving the analytical methodology for making these measurements. The projects currently investigation include: an improved sampler for semi-volatile compoun… more
Date: September 20, 1991
Creator: Hites, R.A.
Partner: UNT Libraries Government Documents Department
open access

Enhancing Sample Preparation Capabilities for Accelerator Mass Spectrometry Radiocarbon and Radiocalcium Studies

Description: With support provided by the LLNL Accelerator Mass Spectrometry Laboratory, the UCR Radiocarbon Laboratory continued its studies involving sample pretreatment and target preparation for both AMS radiocarbon ({sup 14}C) and radiocalcium ({sup 41}Ca) involving applications to archaeologically -- and paleoanthropologically- related samples. With regard to AMS {sup 14}C-related studies, we have extended the development of a series of procedures which have, as their initial goal, the capability to c… more
Date: August 20, 1991
Creator: Taylor, R. E.
Partner: UNT Libraries Government Documents Department
open access

Engineering design and analysis of advanced physical fine coal cleaning technologies

Description: The major goal is to provide the simulation tools for modeling both conventional and advanced coal cleaning technologies. This DOE project is part of a major research initiative by the Pittsburgh Energy Technology Center (PETC) aimed at advancing three advanced coal cleaning technologies- heavy-liquid cylconing, selective agglomeration, and advanced froth flotation through the proof-of- concept (POC) level. The commercially available ASPEN PLUS process simulation package will be extended to han… more
Date: October 20, 1991
Creator: Gallier, P.W.
Partner: UNT Libraries Government Documents Department
open access

Implications of TAE modes for the design of ITER

Description: A simple mixing-length estimate of diffusion of alphas particles by toroidicity-induced shear Alfven eigenmodes (TAE) is used, in zero and one-dimensional models, to evaluate the importance of diffusion of meeting ignition requirements for ITER and other next-generation burning plasma experiments. It is found that, depending on a number of assumptions, diffusion could reduce that effectiveness of alpha heating in the core as much as an order of magnitude. However, the effect would be less if on… more
Date: May 20, 1991
Creator: Fowler, T.K. (Lawrence Livermore National Lab., CA (USA)) & Finkenthal, D. (California Univ., Berkeley, CA (USA))
Partner: UNT Libraries Government Documents Department
open access

The Effect of Chemical Additives on the Synthesis of Ethanol

Description: The objective of this research is to elucidate the role of various chemical additives on ethanol synthesis over Rh- and Ni-based catalysts. Chemical additives used for this study will include S, P, Ag, Cu, Mn, and Na which have different electronegativities. The effects of additives on the surface state of the catalysts, heat of adsorption of reactant molecules, reaction intermediates, reaction pathways, reaction kinetics, and product distributions is/will be investigated by a series of experim… more
Date: December 20, 1991
Creator: Chuang, S. S. C.
Partner: UNT Libraries Government Documents Department
open access

A theory of deterrence

Description: The purpose of this monograph is to start a theory of deterrence which has the capability of quantitatively answering the question of what is required to deter a nation or alliance from certain acts. Despite the existence of voluminous writing on deterrence, from the beginning of the nuclear age and even before, none of it attempts a theoretical discussion of how to calculate what it takes to deter a country from committing some acts which are objectionable to another country. Many theories of … more
Date: March 20, 1991
Creator: Erickson, S. A. Jr.
Partner: UNT Libraries Government Documents Department
open access

The Effect of Chemical Additives on the Synthesis of Ethanol. Technical Progress Report 17, September 16, 1991--December 15, 1991

Description: The objective of this research is to elucidate the role of various chemical additives on ethanol synthesis over Rh- and Ni-based catalysts. Chemical additives used for this study will include S, P, Ag, Cu, Mn, and Na which have different electronegativities. The effects of additives on the surface state of the catalysts, heat of adsorption of reactant molecules, reaction intermediates, reaction pathways, reaction kinetics, and product distributions is/will be investigated by a series of experim… more
Date: December 20, 1991
Creator: Chuang, S. S. C.
Partner: UNT Libraries Government Documents Department
open access

Scale-up circulating fluidized bed coal combustors. Final report

Description: Circulating fluidization is a promising technology for designing efficient coal combustors with high solid feed rates. Unfortunately, limited understanding of circulating fluidized beds (CFB) has rendered design extrapolations from pilot reactors to full-scale plants both empirical and expensive. In CFBs, hydrodynamics and heat transfer are difficult to predict, and the behavior of the flow under scale-up is unclear. Thus the objectives of this research were to quantify the effect of scale-up o… more
Date: November 20, 1991
Creator: Louge, M. Y.
Partner: UNT Libraries Government Documents Department
open access

Hanford Site environmental report for calendar year 1990

Description: The Hanford Site Environmental Report is prepared annually to summarize environmental data and information, describe environmental management performance, and demonstrate the status of compliance with environmental regulations. The report also highlights major environmental programs and efforts. The following sections: describe the Hanford Site and its new mission; summarize the status in 1990 of compliance with environmental regulations; describe the environmental programs at the Hanford Site;… more
Date: December 20, 1991
Creator: Woodruff, R. K.; Hanf, R. W.; Hefty, M. G. & Lundgren, R. E.
Partner: UNT Libraries Government Documents Department
open access

Development of a Coal Quality Expert. Technical progress report No. 6, [July 1--September 30, 1991]

Description: This is the sixth Technical Progress Report, describing work performed under DOE Contract No. DE-FC22-90PC89663, ``Development of a Coal Quality Expert.`` The contract is a Cooperative Agreement between the US Department of Energy, CQ Inc., and Combustion Engineering, Inc. This report covers the period from July 1 through September 30, 1991. Four companies and seven host utilities have teamed with CQ Inc. and C-E to perform the work on this project. The work falls under DOE`s Clean Coal Technol… more
Date: November 20, 1991
Partner: UNT Libraries Government Documents Department
open access

Pelletizing/reslurrying as a means of distributing and firing clean coal

Description: The objective of this study is to develop technology that permits the practical and economic preparation, storage, handling, and transportation of coal pellets, which can be formulated into Coal-Water Fuels (CWFs) suitable for firing in small- and medium-size commercial and industrial boilers, furnaces, and engines.
Date: September 20, 1991
Creator: Conkle, H. N.; Raghavan, J. K.; Smit, F. J. & Jha, M. C.
Partner: UNT Libraries Government Documents Department
open access

D0 Cryo-Corner Piping Flexibility Analysis

Description: Table 1 indicates that the stiffest line is the cryogenic vent line while the most flexible line is the 6 inch insulating vacuum line. The table also shows that the four remaining lines are roughly of the same stiffness. This follows closely with the experience of installing the U-tubes in the assembly hall. The vent line was by far the stiffest, while the other lines are comparitively more flexible. However, the value for the LAr line is misleading. It is as flexible as the other 1 1/2 x 3 lin… more
Date: August 20, 1991
Creator: Clark, D.
Partner: UNT Libraries Government Documents Department
open access

The use of ion chromatography-dc plasma atomic emission spectrometry for the speciation of trace metals. Annual performance report, February 1, 1989--January 31, 1992

Description: The original objects of this research program were: to interface d.c. plasma atomic emission spectrometer with an ion chromatograph; to characterize and optimize the combined systems for application in the speciation of metals in aqueous solutions; to use this system in the study of the solution chemistry of various metals; and to find ways in which the measurement sensitivity of the method can be enhanced, thereby allowing the detection of metal species at low ppb concentration levels. This ap… more
Date: September 20, 1991
Creator: Urasa, I. T.
Partner: UNT Libraries Government Documents Department
open access

Development of a coal quality expert. Technical progress report No. 6, [July 1--September 30, 1991]

Description: The project will provide the utility industry with a PC expert system to confidently and inexpensively evaluate the potential for coal cleaning, blending, and switching options to reduce emissions while producing lowest cost electricity. Specifically, this project will: (1) 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; (2) Develop and vali… more
Date: November 20, 1991
Partner: UNT Libraries Government Documents Department
open access

Pelletizing/reslurrying as a means of distributing and firing clean coal. Final quarterly technical progress report No. 4, April 1, 1991--June 30, 1991

Description: The objective of this study is to develop technology that permits the practical and economic preparation, storage, handling, and transportation of coal pellets, which can be formulated into Coal-Water Fuels (CWFs) suitable for firing in small- and medium-size commercial and industrial boilers, furnaces, and engines.
Date: September 20, 1991
Creator: Conkle, H. N.; Raghavan, J. K.; Smit, F. J. & Jha, M. C.
Partner: UNT Libraries Government Documents Department
open access

Cupola modeling research: Phase 2 (Year one), Final report

Description: Objective was to develop a mathematical model of the cupola furnace (cast iron production) in on-line and off-line process control and optimization. In Phase I, the general structure of the heat transfer, fluid flow, and chemical models were laid out, providing reasonable descriptions of cupola behavior with a one-dimensional representation. Work was also initiated on a two-dimensional model. Phase II was focused on perfecting the one-dimensional model. The contributions include these from MIT,… more
Date: November 20, 1991
Partner: UNT Libraries Government Documents Department
open access

Waste Tank cooling coil leakage calculations

Description: A high activity Waste Tank cooling coil supply line cracked on September 12, 1991 at the H-Area East pump house, draining the cooling water to the ground. This raised the possibility of draining high-activity waste to the ground by siphon action through the submerged cycling coils since some of the cooling water supply lines are located up to 40 ft. below waste tank liquid level. The following documentation summarizes conclusions and provides details of flow calculation presented earlier during… more
Date: December 20, 1991
Creator: Dworjanyn, L.O.
Partner: UNT Libraries Government Documents Department
open access

Engineering design and analysis of advanced physical fine coal cleaning technologies. Quarterly technical progress report No. 8, July--September 1991

Description: The major goal is to provide the simulation tools for modeling both conventional and advanced coal cleaning technologies. This DOE project is part of a major research initiative by the Pittsburgh Energy Technology Center (PETC) aimed at advancing three advanced coal cleaning technologies- heavy-liquid cylconing, selective agglomeration, and advanced froth flotation through the proof-of- concept (POC) level. The commercially available ASPEN PLUS process simulation package will be extended to han… more
Date: October 20, 1991
Creator: Gallier, P. W.
Partner: UNT Libraries Government Documents Department
open access

Nitrogen oxide abatement by distributed fuel addition. Final report

Description: Reburning is examined as a means of NO{sub x} destruction in a 17 kW down-fired pulverized coal combustor. In reburning, a secondary fuel is introduced downstream of the primary flame to produce a reducing zone, favorable to NO destruction, and air is introduced further downstream to complete the combustion. Emphasis is on natural gas reburning and a bituminous coal primary flame. A parametric examination of reburning employing a statistical experimental design, is conducted, complemented by de… more
Date: September 20, 1991
Creator: Wendt, J. O. L. & Mereb, J. B.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen