National Library of Energy BETA

Sample records for fine particulate proposals

  1. Advanced Fine Particulate Characterization Methods

    SciTech Connect (OSTI)

    Steven Benson; Lingbu Kong; Alexander Azenkeng; Jason Laumb; Robert Jensen; Edwin Olson; Jill MacKenzie; A.M. Rokanuzzaman

    2007-01-31

    The characterization and control of emissions from combustion sources are of significant importance in improving local and regional air quality. Such emissions include fine particulate matter, organic carbon compounds, and NO{sub x} and SO{sub 2} gases, along with mercury and other toxic metals. This project involved four activities including Further Development of Analytical Techniques for PM{sub 10} and PM{sub 2.5} Characterization and Source Apportionment and Management, Organic Carbonaceous Particulate and Metal Speciation for Source Apportionment Studies, Quantum Modeling, and High-Potassium Carbon Production with Biomass-Coal Blending. The key accomplishments included the development of improved automated methods to characterize the inorganic and organic components particulate matter. The methods involved the use of scanning electron microscopy and x-ray microanalysis for the inorganic fraction and a combination of extractive methods combined with near-edge x-ray absorption fine structure to characterize the organic fraction. These methods have direction application for source apportionment studies of PM because they provide detailed inorganic analysis along with total organic and elemental carbon (OC/EC) quantification. Quantum modeling using density functional theory (DFT) calculations was used to further elucidate a recently developed mechanistic model for mercury speciation in coal combustion systems and interactions on activated carbon. Reaction energies, enthalpies, free energies and binding energies of Hg species to the prototype molecules were derived from the data obtained in these calculations. Bimolecular rate constants for the various elementary steps in the mechanism have been estimated using the hard-sphere collision theory approximation, and the results seem to indicate that extremely fast kinetics could be involved in these surface reactions. Activated carbon was produced from a blend of lignite coal from the Center Mine in North Dakota and sunflower hulls for the biomass material to be carbonized. The ability to remove mercury from a bituminous coal's derived flue gas was low. Removals of only 15% were attained while injecting 6 lb/Macf of activated carbon upstream of an electrostatic precipitator. Poisoning of sites on the activated carbon by SO{sub 2} and SO{sub 3} contributed to the poor mercury capture performance.

  2. Combustor for fine particulate coal

    DOE Patents [OSTI]

    Carlson, L.W.

    1988-01-26

    A particulate coal combustor with two combustion chambers is provided. The first combustion chamber is toroidal; air and fuel are injected, mixed, circulated and partially combusted. The air to fuel ratio is controlled to avoid production of soot or nitrogen oxides. The mixture is then moved to a second combustion chamber by injection of additional air where combustion is completed and ash removed. Temperature in the second chamber is controlled by cooling and gas mixing. The clean stream of hot gas is then delivered to a prime mover. 4 figs.

  3. Combustor for fine particulate coal

    DOE Patents [OSTI]

    Carlson, Larry W. (Oswego, IL)

    1988-01-01

    A particulate coal combustor with two combustion chambers is provided. The first combustion chamber is toroidal; air and fuel are injected, mixed, circulated and partially combusted. The air to fuel ratio is controlled to avoid production of soot or nitrogen oxides. The mixture is then moved to a second combustion chamber by injection of additional air where combustion is completed and ash removed. Temperature in the second chamber is controlled by cooling and gas mixing. The clean stream of hot gas is then delivered to a prime mover.

  4. Combustor for fine particulate coal

    DOE Patents [OSTI]

    Carlson, L.W.

    1988-11-08

    A particulate coal combustor with two combustion chambers is provided. The first combustion chamber is toroidal; air and fuel are injected, mixed, circulated and partially combusted. The air to fuel ratio is controlled to avoid production of soot or nitrogen oxides. The mixture is then moved to a second combustion chamber by injection of additional air where combustion is completed and ash removed. Temperature in the second chamber is controlled by cooling and gas mixing. The clean stream of hot gas is then delivered to a prime mover. 4 figs.

  5. The use of a receptor model for fine particulate in Mexico City

    SciTech Connect (OSTI)

    Vega, E.; Garcia, I.; Ruiz, M.E.

    1997-12-31

    Mexico City Metropolitan Area (MCMA) faces severe pollution problems typical of large urban areas all over the world. The city is in an elevated basin (2,240 m) at a subtropical latitude (19.5N), with a high mountain chain at the West and South. This basin setting inhibits dispersion of pollution and contributes to the frequent wintertime thermal inversions which further trap pollutants near the surface. The study of atmospheric pollution and its control have been carried out using physico-chemical dispersion models, and the type known as receptor models often finds favor. The main objective of this paper is to present the results of a chemical mass balance receptor model applied to two different data sets of particulate matter. The twelve-hour samples were collected during day and night periods in the winter of 1989, previous to the introduction of catalytic converters in automobiles, and the other after 1991, since the catalytic converters are compulsory in all the new model vehicles. Samples of particulate matter were collected using a denuder and a Hi-Vol systems for the fine fraction (aerosols with diameter less than 2.5 {micro}m) and total suspended particles respectively. The results show that the major source contributions to the inhalable particulate matter for the first period are: automobiles (44%); secondary aerosols (19%); dust (10%).

  6. SOURCE SIGNATURES OF FINE PARTICULATE MATTER FROM PETROLEUM REFINING AND FUEL USE

    SciTech Connect (OSTI)

    Gerald P. Huffman; Frank E. Huggins; Naresh Shah; Artur Braun; Yuanzhi Chen; J. David Robertson; Joseph Kyger; Adel F. Sarofim; Ronald J. Pugmire; Henk L.C. Meuzelaar; JoAnn Lighty

    2003-07-31

    The molecular structure and microstructure of a suite of fine particulate matter (PM) samples produced by the combustion of residual fuel oil and diesel fuel were investigated by an array of analytical techniques. Some of the more important results are summarized below. Diesel PM (DPM): A small diesel engine test facility was used to generate a suite of diesel PM samples from different fuels under engine load and idle conditions. C XANES, {sup 13}C NMR, XRD, and TGA were in accord that the samples produced under engine load conditions contained more graphitic material than those produced under idle conditions, which contained a larger amount of unburned diesel fuel and lubricating oil. The difference was enhanced by the addition of 5% of oxygenated compounds to the reference fuel. Scanning transmission x-ray micro-spectroscopy (STXM) was able to distinguish particulate regions rich in C=C bonds from regions rich in C-H bonds with a resolution of {approx}50 nm. The former are representative of more graphitic regions and the latter of regions rich in unburned fuel and oil. The dominant microstructure observed by SEM and TEM consisted of complex chain-like structures of PM globules {approx}20-100 nm in mean diameter, with a high fractal dimension. High resolution TEM revealed that the graphitic part of the diesel soot consisted of onion-like structures made up of graphene layers. Typically 3-10 graphene layers make up the ''onion rings'', with the layer spacing decreasing as the number of layers increases. ROFA PM: Residual oil fly ash (ROFA) PM has been analyzed by a new approach that combines XAFS spectroscopy with selective leaching procedures. ROFA PM{sub 2.5} and PM{sub 2.5+} produced in combustion facilities at the U.S. EPA National Risk Management Research Laboratory (NRML) were analyzed by XAFS before and after leaching with water, acid (1N HCl), and pentane. Both water and acid leaching removed most of the metal sulfates, which were the dominant phase present for most metals (V, Ni, Zn, etc.). This allowed conclusive identification in the leaching residue of important secondary sulfide and oxide phases, including Ni sulfide, a toxic and carcinogenic phase observed in the leached PM{sub 2.5+} samples. Other significant secondary phases identified included V{sub 2}O{sub 4}, V sulfide, and NiFe{sub 2}O{sub 4}.

  7. Characterization of Fine Particulate Matter (PM) and Secondary PM Precursor Gases in the Mexico City Metropolitan Area

    DOE R&D Accomplishments [OSTI]

    Molina, Luisa T.; Volkamer, Rainer; de Foy, Benjamin; Lei, Wenfang; Zavala, Miguel; Velasco, Erik; Molina; Mario J.

    2008-10-31

    This project was one of three collaborating grants funded by DOE/ASP to characterize the fine particulate matter (PM) and secondary PM precursors in the Mexico City Metropolitan Area (MCMA) during the MILAGRO Campaign. The overall effort of MCMA-2006, one of the four components, focused on i) examination of the primary emissions of fine particles and precursor gases leading to photochemical production of atmospheric oxidants and secondary aerosol particles; ii) measurement and analysis of secondary oxidants and secondary fine PM production, with particular emphasis on secondary organic aerosol (SOA), and iii) evaluation of the photochemical and meteorological processes characteristic of the Mexico City Basin. The collaborative teams pursued the goals through three main tasks: i) analyses of fine PM and secondary PM precursor gaseous species data taken during the MCMA-2002/2003 campaigns and preparation of publications; ii) planning of the MILAGRO Campaign and deployment of the instrument around the MCMA; and iii) analysis of MCMA-2006 data and publication preparation.

  8. Evaluation of the Emission, Transport, and Deposition of Mercury and Fine Particulate Matter from Coal-Based Power Plants in the Ohio River Valley Region

    SciTech Connect (OSTI)

    Kevin Crist

    2008-12-31

    As stated in the proposal: Ohio University, in collaboration with CONSOL Energy, Advanced Technology Systems, Inc (ATS) and Atmospheric and Environmental Research, Inc. (AER) as subcontractors, evaluated the impact of emissions from coal-fired power plants in the Ohio River Valley region as they relate to the transport and deposition of mercury and associated fine particulate matter. This evaluation involved two interrelated areas of effort: ambient air monitoring and regional-scale modeling analysis. The scope of work for the ambient air monitoring included the deployment of a surface air monitoring (SAM) station in southeastern Ohio. The SAM station contains sampling equipment to collect and measure mercury (including speciated forms of mercury and wet and dry deposited mercury), particulate matter (PM) mass, PM composition, and gaseous criteria pollutants (CO, NOx, SO2, O3, etc.). Laboratory analyses of time-integrated samples were used to obtain chemical speciation of ambient PM composition and mercury in precipitation. Nearreal- time measurements were used to measure the ambient concentrations of PM mass and all gaseous species including Hg0 and RGM. Approximately 30 months of field data were collected at the SAM site to validate the proposed regional model simulations for episodic and seasonal model runs. The ambient air quality data provides mercury, and fine particulate matter data that can be used by Ohio Valley industries to assess performance on multi-pollutant control systems. The scope of work for the modeling analysis includes (1) development of updated inventories of mercury emissions from coal plants and other important sources in the modeled domain; (2) adapting an existing 3-D atmospheric chemical transport model to incorporate recent advancements in the understanding of mercury transformations in the atmosphere; (3) analyses of the flux of Hg0, RGM, and fine particulate matter in the different sectors of the study region to identify key transport mechanisms; (4) comparison of cross correlations between species from the model results to observations in order to evaluate characteristics of specific air masses associated with long-range transport from a specified source region; and (5) evaluation of the sensitivity of these correlations to emissions from regions along the transport path. This is accomplished by multiple model runs with emissions simulations switched on and off from the various source regions. To the greatest extent possible, model results were compared to field data collected at other air monitoring sites in the Ohio Valley region, operated independently of this project. These sites may include (1) the DOE National Energy Technologies Laboratorys monitoring site at its suburban Pittsburgh, PA facility; (2) sites in Pittsburgh (Lawrenceville) PA and Holbrook, PA operated by ATS; (3) sites in Steubenville, OH and Pittsburgh, PA operated by the USEPA and/or its contractors; and (4) sites operated by State or local air regulatory agencies. Field verification of model results and predictions provides critical information for the development of cost effective air pollution control strategies by the coal-fired power plants in the Ohio River Valley region.

  9. EVALUATION OF THE EMISSION, TRANSPORT, AND DEPOSITION OF MERCURY, FINE PARTICULATE MATTER, AND ARSENIC FROM COAL-BASED POWER PLANTS IN THE OHIO RIVER VALLEY REGION

    SciTech Connect (OSTI)

    Kevin Crist

    2004-10-02

    Ohio University, in collaboration with CONSOL Energy, Advanced Technology Systems, Inc (ATS) and Atmospheric and Environmental Research, Inc. (AER) as subcontractors, is evaluating the impact of emissions from coal-fired power plants in the Ohio River Valley region as they relate to the transport and deposition of mercury, arsenic, and associated fine particulate matter. This evaluation will involve two interrelated areas of effort: ambient air monitoring and regional-scale modeling analysis. The scope of work for the ambient air monitoring will include the deployment of a surface air monitoring (SAM) station in southeastern Ohio. The SAM station will contain sampling equipment to collect and measure mercury (including speciated forms of mercury and wet and dry deposited mercury), arsenic, particulate matter (PM) mass, PM composition, and gaseous criteria pollutants (CO, NOx, SO{sub 2}, O{sub 3}, etc.). Laboratory analysis of time-integrated samples will be used to obtain chemical speciation of ambient PM composition and mercury in precipitation. Near-real-time measurements will be used to measure the ambient concentrations of PM mass and all gaseous species including Hg{sup 0} and RGM. Approximately of 18 months of field data will be collected at the SAM site to validate the proposed regional model simulations for episodic and seasonal model runs. The ambient air quality data will also provide mercury, arsenic, and fine particulate matter data that can be used by Ohio Valley industries to assess performance on multi-pollutant control systems. The scope of work for the modeling analysis will include (1) development of updated inventories of mercury and arsenic emissions from coal plants and other important sources in the modeled domain; (2) adapting an existing 3-D atmospheric chemical transport model to incorporate recent advancements in the understanding of mercury transformations in the atmosphere; (3) analyses of the flux of Hg{sup 0}, RGM, arsenic, and fine particulate matter in the different sectors of the study region to identify key transport mechanisms; (4) comparison of cross correlations between species from the model results to observations in order to evaluate characteristics of specific air masses associated with long-range transport from a specified source region; and (5) evaluation of the sensitivity of these correlations to emissions from regions along the transport path. This will be accomplished by multiple model runs with emissions simulations switched on and off from the various source regions. To the greatest extent possible, model results will also be compared to field data collected at other air monitoring sites in the Ohio Valley region, operated independently of this project. These sites may include (1) the DOE National Energy Technologies Laboratory's monitoring site at its suburban Pittsburgh, PA facility; (2) sites in Pittsburgh (Lawrenceville) PA and Holbrook, PA operated by ATS; (3) sites in Steubenville, OH and Pittsburgh, PA operated by U.S. EPA and/or its contractors; and (4) sites operated by State or local air regulatory agencies. Field verification of model results and predictions will provide critical information for the development of cost effective air pollution control strategies by the coal-fired power plants in the Ohio River Valley region.

  10. Characterization of Fine Particulate Matter (PM) and Secondary PM Precursor Gases in the Mexico City Metropolitan Area

    SciTech Connect (OSTI)

    Molina, Luisa T.; Molina, Mario J.; Volkamer, Rainer; de Foy, Benjamin; Lei, Wenfang; Zavaka, Miguel; Velasco, Erik

    2008-10-31

    This project was one of three collaborating grants funded by DOE/ASP to characterize the fine particulate matter (PM) and secondary PM precursors in the Mexico City Metropolitan Area (MCMA) during the MILAGRO Campaign. The overall effort of MCMA-2006, one of the four components, focused on i) examination of the primary emissions of fine particles and precursor gases leading to photochemical production of atmospheric oxidants and secondary aerosol particles; ii) measurement and analysis of secondary oxidants and secondary fine PM production, with particular emphasis on secondary organic aerosol (SOA), and iii) evaluation of the photochemical and meteorological processes characteristic of the Mexico City Basin. The collaborative teams pursued the goals through three main tasks: i) analyses of fine PM and secondary PM precursor gaseous species data taken during the MCMA-2002/2003 campaigns and preparation of publications; ii) planning of the MILAGRO Campaign and deployment of the instrument around the MCMA; and iii) analysis of MCMA-2006 data and publication preparation. The measurement phase of the MILAGRO Campaign was successfully completed in March 2006 with excellent participation from the international scientific community and outstanding cooperation from the Mexican government agencies and institutions. The project reported here was led by the Massachusetts Institute of Technology/Molina Center for Energy and the Environment (MIT/MCE2) team and coordinated with DOE/ASP-funded collaborators at Aerodyne Research Inc., University of Colorado at Boulder and Montana State University. Currently 24 papers documenting the findings from this project have been published. The results from the project have improved significantly our understanding of the meteorological and photochemical processes contributing to the formation of ozone, secondary aerosols and other pollutants. Key findings from the MCMA-2003 include a vastly improved speciated emissions inventory from on-road vehicles: the MCMA motor vehicles produce abundant amounts of primary PM, elemental carbon, particle-bound polycyclic aromatic hydrocarbons, carbon monoxide and a wide range of air toxics; the feasibility of using eddy covariance techniques to measure fluxes of volatile organic compounds in an urban core and a valuable tool for validating local emissions inventory; a much better understanding of the sources and atmospheric loadings of volatile organic compounds; the first spectroscopic detection of glyoxal in the atmosphere; a unique analysis of the high fraction of ambient formaldehyde from primary emission sources; characterization of ozone formation and its sensitivity to VOCs and NOx; a much more extensive knowledge of the composition, size distribution and atmospheric mass loadings of both primary and secondary fine PM, including the fact that the rate of MCMA SOA production greatly exceeded that predicted by current atmospheric models; evaluations of significant errors that can arise from standard air quality monitors for O3 and NO2; and the implementation of an innovative Markov Chain Monte Carlo method for inorganic aerosol modeling as a powerful tool to analyze aerosol data and predict gas phase concentrations where these are unavailable. During the MILAGRO Campaign the collaborative team utilized a combination of central fixed sites and a mobile laboratory deployed throughout the MCMA to representative urban and boundary sites to measure trace gases and fine particles. Analysis of the extensive 2006 data sets has confirmed the key findings from MCMA-2002/2003; additionally MCMA-2006 provided more detailed gas and aerosol chemistry and wider regional scale coverage. Key results include an updated 2006 emissions inventory; extension of the flux system to measure fluxes of fine particles; better understanding of the sources and apportionment of aerosols, including contribution from biomass burning and industrial sources; a comprehensive evaluation of metal containing particles in a com

  11. DEVELOPMENT OF FINE PARTICULATE EMISSION FACTORS AND SPECIATION PROFILES FOR OIL AND GAS-FIRED COMBUSTION SYSTEMS

    SciTech Connect (OSTI)

    Glenn C. England

    2004-10-20

    In 1997, the United States Environmental Protection Agency (EPA) promulgated new National Ambient Air Quality Standards (NAAQS) for particulate matter, including for the first time particles with aerodynamic diameter smaller than 2.5 micrometers ({micro}m) referred to as PM2.5. PM2.5 in the atmosphere also contributes to reduced atmospheric visibility, which is the subject of existing rules for siting emission sources near Class 1 areas and new Regional Haze rules. There are few existing data regarding emissions and characteristics of fine aerosols from oil, gas and power generation industry combustion sources, and the information that is available is generally outdated and incomplete. Traditional stationary source air emission sampling methods tend to underestimate or overestimate the contribution of the source to ambient aerosols because they do not properly account for primary aerosol formation, which occurs after the gases leave the stack. Primary aerosol includes both filterable particles that are solid or liquid aerosols at stack temperature plus those that form as the stack gases cool through mixing and dilution processes in the plume downwind of the source. These deficiencies in the current methods can have significant impacts on regulatory decision-making. PM2.5 measurement issues were extensively reviewed by the American Petroleum Institute (API) (England et al., 1998), and it was concluded that dilution sampling techniques are more appropriate for obtaining a representative particulate matter sample from combustion systems for determining PM2.5 emission rate and chemical speciation. Dilution sampling is intended to collect aerosols including those that condense and/or react to form solid or liquid aerosols as the exhaust plume mixes and cools to near-ambient temperature immediately after the stack discharge. These techniques have been widely used in recent research studies. For example, Hildemann et al. (1994) and McDonald et al. (1998) used filtered ambient air to dilute the stack gas sample followed by 80-90 seconds residence time to allow aerosol formation and growth to stabilize prior to sample collection and analysis. More accurate and complete emissions data generated using the methods developed in this program will enable more accurate source-receptor and source apportionment analysis for PM2.5 National Ambient Air Quality Standards (NAAQS) implementation and streamline the environmental assessment of oil, gas and power production facilities. The overall goals of this program were to: (1) Develop improved dilution sampling technology and test methods for PM2.5 mass emissions and speciation measurements, and compare results obtained with dilution and traditional stationary source sampling methods. (2) Develop emission factors and speciation profiles for emissions of fine particulate matter, especially organic aerosols, for use in source-receptor and source apportionment analyses. (3) Identify and characterize PM2.5 precursor compound emissions that can be used in source-receptor and source apportionment analyses.

  12. Effects of fine particulate matter and its constituents on low birth weight among full-term infants in California

    SciTech Connect (OSTI)

    Basu, Rupa; Harris, Maria; Sie, Lillian; Malig, Brian; Broadwin, Rachel; Green, Rochelle

    2014-01-15

    Relationships between prenatal exposure to fine particles (PM{sub 2.5}) and birth weight have been observed previously. Few studies have investigated specific constituents of PM{sub 2.5}, which may identify sources and major contributors of risk. We examined the effects of trimester and full gestational prenatal exposures to PM{sub 2.5} mass and 23 PM{sub 2.5} constituents on birth weight among 646,296 term births in California between 2000 and 2006. We used linear and logistic regression models to assess associations between exposures and birth weight and risk of low birth weight (LBW; <2500 g), respectively. Models were adjusted for individual demographic characteristics, apparent temperature, month and year of birth, region, and socioeconomic indicators. Higher full gestational exposures to PM{sub 2.5} mass and several PM{sub 2.5} constituents were significantly associated with reductions in term birth weight. The largest reductions in birth weight were associated with exposure to vanadium, sulfur, sulfate, iron, elemental carbon, titanium, manganese, bromine, ammonium, zinc, and copper. Several of these PM{sub 2.5} constituents were associated with increased risk of term LBW. Reductions in birth weight were generally larger among younger mothers and varied by race/ethnicity. Exposure to specific constituents of PM{sub 2.5}, especially traffic-related particles, sulfur constituents, and metals, were associated with decreased birth weight in California. -- Highlights: Examine full gestational and trimester fine particle and its constituents on term birth weight. Fine particles and several of its constituents associated with birth weight reductions. Largest reductions for traffic-related particles, sulfur constituents, and metals. Greater birth weight reductions for younger mothers, and varied by race/ethnicity.

  13. Response of fine particulate matter to emission changes of oxides of nitrogen and anthropogenic volatile organic compounds in the eastern United States

    SciTech Connect (OSTI)

    Alexandra P. Tsimpidi; Vlassis A. Karydis; Spyros N. Pandis

    2008-11-15

    A three-dimensional chemical transport model (Particulate Matter Comprehensive Air Quality Model with Extensions) is used to investigate changes in fine particle (PM2.5) concentrations in response to 50% emissions changes of oxides of nitrogen (NOx) and anthropogenic volatile organic compounds (VOCs) during July 2001 and January 2002 in the eastern United States. The reduction of NOx emissions by 50% during the summer results in lower average oxidant levels and lowers PM2.5 (8% on average), mainly because of reductions of sulfate (9-11%), nitrate (45-58%), and ammonium (7-11%). The organic particulate matter (PM) slightly decreases in rural areas, whereas it increases in cities by a few percent when NOx is reduced. Reduction of NOx during winter causes an increase of the oxidant levels and a rather complicated response of the PM components, leading to small net changes. Sulfate increases (8-17%), nitrate decreases (18-42%), organic PM slightly increases, and ammonium either increases or decreases a little. The reduction of VOC emissions during the summer causes on average a small increase of the oxidant levels and a marginal increase in PM2.5. This small net change is due to increases in the inorganic components and decreases of the organic ones. Reduction of VOC emissions during winter results in a decrease of the oxidant levels and a 5-10% reduction of PM2.5 because of reductions in nitrate (4-19%), ammonium (4-10%), organic PM (12-14%), and small reductions in sulfate. Although sulfur dioxide (SO{sub 2}) reduction is the single most effective approach for sulfate control, the coupled decrease of SO{sub 2} and NOx emissions in both seasons is more effective in reducing total PM2.5 mass than the SO{sub 2} reduction alone. 34 refs., 7 figs., 1 tab.

  14. Requirements from Particulate Filter Technology for Commercial...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Hot Gas Filtration of Fine and Ultra fine Particles with Liquid Phase Sintered SiC Ceramic DPF Evaluation of Passive and Active Soot Filters for Removal of Particulate Emissions ...

  15. Advanced particulate matter control apparatus and methods

    DOE Patents [OSTI]

    Miller, Stanley J. (Grand Forks, ND); Zhuang, Ye (Grand Forks, ND); Almlie, Jay C. (East Grand Forks, MN)

    2012-01-10

    Apparatus and methods for collection and removal of particulate matter, including fine particulate matter, from a gas stream, comprising a unique combination of high collection efficiency and ultralow pressure drop across the filter. The apparatus and method utilize simultaneous electrostatic precipitation and membrane filtration of a particular pore size, wherein electrostatic collection and filtration occur on the same surface.

  16. Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposals Sign In About | Careers | Contact | Investors | bpa.gov Search Doing Business Expand Doing Business Customer Involvement Expand Customer Involvement Reports & Tools...

  17. Proposed

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposed Settlement for Hanford Cleanup U.S. Department of Energy ● Washington State Department of Ecology * U.S. Environmental Protection Agency What's this proposed settlement about? Public Comment The Tri-Party Agreement agencies want your feedback. The public comment period is from October 1 through December 11, 2009. These new commitments would address important activities that are needed to protect human health and the environment. The settlement will impose a new, enforceable and

  18. Advanced Hybrid Particulate Collector Project Management Plan

    SciTech Connect (OSTI)

    Miller, S.J.

    1995-11-01

    As the consumption of energy increases, its impact on ambient air quality has become a significant concern. Recent studies indicate that fine particles from coal combustion cause health problems as well as atmospheric visibility impairment. These problems are further compounded by the concentration of hazardous trace elements such as mercury, cadmium, selenium, and arsenic in fine particles. Therefore, a current need exists to develop superior, but economical, methods to control emissions of fine particles. Since most of the toxic metals present in coal will be in particulate form, a high level of fine- particle collection appears to be the best method of overall air toxics control. However, over 50% of mercury and a portion of selenium emissions are in vapor form and cannot be collected in particulate control devices. Therefore, this project will focus on developing technology not only to provide ultrahigh collection efficiency of particulate air toxic emissions, but also to capture vapor- phase trace metals such as mercury and selenium. Currently, the primary state-of-the-art technologies for particulate control are fabric filters (baghouses) and electrostatic precipitators (ESPs). However, they both have limitations that prevent them from achieving ultrahigh collection of fine particulate matter and vapor-phase trace metals. The objective of this project is to develop a highly reliable advanced hybrid particulate collector (AHPC) that can provide > 99.99 % particulate collection efficiency for all particle sizes between 0.01 and 50 14m, is applicable for use with all U.S. coals, and is cost-0443competitive with existing technologies. Phase I of the project is organized into three tasks: Task I - Project Management, Reporting, and Subcontract Consulting Task 2 - Modeling, Design, and Construction of 200-acfm AHPC Model Task 3 - Experimental Testing and Subcontract Consulting

  19. ADVANCED HYBRID PARTICULATE COLLECTOR

    SciTech Connect (OSTI)

    Ye Zhuang; Stanley J. Miller; Michelle R. Olderbak; Rich Gebert

    2001-12-01

    A new concept in particulate control, called an advanced hybrid particulate collector (AHPC), is being developed under funding from the U.S. Department of Energy. The AHPC combines the best features of electrostatic precipitators (ESPs) and baghouses in an entirely novel manner. The AHPC concept combines fabric filtration and electrostatic precipitation in the same housing, providing major synergism between the two methods, both in the particulate collection step and in transfer of dust to the hopper. The AHPC provides ultrahigh collection efficiency, overcoming the problem of excessive fine-particle emissions with conventional ESPs, and solves the problem of reentrainment and re-collection of dust in conventional baghouses. Phase I of the development effort consisted of design, construction, and testing of a 5.7-m{sup 3}/min (200-acfm) working AHPC model. Results from both 8-hr parametric tests and 100-hr proof-of-concept tests with two different coals demonstrated excellent operability and greater than 99.99% fine-particle collection efficiency. Since all of the developmental goals of Phase I were met, the approach was scaled up in Phase II to a size of 255 m{sup 3}/min (9000 acfm) (equivalent in size to 2.5 MW) and was installed on a slipstream at the Big Stone Power Plant. For Phase II, the AHPC at Big Stone Power Plant was operated continuously from late July 1999 until mid-December 1999. The Phase II results were highly successful in that ultrahigh particle collection efficiency was achieved, pressure drop was well controlled, and system operability was excellent. For Phase III, the AHPC was modified into a more compact configuration, and components were installed that were closer to what would be used in a full-scale commercial design. The modified AHPC was operated from April to July 2000. While operational results were acceptable during this time, inspection of bags in the summer of 2000 revealed some membrane damage to the fabric that appeared to be caused by electrical effects. Subsequently, extensive theoretical, bench-scale, and pilot-scale investigations were completed to find an approach to prevent bag damage without compromising AHPC performance. Results showed that the best bag protection and AHPC performance were achieved by using a perforated plate installed between the discharge electrodes and bags. This perforated-plate design was then installed in the 2.5-MW AHPC at Big Stone Power Plant in Big Stone City, South Dakota, and the AHPC was operated from March to June 2001. Results showed that the perforated-plate design solved the bag damage problem and offered even better AHPC performance than the previous design. All of the AHPC performance goals were met, including ultrahigh collection efficiency, high air-to-cloth ratio, reasonable pressure drop, and long bag-cleaning interval.

  20. Method for dispersing catalyst onto particulate material

    DOE Patents [OSTI]

    Utz, Bruce R. (Pittsburgh, PA); Cugini, Anthony V. (Pittsburgh, PA)

    1992-01-01

    A method for dispersing finely divided catalyst precursors onto the surface of coal or other particulate material includes the steps of forming a wet paste mixture of the particulate material and a liquid solution containing a dissolved transition metal salt, for instance a solution of ferric nitrate. The wet paste mixture is in a state of incipient wetness with all of this solution adsorbed onto the surfaces of the particulate material without the presence of free moisture. On adding a precipitating agent such as ammonia, a catalyst precursor such as hydrated iron oxide is deposited on the surfaces of the coal. The catalyst is activated by converting it to the sulfide form for the hydrogenation or direct liquefaction of the coal.

  1. Method of feeding particulate material to a fluidized bed

    DOE Patents [OSTI]

    Borio, Richard W. (Somers, CT); Goodstine, Stephen L. (Windsor, CT)

    1984-01-01

    A centrifugal spreader type feeder that supplies a mixture of particulate limestone and coal to the top of a fluidized bed reactor having a flow of air upward therethrough. Large particles of particulate matter are distributed over the upper surface of the bed to utilize the natural mixing within the bed, while fine particles are adapted to utilize an independent feeder that separates them from the large particles and injects them into the bed.

  2. Pitch based foam with particulate

    DOE Patents [OSTI]

    Klett, James W. (Knoxville, TN)

    2001-01-01

    A thermally conductive, pitch based foam composite having a particulate content. The particulate alters the mechanical characteristics of the foam without severely degrading the foam thermal conductivity. The composite is formed by mixing the particulate with pitch prior to foaming.

  3. Airborne particulate discriminator

    DOE Patents [OSTI]

    Creek, Kathryn Louise; Castro, Alonso; Gray, Perry Clayton

    2009-08-11

    A method and apparatus for rapid and accurate detection and discrimination of biological, radiological, and chemical particles in air. A suspect aerosol of the target particulates is treated with a taggant aerosol of ultrafine particulates. Coagulation of the taggant and target particles causes a change in fluorescent properties of the cloud, providing an indication of the presence of the target.

  4. Aqueour biphase extraction for processing of fine coal

    SciTech Connect (OSTI)

    Osseo-Asare, K.

    1997-07-23

    Ever-stringent environmental constraints dictate that future coal cleaning technologies be compatible with micron-size particles. For super-clean coal production, the degree of liberation needed to separate coal from mineral matter, including pyrite, requires grinding to 10 mm or below. In addition, large amounts of fine coal are discharged to refuse ponds because current coal cleaning technology cannot adequately treat such finely divided materials. This research program seeks to develop an advanced coal cleaning technology uniquely suited to micron-size particles, i.e., aqueous biphase extraction. This technique relies on the ability of an aqueous system consisting of a water-soluble organic polymer and an inorganic metal salt to separate into two immiscible aqueous phases. Differences in the hydrophobic/hydrophilic properties of particulates can then be exploited to effect selective transfers to either the upper polymer-rich phase, or the lower salt-rich phase. An experimental program is proposed involving phase diagram determination, phase separation rate measurements, partition measurements, and washing experiments.

  5. Investigation of Direct Injection Vehicle Particulate Matter...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Direct Injection Vehicle Particulate Matter Emissions Investigation of Direct Injection Vehicle Particulate Matter Emissions This study focuses primarily on particulate matter mass ...

  6. Fluidizing device for solid particulates

    DOE Patents [OSTI]

    Diebold, James P. (Lakewood, CO); Scahill, John W. (Golden, CO)

    1986-01-01

    A flexible whip or a system of whips with novel attachments is suspended in a hopper and is caused to impact against fibrous and irregularly shaped particulates in the hopper to fluidize the particulates and facilitate the flow of the particulates through the hopper. The invention provides for the flow of particulates at a substantially constant mass flow rate and uses a minimum of energy.

  7. Fluidizing device for solid particulates

    DOE Patents [OSTI]

    Diebold, J.P.; Scahill, J.W.

    1984-06-27

    A flexible whip or a system of whips with novel attachments is suspended in a hopper and is caused to impact against fibrous and irregularly shaped particulates in the hopper to fluidize the particulates and facilitate the flow of the particulates through the hopper. The invention provides for the flow of particulates at a substantially constant mass flow rate and uses a minimum of energy.

  8. Electrically-Assisted Diesel Particulate Filter Regeneration...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Documents & Publications Substrate Studies of an Electrically-Assisted Diesel Particulate Filter Electrically-Assisted Diesel Particulate Filter Regeneration...

  9. Advanced Particulate Filter Technologies for Direct Injection...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Particulate Filter Technologies for Direct Injection Gasoline Engine Applications Advanced Particulate Filter Technologies for Direct Injection Gasoline Engine Applications Specific ...

  10. Method for dispersing catalyst onto particulate material and product thereof

    DOE Patents [OSTI]

    Utz, Bruce R. (Pittsburgh, PA); Cugini, Anthony V. (Pittsburgh, PA)

    1992-01-01

    A method for dispersing finely divided catalyst precursors onto the surface of coal or other particulate material includes the steps of forming a wet paste mixture of the particulate material and a liquid solution containing a dissolved transition metal salt, for instance a solution of ferric nitrate. The wet paste mixture is in a state of incipient wetness with all of this solution adsorbed onto the surfaces of the particulate material without the presence of free moisture. On adding a precipitating agent such as ammonia, a catalyst precursor such as hydrated iron oxide is deposited on the surfaces of the coal. The catalyst is activated by converting it to the sulfide form for the hydrogenation or direct liquefaction of the coal.

  11. Void/particulate detector

    DOE Patents [OSTI]

    Claytor, T.N.; Karplus, H.B.

    1983-09-26

    Apparatus for detecting voids and particulates in a flowing stream of fluid contained in a pipe may comprise: (a) a transducer for transmitting an ultrasonic signal into the stream, coupled to the pipe at a first location; (b) a second transducer for detecting the through-transmission of said signal, coupled to the pipe at a second location; (c) a third transducer for detecting the back-scattering of said signal, coupled to the pipe at a third location, said third location being upstream from said first location; (d) circuit means for normalizing the back-scattered signal from said third transducer to the through-transmitted signal from said second transducer; which normalized signal provides a measure of the voids and particulates flowing past said first location.

  12. Rigid particulate matter sensor

    DOE Patents [OSTI]

    Hall, Matthew (Austin, TX)

    2011-02-22

    A sensor to detect particulate matter. The sensor includes a first rigid tube, a second rigid tube, a detection surface electrode, and a bias surface electrode. The second rigid tube is mounted substantially parallel to the first rigid tube. The detection surface electrode is disposed on an outer surface of the first rigid tube. The detection surface electrode is disposed to face the second rigid tube. The bias surface electrode is disposed on an outer surface of the second rigid tube. The bias surface electrode is disposed to face the detection surface electrode on the first rigid tube. An air gap exists between the detection surface electrode and the bias surface electrode to allow particulate matter within an exhaust stream to flow between the detection and bias surface electrodes.

  13. Regenerable particulate filter

    DOE Patents [OSTI]

    Stuecker, John N. (Albuquerque, NM); Cesarano, III, Joseph (Albuquerque, NM); Miller, James E. (Albuquerque, NM)

    2009-05-05

    A method of making a three-dimensional lattice structure, such as a filter used to remove particulates from a gas stream, where the physical lattice structure is designed utilizing software simulation from pre-defined mass transfer and flow characteristics and the designed lattice structure is fabricated using a free-form fabrication manufacturing technique, where the periodic lattice structure is comprised of individual geometric elements.

  14. Controlling formation fines at their sources to maintain well productivity

    SciTech Connect (OSTI)

    Nguyen, P.D.; Weaver, J.D.; Rickman, R.D.; Dusterhoft, R.G.; Parker, M.A.

    2007-05-15

    Migration of formation fines has been shown to cause production decline in many wells. Despite the availability of new downhole tools for use in well stimulation and completion, the ability to sustain desired production levels is often plagued with fines migration problems. The solution to this problem is appropriate treatment to mitigate fines migration at its source. This paper describes the use of an ultra-thin tackifying agent (UTTA) for stabilizing fines in high-rate producing or injection wells. This UTTA is applied as part of an initial prepad in fracturing or gravel-packing operations, as a remedial treatment, or as a post-treatment following acid fracturing or matrix acidizing treatments. The primary purpose of UTTA application is to immobilize formation fines so that they will not detach, migrate with flowing fluids, plug the pore channels, and reduce the flow path permeability. Results of laboratory testing indicate that the UTTA system is applicable to most types of formation fines, including coals, sandstones, and carbonates. Once injected into the formation matrix or proppant pack, the UTTA forms a thin film on formation surfaces, encapsulating the fines. Capillary action helps pull the tackifier into the contact points, fixing the particulate in place without plugging the pore throat. The UTTA does not require a shut-in time after its application. The thin film tackifier does not harden, but remains flexible, enhancing the ability of a formation to withstand stress cycling and allowing the formation to handle high shear stress during high flow rates.

  15. Apparatus for particulate matter analysis

    DOE Patents [OSTI]

    Gundel, Lara A.; Apte, Michael G.; Hansen, Anthony D.; Black, Douglas R.

    2007-01-30

    The apparatus described herein is a miniaturized system for particle exposure assessment (MSPEA) for the quantitative measurement and qualitative identification of particulate content in gases. The present invention utilizes a quartz crystal microbalance (QCM) or other mass-sensitive temperature compensated acoustic wave resonator for mass measurement. Detectors and probes and light sources are used in combination for the qualitative determination of particulate matter.

  16. Electrically heated particulate filter restart strategy

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Ament, Frank [Troy, MI

    2011-07-12

    A control system that controls regeneration of a particulate filter is provided. The system generally includes a propagation module that estimates a propagation status of combustion of particulate matter in the particulate filter. A regeneration module controls current to the particulate filter to re-initiate regeneration based on the propagation status.

  17. Electrical diesel particulate filter (DPF) regeneration

    DOE Patents [OSTI]

    Gonze, Eugene V; Ament, Frank

    2013-12-31

    An exhaust system that processes exhaust generated by an engine includes a diesel particulate filter (DPF) that is disposed downstream of the engine and that filters particulates from the exhaust. An electrical heater is disposed upstream of the DPF and selectively heats the exhaust to initiate combustion of the particulates within the exhaust as it passes therethrough. Heat generated by combustion of the particulates induces combustion of particulates within the DPF.

  18. Hydrocarbon-enhanced particulate filter regeneration via microwave ignition

    DOE Patents [OSTI]

    Gonze, Eugene V. (Pinckney, MI); Brown, David B. (Brighton, MI)

    2010-02-02

    A regeneration method for a particulate filter includes estimating a quantity of particulate matter trapped within the particulate filter, comparing the quantity of particulate matter to a predetermined quantity, heating at least a portion of the particulate filter to a combustion temperature of the particulate matter, and introducing hydrocarbon fuel to the particulate filter. The hydrocarbon fuel facilitates combustion of the particulate matter to regenerate the particulate filter.

  19. Pelletization of fine coals

    SciTech Connect (OSTI)

    Sastry, K.V.S.

    1991-09-01

    The present research project attempts to provide a basis to determine the pelletizability of fine coals, to ascertain the role of additives and binders and to establish a basis for binder selection. Currently, there are no established techniques for determining the quality of coal pellets. Our research is intended to develop a series of tests on coal pellets to measure their storage characteristics, transportability, ease of gasification and rate of combustion. Information developed from this research should be valuable for making knowledgeable decisions for on-time plant design, occasional binder selection and frequent process control during the pelletization of coal fines. During the last quarter, we continued the batch pelletization studies on Upper Freeport coal. The results as presented in that last quarterly report (April 1991) indicated that the surface conditions on the coal particle influenced the pelletizing growth rates. For example, a fresh (run of mine) sample of coal will display different pelletizing growth kinetics than a weathered sample of the same coal. Since coal is a heterogeneous material, the oxidized product of coal is equally variable. We found it to be logistically difficult to consistently produce large quantities of artificially oxidized coal for experimental purposes and as such we have used a naturally weathered coal. We have plans to oxidize coals under controlled oxidizing conditions and be able to establish their pelletizing behavior. The next phase of experiments were directed to study the effect of surface modification, introduced during the coal cleaning steps, on pelletizing kinetics. Accordingly, we initiated studies with two additives commonly used during the flotation of coal: dextrin (coal depressant) and dodecane (coal collector).

  20. Method for the Removal of Ultrafine Particulates from an Aqueous Suspension

    SciTech Connect (OSTI)

    Chaiko, David J.; Kopasz, John P.; Ellison, Adam J.G.

    1999-03-05

    A method of separating ultra-fine particulate from an aqueous suspension such as a process stream or a waste stream. The method involves the addition of alkali silicate and an organic gelling agent to a volume of liquid, from the respective process or waste stream, to form a gel. The gel then undergoes syneresis to remove water and soluble salts from the gel-containing the particulate, thus, forming a silica monolith. The silica monolith is then sintered to form a hard, nonporous waste form.

  1. Method for the removal of ultrafine particulates from an aqueous suspension

    DOE Patents [OSTI]

    Chaiko, David J. (Naperville, IL); Kopasz, John P. (Bolingbrook, IL); Ellison, Adam J. G. (Corning, NY)

    2000-01-01

    A method of separating ultra-fine particulates from an aqueous suspension such as a process stream or a waste stream. The method involves the addition of alkali silicate and an organic gelling agent to a volume of liquid, from the respective process or waste stream, to form a gel. The gel then undergoes syneresis to remove water and soluble salts from the gel containing the particulates, thus, forming a silica monolith. The silica monolith is then sintered to form a hard, nonporous waste form.

  2. Continuous fine ash depressurization system

    DOE Patents [OSTI]

    Liu, Guohai (Birmingham, AL); Peng, Wan Wang (Birmingham, AL); Vimalchand, Pannalal (Birmingham, AL)

    2011-11-29

    A system for depressurizing and cooling a high pressure, high temperature fine solid particles stream having entrained gas therein. In one aspect, the system has an apparatus for cooling the high pressure, high temperature fine solid particles stream having entrained gas therein and a pressure letdown device for depressurization by separating the cooled fine solid particles from a portion of the fine solid particles stream having entrained gas therein, resulting in a lower temperature, lower pressure outlet of solid particles for disposal or handling by downstream equipment.

  3. Ceramic Particulate Filters | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Ceramic Particulate Filters Ceramic Particulate Filters Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT). PDF icon deer07_yonushonis.pdf More Documents & Publications Durability of Diesel Engine Particulate Filters Durability of Diesel Engine Particulate Filters Durability of Diesel Engine

  4. Real-Time Particulate Mass Measurements Pre and Post Diesel Particulate

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Filters for LIght-Duty Diesel Vehicles | Department of Energy Particulate Mass Measurements Pre and Post Diesel Particulate Filters for LIght-Duty Diesel Vehicles Real-Time Particulate Mass Measurements Pre and Post Diesel Particulate Filters for LIght-Duty Diesel Vehicles PDF icon 2005_deer_anderson.pdf More Documents & Publications Advanced Radio Frequency-Based Sensors for Monitoring Diesel Particulate Filter Loading and Regeneration Real-Time Measurement of Diesel Trap Efficiency

  5. Particulate Generation in Tritium Systems

    Office of Environmental Management (EM)

    Particulate Generation in a Tritium System Paul Cloessner, PhD Laboratory Fellow Tritium Focus Group February 22, 2014 Outline * Description of Events * Analysis of Material * Sources of material contamination * System Restoration/Modifications * Contaminant Minimization and Control * Lessons Learned 2 An Unpleasant Surprise * Let down filter on compressor became plugged after 10 years of operation. * Tritium processing interrupted when other filters (flow orifices) became plugged approximately

  6. Hot Gas Filtration of Fine and Ultra fine Particles with Liquid...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Hot Gas Filtration of Fine and Ultra fine Particles with Liquid Phase Sintered SiC Ceramic DPF Hot Gas Filtration of Fine and Ultra fine Particles with Liquid Phase Sintered SiC Ceramic ...

  7. Diesel particulate filter with zoned resistive heater

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2011-03-08

    A diesel particulate filter assembly comprises a diesel particulate filter (DPF) and a heater assembly. The DPF filters a particulate from exhaust produced by an engine. The heater assembly has a first metallic layer that is applied to the DPF, a resistive layer that is applied to the first metallic layer, and a second metallic layer that is applied to the resistive layer. The second metallic layer is etched to form a plurality of zones.

  8. Zone heated diesel particulate filter electrical connection

    DOE Patents [OSTI]

    Gonze, Eugene V. (Pinckney, MI); Paratore, Jr., Michael J. (Howell, MI)

    2010-03-30

    An electrical connection system for a particulate filter is provided. The system includes: a particulate filter (PF) disposed within an outer shell wherein the PF is segmented into a plurality of heating zones; an outer mat disposed between the particulate filter and the outer shell; an electrical connector coupled to the outer shell of the PF; and a plurality of printed circuit connections that extend along the outer surface of the PF from the electrical connector to the plurality of heating zones.

  9. Trends in Particulate Nanostructure | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Particulate Nanostructure Trends in Particulate Nanostructure This work attempts to explain the differences in the physical characteristics (nanostructure) of the soot across platforms, heavy-duty and light-duty, and biodiesel blend level. PDF icon p-10_strzelec.pdf More Documents & Publications Investigation of NO2 Oxidation Kinetics and Burning Mode for Medium Duty Diesel Particulate: Contrasting O2 and NO2 Oxidation Load Expansion with Diesel/Gasoline RCCI for Improved Engine Efficiency

  10. Diesel Particulate Filtration (DPF) Technology: Success stories...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Program Durability of Diesel Engine Particulate Filters High Temperature Thermoelectric Materials Characterization for Automotive Waste Heat Recovery: Success Stories from the...

  11. Electrically-Assisted Diesel Particulate Filter Regeneration...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    PDF icon pm041lance2011p.pdf More Documents & Publications Electrically-Assisted Diesel Particulate Filter Regeneration Substrate Studies of an Electrically-Assisted Diesel...

  12. Electrically heated particulate filter embedded heater design

    DOE Patents [OSTI]

    Gonze, Eugene V.; Chapman, Mark R.

    2014-07-01

    An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine and wherein an upstream surface of the particulate filter includes machined grooves. A grid of electrically resistive material is inserted into the machined grooves of the exterior upstream surface of the PF and selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF.

  13. Electrically heated particulate filter using catalyst striping

    DOE Patents [OSTI]

    Gonze, Eugene V; Paratore, Jr., Michael J; Ament, Frank

    2013-07-16

    An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine. A grid of electrically resistive material is applied to an exterior upstream surface of the PF and selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF. A catalyst coating is applied to the PF that increases a temperature of the combustion of the particulates within the PF.

  14. Particulate residue separators for harvesting devices

    DOE Patents [OSTI]

    Hoskinson, Reed L.; Kenney, Kevin L.; Wright, Christopher T.; Hess, John R.

    2010-06-29

    A particulate residue separator and a method for separating a particulate residue stream may include a plenum borne by a harvesting device, and have a first, intake end and a second, exhaust end; first and second particulate residue air streams which are formed by the harvesting device and which travel, at least in part, along the plenum and in a direction of the second, exhaust end; and a baffle assembly which is located in partially occluding relation relative to the plenum, and which substantially separates the first and second particulate residue air streams.

  15. Methods of separating particulate residue streams

    DOE Patents [OSTI]

    Hoskinson, Reed L. (Rigby, ID); Kenney, Kevin L. (Idaho Falls, ID); Wright, Christopher T. (Idaho Falls, ID); Hess, J. Richard (Idaho Falls, ID)

    2011-04-05

    A particulate residue separator and a method for separating a particulate residue stream may include an air plenum borne by a harvesting device, and have a first, intake end and a second, exhaust end; first and second particulate residue air streams that are formed by the harvesting device and that travel, at least in part, along the air plenum and in a direction of the second, exhaust end; and a baffle assembly that is located in partially occluding relation relative to the air plenum and that substantially separates the first and second particulate residue air streams.

  16. Preserving Diesel Exhaust Ultrafine (Nano-) Particulate Structure...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Exhaust Dispersion in a Phospholipid Lung Surfactant In Vitro Genotoxicity of Gasoline and Diesel Engine Vehicle Exhaust Particulate and Semi-Volatile Organic Compound Materials

  17. Pleated Ceramic Fiber Diesel Particulate Filter | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Pleated Ceramic Fiber Diesel Particulate Filter Pleated Ceramic Fiber Diesel Particulate Filter 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_nixdorf.pdf More Documents & Publications Versatile Diesel Particulate Filter Cartridge Any Size, Any Shape Ultra-Lite Diesel Particulate Filter Cartridge for Reduced Regeneration Time and Fuel Consumption Expanded Capacity Microwave-Cleaned Diesel Particulate Filter

  18. Catalytic fabric filtration for simultaneous NO{sub x} and particulate control. Final report

    SciTech Connect (OSTI)

    Weber, G.F.; Dunham, G.E.; Laudal, D.L.; Ness, S.R.; Schelkoph, G.L.

    1994-08-01

    The overall objective of the project proposed was to evaluate the catalyst-coated fabric filter concept for effective control of NO{sub 2} and particulate emissions simultaneously. General goals included demonstrating high removal efficiency of NO{sub x} and particulate matter, acceptable bag and catalyst life, and that process economics show a significant cost savings in comparison to a commercial SCR process and conventional particulate control. Specific goals included the following: reduce NO{sub x} emissions to 60 ppM or less; demonstrate particulate removal efficiency of >99.5%; demonstrate a bag/catalyst life of >1 year; Control ammonia slip to <25 ppM; show that catalytic fabric filtration can achieve a 50% cost savings over conventional fabric filtration and SCR control technology; determine compatibility with S0{sub 2} removal systems; and show that the concept results in a nonhazardous waste product.

  19. RAPIDD Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    by ALS management, appropriate to the proposal. Rapid Access Proposals (RA) A proportion of beam time on some beamlines is reserved to provide rapid access for simple,...

  20. Electrically heated particulate filter propagation support methods and systems

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Ament, Frank [Troy, MI

    2011-06-07

    A control system that controls regeneration of a particulate filter is provided. The system generally includes a regeneration module that controls current to the particulate filter to initiate combustion of particulate matter in the particulate filter. A propagation module estimates a propagation status of the combustion of the particulate matter based on a combustion temperature. A temperature adjustment module controls the combustion temperature by selectively increasing a temperature of exhaust that passes through the particulate filter.

  1. Radiant zone heated particulate filter

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2011-12-27

    A system includes a particulate matter (PM) filter including an upstream end for receiving exhaust gas and a downstream end. A radiant zoned heater includes N zones, where N is an integer greater than one, wherein each of the N zones includes M sub-zones, where M is an integer greater than or equal to one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones, restricts exhaust gas flow in a portion of the PM filter that corresponds to the selected one of the N zones, and deactivates non-selected ones of the N zones.

  2. Development of Advanced Diesel Particulate Filtration (DPF) Systems...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Particulate Filtration (DPF) Systems (ANLCorningCaterpillar CRADA) PDF icon ace22lee.pdf More Documents & Publications Development of Advanced Diesel Particulate Filtration...

  3. Mesoscale Simulations of Particulate Flows with Parallel Distributed...

    Office of Scientific and Technical Information (OSTI)

    Title: Mesoscale Simulations of Particulate Flows with Parallel Distributed Lagrange Multiplier Technique Fluid particulate flows are common phenomena in nature and industry. ...

  4. A New CFD Model for understanding and Managing Diesel Particulate...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    CFD Model for understanding and Managing Diesel Particulate Filter Regeneration A New CFD Model for understanding and Managing Diesel Particulate Filter Regeneration PDF icon...

  5. New Cordierite Diesel Particulate Filters for Catalyzed and Non...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Cordierite Diesel Particulate Filters for Catalyzed and Non-Catalyzed Applications New Cordierite Diesel Particulate Filters for Catalyzed and Non-Catalyzed Applications 2003 DEER...

  6. Durability of Diesel Particulate Filters - Bench Studies on Cordierite...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Particulate Filters - Bench Studies on Cordierite Filters Durability of Diesel Particulate Filters - Bench Studies on Cordierite Filters Presentation given at DEER 2006, August...

  7. Emissions and Durability of Underground Mining Diesel Particulate...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    More Documents & Publications Testing an Active Diesel Particulate Filter on a 2-Cycle Marine Engine Ceramic Particulate Filters Development of an Accelerated Ash-Loading Protocol ...

  8. Requirements-Driven Diesel Catalyzed Particulate Trap Design...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Requirements-Driven Diesel Catalyzed Particulate Trap Design and Optimization Requirements-Driven Diesel Catalyzed Particulate Trap Design and Optimization 2005 Diesel Engine...

  9. Characterization of Particulate Emissions from GDI Engine Combustion...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Particulate Emissions from GDI Engine Combustion with Alcohol-blended Fuels Characterization of Particulate Emissions from GDI Engine Combustion with Alcohol-blended Fuels Analysis ...

  10. 2007 Diesel Particulate Measurement Research (E-66 Project) ...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Diesel Particulate Measurement Research (E-66 Project) 2007 Diesel Particulate Measurement Research (E-66 Project) 2004 Diesel Engine Emissions Reduction (DEER) Conference:...

  11. Reduction of Transient Particulate Matter Spikes with Decision...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Transient Particulate Matter Spikes with Decision Tree Based Control Reduction of Transient Particulate Matter Spikes with Decision Tree Based Control Using a non-parametric ...

  12. Predicting Thermal Stress in Diesel Particulate Filters | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Thermal Stress in Diesel Particulate Filters Predicting Thermal Stress in Diesel Particulate Filters 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Corning...

  13. Failure Stress and Apparent Elastic Modulus of Diesel Particulate...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Failure Stress and Apparent Elastic Modulus of Diesel Particulate Filter Ceramics Failure Stress and Apparent Elastic Modulus of Diesel Particulate Filter Ceramics Three...

  14. Evaluation of a Partial Flow Dilution System for Transient Particulate...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    a Partial Flow Dilution System for Transient Particulate Matter Emissions Evaluation of a Partial Flow Dilution System for Transient Particulate Matter Emissions A commercially...

  15. Characterization of Pre-Commercial Gasoline Engine Particulates...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Pre-Commercial Gasoline Engine Particulates Through Advanced Aerosol Methods Characterization of Pre-Commercial Gasoline Engine Particulates Through Advanced Aerosol Methods...

  16. Local Soot Loading Distribution in Cordierite Diesel Particulate...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Local Soot Loading Distribution in Cordierite Diesel Particulate Filters by Dynamic Neutron Radiography Local Soot Loading Distribution in Cordierite Diesel Particulate Filters by...

  17. Electrically heated particulate filter enhanced ignition strategy

    DOE Patents [OSTI]

    Gonze, Eugene V; Paratore, Jr., Michael J

    2012-10-23

    An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine. A grid of electrically resistive material is applied to an exterior upstream surface of the PF and selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF. A catalyst coating applied to at least one of the PF and the grid. A control module estimates a temperature of the grid and controls the engine to produce a desired exhaust product to increase the temperature of the grid.

  18. Compressive behavior of fine sand.

    SciTech Connect (OSTI)

    Martin, Bradley E.; Kabir, Md. E.; Song, Bo; Chen, Wayne

    2010-04-01

    The compressive mechanical response of fine sand is experimentally investigated. The strain rate, initial density, stress state, and moisture level are systematically varied. A Kolsky bar was modified to obtain uniaxial and triaxial compressive response at high strain rates. A controlled loading pulse allows the specimen to acquire stress equilibrium and constant strain-rates. The results show that the compressive response of the fine sand is not sensitive to strain rate under the loading conditions in this study, but significantly dependent on the moisture content, initial density and lateral confinement. Partially saturated sand is more compliant than dry sand. Similar trends were reported in the quasi-static regime for experiments conducted at comparable specimen conditions. The sand becomes stiffer as initial density and/or confinement pressure increases. The sand particle size become smaller after hydrostatic pressure and further smaller after dynamic axial loading.

  19. RAPIDD Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    RAPIDD Proposals Print The combined process for Rapid Access Proposals, Industry, and Director's Discretion (RAPIDD) beam time accommodates users who require limited or rapid access to ALS beam time. There are a number of proposal types that are available on a variety of beamlines, as described below. Log in to ALSHub to submit a RAPIDD proposal. The RAPIDD process is not suitable for users requiring significant beam time for an extended program of research or those wanting to perform complex

  20. Dense, finely, grained composite materials

    DOE Patents [OSTI]

    Dunmead, Stephen D. (Davis, CA); Holt, Joseph B. (San Jose, CA); Kingman, Donald D. (Danville, CA); Munir, Zuhair A. (Davis, CA)

    1990-01-01

    Dense, finely grained composite materials comprising one or more ceramic phase or phase and one or more metallic and/or intermetallic phase or phases are produced by combustion synthesis. Spherical ceramic grains are homogeneously dispersed within the matrix. Methods are provided, which include the step of applying mechanical pressure during or immediately after ignition, by which the microstructures in the resulting composites can be controllably selected.

  1. Neutron Imaging of Diesel Particulate Filters | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Diesel Particulate Filters Neutron Imaging of Diesel Particulate Filters Neutron computed tomography shows soot and ash loading in a cordierite diesel particulate filter PDF icon deer09_bilheux.pdf More Documents & Publications Neutron Imaging of Advanced Engine Technologies Neutron Imaging of Advanced Engine Technologies Development of an Accelerated Ash-Loading Protocol for Diesel Particulate Filters

  2. Effects of Advanced Combustion Technologies on Particulate Matter Emissions

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Characteristics | Department of Energy Advanced Combustion Technologies on Particulate Matter Emissions Characteristics Effects of Advanced Combustion Technologies on Particulate Matter Emissions Characteristics Findings of important implications for aftertreatment devices such as EGR coolers and diesel particulate filters, of physico-chemical changes observed in particulate matter during advanced combustion. PDF icon deer08_storey.pdf More Documents & Publications Measurement and

  3. Particle Number & Particulate Mass Emissions Measurements on...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    on a 'Euro VI' Heavy-duty Engine using the PMP Methodologies Particle Number & Particulate Mass Emissions Measurements on a 'Euro VI' Heavy-duty Engine using the PMP ...

  4. Method of producing particulate-reinforced composites and composites produced thereby

    DOE Patents [OSTI]

    Han, Qingyou; Liu, Zhiwei

    2013-12-24

    A process for producing particle-reinforced composite materials through utilization of an in situ reaction to produce a uniform dispersion of a fine particulate reinforcement phase. The process includes forming a melt of a first material, and then introducing particles of a second material into the melt and subjecting the melt to high-intensity acoustic vibration. A chemical reaction initiates between the first and second materials to produce reaction products in the melt. The reaction products comprise a solid particulate phase, and the high-intensity acoustic vibration fragments and/or separates the reaction products into solid particles that are dispersed in the melt and are smaller than the particles of the second material. Also encompassed are particle-reinforced composite materials produced by such a process.

  5. Method of producing particulate-reinforced composites and composties produced thereby

    DOE Patents [OSTI]

    Han, Qingyou; Liu, Zhiwei

    2013-12-24

    A process for producing particle-reinforced composite materials through utilization of an in situ reaction to produce a uniform dispersion of a fine particulate reinforcement phase. The process includes forming a melt of a first material, and then introducing particles of a second material into the melt and subjecting the melt to high-intenisty acoustic vibration. A chemical reaction initiates between the first and second materials to produce reaction products in the melt. The reaciton products comprise a solide particulate phase, and the high-intensity acoustic vibration fragments and/or separates the reaction products into solid particles that are dispersed in the melt and are smaller than the particles of the second material. Also encompassed are particles-reinforced composite materials produced by such a process.

  6. Method of producing particulate-reinforced composites and composites produced thereby

    DOE Patents [OSTI]

    Han, Qingyou; Liu, Zhiwei

    2015-12-29

    A process for producing particle-reinforced composite materials through utilization of an in situ reaction to produce a uniform dispersion of a fine particulate reinforcement phase. The process includes forming a melt of a first material, and then introducing particles of a second material into the melt and subjecting the melt to high-intensity acoustic vibration. A chemical reaction initiates between the first and second materials to produce reaction products in the melt. The reaction products comprise a solid particulate phase, and the high-intensity acoustic vibration fragments and/or separates the reaction products into solid particles that are dispersed in the melt and are smaller than the particles of the second material. Also encompassed are particle-reinforced composite materials produced by such a process.

  7. Requirements from Particulate Filter Technology for Commercial Vehicles:

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Sintered Metal Particulate Filter Opens a New Dimension of Performance | Department of Energy from Particulate Filter Technology for Commercial Vehicles: Sintered Metal Particulate Filter Opens a New Dimension of Performance Requirements from Particulate Filter Technology for Commercial Vehicles: Sintered Metal Particulate Filter Opens a New Dimension of Performance 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_biddinger.pdf More

  8. Expanded Capacity Microwave-Cleaned Diesel Particulate Filter | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy Expanded Capacity Microwave-Cleaned Diesel Particulate Filter Expanded Capacity Microwave-Cleaned Diesel Particulate Filter 2002 DEER Conference Presentation: Industrial Ceramic Solutions, LLC PDF icon 2002_deer_nixdorf.pdf More Documents & Publications Ultra-Lite Diesel Particulate Filter Cartridge for Reduced Regeneration Time and Fuel Consumption Pleated Ceramic Fiber Diesel Particulate Filter Versatile Diesel Particulate Filter Cartridge Any Size, Any Shape

  9. Regenerative process and system for the simultaneous removal of particulates and the oxides of sulfur and nitrogen from a gas stream

    DOE Patents [OSTI]

    Cohen, M.R.; Gal, E.

    1993-04-13

    A process and system are described for simultaneously removing from a gaseous mixture, sulfur oxides by means of a solid sulfur oxide acceptor on a porous carrier, nitrogen oxides by means of ammonia gas and particulate matter by means of filtration and for the regeneration of loaded solid sulfur oxide acceptor. Finely-divided solid sulfur oxide acceptor is entrained in a gaseous mixture to deplete sulfur oxides from the gaseous mixture, the finely-divided solid sulfur oxide acceptor being dispersed on a porous carrier material having a particle size up to about 200 microns. In the process, the gaseous mixture is optionally pre-filtered to remove particulate matter and thereafter finely-divided solid sulfur oxide acceptor is injected into the gaseous mixture.

  10. Regenerative process and system for the simultaneous removal of particulates and the oxides of sulfur and nitrogen from a gas stream

    DOE Patents [OSTI]

    Cohen, Mitchell R. (Troy, NY); Gal, Eli (Lititz, PA)

    1993-01-01

    A process and system for simultaneously removing from a gaseous mixture, sulfur oxides by means of a solid sulfur oxide acceptor on a porous carrier, nitrogen oxides by means of ammonia gas and particulate matter by means of filtration and for the regeneration of loaded solid sulfur oxide acceptor. Finely-divided solid sulfur oxide acceptor is entrained in a gaseous mixture to deplete sulfur oxides from the gaseous mixture, the finely-divided solid sulfur oxide acceptor being dispersed on a porous carrier material having a particle size up to about 200 microns. In the process, the gaseous mixture is optionally pre-filtered to remove particulate matter and thereafter finely-divided solid sulfur oxide acceptor is injected into the gaseous The government of the United States of America has rights in this invention pursuant to Contract No. DE-AC21-88MC 23174 awarded by the U.S. Department of Energy.

  11. Fine Structure of Dark Energy and New Physics

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Jejjala, Vishnu; Kavic, Michael; Minic, Djordje

    2007-01-01

    Following our recent work on the cosmological constant problem, in this letter we make a specific proposal regarding the fine structure (i.e., the spectrum) of dark energy. The proposal is motivated by a deep analogy between the blackbody radiation problem, which led to the development of quantum theory, and the cosmological constant problem, for which we have recently argued calls for a conceptual extension of the quantum theory. We argue that the fine structure of dark energy is governed by a Wien distribution, indicating its dual quantum and classical nature. We discuss observational consequences of such a picture of darkmore »energy and constrain the distribution function.« less

  12. Particulate matter pollution in Mexico City

    SciTech Connect (OSTI)

    Vega R, E.; Mora P, V.; Mugica A, V.

    1998-12-31

    The levels of particulate matter are of concern since they may induce severe effects on public health and is the second atmospheric pollution problem in Mexico City. Another noticeable effect in large cities attributable to particulate matter, is the deterioration of visibility. In this paper the analysis of the data of TSP and PM10 during 1988 to 1996 is presented. The seasonal variation of particulate matter, the typical ratios of PM10/TSP and relationships of the two variables were determined. It was found that PM10 concentrations show an important tendency to decrease during this period, due to some control strategies, although this is not the case for TSP. The monthly trend exhibits a clear relationship with the dry (October through April) and wet (May through September) seasons. The particulate matter concentrations are lower during the wet season. The hourly behavior shows that the highest concentrations are correlated with the traffic rush hours. The most TSP polluted area was the northeast, meanwhile the southeast is the most PM10 polluted area. There is a clear evidence of the particulate matter transportation from these areas to other sites of the City.

  13. Proposal Process

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposal Process Network R&D Software-Defined Networking (SDN) Experimental Network Testbeds 100G SDN Testbed Testbed Description Proposal Process Terms and Conditions Dark Fiber Testbed Test Circuit Service Testbed Results Current Testbed Research Previous Testbed Research Performance (perfSONAR) Software & Tools Development Data for Researchers Partnerships Publications Workshops Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638 (Inside US) 1 510-486-7600

  14. Proposed Rules

    National Nuclear Security Administration (NNSA)

    4414 Federal Register / Vol. 78, No. 209 / Tuesday, October 29, 2013 / Proposed Rules NRC about the availability of information for the proposed Waste Confidence rule and DGEIS. You may access publicly available information related to these documents by any of the following methods: * Federal Rulemaking Web Site: Go to http://www.regulations.gov and search for Docket ID NRC-2012-0246. * NRC's Waste Confidence Web site: Go to http://www.nrc.gov/waste/spent- fuel-storage/wcd.html. * NRC's

  15. Method of dispersing particulate aerosol tracer

    DOE Patents [OSTI]

    O'Holleran, Thomas P. (Belleville, MI)

    1988-01-01

    A particulate aerosol tracer which comprises a particulate carrier of sheet silicate composition having a particle size up to one micron, and a cationic dopant chemically absorbed in solid solution in the carrier. The carrier is preferably selected from the group consisting of natural mineral clays such as bentonite, and the dopant is selected from the group consisting of rare earth elements and transition elements. The tracers are dispersed by forming an aqueous salt solution with the dopant present as cations, dispersing the carriers in the solution, and then atomizing the solution under heat sufficient to superheat the solution droplets at a level sufficient to prevent reagglomeration of the carrier particles.

  16. Particulate hot gas stream cleanup technical issues

    SciTech Connect (OSTI)

    Pontius, D.H.; Snyder, T.R.

    1999-09-30

    The analyses of hot gas stream cleanup particulate samples and descriptions of filter performance studied under this contract were designed to address problems with filter operation that have been linked to characteristics of the collected particulate matter. One objective of this work was to generate an interactive, computerized data bank of the key physical and chemical characteristics of ash and char collected from operating advanced particle filters and to relate these characteristics to the operation and performance of these filters. The interactive data bank summarizes analyses of over 160 ash and char samples from fifteen pressurized fluidized-bed combustion and gasification facilities utilizing high-temperature, high pressure barrier filters.

  17. Particulate matter sensor with a heater

    DOE Patents [OSTI]

    Hall, Matthew (Austin, TX)

    2011-08-16

    An apparatus to detect particulate matter. The apparatus includes a sensor electrode, a shroud, and a heater. The electrode measures a chemical composition within an exhaust stream. The shroud surrounds at least a portion of the sensor electrode, exclusive of a distal end of the sensor electrode exposed to the exhaust stream. The shroud defines an air gap between the sensor electrode and the shroud and an opening toward the distal end of the sensor electrode. The heater is mounted relative to the sensor electrode. The heater burns off particulate matter in the air gap between the sensor electrode and the shroud.

  18. Unsolicited Proposals

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2002-02-27

    The order sets forth Department of Energy (DOE) requirements and responsibilities for the receipt, processing, and review of unsolicited proposals (USPs). To ensure that those submitting USPs are notified in a timely manner of the status (e.g., pending, accepted for funding, or declined) of their Supersedes DOE O 542.2. Certified 12-28-06.

  19. Partial-Flow Diesel Particulate Filter of Sintered Metal Fiber...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Partial-Flow Diesel Particulate Filter of Sintered Metal Fiber Fleece Partial-Flow Diesel Particulate Filter of Sintered Metal Fiber Fleece Poster presented at the 16th Directions ...

  20. Expanded Capacity Microwave-Cleaned Diesel Particulate Filter...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    DEER Conference Presentation: Industrial Ceramic Solutions, LLC PDF icon ... Time and Fuel Consumption Pleated Ceramic Fiber Diesel Particulate Filter Versatile ...

  1. Investigation of Direct Injection Vehicle Particulate Matter Emissions |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Direct Injection Vehicle Particulate Matter Emissions Investigation of Direct Injection Vehicle Particulate Matter Emissions This study focuses primarily on particulate matter mass analysis of a gasoline direct injection engine in a test cell with a chassis dynamometer. PDF icon p-10_gibbs.pdf More Documents & Publications On-Road PM Mass Emission Measured with OBS-TRPM Performance of the Low-Efficiency Diesel Particulate Filter for Diesel PM Reduction Reducing the

  2. Advanced Particulate Filter Technologies for Direct Injection Gasoline

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Engine Applications | Department of Energy Particulate Filter Technologies for Direct Injection Gasoline Engine Applications Advanced Particulate Filter Technologies for Direct Injection Gasoline Engine Applications Specific designs and material properties have to be developed for gasoline particulate filters based on the different engine and exhaust gas characteristic of gasoline engines compared to diesel engines, e.g., generally lower levels of engine-out particulate emissions or higher

  3. Characterization of Pre-Commercial Gasoline Engine Particulates Through

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Advanced Aerosol Methods | Department of Energy Pre-Commercial Gasoline Engine Particulates Through Advanced Aerosol Methods Characterization of Pre-Commercial Gasoline Engine Particulates Through Advanced Aerosol Methods Advanced aerosol analysis methods were used to examine particulates from single cylinder test engines running on gasoline and ethanol blends. PDF icon deer12_zelenyuk.pdf More Documents & Publications Fuel-Neutral Studies of Particulate Matter Transport Emissions

  4. Development of Advanced Particulate Filters | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Particulate Filters Development of Advanced Particulate Filters 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ace024_lee_2012_o.pdf More Documents & Publications Particulate Emissions Control by Advanced Filtration Systems or GDI Engines Diesel Particulate Filter: A Success for Faurecia Exhaust Systems Uncovering Fundamental Ash-Formation Mechanisms and Potential Means to Control the Impact on DPF

  5. Update on 2007 Diesel Particulate Measurement Research | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy 2007 Diesel Particulate Measurement Research Update on 2007 Diesel Particulate Measurement Research 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_shimpi.pdf More Documents & Publications Real-Time Measurement of Diesel Trap Efficiency Mass Correlation of Engine Emissions with Spectral Instruments Real-Time Particulate Mass Measurements Pre and Post Diesel Particulate Filters for LIght-Duty Diesel Vehicles

  6. Versatile Diesel Particulate Filter Cartridge Any Size, Any Shape |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Versatile Diesel Particulate Filter Cartridge Any Size, Any Shape Versatile Diesel Particulate Filter Cartridge Any Size, Any Shape Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. PDF icon 2006_deer_nixdorf.pdf More Documents & Publications Pleated Ceramic Fiber Diesel Particulate Filter Ultra-Lite Diesel Particulate Filter Cartridge for Reduced

  7. Particulate Generation in a Tritium System | Department of Energy

    Office of Environmental Management (EM)

    Particulate Generation in a Tritium System Particulate Generation in a Tritium System Presentation from the 33rd Tritium Focus Group Meeting held in Aiken, South Carolina on April 22-24, 2014. PDF icon Particulate Generation in a Tritium System More Documents & Publications Fuel Injector Holes Fuel Injector Holes Fuel injector Holes (Fabrication of Micro-Orifices for Fuel Injectors)

  8. Electrically heated particulate filter preparation methods and systems

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2012-01-31

    A control system that controls regeneration of a particulate filter is provided. The system generally includes a fuel control module that controls injection of fuel into exhaust that passes through the particulate filter. A regeneration module controls current to the particulate filter to initiate regeneration after the fuel has been injected into the exhaust.

  9. Development of Advanced Diesel Particulate Filtration (DPF) Systems

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    (ANL/Corning/Caterpillar CRADA) | Department of Energy (ANL/Corning/Caterpillar CRADA) Development of Advanced Diesel Particulate Filtration (DPF) Systems (ANL/Corning/Caterpillar CRADA) PDF icon ace_22_lee.pdf More Documents & Publications Development of Advanced Diesel Particulate Filtration (DPF) Systems Development of Advanced Diesel Particulate Filtration (DPF) Systems

  10. Development of Advanced Diesel Particulate Filtration (DPF) Systems |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy 1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon ace024_lee_2011_o.pdf More Documents & Publications Development of Advanced Particulate Filters Development of Advanced Diesel Particulate Filtration (DPF) Systems Development of Advanced Diesel Particulate Filtration (DPF) Systems (ANL/Corning/Caterpillar CRADA)

  11. Electrically-Assisted Diesel Particulate Filter Regeneration | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy 2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon pm041_lance_2012_o.pdf More Documents & Publications Substrate Studies of an Electrically-Assisted Diesel Particulate Filter Electrically-Assisted Diesel Particulate Filter Regeneration Durability of Diesel Engine Particulate Filters (Agreement ID:10461)

  12. A Proposal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    A Proposal for a New Experiment Using the Booster and NuMI Neutrino Beamlines: MicroBooNE October 15, 2007 H. Chen, J. Farrell, F. Lanni, D. Lissauer, D. Makowiecki, J. Mead, V. Radeka, S. Rescia, J. Sondericker, B. Yu Brookhaven National Laboratory, Upton, NY L. Bugel, J. M. Conrad, V. Nguyen, M. Shaevitz, W. Willis ‡ Columbia University, New York, NY C. James, S. Pordes, G. Rameika Fermi National Accelerator Laboratory, Batavia, IL C. Bromberg, D. Edmunds Michigan State University, Lansing,

  13. Analysis of fine structure in the nuclear continuum

    SciTech Connect (OSTI)

    Shevchenko, A.; Kalmykov, Y.; Neumann-Cosel, P. von; Ponomarev, V. Yu.; Richter, A.; Wambach, J.; Carter, J.; Usman, I.; Cooper, G. R. J.; Fearick, R. W.

    2008-02-15

    Fine structure has been shown to be a general phenomenon of nuclear giant resonances of different multipolarities over a wide mass range. In this article we assess various techniques that have been proposed to extract quantitative information from the fine structure in terms of characteristic scales. These include the so-called local scaling dimension, the entropy index method, Fourier analysis, and continuous and discrete wavelet transforms. As an example, results on the isoscalar giant quadrupole resonance in {sup 208}Pb from high-energy-resolution inelastic proton scattering and calculations with the quasiparticle-phonon model are analyzed. Wavelet analysis, both continuous and discrete, of the spectra is shown to be a powerful tool to extract the magnitude and localization of characteristic scales.

  14. Source apportionment of particulate matter in the US and associations with lung inflammatory markers

    SciTech Connect (OSTI)

    Duvall, R.M.; Norris, G.A.; Dailey, L.A.; Burke, J.M.; McGee, J.K.; Gilmour, M.I.; Gordon, T.; Devlin, R.B.

    2008-07-01

    Size-fractionated particulate matter (PM) samples were collected from six U.S. cities and chemically analyzed as part of the Multiple Air Pollutant Study. Particles were administered to cultured lung cells and the production of three different proinflammatory markers was measured to explore the association between the health effect markers and PM. Ultrafine, fine, and coarse PM samples were collected between December 2003 and May 2004 over a 4-wk period in each city. Filters were pooled for each city and the PM samples were extracted then analyzed for trace metals, ions, and elemental carbon. Particle extracts were applied to cultured human primary airway epithelial cells, and the secreted levels of interleukin-8 (IL-8), heme oxygenase-1, and cyclooxygenase-2 were measured 1 and 24 h following exposure. Fine PM sources were quantified by the chemical mass balance (CMB) model. The relationship between toxicological measures, PM sources, and individual species were evaluated using linear regression. Ultrafine and fine PM mass were associated with increases in IL-8 (r{sup 2} = .80 for ultrafine and r{sup 2} = .52 for fine). Sources of fine PM and their relative contributions varied across the sampling sites and a strong linear association was observed between IL-8 and secondary sulfate from coal combustion (r{sup 2} = .79). Ultrafine vanadium, lead, copper, and sulfate were also associated with increases in IL-8. Increases in inflammatory markers were not observed for coarse PM mass and source markers. These findings suggest that certain PM size fractions and sources are associated with markers of lung injury or inflammation.

  15. Apparatus for measuring surface particulate contamination

    DOE Patents [OSTI]

    Woodmansee, Donald E. (Simpsonville, SC)

    2002-01-01

    An apparatus for measuring surface particulate contamination includes a tool for collecting a contamination sample from a target surface, a mask having an opening of known area formed therein for defining the target surface, and a flexible connector connecting the tool to the mask. The tool includes a body portion having a large diameter section defining a surface and a small diameter section extending from the large diameter section. A particulate collector is removably mounted on the surface of the large diameter section for collecting the contaminants. The tool further includes a spindle extending from the small diameter section and a spool slidingly mounted on the spindle. A spring is disposed between the small diameter section and the spool for biasing the spool away from the small diameter section. An indicator is provided on the spindle so as to be revealed when the spool is pressed downward to compress the spring.

  16. Face crack reduction strategy for particulate filters

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2012-01-31

    A system comprises a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas, a downstream end and at least one portion. A control module initiates combustion of PM in the PM filter using a heater and selectively adjusts oxygen levels of the exhaust gas to adjust a temperature of combustion adjacent to the at least one portion of the PM filter. A method comprises providing a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas, a downstream end and at least one portion; initiating combustion of PM in the PM filter using a heater; selectively adjusting oxygen levels of the exhaust gas to adjust a temperature of combustion adjacent to the at least one portion of the PM filter.

  17. Generator powered electrically heated diesel particulate filter

    DOE Patents [OSTI]

    Gonze, Eugene V; Paratore, Jr., Michael J

    2014-03-18

    A control circuit for a vehicle powertrain includes a switch that selectivity interrupts current flow between a first terminal and a second terminal. A first power source provides power to the first terminal and a second power source provides power to the second terminal and to a heater of a heated diesel particulate filter (DPF). The switch is opened during a DPF regeneration cycle to prevent the first power source from being loaded by the heater while the heater is energized.

  18. Immobilization of Rocky Flats Graphite Fines Residue

    SciTech Connect (OSTI)

    Rudisill, T.S.

    1999-04-06

    The development of the immobilization process for graphite fines has proceeded through a series of experimental programs. The experimental procedures and results from each series of experiments are discussed in this report.

  19. Fine Structure Studies in Proton Emission

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Structure Studies in Proton Emission In order to understand the evolution of single particle wave functions and deformations beyond the proton drip line, a program has been initiated to study fine structure decay in proton emission. Fine structure in the proton emission spectrum allows one not only to define low energy states in the daughter, but from a comparison of the proton energies and partial half-lives, enables determination of the composition of the single-particle proton states in the

  20. Pelletization of fine coals. Final report

    SciTech Connect (OSTI)

    Sastry, K.V.S.

    1995-12-31

    Coal is one of the most abundant energy resources in the US with nearly 800 million tons of it being mined annually. Process and environmental demands for low-ash, low-sulfur coals and economic constraints for high productivity are leading the coal industry to use such modern mining methods as longwall mining and such newer coal processing techniques as froth flotation, oil agglomeration, chemical cleaning and synthetic fuel production. All these processes are faced with one common problem area--fine coals. Dealing effectively with these fine coals during handling, storage, transportation, and/or processing continues to be a challenge facing the industry. Agglomeration by the unit operation of pelletization consists of tumbling moist fines in drums or discs. Past experimental work and limited commercial practice have shown that pelletization can alleviate the problems associated with fine coals. However, it was recognized that there exists a serious need for delineating the fundamental principles of fine coal pelletization. Accordingly, a research program has been carried involving four specific topics: (i) experimental investigation of coal pelletization kinetics, (ii) understanding the surface principles of coal pelletization, (iii) modeling of coal pelletization processes, and (iv) simulation of fine coal pelletization circuits. This report summarizes the major findings and provides relevant details of the research effort.

  1. Hydrophobic Dewatering of Fine Coal. Topical report, March 1, 1995-March 31, 1997

    SciTech Connect (OSTI)

    Yoon, R.; Sohn, S.; Luttrell, J.; Phillips, D.

    1997-12-31

    Many advanced fine coal cleaning technologies have been developed in recent years under the auspices of the U.S. Department of Energy. However, they are not as widely deployed in industry as originally anticipated. An important reason for this problem is that the cleaned coal product is difficult to dewater because of the large surface area associated with fine particles. Typically, mechanical dewatering, such as vacuum filtration and centrifugation, can reduce the moisture to 20-35% level, while thermal drying is costly. To address this important industrial problem, Virginia Tech has developed a novel dewatering process, in which water is displaced from the surface of fine particulate materials by liquid butane. Since the process is driven by the hydrophobic interaction between coal and liquid butane, it was referred to as hydrophobic dewatering (HD). A fine coal sample with 21.4 pm median size was subjected to a series of bench-scale HD tests. It was a mid-vol bituminous coal obtained from the Microcel flotation columns operating at the Middle Fork coal preparation plant, Virginia. All of the test results showed that the HD process can reduce the moisture to substantially less than 10%. The process is sensitive to the amount of liquid butane used in the process relative to the solids concentration in the feed stream. Neither the intensity nor the time of agitation is critical for the process. Also, the process does not require long time for phase separation. Under optimal operating conditions, the moisture of the fine coal can be reduced to 1% by weight of coal.

  2. Leatec Fine Ceramics Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    Place: Tao-Yuan Hsien, Taiwan Product: Taiwan-based manufacturer of chip alumina fine ceramic substrates. The firm also produces PV junction boxes. References: Leatec Fine...

  3. Estimates of Particulate Mass in Multi Canister Overpacks (MCO)

    SciTech Connect (OSTI)

    SLOUGHTER, J.P.

    2000-02-16

    High, best estimate, and low values are developed for particulate inventories within MCO baskets that have been loaded with freshly cleaned fuel assemblies and scrap. These per-basket estimates are then applied to all anticipated MCO payload configurations to identify which configurations are bounding for each type of particulate. Finally the resulting bounding and nominal values for residual particulates are combined with corresponding values [from other documents] for particulates that may be generated by corrosion of exposed uranium after the fuel has been cleaned. The resulting rounded nominal estimate for a typical MCO after 40 years of storage is 8 kg. The estimate for a bounding total particulate case MCO is that it may contain up to 64 kg of particulate after 40 years of storage.

  4. Estimates of particulate mass in multi-canister overpacks

    SciTech Connect (OSTI)

    SLOUGHTER, J.P.

    1999-02-25

    High, best estimate, and low values are developed for particulate inventories within MCO baskets that have been loaded with freshly cleaned fuel assemblies and scrap. These per-basket estimates are then applied to all anticipated MCO payload configurations to identify which configurations are bounding for each type of particulate. Finally the resulting bounding and nominal values for residual particulates are combined with corresponding values [from other documents] for particulate that may be generated by corrosion of exposed uranium after the fuel has been cleaned. The resulting rounded nominal estimate for a typical MCO after 40 years of storage is 8 kg. The estimate for a bounding total particulate case MCO is that it may contain up to 64 kg of particulate after 40 years of storage.

  5. Shielded regeneration heating element for a particulate filter

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Ament, Frank [Troy, MI

    2011-01-04

    An exhaust system includes a particulate filter (PF) that is disposed downstream from an engine. The PF filters particulates within an exhaust from the engine. A heating element heats particulate matter in the PF. A catalyst substrate or a flow converter is disposed upstream from said heating element. The catalyst substrate oxidizes the exhaust prior to reception by the heating element. The flow converter converts turbulent exhaust flow to laminar exhaust flow prior to reception by the heating element.

  6. Mesoscale Simulations of Particulate Flows with Parallel Distributed

    Office of Scientific and Technical Information (OSTI)

    Lagrange Multiplier Technique (Conference) | SciTech Connect Mesoscale Simulations of Particulate Flows with Parallel Distributed Lagrange Multiplier Technique Citation Details In-Document Search Title: Mesoscale Simulations of Particulate Flows with Parallel Distributed Lagrange Multiplier Technique Fluid particulate flows are common phenomena in nature and industry. Modeling of such flows at micro and macro levels as well establishing relationships between these approaches are needed to

  7. Local Soot Loading Distribution in Cordierite Diesel Particulate Filters by

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Dynamic Neutron Radiography | Department of Energy Local Soot Loading Distribution in Cordierite Diesel Particulate Filters by Dynamic Neutron Radiography Local Soot Loading Distribution in Cordierite Diesel Particulate Filters by Dynamic Neutron Radiography Quantitative analysis of the soot loading and soot distribution for Cordierite type DPFs are studied under controlled conditions. PDF icon deer10_harvel.pdf More Documents & Publications Neutron Imaging of Diesel Particulate Filters

  8. Final Report: Particulate Emissions Testing, Unit 1, Potomac River

    Energy Savers [EERE]

    Generating Station, Alexandria, Virginia | Department of Energy Final Report: Particulate Emissions Testing, Unit 1, Potomac River Generating Station, Alexandria, Virginia Final Report: Particulate Emissions Testing, Unit 1, Potomac River Generating Station, Alexandria, Virginia Docket No. EO-05-01: TRC Environmental Corporation (TRC) of Lowell, Massachusetts was retained by Mirant Potomac River, LLC (Mirant) to provide sampling and analytical support in completing a Particulate Emission

  9. High Efficiency Particulate Air (HEPA) Filter Test Facility (FTF) |

    Energy Savers [EERE]

    Department of Energy High Efficiency Particulate Air (HEPA) Filter Test Facility (FTF) High Efficiency Particulate Air (HEPA) Filter Test Facility (FTF) DOE-STD-3020-2015 Specification for HEPA Filters Used by DOE Contractors The purpose of this standard is to establish specifications and quality assurance (QA) requirements for the procurement, packaging, shipping and storage of high efficiency particulate air (HEPA) filters. DOE-STD-3025-2007 Quality Assurance Inspection and Testing of HEPA

  10. Non-Destructive Neutron Imaging to Analyze Particulate Filters | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy Neutron Imaging to Analyze Particulate Filters Non-Destructive Neutron Imaging to Analyze Particulate Filters Non-destructive, non-invasive imaging is being employed in the laboratory to understand how soot, ash, and catalytic washcoat are deposited within a diesel particulate filter. PDF icon p-27_toops.pdf More Documents & Publications Neutron Imaging of Advanced Engine Technologies Neutron Imaging of Advanced Engine Technologies Vehicle Technologies Office Merit Review 2014:

  11. Reliability and Design Strength Limit Calculations on Diesel Particulate

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Filters | Department of Energy and Design Strength Limit Calculations on Diesel Particulate Filters Reliability and Design Strength Limit Calculations on Diesel Particulate Filters 2004 Diesel Engine Emissions Reduction (DEER) Confererence Presentation: Corning PDF icon 2004_deer_webb.pdf More Documents & Publications Predicting Thermal Stress in Diesel Particulate Filters Environmental Effects on Power Electronic Devices Effect of Machining Procedures on the Strength of Ceramics for

  12. Requirements-Driven Diesel Catalyzed Particulate Trap Design and

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Optimization | Department of Energy Requirements-Driven Diesel Catalyzed Particulate Trap Design and Optimization Requirements-Driven Diesel Catalyzed Particulate Trap Design and Optimization 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_harris.pdf More Documents & Publications Diesel Emission Control Technology Review Investigation of Aging Mechanisms in Lean NOx Traps Diesel Particulate Filters: Market Introducution

  13. Characterization of Particulate Emissions from GDI Engine Combustion with

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Alcohol-blended Fuels | Department of Energy Particulate Emissions from GDI Engine Combustion with Alcohol-blended Fuels Characterization of Particulate Emissions from GDI Engine Combustion with Alcohol-blended Fuels Analysis showed that gasoline direct injection engine particulates from alcohol-blended fuels are significantly different in morphology and nanostructures PDF icon p-19_seong.pdf More Documents & Publications Vehicle Technologies Office Merit Review 2014: Fuel and Lubricant

  14. Detailed Assessment of Particulate Characteristics from Low-Temperature

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Combustion Engines | Department of Energy Assessment of Particulate Characteristics from Low-Temperature Combustion Engines Detailed Assessment of Particulate Characteristics from Low-Temperature Combustion Engines 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ace083_lee_2012_p.pdf More Documents & Publications Characterization of Pre-Commercial Gasoline Engine Particulates Through Advanced Aerosol

  15. Development and Applications of Catalyzed Diesel Particulate Filter |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Applications of Catalyzed Diesel Particulate Filter Development and Applications of Catalyzed Diesel Particulate Filter 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Sud Chemie Prototech Inc. PDF icon 2004_deer_huang.pdf More Documents & Publications CARB Verification of Catalyzed Diesel Particulate Filters for Emergency Generator Sets A Revealing Look Inside Passive and Active DPF Regeneration: In-Situ Optical Analysis of Ash Formation and

  16. Development of Acicular Mullite Materials for Diesel Particulate Filters

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Application | Department of Energy Acicular Mullite Materials for Diesel Particulate Filters Application Development of Acicular Mullite Materials for Diesel Particulate Filters Application 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_pyzik.pdf More Documents & Publications Tailored Acicular Mullite Substrates for Multifunctional Diesel Particulate Filters Future Trends for DPFƒSCR On-Filter (SCRF) fundamental Modeling and

  17. Development of Advanced Diesel Particulate Filtration (DPF) Systems |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy 0 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. PDF icon ace024_lee_2010_o.pdf More Documents & Publications Development of Advanced Diesel Particulate Filtration (DPF) Systems Development of Advanced Diesel Particulate Filtration (DPF) Systems (ANL/Corning/Caterpillar CRADA) Development of Advanced Particulate Filters

  18. Development of an Active Regeneration Diesel Particulate Filter System |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy an Active Regeneration Diesel Particulate Filter System Development of an Active Regeneration Diesel Particulate Filter System PDF icon 2004_deer_anderson.pdf More Documents & Publications A New Active DPF System for "Stop and Go" Duty-Cycle Vehicles Donaldson Active Regeneration PM System A New CFD Model for understanding and Managing Diesel Particulate Filter Regeneration

  19. Diesel Particulate Filter: A Success for Faurecia Exhaust Systems |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Filter: A Success for Faurecia Exhaust Systems Diesel Particulate Filter: A Success for Faurecia Exhaust Systems 2003 DEER Conference Presentation: Faurecia Exhaust Systems PDF icon 2003_deer_parmann.pdf More Documents & Publications Combination of Diesel fuel system architectures and Ceria-based fuel-borne catalysts for improvement and simplification of the Diesel Particulate Filter System in serial applications Improvement and Simplification of Diesel Particulate

  20. Durability of Diesel Particulate Filters - Bench Studies on Cordierite

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Filters | Department of Energy Particulate Filters - Bench Studies on Cordierite Filters Durability of Diesel Particulate Filters - Bench Studies on Cordierite Filters Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. PDF icon 2006_deer_dacosta.pdf More Documents & Publications Requirements-Driven Diesel Catalyzed Particulate Trap Design and Optimization Development of

  1. Emissions and Durability of Underground Mining Diesel Particulate Filter

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Applications | Department of Energy Durability of Underground Mining Diesel Particulate Filter Applications Emissions and Durability of Underground Mining Diesel Particulate Filter Applications Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. PDF icon 2006_deer_rubeli.pdf More Documents & Publications Testing an Active Diesel Particulate Filter on a 2-Cycle Marine

  2. Mesoscale Simulations of Particulate Flows with Parallel Distributed

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Lagrange Multiplier Technique (Conference) | SciTech Connect Mesoscale Simulations of Particulate Flows with Parallel Distributed Lagrange Multiplier Technique Citation Details In-Document Search Title: Mesoscale Simulations of Particulate Flows with Parallel Distributed Lagrange Multiplier Technique Fluid particulate flows are common phenomena in nature and industry. Modeling of such flows at micro and macro levels as well establishing relationships between these approaches are needed to

  3. Blowers for Air Assisted Diesel Particulate Filter Regeneration |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Blowers for Air Assisted Diesel Particulate Filter Regeneration Blowers for Air Assisted Diesel Particulate Filter Regeneration Prototypes of a new series of high-pressure, brushless DC motor-drive blowers have completed field testing, and DFM and manufacturing cost studies are well advanced. PDF icon p-14_milburn.pdf More Documents & Publications Development of a Non Air-assisted Thermal Regenerator Development of an Active Regeneration Diesel Particulate Filter

  4. CARB Verification of Catalyzed Diesel Particulate Filters for Emergency

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Generator Sets | Department of Energy CARB Verification of Catalyzed Diesel Particulate Filters for Emergency Generator Sets CARB Verification of Catalyzed Diesel Particulate Filters for Emergency Generator Sets 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_huang.pdf More Documents & Publications Development and Applications of Catalyzed Diesel Particulate Filter California ARB Verification Testing of the CBSTM Soot Filter for

  5. Substrate Studies of an Electrically-Assisted Diesel Particulate Filter |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Substrate Studies of an Electrically-Assisted Diesel Particulate Filter Substrate Studies of an Electrically-Assisted Diesel Particulate Filter Transient distributed DPF wall and gas temperature were simultaneously measured using the optical and thermocouple systems, on both electrically assisted and conventional fuel-only DPF regeneration cycles PDF icon deer12_parks.pdf More Documents & Publications Electrically-Assisted Diesel Particulate Filter Regeneration

  6. Diesel particulate filter regeneration via resistive surface heating

    DOE Patents [OSTI]

    Gonze, Eugene V; Ament, Frank

    2013-10-08

    An exhaust system that processes exhaust generated by an engine is provided. The system includes: a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine; and a grid of electrically resistive material that is applied to an exterior upstream surface of the PF and that selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF.

  7. Development of Advanced Diesel Particulate Filtration (DPF) Systems...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon ace024lee2011o.pdf More Documents & Publications Development of Advanced Particulate Filters...

  8. Development of an Active Regeneration Diesel Particulate Filter...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    DPF System for "Stop and Go" Duty-Cycle Vehicles Donaldson Active Regeneration PM System A New CFD Model for understanding and Managing Diesel Particulate Filter Regeneration...

  9. Effect of Biodiesel Blends on Diesel Particulate Filter Performance

    SciTech Connect (OSTI)

    Williams, A.; McCormick, R. L.; Hayes, R. R.; Ireland, J.; Fang, H. L.

    2006-11-01

    Presents results of tests of ultra-low sulfur diesel blended with soy-biodiesel at 5 percent using a Cummins ISB engine with a diesel particulate filter.

  10. Ultra-Lite Diesel Particulate Filter Cartridge for Reduced Regeneratio...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Self-cleaning ceramic filter cartridges offer the advantage of better fuel economy, faster ... More Documents & Publications Pleated Ceramic Fiber Diesel Particulate Filter Expanded ...

  11. Final Report: Particulate Emissions Testing, Unit 1, Potomac...

    Broader source: Energy.gov (indexed) [DOE]

    analytical support in completing a Particulate Emission Test of Unit 1 of the Potomac River generating facility. The Test Program at the Potomac facility involved the completion ...

  12. Non-Destructive Neutron Imaging to Analyze Particulate Filters...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    non-invasive imaging is being employed in the laboratory to understand how soot, ash, and catalytic washcoat are deposited within a diesel particulate filter. PDF icon...

  13. Detailed Assessment of Particulate Characteristics from Low-Temperatur...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Detailed Assessment of Particulate Characteristics from Low-Temperature Combustion Engines ... Program Annual Merit Review and Peer Evaluation Meeting PDF icon ...

  14. Development of Acicular Mullite Materials for Diesel Particulate...

    Broader source: Energy.gov (indexed) [DOE]

    Tailored Acicular Mullite Substrates for Multifunctional Diesel Particulate Filters Future Trends for DPFSCR On-Filter (SCRF) fundamental Modeling and Experimental Studies of ...

  15. Substrate Studies of an Electrically-Assisted Diesel Particulate...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of an Electrically-Assisted Diesel Particulate Filter Transient distributed DPF wall and gas temperature were simultaneously measured using the optical and thermocouple systems, on...

  16. Value Analysis of Alternative Diesel Particulate Filter (DPF...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Value Analysis of Alternative Diesel Particulate Filter (DPF) Substrates for Future Diesel ... Provide higher soot mass limits and durability than other materials at the same porosity. ...

  17. Diesel Particulate Oxidation Model: Combined Effects of Fixed...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Oxidation Model: Combined Effects of Fixed & Volatile Carbon Diesel Particulate Oxidation Model: Combined Effects of Fixed & Volatile Carbon Poster presented at the 16th Directions ...

  18. Mesoscale simulations of particulate flows with parallel distributed...

    Office of Scientific and Technical Information (OSTI)

    distributed Lagrange multiplier technique Citation Details In-Document Search Title: Mesoscale simulations of particulate flows with parallel distributed Lagrange multiplier ...

  19. Electrically heated particulate filter regeneration using hydrocarbon adsorbents

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2011-02-01

    An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine. A grid of electrically resistive material selectively heats exhaust passing through the upstream end to initiate combustion of particulates within the PF. A hydrocarbon adsorbent coating applied to the PF releases hydrocarbons into the exhaust to increase a temperature of the combustion of the particulates within the PF.

  20. Fuel-Neutral Studies of Particulate Matter Transport Emissions...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon ace056stewart2011o.pdf More Documents & Publications Fuel-Neutral Studies of Particulate Matter ...

  1. Development and Demonstration of an Electronic Particulate Matter...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Aftertreatment and Low Pressure Loop EGR Applied to an Off-Highway Engine Advanced Radio Frequency-Based Sensors for Monitoring Diesel Particulate Filter Loading and...

  2. Neutron Imaging of Diesel Particulate Filters

    SciTech Connect (OSTI)

    Strzelec, Andrea; Bilheux, Hassina Z; FINNEY, Charles E A; Daw, C Stuart; Foster, Prof. Dave; Rutland, Prof. Christopher J.; Schillinger, Burkhard; Schulz, Michael

    2009-01-01

    This article presents nondestructive neutron computed tomography (nCT) measurements of Diesel Particulate Filters (DPFs) as a method to measure ash and soot loading in the filters. Uncatalyzed and unwashcoated 200cpsi cordierite DPFs exposed to 100% biodiesel (B100) exhaust and conventional ultra low sulfur 2007 certification diesel (ULSD) exhaust at one speed-load point (1500rpm, 2.6bar BMEP) are compared to a brand new (never exposed) filter. Precise structural information about the substrate as well as an attempt to quantify soot and ash loading in the channel of the DPF illustrates the potential strength of the neutron imaging technique.

  3. Electrically heated particulate filter with reduced stress

    DOE Patents [OSTI]

    Gonze, Eugene V.

    2013-03-05

    A system comprises a particulate matter (PM) filter comprising an inlet for receiving exhaust gas. A zoned heater is arranged in the inlet and comprises a resistive heater comprising N zones, where N is an integer greater than one. Each of the N zones comprises M sub-zones, where M is an integer greater than one. A control module selectively activates one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates others of the N zones.

  4. Method of forming particulate materials for thin-film solar cells

    DOE Patents [OSTI]

    Eberspacher, Chris; Pauls, Karen Lea

    2004-11-23

    A method for preparing particulate materials useful in fabricating thin-film solar cells is disclosed. Particulate materials is prepared by the method include for example materials comprising copper and indium and/or gallium in the form of single-phase, mixed-metal oxide particulates; multi-phase, mixed-metal particulates comprising a metal oxide; and multinary metal particulates.

  5. Development of an Advanced Fine Coal Suspension Dewatering Process

    SciTech Connect (OSTI)

    B. K. Parekh; D. P. Patil

    2008-04-30

    With the advancement in fine coal cleaning technology, recovery of fine coal (minus 28 mesh) has become an attractive route for the U.S. coal industry. The clean coal recovered using the advanced flotation technology i.e. column flotation, contains on average 20% solids and 80% water, with an average particle size of 35 microns. Fine coal slurry is usually dewatered using a vacuum dewatering technique, providing a material with about 25 to 30 percent moisture. The process developed in this project will improve dewatering of fine (0.6mm) coal slurry to less than 20 percent moisture. Thus, thermal drying of dewatered wet coal will be eliminated. This will provide significant energy savings for the coal industry along with some environmental benefits. A 1% increase in recovery of coal and producing a filter cake material of less than 20 % moisture will amount to energy savings of 1900 trillion Btu/yr/unit. In terms of the amount of coal it will be about 0.8% of the total coal being used in the USA for electric power generation. It is difficult to dewater the fine clean coal slurry to about 20% moisture level using the conventional dewatering techniques. The finer the particle, the larger the surface area and thus, it retains large amounts of moisture on the surface. The coal industry has shown some reluctance in using the advanced coal recovery techniques, because of unavailability of an economical dewatering technique which can provide a product containing less than 20% moisture. The U.S.DOE and Industry has identified the dewatering of coal fines as a high priority problem. The goal of the proposed program is to develop and evaluate a novel two stage dewatering process developed at the University of Kentucky, which involves utilization of two forces, namely, vacuum and pressure for dewatering of fine coal slurries. It has been observed that a fine coal filter cake formed under vacuum has a porous structure with water trapped in the capillaries. When this porous cake is subjected to pressure for a short time, the free water present is released from the filter cake. Laboratory studies have shown that depending on the coal type a filter cake containing about 15% moisture could be obtained using the two-stage filtration technique. It was also noted that applying intermittent breaks in vacuum force during cake formation, which disturbed the cake structure, helped in removing moisture from the filter cakes. In this project a novel approach of cleaning coal using column flotation was also developed. With this approach the feed capacity of the column is increased significantly, and the column was also able to recover coarser size coal which usually gets lost in the process. The outcome of the research benefits the coal industry, utility industry, and indirectly the general public. The benefits can be counted in terms of clean energy, cleaner environment, and lower cost power.

  6. Final report for "Characterization of Fine Particulate Matter (PM) and secondary PM Precursor Gases in the Mexico City Metropolitan Area"

    SciTech Connect (OSTI)

    Prof. Jose-Luis Jimenez

    2009-05-18

    The objectives of this funded project were (a) to further analyze the data collected by our group and collaborators in Mexico City during the MCMA-2003 field campaign, with the goal of further our understanding of aerosol sources and processes; and (b) to deploy several advanced instruments, including the newly developed high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) and thermal-denuder (TD), during the MILAGRO/MAX-Mex/MCMA-2006 field campaign, and to analyze those data (together with the 2003 data) to provide additional insights on the formation and transformation of aerosols in the Mexico City area. These goals were addressed in collaboration with our project partners, MIT/Molina Center, and Aerodyne Research. Overall this project was very successful, resulting on 22+ journal papers including six highly cited papers and three papers that are the most cited in their respective journals (out of several thousand papers) since the year in which they were published. Multiple discoveries, such as the the underestimation of SOA in urban areas even for short photochemical ages, the demonstration that urban POA is of similar or higher volatility than urban SOA, and the first analysis of organic aerosol elemental composition in real-time have been recently published. Several dozen presentations at major US and international conferences and seminars also acknowledged this grant.

  7. DEVELOPMENT OF FINE PARTICULATE EMISSION FACTORS AND SPECIATION PROFILES FOR OIL AND GAS-FIRED COMBUSTION SYSTEMS

    SciTech Connect (OSTI)

    Glenn C. England; Stephanie Wien; Mingchih O. Chang

    2002-08-01

    This report provides results from the first year of this three-year project to develop dilution measurement technology for characterizing PM2.5 (particles with aerodynamic diameter smaller than 2.5 micrometers) and precursor emissions from stationary combustion sources used in oil, gas and power generation operations. Detailed emission rate and chemical speciation test results for a refinery gas-fired process heater and plans for cogeneration gas turbine tests and pilot-scale tests are presented. Tests were performed using a research dilution sampling apparatus and traditional EPA methods to compare PM2.5 mass and chemical speciation. Test plans are presented for a gas turbine facility that will be tested in the fourth quarter of 2002. A preliminary approach for pilot-scale tests is presented that will help define design constraints for a new dilution sampler design that is smaller, lighter, and less costly to use.

  8. Method for immobilizing particulate materials in a packed bed

    DOE Patents [OSTI]

    Even, W.R. Jr.; Guthrie, S.E.; Raber, T.N.; Wally, K.; Whinnery, L.L.; Zifer, T.

    1999-02-02

    The present invention pertains generally to immobilizing particulate matter contained in a packed bed reactor so as to prevent powder migration, compaction, coalescence, or the like. More specifically, this invention relates to a technique for immobilizing particulate materials using a microporous foam-like polymer such that (a) the particulate retains its essential chemical nature, (b) the local movement of the particulate particles is not unduly restricted, (c) bulk powder migration and is prevented, (d) physical and chemical access to the particulate is unchanged over time, and (e) very high particulate densities are achieved. The immobilized bed of the present invention comprises a vessel for holding particulate matter, inlet and an outlet ports or fittings, a loosely packed bed of particulate material contained within the vessel, and a three dimensional porous matrix for surrounding and confining the particles thereby fixing the movement of an individual particle to a limited local position. The established matrix is composed of a series of cells or chambers comprising walls surrounding void space, each wall forming the wall of an adjacent cell; each wall containing many holes penetrating through the wall yielding an overall porous structure and allowing useful levels of gas transport. 4 figs.

  9. Method for immobilizing particulate materials in a packed bed

    DOE Patents [OSTI]

    Even, Jr., William R.; Guthrie, Stephen E.; Raber, Thomas N.; Wally, Karl; Whinnery, LeRoy L.; Zifer, Thomas

    1999-01-01

    The present invention pertains generally to immobilizing particulate matter contained in a "packed" bed reactor so as to prevent powder migration, compaction, coalescence, or the like. More specifically, this invention relates to a technique for immobilizing particulate materials using a microporous foam-like polymer such that a) the particulate retains its essential chemical nature, b) the local movement of the particulate particles is not unduly restricted, c) bulk powder migration and is prevented, d) physical and chemical access to the particulate is unchanged over time, and e) very high particulate densities are achieved. The immobilized bed of the present invention comprises a vessel for holding particulate matter, inlet and an outlet ports or fittings, a loosely packed bed of particulate material contained within the vessel, and a three dimensional porous matrix for surrounding and confining the particles thereby fixing the movement of individual particle to a limited local position. The established matrix is composed of a series of cells or chambers comprising walls surrounding void space, each wall forming the wall of an adjacent cell; each wall containing many holes penetrating through the wall yielding an overall porous structure and allowing useful levels of gas transport.

  10. Process for off-gas particulate removal and apparatus therefor

    DOE Patents [OSTI]

    Carl, D.E.

    1997-10-21

    In the event of a breach in the off-gas line of a melter operation requiring closure of the line, a secondary vessel vent line is provided with a particulate collector utilizing atomization for removal of large particulates from the off-gas. The collector receives the gas containing particulates and directs a portion of the gas through outer and inner annular channels. The collector further receives a fluid, such as water, which is directed through the outer channel together with a second portion of the particulate-laden gas. The outer and inner channels have respective ring-like termination apertures concentrically disposed adjacent one another on the outer edge of the downstream side of the particulate collector. Each of the outer and inner channels curves outwardly away from the collector`s centerline in proceeding toward the downstream side of the collector. Gas flow in the outer channel maintains the fluid on the channel`s wall in the form of a ``wavy film,`` while the gas stream from the inner channel shears the fluid film as it exits the outer channel in reducing the fluid to small droplets. Droplets formed by the collector capture particulates in the gas stream by one of three mechanisms: impaction, interception or Brownian diffusion in removing the particulates. The particulate-laden droplets are removed from the fluid stream by a vessel vent condenser or mist eliminator. 4 figs.

  11. Electrically-Assisted Diesel Particulate Filter Regeneration | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy 1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon pm041_lance_2011_p.pdf More Documents & Publications Electrically-Assisted Diesel Particulate Filter Regeneration Substrate Studies of an Electrically-Assisted Diesel Particulate Filter Biofuels Impact on DPF Durability

  12. Process for off-gas particulate removal and apparatus therefor

    DOE Patents [OSTI]

    Carl, Daniel E. (Orchard Park, NY)

    1997-01-01

    In the event of a breach in the off-gas line of a melter operation requiring closure of the line, a secondary vessel vent line is provided with a particulate collector utilizing atomization for removal of large particulates from the off-gas. The collector receives the gas containing particulates and directs a portion of the gas through outer and inner annular channels. The collector further receives a fluid, such as water, which is directed through the outer channel together with a second portion of the particulate-laden gas. The outer and inner channels have respective ring-like termination apertures concentrically disposed adjacent one another on the outer edge of the downstream side of the particulate collector. Each of the outer and inner channels curves outwardly away from the collector's centerline in proceeding toward the downstream side of the collector. Gasflow in the outer channel maintains the fluid on the channel's wall in the form of a "wavy film," while the gas stream from the inner channel shears the fluid film as it exits the outer channel in reducing the fluid to small droplets. Droplets formed by the collector capture particulates in the gas stream by one of three mechanisms: impaction, interception or Brownian diffusion in removing the particulates. The particulate-laden droplets are removed from the fluid stream by a vessel vent condenser or mist eliminator.

  13. Method for removing particulate matter from a gas stream

    DOE Patents [OSTI]

    Postma, Arlin K. (Benton City, WA)

    1984-01-01

    Particulate matter is removed from a stream of pressurized gas by directing the stream of gas upwardly through a bed of porous material, the porous bed being held in an open ended container and at least partially submerged in liquid. The passage of the gas through the porous bed sets up a circulation in the liquid which cleans the particulate matter from the bed.

  14. System for utilizing oil shale fines

    DOE Patents [OSTI]

    Harak, Arnold E.

    1982-01-01

    A system is provided for utilizing fines of carbonaceous materials such as particles or pieces of oil shale of about one-half inch or less diameter which are rejected for use in some conventional or prior surface retorting process, which obtains maximum utilization of the energy content of the fines and which produces a waste which is relatively inert and of a size to facilitate disposal. The system includes a cyclone retort (20) which pyrolyzes the fines in the presence of heated gaseous combustion products, the cyclone retort having a first outlet (30) through which vapors can exit that can be cooled to provide oil, and having a second outlet (32) through which spent shale fines are removed. A burner (36) connected to the spent shale outlet of the cyclone retort, burns the spent shale with air, to provide hot combustion products (24) that are carried back to the cyclone retort to supply gaseous combustion products utilized therein. The burner heats the spent shale to a temperature which forms a molten slag, and the molten slag is removed from the burner into a quencher (48) that suddenly cools the molten slag to form granules that are relatively inert and of a size that is convenient to handle for disposal in the ground or in industrial processes.

  15. Process for producing dispersed particulate composite materials

    DOE Patents [OSTI]

    Henager, Jr., Charles H. (Richland, WA); Hirth, John P. (Viola, ID)

    1995-01-01

    This invention is directed to a process for forming noninterwoven dispersed particulate composite products. In one case a composite multi-layer film product comprises a substantially noninterwoven multi-layer film having a plurality of discrete layers. This noninterwoven film comprises at least one discrete layer of a first material and at least one discrete layer of a second material. In another case the first and second materials are blended together with each other. In either case, the first material comprises a metalloid and the second material a metal compound. At least one component of a first material in one discrete layer undergoes a solid state displacement reaction with at least one component of a second material thereby producing the requisite noninterwoven composite film product. Preferably, the first material comprises silicon, the second material comprises Mo.sub.2 C, the third material comprises SiC and the fourth material comprises MoSi.sub.2.

  16. Overlap zoned electrically heated particulate filter

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Chapman, Mark R [Brighton, MI

    2011-07-19

    A system includes a particulate matter (PM) filter that includes an upstream end for receiving exhaust gas and a downstream end. A zoned heater is arranged spaced from the upstream end and comprises N zones, where N is an integer greater than one, wherein each of the N zones comprises M sub-zones, where M is an integer greater than or equal to one, and wherein the N zones and the M sub-zones are arranged in P layers, where P is an integer greater than one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates non-selected ones of the N zones.

  17. Real-Time Particulate Mass Measurements Pre and Post Diesel Particulat...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Real-Time Particulate Mass Measurements Pre and Post Diesel Particulate Filters for ... Filter Loading and Regeneration Real-Time Measurement of Diesel Trap Efficiency ...

  18. On-Board Engine Exhaust Particulate Matter Sensor for HCCI and...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Engine Exhaust Particulate Matter Sensor for HCCI and Conventional Diesel Engines On-Board Engine Exhaust Particulate Matter Sensor for HCCI and Conventional Diesel Engines 2009...

  19. Particulate contamination removal from wafers using plasmas and mechanical agitation

    DOE Patents [OSTI]

    Selwyn, G.S.

    1998-12-15

    Particulate contamination removal from wafers is disclosed using plasmas and mechanical agitation. The present invention includes the use of plasmas with mechanical agitation for removing particulate matter from the surface of a wafer. The apparatus hereof comprises a mechanical activator, at least one conducting contact pin for transferring the vibration from the activator to the wafer, clamp fingers that maintain the wafer`s position, and means for generating a plasma in the vicinity of the surface of the wafer, all parts of the cleaning apparatus except the mechanical activator and part of the contact pin being contained inside the processing chamber. By exposing a wafer to a plasma and providing motion thereto in a direction perpendicular to its surface, the bonding between the particulate matter and the surface may be overcome. Once free of the wafer surface, the particulates become charged by electrons from the plasma and are drawn into the plasma by attractive forces which keep them from redepositing. The introduction of a flowing gas through the plasma sweeps the particulates away from the wafer and out of the plasma. The entire surface is cleaned during one cleaning step. The use of an rf plasma to accomplish the particulate removal was found to remove more than 90% of the particulates. 4 figs.

  20. Particulate contamination removal from wafers using plasmas and mechanical agitation

    DOE Patents [OSTI]

    Selwyn, Gary S. (Los Alamos, NM)

    1998-01-01

    Particulate contamination removal from wafers using plasmas and mechanical agitation. The present invention includes the use of plasmas with mechanical agitation for removing particulate matter from the surface of a wafer. The apparatus hereof comprises a mechanical activator, at least one conducting contact pin for transferring the vibration from the activator to the wafer, clamp fingers that maintain the wafer's position, and means for generating a plasma in the vicinity of the surface of the wafer, all parts of the cleaning apparatus except the mechanical activator and part of the contact pin being contained inside the processing chamber. By exposing a wafer to a plasma and providing motion thereto in a direction perpendicular to its surface, the bonding between the particulate matter and the surface may be overcome. Once free of the wafer surface, the particulates become charged by electrons from the plasma and are drawn into the plasma by attractive forces which keep them from redepositing. The introduction of a flowing gas through the plasma sweeps the particulates away from the wafer and out of the plasma. The entire surface is cleaned during one cleaning step. The use of an rf plasma to accomplish the particulate removal was found to remove more than 90% of the particulates.

  1. Measurements of particulate matter concentrations at a landfill site (Crete, Greece)

    SciTech Connect (OSTI)

    Chalvatzaki, E.; Kopanakis, I.; Kontaksakis, M.; Glytsos, T.; Kalogerakis, N.; Lazaridis, M.

    2010-11-15

    Large amounts of solid waste are disposed in landfills and the potential of particulate matter (PM) emissions into the atmosphere is significant. Particulate matter emissions in landfills are the result of resuspension from the disposed waste and other activities such as mechanical recycling and composting, waste unloading and sorting, the process of coating residues and waste transport by trucks. Measurements of ambient levels of inhalable particulate matter (PM{sub 10}) were performed in a landfill site located at Chania (Crete, Greece). Elevated PM{sub 10} concentrations were measured in the landfill site during several landfill operations. It was observed that the meteorological conditions (mainly wind velocity and temperature) influence considerably the PM{sub 10} concentrations. Comparison between the PM{sub 10} concentrations at the landfill and at a PM{sub 10} background site indicates the influence of the landfill activities on local concentrations at the landfill. No correlation was observed between the measurements at the landfill and the background sites. Finally, specific preventing measures are proposed to control the PM concentrations in landfills.

  2. Process for treating moisture laden coal fines

    DOE Patents [OSTI]

    Davis, Burl E. (New Kensington, PA); Henry, Raymond M. (Gibsonia, PA); Trivett, Gordon S. (South Surrey, CA); Albaugh, Edgar W. (Birmingham, AL)

    1993-01-01

    A process is provided for making a free flowing granular product from moisture laden caked coal fines, such as wet cake, by mixing a water immiscible substance, such as oil, with the caked coal, preferably under low shear forces for a period of time sufficient to produce a plurality of free flowing granules. Each granule is preferably comprised of a dry appearing admixture of one or more coal particle, 2-50% by weight water and the water immiscible substance.

  3. Synthesis of fine-grained TATB

    DOE Patents [OSTI]

    Lee, Kien-Yin (Santa Fe, NM); Kennedy, James E. (Santa Fe, NM)

    2003-04-15

    A method for producing fine-grained triamino-trinitrobenzene (TATB) powders having improved detonation-spreading performance and hence increased shock sensitivity when compared with that for ultrafine TATB is described. A single-step, sonochemical amination of trichloro-trinitrobenzene using ammonium hydroxide solution in a sealed vessel yields TATB having approximately 6 .mu.m median particle diameter and increased shock sensitivity.

  4. Immobilization of Rocky Flats graphite fines residues

    SciTech Connect (OSTI)

    Rudisill, T.S.; Marra, J.C.; Peeler, D.K.

    1999-07-01

    The Savannah River Technology Center (SRTC) is developing an immobilization process for graphite fines residues generated during nuclear materials production activities at the Rocky Flats Environmental Technology Site (Rocky Flats). The continued storage of this material has been identified as an item of concern. The residue was generated during the cleaning of graphite casting molds and potentially contains reactive plutonium metal. The average residue composition is 73 wt% graphite, 15 wt% calcium fluoride (CaF{sub 2}), and 12 wt% plutonium oxide (PuO{sub 2}). Approximately 950 kg of this material are currently stored at Rocky Flats. The strategy of the immobilization process is to microencapsulate the residue by mixing with a sodium borosilicate (NBS) glass frit and heating at nominally 700 C. The resulting waste form would be sent to the Waste Isolation Pilot Plant (WIPP) for disposal. Since the PuO{sub 2} concentration in the residue averages 12 wt%, the immobilization process was required to meet the intent of safeguards termination criteria by limiting plutonium recoverability based on a test developed by Rocky Flats. The test required a plutonium recovery of less than 4 g/kg of waste form when a sample was leached using a nitric acid/CaF{sub 2} dissolution flowsheet. Immobilization experiments were performed using simulated graphite fines with cerium oxide (CeO{sub 2}) as a surrogate for PuO{sub 2} and with actual graphite fines residues. Small-scale surrogate experiments demonstrated that a 4:1 frit to residue ratio was adequate to prevent recovery of greater than 4 g/kg of cerium from simulated waste forms. Additional experiments investigated the impact of varying concentrations of CaF{sub 2} and the temperature/heating time cycle on the cerium recovery. Optimal processing conditions developed during these experiments were subsequently demonstrated at full-scale with surrogate materials and on a smaller scale using actual graphite fines.

  5. Molecular marker analysis as a guide to the sources of fine organic aerosols

    SciTech Connect (OSTI)

    Rogge, W.F.; Cass, G.R.; Hildemann, L.M.; Mazurek, M.A.; Simoneit, B.R.T.

    1992-07-01

    The molecular composition of fine particulate (D{sub p} {ge} 2 {mu}m) organic aerosol emissions from the most important sources in the Los Angeles area has been determined. Likewise, ambient concentration patterns for more than 80 single organic compounds have been measured at four urban sites (West Los Angeles, Downtown Los Angeles, Pasadena, and Rubidoux) and at one remote offshore site (San Nicolas Island). It has been found that cholesterol serves as a marker compound for emissions from charbroilers and other meat cooking operations. Vehicular exhaust being emitted from diesel and gasoline powered engines can be traced in the Los Angeles atmosphere using fossil petroleum marker compounds such as steranes and pentacyclic triterpanes (e.g., hopanes). Biogenic fine particle emission sources such as plant fragments abraded from leaf surfaces by wind and weather can be traced in the urban atmosphere. Using distinct and specific source organic tracers or assemblages of organic compounds characteristic for the sources considered it is possible to estimate the influence of different source types at any urban site where atmospheric data are available.

  6. Molecular marker analysis as a guide to the sources of fine organic aerosols

    SciTech Connect (OSTI)

    Rogge, W.F.; Cass, G.R. ); Hildemann, L.M. . Dept. of Civil Engineering); Mazurek, M.A. ); Simoneit, B.R.T. Environmental Geochemistry Group)

    1992-07-01

    The molecular composition of fine particulate (D[sub p] [ge] 2 [mu]m) organic aerosol emissions from the most important sources in the Los Angeles area has been determined. Likewise, ambient concentration patterns for more than 80 single organic compounds have been measured at four urban sites (West Los Angeles, Downtown Los Angeles, Pasadena, and Rubidoux) and at one remote offshore site (San Nicolas Island). It has been found that cholesterol serves as a marker compound for emissions from charbroilers and other meat cooking operations. Vehicular exhaust being emitted from diesel and gasoline powered engines can be traced in the Los Angeles atmosphere using fossil petroleum marker compounds such as steranes and pentacyclic triterpanes (e.g., hopanes). Biogenic fine particle emission sources such as plant fragments abraded from leaf surfaces by wind and weather can be traced in the urban atmosphere. Using distinct and specific source organic tracers or assemblages of organic compounds characteristic for the sources considered it is possible to estimate the influence of different source types at any urban site where atmospheric data are available.

  7. Development of Advanced Diesel Particulate Filtration (DPF) Systems...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. PDF icon ace024lee2010o.pdf More Documents & Publications Development of Advanced Diesel Particulate...

  8. Diesel Particulate Filter Technology for Low-Temperature and...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Filter Technology for Low-Temperature and Low-NOxPM Applications Diesel Particulate Filter Technology for Low-Temperature and Low-NOxPM Applications 2004 DEER Conference...

  9. Blowers for Air Assisted Diesel Particulate Filter Regeneration...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Blowers for Air Assisted Diesel Particulate Filter Regeneration Prototypes of a new series of high-pressure, brushless DC motor-drive blowers have completed field testing, and DFM ...

  10. Mechanical Properties of Particulate Reinforced Aluminium Alloy Matrix Composite

    SciTech Connect (OSTI)

    Sayuti, M. [Faculty of Engineering, Malikussaleh University of Lhokseumawe, 24300 Aceh (Indonesia); Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor (Malaysia); Sulaiman, S.; Baharudin, B. T. H. T.; Arifin, M. K. A. [Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor (Malaysia); Suraya, S.; Vijayaram, T. R.

    2011-01-17

    This paper discusses the mechanical properties of Titanium Carbide (TiC) particulate reinforced aluminium-silicon alloy matrix composite. TiC particulate reinforced LM6 alloy matrix composites were fabricated by carbon dioxide sand molding process with different particulate weight fraction. Tensile strength, hardness and microstructure studies were conducted to determine the maximum load, tensile strength, modulus of elasticity and fracture surface analysis have been performed to characterize the morphological aspects of the test samples after tensile testing. Hardness values are measured for the TiC reinforced LM6 alloy composites and it has been found that it gradually increases with increased addition of the reinforcement phase. The tensile strength of the composites increased with the increase percentage of TiC particulate.

  11. ARM - Field Campaign - Semi-Continuous OCEC Particulate Measurement

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Send Campaign : Semi-Continuous OCEC Particulate Measurement 2013.06.01 - 2013.11.27 Lead Scientist : Robert Cary For data sets, see below. Abstract The Sunset Laboratory...

  12. ARM - Field Campaign - 1999 Northeast Corridor Ozone & Particulate...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : 1999 Northeast Corridor Ozone & Particulate Study 1999.07.23 - 1999.08.11 Lead...

  13. Zone heated inlet ignited diesel particulate filter regeneration

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Ament, Frank [Troy, MI

    2012-06-26

    An exhaust system that processes exhaust generated by an engine is provided. The system includes: a particulate filter (PF) that is disposed downstream of the engine and that filters particulates from the exhaust; and a grid that includes electrically resistive material that is segmented by non-conductive material into a plurality of zones and wherein the grid is applied to an exterior upstream surface of the PF.

  14. A Standard Soot Generator for Diesel Particulate Filter Testing |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy A Standard Soot Generator for Diesel Particulate Filter Testing A Standard Soot Generator for Diesel Particulate Filter Testing Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT). PDF icon deer07_nickolaus.pdf More Documents & Publications XP-SiC: An Innovative Substrate

  15. Mesoscale simulations of particulate flows with parallel distributed

    Office of Scientific and Technical Information (OSTI)

    Lagrange multiplier technique (Journal Article) | SciTech Connect Journal Article: Mesoscale simulations of particulate flows with parallel distributed Lagrange multiplier technique Citation Details In-Document Search Title: Mesoscale simulations of particulate flows with parallel distributed Lagrange multiplier technique Authors: Kanarska, Y ; Lomov, I ; Antoun, T Publication Date: 2010-09-10 OSTI Identifier: 1120915 Report Number(s): LLNL-JRNL-455392 DOE Contract Number: W-7405-ENG-48

  16. Improvement and Simplification of Diesel Particulate Filter System using a

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Ceria-Based Fuel-Borne Catalyst in Serial Applications | Department of Energy Improvement and Simplification of Diesel Particulate Filter System using a Ceria-Based Fuel-Borne Catalyst in Serial Applications Improvement and Simplification of Diesel Particulate Filter System using a Ceria-Based Fuel-Borne Catalyst in Serial Applications 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Rhodia Electronics and Catalysis PDF icon 2004_deer_macaudiere.pdf More Documents &

  17. Mesoscale Simulations of Particulate Flows with Parallel Distributed

    Office of Scientific and Technical Information (OSTI)

    Lagrange Multiplier Technique (Conference) | SciTech Connect Mesoscale Simulations of Particulate Flows with Parallel Distributed Lagrange Multiplier Technique Citation Details In-Document Search Title: Mesoscale Simulations of Particulate Flows with Parallel Distributed Lagrange Multiplier Technique × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as a

  18. Mesoscale simulations of particulate flows with parallel distributed

    Office of Scientific and Technical Information (OSTI)

    Lagrange multiplier technique (Journal Article) | SciTech Connect Journal Article: Mesoscale simulations of particulate flows with parallel distributed Lagrange multiplier technique Citation Details In-Document Search Title: Mesoscale simulations of particulate flows with parallel distributed Lagrange multiplier technique × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's Office of Scientific and Technical Information (OSTI)

  19. Accelerated Extraction of Diesel Particulate Matter SOF | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Extraction of Diesel Particulate Matter SOF Accelerated Extraction of Diesel Particulate Matter SOF Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT). PDF icon deer07_lewis.pdf More Documents & Publications Chemical Analysis of Soot Using Thermal Desorption/Pyrolysis Gas

  20. Advanced Radio Frequency-Based Sensors for Monitoring Diesel Particulate

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Filter Loading and Regeneration | Department of Energy Radio Frequency-Based Sensors for Monitoring Diesel Particulate Filter Loading and Regeneration Advanced Radio Frequency-Based Sensors for Monitoring Diesel Particulate Filter Loading and Regeneration Presentation given at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. PDF icon deer10_sappok.pdf More Documents & Publications Vehicle Technologies Office Merit

  1. Reducing the Particulate Emission Numbers in DI Gasoline Engines |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy the Particulate Emission Numbers in DI Gasoline Engines Reducing the Particulate Emission Numbers in DI Gasoline Engines Formation of droplets was minimized through optimization of fuel vaporization and distribution avoiding air/fuel zones richer than stoichiometric and temperatures that promote particle formation PDF icon deer10_klindt.pdf More Documents & Publications Bosch Powertrain Technologies Vehicle Emissions Review - 2012 Ethanol Effects on Lean-Burn and

  2. Reduction of Transient Particulate Matter Spikes with Decision Tree Based

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Control | Department of Energy Transient Particulate Matter Spikes with Decision Tree Based Control Reduction of Transient Particulate Matter Spikes with Decision Tree Based Control Using a non-parametric decision tree to measure transient PM could correctly identify 94% of high opacity spikes and used to take targeted action to reduce PM without affecting NOx. PDF icon deer12_brahma.pdf More Documents & Publications New Demands on Heavy Duty Engine Management Systems An Enabling Study

  3. Evaluation of a Partial Flow Dilution System for Transient Particulate

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Matter Emissions | Department of Energy a Partial Flow Dilution System for Transient Particulate Matter Emissions Evaluation of a Partial Flow Dilution System for Transient Particulate Matter Emissions A commercially available partial flow dilution system was evaluated against a constant volume sampling system over a suite of transient engine dynamometer tests. PDF icon deer08_shade.pdf More Documents & Publications Evaluation of the European PMP Methodologies Using Chassis Dynamometer

  4. Experimental Diesel Particulate Filter Capabilities at PNNL | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Diesel Particulate Filter Capabilities at PNNL Experimental Diesel Particulate Filter Capabilities at PNNL Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. PDF icon 2006_deer_gallant.pdf More Documents & Publications Diesel Soot Filter Characterization and Modeling for Advanced Substrates fundamental Modeling and Experimental Studies of Acicular Mullite Diesel

  5. Failure Stress and Apparent Elastic Modulus of Diesel Particulate Filter

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Ceramics | Department of Energy Failure Stress and Apparent Elastic Modulus of Diesel Particulate Filter Ceramics Failure Stress and Apparent Elastic Modulus of Diesel Particulate Filter Ceramics Three established mechanical test specimen geometries and test methods for brittle materials are adapted to DPF architecture to evaluate failure initiation stress and apparent elastic modulus of the ceramics. PDF icon p-15_wereszczak.pdf More Documents & Publications Durability of Diesel Engine

  6. Ultra-Lite Diesel Particulate Filter Cartridge for Reduced Regeneration

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Time and Fuel Consumption | Department of Energy Lite Diesel Particulate Filter Cartridge for Reduced Regeneration Time and Fuel Consumption Ultra-Lite Diesel Particulate Filter Cartridge for Reduced Regeneration Time and Fuel Consumption Self-cleaning ceramic filter cartridges offer the advantage of better fuel economy, faster regeneration time, improved heat transfer, and reduction in manufacturing steps PDF icon deer09_nixdorf.pdf More Documents & Publications Pleated Ceramic Fiber

  7. Value Analysis of Alternative Diesel Particulate Filter (DPF) Substrates

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    for Future Diesel Aftertreatment Systems | Department of Energy Value Analysis of Alternative Diesel Particulate Filter (DPF) Substrates for Future Diesel Aftertreatment Systems Value Analysis of Alternative Diesel Particulate Filter (DPF) Substrates for Future Diesel Aftertreatment Systems DPF products like Acicular Mullite meet multiple needs Provide higher soot mass limits and durability than other materials at the same porosity. PDF icon deer09_majkowski.pdf More Documents &

  8. Diesel Particulate Filters: Market Introducution in Europe | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Filters: Market Introducution in Europe Diesel Particulate Filters: Market Introducution in Europe 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Aaqius and Aaqius PDF icon 2004_deer_seguelong2.pdf More Documents & Publications A New Active DPF System for "Stop and Go" Duty-Cycle Vehicles French perspective on diesel engines & emissions Diesel Particulate Filter: A Success for Faurecia Exhaust Systems

  9. Tailored Acicular Mullite Substrates for Multifunctional Diesel Particulate

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Filters | Department of Energy Acicular Mullite Substrates for Multifunctional Diesel Particulate Filters Tailored Acicular Mullite Substrates for Multifunctional Diesel Particulate Filters SEM analysis showed that ACM DPF can be coated with relatively high catalyst washcoat without significantly affecting the porosity or pore size Therefore, it maintains a low back pressure performance at very high catalyst PDF icon deer09_malanga.pdf More Documents & Publications Future Trends for

  10. Radio Frequency Diesel Particulate Filter Sensor Reduces Fuel Consumption,

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Wins R&D 100 Award | Department of Energy Radio Frequency Diesel Particulate Filter Sensor Reduces Fuel Consumption, Wins R&D 100 Award Radio Frequency Diesel Particulate Filter Sensor Reduces Fuel Consumption, Wins R&D 100 Award October 15, 2014 - 4:51pm Addthis Developed jointly by Corning, the FEV Group, Maguffin Microwave, Detroit Diesel, and Oak Ridge National Laboratory (ORNL) in cooperation with the New York City Department of Sanitation, the Radio Frequency Diesel

  11. Higher modulus compositions incorporating particulate rubber

    DOE Patents [OSTI]

    McInnis, E.L.; Scharff, R.P.; Bauman, B.D.; Williams, M.A.

    1995-01-17

    Rubber particles, to be used as fillers or extenders for various composite polymer systems, are chlorinated by a gas-solid phase reaction with a chlorine-containing gas. A composite polymer containing the chlorinated rubber fillers or extenders exhibits a higher flexural modulus than if prepared using an unchlorinated rubber filler or extender. Chlorination of the rubber particles is carried out by contacting the finely divided rubber particles with a chlorine-containing gas comprising at least about 5 volume percent chlorine. Advantageously, the chlorine can be diluted with air, nitrogen or other essentially inert gases and may contain minor amounts of fluorine. Improved performance is obtained with nitrogen dilution of the chlorine gas over air dilution. Improved polymer composite systems having higher flexural modulus result from the use of the chlorinated rubber particles as fillers instead of unchlorinated rubber particles. 2 figures.

  12. Higher modulus compositions incorporating particulate rubber

    DOE Patents [OSTI]

    Bauman, Bernard D.; Williams, Mark A.; Bagheri, Reza

    1997-12-02

    Rubber particles, to be used as fillers or extenders for various composite polymer systems, are chlorinated by a gas-solid phase reaction with a chlorine-containing gas. A composite polymer containing the chlorinated rubber fillers or extenders exhibits a higher flexural modulus than if prepared using an unchlorinated rubber filler or extender. Chlorination of the rubber particles is carried out by contacting the finely divided rubber particles with a chlorine-containing gas comprising at least about 5 volume percent chlorine. Advantageously, the chlorine can be diluted with air, nitrogen or other essentially inert gases and may contain minor amounts of fluorine. Improved performance is obtained with nitrogen dilution of the chlorine gas over air dilution. Improved polymer composite systems having higher flexural modulus result from the use of the chlorinated rubber particles as fillers instead of unchlorinated rubber particles.

  13. Higher modulus compositions incorporating particulate rubber

    DOE Patents [OSTI]

    Bauman, B.D.; Williams, M.A.; Bagheri, R.

    1997-12-02

    Rubber particles, to be used as fillers or extenders for various composite polymer systems, are chlorinated by a gas-solid phase reaction with a chlorine-containing gas. A composite polymer containing the chlorinated rubber fillers or extenders exhibits a higher flexural modulus than if prepared using an unchlorinated rubber filler or extender. Chlorination of the rubber particles is carried out by contacting the finely divided rubber particles with a chlorine-containing gas comprising at least about 5 volume percent chlorine. Advantageously, the chlorine can be diluted with air, nitrogen or other essentially inert gases and may contain minor amounts of fluorine. Improved performance is obtained with nitrogen dilution of the chlorine gas over air dilution. Improved polymer composite systems having higher flexural modulus result from the use of the chlorinated rubber particles as fillers instead of unchlorinated rubber particles. 2 figs.

  14. Higher modulus compositions incorporating particulate rubber

    DOE Patents [OSTI]

    McInnis, E.L.; Bauman, B.D.; Williams, M.A.

    1996-04-09

    Rubber particles, to be used as fillers or extenders for various composite polymer systems, are chlorinated by a gas-solid phase reaction with a chlorine-containing gas. A composite polymer containing the chlorinated rubber fillers or extenders exhibits a higher flexural modulus than if prepared using an unchlorinated rubber filler or extender. Chlorination of the rubber particles is carried out by contacting the finely divided rubber particles with a chlorine-containing gas comprising at least about 5 volume percent chlorine. Advantageously, the chlorine can be diluted with air, nitrogen or other essentially inert gases and may contain minor amounts of fluorine. Improved performance is obtained with nitrogen dilution of the chlorine gas over air dilution. Improved polymer composite systems having higher flexural modulus result from the use of the chlorinated rubber particles as fillers instead of unchlorinated rubber particles. 2 figs.

  15. Higher modulus compositions incorporating particulate rubber

    DOE Patents [OSTI]

    McInnis, Edwin L.; Scharff, Robert P.; Bauman, Bernard D.; Williams, Mark A.

    1995-01-01

    Rubber particles, to be used as fillers or extenders for various composite polymer systems, are chlorinated by a gas-solid phase reaction with a chlorine-containing gas. A composite polymer containing the chlorinated rubber fillers or extenders exhibits a higher flexural modulus than if prepared using an unchlorinated rubber filler or extender. Chlorination of the rubber particles is carried out by contacting the finely divided rubber particles with a chlorine-containing gas comprising at least about 5 volume percent chlorine. Advantageously, the chlorine can be diluted with air, nitrogen or other essentially inert gases and may contain minor amounts of fluorine. Improved performance is obtained with nitrogen dilution of the chlorine gas over air dilution. Improved polymer composite systems having higher flexural modulus result from the use of the chlorinated rubber particles as fillers instead of unchlorinated rubber particles.

  16. Higher modulus compositions incorporating particulate rubber

    DOE Patents [OSTI]

    McInnis, Edwin L.; Bauman, Bernard D.; Williams, Mark A.

    1996-04-09

    Rubber particles, to be used as fillers or extenders for various composite polymer systems, are chlorinated by a gas-solid phase reaction with a chlorine-containing gas. A composite polymer containing the chlorinated rubber fillers or extenders exhibits a higher flexural modulus than if prepared using an unchlorinated rubber filler or extender. Chlorination of the rubber particles is carried out by contacting the finely divided rubber particles with a chlorine-containing gas comprising at least about 5 volume percent chlorine. Advantageously, the chlorine can be diluted with air, nitrogen or other essentially inert gases and may contain minor amounts of fluorine. Improved performance is obtained with nitrogen dilution of the chlorine gas over air dilution. Improved polymer composite systems having higher flexural modulus result from the use of the chlorinated rubber particles as fillers instead of unchlorinated rubber particles.

  17. Diesel particulate filter (DPF) regeneration by electrical heating of resistive coatings

    DOE Patents [OSTI]

    Williamson, Weldon S. (Malibu, CA); Gonze, Eugene V. (Pinckney, MI)

    2008-12-30

    An exhaust system that processes exhaust generated by an engine includes a diesel particulate filter (DPF) that is disposed downstream of the engine and that filters particulates from the exhaust. An electrical heater is integrally formed in an upstream end of the DPF and selectively heats the exhaust to initiate combustion of the particulates within the exhaust as it passes therethrough. Heat generated by combustion of the particulates induces combustion of particulates within the DPF.

  18. Method for producing dustless graphite spheres from waste graphite fines

    DOE Patents [OSTI]

    Pappano, Peter J (Oak Ridge, TN); Rogers, Michael R (Clinton, TN)

    2012-05-08

    A method for producing graphite spheres from graphite fines by charging a quantity of spherical media into a rotatable cylindrical overcoater, charging a quantity of graphite fines into the overcoater thereby forming a first mixture of spherical media and graphite fines, rotating the overcoater at a speed such that the first mixture climbs the wall of the overcoater before rolling back down to the bottom thereby forming a second mixture of spherical media, graphite fines, and graphite spheres, removing the second mixture from the overcoater, sieving the second mixture to separate graphite spheres, charging the first mixture back into the overcoater, charging an additional quantity of graphite fines into the overcoater, adjusting processing parameters like overcoater dimensions, graphite fines charge, overcoater rotation speed, overcoater angle of rotation, and overcoater time of rotation, before repeating the steps until graphite fines are converted to graphite spheres.

  19. Immobilization of Rocky Flats Graphite Fines Residues

    SciTech Connect (OSTI)

    Rudisill, T. S.

    1998-11-06

    The Savannah River Technology Center (SRTC) is developing an immobilization process for graphite fines residues generated during nuclear materials production activities at the Rocky Flats Environmental Technology Site (Rocky Flats). The continued storage of this material has been identified as an item of concern. The residue was generated during the cleaning of graphite casting molds and potentially contains reactive plutonium metal. The average residue composition is 73 wt percent graphite, 15 wt percent calcium fluoride (CaF2), and 12 wt percent plutonium oxide (PuO2). Approximately 950 kilograms of this material are currently stored at Rocky Flats. The strategy of the immobilization process is to microencapsulate the residue by mixing with a sodium borosilicate (NBS) glass frit and heating at nominally 700 degrees C. The resulting waste form would be sent to the Waste Isolation Pilot Plant (WIPP) for disposal. Since the PuO2 concentration in the residue averages 12 wt percent, the immobilization process was required to meet the intent of safeguards termination criteria by limiting plutonium recoverability based on a test developed by Rocky Flats. The test required a plutonium recovery of less than 4 g/kg of waste form when a sample was leached using a nitric acid/CaF2 dissolution flowsheet. Immobilization experiments were performed using simulated graphite fines with cerium oxide (CeO2) as a surrogate for PuO2 and with actual graphite fines residues. Small-scale surrogate experiments demonstrated that a 4:1 frit to residue ratio was adequate to prevent recovery of greater than 4 g/kg of cerium from simulated waste forms. Additional experiments investigated the impact of varying concentrations of CaF2 and the temperature/heating time cycle on the cerium recovery. Optimal processing conditions developed during these experiments were subsequently demonstrated at full-scale with surrogate materials and on a smaller scale using actual graphite fines.In general, the recovery of cerium from the full-scale waste forms was higher than for smaller scale experiments. The presence of CaF2 also caused a dramatic increase in cerium recovery not seen in the small-scale experiments. However, the results from experiments with actual graphite fines were encouraging. A 4:1 frit to residue ratio, a temperature of 700 degrees C, and a 2 hr heating time produced waste forms with plutonium recoveries of 4 plus/minus 1 g/kg. With an increase in the frit to residue ratio, waste forms fabricated at this scale should meet the Rocky Flats product specification. The scale-up of the waste form fabrication process to nominally 3 kg is expected to require a 5:1 to 6:1 frit to residue ratio and maintaining the waste form centerline temperature at 700 degrees C for 2 hr.

  20. DEVELOPMENT OF A NOVEL FINE COAL CLEANING SYSTEM

    SciTech Connect (OSTI)

    Manoj K. Mohanty

    2005-06-01

    The goal of the proposed project was to develop a novel fine coal separator having the ability to clean 1 mm x 0 size coal in a single processing unit. The novel fine coal separator, named as EG(Enhanced Gravity) Float Cell, utilizes a centrifugal field to clean 1 mm x 250 micron size coal, whereas a flotation environment to clean minus 250 micron coal size fraction. Unlike a conventional enhanced gravity concentrator, which rotates to produce a centrifugal field requiring more energy, the EG Float Cell is fed with a tangential feed slurry to generate an enhanced gravity field without any rotating part. A prototype EG Float Cell unit having a maximum diameter of 60 cm (24 inch) was fabricated during the first-half of the project period followed by a series of exploratory tests to make suitable design modification. Test data indicated that there was a significant concentration of coarse heavy materials in the coarse tailings discharge of the EG Float Cell. The increase in weight (%) of 1 mm x 250 micron (16 x 60 mesh) size fraction from 48.9% in the feed to 72.2% in the coarse tailings discharge and the corresponding increase in the ash content from 56.9% to 87.0% is indicative of the effectiveness of the enhanced gravity section of the EG Float Cell. However, the performance of the flotation section needs to be improved. Some of the possible design modifications may include more effective air sparging system for the flotation section to produce finer bubbles and a better wash water distributor.

  1. Call for Proposal Submissions

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Call for Proposal Submissions The Request for Proposals for the JLF User Program for experiments in Calendar Year 2016 has closed. The Request for Proposals for experiments in Calendar Year 2017 will open in the summer of 2016

  2. Past Calls for Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposals Past Calls for Proposals 2015 Call for Proposals to use NERSC Resources The 2015 Call for Proposals to use NERSC Resources opens August 13, 2014, and closes September 22, 2014. Read More » 2014 Call for Proposals to use NERSC Resources The Office of Science of the U. S. Department of Energy (DOE) solicits proposals for 2014 allocations of high performance computing resources at the National Energy Research Scientific Computing Center (NERSC) at Lawrence Berkeley National Laboratory.

  3. LANSCE | User Resources | Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposals LANSCE accepts proposals for the Lujan Neutron Scattering Center, Proton Radiography (pRad) and the Weapons Neutron Research Facility (WNR). Calls for proposals are typically issued twice a year, for each run cycle of the accelerator. Deadlines will be posted. Lujan Center pRad WNR Lujan Center: Nuclear and Materials Research FY16 Call for Proposalsis closed. Proposal Submission Read the Lujan Center call for proposals. Deadline: July 24 , 2015, 5:00 p.m. (MDT) Unclassified Proposal

  4. 2015 Electricity Form Proposals

    U.S. Energy Information Administration (EIA) Indexed Site

    Proposed Changes to Electricity and Renewable (Photovoltaic) Survey Forms November 19, 2015 In early 2016 the U.S. Energy Information Administration (EIA) will formally propose ...

  5. Trident Call for Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Call for Proposals Trident Call for Proposals Enabling world-class science in high-energy density physics and fundamental laser-matter interactions Contact Operations Team...

  6. Oil shale fines process developments in Brazil

    SciTech Connect (OSTI)

    Lisboa, A.C.; Nowicki, R.E. ); Piper, E.M. )

    1989-01-01

    The Petrobras oil shale retorting process, utilizes the particle range of +1/4 inch - 3 1/2 inches. The UPI plant in Sao Mateus do Sul has over 106,000 hours of operation, has processed over 6,200,000 metric tons of shale and has produced almost 3,000,000 barrels of shale oil. However, the nature of the raw oil shale is such that the amount of shale less than 1/4 inch that is mined and crushed and returned to the mine site is about 20 percent, thereby, increasing the cost of oil produced by a substantial number. Petrobras has investigated several systems to process the fines that are not handled by the 65 MTPH UPI plant and the 260 MTPH commercial plant. This paper provides an updated status of each of these processes in regard to the tests performed, potential contributions to an integrated use of the oil shale mine, and future considerations.

  7. Method of making fine-grained triaminotrinitrobenzene

    DOE Patents [OSTI]

    Benziger, Theodore M. (Santa Fe, NM)

    1984-01-01

    A method of forming a fine-grained species of the insensitive high explosive sym-triaminotrinitrobenzene (TATB) without grinding. In accordance with the method, 1,3,5-trichloro-2,4,6-trinitrobenzene (TCTNB) is aminated by reaction with gaseous ammonia in an emulsion of toluene in water. The ratio of water to toluene in the emulsion is selected so that toluene is the dispersed phase in the emulsion. The size of the dispersed TCTNB-containing toluene droplets determines the particle size of the resulting TATB. The emulsion is preferably formed with an emulsifier such as ammonium oleate, which may be generated in situ from oleic acid, and stabilized with a protective colloid such as polyvinyl alcohol.

  8. Method of making fine-grained triaminotrinitrobenzene

    DOE Patents [OSTI]

    Benziger, T.M.

    1983-07-26

    A method is given for forming a fine-grained species of the insensitive high explosive sym-triaminotrinitrobenzene (TATB) without grinding. In accordance with the method, 1,3,5-trichloro-2,4,6-trinitrobenzene (TCTNB) is aminated by reaction with gaseous ammonia in an emulsion of toluene in water. The ratio of water to toluene in the emulsion is selected so that toluene is the dispersed phase in the emulsion. The size of the dispersed TCTNB-containing toluene droplets determines the particle size of the resulting TATB. The emulsion is preferably formed with an emulsifier such as ammonium oleate, which may be generated in situ from oleic acid, and stabilized with a protective colloid such as polyvinyl alcohol.

  9. Biodiesel Fuel Property Effects on Particulate Matter Reactivity

    SciTech Connect (OSTI)

    Williams, A.; Black, S.; McCormick, R. L.

    2010-06-01

    Controlling diesel particulate emissions to meet the 2007 U.S. standard requires the use of a diesel particulate filter (DPF). The reactivity of soot, or the carbon fraction of particulate matter, in the DPF and the kinetics of soot oxidation are important in achieving better control of aftertreatment devices. Studies showed that biodiesel in the fuel can increase soot reactivity. This study therefore investigated which biodiesel fuel properties impact reactivity. Three fuel properties of interest included fuel oxygen content and functionality, fuel aromatic content, and the presence of alkali metals. To determine fuel effects on soot reactivity, the performance of a catalyzed DPF was measured with different test fuels through engine testing and thermo-gravimetric analysis. Results showed no dependence on the aromatic content or the presence of alkali metals in the fuel. The presence and form of fuel oxygen was the dominant contributor to faster DPF regeneration times and soot reactivity.

  10. Method and apparatus for injecting particulate media into the ground

    DOE Patents [OSTI]

    Dwyer, Brian P.; Dwyer, Stephen F.; Vigil, Francine S.; Stewart, Willis E.

    2004-12-28

    An improved method and apparatus for injecting particulate media into the ground for constructing underground permeable reactive barriers, which are used for environmental remediation of subsurface contaminated soil and water. A media injector sub-assembly attached to a triple wall drill string pipe sprays a mixture of active particulate media suspended in a carrier fluid radially outwards from the sub-assembly, at the same time that a mixing fluid is sprayed radially outwards. The media spray intersects the mixing spray at a relatively close distance from the point of injection, which entrains the particulate media into the mixing spray and ensures a uniform and deep dispersion of the active media in the surrounding soil. The media injector sub-assembly can optionally include channels for supplying compressed air to an attached down-the-hole hammer drive assembly for use during drilling.

  11. Composition and chemistry of particulates from the Tidd Clean Coal Demonstration Plant pressurized fluidized bed combustor, cyclone, and filter vessel

    SciTech Connect (OSTI)

    Smith, D.H.; Grimm, U.; Haddad, G.

    1995-12-31

    In a Pressurized Fluidized Bed Combustion (PFBC)/cyclone/filter system ground coal and sorbent are injected as pastes into the PFBC bed; the hot gases and entrained fine particles of ash and calcined or reacted sorbent are passed through a cyclone (which removes the larger entrained particles); and the very-fine particles that remain are then filtered out, so that the cleaned hot gas can be sent through a non-ruggedized hot-gas turbine. The 70 MWe Tidd PFBC Demonstration Plant in Brilliant, Ohio was completed in late 1990. The initial design utilized seven strings of primary and secondary cyclones to remove 98% of the particulate matter. However, the Plant also included a pressurized filter vessel, placed between the primary and secondary cyclones of one of the seven strings. Coal and dolomitic limestone (i.e, SO{sub 2} sorbent) of various nominal sizes ranging from 12 to 18 mesh were injected into the combustor operating at about 10 atm pressure and 925{degree}C. The cyclone removed elutriated particles larger than about 0.025 mm, and particles larger than ca. 0.0005 mm were filtered at about 750{degree}C by ceramic candle filters. Thus, the chemical reaction times and temperatures, masses of material, particle-size distributions, and chemical compositions were substantially different for particulates removed from the bed drain, the cyclone drain, and the filter unit. Accordingly, we have measured the particle-size distributions and concentrations of calcium, magnesium, sulfur, silicon, and aluminum for material taken from the three units, and also determined the chemical formulas and predominant crystalline forms of the calcium and magnesium sulfate compounds formed. The latter information is particularly novel for the filter-cake material, from which we isolated the ``new`` compound Mg{sub 2}Ca(SO{sub 4}){sub 3}.

  12. Trident Call for Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Trident Call for Proposals Trident Call for Proposals Enabling world-class science in high-energy density physics and fundamental laser-matter interactions Contact Operations Team Leader Randy Johnson (505) 665-5089 Email Trident Governing Board Contact Ray Leeper (505) 667-3653 Email Call for Proposals 2015-2016 The Trident Laser Facility is accepting proposals for experiments to be performed at the facility during the period October 2015 through September 2016. All proposals submitted are

  13. PROPOSAL PREPARATION INSTRUCTIONS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Contract No. DE-AC27-08RV14800 Modification No. A015 PROPOSAL PREPARATION INSTRUCTIONS 1. INTRODUCTION This document contains instructions to the contractor for the preparation of a proposal in response to the modification of the contract which defines work that will be funded by and performed under the provisions of the American Recovery and Reinvestment Act (Recovery Act). The contractor shall provide a written proposal consisting of a Technical Proposal and a Cost and Fee Proposal. The

  14. OFFEROR'S PROPOSAL LETTER

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    RFP OPL (Rev. 4, 8/4/15) RFP Offeror's Proposal Letter Initials: Page 1 of 4 OFFEROR'S PROPOSAL LETTER In response to the Solicitation, also known as request for proposal (RFP), referenced below, and in accordance with the accompanying solicitation provisions, any addenda thereto and the terms and conditions of the proposed subcontract, the Offeror identified below (hereinafter referred to as OFFEROR) proposes to furnish all plant, labor, technical and professional services, supervision,

  15. NETL: Unsolicited Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Unsolicited Proposals The Department of Energy's (DOE's) central point of receipt for all Unsolicited Proposals is the National Energy Technology Laboratory (NETL) as outlined in the link below which includes all DOE Program Research Areas. The "Guide for the Submission of Unsolicited Proposals" provides more information on the unsolicited proposal process. DOE encourages organizations and individuals to submit self-generated, unsolicited proposals that are relevant to DOE's research

  16. EIS-0186: Proposed Healy Clean Coal Project, Healy, AK

    Office of Energy Efficiency and Renewable Energy (EERE)

    This environmental impact statement analyzes two proposed technologies. Under the Department of Energy's third solicitation of the Clean Coal Technology Program, the Alaska Industrial Development and Export Authority conceived, designed, and proposed the Healy Clean Coal Project. The project, a coal-fired power generating facility, would provide the necessary data for evaluating the commercial readiness of two promising technologies for decreasing emissions of sulfur dioxide, oxides of nitrogen, and particulate matter. DOE prepared this statement to analyze potential impacts of their potential support for this project.

  17. For Cape Wind, Summer Breeze Makes Offshore Wind Feel Fine |...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    For Cape Wind, Summer Breeze Makes Offshore Wind Feel Fine For Cape Wind, Summer Breeze Makes ... one of the world's largest wind farms, the Department's Loan Programs Office ...

  18. An efficient process for recovery of fine coal from tailings of coal washing plants

    SciTech Connect (OSTI)

    Cicek, T.; Cocen, I.; Engin, V.T.; Cengizler, H.

    2008-07-01

    Gravity concentration of hard lignites using conventional jigs and heavy media separation equipment is prone to produce coal-rich fine tailings. This study aims to establish a fine coal recovery process of very high efficiency at reasonable capital investment and operational costs. The technical feasibility to upgrade the properties of the predeslimed fine refuse of a lignite washing plant with 35.9% ash content was investigated by employing gravity separation methods. The laboratory tests carried out with the combination of shaking table and Mozley multi-gravity separator (MGS) revealed that the clean coal with 18% ash content on dry basis could be obtained with 58.9% clean coal recovery by the shaking table stage and 4.1% clean coal recovery by MGS stage, totaling to the sum of 63.0% clean coal recovery from a predeslimed feed. The combustible recovery and the organic efficiency of the shaking table + MGS combination were 79.5% and 95.5%, respectively. Based on the results of the study, a flow sheet of a high-efficiency fine coal recovery process was proposed, which is also applicable to the coal refuse pond slurry of a lignite washing plant.

  19. EERE Success Story-Radio Frequency Diesel Particulate Filter Sensor

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Reduces Fuel Consumption, Wins R&D 100 Award | Department of Energy Radio Frequency Diesel Particulate Filter Sensor Reduces Fuel Consumption, Wins R&D 100 Award EERE Success Story-Radio Frequency Diesel Particulate Filter Sensor Reduces Fuel Consumption, Wins R&D 100 Award October 15, 2014 - 4:51pm Addthis Developed jointly by Corning, the FEV Group, Maguffin Microwave, Detroit Diesel, and Oak Ridge National Laboratory (ORNL) in cooperation with the New York City Department of

  20. Concentrations and Size Distributions of Particulate Matter Emissions from

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Catalyzed Trap-Equipped Heavy-duty Diesel Vehicles Operating on Ultra-low Sulfur EC-D Fuel | Department of Energy Concentrations and Size Distributions of Particulate Matter Emissions from Catalyzed Trap-Equipped Heavy-duty Diesel Vehicles Operating on Ultra-low Sulfur EC-D Fuel Concentrations and Size Distributions of Particulate Matter Emissions from Catalyzed Trap-Equipped Heavy-duty Diesel Vehicles Operating on Ultra-low Sulfur EC-D Fuel 2002 DEER Conference Presentation: West Virginia

  1. Call for Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposals | FY2016 pRad: Call for Proposals Proposal Submission Deadline: 5:00 pm (MST) Wednesday, March 16, 2016. PAC Review: week of April 4th, 2016. Call for Proposals: Proton Radiography FY17 The Los Alamos Neutron Science Center (LANSCE) is issuing a Call for Proposals for experiments for the Proton Radiography Facility (pRad) during Fiscal Year 2017. Proposals for FY18 experiments that will not be ready to be performed FY17 will be considered. The proton radiography facility uses 800 MeV

  2. LANSCE | User Resources | Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposals | FY2017 pRad: Call for Proposals Proposal Submission Deadline: 5:00 pm (MST) Wednesday, March 16, 2016. PAC Review: week of April 4th, 2016. Call for Proposals: Proton Radiography FY17 The Los Alamos Neutron Science Center (LANSCE) is issuing a Call for Proposals for experiments for the Proton Radiography Facility (pRad) during Fiscal Year 2017. Proposals for FY18 experiments that will not be ready to be performed FY17 will be considered. The proton radiography facility uses 800 MeV

  3. Imaging of Diesel Particulate Filters using a High-Flux Neutron...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Imaging of Diesel Particulate Filters using a High-Flux Neutron Source Imaging of Diesel Particulate Filters using a High-Flux Neutron Source Detailed images of deposits identified...

  4. Testing an Active Diesel Particulate Filter on a 2-Cycle Marine...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    an Active Diesel Particulate Filter on a 2-Cycle Marine Engine Testing an Active Diesel Particulate Filter on a 2-Cycle Marine Engine Presentation given at DEER 2006, August 20-24, ...

  5. 2014 ALCC Proposals Due

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ALCC Proposals Due February 3, 2014 2014 DOE ALCC Proposals Due February 3 December 23, 2013 by Francesca Verdier (0 Comments) DOE's 2014 call for its ASCR Leadership Computing...

  6. Submit CSES Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Submit Proposals Submit CSES Proposals High quality, cutting-edge science in the areas of astrophysics, space physics, solid planetary geoscience, and climate science. Contact Director Reiner Friedel (505) 665-1936 Email Professional Staff Assistant Georgia D. Sanchez (505) 665-0855 Email FY16 Deadline to submit CSES Emerging Ideas proposals: Friday, March 11, 2016 FY16 Deadline to submit CSES Student and Postdoctoral Fellow proposals: Monday, April 4, 2016 The Center for Space and Earth Science

  7. ARM - Funded Research Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Research Proposals Science Research Themes Research Highlights Journal Articles Collaborations Atmospheric System Research (ASR) Earth System Modeling Regional &...

  8. A New CFD Model for understanding and Managing Diesel Particulate Filter

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Regeneration | Department of Energy CFD Model for understanding and Managing Diesel Particulate Filter Regeneration A New CFD Model for understanding and Managing Diesel Particulate Filter Regeneration PDF icon 2004_deer_hou.pdf More Documents & Publications Substrate Studies of an Electrically-Assisted Diesel Particulate Filter Diesel Particulate Filter: A Success for Faurecia Exhaust Systems Vehicle Evaluation of Downsized Dow ACM DPF

  9. The State of the Science in Diesel Particulate Control | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy The State of the Science in Diesel Particulate Control The State of the Science in Diesel Particulate Control 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_muntean.pdf More Documents & Publications Method Development: Identification of the Soluble Organic Fraction of Particulate Matter on DPF Soot Aftertreatment Research Prioritization: A CLEERS Industrial Survey Development of a Sub-Grid Model of a Diesel Particulate Filter:

  10. Electrically heated particulate matter filter with recessed inlet end plugs

    DOE Patents [OSTI]

    Gonze, Eugene V. (Pinckney, MI); Ament, Frank (Troy, MI)

    2012-02-21

    A particulate matter (PM) filter includes filter walls having inlet ends and outlet ends. First adjacent pairs of the filter walls define inlet channels. Second adjacent pairs of the filter walls define outlet channels. Outlet end plugs are arranged in the inlet channels adjacent to the output ends. Inlet end plugs arranged in the outlet channels spaced from the inlet ends.

  11. Removal of residual particulate matter from filter media

    DOE Patents [OSTI]

    Almlie, Jay C; Miller, Stanley J

    2014-11-11

    A method for removing residual filter cakes that remain adhered to a filter after typical particulate removal methodologies have been employed, such as pulse-jet filter element cleaning, for all cleanable filters used for air pollution control, dust control, or powder control.

  12. Electrically heated particulate filter diagnostic systems and methods

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2009-09-29

    A system that diagnoses regeneration of an electrically heated particulate filter is provided. The system generally includes a grid module that diagnoses a fault of the grid based on at least one of a current signal and a voltage signal. A diagnostic module at least one of sets a fault status and generates a warning signal based on the fault of the grid.

  13. Comparison of Particulate Collection in Probes and on Filters

    SciTech Connect (OSTI)

    Eaton, J.M.; Humphreys, M.P.

    2001-06-14

    Major radionuclide emissions from the Department of Energy's Y-12 National Security Complex are nuclides of uranium which are emitted as a particulate. The radionuclide NESHAP regulation requires stack sampling to be conducted in accordance with ANST Standard N13.1, 1969. Appendix B of this standard requires in every case where sampling delivery lines are used that an evaluation should be made of deposition in these lines. A number of Y-12 Complex stacks are fitted with continuous samplers which draw particulate laden air through a probe and across a sample filter. One approach to evaluate line loss as required by the ANSI standard is to establish a representative factor that is used for all subsequent sampling efforts. Another approach is to conduct a routine probe wash procedure on an ongoing basis to account for line losses. In 1991, Y-12 National Security Complex personnel began routine probe washes as part of their sample collection procedure. Since then, 50-80 stacks have been sampled on a near continuous basis and probe washes have been conducted quarterly. Particulate collection in probes versus particulate collection on filters is recorded as a probe factor and probe factor trends for a 10-year period are available.

  14. Inductively heated particulate matter filter regeneration control system

    DOE Patents [OSTI]

    Gonze, Eugene V; Paratore Jr., Michael J; Kirby, Kevin W; Phelps, Amanda; Gregoire, Daniel J

    2012-10-23

    A system includes a particulate matter (PM) filter with an upstream end for receiving exhaust gas, a downstream end and zones. The system also includes a heating element. A control module selectively activates the heating element to inductively heat one of the zones.

  15. Fuel-Neutral Studies of Particulate Matter Transport Emissions | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy 2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ace056_stewart_2012_o.pdf More Documents & Publications Characterization of Pre-Commercial Gasoline Engine Particulates Through Advanced Aerosol Methods

  16. Fuel-Neutral Studies of Particulate Matter Transport Emissions | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy 1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon ace056_stewart_2011_o.pdf More Documents & Publications Fuel-Neutral Studies of Particulate Matter Transport Emissions

  17. Electrically heated particulate filter regeneration methods and systems for hybrid vehicles

    DOE Patents [OSTI]

    Gonze, Eugene V. (Pinckney, MI); Paratore, Jr., Michael J. (Howell, MI)

    2010-10-12

    A control system for controlling regeneration of a particulate filter for a hybrid vehicle is provided. The system generally includes a regeneration module that controls current to the particulate filter to initiate regeneration. An engine control module controls operation of an engine of the hybrid vehicle based on the control of the current to the particulate filter.

  18. Full Proposal Instructions_2015

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Full Proposal Instructions NIF Facility Time Proposal Please prepare your full proposal according to the following instructions. Append biographical sketches(CVs) for the Principal Investigator (PI) and no more than 5 additional key team members to the end of this proposal. Submission Deadlines: Save the entire document as a single file in pdf format, and submit via the Web submission tool before 11:59 p.m. on September 1, 2015, PDT. I. COVER SHEET: (1 page) 1) Please provide the proposal title,

  19. LANSCE | User Resources | Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposals dotline Lujan Center: Nuclear and Materials Research FY16 Call for Proposals Proposal Submission: https://www.lanl.gov/orgs/lansce/ Lujan Center Call for Proposals is Open. Deadline: July 24, 2015 at 5:00 pm (MDT). lansce.lanl.gov lansce.lanl.gov/lujan The Los Alamos Neutron Science Center (LANSCE) is issuing a Call for Proposals for experiments to be run at the Lujan Center's moderated neutron source during Fiscal Year 2016 (October 5, 2015, - February 6, 2016). Three nuclear science

  20. Fine and ultrafine particles generated during fluidized bed combustion of different solid fuels

    SciTech Connect (OSTI)

    Urciuolo, M.; Barone, A.; D'Alessio, A.; Chirone, R.

    2008-12-15

    The paper reports an experimental study carried out with a 110-mm ID fluidized bed combustor focused on the characterization of particulates formation/emission during combustion of coal and non-fossil solid fuels. Fuels included: a bituminous coal, a commercial predried and granulated sludge (GS), a refuse-derived fuel (RDF), and a biomass waste (pine seed shells). Stationary combustion experiments were carried out analyzing the fate of fuel ashes. Fly ashes collected at the combustor exhaust were characterized both in terms of particle size distribution and chemical composition, with respect to both trace and major elements. Tapping-Mode Atomic Force Microscopy (TM-AFM) technique and high-efficiency cyclone-type collector devices were used to characterize the size and morphology of the nanometric-and micronic-size fractions of fly ash emitted at the exhaust respectively. Results showed that during the combustion process: I) the size of the nanometric fraction ranges between 2 and 65 nm; ii) depending on the fuel tested, combustion-assisted attrition or the production of the primary ash particles originally present in the fuel particles, are responsible of fine particle generation. The amount in the fly ash of inorganic compounds is larger for the waste-derived fuels, reflecting the large inherent content of these compounds in the parent fuels.

  1. Enhanced control of fine particles following Title IV coal switching and NOx control

    SciTech Connect (OSTI)

    Durham, M.D.; Baldrey, K.E.; Bustard, C.J.; Martin, C.

    1997-12-31

    Electrostatic precipitators (ESPs) serve as the primary particle control devices for a majority of coal-fired power generating units in the United States. ESPs are used to collect particulate matter that range in size from less than one micrometer in diameter to several hundred micrometers. Many of the options that utilities will use to respond to Title IV of the 1990 Clean Air Act Amendments will result in changes to the ash that will be detrimental to the performance of the ESP causing increased emissions of fine particles and higher opacity. For example, a switch to low-sulfur coal significantly increases particle resistivity while low-NO{sub x} burners increase the carbon content of ashes. Both of these changes could result in derating of the boiler to comply with emissions standards. ADA has developed a chemical additive that is designed to improve the operation of ESI`s to bring these systems into compliance operation without the need for expensive capital modifications. The additives provide advantages over competing technologies in terms of low capital cost, easy to handle chemicals, and relatively non-toxic chemicals. In addition, the new additive is insensitive to ash chemistry which will allow the utility complete flexibility to select the most economical coal. Results from full-scale and pilot plant demonstrations are reported.

  2. Progression of soot cake layer properties during the systematic regeneration of diesel particulate filters measured with neutron tomography

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Toops, Todd J.; Pihl, Josh A.; Finney, Charles E. A.; Gregor, Jens; Bilheux, Hassina

    2015-01-16

    Although particulate filters (PFs) have been a key component of the emission control system for modern diesel engines, there remain significant questions about the basic regeneration behavior of the filters and how it changes with accumulation of increasing soot layers. This effort describes a systematic deposition and regeneration of particulate matter in 25-mm diameter 76-mm long wall-flow PFs composed of silicon carbide (SiC) material. The initial soot distributions were analyzed for soot cake thickness using a nondestructive neutron imaging technique. With the PFs intact, it was then possible to sequentially regenerate the samples and reanalyze them, which was performedmoreafter nominal 20, 50, and 70 % regenerations. The loaded samples show a relatively uniform distribution of particulate with an increasing soot cake thickness and nearly identical initial density of 70 mg/cm3. Throughout regeneration, the soot cake thickness initially decreases significantly while the density increases to 8090 mg/cm3. After ~50 % regeneration, the soot cake thickness stays relatively constant, but instead, the density decreases as pores open up in the layer (~35 mg/cm3 at 70 % regeneration). Complete regeneration initially occurs at the rear of the PF channels. With this information, a conceptual model of the regeneration is proposed.less

  3. General User Proposals (GUPs)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposals (GUPs) Print General Users are granted beam time through a peer review proposal process. They may use beamlines and endstations provided by the ALS or the Participating Research Team (PRT) that operates the beamline. Before Submitting a Proposal Review the ALS Beamlines Directory to learn about the research capabilities of individual beamlines at the ALS. Contact the beamline scientist or the local contact listed in the tables, for additional information about the beamline. You can

  4. General User Proposals (GUPs)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    General User Proposals (GUPs) Print General Users are granted beam time through a peer review proposal process. They may use beamlines and endstations provided by the ALS or the Participating Research Team (PRT) that operates the beamline. Before Submitting a Proposal Review the ALS Beamlines Directory to learn about the research capabilities of individual beamlines at the ALS. Contact the beamline scientist or the local contact listed in the tables, for additional information about the

  5. Requests for Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Requests for Proposals Requests for Proposals World-class experts and capabilities countering all aspects of explosive threats, and aiming predominantly at enhanced detection capabilities. What LACED cannot do LACED is prohibited by US Federal Law from responding to RFPs on its own or as a co-respondent. Organizations responding to a RFP can reference a "unique" capability or service available at LACED in an RFP proposal response. Such a reference should specify that LACED

  6. Categories for CSES Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposal Categories Categories for CSES Proposals High quality, cutting-edge science in the areas of astrophysics, space physics, solid planetary geoscience, and climate science. Contact Director Reiner Friedel (505) 665-1936 Email Professional Staff Assistant Georgia D. Sanchez (505) 665-0855 Email CSES offers several program elements. New to CSES is a more flexible proposal schedule - not all program elements are offered in each call, and some program elements have calls more than once per

  7. Proposed Rules Federal Register

    Energy Savers [EERE]

    5383 Vol. 81, No. 21 Tuesday, February 2, 2016 DEPARTMENT OF ENERGY 10 CFR Part 900 RIN 1901-AB36 Coordination of Federal Authorizations for Electric Transmission Facilities AGENCY: Office of Electricity Delivery and Energy Reliability, Department of Energy. ACTION: Notice of proposed rulemaking. SUMMARY: The Department of Energy (DOE) proposes to amend its regulations for the timely coordination of Federal Authorizations for proposed interstate electric transmission facilities pursuant to

  8. General User Proposals (GUPs)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    operates the beamline. Before Submitting a Proposal Review the ALS Beamlines Directory to learn about the research capabilities of individual beamlines at the ALS. Contact the...

  9. General User Proposal Scores

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposal Scores Print Scoring Proposals are scored on a scale of 1 to 5, with 1 being the best score and 5 the worst. Reviewers are requested to use the following ranking schema: Must do High Priority Medium Priority Low priority Don't do Beam time is assigned based on each proposal's score in relation to all other proposals for a given beamline. For beamlines where beam time requests exceed available beam time, a cutoff score is assigned after which no beam time is allocated. Individual Beam

  10. Categories for IGPPS Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    on an independent, revolutionary scientific idea that has Los Alamos National Laboratory mission relevance. The proposed work must not be related to the programmatic research...

  11. LANSCE | User Resources | Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    User Resources dotline 2015 WNR Call for Proposals Proposal Submission WNR call for proposals opens April 6, 2015. Deadline: Friday, May 15, 2015, 5:00 pm (MDT). PAC: June 4 and 5, 2015. lansce.lanl.gov wnr.lanl.gov The Los Alamos Neutron Science Center (LANSCE) is issuing a Call for Proposals for the WNR facility for run cycle September - December, 2015. The Neutron and Nuclear Science Research Facility (WNR) provides neutron and proton beams, as well as detector arrays for basic, applied,

  12. Proposals and Design Reports

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposals and Design Reports Proposals and Design Reports Proposal (1/2/04) Proposal Addendum (29/3/04) Physics Case and Detector Technology Report (12/04) Technical Design Report (7/06) Reviews DOE CD-4 DOE 2008 DOE CD-3b CD-3b Readiness DOE CD-1/2/3a CD-2/3a Readiness CD-1 Readiness PAC Report (4/05) Approvals FNAL PAC Approval: April 15, 2004 DOE Critical Decision 1,2,3a (Performance Baseline, Construction Start) Approval: March 30, 2007 DOE Critical Decision 4 (Project Completion) Approval:

  13. Fluidizable particulate materials and methods of making same

    DOE Patents [OSTI]

    Gupta, Raghubir P. (Durham, NC)

    1999-01-01

    The invention provides fluidizable, substantially spherical particulate material of improved attrition resistance having an average particle size from about 100 to about 400 microns useful as sorbents, catalysts, catalytic supports, specialty ceramics or the like. The particles are prepared by spray drying a slurry comprising inorganic starting materials and an organic binder. Exemplary inorganic starting materials include mixtures of zinc oxide with titanium dioxide, or with iron oxide, alumina or the like. Exemplary organic binders include polyvinyl alcohol, hydroxypropylemethyl cellulose, polyvinyl acetate and the like. The spray dried particles are heat treated at a first temperature wherein organic binder material is removed to thereby provide a porous structure to the particles, and thereafter the particles are calcined at a higher temperature to cause reaction of the inorganic starting materials and to thereby form the final inorganic particulate material.

  14. Design characteristics for facilities which process hazardous particulate

    SciTech Connect (OSTI)

    Abeln, S.P.; Creek, K.; Salisbury, S.

    1998-12-01

    Los Alamos National Laboratory is establishing a research and processing capability for beryllium. The unique properties of beryllium, including light weight, rigidity, thermal conductivity, heat capacity, and nuclear properties make it critical to a number of US defense and aerospace programs. Concomitant with the unique engineering properties are the health hazards associated with processing beryllium in a particulate form and the potential for worker inhalation of aerosolized beryllium. Beryllium has the lowest airborne standard for worker protection compared to all other nonradioactive metals by more than an order of magnitude. This paper describes the design characteristics of the new beryllium facility at Los Alamos as they relate to protection of the workforce. Design characteristics to be reviewed include; facility layout, support systems to minimize aerosol exposure and spread, and detailed review of the ventilation system design for general room air cleanliness and extraction of particulate at the source.

  15. Fluidizable particulate materials and methods of making same

    SciTech Connect (OSTI)

    Gupta, R.P.

    1999-10-26

    The invention provides fluidizable, substantially spherical particulate material of improved attrition resistance having an average particle size from about 100 to about 400 microns useful as sorbents, catalysts, catalytic supports, specialty ceramics or the like. The particles are prepared by spray drying a slurry comprising inorganic starting materials and an organic binder. Exemplary inorganic starting materials include mixtures of zinc oxide with titanium dioxide, or with iron oxide, alumina or the like. Exemplary organic binders include polyvinyl alcohol, hydroxypropylemethyl cellulose, polyvinyl acetate and the like. The spray dried particles are heat treated at a first temperature wherein organic binder material is removed to thereby provide a porous structure to the particles, and thereafter the particles are calcined at a higher temperature to cause reaction of the inorganic starting materials and to thereby form the final inorganic particulate material.

  16. Clean Production of Coke from Carbonaceous Fines

    SciTech Connect (OSTI)

    Craig N. Eatough

    2004-11-16

    In order to produce steel (a necessary commodity in developed nations) using conventional technologies, you must have metallurgical coke. Current coke-making technology pyrolyzes high-quality coking coals in a slot oven, but prime coking coals are becoming more expensive and slot ovens are being shut-down because of age and environmental problems. The United States typically imports about 4 million tons of coke per year, but because of a world-wide coke scarcity, metallurgical coke costs have risen from about $77 per tonne to more than $225. This coke shortage is a long-term challenge driving up the price of steel and is forcing steel makers to search for alternatives. Combustion Resources (CR) has developed a technology to produce metallurgical coke from alternative feedstocks in an environmentally clean manner. The purpose of the current project was to refine material and process requirements in order to achieve improved economic benefits and to expand upon prior work on the proposed technology through successful prototype testing of coke products. The ultimate objective of this project is commercialization of the proposed technology. During this project period, CR developed coke from over thirty different formulations that meet the strength and reactivity requirements for use as metallurgical coke. The technology has been termed CR Clean Coke because it utilizes waste materials as feedstocks and is produced in a continuous process where pollutant emissions can be significantly reduced compared to current practice. The proposed feed material and operating costs for a CR Clean Coke plant are significantly less than conventional coke plants. Even the capital costs for the proposed coke plant are about half that of current plants. The remaining barrier for CR Clean Coke to overcome prior to commercialization is full-scale testing in a blast furnace. These tests will require a significant quantity of product (tens of thousands of tons) necessitating the construction of a demonstration facility. Talks are currently underway with potential partners and investors to build a demonstration facility that will generate enough coke for meaningful blast furnace evaluation tests. If the testing is successful, CR Clean Coke could potentially eliminate the need for the United States to import any coke, effectively decreasing US Steel industry dependence on foreign nations and reducing the price of domestic steel.

  17. Particulate Matter Characteristics for Highly Dilute Stoichiometric GDI

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Engine Operations | Department of Energy Matter Characteristics for Highly Dilute Stoichiometric GDI Engine Operations Particulate Matter Characteristics for Highly Dilute Stoichiometric GDI Engine Operations The overall goal of this study is to help identify which conditions and potential mechanisms impede soot formation in GDI operations. PDF icon p-24_storey.pdf More Documents & Publications Ethanol Effects on Lean-Burn and Stoichiometric GDI Emissions Effects of Advanced Combustion

  18. Stabilization void-fill encapsulation high-efficiency particulate filters

    SciTech Connect (OSTI)

    Alexander, R.G.; Stewart, W.E.; Phillips, S.J.; Serkowski, M.M.; England, J.L.; Boynton, H.C.

    1994-05-01

    This report discusses high-efficiency particulate air (HEPA) filter systems that which are contaminated with radionuclides are part of the nuclear fuel processing systems conducted by the US Department of Energy (DOE) and require replacement and safe and efficient disposal for plant safety. Two K-3 HEPA filters were removed from service, placed burial boxes, buried, and safely and efficiently stabilized remotely which reduced radiation exposure to personnel and the environment.

  19. Advanced hybrid particulate collector and method of operation

    DOE Patents [OSTI]

    Miller, Stanley J. (Grand Forks, ND)

    2003-04-08

    A device and method for controlling particulate air pollutants of the present invention combines filtration and electrostatic collection devices. The invention includes a chamber housing a plurality of rows of filter elements. Between the rows of filter elements are rows of high voltage discharge electrodes. Between the rows of discharge electrodes and the rows of filter elements are grounded perforated plates for creating electrostatic precipitation zones.

  20. Microwave mode shifting antenna system for regenerating particulate filters

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Kirby, Kevin W [Calabasas Hills, CA; Phelps, Amanda [Malibu, CA; Gregoire, Daniel J [Thousand Oaks, CA

    2011-04-26

    A regeneration system comprises a particulate matter (PM) filter including a microwave energy absorbing surface, and an antenna system comprising N antennas and an antenna driver module that sequentially drives the antenna system in a plurality of transverse modes of the antenna system to heat selected portions of the microwave absorbing surface to regenerate the PM filter, where N is an integer greater than one. The transverse modes may include transverse electric (TE) and/or transverse magnetic (TM) modes.

  1. Diesel Particulate Oxidation Model: Combined Effects of Fixed & Volatile

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Carbon | Department of Energy Oxidation Model: Combined Effects of Fixed & Volatile Carbon Diesel Particulate Oxidation Model: Combined Effects of Fixed & Volatile Carbon Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. PDF icon p-14_strzelec.pdf More Documents & Publications Non-Petroleum-Based Fuels: Effects on Emissions Control Technologies Vehicle Technologies Office: 2010 Fuel

  2. AQUEOUS BIPHASE EXTRACTION FOR PROCESSING OF FINE COAL

    SciTech Connect (OSTI)

    K. Osseo-Asare; X. Zeng

    2002-01-01

    The objective of this research project is to develop an aqueous biphase extraction process for the treatment of fine coals. Aqueous biphase extraction is an advanced separation technology that relies on the ability of an aqueous system consisting of a water-soluble polymer and another component, e.g., another polymer, an inorganic salt, or a nonionic surfactant, to separate into two immiscible aqueous phases. The principle behind the partition of solid particles in aqueous biphase systems is the physicochemical interaction between the solid surface and the surrounding liquid solution. In order to remove sulfur and mineral matter from fine coal with aqueous biphasic extraction, it is necessary to know the partitioning behavior of coal, as well as the inorganic mineral components. Therefore, in this research emphasis was placed on the partitioning behavior of fine coal particles as well as model fine inorganic particles in aqueous biphase systems.

  3. Modified approaches for high pressure filtration of fine clean coal

    SciTech Connect (OSTI)

    Yang, J.; Groppo, J.G.; Parekh, B.K. [Center for Applied Energy Research, Lexington, KY (United States)

    1995-12-31

    Removal of moisture from fine (minus 28 mesh) clean coal to 20% or lower level is difficult using the conventional vacuum dewatering technique. High pressure filtration technique provides an avenue for obtaining low moisture in fine clean coal. This paper describes a couple of novel approaches for dewatering of fine clean coal using pressure filtration which provides much lower moisture in fine clean coal than that obtained using conventional pressure filter. The approaches involve (a) split stream dewatering and (b) addition of paper pulp to the coal slurry. For Pittsburgh No. 8 coal slurry, split stream dewatering at 400 mesh provided filter cake containing 12.9% moisture compared to 24.9% obtained on the feed material. The addition of paper pulp to the slurry provided filter cake containing about 17% moisture.

  4. Topological Quantization in Units of the Fine Structure Constant (Journal

    Office of Scientific and Technical Information (OSTI)

    Article) | SciTech Connect SciTech Connect Search Results Journal Article: Topological Quantization in Units of the Fine Structure Constant Citation Details In-Document Search Title: Topological Quantization in Units of the Fine Structure Constant Fundamental topological phenomena in condensed matter physics are associated with a quantized electromagnetic response in units of fundamental constants. Recently, it has been predicted theoretically that the time-reversal invariant topological

  5. Approved Program Proposals (AP)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Approved Program Proposals (AP) Print An Approved Program (AP) enables an investigator, or a group of investigators, to receive a set percentage of beam time to partner with ALS staff both to carry out an extended research program and to develop new tools and/or new research protocols that will be made available to the general user population. APs are arranged for a period of up to three years. AP Proposal Submission Deadlines January 15 July 15 AP Proposal Submission Guidelines Step 1: Contact

  6. Approved Program Proposals (AP)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Approved Program Proposals (AP) Print An Approved Program (AP) enables an investigator, or a group of investigators, to receive a set percentage of beam time to partner with ALS staff both to carry out an extended research program and to develop new tools and/or new research protocols that will be made available to the general user population. APs are arranged for a period of up to three years. AP Proposal Submission Deadlines January 15 July 15 AP Proposal Submission Guidelines Step 1: Contact

  7. Approved Program Proposals (AP)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Approved Program Proposals (AP) Print An Approved Program (AP) enables an investigator, or a group of investigators, to receive a set percentage of beam time to partner with ALS staff both to carry out an extended research program and to develop new tools and/or new research protocols that will be made available to the general user population. APs are arranged for a period of up to three years. AP Proposal Submission Deadlines January 15 July 15 AP Proposal Submission Guidelines Step 1: Contact

  8. Approved Program Proposals (AP)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Approved Program Proposals (AP) Print An Approved Program (AP) enables an investigator, or a group of investigators, to receive a set percentage of beam time to partner with ALS staff both to carry out an extended research program and to develop new tools and/or new research protocols that will be made available to the general user population. APs are arranged for a period of up to three years. AP Proposal Submission Deadlines January 15 July 15 AP Proposal Submission Guidelines Step 1: Contact

  9. Approved Program Proposals (AP)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    its recommendations to the ALS Division Director. A letter will be sent to the PIs of successful proposals specifying the percentage of beam time and the period of the AP. The...

  10. Proposed Rules IV. Conclusion

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Vol. 81, No. 44 Monday, March 7, 2016 Proposed Rules IV. Conclusion For the ... Dated at Rockville, Maryland, this 29th day of February, 2016. For the Nuclear Regulatory ...

  11. ARM - AAF Proposal Process

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    address aerosol-cloud interactions (i.e., studies of aerosol indirect effect, CCN, IN, etc.) or aerosol-radiation interactions. AAF is expecting to award five to six proposals with...

  12. Approved Program Proposals (AP)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    be sent out for external review and will also be evaluated by the Proposal Study Panels (PSP), which will provide its evaluation to the Scientific Advisory Committee (SAC). The SAC...

  13. Proposal Study Panels

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposal Study Panels Print Two Proposal Study Panels (PSPs) exist at the ALS: one for the general sciences and one for structural biology. The role of the PSPs is desribed in User Policy. Note: Users are urged NOT to contact any members of the panels directly. Current members of the general sciences PSP, as of February 2014, are Masa Fukuto, Brookhaven National Laboratory Carol Hirschmugl, University of Wisconsin, Milwaukee Peter Johnson (chair), Brookhaven National Laboratory Apurva Mehta,

  14. Proposal Study Panels

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposal Study Panels Print Two Proposal Study Panels (PSPs) exist at the ALS: one for the general sciences and one for structural biology. The role of the PSPs is desribed in User Policy. Note: Users are urged NOT to contact any members of the panels directly. Current members of the general sciences PSP, as of February 2014, are Masa Fukuto, Brookhaven National Laboratory Carol Hirschmugl, University of Wisconsin, Milwaukee Peter Johnson (chair), Brookhaven National Laboratory Apurva Mehta,

  15. Processing and Protection of Rare Earth Permanent Magnet Particulate for Bonded Magnet Applications

    SciTech Connect (OSTI)

    Peter Kelly Sokolowski

    2007-12-01

    Rapid solidification of novel mixed rare earth-iron-boron, MRE{sub 2}Fe{sub 14}B (MRE = Nd, Y, Dy; currently), magnet alloys via high pressure gas atomization (HPGA) have produced similar properties and structures as closely related alloys produced by melt spinning (MS) at low wheel speeds. Recent additions of titanium carbide and zirconium to the permanent magnet (PM) alloy design in HPGA powder (using He atomization gas) have made it possible to achieve highly refined microstructures with magnetic properties approaching melt spun particulate at cooling rates of 10{sup 5}-10{sup 6}K/s. By producing HPGA powders with the desirable qualities of melt spun ribbon, the need for crushing ribbon was eliminated in bonded magnet fabrication. The spherical geometry of HPGA powders is more ideal for processing of bonded permanent magnets since higher loading fractions can be obtained during compression and injection molding. This increased volume loading of spherical PM powder can be predicted to yield a higher maximum energy product (BH){sub max} for bonded magnets in high performance applications. Passivation of RE-containing powder is warranted for the large-scale manufacturing of bonded magnets in applications with increased temperature and exposure to humidity. Irreversible magnetic losses due to oxidation and corrosion of particulates is a known drawback of RE-Fe-B based alloys during further processing, e.g. injection molding, as well as during use as a bonded magnet. To counteract these effects, a modified gas atomization chamber allowed for a novel approach to in situ passivation of solidified particle surfaces through injection of a reactive gas, nitrogen trifluoride (NF{sub 3}). The ability to control surface chemistry during atomization processing of fine spherical RE-Fe-B powders produced advantages over current processing methodologies. In particular, the capability to coat particles while 'in flight' may eliminate the need for post atomization treatment, otherwise a necessary step for oxidation and corrosion resistance. Stability of these thin films was attributed to the reduction of each RE's respective oxide during processing; recognizing that fluoride compounds exhibit a slightly higher (negative) free energy driving force for formation. Formation of RE-type fluorides on the surface was evidenced through x-ray photoelectron spectroscopy (XPS). Concurrent research with auger electron spectroscopy has been attempted to accurately quantify the depth of fluoride formation in order to grasp the extent of fluorination reactions with spherical and flake particulate. Gas fusion analysis on coated powders (dia. <45 {micro}m) from an optimized experiment indicated an as-atomized oxygen concentration of 343ppm, where typical, nonpassivated RE atomized alloys exhibit an average of 1800ppm oxygen. Thermogravimetric analysis (TGA) on the same powder revealed a decreased rate of oxidation at elevated temperatures up to 300 C, compared to similar uncoated powder.

  16. The innate and adaptive immune response induced by alveolar macrophages exposed to ambient particulate matter

    SciTech Connect (OSTI)

    Miyata, Ryohei; Eeden, Stephan F. van

    2011-12-15

    Emerging epidemiological evidence suggests that exposure to particulate matter (PM) air pollution increases the risk of cardiovascular events but the exact mechanism by which PM has adverse effects is still unclear. Alveolar macrophages (AM) play a major role in clearing and processing inhaled PM. This comprehensive review of research findings on immunological interactions between AM and PM provides potential pathophysiological pathways that interconnect PM exposure with adverse cardiovascular effects. Coarse particles (10 {mu}m or less, PM{sub 10}) induce innate immune responses via endotoxin-toll-like receptor (TLR) 4 pathway while fine (2.5 {mu}m or less, PM{sub 2.5}) and ultrafine particles (0.1 {mu}m or less, UFP) induce via reactive oxygen species generation by transition metals and/or polyaromatic hydrocarbons. The innate immune responses are characterized by activation of transcription factors [nuclear factor (NF)-{kappa}B and activator protein-1] and the downstream proinflammatory cytokine [interleukin (IL)-1{beta}, IL-6, and tumor necrosis factor-{alpha}] production. In addition to the conventional opsonin-dependent phagocytosis by AM, PM can also be endocytosed by an opsonin-independent pathway via scavenger receptors. Activation of scavenger receptors negatively regulates the TLR4-NF-{kappa}B pathway. Internalized particles are subsequently subjected to adaptive immunity involving major histocompatibility complex class II (MHC II) expression, recruitment of costimulatory molecules, and the modulation of the T helper (Th) responses. AM show atypical antigen presenting cell maturation in which phagocytic activity decreases while both MHC II and costimulatory molecules remain unaltered. PM drives AM towards a Th1 profile but secondary responses in a Th1- or Th-2 up-regulated milieu drive the response in favor of a Th2 profile.

  17. DOE Withdraws Proposed Rulemaking (Test Procedure) and Proposed...

    Office of Environmental Management (EM)

    Withdraws Proposed Rulemaking (Test Procedure) and Proposed Coverage Determination (Energy Conservation Standard) for Set-Top Boxes DOE Withdraws Proposed Rulemaking (Test ...

  18. Photocatalytic hydrogen production using visible-light-responsive Ta{sub 3}N{sub 5} photocatalyst supported on monodisperse spherical SiO{sub 2} particulates

    SciTech Connect (OSTI)

    Liu, Xiaoming; Zhao, Lan; Domen, Kazunari; Takanabe, Kazuhiro

    2014-01-01

    Graphical abstract: A simple and effective solgel process followed by nitridation in an NH{sub 3} flow has been developed to deposit Ta{sub 3}N{sub 5} semiconductor photocatalyst layers onto monodisperse spherical SiO{sub 2} particles. The obtained Ta{sub 3}N{sub 5}/SiO{sub 2} particles maintain an original spherical morphology of SiO{sub 2} and a sub-micrometer size with a narrow size distribution and without aggregation. The presence of SiO{sub 2} support shows at least no detrimental effects on photocatalytic activity, but tunes the secondary particle size to control dispersibility of the photocatalyst in the solution. - Highlights: Fine nanoparticles of Ta{sub 3}N{sub 5} were immobilized on the surfaces of SiO{sub 2} giving SiO{sub 2}@Ta{sub 3}N{sub 5} coreshell spheres successfully produced H{sub 2} from methanol solution under visible light. The presence of support (SiO{sub 2}) ensures the dispersion of the particulate in solution maintaining high photocatalytic activity of Ta{sub 3}N{sub 5}. The obtained supported photocatalyst gives uniform size distribution and control the degree of dispersibility in the solution, which may control nature of light absorption and reflection of the photoreactor. - Abstract: Fine nanoparticles of Ta{sub 3}N{sub 5} (1020 nm) were synthesized on the surfaces of SiO{sub 2} spheres with a diameter of ?550 nm. A solgel method was used to modify the surface of SiO{sub 2} with Ta{sub 2}O{sub 5} from TaCl{sub 5} dissolved in ethanol in the presence of citric acid and polyethylene glycol. The resulting oxide composites were treated in an NH{sub 3} flow at 1123 K to form coreshell structured Ta{sub 3}N{sub 5}/SiO{sub 2} sub-microspheres. The obtained samples were characterized using powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectra (EDX), transmission electron microscopy (TEM), and photocatalytic activity measurements for H{sub 2} evolution from an aqueous methanol solution. The XRD results demonstrate the expected sequential formation of Ta{sub 2}O{sub 5} layers, followed by Ta{sub 3}N{sub 5} after nitridation on the Ta{sub 2}O{sub 5}/SiO{sub 2} composite. SEM and TEM observations indicate that the obtained Ta{sub 3}N{sub 5}/SiO{sub 2} sub-microspheres have a uniform size distribution with high crystallinity and an obvious coreshell structure. The presence of support maintained the intrinsic photocatalytic activity of Ta{sub 3}N{sub 5} nanoparticles, but it did drastically improve the dispersion of the photocatalysts in the solution. This study proposes the use of an inert support in photocatalytic reactors to improve ease of handling the powder photocatalyst for gas-phase photocatalysis and the suspension of the solution, controlling nature of light harvesting and degree of scattering of the photoreactor.

  19. Fine coal cleaning via the micro-mag process

    DOE Patents [OSTI]

    Klima, Mark S.; Maronde, Carl P.; Killmeyer, Richard P.

    1991-01-01

    A method of cleaning particulate coal which is fed with a dense medium slurry as an inlet feed to a cyclone separator. The coal particle size distribution is in the range of from about 37 microns to about 600 microns. The dense medium comprises water and ferromagnetic particles that have a relative density in the range of from about 4.0 to about 7.0. The ferromagnetic particles of the dense medium have particle sizes of less than about 15 microns and at least a majority of the particle sizes are less than about 5 microns. In the cyclone, the particulate coal and dense-medium slurry is separated into a low gravity product stream and a high gravity produce stream wherein the differential in relative density between the two streams is not greater than about 0.2. The low gravity and high gravity streams are treated to recover the ferromagnetic particles therefrom.

  20. 2013 Electricity Form Proposals

    Gasoline and Diesel Fuel Update (EIA)

    Electricity Survey Form Changes in 2013 The U.S. Energy Information Administration (EIA) proposed changes to its electricity data collection in 2013. These changes involve three forms: Form EIA-861, "Annual Electric Power Industry Report" The addition of a new form, the Form EIA-861S, "Annual Electric Power Industry Report (Short Form)" Form EIA-923, "Power Plant Operations Report." The proposals were initially announced to the public via a Federal Register Notice

  1. On-Board Engine Exhaust Particulate Matter Sensor for HCCI and Conventional

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Diesel Engines | Department of Energy Engine Exhaust Particulate Matter Sensor for HCCI and Conventional Diesel Engines On-Board Engine Exhaust Particulate Matter Sensor for HCCI and Conventional Diesel Engines 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon ace_44_hall.pdf More Documents & Publications Development and Demonstration of an Electronic Particulate Matter Sensor for Both

  2. Partial-Flow Diesel Particulate Filter of Sintered Metal Fiber Fleece |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Partial-Flow Diesel Particulate Filter of Sintered Metal Fiber Fleece Partial-Flow Diesel Particulate Filter of Sintered Metal Fiber Fleece Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. PDF icon p-05_lu.pdf More Documents & Publications Advanced Metal Fiber Wall-Flow DPF For Diesel Emission Control Requirements from Particulate Filter Technology for Commercial Vehicles:

  3. Performance of the Low-Efficiency Diesel Particulate Filter for Diesel PM

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Reduction | Department of Energy the Low-Efficiency Diesel Particulate Filter for Diesel PM Reduction Performance of the Low-Efficiency Diesel Particulate Filter for Diesel PM Reduction Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. PDF icon p-15_wei.pdf More Documents & Publications On-Road PM Mass Emission Measured with OBS-TRPM Investigation of Direct Injection Vehicle Particulate Matter

  4. New Cordierite Diesel Particulate Filters for Catalyzed and Non-Catalyzed

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Applications | Department of Energy Cordierite Diesel Particulate Filters for Catalyzed and Non-Catalyzed Applications New Cordierite Diesel Particulate Filters for Catalyzed and Non-Catalyzed Applications 2003 DEER Conference Presentation: Corning Incorporated PDF icon 2003_deer_merkel.pdf More Documents & Publications 12TH DIESEL ENGINE-EFFICIENCY AND EMISSIONS RESEARCH CONFERENCE (DEER 2006) PRESENTATIONS Vehicle Technologies Office Merit Review 2015: Particulate Emissions Control by

  5. Development of a Sub-Grid Model of a Diesel Particulate Filter: application

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of the lattice-Boltzmann technique | Department of Energy a Sub-Grid Model of a Diesel Particulate Filter: application of the lattice-Boltzmann technique Development of a Sub-Grid Model of a Diesel Particulate Filter: application of the lattice-Boltzmann technique 2002 DEER Conference Presentation: Pacific Northwest National Laboratory PDF icon 2002_deer_muntean.pdf More Documents & Publications The State of the Science in Diesel Particulate Control fundamental Modeling and Experimental

  6. Vehicle Technologies Office Merit Review 2015: Particulate Emissions Control by Advanced Filtration Systems for GDI Engines

    Broader source: Energy.gov [DOE]

    Presentation given by Argonne National Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about particulate...

  7. Development of a Sub-Grid Model of a Diesel Particulate Filter...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of the lattice-Boltzmann technique Development of a Sub-Grid Model of a Diesel Particulate Filter: application of the lattice-Boltzmann technique 2002 DEER Conference ...

  8. Vehicle Technologies Office Merit Review 2014: Particulate Emissions Control by Advanced Filtration Systems for GDI Engines

    Broader source: Energy.gov [DOE]

    Presentation given by Argonne National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about particulate...

  9. Active DPF for Off-Road Particulate Matter (PM) Control | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy DPF for Off-Road Particulate Matter (PM) Control Active DPF for Off-Road Particulate Matter (PM) Control This presentation details how a possibly catalyzed active diesel particulate filter can be used to control off-road particulate matter. PDF icon deer08_servati.pdf More Documents & Publications DPF for a Tractor Auxiliary Power Unit A Low-Cost Continuous Emissions Monitoring System for Mobile and Stationary Engine SCR/DPF Applications/Data-Logger for Vehicle Data Acquisition

  10. Measuring PM Distribution in a Catalyzed Particulate Filter using a Terahertz Wave Scanner

    Broader source: Energy.gov [DOE]

    Terahertz scanning system produced 3-dimensional image of local PM density in catatalyzed particulate filters tested under loading and oxidizing conditions

  11. Apparatus for removal of particulate matter from gas streams

    DOE Patents [OSTI]

    Smith, Peyton L. (Baton Rouge, LA); Morse, John C. (Baton Rouge, LA)

    2000-01-01

    An apparatus for the removal of particulate matter from the gaseous product stream of an entrained flow coal gasifier which apparatus includes an initial screen, an intermediate screen which is aligned with the direction of flow of the gaseous product stream and a final screen transversely disposed to the flow of gaseous product and which apparatus is capable of withstanding at least a pressure differential of about 10 psi (68.95 kPa) or greater at the temperatures of the gaseous product stream.

  12. Ash reduction system using electrically heated particulate matter filter

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Paratore, Jr., Michael J; He, Yongsheng [Sterling Heights, MI

    2011-08-16

    A control system for reducing ash comprises a temperature estimator module that estimates a temperature of an electrically heated particulate matter (PM) filter. A temperature and position estimator module estimates a position and temperature of an oxidation wave within the electrically heated PM filter. An ash reduction control module adjusts at least one of exhaust flow, fuel and oxygen levels in the electrically heated PM filter to adjust a position of the oxidation wave within the electrically heated PM filter based on the oxidation wave temperature and position.

  13. Low exhaust temperature electrically heated particulate matter filter system

    DOE Patents [OSTI]

    Gonze, Eugene V. (Pinckney, MI); Paratore, Jr., Michael J. (Howell, MI); Bhatia, Garima (Bangalore, IN)

    2012-02-14

    A system includes a particulate matter (PM) filter, a sensor, a heating element, and a control module. The PM filter includes with an upstream end that receives exhaust gas, a downstream end and multiple zones. The sensor detects a temperature of the exhaust gas. The control module controls current to the heating element to convection heat one of the zones and initiate a regeneration process. The control module selectively increases current to the heating element relative to a reference regeneration current level when the temperature is less than a predetermined temperature.

  14. Advanced hybrid particulate collector and method of operation

    DOE Patents [OSTI]

    Miller, S.J.

    1999-08-17

    A device and method for controlling particulate air pollutants of the present invention combines filtration and electrostatic collection devices. The invention includes a chamber housing a plurality of rows of filter elements. Between each row of filter elements is a grounded plate. Between the grounded plates and the filter elements are electrode grids for creating electrostatic precipitation zones between each row of filter elements. In this way, when the filter elements are cleaned by pulsing air in a reverse direction, the dust removed from the bags will collect in the electrostatic precipitation zones rather than on adjacent filter elements. 12 figs.

  15. Controlled laser production of elongated articles from particulates

    DOE Patents [OSTI]

    Dixon, Raymond D. (Los Alamos, NM); Lewis, Gary K. (Los Alamos, NM); Milewski, John O. (Santa Fe, NM)

    2002-01-01

    It has been discovered that wires and small diameter rods can be produced using laser deposition technology in a novel way. An elongated article such as a wire or rod is constructed by melting and depositing particulate material into a deposition zone which has been designed to yield the desired article shape and dimensions. The article is withdrawn from the deposition zone as it is formed, thus enabling formation of the article in a continuous process. Alternatively, the deposition zone is moved along any of numerous deposition paths away from the article being formed.

  16. Electrically heated particulate filter with zoned exhaust flow control

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2012-06-26

    A system includes a particulate matter (PM) filter that includes X zones. An electrical heater includes Y heater segments that are associated with respective ones of the X zones. The electrical heater is arranged upstream from and proximate with the PM filter. A valve assembly includes Z sections that are associated with respective ones of the X zones. A control module adjusts flow through each of the Z sections during regeneration of the PM filter via control of the valve assembly. X, Y and Z are integers.

  17. Elevated exhaust temperature, zoned, electrically-heated particulate matter filter

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Bhatia, Garima [Bangalore, IN

    2012-04-17

    A system includes an electrical heater and a particulate matter (PM) filter that is arranged one of adjacent to and in contact with the electrical heater. A control module selectively increases an exhaust gas temperature of an engine to a first temperature and that initiates regeneration of the PM filter using the electrical heater while the exhaust gas temperature is above the first temperature. The first temperature is greater than a maximum exhaust gas temperature at the PM filter during non-regeneration operation and is less than an oxidation temperature of the PM.

  18. Advanced hybrid particulate collector and method of operation

    DOE Patents [OSTI]

    Miller, Stanley J. (Grand Forks, ND)

    1999-01-01

    A device and method for controlling particulate air pollutants of the present invention combines filtration and electrostatic collection devices. The invention includes a chamber housing a plurality of rows of filter elements. Between each row of filter elements is a grounded plate. Between the grounded plates and the filter elements are electrode grids for creating electrostatic precipitation zones between each row of filter elements. In this way, when the filter elements are cleaned by pulsing air in a reverse direction, the dust removed from the bags will collect in the electrostatic precipitation zones rather than on adjacent filter elements.

  19. Wireless zoned particulate matter filter regeneration control system

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Kirby, Kevin W [Calabasas Hills, CA; Phelps, Amanda [Malibu, CA

    2011-10-04

    An assembly includes a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas, a downstream end and multiple zones. An absorbing layer absorbs microwave energy in one of N frequency ranges and is arranged with the upstream end. N is an integer. A frequency selective filter has M frequency selective segments and receives microwave energy in the N frequency ranges. M is an integer. One of the M frequency selective segments permits passage of the microwave energy in one of the N frequency ranges and does not permit passage of microwave energy in the other of the N frequency ranges.

  20. Prospecting by sampling and analysis of airborne particulates and gases

    DOE Patents [OSTI]

    Sehmel, G.A.

    1984-05-01

    A method is claimed for prospecting by sampling airborne particulates or gases at a ground position and recording wind direction values at the time of sampling. The samples are subsequently analyzed to determine the concentrations of a desired material or the ratios of the desired material to other identifiable materials in the collected samples. By comparing the measured concentrations or ratios to expected background data in the vicinity sampled, one can select recorded wind directions indicative of the upwind position of the land-based source of the desired material.

  1. Zoned electrical heater arranged in spaced relationship from particulate filter

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI

    2011-11-15

    A system comprises a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas and a downstream end. A zoned heater is arranged spaced from the upstream end and comprises N zones, where N is an integer greater than one, wherein each of the N zones comprises M sub-zones, where M is an integer greater than one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates non-selected ones of the N zones.

  2. Proposed Drill Sites

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Lane, Michael

    Proposed drill sites for intermediate depth temperature gradient holes and/or deep resource confirmation wells. Temperature gradient contours based on shallow TG program and faults interpreted from seismic reflection survey are shown, as are two faults interpreted by seismic contractor Optim but not by Oski Energy, LLC.

  3. Proposed Drill Sites

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Lane, Michael

    2013-06-28

    Proposed drill sites for intermediate depth temperature gradient holes and/or deep resource confirmation wells. Temperature gradient contours based on shallow TG program and faults interpreted from seismic reflection survey are shown, as are two faults interpreted by seismic contractor Optim but not by Oski Energy, LLC.

  4. Fossil and Contemporary Fine Carbon Fractions at 12 Rural and Urban Sites in the United States

    SciTech Connect (OSTI)

    Schichtel, B; Malm, W; Bench, G; Fallon, S; McDade, C; Chow, J

    2007-03-01

    Fine particulate matter collected at two urban, four near-urban, and six remote sites throughout the United States were analyzed for total carbon (TC) and radiocarbon ({sup 14}C). Samples were collected at most sites for both a summer and winter season. The radiocarbon was used to partition the TC into fossil and contemporary fractions. On average, contemporary carbon composed about half of the carbon at the urban, {approx}70-97% at near-urban, and 82-100% at remote sites. At Phoenix, Arizona, and Seattle, Washington, one monitor was located within the urban center and one outside to assess the urban excess over background concentrations. During the summer the urban and rural sites had similar contemporary carbon concentrations. However, during the winter the urban sites had more than twice the contemporary carbon measured at the neighboring sites, indicating anthropogenic contributions to the contemporary carbon. The urban fossil carbon was 4-20 times larger than the neighboring rural sites for both seasons. Organic (OC) and elemental carbon (EC) from TOR analysis were available. These and the radiocarbon data were used to estimate characteristic fossil and contemporary EC/TC ratios for the winter and summer seasons. These ratios were applied to carbon data from the Interagency Monitoring of Protected Visual Environments network to estimate the fraction of contemporary carbon at mostly rural sites throughout the United States. In addition, the ratios were used to develop a semiquantitative, lower bound estimate of secondary organic carbon (SOC) contribution to fossil and contemporary carbon. SOC accounted for more than one-third of the fossil and contemporary carbon.

  5. Use of micro-XANES to speciate chromium in airborne fine particles in the Sacramento Valley

    SciTech Connect (OSTI)

    Michelle L. Werner; Peter S. Nico; Matthew A. Marcus; Cort Anastasio

    2007-07-15

    While particulate matter (PM) in the atmosphere can lead to a wide array of negative health effects, the cause of toxicity is largely unknown. One aspect of PM that likely affects health is the chemical composition, in particular the transition metals within the particles. Chromium is one transition metal of interest due to its two major oxidation states, with Cr(III) being much less toxic compared to Cr(VI). Using microfocused X-ray absorption near edge structure (micro-XANES), we analyzed the Cr speciation in fine particles (diameters {le} 2.5 {mu}m) collected at three sites in the Sacramento Valley of northern California: Sacramento, a large urban area, Davis, a small city, and Placerville, a rural area. These are several major stationary sources of Cr within 24 km of the site including chrome-plating plants, power plants and incinerators. The microfocused X-ray beam enables us to look at very small areas on the filter with a resolution of typically 5-7 micrometers. With XANES we are able to not only distinguish between Cr(VI) and Cr(III), but also to identify different types of Cr(III) and more reduced Cr species. At all of our sampling sites the main Cr species were Cr(III), with Cr(OH){sub 3} or a Cr-Fe, chromite-like, phase being the dominant species. Cr(VI)-containing particles were found only in the most urban site. All three sites contained some reduced Cr species, either Cr(0) or Cr{sub 3}C{sub 2}, although these were minor components. This work demonstrates that micro-XANES can be used as a minimally invasive analytical tool to investigate the composition of ambient PM. 32 refs., 6 figs.

  6. Cooler and particulate separator for an off-gas stack

    DOE Patents [OSTI]

    Wright, George T. (15 Cherry Hills Dr., Aiken, SC 29803)

    1992-01-01

    An off-gas stack for a melter comprising an air conduit leading to two sets of holes, one set injecting air into the off-gas stack near the melter plenum and the second set injecting air downstream of the first set. The first set injects air at a compound angle, having both downward and tangential components, to create a reverse vortex flow, counter to the direction of flow of gas through the stack and also along the periphery of the stack interior surface. Air from the first set of holes pervents recirculation zones from forming and the attendant accumulation of particulate deposits on the wall of the stack and will also return to the plenum any particulate swept up in the gas entering the stack. The second set of holes injects air in the same direction as the gas in the stack to compensate for the pressure drop and to prevent the concentration of condensate in the stack. A set of sprayers, receiving water from a second conduit, is located downstream of the second set of holes and sprays water into the gas to further cool it.

  7. Cooler and particulate separator for an off-gas stack

    DOE Patents [OSTI]

    Wright, G.T.

    1991-04-08

    This report describes an off-gas stack for a melter, furnace or reaction vessel comprising an air conduit leading to two sets of holes, one set injecting air into the off-gas stack near the melter plenum and the second set injecting air downstream of the first set. The first set injects air at a compound angle, having both downward and tangential components, to create a reverse vortex flow, counter to the direction of flow of gas through the stack and also along the periphery of the stack interior surface. Air from the first set of holes prevents recirculation zones from forming and the attendant accumulation of particulate deposits on the wall of the stack and will also return to the plenum any particulate swept up in the gas entering the stack. The second set of holes injects air in the same direction as the gas in the stack to compensate for the pressure drop and to prevent the concentration of condensate in the stack. A set of sprayers, receiving water from a second conduit, is located downstream of the second set of holes and sprays water into the gas to further cool it.

  8. Description of Proposed Action

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    RECORD OF CATEGORICAL EXCLUSION DETERMINATION 1 Description of Proposed Action Performance of a three-dimensional seismic survey line on approximately 2,409 acres contained within the WIPP Land Withdrawal Area as part of a larger survey to determine whether hydrocarbons are present in the region in quantities that warrant extraction and development. Number and Title of Applicable Categorical Exclusion B3.1 Site Characterization/Environmental Monitoring Activities covered by this Categorical

  9. Environmental Assessment - Proposed Actions

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    availability of Waste Isolation Pilot Plant (WIPP) facilities and infrastructure to scientists who wish to conduct experiments there. DOE would allow these experiments if they can be conducted without interfering with the WIPP's primary transuranic waste disposal mission and if they reflect contemporary budget priorities. This fact sheet presents questions and answers about the proposed action and its alternative. The deep geologic repository at the WIPP could provide a favorable environment for

  10. Proposed Rules IV. Conclusion

    Energy Savers [EERE]

    686 Federal Register / Vol. 81, No. 44 / Monday, March 7, 2016 / Proposed Rules IV. Conclusion For the reasons cited in this document, the NRC is denying PRM- 50-106. The NRC is denying this petition because the current regulations already address environmental qualification in both mild and design basis event conditions of electrical equipment located both inside and outside of the containment building that is important to safety, and the petitioners did not provide significant new or

  11. DATABASE AND ANALYTICAL TOOL DEVELOPMENT FOR THE MANAGEMENT OF DATA DERIVED FROM US DOE (NETL) FUNDED FINE PARTICULATE (PM2.5) RESEARCH

    SciTech Connect (OSTI)

    Robinson P. Khosah; Charles G. Crawford

    2003-03-13

    Advanced Technology Systems, Inc. (ATS) was contracted by the U. S. Department of Energy's National Energy Technology Laboratory (DOE-NETL) to develop a state-of-the-art, scalable and robust web-accessible database application to manage the extensive data sets resulting from the DOE-NETL-sponsored ambient air monitoring programs in the upper Ohio River valley region. The data management system was designed to include a web-based user interface that will allow easy access to the data by the scientific community, policy- and decision-makers, and other interested stakeholders, while providing detailed information on sampling, analytical and quality control parameters. In addition, the system will provide graphical analytical tools for displaying, analyzing and interpreting the air quality data. The system will also provide multiple report generation capabilities and easy-to-understand visualization formats that can be utilized by the media and public outreach/educational institutions. The project is being conducted in two phases. Phase 1, which is currently in progress and will take twelve months to complete, will include the following tasks: (1) data inventory/benchmarking, including the establishment of an external stakeholder group; (2) development of a data management system; (3) population of the database; (4) development of a web-based data retrieval system, and (5) establishment of an internal quality assurance/quality control system on data management. In Phase 2, which will be completed in the second year of the project, a platform for on-line data analysis will be developed. Phase 2 will include the following tasks: (1) development of a sponsor and stakeholder/user website with extensive online analytical tools; (2) development of a public website; (3) incorporation of an extensive online help system into each website; and (4) incorporation of a graphical representation (mapping) system into each website. The project is now into its sixth month of Phase 1 development activities.

  12. Database and Analytical Tool Development for the Management of Data Derived from US DOE (NETL) Funded Fine Particulate (PM2.5) Research

    SciTech Connect (OSTI)

    Robinson Khosah

    2007-07-31

    Advanced Technology Systems, Inc. (ATS) was contracted by the U. S. Department of Energy's National Energy Technology Laboratory (DOE-NETL) to develop a state-of-the-art, scalable and robust web-accessible database application to manage the extensive data sets resulting from the DOE-NETL-sponsored ambient air monitoring programs in the upper Ohio River valley region. The data management system was designed to include a web-based user interface that will allow easy access to the data by the scientific community, policy- and decision-makers, and other interested stakeholders, while providing detailed information on sampling, analytical and quality control parameters. In addition, the system will provide graphical analytical tools for displaying, analyzing and interpreting the air quality data. The system will also provide multiple report generation capabilities and easy-to-understand visualization formats that can be utilized by the media and public outreach/educational institutions. The project was conducted in two phases. Phase One included the following tasks: (1) data inventory/benchmarking, including the establishment of an external stakeholder group; (2) development of a data management system; (3) population of the database; (4) development of a web-based data retrieval system, and (5) establishment of an internal quality assurance/quality control system on data management. Phase Two involved the development of a platform for on-line data analysis. Phase Two included the following tasks: (1) development of a sponsor and stakeholder/user website with extensive online analytical tools; (2) development of a public website; (3) incorporation of an extensive online help system into each website; and (4) incorporation of a graphical representation (mapping) system into each website. The project is now technically completed.

  13. Database and Analytical Tool Development for the Management of Data Derived from US DOE (NETL) Funded Fine Particulate (PM2.5) Research

    SciTech Connect (OSTI)

    Robinson P. Khosah; Frank T. Alex

    2007-02-11

    Advanced Technology Systems, Inc. (ATS) was contracted by the U. S. Department of Energy's National Energy Technology Laboratory (DOE-NETL) to develop a state-of-the-art, scalable and robust web-accessible database application to manage the extensive data sets resulting from the DOE-NETL-sponsored ambient air monitoring programs in the upper Ohio River valley region. The data management system was designed to include a web-based user interface that will allow easy access to the data by the scientific community, policy- and decision-makers, and other interested stakeholders, while providing detailed information on sampling, analytical and quality control parameters. In addition, the system will provide graphical analytical tools for displaying, analyzing and interpreting the air quality data. The system will also provide multiple report generation capabilities and easy-to-understand visualization formats that can be utilized by the media and public outreach/educational institutions. The project is being conducted in two phases. Phase One includes the following tasks: (1) data inventory/benchmarking, including the establishment of an external stakeholder group; (2) development of a data management system; (3) population of the database; (4) development of a web-based data retrieval system, and (5) establishment of an internal quality assurance/quality control system on data management. Phase Two, which is currently underway, involves the development of a platform for on-line data analysis. Phase Two includes the following tasks: (1) development of a sponsor and stakeholder/user website with extensive online analytical tools; (2) development of a public website; (3) incorporation of an extensive online help system into each website; and (4) incorporation of a graphical representation (mapping) system into each website. The project is now into its forty-eighth month of development activities.

  14. ROTARY FILTER FINES TESTING FOR SMALL COLUMN ION EXCHANGE

    SciTech Connect (OSTI)

    Herman, D.

    2011-08-03

    SRNL was requested to quantify the amount of 'fines passage' through the 0.5 micron membranes currently used for the rotary microfilter (RMF). Testing was also completed to determine if there is any additional benefit to utilizing a 0.1 micron filter to reduce the amount of fines that could pass through the filter. Quantifying of the amount of fines that passed through the two sets of membranes that were tested was accomplished by analyzing the filtrate by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) for titanium. Even with preparations to isolate the titanium, all samples returned results of less than the instrument's detection limit of 0.184 mg/L. Test results show that the 0.5 micron filters produced a significantly higher flux while showing a negligible difference in filtrate clarity measured by turbidity. The first targeted deployment of the RMF is with the Small Column Ion Exchange (SCIX) at the Savannah River Site (SRS). SCIX uses crystalline silicotitanate (CST) to sorb cesium to decontaminate a clarified salt solution. The passage of fine particles through the filter membranes in sufficient quantities has the potential to impact the downstream facilities. To determine the amount of fines passage, a contract was established with SpinTek Filtration to operate a 3-disk pilot scale unit with prototypic filter disk and various feeds and two different filter disk membranes. SpinTek evaluated a set of the baseline 0.5 micron filter disks as well as a set of 0.1 micron filter disks to determine the amount of fine particles that would pass the membrane and to determine the flux each set produced. The membrane on both disk sets is manufactured by the Pall Corporation (PMM 050). Each set of disks was run with three feed combinations: prototypically ground CST, CST plus monosodium titanate (MST), and CST, MST, plus Sludge Batch 6 (SB6) simulant. Throughout the testing, samples of the filtrate were collected, measured for turbidity, and sent back to SRNL for analysis to quantify the amount of fines that passed through the membrane. It should be noted that even though ground CST was tested, it will be transferred to the Defense Waste Processing Facility (DWPF) feed tank and is not expected to require filtration.

  15. Resistive heater geometry and regeneration method for a diesel particulate filter

    DOE Patents [OSTI]

    Phelps, Amanda; Kirby, Kevin W.; Gregoir, Daniel J.

    2011-10-25

    One embodiment of the invention includes a diesel particulate filter comprising a first face and a second face; a bottom electrode layer formed over the first face of the diesel particulate filter; a middle resistive layer formed over a portion of the bottom electrode layer; and a top electrode layer formed over a portion of the middle resistive layer.

  16. Friction stir weld tools having fine grain structure

    DOE Patents [OSTI]

    Grant, Glenn J.; Frye, John G.; Kim, Jin Yong; Lavender, Curt A.; Weil, Kenneth Scott

    2016-03-15

    Tools for friction stir welding can be made with fewer process steps, lower cost techniques, and/or lower cost ingredients than other state-of-the-art processes by utilizing improved compositions and processes of fabrication. Furthermore, the tools resulting from the improved compositions and processes of fabrication can exhibit better distribution and homogeneity of chemical constituents, greater strength, and/or increased durability. In one example, a friction stir weld tool includes tungsten and rhenium and is characterized by carbide and oxide dispersoids, by carbide particulates, and by grains that comprise a solid solution of the tungsten and rhenium. The grains do not exceed 10 micrometers in diameter.

  17. High exhaust temperature, zoned, electrically-heated particulate matter filter

    DOE Patents [OSTI]

    Gonze, Eugene V.; Paratore, Jr., Michael J.; Bhatia, Garima

    2015-09-22

    A system includes a particulate matter (PM) filter, an electric heater, and a control circuit. The electric heater includes multiple zones, which each correspond to longitudinal zones along a length of the PM filter. A first zone includes multiple discontinuous sub-zones. The control circuit determines whether regeneration is needed based on an estimated level of loading of the PM filter and an exhaust flow rate. In response to a determination that regeneration is needed, the control circuit: controls an operating parameter of an engine to increase an exhaust temperature to a first temperature during a first period; after the first period, activates the first zone; deactivates the first zone in response to a minimum filter face temperature being reached; subsequent to deactivating the first zone, activates a second zone; and deactivates the second zone in response to the minimum filter face temperature being reached.

  18. Integrated exhaust and electrically heated particulate filter regeneration systems

    DOE Patents [OSTI]

    Gonze, Eugene V.; Paratore, Jr., Michael J.

    2013-01-08

    A system includes a particulate matter (PM) filter that includes multiple zones. An electrical heater includes heater segments that are associated with respective ones of the zones. The electrical heater is arranged upstream from and proximate with the PM filter. A post-fuel injection system injects fuel into at least one of a cylinder of an engine and an exhaust system. A control module is configured to operate in a first mode that includes activating the electrical heater to heat exhaust of the engine. The control module is also configured to operate in a second mode that includes activating the post-injection system to heat the exhaust. The control module selectively operates in at least one of the first mode and the second mode.

  19. Dry scrubbing oxides and particulate contaminants from hot gases

    SciTech Connect (OSTI)

    Quee, J. A.; Haak, M. P.

    1985-03-12

    Sulfur dioxides are dry scrubbed from a flue gas by introducing minute droplets containing a liquid, such as water, and an alkali or alkaline reactant, such as lime, into the spray zone in the primary spray drying chamber of a spray dryer and concurrently contacting these droplets with the hot flue gas. The droplets are partially dried to a tacky condition before reaching a foraminous collecting member extending through the primary spray drying chamber and collect on the collecting member as a moist, porous mat. As the flue gas continues to flow through the mat, the mat serves as a filter for removing fly ash and other particulate matter and remaining sulfur oxides react with unreacted particles of the reactant and reactive ingredients of the fly ash particles in the mat.

  20. Cashew nut roasting: Chemical characterization of particulate matter and genotocixity analysis

    SciTech Connect (OSTI)

    Oliveira Galvo, Marcos Felipe de; Melo Cabral, Thiago de; Andr, Paulo Afonso de; Ftima Andrade, Maria de; Miranda, Regina Maura de; Saldiva, Paulo Hilrio Nascimento; Castro Vasconcellos, Prola de; Batistuzzo de Medeiros, Silvia Regina

    2014-05-01

    Background: Particulate matter (PM) is potentially harmful to health and related to genotoxic events, an increase in the number of hospitalizations and mortality from respiratory and cardiovascular diseases. The present study conducted the first characterization of elemental composition and polycyclic aromatic hydrocarbon (PAH) analysis of PM, as well as the biomonitoring of genotoxic activity associated to artisanal cashew nut roasting, an important economic and social activity worldwide. Methods: The levels of PM{sub 2.5} and black carbon were also measured by gravimetric analysis and light reflectance. The elemental composition was determined using X-ray fluorescence spectrometry and PAH analysis was carried out by gas chromatographymass spectrometry. Genotoxic activity was measured by the Tradescantia pallida micronucleus bioassay (Trad-MCN). Other biomarkers of DNA damage, such as nucleoplasmic bridges and nuclear fragments, were also quantified. Results: The mean amount of PM{sub 2.5} accumulated in the filters (January 2124.2 g/m{sup 3}; May 1022.2 g/m{sup 3}; September 1291.9 g/m{sup 3}), black carbon (January 363.6 g/m{sup 3}; May 70 g/m{sup 3}; September 69.4 g/m{sup 3}) and concentrations of Al, Si, P, S, Cl, K, Ca, Ti, Cr, Mn, Fe, Ni, Cu, Zn, Se, Br and Pb were significantly higher than the non-exposed area. Biomass burning tracers K, Cl, and S were the major inorganic compounds found. Benzo[k]fluoranthene, indene[1,2,3-c,d]pyrene, benzo[ghi]perylene, phenanthrene and benzo[b]fluoranthene were the most abundant PAHs. Mean benzo[a]pyrene-equivalent carcinogenic power values showed a significant cancer risk. The Trad-MCN bioassay revealed an increase in micronucleus frequency, 27 times higher than the negative control and significantly higher in all the months analyzed, possibly related to the mutagenic PAHs found. Conclusions: This study demonstrated that artisanal cashew nut roasting is a serious occupational problem, with harmful effects on workers' health. Those involved in this activity are exposed to higher PM{sub 2.5} concentrations and to 12 PAHs considered potentially mutagenic and/or carcinogenic. The Trad-MCN with T. pallida was sensitive and efficient in evaluating the genotoxicity of the components and other nuclear alterations may be used as effective biomarkers of DNA damage. - Highlights: The cashew nut roasting generated high concentrations of particulate matter fine. The biomass burning tracers K, Cl, S were the major inorganic compounds found. It was identified 12 PAHs considered to be potentially mutagenic and/or carcinogenic. The genotoxic potential of this activity was confirmed by the Trad MCN assay. This activity is a serious occupational problem with harmful effects to health workers.

  1. Proposal Types | Advanced Photon Source

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    from anywhere in the world to use the APS through a competitive access process. CAT Member and Staff Proposals Proposals from members and staff of Collaborative Access...

  2. CRADA opportunities in removal of particulates from hot-gas streams by filtration

    SciTech Connect (OSTI)

    Smith, D.H.

    1995-06-01

    Our analyses of samples and operating data from the Pressurized Fluidized Bed Combustion (PFBC), cyclone, and filtration units of the Tidd Clean Coal demonstration facility show that calcined dolomitic sorbent reacted with SO{sub 2} (and O{sub 2}) to form Sulfates (CaSO{sub 4} and CaMgn [SO{sub 4}]n+1) not only in the PFBC bed, but also in the filtration vessel. Analyses of limited data from the journal literature suggest that the filter-vessel reactions may have produced sulfate {open_quotes}necks,{close_quotes} which bonded the particles together, thus substantially increasing the critical angle of repose and shear tensile strengths of the filtered powders. This proposed mechanism rationalizes the {open_quotes}bridging{close_quotes} and other particle-accumulation problems that caused filter breakage. Engineering services potentially available to resolve these problems include elucidation and modeling of ex-situ and in-situ filter-vessel chemistry, measurement and modeling of particulate materials properties, and measurement and modeling of cleaning back-pulse aerodynamics and cleaning efficiencies.

  3. Maintenance is the cheapest way to improve fine coal dewatering

    SciTech Connect (OSTI)

    Burger, J.

    1986-01-01

    There are a great many things that a preparation plant operator can do right now to increase fine coal dewatering effectiveness and maintenance is one of them, says Donald A. Dahlstrom, at the University of Utah. Dewatering of fine coal is increasingly important, because electricity generation, the largest coal consumer, is so strongly affected by the moisture content. Every pound of water put into a boiler raises costs about 2 1/2 cents. The heat it takes to turn water to steam and get it out the stack is heat that could have been used to generate power. In addition, there is the cost of shipping the water. You can add the freight costs to that. In contrast it costs about 1/2-cent/lb to remove the water at the preparation plant.

  4. FINE PARTICAL AND TOXIC METAL EMISSIONS FROM THE COMBUSTION OF SEWAGE SLUDGE/COAL MIXTURES: A SYSTEMATIC ASSESSMENT

    SciTech Connect (OSTI)

    Jost O.L. Wendt; Wayne S. Seames; Art Fernandez

    2003-09-21

    This research project focuses on pollutants from the combustion of mixtures of dried municipal sewage sludge (MSS) and pulverized coal. The objective was to determine potential tradeoffs between CO{sub 2} mitigation through using a CO{sub 2} neutral fuel, such as municipal sewage sludge, and the emergence of other potential problems such as the emission of toxic fly ash particles. The work led to new insight into mechanisms governing the partitioning of major and trace metals from the combustion of sewage sludge, and mixtures of coal and sewage sludge. The research also showed that the co-combustion of coal and sewage sludge emitted fine particulate matter that might potentially cause greater lung injury than that from the combustion of either coal alone or municipal sewage sludge alone. The reason appeared to be that the toxicity measured required the presence of large amounts of both zinc and sulfur in particles that were inhaled. MSS provided the zinc while coal provided the sulfur. Additional research showed that the toxic effects could most likely be engineered out of the process, through the introduction of kaolinite sorbent downstream of the combustion zone, or removing the sulfur from the fuel. These results are consequences of applying ''Health Effects Engineering'' to this issue. Health Effects Engineering is a new discipline arising out of this work, and is derived from using a collaboration of combustion engineers and toxicologists to mitigate the potentially bad health effects from combustion of this biomass fuel.

  5. Computational Challenges and Opportunities for Fine Scale Mapping of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Complete Brains | Argonne Leadership Computing Facility Computational Challenges and Opportunities for Fine Scale Mapping of Complete Brains Event Sponsor: Computation Institute Presentation Start Date: Feb 11 2016 - 12:00pm Building/Room: Searle 240A, 5735 S. Ellis Ave., via Blue Jeans (See Webcast below) Location: The University of Chicago Speaker(s): Narayanan "Bobby" Kasthuri Speaker(s) Title: University of Chicago Host: Ian Foster The Kasthuri lab is pioneering new techniques

  6. Evaluation Criteria for PDIL Proposal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Criteria for PDIL Proposal The selection/decision criteria used by the NCPV Business Development Team are the following: 1. Quality and Relevance of the Proposed Technical Plan (30%) * Technology impact with industry and likelihood of success. Demonstrated benefits of success to both the proposer and NREL to meet the DOE SunShot goals. * Proposed task descriptions and time line. Clear demonstration of entrance and exit strategies in the PDIL. * Extent to which the Proposer and NREL can rapidly

  7. Engine-External HC-Dosing for Regeneration of Diesel Particulate Filters

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    for Heavy Duty and NRMM According to Annex XXVII StVZO | Department of Energy Engine-External HC-Dosing for Regeneration of Diesel Particulate Filters for Heavy Duty and NRMM According to Annex XXVII StVZO Engine-External HC-Dosing for Regeneration of Diesel Particulate Filters for Heavy Duty and NRMM According to Annex XXVII StVZO This presentation discusses how a diesel particulate filter can be integrated in the exhaust piping of a heavy-duty engine. PDF icon deer08_rembor.pdf More

  8. MODELING OF LONG-TERM FATE OF MOBILIZED FINES DUE TO DAM-EMBANKMENT...

    Office of Scientific and Technical Information (OSTI)

    FINES DUE TO DAM-EMBANKMENT INTERFACIAL DISLOCATIONS Citation Details In-Document Search Title: MODELING OF LONG-TERM FATE OF MOBILIZED FINES DUE TO DAM-EMBANKMENT ...

  9. Cyber Power Group Ltd aka Fine Silicon Co Ltd | Open Energy Informatio...

    Open Energy Info (EERE)

    Cyber Power Group Ltd aka Fine Silicon Co Ltd Jump to: navigation, search Name: Cyber Power Group Ltd (aka Fine Silicon Co Ltd) Place: Baoding, Hebei Province, China Product:...

  10. Monitoring Fine Sediment; Grande Ronde and John Day Rivers, 1999 Annual Report.

    SciTech Connect (OSTI)

    Rhodes, Jonathan J.; Greene, M. Jonas; Purser, Michael D.

    2000-01-01

    This project was initiated to monitor surface fine sediment levels and overwinter intrusion of fine sediment in spring chinook salmon spawning habitat in the North Folk John Day and Grande Ronde Rivers, for five years.

  11. DOE Withdraws Proposed Rulemaking (Test Procedure) and Proposed Coverage

    Office of Environmental Management (EM)

    Determination (Energy Conservation Standard) for Set-Top Boxes | Department of Energy Withdraws Proposed Rulemaking (Test Procedure) and Proposed Coverage Determination (Energy Conservation Standard) for Set-Top Boxes DOE Withdraws Proposed Rulemaking (Test Procedure) and Proposed Coverage Determination (Energy Conservation Standard) for Set-Top Boxes December 23, 2013 - 12:00am Addthis The Department of Energy (DOE) has issued pre-publication Federal Register notices withdrawing the notice

  12. On-Board Engine Exhaust Particulate Matter Sensor for HCCI and Conventional Diesel Engines

    SciTech Connect (OSTI)

    Hall, Matt; Matthews, Ron

    2011-09-30

    The goal of the research was to refine and complete development of an on-board particulate matter (PM) sensor for diesel, DISI, and HCCI engines, bringing it to a point where it could be commercialized and marketed.

  13. Engine-External HC-Dosing for Regeneration of Diesel Particulate...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Filters for Heavy Duty and NRMM According to Annex XXVII StVZO Engine-External HC-Dosing for Regeneration of Diesel Particulate Filters for Heavy Duty and NRMM According to ...

  14. Monitoring and Control of Alkali Volatilization and Batch Carryover for Minimization of Particulates and Crown Corrosion

    SciTech Connect (OSTI)

    2001-01-01

    New Technology will Allow Glass Manufacturers to Optimize Furnace Conditions. Laser-induced breakdown spectroscopy is a continuous monitoring technique that glass manufacturers can use to reduce particulate matter emissions and extend furnace life.

  15. Optical backscatter probe for sensing particulate in a combustion gas stream

    DOE Patents [OSTI]

    Parks, James E; Partridge, William P

    2013-05-28

    A system for sensing particulate in a combustion gas stream is disclosed. The system transmits light into a combustion gas stream, and thereafter detects a portion of the transmitted light as scattered light in an amount corresponding to the amount of particulates in the emissions. Purge gas may be supplied adjacent the light supply and the detector to reduce particles in the emissions from coating or otherwise compromising the transmission of light into the emissions and recovery of scattered light from the emissions.

  16. Imaging of Diesel Particulate Filters using a High-Flux Neutron Source |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Imaging of Diesel Particulate Filters using a High-Flux Neutron Source Imaging of Diesel Particulate Filters using a High-Flux Neutron Source Detailed images of deposits identified inside automotive DPFs using neutrons show how the deposits of soot, ash, and washcoat occurs within the filter. PDF icon p-14_toops.pdf More Documents & Publications Neutron Imaging of Advanced Engine Technologies Neutron Imaging of Advanced Engine Technologies Non-Destructive Neutron

  17. Evaluation of Passive and Active Soot Filters for Removal of Particulate

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Emissions from Diesel Engines | Department of Energy Passive and Active Soot Filters for Removal of Particulate Emissions from Diesel Engines Evaluation of Passive and Active Soot Filters for Removal of Particulate Emissions from Diesel Engines 2002 DEER Conference Presentation: Cummins, Inc. PDF icon 2002_deer_bunting.pdf More Documents & Publications Exhaust Aftertreatment and Low Pressure Loop EGR Applied to an Off-Highway Engine Active Soot Filter Regeneration Development and Field

  18. Development of SCR on Diesel Particulate Filter System for Heavy Duty

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Applications | Department of Energy SCR on Diesel Particulate Filter System for Heavy Duty Applications Development of SCR on Diesel Particulate Filter System for Heavy Duty Applications Evaluation of a system consisting of SCRDPF in comparison to a commercial 2010 CDPF system on an engine under high and low engine-out NOx conditions PDF icon deer12_naseri.pdf More Documents & Publications Investigation on continuous soot oxidation and NOx reduction by SCR coated DPF SCR-DPF Integrations

  19. Development of an Accelerated Ash-Loading Protocol for Diesel Particulate

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Filters | Department of Energy an Accelerated Ash-Loading Protocol for Diesel Particulate Filters Development of an Accelerated Ash-Loading Protocol for Diesel Particulate Filters Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT). PDF icon deer07_bunting_2.pdf More Documents & Publications

  20. Burning Modes and Oxidation Rates of Soot: Relevance to Diesel Particulate

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Traps | Department of Energy Burning Modes and Oxidation Rates of Soot: Relevance to Diesel Particulate Traps Burning Modes and Oxidation Rates of Soot: Relevance to Diesel Particulate Traps Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT). PDF icon deer07_vanderwal.pdf More Documents &

  1. Fine structure on the green band in ZnO

    SciTech Connect (OSTI)

    Reynolds, D. C.; Look, D. C.; Jogai, B.

    2001-06-01

    An emission band at 2.4 eV, called the green band, is observed in most ZnO samples, no matter what growth technique is used. Sometimes this band includes fine structure, which consists mainly of doublets, repeated with a longitudinal-optical-phonon-energy spacing (72 meV). We have developed a vibronic model for the green band, based on transitions from two separate shallow donors to a deep acceptor. The donors, at energies 30 and 60 meV from the conduction-band edge, respectively, are also found from Hall-effect measurements. {copyright} 2001 American Institute of Physics.

  2. New Measurement Explores Fine Details of Proton Structure | Jefferson Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Measurement Explores Fine Details of Proton Structure BigCal, contained 1,744 lead glass bars The new calorimeter, called BigCal, contained 1,744 lead glass bars, such as the one shown, for detecting the scattered electrons. A collaboration of scientists is probing deep inside the proton at Jefferson Lab by measuring quantities that relate to the proton's shape and size. These so-called form factors give scientists a tool for studying the proton's inner structure. "In principle, we would

  3. Process for preparing fine grain titanium carbide powder

    DOE Patents [OSTI]

    Janney, M.A.

    1985-03-12

    A method for preparing finely divided titanium carbide powder in which an organotitanate is reacted with a carbon precursor polymer to provide an admixture of the titanium and the polymer at a molecular level due to a crosslinking reaction between the organotitanate and the polymer. The resulting gel is dried, pyrolyzed to drive off volatile components and provide carbon. The resulting solids are then heated at an elevated temperature to convert the titanium and carbon to high-purity titanium carbide powder in a submicron size range.

  4. Process for making ultra-fine ceramic particles

    DOE Patents [OSTI]

    Stangle, Gregory C. (Alfred, NY); Venkatachari, Koththavasal R. (Hornell, NY); Ostrander, Steven P. (Scotia, NY); Schulze, Walter A. (Alfred Station, NY)

    1995-01-01

    A process for producing ultra-fine ceramic particles in which droplets are formed from a ceramic precursor mixture containing a metal cation, a nitrogen-containing fuel, a solvent, and an anion capable of participating in an anionic oxidation-reduction reaction with the nitrogen containing fuel. The nitrogen-containing fuel contains at least three nitrogen atoms, at least one oxygen atom, and at least one carbon atom. The ceramic precursor mixture is dried to remove at least 85 weight percent of the solvent, and the dried mixture is then ignited to form a combusted powder.

  5. Process for preparing fine grain titanium carbide powder

    DOE Patents [OSTI]

    Janey, Mark A. (Concord, TN)

    1986-01-01

    A method for preparing finely divided titanium carbide powder in which an organotitanate is reacted with a carbon precursor polymer to provide an admixture of the titanium and the polymer at a molecular-level due to a crosslinking reaction between the organotitanate and the polymer. The resulting gel is dried, pyrolyzed to drive off volatile components and provide carbon. The resulting solids are then heated at an elevated temperature to convert the titanium and carbon to high-purity titanium carbide powder in a submicron size range.

  6. ARM - Submitting Proposals : Guideline Overview

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    govField CampaignsSubmitting Proposals : Guideline Overview Guidelines Overview Annual Facility Call Small Field Campaigns Review Criteria Expectations for Principal Investigators Forms Propose a Campaign Instrument Support Request (ISR) Form (Word, 89KB) Documentation Steps for Submitting Field Campaign Data and Metadata Field Campaign Guidelines (PDF, 574KB) Submitting Proposals : Guideline Overview Proposals are welcome from all members of the scientific community for conducting field

  7. Unsolicited Proposals | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Unsolicited Proposals Unsolicited Proposals The Department of Energy's (DOE's) central point of receipt for all Unsolicited Proposals is the National Energy Technology Laboratory (NETL) which includes all DOE Program Research Areas. http://www.netl.doe.gov/business/usp/unsol.html

  8. Particulate Matter Sampling and Volatile Organic Compound Removal for Characterization of Spark Ignited Direct Injection Engine Emissions

    SciTech Connect (OSTI)

    Matthias, Nicholas; Farron, Carrie; Foster, David E.; Andrie, Michael; Krieger, Roger; Najt, Paul M.; Narayanaswamy, Kushal; Solomon, Arun S.; Zelenyuk, Alla

    2012-01-01

    More stringent emissions regulations are continually being proposed to mitigate adverse human health and environmental impacts of internal combustion engines. With that in mind, it has been proposed that vehicular particulate matter (PM) emissions should be regulated based on particle number in addition to particle mass. One aspect of this project is to study different sample handling methods for number based aerosol measurements, specifically, two different methods for removing volatile organic compounds (VOCs). One method is a thermodenuder (TD) and the other is an evaporative chamber/diluter (EvCh). These sample handling methods have been implemented in an engine test cell with a spark ignited direct injection (SIDI) engine. The engine was designed for stoichiometric, homogeneous combustion. SIDI is of particular interest for improved fuel efficiency compared to other SI engines, however, the efficiency benefit comes with greater PM emissions and may therefore be subject to the proposed number based PM regulation. Another aspect of this project is to characterize PM from this engine in terms of particle number and composition.

  9. Particulate Matter Sampling and Volatile Organic Compound Removal for Characterization of Spark Ignited Direct Injection Engine Emissions

    SciTech Connect (OSTI)

    Matthias, Nicholas; Farron, Carrie; Foster, David E.; Andrie, Michael; Krieger, Roger; Najt, Paul; Narayanaswamy, Kushal; Solomon, Arun S.; Zelenyuk, Alla

    2012-01-01

    More stringent emissions regulations are continually being proposed to mitigate adverse human health and environmental impacts of internal combustion engines. With that in mind, it has been proposed that vehicular particulate matter (PM) emissions should be regulated based on particle number in addition to particle mass. One aspect of this project is to study different sample handling methods for number based aerosol measurements, specifically, two different methods for removing volatile organic compounds (VOCs). One method is a thermodenuder (TD) and the other is an evaporative chamber/diluter (EvCh). These sample handling methods have been implemented in an engine test cell with a spark ignited direct injection (SIDI) engine. The engine was designed for stoichiometric, homogeneous combustion. SIDI is of particular interest for improved fuel efficiency compared to other SI engines, however, the efficiency benefit comes with greater PM emissions and may therefore be subject to the proposed number based PM regulation. Another aspect of this project is to characterize PM from this engine in terms of particle number and composition

  10. Supercritical fluid molecular spray thin films and fine powders

    DOE Patents [OSTI]

    Smith, Richard D.

    1988-01-01

    Solid films are deposited, or fine powders formed, by dissolving a solid material into a supercritical fluid solution at an elevated pressure and then rapidly expanding the solution through a short orifice into a region of relatively low pressure. This produces a molecular spray which is directed against a substrate to deposit a solid thin film thereon, or discharged into a collection chamber to collect a fine powder. The solvent is vaporized and pumped away. Solution pressure is varied to determine, together with flow rate, the rate of deposition and to control in part whether a film or powder is produced and the granularity of each. Solution temperature is varied in relation to formation of a two-phase system during expansion to control porosity of the film or powder. A wide variety of film textures and powder shapes are produced of both organic and inorganic compounds. Films are produced with regular textural feature dimensions of 1.0-2.0 .mu.m down to a range of 0.01 to 0.1 .mu.m. Powders are formed in very narrow size distributions, with average sizes in the range of 0.02 to 5 .mu.m.

  11. Proposal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    20.4 38.3 events) is observed at lower energies (E < 475 MeV), where the first error is statistical and the second error is systematic. The lack of a significant excess at...

  12. Sizes, graphitic structures and fractal geometry of light-duty diesel engine particulates.

    SciTech Connect (OSTI)

    Lee, K. O.; Zhu, J.; Ciatti, S.; Choi, M. Y.; Energy Systems; Drexel Univ.

    2003-01-01

    The particulate matter of a light-duty diesel engine was characterized in its morphology, sizes, internal microstructures, and fractal geometry. A thermophoretic sampling system was employed to collect particulates directly from the exhaust manifold of a 1.7-liter turbocharged common-rail direct-injection diesel engine. The particulate samples collected at various engine-operating conditions were then analyzed by using a high-resolution transmission electron microscope (TEM) and an image processing/data acquisition system. Results showed that mean primary particle diameters (dp), and radii of gyration (Rg), ranged from 19.4 nm to 32.5 nm and 77.4 nm to 134.1 nm, respectively, through the entire engine-operating conditions of 675 rpm (idling) to 4000 rpm and 0% to 100% loads. It was also revealed that the other important parameters sensitive to the particulate formation, such as exhaust-gas recirculation (EGR) rate, equivalence ratio, and temperature, affected particle sizes significantly. Bigger primary particles were measured at higher EGR rates, higher equivalence ratios (fuel-rich), and lower exhaust temperatures. Fractal dimensions (D{sup f}) were measured at a range of 1.5 - 1.7, which are smaller than those measured for heavy-duty direct-injection diesel engine particulates in our previous study. This finding implies that the light-duty diesel engine used in this study produces more stretched chain-like shape particles, while the heavy-duty diesel engine emits more spherical particles. The microstructures of diesel particulates were observed at high TEM magnifications and further analyzed by a Raman spectroscope. Raman spectra revealed an atomic structure of the particulates produced at high engine loads, which is similar to that of typical graphite.

  13. Price/Cost Proposal Form

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    PRICE/COST PROPOSAL FORM Page No. of NREL Solicitation Document Number: Offeror's Name and Address: Title of Proposed Effort and Task No., Phase No., or Project Total, As Applicable: Telephone Number: Total Amount of Task/Phase No. ___________ $ _______________________ Proposal Summary Total $ ________________________ DETAIL DESCRIPTION OF COST ELEMENTS 1. DIRECT MATERIALS (Attach Itemized Listing for all Purchased Parts, Purchased Items or Services, Raw Materials, Standard Commercial Items, or

  14. Unsolicited Proposals | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    for all Unsolicited Proposals is the National Energy Technology Laboratory (NETL) which includes all DOE Program Research Areas. http:www.netl.doe.govbusinessuspunsol.html...

  15. Characterization and modification of particulate properties to enhance filtration performance

    SciTech Connect (OSTI)

    Snyder, T.R.; Robinson, M.S.; Vann Bush, P.

    1989-06-22

    This report describes the results of project activities that occurred during the period from March 1 through May 31, 1989. The organization of this report generally follows the outline of work presented in the Project Work Plan. Work performed during this period included tests under Task 2 -- Parametric Tests of Ashes and Fabrics, and Task 3 -- Survey of Methods to Modify Particle Filtration Properties. Discussion of the Task 2 work has been organized topically, rather than adhering to the activities specified in the Work Plan. Cohesive ash from the Tennessee Valley Authority's 160 MW Atmospheric Fluidized-Bed Combustor at the Shawnee Plant in Paducah, Kentucky was obtained during this quarter and has been analyzed in the laboratory. The second phase of the abstract search and review of pertinent articles included in activity 3.1 is nearly complete. A summary of this phase of the literature search is included in this report. A variety of potential conditioning agents have been evaluated during this reporting period. These agents include sodium bicarbonate, hydrated lime, various grades of fine silica powder, gasifier char, glass beads and glass fibers. The three source ashes have been mixed with these agents in different concentrations and using various mixing techniques. These tests are continuing, and this report contains a summary of the combinations evaluated during this past quarter. 17 figs., 7 tabs.

  16. Programmable Differential Delay Circuit With Fine Delay Adjustment

    DOE Patents [OSTI]

    DeRyckere, John F. (Eau Claire, WI); Jenkins, Philip Nord (Eau Claire, WI); Cornett, Frank Nolan (Chippewa Falls, WI)

    2002-07-09

    Circuitry that provides additional delay to early arriving signals such that all data signals arrive at a receiving latch with same path delay. The delay of a forwarded clock reference is also controlled such that the capturing clock edge will be optimally positioned near quadrature (depending on latch setup/hold requirements). The circuitry continuously adapts to data and clock path delay changes and digital filtering of phase measurements reduce errors brought on by jittering data edges. The circuitry utilizes only the minimum amount of delay necessary to achieve objective thereby limiting any unintended jitter. Particularly, this programmable differential delay circuit with fine delay adjustment is designed to allow the skew between ASICS to be minimized. This includes skew between data bits, between data bits and clocks as well as minimizing the overall skew in a channel between ASICS.

  17. Stabilizing soft fine-grained soils with fly ash

    SciTech Connect (OSTI)

    Edil, T.B.; Acosta, H.A.; Benson, C.H.

    2006-03-15

    The objective of this study was to evaluate the effectiveness of self-cementing fly ashes derived from combustion of subbituminous coal at electric power plants for stabilization of soft fine-grained soils. California bearing ratio (CBR) and resilient modulus (M{sub r}) tests were conducted on mixtures prepared with seven soft fine-grained soils (six inorganic soils and one organic soil) and four fly ashes. The soils were selected to represent a relatively broad range of plasticity, with plasticity indices ranging between 15 and 38. Two of the fly ashes are high quality Class C ashes (per ASTM C 618) that are normally used in Portland cement concrete. The other ashes are off-specification ashes, meaning they do not meet the Class C or Class F criteria in ASTM C 618. Tests were conducted on soils and soil-fly ash mixtures prepared at optimum water content (a standardized condition), 7% wet of optimum water content (representative of the typical in situ condition in Wisconsin), and 9-18% wet of optimum water content (representative of a very wet in situ condition). Addition of fly ash resulted in appreciable increases in the CBR and M{sub r} of the inorganic soils. For water contents 7% wet of optimum, CBRs of the soils alone ranged between 1 and 5. Addition of 10% fly ash resulted in CBRs ranging between 8 and 17, and 18% fly ash resulted in CBRs between 15 and 31. Similarly, M{sub r} of the soil alone ranged between 3 and 15 MPa at 7% wet of optimum, whereas addition of 10% fly ash resulted in M{sub r} between 12 and 60 MPa and 18% fly ash resulted in M{sub r} between 51 and 106 MPa. In contrast, except for one fly ash, addition of fly ash generally had little effect on CBR or M{sub r} of the organic soil.

  18. Development of a Low-Cost Particulate Matter Monitor

    SciTech Connect (OSTI)

    White, Richard M.; Apte, Michael G.; Gundel, Lara A.; Black, Justin

    2008-08-01

    We describe a small, inexpensive portable monitor for airborne particulates, composed of the following elements: a. A simple size-selective inlet (vertical elutriator) that permits only particles below a pre-set diameter to pass and enter the measurement section; b. A measurement section in which passing particles are deposited thermophoretically on a micro-fabricated resonant piezoelectric mass sensor; c. An optical characterization module co-located with the mass sensor module that directs infrared and ultraviolet beams through the deposit. The emergent optical beams are detected by a photodiode. The optical absorption of the deposit can be measured in order to characterize the deposit, and determine how much is due to diesel exhaust and/or environmental tobacco smoke; and d. A small pump that moves air through the device, which may also be operated in a passive mode. The component modules were designed by the project team, and fabricated at UCB andLBNL. Testing and validation were performed in a room-sized environmental chamber at LBNL in to which was added either environmental tobacco smoke (ETS, produced by a cigarette smoking machine) or diesel exhaust (from a conventional diesel engine). Two pilot field tests in a dwelling compared the monitor with existing aerosol instruments during exposure to infiltrated ambient air to which cigarette smoke, diesel exhaust, wood smoke and cooking fumes were added. The limit of detection (LOD) derived from statistical analysis of field data is 18 mu g m-3, at the 99percent confidence level. The monitor weighs less than 120 g and has a volume of roughly 250 cm3. Power consumption is approximately 100 milliwatts. During this study, the optical component of the device was not fully implemented and has been left for future efforts. Suggested improvements in the current prototype include use of integrated thermal correction, reconfiguration of the resonator for increased particle collection area, increased thermophoretic collection efficiency using an increased temperature gradient, and shielding the resonator electronics from deposition of ultrafine particles.

  19. Advances in controlling particulate emissions from fossil-fired power plants

    SciTech Connect (OSTI)

    Chang, R.

    1995-12-31

    Present and possible future Federal, state, and local air pollutant emission regulations coupled with an increasingly competitive business environment and the aging of existing particulate control equipment are motivating utilities to improve particulate control system effectiveness and reduce control cost. To these ends, several cost-effective means of improving particulate control are being developed and tested. Three fossil plant retrofit technologies of note include two flue gas conditioning systems--one ``agentless`` arrangement that uses the SO{sub 2} in the flue gas as the raw material for an SO{sub 3} conditioning system, and a promising new additive that has performed well in laboratory and pilot-scale tests. A second retrofit technology supplements all or most of the existing electrostatic precipitator with a pulse-jet baghouse. A third approach described in this paper is one example of a new class of advanced filtration systems, some of which can remove NO{sub x} and particulate in the same vessel. Technologies like these will enable utilities to boost particulate removal effectiveness after switching to lower-sulfur coal for Clean Air Act compliance, minimize compliance costs, and optimally position themselves for possible further emission regulations.

  20. Plasma regenerated particulate trap and NO.sub.x reduction system

    DOE Patents [OSTI]

    Penetrante, Bernardino M. (San Ramon, CA); Vogtlin, George E. (Fremont, CA); Merritt, Bernard T. (Livermore, CA); Brusasco, Raymond M. (Livermore, CA)

    2000-01-01

    A non-catalytic two-stage process for removal of NO.sub.x and particulates from engine exhaust comprises a first stage that plasma converts NO to NO.sub.2 in the presence of O.sub.2 and hydrocarbons, and a second stage, which preferably occurs simultaneously with the first stage, that converts NO.sub.2 and carbon soot particles to respective environmentally benign gases that include N.sub.2 and CO.sub.2. By preconverting NO to NO.sub.2 in the first stage, the efficiency of the second stage for NO.sub.x reduction is enhanced while carbon soot from trapped particulates is simultaneously converted to CO.sub.2 when reacting with the NO.sub.2 (that converts to N.sub.2). For example, an internal combustion engine exhaust is connected by a pipe to a chamber where carbon-containing particulates are electrostatically trapped or filtered and a non-thermal plasma converts NO to NO.sub.2 in the presence of O.sub.2 and hydrocarbons. Volatile hydrocarbons (C.sub.x H.sub.y) from the trapped particulates are oxidized in the plasma and the remaining soot from the particulates reacts with the NO.sub.2 to convert NO.sub.2 to N.sub.2, and the soot to CO.sub.2. The nitrogen exhaust components remain in the gas phase throughout the process, with no accompanying adsorption.

  1. Impact of Biodiesel on the Oxidation Kinetics and Morphology of Diesel Particulate

    SciTech Connect (OSTI)

    Strzelec, Andrea; Toops, Todd J; Daw, C Stuart

    2011-01-01

    We compare the oxidation characteristics of four different diesel particulates generated with a modern light-duty engine. The four particulates represent engine fueling with conventional ultra-low sulfur diesel (ULSD), biodiesel, and two intermediate blends of these fuels. The comparisons discussed here are based on complementary measurements implemented in a laboratory micro-reactor, including temperature programmed desorption and oxidation, pulsed isothermal oxidation, and BET surface area. From these measurements we have derived models that are consistent with the observed oxidation reactivity differences. When accessible surface area effects are properly accounted for, the oxidation kinetics of the fixed carbon components were found to consistently exhibit an Arrhenius activation energy of 113 6 kJ/mol. Release of volatile carbon from the as-collected particulate appears to follow a temperaturedependent rate law.

  2. Investigations of release phenomenon of volatile organic compounds and particulates from residual storage chip piles

    SciTech Connect (OSTI)

    Mohan, S.; Nagarkatti, M.

    1996-12-31

    This paper outlines the method for estimating Particulate Matter and Volatile Organic Compounds (VOCs) emissions from wood handling and storage operations at a pulp mill. Fugitive particulate matter emissions from wood handling and storage operations are due to material load/dropout operations, wind erosion from storage piles and vehicular traffic on paved roads. The particulate matter emissions are a function of a number of variables like windspeed, surface moisture content, material silt content, and number of days of precipitation. Literature review attributes VOC emissions to biological, microbiological, chemical, and physical processes occurring in wood material storage pile. The VOC emissions are from the surface of these piles and the VOC released during retrieval of chips from the pile. VOC emissions are based on the chip throughput, number of turnovers, moisture content and surface area of the pile. The emission factors with the requisite calculation methodology to be utilized for quantifying VOC emissions from chip piles has been discussed in this paper.

  3. Apparatus for real-time airborne particulate radionuclide collection and analysis

    DOE Patents [OSTI]

    Smart, John E. (West Richland, WA); Perkins, Richard W. (Richland, WA)

    2001-01-01

    An improved apparatus for collecting and analyzing an airborne particulate radionuclide having a filter mounted in a housing, the housing having an air inlet upstream of the filter and an air outlet downstream of the filter, wherein an air stream flows therethrough. The air inlet receives the air stream, the filter collects the airborne particulate radionuclide and permits a filtered air stream to pass through the air outlet. The improvement which permits real time counting is a gamma detecting germanium diode mounted downstream of the filter in the filtered air stream. The gamma detecting germanium diode is spaced apart from a downstream side of the filter a minimum distance for a substantially maximum counting detection while permitting substantially free air flow through the filter and uniform particulate radionuclide deposition on the filter.

  4. Original Workshop Proposal and Description

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Notes for Vis Requirements » Original Workshop Proposal and Description Original Workshop Proposal and Description Visualization Requirements for Computational Science and Engineering Applications Proposal for a DoE Workshop to Be Held 
at the Berkeley Marina Radisson Hotel,
Berkeley, California, June 5, 2002
(date and location are tenative) Workshop Co-organizers: Bernd Hamann 
University of California-Davis Lawrence Berkeley Nat'l Lab. E. Wes Bethel 
Lawrence Berkeley Nat'l Lab.

  5. Original Workshop Proposal and Description

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and Engineering Applications Proposal for a DoE Workshop to Be Held at the Berkeley Marina Radisson Hotel,Berkeley, California, June 5, 2002(date and location are...

  6. In Vitro Genotoxicity of Particulate and Semi-Volatile Organic Compound

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Exhaust Materails from a Set of Gasoline and a Set of Diesel Engine Vehicles Operated at 30°F | Department of Energy Particulate and Semi-Volatile Organic Compound Exhaust Materails from a Set of Gasoline and a Set of Diesel Engine Vehicles Operated at 30°F In Vitro Genotoxicity of Particulate and Semi-Volatile Organic Compound Exhaust Materails from a Set of Gasoline and a Set of Diesel Engine Vehicles Operated at 30°F 2003 DEER Conference Presentation: Centers for Disease Control and

  7. Testing an Active Diesel Particulate Filter on a 2-Cycle Marine Engine |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy an Active Diesel Particulate Filter on a 2-Cycle Marine Engine Testing an Active Diesel Particulate Filter on a 2-Cycle Marine Engine Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. PDF icon 2006_deer_depetrillo.pdf More Documents & Publications Active Diesel Emission Control Technology for Sub-50 HP Engines with Low Exhaust Temperature Profiles

  8. MOL.19980331.0174 PARTICULATE MATTEX AMBIENT A I R QUALITY

    National Nuclear Security Administration (NNSA)

    MOL.19980331.0174 PARTICULATE MATTEX AMBIENT A I R QUALITY DATA REPORT FOR 1989 AND 1990 WBS No. 1.2.5.4.2 Contract No. DE-AC08-87NVl0576 March 1992 Prepared by: Radiological/Environmental Field Programs Department Science Applications International Corporation Technical & Management Support Services Las Vegas, Nevada 1.0 MECUTIVE SUMMARY Routine particulate matter ambient air quality monitoring has been performed at two stations in the Yucca Mountain air monitoring network since the spring

  9. NNA.921218.0092 PARTICULATE MATIER AMEIENT AIR QUALITY DATA REPORT FOR 1991

    National Nuclear Security Administration (NNSA)

    NNA.921218.0092 PARTICULATE MATIER AMEIENT AIR QUALITY DATA REPORT FOR 1991 WBS No. 1.2.13.4.2 Contract No. DE-ACO8-87NV10576 Oc tobe r 199 2 Prepared by: Radiological/Environmental Field Programs Department Science Applications International Corporation Technical & Management Support Services L a s Vegas, Nevada TABLE OF CONTENTS m Section 1. Executive Summary 2. 3. Results Particulate Matter Ambient Air Quality Monitoring Methods List of Tables 1-1 3-1 3-2 3-3 3-4 3-5 3-6 Page 1-1 2-1 3-1

  10. Technical Proposal Disclosure Policy - ITER

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposal Disclosure Policy - ITER Pursuant to this solicitation, UT-Battelle will treat confidential proposal information as such and will disclose such information on a need to know basis to UT-Battelle employees and agents, DOE, and ITER- International Organization (ITER-IO) representatives for purposes of evaluation. It is hereby noted that any information distributed to ITER-IO will be of a technical nature; pricing information will not be distributed to ITER-IO.

  11. Research Proposals | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    How to Apply » Research Proposals Research Proposals The EERE Postdoctoral Research Awards are intended to be an avenue for significant energy efficiency and renewable energy innovation. To enable the participant's creativity as they conduct their postdoctoral research, the Research Awards have been designed to follow the "Innovation Time Out" model so that participants allot roughly 80% of their time to their core project research tasks and 20% of their time to "innovation"

  12. Varying fine structure 'constant' and charged black holes

    SciTech Connect (OSTI)

    Bekenstein, Jacob D.; Schiffer, Marcelo

    2009-12-15

    Speculation that the fine-structure constant {alpha} varies in spacetime has a long history. We derive, in 4-D general relativity and in isotropic coordinates, the solution for a charged spherical black hole according to the framework for dynamical {alpha} J. D. Bekenstein, Phys. Rev. D 25, 1527 (1982).. This solution coincides with a previously known one-parameter extension of the dilatonic black hole family. Among the notable properties of varying-{alpha} charged black holes are adherence to a 'no hair' principle, the absence of the inner (Cauchy) horizon of the Reissner-Nordstroem black holes, the nonexistence of precisely extremal black holes, and the appearance of naked singularities in an analytic extension of the relevant metric. The exteriors of almost extremal electrically (magnetically) charged black holes have simple structures which makes their influence on applied magnetic (electric) fields transparent. We rederive the thermodynamic functions of the modified black holes; the otherwise difficult calculation of the electric potential is done by a shortcut. We confirm that variability of {alpha} in the wake of expansion of the universe does not threaten the generalized second law.

  13. Controlling particulates, temperature, and tritium in an inert glovebox for a weapons program

    SciTech Connect (OSTI)

    Purson, J.D.; Powers, D.; Walthers, C.; Navarro, C.; Newman, E.; Romero, J.; Jenkins, R.

    1996-07-01

    A glovebox is described in which several environmental parameters are controlled and monitored. Included in these are particulate, tritium, water vapor, oxygen and temperature. The paper details the design rationale and process and describes the glovebox, presently in use for neutron generator production.

  14. Methods of hydrolyzing pretreated densified biomass particulates and systems related thereto

    DOE Patents [OSTI]

    Bals, Bryan; Teymouri, Farzaneh; Campbell, Tim; Dale, Bruce

    2015-02-03

    A method is provided in which pretreated and densified cellulosic biomass particulates can be hydrolyzed at a high solids loading rate as compared with the solids loading rate of loose hydrolysable cellulosic biomass fibers. The resulting high concentration sugar-containing stream can be easily converted to biofuels or an entire suite of other useful bioproducts.

  15. Diesel Particulate Filters and NO2 Emission Limits | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Filters and NO2 Emission Limits Diesel Particulate Filters and NO2 Emission Limits EPAs New air quality standards for NO2 will impact future DPF designs PDF icon deer09_ibrahim.pdf More Documents & Publications RYPOS - An Actively Regenerated DPF that Demonstrates Significant NO2 Reduction Emission Controls for Heavy-Duty Trucks RYPOS Trap Field Demonstrations Part 1

  16. proposed surface and subsurface marker designs

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Images of proposed markers for the surface and subsurface Large Surface Marker - Proposed Design with Plaques of Text and Images Small Subsurface Marker - Proposed Design

  17. Proposed Changes to Electricity and Renewable (Photovoltaic)...

    U.S. Energy Information Administration (EIA) Indexed Site

    2017 Proposed Solar & Electricity Survey Form Changes 1 November 2015 Proposed Changes to Electricity and ... U.S. Energy Information Administration | 2017 Proposed Solar & ...

  18. Proposal Submittal and Scheduling Procedures for Macromolecular...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Crystallography Proposal. This proposal is peer reviewed by the Structural Molecular Biology and Biophysics subpanel of the SSRL Proposal Review Panel (PRP) for scientific merit...

  19. Category:Proposed deletion | Open Energy Information

    Open Energy Info (EERE)

    History Category:Proposed deletion Jump to: navigation, search This category contains articles which have been proposed for deletion. To tag an article for proposed deletion use...

  20. Monitoring Fine Sediment; Grande Ronde and John Day Rivers, 2000 Annual Report.

    SciTech Connect (OSTI)

    Rhodes, Jonathan J.; Greene, M. Jonas; Purser, Michael D.

    2001-01-01

    Fine sediment in spawning substrate has a major effect on salmon survival from egg to smolt. Basin-wide restoration plans have established targets for fine sediment levels in spawning habitat. The project was initiated to monitor surface fine sediment levels and overwinter intrusion of fine sediment in spring chinook salmon spawning habitat in the North Fork John Day (NFJDR) and Grande Ronde Rivers, for five years. The project is also investigating the potential relationship between surface fine levels and overwinter sedimentation. It will provide data to assess trends in substrate conditions in monitored reaches and whether trends are consistent with efforts to improve salmon habitat conditions. The data on the magnitude of overwinter sedimentation will also be used to estimate salmon survival from egg to emergence. In Sept. 1998, 1999, and Aug. 2000, sites for monitoring overwinter sedimentation were established in salmon spawning habitat in the upper Grande Ronde River, Catherine Creek (a Grande Ronde tributary), the North Fork John Day River (NFJDR), and Granite Creek (a NFJDR tributary). Surface fine sediment levels were measured in these reaches via the grid method and visually estimated to test the relative accuracy of these two methods. In 1999 and 2000, surface fine sediment was also estimated via pebble counts at selected reaches to allow comparison of results among the methods. Overwintering substrate samples were collected in April 1999 and April-May 2000 to estimate the amount of overwinter sedimentation in clean gravels in spawning habitat. Monitoring methods and locations are described.

  1. Allocation Proposal (ERCAP) Application Deadlines

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Application Deadlines Allocation Proposal (ERCAP) Application Deadlines Award Type ERCAP Submission Open ERCAP Submission Deadline Award Decision Allocation Period Startup and Education Ongoing November 10, 2016 Within 3 weeks of applying 18 months from award (but must be renewed for the next allocation year) Production (DOE awarded) for the rest of allocation year (AY) 2016 Ongoing November 10, 2016 Within 4 weeks of applying (pending sufficient DOE reserves of time) through January 9, 2017 All

  2. Towards a Fine-Resolution Global Coupled Climate System for Prediction on

    Office of Scientific and Technical Information (OSTI)

    Decadal/Centennial Scales (Technical Report) | SciTech Connect Towards a Fine-Resolution Global Coupled Climate System for Prediction on Decadal/Centennial Scales Citation Details In-Document Search Title: Towards a Fine-Resolution Global Coupled Climate System for Prediction on Decadal/Centennial Scales The over-arching goal of this project was to contribute to the realization of a fully coupled fine resolution Earth System Model simulation in which a weather-scale atmosphere is coupled to

  3. Method of making polymer powders and whiskers as well as particulate products of the method and atomizing apparatus

    DOE Patents [OSTI]

    Otaigbe, Joshua U.; McAvoy, Jon M.; Anderson, Iver E.; Ting, Jason; Mi, Jia; Terpstra, Robert

    2001-01-09

    Method for making polymer particulates, such as spherical powder and whiskers, by melting a polymer material under conditions to avoid thermal degradation of the polymer material, atomizing the melt using gas jet means in a manner to form atomized droplets, and cooling the droplets to form polymer particulates, which are collected for further processing. Atomization parameters can be controlled to produce polymer particulates with controlled particle shape, particle size, and particle size distribution. For example, atomization parameters can be controlled to produce spherical polymer powders, polymer whiskers, and combinations of spherical powders and whiskers. Atomizing apparatus also is provided for atoomizing polymer and metallic materials.

  4. ALTERNATE HIGH EFFICIENCY PARTICULATE AIR (HEPA) FILTRATION SYSTEM

    SciTech Connect (OSTI)

    Bruce Bishop; Robert Goldsmith; Karsten Nielsen; Phillip Paquette

    2002-08-16

    In Phase IIA of this project, CeraMem has further developed and scaled up ceramic HEPA filters that are appropriate for use on filtration of vent gas from HLW tanks at DOE sites around the country. This work included procuring recrystallized SiC monoliths, developing membrane and cement materials, and defining a manufacturing process for the production of prototype full sizes HEPA filters. CeraMem has demonstrated that prototype full size filters can be manufactured by producing 9 full size filters that passed DOP aerosol testing at the Oak Ridge Filter Test Facility. One of these filters was supplied to the Savannah River Technical Center (SRTC) for process tests using simulated HLW tank waste. SRTC has reported that the filter was regenerable (with some increase in pressure drop) and that the filter retained its HEPA retention capability. CeraMem has also developed a Regenerable HEPA Filter System (RHFS) design and acceptance test plan that was reviewed by DOE personnel. The design and acceptance test plan form the basis of the system proposal for follow-on work in Phase IIB of this project.

  5. III. Waiver of Proposed Rulemaking

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    82 Federal Register / Vol. 77, No. 241 / Friday, December 14, 2012 / Rules and Regulations technical errors in § 447.400(a) and § 447.405 listed on page 66701. One correction ensures consistency between two sentences in the same paragraph and the other restores text inadvertently omitted from the final rule that had been included in the May 11, 2012 notice of proposed rulemaking (77 FR 27671) on pages 26789-90. Thus, we are correcting page 66701 to reflect the correct information. III. Waiver

  6. MODELING OF LONG-TERM FATE OF MOBILIZED FINES DUE TO DAM-EMBANKMENT...

    Office of Scientific and Technical Information (OSTI)

    MODELING OF LONG-TERM FATE OF MOBILIZED FINES DUE TO DAM-EMBANKMENT INTERFACIAL DISLOCATIONS Citation Details In-Document Search Title: MODELING OF LONG-TERM FATE OF MOBILIZED...

  7. Giant Collective Spin-Orbit Field in a Quantum Well: Fine Structure...

    Office of Scientific and Technical Information (OSTI)

    Giant Collective Spin-Orbit Field in a Quantum Well: Fine Structure of Spin Plasmons Citation Details In-Document Search Title: Giant Collective Spin-Orbit Field in a Quantum Well: ...

  8. Cardiopulmonary Toxicity Induced by Ambient Particulate Matter (BI City Concentrated Ambient Particle Study)

    SciTech Connect (OSTI)

    Annette Rohr; James Wagner Masako Morishita; Gerald Keeler; Jack Harkema

    2010-06-30

    Alterations in heart rate variability (HRV) have been reported in rodents exposed to concentrated ambient particles (CAPs) from different regions of the United States. The goal of this study was to compare alterations in cardiac function induced by CAPs in two distinct regional atmospheres. AirCARE 1, a mobile laboratory with an EPA/Harvard fine particle (particulate matter <2.5 {micro}m; PM{sub 2.5}) concentrator was located in urban Detroit, MI, where the PM mixture is heavily influenced by motor vehicles, and in Steubenville, OH, where PM is derived primarily from long-range transport and transformation of power plant emissions, as well as from local industrial operations. Each city was studied during both winter and summer months, for a total of four sampling periods. Spontaneously hypertensive rats instrumented for electrocardiogram (ECG) telemetry were exposed to CAPs 8 h/day for 13 consecutive days during each sampling period. Heart rate (HR), and indices of HRV (standard deviation of the average normal-to-normal intervals [SDNN]; square root of the mean squared difference of successive normal-to-normal intervals [rMSSD]), were calculated for 30-minute intervals during exposures. A large suite of PM components, including nitrate, sulfate, elemental and organic carbon, and trace elements, were monitored in CAPs and ambient air. In addition, a unique sampler, the Semi-Continuous Elements in Air Sampler (SEAS) was employed to obtain every-30-minute measurements of trace elements. Positive matrix factorization (PMF) methods were applied to estimate source contributions to PM{sub 2.5}. Mixed modeling techniques were employed to determine associations between pollutants/CAPs components and HR and HRV metrics. Mean CAPs concentrations in Detroit were 518 and 357 {micro}g/m{sup 3} (summer and winter, respectively) and 487 and 252 {micro}g/m{sup 3} in Steubenville. In Detroit, significant reductions in SDNN were observed in the summer in association with cement/lime, iron/steel, and gasoline/diesel factors, while associations with the sludge incineration factor and components were less consistent. In winter, increases in HR were associated with a refinery factor and its components. CAPs-associated HR decreases in winter were linked to sludge incineration, cement/lime, and coal/secondary factors and the majority of their associated components. Specific relationships for increased rMSSD in winter were difficult to determine due to lack of consistency between factors and associated constituents. In Steubenville, we observed significant changes in HR (both increases and decreases), SDNN, and rMSSD in the summer, but not in the winter. We examined associations between individual source factors/PM components and HRV metrics segregated by predominant wind direction (NE or SW). Changes in HR (both increases and decreases) were linked with metal processing, waste incineration, and iron/steel factors along with most of their associated elemental constituents. Reductions in SDNN were associated with metal processing, waste incineration, and mobile source factors and the majority of elements loading onto these factors. There were no consistent associations between changes in rMSSD and source factors/components. Despite the large number of coal-fired power plants in the region, and therefore the large contribution of secondary sulfate to overall PM mass, we did not observe any associations with the coal/secondary factor or with the majority of its associated components. There were several inconsistencies in our results which make definitive conclusions difficult. For example, we observed opposing signs of effect estimates with some components depending on season, and with others depending on wind direction. In addition, our extensive dataset clearly would be subject to issues of multiple comparisons, and the 'true' significant results are unknown. Overall, however, our results suggest that acute changes in cardiac function were most strongly associated with local industrial sources. Results for coal-fired power plant-derived PM were

  9. Fogging formulations for fixation of particulate contamination in ductwork and enclosures

    DOE Patents [OSTI]

    Maresca, Jr., Joseph W.; Kostelnik, Lori M.; Kriskivich, James R.; Demmer, Rick L.; Tripp, Julia L.

    2015-09-08

    A method and an apparatus using aqueous fixatives for fogging of ventilation ductwork, enclosures, or buildings containing dust, lint, and particulates that may be contaminated by radionuclides and other dangerous or unsafe particulate contaminants, which method and apparatus are capable of (1) obtaining full coverage within the ductwork and (2) penetrating and fixing the lint, dust and large particles present in the ductwork so that no airborne particles are released during or after the application of the fixative. New aqueous fogging solutions outperform conventional glycerin-based solutions. These aqueous solutions will fog using conventional methods of application and contain a surfactant to aid wetting and penetration of the lint and dust, a binder to stabilize loose or respirable particles, and an agent to aid in fogging and enhance adhesiveness. The solutions are safe and easy to use.

  10. Process for the conversion of carbonaceous feedstocks to particulate carbon and methanol

    DOE Patents [OSTI]

    Steinberg, M.; Grohse, E.W.

    1995-06-27

    A process is described for the production of a pollutant-free particulate carbon (i.e., a substantially ash-, sulfur- and nitrogen-free carbon) from carbonaceous feedstocks. The basic process involves de-oxygenating one of the gas streams formed in a cyclic hydropyrolysis-methane pyrolysis process in order to improve conversion of the initial carbonaceous feedstock. De-oxygenation is effected by catalytically converting carbon monoxide, carbon dioxide, and hydrogen contained in one of the pyrolysis gas streams, preferably the latter, to a methanol co-product. There are thus produced two products whose use is known per se, viz., a substantially pollutant-free particulate carbon black and methanol. These products may be admixed in the form of a liquid slurry of carbon black in methanol. 3 figs.

  11. Process for the conversion of carbonaceous feedstocks to particulate carbon and methanol

    DOE Patents [OSTI]

    Steinberg, Meyer (Melville, NY); Grohse, Edward W. (Port Jefferson, NY)

    1995-01-01

    A process for the production of a pollutant-free particulate carbon (i.e., a substantially ash-, sulfur- and nitrogen-free carbon) from carbonaceous feedstocks. The basic process involves de-oxygenating one of the gas streams formed in a cyclic hydropyrolysis-methane pyrolysis process in order to improve conversion of the initial carbonaceous feedstock. De-oxygenation is effected by catalytically converting carbon monoxide, carbon dioxide, and hydrogen contained in one of the pyrolysis gas streams, preferably the latter, to a methanol co-product. There are thus produced two products whose use is known per se, viz., a substantially pollutant-free particulate carbon black and methanol. These products may be admixed in the form of a liquid slurry of carbon black in methanol.

  12. Apparatus and method for removing particulate deposits from high temperature filters

    DOE Patents [OSTI]

    Nakaishi, Curtis V.; Holcombe, Norman T.; Micheli, Paul L.

    1992-01-01

    A combustion of a fuel-air mixture is used to provide a high-temperature and high-pressure pulse of gaseous combustion products for the back-flush cleaning of ceramic filter elements contained in a barrier filter system and utilized to separate particulates from particulate-laden process gases at high temperature and high pressure. The volume of gaseous combustion products provided by the combustion of the fuel-air mixture is preferably divided into a plurality of streams each passing through a sonic orifice and conveyed to the open end of each filter element as a high pressure pulse which passes through the filter elements and dislodges dust cake supported on a surface of the filter element.

  13. Method for removing solid particulate material from within liquid fuel injector assemblies

    DOE Patents [OSTI]

    Simandl, R.F.; Brown, J.D.; Andriulli, J.B.; Strain, P.D.

    1998-09-08

    A method is described for removing residual solid particulate material from the interior of liquid fuel injectors and other fluid flow control mechanisms having or being operatively associated with a flow-regulating fixed or variable orifice. The method comprises the sequential and alternate introduction of columns of a non-compressible liquid phase and columns of a compressed gas phase into the body of a fuel injector whereby the expansion of each column of the gas phase across the orifice accelerates the liquid phase in each trailing column of the liquid phase and thereby generates turbulence in each liquid phase for lifting and entraining the solid particulates for the subsequent removal thereof from the body of the fuel injector. 1 fig.

  14. Method for removing solid particulate material from within liquid fuel injector assemblies

    DOE Patents [OSTI]

    Simandl, Ronald F. (Knoxville, TN); Brown, John D. (Harriman, TN); Andriulli, John B. (Kingston, TN); Strain, Paul D. (Eads, TN)

    1998-01-01

    A method for removing residual solid particulate material from the interior of liquid fuel injectors and other fluid flow control mechanisms having or being operatively associated with a flow-regulating fixed or variable orifice. The method comprises the sequential and alternate introduction of columns of a non-compressible liquid phase and columns of a compressed gas phase into the body of a fuel injector whereby the expansion of each column of the gas phase across the orifice accelerates the liquid phase in each trailing column of the liquid phase and thereby generates turbulence in each liquid phase for lifting and entraining the solid particulates for the subsequent removal thereof from the body of the fuel injector.

  15. Combined method for simultaneously dewatering and reconstituting finely divided carbonaceous material

    DOE Patents [OSTI]

    Wen, Wu-Wey (Murrysville, PA); Deurbrouck, Albert W. (Pittsburgh, PA)

    1990-01-01

    A finely-divided carbonaceous material is dewatered and reconstituted in a combined process by adding a binding agent directly into slurry of finely divided material and dewatering the material to form a cake or consolidated piece which can be hardened by drying at ambient or elevated temperatures. Alternatively, the binder often in the form of a crusting agent is sprayed onto the surface of a moist cake prior to curing.

  16. Development of fine-resolution analyses and expanded large-scale forcing

    Office of Scientific and Technical Information (OSTI)

    properties. Part I: Methodology and evaluation (Journal Article) | SciTech Connect I: Methodology and evaluation Citation Details In-Document Search Title: Development of fine-resolution analyses and expanded large-scale forcing properties. Part I: Methodology and evaluation We produce fine-resolution, three-dimensional fields of meteorological and other variables for the U.S. Department of Energy's Atmospheric Radiation Measurement (ARM) Southern Great Plains site. The Community Gridpoint

  17. Development of fine-resolution analyses and expanded large-scale forcing

    Office of Scientific and Technical Information (OSTI)

    properties. Part II: Scale-awareness and application to single-column model experiments (Journal Article) | SciTech Connect II: Scale-awareness and application to single-column model experiments Citation Details In-Document Search Title: Development of fine-resolution analyses and expanded large-scale forcing properties. Part II: Scale-awareness and application to single-column model experiments Fine-resolution three-dimensional fields have been produced using the Community Gridpoint

  18. Ultra-Fine Grain Foils and Sheets by Large-Strain Extrusion Machining |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Fine Grain Foils and Sheets by Large-Strain Extrusion Machining Ultra-Fine Grain Foils and Sheets by Large-Strain Extrusion Machining 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon lm034_rohatgi_2011_o.pdf More Documents & Publications Vehicle Technologies Office: 2010 Lightweight Materials R&D Annual Progress Report Nanostructured Materials by Machining 2011 Annual Progress Report for

  19. POC-scale testing of an advanced fine coal dewatering equipment/technique. Quarterly technical progress report No. 5, October--December, 1995

    SciTech Connect (OSTI)

    Groppo, J.G.; Parekh, B.K.

    1996-02-01

    Froth flotation technique is an effective and efficient process for recovering of ultra-fine (minus 74{mu}m) clean coal. Economical dewatering of an ultrafine clean coal product to a 20% level moisture will be an important step in successful implementation of the advanced cleaning processes. The main objective of the proposed program is to evaluate a novel surface modification technique, which utilizes the synergistic effect of metal ions-surfactant combination, for dewatering of ultra-fine clean coal on a proof-of-concept scale of 1 to 2 tph. The novel surface modification technique developed at the the University of Kentucky Center for Applied Energy Research will be evaluated using vacuum, centrifuge, and hyperbaric filtration equipment. Dewatering tests will be conducted using the fine clean coal froth produced by the column flotation units at the Powell Mountain Coal Company, Mayflower Preparation Plant in St. Charles, Virginia. The POC-scale studies will be conducted on two different types of clean coal, namely, high sulfur and low sulfur clean coal. Accomplishments for the past quarter are described.

  20. Proposal Submittal and Scheduling Procedures for Macromolecular

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Crystallography | Stanford Synchrotron Radiation Lightsource Proposal Submittal and Scheduling Procedures for Macromolecular Crystallography Beam time for macromolecular crystallography projects is obtained by submitting an SSRL Macromolecular Crystallography Proposal. This proposal is peer reviewed by the Structural Molecular Biology and Biophysics subpanel of the SSRL Proposal Review Panel (PRP) for scientific merit and rating and for criticality of synchrotron radiation use. Proposal

  1. Operating Experience Level 3, Update to Requalification Test Failure of Certain High Efficiency Particulate Air (HEPA) Filters

    Broader source: Energy.gov [DOE]

    Operating Experience Level 3 (OE-3) document provides information regarding the previous requalification test failure and subsequent successful requalification, of certain high efficiency particulate air (HEPA) Filters models manufactured by Flanders Corporation.

  2. Engine gaseous, aerosol precursor and particulate at simulated flight altitude conditions. Technical memo

    SciTech Connect (OSTI)

    Wey, C.C.

    1998-10-01

    The overall objective of the NASA Atmospheric Effects of Aviation Project (AEAP) is to develop scientific bases for assessing atmospheric impacts of the exhaust emissions by both current and future fleets of subsonic and supersonic aircraft. Among the six primary elements of the AEAP is Emissions Characterization. The objective of the Emission Characterization effort is to determine the exhaust emission constituents and concentrations at the engine exit plane. The specific objective of this engine test is to obtain a database of gaseous and particulate emissions as a function of fuel sulfur and engine operating conditions. The database of the particulate emission properties is to be used as a comparative baseline with subsequent flight measurement. The engine used in this test was a Pratt and Whitney F100-200E turbofan engine. Aviation fuel (Jet A) with a range of fuel sulfur was used. Low and high sulfur values are limited by commercially available fuels and by fuel specification limits of 0.3% by weight. Test matrix was set by parametrically varying the combustor inlet temperature (T3) between idle and maximum power setting at simulated SLS and up to five other altitudes for each fuel. Four diagnostic systems, extractive and non-intrusive, were assembled for the gaseous and particulate emissions characterization measurements study. NASA extractive system includes smoke meter and analyzers for measurement of CO, CO{sub 2}, NO, NOx, O{sub 2}, total unburnt hydrocarbons (THC), and SO{sub 2}. Particulate emissions were characterized by University of Missouri-Rolla Mobile Aerosol Sampling System.

  3. Diesel Particulate Filter Technology for Low-Temperature and Low-NOx/PM

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Applications | Department of Energy Filter Technology for Low-Temperature and Low-NOx/PM Applications Diesel Particulate Filter Technology for Low-Temperature and Low-NOx/PM Applications 2004 DEER Conference Presentation: Johnson-Matthey Catalysts PDF icon 2004_deer_chatterjee.pdf More Documents & Publications Performance of Johnson Matthey EGRT’ Emission Control System for NOx and PM Emission Reduction in Retrofit Applications Part 1 Aftertreatment Modeling Status, Futur Potential, and

  4. Development of Optical Technologies for Monitoring Moisture and Particulate in Geothermal Steam

    SciTech Connect (OSTI)

    J. K. Partin

    2006-08-01

    The results of an investigation directed at evaluating the feasibility of using optical measurements for the real-time monitoring moisture and particulate in geothermal steam is described. The measurements exploit new technologies that have been developed for the telecommunications industry and includes new solid state laser devices, large-bandwidth, high-sensitivity detectors and low loss optical fiber compo-nents. In particular, the design, fabrication, and in-plant testing of an optical steam monitor for the detection of moisture is presented. The measurement principle is based upon the selective absorption of infrared energy in response to the presence of moisture. Typically, two wavelengths are used in the measurements: a wavelength that is strongly absorbed by water and a reference wavelength that is minimally influenced by water and steam which serves as a reference to correct for particulate or droplet scattering. The two wavelengths are chosen to be as close as possible in order to more effectively correct for scattering effects. The basic instrumentation platform developed for the in-situ monitoring of steam moisture can be modified and used to perform other measurements of interest to plant operators. An upgrade that will allow the instrument to be used for the sensitive detection of particulate in process streams has been investigated. The new monitor design involves the use of laser diodes that are much less sensitive to water and water vapor and more sensitive to scattering phenomena, as well as new processing techniques to recover these signals. The design reduces the averaging time and sampling volume, while increasing the laser probe power, enhancing particulate detection sensitivity. The design concept and initial laboratory experiments with this system are also reported.

  5. POC-scale testing of an advanced fine coal dewatering equipment/technique

    SciTech Connect (OSTI)

    Groppo, J.G.; Parekh, B.K.; Rawls, P.

    1995-11-01

    Froth flotation technique is an effective and efficient process for recovering of ultra-fine (minus 74 {mu}m) clean coal. Economical dewatering of an ultra-fine clean coal product to a 20 percent level moisture will be an important step in successful implementation of the advanced cleaning processes. This project is a step in the Department of Energy`s program to show that ultra-clean coal could be effectively dewatered to 20 percent or lower moisture using either conventional or advanced dewatering techniques. As the contract title suggests, the main focus of the program is on proof-of-concept testing of a dewatering technique for a fine clean coal product. The coal industry is reluctant to use the advanced fine coal recovery technology due to the non-availability of an economical dewatering process. in fact, in a recent survey conducted by U.S. DOE and Battelle, dewatering of fine clean coal was identified as the number one priority for the coal industry. This project will attempt to demonstrate an efficient and economic fine clean coal slurry dewatering process.

  6. Light absorption from particulate impurities in snow and ice determined by spectrophotometric analysis of filters

    SciTech Connect (OSTI)

    Grenfell, Thomas C.; Doherty, Sarah J.; Clarke, Antony D.; Warren, Stephen G.

    2011-05-10

    Light absorption by particulate impurities in snow and ice can affect the surface albedo and is important for the climate. The absorption properties of these particles can be determined by collecting and melting snow samples and extracting the particulate material by filtration of the meltwater. This paper describes the optical design and testing of a new instrument to measure the absorption spectrum from 400 to 750 nm wavelength of the particles collected on filters using an ''integrating-sandwich'' configuration. The measured absorption is shown to be unaffected by scattering of light from the deposited particulates. A set of calibration standards is used to derive an upper limit for the concentration of black carbon (BC) in the snow. The wavelength dependence of the absorption spectra from 450 to 600 nm is used to calculate an absorption Angstrom exponent for the aerosol. This exponent is used to estimate the actual BC concentration in the snow samples as well as the relative contributions of BC and non-BC constituents to the absorption of solar radiation integrated over the wavelength band 300 to 750 nm.

  7. NSR&D Call for Proposals 2016

    Broader source: Energy.gov [DOE]

    The Call for Proposals memorandum represents the official 2016 Call for Proposals for the Department of Energy (DOE) Nuclear Safety Research and Development (NSR&D) Program.

  8. LOPP Proposal Checklist | Open Energy Information

    Open Energy Info (EERE)

    of specific proposal requirements for lease of power privilege proposals. Author Bureau of Reclamation Published Department of Interior, 2015 DOI Not Provided Check for DOI...

  9. Particulate Matter Sampling and Volatile Organic Compound Removal for Characterization of Spark Ignited Direct Injection Engine Emissions

    SciTech Connect (OSTI)

    Matthias, Nick; Farron, Carrie; Foster, David E.; Andrie, Mike; Krieger, Roger; Najt, Paul; Narayanaswamy, Kushal; Solomon, Arun; Zelenyuk, Alla

    2012-01-01

    More stringent emissions regulations are continually being proposed to mitigate adverse human health and environmental impacts of internal combustion. With that in mind, it has been proposed that vehicular particulate matter (PM) emissions should be regulated based on particle number in addition to particle mass. One aspect of this project is to study different sample handling methods for number based aerosol measurements, specifically, two different methods for removing volatile organic compounds (VOCs) from an aerosol sample. One method is a Dekati Thermodenuder (TD) and the other is an evaporative chamber/diluter (EvCh). These sample handling methods have been implemented for this project in an engine test cell built around a direct injection spark ignited (DISI) engine. The engine was designed for stoichiometric, homogeneous combustion. Direct injection is of particular interest for improved fuel efficiency but this comes with the production of a significant amount of (PM) and may therefore be subject to the proposed number based regulation. Another aspect of this project is to characterize PM from this engine in terms of particle number and composition. The first interesting observation is that PM number distributions, acquired using a TSI SMPS, have a large accumulation mode (30-294 nm) but a very small nuclei mode (8-30 nm). This is understood to represent a lack of condensation particles meaning that neither the exhaust conditions nor the sample handling conditions are conducive to condensation. This lack of nuclei mode does not, however, represent a lack of VOCs in the sample. It has been observed, using mass spectral analysis (limited to PM>50 nm), that PM from the DISI engine has approximately 40% organic content through varying operating conditions. This begs the question of how effective different sample handling methods are at removing these VOCs. For one specific operating condition, called Cold Start, the un-treated PM was 40% organic. The TD reduced this by 7% while the EvCh reduced it by 13%. For other operating conditions, PM treated for volatile removal actually exhibited an increase in organic fraction on the order of 5%. This addition appears to be sensitive to the gaseous hydrocarbon concentrations in the exhaust although a precise correlation has not yet been derived. It has been concluded that VOCs are tightly bound to the PM carbon core and thus are not effectively removed by either treatment method.

  10. POC-SCALE TESTING OF OIL AGGLOMERATION TECHNIQUES AND EQUIPMENT FOR FINE COAL PROCESSING

    SciTech Connect (OSTI)

    1998-01-01

    This report covers the technical progress achieved from October 1, 1997 to December 31, 1997 on the POC-Scale Testing of Oil Agglomeration Techniques and Equipment for Fine Coal Processing project. Experimental test procedures and the results related to the processing of coal fines originating from process streams generated at the Shoal Creek Mine preparation plant, owned and operated by the Drummond Company Inc. of Alabama, are described. Two samples of coal fines, namely Cyclone Overflow and Pond Fines were investigated. The batch test results showed that by applying the Aglofloat technology a significant ash removal might be achieved at a very high combustible matter recovery: · for the Cyclone Overflow sample the ash reduction was in the range 50 to 55% at combustible matter recovery about 98% · for the Pond Fines sample the ash reduction was up to 48% at combustible matter recovery up to 85%. Additional tests were carried out with the Alberta origin Luscar Mine coal, which will be used for the parametric studies of agglomeration equipment at the 250 kg/h pilot plant. The Luscar coal is very similar to the Mary Lee Coal Group (processed at Shoal Creek Mine preparation plant) in terms of rank and chemical composition.

  11. Localized electrical fine tuning of passive microwave and radio frequency devices

    DOE Patents [OSTI]

    Findikoglu, Alp T. (Los Alamos, NM)

    2001-04-10

    A method and apparatus for the localized electrical fine tuning of passive multiple element microwave or RF devices in which a nonlinear dielectric material is deposited onto predetermined areas of a substrate containing the device. An appropriate electrically conductive material is deposited over predetermined areas of the nonlinear dielectric and the signal line of the device for providing electrical contact with the nonlinear dielectric. Individual, adjustable bias voltages are applied to the electrically conductive material allowing localized electrical fine tuning of the devices. The method of the present invention can be applied to manufactured devices, or can be incorporated into the design of the devices so that it is applied at the time the devices are manufactured. The invention can be configured to provide localized fine tuning for devices including but not limited to coplanar waveguides, slotline devices, stripline devices, and microstrip devices.

  12. Acute changes in pulse pressure in relation to constituents of particulate air pollution in elderly persons

    SciTech Connect (OSTI)

    Jacobs, Lotte; Buczynska, Anna; Walgraeve, Christophe; Delcloo, Andy; Potgieter-Vermaak, Sanja; Molecular Science Institute, School of Chemistry, University of Witwatersrand, Johannesburg; Division of Chemistry and Environmental Science, Manchester Metropolitan University, Manchester ; Van Grieken, Rene; Demeestere, Kristof; Dewulf, Jo; Van Langenhove, Herman; De Backer, Hugo; Nemery, Benoit; Nawrot, Tim S.; Centre for Environmental Sciences, Hasselt University, Diepenbeek

    2012-08-15

    An increased pulse pressure (difference between systolic and diastolic blood pressure) suggests aortic stiffening. The objective of this study was to examine the acute effects of both particulate matter (PM) mass and composition on blood pressure, among elderly persons. We carried out a panel study in persons living in elderly homes in Antwerp, Belgium. We recruited 88 non-smoking persons, 70% women with a mean age of 83 years (standard deviation: 5.2). Blood pressure was measured and a blood sample was collected on two time points, which were chosen so that there was an exposure contrast in ambient PM exposure. The elemental content of the collected indoor and outdoor PM{sub 2.5} (particulate matter with an aerodynamic diameter <2.5 {mu}m) mass concentration was measured. Oxygenated polycyclic aromatic hydrocarbons (oxy-PAHs) on outdoor PM{sub 10} (particulate matter with an aerodynamic diameter <10 {mu}m) were measured. Each interquartile range increase of 20.8 {mu}g/m Superscript-Three in 24-h mean outdoor PM{sub 2.5} was associated with an increase in pulse pressure of 4.0 mmHg (95% confidence interval: 1.8-6.2), in persons taking antihypertensive medication (n=57), but not in persons not using antihypertensive medication (n=31) (p for interaction: 0.02). Vanadium, iron and nickel contents of PM{sub 2.5} were significantly associated with systolic blood pressure and pulse pressure, among persons on antihypertensive medication. Similar results were found for indoor concentrations. Of the oxy-PAHs, chrysene-5,6-dione and benzo[a]pyrene-3,6-dione were significantly associated with increases in systolic blood pressure and pulse pressure. In elderly, pulse pressure was positively associated with acute increases in outdoor and indoor air pollution, among persons taking antihypertensive medication. These results might form a mechanistic pathway linking air pollution as a trigger of cardiovascular events.

  13. Particulate emissions from residential wood combustion: Final report: Norteast regional Biomass Program

    SciTech Connect (OSTI)

    Not Available

    1987-01-01

    The objective of this study was to provide a resource document for the Northeastern states when pursuing the analysis of localized problems resulting from residential wood combustion. Specific tasks performed include assigning emission rates for total suspended particulates (TSP) and benzo(a)pyrene (BaP) from wood burning stoves, estimating the impact on ambient air quality from residential wood combustion and elucidating the policy options available to Northeastern states in their effort to limit any detrimental effects resulting from residential wood combustion. Ancillary tasks included providing a comprehensive review on the relevant health effects, indoor air pollution and toxic air pollutant studies. 77 refs., 11 figs., 25 tabs.

  14. Solid Phase Characterization of Tank 241-AY-102 Annulus Space Particulate

    SciTech Connect (OSTI)

    Cooke, G. A.

    2013-01-30

    The Special Analytical Studies Group at the 222-S Laboratory (222-S) examined the particulate recovered from a series of samples from the annular space of tank 241-AY-102 (AY-102) using solid phase characterization (SPC) methods. These include scanning electron microscopy (SEM) using the ASPEX?1 scanning electron microscope, X-ray diffraction (XRD) using the Rigaku?2 MiniFlex X-ray diffractometer, and polarized light microscopy (PLM) using the Nikon?3 Eclipse Pol optical microscope. The SEM is equipped with an energy dispersive X-ray spectrometer (EDS) to provide chemical information.

  15. Electrically resistive coating for remediation (regeneration) of a diesel particulate filter and method

    DOE Patents [OSTI]

    Phelps, Amanda C.; Kirby, Kevin K.; Gregoire, Daniel J.

    2012-02-14

    A resistively heated diesel particulate filter (DPF). The resistively heated DPF includes a DPF having an inlet surface and at least one resistive coating on the inlet surface. The at least one resistive coating is configured to substantially maintain its resistance in an operating range of the DPF. The at least one resistive coating has a first terminal and a second terminal for applying electrical power to resistively heat up the at least one resistive coating in order to increase the temperature of the DPF to a regeneration temperature. The at least one resistive coating includes metal and semiconductor constituents.

  16. Total Particulate Matter Air Sampling Data (TEOM) from Los Alamos National Laboratory

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    LANL measures the total particulate mass concentration in the air on a routine basis as well as during incidents that may affect ambient air. The collected data is added to the Air Quality Index (AQI). AQI is an index for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. The AQI focuses on health effects you may experience within a few hours or days after breathing polluted air. EPA calculates the AQI for five major air pollutants regulated by the Clean Air Act.

  17. Particulate Formation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Applications National Solar Thermal Test Facility ... Hydrogen Production Market Transformation Fuel Cells Predictive Simulation of Engines Transportation Energy Consortiums ...

  18. Particulate Formation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Formation - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear Energy

  19. Giant Collective Spin-Orbit Field in a Quantum Well: Fine Structure of Spin

    Office of Scientific and Technical Information (OSTI)

    Plasmons (Journal Article) | SciTech Connect Giant Collective Spin-Orbit Field in a Quantum Well: Fine Structure of Spin Plasmons Citation Details In-Document Search Title: Giant Collective Spin-Orbit Field in a Quantum Well: Fine Structure of Spin Plasmons Authors: Baboux, F. ; Perez, F. ; Ullrich, C. A. ; D'Amico, I. ; Gómez, J. ; Bernard, M. Publication Date: 2012-10-15 OSTI Identifier: 1101593 Type: Publisher's Accepted Manuscript Journal Name: Physical Review Letters Additional Journal

  20. MODELING OF LONG-TERM FATE OF MOBILIZED FINES DUE TO DAM-EMBANKMENT

    Office of Scientific and Technical Information (OSTI)

    INTERFACIAL DISLOCATIONS (Conference) | SciTech Connect MODELING OF LONG-TERM FATE OF MOBILIZED FINES DUE TO DAM-EMBANKMENT INTERFACIAL DISLOCATIONS Citation Details In-Document Search Title: MODELING OF LONG-TERM FATE OF MOBILIZED FINES DUE TO DAM-EMBANKMENT INTERFACIAL DISLOCATIONS Authors: Ezzedine, S ; Kanarska, Y ; Lomov, I ; Antoun, T ; Glascoe, L Publication Date: 2011-07-29 OSTI Identifier: 1093897 Report Number(s): LLNL-PROC-491853 DOE Contract Number: W-7405-ENG-48 Resource Type:

  1. Fnr (EtrA) acts as a fine-tuning regulator of anaerobic metabolism in

    Office of Scientific and Technical Information (OSTI)

    Shewanella oneidensis MR-1 (Journal Article) | SciTech Connect Journal Article: Fnr (EtrA) acts as a fine-tuning regulator of anaerobic metabolism in Shewanella oneidensis MR-1 Citation Details In-Document Search Title: Fnr (EtrA) acts as a fine-tuning regulator of anaerobic metabolism in Shewanella oneidensis MR-1 EtrA in Shewanella oneidensis MR-1, a model organism for study of adaptation to varied redox niches, shares 73.6% and 50.8% amino acid sequence identity with the oxygen-sensing

  2. A Prototype Two-Decade Fully-Coupled Fine-Resolution CCSM Simulation

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect Journal Article: A Prototype Two-Decade Fully-Coupled Fine-Resolution CCSM Simulation Citation Details In-Document Search Title: A Prototype Two-Decade Fully-Coupled Fine-Resolution CCSM Simulation A fully coupled global simulation using the Community Climate System Model (CCSM) was configured using grid resolutions of 0.1{sup o} for the ocean and sea-ice, and 0.25{sup o} for the atmosphere and land, and was run under present-day greenhouse gas conditions

  3. POC-Scale Testing of an Advanced Fine Coal Dewatering Equipment/Technique

    SciTech Connect (OSTI)

    B. K. Karekh; D. Tao; J. G. Groppo

    1998-08-28

    Froth flotation technique is an effective and efficient process for recovering of ultra-fine (minus 74 mm) clean coal. Economical dewatering of an ultra-fine clean coal product to a 20% level moisture will be an important step in successful implementation of the advanced cleaning processes. This project is a step in the Department of Energy's program to show that ultra-clean coal could be effectively dewatered to 20% or lower moisture using either conventional or advanced dewatering techniques. The cost-sharing contract effort is for 45 months beginning September 30, 1994. This report discusses technical progress made during the quarter from January 1 ? March 31, 1998.

  4. DOE Receives First Repayment from Successful DryFining™ Clean Coal Power

    Office of Environmental Management (EM)

    Initiative Project | Department of Energy First Repayment from Successful DryFining™ Clean Coal Power Initiative Project DOE Receives First Repayment from Successful DryFining™ Clean Coal Power Initiative Project July 6, 2011 - 1:00pm Addthis Washington, DC - The success of a U.S. Department of Energy (DOE) Clean Coal Power Initiative (CCPI) project has led to a repayment of $580,000 to U.S. taxpayers, with much more - potentially exceeding $13 million - possible in the future. Great River

  5. Call for General User Proposals - Upcoming Deadline

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Call for General User Proposals - Upcoming Deadline Call for General User Proposals - Upcoming Deadline Print The User Office is accepting new General User Proposals (GUPs) from scientists who wish to conduct research at the ALS in the 2016-2 July-Dec cycle. PROPOSAL SUBMISSION DEADLINE: March 2, 2016 Please log in to ALSHub to submit a new GUP or to make a Beam Time Request (BTR) on an existing active proposal. Users are reminded that they need to have an ALSHub account to submit proposals, and

  6. Proposal Form Guidelines | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Form Guidelines Please read the Proposal Form Description and Guidelines entirely before submitting a proposal (pdf version). You must register online through the User Facility Registration System BEFORE submitting a proposal. All individuals coming to Argonne must register, receive a badge number, and receive access permission for arrival. You will receive a badge number by e-mail. To log on to the Online User Proposal System for the first time, enter your badge number and also use your badge

  7. Proposal Process in Brief | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Process in Brief The international scientific community can perform research at the CNM through a general user access program. Proposals are submitted through a online proposal system. Proposals are peer-reviewed, rated, and time is allocated on the basis of these reviews by appropriate allocation committees. How to Submit a Proposal You must register online through the User Facility Registration System. Study the CNM Research Groups and identify the capabilities you plan to use. Consult the

  8. Proposal Writing Guidelines and Scoring Criteria

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposal Writing Guidelines and Scoring Criteria Print Principal Investigator The proposal form asks for the names and contact information of the experiment leader completing the form and the Principal Investigator (PI). The PI is the leader and the individual responsible for the group, and the experiment leader is often the person completing the proposal form. In this way the ALS would like to encourage postdocs and students to gain experience in submitting proposals as the experiment leader,

  9. 2013 INCITE Proposals due June 27

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    INCITE Proposals 2013 INCITE Proposals due June 27 June 15, 2012 by Francesca Verdier The Innovative and Novel Computational Impact on Theory and Experiment (INCITE) program promotes transformational advances in science and technology through large allocations of computer time, supporting resources, and data storage at the Argonne and Oak Ridge Leadership Computing Facilities. 2013 proposals are due June 27. See 2013 INCITE Call for Proposals. Subscribe via RSS Subscribe Browse by Date January

  10. 30-Day Federal Register Notice - Proposed

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Revised 11-2009 30-Day Federal Register Notice - Proposed [6450-01-P] DEPARTMENT OF ENERGY Proposed Agency Information Collection AGENCY: U.S. Department of Energy. ACTION: Notice and Request for OMB Review and Comment SUMMARY: The Department of Energy (DOE) has submitted to the Office of Management and Budget (OMB) for clearance, a proposal for collection of information under the provisions of the Paperwork Reduction Act of 1995. The proposed collection will {enter a brief description of the

  11. Return on investment (ROI) proposal preparation guide

    SciTech Connect (OSTI)

    VALERO, O.J.

    1998-10-09

    The ROI Proposal Preparation Guide is a tool to assist Hanford waste generators in preparing ROI proposal forms for submittal to Department of Energy, Richland Operations Office (DOE/RL) for funding. The guide describes the requirements for submitting an ROI proposal and provides examples of completed ROI forms. The intent is to assist waste generators in identifying projects that meet the criteria, provide information necessary to complete the ROI forms, and submit a proposal that is eligible to receive funding.

  12. Evaluation and Selection of CSES Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Evaluating, Selecting Proposals Evaluation and Selection of CSES Proposals High quality, cutting-edge science in the areas of astrophysics, space physics, solid planetary geoscience, and climate science. Contact Director Reiner Friedel (505) 665-1936 Email Professional Staff Assistant Georgia D. Sanchez (505) 665-0855 Email Geophysics W. Scott Baldridge (505) 667-4338 Email New student and postdoc proposals All new proposals undergo peer review by scientists in the broad research community who

  13. DOE Proposes Higher Efficiency Standards for Refrigerators

    Broader source: Energy.gov [DOE]

    New Proposed Standards for Residential Refrigerators and Freezers to Lower Energy Use by as much as Twenty-Five Percent

  14. Proposed Tri-Party Agreement Modifications

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposed Tri-Party Agreement Modifications for Initial Single Shell Tank Waste Management Area Corrective Actions, Vadose Zone and Groundwater...

  15. 30-Day Federal Register Notice - Proposed

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    30-Day Federal Register Notice - Proposed [6450-01-P] DEPARTMENT OF ENERGY Proposed Agency Information Collection AGENCY: U.S. Department of Energy. ACTION: Notice and Request for OMB Review and Comment SUMMARY: The Department of Energy (DOE) has submitted to the Office of Management and Budget (OMB) for clearance, a proposal for collection of information under the provisions of the Paperwork Reduction Act of 1995. The proposed collection will {enter a brief description of the collection that

  16. 60-DAY Federal Register Notice - Proposed

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Proposed [6450-01-P] DEPARTMENT OF ENERGY Proposed Agency Information Collection AGENCY: U.S. Department of Energy ACTION: Notice and Request for Comments SUMMARY: The Department of Energy (DOE) invites public comment on a proposed collection of information that DOE is developing for submission to the Office of Management and Budget (OMB) pursuant to the Paperwork Reduction Act of 1995. Comments are invited on: (a) whether the proposed collection of information is necessary for the proper

  17. Loading and Regeneration Analysis of a Diesel Particulate Filter with a Radio Frequency-Based Sensor

    SciTech Connect (OSTI)

    Sappok, Alex; Prikhodko, Vitaly Y; Parks, II, James E

    2010-01-01

    Accurate knowledge of diesel particulate filter (DPF) loading is critical for robust and efficient operation of the combined engine-exhaust aftertreatment system. Furthermore, upcoming on-board diagnostics regulations require on-board technologies to evaluate the status of the DPF. This work describes the application of radio frequency (RF) based sensing techniques to accurately measure DPF soot levels and the spatial distribution of the accumulated material. A 1.9L GM turbo diesel engine and a DPF with an RF-sensor were studied. Direct comparisons between the RF measurement and conventional pressure-based methods were made. Further analysis of the particulate matter loading rates was obtained with a mass-based soot emission measurement instrument (TEOM). Comparison with pressure drop measurements show the RF technique is unaffected by exhaust flow variations and exhibits a high degree of sensitivity to DPF soot loading and good dynamic response. Additional computational and experimental work further illustrates the spatial resolution of the RF measurements. Based on the experimental results, the RF technique shows significant promise for improving DPF control enabling optimization of the combined engine-aftertreatment system for improved fuel economy and extended DPF service life.

  18. Implications of Low Particulate Matter Emissions on System Fuel Efficiency for High Efficiency Clean Combustion

    SciTech Connect (OSTI)

    Parks, II, James E; Prikhodko, Vitaly Y

    2009-01-01

    Advanced diesel combustion regimes such as High Efficiency Clean Combustion (HECC) offer the benefits of reduced engine out NOX and particulate matter (PM) emissions. Lower PM emissions during advanced combustion reduce the demand on diesel particulate filters (DPFs) and can, thereby, reduce the fuel penalty associated with DPF regeneration. In this study, a SiC DPF was loaded and regenerated on a 1.7-liter 4-cylinder diesel engine operated in conventional and advanced combustion modes at different speed and load conditions. A diesel oxidation catalyst (DOC) and a lean NOX trap (LNT) were also installed in the exhaust stream. Five steady-state speed and load conditions were weighted to estimate Federal Test Procedure (FTP) fuel efficiency. The DPF was loaded using lean-rich cycling with frequencies that resulted in similar levels of NOX emissions downstream of the LNT. The pressure drop across the DPF was measured at a standard point (1500 rpm, 5.0 bar) before and after loading, and a P rise rate was determined for comparison between conventional and advanced combustion modes. Higher PM emissions in conventional combustion resulted in a higher rate of backpressure rise across the DPF at all of the load points leading to more frequent DPF regenerations and higher fuel penalty. The fuel penalty during conventional combustion was 4.2% compared with 3.1% for a mixture of conventional and advanced modes.

  19. Microsoft Word - ProjectProposalForm.dotx

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Proposal Form Center for Advanced Microstructures and Devices, Louisiana State University, 6980 Jefferson Hwy., Baton Rouge, LA 70806 1. Project Title: __________________________________________________________________________________________ Anticipated Completion Date:__________________ 2. Type of Proposal: ___ New Project ___ Renewal 3. Type of Project: ___ Single Experiment: 4 eight-hour shifts maximum. ___ Program (These proposals will be referred.) 4. P.I.:

  20. Research Proposal Milestones | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Proposal Milestones Research Proposal Milestones Research Proposal Milestones, from the U.S. Department of Energy's Postdoctoral Research Awards program. Office spreadsheet icon template_for_milestones.xls More Documents & Publications Template for Milestones ESPC ENABLE ACQUISITION PLAN TEMPLATE Dynamically Responsive Infrared Window Coatings

  1. Production of a pellet fuel from Illinois coal fines. Technical report, September 1--November 30, 1994

    SciTech Connect (OSTI)

    Rapp, D.; Lytle, J.; Berger, R.

    1994-12-31

    The primary goal of this research is to produce a pellet fuel from low-sulfur Illinois coal fines which could burn with emissions of less than 1.8 lbs SO{sub 2}/10{sup 6} Btu in stoker-fired boilers. The significance of 1.8 lbs SO{sub 2}/10{sup 6} Btu is that in the Chicago (9 counties) and St. Louis (2 counties) metropolitan areas, industrial users of coal currently must comply with this level of emissions. Stokers are an attractive market for pellets because pellets are well-suited for this application and because western coal is not a competitor in the stoker market. Compliance stoker fuels come from locations such as Kentucky and West Virginia and the price for fuels from these locations is high relative to the current price of Illinois coal. This market offers the most attractive near-term economic environment for commercialization of pelletization technology. For this effort, the authors will be investigating the use of fines from two Illinois mines which currently mine relatively low-sulfur reserves and that discard their fines fraction (minus 100 mesh). The research will involve investigation of multiple unit operations including column flotation, filtration and pellet production. The end result of the effort will allow for an evaluation of the commercial viability of the approach. This quarter pellet production work commenced and planning for collection and processing of a preparation plant fines fraction is underway.

  2. Proof of concept and performance optimization of high gravity batch type centrifuge for dewatering fine coal

    SciTech Connect (OSTI)

    Smith, L.B.; Durney, T.E. Jr.

    1991-04-23

    Coal Technology Corporation (CTC) believes that the new CTC high gravity, high production, batch type centrifugal dryer technology can play a significant role in improving the product quality as well as costs of operation in coal processing plants. It is further believed that the new centrifugal dryer technology can form an important part in systems used to clean up millions of tons of coal fines in refuse piles and ponds. It is anticipated that the new centrifuge can become an important ancillary to the advanced deep cleaning processes for coal. Because of these convictions, CTC has been engaged in a pioneering research effort into the new art of drying fine clean coal in high gravity, high production, batch type of centrifuge, since 1981. This work has progressed to the point where the new centrifugal dryer technology is nearly ready for commercialization. It promises to provide needed fine coal drying capability at somewhat lower capital costs and at substantially lower operating costs than competitive systems. It also promises to do so with no detrimental effects on either the coal quality or the environment. The primary objective of this project is to prove the concept of a high gravity batch centrifuge for drying coal fines in a commercial coal processing plant environment. The proof of concept tests also include testing with a variety of coals from different regions. A further objective is to optimize the efficiency and the cost effectiveness of the new centrifugal dryer technology. 2 figs., 3 tabs.

  3. Multi-gravity separator: an alternate gravity concentrator to process coal fines

    SciTech Connect (OSTI)

    Majumder, A.K.; Bhoi, K.S.; Barnwal, J.P.

    2007-08-15

    The multi-gravity separator (MGS) is a novel piece of equipment for the separation of fine and ultra-fine minerals. However, the published literature does not demonstrate its use in the separation of coal fines. Therefore, an attempt was made to study the effects of different process variables on the performance of an MGS for the beneficiation of coal fines. The results obtained from this study revealed that among the parameters studied, drum rotation and feed solids concentration play dominating roles in controlling the yield and ash content of the clean coal. Mathematical modeling equations that correlate the variables studied and the yield and ash contents of the clean coal were developed to predict the performance of an MGS under different operating and design conditions. The entire exercise revealed that the MGS could produce a clean coal with an ash content of 14.67% and a yield of 71.23% from a feed coal having an ash content of 24.61 %.

  4. Considerations for modeling small-particulate impacts from surface coal-mining operations based on wind-tunnel simulations

    SciTech Connect (OSTI)

    Perry, S.G.; Petersen, W.B.; Thompson, R.S.

    1994-12-31

    The Clean Air Act Amendments of 1990 provide for a reexamination of the current Environmental Protection Agency`s (USEPA) methods for modeling fugitive particulate (PM10) from open-pit, surface coal mines. The Industrial Source Complex Model (ISCST2) is specifically named as the method that needs further study. Title II, Part B, Section 234 of the Amendments states that {open_quotes}...the Administrator shall analyze the accuracy of such model and emission factors and make revisions as may be necessary to eliminate any significant over-predictions of air quality effect of fugitive particulate emissions from such sources.{close_quotes}

  5. Assessment of Contribution of Contemporary Carbon Sources to Size-Fractionated Particulate Matter and Time-Resolved Bulk Particulate Matter Using the Measurement of Radiocarbon

    SciTech Connect (OSTI)

    Hwang, H M; Young, T M; Buchholz, B A

    2009-04-16

    This study was motivated by a desire to improve understanding of the sources contributing to the carbon that is an important component of airborne particulate matter (PM). The ultimate goal of this project was to lay a ground work for future tools that might be easily implemented with archived or routinely collected samples. A key feature of this study was application of radiocarbon measurement that can be interpreted to indicate the relative contributions from fossil and non-fossil carbon sources of atmospheric PM. Size-resolved PM and time-resolved PM{sub 10} collected from a site in Sacramento, CA in November 2007 (Phase I) and March 2008 (Phase II) were analyzed for radiocarbon and source markers such as levoglucosan, cholesterol, and elemental carbon. Radiocarbon data indicates that the contributions of non-fossil carbon sources were much greater than that from fossil carbon sources in all samples. Radiocarbon and source marker measurements confirm that a greater contribution of non-fossil carbon sources in Phase I samples was highly likely due to residential wood combustion. The present study proves that measurement of radiocarbon and source markers can be readily applied to archived or routinely collected samples for better characterization of PM sources. More accurate source apportionment will support ARB in developing more efficient control strategies.

  6. Results of Self-Absorption Study on the Versapor 3000 Filters for Radioactive Particulate Air Sampling

    SciTech Connect (OSTI)

    Barnett, J. M.; Cullinan, Valerie I.; Barnett, Debra S.; Trang-Le, Truc LT; Bliss, Mary; Greenwood, Lawrence R.; Ballinger, Marcel Y.

    2009-02-17

    Since the mid-1980s, Pacific Northwest National Laboratory (PNNL) has used a value of 0.85 as the correction factor for self absorption of activity for particulate radioactive air samples collected from building exhaust for environmental monitoring. This value accounts for activity that cannot be detected by direct counting of alpha and beta particles. Emissions can be degraded or blocked by filter fibers for particles buried in the filter material or by inactive dust particles collected with the radioactive particles. These filters are used for monitoring air emissions from PNNL stacks for radioactive particles. This paper describes an effort to re-evaluate self-absorption effects in particulate radioactive air sample filters (Versapor 3000, 47 mm diameter) used at PNNL. There were two methods used to characterize the samples. Sixty samples were selected from the archive for acid digestion to compare the radioactivity measured by direct gas-flow proportional counting of filters to the results obtained after acid digestion of the filter and counting again by gas-flow proportional detection. Thirty different sample filters were selected for visible light microscopy to evaluate filter loading and particulate characteristics. Mass-loading effects were also considered. Filter ratios were calculated by dividing the initial counts by the post-digestion counts with the expectation that post-digestion counts would be higher because digestion would expose radioactivity embedded in the filter in addition to that on top of the filter. Contrary to expectations, the post digestion readings were almost always lower than initial readings and averaged approximately half the initial readings for both alpha and beta activity. Before and after digestion readings appeared to be related to each other, but with a low coefficient of determination (R^2) value. The ratios had a wide range of values indicating that this method did not provide sufficient precision to quantify self-absorption effects. The microscopy analysis compares different filter loadings and shows that smaller particle sizes (under 10 micron) can readily be seen on the more lightly loaded filters. At higher loadings, however, the particle size is harder to differentiate. This study provides data on actual stack emission samples showing a range of mass loading conditions and visual evidence of particle size and distribution and also presents the difficulties in quantifying self-absorption effects using actual samples.

  7. SIZE DISTRIBUTION AND RATE OF PRODUCTION OF AIRBORNE PARTICULATE MATTER GENERATED DURING METAL CUTTING

    SciTech Connect (OSTI)

    M.A. Ebadian, Ph.D.; S.K. Dua, Ph.D., C.H.P.; Hillol Guha, Ph.D.

    2001-01-01

    During deactivation and decommissioning activities, thermal cutting tools, such as plasma torch, laser, and gasoline torch, are used to cut metals. These activities generate fumes, smoke and particulates. These airborne species of matter, called aerosols, may be inhaled if suitable respiratory protection is not used. Inhalation of the airborne metallic aerosols has been reported to cause ill health effects, such as acute respiratory syndrome and chromosome damage in lymphocytes. In the nuclear industry, metals may be contaminated with radioactive materials. Cutting these metals, as in size reduction of gloveboxes and tanks, produces high concentrations of airborne transuranic particles. Particles of the respirable size range (size < 10 {micro}m) deposit in various compartments of the respiratory tract, the fraction and the site in the respiratory tract depending on the size of the particles. The dose delivered to the respiratory tract depends on the size distribution of the airborne particulates (aerosols) and their concentration and radioactivity/toxicity. The concentration of airborne particulate matter in an environment is dependent upon the rate of their production and the ventilation rate. Thus, measuring aerosol size distribution and generation rate is important for (1) the assessment of inhalation exposures of workers, (2) the selection of respiratory protection equipment, and (3) the design of appropriate filtration systems. Size distribution of the aerosols generated during cutting of different metals by plasma torch was measured. Cutting rates of different metals, rate of generation of respirable mass, as well as the fraction of the released kerf that become respirable were determined. This report presents results of these studies. Measurements of the particles generated during cutting of metal plates with a plasma arc torch revealed the presence of particles with mass median aerodynamic diameters of particles close to 0.2 {micro}m, arising from condensation of vaporized material and subsequent rapid formation of aggregates. Particles of larger size, resulting from ejection of melted material or fragments from the cutting zone, were also observed. This study presents data regarding the metal cutting rate, particle size distribution, and their generation rate, while using different cutting tools and metals. The study shows that respirable particles constitute only a small fraction of the released kerf.

  8. PARTICULATE CHARACTERIZATION AND ULTRA LOW-NOx BURNER FOR THE CONTROL OF NO{sub x} AND PM{sub 2.5} FOR COAL FIRED BOILERS

    SciTech Connect (OSTI)

    Ralph Bailey; Hamid Sarv; Jim Warchol; Debi Yurchison

    2001-09-30

    In response to the serious challenge facing coal-fired electric utilities with regards to curbing their NO{sub x} and fine particulate emissions, Babcock and Wilcox and McDermott Technology, Inc. conducted a project entitled, ''Particulate Characterization and Ultra Low-NO{sub x} Burner for the Control of NO{sub x} and PM{sub 2.5} for Coal Fired Boilers.'' The project included pilot-scale demonstration and characterization of technologies for removal of NO{sub x} and primary PM{sub 2.5} emissions. Burner development and PM{sub 2.5} characterization efforts were based on utilizing innovative concepts in combination with sound scientific and fundamental engineering principles and a state-of-the-art test facility. Approximately 1540 metric tonnes (1700 tons) of high-volatile Ohio bituminous coal were fired. Particulate sampling for PM{sub 2.5} emissions characterization was conducted in conjunction with burner testing. Based on modeling recommendations, a prototype ultra low-NO{sub x} burner was fabricated and tested at 100 million Btu/hr in the Babcock and Wilcox Clean Environment Development Facility. Firing the unstaged burner with a high-volatile bituminous Pittsburgh 8 coal at 100 million Btu/hr and 17% excess air achieved a NO{sub x} goal of 0.20 lb NO{sub 2}/million Btu with a fly ash loss on ignition (LOI) of 3.19% and burner pressure drop of 4.7 in H{sub 2}O for staged combustion. With the burner stoichiometry set at 0.88 and the overall combustion stoichiometry at 1.17, average NO{sub x} and LOI values were 0.14 lb NO{sub 2}/million Btu and 4.64% respectively. The burner was also tested with a high-volatile Mahoning 7 coal. Based on the results of this work, commercial demonstration is being pursued. Size classified fly ash samples representative of commercial low-NO{sub x} and ultra low-NO{sub x} combustion of Pittsburgh 8 coal were collected at the inlet and outlet of an ESP. The mass of size classified fly ash at the ESP outlet was sufficient to evaluate the particle size distribution, but was of insufficient size to permit reliable chemical analysis. The size classified fly ash from the inlet of the ESP was used for detailed chemical analyses. Chemical analyses of the fly ash samples from the ESP outlet using a high volume sampler were performed for comparison to the size classified results at the inlet. For all test conditions the particulate removal efficiency of the ESP exceeded 99.3% and emissions were less than the NSPS limits of {approx}48 mg/dscm. With constant combustion conditions, the removal efficiency of the ESP increased as the ESP voltage and Specific Collection Area (SCA) increased. The associated decrease in particle emissions occurred in size fractions both larger and smaller than 2.5 microns. For constant ESP voltage and SCA, the removal efficiency for the ultra low-NO{sub x} combustion ash (99.4-99.6%) was only slightly less than for the low-NO{sub x} combustion ash (99.7%). The decrease in removal efficiency was accompanied by a decrease in ESP current. The emission of PM{sub 2.5} from the ESP did not change significantly as a result of the change in combustion conditions. Most of the increase in emissions was in the size fraction greater than 2.5 microns, indicating particle re-entrainment. These results may be specific to the coal tested in this program. In general, the concentration of inorganic elements and trace species in the fly ash at the ESP inlet was dependent on the particle size fraction. The smallest particles tended to have higher concentrations of inorganic elements/trace species than larger particles. The concentration of most elements by particle size range was independent of combustion condition and the concentration of soluble ions in the fly ash showed little change with combustion condition when evaluated on a carbon free basis.

  9. EPA proposes to control automotive VOC emissions

    SciTech Connect (OSTI)

    Not Available

    1987-09-01

    US Environmental Protection Agency has proposed a vehicle control system for reducing gasoline vapors that can escape into the environment during refueling of motor vehicles. It has also has been proposed that gasoline refiners lower the volatility of commercial fuels in summer to reduce vehicle evaporative emissions. EPA said nationwide emissions of volatile organic compounds (VOC), a major contributor to the formation of urban ozone, could be reduced as much as 10% under the proposed pollution-control measures.

  10. Acceptance and Rejection of CSES Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Accepting, Rejecting Proposals Acceptance and Rejection of CSES Proposals High quality, cutting-edge science in the areas of astrophysics, space physics, solid planetary geoscience, and climate science. Contact Director Reiner Friedel (505) 665-1936 Email Professional Staff Assistant Georgia D. Sanchez (505) 665-0855 Email Acceptance Final decisions on acceptance and/or rejection of all proposals are reached after each science discipline's review meeting, held right after the close of

  11. 2011 Call for Proposals for NERSC Resources

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    1 2011 Call for Proposals for NERSC Resources The Office of Science of the U. S. Department of Energy (DOE) solicits proposals for allocations of high performance computing resources at the National Energy Research Scientific Computing Center (NERSC) at Lawrence Berkeley National Laboratory. Proposals must support the mission of the Office of Science. All current 2010 NERSC projects (including startup and ALCC projects) must be renewed for 2011 in order to continue using NERSC. The deadline for

  12. 2012 Call for Proposals for NERSC Resources

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2 2012 Call for Proposals for NERSC Resources The Office of Science of the U. S. Department of Energy (DOE) solicits proposals for allocations of high performance computing resources at the National Energy Research Scientific Computing Center (NERSC) at Lawrence Berkeley National Laboratory. Proposals must support the mission of the DOE Office of Science. All current 2011 NERSC projects (including startup, education, and ALCC projects) must be renewed for 2012 in order to continue using NERSC.

  13. Call issued for Proton Radiography Facility proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Call issued for Proton Radiography Facility proposals Call issued for Proton Radiography Facility proposals The proposal deadline is Feb. 6 for experiments to be carried out during Fiscal Year 2016 (Oct. 1, 2015 to Sept. 30, 2016), with consideration for extensions into FY17. January 5, 2015 Amy Clarke and Seth Imhoff of Materials Technology-Metallurgy (MST-6) align a copper density calibration object for a proton radiography experiment. Amy Clarke and Seth Imhoff of Materials

  14. NREL: Request for Proposals (limited access)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Requests for Proposals Printable Version RFP Number RXL-4-42118 Documentation Your company has been designated as a responder to a Request for Proposals (RFP) for the National Renewable Energy Laboratory (NREL), which is managed and operated by the Alliance for Sustainable Energy, LLC. The RFP is Number RXL-4-42118 entitled, "Commercial Building Partnerships Market Research Phase 2". This Web page gives you access to the documentation needed to complete your proposal, including the

  15. Request for Proposal Guidance | Department of Energy

    Energy Savers [EERE]

    Request for Proposal Guidance Request for Proposal Guidance When purchasing plug-in electric vehicle charging stations as part of your workplace charging program, your organization will want to consider issuing a Request for Proposal (RFP) to potential suppliers. This Guidance provides an explanation of the topics to cover in a workplace charging RFP. It is not intended to be a sample or manual for acquiring charging stations, but rather to serve as a reference for an employer. PDF icon Sample

  16. Duro Corporation: Proposed Penalty (2014-CE-23009)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Duro Corporation failed to certify cooking products as compliant with the applicable energy conservation standards.

  17. Perlick: Proposed Penalty (2013-SE-14002)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Perlick Corporation manufactured and distributed noncompliant refrigerator basic model HP48RR in the U.S.

  18. Viking Range: Proposed Penalty (2014-CE-23014)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Viking Range, LLC failed to certify cooking products as compliant with the applicable energy conservation standards.

  19. DHI: Proposed Penalty (2014-CE-32004)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that DHI Corp. failed to certify a variety of ceiling fans as compliant with the applicable energy conservation standards.

  20. Harrington: Proposed Penalty (2014-SW-28011)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Harrington Brass Works manufactured and distributed noncompliant faucets in the U.S.

  1. Whirlpool: Proposed Penalty (2014-CE-21010)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Whirlpool Corporation failed to certify residential clothes dryers as compliant with the applicable energy conservation standards.

  2. American Range: Proposed Penalty (2014-CE-23006)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that American Range Corporation failed to certify cooking products as compliant with the applicable energy conservation standards.

  3. Ramblewood Green: Proposed Penalty (2014-CE-23017)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Ramblewood Green Ltd. failed to certify cooking products as compliant with the applicable energy conservation standards.

  4. Dacor: Proposed Penalty (2014-CE-23010)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Dacor failed to certify cooking products as compliant with the applicable energy conservation standards.

  5. Heat Controller: Proposed Penalty (2014-SE-15004)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Heat Controller, Inc. privately labeled and distributed noncompliant room air conditioners in the U.S.

  6. Nicor: Proposed Penalty (2014-CE-32016)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Nicor, Inc. failed to certify a variety of ceiling fans as compliant with the applicable energy conservation standards.

  7. Electrolux: Proposed Penalty (2014-CE-23015)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Electrolux North America, Inc. failed to certify cooking products as compliant with the applicable energy conservation standards.

  8. Fisher & Paykel: Proposed Penalty (2014-CE-23012)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Fisher & Paykel Appliances, Inc. failed to certify cooking products as compliant with the applicable energy conservation standards.

  9. Kohler: Proposed Penalty (2014-CW-30003)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Kohler Co. failed to certify a variety of water closets as compliant with the applicable water conservation standards.

  10. Averen: Proposed Penalty (2010-CW-0711)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Averen, Inc. failed to certify a variety of faucets as compliant with the applicable water conservation standards.

  11. CE: Proposed Penalty (2013-SE-1429)

    Office of Energy Efficiency and Renewable Energy (EERE)

    DOE alleged in a Notice of Proposed Civil Penalty that CE North America, LLC, privately labeled and distributed noncompliant freezers in the U.S.

  12. Haier: Proposed Penalty (2011-SE-1408)

    Office of Energy Efficiency and Renewable Energy (EERE)

    DOE alleged in a Notice of Proposed Civil Penalty that Haier America Trading, L.L.C. privately labeled and distributed noncompliant freezers in the U.S.

  13. Evaluation and Selection of IGPPS Proposals

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    for major challenges. 1.0 Serious deficiencies render the proposal uninteresting (innovation andor impact) or implausible (team or approach). A "0" is grounds for...

  14. Danby Products: Proposed Penalty (2012-CE-1415)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Danby Products, Inc. failed to certify refrigerators and freezers as compliant with the energy conservation standards.

  15. Lutron Electronics: Proposed Penalty (2012-SE-3796)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Lutron Electronics Co., Inc. manufactured and distributed noncompliant class A external power supplies in the U.S.

  16. Department of Energy Proposed Agency Information Collection:...

    Broader source: Energy.gov (indexed) [DOE]

    to OMB pursuant to the Paperwork Reduction Act of 1995. Federal Register Volume 75 No 100. Federal Register notice for the Department of Energy Proposed Agency Information...

  17. Department of Energy Proposed Agency Information Collection:...

    Broader source: Energy.gov (indexed) [DOE]

    Department of Energy proposed Agency Information Collection: The Department of Energy (DOE) invites public comment on DOE's request to the Office of Management and Budget (OMB) to...

  18. Whirlpool: Proposed Penalty (2013-SE-1420)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Whirlpool Corporation manufactured and distributed noncompliant refrigerator-freezers in the U.S.

  19. Proposed Agency Information Collection: Federal Register Notice...

    Office of Environmental Management (EM)

    54 - Aug. 10, 2011 Proposed Agency Information Collection: Federal Register Notice Volume 76, No. 154 - Aug. 10, 2011 The Department of Energy (DOE) invites public comment on DOE's...

  20. Tips for Writing a Competitive User Proposal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    loosely related experiments in a single proposal Clearly articulate the science case: state the problem and its importance Place your research plan in the context of...