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Sample records for depth initial flow

  1. Heat Flow At Standard Depth | Open Energy Information

    Open Energy Info (EERE)

    to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Heat Flow At Standard Depth Abstract Secular and long-term periodic changes in surface...

  2. Sandia Energy - Molten Nitrate Salt Initial Flow Testing is a...

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

    Nitrate Salt Initial Flow Testing is a Tremendous Success Home Renewable Energy News Concentrating Solar Power Solar Molten Nitrate Salt Initial Flow Testing is a Tremendous...

  3. Using the depth-velocity-size diagram to interpret equilibrium bed configurations in river flows

    SciTech Connect (OSTI)

    Southard, J.B. (Massachusetts Institute of Technology, Cambridge, MA (USA))

    1990-05-01

    Data from flume studies that report equilibrium bed configuration as well as water temperature, flow depth, flow velocity, and sediment size were used to develop the best approximation to the relationships among the various bed phases (ripples, dunes, lower regime plane bed, upper regime plane bed, and antidunes) in a three-axis graph (depth-velocity-size diagram) with dimensionless measures of mean flow depth, mean flow velocity, and sediment size along the axis. Relationships are shown in a series of depth-velocity and velocity-size sections through the diagram. Boundaries between bed-phase stability fields are drawn as surfaces that minimize, misplacement of data points. A large subset of the data, for which reliable values of bed shear stress are reported, was also used to represent the stability relationships in a graph of dimensionless boundary shear stress against dimensionless sediment size, but with results less useful for fluvial flow interpretation. The diagram covers about one order of magnitude in flow depth. To be useful for river flows, the diagram must be extrapolated in flow depth by about one more order of magnitude, but this is not a serious problem for approximate work. The depth-velocity-size diagram permits prediction of equilibrium bed configuration in river flows when the approximate flow depth and mean flow velocity are known. Because the diagram is essentially dimensionless, the effect of water temperature (via the fluid viscosity) on the bed configuration is easily accounted for by use of the diagram.

  4. Letter Report: Borehole Flow and Horizontal Hydraulic Conductivity with Depth at Well ER-12-4

    SciTech Connect (OSTI)

    Phil L. Oberlander; Charles E. Russell

    2005-12-31

    Borehole flow and fluid temperature during pumping were measured at well ER-12-4 at the Nevada Test Site in Nye County, Nevada. This well was constructed to characterize the carbonate aquifer. The well is cased from land surface to the total depth at 1,132 m (3,713 ft bgs) below ground surface (bgs). The screened section of the well consists of alternating sections of slotted well screen and blank casing from 948 to 1,132 m bgs (3,111 to 3,713 ft bgs). Borehole flow velocity (LT-1) with depth was measured with an impeller flowmeter from the top of the screened section to the maximum accessible depth while the well was pumped and under ambient conditions. A complicating factor to data interpretation is that the well was not filter packed and there is upward and downward vertical flow in the open annulus under ambient and pumping conditions. The open annulus in the well casing likely causes the calculated borehole flow rates being highly nonrepresentative of inflow from the formation. Hydraulic conductivities calculated under these conditions would require unsupportable assumptions and would be subject to very large uncertainties. Borehole hydraulic conductivities are not presented under these conditions.

  5. ICFT- An Initial Closed-Loop Flow Test of the Fenton Hill Phase...

    Open Energy Info (EERE)

    ICFT- An Initial Closed-Loop Flow Test of the Fenton Hill Phase II HDR Reservoir Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: ICFT- An Initial...

  6. Organized Oscillations of Initially-Turbulent Flow Past a Cavity

    SciTech Connect (OSTI)

    J.C. Lin; D. Rockwell

    2002-09-17

    Flow past an open cavity is known to give rise to self-sustained oscillations in a wide variety of configurations, including slotted-wall, wind and water tunnels, slotted flumes, bellows-type pipe geometries, high-head gates and gate slots, aircraft components and internal piping systems. These cavity-type oscillations are the origin of coherent and broadband sources of noise and, if the structure is sufficiently flexible, flow-induced vibration as well. Moreover, depending upon the state of the cavity oscillation, substantial alterations of the mean drag may be induced. In the following, the state of knowledge of flow past cavities, based primarily on laminar inflow conditions, is described within a framework based on the flow physics. Then, the major unresolved issues for this class of flows will be delineated. Self-excited cavity oscillations have generic features, which are assessed in detail in the reviews of Rockwell and Naudascher, Rockwell, Howe and Rockwell. These features, which are illustrated in the schematic of Figure 1, are: (i) interaction of a vorticity concentration(s) with the downstream corner, (ii) upstream influence from this corner interaction to the sensitive region of the shear layer formed from the upstream corner of the cavity; (iii) conversion of the upstream influence arriving at this location to a fluctuation in the separating shear layer; and (iv) amplification of this fluctuation in the shear layer as it develops in the streamwise direction. In view of the fact that inflow shear-layer in the present investigation is fully turbulent, item (iv) is of particular interest. It is generally recognized, at least for laminar conditions at separation from the leading-corner of the cavity, that the disturbance growth in the shear layer can be described using concepts of linearized, inviscid stability theory, as shown by Rockwell, Sarohia, and Knisely and Rockwell. As demonstrated by Knisely and Rockwell, on the basis of experiments interpreted with the aid of linearized theory, not only the fundamental component of the shear layer instability may be present, but a number of additional, primarily lower frequency components can exist as well. In fact, the magnitude of these components can be of the same order as the fundamental component. These issues have not been addressed for the case of a fully-turbulent in-flow and its separation from the leading corner of the cavity.

  7. Understanding heat and groundwater flow through continental flood basalt provinces: insights gained from alternative models of permeability/depth relationships for the Columbia Plateau, USA

    SciTech Connect (OSTI)

    Burns, Erick R.; Williams, Colin F.; Ingebritsen, Steven E.; Voss, Clifford I.; Spane, Frank A.; DeAngelo, Jacob

    2015-02-01

    Heat-flow mapping of the western USA has identified an apparent low-heat-flow anomaly coincident with the Columbia Plateau Regional Aquifer System, a thick sequence of basalt aquifers within the Columbia River Basalt Group (CRBG). A heat and mass transport model (SUTRA) was used to evaluate the potential impact of groundwater flow on heat flow along two different regional groundwater flow paths. Limited in situ permeability (k) data from the CRBG are compatible with a steep permeability decrease (approximately 3.5 orders of magnitude) at 600–900 m depth and approximately 40°C. Numerical simulations incorporating this permeability decrease demonstrate that regional groundwater flow can explain lower-than-expected heat flow in these highly anisotropic (kx/kz ~ 104) continental flood basalts. Simulation results indicate that the abrupt reduction in permeability at approximately 600 m depth results in an equivalently abrupt transition from a shallow region where heat flow is affected by groundwater flow to a deeper region of conduction-dominated heat flow. Most existing heat-flow measurements within the CRBG are from shallower than 600 m depth or near regional groundwater discharge zones, so that heat-flow maps generated using these data are likely influenced by groundwater flow. Substantial k decreases at similar temperatures have also been observed in the volcanic rocks of the adjacent Cascade Range volcanic arc and at Kilauea Volcano, Hawaii, where they result from low-temperature hydrothermal alteration.

  8. Initial

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

    Initial operation of a pulse-burst laser system for high-repetition-rate Thomson ... A pulse-burst laser has been installed for Thomson scattering measurements on the Madison ...

  9. ARM - Measurement - Snow depth

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

    Send Measurement : Snow depth Snow depth measured at the surface Categories Surface Properties Instruments The above measurement is considered scientifically relevant for the...

  10. Initial test results from the RedFlow 5 kW, 10 kWh zinc-bromide module, phase 1.

    SciTech Connect (OSTI)

    Ferreira, Summer Rhodes; Rose, David Martin

    2012-02-01

    In this paper the performance results of the RedFlow zinc-bromide module (ZBM) Gen 2.0 are reported for Phase 1 of testing, which includes initial characterization of the module. This included physical measurement, efficiency as a function of charge and discharge rates, efficiency as a function of maximum charge capacity, duration of maximum power supplied, and limited cycling with skipped strip cycles. The goal of this first phase of testing was to verify manufacturer specifications of the zinc-bromide flow battery. Initial characterization tests have shown that the ZBM meets the manufacturer's specifications. Further testing, including testing as a function of temperature and life cycle testing, will be carried out during Phase 2 of the testing, and these results will be issued in the final report, after Phase 2 testing has concluded.

  11. Potential Impacts of Leakage from Black Rock Reservoir on the Hanford Site Unconfined Aquifer: Initial Hypothetical Simulations of Flow and Contaminant Transport

    SciTech Connect (OSTI)

    Freedman, Vicky L.

    2008-01-30

    Initial scoping calculations of the unconfined aquifer at the Hanford Site were carried out for the U.S. Bureau of Reclamation (USBR) to investigate the potential impacts on the Hanford unconfined aquifer that would result from leakage from the proposed Black Rock Reservoir to the west. Although impacts on groundwater flow and contaminant transport were quantified based on numerical simulation results, the investigation represented a qualitative assessment of the potential lateral recharge that could result in adverse effects on the aquifer. Because the magnitude of the potential leakage is unknown, hypothetical bounding calculations were performed. When a quantitative analysis of the magnitude of the potential recharge from Black Rock Reservoir is obtained, the hydrologic impacts analysis will be revisited. The analysis presented in this report represents initial bounding calculations. A maximum lateral recharge (i.e., upland flux) was determined in the first part of this study by executing steady-state flow simulations that raised the water table no higher than the elevation attained in the Central Plateau during the Hanford operational period. This metric was selected because it assumed a maximum remobilization of contaminants that existed under previous fully saturated conditions. Three steady-state flow fields were then used to analyze impacts to transient contaminant transport: a maximum recharge (27,000 acre-ft/yr), a no additional flux (365 acre-ft/yr), and an intermediate recharge case (16,000 acre-ft/yr). The transport behavior of four radionuclides was assessed for a 300 year simulation period with the three flow fields. The four radionuclides are tritium, iodine-129, technetium-99, and uranium-238. Transient flow and transport simulations were used to establish hypothetical concentration distributions in the subsurface. Using the simulated concentration distributions in 2005 as initial conditions for steady-state flow runs, simulations were executed to investigate the relative effects on contaminant transport from the increased upland fluxes. Contaminant plumes were analyzed for 1) peak concentrations and arrival times at downstream points of compliance, 2) the area of the aquifer contaminated at or above the drinking water standard (DWS), and 3) the total activity remaining in the domain at the end of the simulation. In addition to this analysis, unit source release simulations from a hypothetical tracer were executed to determine relative travel times from the Central Plateau. The results of this study showed that increases in the lateral recharge had limited impact on regional flow directions but accelerated contaminant transport. Although contaminant concentrations may have initially increased for the more mobile contaminants (tritium, technetium-99, and iodine-129), the accelerated transport caused dilution and a more rapid decline in concentrations relative to the Base Case (no additional flux). For the low-mobility uranium-238, higher lateral recharge caused increases in concentration, but these concentrations never approached the DWS. In this preliminary investigation, contaminant concentrations did not exceed the DWS study metric. With the increases in upland fluxes, more mass was transported out of the aquifer, and concentrations were diluted with respect to the base case where no additional flux was considered.

  12. Potential Impacts of Leakage from Black Rock Reservoir on the Hanford Site Unconfined Aquifer: Initial Hypothetical Simulations of Flow and Contaminant Transport

    SciTech Connect (OSTI)

    Freedman, Vicky L.

    2007-03-09

    Initial scoping calculations of the unconfined aquifer at the Hanford Site were carried out for the U.S. Bureau of Reclamation (USBR) to investigate the potential impacts on the Hanford unconfined aquifer that would result from leakage from the proposed Black Rock Reservoir to the west. Although impacts on groundwater flow and contaminant transport were quantified based on numerical simulation results, the investigation represented a qualitative assessment of the potential lateral recharge that could result in adverse effects on the aquifer. Because the magnitude of the potential leakage is unknown, hypothetical bounding calculations were performed. When a quantitative analysis of the magnitude of the potential recharge from Black Rock Reservoir is obtained, the hydrologic impacts analysis will be revisited. The analysis presented in this report represent initial bounding calculations. A maximum lateral recharge (i.e., upland flux) was determined in the first part of this study by executing steady-state flow simulations that raised the water table no higher than the elevation attained in the Central Plateau during the Hanford operational period. This metric was selected because it assumed a maximum remobilization of contaminants that existed under previous fully saturated conditions. Three steady-state flow fields were then used to analyze impacts to transient contaminant transport: a maximum recharge (27,000 acre-ft/yr), a no additional flux (365 acre-ft/yr), and an intermediate recharge case (16,000 acre-ft/yr). The transport behavior of four radionuclides was assessed for a 300 year simulation period with the three flow fields. The four radionuclides are current contaminants of concern (COCs) in the Central Plateau and include tritium, iodine-129, technetium-99, and uranium-238. Transient flow and transport simulations were used to establish hypothetical concentration distributions in the subsurface. Using the simulated concentration distributions in 2005 as initial conditions for steady-state flow runs, simulations were executed to investigate the relative effects on contaminant transport from the increased upland fluxes. Contaminant plumes were analyzed for 1) peak concentrations and arrival times at downstream points of compliance, 2) the area of the aquifer contaminated at or above the drinking water standard (DWS), and 3) the total activity remaining in the domain at the end of the simulation. In addition to this analysis, unit source release simulations from a hypothetical tracer were executed to determine relative travel times from the Central Plateau. The results of this study showed that increases in the upland boundary fluxes 1) had little impact on regional flow directions and 2) accelerated contaminant transport. Although contaminant concentrations have initially increased for the more mobile contaminants (tritium, technetium-99, and iodine-129), the accelerated transport caused dilution and a more rapid decline in concentrations relative to the Base Case (no additional flux). For the low-mobility uranium-238, higher upland fluxes caused increases in concentration, but these concentrations never exceeded the DWS. No significant effects on contaminant concentrations were identified at the Core Zone, Columbia River, or buffer zone area separating these two compliance boundaries. When lateral recharge at the upland boundaries was increased, more mass was transported out of the aquifer and discharged into the Columbia River. These concentrations, however, were diluted with respect to the Base Case, where no potential leakage from the proposed reservoir was considered.

  13. Variable depth core sampler

    DOE Patents [OSTI]

    Bourgeois, P.M.; Reger, R.J.

    1996-02-20

    A variable depth core sampler apparatus is described comprising a first circular hole saw member, having longitudinal sections that collapses to form a point and capture a sample, and a second circular hole saw member residing inside said first hole saw member to support the longitudinal sections of said first hole saw member and prevent them from collapsing to form a point. The second hole saw member may be raised and lowered inside said first hole saw member. 7 figs.

  14. Variable depth core sampler

    DOE Patents [OSTI]

    Bourgeois, Peter M.; Reger, Robert J.

    1996-01-01

    A variable depth core sampler apparatus comprising a first circular hole saw member, having longitudinal sections that collapses to form a point and capture a sample, and a second circular hole saw member residing inside said first hole saw member to support the longitudinal sections of said first hole saw member and prevent them from collapsing to form a point. The second hole saw member may be raised and lowered inside said first hole saw member.

  15. ARM - Measurement - Aerosol optical depth

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

    Modeling Testbed AOD : Aerosol Optical Depth, derived from atmospheric extinction of solar irradiance AATS : Ames Airborne Tracking Sunphotometer CSPHOT : Cimel Sunphotometer...

  16. Progress in Initiator Modeling

    SciTech Connect (OSTI)

    Hrousis, C A; Christensen, J S

    2009-05-04

    There is great interest in applying magnetohydrodynamic (MHD) simulation techniques to the designs of electrical high explosive (HE) initiators, for the purpose of better understanding a design's sensitivities, optimizing its performance, and/or predicting its useful lifetime. Two MHD-capable LLNL codes, CALE and ALE3D, are being used to simulate the process of ohmic heating, vaporization, and plasma formation in the bridge of an initiator, be it an exploding bridgewire (EBW), exploding bridgefoil (EBF) or slapper type initiator. The initiation of the HE is simulated using Tarver Ignition & Growth reactive flow models. 1-D, 2-D and 3-D models have been constructed and studied. The models provide some intuitive explanation of the initiation process and are useful for evaluating the potential impact of identified aging mechanisms (such as the growth of intermetallic compounds or powder sintering). The end product of this work is a simulation capability for evaluating margin in proposed, modified or aged initiation system designs.

  17. Rotating drum variable depth sampler

    DOE Patents [OSTI]

    Nance, Thomas A.; Steeper, Timothy J.

    2008-07-01

    A sampling device for collecting depth-specific samples in silt, sludge and granular media has three chambers separated by a pair of iris valves. Rotation of the middle chamber closes the valves and isolates a sample in a middle chamber.

  18. Projects & Initiatives

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

    Expand Finance & Rates Involvement & Outreach Expand Involvement & Outreach Doing Business Expand Doing Business Skip navigation links Initiatives Columbia River Treaty Non...

  19. Recommended Practice: Defense-in-Depth

    Energy Savers [EERE]

    External Report # INL/EXT-06-11478 Control Systems Cyber Security: Defense in Depth Strategies May 2006 Prepared by Idaho National Laboratory Recommended Best Practice: Defense in Depth 2 Table of Contents Keywords............................................................................................................................. 3 Introduction......................................................................................................................... 3 Background

  20. Property:Depth(m) | Open Energy Information

    Open Energy Info (EERE)

    Depth(m) Jump to: navigation, search This is a property of type String. Pages using the property "Depth(m)" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft...

  1. National Nanotechnology Initiative's Signature Initiative Sustainable...

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

    Nanotechnology Initiative National Nanotechnology Initiative's Signature Initiative Sustainable Nanomanufacturing: Creating the Industries of the Future Dr. Robert Pohanka Director ...

  2. Uterine caliper and depth gauge

    DOE Patents [OSTI]

    King, Loyd L.; Wheeler, Robert G.; Fish, Thomas M.

    1977-01-01

    A uterine caliper and sound consisting of an elongated body having outwardly biased resilient caliper wings and a spring-loaded slidable cervical stop. A slide on the body is operatively connected to the wings by a monofilament and operates with respect to a first scale on the body as a width indicator. A rod extending longitudinally on the body is connected to the cervical stop and cooperates with a second scale on the body as a depth indicator. The instrument can be positioned to measure the distance from the outer cervical ostium to the fundus, as read on said second scale. The wings may be allowed to open by moving the slide, and when the wings engage the utero-tubal junctions, the width may be read on said first scale. By adjustment of the caliper wings the instrument may be retracted until the resistance of the inner ostium of the cervix is felt, enabling the length of the cervical canal to be read directly by the position of the longitudinal indicator rod with respect to said second scale. The instrument may be employed to measure the width of the uterine cavity at any position between the inner ostium of the cervix and the fundus.

  3. SCB initiator

    DOE Patents [OSTI]

    Bickes, Jr., Robert W. (Albuquerque, NM); Renlund, Anita M. (Albuquerque, NM); Stanton, Philip L. (Albuquerque, NM)

    1994-01-01

    A detonator for high explosives initiated by mechanical impact includes a cylindrical barrel, a layer of flyer material mechanically covering the barrel at one end, and a semiconductor bridge ignitor including a pair of electrically conductive pads connected by a semiconductor bridge. The bridge is in operational contact with the layer, whereby ignition of said bridge forces a portion of the layer through the barrel to detonate the explosive. Input means are provided for igniting the semiconductor bridge ignitor.

  4. SCB initiator

    DOE Patents [OSTI]

    Bickes Jr., Robert W.; Renlund, Anita M.; Stanton, Philip L.

    1994-11-01

    A detonator for high explosives initiated by mechanical impact includes a cylindrical barrel, a layer of flyer material mechanically covering the barrel at one end, and a semiconductor bridge ignitor including a pair of electrically conductive pads connected by a semiconductor bridge. The bridge is in operational contact with the layer, whereby ignition of said bridge forces a portion of the layer through the barrel to detonate the explosive. Input means are provided for igniting the semiconductor bridge ignitor.

  5. Tanzania-Capital Markets Climate Initiative | Open Energy Information

    Open Energy Info (EERE)

    Markets Climate Initiative (CMCI) is a public-private initiative designed to support the scale up of private finance flows for low carbon technologies, solutions and...

  6. South Africa-Capital Markets Climate Initiative | Open Energy...

    Open Energy Info (EERE)

    Markets Climate Initiative (CMCI) is a public-private initiative designed to support the scale up of private finance flows for low carbon technologies, solutions and...

  7. Kenya-Capital Markets Climate Initiative | Open Energy Information

    Open Energy Info (EERE)

    Markets Climate Initiative (CMCI) is a public-private initiative designed to support the scale up of private finance flows for low carbon technologies, solutions and...

  8. India-Capital Markets Climate Initiative | Open Energy Information

    Open Energy Info (EERE)

    Markets Climate Initiative (CMCI) is a public-private initiative designed to support the scale up of private finance flows for low carbon technologies, solutions and...

  9. A Simple Heat-Flow Quality Function And Appraisal Of Heat-Flow...

    Open Energy Info (EERE)

    depths less than 2000 m and about 50% are Bottom Hole Temperatures (BHT). Heat-flow density distribution models can be expanded to include estimates of heat flow derived from...

  10. Microdrill Initiative - Initial Market Evaluation

    SciTech Connect (OSTI)

    Spears & Associates, Inc

    2003-07-01

    The U.S. Department of Energy (DOE) is launching a major research and development initiative to create a small, fast, inexpensive and environmentally friendly rig for drilling 5000 feet boreholes to investigate potential oil and gas reservoirs. DOE wishes to get input from petroleum industry operators, service companies and equipment suppliers on the operation and application of this coiled-tubing-based drilling unit. To that end, DOE has asked Spears & Associates, Inc. (SAI) to prepare a special state-of-the-market report and assist during a DOE-sponsored project-scoping workshop in Albuquerque near the end of April 2003. The scope of the project is four-fold: (1) Evaluate the history, status and future of demand for very small bore-hole drilling; (2) Measure the market for coiled tubing drilling and describe the state-of-the-art; (3) Identify companies and individuals who should have an interest in micro drilling and invite them to the DOE workshop; and (4) Participate in 3 concurrent workshop sessions, record and evaluate participant comments and report workshop conclusions.

  11. Control of electrode depth in electroslag remelting

    DOE Patents [OSTI]

    Melgaard, David K.; Shelmidine, Gregory J.; Damkroger, Brian K.

    2002-01-01

    A method of and apparatus for controlling an electroslag remelting furnace by driving the electrode at a nominal speed based upon melting rate and geometry while making minor proportional adjustments based on a measured metric of the electrode immersion depth. Electrode drive speed is increased if a measured metric of electrode immersion depth differs from a set point by a predetermined amount, indicating that the tip is too close to the surface of a slag pool. Impedance spikes are monitored to adjust the set point for the metric of electrode immersion depth based upon one or more properties of the impedance spikes.

  12. TRENDS IN ESTIMATED MIXING DEPTH DAILY MAXIMUMS

    SciTech Connect (OSTI)

    Buckley, R; Amy DuPont, A; Robert Kurzeja, R; Matt Parker, M

    2007-11-12

    Mixing depth is an important quantity in the determination of air pollution concentrations. Fireweather forecasts depend strongly on estimates of the mixing depth as a means of determining the altitude and dilution (ventilation rates) of smoke plumes. The Savannah River United States Forest Service (USFS) routinely conducts prescribed fires at the Savannah River Site (SRS), a heavily wooded Department of Energy (DOE) facility located in southwest South Carolina. For many years, the Savannah River National Laboratory (SRNL) has provided forecasts of weather conditions in support of the fire program, including an estimated mixing depth using potential temperature and turbulence change with height at a given location. This paper examines trends in the average estimated mixing depth daily maximum at the SRS over an extended period of time (4.75 years) derived from numerical atmospheric simulations using two versions of the Regional Atmospheric Modeling System (RAMS). This allows for differences to be seen between the model versions, as well as trends on a multi-year time frame. In addition, comparisons of predicted mixing depth for individual days in which special balloon soundings were released are also discussed.

  13. SunShot Initiative Mission | Department of Energy

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

    The SunShot Vision Study provides an in-depth assessment of the potential for solar ... SunShot Home About the SunShot Initiative Mission Key Activities History Leadership Awards ...

  14. Flow tests of the Gladys McCall well

    SciTech Connect (OSTI)

    Randolph, P.L.; Hayden, C.G.; Rogers, L.A. )

    1992-04-01

    This report pulls together the data from all of the geopressured-geothermal field research conducted at the Gladys McCall well. The well produced geopressured brine containing dissolved natural gas from the Lower Miocene sands at a depth of 15,150 to 16,650 feet. More than 25 million barrels of brine and 727 million standard cubic feet of natural gas were produced in a series of flow tests between December 1982 and October 1987 at various brine flow rates up to 28,000 barrels per day. Initial short-term flow tests for the Number 9 Sand found the permeability to be 67 to 85 md (millidarcies) for a brine volume of 85 to 170 million barrels. Initial short-term flow tests for the Number 8 Sand found a permeability of 113 to 132 md for a reservoir volume of 430 to 550 million barrels of brine. The long-term flow and buildup test of the Number 8 Sand found that the high-permeability reservoir connected to the wellbore (measured by the short-term flow test) was connected to a much larger, low-permeability reservoir. Numerical simulation of the flow and buildup tests required this large connected reservoir to have a volume of about 8 billion barrels (two cubic miles of reservoir rock) with effective permeabilities in the range of 0.2 to 20 md. Calcium carbonate scale formation in the well tubing and separator equipment was a problem. During the first 2 years of production, scale formation was prevented in the surface equipment by injection of an inhibitor upstream of the choke. Starting in 1985, scale formation in the production tubing was successfully prevented by injecting inhibitor pills'' directly into the reservoir. Corrosion and/or erosion of surface piping and equipment, as well as disposal well tubing, was also significant.

  15. Final Report: Depth-specific Hydraulic Testing of Yucca Flat and Frenchman Flat Environmental Restoration Wells, FY 2003

    SciTech Connect (OSTI)

    Oberlander, Phil; Russell, Charles

    2004-03-09

    Borehole flow logging contributes a greater understanding of subsurface conditions than measuring well discharge only at land surface. Combining the results of up to nine borehole flow logs to estimate hydraulic conductivity with depth includes data averaging over vertical intervals and averaging of calculated hydraulic conductivities among the various flow logs. Data filtering is also necessary to aid in differentiating between changes in borehole flow rate due to flow turbulence (and other causes) and those associated with groundwater inflow. Borehole flow logging during well pumping has provided the quantity of groundwater iniflow and hydraulic conductivity at depth for three wells. The results provided are believed to be an appropriate balance between predictive accuracy and preserving spatial resolution.

  16. Flow Coefficient

    Office of Scientific and Technical Information (OSTI)

    this type of flow in porous and fractured rocks, including flow in geothermal reservoirs. ... and Renewable Energy, Office of Geothermal and Wind Technologies of the U.S. ...

  17. WCI - World Consensus Initiative

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

    World Consensus Initiative 2005 Workshop Recap WCI 2004 Website WCI Book Contributed Papers

  18. Keck Futures Initiative

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

    National Academies Keck Futures Initiative Complex Systems Conference, November 12 - 15, 2008 Challa Kumar(second from left) was invited to attend 1st National Academies Keck Futures Initiative Complex Systems Conference

  19. DOE TEAM Initiative

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

    Presented by: Presented by: Geoffrey C. Bell, PE Geoffrey C. Bell, PE High Tech Buildings High Tech Buildings ~ ~ Berkeley Fume Hood Berkeley Fume Hood ~ ~ Aerosol Duct Sealing Aerosol Duct Sealing DOE TEAM Initiative DOE TEAM Initiative Facilities and Environmental Energy Technologies Facilities and Environmental Energy Technologies 1 Facilities and Environmental Energy Technologies Facilities and Environmental Energy Technologies 2 DOE TEAM Initiative DOE TEAM Initiative High Tech Buildings

  20. Wind Integration Initiatives

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

    Expand Projects & Initiatives Finance & Rates Expand Finance & Rates Involvement & Outreach Expand Involvement & Outreach Doing Business Expand Doing Business...

  1. Tsunami and acoustic-gravity waves in water of constant depth

    SciTech Connect (OSTI)

    Hendin, Gali; Stiassnie, Michael

    2013-08-15

    A study of wave radiation by a rather general bottom displacement, in a compressible ocean of otherwise constant depth, is carried out within the framework of a three-dimensional linear theory. Simple analytic expressions for the flow field, at large distance from the disturbance, are derived. Realistic numerical examples indicate that the Acoustic-Gravity waves, which significantly precede the Tsunami, are expected to leave a measurable signature on bottom-pressure records that should be considered for early detection of Tsunami.

  2. Gulf of Mexico Proved Reserves By Water Depth, 2009

    Gasoline and Diesel Fuel Update (EIA)

    Gulf of Mexico Proved Reserves and Production by Water Depth, 2009 1 Gulf of Mexico Proved Reserves and Production by Water Depth The Gulf of Mexico Federal Offshore region (GOM ...

  3. APEC Smart Grid Initiative

    SciTech Connect (OSTI)

    Bloyd, Cary N.

    2012-03-01

    This brief paper describes the activities of the Asia Pacific Economic Cooperation (APEC) Smart Grid Initiative (ASGI) which is being led by the U.S. and developed by the APEC Energy Working Group. In the paper, I describe the origin of the initiative and briefly mention the four major elements of the initiative along with existing APEC projects which support it.

  4. Hyperspectral Aerosol Optical Depths from TCAP Flights

    SciTech Connect (OSTI)

    Shinozuka, Yohei; Johnson, Roy R.; Flynn, Connor J.; Russell, P. B.; Schmid, Beat; Redemann, Jens; Dunagan, Stephen; Kluzek, Celine D.; Hubbe, John M.; Segal-Rosenheimer, Michal; Livingston, J. M.; Eck, T.; Wagener, Richard; Gregory, L.; Chand, Duli; Berg, Larry K.; Rogers, Ray; Ferrare, R. A.; Hair, John; Hostetler, Chris A.; Burton, S. P.

    2013-11-13

    4STAR (Spectrometer for Sky-Scanning, Sun-Tracking Atmospheric Research), the worlds first hyperspectral airborne tracking sunphotometer, acquired aerosol optical depths (AOD) at 1 Hz during all July 2012 flights of the Two Column Aerosol Project (TCAP). Root-mean square differences from AERONET ground-based observations were 0.01 at wavelengths between 500-1020 nm, 0.02 at 380 and 1640 nm and 0.03 at 440 nm in four clear-sky fly-over events, and similar in ground side-by-side comparisons. Changes in the above-aircraft AOD across 3-km-deep spirals were typically consistent with integrals of coincident in situ (on DOE Gulfstream 1 with 4STAR) and lidar (on NASA B200) extinction measurements within 0.01, 0.03, 0.01, 0.02, 0.02, 0.02 at 355, 450, 532, 550, 700, 1064 nm, respectively, despite atmospheric variations and combined measurement uncertainties. Finer vertical differentials of the 4STAR measurements matched the in situ ambient extinction profile within 14% for one homogeneous column. For the AOD observed between 350-1660 nm, excluding strong water vapor and oxygen absorption bands, estimated uncertainties were ~0.01 and dominated by (then) unpredictable throughput changes, up to +/-0.8%, of the fiber optic rotary joint. The favorable intercomparisons herald 4STARs spatially-resolved high-frequency hyperspectral products as a reliable tool for climate studies and satellite validation.

  5. Flow chamber

    DOE Patents [OSTI]

    Morozov, Victor

    2011-01-18

    A flow chamber having a vacuum chamber and a specimen chamber. The specimen chamber may have an opening through which a fluid may be introduced and an opening through which the fluid may exit. The vacuum chamber may have an opening through which contents of the vacuum chamber may be evacuated. A portion of the flow chamber may be flexible, and a vacuum may be used to hold the components of the flow chamber together.

  6. Initiatives | Department of Energy

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

    Initiatives Initiatives Through a variety of cross-cutting program initiatives, the Office of International Affairs (IA) responds to the most pressing global energy challenges, ranging from energy security and market volatility to long-term efforts to reduce carbon pollution and the impacts of climate change. IA has the primary responsibility for coordinating the efforts of diverse elements in the Department to ensure a unified voice in our international energy policy. This page highlights some

  7. TVA- Solar Solutions Initiative

    Broader source: Energy.gov [DOE]

    Solar Solutions Initiative (SSI) is a pilot program that offers additional financial incentives for Solar PV systems participating in the Renewable Standard Offer program. Applications for new...

  8. About the Initiative

    SciTech Connect (OSTI)

    Not Available

    2007-06-01

    This factsheet gives an overview of the Solar America Initiative (SAI), including goals, research and development strategy, market transformation strategy, and benefits to nation.

  9. National Laboratory Impact Initiative

    Broader source: Energy.gov [DOE]

    The National Laboratory Impact Initiative supports the relationship between the Office of Energy Efficiency & Renewable Energy and the national laboratory enterprise.  The national laboratories...

  10. Salt Waste Processing Initiatives

    Office of Environmental Management (EM)

    Patricia Suggs Salt Processing Team Lead Assistant Manager for Waste Disposition Project Office of Environmental Management Savannah River Site Salt Waste Processing Initiatives 2 ...

  11. EETD Special Initiatives

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

    Slides - Initiatives program EETD Special Initiatives  Develop Partnerships with Industry, Government, and Stakeholders that:  Leverage our expertise and resources to address barriers to technology development and deployment  Establish scalable proving grounds for demonstration of emerging technologies Leveraging Our Expertise  Develop focused Consortiums with Industry, Stakeholder membership  Institutional efforts that addresses a key systemic challenge  Focal point for

  12. Method and apparatus of prefetching streams of varying prefetch depth

    DOE Patents [OSTI]

    Gara, Alan; Ohmacht, Martin; Salapura, Valentina; Sugavanam, Krishnan; Hoenicke, Dirk

    2012-01-24

    Method and apparatus of prefetching streams of varying prefetch depth dynamically changes the depth of prefetching so that the number of multiple streams as well as the hit rate of a single stream are optimized. The method and apparatus in one aspect monitor a plurality of load requests from a processing unit for data in a prefetch buffer, determine an access pattern associated with the plurality of load requests and adjust a prefetch depth according to the access pattern.

  13. Advanced Technology Vehicle Lab Benchmarking - Level 2 (in-depth) |

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

    Department of Energy 2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon vss031_rask_2012_o.pdf More Documents & Publications Advanced Technology Vehicle Lab Benchmarking - Level 2 (in-depth) Advanced Technology Vehicle Lab Benchmarking - Level 2 (in-depth) Vehicle Technologies Office Merit Review 2014: Advanced Technology Vehicle Lab Benchmarking - Level 2 (in-depth)

  14. Large Eddy Simulations of Combustor Liner Flows | Argonne Leadership...

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

    zone and turbine, current simulations will use wall-modeled large-eddy simulations (LES) to analyze flow in single and multi-cup combustors. An in-depth study of the detailed...

  15. ARM - Evaluation Product - MicroPulse LIDAR Cloud Optical Depth...

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

    from the MPLNOR (Micro Pulse Lidar Normalized Backscatter) and radiosonde thermodynamic profiles. The optical depth retrieval is derived following Comstock et al. (2001),...

  16. Bouguer gravity anomalies, depth to bedrock, and shallow temperature...

    Open Energy Info (EERE)

    Bouguer gravity anomalies, depth to bedrock, and shallow temperature in the Humboldt House geothermal area, Pershing County, Nevada Jump to: navigation, search OpenEI Reference...

  17. Understanding Fault Characteristics And Sediment Depth For Geothermal...

    Open Energy Info (EERE)

    Understanding Fault Characteristics And Sediment Depth For Geothermal Exploration Using 3D Gravity Inversion In Walker Valley, Nevada Jump to: navigation, search OpenEI Reference...

  18. Advanced Technology Vehicle Lab Benchmarking - Level 2 (in-depth...

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

    More Documents & Publications Advanced Technology Vehicle Lab Benchmarking - Level 2 (in-depth) Data Collection for Improved Cold Temperature Thermal Modeling Advanced Technology ...

  19. A Comparison of Cirrus Cloud Visible Optical Depth Derived from...

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

    Comparison of Cirrus Cloud Visible Optical Depth Derived from Lidar Lo, Chaomei Pacific Northwest National Laboratory Comstock, Jennifer Pacific Northwest National Laboratory...

  20. Defense-in-Depth, How Department of Energy Implements Radiation...

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

    (DOE) has adopted an integrated protection system for the safety of radioactive waste ... The integrated protectionsystem is implemented using a defense-in-depth approach taking ...

  1. Control Systems Cyber Security: Defense in Depth Strategies ...

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

    Cyber Security: Defense in Depth Strategies Control Systems Cyber Security: Defense in ... strategies for organizations that use control system networks while maintaining a ...

  2. A preliminary assessment of the effects of groundwater flow on closed-loop ground source heat pump systems

    SciTech Connect (OSTI)

    Chiasson, A.D.; Rees, S.J.; Spitler, J.D.

    2000-07-01

    A preliminary study has been made of the effects of groundwater flow on the heat transfer characteristics of vertical closed-loop heat exchangers and the ability of current design and in-situ thermal conductivity measurement techniques to deal with these effects. It is shown that an initial assessment of the significance of groundwater flow can be made by examining the Peclet number of the flow. A finite-element numerical groundwater flow and heat transfer model has been used to simulate the effects of groundwater flow on a single closed-loop heat exchanger in various geologic materials. These simulations show that advection of heat by groundwater flow significantly enhances heat transfer in geologic materials with high hydraulic conductivity, such as sands, gravels, and rocks exhibiting fractures and solution channels. Simulation data were also used to derive effective thermal conductivities with an in-situ thermal conductivity estimation procedure. These data were used to design borehole fields of different depths for a small commercial building. The performance of these borehole field designs was investigated by simulating each borehole field using the pre-calculated building loads over a ten-year period. Results of these simulations, in terms of the minimum and peak loop temperatures, were used to examine the ability of current design methods to produce workable and efficient designs under a range of groundwater flow conditions.

  3. World Consensus Initiative 2004

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

    Consensus Initiative 2004 Texas A&M University Meeting 12-16 February 2005 The study of ... Catania Meeting * Smith College Meeting * Texas A&M University Meeting (12-16 February ...

  4. Green Button Initiative Growing

    Broader source: Energy.gov [DOE]

    The Green Button initiative, which is the common-sense idea that electricity customers should be able to securely download their own energy usage information from their utility websites, is continuing to gain traction across the country.

  5. Strategic Initiatives Work Group

    Broader source: Energy.gov [DOE]

    The Work Group, comprised of members representing DOE, contractor and worker representatives, provides a forum for information sharing; data collection and analysis; as well as, identifying best practices and initiatives to enhance safety performance and safety culture across the Complex.

  6. Flow battery

    DOE Patents [OSTI]

    Lipka, Stephen M.; Swartz, Christopher R.

    2016-02-23

    An electrolyte system for a flow battery has an anolyte including [Fe(CN).sub.6].sup.3- and [Fe(CN).sub.6].sup.4- and a catholyte including Fe.sup.2+ and Fe.sup.3+.

  7. Initiatives | The Ames Laboratory

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

    Initiatives Initiatives The Office of Energy Policy & Systems Analysis (EPSA) responds to the most pressing domestic energy challenges, delivering unbiased energy analysis to the Department of Energy's leadership on existing and prospective energy-related policies, focusing in part on integrative analysis of energy systems. EPSA also includes the Secretariat of the Quadrennial Energy Review, which has primary responsibility for supporting the White House interagency process and providing to

  8. Initiatives | Department of Energy

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

    Initiatives Initiatives The Office of Energy Policy & Systems Analysis (EPSA) responds to the most pressing domestic energy challenges, delivering unbiased energy analysis to the Department of Energy's leadership on existing and prospective energy-related policies, focusing in part on integrative analysis of energy systems. EPSA also includes the Secretariat of the Quadrennial Energy Review, which has primary responsibility for supporting the White House interagency process and providing to

  9. Advances in Modeling Exploding Bridgewire Initiation

    SciTech Connect (OSTI)

    Hrousis, C A; Christensen, J S

    2010-03-10

    There is great interest in applying magnetohydrodynamic (MHD) simulation techniques to the designs of electrical high explosive (HE) initiators, for the purpose of better understanding a design's sensitivities, optimizing its performance, and/or predicting its useful lifetime. Two MHD-capable LLNL codes, CALE and ALE3D, are being used to simulate the process of ohmic heating, vaporization, and plasma formation in exploding bridgewires (EBW). Initiation of the HE is simulated using Ignition & Growth reactive flow models. 1-D, 2-D and 3-D models have been constructed and studied. The models provide some intuitive explanation of the initiation process and are useful for evaluating the potential impact of identified aging mechanisms (such as the growth of intermetallic compounds or powder sintering). The end product of this work is a simulation capability for evaluating margin in proposed, modified or aged initiation system designs.

  10. Electrode immersion depth determination and control in electroslag remelting furnace

    DOE Patents [OSTI]

    Melgaard, David K.; Beaman, Joseph J.; Shelmidine, Gregory J.

    2007-02-20

    An apparatus and method for controlling an electroslag remelting furnace comprising adjusting electrode drive speed by an amount proportional to a difference between a metric of electrode immersion and a set point, monitoring impedance or voltage, and calculating the metric of electrode immersion depth based upon a predetermined characterization of electrode immersion depth as a function of impedance or voltage.

  11. Detecting Fractures Using Technology at High Temperatures and Depths -

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

    Geothermal Ultrasonic Fracture Imager (GUFI); 2010 Geothermal Technology Program Peer Review Report | Department of Energy Detecting Fractures Using Technology at High Temperatures and Depths - Geothermal Ultrasonic Fracture Imager (GUFI); 2010 Geothermal Technology Program Peer Review Report Detecting Fractures Using Technology at High Temperatures and Depths - Geothermal Ultrasonic Fracture Imager (GUFI); 2010 Geothermal Technology Program Peer Review Report DOE 2010 Geothermal

  12. Shear dispersion in dense granular flows

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

    Christov, Ivan C.; Stone, Howard A.

    2014-04-18

    We formulate and solve a model problem of dispersion of dense granular materials in rapid shear flow down an incline. The effective dispersivity of the depth-averaged concentration of the dispersing powder is shown to vary as the Péclet number squared, as in classical Taylor–Aris dispersion of molecular solutes. An extension to generic shear profiles is presented, and possible applications to industrial and geological granular flows are noted.

  13. Clean Coal Power Initiative

    SciTech Connect (OSTI)

    Doug Bartlett; Rob James; John McDermott; Neel Parikh; Sanjay Patnaik; Camilla Podowski

    2006-03-31

    This report is the fifth quarterly Technical Progress Report submitted by NeuCo, Incorporated, under Award Identification Number, DE-FC26-04NT41768. This award is part of the Clean Coal Power Initiative (''CCPI''), the ten-year, $2B initiative to demonstrate new clean coal technologies in the field. This report is one of the required reports listed in Attachment B Federal Assistance Reporting Checklist, part of the Cooperative Agreement. The report covers the award period January 1, 2006 - March 31, 2006 and NeuCo's efforts within design, development, and deployment of on-line optimization systems during that period.

  14. RCRA facility stabilization initiative

    SciTech Connect (OSTI)

    Not Available

    1995-02-01

    The RCRA Facility Stabilization Initiative was developed as a means of implementing the Corrective Action Program`s management goals recommended by the RIS for stabilizing actual or imminent releases from solid waste management units that threaten human health and the environment. The overall goal of stabilization is to, as situations warrant, control or abate threats to human health and/or the environment from releases at RCRA facilities, and/or to prevent or minimize the further spread of contamination while long-term remedies are pursued. The Stabilization initiative is a management philosophy and should not be confused with stabilization technologies.

  15. 2007 Initial Allocation Awards

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

    7 Awards 2007 Initial Allocation Awards The following table lists the initial allocation awards for NERSC for the 2007 allocation year (Jan 9, 2007 through Jan 7, 2008). The list is in alphabetical order by the last name of the Principal Investigator. Note - Letters following the repository name indicate the following: 'I' DOE ASCR INCITE award 'S' NERSC Startup award A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Principal Site Request Repo SP HPSS Project Title Investigator Id Hours SRUs

  16. Effect of Ion Skin Depth on Relaxation of Merging Spheromaks to a Field-Reversed Configuration

    SciTech Connect (OSTI)

    Kawamori, Eiichirou; Ono, Yasushi

    2005-08-19

    The effect of ion skin depth on the relaxation of merging spheromaks to a field-reversed configuration (FRC) is studied experimentally for a wide range of size parameter S* (ratio of minor radius to ion skin depth) from 1 to 7. The two merging spheromaks are observed to relax to an FRC or a new spheromak depending on whether the initial poloidal eigenvalue is smaller or larger than a threshold value. The bifurcation value is found to increase with decreasing size parameter S{sup *}, indicating that the low-S* condition provides a wide bifurcated range of relaxation to an FRC. The FRC-style relaxation under the low-S* conditions was accompanied by the suppression of the low-n modes (n is the toroidal mode number) activity. The fast rotations of the modes were followed by suppression of the low-n modes.

  17. Monolithic exploding foil initiator

    DOE Patents [OSTI]

    Welle, Eric J; Vianco, Paul T; Headley, Paul S; Jarrell, Jason A; Garrity, J. Emmett; Shelton, Keegan P; Marley, Stephen K

    2012-10-23

    A monolithic exploding foil initiator (EFI) or slapper detonator and the method for making the monolithic EFI wherein the exploding bridge and the dielectric from which the flyer will be generated are integrated directly onto the header. In some embodiments, the barrel is directly integrated directly onto the header.

  18. Clean Energy Manufacturing Initiative

    SciTech Connect (OSTI)

    2013-04-01

    The initiative will strategically focus and rally EEREs clean energy technology offices and Advanced Manufacturing Office around the urgent competitive opportunity for the United States to be the leader in the clean energy manufacturing industries and jobs of today and tomorrow.

  19. National Lab Impact Initiative

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

    Lab Impact Initiative Energy Efficiency & Renewable Energy EERE National Lab Impact Summit Driving American Energy Innovation and Competitiveness May 4, 2016 | 7:30 am-7:00 pm National Renewable Energy Laboratory Golden, Colorado EERE National Lab Impact Summit // i ` http://www.cyclotronroad.org/home TABLE OF CONTENTS Department of Energy National Lab Abbreviations .........................................................................................................ii Welcome Letter

  20. Flow cytometer

    DOE Patents [OSTI]

    van den Engh, Ger

    1995-01-01

    A Faraday cage enclosing the flow chamber of a cytometer and ground planes associated with each field deflection plate in concert therewith inhibit electric fields from varying the charge on designated events/droplets and further concentrates and increases forces applied to a charged event passing therethrough for accurate focus thereof while concomitantly inhibiting a potential shock hazard.

  1. Flow cytometer

    DOE Patents [OSTI]

    Van den Engh, G.

    1995-11-07

    A Faraday cage is described which encloses the flow chamber of a cytometer. Ground planes associated with each field deflection plate inhibit electric fields from varying the charge on designated events/droplets and further concentrates. They also increase forces applied to a passing charged event for accurate focus while concomitantly inhibiting a potential shock hazard. 4 figs.

  2. Aerosol Optical Depth Value-Added Product Report

    SciTech Connect (OSTI)

    Koontz, A; Hodges, G; Barnard, J; Flynn, C; Michalsky, J

    2013-03-17

    This document describes the process applied to retrieve aerosol optical depth (AOD) from multifilter rotating shadowband radiometers (MFRSR) and normal incidence multifilter radiometers (NIMFR) operated at the ARM Climate Research Facility’s ground-based facilities.

  3. Confocal volume in laser Raman microscopy depth profiling

    SciTech Connect (OSTI)

    Maruyama, Yutaka; Kanematsu, Wataru

    2011-11-15

    To clarify the degradation of confocality in laser Raman microscopy depth profiling (optical sectioning) and the influence of pinhole filtering on it, we investigate the confocal volume in detail based on Gaussian beam optics and scalar wave optics. Theoretical depth profiles of a homogeneous transparent sample for four different pinhole sizes, which are computed using the measured incident beam waist radius w{sub 0} and only a few optical system specific parameters such as a numerical aperture (NA) and a focal length, show a good agreement with the corresponding measured depth profiles. The computed confocal volume demonstrates that the pinhole size affects the actual probe depth as well as the axial resolution and the total intensity loss.

  4. Method and apparatus to measure the depth of skin burns

    DOE Patents [OSTI]

    Dickey, Fred M.; Holswade, Scott C.

    2002-01-01

    A new device for measuring the depth of surface tissue burns based on the rate at which the skin temperature responds to a sudden differential temperature stimulus. This technique can be performed without physical contact with the burned tissue. In one implementation, time-dependent surface temperature data is taken from subsequent frames of a video signal from an infrared-sensitive video camera. When a thermal transient is created, e.g., by turning off a heat lamp directed at the skin surface, the following time-dependent surface temperature data can be used to determine the skin burn depth. Imaging and non-imaging versions of this device can be implemented, thereby enabling laboratory-quality skin burn depth imagers for hospitals as well as hand-held skin burn depth sensors the size of a small pocket flashlight for field use and triage.

  5. Biogenic Aerosols - Effects on Climate and Clouds. Cloud Optical Depth

    Office of Scientific and Technical Information (OSTI)

    (COD) Sensor Three-Waveband Spectrally-Agile Technique (TWST) Field Campaign Report (Technical Report) | SciTech Connect Biogenic Aerosols - Effects on Climate and Clouds. Cloud Optical Depth (COD) Sensor Three-Waveband Spectrally-Agile Technique (TWST) Field Campaign Report Citation Details In-Document Search Title: Biogenic Aerosols - Effects on Climate and Clouds. Cloud Optical Depth (COD) Sensor Three-Waveband Spectrally-Agile Technique (TWST) Field Campaign Report This report describes

  6. Hyperspectral aerosol optical depths from TCAP flights (Journal Article) |

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Journal Article: Hyperspectral aerosol optical depths from TCAP flights Citation Details In-Document Search Title: Hyperspectral aerosol optical depths from TCAP flights Authors: Shinozuka Y. ; Wagener R. ; Johnson, R. R. ; Flynn, C. J. ; Russell, P. B. ; Schmid, B. ; Redemann, J. ; Dunagan, S. E. ; Kluzek, C. D. ; Hubbe, J. M. ; Segal-Rosenheimer, M. ; Livingston, J. M. ; Eck, T. F. ; Gregory, L. ; Chand, D. ; Berg, L. K. ; Rogers, R. R. ; Ferrare, R. A. ; Hair, J. W. ;

  7. Assessing the Radiative Impact of Clouds of Low Optical Depth

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

    the Radiative Impact of Clouds of Low Optical Depth W. O'Hirok and P. Ricchiazzi Institute for Computational Earth System Science University of California Santa Barbara, California C. Gautier Department of Geography and Institute for Computational Earth System Science University of California Santa Barbara, California Introduction Analysis from the International Satellite Cloud Climatology Project (ISCCP) reveals that the global mean cloud optical depth is surprisingly low (i.e., τ = 3.8).

  8. Green Initiatives and Contracting

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

    GSA Is Now Training Contracting Officers In Green Purchasing Green Purchasing for the Federal Acquisition Work Force * introduction to the federal green purchasing program * assists learners with identifying green products * discusses factors that shape federal green purchasing initiatives https://cae.gsa.gov 2 "There's some challenges here" "Environmental Aisle" in the GSA Advantage electronic-purchasing website for federal buyers to find green products Environmental

  9. Pollinator Protection Initiative

    Broader source: Energy.gov [DOE]

    DOE’s pollinator protection initiative is based on the Presidential Memorandum, Creating a Federal Strategy to Promote the Health of Honey Bees and Other Pollinators, which established an inter-agency Pollinator Health Task Force to develop a national strategy to promote the health of bees, butterflies, other pollinating insects, and birds and bats. The Task Force, which included a DOE representative, issued the National Strategy to Promote the Health of Honey Bees and Other Pollinators in May 2015.

  10. OSM's reforestation initiative

    SciTech Connect (OSTI)

    Boyce, J.S.

    1999-07-01

    Implementation of the Surface Mining Control and Reclamation Act (SMCRA) has discouraged reforestation in some situations where reforestation would be desirable. OSM is engaged in an initiative to increase the amount of mined land reclaimed to forest where appropriate. The authors are seeking to determine those elements of the Federal/State regulator programs that discourage reforestation and find ways to offset these impacts. Potential factors militating against reforestation are identified and possible solutions are discussed.

  11. ARI Asset Revitalization Initiative

    Energy Savers [EERE]

    ( ARI ) Asset Revitalization Initiative Mission * Community * Reuse Highlights continue on Page 2 The Business Incubator Center Wins the NBIA Dinah Atkins Incubator of the Year Award april �, ���� - One of 7,000 incubators in the world and located on the Department of Energy's Grand Junction campus, The Business Incubator Center won the National Business Incubator Association Dinah Atkins Incubator of the Year award in the General and Special Focus category. For more information,

  12. Welding arc initiator

    DOE Patents [OSTI]

    Correy, Thomas B.

    1989-01-01

    An improved inert gas shielded tungsten arc welder is disclosed of the type wherein a tungsten electrode is shielded within a flowing inert gas, and, an arc, following ignition, burns between the energized tungsten electrode and a workpiece. The improvement comprises in combination with the tungsten electrode, a starting laser focused upon the tungsten electrode which to ignite the electrode heats a spot on the energized electrode sufficient for formation of a thermionic arc. Interference problems associated with high frequency starters are thus overcome.

  13. Welding arc initiator

    DOE Patents [OSTI]

    Correy, T.B.

    1989-05-09

    An improved inert gas shielded tungsten arc welder is disclosed of the type wherein a tungsten electrode is shielded within a flowing inert gas, and, an arc, following ignition, burns between the energized tungsten electrode and a workpiece. The improvement comprises in combination with the tungsten electrode, a starting laser focused upon the tungsten electrode which to ignite the electrode heats a spot on the energized electrode sufficient for formation of a thermionic arc. Interference problems associated with high frequency starters are thus overcome. 3 figs.

  14. Gulf Petro Initiative

    SciTech Connect (OSTI)

    Fathi Boukadi

    2011-02-05

    In this report, technologies for petroleum production and exploration enhancement in deepwater and mature fields are developed through basic and applied research by: (1) Designing new fluids to efficiently drill deepwater wells that can not be cost-effectively drilled with current technologies. The new fluids will be heavy liquid foams that have low-density at shallow dept to avoid formation breakdown and high density at drilling depth to control formation pressure. The goal of this project is to provide industry with formulations of new fluids for reducing casing programs and thus well construction cost in deepwater development. (2) Studying the effects of flue gas/CO{sub 2} huff n puff on incremental oil recovery in Louisiana oilfields bearing light oil. An artificial neural network (ANN) model will be developed and used to map recovery efficiencies for candidate reservoirs in Louisiana. (3) Arriving at a quantitative understanding for the three-dimensional controlled-source electromagnetic (CSEM) geophysical response of typical Gulf of Mexico hydrocarbon reservoirs. We will seek to make available tools for the qualitative, rapid interpretation of marine CSEM signatures, and tools for efficient, three-dimensional subsurface conductivity modeling.

  15. Through bulkhead initiator studies

    SciTech Connect (OSTI)

    Begeal, D.R.

    1997-03-01

    This report describes recent work done to demonstrate feasibility of a fail-safe Through Bulkhead Initiator with minimum dimensions and suitable for use in cyclical thermal environments. Much of the ground work for a fail-safe TBI was previously done by A.C. Schwartz. This study is an expansion of Schwartz`s work to evaluate devices with bulkheads of 304 stainless steel and Inconel 718; explosive donors of PETN, BNCP, and a 0.005 inch thick steel flying plate donor traveling at 2.6 mm/{micro}s; and explosive acceptors of PETN and BNCP. Bulkhead thickness were evaluated in the range of 0.040 to 0.180 inch. The explosive acceptors initiated a small HMX pellet to drive a 0.005 inch thick steel flying plate, and VISAR histories of the HMX-driven flying plates were the measure of acceptable performance. A companion set of samples used a PMMA acceptor to measure the particle velocities at the bulkhead/PMMA interface with VISAR. These data were used to compute the input pressure to the acceptor explosives in an attempt to measure initiation threshold. Unfortunately, the range of bulkhead thicknesses tested did not give any failures, thus the threshold was not determined. It was found that either explosive or the flying plate would perform as a TBI in the bulkhead thickness range tested. The optimum TBI is about 0.060 inches thick, and steel bulkheads seem to be more structurally sound than those made of Inconel. That is, cross section views of the Inconel bulkheads showed it to be more prone to stress cracking than was the 304 stainless steel. Both PETN and BNCP showed good performance when tested at {minus}65 F following thermal cycling of {minus}65 F to +165 F. Analysis of the TBI function times showed that BNCP acceptor explosives were undergoing the classical deflagration to detonation process. The PETN acceptors were undergoing prompt detonation.

  16. 2006 Initial Allocation Awards

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

    6 Awards 2006 Initial Allocation Awards The following table lists the allocation awards for NERSC for the 2006 allocation year (Dec 1, 2005 through Jan 8, 2007). The list is in alphabetical order by the last name of the Principal Investigator. Note - Letters following the repository name indicate the following: 'I' DOE ASCR INCITE award 'S' NERSC Startup award A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Principal Site Request Repo SP HPSS Project Title Investigator Id Hours SRUs Agarwal,

  17. 2008 Initial Allocation Awards

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

    8 Awards 2008 Initial Allocation Awards The following table lists the allocation awards for NERSC for the 2008 allocation year (Jan 8, 2008 through Jan 12, 2009). The list is in alphabetical order by the last name of the Principal Investigator. Note - Letters following the repository name indicate the following: 'I' DOE ASCR INCITE award 'S' NERSC Startup award A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Principal Site Request Repo SP HPSS Project Title Investigator Id Hours SRUs Adams,

  18. Hanford tanks initiative plan

    SciTech Connect (OSTI)

    McKinney, K.E.

    1997-07-01

    Abstract: The Hanford Tanks Initiative (HTI) is a five-year project resulting from the technical and financial partnership of the U.S. Department of Energy`s Office of Waste Management (EM-30) and Office of Science and Technology Development (EM-50). The HTI project accelerates activities to gain key technical, cost performance, and regulatory information on two high-level waste tanks. The HTI will provide a basis for design and regulatory decisions affecting the remainder of the Tank Waste Remediation System`s tank waste retrieval Program.

  19. Breckinridge Project, initial effort

    SciTech Connect (OSTI)

    1982-01-01

    Report IV, Volume 4, provides descriptions, data, and drawings pertaining to the Gas Plant (Plant 7). The Gas Plant (Plant 7) receives feed gas streams from various process plants. The Gas Plant compresses, treats, and fractionates the gas streams into intermediate and final products. The following information is included for the plant described in this volume: a description of the plant's process design, including the utility balance, catalysts and chemicals usage, and process flow diagrams; an equipment list, including item numbers and descriptions; data sheets and sketches for major plant components; and pertinent engineering drawings. An appendix contains: an overall site plan showing the locations of all plants; and the symbols and legend for the piping and instrument diagrams included in this volume.

  20. Breckinridge Project, initial effort

    SciTech Connect (OSTI)

    1982-01-01

    Report IV, Volume 3, provides descriptions, data, and drawings pertaining to H-COAL Recycle Slurry Preparation (Plant 5), H-COAL Recycle Hydrogen Compression (Plant 6), and H-COAL Distillate Separation (Plant 17). H-COAL Recycle Slurry Preparation (Plant 5) receives a slurry stream from H-COAL Primary Separation (Plant 4), and then pumps the slurry through hydrocyclones, producing two slurry streams. One, dilute in solids is recycled back to the reactor. The other, concentrated in solids, is further processed to recover liquid products and is then transferred to Gasification and Purification (Plant 12). H-COAL Recycle Hydrogen Compression (Plant 6) compresses and recycles back to the reactor system hydrogen-rich vapor from H-COAL Primary Separation (Plant 4). This recycling maintains a hydrogen partial pressure and gas flow through the reactor vessel. H-COAL Distillate Separation (Plant 17) processes products from H-COAL Primary Separation (Plant 4) and H-COAL Recycle Slurry Preparation to produce light naphtha for the Gas Plant (Plant 7), middle and heavy distillates for tank farms, and heavy naphtha for Naphtha Hydrotreating and Reforming (Plant 18). The following information is included for each of the three plants: a description of the plant's process design, including the utility balance, heat and material balance (if applicable), and a process flow diagram; an equipment list, including item numbers and descriptions; data sheets and sketches for major plant components; and pertinent engineering drawings. An appendix contains: an overall site plan showing the locations of all plants; and the symbols and legend for the piping and instrument diagrams included in this volume.

  1. Initiatives for proliferation prevention

    SciTech Connect (OSTI)

    1997-04-01

    Preventing the proliferation of weapons of mass destruction is a central part of US national security policy. A principal instrument of the Department of Energy`s (DOE`s) program for securing weapons of mass destruction technology and expertise and removing incentives for scientists, engineers and technicians in the newly independent states (NIS) of the former Soviet Union to go to rogue countries or assist terrorist groups is the Initiatives for Proliferation Prevention (IPP). IPP was initiated pursuant to the 1994 Foreign Operations Appropriations Act. IPP is a nonproliferation program with a commercialization strategy. IPP seeks to enhance US national security and to achieve nonproliferation objectives by engaging scientists, engineers and technicians from former NIS weapons institutes; redirecting their activities in cooperatively-developed, commercially viable non-weapons related projects. These projects lead to commercial and economic benefits for both the NIS and the US IPP projects are funded in Russian, Ukraine, Kazakhstan and Belarus. This booklet offers an overview of the IPP program as well as a sampling of some of the projects which are currently underway.

  2. Precision flyer initiator

    DOE Patents [OSTI]

    Frank, Alan M.; Lee, Ronald S.

    1998-01-01

    A precision flyer initiator forms a substantially spherical detonation wave in a high explosive (HE) pellet. An explosive driver, such as a detonating cord, a wire bridge circuit or a small explosive, is detonated. A flyer material is sandwiched between the explosive driver and an end of a barrel that contains an inner channel. A projectile or "flyer" is sheared from the flyer material by the force of the explosive driver and projected through the inner channel. The flyer than strikes the HE pellet, which is supported above a second end of the barrel by a spacer ring. A gap or shock decoupling material delays the shock wave in the barrel from predetonating the HE pellet before the flyer. A spherical detonation wave is formed in the HE pellet. Thus, a shock wave traveling through the barrel fails to reach the HE pellet before the flyer strikes the HE pellet. The precision flyer initiator can be used in mining devices, well-drilling devices and anti-tank devices.

  3. Precision flyer initiator

    DOE Patents [OSTI]

    Frank, A.M.; Lee, R.S.

    1998-05-26

    A precision flyer initiator forms a substantially spherical detonation wave in a high explosive (HE) pellet. An explosive driver, such as a detonating cord, a wire bridge circuit or a small explosive, is detonated. A flyer material is sandwiched between the explosive driver and an end of a barrel that contains an inner channel. A projectile or ``flyer`` is sheared from the flyer material by the force of the explosive driver and projected through the inner channel. The flyer than strikes the HE pellet, which is supported above a second end of the barrel by a spacer ring. A gap or shock decoupling material delays the shock wave in the barrel from predetonating the HE pellet before the flyer. A spherical detonation wave is formed in the HE pellet. Thus, a shock wave traveling through the barrel fails to reach the HE pellet before the flyer strikes the HE pellet. The precision flyer initiator can be used in mining devices, well-drilling devices and anti-tank devices. 10 figs.

  4. Measuring depth profiles of residual stress with Raman spectroscopy

    SciTech Connect (OSTI)

    Enloe, W.S.; Sparks, R.G.; Paesler, M.A.

    1988-12-01

    Knowledge of the variation of residual stress is a very important factor in understanding the properties of machined surfaces. The nature of the residual stress can determine a part`s susceptibility to wear deformation, and cracking. Raman spectroscopy is known to be a very useful technique for measuring residual stress in many materials. These measurements are routinely made with a lateral resolution of 1{mu}m and an accuracy of 0.1 kbar. The variation of stress with depth; however, has not received much attention in the past. A novel technique has been developed that allows quantitative measurement of the variation of the residual stress with depth with an accuracy of 10nm in the z direction. Qualitative techniques for determining whether the stress is varying with depth are presented. It is also demonstrated that when the stress is changing over the volume sampled, errors can be introduced if the variation of the stress with depth is ignored. Computer aided data analysis is used to determine the depth dependence of the residual stress.

  5. Breckinridge Project, initial effort

    SciTech Connect (OSTI)

    None, None

    1982-09-01

    Report III, Volume 1 contains those specifications numbered A through J, as follows: General Specifications (A); Specifications for Pressure Vessels (C); Specifications for Tanks (D); Specifications for Exchangers (E); Specifications for Fired Heaters (F); Specifications for Pumps and Drivers (G); and Specifications for Instrumentation (J). The standard specifications of Bechtel Petroleum Incorporated have been amended as necessary to reflect the specific requirements of the Breckinridge Project, and the more stringent specifications of Ashland Synthetic Fuels, Inc. These standard specifications are available to the Initial Effort (Phase Zero) work performed by all contractors and subcontractors. Report III, Volume 1 also contains the unique specifications prepared for Plants 8, 15, and 27. These specifications will be substantially reviewed during Phase I of the project, and modified as necessary for use during the engineering, procurement, and construction of this project.

  6. Instrumented Pipeline Initiative

    SciTech Connect (OSTI)

    Thomas Piro; Michael Ream

    2010-07-31

    This report summarizes technical progress achieved during the cooperative agreement between Concurrent Technologies Corporation (CTC) and U.S. Department of Energy to address the need for a for low-cost monitoring and inspection sensor system as identified in the Department of Energy (DOE) National Gas Infrastructure Research & Development (R&D) Delivery Reliability Program Roadmap.. The Instrumented Pipeline Initiative (IPI) achieved the objective by researching technologies for the monitoring of pipeline delivery integrity, through a ubiquitous network of sensors and controllers to detect and diagnose incipient defects, leaks, and failures. This report is organized by tasks as detailed in the Statement of Project Objectives (SOPO). The sections all state the objective and approach before detailing results of work.

  7. Gulf of Mexico Proved Reserves By Water Depth, 2009

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

    Gulf of Mexico Proved Reserves and Production by Water Depth, 2009 1 Gulf of Mexico Proved Reserves and Production by Water Depth The Gulf of Mexico Federal Offshore region (GOM Fed) has long been one of the Nation's principal sources of proved reserves. At the end of 2009, the GOM Fed accounted for close to one-fifth of oil proved reserves (second only to Texas) and just over four percent of natural gas proved reserves (the country's seventh largest reporting region). 1 Natural gas proved

  8. Breckinridge Project, initial effort

    SciTech Connect (OSTI)

    1982-01-01

    Report IV, Volume 6 provides descriptions, data, and drawings pertaining to Gasification and Purification (Plant 12). Gasification and Purification (Plant 12) produces makeup hydrogen for H-COAL Preheating and Reaction (Plant 3), and produces a medium Btu fuel gas for consumption in fired heaters. The following information is included: a description of the plant's process design, including the utility balance, catalysts and chemicals usage, and a process flow diagram; an equipment list, including item numbers and descriptions; data sheets and sketches for major plant components; and pertinent engineering drawings. An appendix contains: an overall site plan showing the locations of all plants; and the symbols and legend for the piping and instrument diagrams included in this volume. Gasification and Purification (Plant 12) utilizes process technology from three licensors: gasification of vacuum bottoms using the Texaco process, shift conversion using the Haldor Topsoe process, and purification of fuel gas and shifted gas using the Allied Chemical Selexol process. This licensed technology is proprietary in nature. As a result, this volume does not contain full disclosure of these processes although a maximum of information has been presented consistent with the confidentiality requirements. Where data appears incomplete in this volume, it is due to the above described limitations. Full data concerning this plant are available for DOE review at the Houston offices of Bechtel Petroleum, Inc.

  9. Breckinridge Project, initial effort

    SciTech Connect (OSTI)

    1982-01-01

    Report IV, Volume 5, provides descriptions, data, and drawings pertaining to Cryogenic Hydrogen Purification (Plant 8), Sour Water Treating (Plant 9), and the Sulfur Plant (Plant 10). Cryogenic Hydrogen Purification (Plant 8) purifies the purge gas stream from the Gas Plant (Plant 7, described in Report IV, Volume 4) to a 93% purity hydrogen product. Sour Water Treating (Plant 9) removes free ammonia and acid gases from sour water and separates them to recover a high quality anhydrous ammonia product. The Sulfur Plant (Plant 10) recovers, as a saleable liquid product, approximately 95% of the sulfur in feed streams from the Gas Plant (Plant 7, described in Report IV, Volume 4), Sour Water Treating (Plant 9), Gasification and Purification (Plant 12, described in Report IV, Volume 6), and Stack Gas Scrubbing (Plant 35, described in Report V, Volume 3). The following information is included for each of the three plants described in this volume: a description of the plant's process design, including the utility balance, catalysts and chemicals usage, and a process flow diagram; an equipment list, including item numbers and descriptions; data sheets and sketches for major plant components; and pertinent engineering drawings. An appendix contains: an overall site plan showing the locations of all plants; and the symbols and legend for the piping and instrument diagrams included in this volume.

  10. MONTANA PALLADIUM RESEARCH INITIATIVE

    SciTech Connect (OSTI)

    Peters, John McCloskey, Jay Douglas, Trevor Young, Mark Snyder, Stuart Gurney, Brian

    2012-05-09

    Project Objective: The overarching objective of the Montana Palladium Research Initiative is to perform scientific research on the properties and uses of palladium in the context of the U.S. Department of Energy'™s Hydrogen, Fuel Cells and Infrastructure Technologies Program. The purpose of the research will be to explore possible palladium as an alternative to platinum in hydrogen-economy applications. To achieve this objective, the Initiatives activities will focus on several cutting-edge research approaches across a range of disciplines, including metallurgy, biomimetics, instrumentation development, and systems analysis. Background: Platinum-group elements (PGEs) play significant roles in processing hydrogen, an element that shows high potential to address this need in the U.S. and the world for inexpensive, reliable, clean energy. Platinum, however, is a very expensive component of current and planned systems, so less-expensive alternatives that have similar physical properties are being sought. To this end, several tasks have been defined under the rubric of the Montana Palladium Research Iniative. This broad swath of activities will allow progress on several fronts. The membrane-related activities of Task 1 employs state-of-the-art and leading-edge technologies to develop new, ceramic-substrate metallic membranes for the production of high-purity hydrogen, and develop techniques for the production of thin, defect-free platinum group element catalytic membranes for energy production and pollution control. The biomimetic work in Task 2 explores the use of substrate-attached hydrogen-producing enzymes and the encapsulation of palladium in virion-based protein coats to determine their utility for distributed hydrogen production. Task 3 work involves developing laser-induced breakdown spectroscopy (LIBS) as a real-time, in situ diagnostic technique to characterize PGEs nanoparticles for process monitoring and control. The systems engineering work in task 4 will determine how fuel cells ”taken as systems behave over periods of time that should show how their reformers and other subsystems deteriorate with time.

  11. Shock Initiation of Damaged Explosives

    SciTech Connect (OSTI)

    Chidester, S K; Vandersall, K S; Tarver, C M

    2009-10-22

    Explosive and propellant charges are subjected to various mechanical and thermal insults that can increase their sensitivity over the course of their lifetimes. To quantify this effect, shock initiation experiments were performed on mechanically and thermally damaged LX-04 (85% HMX, 15% Viton by weight) and PBX 9502 (95% TATB, 5% Kel-F by weight) to obtain in-situ manganin pressure gauge data and run distances to detonation at various shock pressures. We report the behavior of the HMX-based explosive LX-04 that was damaged mechanically by applying a compressive load of 600 psi for 20,000 cycles, thus creating many small narrow cracks, or by cutting wedge shaped parts that were then loosely reassembled, thus creating a few large cracks. The thermally damaged LX-04 charges were heated to 190 C for long enough for the beta to delta solid - solid phase transition to occur, and then cooled to ambient temperature. Mechanically damaged LX-04 exhibited only slightly increased shock sensitivity, while thermally damaged LX-04 was much more shock sensitive. Similarly, the insensitive explosive PBX 9502 was mechanically damaged using the same two techniques. Since PBX 9502 does not undergo a solid - solid phase transition but does undergo irreversible or 'rachet' growth when thermally cycled, thermal damage to PBX 9502 was induced by this procedure. As for LX-04, the thermally damaged PBX 9502 demonstrated a greater shock sensitivity than mechanically damaged PBX 9502. The Ignition and Growth reactive flow model calculated the increased sensitivities by igniting more damaged LX-04 and PBX 9502 near the shock front based on the measured densities (porosities) of the damaged charges.

  12. Continuous Snow Depth, Intensive Site 1, Barrow, Alaska

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

    Bob Busey; Larry Hinzman; Vladimir Romanovsky; William Cable

    2014-11-06

    Continuous Snow depth data are being collected at several points within four intensive study areas in Barrow, Alaska. These data are being collected to better understand the energy dynamics above the active layer and permafrost. They complement in-situ snow and soil measurements at this location. The data could also be used as supporting measurements for other research and modeling activities.

  13. Advanced Technology Vehicle Lab Benchmarking - Level 2 (in-depth) |

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

    Department of Energy 1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon vss031_rask_2011_o.pdf More Documents & Publications Advanced Technology Vehicle Lab Benchmarking - Level 2 (in-depth) Data Collection for Improved Cold Temperature Thermal Modeling Advanced Technology Vehicle Benchmark and Assessment

  14. Continuous Snow Depth, Intensive Site 1, Barrow, Alaska

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

    Bob Busey; Larry Hinzman; Vladimir Romanovsky; William Cable

    Continuous Snow depth data are being collected at several points within four intensive study areas in Barrow, Alaska. These data are being collected to better understand the energy dynamics above the active layer and permafrost. They complement in-situ snow and soil measurements at this location. The data could also be used as supporting measurements for other research and modeling activities.

  15. Breckinridge Project, initial effort

    SciTech Connect (OSTI)

    1982-01-01

    Report V, Volume 1 provides descriptions, data, and drawings pertaining to Flare System (Plant 19), Tankage (Plant 20), Interconnecting Piping (Plant 21), River Facilities (Plant 22), Rail, Truck, Pipeline (Plant 23), and Electrical Distribution (Plant 30). Flare System (Plant 19) provides primary and auxiliary flare systems for safe collection and disposal of overpressure relief discharges, and operational and emergency venting of flammable vapors and liquids from the various processing plants and loading facilities. Tankage (Plant 20) provides storage for propane and heavier liquid hydrocarbon products, as well as for by-product ammonia, phenols, and liquid sulfur. Interconnecting Piping (Plant 21) includes the fuel gas blending and distribution system and the interconnecting process and utility piping between process plants and offsites. River Facilities (Plant 22) provides the loading of liquid products and by-products into barges for marine surface transportation, and the unloading of coal from barges. Rail, Truck, Pipeline (Plant 23) provides loading and unloading of products shipped by either rail or truck. Electrical Distribution (Plant 30) receives main utility power from the Big River Electric Corporation and distributes the power to the other plants. The following information is included for each of the six plants: a description of the plant's design, including the utility balance, catalysts and chemicals usage, and process flow diagrams, as applicable; an equipment list, including item numbers and descriptions; data sheets and sketches for major plant components; and pertinent engineering drawings. An appendix contains: an overall site plan showing the locations of all plants; and the symbols and legend for piping and instrument diagrams.

  16. GE funds initiative to support STEM initiatives in Oklahoma ...

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

    STEM Empowers OK: Initiative to enrich STEM education in Oklahoma On April 21, 2015, GE announced a grant to the state of Oklahoma to enhance STEM education initiatives. Jeff ...

  17. Heat flow and subsurface temperature distributions in central and western New York. Final report

    SciTech Connect (OSTI)

    Hodge, D.S.; Fromm, K.

    1984-01-01

    Initiation of a geothermal energy program in western and central New York requires knowledge of subsurface temperatures for targeting areas of potential resources. The temperature distribution in possible geothermal reservoirs, calculated from heat flow measurements and modeling techniques, shows that a large area of New York can be considered for exploitation of geothermal resources. Though the temperatures at currently accessible depths show the availability of only a low-temperature (less than 100/sup 0/C), direct-use resource, this can be considered as an alternative for the future energy needs of New York State. From analysis of bottom-hole-temperature data and direct heat flow measurements, estimates of temperatures in the Cambrian Sandstones provide the basis of the economic evaluation of the reservoir. This reservoir contains the extractable fluids needed for targeting a potential geothermal well site in the low-temperature geothermal target zone. In the northern section of the Appalachian basin, reservoir temperatures in the Cambrian are below 50/sup 0/C but may be over 80/sup 0/C in the deeper parts of the basin in southern New York State. Using a minimum of 50/sup 0/C as a useful reservoir temperature, temperatures in excess of this value are encountered in the Theresa Formation at depths in excess of 1300 meters. Considering a maximum depth for economical drilling to be 2500 meters with present technology, the 2500 meters to the Theresa (sea level datum) forms the lower limit of the geothermal resource. Temperatures in the range of 70/sup 0/C to 80/sup 0/C are predicted for the southern portion of New York State.

  18. Initial Radionuclide Inventories

    SciTech Connect (OSTI)

    H. Miller

    2004-09-19

    The purpose of this analysis is to provide an initial radionuclide inventory (in grams per waste package) and associated uncertainty distributions for use in the Total System Performance Assessment for the License Application (TSPA-LA) in support of the license application for the repository at Yucca Mountain, Nevada. This document is intended for use in postclosure analysis only. Bounding waste stream information and data were collected that capture probable limits. For commercially generated waste, this analysis considers alternative waste stream projections to bound the characteristics of wastes likely to be encountered using arrival scenarios that potentially impact the commercial spent nuclear fuel (CSNF) waste stream. For TSPA-LA, this radionuclide inventory analysis considers U.S. Department of Energy (DOE) high-level radioactive waste (DHLW) glass and two types of spent nuclear fuel (SNF): CSNF and DOE-owned (DSNF). These wastes are placed in two groups of waste packages: the CSNF waste package and the codisposal waste package (CDSP), which are designated to contain DHLW glass and DSNF, or DHLW glass only. The radionuclide inventory for naval SNF is provided separately in the classified ''Naval Nuclear Propulsion Program Technical Support Document'' for the License Application. As noted previously, the radionuclide inventory data presented here is intended only for TSPA-LA postclosure calculations. It is not applicable to preclosure safety calculations. Safe storage, transportation, and ultimate disposal of these wastes require safety analyses to support the design and licensing of repository equipment and facilities. These analyses will require radionuclide inventories to represent the radioactive source term that must be accommodated during handling, storage and disposition of these wastes. This analysis uses the best available information to identify the radionuclide inventory that is expected at the last year of last emplacement, currently identified as 2030 and 2033, depending on the type of waste. TSPA-LA uses the results of this analysis to decay the inventory to the year of repository closure projected for the year of 2060.

  19. Sustainable Forest Bioenergy Initiative

    SciTech Connect (OSTI)

    Breger, Dwayne; Rizzo, Rob

    2011-09-20

    In the state’s Electricity Restructuring Act of 1998, the Commonwealth of Massachusetts recognized the opportunity and strategic benefits to diversifying its electric generation capacity with renewable energy. Through this legislation, the Commonwealth established one of the nation’s first Renewable Energy Portfolio Standard (RPS) programs, mandating the increasing use of renewable resources in its energy mix. Bioenergy, meeting low emissions and advanced technology standards, was recognized as an eligible renewable energy technology. Stimulated by the state’s RPS program, several project development groups have been looking seriously at building large woody biomass generation units in western Massachusetts to utilize the woody biomass resource. As a direct result of this development, numerous stakeholders have raised concerns and have prompted the state to take a leadership position in pursuing a science based analysis of biomass impacts on forest and carbon emissions, and proceed through a rulemaking process to establish prudent policy to support biomass development which can contribute to the state’s carbon reduction commitments and maintain safeguards for forest sustainability. The Massachusetts Sustainable Forest Bioenergy Initiative (SFBI) was funded by the Department of Energy and started by the Department of Energy Resources before these contentious biomass issues were fully raised in the state, and continued throughout the substantive periods of this policy development. Thereby, while SFBI maintained its focus on the initially proposed Scope of Work, some aspects of this scope were expanded or realigned to meet the needs for groundbreaking research and policy development being advanced by DOER. SFBI provided DOER and the Commonwealth with a foundation of state specific information on biomass technology and the biomass industry and markets, the most comprehensive biomass fuel supply assessment for the region, the economic development impact associated with biomass usage, an understanding of forest management trends including harvesting and fuel processing methods, and the carbon profile of utilizing forest based woody biomass for the emerging biomass markets. Each of the tasks and subtasks have provided an increased level of understanding to support new directives, policies and adaptation of existing regulations within Massachusetts. The project has provided the essential information to allow state policymakers and regulators to address emerging markets, while ensuring forest sustainability and understanding the complex science on CO2 accounting and impacts as a result of biomass harvesting for power generation. The public at large and electricity ratepayers in Massachusetts will all benefit from the information garnered through this project. This is a result of the state’s interest to provide financial incentives to only biomass projects that demonstrate an acceptable carbon profile, an efficient use of the constrained supply of fuel, and the harvest of biomass to ensure forest sustainability. The goals of the Massachusetts Sustainable Forest Bioenergy Initiative as proposed in 2006 were identified as: increase the diversity of the Massachusetts energy mix through biomass; promote economic development in the rural economy through forest industry job creation; help fulfill the state’s energy and climate commitments under the Renewable Energy Portfolio Standard and Climate Protection Plan; assist the development of a biomass fuel supply infrastructure to support energy project demands; provide education and outreach to the public on the benefits and impacts of bioenergy; improve the theory and practice of sustainable forestry in the Commonwealth. Completed project activities summarized below will demonstrate the effectiveness of the project in meeting the above goals. In addition, as discussed above, Massachusetts DOER needed to make some modifications to its work plan and objectives during the term of this project due to changing public policy demands brought forth in the course of the public discourse on this topic. We found that some tasks needed to be adjusted to meet changed conditions. Shortly after the start of SFBI, DOER recognized that establishing demonstration plots within state owned lands was not possible as the state enacted a temporary freeze on all timber harvesting on state lands, to allow for the completion of an assessment of current impacts of this activity and time to develop prudent policies on land conservation. Even more significantly, the state’s energy and environmental Secretary asked DOER to place a “sustainability” criterion for biomass in the RPS regulations, and the passage of the landmark Global Warming Solutions Act in 2008 committed DOER to very carefully consider and assure that biomass energy supported by the RPS met carbon reduction thresholds aligned with the state’s reduction commitments. These needs led to some adjustment of the SFBI scope and objectives to meet the policy challenges. Most notably was the funding and commissioning of the report by the Manomet Center for Conservation Sciences which provided the sustainability and carbon impact framework necessary for DOER to move policy forward prudently. The “Manomet Study” has moved this emerging policy issue substantially forward, gained national and international significance, and provided a new look at how the forest sequesters carbon and the effect of the removal of growing stock for energy on future carbon sequestration and atmospheric flux. This activity provided information that supports the objectives of SFBI but to accommodate this work, several subtasks were combined and addressed within the framework of the Manomet research study. The expected outcomes of the SFBI include the development of biomass energy systems that support sustainable forest management, new investment in forestry and fuel supply infrastructure, biomass energy generation that contributes to greenhouse gas mitigation, and job creation in project development and operation and in the rural forestry sector.

  20. Arc initiation in cathodic arc plasma sources

    DOE Patents [OSTI]

    Anders, Andre

    2002-01-01

    A "triggerless" arc initiation method and apparatus is based on simply switching the arc supply voltage to the electrodes (anode and cathode). Neither a mechanical trigger electrode nor a high voltage flashover from a trigger electrode is required. A conducting path between the anode and cathode is provided, which allows a hot spot to form at a location where the path connects to the cathode. While the conductive path is eroded by the cathode spot action, plasma deposition ensures the ongoing repair of the conducting path. Arc initiation is achieved by simply applying the relatively low voltage of the arc power supply, e.g. 500 V-1 kV, with the insulator between the anode and cathode coated with a conducting layer and the current at the layer-cathode interface concentrated at one or a few contact points. The local power density at these contact points is sufficient for plasma production and thus arc initiation. A conductive surface layer, such as graphite or the material being deposited, is formed on the surface of the insulator which separates the cathode from the anode. The mechanism of plasma production (and arc initiation) is based on explosive destruction of the layer-cathode interface caused by joule heating. The current flow between the thin insulator coating and cathode occurs at only a few contact points so the current density is high.

  1. Facilities Initiatives | Department of Energy

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

    Facilities Initiatives Facilities Initiatives The Headquarters Office of Administration, Office of Logistics and Facility Operations, has several energy saving initiatives in place or in progress at their Headquarters' facilities in the Forrestal Building in Washington, DC, and Germantown Maryland. Many of these initiatives are part of their Energy Savings Performance Contract (ESPC). ESPCs allow Federal agencies to accomplish energy savings projects without up-front capital costs and without

  2. RFID tag modification for full depth backscatter modulation

    DOE Patents [OSTI]

    Scott, Jeffrey Wayne [Pasco, WA; Pratt, Richard M [Richland, WA

    2010-07-20

    A modulated backscatter radio frequency identification device includes a diode detector configured to selectively modulate a reply signal onto an incoming continuous wave; communications circuitry configured to provide a modulation control signal to the diode detector, the diode detector being configured to modulate the reply signal in response to be modulation control signal; and circuitry configured to increase impedance change at the diode detector which would otherwise not occur because the diode detector rectifies the incoming continuous wave while modulating the reply signal, whereby reducing the rectified signal increases modulation depth by removing the reverse bias effects on impedance changes. Methods of improving depth of modulation in a modulated backscatter radio frequency identification device are also provided.

  3. Florida Hydrogen Initiative

    SciTech Connect (OSTI)

    Block, David L

    2013-06-30

    The Florida Hydrogen Initiative (FHI) was a research, development and demonstration hydrogen and fuel cell program. The FHI program objectives were to develop Florida?s hydrogen and fuel cell infrastructure and to assist DOE in its hydrogen and fuel cell activities The FHI program funded 12 RD&D projects as follows: Hydrogen Refueling Infrastructure and Rental Car Strategies -- L. Lines, Rollins College This project analyzes strategies for Florida's early stage adaptation of hydrogen-powered public transportation. In particular, the report investigates urban and statewide network of refueling stations and the feasibility of establishing a hydrogen rental-car fleet based in Orlando. Methanol Fuel Cell Vehicle Charging Station at Florida Atlantic University ? M. Fuchs, EnerFuel, Inc. The project objectives were to design, and demonstrate a 10 kWnet proton exchange membrane fuel cell stationary power plant operating on methanol, to achieve an electrical energy efficiency of 32% and to demonstrate transient response time of less than 3 milliseconds. Assessment of Public Understanding of the Hydrogen Economy Through Science Center Exhibits, J. Newman, Orlando Science Center The project objective was to design and build an interactive Science Center exhibit called: ?H2Now: the Great Hydrogen Xchange?. On-site Reformation of Diesel Fuel for Hydrogen Fueling Station Applications ? A. Raissi, Florida Solar Energy Center This project developed an on-demand forecourt hydrogen production technology by catalytically converting high-sulfur hydrocarbon fuels to an essentially sulfur-free gas. The removal of sulfur from reformate is critical since most catalysts used for the steam reformation have limited sulfur tolerance. Chemochromic Hydrogen Leak Detectors for Safety Monitoring ? N. Mohajeri and N. Muradov, Florida Solar Energy Center This project developed and demonstrated a cost-effective and highly selective chemochromic (visual) hydrogen leak detector for safety monitoring at any facility engaged in transport, handling and use of hydrogen. Development of High Efficiency Low Cost Electrocatalysts for Hydrogen Production and PEM Fuel Cell Applications ? M. Rodgers, Florida Solar Energy Center The objective of this project was to decrease platinum usage in fuel cells by conducting experiments to improve catalyst activity while lowering platinum loading through pulse electrodeposition. Optimum values of several variables during electrodeposition were selected to achieve the highest electrode performance, which was related to catalyst morphology. Understanding Mechanical and Chemical Durability of Fuel Cell Membrane Electrode Assemblies ? D. Slattery, Florida Solar Energy Center The objective of this project was to increase the knowledge base of the degradation mechanisms for membranes used in proton exchange membrane fuel cells. The results show the addition of ceria (cerium oxide) has given durability improvements by reducing fluoride emissions by an order of magnitude during an accelerated durability test. Production of Low-Cost Hydrogen from Biowaste (HyBrTec?) ? R. Parker, SRT Group, Inc., Miami, FL This project developed a hydrogen bromide (HyBrTec?) process which produces hydrogen bromide from wet-cellulosic waste and co-produces carbon dioxide. Eelectrolysis dissociates hydrogen bromide producing recyclable bromine and hydrogen. A demonstration reactor and electrolysis vessel was designed, built and operated. Development of a Low-Cost and High-Efficiency 500 W Portable PEMFC System ? J. Zheng, Florida State University, H. Chen, Bing Energy, Inc. The objectives of this project were to develop a new catalyst structures comprised of highly conductive buckypaper and Pt catalyst nanoparticles coated on its surface and to demonstrate fuel cell efficiency improvement and durability and cell cost reductions in the buckypaper based electrodes. Development of an Interdisciplinary Hydrogen and Fuel Cell Technology Academic Program ? J. Politano, Florida Institute of Technology, Melbourne, FL This project developed a hydrogen and fuel cell technology academic program at Florida Institute of Technology in Melbourne, Florida. Design and Development of an Advanced Hydrogen Storage System using Novel Materials ? E. Stefanakos, University of South Florida The goal of this project was to design and develop novel conducting polymeric nanomaterials for on-board hydrogen storage. The project approach was to examine synthesis of polyaniline solid state hydrogen storage materials. Advanced HiFoil ? Bipolar Plates ? J. Braun, M. Fuchs, EnerFuel, Inc. The goal of this project was to provide a durable, low cost bipolar plate for high temperature proton exchange membrane fuel cells. The project results produced a durable, low cost bipolar plate with very high in-plane thermal conductivity.

  4. Low volume flow meter

    DOE Patents [OSTI]

    Meixler, Lewis D.

    1993-01-01

    The low flow monitor provides a means for determining if a fluid flow meets a minimum threshold level of flow. The low flow monitor operates with a minimum of intrusion by the flow detection device into the flow. The electrical portion of the monitor is externally located with respect to the fluid stream which allows for repairs to the monitor without disrupting the flow. The electronics provide for the adjustment of the threshold level to meet the required conditions. The apparatus can be modified to provide an upper limit to the flow monitor by providing for a parallel electronic circuit which provides for a bracketing of the desired flow rate.

  5. Flow tests of the Gladys McCall well. Appendix A, Gladys McCall Site (Cameron Parish, LA): Final report, October 1985--October 1990

    SciTech Connect (OSTI)

    Randolph, P.L.; Hayden, C.G.; Rogers, L.A.

    1992-04-01

    This report pulls together the data from all of the geopressured-geothermal field research conducted at the Gladys McCall well. The well produced geopressured brine containing dissolved natural gas from the Lower Miocene sands at a depth of 15,150 to 16,650 feet. More than 25 million barrels of brine and 727 million standard cubic feet of natural gas were produced in a series of flow tests between December 1982 and October 1987 at various brine flow rates up to 28,000 barrels per day. Initial short-term flow tests for the Number 9 Sand found the permeability to be 67 to 85 md (millidarcies) for a brine volume of 85 to 170 million barrels. Initial short-term flow tests for the Number 8 Sand found a permeability of 113 to 132 md for a reservoir volume of 430 to 550 million barrels of brine. The long-term flow and buildup test of the Number 8 Sand found that the high-permeability reservoir connected to the wellbore (measured by the short-term flow test) was connected to a much larger, low-permeability reservoir. Numerical simulation of the flow and buildup tests required this large connected reservoir to have a volume of about 8 billion barrels (two cubic miles of reservoir rock) with effective permeabilities in the range of 0.2 to 20 md. Calcium carbonate scale formation in the well tubing and separator equipment was a problem. During the first 2 years of production, scale formation was prevented in the surface equipment by injection of an inhibitor upstream of the choke. Starting in 1985, scale formation in the production tubing was successfully prevented by injecting inhibitor ``pills`` directly into the reservoir. Corrosion and/or erosion of surface piping and equipment, as well as disposal well tubing, was also significant.

  6. Report on the Depth Requirements for a Massive Detector at Homestake

    SciTech Connect (OSTI)

    Bernstein,A.; Blucher, E.; Cline, D. B.; Diwan, M. V.; Fleming, b.; Kadel, R.; Kearns, E.; Klein, J.; Lande, K.; Lanni, F.; Lissauer, D.; McKeown, R.; Morse, W.; Radeika, R.; Scholberg, K.; Smy, M.; Sobel, H.; Sullivan, G.; Svoboda, R.; Vagins, M.; Walter, C.; Zwaska, R.

    2008-12-22

    This report provides the technical justification for locating a large detector underground in a US based Deep Underground Science and Engineering Laboratory. A large detector with a fiducial mass greater than 100 kTon will most likely be a multipurpose facility. The main physics justification for such a device is detection of accelerator generated neutrinos, nucleon decay, and natural sources of neutrinos such as solar, atmospheric and supernova neutrinos. The requirement on the depth of this detector will be guided by the rate of signals from these sources and the rate of backgrounds from cosmic rays over a very wide range of energies (from solar neutrino energies of 5 MeV to high energies in the range of tens of GeV). For the present report, we have examined the depth requirement for a large water Cherenkov detector and a liquid argon time projection chamber. There has been extensive previous experience with underground water Cherenkov detectors such as IMB, Kamioka, and most recently, Super-Kamiokande which has a fiducial mass of 22 kTon and a total mass of 50 kTon at a depth of 2700 meters-water-equivalent. Projections for signal and background capability for a larger and deeper (or shallower) detectors of this type can be scaled from these previous detectors. The liquid argon time projection chamber has the advantage of being a very fine-grained tracking detector, which provides enhanced capability for background rejection. In the current work we have taken the approach that the depth should be sufficient to suppress the cosmogenic background below predicted signal rates for either of the above two technologies. Nevertheless, it is also clear that the underground facility that we are examining must have a long life and will most likely be used either for future novel uses of the currently planned detectors or new technologies. Therefore the depth requirement also needs to be made on the basis of sound judgment regarding possible future use. In particular, the depth should be sufficient for any possible future use of these cavities or the level which will be developed for these large structures. Along with these physics justifications there are practical issues regarding the existing infrastructure at Homestake and also the stress characteristics of the Homestake rock formations. In this report we will examine the various depth choices at Homestake from the point of view of the particle and nuclear physics signatures of interest. We also have sufficient information about the existing infrastructure and the rock characteristics to narrow the choice of levels for the development of large cavities with long lifetimes. We make general remarks on desirable ground conditions for such large cavities and then make recommendations on how to start examining these levels to make a final choice. In the appendix we have outlined the initial requirements for the detectors. These requirements will undergo refinement during the course of the design. Finally, we strongly recommend that the geotechnical studies be commenced at the 4850 ft level, which we find to be the most suitable, in a timely manner.

  7. Report on the Depth Requirements for a Massive Detector at Homestake

    SciTech Connect (OSTI)

    Kadel, Richard W.; Bernstein, Adam; Blucher, Edward; Cline, David B.; Diwan, Milind V.; Fleming, Bonnie; Kearns, Edward; Klein, Joshua; Lande, Kenneth; Lanni, Francesco; Lissauer, David; McKeown, Robert; Morse, William; Rameika, Regina; Scholberg, Kate; Smy, Michael; Sobel, Henry; Sullivan, Gregory; Svoboda, Robert; Vagins, Mark; Walter, Christopher; Zwaska, Robert

    2008-12-23

    This report provides the technical justification for locating a large detector underground in a US based Deep Underground Science and Engineering Laboratory. A large detector with a fiducial mass greater than 100 kTon will most likely be a multipurpose facility. The main physics justification for such a device is detection of accelerator generated neutrinos, nucleon decay, and natural sources of neutrinos such as solar, atmospheric and supernova neutrinos. The requirement on the depth of this detector will be guided by the rate of signals from these sources and the rate of backgrounds from cosmic rays over a very wide range of energies (from solar neutrino energies of 5 MeV to high energies in the range of hundreds of GeV). For the present report, we have examined the depth requirement for a large water Cherenkov detector and a liquid argon time projection chamber. There has been extensive previous experience with underground water Cherenkov detectors such as IMB, Kamioka, and most recently, Super-Kamiokande which has a fiducial mass of 22 kTon and a total mass of 50 kTon at a depth of 2700 meters-water-equivalent in a mountain. Projections for signal and background capability for a larger and deeper(or shallower) detectors of this type can be scaled from these previous detectors. The liquid argon time projection chamber has the advantage of being a very fine-grained tracking detector, which should provide enhanced capability for background rejection. We have based background rejection on reasonable estimates of track and energy resolution, and in some cases scaled background rates from measurements in water. In the current work we have taken the approach that the depth should be sufficient to suppress the cosmogenic background below predicted signal rates for either of the above two technologies. Nevertheless, it is also clear that the underground facility that we are examining must have a long life and will most likely be used either for future novel uses of the currently planned detectors or new technologies. Therefore the depth requirement also needs to be made on the basis of sound judgment regarding possible future use. In particular, the depth should be sufficient for any possible future use of these cavities or the level which will be developed for these large structures.Along with these physics justifications there are practical issues regarding the existing infrastructure at Homestake and also the stress characteristics of the Homestake rock formations. In this report we will examine the various depth choices at Homestake from the point of view of the particle and nuclear physics signatures of interest. We also have sufficient information about the existing infrastructure and the rock characteristics to narrow the choice of levels for the development of large cavities with long lifetimes. We make general remarks on desirable ground conditions for such large cavities and then make recommendations on how to start examining these levels to make a final choice. In the appendix we have outlined the initial requirements for the detectors. These requirements will undergo refinement during the course of the design. Finally, we strongly recommend that the geotechnical studies be commenced at the 4850 ft level, which we find to be the most suitable, in a timely manner.

  8. Leakage of CO2 from geologic storage: Role of secondaryaccumulation at shallow depth

    SciTech Connect (OSTI)

    Pruess, K.

    2007-05-31

    Geologic storage of CO2 can be a viable technology forreducing atmospheric emissions of greenhouse gases only if it can bedemonstrated that leakage from proposed storage reservoirs and associatedhazards are small or can be mitigated. Risk assessment must evaluatepotential leakage scenarios and develop a rational, mechanisticunderstanding of CO2 behavior during leakage. Flow of CO2 may be subjectto positive feedbacks that could amplify leakage risks and hazards,placing a premium on identifying and avoiding adverse conditions andmechanisms. A scenario that is unfavorable in terms of leakage behavioris formation of a secondary CO2 accumulation at shallow depth. This paperdevelops a detailed numerical simulation model to investigate CO2discharge from a secondary accumulation, and evaluates the role ofdifferent thermodynamic and hydrogeologic conditions. Our simulationsdemonstrate self-enhancing as well as self-limiting feedbacks.Condensation of gaseous CO2, 3-phase flow of aqueous phase -- liquid CO2-- gaseous CO2, and cooling from Joule-Thomson expansion and boiling ofliquid CO2 are found to play important roles in the behavior of a CO2leakage system. We find no evidence that a subsurface accumulation of CO2at ambient temperatures could give rise to a high-energy discharge, aso-called "pneumatic eruption."

  9. Clean Energy Manufacturing Initiative Events | Department of Energy

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

    Initiative Events Clean Energy Manufacturing Initiative Events

  10. AVAILABLE ONLINE AT: INITIATED BY:

    National Nuclear Security Administration (NNSA)

    INITIATED BY: http:nnsa.energy.gov Office of Information Management and the Chief ... set forth by the Department of Energy (DOE), to improve and maintain an ...

  11. Army Energy Initiatives Task Force

    Broader source: Energy.gov [DOE]

    Presentation—given at the Fall 2011 Federal Utility Partnership Working Group (FUPWG) meeting—covers the Army Energy Initiatives Task Force.

  12. Innovative Manufacturing Initiative Recognition Day

    Broader source: Energy.gov [DOE]

    The Innovative Manufacturing Initiative (IMI) Recognition Day (held in Washington, DC on June 20, 2012) showcased IMI projects selected by the Energy Department to help American manufacturers...

  13. Workplace Charging Program and Initiatives

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

    Program and Initiatives Evan Kolkos New York Power Authority Clean Energy Technology 2008 All Rights Reserved NYPA: Who We Are * Largest state public power organization in the...

  14. Flow distribution channels to control flow in process channels...

    Office of Scientific and Technical Information (OSTI)

    Flow distribution channels to control flow in process channels Citation Details In-Document Search Title: Flow distribution channels to control flow in process channels You are ...

  15. Multiphase flow calculation software

    DOE Patents [OSTI]

    Fincke, James R.

    2003-04-15

    Multiphase flow calculation software and computer-readable media carrying computer executable instructions for calculating liquid and gas phase mass flow rates of high void fraction multiphase flows. The multiphase flow calculation software employs various given, or experimentally determined, parameters in conjunction with a plurality of pressure differentials of a multiphase flow, preferably supplied by a differential pressure flowmeter or the like, to determine liquid and gas phase mass flow rates of the high void fraction multiphase flows. Embodiments of the multiphase flow calculation software are suitable for use in a variety of applications, including real-time management and control of an object system.

  16. Clean Electricity Initiatives in California

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

    Edward Randolph Director, Energy Division California Public Utilities Commission July 14, 2014 2014 EIA Energy Conference Clean Electricity Policy Initiatives In California (Partial) * Wholesale Renewables : - Renewables Portfolio Standard - Feet in Tariffs (RAM & ReMAT) - All source procurement (under development) * Customer Renewable Generation - California Solar Initiative - Net Energy Metering - Green Tariffs - Energy Efficiency - Demand Response - Rate Reform - Storage - Retirement of

  17. Identification Of Rippability And Bedrock Depth Using Seismic Refraction

    SciTech Connect (OSTI)

    Ismail, Nur Azwin; Saad, Rosli; Nawawi, M. N. M; Muztaza, Nordiana Mohd; El Hidayah Ismail, Noer; Mohamad, Edy Tonizam

    2010-12-23

    Spatial variability of the bedrock with reference to the ground surface is vital for many applications in geotechnical engineering to decide the type of foundation of a structure. A study was done within the development area of Mutiara Damansara utilising the seismic refraction method using ABEM MK8 24 channel seismograph. The geological features of the subsurface were investigated and velocities, depth to the underlying layers were determined. The seismic velocities were correlated with rippability characteristics and borehole records. Seismic sections generally show a three layer case. The first layer with velocity 400-600 m/s predominantly consists of soil mix with gravel. The second layer with velocity 1600-2000 m/s is suggested to be saturated and weathered area. Both layers forms an overburden and generally rippable. The third layer represents granite bedrock with average depth and velocity 10-30 m and >3000 m/s respectively and it is non-rippable. Steep slope on the bedrock are probably the results of shear zones.

  18. Campbell penetration depth in Fe-based superconductors

    SciTech Connect (OSTI)

    Prommapan, Plegchart

    2011-08-15

    A 'true' critical current density, j{sub c}, as opposite to commonly measured relaxed persistent (Bean) current, j{sub B}, was extracted from the Campbell penetration depth, {lambda}{sub c}(T,H) measured in single crystals of LiFeAs, and optimally electron-doped Ba(Fe{sub 0.954}Ni{sub 0.046}){sub 2}As{sub 2} (FeNi122). In LiFeAs, the effective pinning potential is nonparabolic, which follows from the magnetic field - dependent Labusch parameter {alpha}. At the equilibrium (upon field - cooling), {alpha}(H) is non-monotonic, but it is monotonic at a finite gradient of the vortex density. This behavior leads to a faster magnetic relaxation at the lower fields and provides a natural dynamic explanation for the fishtail (second peak) effect. We also find the evidence for strong pinning at the lower fields.The inferred field dependence of the pinning potential is consistent with the evolution from strong pinning, through collective pinning, and eventually to a disordered vortex lattice. The value of j{sub c}(2 K) {approx_equal} 1.22 x 10{sup 6} A/cm{sup 2} provide an upper estimate of the current carrying capability of LiFeAs. Overall, vortex behavior of almost isotropic, fully-gapped LiFeAs is very similar to highly anisotropic d-wave cuprate superconductors, the similarity that requires further studies in order to understand unconventional superconductivity in cuprates and pnictides. In addition to LiFeAs, we also report the magnetic penetration depth in BaFe{sub 2}As{sub 2} based superconductors including irradiation of FeNi122. In unirradiated FeNi122, the maximum critical current value is, j{sub c}(2K) {approx_equal} 3.3 x 10{sup 6} A/cm{sup 2}. The magnetic-dependent feature was observed near the transition temperature in FeTe{sub 0.53}Se{sub 0.47} and irradiated FeNi122. Because of this feature, further studies are required in order to properly calibrate the Campbell penetration depth. Finally, we detected the crossing between the magnetic penetration depth and London penetration depth in optimally hold-doped Ba{sub 0.6}K{sub 0.4}Fe{sub 2}As{sub 2} (BaK122) and isovalent doped BaFe{sub 2}(As{sub 0.7}P{sub 0.3}){sub 2} (BaP122). These phenomena probably coincide with anomalous Meissner effect reported in pnicitde superconductors [Prozorov et al. (2010b)] however more studies are needed in order to clarify this.

  19. Information flow, non-Markovianity, and geometric phases

    SciTech Connect (OSTI)

    Wu, S. L.; Wang, L. C.; Yi, X. X. [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China); Huang, X. L. [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China); School of Physics and Electronic Technology, Liaoning Normal University, Dalian, 116029 (China)

    2010-11-15

    Geometric phases and information flows of a two-level system coupled to its environment are calculated and analyzed. The information flow is defined as a cumulant of changes in trace distance between two quantum states, which is similar to the measure for non-Markovianity given by Breuer. We obtain an analytic relation between the geometric phase and the information flow for pure initial states, and a numerical result for mixed initial states. The geometric phase behaves differently depending on whether there are information flows back to the two-level system from its environment.

  20. Writing Effective Initial Summary Ratings Initial Summary Rating (ISR)

    Energy Savers [EERE]

    Initial Summary Ratings Initial Summary Rating (ISR) At the end of the performance cycle, the rating official must prepare an ISR in ePerformance for each SES member who has completed at least 90 days on an established performance plan. Rating officials must take into account the SES member's accomplishments achieved during the performance cycle and the impact to the organization's performance. Rating officials must appraise executives realistically and fairly and avoid ratings inflation.

  1. Portable wastewater flow meter

    DOE Patents [OSTI]

    Hunter, Robert M.

    1999-02-02

    A portable wastewater flow meter particularly adapted for temporary use at a single location in measuring the rate of liquid flow in a circular entrance conduit of a sewer manhole both under free flow and submerged, open channel conditions and under fill pipe, surcharged conditions, comprising an apparatus having a cylindrical external surface and an inner surface that constricts the flow through the apparatus in such a manner that a relationship exists between (1) the difference between the static pressure head of liquid flowing through the entrance of the apparatus and the static pressure head of liquid flowing through the constriction, and (2) the rate of liquid flow through the apparatus.

  2. Portable wastewater flow meter

    DOE Patents [OSTI]

    Hunter, Robert M.

    1990-01-01

    A portable wastewater flow meter particularly adapted for temporary use at a single location in measuring the rate of liquid flow in a circular entrance conduit of a sewer manhole both under free flow and submerged, open channel conditions and under full pipe, surcharged conditions, comprising an apparatus having a cylindrical external surface and an inner surface that constricts the flow through the apparatus in such a manner that a relationship exists between (1) the difference between the static pressure head of liquid flowing through the entrance of the apparatus and the static pressure head of liquid flowing through the constriction, and (2) the rate of liquid flow through the apparatus.

  3. Exploring the concept of compressed air energy storage (CAES) in lined rock caverns at shallow depth: A modeling study of air tightness and energy balance

    SciTech Connect (OSTI)

    Kim, H.-M.; Rutqvist, J.; Ryu, D.-W.; Choi, B.-H.; Sunwoo, C.; Song, W.-K.

    2011-07-15

    This paper presents a numerical modeling study of coupled thermodynamic, multiphase fluid flow and heat transport associated with underground compressed air energy storage (CAES) in lined rock caverns. Specifically, we explored the concept of using concrete lined caverns at a relatively shallow depth for which constructing and operational costs may be reduced if air tightness and stability can be assured. Our analysis showed that the key parameter to assure long-term air tightness in such a system was the permeability of both the concrete lining and the surrounding rock. The analysis also indicated that a concrete lining with a permeability of less than 110{sup -18} m{sup 2} would result in an acceptable air leakage rate of less than 1%, with the operational pressure range between 5 and 8 MPa at a depth of 100 m. It was further noted that capillary retention properties and the initial liquid saturation of the lining were very important. Indeed, air leakage could be effectively prevented when the air-entry pressure of the concrete lining is higher than the operational air pressure and when the lining is kept moist at a relatively high liquid saturation. Our subsequent energy-balance analysis demonstrated that the energy loss for a daily compression and decompression cycle is governed by the air-pressure loss, as well as heat loss by conduction to the concrete liner and surrounding rock. For a sufficiently tight system, i.e., for a concrete permeability off less than 110{sup -18} m{sup 2}, heat loss by heat conduction tends to become proportionally more important. However, the energy loss by heat conduction can be minimized by keeping the air-injection temperature of compressed air closer to the ambient temperature of the underground storage cavern. In such a case, almost all the heat loss during compression is gained back during subsequent decompression. Finally, our numerical simulation study showed that CAES in shallow rock caverns is feasible from a leakage and energy efficiency viewpoint. Our numerical approach and energy analysis will next be applied in designing and evaluating the performance of a planned full-scale pilot test of the proposed underground CAES concept.

  4. Thin-film optical initiator

    DOE Patents [OSTI]

    Erickson, Kenneth L.

    2001-01-01

    A thin-film optical initiator having an inert, transparent substrate, a reactive thin film, which can be either an explosive or a pyrotechnic, and a reflective thin film. The resultant thin-film optical initiator system also comprises a fiber-optic cable connected to a low-energy laser source, an output charge, and an initiator housing. The reactive thin film, which may contain very thin embedded layers or be a co-deposit of a light-absorbing material such as carbon, absorbs the incident laser light, is volumetrically heated, and explodes against the output charge, imparting about 5 to 20 times more energy than in the incident laser pulse.

  5. California Solar Initiative- PV Incentives

    Broader source: Energy.gov [DOE]

    In January 2006, the California Public Utilities Commission (CPUC) adopted a program -- the California Solar Initiative (CSI) -- to provide more than $2.3 billion in incentives for photovoltaic (...

  6. Georgia Power- Advanced Solar Initiative

    Broader source: Energy.gov [DOE]

    Note: According to Georgia Power's website, the Advanced Solar Initiative's final program guidelines are due to be published on June 25th and the bidding period for is expected to open on July 10,...

  7. Energy Efficient Schools Initiative- Loans

    Broader source: Energy.gov [DOE]

    The Energy Efficient Schools Initiative (EESI) was created in May 2008 to provide grants and loans to Tennessee school systems for capital outlay projects that meet energy efficient design and te...

  8. SunShot Initiative Newsletter

    Broader source: Energy.gov [DOE]

    The SunShot Initiative offers a monthly email newsletter to provide up-to-date information about its latest activities and upcoming funding opportunities. The SunShot newsletter provide regular...

  9. Initial Steps | Argonne National Laboratory

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

    Initial Steps Setting Research and Career Goals Each new postdoc should fill out a Postdoctoral Initial Discussion Form with his or her advisor. This is an opportunity to define career objectives, discuss how this postdoctoral appointment and its related research focus can contribute to those objectives, and identify opportunities for professional development while at Argonne. Postdocs should also consider transferrable skills needed to make successful career transitions and core competencies

  10. Jet initiation of PBX 9502

    SciTech Connect (OSTI)

    McAfee, J.M.

    1987-07-01

    This report details the progress of an effort to determine the quantitative aspects of the initiation of PBX 9502 (95% TATB, 5% Kel-F 800) by copper jets. The particular jet used was that produced by the LAW warhead (66-mm diameter, 42/sup 0/ angle cone, copper-lined, conical shaped charge). Fifteen experiments, in various configurations, have been fired to define the essential parameters for quantitatively measuring the jet performance and initiation of bare PBX 9502. 7 refs., 8 figs.

  11. Services Initiatives | Department of Energy

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

    Services Initiatives Services Initiatives The Transportation Team Uses Alternative Fueled Vehicles in HQ Fleet 81% of HQ Fleet is alternative fueled (FY 2014). HQ utilizes biodiesel (B20) fueled shuttle buses, a domestic renewable fuel derived from natural oils like soybean oil. Recycled Paper for Copiers and Printers DOE Headquarters purchases a combination of 30% and 100% post-consumer recycled content paper for use in its staffed copy centers, walk-up copiers, and dedicated office printers

  12. The Green Building Initiative | Open Energy Information

    Open Energy Info (EERE)

    Green Building Initiative Jump to: navigation, search Name: The Green Building Initiative Place: Portland, Oregon Zip: 97201 Product: The Green Building Initiative works with...

  13. Instream Flows Incremental Methodology :Kootenai River, Montana : Final Report 1990-2000.

    SciTech Connect (OSTI)

    Hoffman, Greg; Skaar, Don; Dalbey, Steve

    2002-11-01

    Regulated rivers such as the Kootenai River below Libby Dam often exhibit hydrographs and water fluctuation levels that are atypical when compared to non-regulated rivers. These flow regimes are often different conditions than those which native fish species evolved with, and can be important limiting factors in some systems. Fluctuating discharge levels can change the quantity and quality of aquatic habitat for fish. The instream flow incremental methodology (IFIM) is a tool that can help water managers evaluate different discharges in terms of their effects on available habitat for a particular fish species. The U.S. Fish and Wildlife Service developed the IFIM (Bovee 1982) to quantify changes in aquatic habitat with changes in instream flow (Waite and Barnhart 1992; Baldridge and Amos 1981; Gore and Judy 1981; Irvine et al. 1987). IFIM modeling uses hydraulic computer models to relate changes in discharge to changes in the physical parameters such as water depth, current velocity and substrate particle size, within the aquatic environment. Habitat utilization curves are developed to describe the physical habitat most needed, preferred or tolerated for a selected species at various life stages (Bovee and Cochnauer 1977; Raleigh et al. 1984). Through the use of physical habitat simulation computer models, hydraulic and physical variables are simulated for differing flows, and the amount of usable habitat is predicted for the selected species and life stages. The Kootenai River IFIM project was first initiated in 1990, with the collection of habitat utilization and physical hydraulic data through 1996. The physical habitat simulation computer modeling was completed from 1996 through 2000 with the assistance from Thomas Payne and Associates. This report summarizes the results of these efforts.

  14. DESIGN AND DEVELOPMENT OF GAS-LIQUID CYLINDRICAL CYCLONE COMPACT SEPARATORS FOR THREE-PHASE FLOW

    SciTech Connect (OSTI)

    Dr. Ram S. Mohan; Dr. Ovadia Shoham

    2001-10-30

    This report presents a brief overview of the activities and tasks accomplished during the second half year (April 1, 2001-September 30, 2001) of the fourth project year budget period (October 1, 2000-September 30, 2001). An executive summary is presented initially followed by the tasks of the current budget period. Then, detailed description of the experimental and modeling investigations are presented. Subsequently, the technical and scientific results of the activities of this project period are presented with some discussions. The findings of this investigation are summarized in the ''Conclusions'' section followed by relevant references. The fourth project year activities are divided into three main parts, which are carried out in parallel. The first part is continuation of the experimental program that includes a study of the oil/water two-phase behavior at high pressures and control system development for the three-phase GLCC{copyright}. This investigation will be eventually extended for three-phase flow. The second part consists of the development of a simplified mechanistic model incorporating the experimental results and behavior of dispersion of oil in water and water in oil. This will provide an insight into the hydrodynamic flow behavior and serve as the design tool for the industry. Although useful for sizing GLCC{copyright} for proven applications, the mechanistic model will not provide detailed hydrodynamic flow behavior information needed to screen new geometric variations or to study the effect of fluid property variations. Therefore, in the third part, the more rigorous approach of computational fluid dynamics (CFD) will be utilized. Multidimensional multiphase flow simulation at high pressures and for real crude conditions will provide much greater depth into the understanding of the physical phenomena and the mathematical analysis of three-phase GLCC{copyright} design and performance.

  15. DESIGN AND DEVELOPMENT OF GAS-LIQUID CYLINDRICAL CYCLONE COMPACT SEPARATORS FOR THREE-PHASE FLOW

    SciTech Connect (OSTI)

    Dr. Ram S. Mohan; Dr. Ovadia Shoham

    2001-04-30

    This report presents a brief overview of the activities and tasks accomplished during the first half year (October 1, 2000-March 31, 2001) of the fourth project year budget period (October 1, 2000-September 30, 2001). An executive summary is presented initially followed by the tasks of the current budget period. Then, detailed description of the experimental and modeling investigations are presented. Subsequently, the technical and scientific results of the activities of this project period are presented with some discussions. The findings of this investigation are summarized in the ''Conclusions'' section followed by relevant references. The fourth project year activities are divided into three main parts, which are carried out in parallel. The first part is continuation of the experimental program that includes a study of the oil/water two-phase behavior at high pressures and control system development for the three-phase GLCC{copyright}. This investigation will be eventually extended for three-phase flow. The second part consists of the development of a simplified mechanistic model incorporating the experimental results and behavior of dispersion of oil in water and water in oil. This will provide an insight into the hydrodynamic flow behavior and serve as the design tool for the industry. Although useful for sizing GLCC{copyright} for proven applications, the mechanistic model will not provide detailed hydrodynamic flow behavior information needed to screen new geometric variations or to study the effect of fluid property variations. Therefore, in the third part, the more rigorous approach of computational fluid dynamics (CFD) will be utilized. Multidimensional multiphase flow simulation at high pressures and for real crude conditions will provide much greater depth into the understanding of the physical phenomena and the mathematical analysis of three-phase GLCC{copyright} design and performance.

  16. Aerosol Optical Depth Value-Added Product for the SAS-He Instrument...

    Office of Scientific and Technical Information (OSTI)

    Aerosol Optical Depth Value-Added Product for the SAS-He Instrument Citation Details In-Document Search Title: Aerosol Optical Depth Value-Added Product for the SAS-He Instrument ...

  17. Taking Oil and Gas Exploration to New Depths | GE Global Research

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

    Taking Oil and Gas Exploration to New Depths Click to email this to a friend (Opens in new ... Taking Oil and Gas Exploration to New Depths Oliver Astley 2014.11.12 The challenges of ...

  18. Voluntary Initiative: Partnering to Enhance Program Capacity...

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

    Voluntary Initiative: Partnering to Enhance Program Capacity Better Buildings Residential Network Program Sustainability Peer Exchange Call Series: Voluntary Initiative: Partnering ...

  19. Research Initiative Will Demonstrate Low Temperature Geothermal...

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

    Research Initiative Will Demonstrate Low Temperature Geothermal Electrical Power Generation Systems Using Oilfield Fluids Research Initiative Will Demonstrate Low Temperature ...

  20. Full waveform inversion of solar interior flows

    SciTech Connect (OSTI)

    Hanasoge, Shravan M.

    2014-12-10

    The inference of flows of material in the interior of the Sun is a subject of major interest in helioseismology. Here, we apply techniques of full waveform inversion (FWI) to synthetic data to test flow inversions. In this idealized setup, we do not model seismic realization noise, training the focus entirely on the problem of whether a chosen supergranulation flow model can be seismically recovered. We define the misfit functional as a sum of L {sub 2} norm deviations in travel times between prediction and observation, as measured using short-distance filtered f and p {sub 1} and large-distance unfiltered p modes. FWI allows for the introduction of measurements of choice and iteratively improving the background model, while monitoring the evolution of the misfit in all desired categories. Although the misfit is seen to uniformly reduce in all categories, convergence to the true model is very slow, possibly because it is trapped in a local minimum. The primary source of error is inaccurate depth localization, which, due to density stratification, leads to wrong ratios of horizontal and vertical flow velocities ({sup c}ross talk{sup )}. In the present formulation, the lack of sufficient temporal frequency and spatial resolution makes it difficult to accurately localize flow profiles at depth. We therefore suggest that the most efficient way to discover the global minimum is to perform a probabilistic forward search, involving calculating the misfit associated with a broad range of models (generated, for instance, by a Monte Carlo algorithm) and locating the deepest minimum. Such techniques possess the added advantage of being able to quantify model uncertainty as well as realization noise (data uncertainty).

  1. Triangular flow in hydrodynamics and transport theory

    SciTech Connect (OSTI)

    Alver, Burak Han [Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307 (United States); Gombeaud, Clement; Luzum, Matthew; Ollitrault, Jean-Yves [CNRS, URA2306, IPhT, Institut de physique theorique de Saclay, F-91191 Gif-sur-Yvette (France)

    2010-09-15

    In ultrarelativistic heavy-ion collisions, the Fourier decomposition of the relative azimuthal angle, {Delta}{phi}, distribution of particle pairs yields a large cos(3{Delta}{phi}) component, extending to large rapidity separations {Delta}{eta}>1. This component captures a significant portion of the ridge and shoulder structures in the {Delta}{phi} distribution, which have been observed after contributions from elliptic flow are subtracted. An average finite triangularity owing to event-by-event fluctuations in the initial matter distribution, followed by collective flow, naturally produces a cos(3{Delta}{phi}) correlation. Using ideal and viscous hydrodynamics and transport theory, we study the physics of triangular (v{sub 3}) flow in comparison to elliptic (v{sub 2}), quadrangular (v{sub 4}), and pentagonal (v{sub 5}) flow. We make quantitative predictions for v{sub 3} at RHIC and LHC as a function of centrality and transverse momentum. Our results for the centrality dependence of v{sub 3} show a quantitative agreement with data extracted from previous correlation measurements by the STAR collaboration. This study supports previous results on the importance of triangular flow in the understanding of ridge and shoulder structures. Triangular flow is found to be a sensitive probe of initial geometry fluctuations and viscosity.

  2. Supersonic combustion engine and method of combustion initiation and distribution

    SciTech Connect (OSTI)

    Stickler, D.B.; Ballantyne, A.; Kyuman Jeong.

    1993-06-29

    A supersonic combustion ramjet engine having a combustor with a combustion zone intended to channel gas flow at relatively high speed therethrough, the engine comprising: means for substantially continuously supplying fuel into the combustion zone; and means for substantially instantaneously igniting a volume of fuel in the combustion zone for providing a spatially controlled combustion distribution, the igniting means having means for providing a diffuse discharge of energy into the volume, the volume extending across a substantially complete cross-sectional area of the combustion zone, the means for discharging energy being capable of generating free radicals within the volume of reactive fuel in the combustion zone such that fuel in the volume can initiate a controlled relatively rapid combustion of fuel in the combustion zone whereby combustion distribution in relatively high speed gas flows through the combustion zone can be initiated and controlled without dependence upon a flame holder or relatively high local static temperature in the combustion zone.

  3. Ultrasonic flow metering system

    DOE Patents [OSTI]

    Gomm, Tyler J.; Kraft, Nancy C.; Mauseth, Jason A.; Phelps, Larry D.; Taylor, Steven C.

    2002-01-01

    A system for determining the density, flow velocity, and mass flow of a fluid comprising at least one sing-around circuit that determines the velocity of a signal in the fluid and that is correlatable to a database for the fluid. A system for determining flow velocity uses two of the inventive circuits with directional transmitters and receivers, one of which is set at an angle to the direction of flow that is different from the others.

  4. Elbow mass flow meter

    DOE Patents [OSTI]

    McFarland, Andrew R.; Rodgers, John C.; Ortiz, Carlos A.; Nelson, David C.

    1994-01-01

    Elbow mass flow meter. The present invention includes a combination of an elbow pressure drop generator and a shunt-type mass flow sensor for providing an output which gives the mass flow rate of a gas that is nearly independent of the density of the gas. For air, the output is also approximately independent of humidity.

  5. Shear dispersion in dense granular flows (Journal Article) | SciTech

    Office of Scientific and Technical Information (OSTI)

    Connect Shear dispersion in dense granular flows Citation Details In-Document Search Title: Shear dispersion in dense granular flows We formulate and solve a model problem of dispersion of dense granular materials in rapid shear flow down an incline. The effective dispersivity of the depth-averaged concentration of the dispersing powder is shown to vary as the Péclet number squared, as in classical Taylor-Aris dispersion of molecular solutes. An extension to generic shear profiles is

  6. Energy Transition Initiative: Islands Playbook

    Broader source: Energy.gov [DOE]

    The Island Energy Playbook provides an action-oriented guide to successfully initiating, planning, and completing a transition to an energy system that primarily relies on local resources to eliminate a dependence on one or two imported fuels. It is intended to serve as a readily available framework that any community can adapt to organize its own energy transition effort.

  7. Managing Critical Management Improvement Initiatives

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

    2003-10-01

    Provides requirements and responsibilities for planning, executing and assessing critical management improvement initiatives within DOE. DOE N 251.59, dated 9/27/2004, extends this Notice until 10/01/2005. Archived 11-8-10. Does not cancel other directives.

  8. Anode initiated surface flashover switch

    DOE Patents [OSTI]

    Brainard, John P.; Koss, Robert J.

    2003-04-29

    A high voltage surface flashover switch has a pair of electrodes spaced by an insulator. A high voltage is applied to an anode, which is smaller than the opposing, grounded, cathode. When a controllable source of electrons near the cathode is energized, the electrons are attracted to the anode where they reflect to the insulator and initiate anode to cathode breakdown.

  9. Fayette County Better Buildings Initiative

    SciTech Connect (OSTI)

    Capella, Arthur

    2015-03-04

    The Fayette County Better Buildings Initiative represented a comprehensive and collaborative approach to promoting and implementing energy efficiency improvements. The initiative was designed to focus on implementing energy efficiency improvements in residential units, while simultaneously supporting general marketing of the benefits of implementing energy efficiency measures. The ultimate goal of Fayette County’s Better Buildings Initiative was to implement a total of 1,067 residential energy efficiency retrofits with a minimum 15% estimated energy efficiency savings per unit. Program partners included: United States Department of Energy, Allegheny Power, and Private Industry Council of Westmoreland-Fayette, Fayette County Redevelopment Authority, and various local partners. The program was open to any Fayette County residents who own their home and meet the prequalifying conditions. The level of assistance offered depended upon household income and commitment to undergo a BPI – Certified Audit and implement energy efficiency measures, which aimed to result in at least a 15% reduction in energy usage. The initiative was designed to focus on implementing energy efficiency improvements in residential units, while simultaneously supporting general marketing of the benefits of implementing energy efficiency measures. Additionally, the program had components that involved recruitment and training for employment of persons in the energy sector (green jobs), as well as marketing and implementation of a commercial or community facilities component. The residential component of Fayette County’s Better Buildings Initiative involved a comprehensive approach, providing assistance to low- moderate- and market-rate homeowners. The initiative will also coordinate activities with local utility providers to further incentivize energy efficiency improvements among qualifying homeowners. The commercial component of Fayette County’s Better Building Initiative involved grants and loans to assist up to $15,000 projects per commercial structure with a mixture of a grant and financing at 0% for up to three – (3) years. The maximum award can be a $5,000 grant and a $10,000 loan. For projects less than $15,000, the award will have a ratio of 1/3 grant and 2/3 loan.

  10. Initiation disruptor systems and methods of initiation disruption

    DOE Patents [OSTI]

    Baum, Dennis W

    2014-09-23

    A system that may be used as an initiation disruption system (IDS) according to one embodiment includes an explosive charge; a plurality of particles in a layer at least partially surrounding the explosive charge; and a fire suppressant adjacent the plurality of particles. A method for disabling an object according to one embodiment includes placing the system as recited above near an object; and causing the explosive charge to initiate, thereby applying mechanical loading to the object such that the object becomes disabled. Additional systems and methods are also presented. A device according to another embodiment includes a plurality of particles bound by a binder thereby defining a sidewall having an interior for receiving an explosive; and a fire suppressant adjacent the plurality of particles and binder. Additional systems and methods are also presented.

  11. Intermediate depth burial of classified transuranic wastes in arid alluvium

    SciTech Connect (OSTI)

    Cochran, J.R. [Sandia National Labs., Albuquerque, NM (United States). Environmental Risk and Decision Analysis Dept.; Crowe, B.M. [Los Alamos National Lab., NM (United States). Geologic Integration Group; Di Sanza, F. [Dept. of Energy, Las Vegas, NV (United States). Nevada Operations Office

    1999-04-01

    Intermediate depth disposal operations were conducted by the US Department of Energy (DOE) at the DOE`s Nevada Test Site (NTS) from 1984 through 1989. These operations emplaced high-specific activity low-level wastes (LLW) and limited quantities of classified transuranic (TRU) wastes in 37 m (120-ft) deep, Greater Confinement Disposal (GCD) boreholes. The GCD boreholes are 3 m (10 ft) in diameter and founded in a thick sequence of arid alluvium. The bottom 15 m (50 ft) of each borehole was used for waste emplacement and the upper 21 m (70 ft) was backfilled with native alluvium. The bottom of each GCD borehole is almost 200 m (650 ft) above the water table. The GCD boreholes are located in one of the most arid portions of the US, with an average precipitation of 13 cm (5 inches) per year. The limited precipitation, coupled with generally warm temperatures and low humidities results in a hydrologic system dominated by evapotranspiration. The US Environmental Protection Agency`s (EPA`s) 40 CFR 191 defines the requirements for protection of human health from disposed TRU wastes. This EPA standard sets a number of requirements, including probabilistic limits on the cumulative releases of radionuclides to the accessible environment for 10,000 years. The DOE Nevada Operations Office (DOE/NV) has contracted with Sandia National Laboratories (Sandia) to conduct a performance assessment (PA) to determine if the TRU wastes emplaced in the GCD boreholes complies with the EPA`s 40 CFR 191 requirements. This paper describes DOE`s actions undertaken to evaluate whether the TRU wastes in the GCD boreholes will, or will not, endanger human health. Based on preliminary modeling, the TRU wastes in the GCD boreholes meet the EPA`s requirements, and are, therefore, protective of human health.

  12. Method and apparatus for monitoring characteristics of a flow path having solid components flowing therethrough

    DOE Patents [OSTI]

    Hoskinson, Reed L.; Svoboda, John M.; Bauer, William F.; Elias, Gracy

    2008-05-06

    A method and apparatus is provided for monitoring a flow path having plurality of different solid components flowing therethrough. For example, in the harvesting of a plant material, many factors surrounding the threshing, separating or cleaning of the plant material and may lead to the inadvertent inclusion of the component being selectively harvested with residual plant materials being discharged or otherwise processed. In accordance with the present invention the detection of the selectively harvested component within residual materials may include the monitoring of a flow path of such residual materials by, for example, directing an excitation signal toward of flow path of material and then detecting a signal initiated by the presence of the selectively harvested component responsive to the excitation signal. The detected signal may be used to determine the presence or absence of a selected plant component within the flow path of residual materials.

  13. Lateral flow strip assay

    DOE Patents [OSTI]

    Miles, Robin R.; Benett, William J.; Coleman, Matthew A.; Pearson, Francesca S.; Nasarabadi, Shanavaz L.

    2011-03-08

    A lateral flow strip assay apparatus comprising a housing; a lateral flow strip in the housing, the lateral flow strip having a receiving portion; a sample collection unit; and a reagent reservoir. Saliva and/or buccal cells are collected from an individual using the sample collection unit. The sample collection unit is immersed in the reagent reservoir. The tip of the lateral flow strip is immersed in the reservoir and the reagent/sample mixture wicks up into the lateral flow strip to perform the assay.

  14. Low flow fume hood

    DOE Patents [OSTI]

    Bell, Geoffrey C. (Pleasant Hill, CA); Feustel, Helmut E. (Albany, CA); Dickerhoff, Darryl J. (Berkeley, CA)

    2002-01-01

    A fume hood is provided having an adequate level of safety while reducing the amount of air exhausted from the hood. A displacement flow fume hood works on the principal of a displacement flow which displaces the volume currently present in the hood using a push-pull system. The displacement flow includes a plurality of air supplies which provide fresh air, preferably having laminar flow, to the fume hood. The displacement flow fume hood also includes an air exhaust which pulls air from the work chamber in a minimally turbulent manner. As the displacement flow produces a substantially consistent and minimally turbulent flow in the hood, inconsistent flow patterns associated with contaminant escape from the hood are minimized. The displacement flow fume hood largely reduces the need to exhaust large amounts of air from the hood. It has been shown that exhaust air flow reductions of up to 70% are possible without a decrease in the hood's containment performance. The fume hood also includes a number of structural adaptations which facilitate consistent and minimally turbulent flow within a fume hood.

  15. Quantification of initial-data uncertainty on a shock-accelerated gas cylinder

    SciTech Connect (OSTI)

    Tritschler, V. K. Avdonin, A.; Hickel, S.; Hu, X. Y.; Adams, N. A.

    2014-02-15

    We quantify initial-data uncertainties on a shock accelerated heavy-gas cylinder by two-dimensional well-resolved direct numerical simulations. A high-resolution compressible multicomponent flow simulation model is coupled with a polynomial chaos expansion to propagate the initial-data uncertainties to the output quantities of interest. The initial flow configuration follows previous experimental and numerical works of the shock accelerated heavy-gas cylinder. We investigate three main initial-data uncertainties, (i) shock Mach number, (ii) contamination of SF{sub 6} with acetone, and (iii) initial deviations of the heavy-gas region from a perfect cylindrical shape. The impact of initial-data uncertainties on the mixing process is examined. The results suggest that the mixing process is highly sensitive to input variations of shock Mach number and acetone contamination. Additionally, our results indicate that the measured shock Mach number in the experiment of Tomkins et al. [An experimental investigation of mixing mechanisms in shock-accelerated flow, J. Fluid. Mech. 611, 131 (2008)] and the estimated contamination of the SF{sub 6} region with acetone [S. K. Shankar, S. Kawai, and S. K. Lele, Two-dimensional viscous flow simulation of a shock accelerated heavy gas cylinder, Phys. Fluids 23, 024102 (2011)] exhibit deviations from those that lead to best agreement between our simulations and the experiment in terms of overall flow evolution.

  16. Constraint effects observed in crack initiation stretch

    SciTech Connect (OSTI)

    Lambert, D.M.; Ernst, H.A.

    1995-12-31

    The current paper characterizes constraint in fracture: J-modified resistance (Jr) curves were developed for two tough structural materials, 6061-T651 (aluminum) and IN718-STA1 (nickel-base superalloy). A wide variety of configurations was tested to consider load configurations from bending to tension including three specimen types (compact tension, center-crack tension, and single-edge notched tension), and a range of ligament lengths and thicknesses, as well as side-grooved and smooth-sided ligaments. The Jr curves exhibited an inflection point after some crack extension, and the data were excluded beyond the inflection. Qualified Jr curves for the two materials showed similar behavior, but R-curves were identical for equal ligament length-to-thickness ratio (RL), for the aluminum alloy, with increasing slope for increasing RL, while for the nickel, the resistance curves aligned for equal ligament thickness, B, and the slope increased for decreasing B. Displacements at the original crack tip (CToD) were recorded throughout the test for several specimens. CToD-versus-crack extension curves were developed, and data were excluded beyond the inflection point (as with the Jr curves). The data collapsed into two distinct curves, thought to represent the surface, plane stress effect and the central, plane strain effect. This was observed for both materials. A technique called profiling is presented for the aluminum alloy only, where the crack face displacements are recorded at the final point of the test as a function of the position throughout the crack cavity, along with an effort to extract the observations in a usable form. Displacements were consistent throughout the cross-section at and behind the original crack tip. In the region where the crack grew, this displacement was developed by a combination of stretch and crack growth. The stretch required to initiate crack extension was a function of the depth beneath the surface into the cross-section.

  17. Seismic Velocities Contain Information About Depth, Lithology, Fluid Content, and Microstructure

    SciTech Connect (OSTI)

    Berge, P A; Bonner, B P

    2002-01-03

    Recent advances in field and laboratory methods for measuring elastic wave velocities provide incentive and opportunity for improving interpretation of geophysical data for engineering and environmental applications. Advancing the state-of-the-art of seismic imaging requires developing petrophysical relationships between measured velocities and the hydrogeology parameters and lithology. Our approach uses laboratory data and rock physics methods. Compressional (Vp) and shear (Vs) wave velocities, Vp/Vs ratios, and relative wave amplitudes show systematic changes related to composition, saturation, applied stress (analogous to depth), and distribution of clay for laboratory ultrasonic measurements on soils. The artificial soils were mixtures of Ottawa sand and a second phase, either Wyoming bentonite or peat moss used to represent clay or organic components found in natural soils. Compressional and shear wave velocities were measured for dry, saturated, and partially-saturated conditions, for applied stresses between about 7 and 100 kPa, representing approximately the top 5 m of the subsurface. Analysis of the results using rock physics methods shows the link between microstructure and wave propagation, and implications for future advances in seismic data interpretation. For example, we found that Vp in dry sand-clay mixtures initially increases as clay cements the sand grains and fills porosity, but then Vp decreases when the clay content is high enough that the clay matrix controls the elastic response of the material. Vs decreases monotonically with increasing clay content. This provides a method for using Vp/Vs ratios to estimate clay content in a dry soil.

  18. Innovative Manufacturing Initiative Recognition Day

    Broader source: Energy.gov [DOE]

    The Innovative Manufacturing Initiative (IMI) Recognition Day (held in Washington, DC on June 20, 2012) showcased IMI projects selected by the Energy Department to help American manufacturers dramatically increase the energy efficiency of their operations and reduce costs. Each project will advance transformational technologies and materials that can benefit a broad cross-section of the domestic economy. This event created a platform for inter-agency and industry networking and also raised awareness among congressional staff and private investors.

  19. Guam Initial Technical Assessment Report

    SciTech Connect (OSTI)

    Baring-Gould, I.; Conrad, M.; Haase, S.; Hotchkiss, E.; McNutt, P.

    2011-04-01

    Under an interagency agreement, funded by the Department of Interior's (DOI) Office of Insular Affairs (OIA), the National Renewable Energy Laboratory (NREL) was tasked to deliver technical assistance to the island of Guam by conducting an island initial technical assessment that would lay out energy consumption and production data and establish a baseline. This assessment will be used to conduct future analysis and studies by NREL that will estimate energy efficiency and renewable energy potential for the island of Guam.

  20. AVAILABLE ONLINE AT: INITIATED BY:

    National Nuclear Security Administration (NNSA)

    INITIATED BY: http://nnsa.energy.gov/ NNSA Office of Nuclear Safety & Health NNSA/EM SUPPLEMENTAL DIRECTIVE Approved: 6-25-12 DIFFERING PROFESSIONAL OPINIONS (DPO) PROCESS NATIONAL NUCLEAR SECURITY ADMINISTRATION and OFFICE OF ENVIRONMENTAL MANAGEMENT SD G 442.2 NNSA/ EM SD G 442.2 1 6-25-12 DIFFERING PROFESSIONAL OPINIONS PROCESS (DPO) 1. PURPOSE. This guidance document describes the process used jointly by the National Nuclear Security Administration (NNSA) and Office of Environmental

  1. TANK MIXING STUDY WITH FLOW RECIRCULATION

    SciTech Connect (OSTI)

    Lee, S.

    2014-06-25

    The primary objective of this work is to quantify the mixing time when two miscible fluids are mixed by one recirculation pump and to evaluate adequacy of 2.5 hours of pump recirculation to be considered well mixed in SRS tanks, JT-71/72. The work scope described here consists of two modeling analyses. They are the steady state flow pattern analysis during pump recirculation operation of the tank liquid and transient species transport calculations based on the initial steady state flow patterns. The modeling calculations for the mixing time are performed by using the 99% homogeneity criterion for the entire domain of the tank contents.

  2. Postdoctoral Initial Discussion Form | Argonne National Laboratory

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

    Initial Discussion Form This form outlines initial goals and clarifies expectations between a postdoc and his/her supervisor for a successful and productive relationship. Microsoft Office document icon Postdoctoral Initial Discussion Form.doc

  3. The effect of fluid flow on coiled tubing reach

    SciTech Connect (OSTI)

    Bhalla, K.; Walton, I.C.

    1996-12-31

    A critical parameter to the success of many coiled tubing (CT) operations in highly deviated or horizontal wells is the depth penetration that can be attained before the CT buckles and locks up. Achieving a desired depth is always critical in CT operations and attaining an additional reach of a few hundred feet can be crucial. This paper addresses the effect of fluid flow in the CT and in the CT/wellbore annulus on the state of force and stress in the CT, and thereby predicts its effect on the reach attainable by the CT. The flow of fluid through the CT and annulus between the CT and borehole modifies the pressures and the effective force which governs the mechanical stability of the CT. The net force per unit length due to fluid flow in the coiled tubing and annulus between the coiled tubing casing/well is calculated in terms of the shear stress and its effect on the onset of buckling and lockup is determined. The model is then implemented in a full tubing forces calculation and the effect of flowing fluids and producing fluids on reach is analyzed. The new model is utilized in the design of commercial jobs. The exact analytic model shows that fluid flow inside the CT has zero impact on reach, that downward flow in the annulus has a favourable impact, and upward flow in the annulus reduces the maximum attainable reach. Using the full tubing forces model, a coiled tubing job can be designed taking into account the flow of a fluid with a specified rheology, density and flow rate. Thus the feasibility of attaining a given reach can be more accurately determined. Results are presented in the form of the surface weight for commercial wells and compared to field jobs.

  4. RELAP-7 and PRONGHORN Initial Integration Plan

    SciTech Connect (OSTI)

    J. Ortensi; D. Andrs; A.A. Bingham; R.C. Martineau; J.W. Peterson

    2012-05-01

    Modern nuclear reactor safety codes require the ability to solve detailed coupled neutronicthermal fluids problems. For larger cores, this implies fully coupled 3-D spatial dynamics with appropriate feedback models that can provide enough resolution to accurately compute core heat generation and removal during steady and unsteady conditions. The reactor analyis code PRONGHORN is being coupled to RELAP-7 as a first step to extend RELAP's current capabilities. This report details the mathematical models, the type of coupling, and the testing that will be used to produce an integrated system. RELAP-7 is a MOOSE-based application that solves the continuity, momentum, and energy equations in 1-D for a compressible fluid. The pipe and joint capabilities enable it to model parts of the PCU system. The PRONGHORN application, also developed on the MOOSE infrastructure, solves the coupled equations that define the neutron diffusion, fluid flow, and heat transfer in a 3-D core model. Initially, the two systems will be loosely coupled to simplify the transition towards a more complex infrastructure. The integration will be tested with the OECD/NEA MHTGR-350 Coupled Neutronics-Thermal Fluids benchmark model.

  5. Multiple shock initiation of LX-17

    SciTech Connect (OSTI)

    Tarver, C.M.; Cook, T.M.; Urtiew, P.A.; Tao, W.C.

    1993-07-01

    The response of the insensitive TATB-based high explosive LX-17 to multiple shock impacts is studied experimentally in a four inch gas gun using embedded manganin gauges and numerically using the ignition and growth reactive flow model of shock initiation and detonation. Pressure histories are reported for LX-17 cylinders which are subjected to sustained shock pulses followed by secondary compressions from shocks reflected from metal discs attached to the backs of the explosive targets. These measured and calculated pressure histories show that the threshold for hot spot growth in LX-17 is 7 GPa, that LX-17 can be dead pressed at slightly lower pressures, and that the reaction rates behind reflected shocks increase greatly as the impedance of the metal increases. A study of the response of LX-17 to the collision of two reacting, diverging shocks forming a Mach stem wave inside the LX-17 charge demonstrated that this interaction can result in a high pressure region of sufficient size and strength to cause detonation under certain conditions.

  6. Solids mass flow determination

    DOE Patents [OSTI]

    Macko, Joseph E.

    1981-01-01

    Method and apparatus for determining the mass flow rate of solids mixed with a transport fluid to form a flowing mixture. A temperature differential is established between the solids and fluid. The temperature of the transport fluid prior to mixing, the temperature of the solids prior to mixing, and the equilibrium temperature of the mixture are monitored and correlated in a heat balance with the heat capacities of the solids and fluid to determine the solids mass flow rate.

  7. Polyoxometalate flow battery

    DOE Patents [OSTI]

    Anderson, Travis M.; Pratt, Harry D.

    2016-03-15

    Flow batteries including an electrolyte of a polyoxometalate material are disclosed herein. In a general embodiment, the flow battery includes an electrochemical cell including an anode portion, a cathode portion and a separator disposed between the anode portion and the cathode portion. Each of the anode portion and the cathode portion comprises a polyoxometalate material. The flow battery further includes an anode electrode disposed in the anode portion and a cathode electrode disposed in the cathode portion.

  8. Next generation safeguards initiative university outreach: the...

    Office of Scientific and Technical Information (OSTI)

    Next generation safeguards initiative university outreach: the unique Los Alamos and the ... Title: Next generation safeguards initiative university outreach: the unique Los Alamos ...

  9. Energy Data Initiative | Open Energy Information

    Open Energy Info (EERE)

    Energy Data Initiative Jump to: navigation, search Energy Data Initiative Crystal Clear filesystem socket.png Energy Data Jam Crystal Clear filesystem socket.png Energy Datapalooza...

  10. The Initiation of Bacterial DNA Replication

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

    The Initiation of Bacterial DNA Replication Print For the first time, scientists have determined the structure of the initiator of bacterial DNA replication. It is already known...

  11. The Initiation of Bacterial DNA Replication

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

    The Initiation of Bacterial DNA Replication The Initiation of Bacterial DNA Replication Print Wednesday, 31 January 2007 00:00 For the first time, scientists have determined the...

  12. Clean Coal Power Initiative | Department of Energy

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

    Clean Coal Power Initiative Clean Coal Power Initiative "Clean coal technology" describes a new generation of energy processes that sharply reduce air emissions and other ...

  13. National Geothermal Data System (NGDS) Initiative | Department...

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

    Geothermal Data System (NGDS) Initiative National Geothermal Data System (NGDS) Initiative Geothermal energy in the subsurface is better understood through data visualization, as ...

  14. Clean Energy Manufacturing Initiative Southeast Regional Summit...

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

    Clean Energy Manufacturing Initiative Southeast Regional Summit Clean Energy Manufacturing Initiative Southeast Regional Summit July 9, 2015 8:30AM to 6:00PM EDT Renaissance...

  15. Carbon Sequestration Initiative CSI | Open Energy Information

    Open Energy Info (EERE)

    Sequestration Initiative CSI Jump to: navigation, search Name: Carbon Sequestration Initiative (CSI) Place: Cambridge, Massachusetts Zip: MA 02139-4307 Sector: Carbon Product:...

  16. Interconnection-Wide Transmission Planning Initiative - Meeting...

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

    Interconnection-Wide Transmission Planning Initiative - Meeting Calendars Interconnection-Wide Transmission Planning Initiative - Meeting Calendars Click on the links below to ...

  17. Upcoming Clean Energy Manufacturing Initiative (CEMI) Southeast...

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

    Upcoming Clean Energy Manufacturing Initiative (CEMI) Southeast Regional Summit on July 9 in Atlanta, GA Upcoming Clean Energy Manufacturing Initiative (CEMI) Southeast Regional ...

  18. Climate Technology Initiative (CTI) | Open Energy Information

    Open Energy Info (EERE)

    search Logo: Climate Technology Initiative Name: Climate Technology Initiative Place: Japan Year Founded: 1995 Website: www.climatetech.net Coordinates: 36.204824,...

  19. Energy Transition Initiative Energy Scenario Tool | Department...

    Energy Savers [EERE]

    Energy Transition Initiative Energy Scenario Tool Energy Transition Initiative Energy Scenario Tool The ETI Energy Scenario Tool helps communities analyze different pathways to ...

  20. Energy Innovation: Green Button Initiative Empowering Americans...

    Energy Savers [EERE]

    Energy Innovation: Green Button Initiative Empowering Americans to Save Energy and Money Energy Innovation: Green Button Initiative Empowering Americans to Save Energy and Money...

  1. California Low Carbon Fuels Infrastructure Investment Initiative...

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

    Low Carbon Fuels Infrastructure Investment Initiative California Low Carbon Fuels Infrastructure Investment Initiative 2012 DOE Hydrogen and Fuel Cells Program and Vehicle ...

  2. Climate Policy Initiative | Open Energy Information

    Open Energy Info (EERE)

    Initiative Jump to: navigation, search Name: Climate Policy Initiative Address: 235 Montgomery Street, 13th Floor San Francisco, CA 94104 Place: San Francisco, California Website:...

  3. Florida Hydrogen Initiative Inc | Open Energy Information

    Open Energy Info (EERE)

    Hydrogen Initiative Inc Jump to: navigation, search Name: Florida Hydrogen Initiative Inc Place: Florida Sector: Hydro, Hydrogen Product: Provides grants to aid the development of...

  4. Multiple sort flow cytometer

    DOE Patents [OSTI]

    Van den Engh, Ger (Seattle, WA); Esposito, Richard J. (Seattle, WA)

    1996-01-01

    A flow cytometer utilizes multiple lasers for excitation and respective fluorescence of identified dyes bonded to specific cells or events to identify and verify multiple events to be sorted from a sheath flow and droplet stream. Once identified, verified and timed in the sheath flow, each event is independently tagged upon separation from the flow by an electrical charge of +60, +120, or +180 volts and passed through oppositely charged deflection plates with ground planes to yield a focused six way deflection of at least six events in a narrow plane.

  5. Multiple sort flow cytometer

    DOE Patents [OSTI]

    Engh, G. van den; Esposito, R.J.

    1996-01-09

    A flow cytometer utilizes multiple lasers for excitation and respective fluorescence of identified dyes bonded to specific cells or events to identify and verify multiple events to be sorted from a sheath flow and droplet stream. Once identified, verified and timed in the sheath flow, each event is independently tagged upon separation from the flow by an electrical charge of +60, +120, or +180 volts and passed through oppositely charged deflection plates with ground planes to yield a focused six way deflection of at least six events in a narrow plane. 8 figs.

  6. Excess flow shutoff valve

    DOE Patents [OSTI]

    Kiffer, Micah S.; Tentarelli, Stephen Clyde

    2016-02-09

    Excess flow shutoff valve comprising a valve body, a valve plug, a partition, and an activation component where the valve plug, the partition, and activation component are disposed within the valve body. A suitable flow restriction is provided to create a pressure difference between the upstream end of the valve plug and the downstream end of the valve plug when fluid flows through the valve body. The pressure difference exceeds a target pressure difference needed to activate the activation component when fluid flow through the valve body is higher than a desired rate, and thereby closes the valve.

  7. AVAILABLE ONLINE AT: INITIATED BY:

    National Nuclear Security Administration (NNSA)

    INITIATED BY: http://nnsa.energy.gov Office of Information Management and the Chief Information Officer NNSA Policy Letter Approved: 12-14-12 Baseline Cyber Security Program NATIONAL NUCLEAR SECURITY ADMINISTRATION Office of Information Management and the Chief Information Officer NAP-14.1-D THIS PAGE INTENTIONALLY LEFT BLANK NAP-14.1-D 1 12-14-12 BASELINE CYBER SECURITY PROGRAM 1. PURPOSE. The purpose of this Policy is to provide an integrated organization-wide Risk Management Approach (RMA),

  8. Initial Decision and Risk Analysis

    SciTech Connect (OSTI)

    Engel, David W.

    2012-02-29

    Decision and Risk Analysis capabilities will be developed for industry consideration and possible adoption within Year 1. These tools will provide a methodology for merging qualitative ranking of technology maturity and acknowledged risk contributors with quantitative metrics that drive investment decision processes. Methods and tools will be initially introduced as applications to the A650.1 case study, but modular spreadsheets and analysis routines will be offered to industry collaborators as soon as possible to stimulate user feedback and co-development opportunities.

  9. Practical Analysis of materials with depth varying compositions using FT-IR photoacoustic spectroscopy (PAS)

    SciTech Connect (OSTI)

    J.F. McClelland; R.W. Jones; Siquan Luo

    2004-09-30

    FT-IR photoacoustic spectroscopy (PAS) is discussed as a nondestructive method to probe the molecular composition of materials versus depth on the basis of the analysis of layers of experimentally controllable thickness, which are measured from the sample surface to depths of some tens of micrometers, depending on optical and thermal properties. Computational methods are described to process photoacoustic amplitude and phase spectra for both semi-quantitative and quantitative depth analyses. These methods are demonstrated on layered and gradient samples.

  10. Instream Flow Project

    Broader source: Energy.gov [DOE]

    As a part of the Department of Energy’s Water Power Program, the Instream Flow Project was carried out by Oak Ridge National Laboratory, Pacific Northwest National Laboratory, and Argonne National Laboratory to develop tools aimed at defining environmental flow needs for hydropower operations.

  11. Elbow mass flow meter

    DOE Patents [OSTI]

    McFarland, A.R.; Rodgers, J.C.; Ortiz, C.A.; Nelson, D.C.

    1994-08-16

    The present invention includes a combination of an elbow pressure drop generator and a shunt-type mass flow sensor for providing an output which gives the mass flow rate of a gas that is nearly independent of the density of the gas. For air, the output is also approximately independent of humidity. 3 figs.

  12. Microelectromechanical flow control apparatus

    DOE Patents [OSTI]

    Okandan, Murat

    2009-06-02

    A microelectromechanical (MEM) flow control apparatus is disclosed which includes a fluid channel formed on a substrate from a first layer of a nonconducting material (e.g. silicon nitride). A first electrode is provided on the first layer of the nonconducting material outside the flow channel; and a second electrode is located on a second layer of the nonconducting material above the first layer. A voltage applied between the first and second electrodes deforms the fluid channel to increase its cross-sectional size and thereby increase a flow of a fluid through the channel. In certain embodiments of the present invention, the fluid flow can be decreased or stopped by applying a voltage between the first electrode and the substrate. A peristaltic pumping of the fluid through the channel is also possible when the voltage is applied in turn between a plurality of first electrodes and the substrate. A MEM flow control assembly can also be formed by providing one or more MEM flow control devices on a common substrate together with a submicron filter. The MEM flow control assembly can optionally include a plurality of pressure sensors for monitoring fluid pressure and determining flow rates through the assembly.

  13. Width effects in transonic flow over a rectangular cavity

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

    Beresh, Steven J.; Wagner, Justin L.; Henfling, John F.; Spillers, Russell Wayne; Pruett, Brian Owen Matthew

    2015-07-24

    A previous experiment by the present authors studied the flow over a finite-width rectangular cavity at freestream Mach numbers 1.5–2.5. In addition, this investigation considered the influence of three-dimensional geometry that is not replicated by simplified cavities that extend across the entire wind-tunnel test section. The latter configurations have the attraction of easy optical access into the depths of the cavity, but they do not reproduce effects upon the turbulent structures and acoustic modes due to the length-to-width ratio, which is becoming recognized as an important parameter describing the nature of the flow within narrower cavities.

  14. Sunshine State Solar Grid Initiative (SUNGRIN)

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

    rise due to reverse power flow Voltage fluctuations associated with solar irradiation variation Interaction of voltage regulation devices Protection coordination...

  15. Global Threat Reduction Initiative | Department of Energy

    Energy Savers [EERE]

    An overview of the Global Threat Reduction Initiative, U.S.-Origin Nuclear Fuel Removals.

  16. Corrosion fatigue crack growth in clad low-alloy steel. Part 2, Water flow rate effects in high sulfur plate steel

    SciTech Connect (OSTI)

    James, L.A; Lee, H.B.; Wire, G.L.; Novak, S.R.; Cullen, W.H.

    1996-04-01

    Corrosion fatigue crack propagation tests were conducted on a high- sulfur ASTM A302-B plate steel overlaid with weld-deposited Alloy EN82H cladding. The specimens featured semi-elliptical surface cracks penetrating approximately 6.3 mm of cladding into the underlying steel. The initial crack sizes were relatively large with surface lengths of 22.8--27.3 mm, and depths of 10.5--14.1 mm. The experiments were initiated in a quasi-stagnant low-oxygen (O{sub 2} < 10 ppb) aqueous environment at 243{degrees}C, under loading conditions ({Delta}K, R, cyclic frequency) conducive to environmentally-assisted cracking (EAC) under quasi-stagnant conditions. Following fatigue testing under quasi-stagnant conditions where EAC was observed, the specimens were then fatigue tested under conditions where active water flow of either 1.7 m/sec. or 4.7 m/sec. was applied parallel to the crack. Earlier experiments on unclad surface-cracked specimens of the same steel exhibited EAC under quasi- stagnant conditions, but water flow rates at 1.7 m/sec. and 5.0 m/sec. parallel to the crack mitigated EAC. In the present experiments on clad specimens, water flow at approximately the same as the lower of these velocities did not mitigate EAC, and a free stream velocity approximately the same as the higher of these velocities resulted in sluggish mitigation of EAC. The lack of robust EAC mitigation was attributed to the greater crack surface roughness in the cladding interfering with flow induced within the crack cavity. An analysis employing the computational fluid dynamics code, FIDAP, confirmed that frictional forces associated with the cladding crack surface roughness reduced the interaction between the free stream and the crack cavity.

  17. Plug-in Hybrid Initiative

    SciTech Connect (OSTI)

    Goodman, Angie; Moore, Ray; Rowden, Tim

    2013-09-27

    Our main project objective was to implement Plug-in Electric Vehicles (PEV) and charging infrastructure into our electric distribution service territory and help reduce barriers in the process. Our research demonstrated the desire for some to be early adopters of electric vehicles and the effects lack of education plays on others. The response of early adopters was tremendous: with the initial launch of our program we had nearly 60 residential customers interested in taking part in our program. However, our program only allowed for 15 residential participants. Our program provided assistance towards purchasing a PEV and installation of Electric Vehicle Supply Equipment (EVSE). The residential participants have all come to love their PEVs and are more than enthusiastic about promoting the many benefits of driving electric.

  18. QER- Comment of Environmental Initiative

    Broader source: Energy.gov [DOE]

    Dear Office of Energy Policy and Systems Analysis, I lead a series of annual environmental policy forums that target the leaders within the Minnesota environmental and energy policy community (http://www.environmental-initiative.org/projects/policy-forum-series), and our next forum (on Sept. 24th) will be focused on the risks and rewards associated with fuel transport to/through Minnesota, as well as what policy decisions and trade-offs we are facing as a state. I am looking for a speaker to open the four-hour forum who can provide broader context on the issue of fuel transport infrastructure, as well as speak to federal vs. state jurisdiction and both the big-picture/long-term and the immediate on-the-ground trade-offs.

  19. Bypass flow computations on the LOFA transient in a VHTR

    SciTech Connect (OSTI)

    Tung, Yu-Hsin; Johnson, Richard W.; Ferng, Yuh-Ming; Chieng, Ching-Chang

    2014-01-01

    Bypass flow in the prismatic gas-cooled very high temperature reactor (VHTR) is not intentionally designed to occur, but is present in the gaps between graphite blocks. Previous studies of the bypass flow in the core indicated that the cooling provided by flow in the bypass gaps had a significant effect on temperature and flow distributions for normal operating conditions. However, the flow and heat transports in the core are changed significantly after a Loss of Flow Accident (LOFA). This study aims to study the effect and role of the bypass flow after a LOFA in terms of the temperature and flow distributions and for the heat transport out of the core by natural convection of the coolant for a 1/12 symmetric section of the active core which is composed of images and mirror images of two sub-region models. The two sub-region models, 9 x 1/12 and 15 x 1/12 symmetric sectors of the active core, are employed as the CFD flow models using computational grid systems of 70.2 million and 117 million nodes, respectively. It is concluded that the effect of bypass flow is significant for the initial conditions and the beginning of LOFA, but the bypass flow has little effect after a long period of time in the transient computation of natural circulation.

  20. Minorities in Energy Initiative | Department of Energy

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

    Services » Minorities in Energy Initiative Minorities in Energy Initiative Minorities in Energy Initiative The Minorities in Energy Initiative addresses the needs of underrepresented communities in the energy sector and aligns with President Obama's agenda for engaging more Americans in energy and science, technology, engineering, and math fields. The Minorities in Energy Initiative, guided by the U.S. Department of Energy's Office of Economic Impact and Diversity, seeks to create a

  1. Minorities in Energy Initiative | Department of Energy

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

    Initiative Minorities in Energy Initiative Minorities in Energy Initiative The Minorities in Energy Initiative addresses the needs of underrepresented communities in the energy sector and aligns with President Obama's agenda for engaging more Americans in energy and science, technology, engineering, and math fields. The Minorities in Energy Initiative, guided by the U.S. Department of Energy's Office of Economic Impact and Diversity, seeks to create a substantive, sustainable model that connects

  2. DEPTH-CHARGE static and time-dependent perturbation/sensitivity system for nuclear reactor core analysis. Revision I. [DEPTH-CHARGE code

    SciTech Connect (OSTI)

    White, J.R.

    1985-04-01

    This report provides the background theory, user input, and sample problems required for the efficient application of the DEPTH-CHARGE system - a code black for both static and time-dependent perturbation theory and data sensitivity analyses. The DEPTH-CHARGE system is of modular construction and has been implemented within the VENTURE-BURNER computational system at Oak Ridge National Laboratory. The DEPTH module (coupled with VENTURE) solves for the three adjoint functions of Depletion Perturbation Theory and calculates the desired time-dependent derivatives of the response with respect to the nuclide concentrations and nuclear data utilized in the reference model. The CHARGE code is a collection of utility routines for general data manipulation and input preparation and considerably extends the usefulness of the system through the automatic generation of adjoint sources, estimated perturbed responses, and relative data sensitivity coefficients. Combined, the DEPTH-CHARGE system provides, for the first time, a complete generalized first-order perturbation/sensitivity theory capability for both static and time-dependent analyses of realistic multidimensional reactor models. This current documentation incorporates minor revisions to the original DEPTH-CHARGE documentation (ORNL/CSD-78) to reflect some new capabilities within the individual codes.

  3. Method for determining depth and shape of a sub-surface conductive object

    DOE Patents [OSTI]

    Lee, D.O.; Montoya, P.C.; Wayland, Jr.

    1984-06-27

    The depth to and size of an underground object may be determined by sweeping a controlled source audio magnetotelluric (CSAMT) signal and locating a peak response when the receiver spans the edge of the object. The depth of the object is one quarter wavelength in the subsurface media of the frequency of the peak. 3 figures.

  4. Two weight system for measuring depth and sediment in slurry-supported excavations

    SciTech Connect (OSTI)

    Deming, P.; Good, D.

    1999-07-01

    This paper describes a two weight system using bar and flat shaped weights for measuring depth and detecting sediment at the bottom of slurry-supported excavations. Currently there are no standard depth measurement weights or methods for reliably identifying bottom sediment. Two weights and a procedural system for using the weights is described. Details suitable for manufacture are provided.

  5. Grid Generator for Two, Three-dimensional Finite Element Subsurface Flow Models

    Energy Science and Technology Software Center (OSTI)

    1993-04-28

    GRIDMAKER serves as a preprocessor for finite element models in solving two- and three-dimensional subsurface flow and pollutant transport problems. It is designed to generate three-point triangular or four-point quadrilateral elements for two-dimensional domains and eight-point hexahedron elements for three-dimensional domains. A two-dimensional domain of an aquifer with a variable depth layer is treated as a special case for depth-integrated two-dimensional, finite element subsurface flow models. The program accommodates the need for aquifers with heterogeneousmore » systems by identifying the type of material in each element.« less

  6. Development of a Water Based, Critical Flow, Non-Vapor Compression cooling Cycle

    SciTech Connect (OSTI)

    Hosni, Mohammad H.

    2014-03-30

    Expansion of a high-pressure liquid refrigerant through the use of a thermostatic expansion valve or other device is commonplace in vapor-compression cycles to regulate the quality and flow rate of the refrigerant entering the evaporator. In vapor-compression systems, as the condensed refrigerant undergoes this expansion, its pressure and temperature drop, and part of the liquid evaporates. We (researchers at Kansas State University) are developing a cooling cycle that instead pumps a high-pressure refrigerant through a supersonic converging-diverging nozzle. As the liquid refrigerant passes through the nozzle, its velocity reaches supersonic (or critical-flow) conditions, substantially decreasing the refrigerant’s pressure. This sharp pressure change vaporizes some of the refrigerant and absorbs heat from the surrounding conditions during this phase change. Due to the design of the nozzle, a shockwave trips the supersonic two-phase refrigerant back to the starting conditions, condensing the remaining vapor. The critical-flow refrigeration cycle would provide space cooling, similar to a chiller, by running a secondary fluid such as water or glycol over one or more nozzles. Rather than utilizing a compressor to raise the pressure of the refrigerant, as in a vapor-cycle system, the critical-flow cycle utilizes a high-pressure pump to drive refrigerant liquid through the cooling cycle. Additionally, the design of the nozzle can be tailored for a given refrigerant, such that environmentally benign substances can act as the working fluid. This refrigeration cycle is still in early-stage development with prototype development several years away. The complex multi-phase flow at supersonic conditions presents numerous challenges to fully understanding and modeling the cycle. With the support of DOE and venture-capital investors, initial research was conducted at PAX Streamline, and later, at Caitin. We (researchers at Kansas State University) have continued development of the cycle and have gained an in-depth understanding of the governing fundamental knowledge, based on the laws of physics and thermodynamics and verified with our testing results. Through this research, we are identifying optimal working fluid and operating conditions to eventually demonstrate the core technology for space cooling or other applications.

  7. Progress in the Development of Compressible, Multiphase Flow Modeling Capability for Nuclear Reactor Flow Applications

    SciTech Connect (OSTI)

    R. A. Berry; R. Saurel; F. Petitpas; E. Daniel; O. Le Metayer; S. Gavrilyuk; N. Dovetta

    2008-10-01

    In nuclear reactor safety and optimization there are key issues that rely on in-depth understanding of basic two-phase flow phenomena with heat and mass transfer. Within the context of multiphase flows, two bubble-dynamic phenomena boiling (heterogeneous) and flashing or cavitation (homogeneous boiling), with bubble collapse, are technologically very important to nuclear reactor systems. The main difference between boiling and flashing is that bubble growth (and collapse) in boiling is inhibited by limitations on the heat transfer at the interface, whereas bubble growth (and collapse) in flashing is limited primarily by inertial effects in the surrounding liquid. The flashing process tends to be far more explosive (and implosive), and is more violent and damaging (at least in the near term) than the bubble dynamics of boiling. However, other problematic phenomena, such as crud deposition, appear to be intimately connecting with the boiling process. In reality, these two processes share many details.

  8. Colorado Heat Flow Data from IHFC

    SciTech Connect (OSTI)

    Zehner, Richard E.

    2012-02-01

    Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Originator: The International Heat Flow Commission (IHFC) Publication Date: 2012 Title: Colorado IHFC Data Edition: First Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: Abstract: This layer contains the heat flow sites and data of the State of Colorado compiled from the International Heat Flow Commission (IHFC) of the International Association of Seismology and Physics of the Earth's Interior (IASPEI) global heat flow database (www.heatflow.und.edu/index2.html). The data include different items: Item number, descriptive code, name of site, latitude and longitude, elevation, depth interval, number of temperature data, temperature gradient, number of conductivity measurement, average conductivity, number of heat generation measurements, average heat production, heat flow, number of individual sites, references, and date of publication. Spatial Domain: Extent: Top: 4522121.800672 m Left: 165356.134075 m Right: 621836.776246 m Bottom: 4097833.419676 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude Of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System 1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

  9. Shroud leakage flow discouragers

    DOE Patents [OSTI]

    Bailey, Jeremy Clyde; Bunker, Ronald Scott

    2002-01-01

    A turbine assembly includes a plurality of rotor blades comprising a root portion, an airfoil having a pressure sidewall and a suction sidewall, and a top portion having a cap. An outer shroud is concentrically disposed about said rotor blades, said shroud in combination with said tip portions defining a clearance gap. At least one circumferential shroud leakage discourager is disposed within the shroud. The leakage discourager(s) increase the flow resistance and thus reduce the flow of hot gas flow leakage for a given pressure differential across the clearance gap to improve overall turbine efficiency.

  10. Tank depletion flow controller

    DOE Patents [OSTI]

    Georgeson, Melvin A.

    1976-10-26

    A flow control system includes two bubbler tubes installed at different levels within a tank containing such as radioactive liquid. As the tank is depleted, a differential pressure transmitter monitors pressure differences imparted by the two bubbler tubes at a remote, shielded location during uniform time intervals. At the end of each uniform interval, balance pots containing a dense liquid are valved together to equalize the pressures. The resulting sawtooth-shaped signal generated by the differential pressure transmitter is compared with a second sawtooth signal representing the desired flow rate during each time interval. Variations in the two signals are employed by a control instrument to regulate flow rate.

  11. Initial validation of FORCE2

    SciTech Connect (OSTI)

    Burge, S.W.

    1991-06-01

    Erosion has been identified as one of the significant design issues in fluid beds. A cooperative R&D venture of industry, research, and government organizations was recently formed to meet the industry need for a better understanding of erosion in fluid beds. Research focussed on bed hydrodynamics, which are considered to be the primary erosion mechanism. As part of this work, ANL developed an analytical model (FLUFIX) for bed hydrodynamics. Partial validation was performed using data from experiments sponsored by the research consortium. Development of a three-dimensional fluid bed hydrodynamic model was part of Asea-Babcock`s in-kind contribution to the R&D venture. This model, FORCE2, was developed by Babcock & Wilcox`s Research and Development Division existing B&W program and on the gas-solids modeling and was based on an existing B&W program and on the gas-solids modeling technology developed by ANL and others. FORCE2 contains many of the features needed to model plant size beds and, therefore can be used along with the erosion technology to assess metal wastage in industrial equipment. As part of the development efforts, FORCE2 was partially validated using ANL`s two-dimensional model, FLUFIX, and experimental data. Time constraints as well as the lack of good hydrodynamic data, particularly at the plant scale, prohibited a complete validation of FORCE2. This report describes this initial validation of FORCE2.

  12. Electrical initiation of an energetic nanolaminate film

    DOE Patents [OSTI]

    Tringe, Joseph W.; Gash, Alexander E.; Barbee, Jr., Troy W.

    2010-03-30

    A heating apparatus comprising an energetic nanolaminate film that produces heat when initiated, a power source that provides an electric current, and a control that initiates the energetic nanolaminate film by directing the electric current to the energetic nanolaminate film and joule heating the energetic nanolaminate film to an initiation temperature. Also a method of heating comprising providing an energetic nanolaminate film that produces heat when initiated, and initiating the energetic nanolaminate film by directing an electric current to the energetic nanolaminate film and joule heating the energetic nanolaminate film to an initiation temperature.

  13. Complex Flow Workshop Report

    SciTech Connect (OSTI)

    none,

    2012-05-01

    This report documents findings from a workshop on the impacts of complex wind flows in and out of wind turbine environments, the research needs, and the challenges of meteorological and engineering modeling at regional, wind plant, and wind turbine scales.

  14. Parallel flow diffusion battery

    DOE Patents [OSTI]

    Yeh, Hsu-Chi; Cheng, Yung-Sung

    1984-08-07

    A parallel flow diffusion battery for determining the mass distribution of an aerosol has a plurality of diffusion cells mounted in parallel to an aerosol stream, each diffusion cell including a stack of mesh wire screens of different density.

  15. Parallel flow diffusion battery

    DOE Patents [OSTI]

    Yeh, H.C.; Cheng, Y.S.

    1984-01-01

    A parallel flow diffusion battery for determining the mass distribution of an aerosol has a plurality of diffusion cells mounted in parallel to an aerosol stream, each diffusion cell including a stack of mesh wire screens of different density.

  16. Electrochemical flow capacitors

    DOE Patents [OSTI]

    Gogotsi, Yury; Presser, Volker; Kumbar, Emin Caglan

    2015-11-05

    The present invention generally relates to devices for energy storage technologies, and more particularly to electrochemical flow capacitor systems and applications. In some aspects, these flow capacitors have at least one electrode comprising a non-stationary solid or semi-solid composition comprising supercapacitive particles and an electrolytic solvent in electrical communication with at least one current collector, and energy is stored and/or released by charging and/or discharging the electrode(s).

  17. Electrochemical flow capacitors

    DOE Patents [OSTI]

    Gogotsi, Yury; Presser, Volker; Kumbur, Emin Caglan

    2015-10-27

    The present invention generally relates to devices for energy storage technologies, and more particularly to electrochemical flow capacitor systems and applications. In some aspects, these flow capacitors have at least one electrode comprising a non-stationary solid or semi-solid composition comprising supercapacitive particles and an electrolytic solvent in electrical communication with at least one current collector, and energy is stored and/or released by charging and/or discharging the electrode(s).

  18. AnalyzeHOLE: An Integrated Wellbore Flow Analysis Tool

    SciTech Connect (OSTI)

    Keith J. Halford

    2009-10-01

    Conventional interpretation of flow logs assumes that hydraulic conductivity is directly proportional to flow change with depth. However, well construction can significantly alter the expected relation between changes in fluid velocity and hydraulic conductivity. Strong hydraulic conductivity contrasts between lithologic intervals can be masked in continuously screened wells. Alternating intervals of screen and blank casing also can greatly complicate the relation between flow and hydraulic properties. More permeable units are not necessarily associated with rapid fluid-velocity increases. Thin, highly permeable units can be misinterpreted as thick and less permeable intervals or not identified at all. These conditions compromise standard flow-log interpretation because vertical flow fields are induced near the wellbore. AnalyzeHOLE, an integrated wellbore analysis tool for simulating flow and transport in wells and aquifer systems, provides a better alternative for simulating and evaluating complex well-aquifer system interaction. A pumping well and adjacent aquifer system are simulated with an axisymmetric, radial geometry in a two-dimensional MODFLOW model. Hydraulic conductivities are distributed by depth and estimated with PEST by minimizing squared differences between simulated and measured flows and drawdowns. Hydraulic conductivity can vary within a lithology but variance is limited with regularization. Transmissivity of the simulated system also can be constrained to estimates from single-well, pumping tests. Water-quality changes in the pumping well are simulated with simple mixing models between zones of differing water quality. These zones are differentiated by backtracking thousands of particles from the well screens with MODPATH. An Excel spreadsheet is used to interface the various components of AnalyzeHOLE by (1) creating model input files, (2) executing MODFLOW, MODPATH, PEST, and supporting FORTRAN routines, and (3) importing and graphically displaying pertinent results.

  19. Magnetically stimulated fluid flow patterns

    SciTech Connect (OSTI)

    Martin, Jim; Solis, Kyle

    2014-03-06

    Sandia National Laboratories' Jim Martin and Kyle Solis explain research on the effects of magnetic fields on fluid flows and how they stimulate vigorous flows. Fluid flow is a necessary phenomenon in everything from reactors to cooling engines in cars.

  20. Magnetically stimulated fluid flow patterns

    ScienceCinema (OSTI)

    Martin, Jim; Solis, Kyle

    2014-08-06

    Sandia National Laboratories' Jim Martin and Kyle Solis explain research on the effects of magnetic fields on fluid flows and how they stimulate vigorous flows. Fluid flow is a necessary phenomenon in everything from reactors to cooling engines in cars.

  1. DETECTION OF EQUATORWARD MERIDIONAL FLOW AND EVIDENCE OF DOUBLE-CELL MERIDIONAL CIRCULATION INSIDE THE SUN

    SciTech Connect (OSTI)

    Zhao Junwei; Bogart, R. S.; Kosovichev, A. G.; Hartlep, Thomas; Duvall, T. L. Jr.

    2013-09-10

    Meridional flow in the solar interior plays an important role in redistributing angular momentum and transporting magnetic flux inside the Sun. Although it has long been recognized that the meridional flow is predominantly poleward at the Sun's surface and in its shallow interior, the location of the equatorward return flow and the meridional flow profile in the deeper interior remain unclear. Using the first 2 yr of continuous helioseismology observations from the Solar Dynamics Observatory/Helioseismic Magnetic Imager, we analyze travel times of acoustic waves that propagate through different depths of the solar interior carrying information about the solar interior dynamics. After removing a systematic center-to-limb effect in the helioseismic measurements and performing inversions for flow speed, we find that the poleward meridional flow of a speed of 15 m s{sup -1} extends in depth from the photosphere to about 0.91 R{sub Sun }. An equatorward flow of a speed of 10 m s{sup -1} is found between 0.82 and 0.91 R{sub Sun} in the middle of the convection zone. Our analysis also shows evidence of that the meridional flow turns poleward again below 0.82 R{sub Sun }, indicating an existence of a second meridional circulation cell below the shallower one. This double-cell meridional circulation profile with an equatorward flow shallower than previously thought suggests a rethinking of how magnetic field is generated and redistributed inside the Sun.

  2. Dynamic Multiscale Averaging (DMA) of Turbulent Flow

    SciTech Connect (OSTI)

    Richard W. Johnson

    2012-09-01

    A new approach called dynamic multiscale averaging (DMA) for computing the effects of turbulent flow is described. The new method encompasses multiple applications of temporal and spatial averaging, that is, multiscale operations. Initially, a direct numerical simulation (DNS) is performed for a relatively short time; it is envisioned that this short time should be long enough to capture several fluctuating time periods of the smallest scales. The flow field variables are subject to running time averaging during the DNS. After the relatively short time, the time-averaged variables are volume averaged onto a coarser grid. Both time and volume averaging of the describing equations generate correlations in the averaged equations. These correlations are computed from the flow field and added as source terms to the computation on the next coarser mesh. They represent coupling between the two adjacent scales. Since they are computed directly from first principles, there is no modeling involved. However, there is approximation involved in the coupling correlations as the flow field has been computed for only a relatively short time. After the time and spatial averaging operations are applied at a given stage, new computations are performed on the next coarser mesh using a larger time step. The process continues until the coarsest scale needed is reached. New correlations are created for each averaging procedure. The number of averaging operations needed is expected to be problem dependent. The new DMA approach is applied to a relatively low Reynolds number flow in a square duct segment. Time-averaged stream-wise velocity and vorticity contours from the DMA approach appear to be very similar to a full DNS for a similar flow reported in the literature. Expected symmetry for the final results is produced for the DMA method. The results obtained indicate that DMA holds significant potential in being able to accurately compute turbulent flow without modeling for practical engineering applications.

  3. Solar Energy Initiatives Inc | Open Energy Information

    Open Energy Info (EERE)

    Initiatives Inc Jump to: navigation, search Name: Solar Energy Initiatives Inc Place: St. Johns, Florida Zip: 32082 Sector: Solar Product: US-based PV and solar thermal and PV...

  4. Ohio Fuel Cell Initiative | Department of Energy

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

    Ohio Fuel Cell Initiative Ohio Fuel Cell Initiative Presented at the Technology Transition Corporation and U.S. Department of Energy Webinar: The Top 5 Fuel Cell States: Why Local ...

  5. Depth Profiling of SiC Lattice Damage Using Micro-Raman Spectroscopy

    Office of Scientific and Technical Information (OSTI)

    (Conference) | SciTech Connect Depth Profiling of SiC Lattice Damage Using Micro-Raman Spectroscopy Citation Details In-Document Search Title: Depth Profiling of SiC Lattice Damage Using Micro-Raman Spectroscopy Depth profiling for the amount of lattice damage using a Confocal Micro-Raman (CMR) spectrometer is demonstrated in this paper. Samples of n-type silicon carbide were implanted with 2 MeV He and O ions at both room temperature and 500 C, and fluences between 10{sup 15} and 10{sup 17}

  6. Clean Energy Manufacturing Initiative Industrial Efficiency and...

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

    Industrial Efficiency and Energy Productivity Video Clean Energy Manufacturing Initiative Industrial Efficiency and Energy Productivity Video Addthis Description Industrial ...

  7. Energy Transition Initiative | Department of Energy

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

    Energy Transition Initiative Energy Transition Initiative Energy Transition Initiative Through the Energy Transition Initiative (ETI), the U.S. Department of Energy and its partners work with government entities and other stakeholders to establish a long-term energy vision and successfully implement energy efficiency and renewable energy solutions. ETI provides a proven framework and technical resources and tools to help islands, states, and cities transition to a clean energy economy and

  8. Graduate Automotive Technology Education (GATE) Initiative Awards |

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

    Department of Energy Graduate Automotive Technology Education (GATE) Initiative Awards Graduate Automotive Technology Education (GATE) Initiative Awards September 8, 2011 - 11:46am Addthis Graduate Automotive Technology Education (GATE) Initiative Awards DOE's Graduate Automotive Technology Education (GATE) initiative will award $6.4 million over the course of five years to support seven Centers of Excellence at American colleges, universities, and university-affiliated research

  9. State and Regional Initiatives Meeting Series Archive

    Broader source: Energy.gov [DOE]

    Learn about past state and regional initiatives webinars, calls, meetings, and presentations through the descriptions and linked materials below.

  10. Innovative Manufacturing Initiative Recognition Day, Advanced...

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

    More Documents & Publications Innovative Manufacturing Initiative Recognition Day Advanced Manufacturing Office Overview Unlocking the Potential of Additive Manufacturing in the ...

  11. Voluntary Initiative: Partnerships Toolkit | Department of Energy

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

    PDF icon Voluntary Initiative: Partnerships Toolkit More Documents & Publications Better Buildings Residential Program Solution Center Demonstration Webinar Stakeholder Mapping: ...

  12. Clean Energy Manufacturing Initiative | Department of Energy

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

    Energy Manufacturing Initiative Clean Energy Manufacturing Initiative Clean Energy Manufacturing Initiative Industrial Efficiency and Energy Productivity Video Clean Energy Manufacturing Initiative Industrial Efficiency and Energy Productivity Video Industrial efficiency and low-cost energy resources are key components to increasing U.S. energy productivity and makes the U.S. manufacturing sector more competitive. Companies find a competitive advantage in implementing efficiency technologies and

  13. New Vehicle Initiative Aims to Make Fuel and Engines Work Together More

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

    Efficiently | Department of Energy Vehicle Initiative Aims to Make Fuel and Engines Work Together More Efficiently New Vehicle Initiative Aims to Make Fuel and Engines Work Together More Efficiently February 24, 2016 - 11:35am Addthis Researchers take laser-based velocity measurements at the Sandia National Laboratory's Combustion Research Facility. The measurements are used to help understand the flow features involved in the creation of in-cylinder carbon monoxide distributions in order to

  14. Clean Energy Manufacturing Initiative Midwest Regional Summit:

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

    Lightweighting Breakout Session Summary | Department of Energy Clean Energy Manufacturing Initiative Midwest Regional Summit: Lightweighting Breakout Session Summary Clean Energy Manufacturing Initiative Midwest Regional Summit: Lightweighting Breakout Session Summary Clean Energy Manufacturing Initiative Midwest Regional Summit: Lightweighting Breakout Session Summary June 21, 2013 PDF icon Lightweighting Breakout Session Summary More Documents & Publications Fiber Reinforced Polymer

  15. North American Synchrophasor Initiative (NASPI) Program Information |

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

    Department of Energy Synchrophasor Initiative (NASPI) Program Information North American Synchrophasor Initiative (NASPI) Program Information Summary of the Transmission Reliability program's North American Synchrophasor Initiative (NASPI) activity area. NASPI supports industry adoption of next-generation monitoring equipment to increase reliability and reduce costs for consumers through the development of secure, highspeed, time-synchronized data about bulk power system conditions. Visit

  16. GAP Flow Measurements During the Mesoscale Alpine Programme

    SciTech Connect (OSTI)

    Mayr, G.; Armi, L.; Arnold, S.; Banta, Robert M.; Darby, Lisa S.; Durran, D. D.; Flamant, C.; Gabersek, S.; Gohm, A.; Mayr, R.; Mobbs, S.; Nance, L. B.; Vergeiner, I.; Vergeiner, J.; Whiteman, Charles D.

    2004-04-30

    This article provides an overview of the Gap Flow sub-program of the Mesoscale Alpine Programme, a major international meteorological field experiment conducted in the European Alps. The article describes the initial results of an investigation of the wind flow through the Brenner Pass gap in the east-west oriented central section of the European Alps under conditions of south foehn. The overview describes the objectives of the experiments, the instrumentation used for the field investigation, and the mesoscale model simulations. Initial findings of the scientific program are provided.

  17. Clean Energy Infrastructure Educational Initiative

    SciTech Connect (OSTI)

    Hallinan, Kevin; Menart, James; Gilbert, Robert

    2012-08-31

    The Clean Energy Infrastructure Educational Initiative represents a collaborative effort by the University of Dayton, Wright State University and Sinclair Community College. This effort above all aimed to establish energy related programs at each of the universities while also providing outreach to the local, state-wide, and national communities. At the University of Dayton, the grant has aimed at: solidfying a newly created Master’s program in Renewable and Clean Energy; helping to establish and staff a regional sustainability organization for SW Ohio. As well, as the prime grantee, the University of Dayton was responsible for insuring curricular sharing between WSU and the University of Dayton. Finally, the grant, through its support of graduate students, and through cooperation with the largest utilities in SW Ohio enabled a region-wide evaluation of over 10,000 commercial building buildings in order to identify the priority buildings in the region for energy reduction. In each, the grant has achieved success. The main focus of Wright State was to continue the development of graduate education in renewable and clean energy. Wright State has done this in a number of ways. First and foremost this was done by continuing the development of the new Renewable and Clean Energy Master’s Degree program at Wright State . Development tasks included: continuing development of courses for the Renewable and Clean Energy Master’s Degree, increasing the student enrollment, and increasing renewable and clean energy research work. The grant has enabled development and/or improvement of 7 courses. Collectively, the University of Dayton and WSU offer perhaps the most comprehensive list of courses in the renewable and clean energy area in the country. Because of this development, enrollment at WSU has increased from 4 students to 23. Secondly, the grant has helped to support student research aimed in the renewable and clean energy program. The grant helped to solidify new research in the renewable and clean energy area. The educational outreach provided as a result of the grant included activities to introduce renewable and clean energy design projects into the Mechanical and Materials Engineering senior design class, the development of a geothermal energy demonstration unit, and the development of renewable energy learning modules for high school students. Finally, this grant supported curriculum development by Sinclair Community College for seven new courses and acquisition of necessary related instrumentation and laboratory equipment. These new courses, EGV 1201 Weatherization Training, EGV 1251 Introduction to Energy Management Principles, EGV 2301 Commercial and Industrial Assessment, EGV 2351 LEED Green Associate Exam Preparation, EGV 2251 Energy Control Strategies, EGV Solar Photovoltaic Design and Installation, and EGV Solar Thermal Systems, enable Sinclair to offer complete Energy Technology Certificate and an Energy Management Degree programs. To date, 151 students have completed or are currently registered in one of the seven courses developed through this grant. With the increasing interest in the Energy Management Degree program, Sinclair has begun the procedure to have the program approved by the Ohio Board of Regents.

  18. Piezoelectric axial flow microvalve

    DOE Patents [OSTI]

    Gemmen, Randall; Thornton, Jimmy; Vipperman, Jeffrey S.; Clark, William W.

    2007-01-09

    This invention is directed to a fuel cell operable with a quantity of fuel and a quantity of an oxidizer to produce electrical power, the fuel cell including a fuel cell body including a labyrinth system structured to permit the fuel and the oxidizer to flow therethrough; at least a first catalyst in fluid communication with the labyrinth; and at least a first microvalve operably disposed within at least a portion of the labyrinth. The microvalve utilizes a deflectable member operable upon the application of a voltage from a voltage source. The microvalve includes an elongated flow channel formed therein and extending substantially longitudinally between the first and second ends to permit substantially longitudinal flow of the fluid therethrough and between the first and second ends; and the deflectable member disposed on the valve body, the deflectable member including at least a first piezoelectric portion that is piezoelectrically operable to deflect the deflectable member between an open position and a closed position upon the application of a voltage, the deflectable member in the closed position being operable to resist the flow of the fluid through the flow channel.

  19. NREL Takes First In-Depth Look at Solar Project Completion Timelines...

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

    Takes First In-Depth Look at Solar Project Completion Timelines Report examines new data to show how long the PV interconnection process takes in the U.S. February 11, 2015 The ...

  20. Vehicle Technologies Office Merit Review 2014: Advanced Technology Vehicle Lab Benchmarking- Level 2 (in-depth)

    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 level 2 (in-depth...

  1. Method of varying a physical property of a material through its depth

    DOE Patents [OSTI]

    Daniel, Claus

    2015-04-21

    A method is disclosed for varying a mechanical property of a material at two depths. The method involves the application of at least two laser pulses of different durations. The method involves a determination of the density of the material from the surface to each depth, a determination of the heat capacity of the material from the surface to each depth, and a determination of the thermal conductivity of the material from the surface to each depth. Each laser pulse may affect the density, heat capacity, and thermal conductivity of the material, so it may be necessary to re-evaluate those parameters after each laser pulse and prior to the next pulse. The method may be applied to implantation materials to improve osteoblast and osteoclast activity.

  2. Depth Profile of Uncompensated Spins in an Exchange-Bias System

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

    A. Mishra, X. Zhang, K. Chesnel, J.B. Kortright, S.K. Sinha, and I.K. Schuller,, "Depth Profile of Uncompensated Spins in an Exchange Bias System," Phys. Rev. Lett. 95, 047201...

  3. Depth Profile of Uncompensated Spins in an Exchange-Bias System

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

    Depth Profile of Uncompensated Spins in an Exchange-Bias System Print The phenomenon known as exchange bias at the interface between a ferromagnet and an antiferromagnet is currently a subject of intense research because of its applications in the magnetic recording and read-head industries. An international collaboration headed by researchers from the University of California, San Diego, has used resonant x-ray scattering and polarized-neutron reflectometry to determine the depth-dependent

  4. Depth Profile of Uncompensated Spins in an Exchange-Bias System

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

    Depth Profile of Uncompensated Spins in an Exchange-Bias System Print The phenomenon known as exchange bias at the interface between a ferromagnet and an antiferromagnet is currently a subject of intense research because of its applications in the magnetic recording and read-head industries. An international collaboration headed by researchers from the University of California, San Diego, has used resonant x-ray scattering and polarized-neutron reflectometry to determine the depth-dependent

  5. Depth Profile of Uncompensated Spins in an Exchange-Bias System

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

    Depth Profile of Uncompensated Spins in an Exchange-Bias System Print The phenomenon known as exchange bias at the interface between a ferromagnet and an antiferromagnet is currently a subject of intense research because of its applications in the magnetic recording and read-head industries. An international collaboration headed by researchers from the University of California, San Diego, has used resonant x-ray scattering and polarized-neutron reflectometry to determine the depth-dependent

  6. Depth Profile of Uncompensated Spins in an Exchange-Bias System

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

    Depth Profile of Uncompensated Spins in an Exchange-Bias System Print The phenomenon known as exchange bias at the interface between a ferromagnet and an antiferromagnet is currently a subject of intense research because of its applications in the magnetic recording and read-head industries. An international collaboration headed by researchers from the University of California, San Diego, has used resonant x-ray scattering and polarized-neutron reflectometry to determine the depth-dependent

  7. Depth Profile of Uncompensated Spins in an Exchange-Bias System

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

    Depth Profile of Uncompensated Spins in an Exchange-Bias System Depth Profile of Uncompensated Spins in an Exchange-Bias System Print Wednesday, 25 January 2006 00:00 The phenomenon known as exchange bias at the interface between a ferromagnet and an antiferromagnet is currently a subject of intense research because of its applications in the magnetic recording and read-head industries. An international collaboration headed by researchers from the University of California, San Diego, has used

  8. Depth Profile of Uncompensated Spins in an Exchange-Bias System

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

    Depth Profile of Uncompensated Spins in an Exchange-Bias System Print The phenomenon known as exchange bias at the interface between a ferromagnet and an antiferromagnet is currently a subject of intense research because of its applications in the magnetic recording and read-head industries. An international collaboration headed by researchers from the University of California, San Diego, has used resonant x-ray scattering and polarized-neutron reflectometry to determine the depth-dependent

  9. Analysis of Langley optical depth data, with aerosol and gas retrievals,

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

    for the RSS 103 instrument in Barrow, Alaska Analysis of Langley optical depth data, with aerosol and gas retrievals, for the RSS 103 instrument in Barrow, Alaska Gianelli, Scott Columbia University - NASA/GISS Lacis, Andrew NASA/Goddard Institute for Space Studies Carlson, Barbara NASA/Goddard Institute for Space Studies Category: Aerosols Bimodal aerosol retrievals, and high-resolution retrevals of nitrogen dioxide, are performed on the Langley optical depth data from the RSS 103 device

  10. Flow distribution channels to control flow in process channels (Patent) |

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Flow distribution channels to control flow in process channels Citation Details In-Document Search Title: Flow distribution channels to control flow in process channels The invention describes features that can be used to control flow to an array of microchannels. The invention also describes methods in which a process stream is distributed to plural microchannels. Authors: Tonkovich, Anna Lee ; Arora, Ravi ; Kilanowski, David Publication Date: 2014-10-28 OSTI Identifier:

  11. Microwave fluid flow meter

    DOE Patents [OSTI]

    Billeter, Thomas R.; Philipp, Lee D.; Schemmel, Richard R.

    1976-01-01

    A microwave fluid flow meter is described utilizing two spaced microwave sensors positioned along a fluid flow path. Each sensor includes a microwave cavity having a frequency of resonance dependent upon the static pressure of the fluid at the sensor locations. The resonant response of each cavity with respect to a variation in pressure of the monitored fluid is represented by a corresponding electrical output which can be calibrated into a direct pressure reading. The pressure drop between sensor locations is then correlated as a measure of fluid velocity. In the preferred embodiment the individual sensor cavities are strategically positioned outside the path of fluid flow and are designed to resonate in two distinct frequency modes yielding a measure of temperature as well as pressure. The temperature response can then be used in correcting for pressure responses of the microwave cavity encountered due to temperature fluctuations.

  12. Electrocapturing flow cell

    DOE Patents [OSTI]

    Morozov, Victor

    2011-04-05

    A flow cell for electrophoretically-assisted capturing analytes from a flow. The flow cell includes a specimen chamber, a first membrane, a second membrane, a first electrode chamber, and a second electrode chamber. The specimen chamber may have a sample inlet and a sample outlet. A first portion of the first membrane may be coupled to a first portion of the specimen chamber. A first portion of the second membrane may be coupled to a second portion of the specimen chamber. The first electrode chamber may be configured to accept a charge. A portion of the first electrode chamber may be coupled to a second portion of the first membrane. A second electrode chamber may be configured to accept an opposite charge. A portion of the second electrode chamber may be coupled to a second portion of the second membrane.

  13. Measurement of sound speed vs. depth in South Pole ice: pressure waves and shear waves

    SciTech Connect (OSTI)

    IceCube Collaboration; Klein, Spencer

    2009-06-04

    We have measured the speed of both pressure waves and shear waves as a function of depth between 80 and 500 m depth in South Pole ice with better than 1% precision. The measurements were made using the South Pole Acoustic Test Setup (SPATS), an array of transmitters and sensors deployed in the ice at the South Pole in order to measure the acoustic properties relevant to acoustic detection of astrophysical neutrinos. The transmitters and sensors use piezoceramics operating at {approx}5-25 kHz. Between 200 m and 500 m depth, the measured profile is consistent with zero variation of the sound speed with depth, resulting in zero refraction, for both pressure and shear waves. We also performed a complementary study featuring an explosive signal propagating vertically from 50 to 2250 m depth, from which we determined a value for the pressure wave speed consistent with that determined for shallower depths, higher frequencies, and horizontal propagation with the SPATS sensors. The sound speed profile presented here can be used to achieve good acoustic source position and emission time reconstruction in general, and neutrino direction and energy reconstruction in particular. The reconstructed quantities could also help separate neutrino signals from background.

  14. Non-destructive in-situ method and apparatus for determining radionuclide depth in media

    DOE Patents [OSTI]

    Xu, X. George; Naessens, Edward P.

    2003-01-01

    A non-destructive method and apparatus which is based on in-situ gamma spectroscopy is used to determine the depth of radiological contamination in media such as concrete. An algorithm, Gamma Penetration Depth Unfolding Algorithm (GPDUA), uses point kernel techniques to predict the depth of contamination based on the results of uncollided peak information from the in-situ gamma spectroscopy. The invention is better, faster, safer, and/cheaper than the current practice in decontamination and decommissioning of facilities that are slow, rough and unsafe. The invention uses a priori knowledge of the contaminant source distribution. The applicable radiological contaminants of interest are any isotopes that emit two or more gamma rays per disintegration or isotopes that emit a single gamma ray but have gamma-emitting progeny in secular equilibrium with its parent (e.g., .sup.60 Co, .sup.235 U, and .sup.137 Cs to name a few). The predicted depths from the GPDUA algorithm using Monte Carlo N-Particle Transport Code (MCNP) simulations and laboratory experiments using .sup.60 Co have consistently produced predicted depths within 20% of the actual or known depth.

  15. Flow line sampler

    DOE Patents [OSTI]

    Nicholls, Colin I.

    1992-07-14

    An on-line product sampling apparatus and method for measuring product samples from a product stream (12) in a flow line (14) having a sampling aperture (11), includes a sampling tube (18) for containing product samples removed from flow line (14). A piston (22) removes product samples from the product stream (12) through the sampling aperture (11) and returns samples to product stream (12). A sensor (20) communicates with sample tube (18), and senses physical properties of samples while the samples are within sample tube (18). In one embodiment, sensor (20) comprises a hydrogen transient nuclear magnetic resonance sensor for measuring physical properties of hydrogen molecules.

  16. Safety and Security Interface Technology Initiative

    SciTech Connect (OSTI)

    Dr. Michael A. Lehto; Kevin J. Carroll; Dr. Robert Lowrie

    2007-05-01

    Safety and Security Interface Technology Initiative Mr. Kevin J. Carroll Dr. Robert Lowrie, Dr. Micheal Lehto BWXT Y12 NSC Oak Ridge, TN 37831 865-576-2289/865-241-2772 carrollkj@y12.doe.gov Work Objective. Earlier this year, the Energy Facility Contractors Group (EFCOG) was asked to assist in developing options related to acceleration deployment of new security-related technologies to assist meeting design base threat (DBT) needs while also addressing the requirements of 10 CFR 830. NNSA NA-70, one of the working group participants, designated this effort the Safety and Security Interface Technology Initiative (SSIT). Relationship to Workshop Theme. Supporting Excellence in Operations Through Safety Analysis, (workshop theme) includes security and safety personnel working together to ensure effective and efficient operations. One of the specific workshop elements listed in the call for papers is Safeguards/Security Integration with Safety. This paper speaks directly to this theme. Description of Work. The EFCOG Safety Analysis Working Group (SAWG) and the EFCOG Security Working Group formed a core team to develop an integrated process involving both safety basis and security needs allowing achievement of the DBT objectives while ensuring safety is appropriately considered. This effort garnered significant interest, starting with a two day breakout session of 30 experts at the 2006 Safety Basis Workshop. A core team was formed, and a series of meetings were held to develop that process, including safety and security professionals, both contractor and federal personnel. A pilot exercise held at Idaho National Laboratory (INL) in mid-July 2006 was conducted as a feasibility of concept review. Work Results. The SSIT efforts resulted in a topical report transmitted from EFCOG to DOE/NNSA in August 2006. Elements of the report included: Drivers and Endstate, Control Selections Alternative Analysis Process, Terminology Crosswalk, Safety Basis/Security Documentation Integration, Configuration Control, and development of a shared tool box of information/successes. Specific Benefits. The expectation or end state resulting from the topical report and associated implementation plan includes: (1) A recommended process for handling the documentation of the security and safety disciplines, including an appropriate change control process and participation by all stakeholders. (2) A means to package security systems with sufficient information to help expedite the flow of that system through the process. In addition, a means to share successes among sites, to include information and safety basis to the extent such information is transportable. (3) Identification of key security systems and associated essential security elements being installed and an arrangement for the sites installing these systems to host an appropriate team to review a specific system and determine what information is exportable. (4) Identification of the security systems essential elements and appropriate controls required for testing of these essential elements in the facility. (5) The ability to help refine and improve an agreed to control set at the manufacture stage.

  17. Flow cytometry apparatus

    DOE Patents [OSTI]

    Pinkel, Daniel (Walnut Creek, CA)

    1991-01-01

    An obstruction across the flow chamber creates a one dimensional convergence of a sheath fluid. A passageway in the construction directs flat cells near to the area of one dimensional convergence in the sheath fluid to provide proper orientation of flat cells at fast rates.

  18. US energy flow, 1991

    SciTech Connect (OSTI)

    Borg, I.Y.; Briggs, C.K.

    1992-06-01

    Trends in energy consumption and assessment of energy sources are discussed. Specific topics discussed include: energy flow charts; comparison of energy use with 1990 and earlier years; supply and demand of fossil fuels (oils, natural gas, coal); electrical supply and demand; and nuclear power.

  19. Flow cytometry apparatus

    DOE Patents [OSTI]

    Pinkel, D.

    1987-11-30

    An obstruction across the flow chamber creates a one-dimensional convergence of a sheath fluid. A passageway in the obstruction directs flat cells near to the area of one-dimensional convergence in the sheath fluid to provide proper orientation of flat cells at fast rates. 6 figs.

  20. On the initial state and consistency relations

    SciTech Connect (OSTI)

    Berezhiani, Lasha; Khoury, Justin E-mail: jkhoury@sas.upenn.edu

    2014-09-01

    We study the effect of the initial state on the consistency conditions for adiabatic perturbations. In order to be consistent with the constraints of General Relativity, the initial state must be diffeomorphism invariant. As a result, we show that initial wavefunctional/density matrix has to satisfy a Slavnov-Taylor identity similar to that of the action. We then investigate the precise ways in which modified initial states can lead to violations of the consistency relations. We find two independent sources of violations: i) the state can include initial non-Gaussianities; ii) even if the initial state is Gaussian, such as a Bogoliubov state, the modified 2-point function can modify the q-vector ?0 analyticity properties of the vertex functional and result in violations of the consistency relations.

  1. Presidential Initiatives | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Presidential Initiatives Bratislava Nuclear Security Initiative: President Putin and President Bush agreed to pursue an initiative on nuclear security cooperation at a February 2005 summit in Bratislava, Slovak Republic. This agreement includes for the first time a comprehensive joint action plan for the cooperation on security upgrades of Russian nuclear facilities at Rosatom and Ministry of Defense sites, and cooperation in the areas of nuclear regulatory development, sustainability, secure

  2. Applied Field Research Initiative Deep Vadose Zone

    Office of Environmental Management (EM)

    Applied Field Research Initiative Deep Vadose Zone Located on the Hanford Site in Richland, Washington, the Deep Vadose Zone Applied Field Research Initiative (DVZ AFRI) was established to protect water resources by addressing the challenge of preventing contamination in the deep vadose zone from reaching groundwater. Led by the Pacific Northwest National Laboratory, the Initiative is a collaborative effort that leverages Department of Energy (DOE) investments in basic science and applied

  3. Advanced Manufacturing Initiative Improves Turbine Blade Productivity |

    Energy Savers [EERE]

    Department of Energy Advanced Manufacturing Initiative Improves Turbine Blade Productivity Advanced Manufacturing Initiative Improves Turbine Blade Productivity May 20, 2011 - 2:56pm Addthis This is an excerpt from the Second Quarter 2011 edition of the Wind Program R&D Newsletter. The Advanced Manufacturing Initiative (AMI) at DOE's Sandia National Laboratories is working with industry to improve manufacturing processes and create U.S. jobs by improving labor productivity in wind

  4. SunShot Initiative | Department of Energy

    Energy Savers [EERE]

    SunShot Initiative Newsletter SunShot Initiative Newsletter The SunShot Initiative offers a monthly email newsletter to provide up-to-date information about its latest activities and upcoming funding opportunities. The SunShot newsletter provide regular email updates on SunShot activities, events, funding opportunities, and publications. Partner Agency: U.S. Department of Energy Resource Type: Newsletter Stakeholder Group(s): State and Local Governments; Financial; Residential; Commercial;

  5. commercial buildings initiative | netl.doe.gov

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

    Commercial Buildings Initiative The DOE Building Technologies Office works with the commercial building industry to accelerate the use of energy efficiency technologies in both...

  6. The Vote Solar Initiative | Open Energy Information

    Open Energy Info (EERE)

    The Vote Solar Initiative is a non-profit organization with the mission of stopping global warming and increasing energy independence by bringing solar energy into the...

  7. European Green Cars Initiative | Open Energy Information

    Open Energy Info (EERE)

    Commission Focus Area: Governance - Planning - Decision-Making Structure Topics: Best Practices Website: www.green-cars-initiative.eupublic The European Green Cars...

  8. Secretary Chu Announces Progress on International Initiatives...

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

    International Initiatives to Promote Clean Energy Secretary Chu Announces Progress on ... 6 to 8 percent of global residential electricity consumption, the awards will help ...

  9. Interconnection-Wide Transmission Planning Initiative: Topic...

    Energy Savers [EERE]

    the Texas Interconnection Interconnection-Wide Transmission Planning Initiative: Topic B, State Agency Input Regarding Electric Resource and Transmission Planning in the Texas ...

  10. Rotary mode system initial instrument calibration

    SciTech Connect (OSTI)

    Johns, B.R.

    1994-10-01

    The attached report contains the vendor calibration procedures used for the initial instrument calibration of the rotary core sampling equipment. The procedures are from approved vendor information files.

  11. Presidential Initiatives | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    ... Proliferation Security Initiative: For more information, click here off site link . ... called for closing the Nuclear Non-Proliferation Treaty "loophole" by restricting the ...

  12. Startup America Initiative | Open Energy Information

    Open Energy Info (EERE)

    America Place: Washington, D.C. Year Founded: 2011 Website: www.whitehouse.govissuesstar References: Startup America1 The Startup America Initiative and Startup America...

  13. Climate Technology Initiative Training Courses | Open Energy...

    Open Energy Info (EERE)

    Training Courses Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Climate Technology Initiative Training Courses AgencyCompany Organization: Climate Technology...

  14. Interconnection-Wide Transmission Planning Initiative: Topic...

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

    Western Interconnection on Electric Resource Planning and Priorities Interconnection-Wide Transmission Planning Initiative: Topic B, Cooperation Among States in the Western ...

  15. Interconnection-Wide Transmission Planning Initiative: Topic...

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

    Eastern Interconnection on Electric Resource Planning and Priorities Interconnection-Wide Transmission Planning Initiative: Topic B, Cooperation Among States in the Eastern ...

  16. Interconnection-Wide Transmission Planning Initiative: Topic...

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

    A, Interconnection-Level Analysis and Planning Interconnection-Wide Transmission Planning Initiative: Topic A, Interconnection-Level Analysis and Planning A description of the ...

  17. Multidisciplinary University Research Initiative: High Operating...

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

    In August 2012, DOE announced two awards under the Multidisciplinary University Research Initiative (MURI) to develop high-operating temperature heat-transfer fluids for ...

  18. C-3E? WOMENS INITIATIVE:

    Energy Savers [EERE]

    the world by women leading in the fields of science, technology, engineering, and mathematics. The objective of the initiative is to encourage women to enter the clean energy...

  19. DOE Initiates Enforcement Proceedings against Westinghouse and...

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

    of Proposed Civil Penalty Issued) DOE Initiates Enforcement Proceedings against Westinghouse and Mitsubishi for Failure to Certify (Notice of Proposed Civil Penalty Issued) ...

  20. Southface Energy Institute: Advanced Commercial Buildings Initiative...

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

    Southface Energy Institute: Advanced Commercial Buildings Initiative Lead Performer: Southface Energy Institute - Atlanta, GA Partners: - City of Atlanta - Atlanta, GA - Georgia ...

  1. Strategic Initiatives Work Group Status Overview - September...

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

    Group Status Overview - September 2012 Documents Available for Download PDF icon September 2012 Status Overviews More Documents & Publications Strategic Initiatives Work Group ...

  2. The Initiation of Bacterial DNA Replication

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

    The Initiation of Bacterial DNA Replication The Initiation of Bacterial DNA Replication Print Wednesday, 31 January 2007 00:00 For the first time, scientists have determined the structure of the initiator of bacterial DNA replication. It is already known that such replication is controlled by a protein known as DnaA, a member of the AAA+ superfamily of ATPases. What has now been discovered is that the core of the initiator is not the closed-ring structure expected for this system. Instead, DnaA

  3. International Energy Initiative | Open Energy Information

    Open Energy Info (EERE)

    to as INTAAACT, which means integrating information, training, analysis, advocacy, and action into projects. The Asian Regional Energy Initiative under a regional Director, was...

  4. Ultrafast laser diagnostics to investigate initiation fundamentals...

    Office of Scientific and Technical Information (OSTI)

    Ultrafast laser diagnostics to investigate initiation fundamentals in energetic materials. Citation Details In-Document Search Title: Ultrafast laser diagnostics to investigate ...

  5. Clean Energy Manufacturing Initiative: Increasing American Competitive...

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

    These include: The SunShot Initiative's efforts to improve manufacturing of solar energy systems; The Wind Program's work on taller wind energy towers; and The Vehicle Technologies ...

  6. International Council for Local Environmental Initiatives | Open...

    Open Energy Info (EERE)

    Initiatives, headquartered in Toronto, Ontario, is an international association of local governments, along with national and regional governments, focused on sustainable...

  7. Microsoft Word - Energy Department Initiates Recertification...

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

    waste. EPA first certified WIPP compliant in 1998. The initial Compliance Certification Application demonstrated how the geological, hydrological, physical, chemical and...

  8. Microsoft Word - DOE Initiates EPA Recertificaton Process

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

    The EPA first certified WIPP compliance in May 1998. The initial Compliance Certification Application demonstrated how the geological, hydrological, physical, chemical and...

  9. Ultrafast laser diagnostics to investigate initiation fundamentals...

    Office of Scientific and Technical Information (OSTI)

    pressure and chemical change during the shock initiation of energetic materials. ... We have also demonstrated laser shock and particle velocity measurements in thin film ...

  10. Lab seeks venture acceleration initiative partners

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

    partners The Venture Acceleration Initiative is a pilot program to strategically spin off from the Lab start-up companies with emphasis on establishing new businesses in...

  11. Hydrogen Fuel Initiative | Open Energy Information

    Open Energy Info (EERE)

    Hydrogen Fuel Initiative Jump to: navigation, search Contents 1 Introduction 2 Cost 3 Hydrogen Production Strategy 4 Objectives 5 Manufacturing Challenges 6 References Introduction...

  12. ARM: 10-minute Raman Lidar: aerosol depolarization profiles and single layer cloud optical depths from first Turner algorithm

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

    Chitra Sivaraman; Connor Flynn

    1998-03-01

    10-minute Raman Lidar: aerosol depolarization profiles and single layer cloud optical depths from first Turner algorithm

  13. ARM: 10-minute Raman Lidar: aerosol depolarization profiles and single layer cloud optical depths from first Turner algorithm

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

    Chitra Sivaraman; Connor Flynn

    10-minute Raman Lidar: aerosol depolarization profiles and single layer cloud optical depths from first Turner algorithm

  14. Extraction of depth-dependent perturbation factors for silicon diodes using a plastic scintillation detector

    SciTech Connect (OSTI)

    Lacroix, Frederic; Guillot, Mathieu; McEwen, Malcolm; Gingras, Luc; Beaulieu, Luc

    2011-10-15

    Purpose: This work presents the experimental extraction of the perturbation factor in megavoltage electron beams for three models of silicon diodes (IBA Dosimetry, EFD and SFD, and the PTW 60012 unshielded) using a plastic scintillation detector (PSD). Methods: The authors used a single scanning PSD mounted on a high-precision scanning tank to measure depth-dose curves in 6-, 12-, and 18-MeV clinical electron beams. They also measured depth-dose curves using the IBA Dosimetry, EFD and SFD, and the PTW 60012 unshielded diodes. The authors used the depth-dose curves measured with the PSD as a perturbation-free reference to extract the perturbation factors of the diodes. Results: The authors found that the perturbation factors for the diodes increased substantially with depth, especially for low-energy electron beams. The experimental results show the same trend as published Monte Carlo simulation results for the EFD diode; however, the perturbations measured experimentally were greater. They found that using an effective point of measurement (EPOM) placed slightly away from the source reduced the variation of perturbation factors with depth and that the optimal EPOM appears to be energy dependent. Conclusions: The manufacturer recommended EPOM appears to be incorrect at low electron energy (6 MeV). In addition, the perturbation factors for diodes may be greater than predicted by Monte Carlo simulations.

  15. Depth profiling analysis of solar wind helium collected in diamond-like carbon film from Genesis

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

    Bajo, Ken-ichi; Olinger, Chad T.; Jurewicz, Amy J.G.; Burnett, Donald S.; Sakaguchi, Isao; Suzuki, Taku; Itose, Satoru; Ishihara, Morio; Uchino, Kiichiro; Wieler, Rainer; et al

    2015-10-01

    The distribution of solar-wind ions in Genesis mission collectors, as determined by depth profiling analysis, constrains the physics of ion solid interactions involving the solar wind. Thus, they provide an experimental basis for revealing ancient solar activities represented by solar-wind implants in natural samples. We measured the first depth profile of ⁴He in a collector; the shallow implantation (peaking at <20 nm) required us to use sputtered neutral mass spectrometry with post-photoionization by a strong field. The solar wind He fluence calculated using depth profiling is ~8.5 x 10¹⁴ cm⁻². The shape of the solar wind ⁴He depth profile ismore » consistent with TRIM simulations using the observed ⁴He velocity distribution during the Genesis mission. It is therefore likely that all solar-wind elements heavier than H are completely intact in this Genesis collector and, consequently, the solar particle energy distributions for each element can be calculated from their depth profiles. Ancient solar activities and space weathering of solar system objects could be quantitatively reproduced by solar particle implantation profiles.« less

  16. Daily snow depth measurements from 195 stations in the United States

    SciTech Connect (OSTI)

    Allison, L.J.; Easterling, D.R.; Jamason, P.; Bowman, D.P.; Hughes, P.Y.; Mason, E.H.

    1997-02-01

    This document describes a database containing daily measurements of snow depth at 195 National Weather Service (NWS) first-order climatological stations in the United States. The data have been assembled and made available by the National Climatic Data Center (NCDC) in Asheville, North Carolina. The 195 stations encompass 388 unique sampling locations in 48 of the 50 states; no observations from Delaware or Hawaii are included in the database. Station selection criteria emphasized the quality and length of station records while seeking to provide a network with good geographic coverage. Snow depth at the 388 locations was measured once per day on ground open to the sky. The daily snow depth is the total depth of the snow on the ground at measurement time. The time period covered by the database is 1893--1992; however, not all station records encompass the complete period. While a station record ideally should contain daily data for at least the seven winter months (January through April and October through December), not all stations have complete records. Each logical record in the snow depth database contains one station`s daily data values for a period of one month, including data source, measurement, and quality flags.

  17. In-Depth Analysis of Simulation Engine Codes for Comparison with DOE s Roof Savings Calculator and Measured Data

    SciTech Connect (OSTI)

    New, Joshua Ryan; Levinson, Ronnen; Huang, Yu; Sanyal, Jibonananda; Miller, William A.; Mellot, Joe; Childs, Kenneth W.; Kriner, Scott

    2014-06-01

    The Roof Savings Calculator (RSC) was developed through collaborations among Oak Ridge National Laboratory (ORNL), White Box Technologies, Lawrence Berkeley National Laboratory (LBNL), and the Environmental Protection Agency in the context of a California Energy Commission Public Interest Energy Research project to make cool-color roofing materials a market reality. The RSC website and a simulation engine validated against demonstration homes were developed to replace the liberal DOE Cool Roof Calculator and the conservative EPA Energy Star Roofing Calculator, which reported different roof savings estimates. A preliminary analysis arrived at a tentative explanation for why RSC results differed from previous LBNL studies and provided guidance for future analysis in the comparison of four simulation programs (doe2attic, DOE-2.1E, EnergyPlus, and MicroPas), including heat exchange between the attic surfaces (principally the roof and ceiling) and the resulting heat flows through the ceiling to the building below. The results were consolidated in an ORNL technical report, ORNL/TM-2013/501. This report is an in-depth inter-comparison of four programs with detailed measured data from an experimental facility operated by ORNL in South Carolina in which different segments of the attic had different roof and attic systems.

  18. Clean Energy and Bond Finance Initiative

    Broader source: Energy.gov [DOE]

    Provides information on Clean Energy and Bond Finance Initiative (CE+BFI). CE+BFI brings together public infrastructure finance agencies, clean energy public fund managers and institutional investors across the country to explore how to raise capital at scale for clean energy development through bond financing. Author: Clean Energy and Bond Finance Initiative

  19. Innovative Manufacturing Initiative Recognition Day - Final Participant

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

    Listing | Department of Energy Day - Final Participant Listing Innovative Manufacturing Initiative Recognition Day - Final Participant Listing PDF icon imi_recogitionday_participants.pdf More Documents & Publications Innovative Manufacturing Initiative Recognition Day 2015 AMO Peer Review Agenda CX-100154 Categorical Exclusion Determination

  20. Innovative Manufacturing Initiative Recognition Day, Advanced Manufacturing

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

    Office (AMO) | Department of Energy Day, Advanced Manufacturing Office (AMO) Innovative Manufacturing Initiative Recognition Day, Advanced Manufacturing Office (AMO) PDF icon imi_recogitionday_leo_june2012.pdf More Documents & Publications Innovative Manufacturing Initiative Recognition Day Advanced Manufacturing Office Overview Unlocking the Potential of Additive Manufacturing in the Fuel Cells Industry

  1. Oahu Groundwater Flow Model

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

    Nicole Lautze

    2015-01-01

    Groundwater flow model for the island of Oahu. Data is from the following sources: Rotzoll, K., A.I. El-Kadi. 2007. Numerical Ground-Water Flow Simulation for Red Hill Fuel Storage Facilities, NAVFAC Pacific, Oahu, Hawaii - Prepared TEC, Inc. Water Resources Research Center, University of Hawaii, Honolulu.; Whittier, R.B., K. Rotzoll, S. Dhal, A.I. El-Kadi, C. Ray, G. Chen, and D. Chang. 2004. Hawaii Source Water Assessment Program Report – Volume VII – Island of Oahu Source Water Assessment Program Report. Prepared for the Hawaii Department of Health, Safe Drinking Water Branch. University of Hawaii, Water Resources Research Center. Updated 2008.; and Whittier, R. and A.I. El-Kadi. 2009. Human and Environmental Risk Ranking of Onsite Sewage Disposal Systems – Final. Prepared by the University of Hawaii, Dept. of Geology and Geophysics for the State of Hawaii Dept. of Health, Safe Drinking Water Branch. December 2009.

  2. Structural power flow measurement

    SciTech Connect (OSTI)

    Falter, K.J.; Keltie, R.F.

    1988-12-01

    Previous investigations of structural power flow through beam-like structures resulted in some unexplained anomalies in the calculated data. In order to develop structural power flow measurement as a viable technique for machine tool design, the causes of these anomalies needed to be found. Once found, techniques for eliminating the errors could be developed. Error sources were found in the experimental apparatus itself as well as in the instrumentation. Although flexural waves are the carriers of power in the experimental apparatus, at some frequencies longitudinal waves were excited which were picked up by the accelerometers and altered power measurements. Errors were found in the phase and gain response of the sensors and amplifiers used for measurement. A transfer function correction technique was employed to compensate for these instrumentation errors.

  3. TEP process flow diagram

    SciTech Connect (OSTI)

    Wilms, R Scott; Carlson, Bryan; Coons, James; Kubic, William

    2008-01-01

    This presentation describes the development of the proposed Process Flow Diagram (PFD) for the Tokamak Exhaust Processing System (TEP) of ITER. A brief review of design efforts leading up to the PFD is followed by a description of the hydrogen-like, air-like, and waterlike processes. Two new design values are described; the mostcommon and most-demanding design values. The proposed PFD is shown to meet specifications under the most-common and mostdemanding design values.

  4. Convective heat flow probe

    DOE Patents [OSTI]

    Dunn, J.C.; Hardee, H.C.; Striker, R.P.

    1984-01-09

    A convective heat flow probe device is provided which measures heat flow and fluid flow magnitude in the formation surrounding a borehole. The probe comprises an elongate housing adapted to be lowered down into the borehole; a plurality of heaters extending along the probe for heating the formation surrounding the borehole; a plurality of temperature sensors arranged around the periphery of the probe for measuring the temperature of the surrounding formation after heating thereof by the heater elements. The temperature sensors and heater elements are mounted in a plurality of separate heater pads which are supported by the housing and which are adapted to be radially expanded into firm engagement with the walls of the borehole. The heat supplied by the heater elements and the temperatures measured by the temperature sensors are monitored and used in providing the desired measurements. The outer peripheral surfaces of the heater pads are configured as segments of a cylinder and form a full cylinder when taken together. A plurality of temperature sensors are located on each pad so as to extend along the length and across the width thereof, with a heating element being located in each pad beneath the temperature sensors. An expansion mechanism driven by a clamping motor provides expansion and retraction of the heater pads and expandable packet-type seals are provided along the probe above and below the heater pads.

  5. Convective heat flow probe

    DOE Patents [OSTI]

    Dunn, James C.; Hardee, Harry C.; Striker, Richard P.

    1985-01-01

    A convective heat flow probe device is provided which measures heat flow and fluid flow magnitude in the formation surrounding a borehole. The probe comprises an elongate housing adapted to be lowered down into the borehole; a plurality of heaters extending along the probe for heating the formation surrounding the borehole; a plurality of temperature sensors arranged around the periphery of the probe for measuring the temperature of the surrounding formation after heating thereof by the heater elements. The temperature sensors and heater elements are mounted in a plurality of separate heater pads which are supported by the housing and which are adapted to be radially expanded into firm engagement with the walls of the borehole. The heat supplied by the heater elements and the temperatures measured by the temperature sensors are monitored and used in providing the desired measurements. The outer peripheral surfaces of the heater pads are configured as segments of a cylinder and form a full cylinder when taken together. A plurality of temperature sensors are located on each pad so as to extend along the length and across the width thereof, with a heating element being located in each pad beneath the temperature sensors. An expansion mechanism driven by a clamping motor provides expansion and retraction of the heater pads and expandable packer-type seals are provided along the probe above and below the heater pads.

  6. LINKING Lyα AND LOW-IONIZATION TRANSITIONS AT LOW OPTICAL DEPTH

    SciTech Connect (OSTI)

    Jaskot, A. E.; Oey, M. S.

    2014-08-20

    We suggest that low optical depth in the Lyman continuum (LyC) may relate the Lyα emission, C II and Si II absorption, and C II* and Si II* emission seen in high-redshift galaxies. We base this analysis on Hubble Space Telescope Cosmic Origins Spectrograph spectra of four Green Pea (GP) galaxies, which may be analogs of z > 2 Lyα emitters (LAEs). In the two GPs with the strongest Lyα emission, the Lyα line profiles show reduced signs of resonant scattering. Instead, the Lyα profiles resemble the Hα line profiles of evolved star ejecta, suggesting that the Lyα emission originates from a low column density and similar outflow geometry. The weak C II absorption and presence of non-resonant C II* emission in these GPs support this interpretation and imply a low LyC optical depth along the line of sight. In two additional GPs, weak Lyα emission and strong C II absorption suggest a higher optical depth. These two GPs differ in their Lyα profile shapes and C II* emission strengths, however, indicating different inclinations of the outflows to our line of sight. With these four GPs as examples, we explain the observed trends linking Lyα, C II, and C II* in stacked LAE spectra, in the context of optical depth and geometric effects. Specifically, in some galaxies with strong Lyα emission, a low LyC optical depth may allow Lyα to escape with reduced scattering. Furthermore, C II absorption, C II* emission, and Lyα profile shape can reveal the optical depth, constrain the orientation of neutral outflows in LAEs, and identify candidate LyC emitters.

  7. ToF-SIMS Depth Profiling Of Insulating Samples, Interlaced Mode Or Non-interlaced Mode?

    SciTech Connect (OSTI)

    Wang, Zhaoying; Jin, Ke; Zhang, Yanwen; Wang, Fuyi; Zhu, Zihua

    2014-11-01

    Dual beam depth profiling strategy has been widely adopted in ToF-SIMS depth profiling, in which two basic operation modes, interlaced mode and non-interlaced mode, are commonly used. Generally, interlaced mode is recommended for conductive or semi-conductive samples, whereas non-interlaced mode is recommended for insulating samples, where charge compensation can be an issue. Recent publications, however, show that the interlaced mode can be used effectively for glass depth profiling, despite the fact that glass is an insulator. In this study, we provide a simple guide for choosing between interlaced mode and non-interlaced mode for insulator depth profiling. Two representative cases are presented: (1) depth profiling of a leached glass sample, and (2) depth profiling of a single crystal MgO sample. In brief, the interlaced mode should be attempted first, because (1) it may provide reasonable-quality data, and (2) it is time-saving for most cases, and (3) it introduces low H/C/O background. If data quality is the top priority and measurement time is flexible, non-interlaced mode is recommended because interlaced mode may suffer from low signal intensity and poor mass resolution. A big challenge is tracking trace H/C/O in a highly insulating sample (e.g., MgO), because non-interlaced mode may introduce strong H/C/O background but interlaced mode may suffer from low signal intensity. Meanwhile, a C or Au coating is found to be very effective to improve the signal intensity. Surprisingly, the best analyzing location is not on the C or Au coating, but at the edge (outside) of the coating.

  8. End-of-life flows of multiple cycle consumer products

    SciTech Connect (OSTI)

    Tsiliyannis, C.A.

    2011-11-15

    Explicit expressions for the end-of-life flows (EOL) of single and multiple cycle products (MCPs) are presented, including deterministic and stochastic EOL exit. The expressions are given in terms of the physical parameters (maximum lifetime, T, annual cycling frequency, f, number of cycles, N, and early discard or usage loss). EOL flows are also obtained for hi-tech products, which are rapidly renewed and thus may not attain steady state (e.g. electronic products, passenger cars). A ten-step recursive procedure for obtaining the dynamic EOL flow evolution is proposed. Applications of the EOL expressions and the ten-step procedure are given for electric household appliances, industrial machinery, tyres, vehicles and buildings, both for deterministic and stochastic EOL exit, (normal, Weibull and uniform exit distributions). The effect of the physical parameters and the stochastic characteristics on the EOL flow is investigated in the examples: it is shown that the EOL flow profile is determined primarily by the early discard dynamics; it also depends strongly on longevity and cycling frequency: higher lifetime or early discard/loss imply lower dynamic and steady state EOL flows. The stochastic exit shapes the overall EOL dynamic profile: Under symmetric EOL exit distribution, as the variance of the distribution increases (uniform to normal to deterministic) the initial EOL flow rise becomes steeper but the steady state or maximum EOL flow level is lower. The steepest EOL flow profile, featuring the highest steady state or maximum level, as well, corresponds to skew, earlier shifted EOL exit (e.g. Weibull). Since the EOL flow of returned products consists the sink of the reuse/remanufacturing cycle (sink to recycle) the results may be used in closed loop product lifecycle management operations for scheduling and sizing reverse manufacturing and for planning recycle logistics. Decoupling and quantification of both the full age EOL and of the early discard flows is useful, the latter being the target of enacted legislation aiming at increasing reuse.

  9. Depth-dependent ordering, two-length-scale phenomena, and crossover

    Office of Scientific and Technical Information (OSTI)

    behavior in a crystal featuring a skin layer with defects (Journal Article) | SciTech Connect Depth-dependent ordering, two-length-scale phenomena, and crossover behavior in a crystal featuring a skin layer with defects Citation Details In-Document Search Title: Depth-dependent ordering, two-length-scale phenomena, and crossover behavior in a crystal featuring a skin layer with defects Structural defects in a crystal are responsible for the ''two-length-scale'' behavior in which a sharp

  10. Soil temperature, soil moisture and thaw depth, Barrow, Alaska, Ver. 1

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

    Sloan, V.L.; J.A. Liebig; M.S. Hahn; J.B. Curtis; J.D. Brooks; A. Rogers; C.M. Iversen; R.J. Norby

    2014-01-10

    This dataset consists of field measurements of soil properties made during 2012 and 2013 in areas A-D of Intensive Site 1 at the Next-Generation Ecosystem Experiments (NGEE) Arctic site near Barrow, Alaska. Included are i) weekly measurements of thaw depth, soil moisture, presence and depth of standing water, and soil temperature made during the 2012 and 2013 growing seasons (June - September) and ii) half-hourly measurements of soil temperature logged continuously during the period June 2012 to September 2013.

  11. In-Depth: Cleantech at the National Labs | Department of Energy

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

    In-Depth: Cleantech at the National Labs In-Depth: Cleantech at the National Labs January 7, 2014 - 5:30pm Addthis These solar power collection dishes at Sandia National Labs' National Solar Thermal Test Facility are capable of some of the highest solar to electricity conversion. In January 2008, this technology set a new solar-to-grid system conversion efficiency record of 31.25 percent net efficiency rate; the technology is still available to benefit the U.S. by delivering power at all hours

  12. Soil temperature, soil moisture and thaw depth, Barrow, Alaska, Ver. 1

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

    Sloan, V.L.; J.A. Liebig; M.S. Hahn; J.B. Curtis; J.D. Brooks; A. Rogers; C.M. Iversen; R.J. Norby

    This dataset consists of field measurements of soil properties made during 2012 and 2013 in areas A-D of Intensive Site 1 at the Next-Generation Ecosystem Experiments (NGEE) Arctic site near Barrow, Alaska. Included are i) weekly measurements of thaw depth, soil moisture, presence and depth of standing water, and soil temperature made during the 2012 and 2013 growing seasons (June - September) and ii) half-hourly measurements of soil temperature logged continuously during the period June 2012 to September 2013.

  13. Radial flow pulse jet mixer

    DOE Patents [OSTI]

    VanOsdol, John G.

    2013-06-25

    The disclosure provides a pulse jet mixing vessel for mixing a plurality of solid particles. The pulse jet mixing vessel is comprised of a sludge basin, a flow surface surrounding the sludge basin, and a downcoming flow annulus between the flow surface and an inner shroud. The pulse jet mixing vessel is additionally comprised of an upper vessel pressurization volume in fluid communication with the downcoming flow annulus, and an inner shroud surge volume separated from the downcoming flow annulus by the inner shroud. When the solid particles are resting on the sludge basin and a fluid such as water is atop the particles and extending into the downcoming flow annulus and the inner shroud surge volume, mixing occurs by pressurization of the upper vessel pressurization volume, generating an inward radial flow over the flow surface and an upwash jet at the center of the sludge basin.

  14. Flowing effects in gas lasers

    SciTech Connect (OSTI)

    Zhi, G.

    1984-05-01

    Currently accepted theory states that saturation intensity and gain (or optical power density) increase without limit with the increase of the flow speed. These conclusions are not true. It is shown instead that they tend to be limiting values with the increase of flow speed. The variations of the parameters mentioned above with flow speed are presented.

  15. Modeling shrouded stator cavity flows in axial-flow compressors

    SciTech Connect (OSTI)

    Wellborn, S.R.; Tolchinsky, I.; Okiishi, T.H.

    2000-01-01

    Experiments and computational analyses were completed to understand the nature of shrouded stator cavity flows. From this understanding, a one-dimensional model of the flow through shrouded stator cavities was developed. This model estimates the leakage mass flow, temperature rise, and angular momentum increase through the cavity, given geometry parameters and the flow conditions at the interface between the cavity and primary flow path. This cavity model consists of two components, one that estimates the flow characteristics through the labyrinth seals and the other that predicts the transfer of momentum due to windage. A description of the one-dimensional model is given. The incorporation and use of the one-dimensional model in a multistage compressor primary flow analysis tool is described. The combination of this model and the primary flow solver was used to reliably simulate the significant impact on performance of the increase of hub seal leakage in a twelve-stage axial-flow compressor. Observed higher temperatures of the hub region fluid, different stage matching, and lower overall efficiencies and core flow than expected could be correctly linked to increased hub seal clearance with this new technique. The importance of including these leakage flows in compressor simulations is shown.

  16. The Initiation of Bacterial DNA Replication

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

    The Initiation of Bacterial DNA Replication Print For the first time, scientists have determined the structure of the initiator of bacterial DNA replication. It is already known that such replication is controlled by a protein known as DnaA, a member of the AAA+ superfamily of ATPases. What has now been discovered is that the core of the initiator is not the closed-ring structure expected for this system. Instead, DnaA forms an open right-handed helix. In addition, the architecture indicates

  17. The Initiation of Bacterial DNA Replication

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

    The Initiation of Bacterial DNA Replication Print For the first time, scientists have determined the structure of the initiator of bacterial DNA replication. It is already known that such replication is controlled by a protein known as DnaA, a member of the AAA+ superfamily of ATPases. What has now been discovered is that the core of the initiator is not the closed-ring structure expected for this system. Instead, DnaA forms an open right-handed helix. In addition, the architecture indicates

  18. The Initiation of Bacterial DNA Replication

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

    The Initiation of Bacterial DNA Replication Print For the first time, scientists have determined the structure of the initiator of bacterial DNA replication. It is already known that such replication is controlled by a protein known as DnaA, a member of the AAA+ superfamily of ATPases. What has now been discovered is that the core of the initiator is not the closed-ring structure expected for this system. Instead, DnaA forms an open right-handed helix. In addition, the architecture indicates

  19. The Initiation of Bacterial DNA Replication

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

    The Initiation of Bacterial DNA Replication Print For the first time, scientists have determined the structure of the initiator of bacterial DNA replication. It is already known that such replication is controlled by a protein known as DnaA, a member of the AAA+ superfamily of ATPases. What has now been discovered is that the core of the initiator is not the closed-ring structure expected for this system. Instead, DnaA forms an open right-handed helix. In addition, the architecture indicates

  20. Gas flow meter and method for measuring gas flow rate

    DOE Patents [OSTI]

    Robertson, Eric P.

    2006-08-01

    A gas flow rate meter includes an upstream line and two chambers having substantially equal, fixed volumes. An adjustable valve may direct the gas flow through the upstream line to either of the two chambers. A pressure monitoring device may be configured to prompt valve adjustments, directing the gas flow to an alternate chamber each time a pre-set pressure in the upstream line is reached. A method of measuring the gas flow rate measures the time required for the pressure in the upstream line to reach the pre-set pressure. The volume of the chamber and upstream line are known and fixed, thus the time required for the increase in pressure may be used to determine the flow rate of the gas. Another method of measuring the gas flow rate uses two pressure measurements of a fixed volume, taken at different times, to determine the flow rate of the gas.

  1. Tracer advection by steady groundwater flow in a stratified aquifer

    SciTech Connect (OSTI)

    Sposito, Garrison; Weeks, Scott W.

    1997-01-02

    The perfectly stratified aquifer has often been investigated as a simple, tractable model for exploring new theoretical issues in subsurface hydrology. Adopting this approach, we show that steady groundwater flows in the perfectly stratified aquifer are always confined to a set of nonintersecting permanent surfaces, on which both streamlines and vorticity lines lie. This foliation of the flow domain exists as well for steady groundwater flows in any isotropic, spatially heterogeneous aquifer. In the present model example it is a direct consequence of the existence of a stream function, we then demonstrate that tracer plume advection by steady groundwater flow in a perfectly stratified aquifer is never ergodic, regardless of the initial size of the tracer plume. This nonergodicity, which holds also for tracer advection in any isotropic, spatially heterogeneous aquifer, implies that stochastic theories of purely advective tracer plume movement err in assuming ergodic behavior to simplify probabilistic calculations of plume spatial concentration moments.

  2. Wetting and free surface flow modeling for potting and encapsulation.

    SciTech Connect (OSTI)

    Brooks, Carlton, F.; Brooks, Michael J.; Graham, Alan Lyman; Noble, David F. ); Notz, Patrick K.; Hopkins, Matthew Morgan; Castaneda, Jaime N.; Mahoney, Leo James; Baer, Thomas A.; Berchtold, Kathryn; Adolf, Douglas Brian; Wilkes, Edward Dean; Rao, Rekha Ranjana; Givler, Richard C.; Sun, Amy Cha-Tien; Cote, Raymond O.; Mondy, Lisa Ann; Grillet, Anne Mary; Kraynik, Andrew Michael

    2007-06-01

    As part of an effort to reduce costs and improve quality control in encapsulation and potting processes the Technology Initiative Project ''Defect Free Manufacturing and Assembly'' has completed a computational modeling study of flows representative of those seen in these processes. Flow solutions are obtained using a coupled, finite-element-based, numerical method based on the GOMA/ARIA suite of Sandia flow solvers. The evolution of the free surface is solved with an advanced level set algorithm. This approach incorporates novel methods for representing surface tension and wetting forces that affect the evolution of the free surface. In addition, two commercially available codes, ProCAST and MOLDFLOW, are also used on geometries representing encapsulation processes at the Kansas City Plant. Visual observations of the flow in several geometries are recorded in the laboratory and compared to the models. Wetting properties for the materials in these experiments are measured using a unique flowthrough goniometer.

  3. Low-melting elemental metal or fusible alloy encapsulated polymerization initiator for delayed initiation

    DOE Patents [OSTI]

    Hermes, Robert E.

    2015-12-22

    An encapsulated composition for polymerization includes an initiator composition for initiating a polymerization reaction, and a capsule prepared from an elemental metal or fusible alloy having a melting temperature from about 20.degree. C. to about 200.degree. C. A fluid for polymerization includes the encapsulated composition and a monomer. When the capsule melts or breaks open, the initiator is released.

  4. Possibility of using cylindrical ionization chambers for percent depth-dose measurements in clinical electron beams

    SciTech Connect (OSTI)

    Ono, Takeshi; Araki, Fujio; Yoshiyama, Fumiaki

    2011-08-15

    Purpose: This study investigated the possibility of using cylindrical ionization chambers for percent depth-dose (PDD) measurements in high-energy clinical electron beams. Methods: The cavity correction factor, P{sub cav}, for cylindrical chambers with various diameters was calculated as a function of depth from the surface to R{sub 50}, in the energy range of 6-18 MeV electrons with the EGSnrc C ++ -based user-code CAVITY. The results were compared with those for IBA NACP-02 and PTW Roos parallel-plate ionization chambers. The effective point of measurement (EPOM) for the cylindrical chamber and the parallel-plate chamber was positioned according to the IAEA TRS-398 code of practice. The overall correction factor, P{sub Q}, and the percent depth-ionization (PDI) curve for a PTW30013 Farmer-type chamber were also compared with those of NACP-02 and Roos chambers. Results: The P{sub cav} values at depths between the surface and R{sub 50} for cylindrical chambers were all lower than those with parallel-plate chambers. However, the variation in depth for cylindrical chambers equal to or less than 4 mm in diameter was equivalent to or smaller than that for parallel-plate chambers. The P{sub Q} values for the PTW30013 chamber mainly depended on P{sub cav}, and for parallel-plate chambers depended on the wall correction factor, P{sub wall}, rather than P{sub cav}. P{sub Q} at depths from the surface to R{sub 50} for the PTW30013 chamber was consequently a lower value than that with parallel-plate chambers. However, the variation in depth was equivalent to that of parallel-plate chambers at electron energies equal to or greater than 9 MeV. The shift to match calculated PDI curves for the PTW30013 chamber and water (perturbation free) varied from 0.65 to 0 mm between 6 and 18 MeV beams. Similarly, the shifts for NACP-02 and Roos chambers were 0.5-0.6 mm and 0.2-0.3 mm, respectively, and were nearly independent of electron energy. Conclusions: Calculated PDI curves for PTW30013, NACP-02, and Roos chambers agreed well with that of water by using the optimal EPOM. Therefore, the possibility of using cylindrical ionization chambers can be expected for PDD measurements in clinical electron beams.

  5. Plug Flow Reactor Simulator

    Energy Science and Technology Software Center (OSTI)

    1996-07-30

    PLUG is a computer program that solves the coupled steady state continuity, momentum, energy, and species balance equations for a plug flow reactor. Both homogeneous (gas-phase) and heterogenous (surface) reactions can be accommodated. The reactor may be either isothermal or adiabatic or may have a specified axial temperature or heat flux profile; alternatively, an ambient temperature and an overall heat-transfer coefficient can be specified. The crosssectional area and surface area may vary with axial position,more » and viscous drag is included. Ideal gas behavior and surface site conservation are assumed.« less

  6. Incompressible Flows Free Surfaces

    Energy Science and Technology Software Center (OSTI)

    1992-02-01

    NASA-VOF3D is a three-dimensional, transient, free surface, incompressible fluid dynamics program. It is specifically designed to calculate confined flows in a low gravity environment in which surface physics must be accurately treated. It allows multiple free surfaces with surface tension and wall adhesion and includes a partial cell treatment that allows curved boundaries and internal obstacles. Variable mesh spacing is permitted in all three coordinate directions. Boundary conditions available are rigid free-slip wall, rigid no-slipmore » wall, continuative, periodic, and specified pressure outflow boundary.« less

  7. Augmenting Probabilistic Risk Assesment with Malevolent Initiators

    SciTech Connect (OSTI)

    Curtis Smith; David Schwieder

    2011-11-01

    As commonly practiced, the use of probabilistic risk assessment (PRA) in nuclear power plants only considers accident initiators such as natural hazards, equipment failures, and human error. Malevolent initiators are ignored in PRA, but are considered the domain of physical security, which uses vulnerability assessment based on an officially specified threat (design basis threat). This paper explores the implications of augmenting and extending existing PRA models by considering new and modified scenarios resulting from malevolent initiators. Teaming the augmented PRA models with conventional vulnerability assessments can cost-effectively enhance security of a nuclear power plant. This methodology is useful for operating plants, as well as in the design of new plants. For the methodology, we have proposed an approach that builds on and extends the practice of PRA for nuclear power plants for security-related issues. Rather than only considering 'random' failures, we demonstrated a framework that is able to represent and model malevolent initiating events and associated plant impacts.

  8. Recent State Initiatives on "Recreational" Marijuana use

    Broader source: Energy.gov [DOE]

    A number of states have recently passed initiatives that permit the use of marijuana for "recreational" purposes. Title 10 Code of Federal Regulations, part 707 (10 CFR part 707), Workplace...

  9. Climate Technology Initiative (CTI) | Open Energy Information

    Open Energy Info (EERE)

    Map References: CTI - About1 Climate Technology Initiative is an organization based in Japan. Contents 1 Overview 2 Resources 2.1 CTI Tools 2.2 CTI Programs 3 References...

  10. Solar America Initiative (Across America Map)

    SciTech Connect (OSTI)

    Not Available

    2007-06-01

    This factsheet gives an overview of the Solar America Initiative (SAI) using a map to show locations of the Solar America Cities, Solar America Showcases and other market transformation and research and development projects.

  11. Opening Remarks, Grid Integration Initiative Overview

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

    Lynn Grid Integration Initiative Hydrogen Energy Storage for Grid Integration and Transportation Services May 14, 2014 2 Other DOE? 2 The GTT is a DOE inter-office work group ...

  12. Webinar December 2: Materials Genome Initiative

    Broader source: Energy.gov [DOE]

    The Energy Department will present a live webinar entitled "Materials Genome Initiative" on Tuesday, December 2, from 12:00 to 1:00 p.m. Eastern Standard Time.

  13. Photoionization mass spectrometric measurements of initial reaction...

    Office of Scientific and Technical Information (OSTI)

    2,5-dimethylhexane Citation Details In-Document Search Title: Photoionization mass spectrometric measurements of initial reaction pathways in low-temperature oxidation of 2,5-dim...

  14. Hawaii Clean Energy Initiative Scenario Analysis

    Broader source: Energy.gov [DOE]

    Analysis of potential policy options to help the state reach the 70% Hawaii Clean Energy Initiative (HCEI) goal, including possible pathways to attain the goal based on currently available technology.

  15. Initiatives and Projects Contacts | Department of Energy

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

    about any of the initiatives and projects listed on this site, you can use this contact information to reach the office you're interested in: State and Local Energy Efficiency...

  16. Clean Energy Manufacturing Initiative: Technology Research and...

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

    ... Its Advanced Natural Gas Systems Manufacturing Initiative's R&D is helping U.S. manufacturers take advantage of this lower-priced fuel by modernizing the nations natural gas ...

  17. Alaska Village Initiatives Rural Business Conference

    Broader source: Energy.gov [DOE]

    Hosted by the Alaska Village Initiative, the 24th Annual Rural Small Business Conference brings together rural businesses and leaders to provide them with networking opportunities, training, and technical information.

  18. Innovative Manufacturing Initiatives Recognition Day Agenda

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

    Innovative Manufacturing Initiatives Recognition Day June 20, 2012 The Embassy Row Hotel - 2015 Massachusetts Ave, NW 9:00-9:05am Welcome - Dr. Leo Christodoulou, DOE AMO Program...

  19. Photoionization mass spectrometric measurements of initial reaction

    Office of Scientific and Technical Information (OSTI)

    pathways in low-temperature oxidation of 2,5-dimethylhexane (Journal Article) | SciTech Connect Photoionization mass spectrometric measurements of initial reaction pathways in low-temperature oxidation of 2,5-dimethylhexane Citation Details In-Document Search Title: Photoionization mass spectrometric measurements of initial reaction pathways in low-temperature oxidation of 2,5-dimethylhexane The product formation from R + O2 reactions relevant to low-temperature autoignition chemistry was

  20. Materials Genome Initiative | Department of Energy

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

    Emerging Technologies » Materials Genome Initiative Materials Genome Initiative Credit: The White House Credit: The White House Lead Performers: -- National Renewable Energy Laboratory - Golden, CO -- Lawrence Berkeley National Laboratory - Berkeley, CA Project Term: October 2014 to July 2015 Project Background The development of new higher performing materials for buildings and building systems will be a key element of making the high-efficiency, high-performing buildings of the future. The

  1. Smart Buildings Equipment Initiative | Department of Energy

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

    Buildings Equipment Initiative Smart Buildings Equipment Initiative Lead Performers: -- Pacific Northwest National Laboratory - Richland, WA -- National Renewable Energy Laboratory - Golden, CO DOE Funding: $2,100,000 Cost Share: N/A Project Term: Oct. 2014 - Sept. 2015 PROJECT OBJECTIVE The purpose of this project is to develop data taxonomies and standard communication protocols that enable building equipment to engage the larger electric system and to develop analytic methods and testing

  2. Network support for system initiated checkpoints

    DOE Patents [OSTI]

    Chen, Dong; Heidelberger, Philip

    2013-01-29

    A system, method and computer program product for supporting system initiated checkpoints in parallel computing systems. The system and method generates selective control signals to perform checkpointing of system related data in presence of messaging activity associated with a user application running at the node. The checkpointing is initiated by the system such that checkpoint data of a plurality of network nodes may be obtained even in the presence of user applications running on highly parallel computers that include ongoing user messaging activity.

  3. State and Regional Energy Risk Assessment Initiative

    Broader source: Energy.gov [DOE]

    OE is leading a State and Regional Energy Risk Assessment Initiative to help States better understand risks to their energy infrastructure so they can be better prepared to make informed decisions about their investments, resilience and hardening strategies, and asset management. As part of this Initiative, OE has developed a series of State and Regional Energy Risk Profiles that examine the relative magnitude of the risks that each State's energy infrastructure routinely encounters in comparison with the probable impacts.

  4. EERE Initiatives and Projects | Department of Energy

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

    EERE Initiatives and Projects EERE Initiatives and Projects As part of its work to support energy efficiency and renewable energy research, the Office of Energy Efficiency and Renewable Energy has collaborated with private organizations, researchers, and other nations. Here you can read about the results of EERE's collaboration and research activities. This list includes projects completed at the office level, or by the Business Operations or Strategic Programs areas. Read about EERE's

  5. NREL: Transportation Research - Sustainable Mobility Initiative

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

    Mobility Initiative Graphic of four concentric circles starting with the traveler and branching out to encompass the vehicle, transport system, and built environment. NREL's Sustainable Mobility Initiative approaches sustainable transportation as a network of travelers, services, and environments-rather than just vehicles and roads-using connectivity and automation to optimize mobility and significantly reduce related energy consumption. This concept of an intelligent, integrated, and dynamic

  6. Clean Energy Manufacturing Initiative: Increasing American Competitiveness

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

    Through Innovation | Department of Energy Manufacturing Initiative: Increasing American Competitiveness Through Innovation Clean Energy Manufacturing Initiative: Increasing American Competitiveness Through Innovation March 31, 2014 - 8:45pm Addthis Watch the video above to find out how private and public partnerships are critical to addressing the nation's energy challenges and expanding our clean energy economy. Manufacturing is making a resurgence in America. Companies such as Whirlpool -

  7. Tribal Programs, Special Initiatives, and Cooperative Agreements |

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

    Department of Energy Programs, Special Initiatives, and Cooperative Agreements Tribal Programs, Special Initiatives, and Cooperative Agreements EM is involved in the cleanup of nuclear waste at nationwide sites and facilities. The waste, a result of the production of nuclear weapons, has affected sovereign Tribal nations located near these facilities. These Tribal nations have been impacted by different types of waste contamination, and their participation in the EM mission is critical.

  8. commercial buildings initiative | netl.doe.gov

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

    Commercial Buildings Initiative The DOE Building Technologies Office works with the commercial building industry to accelerate the use of energy efficiency technologies in both existing and new commercial buildings. The DOE Building Technologies Office strives to reduce energy consumption across the commercial building sector by developing, demonstrating and deploying cost-effective solutions. Commercial Buildings Initiative: http://www1.eere.energy.gov/buildings/commercial/index.html

  9. Enterprise SRS Future Initiatives | Department of Energy

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

    Future Initiatives Enterprise SRS Future Initiatives SRS has a sound heritage based on innovation and expertise with a willingness to take on complex challenges to improve and enhance the security of our nation. The expertise and technical capabilities of SRNL, combined with the SRS infrastructure, facilities, and safety culture, make SRS a prime location for the deployment of innovative solutions to address the nation's most pressing issues in clean energy, national security and environmental

  10. Asset Revitalization Initiative | Department of Energy

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

    Asset Revitalization Initiative The Asset Revitalization Initiative (ARI) focuses on communicating past efforts and lessons learned from DOE’s long history of asset revitalization and focus current and future efforts to improve the efficiency and effectiveness of future land, asset and facility transfer and beneficial reuse. Since the 1950’s, DOE and its predecessor agencies have completed over 200 transfers of approximately 200,000 acres of land, facilities and other assets for

  11. PROJECT PROFILE: Photovoltaic Stakeholder Engagement Initiatives |

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

    Department of Energy Photovoltaic Stakeholder Engagement Initiatives PROJECT PROFILE: Photovoltaic Stakeholder Engagement Initiatives Funding Opportunity: SuNLaMP SunShot Subprogram: Photovoltaics Location: Sandia National Lab, Albuquerque, NM SunShot Award Amount: $89,000 This project is focused on independent stakeholder engagement activities conducted by Sandia National Laboratory relating to photovoltaic (PV) outreach at the national and international level. APPROACH The International

  12. Understanding the anisotropic initiation sensitivity of shocked

    Office of Scientific and Technical Information (OSTI)

    pentaerythritol tetranitrate (PETN) single crystals (Journal Article) | SciTech Connect Understanding the anisotropic initiation sensitivity of shocked pentaerythritol tetranitrate (PETN) single crystals Citation Details In-Document Search Title: Understanding the anisotropic initiation sensitivity of shocked pentaerythritol tetranitrate (PETN) single crystals Authors: Kim, K ; Fried, L E ; Yoh, J Publication Date: 2013-08-27 OSTI Identifier: 1212825 Report Number(s): LLNL-JRNL-643055 DOE

  13. SunShot Photovoltaic Manufacturing Initiative | Department of...

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

    Technology to Market SunShot Photovoltaic Manufacturing Initiative SunShot Photovoltaic Manufacturing Initiative The SunShot Photovoltaic Manufacturing Initiative (PVMI) invests ...

  14. EERE - Energy Data Initiative | OpenEI Community

    Open Energy Info (EERE)

    EERE - Energy Data Initiative Home > EERE - Energy Data Initiative > Posts by term > EERE - Energy Data Initiative Content Group Activity By term Q & A Feeds Term: Open Data Type...

  15. Energy Data Initiative (EDI) | OpenEI Community

    Open Energy Info (EERE)

    Energy Data Initiative (EDI) Home > Energy Data Initiative (EDI) > Posts by term > Energy Data Initiative (EDI) Content Group Activity By term Q & A Feeds Term: building load data...

  16. Energy Data Initiative (EDI) | OpenEI Community

    Open Energy Info (EERE)

    Energy Data Initiative (EDI) Home > Energy Data Initiative (EDI) > Posts by term > Energy Data Initiative (EDI) Content Group Activity By term Q & A Feeds Term: datasets Type Term...

  17. Energy Data Initiative (EDI) | OpenEI Community

    Open Energy Info (EERE)

    Energy Data Initiative (EDI) Home > Energy Data Initiative (EDI) > Posts by term > Energy Data Initiative (EDI) Content Group Activity By term Q & A Feeds Term: EERE Type Term...

  18. Energy Data Initiative (EDI) | OpenEI Community

    Open Energy Info (EERE)

    Energy Data Initiative (EDI) Home > Energy Data Initiative (EDI) > Posts by term > Energy Data Initiative (EDI) Content Group Activity By term Q & A Feeds Term: developer Type Term...

  19. Energy Data Initiative (EDI) | OpenEI Community

    Open Energy Info (EERE)

    Energy Data Initiative (EDI) Home > Energy Data Initiative (EDI) > Posts by term > Energy Data Initiative (EDI) Content Group Activity By term Q & A Feeds Term: electric load data...

  20. Energy Data Initiative (EDI) | OpenEI Community

    Open Energy Info (EERE)

    Energy Data Initiative (EDI) Home > Energy Data Initiative (EDI) > Posts by term > Energy Data Initiative (EDI) Content Group Activity By term Q & A Feeds Term: Datapalooza Type...

  1. Energy Data Initiative (EDI) | OpenEI Community

    Open Energy Info (EERE)

    Energy Data Initiative (EDI) Home > Energy Data Initiative (EDI) > Posts by term > Energy Data Initiative (EDI) Content Group Activity By term Q & A Feeds Term: commercial load...

  2. Energy Data Initiative (EDI) | OpenEI Community

    Open Energy Info (EERE)

    Energy Data Initiative (EDI) Home > Energy Data Initiative (EDI) > Posts by term > Energy Data Initiative (EDI) Content Group Activity By term Q & A Feeds Term: dataset Type Term...

  3. Energy Data Initiative (EDI) | OpenEI Community

    Open Energy Info (EERE)

    Energy Data Initiative (EDI) Home > Energy Data Initiative (EDI) > Posts by term > Energy Data Initiative (EDI) Content Group Activity By term Q & A Feeds Term: FRED Type Term...

  4. Energy Data Initiative (EDI) | OpenEI Community

    Open Energy Info (EERE)

    Energy Data Initiative (EDI) Home > Energy Data Initiative (EDI) > Posts by term > Energy Data Initiative (EDI) Content Group Activity By term Q & A Feeds Term: load profile Type...

  5. Energy Data Initiative (EDI) | OpenEI Community

    Open Energy Info (EERE)

    Data Initiative (EDI) Home > Energy Data Initiative (EDI) > Posts by term > Energy Data Initiative (EDI) Content Group Activity By term Q & A Feeds Term: APIs Type Term Title...

  6. Energy Data Initiative (EDI) | OpenEI Community

    Open Energy Info (EERE)

    Energy Data Initiative (EDI) Home > Energy Data Initiative (EDI) > Posts by term > Energy Data Initiative (EDI) Content Group Activity By term Q & A Feeds Term: building load Type...

  7. EERE - Energy Data Initiative | OpenEI Community

    Open Energy Info (EERE)

    EERE - Energy Data Initiative Home > EERE - Energy Data Initiative > Posts by term > EERE - Energy Data Initiative Content Group Activity By term Q & A Feeds Term: EDI Type Term...

  8. EERE - Energy Data Initiative | OpenEI Community

    Open Energy Info (EERE)

    EERE - Energy Data Initiative Home > EERE - Energy Data Initiative > Posts by term > EERE - Energy Data Initiative Content Group Activity By term Q & A Feeds Term: EERE Type Term...

  9. EERE - Energy Data Initiative | OpenEI Community

    Open Energy Info (EERE)

    EERE - Energy Data Initiative Home > EERE - Energy Data Initiative > Posts by term > EERE - Energy Data Initiative Content Group Activity By term Q & A Feeds Term: Datapalooza Type...

  10. State and Regional Hydrogen Initiatives Meeting, Challenges for...

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

    and Regional Hydrogen Initiatives Meeting, Challenges for State and Regional Hydrogen Initiatives State and Regional Hydrogen Initiatives Meeting, Challenges for State and Regional ...

  11. DOE Initiative to Improve PM and EVM, Integration Survey Results...

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

    Initiative to Improve PM and EVM, Integration Survey Results DOE Initiative to Improve PM and EVM, Integration Survey Results DOE Initiative to Improve PM and EVM, Integration ...

  12. Hawaii Clean Energy Initiative Website | Open Energy Information

    Open Energy Info (EERE)

    Initiative Website Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Hawaii Clean Energy Initiative Website Author Hawaii Clean Energy Initiative...

  13. Dual initiation strip charge apparatus and methods for making...

    Office of Scientific and Technical Information (OSTI)

    A Dual Initiation Strip Charge (DISC) apparatus is initiated by a single initiation source and detonates a strip of explosive charge at two separate contacts. The reflection of ...

  14. Advanced Drop-In Biofuels Initiative Agenda | Department of Energy

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

    Drop-In Biofuels Initiative Agenda Advanced Drop-In Biofuels Initiative Agenda Agenda for the Advanced Drop-In Biofuels Initiative Industry Roundtable PDF icon ...

  15. Study of flow fields induced by surface dielectric barrier discharge actuator in low-pressure air

    SciTech Connect (OSTI)

    Che, Xueke E-mail: st@mail.iee.ac.cn; Nie, Wansheng; Tian, Xihui; Hou, Zhiyong; He, Haobo; Zhou, Penghui; Zhou, Siyin; Yang, Chao; Shao, Tao E-mail: st@mail.iee.ac.cn

    2014-04-15

    Surface dielectric barrier discharge (SDBD) is a promising method for a flow control. Flow fields induced by a SDBD actuator driven by the ac voltage in static air at low pressures varying from 1.0 to 27.7?kPa are measured by the particle image velocimetry method. The influence of the applied ac voltage frequency and magnitude on the induced flow fields is studied. The results show that three different classes of flow fields (wall jet flow field, complex flow field, and vortex-shape flow field) can be induced by the SDBD actuator in the low-pressure air. Among them, the wall jet flow field is the same as the tangential jet at atmospheric pressure, which is, together with the vertical jet, the complex flow field. The vortex-shape flow field is composed of one vertical jet which points towards the wall and two opposite tangential jets. The complex and the vortex-shape flow fields can be transformed to the wall jet flow field when the applied ac voltage frequency and magnitude are changed. It is found that the discharge power consumption increases initially, decreases, and then increases again at the same applied ac voltage magnitude when the air pressure decreases. The tangential velocity of the wall jet flow field increases when the air pressure decreases. It is however opposite for the complex flow field. The variation of the applied ac voltage frequency influences differently three different flow fields. When the applied ac voltage magnitude increases at the same applied ac voltage frequency, the maximal jet velocity increases, while the power efficiency increases only initially and then decreases again. The discharge power shows either linear or exponential dependences on the applied ac voltage magnitude.

  16. Fluid flow monitoring device

    DOE Patents [OSTI]

    McKay, Mark D.; Sweeney, Chad E.; Spangler, Jr., B. Samuel

    1993-01-01

    A flow meter and temperature measuring device comprising a tube with a body centered therein for restricting flow and a sleeve at the upper end of the tube to carry several channels formed longitudinally in the sleeve to the appropriate axial location where they penetrate the tube to allow pressure measurements and temperature measurements with thermocouples. The high pressure measurement is made using a channel penetrating the tube away from the body and the low pressure measurement is made at a location at the widest part of the body. An end plug seals the end of the device and holes at its upper end allow fluid to pass from the interior of the tube into a plenum. The channels are made by cutting grooves in the sleeve, the grooves widened at the surface of the sleeve and then a strip of sleeve material is welded to the grooves closing the channels. Preferably the sleeve is packed with powdered graphite before cutting the grooves and welding the strips.

  17. Annular flow diverter valve

    DOE Patents [OSTI]

    Rider, Robert L.

    1980-01-01

    A valve for diverting flow from the center of two concentric tubes to the annulus between the tubes or, operating in the reverse direction, for mixing fluids from concentric tubes into a common tube and for controlling the volume ratio of said flow consists of a toroidal baffle disposed in sliding engagement with the interior of the inner tube downstream of a plurality of ports in the inner tube, a plurality of gates in sliding engagement with the interior of the inner tube attached to the baffle for movement therewith, a servomotor having a bullet-shaped plug on the downstream end thereof, and drive rods connecting the servomotor to the toroidal baffle, the servomotor thereby being adapted to move the baffle into mating engagement with the bullet-shaped plug and simultaneously move the gates away from the ports in the inner tube and to move the baffle away from the bullet-shaped plug and simultaneously move the gates to cover the ports in the inner tube.

  18. Fluid flow monitoring device

    DOE Patents [OSTI]

    McKay, M.D.; Sweeney, C.E.; Spangler, B.S. Jr.

    1993-11-30

    A flow meter and temperature measuring device are described comprising a tube with a body centered therein for restricting flow and a sleeve at the upper end of the tube to carry several channels formed longitudinally in the sleeve to the appropriate axial location where they penetrate the tube to allow pressure measurements and temperature measurements with thermocouples. The high pressure measurement is made using a channel penetrating the tube away from the body and the low pressure measurement is made at a location at the widest part of the body. An end plug seals the end of the device and holes at its upper end allow fluid to pass from the interior of the tube into a plenum. The channels are made by cutting grooves in the sleeve, the grooves widened at the surface of the sleeve and then a strip of sleeve material is welded to the grooves closing the channels. Preferably the sleeve is packed with powdered graphite before cutting the grooves and welding the strips. 7 figures.

  19. Radial flow heat exchanger

    DOE Patents [OSTI]

    Valenzuela, Javier

    2001-01-01

    A radial flow heat exchanger (20) having a plurality of first passages (24) for transporting a first fluid (25) and a plurality of second passages (26) for transporting a second fluid (27). The first and second passages are arranged in stacked, alternating relationship, are separated from one another by relatively thin plates (30) and (32), and surround a central axis (22). The thickness of the first and second passages are selected so that the first and second fluids, respectively, are transported with laminar flow through the passages. To enhance thermal energy transfer between first and second passages, the latter are arranged so each first passage is in thermal communication with an associated second passage along substantially its entire length, and vice versa with respect to the second passages. The heat exchangers may be stacked to achieve a modular heat exchange assembly (300). Certain heat exchangers in the assembly may be designed slightly differently than other heat exchangers to address changes in fluid properties during transport through the heat exchanger, so as to enhance overall thermal effectiveness of the assembly.

  20. Simulations of ductile flow in brittle material processing

    SciTech Connect (OSTI)

    Luh, M.H.; Strenkowski, J.S.

    1988-12-01

    Research is continuing on the effects of thermal properties of the cutting tool and workpiece on the overall temperature distribution. Using an Eulerian finite element model, diamond and steel tools cutting aluminum have been simulated at various, speeds, and depths of cut. The relative magnitude of the thermal conductivity of the tool and the workpiece is believed to be a primary factor in the resulting temperature distribution in the workpiece. This effect is demonstrated in the change of maximum surface temperatures for diamond on aluminum vs. steel on aluminum. As a preliminary step toward the study of ductile flow in brittle materials, the relative thermal conductivities of diamond on polycarbonate is simulated. In this case, the maximum temperature shifts from the rake face of the tool to the surface of the machined workpiece, thus promoting ductile flow in the workpiece surface.

  1. UZ Flow Models and Submodels

    SciTech Connect (OSTI)

    Y. Wu

    2004-11-01

    The purpose of this report is to document the unsaturated zone (UZ) flow models and submodels, as well as the flow fields that have been generated using the UZ flow model(s) of Yucca Mountain, Nevada. In this report, the term ''UZ model'' refers to the UZ flow model and the several submodels, which include tracer transport, temperature or ambient geothermal, pneumatic or gas flow, and geochemistry (chloride, calcite, and strontium) submodels. The term UZ flow model refers to the three-dimensional models used for calibration and simulation of UZ flow fields. This work was planned in the ''Technical Work Plan (TWP) for: Unsaturated Zone Flow Analysis and Model Report Integration'' (BSC 2004 [DIRS 169654], Section 1.2.7). The table of included Features, Events, and Processes (FEPs), Table 6.2-11, is different from the list of included FEPs assigned to this report in the ''Technical Work Plan for: Unsaturated Zone Flow Analysis and Model Report Integration'' (BSC 2004 [DIRS 169654], Table 2.1.5-1), as discussed in Section 6.2.6. The UZ model has revised, updated, and enhanced the previous UZ model (BSC 2001 [DIRS 158726]) by incorporating the repository design with new grids, recalibration of property sets, and more comprehensive validation effort. The flow fields describe fracture-fracture, matrix-matrix, and fracture-matrix liquid flow rates, and their spatial distributions as well as moisture conditions in the UZ system. These three-dimensional UZ flow fields are used directly by Total System Performance Assessment (TSPA). The model and submodels evaluate important hydrogeologic processes in the UZ as well as geochemistry and geothermal conditions. These provide the necessary framework to test hypotheses of flow and transport at different scales, and predict flow and transport behavior under a variety of climatic conditions. In addition, the limitations of the UZ model are discussed in Section 8.11.

  2. DOE Advanced Scientific Computing Advisory Committee (ASCAC) Report: Exascale Computing Initiative Review

    SciTech Connect (OSTI)

    Reed, Daniel; Berzins, Martin; Pennington, Robert; Sarkar, Vivek; Taylor, Valerie

    2015-08-01

    On November 19, 2014, the Advanced Scientific Computing Advisory Committee (ASCAC) was charged with reviewing the Department of Energy’s conceptual design for the Exascale Computing Initiative (ECI). In particular, this included assessing whether there are significant gaps in the ECI plan or areas that need to be given priority or extra management attention. Given the breadth and depth of previous reviews of the technical challenges inherent in exascale system design and deployment, the subcommittee focused its assessment on organizational and management issues, considering technical issues only as they informed organizational or management priorities and structures. This report presents the observations and recommendations of the subcommittee.

  3. Magnetic Nanoparticle Capilary Flow as a Replacement for Lateral Flow

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

    Chromatography - Energy Innovation Portal Magnetic Nanoparticle Capilary Flow as a Replacement for Lateral Flow Chromatography Colorado School of Mines Contact CSM About This Technology Technology Marketing SummaryThis invention looks at method to detect targeted analytes. DescriptionThe method most often used now is Lateral Flow Chromatography (LFC) which has many drawbacks including: the need for extensive optimization, sensitivity, specificity, lack of quantitative data and extensive

  4. Measurement of the Muon Atmospheric Production Depth with the Water Cherenkov Detectors of the Pierre Auger Observatory

    SciTech Connect (OSTI)

    Molina Bueno, Laura

    2015-09-01

    Ultra-high-energy cosmic rays (UHECR) are particles of uncertain origin and composition, with energies above 1 EeV (1018 eV or 0.16 J). The measured flux of UHECR is a steeply decreasing function of energy. The largest and most sensitive apparatus built to date to record and study cosmic ray Extensive Air Showers (EAS) is the Pierre Auger Observatory. The Pierre Auger Observatory has produced the largest and finest amount of data ever collected for UHECR. A broad physics program is being carried out covering all relevant topics of the field. Among them, one of the most interesting is the problem related to the estimation of the mass composition of cosmic rays in this energy range. Currently the best measurements of mass are those obtained by studying the longitudinal development of the electromagnetic part of the EAS with the Fluorescence Detector. However, the collected statistics is small, specially at energies above several tens of EeV. Although less precise, the volume of data gathered with the Surface Detector is nearly a factor ten larger than the fluorescence data. So new ways to study composition with data collected at the ground are under investigation. The subject of this thesis follows one of those new lines of research. Using preferentially the time information associated with the muons that reach the ground, we try to build observables related to the composition of the primaries that initiated the EAS. A simple phenomenological model relates the arrival times with the depths in the atmosphere where muons are produced. The experimental confirmation that the distributions of muon production depths (MPD) correlate with the mass of the primary particle has opened the way to a variety of studies, of which this thesis is a continuation, with the aim of enlarging and improving its range of applicability. We revisit the phenomenological model which is at the root of the analysis and discuss a new way to improve some aspects of the model. We carry out a thorough revision of the original analysis with the aim of understanding the different contributions to the total bias and resolution when building MPDs on an event-by-event basis. We focus on an alternative way to build MPDs by considering average MPDs for ensembles of air-showers, with the aim of enlarging the range of applicability of this kind of analysis. Finally, we analyze how different improvements in the Surface Detector electronics and its internal configuration affect the resolution of the MPD. We conclude by summarizing the main results and discussing potential ways to improve MPD-based mass composition studies.

  5. Investigations of initiation spot size effects

    SciTech Connect (OSTI)

    Clarke, Steven A; Akinci, Adrian A; Leichty, Gary; Schaffer, Timothy; Murphy, Michael J; Munger, Alan; Thomas, Keith A

    2010-01-01

    As explosive components become smaller, a greater understanding of the effect of initiation spot size on detonation becomes increasingly critical. A series of tests of the effect of initiation spot size will be described. A series of DOI (direct optical initiation) detonators with initiation spots sizes from {approx}50 um to 1000um have been tested to determine laser parameters for threshold firing of low density PETN pressings. Results will be compared with theoretical predictions. Outputs of the initiation source (DOI ablation) have been characterized by a suite of diagnostics including PDV and schlieren imaging. Outputs of complete detonators have been characterized using PDV, streak, and/or schlieren imaging. At present, we have not found the expected change in the threshold energy to spot size relationship for DOI type detonators found in similar earlier for projectiles, slappers and EBWs. New detonators designs (Type C) are currently being tested that will allow the determination of the threshold for spot sizes from 250 um to 105um, where we hope to see change in the threshold vs. spot size relationship. Also, one test of an extremely small diameter spot size (50um) has resulted in preliminary NoGo only results even at energy densities as much as 8 times the energy density of the threshold results presented here. This gives preliminary evidence that 50um spot may be beyond the critical initiation diameter. The constant threshold energy to spot size relationship in the data to date does however still give some insight into the initiation mechanism of DOI detonators. If the DOI initiation mechanism were a 1D mechanism similar to a slapper or a flyer impact, the expected inflection point in the graph would have been between 300um and 500um diameter spot size, within the range of the data presented here. The lack of that inflection point indicates that the DOI initiation mechanism is more likely a 2D mechanism similar to a sphere or rod projectile. We expect to see a three region response as the results from the smaller spot size Type C detonators are completed.

  6. Kauai Groundwater Flow Model

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

    Nicole Lautze

    2015-01-01

    Groundwater flow model for Kauai. Data is from the following sources: Whittier, R. and A.I. El-Kadi. 2014. Human and Environmental Risk Ranking of Onsite Sewage Disposal Systems For the Hawaiian Islands of Kauai, Molokai, Maui, and Hawaii – Final. Prepared by the University of Hawaii, Dept. of Geology and Geophysics for the State of Hawaii Dept. of Health, Safe Drinking Water Branch. September 2014.; and Whittier, R.B., K. Rotzoll, S. Dhal, A.I. El-Kadi, C. Ray, G. Chen, and D. Chang. 2004. Hawaii Source Water Assessment Program Report – Volume IV – Island of Kauai Source Water Assessment Program Report. Prepared for the Hawaii Department of Health, Safe Drinking Water Branch. University of Hawaii, Water Resources Research Center. Updated 2015.

  7. Kauai Groundwater Flow Model

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

    Nicole Lautze

    2015-01-01

    Groundwater flow model for Kauai. Data is from the following sources: Whittier, R. and A.I. El-Kadi. 2014. Human and Environmental Risk Ranking of Onsite Sewage Disposal Systems For the Hawaiian Islands of Kauai, Molokai, Maui, and Hawaii Final. Prepared by the University of Hawaii, Dept. of Geology and Geophysics for the State of Hawaii Dept. of Health, Safe Drinking Water Branch. September 2014.; and Whittier, R.B., K. Rotzoll, S. Dhal, A.I. El-Kadi, C. Ray, G. Chen, and D. Chang. 2004. Hawaii Source Water Assessment Program Report Volume IV Island of Kauai Source Water Assessment Program Report. Prepared for the Hawaii Department of Health, Safe Drinking Water Branch. University of Hawaii, Water Resources Research Center. Updated 2015.

  8. Category:Flow Test | Open Energy Information

    Open Energy Info (EERE)

    Flow Test Jump to: navigation, search Geothermalpower.jpg Looking for the Flow Test page? For detailed information on Flow Test, click here. Category:Flow Test Add.png Add a new...

  9. Asset Revitalization Initiative Update by Cynthia Anderson and...

    Office of Environmental Management (EM)

    Asset Revitalization Initiative 1 Sustainability Efficiency Community The Asset ... Asset Revitalization Initiative Sustainability Efficiency Community * Since 2005, we have ...

  10. MARTINI event generator for heavy quarks: Initialization, parton...

    Office of Scientific and Technical Information (OSTI)

    Initialization, parton evolution, and hadronization Prev Next Title: MARTINI event generator for heavy quarks: Initialization, parton evolution, and hadronization ...

  11. Uranyl Nitrate Flow Loop

    SciTech Connect (OSTI)

    Ladd-Lively, Jennifer L

    2008-10-01

    The objectives of the work discussed in this report were to: (1) develop a flow loop that would simulate the purified uranium-bearing aqueous stream exiting the solvent extraction process in a natural uranium conversion plant (NUCP); (2) develop a test plan that would simulate normal operation and disturbances that could be anticipated in an NUCP; (3) use the flow loop to test commercially available flowmeters for use as safeguards monitors; and (4) recommend a flowmeter for production-scale testing at an NUCP. There has been interest in safeguarding conversion plants because the intermediate products [uranium dioxide (UO{sub 2}), uranium tetrafluoride (UF{sub 4}), and uranium hexafluoride (UF{sub 6})] are all suitable uranium feedstocks for producing special nuclear materials. Furthermore, if safeguards are not applied virtually any nuclear weapons program can obtain these feedstocks without detection by the International Atomic Energy Agency (IAEA). Historically, IAEA had not implemented safeguards until the purified UF{sub 6} product was declared as feedstock for enrichment plants. H. A. Elayat et al. provide a basic definition of a safeguards system: 'The function of a safeguards system on a chemical conversion plant is in general terms to verify that no useful nuclear material is being diverted to use in a nuclear weapons program'. The IAEA now considers all highly purified uranium compounds as candidates for safeguarding. DOE is currently interested in 'developing instruments, tools, strategies, and methods that could be of use to the IAEA in the application of safeguards' for materials found in the front end of the nuclear fuel cycle-prior to the production of the uranium hexafluoride or oxides that have been the traditional starting point for IAEA safeguards. Several national laboratories, including Oak Ridge, Los Alamos, Lawrence Livermore, and Brookhaven, have been involved in developing tools or techniques for safeguarding conversion plants. This study was sponsored by the U.S. Department of Energy (DOE) NA-241, Office of Dismantlement and Transparency.

  12. Seismic Velocity Structure and Depth-Dependence of Anisotropy in the Red Sea and Arabian Shield from Surface Wave Analysis

    SciTech Connect (OSTI)

    Hansen, S; Gaherty, J; Schwartz, S; Rodgers, A; Al-Amri, A

    2007-07-25

    We investigate the lithospheric and upper mantle structure as well as the depth-dependence of anisotropy along the Red Sea and beneath the Arabian Peninsula using receiver function constraints and phase velocities of surface waves traversing two transects of stations from the Saudi Arabian National Digital Seismic Network. Frequency-dependent phase delays of fundamental-mode Love and Rayleigh waves, measured using a cross-correlation procedure, require very slow shear velocities and the presence of anisotropy throughout the upper mantle. Linearized inversion of these data produce path-averaged 1D radially anisotropic models with about 4% anisotropy in the lithosphere, increasing to about 4.8% anisotropy across the lithosphere-asthenosphere boundary (LAB). Models with reasonable crustal velocities in which the mantle lithosphere is isotropic cannot satisfy the data. The lithospheric lid, which ranges in thickness from about 70 km near the Red Sea coast to about 90 km beneath the Arabian Shield, is underlain by a pronounced low-velocity zone with shear velocities as low as 4.1 km/s. Forward models, which are constructed from previously determined shear-wave splitting estimates, can reconcile surface and body wave observations of anisotropy. The low shear velocity values are similar to many other continental rift and oceanic ridge environments. These low velocities combined with the sharp velocity contrast across the LAB may indicate the presence of partial melt beneath Arabia. The anisotropic signature primarily reflects a combination of plate- and density-driven flow associated with active rifting processes in the Red Sea.

  13. Systems and methods that generate height map models for efficient three dimensional reconstruction from depth information

    DOE Patents [OSTI]

    Frahm, Jan-Michael; Pollefeys, Marc Andre Leon; Gallup, David Robert

    2015-12-08

    Methods of generating a three dimensional representation of an object in a reference plane from a depth map including distances from a reference point to pixels in an image of the object taken from a reference point. Weights are assigned to respective voxels in a three dimensional grid along rays extending from the reference point through the pixels in the image based on the distances in the depth map from the reference point to the respective pixels, and a height map including an array of height values in the reference plane is formed based on the assigned weights. An n-layer height map may be constructed by generating a probabilistic occupancy grid for the voxels and forming an n-dimensional height map comprising an array of layer height values in the reference plane based on the probabilistic occupancy grid.

  14. Surface hardening of titanium alloys with melting depth controlled by heat sink

    DOE Patents [OSTI]

    Oden, Laurance L.; Turner, Paul C.

    1995-01-01

    A process for forming a hard surface coating on titanium alloys includes providing a piece of material containing titanium having at least a portion of one surface to be hardened. The piece having a portion of a surface to be hardened is contacted on the backside by a suitable heat sink such that the melting depth of said surface to be hardened may be controlled. A hardening material is then deposited as a slurry. Alternate methods of deposition include flame, arc, or plasma spraying, electrodeposition, vapor deposition, or any other deposition method known by those skilled in the art. The surface to be hardened is then selectively melted to the desired depth, dependent on the desired coating thickness, such that a molten pool is formed of the piece surface and the deposited hardening material. Upon cooling a hardened surface is formed.

  15. 2006 Nuclear Energy Research Initiative Awards | Department of Energy

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

    Nuclear Energy Research Initiative Awards 2006 Nuclear Energy Research Initiative Awards This is the list of winners from the 2006 Nuclear Energy Research Initiative Awards. PDF icon 2006 Nuclear Energy Research Initiative Awards More Documents & Publications 2006 NUCLEAR ENERGY RESEARCH INITIATIVE AWARDS International Nuclear Energy Research Initiative: 2010 Annual Report NEET Awards for FY2012

  16. Modeling shock initiation in Composition B

    SciTech Connect (OSTI)

    Murphy, M.J.; Lee, E.L.; Weston, A.M.; Williams, A.E.

    1993-05-01

    A hydrodynamic modeling study of the shock initiation behavior of Composition B explosive was performed using the {open_quotes}Ignition and Growth of Reaction in High Explosive{close_quotes} model developed at the Lawrence Livermore National Laboratory. The HE (heterogeneous explosives) responses were computed using the CALE and DYNA2D hydrocodes and then compared to experimental results. The data from several standard shock initiation and HE performance experiments was used to determine the parameters required for the model. Simulations of the wedge tests (pop plots) and failure diameter tests were found to be sufficient for defining the ignition and growth parameters used in the two term version of the computational model. These coefficients were then applied in the response analysis of several Composition B impact initiation experiments. A description of the methodology used to determine the coefficients and the resulting range of useful application of the ignition and growth of reaction model is described.

  17. Active combustion flow modulation valve

    DOE Patents [OSTI]

    Hensel, John Peter; Black, Nathaniel; Thorton, Jimmy Dean; Vipperman, Jeffrey Stuart; Lambeth, David N; Clark, William W

    2013-09-24

    A flow modulation valve has a slidably translating hollow armature with at least one energizable coil wound around and fixably attached to the hollow armature. The energizable coil or coils are influenced by at least one permanent magnet surrounding the hollow armature and supported by an outer casing. Lorentz forces on the energizable coils which are translated to the hollow armature, increase or decrease the flow area to provide flow throttling action. The extent of hollow armature translation depends on the value of current supplied and the direction of translation depends on the direction of current flow. The compact nature of the flow modulation valve combined with the high forces afforded by the actuator design provide a flow modulation valve which is highly responsive to high-rate input control signals.

  18. Evaluation of the Effective Moisture Penetration Depth Model for Estimating Moisture Buffering in Buildings

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

    Evaluation of the Effective Moisture Penetration Depth Model for Estimating Moisture Buffering in Buildings J. Woods, J. Winkler, and D. Christensen National Renewable Energy Laboratory Technical Report NREL/TP-5500-57441 January 2013 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401

  19. New method to determine planetary boundary layer depth | U.S. DOE Office of

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

    Science (SC) New method to determine planetary boundary layer depth Biological and Environmental Research (BER) BER Home About Research Facilities Science Highlights Searchable Archive of BER Highlights External link Benefits of BER Funding Opportunities Biological & Environmental Research Advisory Committee (BERAC) Community Resources Contact Information Biological and Environmental Research U.S. Department of Energy SC-23/Germantown Building 1000 Independence Ave., SW Washington, DC

  20. DOE/SC-ARM/TR-129 Aerosol Optical Depth Value-Added Product

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

    9 Aerosol Optical Depth Value-Added Product A Koontz C Flynn G Hodges J Michalsky J Barnard March 2013 DISCLAIMER This report was prepared as an account of work sponsored by the U.S. Government. Neither the United States nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use

  1. Small-angle Compton Scattering to Determine the Depth of a Radioactive Source in Matter

    SciTech Connect (OSTI)

    Oberer, R. B.; Gunn, C. A.; Chiang, L. G.; Valiga, R. E.; Cantrell, J. A.

    2011-04-01

    A gamma-ray peak in a spectrum is often accompanied by a discontinuity in the Compton continuum at the peak. The Compton continuum results from Compton scattering in the detector. The discontinuity at a peak results from small-angle Compton scattering by the gamma rays in matter situated directly between the gamma-ray source and the detector. The magnitude of this discontinuity with respect to the gamma-ray peak is therefore an indicator of the amount of material or shielding between the gamma-ray source and the detector. This small-angle scattering was used to determine the depth of highly-enriched uranium (HEU) solution standards in a concrete floor mockup. The empirical results of the use of this small-angle scattering discontinuity in a concrete floor experiment will be described. A Monte Carlo calculation of the experiment will also be described. In addition, the depth determined from small-angle scattering was used in conjunction with differential attenuation to more accurately measure the uranium content of the mockup. Following these empirical results, the theory of small-angle scattering will be discussed. The magnitude of the discontinuity compared to the peak count rate is directly related to the depth of the gamma-ray source in matter. This relation can be described by relatively simple mathematical expressions. This is the first instance that we are aware of in which the small-angle Compton scattering has been used to determine the depth of a radioactive source. Furthermore this is the first development of the theoretical expressions for the magnitude of the small-angle scattering discontinuity.

  2. Modular initiator with integrated optical diagnostic

    DOE Patents [OSTI]

    Alam, M. Kathleen; Schmitt, Randal L.; Welle, Eric J.; Madden, Sean P.

    2011-05-17

    A slapper detonator which integrally incorporates an optical wavequide structure for determining whether there has been degradation of the explosive in the explosive device that is to be initiated by the detonator. Embodiments of this invention take advantage of the barrel-like character of a typical slapper detonator design. The barrel assembly, being in direct contact with the energetic material, incorporates an optical diagnostic device into the barrel assembly whereby one can monitor the state of the explosive material. Such monitoring can be beneficial because the chemical degradation of the explosive plays an important in achieving proper functioning of a detonator/initiator device.

  3. Integrated Renewable Energy and Campus Sustainability Initiative

    SciTech Connect (OSTI)

    Uthoff, Jay; Jensen, Jon; Bailey, Andrew

    2013-09-25

    Renewable energy, energy conservation, and other sustainability initiatives have long been a central focus of Luther College. The DOE funded Integrated Renewable Energy and Campus Sustainability Initiative project has helped accelerate the College’s progress toward carbon neutrality. DOE funds, in conjunction with institutional matching funds, were used to fund energy conservation projects, a renewable energy project, and an energy and waste education program aimed at all campus constituents. The energy and waste education program provides Luther students with ideas about sustainability and conservation guidelines that they carry with them into their future communities.

  4. Clean Coal Power Initiative | Department of Energy

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

    Clean Coal Power Initiative Clean Coal Power Initiative "Clean coal technology" describes a new generation of energy processes that sharply reduce air emissions and other pollutants from coal-burning power plants. In the late 1980s and early 1990s, the U.S. Department of Energy conducted a joint program with industry and State agencies to demonstrate the best of these new technologies at scales large enough for companies to make commercial decisions. More than 20 of the technologies

  5. The deep hydrogeologic flow system underlying the Oak Ridge Reservation

    SciTech Connect (OSTI)

    Nativ, R.; Hunley, A.E.

    1993-07-01

    The deep hydrogeologic system underlying the Oak Ridge Reservation contains some areas contaminated with radionuclides, heavy metals, nitrates, and organic compounds. The groundwater at that depth is saline and has previously been considered stagnant. On the basis of existing and newly collected data, the nature of flow of the saline groundwater and its potential discharge into shallow, freshwater systems was assessed. Data used for this purpose included (1) spatial and temporal pressures and hydraulic heads measured in the deep system, (2) hydraulic parameters of the formations in question, (3) spatial temperature variations, and (4) spatial and temporal chemical and isotopic composition of the saline groundwater. In addition, chemical analyses of brine in adjacent areas in Tennessee, Kentucky, Ohio, Pennsylvania, and West Virginia were compared with the deep water underlying the reservation to help assess the origin of the brine. Preliminary conclusions suggest that the saline water contained at depth is old but not isolated (in terms of recharge and discharge) from the overlying active and freshwater-bearing units. The confined water (along with dissolved solutes) moves along open fractures (or man-made shortcuts) at relatively high velocity into adjacent, more permeable units. Groundwater volumes involved in this flow probably are small.

  6. STARSPOTS-TRANSIT DEPTH RELATION OF THE EVAPORATING PLANET CANDIDATE KIC 12557548b

    SciTech Connect (OSTI)

    Kawahara, Hajime; Kurosaki, Kenji; Ito, Yuichi; Ikoma, Masahiro; Hirano, Teruyuki

    2013-10-10

    Violent variation of transit depths and an ingress-egress asymmetry of the transit light curve discovered in KIC 12557548 have been interpreted as evidence of a catastrophic evaporation of atmosphere with dust ( M-dot {sub p}?>1 M{sub ?} Gyr{sup 1}) from a close-in small planet. To explore what drives the anomalous atmospheric escape, we perform time-series analysis of the transit depth variation of Kepler archival data for ?3.5 yr. We find a ?30% periodic variation of the transit depth with P {sub 1} = 22.83 0.21 days, which is within the error of the rotation period of the host star estimated using the light curve modulation, P {sub rot} = 22.91 0.24 days. We interpret the results as evidence that the atmospheric escape of KIC 12557548b correlates with stellar activity. We consider possible scenarios that account for both the mass loss rate and the correlation with stellar activity. X-ray and ultraviolet (XUV)-driven evaporation is possible if one accepts a relatively high XUV flux and a high efficiency for converting the input energy to the kinetic energy of the atmosphere. Star-planet magnetic interaction is another possible scenario, though huge uncertainty remains for the mass loss rate.

  7. Method for the depth corrected detection of ionizing events from a co-planar grids sensor

    DOE Patents [OSTI]

    De Geronimo, Gianluigi; Bolotnikov, Aleksey E.; Carini, Gabriella

    2009-05-12

    A method for the detection of ionizing events utilizing a co-planar grids sensor comprising a semiconductor substrate, cathode electrode, collecting grid and non-collecting grid. The semiconductor substrate is sensitive to ionizing radiation. A voltage less than 0 Volts is applied to the cathode electrode. A voltage greater than the voltage applied to the cathode is applied to the non-collecting grid. A voltage greater than the voltage applied to the non-collecting grid is applied to the collecting grid. The collecting grid and the non-collecting grid are summed and subtracted creating a sum and difference respectively. The difference and sum are divided creating a ratio. A gain coefficient factor for each depth (distance between the ionizing event and the collecting grid) is determined, whereby the difference between the collecting electrode and the non-collecting electrode multiplied by the corresponding gain coefficient is the depth corrected energy of an ionizing event. Therefore, the energy of each ionizing event is the difference between the collecting grid and the non-collecting grid multiplied by the corresponding gain coefficient. The depth of the ionizing event can also be determined from the ratio.

  8. Financing Program Implementation Process Flow

    Broader source: Energy.gov [DOE]

    The implementation process flow for financing with two models: a generic option for primary markets and a conceptual option for secondary markets.

  9. Flow Test | Open Energy Information

    Open Energy Info (EERE)

    borehole geophysics in defining the physical characteristics of the Raft River geothermal reservoir, Idaho Flow Test At Raft River Geothermal Area (2004) Raft River Geothermal Area...

  10. State and Regional Hydrogen Initiatives Meeting, Challenges for State and Regional Hydrogen Initiatives

    Broader source: Energy.gov [DOE]

    These notes from the State and Regional Hydrogen Initiatives Meeting in March 2007 provides discussion points from the Coalition Management Breakout Session.

  11. SunShot Initiative Portfolio Book 2014

    SciTech Connect (OSTI)

    Solar Energy Technologies Office

    2014-05-01

    The 2014 SunShot Initiative Portfolio Book outlines the progress towards the goals outlined in the SunShot Vision Study. Contents include overviews of each of SunShot’s five subprogram areas, as well as a description of every active project in the SunShot’s project portfolio as of May 2014.

  12. Initial borehole acoustic televiewer data processing algorithms

    SciTech Connect (OSTI)

    Moore, T.K.

    1988-06-01

    With the development of a new digital televiewer, several algorithms have been developed in support of off-line data processing. This report describes the initial set of utilities developed to support data handling as well as data display. Functional descriptions, implementation details, and instructions for use of the seven algorithms are provided. 5 refs., 33 figs., 1 tab.

  13. Nanostructure-initiator mass spectrometry biometrics

    DOE Patents [OSTI]

    Leclerc, Marion; Bowen, Benjamin; Northen, Trent

    2015-09-08

    Several embodiments described herein are drawn to methods of identifying an analyte on a subject's skin, methods of generating a fingerprint, methods of determining a physiological change in a subject, methods of diagnosing health status of a subject, and assay systems for detecting an analyte and generating a fingerprint, by nanostructure-initiator mass spectrometry (NIMS).

  14. Analysis of the Climate Change Technology Initiative

    Reports and Publications (EIA)

    1999-01-01

    Analysis of the impact of specific policies on the reduction of carbon emissions and their impact on U.S. energy use and prices in the 2008-2012 time frame. Also, analyzes the impact of the President's Climate Change Technology Initiative, as defined for the 2000 budget, on reducing carbon emissions from the levels forecast in the Annual Energy Outlook 1999 reference case.

  15. Energy Transition Initiative: Islands Playbook (Book)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01

    The Island Energy Playbook (the Playbook) provides an action-oriented guide to successfully initiating, planning, and completing a transition to an energy system that primarily relies on local resources to eliminate a dependence on one or two imported fuels. It is intended to serve as a readily available framework that any community can adapt to organize its own energy transition effort.

  16. WIPP Environmental Initiatives Earn DOE Recognition

    Broader source: Energy.gov [DOE]

    CARLSBAD, N.M., October 29, 2012 – The U.S. Department of Energy (DOE) recently recognized four initiatives at the Waste Isolation Pilot Plant (WIPP) and more than 20 people for improvements in energy, water and fleet efficiency while reducing pollution and waste across the DOE complex.

  17. Argonne's Resilient Infrastructure Initiative | Argonne National Laboratory

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

    Resilient Infrastructure Initiative Share Topic Energy Energy efficiency Building design Security Facility security Browse By - Any - Energy -Energy efficiency --Vehicles ---Alternative fuels ---Automotive engineering ---Diesel ---Electric drive technology ---Hybrid & electric vehicles ---Hydrogen & fuel cells ---Internal combustion ---Powertrain research --Building design ---Construction --Manufacturing -Energy sources --Renewable energy ---Bioenergy ---Solar energy --Fossil fuels

  18. Fast radial flows in transition disk holes

    SciTech Connect (OSTI)

    Rosenfeld, Katherine A.; Andrews, Sean M.; Chiang, Eugene

    2014-02-20

    Protoplanetary 'transition' disks have large, mass-depleted central cavities, yet also deliver gas onto their host stars at rates comparable to disks without holes. The paradox of simultaneous transparency and accretion can be explained if gas flows inward at much higher radial speeds inside the cavity than outside the cavity, since surface density (and by extension optical depth) varies inversely with inflow velocity at fixed accretion rate. Radial speeds within the cavity might even have to approach free-fall values to explain the huge surface density contrasts inferred for transition disks. We identify observational diagnostics of fast radial inflow in channel maps made in optically thick spectral lines. Signatures include (1) twisted isophotes in maps made at low systemic velocities and (2) rotation of structures observed between maps made in high-velocity line wings. As a test case, we apply our new diagnostic tools to archival Atacama Large Millimeter Array data on the transition disk HD 142527 and uncover evidence for free-fall radial velocities inside its cavity. Although the observed kinematics are also consistent with a disk warp, the radial inflow scenario is preferred because it predicts low surface densities that appear consistent with recent observations of optically thin CO isotopologues in this disk. How material in the disk cavity sheds its angular momentum wholesale to fall freely onto the star is an unsolved problem; gravitational torques exerted by giant planets or brown dwarfs are briefly discussed as a candidate mechanism.

  19. Experimental investigation of ice slurry flow pressure drop in horizontal tubes

    SciTech Connect (OSTI)

    Grozdek, Marino; Khodabandeh, Rahmatollah; Lundqvist, Per [Royal Institute of Technology, Department of Energy Technology, Division of Applied Thermodynamics and Refrigeration, Brinellvaegen 68, 10044 Stockholm (Sweden)

    2009-01-15

    Pressure drop behaviour of ice slurry based on ethanol-water mixture in circular horizontal tubes has been experimentally investigated. The secondary fluid was prepared by mixing ethyl alcohol and water to obtain initial alcohol concentration of 10.3% (initial freezing temperature -4.4 C). The pressure drop tests were conducted to cover laminar and slightly turbulent flow with ice mass fraction varying from 0% to 30% depending on test conditions. Results from flow tests reveal much higher pressure drop for higher ice concentrations and higher velocities in comparison to the single phase flow. However for ice concentrations of 15% and higher, certain velocity exists at which ice slurry pressure drop is same or even lower than for single phase flow. It seems that higher ice concentration delay flow pattern transition moment (from laminar to turbulent) toward higher velocities. In addition experimental results for pressure drop were compared to the analytical results, based on Poiseulle and Buckingham-Reiner models for laminar flow, Blasius, Darby and Melson, Dodge and Metzner, Steffe and Tomita for turbulent region and general correlation of Kitanovski which is valid for both flow regimes. For laminar flow and low buoyancy numbers Buckingham-Reiner method gives good agreement with experimental results while for turbulent flow best fit is provided with Dodge-Metzner and Tomita methods. Furthermore, for transport purposes it has been shown that ice mass fraction of 20% offers best ratio of ice slurry transport capability and required pumping power. (author)

  20. PRESENTATION: OVERVIEW OF THE SUNSHOT INITIATIVE | Department of Energy

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

    THE SUNSHOT INITIATIVE PRESENTATION: OVERVIEW OF THE SUNSHOT INITIATIVE A briefing to the Secretary's Energy Advisory Board on the SunShot Initiative delivered by Minh Le, Director of the SunShot Initiative. PDF icon Overview of the SunShot Initiative More Documents & Publications 2014 SunShot Initiative Portfolio Book: Introduction SunShot Initiative 2014 Portfolio Overview Download the Final Agenda

  1. Direct flow crystal growth system

    DOE Patents [OSTI]

    Montgomery, Kenneth E.; Milanovich, Fred P.

    1992-01-01

    A crystal is grown in a constantly filtered solution which is flowed directly into the growing face of a crystal. In a continuous flow system, solution at its saturation temperature is removed from a crystal growth tank, heated above its saturation temperature, filtered, cooled back to its saturation temperature, and returned to the tank.

  2. Redox Flow Batteries, a Review

    SciTech Connect (OSTI)

    U. Tennessee Knoxville; U. Texas Austin; McGill U; Weber, Adam Z.; Mench, Matthew M.; Meyers, Jeremy P.; Ross, Philip N.; Gostick, Jeffrey T.; Liu, Qinghua

    2011-07-15

    Redox flow batteries are enjoying a renaissance due to their ability to store large amounts of electrical energy relatively cheaply and efficiently. In this review, we examine the components of redox flow batteries with a focus on understanding the underlying physical processes. The various transport and kinetic phenomena are discussed along with the most common redox couples.

  3. Apparatus for measuring fluid flow

    DOE Patents [OSTI]

    Smith, J.E.; Thomas, D.G.

    Flow measuring apparatus includes a support loop having strain gages mounted thereon and a drag means which is attached to one end of the support loop and which bends the sides of the support loop and induces strains in the strain gages when a flow stream impacts thereon.

  4. A methodology for analyzing precursors to earthquake-initiated and fire-initiated accident sequences

    SciTech Connect (OSTI)

    Budnitz, R.J.; Lambert, H.E.; Apostolakis, G. and others

    1998-04-01

    This report covers work to develop a methodology for analyzing precursors to both earthquake-initiated and fire-initiated accidents at commercial nuclear power plants. Currently, the U.S. Nuclear Regulatory Commission sponsors a large ongoing project, the Accident Sequence Precursor project, to analyze the safety significance of other types of accident precursors, such as those arising from internally-initiated transients and pipe breaks, but earthquakes and fires are not within the current scope. The results of this project are that: (1) an overall step-by-step methodology has been developed for precursors to both fire-initiated and seismic-initiated potential accidents; (2) some stylized case-study examples are provided to demonstrate how the fully-developed methodology works in practice, and (3) a generic seismic-fragility date base for equipment is provided for use in seismic-precursors analyses. 44 refs., 23 figs., 16 tabs.

  5. Relationship Between Heat Flows and Geological Structures in the Sichuan Basin, P.R. China

    SciTech Connect (OSTI)

    Zeng, Y.; Yu, H.; Wang, X.

    1995-01-01

    Based on an extensive data collection and analysis, this research has provided reliable representations of the features of the geothermal fields, their heat flow, and relationships with geological structures in the Sichuan Basin. The isotherms below a depth of 1,000 m show high values in the Central Uplift and the Southwest Uplift, and low values in the Northwest and Southeast Depressions. These features probably indicate undulation of crystalline basement and structural depression. At depths greater than 3,000 m, the isotherms tend to become simpler and regionalized. The mean heat flow in the basin is 69.1 mW/m{sup 2}. In the Central Uplift, the Northwest Depression and the East of the basin, heat-flow values range from 58.6 to 71.2 mW/m{sup 2}, with a mean value of 66.1 mWE/m{sup 2}. In the south and southwest, it varies from 76.6 to 100.5 mW/m{sup 2}, with a mean value of 86.2 mW/m{sup 2}. High heat-flow values occur within the uplift of the crystalline basement in the southwest Sichuan, and the heat flow decreases from the south, through the central area, to the northwest.

  6. Vertical flow chemical detection portal

    DOE Patents [OSTI]

    Linker, K.L.; Hannum, D.W.; Conrad, F.J.

    1999-06-22

    A portal apparatus is described for screening objects or persons for the presence of trace amounts of chemical substances such as illicit drugs or explosives. The apparatus has a test space, in which a person may stand, defined by two generally upright sides spanned by a horizontal transom. One or more fans in the transom generate a downward air flow (uni-directional) within the test space. The air flows downwardly from a high pressure upper zone, past the object or person to be screened. Air moving past the object dislodges from the surface thereof both volatile and nonvolatile particles of the target substance. The particles are entrained into the air flow which continues flowing downward to a lower zone of reduced pressure, where the particle-bearing air stream is directed out of the test space and toward preconcentrator and detection components. The sides of the portal are specially configured to partially contain and maintain the air flow. 3 figs.

  7. Vertical flow chemical detection portal

    DOE Patents [OSTI]

    Linker, Kevin L.; Hannum, David W.; Conrad, Frank James

    1999-01-01

    A portal apparatus for screening objects or persons for the presence of trace amounts of chemical substances such as illicit drugs or explosives. The apparatus has a test space, in which a person may stand, defined by two generally upright sides spanned by a horizontal transom. One or more fans in the transom generate a downward air flow (uni-directional) within the test space. The air flows downwardly from a high pressure upper zone, past the object or person to be screened. Air moving past the object dislodges from the surface thereof both volatile and nonvolatile particles of the target substance. The particles are entrained into the air flow which continues flowing downward to a lower zone of reduced pressure, where the particle-bearing air stream is directed out of the test space and toward preconcentrator and detection components. The sides of the portal are specially configured to partially contain and maintain the air flow.

  8. Biofuel Production Initiative at Claflin University Final Report

    SciTech Connect (OSTI)

    Chowdhury, Kamal

    2011-07-20

    For US transportation fuel independence or reduced dependence on foreign oil, the Federal Government has mandated that the country produce 36 billion gallons (bg) of renewable transportation fuel per year for its transportation fuel supply by 2022. This can be achieved only if development of efficient technology for second generation biofuel from ligno-cellulosic sources is feasible. To be successful in this area, development of a widely available, renewable, cost-effective ligno-cellulosic biomass feedstock that can be easily and efficiently converted biochemically by bacteria or other fast-growing organisms is required. Moreover, if the biofuel type is butanol, then the existing infrastructure to deliver fuel to the customer can be used without additional costs and retrofits. The Claflin Biofuel Initiative project is focused on helping the US meet the above-mentioned targets. With support from this grant, Claflin University (CU) scientists have created over 50 new strains of microorganisms that are producing butanol from complex carbohydrates and cellulosic compounds. Laboratory analysis shows that a number of these strains are producing higher percentages of butanol than other methods currently in use. All of these recombinant bacterial strains are producing relatively high concentrations of acetone and numerous other byproducts as well. Therefore, we are carrying out intense mutations in the selected strains to reduce undesirable byproducts and increase the desired butanol production to further maximize the yield of butanol. We are testing the proof of concept of producing pre-industrial large scale biobutanol production by utilizing modifications of currently commercially available fermentation technology and instrumentation. We have already developed an initial process flow diagram (PFD) and selected a site for a biobutanol pilot scale facility in Orangeburg, SC. With the recent success in engineering new strains of various biofuel producing bacteria at CU, it will soon be possible to provide other technical information for the development of process flow diagrams (PFD’s) and piping and instrumentation diagrams (P&ID’s). This information can be used for the equipment layout and general arrangement drawings for the proposed process and eventual plant. An efficient bio-butanol pilot plant to convert ligno-cellulosic biomass feedstock from bagasse and wood chips will create significant number of green jobs for the Orangeburg, SC community that will be environmentally-friendly and generate much-needed income for farmers in the area.

  9. Brownfield to Brightfield Initiative in Oak Ridge, TN - 12346

    SciTech Connect (OSTI)

    Hough, Gil; Fairless, Chad

    2012-07-01

    Experience characterizing, permitting, and restoring 'Brownfield' sites-government or industrial sites with restricted future use due to the presence or potential presence of hazardous substances, pollutants, or contaminants-is being leveraged to identify opportunities for redevelopment into solar power generating facilities which, in this context, are called 'Brightfields'. Brownfield sites offer the expansive land necessary for large photovoltaic (PV) solar farms, but require an in-depth working knowledge of complicated regulatory restrictions and environmental constraints to develop them. As a part of the effort to identify opportunities for redevelopment of Brownfield sites for solar applications, a technical guide, was composed specifically for the development of solar generation on restricted use sites. The basis of the technical guide gives specific consideration to environmental requirements and installation methods breaking that into three areas for assessing: 1) levels of contamination, 2) ground penetration requirements, and 3) the requirements for aesthetics and maintenance. Brightfield projects are underway to support the technical guide and expand re-industrialization efforts for the former DOE Gaseous Diffusion Plant in Oak Ridge, TN. There are exciting opportunities to turn Brownfields into Brightfield solar energy solutions for meeting the future renewable energy needs of our country. Brownfields that offer the large surface area required for solar PV farms coupled with the technical guide for the installation of solar farms on restricted use sites supports efforts to develop the solar capacities and expertise to tap this future market. The initial projects designed following the technical guide will provide verification of the installation requirements and beneficial reuse of restricted use sites. (authors)

  10. Initial CTBT international monitoring system security findings and recommendations

    SciTech Connect (OSTI)

    Craft, R.L.; Draelos, T.J.

    1996-08-01

    An initial security evaluation of the proposed International Monitoring System (IMS) suggests safeguards at various points in the IMS to provide reliable information to the user community. Modeling the IMS as a network of information processing nodes provides a suitable architecture for assessing data surety needs of the system. The recommendations in this paper include the use of public-key authentication for data from monitoring stations and for commands issued to monitoring stations. Other monitoring station safeguards include tamper protection of sensor subsystems, preservation of data (i.e. short-term archival), and limiting the station`s network services. The recommendations for NDCs focus on the need to provide a backup to the IDC for data archival and data routing. Safeguards suggested for the IDC center on issues of reliability. The production of event bulletins should employ {open_quotes}two-man{close_quotes} procedures. As long as the data maintains its integrity, event bulletins can be produced by NDCs as well. The effective use of data authentication requires a sound key management system. Key management systems must be developed for the authentication of data, commands, and event bulletins if necessary. It is recommended that the trust placed in key management be distributed among multiple parties. The recommendations found in this paper offer safeguards for identified vulnerabilities in the IMS with regard to data surety. However, several outstanding security issues still exist. These issues include the need to formalize and obtain a consensus on a threat model and a trust model for the IMS. The final outstanding security issue that requires in-depth analysis concerns the IDC as a potential single point of failure in the current IMS design.

  11. Recurrent flow analysis in spatiotemporally chaotic 2-dimensional Kolmogorov flow

    SciTech Connect (OSTI)

    Lucas, Dan Kerswell, Rich R.

    2015-04-15

    Motivated by recent success in the dynamical systems approach to transitional flow, we study the efficiency and effectiveness of extracting simple invariant sets (recurrent flows) directly from chaotic/turbulent flows and the potential of these sets for providing predictions of certain statistics of the flow. Two-dimensional Kolmogorov flow (the 2D Navier-Stokes equations with a sinusoidal body force) is studied both over a square [0, 2?]{sup 2} torus and a rectangular torus extended in the forcing direction. In the former case, an order of magnitude more recurrent flows are found than previously [G. J. Chandler and R. R. Kerswell, Invariant recurrent solutions embedded in a turbulent two-dimensional Kolmogorov flow, J. Fluid Mech. 722, 554595 (2013)] and shown to give improved predictions for the dissipation and energy pdfs of the chaos via periodic orbit theory. Analysis of the recurrent flows shows that the energy is largely trapped in the smallest wavenumbers through a combination of the inverse cascade process and a feature of the advective nonlinearity in 2D. Over the extended torus at low forcing amplitudes, some extracted states mimic the statistics of the spatially localised chaos present surprisingly well recalling the findings of Kawahara and Kida [Periodic motion embedded in plane Couette turbulence: Regeneration cycle and burst, J. Fluid Mech. 449, 291 (2001)] in low-Reynolds-number plane Couette flow. At higher forcing amplitudes, however, success is limited highlighting the increased dimensionality of the chaos and the need for larger data sets. Algorithmic developments to improve the extraction procedure are discussed.

  12. Observed damage during Argon gas cluster depth profiles of compound semiconductors

    SciTech Connect (OSTI)

    Barlow, Anders J. Portoles, Jose F.; Cumpson, Peter J.

    2014-08-07

    Argon Gas Cluster Ion Beam (GCIB) sources have become very popular in XPS and SIMS in recent years, due to the minimal chemical damage they introduce in the depth-profiling of polymer and other organic materials. These GCIB sources are therefore particularly useful for depth-profiling polymer and organic materials, but also (though more slowly) the surfaces of inorganic materials such as semiconductors, due to the lower roughness expected in cluster ion sputtering compared to that introduced by monatomic ions. We have examined experimentally a set of five compound semiconductors, cadmium telluride (CdTe), gallium arsenide (GaAs), gallium phosphide (GaP), indium arsenide (InAs), and zinc selenide (ZnSe) and a high-? dielectric material, hafnium oxide (HfO), in their response to argon cluster profiling. An experimentally determined HfO etch rate of 0.025?nm/min (3.95??10{sup ?2}?amu/atom in ion) for 6?keV Ar gas clusters is used in the depth scale conversion for the profiles of the semiconductor materials. The assumption has been that, since the damage introduced into polymer materials is low, even though sputter yields are high, then there is little likelihood of damaging inorganic materials at all with cluster ions. This seems true in most cases; however, in this work, we report for the first time that this damage can in fact be very significant in the case of InAs, causing the formation of metallic indium that is readily visible even to the naked eye.

  13. Results of Hg speciation testing on tanks 30, 32, and 37 depth samples

    SciTech Connect (OSTI)

    Bannochie, C. J.

    2015-11-30

    The Savannah River National Laboratory (SRNL) was tasked with preparing and shipping samples for Hg speciation by Eurofins Frontier Global Sciences, Inc. in Seattle, WA on behalf of the Savannah River Remediation (SRR) Mercury Task Team. The twelfth shipment of samples was designated to include 3H evaporator system Tank 30, 32, and 37 depth samples. The Tank 30 depth sample (HTF-30-15-70) was taken at 190 inches from the tank bottom and the Tank 32 depth sample (HTF-32-15-68) was taken at 89 inches from the tank bottom and both were shipped to SRNL on June 29, 2015 in an 80 mL stainless steel dip bottles. The Tank 37 surface sample (HTF-37-15-94) was taken around 253.4 inches from the tank bottom and shipped to SRNL on July 21, 2015 in an 80 mL stainless steel dip bottle. All samples were placed in the SRNL Shielded Cells and left unopened until intermediate dilutions were made on July 24, 2015 using 1.00 mL of sample diluted to 100.00 mL with deionized H2O. A 30 mL Teflon® bottle was rinsed twice with the diluted tank sample and then filled leaving as little headspace as possible. It was immediately removed from the Shielded Cells and transferred to refrigerated storage where it remained at 4 °C until final dilutions were made on October 20. A second portion of the cells diluted tank sample was poured into a shielded polyethylene bottle and transferred to Analytical Development for radiochemical analysis data needed for Hazardous Material Transportation calculations.

  14. A microwave resonator for limiting depth sensitivity for electron paramagnetic resonance spectroscopy of surfaces

    SciTech Connect (OSTI)

    Sidabras, Jason W.; Varanasi, Shiv K.; Hyde, James S.; Mett, Richard R.; Swarts, Steven G.; Swartz, Harold M.

    2014-10-15

    A microwave Surface Resonator Array (SRA) structure is described for use in Electron Paramagnetic Resonance (EPR) spectroscopy. The SRA has a series of anti-parallel transmission line modes that provides a region of sensitivity equal to the cross-sectional area times its depth sensitivity, which is approximately half the distance between the transmission line centers. It is shown that the quarter-wave twin-lead transmission line can be a useful element for design of microwave resonators at frequencies as high as 10 GHz. The SRA geometry is presented as a novel resonator for use in surface spectroscopy where the region of interest is either surrounded by lossy material, or the spectroscopist wishes to minimize signal from surrounding materials. One such application is in vivo spectroscopy of human finger-nails at X-band (9.5 GHz) to measure ionizing radiation dosages. In order to reduce losses associated with tissues beneath the nail that yield no EPR signal, the SRA structure is designed to limit depth sensitivity to the thickness of the fingernail. Another application, due to the resonator geometry and limited depth penetration, is surface spectroscopy in coating or material science. To test this application, a spectrum of 1.44 ?M of Mg{sup 2+} doped polystyrene 1.1 mm thick on an aluminum surface is obtained. Modeling, design, and simulations were performed using Wolfram Mathematica (Champaign, IL; v. 9.0) and Ansys High Frequency Structure Simulator (HFSS; Canonsburg, PA; v. 15.0). A micro-strip coupling circuit is designed to suppress unwanted modes and provide a balanced impedance transformation to a 50 ? coaxial input. Agreement between simulated and experimental results is shown.

  15. Sunshot Initiative High Penetration Solar Portal

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

    The DOE SunShot Initiative is a collaborative national initiative to make solar energy cost-competitive with other forms of energy by the end of the decade. Reducing the installed cost of solar energy systems by about 75% will drive widespread large-scale adoption of this renewable energy and restore U.S. leadership in the global clean energy race. The High Penetration Solar Portal was created as a resource to aggregate the most relevant and timely information related to high penetration solar scenarios and integrating solar into the grid. The site is designed so that utilities, grant awardees, regulators, researchers, and other solar professionals can easily share data, case studies, lessons learned, and demonstration project findings. [from https://solarhighpen.energy.gov/about_the_high_penetration_solar_portal

  16. Damage detection in initially nonlinear systems

    SciTech Connect (OSTI)

    Bornn, Luke; Farrar, Charles; Park, Gyuhae

    2009-01-01

    The primary goal of Structural Health Monitoring (SHM) is to detect structural anomalies before they reach a critical level. Because of the potential life-safety and economic benefits, SHM has been widely studied over the past decade. In recent years there has been an effort to provide solid mathematical and physical underpinnings for these methods; however, most focus on systems that behave linearly in their undamaged state - a condition that often does not hold in complex 'real world' systems and systems for which monitoring begins mid-lifecycle. In this work, we highlight the inadequacy of linear-based methodology in handling initially nonlinear systems. We then show how the recently developed autoregressive support vector machine (AR-SVM) approach to time series modeling can be used for detecting damage in a system that exhibits initially nonlinear response. This process is applied to data acquired from a structure with induced nonlinearity tested in a laboratory environment.

  17. Initial Aging Studies of Unfilled VCE

    SciTech Connect (OSTI)

    Letant, S E; Herberg, J L; Wilson, T S; Alviso, C T; Chinn, S C; Maxwell, R S

    2008-10-09

    This report presents initial data on the effects of temperature, oxygen, and radiation on the chemical and structural properties of newly formulated, unfilled VCE. This initial effort focused on a pristine sample, and a replicate sample irradiated in air at a dose of 25MR. Thermal degradation was investigated by performing Thermogravimetric Analysis (TGA), and radiation-induced degradation was investigated using Differential Scanning Calorimetry (DSC), X-ray Diffraction (XRD), Solid Phase MicroExtraction--Gas Chromatography/Mass Spectrometry (SPME-GC/MS), as well as various Nuclear Magnetic Resonance (NMR) techniques including: {sup 13}C, {sup 13}C {sup 1}H cross polarization (CP), and {sup 1}H magic angle spinning (MAS) NMR.

  18. NERSC Initiative for Scientific Exploration (NISE) Awards

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

    Awards NERSC Initiative for Scientific Exploration (NISE) Awards June 3, 2011 by Francesca Verdier The June NISE awards have been added to the NISE Awards Table. Subscribe via RSS Subscribe Browse by Date May 2016 April 2016 January 2016 December 2015 November 2015 October 2015 September 2015 August 2015 July 2015 April 2015 March 2015 January 2015 December 2014 November 2014 October 2014 August 2014 June 2014 May 2014 April 2014 March 2014 January 2014 December 2013 November 2013 October 2013

  19. Wind Powering America Initiative (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-01-01

    The U.S. Department of Energy's Wind Powering America initiative engages in technology market acceptance, barrier reduction, and technology deployment support activities. This fact sheet outlines ways in which the Wind Powering America team works to reduce barriers to appropriate wind energy deployment, primarily by focusing on six program areas: workforce development, communications and outreach, stakeholder analysis and resource assessment, wind technology technical support, wind power for Native Americans, and federal sector support and collaboration.

  20. Quantum harmonic oscillator with superoscillating initial datum

    SciTech Connect (OSTI)

    Buniy, R. V.; Struppa, D. C.; Colombo, F.; Sabadini, I.

    2014-11-15

    In this paper, we study the evolution of superoscillating initial data for the quantum driven harmonic oscillator. Our main result shows that superoscillations are amplified by the harmonic potential and that the analytic solution develops a singularity in finite time. We also show that for a large class of solutions of the Schrödinger equation, superoscillating behavior at any given time implies superoscillating behavior at any other time.

  1. Clean Energy Manufacturing Initiative | Department of Energy

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

    Clean Energy Manufacturing Initiative AEMC Northeast Regional Summit AEMC Northeast Regional Summit On May 12, 2016, join Assistant Secretary Dr. Dave Danielson for an unforgettable dialogue on advances and obstacles in clean energy manufacturing in the northeast and across the nation. Read more Funding Opportunity: High-Performance Computing for Manufacturing Funding Opportunity: High-Performance Computing for Manufacturing The Energy Department announced up to $3 million in funding for

  2. National Laboratory Impact Initiative | Department of Energy

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

    National Laboratory Impact Initiative National Lab Impact Summit National Lab Impact Summit On May 4, 2016, EERE hosted a National Lab Impact Summit to celebrate recent National Laboratory successes and bring together the nation's public- and private-sector energy leaders to formulate the next stage of clean energy technology innovation. Read more Map of the United States showing locations of the National Laboratories for the Department of Energy Map of the United States showing locations of the

  3. New!LBNL'SLAC'FNAL!initiative:

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

    !!! New!LBNL'SLAC'FNAL!initiative: ! x J.'L.!Vay,!T.!Drummond,!A.!Koniges,!B.!Loring,! ! C.!Mitchell,!J.!Qiang,!O.!Ruebel,!R.!Ryne,!H.!Vincenti ! ! Lawrence!Berkeley!National!Laboratory,!CA,!USA ! ! D.!P.!Grote ! ! Lawrence!Livermore!National!Laboratory,!CA,!USA ! ! Axel!Hübl! ! ! Helmholtz'Zentrum!Dresden!Rossendorf!,!Germany ! Advanced!Modeling!of!Particle!Accelerators ! NERSC!Exascale!Science!Application!Program!meeting ! 12/04/2014 ! Accelerators*are*essen,al*tools*of*science*and*tech. *

  4. Atmosphere to Electrons Initiative Takes Shape

    Broader source: Energy.gov [DOE]

    Since DOE launched its Atmosphere to Electrons (A2e) Initiative last July, the A2e executive committee has been developing a comprehensive approach for working with multiple stakeholders (industry, national laboratories, international experts, and universities) over the next 5- to 7 years. In February, they held an external merit review to lay the groundwork for an A2e multi-year strategic research plan.

  5. Jefferson Lab Human Resources - Initial Lab Orientation

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

    first day 8:00 Arrive in Support Service Center (bldg 28) Lobby; met by Training Consultant 9:00 Initial Paperwork 10:00 JLab's Mission, Culture, Policies 11:00 Training begins SAF100 ES&H Orientation (30 min) GEN101Standards of Conduct (30 min) GEN034 Security Awareness (30 min) 12:00 Release for lunch 1:00 Benefits Orientation 2:00 Badges 3:00 Begin Windshield tour of Campus/Site

  6. Clean Energy Manufacturing Initiative Southeast Regional Summit

    Broader source: Energy.gov [DOE]

    As part of the Clean Energy Manufacturing Initiative (CEMI), the U.S. Department of Energy (DOE) organizes regional summits around the country to expand its partnerships, share resources and successes, and refine its strategy to boost U.S. competitiveness in clean energy manufacturing. The CEMI Southeast Regional Summit, which will be held on July 9, 2015 at the Renaissance Atlanta Midtown Hotel in Atlanta, Georgia, is the third in this series.

  7. Overvoltage protector using varistor initiated arc

    DOE Patents [OSTI]

    Brainard, John P.

    1982-01-01

    Coaxial conductors are protected against electrical overvoltage by at least one element of non-electroded varistor material that adjoins each other varistor element and conductor with which it contacts. With this construction, overvoltage current initiated through the varistor material arcs at the point contacts between varistor elements and, as the current increases, the arcs increase until they become a continuous arc between conductors, bypassing the varistor material.

  8. Apparatus for in-situ calibration of instruments that measure fluid depth

    DOE Patents [OSTI]

    Campbell, M.D.

    1994-01-11

    The present invention provides a method and apparatus for in-situ calibration of distance measuring equipment. The method comprises obtaining a first distance measurement in a first location, then obtaining at least one other distance measurement in at least one other location of a precisely known distance from the first location, and calculating a calibration constant. The method is applied specifically to calculating a calibration constant for obtaining fluid level and embodied in an apparatus using a pressure transducer and a spacer of precisely known length. The calibration constant is used to calculate the depth of a fluid from subsequent single pressure measurements at any submerged position. 8 figures.

  9. Evaluation of the Effective Moisture Penetration Depth Model for Estimating Moisture Buffering in Buildings

    SciTech Connect (OSTI)

    Woods, J.; Winkler, J.; Christensen, D.

    2013-01-01

    This study examines the effective moisture penetration depth (EMPD) model, and its suitability for building simulations. The EMPD model is a compromise between the simple, inaccurate effective capacitance approach and the complex, yet accurate, finite-difference approach. Two formulations of the EMPD model were examined, including the model used in the EnergyPlus building simulation software. An error in the EMPD model we uncovered was fixed with the release of EnergyPlus version 7.2, and the EMPD model in earlier versions of EnergyPlus should not be used.

  10. Apparatus for in-situ calibration of instruments that measure fluid depth

    DOE Patents [OSTI]

    Campbell, Melvin D.

    1994-01-01

    The present invention provides a method and apparatus for in-situ calibration of distance measuring equipment. The method comprises obtaining a first distance measurement in a first location, then obtaining at least one other distance measurement in at least one other location of a precisely known distance from the first location, and calculating a calibration constant. The method is applied specifically to calculating a calibration constant for obtaining fluid level and embodied in an apparatus using a pressure transducer and a spacer of precisely known length. The calibration constant is used to calculate the depth of a fluid from subsequent single pressure measurements at any submerged position.

  11. DOE/SC-ARM/TR-133 Aerosol Optical Depth Value-Added

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

    3 Aerosol Optical Depth Value-Added Product for the SAS-He Instrument B Ermold CJ Flynn J Barnard September 2013 Version 1.0 DISCLAIMER This report was prepared as an account of work sponsored by the U.S. Government. Neither the United States nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or

  12. Shock initiation sensitivity of hexanitrostilbene (HNS)

    SciTech Connect (OSTI)

    Schwarz, A C

    1981-01-01

    Experiments were conducted to study the influence of powder morphology, sample density, diameter of the impacting flyer and duration of the stimulus on the shock initiation sensitivity of the high explosive, hexanitrostilbene. The shock stimulus was provided by a polyimide flyer accelerated by an electrically-exploded, metallic foil. Impact pressure (P) was controlled between 3.8 and 9.8 GPa and pulse duration (tau) was nominally 0.035 ..mu..s except for the last experiment where pulse duration varied. Powder morphology significantly influenced the shock amplitude required for initiation with the finest-particle HNS requiring the least pressure, 6.3 GPa, and exhibiting the sharpest threshold. Both a reduction in density of HNS, from 1.60 to 1.30 Mg/m/sup 3/, and an increase in flyer diameter affected a reduction in impact velocity (or pressure) needed to induce detonation. The line which separates detontion from non-detonation is expressed by P/sup 2/ /sup 4/ tau = constant for tau between 0.01 and 0.10 ..mu..s; for longer pulses the initiation criterion becomes one of constant pressure.

  13. Initiation Pressure Thresholds from Three Sources

    SciTech Connect (OSTI)

    Souers, P C; Vitello, P

    2007-02-28

    Pressure thresholds are minimum pressures needed to start explosive initiation that ends in detonation. We obtain pressure thresholds from three sources. Run-to-detonation times are the poorest source but the fitting of a function gives rough results. Flyer-induced initiation gives the best results because the initial conditions are the best known. However, very thick flyers are needed to give the lowest, asymptotic pressure thresholds used in modern models and this kind of data is rarely available. Gap test data is in much larger supply but the various test sizes and materials are confusing. We find that explosive pressures are almost the same if the distance in the gap test spacers are in units of donor explosive radius. Calculated half-width time pulses in the spacers may be used to create a pressure-time curve similar to that of the flyers. The very-large Eglin gap tests give asymptotic thresholds comparable to extrapolated flyer results. The three sources are assembled into a much-expanded set of near-asymptotic pressure thresholds. These thresholds vary greatly with density: for TATB/LX-17/PBX 9502, we find values of 4.9 and 8.7 GPa at 1.80 and 1.90 g/cm{sup 3}, respectively.

  14. Turbine blade tip flow discouragers

    DOE Patents [OSTI]

    Bunker, Ronald Scott

    2000-01-01

    A turbine assembly comprises a plurality of rotating blade portions in a spaced relation with a stationery shroud. The rotating blade portions comprise a root section, a tip portion and an airfoil. The tip portion has a pressure side wall and a suction side wall. A number of flow discouragers are disposed on the blade tip portion. In one embodiment, the flow discouragers extend circumferentially from the pressure side wall to the suction side wall so as to be aligned generally parallel to the direction of rotation. In an alternative embodiment, the flow discouragers extend circumferentially from the pressure side wall to the suction side wall so as to be aligned at an angle in the range between about 0.degree. to about 60.degree. with respect to a reference axis aligned generally parallel to the direction of rotation. The flow discouragers increase the flow resistance and thus reduce the flow of hot gas flow leakage for a given pressure differential across the blade tip portion so as to improve overall turbine efficiency.

  15. Fluid Flow Phenomena during Welding

    SciTech Connect (OSTI)

    Zhang, Wei

    2011-01-01

    MOLTEN WELD POOLS are dynamic. Liquid in the weld pool in acted on by several strong forces, which can result in high-velocity fluid motion. Fluid flow velocities exceeding 1 m/s (3.3 ft/s) have been observed in gas tungsten arc (GTA) welds under ordinary welding conditions, and higher velocities have been measured in submerged arc welds. Fluid flow is important because it affects weld shape and is related to the formation of a variety of weld defects. Moving liquid transports heat and often dominates heat transport in the weld pool. Because heat transport by mass flow depends on the direction and speed of fluid motion, weld pool shape can differ dramatically from that predicted by conductive heat flow. Temperature gradients are also altered by fluid flow, which can affect weld microstructure. A number of defects in GTA welds have been attributed to fluid flow or changes in fluid flow, including lack of penetration, top bead roughness, humped beads, finger penetration, and undercutting. Instabilities in the liquid film around the keyhole in electron beam and laser welds are responsible for the uneven penetration (spiking) characteristic of these types of welds.

  16. Flow distribution channels to control flow in process channels

    DOE Patents [OSTI]

    Tonkovich, Anna Lee; Arora, Ravi; Kilanowski, David

    2014-10-28

    The invention describes features that can be used to control flow to an array of microchannels. The invention also describes methods in which a process stream is distributed to plural microchannels.

  17. Pressure and flow characteristics of restrictive flow orifice...

    Office of Scientific and Technical Information (OSTI)

    Technical Information Service, Springfield, VA at www.ntis.gov. A Restrictive Flow Orifice (RFO) can be used to enhance the safe design of a pressure system in several ways. ...

  18. GE funds initiative to support STEM initiatives in Oklahoma | GE Global

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

    Research STEM Empowers OK: Initiative to enrich STEM education in Oklahoma Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) STEM Empowers OK: Initiative to enrich STEM education in Oklahoma On April 21, 2015, GE announced a grant to the state of Oklahoma to enhance STEM education initiatives. Jeff Immelt, GE's

  19. Simulation of water flow in terrestrial systems

    Energy Science and Technology Software Center (OSTI)

    2008-12-18

    ParFlow is a parallel, variabley saturated groundwater flow code that is especially suitable for large scale problem. ParFlow simulates the three-dimensional saturated and variably saturated subsurface flow in heterogeneous porous media in three spatial dimensions. ParFlow's developemt and appkication has been on-ging for more than 10 uear. ParFlow has recently been extended to coupled surface-subsurface flow to enabel the simulation of hillslope runoff and channel routing in a truly integrated fashion. ParFlow simulates the three-dimensionalmore » varably saturated subsurface flow in strongly heterogeneous porous media in three spatial dimension.« less

  20. Wavy flow cooling concept for turbine airfoils

    DOE Patents [OSTI]

    Liang, George

    2010-08-31

    An airfoil including an outer wall and a cooling cavity formed therein. The cooling cavity includes a leading edge flow channel located adjacent a leading edge of the airfoil and a trailing edge flow channel located adjacent a trailing edge of the airfoil. Each of the leading edge and trailing edge flow channels define respective first and second flow axes located between pressure and suction sides of the airfoil. A plurality of rib members are located within each of the flow channels, spaced along the flow axes, and alternately extending from opposing sides of the flow channels to define undulating flow paths through the flow channels.

  1. Estuarine Response to River Flow and Sea-Level Rise under Future Climate Change and Human Development

    SciTech Connect (OSTI)

    Yang, Zhaoqing; Wang, Taiping; Voisin, Nathalie; Copping, Andrea E.

    2015-04-01

    Understanding the response of river flow and estuarine hydrodynamics to climate change, land-use/land-cover change (LULC), and sea-level rise is essential to managing water resources and stress on living organisms under these changing conditions. This paper presents a modeling study using a watershed hydrology model and an estuarine hydrodynamic model, in a one-way coupling, to investigate the estuarine hydrodynamic response to sea-level rise and change in river flow due to the effect of future climate and LULC changes in the Snohomish River estuary, Washington, USA. A set of hydrodynamic variables, including salinity intrusion points, average water depth, and salinity of the inundated area, were used to quantify the estuarine response to river flow and sea-level rise. Model results suggest that salinity intrusion points in the Snohomish River estuary and the average salinity of the inundated areas are a nonlinear function of river flow, although the average water depth in the inundated area is approximately linear with river flow. Future climate changes will shift salinity intrusion points further upstream under low flow conditions and further downstream under high flow conditions. In contrast, under the future LULC change scenario, the salinity intrusion point will shift downstream under both low and high flow conditions, compared to present conditions. The model results also suggest that the average water depth in the inundated areas increases linearly with sea-level rise but at a slower rate, and the average salinity in the inundated areas increases linearly with sea-level rise; however, the response of salinity intrusion points in the river to sea-level rise is strongly nonlinear.

  2. GrndWaterFlow.book

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

    0 8.3 Flow Model Sensitivity to Steady-State Temperature Distribution 8.3.1 Introduction The Pahute Mesa CAU flow model spans an area 50 by 53 km with elevations between 3.5 km bmsl to 1.5 km amsl. Within the domain, there are three volcanic caldera complexes and extensive extra-caldera zones as well. Temperatures are not the same everywhere in this model domain. In the flow model, spatial variations in temperature are set by specifying a steady-state, 3-D temperature distribution. The FEHM code

  3. GrndWaterFlow.book

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

    Groundwater Flow Model of CAUs 101 and 102: Central and Western Pahute Mesa, Nye County, Nevada Appendix A A-59 Table A.11-3 CPU Times in Minutes for FEHM Test Problem Simulations Model Faults Radionuclides Source Location Matrix Diffusion Simulation Time (Yrs) CPU Time (min) Flow No - - - - 19 Flow Yes - - - - 15 F-E Transport No Tritium SCOTCH/SERENA* No 200 71 F-E Transport No Tritium SCOTCH CHVTA** No 200 82 F-E Transport Yes Tritium SCOTCH/SERENA No 200 77 F-E Transport Yes Tritium SCOTCH

  4. Defense-in-Depth, How Department of Energy Implements Radiation Protection in Low Level Waste Disposal

    Broader source: Energy.gov [DOE]

    Defense-in-Depth, How Department of Energy Implements Radiation Protection in Low Level Waste Disposal Linda Suttora*, U.S. Department of Energy ; Andrew Wallo, U.S. Department of Energy Abstract: The United States Department of Energy (DOE) has adopted an integrated protection system for the safety of radioactive waste disposal similar to the concept of a safety case that is used internationally. This approach has evolved and been continuously improved as a result of many years of experience managing low-level waste (LLW) and mixed LLW from on-going operations, decommissioning and environmental restoration activities at 29 sites around the United States. The integrated protection system is implemented using a defense-in-depth approach taking into account the combination of natural and engineered barriers, performance objectives, long-term risk assessments, maintenance of those assessments based on the most recent information to ascertain continued compliance, site-specific waste acceptance criteria based on the risk assessment and a commitment to continuous improvement. There is also a strong component of stakeholder involvement. The integrated protection system approach will be discussed to demonstrate the commitment to safety for US DOE disposal.

  5. An in-depth longitudinal analysis of mixing patterns in a small scientific collaboration network

    SciTech Connect (OSTI)

    Rodriguez, Marko A [Los Alamos National Laboratory; Pepe, Alberto [UCLA

    2009-01-01

    Many investigations of scientific collaboration are based on large-scale statistical analyses of networks constructed from bibliographic repositories. These investigations often rely on a wealth of bibliographic data, but very little or no other information about the individuals in the network, and thus, fail to illustate the broader social and academic landscape in which collaboration takes place. In this article, we perform an in-depth longitudinal analysis of a small-scale network of scientific collaboration (N = 291) constructed from the bibliographic record of a research center involved in the development and application of sensor network technologies. We perform a preliminary analysis of selected structural properties of the network, computing its range, configuration and topology. We then support our preliminary statistical analysis with an in-depth temporal investigation of the assortativity mixing of these node characteristics: academic department, affiliation, position, and country of origin of the individuals in the network. Our qualitative analysis of mixing patterns offers clues as to the nature of the scientific community being modeled in relation to its organizational, disciplinary, institutional, and international arrangements of collaboration.

  6. Device and method for the measurement of depth of interaction using co-planar electrodes

    DOE Patents [OSTI]

    DeGeronimo, Gianluigi

    2007-09-18

    A device and method for measuring a depth of interaction of an ionizing event and improving resolution of a co-planar grid sensor (CPG) are provided. A time-of-occurrence is measured using a comparator to time the leading edge of the event pulse from the non-collecting or collecting grid. A difference signal between the grid signals obtained with a differential amplifier includes a pulse with a leading edge occurring at the time-of-detection, measured with another comparator. A timing difference between comparator outputs corresponds to the depth of interaction, calculated using a processor, which in turn weights the difference grid signal to improve spectral resolution of a CPG sensor. The device, which includes channels for grid inputs, may be integrated into an Application Specific Integrated Circuit. The combination of the device and sensor is included. An improved high-resolution CPG is provided, e.g., a gamma-ray Cadmium Zinc Telluride CPG sensor operating at room temperature.

  7. Energy Data Initiative (EDI) | OpenEI Community

    Open Energy Info (EERE)

    Energy Data Initiative (EDI) Home > Energy Data Initiative (EDI) > Posts by term > Energy Data Initiative (EDI) Content Group Activity By term Q & A Feeds Term: EDI Type Term Title...

  8. Energy Data Initiative (EDI) | OpenEI Community

    Open Energy Info (EERE)

    Energy Data Initiative (EDI) Home > Energy Data Initiative (EDI) > Posts by term > Energy Data Initiative (EDI) Content Group Activity By term Q & A Feeds Term: Open Data Type Term...

  9. Energy Data Initiative (EDI) | OpenEI Community

    Open Energy Info (EERE)

    Data Initiative (EDI) Home > Energy Data Initiative (EDI) > Posts by term > Energy Data Initiative (EDI) Content Group Activity By term Q & A Feeds Term: Map Type Term Title Author...

  10. Energy Data Initiative (EDI) | OpenEI Community

    Open Energy Info (EERE)

    Energy Data Initiative (EDI) Home > Energy Data Initiative (EDI) > Posts by term > Energy Data Initiative (EDI) Content Group Activity By term Q & A Feeds Term: load data Type Term...

  11. EERE - Energy Data Initiative | OpenEI Community

    Open Energy Info (EERE)

    EERE - Energy Data Initiative Home > EERE - Energy Data Initiative > Posts by term > EERE - Energy Data Initiative Content Group Activity By term Q & A Feeds Term: OpenEI Type Term...

  12. Motion to Intervene and Initial Comments of PJM Interconnection...

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

    Initial Comments of PJM Interconnection, L.L.C. Motion to Intervene and Initial Comments of PJM Interconnection, L.L.C. Motion to Intervene and Initial Comments of PJM ...

  13. Innovative Manufacturing Initiatives Recognition Day Agenda | Department of

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

    Energy Initiatives Recognition Day Agenda Innovative Manufacturing Initiatives Recognition Day Agenda PDF icon imi_recogitionday_agenda.pdf More Documents & Publications Innovative Manufacturing Initiative Recognition Day Manufacturing Demonstration Facilities Workshop Agenda, March 2012 Critical Materials Workshop Agenda

  14. SunShot Initiative Installs Solar Energy System | Department...

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

    SunShot Initiative Installs Solar Energy System SunShot Initiative Installs Solar Energy System Addthis 1 of 10 SunShot Initiative team members install a solar energy system on a ...

  15. 2009 Annual Reports Issued for Nuclear Energy Research Initiative and International Nuclear Energy Research Initiative

    Broader source: Energy.gov [DOE]

    On July 2, 2010, the Department of Energy’s (DOE) Office of Nuclear Energy (NE) issued annual reports for its Nuclear Energy Research Initiative (NERI) andInternational Nuclear Energy Research...

  16. Migration depths of adult steelhead Oncorhynchus mykiss in relation to dissolved gas supersaturation in a regulated river system

    SciTech Connect (OSTI)

    Johnson, Eric L.; Clabough, Tami S.; Caudill, Christopher C.; keefer, matthew L.; Peery, Christopher A.; Richmond, Marshall C.

    2010-04-01

    Adult steelhead tagged with archival transmitters primarily migrated through a large river corridor at depths > 2 m, interspersed with frequent but short (< 5 min) periods closer to the surface. The recorded swimming depths and behaviours probably provided adequate hydrostatic compensation for the encountered supersaturated dissolved gas conditions and probably limited development of gas bubble disease (GBD). Results parallel those from a concurrent adult Chinook salmon study, except steelhead experienced greater seasonal variability and were more likely to have depth-uncompensated supersaturation exposure in some dam tailraces, perhaps explaining the higher incidence of GBD in this species.

  17. Developing a subsea multiphase-flow pumping system

    SciTech Connect (OSTI)

    1997-08-01

    Since 1995, Petrobras and Westinghouse have been working on a development effort that has resulted in a technological cooperation agreement between the companies and, more importantly, the development of a conceptual design for a subsea multiphase-flow pumping system. SBMS-500 [500-m{sup 3}/hr total flow rate, up to 6,000 KPa of pressure increase, up to 95% gas-void fraction (GVF) at the suction, and approximately 1.2 MW of power on the shaft], adequate for deepwater guidelineless operations. In 1992, having discovered fields in water depths greater than the original 1,000-m limit. Petrobras created a new program named Procap-2000 (technological-innovation program for deepwater exploitation systems). Among the innovative technological endeavors that Procap comprises are the boosting projects, namely the electrical submersible downhole pump in subsea wells; a subsea liquid-separation system; and a subsea multiphase-flow pumping system (SMFPS). Major characteristics and plans for field testing are described.

  18. Update on Washington initiatives on ecosystem management

    SciTech Connect (OSTI)

    Kostka, D.

    1995-12-01

    A biological {open_quotes}revolution{close_quotes} is in progress. Due to initiatives of the Clinton-Gore administration, biologists across the nation are trying to define and use a new concept called ecosystem management. {open_quotes}Ecosystem management{close_quotes} was born in the frustration of trying to deal with the spotted owl controversy in the Northwest. Biologists could not agree on what should be done. And the biologists and economists rarely got together to try to solve problems. Some astute individuals realized that to achieve a sustainable development, ecosystems would have to be managed on a much larger scale than merely small plots of lands. And people from many different backgrounds and disciplines would need to come together to find solutions. This paper will present the views of a Washington insider who has been a player (although too frequently a minor league player!) in administration initiatives to infuse ecosystem management principles and practices in our national conscience. Today, federal agency staff talk to those in other offices within their own agency. Federal agency staff also work on joint projects across federal agencies. In addition, state government, nonprofits, universities, interested individuals, and tribal governments are becoming involved. This is the biological {open_quotes}revolution{close_quotes} that is in progress. The emphasis is shifting from looking at the life history and problems of single species to a much broader approach of examining many species, including humans. The author will present a report on results of the ecosystem management initiative in the last year and point out some of the hurdles still ahead.

  19. 2007 Estimated International Energy Flows

    SciTech Connect (OSTI)

    Smith, C A; Belles, R D; Simon, A J

    2011-03-10

    An energy flow chart or 'atlas' for 136 countries has been constructed from data maintained by the International Energy Agency (IEA) and estimates of energy use patterns for the year 2007. Approximately 490 exajoules (460 quadrillion BTU) of primary energy are used in aggregate by these countries each year. While the basic structure of the energy system is consistent from country to country, patterns of resource use and consumption vary. Energy can be visualized as it flows from resources (i.e. coal, petroleum, natural gas) through transformations such as electricity generation to end uses (i.e. residential, commercial, industrial, transportation). These flow patterns are visualized in this atlas of 136 country-level energy flow charts.

  20. Miniaturized flow injection analysis system

    DOE Patents [OSTI]

    Folta, James A. (Livermore, CA)

    1997-01-01

    A chemical analysis technique known as flow injection analysis, wherein small quantities of chemical reagents and sample are intermixed and reacted within a capillary flow system and the reaction products are detected optically, electrochemically, or by other means. A highly miniaturized version of a flow injection analysis system has been fabricated utilizing microfabrication techniques common to the microelectronics industry. The microflow system uses flow capillaries formed by etching microchannels in a silicon or glass wafer followed by bonding to another wafer, commercially available microvalves bonded directly to the microflow channels, and an optical absorption detector cell formed near the capillary outlet, with light being both delivered and collected with fiber optics. The microflow system is designed mainly for analysis of liquids and currently measures 38.times.25.times.3 mm, but can be designed for gas analysis and be substantially smaller in construction.