National Library of Energy BETA

Sample records for 10kmx10km global horizontal

  1. Global horizontal irradiance clear sky models : implementation and analysis.

    SciTech Connect (OSTI)

    Stein, Joshua S.; Hansen, Clifford W.; Reno, Matthew J.

    2012-03-01

    Clear sky models estimate the terrestrial solar radiation under a cloudless sky as a function of the solar elevation angle, site altitude, aerosol concentration, water vapor, and various atmospheric conditions. This report provides an overview of a number of global horizontal irradiance (GHI) clear sky models from very simple to complex. Validation of clear-sky models requires comparison of model results to measured irradiance during clear-sky periods. To facilitate validation, we present a new algorithm for automatically identifying clear-sky periods in a time series of GHI measurements. We evaluate the performance of selected clear-sky models using measured data from 30 different sites, totaling about 300 site-years of data. We analyze the variation of these errors across time and location. In terms of error averaged over all locations and times, we found that complex models that correctly account for all the atmospheric parameters are slightly more accurate than other models, but, primarily at low elevations, comparable accuracy can be obtained from some simpler models. However, simpler models often exhibit errors that vary with time of day and season, whereas the errors for complex models vary less over time.

  2. Global and nonglobal parameters of horizontal-branch morphology of globular clusters

    SciTech Connect (OSTI)

    Milone, A. P.; Marino, A. F.; Dotter, A.; Norris, J. E.; Jerjen, H.; Asplund, M. E-mail: amarino@mso.anu.edu.au E-mail: jerjen@mso.anu.edu.au; and others

    2014-04-10

    The horizontal-branch (HB) morphology of globular clusters (GCs) is mainly determined by metallicity. However, the fact that GCs with almost the same metallicity exhibit different HB morphologies demonstrates that at least one more parameter is needed to explain the HB morphology. It has been suggested that one of these should be a global parameter that varies from GC to GC and the other a nonglobal parameter that varies within the GC. In this study we provide empirical evidence corroborating this idea. We used the photometric catalogs obtained with the Advanced Camera for Surveys of the Hubble Space Telescope and analyze the color-magnitude diagrams of 74 GCs. The HB morphology of our sample of GCs has been investigated on the basis of the two new parameters L1 and L2 that measure the distance between the red giant branch and the coolest part of the HB and the color extension of the HB, respectively. We find that L1 correlates with both metallicity and age, whereas L2 most strongly correlates with the mass of the hosting GC. The range of helium abundance among the stars in a GC, characterized by ΔY and associated with the presence of multiple stellar populations, has been estimated in a few GCs to date. In these GCs we find a close relationship among ΔY, GC mass, and L2. We conclude that age and metallicity are the main global parameters, while the range of helium abundance within a GC is the main nonglobal parameter defining the HB morphology of Galactic GCs.

  3. Evaluation of global horizontal irradiance to plane-of-array irradiance models at locations across the United States

    SciTech Connect (OSTI)

    Lave, Matthew; Hayes, William; Pohl, Andrew; Hansen, Clifford W.

    2015-02-02

    We report an evaluation of the accuracy of combinations of models that estimate plane-of-array (POA) irradiance from measured global horizontal irradiance (GHI). This estimation involves two steps: 1) decomposition of GHI into direct and diffuse horizontal components and 2) transposition of direct and diffuse horizontal irradiance (DHI) to POA irradiance. Measured GHI and coincident measured POA irradiance from a variety of climates within the United States were used to evaluate combinations of decomposition and transposition models. A few locations also had DHI measurements, allowing for decoupled analysis of either the decomposition or the transposition models alone. Results suggest that decomposition models had mean bias differences (modeled versus measured) that vary with climate. Transposition model mean bias differences depended more on the model than the location. Lastly, when only GHI measurements were available and combinations of decomposition and transposition models were considered, the smallest mean bias differences were typically found for combinations which included the Hay/Davies transposition model.

  4. Evaluation of global horizontal irradiance to plane-of-array irradiance models at locations across the United States

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

    Lave, Matthew; Hayes, William; Pohl, Andrew; Hansen, Clifford W.

    2015-02-02

    We report an evaluation of the accuracy of combinations of models that estimate plane-of-array (POA) irradiance from measured global horizontal irradiance (GHI). This estimation involves two steps: 1) decomposition of GHI into direct and diffuse horizontal components and 2) transposition of direct and diffuse horizontal irradiance (DHI) to POA irradiance. Measured GHI and coincident measured POA irradiance from a variety of climates within the United States were used to evaluate combinations of decomposition and transposition models. A few locations also had DHI measurements, allowing for decoupled analysis of either the decomposition or the transposition models alone. Results suggest that decompositionmore » models had mean bias differences (modeled versus measured) that vary with climate. Transposition model mean bias differences depended more on the model than the location. Lastly, when only GHI measurements were available and combinations of decomposition and transposition models were considered, the smallest mean bias differences were typically found for combinations which included the Hay/Davies transposition model.« less

  5. Response of precipitation extremes to idealized global warming in an aqua-planet climate model: Towards robust projection across different horizontal resolutions

    SciTech Connect (OSTI)

    Li, F.; Collins, W.D.; Wehner, M.F.; Williamson, D.L.; Olson, J.G.

    2011-04-15

    Current climate models produce quite heterogeneous projections for the responses of precipitation extremes to future climate change. To help understand the range of projections from multimodel ensembles, a series of idealized 'aquaplanet' Atmospheric General Circulation Model (AGCM) runs have been performed with the Community Atmosphere Model CAM3. These runs have been analysed to identify the effects of horizontal resolution on precipitation extreme projections under two simple global warming scenarios. We adopt the aquaplanet framework for our simulations to remove any sensitivity to the spatial resolution of external inputs and to focus on the roles of model physics and dynamics. Results show that a uniform increase of sea surface temperature (SST) and an increase of low-to-high latitude SST gradient both lead to increase of precipitation and precipitation extremes for most latitudes. The perturbed SSTs generally have stronger impacts on precipitation extremes than on mean precipitation. Horizontal model resolution strongly affects the global warming signals in the extreme precipitation in tropical and subtropical regions but not in high latitude regions. This study illustrates that the effects of horizontal resolution have to be taken into account to develop more robust projections of precipitation extremes.

  6. ARM - Measurement - Horizontal wind

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

    wind ARM Data Discovery Browse Data Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Horizontal wind The horizontal ...

  7. Horizontal Plate Plate

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

    Unknown Title: Horizontal Plate Plate GeospatialDataPresentationForm: vector digital data OnlineLinkage:

  8. Global

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

    Permalink EC, DHS's S&T Directorate, Federal Emergency Management Agency: SUMMIT Analysis, Capabilities, Facilities, Global, Infrastructure Security, Modeling, Modeling & Analysis, NISAC, Partnership, Research & Capabilities EC, DHS's S&T Directorate, Federal Emergency Management Agency: SUMMIT Natural disasters create emergency situations that must be dealt with quickly and effectively in order to minimize injury and loss of life. Simulating such events before they occur can

  9. Global

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

    Global axisymmetric simulations of two-fluid reconnection in an experimentally relevant geometry N. A. Murphy 1,2,a͒ and C. R. Sovinec 2,3 1 Department of Astronomy, University of Wisconsin, Madison, Wisconsin 53706, USA 2 Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas, University of Wisconsin, Madison, Wisconsin 53706, USA 3 Department of Engineering Physics, University of Wisconsin, Madison, Wisconsin 53706, USA ͑Received 18 January 2008; accepted 12 March

  10. Horizontal Advanced Tensiometer

    DOE Patents [OSTI]

    Hubbell, Joel M.; Sisson, James B.

    2004-06-22

    An horizontal advanced tensiometer is described that allows the monitoring of the water pressure of soil positions, particularly beneath objects or materials that inhibit the use of previous monitoring wells. The tensiometer includes a porous cup, a pressure transducer (with an attached gasket device), an adaptive chamber, at least one outer guide tube which allows access to the desired horizontal position, a transducer wire, a data logger and preferably an inner guide tube and a specialized joint which provides pressure on the inner guide tube to maintain the seal between the gasket of the transducer and the adaptive chamber.

  11. Horizontal baffle for nuclear reactors

    DOE Patents [OSTI]

    Rylatt, John A. (Monroeville, PA)

    1978-01-01

    A horizontal baffle disposed in the annulus defined between the core barrel and the thermal liner of a nuclear reactor thereby physically separating the outlet region of the core from the annular area below the horizontal baffle. The horizontal baffle prevents hot coolant that has passed through the reactor core from thermally damaging apparatus located in the annulus below the horizontal baffle by utilizing the thermally induced bowing of the horizontal baffle to enhance sealing while accommodating lateral motion of the baffle base plate.

  12. Nuclear component horizontal seismic restraint

    DOE Patents [OSTI]

    Snyder, Glenn J.

    1988-01-01

    A nuclear component horizontal seismic restraint. Small gaps limit horizontal displacement of components during a seismic occurrence and therefore reduce dynamic loadings on the free lower end. The reactor vessel and reactor guard vessel use thicker section roll-forged rings welded between the vessel straight shell sections and the bottom hemispherical head sections. The inside of the reactor guard vessel ring forging contains local vertical dovetail slots and upper ledge pockets to mount and retain field fitted and installed blocks. As an option, the horizontal displacement of the reactor vessel core support cone can be limited by including shop fitted/installed local blocks in opposing alignment with the reactor vessel forged ring. Beams embedded in the wall of the reactor building protrude into apertures in the thermal insulation shell adjacent the reactor guard vessel ring and have motion limit blocks attached thereto to provide to a predetermined clearance between the blocks and reactor guard vessel ring.

  13. Industry survey for horizontal wells. Final report

    SciTech Connect (OSTI)

    Wilson, D.D.; Kaback, D.S. [CDM Federal Programs Corp., Denver, CO (United States); Denhan, M.E. [Westinghouse Savannah River Co., Aiken, SC (United States); Watkins, D. [CDM Federal Programs Corp., Aiken, SC (United States)

    1993-07-01

    An international survey of horizontal environmental wells was performed during May and June of 1993. The purpose of the survey was to provide the environmental industry with an inventory of horizontal environmental wells and information pertaining to the extent of the use of horizontal environmental wells, the variety of horizontal environmental well applications, the types of geologic and hydrogeologic conditions within which horizontal environmental wells have been installed, and the companies that perform horizontal environmental well installations. Other information, such as the cost of horizontal environmental well installations and the results of tests performed on the wells, is not complete but is provided as general information with the caveat that the information should not be used to compare drilling companies. The result of the survey is a catalogue of horizontal environmental wells that are categorized by the objective or use of the wells, the vertical depth of the wells, and the drilling company contracted to install the wells.

  14. Horizontal drilling improves recovery in Abu Dhabi

    SciTech Connect (OSTI)

    Muhairy, A.A. ); Farid, E.A. )

    1993-09-13

    Both onshore and offshore Abu Dhabi, horizontal wells have increased productivity three to four times more than that from vertical and deviated wells in the same reservoirs. Horizontal drilling technology was first applied in Abu Dhabi in February 1988, and through March 1993, 48 wells have been horizontally drilled. During the 5 years of horizontal drilling, the experience gained by both operating company and service company personnel has contributed to a substantial improvement in drilling rate, and hence, a reduction in drilling costs. The improvements in drilling and completions resulted from the following: The horizontal drilling and completion operations were analyzed daily, and these follow-up analyses helped optimize the planning of subsequent wells. The bits and bottom hole assemblies were continuously analyzed for optimum selections. Steerable drilling assemblies were found very effective in the upper sections of the wells. The paper describes drilling activities onshore and offshore, completion design, and the outlook for future well drilling.

  15. Consorcio Horizonte Asja | Open Energy Information

    Open Energy Info (EERE)

    to: navigation, search Name: Consorcio Horizonte Asja Place: Brazil Product: Brazil-based joint venture between two subsidiaries of Asja.biz developing a 4.5MW biogas plant....

  16. Successful horizontal completions require an integrated approach

    SciTech Connect (OSTI)

    Richard, B.; Smejkal, K.; Penberthy, W. Jr.

    1997-01-01

    While a perfect well completion may not exist, depleting a hydrocarbon resource at a sustained high rate--without a workover--is the ultimate goal. Unfortunately, many horizontal well completions fail to achieve this due to wellbore damage or loss of reservoir pressure. These conditions manifest themselves in reduced production rates, extended well life and reduced profitability. Standard completion techniques are not always compatible with each other for site specific well applications. The combination of two incompatible technologies or slight changes in a completion procedure may negatively impact productivity. Hence, the most successful horizontal completion results are obtained using a compatible integrated system approach--an approach that carefully combines the best completion tools and processes to deliver an undamaged well completed at the lowest possible cost. After studying the compatibilities of various drill-in fluids, screens, filter cakes and gravel packs, recommended procedures are presented for successfully completing horizontal wells.

  17. Horizontal modular dry irradiated fuel storage system

    DOE Patents [OSTI]

    Fischer, Larry E.; McInnes, Ian D.; Massey, John V.

    1988-01-01

    A horizontal, modular, dry, irradiated fuel storage system (10) includes a thin-walled canister (12) for containing irradiated fuel assemblies (20), which canister (12) can be positioned in a transfer cask (14) and transported in a horizontal manner from a fuel storage pool (18), to an intermediate-term storage facility. The storage system (10) includes a plurality of dry storage modules (26) which accept the canister (12) from the transfer cask (14) and provide for appropriate shielding about the canister (12). Each module (26) also provides for air cooling of the canister (12) to remove the decay heat of the irradiated fuel assemblies (20). The modules (26) can be interlocked so that each module (26) gains additional shielding from the next adjacent module (26). Hydraulic rams (30) are provided for inserting and removing the canisters (12) from the modules (26).

  18. Waterflooding in a system of horizontal wells

    SciTech Connect (OSTI)

    Bedrikovetsky, P.G.; Magarshak, T.O.; Shapiro, A.A.

    1995-10-01

    An approximate analytical method for the simulation of waterflooding in a system of horizontal wells is developed. The method is based on an advanced stream-line concept. The essence of this new method is the exact solution for the 3D two-phase flow problem in the system of coordinates linked with the stream lines under the only assumption of the immobility of stream lines. A software based on this approach was developed for IBM-compatible PC. It allows one multivariant comparative studies of immiscible displacement in systems of horizontal, vertical and slant wells. The simulator has been used in order to optimize geometrical parameters of a regular well system and to predict recovery in conditions of Prirazlomnoye offshore oil field.

  19. Horizontal subsea trees allow frequent deepwater workovers

    SciTech Connect (OSTI)

    Krenek, M.; Hall, G.; Sheng, W.Z.

    1995-05-01

    Horizontal subsea wellheads have found application in the Liuhua oil field in the South China Sea. These trees allow installation and retrieval of downhole equipment through the tree without having to disturb the tree or its external connections to flow lines, service lines, or control umbilicals. This access to the well is important because the Liuhua wells will be produced with electrical submersible pumps (ESPs), which may have relatively short intervals between maintenance, leading to frequent well work. The wells will be completed subsea in about 300 m of water. The large bore, horizontal trees allow all downhole equipment to be pulled without removal of the subsea tree. This wellhead configuration also provides well control and vertical access to downhole equipment through a conventional marine drilling riser and subsea blowout preventer (BOP), eliminating the need for costly specialized completion risers. Another benefit of the horizontal tree is its extremely compact profile with a low number of valves for well control. Valve size and spacing are decoupled from the size and bore spacing of the tubing hanger. The tree`s low profile geometry reduces costs of manufacturing the tree and framework and optimize load transfer to the wellhead.

  20. Sidewall containment of liquid metal with horizontal alternating magnetic fields

    DOE Patents [OSTI]

    Pareg, Walter F.

    1990-01-01

    An apparatus for confining molten metal with a horizontal alternating magnetic field. In particular, this invention employs a magnet that can produce a horizontal alternating magnetic field to confine a molten metal at the edges of parallel horizontal rollers as a solid metal sheet is cast by counter-rotation of the rollers.

  1. Sidewall containment of liquid metal with horizontal alternating magnetic fields

    DOE Patents [OSTI]

    Praeg, Walter F.

    1995-01-01

    An apparatus for confining molten metal with a horizontal alternating magnetic field. In particular, this invention employs a magnet that can produce a horizontal alternating magnetic field to confine a molten metal at the edges of parallel horizontal rollers as a solid metal sheet is cast by counter-rotation of the rollers.

  2. YPF uses horizontal reentry to aid thin bed production

    SciTech Connect (OSTI)

    Acosta, M.R.; Leiro, F.A.; Sesano, G.S.; Hill, D.

    1997-01-01

    Reentry and horizontal drilling/completion techniques have proven themselves useful in exploiting thin beds. A pilot horizontal reentry contracted by Yacimiento Petroliferos Fiscales (YPF) for a marginal well in its Lomita Sur field resulted in decreased water coning and production rates four times greater than expected. Further horizontal reentries in this thin-bed field are planned.

  3. Sidewall containment of liquid metal with horizontal alternating magnetic fields

    DOE Patents [OSTI]

    Praeg, W.F.

    1995-01-31

    An apparatus is disclosed for confining molten metal with a horizontal alternating magnetic field. In particular, this invention employs a magnet that can produce a horizontal alternating magnetic field to confine a molten metal at the edges of parallel horizontal rollers as a solid metal sheet is cast by counter-rotation of the rollers. 19 figs.

  4. Planning and well evaluations improve horizontal drilling results

    SciTech Connect (OSTI)

    Hovda, S. )

    1994-10-31

    A systematic approach, including better planning and performance evaluation, improved the horizontal drilling efficiency of a multiwell program in the Oseberg field in the North Sea. The horizontal drilling program in the Oseberg field is one of the most comprehensive horizontal drilling programs in the North Sea. The present horizontal drilling program consists of 14 oil producers from the C platform and 18 from the B platform. Total horizontal displacement varies from around 1,500 m to 5,540 m. The lengths of the horizontal section vary from 600 m to 1,500 m. The paper discusses will planning, directional drilling, drilling problems with coal seams and orientation, true vertical depth control, horizontal liner cement, spacer system, cement slurries, job execution, and results.

  5. Hurricanes in an Aquaplanet World: Implications of the Impacts of External Forcing and Model Horizontal Resolution

    SciTech Connect (OSTI)

    Li, Fuyu; Collins, William D.; Wehner, Michael F.; Leung, Lai-Yung R.

    2013-06-02

    High-resolution climate models have been shown to improve the statistics of tropical storms and hurricanes compared to low-resolution models. The impact of increasing horizontal resolution in the tropical storm simulation is investigated exclusively using a series of Atmospheric Global Climate Model (AGCM) runs with idealized aquaplanet steady-state boundary conditions and a fixed operational storm-tracking algorithm. The results show that increasing horizontal resolution helps to detect more hurricanes, simulate stronger extreme rainfall, and emulate better storm structures in the models. However, increasing model resolution does not necessarily produce stronger hurricanes in terms of maximum wind speed, minimum sea level pressure, and mean precipitation, as the increased number of storms simulated by high-resolution models is mainly associated with weaker storms. The spatial scale at which the analyses are conducted appears to have more important control on these meteorological statistics compared to horizontal resolution of the model grid. When the simulations are analyzed on common low-resolution grids, the statistics of the hurricanes, particularly the hurricane counts, show reduced sensitivity to the horizontal grid resolution and signs of scale invariant.

  6. Passive magnetic bearing for a horizontal shaft

    DOE Patents [OSTI]

    Post, Richard F.

    2003-12-02

    A passive magnetic bearing is composed of a levitation element and a restorative element. The levitation element is composed of a pair of stationary arcuate ferromagnetic segments located within an annular radial-field magnet array. The magnet array is attached to the inner circumference of a hollow shaft end. An attractive force between the arcuate segments and the magnet array acts vertically to levitate the shaft, and also in a horizontal transverse direction to center the shaft. The restorative element is comprised of an annular Halbach array of magnets and a stationary annular circuit array located within the Halbach array. The Halbach array is attached to the inner circumference of the hollow shaft end. A repulsive force between the Halbach array and the circuit array increases inversely to the radial space between them, and thus acts to restore the shaft to its equilibrium axis of rotation when it is displaced therefrom.

  7. Measurement and modeling of solar irradiance components on horizontal and tilted planes

    SciTech Connect (OSTI)

    Padovan, Andrea; Col, Davide del

    2010-12-15

    In this work new measurements of global and diffuse solar irradiance on the horizontal plane and global irradiance on planes tilted at 20 and 30 oriented due South and at 45 and 65 oriented due East are used to discuss the modeling of solar radiation. Irradiance data are collected in Padova (45.4 N, 11.9 E, 12 m above sea level), Italy. Some diffuse fraction correlations have been selected to model the hourly diffuse radiation on the horizontal plane. The comparison with the present experimental data shows that their prediction accuracy strongly depends on the sky characteristics. The hourly irradiance measurements taken on the tilted planes are compared with the estimations given by one isotropic and three anisotropic transposition models. The use of an anisotropic model, based on a physical description of the diffuse radiation, provides a much better accuracy, especially when measurements of the diffuse irradiance on the horizontal plane are not available and thus transposition models have to be applied in combination with a diffuse fraction correlation. This is particularly significant for the planes oriented away from South. (author)

  8. Genome-wide experimental determination of barriers to horizontal gene

    Office of Scientific and Technical Information (OSTI)

    transfer (Journal Article) | SciTech Connect Genome-wide experimental determination of barriers to horizontal gene transfer Citation Details In-Document Search Title: Genome-wide experimental determination of barriers to horizontal gene transfer Horizontal gene transfer, in which genetic material is transferred from the genome of one organism to another, has been investigated in microbial species mainly through computational sequence analyses. To address the lack of experimental data, we

  9. Horizontal well replaces hydraulic fracturing in North Sea gas well

    SciTech Connect (OSTI)

    Reynolds, D.A.; Seymour, K.P. )

    1991-11-25

    This paper reports on excessive water production from hydraulically fractured wells in a poor quality reservoir in the North SEa which prompted the drilling of a horizontal well. Gas production from the horizontal well reached six times that of the offset vertical wells, and no water production occurred. This horizontal well proved commercial the western section of the Anglia field. Horizontal drilling in the North SEa is as an effective technology to enhance hydrocarbon recovery from reservoirs that previously had proven uncommercial with other standard techniques. It is viable for the development of marginal reservoirs, particularly where conditions preclude stimulation from hydraulic fracturing.

  10. MHK Technologies/Horizontal Axis Logarithmic Spiral Turbine ...

    Open Energy Info (EERE)

    Horizontal Axis Logarithmic Spiral Turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Technology Profile Primary Organization Golden...

  11. Zero Discharge Water Management for Horizontal Shale Gas Well...

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

    (fracking), coupled with horizontal drilling, has facilitated exploitation of huge natural gas (gas) reserves in the Devonian-age Marcellus Shale Formation (Marcellus) of...

  12. MHK ISDB/Instruments/TRDI Workhorse Horizontal ADCP | Open Energy...

    Open Energy Info (EERE)

    Horizontal ADCP < MHK ISDB Jump to: navigation, search MHK Instrumentation & Sensor Database Menu Home Search Add Instrument Add Sensor Add Company Community FAQ Help Under...

  13. Method and application of horizontal slice volumetrics to waterflood management and horizontal drilling

    SciTech Connect (OSTI)

    Deshpande, A.; Flemings, P.B. ); Huang, J. )

    1996-01-01

    A computer mapping program was used to make horizontal slices of pore volume. The goal was to create maps that showed the distribution of pore volume vertically and laterally throughout the reservoir. That information was used for studying waterflood feasibility, monitoring an existing waterflood, and planning a horizontal well. This work was done at the United States Naval Petroleum Reserve No. 1, Elk Hills, CA. The reservoirs are the Miocene aged Northwest Stevens A sands and T N sands. These sands are a series of stacked deep water turbidites draped across the western nose of a plunging anticline. To determine the reservoir sensitivity to the approach used to calculate horizontal slice volume, two methods were tested. The first involves creation of four isochores, bounded above by the sand top or base and below by the slice top or base, whose volumes are combined to give the slice volume. The second involves creation of a grid of the slice itself from which slice volume is calculated.

  14. Method and application of horizontal slice volumetrics to waterflood management and horizontal drilling

    SciTech Connect (OSTI)

    Deshpande, A.; Flemings, P.B.; Huang, J.

    1996-12-31

    A computer mapping program was used to make horizontal slices of pore volume. The goal was to create maps that showed the distribution of pore volume vertically and laterally throughout the reservoir. That information was used for studying waterflood feasibility, monitoring an existing waterflood, and planning a horizontal well. This work was done at the United States Naval Petroleum Reserve No. 1, Elk Hills, CA. The reservoirs are the Miocene aged Northwest Stevens A sands and T & N sands. These sands are a series of stacked deep water turbidites draped across the western nose of a plunging anticline. To determine the reservoir sensitivity to the approach used to calculate horizontal slice volume, two methods were tested. The first involves creation of four isochores, bounded above by the sand top or base and below by the slice top or base, whose volumes are combined to give the slice volume. The second involves creation of a grid of the slice itself from which slice volume is calculated.

  15. Yaw dynamics of horizontal axis wind turbines

    SciTech Connect (OSTI)

    Hansen, A.C. )

    1992-05-01

    Designers of a horizontal axis wind turbine yaw mechanism are faced with a difficult decision. They know that if they elect to use a yaw- controlled rotor then the system will suffer increased initial cost and increased inherent maintenance and reliability problems. On the other hand, if they elect to allow the rotor to freely yaw they known they will have to account for unknown and random, though bounded, yaw rates. They will have a higher-risk design to trade-off against the potential for cost savings and reliability improvement. The risk of a yaw-free system could be minimized if methods were available for analyzing and understanding yaw behavior. The complexity of yaw behavior has, until recently, discouraged engineers from developing a complete yaw analysis method. The objectives of this work are to (1) provide a fundamental understanding of free-yaw mechanics and the design concepts most effective at eliminating yaw problems, and (2) provide tested design tools and guidelines for use by free-yaw wind systems manufacturers. The emphasis is on developing practical and sufficiently accurate design methods.

  16. Steerable vertical to horizontal energy transducer for mobile robots

    DOE Patents [OSTI]

    Spletzer, Barry L.; Fischer, Gary J.; Feddema, John T.

    2001-01-01

    The present invention provides a steerable vertical to horizontal energy transducer for mobile robots that less complex and requires less power than two degree of freedom tilt mechanisms. The present invention comprises an end effector that, when mounted with a hopping actuator, translates along axis (typically vertical) actuation into combined vertical and horizontal motion. The end effector, or foot, mounts with an end of the actuator that moves toward the support surface (typically a floor or the earth). The foot is shaped so that the first contact with the support surface is off the axis of the actuator. Off-axis contact with the support surface generates an on-axis force (typically resulting in vertical motion) and a moment orthogonal to the axis. The moment initiates a horizontal tumbling motion, and tilts the actuator so that its axis is oriented with a horizontal component and continued actuation generates both vertical and horizontal force.

  17. A Model For The Transient Temperature Effects Of Horizontal Fluid...

    Open Energy Info (EERE)

    Transient Temperature Effects Of Horizontal Fluid Flow In Geothermal Systems Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: A Model For The...

  18. Determination of Elastic Twist in Horizontal Axis Wind Turbines (HAWTs)

    SciTech Connect (OSTI)

    Stoddard, F.; Nelson, V.; Starcher, K.; Andrews, B.

    2006-06-01

    This report presents the results of a project at the Alternative Energy Institute (AEI) which measured and calculated the elastic twist of three representative composite horizontal-axis blades: Carter 300, Gougeon ESI 54, and UTRC 8 kW.

  19. SATURATED-SUBCOOLED STRATIFIED FLOW IN HORIZONTAL PIPES

    SciTech Connect (OSTI)

    Richard Schultz

    2010-08-01

    Advanced light water reactor systems are designed to use passive emergency core cooling systems with horizontal pipes that provide highly subcooled water from water storage tanks or passive heat exchangers to the reactor vessel core under accident conditions. Because passive systems are driven by density gradients, the horizontal pipes often do not flow full and thus have a free surface that is exposed to saturated steam and stratified flow is present.

  20. Productivity and injectivity of horizontal wells. Quarterly report, January

    Office of Scientific and Technical Information (OSTI)

    1, 1995--March 31, 1995 (Technical Report) | SciTech Connect Productivity and injectivity of horizontal wells. Quarterly report, January 1, 1995--March 31, 1995 Citation Details In-Document Search Title: Productivity and injectivity of horizontal wells. Quarterly report, January 1, 1995--March 31, 1995 × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as

  1. Global Warming

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

    (Optimizing the GTC Code for Blue Gene/Q): ALCF-2 Early Science Program Technical Report (Technical Report) | SciTech Connect Global Simulation of Plasma Microturbulence at the Petascale & Beyond (Optimizing the GTC Code for Blue Gene/Q): ALCF-2 Early Science Program Technical Report Citation Details In-Document Search Title: Global Simulation of Plasma Microturbulence at the Petascale & Beyond (Optimizing the GTC Code for Blue Gene/Q): ALCF-2 Early Science Program Technical Report

  2. Drilling Sideways - A Review of Horizontal Well Technology and Its Domestic Application

    Reports and Publications (EIA)

    1993-01-01

    Focuses primarily on domestic horizontal drilling applications, past and present, and on salient aspects of current and near-future horizontal drilling and completion technology.

  3. Year Global Normal Irradiance Direct Normal Irradiance

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

    Year Global Normal Irradiance Direct Normal Irradiance (TMY3 = 6.7) Global Horizontal Irradiance** (TMY3 = 5.43) Latitude Tilt Irradiance** Diffuse Horizontal Irradiance (TMY3 = 1.46) Peak GNI (1-hr avg) Peak DNI (1-hr avg) Peak GHI (1-hr avg) Peak Lat.Tilt (1-hr avg) TMY2 8.8 6.7 5.6 6.4 1.6 - - - - 2015 8.26 6.58 5.29 6.07 1.34 1167 1067 1090 1208 2014 8.85 7.10 5.54 6.40 1.28 1176 1083 1098 1196 2013 8.82 7.23 5.59 6.63 1.24 1192 1076 1093 1182 2012 9.17 7.41 5.69 6.65 1.21 1177 1080 1091

  4. Global warming, global research, and global governing

    SciTech Connect (OSTI)

    Preining, O.

    1997-12-31

    The anticipated dangers of Global Warming can be mitigated by reducing atmospheric greenhouse gas concentrations, especially CO{sub 2}. To reach acceptable, constant levels within the next couple of centuries it might be necessary to accept stabilization levels higher than present ones, The annual CO{sub 2} emissions must be reduced far below today`s values. This is a very important result of the models discussed in the 1995 IPCC report. However, any even very modest scenario for the future must take into account a substantial increase in the world population which might double during the 21st century, There is a considerable emission reduction potential of the industrialized world due to efficiency increase, However, the demand for energy services by the growing world population will, inspite of the availability of alternative energy resources, possibly lead to a net increase in fossil fuel consumption. If the climate models are right, and the science community believes they are, we will experience a global warming of the order of a couple of degrees over the next century; we have to live with it. To be prepared for the future it is essential for us to use new research techniques embracing not only the familiar fields of hard sciences but also social, educational, ethical and economic aspects, We must find a way to build up the essential intellectual capacities needed to deal with these kinds of general problems within all nations and all societies. But this is not Although, we also have to find the necessary dynamical and highly flexible structures for a global governing using tools such as the environmental regime. The first step was the Framework Convention On Climate Change, UN 1992; for resolution of questions regarding implementations the Conference of the Parties was established.

  5. Automated Tracing of Horizontal Neuron Processes During Retinal Development

    SciTech Connect (OSTI)

    Kerekes, Ryan A [ORNL; Martins, Rodrigo [St. Jude Children's Research Hospital; Dyer, Michael A [ORNL; Gleason, Shaun Scott [ORNL; Karakaya, Mahmut [ORNL; Davis, Denise [St. Jude Children's Research Hospital

    2011-01-01

    In the developing mammalian retina, horizontal neurons undergo a dramatic reorganization oftheir processes shortly after they migrate to their appropriate laminar position. This is an importantprocess because it is now understood that the apical processes are important for establishing theregular mosaic of horizontal cells in the retina and proper reorganization during lamination isrequired for synaptogenesis with photoreceptors and bipolar neurons. However, this process isdifficult to study because the analysis of horizontal neuron anatomy is labor intensive and time-consuming. In this paper, we present a computational method for automatically tracing the three-dimensional (3-D) dendritic structure of horizontal retinal neurons in two-photon laser scanningmicroscope (TPLSM) imagery. Our method is based on 3-D skeletonization and is thus able topreserve the complex structure of the dendritic arbor of these cells. We demonstrate theeffectiveness of our approach by comparing our tracing results against two sets of semi-automatedtraces over a set of 10 horizontal neurons ranging in age from P1 to P5. We observe an averageagreement level of 81% between our automated trace and the manual traces. This automatedmethod will serve as an important starting point for further refinement and optimization.

  6. Coiled tubing buckling implication in drilling and completing horizontal wells

    SciTech Connect (OSTI)

    Wu, J.; Juvkam-Wold, H.C.

    1995-03-01

    This paper discusses coiled tubing buckling and load transmission when drilling and completing horizontal wells. Comprehensive analyses and new equations are presented to predict buckling of coiled tubing, slack-off weight transmission, actual bit weight or packer load, and maximum horizontal length. Coiled tubing lock-up and yield due to buckling are also discussed. These equations can also be used for other coiled tubing operations, such as coiled tubing workover, coiled tubing well stimulation, and even for conventional joint-connected drill strings. Calculations based on the equations presented are also compared with the previous literature.

  7. Horizontal gene transfer and the evolution of transcriptionalregulation in Escherichia coli

    SciTech Connect (OSTI)

    Price, Morgan N.; Dehal, Paramvir S.; Arkin, Adam P.

    2007-12-20

    Background: Most bacterial genes were acquired by horizontalgene transfer from other bacteria instead of being inherited bycontinuous vertical descent from an ancient ancestor}. To understand howthe regulation of these {acquired} genes evolved, we examined theevolutionary histories of transcription factors and of regulatoryinteractions from the model bacterium Escherichia coli K12. Results:Although most transcription factors have paralogs, these usually arose byhorizontal gene transfer rather than by duplication within the E. colilineage, as previously believed. In general, most neighbor regulators --regulators that are adjacent to genes that they regulate -- were acquiredby horizontal gene transfer, while most global regulators evolvedvertically within the gamma-Proteobacteria. Neighbor regulators wereoften acquired together with the adjacent operon that they regulate, sothe proximity might be maintained by repeated transfers (like "selfishoperons"). Many of the as-yet-uncharacterized (putative) regulators havealso been acquired together with adjacent genes, so we predict that theseare neighbor regulators as well. When we analyzed the histories ofregulatory interactions, we found that the evolution of regulation byduplication was rare, and surprisingly, many of the regulatoryinteractions that are shared between paralogs result from convergentevolution. Another surprise was that horizontally transferred genes aremore likely than other genes to be regulated by multiple regulators, andmost of this complex regulation probably evolved after the transfer.Conclusions: Our results highlight the rapid evolution of niche-specificgene regulation in bacteria.

  8. Global Arrays

    Energy Science and Technology Software Center (OSTI)

    2006-02-23

    The Global Arrays (GA) toolkit provides an efficient and portable “shared-memory” programming interface for distributed-memory computers. Each process in a MIMD parallel program can asynchronously access logical blocks of physically distributed dense multi-dimensional arrays, without need for explicit cooperation by other processes. Unlike other shared-memory environments, the GA model exposes to the programmer the non-uniform memory access (NUMA) characteristics of the high performance computers and acknowledges that access to a remote portion of the sharedmore » data is slower than to the local portion. The locality information for the shared data is available, and a direct access to the local portions of shared data is provided. Global Arrays have been designed to complement rather than substitute for the message-passing programming model. The programmer is free to use both the shared-memory and message-passing paradigms in the same program, and to take advantage of existing message-passing software libraries. Global Arrays are compatible with the Message Passing Interface (MPI).« less

  9. Horizontal-well pilot waterflood tests shallow, abandoned field

    SciTech Connect (OSTI)

    McAlpine, J.L. ); Joshi, S.D. )

    1991-08-05

    This paper reports on the suitability of using horizontal wells in a waterflood of shallow, partially depleted sands which will be tested in the Jennings field in Oklahoma. The vertical wells drilled in the Jennings field intersect several well-known formations such as Red Fork, Misner, and Bartlesville sand. Most of these formations have been produced over a number of years, and presently no wells are producing in the field. In the 1940s, 1950s, and 1960s, wells were drilled on 10-acre spacing, and the last well was plugged in 1961. The field was produced only on primary production and produced approximately 1 million bbl of oil. Because the field was not waterflooded, a large potential exists to produce from the field using secondary methods. To improve the economics for the secondary process, a combination of horizontal and vertical wells was considered.

  10. Laminar mixed convection in a horizontal eccentric annulus

    SciTech Connect (OSTI)

    Choudhury, D. ); Karki, K. )

    1992-01-01

    Laminar fluid flow and heat transfer phenomena in cylindrical annuli are encountered in various applications. The purpose of this paper is to present a numerical study of laminar mixed convection in horizontal eccentric annuli. Axial flow and heat transfer in a horizontal cylindrical annulus can be influenced by eccentricity of the inner cylinder and the presence of buoyancy forces. A numerical study is presented for the combined forced and free convection for the fully developed flow and heat transfer to eccentric annuli of different eccentricities and radius ratios. The flow field is characterized by large cross-stream secondary currents and significant flow distortion. The Nusselt number increases significantly with the Rayleigh number; the corresponding increase in the friction factor is relatively small. The eccentricity introduces additional nonuniformity of the flow and temperature fields.

  11. Horizontal Pretreatment Reactor System (Poster), NREL (National Renewable Energy Laboratory)

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

    Diff erent pretreatment chemistry/ residence time combinations are possible using these multiple horizontal-tube reactors * Each tube is indirectly and directly steam heated to temperatures of 150 0 C to 210 0 C * Residence time is varied by changing the speed of the auger that moves the biomass through each tube reactor * Tubes are used individually or in combination to achieve diff erent pretreatment residence times * Smaller tubes made from Hastelloy, an acid-resistant material, are used with

  12. The Impact of using different parameterizations of unresolved horizontal

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

    variability of cloud water in the CCCma GCM The Impact of using different parameterizations of unresolved horizontal variability of cloud water in the CCCma GCM Cole, Jason Meteorological Service of Canada Barker, Howard Meteorological Service of Canada Li, Jiangnan Canadian Center for Climate Modelling von Salzen, Knut Category: Modeling A current area of research in atmospheric radiative transfer involves description and inclusion of unresolved cloud structure in radiative transfer models

  13. Horizontal film balance having wide range and high sensitivity

    DOE Patents [OSTI]

    Abraham, B.M.; Miyano, K.; Ketterson, J.B.

    1981-03-05

    A thin-film, horizontal balance instrument is provided for measuring surface tension (surface energy) of thin films suspended on a liquid substrate. The balance includes a support bearing and an optical feedback arrangement for wide-range, high sensitivity measurements. The force on the instrument is balanced by an electromagnet, the current through the magnet providing a measure of the force applied to the instrument. A novel float construction is also disclosed.

  14. Horizontal film balance having wide range and high sensitivity

    DOE Patents [OSTI]

    Abraham, B.M.; Miyano, K.; Ketterson, J.B.

    1983-11-08

    A thin-film, horizontal balance instrument is provided for measuring surface tension (surface energy) of thin films suspended on a liquid substrate. The balance includes a support bearing and an optical feedback arrangement for wide-range, high sensitivity measurements. The force on the instrument is balanced by an electromagnet, the current through the magnet providing a measure of the force applied to the instrument. A novel float construction is also disclosed. 5 figs.

  15. Horizontal film balance having wide range and high sensitivity

    DOE Patents [OSTI]

    Abraham, Bernard M.; Miyano, Kenjiro; Ketterson, John B.

    1983-01-01

    A thin-film, horizontal balance instrument is provided for measuring surface tension (surface energy) of thin films suspended on a liquid substrate. The balance includes a support bearing and an optical feedback arrangement for wide-range, high sensitivity measurements. The force on the instrument is balanced by an electromagnet, the current through the magnet providing a measure of the force applied to the instrument. A novel float construction is also disclosed.

  16. 24 CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES

    SciTech Connect (OSTI)

    Erik C. Westman

    2002-07-01

    This report describes the technical progress on a project to design and construct a multi-channel geophone array that improves tomographic imaging capabilities in both surface and underground mines. Especially important in the design of the array is sensor placement. One issue related to sensor placement is addressed in this report: the method of emplacing the array in a long, horizontal borehole. Improved imaging capabilities will produce energy, environmental, and economic benefits by increasing exploration accuracy and reducing operating costs.

  17. Natural convection heat transfer within horizontal spent nuclear fuel assemblies

    SciTech Connect (OSTI)

    Canaan, R.E.

    1995-12-01

    Natural convection heat transfer is experimentally investigated in an enclosed horizontal rod bundle, which characterizes a spent nuclear fuel assembly during dry storage and/or transport conditions. The basic test section consists of a square array of sixty-four stainless steel tubular heaters enclosed within a water-cooled rectangular copper heat exchanger. The heaters are supplied with a uniform power generation per unit length while the surrounding enclosure is maintained at a uniform temperature. The test section resides within a vacuum/pressure chamber in order to subject the assembly to a range of pressure statepoints and various backfill gases. The objective of this experimental study is to obtain convection correlations which can be used in order to easily incorporate convective effects into analytical models of horizontal spent fuel systems, and also to investigate the physical nature of natural convection in enclosed horizontal rod bundles in general. The resulting data consist of: (1) measured temperatures within the assembly as a function of power, pressure, and backfill gas; (2) the relative radiative contribution for the range of observed temperatures; (3) correlations of convective Nusselt number and Rayleigh number for the rod bundle as a whole; and (4) correlations of convective Nusselt number as a function of Rayleigh number for individual rods within the array.

  18. Horizontal natural gas storage caverns and methods for producing same

    DOE Patents [OSTI]

    Russo, Anthony

    1995-01-01

    The invention provides caverns and methods for producing caverns in bedded salt deposits for the storage of materials that are not solvents for salt. The contemplated salt deposits are of the bedded, non-domed variety, more particularly salt found in layered formations that are sufficiently thick to enable the production of commercially usefully sized caverns completely encompassed by walls of salt of the formation. In a preferred method, a first bore hole is drilled into the salt formation and a cavity for receiving insolubles is leached from the salt formation. Thereafter, at a predetermined distance away from the first bore hole, a second bore hole is drilled towards the salt formation. As this drill approaches the salt, the drill assumes a slant approach and enters the salt and drills through it in a horizontal direction until it intersects the cavity for receiving insolubles. This produces a substantially horizontal conduit from which solvent is controlledly supplied to the surrounding salt formation, leaching the salt and producing a concentrated brine which is removed through the first bore hole. Insolubles are collected in the cavity for receiving insolubles. By controlledly supplying solvent, a horizontal cavern is produced with two bore holes extending therefrom.

  19. Productivity improvement by frontier horizontal drilling in Italy

    SciTech Connect (OSTI)

    Schenato, A.

    1995-12-31

    Italian domestic activity on horizontal wells has been specially addressed to carbonate reservoir and specifically targeted to re-entry in existing wells. The speech will focus on the specific experience matured in frontier applications in Italy, from 1989 with the short radius drain holes in Sicily, throughout world record deep water short radius in the southern part of Adriatic sea and depth world record medium radius in a HP/HT reservoir in the Po Valley. Production results will be reported as well as the achieved technological aspects.

  20. Crosswell Imaging Technology & Advanced DSR Navigation for Horizontal Directional Drilling

    SciTech Connect (OSTI)

    Larry Stolarczyk

    2008-08-08

    The objective of Phase II is to develop and demonstrate real-time measurement-while-drilling (MWD) for guidance and navigation of drill strings during horizontal drilling operations applicable to both short and long holes. The end product of Phase II is a functional drill-string assembly outfitted with a commercial version of Drill String Radar (DSR). Project Objectives Develop and demonstrate a dual-phase methodology of in-seam drilling, imaging, and structure confirmation. This methodology, illustrated in Figure 1, includes: (1) Using RIM to image between drill holes for seam thickness estimates and in-seam structures detection. Completed, February 2005; and (2) Using DSR for real-time MWD guidance and navigation of drillstrings during horizontal drilling operations. Completed, November 2008. As of November 2008, the Phase II portion of Contract DE-FC26-04NT42085 is about 99% complete, including milestones and tasks original outlined as Phase II work. The one percent deficiency results from MSHA-related approvals which have yet to be granted (at the time of reporting). These approvals are pending and are do not negatively impact the scope of work or project objectives.

  1. Global Home Filesystem

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

    Global Home Global Home Filesystem Overview Global home directories (or "global homes") provide a convenient means for a user to have access to dotfiles, source files, input files, configuration files, etc., regardless of the platform the user is logged in to. Quotas, Performance, and Usage Default global home quotas are 40 GB and 1,000,000 inodes. Quota increases in global homes are approved only in extremely unusual circumstances; users are encouraged to use the various scratch,

  2. Visual inspections of N Reactor horizontal control rod channels

    SciTech Connect (OSTI)

    Woodruff, E.M.

    1990-07-01

    This document describes the examination of thirteen horizontal control rod channels during the N Reactor Surveillance Program campaigns of 1987 and 1988. Traverses with miniature video cameras recorded the condition and relative positions of graphite blocks that form channel walls. The major conclusion confirms that no conditions exist that would prevent rod insertion. Where encroachment of broken filler block keys into the channel indicated a potential for rod motion impairment their removal by displacement into gaps between blocks was performed as preventive maintenance. In some locations a chisel was used in clearing keys lodged in gaps between tube blocks. Other observations include counts of safety balls observed in channels, breaks in tube blocks and Tee-bars and separations at Tee-bar junctions that results from axial graphite contraction. 15 refs., 18 figs., 6 tabs.

  3. 3-D laser patterning process utilizing horizontal and vertical patterning

    DOE Patents [OSTI]

    Malba, Vincent; Bernhardt, Anthony F.

    2000-01-01

    A process which vastly improves the 3-D patterning capability of laser pantography (computer controlled laser direct-write patterning). The process uses commercially available electrodeposited photoresist (EDPR) to pattern 3-D surfaces. The EDPR covers the surface of a metal layer conformally, coating the vertical as well as horizontal surfaces. A laser pantograph then patterns the EDPR, which is subsequently developed in a standard, commercially available developer, leaving patterned trench areas in the EDPR. The metal layer thereunder is now exposed in the trench areas and masked in others, and thereafter can be etched to form the desired pattern (subtractive process), or can be plated with metal (additive process), followed by a resist stripping, and removal of the remaining field metal (additive process). This improved laser pantograph process is simpler, faster, move manufacturable, and requires no micro-machining.

  4. High-frequency shear-horizontal surface acoustic wave sensor

    DOE Patents [OSTI]

    Branch, Darren W

    2013-05-07

    A Love wave sensor uses a single-phase unidirectional interdigital transducer (IDT) on a piezoelectric substrate for leaky surface acoustic wave generation. The IDT design minimizes propagation losses, bulk wave interferences, provides a highly linear phase response, and eliminates the need for impedance matching. As an example, a high frequency (.about.300-400 MHz) surface acoustic wave (SAW) transducer enables efficient excitation of shear-horizontal waves on 36.degree. Y-cut lithium tantalate (LTO) giving a highly linear phase response (2.8.degree. P-P). The sensor has the ability to detect at the pg/mm.sup.2 level and can perform multi-analyte detection in real-time. The sensor can be used for rapid autonomous detection of pathogenic microorganisms and bioagents by field deployable platforms.

  5. High-frequency shear-horizontal surface acoustic wave sensor

    DOE Patents [OSTI]

    Branch, Darren W

    2014-03-11

    A Love wave sensor uses a single-phase unidirectional interdigital transducer (IDT) on a piezoelectric substrate for leaky surface acoustic wave generation. The IDT design minimizes propagation losses, bulk wave interferences, provides a highly linear phase response, and eliminates the need for impedance matching. As an example, a high frequency (.about.300-400 MHz) surface acoustic wave (SAW) transducer enables efficient excitation of shear-horizontal waves on 36.degree. Y-cut lithium tantalate (LTO) giving a highly linear phase response (2.8.degree. P-P). The sensor has the ability to detect at the pg/mm.sup.2 level and can perform multi-analyte detection in real-time. The sensor can be used for rapid autonomous detection of pathogenic microorganisms and bioagents by field deployable platforms.

  6. IDENTIFYING BLUE HORIZONTAL BRANCH STARS USING THE z FILTER

    SciTech Connect (OSTI)

    Vickers, John J.; Grebel, Eva K.; Huxor, Avon P.

    2012-04-15

    In this paper we present a new method for selecting blue horizontal branch (BHB) candidates based on color-color photometry. We make use of the Sloan Digital Sky Survey z band as a surface gravity indicator and show its value for selecting BHB stars from quasars, white dwarfs, and main-sequence A-type stars. Using the g, r, i, and z bands, we demonstrate that extraction accuracies on a par with more traditional u, g, and r photometric selection methods may be achieved. We also show that the completeness necessary to probe major Galactic structure may be maintained. Our new method allows us to efficiently select BHB stars from photometric sky surveys that do not include a u-band filter such as the Panoramic Survey Telescope and Rapid Response System.

  7. Global Climate & Energy

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

    SunShot Grand Challenge: Regional Test Centers Global Climate & Energy HomeTag:Global Climate & Energy Electricity use by water service sector and county. Shown are electricity ...

  8. Sandia Energy - Global

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

    Global Home Analysis Permalink Gallery Results from the Human Resilience Index and Modeling project were reported recently in the National Intelligence Council's Global Trends 2030...

  9. Cleantech Professional Resource Global Limited CPR Global | Open...

    Open Energy Info (EERE)

    Professional Resource Global Limited CPR Global Jump to: navigation, search Name: Cleantech Professional Resource Global Limited (CPR Global) Place: London, United Kingdom Zip:...

  10. Operon Formation is Driven by Co-Regulation and Not by Horizontal Gene

    Office of Scientific and Technical Information (OSTI)

    Transfer (Journal Article) | SciTech Connect Operon Formation is Driven by Co-Regulation and Not by Horizontal Gene Transfer Citation Details In-Document Search Title: Operon Formation is Driven by Co-Regulation and Not by Horizontal Gene Transfer Although operons are often subject to horizontal gene transfer (HGT), non-HGT genes are particularly likely to be in operons. To resolve this apparent discrepancy and to determine whether HGT is involved in operon formation, we examined the

  11. A tropical influence on global climate

    SciTech Connect (OSTI)

    Schneider, E.K.; Kirtman, B.P.; Lindzen, R.S.

    1997-05-15

    A potential influence of tropical sea surface temperature on the global climate response to a doubling of the CO{sub 2} concentration is tested using an atmospheric general circulation model coupled to a slab mixed layer ocean. The warming is significantly reduced when sea surface temperatures in the eastern equatorial Pacific cold tongue region between latitudes 2.25{degrees}N and 2.25{degrees}S are held at the control simulation values. Warming of the global mean temperature outside of the cold tongue region is reduced from 2.4{degrees}C in the unconstrained case to 1.9{degrees}C when the sea surface temperature constraint is applied. The decrease in the warming results from a positive net heat flux into the ocean cold tongue region and implicit heat storage in the subsurface ocean, induced by horizontal atmospheric heat fluxes. The reduced surface temperature warming outside of the cold tongue region is due to reduction in the downward longwave radiative flux at the surface, caused in turn by reduced atmospheric temperature and moisture. The global mean surface temperature responds to the heat storage in the ocean as if the global mean radiative forcing due to the doubled CO{sub 2} (approximately 4 W m{sup {minus}2}) was reduced by the value of the global mean heat flux into the ocean. This mechanism also provides a possible explanation for the observed high correlation on interannual timescales between the global mean tropospheric temperature and sea surface temperature in the eastern tropical Pacific. The results emphasize the importance of correctly modeling the dynamical processes in the ocean and atmosphere that help determine the sea surface temperature in the equatorial eastern Pacific, in addition to the thermodynamical processes, in projecting global warming. 23 refs., 8 figs.

  12. New Global Research Website | GE Global Research

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

    I Want to See... the New Global Research Website 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) I Want to See... the New Global Research Website GE Global Research 2014.03.17 Today, we are excited to unveil the brand new GE Global Research website. You can find this new web destination at geglobalresearch.com. The new

  13. Zero Discharge Water Management for Horizontal Shale Gas Well Development

    SciTech Connect (OSTI)

    Paul Ziemkiewicz; Jennifer Hause; Raymond Lovett; David Locke Harry Johnson; Doug Patchen

    2012-03-31

    Hydraulic fracturing technology (fracking), coupled with horizontal drilling, has facilitated exploitation of huge natural gas (gas) reserves in the Devonian-age Marcellus Shale Formation (Marcellus) of the Appalachian Basin. The most-efficient technique for stimulating Marcellus gas production involves hydraulic fracturing (injection of a water-based fluid and sand mixture) along a horizontal well bore to create a series of hydraulic fractures in the Marcellus. The hydraulic fractures free the shale-trapped gas, allowing it to flow to the well bore where it is conveyed to pipelines for transport and distribution. The hydraulic fracturing process has two significant effects on the local environment. First, water withdrawals from local sources compete with the water requirements of ecosystems, domestic and recreational users, and/or agricultural and industrial uses. Second, when the injection phase is over, 10 to 30% of the injected water returns to the surface. This water consists of flowback, which occurs between the completion of fracturing and gas production, and produced water, which occurs during gas production. Collectively referred to as returned frac water (RFW), it is highly saline with varying amounts of organic contamination. It can be disposed of, either by injection into an approved underground injection well, or treated to remove contaminants so that the water meets the requirements of either surface release or recycle use. Depending on the characteristics of the RFW and the availability of satisfactory disposal alternatives, disposal can impose serious costs to the operator. In any case, large quantities of water must be transported to and from well locations, contributing to wear and tear on local roadways that were not designed to handle the heavy loads and increased traffic. The search for a way to mitigate the situation and improve the overall efficiency of shale gas production suggested a treatment method that would allow RFW to be used as make-up water for successive fracs. RFW, however, contains dissolved salts, suspended sediment and oils that may interfere with fracking fluids and/or clog fractures. This would lead to impaired well productivity. The major technical constraints to recycling RFW involves: identification of its composition, determination of industry standards for make-up water, and development of techniques to treat RFW to acceptable levels. If large scale RFW recycling becomes feasible, the industry will realize lower transportation and disposal costs, environmental conflicts, and risks of interruption in well development schedules.

  14. The effect of horizontal resolution on simulation quality in the Community Atmospheric Model, CAM5.1

    SciTech Connect (OSTI)

    Wehner, Michael F.; Reed, Kevin A.; Li, Fuyu; Prabhat, -; Bacmeister, Julio; Chen, Cheng -Ta; Paciorek, Christopher; Gleckler, Peter J.; Sperber, Kenneth R.; Collins, William D.; Gettelman, Andrew; Jablonowski, Christiane

    2014-11-05

    We present an analysis of version 5.1 of the Community Atmospheric Model (CAM5.1) at a high horizontal resolution. Intercomparison of this global model at approximately 0.25, 1, and 2 is presented for extreme daily precipitation as well as for a suite of seasonal mean fields. In general, extreme precipitation amounts are larger in high resolution than in lower-resolution configurations. In many but not all locations and/or seasons, extreme daily precipitation rates in the high-resolution configuration are higher and more realistic. The high-resolution configuration produces tropical cyclones up to category 5 on the Saffir-Simpson scale and a comparison to observations reveals both realistic and unrealistic model behavior. In the absence of extensive model tuning at high resolution, simulation of many of the mean fields analyzed in this study is degraded compared to the tuned lower-resolution public released version of the model.

  15. 24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES

    SciTech Connect (OSTI)

    Erik C. Westman

    2003-10-24

    Improved ground-imaging capabilities have enormous potential to increase energy, environmental, and economic benefits by improving exploration accuracy and reducing energy consumption during the mining cycle. Seismic tomography has been used successfully to monitor and evaluate geologic conditions ahead of a mining face. A primary limitation to existing seismic tomography, however, is the placement of sensors. The goal of this project is to develop an array of 24 seismic sensors capable of being mounted in either a vertical or horizontal borehole. Development of this technology reduces energy usage in excavation, transportation, ventilation, and processing phases of the mining operation because less waste is mined and the mining cycle suffers fewer interruptions. This new technology benefits all types of mines, including metal/nonmetal, coal, and quarrying. The primary research tasks focused on sensor placement method, sensor housing and clamping design, and cabling and connector selection. An initial design is described in the report. Following assembly, a prototype was tested in the laboratory as well as at a surface stone quarry. Data analysis and tool performance were used for subsequent design modifications. A final design is described, of which several components are available for patent application. Industry partners have shown clear support for this research and demonstrated an interest in commercialization following project completion.

  16. Lifting surface performance analysis for horizontal axis wind turbines

    SciTech Connect (OSTI)

    Kocurek, D.

    1987-06-01

    This report describes how numerical lifting-surface theory is applied to the calculation of a horizontal-axis wind turbine's aerodynamic characteristics and performance. The report also describes how such an application is implemented as a computer program. The method evolved from rotary-wing and helicopter applications and features a detailed, prescribed wake. The wake model extends from a hovering-rotor experimental generalization to include the effect of the windmill brake state on the radial and axial displacement rates of the trailing vortex system. Performance calculations are made by coupling the lifting-surface circulation solution to a blade-element analysis that incorporates two-dimensional airfoil characteristics as functions of angle of attack and Reynolds number. Several analytical stall models are also provided to extend the airfoil characteristics beyond the limits of available data. Although this work focuses on the steady-performance problem, the method includes ways to investigate the effects of wind-shear profile, tower shadow, and off-axis shaft alignment. Correlating the method to measured wind-turbine performance, and comparing it to blade-element momentum theory calculations, validate and highlight the extreme sensitivity of predictions to the quality of early post-stall airfoil behavior.

  17. Horizontal underbalanced drilling of gas wells with coiled tubing

    SciTech Connect (OSTI)

    Cox, R.J.; Li, J.; Lupick, G.S.

    1999-03-01

    Coiled tubing drilling technology is gaining popularity and momentum as a significant and reliable method of drilling horizontal underbalanced wells. It is quickly moving into new frontiers. To this point, most efforts in the Western Canadian Basin have been focused towards sweet oil reservoirs in the 900--1300 m true vertical depth (TVD) range, however there is an ever-increasing interest in deeper and gas-producing formations. Significant design challenges on both conventional and coiled tubing drilling operations are imposed when attempting to drill these formations underbalanced. Coiled tubing is an ideal technology for underbalanced drilling due to its absence of drillstring connections resulting in continuous underbalanced capabilities. This also makes it suitable for sour well drilling and live well intervention without the risk of surface releases of reservoir gas. Through the use of pressure deployment procedures it is possible to complete the drilling operation without need to kill the well, thereby maintaining underbalanced conditions right through to the production phase. The use of coiled tubing also provides a means for continuous wireline communication with downhole steering, logging and pressure recording devices.

  18. Horizontally scaling dChache SRM with the Terracotta platform

    SciTech Connect (OSTI)

    Perelmutov, T.; Crawford, M.; Moibenko, A.; Oleynik, G.; /Fermilab

    2011-01-01

    The dCache disk caching file system has been chosen by a majority of LHC experiments Tier 1 centers for their data storage needs. It is also deployed at many Tier 2 centers. The Storage Resource Manager (SRM) is a standardized grid storage interface and a single point of remote entry into dCache, and hence is a critical component. SRM must scale to increasing transaction rates and remain resilient against changing usage patterns. The initial implementation of the SRM service in dCache suffered from an inability to support clustered deployment, and its performance was limited by the hardware of a single node. Using the Terracotta platform, we added the ability to horizontally scale the dCache SRM service to run on multiple nodes in a cluster configuration, coupled with network load balancing. This gives site administrators the ability to increase the performance and reliability of SRM service to face the ever-increasing requirements of LHC data handling. In this paper we will describe the previous limitations of the architecture SRM server and how the Terracotta platform allowed us to readily convert single node service into a highly scalable clustered application.

  19. New design of a guidelineless horizontal tree for deepwater ESP wells

    SciTech Connect (OSTI)

    Olijnik, L.A.; Vigesa, S.; Paula, M.T.R.; Figueiredo, M.W. de; Rutherford, H.W.

    1996-12-31

    This paper presents the new design of a horizontal tree for deepwater installation, as a key piece of equipment for application of a Electrical Submersible Pump in Subsea Wells. The production from subsea wells equipped with ESPs is a reality since October/94 with the first installation in Campos Basin. The horizontal tree adds simplicity to workover operations expected to be two to three times more frequency when compared to natural flow or gas lifted wells. The design and fabrication of the deepwater horizontal tree is a result of a Technological Cooperation Agreement. The design incorporates new solutions, mainly in diverless guidelineless connection of power cables and flowlines using the vertical connection system. The guidelineless horizontal subsea tree is fully prepared to be integrated on the new manifolds being designed for the Brazilian deepwater oilfields. The applications of the horizontal trees in subsea ESP wells reduce intervention cost, increasing economical attractiveness and scenarios for the applications of this new boosting technology.

  20. Horizontal oil well applications and oil recovery assessment. Volume 2: Applications overview, Final report

    SciTech Connect (OSTI)

    Deskins, W.G.; McDonald, W.J.; Knoll, R.G.; Springer, S.J.

    1995-03-01

    Horizontal technology has been applied in over 110 formations in the USA. Volume 1 of this study addresses the overall success of horizontal technology, especially in less-publicized formations, i.e., other than the Austin Chalk, Bakken, and Niobrara. Operators in the USA and Canada were surveyed on a formation-by-formation basis by means of a questionnaire. Response data were received describing horizontal well projects in 58 formations in the USA and 88 in Canada. Operators` responses were analyzed for trends in technical and economic success based on lithology (clastics and carbonates) and resource type (light oil, heavy oil, and gas). The potential impact of horizontal technology on reserves was also estimated. A forecast of horizontal drilling activity over the next decade was developed.

  1. Coiled tubing workover saves horizontal well in Lake Maracaibo

    SciTech Connect (OSTI)

    Lizak, K.; Patterson, J.; Suarez, D.; Salas, J.

    1996-12-31

    A slotted liner horizontal completion became stuck while being run. Inflatable packers were to be used to isolate the productive interval from a water-bearing, unconsolidated sand in the curved section of this well. While personnel were deciding how to cement the well, the liner was left in the hole with the inflatable packers unset, and the production tubing was run. Coiled tubing was used to log the well, isolate the productive interval, and remove damage to restore well productivity. Personnel considered all possible options, and a thorough decision-making process guided the workover. Because of severe lost-circulation problems, extensive ``what if`` scenarios were made and updated daily for the engineers on location. Service company and oil company personnel worked together to guarantee the job designs were practical and did not exceed the limits of the equipment on location. Computer simulations of all operations were run to allow corrective action to be taken if unusual circumstances arose. All fluids were thoroughly laboratory tested and witnessed by oil company personnel to ensure job success. Problems on the job included lost circulation, locating the exact positions of the packers and water zone, ensuring correct cement placement, removing mud and workover fluids without damaging the squeeze, and bad weather on Lake Maracaibo. Advantages and disadvantages of all the solutions that were considered are included to assist anyone in a similar situation. Post-job oil production has stabilized at 900 BOPD with no water or sand production. Careful job planning and the versatility of coiled tubing saved this well and proved economical with an estimated payout of 33 days, assuming a price of $12 per barrel of oil.

  2. GE Global Research Contact | GE Global Research

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

    1800 Cai Lun Road, Zhangjiang High-Tech Park, Pudong, Shanghai, 201203, China Joey Yang +86 21 38773407 joey.yang@ge.com Communications and Public Relations GE Global...

  3. GE Global Research Locations | GE Global Research

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

    Inventio Always Open At GE Global Research, we work around the clock and across the globe to build, power, move and cure the world. Continue to the experience En Bp China...

  4. Venture Global Calcasieu Pass, LLC - (Formerly Venture Global...

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

    Venture Global Calcasieu Pass, LLC - (Formerly Venture Global LNG, LLC) - 14-88-LNG Venture Global Calcasieu Pass, LLC - (Formerly Venture Global LNG, LLC) - 14-88-LNG The Office ...

  5. Before House Subcommittee on Africa, Global Health, Global Human Rights,

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

    and International Organizations, Committee on Foreign Affairs | Department of Energy Subcommittee on Africa, Global Health, Global Human Rights, and International Organizations, Committee on Foreign Affairs Before House Subcommittee on Africa, Global Health, Global Human Rights, and International Organizations, Committee on Foreign Affairs Testimony of Jonathan Elkind, Acting Assistant Secretary, Office of International Affairs Before House Subcommittee on Africa, Global Health, Global Human

  6. Energy harvesting from coherent resonance of horizontal vibration of beam excited by vertical base motion

    SciTech Connect (OSTI)

    Lan, C. B.; Qin, W. Y.

    2014-09-15

    This letter investigates the energy harvesting from the horizontal coherent resonance of a vertical cantilever beam subjected to the vertical base excitation. The potential energy of the system has two symmetric potential wells. So, under vertical excitation, the system can jump between two potential wells, which will lead to the large vibration in horizontal direction. Two piezoelectric patches are pasted to harvest the energy. From experiment, it is found that the vertical excitation can make the beam turn to be bistable. The system can transform vertical vibration into horizontal vibration of low frequency when excited by harmonic motion. The horizontal coherence resonance can be observed when excited by a vertical white noise. The corresponding output voltages of piezoelectric films reach high values.

  7. The local heat transfer mathematical model between vibrated fluidized beds and horizontal tubes

    SciTech Connect (OSTI)

    Zhu, Xuejun; Ye, Shichao; Pan, Xiaoheng

    2008-05-15

    A dimensionless mathematical model is proposed to predict the local heat transfer coefficients between vibrated fluidized beds and immersed horizontal tubes, and the effects of the thickness of gas film and the contact time of particle packets are well considered. Experiments using the glass beads (the average diameter bar d{sub p}=1.83mm) were conducted in a two-dimensional vibrated fluidized bed (240 mm x 80 mm). The local heat transfer law between vibrated fluidized bed and horizontal tube surface has been investigated. The results show that the values of theoretical prediction are in good agreement with experimental data, so the model is able to predict the local heat transfer coefficients between vibrated fluidized beds and immersed horizontal tubes reasonably well, and the error is in range of {+-}15%. The results can provide references for future designing and researching on the vibrated fluidized beds with immersed horizontal tubes. (author)

  8. The drilling of a horizontal well in a mature oil field

    SciTech Connect (OSTI)

    Rougeot, J.E.; Lauterbach, K.A.

    1991-01-01

    This report documents the drilling of a medium radius horizontal well in the Bartlesville Sand of the Flatrock Field, Osage County, Oklahoma by Rougeot Oil and Gas Corporation (Rougeot) of Sperry, Oklahoma. The report includes the rationale for selecting the particular site, the details of drilling the well, the production response, conclusions reached, and recommendations made for the future drilling of horizontal wells. 11 figs., 2 tabs.

  9. Shear horizontal surface acoustic wave microsensor for Class A viral and

    Office of Scientific and Technical Information (OSTI)

    bacterial detection. (Technical Report) | SciTech Connect Shear horizontal surface acoustic wave microsensor for Class A viral and bacterial detection. Citation Details In-Document Search Title: Shear horizontal surface acoustic wave microsensor for Class A viral and bacterial detection. The rapid autonomous detection of pathogenic microorganisms and bioagents by field deployable platforms is critical to human health and safety. To achieve a high level of sensitivity for fluidic detection

  10. Global Threat Reduction Initiative

    Office of Environmental Management (EM)

    Department of Energy Minimize Nuclear Waste Global Nuclear Energy Partnership Fact Sheet - Minimize Nuclear Waste GNEP will increase the efficiency in the management of used nuclear fuel, also known as spent fuel, and defer the need for additional geologic nuclear waste repositories until the next century. PDF icon Global Nuclear Energy Partnership Fact Sheet - Minimize Nuclear Waste More Documents & Publications GNEP Element:Develop Enhanced Nuclear Safeguards Global Nuclear Energy

  11. Building | GE Global Research

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

    Read More Ceramic Matrix Composites Improve Engine Efficiency Ceramic matrix composites (CMCs) are a breakthrough materials technology for jet engines that started at our Global ...

  12. ARM - Global Warming

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

    Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox ...

  13. ARM - Global Experts

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

    Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox ...

  14. ARM - Global Thinkers

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

    Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox ...

  15. ARM - Global Beginners

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

    Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox ...

  16. Global Climate Models

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

    Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable ... Climate & Earth Systems Climate Measurement & Modeling Arctic Climate Measurements Global ...

  17. Global Climate & Energy

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

    Participated in the 2013 Domenici Public Policy Conference Carbon Capture & Storage, Carbon Storage, Climate, Earth Sciences Research Center, Energy, Global Climate & Energy, ...

  18. Global Climate & Energy

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

    Team Attends World Water Week in Stockholm Climate, Energy, Global Climate & Energy, Modeling, Modeling & Analysis, News, News & Events, Water Security Sandia Team Attends World ...

  19. Curing | GE Global Research

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

    Curing We're pioneering medical developments, from robotic healthcare assistants to diagnostic tools and specialized, globally deployed gear. Home > Impact > Curing Invention...

  20. Curing | GE Global Research

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

    Curing We're pioneering medical developments, from robotic healthcare assistants to diagnostic tools and specialized, globally deployed gear. Home > Impact > Curing Crowdsourcing...

  1. A global warning for global warming

    SciTech Connect (OSTI)

    Paepe, R.

    1996-12-31

    The problem of global warming is a complex one not only because it is affecting desert areas such as the Sahel leading to famine disasters of poor rural societies, but because it is an even greater threat to modern well established industrial societies. Global warming is a complex problem of geographical, economical and societal factors together which definitely are biased by local environmental parameters. There is an absolute need to increase the knowledge of such parameters, especially to understand their limits of variance. The greenhouse effect is a global mechanism which means that in changing conditions at one point of the Earth, it will affect all other regions of the globe. Industrial pollution and devastation of the forest are quoted as similar polluting anthropogenic activities in far apart regions of the world with totally different societies and industrial compounds. The other important factor is climatic cyclicity which means that droughts are bound to natural cycles. These natural cycles are numerous as is reflected in the study of geo-proxydata from several sequential geological series on land, ice and deepsea. Each of these cycles reveals a drought cycle which occasionally interfere at the same time. It is believed that the present drought might well be a point of interference between the natural cycles of 2,500 and 1,000 years and the man induced cycle of the last century`s warming up. If the latter is the only cycle involved, man will be able to remediate. If not, global warming will become even more disastrous beyond the 21st century.

  2. GE Global Research News | GE Global Research

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

    Newsroom Our technologies transform GE's businesses and the world. Learn about them, meet our experts and read news coverage about our work. Home > Newsroom Meet Our Experts Our scientists are global leaders in their fields. They welcome media inquiries. Find an Expert » Media Contacts A photograph of Natalia Albuquerque Rio de Janeiro Natalia Albuquerque +55 21 3548-6193 A photograph of Todd Alhart Niskayuna, Oklahoma City, Munich Todd Alhart +1.518.387.7914 A photograph of Tenzin Dechen

  3. Photonics | GE Global Research

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

    Home > Impact > The Photonics Lab at GE Global Research 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) The Photonics Lab at GE Global Research Loucas Tsakalakos, the Photonics lab manager at GE Global Research, introduces photonics and shares the lab's work on innovative ways to use light. You Might Also Like

  4. Global Cool Cities Alliance

    Broader source: Energy.gov [DOE]

    The Department of Energy (DOE) is currently supporting the Global Cool Cities Alliance (GCCA), a non-profit organization that works with cities, regions, and national governments to speed the...

  5. Building | GE Global Research

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

    Read More Electric Submersible Pumps (ESPs) Surface More Oil and Gas A technology used in 60% of global oil production today, ESPs extract oil by pumping it to the surface. In ...

  6. Invention | GE Global Research

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

    Invention Our people drive every scientific advance we make, every day. Find out who they are and what they're thinking right now. Home > Invention Inventors GE Global Research...

  7. Building | GE Global Research

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

    how we work across supply chains. By... Read More What is the GE store? Mark Little, CTO & Head of Global Research at GE, describes what the GE Store means and why it's...

  8. Fast Global File Status

    Energy Science and Technology Software Center (OSTI)

    2013-01-01

    Fast Global File Status (FGFS) is a system software package that implimints a scalable mechanism to retrieve file information, such as its degree of distribution or replication and consistency.

  9. Global Renewable Power International Global RPI | Open Energy...

    Open Energy Info (EERE)

    to: navigation, search Name: Global Renewable Power International (Global RPI) Place: Spain Sector: Wind energy Product: Spain-based developer of wind projects in Poland, Croatia...

  10. Before House Subcommittee on Africa, Global Health, Global Human...

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

    Before House Subcommittee on Africa, Global Health, Global Human Rights, and International Organizations, Committee on Foreign Affairs Testimony of Jonathan Elkind, Acting ...

  11. Horizontal molecular orientation in solution-processed organic light-emitting diodes

    SciTech Connect (OSTI)

    Zhao, L.; Inoue, M.; Komino, T.; Kim, J.-H.; Ribierre, J. C. E-mail: adachi@cstf.kyushu-u.ac.jp [Center for Organic Photonics and Electronics Research , Kyushu University, 744 Motooka, Nishi, Fukuoka 819-0395; Japan Science and Technology Agency , ERATO, Adachi Molecular Exciton Engineering Project, c and others

    2015-02-09

    Horizontal orientation of the emission transition dipole moments achieved in glassy vapor-deposited organic thin films leads to an enhancement of the light out-coupling efficiency in organic light-emitting diodes (OLEDs). Here, our combined study of variable angle spectroscopic ellipsometry and angle dependent photoluminescence demonstrates that such a horizontal orientation can be achieved in glassy spin-coated organic films based on a composite blend of a heptafluorene derivative as a dopant and a 4,4?-bis(N-carbazolyl)-1,1?-biphenyl as a host. Solution-processed fluorescent OLEDs with horizontally oriented heptafluorene emitters were then fabricated and emitted deep blue electroluminescence with an external quantum efficiency as high as 5.3%.

  12. The effect of horizontal resolution on simulation quality in the Community Atmospheric Model, CAM5.1

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

    Wehner, Michael F.; Reed, Kevin A.; Li, Fuyu; Prabhat, -; Bacmeister, Julio; Chen, Cheng -Ta; Paciorek, Christopher; Gleckler, Peter J.; Sperber, Kenneth R.; Collins, William D.; et al

    2014-11-05

    We present an analysis of version 5.1 of the Community Atmospheric Model (CAM5.1) at a high horizontal resolution. Intercomparison of this global model at approximately 0.25°, 1°, and 2° is presented for extreme daily precipitation as well as for a suite of seasonal mean fields. In general, extreme precipitation amounts are larger in high resolution than in lower-resolution configurations. In many but not all locations and/or seasons, extreme daily precipitation rates in the high-resolution configuration are higher and more realistic. The high-resolution configuration produces tropical cyclones up to category 5 on the Saffir-Simpson scale and a comparison to observations revealsmore » both realistic and unrealistic model behavior. In the absence of extensive model tuning at high resolution, simulation of many of the mean fields analyzed in this study is degraded compared to the tuned lower-resolution public released version of the model.« less

  13. Method and apparatus for drilling horizontal holes in geological structures from a vertical bore

    DOE Patents [OSTI]

    Summers, David A.; Barker, Clark R.; Keith, H. Dean

    1982-01-01

    This invention is directed to a method and apparatus for drilling horizontal holes in geological strata from a vertical position. The geological structures intended to be penetrated in this fashion are coal seams, as for in situ gasification or methane drainage, or in oil-bearing strata for increasing the flow rate from a pre-existing well. Other possible uses for this device might be for use in the leaching of uranium ore from underground deposits or for introducing horizontal channels for water and steam injections.

  14. Perihelion Global | Open Energy Information

    Open Energy Info (EERE)

    Perihelion Global Jump to: navigation, search Name: Perihelion Global Place: Port Jefferson, New York Zip: 11776 Product: A company focused on the acquisition, development and...

  15. ARM - Lesson Plans: Global Warming

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

    Global Warming Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global ...

  16. Compact fluorescent lamp using horizontal and vertical insulating septums and convective venting geometry

    DOE Patents [OSTI]

    Siminovitch, Michael

    1998-01-01

    A novel design for a compact fluorescent lamp, including a lamp geometry which will increase light output and efficacy of the lamp in a base down operating position by providing horizontal and vertical insulating septums positioned in the ballast compartment of the lamp to provide a cooler coldspot. Selective convective venting provides additional cooling of the ballast compartment.

  17. Compact fluorescent lamp using horizontal and vertical insulating septums and convective venting geometry

    DOE Patents [OSTI]

    Siminovitch, M.

    1998-02-10

    A novel design is described for a compact fluorescent lamp, including a lamp geometry which will increase light output and efficacy of the lamp in a base down operating position by providing horizontal and vertical insulating septums positioned in the ballast compartment of the lamp to provide a cooler coldspot. Selective convective venting provides additional cooling of the ballast compartment. 9 figs.

  18. Low-drag electrical-contact arrangement for maintaining continuity between horizontally movable members

    DOE Patents [OSTI]

    Brown, R.J.; Gerth, H.L.; Robinson, S.C.

    1981-01-23

    This invention is a low-drag electrical contact arrangement for establishing continuity between upper and lower spaced members which are subject to relative horizontal movement. In one aspect, the invention comprises an electrical commutating arrangement which includes a horizontally disposed linear electrical commutator. A horizontally movable electrically conductive pedestal is positioned below the commutator and defines a clearance therewith. The pedestal is formed with a cavity confronting the commutator. In the cavity is a bead of electrical conductive liquid, the bead being characterized by an upwardly convex meniscus portion which extends across the clearance and contacts the commutator. The surface tension of the bead is sufficient to maintain the bead intact when the commutator and pedestal are displaced horizontally at speeds from zero to at least twelve inches a minute. This arrangement provides a significant advance in highly precise machining processes, such as diamond-turning, where precision is limited by the drag imposed by conventional commutators of the carbon-brush type.

  19. Low-drag electrical contact arrangement for maintaining continuity between horizontally movable members

    DOE Patents [OSTI]

    Brown, R. Jack; Gerth, Howard L.; Robinson, Samuel C.

    1982-01-01

    This invention is a low-drag electrical contact arrangement for establishing continuity between upper and lower spaced members which are subject to relative horizontal movement. In one aspect, the invention comprises an electrical commutating arrangement which includes a horizontally disposed linear electrical commutator. A horizontally movable electrically conductive pedestal is positioned below the commutator and defines a clearance therewith. The pedestal is formed with a cavity confronting the commutator. In the cavity is a bead of electrical conductive liquid, the bead being characterized by an upwardly convex meniscus portion which extends across the clearance and contacts the commutator. The surface tension of the bead is sufficient to maintain the bead intact when the commutator and pedestal are displaced horizontally at speeds from zero to at least twelve inches a minute. This arrangement provides a significant advance in highly precise machining processes, such as diamond-turning, where precision is limited by the drag imposed by conventional commutators of the carbon-brush type.

  20. Timeline | GE Global Research

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

    Global Research Over Time From our earliest days, we've been changing the landscape in commercial science and technology. Explore our inventions' evolution. Home > Global Research Over Time 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) Warning: You must have JavaScript enabled in your browser in order to use this

  1. Global Insight Energy Group

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

    Outlook Mary Novak Managing Director IHS Global Insight Copyright © 2010 IHS Global Insight, Inc. Overview: Energy Sector Transformation Underway * The recession has hit energy demand hard, and aggregate energy demand is not expected to return to 2007 levels until 2018. * Oil and natural gas prices will both rise over the long-term, but the price trends will diverge with natural gas prices rising slowly due to the development of shale gas. * This forecast does not include a GHG cap-and-trade

  2. Global Scratch Gets an Upgrade

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

    Global Scratch Gets an Upgrade Global Scratch Gets an Upgrade Improvements Will Include Higher Data Output Rates, Connection to PDSF October 29, 2013 The most used file system at the National Energy Research Scientific Computing Center (NERSC)-global scratch-just got an upgrade. As a result, some users may see their data output to global scratch reach up to 80 gigabytes per second. Although users will probably not see their 20-terabyte storage quotas increase, the upgrade ensures that global

  3. Global decarbonization strategies

    SciTech Connect (OSTI)

    Messner, S.

    1996-12-31

    The presentation covers a brief summary of the research activities of the Environmentally Compatible Energy Strategies Project (ECS) at IIASA. The overall research focuses on long-term global energy development and emissions of greenhouse gases (GHG). The ultimate goal is to analyze strategies that achieve decarbonization of global energy systems during the next century. The specific activities range from mitigation of GHG emissions to an integrated assessment of climate change. One focal point is the GHG mitigation technology inventory CO{sub 2}DB, which presently covers approximately 1,400 technologies related to energy and the greenhouse effect. Another integral part is the development of global energy and emissions scenarios, an effort involving a number of formal models to assess the implications. A large number of global scenarios for the next century has been developed, that could be grouped into three families. All of them include energy efficiency improvements and some degree of decarbonization in the world. They are based on different economic and technological development trajectories, and their emissions range from very high to a stabilization of atmospheric carbon dioxide emissions. The presentation will outline the salient characteristics of the three scenario families and provide some regional implications of these alternative futures.

  4. A new approach for the determinination of horizontal wind direction fluctuations

    SciTech Connect (OSTI)

    Ibarra, J.I.

    1995-09-01

    A new method to determine horizontal wind direction fluctuations {sigma}{sub {theta}} is presented based on the hypothesis of a Gaussian distribution of wind direction that gradually moves to a circular, uniform distribution under near-calm conditions. A theoretical formulation for {sigma}{sub {theta}}, the persistence of wind and the total horizontal standard deviation {sigma} is provided and supported by experimental observations, both in a complex terrain valley site and in an open grassland spot in Spain. Comparisons of the proposed model with observations yielded a fairly good agreement, making the theoretical functions a straightforward procedure for use in atmospheric dispersion calculations. The method also provides insights on either the residual diffusivity in near-calm conditions or the maximal observable standard deviation. 13 refs., 5 figs., 1 tab.

  5. Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance

    SciTech Connect (OSTI)

    Kelkar, Mohan; Liner, Chris; Kerr, Dennis

    1999-10-15

    This final report describes the progress during the six year of the project on ''Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance.'' This report is funded under the Department of Energy's (DOE's) Class I program which is targeted towards improving the reservoir performance of mature oil fields located in fluvially-dominated deltaic deposits. The project involves using an integrated approach to characterize the reservoir followed by drilling of horizontal injection wells to improve production performance. The project was divided into two budget periods. In the first budget period, many modern technologies were used to develop a detailed reservoir management plan; whereas, in the second budget period, conventional data was used to develop a reservoir management plan. The idea was to determine the cost effectiveness of various technologies in improving the performance of mature oil fields.

  6. Moving | GE Global Research

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

    Moving We're always working on planes, trains and automobiles-and specialized ways to move people and products efficiently and sustainably. Home > Impact > Moving Green Skies of Brazil Improves Airspace Efficiency It's not uncommon for planes approaching some of Brazil's busiest airports to travel miles out of the way while pilots wait... Read More » Reducing Emissions in the New Tier 4 Locomotive GE Global Research Internal Combustion lab manager Omowoleola "Wole" Akinyemi

  7. Global Bioenergy Partnership Meetings

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy’s Bioenergy Technologies Office Sustainability Technology Manager Kristen Johnson represented the Office at the Global Bioenergy Partnership (GBEP) Meetings in Rome, Italy. The event included three meetings, the 7th annual GBEP Working Group on Capacity Building, the 13th annual Task Force on Sustainability to discuss the experiences with the GBEP Sustainability Indicators for Bioenergy, and the 18th annual GBEP Steering Committee to discuss strategies for sustainable bioenergy development and deployment.

  8. Global Climate & Energy

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

    Sandia, DOE Energy Storage Program, GeneSiC Semiconductor, U.S. Army ARDEC: Ultra-High-Voltage Silicon Carbide Thyristors Capabilities, Distribution Grid Integration, Energy, Energy Efficiency, Energy Storage Systems, Global Climate & Energy, Grid Integration, Infrastructure Security, Materials Science, Partnership, Research & Capabilities, SMART Grid, Systems Engineering, Transmission Grid Integration Sandia, DOE Energy Storage Program, GeneSiC Semiconductor, U.S. Army ARDEC:

  9. Global Climate & Energy

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

    Sandians Published in American Chemical Society's Environmental Science & Technology Analysis, Climate, Energy, Global Climate & Energy, Modeling, Modeling & Analysis, News, News & Events, Systems Analysis, Water Security Sandians Published in American Chemical Society's Environmental Science & Technology Electricity use by water service sector and county. Shown are electricity use by (a) large-scale conveyance, (b) groundwater irrigation pumping, (c) surface water irrigation

  10. Curing | GE Global Research

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

    Curing We're pioneering medical developments, from robotic healthcare assistants to diagnostic tools and specialized, globally deployed gear. Home > Impact > Curing Hospital Management Is Evolving to Reduce Wait Times With hospitals busier than ever and not enough staff to meet the higher demand, going to the hospital can be a series of waiting... Read More » Making High-Value Imaging More Accessible Around the World Advancements in healthcare are creating a paradigm shift in how we

  11. Global climate feedbacks

    SciTech Connect (OSTI)

    Manowitz, B.

    1990-10-01

    The important physical, chemical, and biological events that affect global climate change occur on a mesoscale -- requiring high spatial resolution for their analysis. The Department of Energy has formulated two major initiatives under the US Global Change Program: ARM (Atmospheric Radiation Measurements), and CHAMMP (Computer Hardware Advanced Mathematics and Model Physics). ARM is designed to use ground and air-craft based observations to document profiles of atmospheric composition, clouds, and radiative fluxes. With research and models of important physical processes, ARM will delineate the relationships between trace gases, aerosol and cloud structure, and radiative transfer in the atmosphere, and will improve the parameterization of global circulation models. The present GCMs do not model important feedbacks, including those from clouds, oceans, and land processes. The purpose of this workshop is to identify such potential feedbacks, to evaluate the uncertainties in the feedback processes (and, if possible, to parameterize the feedback processes so that they can be treated in a GCM), and to recommend research programs that will reduce the uncertainties in important feedback processes. Individual reports are processed separately for the data bases.

  12. Global Energy Futures Model

    Energy Science and Technology Software Center (OSTI)

    2004-01-01

    The Global Energy Futures Model (GEFM) is a demand-based, gross domestic product (GDP)-driven, dynamic simulation tool that provides an integrated framework to model key aspects of energy, nuclear-materials storage and disposition, environmental effluents from fossil and non fossil energy and global nuclear-materials management. Based entirely on public source data, it links oil, natural gas, coal, nuclear and renewable energy dynamically to greenhouse-gas emissions and 13 other measures of environmental impact. It includes historical data frommore » 1990 to 2000, is benchmarked to the DOE/EIA/IEO 2002 [5] Reference Case for 2000 to 2020, and extrapolates energy demand through the year 2050. The GEFM is globally integrated, and breaks out five regions of the world: United States of America (USA), the Peoples Republic of China (China), the former Soviet Union (FSU), the Organization for Economic Cooperation and Development (OECD) nations excluding the USA (other industrialized countries), and the rest of the world (ROW) (essentially the developing world). The GEFM allows the user to examine a very wide range of what ir scenarios through 2050 and to view the potential effects across widely dispersed, but interrelated areas. The authors believe that this high-level learning tool will help to stimulate public policy debate on energy, environment, economic and national security issues.« less

  13. Termination for a superconducting power transmission line including a horizontal cryogenic bushing

    DOE Patents [OSTI]

    Minati, Kurt F.; Morgan, Gerry H.; McNerney, Andrew J.; Schauer, Felix

    1984-01-01

    A termination for a superconducting power transmission line is disclosed which is comprised of a standard air entrance insulated vertical bushing with an elbow, a horizontal cryogenic bushing linking the pressurized cryogenic cable environment to the ambient temperature bushing and a stress cone which terminates the cable outer shield and transforms the large radial voltage gradient in the cable dielectric into a much lower radial voltage gradient in the high density helium coolant at the cold end of the cryogenic bushing.

  14. Increased reserves through horizontal drilling in a mature waterflood, Long Beach unit, Wilmington Oil Field, California

    SciTech Connect (OSTI)

    Berman, B.H.

    1996-12-31

    Ranger Zone development started in 1965. A waterflood was initiated from the start using a staggered line-drive pattern. Infill drilling in the early 1980s and again in the 1990s revealed bypassed oil in the upper Ranger Fo sand. Detailed studies of the aerial extent of the remaining oil resulted in drilling 17 horizontal wells to recover these reserves. The Fo target sand thickness is 20 to 50 feet. Well courses are between 10 and 15 feet below the top of the Fo with lengths varying from 800 to 1,000 feet. The success of the Fo drilling program has prompted expansion of horizontal drilling into thin-bedded sand units. Well lengths have increased to between 1,500 and 1,800 feet with structural trend used to advantage. Where needed, probes are designed to penetrate the target sand before setting intermediate casing. The drilling program has been extended into bilateral horizontal completions. Geosteering with MWD/GR and a 2 MHz dual propagation resistivity tool is used to the casing point. In the completion interval, only the MWD/GR tool is used and a drillpipe conveyed E-log is run afterward to confirm expected resistivities. Despite the many well penetrations in the Ranger Zone, structural control is only fair. Accuracy of MWD data is generally low and geosteering is done by TVD log correlation. With a recovery factor of over 30 percent in Ranger West, from approximately 800 wells drilled in the last 30 years, the horizontal drilling program targeting bypassed reserves has brought new life to this mature reservoir.

  15. Increased reserves through horizontal drilling in a mature waterflood, Long Beach unit, Wilmington Oil Field, California

    SciTech Connect (OSTI)

    Berman, B.H. )

    1996-01-01

    Ranger Zone development started in 1965. A waterflood was initiated from the start using a staggered line-drive pattern. Infill drilling in the early 1980s and again in the 1990s revealed bypassed oil in the upper Ranger Fo sand. Detailed studies of the aerial extent of the remaining oil resulted in drilling 17 horizontal wells to recover these reserves. The Fo target sand thickness is 20 to 50 feet. Well courses are between 10 and 15 feet below the top of the Fo with lengths varying from 800 to 1,000 feet. The success of the Fo drilling program has prompted expansion of horizontal drilling into thin-bedded sand units. Well lengths have increased to between 1,500 and 1,800 feet with structural trend used to advantage. Where needed, probes are designed to penetrate the target sand before setting intermediate casing. The drilling program has been extended into bilateral horizontal completions. Geosteering with MWD/GR and a 2 MHz dual propagation resistivity tool is used to the casing point. In the completion interval, only the MWD/GR tool is used and a drillpipe conveyed E-log is run afterward to confirm expected resistivities. Despite the many well penetrations in the Ranger Zone, structural control is only fair. Accuracy of MWD data is generally low and geosteering is done by TVD log correlation. With a recovery factor of over 30 percent in Ranger West, from approximately 800 wells drilled in the last 30 years, the horizontal drilling program targeting bypassed reserves has brought new life to this mature reservoir.

  16. Horizontal cryogenic bushing for the termination of a superconducting power-transmission line

    DOE Patents [OSTI]

    Minati, K.F.; Morgan, G.H.; McNerney, A.J.; Schauer, F.

    1982-07-29

    A termination for a superconducting power transmission line is disclosed which is comprised of a standard air entrance insulated vertical bushing with an elbow, a horizontal cryogenic bushing linking the pressurized cryogenic cable environment to the ambient temperature bushing and a stress cone which terminated the cable outer shield and transforms the large radial voltage gradient in the cable dielectric into a much lower radial voltage gradient in the high density helium coolant at the cold end of the cryogenic bushing.

  17. High horizontal movements in longwall gate roads controlled by cable support systems

    SciTech Connect (OSTI)

    Dolinar, D.R.; Tadolini, S.C.; Blackwell, D.V.

    1996-12-01

    Controlling coal mine roofs subjected to high-horizontal stress conditions has always been difficult and uncertain. Traditional supports such as wooden cribs and posts, concrete donut cribs, and standing supports collapse and fail when the roof and floor move horizontally as mining progresses. The former U.S. Bureau of Mines (USBM) (currently the U.S. Department of Energy (DOE)), in cooperation with Western Fuels-Utah, Incorporated, conducted research to provide an alternative for traditional secondary support systems in a 3-entry gate road system subjected to high horizontal movements. The support system used in several other coal mine operations, consisted of internal high-strength galvanized resin-grouted cable supports. The system virtually eliminates the necessity for external crib, timber, or concrete supports. The support system consisted of 2.4 m (8 ft) full-column resin grouted bolts and 4.8 m (16 ft) long cable supports installed in conjunction with wire mesh and {open_quotes}Monster-Mats.{close_quotes} Cable loading and roof deformations were monitored to evaluate the behavior of the immediate and main roofs during first and second panel extractions. Additionally, cable trusses were installed on the longwall headgate to protect the coal conveyance system from roof and pillar falls created by the formation of cutters and gutters. The test results indicated that the designed support system successfully maintained the roof during the extraction of two longwall panels and dramatically reduced the cost of secondary support. This paper describes the theory of high-horizontal roof movements, the advantages of vertical cable supports and cable trusses, and presents the roof and cable measurements made to assess the support performance during longwall retreat mining.

  18. Global interrupt and barrier networks

    DOE Patents [OSTI]

    Blumrich, Matthias A. (Ridgefield, CT); Chen, Dong (Croton-On-Hudson, NY); Coteus, Paul W. (Yorktown Heights, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Kopcsay, Gerard V. (Yorktown Heights, NY); Steinmacher-Burow, Burkhard D. (Mount Kisco, NY); Takken, Todd E. (Mount Kisco, NY)

    2008-10-28

    A system and method for generating global asynchronous signals in a computing structure. Particularly, a global interrupt and barrier network is implemented that implements logic for generating global interrupt and barrier signals for controlling global asynchronous operations performed by processing elements at selected processing nodes of a computing structure in accordance with a processing algorithm; and includes the physical interconnecting of the processing nodes for communicating the global interrupt and barrier signals to the elements via low-latency paths. The global asynchronous signals respectively initiate interrupt and barrier operations at the processing nodes at times selected for optimizing performance of the processing algorithms. In one embodiment, the global interrupt and barrier network is implemented in a scalable, massively parallel supercomputing device structure comprising a plurality of processing nodes interconnected by multiple independent networks, with each node including one or more processing elements for performing computation or communication activity as required when performing parallel algorithm operations. One multiple independent network includes a global tree network for enabling high-speed global tree communications among global tree network nodes or sub-trees thereof. The global interrupt and barrier network may operate in parallel with the global tree network for providing global asynchronous sideband signals.

  19. Environmental Measurement-While-Drilling System and Horizontal Directional Drilling Technology Demonstration, Hanford Site

    SciTech Connect (OSTI)

    Williams, C.V.; Lockwood, G.J.; Normann, R.A.; Myers, D.A.; Gardner, M.G.; Williamson, T.; Huffman, J.

    1999-06-01

    The Environmental Measurement-While-Drilling (EMWD) system and Horizontal Directional Drilling (HDD) were successfully demonstrated at the Mock Tank Leak Simulation Site and the Drilling Technology Test Site, Hanford, Washington. The use of directional drilling offers an alternative to vertical drilling site characterization. Directional drilling can develop a borehole under a structure, such as a waste tank, from an angled entry and leveling off to horizontal at the desired depth. The EMWD system represents an innovative blend of new and existing technology that provides the capability of producing real-time environmental and drill bit data during drilling operations. The technology demonstration consisted of the development of one borehole under a mock waste tank at a depth of {approximately} {minus}8 m ({minus}27 ft.), following a predetermined drill path, tracking the drill path to within a radius of {approximately}1.5 m (5 ft.), and monitoring for zones of radiological activity using the EMWD system. The purpose of the second borehole was to demonstrate the capability of drilling to a depth of {approximately} {minus}21 m ({minus}70 ft.), the depth needed to obtain access under the Hanford waste tanks, and continue drilling horizontally. This report presents information on the HDD and EMWD technologies, demonstration design, results of the demonstrations, and lessons learned.

  20. Method for explosive expansion toward horizontal free faces for forming an in situ oil shale retort

    DOE Patents [OSTI]

    Ricketts, Thomas E.

    1980-01-01

    Formation is excavated from within a retort site in formation containing oil shale for forming a plurality of vertically spaced apart voids extending horizontally across different levels of the retort site, leaving a separate zone of unfragmented formation between each pair of adjacent voids. Explosive is placed in each zone, and such explosive is detonated in a single round for forming an in situ retort containing a fragmented permeable mass of formation particles containing oil shale. The same amount of formation is explosively expanded upwardly and downwardly toward each void. A horizontal void excavated at a production level has a smaller horizontal cross-sectional area than a void excavated at a lower level of the retort site immediately above the production level void. Explosive in a first group of vertical blast holes is detonated for explosively expanding formation downwardly toward the lower void, and explosive in a second group of vertical blast holes is detonated in the same round for explosively expanding formation upwardly toward the lower void and downwardly toward the production level void for forming a generally T-shaped bottom of the fragmented mass.

  1. Integrated approach towards the application of horizontal wells to improve waterflooding performance. Annual report

    SciTech Connect (OSTI)

    Kelkar, M.; Liner, C.; Kerr, D.

    1995-05-01

    This annual report describes the progress during the second year of the project on Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance. This project is funded under the Department of Energy`s Class I program which is targeted towards improving the reservoir performance of mature oil fields located in fluvial-dominated deltaic deposits. The project involves an integrated approach to characterize the reservoir followed by the drilling of horizontal injection wells to improve production performance. The type of data we have integrated include cross bore hole seismic surveys, geological interpretation based on logs and cores, and engineering information. This report covers the second phase of the project which includes a detailed reservoir description of the field by integrating all the available information, followed by flow simulation of the Self Unit under various operating conditions. Based on an examination of the various operating parameters, we observed that the best possible solution to improve the Self Unit performance is to recomplete and stimulate most of the wells followed by an increase in the water injection rate. Drilling of horizontal injection well, although helpful in improving the performance, was not found to be economically feasible. The proposed reservoir management plan will be implemented shortly.

  2. Endeavor Global | Open Energy Information

    Open Energy Info (EERE)

    :"","group":"","inlineLabel":"","visitedicon":"" Hide Map References: Endeavor Global Web Site1 This article is a stub. You can help OpenEI by expanding it. Endeavor Global is...

  3. Laser Manufacturing | GE Global Research

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

    Laser Manufacturing at GE Global Research Click to email this to a friend (Opens in new ... Laser Manufacturing at GE Global Research Learn how laser sintering, an additive laser ...

  4. ARM - What Causes Global Warming?

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

    ThinkersWhat Causes Global Warming? Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans What Causes Global Warming? What is the basis for the predictions concerning global warming? There are several gases in the air, collectively called greenhouse gases, that trap the infrared radiation emitted

  5. Global carbon budget 2014

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

    Le Quéré, C.; Moriarty, R.; Andrew, R. M.; Peters, G. P.; Ciais, P.; Friedlingstein, P.; Jones, S. D.; Sitch, S.; Tans, P.; Arneth, A.; et al

    2015-05-08

    Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere is important to better understand the global carbon cycle, support the development of climate policies, and project future climate change. Here we describe data sets and a methodology to quantify all major components of the global carbon budget, including their uncertainties, based on the combination of a range of data, algorithms, statistics, and model estimates and their interpretation by a broad scientific community. We discuss changes compared to previous estimates, consistency within and among components, alongside methodology and data limitations. CO2 emissionsmore » from fossil fuel combustion and cement production (EFF) are based on energy statistics and cement production data, respectively, while emissions from land-use change (ELUC), mainly deforestation, are based on combined evidence from land-cover-change data, fire activity associated with deforestation, and models. The global atmospheric CO2 concentration is measured directly and its rate of growth (GATM) is computed from the annual changes in concentration. The mean ocean CO2 sink (SOCEAN) is based on observations from the 1990s, while the annual anomalies and trends are estimated with ocean models. The variability in SOCEAN is evaluated with data products based on surveys of ocean CO2 measurements. The global residual terrestrial CO2 sink (SLAND) is estimated by the difference of the other terms of the global carbon budget and compared to results of independent dynamic global vegetation models forced by observed climate, CO2, and land-cover-change (some including nitrogen–carbon interactions). We compare the mean land and ocean fluxes and their variability to estimates from three atmospheric inverse methods for three broad latitude bands. All uncertainties are reported as ±1σ;, reflecting the current capacity to characterise the annual estimates of each component of the global carbon budget. For the last decade available (2004–2013), EFF was 8.9 ± 0.4 GtC yr⁻¹,ELUC 0.9 ± 0.5 GtC yr⁻¹, GATM 4.3 ± 0.1 GtC yr⁻¹, SOCEAN 2.6 ± 0.5 GtC yr⁻¹, and SLAND 2.9 ± 0.8 GtC yr⁻¹. For year 2013 alone, EFF grew to 9.9 ± 0.5 GtC yr⁻¹, 2.3% above 2012, continuing the growth trend in these emissions, ELUC was 0.9 ± 0.5 GtC yr⁻¹, GATM was 5.4 ± 0.2 GtC yr⁻¹, SOCEAN was 2.9 ± 0.5 GtC yr⁻¹, and SLAND was 2.5 ± 0.9 GtC yr⁻¹. GATM was high in 2013, reflecting a steady increase in EFF and smaller and opposite changes between SOCEAN and SLAND compared to the past decade (2004–2013). The global atmospheric CO2 concentration reached 395.31 ± 0.10 ppm averaged over 2013. We estimate that EFF will increase by 2.5% (1.3–3.5%) to 10.1 ± 0.6 GtC in 2014 (37.0 ± 2.2 GtCO2 yr⁻¹), 65% above emissions in 1990, based on projections of world gross domestic product and recent changes in the carbon intensity of the global economy. From this projection of EFF and assumed constant ELUC for 2014, cumulative emissions of CO2 will reach about 545 ± 55 GtC (2000 ± 200 GtCO2) for 1870–2014, about 75% from EFF and 25% from ELUC. This paper documents changes in the methods and data sets used in this new carbon budget compared with previous publications of this living data set (Le Quéré et al., 2013, 2014). All observations presented here can be downloaded from the Carbon Dioxide Information Analysis Center (doi:10.3334/CDIAC/GCP_2014).« less

  6. The Global Energy Challenge

    ScienceCinema (OSTI)

    Crabtree, George

    2010-01-08

    The expected doubling of global energy demand by 2050 challenges our traditional patterns of energy production, distribution and use.   The continued use of fossil fuels raises concerns about supply, security, environment and climate.  New routes are needed for the efficient conversion of energy from chemical fuel, sunlight, and heat to electricity or hydrogen as an energy carrier and finally to end uses like transportation, lighting, and heating. Opportunities for efficient new energy conversion routes based on nanoscale materials will be presented, with emphasis on the sustainable energy technologies they enable.

  7. Global warming from HFC

    SciTech Connect (OSTI)

    Johnson, E.

    1998-11-01

    Using a variety of public sources, a computer model of hydrofluorocarbon (HFC) refrigerant emissions in the UK has been developed. This model has been used to estimate and project emissions in 2010 under three types of scenarios: (1) business as usual; (2) voluntary agreements to reduce refrigerant leakage; and (3) comprehensive regulations to reduce refrigerant leakage. This resulting forecast is that UK emissions of HFC refrigerants in 2010 will account for 2% to 4% of the UK`s 1990 baseline global warming contribution.

  8. Global carbon budget 2014

    SciTech Connect (OSTI)

    Le Quéré, C.; Moriarty, R.; Andrew, R. M.; Peters, G. P.; Ciais, P.; Friedlingstein, P.; Jones, S. D.; Sitch, S.; Tans, P.; Arneth, A.; Boden, T. A.; Bopp, L.; Bozec, Y.; Canadell, J. G.; Chini, L. P.; Chevallier, F.; Cosca, C. E.; Harris, I.; Hoppema, M.; Houghton, R. A.; House, J. I.; Jain, A. K.; Johannessen, T.; Kato, E.; Keeling, R. F.; Kitidis, V.; Klein Goldewijk, K.; Koven, C.; Landa, C. S.; Landschützer, P.; Lenton, A.; Lima, I. D.; Marland, G.; Mathis, J. T.; Metzl, N.; Nojiri, Y.; Olsen, A.; Ono, T.; Peng, S.; Peters, W.; Pfeil, B.; Poulter, B.; Raupach, M. R.; Regnier, P.; Rödenbeck, C.; Saito, S.; Salisbury, J. E.; Schuster, U.; Schwinger, J.; Séférian, R.; Segschneider, J.; Steinhoff, T.; Stocker, B. D.; Sutton, A. J.; Takahashi, T.; Tilbrook, B.; van der Werf, G. R.; Viovy, N.; Wang, Y.-P.; Wanninkhof, R.; Wiltshire, A.; Zeng, N.

    2015-05-08

    Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere is important to better understand the global carbon cycle, support the development of climate policies, and project future climate change. Here we describe data sets and a methodology to quantify all major components of the global carbon budget, including their uncertainties, based on the combination of a range of data, algorithms, statistics, and model estimates and their interpretation by a broad scientific community. We discuss changes compared to previous estimates, consistency within and among components, alongside methodology and data limitations. CO2 emissions from fossil fuel combustion and cement production (EFF) are based on energy statistics and cement production data, respectively, while emissions from land-use change (ELUC), mainly deforestation, are based on combined evidence from land-cover-change data, fire activity associated with deforestation, and models. The global atmospheric CO2 concentration is measured directly and its rate of growth (GATM) is computed from the annual changes in concentration. The mean ocean CO2 sink (SOCEAN) is based on observations from the 1990s, while the annual anomalies and trends are estimated with ocean models. The variability in SOCEAN is evaluated with data products based on surveys of ocean CO2 measurements. The global residual terrestrial CO2 sink (SLAND) is estimated by the difference of the other terms of the global carbon budget and compared to results of independent dynamic global vegetation models forced by observed climate, CO2, and land-cover-change (some including nitrogen–carbon interactions). We compare the mean land and ocean fluxes and their variability to estimates from three atmospheric inverse methods for three broad latitude bands. All uncertainties are reported as ±1σ;, reflecting the current capacity to characterise the annual estimates of each component of the global carbon budget. For the last decade available (2004–2013), EFF was 8.9 ± 0.4 GtC yr⁻¹,ELUC 0.9 ± 0.5 GtC yr⁻¹, GATM 4.3 ± 0.1 GtC yr⁻¹, SOCEAN 2.6 ± 0.5 GtC yr⁻¹, and SLAND 2.9 ± 0.8 GtC yr⁻¹. For year 2013 alone, EFF grew to 9.9 ± 0.5 GtC yr⁻¹, 2.3% above 2012, continuing the growth trend in these emissions, ELUC was 0.9 ± 0.5 GtC yr⁻¹, GATM was 5.4 ± 0.2 GtC yr⁻¹, SOCEAN was 2.9 ± 0.5 GtC yr⁻¹, and SLAND was 2.5 ± 0.9 GtC yr⁻¹. GATM was high in 2013, reflecting a steady increase in EFF and smaller and opposite changes between SOCEAN and SLAND compared to the past decade (2004–2013). The global atmospheric CO2 concentration reached 395.31 ± 0.10 ppm averaged over 2013. We estimate that EFF will increase by 2.5% (1.3–3.5%) to 10.1 ± 0.6 GtC in 2014 (37.0 ± 2.2 GtCO2 yr⁻¹), 65% above emissions in 1990, based on projections of world gross domestic product and recent changes in the carbon intensity of the global economy. From this projection of EFF and assumed constant ELUC for 2014, cumulative emissions of CO2 will reach about 545 ± 55 GtC (2000 ± 200 GtCO2) for 1870–2014, about 75% from EFF and 25% from ELUC. This paper documents changes in the methods and data sets used in this new carbon budget compared with previous publications of this living data set (Le Quéré et al., 2013, 2014). All observations presented here can be downloaded from the Carbon Dioxide Information Analysis Center (doi:10.3334/CDIAC/GCP_2014).

  9. A Probabilistic Approach to Site-Specific, Hazard-Consistent Vertical-to-Horizontal Spectral Ratio Model

    Broader source: Energy.gov [DOE]

    A Probabilistic Approach to Site-Specific, Hazard-Consistent Vertical-to-Horizontal Spectral Ratio Model Rizzo Associates Presented at U.S. DOE Natural Phenomena Hazards Meeting October 21, 2014

  10. Horizontal Wells to Enhance Production in the Bottle Rock Field - Final Report - 09/30/2000 - 02/01/2001

    SciTech Connect (OSTI)

    Cohen, J. H.

    2001-02-26

    This report describes the work that was done to prepare the Phase II proposal for an enhanced geothermal system based on the use of horizontal well to increase production of reservoir fluids from geothermal wells.

  11. Global tree network for computing structures enabling global processing operations

    DOE Patents [OSTI]

    Blumrich; Matthias A.; Chen, Dong; Coteus, Paul W.; Gara, Alan G.; Giampapa, Mark E.; Heidelberger, Philip; Hoenicke, Dirk; Steinmacher-Burow, Burkhard D.; Takken, Todd E.; Vranas, Pavlos M.

    2010-01-19

    A system and method for enabling high-speed, low-latency global tree network communications among processing nodes interconnected according to a tree network structure. The global tree network enables collective reduction operations to be performed during parallel algorithm operations executing in a computer structure having a plurality of the interconnected processing nodes. Router devices are included that interconnect the nodes of the tree via links to facilitate performance of low-latency global processing operations at nodes of the virtual tree and sub-tree structures. The global operations performed include one or more of: broadcast operations downstream from a root node to leaf nodes of a virtual tree, reduction operations upstream from leaf nodes to the root node in the virtual tree, and point-to-point message passing from any node to the root node. The global tree network is configurable to provide global barrier and interrupt functionality in asynchronous or synchronized manner, and, is physically and logically partitionable.

  12. Security camera resolution measurements: Horizontal TV lines versus modulation transfer function measurements.

    SciTech Connect (OSTI)

    Birch, Gabriel Carisle; Griffin, John Clark

    2015-01-01

    The horizontal television lines (HTVL) metric has been the primary quantity used by division 6000 related to camera resolution for high consequence security systems. This document shows HTVL measurements are fundamen- tally insufficient as a metric to determine camera resolution, and propose a quantitative, standards based methodology by measuring the camera system modulation transfer function (MTF), the most common and accepted metric of res- olution in the optical science community. Because HTVL calculations are easily misinterpreted or poorly defined, we present several scenarios in which HTVL is frequently reported, and discuss their problems. The MTF metric is discussed, and scenarios are presented with calculations showing the application of such a metric.

  13. Horizontal slim-hole drilling with coiled tubing; An operator's experience

    SciTech Connect (OSTI)

    Ramos, A.B. Jr.; Faahel, R.A.; Chaffin, M.G.; Pulis, K.H. )

    1992-10-01

    What is believed to be the first horizontal well drilled with directionally controlled coiled tubing recently was completed in the Austin Chalk formation. an existing well was sidetracked out of 4 1/2-in. casing with a conventional whipstock. an average build rate of 15[degrees]/100 ft was achieved in the curve, and a 1,458-ft vertical section was drilled with 2-in. coiled tubing, downhole mud motors, wireline steering tools, a mechanical downhole orienting tool, and 3 7/8-in. bits. This paper discusses the orienting and directional tools and techniques developed during this operation. It also describes improvements made for the second well.

  14. Global Research on On The Verge | GE Global Research

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

    Department of Energy Global Nuclear Energy Partnership Triples in Size to 16 Members Global Nuclear Energy Partnership Triples in Size to 16 Members September 16, 2007 - 2:33pm Addthis Nations Sign On to International Cooperation for Safe Expansion of Nuclear Energy Worldwide VIENNA, AUSTRIA - U.S. Secretary of Energy Samuel W. Bodman and senior international officials from 16 nations today agreed to increase international nuclear energy cooperation through the Global Nuclear Energy

  15. Geoscience Australia Continuous Global Positioning System (GPS...

    Office of Scientific and Technical Information (OSTI)

    System Darwin, Australia, ARM site Geoscience Australia Global Navigation Satellite System Global Positioning System Receiver Independent Exchange Format South Pacific ...

  16. Principal Associate Director - Global Security

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

    Principal Associate Director - Global Security As Principal Associate Director for Global Security, Terry Wallace leads Laboratory programs with special focus on developing and applying the scientific and engineering capabilities to address complex national and global security threats. Contact Operator Los Alamos National Laboratory (505) 667-5061 Wallace's expertise is forensic seismology, a highly specialized discipline focusing on detection and quantification of nuclear tests. Terry C.

  17. ARM - What Causes Global Warming?

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

    BeginnersWhat Causes Global Warming? Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans What Causes Global Warming? On earth we get energy from the sun's light. As you know, it gets hot outside if the sun is shining brightly on a summer day. The reason it warms up is because the earth is

  18. ARM - What is Global Warming?

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

    is Global Warming? Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans What is Global Warming? Our earth's average temperature stays pretty much the same from year to year. Sometimes it gets very cold in the winter and very hot in the summer where you live. And some years may be a little hotter

  19. ARM - What is Global Warming?

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

    is Global Warming? Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans What is Global Warming? The surface temperature of each of the planets in our solar system depends on a process called the heat budget. This budget, like any other type of budget, remains balanced if the amount (of energy)

  20. Report on full-scale horizontal cable tray fire tests, FY 1988

    SciTech Connect (OSTI)

    Riches, W.M.

    1988-09-01

    In recent years, there has been much discussion throughout industry and various governmental and fire protection agencies relative to the flammability and fire propagation characteristics of electrical cables in open cable trays. It has been acknowledged that under actual fire conditions, in the presence of other combustibles, electrical cable insulation can contribute to combustible fire loading and toxicity of smoke generation. Considerable research has been conducted on vertical cable tray fire propagation, mostly under small scale laboratory conditions. In July 1987, the Fermi National Accelerator Laboratory initiated a program of full scale, horizontal cable tray fire tests, in the absence of other building combustible loading, to determine the flammability and rate of horizontal fire propagation in cable tray configurations and cable mixes typical of those existing in underground tunnel enclosures and support buildings at the Laboratory. The series of tests addressed the effects of ventilation rates and cable tray fill, fire fighting techniques, and effectiveness and value of automatic sprinklers, smoke detection and cable coating fire barriers in detecting, controlling or extinguishing a cable tray fire. This report includes a description of the series of fire tests completed in June 1988, as well as conclusions reached from the test results.

  1. Advanced Horizontal Well Recirculation Systems for Geothermal Energy Recovery in Sedimentary and Crystalline Formations

    SciTech Connect (OSTI)

    Bruno, Mike S.; Detwiler, Russell L.; Lao, Kang; Serajian, Vahid; Elkhoury, Jean; Diessl, Julia; White, Nicky

    2012-12-13

    There is increased recognition that geothermal energy resources are more widespread than previously thought, with potential for providing a significant amount of sustainable clean energy worldwide. Recent advances in drilling, completion, and production technology from the oil and gas industry can now be applied to unlock vast new geothermal resources, with some estimates for potential electricity generation from geothermal energy now on the order of 2 million megawatts. The primary objectives of this DOE research effort are to develop and document optimum design configurations and operating practices to produce geothermal power from hot permeable sedimentary and crystalline formations using advanced horizontal well recirculation systems. During Phase I of this research project Terralog Technologies USA and The University of California, Irvine (UCI), have completed preliminary investigations and documentation of advanced design concepts for paired horizontal well recirculation systems, optimally configured for geothermal energy recovery in permeable sedimentary and crystalline formations of varying structure and material properties. We have also identified significant geologic resources appropriate for application of such technology. The main challenge for such recirculation systems is to optimize both the design configuration and the operating practices for cost-effective geothermal energy recovery. These will be strongly influenced by sedimentary formation properties, including thickness and dip, temperature, thermal conductivity, heat capacity, permeability, and porosity; and by working fluid properties.

  2. Integrated approach towards the Application of Horizontal Wells to Improve Waterflooding Performance. Annual report

    SciTech Connect (OSTI)

    Kelkar, M.; Liner, C.; Kerr, D.

    1994-06-01

    This annual report describes the progress during the first year of the project on Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance. This project is funded under the Department of Energy`s Class I program which is targeted towards improving the reservoir performance of mature oil fields located in fluvial-dominated deltaic deposits. The project involves an integrated approach to characterize the reservoir followed by drilling of horizontal injection wells to improve production performance. The type of data the authors intend to integrate includes cross bore hole seismic surveys, geological interpretation based on logs and cores, and engineering information. This report covers the first phase of the project which includes a detailed reservoir description of the field based on the available information, followed by flow simulation of the Self Unit to compare the simulated result with the historical performance. Based on the simulated results, a vertical test well was drilled to validate this reservoir description. The well will also be used as a source well for a cross bore hole seismic survey. This report discusses the related geophysical, geological and engineering activities leading to the drilling of the vertical test well. The validation phase and the collection of the cross bore hole survey has just begun, and the results will be presented in the next annual report.

  3. Going Global: Tight Oil Production

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

    ... Thin target zone Disconnected target zones Controlled fractures GOING GLOBAL: TIGHT OIL PRODUCTION Tight Oil has Significant Energy Security Impacts Tight oil production growth ...

  4. Aviation Technology | GE Global Research

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

    ... Read More GE Scientists Demonstrate Promising Anti-icing Nano Surfaces GE Global Research today presented new research findings on its nanotextured anti-icing surfaces. In ...

  5. Enlighten Your Research Global Program

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

    Enlighten Your Research Global Program Science Engagement Move your data Programs & Workshops CrossConnects Workshop Series Operating Innovative Networks Workshop Series Enlighten...

  6. Aviation Technology | GE Global Research

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

    Read More Ceramic Matrix Composites Improve Engine Efficiency Ceramic matrix composites (CMCs) are a breakthrough materials technology for jet engines that started at our Global ...

  7. Office of Global Material Security

    National Nuclear Security Administration (NNSA)

    at Wilton Park, United Kingdom, on the growing challenge of securing the global maritime supply chain. In total, 55 participants from 15 countries and 9 international...

  8. Recovery of bypassed oil in the Dundee Formation using horizontal drains. Quarterly report, October 1 - December 31, 1996

    SciTech Connect (OSTI)

    Wood, J.R.

    1997-01-01

    The principal objective of this project is to demonstrate the feasibility and economic success of producing oil from abandoned or nearly abandoned fields in the Dundee Formation of Central Michigan using horizontal drilling technology. A site for a horizontal well was selected in Crystal Field, a nearly-abandoned Dundee oil field in Michigan. This field had produced over 8 million barrels of oil, mostly in the 1930`s and 1940`s. At the height of development, Crystal Field produced from 193 wells, but by 1995, only seven producing wells remained, each producing less than 10 bbls/day. A horizontal well was drilled as a field demonstration pilot, funded through this DOE project, and was successful. It has produced over 37,000 bbls of oil as of December 31, 1996 at sustained rate of {approximately}100 bbls/day. At a nominal wellhead price of $20/bbl, this well has made about $750,000 and is still going strong. Two additional horizontal wells have just been completed and are on test. Core and logs from the Dundee interval were recovered from a vertical borehole at the same surface location. The horizontal well was brought on production at a rate of 100 bbls/day and is probably capable of producing at a higher rate. The addition of several horizontal wells, similar to the demonstration well, will likely add another 2 million bbls (or more) to the cumulative production of the field over the next few years. The presence of untapped oil in this Dundee field was dramatically demonstrated and the favorable economics were made clearly evident. If other abandoned Dundee fields are re-developed in a similar manner, the additional oil produced could exceed 80 million barrels. Horizontal drilling will likely revolutionize the development of old carbonate fields such as those in the Dundee of Michigan.

  9. (Managing the global environment)

    SciTech Connect (OSTI)

    Rayner, S.F.

    1989-10-03

    The conference was stimulated by concern that policy makers increasingly have to make environmental management decisions in the absence of solidly established scientific consensus about ecological processes and the consequences of human actions. Often, as in the case of climate change, some decisions may have to be made in the absence of information that is desirable but may not be available for years to come, if ever. Six topics were identified as running throughout the Congress. These were: the epistemology and history of the sciences or disciplines concerned with the environment, including the scientific basis of rationality and modes of dealing with uncertainty and complexity; the social, economic, and institutional conditions for the production of knowledge bearing on the environment, including the politics of research and the improvement of scientific data; the structuring and institutionalization of expert assessments on national and international levels, including the global distribution of expertise; the means of establishing scientific information, the role of the media in transmitting and processing knowledge about the environment, and the organization of public environmental debate; and decision making and management under conditions of uncertainty; and, finally the relationship between science and ethics. 13 refs.

  10. Global production through 2005

    SciTech Connect (OSTI)

    Foreman, N.E.

    1996-12-01

    Two companion studies released recently should provide great food for thought among geo-political strategists and various national governments. If predictions contained in these Petroconsultants studies of oil and gas production trends for the next 10 years are realized, there will be great repercussions for net exporters and importers, alike. After analyzing and predicting trends within each of the world`s significant producing nations for the 1996--2005 period, the crude oil and condensate report concludes tat global production will jump nearly 24%. By contrast, worldwide gas output will leap 40%. The cast of characters among producers and exporters that will benefit from these increases varies considerably for each fuel. On the oil side, Russia and the OPEC members, particularly the Persian Gulf nations, will be back in the driver`s seat in terms of affecting export and pricing patterns. On the gas side, the leading producers will be an interesting mix of mostly non-OPEC countries. The reemergence of Persian Gulf oil producers, coupled with an anticipated long-term decline among top non-OPEC producing nations should present a sobering picture to government planners within large net importers, such as the US. They are likely to find themselves in much the same supply trap as was experienced in the 1970s, only this time the dependence on foreign oil supplies will be much worse. Gas supplies will not be similarly constrained, and some substitution for oil is probable. Here, two articles, ``World oil industry is set for transition`` and ``Worldwide gas surges forward in next decade,`` present a summary of the findings detailed in Petroconsultants` recent studies.

  11. Sand transport and deposition in horizontal multiphase trunklines of subsea satellite developments

    SciTech Connect (OSTI)

    Oudeman, P. )

    1993-11-01

    Gravel packing is unattractive as a way to protect against the effects of sand production in subsea wells because it involves additional completion costs, loss of productivity, and difficulties in subsequent recompletion/well servicing operations. On the other hand, omitting gravel packs means that subsea developments must be designed and operated so that they can tolerate sand production. An experimental study was carried out on sand transport and deposition in multiphase flow in modeled subsea flowlines to address the problem and sand collection in horizontal trunklines, which could lead to reduced line throughput, pigging problems, enhanced pipe-bottom erosion, or even blockage. This study led to the definition of a new model for sand transport in multiphase flow, which was used to establish the risk of sand deposition in trunklines connecting a subsea development to nearby production platform.

  12. Apparatus and method for the horizontal, crucible-free growth of silicon sheet crystals

    DOE Patents [OSTI]

    Ciszek, T.F.

    1984-09-12

    Apparatus is provided for continuously forming a silicon crystal sheet from a silicon rod in a non-crucible environment. The rod is rotated and fed toward an RF coil in an inert atmosphere so that the upper end of the rod becomes molten and the silicon sheet crystal is pulled therefrom substantially horizontally in a continuous strip. A shorting ring may be provided around the rod to limit the heating to the upper end only. Argon gas can be used to create the inert atmosphere within a suitable closed chamber. By use of this apparatus and method, a substantially defect-free silicon crystal sheet is formed which can be used for micro-circuitry chips or solar cells.

  13. Apparatus and method for the horizontal, crucible-free growth of silicon sheet crystals

    DOE Patents [OSTI]

    Ciszek, Theodore F. (Evergreen, CO)

    1987-01-01

    Apparatus for continuously forming a silicon crystal sheet from a silicon rod in a noncrucible environment. The rod is rotated and fed toward an RF coil in an inert atmosphere so that the upper end of the rod becomes molten and the silicon sheet crystal is pulled therefrom substantially horizontally in a continuous strip. A shorting ring may be provided around the rod to limit the heating to the upper end only. Argon gas can be used to create the inert atmosphere within a suitable closed chamber. By use of this apparatus and method, a substantially defect-free silicon crystal sheet is formed that can be used for microcircuitry chips or solar cells.

  14. Method for forming an in situ oil shale retort with horizontal free faces

    DOE Patents [OSTI]

    Ricketts, Thomas E.; Fernandes, Robert J.

    1983-01-01

    A method for forming a fragmented permeable mass of formation particles in an in situ oil shale retort is provided. A horizontally extending void is excavated in unfragmented formation containing oil shale and a zone of unfragmented formation is left adjacent the void. An array of explosive charges is formed in the zone of unfragmented formation. The array of explosive charges comprises rows of central explosive charges surrounded by a band of outer explosive charges which are adjacent side boundaries of the retort being formed. The powder factor of each outer explosive charge is made about equal to the powder factor of each central explosive charge. The explosive charges are detonated for explosively expanding the zone of unfragmented formation toward the void for forming the fragmented permeable mass of formation particles having a reasonably uniformly distributed void fraction in the in situ oil shale retort.

  15. Experimental on two sensors combination used in horizontal pipe gas-water two-phase flow

    SciTech Connect (OSTI)

    Wu, Hao; Dong, Feng

    2014-04-11

    Gas-water two phase flow phenomenon widely exists in production and living and the measurement of it is meaningful. A new type of long-waist cone flow sensor has been designed to measure two-phase mass flow rate. Six rings structure of conductance probe is used to measure volume fraction and axial velocity. The calibration of them have been made. Two sensors have been combined in horizontal pipeline experiment to measure two-phase flow mass flow rate. Several model of gas-water two-phase flow has been discussed. The calculation errors of total mass flow rate measurement is less than 5% based on the revised homogeneous flow model.

  16. Numerical Simulation of Horizontal Continuous Casting Process of C194 Copper Alloy

    SciTech Connect (OSTI)

    Huang Guojie; Xie Shuisheng; Cheng Lei; Cheng Zhenkang [State Key Laboratory for Fabrication and Processing of Nonferrous Metals, Beijing General Research Institute for Non-ferrous Metals, China, 100088 (China)

    2007-05-17

    Horizontal Continuous Casting (H.C.C) is an important method to cast C194 copper ingot. In this paper, numerical simulation is adopted to investigate the casting process in order to optimize the H.C.C technical parameters, such as the casting temperature, casting speed and cooling intensity. According to the numerical results, the reasonable parameters are that the casting temperature is between 1383K{approx}1463K, the casting speed is between 7.2m/h{approx}10.8m/h and the speed of cooling water is between 3.6m/s{approx}4.6m/s. The results of numerical simulation provide the significant reference to the subsequent experiments.

  17. Combined Experiment Phase 1. [Horizontal axis wind turbines: wind tunnel testing versus field testing

    SciTech Connect (OSTI)

    Butterfield, C.P.; Musial, W.P.; Simms, D.A.

    1992-10-01

    How does wind tunnel airfoil data differ from the airfoil performance on an operating horizontal axis wind turbine (HAWT) The National Renewable Energy laboratory has been conducting a comprehensive test program focused on answering this question and understanding the basic fluid mechanics of rotating HAWT stall aerodynamics. The basic approach was to instrument a wind rotor, using an airfoil that was well documented by wind tunnel tests, and measure operating pressure distributions on the rotating blade. Based an the integrated values of the pressure data, airfoil performance coefficients were obtained, and comparisons were made between the rotating data and the wind tunnel data. Care was taken to the aerodynamic and geometric differences between the rotating and the wind tunnel models. This is the first of two reports describing the Combined Experiment Program and its results. This Phase I report covers background information such as test setup and instrumentation. It also includes wind tunnel test results and roughness testing.

  18. Analysis of gallium arsenide deposition in a horizontal chemical vapor deposition reactor using massively parallel computations

    SciTech Connect (OSTI)

    Salinger, A.G.; Shadid, J.N.; Hutchinson, S.A.

    1998-01-01

    A numerical analysis of the deposition of gallium from trimethylgallium (TMG) and arsine in a horizontal CVD reactor with tilted susceptor and a three inch diameter rotating substrate is performed. The three-dimensional model includes complete coupling between fluid mechanics, heat transfer, and species transport, and is solved using an unstructured finite element discretization on a massively parallel computer. The effects of three operating parameters (the disk rotation rate, inlet TMG fraction, and inlet velocity) and two design parameters (the tilt angle of the reactor base and the reactor width) on the growth rate and uniformity are presented. The nonlinear dependence of the growth rate uniformity on the key operating parameters is discussed in detail. Efficient and robust algorithms for massively parallel reacting flow simulations, as incorporated into our analysis code MPSalsa, make detailed analysis of this complicated system feasible.

  19. Theoretical and experimental power from large horizontal-axis wind turbines

    SciTech Connect (OSTI)

    Viterna, L A; Janetzke, D C

    1982-09-01

    A method for calculating the output power from large horizontal-axis wind turbines is presented. Modifications to the airfoil characteristics and the momentum portion of classical blade element-momentum theory are given that improve correlation with measured data. Improvement is particularly evident at low tip speed ratios where aerodynamic stall can occur as the blade experiences high angles of attack. Output power calculated using the modified theory is compared with measured data for several large wind turbines. These wind turbines range in size from the DOE/NASA 100 kW Mod-O (38 m rotor diameter) to the 2000 kW Mod-1 (61 m rotor diameter). The calculated results are in good agreement with measured data from these machines.

  20. Methane drainage with horizontal boreholes in advance of longwall mining: an analysis. Final report

    SciTech Connect (OSTI)

    Gabello, D.P.; Felts, L.L.; Hayoz, F.P.

    1981-05-01

    The US Department of Energy (DOE) Morgantown Energy Technology Center has implemented a comprehensive program to demonstrate the technical and economic viability of coalbed methane as an energy resource. The program is directed toward solution of technical and institutional problems impeding the recovery and use of large quantities of methane contained in the nation's minable and unminable coalbeds. Conducted in direct support of the DOE Methane Recovery from Coalbeds Project, this study analyzes the economic aspects of a horizontal borehole methane recovery system integrated as part of a longwall mine operation. It establishes relationships between methane selling price and annual mine production, methane production rate, and the methane drainage system capital investment. Results are encouraging, indicating that an annual coal production increase of approximately eight percent would offset all associated drainage costs over the range of methane production rates and capital investments considered.

  1. Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance

    SciTech Connect (OSTI)

    Chris Liner; Dennis Kerr; Mohan Kelkar

    1998-09-30

    Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance The overall purpose of the proposed project is to improve secondary recovery performance of a marginal oil field through the use of an appropriate reservoir management plan. The selection of plan will be based on the detailed reservoir description using an integrated approach. We expect that 2 to 5% of the original oil in place will be recovered using this method. This should extend the life of the reservoir by at least 10 years. The project is divided into two stages. In Stage I of the project, we selected part of the Glenn Pool Field - Self Unit. We conducted cross borehole tomography surveys and formation micro scanner logs through a newly drilled well. By combining the state-of-the-art data with conventional core and log data, we developed a detailed reservoir description based on an integrated approach. After conducting extensive reservoir simulation studies, we evaluated alternate reservoir management strategies to improve the reservoir performance including drilling of a horizontal injection well. We observed that selective completion of many wells followed by an increase in the injection rate was the most feasible option to improve the performance of the Self Unit. This management plan is currently being implemented and the performance is being monitored. Stage II of the project will involve selection of part of the same reservoir (Berryhill Unit - Tract 7), development of reservoir description using only conventional data, simulation of flow performance using developed reservoir description, selection of an appropriate reservoir management plan, and implementation of the plan followed by monitoring of reservoir performance.

  2. Working at GE Global Research | GE Global Research

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

    products and working on lots of different things, and I was convinced that this ideal job didn't exist. I came to find out about the Sensor & Signal Analytics Lab at GE Global...

  3. Technical Education | GE Global Research

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

    Technical Education at GE Global Research 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) Technical Education at GE Global Research Mark Vermilyea describes the Edison Engineering Development Program (EEDP) and its "A Course," which features lectures on Global Research work in GE's major business units,

  4. Solar Global | Open Energy Information

    Open Energy Info (EERE)

    Republic Zip: 10100 Product: Czech PV developer and investor seeking partnership for its 200MW PV porfolio in the Czech Republic. References: Solar Global1 This article is a...

  5. GS Global Biodiesel JV | Open Energy Information

    Open Energy Info (EERE)

    Global Biodiesel JV Jump to: navigation, search Name: GS Global Biodiesel JV Place: Iowa Product: JV between GS AgriFuels and Global Ethanol set-up to develop a plant that will...

  6. Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance

    SciTech Connect (OSTI)

    Chris Liner; Dennis Kerr; Mohan Kelkar

    1998-06-30

    Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance scanner logs through a newly drilled well. By combining the state-of-the-art data with conventional core and log data, we developed a detailed reservoir description based on an integrated approach. After conducting extensive reservoir simulation studies, we evaluated alternate reservoir management strategies to improve the reservoir performance including drilling of a horizontal injection well. We observed that selective completion of many wells followed by an increase in the injection rate was the most feasible option to improve the performance of the Self Unit. This management plan is currently being implemented and the performance is being Stage II of the project will involve selection of part of the same reservoir (Berryhill Unit - Tract 7), development of reservoir description using only conventional data, simulation of flow performance using developed reservoir description, selection of an appropriate reservoir management plan, and implementation of the plan followed by monitoring of reservoir performance. During the summer of 1995, we started implementing the reservoir management plan in the Self Unit. Last quarter, after evaluating each individual well, we decided to install electrical submersible pumps to produce three wells. The other three wells required the use of rod pumps. Production from the field improved significantly once the pumps were installed. Over the last two years, an average daily production has been approximately 40 to 45 bbls/day. Compared to a base line production of 13 bbls/day before the implementation, this is more than a 200% increase in production. determined. We are finalizing the AFE for the overall implementation. This overall implementation will include converting well no 61 into an injector, re-perforating wells M-3A and M-4A, and drilling a deviated production well between 61 and M-3A/M-4A i n east west direction. The total length is expected to be about 500 ft, and the well would be completed in zones A through D. We expect to drill this well in the next quarter and provide some preliminary

  7. Apparatus for efficient sidewall containment of molten metal with horizontal alternating magnetic fields utilizing a ferromagnetic dam

    DOE Patents [OSTI]

    Praeg, W.F.

    1997-02-11

    An apparatus is disclosed for casting sheets of metal from molten metal. The apparatus includes a containment structure having an open side, a horizontal alternating magnetic field generating structure and a ferromagnetic dam. The magnetic field and the ferromagnetic dam contain the molten metal from leaking out side portions of the open side of the containment structure. 25 figs.

  8. Apparatus for efficient sidewall containment of molten metal with horizontal alternating magnetic fields utilizing a ferromagnetic dam

    DOE Patents [OSTI]

    Praeg, Walter F.

    1997-01-01

    An apparatus for casting sheets of metal from molten metal. The apparatus includes a containment structure having an open side, a horizontal alternating magnetic field generating structure and a ferromagnetic dam. The magnetic field and the ferromagnetic dam contain the molten metal from leaking out side portions of the open side of the containment structure.

  9. Apparatus for efficient sidewall containment of molten metal with horizontal alternating magnetic fields utilizing low reluctance rims

    DOE Patents [OSTI]

    Praeg, Walter F.

    1999-01-01

    A method and apparatus for casting sheets of metal from molten metal. The apparatus includes a containment structure having an open side, a horizontal alternating magnetic field generating structure and rollers including low reluctance rim structures. The magnetic field and the rollers help contain the molten metal from leaking out of the containment structure.

  10. Global Celsius SL | Open Energy Information

    Open Energy Info (EERE)

    search Name: Global Celsius SL Place: Madrid, Spain Sector: Wind energy Product: Spanish wind project developer. References: Global Celsius SL1 This article is a stub. You...

  11. Global Security | Y-12 National Security Complex

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

    sector. Global Security Cooley joins Y-12's Global Security and Strategic Partnerships Manufacturing and Technical Services Nuclear Material Recovery Nuclear Detection and...

  12. Digilog Global Environmental LLC | Open Energy Information

    Open Energy Info (EERE)

    Digilog Global Environmental LLC Jump to: navigation, search Name: Digilog Global Environmental LLC Place: Chicago, Illinois Zip: 60606 Product: TradeLink is registered as a...

  13. Global Alternative Fuels | Open Energy Information

    Open Energy Info (EERE)

    Alternative Fuels Jump to: navigation, search Name: Global Alternative Fuels Place: El Paso, Texas Zip: 79922 Product: Global Alternative Fuels processes virgin oils (palm,...

  14. NERSC Calculations Provide Independent Confirmation of Global...

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

    Calculations Provide Independent Confirmation of Global Land Warming Since 1901 NERSC Calculations Provide Independent Confirmation of Global Land Warming Since 1901 September 9, ...

  15. Global Power Solutions LLC | Open Energy Information

    Open Energy Info (EERE)

    Global Power Solutions LLC Jump to: navigation, search Name: Global Power Solutions LLC Place: Colorado Zip: CO 80401 Sector: Geothermal energy Product: String representation...

  16. Global Solar Energy | Open Energy Information

    Open Energy Info (EERE)

    Energy Jump to: navigation, search Name: Global Solar Energy Place: Tucson, AZ Website: www.globalsolarenergy.com References: Global Solar Energy1 Information About Partnership...

  17. Sunrise Global Solar Energy | Open Energy Information

    Open Energy Info (EERE)

    Global Solar Energy Jump to: navigation, search Name: Sunrise Global Solar Energy Place: Taoyuan County, Taiwan Zip: 330 Sector: Solar Product: Engaged in solar monocrystalline...

  18. Sky Solar Global SA | Open Energy Information

    Open Energy Info (EERE)

    Global SA Jump to: navigation, search Name: Sky Solar Global SA Place: Madrid, Spain Zip: 28046 Product: Project developer, and distributor of Chinese PV modules to Spain and...

  19. Global Climate Change Institute | Open Energy Information

    Open Energy Info (EERE)

    Change Institute Jump to: navigation, search Name: Global Climate Change Institute Place: Tsinghua University, Beijing Municipality, China Zip: 100084 Product: Global Climate...

  20. Brazil Interministerial Commission on Global Climate Change ...

    Open Energy Info (EERE)

    Interministerial Commission on Global Climate Change Jump to: navigation, search Name: Brazil Interministerial Commission on Global Climate Change Place: Distrito Federal...

  1. Eco Fuel Global | Open Energy Information

    Open Energy Info (EERE)

    Fuel Global Jump to: navigation, search Name: Eco-Fuel Global Place: California, California Zip: 94596 Sector: Services Product: California-based environmental engineering and...

  2. Carbon Markets Global Ltd | Open Energy Information

    Open Energy Info (EERE)

    Markets Global Ltd Jump to: navigation, search Name: Carbon Markets Global Ltd Place: London, United Kingdom Zip: NW4 2HT Product: Assist project originators develop and finance...

  3. The Global Carbon Bank | Open Energy Information

    Open Energy Info (EERE)

    Global Carbon Bank Jump to: navigation, search Name: The Global Carbon Bank Place: Houston, Texas Zip: 77025 Sector: Carbon, Services Product: Houston-based provider of advisory...

  4. Sustainable Solutions to Global Energy Challenges | Department...

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

    Solutions to Global Energy Challenges Sustainable Solutions to Global Energy Challenges ... Deployment Carl Wolf, Business Development Manager, LanzaTech PDF icon ...

  5. Global Cooling: Effect of Urban Albedo on Global Temperature

    SciTech Connect (OSTI)

    Akbari, Hashem; Menon, Surabi; Rosenfeld, Arthur

    2007-05-22

    In many urban areas, pavements and roofs constitute over 60% of urban surfaces (roof 20-25%, pavements about 40%). The roof and the pavement albedo can be increased by about 0.25 and 0.10, respectively, resulting in a net albedo increase for urban areas of about 0.1. Many studies have demonstrated building cooling-energy savings in excess of 20% upon raising roof reflectivity from an existing 10-20% to about 60%. We estimate U.S. potential savings in excess of $1 billion (B) per year in net annual energy bills. Increasing albedo of urban surfaces can reduce the summertime urban temperature and improve the urban air quality. Increasing the urban albedo has the added benefit of reflecting more of the incoming global solar radiation and countering the effect of global warming. We estimate that increasing albedo of urban areas by 0.1 results in an increase of 3 x 10{sup -4} in Earth albedo. Using a simple global model, the change in air temperature in lowest 1.8 km of the atmosphere is estimated at 0.01K. Modelers predict a warming of about 3K in the next 60 years (0.05K/year). Change of 0.1 in urban albedo will result in 0.01K global cooling, a delay of {approx}0.2 years in global warming. This 0.2 years delay in global warming is equivalent to 10 Gt reduction in CO2 emissions.

  6. Recovery of bypassed oil in the Dundee Formation using horizontal drains. Annual report, March 1996--March 1997

    SciTech Connect (OSTI)

    1998-04-01

    This Class II field project has demonstrated that economic quantities of hydrocarbons can be produced from abandoned or nearly abandoned fields in the Dundee Formation of Central Michigan using horizontal drilling technology. The site selected for the demonstration horizontal well was Crystal Field, a nearly abandoned Dundee oil field in Montcalm County, Michigan. This field had produced over 8 million barrels of oil, mostly in the 1930`s and 1940`s. At the height of development, Crystal Field produced from 193 wells, but by 1995, only seven producing wells remained, each producing less than 10 bbls/day. A horizontal well, the TOW 1-3, drilled as a field demonstration pilot was successful, producing at rate of 100 bbls of oil per day with a zero water cut. Although the well is capable of producing at a of 500+ bbls/day, the production rate is being kept low deliberately to try to prevent premature water coning. Cumulative production exceeded 50,000 bbls of oil by the end of April, 1997 and lead to the permitting and licensing of several dozen Dundee wells by project end. Twelve of these permits were for continued development of Crystal Field. Two long horizontal wells were drilled successfully in Crystal after the TOW 1-3, but were disappointing economically. Core and logs from the Dundee interval were recovered from a vertical borehole at the same surface location. The addition of several horizontal wells will likely add another 2 million bbls (or more) to the cumulative production of the field over the next few years. If other abandoned Dundee fields are re-developed in a similar manner, the additional oil produced could exceed 80 million barrels.

  7. DOUBLE HORIZONTAL BRANCHES IN NGC 6440 AND NGC 6569 UNVEILED BY THE VVV SURVEY

    SciTech Connect (OSTI)

    Mauro, Francesco; Bidin, Christian Moni; Cohen, Roger; Geisler, Doug; Chene, Andre-Nicolas; Villanova, Sandro; Minniti, Dante; Catelan, Marcio

    2012-12-20

    We report the discovery of a peculiar horizontal branch (HB) in NGC 6440 and NGC 6569, two massive and metal-rich Galactic globular clusters (GGCs) located in the Galactic bulge, within 4 kpc from the Galactic center. In both clusters, two distinct clumps are detected at the level of the cluster HB, separated by only {approx}0.1 mag in the K{sub s} band. They were detected with IR photometric data collected with the 'VISTA Variables in the Via Lactea' Survey, and confirmed in independent IR catalogs available in the literature and Hubble Space Telescope optical photometry. Our analysis demonstrates that these clumps are real cluster features, not a product of field contamination or interstellar reddening. The observed split HBs could be a signature of two stellar sub-populations with different chemical composition and/or age, as recently found in Terzan 5, but it cannot be excluded that they are caused by evolutionary effects, in particular for NGC 6440. This interpretation, however, requires an anomalously high helium content (Y > 0.30). Our discovery suggests that such a peculiar HB morphology could be a common feature of massive, metal-rich bulge GGCs.

  8. 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)

  9. Advanced Horizontal Well Recirculation Systems for Geothermal Energy Recovery in Sedimentary Formations

    SciTech Connect (OSTI)

    Mike Bruno; Russell L. Detwiler; Kang Lao; Vahid Serajian; Jean Elkhoury; Julia Diessl; Nicky White

    2012-09-30

    There is increased recognition that geothermal energy resources are more widespread than previously thought, with potential for providing a significant amount of sustainable clean energy worldwide. Recent advances in drilling, completion, and production technology from the oil and gas industry can now be applied to unlock vast new geothermal resources, with some estimates for potential electricity generation from geothermal energy now on the order of 2 million megawatts. Terralog USA, in collaboration with the University of California, Irvine (UCI), are currently investigating advanced design concepts for paired horizontal well recirculation systems, optimally configured for geothermal energy recovery in permeable sedimentary and crystalline formations of varying structure and material properties. This two-year research project, funded by the US Department of Energy, includes combined efforts for: 1) Resource characterization; 2) Small and large scale laboratory investigations; 3) Numerical simulation at both the laboratory and field scale; and 4) Engineering feasibility studies and economic evaluations. The research project is currently in its early stages. This paper summarizes our technical approach and preliminary findings related to potential resources, small-scale laboratory simulation, and supporting numerical simulation efforts.

  10. EFFECT OF HORIZONTALLY INHOMOGENEOUS HEATING ON FLOW AND MAGNETIC FIELD IN THE CHROMOSPHERE OF THE SUN

    SciTech Connect (OSTI)

    Song, P.; Vasyli?nas, V. M.

    2014-12-01

    The solar chromosphere is heated by damped Alfvn waves propagating upward from the photosphere at a rate that depends on magnetic field strength, producing enhanced heating at low altitudes in the extended weak-field regions (where the additional heating accounts for the radiative losses) between the boundaries of the chromospheric network as well as enhanced heating per particle at higher altitudes in strong magnetic field regions of the network. The resulting inhomogeneous radiation and temperature distribution produces bulk flows, which in turn affect the configuration of the magnetic field. The basic flow pattern is circulation on the spatial scale of a supergranule, with upward flow in the strong-field region; this is a mirror image in the upper chromosphere of photospheric/subphotospheric convection widely associated with the formation of the strong network field. There are significant differences between the neutral and the ionized components of the weakly ionized medium: neutral flow streamlines can form closed cells, whereas plasma is largely constrained to flow along the magnetic field. Stresses associated with this differential flow may explain why the canopy/funnel structures of the network magnetic field have a greater horizontal extent and are relatively more homogeneous at high altitudes than is expected from simple current-free models.

  11. Constraints on helium enhancement in the globular cluster M4 (NGC 6121): The horizontal branch test

    SciTech Connect (OSTI)

    Valcarce, A. A. R.; De Medeiros, J. R.; Catelan, M.; Alonso-Garca, J.; Corts, C.

    2014-02-20

    Recent pieces of evidence have revealed that most, and possibly all, globular star clusters are composed of groups of stars that formed in multiple episodes with different chemical compositions. In this sense, it has also been argued that variations in the initial helium abundance (Y) from one population to the next are also the rule, rather than the exception. In the case of the metal-intermediate globular cluster M4 (NGC 6121), recent high-resolution spectroscopic observations of blue horizontal branch (HB) stars (i.e., HB stars hotter than the RR Lyrae instability strip) suggest that a large fraction of blue HB stars are second-generation stars formed with high helium abundances. In this paper, we test this scenario by using recent photometric and spectroscopic data together with theoretical evolutionary computations for different Y values. Comparing the photometric data with the theoretically derived color-magnitude diagrams, we find that the bulk of the blue HB stars in M4 have ?Y ? 0.01 with respect to the cluster's red HB stars (i.e., HB stars cooler than the RR Lyrae strip)a result which is corroborated by comparison with spectroscopically derived gravities and temperatures, which also favor little He enhancement. However, the possible existence of a minority population on the blue HB of the cluster with a significant He enhancement level is also discussed.

  12. Horizontal-flow anaerobic immobilized sludge (HAIS) reactor for paper industry wastewater treatment

    SciTech Connect (OSTI)

    Foresti, E.; Cabral, A.K.A.; Zaiat, M.; Del Nery, V.

    1996-11-01

    Immobilized cell reactors are known to permit the continuous operation without biomass washout and also for increasing the time available for cells` catalytic function in a reaction or in a series of reactions. Several cell immobilization supports have been used in different reactors for anaerobic wastewater treatment, such as: agar gel, acrylamide, porous ceramic, and polyurethane foam besides the self-immobilized biomass from UASB reactors. However, the results are not conclusive as to the advantages of these different reactors with different supports as compared to other anaerobic reactor configurations. This paper describes a new anaerobic attached growth reactor configuration, herein referred as horizontal-flow anaerobic immobilized sludge (HAIS) reactor and presents the results of its performance test treating kraft paper industry wastewater. The reactor configuration was conceived aiming to increase the ratio useful volume/total volume by lowering the volume for gas separation. The HAIS reactor conception would permit also to incorporate the reactor hydrodynamic characteristics in its design criteria if the flow pattern could be approximated as plug-flow.

  13. Aerodynamic analysis of a 10 kW horizontal-axis windmill

    SciTech Connect (OSTI)

    Figard, R.L.

    1980-01-01

    An aerodynamic study of the performance and the flowfield in the vicinity of the rotor of a three bladed 10 kW, horizontal-axis windmill is presented. The windmill has a 6.38 m (20.92 ft) diameter rotor and is rated at 10 kW in a 13.41 m/s (44.0 fps) wind. Three basic approaches are utilized. First, field measurements of the performance and the axial velocity and turbulence behind the rotor were conducted. Second, wind tunnel tests of a 1:5 scale model were performed. Third, theoretical analyses of the windmill were made. This included performance predictions with a computerized, modified blade element (vortex theory) analysis and the development and utilization of a numerical procedure employing the full Navier-Stokes equations in axi-symmetric form to examine the wake development in detail. In that effort the rotor is modeled by an actuator disk in a uniform flow, a simple turbulence transport model based on an integrated TKE equation is applied, and the equations of motion are taken in terms of the stream function, one vorticity component, and the peripheral velocity. The results of each of the three approaches shows agreement within 10 to 15% with the other two approaches.

  14. METALLICITY AND KINEMATIC DISTRIBUTIONS OF RED HORIZONTAL-BRANCH STARS FROM THE SDSS SURVEY

    SciTech Connect (OSTI)

    Chen, Y. Q.; Zhao, G.; Zhao, J. K.; Xue, X. X.; Schuster, W. J. E-mail: schuster@astrosen.unam.m

    2010-08-15

    On the basis of a recently derived color-metallicity relation and stellar parameters from the Sloan Digital Sky Survey Data Release 7 spectroscopic survey, a large sample of red horizontal-branch (RHB) candidates have been selected to serve as standard candles. The metallicity and kinematic distributions of these stars indicate that they mainly originate from the thick-disk and the halo populations. The typical thick disk is characterized by the first group peaking at [Fe/H] {approx} -0.6, V{sub rot} {approx} 170 km s{sup -1} with a vertical scale height around |Z| {approx} 1.2 kpc, while stars with [Fe/H] < -0.9 are dominated by the halo population. Two sub-populations of the halo are suggested by the RHB stars peaking at [Fe/H] {approx} -1.3: one component with V{sub rot} > 0 km s{sup -1} (Halo I) shows a sign of metallicity gradient in the [Fe/H] versus |Z| diagram, while the other with V{sub rot} < 0 km s{sup -1} (Halo II) does not. The Halo I mainly clumps at the inner halo with R < 10 kpc and the Halo II comes both from the inner halo with R < 10 kpc and the outer halo with R > 10 kpc based on the star distribution in the R versus |Z| diagram.

  15. Underbalanced coiled-tubing-drilled horizontal well in the North Sea

    SciTech Connect (OSTI)

    Wodka, P.; Tirsgaard, H.; Damgaard, A.P.; Adamsen, C.J.

    1996-05-01

    Maersk Olie and Gas A/S (Maersk Oil) has drilled a 3,309-ft-long near-horizontal drainhole with coiled tubing to a total measured depth (MD) of 11,000 ft in the Danish sector of the North Sea. The well was completed in may 1994 as a 3{1/2}-in. openhole producer in the Gorm field chalk reservoir. Part of the well was drilled at underbalanced conditions, and oil production rates of up to 1,100 STB/D were reached during drilling. Conventional well-test equipment was used for handling returns. A nearby process facilities platform supplied lift gas and received the produced hydrocarbons during the drilling phase. Worth noting are the penetration of several chert layers, the fairly long reach, and the application of geosteering. Indications were that the well productivity was significantly improved compared with that of a conventionally drilled well, but problems were experienced with borehole stability in a fractured region.

  16. HORIZONTAL BRANCH MORPHOLOGY AND MULTIPLE STELLAR POPULATIONS IN THE ANOMALOUS GLOBULAR CLUSTER M 22

    SciTech Connect (OSTI)

    Marino, A. F.; Milone, A. P.; Lind, K. E-mail: milone@iac.es

    2013-05-01

    M 22 is an anomalous globular cluster that hosts two groups of stars with different metallicity and s-element abundance. The star-to-star light-element variations in both groups, with the presence of individual Na-O and C-N anticorrelations, demonstrates that this Milky Way satellite has experienced a complex star formation history. We have analyzed FLAMES/UVES spectra for seven stars covering a small color interval on the reddest horizontal branch (HB) portion of this cluster and investigated possible relations between the chemical composition of a star and its location along the HB. Our chemical abundance analysis takes into account effects introduced by deviations from the local thermodynamic equilibrium (NLTE effects), which are significant for the measured spectral lines in the atmospheric parameters range spanned by our stars. We find that all the analyzed stars are barium-poor and sodium-poor, thus supporting the idea that the position of a star along the HB is strictly related to the chemical composition, and that the HB morphology is influenced by the presence of different stellar populations.

  17. Comparison of optically measured and radar-derived horizontal neutral winds. Master's thesis

    SciTech Connect (OSTI)

    Christie, M.S.

    1990-01-01

    Nighttime thermospheric winds for Sondrestrom, Greenland from 11 nights between 1983 and 1988, have been compared to learn about the O(+)-O collision cross section and the high-latitude atomic oxygen density. The horizontal winds in the magnetic meridian were derived indirectly from incoherent-scatter radar (ISR) measurements on ion velocities antiparallel to the magnetic field and directly from Fabry-Perot interferometer (FPI) measurements of Doppler shifts of the (6300-A) emission of atomic oxygen. In deriving the radar winds, the O(+)-O collision cross section, was scaled by a factor of f what was varied from 0.5 to 5.1. On the basis of several arguments the altitude of the 6300-A emission was assumed to be 230 km. The best agreement between the ISR and FPI winds was obtained when f was increased substantially, to between 1.7 and 3.4. If the average peak emission altitude were higher, these factors would be larger; if it were lower, they would be somewhat smaller. However, if the average altitude were substantially lower it would have been more difficult to have obtained agreement between the two techniques.

  18. NASTRAN-based computer program for structural dynamic analysis of horizontal axis wind turbines

    SciTech Connect (OSTI)

    Lobitz, D.W.

    1984-01-01

    This paper describes a computer program developed for structural dynamic analysis of horizontal axis wind turbines (HAWTs). It is based on the finite element method through its reliance on NASTRAN for the development of mass, stiffness, and damping matrices of the tower and rotor, which are treated in NASTRAN as separate structures. The tower is modeled in a stationary frame and the rotor in one rotating at a constant angular velocity. The two structures are subsequently joined together (external to NASTRAN) using a time-dependent transformation consistent with the hub configuration. Aerodynamic loads are computed with an established flow model based on strip theory. Aeroelastic effects are included by incorporating the local velocity and twisting deformation of the blade in the load computation. The turbulent nature of the wind, both in space and time, is modeled by adding in stochastic wind increments. The resulting equations of motion are solved in the time domain using the implicit Newmark-Beta integrator. Preliminary comparisons with data from the Boeing/NASA MOD2 HAWT indicate that the code is capable of accurately and efficiently predicting the response of HAWTs driven by turbulent winds.

  19. Analysis of a Lifting Fixture to Hold a Steel Mandrel Horizontally from one End Support

    SciTech Connect (OSTI)

    Cease, H.; /Fermilab

    1999-04-07

    A lifting fixture (drawing number 3823.113-MD-372382) that lifts large steel mandrels from one end through the mandrel's end support web is described. The mandrels are used as a mold to form carbon fiber cylinders. The mandrels are held from one end to allow the carbon cylinder to be pulled horizontally off the mandrel. Only mandrels as described in drawing numbers 3823.113-MD-358992 and 3823.1 13-MD-358994 are lifted by the fixture. The largest mandrel is 41 inches in diameter, 120 inches long, and weighs approximately 3,000 lbs. A detailed procedure for removing the carbon cylinder from the steel mandrel is given in the Appendix. The fixture is to be supported only using Fermilab Forklift 10207 or equivalent. The forklift has a nameplate capacity of 12,000 lbs 24 inches from the mast at an elevation of 130 inches from the floor. The forklift forks must be removed from the truck prior to using the fixture. The forklift is to be used to support the mandrels only during the lifting operation and is not to be used to transport the mandrels. Stresses at the lifting fixture are shear stresses on the support brackets due to the overall weight of the mandrel and moment loads due to the cantilever style suppOrt. The moment on the forklift due to the overhanging weight of the mandrel is calculated. Stresses in the mandrel due to the method of support are also described.

  20. Global Climate Change and Agriculture

    SciTech Connect (OSTI)

    Izaurralde, Roberto C.

    2009-01-01

    The Fourth Assessment Report of the Intergovernmental Panel on Climate Change released in 2007 significantly increased our confidence about the role that humans play in forcing climate change. There is now a high degree of confidence that the (a) current atmospheric concentrations of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) far exceed those of the pre-industrial era, (b) global increases in CO2 arise mainly from fossil fuel use and land use change while those of CH4 and N2O originate primarily from agricultural activities, and (c) the net effect of human activities since 1750 has led to a warming of the lower layers of the atmosphere, with an increased radiative forcing of 1.6 W m-2. Depending on the scenario of human population growth and global development, mean global temperatures could rise between 1.8 and 4.0 C by the end of the 21st century.

  1. Global change: Acronyms and abbreviations

    SciTech Connect (OSTI)

    Woodard, C.T.; Stoss, F.W.

    1995-05-01

    This list of acronyms and abbreviations is compiled to provide the user with a ready reference to dicipher the linguistic initialisms and abridgements for the study of global change. The terms included in this first edition were selected from a wide variety of sources: technical reports, policy documents, global change program announcements, newsletters, and other periodicals. The disciplinary interests covered by this document include agriculture, atmospheric science, ecology, environmental science, oceanography, policy science, and other fields. In addition to its availability in hard copy, the list of acronyms and abbreviations is available in DOS-formatted diskettes and through CDIAC`s anonymous File Transfer Protocol (FTP) area on the Internet.

  2. Global warming: A Northwest perspective

    SciTech Connect (OSTI)

    Scott, M.J.; Counts, C.A.

    1990-02-01

    The Northwest Power Planning Council convened a symposium in Olympia, Washington, on the subject of global climate change ( the greenhouse effect'') and its potential for affecting the Pacific Northwest. The symposium was organized in response to a need by the Power Council to understand global climate change and its potential impacts on resource planning and fish and wildlife planning for the region, as well as a need to understand national policy developing toward climate change and the Pacific Northwest's role in it. 40 figs., 15 tabs.

  3. Global Threat Reduction Initiative | Department of Energy

    Energy Savers [EERE]

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

  4. Mixed convection transport from an isolated heat source module on a horizontal plate

    SciTech Connect (OSTI)

    Kang, B.H.; Jaluria, Y.; Tewari, S.S. )

    1990-08-01

    An experimental study of the mixed convective heat transfer from an isolated source of finite thickness, located on a horizontal surface in an externally induced forced flow, has been carried out. This problem is of particular interest in the cooling of electronic components and also in the thermal transport associated with various manufacturing systems, such as ovens and furnaces. The temperature distribution in the flow as well as the surface temperature variation are studied in detail. The dependence of the heat transfer rate on the mixed convection parameter and on the thickness of the heated element or source, particularly in the vicinity of the source, is investigated. The results obtained indicate that the heat transfer rate and fluid flow characteristics vary strongly with the mixed convection variables. The transition from a natural convection dominated flow to a forced convection dominated flow is studied experimentally and the basic characteristics of the two regimes determined. This transition has a strong influence on the temperature of the surface and on the heat transfer rate. As expected, the forced convection dominated flow is seen to be significantly more effective in the cooling of a heat dissipating component than a natural convection dominated flow. The location of the maximum temperature on the module surface, which corresponds to the minimum local heat transfer coefficient, is determined and discussed in terms of the underlying physical mechanisms. The results obtained are also compared with these for an element of negligible thickness and the effect of a significant module thickness on the transport is determined. Several other important aspects of fundamental and applied interest are studied in this investigation.

  5. Mixed convection heat transfer from thermal sources mounted on horizontal and vertical surfaces

    SciTech Connect (OSTI)

    Tewari, S.S.; Jaluria, Y. )

    1990-11-01

    An experimental study is carried out on the fundamental aspects of the conjugate, mixed convective heat transfer from two finite width heat sources, which are of negligible thickness, have a uniform heat flux input at the surface, and are located on a flat plate in a horizontal or the vertical orientation. The heat sources are wide in the transverse direction and, therefore, a two-dimensional flow circumstance is simulated. The mixed convection parameter is varied over a fairly wide range to include the buoyancy-dominated and the mixed convection regimes. The circumstances of pure natural convection are also investigated. The convective mechanisms have been studied in detail by measuring the surface temperatures and determining the heat transfer coefficients for the two heated strips, which represent isolated thermal sources. Experimental results indicate that a stronger upstream heat source causes an increase in the surface temperature of a relatively weaker heat source, located downstream, by reducing it convective heat transfer coefficient. The influence of the upstream source is found to be strongly dependent on the surface orientation, especially in the pure natural convection and the buoyancy dominated regimes. The two heat sources are found to be essentially independent on the surface orientation, especially in the pure natural convection and the buoyancy dominated regimes. The two heat sources are found to be essentially independent of each other, in terms of thermal effects, at a separation distance of more than about three strip widths for both the orientations. The results obtained are relevant to many engineering applications, such as the cooling of electronic systems, positioning of heating elements in furnaces, and safety considerations in enclosure fires.

  6. Integrated approach towards the application of horizontal wells to improve waterflooding performance. 1995 annual report

    SciTech Connect (OSTI)

    Kelkar, M.; Liner, C.; Kerr, D.

    1996-06-01

    This annual report describes the progress during the third year of the project on Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance. This project is funded under the Department of Energy`s Class I program which is targeted towards improving the reservoir performance of mature oil fields located in fluvially dominated deltaic geological environments. The project involves using an integrated approach to characterize the reservoir followed by proposing an appropriate reservoir management strategy to improve the field performance. In the first stage of the project, the type of data we integrated include cross borehole seismic surveys, geological interpretation based on the logs and the cores, and the engineering information. In contrast, during the second stage of the project, we intend to use only conventional data to construct the reservoir description. This report covers the results of the implementation from the first stage of the project. It also discusses the work accomplished so far for the second stage of the project. The preliminary results look promising from the field implementation. The production from the Self Unit (location of Stage I) has increased by 35 bbls/day with additional increase anticipated with further implementation. Based on our understanding of the first stage, we hope to examine a greater area of the Glenn Pool field for additional increase in production. We have collected available core and log data and have finished the initial geological description. Although not a direct part of this project, we also have initiated a 3-D seismic survey of the area which should help us in improving the reservoir description.

  7. System to acquire and monitor operating machinery positions for horizontal coke oven batteries

    SciTech Connect (OSTI)

    Bierbaum, D.; Teschner, W.

    1980-02-26

    In a horizontal coke oven battery with at least one coke receiving device movable along one longitudinal side of the battery and at least one coke driving device movable along an opposite longitudinal side of the battery, an apparatus is disclosed for determining the relative position of the coke receiving device with respect to the coke driving device and for activating the coke driving device when its position corresponds with that of the coke receiving device. A first wheel is mounted on the coke receiving device for rotation with the movement of the coke receiving device, a first angle encoder is connected to the first wheel for producing a first signal corresponding to the location of the first wheel and the position of the coke receiving device along the coke oven, and an input storage in the form of a magnetic disc is connected to the first angle encoder for recording and storing the signal. A second wheel is mounted on the coke driving device for rotation with the movement of the coke driving device and a second angle encoder is connected thereto for producing a second signal which corresponds to the rotation of the second wheel and the position of the coke driving device along the coke oven. A comparator is connected to the second signal encoder for receiving the second signal and a data link is provided between the comparator and the input storage of the coke receiving device so that the first signal from the coke receiving device can be impressed on the comparator. An activator is connected to the comparator for activating the coke driving device when the first signal corresponds to the second signal indicating a corresponding positional relationship between the coke receiving device and the coke driving device.

  8. A Method of Correcting for Tilt From Horizontal in Downwelling Shortwave Irradiance Measurements on Moving Platforms

    SciTech Connect (OSTI)

    Long, Charles N.; Bucholtz, Anthony; Jonsson, Haf; Schmid, Beat; Vogelmann, A. M.; Wood, John

    2010-04-14

    Significant errors occur in downwelling shortwave irradiance measurements made on moving platforms due to tilt from horizontal because, when the sun is not completely blocked by overhead cloud, the downwelling shortwave irradiance has a prominent directional component from the direct sun. A-priori knowledge of the partitioning between the direct and diffuse components of the total shortwave irradiance is needed to properly apply a correction for tilt. This partitioning information can be adequately provided using a newly available commercial radiometer that produces reasonable measurements of the total and diffuse shortwave irradiance, and by subtraction the direct shortwave irradiance, with no moving parts and regardless of azimuthal orientation. We have developed methodologies for determining the constant pitch and roll offsets of the radiometers for aircraft applications, and for applying a tilt correction to the total shortwave irradiance data. Results suggest that the methodology is for tilt up to +/-10, with 90% of the data corrected to within 10 Wm-2 at least for clear-sky data. Without a proper tilt correction, even data limited to 5 of tilt as is typical current practice still exhibits large errors, greater than 100 Wm-2 in some cases. Given the low cost, low weight, and low power consumption of the SPN1 total and diffuse radiometer, opportunities previously excluded for moving platform measurements such as small Unmanned Aerial Vehicles and solar powered buoys now become feasible using our methodology. The increase in measurement accuracy is important, given current concerns over long-term climate variability and change especially over the 70% of the Earths surface covered by ocean where long-term records of these measurements are sorely needed and must be made on ships and buoys.

  9. Global strategies for environmental issues

    SciTech Connect (OSTI)

    Not Available

    1994-01-01

    This is the 19th Annual NAEP conference proceedings, containing abstracts of oral presentations and poster sessions. Broad areas covered include the following: Environmental Management; Biodiversity/sustainable development; Gulf Regional Issues; Environmental ethics/equity; NEPA workshop and symposium; International environmental issues; global Environmental Effects; Risk Assessment; and Environmental effects of nuclear waste management.

  10. An application utilizing horizontal re-entries versus waterflooding for depleting a mid-life Niagaran Reef

    SciTech Connect (OSTI)

    Pieters, D.A.; Pearce, L.A.

    1996-12-31

    Waterflooding has been the preferred secondary recovery technique for mid-life Michigan Niagaran reefs that were large enough to economically warrant it. Since these pinnacle reefs average 50-550 acres, the success in waterflooding such a limited space has been a hit or miss proposition depending on the pinpoint accuracy in locating injector and producer. This paper presents a case history for the Colfax 25 reef where five horizontal drainholes were positioned across the field in a pattern to access and drain all areas of the reservoir. This particular reef was chosen based on identified incremental reserves, areal extent and on past production history which displayed reservoir characteristics that were favorable for horizontal wells. The application was tremendously successful. Production in all wells doubled as gas oil ratios were significantly reduced. Start-up costs were slightly below those of a conventional water flood and operating costs were substantially lower than would be incurred for a waterflood.

  11. Global

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

    Sandia Co-Hosts "Climate Risk Forum: Bridging Climate Science and Actuarial Practice" This Fall event was a follow-up to a Climate and Environment Program Area meeting with the California governor's office in July. There, the California Insurance Commissioner, Dave Jones, recognized the value of Sandia's climate-impact modeling and analysis work, led by Stephen Conrad (manager of Sandia's Resilience and Regulatory Effects Dept.), and wanted to connect that [...] By

  12. Role of horizontal gene transfer as a control on the coevolution of ribosomal proteins and the genetic code

    SciTech Connect (OSTI)

    Woese, Carl R.; Goldenfeld, Nigel; Luthey-Schulten, Zaida

    2011-03-31

    Our main goal is to develop the conceptual and computational tools necessary to understand the evolution of the universal processes of translation and replication and to identify events of horizontal gene transfer that occurred within the components. We will attempt to uncover the major evolutionary transitions that accompanied the development of protein synthesis by the ribosome and associated components of the translation apparatus. Our project goes beyond standard genomic approaches to explore homologs that are represented at both the structure and sequence level. Accordingly, use of structural phylogenetic analysis allows us to probe further back into deep evolutionary time than competing approaches, permitting greater resolution of primitive folds and structures. Specifically, our work focuses on the elements of translation, ranging from the emergence of the canonical genetic code to the evolution of specific protein folds, mediated by the predominance of horizontal gene transfer in early life. A unique element of this study is the explicit accounting for the impact of phenotype selection on translation, through a coevolutionary control mechanism. Our work contributes to DOE mission objectives through: (1) sophisticated computer simulation of protein dynamics and evolution, and the further refinement of techniques for structural phylogeny, which complement sequence information, leading to improved annotation of genomic databases; (2) development of evolutionary approaches to exploring cellular function and machinery in an integrated way; and (3) documentation of the phenotype interaction with translation over evolutionary time, reflecting the system response to changing selection pressures through horizontal gene transfer.

  13. Recovery of bypassed oil in the Dundee Formation using horizontal drains. Annual report, April 1994--June 1995

    SciTech Connect (OSTI)

    Wood, J.

    1995-08-01

    Crystal Field in Montcalm County, MI, was selected as a field trial site for this project. Analysis of production data for Crystal Field suggests that an additional 200,000 bbls of oil can be produced using one strategically located horizontal well. Total addition production from the Crystal Field could be as much as 6--8 MMBO. Application of the technology developed in this project to other Dundee fields in the area has the potential to increase Dundee production in Michigan by 35%, adding 80--100 MMBO to ultimate recovery. This project will demonstrate through a field trial that horizontal wells can be substantially increase oil production in older reservoirs that are at or near their economic limit. To maximize the potential of the horizontal well and to ensure that a comprehensive evaluation can be made, extensive reservoir characterization will be performed. In addition to the proposed field trial at Crystal Field, 29 additional Dundee fields in a seven-county area have been selected for study in the reservoir characterization portion of this project.

  14. Global Pathways Analysis Tool (GPAT)

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

    Global Pathways Analysis Tool (GPAT) (Sandia National Laboratories) Objectives Calculate least-cost pathways for hydrogen supply for eight participating countries: France, Germany, Norway, Spain, Sweden, Denmark, Japan, and the United States (U.S. further divided into eight regions to allow for additional regional analysis; additional countries could be added as data becomes available). The objective is to match country level demands for hydrogen with lowest cost supply options for each country.

  15. Global Warming and Human Health

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

    American Geophysical Union Global Warming and Human Health WHEN: Jul 27, 2015 5:30 PM - 6:30 PM WHERE: Eldorado Hotel 309 W San Francisco Street, Santa Fe SPEAKER: Robert Davis, University of Virginia CONTACT: Shermonta Grant (202) 777-7329 CATEGORY: Community Science TYPE: Lecture INTERNAL: Calendar Login Event Description The main reason we are concerned about human-induced climate change is that climate shifts might impact the health of Earth's populace. These impacts can be direct, such as

  16. Implementation of global energy sustainability

    SciTech Connect (OSTI)

    Grob, G.R.

    1998-02-01

    The term energy sustainability emerged from the UN Conference on Environment and Development in Rio 1992, when Agenda 21 was formulated and the Global Energy Charter proclaimed. Emission reductions, total energy costing, improved energy efficiency, and sustainable energy systems are the four fundamental principles of the charter. These principles can be implemented in the proposed financial, legal, technical, and education framework. Much has been done in many countries toward the implementation of the Global Energy Charter, but progress has not been fast enough to ease the disastrous effects of the too many ill-conceived energy systems on the environment, climate, and health. Global warming is accelerating, and pollution is worsening, especially in developing countries with their hunger for energy to meet the needs of economic development. Asian cities are now beating all pollution records, and greenhouse gases are visibly changing the climate with rising sea levels, retracting glaciers, and record weather disasters. This article presents why and how energy investments and research money have to be rechanneled into sustainable energy, rather than into the business-as-usual of depleting, unsustainable energy concepts exceeding one trillion dollars per year. This largest of all investment sectors needs much more attention.

  17. The Global Innovation Commons | Open Energy Information

    Open Energy Info (EERE)

    Virginia. References "The Global Innovation Commons" Global Innovation Commons (G.I.C.) A patent is a contract between an inventor and the public. In order to promote and...

  18. Oil & Gas Technology Center | GE Global Research

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

    Global Research Oil & Gas Technology Center Click to email this to a friend (Opens in new ... GE Global Research Oil & Gas Technology Center Mark Little, SVP and chief technology ...

  19. Global Energy Network Institute | Open Energy Information

    Open Energy Info (EERE)

    inlineLabel":"","visitedicon":"" Hide Map References: Global Energy Network Institute Web Site1 This article is a stub. You can help OpenEI by expanding it. Global Energy...

  20. Contour Global L P | Open Energy Information

    Open Energy Info (EERE)

    Global L P Jump to: navigation, search Name: Contour Global L.P. Place: New York, New York Zip: 10022 Sector: Renewable Energy Product: New York-based energy development company,...

  1. T Solar Global SA | Open Energy Information

    Open Energy Info (EERE)

    Solar Global SA Jump to: navigation, search Name: T-Solar Global SA Place: Madrid, Spain Zip: 28042 Product: Spain-based thin-film silicon PV cell and module maker, using Applied...

  2. Global Atlas | OpenEI Community

    Open Energy Info (EERE)

    Global Atlas Home Graham7781's picture Submitted by Graham7781(2017) Super contributor 11 February, 2013 - 15:18 IRENA launches global atlas of renewable energy potential data...

  3. Ardour Global Indexes LLC | Open Energy Information

    Open Energy Info (EERE)

    Name: Ardour Global Indexes LLC Place: New York City, New York Zip: 10016 Product: New-York based company that manages the Ardour Global Indexes, a set of alternative energy...

  4. Crest Global Green Energy | Open Energy Information

    Open Energy Info (EERE)

    Global Green Energy Jump to: navigation, search Name: Crest Global Green Energy Place: County Durham, England, United Kingdom Zip: SR7 7EU Product: UK-based biofuel company with...

  5. Think Green Global Inc | Open Energy Information

    Open Energy Info (EERE)

    Green Global Inc Jump to: navigation, search Name: Think Green Global, Inc. Place: New York, New York Zip: 10010 Sector: Renewable Energy Product: New York-based investment bank...

  6. Mandarin Global Carbon Ltd | Open Energy Information

    Open Energy Info (EERE)

    Mandarin Global Carbon Ltd Jump to: navigation, search Name: Mandarin Global Carbon Ltd Place: Londaon, Greater London, United Kingdom Zip: W1S 1TD Sector: Carbon, Hydro Product:...

  7. Global Wind Energy Council | Open Energy Information

    Open Energy Info (EERE)

    Energy Council Jump to: navigation, search Logo: Global Wind Energy Council Name: Global Wind Energy Council Address: Wind Power House Rue d'Arlon 80 Place: Brussels, Belgium Phone...

  8. ARM - Will There be Increased Global Precipitation?

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

    Will There be Increased Global Precipitation? Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans Will There be Increased Global Precipitation? Very probable. Along with an increase in air temperature might be an increase in evaporation, which could lead to greater global precipitation. The

  9. Promoting Sustainability on a Global Scale

    Broader source: Energy.gov [DOE]

    Promoting Sustainability on a Global Scale Martina Otto, Head of the Policy Unit, United Nations Environment Programme

  10. GE Capital Partnership | GE Global Research

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

    Global Research and GE Capital: Middle Market Collaboration 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) Global Research and GE Capital: Middle Market Collaboration In 2013, a partnering initiative between Global Research and GE Capital resulted in dozens of middle market companies collaborating with Global Research

  11. Dartmouth Stellar Evolution Database and the ACS Survey of Galactic Globular Clusters II. Stellar Evolution Tracks, Isochrones, Luminosity Functions, and Synthetic Horizontal-Branch Models

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

    Dotter, A; Chaboyer, B; Jevremovic, D; Kostov, V; Baron, E; Ferguson, J; Sarajedini, A; Anderson, J

    Web tools are also available at the home page (http://stellar.dartmouth.edu/~models/index.html). These tools allow users to create isochrones and convert them to luminosity functions or create synthetic horizontal branch models.

  12. Field Demonstration of Horizontal Infill Drilling Using Cost-effective Integrated Reservoir Modeling--Mississippian Carbonates, Central Kansas

    SciTech Connect (OSTI)

    Saibal Bhattacharya

    2005-08-31

    Mississippian carbonate reservoirs have produced in excess of 1 billion barrels of oil in Kansas accounting for over 16% of the state's production. With declining production from other age reservoirs, the contribution of Mississippian reservoirs to Kansas's oil production has risen to 43% as of 2004. However, solution-enhanced features such as vertical shale intervals extending from the karst erosional surface at the top introduce complexities/compartmentalizations in Mississippian carbonate reservoirs. Coupled with this, strong water drives charge many of these reservoirs resulting in limited drainage from vertical wells due to high water cuts after an initial period of low water production. Moreover, most of these fields are operated by small independent operators without access to the knowledge bank of modern research in field characterization and exploitation/development practices. Thus, despite increasing importance of Mississippian fields to Kansas production, these fields are beset with low recovery factors and high abandonment rates leaving significant resources in the ground. Worldwide, horizontal infill wells have been successful in draining compartmentalized reservoirs with limited pressure depletion. The intent of this project was to demonstrate the application of horizontal wells to successfully exploit the remaining potential in mature Mississippian fields of the mid-continent. However, it is of critical importance that for horizontal wells to be economically successful, they must be selectively targeted. This project demonstrated the application of initial and secondary screening methods, based on publicly available data, to quickly shortlist fields in a target area for detailed studies to evaluate their potential to infill horizontal well applications. Advanced decline curve analyses were used to estimate missing well-level production data and to verify if the well produced under unchanging bottom-hole conditions--two commonly occurring data constraints afflicting mature Mississippian fields. A publicly accessible databank of representative petrophysical properties and relationships was developed to overcome the paucity of such data that is critical to modeling the storage and flow in these reservoirs. Studies in 3 Mississippian fields demonstrated that traditional reservoir models built by integrating log, core, DST, and production data from existing wells on 40-acre spacings are unable to delineate karst-induced compartments, thus making 3D-seismic data critical to characterize these fields. Special attribute analyses on 3D data were shown to delineate reservoir compartments and predict those with pay porosities. Further testing of these techniques is required to validate their applicability in other Mississippian reservoirs. This study shows that detailed reservoir characterization and simulation on geomodels developed by integrating wireline log, core, petrophysical, production and pressure, and 3D-seismic data enables better evaluation of a candidate field for horizontal infill applications. In addition to reservoir compartmentalization, two factors were found to control the economic viability of a horizontal infill well in a mature Mississippian field: (a) adequate reservoir pressure support, and (b) an average well spacing greater than 40-acres.

  13. The NERSC Global File System

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

    NERSC Global File System (NGF) Jason Hick jhick@lbl.gov Storage Systems Group Lead http://www.nersc.gov/nusers/systems/NGF/ CAS2K11 September 11-14, 2011 * Operated by University of California for the US Department of Energy * NERSC serves a large population - Approximately 4000 users, 400 projects, 500 codes - Focus on "unique" resources * High-end computing systems * High-end storage systems - Large shared GPFS (a.k.a. NGF) - Large archive (a.k.a. HPSS) * Interface to high speed

  14. Are we seeing global warming?

    SciTech Connect (OSTI)

    Hasselmann, K.

    1997-05-09

    Despite considerable progress, the question of whether the observed gradual increase in global mean temperature over the last century is indeed caused by human activities or is simply an expression of natural climate variation on a larger spatial and temporal scales remains a controversial issue. To answer this question three things are needed: prediction of the anthropogenic climate change signal; determination of the natural climate variability noise; and computation of the signal-to-noise ratio and test of whether the ratio exceeds some predefined statistical detection threshold. This article discusses all these issues and the uncertainties involved in getting definitive answers. 12 refs., 1 fig.

  15. Economic Globalization and a Nuclear Renaissance

    SciTech Connect (OSTI)

    Wood, Thomas W.; Johnson, Wayne L.; Parker, Brian M.

    2001-10-22

    The phenomenon of globalization has become increasingly well recognized, documented, and analyzed in the last several years. Globalization, the integration of markets and intra-firm competition on a worldwide basis, involves complex behavioral and mindset changes within a firm that facilitate global competition. The changes revolve around efficient information flow and rapid deployment of technology. The objective of this report is to examine the probable characteristics of a global nuclear renaissance and its broad implications for industry structure and export control relative to nuclear technology. The question of how a modern renaissance would affect the trend toward globalization of the nuclear industry is addressed.

  16. Preliminary analysis of the audible noise of constant-speed, horizontal-axis wind-turbine generators

    SciTech Connect (OSTI)

    Keast, D. N.; Potter, R. C.

    1980-07-01

    An analytical procedure has been developed for calculating certain aerodynamic sound levels produced by large, horizontal-axis wind-turbine generators (WTG's) such as the DOE/NASA Mods-0, -0A, -1, and -2. This preliminary procedure is based upon very limited field data from the Mod-0. It postulates a noise component due to the (constant) rotation of the blades of the WTG, plus a wake-noise component that increases with the square of the power produced by the WTG. Mechanical sound from machinery, and low-frequency impulsive sounds produced by blade interaction with the wake of the support tower are not considered.

  17. Engineering change in global climate

    SciTech Connect (OSTI)

    Schneider, S.H.

    1996-12-31

    {open_quotes}With increased public focus on global warming and in the wake of the intense heat waves, drought, fires, and super-hurricanes that occurred in 1988 and 1989, interest in geoengineering has surged,{close_quotes} says Stephen H. Schneider, professor of biological science at Stanford University in Stanford, California. One scheme set forth in a National Research Council report proposes using 16-inch naval guns to fire aerosol shells into the stratosphere in hopes of offsetting {open_quotes}the radiative effects of increasing carbon dioxide,{close_quotes} Schneider says. Schneider, however, would prefer that we {open_quotes}seek measures that can cure our global {open_quote}addiction{close_quote} to polluting practices.{close_quotes} Rather than playing God, he says we should {open_quotes}stick to being human and pursue problem - solving methods currently within our grasp.{close_quotes} Such strategies include efforts to promote energy efficiency and reduce our reliance on automobiles.

  18. The Energy Efficiency Potential of Global Transport to 2050 ...

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

    The Energy Efficiency Potential of Global Transport to 2050 The Energy Efficiency Potential of Global Transport to 2050 Broad view of sustainability of global transportation PDF ...

  19. Wanted: Global Clean Energy Partners | OpenEI Community

    Open Energy Info (EERE)

    Super contributor 24 February, 2010 - 13:51 imported OpenEI Global climate change. Global sustainability. Global economic development. There's no doubt about it-if the...

  20. CO2 Global Solutions International | Open Energy Information

    Open Energy Info (EERE)

    Global Solutions International Jump to: navigation, search Name: CO2 Global Solutions International Place: Madrid, Spain Zip: 28001 Sector: Carbon Product: CO2 Global Solutions is...

  1. Horizontal-Velocity and Variance Measurements in the Stable Boundary Layer Using Doppler Lidar: Sensitivity to Averaging Procedures

    SciTech Connect (OSTI)

    Pichugina, Yelena L.; Banta, Robert M.; Kelley, Neil D.; Jonkman, Bonnie J.; Tucker, Sara C.; Newsom, Rob K.; Brewer, W. A.

    2008-08-01

    Quantitative data on turbulence variables aloft--above the region of the atmosphere conveniently measured from towers--has been an important but difficult measurement need for advancing understanding and modeling of the stable boundary layer (SBL). Vertical profiles of streamwise velocity variances obtained from NOAAs High Resolution Doppler Lidar (HRDL), which have been shown to be numerically equivalent to turbulence kinetic energy (TKE) for stable conditions, are a measure of the turbulence in the SBL. In the present study, the mean horizontal wind component U and variance ?u2 were computed from HRDL measurements of the line-of-sight (LOS) velocity using a technique described in Banta, et al. (2002). The technique was tested on datasets obtained during the Lamar Low-Level Jet Project (LLLJP) carried out in early September 2003, near the town of Lamar in southeastern Colorado. This paper compares U with mean wind speed obtained from sodar and sonic anemometer measurements. It then describes several series of averaging tests that produced the best correlation between TKE calculated from sonic anemometer data at several tower levels and lidar measurements of horizontal velocity variance ?u2. The results show high correlation (0.71-0.97) of the mean U and average wind speed measured by sodar and in-situ instruments, independent of sampling strategies and averaging procedures. Comparison of estimates of variance, on the other hand, proved sensitive to both the spatial and temporal averaging techniques.

  2. Design and Fabrication of the Superconducting Horizontal Bend Magnet for the Super High Momentum Spectrometer at Jefferson Lab

    SciTech Connect (OSTI)

    Chouhan, Shailendra S.; DeKamp, Jon; Burkhart, E. E,; Bierwagen, J.; Song, H.; Zeller, Albert F.; Brindza, Paul D.; Lassiter, Steven R.; Fowler, Michael J.; Sun, Qiuli

    2015-06-01

    A collaboration exists between NSCL and JLab to design and build JLab's Super High Momentum Spectrometer (SHMS) horizontal bend magnet that allows the bending of the 12 GeV/c particles horizontally by 3 to allow SHMS to reach angles as low as 5.5. Two full size coils have been wound and are cold tested for both magnetic and structural properties. Each coil is built from 90 layers of single-turn SSC outer conductor cable. An initial test coil with one third the turns was fabricated to demonstrate that the unique saddle shape with fully contoured ends could be wound with Rutherford superconducting cable. Learned lessons during the trial winding were integrated into the two complete full-scale coils that are now installed in the helium vessel. The fabrication of the iron yoke, cold mass, and thermal shield is complete, and assembly of the vacuum vessel is in progress. This paper presents the process and progress along with the modified magnet design to reduce the fringe field in the primary beam region and also includes the impact of the changes on coil forces and coil restraint system.

  3. Coal mine methane global review

    SciTech Connect (OSTI)

    2008-07-01

    This is the second edition of the Coal Mine Methane Global Overview, updated in the summer of 2008. This document contains individual, comprehensive profiles that characterize the coal and coal mine methane sectors of 33 countries - 22 methane to market partners and an additional 11 coal-producing nations. The executive summary provides summary tables that include statistics on coal reserves, coal production, methane emissions, and CMM projects activity. An International Coal Mine Methane Projects Database accompanies this overview. It contains more detailed and comprehensive information on over two hundred CMM recovery and utilization projects around the world. Project information in the database is updated regularly. This document will be updated annually. Suggestions for updates and revisions can be submitted to the Administrative Support Group and will be incorporate into the document as appropriate.

  4. Energy in Today's Global Society

    K-12 Energy Lesson Plans and Activities Web site (EERE)

    Energy is an abstract concept that is very familiar to students from personal experiences with household appliances, transportation, and their own bodies. However, the nature of energy, energy transformations, and energy conservation are poorly understood, even by most adults. The geopolitical and environmental issues associated with energy and its consumption in today’s global society are important for every citizen to appreciate in order to make informed decisions about the future. Without a deep understanding that energy is finite and that energy transformations are what give modern society its high standard of living, students today will not be prepared to make the tough personal and political decisions that await us as fossil fuel resources dwindle.

  5. Cosmic Rays and Global Warming

    SciTech Connect (OSTI)

    Sloan, T.; Wolfendale, A. W.

    2008-01-24

    Some workers have claimed that the observed temporal correlations of (low level) terrestrial cloud cover with the cosmic ray intensity changes, due to solar modulation, are causal. The possibility arises, therefore, of a connection between cosmic rays and Global Warming. If true, the implications would be very great. We have examined this claim in some detail. So far, we have not found any evidence in support and so our conclusions are to doubt it. From the absence of corroborative evidence we estimate that less than 15% at the 95% confidence level, of the 11-year cycle warming variations are due to cosmic rays and less than 2% of the warming over the last 43 years is due to this cause. The origin of the correlation itself is probably the cycle of solar irradiance although there is, as yet, no certainty.

  6. Global change monitoring with lichens

    SciTech Connect (OSTI)

    Insarov, G.

    1997-12-31

    Environmental monitoring involves observations and assessment of changes in ecosystems and their components caused by anthropogenetic influence. An ideal monitoring system enables quantification of the contemporary state of the environment and detect changes in it. An important function of monitoring is to assess environment quality of areas that are not affected by local anthropogenic impacts, i.e. background areas. In background areas terrestrial ecosystems are mainly affected by such anthropogenic factors as lowered air pollution and global climate change. Assessment of biotic responses to altered climatic and atmospheric conditions provides an important basis for ecosystem management and environmental decision making. Without the ability to make such assessment, sustainability of ecosystems as a support system for humans remains uncertain.

  7. EA-381 E-T Global Energy | Department of Energy

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

    EA-381 E-T Global Energy Order authorizing E-T Global Energy to export electric energy to Mexico. File EA-381 ET Global MX.docx More Documents & Publications EA-381 E-T Global ...

  8. Global warming, insurance losses and financial industry

    SciTech Connect (OSTI)

    Low, N.C.

    1996-12-31

    Global warming causes extremely bad weather in the near term. They have already caught the attention of the insurance industry, as they suffered massive losses in the last decade. Twenty-one out of the 25 largest catastrophes in the US, mainly in the form of hurricanes have occurred in the last decade. The insurance industry has reacted by taking the risk of global warming in decisions as to pricing and underwriting decisions. But they have yet to take a more active role in regulating the factors that contributes to global warming. How global warming can impact the financial industry and the modern economy is explored. Insurance and modern financial derivatives are key to the efficient functioning of the modern economy, without which the global economy can still function but will take a giant step backward. Any risk as global warming that causes economic surprises will hamper the efficient working of the financial market and the modern economy.

  9. Sustainability for the Global Biofuels Industry Minimizing Risks...

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

    Industry Minimizing Risks and Maximizing Opportunities Sustainability for the Global ... More Documents & Publications Sustainability for the Global Biofuels Industry: ...

  10. Global Threat Reduction Initiative | Department of Energy

    Energy Savers [EERE]

    Past Projects » Global Superior Energy Performance Partnership Global Superior Energy Performance Partnership Graphic of Global Superior Energy Performance working groups, including energy management led by the United States, power led by Japan, combined heat and power led by Finland, steel led by Japan, cool roofs led by the United states, and cement led by Japan. The U.S. Department of Energy (DOE) has supported the Superior Energy Performance (SEP) program, which provides industrial

  11. Global change research: Science and policy

    SciTech Connect (OSTI)

    Rayner, S.

    1993-05-01

    This report characterizes certain aspects of the Global Change Research Program of the US Government, and its relevance to the short and medium term needs of policy makers in the public and private sectors. It addresses some of the difficulties inherent in the science and policy interface on the issues of global change. Finally, this report offers some proposals for improving the science for policy process in the context of global environmental change.

  12. Global Security Sciences | Argonne National Laboratory

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

    Global Security Sciences Advancing world-class science and engineering to protect, mitigate, respond to and recover from threats The Global Security Sciences (GSS) division delivers actionable, defensible and powerful information and technologies to decision makers who impact and shape our global security. Innovative decision support tools (including simulation models), databases and analytical methodologies are developed and used to provide quantitative information to decision makers in the

  13. Global Scratch (/global/scratch2 aka $GSCRATCH) will be retired on October

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

    14 at 12:00 PDT Global Scratch (/global/scratch2 aka $GSCRATCH) will be retired on October 14 at 12:00 PDT Global Scratch (/global/scratch2 aka $GSCRATCH) will be retired on October 14 at 12:00 PDT October 9, 2015 by Richard Gerber This is a reminder that the Global Scratch (/global/scratch2 aka $GSCRATCH) file system will be retired on next Wednesday, October 14 at 12:00 (noon) PDT. The file system will be decommissioned and not be accessible after its retirement. Please make sure to back

  14. Pax Global: Compromise Agreement (2013-SE-1413)

    Broader source: Energy.gov [DOE]

    DOE and Pax Global, Inc., entered into a Compromise Agreement to resolve a case involving the distribution in commerce of noncompliant freezers.

  15. Ener t Global SA | Open Energy Information

    Open Energy Info (EERE)

    navigation, search Name: Ener-t Global SA Place: Valencia, Spain Zip: 46870 Product: Spanish developer of parabolic trough thermal plants on a turnkey basis. Coordinates:...

  16. New Energy Technologies | GE Global Research

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

    Read More GE Scientists Demonstrate Promising Anti-icing Nano Surfaces GE Global Research today presented new research findings on its nanotextured anti-icing surfaces. In ...

  17. Global Change Associates | Open Energy Information

    Open Energy Info (EERE)

    Change Associates Jump to: navigation, search Name: Global Change Associates Place: New York City, New York Zip: 10025-5657 Product: Consulting firm focusing on the convergence...

  18. Global Flex Group Inc | Open Energy Information

    Open Energy Info (EERE)

    search Name: Global-Flex Group Inc. Place: Temple, Texas Zip: 76501 Product: Texas based trade and financial solutions company consisting of three operating divisions....

  19. Global Electric Motorcars | Open Energy Information

    Open Energy Info (EERE)

    Product: Global Electric Motorcars (GEM), a Chrysler Company, develops and manufactures electric vehicles. Coordinates: 36.37617, -99.622804 Show Map Loading map......

  20. United Nations Environment Programme: Global Environment Outlook...

    Open Energy Info (EERE)

    more than 500 different variables, as national, subregional, regional and global statistics or as geospatial data sets (maps), covering themes like Freshwater, Population,...

  1. Ceramic Matrix Composites | GE Global Research

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

    Ceramic Matrix Composites Improve Engine Efficiency Ceramic matrix composites (CMCs) are a breakthrough materials technology for jet engines that started at our Global Research Center ...

  2. Global Environment Fund GEF | Open Energy Information

    Open Energy Info (EERE)

    Invests in companies that make positive contributions to environmental quality, human health and sustainable management of resources. References: Global Environment Fund...

  3. Global Warming Solutions Inc previously Southern Investments...

    Open Energy Info (EERE)

    Solutions Inc previously Southern Investments Inc Jump to: navigation, search Name: Global Warming Solutions Inc (previously Southern Investments Inc) Place: Houston, Texas...

  4. Global Electric Corporation | Open Energy Information

    Open Energy Info (EERE)

    company in the development and marketing of electric vehicles, garden equipment and Lithium powered products. References: Global Electric Corporation1 This article is a stub....

  5. ARM - Greenhouse Effect and Global Warming

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

    ListGreenhouse Effect and Global Warming Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students ...

  6. Engine Combustion Network (ECN): Global sensitivity analysis...

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

    10 Date Published June 2015 Keywords diesel, Engine Combustion Network, global sensitivity ... The uncertainty in the fuel temperature was found to have a profound influence on the ...

  7. Enerwise Global Technologies Inc | Open Energy Information

    Open Energy Info (EERE)

    to identify, quantify, and capitalize on economic opportunities related to the procurement and use of energy. References: Enerwise Global Technologies Inc1 This article is...

  8. GE Global Research in Oklahoma City

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

    Oklahoma City, USA Oklahoma City, USA GE's first sector-specific global research center is dedicated to developing and accelerating innovative oil and gas technologies. Click to ...

  9. Hexagon Global Energy | Open Energy Information

    Open Energy Info (EERE)

    navigation, search Name: Hexagon Global Energy Place: Istanbul, Turkey Sector: Solar, Wind energy Product: Istanbul-based project developer with a focus on wind, solar and solid...

  10. Global Green Growth Institute | Open Energy Information

    Open Energy Info (EERE)

    Growth Institute Redirect page Jump to: navigation, search REDIRECT Green Growth Strategy Support Retrieved from "http:en.openei.orgwindex.php?titleGlobalGreenGrowthIn...

  11. Pioneer Global Renewables | Open Energy Information

    Open Energy Info (EERE)

    Renewables Jump to: navigation, search Name: Pioneer Global Renewables Place: San Rafael, California Zip: 94901 Sector: Renewable Energy Product: Pioneer develops, finances...

  12. GE Global Research in Niskayuna, NY

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

    Niskayuna, USA Niskayuna, USA GE Global Research headquarters is the nerve center for innovative work across technologies and collaboration across GE businesses. Click to email...

  13. Susan Murabana - Astronomer, Global Hands On Universe

    ScienceCinema (OSTI)

    Murabana, Susan

    2013-05-29

    Susan Murabana is working to bring astronomy education to Africa through Global Hands-On Universe, a program founded by Berkeley Lab astronomer Carl Pennypacker.

  14. 3D Printed Toy | GE Global Research

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

    Scientists at GE Global Research get into the holiday spirit by bringing high-tech additive manufacturing techniques to Christmas tree ornaments. You Might Also Like...

  15. Global Energias Renovables SL | Open Energy Information

    Open Energy Info (EERE)

    Energias Renovables SL Jump to: navigation, search Name: Global Energias Renovables SL Place: Madrid, Spain Sector: Wind energy Product: Spanish wind power developer. References:...

  16. Disclosures, Disclaimers and Policies | GE Global Research

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

    to PHS-funded research Equal Employment Opportunity Plans Persons wishing to review GE Global Reasearch's EEOP should contact the GEGR Recruiting Manager: Megan Magee, GRC...

  17. Global Capital Finance | Open Energy Information

    Open Energy Info (EERE)

    Finance Jump to: navigation, search Name: Global Capital Finance Place: Purchase, New York Zip: 10577 Sector: Renewable Energy, Services Product: New York-based international...

  18. Global Green Partners | Open Energy Information

    Open Energy Info (EERE)

    Partners Jump to: navigation, search Name: Global Green Partners Place: Los Altos, California Zip: 94024 Sector: Carbon Product: California-based investment fund prioritizing trade...

  19. Global Renewable Energy Database | Open Energy Information

    Open Energy Info (EERE)

    LAUNCH TOOL Name: Global Renewable Energy Database AgencyCompany Organization: German Aerospace Center (DLR) Sector: Energy Focus Area: Renewable Energy, Solar, Wind...

  20. Stump the Scientist | GE Global Research

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

    > Stump the Scientist Behind the Scenes with Chief Scientist Jim Bray Watch the Video Happy Pi Day from GE Global Research Watch the Video Ready to Stump the...

  1. Joseph Salvo | Inventors | GE Global Research

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

    Salvo A global perspective colors Joe's approach to life and work. He appreciates the Internet of Things. And Chinese language and culture. The economics of innovation. And...

  2. A Global Effort to Phase Down Hydrofluorocarbons

    Broader source: Energy.gov [DOE]

    The Energy Department is part of the global effort to scale back the use of refrigerants thousands of times more potent than CO2.

  3. Global Energy Inc | Open Energy Information

    Open Energy Info (EERE)

    Global Energy Inc Place: Cincinnati, Ohio Zip: 45202-4048 Sector: Hydro, Hydrogen Product: Gasification technology and engineering firm, with activities in hydrogen production and...

  4. Global Industry Analysts | Open Energy Information

    Open Energy Info (EERE)

    search Name: Global Industry Analysts Address: 6150 Hellyer Avenue Place: San Jose, California Zip: 95138 Region: Bay Area Product: Market research services Year Founded:...

  5. IMPROVED MISCIBLE NITROGEN FLOOD PERFORMANCE UTILIZING ADVANCED RESERVOIR CHARACTERIZATION AND HORIZONTAL LATERALS IN A CLASS I RESERVOIR - EAST BINGER (MARCHAND) UNIT

    SciTech Connect (OSTI)

    Joe Sinner

    2002-01-16

    Work associated with Budget Period 1 of the East Binger (Marchand) Unit project is nearing completion. A major aspect of this project is accurate modeling of the performance of horizontal wells. Well EBU 37-3H, the first horizontal well drilled in the unit, was drilled in the second quarter of 2001. After much difficulty establishing economic production from the well, the well was hydraulically fractured in November 2001. Post-treatment production has been very encouraging and is significantly better than a vertical well drilled in a similar setting. International Reservoir Technologies, Inc. has completed the final history match of the pilot area reservoir simulation model, including tuning to the performance of the horizontal well. The model's predicted reservoir pressure gradient between injection and production wells accurately matches observed data from the field, a significant improvement from prior model predictions. The model's predicted gas injection profiles now also more accurately match field data. Work has begun toward evaluating the optimum development scenario with the pilot model. Initially, four scenarios will be evaluated--two involving all horizontal infill wells, one involving all vertical infill wells, and one involving a combination of vertical and horizontal infill wells. The model cases for these scenarios have been defined, and construction of them is underway.

  6. Global warming and nuclear power

    SciTech Connect (OSTI)

    Wood, L., LLNL

    1998-07-10

    Nuclear fission power reactors represent a potential solution to many aspects of global change possibly induced by inputting of either particulate or carbon or sulfur oxides into the Earth`s atmosphere. Of proven technological feasibility, they presently produce high-grade heat for large-scale electricity generation, space heating and industrial process-energizing around the world, without emitting greenhouse gases or atmospheric particulates; importantly, electricity production costs from the best nuclear plants presently are closely comparable with those of the best fossil-fired plants. However, a substantial number of issues currently stand between nuclear power and widespread substitution for large stationary fossil fuel-fired systems. These include perceptual ones regarding both long-term and acute operational safety, plant decommissioning, fuel reprocessing, radwaste disposal, fissile materials diversion to military purposes and - perhaps most seriously- readily quantifiable concerns regarding long-term fuel supply and total unit electrical energy cost. We sketch a road-map for proceeding from the present situation toward a nuclear power-intensive world, addressing along the way each of the concerns which presently impede widespread nuclear substitution for fossil fuels, particularly for coal in the most populous and rapidly developing portions of the world, e.g., China and India. This `design to societal specifications` approach to large-scale nuclear fission power systems may lead to energy sources meeting essentially all stationary demands for high-temperature heat. Such advanced options offer a human population of ten billion the electricity supply levels currently enjoyed by Americans for 10,000 years. Nuclear power systems tailored to local needs-and-interests and having a common advanced technology base could reduce present-day world-wide C0{sub 2} emissions by two-fold, if universally employed. By application to small mobile demands, a second two-fold reduction might be attained. Even the first such halving of carbon intensivity of stationary-source energy production world-wide might permit continued slow power-demand growth in the highly developed countries and rapid development of the other 80% of the world, both without active governmental suppression of fossil fuel usage - while also stabilizing carbon input-rates into the Earth`s atmosphere. The second two-fold reduction might obviate most global warming concerns.

  7. Integrated assessment of global warming

    SciTech Connect (OSTI)

    Ott, K.O.

    1996-12-31

    The anomalies of sea surface temperatures, which show a warming trend since the 1850s through the decade 1960/70 of {Delta}SST {approximately} 0.3 C, are complemented by changes of the ground surface temperature ({Delta}GST). The global surface temperature change, based on these data, allows an integrated assessment of the associated increase in black-body irradiance and a comparison with the enhanced greenhouse-gas back-scattering. Information on the GST history is obtained from unfolding analyses of underground temperature distributions measured in 90 boreholes in Alaskan permafrost and Canadian bedrock. These analyses show GST increases ({Delta}GST) since the 19th century through 1960/70 of 3 C on average, with standard deviations of +1.8 C and {minus}0.9 C on the high and low end respectively. The onset of the warming trend, which is uncertain in the GST data, is timed more accurately by detailed length records of large valley glaciers in the US and the Alps. Evaluation of the heat capacities and heat transfer indicates that the temperature response to an increase in radiative forcing must be much larger on land than on the sea. Conversely, the observed large ratio of {Delta}GST and {Delta}SST can only be explained by increased radiative forcing. From 1960/70 through the warmest decade on record, 1980/90, global {Delta}SST and {Delta}SAT have further increased to 0.6 C and 0.8 C respectively, But, the most recent GST data are not accurate enough to extend the comparison through 1990. Calculation of the increase of radiative forcing from back-scattering of greenhouse gases for 1850 to 1970 yields 1.3 W/cm{sup 2}. The increase in black-body irradiance from 3.6 C warming on land and 0.3 C on sea provides the required balance. The warming on land of 3.6 C is larger than the average value of 3.0 C, but well within the observed range.

  8. Contribution to the Study of Ferrite Nanobeads: Synthesis, Characterization and Investigation of Horizontal Low Gradient Magnetophoresis Behaviour

    SciTech Connect (OSTI)

    Benelmekki, Maria; Caparros, Cristina; Goncalves, Renao; Lanceros-Mendez, Senenxu; Montras, Anna; Martinez, Lluis Miquel

    2010-12-02

    In this work we investigate the possibilities of the use of Horizontal Low Gradient Magnetic Field (HLGMF)(<100 T/m) for filtration, control and separation of the synthesized magnetic particles, considering, the characteristics of the suspension, the size and the type of nanoparticles (NPs) and focusing on the process scale up. Reversible aggregation is considered in the different steps of magnetic nanobeads synthesis. For these purpose, we synthesized Fe{sub 2}O{sub 3}-silica core-shell nanobeads by co-precipitation, monodispersion and silica coating. SQUID, TEM, XRD, and Zeta potential techniques were used to characterize the synthesized nanobeads. An extensive magnetophoresis study was performed at different magnetophoretic conditions. Different reversible aggregation times were observed at different HLGMF, at each step of the synthesis route: Several orders of magnitude differences where observed when comparing citric acid (CA) suspension with silicon coated beads. Reversible aggregation times are correlated with the properties of the NPs at different steps of synthesis.

  9. Development and Verification of a Computational Fluid Dynamics Model of a Horizontal-Axis Tidal Current Turbine

    SciTech Connect (OSTI)

    Lawson, M. J.; Li, Y.; Sale, D. C.

    2011-10-01

    This paper describes the development of a computational fluid dynamics (CFD) methodology to simulate the hydrodynamics of horizontal-axis tidal current turbines. Qualitative measures of the CFD solutions were independent of the grid resolution. Conversely, quantitative comparisons of the results indicated that the use of coarse computational grids results in an under prediction of the hydrodynamic forces on the turbine blade in comparison to the forces predicted using more resolved grids. For the turbine operating conditions considered in this study, the effect of the computational timestep on the CFD solution was found to be minimal, and the results from steady and transient simulations were in good agreement. Additionally, the CFD results were compared to corresponding blade element momentum method calculations and reasonable agreement was shown. Nevertheless, we expect that for other turbine operating conditions, where the flow over the blade is separated, transient simulations will be required.

  10. Design of a horizontal test cryostat for superconducting RF cavities for the FREIA facility at Uppsala University

    SciTech Connect (OSTI)

    Chevalier, N. R.; Thermeau, J.-P.; Bujard, P.; Junquera, T. [Accelerators and Cryogenic Systems (ACS), 86 rue de Paris, 91400 Orsay (France); Hermansson, L.; Kern, R. Santiago; Ruber, R. [Uppsala University, Department of Physics and Astronomy, 75120 Uppsala (Sweden)

    2014-01-29

    Uppsala University is constructing a large scale facility, called FREIA (Facility for Research Instrumentation and Accelerator Development). FREIA includes a helium liquefier and an accelerator test facility and has the capacity to test superconducting radio-frequency (RF) cavities with the same RF system and RF power level as in an accelerator. A central element of FREIA is a horizontal test cryostat connected in closed loop to a helium liquefier. This cryostat can house two fully equipped (tuners, piezo, power coupler, helium tank) superconducting cavities to perform full RF high power tests and operate at temperatures between 1.8 K and 4.2 K. The cryostat is designed to accommodate a large array of superconducting cavities and magnets, among which the European Spallation Source (ESS) type spoke and high-? elliptical cavities as well as TESLA/ILC type elliptical cavities. The present status of the project and the design of the cryostat are reported.

  11. Shear-horizontal surface acoustic wave phononic device with high density filling material for ultra-low power sensing applications

    SciTech Connect (OSTI)

    Richardson, M.; Bhethanabotla, V. R.; Sankaranarayanan, S. K. R. S.

    2014-06-23

    Finite element simulations of a phononic shear-horizontal surface acoustic wave (SAW) sensor based on ST 90-X Quartz reveal a dramatic reduction in power consumption. The phononic sensor is realized by artificially structuring the delay path to form an acoustic meta-material comprised of a periodic microcavity array incorporating high-density materials such as tantalum or tungsten. Constructive interference of the scattered and secondary reflected waves at every microcavity interface leads to acoustic energy confinement in the high-density regions translating into reduced power loss. Tantalum filled cavities show the best performance while tungsten inclusions create a phononic bandgap. Based on our simulation results, SAW devices with tantalum filled microcavities were fabricated and shown to significantly decrease insertion loss. Our findings offer encouraging prospects for designing low power, highly sensitive portable biosensors.

  12. Direct-bandgap electroluminescence from a horizontal Ge p-i-n ridge waveguide on Si(001) substrate

    SciTech Connect (OSTI)

    Liu, Zhi; Li, Yaming; He, Chao; Li, Chuanbo; Xue, Chunlai; Zuo, Yuhua; Cheng, Buwen Wang, Qiming

    2014-05-12

    Horizontal injection Ge p-i-n ridge waveguide light emitting diodes (LEDs) were fabricated on n{sup ?}-Si(001) substrates by ultrahigh vacuum chemical vapor deposition. The direct-bandgap electroluminescence (EL) of Ge waveguide LEDs under a continuous/pulse electrical pump was studied. The heating effect from a continuous electrical pump was found to significantly enhance the emission of devices. The top surface EL intensity of the Ge waveguide LEDs significantly depended on the position. Most direct-bandgap radiative recombination of Ge p-i-n waveguide LEDs occurred near the N{sup +} region of the junction. This interesting phenomenon could be explained by the carrier distribution in the junction and the pseudo-direct bandgap of Ge.

  13. Feasibility study of air-breathing turbo-engines for horizontal take-off and landing space plane

    SciTech Connect (OSTI)

    Minoda, M.; Sakata, K.; Tamaki, T.; Saitoh, T.; Yasuda, A.

    1989-01-01

    Various concepts of air-breathing engines (ABEs) that could be used for a horizontal take-off and landing SSTO vehicle are investigated. The performances (with respect to thrust and the specific fuel consumption) of turboengines based on various technologies, including a turbojet with and without afterburner (TJ), turboramjet, and air-turbo-ram jet engines are compared. The mission capabilities of these ABEs for SSTO and TSTO vehicles is examined in terms of the ratio of the effective remaining weight (i.e., the weight on the orbit) to the take-off gross weight, using two-dimensional flight analysis. It was found that the dry TJ with the turbine inlet temperature 2000 C is one of the most promising candidates for the propulsion system of the SSTO vehicle, because of its small weight and high specific impulse. 6 refs.

  14. Global energy and water balance: Characteristics from finite-volume atmospheric model of the IAP/LASG (FAMIL1)

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

    Zhou, Linjiong; Bao, Qing; Liu, Yimin; Wu, Guoxiong; Wang, Wei-Chyung; Wang, Xiaocong; He, Bian; Yu, Haiyang; Li, Jiandong

    2015-03-01

    This paper documents version 1 of the Finite-volume Atmospheric Model of the IAP/LASG (FAMIL1), which has a flexible horizontal resolution up to a quarter of 1°. The model, currently running on the ‘‘Tianhe 1A’’ supercomputer, is the atmospheric component of the third-generation Flexible Global Ocean-Atmosphere-Land climate System model (FGOALS3) which will participate in the Coupled Model Intercomparison Project Phase 6 (CMIP6). In addition to describing the dynamical core and physical parameterizations of FAMIL1, this paper describes the simulated characteristics of energy and water balances and compares them with observational/reanalysis data. The comparisons indicate that the model simulates well the seasonalmore » and geographical distributions of radiative fluxes at the top of the atmosphere and at the surface, as well as the surface latent and sensible heat fluxes. A major weakness in the energy balance is identified in the regions where extensive and persistent marine stratocumulus is present. Analysis of the global water balance also indicates realistic seasonal and geographical distributions with the global annual mean of evaporation minus precipitation being approximately 10⁻⁵ mm d⁻¹. We also examine the connections between the global energy and water balance and discuss the possible link between the two within the context of the findings from the reanalysis data. Finally, the model biases as well as possible solutions are discussed.« less

  15. Global energy and water balance: Characteristics from finite-volume atmospheric model of the IAP/LASG (FAMIL1)

    SciTech Connect (OSTI)

    Zhou, Linjiong; Bao, Qing; Liu, Yimin; Wu, Guoxiong; Wang, Wei-Chyung; Wang, Xiaocong; He, Bian; Yu, Haiyang; Li, Jiandong

    2015-03-01

    This paper documents version 1 of the Finite-volume Atmospheric Model of the IAP/LASG (FAMIL1), which has a flexible horizontal resolution up to a quarter of 1°. The model, currently running on the ‘‘Tianhe 1A’’ supercomputer, is the atmospheric component of the third-generation Flexible Global Ocean-Atmosphere-Land climate System model (FGOALS3) which will participate in the Coupled Model Intercomparison Project Phase 6 (CMIP6). In addition to describing the dynamical core and physical parameterizations of FAMIL1, this paper describes the simulated characteristics of energy and water balances and compares them with observational/reanalysis data. The comparisons indicate that the model simulates well the seasonal and geographical distributions of radiative fluxes at the top of the atmosphere and at the surface, as well as the surface latent and sensible heat fluxes. A major weakness in the energy balance is identified in the regions where extensive and persistent marine stratocumulus is present. Analysis of the global water balance also indicates realistic seasonal and geographical distributions with the global annual mean of evaporation minus precipitation being approximately 10⁻⁵ mm d⁻¹. We also examine the connections between the global energy and water balance and discuss the possible link between the two within the context of the findings from the reanalysis data. Finally, the model biases as well as possible solutions are discussed.

  16. Heterogeneous Shallow-Shelf Carbonate Buildups in the Paradox Basin, Utah and Colorado: Targets for Increased Oil Production and Reserves Using Horizontal Drilling Techniques

    SciTech Connect (OSTI)

    Wray, Laura L.; Eby, David E.; Chidsey, Jr., Thomas C.

    2002-07-24

    This report covers research activities for the second half of the second project year (October 6, 2001, through April 5, 2002). This work includes description and analysis of cores, correlation of geophysical well logs, reservoir mapping, petrographic description of thin sections, cross plotting of permeability and porosity data, and development of horizontal drilling strategies for the Little Ute and Sleeping Ute fields in Montezuma County, Colorado. Geological characterization on a local scale focused on reservoir heterogeneity, quality, and lateral continuity, as well as possible compartmentalization, within these fields. This study utilizes representative core, geophysical logs, and thin sections to characterize and grade each field's potential for drilling horizontal laterals from existing development wells.

  17. Evaluating Global Aerosol Models and Aerosol and Water Vapor Properties Near Clouds

    SciTech Connect (OSTI)

    Turner, David, D.; Ferrare, Richard, A.

    2011-07-06

    The 'Evaluating Global Aerosol Models and Aerosol and Water Vapor Properties Near Clouds' project focused extensively on the analysis and utilization of water vapor and aerosol profiles derived from the ARM Raman lidar at the Southern Great Plains ARM site. A wide range of different tasks were performed during this project, all of which improved quality of the data products derived from the lidar or advanced the understanding of atmospheric processes over the site. These activities included: upgrading the Raman lidar to improve its sensitivity; participating in field experiments to validate the lidar aerosol and water vapor retrievals; using the lidar aerosol profiles to evaluate the accuracy of the vertical distribution of aerosols in global aerosol model simulations; examining the correlation between relative humidity and aerosol extinction, and how these change, due to horizontal distance away from cumulus clouds; inferring boundary layer turbulence structure in convective boundary layers from the high-time-resolution lidar water vapor measurements; retrieving cumulus entrainment rates in boundary layer cumulus clouds; and participating in a field experiment that provided data to help validate both the entrainment rate retrievals and the turbulent profiles derived from lidar observations.

  18. Climate Effects of Global Land Cover Change

    SciTech Connect (OSTI)

    Gibbard, S G; Caldeira, K; Bala, G; Phillips, T; Wickett, M

    2005-08-24

    There are two competing effects of global land cover change on climate: an albedo effect which leads to heating when changing from grass/croplands to forest, and an evapotranspiration effect which tends to produce cooling. It is not clear which effect would dominate in a global land cover change scenario. We have performed coupled land/ocean/atmosphere simulations of global land cover change using the NCAR CAM3 atmospheric general circulation model. We find that replacement of current vegetation by trees on a global basis would lead to a global annual mean warming of 1.6 C, nearly 75% of the warming produced under a doubled CO{sub 2} concentration, while global replacement by grasslands would result in a cooling of 0.4 C. These results suggest that more research is necessary before forest carbon storage should be deployed as a mitigation strategy for global warming. In particular, high latitude forests probably have a net warming effect on the Earth's climate.

  19. Carbonyl sulfide: No remedy for global warming

    SciTech Connect (OSTI)

    Taubman, S.J.; Kasting, J.F. [Pennsylvania State Univ., University Park, PA (United States)] [Pennsylvania State Univ., University Park, PA (United States)

    1995-04-01

    The authors look at the possibility of counteracting global warming forces by the injection of carbonyl sulfide (OCS) into the stratosphere at levels high enough to balance the impact say of a doubling of carbon dioxide concentrations, which are projected to result in a global 3{degrees} C warming. OCS injections at densities to provide such cooling will result a 30 percent impact of global ozone, whereas the carbon dioxide only made a 5% impact. In addition levels which would be found on the earths surface would be in the range 10 ppmv which is questionable as a safe exposure limit for humans, in addition to its impact on the ph of rainwater.

  20. About Additive Manufacturing | GE Global Research

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

    Introducing Additive Manufacturing at GE Global Research 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) Introducing Additive Manufacturing at GE Global Research Prabhjot Singh, manager of the Additive Manufacturing Lab at GE Global Research, describes the technology used in his lab. You Might Also Like DirectWrite_V

  1. Global warming: Science or politics? Part 2

    SciTech Connect (OSTI)

    Dorweiler, V.P.

    1998-05-01

    Supplementing the conclusion that ``there has been a discernible influence of human activity on global climate`` is a set of dire consequences to the globe and human population. One consequence is the spread of tropical diseases. It has not been concluded whether the spread of disease is due to global conditions or to opening of tropical forests to commerce, allowing spread by travelers. Whether these forecasts abet the claimed relation of human activity to global warming, they are not a new phenomenon. In the space of several decades, dire consequences have been forecast in three sectors: natural resource consumption, energy resources and environmental fate. These three areas are reviewed.

  2. Horizontal Velocity and Variance Measurements in the Stable Boundary Layer Using Doppler Lidar: Sensitivity to Averaging Procedures

    SciTech Connect (OSTI)

    Pichugina, Y. L.; Banta, R. M.; Kelley, N. D.; Jonkman, B. J.; Tucker, S. C.; Newsom, R. K.; Brewer, W. A.

    2008-08-01

    Quantitative data on turbulence variables aloft--above the region of the atmosphere conveniently measured from towers--have been an important but difficult measurement need for advancing understanding and modeling of the stable boundary layer (SBL). Vertical profiles of streamwise velocity variances obtained from NOAA's high-resolution Doppler lidar (HRDL), which have been shown to be approximately equal to turbulence kinetic energy (TKE) for stable conditions, are a measure of the turbulence in the SBL. In the present study, the mean horizontal wind component U and variance {sigma}2u were computed from HRDL measurements of the line-of-sight (LOS) velocity using a method described by Banta et al., which uses an elevation (vertical slice) scanning technique. The method was tested on datasets obtained during the Lamar Low-Level Jet Project (LLLJP) carried out in early September 2003, near the town of Lamar in southeastern Colorado. This paper compares U with mean wind speed obtained from sodar and sonic anemometer measurements. The results for the mean U and mean wind speed measured by sodar and in situ instruments for all nights of LLLJP show high correlation (0.71-0.97), independent of sampling strategies and averaging procedures, and correlation coefficients consistently >0.9 for four high-wind nights, when the low-level jet speeds exceeded 15 m s{sup -1} at some time during the night. Comparison of estimates of variance, on the other hand, proved sensitive to both the spatial and temporal averaging parameters. Several series of averaging tests are described, to find the best correlation between TKE calculated from sonic anemometer data at several tower levels and lidar measurements of horizontal-velocity variance {sigma}{sup 2}{sub u}. Because of the nonstationarity of the SBL data, the best results were obtained when the velocity data were first averaged over intervals of 1 min, and then further averaged over 3-15 consecutive 1-min intervals, with best results for the 10- and 15-min averaging periods. For these cases, correlation coefficients exceeded 0.9. As a part of the analysis, Eulerian integral time scales ({tau}) were estimated for the four high-wind nights. Time series of {tau} through each night indicated erratic behavior consistent with the nonstationarity. Histograms of {tau} showed a mode at 4-5 s, but frequent occurrences of larger {tau} values, mostly between 10 and 100 s.

  3. Global Renewable Energy Network | Open Energy Information

    Open Energy Info (EERE)

    Renewable Energy Network (GReEN) Name: Global Renewable Energy Network (GReEN) Address: P.O. Box 1999 Place: Massapequa, NY Zip: 11758 Region: Northeast - NY NJ CT PA Area Number...

  4. Global Market for Geothermal Continues Upswing

    Broader source: Energy.gov [DOE]

    The Geothermal Energy Association reported that the global geothermal market is expected to have 12,000 MW of geothermal capacity online by end of year. Another 12,000 MW is under development...

  5. MicroPower Global | Open Energy Information

    Open Energy Info (EERE)

    owner of semiconductor-based heat conversion to electricity technology for use in waste-heat, solar thermal and other uses. References: MicroPower Global1 This article is a...

  6. Terra Solar Global Inc | Open Energy Information

    Open Energy Info (EERE)

    of system components such as batteries, converters, and charge controllers for use in PV systems. References: Terra Solar Global Inc1 This article is a stub. You can help...

  7. Global Social Media Directory: A Resource Guide

    SciTech Connect (OSTI)

    Noonan, Christine F.; Piatt, Andrew W.

    2014-10-23

    The Global Social Media Directory is a resource guide providing information on social networking services around the globe. This information changes rapidly, therefore, this document will be updated on a regular basis and as funding permits.

  8. Clean Energy Technology: American and Global Progress

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

    to 6W: LCOE 7 to 16kWhr * Global Capacity: o 200 GW Market Impact NREL Research: Solar Updated 3102015 Worldwide PV Manufacturing Source: NREL 2013 Data Book PV...

  9. GlobalWatt Inc | Open Energy Information

    Open Energy Info (EERE)

    search Name: GlobalWatt Inc Place: Dover, Delaware Zip: 19801 Product: Shell company, once planned to float on AIM to raise money in order to acquire the business of...

  10. Tri Global Energy LLC | Open Energy Information

    Open Energy Info (EERE)

    Name: Tri Global Energy LLC Place: Dallas, Texas Zip: 75248 Sector: Services, Solar, Wind energy Product: Texas-based developer that offers a full range of services in planning,...

  11. Global Energia Eletrica SA | Open Energy Information

    Open Energy Info (EERE)

    Eletrica SA Jump to: navigation, search Name: Global Energia Eletrica SA Place: Cuiab, Mato Grosso, Brazil Zip: 78020-800 Sector: Hydro Product: Mato Grosso-based small hydro...

  12. Global Wind Systems Inc | Open Energy Information

    Open Energy Info (EERE)

    Global Wind Systems, Inc. Place: Novi, Michigan Zip: 48375 Product: Michigan-based startup company that plans to develop a turbine assembly plant in the town of Novi, using a...

  13. Global environmental markets: Equity and efficiency

    SciTech Connect (OSTI)

    Chichilnisky, G.

    1997-12-31

    Global markets trading rights to emit greenhouse gases are now actively considered by the United Nations. This leads to a new phenomenon: environmental markets in a global scale. Is this new, or are these markets simply a global manifestation of a trend towards market solutions? This paper will show that there is a fundamental difference between global environmental markets and standard stock exchanges. Because the atmosphere of the planet is one and the same for all, these markets trade {open_quotes}public goods{close_quotes} which are, however, privately produced. These are different from all the goods that are traded in markets today. Efficiency in these markets dictates different rules, involving a more equitable allocation of property rights on environmental use, and this requires new institutional arrangements. There is a need for a new institution, an International Bank for Environmental Settlements (IBES), which can lead to organized trading and ensures market integrity and efficiency.

  14. Global environmental change: Its nature and impact

    SciTech Connect (OSTI)

    Hidore, J.J.

    1996-12-31

    This book is intended as an entry-level textbook on environmental science for nonscience majors. Twenty chapters address topics from historical geology and climatic change to population dynamics, land-use, water pollution, ozone depletion and biodiversity, global warming.

  15. Global warming: Science or politics. Part 1

    SciTech Connect (OSTI)

    Dorweiler, V.P.

    1998-04-01

    ``The balance of evidence suggests that there has been a discernible influence of human activity on global climate`` is a statement employed as the foundation basis to intervene on behalf of the globe and the future. That statement, as scientific evidence of human-produced greenhouse gases (primarily CO{sub 2}) having a warming effect on global climate is a political statement only. Further, the Kyoto conference to consider intervention in human activities regarding global warming was a political conference. Political and treaty issues were the focus; scientific issues were not much discussed. What change is needed then to scientifically determine global warming and to ascertain whether human activity is involved? A better understanding of the natural climate variations related to solar variation can improve understanding of an anthropogenic greenhouse effect on the climate. The purpose of this article is to pose the scientific question. Part 2 will present an answer.

  16. Global Energy Investors | Open Energy Information

    Open Energy Info (EERE)

    Wind energy Product: Massachusetts-based Global Energy Investors was formed in 2009 to invest primarily in wind and solar power projects but it may also consider biomass and hydro...

  17. DEFRA Global Atmosphere Dept | Open Energy Information

    Open Energy Info (EERE)

    Kingdom Zip: SW1E 6DE Product: Atmosphere research department of the UK Department of Food and Rural Affairs. References: DEFRA - Global Atmosphere Dept.1 This article is a...

  18. Advanced Water Technologies | GE Global Research

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

    Water We're developing ways to purify and conserve this vital resource. Take a look at our work. Home > Innovation > Water Innovation 247: We're Always Open At GE Global Research, ...

  19. Global Energy: Supply, Demand, Consequences, Opportunities

    ScienceCinema (OSTI)

    Majumdar, Arun

    2010-01-08

    July 29, 2008 Berkeley Lab lecture: Arun Majumdar, Director of the Environmental Energy Technologies Division, discusses current and future projections of economic growth, population, and global energy demand and supply, and explores the implications of these trends for the environment.

  20. GlobalSums, Version 1.x

    Energy Science and Technology Software Center (OSTI)

    2015-10-06

    This code is a set of global sums to support the paper "Computational Reproducibility for Production Physics Applications" submitted to the Numerical Reproducibility at Exascale (NRE 2015) workshop at the 2015 Supercomputing conference, Nov. 20, 2015

  1. Ginni Global Ltd | Open Energy Information

    Open Energy Info (EERE)

    Ltd. Place: New Delhi, Delhi (NCT), India Zip: 110005 Sector: Hydro Product: Delhi-based small hydro project developer. References: Ginni Global Ltd.1 This article is a stub....

  2. Lab joins in global Earth Day celebrations

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

    Lab joins in global Earth Day celebrations Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:May 2016 all issues All Issues » submit Lab joins in global Earth Day celebrations A personal message from Laboratory Director Charlie McMillan April 1, 2014 Charlie McMillan, Laboratory Director Charlie McMillan, Laboratory Director Contacts Community Programs Office Director Kurt Steinhaus Email Editor Linda Anderman Email Los Alamos National

  3. Global Collaborations | netl.doe.gov

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

    Global Collaborations The Global Collaborations element includes ongoing partnerships with numerous international organizations to leverage U.S. expertise with other large-scale projects. The Carbon Storage Program relies on international collaborations to complement the program's approach to reducing CO2 emissions. DOE is partnering with the International Energy Agency's Greenhouse Gas R&D Program (IEAGHG), the Carbon Sequestration Leadership Forum (CSLF), the U.S.-China Clean Energy

  4. Global Material Security | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Nonproliferation Global Material Security The mission of the Office of Global Material Security (GMS) is to help partner countries secure and account for nuclear weapons, weapons-useable nuclear and radiological materials, as well as to build capacity to deter, detect and interdict the illicit trafficking of such materials. GMS achieves its mission through three subprograms: International Nuclear Security Radiological Security Nuclear Smuggling Detection and Deterrence (formerly Second Line of

  5. Limitation of parallel flow in double diffusive convection: Two- and three-dimensional transitions in a horizontal porous domain

    SciTech Connect (OSTI)

    Mimouni, N.; Chikh, S.; Rahli, O.; Bennacer, R.

    2014-07-15

    Two-dimensional (2D) and three-dimensional (3D) numerical simulations of double diffusion natural convection in an elongated enclosure filled with a binary fluid saturating a porous medium are carried out in the present work. The Boussinesq approximation is made in the formulation of the problem, and Neumann boundary conditions for temperature and concentration are adopted, respectively, on vertical and horizontal walls of the cavity. The used numerical method is based on the control volume approach, with the third order quadratic upstream interpolation scheme in approximating the advection terms. A semi implicit method algorithm is used to handle the velocity-pressure coupling. To avoid the excessively high computer time inherent to the solution of 3D natural convection problems, full approximation storage with full multigrid method is used to solve the problem. A wide range of the controlling parameters (Rayleigh-Darcy number Ra, lateral aspect ratio Ay, Lewis number Le, and the buoyancy ration N) is investigated. We clearly show that increasing the depth of the cavity (i.e., the lateral aspect ratio) has an important effect on the flow patterns. The 2D perfect parallel flows obtained for small lateral aspect ratio are drastically destabilized by increasing the cavity lateral dimension. This yields a 3D fluid motion with a much more complex flow pattern and the usually considered 2D parallel flow model cannot be applied.

  6. Fuel cell integral bundle assembly including ceramic open end seal and vertical and horizontal thermal expansion control

    DOE Patents [OSTI]

    Zafred, Paolo R.; Gillett, James E.

    2012-04-24

    A plurality of integral bundle assemblies contain a top portion with an inlet fuel plenum and a bottom portion containing a base support, the base supports a dense, ceramic air exhaust manifold having four supporting legs, the manifold is below and connects to air feed tubes located in a recuperator zone, the air feed tubes passing into the center of inverted, tubular, elongated, hollow electrically connected solid oxide fuel cells having an open end above a combustion zone into which the air feed tubes pass and a closed end near the inlet fuel plenum, where the open end of the fuel cells rest upon and within a separate combination ceramic seal and bundle support contained in a ceramic support casting, where at least one flexible cushion ceramic band seal located between the recuperator and fuel cells protects and controls horizontal thermal expansion, and where the fuel cells operate in the fuel cell mode and where the base support and bottom ceramic air exhaust manifolds carry from 85% to all of the weight of the generator.

  7. Stratification of particulate and VOC pollutants in horizontal-flow-paint spray booths. Report for September 1988-October 1989

    SciTech Connect (OSTI)

    Darvin, C.H.

    1990-01-01

    The paper discusses stratification of particulate and volatile organic compound (VOC) pollutants in horizontal flow paint spray booths, as part of a joint U.S. Air Force/EPA research and development program on emissions from paint spray booths. The test program discussed in the paper was designed to characterize the pollutants both within and exiting a typical back-draw booth for which emissions control strategies are being developed. The results of one series of tests indicate that the pollutants, both particulate and VOC, fall to the lower level of the booth or stratify at the level at which they were generated. This might be expected since the densities of typical pollutants found in spray booths are greater than air. The results showed, however, that the concentration of pollutants in the lower level prior to exiting the booth was significantly greater than expected. Data indicated that, for the 16 ft (4.9 m) high booth tested, the concentration at the exit of the booth below the 8 ft (2.4 m) level was 5-25 times greater than the concentration above that level. The importance of these findings is that it might be possible to partition a booth's air flow into two zones, one lean and the other concentrated. The concentrated zone could be directed to a proportionally smaller VOC control system of significantly less capital and operating cost.

  8. Development and Verification of a Computational Fluid Dynamics Model of a Horizontal-Axis Tidal Current Turbine

    SciTech Connect (OSTI)

    Lawson, Mi. J.; Li, Y.; Sale, D. C.

    2011-01-01

    This paper describes the development of a computational fluid dynamics (CFD) methodology to simulate the hydrodynamics of horizontal-axis tidal current turbines (HATTs). First, an HATT blade was designed using the blade element momentum method in conjunction with a genetic optimization algorithm. Several unstructured computational grids were generated using this blade geometry and steady CFD simulations were used to perform a grid resolution study. Transient simulations were then performed to determine the effect of time-dependent flow phenomena and the size of the computational timestep on the numerical solution. Qualitative measures of the CFD solutions were independent of the grid resolution. Conversely, quantitative comparisons of the results indicated that the use of coarse computational grids results in an under prediction of the hydrodynamic forces on the turbine blade in comparison to the forces predicted using more resolved grids. For the turbine operating conditions considered in this study, the effect of the computational timestep on the CFD solution was found to be minimal, and the results from steady and transient simulations were in good agreement. Additionally, the CFD results were compared to corresponding blade element momentum method calculations and reasonable agreement was shown. Nevertheless, we expect that for other turbine operating conditions, where the flow over the blade is separated, transient simulations will be required.

  9. Laboratory development and field application of a novel water-based drill-in fluid for geopressured horizontal wells

    SciTech Connect (OSTI)

    Dobson, J.W.; Harrison, J.C.; Hale, A.H.

    1996-12-31

    Research has identified a novel water-based drill-in fluid for drilling and completing geopressured horizontal wells. This fluid has a unique combination of properties which make it especially suitable for geopressured applications. They include the use of calcium and/or zinc bromide as a base brine, minimal concentration of calcium carbonate as bridging material, low plastic viscosity, tight fluid loss control, good filter cake properties, and excellent return permeability. This drill-in fluid has been used successfully to drill a 1,200 foot production interval, 4.75 inch diameter wellbore in the Gulf of Mexico with a system weight of 13.2 lbm/gal, bottom hole temperature of 185{degrees} F., and a 1400 to 1700 psi overbalance. The system functioned very well in both the drilling and completion operations. Fluid rheology was easily maintainable and the hole conditions were excellent without torque or drag problems. Initial production data suggests that the well is producing at expected rates with low drawdown pressure.

  10. RP Global Spain S A Minicentrales | Open Energy Information

    Open Energy Info (EERE)

    RP Global Spain S A Minicentrales Jump to: navigation, search Name: RP Global Spain S.A. (Minicentrales) Place: Madrid, Spain Zip: E - 28036 Product: The Spanish arm of RP Global,...

  11. EA-390 Global Pure Energy, LLC | Department of Energy

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

    EA-390 Global Pure Energy, LLC Order authorizing Global Pure Energy to export electric energy to Mexico. PDF icon EA-390 Global Pure Energy.pdf More Documents & Publications ...

  12. BETR Global - A geographically explicit global-scale multimedia contaminant fate model

    SciTech Connect (OSTI)

    Macleod, M.; Waldow, H. von; Tay, P.; Armitage, J. M.; Wohrnschimmel, H.; Riley, W.; McKone, T. E.; Hungerbuhler, K.

    2011-04-01

    We present two new software implementations of the BETR Global multimedia contaminant fate model. The model uses steady-state or non-steady-state mass-balance calculations to describe the fate and transport of persistent organic pollutants using a desktop computer. The global environment is described using a database of long-term average monthly conditions on a 15{sup o} x 15{sup o} grid. We demonstrate BETR Global by modeling the global sources, transport, and removal of decamethylcyclopentasiloxane (D5).

  13. Cooley joins Y-12's Global Security and Strategic Partnerships...

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    globe." Global Security Cooley joins Y-12's Global Security and Strategic Partnerships Manufacturing and Technical Services Nuclear Material Recovery Nuclear Detection and...

  14. 2010 Hydrogen and Fuel Cell Global Commercialization & Development...

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

    Hydrogen and Fuel Cell Global Commercialization & Development Update 2010 Hydrogen and Fuel Cell Global Commercialization & Development Update This report outlines the role ...

  15. GWPS Global Wind Power Systems | Open Energy Information

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    GWPS Global Wind Power Systems Jump to: navigation, search Name: GWPS (Global Wind Power Systems) Place: Hamburg, Germany Zip: 20095 Sector: Wind energy Product: Company...

  16. The Global Energy Challenge (Conference) | SciTech Connect

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    Global Energy Challenge Citation Details In-Document Search Title: The Global Energy Challenge You are accessing a document from the Department of Energy's (DOE) SciTech ...

  17. Tag: global security | Y-12 National Security Complex

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    Global Security Global Security Analysis and Training Program Sr. Manager Toby Williams describes the GSAT program and its important role to combat radiological terrorism....

  18. Tag: Global Security | Y-12 National Security Complex

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    Global Security Global Security Analysis and Training Program Sr. Manager Toby Williams describes the GSAT program and its important role to combat radiological terrorism....

  19. UNEP Global Trends in Sustainable Energy Investment 2009 Report...

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  20. UNEP-Global Trends in Renewable Energy Investment 2011 | Open...

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    Global Trends in Renewable Energy Investment 2011 Jump to: navigation, search Tool Summary LAUNCH TOOL Name: UNEP-Global Trends in Renewable Energy Investment 2011 AgencyCompany...

  1. Global Nuclear Futures Program Manager, Sandia National Laboratories...

    National Nuclear Security Administration (NNSA)

    Global Nuclear Futures Program Manager, Sandia National Laboratories Tom Sanders Tom Sanders Tom Sanders, president of the American Nuclear Society and manager of Global Nuclear ...

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    GE Global Research Sourcing External Document & Process Repository Home > GE Global Research Sourcing External Document & Process Repository Supplier Integrity Guide Purchase Order...

  3. Wildfires may contribute more to global warming than previously...

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    Wildfires may contribute more to global warming Wildfires may contribute more to global warming than previously predicted They suggest that fire emissions could contribute a lot...

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    Global Warming Study Group Jump to: navigation, search Name: North Florida Global Warming Study Group Address: 8342 Compass Rose Dr S Place: Jacksonville, Florida Zip: 32216 Year...

  5. Demonstration of Next Generation PEM CHP Systems for Global Markets...

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    Demonstration of Next Generation PEM CHP Systems for Global Markets Using PBI Membrane Technology Demonstration of Next Generation PEM CHP Systems for Global Markets Using PBI ...

  6. Global Best Practice in Renewable Energy Policy Making Workshop...

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    Global Best Practice in Renewable Energy Policy Making Workshop (Redirected from Global Best Practice in Renewable Energy Policy Making) Jump to: navigation, search Tool Summary...

  7. Global Best Practice in Renewable Energy Policy Making Workshop...

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    Global Best Practice in Renewable Energy Policy Making Workshop Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Global Best Practice in Renewable Energy Policy Making...

  8. Potential Effect of Pollutantn Emissions on Global Warming: First...

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

    Potential Effect of Pollutantn Emissions on Global Warming: First Comparisong Using External Costs on Urban Buses Potential Effect of Pollutantn Emissions on Global Warming: First ...

  9. Scientific American: "Tall Trees Sucked Dry by Global Warming...

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    Scientific American: "Tall Trees Sucked Dry by Global Warming" Scientific American: "Tall Trees Sucked Dry by Global Warming" Climate change will challenge tall trees like ...

  10. Scientific American: "Tall Trees Sucked Dry by Global Warming...

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

    Scientific American: "Tall Trees Sucked Dry by Global Warming" June 7, 2015 Scientific American: "Tall Trees Sucked Dry by Global Warming" A well-known scientific principle ...

  11. Guangdong Global Power and Water Industries Ltd | Open Energy...

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    Global Power and Water Industries Ltd Jump to: navigation, search Name: Guangdong Global Power and Water Industries Ltd Place: Meizhou, Guangdong Province, China Sector: Solar...

  12. Financing a Global Deal on Climate Change | Open Energy Information

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    Financing a Global Deal on Climate Change Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Financing a Global Deal on Climate Change AgencyCompany Organization: United...

  13. Pew Center on Global Climate Change | Open Energy Information

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    Pew Center on Global Climate Change Jump to: navigation, search Name: Pew Center on Global Climate Change Place: Arlington, Virginia Zip: 22201 Product: Established in 1998 as a...

  14. Financing Global Climate Change Mitigation | Open Energy Information

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    Global Climate Change Mitigation Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Financing Global Climate Change Mitigation AgencyCompany Organization: United Nations...

  15. Burkina Faso-National Adaptation Plan Global Support Programme...

    Open Energy Info (EERE)

    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  16. Global Timber Market and Forestry Data Project | Open Energy...

    Open Energy Info (EERE)

    data has been used in analysis should visit the Forests, Economics and Global Climate Change website." References "Global Timber Market and Forestry Data Project" Retrieved...

  17. Djibouti-National Adaptation Plan Global Support Programme (NAP...

    Open Energy Info (EERE)

    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  18. Central African Republic-National Adaptation Plan Global Support...

    Open Energy Info (EERE)

    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  19. Niger-National Adaptation Plan Global Support Programme (NAP...

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    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  20. Rwanda-National Adaptation Plan Global Support Programme (NAP...

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    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  1. Lesotho-National Adaptation Plan Global Support Programme (NAP...

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    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  2. Liberia-National Adaptation Plan Global Support Programme (NAP...

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    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  3. Malawi-National Adaptation Plan Global Support Programme (NAP...

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    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  4. Comoros-National Adaptation Plan Global Support Programme (NAP...

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    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  5. Tanzania-National Adaptation Plan Global Support Programme (NAP...

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    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  6. Bangladesh-National Adaptation Plan Global Support Programme...

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    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  7. The Gambia-National Adaptation Plan Global Support Programme...

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    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  8. Democratic Republic of Congo-National Adaptation Plan Global...

    Open Energy Info (EERE)

    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  9. Uganda-National Adaptation Plan Global Support Programme (NAP...

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    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  10. Mozambique-National Adaptation Plan Global Support Programme...

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    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  11. Mauritania-National Adaptation Plan Global Support Programme...

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    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  12. Sudan-National Adaptation Plan Global Support Programme (NAP...

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    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  13. Cambodia-National Adaptation Plan Global Support Programme (NAP...

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    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  14. Benin-National Adaptation Plan Global Support Programme (NAP...

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    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  15. gas-hydrate-global-assessment | netl.doe.gov

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

    gas-hydrate-global-assessment Frozen Heat: A Global Outlook on Methane Hydrate cover of executive summary The United Nations Environmental Programme released this new, two-volume...

  16. Solar Thin Films Inc formerly American United Global Inc | Open...

    Open Energy Info (EERE)

    Films Inc formerly American United Global Inc Jump to: navigation, search Name: Solar Thin Films Inc (formerly American United Global Inc) Place: New York, New York Zip: 10038...

  17. Global Science Gateway Agreement Signed in London | Department...

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

    Global Science Gateway Agreement Signed in London Global Science Gateway Agreement Signed in London January 22, 2006 - 10:15am Addthis DOE Partners With British Library on...

  18. Supercomputers Fuel Global High-Resolution Climate Models

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    Supercomputers Fuel Global High-Resolution Climate Models Supercomputers Fuel Global High-Resolution Climate Models Berkeley Lab Researcher Says Climate Science is Entering New ...

  19. Global Catastrophes in Perspective: Asteroid Impacts vs. Climate...

    Office of Scientific and Technical Information (OSTI)

    Global Catastrophes in Perspective: Asteroid Impacts vs. Climate Change. Citation Details In-Document Search Title: Global Catastrophes in Perspective: Asteroid Impacts vs. Climate ...

  20. Secretary Bodman Meets with Global Energy Ministers at the Internation...

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

    Global Energy Ministers at the International Energy Forum in Qatar Secretary Bodman Meets with Global Energy Ministers at the International Energy Forum in Qatar April 24, 2006 - ...

  1. Global Nuclear Energy Partnership Members Convene in Jordan For...

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

    Members Convene in Jordan For Second Steering Group Meeting Global Nuclear Energy ... of the Global Nuclear Energy Partnership's (GNEP's) second Steering Group meeting. ...

  2. 2nd Global Nuclear Energy Partnership Ministerial Opening Session...

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

    2nd Global Nuclear Energy Partnership Ministerial Opening Session 2nd Global Nuclear Energy Partnership Ministerial Opening Session September 16, 2007 - 2:41pm Addthis Remarks As...

  3. Global Waste to Energy Conversion Company GWECC | Open Energy...

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    Waste to Energy Conversion Company GWECC Jump to: navigation, search Name: Global Waste to Energy Conversion Company (GWECC) Place: Washington, DC Product: GWECC is a global...

  4. AIG Global Alternative Energy Practice | Open Energy Information

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    AIG Global Alternative Energy Practice Jump to: navigation, search Name: AIG Global Alternative Energy Practice Place: New York, New York Zip: 10038 Sector: Renewable Energy...

  5. SBIR and Global Trade Summit Presentation | Department of Energy

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

    SBIR and Global Trade Summit Presentation SBIR and Global Trade Summit Presentation Presentation from the July 26, 2012 trade summit in Uncasville, Connecticut, presented by the ...

  6. Global Simulation of Plasma Microturbulence at the Petascale...

    Office of Scientific and Technical Information (OSTI)

    Global Simulation of Plasma Microturbulence at the Petascale & Beyond (Optimizing the GTC ... Citation Details In-Document Search Title: Global Simulation of Plasma Microturbulence at ...

  7. Estimating Carbon Supply Curves for Global Forests and Other...

    Open Energy Info (EERE)

    Estimating Carbon Supply Curves for Global Forests and Other Land Uses Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Estimating Carbon Supply Curves for Global Forests...

  8. Global health response more accurate with automated influenza...

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

    Global health response more accurate with automated influenza surveillance Global health response more accurate with automated influenza surveillance Public health officials will...

  9. Accord Global Environment Technology Co Ltd | Open Energy Information

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    Accord Global Environment Technology Co Ltd Place: Beijing, China Zip: 100022 Sector: Services Product: Accord Global Environmental Technology Co Ltd (AGET) is an independent...

  10. ORAU Science Education Program (SEP) Global Change Education...

    Energy Savers [EERE]

    ORAU Science Education Program (SEP) Global Change Education Program (GCEP) PIA, Office of Information Resources ORAU Science Education Program (SEP) Global Change Education...

  11. ORAU Science Education Program (SEP) Global Change Education...

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

    ORAU Science Education Program (SEP) Global Change Education Program (GCEP) PIA, Office of Information Resources ORAU Science Education Program (SEP) Global Change Education ...

  12. Preliminary Notice of Violation, URS Global Management & Operations...

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    URS Global Management & Operations Services - NEA-2011-04 Preliminary Notice of Violation, URS Global Management & Operations Services - NEA-2011-04 September 1, 2011 Issued to ...

  13. Improved Miscible Nitrogen Flood Performance Utilizing Advanced Reservoir Characterization and Horizontal Laterals in a Class I Reservoir - East Binger (Marchand) Unit

    SciTech Connect (OSTI)

    Joe Sinner

    2004-06-30

    The DOE-sponsored project at the East Binger Unit is an investigation into the benefits of reservoir characterization and horizontal wells in this particular setting of geologic and recovery method. The geologic setting is a tight (average porosity of 7% and average permeability of less than 1 millidarcy) Pennsylvanian-age sandstone at about 10,000 feet, and the recovery method is a miscible nitrogen flood. The projected oil recovery of the East Binger Unit, prior to the initiation of this project, was about 25%. Gravity segregation of nitrogen and crude oil was believed to be the principal cause of the poor sweep efficiency, and it was envisioned that with horizontal producing wells in the lower portion of the reservoir and horizontal injection wells near the top, the process could be converted from a lateral displacement process to a vertical displacement/gravity assisted process. Through the characterization and field development work completed in Budget Periods 1 and 2, Binger Operations, LLC (BOL) has developed a different interpretation of the sweep problem as well as a different approach to improving recovery. The sweep problem is now believed to be one of an areal nature, due to a combination of natural and hydraulic fracturing. Vertical wells have provided a much better economic return than have the horizontal wells. The natural and hydraulic fracturing manifests itself as a direction of higher permeability, and the flood is being converted to a line drive flood aligned with this orientation. Consistent with this concept, horizontal wells have been drilled along the line of the fracture orientation, such that hydraulic fracturing leads to 'longitudinal' fractures, in line with the wellbore. As such, the hydraulically fractured horizontal wells are not significantly different than hydraulically fractured vertical wells - save for the potential for a much longer fracture face. This Topical Report contains data from new wells, plus new and updated production, pressure, and gas analysis data that was not included in the Topical Report provided at the end of Budget Period 1. The analysis and interpretation of these data are provided in the many technical reports submitted throughout this project.

  14. Integrated approach towards the application of horizontal wells to improve waterflooding performance. Annual report, January 1, 1997--December 31, 1997

    SciTech Connect (OSTI)

    Kelkar, M.; Kerr, D.

    1998-05-01

    This annual report describes the progress during the fifth year of the project on ``Integrated Approach Towards the Application of Horizontal Wells to Improve Waterflooding Performance``. This project is funded under the Department of Energy`s Class 1 program which is targeted towards improving the reservoir performance of mature oil fields located in fluvially dominated deltaic geological environments. The project involves using an integrated approach to characterize the reservoir followed by proposing an appropriate reservoir management strategy to improve the field performance. In the first stage of the project, the type of data the authors integrated include cross borehole seismic surveys, geological interpretation based on the logs and the cores, and the engineering information. In contrast, during the second stage of the project, they intend to use only conventional data to construct the reservoir description. This report covers the results of the implementation from the first stage of the project. It also discusses the work accomplished so far for the second stage of the project. The production from the Self Unit (location of Stage 1) has sustained an increase of 30 bbls/day over more than two years. The authors have collected available core, log and production data from Section 16 in the Berryhill Glenn Unit and have finished the geological description. Based on the geological description and the associated petrophysical properties, they have identified the areas for the most potential. These areas include Tracts 7 and 9. By conducting a detailed flow simulation on both these tracts, and evaluating the economic performance of various alternatives, they have made recommendations for both these tracts. At present, the authors are in the process of implementing the proposed reservoir management strategy in Tract 9.

  15. Global climate change and international security.

    SciTech Connect (OSTI)

    Karas, Thomas H.

    2003-11-01

    This report originates in a workshop held at Sandia National Laboratories, bringing together a variety of external experts with Sandia personnel to discuss 'The Implications of Global Climate Change for International Security.' Whatever the future of the current global warming trend, paleoclimatic history shows that climate change happens, sometimes abruptly. These changes can severely impact human water supplies, agriculture, migration patterns, infrastructure, financial flows, disease prevalence, and economic activity. Those impacts, in turn, can lead to national or international security problems stemming from aggravation of internal conflicts, increased poverty and inequality, exacerbation of existing international conflicts, diversion of national and international resources from international security programs (military or non-military), contribution to global economic decline or collapse, or international realignments based on climate change mitigation policies. After reviewing these potential problems, the report concludes with a brief listing of some research, technology, and policy measures that might mitigate them.

  16. Global coherence of dust density waves

    SciTech Connect (OSTI)

    Killer, Carsten; Melzer, Andr

    2014-06-15

    The coherence of self-excited three-dimensional dust density waves has been experimentally investigated by comparing global and local wave properties. For that purpose, three-dimensional dust clouds have been confined in a radio frequency plasma with thermophoretic levitation. Global wave properties have been measured from the line-of-sight integrated dust density obtained from homogenous light extinction measurements. Local wave properties have been obtained from thin, two-dimensional illuminated laser slices of the cloud. By correlating the simultaneous global and local wave properties, the spatial coherence of the waves has been determined. We find that linear waves with small amplitudes tend to be fragmented, featuring an incoherent wave field. Strongly non-linear waves with large amplitudes, however, feature a strong spatial coherence throughout the dust cloud, indicating a high level of synchronization.

  17. Global Material Security | National Nuclear Security Administration

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    Outlook Mary Novak Managing Director IHS Global Insight Copyright © 2010 IHS Global Insight, Inc. Overview: Energy Sector Transformation Underway * The recession has hit energy demand hard, and aggregate energy demand is not expected to return to 2007 levels until 2018. * Oil and natural gas prices will both rise over the long-term, but the price trends will diverge with natural gas prices rising slowly due to the development of shale gas. * This forecast does not include a GHG cap-and-trade

  18. Changing Global Petroleum Product Trade Flows

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

    Changing Global Petroleum Product Trade Flows For U.S. Energy Information Administration Conference July 14, 2014 | Washington, D.C. By Susan Grissom, U.S. Energy Information Administration In 2011, the U.S. became a net exporter of petroleum products Changing Global Petroleum Product Trade Flows, EIA Conference 2014 2 U.S. petroleum product imports and exports million barrels per day Source: EIA, Annual Energy Outlook 2014 Early Release -4 -3 -2 -1 0 1 2 3 4 1950 1960 1970 1980 1990 2000 2010

  19. Global Offshore Lubricants Market | OpenEI Community

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    Global Offshore Lubricants Market Home There are currently no posts in this category. Syndicate content...

  20. Global Unconventional Gas Market | OpenEI Community

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    Global Unconventional Gas Market Home There are currently no posts in this category. Syndicate content...

  1. Global Biomass Power Generation Market | OpenEI Community

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    Global Biomass Power Generation Market Home There are currently no posts in this category. Syndicate...

  2. Improved Miscible Nitrogen Flood Performance Utilizing Advanced Reservoir Characterization and Horizontal Laterals in a Class I Reservoir - East Binger (Marchand) Unit

    SciTech Connect (OSTI)

    Joe Sinner

    2006-06-30

    The reservoir characterization and investigation of the benefits of horizontal wells in the East Binger Unit miscible nitrogen flood as been completed. A significant work program was implemented from 2002 to 2005 in an effort to reduce gas cycling and economically increase ultimate oil recovery. Horizontal and vertical infill wells were drilled and existing producers were converted to injection. Due to successful infill drilling based on the improved flow characterization, more drilling was done than originally planned, and further drilling will occur after the project is completed. Through the drilling of wells and reservoir characterization work, it was determined that poor areal sweep efficiency is the primary factor causing nitrogen cycling and limiting oil recovery. This is in contrast to the perception prior to the initiation of development, which was that gravity segregation was causing poor vertical sweep efficiency. Although not true of all infill wells, most were drilled in areas with little sweep and came online producing gas with much lower nitrogen contents than previously drilled wells in the field and in the pilot area. Seven vertical and three horizontal wells were drilled in the pilot area throughout the project. As previously reported, the benefits of horizontal drilling were found to be insufficient to justify their increased cost. Nitrogen recycle, defined as nitrogen production as a percentage of injection, decreased from 72% prior to initiation of the project to about 25% before rising back to a current rate of 40%. Injection into the pilot area, despite being limited at times by problems in the Air Separation Unit of the Nitrogen Management Facility, increased 60% over levels prior to the project. Meanwhile, gas production and nitrogen content of produced gas both decreased.

  3. IMPROVED MISCIBLE NITROGEN FLOOD PERFORMANCE UTILIZING ADVANCED RESERVOIR CHARACTERIZATION AND HORIZONTAL LATERALS IN A CLASS I RESERVOIR - EAST BINGER (MARCHAND) UNIT

    SciTech Connect (OSTI)

    Joe Sinner

    2002-03-26

    The objective of this project is two-fold. It will demonstrate use of nitrogen as a widely available, cost-effective and environmentally superior injectant for miscible floods. It will also demonstrate the effectiveness of horizontal wellbores in reducing gas breakthrough and cycling. It is expected that the demonstration will lead to implementation of nitrogen injection projects in areas without readily available carbon dioxide sources. Technology transfer will occur throughout the project.

  4. Design and Implementation of a CO2 Flood Utilizing Advanced Reservoir Characterization and Horizontal Injection Wells In a Shallow Shelf Carbonate Approaching Waterflood Depletion, Class II

    SciTech Connect (OSTI)

    Wier, Don R. Chimanhusky, John S.; Czirr, Kirk L.; Hallenbeck, Larry; Gerard, Matthew G.; Dollens, Kim B.; Owen, Rex; Gaddis, Maurice; Moshell, M.K.

    2002-11-18

    The purpose of this project was to economically design an optimum carbon dioxide (CO2) flood for a mature waterflood nearing its economic abandonment. The original project utilized advanced reservoir characterization and CO2 horizontal injection wells as the primary methods to redevelop the South Cowden Unit (SCU). The development plans; project implementation and reservoir management techniques were to be transferred to the public domain to assist in preventing premature abandonment of similar fields.

  5. IMPROVED MISCIBLE NITROGEN FLOOD PERFORMANCE UTILIZING ADVANCED RESERVOIR CHARACTERIZATION AND HORIZONTAL LATERALS IN A CLASS I RESERVOIR -- EAST BINGER (MARCHAND) UNIT

    SciTech Connect (OSTI)

    Joe Sinner

    2004-08-24

    Budget Period 2 of the East Binger Unit (''EBU'') DOE Project has been. Recent activities included additional data gathering and project monitoring, plus initiation of work on an SPE paper on the modeling efforts of the project. Early production performance suggests horizontal wells do not provide sufficient additional production over vertical wells to justify their incremental cost. It will take more time to evaluate the impact of the horizontal wells on sweep and ultimate recovery, but it is unlikely that an improvement in recovery will be sufficient to make the overall economic value of horizontal wells greater than the economic value of vertical wells. Monitoring of overall performance of the pilot area continues. Overall response to the various projects continues to be very favorable. Injection into the pilot area has nearly doubled, while gas production and nitrogen content of produced gas have both decreased. Nitrogen recycle within the pilot area has dropped from 60% to 20%. Efforts to further disseminate knowledge gained through this project, by means of technical paper presentations to industry groups, are underway. Project monitoring and technology transfer will be focus areas of Budget Period 3.

  6. IMPROVED MISCIBLE NITROGEN FLOOD PERFORMANCE UTILIZING ADVANCED RESERVOIR CHARACTERIZATION AND HORIZONTAL LATERALS IN A CLASS I RESERVOIR - EAST BINGER (MARCHAND) UNIT

    SciTech Connect (OSTI)

    Joe Sinner

    2003-01-31

    Implementation of the work program of Budget Period 2 of the East Binger Unit (''EBU'') DOE Project continues. Major development work planned for the project includes the drilling of three horizontal production and one vertical injection wells, the conversion of five wells from production to injection service, and the expansion of injection capacity at the nitrogen management facility. Other work items include initiation of project monitoring and continued reservoir simulation. EBU 74G-2, the injection well planned to support the production of EBU 64-3H, has been drilled. Completion was underway at the time of this report. EBU 64-3H was fracture-stimulated during the period, further increasing production from this new horizontal well. Drilling of the final two wells of the pilot project is planned for 2003. Both are planned as horizontal producing wells. Work also began on projects aimed at increasing injection in the pilot area. The project to add compression and increase injection capacity at the nitrogen management facility was initiated, with completion targeted for March 2003. Additional producer-to-injector conversions are expected to be implemented around the same time. The revised history match of the simulation model has been completed, and work has begun to evaluate options with forecast simulations. The quality of the history match is significantly improved over the prior match. The predicted distribution of remaining reserves in the field is significantly changed. Decisions on projects planned for implementation later in Budget Period 2 will be guided by new forecasts.

  7. Improved Miscible Nitrogen Flood Performance Utilizing Advanced Reservoir Characterization and Horizontal Laterals in a Class I Reservoir--East Binger (Marchand) Unit

    SciTech Connect (OSTI)

    Joe Sinner

    2006-05-18

    A significant work program was implemented from 2002 to 2005 in the East Binger Unit (''EBU'') miscible nitrogen injection project in an effort to reduce gas cycling and economically increase ultimate oil recovery. This work included the drilling of new wells, both horizontal and vertical, as well as pattern realignment through producer-to-injector conversions. Monitoring of overall performance of the pilot area continues. Response to the various projects continues to be very favorable. Injection into the pilot area, despite being limited at times by problems in the Air Separation Unit of the Nitrogen Management Facility, has increased an average of 60% over levels prior to the project. Meanwhile, gas production and nitrogen content of produced gas have both decreased. After decreasing to 20-25% early in the project, nitrogen recycle (produced nitrogen volume divided by injected nitrogen volume) within the pilot area has risen to about 40%, still far below the 72% prior to initiation of the project. Poor areal sweep efficiency appears to be the primary cause of nitrogen cycling. Seven vertical and three horizontal wells have been drilled in the pilot area throughout the project, and most have had initial produced gas oil ratios and gas nitrogen contents significantly below the field averages. Given similar reservoir conditions of net thickness and gas sweep, vertical wells are performing nearly as well as horizontal wells. Additional vertical well drilling was completed in 2005 following the success of wells drilled from 2002 through 2004.

  8. Improved Miscible Nitrogen Flood Performance Utilizing Advanced Reservoir Characterization and Horizontal Laterals in a Class I Reservoir -- East Binger (Marchand) Unit

    SciTech Connect (OSTI)

    Joe Sinner

    2006-03-23

    A significant work program was implemented from 2002 to 2005 in the East Binger Unit (''EBU'') miscible nitrogen injection project in an effort to reduce gas cycling and economically increase ultimate oil recovery. This work included the drilling of new wells, both horizontal and vertical, as well as pattern realignment through producer-to-injector conversions. Monitoring of overall performance of the pilot area continues. Response to the various projects continues to be very favorable. Injection into the pilot area, despite being limited at times by problems in the Air Separation Unit of the Nitrogen Management Facility, has increased an average of 50% over levels prior to the project. Meanwhile, gas production and nitrogen content of produced gas have both decreased. After decreasing to 20-25% early in the project, nitrogen recycle (produced nitrogen volume divided by injected nitrogen volume) within the pilot area has risen back to about 42%, still far below the 72% prior to initiation of the project. Poor areal sweep efficiency appears to be the primary cause of nitrogen cycling. Seven vertical and three horizontal wells have been drilled in the pilot area throughout the project, and most have had initial produced gas oil ratios and gas nitrogen contents significantly below the field averages. Given similar reservoir conditions of net thickness and gas sweep, vertical wells are performing nearly as well as horizontal wells. Additional vertical well drilling was completed in 2005 following the success of wells drilled from 2002 through 2004.

  9. Impact of horizontal resolution on simulation of precipitation extremes in an aqua-planet version of the Community Atmosphere Model (CAM)

    SciTech Connect (OSTI)

    Li, F.; Collins, W.D.; Wehner, M.F.; Williamson, D.L.; Olson, J.G.; Algieri, C.

    2011-03-01

    One key question regarding current climate models is whether the projection of climate extremes converges to a realistic representation as the spatial and temporal resolutions of the model are increased. Ideally the model extreme statistics should approach a fixed distribution once the resolutions are commensurate with the characteristic length and time scales of the processes governing the formation of the extreme phenomena of interest. In this study, a series of AGCM runs with idealized 'aquaplanet-steady-state' boundary conditions have been performed with the Community Atmosphere Model CAM3 to investigate the effect of horizontal resolution on climate extreme simulations. The use of the aquaplanet framework highlights the roles of model physics and dynamics and removes any apparent convergence in extreme statistics due to better resolution of surface boundary conditions and other external inputs. Assessed at a same large spatial scale, the results show that the horizontal resolution and time step have strong effects on the simulations of precipitation extremes. The horizontal resolution has a much stronger impact on precipitation extremes than on mean precipitation. Updrafts are strongly correlated with extreme precipitation at tropics at all the resolutions, while positive low-tropospheric temperature anomalies are associated with extreme precipitation at mid-latitudes.

  10. Financing Innovation to Address Global Climate Change

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy’s Loan Programs Office (LPO) is helping address the global challenge of climate change by providing critical financing needed to deploy some of the world’s largest and most innovative clean energy and advanced technology vehicles manufacturing projects, preventing more than 25 million metric tons of CO2 emissions to date.

  11. Global Alignment System for Large Genomic Sequencing

    Energy Science and Technology Software Center (OSTI)

    2002-03-01

    AVID is a global alignment system tailored for the alignment of large genomic sequences up to megabases in length. Features include the possibility of one sequence being in draft form, fast alignment, robustness and accuracy. The method is an anchor based alignment using maximal matches derived from suffix trees.

  12. Global temperature deviations as a random walk

    SciTech Connect (OSTI)

    Karner, O.

    1996-12-31

    Surface air temperature is the main parameter to represent the earth`s contemporary climate. Several historical temperature records on a global/monthly basis are available. Time-series analysis shows that they can be modelled via autoregressive moving average models closely connected to the classical random walk model. Fitted models emphasize a nonstationary character of the global/monthly temperature deviation from a certain level. The nonstationarity explains all trends and periods, found in the last century`s variability of global mean temperature. This means that the short-term temperature trends are inevitable and may have little in common with a currently increasing carbon dioxide amount. The calculations show that a reasonable understanding of the contemporary global mean climate is attainable, assuming random forcing to the climate system and treating temperature deviation as a response to it. The forcings occur due to volcanic eruptions, redistribution of cloudiness, variations in snow and ice covered areas, changes in solar output, etc. Their impact can not be directly estimated from changes of the earth`s radiation budget at the top of the atmosphere, because actual measurements represent mixture of the forcings and responses. Thus, it is impossible empirically to separate the impact of one particular forcing (e.g., that due to increase of CO{sub 2} amount) from the sequence of all existing forcings in the earth climate system. More accurate modelling involving main feedback loops is necessary to ease such a separation.

  13. Pax Global: Noncompliance Determination (2013-SE-1413)

    Broader source: Energy.gov [DOE]

    DOE issued a Notice of Noncompliance Determination to Pax Global, Inc. finding that freezer basic models (1) Crosley CCF51; (2) Crosley CCF69; (3) Crosley CCF106; and (4) Daewoo DCF-106W do not comport with the energy conservation standards.

  14. Global biosurveillance: enabling science and technology. Workshop background and motivation: international scientific engagement for global security

    SciTech Connect (OSTI)

    Cui, Helen H

    2011-01-18

    Through discussion the conference aims to: (1) Identify core components of a comprehensive global biosurveillance capability; (2) Determine the scientific and technical bases to support such a program; (3) Explore the improvement in biosurveillance to enhance regional and global disease outbreak prediction; (4) Recommend an engagement approach to establishing an effective international community and regional or global network; (5) Propose implementation strategies and the measures of effectiveness; and (6) Identify the challenges that must be overcome in the next 3-5 years in order to establish an initial global biosurveillance capability that will have significant positive impact on BioNP as well as public health and/or agriculture. There is also a look back at the First Biothreat Nonproliferation Conference from December 2007. Whereas the first conference was an opportunity for problem solving to enhance and identify new paradigms for biothreat nonproliferation, this conference is moving towards integrated comprehensive global biosurveillance. Main reasons for global biosurveillance are: (1) Rapid assessment of unusual disease outbreak; (2) Early warning of emerging, re-emerging and engineered biothreat enabling reduced morbidity and mortality; (3) Enhanced crop and livestock management; (4) Increase understanding of host-pathogen interactions and epidemiology; (5) Enhanced international transparency for infectious disease research supporting BWC goals; and (6) Greater sharing of technology and knowledge to improve global health.

  15. Recovery of bypassed oil in the Dundee Formation using horizontal drains, Quarterly technical report, 1/1/97--3/31/97

    SciTech Connect (OSTI)

    1997-03-30

    This Class 11 field project has demonstrated that economic quantities of hydrocarbons can be produced from abandoned or nearly abandoned fields in the Dundee Formation of Central Michigan using horizontal drilling technology. The site selected for the demonstration horizontal well was Crystal Field, a nearly abandoned Dundee oil field in Montcalm County, Michigan. This field had produced over 8 million barrels of oil, mostly in the 1930`s and 1940`s. At the height of development, Crystal Field produced from 193 wells, but by 1995, only seven producing wells remained, each producing less than 10 bbls/day. A horizontal well, the TOW 1-3, drilled as a field demonstration pilot was successful, producing at rate of 100 bbls of oil per day with a zero water cut. Although the well is capable of producing at a rate of 500+ bbls/day, the production rate is being kept low deliberately to try to prevent premature water coning. Cumulative production exceeded 50,000 bbls of oil by the end of April, 1997 and lead to the permitting and licensing of several dozen Dundee wells by project end. Twelve of these permits were for continued development of Crystal Field. Two subsequent wells, the Frost 5-3 and the Happy Holidays 6-3, have not been as successful. Both are currently producing 10 BOPD with 90% water cut. Efforts are underway to determine why these wells are performing so poorly and to see if the situation can be remedied. The reasons for these poor performances of the new wells are not clear at this time. It is possible that the wells entered the Dundee too low and missed pay higher in the section. When the TOW 1-3 was drilled, a vertical probe well was also drilled and cored. That probe well penetrated the pay zone and helped guide the horizontal well. The important lesson may be that vertical probe wells are a crucial step in producing these old fields and should not be eliminated simply to save what amounts to a small incremental cost. Core and logs from the Dundee interval were recovered from a vertical borehole at the same surface location. The addition of several horizontal wells will likely add another 2 million bbls (or more) to the cumulative production of the field over the next few years. If other abandoned Dundee fields are re-developed in a similar manner, the additional oil produced could exceed 80 million barrels. Additional project work involved the characterization of 28 other Dundee fields in Michigan to aid in determining appropriate additional candidates for development through horizontal drilling. Further quantification of reservoir parameters such as importance of fracturing, fracture density, and irregularity of the dolomitized surface at the top of the reservoir will help in designing the optimal strategy for horizontal drilling. The project was a cooperative venture involving the US Department of Energy, Michigan Technological University (MTU), Western Michigan University (WMU), and Terra Energy (now Cronus Development Co.) in Traverse City, MI.

  16. Global crop yield losses from recent warming

    SciTech Connect (OSTI)

    Lobell, D; Field, C

    2006-06-02

    Global yields of the world-s six most widely grown crops--wheat, rice, maize, soybeans, barley, sorghum--have increased since 1961. Year-to-year variations in growing season minimum temperature, maximum temperature, and precipitation explain 30% or more of the variations in yield. Since 1991, climate trends have significantly decreased yield trends in all crops but rice, leading to foregone production since 1981 of about 12 million tons per year of wheat or maize, representing an annual economic loss of $1.2 to $1.7 billion. At the global scale, negative impacts of climate trends on crop yields are already apparent. Annual global temperatures have increased by {approx}0.4 C since 1980, with even larger changes observed in several regions (1). While many studies have considered the impacts of future climate changes on food production (2-5), the effects of these past changes on agriculture remain unclear. It is likely that warming has improved yields in some areas, reduced them in others, and had negligible impacts in still others; the relative balance of these effects at the global scale is unknown. An understanding of this balance would help to anticipate impacts of future climate changes, as well as to more accurately assess recent (and thereby project future) technologically driven yield progress. Separating the contribution of climate from concurrent changes in other factors--such as crop cultivars, management practices, soil quality, and atmospheric carbon dioxide (CO{sub 2}) levels--requires models that describe the response of yields to climate. Studies of future global impacts of climate change have typically relied on a bottom-up approach, whereby field scale, process-based models are applied to hundreds of representative sites and then averaged (e.g., ref 2). Such approaches require input data on soil and management conditions, which are often difficult to obtain. Limitations on data quality or quantity can thus limit the utility of this approach, especially at the local scale (6-8). At the global scale, however, many of the processes and impacts captured by field scale models will tend to cancel out, and therefore simpler empirical/statistical models with fewer input requirements may be as accurate (8, 9). Empirical/statistical models also allow the effects of poorly modeled processes (e.g., pest dynamics) to be captured and uncertainties to be readily quantified (10). Here we develop new, empirical/statistical models of global yield responses to climate using datasets on broad-scale yields, crop locations, and climate variability. We focus on global average yields for the six most widely grown crops in the world: wheat, rice, maize, soybeans, barley, and sorghum. Production of these crops accounts for over 40% of global cropland area (11). 55% of non-meat calories, and over 70% of animal feed (12).

  17. Global Scratch (/global/scratch2 aka $GSCRATCH) will be retired...

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

    aka GSCRATCH) will be retired on October 14 at 12:00 PDT October 9, 2015 by Richard Gerber This is a reminder that the Global Scratch (globalscratch2 aka GSCRATCH) file...

  18. Venture Global Calcasieu Pass, LLC- (Formerly Venture Global LNG, LLC)- 14-88-LNG

    Broader source: Energy.gov [DOE]

    The Office of Fossil Energy gives notice of receipt of an application filed on May 13, 2014, by Venture Global LNG, LLC (VGP) requesting long-term, multi-contract authority to export (in addition...

  19. Global optimization of multicomponent distillation configurations: 2. Enumeration based global minimization algorithm

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

    Nallasivam, Ulaganathan; Shah, Vishesh H.; Shenvi, Anirudh A.; Huff, Joshua; Tawarmalani, Mohit; Agrawal, Rakesh

    2016-02-10

    We present a general Global Minimization Algorithm (GMA) to identify basic or thermally coupled distillation configurations that require the least vapor duty under minimum reflux conditions for separating any ideal or near-ideal multicomponent mixture into a desired number of product streams. In this algorithm, global optimality is guaranteed by modeling the system using Underwood equations and reformulating the resulting constraints to bilinear inequalities. The speed of convergence to the globally optimal solution is increased by using appropriate feasibility and optimality based variable-range reduction techniques and by developing valid inequalities. As a result, the GMA can be coupled with already developedmore » techniques that enumerate basic and thermally coupled distillation configurations, to provide for the first time, a global optimization based rank-list of distillation configurations.« less

  20. Global climate change and international security

    SciTech Connect (OSTI)

    Rice, M.

    1991-01-01

    On May 8--10, 1991, the Midwest Consortium of International Security Studies (MCISS) and Argonne National Laboratory cosponsored a conference on Global Climate Change and International Security. The aim was to bring together natural and social scientists to examine the economic, sociopolitical, and security implications of the climate changes predicted by the general circulation models developed by natural scientists. Five themes emerged from the papers and discussions: (1) general circulation models and predicted climate change; (2) the effects of climate change on agriculture, especially in the Third World; (3) economic implications of policies to reduce greenhouse gas emissions; (4) the sociopolitical consequences of climate change; and (5) the effect of climate change on global security.

  1. New Medical Technology | GE Global Research

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

    Healthcare We're making healthcare accessible for people around the globe, increasing quality of care and expanding medical treatment boundaries. Home > Innovation > Healthcare GE Unveils High-Tech Superhero, GENIUS MAN Created on earth to inspire the next generation of scientists and engineers, a team of GE researchers have created a comic... Read More » The Dirt on the Cleanroom In this short video, take a look inside the GE Global Research cleanroom and meet the team working in this

  2. Robotic Wind Turbine Inspection | GE Global Research

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

    Advances Wind Turbine Inspection Through Robotic Trials 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) GE Advances Wind Turbine Inspection Through Robotic Trials GE Global Research is advancing technology that will make the inspection of wind turbines faster and more reliable for customers. Currently, an inspector

  3. National Institute for Global Environmental Change

    SciTech Connect (OSTI)

    Werth, G.C.

    1992-04-01

    This document is the Semi-Annual Report of the National Institute for Global Environmental Change for the reporting period July 1 to December 31, 1991. The report is in two parts. Part I presents the mission of the Institute, examples of progress toward that mission, a brief description of the revised management plan, and the financial report. Part II presents the statements of the Regional Center Directors along with progress reports of the projects written by the researchers themselves.

  4. Multithreaded Global Address Space Communication Techniques

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

    Multithreaded Global Address Space Communication Techniques for Gyrokinetic Fusion Applications on Ultra-Scale Platforms Robert Preissl Lawrence Berkeley National Laboratory Berkeley, CA, USA 94720 rpreissl@lbl.gov Nathan Wichmann CRAY Inc. St. Paul, MN, USA, 55101 wichmann@cray.com Bill Long CRAY Inc. St. Paul, MN, USA, 55101 longb@cray.com John Shalf Lawrence Berkeley National Laboratory Berkeley, CA, USA 94720 jshalf@lbl.gov Stephane Ethier Princeton Plasma Physics Laboratory Princeton, NJ,

  5. Selected papers for global `95 concerning plutonium

    SciTech Connect (OSTI)

    Sutcliffe, W.G.

    1996-06-14

    This report contains selected papers from the Global `95 Conference ``Evaluation of Emerging Nuclear Fuel Cycle Systems,`` held in Versailles, Sept. 11-14, 1995. The 11 papers in Part I are from ``Benefits and Risks of Reprocessing`` sessions. The 7 papers in Part II are some of the more interesting poster papers that relate to the use of Pu for power generation. Finally, the 3 papers are on the topic of management and disposition of Pu from retired nuclear weapons.

  6. Microsoft Word - Global Harmonization Classifications.docx

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

    Harmonization Classifications: The following is prepared for your understanding of the new Global Harmonization System Physical hazards  H200: Unstable explosive  H201: Explosive; mass explosion hazard  H202: Explosive; severe projection hazard  H203: Explosive; fire, blast or projection hazard  H204: Fire or projection hazard  H205: May mass explode in fire  H220: Extremely flammable gas  H221: Flammable gas  H222: Extremely flammable aerosol  H223: Flammable

  7. Aspen Global Change Institute Summer Science Sessions

    SciTech Connect (OSTI)

    Katzenberger, John; Kaye, Jack A

    2006-10-01

    The Aspen Global Change Institute (AGCI) successfully organized and convened six interdisciplinary meetings over the course of award NNG04GA21G. The topics of the meetings were consistent with a range of issues, goals and objectives as described within the NASA Earth Science Enterprise Strategic Plan and more broadly by the US Global Change Research Program/Our Changing Planet, the more recent Climate Change Program Strategic Plan and the NSF Pathways report. The meetings were chaired by two or more leaders from within the disciplinary focus of each session. 222 scholars for a total of 1097 participants-days were convened under the auspices of this award. The overall goal of each AGCI session is to further the understanding of Earth system science and global environmental change through interdisciplinary dialog. The format and structure of the meetings allows for presentation by each participant, in-depth discussion by the whole group, and smaller working group and synthesis activities. The size of the group is important in terms of the group dynamics and interaction, and the ability for each participant's work to be adequately presented and discussed within the duration of the meeting, while still allowing time for synthesis

  8. Privatization and the globalization of energy markets

    SciTech Connect (OSTI)

    1996-10-01

    This report reviews recent global efforts to privatize energy resources and outlines the opportunities and challenges privatization has presented to U.S. and foreign multinational energy companies. The group of energy companies studied in this report includes the major U.S. petroleum companies and many foreign companies. The foreign companies reviewed include state-run energy enterprises, recently privatized energy enterprises, and foreign multinationals that have been privately held. The privatization of non-petroleum energy industries, such as electricity generation and transmission, natural gas transmission, and coal mining, are also discussed. Overseas investments made by electric companies, natural gas companies, and coal companies are included. The report is organized into six chapters: (1) economics of privatization; (2) petroleum privatization efforts among non-U.S. Organization for Economic Cooperation and Development nations; (3) petroleum privatization efforts in Latin America; (4) privatization in socialist and former socialist regimes; (5) privatization efforts in global electric power generation, transmission, and distribution industries; and (6) privatization and globalization of world coal.

  9. Global-Address Space Networking (GASNet) Library

    Energy Science and Technology Software Center (OSTI)

    2011-04-06

    GASNet (Global-Address Space Networking) is a language-independent, low-level networking layer that provides network-independent, high-performance communication primitives tailored for implementing parallel global address space SPMD languages such as UPC and Titanium. The interface is primarily intended as a compilation target and for use by runtime library writers (as opposed to end users), and the primary goals are high performance, interface portability, and expressiveness. GASNet is designed specifically to support high-performance, portable implementations of global address spacemore » languages on modern high-end communication networks. The interface provides the flexibility and extensibility required to express a wide variety of communication patterns without sacrificing performance by imposing large computational overheads in the interface. The design of the GASNet interface is partitioned into two layers to maximize porting ease without sacrificing performance: the lower level is a narrow but very general interface called the GASNet core API - the design is basedheavily on Active Messages, and is implemented directly on top of each individual network architecture. The upper level is a wider and more expressive interface called GASNet extended API, which provides high-level operations such as remote memory access and various collective operations. This release implements GASNet over MPI, the Quadrics "elan" API, the Myrinet "GM" API and the "LAPI" interface to the IBM SP switch. A template is provided for adding support for additional network interfaces.« less

  10. Computer modeling of the global warming effect

    SciTech Connect (OSTI)

    Washington, W.M.

    1993-12-31

    The state of knowledge of global warming will be presented and two aspects examined: observational evidence and a review of the state of computer modeling of climate change due to anthropogenic increases in greenhouse gases. Observational evidence, indeed, shows global warming, but it is difficult to prove that the changes are unequivocally due to the greenhouse-gas effect. Although observational measurements of global warming are subject to ``correction,`` researchers are showing consistent patterns in their interpretation of the data. Since the 1960s, climate scientists have been making their computer models of the climate system more realistic. Models started as atmospheric models and, through the addition of oceans, surface hydrology, and sea-ice components, they then became climate-system models. Because of computer limitations and the limited understanding of the degree of interaction of the various components, present models require substantial simplification. Nevertheless, in their present state of development climate models can reproduce most of the observed large-scale features of the real system, such as wind, temperature, precipitation, ocean current, and sea-ice distribution. The use of supercomputers to advance the spatial resolution and realism of earth-system models will also be discussed.

  11. IMPROVED MISCIBLE NITROGEN FLOOD PERFORMANCE UTILIZING ADVANCED RESERVOIR CHARACTERIZATION AND HORIZONTAL LATERALS IN A CLASS I RESERVOIR-EAST BINGER (MARCHAND) UNIT

    SciTech Connect (OSTI)

    Joe Sinner

    2004-02-24

    Implementation of the work program of Budget Period 2 of the East Binger Unit (''EBU'') DOE Project is progressing and nearing completion. Two of three planned horizontal wells have been drilled and completed. The third horizontal well will be replaced by two vertical wells, both of which will be drilled in early 2004. Based on costs and performances of all new wells, it is believed that, in the setting of the East Binger Unit, the benefits of horizontal wells do not justify the additional cost. In addition to the drilling of new wells, the project also includes conversions of producing wells to injection service. Four wells have now been converted, and injection in the pilot area has doubled. A fifth planned conversion has been removed from the project. Overall response to the various projects continues to be very favorable. Gas injection into the pilot area has increased from 4.0 MMscf/d prior to development to 8.0 MMscf/d in November, while gas production has decreased from 4.1 MMscf/d to 3.0 MMscf/d. The nitrogen content of produced gas has dropped from 58% to 45%. This has reduced the nitrogen recycle within the pilot area from 60% to under 20%. Meanwhile, pilot area oil production has increased, from 300 bpd prior to development to over 425 bpd in November 2003. This is down from 600 bopd in September because EBU 63-2H has begun to level off and other wells were temporarily down. This incremental rate will increase with the addition of the two vertical wells.

  12. The Global Energy Challenge (Conference) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    The Global Energy Challenge Citation Details In-Document Search Title: The Global Energy Challenge You are accessing a document from the Department of Energy's (DOE) SciTech ...

  13. Stanford- Global Climate and Energy Project | Open Energy Information

    Open Energy Info (EERE)

    :"","visitedicon":"" Hide Map References: Stanford- Global Climate and Energy Project Web Site1 This article is a stub. You can help OpenEI by expanding it. Stanford- Global...

  14. Success of Geothermal Wells: A Global Study | Open Energy Information

    Open Energy Info (EERE)

    of Geothermal Wells: A Global Study Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Success of Geothermal Wells: A Global Study Abstract This report...

  15. Global Marine Renewable Energy Conference (GMREC) | OpenEI Community

    Open Energy Info (EERE)

    Global Marine Renewable Energy Conference (GMREC) Home > Groups > Water Power Forum Kch's picture Submitted by Kch(24) Member 3 April, 2013 - 14:26 The 6th annual Global Marine...

  16. Global Solar Trackers Market | OpenEI Community

    Open Energy Info (EERE)

    Global Solar Trackers Market Home John55364's picture Submitted by John55364(100) Contributor 12 May, 2015 - 03:54 Solar Trackers Market - Global Industry Analysis, Size, Share,...

  17. Global Nuclear Energy Partnership Triples in Size to 16 Members...

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

    Global Nuclear Energy Partnership Triples in Size to 16 Members Global Nuclear Energy Partnership Triples in Size to 16 Members September 16, 2007 - 2:33pm Addthis Nations Sign On...

  18. Passionate Technologists Wanted at ASME Turbo Expo|GE Global...

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

    who want to learn more about GE and its global Research Centers. For this purpose, the Aero & Thermal Systems groups of GE Global Research and representatives from several GE...

  19. Global Liquefied Natural Gas Market: Status and Outlook, The

    Reports and Publications (EIA)

    2003-01-01

    The Global Liquefied Natural Gas Market: Status & Outlook was undertaken to characterize the global liquefied natural gas (LNG) market and to examine recent trends and future prospects in the LNG market.

  20. Atmospheric carbon dioxide and the global carbon cycle

    SciTech Connect (OSTI)

    Trabalka, J R

    1985-12-01

    This state-of-the-art volume presents discussions on the global cycle of carbon, the dynamic balance among global atmospheric CO2 sources and sinks. Separate abstracts have been prepared for the individual papers. (ACR)

  1. Departments of State and Energy Establish Global Partnership...

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

    State and Energy Establish Global Partnership to Green U.S. Embassies and Consulates Departments of State and Energy Establish Global Partnership to Green U.S. Embassies and ...

  2. Global Green Energy ApS | Open Energy Information

    Open Energy Info (EERE)

    ApS Jump to: navigation, search Name: Global Green Energy ApS Place: Aarhus C, Denmark Zip: DK- 8000 Sector: Wind energy Product: Wind farm project developer. References: Global...

  3. Rapid global structure determination of large RNA and RNA complexes...

    Office of Scientific and Technical Information (OSTI)

    Rapid global structure determination of large RNA and RNA complexes using NMR and small-angle X-ray scattering Citation Details In-Document Search Title: Rapid global structure...

  4. Autonomous global sky monitoring with real-time robotic follow...

    Office of Scientific and Technical Information (OSTI)

    Conference: Autonomous global sky monitoring with real-time robotic follow-up Citation Details In-Document Search Title: Autonomous global sky monitoring with real-time robotic...

  5. Interim Update: Global Automotive Power Electronics R&D Relevant...

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

    Interim Update: Global Automotive Power Electronics R&D Relevant To DOE 2015 and 2020 Cost Targets Interim Update: Global Automotive Power Electronics R&D Relevant To DOE 2015 and ...

  6. Live from the Clinton Global Initiative | Department of Energy

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

    from the Clinton Global Initiative Live from the Clinton Global Initiative September 21, 2010 - 1:00pm Addthis John Schueler John Schueler Former New Media Specialist, Office of Public Affairs What does this project do? We're partnering with the Clinton Global Initiative and other NGOs to bring clean-burning cookstoves to the developing world. Today Secretary of State Hillary Rodham Clinton formally announced the Global Alliance for Clean Cookstoves, a new public-private initiative to create a

  7. Technology Transfer: Triggering New Global Markets and Job Growth |

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

    Department of Energy Transfer: Triggering New Global Markets and Job Growth Technology Transfer: Triggering New Global Markets and Job Growth September 20, 2011 - 11:33am Addthis The Global Positioning System (GPS) was initially a government technology developed to guide nuclear missiles, and is one of the many examples of the economic potential of successful technology transfer -- the now worldwide location technologies market is projected to grow to $75 billion by 2013. The Global

  8. C++ LIBRARY OF ALOGRITHMS FOR STOCHASTIC GLOBAL OPTIMIZATION

    Energy Science and Technology Software Center (OSTI)

    2001-10-25

    SGOPT is a C++ library that includes implementations of several algorithms for stochastic global optimization and derivative free optimization.

  9. Greg Rutherford Executive Director Global Power & Utilities Investment...

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

    Rutherford Executive Director Global Power & Utilities Investment Banking Morgan Stanley Bankability of Electricity Transmission, Storage and Distribution Infrastructure Investment...

  10. 2015 Market Research Report on Global Medical Grade Dioctyl Industry...

    Open Energy Info (EERE)

    2015 Market Research Report on Global Medical Grade Dioctyl Industry Home There are currently no posts in this category. Syndicate...

  11. ORAU Science Education Program (SEP) Global Change Education Program (GCEP)

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

    PIA, Office of Information Resources | Department of Energy ORAU Science Education Program (SEP) Global Change Education Program (GCEP) PIA, Office of Information Resources ORAU Science Education Program (SEP) Global Change Education Program (GCEP) PIA, Office of Information Resources ORAU Science Education Program (SEP) Global Change Education Program (GCEP) PIA, Office of Information Resources PDF icon ORAU Science Education Program (SEP) Global Change Education Program (GCEP) PIA, Office

  12. Sustainability for the Global Biofuels Industry: Minimizing Risks...

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

    Sustainability for the Global Biofuels Industry: Minimizing Risks and Maximizing Opportunities Webinar Transcript Webinar transcript. Microsoft Office document icon sustainability...

  13. Global Research Alliance on Agricultural Greenhouse Gases | Open...

    Open Energy Info (EERE)

    Topics GHG inventory, Policiesdeployment programs Resource Type Guidemanual, Lessons learnedbest practices Website http:globalresearchalliance. References Global...

  14. Thermodynamic Evaluation of Low-Global Warming Potential Refrigerants...

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

    More Documents & Publications Credit: National Institute of Standards Thermodynamic Evaluation of Low-Global Warming Potential Refrigerants Research & Development Roadmap: ...

  15. From global change science to action with social sciences

    SciTech Connect (OSTI)

    Weaver, C. P.; Mooney, Sian; Allen, D.; Beller-Simms, Nancy; Fish, T.; Grambsch, A.; Hohenstein, W.; Jacobs, Kathy; Kenney, Melissa A.; Lane, Meredith A.; Langner, L.; Larson, E.; McGinnis, D. L.; Moss, Richard H.; Nichols, L. G.; Nierenberg, Claudia; Seyller, E. A.; Stern, Paul; Winthrop, R.

    2014-08-01

    US efforts to integrate social and biophysical sciences to address the issue of global change exist within a wider movement to understand global change as a societal challenge and to inform policy. Insights from the social sciences can help transform global change research into action.

  16. President Obama Hosts Global Nuclear Security Summit | National Nuclear

    National Nuclear Security Administration (NNSA)

    Security Administration Hosts Global Nuclear Security Summit President Obama Hosts Global Nuclear Security Summit Washington, DC President Obama hosts a Global Nuclear Security Summit to facilitate discussion on the nature of the nuclear threat and develop steps that can be taken together to secure vulnerable materials, combat nuclear smuggling and deter, detect, and disrupt attempts at nuclear terrorism

  17. Sustainability for the Global Biofuels Industry: Minimizing Risks and

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

    Maximizing Opportunities Webinar Transcript | Department of Energy Opportunities Webinar Transcript Sustainability for the Global Biofuels Industry: Minimizing Risks and Maximizing Opportunities Webinar Transcript Webinar transcript. Microsoft Office document icon sustainability_global_biofuels_webinar.doc More Documents & Publications Sustainability for the Global Biofuels Industry Minimizing Risks and Maximizing Opportunities 2009 National Electric Transmission Congestion Study -

  18. Thermal Imaging Technologies | GE Global Research

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

    Advanced Thermal Imaging 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) Butterfly-Inspired Design Enables Advanced Thermal Imaging Bryan Whalen in the Electronics Cooling Lab at GE Global Research recorded this thermo graphic video of a Morpho butterfly structure in response to heat pulses produced by breathing onto

  19. Global positioning system recorder and method

    DOE Patents [OSTI]

    Hayes, D.W.; Hofstetter, K.J.; Eakle, R.F. Jr.; Reeves, G.E.

    1998-12-22

    A global positioning system recorder (GPSR) is disclosed in which operational parameters and recorded positional data are stored on a transferable memory element. Through this transferrable memory element, the user of the GPSR need have no knowledge of GPSR devices other than that the memory element needs to be inserted into the memory element slot and the GPSR must be activated. The use of the data element also allows for minimal downtime of the GPSR and the ability to reprogram the GPSR and download data therefrom, without having to physically attach it to another computer. 4 figs.

  20. Tech Digest July 2013 | GE Global Research

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

    Tech Digest-July 2013 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) Tech Digest-July 2013 Catch up on some of the latest technological developments at GE Global Research. You Might Also Like GE's Brilliant Factory Lab advances digital manufacturing Bringing a Digital Mindset to Manufacturing » ge store2 What is the

  1. Pi in Applied Optics | GE Global Research

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

    Inside the Applied Optics Lab II 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) The sPI CAM: Inside the Applied Optics Lab II The sPI Cam visits the Applied Optics Lab to see how Mark Meyers, a physicist and optical engineer at GE Global Research, uses Pi. You Might Also Like lightning bolt We One-Upped Ben Franklin,

  2. Dhahran, Saudi Arabia | GE Global Research

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

    Dhahran, Saudi Arabia Dhahran, Saudi Arabia 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) Visit the Careers page to search and apply for Global Research jobs in Saudi Arabia. We also welcome robust participation in our work from a range of science and technology students. Find out more about Edison Internships and the

  3. Durathon Battery Technology | GE Global Research

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

    Durathon(tm) Battery Helps Power Electric Bus 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) GE's Durathon(tm) Battery Helps Power Electric Bus GE engineer Tim Richter explains how the company's Durathon(tm) batteries fit into the on-board energy management system on a bus at GE's Global Research Center. This

  4. Elizabeth Dees | Inventors | GE Global Research

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

    Elizabeth Dees Elizabeth Dees Chemical Engineer Engineered Materials, Chemistry & Physics 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) "I've been continually learning at Global Research, from when I joined 3 years ago to now, so I'm excited to see how I continue to grow in the coming years." -Elizabeth

  5. Integrated Global Nuclear Materials Management Preliminary Concepts

    SciTech Connect (OSTI)

    Jones, E; Dreicer, M

    2006-06-19

    The world is at a turning point, moving away from the Cold War nuclear legacy towards a future global nuclear enterprise; and this presents a transformational challenge for nuclear materials management. Achieving safety and security during this transition is complicated by the diversified spectrum of threat 'players' that has greatly impacted nonproliferation, counterterrorism, and homeland security requirements. Rogue states and non-state actors no longer need self-contained national nuclear expertise, materials, and equipment due to availability from various sources in the nuclear market, thereby reducing the time, effort and cost for acquiring a nuclear weapon (i.e., manifestations of latency). The terrorist threat has changed the nature of military and national security requirements to protect these materials. An Integrated Global Nuclear Materials Management (IGNMM) approach would address the existing legacy nuclear materials and the evolution towards a nuclear energy future, while strengthening a regime to prevent nuclear weapon proliferation. In this paper, some preliminary concepts and studies of IGNMM will be presented. A systematic analysis of nuclear materials, activities, and controls can lead to a tractable, integrated global nuclear materials management architecture that can help remediate the past and manage the future. A systems approach is best suited to achieve multi-dimensional and interdependent solutions, including comprehensive, end-to-end capabilities; coordinated diverse elements for enhanced functionality with economy; and translation of goals/objectives or standards into locally optimized solutions. A risk-informed basis is excellent for evaluating system alternatives and performances, and it is especially appropriate for the security arena. Risk management strategies--such as defense-in-depth, diversity, and control quality--help to weave together various technologies and practices into a strong and robust security fabric. Effective policy, science/technology, and intelligence elements are all crucial and must be harmonized. It is envisioned that integrated solutions will include reducing and securing nuclear/radiological materials at their source; improved monitoring and tracking; and enhancing detection, interdiction, and response. An active architecture, artfully combined of many synergistic elements, would support national actions and international collaboration in nuclear materials management, and it would help navigate a transition toward global nuclear sustainability.

  6. Making Silicon Carbide Devices | GE Global Research

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

    Making Silicon Carbide Devices in the Cleanroom 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) Making Silicon Carbide Devices in the Cleanroom Ron Olson 2012.08.23 As the Wide Bandgap Process and Fab manager for the GE Global Research cleanroom, I wanted to take some time to give you the dirt on our clean room over the

  7. Criteria for Global Nuclear Energy Development

    SciTech Connect (OSTI)

    Lawrence, Michael J.

    2002-07-01

    Global energy consumption will at least double over the next fifty years due to population growth, increased consumption, and an urgent need to improve the standard of living in under-developed countries. Thirty percent of this growth will be for electricity. At the same time, carbon emissions must be significantly reduced to respond to concerns regarding global warming. The use of nuclear energy to meet this growing electricity demand without carbon emissions is an obvious solution to many observers, however real concerns over economics, safety, waste and proliferation must be adequately addressed. The issue is further complicated by the fact that developing countries, which have the most pressing need for additional electricity generation, have the least capability and infrastructure to deploy nuclear energy. Nevertheless, if the specific needs of developing countries are appropriately considered now as new generation reactors are being developed, and institutional arrangements based upon the fundamental principles of President Eisenhower's 1953 Atoms For Peace speech are followed, nuclear energy could be deployed in any country. From a technical perspective, reactor safety and accessibility of special nuclear material are primary concerns. Institutionally, plant and fuel ownership and waste management issues must be addressed. International safety and safeguards authority are prerequisites. While the IAEA's IMPRO program and the United States' Generation IV programs are focusing on technical solutions, institutional issues, particularly with regard to deployment in developing countries, are not receiving corresponding attention. Full-service, cradle-to-grave, nuclear electricity companies that retain custody and responsibility for the plant and materials, including waste, are one possible solution. Small modular reactors such as the Pebble Bed Modular Reactor could be ideal for such an arrangement. While waste disposal remains a major obstacle, this is already true for numerous nuclear programs even in developed countries with limited geologically suitable formations. Fortunately, several organizations are currently pursuing international solutions to the nuclear waste disposal problem. While the capability to deploy nuclear energy in a specific country may not be desirable for a number of reasons, we should not develop nuclear hardware that can only benefit and serve technically and economically advanced countries. The potential benefits of nuclear energy are global, and we should not unduly limit that potential by inattention today to the requirements necessary for global deployment. (authors)

  8. Underground CO2 Storage | GE Global Research

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

    Enhanced Sensing Capabilities for CO2 Storage Wells 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) Enhanced Sensing Capabilities for CO2 Storage Wells GE (NYSE: GE) Global Research today announced it has signed a contract with the National Energy Technology Laboratory (NETL), part of the U.S. Department of Energy (DOE)

  9. Smart Street Lights | GE Global Research

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

    LightGrid Provides Real-Time Feedback From Street Lights 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) LightGrid Provides Real-Time Feedback From Street Lights You use a GPS to provide real-time data from your car. Now, technologists from the Controls, Electronics and Signal Processing Lab at GE Global Research will

  10. Connecting to the Grid | GE Global Research

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

    Connecting to the Grid 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) Connecting to the Grid Ranjan Gupta 2014.02.24 I'm blogging this week from an event I'm always thrilled to attend - the annual ARPA-e Energy Innovation Summit in Washington. I'm joined here by a few of my colleagues from GE Global Research to

  11. Artificial Lift Technology | GE Global Research

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

    Technology: Driving the Artificial Lift Market 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) Technology: Driving the Artificial Lift Market Gary Ford, president and CEO of GE Artificial Lift, discusses what the equipment does, the current state of the market and the importance of working with GE's Global Research

  12. Parasail: SIMD C library for global, semi-global, and local pairwise sequence alignments

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

    Daily, Jeffrey A.

    2016-02-10

    Sequence alignment algorithms are a key component of many bioinformatics applications. Though various fast Smith-Waterman local sequence alignment implementations have been developed for x86 CPUs, most are embedded into larger database search tools. In addition, fast implementations of Needleman-Wunsch global sequence alignment and its semi-global variants are not as widespread. This article presents the first software library for local, global, and semi-global pairwise intra-sequence alignments and improves the performance of previous intra-sequence implementations. As a result, a faster intra-sequence pairwise alignment implementation is described and benchmarked. Using a 375 residue query sequence a speed of 136 billion cell updates permore » second (GCUPS) was achieved on a dual Intel Xeon E5-2670 12-core processor system, the highest reported for an implementation based on Farrar’s ’striped’ approach. When using only a single thread, parasail was 1.7 times faster than Rognes’s SWIPE. For many score matrices, parasail is faster than BLAST. The software library is designed for 64 bit Linux, OS X, or Windows on processors with SSE2, SSE41, or AVX2. Source code is available from https://github.com/jeffdaily/parasail under the Battelle BSD-style license. In conclusion, applications that require optimal alignment scores could benefit from the improved performance. For the first time, SIMD global, semi-global, and local alignments are available in a stand-alone C library.« less

  13. Improved Miscible Nitrogen Flood Performance Utilizing Advanced Reservoir Characterization and Horizontal Laterals in a Class I Reservoir--East Binger (Marchand) Unit

    SciTech Connect (OSTI)

    Joe Sinner

    2005-09-15

    A significant work program was implemented from 2002 to 2004 in the East Binger Unit (''EBU'') miscible nitrogen injection project in an effort to reduce gas cycling and economically increase ultimate oil recovery. This work included the drilling of new wells, both horizontal and vertical, as well as pattern realignment through producer-to-injector conversions. Monitoring of overall performance of the pilot area continues. Response to the various projects continues to be very favorable. Injection into the pilot area, though limited at times by problems in the Air Separation Unit of the Nitrogen Management Facility, and has increased 70% over levels prior to the project. Meanwhile, gas production and nitrogen content of produced gas have both decreased. Nitrogen recycle within the pilot area is now only about 32%, far below the 72% recycle prior to initiation of the project. Poor areal sweep efficiency appears to be the primary cause of nitrogen cycling. Four vertical and three horizontal wells have been drilled in the pilot area throughout the project, and most have had initial produced gas oil ratios and gas nitrogen contents significantly below the field averages. Additional vertical well drilling is planned due to the success of wells drilled to date.

  14. IMPROVED MISCIBLE NITROGEN FLOOD PERFORMANCE UTILIZING ADVANCED RESERVOIR CHARACTERIZATION AND HORIZONTAL LATERALS IN A CLASS I RESERVOIR - EAST BINGER (MARCHAND) UNIT

    SciTech Connect (OSTI)

    Joe Sinner

    2003-05-30

    Implementation of the work program of Budget Period 2 of the East Binger Unit (''EBU'') DOE Project continues. Significant advances with the reservoir simulation model have led to changes in the program. One planned horizontal well location, EBU 44-3H, has been eliminated from the program, and another, EBU 45-3H, has been deferred, and may be replaced by a vertical well or completely eliminated at a future date. A new horizontal well location, EBU 63-2H, has been added. EBU 74G-2, the one new injection well planned for the project, was completed and brought on production. It will be produced for a period of time before converting it to injection. Performance is exceeding expectations. Work also continued on projects aimed at increasing injection in the pilot area. EBU 65-1 was converted to injection service. The project to add compression and increase injection capacity at the nitrogen management facility is nearing completion. Additional producer-to-injector conversions will follow.

  15. Field evaluation of a horizontal well recirculation system for groundwater treatment: Field demonstration at X-701B Portsmouth Gaseous Diffusion Plant, Piketon, Ohio

    SciTech Connect (OSTI)

    Korte, N.; Muck, M.; Kearl, P.; Siegrist, R.; Schlosser, R.; Zutman, J.; Houk, T.

    1998-08-01

    This report describes the field-scale demonstration performed as part of the project, In Situ Treatment of Mixed Contaminants in Groundwater. This project was a 3{1/2} year effort comprised of laboratory work performed at Oak Ridge National Laboratory and fieldwork performed at the US Department of Energy (DOE) Portsmouth Gaseous Diffusion Plant (PORTS). The overall goal of the project was to evaluate in situ treatment of groundwater using horizontal recirculation coupled with treatment modules. Specifically, horizontal recirculation was tested because of its application to thin, interbedded aquifer zones. Mixed contaminants were targeted because of their prominence at DOE sites and because they cannot be treated with conventional methods. The project involved several research elements, including treatment process evaluation, hydrodynamic flow and transport modeling, pilot testing at an uncontaminated site, and full-scale testing at a contaminated site. This report presents the results of the work at the contaminated site, X-701B at PORTS. Groundwater contamination at X-701B consists of trichloroethene (TCE) (concentrations up to 1800 mg/L) and technetium-998 (Tc{sup 99}) (activities up to 926 pCi/L).

  16. GE Opens New Global R&D Center in Brazil - GE Global Research

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

    Opens New Global R&D Center in Brazil; Working with Petrobras and BG Group to develop advanced technologies for oil and gas processing on the seabed 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) GE Opens New Global R&D Center in Brazil; Working with Petrobras and BG Group to develop advanced technologies for

  17. GLOBAL H I KINEMATICS IN DWARF GALAXIES

    SciTech Connect (OSTI)

    Stilp, Adrienne M.; Dalcanton, Julianne J.; Warren, Steven R.; Skillman, Evan; Ott, Juergen; Koribalski, Baerbel

    2013-03-10

    H I line widths are typically interpreted as a measure of interstellar medium turbulence, which is potentially driven by star formation (SF). In an effort to better understand the possible connections between line widths and SF, we have characterized H I kinematics in a sample of nearby dwarf galaxies by co-adding line-of-sight spectra after removing the rotational velocity to produce average global H I line profiles. These ''superprofiles'' are composed of a central narrow peak ({approx}6-10 km s{sup -1}) with higher-velocity wings to either side that contain {approx}10%-15% of the total flux. The superprofiles are all very similar, indicating a universal global H I profile for dwarf galaxies. We compare characteristics of the superprofiles to various galaxy properties, such as mass and measures of SF, with the assumption that the superprofile represents a turbulent peak with energetic wings to either side. We use these quantities to derive average scale heights for the sample galaxies. When comparing to physical properties, we find that the velocity dispersion of the central peak is correlated with ({Sigma}{sub HI}). The fraction of mass and characteristic velocity of the high-velocity wings are correlated with measures of SF, consistent with the picture that SF drives surrounding H I to higher velocities. While gravitational instabilities provide too little energy, the SF in the sample galaxies does provide enough energy through supernovae, with realistic estimates of the coupling efficiency, to produce the observed superprofiles.

  18. Development of an Integrated Global Energy Model

    SciTech Connect (OSTI)

    Krakowski, R.A.

    1999-07-08

    The primary objective of this research was to develop a forefront analysis tool for application to enhance understanding of long-term, global, nuclear-energy and nuclear-material futures. To this end, an existing economics-energy-environmental (E{sup 3}) model was adopted, modified, and elaborated to examine this problem in a multi-regional (13), long-term ({approximately}2,100) context. The E{sup 3} model so developed was applied to create a Los Alamos presence in this E{sup 3} area through ''niche analyses'' that provide input to the formulation of policies dealing with and shaping of nuclear-energy and nuclear-materials futures. Results from analyses using the E{sup 3} model have been presented at a variety of national and international conferences and workshops. Through use of the E{sup 3} model Los Alamos was afforded the opportunity to participate in a multi-national E{sup 3} study team that is examining a range of global, long-term nuclear issues under the auspices of the IAEA during the 1998-99 period . Finally, the E{sup 3} model developed under this LDRD project is being used as an important component in more recent Nuclear Material Management Systems (NMMS) project.

  19. Global Security, Medical Isotopes, and Nuclear Science

    SciTech Connect (OSTI)

    Ahle, L E

    2007-09-17

    Over the past century basic nuclear science research has led to the use of radioactive isotopes into a wide variety of applications that touch our lives everyday. Some are obvious, such as isotopes for medical diagnostics and treatment. Others are less so, such as National/Global security issues. And some we take for granted, like the small amount of 241Am that is in every smoke detector. At the beginning of this century, we are in a position where the prevalence and importance of some applications of nuclear science are pushing the basic nuclear science community for improved models and nuclear data. Yet, at the same time, the push by the basic nuclear science community to study nuclei that are farther and farther away from stability also offer new opportunities for many applications. This talk will look at several global security applications of nuclear science, summarizing current R&D and need for improved nuclear data It will also look at how applications of nuclear science, such as to medicine, will benefit from the push for more and more powerful radioactive ion beam facilities.

  20. Global Security, Medical Isotopes, and Nuclear Science

    SciTech Connect (OSTI)

    Ahle, Larry

    2007-10-26

    Over the past century basic nuclear science research has led to the use of radioactive isotopes into a wide variety of applications that touch our lives everyday. Some are obvious, such as isotopes for medical diagnostics and treatment. Others are less so, such as National/Global security issues. And some we take for granted, like the small amount of 241 Am that is in every smoke detector. At the beginning of this century, we are in a position where the prevalence and importance of some applications of nuclear science are pushing the basic nuclear science community for improved models and nuclear data. Yet, at the same time, the push by the basic nuclear science community to study nuclei that are farther and farther away from stability also offer new opportunities for many applications. This talk will look at several global security applications of nuclear science, summarizing current R and D and need for improved nuclear data It will also look at how applications of nuclear science, such as to medicine, will benefit from the push for more and more powerful radioactive ion beam facilities.