National Library of Energy BETA

Sample records for lightweight direct drive

  1. DRIVING DIRECTIONS

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit theCovalent Bonding Low-Cost2 DOE HQSiteo n n eDPFJ.D.DRIVING DIRECTIONS

  2. Direct drive wind turbine

    DOE Patents [OSTI]

    Bywaters, Garrett Lee; Danforth, William; Bevington, Christopher; Stowell, Jesse; Costin, Daniel

    2006-09-19

    A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

  3. Direct drive wind turbine

    DOE Patents [OSTI]

    Bywaters, Garrett; Danforth, William; Bevington, Christopher; Jesse, Stowell; Costin, Daniel

    2007-02-27

    A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

  4. Direct drive wind turbine

    DOE Patents [OSTI]

    Bywaters, Garrett; Danforth, William; Bevington, Christopher; Stowell, Jesse; Costin, Daniel

    2006-07-11

    A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

  5. Direct drive wind turbine

    DOE Patents [OSTI]

    Bywaters, Garrett; Danforth, William; Bevington, Christopher; Jesse, Stowell; Costin, Daniel

    2006-10-10

    A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

  6. Low backlash direct drive actuator

    DOE Patents [OSTI]

    Kuklo, T.C.

    1994-10-25

    A low backlash direct drive actuator is described which comprises a motor such as a stepper motor having at least 200 steps per revolution; a two part hub assembly comprising a drive hub coaxially attached to the shaft of the motor and having a plurality of drive pins; a driven hub having a plurality of bores in one end thereof in alignment with the drive pins in the drive hub and a threaded shaft coaxially mounted in an opposite end of the driven hub; and a housing having a central bore therein into which are fitted the drive hub and driven hub, the housing having a motor mount on one end thereof to which is mounted the stepper motor, and a closed end portion with a threaded opening therein coaxial with the central bore in the housing and receiving therein the threaded shaft attached to the driven hub. Limit switches mounted to the housing cooperate with an enlarged lip on the driven hub to limit the lateral travel of the driven hub in the housing, which also acts to limit the lateral travel of the threaded shaft which functions as a lead screw. 10 figs.

  7. Direct drive field actuator motors

    DOE Patents [OSTI]

    Grahn, Allen R. (Salt Lake City, UT)

    1998-01-01

    A positive-drive field actuator motor including a stator carrying at least one field actuator which changes in dimension responsive to application of an energy field, and at least one drive shoe movable by the dimensional changes of the field actuator to contact and move a rotor element with respect to the stator. Various embodiments of the motor are disclosed, and the rotor element may be moved linearly or arcuately.

  8. Direct drive field actuator motors

    DOE Patents [OSTI]

    Grahn, A.R.

    1998-03-10

    A positive-drive field actuator motor is described which includes a stator carrying at least one field actuator which changes in dimension responsive to application of an energy field, and at least one drive shoe movable by the dimensional changes of the field actuator to contact and move a rotor element with respect to the stator. Various embodiments of the motor are disclosed, and the rotor element may be moved linearly or arcuately. 62 figs.

  9. Columbia Power Technologies, Inc. Deploys its Direct Drive Wave...

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

    Columbia Power Technologies, Inc. Deploys its Direct Drive Wave Energy Buoy Columbia Power Technologies, Inc. Deploys its Direct Drive Wave Energy Buoy April 9, 2013 - 12:00am...

  10. Direct Drive Systems DDS | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (UtilityInstrumentsArea (DOE GTP) JumpDillard Road SolarEngineeringDirect Drive

  11. Quasi-spherical direct drive fusion.

    SciTech Connect (OSTI)

    VanDevender, J. Pace; Abbott, Lucas M.; Langston, William L.; McDaniel, Dillon Heirman; Nash, Thomas J.; Roderick, Norman Frederick; Silva, M.

    2007-01-01

    The authors present designs of quasi-spherical direction drive z-pinch loads for machines such as ZR at 28 MA load current with a 150 ns implosion time (QSDDI). A double shell system for ZR has produced a 2D simulated yield of 12 MJ, but the drive for this system on ZR has essentially no margin. A double shell system for a 56 MA driver at 150 ns implosion has produced a simulated yield of 130 MJ with considerable margin in attaining the necessary temperature and density-radius product for ignition. They also represent designs for a magnetically insulated current amplifier, (MICA), that modify the attainable ZR load current to 36 MA with a 28 ns rise time. The faster pulse provided by a MICA makes it possible to drive quasi-spherical single shell implosions (QSDD2). They present results from 1D LASNEX and 2D MACH2 simulations of promising low-adiabat cryogenic QSDD2 capsules and 1D LASNEX results of high-adiabat cryogenic QSDD2 capsules.

  12. Homodyne target tracking for direct drive laser inertial fusion

    E-Print Network [OSTI]

    Spalding, Jon David

    2009-01-01

    direct drive inertial confinement fusion experiments, asto be used in >>>Inertial Confinement Fusion, as a means of

  13. Direct-drive field actuator motors

    DOE Patents [OSTI]

    Grahn, A.R.

    1995-07-11

    A high-torque, low speed, positive-drive field actuator motor is disclosed including a stator carrying at least one field actuator which changes in dimension responsive to application of an energy field, and at least one drive shoe movable by the dimensional changes of the field actuator to contact and move a rotor element with respect to the stator. Various embodiments of the motor are disclosed, and the rotor element may be moved linearly or arcuately. 37 figs.

  14. Direct-drive field actuator motors

    DOE Patents [OSTI]

    Grahn, Allen R. (Salt Lake City, UT)

    1995-01-01

    A high-torque, low speed, positive-drive field actuator motor including a stator carrying at least one field actuator which changes in dimension responsive to application of an energy field, and at least one drive shoe movable by the dimensional changes of the field actuator to contact and move a rotor element with respect to the stator. Various embodiments of the motor are disclosed, and the rotor element may be moved linearly or arcuately.

  15. DRIVING AND PARKING DIRECTIONS UCSD Computer Science and Engineering building

    E-Print Network [OSTI]

    Simunic, Tajana

    DRIVING AND PARKING DIRECTIONS UCSD Computer Science and Engineering building and CNS offices From North of La Jolla - Interstate 5 Interstate 5 South. Exit Genesee and head west (right). Go up to the right. When you reach Voigt Drive (stop sign), turn left and go down a hill. Turn left on Equality Lane

  16. Shell trajectory measurements from direct-drive implosion experiments...

    Office of Scientific and Technical Information (OSTI)

    A technique to measure the shell trajectory in direct-drive inertial confinement fusion implosions is presented. The x-ray self emission of the target is measured with an...

  17. Progress in direct-drive inertial confinement fusion

    SciTech Connect (OSTI)

    McCrory, R. L.; Meyerhofer, D. D.; Betti, R.; Craxton, R. S.; Delettrez, J. A.; Edgell, D. H.; Glebov, V. Yu.; Goncharov, V. N.; Harding, D. R.; Jacobs-Perkins, D. W.; Knauer, J. P.; Marshall, F. J.; McKenty, P. W.; Radha, P. B.; Regan, S. P.; Sangster, T. C.; Seka, W.; Short, R. W.; Skupsky, S.; Smalyuk, V. A. [Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (United States)] (and others)

    2008-05-15

    Significant progress in direct-drive inertial confinement fusion (ICF) research has been made since the completion of the 60-beam, 30-kJ{sub UV} OMEGA Laser System [Boehly, Opt. Commun. 133, 495 (1997)] in 1995. A theory of ignition requirements, applicable to any ICF concept, has been developed. Detailed understanding of laser-plasma coupling, electron thermal transport, and hot-electron preheating has lead to the measurement of neutron-averaged areal densities of {approx}200 mg/cm{sup 2} in cryogenic target implosions. These correspond to an estimated peak fuel density in excess of 100 g/cm{sup 3} and are in good agreement with hydrodynamic simulations. The implosions were performed using an 18-kJ drive pulse designed to put the converging fuel on an adiabat of two. The polar-drive concept will allow direct-drive-ignition research on the National Ignition Facility while it is configured for indirect drive. Advanced ICF ignition concepts - fast ignition [Tabak et al., Phys. Plasmas 1, 1626 (1994)] and shock ignition [Betti et al., Phys. Rev. Lett. 98, 155001 (2007)] - have the potential to significantly reduce ignition driver energies and/or provide higher target gain.

  18. Polar-direct-drive experiments on the National Ignition Facility

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

    Hohenberger, M.; Radha, P. B.; Myatt, J. F.; LePape, S.; Marozas, J. A.; Marshall, F. J.; Michel, D. T.; Regan, S. P.; Seka, W.; Shvydky, A.; et al

    2015-05-11

    To support direct-drive inertial confinement fusion experiments at the National Ignition Facility (NIF) [G. H. Miller, E. I. Moses, and C. R. Wuest, Opt. Eng. 43, 2841 (2004)] in its indirect-drive beam configuration, the polar-direct-drive (PDD) concept [S. Skupsky et al., Phys. Plasmas 11, 2763 (2004)] has been proposed. Ignition in PDD geometry requires direct-drive–specific beam smoothing, phase plates, and repointing the NIF beams toward the equator to ensure symmetric target irradiation. First experiments to study the energetics and preheat in PDD implosions at the NIF have been performed. These experiments utilize the NIF in its current configuration, including beammore »geometry, phase plates, and beam smoothing. Room-temperature, 2.2-mm-diam plastic shells filled with D? gas were imploded with total drive energies ranging from ~500 to 750 kJ with peak powers of 120 to 180 TW and peak on-target irradiances at the initial target radius from 8 10¹? to 1.2 10¹?W/cm². Results from these initial experiments are presented, including measurements of shell trajectory, implosion symmetry, and the level of hot-electron preheat in plastic and Si ablators. Experiments are simulated with the 2-D hydrodynamics code DRACO including a full 3-D ray-trace to model oblique beams, and models for nonlocal electron transport and cross-beam energy transport (CBET). These simulations indicate that CBET affects the shell symmetry and leads to a loss of energy imparted onto the shell, consistent with the experimental data.« less

  19. Polar-direct-drive experiments on the National Ignition Facility

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

    Hohenberger, M. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States)] (ORCID:0000000258879711); Radha, P. B. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Myatt, J. F. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); LePape, S. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Marozas, J. A. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Marshall, F. J. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Michel, D. T. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States)] (ORCID:0000000166894359); Regan, S. P. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Seka, W. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Shvydky, A. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Sangster, T. C. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States)] (ORCID:0000000340402672); Bates, J. W. [U. S. Naval Research Lab., Washington, DC (United States)] (ORCID:0000000188087240); Betti, R. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Boehly, T. R. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Bonino, M. J. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Casey, D. T. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Collins, T. J. B. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Craxton, R. S. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States)] (ORCID:0000000158858227); Delettrez, J. A. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Edgell, D. H. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Epstein, R. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States)] (ORCID:0000000340628444); Fiksel, G. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Fitzsimmons, P. [General Atomics, San Diego, CA (United States); Frenje, J. A. [MIT (Massachusetts Inst. of Technology), Cambridge, MA (United States)] (ORCID:0000000168460378); Froula, D. H. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Goncharov, V. N. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Harding, D. R. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Kalantar, D. H. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Karasik, M. [U. S. Naval Research Lab., Washington, DC (United States); Kessler, T. J. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Kilkenny, J. D. [General Atomics, San Diego, CA (United States); Knauer, J. P. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Kurz, C. [General Atomics, San Diego, CA (United States); Lafon, M. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); LaFortune, K. N. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); MacGowan, B. J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Mackinnon, A. J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); MacPhee, A. G. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)] (ORCID:0000000341604479); McCrory, R. L. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); McKenty, P. W. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States); Meeker, J. F. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Meyerhofer, D. D. [Lab. for Laser Energetics, University of Rochester, Rochester, NY (United States)

    2015-05-01

    To support direct-drive inertial confinement fusion experiments at the National Ignition Facility (NIF) [G. H. Miller, E. I. Moses, and C. R. Wuest, Opt. Eng. 43, 2841 (2004)] in its indirect-drive beam configuration, the polar-direct-drive (PDD) concept [S. Skupsky et al., Phys. Plasmas 11, 2763 (2004)] has been proposed. Ignition in PDD geometry requires direct-drive–specific beam smoothing, phase plates, and repointing the NIF beams toward the equator to ensure symmetric target irradiation. First experiments to study the energetics and preheat in PDD implosions at the NIF have been performed. These experiments utilize the NIF in its current configuration, including beam geometry, phase plates, and beam smoothing. Room-temperature, 2.2-mm-diam plastic shells filled with D? gas were imploded with total drive energies ranging from ~500 to 750 kJ with peak powers of 120 to 180 TW and peak on-target irradiances at the initial target radius from 8 10¹? to 1.2 10¹?W/cm². Results from these initial experiments are presented, including measurements of shell trajectory, implosion symmetry, and the level of hot-electron preheat in plastic and Si ablators. Experiments are simulated with the 2-D hydrodynamics code DRACO including a full 3-D ray-trace to model oblique beams, and models for nonlocal electron transport and cross-beam energy transport (CBET). These simulations indicate that CBET affects the shell symmetry and leads to a loss of energy imparted onto the shell, consistent with the experimental data.

  20. Polar-direct-drive experiments on the national ignition facilitya)

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

    Hohenberger, M.; Radha,, P. B.; Myatt, J. F.; LePape, S.; Marozas,, J. A.; Marshall, F. J.; Michel, D. T.; Regan, S. P.; Seka, W.; Shvydky, A.; et al

    2015-05-01

    To support direct-drive inertial confinement fusion experiments at the National Ignition Facility (NIF) [G. H. Miller, E. I. Moses, and C. R. Wuest, Opt. Eng. 43, 2841 (2004)] in its indirect-drive beam configuration, the polar-direct-drive (PDD) concept [S. Skupsky et al., Phys. Plasmas 11, 2763 (2004)] has been proposed. Ignition in PDD geometry requires direct-drive–specific beam smoothing, phase plates, and repointing the NIF beams toward the equator to ensure symmetric target irradiation. First experiments to study the energetics and preheat in PDD implosions at the NIF have been performed. These experiments utilize the NIF in its current configuration, including beammore »geometry, phase plates, and beam smoothing. Room-temperature, 2.2-mm-diam plastic shells filled with D? gas were imploded with total drive energies ranging from ~500 to 750 kJ with peak powers of 120 to 180 TW and peak on-target irradiances at the initial target radius from 8 x 10¹? to 1.2 x 10¹?W/cm². Results from these initial experiments are presented, including measurements of shell trajectory, implosion symmetry, and the level of hot-electron preheat in plastic and Si ablators. Experiments are simulated with the 2-D hydrodynamics code DRACO including a full 3-D ray-trace to model oblique beams, and models for nonlocal electron transport and cross-beam energy transport (CBET). These simulations indicate that CBET affects the shell symmetry and leads to a loss of energy imparted onto the shell, consistent with the experimental data.« less

  1. Direct Fusion Drive for a Human Mars Orbital Mission

    SciTech Connect (OSTI)

    Paluszek, Michael; Pajer, Gary; Razin, Yosef; Slonaker, James; Cohen, Samuel; Feder, Russ; Griffin, Kevin; Walsh, Matthew

    2014-08-01

    The Direct Fusion Drive (DFD) is a nuclear fusion engine that produces both thrust and electric power. It employs a field reversed configuration with an odd-parity rotating magnetic field heating system to heat the plasma to fusion temperatures. The engine uses deuterium and helium-3 as fuel and additional deuterium that is heated in the scrape-off layer for thrust augmentation. In this way variable exhaust velocity and thrust is obtained.

  2. Direct-drive inertial confinement fusion: A review

    SciTech Connect (OSTI)

    Craxton, R. S.; Anderson, K. S.; Boehly, T. R.; Goncharov, V. N.; Harding, D. R.; Knauer, J. P.; McCrory, R. L.; McKenty, P. W.; Meyerhofer, D. D.; Myatt, J. F.; Schmitt, A. J.; Sethian, J. D.; Short, R. W.; Skupsky, S.; Theobald, W.; Kruer, W. L.; Tanaka, K.; Betti, R.; Collins, T. J. B.; Delettrez, J. A.; Hu, S. X.; Marozas, J. A.; Maximov, A. V.; Michel, D. T.; Radha, P. B.; Regan, S. P.; Sangster, T. C.; Seka, W.; Solodov, A. A.; Soures, J. M.; Stoeckl, C.; Zuegel, J. D.

    2015-11-25

    In this study, the direct-drive, laser-based approach to inertial confinement fusion (ICF) is reviewed from its inception following the demonstration of the first laser to its implementation on the present generation of high-power lasers. The review focuses on the evolution of scientific understanding gained from target-physics experiments in many areas, identifying problems that were demonstrated and the solutions implemented. The review starts with the basic understanding of laser–plasma interactions that was obtained before the declassification of laser-induced compression in the early 1970s and continues with the compression experiments using infrared lasers in the late 1970s that produced thermonuclear neutrons. The problem of suprathermal electrons and the target preheat that they caused, associated with the infrared laser wavelength, led to lasers being built after 1980 to operate at shorter wavelengths, especially 0.35 um—the third harmonic of the Nd:glass laser—and 0.248 um (the KrF gas laser). The main physics areas relevant to direct drive are reviewed. The primary absorption mechanism at short wavelengths is classical inverse bremsstrahlung. Nonuniformities imprinted on the target by laser irradiation have been addressed by the development of a number of beam-smoothing techniques and imprint-mitigation strategies. The effects of hydrodynamic instabilities are mitigated by a combination of imprint reduction and target designs that minimize the instability growth rates. Several coronal plasma physics processes are reviewed. The two-plasmon–decay instability, stimulated Brillouin scattering (together with cross-beam energy transfer), and (possibly) stimulated Raman scattering are identified as potential concerns, placing constraints on the laser intensities used in target designs, while other processes (self-focusing and filamentation, the parametric decay instability, and magnetic fields), once considered important, are now of lesser concern for mainline direct-drive target concepts. Filamentation is largely suppressed by beam smoothing. Thermal transport modeling, important to the interpretation of experiments and to target design, has been found to be non-local in nature. Advances in shock timing and equation-of-state measurements relevant to direct-drive ICF are reported. Room-temperature implosions have provided an increased understanding of the importance of stability and uniformity. The evolution of cryogenic implosion capabilities, leading to an extensive series carried out on the 60-beam OMEGA laser [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)], is reviewed together with major advances in cryogenic target formation. A polar-drive concept has been developed that will enable direct-drive–ignition experiments to be performed on the National Ignition Facility [C. A. Haynam et al., Appl. Opt. 46 (16), 3276 (2007)]. The advantages offered by the alternative approaches of fast ignition and shock ignition and the issues associated with these concepts are described. The lessons learned from target-physics and implosion experiments are taken into account in ignition and high-gain target designs for laser wavelengths of 1/3 um and 1/4 um. Substantial advances in direct-drive inertial fusion reactor concepts are reviewed. Overall, the progress in scientific understanding over the past five decades has been enormous, to the point that inertial fusion energy using direct drive shows significant promise as a future environmentally attractive energy source.

  3. Direct-drive inertial confinement fusion: A review

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

    Craxton, R. S.; Anderson, K. S.; Boehly, T. R.; Goncharov, V. N.; Harding, D. R.; Knauer, J. P.; McCrory, R. L.; McKenty, P. W.; Meyerhofer, D. D.; Myatt, J. F.; et al

    2015-11-25

    In this study, the direct-drive, laser-based approach to inertial confinement fusion (ICF) is reviewed from its inception following the demonstration of the first laser to its implementation on the present generation of high-power lasers. The review focuses on the evolution of scientific understanding gained from target-physics experiments in many areas, identifying problems that were demonstrated and the solutions implemented. The review starts with the basic understanding of laser–plasma interactions that was obtained before the declassification of laser-induced compression in the early 1970s and continues with the compression experiments using infrared lasers in the late 1970s that produced thermonuclear neutrons. Themore »problem of suprathermal electrons and the target preheat that they caused, associated with the infrared laser wavelength, led to lasers being built after 1980 to operate at shorter wavelengths, especially 0.35 um—the third harmonic of the Nd:glass laser—and 0.248 um (the KrF gas laser). The main physics areas relevant to direct drive are reviewed. The primary absorption mechanism at short wavelengths is classical inverse bremsstrahlung. Nonuniformities imprinted on the target by laser irradiation have been addressed by the development of a number of beam-smoothing techniques and imprint-mitigation strategies. The effects of hydrodynamic instabilities are mitigated by a combination of imprint reduction and target designs that minimize the instability growth rates. Several coronal plasma physics processes are reviewed. The two-plasmon–decay instability, stimulated Brillouin scattering (together with cross-beam energy transfer), and (possibly) stimulated Raman scattering are identified as potential concerns, placing constraints on the laser intensities used in target designs, while other processes (self-focusing and filamentation, the parametric decay instability, and magnetic fields), once considered important, are now of lesser concern for mainline direct-drive target concepts. Filamentation is largely suppressed by beam smoothing. Thermal transport modeling, important to the interpretation of experiments and to target design, has been found to be non-local in nature. Advances in shock timing and equation-of-state measurements relevant to direct-drive ICF are reported. Room-temperature implosions have provided an increased understanding of the importance of stability and uniformity. The evolution of cryogenic implosion capabilities, leading to an extensive series carried out on the 60-beam OMEGA laser [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)], is reviewed together with major advances in cryogenic target formation. A polar-drive concept has been developed that will enable direct-drive–ignition experiments to be performed on the National Ignition Facility [C. A. Haynam et al., Appl. Opt. 46 (16), 3276 (2007)]. The advantages offered by the alternative approaches of fast ignition and shock ignition and the issues associated with these concepts are described. The lessons learned from target-physics and implosion experiments are taken into account in ignition and high-gain target designs for laser wavelengths of 1/3 um and 1/4 um. Substantial advances in direct-drive inertial fusion reactor concepts are reviewed. Overall, the progress in scientific understanding over the past five decades has been enormous, to the point that inertial fusion energy using direct drive shows significant promise as a future environmentally attractive energy source.« less

  4. Electric vehicle drive train with direct coupling transmission

    DOE Patents [OSTI]

    Tankersley, Jerome B. (Fredericksburg, VA); Boothe, Richard W. (Roanoke, VA); Konrad, Charles E. (Roanoke, VA)

    1995-01-01

    An electric vehicle drive train includes an electric motor and an associated speed sensor, a transmission operable in a speed reduction mode or a direct coupled mode, and a controller responsive to the speed sensor for operating the transmission in the speed reduction mode when the motor is below a predetermined value, and for operating the motor in the direct coupled mode when the motor speed is above a predetermined value. The controller reduces the speed of the motor, such as by regeneratively braking the motor, when changing from the speed reduction mode to the direct coupled mode. The motor speed may be increased when changing from the direct coupled mode to the speed reduction mode. The transmission is preferably a single stage planetary gearbox.

  5. Electric vehicle drive train with direct coupling transmission

    DOE Patents [OSTI]

    Tankersley, J.B.; Boothe, R.W.; Konrad, C.E.

    1995-04-04

    An electric vehicle drive train includes an electric motor and an associated speed sensor, a transmission operable in a speed reduction mode or a direct coupled mode, and a controller responsive to the speed sensor for operating the transmission in the speed reduction mode when the motor is below a predetermined value, and for operating the motor in the direct coupled mode when the motor speed is above a predetermined value. The controller reduces the speed of the motor, such as by regeneratively braking the motor, when changing from the speed reduction mode to the direct coupled mode. The motor speed may be increased when changing from the direct coupled mode to the speed reduction mode. The transmission is preferably a single stage planetary gearbox. 6 figures.

  6. Shell trajectory measurements from direct-drive implosion experiments

    SciTech Connect (OSTI)

    Michel, D. T.; Sorce, C.; Epstein, R.; Whiting, N.; Igumenshchev, I. V.; Jungquist, R.; Froula, D. H. [Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14636 (United States)

    2012-10-15

    A technique to measure the shell trajectory in direct-drive inertial confinement fusion implosions is presented. The x-ray self emission of the target is measured with an x-ray framing camera. Optimized filtering limits the x-ray emission from the corona plasma, isolating a sharp intensity gradient very near the ablation surface. This enables one to measure the radius of the imploding shell with an accuracy better than 1 {mu}m and to determine a 200-ps average velocity to better than 2%.

  7. Lightweighting Materials | Clean Energy | ORNL

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

    with lightweight materials can directly reduce fuel consump-tion. It also allows cars to carry advanced emissions control equipment, safety devices, and integrated...

  8. Crossed-beam energy transfer in direct-drive implosions

    SciTech Connect (OSTI)

    Seka, W; Edgell, D H; Michel, D T; Froula, D H; Goncharov, V N; Craxton, R S; Divol, L; Epstein, R; Follett, R; Kelly, J H; Kosc, T Z; Maximov, A V; McCrory, R L; Meyerhofer, D D; Michel, P; Myatt, J F; Sangster, T C; Shvydky, A; Skupsky, S

    2012-05-22

    Direct-drive-implosion experiments on the OMEGA laser [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)] have showed discrepancies between simulations of the scattered (non-absorbed) light levels and measured ones that indicate the presence of a mechanism that reduces laser coupling efficiency by 10%-20%. This appears to be due to crossed-beam energy transfer (CBET) that involves electromagnetic-seeded, low-gain stimulated Brillouin scattering. CBET scatters energy from the central portion of the incoming light beam to outgoing light, reducing the laser absorption and hydrodynamic efficiency of implosions. One-dimensional hydrodynamic simulations including CBET show good agreement with all observables in implosion experiments on OMEGA. Three strategies to mitigate CBET and improve laser coupling are considered: the use of narrow beams, multicolor lasers, and higher-Z ablators. Experiments on OMEGA using narrow beams have demonstrated improvements in implosion performance.

  9. Progress in Direct-Drive Inertial Confinement Fusion Research at the Laboratory for Laser Energetics

    SciTech Connect (OSTI)

    McCrory, R.L.; Meyerhofer, D.D.; Loucks, S.J.; Skupsky, S.; Betti, R.; Boehly, T.R.; Collins, T.J.B.; Craxton, R.S.; Delettrez, J.A.; Edgell, D.H.; Epstein, R.; Fletcher, K.A.; Freeman, C.; Frenje, J.A.; Glebov, V.Yu.; Goncharov, V.N.; Harding, D.R.; Igumenshchev, I.V.; Keck, R.L.; Kilkenny, J.D.; Knauer, J.P.; Li, C.K.; Marciante, J.; Marozas, J.a.; Marshall, F.J.; Maximov, A.V.; McKenty, P.W.; Morse, S.F.B.; Myatt, J.; Padalino, S.; Petrasso, R.D.; Radha, P.B.; Regan, S.P.; Sangster, T.C.; Seguin, F.H.; Seka, W.; Smalyuk, V.A.; Soures, J.M.; Stoeckl, C.; Yaakobi, B.; Zuegel, J.D.

    2006-06-28

    Direct-drive inertial confinement fusion (ICF) is expected to demonstrate high gain on the National Ignition Facility (NIF) in the next decade and is a leading candidate for inertial fusion energy production. The NIF will initially be configured for x-ray drive and with no beams placed at the target equator to provide a symmetric irradiation of a direct-drive capsule. LLE is developing the “polar-direct-drive” (PDD) approach that repoints beams toward the target equator. Initial 2-D simulations have shown ignition. A unique “Saturn-like” plastic ring around the equator refracts the laser light incident near the equator toward the target, improving the drive uniformity.

  10. DIRECT-DRIVE AND EDDY-CURRENT SEPTUM MAGNETS June 29, 2001

    E-Print Network [OSTI]

    Kemner, Ken

    DIRECT-DRIVE AND EDDY-CURRENT SEPTUM MAGNETS S. H. Kim June 29, 2001 Abstract -- Two types of thin septum magnets, direct drive and eddy current, were compared mainly in 2-D magnetic aspects. For the eddy-current type, the leakage fields calculated using OPERA-2d were compared with the calculations

  11. Implosion Experiments using Glass Ablators for Direct-Drive Inertial Confinement Fusion

    E-Print Network [OSTI]

    Smalyuk, V. A.

    Direct-drive implosions with 20-?m-thick glass shells were conducted on the Omega Laser Facility to test the performance of high-Z glass ablators for direct-drive, inertial confinement fusion. The x-ray signal caused by ...

  12. A new ignition scheme using hybrid indirect-direct drive for inertial confinement fusion

    E-Print Network [OSTI]

    Fan, Zhengfeng; Dai, Zhensheng; Cai, Hong-bo; Zhu, Shao-ping; Zhang, W Y; He, X T

    2013-01-01

    A new hybrid indirect-direct-drive ignition scheme is proposed for inertial confinement fusion: a cryogenic capsule encased in a hohlraum is first compressed symmetrically by indirect-drive x-rays, and then accelerated and ignited by both direct-drive lasers and x-rays. A steady high-density plateau newly formed between the radiation and electron ablation fronts suppresses the rarefaction at the radiation ablation front and greatly enhances the drive pressure. Meanwhile, multiple shock reflections at the fuel/hot-spot interface are prevented during capsule deceleration. Thus rapid ignition and burn are realized. In comparison with the conventional indirect drive, the hybrid drive implodes the capsule with a higher velocity ($\\sim4.3\\times10^7$ cm/s) and a much lower convergence ratio ($\\sim$25), and the growth of hydrodynamic instabilities is significantly reduced, especially at the fuel/hot-spot interface.

  13. Driving Directions to the UNCW Main Campus If traveling to Wilmington via I-40

    E-Print Network [OSTI]

    Olszewski Jr., Edward A.

    Driving Directions to the UNCW Main Campus If traveling to Wilmington via I-40 I-40 becomes NC 132 left into the Parking Deck. You will need to park on the main level in one of the designated visitor of Student Success (Room 1002) is in the lobby near the main building entrance. 2) From Reynolds Drive, turn

  14. MHK Technologies/Direct Drive Power Generation Buoy | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource HistoryScenarios Towards 2050 JumpCoosSloughAquantisInformation Drive Power

  15. Optimisation and comparison of integrated models of direct-drive linear machines for wave energy conversion 

    E-Print Network [OSTI]

    Crozier, Richard Carson

    2014-06-30

    Combined electrical and structural models of five types of permanent magnet linear electrical machines suitable for direct-drive power take-off on wave energy applications are presented. Electromagnetic models were ...

  16. Bearing options, including design and testing, for direct drive linear generators in wave energy converters 

    E-Print Network [OSTI]

    Caraher, Sarah

    2011-11-22

    The key focus of this research was to investigate the bearing options most suited to operation in a novel direct drive linear generator. This was done through bearing comparisons, modelling and testing. It is fundamental ...

  17. ACTIVE SUSPENSION CONTROL WITH DIRECT-DRIVE TUBULAR LINEAR BRUSHLESS PERMANENT-MAGNET MOTOR 

    E-Print Network [OSTI]

    Lee, Seungho

    2010-01-16

    Recently, active suspension has been applied to many commercial automobiles. To develop the control algorithm for active suspension, a quarter-car test bed was built by using a direct-drive tubular linear brushless permanent-magnet motor (LBPMM...

  18. Structural optimisation of permanent magnet direct drive generators for 5MW wind turbines 

    E-Print Network [OSTI]

    Zavvos, Aristeidis

    2013-11-28

    This thesis focuses on permanent magnet "direct drive" electrical generators for wind turbines with large power output. A variety of such generator topologies is reviewed, tested and optimised in an attempt to increase ...

  19. A direct-to-drive neural data acquisition system

    E-Print Network [OSTI]

    Bernstein, Jacob G.

    Driven by the increasing channel count of neural probes, there is much effort being directed to creating increasingly scalable electrophysiology data acquisition (DAQ) systems. However, all such systems still rely on ...

  20. Direct-Drive Inerital Confinement Fusion Research at the Laboratory for Laser Energetics: Charting the Path to Thermonuclear Ignition

    SciTech Connect (OSTI)

    McCrory, R.L.; Regan, S.P.; Loucks, S.J.; Meyerhofer, D.D.; Skupsky, S.; Betti, R.; Boehly, T.R.; Craxton, R.S.; Collins, T.J.B.; Delettrez, J.A.; Edgell, D.; Epstein, R.; Fletcher, K.A.; Freeman, C.; Frenje, J.A.; Glebov, V.Yu.; Goncharov, V.N.; Harding, D.R.; Igumenshchev, I.V.; Keck, R.L.; Kilkenny, J.D.; Knauer, J.P.; Li, C.K.; Marciante, J.; Marozas, J.A.; Marshall, F.J.; Maximov, A.V.; McKenty, P.W.; Myatt, J.; Padalino, S.; Petrasso, R.D.; Radha, P.B.; Sangster, T.C.; Seguin, F.H.; Seka, W.; Smalyuk, V.A.; Soures, J.M.; Stoeckl, C.; Yaakobi, B.; Zuegel, J.D.

    2005-10-07

    Significant theoretical and experimental progress continues to be made at the University of Rocheter's Laboratory for Laser Energetics (LLE), charting the path to direct-drive inertial confinement fusion (ICF) ignition. Direct drive offers the potential for higher-gain implosions than x-ray drive and is a leading candidate for an inertial fusion enery power plant.

  1. Wind turbine having a direct-drive drivetrain

    DOE Patents [OSTI]

    Bevington, Christopher M.; Bywaters, Garrett L.; Coleman, Clint C.; Costin, Daniel P.; Danforth, William L.; Lynch, Jonathan A.; Rolland, Robert H.

    2011-02-22

    A wind turbine comprising an electrical generator that includes a rotor assembly. A wind rotor that includes a wind rotor hub is directly coupled to the rotor assembly via a simplified connection. The wind rotor and generator rotor assembly are rotatably mounted on a central spindle via a bearing assembly. The wind rotor hub includes an opening having a diameter larger than the outside diameter of the central spindle adjacent the bearing assembly so as to allow access to the bearing assembly from a cavity inside the wind rotor hub. The spindle is attached to a turret supported by a tower. Each of the spindle, turret and tower has an interior cavity that permits personnel to traverse therethrough to the cavity of the wind rotor hub. The wind turbine further includes a frictional braking system for slowing, stopping or keeping stopped the rotation of the wind rotor and rotor assembly.

  2. Indirect-direct hybrid-drive work-dominated hotspot ignition for inertial confinement fusion

    E-Print Network [OSTI]

    He, X T; Li, J W; Liu, J; Lan, K; Wu, J F; Wang, L F; Ye, W H

    2015-01-01

    An indirect-direct hybrid-drive work-dominated hotspot ignition scheme for inertial confinement fusion is proposed: a layered fuel capsule inside a spherical hohlraum with an octahedral symmetry is compressed first by indirect-drive soft-x rays (radiation) and then by direct-drive lasers in last pulse duration. In this scheme, an enhanced shock and a follow-up compression wave for ignition with pressure far greater than the radiation ablation pressure are driven by the direct-drive lasers, and provide large pdV work to the hotspot to perform the work-dominated ignition. The numerical simulations show that the enhanced shock stops the reflections of indirect-drive shock at the main fuel-hotspot interface, and therefore significantly suppresses the hydrodynamic instabilities and asymmetry. Based on the indirect-drive implosion dynamics the hotspot is further compressed and heated by the enhanced shock and follow-up compression wave, resulting in the work-dominated hotspot ignition and burn with a maximal implos...

  3. Wind turbine having a direct-drive drivetrain

    DOE Patents [OSTI]

    Bevington, Christopher M.; Bywaters, Garrett L.; Coleman, Clint C.; Costin, Daniel P.; Danforth, William L.; Lynch, Jonathan A.; Rolland, Robert H.

    2008-10-07

    A wind turbine (100) comprising an electrical generator (108) that includes a rotor assembly (112). A wind rotor (104) that includes a wind rotor hub (124) is directly coupled to the rotor assembly via a simplified connection. The wind rotor and generator rotor assembly are rotatably mounted on a central spindle (160) via a bearing assembly (180). The wind rotor hub includes an opening (244) having a diameter larger than the outside diameter of the central spindle adjacent the bearing assembly so as to allow access to the bearing assembly from a cavity (380) inside the wind rotor hub. The spindle is attached to a turret (140) supported by a tower (136). Each of the spindle, turret and tower has an interior cavity (172, 176, 368) that permits personnel to traverse therethrough to the cavity of the wind rotor hub. The wind turbine further includes a frictional braking system (276) for slowing, stopping or keeping stopped the rotation of the wind rotor and rotor assembly.

  4. Directed transport in a classical lattice with a high-frequency driving

    E-Print Network [OSTI]

    A. P. Itin; A. I. Neishtadt

    2012-02-25

    We analyze the dynamics of a classical particle in a spatially periodic potential under the influence of a periodic in time uniform force. It was shown in [S.Flach, O.Yevtushenko, Y. Zolotaryuk, Phys. Rev. Lett. 84, 2358 (2000)] that despite zero average force, directed transport is possible in the system. Asymptotic description of this phenomenon for the case of slow driving was developed in [X. Leoncini, A. Neishtadt, A. Vasiliev, Phys. Rev. E 79, 026213 (2009)]. Here we consider the case of fast driving using canonical perturbation theory. An asymptotic formula is derived for the average drift velocity as a function of the system parameters and the driving law. We show that directed transport arises in an effective Hamiltonian that does not possess chaotic dynamics, thereby clarifying the relation between chaos and transport in the system. Sufficient conditions for transport are derived.

  5. Aalborg Universitet Ancillary Frequency Control of Direct Drive Full-Scale Converter Based Wind Power

    E-Print Network [OSTI]

    Hu, Weihao

    , integration of such a lot of wind energy into power grids presents a major challenge to power system operators more attentions all over the world. Large-scale wind power plants are increasingly integrated). Ancillary Frequency Control of Direct Drive Full-Scale Converter Based Wind Power Plants. In Proceedings

  6. Thermal Loading of a Direct Drive Target in Rarefied Gas B. R. Christensen1

    E-Print Network [OSTI]

    Raffray, A. René

    ) power plant, each fusion micro-explosion (~10 Hz) causes thermal and structural loads on the IFE reactorThermal Loading of a Direct Drive Target in Rarefied Gas B. R. Christensen1 , A. R. Raffray1 and M is to fill the reaction chamber with a gas, such as Xe, at low density. The gas will absorb much

  7. Ion energy measurements in a Direct Wave-Drive Matthew S. Feldman

    E-Print Network [OSTI]

    Ion energy measurements in a Direct Wave-Drive Thruster Matthew S. Feldman and Edgar Y. Choueiri difference is a DWDT operates continuously to inject wave momentum, whereas PIT discharges its energy Propulsion Laboratory, California Institute of Technology, Pasadena, California, 91109, USA An experiment

  8. Study of direct-drive, deuteriumtritium gas-filled plastic capsule implosions using nuclear diagnostics at OMEGA

    E-Print Network [OSTI]

    Study of direct-drive, deuterium­tritium gas-filled plastic capsule implosions using nuclear Received 24 April 2001; accepted 31 July 2001 Implosions of direct-drive, deuterium­tritium DT gas. Specifically, with a two-dimensional 2D single-color-cycle, 1-THz-bandwidth smoothing by spectral dispersion

  9. Nov 5-9, 2006 IAEA meeting, Vienna, Austria Target and Chamber Technologies for Direct-Drive

    E-Print Network [OSTI]

    Raffray, A. René

    Nov 5-9, 2006 IAEA meeting, Vienna, Austria 1 Target and Chamber Technologies for Direct-Drive cycle) Dry wall chamber (armor must accommodate ion+photon threat and provide required lifetime) · Multi-institution Activities led by NRL with the Goal of Developing a New Energy Source: IFE Based on Lasers, Direct Drive

  10. Rayleigh-Taylor Growth Stabilization in Direct-Drive Plastic Targets at Laser Intensities of 1 1015

    E-Print Network [OSTI]

    Rochester, New York 14623-1299, USA J. A. Frenje and R. D. Petrasso Plasma Science and Fusion Center,5] and direct [6­9] drive, mostly in planar geometry. Both classical and ablative RT instability linear growth-front heating when plasma corona temperatures exceed 3 keV. Direct-drive experiments and simulations have shown

  11. Enhanced Direct-Drive Implosions with Thin High-Z Ablation Layers

    SciTech Connect (OSTI)

    Mostovych, Andrew N.; Colombant, Denis G.; Karasik, Max; Schmitt, Andrew J.; Weaver, James L.; Knauer, James P.

    2008-02-22

    New direct-drive spherical implosion experiments with deuterium filled plastic shells have demonstrated significant and absolute (2x) improvements in neutron yield when the shells are coated with a very thin layer ({approx}200-400 A) of high-Z material such as palladium. This improvement is interpreted as resulting from increased stability of the imploding shell. These results provide for a possible path to control laser imprint and stability in laser-fusion-energy target designs.

  12. Direct-Drive Inertial Fusion Research at the University of Rochester's Laboratory for Laser Energetics: A Review

    SciTech Connect (OSTI)

    McCrory, R.L.; Meyerhofer, D.D.; Loucks, S.J.; Skupsky, S.; Bahr, R.E.; Betti, R.; Boehly, T.R.; Craxton, R.S.; Collins, T.J.B.; Delettrez, J.A.; Donaldson, W.R.; Epstein, R.; Fletcher, K.A.; Freeman, C.; Frenje, J.A.; Glebov, V.Yu.; Goncharov, V.N.; Harding, D.R.; Jaanimagi, P.A.; Keck, R.L.; Kelly, J.H.; Kessler, T.J.; Kilkenny, J.D.; Knauer, J.P.; Li, C.K.; Lund, L.D.; Marozas, J.A.; McKenty, P.W.; Marshall, F.J.; Morse, S.F.B.; Padalino, S.; Petrasso, R.D.; Radha, P.B.; Regan, S.P.; Roberts, S.; Sangster, T.C.; Seguin, F.H.; Seka, W.; Smalyuk, V.A.; Soures, J.M.; Stoeckl, C.; Thorp, K.A.; Yaakobi, B.; Zuegel, J.D.

    2010-04-16

    This paper reviews the status of direct-drive inertial confinement fusion (ICF) research at the University of Rochester's Laboratory for Laser Energetics (LLE). LLE's goal is to demonstrate direct-drive ignition on the National Ignition Facility (NIF) by 2014. Baseline "all-DT" NIF direct-drive ignition target designs have been developed that have a predicted gain of 45 (1-D) at a NIF drive energy of ~1.6 MJ. Significantly higher gains are calculated for targets that include a DT-wicked foam ablator. This paper also reviews the results of both warm fuel and initial cryogenic-fuel spherical target implosion experiments carried out on the OMEGA UV laser. The results of these experiments and design calculations increase confidence that the NIF direct-drive ICF ignition goal will be achieved.

  13. Comparative Assessment of Direct Drive High Temperature Superconducting Generators in Multi-Megawatt Class Wind Turbines

    SciTech Connect (OSTI)

    Maples, B.; Hand, M.; Musial, W.

    2010-10-01

    This paper summarizes the work completed under the CRADA between NREL and American Superconductor (AMSC). The CRADA combined NREL and AMSC resources to benchmark high temperature superconducting direct drive (HTSDD) generator technology by integrating the technologies into a conceptual wind turbine design, and comparing the design to geared drive and permanent magnet direct drive (PMDD) wind turbine configurations. Analysis was accomplished by upgrading the NREL Wind Turbine Design Cost and Scaling Model to represent geared and PMDD turbines at machine ratings up to 10 MW and then comparing cost and mass figures of AMSC's HTSDD wind turbine designs to theoretical geared and PMDD turbine designs at 3.1, 6, and 10 MW sizes. Based on the cost and performance data supplied by AMSC, HTSDD technology has good potential to compete successfully as an alternative technology to PMDD and geared technology turbines in the multi megawatt classes. In addition, data suggests the economics of HTSDD turbines improve with increasing size, although several uncertainties remain for all machines in the 6 to 10 MW class.

  14. Quasi-spherical direct drive fusion simulations for the Z machine and future accelerators.

    SciTech Connect (OSTI)

    VanDevender, J. Pace; McDaniel, Dillon Heirman; Roderick, Norman Frederick; Nash, Thomas J.

    2007-11-01

    We explored the potential of Quasi-Spherical Direct Drive (QSDD) to reduce the cost and risk of a future fusion driver for Inertial Confinement Fusion (ICF) and to produce megajoule thermonuclear yield on the renovated Z Machine with a pulse shortening Magnetically Insulated Current Amplifier (MICA). Analytic relationships for constant implosion velocity and constant pusher stability have been derived and show that the required current scales as the implosion time. Therefore, a MICA is necessary to drive QSDD capsules with hot-spot ignition on Z. We have optimized the LASNEX parameters for QSDD with realistic walls and mitigated many of the risks. Although the mix-degraded 1D yield is computed to be {approx}30 MJ on Z, unmitigated wall expansion under the > 100 gigabar pressure just before burn prevents ignition in the 2D simulations. A squeezer system of adjacent implosions may mitigate the wall expansion and permit the plasma to burn.

  15. Numerical analysis of the direct drive illumination uniformity for the Laser MegaJoule facility

    SciTech Connect (OSTI)

    Temporal, M., E-mail: mauro.temporal@hotmail.com [Centre de Mathématiques et de Leurs Applications, ENS Cachan and CNRS, 61 Av. du President Wilson, F-94235 Cachan Cedex (France); Canaud, B. [CEA, DIF, F-91297 Arpajon Cedex (France)] [CEA, DIF, F-91297 Arpajon Cedex (France); Garbett, W. J. [AWE plc, Aldermaston, Reading, Berkshire RG7 4PR (United Kingdom)] [AWE plc, Aldermaston, Reading, Berkshire RG7 4PR (United Kingdom); Ramis, R. [ETSI Aeronáuticos, Universidad Politécnica de Madrid, 28040 Madrid (Spain)] [ETSI Aeronáuticos, Universidad Politécnica de Madrid, 28040 Madrid (Spain)

    2014-01-15

    The illumination uniformity provided during the initial imprinting phase of the laser foot pulse in a direct drive scenario at the Laser MegaJoule facility has been analyzed. This study analyzes the quality of the illumination of a spherical capsule and concerns the uniformity of the first shock generate in the absorber of an Inertial Confinement Fusion capsule. Four configurations making use of all or some of the 80 laser beams organized in the 20 quads of the cones at 49° and 131° with respect to the polar axis have been considered in order to assemble the foot pulse. Elliptical and circular super-gaussian laser intensity profiles taking into account beam-to-beam power imbalance (10%), pointing error (50??m), and target positioning (20??m) have been considered. It has been found that the use of the Polar Direct Drive technique can in some cases reduce the irradiation non-uniformity by a factor as high as 50%. In all cases, elliptical profile provides better results in comparison with the circular one and it is shown that the minimum of the non-uniformity is also a function of the capsule radius.

  16. Lightweight PV Inverters: Dual Bi-Directional IGBTs Modules Enables Breakthrough PV Inverter Using Current Modulation Topology

    SciTech Connect (OSTI)

    2012-01-30

    Solar ADEPT Project: PV inverters convert DC power generated by modules into usable AC power. IPC’s initial 30kW 94lb. PV inverter reduces the weight of comparable 30kW PV inverters by 90%—reducing the cost of materials, manufacturing, shipping, and installation. With ARPA-E support, new bi-directional silicon power switches will be developed, commercialized, and utilized in IPC’s next-generation PV inverter. With these components, IPC will produce 100kW inverters that weight less than 100lb., reducing the weight of conventional 3,000lb. 100kW inverters by more than 95%. The new power switches will cut IPC’s $/W manufacturing cost in half, as well as further reduce indirect shipping and installation costs.

  17. Direct-Drive-Implosion Experiments with Enhanced Fluence Balance on OMEGA

    SciTech Connect (OSTI)

    Marshall, F.J.; Delettrez, J.A.; Epstein, R.; Forties, R.; Keck, R.L.; Kelly, J.H.; McKenty, P.W.; Regan, S.P.; Waxer, L.J.

    2004-01-01

    OAK-B135 Direct-drive experiments on OMEGA [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)] are now regularly performed with enhanced single-beam uniformity (1-THz-bandwidth smoothing by spectral dispersion, including distributed phase plates and polarization rotators). The on-target-beam-energy balance is determined by a set of beam pickoffs that are cross-calibrated to full beam calorimeters and by independent measurements for each beam of the losses incurred in transporting the beams to the target chamber. Variations of the illumination due to beam-to-beam, on-target energy differences and beam-to-beam shape differences can then introduce variations of the illumination and hence drive symmetry that will affect implosions. A new technique has been implemented that determines variations of the beam peak fluences at target chamber center on a full-power target shot by simultaneously measuring the x-ray flux produced by all 60 beams separated on a 4-mm-diam, Au-coated spherical target. The inferred beam-to-beam, peak-fluence variations are minimized by changing the gain of the last laser amplifier (enhanced fluence balance). Results of implosion experiments with enhanced balance show more spherically shaped stagnation cores, consistent with the reduction of low-spherical-harmonic-mode components (1-6) of the illumination nonuniformity.

  18. Laser irradiance scaling in polar direct drive implosions on the National Ignition Facility

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

    Murphy, T. J.; Krasheninnikova, N. S.; Kyrala, G. A.; Bradley, P. A.; Baumgaertel, J. A.; Cobble, J. A.; Hakel, P.; Hsu, S. C.; Kline, J. L.; Montgomery, D. S.; et al

    2015-09-17

    Polar-direct-drive experiments conducted at the National Ignition Facility [E. I. Moses, Fusion Sci. Technol. 54, 361 (2008)] performed at laser irradiance between 1 and 2×1015 W/cm2 exhibit increased hard x-ray emission, decreased neutron yield, and reduced areal density as the irradiance is increased. Experimental x-ray images at the higher irradiances show x-ray emission at the equator, as well as degraded symmetry, that is not predicted in hydrodynamic simulations using flux-limited energy transport, but that appear when non-local electron transport together with a model to account for cross beam energy transfer (CBET) is utilized. The reduction in laser power for equatorialmore »beams required in the simulations to reproduce the effects of CBET on the observed symmetry also reproduces the yield degradation consistent with experimental data.« less

  19. Effects of local defect growth in direct-drive cryogenic implosions on OMEGA

    SciTech Connect (OSTI)

    Igumenshchev, I. V.; Shmayda, W. T.; Harding, D. R.; Sangster, T. C.; Goncharov, V. N.; Department of Mechanical Engineering, University of Rochester, Rochester, New York 14623 ; Meyerhofer, D. D.; Department of Mechanical Engineering, University of Rochester, Rochester, New York 14623; Department of Physics and Astronomy, University of Rochester, Rochester, New York 14623

    2013-08-15

    Spherically symmetric, low-adiabat (adiabat ? ? 3) cryogenic direct-drive-implosion experiments on the OMEGA laser [T. R. Boehly et al., Opt. Commun. 133, 495 (1995)] yield less than 10% of the neutrons predicted in one-dimensional hydrodynamic simulations. Two-dimensional hydrodynamic simulations suggest that this performance degradation can be explained assuming perturbations from isolated defects of submicron to tens-of-micron scale on the outer surface or inside the shell of implosion targets. These defects develop during the cryogenic filling process and typically number from several tens up to hundreds for each target covering from about 0.2% to 1% of its surface. The simulations predict that such defects can significantly perturb the implosion and result in the injection of about 1 to 2 ?g of the hot ablator (carbon-deuterium) and fuel (deuterium-tritium) materials from the ablation surface into the targets. Both the hot mass injection and perturbations of the shell reduce the final shell convergence ratio and implosion performance. The injected carbon ions radiatively cool the hot spot, reducing the fuel temperature, and further reducing the neutron yield. The negative effect of local defects can be minimized by decreasing the number and size of these defects and/or using more hydrodynamically stable implosion designs with higher shell adiabat.

  20. Fusion Engineering and Design 82 (2007) 265290 Transient thermo-mechanical behavior of a direct-drive target

    E-Print Network [OSTI]

    Raffray, A. René

    2007-01-01

    injection in an inertial fusion energy (IFE) chamber, a direct-drive target is subject to heat loads from pellets using multiple laser beams. A two-dimensional bubble nucleation mode was added to the previouslyHe bubble formation; DT phase change 1. Introduction This study extends the research work at UCSD

  1. Total energy loss to fast ablator-ions and target capacitance of direct-drive implosions on OMEGA

    E-Print Network [OSTI]

    Energetics, Rochester, New York 14623, USA 3 Los Alamos National Laboratory, Los Alamos, New Mexico 87545Total energy loss to fast ablator-ions and target capacitance of direct-drive implosions on OMEGA N 19, 093101 (2012) Target normal sheath acceleration sheath fields for arbitrary electron energy

  2. Direct-drive cryogenic target implosion performance on OMEGAa... T. C. Sangster,b)

    E-Print Network [OSTI]

    -ice-surface roughness, the adiabat of the cryogenic fuel during the implosion, the laser power balance, and the single by the laser beams, producing a uniform radiation field of x rays. In this indirect-drive ICF concept,2 the x Laboratory. Independent of the drive scheme, the basic capsule concept for ignition on the NIF

  3. Production of direct drive cylindrical targets for inertial confinement fusion experiments

    SciTech Connect (OSTI)

    Elliott, N. E. (Norman E.); Day, R. D. (Robert D.); Hatch, D. J. (Douglas J.); Sandoval, D. L. (David L.); Gomez, V. M. (Veronica M.); Pierce, T. H. (Timothy H.); Elliott, J. E. (Joyce E.); Manzanares, R. (Ruben)

    2002-01-01

    We have made targets with cylindrical geometry for Inertial Confinement Fusion (ICF) experiments. These targets are used in hydrodynamic experiments on the OMEGA laser at the University of Rochester. The cylindrical design allows the study of three dimensional hydrodynamic effects in a pseudo 2D mode, simplifying data gathering and analysis. Direct drive refers to the fact that the target is illuminated directly by approximately 50 laser beams and is imploded by the material pressure generated from ablation of the outside of the target. The production of cylindrical targets involves numerous steps. These steps are shared in common with many other types of ICF targets but no other single target type encompasses such a wide range of fabrication techniques. These targets consist of a large number of individual parts, all fabricated from commercially purchased raw material, requiring many machining, assembly, electroplating and chemical process steps. Virtually every manufacturing and assembly process we currently possess is involved in the production of these targets. The generic target consists of a plastic cylinder (ablator) that is roughly lmm in diameter by 2.25mm long. The wall of the cylinder is roughly 0.07mm thick. There is an aluminum cylinder 0.5mm wide and O.Olmm thick centered on the inside of the plastic cylinder and coaxial with the outside plastic cylinder. The outside of this aluminum band has surface finishes of differing random average roughness. The required average surface roughness is determined in advance by experimental design based on the amount of turbulent mix to be observed. The interior of the cylinder is filled with low density polystyrene foam that is made in house. To produce a finished target additional features are added to each target. X-ray backlighters are cantilevered off the target that allow time resolved x-ray images of the imploding target to be recorded during the experiment. The x-ray backlighters are driven by additional laser beams that are delayed to record an image at the appropriate time after the main beams are fired. An aperture to limit the area imaged and reduce x-ray background is placed on the target opposite the backlighters. Finally, alignment fibers that allow the target to be located precisely in three dimensional space before being shot are placed in several locations on the outside of the target.

  4. Plasma channel from EP beam Direct-drive ignition is the main thrust in LLE

    E-Print Network [OSTI]

    -drive ignition; this is not an optimal configuration fordirectdrivethatrequiressphericalillumination I2093 26 kJ Scale 1:70 in energy Scale 1:1 Scale 1:1 #12;Hydro-equivalentignitiononOMEGA #12;Ignition

  5. Three-dimensional symmetry analysis of a direct-drive irradiation scheme for the laser megajoule facility

    SciTech Connect (OSTI)

    Ramis, R., E-mail: rafael.ramis@upm.es [E.T.S.I. Aeronáuticos, Universidad Politécnica de Madrid, P. Cardenal Cisneros 3, E-28040 Madrid (Spain); Temporal, M. [Centre de Mathématiques et de Leurs Applications, ENS Cachan and CNRS, 61 Av. du President Wilson, F-94235 Cachan Cedex (France); Canaud, B.; Brandon, V. [CEA, DIF, F-91297 Arpajon (France)

    2014-08-15

    The symmetry of a Direct-Drive (DD) irradiation scheme has been analyzed by means of three-dimensional (3D) simulations carried out by the code MULTI (R. Ramis et al., Comput. Phys. Commun. 49, 475 (1988)) that includes hydrodynamics, heat transport, and 3D laser ray-tracing. The implosion phase of a target irradiated by the Laser Megajoule (LMJ) facility in the context of the Shock Ignition scheme has been considered. The LMJ facility has been designed for Indirect-Drive, and by this reason that the irradiation scheme must be modified when used for DD. Thus, to improve the implosion uniformity to acceptable levels, the beam centerlines should be realigned and the beam power balance should be adjusted. Several alternatives with different levels of complexity are presented and discussed.

  6. Switching Strategy for Direct Model Predictive Control in Power Converter and Drive Applications

    E-Print Network [OSTI]

    Noé, Reinhold

    of permanent magnet synchronous motors with interior magnets (IPMSM). Index Terms--Direct Model Predictive Direct-MPC approaches, a more flexible gate-signal generation method which enables switching during

  7. Hydrodynamic growth of shell modulations in the deceleration phase of spherical direct-drive implosionsa...

    E-Print Network [OSTI]

    Hydrodynamic growth of shell modulations in the deceleration phase of spherical direct. Se´guin Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge .2 The unstable growth of target nonuniformities is the most significant factor disrupting

  8. Development and validation of compressible mixture viscous fluid algorithm applied to predict the evolution of inertial fusion energy chamber gas and the impact of gas on direct-drive target survival

    E-Print Network [OSTI]

    Martin, Robert Scott

    2011-01-01

    and technologies for fusion energy with lasers and direct-direct drive inertial fusion energy targets. Report 06-02,Improved Inertial Fusion Energy Chamber Inter-Shot

  9. A Lightweight Cryptographic System for Implantable Biosensors

    E-Print Network [OSTI]

    De Micheli, Giovanni

    A Lightweight Cryptographic System for Implantable Biosensors Sara S. Ghoreishizadeh, Tolga Yalc presents a lightweight cryptographic system integrated onto a multi-function implantable biosensor--Lightweight encryption, Keccak hash function, Authentication, Privacy, Implantable biosensor. I. INTRODUCTION Recently

  10. Center for Lightweighting Automotive Materials and Processing...

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

    ti010mallick2011o.pdf More Documents & Publications Center for Lightweighting Automotive Materials and Processing GATE Center of Excellence in Lightweight Materials and...

  11. UTILIZATION OF LIGHTWEIGHT MATERIALS MADE FROM COAL GASIFICATION SLAGS

    SciTech Connect (OSTI)

    Vas Choudhry; Stephen Kwan; Steven R. Hadley

    2001-07-01

    The objective of the project entitled ''Utilization of Lightweight Materials Made from Coal Gasification Slags'' was to demonstrate the technical and economic viability of manufacturing low-unit-weight products from coal gasification slags which can be used as substitutes for conventional lightweight and ultra-lightweight aggregates. In Phase I, the technology developed by Praxis to produce lightweight aggregates from slag (termed SLA) was applied to produce a large batch (10 tons) of expanded slag using pilot direct-fired rotary kilns and a fluidized bed calciner. The expanded products were characterized using basic characterization and application-oriented tests. Phase II involved the demonstration and evaluation of the use of expanded slag aggregates to produce a number of end-use applications including lightweight roof tiles, lightweight precast products (e.g., masonry blocks), structural concrete, insulating concrete, loose fill insulation, and as a substitute for expanded perlite and vermiculite in horticultural applications. Prototypes of these end-use applications were made and tested with the assistance of commercial manufacturers. Finally, the economics of expanded slag production was determined and compared with the alternative of slag disposal. Production of value-added products from SLA has a significant potential to enhance the overall gasification process economics, especially when the avoided costs of disposal are considered.

  12. Lightweight flywheel containment

    DOE Patents [OSTI]

    Smith, James R. (Livermore, CA)

    2001-01-01

    A lightweight flywheel containment composed of a combination of layers of various material which absorb the energy of a flywheel structural failure. The various layers of material act as a vacuum barrier, momentum spreader, energy absorber, and reaction plate. The flywheel containment structure has been experimentally demonstrated to contain carbon fiber fragments with a velocity of 1,000 m/s and has an aerial density of less than 6.5 g/square centimeters. The flywheel containment, may for example, be composed of an inner high toughness structural layer, and energy absorbing layer, and an outer support layer. Optionally, a layer of impedance matching material may be utilized intermediate the flywheel rotor and the inner high toughness layer.

  13. Lightweight flywheel containment

    DOE Patents [OSTI]

    Smith, James R.

    2004-06-29

    A lightweight flywheel containment composed of a combination of layers of various material which absorb the energy of a flywheel structural failure. The various layers of material act as a vacuum barrier, momentum spreader, energy absorber, and reaction plate. The flywheel containment structure has been experimentally demonstrated to contain carbon fiber fragments with a velocity of 1,000 m/s and has an aerial density of less than 6.5 g/square centimeters. The flywheel containment, may for example, be composed of an inner high toughness structural layer, and energy absorbing layer, and an outer support layer. Optionally, a layer of impedance matching material may be utilized intermediate the flywheel rotor and the inner high toughness layer.

  14. Lightweight Email Signatures (Extended Abstract)

    E-Print Network [OSTI]

    Adida, Ben

    2006-01-01

    We present Lightweight Email Signatures (LES), a simple cryptographic architecture for authenticating email. LES is an extension of DKIM, the recent IETF effort to standardize domain-based email signatures. LES shares ...

  15. Vehicle Technologies Office: 2010 Lightweight Materials R&D Annual...

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

    Lightweight Materials R&D Annual Progress Report Vehicle Technologies Office: 2010 Lightweight Materials R&D Annual Progress Report The Lightweight Materials activity (LM) focuses...

  16. Mass-ablation-rate measurements in direct-drive cryogenic implosions using x-ray self-emission images

    SciTech Connect (OSTI)

    Davis, A. K., E-mail: adavi@lle.rochester.edu; Michel, D. T.; Hu, S. X.; Craxton, R. S.; Epstein, R.; Goncharov, V. N.; Igumenshchev, I. V.; Sangster, T. C.; Froula, D. H. [Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14636 (United States)

    2014-11-15

    A technique to measure the mass ablation rate in direct-drive inertial confinement fusion implosions using a pinhole x-ray framing camera is presented. In target designs consisting of two layers of different materials, two x-ray self-emission peaks from the coronal plasma were measured once the laser burned through the higher-Z outer layer. The location of the inner peak is related to the position of the ablation front and the location of the outer peak corresponds to the position of the interface of the two layers in the plasma. The emergence of the second peak was used to measure the burnthrough time of the outer layer, giving the average mass ablation rate of the material and instantaneous mass remaining. By varying the thickness of the outer layer, the mass ablation rate can be obtained as a function of time. Simulations were used to validate the methods and verify that the measurement techniques are not sensitive to perturbation growth at the ablation surface.

  17. Observation of early shell-dopant mix in OMEGA direct-drive implosions and comparisons with radiation-hydrodynamic simulations

    SciTech Connect (OSTI)

    Baumgaertel, J. A.; Bradley, P. A.; Hsu, S. C.; Cobble, J. A.; Hakel, P.; Tregillis, I. L.; Krasheninnikova, N. S.; Murphy, T. J.; Schmitt, M. J.; Shah, R. C.; Obrey, K. D.; Batha, S.; Johns, H.; Joshi, T.; Mayes, D.; Mancini, R. C.; Nagayama, T.

    2014-05-15

    Temporally, spatially, and spectrally resolved x-ray image data from direct-drive implosions on OMEGA were interpreted with the aid of radiation-hydrodynamic simulations. Neither clean calculations nor those using a turbulent mix model can explain fully the observed migration of shell-dopant material (titanium) into the core. Shell-dopant migration was observed via time-dependent, spatially integrated spectra, and spatially and spectrally resolved x-ray images of capsule implosions and resultant dopant emissions. The titanium emission was centrally peaked in narrowband x-ray images. In post-processed clean simulations, the peak titanium emission forms in a ring in self-emission images as the capsule implodes. Post-processed simulations with mix reproduce trends in time-dependent, spatially integrated spectra, as well having centrally peaked Ti emission in synthetic multiple monochromatic imager. However, mix simulations still do not transport Ti to the core as is observed in the experiment. This suggests that phenomena in addition to the turbulent mix must be responsible for the transport of Ti. Simple diffusion estimates are unable to explain the early Ti mix into the core. Mechanisms suggested for further study are capsule surface roughness, illumination non-uniformity, and shock entrainment.

  18. Accessing Your EM Data Through the File Server A major problem of putting flash drives directly into the microscope

    E-Print Network [OSTI]

    Baker, Timothy S.

    into the microscope computer is the threat of viruses. A particularly malevolent virus could shut the microscope down including your home computer. Here are the steps for transferring and accessing your files. 1. On the microscope computer go to the Desktop and then to: My Computer/Tools/M ap Network Drive. 2. In the Drive: box

  19. Lightweighting Impacts on Fuel Economy, Cost, and Component Losses

    SciTech Connect (OSTI)

    Brooker, A. D.; Ward, J.; Wang, L.

    2013-01-01

    The Future Automotive Systems Technology Simulator (FASTSim) is the U.S. Department of Energy's high-level vehicle powertrain model developed at the National Renewable Energy Laboratory. It uses a time versus speed drive cycle to estimate the powertrain forces required to meet the cycle. It simulates the major vehicle powertrain components and their losses. It includes a cost model based on component sizing and fuel prices. FASTSim simulated different levels of lightweighting for four different powertrains: a conventional gasoline engine vehicle, a hybrid electric vehicle (HEV), a plug-in hybrid electric vehicle (PHEV), and a battery electric vehicle (EV). Weight reductions impacted the conventional vehicle's efficiency more than the HEV, PHEV and EV. Although lightweighting impacted the advanced vehicles' efficiency less, it reduced component cost and overall costs more. The PHEV and EV are less cost effective than the conventional vehicle and HEV using current battery costs. Assuming the DOE's battery cost target of $100/kWh, however, the PHEV attained similar cost and lightweighting benefits. Generally, lightweighting was cost effective when it costs less than $6/kg of mass eliminated.

  20. Using lightweight unmanned aerial vehicles to monitor tropical forest recovery

    E-Print Network [OSTI]

    Zahawi, RA; Dandois, JP; Holl, KD; Nadwodny, D; Reid, JL; Ellis, EC

    2015-01-01

    Lightweight unmanned aerial vehicles will revolutionizelightweight unmanned aerial vehicles to monitor tropicalfrom lightweight unmanned aerial vehicles (UAV) are a cost-

  1. Vehicle Technologies Office: Lightweighting Video Text Version

    Broader source: Energy.gov [DOE]

    This is a text version of the Motorweek video segment Materials Technology / Vehicle Lightweighting, which aired on April 21, 2014. The full video is on the Lightweight Materials for Cars and...

  2. Light-Weight, Low-Cost, Single-Phase, Liquid-Cooled Cold Plate (Presentation)

    SciTech Connect (OSTI)

    Narumanchi, S.

    2013-07-01

    This presentation, 'Light-Weight, Low-Cost, Single-Phase Liquid-Cooled Cold Plate,' directly addresses program goals of increased power density, specific power, and lower cost of power electronics components through improved thermal management.

  3. Light-Weight, Single-Phase, Liquid-Cooled Cold Plate (Presentation)

    SciTech Connect (OSTI)

    Narumanchi, S.

    2013-07-01

    This presentation, 'Light-Weight, Low-Cost, Single-Phase Liquid-Cooled Cold Plate,' directly addresses program goals of increased power density, specific power, and lower cost of power electronics components through improved thermal management.

  4. W4E HYDROPOWER DIRECT DRIVE IN-LINE HYDROTURBINE GENERATOR FULL SCALE PROTOTYPE VALIDATION TESTING REPORT MAY 2013 ALDEN LABORATORIES

    SciTech Connect (OSTI)

    Cox, Chad W

    2013-09-24

    The W4E is a patent-pending, direct-drive, variable force turbine/generator. The equipment generates electricity through the water dependent engagement of a ring of rotating magnets with coils mounted on a stator ring. Validation testing of the W4e was performed at Alden Laboratories in the Spring of 2013. The testing was independently observed and validated by GZA GeoEnvironmental, Inc. The observations made during testing and the results of the testing are included in the Test Summary Report

  5. Assess the key physics that underpins high-hydro coupling-efficiency in NDCX-II experiments and high-gain heavy ion direct drive target designs using proven hydro codes like HYDRA

    E-Print Network [OSTI]

    Barnard, J. J.

    2010-01-01

    analysis o f direct drive fusion energy targets using heavyof Science, Office of Fusion Energy Sciences, of the U.S.of Science, Office of Fusion Energy Sciences, of the U.S.

  6. Pulse Pressure Forming of Lightweight Materials, Development...

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

    Materials, Development of High Strength Superplastic Al Sheet, Friction Stir Spot Welding of Advanced High Strength Steels Pulse Pressure Forming of Lightweight Materials,...

  7. Lightweighting and Propulsion Materials Roadmapping Workshop...

    Energy Savers [EERE]

    Lightweighting and Propulsion Materials Roadmapping Workshop Outbrief 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer...

  8. Manufacturing of Profiles for Lightweight Structures

    SciTech Connect (OSTI)

    Chatti, Sami; Kleiner, Matthias

    2007-04-07

    The paper shows some investigation results about the production of straight and curved lightweight profiles for lightweight structures and presents their benefits as well as their manufacturing potential for present and future lightweight construction. A strong emphasis is placed on the manufacturing of straight and bent profiles by means of sheet metal bending of innovative products, such as tailor rolled blanks and tailored tubes, and the manufacturing of straight and curved profiles by the innovative procedures curved profile extrusion and composite extrusion, developed at the Institute of Forming Technology and Lightweight Construction (IUL) of the University of Dortmund.

  9. Ultra-lightweight nanorelief networks : photopatterned microframes

    E-Print Network [OSTI]

    Choi, Taeyi

    2007-01-01

    Lightweight nano-network structures in polymers have been fabricated and investigated for their mechanical properties. Fabrication techniques via holographic interference lithography and phase mask lithography were implemented ...

  10. Center for Lightweighting Automotive Materials and Processing...

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

    D.C. ti06mallick.pdf More Documents & Publications Center for Lightweighting Automotive Materials and Processing 2008 Annual Merit Review Results Summary - 16. Technology...

  11. Advanced Materials for Lightweight Valve Train Components | Department...

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

    for Lightweight Valve Train Components Advanced Materials for Lightweight Valve Train Components Presentation from the U.S. DOE Office of Vehicle Technologies "Mega" Merit Review...

  12. FY 2008 Progress Report for Lightweighting Materials - 8. Polymer...

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

    8. Polymer Composites Research and Development FY 2008 Progress Report for Lightweighting Materials - 8. Polymer Composites Research and Development Lightweighting Materials...

  13. 2011 Annual Progress Report for Lightweighting Materials | Department...

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

    3polymercomposites.pdf More Documents & Publications FY 2009 Progress Report for Lightweighting Materials - 7. Low-Cost Carbon Fiber FY 2008 Progress Report for Lightweighting...

  14. FY 2009 Progress Report for Lightweighting Materials - A. Acronyms...

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

    2009 Progress Report for Lightweighting Materials - A. Acronyms and Abbreviations The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction...

  15. FY 2009 Progress Report for Lightweighting Materials - 8. Polymer...

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

    for Lightweighting Materials - 8. Polymer Composites Research and Development The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction...

  16. FY 2009 Progress Report for Lightweighting Materials - 1. Introduction...

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

    FY 2009 Progress Report for Lightweighting Materials - 1. Introduction The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction...

  17. FY 2009 Progress Report for Lightweighting Materials - disclaimer...

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

    FY 2009 Progress Report for Lightweighting Materials - disclaimer and back cover The primary Lightweight Materials activity goal is to validate a cost-effective weight...

  18. FY 2009 Progress Report for Lightweighting Materials - 12. Materials...

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

    for Lightweighting Materials - 12. Materials Crosscutting Research and Development The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction...

  19. FY 2009 Progress Report for Lightweighting Materials - 11. Recycling...

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

    1. Recycling FY 2009 Progress Report for Lightweighting Materials - 11. Recycling The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction...

  20. FY 2009 Progress Report for Lightweighting Materials - Cover...

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

    Contents FY 2009 Progress Report for Lightweighting Materials - Cover and Contents The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction...

  1. FY 2009 Progress Report for Lightweighting Materials - 7. Low...

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

    FY 2009 Progress Report for Lightweighting Materials - 7. Low-Cost Carbon Fiber The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction...

  2. FY 2009 Progress Report for Lightweighting Materials - 10. Nondestruct...

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

    Lightweighting Materials - 10. Nondestructive Evaluation Non-Destructive Inspection of Adhesive Bonds in Metal-Metal Joints 2011 Annual Progress Report for Lightweighting Materials...

  3. FY 2008 Progress Report for Lightweighting Materials - 10. Nondestruct...

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

    Lightweighting Materials - 10. Nondestructive Evaluation Non-Destructive Inspection of Adhesive Bonds in Metal-Metal Joints 2011 Annual Progress Report for Lightweighting Materials...

  4. Renewable, Low-Cost Carbon Fiber for Lightweight Vehicles: Summary...

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

    Renewable, Low-Cost Carbon Fiber for Lightweight Vehicles: Summary Report Renewable, Low-Cost Carbon Fiber for Lightweight Vehicles: Summary Report This report outlines the final...

  5. FY 2008 Progress Report for Lightweighting Materials - Disclaimer...

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

    Disclaimer FY 2008 Progress Report for Lightweighting Materials - Disclaimer Lightweighting Materials focuses on the development and validation of advanced materials and...

  6. FY 2009 Progress Report for Lightweighting Materials - 6. Automotive...

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

    6. Automotive Metals - Crosscutting FY 2009 Progress Report for Lightweighting Materials - 6. Automotive Metals - Crosscutting The primary Lightweight Materials activity goal is to...

  7. FY 2008 Progress Report for Lightweighting Materials - 2. Automotive...

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

    2. Automotive Metals-Wrought FY 2008 Progress Report for Lightweighting Materials - 2. Automotive Metals-Wrought Lightweighting Materials focuses on the development and validation...

  8. FY 2008 Progress Report for Lightweighting Materials - 5. Automotive...

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

    5. Automotive Metals-Steel FY 2008 Progress Report for Lightweighting Materials - 5. Automotive Metals-Steel Lightweighting Materials focuses on the development and validation of...

  9. FY 2008 Progress Report for Lightweighting Materials - 4. Automotive...

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

    4. Automotive Metals-Titanium FY 2008 Progress Report for Lightweighting Materials - 4. Automotive Metals-Titanium Lightweighting Materials focuses on the development and...

  10. FY 2009 Progress Report for Lightweighting Materials - 3. Automotive...

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

    3. Automotive Metals - Cast FY 2009 Progress Report for Lightweighting Materials - 3. Automotive Metals - Cast The primary Lightweight Materials activity goal is to validate a...

  11. FY 2009 Progress Report for Lightweighting Materials - 4. Automotive...

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

    4. Automotive Metals - Titanium FY 2009 Progress Report for Lightweighting Materials - 4. Automotive Metals - Titanium The primary Lightweight Materials activity goal is to...

  12. FY 2009 Progress Report for Lightweighting Materials - 5. Automotive...

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

    5. Automotive Metals - Steel FY 2009 Progress Report for Lightweighting Materials - 5. Automotive Metals - Steel The primary Lightweight Materials activity goal is to validate a...

  13. FY 2008 Progress Report for Lightweighting Materials - 6. Automotive...

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

    6. Automotive Metals-Crosscutting FY 2008 Progress Report for Lightweighting Materials - 6. Automotive Metals-Crosscutting Lightweighting Materials focuses on the development and...

  14. FY 2009 Progress Report for Lightweighting Materials - 2. Automotive...

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

    2. Automotive Metals - Wrought FY 2009 Progress Report for Lightweighting Materials - 2. Automotive Metals - Wrought The primary Lightweight Materials activity goal is to validate...

  15. FY 2008 Progress Report for Lightweighting Materials - 3. Automotive...

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

    3. Automotive Metals-Cast FY 2008 Progress Report for Lightweighting Materials - 3. Automotive Metals-Cast Lightweighting Materials focuses on the development and validation of...

  16. High-flexibility, noncollapsing lightweight hose

    DOE Patents [OSTI]

    Williams, D.A.

    1993-04-20

    A high-flexibility, noncollapsing, lightweight, large-bore, wire-reinforced hose is inside fiber-reinforced PVC tubing that is flexible, lightweight, and abrasion resistant. It provides a strong, kink- and collapse-free conduit for moving large quantities of dangerous fluids, e.g., removing radioactive waste water or processing chemicals.

  17. Exploring Energy Efficiency of Lightweight Block Ciphers

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Exploring Energy Efficiency of Lightweight Block Ciphers Subhadeep Banik1 , Andrey Bogdanov1 of r at which an r-round unrolled architecture for a cipher is likely to be most energy efficient. We of the metrics that define a good lightweight design is the energy consumed per unit operation of the algorithm

  18. High-flexibility, noncollapsing lightweight hose

    DOE Patents [OSTI]

    Williams, David A. (Pittsburgh, PA)

    1993-01-01

    A high-flexibility, noncollapsing, lightweight, large-bore, wire-reinforced hose is inside fiber-reinforced PVC tubing that is flexible, lightweight, and abrasion resistant. It provides a strong, kink- and collapse-free conduit for moving large quantities of dangerous fluids, e.g., removing radioactive waste water or processing chemicals.

  19. Lightweighting Automotive Materials for Increased Fuel Efficiency and Delivering Advanced Modeling and Simulation Capabilities to U.S. Manufacturers

    SciTech Connect (OSTI)

    Hale, Steve

    2013-09-11

    Abstract The National Center for Manufacturing Sciences (NCMS) worked with the U.S. Department of Energy (DOE), National Energy Technology Laboratory (NETL), to bring together research and development (R&D) collaborations to develop and accelerate the knowledgebase and infrastructure for lightweighting materials and manufacturing processes for their use in structural and applications in the automotive sector. The purpose/importance of this DOE program: • 2016 CAFÉ standards. • Automotive industry technology that shall adopt the insertion of lightweighting material concepts towards manufacturing of production vehicles. • Development and manufacture of advanced research tools for modeling and simulation (M&S) applications to reduce manufacturing and material costs. • U.S. competitiveness that will help drive the development and manufacture of the next generation of materials. NCMS established a focused portfolio of applied R&D projects utilizing lightweighting materials for manufacture into automotive structures and components. Areas that were targeted in this program: • Functionality of new lightweighting materials to meet present safety requirements. • Manufacturability using new lightweighting materials. • Cost reduction for the development and use of new lightweighting materials. The automotive industry’s future continuously evolves through innovation, and lightweight materials are key in achieving a new era of lighter, more efficient vehicles. Lightweight materials are among the technical advances needed to achieve fuel/energy efficiency and reduce carbon dioxide (CO2) emissions: • Establish design criteria methodology to identify the best materials for lightweighting. • Employ state-of-the-art design tools for optimum material development for their specific applications. • Match new manufacturing technology to production volume. • Address new process variability with new production-ready processes.

  20. Effects of Fuel-Shell Mix upon Direct-Drive, Spherical Implosions on OMEGA C. K. Li, F. H. Seguin, J. A. Frenje, S. Kurebayashi, and R. D. Petrasso*

    E-Print Network [OSTI]

    Effects of Fuel-Shell Mix upon Direct-Drive, Spherical Implosions on OMEGA C. K. Li, F. H. Se September 2002) Fuel-shell mix and implosion performance are studied for many capsule types in direct shortfalls are likely to be caused by fuel-shell mix. DOI: 10.1103/PhysRevLett.89.165002 PACS numbers: 52

  1. Lightweight Cryptography Workshop 2015 Gaithersburg, MD

    E-Print Network [OSTI]

    , cyber-physical systems, and the Internet of Things Case studies of deployed systems Evaluation of threats, attacks and risks in lightweight cryptography Restrictions and protections to reduce the risk

  2. Lightweight Composite Materials for Heavy Duty Vehicles

    SciTech Connect (OSTI)

    Pruez, Jacky; Shoukry, Samir; Williams, Gergis; Shoukry, Mark

    2013-08-31

    The main objective of this project is to develop, analyze and validate data, methodologies and tools that support widespread applications of automotive lightweighting technologies. Two underlying principles are guiding the research efforts towards this objective: • Seamless integration between the lightweight materials selected for certain vehicle systems, cost-effective methods for their design and manufacturing, and practical means to enhance their durability while reducing their Life-Cycle-Costs (LCC). • Smooth migration of the experience and findings accumulated so far at WVU in the areas of designing with lightweight materials, innovative joining concepts and durability predictions, from applications to the area of weight savings for heavy vehicle systems and hydrogen storage tanks, to lightweighting applications of selected systems or assemblies in light–duty vehicles.

  3. Lightweight extendable and retractable pole

    DOE Patents [OSTI]

    Warren, J.L.; Brandt, J.E.

    1994-08-02

    A lightweight extendable and retractable telescopic pole is disclosed comprising a plurality of non-metallic telescoping cylinders with sliding and sealing surfaces between the cylinders, a first plug member on the upper end of the smallest cylinder, and a second plug member on the lower end of the largest cylinder, whereby fluid pressure admitted to the largest cylinder will cause the telescoping cylinders to slide relative to one another causing the pole to extend. An elastomeric member connects the first plug member with one of the intermediate cylinders to urge the cylinders back into a collapsed position when the fluid pressure in the cylinders is vented. Annular elastomer members are provided which seal one cylinder to another when the pole is fully extended and further serve to provide a cushion to prevent damage to the cylinders when the pole is urged back into its retractable position by the elastomeric members and the venting of the pressure. A value mechanism associated with the pole is provided to admit a fluid under pressure to the interior of the telescoping cylinders of the pole while pressurizing a pressure relief port having an opening larger than the inlet port in a closed position whereby removal of the pressure on the relief port will cause the relief port to open to quickly lower the pressure in the interior of the telescoping cylinders to thereby assist in the rapid retraction of the extended pole. 18 figs.

  4. Lightweight bladder lined pressure vessels

    DOE Patents [OSTI]

    Mitlitsky, Fred (1125 Canton Ave., Livermore, CA 94550); Myers, Blake (4650 Almond Cir., Livermore, CA 94550); Magnotta, Frank (1206 Bacon Way, Lafayette, CA 94549)

    1998-01-01

    A lightweight, low permeability liner for graphite epoxy composite compressed gas storage vessels. The liner is composed of polymers that may or may not be coated with a thin layer of a low permeability material, such as silver, gold, or aluminum, deposited on a thin polymeric layer or substrate which is formed into a closed bladder using torispherical or near torispherical end caps, with or without bosses therein, about which a high strength to weight material, such as graphite epoxy composite shell, is formed to withstand the storage pressure forces. The polymeric substrate may be laminated on one or both sides with additional layers of polymeric film. The liner may be formed to a desired configuration using a dissolvable mandrel or by inflation techniques and the edges of the film seamed by heat sealing. The liner may be utilized in most any type of gas storage system, and is particularly applicable for hydrogen, gas mixtures, and oxygen used for vehicles, fuel cells or regenerative fuel cell applications, high altitude solar powered aircraft, hybrid energy storage/propulsion systems, and lunar/Mars space applications, and other applications requiring high cycle life.

  5. Lightweight bladder lined pressure vessels

    DOE Patents [OSTI]

    Mitlitsky, F.; Myers, B.; Magnotta, F.

    1998-08-25

    A lightweight, low permeability liner is described for graphite epoxy composite compressed gas storage vessels. The liner is composed of polymers that may or may not be coated with a thin layer of a low permeability material, such as silver, gold, or aluminum, deposited on a thin polymeric layer or substrate which is formed into a closed bladder using tori spherical or near tori spherical end caps, with or without bosses therein, about which a high strength to weight material, such as graphite epoxy composite shell, is formed to withstand the storage pressure forces. The polymeric substrate may be laminated on one or both sides with additional layers of polymeric film. The liner may be formed to a desired configuration using a dissolvable mandrel or by inflation techniques and the edges of the film sealed by heat sealing. The liner may be utilized in most any type of gas storage system, and is particularly applicable for hydrogen, gas mixtures, and oxygen used for vehicles, fuel cells or regenerative fuel cell applications, high altitude solar powered aircraft, hybrid energy storage/propulsion systems, and lunar/Mars space applications, and other applications requiring high cycle life. 19 figs.

  6. Direct Drive Wave Energy Buoy

    SciTech Connect (OSTI)

    Rhinefrank, Ken

    2011-11-02

    Presentation from the 2011 Water Peer Review in which principal investigator discusses project progress and results for this project which will be used to inform the utility-scale design process, improve cost estimates, accurately forecast energy production and to observe system operation and survivability.

  7. Laser Direct Drive: Scientific Advances,

    E-Print Network [OSTI]

    target physics: 2. Laser (most costly component) is modular 3. Separate components lower cost · Simpler targets & physics · Predict Fusion Class Gains (> 140) at lower laser energy (500 kJ - 1 MJ) #12 encourage competition. It leads to innovation and a better product. And leads to it faster KrF DPSSL #12

  8. Direct Drive Wave Energy Buoy

    SciTech Connect (OSTI)

    Rhinefrank, Kenneth E.; Lenee-Bluhm, Pukha; Prudell, Joseph H.; Schacher, Alphonse A.; Hammagren, Erik J.; Zhang, Zhe

    2013-07-29

    The most prudent path to a full-scale design, build and deployment of a wave energy conversion (WEC) system involves establishment of validated numerical models using physical experiments in a methodical scaling program. This Project provides essential additional rounds of wave tank testing at 1:33 scale and ocean/bay testing at a 1:7 scale, necessary to validate numerical modeling that is essential to a utility-scale WEC design and associated certification.

  9. Dependence of Shell Mix on Feedthrough in Direct Drive Inertial Confinement Fusion S. P. Regan, J. A. Delettrez, V. N. Goncharov, F. J. Marshall, J. M. Soures, V. A. Smalyuk, P. B. Radha, B. Yaakobi,

    E-Print Network [OSTI]

    Dependence of Shell Mix on Feedthrough in Direct Drive Inertial Confinement Fusion S. P. Regan, J 87545, USA J. A. Frenje, C. K. Li, R. D. Petrasso, and F. H. Se´guin Plasma Science and Fusion Center May 2004) The mixing of cold, high-density shell plasma with the low-density, hot spot plasma

  10. H. J. Sutherland and P. W. Carlin, "Damage Measurements on the NWTC Direct-Drive, Variable-Speed Test Bed," 1998 ASME Wind Energy Symposium, AIAA/ASME, 1998,

    E-Print Network [OSTI]

    Renewable Energy Laboratory Golden, Colorado 80401 Abstract The NWTC (National Wind Technology Center-Speed Test Bed," 1998 ASME Wind Energy Symposium, AIAA/ASME, 1998, pp. 315-322. DAMAGE MEASUREMENTS ON THE NWTC DIRECT-DRIVE, VARIABLE-SPEED TEST BED* Herbert J. Sutherland Wind Energy Department Sandia

  11. High-Areal-Density Fuel Assembly in Direct-Drive Cryogenic Implosions T. C. Sangster, V. N. Goncharov, P. B. Radha, V. A. Smalyuk, R. Betti, R. S. Craxton,* J. A. Delettrez, D. H. Edgell,

    E-Print Network [OSTI]

    High-Areal-Density Fuel Assembly in Direct-Drive Cryogenic Implosions T. C. Sangster, V. N-relevant areal-density deuterium from implosions of capsules with cryogenic fuel layers at ignition 7 mg=cm2 (corresponding to estimated peak fuel densities in excess of 100 g=cm3 ) were inferred

  12. A PRECISE POSITION AND ATTITUDE DETERMINATION SYSTEM FOR LIGHTWEIGHT UNMANNED AERIAL VEHICLES

    E-Print Network [OSTI]

    Behnke, Sven

    A PRECISE POSITION AND ATTITUDE DETERMINATION SYSTEM FOR LIGHTWEIGHT UNMANNED AERIAL VEHICLES.wieland)@igg.uni-bonn.de, heiner.kuhlmann@uni-bonn.de KEY WORDS: Unmanned Aerial Vehicle, Direct Georeferencing, RTK-GPS, IMU, Extended Kalman Filtering, Real Time Operating System ABSTRACT: In many unmanned aerial vehicle (UAV

  13. Vehicle Technologies Office: 2013 Lightweight Materials R&D Annual...

    Energy Savers [EERE]

    3 Lightweight Materials R&D Annual Progress Report Vehicle Technologies Office: 2013 Lightweight Materials R&D Annual Progress Report As part of the U.S. Department of Energy's...

  14. Multi-Material Lightweight Vehicle Hurdles Into the Future |...

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

    Multi-Material Lightweight Vehicle Hurdles Into the Future Multi-Material Lightweight Vehicle Hurdles Into the Future October 28, 2014 - 3:26pm Addthis A team of vehicles experts...

  15. Optimization of High-Volume Warm Forming for Lightweight Sheet...

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

    High-Volume Warm Forming for Lightweight Sheet Alloys Optimization of High-Volume Warm Forming for Lightweight Sheet Alloys 2012 DOE Hydrogen and Fuel Cells Program and Vehicle...

  16. Southern Regional Center for Lightweight Innovative Design

    SciTech Connect (OSTI)

    2011-10-01

    The three major objectives of this Phase III project are: â?¢ To develop experimentally validated cradle-to-grave modeling and simulation tools to optimize automotive and truck components for lightweighting materials (aluminum, steel, and Mg alloys and polymer-based composites) with consideration of uncertainty to decrease weight and cost, yet increase the performance and safety in impact scenarios; â?¢ To develop multiscale computational models that quantify microstructure-property relations by evaluating various length scales, from the atomic through component levels, for each step of the manufacturing process for vehicles; and â?¢ To develop an integrated K-12 educational program to educate students on lightweighting designs and impact scenarios.

  17. 2011 Annual Progress Report for Lightweighting Materials

    Office of Energy Efficiency and Renewable Energy (EERE)

    As part of the U.S. Department of Energys (DOEs) Vehicle Technologies Program (VTP), the Lightweight Materials (LM) activity focuses on the development and validation of advanced materials and manufacturing technologies to significantly reduce light and heavy duty vehicle weight without compromising other attributes such as safety, performance, recyclability, and cost.

  18. Shape-Adaptive Ultra-Lightweight

    E-Print Network [OSTI]

    of a concentrating solar power system. Traditional solar concentrators have no corrective capabilities to compensateShape-Adaptive Ultra-Lightweight Solar Concentrators Solar concentrators are key components the aberrations due to external disturbances during installation and operation, preventing the solar power system

  19. Lightweight Message Authentication for the Internet of

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Lightweight Message Authentication for the Internet of Things RIKARD HÖGLUND KTH ROYAL INSTITUTE for the Internet of Things Rikard Höglund 2014-11-24 Master's Thesis Examiner and academic adviser Professor Gerald capable of connecting to the Internet has grown enormously. The Internet of Things describes a scenario

  20. Assess the key physics that underpins high-hydro coupling-efficiency in NDCX-II experiments and high-gain heavy ion direct drive target designs using proven hydro codes like HYDRA

    SciTech Connect (OSTI)

    Barnard, J. J.; Hay, M. J.; Logan, B. G.; Ng, S. F.; Perkins, L. J.; Veitzer, S.; Yu, S. S.

    2010-07-01

    The simulations provided in this milestone have solidified the theoretical underpinning of direct drive targets and also the ability to design experiments on NDCX II that will enhance our understanding of ion-beam hydrodynamic coupling, and thus be relevant to IFE. For the case of the IFE targets, we have studied hydro and implosion efficiency using HYDRA in ID, a starting point towards the goal of polar direct drive in geometry compatible with liquid wall chambers. Recent analysis of direct drive fusion energy targets using heavy ion beams has found high coupling efficiency of ion beam energy into implosion energy. However, to obtain optimal coupling, the ion energy must increase during the pulse in order to penetrate the outflowing ablated material, and deposit the energy close enough to the fuel so that the fuel achieves sufficient implosion velocity. We have computationally explored ID (radial) time dependent models of ion driven direct drive capsule implosions using the Arbitrary Lagrangian-Eulerian (ALE) code HYDRA, to help validate the theoretical analysis done so far, particularly exploring the effects of varying the ion energy and ion current over the course of the pulse. On NDCX II, experiments have been proposed to explore issues of ion penetration of the outflowing plasma over the course of the ion pulse. One possibility is to create a first pulse of ions that heats a planar target, and produces an outflow of material. A second pulse, {approx}10 ns after the first, of higher ion energy (and hence larger projected range) will interact with this outflow before reaching and further heating the target. We have investigated whether the change in range can be tailored to match the evolution of the ablation front. We have carried out simulations using the one-dimensional hydrodynamic code DISH and HYDRA to set parameters for this class of experiments. DISH was upgraded with an ion deposition algorithm, and we have carried out ID (planar) simulations. HYDRA was also used for ID (planar) and 2D (r,z) simulations of potential experiments. We have also explored whether similar physics could be studied using an energy ramp (i.e., a velocity tilt) rather than two separate pulses. We have shown that an optimum occurs in the macropulse duration (with fixed velocity tilt) that maximizes the shock strength. In the area of IFE target design we have continued to explore direct drive targets composed of deuterium-tritium fuel and ablator layers. We have extended our previous target designs at 0.44 MJ drive energy, gain 50, (50 MeV foot, 500 MeV main pulse, Rb ion, which requires a large number of beams due to a high beam space charge constraint) to a power plant scale 3.7 MJ drive energy, gain {approx}150 (220 MeV foot, 2.2 GeV main pulse, Hg ion) that eases requirements on the accelerator. We have studied the effects of two important design choices on ICF target performance. We have shown that increasing the number of foot pulses may reduce the target's in-flight adiabat and consequently improve its compressibility and fusion yield. As in the case of laser drive, the first three shocks are the most important to the target's performance, with additional shocks contributing only marginally to compression and burn. We have also demonstrated that ion range lengthening during the main pulse can further reduce the target adiabat and improve the efficiency with which beam energy is coupled into the target. (Ion range lengthening using two different kinetic energies for the foot and main pulse has previously proven effective in the design of high gain targets).

  1. Southern Regional Center for Lightweight Innovative Design

    SciTech Connect (OSTI)

    2012-08-24

    The Southern Regional Center for Lightweight Innovative Design (SRCLID) has developed an experimentally validated cradle-to-grave modeling and simulation effort to optimize automotive components in order to decrease weight and cost, yet increase performance and safety in crash scenarios. In summary, the three major objectives of this project are accomplished: To develop experimentally validated cradle-to-grave modeling and simulation tools to optimize automotive and truck components for lightweighting materials (aluminum, steel, and Mg alloys and polymer-based composites) with consideration of uncertainty to decrease weight and cost, yet increase the performance and safety in impact scenarios; To develop multiscale computational models that quantify microstructure-property relations by evaluating various length scales, from the atomic through component levels, for each step of the manufacturing process for vehicles; and To develop an integrated K-12 educational program to educate students on lightweighting designs and impact scenarios. In this final report, we divided the content into two parts: the first part contains the development of building blocks for the project, including materials and process models, process-structure-property (PSP) relationship, and experimental validation capabilities; the second part presents the demonstration task for Mg front-end work associated with USAMP projects.

  2. Vehicle Technologies Office: 2012 Lightweight Materials R&D Annual...

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

    R&D Annual Progress Report 2011 Annual Progress Report for Lightweighting Materials Low-Cost Magnesium Sheet Production using the Twin Roll Casting Process and Asymmetric Rolling...

  3. FY 2008 Progress Report for Lightweighting Materials- 11. Recycling

    Broader source: Energy.gov [DOE]

    Lightweighting Materials focuses on the development and validation of advanced materials and manufacturing technologies to reduce automobile weight without compromising other attributes.

  4. FY 2009 Progress Report for Lightweighting Materials- 11. Recycling

    Broader source: Energy.gov [DOE]

    The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction in total vehicle weight while maintaining safety, performance, and reliability.

  5. FY 2008 Progress Report for Lightweighting Materials- 9. Joining

    Office of Energy Efficiency and Renewable Energy (EERE)

    Lightweighting Materials focuses on the development and validation of advanced materials and manufacturing technologies to reduce automobile weight without compromising other attributes.

  6. New Process Will Enable Expanded Use of Lightweight Materials...

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

    LLC, Aloca, and Pacific Northwest National Laboratory (PNNL) developed a friction stir welding process that reduces production time and costs while yielding strong and lightweight...

  7. FY 2009 Progress Report for Lightweighting Materials- Cover and Contents

    Office of Energy Efficiency and Renewable Energy (EERE)

    The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction in total vehicle weight while maintaining safety, performance, and reliability.

  8. FY 2008 Progress Report for Lightweighting Materials- 10. Nondestructive Evaluation

    Office of Energy Efficiency and Renewable Energy (EERE)

    Lightweighting Materials focuses on the development and validation of advanced materials and manufacturing technologies to reduce automobile weight without compromising other attributes.

  9. FY 2009 Progress Report for Lightweighting Materials- 10. Nondestructive Evaluation

    Office of Energy Efficiency and Renewable Energy (EERE)

    The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction in total vehicle weight while maintaining safety, performance, and reliability.

  10. FY 2008 Progress Report for Lightweighting Materials - Cover...

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

    Lightweighting Materials focuses on the development and validation of advanced materials and manufacturing technologies to reduce automobile weight without compromising other...

  11. Lightweight and Statistical Techniques for Petascale PetaScale Debugging

    SciTech Connect (OSTI)

    Miller, Barton

    2014-06-30

    This project investigated novel techniques for debugging scientific applications on petascale architectures. In particular, we developed lightweight tools that narrow the problem space when bugs are encountered. We also developed techniques that either limit the number of tasks and the code regions to which a developer must apply a traditional debugger or that apply statistical techniques to provide direct suggestions of the location and type of error. We extend previous work on the Stack Trace Analysis Tool (STAT), that has already demonstrated scalability to over one hundred thousand MPI tasks. We also extended statistical techniques developed to isolate programming errors in widely used sequential or threaded applications in the Cooperative Bug Isolation (CBI) project to large scale parallel applications. Overall, our research substantially improved productivity on petascale platforms through a tool set for debugging that complements existing commercial tools. Previously, Office Of Science application developers relied either on primitive manual debugging techniques based on printf or they use tools, such as TotalView, that do not scale beyond a few thousand processors. However, bugs often arise at scale and substantial effort and computation cycles are wasted in either reproducing the problem in a smaller run that can be analyzed with the traditional tools or in repeated runs at scale that use the primitive techniques. New techniques that work at scale and automate the process of identifying the root cause of errors were needed. These techniques significantly reduced the time spent debugging petascale applications, thus leading to a greater overall amount of time for application scientists to pursue the scientific objectives for which the systems are purchased. We developed a new paradigm for debugging at scale: techniques that reduced the debugging scenario to a scale suitable for traditional debuggers, e.g., by narrowing the search for the root-cause analysis to a small set of nodes or by identifying equivalence classes of nodes and sampling our debug targets from them. We implemented these techniques as lightweight tools that efficiently work on the full scale of the target machine. We explored four lightweight debugging refinements: generic classification parameters, such as stack traces, application-specific classification parameters, such as global variables, statistical data acquisition techniques and machine learning based approaches to perform root cause analysis. Work done under this project can be divided into two categories, new algorithms and techniques for scalable debugging, and foundation infrastructure work on our MRNet multicast-reduction framework for scalability, and Dyninst binary analysis and instrumentation toolkits.

  12. Winter Driving Tips Driving in Ice & Snow

    E-Print Network [OSTI]

    Capogna, Luca

    Winter Driving Tips Driving in Ice & Snow: When you must drive, clear the ice and snow from your in ice and snow, other drivers will be traveling cautiously. Don't disrupt the flow of traffic by driving handle better in ice and snow, but they do not have flawless traction, and skids can occur unexpectedly

  13. Direct

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit theCovalent BondingMeetingDifferences BetweenDirac Charge Dynamcs inDirect

  14. Directions

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit theCovalent BondingMeetingDifferencesPlatinum FuelEnergy InnovationDirections

  15. Lightweighting and Propulsion Materials Roadmapping Workshop Outbrief

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Financing Tool Fits the BillDepartment ofEnergyJoe25,Lighting Control TypesLightweighting and

  16. Shape-Adaptive Ultra-Lightweight Solar Concentrators

    E-Print Network [OSTI]

    RESEARCH HIGHLIGHTS Shape-Adaptive Ultra-Lightweight Solar Concentrators From the Resnick-Lightweight Solar Concentrators Global Significance Solar energy offers a number of benefits such as reducing solar power (CSP) uses mirrors to focus the sunlight down to 100-1000x the normal intensity, and uses

  17. Rotary drive mechanism

    SciTech Connect (OSTI)

    Kenderdine, E.W.

    1991-10-08

    This patent describes a rotary drive mechanism which includes a rotary solenoid having a stator and multi-poled rotor. A moving member rotates with the rotor and is biased by a biasing device. The biasing device causes a further rotational movement after rotation by the rotary solenoid. Thus, energization of the rotary solenoid moves the member in one direction to one position and biases the biasing device against the member. Subsequently, de- energization of the rotary solenoid causes the biasing device to move the member in the same direction to another position from where the moving member is again movable by energization and de-energization of the rotary solenoid. Preferably, the moving member is a multi-lobed cam having the same number of lobes as the rotor has poles. An anti- overdrive device is also preferably provided for preventing overdrive in the forward direction or a reverse rotation of the moving member and for precisely aligning the moving member.

  18. Rotary drive mechanism

    DOE Patents [OSTI]

    Kenderdine, Eugene W. (Albuquerque, NM)

    1991-01-01

    A rotary drive mechanism includes a rotary solenoid having a stator and multi-poled rotor. A moving member rotates with the rotor and is biased by a biasing device. The biasing device causes a further rotational movement after rotation by the rotary solenoid. Thus, energization of the rotary solenoid moves the member in one direction to one position and biases the biasing device against the member. Subsequently, de-energization of the rotary solenoid causes the biasing device to move the member in the same direction to another position from where the moving member is again movable by energization and de-energization of the rotary solenoid. Preferably, the moving member is a multi-lobed cam having the same number of lobes as the rotor has poles. An anti-overdrive device is also preferably provided for preventing overdrive in the forward direction or a reverse rotation of the moving member and for precisely aligning the moving member.

  19. LMS: Lightweight Multicast Services In this chapter we present the major contribution of this thesis, namely Lightweight Multicast

    E-Print Network [OSTI]

    Papadopoulos, Christos

    53 Chapter 4 LMS: Light­weight Multicast Services In this chapter we present the major contribution of this thesis, namely Light­weight Multicast Services. LMS is a set of services provided by routers to greatly of scalable reliable mul­ ticast, we stress that LMS itself is not tied to a specific problem. It is rather

  20. Engineering AnteaterDrive

    E-Print Network [OSTI]

    Markopoulou, Athina

    Rockw ell & M DEA Engineering Tower AnteaterDrive AnteaterDrive East Peltason Drive EastPeltasonDrive East Peltason Drive Anteater Parking Structure EngineeringServiceRoad Engineering Laboratory Facility Engineering Gateway Engineering Hall AIRB Calit2 Engineering Lecture Hall Campus Building Engineering Building

  1. Sutherland/Carlin, Wind Energy 1998, ASME/AIAA AIAA-98-0064 DAMAGE MEASUREMENTS ON THE NWTC DIRECT-DRIVE,

    E-Print Network [OSTI]

    is equipped with a set of composite blades and a direct-coupled, permanent magnet, 20-kW generator-speed mode. In the variable- speed mode, the generator torque is regulated, using a discrete-stepped load, i.e., using the load bank to maintain either generator torque or (optionally) generator power

  2. Materials and Processes for Direct Sun-to-Fuel Chemical Transformations Solar radiation can be used to drive heterogeneous electrochemical reactions at the

    E-Print Network [OSTI]

    Nair, Sankar

    Materials and Processes for Direct Sun-to-Fuel Chemical Transformations Solar radiation can be used and an efficient means for solar radiation delivery and trapping, poses a major challenge to the commercialization, resulting in the production of solar fuels, including hydrogen via water reduction or hydrocarbons (methane

  3. WORKSHOP REPORT:Light-Duty Vehicles Technical Requirements and Gaps for Lightweight and Propulsion Materials

    Office of Energy Efficiency and Renewable Energy (EERE)

    WORKSHOP REPORT:Light-Duty Vehicles Technical Requirements and Gaps for Lightweight and Propulsion Materials

  4. Performance of a New Lightweight Reciprocating Pump

    SciTech Connect (OSTI)

    Whitehead, J C

    2005-06-09

    A new four-chamber piston pump design has been fabricated and tested. The small-scale propellant pump is intended to be powered by gas at elevated temperatures, e.g. in a gas-generator cycle rocket propulsion system. Two key features are combined for the first time: leak-tight liquid-cooled seals, and a high throughput per unit hardware mass. Measured performance curves quantify flows, pressures, leakage, volumetric efficiency, and tank pressure requirements. A pair of 300-gram pumps operating with significant margin could deliver fuel and oxidizer at 5 MPa to a compact lightweight 1000-N engine, while tank pressure remains at 0.35 MPa. Pump weight is well below one percent of thrust, as is typical for launch vehicle engines. Applications include small upper stages, aggressive maneuvers in space, and miniature launch vehicles for Mars ascent.

  5. Lightweight, durable lead-acid batteries

    DOE Patents [OSTI]

    Lara-Curzio, Edgar (Lenoir City, TN); An, Ke (Knoxville, TX); Kiggans, Jr., James O. (Oak Ridge, TN); Dudney, Nancy J. (Knoxville, TN); Contescu, Cristian I. (Knoxville, TN); Baker, Frederick S. (Oak Ridge, TN); Armstrong, Beth L. (Clinton, TN)

    2011-09-13

    A lightweight, durable lead-acid battery is disclosed. Alternative electrode materials and configurations are used to reduce weight, to increase material utilization and to extend service life. The electrode can include a current collector having a buffer layer in contact with the current collector and an electrochemically active material in contact with the buffer layer. In one form, the buffer layer includes a carbide, and the current collector includes carbon fibers having the buffer layer. The buffer layer can include a carbide and/or a noble metal selected from of gold, silver, tantalum, platinum, palladium and rhodium. When the electrode is to be used in a lead-acid battery, the electrochemically active material is selected from metallic lead (for a negative electrode) or lead peroxide (for a positive electrode).

  6. Lightweight, durable lead-acid batteries

    DOE Patents [OSTI]

    Lara-Curzio, Edgar; An, Ke; Kiggans, Jr., James O; Dudney, Nancy J; Contescu, Cristian I; Baker, Frederick S; Armstrong, Beth L

    2013-05-21

    A lightweight, durable lead-acid battery is disclosed. Alternative electrode materials and configurations are used to reduce weight, to increase material utilization and to extend service life. The electrode can include a current collector having a buffer layer in contact with the current collector and an electrochemically active material in contact with the buffer layer. In one form, the buffer layer includes a carbide, and the current collector includes carbon fibers having the buffer layer. The buffer layer can include a carbide and/or a noble metal selected from of gold, silver, tantalum, platinum, palladium and rhodium. When the electrode is to be used in a lead-acid battery, the electrochemically active material is selected from metallic lead (for a negative electrode) or lead peroxide (for a positive electrode).

  7. Integrated modeling for design of lightweight, active mirrors

    E-Print Network [OSTI]

    Cohan, Lucy E.

    Lightweight, active, silicon carbide mirrors have the potential to enable larger primary aperture, space-based optical systems, hence improving the resolution and sensitivity of such systems. However, due to the lack of ...

  8. Illusionist: Transforming Lightweight Cores into Aggressive Cores on Demand

    E-Print Network [OSTI]

    Torrellas, Josep

    Illusionist: Transforming Lightweight Cores into Aggressive Cores on Demand HPCA-19 February 27;Adapting to Application Demands Number of threads to execute is not constant o Many threads available

  9. Improving the Performance of OpenMP Using Lightweight Threads...

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

    Improving the Performance of OpenMP Using Lightweight Threads Event Sponsor: Mathematics and Computing Science Seminar Start Date: Aug 28 2015 - 10:30am BuildingRoom: Building...

  10. Efficient Support for Common Relations in Lightweight Formal Reasoning Systems

    E-Print Network [OSTI]

    House Abstract In work that involves mathematical rigor, there are numerous benefits to adopting a repre a passive principle that consists of loosening restrictions. A system that is lightweight from the user

  11. Measurements of the ablation-front trajectory and low-mode nonuniformity in direct-drive implosions using x-ray self-emission shadowgraphy

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

    Michel, D. T.; Davis, A. K.; Armstrong, W.; Bahr, R.; Epstein, R.; Goncharov, V. N.; Hohenberger, M.; Igumenshchev, I. V.; Jungquist, R.; Meyerhofer, D. D.; et al

    2015-07-08

    Self-emission x-ray shadowgraphy provides a method to measure the ablation-front trajectory and low-mode nonuniformity of a target imploded by directly illuminating a fusion capsule with laser beams. The technique uses time-resolved images of soft x-rays (> 1 keV) emitted from the coronal plasma of the target imaged onto an x-ray framing camera to determine the position of the ablation front. Methods used to accurately measure the ablation-front radius (${\\it\\delta}R=\\pm 1.15~{\\rm\\mu}\\text{m}$), image-to-image timing (${\\it\\delta}({\\rm\\Delta}t)=\\pm 2.5$ ps) and absolute timing (${\\it\\delta}t=\\pm 10$ ps) are presented. Angular averaging of the images provides an average radius measurement ofmore »href='S2095471915000158_inline5' mime-subtype='gif' type='simple'/>${\\it\\delta}(R_{\\text{av}})=\\pm 0.15~{\\rm\\mu}\\text{m}$and an error in velocity of${\\it\\delta}V/V=\\pm 3\\%$. This technique was applied on the Omega Laser Facility and the National Ignition Facility.« less

  12. Centerless-drive solar collector system

    SciTech Connect (OSTI)

    Butler, B. L.

    1985-12-24

    A parabolic-trough solar collector system is disclosed, with each collector driven to track the sun using a ring driven in centerless fashion. The parabolic troughs are made of laminated plywood or molded or formed of plastics or metals. The drive motor moves a flexible belt, i.e., chain or cable, which is routed about the drive ring on each collector. The motion of the cable moves all drive rings together to track the sun. A photodetector senses the position of the sun and provides the signal needed to drive the collectors in the correct direction.

  13. Measurements of the ablation-front trajectory and low-mode nonuniformity in direct-drive implosions using x-ray self-emission shadowgraphy

    SciTech Connect (OSTI)

    Michel, D. T.; Davis, A. K.; Armstrong, W.; Bahr, R.; Epstein, R.; Goncharov, V. N.; Hohenberger, M.; Igumenshchev, I. V.; Jungquist, R.; Meyerhofer, D. D.; Radha, P. B.; Sangster, T. C.; Sorce, C.; Froula, D. H.

    2015-07-08

    Self-emission x-ray shadowgraphy provides a method to measure the ablation-front trajectory and low-mode nonuniformity of a target imploded by directly illuminating a fusion capsule with laser beams. The technique uses time-resolved images of soft x-rays (> 1 keV) emitted from the coronal plasma of the target imaged onto an x-ray framing camera to determine the position of the ablation front. Methods used to accurately measure the ablation-front radius (${\\it\\delta}R=\\pm 1.15~{\\rm\\mu}\\text{m}$), image-to-image timing (${\\it\\delta}({\\rm\\Delta}t)=\\pm 2.5$ ps) and absolute timing (${\\it\\delta}t=\\pm 10$ ps) are presented. Angular averaging of the images provides an average radius measurement of${\\it\\delta}(R_{\\text{av}})=\\pm 0.15~{\\rm\\mu}\\text{m}$and an error in velocity of${\\it\\delta}V/V=\\pm 3\\%$. This technique was applied on the Omega Laser Facility and the National Ignition Facility.

  14. Lightweight, self-ballasting photovoltaic roofing assembly

    DOE Patents [OSTI]

    Dinwoodie, Thomas L.

    2006-02-28

    A photovoltaic roofing assembly comprises a roofing membrane (102), a plurality of photovoltaic modules (104, 106, 108) disposed as a layer on top of the roofing membrane (102), and a plurality of pre-formed spacers, pedestals or supports (112, 114, 116, 118, 120, 122) which are respectively disposed below the plurality of photovoltaic modules (104, 106, 108) and integral therewith, or fixed thereto. Spacers (112, 114, 116, 118, 120, 122) are disposed on top of roofing membrane (102). Membrane (102) is supported on conventional roof framing, and attached thereto by conventional methods. In an alternative embodiment, the roofing assembly may have insulation block (322) below the spacers (314, 314', 315, 315'). The geometry of the pre-formed spacers (112, 114, 116, 118, 120, 122, 314, 314', 315, 315') is such that wind tunnel testing has shown its maximum effectiveness in reducing net forces of wind uplift on the overall assembly. Such construction results in a simple, lightweight, self-ballasting, readily assembled roofing assembly which resists the forces of wind uplift using no roofing penetrations.

  15. Lightweight, self-ballasting photovoltaic roofing assembly

    DOE Patents [OSTI]

    Dinwoodie, T.L.

    1998-05-05

    A photovoltaic roofing assembly comprises a roofing membrane (102), a plurality of photovoltaic modules (104, 106, 108) disposed as a layer on top of the roofing membrane (102), and a plurality of pre-formed spacers, pedestals or supports (112, 114, 116, 118, 120, 122) which are respectively disposed below the plurality of photovoltaic modules (104, 106, 108) and integral therewith, or fixed thereto. Spacers (112, 114, 116, 118, 120, 122) are disposed on top of roofing membrane (102). Membrane (102) is supported on conventional roof framing, and attached thereto by conventional methods. In an alternative embodiment, the roofing assembly may have insulation block (322) below the spacers (314, 314', 315, 315'). The geometry of the preformed spacers (112, 114, 116, 118, 120, 122, 314, 314', 315, 315') is such that wind tunnel testing has shown its maximum effectiveness in reducing net forces of wind uplift on the overall assembly. Such construction results in a simple, lightweight, self-ballasting, readily assembled roofing assembly which resists the forces of wind uplift using no roofing penetrations.

  16. Lightweight, self-ballasting photovoltaic roofing assembly

    DOE Patents [OSTI]

    Dinwoodie, Thomas L. (Berkeley, CA)

    1998-01-01

    A photovoltaic roofing assembly comprises a roofing membrane (102), a plurality of photovoltaic modules (104, 106, 108) disposed as a layer on top of the roofing membrane (102), and a plurality of pre-formed spacers, pedestals or supports (112, 114, 116, 118, 120, 122) which are respectively disposed below the plurality of photovoltaic modules (104, 106, 108) and integral therewith, or fixed thereto. Spacers (112, 114, 116, 118, 120, 122) are disposed on top of roofing membrane (102). Membrane (102) is supported on conventional roof framing, and attached thereto by conventional methods. In an alternative embodiment, the roofing assembly may have insulation block (322) below the spacers (314, 314', 315, 315'). The geometry of the preformed spacers (112, 114, 116, 118, 120, 122, 314, 314', 315, 315') is such that wind tunnel testing has shown its maximum effectiveness in reducing net forces of wind uplift on the overall assembly. Such construction results in a simple, lightweight, self-ballasting, readily assembled roofing assembly which resists the forces of wind uplift using no roofing penetrations.

  17. SW CAMPUS DRIVE SW CAMPUS DRIVE

    E-Print Network [OSTI]

    Chapman, Michael S.

    SW CAMPUS DRIVE SW VETERANS HOSPITAL ROAD SW GAINES ROAD SW 6THAVENUE SW CAMPUS DRIVE SW SAM JACKSON ROAD SW SAM JACKSON ROAD SW SAM J ACKSONROAD SW TERWILLIGER BOULEVARD SW6THAVE SW 11TH AVE SW VETERAN S H O SPITAL ROAD SW TERWILLIGERBLVD SW T ERWILLIGER B LVD SW V ETERANS HOSPITAL ROAD P V V E V V

  18. Vehicle Technologies Office: US DRIVE Materials Technical Team...

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

    vehicle efficiency regardless of the vehicle size or propulsion system employed. This roadmap lays out the future direction for this research. U.S. DRIVE Materials Technical Team...

  19. Multi-Materials Vehicle R&D Initiative Lightweight 7+ Passenger...

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

    Materials Vehicle R&D Initiative Lightweight 7+ Passenger Vehicle Multi-Materials Vehicle R&D Initiative Lightweight 7+ Passenger Vehicle 2011 DOE Hydrogen and Fuel Cells Program,...

  20. Passively cooled direct drive wind turbine

    DOE Patents [OSTI]

    Costin, Daniel P. (Chelsea, VT)

    2008-03-18

    A wind turbine is provided that passively cools an electrical generator. The wind turbine includes a plurality of fins arranged peripherally around a generator house. Each of the fins being oriented at an angle greater than zero degrees to allow parallel flow of air over the fin. The fin is further tapered to allow a constant portion of the fin to extend beyond the air stream boundary layer. Turbulence initiators on the nose cone further enhance heat transfer at the fins.

  1. Light-weight primitive, feather-weight security a cryptanalytic knock-out

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Light-weight primitive, feather-weight security ­ a cryptanalytic knock-out (Preliminary results) V Kingdom page@cs.bris.ac.uk ABSTRACT In [12], the authors present a new light-weight cryptographic systems; D.4.6 [Security and Protection]: Authentication Keywords Light-weight block cipher, structural

  2. Advanced Materials for Lightweight Valve Train Components

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

    reflectionscatter has same polarization as incident; because the polarized detection optics ("object lens") is aligned in the cross-polarized direction relative to the incident,...

  3. Friction Stir Welding of Lightweight Vehicle Structures: Final Report

    SciTech Connect (OSTI)

    Sanella, M L

    2008-08-31

    The purpose of this Cooperative Research and Development Agreement (CRADA) between UTBattelle, LLC and Ford Motor Company was to establish friction stir welding (FSW) and friction stir processing as viable options for use in construction of lightweight substructures for trucks and cars, including engine cradles, suspension sub frames, instrument panel supports, and intake manifolds.

  4. Lightweight and Privacy-Preserving Delegatable Proofs of Storage

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Lightweight and Privacy-Preserving Delegatable Proofs of Storage Jia Xu1 , Anjia Yang1,2 , Jianying of storage (POR or PDP) is a cryptographic tool, which enables data owner or third party auditor to audit integrity of data stored remotely in a cloud storage server, without keeping a local copy of data

  5. FY2010 Annual Progress Report for Lightweighting Materials

    SciTech Connect (OSTI)

    none,

    2011-01-15

    The Lightweight Materials activity (LM) within the Vehicle Technologies Program focuses on the development and validation of advanced materials and manufacturing technologies to significantly reduce light and heavy duty vehicle weight without compromising other attributes such as safety, performance, recyclability, and cost.

  6. Enhancing the Performance of High Availability Lightweight Live Migration

    E-Print Network [OSTI]

    Ravindran, Binoy

    on the primary host, and transfers the latest checkpoint to the backup host as whole-system migration. Once is that the primary host migrates the guest VM image (including CPU/memory status updates and new writes to the fileEnhancing the Performance of High Availability Lightweight Live Migration Peng Lu1, Binoy Ravindran

  7. FY2013 Lightweight Materials R&D Annual Progress Report

    SciTech Connect (OSTI)

    none,

    2014-02-01

    As part of the U.S. Department of Energy’s (DOE’s) Vehicle Technologies Program (VTO), the Lightweight Materials (LM) activity focuses on the development and validation of advanced materials and manufacturing technologies to significantly reduce light and heavy duty vehicle weight without compromising other attributes such as safety, performance, recyclability, and cost.

  8. Lightweight Rainfall Radiometer STAR Aircraft Sensor Christopher Ruf1

    E-Print Network [OSTI]

    Ruf, Christopher

    for high quality rain measurement but is also lightweight and low power, and follows a technology path critical subsystems. At the system level, it will validate the calibration methodology used to produce Level 1 brightness temperature imagery. All electrical, mechanical and thermal subsystems of the LRR

  9. Using Lightweight Theorem Proving in an Asynchronous Systems Context

    E-Print Network [OSTI]

    Xi, Hongwei

    Using Lightweight Theorem Proving in an Asynchronous Systems Context Matthew Danish and Hongwei Xi of the development of a new real-time operating system, an asynchronous communication mechanism, for use between applications, has been implemented in a programming language with an advanced static type system

  10. Lightweight Energy Management of Islanded Operated Microgrids for Prosumer Communities

    E-Print Network [OSTI]

    Rossi, Michele

    Lightweight Energy Management of Islanded Operated Microgrids for Prosumer Communities Riccardo storage devices with the distribution grid. The UI acts as the control master for the microgrid strategy is tested on a residential microgrid model, 100 kVA rated, which has been developed and utilized

  11. A Lightweight Interface to Local Grid Scheduling Christopher Parkera

    E-Print Network [OSTI]

    Giles, C. Lee

    , South Africa, 7701 Abstract Many computationally intensive research problems can be addressed using a Grid architecture. However, Grid use is restricted to those who have an in- depth knowledge of its complex architecture and functionality. To make Grid computing more accessible, a lightweight Web 2

  12. Lightweight Logging for Lazy Release Consistent Distributed Shared Memory

    E-Print Network [OSTI]

    Neves, Nuno

    Lightweight Logging for Lazy Release Consistent Distributed Shared Memory Manuel Costa, Paulo Guedes, Manuel Sequeira, Nuno Neves, Miguel Castro IST - INESC R. Alves Redol 9, 1000 Lisboa PORTUGAL algorithm for a DSM system based on lazy release Manuel Costa, Nuno Neves and Miguel Castro were supported

  13. Abstraction and Implementation of a Lightweight Distributed Termination Protocol

    E-Print Network [OSTI]

    Dobson, Simon

    Abstraction and Implementation of a Lightweight Distributed Termination Protocol D.M. Goodeve , C, University of Leeds, UK Department of Computer Science, Trinity College Dublin, Eire Abstract Termination synchronisation on this state costly. Many parallel applica- tions are structured such that termination occurs

  14. Ground fluidization promotes rapid running of a lightweight robot

    E-Print Network [OSTI]

    Goldman, Daniel I.

    . Goldman1 Abstract We study the locomotor mechanics of a small, lightweight robot (DynaRoACH, 10 cm, 25 g, reflecting a change in propulsion mode. At low frequencies, the robot used a quasi- static "rotary walking was achieved. At high frequencies the robot propelled itself using the speed-dependent fluid-like inertial

  15. ORNL Lightweighting Research Featured on MotorWeek

    SciTech Connect (OSTI)

    2014-04-15

    PBS MotorWeek, television's longest running automotive series, featured ORNL lightweighting research for vehicle applications in an episode that aired in early April 2014. The crew captured footage of research including development of new metal alloys, additive manufacturing, carbon fiber production, advanced batteries, power electronics components, and neutron imaging applications for materials evaluation.

  16. MEng Membrane Lightweight Structures Vienna University of Technology

    E-Print Network [OSTI]

    Arnold, Anton

    and Mock-ups · Building Technology and Climate Design Inspirational Membrane & Experimental DesignMEng Membrane Lightweight Structures CONTINUING EDUCATION CENTER Vienna University of Technology Postgraduate MEng Program Master of Engineering (MEng) 4 semesters, part-time mls.tuwien.ac.at #12;TECHNOLOGY

  17. ORNL Lightweighting Research Featured on MotorWeek

    ScienceCinema (OSTI)

    None

    2014-06-03

    PBS MotorWeek, television's longest running automotive series, featured ORNL lightweighting research for vehicle applications in an episode that aired in early April 2014. The crew captured footage of research including development of new metal alloys, additive manufacturing, carbon fiber production, advanced batteries, power electronics components, and neutron imaging applications for materials evaluation.

  18. Triathlon of Lightweight Block Ciphers for the Internet of Things

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Triathlon of Lightweight Block Ciphers for the Internet of Things Daniel Dinu , Yann Le Corre to the question of how well these ciphers are suited to secure the Internet of Things (IoT). The benchmarking Introduction The Internet of Things (IoT) is a frequently-used term to describe the currently ongoing evolution

  19. Piezoelectric drive circuit

    DOE Patents [OSTI]

    Treu, Jr., Charles A. (Raymore, MO)

    1999-08-31

    A piezoelectric motor drive circuit is provided which utilizes the piezoelectric elements as oscillators and a Meacham half-bridge approach to develop feedback from the motor ground circuit to produce a signal to drive amplifiers to power the motor. The circuit automatically compensates for shifts in harmonic frequency of the piezoelectric elements due to pressure and temperature changes.

  20. Piezoelectric drive circuit

    DOE Patents [OSTI]

    Treu, C.A. Jr.

    1999-08-31

    A piezoelectric motor drive circuit is provided which utilizes the piezoelectric elements as oscillators and a Meacham half-bridge approach to develop feedback from the motor ground circuit to produce a signal to drive amplifiers to power the motor. The circuit automatically compensates for shifts in harmonic frequency of the piezoelectric elements due to pressure and temperature changes. 7 figs.

  1. Tensiometer, drive probe for use with environmental testing equipment, and methods of inserting environmental testing equipment into a sample

    DOE Patents [OSTI]

    Hubbell, Joel M.; Sisson, James B.

    2005-07-26

    A method of inserting a tensiometer into a sample, comprises providing a drive probe configured to be engaged by direct push equipment; supporting a porous member from the drive probe; and driving the drive probe into the sample using a cone penetrometer. A tensiometer comprises a drive probe configured to be engaged by direct push equipment or a cone penetrometer; a porous member supported by the drive probe; and a pressure sensor in pressure sensing relation to the porous member.

  2. Chapter 18: Variable Frequency Drive Evaluation Protocol

    SciTech Connect (OSTI)

    Romberger, J.

    2014-11-01

    An adjustable-speed drive (ASD) includes all devices that vary the speed of a rotating load, including those that vary the motor speed and linkage devices that allow constant motor speed while varying the load speed. The Variable Frequency Drive Evaluation Protocol presented here addresses evaluation issues for variable-frequency drives (VFDs) installed on commercial and industrial motor-driven centrifugal fans and pumps for which torque varies with speed. Constant torque load applications, such as those for positive displacement pumps, are not covered by this protocol. Other ASD devices, such as magnetic drive, eddy current drives, variable belt sheave drives, or direct current motor variable voltage drives, are also not addressed. The VFD is by far the most common type of ASD hardware. With VFD speed control on a centrifugal fan or pump motor, energy use follows the affinity laws, which state that the motor electricity demand is a cubic relationship to speed under ideal conditions. Therefore, if the motor runs at 75% speed, the motor demand will ideally be reduced to 42% of full load power; however, with other losses it is about 49% of full load power.

  3. LMS: Light-weight Multicast Services In this chapter we present the major contribution of this thesis, namely Light-weight Multicast

    E-Print Network [OSTI]

    Papadopoulos, Christos

    53 Chapter 4 LMS: Light-weight Multicast Services In this chapter we present the major contribution of this thesis, namely Light-weight Multicast Services. LMS is a set of services provided by routers to greatly simplify the solutions to basic mul- ticast transport problems. Even though LMS was motivated

  4. Does Doctrine Drive Technology or Does Technology Drive Doctrine?

    E-Print Network [OSTI]

    Blasko, Dennis

    2010-01-01

    Policy Brief No. 4 September 2010 Does Doctrine DriveTechnology or Does Technology Drive Doctrine? Dennis Blaskoone way. However, technology does not determine strat- egy.

  5. US DRIVE Driving Research and Innovation for Vehicle Efficiency...

    Office of Environmental Management (EM)

    Documents & Publications US DRIVE Fuel Pathway Integration Technical Team Roadmap Hydrogen Program Goal-Setting Methodologies Report to Congress US DRIVE Hydrogen Production...

  6. Does Doctrine Drive Technology or Does Technology Drive Doctrine?

    E-Print Network [OSTI]

    Blasko, Dennis

    2010-01-01

    Brief No. 4 September 2010 Does Doctrine Drive Technology orDoes Technology Drive Doctrine? Dennis Blasko Summary Wthat emphasizes strategy over technology and may hold some

  7. Bond Strength of Polymer Lightweight Aggregate Tayfun Uygunoglu,1

    E-Print Network [OSTI]

    North Texas, University of

    of 0, 0.5, and 1%. After lightweight PC mixture was prepared, it was poured in the molds with different type of steel-bars in size of 100 3 100 3 100 mm3 . The steel-bars centered in the cubic molds­polymer composites [12]. In general Correspondence to: Tayfun Uygunoglu; e-mail: uygunoglu@aku.edu.tr Contract grant

  8. Composition of carcasses and retail cuts from lightweight heifers 

    E-Print Network [OSTI]

    Guzman Mirabal, Luis Alejandro

    1986-01-01

    of the Journal of Animal Science. possibility for marketing beef using private branding. This system allows the packer to characterize a particular type of carcass, primal cut or retail cut, and to obtain permission to use the label "lean" on the product...COMPOSITION OF CARCASSES AND RETAIL CUTS FROM LIGHTWEIGHT HEIFERS A Thesis by LUIS ALEJANDRO GUZMAN MIRABAL Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER...

  9. Lightweight armor system and process for producing the same

    DOE Patents [OSTI]

    Chu, Henry S.; Bruck, H. Alan; Strempek, Gary C.; Varacalle, Jr., Dominic J.

    2004-01-20

    A lightweight armor system may comprise a substrate having a graded metal matrix composite layer formed thereon by thermal spray deposition. The graded metal matrix composite layer comprises an increasing volume fraction of ceramic particles imbedded in a decreasing volume fraction of a metal matrix as a function of a thickness of the graded metal matrix composite layer. A ceramic impact layer is affixed to the graded metal matrix composite layer.

  10. Energy Savings Opportunity in Manufacturing Lightweight Strcutural Materials 

    E-Print Network [OSTI]

    Brueske, S.

    2015-01-01

    and Potential Energy Saving Opportunities in Manufacturing Lightweight Structural Materials Presenting: Sabine Brueske, Energetics Incorporated Concept Presentation of Draft Findings, June 4, 2015 ESL-IE-15-06-21 Proceedings of the Thrity...-Seventh Industrial Energy Technology Conference New Orleans, LA. June 2-4, 2015 Slide 2/36 1. Project Overview 2. Review of Measures Studies 3. Summary of DRAFT Results 4. Next step… Integrating Analysis Presentation Outline ESL-IE-15-06-21 Proceedings...

  11. Ride and Drive Webinar

    Broader source: Energy.gov [DOE]

    Listen to this webinar and follow along using the slides below to learn how on-site plug-in electric vehicle (PEV) Ride and Drives can create value for your organization, your employees, and your...

  12. Vehicle Technologies Office: 2014 Lightweight Materials R&D Annual Progress Report

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Lightweight Materials research and development (R&D) area within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies under development. Research focuses on addressing critical barriers to commercializing lightweight materials for passenger and commercial vehicles. This report describes the progress made on the research and development projects funded by the Lightweight Materials area. Past years' reports are listed on the Annual Progress Reports page.

  13. FY 2009 Progress Report for Lightweighting Materials- 12. Materials Crosscutting Research and Development

    Broader source: Energy.gov [DOE]

    The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction in total vehicle weight while maintaining safety, performance, and reliability.

  14. FY 2009 Progress Report for Lightweighting Materials- 7. Low-Cost Carbon Fiber

    Office of Energy Efficiency and Renewable Energy (EERE)

    The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction in total vehicle weight while maintaining safety, performance, and reliability.

  15. FY 2008 Progress Report for Lightweighting Materials- Appendix A. Acronyms and Abbreviations

    Office of Energy Efficiency and Renewable Energy (EERE)

    Lightweighting Materials focuses on the development and validation of advanced materials and manufacturing technologies to reduce automobile weight without compromising other attributes.

  16. FY 2009 Progress Report for Lightweighting Materials- 6. Automotive Metals- Crosscutting

    Office of Energy Efficiency and Renewable Energy (EERE)

    The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction in total vehicle weight while maintaining safety, performance, and reliability.

  17. FY 2009 Progress Report for Lightweighting Materials- A. Acronyms and Abbreviations

    Office of Energy Efficiency and Renewable Energy (EERE)

    The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction in total vehicle weight while maintaining safety, performance, and reliability.

  18. FY 2008 Progress Report for Lightweighting Materials- 2. Automotive Metals-Wrought

    Office of Energy Efficiency and Renewable Energy (EERE)

    Lightweighting Materials focuses on the development and validation of advanced materials and manufacturing technologies to reduce automobile weight without compromising other attributes.

  19. FY 2009 Progress Report for Lightweighting Materials- 3. Automotive Metals- Cast

    Office of Energy Efficiency and Renewable Energy (EERE)

    The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction in total vehicle weight while maintaining safety, performance, and reliability.

  20. FY 2009 Progress Report for Lightweighting Materials- 2. Automotive Metals- Wrought

    Office of Energy Efficiency and Renewable Energy (EERE)

    The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction in total vehicle weight while maintaining safety, performance, and reliability.

  1. A Key Recovery Attack on Error Correcting Code Based a Lightweight Security Protocol

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    become prevalent in various fields. Manufacturing, supply chain management and inventory control are some--Authentication, error correcting coding, lightweight, privacy, RFID, security ! 1 INTRODUCTION RFID technology has

  2. FY 2008 Progress Report for Lightweighting Materials- 7. Low-Cost Carbon Fiber

    Office of Energy Efficiency and Renewable Energy (EERE)

    Lightweighting Materials focuses on the development and validation of advanced materials and manufacturing technologies to reduce automobile weight without compromising other attributes.

  3. FY 2008 Progress Report for Lightweighting Materials- 12. Materials Crosscutting Research and Development

    Office of Energy Efficiency and Renewable Energy (EERE)

    Lightweighting Materials focuses on the development and validation of advanced materials and manufacturing technologies to reduce automobile weight without compromising other attributes.

  4. Overview of LightweightingMaterials: Past, Present and FutureMaterials

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

    diesel-electric hybrids), advanced design and lightweighting (40%), probably spurred automotive technology worldwide, and provided model for government-industry cooperation....

  5. FY 2009 Progress Report for Lightweighting Materials- 8. Polymer Composites Research and Development

    Office of Energy Efficiency and Renewable Energy (EERE)

    The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction in total vehicle weight while maintaining safety, performance, and reliability.

  6. FY 2008 Progress Report for Lightweighting Materials- 6. Automotive Metals-Crosscutting

    Office of Energy Efficiency and Renewable Energy (EERE)

    Lightweighting Materials focuses on the development and validation of advanced materials and manufacturing technologies to reduce automobile weight without compromising other attributes.

  7. FY 2008 Progress Report for Lightweighting Materials- 8. Polymer Composites Research and Development

    Office of Energy Efficiency and Renewable Energy (EERE)

    Lightweighting Materials focuses on the development and validation of advanced materials and manufacturing technologies to reduce automobile weight without compromising other attributes.

  8. FY 2008 Progress Report for Lightweighting Materials- 3. Automotive Metals-Cast

    Office of Energy Efficiency and Renewable Energy (EERE)

    Lightweighting Materials focuses on the development and validation of advanced materials and manufacturing technologies to reduce automobile weight without compromising other attributes.

  9. FY 2009 Progress Report for Lightweighting Materials- 4. Automotive Metals- Titanium

    Broader source: Energy.gov [DOE]

    The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction in total vehicle weight while maintaining safety, performance, and reliability.

  10. FY 2008 Progress Report for Lightweighting Materials- 4. Automotive Metals-Titanium

    Office of Energy Efficiency and Renewable Energy (EERE)

    Lightweighting Materials focuses on the development and validation of advanced materials and manufacturing technologies to reduce automobile weight without compromising other attributes.

  11. FY 2009 Progress Report for Lightweighting Materials- disclaimer and back cover

    Broader source: Energy.gov [DOE]

    The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction in total vehicle weight while maintaining safety, performance, and reliability.

  12. Vehicle Technologies Office: 2013 Lightweight Materials R&D Annual Progress Report

    Office of Energy Efficiency and Renewable Energy (EERE)

    This report describes the progress made on the research and development projects funded by the Lightweight Materials subprogram in the Vehicle Technologies Office.

  13. FY 2008 Progress Report for Lightweighting Materials- 5. Automotive Metals-Steel

    Broader source: Energy.gov [DOE]

    Lightweighting Materials focuses on the development and validation of advanced materials and manufacturing technologies to reduce automobile weight without compromising other attributes.

  14. FY 2009 Progress Report for Lightweighting Materials- 5. Automotive Metals- Steel

    Broader source: Energy.gov [DOE]

    The primary Lightweight Materials activity goal is to validate a cost-effective weight reduction in total vehicle weight while maintaining safety, performance, and reliability.

  15. Electric-Drive Vehicle engineering

    E-Print Network [OSTI]

    Berdichevsky, Victor

    Electric-Drive Vehicle engineering COLLEGE of ENGINEERING Electric-driveVehicle engineers for 80 years t Home to nation's first electric-drive vehicle engineering program and alternative-credit EDGE Engineering Entrepreneur Certificate Program is a great addition to an electric-drive vehicle

  16. U.S. DRIVE

    SciTech Connect (OSTI)

    2012-03-16

    U.S. DRIVE, which stands for United States Driving Research and Innovation for Vehicle efficiency and Energy sustainability, is an expanded government-industry partnership among the U.S. Department of Energy; USCAR, representing Chrysler Group LLC, Ford Motor Company and General Motors; Tesla Motors; five energy companies – BP America, Chevron Corporation, ConocoPhillips, ExxonMobil Corporation, and Shell Oil Products US; two utilities – Southern California Edison and Michigan-based DTE Energy; and the Electric Power Research Institute (EPRI). The U.S. DRIVE mission is to accelerate the development of pre-competitive and innovative technologies to enable a full range of affordable and clean advanced light-duty vehicles, as well as related energy infrastructure.

  17. Ceramic vane drive joint

    DOE Patents [OSTI]

    Smale, Charles H. (Indianapolis, IN)

    1981-01-01

    A variable geometry gas turbine has an array of ceramic composition vanes positioned by an actuating ring coupled through a plurality of circumferentially spaced turbine vane levers to the outer end of a metallic vane drive shaft at each of the ceramic vanes. Each of the ceramic vanes has an end slot of bow tie configuration including flared end segments and a center slot therebetween. Each of the vane drive shafts has a cross head with ends thereof spaced with respect to the sides of the end slot to define clearance for free expansion of the cross head with respect to the vane and the cross head being configured to uniformly distribute drive loads across bearing surfaces of the vane slot.

  18. Holiday Food Drive

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenry Bellamy, Ph.D.Food Drive Holiday Food Drive Laboratory employees

  19. Holiday Gift Drive

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenry Bellamy, Ph.D.Food Drive Holiday Food Drive Laboratory

  20. Solar receiver heliostat reflector having a linear drive and position information system

    DOE Patents [OSTI]

    Horton, Richard H. (Schenectady, NY)

    1980-01-01

    A heliostat for a solar receiver system comprises an improved drive and control system for the heliostat reflector assembly. The heliostat reflector assembly is controllably driven in a predetermined way by a light-weight drive system so as to be angularly adjustable in both elevation and azimuth to track the sun and efficiently continuously reflect the sun's rays to a focal zone, i.e., heat receiver, which forms part of a solar energy utilization system, such as a solar energy fueled electrical power generation system. The improved drive system includes linear stepping motors which comprise low weight, low cost, electronic pulse driven components. One embodiment comprises linear stepping motors controlled by a programmed, electronic microprocessor. Another embodiment comprises a tape driven system controlled by a position control magnetic tape.

  1. Lightweight cryogenic-compatible pressure vessels for vehicular fuel storage

    DOE Patents [OSTI]

    Aceves, Salvador; Berry, Gene; Weisberg, Andrew H.

    2004-03-23

    A lightweight, cryogenic-compatible pressure vessel for flexibly storing cryogenic liquid fuels or compressed gas fuels at cryogenic or ambient temperatures. The pressure vessel has an inner pressure container enclosing a fuel storage volume, an outer container surrounding the inner pressure container to form an evacuated space therebetween, and a thermal insulator surrounding the inner pressure container in the evacuated space to inhibit heat transfer. Additionally, vacuum loss from fuel permeation is substantially inhibited in the evacuated space by, for example, lining the container liner with a layer of fuel-impermeable material, capturing the permeated fuel in the evacuated space, or purging the permeated fuel from the evacuated space.

  2. BOOKSHELF Hard Disk Drive

    E-Print Network [OSTI]

    Benmei, Chen

    » BOOKSHELF Hard Disk Drive Servo Systems, 2nd edition by B.M. CHEN, T.H. LEE, K. PENG, and V at Seagate Research working on spinstand microactuator integration, and I continued to work at Sea- gate part 15% of track pitch 3 , leads to fundamental challenges in position detection, while pushing band

  3. Electrical motor/generator drive apparatus and method

    DOE Patents [OSTI]

    Su, Gui Jia

    2013-02-12

    The present disclosure includes electrical motor/generator drive systems and methods that significantly reduce inverter direct-current (DC) bus ripple currents and thus the volume and cost of a capacitor. The drive methodology is based on a segmented drive system that does not add switches or passive components but involves reconfiguring inverter switches and motor stator winding connections in a way that allows the formation of multiple, independent drive units and the use of simple alternated switching and optimized Pulse Width Modulation (PWM) schemes to eliminate or significantly reduce the capacitor ripple current.

  4. Waste Heat Recovery System: Lightweight Thermal Energy Recovery (LIGHTER) System

    SciTech Connect (OSTI)

    2010-01-01

    Broad Funding Opportunity Announcement Project: GM is using shape memory alloys that require as little as a 10°C temperature difference to convert low-grade waste heat into mechanical energy. When a stretched wire made of shape memory alloy is heated, it shrinks back to its pre-stretched length. When the wire cools back down, it becomes more pliable and can revert to its original stretched shape. This expansion and contraction can be used directly as mechanical energy output or used to drive an electric generator. Shape memory alloy heat engines have been around for decades, but the few devices that engineers have built were too complex, required fluid baths, and had insufficient cycle life for practical use. GM is working to create a prototype that is practical for commercial applications and capable of operating with either air- or fluid-based heat sources. GM’s shape memory alloy based heat engine is also designed for use in a variety of non-vehicle applications. For example, it can be used to harvest non-vehicle heat sources, such as domestic and industrial waste heat and natural geothermal heat, and in HVAC systems and generators.

  5. Structural design and analysis of a lightweight composite sandwich space radiator panel 

    E-Print Network [OSTI]

    Mukundan, Sudharsan

    2005-02-17

    The goal of this study is to design and analyze a sandwich composite panel with lightweight graphite foam core and carbon epoxy face sheets that can function as a radiator for the given payload in a satellite. This arrangement provides a lightweight...

  6. A Lightweight Framework for Source-to-Sink Data Transfer in Wireless Sensor Networks

    E-Print Network [OSTI]

    Krishnamurthy, Srikanth

    -- Lightweight protocols that are both bandwidth and power thrifty are desirable for sensor networks. In additionA Lightweight Framework for Source-to-Sink Data Transfer in Wireless Sensor Networks J. Jobin, for many sensor network applications, timeliness of data delivery at a sink that collects and interprets

  7. Attacks on a Lightweight Cipher Based on a Multiple Recursive Generator

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Attacks on a Lightweight Cipher Based on a Multiple Recursive Generator Lu Xiao and Gregory G. Rose Abstract At IEEE GLOBECOM 2008, a lightweight cipher based on a Multiple Recursive Generator (MRG plaintext attack is proposed to construct the cipher's current state and generate subkeys used for all

  8. Attacks on a Lightweight Cipher Based on a Multiple Recursive Generator

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Attacks on a Lightweight Cipher Based on a Multiple Recursive Generator Lu Xiao and Gregory G. Rose Abstract At IEEE GLOBECOM 2008, a lightweight cipher based on a Multiple Recursive Generator (MRG attack is proposed to construct the cipher's current state and generate subkeys used for all subsequent

  9. Impossible Differential Cryptanalysis of the Lightweight Block Ciphers TEA, XTEA and

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Impossible Differential Cryptanalysis of the Lightweight Block Ciphers TEA, XTEA and HIGHT Jiazhe mqwang@sdu.edu.cn Abstract. TEA, XTEA and HIGHT are lightweight block ciphers with 64-bit block sizes, modular addition and shift/rotation. TEA and XTEA are Feistel ciphers with 64 rounds de- signed by Needham

  10. Using lightweight unmanned aerial vehicles to monitor tropical forest Rakan A. Zahawi a,

    E-Print Network [OSTI]

    Ellis, Erle C.

    Using lightweight unmanned aerial vehicles to monitor tropical forest recovery Rakan A. Zahawi a from lightweight unmanned aerial vehicles (UAV) are a cost-effective substitute for tradi- tional field Rica. Ecosynth methods combine aerial images from consumer-grade digital cameras with com- puter vision

  11. WORKSHOP REPORT: Trucks and Heavy-Duty Vehicles Technical Requirements and Gaps for Lightweight and Propulsion Materials

    Office of Energy Efficiency and Renewable Energy (EERE)

    WORKSHOP REPORT: Trucks and Heavy-Duty Vehicles Technical Requirements and Gaps for Lightweight and Propulsion Materials

  12. Lightweight photovoltaic module development for unmanned aerial vehicles

    SciTech Connect (OSTI)

    Nowlan, M.J.; Maglitta, J.C.; Lamp, T.R.

    1998-07-01

    Lightweight photovoltaic modules are being developed for powering high altitude unmanned aerial vehicles (UAVs). Terrestrial crystalline silicon solar cell and module technologies are being applied to minimize module cost, with modifications to improve module specific power (W/kg) and power density (W/m{sup 2}). New module processes are being developed for assembling standard thickness (320 mm) and thin (125 mm) solar cells, thin (50 to 100 mm) encapsulant films, and thin (25 mm) cover films. In comparison, typical terrestrial modules use 300 to 400 mm thick solar cells, 460 mm thick encapsulants, and 3.2 mm thick glass covers. The use of thin, lightweight materials allows the fabrication of modules with specific powers ranging from 120 to 200 W/kg, depending on cell thickness and efficiency, compared to 15 W/kg or less for conventional terrestrial modules. High efficiency designs based on ultra-thin (5 mm) GaAs cells have also been developed, with the potential for achieving substantially higher specific powers. Initial design, development, and module assembly work is completed. Prototype modules were fabricated in sizes up to 45 cm x 99 cm. Module materials and processes are being evaluated through accelerated environmental testing, including thermal cycling, humidity-freeze cycling, mechanical cycling, and exposure to UV and visible light.

  13. Development of a Novel Bi-Directional Isolated Multiple-Input DC-DC Converter

    SciTech Connect (OSTI)

    Li, H.

    2005-10-24

    There is vital need for a compact, lightweight, and efficient energy-storage system that is both affordable and has an acceptable cycle life for the large-scale production of electric vehicles (EVs) and hybrid electric vehicles (HEVs). Most of the current research employs a battery-storage unit (BU) combined with a fuel cell (FC) stack in order to achieve the operating voltage-current point of maximum efficiency for the FC system. A system block diagram is shown in Fig.1.1. In such a conventional arrangement, the battery is sized to deliver the difference between the energy required by the traction drive and the energy supplied by the FC system. Energy requirements can increase depending on the drive cycle over which the vehicle is expected to operate. Peak-power transients result in an increase of losses and elevated temperatures which result in a decrease in the lifetime of the battery. This research will propose a novel two-input direct current (dc) dc to dc converter to interface an additional energy-storage element, an ultracapacitor (UC), which is shown in Fig.1.2. It will assist the battery during transients to reduce the peak-power requirements of the battery.

  14. Variable Frequency Pump Drives 

    E-Print Network [OSTI]

    Karassik, I. J.; Petraccaro, L. L.; McGuire, J. T.

    1986-01-01

    variable flow operation, Fig. 2 variable system head, the objective of the latter being to maintain pump flow within an optimum range while accommodating a wide variation in system head. VARYING OPERATING CAPACITY OPERATING CAPACITY? N, RANGE HEAD...-rotor motors and variable speed devices have slip losses that significantly reduce the savings that accrue by operating pumps at variable speed. Steam turbine drives may not always be the most practical or economic solution. The variable frequency...

  15. Lightweight diaphragm mirror module system for solar collectors

    DOE Patents [OSTI]

    Butler, B.L.

    1984-01-01

    A mirror module system is provided for accurately focusing solar radiation on a point or a line as defined by an array of solar collectors. Each mirror module includes a flexible membrane stretched over a frame in a manner similar to that of a drum or a trampoline and further includes a silvered glass or plastic mirror for forming an optical reflecting surface. The configuration of the optical reflecting surface is variably adjustable to provide for the accurate focusing of the solar energy on a given collector array, e.g., a point or a linear array arrangement. The flexible mirror-membrane combination is lightweight to facilitate installation and reduce system cost yet structurally strong enough to provide for the precise focusing of the incident solar radiation in a semi-rigid reflector system in which unwanted reflector displacement is minimized.

  16. Lightweight performance data collectors 2.0 with Eiger support.

    SciTech Connect (OSTI)

    Allan, Benjamin A.

    2013-05-01

    We report on the use and design of a portable, extensible performance data collection tool motivated by modeling needs of the high performance computing systems co-design com- munity. The lightweight performance data collectors with Eiger support is intended to be a tailorable tool, not a shrink-wrapped library product, as pro ling needs vary widely. A single code markup scheme is reported which, based on compilation ags, can send perfor- mance data from parallel applications to CSV les, to an Eiger mysql database, or (in a non-database environment) to at les for later merging and loading on a host with mysql available. The tool supports C, C++, and Fortran applications.

  17. HepForge: A lightweight development environment for HEP software

    E-Print Network [OSTI]

    A. Buckley; J. M. Butterworth; E. Nurse; W. J. Stirling; B. Waugh; M. R. Whalley

    2006-05-04

    Setting up the infrastructure to manage a software project can become a task as significant writing the software itself. A variety of useful open source tools are available, such as Web-based viewers for version control systems, "wikis" for collaborative discussions and bug-tracking systems, but their use in high-energy physics, outside large collaborations, is insubstantial. Understandably, physicists would rather do physics than configure project management tools. We introduce the CEDAR HepForge system, which provides a lightweight development environment for HEP software. Services available as part of HepForge include the above-mentioned tools as well as mailing lists, shell accounts, archiving of releases and low-maintenance Web space. HepForge also exists to promote best-practice software development methods and to provide a central repository for re-usable HEP software and phenomenology codes.

  18. Lightweight diaphragm mirror module system for solar collectors

    DOE Patents [OSTI]

    Butler, Barry L. (Golden, CO)

    1985-01-01

    A mirror module system is provided for accurately focusing solar radiation on a point or a line as defined by an array of solar collectors. Each mirror module includes a flexible membrane stretched over a frame in a manner similar to that of a drum or a trampoline and further includes a silvered glass or plastic mirror for forming an optical reflecting surface. The configuration of the optical reflecting surface is variably adjustable to provide for the accurate focusing of the solar energy on a given collector array, e.g., a point or a linear array arrangement. The flexible mirror-membrane combination is lightweight to facilitate installation and reduce system cost yet structurally strong enough to provide for the precise focusing of the incident solar radiation in a semi-rigid reflector system in which unwanted reflector displacement is minimized.

  19. Driving Innovation through Federal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i Framing DocumentUnits at Eight-<DominionAVOLUMEULP PEISSavingsDriving

  20. Marketing & Driving Demand Collaborative - Social Media Tools...

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

    & Driving Demand Collaborative - Social Media Tools & Strategies Marketing & Driving Demand Collaborative - Social Media Tools & Strategies Presentation slides from the Better...

  1. Next Generation Environmentally Friendly Driving Feedback Systems...

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

    Environmentally Friendly Driving Feedback Systems Research and Development Next Generation Environmentally Friendly Driving Feedback Systems Research and Development 2012 DOE...

  2. ALITER: An Asynchronous Lightweight Instrumentation Tool for Event Xiaofeng Gao, Beth Simon, Allan Snavely

    E-Print Network [OSTI]

    Snavely, Allan

    generally available instrumentation tools. 1 Introduction Tools for acquiring dynamic execution events [10 into the instrumented code causes overhead. And because commonly available binary in- strumentation toolsALITER: An Asynchronous Lightweight Instrumentation Tool for Event Recording Xiaofeng Gao, Beth

  3. Vehicle Technologies Office Merit Review 2014: Multi-Material Lightweight Vehicles: Mach II Design

    Broader source: Energy.gov [DOE]

    Presentation given by VEHMA at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about multi-material lightweight vehicles:...

  4. Vehicle Technologies Office Merit Review 2014: Multi-Material Lightweight Vehicles

    Broader source: Energy.gov [DOE]

    Presentation given by VEHMA at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about multi-material lightweight vehicles.

  5. A Lightweight Java Taskspaces Framework for Scientific Computing on Computational Grids

    E-Print Network [OSTI]

    De Sterck, Hans

    A Lightweight Java Taskspaces Framework for Scientific Computing on Computational Grids Appeared orientation and platform independence realized by implementation in Java. Grid administration tasks, Intertask Communication, Scalability, Java 1. INTRODUCTION Distributed computing on heterogeneous

  6. The influence of fuel price on an automaker's decision to lightweight cars via materials substitution

    E-Print Network [OSTI]

    Feng, Jennifer C

    2009-01-01

    The following study examines how the costs and benefits of improving fuel economy of vehicles via lightweighting with aluminum closures change with gas price. A process-based cost model is used to evaluate the costs of ...

  7. Assessment of the thermal efficiency, structure and fire resistance of lightweight building systems for optimized design 

    E-Print Network [OSTI]

    Amundarain, Aitor

    The use of lightweight building systems is very controversial as existing knowledge about their performance is limited. Not enough research has been conducted to determine the suitability of these modern construction ...

  8. Design of a compact, lightweight, and low-cost solar concentrator

    E-Print Network [OSTI]

    González, Gabriel J. (Gabriel Joe), 1980-

    2004-01-01

    The objective of this mechanical design project was to improve the current design of large and heavy solar concentrators. The three main design goals were: making the system compact, making the system lightweight, and ...

  9. Vehicle Technologies Office Merit Review 2015: Multi-Material Lightweight Vehicles

    Broader source: Energy.gov [DOE]

    Presentation given by VEHMA at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about multi-material lightweight vehicles.

  10. Integrated modeling and design of lightweight, active mirrors for launch survival and on-orbit performance

    E-Print Network [OSTI]

    Cohan, Lucy Elizabeth

    2010-01-01

    Lightweight, active mirrors are an enabling technology for large aperture, space-based optical systems. These mirrors have the potential to improve the optical resolution and sensitivity beyond what is currently possible. ...

  11. Vehicle Technologies Office: 2010 Lightweight Materials R&D Annual Progress Report

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Lightweight Materials activity (LM) focuses on the development and validation of advanced materials and manufacturing technologies to significantly reduce light and heavy duty vehicle weight without compromising other attributes such as safety, performance,recyclability, and cost.

  12. The impact of mass decompounding on assessing the value of vehicle lightweighting

    E-Print Network [OSTI]

    Bjelkengren, Catarina

    2008-01-01

    Among consumers and manufacturers alike, there is an increasing realization about the need for fuel efficient vehicles. One effective way to accomplish this is through vehicle lightweighting, which can be achieved by ...

  13. UFilter: A Lightweight XML View Update Checker Ling Wang, Elke A. Rundensteiner and Murali Mani

    E-Print Network [OSTI]

    U­Filter: A Lightweight XML View Update Checker Ling Wang, Elke A. Rundensteiner and Murali Mani 1997 year Simon & Schuster Inc. A02 Prentice­Hall Inc. B01 McGraw­Hill

  14. E#cient Support for Common Relations in Lightweight Formal Reasoning Systems

    E-Print Network [OSTI]

    House Abstract In work that involves mathematical rigor, there are numerous benefits to adopting a repre a passive principle that consists of loosening restrictions. A system that is lightweight from the user

  15. Design of a lightweight camping cot using carbon fiber tent poles and ripstop nylon

    E-Print Network [OSTI]

    Ward, Walton (Walton Henry)

    2006-01-01

    A lightweight camping cot is currently unavailable in the backpacking market. Although camping cots do exist, they are not competitive in weight and size with sleeping pads typically used by campers. On average, sleeping ...

  16. Test Driving the Toyota Mirai

    Broader source: Energy.gov [DOE]

    Watch a video of Energy Secretary Ernest Moniz test driving the Toyota Mirai, the first fuel cell electric vehicle available for sale.

  17. Optomechanical Entanglement under Pulse Drive

    E-Print Network [OSTI]

    Qing Lin; Bing He

    2015-08-12

    We report a study of optomechanical entanglement under the drive of one or a series of laser pulses with arbitrary detuning and different pulse shapes. Because of the non-existence of system steady state under pulsed driving field, we adopt a different approach from the standard treatment to optomechanical entanglement. The situation of the entanglement evolution in high temperature is also discussed.

  18. Driving Safely In Smart Cars

    E-Print Network [OSTI]

    Puri, Anuj; Varaiya, Pravin

    1995-01-01

    Control of the Lead Car of a Platoon. IEEE Transactions on1993. Var93 P.Varaiya. Smart Cars on Smart Roads: ProblemsDriving Safely in Smart Cars Anuj Puri, Pravin Varaiya

  19. Upgrading coal plant damper drives

    SciTech Connect (OSTI)

    Hood, N.R.; Simmons, K. [Alamaba Power (United States)

    2009-11-15

    The replacement of damper drives on two coal-fired units at the James H. Miller Jr. electric generating plant by Intelligent Contrac electric rotary actuators is discussed. 2 figs.

  20. Adjustable Speed Drive Industrial Applications 

    E-Print Network [OSTI]

    Poole, J. N.

    1989-01-01

    Electric motors are significant users of electricity in the United States. Approximately 66 percent of the total electricity in the U.S. is used by electric motors. Electronic adjustable speed drives (ASDs) can save energy, lower maintenance cost...

  1. LNG: new driving force

    SciTech Connect (OSTI)

    Adkins, R.E.

    1981-11-01

    Spurred by recent legislation promoting the use of methane as a motor fuel, Beech Aircraft is gearing up for market production of a complete vehicular conversion kit and ground support equipment for a liquefied-methane fuel system that is suitable for the use of conventional LNG or methane collected from coalbeds, sewage plants, or landfills and liquefied on site. As demonstrated in field tests of prototype fuel systems, liquefied methane stores conveniently and is safe in motor vehicles. Compared with compressed methane, the liquefied form provides more horsepower and longer mileage between fuelings. Fully fueled, the Beech system weighs less than a gasoline or diesel tank of the same size. The system features electronic-capacitance gaging for direct dashboard quantity reading, a standby time of 14 days (from filling time until the time it reaches the maximum allowable vapor pressure of 60 psi), and the choice of vapor or liquid withdrawal.

  2. Vehicle Technologies Office: 2014 Electric Drive Technologies...

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

    Vehicle Technologies Office: 2014 Electric Drive Technologies Annual Progress Report Vehicle Technologies Office: 2014 Electric Drive Technologies Annual Progress Report The...

  3. QER - Comment of Electric Drive Transportation Association |...

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

    Drive Transportation Association QER - Comment of Electric Drive Transportation Association From: Genevieve Cullen gcullen@electricdrive.org Sent: Friday, October 10, 2014 11:58...

  4. Grand Challenge Portfolio: Driving Innovations in Industrial...

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

    Grand Challenge Portfolio: Driving Innovations in Industrial Energy Efficiency, January 2011 Grand Challenge Portfolio: Driving Innovations in Industrial Energy Efficiency, January...

  5. Heavyweight Applications of Lightweight User Models UM 2001 Invited Talk Copyright 2001 Joseph A. Konstan July 16, 2001

    E-Print Network [OSTI]

    Minnesota, University of

    Heavyweight Applications of Lightweight User Models UM 2001 Invited Talk Copyright 2001 Joseph A. Konstan July 16, 2001 UM 2001 1 Heavyweight Applications of Lightweight User Models Collaborative@cs.umn.edu http://www.grouplens.org UM 2001 2 Where We're Going · So much with so little ­ the power

  6. Fuzzy logic control implementation in sensorless PM drive systems

    E-Print Network [OSTI]

    , Egypt Abstract The PM motor drive systems are becoming particularly popular in many industrial power switches are controlled directly from the rotor position sensor. An open-loop configuration is essential for controlling the power devices of the inverter. The main problem with present rotor position

  7. Hydrodynamics and drive-train dynamics of a direct-drive floating wind turbine 

    E-Print Network [OSTI]

    Sethuraman, Latha

    2014-06-30

    Floating wind turbines (FWTs) are considered a new lease of opportunity for sustaining growth from offshore wind energy. In recent years, several new concepts have emerged, with only a few making it to demonstration or ...

  8. The Direct Wave-Drive Thruster Matthew S. Feldman

    E-Print Network [OSTI]

    A Magnetic Vector Potential T Thrust m Mass Flow Rate P Power Complex Frequency Dependent Plasma concepts have used various waves to heat a plasma and obtain thrust via expansion through a magnetic nozzle operating at 5kW with a mass flow rate of 1 mg/s and found that for typical plasma parameters, the maximum

  9. Homodyne target tracking for direct drive laser inertial fusion

    E-Print Network [OSTI]

    Spalding, Jon David

    2009-01-01

    thermonuclear burn. This implosion is repeated several times per second within a chamber that recovers excess energy

  10. Pathways to Inertial Fusion Energy Laser Direct Drive

    E-Print Network [OSTI]

    * 2 focal diameter zooms during implosion #12;Simulations predict enough gain for a power plant (90,000 shots) Gas recirculator Pulsed power Laser gas cell #12;Electra diode provides >75% E- beam transmission into laser gas Compact 200 kV, 4.5 kA Solid State Pulse Generator Integra

  11. Direct Drive Wave Energy Buoy – 33rd scale experiment

    SciTech Connect (OSTI)

    Rhinefrank, Kenneth E.; Lenee-Bluhm, Pukha; Prudell, Joseph H.; Schacher, Alphonse A.; Hammagren, Erik J.; Zhang, Zhe

    2013-07-29

    Columbia Power Technologies (ColPwr) and Oregon State University (OSU) jointly conducted a series of tests in the Tsunami Wave Basin (TWB) at the O.H. Hinsdale Wave Research Laboratory (HWRL). These tests were run between November 2010 and February 2011. Models at 33rd scale representing Columbia Power’s Manta series Wave Energy Converter (WEC) were moored in configurations of one, three and five WEC arrays, with both regular waves and irregular seas generated. The primary research interest of ColPwr is the characterization of WEC response. The WEC response will be investigated with respect to power performance, range of motion and generator torque/speed statistics. The experimental results will be used to validate a numerical model. The primary research interests of OSU include an investigation into the effects of the WEC arrays on the near- and far-field wave propagation. This report focuses on the characterization of the response of a single WEC in isolation. To facilitate understanding of the commercial scale WEC, results will be presented as full scale equivalents.

  12. Long Duration Directional Drives for Star Formation and Photoionization

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journalspectroscopy ofArticle) | SciTechPrinciples and(Technical Report) | SciTech

  13. Long Duration Directional Drives for Star Formation and Photoionization

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journalspectroscopy ofArticle) | SciTechPrinciples and(Technical Report) |

  14. Shell trajectory measurements from direct-drive implosion experiments

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail. (Conference) |Janka,FerraraTechnologies (Conference)phaseConnect(Journal

  15. Drive reconfiguration mechanism for tracked robotic vehicle

    DOE Patents [OSTI]

    Willis, W. David (Idaho Falls, ID)

    2000-01-01

    Drive reconfiguration apparatus for changing the configuration of a drive unit with respect to a vehicle body may comprise a guide system associated with the vehicle body and the drive unit which allows the drive unit to rotate about a center of rotation that is located at about a point where the drive unit contacts the surface being traversed. An actuator mounted to the vehicle body and connected to the drive unit rotates the drive unit about the center of rotation between a first position and a second position.

  16. Neuro-Fuzzy Controller of a Sensorless PM Motor Drive For Washing Machines

    E-Print Network [OSTI]

    algorithms to enable direct drive from permanent magnet (PM) synchronous motors[3]. #12;Among AC drives, the permanent magnet (PM) motors have became popular, due to its high torque to current ration, large power of saving up to 60% of the energy being consumed by the older generation of appliances[1]. Two appliances

  17. What Drives the Choice of a Third Party Logistics Provider? Edward Anderson , Tim Coltman*

    E-Print Network [OSTI]

    Coltman, Tim

    1 What Drives the Choice of a Third Party Logistics Provider? Edward Anderson , Tim Coltman and the direction of the research project. #12;2 What Drives the Choice of a Third Party Logistics Provider of their distinctive value propositions ­ a fact one would also expect holds true when companies choose a logistics

  18. A Lightweight Encryption Scheme for Network-Coded Mobile Ad Hoc Networks

    E-Print Network [OSTI]

    Shen, Xuemin "Sherman"

    schemes. Index Terms--Mobile ad hoc networks, energy saving, network coding, lightweight encryption. ! 1 a lower energy consumption in MANETs [6]­[8]. The energy saving comes from fact that less transmissions operations, this means 1/4 energy can be saved. Besides basic transmissions, energy consumption can also come

  19. A new generic protocol for authentication and key agreement in lightweight systems

    E-Print Network [OSTI]

    Markowitch, Olivier

    A new generic protocol for authentication and key agreement in lightweight systems Na¨im Qachri1 frederic.lafitte@rma.ac.be Abstract. In this paper, we propose a new generic authenticated key agreement protocol where the master secret is automatically renewed based on a sequence of hash values, thus

  20. DATALITE: a Distributed Architecture for Traffic Analysis via Light-weight Traffic Digest

    E-Print Network [OSTI]

    Chao, Jonathan

    DATALITE: a Distributed Architecture for Traffic Analysis via Light-weight Traffic Digest for Traffic Analysis via LIght- weight Traffic digEst, which introduces a set of new distributed algorithms digests (TD's) amongst the network nodes. A TD for N packets only requires O(loglog N) bits of memory

  1. A Lightweight Network Repair Scheme for Data Collection Applications in ZigBee WSNs

    E-Print Network [OSTI]

    Tseng, Yu-Chee

    1 A Lightweight Network Repair Scheme for Data Collection Applications in ZigBee WSNs Meng networks (WSNs). In [4], a quick convergecast solution is proposed for data collection in a ZigBee beacon-enabled tree- based WSN. However, it does not consider the network repair issue. When a ZigBee router loses its

  2. Michigan Technological Center for Nanostructured and Lightweight Materials in the Department of Chemical Engineering (Phase II)

    SciTech Connect (OSTI)

    Mullins, M.; Rogers, T.; King, J.; Holles, J.; Keith, J.; Heiden, P.; Cornilsen, B.; Allen, J.

    2009-12-10

    Summaries of the followings tasks are given in this report: Task 1 - Lightweight, Thermally Conductive Bipolar Plates for Improved Thermal Management in Fuel Cells; Task 2 - Exploration of pseudomorphic nanoscale overlayer bimetallic catalysts; Task 3 - Hybrid inorganic/organic polymer nanocomposites; Task 4 - Carbonaceous Monolithic Electrodes for Fuel Cells and Rechargeable Batteries; and Task 5 - Movement and Freeze of Water in Fuel Cell Electrodes.

  3. Solar Energy Materials & Solar Cells 75 (2003) 307312 Extreme radiation hardness and light-weighted

    E-Print Network [OSTI]

    Woodall, Jerry M.

    2003-01-01

    Solar Energy Materials & Solar Cells 75 (2003) 307­312 Extreme radiation hardness and light-weighted thin-film indium phosphide solar cell and its computer simulation Guohua Lia, *, Qingfen Yanga+ -i-p+ InP solar cell is developed. The total thickness of its epitaxial layer is only 0.22 mm

  4. XinuPi: Porting a Lightweight Educational Operating System to the Raspberry Pi

    E-Print Network [OSTI]

    Brylow, Dennis

    XinuPi: Porting a Lightweight Educational Operating System to the Raspberry Pi Eric Biggers Farzeen@macalester.edu {farzeen.harunani, tyler.much, dennis.brylow}@mu.edu ABSTRACT The Raspberry Pi is a credit-card sized in embedded systems education, the Raspberry Pi presents a unique opportunity to build curricula introducing

  5. SQL is Dead; Long Live SQL: Lightweight Query Services for Ad Hoc Research Data

    E-Print Network [OSTI]

    Matrajt, Graciela

    SQL is Dead; Long Live SQL: Lightweight Query Services for Ad Hoc Research Data Bill Howe billhowe with ad hoc scientific Q&A. Further: · We reject the conventional wisdom that "scientists won't write SQL a production-quality database server. · We observe that simply sharing examples of SQL queries allows

  6. Exomerge user's manual : a lightweight Python interface for manipulating Exodus files.

    SciTech Connect (OSTI)

    Kostka, Timothy D.

    2013-01-01

    Exomerge is a lightweight Python module for reading, manipulating and writing data within ExodusII files. It is built upon a Python wrapper around the ExodusII API functions. This module, the Python wrapper, and the ExodusII libraries are available as part of the standard SIERRA installation.

  7. Self-blindable Credential: Towards LightWeight Anonymous Entity Authentication

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    , e.g., an electronic driver license or an e-identity, such that the owner can use the mobile phone license card which is presented by the user herself, digital credentials are often automatically applied have lightweight computation and communica- tion in order to minimize the time delay and energy

  8. Lightweight Floating-Point Arithmetic: Case Study of Inverse Discrete Cosine Transform

    E-Print Network [OSTI]

    Chen, Tsuhan

    , customizable bit- width, rounding modes, low-power, inverse discrete cosine transform, video coding 1 of effort must be spent to manage the complexity, power consumption and time-to-market of the modernLightweight Floating-Point Arithmetic: Case Study of Inverse Discrete Cosine Transform Fang Fang

  9. Skyline Queries Against Mobile Lightweight Devices in MANETs Zhiyong Huang1

    E-Print Network [OSTI]

    Ooi, Beng Chin

    Skyline Queries Against Mobile Lightweight Devices in MANETs Zhiyong Huang1 Christian S. Jensen2 and distributed setting, where each mobile device is capable of holding only a portion of the whole dataset; where devices communicate through mobile ad hoc networks; and where a query issued by a mobile user

  10. A Lightweight Certificate-based Source Authentication Protocol for Group Communication

    E-Print Network [OSTI]

    Baras, John S.

    of lightweight, symmetric-key certificates called TESLA certificate. The certificates bind the identities and verification frequently can prevent the CPU from other functions and drain the battery quickly. Therefore resources. We propose to achieve authentication using a new class of certificates called TESLA Certificate

  11. Vehicle Technologies Office: 2012 Lightweight Materials R&D Annual Progress Report

    Office of Energy Efficiency and Renewable Energy (EERE)

    As part of the U.S. Department of Energys (DOEs) Vehicle Technologies Office (VTO), the Lightweight Materials activity (LM) focuses on the development and validation of advanced materials and manufacturing technologies to significantly reduce light and heavy duty vehicle weight without compromising other attributes such as safety, performance, recyclability, and cost.

  12. Using Mixins to Build a Flexible Lightweight Middleware for Ubiquitous Computing

    E-Print Network [OSTI]

    Apel, Sven

    Using Mixins to Build a Flexible Lightweight Middleware for Ubiquitous Computing Sven Apel, Klemens}@iti.cs.uni-magdeburg.de Abstract. Ubiquitous computing is a challenge for the design of middle- ware. The reasons are resource. The middleware configurations derived perform well in these respects. 1 Introduction Ubiquitous computing [26

  13. LIGHTWEIGHT PEOPLE COUNTING AND LOCALIZING IN INDOOR SPACES USING CAMERA SENSOR NODES

    E-Print Network [OSTI]

    Teixeira, Thiago

    a sen- sor network deployed inside a house are processed together with building map information to recognize the activities of the house inhabitants. The locations of people in time and space during more precise information than Passive Infrared Sensors (PIR) but more lightweight and privacy

  14. Center for Fundamental and Applied Research in Nanostructured and Lightweight Materials. Final Technical Summary

    SciTech Connect (OSTI)

    Mullins, Michael; Rogers, Tony; King, Julia; Keith, Jason; Cornilsen, Bahne; Allen, Jeffrey; Gilbert, Ryan; Holles, Joseph

    2010-09-28

    The core projects for this DOE-sponsored Center at Michigan Tech have focused on several of the materials problems identified by the NAS. These include: new electrode materials, enhanced PEM materials, lighter and more effective bipolar plates, and improvement of the carbon used as a current carrier. This project involved fundamental and applied research in the development and testing of lightweight and nanostructured materials to be used in fuel cell applications and for chemical synthesis. The advent of new classes of materials engineered at the nanometer level can produce materials that are lightweight and have unique physical and chemical properties. The grant was used to obtain and improve the equipment infrastructure to support this research and also served to fund seven research projects. These included: 1. Development of lightweight, thermally conductive bipolar plates for improved thermal management in fuel cells; 2. Exploration of pseudomorphic nanoscale overlayer bimetallic catalysts for fuel cells; 3. Development of hybrid inorganic/organic polymer nanocomposites with improved ionic and electronic properties; 4. Development of oriented polymeric materials for membrane applications; 5. Preparation of a graphitic carbon foam current collectors; 6. The development of lightweight carbon electrodes using graphitic carbon foams for battery and fuel cell applications; and 7. Movement of water in fuel cell electrodes.

  15. A previously developed 3 axis mini direct drive robot has been enhanced with two additional direct drive axes for

    E-Print Network [OSTI]

    relatively heavy, high cost and complex systems, towards low mass, low cost systems with fewer functions manipulator into low earth orbit and control it from the ground to perform an end-to- end test of ground is planned to make MicroTrex an educational and motiva- tional experience for future engineers. Currently

  16. Anomalous-viscosity current drive

    DOE Patents [OSTI]

    Stix, T.H.; Ono, M.

    1986-04-25

    The present invention relates to a method and apparatus for maintaining a steady-state current for magnetically confining the plasma in a toroidal magnetic confinement device using anomalous viscosity current drive. A second aspect of this invention relates to an apparatus and method for the start-up of a magnetically confined toroidal plasma.

  17. Focus Series: Maine - Residential Direct Install Program | Department...

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

    Better Buildings Neighborhood Program Focus Series: Maine - Residential Direct Install Program: Residential Air Sealing Program Drives Maine Home Energy Savings Through the Roof....

  18. All-optical measurement of the hot electron sheath driving laser ion acceleration from thin foils

    E-Print Network [OSTI]

    Jackel, O.

    We present experimental results from an all-optical diagnostic method to directly measure the evolution of the hot-electron distribution driving the acceleration of ions from thin foils using high-intensity lasers. Central ...

  19. A lightweight transport protocol for multi-resolution and real-time multimedia communications over heterogenous networks 

    E-Print Network [OSTI]

    Cheng, Sheng-Te

    1995-01-01

    ) REQUIREMENTS AND A LIGHTWEIGHT TRANSPORT PROTOCOL (LWTP) A. QOS Requirements 1. Low Delay 2. Low Jitter 3. Adequate Bandwidth 4. Media Synchronization 5. Reliability B. Lightweight Transport Protocol (LWTP) and QOS (Qual- ity of Service) 1. Why... Lightweight Transport Protocols 2. Previous LWTP Research C. An Overview of RTP (Real-time Transport Protocol) 1. The RTP Headers 2. RTP Header Extension 3. RTP Control Protocol (RTCP) 12 13 13 17 18 19 19 20 21 22 23 24 24 24 III THE LWTP...

  20. Vehicle drive module having improved terminal design

    DOE Patents [OSTI]

    Beihoff, Bruce C.; Radosevich, Lawrence D.; Phillips, Mark G.; Kehl, Dennis L.; Kaishian, Steven C.; Kannenberg, Daniel G.

    2006-04-25

    A terminal structure for vehicle drive power electronics circuits reduces the need for a DC bus and thereby the incidence of parasitic inductance. The structure is secured to a support that may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support may form a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as by direct contact between the terminal assembly and AC and DC circuit components. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

  1. Vehicle drive module having improved EMI shielding

    DOE Patents [OSTI]

    Beihoff, Bruce C.; Kehl, Dennis L.; Gettelfinger, Lee A.; Kaishian, Steven C.; Phillips, Mark G.; Radosevich, Lawrence D.

    2006-11-28

    EMI shielding in an electric vehicle drive is provided for power electronics circuits and the like via a direct-mount reference plane support and shielding structure. The thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support forms a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

  2. Directives Tools

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

    Useful links and resources for Directives Writers, Directives Point of Contact (DPCs), Subject Matter Experts (SMEs), and Draft Directive Reviewers.

  3. Redundant Arrays of IDE Drives

    E-Print Network [OSTI]

    D. A. Sanders; L. M. Cremaldi; V. Eschenburg; C. N. Lawrence; C. Riley; D. J. Summers; D. L. Petravick

    2002-12-05

    The next generation of high-energy physics experiments is expected to gather prodigious amounts of data. New methods must be developed to handle this data and make analysis at universities possible. We examine some techniques that use recent developments in commodity hardware. We test redundant arrays of integrated drive electronics (IDE) disk drives for use in offline high-energy physics data analysis. IDE redundant array of inexpensive disks (RAID) prices now equal the cost per terabyte of million-dollar tape robots! The arrays can be scaled to sizes affordable to institutions without robots and used when fast random access at low cost is important. We also explore three methods of moving data between sites; internet transfers, hot pluggable IDE disks in FireWire cases, and writable digital video disks (DVD-R).

  4. Optimization of condensing gas drive 

    E-Print Network [OSTI]

    Lofton, Larry Keith

    1977-01-01

    - cal, undersaturated reservoir with gas being injected into the crest and oil being produced from the base of the structure. Fractional oil re- covery at gas breakthrough proved to be less sensitive to changes in oil withdrawal rates as the gas... injection pressure was increased. The validity of the model was established by accurately simulating several low pressure gas drives conducted in the laboratory. Oil recoveries at gas breakthrough using the model compared closely with those recoveries...

  5. U-Filter: A Lightweight XML View Update Checker Ling Wang, Elke A. Rundensteiner and Murali Mani

    E-Print Network [OSTI]

    Mani, Murali

    U-Filter: A Lightweight XML View Update Checker Ling Wang, Elke A. Rundensteiner and Murali Mani & Schuster Inc.A02 Prentice-Hall Inc.B01 McGraw-Hill Inc.A01 pubn

  6. What If Cars Could Drive Themselves?

    E-Print Network [OSTI]

    Shladover, Steven E.

    2000-01-01

    What If Cars Could Drive Themselves? BY STEVEN E.SHLADOVER E V E N W H E N cars were still young, futuristssome of the implications of cars that could drive t h e m s

  7. LDRD final report : a lightweight operating system for multi-core capability class supercomputers.

    SciTech Connect (OSTI)

    Kelly, Suzanne Marie; Hudson, Trammell B. (OS Research); Ferreira, Kurt Brian; Bridges, Patrick G. (University of New Mexico); Pedretti, Kevin Thomas Tauke; Levenhagen, Michael J.; Brightwell, Ronald Brian

    2010-09-01

    The two primary objectives of this LDRD project were to create a lightweight kernel (LWK) operating system(OS) designed to take maximum advantage of multi-core processors, and to leverage the virtualization capabilities in modern multi-core processors to create a more flexible and adaptable LWK environment. The most significant technical accomplishments of this project were the development of the Kitten lightweight kernel, the co-development of the SMARTMAP intra-node memory mapping technique, and the development and demonstration of a scalable virtualization environment for HPC. Each of these topics is presented in this report by the inclusion of a published or submitted research paper. The results of this project are being leveraged by several ongoing and new research projects.

  8. Chapter 8: Advancing Clean Transportation and Vehicle Systems and Technologies | Lightweight Automotive Materials Technology Assessment

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergy Headquarters Categorical| Department of Energy5: Lighting,Actions |8:FuelLightweight

  9. Lightweight materials in the light-duty passenger vehicle market: Their market penetration potential and impacts

    SciTech Connect (OSTI)

    Stodolsky, F. [Argonne National Lab., IL (United States). Center for Transportation Research]|[Argonne National Lab., Washington, DC (United States); Vyas, A.; Cuenca, R. [Argonne National Lab., IL (United States). Center for Transportation Research

    1995-06-01

    This paper summarizes the results of a lightweight materials study. Various lightweight materials are examined and the most cost effective are selected for further analysis. Aluminum and high-performance polymer matrix composites (PMCS) are found to have the highest potential for reducing the weight of automobiles and passenger-oriented light trucks. Weight reduction potential for aluminum and carbon fiber-based PMCs are computed based on a set of component-specific replacement criteria (such as stiffness and strength), and the consequent incremental cost scenarios are developed. The authors assume that a materials R and D program successfully reduces the cost of manufacturing aluminum and carbon fiber PMC-intensive vehicles. A vehicle choice model is used to project market shares for the lightweight vehicles. A vehicle survival and age-related usage model is employed to compute energy consumption over time for the vehicle stock. After a review of projected costs, the following two sets of vehicles are characterized to compete with the conventional materials vehicles: (1) aluminum vehicles with limited replacement providing 19% weight reduction (AIV-Mid), and (2) aluminum vehicles with the maximum replacement providing 31% weight reduction (AIV-Max). Assuming mass-market introduction in 2005, the authors project a national petroleum energy savings of 3% for AIV-Mid and 5% for AIV-Max in 2030.

  10. Consider Steam Turbine Drives for Rotating Equipment | Department...

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

    Steam Turbine Drives for Rotating Equipment Consider Steam Turbine Drives for Rotating Equipment This tip sheet outlines the benefits of steam turbine drives for rotating equipment...

  11. US DRIVE Vehicle Systems and Analysis Technical Team Roadmap...

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

    DRIVE Technical Teams in determining performance goals and validation metrics. vsattroadmapjune2013.pdf More Documents & Publications US DRIVE Driving Research and Innovation...

  12. Vehicle Technologies Office: U.S. DRIVE 2014 Technical Accomplishments...

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

    Vehicle Technologies Office: U.S. DRIVE 2014 Technical Accomplishments Report Vehicle Technologies Office: U.S. DRIVE 2014 Technical Accomplishments Report The U.S. DRIVE 2014...

  13. Fluid cooled vehicle drive module

    DOE Patents [OSTI]

    Beihoff, Bruce C.; Radosevich, Lawrence D.; Meyer, Andreas A.; Gollhardt, Neil; Kannenberg, Daniel G.

    2005-11-15

    An electric vehicle drive includes a support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. The support, in conjunction with other packaging features may form a shield from both external EM/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

  14. Traction Drive Systems Breakout Group

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE- Non-ResidentialAlliantPGEDepartment ofpresentationTRACTION DRIVE SYSTEM

  15. ARM - SGP Rural Driving Hazards

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Comments?govInstrumentsnoaacrnBarrow, Alaska OutreachCalendarPressExtended Facility SGP RelatedRural Driving

  16. Electric vehicle drive train with rollback detection and compensation

    DOE Patents [OSTI]

    Konrad, Charles E. (Roanoke, VA)

    1994-01-01

    An electric vehicle drive train includes a controller for detecting and compensating for vehicle rollback, as when the vehicle is started upward on an incline. The vehicle includes an electric motor rotatable in opposite directions corresponding to opposite directions of vehicle movement. A gear selector permits the driver to select an intended or desired direction of vehicle movement. If a speed and rotational sensor associated with the motor indicates vehicle movement opposite to the intended direction of vehicle movement, the motor is driven to a torque output magnitude as a nonconstant function of the rollback speed to counteract the vehicle rollback. The torque function may be either a linear function of speed or a function of the speed squared.

  17. Electric vehicle drive train with rollback detection and compensation

    DOE Patents [OSTI]

    Konrad, C.E.

    1994-12-27

    An electric vehicle drive train includes a controller for detecting and compensating for vehicle rollback, as when the vehicle is started upward on an incline. The vehicle includes an electric motor rotatable in opposite directions corresponding to opposite directions of vehicle movement. A gear selector permits the driver to select an intended or desired direction of vehicle movement. If a speed and rotational sensor associated with the motor indicates vehicle movement opposite to the intended direction of vehicle movement, the motor is driven to a torque output magnitude as a nonconstant function of the rollback speed to counteract the vehicle rollback. The torque function may be either a linear function of speed or a function of the speed squared. 6 figures.

  18. Electric vehicle drive train with contactor protection

    DOE Patents [OSTI]

    Konrad, Charles E. (Roanoke, VA); Benson, Ralph A. (Roanoke, VA)

    1994-01-01

    A drive train for an electric vehicle includes a traction battery, a power drive circuit, a main contactor for connecting and disconnecting the traction battery and the power drive circuit, a voltage detector across contacts of the main contactor, and a controller for controlling the main contactor to prevent movement of its contacts to the closed position when the voltage across the contacts exceeds a predetermined threshold, to thereby protect the contacts of the contactor. The power drive circuit includes an electric traction motor and a DC-to-AC inverter with a capacitive input filter. The controller also inhibits the power drive circuit from driving the motor and thereby discharging the input capacitor if the contacts are inadvertently opened during motoring. A precharging contactor is controlled to charge the input filter capacitor prior to closing the main contactor to further protect the contacts of the main contactor.

  19. Electric vehicle drive train with contactor protection

    DOE Patents [OSTI]

    Konrad, C.E.; Benson, R.A.

    1994-11-29

    A drive train for an electric vehicle includes a traction battery, a power drive circuit, a main contactor for connecting and disconnecting the traction battery and the power drive circuit, a voltage detector across contacts of the main contactor, and a controller for controlling the main contactor to prevent movement of its contacts to the closed position when the voltage across the contacts exceeds a predetermined threshold, to thereby protect the contacts of the contactor. The power drive circuit includes an electric traction motor and a DC-to-AC inverter with a capacitive input filter. The controller also inhibits the power drive circuit from driving the motor and thereby discharging the input capacitor if the contacts are inadvertently opened during motoring. A precharging contactor is controlled to charge the input filter capacitor prior to closing the main contactor to further protect the contacts of the main contactor. 3 figures.

  20. Marketing & Driving Demand: Social Media Tools & Strategies ...

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

    January 16, 2011 Conference Call transcript: "Marketing & Driving Demand: Social Media Tools & Strategies," from the U.S. Department of Energy. Conference call transcript More...

  1. Advanced Electric Drive Vehicles ? A Comprehensive Education...

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

    -- Washington D.C. tiarravt034ferdowsi2010o.pdf More Documents & Publications Advanced Electric Drive Vehicles A Comprehensive Education, Training, and Outreach Program...

  2. Advanced Electric Drive Vehicles ? A Comprehensive Education...

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

    Meeting arravt034tiferdowsi2012o.pdf More Documents & Publications Advanced Electric Drive Vehicles A Comprehensive Education, Training, and Outreach Program...

  3. Advanced Electric Drive Vehicles ? A Comprehensive Education...

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

    Peer Evaluation arravt034tiferdowsi2011p.pdf More Documents & Publications Advanced Electric Drive Vehicles A Comprehensive Education, Training, and Outreach Program...

  4. Vehicle Technologies Office: 2014 Electric Drive Technologies...

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

    automotive technologies under development. Research is focused on developing power electronics (PE), electric motor, and traction drive system (TDS) technologies that will reduce...

  5. High Efficiency Driving Electronics for General Illumination...

    Office of Scientific and Technical Information (OSTI)

    Driving Electronics for General Illumination LED Luminaires Upadhyay, Anand 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION New generation of standalone LED driver platforms...

  6. Grand Challenge Portfolio: Driving Innovations in Industrial...

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

    8 Grand Challenge Portfolio: Driving Innovations in Industrial Energy Efficiency, January 2011 - pg 8 grandchallengesportfoliopg8.pdf More Documents & Publications Grand...

  7. Grand Challenge Portfolio: Driving Innovations in Industrial...

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

    9 Grand Challenge Portfolio: Driving Innovations in Industrial Energy Efficiency, January 2011 - pg 9 grandchallengesportfoliopg9.pdf More Documents & Publications Grand...

  8. Grand Challenge Portfolio: Driving Innovations in Industrial...

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

    6 Grand Challenge Portfolio: Driving Innovations in Industrial Energy Efficiency, January 2011 - pg 6 grandchallengesportfoliopg6.pdf More Documents & Publications Grand...

  9. Fuel Economy: What Drives Consumer Choice?

    E-Print Network [OSTI]

    Turrentine, Tom; Kurani, Kenneth S; Heffner, Reid R.

    2008-01-01

    Car Buyers and Fuel Economy? ” Energy Policy, vol. 35, 2007.Fuel Economy: What Drives Consumer Choice? BY TOMyou think about fuel economy? ” Rather, we listened closely

  10. Fuel Economy: What Drives Consumer Choice?

    E-Print Network [OSTI]

    Turrentine, Tom; Kurani, Kenneth; Heffner, Rusty

    2007-01-01

    Car Buyers and Fuel Economy? ” Energy Policy, vol. 35, 2007.Fuel Economy: What Drives Consumer Choice? BY TOMyou think about fuel economy? ” Rather, we listened closely

  11. Electric-Drive Vehicle Basics (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-04-01

    Describes the basics of electric-drive vehicles, including hybrid electric vehicles, plug-in hybrid electric vehicles, all-electric vehicles, and the various charging options.

  12. Framework for assessing impacts of pile-driving noise from offshore wind farm construction on a harbour seal population

    E-Print Network [OSTI]

    Aberdeen, University of

    Framework for assessing impacts of pile-driving noise from offshore wind farm construction Keywords: EU habitats directive Appropriate assessment Population consequences Disturbance Offshore wind farm Marine mammal Offshore wind farm developments may impact protected marine mammal populations

  13. 212.854.1200 F facultyhouse.com 64 Morningside Drive F New York, New York 10027

    E-Print Network [OSTI]

    Salzman, Daniel

    212.854.1200 F facultyhouse.com 64 Morningside Drive F New York, New York 10027 DIRECTIONS League setting in New York, NY. GRAND CENTRAL PENN. STATION LINCOLN CENTER MUSEUM OF NATURAL HISTORY

  14. Preprint version, final version at http://ieeexplore.ieee.org/ 2015 IEEE Int. Conf. on Robotics & Automation, Seattle, WA, USA Design, Identification and Experimental Testing of a Light-weight

    E-Print Network [OSTI]

    interaction tasks. In [7], a light-weight industrial arm is attached to a small-size helicopter, under

  15. DRIVE Analysis Tool Generates Custom Vehicle Drive Cycles Based on Real-World Data (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-04-01

    This fact sheet from the National Renewable Energy Laboratory describes the Drive-Cycle Rapid Investigation, Visualization, and Evaluation (DRIVE) analysis tool, which uses GPS and controller area network data to characterize vehicle operation and produce custom vehicle drive cycles, analyzing thousands of hours of data in a matter of minutes.

  16. METHODS OF RADIO-FREQUENCY CURRENT DRIVE

    E-Print Network [OSTI]

    -670 Radio-frequency waves can penetrate thermonuclear plasmas, depositing momentum and energy with great. INTRODUCTION Using radio-frequency (rf) waves to drive the toroidal current in tokamak reactors is attractiveMETHODS OF RADIO-FREQUENCY CURRENT DRIVE N. J. FISCH* Princeton Plasma Physics Laboratory

  17. The MITRE Corporation 7515 Colshire Drive

    E-Print Network [OSTI]

    Tritium JASON The MITRE Corporation 7515 Colshire Drive McLean, Virginia 22102-7508 (703) 983 ORGANIZATION REPORT NUMBER The MITRE Corporation JASON Program Office 7515 Colshire Drive McLean, Virginia of tritium per year of operation which must be bred as part of the overall reactor cycle. Traditionally

  18. Control rod drive hydraulic system

    DOE Patents [OSTI]

    Ose, Richard A. (San Jose, CA)

    1992-01-01

    A hydraulic system for a control rod drive (CRD) includes a variable output-pressure CR pump operable in a charging mode for providing pressurized fluid at a charging pressure, and in a normal mode for providing the pressurized fluid at a purge pressure, less than the charging pressure. Charging and purge lines are disposed in parallel flow between the CRD pump and the CRD. A hydraulic control unit is disposed in flow communication in the charging line and includes a scram accumulator. An isolation valve is provided in the charging line between the CRD pump and the scram accumulator. A controller is operatively connected to the CRD pump and the isolation valve and is effective for opening the isolation valve and operating the CRD pump in a charging mode for charging the scram accumulator, and closing the isolation valve and operating the CRD pump in a normal mode for providing to the CRD through the purge line the pressurized fluid at a purge pressure lower than the charging pressure.

  19. GATE Center of Excellence at UAB in Lightweight Materials for Automotive Applications

    SciTech Connect (OSTI)

    2011-07-31

    This report summarizes the accomplishments of the UAB GATE Center of Excellence in Lightweight Materials for Automotive Applications. The first Phase of the UAB DOE GATE center spanned the period 2005-2011. The UAB GATE goals coordinated with the overall goals of DOE's FreedomCAR and Vehicles Technologies initiative and DOE GATE program. The FCVT goals are: (1) Development and validation of advanced materials and manufacturing technologies to significantly reduce automotive vehicle body and chassis weight without compromising other attributes such as safety, performance, recyclability, and cost; (2) To provide a new generation of engineers and scientists with knowledge and skills in advanced automotive technologies. The UAB GATE focused on both the FCVT and GATE goals in the following manner: (1) Train and produce graduates in lightweight automotive materials technologies; (2) Structure the engineering curricula to produce specialists in the automotive area; (3) Leverage automotive related industry in the State of Alabama; (4) Expose minority students to advanced technologies early in their career; (5) Develop innovative virtual classroom capabilities tied to real manufacturing operations; and (6) Integrate synergistic, multi-departmental activities to produce new product and manufacturing technologies for more damage tolerant, cost-effective, and lighter automotive structures.

  20. A lightweight high performance dual-axis gimbal for space applications

    SciTech Connect (OSTI)

    Pines, D.J.; Hakala, D.B.; Malueg, R.

    1995-05-05

    This paper describes the design, development and performance of a lightweight precision gimbal with dual-axis slew capability to be used in a closed-loop optical tracking system at Lawrence Livermore National Laboratory-LLNL. The motivation for the development of this gimbal originates from the need to acquire and accurately localize warm objects (T{approximately}500 K) in a cluttered background. The design of the gimbal is centered around meeting the following performance requirements: pointing accuracy with control < 35 {mu}rad-(1-{omega}); slew capability > 0.2 rad/sec; mechanical weight < 5 kg. These performance requirements are derived by attempting to track a single target from multiple satellites in low Earth orbit using a mid-wave infrared camera. Key components in the gimbal hardware that are essential to meeting the performance objectives include a nickel plated beryllium mirro, an accurate lightweight capacitive pickoff device for angular measurement about the elevation axis, a 16-bit coarse/fine resolver for angular measurement about the azimuth axis, a toroidally wound motor with low hysteresis for providing torque about the azimuth axis, and the selection of beryllium parts to insure high stiffness to weight ratios and more efficient thermal conductivity. Each of these elements are discussed in detail to illustrate the design trades performed to meet the tracking and slewing requirements demanded. Preliminary experimental results are also given for various commanded tracking maneuvers.

  1. HOSNY, AMR. Behavior of Concrete Members Containing Lightweight Synthetic Particles. (Under the direction of Dr. Sami Rizkalla.)

    E-Print Network [OSTI]

    for pumping purposes, thus reducing the wear and tear of the equipment, and produces durable concrete

  2. Risks of using AP locations discovered through war driving

    E-Print Network [OSTI]

    Kotz, David

    Risks of using AP locations discovered through war driving Minkyong Kim, Jeffrey J. Fielding the actual locations are often unavailable, they use estimated locations from war driving estimated through war driving. War driving is the process of collecting Wi-Fi beacons by driving or walking

  3. A Drive Laser for Multi-Bunch Photoinjector Operation

    SciTech Connect (OSTI)

    Gibson, D J; Cormier, E; Messerly, M J; Prantil, M A; Barty, C J

    2012-05-11

    Numerous electron beam applications would benefit from increased average current without sacrificing beam brightness. Work is underway at LLNL to investigate the performance of X-band photoinjectors that would generate electron bunches at a rate matching the RF drive frequency, i.e. one bunch per RF cycle. A critical part of this effort involves development of photo-cathode drive laser technology. Here we present a new laser architecture that can generate pulse trains at repetition rates up to several GHz. This compact, fiber-based system is driven directly by the accelerator RF and so is inherently synchronized with the accelerating fields, and scales readily over a wide range of drive frequencies (L-band through X-band). The system will be required to produce 0.5 {mu}J, {approx}200 fs rise time, spatially and temporally shaped UV pulses designed to optimize the electron beam brightness. Presented is the current status of this system, producing 2 ps pulses from a continuous-wave source.

  4. Wind turbine ring/shroud drive system

    DOE Patents [OSTI]

    Blakemore, Ralph W.

    2005-10-04

    A wind turbine capable of driving multiple electric generators having a ring or shroud structure for reducing blade root bending moments, hub loads, blade fastener loads and pitch bearing loads. The shroud may further incorporate a ring gear for driving an electric generator. In one embodiment, the electric generator may be cantilevered from the nacelle such that the gear on the generator drive shaft is contacted by the ring gear of the shroud. The shroud also provides protection for the gearing and aids in preventing gear lubricant contamination.

  5. IEEE TRANSACTIONS ON SMART GRID, VOL. 2, NO. 4, DECEMBER 2011 675 A Lightweight Message Authentication Scheme for

    E-Print Network [OSTI]

    Shen, Xuemin "Sherman"

    IEEE TRANSACTIONS ON SMART GRID, VOL. 2, NO. 4, DECEMBER 2011 675 A Lightweight Message Authentication Scheme for Smart Grid Communications Mostafa M. Fouda, Member, IEEE, Zubair Md. Fadlullah, Member Abstract--Smart grid (SG) communication has recently received significant attentions to facilitate

  6. Near to the Brain: Functional Near-Infrared Spectroscopy as a Lightweight Brain Imaging Technique for Visualization

    E-Print Network [OSTI]

    Cortes, Corinna

    Near to the Brain: Functional Near-Infrared Spectroscopy as a Lightweight Brain Imaging Technique conditions. The brain activity plot is the mean change in deoxygenated hemoglobin over 130 trials of each and position judgment tasks in pie charts and bar graphs. The brain activity plot is the mean chance

  7. Abstract--Design of low-cost, miniature, lightweight, ultra low-power, intelligent sensors capable of

    E-Print Network [OSTI]

    Milenkovi, Aleksandar

    1 of 4 Abstract--Design of low-cost, miniature, lightweight, ultra low-power, intelligent sensors promises a cost-effective, flexible platform that allows easy customization, run-time reconfiguration for hardware acceleration will increase reuse and alleviate costs of transition to a new generation of sensors

  8. ULTRA-LIGHTWEIGHT AMORPHOUS SILICON SOLAR CELLS DEPOSITED OIN 7.5pn-1 THICK STAINLESS STEEL SUBSTRATES

    E-Print Network [OSTI]

    Deng, Xunming

    ULTRA-LIGHTWEIGHT AMORPHOUS SILICON SOLAR CELLS DEPOSITED OIN 7.5pn-1 THICK STAINLESS STEEL specific power for space application, we deposited a-Si thin film solar cells on ultra-thin stainless steel-thin stainless steel (SS) substrates (down to 7.5 pm) for space power applications. In this paper, we report our

  9. In-line drivetrain and four wheel drive work machine using same

    DOE Patents [OSTI]

    Hoff, Brian (East Peoria, IL)

    2008-08-05

    A four wheel drive articulated mine loader is powered by a fuel cell and propelled by a single electric motor. The drivetrain has the first axle, second axle, and motor arranged in series on the work machine chassis. Torque is carried from the electric motor to the back differential via a pinion meshed with the ring gear of the back differential. A second pinion oriented in an opposite direction away from the ring gear is coupled to a drive shaft to transfer torque from the ring gear to the differential of the front axle. Thus, the ring gear of the back differential acts both to receive torque from the motor and to transfer torque to the forward axle. The in-line drive configuration includes a single electric motor and a single reduction gear to power the four wheel drive mine loader.

  10. Confinement improvement with rf poloidal current drive in the reversed-field pinch

    SciTech Connect (OSTI)

    Hokin, S.; Sarff, J.; Sovinec, C.; Uchimoto, E.

    1994-03-08

    External control of the current profile in a reversed-field pinch (RFP), by means such as rf poloidal current drive, may have beneficial effects well beyond the direct reduction of Ohmic input power due to auxiliary heating. Reduction of magnetic turbulence associated with the dynamo, which drives poloidal current in a conventional RFP, may allow operation at lower density and higher electron temperature, for which rf current drive becomes efficient and the RFP operates in a more favorable regime on the n{tau} vs T diagram. Projected parameters for RFX at 2 MA axe studied as a concrete example. If rf current drive allows RFX to operate with {beta} = 10% (plasma energy/magnetic energy) at low density (3 {times} 10{sup 19} m{sup {minus}3}) with classical resistivity (i.e. without dynamo-enhanced power input), 40 ms energy confinement times and 3 keV temperatures will result, matching the performance of tokamaks of similar size.

  11. Phase modulated rotor angle encoder for switched reluctance motor drive 

    E-Print Network [OSTI]

    Mahajan, Shailendra

    1993-01-01

    Advantages of the switched reluctance motor (SRM) drive makes it an attractive candidate for replacing many adjustable speed ac and dc drives, in both industrial and consumer applications. The switched reluctance drives ...

  12. Test Drive: Honda FCX Clarity | Department of Energy

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

    Test Drive: Honda FCX Clarity Test Drive: Honda FCX Clarity May 14, 2010 - 10:52am Addthis A member of the Energy Empowers team takes the Honda FCX Clarity for a drive outside the...

  13. Universal power transistor base drive control unit

    DOE Patents [OSTI]

    Gale, Allan R. (Allen Park, MI); Gritter, David J. (Racine, WI)

    1988-01-01

    A saturation condition regulator system for a power transistor which achieves the regulation objectives of a Baker clamp but without dumping excess base drive current into the transistor output circuit. The base drive current of the transistor is sensed and used through an active feedback circuit to produce an error signal which modulates the base drive current through a linearly operating FET. The collector base voltage of the power transistor is independently monitored to develop a second error signal which is also used to regulate base drive current. The current-sensitive circuit operates as a limiter. In addition, a fail-safe timing circuit is disclosed which automatically resets to a turn OFF condition in the event the transistor does not turn ON within a predetermined time after the input signal transition.

  14. Universal power transistor base drive control unit

    DOE Patents [OSTI]

    Gale, A.R.; Gritter, D.J.

    1988-06-07

    A saturation condition regulator system for a power transistor is disclosed which achieves the regulation objectives of a Baker clamp but without dumping excess base drive current into the transistor output circuit. The base drive current of the transistor is sensed and used through an active feedback circuit to produce an error signal which modulates the base drive current through a linearly operating FET. The collector base voltage of the power transistor is independently monitored to develop a second error signal which is also used to regulate base drive current. The current-sensitive circuit operates as a limiter. In addition, a fail-safe timing circuit is disclosed which automatically resets to a turn OFF condition in the event the transistor does not turn ON within a predetermined time after the input signal transition. 2 figs.

  15. Consider Steam Turbine Drives for Rotating Equipment

    SciTech Connect (OSTI)

    Not Available

    2006-01-01

    This revised ITP tip sheet on steam turbine drives for rotating equipment provides how-to advice for improving the system using low-cost, proven practices and technologies.

  16. Adjustable Speed Drive Power Quality Evaluation Program

    E-Print Network [OSTI]

    Strangas, Elias G.

    Unruh from Consumers Power provided technical guidance, while Ms. Heidi Muir from Demand Side Management and managed by Detroit Edi- son, Consumers Power and Drive manufacturers to evaluate the operational charac

  17. Evolution: Geology and climate drive diversification

    E-Print Network [OSTI]

    Gillespie, RG; Roderick, GK

    2014-01-01

    on 7 May 2014. EVO LU TI O N Geology and climate driveIslands exemplify how geology and climate can interact toevents, the dynamics of geology and climate can be powerful

  18. Solid State AC Motor Drives - Conservation Perspectives 

    E-Print Network [OSTI]

    Mohan, N.; Ferraro, R. J.

    1982-01-01

    Variable Frequency Solid-State Inverters: can control the speed of ac motors by producing adjustable frequency ac voltage, with an enormous potential for energy conservation in pumps and air handling systems. 3. Other Variable Frequency Drives: include...

  19. 101 Innovation Drive San Jose, CA 95134

    E-Print Network [OSTI]

    Moshovos, Andreas

    101 Innovation Drive San Jose, CA 95134 www.altera.com Nios II Processor Reference Handbook NII5V1 applications, maskwork rights, and copyrights. Altera warrants performance of its semiconductor products ........................................................................... ix About This Handbook

  20. Jefferson Lab Visitor's Center - Driving in Virginia

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

    Driving in virginia Effective January 1, 2004, all applicants for a driver's license or photo ID card must show proof of U.S. Citizenship or Legal Presence in the United States. A...

  1. Shared Authority Concerns in Automated Driving Applications

    E-Print Network [OSTI]

    Cummings, M.L.

    2014-05-13

    Given the move toward driverless cars, which includes the more short-term goal of driving assistance, what the appropriate shared authority and interaction paradigms should be between human drivers and the automation remains ...

  2. Fuel Economy: What Drives Consumer Choice?

    E-Print Network [OSTI]

    Turrentine, Tom; Kurani, Kenneth; Heffner, Rusty

    2007-01-01

    S. Kurani, “Car Buyers and Fuel Economy? ” Energy Policy,Fuel Economy: What Drives Consumer Choice? BY TOMa car, do they think about fuel costs over time, are they

  3. Frequency modulation drive for a piezoelectric motor

    DOE Patents [OSTI]

    Mittas, Anthony (Albuquerque, NM)

    2001-01-01

    A piezoelectric motor has peak performance at a specific frequency f.sub.1 that may vary over a range of frequencies. A drive system is disclosed for operating such a motor at peak performance without feedback. The drive system consists of the motor and an ac source connected to power the motor, the ac source repeatedly generating a frequency over a range from f.sub.1 -.DELTA.x to f.sub.1 +.DELTA.y.

  4. Upgrading the Center for Lightweighting Automotive Materials and Processing - a GATE Center of Excellence at the University of Michigan-Dearborn

    SciTech Connect (OSTI)

    Mallick, P. K.

    2012-08-30

    The Center for Lightweighting Materials and Processing (CLAMP) was established in September 1998 with a grant from the Department of Energy’s Graduate Automotive Technology Education (GATE) program. The center received the second round of GATE grant in 2005 under the title “Upgrading the Center for Lightweighting Automotive Materials and Processing”. Using the two grants, the Center has successfully created 10 graduate level courses on lightweight automotive materials, integrated them into master’s and PhD programs in Automotive Systems Engineering, and offered them regularly to the graduate students in the program. In addition, the Center has created a web-based lightweight automotive materials database, conducted research on lightweight automotive materials and organized seminars/symposia on lightweight automotive materials for both academia and industry. The faculty involved with the Center has conducted research on a variety of topics related to design, testing, characterization and processing of lightweight materials for automotive applications and have received numerous research grants from automotive companies and government agencies to support their research. The materials considered included advanced steels, light alloys (aluminum, magnesium and titanium) and fiber reinforced polymer composites. In some of these research projects, CLAMP faculty have collaborated with industry partners and students have used the research facilities at industry locations. The specific objectives of the project during the current funding period (2005 – 2012) were as follows: (1) develop new graduate courses and incorporate them in the automotive systems engineering curriculum (2) improve and update two existing courses on automotive materials and processing (3) upgrade the laboratory facilities used by graduate students to conduct research (4) expand the Lightweight Automotive Materials Database to include additional materials, design case studies and make it more accessible to outside users (5) provide support to graduate students for conducting research on lightweight automotive materials and structures (6) provide industry/university interaction through a graduate certificate program on automotive materials and technology idea exchange through focused seminars and symposia on automotive materials.

  5. The High-Resolution Lightweight Telescope for the EUV (HiLiTE)

    SciTech Connect (OSTI)

    Martinez-Galarce, D S; Boerner, P; Soufli, R; De Pontieu, B; Katz, N; Title, A; Gullikson, E M; Robinson, J C; Baker, S L

    2008-06-02

    The High-resolution Lightweight Telescope for the EUV (HiLiTE) is a Cassegrain telescope that will be made entirely of Silicon Carbide (SiC), optical substrates and metering structure alike. Using multilayer coatings, this instrument will be tuned to operate at the 465 {angstrom} Ne VII emission line, formed in solar transition region plasma at {approx}500,000 K. HiLiTE will have an aperture of 30 cm, angular resolution of {approx}0.2 arc seconds and operate at a cadence of {approx}5 seconds or less, having a mass that is about 1/4 that of one of the 20 cm aperture telescopes on the Atmospheric Imaging Assembly (AIA) instrument aboard NASA's Solar Dynamics Observatory (SDO). This new instrument technology thus serves as a path finder to a post-AIA, Explorer-class missions.

  6. Internal curing with lightweight aggregate produced from biomass-derived waste

    SciTech Connect (OSTI)

    Lura, Pietro; Wyrzykowski, Mateusz; Tang, Clarence; Lehmann, Eberhard

    2014-05-01

    Shrinkage of concrete may lead to cracking and ultimately to a reduction of the service life of concrete structures. Among known methods for shrinkage mitigation, internal curing with porous aggregates was successfully utilized in the last couple of decades for decreasing autogenous and drying shrinkage. In this paper, the internal curing performance of pre-saturated lightweight aggregates produced from biomass-derived waste (bio-LWA) was studied. In the first part of this paper, the microstructure of the bio-LWA is investigated, with special focus on their pore structure and on their water absorption and desorption behavior. The bio-LWA has large porosity and coarse pore structure, which allows them to release the entrained water at early age and counteract self-desiccation and autogenous shrinkage. In the second part, the efficiency of internal curing in mortars incorporating the bio-LWA is examined by neutron tomography, internal relative humidity and autogenous deformation measurements.

  7. High-Temperature, Air-Cooled Traction Drive Inverter Packaging...

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

    Temperature, Air-Cooled Traction Drive Inverter Packaging High-Temperature, Air-Cooled Traction Drive Inverter Packaging 2010 DOE Vehicle Technologies and Hydrogen Programs Annual...

  8. US DRIVE Electrochemical Energy Storage Technical Team Roadmap...

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

    Electrochemical Energy Storage Technical Team Roadmap US DRIVE Electrochemical Energy Storage Technical Team Roadmap This U.S. DRIVE electrochemical energy storage roadmap...

  9. Countries Launch Initiative to Drive Energy Efficiency in the...

    Office of Environmental Management (EM)

    Countries Launch Initiative to Drive Energy Efficiency in the Commercial and Industrial Sectors Countries Launch Initiative to Drive Energy Efficiency in the Commercial and...

  10. How Exhaust Emissions Drive Diesel Engine Fuel Efficiency | Department...

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

    How Exhaust Emissions Drive Diesel Engine Fuel Efficiency How Exhaust Emissions Drive Diesel Engine Fuel Efficiency 2004 Diesel Engine Emissions Reduction (DEER) Conference...

  11. Strategies for Marketing and Driving Demand for Commercial Financing...

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

    Strategies for Marketing and Driving Demand for Commercial Financing Products Strategies for Marketing and Driving Demand for Commercial Financing Products Better Buildings...

  12. Improving Motor and Drive System Performance - A Sourcebook for...

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

    sourcebook outlines opportunities to improve motor and drive systems performance. The sourcebook is divided into four main sections: Motor and Drive System Basics: Summarizes...

  13. Computer-Aided Engineering for Electric Drive Vehicle Batteries...

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

    Computer-Aided Engineering for Electric Drive Vehicle Batteries (CAEBAT) Computer-Aided Engineering for Electric Drive Vehicle Batteries (CAEBAT) 2011 DOE Hydrogen and Fuel Cells...

  14. Electric Drive Component Manufacturing: Magna E-Car Systems of...

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

    More Documents & Publications Electric Drive Component Manufacturing: Magna E-Car Systems of America, Inc. Electric Drive Component Manufacturing: Magna E-Car Systems of...

  15. Defining Real World Drive Cycles to Support APRF Technology Evaluation...

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

    Real World Drive Cycles to Support APRF Technology Evaluations Defining Real World Drive Cycles to Support APRF Technology Evaluations 2012 DOE Hydrogen and Fuel Cells Program and...

  16. High-Voltage Solid Polymer Batteries for Electric Drive Vehicles...

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

    Solid Polymer Batteries for Electric Drive Vehicles High-Voltage Solid Polymer Batteries for Electric Drive Vehicles 2012 DOE Hydrogen and Fuel Cells Program and Vehicle...

  17. Tips: Buying and Driving Fuel Efficient and Alternative Fuel...

    Office of Environmental Management (EM)

    & Fuel Vehicles & Fuels Tips: Buying and Driving Fuel Efficient and Alternative Fuel Vehicles Tips: Buying and Driving Fuel Efficient and Alternative Fuel Vehicles...

  18. Airlines & Aviation Alternative Fuels: Our Drive to Be Early...

    Energy Savers [EERE]

    Airlines & Aviation Alternative Fuels: Our Drive to Be Early Market Adopters Airlines & Aviation Alternative Fuels: Our Drive to Be Early Market Adopters Plenary III: Early Market...

  19. Heavy Duty & Medium Duty Drive Cycle Data Collection for Modeling...

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

    Heavy Duty & Medium Duty Drive Cycle Data Collection for Modeling Expansion Heavy Duty & Medium Duty Drive Cycle Data Collection for Modeling Expansion 2009 DOE Hydrogen Program...

  20. Light-Duty Reactivity Controlled Compression Ignition Drive Cycle...

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

    Light-Duty Reactivity Controlled Compression Ignition Drive Cycle Fuel Economy and Emissions Estimates Light-Duty Reactivity Controlled Compression Ignition Drive Cycle Fuel...

  1. Electric Drive and Advanced Battery and Components Testbed (EDAB...

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

    vss033carlson2011o.pdf More Documents & Publications Electric Drive and Advanced Battery and Components Testbed (EDAB) Electric Drive and Advanced Battery and Components...

  2. Rim-drive cable-aligned heliostat collector system

    DOE Patents [OSTI]

    Dolan, J.E.; Sands, T.D.

    1982-09-30

    Disclosed is a heliostat collector apparatus comprising at least one heliostat suspended from a plurality of longitudinally extending linkage means. An enclosure structure is disposed adjacent the heliostat and provides a means for allowing the heliostat to be substantially protected from weathering. A first drive means is operatively connected to the heliostat to effect steering thereof in at least one of first and second predetermined directions. Finally, a frame member is adapted for supporting the heliostat at an inner portion thereof. The frame includes a plurality of outer expandable portions. Each one of the expandable portions is adapted to slidably engage a corresponding one of the plurality of linkage means. The expandable portions are further adapted to allow the heliostat to be slidably moved along the linkage means in directions away from and towards the enclosure structure and to substantially reduce stress acting on the heliostat during steering.

  3. Virtual Driving and Eco-Simulation VR City Modeling, Drive Simulation, and Ecological Habits

    E-Print Network [OSTI]

    @asu.edu Keywords: Drive Simulation, Traffic Visualization, Virtual Reality, Driving Behavior, Vehicle Emissions behavior, and vehicle emissions. The project is a part of an interdisciplinary multi- year academic Simulator is illustrated. A research study of driver behavior and vehicle emissions is detailed. Next

  4. Directives System

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

    1998-01-30

    The Department of Energy (DOE) Directives System is the means by which DOE policies, requirements, and responsibilities are developed and communicated throughout the Department. Directives are used to inform, direct, and guide employees in the performance of their jobs, and to enable employees to work effectively within the Department and with agencies, contractors, and the public. Cancels: DOE O 251.1, DOE M 251.1-1

  5. Gears and belt drives for non-uniform transmission

    E-Print Network [OSTI]

    Nawratil, Georg

    Gears and belt drives for non-uniform transmission Hellmuth Stachel stachel of gearing 2. Non-uniform belt drives 3. On the existence of strict non-uniform belt drives EUCOMES08. Finsterwalder's principle of gearing The driving wheel 1 rotates about O1 through 1, the out-put wheel 2 rotates

  6. CX-006449: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    A Lightweight, Direct Drive, Fully Superconducting Generator for Large Wind TurbinesCX(s) Applied: A9Date: 08/11/2011Location(s): FloridaOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  7. CX-009148: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    A Lightweight, Direct Drive, Fully Superconducting Generator for Large Wind Turbines CX(s) Applied: A9 Date: 09/11/2012 Location(s): Florida Offices(s): Golden Field Office

  8. CX-009541: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    A Lightweight, Direct Drive, Fully Superconducting Generator for Large Wind Turbines CX(s) Applied: B3.6 Date: 11/14/2012 Location(s): Florida Offices(s): Golden Field Office

  9. Modular axial-flux permanent-magnet motor for ship propulsion drives

    SciTech Connect (OSTI)

    Caricchi, F.; Crescimbini, F.; Honorati, O.

    1999-09-01

    Original features such as compactness and lightness make slotless axial-flux permanent-magnet machines (AFPMs) eligible for application in large power motor drives devoted to the direct drive of ship propellers. This paper discusses characteristics of AFPMs designed for application in marine propulsion, and machine performances such as efficiency, weight and torque density are evaluated for a comparison with those of conventional synchronous machines. A newly-conceived modular arrangement of the machine stator winding is proposed and experimental results taken from a small-size machine prototype are finally shown.

  10. Flow Cytometry Laboratory 7703 Floyd Curl Drive

    E-Print Network [OSTI]

    Nicholson, Bruce J.

    Flow Cytometry Laboratory 7703 Floyd Curl Drive San Antonio, Tx. 78229 Customer Satisfaction Survey Dear UTHSCSA Flow Cytometry Laboratory User: As a College of American Pathologist (CAP) accredited Laboratory, the UTHSCSA Flow Cytometry Laboratory is sending this survey to our client as an aid in our

  11. Oscillation control system for electric motor drive

    DOE Patents [OSTI]

    Slicker, James M. (Union Lake, MI); Sereshteh, Ahmad (Union Lake, MI)

    1988-01-01

    A feedback system for controlling mechanical oscillations in the torsionally complaint drive train of an electric or other vehicle. Motor speed is converted in a processor to estimate state signals in which a plant model which are used to electronically modify thetorque commands applied to the motor.

  12. Cost of transitionless driving and work output

    E-Print Network [OSTI]

    Yuanjian Zheng; Steve Campbell; Gabriele De Chiara; Dario Poletti

    2015-09-07

    Unitary processes allow for the transfer of work to and from Hamiltonian systems. However, to achieve non-zero power for the practical extraction of work, these processes must be performed within a finite-time, which inevitably induces excitations in the system. We characterize this by introducing a measure that indicates the need for an external driving to preserve quantum adiabaticity. We show that depending on the time-scale of the process and the physical realization of the external driving employed, the use of transitionless quantum driving (TQD) to extract more work is not always effective. Furthermore, by virtue of the two-time energy measurement definition of quantum work, we also demonstrate that the cost of TQD can be significantly reduced by selecting a restricted form of the driving Hamiltonian that depends on the outcome of the first energy measurement. We apply our analysis to systems ranging from a two-level Landau-Zener problem to a many-body quantum Ising chain.

  13. Oscillation control system for electric motor drive

    DOE Patents [OSTI]

    Slicker, J.M.; Sereshteh, A.

    1988-08-30

    A feedback system for controlling mechanical oscillations in the torsionally complaint drive train of an electric or other vehicle. Motor speed is converted in a processor to estimate state signals in which a plant model which are used to electronically modify the torque commands applied to the motor. 5 figs.

  14. What drives option prices? Frdric Abergel1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . The study reveals that while the modeling of stochastic volatility gives more robust models, the market does 2 Theoretical framework 4 3 Intraday joint dynamics of option and underlying prices 5 3.1 EppsWhat drives option prices? Frédéric Abergel1 and Riadh Zaatour2 Chair of Quantitative Finance Ecole

  15. Modeling and Driving Piezoelectric Resonant Blade Elements

    E-Print Network [OSTI]

    Modeling and Driving Piezoelectric Resonant Blade Elements Sam Ben-Yaakov* and Natan Krihely Power@ee.bgu.ac.il ; Website: http://www.ee.bgu.ac.il/~pel Abstract-- Piezoelectric Resonant Blade elements (PRB) are useful in applications such as light choppers, laser beam scanners, fans and others. Three methods are proposed

  16. What's Driving Oil Prices? James L. Smith

    E-Print Network [OSTI]

    O'Donnell, Tom

    1 What's Driving Oil Prices? James L. Smith Cary M. Maguire Chair in Oil & Gas Management Critical Issues in Energy Federal Reserve Bank of Dallas November 2, 2006 The Price of OPEC Oil ($/bbl) $0 $20 $40 $60 $80 1970 1975 1980 1985 1990 1995 2000 2005 Real Price ($2005) #12;2 Hubbert's Curve (Peak Oil

  17. The Application Hosting Environment: Lightweight Middleware for Grid-Based Computational Science

    E-Print Network [OSTI]

    P. V. Coveney; R. S. Saksena; S. J. Zasada; M. McKeown; S. Pickles

    2006-11-27

    Grid computing is distributed computing performed transparently across multiple administrative domains. Grid middleware, which is meant to enable access to grid resources, is currently widely seen as being too heavyweight and, in consequence, unwieldy for general scientific use. Its heavyweight nature, especially on the client-side, has severely restricted the uptake of grid technology by computational scientists. In this paper, we describe the Application Hosting Environment (AHE) which we have developed to address some of these problems. The AHE is a lightweight, easily deployable environment designed to allow the scientist to quickly and easily run legacy applications on distributed grid resources. It provides a higher level abstraction of a grid than is offered by existing grid middleware schemes such as the Globus Toolkit. As a result the computational scientist does not need to know the details of any particular underlying grid middleware and is isolated from any changes to it on the distributed resources. The functionality provided by the AHE is `application-centric': applications are exposed as web services with a well-defined standards-compliant interface. This allows the computational scientist to start and manage application instances on a grid in a transparent manner, thus greatly simplifying the user experience. We describe how a range of computational science codes have been hosted within the AHE and how the design of the AHE allows us to implement complex workflows for deployment on grid infrastructure.

  18. Advanced high-temperature lightweight foamed cements for geothermal well completions

    SciTech Connect (OSTI)

    Sugama, T.; Kukacka, L.E.; Galen, B.G.

    1986-04-01

    Foamed cement slurries that were prepared by mixing a cementitious material having a Class H cement-to-silica flour ratio of 1.0 in conjunction with a alpha-olefin sulfate foam surfactant and a coconut diethanolamide foam stabilizer were exposed in an autoclave at a temperature of 300/sup 0/C and a hydrostatic pressure of 2000 psi (13.79 MPa). One lightweight slurry having a density of 9.61 lb/gal (1.15 g/cc) yielded a cellular cement having a compressive strength at 24 hr of >1000 psi (6.9 MPa) and a water permeability of approx.10/sup -3/ darcys. The factors responsible for the attainment of these mechanical and physical properties were identified to be well-crystallized truscottite phases and a uniform distribution of discrete fine bubbles. The addition of graphite fiber reinforcement for the cement matrix significantly suppressed any segregation of foam caused by thermal expansion of the air bubbles and further improved the mechanical characteristics of the cured cements.

  19. A High Resolution, Light-Weight, Synthetic Aperture Radar for UAV Application

    SciTech Connect (OSTI)

    Doerry, A.W.; Hensley, W.H.; Stence, J.; Tsunoda, S.I. Pace, F.; Walker, B,C.; Woodring, M.

    1999-05-27

    (U) Sandia National Laboratories in collaboration with General Atomics (GA) has designed and built a high resolution, light-weight, Ku-band Synthetic Aperture Radar (SAR) known as "Lynx". Although Lynx can be operated on a wide variety of manned and unmanned platforms, its design is optimized for use on medium altitude Unmanned Aerial Vehicles (UAVS). In particular, it can be operated on the Predator, I-GNAT, and Prowler II platforms manufactured by GA. (U) The radar production weight is less than 120 lb and operates within a 3 GHz band from 15.2 GHz to 18.2 GHz with a peak output power of 320 W. Operating range is resolution and mode dependent but can exceed 45 km in adverse weather (4 mm/hr rain). Lynx has operator selectable resolution and is capable of 0.1 m resolution in spotlight mode and 0.3 m resolution in stripmap mode, over substantial depression angles (5 to 60 deg) and squint angles (broadside ±45 deg). Real-time Motion Compensation is implemented to allow high-quality image formation even during vehicle turns and other maneuvers.

  20. Drive piston assembly for a valve actuator assembly

    DOE Patents [OSTI]

    Sun, Zongxuan (Troy, MI)

    2010-02-23

    A drive piston assembly is provided that is operable to selectively open a poppet valve. The drive piston assembly includes a cartridge defining a generally stepped bore. A drive piston is movable within the generally stepped bore and a boost sleeve is coaxially disposed with respect to the drive piston. A main fluid chamber is at least partially defined by the generally stepped bore, drive piston, and boost sleeve. First and second feedback chambers are at least partially defined by the drive piston and each are disposed at opposite ends of the drive piston. At least one of the drive piston and the boost sleeve is sufficiently configured to move within the generally stepped bore in response to fluid pressure within the main fluid chamber to selectively open the poppet valve. A valve actuator assembly and engine are also provided incorporating the disclosed drive piston assembly.

  1. Directives Help

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

    All DOE directives are available through this site. While it may seem overwhelming, given the number of documents, we have provided a number of ways in which you may get to the information you need.

  2. Integrated Inverter For Driving Multiple Electric Machines

    DOE Patents [OSTI]

    Su, Gui-Jia [Knoxville, TN; Hsu, John S [Oak Ridge, TN

    2006-04-04

    An electric machine drive (50) has a plurality of inverters (50a, 50b) for controlling respective electric machines (57, 62), which may include a three-phase main traction machine (57) and two-phase accessory machines (62) in a hybrid or electric vehicle. The drive (50) has a common control section (53, 54) for controlling the plurality of inverters (50a, 50b) with only one microelectronic processor (54) for controlling the plurality of inverters (50a, 50b), only one gate driver circuit (53) for controlling conduction of semiconductor switches (S1-S10) in the plurality of inverters (50a, 50b), and also includes a common dc bus (70), a common dc bus filtering capacitor (C1) and a common dc bus voltage sensor (67). The electric machines (57, 62) may be synchronous machines, induction machines, or PM machines and may be operated in a motoring mode or a generating mode.

  3. Heating and current drive systems for TPX

    SciTech Connect (OSTI)

    Swain, D.; Goranson, P.; Halle, A. von; Bernabei, S.; Greenough, N.

    1994-05-24

    The heating and current drive (H and CD) system proposed for the TPX tokamak will consist of ion cyclotron, neutral beam, and lower hybrid systems. It will have 17.5 MW of installed H and CD power initially, and can be upgraded to 45 MW. It will be used to explore advanced confinement and fully current-driven plasma regimes with pulse lengths of up to 1,000 s.

  4. Traction Drive Systems Breakout | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaicsState ofSavings forTitle XVIIofTracers andTraction Drive

  5. Indianapolis Offers a Lesson on Driving Demand | Department of...

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

    Indianapolis Offers a Lesson on Driving Demand Indianapolis Offers a Lesson on Driving Demand The flier for EcoHouse, with the headline 'Save energy, save money, improve your home'...

  6. An Optimization Model for Eco-Driving at Signalized Intersection 

    E-Print Network [OSTI]

    Chen, Zhi

    2013-07-15

    This research develops an optimization model for eco-driving at signalized intersection. In urban areas, signalized intersections are the “hot spots” of air emissions and have significant negative environmental and health impacts. Eco-driving is a...

  7. Secrets of the Motor That Drives Archaea Revealed

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

    Secrets of the Motor That Drives Archaea Revealed Secrets of the Motor That Drives Archaea Revealed Print Thursday, 14 February 2013 00:00 An international team led by John Tainer...

  8. Energy Department Announces $53 Million to Drive Innovation,...

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

    53 Million to Drive Innovation, Cut Cost of Solar Power Energy Department Announces 53 Million to Drive Innovation, Cut Cost of Solar Power October 22, 2014 - 1:15am Addthis News...

  9. Fast shadow detection for urban autonomous driving applications

    E-Print Network [OSTI]

    Park, Sooho

    This paper presents shadow detection methods for vision-based autonomous driving in an urban environment. Shadows misclassified as objects create problems in autonomous driving applications. Real-time efficient algorithms ...

  10. Energy Department Announces New Prize Challenge to Drive Down...

    Office of Environmental Management (EM)

    Prize Challenge to Drive Down Solar Costs Energy Department Announces New Prize Challenge to Drive Down Solar Costs May 20, 2014 - 12:34pm Addthis To kick off the SunShot...

  11. Utilizing the Traction Drive Power Electronics System to Provide...

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

    Traction Drive Power Electronics System to Provide Plug-in Capability for PHEVs Utilizing the Traction Drive Power Electronics System to Provide Plug-in Capability for PHEVs 2009...

  12. How to Avoid Overestimating Variable Speed Drive Savings 

    E-Print Network [OSTI]

    Maxwell, J. B.

    2005-01-01

    of Magnetically Coupled Adjustable Speed Drive Systems, Pacific Northwest National Laboratory, PNNL-13879, June 2002. 9. Electric Power Research Institute, Title and date unknown, PR I966-241, as cited in "Adjustable Speed Drives" section of "Industrial...

  13. Fact #759: December 24, 2012 Rural vs. Urban Driving Differences

    Broader source: Energy.gov [DOE]

    According to the National Household Travel Survey, those living in rural areas drive ten more miles in a day than those who live in cities. People living in the suburbs drive only about three to...

  14. DVM Admissions Office (0442) 245 Duck Pond Drive

    E-Print Network [OSTI]

    DVM Admissions Office (0442) 245 Duck Pond Drive Blacksburg, VA 24061 Phone: 540-231-4699 Fax: 540 June 30, 2016 #12;DVM Admissions Office (0442) 245 Duck Pond Drive Blacksburg, VA 24061 Phone: 540

  15. Economical Aspects of Adjustable Speed Drives in Pumping Systems 

    E-Print Network [OSTI]

    Hovstadius, G.

    1999-01-01

    Speed variations of pumps have become increasingly popular as the technology to produce variable frequency drives has progressed. Variable speed drives have many advantages compared to throttle valves when it comes to regulation of flow. They offer...

  16. DRIVE(tm) Mobile App | Open Energy Information

    Open Energy Info (EERE)

    handle all of the details related to sending incentives, provide real time status of offer accepts, and validate points earned. The DRIVE System includes the DRIVE App as a fun...

  17. Innovative Structural and Joining Concepts for Lightweight Design of Heavy Vehicle Systems

    SciTech Connect (OSTI)

    Jacky C. Prucz; Samir N. Shoukry; Gergis W. William

    2005-08-31

    Recent advances in the area of Metal Matrix Composites (MMC's) have brought these materials to a maturity stage where the technology is ready for transition to large-volume production and commercialization. The new materials seem to allow the fabrication of higher quality parts at less than 50 percent of the weight as compared to steel, especially when they are selectively reinforced with carbon, silicon carbide, or aluminum oxide fibers. Most of the developments in the MMC materials have been spurred, mainly by applications that require high structural performance at elevated temperatures, the heavy vehicle industry could also benefit from this emerging technology. Increasing requirements of weight savings and extended durability are the main drivers for potential insertion of MMC technology into the heavy vehicle market. Critical elements of a typical tractor-trailer combination, such as highly loaded sections of the structure, engine components, brakes, suspensions, joints and bearings could be improved through judicious use of MMC materials. Such an outcome would promote the DOE's programmatic objectives of increasing the fuel efficiency of heavy vehicles and reducing their life cycle costs and pollution levels. However, significant technical and economical barriers are likely to hinder or even prevent broad applications of MMC materials in heavy vehicles. The tradeoffs between such expected benefits (lower weights and longer durability) and penalties (higher costs, brittle behavior, and difficult to machine) must be thoroughly investigated both from the performance and cost viewpoints, before the transfer of MMC technology to heavy vehicle systems can be properly assessed and implemented. MMC materials are considered to form one element of the comprehensive, multi-faceted strategy pursued by the High Strength/Weight Reduction (HS/WR) Materials program of the U.S. Department of Energy (DOE) for structural weight savings and quality enhancements in heavy vehicles. The research work planed for the first year of this project (June 1, 2003 through May 30, 2004) focused on a theoretical investigation of weight benefits and structural performance tradeoffs associated with the design, fabrication, and joining of MMC components for heavy-duty vehicles. This early research work conducted at West Virginia University yielded the development of integrated material-structural models that predicted marginal benefits and significant barriers to MMC applications in heavy trailers. The results also indicated that potential applications of MMC materials in heavy vehicles are limited to components identified as critical for either loadings or weight savings. Therefore, the scope of the project was expanded in the following year (June 1, 2004 through May 30, 2005) focused on expanding the lightweight material-structural design concepts for heavy vehicles from the component to the system level. Thus, the following objectives were set: (1) Devise and evaluate lightweight structural configurations for heavy vehicles. (2) Study the feasibility of using Metal Matrix Composites (MMC) for critical structural components and joints in heavy vehicles. (3) Develop analysis tools, methods, and validated test data for comparative assessments of innovative design and joining concepts. (4) Develop analytical models and software for durability predictions of typical heavy vehicle components made of particulate MMC or fiber-reinforced composites. This report summarizes the results of the research work conducted during the past two years in this projects.

  18. Current Drive in a Ponderomotive Potential with Sign Reversal

    SciTech Connect (OSTI)

    N.J. Fisch; J.M. Rax; I.Y. Dodin

    2003-07-30

    Noninductive current drive can be accomplished through ponderomotive forces with high efficiency when the potential changes sign over the interaction region. The effect can practiced upon both ions and electrons. The current drive efficiencies, in principle, might be higher than those possible with conventional radio-frequency current-drive techniques, since different considerations come into play.

  19. Gears and Belt Drives for Non-Uniform Transmission

    E-Print Network [OSTI]

    Nawratil, Georg

    Gears and Belt Drives for Non-Uniform Transmission Hellmuth Stachel Abstract Ordinarily, gears and belt drives are used for uniform transmission of rotations between parallel axes. Here we focus. Concerning belt drives, we study their relation to tooth profiles and focus on `strict' cases which work

  20. Medium Truck Duty Cycle Data from Real-World Driving Environments: Final Report

    SciTech Connect (OSTI)

    Lascurain, Mary Beth; Franzese, Oscar; Capps, Gary J; Siekmann, Adam; Thomas, Neil; LaClair, Tim J; Barker, Alan M; Knee, Helmut E

    2012-11-01

    Since the early part of the 20th century, the US trucking industry has provided a safe and economical means of moving commodities across the country. At present, nearly 80% of US domestic freight movement involves the use of trucks. The US Department of Energy (DOE) is spearheading a number of research efforts to improve heavy vehicle fuel efficiencies. This includes research in engine technologies (including hybrid and fuel cell technologies), lightweight materials, advanced fuels, and parasitic loss reductions. In addition, DOE is developing advanced tools and models to support heavy vehicle research and is leading the 21st Century Truck Partnership and the SuperTruck development effort. Both of these efforts have the common goal of decreasing the fuel consumption of heavy vehicles. In the case of SuperTruck, a goal of improving the overall freight efficiency of a combination tractor-trailer has been established. This Medium Truck Duty Cycle (MTDC) project is a critical element in DOE s vision for improved heavy vehicle energy efficiency; it is unique in that there is no other existing national database of characteristic duty cycles for medium trucks based on collecting data from Class 6 and 7 vehicles. It involves the collection of real-world data on medium trucks for various situational characteristics (e.g., rural/urban, freeway/arterial, congested/free-flowing, good/bad weather) and looks at the unique nature of medium trucks drive cycles (stop-and-go delivery, power takeoff, idle time, short-radius trips). This research provides a rich source of data that can contribute to the development of new tools for FE and modeling, provide DOE a sound basis upon which to make technology investment decisions, and provide a national archive of real-world-based medium-truck operational data to support energy efficiency research. The MTDC project involved a two-part field operational test (FOT). For the Part-1 FOT, three vehicles each from two vocations (urban transit and dry-box delivery) were instrumented for the collection of one year of operational data. The Part-2 FOT involved the towing and recovery and utility vocations for a second year of data collection. The vehicles that participated in the MTDC project did so through gratis partnerships in return for early access to the results of this study. Partnerships such as these are critical to FOTs in which real-world data is being collected. In Part 1 of the project, Oak Ridge National Laboratory (ORNL) established partnerships with the H.T. Hackney Company (HTH), one of the largest wholesale distributors in the country, distributing products to 21 states; and with Knoxville Area Transit (KAT), the city of Knoxville s transit system, which operates across Knoxville and parts of Knox County. These partnerships and agreements provided ORNL access to three Class-7 day-cab tractors that regularly haul 28 ft pup trailers (HTH) and three Class-7 buses for the collection of duty cycle data. In addition, ORNL collaborated with the Federal Motor Carrier Safety Administration (FMCSA) to determine if there were possible synergies between this duty cycle data collection effort and FMCSA s need to learn more about the operation and duty cycles of medium trucks. FMCSA s primary interest was in collecting safety data relative to the driver, carrier, and vehicle. In Part 2 of the project, ORNL partnered with the Knoxville Utilities Board, which made available three Class-8 trucks. Fountain City Wrecker Service was also a Part 2 partner, providing three Class-6 rollback trucks. In order to collect the duty cycle and safety-related data, ORNL developed a data acquisition system (DAS) that was placed on each test vehicle. Each signal recorded in this FOT was collected by means of one of the instruments incorporated into each DAS. Other signals were obtained directly from the vehicle s J1939 and J1708 data buses. A VBOX II Lite collected information available from a global positioning system (GPS), including speed, acceleration, and spatial location information at a rate of 5 Hz for the Part 1

  1. Medium Truck Duty Cycle Data from Real-World Driving Environments: Project Interim Report

    SciTech Connect (OSTI)

    Franzese, Oscar [ORNL; Lascurain, Mary Beth [ORNL; Capps, Gary J [ORNL

    2011-01-01

    Since the early part of the 20th century, the US trucking industry has provided a safe and economical means of moving commodities across the country. At the present time, nearly 80% of the US domestic freight movement involves the use of trucks. The US Department of Energy (DOE) is spearheading a number of research efforts to improve heavy vehicle fuel efficiencies. This includes research in engine technologies (including hybrid and fuel cell technologies), lightweight materials, advanced fuels, and parasitic loss reductions. In addition, DOE is developing advanced tools and models to support heavy vehicle truck research, and is leading the 21st Century Truck Partnership whose stretch goals involve a reduction by 50% of the fuel consumption of heavy vehicles on a ton-mile basis. This Medium Truck Duty Cycle (MTDC) Project is a critical element in DOE s vision for improved heavy vehicle energy efficiency and is unique in that there is no other national database of characteristic duty cycles for medium trucks. It involves the collection of real-world data for various situational characteristics (rural/urban, freeway/arterial, congested/free-flowing, good/bad weather, etc.) and looks at the unique nature of medium trucks drive cycles (stop-and-go delivery, power takeoff, idle time, short-radius trips), to provide a rich source of data that can contribute to the development of new tools for fuel efficiency and modeling, provide DOE a sound basis upon which to make technology investment decisions, and provide a national archive of real-world-based medium-truck operational data to support heavy vehicle energy efficiency research. The MTDC project involves a two-part field operational test (FOT). For the Part-1 FOT, three vehicles, each from two vocations (urban transit and dry-box delivery) were instrumented for one year of data collection. The Part-2 FOT will involve the towing/recovery and utility vocations. The vehicles participating in the MTDC project are doing so through gratis partnerships in return for early access to the results of this study. Partnerships such as these are critical to FOTs in which real-world data is being collected. In Part 1 of the project, Oak Ridge National Laboratory(ORNL) established partnerships with the H.T. Hackney Company, one of the largest wholesale distributors in the country, distributing products to 21 states; and with the Knoxville Area Transit (KAT), the City of Knoxville s transit system, operating services across the city of Knoxville and parts of Knox co. These partnerships and agreements provided ORNL access to three Class-7 2005/2007 International day-cab tractors, model 8600, which regularly haul 28 ft pup trailers (H.T. Hackney Co) and three Class-7 2005 Optima LF-34 buses (KAT), for collection of duty cycle data. In addition, ORNL has collaborated with the Federal Motor Carrier Safety Administration (FMCSA) to determine if there were possible synergies between this duty cycle data collection effort and FMCSA s need to learn more about the operation and duty cycles of the second-largest fuel consuming commercial vehicle category in the US. FMCSA s primary interest was in collecting safety data relative to the driver, carrier, and vehicle. In order to collect the duty cycle and safety-related data, ORNL developed a data acquisition and wireless communication system that was placed on each test vehicle. Each signal recorded in this FOT was collected by means of one of the instruments incorporated into each data acquisition system (DAS). Native signals were obtained directly from the vehicle s J1939 and J1708 data buses. A VBOX II Lite collected Global Positioning System related information including speed, acceleration, and spatial location information at a rate of 5 Hz, and communicated this data via the CAN (J1939) protocol. The Air-Weigh LoadMaxx, a self-weighing system which determines the vehicle s gross weight by means of pressure transducers and posts the weight to the vehicle s J1939 data bus, was used to collect vehicle payload information. A cellular modem, the Raven X

  2. Comparing Two Types of Magnetically- Coupled Adjustable Speed Drives with Variable Frequency Drives in Pump and Fan Applications 

    E-Print Network [OSTI]

    Anderson, K. J.; Chvala, W. D.

    2003-01-01

    This paper presents the results from laboratory tests on MagnaDrive Corporations fixed-magnet magnetically-coupled adjustable speed drive (MC-ASD) and Coyote Electronics electromagnetic MC-ASD as compared to a typical variable frequency drive (VFD...

  3. Oscillatory nonohomic current drive for maintaining a plasma current

    DOE Patents [OSTI]

    Fisch, N.J.

    1984-01-01

    Apparatus and methods are described for maintaining a plasma current with an oscillatory nonohmic current drive. Each cycle of operation has a generation period in which current driving energy is applied to the plasma, and a relaxation period in which current driving energy is removed. Plasma parameters, such as plasma temperature or plasma average ionic charge state, are modified during the generation period so as to oscillate plasma resistivity in synchronism with the application of current driving energy. The invention improves overall current drive efficiencies.

  4. Improving Motor and Drive System Performance – A Sourcebook for Industry

    SciTech Connect (OSTI)

    2014-02-01

    This sourcebook outlines opportunities to improve motor and drive systems performance. The sourcebook is divided into four main sections: (1) Motor and Drive System Basics: Summarizes important terms, relationships, and system design considerations relating to motor and drive systems. (2) Performance Opportunity Road Map: Details the key components of well-functioning motor and drive systems and opportunities for energy performance opportunities. (3) Motor System Economics: Offers recommendations on how to propose improvement projects based on corporate priorities, efficiency gains, and financial payback periods. (4) Where to Find Help: Provides a directory of organizations associated with motors and drives, as well as resources for additional information, tools, software, videos, and training opportunities.

  5. Oscillatory nonhmic current drive for maintaining a plasma current

    DOE Patents [OSTI]

    Fisch, Nathaniel J. (Princeton, NJ)

    1986-01-01

    Apparatus and method of the invention maintain a plasma current with an oscillatory nonohmic current drive. Each cycle of operation has a generation period in which current driving energy is applied to the plasma, and a relaxation period in which current driving energy is removed. Plasma parameters, such as plasma temperature or plasma average ionic charge state, are modified during the generation period so as to oscillate plasma resistivity in synchronism with the application of current driving energy. The invention improves overall current drive efficiencies.

  6. Safe Tractor Operation: Driving on Highways 

    E-Print Network [OSTI]

    Smith, David

    2004-09-16

    of the car first notices the tractor while still 400 feet behind it, the driver has less than 10 seconds to avoid a collision with the tractor. In this time, the driver of the car must recognize the danger, determine the speed the tractor is traveling... the brakes, clutch and steering mechanisms, and often cannot see everything around them while sitting in the tractor seat. Don?t put your child in this dangerous situation. Chil- dren should never drive tractors on public roads. Extra Riders Except...

  7. SuperDrive Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-Enhancing CapacityVectren)Model for theSunLanSuperDrive Inc Jump to: navigation,

  8. National Drive Electric Week | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy AEnergy Managing SwimmingMicrosoft TheDepartmentNational Drive Electric Week

  9. Hyper Drive Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam:on Openei | Open Energy InformationHydrothermalDrive Ltd

  10. Electrifying Your Drive | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based|DepartmentStatementofAprilof Energy 2ofU.S.Electrifying Your Drive

  11. MASSACHUSETTS DRIVES PERFORMANCE MEASUREMENT | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested Parties - WAPA PublicLED1,400 Jobs |Inc. |EnergyMASSACHUSETTS DRIVES

  12. GenDrive Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavy ElectricalsFTL SolarGate Solar Jump to:GenDrive Limited Jump to:

  13. Driving the Future | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit theCovalentLaboratory |Sectorfor $1.14 Per Gallon Driving for $1.14

  14. Has Driving Come to a Halt?

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming Dry NaturalPrices1Markets See full Genealogy ofFederalHas Driving

  15. Google Drive for Work | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterFinancial OpportunitiesDepartment of Energy SmallGoogle Drive for

  16. Direct Frisk

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submit theCovalent BondingMeetingDifferences BetweenDirac ChargeSolarDirect

  17. Reliable, Lightweight Transmissions For Off-Shore, Utility Scale Wind Turbines

    SciTech Connect (OSTI)

    Jean-Claude Ossyra

    2012-10-25

    The objective of this project was to reduce the technical risk for a hydrostatic transmission based drivetrain for high-power utility-size wind turbines. A theoretical study has been performed to validate the reduction of cost of energy (CoE) for the wind turbine, identify risk mitigation strategies for the drive system and critical components, namely the pump, shaft connection and hydrostatic transmission (HST) controls and address additional benefits such as reduced deployment costs, improved torque density and improved mean time between repairs (MTBR).

  18. Performance Evaluation of a Cascaded H-Bridge Multi Level Inverter Fed BLDC Motor Drive in an Electric Vehicle 

    E-Print Network [OSTI]

    Emani, Sriram S.

    2011-08-08

    . The aim of this thesis is to demonstrate the use of a multi level inverter fed Brush Less Direct Current (BLDC) motor in a field oriented control fashion in an EV and make it follow a given drive cycle. The switching operation and control of a multi level...

  19. VIRTUAL REALITY DRIVING SIMULATION: Integrating Infrastructure Plans, Traffic Models, and Driving Behaviors

    E-Print Network [OSTI]

    to include 3D models, animated traffic and human characters, as well as functions that allow users to take-1- VIRTUAL REALITY DRIVING SIMULATION: Integrating Infrastructure Plans, Traffic Models@forum8.co.jp Summary: This paper presents a virtual reality (VR) system that enables large

  20. Electric-drive tractability indicator integrated in hybrid electric vehicle tachometer

    DOE Patents [OSTI]

    Tamai, Goro; Zhou, Jing; Weslati, Feisel

    2014-09-02

    An indicator, system and method of indicating electric drive usability in a hybrid electric vehicle. A tachometer is used that includes a display having an all-electric drive portion and a hybrid drive portion. The all-electric drive portion and the hybrid drive portion share a first boundary which indicates a minimum electric drive usability and a beginning of hybrid drive operation of the vehicle. The indicated level of electric drive usability is derived from at least one of a percent battery discharge, a percent maximum torque provided by the electric drive, and a percent electric drive to hybrid drive operating cost for the hybrid electric vehicle.

  1. Vehicle drive module having improved cooling configuration

    DOE Patents [OSTI]

    Radosevich, Lawrence D.; Meyer, Andreas A.; Kannenberg, Daniel G.; Kaishian, Steven C.; Beihoff, Bruce C.

    2007-02-13

    An electric vehicle drive includes a thermal support may receive one or more power electronic circuits. The support may aid in removing heat from the circuits through fluid circulating through the support. Power electronic circuits are thermally matched, such as between component layers and between the circuits and the support. The support may form a shield from both external EMI/RFI and from interference generated by operation of the power electronic circuits. Features may be provided to permit and enhance connection of the circuitry to external circuitry, such as improved terminal configurations. Modular units may be assembled that may be coupled to electronic circuitry via plug-in arrangements or through interface with a backplane or similar mounting and interconnecting structures.

  2. Simulations for CLIC Drive Beam Linac

    E-Print Network [OSTI]

    Avni Aksoy

    2012-02-25

    The Drive Beam Linac of the Compact Linear Collider (CLIC) has to accelerate an electron beam with 4.2 A up to 2.4 GeV in almost fully-loaded structures. The pulse contains about 70000 bunches, one in every second rf bucket, and has a length of 140 $\\mu$s. The beam stability along the beamline is of concern for such a high current and pulse length. We present different options for the lattice of the linac based on FODO, triplet and doublet cells and compare the transverse instability for each lattice including the effects of beam jitter, alignment and beam-based correction. Additionally longitudinal stability is discussed for different bunch compressors using FODO type of lattice.

  3. Traction drive automatic transmission for gas turbine engine driveline

    DOE Patents [OSTI]

    Carriere, Donald L. (Livonia, MI)

    1984-01-01

    A transaxle driveline for a wheeled vehicle has a high speed turbine engine and a torque splitting gearset that includes a traction drive unit and a torque converter on a common axis transversely arranged with respect to the longitudinal centerline of the vehicle. The drive wheels of the vehicle are mounted on a shaft parallel to the turbine shaft and carry a final drive gearset for driving the axle shafts. A second embodiment of the final drive gearing produces an overdrive ratio between the output of the first gearset and the axle shafts. A continuously variable range of speed ratios is produced by varying the position of the drive rollers of the traction unit. After starting the vehicle from rest, the transmission is set for operation in the high speed range by engaging a first lockup clutch that joins the torque converter impeller to the turbine for operation as a hydraulic coupling.

  4. A Light-weight Approach to Reducing Energy Management Delays in Disks Guanying Wang, Ali R. Butt, Chris Gniady, Puranjoy Bhattacharjee

    E-Print Network [OSTI]

    Butt, Ali R.

    A Light-weight Approach to Reducing Energy Management Delays in Disks Guanying Wang, Ali R. Butt techniques such as turning machines off overnight and dynamic energy management during the business hours. Unfortunately, dynamic energy management, especially that for disks, introduces delays when an accessed disk

  5. A FORMULA FOR EFFICIENCY OF FAST WAVE CURRENT DRIVE

    E-Print Network [OSTI]

    Karney, Charles

    A FORMULA FOR EFFICIENCY OF FAST WAVE CURRENT DRIVE IN FUSION DEVICES S.C. CHIU, C.F.F. KARNEY,* R://charles.karney.info/biblio/chiu92.html #12;Chiu e t al. 4 FORMULA FOR EFFICIENCY OF FAST WAVE CURRENT DRIVE IN FUSION DEVICES A FORMULA FOR EFFICIENCY OF FAST WAVE CURRENT DRIVE IN FUSION DEVICES* S.C. CHIU,C.F.F. KARNEY,~R.W. HARVEY

  6. A motor drive control system for the Lidar Polarimeter 

    E-Print Network [OSTI]

    Leung, Waiming

    1977-01-01

    A MOTOR DRIVE CONTROL SYSTEM FOR THE LIDAR POLARIMETER A Thesis by Waiming Leung Submitted to the Graduate College of Texas A/M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCF, May 1977 Major... Subject: Electrical Engineering A MOTOR DRIVE CONTROL SYSTEM FOR THE LIDAR POLARIMETER A Thesis by Waiming Leung Approved as to style and content by: Chairman o Comm' ee ea o epartment Member Mem er May 1977 ABSTRACT A Motor Drive Control...

  7. The Drive for Energy Diversity and Sustainability: The Impact...

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

    program - driving unleaded gasoline nationwide in US 1970: GM introduces no lead tolerant engines on all 1971 models in US & Canada 3 Transportation is a growth industry...

  8. Vehicle Technologies Office: U.S. DRIVE 2014 Technical Accomplishments...

    Office of Environmental Management (EM)

    Energy Storage R&D Annual Progress Report US DRIVE Electrochemical Energy Storage Technical Team Roadmap Vehicle Technologies Office: 2010 Energy Storage R&D Annual Progress Report...

  9. Adjustable-Speed Drives for 500 to 4000 Horsepower Industrial...

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

    thereby controlling the amount of torque transmitted. Eliminates the transmission of vibration across the drive due to the air gap configuration. Benefits Productivity Eliminates...

  10. Electric Drive Vehicle Level Control Development Under Various...

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

    Level Control Development Under Various Thermal Conditions Electric Drive Vehicle Level Control Development Under Various Thermal Conditions 2012 DOE Hydrogen and Fuel Cells...

  11. Strategies for Marketing and Driving Demand for Commercial Financing...

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

    Financing and Commercial Peer Exchange Call: Strategies for Marketing and Driving Demand for Commercial Financing Products, Call Slides and Discussion Summary, February 2, 2012....

  12. Using Partnerships to Drive Demand and Provide Services in Communities...

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

    Program Multifamily and Low-Income Peer Exchange Call: Using Partnerships to Drive Demand and Provide Services in Communities, February 2, 2012. Call Slides and Discussion...

  13. Better Buildings Residential Network Driving Demand Peer Exchange...

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

    Driving Demand Peer Exchange Call Series: Leveraging Holidays and Other Events Call Slides and Discussion Summary November 7, 2013 Agenda Call Logistics and Introductions ...

  14. X-Ray Microscopy Reveals How Crystal Mechanics Drive Battery...

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

    Microscopy Reveals How Crystal Mechanics Drive Battery Performance Print Rechargeable lithium-ion batteries power most portable electronics and are becoming more widely used in...

  15. Medium- and Heavy-Duty Electric Drive Vehicle Simulation and...

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

    Meeting vss043gonder2012o.pdf More Documents & Publications Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis Battery Pack Requirements and Targets...

  16. Factors driving wind power development in the United States

    E-Print Network [OSTI]

    Bird, Lori A.; Parsons, Brian; Gagliano, Troy; Brown, Matthew H.; Wiser, Ryan H.; Bolinger, Mark

    2003-01-01

    s Largest Purchase of Wind Power,” September 17, 2001.FACTORS DRIVING WIND POWER DEVELOPMENT IN THE UNITED STATESthe United States third in wind power capacity globally,

  17. Adaptive Rejection of Narrow Band Disturbance in Hard Disk Drives

    E-Print Network [OSTI]

    Zheng, Qixing

    2009-01-01

    on Advanced Intelligent Mechatronics, Monterey, CA, pp.13-C. Bi. Hard Disk Drive: Mechatronics and Control. CRC Press,new servo method in mechatronics. Trans. Of Japanese Society

  18. Phonon localization drives nanoregions in a relaxor ferroelectric...

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

    localization drives nanoregions in a relaxor ferroelectric April 11, 2014 This inelastic neutron scattering spectrum shows the localizing modes (LMs) between the transverse optic...

  19. Multi-function magnetic jack control drive mechanism

    DOE Patents [OSTI]

    Bollinger, L.R.; Crawford, D.C.

    1983-10-06

    A multi-function magnetic jack control drive mechanism for controlling a nuclear reactor is provided. The mechanism includes an elongate pressure housing in which a plurality of closely spaced drive rods are located. Each drive rod is connected to a rod which is insertable in the reactor core. An electromechanical stationary latch device is provided which is actuatable to hold each drive rod stationary with respect to the pressure housing. An electromechanical movable latch device is also provided for each one of the drive rods. Each movable latch device is provided with a base and is actuatable to hold a respective drive rod stationary with respect to the base. An electromechanical lift device is further provided for each base which is actuatable for moving a respective base longitudinally along the pressure housing. In this manner, one or more drive rods can be moved in the pressure housing by sequentially and repetitively operating the electromechanical devices. Preferably, each latch device includes a pair of opposed latches which grip teeth located on the respective drive rod. Two, three, or four drive rods can be located symmetrically about the longitudinal axis of the pressure housing.

  20. Multi-function magnetic jack control drive mechanism

    DOE Patents [OSTI]

    Bollinger, Lawrence R. (Schenectady, NY); Crawford, Donald C. (Scotia, NY)

    1986-01-01

    A multi-function magnetic jack control drive mechanism for controlling a nuclear reactor is provided. The mechanism includes an elongate pressure housing in which a plurality of closely spaced drive rods are located. Each drive rod is connected to a rod which is insertable in the reactor core. An electromechanical stationary latch device is provided which is actuatable to hold each drive rod stationary with respect to the pressure housing. An electromechanical movable latch device is also provided for each one of the drive rods. Each movable latch device is provided with a base and is actuatable to hold a respective drive rod stationary with respect to the base. An electromechanical lift device is further provided for each base which is actuatable for moving a respective base longitudinally along the pressure housing. In this manner, one or more drive rods can be moved in the pressure housing by sequentially and repetitively operating the electromechanical devices. Preferably, each latch device includes a pair of opposed latches which grip teeth located on the respective drive rod. Two, three, or four drive rods can be located symmetrically about the longitudinal axis of the pressure housing.

  1. Expected Technological Innovation to Drive Global Market for...

    Open Energy Info (EERE)

    systems in terms of various end use segments, which include industrial, commercial and residential markets for microturbines. The commercial end use segment is expected to drive...

  2. Energy Department Announces $60 Million to Drive Affordable,...

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

    SunShot Initiative is a collaborative national effort that aggressively drives innovation to make solar energy fully cost-competitive with traditional energy sources by...

  3. Energy Department Announces $19 Million to Drive Down Solar Soft...

    Office of Environmental Management (EM)

    Energy Department's broader SunShot Initiative investments that are driving down the cost of solar and making solar affordable for more American families and companies. Since...

  4. Solutia: Utilizing Sub-Metering to Drive Energy Project Approvals...

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

    plant. Solutia: Utilizing Sub-Metering to Drive Energy Project Approvals Through Data (July 2011) More Documents & Publications Nissan North America: How Sub-Metering...

  5. Hard Driving and Efficiency: iron production in 1890

    E-Print Network [OSTI]

    Berck, Peter

    1977-01-01

    hard driving or the Solvay process--was rational for British2) neglect of the Solvay process for producing soda was

  6. Incorporating solid state drives into distributed storage systems

    E-Print Network [OSTI]

    Wacha, Rosie

    2012-01-01

    27 Low Power Storage Systems . . . . . . . . . . . . . . .Drives into Distributed Storage Systems Rosie Wacha Big dataINTO DISTRIBUTED STORAGE SYSTEMS A dissertation submitted in

  7. Driving the National Parks Forward | Department of Energy

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

    Parks Forward Driving the National Parks Forward June 19, 2012 - 4:02pm Addthis Propane shuttle buses used to transport visitors at Mammoth Cave National Park. | Photo...

  8. EV Everywhere Electric Drive Workshop: Preliminary Target-Setting...

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

    given at the EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, 2012 held at the Doubletree O'Hare, Chicago, IL....

  9. EV Everywhere Grand Challenge Introduction for Electric Drive...

    Energy Savers [EERE]

    Danielson at the EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, 2012 held at the Doubletree O'Hare, Chicago, IL....

  10. EV Everywhere Grand Challenge - Electric Drive (Power Electronics...

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

    EV Everywhere EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop Agenda EV Everywhere Grand Challenge - Battery Workshop...

  11. EV Everywhere Workshop: Traction Drive Systems Breakout Group...

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

    7amarlinoed.pdf More Documents & Publications EV Everywhere - Charge to Breakout Sessions EV Everywhere Framing Workshop - Report Out & Lessons Learned Traction Drive Systems...

  12. Consider Steam Turbine Drives for Rotating Equipment, Energy...

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

    for Rotating Equipment Steam turbines are well suited as prime movers for driving boiler feedwater pumps, forced or induced-draft fans, blowers, air compressors, and other...

  13. Watch Energy Secretary Moniz Test Drive the Toyota Mirai

    Broader source: Energy.gov [DOE]

    The Energy Department posted a video of ?Secretary Ernest Moniz driving the Toyota Mirai, the first fuel cell electric vehicle (FCEV) for sale in the United States.

  14. Vehicle Technologies Office: U.S. DRIVE 2013 Technical Accomplishments...

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

    Report summarizes key technical accomplishments in the development of advanced automotive and related energy infrastructure technologies achieved in 2013 by the U.S. DRIVE...

  15. Impact Of Real-World Driving Characteristics On Vehicular Emissions

    E-Print Network [OSTI]

    Nesamani, K S; Subramanian, K. P.

    2005-01-01

    University of Hawaii. (2001). Kuhler, M. and D. Karstens,influence on emissions. Kuhler and Karstens included a fewcharacterize the driving cycle (Kuhler and Karstens 1978).

  16. Critical Factors Driving the High Volumetric Uptake of Methane...

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

    Critical Factors Driving the High Volumetric Uptake of Methane in Cu-3(btc)(2) Previous Next List Hulvey, Zeric; Vlaisavljevich, Bess; Mason, Jarad A.; Tsivion, Ehud; Dougherty,...

  17. Energy Department Announces $53 Million to Drive Innovation,...

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

    projects that aim to drive down the cost of solar energy, tackling key aspects of technology development in order to bring innovative ideas to the market more quickly....

  18. Electric Drive and Advanced Battery and Components Testbed (EDAB...

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

    vss033carlson2012o.pdf More Documents & Publications Electric Drive and Advanced Battery and Components Testbed (EDAB) Vehicle Technologies Office Merit Review 2014: Electric...

  19. Lightweight combustion residues-based structural materials for use in mines. Technical report, September 1--November 30, 1994

    SciTech Connect (OSTI)

    Chugh, Y.P.; Zhang, Y.; Ghosh, A.K.; Palmer, S.R. [Southern Illinois Univ., Carbondale, IL (United States)

    1994-12-31

    The overall goal of the project is to develop a 70--80 pcf, 2,500--3,000 psi-compressive-strength cellular concrete-type product from PCC fly ash, PCC bottom ash, and/or FBC spent bed ash alone or in suitable combination thereof. The developed combustion residue-based lightweight structural material will be used to replace wooden posts and crib members in underground mines. This report outlines the work completed in the first quarter of the project. The density gradient centrifuge (DGC) has been used to separate a power plant fly ash sample into fractions of different density. Each of the fly ash fractions obtained by DGC, an aliquot of the unseparated fly ash and an aliquot of a magnetic component of the fly ash, were digested in strong acids following the procedures outlined in ASTM 3050. Preliminary experiments have also been carried out to study the effect of mix proportions and curing regimes on the strength and density on the developed material. The DGC separation test reveals that most of the fly ash sample (approx. 90%) has a density above 1.9 g/cm{sup 3}. Indeed, nearly half of the sample has a density greater than 2.4 g/cm{sup 3}. Since only a very small amount of this fly ash has a reasonably low specific gravity, it appears unlikely at this time that enough low density material would be isolated to significantly enhance lightweight concrete production using fractionated material. A series of mixes have been made using fly ash, sodium silicate, cement, sand and water. Preliminary tests show that both cement and sodium silicate can be used as the binders to develop residues-based lightweight concrete. To date, compressive strength as high as 1,290 psi have been achieved with a density of 133 pcf, with 50 g of cement, 50 g of fly ash and 300 g of sand. Most of the work during the first quarter was done to understand the characteristics of the component materials.

  20. Hybrid-drive implosion system for ICF targets

    DOE Patents [OSTI]

    Mark, James W. (Danville, CA)

    1988-01-01

    Hybrid-drive implosion systems (20,40) for ICF targets (10,22,42) are described which permit a significant increase in target gain at fixed total driver energy. The ICF target is compressed in two phases, an initial compression phase and a final peak power phase, with each phase driven by a separate, optimized driver. The targets comprise a hollow spherical ablator (12) surroundingly disposed around fusion fuel (14). The ablator is first compressed to higher density by a laser system (24), or by an ion beam system (44), that in each case is optimized for this initial phase of compression of the target. Then, following compression of the ablator, energy is directly delivered into the compressed ablator by an ion beam driver system (30,48) that is optimized for this second phase of operation of the target. The fusion fuel (14) is driven, at high gain, to conditions wherein fusion reactions occur. This phase separation allows hydrodynamic efficiency and energy deposition uniformity to be individually optimized, thereby securing significant advantages in energy gain. In additional embodiments, the same or separate drivers supply energy for ICF target implosion.