National Library of Energy BETA

Sample records for drive irrigation systems

  1. 'Smart' Irrigation Systems

    SciTech Connect

    Hastbacka, Mildred; Dieckmann, John; Brodrick, James

    2012-08-31

    The article discusses the ASHRAE Standard 189, with mandatory and optional provisions related to water use efficiency, then focuses on the use of water efficient irrigation systems and the use of recycled water such as air conditioner condensate for landscaping irrigation. Benefits of such practices include both water and energy savings.

  2. Traction Drive Systems Breakout

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Traction Drive Systems Breakout John M. Miller, PhD, PE, F.IEEE, F.SAE Oak Ridge National Laboratory Facilitator July 24, 2012 EV Everywhere Grand Challenge Vehicle Technologies ...

  3. Traction Drive Systems Breakout Group

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    profit motive in value chain * 4 - Today's HEV systems drive EV traction drive systems ... replacing the traditional rechargeable battery with a flow battery that can be ...

  4. 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 ...

  5. Vehicle Technologies Office: Electric Drive Systems Research...

    Energy.gov [DOE] (indexed site)

    Vehicle Technologies Office: Electric Drive Systems Research and Development Electric drive technologies, including the electric motor, inverter, boost converter, and on-board ...

  6. HybriDrive Propulsion System

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    HybriDrive ® Propulsion System Cleaner, smarter power for transit DOE/FTA Fuel Cell Research Priorities Workshop Washington, DC 7 June 2010 Bart W. Mancini Sr. Principal Systems Engineer BAE Systems Ph: 607-770-4103 bart.mancini@baesystems.com 2 Overview 3 * BAE Systems FC Experience / Deployments * Technology gaps/barriers to full commercialization of fuel cell buses * Well-to-wheels energy efficiency and emissions * Cost metrics * Bus integration issues * Fuel cell bus R&D needs * Future

  7. Energy savings potential from energy-conserving irrigation systems

    SciTech Connect

    Wilfert, G.L.; Patton, W.P.; Harrer, B.J.; Clark, M.A.

    1982-11-01

    This report systematically compares, within a consistent framework, the technical and economic characteristics of energy-conserving irrigation systems with those of conventional irrigation systems and to determine total energy savings. Levelized annual costs of owning and operating both energy-conserving and conventional irrigation systems have been developed and compared for all 17 states to account for the differences in energy costs and irrigation conditions in each state. Market penetration of energy-conserving systems is assessed for those systems having lower levelized annual costs than conventional systems performing the same function. Annual energy savings were computed by matching the energy savings per system with an assumed maximum market penetration of 100 percent in those markets where the levelized annual costs of energy-conserving systems are lower than the levelized annual costs of conventional systems.

  8. Traction Drive Systems Breakout | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Traction Drive Systems Breakout Traction Drive Systems Breakout Presentation 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. 9a_miller_ed.pdf (1.16 MB) More Documents & Publications Power Electronics and Thermal Management Breakout Session Electric Drive Status and Challenges Advanced Power Electronics and Electric Motors (APEEM) R&D Program Overview

  9. Control rod drive hydraulic system

    DOEpatents

    Ose, Richard A.

    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.

  10. Centerless-drive solar collector system

    SciTech Connect

    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.

  11. Tritium Irrigation Facility & Automated Vadose Zone Monitoring System |

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Savannah River Ecology Laboratory Tritium Irrigation Facility and Automated Vadose Monitoring System The opportunity to study tritium movement in a natural system presents a rare opportunity for both physical and biological research. Researchers may take advantage of tritium's properties as a conservative tracer for modeling contaminant transport, as a radioactive tracer for examining biological processes involving water, or as an example of radionuclide contaminant behavior in natural

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

    Energy Saver

    Motor and Drive System Basics: Summarizes important terms, relationships, and system design considerations relating to motor and drive systems. Performance Opportunity Road Map: ...

  13. Toward an Earth System Modeling Approach to Simulate Irrigation Effects |

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    U.S. DOE Office of Science (SC) Toward an Earth System Modeling Approach to Simulate Irrigation Effects Biological and Environmental Research (BER) BER Home About Research Facilities Science Highlights Searchable Archive of BER Highlights External link Benefits of BER Funding Opportunities Biological & Environmental Research Advisory Committee (BERAC) Community Resources Contact Information Biological and Environmental Research U.S. Department of Energy SC-23/Germantown Building 1000

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

    Energy.gov [DOE] (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 America, ...

  15. Improving Motor and Drive System Performance - A Sourcebook for Industry

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    | Department of Energy Motor and Drive System Performance - A Sourcebook for Industry Improving Motor and Drive System Performance - A Sourcebook for Industry This sourcebook outlines opportunities to improve motor and drive systems performance. The sourcebook is divided into four main sections: Motor and Drive System Basics: Summarizes important terms, relationships, and system design considerations relating to motor and drive systems. Performance Opportunity Road Map: Details the key

  16. Oscillation control system for electric motor drive

    DOEpatents

    Slicker, James M.; Sereshteh, Ahmad

    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.

  17. Oscillation control system for electric motor drive

    DOEpatents

    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.

  18. Heating and current drive systems for TPX

    SciTech Connect

    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.

  19. Real-time data acquisition and telemetry based irrigation control system

    DOEpatents

    Slater, John M.; Svoboda, John M.

    2005-12-13

    A data acquisition and telemetry based control system for use in facilitating substantially real time management of an agricultural irrigation system. The soil moisture sensor includes a reader and a plurality of probes. The probes each include an electronic circuit having a moisture sensing capacitor in operative communication with the soil whose moisture is to be measured. Each probe also includes a receive/transmit antenna and the reader includes a transmit/receive antenna, so that as the reader passes near the probe, the reader transmits a digital excitation signal to the electronic circuit of the biodegradable probe via an inductive couple formed between the transmit/receive antenna of the reader and the receive/transmit coil of the probe. The electronic circuit uses an energy component of the excitation signal to generate a digital data signal which indicates the moisture content of the soil adjacent to the moisture sensing capacitor. The probe sends the data signal to the reader which then uses the data signal to develop a corresponding set of watering instructions which are then transmitted to a control module in communication with the irrigation system. The control module sends corresponding control signals to nozzles of the irrigation system causing the irrigation system to disperse water in a manner consistent with the moisture content data transmitted by the probes to the reader. Because the irrigation system moves continuously through the field to be irrigated, the moisture content data acquisition and resultant water dispersal by the irrigation system occur substantially in real time.

  20. Crops reap benefits of Pantex irrigation system | National Nuclear...

    National Nuclear Security Administration (NNSA)

    in bushel per acre for wheat, and last growing season, a Carson County record in density per bushel for corn. The 100-acre tract to be added to the underground irrigation...

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Vehicle Systems and Analysis Technical Team Roadmap US DRIVE Vehicle Systems and Analysis Technical Team Roadmap VSATT provides the analytic support and subsystem characterizations ...

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The sourcebook is divided into four main sections: Motor and Drive System Basics: Summarizes important terms, relationships, and system design considerations relating to motor and ...

  3. Next Generation Environmentally Friendly Driving Feedback Systems Research

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    and Development | Department of Energy Environmentally Friendly Driving Feedback Systems Research and Development Next Generation Environmentally Friendly Driving Feedback Systems Research and Development 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting vss086_barth_2012_o.pdf (1.48 MB) More Documents & Publications Next Generation Environmentally Friendly Driving Feedback Systems Research and Development Vehicle

  4. Wind turbine ring/shroud drive system

    DOEpatents

    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. EV Everywhere Workshop: Traction Drive Systems Breakout Group...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    (1.58 MB) More Documents & Publications EV Everywhere - Charge to Breakout Sessions EV Everywhere Framing Workshop - Report Out & Lessons Learned Traction Drive Systems Breakout

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

    Energy.gov [DOE] (indexed site)

    2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review ... Electric Drive Component Manufacturing: Magna E-Car Systems of America, Inc. Electric ...

  7. 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 ... More Documents & Publications Current Source Inverters for HEVs and FCVs Converter ...

  8. Columbia River System Operation Review : Final Environmental Impact Statement, Appendix F: Irrigation, Municipal and Industrial/Water Supply.

    SciTech Connect

    Columbia River System Operations Review; United States. Bonneville Power Administration; United States. Army. Corps of Engineers. North Pacific Division; United States. Bureau of Reclamation. Pacific Northwest Region.

    1995-11-01

    Since the 1930`s, the Columbia River has been harnessed for the benefit of the Northwest and the nation. Federal agencies have built 30 major dams on the river and its tributaries. Dozens of non-Federal projects have been developed as well. The dams provide flood control, irrigation, navigation, hydro-electric power generation, recreation, fish and wildlife, and streamflows for wildlife, anadromous fish, resident fish, and water quality. This is Appendix F of the Environmental Impact Statement for the Columbia River System, focusing on irrigation issues and concerns arrising from the Irrigation and Mitigation of impacts (M&I) working Group of the SOR process. Major subheadings include the following: Scope and process of irrigation/M&I studies; Irrigation/M&I in the Columbia Basin Today including overview, irrigated acreage and water rights, Irrigation and M&I issues basin-wide and at specific locations; and the analysis of impacts and alternative for the Environmental Impact Statement.

  9. US DRIVE Vehicle Systems and Analysis Technical Team Roadmap

    Office of Energy Efficiency and Renewable Energy (EERE)

    VSATT provides the analytic support and subsystem characterizations that guide technology and system selections and assist U.S. DRIVE Technical Teams in determining performance goals and validation metrics.

  10. Combined Electric Machine and Current Source Inverter Drive System - Energy

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Innovation Portal Hydrogen and Fuel Cell Hydrogen and Fuel Cell Energy Analysis Energy Analysis Advanced Materials Advanced Materials Find More Like This Return to Search Combined Electric Machine and Current Source Inverter Drive System Oak Ridge National Laboratory Contact ORNL About This Technology Publications: PDF Document Publication 11-G00249_ID2505.pdf (764 KB) Technology Marketing SummaryThis technology is a drive system that includes a permanent magnet-less (PM-L) electric motor

  11. HybriDrive Propulsion System | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    HybriDrive Propulsion System HybriDrive Propulsion System Presentation at DOE & DOT Joint Fuel Cell Bus Workshop, Washington DC, June 7, 2010 buswksp10_mancini.pdf (735.34 KB) More Documents & Publications Joint Fuel Cell Bus Workshop Summary Report Vehicle Technologies Office Merit Review 2015: Zero Emission Cargo Transport II Vehicle Technologies Office Merit Review 2016: Zero Emission Cargo Transport II: San Pedro Bay Ports Hybrid & Fuel Cell Electric Vehicle Project

  12. Improving Motor and Drive System Performance

    Energy.gov [DOE] (indexed site)

    ... Reactive power loads also reduce the in- plant electric distribution system's capacity by creating an additional voltage drop that can cause equipment to perform poorly. Low-power ...

  13. Analysis of national pay-as-you-drive insurance systems and other variable driving charges

    SciTech Connect

    Wenzel, T.

    1995-07-01

    Under Pay as You Drive insurance (PAYD), drivers would pay part of their automobile insurance premium as a per-gallon surcharge every time they filled their gas tank. By transfering a portion of the cost of owning a vehicle from a fixed cost to a variable cost, PAYD would discourage driving. PAYD has been proposed recently in California as a means of reforming how auto insurance is provided. PAYD proponents claim that, by forcing drivers to purchase at least part of their insurance every time they refuel their car, PAYD would reduce or eliminate the need for uninsured motorist coverage. Some versions of PAYD proposed in California have been combined with a no-fault insurance system, with the intention of further reducing premiums for the average driver. Other states have proposed PAYD systems that would base insurance premiums on annual miles driven. In this report we discuss some of the qualitative issues surrounding adoption of PAYD and other policies that would convert other fixed costs of driving (vehicle registration, safety/emission control system inspection, and driver license renewal) to variable costs. We examine the effects of these policies on two sets of objectives: objectives related to auto insurance reform, and those related to reducing fuel consumption, CO{sub 2} emissions, and vehicle miles traveled. We pay particular attention to the first objective, insurance reform, since this has generated the most interest in PAYD to date, at least at the state level.

  14. Electric machine and current source inverter drive system

    DOEpatents

    Hsu, John S

    2014-06-24

    A drive system includes an electric machine and a current source inverter (CSI). This integration of an electric machine and an inverter uses the machine's field excitation coil for not only flux generation in the machine but also for the CSI inductor. This integration of the two technologies, namely the U machine motor and the CSI, opens a new chapter for the component function integration instead of the traditional integration by simply placing separate machine and inverter components in the same housing. Elimination of the CSI inductor adds to the CSI volumetric reduction of the capacitors and the elimination of PMs for the motor further improve the drive system cost, weight, and volume.

  15. Case Study: Driving Operational Changes Through an Energy Monitoring System

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    reporting, checklists, energy targets, and feedback leads to effective organizational change. Driving Operational Changes Through an Energy Monitoring System In 2006, IBM launched a corporate effciency program focused on basic operation im- provements in its diverse and far-fung real estate operations. The effciency program had behavior change as a major focus. Examples of changes include the following: * IBM implemented a monthly energy reporting system for its various facilities where

  16. FTIR spectrometer with solid-state drive system

    DOEpatents

    Rajic, Slobodan; Seals, Roland D.; Egert, Charles M.

    1999-01-01

    An FTIR spectrometer (10) and method using a solid-state drive system with thermally responsive members (27) that are subject to expansion upon heating and to contraction upon cooling. Such members (27) are assembled in the device (10) so as to move an angled, reflective surface (22) a small distance. The sample light beam (13) is received at a detector (24) along with a reference light beam (13) and there it is combined into a resulting signal. This allows the "interference" between the two beams to occur for spectral analysis by a processor (29).

  17. Linear hydraulic drive system for a Stirling engine

    DOEpatents

    Walsh, Michael M.

    1984-02-21

    A hydraulic drive system operating from the periodic pressure wave produced by a Stirling engine along a first axis thereof and effecting transfer of power from the Stirling engine to a load apparatus therefor and wherein the movable, or working member of the load apparatus is reciprocatingly driven along an axis substantially at right angles to the first axis to achieve an arrangement of a Stirling engine and load apparatus assembly which is much shorter and the components of the load apparatus more readily accessible.

  18. Linear hydraulic drive system for a Stirling engine

    SciTech Connect

    Walsh, M.M.

    1984-02-21

    A hydraulic drive system operating from the periodic pressure wave produced by a Stirling engine along a first axis thereof and effecting transfer of power from the Stirling engine to a load apparatus therefor and wherein the movable, or working member of the load apparatus is reciprocatingly driven along an axis substantially at right angles to the first axis to achieve an arrangement of a Stirling engine and load apparatus assembly which is much shorter and the components of the load apparatus more readily accessible. 2 figs.

  19. Improving Motor and Drive System Performance – A Sourcebook for Industry

    SciTech Connect

    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.

  20. Hybrid-drive implosion system for ICF targets

    DOEpatents

    Mark, J.W.K.

    1987-10-14

    Hybrid-drive implosion systems for ICF targets 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 surroundingly disposed around fusion fuel. The ablator is first compressed to higher density by a laser system, or by an ion beam system, 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 that is optimized for this second phase of operation of the target. The fusion fuel 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. 3 figs.

  1. Hybrid-drive implosion system for ICF targets

    DOEpatents

    Mark, James W.

    1988-08-02

    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.

  2. Hybrid-drive implosion system for ICF targets

    DOEpatents

    Mark, James W.

    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.

  3. Evaluation of 2004 Toyota Prius Hybrid Electric Drive System

    SciTech Connect

    Staunton, Robert H; Ayers, Curtis William; Chiasson, J. N.; Burress, Timothy A; Marlino, Laura D

    2006-05-01

    The 2004 Toyota Prius is a hybrid automobile equipped with a gasoline engine and a battery- and generator-powered electric motor. Both of these motive-power sources are capable of providing mechanical-drive power for the vehicle. The engine can deliver a peak-power output of 57 kilowatts (kW) at 5000 revolutions per minute (rpm) while the motor can deliver a peak-power output of 50 kW over the speed range of 1200-1540 rpm. Together, this engine-motor combination has a specified peak-power output of 82 kW at a vehicle speed of 85 kilometers per hour (km/h). In operation, the 2004 Prius exhibits superior fuel economy compared to conventionally powered automobiles. To acquire knowledge and thereby improve understanding of the propulsion technology used in the 2004 Prius, a full range of design characterization studies were conducted to evaluate the electrical and mechanical characteristics of the 2004 Prius and its hybrid electric drive system. These characterization studies included (1) a design review, (2) a packaging and fabrication assessment, (3) bench-top electrical tests, (4) back-electromotive force (emf) and locked rotor tests, (5) loss tests, (6) thermal tests at elevated temperatures, and most recently (7) full-design-range performance testing in a controlled laboratory environment. This final test effectively mapped the electrical and thermal results for motor/inverter operation over the full range of speeds and shaft loads that these assemblies are designed for in the Prius vehicle operations. This testing was undertaken by the Oak Ridge National Laboratory (ORNL) as part of the U.S. Department of Energy (DOE) - Energy Efficiency and Renewable Energy (EERE) FreedomCAR and Vehicle Technologies (FCVT) program through its vehicle systems technologies subprogram. The thermal tests at elevated temperatures were conducted late in 2004, and this report does not discuss this testing in detail. The thermal tests explored the derating of the Prius motor design if

  4. Performance of a 10 kilowatt wind-electric water pumping system for irrigating crops

    SciTech Connect

    Vick, B.D.; Clark, R.N.; Molla, S.

    1997-12-31

    A 10 kW wind-electric water pumping system was tested for field crop irrigation at pumping depths from 50 to 120 m. The wind turbine for this system used a permanent magnet alternator that powered off-the-shelf submersible motors and pumps without the use of an inverter. Pumping performance was determined at the USDA-Agricultural Research Service (ARS), Wind Energy Laboratory in Bushland, TX for the 10 kW wind turbine using a pressure valve and a pressure tank to simulate different pumping depths. Pumping performance was measured for two 10 kW wind turbines of the same type at farms near the cities of Garden City, TX and Stiles, TX. The pumping performance data collected at these actual wells compared favorably with the data collected at the USDA-ARS, Wind Energy Laboratory. If utility generated electricity was accessible, payback on the wind turbine depended on the cost of utility generated electricity and the transmission line extension cost.

  5. EV Everywhere Workshop: Traction Drive Systems Breakout Group Report

    Energy.gov [DOE]

    Presentation 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.

  6. iDriving (Intelligent Driving)

    Energy Science and Technology Software Center

    2012-09-17

    iDriving identifies the driving style factors that have a major impact on fuel economy. An optimization framework is used with the aim of optimizing a driving style with respect to these driving factors. A set of polynomial metamodels is constructed to reflect the responses produced in fuel economy by changing the driving factors. The optimization framework is used to develop a real-time feedback system, including visual instructions, to enable drivers to alter their driving stylesmore » in responses to actual driving conditions to improve fuel efficiency.« less

  7. Comparison of a synergetic battery pack drive system to a pulse width modulated AC induction motor drive for an electric vehicle

    SciTech Connect

    Davis, A.; Salameh, Z.M.; Eaves, S.S.

    1999-06-01

    A new battery configuration technique and accompanying control circuitry, termed a Synergetic Battery Pack (SBP), is designed to work with Lithium batteries, and can be used as both an inverter for an electric vehicle AC induction motor drive and as a battery charger. In this paper, the performance of a Synergetic Battery Pack during motor drive operation is compared via computer simulation with a conventional motor drive which uses sinusoidal pulse width modulation (SPWM) to determine its effectiveness as a motor drive. The study showed that the drive efficiency was compatible with the conventional system, and offered a significant advantage in the lower frequency operating ranges. The voltage total harmonic distortion (THD) of the SBP was significantly lower than the PWM drive output, but the current THD was slightly higher due to the shape of the harmonic spectrum. In conclusion, the SBP is an effective alternative to a conventional drive, but the real advantage lies in its battery management capabilities and charger operation.

  8. EV Everywhere: Electric Drive Systems Bring Power to Plug-in...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    the first time a domestic automaker is building electric motors for an electric vehicle ... electric drive system in a plug-in electric vehicle bridges two different types of energy. ...

  9. 13th International Conference on Magnetically Levitated Systems and Linear Drives

    SciTech Connect

    Not Available

    1993-09-01

    This report contains short papers on research being conducted throughout the world on magnetically levitated systems, mainly consisting of trains, and magnetic linear drives. These papers have been index separately elsewhere on the data base.

  10. Rim-drive cable-aligned heliostat collector system

    DOEpatents

    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.

  11. Rim-drive cable-aligned heliostat collector system

    DOEpatents

    Dolan, James E.; Sands, Timothy D.

    1984-01-01

    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.

  12. Intergral Drive Systems AG IDS | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Swaziland Zip: CH-8005 Sector: Wind energy Product: Zurich based producer of power electronics systems for wind turbines, PV plants, and propulsion systems. Coordinates:...

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

    DOEpatents

    Horton, Richard H.

    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.

  14. Performance Comparison Study of SiC and Si Technology for an IPM Drive System

    SciTech Connect

    Chinthavali, Madhu Sudhan; Otaduy, Pedro J; Ozpineci, Burak

    2010-01-01

    The impact of the new SiC material based devices on a full system needs to be evaluated in order to assess the benefits of replacing Silicon (Si) devices with WBG devices. In this paper the results obtained with a full-system model simulated for an aggressive US06 drive cycle are presented. The system model includes a motor/generator model and inverter loss model developed using actual measured data. The results provide an insight to the difference in performance of a permanent magnet traction drive system using SiC versus Si devices.

  15. Improving Motor and Drive System Performance: A Sourcebook for Industry

    SciTech Connect

    Not Available

    2008-09-01

    This is one in a series of sourcebooks to assist industrial personnel in understanding and optimizing motors and motor-driven systems

  16. Improving Motor and Drive System Performance: A Sourcebook for Industry

    SciTech Connect

    2010-06-25

    This is one in a series of sourcebooks to assist industrial personnel in understanding and optimizing motors and motor-driven systems.

  17. System and method for determining stator winding resistance in an AC motor using motor drives

    DOEpatents

    Lu, Bin; Habetler, Thomas G; Zhang, Pinjia

    2013-02-26

    A system and method for determining the stator winding resistance of AC motors is provided. The system includes an AC motor drive having an input connectable to an AC source and an output connectable to an input terminal of an AC motor, a pulse width modulation (PWM) converter having switches therein to control current flow and terminal voltages in the AC motor, and a control system connected to the PWM converter. The control system generates a command signal to cause the PWM converter to control an output of the AC motor drive corresponding to an input to the AC motor, selectively generates a modified command signal to cause the PWM converter to inject a DC signal into the output of the AC motor drive, and determines a stator winding resistance of the AC motor based on the DC signal of at least one of the voltage and current.

  18. Mounting arrangement for the drive system of an air-bearing spindle on a machine tool

    DOEpatents

    Lunsford, J.S.; Crisp, D.W.; Petrowski, P.L.

    1987-12-07

    The present invention is directed to a mounting arrangement for the drive system of an air-bearing spindle utilized on a machine tool such as a lathe. The mounting arrangement of the present invention comprises a housing which is secured to the casing of the air bearing in such a manner that the housing position can be selectively adjusted to provide alignment of the air-bearing drive shaft supported by the housing and the air-bearing spindle. Once this alignment is achieved the air between spindle and the drive arrangement is maintained in permanent alignment so as to overcome misalignment problems encountered in the operation of the machine tool between the air-bearing spindle and the shaft utilized for driving the air-bearing spindle.

  19. Turlock Irrigation District- PV Rebate

    Energy.gov [DOE]

    Turlock Irrigation District (TID) offers an incentive program to their customers who install solar photovoltaic (PV) systems. In keeping with the terms of the California Solar Initiative, the inc...

  20. Evaluation of 2005 Honda Accord Hybrid Electric Drive System

    SciTech Connect

    Staunton, R.H.; Burress, T.A.; Marlino, L.D.

    2006-09-11

    The Hybrid Electric Vehicle (HEV) program officially began in 1993 as a five-year, cost-shared partnership between the U.S. Department of Energy (DOE) and American auto manufacturers: General Motors, Ford, and Daimler Chrysler. Currently, HEV research and development is conducted by DOE through its FreedomCAR and Vehicle Technologies (FCVT) program. The mission of the FCVT program is to develop more energy efficient and environmentally friendly highway transportation technologies. Program activities include research, development, demonstration, testing, technology validation, and technology transfer. These activities are aimed at developing technologies that can be domestically produced in a clean and cost-competitive manner. The vehicle systems technologies subprogram, which is one of four subprograms under the FCVT program, supports the efforts of the FreedomCAR through a three-phase approach [1] intended to: (1) Identify overall propulsion and vehicle-related needs by analyzing programmatic goals and reviewing industry's recommendations and requirements, then develop the appropriate technical targets for systems, subsystems, and component research and development activities; (2) Develop and validate individual subsystems and components, including electric motors, emission control devices, battery systems, power electronics, accessories, and devices to reduce parasitic losses; and (3) Determine how well the components and subassemblies work together in a vehicle environment or as a complete propulsion system and whether the efficiency and performance targets at the vehicle level have been achieved. The research performed under the vehicle systems subprogram will help remove technical and cost barriers to enable technology for use in such advanced vehicles as hybrid electric, plug-in electric, and fuel-cell-powered vehicles.

  1. Evaluation of the 2007 Toyota Camry Hybrid Synergy Drive System

    SciTech Connect

    Burress, T A; Coomer, C L; Campbell, S L; Seiber, L E; Marlino, L D; Staunton, R H; Cunningham, J P

    2008-04-15

    The U.S. Department of Energy (DOE) and American automotive manufacturers General Motors, Ford, and DaimlerChrysler began a five-year, cost-shared partnership in 1993. Currently, hybrid electric vehicle (HEV) research and development is conducted by DOE through its FreedomCAR and Vehicle Technologies (FCVT) program. The mission of the FCVT program is to develop more energy efficient and environmentally friendly highway transportation technologies. Program activities include research, development, demonstration, testing, technology validation, and technology transfer. These activities are aimed at developing technologies that can be domestically produced in a clean and cost-competitive manner. Under the FCVT program, support is provided through a three-phase approach [1] which is intended to: • Identify overall propulsion and vehicle-related needs by analyzing programmatic goals and reviewing industry’s recommendations and requirements, then develop the appropriate technical targets for systems, subsystems, and component research and development activities; • Develop and validate individual subsystems and components, including electric motors, emission control devices, battery systems, power electronics, accessories, and devices to reduce parasitic losses; and • Determine how well the components and subassemblies work together in a vehicle environment or as a complete propulsion system and whether the efficiency and performance targets at the vehicle level have been achieved. The research performed in this area will help remove technical and cost barriers to enable technology for use in such advanced vehicles as hybrid electric, plug-in hybrid electric, electric, and fuel-cell-powered vehicles.

  2. Passive pavement-mounted acoustical linguistic drive alert system and method

    DOEpatents

    Kisner, Roger A.; Anderson, Richard L.; Carnal, Charles L.; Hylton, James O.; Stevens, Samuel S.

    2001-01-01

    Systems and methods are described for passive pavement-mounted acoustical alert of the occupants of a vehicle. A method of notifying a vehicle occupant includes providing a driving medium upon which a vehicle is to be driven; and texturing a portion of the driving medium such that the textured portion interacts with the vehicle to produce audible signals, the textured portion pattern such that a linguistic message is encoded into the audible signals. The systems and methods provide advantages because information can be conveyed to the occupants of the vehicle based on the location of the vehicle relative to the textured surface.

  3. Opportunities for Demand Response in California Agricultural Irrigation: A Scoping Study

    SciTech Connect

    Marks, Gary; Wilcox, Edmund; Olsen, Daniel; Goli, Sasank

    2013-01-02

    California agricultural irrigation consumes more than ten billion kilowatt hours of electricity annually and has significant potential for contributing to a reduction of stress on the grid through demand response, permanent load shifting, and energy efficiency measures. To understand this potential, a scoping study was initiated for the purpose of determining the associated opportunities, potential, and adoption challenges in California agricultural irrigation. The primary research for this study was conducted in two ways. First, data was gathered and parsed from published sources that shed light on where the best opportunities for load shifting and demand response lie within the agricultural irrigation sector. Secondly, a small limited survey was conducted as informal face-to-face interviews with several different California growers to get an idea of their ability and willingness to participate in permanent load shifting and/or demand response programs. Analysis of the data obtained from published sources and the survey reveal demand response and permanent load shifting opportunities by growing region, irrigation source, irrigation method, grower size, and utility coverage. The study examines some solutions for demand response and permanent load shifting in agricultural irrigation, which include adequate irrigation system capacity, automatic controls, variable frequency drives, and the contribution from energy efficiency measures. The study further examines the potential and challenges for grower acceptance of demand response and permanent load shifting in California agricultural irrigation. As part of the examination, the study considers to what extent permanent load shifting, which is already somewhat accepted within the agricultural sector, mitigates the need or benefit of demand response for agricultural irrigation. Recommendations for further study include studies on how to gain grower acceptance of demand response as well as other related studies such as

  4. An Inverter Packaging Scheme for an Integrated Segmented Traction Drive System

    SciTech Connect

    Su, Gui-Jia; Tang, Lixin; Ayers, Curtis William; Wiles, Randy H

    2013-01-01

    The standard voltage source inverter (VSI), widely used in electric vehicle/hybrid electric vehicle (EV/HEV) traction drives, requires a bulky dc bus capacitor to absorb the large switching ripple currents and prevent them from shortening the battery s life. The dc bus capacitor presents a significant barrier to meeting inverter cost, volume, and weight requirements for mass production of affordable EVs/HEVs. The large ripple currents become even more problematic for the film capacitors (the capacitor technology of choice for EVs/HEVs) in high temperature environments as their ripple current handling capability decreases rapidly with rising temperatures. It is shown in previous work that segmenting the VSI based traction drive system can significantly decrease the ripple currents and thus the size of the dc bus capacitor. This paper presents an integrated packaging scheme to reduce the system cost of a segmented traction drive.

  5. Next Generation Environmentally-Friendly Driving Feedback Systems Research and Development

    SciTech Connect

    Barth, Matthew; Boriboonsomsin, Kanok

    2014-12-31

    The objective of this project is to design, develop, and demonstrate a next-generation, federal safety- and emission-complaint driving feedback system that can be deployed across the existing vehicle fleet and improve fleet average fuel efficiency by at least 2%. The project objective was achieved with the driving feedback system that encourages fuel-efficient vehicle travel and operation through: 1) Eco-Routing Navigation module that suggests the most fuel-efficient route from one stop to the next, 2) Eco-Driving Feedback module that provides sensible information, recommendation, and warning regarding fuel-efficient vehicle operation, and 3) Eco-Score and Eco-Rank module that provides a means for driving performance tracking, self-evaluation, and peer comparison. The system also collects and stores vehicle travel and operation data, which are used by Algorithm Updating module to customize the other modules for specific vehicles and adapts them to specific drivers over time. The driving feedback system was designed and developed as an aftermarket technology that can be retrofitted to vehicles in the existing fleet. It consists of a mobile application for smart devices running Android operating system, a vehicle on-board diagnostics connector, and a data server. While the system receives and utilizes real-time vehicle and engine data from the vehicle’s controller area network bus through the vehicle’s on-board diagnostic connector, it does not modify or interfere with the vehicle’s controller area network bus, and thus, is in compliance with federal safety and emission regulations. The driving feedback system was demonstrated and then installed on 45 vehicles from three different fleets for field operational test. These include 15 private vehicles of the general public, 15 pickup trucks of the California Department of Transportation that are assigned to individual employees for business use, and 15 shuttle buses of the Riverside Transit Agency that are used

  6. FULLY INTEGRATED HIGH SPEED MEGAWATT CLASS MOTOR AND HIGH FREQUENCY VARIABLE SPEED DRIVE SYSTEM

    Energy.gov [DOE]

    Clemson University – North Charleston, SC New motor power converter technologies will be used to develop a pre-commercial megawatt class variable speed drive. The fully integrated prototype system will be made by TECO Westinghouse Motor Company in its Round Rock, TX facility and be demonstrated at Clemson’s eGRID Center. Fact sheet coming soon.

  7. Engine having hydraulic and fan drive systems using a single high pressure pump

    DOEpatents

    Bartley, Bradley E.; Blass, James R.; Gibson, Dennis H.

    2000-01-01

    An engine comprises a hydraulic system attached to an engine housing that includes a high pressure pump and a hydraulic fluid flowing through at least one passageway. A fan drive system is also attached to the engine housing and includes a hydraulic motor and a fan which can move air over the engine. The hydraulic motor includes an inlet fluidly connected to the at least one passageway.

  8. Detection and mitigating rod drive control system degradation in Westinghouse PWRs

    SciTech Connect

    Gunther, W.; Sullivan, K.

    1990-01-01

    A study of the effects of aging on the Westinghouse Control Rod Drive (CRD) System was performed as part of the US NRC's Nuclear Plant aging Research (NPAR) Program. For the study, the CRD system boundary includes the power and logic cabinets associated with the manual control rod movement, and the control rod mechanism itself. The aging-related degradation of the interconnecting cables and connectors and the rod position indicating system also were considered. This paper presents the results of that study pertaining to the electrical and instrumentation portions of the CRD system including ways to detect and mitigate system degradation.

  9. Agricultural Irrigation Demand Response Estimation Tool

    Energy Science and Technology Software Center

    2014-02-01

    This program is used to model the energy demand of agricultural irrigation pumps, used to maintain soil moisture levels in irrigated fields. This modeling is accomplished using historical data from evapotranspirationmeasuring weather stations (from the California Irrigation Management Information System) as well as irrigation system characteristics for the field(s) to be modeled. The modelled energy demand is used to estimate the achievable demand response (DR) potential of the field(s), for use in assessing the valuemore » of the DR for the utility company. The program can accept input data with varying degrees of rigor, and estimate the uncertainty of the output accordingly.« less

  10. The PEGASUS Drive: A nuclear electric propulsion system for the space exploration initiative

    SciTech Connect

    Coomes, E.P.; Dagle, J.E. )

    1991-01-01

    The advantages of using electric propulsion for propulsion are well-known in the aerospace community. The high specific impulse, lower propellant requirements, and lower system mass make it a very attractive propulsion option for the Space Exploration Initiative (SEI), especially for the transport of cargo. One such propulsion system is the PEGASUS Drive (Coomes {ital et} {ital al}. 1987). In its original configuration, the PEGASUS Drive consisted of a 10-MWe power source coupled to a 6-MW magnetoplasmadynamic (MPD) thruster system. The PEGASUS Drive propelled a manned vechicle to Mars and back in 601 days. By removing the crew and their associated support systems from the space craft and by incorporating technology advances in reactor design and heat rejection systems, a second generation PEGASUS Drive can be developed with an alpha less than two. Utilizing this propulsion system, a 400-MT cargo vechicle, assembled and loaded in low Earth orbit (LEO), could deliver 262 MT of supplies and hardware to MARS 282 days after escaping Earth orbit. Upon arrival at Mars the transport vehicle would place its cargo in the desired parking orbit around Mars and then proceed to synchronous orbit above the desired landing sight. Using a laser transmitter, PEGASUS could provide 2-MW on the surface to operate automated systems deployed earlier and then provide surface power to support crew activities after their arrival. The additional supplies and hardware, coupled with the availability of megawatt levels of electric power on the Mars surface, would greatly enhance and even expand the mission options being considered under SEI.

  11. The PEGASUS Drive: A nuclear electric propulsion system for the space exploration initiative

    SciTech Connect

    Coomes, E.P.; Dagle, J.E.

    1990-10-01

    The advantages of using electric propulsion for propulsion are well-known in the aerospace community. The high specific impulse, lower propellant requirements, and lower system mass make it a very attractive propulsion option for the Space Exploration Initiative (SEI), especially for the transport of cargo. One such propulsion system is the PEGASUS Drive (Coomes et al. 1987). In its original configuration, the PEGASUS Drive consisted of a 10-MWe power source coupled to a 6-MW magnetoplasmadynamic (MPD) thruster system. The PEGASUS Drive propelled a manned vehicle to Mars and back in 601 days. By removing the crew and their associated support systems from the spacecraft and by incorporating technology advances in reactor design and heat rejection systems, a second generation PEGASUS Drive can be developed with an alpha less than two. Utilizing this propulsion system, a 400-MT cargo vehicle, assembled and loaded in low Earth orbit (LEO), could deliver 262 MT of supplies and hardware to Mars 282 days after escaping Earth orbit. Upon arrival at Mars the transport vehicle would place its cargo in the desired parking orbit around Mars and then proceed to synchronous orbit above the desired landing sight. Using a laser transmitter, PEGASUS would provide 2-MWe on the surface to operate automated systems deployed earlier and then provide surface power to support crew activities after their arrival. The additional supplies and hardware, coupled with the availability of megawatt levels of electric power on the Mars surface, would greatly enhance and even expand the mission options being considered under SEI. 9 refs., 1 fig., 1 tab.

  12. Best Management Practice #5: Water-Efficient Irrigation | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy 5: Water-Efficient Irrigation Best Management Practice #5: Water-Efficient Irrigation Best Management Practice #5: Water-Efficient Irrigation Water efficiency must be considered from the initial irrigation system design phase through installation to ensure optimal performance. Consistent management and maintenance are also essential. Failure to do so can result in significant losses in system efficiency from poor management, improper system design, installation, or maintenance. With

  13. Current Drive for Plasma Via Vertically-Structured Permanent Magnet System.

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    | Princeton Plasma Physics Lab Current Drive for Plasma Via Vertically-Structured Permanent Magnet System. This invention uses the rotatoin of permanent magnets to generate a plasma current with toroidal fusion confinement devices. This particular device strategically places two rings of magnets above and below the ferromagnetic core in order to maximize both the efficiency and plasma current. No.: M-872 Inventor(s): Ali Zolfaghari

  14. Four Pulse Drive System for the Beam Induction Cells for DARHT Axis 2

    SciTech Connect

    Downing, J.; Carlson, R.; Melton, J.; Fockler, J.

    1999-06-28

    The proposed drive system allows for the generation of up to four (4) high-quality radiographic pulses along one line-of-sight, having arbitrary pulse spacing ({approximately}500 ns), using demonstrated technologies. This concept uses a four-pulse drive system to drive both a 16-MeV ensemble of 250-kV, 4-kA induction cells and a four-pulse, 4-MeV injector. The key to this approach lies in the method used to combine four pulses from different generators in a manner that does not compromise the voltage flatness requirement of {+-} 1%. The induction cells use core material for only a single pulse. A simple reverse bias circuit is used to reset the cores between pulses, and the insulator has been redesigned to withstand the reverse reset voltage. This approach can be installed in stages so that the facility can be used for dual axis radiography while implementing the multi-pulsing capability. A dual double-pulse format has been identified which provides a sequence of two pulses along one line-of-sight within a 2-{micro}sec window. The 2-{micro}sec windows can be separated by arbitrary time intervals of 2- to 10-{micro}sec.

  15. The targeted heating and current drive applications for the ITER electron cyclotron system

    SciTech Connect

    Henderson, M.; Darbos, C.; Gandini, F.; Gassmann, T.; Loarte, A.; Omori, T.; Purohit, D.; Saibene, G.; Gagliardi, M.; Farina, D.; Figini, L.; Hanson, G.; Poli, E.; Takahashi, K.

    2015-02-15

    A 24 MW Electron Cyclotron (EC) system operating at 170 GHz and 3600 s pulse length is to be installed on ITER. The EC plant shall deliver 20 MW of this power to the plasma for Heating and Current Drive (H and CD) applications. The EC system is designed for plasma initiation, central heating, current drive, current profile tailoring, and Magneto-hydrodynamic control (in particular, sawteeth and Neo-classical Tearing Mode) in the flat-top phase of the plasma. A preliminary design review was performed in 2012, which identified a need for extended application of the EC system to the plasma ramp-up, flattop, and ramp down phases of ITER plasma pulse. The various functionalities are prioritized based on those applications, which can be uniquely addressed with the EC system in contrast to other H and CD systems. An initial attempt has been developed at prioritizing the allocated H and CD applications for the three scenarios envisioned: ELMy H-mode (15 MA), Hybrid (∼12 MA), and Advanced (∼9 MA) scenarios. This leads to the finalization of the design requirements for the EC sub-systems.

  16. A Novel MagPipe Pipeline transportation system using linear motor drives

    SciTech Connect

    Fang, J.R.; Montgomery, D.B.; Roderick, L.

    2009-11-15

    A novel capsule pipeline transportation system using linear motor drives, called Magplane MagPipe, is under development with the intention to replace trucks and railways for hauling materials from the mine to the rail head, power plant, or processing plant with reduced operating cost and energy consumption. The initial demonstration of a MagPipe line in Inner Mongolia will be a 500-m-long double-pipe coal transport system with the design transportation capacity of 3 Mega-Mg per year. The pipeline consists of 6-m-long plastic pipe modules with an I-beam suspension system inside the pipe to carry sets of five coupled capsules. The pipe will also contain noncontinuous motor winding modules spaced at 50-m intervals. A set of Halbach-arrayed permanent magnets on the bottom of the capsules interact with the linear motor windings to provide propulsion. The motor is driven by variable frequency drives outside the pipe to control the speed. This paper briefly describes the overall MagPipe pipeline transportation system, including the preliminary conclusions of the linear synchronous motor analysis.

  17. Rainwater Availability for Landscape Irrigation Map | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    for Landscape Irrigation Map Rainwater Availability for Landscape Irrigation Map Harvested rainwater can provide a key source of landscape irrigation for federal facilities. Rainwater harvesting systems capture, divert, and store precipitation from rooftops for later use. The Federal Energy Management Program (FEMP) developed a map showing rainwater availability specifically for landscape irrigation to help federal agencies strategically identify locations in the U.S. that may be particularly

  18. Characterization of the Support and Drive System of the PETRA III APPLE Undulator

    SciTech Connect

    Bahrdt, J.; Baecker, H.-J.; Frentrup, W.; Gaupp, A.; Gottschlich, S.; Kuhn, C.; Scheer, M.; Schulz, B.; Gast, M.; Englisch, U.; Schoeps, A.; Tischer, M.

    2010-06-23

    Helmholtzzentrum Berlin has built an APPLE II undulator for the storage ring PETRA III. The device has a total length of 5m and a minimum gap of 11mm. The high magnetic forces in particular in the inclined mode have been analyzed by means of finite element methods (FEM). Specific mechanic components such as flexible joints have been optimized to cope with the gap- and shift-dependent 3D-forces and a sophisticated control and drive system has been implemented. After completion of the device, detailed laser interferometer measurements for all operation modes have been performed. The data are compared to the FEM simulations.

  19. A high performance inverter-fed drive system of an interior permanent magnet synchronous machine

    SciTech Connect

    Bose, B.K.

    1987-01-01

    A high performance fully operational four-quadrant control scheme of an interior permanent magnet synchronous machine is described. The machine operates smoothly with full performance in constant-torque region as well as in flux-weakening constant-power region in both the directions of motion. The transition between constant-torque region and constant-power region is very smooth at all conditions of operation. The control in constant-torque region is based on vector or field-oriented technique with the direct-axis aligned to the total stator flux, whereas the constant-power region control is implemented by orientation of torque angle of the impressed square-wave voltage through the feedforward vector rotator. The control system is implemented digitally using distributed microcomputer system and all the essential feedback signals, such as torque, flux, etc., are estimated with precision. The control has been described with an outer torque control loop primarily for traction type applications, but speed and position control loops can be easily added to extend its application to other industrial drives. A 70 hp drive system using a Neodymium-Iron-Boron PM machine and transistor PWM inverter has been designed and extensively tested in laboratory on a dynamometer, and performances are found to be excellent.

  20. Improving Energy Efficiency in Pharmaceutical ManufacturingOperations -- Part I: Motors, Drives and Compressed Air Systems

    SciTech Connect

    Galitsky, Christina; Chang, Sheng-chien; Worrell, Ernst; Masanet,Eric

    2006-04-01

    In Part I of this two-part series, we focus on efficient use of motors, drives and pumps, both for process equipment and compressed air systems. Pharmaceutical manufacturing plants in the U.S. spend nearly $1 billion each year for the fuel and electricity they need to keep their facilities running (Figure 1, below). That total that can increase dramatically when fuel supplies tighten and oil prices rise, as they did last year. Improving energy efficiency should be a strategic goal for any plant manager or manufacturing professional working in the drug industry today. Not only can energy efficiency reduce overall manufacturing costs, it usually reduces environmental emissions, establishing a strong foundation for a corporate greenhouse-gas-management program. For most pharmaceutical manufacturing plants, Heating, Ventilation and Air Conditioning (HVAC) is typically the largest consumer of energy, as shown in Table 1 below. This two-part series will examine energy use within pharmaceutical facilities, summarize best practices and examine potential savings and return on investment. In this first article, we will focus on efficient use of motors, drives and pumps, both for process equipment and compressed air systems. Part 2, to be published in May, will focus on overall HVAC systems, building management and boilers.

  1. Apparatus and method for reducing inductive coupling between levitation and drive coils within a magnetic propulsion system

    DOEpatents

    Post, Richard F.

    2001-01-01

    An apparatus and method is disclosed for reducing inductive coupling between levitation and drive coils within a magnetic levitation system. A pole array has a magnetic field. A levitation coil is positioned so that in response to motion of the magnetic field of the pole array a current is induced in the levitation coil. A first drive coil having a magnetic field coupled to drive the pole array also has a magnetic flux which induces a parasitic current in the levitation coil. A second drive coil having a magnetic field is positioned to attenuate the parasitic current in the levitation coil by canceling the magnetic flux of the first drive coil which induces the parasitic current. Steps in the method include generating a magnetic field with a pole array for levitating an object; inducing current in a levitation coil in response to motion of the magnetic field of the pole array; generating a magnetic field with a first drive coil for propelling the object; and generating a magnetic field with a second drive coil for attenuating effects of the magnetic field of the first drive coil on the current in the levitation coil.

  2. Desert landscape irrigation

    SciTech Connect

    Quinones, R.

    1995-06-01

    Industrialization can take place in an arid environment if a long term, overall water management program is developed. The general rule to follow is that recharge must equal or exceed use. The main problem encountered in landscape projects is that everyone wants a lush jungle setting, tall shade trees, ferns, with a variety of floral arrangements mixed in. What we want, what we can afford, and what we get are not always the same. Vegetation that requires large quantities of water are not native to any desert. Surprisingly; there are various types of fruit trees, and vegetables that will thrive in the desert. Peaches, plums, nut trees, do well with drip irrigation as well as tomatoes. Shaded berry plans will also do well, the strawberry being one. In summary; if we match our landscape to our area, we can then design our irrigation system to maintain our landscape and grow a variety of vegetation in any arid or semiarid environment. The application of science and economics to landscaping has now come of age.

  3. Self locking drive system for rotating plug of a nuclear reactor

    DOEpatents

    Brubaker, James E.

    1979-01-01

    This disclosure describes a self locking drive system for rotating the plugs on the head of a nuclear reactor which is able to restrain plug motion if a seismic event should occur during reactor refueling. A servomotor is engaged via a gear train and a bull gear to the plug. Connected to the gear train is a feedback control system which allows the motor to rotate the plug to predetermined locations for refueling of the reactor. The gear train contains a self locking double enveloping worm gear set. The worm gear set is utilized for its self locking nature to prevent unwanted rotation of the plugs as the result of an earthquake. The double enveloping type is used because its unique contour spreads the load across several teeth providing added strength and allowing the use of a conventional size worm.

  4. Merced Irrigation District- PV Buydown Program

    Energy.gov [DOE]

    Merced Irrigation District (MID) offers its residential, commercial and non-profit customers a rebate for installing solar electric photovoltaic (PV) systems on their homes and offices. For 2015,...

  5. Idaho Power- Irrigation Efficiency Rewards Program

    Energy.gov [DOE]

    Idaho Power provides incentives for energy-efficient equipment and design in irrigation systems. Incentives are available for a wide variety of specific equipment types as well as custom projects....

  6. Integrated Cooling System for Induction Motor Traction Drives, CARAT Program Phase Two Final Report

    SciTech Connect

    Konrad, Charles E.

    2002-12-03

    This Program is directed toward improvements in electric vehicle/hybrid electric vehicle traction systems, and in particular, the development of a low cost, highly efficient, compact traction motor-controller system targeted for high volume automotive use. Because of the complex inter-relationships between the motor and the controller, the combination of motor and controller must be considered as a system in the design and evaluation of overall cost and performance. The induction motor is ideally suited for use as a traction motor because of its basic ruggedness, low cost, and high efficiency. As one can see in Figure 1.1, the induction motor traction drive has been continually evolving through a succession of programs spanning the past fifteen years. VPT marketed an induction motor-based traction drive system, the EV2000, which proved to be a reliable, high performance system that was used in a wide range of vehicles. The EV2000 drives evolved from the Modular Electric Vehicle Program (MEVP) and has been used in vehicles ranging in size from 3,000 lb. autos and utility vans, to 32,000 lb. city transit buses. Vehicles powered by the EV2000 induction motor powertrain have accumulated over 2 million miles of service. The EV2000 induction motor system represents 1993 state-of-the-art technology, and evolved from earlier induction motor programs that drove induction motor speeds up to 15,000 rpm to reduce the motor size and cost. It was recognized that the improvements in power density and motor cost sought in the PNGV program could only be achieved through increases in motor speed. Esson’s Rule for motor power clearly states that the power obtainable from a given motor design is the product of motor speed and volume. In order to meet the CARAT Program objectives, the maximum speed goal of the induction motor designed in this Program was increased from 15,000 rpm to 20,000 rpm while maintaining the efficiency and durability demonstrated by lower speed designs done in

  7. Linear motor drive system for continuous-path closed-loop position control of an object

    DOEpatents

    Barkman, William E.

    1980-01-01

    A precision numerical controlled servo-positioning system is provided for continuous closed-loop position control of a machine slide or platform driven by a linear-induction motor. The system utilizes filtered velocity feedback to provide system stability required to operate with a system gain of 100 inches/minute/0.001 inch of following error. The filtered velocity feedback signal is derived from the position output signals of a laser interferometer utilized to monitor the movement of the slide. Air-bearing slides mounted to a stable support are utilized to minimize friction and small irregularities in the slideway which would tend to introduce positioning errors. A microprocessor is programmed to read command and feedback information and converts this information into the system following error signal. This error signal is summed with the negative filtered velocity feedback signal at the input of a servo amplifier whose output serves as the drive power signal to the linear motor position control coil.

  8. Evaluation of 2004 Toyota Prius Hybrid Electric Drive System Interim Report

    SciTech Connect

    Ayers, C.W.

    2004-11-23

    Laboratory tests were conducted to evaluate the electrical and mechanical performance of the 2004 Toyota Prius and its hybrid electric drive system. As a hybrid vehicle, the 2004 Prius uses both a gasoline-powered internal combustion engine and a battery-powered electric motor as motive power sources. Innovative algorithms for combining these two power sources results in improved fuel efficiency and reduced emissions compared to traditional automobiles. Initial objectives of the laboratory tests were to measure motor and generator back-electromotive force (emf) voltages and determine gearbox-related power losses over a specified range of shaft speeds and lubricating oil temperatures. Follow-on work will involve additional performance testing of the motor, generator, and inverter. Information contained in this interim report summarizes the test results obtained to date, describes preliminary conclusions and findings, and identifies additional areas for further study.

  9. EA-1851: Delphi Automotive Systems Electric Drive Vehicle Battery and Component Manufacturing Initiative

    Energy.gov [DOE]

    This EA evaluates the environmental impacts of a proposal to provide a financial assistance grant under the American Recovery and Reinvestment Act of 2009 (ARRA) to Delphi Automotive Systems, Limited Liability Corporation (LLC) (Delphi). Delphi proposes to construct a laboratory referred to as the “Delphi Kokomo, IN Corporate Technology Center” (Delphi CTC Project) and retrofit a manufacturing facility. The project would advance DOE’s Vehicle Technology Program through manufacturing and testing of electric-drive vehicle components as well as assist in the nation’s economic recovery by creating manufacturing jobs in the United States. The Delphi CTC Project would involve the construction and operation of a 10,700 square foot (ft2) utilities building containing boilers and heaters and a 70,000 ft2 engineering laboratory, as well as site improvements (roads, parking, buildings, landscaping,and lighting).

  10. EV Everywhere: Electric Drive Systems Bring Power to Plug-in Electric Vehicles

    Energy.gov [DOE]

    Find out how the Energy Department's Vehicles Technologies Office is helping reduce the cost of plug-in electric vehicles through research and development of electric drive technologies.

  11. Evaluation of 2004 Toyota Prius Hybrid Electic Drive System Interim Report - Revised

    SciTech Connect

    Ayers, C.W.; Hsu, J.S.; Marlino, L.D.; Miller, C.W.; Ott, G.W., Jr.; Oland, C.B.; Burress, T.A.

    2007-07-31

    The 2004 Toyota Prius is a hybrid automobile equipped with a gasoline engine and a battery-powered electric motor. Both of these motive power sources are capable of providing mechanical drive power for the vehicle. The engine can deliver a peak power output of 57 kilowatts (kW) at 5000 revolutions per minute (rpm) while the motor can deliver a peak power output of 50 kW at 1300 rpm. Together, this engine-motor combination has a specified peak power output of 82 kW at a vehicle speed of 85 kilometers per hour (km/h). In operation, the 2004 Prius exhibits superior fuel economy compared to conventionally powered automobiles. Laboratory tests were conducted to evaluate the electrical and mechanical performance of the 2004 Toyota Prius and its hybrid electric drive system. As a hybrid vehicle, the 2004 Prius uses both a gasoline-powered internal combustion engine and a battery-powered electric motor as motive power sources. Innovative algorithms for combining these two power sources results in improved fuel efficiency and reduced emissions compared to traditional automobiles. Initial objectives of the laboratory tests were to measure motor and generator back-electromotive force (emf) voltages and determine gearbox-related power losses over a specified range of shaft speeds and lubricating oil temperatures. Follow-on work will involve additional performance testing of the motor, generator, and inverter. Information contained in this interim report summarizes the test results obtained to date, describes preliminary conclusions and findings, and identifies additional areas for further study.

  12. Best Management Practice #5: Water-Efficient Irrigation

    Energy.gov [DOE]

    Water efficiency must be considered from the initial irrigation system design phase through installation to ensure optimal performance. Consistent management and maintenance is also essential.

  13. Control system to reduce the effects of friction in drive trains of continuous-path-positioning systems. [Patent application

    DOEpatents

    Green, W.L.

    1980-12-01

    An improved continuous-path-positioning servo-control system is provided for reducing the effects of friction arising at very low cutting speeds in the drive trains of numerically controlled cutting machines, and the like. The improvement comprises a feed forward network for altering the gain of the servo-control loop at low positioning velocities to prevent stick-slip movement of the cutting tool holder being positioned by the control system. The feed forward network shunts conventional lag-compensators in the control loop, or loops, so that the error signal used for positioning varies linearly when the value is small, but being limited for larger values. Thus, at higher positioning speeds there is little effect of the added component upon the control being achieved.

  14. Drive Cycle Analysis Tool - DriveCAT | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Drive Cycle Analysis Tool - DriveCAT National Renewable Energy Laboratory Use the Drive Cycle Analysis Tool (DriveCAT) to find drive cycle data for modeling, simulating, and testing vehicle systems and components, or to understand the real-world benefits of drive cycles for specific vehicle applications. This tool was created by NREL's fleet test and evaluation team, which conducts in-service performance evaluations of advanced medium- and heavy-duty fleet vehicles. Evaluation results help

  15. Vehicle Technologies Office Merit Review 2015: Traction Drive Systems with Integrated Wireless Charging

    Office of Energy Efficiency and Renewable Energy (EERE)

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

  16. Reactivity-controlled compression ignition drive cycle emissions and fuel economy estimations using vehicle system simulations

    DOE PAGES [OSTI]

    Curran, Scott J.; Gao, Zhiming; Wagner, Robert M.

    2014-12-22

    In-cylinder blending of gasoline and diesel to achieve reactivity-controlled compression ignition has been shown to reduce NOX and soot emissions while maintaining or improving brake thermal efficiency as compared with conventional diesel combustion. The reactivity-controlled compression ignition concept has an advantage over many advanced combustion strategies in that the fuel reactivity can be tailored to the engine speed and load, allowing stable low-temperature combustion to be extended over more of the light-duty drive cycle load range. In this paper, a multi-mode reactivity-controlled compression ignition strategy is employed where the engine switches from reactivity-controlled compression ignition to conventional diesel combustion whenmore » speed and load demand are outside of the experimentally determined reactivity-controlled compression ignition range. The potential for reactivity-controlled compression ignition to reduce drive cycle fuel economy and emissions is not clearly understood and is explored here by simulating the fuel economy and emissions for a multi-mode reactivity-controlled compression ignition–enabled vehicle operating over a variety of US drive cycles using experimental engine maps for multi-mode reactivity-controlled compression ignition, conventional diesel combustion, and a 2009 port-fuel injected gasoline engine. Drive cycle simulations are completed assuming a conventional mid-size passenger vehicle with an automatic transmission. Multi-mode reactivity-controlled compression ignition fuel economy simulation results are compared with the same vehicle powered by a representative 2009 port-fuel injected gasoline engine over multiple drive cycles. Finally, engine-out drive cycle emissions are compared with conventional diesel combustion, and observations regarding relative gasoline and diesel tank sizes needed for the various drive cycles are also summarized.« less

  17. Reactivity-controlled compression ignition drive cycle emissions and fuel economy estimations using vehicle system simulations

    SciTech Connect

    Curran, Scott J.; Gao, Zhiming; Wagner, Robert M.

    2014-12-22

    In-cylinder blending of gasoline and diesel to achieve reactivity-controlled compression ignition has been shown to reduce NOX and soot emissions while maintaining or improving brake thermal efficiency as compared with conventional diesel combustion. The reactivity-controlled compression ignition concept has an advantage over many advanced combustion strategies in that the fuel reactivity can be tailored to the engine speed and load, allowing stable low-temperature combustion to be extended over more of the light-duty drive cycle load range. In this paper, a multi-mode reactivity-controlled compression ignition strategy is employed where the engine switches from reactivity-controlled compression ignition to conventional diesel combustion when speed and load demand are outside of the experimentally determined reactivity-controlled compression ignition range. The potential for reactivity-controlled compression ignition to reduce drive cycle fuel economy and emissions is not clearly understood and is explored here by simulating the fuel economy and emissions for a multi-mode reactivity-controlled compression ignition–enabled vehicle operating over a variety of US drive cycles using experimental engine maps for multi-mode reactivity-controlled compression ignition, conventional diesel combustion, and a 2009 port-fuel injected gasoline engine. Drive cycle simulations are completed assuming a conventional mid-size passenger vehicle with an automatic transmission. Multi-mode reactivity-controlled compression ignition fuel economy simulation results are compared with the same vehicle powered by a representative 2009 port-fuel injected gasoline engine over multiple drive cycles. Finally, engine-out drive cycle emissions are compared with conventional diesel combustion, and observations regarding relative gasoline and diesel tank sizes needed for the various drive cycles are also summarized.

  18. Idaho Power- Irrigation Efficiency Rewards Rebate Program

    Energy.gov [DOE]

    Through Idaho Power's Irrigation Efficiency Rewards program, agricultural irrigation customers qualify to receive an incentive for a portion of the cost to install a new, more efficient irrigation...

  19. Anti-backlash drive systems for multi-degree freedom devices

    DOEpatents

    Lungwen Tsai; Sunlai Chang.

    1993-09-14

    A new and innovative concept is described for the control of backlash in gear-coupled transmission mechanisms. The concept utilizes redundant unidirectional drives to assure positive coupling of gear meshes at all times. Based on this concept, a methodology for the enumeration of admissible redundant-drive backlash-free robotic mechanisms has been established. Some typical two- and three-DOF mechanisms are disclosed. Furthermore, actuator torques have been derived as functions of either joint torques or end-effector dynamic performance requirements. A redundantly driven gear coupled transmission mechanism manipulator has a fail-safe advantage in that, except of the loss of backlash control, it can continue to function when one of its actuators fails. A two-DOF backlash-free arm has been reduced to practice to demonstrate the principle. 20 figures.

  20. Anti-backlash drive systems for multi-degree freedom devices

    DOEpatents

    Tsai, Lung-Wen; Chang, Sun-Lai

    1993-01-01

    A new and innovative concept for the control of backlash in gear-coupled transmission mechanisms. The concept utilizes redundant unidirectional drives to assure positive coupling of gear meshes at all times. Based on this concept, a methodology for the enumeration of admissible redundant-drive backlash-free robotic mechanisms has been established. Some typical two- and three-DOF mechanisms are disclosed. Furthermore, actuator torques have been derived as functions of either joint torques or end-effector dynamic performance requirements. A redundantly driven gear coupled transmission mechanism manipulator has a fail-safe advantage in that, except of the loss of backlash control, it can continue to function when one of its actuators fails. A two-DOF backlash-free arm has been reduced to practice to demonstrate the principle.

  1. Using ground based geophysics to evaluate hydrogeologic effects of subsurface drip irrigation systems used to manage produced water in the Powder River Basin, Wyoming

    SciTech Connect

    Sams, J.I.; Lipinski, B.A.; Veloski, G.A.

    2008-04-01

    The U.S Department of Energy’s National Energy Technology Laboratory has been evaluating various geophysical methods for site characterization regarding environmental issues associated with fossil fuels including produced water management. A relatively new method of managing produced water from coal bed natural gas production is through subsurface drip irrigation. This system involves disposing the produced water near the bottom of the root zone in agricultural fields, which would provide a beneficial use of this resource. The focus of this paper is to present results from a pre-injection geophysical survey for site assessment and background data. A pre-construction survey of approximately 1.2 km2 was completed in June 2007 using a Geophex GEM-2 broadband sensor over six fields along the Powder River floodplain. Quality assurance measures included drift checks, duplicate line surveys, and repeat field surveys using the Geometrics OhmMapper instrument. Subsequent surveys will be completed once the system is installed and operational. Geophysical inversion models were completed to provide a detailed cross-section of the subsurface geoelectrical structure along each line. Preliminary interpretations reveal that the subsurface conductivity distribution correlates to geomorphologic features.

  2. Irrigation and the demand for electricity. Progress report

    SciTech Connect

    Maddigan, R. J.; Chern, W. S.; Gallagher, C. A.

    1980-03-01

    In order to anticipate the need for generating capacity, utility planners must estimate the future growth in electricity demand. The need for demand forecasts is no less important for the nation's Rural Electric Cooperatives (RECs) than it is for the investor-owned utilities. The RECs serve an historically agrarian region; therefore, the irrigation sector accounts for a significant portion of the western RECs' total demand. A model is developed of the RECs' demand for electricity used in irrigation. The model is a simultaneous equation system which focuses on both the short-run utilization of electricity in irrigation and the long-run determination of the number of irrigators using electricity. Irrigation demand is described by a set of equations in which the quantity of electricity demanded, the average electricity price, the number of irrigation customers, and the ratio of electricity to total energy used for irrigation are endogenous. The structural equations are estimated using pooled state-level data for the period 1961-1977. In light of the model's results, the impact of changes in relative energy prices on irrigation can be examined.

  3. South San Joaquin Irrigation District

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Benefits of Local Control * Local accountability and transparency * Rate design based on ... service, innovation Utility Business Models * Rural Electric Co-ops * Irrigation ...

  4. Method and system for determining the torque required to launch a vehicle having a hybrid drive-train

    DOEpatents

    Hughes, Douglas A.

    2006-04-04

    A method and system are provided for determining the torque required to launch a vehicle having a hybrid drive-train that includes at least two independently operable prime movers. The method includes the steps of determining the value of at least one control parameter indicative of a vehicle operating condition, determining the torque required to launch the vehicle from the at least one determined control parameter, comparing the torque available from the prime movers to the torque required to launch the vehicle, and controlling operation of the prime movers to launch the vehicle in response to the comparing step. The system of the present invention includes a control unit configured to perform the steps of the method outlined above.

  5. Overview of the Safety Issues Associated with the Compressed Natural Gas Fuel System and Electric Drive System in a Heavy Hybrid Electric Vehicle

    SciTech Connect

    Nelson, S.C.

    2002-11-14

    This report evaluates the hazards that are unique to a compressed-natural-gas (CNG)-fueled heavy hybrid electric vehicle (HEV) design compared with a conventional heavy vehicle. The unique design features of the heavy HEV are the CNG fuel system for the internal-combustion engine (ICE) and the electric drive system. This report addresses safety issues with the CNG fuel system and the electric drive system. Vehicles on U. S. highways have been propelled by ICEs for several decades. Heavy-duty vehicles have typically been fueled by diesel fuel, and light-duty vehicles have been fueled by gasoline. The hazards and risks posed by ICE vehicles are well understood and have been generally accepted by the public. The economy, durability, and safety of ICE vehicles have established a standard for other types of vehicles. Heavy-duty (i.e., heavy) HEVs have recently been introduced to U. S. roadways, and the hazards posed by these heavy HEVs can be compared with the hazards posed by ICE vehicles. The benefits of heavy HEV technology are based on their potential for reduced fuel consumption and lower exhaust emissions, while the disadvantages are the higher acquisition cost and the expected higher maintenance costs (i.e., battery packs). The heavy HEV is more suited for an urban drive cycle with stop-and-go driving conditions than for steady expressway speeds. With increasing highway congestion and the resulting increased idle time, the fuel consumption advantage for heavy HEVs (compared with conventional heavy vehicles) is enhanced by the HEVs' ability to shut down. Any increase in fuel cost obviously improves the economics of a heavy HEV. The propulsion system for a heavy HEV is more complex than the propulsion system for a conventional heavy vehicle. The heavy HEV evaluated in this study has in effect two propulsion systems: an ICE fueled by CNG and an electric drive system with additional complexity and failure modes. This additional equipment will result in a less

  6. A microcomputer-based control and simulation of an advanced IPM (interior permanent magnet) synchronous machine drive system for electric vehicle propulsion

    SciTech Connect

    Bose, B.K.; Szczesny, P.M.

    1987-01-01

    Advanced digital control and computer-aided control system design techniques are playing key roles in the complex drive system design and control implementation. The paper describes a high performance microcomputer-based control and digital simulation of an inverter-fed interior permanent magnet (IPM) synchronous machine which uses Neodymium-Iron-Boron magnet. The fully operational four-quadrant drive system includes constant-torque region with zero speed operation and high speed field-weakening constant-power region. The control uses vector or field-oriented technique in constant-torque region with the direct axis aligned to the stator flux, whereas the constant-power region control is based on torque angle orientation of the impressed square-wave voltage. All the key feedback signals for the control are estimated with precision. The drive system is basically designed with an outer torque control loop for electric vehicle appliation, but speed and position control loops can be added for other industrial applications. The distributed microcomputer-based control system is based on Intel-8096 microcontroller and Texas Instruments TMS32010 type digital signal processor. The complete drive system has been simulated using the VAX-based simulation language SIMMON to verify the feasibility of the control laws and to study the performances of the drive system. The simulation results are found to have excellent correlation with the laboratory breadboard tests. 19 refs., 14 figs., 5 tabs.

  7. Merced Irrigation District | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Irrigation District Place: California Website: mercedid.com Twitter: @MercedID Facebook: https:www.facebook.comMercedIrrigationDistrict Outage Hotline: 209-722-3041...

  8. Increasing water holding capacity for irrigation

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    determine the sources of sediment and recommend solutions for irrigation sediment buildup management. April 3, 2012 Santa Cruz Irrigation District (SCID) Kenny Salazar, owner of...

  9. Government of Maharashtra irrigation Department GOMID | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    irrigation Department (GOMID) Place: Maharashtra, India Sector: Hydro Product: Mumbai-based small hydro project developer. References: Government of Maharashtra irrigation...

  10. Idaho Power- Irrigation Efficiency Rewards Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Through Idaho Power's Irrigation Efficiency Rewards program, agricultural irrigation customers can qualify to receive an incentive for a portion of the cost to install a new, more efficient...

  11. Electric Drive Dynamic Thermal System Model for Advanced Vehicle Propulsion Technologies: Cooperative Research and Development Final Report, CRADA Number CRD-09-360

    SciTech Connect

    Bennion, K.

    2013-10-01

    Electric drive systems, which include electric machines and power electronics, are a key enabling technology for advanced vehicle propulsion systems that reduce the dependence of the U.S. transportation sector on petroleum. However, to penetrate the market, these electric drive technologies must enable vehicle solutions that are economically viable. The push to make critical electric drivesystems smaller, lighter, and more cost-effective brings respective challenges associated with heat removal and system efficiency. In addition, the wide application of electric drive systems to alternative propulsion technologies ranging from integrated starter generators, to hybrid electric vehicles, to full electric vehicles presents challenges in terms of sizing critical components andthermal management systems over a range of in-use operating conditions. This effort focused on developing a modular modeling methodology to enable multi-scale and multi-physics simulation capabilities leading to generic electric drive system models applicable to alternative vehicle propulsion configurations. The primary benefit for the National Renewable Energy Laboratory (NREL) is the abilityto define operating losses with the respective impact on component sizing, temperature, and thermal management at the component, subsystem, and system level. However, the flexible nature of the model also allows other uses related to evaluating the impacts of alternative component designs or control schemes depending on the interests of other parties.

  12. Statistical Characterization of School Bus Drive Cycles Collected via Onboard Logging Systems

    SciTech Connect

    Duran, A.; Walkowicz, K.

    2013-10-01

    In an effort to characterize the dynamics typical of school bus operation, National Renewable Energy Laboratory (NREL) researchers set out to gather in-use duty cycle data from school bus fleets operating across the country. Employing a combination of Isaac Instruments GPS/CAN data loggers in conjunction with existing onboard telemetric systems resulted in the capture of operating information for more than 200 individual vehicles in three geographically unique domestic locations. In total, over 1,500 individual operational route shifts from Washington, New York, and Colorado were collected. Upon completing the collection of in-use field data using either NREL-installed data acquisition devices or existing onboard telemetry systems, large-scale duty-cycle statistical analyses were performed to examine underlying vehicle dynamics trends within the data and to explore vehicle operation variations between fleet locations. Based on the results of these analyses, high, low, and average vehicle dynamics requirements were determined, resulting in the selection of representative standard chassis dynamometer test cycles for each condition. In this paper, the methodology and accompanying results of the large-scale duty-cycle statistical analysis are presented, including graphical and tabular representations of a number of relationships between key duty-cycle metrics observed within the larger data set. In addition to presenting the results of this analysis, conclusions are drawn and presented regarding potential applications of advanced vehicle technology as it relates specifically to school buses.

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

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Computer-Aided Engineering for Electric-Drive Vehicle Batteries - Sandia Energy Energy ... Energy Storage Components and Systems Batteries Electric Drive Systems Hydrogen Materials ...

  14. DrivePy

    Energy Science and Technology Software Center

    2014-08-30

    DrivePy is physics-based drivetrain model that sizes drivetrain components based on aerodynamic and operational loads for use in a systems engineering model. It also calculates costs based on empirical data collected by NREL's National Wind Technology Center.

  15. Electric Drive Systems

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Transportation Energy Co-Evolution of Biofuels Lignocellulosic Biomass Microalgae ... Transportation Energy Co-Evolution of Biofuels Biofuels Publications Lignocellulosic ...

  16. Traction Drive System Modeling

    Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  17. PP-174 Imperial Irrigation District | Department of Energy

    Energy Saver

    4 Imperial Irrigation District PP-174 Imperial Irrigation District Presidential permit authorizing Imperial Irrigation District to construct, operate, and maintain electric ...

  18. Drive reconfiguration mechanism for tracked robotic vehicle

    DOEpatents

    Willis, W. David

    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.

  19. Irrigation Hardware Upgrades

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    reduce system pressure, causing a poor sprinkler distribution pattern, reducing system efficiency and increasing costs. As motors have to work harder to make for the loss in...

  20. Economic impacts of irrigation load management controls

    SciTech Connect

    Taylor, D.C. )

    1988-01-01

    Irrigators subject to load management controls experience electric power interruptions during periods of peak power demand. The resulting interruptions in irrigation pumping may result in moisture stress-induced crop yield reductions. The results of analysis show a great sensitivity of irrigator incomes to such yield losses. The sensitivity is of such a magnitude that rural electric cooperatives (RECs) would have to offer load management incentives of at least five times their monthly demand charges for irrigators under typical conditions (not oversized irrigation pumps) to remain under load control when irrigated crops are experiencing yield-reducing moisture stress. Incentives of this magnitude cannot be economically justified by most RECs. Thus, provision for the voluntary withdrawal of irrigators from load control is an essential feature of most workable and effective irrigation laod management programs.

  1. Measuring Transpiration to Regulate Winter Irrigation Rates

    SciTech Connect

    Samuelson, Lisa [Auburn University] [Auburn University

    2006-11-08

    Periodic transpiration (monthly sums) in a young loblolly pine plantation between ages 3 and 6 was measured using thermal dissipation probes. Fertilization and fertilization with irrigation were better than irrigation alone in increasing transpiration of young loblolly pines during winter months, apparently because of increased leaf area in fertilized trees. Irrigation alone did not significantly increase transpiration compared with the non-fertilized and non-irrigated control plots.

  2. Stand-alone irrigation pumping with wind energy

    SciTech Connect

    Clark, R.N.

    1982-12-01

    Windpower is one of the oldest forms of energy used for pumping water. Several thousand windmills are still used today to provide water for livestock and domestic needs. Because of the large water volume needed for irrigation, irrigators have selected natural gas, electricity, or diesel fuel as power sources for their irrigation pump. Wind turbines have been successfully used to generate electricity to supplement electrical requirements of irrigation systems; however, not all irrigation pumps have electricity readily available. Because of the need for an independent, high-volume pumping system powered by the wind, the USDA-ARS, Bushland, TX and the Alternative Energy Institute, Canyon, TX have designed and constructed a stand-alone wind-powered pumping system. The initial effort was an in-depth study of all types of pumps in order to locate a pump which could deliver a steady 15-to-20 l/s flow rate while the input power varied in rpm and torque. A progressive-cavity pump was selected as being best for use in moderate and deep well applications where the total head was more than 15 m. A 10-cm progressive-cavity pump was purchased and installed on a 4-kW vertical-axis wind turbine with a mechanical linkage between the wind turbine and pump. Performance data indicated that flow was 10 l/s, and head 12 m at a windspeed of 16 m/s. When the windspeed dropped to 9 m/s, the pumping load caused the wind turbine to stall. Because of the highly variable power output of the wind turbine, no presently-manufactured pump is satisfactory for stand-alone irrigation pumping.

  3. Air-Cooled Stack Freeze Tolerance Freeze Failure Modes and Freeze Tolerance Strategies for GenDriveTM Material Handling Application Systems and Stacks Final Scientific Report

    SciTech Connect

    Hancock, David, W.

    2012-02-14

    Air-cooled stack technology offers the potential for a simpler system architecture (versus liquid-cooled) for applications below 4 kilowatts. The combined cooling and cathode air allows for a reduction in part count and hence a lower cost solution. However, efficient heat rejection challenges escalate as power and ambient temperature increase. For applications in ambient temperatures below freezing, the air-cooled approach has additional challenges associated with not overcooling the fuel cell stack. The focus of this project was freeze tolerance while maintaining all other stack and system requirements. Through this project, Plug Power advanced the state of the art in technology for air-cooled PEM fuel cell stacks and related GenDrive material handling application fuel cell systems. This was accomplished through a collaborative work plan to improve freeze tolerance and mitigate freeze-thaw effect failure modes within innovative material handling equipment fuel cell systems designed for use in freezer forklift applications. Freeze tolerance remains an area where additional research and understanding can help fuel cells to become commercially viable. This project evaluated both stack level and system level solutions to improve fuel cell stack freeze tolerance. At this time, the most cost effective solutions are at the system level. The freeze mitigation strategies developed over the course of this project could be used to drive fuel cell commercialization. The fuel cell system studied in this project was Plug Power's commercially available GenDrive platform providing battery replacement for equipment in the material handling industry. The fuel cell stacks were Ballard's commercially available FCvelocity 9SSL (9SSL) liquid-cooled PEM fuel cell stack and FCvelocity 1020ACS (Mk1020) air-cooled PEM fuel cell stack.

  4. FMC high power density electric drive technology

    SciTech Connect

    Shafer, G.A.

    1994-12-31

    FMC has developed a unique capability in energy-efficient, high-performance AC induction electric drive systems for electric and hybrid vehicles. These drives will not only be important to future military ground combat vehicles, but will also provide significant competitive advantages to industrial and commercial machinery and vehicles. The product line under development includes drive motors and associated power converters directed at three power/vehicle weight classes. These drive systems cover a broad spectrum of potential vehicle applications, ranging from light pickup trucks to full-size transit buses. The drive motors and power converters are described.

  5. Mechanical drive for blood pump

    DOEpatents

    Bifano, N.J.; Pouchot, W.D.

    1975-07-29

    This patent relates to a highly efficient blood pump to be used as a replacement for a ventricle of the human heart to restore people disabled by heart disease. The mechanical drive of the present invention is designed to operate in conjunction with a thermoelectric converter power source. The mechanical drive system essentially converts the output of a rotary power into pulsatile motion so that the power demand from the thermoelectric converter remains essentially constant while the blood pump output is pulsed. (auth)

  6. Holiday Food Drive 2016

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Food Drive 2016 Holiday Food Drive 2016 Helping feed Northern New Mexico families...reaching out to Northern New Mexico communities. September 16, 2013 LANL employees organize food for the Holiday Food Drive. Contacts Annual Food & Holiday Gift Drives Mike Martinez (505) 699-3388 Community Partnerships Office (505) 665-4400 Email Participate in Laboratory's annual food collection drive-through Nov. 17 Laboratory employees can continue to make a difference in the lives of others in local

  7. DropBot: An open-source digital microfluidic control system with precise control of electrostatic driving force and instantaneous drop velocity measurement

    SciTech Connect

    Fobel, Ryan; Donnelly Centre for Cellular and Biomolecular Research, 160 College St., Toronto, Ontario M5S 3E1 ; Fobel, Christian; Wheeler, Aaron R.; Donnelly Centre for Cellular and Biomolecular Research, 160 College St., Toronto, Ontario M5S 3E1; Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario M5S 3H6

    2013-05-13

    We introduce DropBot: an open-source instrument for digital microfluidics (http://microfluidics.utoronto.ca/dropbot). DropBot features two key functionalities for digital microfluidics: (1) real-time monitoring of instantaneous drop velocity (which we propose is a proxy for resistive forces), and (2) application of constant electrostatic driving forces through compensation for amplifier-loading and device capacitance. We anticipate that this system will enhance insight into failure modes and lead to new strategies for improved device reliability, and will be useful for the growing number of users who are adopting digital microfluidics for automated, miniaturized laboratory operation.

  8. Viability of Small Wind Distributed Generation for Farmers Who Irrigate (Poster)

    SciTech Connect

    Meadows, B.; Forsyth, T.; Johnson, S.; Healow, D.

    2010-05-01

    About 14% of U.S. farms are irrigated, representing 55 million acres of irrigated land. Irrigation on these farms is a major energy user in the United States, accounting for one-third of water withdrawals and 137 billion gallons per day. More than half of the Irrigation systems use electric energy. Wind energy can be a good choice for meeting irrigation energy needs. Nine of the top 10 irrigation states (California, Texas, Idaho, Arkansas, Colorado, Nebraska, Arizona, Kansas, Washington, and Oregon) have good to excellent wind resources. Many rural areas have sufficient wind speeds to make wind an attractive alternative, and farms and ranches can often install a wind energy system without impacting their ability to plant crops and graze livestock. Additionally, the rising and uncertain future costs of diesel, natural gas, and even electricity increase the potential effectiveness for wind energy and its predictable and competitive cost. In general, wind-powered electric generation systems generate more energy in the winter months than in the summer months when most crops need the water. Therefore, those states that have a supportive net metering policy can dramatically impact the viability of an onsite wind turbine. This poster presentation highlights case studies that show favorable and unfavorable policies that impact the growth of small wind in this important sector and demonstrate how net metering policies affect the viability of distributed wind generation for farmers who irrigate.

  9. Turlock Irrigation District | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    @TurlockID Facebook: https:www.facebook.compagesTurlock-Irrigation-District112344728820408 Outage Hotline: 209-883-8301 or (209) 892-4936 (from Patterson) Outage Map:...

  10. Irrigation, Navigation Flood Control and Recreation

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Irrigation,-Navigation-Flood-Control-and-Recreation- Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand...

  11. Nevada Irrigation District | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    search Name: Nevada Irrigation District Place: California Website: nidwater.com Outage Hotline: (530) 273-6185 References: EIA Form EIA-861 Final Data File for 2010 -...

  12. Consider Steam Turbine Drives for Rotating Equipment | Department of Energy

    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 as part of optimized steam systems. STEAM TIP SHEET #21 Consider Steam Turbine Drives for Rotating Equipment (January 2012) (398.66 KB) More Documents & Publications Improving Steam System Performance: A Sourcebook for Industry, Second Edition Adjustable Speed Drive Part-Load Efficiency Benchmark the Fuel Cost of

  13. Modified Streamflows 1990 Level of Irrigation : Columbia River and Coastal Basins, 1928-1989.

    SciTech Connect

    United States. Bonneville Power Administration; A.G. Crook Company

    1993-04-01

    The annual operation plans described in the following sections require detailed system regulation computer model studies. These system regulation studies are necessary to evaluate potential new projects and to develop operational rule curves for the existing system of projects. The objective is to provide a basis for evaluating alternative system regulation scenarios. This provides essential input for optimizing the management of existing projects and planning future projects for the most beneficial use of the water supply and resources in the entire region. Historical streamflows per se are inadequate for system regulation studies because the pattern of observed flow has continually changed with each successive stage of irrigation and e development. The problem, therefore, is to adjust for past operation of storage projects and to determine the necessary adjustments that should be made to recorded flows to reflect current stages of irrigation development. Historical flows which have been adjusted to a common level of irrigation development by correcting for the effects of diversion demand, return flow, and change-of-contents and evaporation in upstream reservoirs and lakes are referred to as modified flows. This report describes the development of irrigation depletion adjustments and modified flows for the 1990 level of development for the 61-year period 1928--1989. incremental depletion adjustments were computed in this report for each month of the 61-year period to adjust the effects of actual irrigation in each year up to that which would have been experienced with the irrigation as practiced in 1990.

  14. Modeling the Effects of Groundwater-fed Irrigation on Terrestrial Hydrology over the Conterminous United States

    SciTech Connect

    Leng, Guoyong; Huang, Maoyi; Tang, Qiuhong; Gao, Huilin; Leung, Lai-Yung R.

    2014-06-01

    Human alteration of the land surface hydrologic cycle is substantial. Recent studies suggest that local water management practices including groundwater pumping and irrigation could significantly alter the quantity and distribution of water in the terrestrial system, with potential impacts on weather and climate through land-atmosphere feedbacks. In this study, we incorporated a groundwater withdrawal scheme into the Community Land Model version 4 (CLM4). To simulate the impact of irrigation realistically, we calibrated the CLM4 simulated irrigation amount against observations from agriculture census at the county scale over the conterminous United States (CONUS). The water used for irrigation was then removed from the surface runoff and groundwater aquifer according to a ratio determined from the county-level agricultural census data. Based on the simulations, the impact of groundwater withdrawals for irrigation on land surface and subsurface fluxes were investigated. Our results suggest that the impacts of irrigation on latent heat flux and potential recharge when water is withdrawn from surface water alone or from both surface and groundwater are comparable and local to the irrigation areas. However, when water is withdrawn from groundwater for irrigation, greater effects on the subsurface water balance were found, leading to significant depletion of groundwater storage in regions with low recharge rate and high groundwater exploitation rate. Our results underscore the importance of local hydrologic feedbacks in governing hydrologic response to anthropogenic change in CLM4 and the need to more realistically simulate the two-way interactions among surface water, groundwater, and atmosphere to better understand the impacts of groundwater pumping on irrigation efficiency and climate.

  15. Drill drive mechanism

    DOEpatents

    Dressel, Michael O.

    1979-01-01

    A drill drive mechanism is especially adapted to provide both rotational drive and axial feed for a drill of substantial diameter such as may be used for drilling holes for roof bolts in mine shafts. The drill shaft is made with a helical pattern of scroll-like projections on its surface for removal of cuttings. The drill drive mechanism includes a plurality of sprockets carrying two chains of drive links which are arranged to interlock around the drill shaft with each drive link having depressions which mate with the scroll-like projections. As the chain links move upwardly or downwardly the surfaces of the depressions in the links mate with the scroll projections to move the shaft axially. Tangs on the drive links mate with notch surfaces between scroll projections to provide a means for rotating the shaft. Projections on the drive links mate together at the center to hold the drive links tightly around the drill shaft. The entire chain drive mechanism is rotated around the drill shaft axis by means of a hydraulic motor and gear drive to cause rotation of the drill shaft. This gear drive also connects with a differential gearset which is interconnected with a second gear. A second motor is connected to the spider shaft of the differential gearset to produce differential movement (speeds) at the output gears of the differential gearset. This differential in speed is utilized to drive said second gear at a speed different from the speed of said gear drive, this speed differential being utilized to drive said sprockets for axial movement of said drill shaft.

  16. Stirling Engines and Irrigation Pumping

    SciTech Connect

    West, C.D.

    1987-01-01

    This report was prepared in support of the Renewable Energy Applications and Training Project that is sponsored by the U.S. Agency for International Development for which ORNL provides technical assistance. It briefly outlines the performance that might be achievable from various kinds of Stirling-engine-driven irrigation pumps. Some emphasis is placed on the very simple liquid-piston engines that have been the subject of research in recent years and are suitable for manufacture in less well-developed countries. In addition to the results quoted here (possible limits on M4 and pumping head for different-size engines and various operating conditions), the method of calculation is described in sufficient detail for engineers to apply the techniques to other Stirling engine designs for comparison.

  17. Electric-drive tractability indicator integrated in hybrid electric vehicle tachometer

    SciTech Connect

    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.

  18. Holiday Gift Drive

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Gift Drive Holiday Gift Drive Every year, Laboratory employees help fulfill the holiday wishes of children and seniors in our communities. In 2015, our employees donated more than 1,200 gifts to 23 nonprofit organizations to help Northern New Mexico citizens have a brighter holiday season. May 7, 2015 Every holiday season, employees of Los Alamos National Laboratory donate and distribute gifts to families in need throughout Northern New Mexico. Contacts Annual Food & Holiday Gift Drives Mike

  19. Driving/Idling Resources

    Energy.gov [DOE]

    While transportation efficiency policies are often implemented under local governments, national and state programs can play supportive roles in reducing vehicle miles traveled. Find driving/idling...

  20. Holiday Food Drive

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Community Programs Office (505) 665-4400 Email Get Expertise Helping feed Northern New Mexico families During the Laboratory's 2015 Annual Food Drive, employees and subcontract...

  1. Variable Frequency Drives

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Marketing Toolkit The Benefits of Variable Frequency Drives (VFDs) VFDs help adjust motor speeds to match loads and improve efficiency while conserving energy. The benefits...

  2. Piezoelectric drive circuit

    DOEpatents

    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.

  3. Piezoelectric drive circuit

    DOEpatents

    Treu, Jr., Charles A.

    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.

  4. DRIVE(tm) Mobile App | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    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...

  5. Consider Steam Turbine Drives for Rotating Equipment

    SciTech Connect

    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.

  6. Google Drive for Work | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Google Drive for Work Google Drive for Work Computer.png Welcome to the U.S. Department of Energy Pilot Program, Google Drive for Work. Please read and sign the Terms of Use and Privacy Statement below. DISCLAIMER All data is owned by DOE and may be monitored, intercepted, recorded, read, copied, or captured in any manner and disclosed in any manner, by authorized personnel. THERE IS NO RIGHT OF PRIVACY IN THIS SYSTEM, and system personnel may give to law enforcement officials any potential

  7. A thermo-mechanical correlation with driving forces for hcp martensite and twin formations in the Fe–Mn–C system exhibiting multicomposition sets

    DOE PAGES [OSTI]

    Nakano, Jinichiro

    2013-03-15

    Thermodynamic properties of the Fe-Mn-C system were investigated by using an analytical model constructed by a CALPHAD approach. Stacking fault energy (SFE) of the fcc structure with respect to the hcp phase was always constant at T0, independent of composition and temperature when the other related parameters were assumed to be constant. Experimental limits for the thermal hcp formation and the mechanical (deformation-induced) hcp formation were separated by the SFE at T0. The driving force for the fcc to hcp transition, defined as a dimensionless value –dGm/(RT), was determined in the presence of Fe-rich and Mn-rich composition sets in eachmore » phase. Carbon tended to partition to the Mn-rich phase rather than to the Fe-rich phase for the studied compositions. The obtained results revealed a thermo-mechanical correlation with empirical yield strength, maximum true stress and maximum true strain. The proportionality between thermodynamics and mechanical properties is discussed.« less

  8. A thermo-mechanical correlation with driving forces for hcp martensite and twin formations in the Fe–Mn–C system exhibiting multicomposition sets

    SciTech Connect

    Nakano, Jinichiro

    2013-03-15

    Thermodynamic properties of the Fe-Mn-C system were investigated by using an analytical model constructed by a CALPHAD approach. Stacking fault energy (SFE) of the fcc structure with respect to the hcp phase was always constant at T0, independent of composition and temperature when the other related parameters were assumed to be constant. Experimental limits for the thermal hcp formation and the mechanical (deformation-induced) hcp formation were separated by the SFE at T0. The driving force for the fcc to hcp transition, defined as a dimensionless value –dGm/(RT), was determined in the presence of Fe-rich and Mn-rich composition sets in each phase. Carbon tended to partition to the Mn-rich phase rather than to the Fe-rich phase for the studied compositions. The obtained results revealed a thermo-mechanical correlation with empirical yield strength, maximum true stress and maximum true strain. The proportionality between thermodynamics and mechanical properties is discussed.

  9. Frequency modulation drive for a piezoelectric motor

    DOEpatents

    Mittas, Anthony

    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.

  10. Control rod drive

    DOEpatents

    Hawke, Basil C.

    1986-01-01

    A control rod drive uses gravitational forces to insert one or more control rods upwardly into a reactor core from beneath the reactor core under emergency conditions. The preferred control rod drive includes a vertically movable weight and a mechanism operatively associating the weight with the control rod so that downward movement of the weight is translated into upward movement of the control rod. The preferred control rod drive further includes an electric motor for driving the control rods under normal conditions, an electrically actuated clutch which automatically disengages the motor during a power failure and a decelerator for bringing the control rod to a controlled stop when it is inserted under emergency conditions into a reactor core.

  11. Ride and Drive Webinar

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

    Energy Saver

    US DRIVE Driving Research and Innovation for Vehicle Efficiency and Energy Sustainability Partnership Plan This document describes the vision, mission, scope, and governing ...

  13. Direct drive wind turbine

    DOEpatents

    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.

  14. Direct drive wind turbine

    DOEpatents

    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.

  15. Direct drive wind turbine

    DOEpatents

    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.

  16. Direct drive wind turbine

    DOEpatents

    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.

  17. CONTROL ROD DRIVE

    DOEpatents

    Chapellier, R.A.

    1960-05-24

    BS>A drive mechanism was invented for the control rod of a nuclear reactor. Power is provided by an electric motor and an outside source of fluid pressure is utilized in conjunction with the fluid pressure within the reactor to balance the loadings on the motor. The force exerted on the drive mechanism in the direction of scramming the rod is derived from the reactor fluid pressure so that failure of the outside pressure source will cause prompt scramming of the rod.

  18. Vehicle Technologies Office: 2014 Electric Drive Technologies Annual

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Progress Report | Department of Energy Electric Drive Technologies Annual Progress Report Vehicle Technologies Office: 2014 Electric Drive Technologies Annual Progress Report The Electric Drive Technologies research and development (R&D) subprogram within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies under development. Research is focused on developing power electronics (PE), electric motor, and traction drive system

  19. Control rod drive for reactor shutdown

    DOEpatents

    McKeehan, Ernest R.; Shawver, Bruce M.; Schiro, Donald J.; Taft, William E.

    1976-01-20

    A means for rapidly shutting down or scramming a nuclear reactor, such as a liquid metal-cooled fast breeder reactor, and serves as a backup to the primary shutdown system. The control rod drive consists basically of an in-core assembly, a drive shaft and seal assembly, and a control drive mechanism. The control rod is driven into the core region of the reactor by gravity and hydraulic pressure forces supplied by the reactor coolant, thus assuring that common mode failures will not interfere with or prohibit scramming the reactor when necessary.

  20. U.S. DRIVE

    SciTech Connect

    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.

  1. Ceramic vane drive joint

    DOEpatents

    Smale, Charles H.

    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.

  2. Collaboration drives achievement in protein structure research

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Collaboration drives achievement in protein structure research Alumni Link: Opportunities, News and Resources for Former Employees Latest Issue:September 2015 all issues All Issues » submit Collaboration drives achievement in protein structure research By tracking down how bacterial defense systems work, the scientists can potentially fight infectious diseases and genetic disorders November 1, 2014 Thomas Terwilliger Thomas Terwilliger Contact Linda Anderman Email When a recent print issue of

  3. CONTROL ROD DRIVE

    DOEpatents

    Chapellier, R.A.; Rogers, I.

    1961-06-27

    Accurate and controlled drive for the control rod is from an electric motor. A hydraulic arrangement is provided to balance a piston against which a control rod is urged by the application of fluid pressure. The electric motor drive of the control rod for normal operation is made through the aforementioned piston. In the event scramming is required, the fluid pressure urging the control rod against the piston is relieved and an opposite fluid pressure is applied. The lack of mechanical connection between the electric motor and control rod facilitates the scramming operation.

  4. Forest Irrigation Of Tritiated Water: A Proven Tritiated Water Management Tool

    SciTech Connect

    Vangelas, Karen; Blount, Gerald; Kmetz, Thomas; Prater, Phil

    2012-11-08

    Tritium releases from the Old Radioactive Waste Burial Ground (ORWBG) at the SRS in South Carolina has impacted groundwater and surface water. Tritiated groundwater plumes discharge into Fourmile Branch which is a small tributary of the Savannah River, a regional water resource. Taking advantage of the groundwater flow paths and the local topography a water collection and irrigation system was constructed and has been used at the SRS for over a decade to reduce these tritiated water releases to Fourmile Branch. The tritiated water is transferred to the atmosphere by evaporation from the pond surface, and after irrigation, wetted surface evaporation and evapotranspiration through the forest vegetation. Over the last decade SRS has irrigated over 120,000,000 gallons of tritiated water, which diverted over 6000 curies away from Fourmile Branch and the Savannah River. The system has been effective in reducing the flux of tritiated groundwater by approximately 70%. Mass balance studies of tritium in the forest soils before operations and over the last decade indicate that approximately 90% of the tritiated water that is irrigated is transferred to the atmosphere. Dose studies indicate that exposure to site workers and offsite maximally exposed individual is very low, approximately 6 mrem/year and 0.004 mrem/year, respectively. To consistently meet the flux reduction goal of tritium into Fourmile Branch optimization activities are proposed. These efforts will increase irrigation capacity and area. An additional 17 acres are proposed for an expansion of the area to be irrigated and a planting of approximately 40 acres of pine forest plantations is underway to expand irrigation capacity. Co-mingled with the tritiated groundwater are low concentrations of chlorinated volatile organic compounds (cVOCs), and 1,4-dioxane. Research studies and SRS field data indicate the forest irrigation system may have an added benefit of reducing the mass of these co-contaminants via

  5. Vehicle Technologies Office: Materials for Hybrid and Electric Drive

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Systems | Department of Energy Hybrid and Electric Drive Systems Vehicle Technologies Office: Materials for Hybrid and Electric Drive Systems The Vehicle Technologies Office (VTO) is working to lower the cost and increase the convenience of electric drive vehicles, which include hybrid and plug-in electric vehicles. These vehicles use advanced power electronics and electric motors that face barriers because their subcomponents have specific material limitations. Novel propulsion materials

  6. AmeriFlux US-Ne2 Mead - irrigated maize-soybean rotation site

    DOE Data Explorer

    Suyker, Andy [University of Nebraska - Lincoln

    2016-01-01

    This is the AmeriFlux version of the carbon flux data for the site US-Ne2 Mead - irrigated maize-soybean rotation site. Site Description - The study site is one of three fields (all located within 1.6 km of each other) at the University of Nebraska Agricultural Research and Development Center near Mead, Nebraska. This site is irrigated with a center pivot system. Prior to the initiation of the study, the irrigated site had a 10-yr history of maize-soybean rotation under no-till. A tillage operation (disking) was done just prior to the 2001 planting to homogenize the top 0.1 m of soil, incorporate P and K fertilizers, as well as previously accumulated surface residues. Since this tillage operation, the site has been under no-till management.

  7. The Drive for Energy Diversity and Sustainability: The Impact...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Sustainability: The Impact on Transportation Fuels and Propulsion System Portfolios The Drive for Energy Diversity and Sustainability: The Impact on Transportation Fuels and...

  8. Direct Drive Wave Energy Buoy | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Direct Drive Wave Energy Buoy 15direcolumbiapowerrhinefrank.ppt (1.58 MB) More Documents & Publications Wave Tank WEC Array Analysis Ocean Power Technologies (TRL 7 8 System) - ...

  9. EV Everywhere EV Everywhere Grand Challenge - Electric Drive...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    first in the world to produce plug-in electric vehicles (PEVs) that are as affordable and ... BREAKOUT SESSION 1: (three groups) * Traction Drive System * Power Electronics and ...

  10. Universal power transistor base drive control unit

    DOEpatents

    Gale, Allan R.; Gritter, David J.

    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.

  11. Universal power transistor base drive control unit

    DOEpatents

    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.

  12. Minimize Adverse Motor and Adjustable Speed Drive Interactions

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Minimize Adverse Motor and Adjustable Speed Drive Interactions Electronic adjustable speed drives (ASDs) are extremely effcient and valuable assets to motor systems. They allow precise process control and provide energy savings within systems that do not need to operate continuously at full output. The most common ASD design sold today is the pulse-width-modulated (PWM) variable frequency drive (VFD) with a fast-rise-time insulated gate bipolar transistor (IGBT) to reduce switching losses and

  13. Vehicle Technologies Office: US DRIVE Materials Technical Team Roadmap |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy US DRIVE Materials Technical Team Roadmap Vehicle Technologies Office: US DRIVE Materials Technical Team Roadmap The Materials Technical Team (MTT) of the U.S. DRIVE Partnership focuses primarily on reducing the mass of structural systems such as the body and chassis in light-duty vehicles (including passenger cars and light trucks). Mass reduction also enables improved vehicle efficiency regardless of the vehicle size or propulsion system employed. This roadmap lays out

  14. Deep subsurface drip irrigation using coal-bed sodic water: Part I. Water and solute movement

    SciTech Connect

    Bern, Carleton R.; Breit, George N.; Healy, Richard W.; Zupancic, John W.; Hammack, Richard

    2013-02-01

    Water co-produced with coal-bed methane (CBM) in the semi-arid Powder River Basin of Wyoming and Montana commonly has relatively low salinity and high sodium adsorption ratios that can degrade soil permeability where used for irrigation. Nevertheless, a desire to derive beneficial use from the water and a need to dispose of large volumes of it have motivated the design of a deep subsurface drip irrigation (SDI) system capable of utilizing that water. Drip tubing is buried 92 cm deep and irrigates at a relatively constant rate year-round, while evapotranspiration by the alfalfa and grass crops grown is seasonal. We use field data from two sites and computer simulations of unsaturated flow to understand water and solute movements in the SDI fields. Combined irrigation and precipitation exceed potential evapotranspiration by 300480 mm annually. Initially, excess water contributes to increased storage in the unsaturated zone, and then drainage causes cyclical rises in the water table beneath the fields. Native chloride and nitrate below 200 cm depth are leached by the drainage. Some CBM water moves upward from the drip tubing, drawn by drier conditions above. Chloride from CBM water accumulates there as root uptake removes the water. Year over year accumulations indicated by computer simulations illustrate that infiltration of precipitation water from the surface only partially leaches such accumulations away. Field data show that 7% and 27% of added chloride has accumulated above the drip tubing in an alfalfa and grass field, respectively, following 6 years of irrigation. Maximum chloride concentrations in the alfalfa field are around 45 cm depth but reach the surface in parts of the grass field, illustrating differences driven by crop physiology. Deep SDI offers a means of utilizing marginal quality irrigation waters and managing the accumulation of their associated solutes in the crop rooting zone.

  15. Blood Drive | The Ames Laboratory

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Blood Drive Date: 06082016 - 10:00 Location: 205 TASF Event Type: Laboratory Unite American Red Cross Blood Drive Please sign up in 311 TASF to donate and volunteer Or make an ...

  16. Drive Diagnostic Filter Wheel Control

    Energy Science and Technology Software Center

    2007-07-17

    DrD Filter Wheel Control is National Instrument's Labview software that drives a Drive Diagnostic filter wheel. The software can drive the filter wheel between each end limit, detect the positive and negative limit and each home position and post the stepper motot values to an Excel spreadsheet. The software can also be used to cycle the assembly between the end limits.

  17. Drive alignment pays maintenance dividends

    SciTech Connect

    Fedder, R.

    2008-12-15

    Proper alignment of the motor and gear drive on conveying and processing equipment will result in longer bearing and coupling life, along with lower maintenance costs. Selecting an alignment free drive package instead of a traditional foot mounted drive and motor is a major advancement toward these goals. 4 photos.

  18. Base drive circuit

    DOEpatents

    Lange, Arnold C.

    1995-01-01

    An improved base drive circuit (10) having a level shifter (24) for providing bistable input signals to a pair of non-linear delays (30, 32). The non-linear delays (30, 32) provide gate control to a corresponding pair of field effect transistors (100, 106) through a corresponding pair of buffer components (88, 94). The non-linear delays (30, 32) provide delayed turn-on for each of the field effect transistors (100, 106) while an associated pair of transistors (72, 80) shunt the non-linear delays (30, 32) during turn-off of the associated field effect transistor (100, 106).

  19. Base drive circuit

    DOEpatents

    Lange, A.C.

    1995-04-04

    An improved base drive circuit having a level shifter for providing bistable input signals to a pair of non-linear delays. The non-linear delays provide gate control to a corresponding pair of field effect transistors through a corresponding pair of buffer components. The non-linear delays provide delayed turn-on for each of the field effect transistors while an associated pair of transistors shunt the non-linear delays during turn-off of the associated field effect transistor. 2 figures.

  20. Stop/Start: Driving

    Alternative Fuels and Advanced Vehicles Data Center

    highlighted Braking button subbanner graphic: gray bar PULLING OUT & DRIVING PART 1 The gasoline engine does not run when the vehicle is at rest. When pulling out, the electric starter/generator uses electricity from the battery to instantly start the gasoline engine---the sole source of propulsion for the vehicle. Go to next… stage graphic: vertical blue rule Main stage: See through car with battery, engine, and electric starter/generator visible. The car is stopped at an intersection.

  1. Electrical motor/generator drive apparatus and method

    DOEpatents

    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.

  2. Modesto Irrigation District- New Home Energy Efficiency Rebate Program

    Energy.gov [DOE]

    Modesto Irrigation District's MPower New Home Program provides incentives to builders and homeowners for designing and building energy-efficient homes. Eligible homes must meet the guidelines for...

  3. Modesto Irrigation District- Residential Energy Efficiency Rebate Program

    Energy.gov [DOE]

    Modesto Irrigation District’s Home Rebate Program offers residential customers cash rebates for the purchase and installation of qualifying energy efficient products installed in existing homes....

  4. Modesto Irrigation District- Commercial Energy Efficiency Rebate Program

    Energy.gov [DOE]

    Modesto Irrigation District’s Commercial Power Saver Rebate Program offers incentives to commercial, industrial, and agricultural customers for the purchase and installation of qualifying energy...

  5. SIC ENABLED HIGH-FREQUENCY MEDIUM VOLTAGE DRIVE FOR HIGH-SPEED...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    A medium voltage drive system using SiC semiconductors and a high-speed motor to reduce ... MV high frequency drive, (ii) a high-speed motor, and (iii) advanced insulation systems. ...

  6. Vehicle Technologies Office: 2015 Electric Drive Technologies...

    Office of Environmental Management (EM)

    Electric Drive Technologies Annual R&D Progress Report Vehicle Technologies Office: 2015 Electric Drive Technologies Annual R&D Progress Report The Electric Drive Technologies ...

  7. Replace V-Belts with Notched or Synchronous Belt Drives

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Replace V-Belts with Notched or Synchronous Belt Drives Approximately one-third of the electric motors in the industrial and commercial sectors use belt drives. 1 Belt drives provide fexibility in the positioning of the motor relative to the load. Pulleys (sheaves) of varying diameters allow the speed of the driven equipment to be increased or decreased relative to the motor speed. A properly designed belt power-transmission system offers high effciency and low noise, requires no lubrication,

  8. A Statistical Characterization of School Bus Drive Cycles Collected...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... Timoney, D., "Examination of Low-cost Systems for the Determination of Kinematic ... of Drive Cycles on the Performance of a PEM Fuel Cell System for Automotive Applications," SAE ...

  9. Rotary drive mechanism

    SciTech Connect

    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.

  10. Rotary drive mechanism

    DOEpatents

    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.

  11. Estimates of Savings Achievable from Irrigation Controller

    SciTech Connect

    Williams, Alison; Fuchs, Heidi; Whitehead, Camilla Dunham

    2014-03-28

    This paper performs a literature review and meta-analysis of water savings from several types of advanced irrigation controllers: rain sensors (RS), weather-based irrigation controllers (WBIC), and soil moisture sensors (SMS).The purpose of this work is to derive average water savings per controller type, based to the extent possible on all available data. After a preliminary data scrubbing, we utilized a series of analytical filters to develop our best estimate of average savings. We applied filters to remove data that might bias the sample such as data self-reported by manufacturers, data resulting from studies focusing on high-water users, or data presented in a non-comparable format such as based on total household water use instead of outdoor water use. Because the resulting number of studies was too small to be statistically significant when broken down by controller type, this paper represents a survey and synthesis of available data rather than a definitive statement regarding whether the estimated water savings are representative.

  12. Designing Effective Incentives to Drive Residential Retrofit...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Incentives to Drive Residential Retrofit Program Participation Designing Effective Incentives to Drive Residential Retrofit Program Participation This webinar covered retrofit ...

  13. Stratified random sampling plan for an irrigation customer telephone survey

    SciTech Connect

    Johnston, J.W.; Davis, L.J.

    1986-05-01

    This report describes the procedures used to design and select a sample for a telephone survey of individuals who use electricity in irrigating agricultural cropland in the Pacific Northwest. The survey is intended to gather information on the irrigated agricultural sector that will be useful for conservation assessment, load forecasting, rate design, and other regional power planning activities.

  14. Back to School Drive 2016

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Back to School Drive 2016 Back to School Drive 2016 - now through July 20 Each year, Laboratory employees donate shoes, school supplies and backpacks for Northern New Mexico students as they start the new school year. September 16, 2013 Back pack with school supplies and shoes In 2015, more than 800 elementary and middle-school students received backpacks filled with school supplies. Additionally, $4,000 was given to purchase school supplies from Dollars 4 Schools. Contact Giving Drives Janelle

  15. Sequenced drive for rotary valves

    DOEpatents

    Mittell, Larry C.

    1981-01-01

    A sequenced drive for rotary valves which provides the benefits of applying rotary and linear motions to the movable sealing element of the valve. The sequenced drive provides a close approximation of linear motion while engaging or disengaging the movable element with the seat minimizing wear and damage due to scrubbing action. The rotary motion of the drive swings the movable element out of the flowpath thus eliminating obstruction to flow through the valve.

  16. Distribution Drive | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    navigation, search Name: Distribution Drive Place: Dallas, Texas Zip: 75205 Product: Biodiesel fuel distributor. Coordinates: 32.778155, -96.795404 Show Map Loading map......

  17. Test Drive: Honda FCX Clarity

    Energy.gov [DOE]

    A member of the Energy Empowers team takes the Honda FCX Clarity for a drive outside the U.S. Department of Energy in Washington, D.C.

  18. Solar energy operated irrigation surge valve

    SciTech Connect

    Spain, R. L.

    1985-08-20

    A valve body is provided having axially spaced annular valve seats defining fluid outlets for the body. The body includes an inlet opening into the interior thereof between the seats and a disc valve is supported within the body for axial shifting between the seats. A drive mechanism for the valve disc is drivingly connected thereto and is operative to slowly shift the valve disc from one seat toward engagement with the other seat. The drive mechanism includes a reversible electric motor, a timer, a storage battery and a solar panel for recharging the storage battery. The timer alternately operates the motor in opposite directions whereby the valve disc is shifted back and forth between seated engagement with the axially spaced valve seats.

  19. Darrieus wind-turbine and pump performance for low-lift irrigation pumping. Final report

    SciTech Connect

    Hagen, L.J.; Sharif, M.

    1981-10-01

    In the Great Plains about 15 percent of the irrigation water pumped on farms comes from surface water sources; for the United States as a whole, the figure is about 22 percent. Because of forecast fuel shortages, there is a need to develop alternative energy sources such as wind power for surface water pumping. Specific objectives of this investigation were to: design and assemble a prototype wind-powered pumping system for low-lift (i.e., < 15 m head) irrigation pumping; determine performance of the prototype system; design and test an irrigation system using the wind-powered prototype in a farm application; and determine the size combinations of wind turbines, tailwater pits, and temporary storage reservoirs needed for successful farm application of wind-powered tailwater pumping systems in western Kansas. The power source selected was a two-bladed, 6-m-diameter, 9-m-tall Darrieus vertical-axis wind turbine with 0.10 solidity and 36.1 M/sup 2/ swept area.

  20. The Drive for Energy Diversity and Sustainability: The Impact on

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Transportation Fuels and Propulsion System Portfolios | Department of Energy The Drive for Energy Diversity and Sustainability: The Impact on Transportation Fuels and Propulsion System Portfolios The Drive for Energy Diversity and Sustainability: The Impact on Transportation Fuels and Propulsion System Portfolios Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of

  1. Electric drive mechanism for vehicles

    SciTech Connect

    Bader, C.

    1983-06-21

    An electric drive mechanism is disclosed for vehicles, especially buses with overhead trolley routes, which routes are provided with relatively short interruptions in the overhead trolley. The drive mechanism includes a flywheel two externally excited electric motors which are adapted to be switched over from prime mover operation to generator operation, and which motors are effective as a ward-leonard drive during flywheel operation. The first electric motor is constructed for half of a maximum drive power and the second electric motor is likewise constructed for half or for square root 2/2 times the maximum drive power. Both electric motors are connected electrically in parallel during operation from the main electrical supply. The first and second motors are electrically connected in parallel during operation of the vehicle from the main electrical supply when a change-speed transmission is provided for connecting a drive shaft of one of the motors with driven vehicle wheels. A planetary gear transmission and a further transmission are provided for mechanically connecting the drive shaft of one of the motors with the second motor and with the flywheel.

  2. Magnetic compression laser driving circuit

    DOEpatents

    Ball, Don G.; Birx, Dan; Cook, Edward G.

    1993-01-01

    A magnetic compression laser driving circuit is disclosed. The magnetic compression laser driving circuit compresses voltage pulses in the range of 1.5 microseconds at 20 Kilovolts of amplitude to pulses in the range of 40 nanoseconds and 60 Kilovolts of amplitude. The magnetic compression laser driving circuit includes a multi-stage magnetic switch where the last stage includes a switch having at least two turns which has larger saturated inductance with less core material so that the efficiency of the circuit and hence the laser is increased.

  3. Magnetic compression laser driving circuit

    DOEpatents

    Ball, D.G.; Birx, D.; Cook, E.G.

    1993-01-05

    A magnetic compression laser driving circuit is disclosed. The magnetic compression laser driving circuit compresses voltage pulses in the range of 1.5 microseconds at 20 kilovolts of amplitude to pulses in the range of 40 nanoseconds and 60 kilovolts of amplitude. The magnetic compression laser driving circuit includes a multi-stage magnetic switch where the last stage includes a switch having at least two turns which has larger saturated inductance with less core material so that the efficiency of the circuit and hence the laser is increased.

  4. LNG: new driving force

    SciTech Connect

    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.

  5. Quasi-spherical direct drive fusion.

    SciTech Connect

    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.

  6. Upgrading coal plant damper drives

    SciTech Connect

    Hood, N.R.; Simmons, K.

    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.

  7. ARM - SGP Rural Driving Hazards

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Rural Driving Hazards SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site Summer Training SGP Fact Sheet Images Information for Guest Scientists Contacts SGP Rural Driving Hazards The rural location of the Southern Great Plains (SGP) site facilities requires that visitors travel on

  8. Direct drive field actuator motors

    DOEpatents

    Grahn, Allen R.

    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.

  9. Direct drive field actuator motors

    DOEpatents

    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.

  10. Low backlash direct drive actuator

    DOEpatents

    Kuklo, Thomas C. (Oakland, CA)

    1994-01-01

    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.

  11. Low backlash direct drive actuator

    DOEpatents

    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.

  12. Driving Green com | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Driving Green com Jump to: navigation, search Name: Driving Green.com Place: Melbourne, Florida Zip: 32904 Sector: Vehicles Product: Driving green.com is a website that allows...

  13. April Blood Drive Announcement | Jefferson Lab

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    April Blood Drive Announcement April Blood Drive Announcement The next American Red Cross Blood Drive will take place Tuesday, April 12th from 10 a.m.-4 p.m. in CEBAF Center, Room ...

  14. Potential for Photovoltaic Solar Installation in Non-Irrigated Corners of Center Pivot Irrigation Fields in the State of Colorado

    SciTech Connect

    Roberts, B.

    2011-07-01

    The State of Colorado expressed an interest in assessing the potential for photovoltaic (PV) solar installations on non-irrigated corners of center-pivot irrigation (CPI) fields throughout the state. Using aerial imagery and irrigated land data available from the Colorado Water Conservation Board, an assessment of potentially suitable sites was produced. Productivity estimates were calculated from that assessment. The total area of non-irrigated corners of CPI fields in Colorado was estimated to be 314,674 acres, which could yield 223,418 acres of installed PV panels assuming 71% coverage in triangular plots. The total potential annual electricity production for the state was estimated to be 56,821 gigawatt hours (GWH), with an average of 1.3 GWH per available plot.

  15. 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 ...

  16. Cone Drive Operations Inc | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    enveloping worm gear technology. The company supplies azimuth and elevation drives for solar tracking applications. References: Cone Drive Operations Inc1 This article is a...

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

    Energy Saver

    Marketing & Driving Demand: Social Media Tools & Strategies - January 16, 2011 (Text Version) Marketing & Driving Demand: Social Media Tools & Strategies - January 16, 2011 (Text ...

  18. Driving Accountability for Program Performance Using Measured...

    Energy Saver

    Driving Accountability for Program Performance Using Measured Energy Savings (201) Better Buildings Residential Network Peer Exchange Call Series: Driving Accountability for ...

  19. AmeriFlux US-Ne1 Mead - irrigated continuous maize site

    DOE Data Explorer

    Suyker, Andy [University of Nebraska - Lincoln

    2016-01-01

    This is the AmeriFlux version of the carbon flux data for the site US-Ne1 Mead - irrigated continuous maize site. Site Description - The study site is one of three fields (all located within 1.6 km of each other) at the University of Nebraska Agricultural Research and Development Center near Mead, Nebraska. This site is irrigated with a center pivot system. Prior to the initiation of the study, the irrigated site had a 10-yr history of maize-soybean rotation under no-till. A tillage operation (disking) was done just prior to the 2001 planting to homogenize the top 0.1 m of soil, incorporate P and K fertilizers, as well as previously accumulated surface residues. Since the tillage operation, the site has been under no-till management until the harvest of 2005. Following harvest, a conservation-plow tillage operation was initiated where a small amount of N fertilizer is sprayed on the residue immediately prior to the plow operation. Approximately 1/3 of the crop residue is left on the surface. The post-harvest conservation-plow operation continues as the current practice.

  20. Vehicle Technologies Office Merit Review 2016: Electric Drive Inverter R&D

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    | Department of Energy Electric Drive Inverter R&D Vehicle Technologies Office Merit Review 2016: Electric Drive Inverter R&D Presentation given by Oak Ridge National Laboratory (ORNL) at the 2016 DOE Vehicle Technologies Office and Hydrogen and Fuel Cells Program Annual Merit Review and Peer Evaluation Meeting about Electric Drive Systems edt053_chinthavali_2016_o_web.pdf (1.97 MB) More Documents & Publications Vehicle Technologies Office Merit Review 2015: Electric Drive

  1. Base drive circuit for a four-terminal power Darlington

    DOEpatents

    Lee, Fred C.; Carter, Roy A.

    1983-01-01

    A high power switching circuit which utilizes a four-terminal Darlington transistor block to improve switching speed, particularly in rapid turn-off. Two independent reverse drive currents are utilized during turn off in order to expel the minority carriers of the Darlington pair at their own charge sweep-out rate. The reverse drive current may be provided by a current transformer, the secondary of which is tapped to the base terminal of the power stage of the Darlington block. In one application, the switching circuit is used in each power switching element in a chopper-inverter drive of an electric vehicle propulsion system.

  2. MULTIPLE DIFFERENTIAL ROTARY MECHANICAL DRIVE

    DOEpatents

    Smits, R.G.

    1964-01-28

    This patent relates to a mechanism suitable for such applications as driving two spaced-apart spools which carry a roll film strip under conditions where the film movement must be rapidly started, stopped, and reversed while maintaining a constant tension on the film. The basic drive is provided by a variable speed, reversible rnotor coupled to both spools through a first differential mechanism and driving both spools in the same direction. A second motor, providing a constant torque, is connected to the two spools through a second differential mechanism and is coupled to impart torque to one spool in a first direction anid to the other spool in the reverse direction thus applying a constant tension to the film passing over the two spools irrespective of the speed or direction of rotation thereof. (AEC)

  3. Magnetically Coupled Adjustable Speed Motor Drives | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Magnetically Coupled Adjustable Speed Motor Drives Magnetically Coupled Adjustable Speed Motor Drives Alternating current electric motors rotate at a nearly constant speed that is determined by motor design and line frequency. Energy savings of 50% or more may be available when fixed speed systems are modified to allow the motor speed to match variable load requirements of a centrifugal fan or pump. This tip sheet describes the advantages of magnetically coupled ASDs and provides suggested

  4. Anomalous-viscosity current drive

    DOEpatents

    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.

  5. Hydromechanical transmission with hydrodynamic drive

    DOEpatents

    Orshansky, Jr., deceased, Elias; Weseloh, William E.

    1979-01-01

    This transmission has a first planetary gear assembly having first input means connected to an input shaft, first output means, and first reaction means, and a second planetary gear assembly having second input means connected to the first input means, second output means, and second reaction means connected directly to the first reaction means by a reaction shaft. First clutch means, when engaged, connect the first output means to an output shaft in a high driving range. A hydrodynamic drive is used; for example, a torque converter, which may or may not have a stationary case, has a pump connected to the second output means, a stator grounded by an overrunning clutch to the case, and a turbine connected to an output member, and may be used in a starting phase. Alternatively, a fluid coupling or other type of hydrodynamic drive may be used. Second clutch means, when engaged, for connecting the output member to the output shaft in a low driving range. A variable-displacement hydraulic unit is mechanically connected to the input shaft, and a fixed-displacement hydraulic unit is mechanically connected to the reaction shaft. The hydraulic units are hydraulically connected together so that when one operates as a pump the other acts as a motor, and vice versa. Both clutch means are connected to the output shaft through a forward-reverse shift arrangement. It is possible to lock out the torque converter after the starting phase is over.

  6. Direct Drive Systems DDS | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    high speed, permanent magnet (PM), high-power motors, generators and power electronics. Coordinates: 33.868545, -118.063704 Show Map Loading map......

  7. FY2014 Electric Drive Technologies Annual Progress Report

    SciTech Connect

    2014-12-01

    The Electric Drive Technologies research and development (R&D) subprogram within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies under development. Research is focused on developing power electronics (PE), electric motor, and traction drive system (TDS) technologies that will reduce system cost and improve their efficiency in transforming battery energy to useful work. The R&D is also aimed at better understanding and improving how various components of tomorrow’s automobiles will function as a unified system to improve fuel efficiency.

  8. Climate Mitigation Policy Implications for Global Irrigation Water Demand

    SciTech Connect

    Chaturvedi, Vaibhav; Hejazi, Mohamad I.; Edmonds, James A.; Clarke, Leon E.; Kyle, G. Page; Davies, Evan; Wise, Marshall A.

    2013-08-22

    Energy, water and land are scarce resources, critical to humans. Developments in each affect the availability and cost of the others, and consequently human prosperity. Measures to limit greenhouse gas concentrations will inevitably exact dramatic changes on energy and land systems and in turn alter the character, magnitude and geographic distribution of human claims on water resources. We employ the Global Change Assessment Model (GCAM), an integrated assessment model to explore the interactions of energy, land and water systems in the context of alternative policies to limit climate change to three alternative levels: 2.5 Wm-2 (445 ppm CO2-e), 3.5 Wm-2 (535 ppm CO2-e) and 4.5 Wm-2 (645 ppm CO2-e). We explore the effects of alternative land-use emissions mitigation policy options—one which values terrestrial carbon emissions equally with fossil fuel and industrial emissions, and an alternative which places no penalty on land-use change emissions. We find that increasing populations and economic growth could be anticipated to lead to increased demand for water for agricultural systems (+200%), even in the absence of climate change. In general policies to mitigate climate change will increase agricultural demands for water, regardless of whether or not terrestrial carbon is valued or not. Burgeoning demands for water are driven by the demand for bioenergy in response to emissions mitigation policies. We also find that the policy matters. Increases in the demand for water when terrestrial carbon emissions go un-prices are vastly larger than when terrestrial system carbon emissions are prices at the same rate as fossil fuel and industrial emissions. Our estimates for increased water demands when terrestrial carbon systems go un-priced are larger than earlier studies. We find that the deployment of improved irrigation delivery systems could mitigate some of the increase in water demands, but cannot reverse the increases in water demands when terrestrial carbon

  9. A Segmented Drive Inverter Topology with a Small DC Bus Capacitor |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy A Segmented Drive Inverter Topology with a Small DC Bus Capacitor A Segmented Drive Inverter Topology with a Small DC Bus Capacitor 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting ape004_su_2012_o.pdf (1.76 MB) More Documents & Publications A Segmented Drive Inverter Topology with a Small DC Bus Capacitor A Segmented Drive Inverter Topology with a Small DC Bus Capacitor A Segmented Drive System

  10. Wind energy for irrigation: wind-assisted pumping from wells. Final report

    SciTech Connect

    Clark, R.N.; Schneider, A.D.; Nelson, V.; Gilmore, E.; Barieau, R.E.

    1981-01-01

    Work is reported on a project whose objectives were: to assemble a complete wind-powered pumping system for irrigation wells in the Southern Great Plains; to adapt or modify existing pumping equipment so that it could effectively be powered by a vertical-axis wind turbine; to develop a data collection system for collecting, recording and processing on-site wind data and mechanical, electrical and hydraulic systems data; to combine data from all systems in an overall analysis that will permit an engineering evaluation of the complete system; to develop a dynamic mathematical model of the pumping system which includes the most appropriate model of the vertical-axis wind turbine; and to make an economic analysis of the wind-powered pumping system and construct a model for predicting the economics of such systems in general. The pumping system uses both a vertical-axis, or Darrieus, wind turbine designed to produce 40 kW in a 15 m/s wind and an electric motor to power a conventional vertical-turbine irrigation pump. The wind turbine furnishes power to the pump only when the windspeed exceeds 6 m/s and is used to reduce the load on the electric motor rather than to replace the motor. The wind-assisted pumping system and its operation are described, as is the data collection system, and the results of the performance data analysis for the wind turbine and the pumping system are discussed. The system's annual energy output is predicted, and the economics are analyzed. (LEW)

  11. Minimize Adverse Motor and Adjustable Speed Drive Interactions

    Energy.gov [DOE]

    Electronic adjustable speed drives (ASDs) are extremely efficient and valuable assets to motor systems. They allow precise process control and provide energy savings within systems that do not need to operate continuously at full output. This tip sheet discusses design considerations to take into account when considering ASDs and offers suggested actions.

  12. Evaluation of irrigation management procedures for geothermal effluent

    SciTech Connect

    Brockway, C.E.; Robbins, C.W.; Robison, C.W.; Johnson, G.S.

    1984-06-01

    An investigation was conducted to determine the feasibility of geothermal power plant effluent disposal by surface irrigation and the resulting impact on the shallow aquifer. The study was conducted at the Raft River Experimental Geothermal Power Plant site near Malta, Idaho and at the Snake River Conservation Research Center with soils and effluent obtained from the geothermal power plant site.

  13. NexxtDrive | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    NexxtDrive Jump to: navigation, search Name: NexxtDrive Place: London, England, United Kingdom Zip: WC2N 5HR Product: London-based firm developing electro-mechanical technologies...

  14. SE Drive Technik | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Drive Technik Jump to: navigation, search Name: SE Drive Technik Place: Bochum, Germany Zip: 44791 Product: Germany-based R&D subsidiary of Indian turbine maker Suzlon. References:...

  15. Eco Drive Capital Partners | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Capital Partners Jump to: navigation, search Name: Eco-Drive Capital Partners Place: New York Product: New York-based Eco-Drive is a European-American investment consortium,...

  16. GenDrive Limited | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    GenDrive Limited Jump to: navigation, search Name: GenDrive Limited Place: Cambridge, United Kingdom Zip: CB23 3GY Sector: Renewable Energy, Solar, Wind energy Product: Developing...

  17. National Drive Electric Week | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    National Drive Electric Week National Drive Electric Week September 16, 2014 - 4:00pm Addthis Celebrate National Drive Electric Week with ways to make your all-electric or plug-in hybrid cars even greener! | Photo courtesy of Dennis Schroeder, National Renewable Energy Laboratory Celebrate National Drive Electric Week with ways to make your all-electric or plug-in hybrid cars even greener! | Photo courtesy of Dennis Schroeder, National Renewable Energy Laboratory Paige Terlip Paige Terlip Former

  18. Crops reap benefits of Pantex irrigation system | National Nuclear...

    National Nuclear Security Administration (NNSA)

    fields of wheat and lush tracts of corn stretch across Pantex land soaking up the Texas sun. Invisible to the eye is what else they're soaking up - an estimated 900,000 gallons a...

  19. Indianapolis Offers a Lesson on Driving Demand

    Energy.gov [DOE]

    Successful program managers know that understanding the factors that drive homeowners to make upgrades is critical to the widespread adoption of energy efficiency. What better place to learn about driving demand for upgrades than in Indianapolis, America's most famous driving city?

  20. Fluid cooled vehicle drive module

    DOEpatents

    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.

  1. Vehicle Technologies Office: U.S. DRIVE 2015 Technical Accomplishments...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    U.S. DRIVE 2015 Technical Accomplishments Report Vehicle Technologies Office: U.S. DRIVE 2015 Technical Accomplishments Report The U.S. DRIVE 2015 Highlights of Technical ...

  2. DOE Tour of Zero Floorplans: Hickory Drive by Glastonbury Housesmith...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Hickory Drive by Glastonbury Housesmith DOE Tour of Zero Floorplans: Hickory Drive by Glastonbury Housesmith DOE Tour of Zero Floorplans: Hickory Drive by Glastonbury Housesmith...

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    US DRIVE Materials Technical Team Roadmap Vehicle Technologies Office: US DRIVE Materials Technical Team Roadmap The Materials Technical Team (MTT) of the U.S. DRIVE Partnership ...

  4. US DRIVE Driving Research and Innovation for Vehicle Efficiency and Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Sustainability Partnership Plan | Department of Energy Driving Research and Innovation for Vehicle Efficiency and Energy Sustainability Partnership Plan US DRIVE Driving Research and Innovation for Vehicle Efficiency and Energy Sustainability Partnership Plan This document describes the vision, mission, scope, and governing policies of the U.S. DRIVE Partnership ("Partnership"). Dated November 2016. US DRIVE Partnership Plan with ADDENDUM_NOV 2016.pdf (787.81 KB) More Documents

  5. US DRIVE Hydrogen Storage Technical Team Roadmap | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Storage Technical Team Roadmap US DRIVE Hydrogen Storage Technical Team Roadmap The scope of the Hydrogen Storage Tech Team is to review and evaluate the potential, and limitations, of novel approaches, materials, and systems for hydrogen storage onboard light-duty fuel cell vehicles and provide feedback to the U.S. Department of Energy (DOE) and Partnership stakeholders. Generate system goals and performance targets, and establish test methods for hydrogen storage systems onboard vehicles.

  6. Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Biofuels: Long-Term Energy Benefits Drive U.S. Research Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research algal_biofuels_factsheet.pdf (96.06 KB) More Documents & Publications Advanced Algal Systems Fact Sheet 2016 National Algal Biofuels Technology Review 2015 Peer Review Presentations-Algal Feedstocks

  7. U.S. DRIVE Partnership Releases Accomplishments Report

    Energy.gov [DOE]

    The U.S. DRIVE Partnership has released its 2014 Accomplishments Report, which includes significant technical accomplishments in advanced combustion and emission control, electrical and electronics, electrochemical energy storage, fuel cells, materials, vehicle systems analysis, codes and standards, hydrogen storage, grid interaction, fuel pathway integration, hydrogen delivery, and hydrogen production.

  8. Opportunities for Automated Demand Response in California Agricultural Irrigation

    SciTech Connect

    Olsen, Daniel; Aghajanzadeh, Arian; McKane, Aimee

    2015-08-01

    Pumping water for agricultural irrigation represents a significant share of California’s annual electricity use and peak demand. It also represents a large source of potential flexibility, as farms possess a form of storage in their wetted soil. By carefully modifying their irrigation schedules, growers can participate in demand response without adverse effects on their crops. This report describes the potential for participation in demand response and automated demand response by agricultural irrigators in California, as well as barriers to widespread participation. The report first describes the magnitude, timing, location, purpose, and manner of energy use in California. Typical on-­farm controls are discussed, as well as common impediments to participation in demand response and automated demand response programs. Case studies of demand response programs in California and across the country are reviewed, and their results along with overall California demand estimates are used to estimate statewide demand response potential. Finally, recommendations are made for future research that can enhance the understanding of demand response potential in this industry.

  9. Minimize Adverse Motor and Adjustable Speed Drive Interactions - Motor Tip Sheet #15

    SciTech Connect

    2008-07-01

    Electronic adjustable speed drives (ASDs) are an extremely efficient and valuable asset to motor systems. They allow precise process control and provide energy savings within systems that do not need to continuously operate at full output.

  10. Engine with speed responsive multi-ratio turbocharger drive

    SciTech Connect

    McCreary, Ch.H.

    1984-05-01

    An internal combustion engine, especially of the two stroke cycle diesel type, has a turbocharger with a supplemental mechanical drive for maintaining a minimum speed ratio relative to engine speed, when exhaust energy is insufficient to provide a higher speed, so as to maintain adequate charging air for engine operation throughout the engine speed range. In order to provide more efficient operation during engine operation at idle and in a lower portion of the operating range where a reduced amount of charging air is adequate, a secondary lower speed ratio is provided by the mechanical drive system. A speed responsive clutch is included to disconnect the higher speed primary drive during engine operation in the lower speed range and permit operation at the more efficient secondary speed ratio.

  11. Advanced Electric Drive Vehicles … A Comprehensive Education...

    Energy.gov [DOE] (indexed site)

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

  12. Electric vehicle drive train with contactor protection

    DOEpatents

    Konrad, Charles E.; Benson, Ralph A.

    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.

  13. Electric vehicle drive train with contactor protection

    DOEpatents

    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.

  14. 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...

  15. Driving Innovation, Speeding Adoption, Scaling Savings

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Driving Innovation, Speeding Adoption, Scaling Savings An Overview of the Building Technologies Office Roland Risser 2016 Building Technologies Office Peer Review April 4, 2016 2 ...

  16. Driving the Future | Argonne National Laboratory

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Driving the Future At Argonne National Laboratory's Center for Transportation Research, our goal is to accelerate the development and deployment of vehicle technologies that help...

  17. DistributionDrive | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    search Name: DistributionDrive Place: Addison, Texas Zip: 75001 Product: Supplier of Biodiesel, Straight Vegetable Oil (SVO), Recycled Vegetable Oil (WVO) and Engine Conversion...

  18. Electric Drive Component Manufacturing Facilities | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Component Manufacturing Facilities Electric Drive Component Manufacturing Facilities 2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review ...

  19. Electric Drive Component Manufacturing Facilities | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Component Manufacturing Facilities Electric Drive Component Manufacturing Facilities 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review ...

  20. 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 PDF icon grandchallengesportfoliopg9.pdf More Documents & Publications ...

  1. 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 PDF icon grandchallengesportfoliopg8.pdf More Documents & Publications ...

  2. 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 PDF icon grandchallengesportfoliopg6.pdf More Documents & Publications ...

  3. Electric Drive Transportation Association EDTA | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Transportation Association EDTA Jump to: navigation, search Name: Electric Drive Transportation Association (EDTA) Product: EDTA is the preeminent U.S. industry association...

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

    Energy.gov [DOE] (indexed site)

    More Documents & Publications Using Social Media for Long-Term Branding Marketing & Driving Demand: Social Media Tools & Strategies - January 16, 2011 (Text Version) Generating ...

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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

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

    Energy.gov [DOE] (indexed site)

    Electric Drive Technologies research and development (R&D) subprogram within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge ...

  7. Electric-Drive Vehicle Basics (Brochure)

    SciTech Connect

    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.

  8. Electric Drive Semiconductor Manufacturing (EDSM) Center | Department...

    Energy.gov [DOE] (indexed site)

    and Vehicle Technologies Program Annual Merit Review and Peer Evaluation arravt030apesmith2011p.pdf (331.83 KB) More Documents & Publications Electric Drive Semiconductor ...

  9. Vehicle Technologies Office Merit Review 2016: Development of Radically Enhanced alnico Magnets (DREaM) for Traction Drive Motors

    Office of Energy Efficiency and Renewable Energy (EERE)

    Presentation given by Ames at the 2016 DOE Vehicle Technologies Office and Hydrogen and Fuel Cells Program Annual Merit Review and Peer Evaluation Meeting about Electric Drive Systems

  10. SIC ENABLED HIGH-FREQUENCY MEDIUM VOLTAGE DRIVE FOR HIGH-SPEED MOTORS

    Energy.gov [DOE]

    General Electric Company – Niskayuna, NY A medium voltage drive system using SiC semiconductors and a high-speed motor to reduce the system footprint and improve power density and efficiency will be developed and demonstrated. To achieve these targets, the program will focus on three technology areas: (i) SiC-based MV high frequency drive, (ii) a high-speed motor, and (iii) advanced insulation systems. Fact sheet coming soon.

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

    SciTech Connect

    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.

  12. 1980 annual report of the Coolidge Solar Irrigation Project

    SciTech Connect

    Torkelson, L.; Larson, D. L.

    1981-02-01

    The Coolidge Solar Irrigation Facility at Coolidge, Arizona, consists of a 2136.8-m/sup 2/ (23,000-ft/sup 2/) line-focus parabolic trough collector subsystem, a 113.55-m/sup 3/ (30,000-gallon) thermal storage subsystem, and a 150-kW/sub e/ (142.2-Btu/s) organic Rankine cycle power generation unit. The performance of the facility and its operational and maintenance requirements are reported. The period from the the facility's initial operation in October 1979 to 31 August 1980 is covered.

  13. Transfer system

    DOEpatents

    Kurosawa, Kanji; Koga, Bunichiro; Ito, Hideki; Kiriyama, Shigeru; Higuchi, Shizuo

    2003-05-20

    A transport system includes a traveling rail (1) which constitutes a transport route and a transport body (3) which is capable of traveling on the traveling rail in the longitudinal direction of the traveling rail. Flexible drive tubes (5) are arranged on the traveling rail in the longitudinal direction of the traveling rail. The transport body includes a traveling wheel (4) which is capable of rolling on the traveling rail and drive wheels (2) which are capable of rolling on the drive tubes upon receiving the rotational drive power generated by pressure of a pressure medium supplied to the drive tubes while depressing the drive tubes. The traveling rail includes a plurality of transport sections and the transport body is capable of receiving a rotational drive force from the drive tubes at every transport sections. If necessary, a transport route changeover switch which changes over the transport route can be provided between the transport sections.

  14. Conceptual Design - Polar Drive Ignition Campaign

    SciTech Connect

    Hansen, R

    2012-04-05

    The Laboratory for Laser Energetics (LLE) at the University of Rochester is proposing a collaborative effort with Lawrence Livermore National Laboratory (LLNL), Los Alamos National Laboratories (LANL), the Naval Research Laboratory (NRL), and General Atomics (GA) with the goal of developing a cryogenic polar drive (PD) ignition platform on the National Ignition Facility (NIF). The scope of this proposed project requires close discourse among theorists, experimentalists, and laser and system engineers. This document describes how this proposed project can be broken into a series of parallel independent activities that, if implemented, could deliver this goal in the 2017 timeframe. This Conceptual Design document is arranged into two sections: mission need and design requirements. Design requirements are divided into four subsystems: (1) A point design that details the necessary target specifications and laser pulse requirements; (2) The beam smoothing subsystem that describes the MultiFM 1D smoothing by spectral dispersion (SSD); (3) New optical elements that include continuous phase plates (CPP's) and distributed polarization rotators (DPR's); and (4) The cryogenic target handling and insertion subsystem, which includes the design, fabrication, testing, and deployment of a dedicated PD ignition target insertion cryostat (PD-ITIC). This document includes appendices covering: the primary criteria and functional requirements, the system design requirements, the work breakdown structure, the target point design, the experimental implementation plan, the theoretical unknowns and technical implementation risks, the estimated cost and schedule, the development plan for the DPR's, the development plan for MultiFM 1D SSD, and a list of acronym definitions. While work on the facility modifications required for PD ignition has been in progress for some time, some of the technical details required to define the specific modifications for a Conceptual Design Review (CDR) remain

  15. A modeling study of irrigation effects on global surface water and groundwater resources under a changing climate

    SciTech Connect

    Leng, Guoyong; Huang, Maoyi; Tang, Qiuhong; Leung, Lai-Yung R.

    2015-08-25

    Abstract In this study, the effects of irrigation on global surface water (SW) and groundwater (GW) resources are investigated by performing simulations using Community Land Model 4.0 (CLM4) at 0.5-degree resolution driven by downscaled/bias-corrected historical simulations and future projections from five General Circulation Models (GCMs) for 1950-2099. For each climate scenario, three sets of numerical experiments were configured: (1) a control experiment (CTRL) in which all crops are assumed to be rainfed; (2) an irrigation experiment (IRRIG) in which the irrigation module using only SW for irrigation is activated; and (3) a groundwater pumping experiment (PUMP) in which a groundwater pumping scheme coupled with the irrigation module is activated for conjunctive use of SW and GW for irrigation. The parameters associated with irrigation and groundwater pumping are calibrated based on a global inventory of census-based SW and GW use compiled by the Food and Agricultural Organization (FAO). Our results suggest that irrigation could lead to two major opposing effects: SW depletion/GW accumulation in regions with irrigation primarily fed by SW, and SW accumulation/GW depletion in regions with irrigation fed primarily by GW. Furthermore, irrigation depending primarily on SW tends to have larger impacts on low-flow than high-flow conditions, suggesting the potential to increase vulnerability to drought. By the end of the 21st century (2070-2099), climate change significantly increases (relative to 1971-2000) irrigation water demand across the world. Combined with the increased temporal-spatial variability of water supply, this may lead to severe issues of local water scarcity for irrigation. Regionally, irrigation has the potential to aggravate/alleviate climate-induced changes of SW/GW although such effects are negligible when averaged globally. Our results emphasize the importance of accounting for irrigation effects and irrigation sources in regional climate change

  16. A modeling study of irrigation effects on global surface water and groundwater resources under a changing climate

    DOE PAGES [OSTI]

    Leng, Guoyong; Huang, Maoyi; Tang, Qiuhong; Leung, Lai-Yung R.

    2015-08-25

    In this paper, the effects of irrigation on global surface water (SW) and groundwater (GW) resources are investigated by performing simulations using Community Land Model 4.0 (CLM4) at 0.5-degree resolution driven by downscaled/bias-corrected historical simulations and future projections from five General Circulation Models (GCMs) for 1950-2099. For each climate scenario, three sets of numerical experiments were configured: (1) a control experiment (CTRL) in which all crops are assumed to be rainfed; (2) an irrigation experiment (IRRIG) in which the irrigation module using only SW for irrigation is activated; and (3) a groundwater pumping experiment (PUMP) in which a groundwater pumpingmore » scheme coupled with the irrigation module is activated for conjunctive use of SW and GW for irrigation. The parameters associated with irrigation and groundwater pumping are calibrated based on a global inventory of census-based SW and GW use compiled by the Food and Agricultural Organization (FAO). Our results suggest that irrigation could lead to two major opposing effects: SW depletion/GW accumulation in regions with irrigation primarily fed by SW, and SW accumulation/GW depletion in regions with irrigation fed primarily by GW. Furthermore, irrigation depending primarily on SW tends to have larger impacts on low-flow than high-flow conditions, suggesting the potential to increase vulnerability to drought. By the end of the 21st century (2070-2099), climate change significantly increases (relative to 1971-2000) irrigation water demand across the world. Combined with the increased temporal-spatial variability of water supply, this may lead to severe issues of local water scarcity for irrigation. Regionally, irrigation has the potential to aggravate/alleviate climate-induced changes of SW/GW although such effects are negligible when averaged globally. Our results emphasize the importance of accounting for irrigation effects and irrigation sources in regional climate change

  17. A modeling study of irrigation effects on global surface water and groundwater resources under a changing climate

    SciTech Connect

    Leng, Guoyong; Huang, Maoyi; Tang, Qiuhong; Leung, Lai-Yung R.

    2015-08-25

    In this paper, the effects of irrigation on global surface water (SW) and groundwater (GW) resources are investigated by performing simulations using Community Land Model 4.0 (CLM4) at 0.5-degree resolution driven by downscaled/bias-corrected historical simulations and future projections from five General Circulation Models (GCMs) for 1950-2099. For each climate scenario, three sets of numerical experiments were configured: (1) a control experiment (CTRL) in which all crops are assumed to be rainfed; (2) an irrigation experiment (IRRIG) in which the irrigation module using only SW for irrigation is activated; and (3) a groundwater pumping experiment (PUMP) in which a groundwater pumping scheme coupled with the irrigation module is activated for conjunctive use of SW and GW for irrigation. The parameters associated with irrigation and groundwater pumping are calibrated based on a global inventory of census-based SW and GW use compiled by the Food and Agricultural Organization (FAO). Our results suggest that irrigation could lead to two major opposing effects: SW depletion/GW accumulation in regions with irrigation primarily fed by SW, and SW accumulation/GW depletion in regions with irrigation fed primarily by GW. Furthermore, irrigation depending primarily on SW tends to have larger impacts on low-flow than high-flow conditions, suggesting the potential to increase vulnerability to drought. By the end of the 21st century (2070-2099), climate change significantly increases (relative to 1971-2000) irrigation water demand across the world. Combined with the increased temporal-spatial variability of water supply, this may lead to severe issues of local water scarcity for irrigation. Regionally, irrigation has the potential to aggravate/alleviate climate-induced changes of SW/GW although such effects are negligible when averaged globally. Our results emphasize the importance of accounting for irrigation effects and irrigation sources in regional climate change impact

  18. Radio Frequency Current Drive Considerations for Small Aspect Ratio Tori

    SciTech Connect

    Carter, M.D.

    1998-01-01

    Noninductive current drive is required during plasma initiation and for current sustainment in the National Spherical Torus Experiment (NSTX). In this paper, the physics of high harmonic fast waves (HHFW) and the design of an antenna system for NSTX are considered using numerical models. For high current discharges in NSTX, the static magnetic field component in the poloidal direction varies widely during the discharge and can become comparable to the toroidal component in NSTX. Therefore, they calculate the plasma loading for a broad range of antenna and plasma geometries in a three-dimensional model, so that the results can be used to influence the antenna design. Two-dimensional calculations of the wave propagation and absorption in the core plasma indicate that the theoretical current drive efficiency for HHFW can be high, and a general survey of parameters gives a good target for the antenna design. The current drive efficiency calculation is sensitive to the equilibrium model because finite beta effects can substantially alter the calculation of the trapped particle fraction. Traditional methods of toroidally phasing an antenna array as well as poloidal phasing are studied to optimize the current drive efficiency for a range of equilibria. Non-zero poloidal model excitation is also found to affect the antenna performance and flexibility. Performance expectations for a preliminary antenna design are given.

  19. Radio frequency current drive considerations for small aspect ratio tori

    SciTech Connect

    Carter, M.D.; Jaeger, E.F.; Strickler, D.J.; Ryan, P.M.; Swain, D.W.; Batchelor, D.B.

    1998-07-01

    Noninductive current drive is required during plasma initiation and for current sustainment in the National Spherical Torus Experiment (NSTX). In this paper, the physics of high harmonic fast waves (HHFW) and the design of an antenna system for NSTX are considered using numerical models. For high current discharges in NSTX, the static magnetic field component in the poloidal direction varies widely during the discharge and can become comparable to the toroidal component in NSTX. Therefore, they calculate the plasma loading for a broad range of antenna and plasma geometries in a three-dimensional model, so that the results can be used to influence the antenna design. Two-dimensional calculations of the wave propagation and absorption in the core plasma indicate that the theoretical current drive efficiency for HHFW can be high, and a general survey of parameters gives a good target for the antenna design. The current drive efficiency calculation is sensitive to the equilibrium model because finite beta effects can substantially alter the calculation of the trapped particle fraction. Traditional methods of toroidally phasing an antenna array as well as poloidal phasing are studied to optimize the current drive efficiency for a range of equilibria. Non-zero poloidal mode excitation is also found to affect the antenna performance and flexibility. Performance expectations for a preliminary antenna design are given.

  20. A high-fidelity harmonic drive model.

    SciTech Connect

    Preissner, C.; Royston, T. J.; Shu, D.

    2012-01-01

    In this paper, a new model of the harmonic drive transmission is presented. The purpose of this work is to better understand the transmission hysteresis behavior while constructing a new type of comprehensive harmonic drive model. The four dominant aspects of harmonic drive behavior - nonlinear viscous friction, nonlinear stiffness, hysteresis, and kinematic error - are all included in the model. The harmonic drive is taken to be a black box, and a dynamometer is used to observe the input/output relations of the transmission. This phenomenological approach does not require any specific knowledge of the internal kinematics. In a novel application, the Maxwell resistive-capacitor hysteresis model is applied to the harmonic drive. In this model, sets of linear stiffness elements in series with Coulomb friction elements are arranged in parallel to capture the hysteresis behavior of the transmission. The causal hysteresis model is combined with nonlinear viscous friction and spectral kinematic error models to accurately represent the harmonic drive behavior. Empirical measurements are presented to quantify all four aspects of the transmission behavior. These measurements motivate the formulation of the complete model. Simulation results are then compared to additional measurements of the harmonic drive performance.

  1. Chapter 18: Variable Frequency Drive Evaluation Protocol

    SciTech Connect

    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.

  2. Consider Steam Turbine Drives for Rotating Equipment - Steam Tip Sheet #21

    SciTech Connect

    2012-01-01

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

  3. Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research...

    Energy.gov [DOE] (indexed site)

    Algal Biofuels: Long-Term Energy Benefits Drive U.S. Research algalbiofuelsfactsheet.pdf (96.06 KB) More Documents & Publications Advanced Algal Systems Fact Sheet 2016 National ...

  4. Direct Fusion Drive for a Human Mars Orbital Mission

    SciTech Connect

    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.

  5. Partnerships Drive New Transportation Solutions - News Feature | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Partnerships Drive New Transportation Solutions October 23, 2014 Photo of two men standing in front of a large solar panel and an electric vehicle. Transportation and Hydrogen Systems Center Director Chris Gearhart, right, and Vehicle Technologies Laboratory Program Manager John Farrell joined NREL in 2013 after three collective decades in the automotive and fuels industries. These industries turn to NREL for support in addressing many of their energy efficiency challenges. Photo by Dennis

  6. US DRIVE Fuel Cell Technical Team Roadmap | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Fuel Cell Technical Team Roadmap US DRIVE Fuel Cell Technical Team Roadmap The Fuel Cell Technical Team (FCTT) conducts the following activities: (1) Reviews and evaluates materials and systems research regarding fuel cells for light-duty vehicles and provides feedback to the U.S. Department of Energy (DOE) and Partnership stakeholders, (2) Generates goals and performance targets for fuel cells for automotive applications, (3) Collaborates with other technical teams and assists the Partnership

  7. A Drive Laser for Multi-Bunch Photoinjector Operation

    SciTech Connect

    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.

  8. Semiclassical instability of dynamical warp drives

    SciTech Connect

    Finazzi, Stefano; Liberati, Stefano; Barcelo, Carlos

    2009-06-15

    Warp drives are very interesting configurations in general relativity: At least theoretically, they provide a way to travel at superluminal speeds, albeit at the cost of requiring exotic matter to exist as solutions of Einstein's equations. However, even if one succeeded in providing the necessary exotic matter to build them, it would still be necessary to check whether they would survive to the switching on of quantum effects. Semiclassical corrections to warp-drive geometries have been analyzed only for eternal warp-drive bubbles traveling at fixed superluminal speeds. Here, we investigate the more realistic case in which a superluminal warp drive is created out of an initially flat spacetime. First of all we analyze the causal structure of eternal and dynamical warp-drive spacetimes. Then we pass to the analysis of the renormalized stress-energy tensor (RSET) of a quantum field in these geometries. While the behavior of the RSET in these geometries has close similarities to that in the geometries associated with gravitational collapse, it shows dramatic differences too. On one side, an observer located at the center of a superluminal warp-drive bubble would generically experience a thermal flux of Hawking particles. On the other side, such Hawking flux will be generically extremely high if the exotic matter supporting the warp drive has its origin in a quantum field satisfying some form of quantum inequalities. Most of all, we find that the RSET will exponentially grow in time close to, and on, the front wall of the superluminal bubble. Consequently, one is led to conclude that the warp-drive geometries are unstable against semiclassical backreaction.

  9. Direct-drive field actuator motors

    DOEpatents

    Grahn, Allen R.

    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.

  10. Direct-drive field actuator motors

    DOEpatents

    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.

  11. Adjustable Speed Drive Part-Load Efficiency

    Energy.gov [DOE]

    An adjustable speed drive (ASD) is a device that controls the rotational speed of motor-driven equipment. Variable frequency drives (VFDs), the most common type of ASDs, efficiently meet varying process requirements by adjusting the frequency and voltage of the power supplied to an AC motor to enable it to operate over a wide speed range. External sensors monitor flow, liquid levels, or pressure and then transmit a signal to a controller that adjusts the frequency and speed to match process requirements.

  12. Lab school supply drive starts July 15

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Lab school supply drive starts July 15 Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:November 2, 2016 all issues All Issues » submit Lab school supply drive starts July 15 Anyone can donate supplies through the Lab's Community Programs Office July 1, 2013 Del Norte Credit Union's Baxter Bear takes a moment to pose with some of the backpacks filled with school supplies that will help students start their school year off right Del

  13. Direct Drive Wave Energy Buoy

    SciTech Connect

    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.

  14. Charging Up with the Electric Drive Transportation Association | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Charging Up with the Electric Drive Transportation Association Charging Up with the Electric Drive Transportation Association May 20, 2014 - 4:51pm Addthis Test Drive 1 of 5 Test Drive Deputy Assistant Secretary for Transportation Reuben Sarkar drives a Chevrolet Spark EV during the Electric Drive Transportation Association conference in Indianapolis, Indiana on May 20, 2014. The conference brings together industry leaders who are advancing electric vehicle technologies and

  15. Vehicle Technologies Office: U.S. DRIVE | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Vehicle Technologies Office: U.S. DRIVE Vehicle Technologies Office: U.S. DRIVE Logo for U.S. DRIVE - Driving Research and Innovation for Vehicle efficiency and Energy sustainability. U.S. DRIVE stands for Driving Research and Innovation for Vehicle efficiency and Energy sustainability. It is a non-binding and voluntary government-industry partnership focused on advanced automotive and related energy infrastructure technology research and development (R&D). Specifically, the Partnership is a

  16. Vehicle Technologies Office: U.S. DRIVE 2013 Technical Accomplishments...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    3 Technical Accomplishments Report Vehicle Technologies Office: U.S. DRIVE 2013 Technical Accomplishments Report The U.S. DRIVE 2013 Highlights of Technical Accomplishments Report ...

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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

  18. Airlines & Aviation Alternative Fuels: Our Drive to Be Early...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    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. Alternative Fuels Data Center: Phoenix Utility Fleet Drives Smarter...

    Alternative Fuels and Advanced Vehicles Data Center

    Phoenix Utility Fleet Drives Smarter with Biodiesel to someone by E-mail Share Alternative Fuels Data Center: Phoenix Utility Fleet Drives Smarter with Biodiesel on Facebook Tweet ...

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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

  1. The drive toward hydrogen vehicles just got shorter

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    The drive toward hydrogen vehicles just got shorter The drive toward hydrogen vehicles just got shorter Researchers have revealed a new single-stage method for recharging the ...

  2. EERE National Lab Impact Summit: Driving American Energy Innovation...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EERE National Lab Impact Summit: Driving American Energy Innovation and Competitiveness EERE National Lab Impact Summit: Driving American Energy Innovation and Competitiveness ...

  3. Light-Duty Reactivity Controlled Compression Ignition Drive Cycle...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Ignition Drive Cycle Fuel Economy and Emissions Estimates Light-Duty Reactivity Controlled Compression Ignition Drive Cycle Fuel Economy and Emissions Estimates Vehicle ...

  4. Performance and mix measurements of indirect drive Cu doped Be...

    Office of Scientific and Technical Information (OSTI)

    Performance and mix measurements of indirect drive Cu doped Be implosions Citation Details In-Document Search Title: Performance and mix measurements of indirect drive Cu doped Be ...

  5. MHK Technologies/Anaconda bulge tube drives turbine | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Anaconda bulge tube drives turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Anaconda bulge tube drives turbine.jpg Technology Profile...

  6. Energy Department Driving Clean Energy Development and Sustainable...

    Energy Saver

    Driving Clean Energy Development and Sustainable Solutions in 16 States Energy Department Driving Clean Energy Development and Sustainable Solutions in 16 States August 22, 2016 - ...

  7. Electric Drive and Advanced Battery and Components Testbed (EDAB...

    Energy.gov [DOE] (indexed site)

    More Documents & Publications Electric Drive and Advanced Battery and Components Testbed (EDAB) Electric Drive and Advanced Battery and Components Testbed (EDAB) Vehicle ...

  8. Vehicle Technologies Office Merit Review 2014: Electric Drive...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Electric Drive and Advanced Battery and Components Testbed (EDAB) Vehicle Technologies Office Merit Review 2014: Electric Drive and Advanced Battery and Components Testbed (EDAB) ...

  9. Electric Drive and Advanced Battery and Components Testbed (EDAB...

    Energy.gov [DOE] (indexed site)

    More Documents & Publications Electric Drive and Advanced Battery and Components Testbed (EDAB) Vehicle Technologies Office Merit Review 2014: Electric Drive and Advanced Battery ...

  10. Center for Electric Drive Transportation at the University of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Electric Drive Transportation at the University of Michigan - Dearborn Center for Electric Drive Transportation at the University of Michigan - Dearborn 2012 DOE Hydrogen and Fuel ...

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

    Office of Environmental Management (EM)

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

  12. Using Partnerships to Drive Demand and Provide Services in Communities...

    Energy Saver

    Partnerships to Drive Demand and Provide Services in Communities Using Partnerships to Drive Demand and Provide Services in Communities Better Buildings Neighborhood Program ...

  13. Driving Change in Residential Energy Efficiency: Electric Vehicles...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Driving Change in Residential Energy Efficiency: Electric Vehicles Advanced Programs (301) Driving Change in Residential Energy Efficiency: Electric Vehicles Advanced Programs ...

  14. US DRIVE Fuel Pathway Integration Technical Team Roadmap | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Fuel Pathway Integration Technical Team Roadmap US DRIVE Fuel Pathway Integration Technical Team Roadmap The Fuel Pathway Integration Technical Team (FPITT) supports the U.S. DRIVE ...

  15. EV Everywhere Electric Drive Workshop: Preliminary Target-Setting...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EV Everywhere Electric Drive Workshop: Preliminary Target-Setting Framework Presentation given at the EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric ...

  16. EV Everywhere EV Everywhere Grand Challenge - Electric Drive...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop Agenda EV Everywhere EV Everywhere Grand Challenge - Electric Drive (Power ...

  17. Electric Drive Status and Challenges | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Electric Drive Status and Challenges Presentation given at the EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, 2012 ...

  18. EV Everywhere Grand Challenge - Electric Drive (Power Electronics...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    - Electric Drive (Power Electronics and Electric Machines) Workshop EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop List of ...

  19. Direct Drive Wave Energy Buoy

    SciTech Connect

    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.

  20. Alliant Energy Interstate Power and Light - Farm Equipment Energy...

    Energy.gov [DOE] (indexed site)

    Pumps: 5cow Motors: 30HP Variable Frequency Drives: 30HP Lighting: 3 - 20fixture Ventilation Systems: 10 Livestock Waterers: 40unit Low Pressure Irrigation Systems:...

  1. Solutia: Utilizing Sub-Metering to Drive Energy Project Approvals Through

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Data | Department of Energy Utilizing Sub-Metering to Drive Energy Project Approvals Through Data Solutia: Utilizing Sub-Metering to Drive Energy Project Approvals Through Data This case study describes how Solutia uses sub-meters at all of its U.S. facilities to understand how equipment is running and to identify quick and inexpensive energy efficiency solutions, like reducing the run-time for a compressed air system at its Trenton, Michican plant. Solutia: Utilizing Sub-Metering to Drive

  2. Pollution prevention drives membrane technologies

    SciTech Connect

    Cartwright, P.

    1994-09-01

    Currently, such membrane technologies as crossflow micro-, ultra-, and nanofiltration, reverse osmosis, electrodialysis and pervaporation offer interesting possibilities, each tackling a specific aspect of pollution control. Although none of these methods can, on its own, alter or break down pollutants, each has the ability to separate, fractionate and concentrate contaminants. In addition, they: permit continuous, uninterrupted processing via automatic control; use far less energy than traditional treatment methods; require only minimal temperature changes and no chemical additives; exert no impact on contaminants, and keep them physically separated from the stream; and are easy to install, either alone or combined with other treatment systems, since they are modular and contain few moving parts. The paper discusses the benefits and disadvantages of membrane technology and recommends thorough testing.

  3. Electrifying Your Drive | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Electrifying Your Drive Electrifying Your Drive April 27, 2010 - 7:30am Addthis Shannon Brescher Shea Senior Writer/Editor, Office of Science For anyone who grew up watching The Jetsons (or Back to the Future, depending on your generation), the "Car of the Future!" flew through the skies with the greatest of ease. Although most of us have given up on our hopes of a flying car, anything beyond the internal combustion engine has seemed hopelessly out of reach until recently. However,

  4. What Drives U.S. Gasoline Prices?

    Energy Information Administration (EIA) (indexed site)

    What Drives U.S. Gasoline Prices? October 2014 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | What Drives U.S. Gasoline Prices? i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States

  5. GPS Data Filtration Method for Drive Cycle Analysis Applications

    SciTech Connect

    Duran, A.; Earleywine, M.

    2013-02-01

    When employing GPS data acquisition systems to capture vehicle drive-cycle information, a number of errors often appear in the raw data samples, such as sudden signal loss, extraneous or outlying data points, speed drifting, and signal white noise, all of which limit the quality of field data for use in downstream applications. Unaddressed, these errors significantly impact the reliability of source data and limit the effectiveness of traditional drive-cycle analysis approaches and vehicle simulation software. Without reliable speed and time information, the validity of derived metrics for drive cycles, such as acceleration, power, and distance, become questionable. This study explores some of the common sources of error present in raw onboard GPS data and presents a detailed filtering process designed to correct for these issues. Test data from both light and medium/heavy duty applications are examined to illustrate the effectiveness of the proposed filtration process across the range of vehicle vocations. Graphical comparisons of raw and filtered cycles are presented, and statistical analyses are performed to determine the effects of the proposed filtration process on raw data. Finally, an evaluation of the overall benefits of data filtration on raw GPS data and present potential areas for continued research is presented.

  6. Carbon Sequestration in Dryland and Irrigated Agroecosystems: Quantification at Different Scales for Improved Prediction

    SciTech Connect

    Verma, Shashi B; Cassman, Kenneth G; Arkebauer, Timothy J; Hubbard, Kenneth G; Knops, Johannes M; Suyker, Andrew E

    2012-09-14

    The overall objective of this research is to improve our basic understanding of the biophysical processes that govern C sequestration in major rainfed and irrigated agroecosystems in the north-central USA.

  7. C.R.S. 37 - Water and Irrigation | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    navigation, search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: C.R.S. 37 - Water and IrrigationLegal Abstract This statutory provision governs Colorado...

  8. Drive Cycle Analysis, Measurement of Emissions and Fuel Consumption of a PHEV School Bus: Preprint

    SciTech Connect

    Barnitt, R.; Gonder, J.

    2011-04-01

    The National Renewable Energy Laboratory (NREL) collected and analyzed real-world school bus drive cycle data and selected similar standard drive cycles for testing on a chassis dynamometer. NREL tested a first-generation plug-in hybrid electric vehicle (PHEV) school bus equipped with a 6.4L engine and an Enova PHEV drive system comprising a 25-kW/80 kW (continuous/peak) motor and a 370-volt lithium ion battery pack. A Bluebird 7.2L conventional school bus was also tested. Both vehicles were tested over three different drive cycles to capture a range of driving activity. PHEV fuel savings in charge-depleting (CD) mode ranged from slightly more than 30% to a little over 50%. However, the larger fuel savings lasted over a shorter driving distance, as the fully charged PHEV school bus would initially operate in CD mode for some distance, then in a transitional mode, and finally in a charge-sustaining (CS) mode for continued driving. The test results indicate that a PHEV school bus can achieve significant fuel savings during CD operation relative to a conventional bus. In CS mode, the tested bus showed small fuel savings and somewhat higher nitrogen oxide (NOx) emissions than the baseline comparison bus.

  9. Alternative Fuels Data Center: Efficient Driving Behaviors to Conserve Fuel

    Alternative Fuels and Advanced Vehicles Data Center

    Efficient Driving Behaviors to Conserve Fuel to someone by E-mail Share Alternative Fuels Data Center: Efficient Driving Behaviors to Conserve Fuel on Facebook Tweet about Alternative Fuels Data Center: Efficient Driving Behaviors to Conserve Fuel on Twitter Bookmark Alternative Fuels Data Center: Efficient Driving Behaviors to Conserve Fuel on Google Bookmark Alternative Fuels Data Center: Efficient Driving Behaviors to Conserve Fuel on Delicious Rank Alternative Fuels Data Center: Efficient

  10. Alternative Fuels Data Center: Worcester Regional Transit Authority Drives

    Alternative Fuels and Advanced Vehicles Data Center

    Electric Worcester Regional Transit Authority Drives Electric to someone by E-mail Share Alternative Fuels Data Center: Worcester Regional Transit Authority Drives Electric on Facebook Tweet about Alternative Fuels Data Center: Worcester Regional Transit Authority Drives Electric on Twitter Bookmark Alternative Fuels Data Center: Worcester Regional Transit Authority Drives Electric on Google Bookmark Alternative Fuels Data Center: Worcester Regional Transit Authority Drives Electric on

  11. Vehicle Technologies Office: U.S. DRIVE 2015 Technical Accomplishments

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Report | Department of Energy U.S. DRIVE 2015 Technical Accomplishments Report Vehicle Technologies Office: U.S. DRIVE 2015 Technical Accomplishments Report The U.S. DRIVE 2015 Highlights of Technical Accomplishments Report summarizes key technical accomplishments in the development of advanced automotive and related energy infrastructure technologies achieved in 2015 by the U.S. DRIVE partnership. 2015 U.S. DRIVE Technical Accomplishments Report (3.56 MB) More Documents & Publications

  12. QER- Comment of Electric Drive Transportation Association

    Energy.gov [DOE]

    Please find attached the comments of the Electric Drive Transportation Association regarding the first volume of the Department of Energy’s QER. If you have questions about our submittal or require further information, please contact me using the information provided below. Thank you for the opportunity to comment. Genevieve Cullen

  13. Regional climate effects of irrigation and urbanization in thewestern united states: a model intercomparison

    SciTech Connect

    Snyder, M.A.; Kueppers, L.M.; Sloan, L.C.; Cavan, D.C.; Jin, J.; Kanamaru, H.; Miller, N.L.; Tyree, M.; Du, H.; Weare, B.

    2006-05-01

    In the western United States, more than 30,500 square miles has been converted to irrigated agriculture and urban areas. This study compares the climate responses of four regional climate models (RCMs) to these past land-use changes. The RCMs used two contrasting land cover distributions: potential natural vegetation, and modern land cover that includes agriculture and urban areas. Three of the RCMs represented irrigation by supplementing soil moisture, producing large decreases in August mean (-2.5 F to -5.6 F) and maximum (-5.2 F to -10.1 F) 2-meter temperatures where natural vegetation was converted to irrigated agriculture. Conversion to irrigated agriculture also resulted in large increases in relative humidity (9 percent 36 percent absolute change). Only one of the RCMs produced increases in summer minimum temperature. Converting natural vegetation to urban land cover produced modest but discernable climate effects in all models, with the magnitude of the effects dependent upon the preexisting vegetation type. Overall, the RCM results indicate that land use change impacts are most pronounced during the summer months, when surface heating is strongest and differences in surface moisture between irrigated land and natural vegetation are largest. The irrigation effect on summer maximum temperatures is comparable in magnitude (but opposite in sign) to predicted future temperature change due to increasing greenhouse gas concentrations.

  14. Replace V-Belts with Notched or Synchronous Belt Drives

    Energy.gov [DOE]

    Belt drives provide flexibility in the positioning of the motor relative to the load. Pulleys (sheaves) of varying diameters allow the speed of the driven equipment to be increased or decreased relative to the motor speed. A properly designed belt power-transmission system offers high efficiency and low noise, requires no lubrication, and presents low maintenance requirements. However, certain types of belts are more efficient than others, offering potential energy cost savings. This tip sheet provides example energy savings calculations and offers suggested actions.

  15. Recent experimental results of KSTAR RF heating and current drive

    SciTech Connect

    Wang, S. J. Kim, J.; Jeong, J. H.; Kim, H. J.; Joung, M.; Bae, Y. S.; Kwak, J. G.

    2015-12-10

    The overview of KSTAR activities on ICRH, LHCD and ECH/CD including the last experimental results and future plan aiming for long-pulse high-beta plasma will be presented. Recently we achieved reasonable coupling of ICRF power to H-mode plasma through several efforts to increase system reliability. Power balance will be discussed on this experiment. LHCD is still struggling in the low power regime. Review of antenna spectrum for the higher coupling in H-mode plasma will be tried. ECH/CD provides 41 sec, 0.8 MW of heating power to support high-performance long-pulse discharge. Also, 170 GHz ECH system is integrated with the Plasma Control System (PCS) for the feedback controlling of NTM. Status and plan of ECH/CD will be discussed. Finally, helicon current drive is being prepared for the next stage of KSTAR operation. The hardware preparation and the calculation results of helicon current drive in KSTAR plasma will be discussed.

  16. Drive piston assembly for a valve actuator assembly

    DOEpatents

    Sun, Zongxuan

    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.

  17. Impact assessment of land use planning driving forces on environment

    SciTech Connect

    Chen, Longgao; Yang, Xiaoyan; Chen, Longqian; Li, Long

    2015-11-15

    Land use change may exert a negative impact on environmental quality. A state–impact–state (SIS) model describing a state transform under certain impacts has been integrated into land use planning (LUP) environmental impact assessment (LUPEA). This logical model is intuitive and easy to understand, but the exploration of impact is essential to establish the indicator system and to identify the scope of land use environmental impact when it is applied to a specific region. In this study, we investigated environmental driving forces from land use planning (LUPF), along with the conception, components, scope, and impact of LUPF. This method was illustrated by a case study in Zoucheng, China. Through the results, we concluded that (1) the LUPF on environment are impacts originated from the implementation of LUP on a regional environment, which are characterized by four aspects: magnitude, direction, action point, and its owner; (2) various scopes of LUPF on individual environmental elements based on different standards jointly define the final scope of LUPEA; (3) our case study in Zoucheng demonstrates the practicability of this proposed approach; (4) this method can be embedded into LUPEA with direction, magnitudes, and scopes of the LUPF on individual elements obtained, and the identified indicator system can be directly employed into LUPEA and (5) the assessment helps to identify key indicators and to set up a corresponding strategy to mitigate the negative impact of LUP on the environment, which are two important objectives of strategic environmental assessment (SEA) in LUP. - Highlights: • Environmental driving forces from land use planning (LUPF) are investigated and categorized. • Our method can obtains the direction, magnitudes and scopes of environmental driving forces. • The LUPEA scope is determined by the combination of various scopes of LUPF on individual elements. • LUPF assessment can be embedded into LUPEA. • The method can help to

  18. Lynch Canyon combination thermal drive project. [Termination

    SciTech Connect

    Stair, J. R.

    1980-11-01

    The following report provides a summary of the Lynch Canyon Thermal Drive Project. This demonstration project was begun in 1978 and terminated in 1980. The project originally was divided into four phases; Geologic Evaluation, Injectivity Test, Field Development Combined with Air-Water Injection, and a Project Review. Following the First Phase operations, which included drilling of four wells for geologic evaluation, a joint decision to cancel the project was made. The conditions which were thought to exist at the initiation of the project, would have provided an excellent opportunity to conduct a Pilot Combination Thermal Drive. However, potential problems which were discovered in the Phase One Operations significantly altered the economics of the project and removed the favorable conditions under which the project was begun.

  19. Integrated Inverter For Driving Multiple Electric Machines

    DOEpatents

    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.

  20. NEUTRONIC REACTOR CONTROL ROD DRIVE APPARATUS

    DOEpatents

    Oakes, L.C.; Walker, C.S.

    1959-12-15

    ABS>A suspension mechanism between a vertically movable nuclear reactor control rod and a rod extension, which also provides information for the operator or an automatic control signal, is described. A spring connects the rod extension to a drive shift. The extension of the spring indicates whether (1) the rod is at rest on the reactor, (2) the rod and extension are suspended, or (3) the extension alone is suspended, the spring controlling a 3-position electrical switch.

  1. Water relations of differentially irrigated cotton exposed to ozone

    SciTech Connect

    Temple, P.J.

    1990-01-01

    The field study was conducted to test the hypothesis that plants chronically exposed to O{sub 3} may be more susceptible to drought because O{sub 3} typically inhibits root growth and increases shoot-root ratios in plants. Cotton was grown in open-top chambers on Hanford coarse sandy loam in Riverside, CA. Plants were grown under three irrigation regimes: Optimum water for lint production (OW), suboptimum or moderate drought stress (SO), and severely drought stressed (SS) and were exposed to seasonal 12 h (0800-2000) O{sub 3} centrations of 0.015, 0.074, 0.094, or 0.111/microLL. Leaf xylem pressure potentials Psi(sub 1) and soil water content Theta(sub v) were measured weekly from June to October. Mean seasonal Psi(sub 1) increased from -1.89 MPa to -1.72 MPa in low to high O{sub 3} treatments, averaged across soil water regimes. Ozone had no effect on seasonal water use of cotton, but water use efficiency was significantly reduced by O{sub 3} in OW and SO, but not in SS treatments. Drought-stressed plants extracted proportionally greater amounts of water from deeper in the soil profile than OW cotton, and O{sub 3} had no apparent effect on this redistribution of roots in the soil. Since O{sub 3} had no apparent effect on the ability of drought-stressed cotton to maintain Psi(sub 1) and to increase root growth relative to shoot growth, this suggests that O{sub 3} may have little or no effect on the potential of cotton to adapt to or tolerate drought.

  2. Fast wave current drive in DEMO

    SciTech Connect

    Lerche, E.; Van Eestera, D.; Messiaen, A.; Collaboration: EFDA-PPPT Contributors

    2014-02-12

    The ability to non-inductively drive a large fraction of the toroidal plasma current in magnetically confined plasmas is an essential requirement for steady state fusion reactors such as DEMO. Besides neutral beam injection (NBI), electron-cyclotron resonance heating (ECRH) and lower hybrid wave heating (LH), ion-cyclotron resonance heating (ICRH) is a promising candidate to drive current, in particular at the high temperatures expected in fusion plasmas. In this paper, the current drive (CD) efficiencies calculated with coupled ICRF wave / CD numerical codes for the DEMO-1 design case (R{sub 0}=9m, B{sub 0}=6.8T, a{sub p}=2.25m) [1] are presented. It will be shown that although promising CD efficiencies can be obtained in the usual ICRF frequency domain (20-100MHz) by shifting the dominant ion-cyclotron absorption layers to the high-field side, operation at higher frequencies (100-300MHz) has a stronger CD potential, provided the parasitic RF power absorption of the alpha particles can be minimized.

  3. Design and Implementation of a Hall Effect Sensor Array Applied to Recycling Hard Drive Magnets

    SciTech Connect

    Kisner, Roger; Lenarduzzi, Roberto; Killough, Stephen M; McIntyre, Timothy J

    2015-01-01

    Rare earths are an important resource for many electronic components and technologies. Examples abound including Neodymium magnets used in mobile devices and computer hard drives (HDDs), and a variety of renewable energy technologies (e.g., wind turbines). Approximately 21,000 metric tons of Neodymium is processed annually with less than 1% being recycled. An economic system to assist in the recycling of magnet material from post-consumer goods, such as Neodymium Iron Boron magnets commonly found in hard drives is presented. A central component of this recycling measurement system uses an array of 128 Hall Effect sensors arranged in two columns to detect the magnetic flux lines orthogonal to the HDD. Results of using the system to scan planar shaped objects such as hard drives to identify and spatially locate rare-earth magnets for removal and recycling from HDDs are presented. Applications of the sensor array in other identification and localization of magnetic components and assemblies will be presented.

  4. DOE Releases U.S. DRIVE Technical Accomplishments Report

    Office of Energy Efficiency and Renewable Energy (EERE)

    The DOE's Vehicle Technologies Office recently released the 2013 U.S. DRIVE Technical Accomplishments report, which describes nearly 70 key achievements of DOE-funded projects carried out by U.S. DRIVE partners.

  5. 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 ...

  6. Annual blood drive collects 34 units | The Ames Laboratory

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Annual blood drive collects 34 units Ames Laboratory's annual American Red Cross Blood Drive, held June 8, collected 34 units of blood from 32 donors. Melinda Schlosser (left) and ...

  7. INTEGRATED ELECTRIC DRIVE WITH HV2 MODULAR ELECTRIC MACHINE AND...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ELECTRIC DRIVE WITH HV2 MODULAR ELECTRIC MACHINE AND SIC BASED POWER CONVERTERS INTEGRATED ELECTRIC DRIVE WITH HV2 MODULAR ELECTRIC MACHINE AND SIC BASED POWER CONVERTERS The Ohio ...

  8. Driving Demand: Door-to-Door Outreach & Tracking Impacts | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Driving Demand: Door-to-Door Outreach & Tracking Impacts Driving Demand: Door-to-Door Outreach & Tracking Impacts This webinar covered door-to-door outreach and tracking metrics ...

  9. Vehicle Technologies Office Merit Review 2015: Electric Drive...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Electric Drive Inverter R&D Vehicle Technologies Office Merit Review 2015: Electric Drive Inverter R&D Presentation given by Oak Ridge National Laboratory at 2015 DOE Hydrogen and ...

  10. Medium- and Heavy-Duty Electric Drive Vehicle Simulation and...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis 2012 DOE Hydrogen and Fuel Cells Program ...

  11. Do You Drive a Hybrid Electric Vehicle? | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Drive a Hybrid Electric Vehicle? Do You Drive a Hybrid Electric Vehicle? July 9, 2009 - 1:34am Addthis In Tuesday's entry, Francis X. Vogel from the Wisconsin Clean Cities ...

  12. Test Driving the Toyota Mirai | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Test Driving the Toyota Mirai Test Driving the Toyota Mirai Watch Secretary Ernest Moniz take a spin in the Toyota Mirai, the first fuel cell electric vehicle available for sale.

  13. Fact #759: December 24, 2012 Rural vs. Urban Driving Differences

    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. Secrets of the Motor That Drives Archaea Revealed

    U.S. Department of Energy (DOE) - all 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...

  15. Small Businesses Helping Drive Economy: Clean Energy, Clean Sites |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Businesses Helping Drive Economy: Clean Energy, Clean Sites Small Businesses Helping Drive Economy: Clean Energy, Clean Sites A memo on small businesses helping drive the economy: clean energy and clean sites. Small Businesses Helping Drive Economy: Clean Energy, Clean Sites (257.52 KB) More Documents & Publications Small_Business_Memo_Mar2010.pdf Federal Incentives for Wind Power Deployment Remarks by David Sandalow, Assistant Secretary of Energy for Policy and

  16. EV Everywhere Grand Challenge - Electric Drive (Power Electronics and

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Electric Machines) Workshop | Department of Energy - Electric Drive (Power Electronics and Electric Machines) Workshop EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop List of companies in attendance at the Electric Drive Workshop held on July 24, 2012 at the Doubletree O'Hare, Chicago, IL companies_in_attendance_ed.pdf (145.65 KB) More Documents & Publications EV Everywhere Grand Challenge Introduction for Electric Drive Workshop EV

  17. U.S. DRIVE Highlights of Technical Accomplishments Overview

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Page i | Preface U.S. DRIVE Highlights of Technical Accomplishments Overview Through precompetitive collaboration and technical information exchange, U.S. DRIVE partners are accelerating the development and availability of clean, efficient automotive and energy technologies. The U.S. DRIVE Partnership (Driving Research for Vehicle efficiency and Energy sustainability) is a voluntary government-industry partnership focused on precompetitive, advanced automotive and related infrastructure

  18. Vehicle Technologies Office: US DRIVE Partnership Plan, Roadmaps, and

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Accomplishments | Department of Energy US DRIVE Partnership Plan, Roadmaps, and Accomplishments Vehicle Technologies Office: US DRIVE Partnership Plan, Roadmaps, and Accomplishments U.S. DRIVE roadmaps and previous accomplishments reports are available for reference and information. Partnership Plan U.S. DRIVE Partnership Plan - November 2016 Roadmaps Advanced Combustion and Emissions Control: Advanced Combustion and Emission Control Technical Team Roadmap Electrical and Electronics:

  19. Vehicle Technologies Office: U.S. DRIVE 2013 Technical Accomplishments

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Report | Department of Energy 3 Technical Accomplishments Report Vehicle Technologies Office: U.S. DRIVE 2013 Technical Accomplishments Report The U.S. DRIVE 2013 Highlights of Technical Accomplishments Report summarizes key technical accomplishments in the development of advanced automotive and related energy infrastructure technologies achieved in 2013 by the U.S. DRIVE partnership. 2013USDRIVEAccomplishmentsReport.pdf (14.75 MB) More Documents & Publications US DRIVE Electrochemical

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Report | Department of Energy 4 Technical Accomplishments Report Vehicle Technologies Office: U.S. DRIVE 2014 Technical Accomplishments Report The U.S. DRIVE 2014 Highlights of Technical Accomplishments Report summarizes key technical accomplishments in the development of advanced automotive and related energy infrastructure technologies achieved in 2014 by the U.S. DRIVE partnership. 2014 U.S. DRIVE Technical Accomplishments Report (4.84 MB) More Documents & Publications Vehicle

  1. Modeling the Effects of Irrigation on Land Surface Fluxes and States over the Conterminous United States: Sensitivity to Input Data and Model Parameters

    SciTech Connect

    Leng, Guoyong; Huang, Maoyi; Tang, Qiuhong; Sacks, William J.; Lei, Huimin; Leung, Lai-Yung R.

    2013-09-16

    Previous studies on irrigation impacts on land surface fluxes/states were mainly conducted as sensitivity experiments, with limited analysis of uncertainties from the input data and model irrigation schemes used. In this study, we calibrated and evaluated the performance of irrigation water use simulated by the Community Land Model version 4 (CLM4) against observations from agriculture census. We investigated the impacts of irrigation on land surface fluxes and states over the conterminous United States (CONUS) and explored possible directions of improvement. Specifically, we found large uncertainty in the irrigation area data from two widely used sources and CLM4 tended to produce unrealistically large temporal variations of irrigation demand for applications at the water resources region scale over CONUS. At seasonal to interannual time scales, the effects of irrigation on surface energy partitioning appeared to be large and persistent, and more pronounced in dry than wet years. Even with model calibration to yield overall good agreement with the irrigation amounts from the National Agricultural Statistics Service (NASS), differences between the two irrigation area datasets still dominate the differences in the interannual variability of land surface response to irrigation. Our results suggest that irrigation amount simulated by CLM4 can be improved by (1) calibrating model parameter values to account for regional differences in irrigation demand and (2) accurate representation of the spatial distribution and intensity of irrigated areas.

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

    U.S. Department of Energy (DOE) - all 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 U.S. birth certificate or unexpired U.S. passport will serve as both proof of identity and proof of legal presence. It can also be proved using a variety of other documents, such as a Certificate of Citizenship, Resident Alien Card or a valid foreign passport with a visa, I-94 or I-94W from a participating country. If

  3. Inflow performance relationships for solution-gas-drive reservoirs

    SciTech Connect

    Camacho-V, R.G.; Raghavan, R.

    1989-05-01

    In this theoretical study, a numerical model was used to examine the influence of pressure level and skin factor on the inflow performance relationships (IPR's) of wells producing under solution-gas-drive systems. Examination of the synthetic deliverability curves suggests that the exponent of the deliverability curve is a function of time and that the exponent is usually greater than unity. The implication of this observation to field data is discussed. The accuracy of procedures given in the literature to predict oilwell deliverabilities is also examined. It is shown that these methods can be used to predict future performance provided that the exponent of the deliverability curve is known and that extrapolations over large time ranges are avoided. If single-point tests are used to predict future performance (such tests assume that the exponent of the deliverability curve is constant), then errors in predictions will be minimized. Although relative permeability and fluid property data are required, the Muskat material-balance equation and the assumption that GOR is independent of distance can be used to predict future production rates. This method avoids problems associated with other methods in the literature and always yields reliable results. New methods to modify the IPR curve to incorporate changes in skin factor are presented. A new flow-efficiency definition based on the structure of the deliverability equations for solution-gas-drive reservoirs is proposed. This definition avoids problems that result when the currently available methods are applied to heavily stimulated wells.

  4. Oscillatory nonhmic current drive for maintaining a plasma current

    DOEpatents

    Fisch, Nathaniel J.

    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.

  5. Oscillatory nonohomic current drive for maintaining a plasma current

    DOEpatents

    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.

  6. DOE Tour of Zero Floorplans: Marine Drive by Clifton View Homes...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Marine Drive by Clifton View Homes DOE Tour of Zero Floorplans: Marine Drive by Clifton View Homes DOE Tour of Zero Floorplans: Marine Drive by Clifton View...

  7. Biogas systems in India

    SciTech Connect

    Lichtman, R.J.

    1983-01-01

    In addition to an analysis of household energy consumption, three scenarios are presented for the economic analysis of energy systems used for cooking, lighting, irrigation, and rice husk-cement manufacture. Digester design and feedstock variations are discussed. Problems such as gas pricing, sociological problems of distribution to diverse ethnic groups, and the complexity of technology transfer are mentioned. (CKK)

  8. Heel and toe driving on fuel cell vehicle

    SciTech Connect

    Choi, Tayoung; Chen, Dongmei

    2012-12-11

    A system and method for providing nearly instantaneous power in a fuel cell vehicle. The method includes monitoring the brake pedal angle and the accelerator pedal angle of the vehicle, and if the vehicle driver is pressing both the brake pedal and the accelerator pedal at the same time and the vehicle is in a drive gear, activating a heel and toe mode. When the heel and toe mode is activated, the speed of a cathode compressor is increased to a predetermined speed set-point, which is higher than the normal compressor speed for the pedal position. Thus, when the vehicle brake is removed, the compressor speed is high enough to provide enough air to the cathode, so that the stack can generate nearly immediate power.

  9. Driving Operational Changes Through an Energy Monitoring System

    Office of Energy Efficiency and Renewable Energy (EERE)

    Fact sheet describes a case study of IBM's corporate energy efficiency monitoring program that focuses on basic improvements in its real estate operations.

  10. Driving Operational Changes through an Energy Monitoring System

    SciTech Connect

    2012-08-01

    Institutional change case study details IBM's corporate efficiency program focused on basic operation improvements in its diverse real estate operations.

  11. Evaluation of the 2010 Toyota Prius Hybrid Synergy Drive System...

    Office of Scientific and Technical Information (OSTI)

    Authors: Burress, Timothy A 1 ; Campbell, Steven L 1 ; Coomer, Chester 1 ; Ayers, Curtis William 1 ; Wereszczak, Andrew A 1 ; Cunningham, Joseph Philip 1 ; Marlino, ...

  12. Evaluation of the 2007 Toyota Camry Hybrid Synergy Drive System...

    Office of Scientific and Technical Information (OSTI)

    Authors: Burress, T A ; Coomer, C L ; Campbell, S L ; Seiber, L E ; Marlino, L D ; Staunton, R H ; Cunningham, J P Publication Date: 2008-04-15 OSTI Identifier: 928684 Report ...

  13. Evaluation of 2004 Toyota Prius Hybrid Electric Drive System...

    Office of Scientific and Technical Information (OSTI)

    The 2004 Toyota Prius is a hybrid automobile equipped with a gasoline engine and a battery- and generator-powered electric motor. Both of these motive-power sources are capable of ...

  14. A Segmented Drive System with a Small DC Bus Capacitor

    Energy.gov [DOE]

    2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

  15. Evaluation of the 2010 Toyota Prius Hybrid Synergy Drive System

    SciTech Connect

    Burress, Timothy A; Campbell, Steven L; Coomer, Chester; Ayers, Curtis William; Wereszczak, Andrew A; Cunningham, Joseph Philip; Marlino, Laura D; Seiber, Larry Eugene; Lin, Hua-Tay

    2011-03-01

    Subsystems of the 2010 Toyota Prius hybrid electric vehicle (HEV) were studied and tested as part of an intensive benchmarking effort carried out to produce detailed information concerning the current state of nondomestic alternative vehicle technologies. Feedback provided by benchmarking efforts is particularly useful to partners of the Vehicle Technologies collaborative research program as it is essential in establishing reasonable yet challenging programmatic goals which facilitate development of competitive technologies. The competitive nature set forth by the Vehicle Technologies Program (VTP) not only promotes energy independence and economic stability, it also advocates the advancement of alternative vehicle technologies in an overall global perspective. These technologies greatly facilitate the potential to reduce dependency on depleting natural resources and mitigate harmful impacts of transportation upon the environment.

  16. Next Generation Environmentally Friendly Driving Feedback Systems Research and Development

    Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  17. Evaluation of the 2007 Toyota Camry Hybrid Synergy Drive System...

    Office of Scientific and Technical Information (OSTI)

    The mission of the FCVT program is to develop more energy efficient and environmentally friendly highway transportation technologies. Program activities include research, ...

  18. Vehicle drive module having improved EMI shielding

    DOEpatents

    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.

  19. Vehicle drive module having improved terminal design

    DOEpatents

    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.

  20. Vehicle drive module having improved cooling configuration

    DOEpatents

    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.

  1. Oak Ridge Institutional Cluster Autotune Test Drive Report

    SciTech Connect

    Jibonananda, Sanyal; New, Joshua Ryan

    2014-02-01

    The Oak Ridge Institutional Cluster (OIC) provides general purpose computational resources for the ORNL staff to run computation heavy jobs that are larger than desktop applications but do not quite require the scale and power of the Oak Ridge Leadership Computing Facility (OLCF). This report details the efforts made and conclusions derived in performing a short test drive of the cluster resources on Phase 5 of the OIC. EnergyPlus was used in the analysis as a candidate user program and the overall software environment was evaluated against anticipated challenges experienced with resources such as the shared memory-Nautilus (JICS) and Titan (OLCF). The OIC performed within reason and was found to be acceptable in the context of running EnergyPlus simulations. The number of cores per node and the availability of scratch space per node allow non-traditional desktop focused applications to leverage parallel ensemble execution. Although only individual runs of EnergyPlus were executed, the software environment on the OIC appeared suitable to run ensemble simulations with some modifications to the Autotune workflow. From a standpoint of general usability, the system supports common Linux libraries, compilers, standard job scheduling software (Torque/Moab), and the OpenMPI library (the only MPI library) for MPI communications. The file system is a Panasas file system which literature indicates to be an efficient file system.

  2. Traction drive automatic transmission for gas turbine engine driveline

    DOEpatents

    Carriere, Donald L.

    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.

  3. MEDIUM VOLTAGE INTEGRATED DRIVE AND MOTOR | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    MEDIUM VOLTAGE INTEGRATED DRIVE AND MOTOR MEDIUM VOLTAGE INTEGRATED DRIVE AND MOTOR Calnetix Technologies - Cerritos, CA This project will focus on integrating a high voltage SiC device with advanced high-speed machine technology, medium voltage stators, high efficiency magnetic bearings and sensor high frequency drive technology that can work directly with high voltages, switch at high frequencies for low machine losses, and do so very efficiently. The new medium voltage motors are expected to

  4. Development of Radically Enhanced alnico Magnets (DREAM) for Traction Drive

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Motors | The Ames Laboratory Development of Radically Enhanced alnico Magnets (DREAM) for Traction Drive Motors Research Personnel Publications Synthesis In order to enable domestic automobile makers to offer a broad range of vehicles with electric drive motors with either hybrid or purely electric motor drives, this project will utilize a demonstrated science-based process to design and synthesize a high energy product permanent magnet of the alnico type in bulk final shapes without rare

  5. CTO Speaks to Government's Role in Driving Innovation | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy CTO Speaks to Government's Role in Driving Innovation CTO Speaks to Government's Role in Driving Innovation December 4, 2014 - 3:13pm Addthis Robert G. Green Robert G. Green Principal Deputy CIO for Enterprise Information Resources Management Last week, I provided an opening keynote at the Management of Government Technology Annual Summit entitled, Driving Government Innovation: Process and Technology to Achieve Success. Other speakers included a former Chief Information Officer of

  6. Center for Electric Drive Transportation at the University of Michigan -

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Dearborn | Department of Energy Center for Electric Drive Transportation at the University of Michigan - Dearborn Center for Electric Drive Transportation at the University of Michigan - Dearborn 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting ti020_mi_2012_p.pdf (777.6 KB) More Documents & Publications Center for Electric Drive Transportation at the University of Michigan - Dearborn Vehicle Technologies Office

  7. Electromagnetically induced transparency with a partially standing drive field

    SciTech Connect

    Strekalov, Dmitry V.; Matsko, Andrey B.; Yu, Nan

    2007-11-15

    We study electromagnetically induced transparency in a vacuum rubidium atomic cell and show that reflected drive radiation results in the reshaping and shift of dark resonance. We show that those effects are connected with (i) Bragg reflection of the probe radiation in optically thick atomic coherent medium modulated by the standing-wave drive field, as well as with (ii) quantum interference enhanced absorption of the probe radiation in four-level N-configuration formed due to the reflected drive field.

  8. EV Everywhere: Drive Electric Vermont Case Study | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EV Everywhere: Drive Electric Vermont Case Study EV Everywhere: Drive Electric Vermont Case Study In this case study, the U.S. Department of Energy's EV Everywhere Grand Challenge looks carefully at the barriers and opportunities that exist to enable small and midsize communities to partake in the PEV market and benefit from the economic and environmental advantages of PEVs. In order to gain insight into these challenges and barriers, DOE selected Drive Electric Vermont as the subject of a case

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    and Industrial Sectors | Department of Energy Countries Launch Initiative to Drive Energy Efficiency in the Commercial and Industrial Sectors Countries Launch Initiative to Drive Energy Efficiency in the Commercial and Industrial Sectors A fact sheet on the global superior energy performance partnership from the Clean Energy Ministerial. Countries Launch Initiative to Drive Energy Efficiency in the Commercial and Industrial Sectors (123.65 KB) More Documents & Publications Countries

  10. U.S. DRIVE Technical Team Technology Roadmaps

    SciTech Connect

    none,

    2012-03-16

    U.S. DRIVE stands for Driving Research and Innovation for Vehicle efficiency and Energy sustainability. It is a non-binding and voluntary government-industry partnership focused on advanced automotive and related infrastructure technology research and development (R&D). As the Partnership updates its documents to reflect the transition to U.S. DRIVE, current roadmaps and previous accomplishments reports are available for reference and information.

  11. DOE Campaign Proves Commercial Lighting Upgrades Drive Savings | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Campaign Proves Commercial Lighting Upgrades Drive Savings DOE Campaign Proves Commercial Lighting Upgrades Drive Savings July 11, 2016 - 12:08pm Addthis DOE Campaign Proves Commercial Lighting Upgrades Drive Savings By Monica Kanojia The Interior Lighting Campaign (Campaign) has seen tremendous success since its inception with more than 160 leading organizations signing on as participants and supporters. Launched as one of the Better Buildings Initiative's Technology Campaigns in

  12. Global Energy Leaders Gather in California to Drive Clean Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Development and Deployment | Department of Energy Global Energy Leaders Gather in California to Drive Clean Energy Development and Deployment Global Energy Leaders Gather in California to Drive Clean Energy Development and Deployment May 31, 2016 - 9:50am Addthis Global Energy Leaders Gather in California to Drive Clean Energy Development and Deployment Dr. Ernest Moniz Dr. Ernest Moniz Secretary of Energy This week, I'm in San Francisco to host the first gathering of global energy ministers

  13. Technology Test Drive: PNNL Offers Exploratory Licenses | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Technology Test Drive: PNNL Offers Exploratory Licenses Technology Test Drive: PNNL Offers Exploratory Licenses May 10, 2016 - 11:59am Addthis News release from Pacific Northwest National Laboratory, May 9, 2016. RICHLAND, Wash. - Signing a two-page agreement and paying just $1,000 can get U.S. companies an opportunity to test drive promising technologies through a new, user-friendly commercialization option being offered at the Department of Energy's Pacific Northwest National

  14. High-Voltage Solid Polymer Batteries for Electric Drive Vehicles |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy High-Voltage 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 Technologies Program Annual Merit Review and Peer Evaluation Meeting es129_eitouni_2012_p.pdf (644.7 KB) More Documents & Publications High-Voltage Solid Polymer Batteries for Electric Drive Vehicles Vehicle Technologies Office Merit Review 2014: High-Voltage Solid Polymer Batteries for

  15. Adjustable Speed Drive Part-Load Efficiency

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... the system effciency is the product of the VFD effciency, the motor effciency at its load point, and the driven equipment effciency (system VFD x Motor x Equipment ). ...

  16. U.S. DRIVE Highlights of Technical Accomplishments 2012 | Department...

    Energy.gov [DOE] (indexed site)

    More Documents & Publications Vehicle Technologies Office: U.S. DRIVE 2014 Technical Accomplishments Report Overview of Battery R&D Activities Progress of DOE Materials, ...

  17. Advanced Electric Drive Vehicles … A Comprehensive Education...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    A Comprehensive Education, Training, and Outreach Program Advanced Electric Drive Vehicles A Comprehensive Education, Training, and Outreach Program US-India S&T Agreement

  18. Manganese Reduction-Oxidation Drives Plant Debris Decomposition

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Manganese Reduction-Oxidation Drives Plant Debris Decomposition Print Microbial decomposition of plant debris ("litter") is a keystone ecosystem process because it regulates ...

  19. 10MW Class Direct Drive HTS Wind Turbine: Cooperative Research...

    Office of Scientific and Technical Information (OSTI)

    SEMICONDUCTOR; 20MW CLASS DIRECT DRIVE HTS WIND TURBINE; Commercialization and Technology Transfer Word Cloud More Like This Full Text preview image File size NAView Full Text ...

  20. "Permanent Magnet Generator-like AC Current Drive for Torroidal...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Permanent Magnet Generator-like AC Current Drive for Torroidal Fusion Devices" Inventor..--.. Ali Zolfaghari The scheme is similar to a permanent magnet generator. Large strong ...

  1. Fact #797: September 16, 2013 Driving Ranges for Electric Vehicles...

    Energy.gov [DOE] (indexed site)

    The figure below shows the Environmental Protection Agency (EPA) driving ranges for ... not directly match EPA-stated ranges that were obtained through actual vehicle testing. ...

  2. Global Energy Leaders Gather in California to Drive Clean Energy...

    Office of Environmental Management (EM)

    The focus of these meetings will be to expand international collaboration in clean energy research, development, demonstration and deployment to combat climate change, drive ...

  3. Gift tag drive benefits local children and seniors

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Dec. 2015-Jan. 2016 all issues All Issues submit Gift tag drive benefits local children and seniors Each year, Lab employees and contractors work to make the holidays...

  4. Multi-function magnetic jack control drive mechanism

    DOEpatents

    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.

  5. Multi-function magnetic jack control drive mechanism

    DOEpatents

    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.

  6. Consider Steam Turbine Drives for Rotating Equipment, Energy...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    1 Consider Steam Turbine Drives for Rotating Equipment Steam turbines are well suited as ... This service generally calls for a backpressure noncondensing steam turbine. The ...

  7. Critical Factors Driving the High Volumetric Uptake of Methane...

    U.S. Department of Energy (DOE) - all 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,...

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    More Documents & Publications Air-Cooled Traction Drive Inverter Benchmarking of Competitive Technologies High Temperature, High Voltage Fully Integrated Gate Driver Circuit

  9. Drive Cycle Analysis, Measurement of Emissions and Fuel Consumption...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Drive Cycle Analysis, Measurement of Emissions and Fuel Consumption of a PHEV School Bus ... Measurement of Emissions and Fuel Consumption of a PHEV School Bus Robb Barnitt and ...

  10. Strategies for Marketing and Driving Demand for Commercial Financing Products

    Office of Energy Efficiency and Renewable Energy (EERE)

    Better Buildings Neighborhood Program Financing and Commercial Peer Exchange Call: Strategies for Marketing and Driving Demand for Commercial Financing Products, Call Slides and Discussion Summary, February 2, 2012.

  11. FY 2014 Annual Progress Report - Electric Drive Technology Program

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    FY 2014 Annual Progress Report iii Electric Drive Technologies Program CONTENTS ACRONYMS AND ABBREVIATIONS ........................................................................................................................ xvi I. INTRODUCTION ................................................................................................................................................... 1 1.0 Introduction

  12. Thirteen States Receive Energy Department Awards to Drive Greater...

    Energy.gov [DOE] (indexed site)

    ... Thirteen States Receive Energy Department Awards to Drive Greater Energy Efficiency, Save Money Energy Department Awards 4 Million for State Energy Efficiency Energy Department ...

  13. Thirteen States Receive Energy Department Awards to Drive Greater...

    Energy.gov [DOE] (indexed site)

    ... Save Money Energy Department Awards 4 Million for State Energy Efficiency Thirteen States Receive Energy Department Awards to Drive Greater Energy Efficiency, Save Money Energy ...

  14. Driving Battery Production in Ohio | Department of Energy

    Energy Saver

    Advanced hybrid and electric drive vehicles will provide Americans with cleaner and more fuel efficient options while also safeguarding us from fluctuations in oil prices. I ...

  15. Accelerating the Electrification of U.S. Drive Trains: Ready...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Accelerating the Electrification of U.S. Drive Trains: Ready and Affordable Technology Solutions for Domestically Manufactured Advanced Batteries Accelerating the Electrification...

  16. Driving Change in Residential Energy Efficiency: Electric Vehicles (301)

    Office of Energy Efficiency and Renewable Energy (EERE)

    Better Buildings Residential Network Peer Exchange Call Series: Driving Change in Residential Energy Efficiency: Electric Vehicles (301), call slides and discussion summary.

  17. GIZ Sourcebook Module 4f: Eco Driving | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    is not the only one in the chain of actors involved in transport to influence fuel consumption. Manufacturers, legislators, driving schools and vehicle holders- they all can...

  18. High-Voltage Solid Polymer Batteries for Electric Drive Vehicles...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: High-Voltage Solid Polymer Batteries for Electric Drive Vehicles Citation Details In-Document Search Title: High-Voltage Solid Polymer Batteries for Electric ...

  19. Driving Transformation to Energy Efficient Buildings:Policies...

    OpenEI (Open Energy Information) [EERE & EIA]

    Transformation to Energy Efficient Buildings:Policies and Actions Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Driving Transformation to Energy Efficient...

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

    Energy.gov [DOE] (indexed site)

    Using Partnerships to Drive Demand and Provide Services in Communities Creative Financing Approaches for Residential Energy Efficiency Programs The Dog Days of Summer - ...

  1. Driving Accountability for Program Performance Using Measured Energy Savings (201)

    Office of Energy Efficiency and Renewable Energy (EERE)

    Better Buildings Residential Network Peer Exchange Call Series: Driving Accountability for Program Performance Using Measured Energy Savings (201), November 12, 2015.

  2. Airport Drive, Missouri: Energy Resources | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Airport Drive, Missouri: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 37.1425588, -94.5107824 Show Map Loading map... "minzoom":false,"mappi...

  3. Using Partnerships to Drive Demand and Provide Services in Communities

    Energy.gov [DOE]

    Better Buildings Neighborhood Program Multifamily and Low-Income Peer Exchange Call: Using Partnerships to Drive Demand and Provide Services in Communities, February 2, 2012.

  4. 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 ... Subject: 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ABLATION; EMISSION; ...

  5. Workplace Charging Challenge: Workplace PEV Ride and Drive |...

    Energy.gov [DOE] (indexed site)

    Workplace Charging Challenge: Workplace PEV Ride and Drive Workplace plug-in electric vehicle ... Manage vehicle liability by requesting that car companies administer waivers and send ...

  6. The Drive for Energy Diversity and Sustainability: The Impact...

    Energy.gov [DOE] (indexed site)

    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...

  7. FY2015 Electric Drive Technologies Annual Progress Report (Technical...

    Office of Scientific and Technical Information (OSTI)

    The Electric Drive Technologies research and development (R&D) subprogram within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge ...

  8. NREL Team Investigates Secondary Uses for Electric Drive Vehicle...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Team Investigates Secondary Uses for Electric Drive Vehicle Batteries April 5, 2011 The U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL), industry and ...

  9. Medium- and Heavy-Duty Electric Drive Vehicle Simulation and...

    Energy.gov [DOE] (indexed site)

    More Documents & Publications Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis Medium and Heavy-Duty Vehicle Field Evaluations Battery Pack Requirements and ...

  10. Electric Drive Vehicle Climate Control Load Reduction | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Climate Control Load Reduction Electric Drive Vehicle Climate Control Load Reduction 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review ...

  11. 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 ...

  12. US DRIVE Advanced Combustion and Emission Control Technical Team...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Advanced Combustion and Emission Control Technical Team Roadmap US DRIVE Advanced Combustion and Emission Control Technical Team Roadmap The ACEC focuses on advanced engine and ...

  13. US DRIVE Hydrogen Codes and Standards Technical Team Roadmap...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Hydrogen Codes and Standards Technical Team Roadmap US DRIVE Hydrogen Codes and Standards Technical Team Roadmap The Hydrogen Codes and Standards Tech Team (CSTT) mission is to ...

  14. US DRIVE Grid Interaction Technical Team Roadmap | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Grid Interaction Technical Team Roadmap US DRIVE Grid Interaction Technical Team Roadmap gittroadmapjune2013.pdf (812.23 KB) More Documents & Publications Grid Interaction Tech ...

  15. EV Everywhere Grand Challenge Introduction for Electric Drive...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Presentation given by EERE Assistant Secretary David Danielson at the EV Everywhere Grand Challenge - Electric Drive (Power Electronics and Electric Machines) Workshop on July 24, ...

  16. Accelerating the Electrification of U.S. Drive Trains: Ready...

    Energy.gov [DOE] (indexed site)

    Advanced Batteries Accelerating the Electrification of U.S. Drive Trains: Ready and Affordable Technology Solutions for Domestically Manufactured Advanced Batteries EA-1712: ...

  17. Accelerating the Electrification of U.S. Drive Trains: Ready...

    Energy.gov [DOE] (indexed site)

    Advanced Batteries Accelerating the Electrification of U.S. Drive Trains: Ready and Affordable Technology Solutions for Domestically Manufactured Advanced Batteries FY 2012 ...

  18. High-Voltage Solid Polymer Batteries for Electric Drive Vehicles...

    Energy.gov [DOE] (indexed site)

    More Documents & Publications High-Voltage Solid Polymer Batteries for Electric Drive Vehicles Vehicle Technologies Office Merit Review 2014: High-Voltage Solid Polymer Batteries ...

  19. Perspective: Towards environmentally acceptable criteria for downstream fish passage through mini hydro and irrigation infrastructure in the Lower Mekong River Basin

    SciTech Connect

    Baumgartner, Lee J.; Deng, Zhiqun; Thorncraft, Garry; Boys, Craig A.; Brown, Richard S.; Singhanouvong, Douangkham; Phonekhampeng, Oudom

    2014-02-26

    Tropical rivers have high annual discharges optimal for hydropower and irrigation development. The Mekong River is one of the largest tropical river systems, supporting a unique mega-diverse fish community. Fish are an important commodity in the Mekong, contributing a large proportion of calcium, protein, and essential nutrients to the diet of the local people and providing a critical source of income for rural households. Many of these fish migrate not only upstream and downstream within main-channel habitats but also laterally into highly productive floodplain habitat to both feed and spawn. Most work to date has focused on providing for upstream fish passage, but downstream movement is an equally important process to protect. Expansion of hydropower and irrigation weirs can disrupt downstream migrations and it is important to ensure that passage through regulators or mini hydro systems is not harmful or fatal. Many new infrastructure projects (<6 m head) are proposed for the thousands of tributary streams throughout the Lower Mekong Basin and it is important that designs incorporate the best available science to protect downstream migrants. Recent advances in technology have provided new techniques which could be applied to Mekong fish species to obtain design criteria that can facilitate safe downstream passage. Obtaining and applying this knowledge to new infrastructure projects is essential in order to produce outcomes that are more favorable to local ecosystems and fisheries.

  20. Vehicle Technologies Office Merit Review 2016: Advanced Low-Cost SiC and GaN Wide Bandgap Inverters for Under-the-Hood Electric Vehicle Traction Drives

    Office of Energy Efficiency and Renewable Energy (EERE)

    Presentation given by Wolfspeed at the 2016 DOE Vehicle Technologies Office and Hydrogen and Fuel Cells Program Annual Merit Review and Peer Evaluation Meeting about Electric Drive Systems

  1. Advanced insulated gate bipolar transistor gate drive

    DOEpatents

    Short, James Evans; West, Shawn Michael; Fabean, Robert J.

    2009-08-04

    A gate drive for an insulated gate bipolar transistor (IGBT) includes a control and protection module coupled to a collector terminal of the IGBT, an optical communications module coupled to the control and protection module, a power supply module coupled to the control and protection module and an output power stage module with inputs coupled to the power supply module and the control and protection module, and outputs coupled to a gate terminal and an emitter terminal of the IGBT. The optical communications module is configured to send control signals to the control and protection module. The power supply module is configured to distribute inputted power to the control and protection module. The control and protection module outputs on/off, soft turn-off and/or soft turn-on signals to the output power stage module, which, in turn, supplies a current based on the signal(s) from the control and protection module for charging or discharging an input capacitance of the IGBT.

  2. Base drive and overlap protection circuit

    DOEpatents

    Gritter, David J.

    1983-01-01

    An inverter (34) which provides power to an A. C. machine (28) is controlled by a circuit (36) employing PWM control strategy whereby A. C. power is supplied to the machine at a preselectable frequency and preselectable voltage. This is accomplished by the technique of waveform notching in which the shapes of the notches are varied to determine the average energy content of the overall waveform. Through this arrangement, the operational efficiency of the A. C. machine is optimized. The control circuit includes a microcomputer and memory element which receive various parametric inputs and calculate optimized machine control data signals therefrom. The control data is asynchronously loaded into the inverter through an intermediate buffer (38). A base drive and overlap protection circuit is included to insure that both transistors of a complimentary pair are not conducting at the same time. In its preferred embodiment, the present invention is incorporated within an electric vehicle (10) employing a 144 VDC battery pack (32) and a three-phase induction motor (18).

  3. Modesto Irrigation District- Custom Commercial Energy Efficiency Rebate Program

    Energy.gov [DOE]

    The MPower Custom Rebate Program is available to larger commercial, industrial or agricultural customers that replace existing equipment or systems with high efficiency equipment.  To be eligible...

  4. Modeling Heavy/Medium-Duty Fuel Consumption Based on Drive Cycle Properties

    SciTech Connect

    Wang, Lijuan; Duran, Adam; Gonder, Jeffrey; Kelly, Kenneth

    2015-10-13

    This paper presents multiple methods for predicting heavy/medium-duty vehicle fuel consumption based on driving cycle information. A polynomial model, a black box artificial neural net model, a polynomial neural network model, and a multivariate adaptive regression splines (MARS) model were developed and verified using data collected from chassis testing performed on a parcel delivery diesel truck operating over the Heavy Heavy-Duty Diesel Truck (HHDDT), City Suburban Heavy Vehicle Cycle (CSHVC), New York Composite Cycle (NYCC), and hydraulic hybrid vehicle (HHV) drive cycles. Each model was trained using one of four drive cycles as a training cycle and the other three as testing cycles. By comparing the training and testing results, a representative training cycle was chosen and used to further tune each method. HHDDT as the training cycle gave the best predictive results, because HHDDT contains a variety of drive characteristics, such as high speed, acceleration, idling, and deceleration. Among the four model approaches, MARS gave the best predictive performance, with an average absolute percent error of -1.84% over the four chassis dynamometer drive cycles. To further evaluate the accuracy of the predictive models, the approaches were first applied to real-world data. MARS outperformed the other three approaches, providing an average absolute percent error of -2.2% of four real-world road segments. The MARS model performance was then compared to HHDDT, CSHVC, NYCC, and HHV drive cycles with the performance from Future Automotive System Technology Simulator (FASTSim). The results indicated that the MARS method achieved a comparative predictive performance with FASTSim.

  5. Yield, biomass, and uptake of crop plants irrigated with TNT and RDX contaminated water

    SciTech Connect

    Simini, M.; Checkai, R.T.

    1995-12-31

    Crops grown in site-collected soil were irrigated with water containing 2,4,6-trinitrotoluene (TNT) and cyclotrimethylenetrinitramine (RDX) to simulate field conditions at Cornhusker Army Ammunition Plant, Nebraska. Pots were watered in an environment-controlled greenhouse to field capacity throughout the life-cycle of the crop with 2, 20, and 100 ppb RDX; 2,100, and 800ppb TNT; 100ppb RDX + 800ppb TNT; or uncontaminated water. Yield and biomass of tomato fruit, bush bean fruit, corn stover, and soybean seeds were significantly (p = 0.05) less when irrigated with the RDX + TNT treatment compared to controls. Lettuce leaves and radish root yield and biomass were unaffected by treatment level. Soil loading of RDX and TNT in response to evapotranspiration was greatest for tomato, corn, soybean, bush bean, and least for radish and lettuce. Plant tissue contaminant concentrations will be presented and discussed.

  6. Hyperspectral remote sensing analysis of short rotation woody crops grown with controlled nutrient and irrigation treatments

    SciTech Connect

    Im, Jungho; Jensen, John R.; Coleman, Mark; Nelson, Eric

    2009-08-01

    Abstract - Hyperspectral remote sensing research was conducted to document the biophysical and biochemical characteristics of controlled forest plots subjected to various nutrient and irrigation treatments. The experimental plots were located on the Savannah River Site near Aiken, SC. AISA hyperspectral imagery were analysed using three approaches, including: (1) normalized difference vegetation index based simple linear regression (NSLR), (2) partial least squares regression (PLSR) and (3) machine-learning regression trees (MLRT) to predict the biophysical and biochemical characteristics of the crops (leaf area index, stem biomass and five leaf nutrients concentrations). The calibration and cross-validation results were compared between the three techniques. The PLSR approach generally resulted in good predictive performance. The MLRT approach appeared to be a useful method to predict characteristics in a complex environment (i.e. many tree species and numerous fertilization and/or irrigation treatments) due to its powerful adaptability.

  7. Uptake and physiological response of crop plants irrigated with water containing RDX and TNT

    SciTech Connect

    Simini, M.; Checkai, R.T.

    1995-12-31

    Regulatory agencies have expressed concern about possible bioconcentration of TNT (2,4,6-trinitrotoluene) and RDX (cyclotrimethylenetrinitramine) in food and forage crops irrigated with contaminated groundwater. Field and home-garden crops grown in site-collected soil were irrigated with water containing RDX and TNT to simulate field conditions at Cornhusker Army Ammunition Plant (CAAP), Nebraska. Pots were watered in an environment-controlled greenhouse to field capacity throughout the life-cycle of each crop with 2, 20, and 100 ppb RDX; 2, 100, and 800 ppb TNT; 100 ppb RDX + 800 ppb TNT; or uncontaminated water in response to evapo-transpirative demand. Uptake of RDX in lettuce leaves, corn stover, and alfalfa shoots was positively correlated with treatment level, however, concentrations of RDX in these crops were generally equal to or below soil loading concentrations. RDX was not significantly (p = 0.05) taken up into tomato fruit, bush bean seeds and pods, radish roots, and soybean seeds. TNT was not significantly take up into tissues of any of the crops analyzed in this study. Yield and biomass of tomato fruit, bush bean fruit, corn stover, and soybean seeds were significantly (p = 0.05) less when irrigated with the RDX + TNT treatment compared to controls. Lettuce leaf, radish root, and alfalfa shoot yield and biomass were unaffected by treatment level. For site-specific criteria used in this study, RDX and TNT did not bioconcentrate in edible plant tissues. This is the first controlled study to investigate uptake of RDX and TNT in crops irrigated with water containing explosives concentrations commonly found in contaminated groundwater.

  8. Adjustable Speed Drive Part-Load Efficiency

    SciTech Connect

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  9. Magnetically Coupled Adjustable Speed Motor Drives

    SciTech Connect

    Not Available

    2008-07-01

    This is one in a series of tip sheets to help manufacturers optimize their industrial motor and motor-driven systems.

  10. Hybrid Radiator Cooling System | Argonne National Laboratory

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Radiator Cooling System Technology available for licensing: Hybrid radiator cooling system uses conventional finned air cooling under most driving conditions that would be...

  11. Testing thermal gradient driving force for grain boundary migration using molecular dynamics simulations

    SciTech Connect

    Bai, Xian-Ming; Zhang, Yongfeng; Tonks, Michael R.

    2015-02-01

    Strong thermal gradients in low-thermal-conductivity ceramics may drive extended defects, such as grain boundaries and voids, to migrate in preferential directions. In this work, molecular dynamics simulations are conducted to study thermal gradient driven grain boundary migration and to verify a previously proposed thermal gradient driving force equation, using uranium dioxide as a model system. It is found that a thermal gradient drives grain boundaries to migrate up the gradient and the migration velocity increases under a constant gradient owing to the increase in mobility with temperature. Different grain boundaries migrate at very different rates due to their different intrinsic mobilities. The extracted mobilities from the thermal gradient driven simulations are compared with those calculated from two other well-established methods and good agreement between the three different methods is found, demonstrating that the theoretical equation of the thermal gradient driving force is valid, although a correction of one input parameter should be made. The discrepancy in the grain boundary mobilities between modeling and experiments is also discussed.

  12. Rotor and bearing system for a turbomachine

    DOEpatents

    Lubell, Daniel; Weissert, Dennis

    2006-09-26

    A rotor and bearing system for a turbomachine. The turbomachine includes a drive shaft, an impeller positioned on the drive shaft, and a turbine positioned on the drive shaft proximate to the impeller. The bearing system comprises one gas journal bearing supporting the drive shaft between the impeller and the turbine. The area between the impeller and the turbine is an area of increased heat along the drive shaft in comparison to other locations along the drive shaft. The section of the drive shaft positioned between impeller and the turbine is also a section of the drive shaft that experiences increased stressed and load in the turbomachine. The inventive bearing machine system positions only one radial bearing in this area of increased stress and load.

  13. COAXIAL CONTROL ROD DRIVE MECHANISM FOR NEUTRONIC REACTORS

    DOEpatents

    Fox, R.J.; Oakes, L.C.

    1959-04-14

    A drive mechanism is presented for the control rod or a nuclear reactor. In this device the control rod is coupled to a drive shaft which extends coaxially through the rotor of an electric motor for relative rotation with respect thereto. A gear reduction mehanism is coupled between the rotor and the drive shaft to convert the rotary motion of the motor into linear motion of the shaft with a comparatively great reduction in speed, thereby providing relatively glow linear movement of the shaft and control rod for control purposes.

  14. Scaling of lower hybrid current drive with temperature

    SciTech Connect

    Harvey, R.W. ); McCoy, M.G. ); Ram, A.K.; Bers, A. ); Fuchs, V. )

    1992-06-01

    The 3-D Fokker-Planck/quasilinear code (CQL3D) is used to study the temperature scaling of lower hybrid current drive (LHCD) in the JET and JT-60 experiments. An offset-linear increase of current drive efficiency is obtained as a function of volume average temperature {l angle}T{sub e}{r angle} up to {approximately} 2.5, and reduced rate of efficiency increase is found at higher temperatures. The LHCD results indicate some fast wave/LH current drive synergy in the JET LH/FW experiments; however, code results discussed here show that synergy is not due to TTMP damping of the fast wave.

  15. Driving on "Green" Electrons | Department of Energy

    Energy.gov [DOE] (indexed site)

    able to install a small solar system. Some vehicle manufacturers have even partnered with solar panel companies to offer discounts on arrays. If producing your own power isn't...

  16. Gas turbine CHP leads Italy`s energy drive

    SciTech Connect

    Jeffs, E.

    1995-11-01

    When Italy abandoned its nuclear power program, it was the signal for the electricity market to open to industrial CHP and independent power production. This move raised energy efficiency and cut pollution, as a prelude to the privatization of the electric utility system. The Privatization of ENEL, the National Electricity Authority, is expected to happen next year, but not before a significant component of independent power generation is already in place. ENEL itself was only created in 1963 and some of the former power companies have reemerged as the leading IPP`s. Although combined cycle and IPP capacity is only 5000 MW, it is expected to increase to 15,000 MW by the year 2000. In abandoning nuclear power, Italy may have given up on an unquestionably clean thermal energy source, but an intensive drive into private power with combined cycle, repowering, and industrial CHP schemes is achieving some worthwhile improvements in energy efficiency, and a cleaner environment than what went before. 3 figs., 1 tab.

  17. Magnetically coupled system for mixing

    DOEpatents

    Miller, III, Harlan; Meichel, George; Legere, Edward; Malkiel, Edwin; Woods, Robert Paul; Ashley, Oliver; Katz, Joseph; Ward, Jason; Petersen, Paul

    2015-09-22

    The invention provides a mixing system comprising a magnetically coupled drive system and a foil for cultivating algae, or cyanobacteria, in an open or enclosed vessel. The invention provides effective mixing, low energy usage, low capital expenditure, and ease of drive system component maintenance while maintaining the integrity of a sealed mixing vessel.

  18. Magnetically coupled system for mixing

    SciTech Connect

    Miller, III, Harlan; Meichel, George; Legere, Edward; Malkiel, Edwin; Woods, Robert Paul; Ashley, Oliver; Katz, Joseph; Ward, Jason; Petersen, Paul

    2014-04-01

    The invention provides a mixing system comprising a magnetically coupled drive system and a foil for cultivating algae, or cyanobacteria, in an open or enclosed vessel. The invention provides effective mixing, low energy usage, low capital expenditure, and ease of drive system component maintenance while maintaining the integrity of a sealed mixing vessel.

  19. A comparative analysis of the impacts of climate change and irrigation on land surface and subsurface hydrology in the North China Plain

    SciTech Connect

    Leng, Guoyong; Tang, Qiuhong; Huang, Maoyi; Leung, Lai-Yung R.

    2015-02-01

    The Community Land Model 4.0 (CLM4) was used to investigate and compare the effects of climate change and irrigation on terrestrial water cycle. Three climate change scenarios and one irrigation scenario (IRRIG) were simulated in the North China Plain (NCP), which is one of the most vulnerable regions to climate change and human perturbations in China. The climate change scenarios consist of (1) HOT (i.e. temperature increase by 2oC); (2) HOTWET (same with HOT but with an increase of precipitation by 15%); (3) HOTDRY (same with HOT but with a decrease of precipitation by 15%). In the IRRIG scenario, the irrigation scheme was calibrated to simulate irrigation amounts that match the actual irrigation amounts and irrigation was divided between surface water and groundwater withdrawals based on census data. Our results show that the impacts of climate change were more widespread while those of irrigation were concentrated only over the agricultural regions. Specifically, the mean water table depth was simulated to decline persistently by over 1 m annually due to groundwater exploitation during the period of 1980-2000, while much smaller effects were induced by climate change. Although irrigation has comparable effects on surface fluxes and surface soil moisture as climate change, it has much greater effects on water table depth and groundwater storage. Moreover, irrigation has much larger effects on the top layer soil moisture whereas increase in precipitation associated with climate change exerts more influence on lower layer soil moisture. This study emphasizes the need to accurately account for irrigation impacts in adapting to climate change.

  20. Energy Upgrade California Drives Demand From Behind the Wheel...

    Energy Saver

    the 24-foot trailer has been hitting the road to drive demand for home energy upgrades ... of direct mail, program newsletters, road signs, and cross-promotional efforts among ...

  1. EV Everywhere Electric Drive Workshop: Preliminary Target-Setting Framework

    Energy.gov [DOE]

    Presentation given by Vehicle Technologies Office analyst Jake Ward 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.

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

    OpenEI (Open Energy Information) [EERE & EIA]

    license agreement with Columbia Power Technologies to jointly develop a direct drive wave energy conversion device Designed to be anchored 2 5 miles off the Oregon coast in 130...

  3. Climate Control Load Reduction Strategies for Electric Drive...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... Drive Cycle Simulations The vehicle simulation tool Autonomie was used to calculate ... The Focus Electric uses a 23-kWh capacity lithium-ion battery pack. The battery utilization ...

  4. Driving Research in Electric Machines |GE Global Research

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Driving Research in Electric Machines Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to...

  5. EV Everywhere Grand Challenge Introduction for Electric Drive Workshop

    Energy.gov [DOE]

    Presentation given by EERE Assistant Secretary David 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.

  6. High-Voltage Solid Polymer Batteries for Electric Drive Vehicles...

    Office of Scientific and Technical Information (OSTI)

    Title: High-Voltage Solid Polymer Batteries for Electric Drive Vehicles The purpose of this project was for Seeo to develop a high energy lithium based technology with targets of ...

  7. Watch Energy Secretary Moniz Test Drive the Toyota Mirai

    Office of Energy Efficiency and Renewable Energy (EERE)

    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.

  8. American Red Cross Blood Drive Hanford Health and Safety Exposition

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Red Cross Blood Drive Hanford Health and Safety Exposition 6600 Burden Blvd. - TRAC Center ... further instructions. redcrossblood.org I 1-800-RED CROSS (1-800 - 733-2767) ......

  9. EM modeling of RF drive in DTL tank 4

    SciTech Connect

    Kurennoy, Sergey S.

    2012-06-19

    A 3-D MicroWave Studio model for the RF drive in the LANSCE DTL tank 4 has been built. Both eigensolver and time-domain modeling are used to evaluate maximal fields in the drive module and RF coupling. The LANSCE DTL tank 4 has recently been experiencing RF problems, which may or may not be related to its replaced RF coupler. This situation stimulated a request by Dan Rees to provide EM modeling of the RF drive in the DTL tank 4 (T4). Jim O'Hara provided a CAD model that was imported into the CST Microwave Studio (MWS) and after some modifications became a part of a simplified MWS model of the T4 RF drive. This technical note describes the model and presents simulation results.

  10. Energy Department Announces $60 Million to Drive Affordable,...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Million to Drive Affordable, Efficient Solar Power Energy Department Announces 60 Million to ... "The tremendous growth in the U.S. solar industry over the past few years is helping ...

  11. Energy Department Announces $60 Million to Drive Affordable,...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Million to Drive Affordable, Efficient Solar Power Energy Department Announces 60 Million to ... U.S. solar workforce. "The tremendous growth in the U.S. solar industry over the ...

  12. Ride and Drive Evaluation Results | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Ride and Drive Evaluation Results 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: U.S. Department of Energy 2004deerhowden.pdf (110.89 KB) More Documents & ...

  13. Vehicle Technologies Office Merit Review 2016: Electric Drive...

    Energy.gov [DOE] (indexed site)

    More Documents & Publications Vehicle Technologies Office Merit Review 2015: Electric Drive Inverter R&D Inverter R&D Vehicle Technologies Office Merit Review 2014: Inverter R&D

  14. Medium- and Heavy-Duty Electric Drive Vehicle Simulation and...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis PI: Jeff Gonder (NREL) Team: Laurie Ramroth and Aaron Brooker May 15, 2012 Project ID : VSS043 This ...

  15. Medium- and Heavy-Duty Electric Drive Vehicle Simulation and...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis DOE VTP Annual Merit Review PI: Robb A. Barnitt Organization: NREL May 10, 2011 Project ID: VSS043 This ...

  16. #LabChat Recap: Innovations Driving More Efficient Vehicles ...

    Energy.gov [DOE] (indexed site)

    Addthis Related Articles LabChat Recap: The Future of Biofuels LabChat Recap: What is Dark Energy What improvements are making vehicles drive farther? Learn about the ...

  17. #LabChat: Innovations Driving More Efficient Vehicles, Dec. 13...

    Energy.gov [DOE] (indexed site)

    ... Related Articles LabChat Recap: Innovations Driving More Efficient Vehicles What is dark energy? Learn about the force we think accounts for three-quarters of the mass and energy ...

  18. Approach to Developing Predictive Capability for Hohlraum Drive and Symmetry

    SciTech Connect

    Jones, O. S.

    2015-07-22

    Currently, we do not have the ability to predict the hohlraum drive and symmetry without requiring ad hoc adjustments to physics models. This document describes a plan for code improvements and focused physics validation experiments.

  19. Edge Temperature Gradient as Intrinsic Rotation Drive in Alcator...

    Office of Scientific and Technical Information (OSTI)

    Title: Edge Temperature Gradient as Intrinsic Rotation Drive in Alcator C -Mod Tokamak Plasmas Authors: Rice, J. E. ; Hughes, J. W. ; Diamond, P. H. ; Kosuga, Y. ; Podpaly, Y. A. ; ...

  20. High-Voltage Solid Polymer Batteries for Electric Drive Vehicles...

    Office of Scientific and Technical Information (OSTI)

    Voltage Solid Polymer Batteries for Electric Drive Vehicles Eitouni, Hany; Yang, Jin; Pratt, Russell; Wang, Xiao; Grape, Ulrik The purpose of this project was for Seeo to develop a...

  1. Better Buildings Accelerators: Driving Uptake of Home Energy Information

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    and Upgrade Programs Nationwide | Department of Energy Accelerators: Driving Uptake of Home Energy Information and Upgrade Programs Nationwide Better Buildings Accelerators: Driving Uptake of Home Energy Information and Upgrade Programs Nationwide March 14, 2016 - 2:18pm Addthis The U.S. Department of Energy's Better Buildings Home Upgrade Program and Home Energy Information Accelerators work with partners across the nation and are making important progress in lowering the costs of energy

  2. Energy Department Announces $60 Million to Drive Affordable, Efficient

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Solar Power | Department of Energy 60 Million to Drive Affordable, Efficient Solar Power Energy Department Announces $60 Million to Drive Affordable, Efficient Solar Power October 22, 2013 - 11:45am Addthis News Media Contact (202) 586-4940 WASHINGTON - Building on President Obama's broad-based plan to cut carbon pollution and support clean energy innovation across the country, Energy Secretary Moniz announced today about $60 million to support innovative solar energy research and

  3. Energy Department Investment Drives Clean Energy Innovation at Federal

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Facilities | Department of Energy Investment Drives Clean Energy Innovation at Federal Facilities Energy Department Investment Drives Clean Energy Innovation at Federal Facilities January 27, 2016 - 1:30pm Addthis The U.S. Department of Energy (DOE) today announced $2.85 million in funding for four projects that will advance the development of renewable energy technologies at facilities across the federal government. As the nation's largest single user of energy, the federal government is

  4. Energy Upgrade California Drives Demand From Behind the Wheel | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Upgrade California Drives Demand From Behind the Wheel Energy Upgrade California Drives Demand From Behind the Wheel Photo of a trailer with the Energy Upgrade California logo and graphics painted on the side. With a goal of "energy efficiency or bust," the California Center for Sustainable Energy (CCSE) recently completed a statewide tour of its ongoing Energy Upgrade California Roadshow. The mobile exhibit made 11 stops in nine cities across California during November

  5. Buying and Driving Fuel Efficient and Alternative Fuel Vehicles |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Electricity & Fuel » Vehicles & Fuels » Buying and Driving Fuel Efficient and Alternative Fuel Vehicles Buying and Driving Fuel Efficient and Alternative Fuel Vehicles Electric vehicles are just one option for buyers interested in fuel efficient or alternative fuel vehicles. | Photo courtesy of Dennis Schroeder, NREL. Electric vehicles are just one option for buyers interested in fuel efficient or alternative fuel vehicles. | Photo courtesy of Dennis Schroeder,

  6. Energy Department Announces $60 Million to Drive Affordable, Efficient

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Solar Power | Department of Energy Department Announces $60 Million to Drive Affordable, Efficient Solar Power Energy Department Announces $60 Million to Drive Affordable, Efficient Solar Power October 22, 2013 - 12:00am Addthis Building on President Obama's broad-based plan to cut carbon pollution and support clean energy innovation across the country, Energy Secretary Moniz announced today about $60 million to support innovative solar energy research and development. As part of the

  7. Advanced Electric Drive Vehicles … A Comprehensive Education, Training,

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    and Outreach Program | Department of Energy Vehicles … A Comprehensive Education, Training, and Outreach Program Advanced Electric Drive Vehicles … A Comprehensive Education, Training, and Outreach Program 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting arravt034_ti_ferdowsi_2012_o.pdf (1.02 MB) More Documents & Publications Advanced Electric Drive Vehicles … A Comprehensive Education, Training, and Outreach

  8. Electrical Motor Drive Apparatus and Method - Energy Innovation Portal

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Vehicles and Fuels Vehicles and Fuels Industrial Technologies Industrial Technologies Find More Like This Return to Search Electrical Motor Drive Apparatus and Method Oak Ridge National Laboratory Contact ORNL About This Technology Technology Marketing SummaryThis invention discloses an electrical motor drive topology that can significantly reduce the inverter dc bus ripple currents and thus the requirement of the dc bus capacitance. It enables the inverter to cost-effectively operate in

  9. Driving Progress Through the EV Everywhere Utility Partnership | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Driving Progress Through the EV Everywhere Utility Partnership Driving Progress Through the EV Everywhere Utility Partnership December 14, 2015 - 4:37pm Addthis Assistant Secretary Danielson spoke about the importance of stakeholder collaboration to realize the goals of EV Everywhere. | Photo courtesy of Ameren Corporation Assistant Secretary Danielson spoke about the importance of stakeholder collaboration to realize the goals of EV Everywhere. | Photo courtesy of Ameren

  10. High Efficiency Driving Electronics for General Illumination LED Luminaires

    Office of Scientific and Technical Information (OSTI)

    (Technical Report) | SciTech Connect High Efficiency Driving Electronics for General Illumination LED Luminaires Citation Details In-Document Search Title: High Efficiency Driving Electronics for General Illumination LED Luminaires New generation of standalone LED driver platforms developed, which are more efficient These LED Drivers are more efficient (≥90%), smaller in size ( 0.15 in3/watt), lower in cost ( 12 cents/watt in high volumes in millions of units). And these products are very

  11. Energy Department Driving Clean Energy Development and Sustainable

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Solutions in 16 States | Department of Energy Driving Clean Energy Development and Sustainable Solutions in 16 States Energy Department Driving Clean Energy Development and Sustainable Solutions in 16 States August 22, 2016 - 5:00pm Addthis The Energy Department today awarded $5 million to 16 states to advance innovative approaches for clean energy development that will reduce energy bills for American families and businesses, protect the environment by reducing carbon emissions, and

  12. Microsoft PowerPoint - 06 Crawley Drive for Net Zero Energy Commercial...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    6 Crawley Drive for Net Zero Energy Commercial Buildings Microsoft PowerPoint - 06 Crawley Drive for Net Zero Energy Commercial Buildings Microsoft PowerPoint - 06 Crawley Drive ...

  13. Oak Ridge National Laboratory Annual Progress Report for the Electric Drive Technologies Program

    SciTech Connect

    Ozpineci, Burak

    2015-10-01

    The US Department of Energy (DOE) announced in May 2011 a new cooperative research effort comprising DOE, the US Council for Automotive Research (composed of automakers Ford Motor Company, General Motors Company, and Chrysler Group), Tesla Motors, and representatives of the electric utility and petroleum industries. Known as U.S. DRIVE (Driving Research and Innovation for Vehicle efficiency and Energy sustainability), it represents DOE’s commitment to developing public–private partnerships to fund high-risk–high-reward research into advanced automotive technologies. The new partnership replaces and builds upon the partnership known as FreedomCAR (derived from “Freedom” and “Cooperative Automotive Research”) that ran from 2002 through 2010 and the Partnership for a New Generation of Vehicles initiative that ran from 1993 through 2001. Oak Ridge National Laboratory’s (ORNL’s) Electric Drive Technologies (EDT) subprogram within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies now under development. Research is focused on developing revolutionary new power electronics (PE), electric motor (EM), and traction drive system (TDS) technologies that will leapfrog current on-the-road technologies, leading to lower cost and better efficiency in transforming battery energy to useful work. The research and development (R&D) is also aimed at achieving a greater understanding of and improvements in the way the various new components of tomorrow’s automobiles will function as a unified system to improve fuel efficiency through research in more efficient TDSs. In supporting the development of advanced vehicle propulsion systems, the EDT subprogram fosters the development of technologies that will significantly improve efficiency, costs, and fuel economy

  14. Effects of Irrigating with Treated Oil and Gas Product Water on Crop Biomass and Soil Permeability

    SciTech Connect

    Terry Brown; Jeffrey Morris; Patrick Richards; Joel Mason

    2010-09-30

    Demonstrating effective treatment technologies and beneficial uses for oil and gas produced water is essential for producers who must meet environmental standards and deal with high costs associated with produced water management. Proven, effective produced-water treatment technologies coupled with comprehensive data regarding blending ratios for productive long-term irrigation will improve the state-of-knowledge surrounding produced-water management. Effective produced-water management scenarios such as cost-effective treatment and irrigation will discourage discharge practices that result in legal battles between stakeholder entities. The goal of this work is to determine the optimal blending ratio required for irrigating crops with CBNG and conventional oil and gas produced water treated by ion exchange (IX), reverse osmosis (RO), or electro-dialysis reversal (EDR) in order to maintain the long term physical integrity of soils and to achieve normal crop production. The soils treated with CBNG produced water were characterized with significantly lower SAR values compared to those impacted with conventional oil and gas produced water. The CBNG produced water treated with RO at the 100% treatment level was significantly different from the untreated produced water, while the 25%, 50% and 75% water treatment levels were not significantly different from the untreated water. Conventional oil and gas produced water treated with EDR and RO showed comparable SAR results for the water treatment technologies. There was no significant difference between the 100% treated produced water and the control (river water). The EDR water treatment resulted with differences at each level of treatment, which were similar to RO treated conventional oil and gas water. The 100% treated water had SAR values significantly lower than the 75% and 50% treatments, which were similar (not significantly different). The results of the greenhouse irrigation study found the differences in biomass

  15. Is it Cost-Effective to Replace Old Eddy-Current Drives? - Motor Tip Sheet #12

    SciTech Connect

    2008-07-01

    New pulse-width-modulated (PWM) adjustable speed drives (ASDs) may be cost-effective replacements for aging or maintenance-intensive eddy-current drives.

  16. U.S. First Responder Safety Training for Advanced Electric Drive...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    First Responder Safety Training for Advanced Electric Drive Vehicle Presentation U.S. First Responder Safety Training for Advanced Electric Drive Vehicle Presentation 2010 DOE...

  17. SunLine Test Drives Hydrogen Bus: Hydrogen Fuel Cell & Infrastructure...

    Energy Saver

    Test Drives Hydrogen Bus: Hydrogen Fuel Cell & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects Fact Sheet. SunLine Test Drives Hydrogen Bus: Hydrogen Fuel ...

  18. Observation of Ion-Cyclotron-Frequency Mode-Conversion Flow Drive...

    Office of Scientific and Technical Information (OSTI)

    Mode-Conversion Flow Drive in Tokamak Plasmas Citation Details In-Document Search Title: Observation of Ion-Cyclotron-Frequency Mode-Conversion Flow Drive in Tokamak ...

  19. Using Community-Based Social Marketing to Drive Demand for Energy...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Using Community-Based Social Marketing to Drive Demand for Energy Efficiency Using Community-Based Social Marketing to Drive Demand for Energy Efficiency Slides presented in the ...

  20. Visualization of Solution Gas Drive in Viscous Oil, SUPRI TR-126

    SciTech Connect

    George, D.S.; Kovscek, A.R.

    2001-07-23

    Several experimental studies of solution gas drive are available in this report. Almost all of the studies have used light oil. Solution gas drive behavior, especially in heavy oil reservoirs, is poorly understood. Experiments were performed in which pore-scale solution gas drive phenomena were viewed in water/carbon dioxide and viscous oil/carbon dioxide systems. A new pressure vessel was designed and constructed to house silicon-wafer micromodels that previously operated at low (<3 atm) pressure. The new apparatus is used for the visual studies. Several interesting phenomena were viewed. The repeated nucleation of gas bubbles was observed at a gas-wet site occupied by dirt. Interestingly, the dissolution of a gas bubble into the liquid phase was previously recorded at the same nucleation site. Gas bubbles in both systems grew to span one ore more pore bodies before mobilization. Liquid viscosity affected the ease with which gas bubbles coalesced. More viscous solutions result in slower rates of coalescence. The transport of solid particles on gas-liquid interfaces was also observed.