National Library of Energy BETA

Sample records for real-world driving environments

  1. Medium Truck Duty Cycle Data from Real-World Driving Environments: Project Interim Report

    SciTech Connect (OSTI)

    Franzese, Oscar; Lascurain, Mary Beth; Capps, Gary J

    2011-01-01

    Since the early part of the 20th century, the US trucking industry has provided a safe and economical means of moving commodities across the country. At the present time, nearly 80% of the US domestic freight movement involves the use of trucks. The US Department of Energy (DOE) is spearheading a number of research efforts to improve heavy vehicle fuel efficiencies. This includes research in engine technologies (including hybrid and fuel cell technologies), lightweight materials, advanced fuels, and parasitic loss reductions. In addition, DOE is developing advanced tools and models to support heavy vehicle truck research, and is leading the 21st Century Truck Partnership whose stretch goals involve a reduction by 50% of the fuel consumption of heavy vehicles on a ton-mile basis. This Medium Truck Duty Cycle (MTDC) Project is a critical element in DOE s vision for improved heavy vehicle energy efficiency and is unique in that there is no other national database of characteristic duty cycles for medium trucks. It involves the collection of real-world data for various situational characteristics (rural/urban, freeway/arterial, congested/free-flowing, good/bad weather, etc.) and looks at the unique nature of medium trucks drive cycles (stop-and-go delivery, power takeoff, idle time, short-radius trips), to provide a rich source of data that can contribute to the development of new tools for fuel efficiency and modeling, provide DOE a sound basis upon which to make technology investment decisions, and provide a national archive of real-world-based medium-truck operational data to support heavy vehicle energy efficiency research. The MTDC project involves a two-part field operational test (FOT). For the Part-1 FOT, three vehicles, each from two vocations (urban transit and dry-box delivery) were instrumented for one year of data collection. The Part-2 FOT will involve the towing/recovery and utility vocations. The vehicles participating in the MTDC project are doing so

  2. Medium Truck Duty Cycle Data from Real-World Driving Environments: Final Report

    SciTech Connect (OSTI)

    Lascurain, Mary Beth; Franzese, Oscar; Capps, Gary J; Siekmann, Adam; Thomas, Neil; LaClair, Tim J; Barker, Alan M; Knee, Helmut E

    2012-11-01

    Since the early part of the 20th century, the US trucking industry has provided a safe and economical means of moving commodities across the country. At present, nearly 80% of US domestic freight movement involves the use of trucks. The US Department of Energy (DOE) is spearheading a number of research efforts to improve heavy vehicle fuel efficiencies. This includes research in engine technologies (including hybrid and fuel cell technologies), lightweight materials, advanced fuels, and parasitic loss reductions. In addition, DOE is developing advanced tools and models to support heavy vehicle research and is leading the 21st Century Truck Partnership and the SuperTruck development effort. Both of these efforts have the common goal of decreasing the fuel consumption of heavy vehicles. In the case of SuperTruck, a goal of improving the overall freight efficiency of a combination tractor-trailer has been established. This Medium Truck Duty Cycle (MTDC) project is a critical element in DOE s vision for improved heavy vehicle energy efficiency; it is unique in that there is no other existing national database of characteristic duty cycles for medium trucks based on collecting data from Class 6 and 7 vehicles. It involves the collection of real-world data on medium trucks for various situational characteristics (e.g., rural/urban, freeway/arterial, congested/free-flowing, good/bad weather) and looks at the unique nature of medium trucks drive cycles (stop-and-go delivery, power takeoff, idle time, short-radius trips). This research provides a rich source of data that can contribute to the development of new tools for FE and modeling, provide DOE a sound basis upon which to make technology investment decisions, and provide a national archive of real-world-based medium-truck operational data to support energy efficiency research. The MTDC project involved a two-part field operational test (FOT). For the Part-1 FOT, three vehicles each from two vocations (urban transit and

  3. Comparison of Battery Life Across Real-World Automotive Drive-Cycles (Presentation)

    SciTech Connect (OSTI)

    Smith, K.; Earleywine, M.; Wood, E.; Pesaran, A.

    2011-11-01

    Laboratories run around-the-clock aging tests to try to understand as quickly as possible how long new Li-ion battery designs will last under certain duty cycles. These tests may include factors such as duty cycles, climate, battery power profiles, and battery stress statistics. Such tests are generally accelerated and do not consider possible dwell time at high temperatures and states-of-charge. Battery life-predictive models provide guidance as to how long Li-ion batteries may last under real-world electric-drive vehicle applications. Worst-case aging scenarios are extracted from hundreds of real-world duty cycles developed from vehicle travel surveys. Vehicles examined included PHEV10 and PHEV40 EDVs under fixed (28 degrees C), limited cooling (forced ambient temperature), and aggressive cooling (20 degrees C chilled liquid) scenarios using either nightly charging or opportunity charging. The results show that battery life expectancy is 7.8 - 13.2 years for the PHEV10 using a nightly charge in Phoenix, AZ (hot climate), and that the 'aggressive' cooling scenario can extend battery life by 1-3 years, while the 'limited' cooling scenario shortens battery life by 1-2 years. Frequent (opportunity) charging can reduce battery life by 1 year for the PHEV10, while frequent charging can extend battery life by one-half year.

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

    SciTech Connect (OSTI)

    Not Available

    2013-04-01

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

  5. Suitability of Synthetic Driving Profiles from Traffic Micro-Simulation for Real-World Energy Analysis: Preprint

    SciTech Connect (OSTI)

    Hou, Yunfei; Wood, Eric; Burton, Evan; Gonder, Jeffrey

    2015-10-14

    A shift towards increased levels of driving automation is generally expected to result in improved safety and traffic congestion outcomes. However, little empirical data exists to estimate the impact that automated driving could have on energy consumption and greenhouse gas emissions. In the absence of empirical data on differences between drive cycles from present day vehicles (primarily operated by humans) and future vehicles (partially or fully operated by computers) one approach is to model both situations over identical traffic conditions. Such an exercise requires traffic micro-simulation to not only accurately model vehicle operation under high levels of automation, but also (and potentially more challenging) vehicle operation under present day human drivers. This work seeks to quantify the ability of a commercial traffic micro-simulation program to accurately model real-world drive cycles in vehicles operated primarily by humans in terms of driving speed, acceleration, and simulated fuel economy. Synthetic profiles from models of freeway and arterial facilities near Atlanta, Georgia, are compared to empirical data collected from real-world drivers on the same facilities. Empirical and synthetic drive cycles are then simulated in a powertrain efficiency model to enable comparison on the basis of fuel economy. Synthetic profiles from traffic micro-simulation were found to exhibit low levels of transient behavior relative to the empirical data. Even with these differences, the synthetic and empirical data in this study agree well in terms of driving speed and simulated fuel economy. The differences in transient behavior between simulated and empirical data suggest that larger stochastic contributions in traffic micro-simulation (relative to those present in the traffic micro-simulation tool used in this study) are required to fully capture the arbitrary elements of human driving. Interestingly, the lack of stochastic contributions from models of human drivers

  6. Evaluating the Impact of Road Grade on Simulated Commercial Vehicle Fuel Economy Using Real-World Drive Cycles

    SciTech Connect (OSTI)

    Lopp, Sean; Wood, Eric; Duran, Adam

    2015-10-13

    Commercial vehicle fuel economy is known to vary significantly with both positive and negative road grade. Medium- and heavy-duty vehicles operating at highway speeds require incrementally larger amounts of energy to pull heavy payloads up inclines as road grade increases. Non-hybrid vehicles are then unable to recapture energy on descent and lose energy through friction braking. While the on-road effects of road grade are well understood, the majority of standard commercial vehicle drive cycles feature no climb or descent requirements. Additionally, existing literature offers a limited number of sources that attempt to estimate the on-road energy implications of road grade in the medium- and heavy-duty space. This study uses real-world commercial vehicle drive cycles from the National Renewable Energy Laboratory's Fleet DNA database to simulate the effects of road grade on fuel economy across a range of vocations, operating conditions, and locations. Drive-cycles are matched with vocation-specific vehicle models and simulated with and without grade. Fuel use due to grade is presented, and variation in fuel consumption due to drive cycle and vehicle characteristics is explored through graphical and statistical comparison. The results of this study suggest that road grade accounts for 1%-9% of fuel use in commercial vehicles on average and up to 40% on select routes.

  7. Contribution of Road Grade to the Energy Use of Modern Automobiles Across Large Datasets of Real-World Drive Cycles: Preprint

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

    Contribution of Road Grade to the Energy Use of Modern Automobiles Across Large Datasets of Real-World Drive Cycles Preprint Eric Wood, Evan Burton, Adam Duran, and Jeff Gonder To be presented at the SAE World Congress 2014 Detroit, Michigan April 8-10, 2014 Conference Paper NREL/CP-5400-61108 January 2014 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (Alliance), a contractor of the US Government under Contract No. DE-AC36-08GO28308.

  8. Contribution of Road Grade to the Energy Use of Modern Automobiles Across Large Datasets of Real-World Drive Cycles: Preprint

    SciTech Connect (OSTI)

    Wood, E.; Burton, E.; Duran, A.; Gonder, J.

    2014-01-01

    Understanding the real-world power demand of modern automobiles is of critical importance to engineers using modeling and simulation to inform the intelligent design of increasingly efficient powertrains. Increased use of global positioning system (GPS) devices has made large scale data collection of vehicle speed (and associated power demand) a reality. While the availability of real-world GPS data has improved the industry's understanding of in-use vehicle power demand, relatively little attention has been paid to the incremental power requirements imposed by road grade. This analysis quantifies the incremental efficiency impacts of real-world road grade by appending high fidelity elevation profiles to GPS speed traces and performing a large simulation study. Employing a large real-world dataset from the National Renewable Energy Laboratory's Transportation Secure Data Center, vehicle powertrain simulations are performed with and without road grade under five vehicle models. Aggregate results of this study suggest that road grade could be responsible for 1% to 3% of fuel use in light-duty automobiles.

  9. Student's algorithm solves real-world problem

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

    Student's algorithm solves real-world problem Supercomputing Challenge: student's algorithm solves real-world problem Students learn how to use powerful computers to analyze, model, and solve real-world problems. April 3, 2012 Jordon Medlock of Albuquerque's Manzano High School won the 2012 Lab-sponsored Supercomputing Challenge Jordon Medlock of Albuquerque's Manzano High School won the 2012 Lab-sponsored Supercomputing Challenge by creating a computer algorithm that automates the process of

  10. HEAVY-DUTY TRUCK EMISSIONS AND FUEL CONSUMPTION SIMULATING REAL-WORLD

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

    DRIVING IN LABORATORY CONDITIONS | Department of Energy HEAVY-DUTY TRUCK EMISSIONS AND FUEL CONSUMPTION SIMULATING REAL-WORLD DRIVING IN LABORATORY CONDITIONS HEAVY-DUTY TRUCK EMISSIONS AND FUEL CONSUMPTION SIMULATING REAL-WORLD DRIVING IN LABORATORY CONDITIONS 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005_deer_erkkila.pdf (398.95 KB) More Documents & Publications Evaluating Exhaust Emission Performance of Urban Buses Using Transient Heavy-Duty

  11. U.S. Department of Energy Launches Real World Design Challenge | Department

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

    of Energy Real World Design Challenge U.S. Department of Energy Launches Real World Design Challenge October 20, 2008 - 4:14pm Addthis Goal of New Competition Is to Inspire High School Students to Study Engineering WASHINGTON, DC - The U.S. Department of Energy (DOE) has launched the Real World Design Challenge (RWDC), a new annual competition that provides high school students with the opportunity to work on real world engineering challenges in a collaborative environment. The purpose of

  12. Competition Provides Students with Real-World Engineering Experience...

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

    Competition Provides Students with Real-World Engineering Experience Competition Provides Students with Real-World Engineering Experience April 10, 2013 - 12:00am Addthis Fifteen...

  13. Comparison of Real World Energy Consumption to Models and DOE...

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

    Then, the study determines whether real world energy consumption differed substantially ... Comparison of Real World Energy Consumption to Models and Department of Energy Test ...

  14. Real-World Hydrogen Technology Validation: Preprint

    SciTech Connect (OSTI)

    Sprik, S.; Kurtz, J.; Wipke, K.; Ramsden, T.; Ainscough, C.; Eudy, L.; Saur, G.

    2012-03-01

    The Department of Energy, the Department of Defense's Defense Logistics Agency, and the Department of Transportation's Federal Transit Administration have funded learning demonstrations and early market deployments to provide insight into applications of hydrogen technologies on the road, in the warehouse, and as stationary power. NREL's analyses validate the technology in real-world applications, reveal the status of the technology, and facilitate the development of hydrogen and fuel cell technologies, manufacturing, and operations. This paper presents the maintenance, safety, and operation data of fuel cells in multiple applications with the reported incidents, near misses, and frequencies. NREL has analyzed records of more than 225,000 kilograms of hydrogen that have been dispensed through more than 108,000 hydrogen fills with an excellent safety record.

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

    Broader source: Energy.gov [DOE]

    2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

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

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

    for Improved Cold Temperature Thermal Modeling and Strategy Development Vehicle Technologies Office Merit Review 2014: Internal Combustion Engine Energy Retention (ICEER)

  17. GATEWAY Demonstrations: Exploring SSL Product Performance in the Real World

    SciTech Connect (OSTI)

    2013-10-01

    Fact sheet that outlines DOE's GATEWAY technology demonstration program, which evaluates high-performance SSL products for general illumination in a variety of real-world exterior and interior applications.

  18. Simulated Real-World Energy Impacts of a Thermally Sensitive Powertrain Considering Viscous Losses and Enrichment: Preprint

    SciTech Connect (OSTI)

    Wood, E.; Gonder, J.; Lopp, S.; Jehlik, F.

    2015-02-01

    It is widely understood that cold ambient temperatures increase vehicle fuel consumption due to heat transfer losses, increased friction (increased viscosity lubricants), and enrichment strategies (accelerated catalyst heating). However, relatively little effort has been dedicated to thoroughly quantifying these impacts across a large set of real world drive cycle data and ambient conditions. This work leverages experimental dynamometer vehicle data collected under various drive cycles and ambient conditions to develop a simplified modeling framework for quantifying thermal effects on vehicle energy consumption. These models are applied over a wide array of real-world usage profiles and typical meteorological data to develop estimates of in-use fuel economy. The paper concludes with a discussion of how this integrated testing/modeling approach may be applied to quantify real-world, off-cycle fuel economy benefits of various technologies.

  19. Real World Demonstration of a New American Low-Head Hydropower...

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

    Real World Demonstration of a New American Low-Head Hydropower Unit Real World Demonstration of a New American Low-Head Hydropower Unit Real World Demonstration of a New American ...

  20. Comparing Climate Models to Real World Shows Differences in Precipitation

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

    Intensity | U.S. DOE Office of Science (SC) Comparing Climate Models to Real World Shows Differences in Precipitation Intensity 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

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

    SciTech Connect (OSTI)

    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

  2. Measuring "Real World" Heavy-Duty Diesel Emissions with a Mobile...

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

    "Real World" Heavy-Duty Diesel Emissions with a Mobile Lab Measuring "Real World" Heavy-Duty Diesel Emissions with a Mobile Lab 2002 DEER Conference Presentation: University of ...

  3. Real-World Greenhouse Gas Emissions from a MY2010 Diesel Truck...

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

    Real-World Greenhouse Gas Emissions from a MY2010 Diesel Truck Traveling Across the Continental United States Real-World Greenhouse Gas Emissions from a MY2010 Diesel Truck ...

  4. Comparison of Real World Energy Consumption to Models and DOE Test

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

    Procedures | Department of Energy Comparison of Real World Energy Consumption to Models and DOE Test Procedures Comparison of Real World Energy Consumption to Models and DOE Test Procedures This study investigates the real-world energy performance of appliances and equipment as it compares with models and test procedures. The study looked to determine whether DOE and industry test procedures actually replicate real world conditions, whether performance degrades over time, and whether

  5. Real-World Greenhouse Gas Emissions from a MY2010 Diesel Truck Traveling

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

    Across the Continental United States | Department of Energy Real-World Greenhouse Gas Emissions from a MY2010 Diesel Truck Traveling Across the Continental United States Real-World Greenhouse Gas Emissions from a MY2010 Diesel Truck Traveling Across the Continental United States Data analysis from this study will provide insight into real-world performance of current emissions reduction devices, under various operating conditions, and with respect to greenhouse gas emissions. p-03_carder.pdf

  6. Vehicle Technologies Office Merit Review 2015: Analyzing Real-World Light

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

    Duty Vehicle Efficiency Benefits | Department of Energy Analyzing Real-World Light Duty Vehicle Efficiency Benefits Vehicle Technologies Office Merit Review 2015: Analyzing Real-World Light Duty Vehicle Efficiency Benefits Presentation given by National Renewable Energy Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about analyzing real-world light duty vehicle efficiency benefits.

  7. EERE Success Story-Competition Provides Students with Real-World...

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

    Competition Provides Students with Real-World Engineering ... also develop business, marketing, and education strategies ... Cal State, Los Angeles - California Colorado State - ...

  8. Simulated Real-World Energy Impacts of a Thermally Sensitive Powertrain Considering Viscous Losses and Enrichment (Presentation)

    SciTech Connect (OSTI)

    Wood, E.; Gonder, J.; Lopp, S.; Jehlik, F.

    2014-09-01

    It is widely understood that cold-temperature engine operation negatively impacts vehicle fuel use due to a combination of increased friction (high-viscosity engine oil) and temporary enrichment (accelerated catalyst heating). However, relatively little effort has been dedicated to thoroughly quantifying these impacts across a large number of driving cycles and ambient conditions. This work leverages high-quality dynamometer data collected at various ambient conditions to develop a modeling framework for quantifying engine cold-start fuel penalties over a wide array of real-world usage profiles. Additionally, mitigation strategies including energy retention and exhaust heat recovery are explored with benefits quantified for each approach.

  9. Improved AST's Based on Real World FCV Data | Department of Energy

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

    Improved AST's Based on Real World FCV Data Improved AST's Based on Real World FCV Data Presented at the Department of Energy Fuel Cell Projects Kickoff Meeting, September 1 - October 1, 2009 madden_utc_kickoff.pdf (312.69 KB) More Documents & Publications Fuel Cell Projects Kickoff Meeting Accelerated Testing Validation FC-PAD Organization and Activities

  10. Transportation Secure Data Center: Real-world Data for Planning...

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

    These publicly available data sets include high-level summary statistics, vehicle and ... Although users cannot remove raw data from the secure environment, they can conduct ...

  11. Comparison of Real World Energy Consumption to Models and Department of Energy Test Procedures

    SciTech Connect (OSTI)

    Goetzler, William; Sutherland, Timothy; Kar, Rahul; Foley, Kevin

    2011-09-01

    This study investigated the real-world energy performance of appliances and equipment as it compared with models and test procedures. The study looked to determine whether the U.S. Department of Energy and industry test procedures actually replicate real world conditions, whether performance degrades over time, and whether installation patterns and procedures differ from the ideal procedures. The study first identified and prioritized appliances to be evaluated. Then, the study determined whether real world energy consumption differed substantially from predictions and also assessed whether performance degrades over time. Finally, the study recommended test procedure modifications and areas for future research.

  12. Real World Demonstration of a New American Low-Head Hydropower Unit |

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

    Department of Energy Real World Demonstration of a New American Low-Head Hydropower Unit Real World Demonstration of a New American Low-Head Hydropower Unit Real World Demonstration of a New American Low-Head Hydropower Unit 69d_hydrogreen_hydro_demonstration_12.ppt (757.5 KB) More Documents & Publications Laboratory Demonstration of a New American Low-Head Hydropower Turbine Turbine Aeration Physical Modeling and Software Design Scalable Low-head Axial-type Venturi-flow Energy Scavenger

  13. Analysis of Battery Wear and V2G Benefits Using Real-world Drive...

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

    11 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation vss044barnitt2011p.pdf (596.92 KB) More Documents & Publications ...

  14. EERE Success Story-Competition Provides Students with Real-World

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

    Engineering Experience | Department of Energy Competition Provides Students with Real-World Engineering Experience EERE Success Story-Competition Provides Students with Real-World Engineering Experience April 10, 2013 - 12:00am Addthis Fifteen universities across North America are participating in EcoCAR 2-EERE's latest advanced vehicle technology competition (AVTC). Managed by Argonne National Laboratory, EcoCAR 2 is a three-year engineering competition where graduate and undergraduate

  15. Measuring "Real World" Heavy-Duty Diesel Emissions with a Mobile Lab |

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

    Department of Energy "Real World" Heavy-Duty Diesel Emissions with a Mobile Lab Measuring "Real World" Heavy-Duty Diesel Emissions with a Mobile Lab 2002 DEER Conference Presentation: University of California, Riverside 2002_deer_miller.pdf (1.13 MB) More Documents & Publications The California Demonstration Program for Control of PM from Diesel Backup Generators (BUGs) The California Demonstration Program for Control of PM from Diesel Backup Generators = Recent

  16. American Road: Clean Diesels for the Real World | Department of Energy

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

    American Road: Clean Diesels for the Real World American Road: Clean Diesels for the Real World Perspectives on clean diesels and public policy as it is developing in the US, as compared to EU deer08_mcmahon.pdf (934.03 KB) More Documents & Publications Opportunity Assessment Clean Diesels in the North American Light Duty Market Why Light Duty Diesels Make Sense in the North American Market BMW Diesel - Engine Concepts for Efficient Dynamics

  17. Building America Webinar: Building America: Research for Real-World Results

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

    | Department of Energy America: Research for Real-World Results Building America Webinar: Building America: Research for Real-World Results This presentation was delivered on Dec. 17, 2014, by Eric Werling, Building America Research Coordinator. ba_webinar_werling_12-17-14.pdf (6.19 MB) More Documents & Publications Zero Energy Ready Home Training Presentation DOE ZERH Webinar: High-Performance Home Sales Training, Part I DOE ZERH Webinar: Marketing and Sales Solutions for Zero Energy

  18. Sandia algae raceway paves path from lab to real-world applications |

    National Nuclear Security Administration (NNSA)

    National Nuclear Security Administration | (NNSA) Sandia algae raceway paves path from lab to real-world applications Tuesday, February 9, 2016 - 9:25am NNSA Blog Sandia California held a ribbon cutting ceremony for the Algae Raceway Testing Facility last week. The new facility will help scientists advance laboratory research to real-world applications. In a twist of geometry, an oval can make a line. The new algae raceway testing facility at Sandia National Laboratories in California may be

  19. Lean NOx Traps - Microstructural Studies of Real World and Model Catalysts

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

    | Department of Energy Traps - Microstructural Studies of Real World and Model Catalysts Lean NOx Traps - Microstructural Studies of Real World and Model Catalysts 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005_deer_narula.pdf (143.66 KB) More Documents & Publications Vehicle Technologies Office Merit Review 2016: Next Generation Three-Way Catalysts for Future, Highly Efficient Gasoline Engines Low Temperature Emission Control Pre-Competitive

  20. Building America Webinar: Building America: Research for Real-World Results

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

    | Department of Energy America: Research for Real-World Results Building America Webinar: Building America: Research for Real-World Results For 20 years, the U.S. Department of Energy's (DOE) Building America program has been a source of innovations for high performance homes. This webinar on December 17, 2014, featured Eric Werling, Building America Program Coordinator, providing an overview of key Building America accomplishments, current research focus areas, and future strategies for

  1. Map Matching and Real World Integrated Sensor Data Warehousing (Presentation)

    SciTech Connect (OSTI)

    Burton, E.

    2014-02-01

    The inclusion of interlinked temporal and spatial elements within integrated sensor data enables a tremendous degree of flexibility when analyzing multi-component datasets. The presentation illustrates how to warehouse, process, and analyze high-resolution integrated sensor datasets to support complex system analysis at the entity and system levels. The example cases presented utilizes in-vehicle sensor system data to assess vehicle performance, while integrating a map matching algorithm to link vehicle data to roads to demonstrate the enhanced analysis possible via interlinking data elements. Furthermore, in addition to the flexibility provided, the examples presented illustrate concepts of maintaining proprietary operational information (Fleet DNA) and privacy of study participants (Transportation Secure Data Center) while producing widely distributed data products. Should real-time operational data be logged at high resolution across multiple infrastructure types, map matched to their associated infrastructure, and distributed employing a similar approach; dependencies between urban environment infrastructures components could be better understood. This understanding is especially crucial for the cities of the future where transportation will rely more on grid infrastructure to support its energy demands.

  2. Hybrid Electric Vehicles: How They Perform in the Real World | Department

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

    of Energy Hybrid Electric Vehicles: How They Perform in the Real World Hybrid Electric Vehicles: How They Perform in the Real World October 5, 2009 - 11:27am Addthis John Lippert One advantage of working on a U.S. Department of Energy (DOE) support team is that I'm exposed to the impressive work DOE is doing to develop and promote advanced energy technologies. I'm particularly impressed with the data DOE has gathered as part of the Advanced Vehicle Testing Activity (AVTA) on many of the

  3. Comparison of Real World Energy Consumption to Models and DOE Test Procedures

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

    Comparison of Real World Energy Consumption to Models and Department of Energy Test Procedures September 2011 i NOTICE This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government, nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness,

  4. U.S. Department of Energy Launches Real World Design Challenge: Goal of New

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

    Competition Is to Inspire High School Students to Study Engineering | U.S. DOE Office of Science (SC) U.S. Department of Energy Launches Real World Design Challenge: Goal of New Competition Is to Inspire High School Students to Study Engineering News News Home Featured Articles Science Headlines 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Science Highlights Presentations & Testimony News Archives Communications and Public Affairs Contact Information Office of Science U.S.

  5. Bridging the Nano-World and the Real World in Polymer Solar Cells | U.S.

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

    DOE Office of Science (SC) Bridging the Nano-World and the Real World in Polymer Solar Cells Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) Community Resources Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3081 F: (301) 903-6594 E: Email Us More Information »

  6. Synthetic graph generation for data-intensive HPC benchmarking: Scalability, analysis and real-world application

    SciTech Connect (OSTI)

    Powers, Sarah S.; Lothian, Joshua

    2014-12-01

    The benchmarking effort within the Extreme Scale Systems Center at Oak Ridge National Laboratory seeks to provide High Performance Computing benchmarks and test suites of interest to the DoD sponsor. The work described in this report is a part of the effort focusing on graph generation. A previously developed benchmark, SystemBurn, allows the emulation of a broad spectrum of application behavior profiles within a single framework. To complement this effort, similar capabilities are desired for graph-centric problems. This report described the in-depth analysis of the generated synthetic graphs' properties at a variety of scales using different generator implementations and examines their applicability to replicating real world datasets.

  7. Analysis of Battery Wear and V2G Benefits Using Real-world Drive Cycles and Ambient Data

    Office of Energy Efficiency and Renewable Energy (EERE)

    2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

  8. Real world programs, real world strategies, real world successes

    SciTech Connect (OSTI)

    Hogan, K.

    1997-12-31

    This paper presents a very brief overview of market opportunities for using energy efficient technology. A brief summary of greenhouse gas emissions and global climate change concludes that the threat of global warming must be taken seriously. It is stated that there are numerous technologies available which can reduce energy use by up to 50%, while offering attractive rates of return. Market analysis has identified a trillion dollar market for high efficiency products and services over the next decade. Three main areas of business opportunity for capitalizing on the growing market for energy efficiency are identified: (1) using efficient energy technology in-house, (2) marketing energy efficient products, and (3) international markets.

  9. 10 Years ON: From the Lab to the Real World in 10 Years | GE Global

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

    Energy Revolution | Department of Energy Ways the Clean Energy Ministerial Is Speeding Up the World's Clean Energy Revolution 10 Ways the Clean Energy Ministerial Is Speeding Up the World's Clean Energy Revolution May 18, 2016 - 11:08am Addthis 10 Ways the Clean Energy Ministerial Is Speeding Up the World’s Clean Energy Revolution If we're going to solve the challenge of climate change, drive economic growth and ensure energy security, we need to make a rapid shift to clean energy --

  10. Real-World Models

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

    of Technology (MIT), Michigan State University, Michigan Technological University, New Hampshire University, Pennsylvania State University, Stanford University, University of ...

  11. A comparison of global optimization algorithms with standard benchmark functions and real-world applications using Energy Plus

    SciTech Connect (OSTI)

    Kamph, Jerome Henri; Robinson, Darren; Wetter, Michael

    2009-09-01

    There is an increasing interest in the use of computer algorithms to identify combinations of parameters which optimise the energy performance of buildings. For such problems, the objective function can be multi-modal and needs to be approximated numerically using building energy simulation programs. As these programs contain iterative solution algorithms, they introduce discontinuities in the numerical approximation to the objective function. Metaheuristics often work well for such problems, but their convergence to a global optimum cannot be established formally. Moreover, different algorithms tend to be suited to particular classes of optimization problems. To shed light on this issue we compared the performance of two metaheuristics, the hybrid CMA-ES/HDE and the hybrid PSO/HJ, in minimizing standard benchmark functions and real-world building energy optimization problems of varying complexity. From this we find that the CMA-ES/HDE performs well on more complex objective functions, but that the PSO/HJ more consistently identifies the global minimum for simpler objective functions. Both identified similar values in the objective functions arising from energy simulations, but with different combinations of model parameters. This may suggest that the objective function is multi-modal. The algorithms also correctly identified some non-intuitive parameter combinations that were caused by a simplified control sequence of the building energy system that does not represent actual practice, further reinforcing their utility.

  12. More Than 410,000 Hours of Real-World Fuel Cell System Operation Have Been Analyzed by NREL's Technology Validation Team (Fact Sheet)

    SciTech Connect (OSTI)

    Kurtz, J.; Wipke, K.; Sprik, S.; Ramsden, T.

    2011-02-01

    This fact sheet discusses how researchers at the National Renewable Energy Laboratory (NREL) are working to validate hydrogen and fuel cell systems in real-world settings. NREL strives to provide an independent third-party technology assessment that focuses on fuel cell system and hydrogen infrastructure performance, operation, maintenance, and safety.

  13. Vehicle Technologies Office Merit Review 2016: Evaluation of Vehicle Technology Benefits on Real World Driving Cycles using Regional Transportation System Model

    Broader source: Energy.gov [DOE]

    Presentation given by Argonne National Laboratory (ANL) at the 2016 DOE Vehicle Technologies Office and Hydrogen and Fuel Cells Program Annual Merit Review and Peer Evaluation Meeting about Vehicle...

  14. From the Lab to the real world : sources of error in UF {sub 6} gas enrichment monitoring

    SciTech Connect (OSTI)

    Lombardi, Marcie L.

    2012-03-01

    {sub 6} gas enrichment monitors have required empty pipe measurements to accurately determine the pipe attenuation (the pipe attenuation is typically much larger than the attenuation in the gas). This dissertation reports on a method for determining the thickness of a pipe in a GCEP when obtaining an empty pipe measurement may not be feasible. This dissertation studies each of the components that may add to the final error in the enrichment measurement, and the factors that were taken into account to mitigate these issues are also detailed and tested. The use of an x-ray generator as a transmission source and the attending stability issues are addressed. Both analytical calculations and experimental measurements have been used. For completeness, some real-world analysis results from the URENCO Capenhurst enrichment plant have been included, where the final enrichment error has remained well below 1% for approximately two months.

  15. "Dedicated To The Continued Education, Training and Demonstration of PEM Fuel Cell Powered Lift Trucks In Real-World Applications."

    SciTech Connect (OSTI)

    Dever, Thomas J.

    2011-11-29

    The project objective was to further assist in the commercialization of fuel cell and H2 technology by building further upon the successful fuel cell lift truck deployments that were executed by LiftOne in 2007, with longer deployments of this technology in real-world applications. We involved facilities management, operators, maintenance personnel, safety groups, and Authorities Having Jurisdiction. LiftOne strived to educate a broad group from many areas of industry and the community as to the benefits of this technology. Included were First Responders from the local areas. We conducted month long deployments with end-users to validate the value proposition and the market requirements for fuel cell powered lift trucks. Management, lift truck operators, Authorities Having Jurisdiction and the general public experienced 'hands on' fuel cell experience in the material handling applications. We partnered with Hydrogenics in the execution of the deployment segment of the program. Air Products supplied the compressed H2 gas and the mobile fueler. Data from the Fuel Cell Power Packs and the mobile fueler was sent to the DOE and NREL as required. Also, LiftOne conducted the H2 Education Seminars on a rotating basis at their locations for lift trucks users and for other selected segments of the community over the project's 36 month duration. Executive Summary The technology employed during the deployments program was not new, as the equipment had been used in several previous demos and early adoptions within the material handling industry. This was the case with the new HyPx Series PEM - Fuel Cell Power Packs used, which had been demo'd before during the 2007 Greater Columbia Fuel Cell Challenge. The Air Products HF-150 Fueler was used outdoors during the deployments and had similarly been used for many previous demo programs. The methods used centered on providing this technology as the power for electric sit-down lift trucks at high profile companies operating large

  16. Development and Implementation of Degree Programs in Electric Drive Vehicle Technology

    SciTech Connect (OSTI)

    Ng, Simon

    2013-09-30

    The Electric-drive Vehicle Engineering (EVE) MS degree and graduate certificate programs have been continuing to make good progress, thanks to the funding and the guidance from DOE grant management group, the support from our University and College administrations, and to valuable inputs and feedback from our Industrial Advisory Board as well as our project partners Macomb Community College and NextEnergy. Table 1 below lists originally proposed Statement of Project Objectives (SOPO), which have all been completed successfully. Our program and course enrollments continue to be good and increasing, as shown in later sections. Our graduating students continue to get good job offers from local EV-related companies. Following the top recommendation from our Industrial Advisory Board, we were fortunate enough to be accepted into the prestigious EcoCAR2 (http://www.ecocar2.org/) North America university design competition, and have been having some modest success with the competition. But most importantly, EcoCAR2 offers the most holistic educational environment for integrating real-world engineering and design with our EVE graduate curriculum. Such integrations include true real-world hands-on course projects based on EcoCAR2 related tasks for the students, and faculty curricular and course improvements based on lessons and best practices learned from EcoCAR2. We are in the third and last year of EcoCAR2, and we have already formed a core group of students in pursuit of EcoCAR”3”, for which the proposal is due in early December.

  17. iDriving (Intelligent Driving)

    Energy Science and Technology Software Center (OSTI)

    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

  18. Environment

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

    Video News Room News Releases Environment newsroomassetsimagesenvi-icon.png Earth, Environment Climate impacts, including global temperatures, drought and forest fires ...

  19. Environment

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

    Environment Environment Events Learn about our science, listen to lectures on environment and climate change at the Bradbury Science Museum or at Cafe Scientific events in your community. Oct 14 Wed 4:00 PM Laboratory's Electronic Public Reading room training J. Robert Oppenheimer Study Center, Room JRO 1&2 - West Jemez Road at Casa Grande The Department of Energy (DOE) and the Los Alamos National Security, LLC (LANS), are holding training on the contents and use of the Los Alamos National

  20. Environment

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

    Environment Environment A repository for images showing environmental cleanup and protection efforts around the Lab. News Releases Science Briefs Photos Picture of the Week Publications Social Media Videos Fact Sheets PHOTOS BY TOPIC Careers Community Visitors Environment History Science The Lab Click thumbnails to enlarge. Photos arranged by most recent first, horizontal formats before vertical. See Flickr for more sizes and details. Workers sample contents of LANL's Material Disposal Area B

  1. The Effect of Driving Intensity and Incomplete Charging on the Fuel Economy of a Hymotion Prius PHEV

    SciTech Connect (OSTI)

    Richard Barney Carlson

    2009-10-01

    On-road testing was conducted on a Hymotion Prius plug-in hybrid electric vehicle (PHEV) at the Electric Transportation Engineering Corporation in Phoenix, Arizona. The tests were comprised of on-road urban and highway driving during charge-depleting and charge-sustaining operation. Determining real-world effectiveness of PHEVs at reducing petroleum consumption in real world driving was the main focus of the study. Throughout testing, several factors that affect fuel consumption of PHEVs were identified. This report discusses two of these factors: driving intensity (i.e., driving aggressiveness) and battery charging completeness. These two factors are unrelated, yet both significantly impact the vehicles fuel economy. Driving intensity was shown to decrease fuel economy by up to half. Charging completeness, which was affected by human factors and ambient temperature conditions, also showed to have great impact on fuel economy for the Hymotion Prius. These tests were performed for the U.S. Department of Energys Advanced Vehicle Testing Activity. The Advanced Vehicle Testing Activity, part of the U.S. Department of Energys Vehicle Technology Program, is conducted by the Idaho National Laboratory and the Electric Transportation Engineering Corporation.

  2. Statistical Characterization of Medium-Duty Electric Vehicle Drive Cycles; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Prohaska, R.; Duran, A.; Ragatz, A.; Kelly, K.

    2015-05-03

    With funding from the U.S. Department of Energy’s Vehicle Technologies Office, the National Renewable Energy Laboratory (NREL) conducts real-world performance evaluations of advanced medium- and heavy-duty fleet vehicles. Evaluation results can help vehicle manufacturers fine-tune their designs and assist fleet managers in selecting fuel-efficient, low-emission vehicles that meet their economic and operational goals. In 2011, NREL launched a large-scale performance evaluation of medium-duty electric vehicles. With support from vehicle manufacturers Smith and Navistar, NREL research focused on characterizing vehicle operation and drive cycles for electric delivery vehicles operating in commercial service across the nation.

  3. Holiday Food Drive

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

    Food Drive Holiday Food Drive Laboratory employees helped donate 300 boxes of nonperishable food items and 360 frozen turkeys during the 2015 annual food drive. 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 Helping feed Northern New Mexico families During the Laboratory's 2015 Annual Food Drive, employees and subcontract workers once again

  4. Modeling Heavy/Medium-Duty Fuel Consumption Based on Drive Cycle Properties

    SciTech Connect (OSTI)

    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. Student's algorithm solves real-world problem

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

    for modeling lung cancer. In other news December, 1 2015 - Novel therapy for stomach cancer; grand opening of Manhattan Project National Historical Park; 2015 Northern New...

  6. Real-World PHEV Fuel Economy Prediction

    Broader source: Energy.gov [DOE]

    2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

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

    SciTech Connect (OSTI)

    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.

  8. Methods and systems relating to an augmented virtuality environment

    DOE Patents [OSTI]

    Nielsen, Curtis W; Anderson, Matthew O; McKay, Mark D; Wadsworth, Derek C; Boyce, Jodie R; Hruska, Ryan C; Koudelka, John A; Whetten, Jonathan; Bruemmer, David J

    2014-05-20

    Systems and methods relating to an augmented virtuality system are disclosed. A method of operating an augmented virtuality system may comprise displaying imagery of a real-world environment in an operating picture. The method may further include displaying a plurality of virtual icons in the operating picture representing at least some assets of a plurality of assets positioned in the real-world environment. Additionally, the method may include displaying at least one virtual item in the operating picture representing data sensed by one or more of the assets of the plurality of assets and remotely controlling at least one asset of the plurality of assets by interacting with a virtual icon associated with the at least one asset.

  9. Environment Videos

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

    Environment Videos Environment

  10. Drill drive mechanism

    DOE Patents [OSTI]

    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.

  11. Electric Drive Status and Challenges

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

    Leaf * 75 mile electric range * 80 kW electric drive * electric drive cost:1,600 Tesla Model S * 250 mile electric range * 270 kW electric drive * electric drive ...

  12. New Mexico Environment Department | Open Energy Information

    Open Energy Info (EERE)

    Department Jump to: navigation, search Logo: New Mexico Environment Department Name: New Mexico Environment Department Abbreviation: NMED Address: 1190 St. Francis Drive, Suite...

  13. Driving/Idling Resources

    Broader source: 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...

  14. Holiday Food Drive

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

  15. Variable Frequency Drives

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

  16. National Drive Electric Week

    Office of Energy Efficiency and Renewable Energy (EERE)

    Celebrate National Drive Electric Week with ways to make your all-electric or plug-in hybrid cars even greener!

  17. Requirements for Defining Utility Drive Cycles: An Exploratory Analysis of Grid Frequency Regulation Data for Establishing Battery Performance Testing Standards

    SciTech Connect (OSTI)

    Hafen, Ryan P.; Vishwanathan, Vilanyur V.; Subbarao, Krishnappa; Kintner-Meyer, Michael CW

    2011-10-19

    Battery testing procedures are important for understanding battery performance, including degradation over the life of the battery. Standards are important to provide clear rules and uniformity to an industry. The work described in this report addresses the need for standard battery testing procedures that reflect real-world applications of energy storage systems to provide regulation services to grid operators. This work was motivated by the need to develop Vehicle-to-Grid (V2G) testing procedures, or V2G drive cycles. Likewise, the stationary energy storage community is equally interested in standardized testing protocols that reflect real-world grid applications for providing regulation services. As the first of several steps toward standardizing battery testing cycles, this work focused on a statistical analysis of frequency regulation signals from the Pennsylvania-New Jersey-Maryland Interconnect with the goal to identify patterns in the regulation signal that would be representative of the entire signal as a typical regulation data set. Results from an extensive time-series analysis are discussed, and the results are explained from both the statistical and the battery-testing perspectives. The results then are interpreted in the context of defining a small set of V2G drive cycles for standardization, offering some recommendations for the next steps toward standardizing testing protocols.

  18. Piezoelectric drive circuit

    DOE Patents [OSTI]

    Treu, C.A. Jr.

    1999-08-31

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

  19. Piezoelectric drive circuit

    DOE Patents [OSTI]

    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.

  20. Control rod drive

    DOE Patents [OSTI]

    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.

  1. 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 ...

  2. Traction Drive Systems Breakout

    Broader source: 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.

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

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

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

  4. Direct drive wind turbine

    DOE Patents [OSTI]

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

    2006-10-10

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

  5. Direct drive wind turbine

    DOE Patents [OSTI]

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

    2007-02-27

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

  6. Direct drive wind turbine

    DOE Patents [OSTI]

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

    2006-07-11

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

  7. Direct drive wind turbine

    DOE Patents [OSTI]

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

    2006-09-19

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

  8. Holiday Gift Drive

    Broader source: All U.S. Department of Energy (DOE) Office 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 children, senior citizens, and families 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

  9. CONTROL ROD DRIVE

    DOE Patents [OSTI]

    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.

  10. Dynamic driving cycle analyses using electric vehicle time-series data

    SciTech Connect (OSTI)

    Staackmann, M.; Liaw, B.Y.; Yun, D.Y.Y.

    1997-12-31

    Dynamic analyses of time-series data collected from real-world driving-cycle field testing of electric vehicles is providing evidence that certain driving-cycle conditions can significantly impact vehicle performance. In addition, vehicle performance results derived from time-series data show relationships that help to characterize driving cycles. Such findings confirm the advantages of time-series data over statistical data, in allowing correlation of vehicle performance characteristics with driving cycles. The driving-cycle vehicle performance analyses were performed using time-series data collected at the Electric and Hybrid Vehicle (EHV) National Data Center (NDC). A total of 71 EHVs are registered in the NDC and over 4,000 trips files have already been uploaded into the NDC database, as of may 1997. Numerous EHVs on multiple trips have been analyzed over the past two years. This paper presents the results of time-series data collected and analyzed for two specific vehicles of the overall program, to illustrate the value of time-series data. The data were analyzed to establish criteria for defining different driving cycles for the day-to-day trips made by vehicles in the program. The authors examined specific parameters such as average vehicle speed, number of stops during a trip, average distance traveled between stops, vehicle acceleration, and average DC kWh consumed per kilometer. Correlation among various parameters is presented in relationship to three driving cycles (highway, suburban, and urban), along with suggested ranges of parametric values defining the regimes of the different cycles.

  11. U.S. DRIVE

    SciTech Connect (OSTI)

    2012-03-16

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

  12. Ceramic vane drive joint

    DOE Patents [OSTI]

    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.

  13. CONTROL ROD DRIVE

    DOE Patents [OSTI]

    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.

  14. Statistical Characterization of Medium-Duty Electric Vehicle Drive Cycles

    SciTech Connect (OSTI)

    Prohaska, Robert; Duran, Adam; Ragatz, Adam; Kelly, Kenneth

    2015-05-03

    In an effort to help commercialize technologies for electric vehicles (EVs) through deployment and demonstration projects, the U.S. Department of Energy's (DOE's) American Recovery and Reinvestment Act (ARRA) provided funding to participating U.S. companies to cover part of the cost of purchasing new EVs. Within the medium- and heavy-duty commercial vehicle segment, both Smith Electric Newton and and Navistar eStar vehicles qualified for such funding opportunities. In an effort to evaluate the performance characteristics of the new technologies deployed in these vehicles operating under real world conditions, data from Smith Electric and Navistar medium-duty EVs were collected, compiled, and analyzed by the National Renewable Energy Laboratory's (NREL) Fleet Test and Evaluation team over a period of 3 years. More than 430 Smith Newton EVs have provided data representing more than 150,000 days of operation. Similarly, data have been collected from more than 100 Navistar eStar EVs, resulting in a comparative total of more than 16,000 operating days. Combined, NREL has analyzed more than 6 million kilometers of driving and 4 million hours of charging data collected from commercially operating medium-duty electric vehicles in various configurations. In this paper, extensive duty-cycle statistical analyses are performed to examine and characterize common vehicle dynamics trends and relationships based on in-use field data. The results of these analyses statistically define the vehicle dynamic and kinematic requirements for each vehicle, aiding in the selection of representative chassis dynamometer test cycles and the development of custom drive cycles that emulate daily operation. In this paper, the methodology and accompanying results of the duty-cycle statistical analysis are presented and discussed. Results are presented in both graphical and tabular formats illustrating a number of key relationships between parameters observed within the data set that relate to

  15. DrivePy

    Energy Science and Technology Software Center (OSTI)

    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.

  16. CSU - Institute for the Built Environment | Open Energy Information

    Open Energy Info (EERE)

    Institute for the Built Environment Jump to: navigation, search Name: CSU - Institute for the Built Environment Address: 1000 Oval Drive Place: Fort Collins, Colorado Zip: 80523...

  17. Electric Drive Systems

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

    Drive Systems - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs Advanced Nuclear Energy

  18. Blood Drive | The Ames Laboratory

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

  19. Drive Diagnostic Filter Wheel Control

    Energy Science and Technology Software Center (OSTI)

    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.

  20. Drive alignment pays maintenance dividends

    SciTech Connect (OSTI)

    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.

  1. Base drive circuit

    DOE Patents [OSTI]

    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.

  2. Base drive circuit

    DOE Patents [OSTI]

    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).

  3. Stop/Start: Driving

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    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.

  4. Hydraulic Hybrid and Conventional Parcel Delivery Vehicles' Measured Laboratory Fuel Economy on Targeted Drive Cycles

    SciTech Connect (OSTI)

    Lammert, M. P.; Burton, J.; Sindler, P.; Duran, A.

    2014-10-01

    This research project compares laboratory-measured fuel economy of a medium-duty diesel powered hydraulic hybrid vehicle drivetrain to both a conventional diesel drivetrain and a conventional gasoline drivetrain in a typical commercial parcel delivery application. Vehicles in this study included a model year 2012 Freightliner P100H hybrid compared to a 2012 conventional gasoline P100 and a 2012 conventional diesel parcel delivery van of similar specifications. Drive cycle analysis of 484 days of hybrid parcel delivery van commercial operation from multiple vehicles was used to select three standard laboratory drive cycles as well as to create a custom representative cycle. These four cycles encompass and bracket the range of real world in-use data observed in Baltimore United Parcel Service operations. The NY Composite cycle, the City Suburban Heavy Vehicle Cycle cycle, and the California Air Resources Board Heavy Heavy-Duty Diesel Truck (HHDDT) cycle as well as a custom Baltimore parcel delivery cycle were tested at the National Renewable Energy Laboratory's Renewable Fuels and Lubricants Laboratory. Fuel consumption was measured and analyzed for all three vehicles. Vehicle laboratory results are compared on the basis of fuel economy. The hydraulic hybrid parcel delivery van demonstrated 19%-52% better fuel economy than the conventional diesel parcel delivery van and 30%-56% better fuel economy than the conventional gasoline parcel delivery van on cycles other than the highway-oriented HHDDT cycle.

  5. Rotary drive mechanism

    SciTech Connect (OSTI)

    Kenderdine, E.W.

    1991-10-08

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

  6. Rotary drive mechanism

    DOE Patents [OSTI]

    Kenderdine, Eugene W. (Albuquerque, NM)

    1991-01-01

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

  7. 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 ...

  8. 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 ...

  9. School supply drive winding down

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

    School Supply Drive Winding Down Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: September 1, 2016 all issues All Issues » submit School supply drive winding down The drive is collecting materials for schools throughout Northern New Mexico and will be distributed by the Lab and Self Help, Inc. August 1, 2012 dummy image Read our archives Contacts Editor Linda Anderman Email Community Programs Office Kurt Steinhaus Email Notebooks,

  10. Sequenced drive for rotary valves

    DOE Patents [OSTI]

    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.

  11. Back to School Drive 2016

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

  12. Distribution Drive | Open Energy Information

    Open Energy Info (EERE)

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

  13. Test Drive: Honda FCX Clarity

    Broader source: 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.

  14. Electric drive mechanism for vehicles

    SciTech Connect (OSTI)

    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.

  15. Lean NOx Traps - Microstructural Studies of Real World and Model...

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

    KB) More Documents & Publications Low Temperature Emission Control Pre-Competitive Catalysis Research: Fundamental SulfationDesulfation Studies of Lean NOx Traps Investigation ...

  16. Building America: Research for Real-World Results

    Broader source: Energy.gov [DOE]

    For 20 years, the U.S. Department of Energy’s Building America program has been a source of innovations for high performance homes. Join Eric Werling, Building America Program Coordinator, and Sam...

  17. Practical Considerations for Analysis By Synthesis, a Real World...

    Office of Scientific and Technical Information (OSTI)

    A paper copy of this document is also available for sale to the public from the National Technical Information Service, Springfield, VA at www.ntis.gov. Authors: Carroll, James L. ...

  18. Competition Provides Students with Real-World Engineering Experience...

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

    must also develop business, marketing, and education strategies for their vehicles. ... University of Waterloo - Canada Virginia Tech - Virginia Wayne State University - ...

  19. Improved AST's Based on Real World FCV Data

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

    Tom Madden Manager, Advanced PEM Technology UTC Power Corporation This presentation does not contain any proprietary or confidential information IMPROVED AST's BASED ON FCV DATA ...

  20. Map Matching and Real World Integrated Sensor Data Warehousing...

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

    are linked using an XY coordinate system (Earth) * Links established by passing primary ... to second-by-second data * Summary statistics are generated at the vehicle, day, and ...

  1. Practical Considerations for Analysis By Synthesis, a Real World...

    Office of Scientific and Technical Information (OSTI)

    Research Org: Los Alamos National Laboratory (LANL) Sponsoring Org: DOELANL Country of Publication: United States Language: English Subject: Mathematics & Computing(97) Word Cloud ...

  2. Analyzing Fuel Saving Opportunities through Driver Feedback Mechanisms...

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

    More Documents & Publications Analysis of maximizing the Synergy between PHEVsEVs and PV Defining Real World Drive Cycles to Support APRF Technology Evaluations Real-World PHEV ...

  3. Traction Drive Systems Breakout Group

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

    TRACTION DRIVE SYSTEM BREAKOUT GROUP EV Everywhere Workshop July 24, 2012 Breakout Session #1 - Discussion of Performance Targets and Barriers Comments on the Achievability of the Targets * 1 - What is the material cost floor to meet the $4/kW (AER300) & $15/kW (AER100)? * 2 - Consolidation of power module technologies will help meet cost targets * 3 - Don't overlook profit motive in value chain * 4 - Today's HEV systems drive EV traction drive systems because of manufacturing base Barriers

  4. Magnetic compression laser driving circuit

    DOE Patents [OSTI]

    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.

  5. Magnetic compression laser driving circuit

    DOE Patents [OSTI]

    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.

  6. Upgrading coal plant damper drives

    SciTech Connect (OSTI)

    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

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

    DOE Patents [OSTI]

    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

    DOE Patents [OSTI]

    Grahn, A.R.

    1998-03-10

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

  10. Mechanical drive for blood pump

    DOE Patents [OSTI]

    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)

  11. Low backlash direct drive actuator

    DOE Patents [OSTI]

    Kuklo, T.C.

    1994-10-25

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

  12. Low backlash direct drive actuator

    DOE Patents [OSTI]

    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.

  13. Driving Green com | Open Energy Information

    Open Energy Info (EERE)

    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...

  14. April Blood Drive Announcement | Jefferson Lab

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

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

    Office of Environmental Management (EM)

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

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

    Energy Savers [EERE]

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

  17. Cone Drive Operations Inc | Open Energy Information

    Open Energy Info (EERE)

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

  18. 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 ...

  19. EVALUATION OF RANGE ESTIMATES FOR TOYOTA FCHV-ADV UNDER OPEN ROAD DRIVING CONDITIONS

    SciTech Connect (OSTI)

    Anton, D.; Wipke, K.; Sprik, S.

    2009-07-10

    The objective of this evaluation was to independently and objectively verify driving ranges of >400 miles announced by Toyota for its new advanced Fuel Cell Hybrid Vehicle (FCHV-adv) utilizing 70 MPa compressed hydrogen. To accomplish this, participants from both Savannah River National Laboratory (SRNL) and the National Renewable Energy Laboratory (NREL) witnessed and participated in a 2-vehicle evaluation with Toyota Motor Engineering & Manufacturing North America, Inc. (TEMA) over a typical open road route for over 11 hours in one day with all relevant data recorded. SRNL and TEMA first entered into discussions of verifying the range of the advanced Toyota Fuel Cell Hybrid Vehicle (FCHV-adv) in August 2008 resulting from reported 400+ mile range by Toyota. After extended negotiations, a CRADA agreement, SRNS CRADA No. CR-04-003, was signed on May 6, 2009. Subsequently, on June 30, 2009 SRNL and NREL participated in an all-day evaluation of the FCHV-adv with TEMA to determine the real-world driving range of this vehicle through on-road driving on an extended round-trip drive between Torrance and San Diego, California. SRNL and NREL observed the vehicles being refueled at Toyota's headquarters the day before the evaluation in Torrance, CA on June 29. At 8:00 AM on June 30, the vehicles departed Torrance north toward downtown Los Angeles, then west to the Pacific Coast Highway, and down to San Diego. After lunch the vehicles retraced their route back to Torrance. The traffic encountered was much heavier than anticipated, causing the vehicles to not return to Torrance until 9 PM. Each vehicle was driven by the same Toyota driver all day, with one SRNL/NREL observer in each vehicle the entire route. Data was logged by Toyota and analyzed by NREL. The maximum range of the FCHV-adv vehicles was calculated to be 431 miles under these driving conditions. This distance was calculated from the actual range of 331.5 miles during over 11 hours driving, plus 99.5 miles of

  20. MULTIPLE DIFFERENTIAL ROTARY MECHANICAL DRIVE

    DOE Patents [OSTI]

    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)

  1. Statistical Characterization of Medium-Duty Electric Vehicle Drive Cycles: Preprint

    SciTech Connect (OSTI)

    Prohaska, R.; Duran, A.; Ragatz, A.; Kelly, K.

    2015-05-01

    In an effort to help commercialize technologies for electric vehicles (EVs) through deployment and demonstration projects, the U.S. Department of Energy’s (DOE's) American Recovery and Reinvestment Act (ARRA) provided funding to participating U.S. companies to cover part of the cost of purchasing new EVs. Within the medium- and heavy-duty commercial vehicle segment, both Smith Electric Newton and and Navistar eStar vehicles qualified for such funding opportunities. In an effort to evaluate the performance characteristics of the new technologies deployed in these vehicles operating under real world conditions, data from Smith Electric and Navistar medium-duty EVs were collected, compiled, and analyzed by the National Renewable Energy Laboratory's (NREL) Fleet Test and Evaluation team over a period of 3 years. More than 430 Smith Newton EVs have provided data representing more than 150,000 days of operation. Similarly, data have been collected from more than 100 Navistar eStar EVs, resulting in a comparative total of more than 16,000 operating days. Combined, NREL has analyzed more than 6 million kilometers of driving and 4 million hours of charging data collected from commercially operating medium-duty electric vehicles in various configurations. In this paper, extensive duty-cycle statistical analyses are performed to examine and characterize common vehicle dynamics trends and relationships based on in-use field data. The results of these analyses statistically define the vehicle dynamic and kinematic requirements for each vehicle, aiding in the selection of representative chassis dynamometer test cycles and the development of custom drive cycles that emulate daily operation. In this paper, the methodology and accompanying results of the duty-cycle statistical analysis are presented and discussed. Results are presented in both graphical and tabular formats illustrating a number of key relationships between parameters observed within the data set that relate to

  2. Drive reconfiguration mechanism for tracked robotic vehicle

    DOE Patents [OSTI]

    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.

  3. Anomalous-viscosity current drive

    DOE Patents [OSTI]

    Stix, T.H.; Ono, M.

    1986-04-25

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

  4. Hydromechanical transmission with hydrodynamic drive

    DOE Patents [OSTI]

    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.

  5. Comparison of Plug-In Hybrid Electric Vehicle Battery Life Across Geographies and Drive-Cycles

    SciTech Connect (OSTI)

    Smith, K.; Warleywine, M.; Wood, E.; Neubauer, J.; Pesaran, A.

    2012-06-01

    In a laboratory environment, it is cost prohibitive to run automotive battery aging experiments across a wide range of possible ambient environment, drive cycle and charging scenarios. Since worst-case scenarios drive the conservative sizing of electric-drive vehicle batteries, it is useful to understand how and why those scenarios arise and what design or control actions might be taken to mitigate them. In an effort to explore this problem, this paper applies a semi-empirical life model of the graphite/nickel-cobalt-aluminum lithium-ion chemistry to investigate impacts of geographic environments under storage and simplified cycling conditions. The model is then applied to analyze complex cycling conditions, using battery charge/discharge profiles generated from simulations of PHEV10 and PHEV40 vehicles across 782 single-day driving cycles taken from Texas travel survey data.

  6. GenDrive Limited | Open Energy Information

    Open Energy Info (EERE)

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

  7. Eco Drive Capital Partners | Open Energy Information

    Open Energy Info (EERE)

    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,...

  8. NexxtDrive | Open Energy Information

    Open Energy Info (EERE)

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

  9. SE Drive Technik | Open Energy Information

    Open Energy Info (EERE)

    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:...

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

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

    Systems on Combustion Engines | Department of Energy This poster reports on recent developments, achievements, and capabilities within a virtual environment to predict the dynamic behavior of the Rankine cycle within real driving cycles. p-11_janssens.pdf (168.59 KB) More Documents & Publications Biodiesel Impact on Engine Lubricant Oil Dilution Statistical Analysis of Transient Cycle Test Results in a 40 CFR Part 1065 Engine Dynamometer Test Cell Small-Particle Solar Receiver for

  11. Indianapolis Offers a Lesson on Driving Demand

    Broader source: 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?

  12. Fluid cooled vehicle drive module

    DOE Patents [OSTI]

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

    2005-11-15

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

  13. FMC high power density electric drive technology

    SciTech Connect (OSTI)

    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.

  14. Small Businesses Helping Drive Economy: Clean Energy, Clean Sites...

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

    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: ...

  15. 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...

  16. 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 ...

  17. 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 ...

  18. 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 July 2016. U S DRIVE Partnership Plan - July 2016.pdf (400.46 KB) More Documents &

  19. Electric vehicle drive train with contactor protection

    DOE Patents [OSTI]

    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.

  20. Electric vehicle drive train with contactor protection

    DOE Patents [OSTI]

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

    1994-11-29

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

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

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

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

  2. 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...

  3. 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 ...

  4. Driving the Future | Argonne National Laboratory

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

  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. DistributionDrive | Open Energy Information

    Open Energy Info (EERE)

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

  7. 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 ...

  8. 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 ...

  9. Centerless-drive solar collector system

    SciTech Connect (OSTI)

    Butler, B. L.

    1985-12-24

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

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

    Energy Savers [EERE]

    Electric Drive Technologies Annual Progress Report Vehicle ... FY14EDTAnnualReport.pdf (15.14 MB) More Documents & Publications Vehicle Technologies Office: 2015 ...

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

    Open Energy Info (EERE)

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

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

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

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

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

    Office of Energy Efficiency and Renewable Energy (EERE) 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 ...

  14. 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 ...

  15. 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 ...

  16. 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 ...

  17. Electric-Drive Vehicle Basics (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-04-01

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

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

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

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

  19. Control rod drive hydraulic system

    DOE Patents [OSTI]

    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.

  20. User Environment

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

    User Environment Environment on Genepool When you log into the Genepool system you will land in your $HOME directory on NERSC's "global homes" file system. The global homes file system is mounted across all NERSC computation systems with the exception of PDSF. The $HOME directory has quota of 40GB and 1,000,000 inodes. To customize your environment, by setting environment variables or aliases, you will need to modify one of the "dot" files that NERSC has created for you. You

  1. A high-fidelity harmonic drive model.

    SciTech Connect (OSTI)

    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.

  2. Chapter 18: Variable Frequency Drive Evaluation Protocol

    SciTech Connect (OSTI)

    Romberger, J.

    2014-11-01

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

  3. Control rod drive for reactor shutdown

    DOE Patents [OSTI]

    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.

  4. Wind turbine ring/shroud drive system

    DOE Patents [OSTI]

    Blakemore, Ralph W.

    2005-10-04

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

  5. 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

  6. Universal power transistor base drive control unit

    DOE Patents [OSTI]

    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.

  7. Universal power transistor base drive control unit

    DOE Patents [OSTI]

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

    1988-06-07

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

  8. Consider Steam Turbine Drives for Rotating Equipment

    SciTech Connect (OSTI)

    Not Available

    2006-01-01

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

  9. Do You Drive a Hybrid Electric Vehicle?

    Broader source: Energy.gov [DOE]

    In Tuesday's entry, Francis X. Vogel from the Wisconsin Clean Cities coalition told us about his plug-in hybrid electric vehicle (PHEV). He's one of the lucky few in the United States to drive one...

  10. Frequency modulation drive for a piezoelectric motor

    DOE Patents [OSTI]

    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.

  11. Direct-drive field actuator motors

    DOE Patents [OSTI]

    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.

  12. Direct-drive field actuator motors

    DOE Patents [OSTI]

    Grahn, A.R.

    1995-07-11

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

  13. Semiclassical instability of dynamical warp drives

    SciTech Connect (OSTI)

    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.

  14. Adjustable Speed Drive Part-Load Efficiency

    Broader source: 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.

  15. Collaboration drives achievement in protein structure research

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

  16. Airlines and Aviation Alternative Fuels: Our Drive to Be Early Market Adopters

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

    Airlines & Aviation Alternative Fuels: Our Drive to Be Early Market Adopters Bioenergy 2015 Nancy N. Young, VP-Environment; CAAFI Environment Team Co-Lead June 23, 2015 Why Airlines Want Alternative Fuels airlines.org 2 » New Supply Chain * Energy Security/Supply Reliability * Competitor to Petroleum-Based Fuels » Environmental Benefit/Imperative * Greenhouse Gas (Carbon) Emissions Benefits * Reduce Emissions Affecting Local Air Quality * Do Not Induce Other Environmental Problems U.S.

  17. 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

  18. 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

  19. Effect of B20 and Low Aromatic Diesel on Transit Bus NOx Emissions Over Driving Cycles with a Range of Kinetic Intensity

    SciTech Connect (OSTI)

    Lammert, M. P.; McCormick, R. L.; Sindler, P.; Williams, A.

    2012-10-01

    Oxides of nitrogen (NOx) emissions for transit buses for up to five different fuels and three standard transit duty cycles were compared to establish whether there is a real-world biodiesel NOx increase for transit bus duty cycles and engine calibrations. Six buses representing the majority of the current national transit fleet and including hybrid and selective catalyst reduction systems were tested on a heavy-duty chassis dynamometer with certification diesel, certification B20 blend, low aromatic (California Air Resources Board) diesel, low aromatic B20 blend, and B100 fuels over the Manhattan, Orange County and UDDS test cycles. Engine emissions certification level had the dominant effect on NOx; kinetic intensity was the secondary driving factor. The biodiesel effect on NOx emissions was not statistically significant for most buses and duty cycles for blends with certification diesel, except for a 2008 model year bus. CARB fuel had many more instances of a statistically significant effect of reducing NOx. SCR systems proved effective at reducing NOx to near the detection limit on all duty cycles and fuels, including B100. While offering a fuel economy benefit, a hybrid system significantly increased NOx emissions over a same year bus with a conventional drivetrain and the same engine.

  20. Measured Laboratory and In-Use Fuel Economy Observed over Targeted Drive Cycles for Comparable Hybrid and Conventional Package Delivery Vehicles

    SciTech Connect (OSTI)

    Lammert, M. P.; Walkowicz, K.; Duran, A.; Sindler, P.

    2012-10-01

    In-use and laboratory-derived fuel economies were analyzed for a medium-duty hybrid electric drivetrain with 'engine off at idle' capability and a conventional drivetrain in a typical commercial package delivery application. Vehicles studied included eleven 2010 Freightliner P100H hybrids in service at a United Parcel Service facility in Minneapolis during the first half of 2010. The hybrids were evaluated for 18 months against eleven 2010 Freightliner P100D diesels at the same facility. Both vehicle groups use the same 2009 Cummins ISB 200-HP engine. In-use fuel economy was evaluated using UPS's fueling and mileage records, periodic ECM image downloads, and J1939 CAN bus recordings during the periods of duty cycle study. Analysis of the in-use fuel economy showed 13%-29% hybrid advantage depending on measurement method, and a delivery route assignment analysis showed 13%-26% hybrid advantage on the less kinetically intense original diesel route assignments and 20%-33% hybrid advantage on the more kinetically intense original hybrid route assignments. Three standardized laboratory drive cycles were selected that encompassed the range of real-world in-use data. The hybrid vehicle demonstrated improvements in ton-mi./gal fuel economy of 39%, 45%, and 21% on the NYC Comp, HTUF Class 4, and CARB HHDDT test cycles, respectively.

  1. Energy Department Announces $60 Million to Drive Affordable,...

    Office of Environmental Management (EM)

    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 ...

  2. 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 ...

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

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

    Motor and Drive System Performance - A Sourcebook for Industry Improving Motor and Drive System Performance - A Sourcebook for Industry This sourcebook outlines opportunities to ...

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

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

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

  5. 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 ...

  6. 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 ...

  7. Technology Test Drive: PNNL Offers Exploratory Licenses | Department...

    Office of Environmental Management (EM)

    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 ...

  8. Secretary Moniz Announces New Biofuels Projects to Drive Cost...

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

    New Biofuels Projects to Drive Cost Reductions, Technological Breakthroughs Secretary Moniz Announces New Biofuels Projects to Drive Cost Reductions, Technological Breakthroughs ...

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

    Energy Savers [EERE]

    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 - ...

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

    Energy Savers [EERE]

    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 ...

  11. Energy Upgrade California Drives Demand From Behind the Wheel...

    Energy Savers [EERE]

    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 ...

  12. Energy Department Announces $19 Million to Drive Down Solar Soft...

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

    9 Million to Drive Down Solar Soft Costs, Increase Hardware Efficiency Energy Department Announces 19 Million to Drive Down Solar Soft Costs, Increase Hardware Efficiency November ...

  13. 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 ...

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

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

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

  15. 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) ...

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

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

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

  17. 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 ...

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

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

  19. 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 ...

  20. 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 ...

  1. 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 ...

  2. 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 ...

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

    Open Energy Info (EERE)

    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...

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

    Energy Savers [EERE]

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

  5. 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 ...

  6. Energy Department Announces $60 Million to Drive Affordable,...

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

    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 ...

  7. 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 ...

  8. 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 ...

  9. 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 ...

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

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

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

  11. 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 ...

  12. What Drives U.S. Gasoline Prices?

    U.S. 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

  13. 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 Communications Manager, Clean Cities Program 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.

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

    Broader source: Energy.gov [DOE]

    U.S. DRIVE roadmaps and previous accomplishments reports are available for reference and information.

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

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    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

  16. 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

  17. 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

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

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

    Report | Department of Energy U.S. DRIVE 2013 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

  19. Technology Test Drive: PNNL Offers Exploratory Licenses

    Office of Energy Efficiency and Renewable Energy (EERE)

    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 Laboratory.

  20. Oscillation control system for electric motor drive

    DOE Patents [OSTI]

    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.

  1. Oscillation control system for electric motor drive

    DOE Patents [OSTI]

    Slicker, J.M.; Sereshteh, A.

    1988-08-30

    A feedback system for controlling mechanical oscillations in the torsionally complaint drive train of an electric or other vehicle. Motor speed is converted in a processor to estimate state signals in which a plant model which are used to electronically modify the torque commands applied to the motor. 5 figs.

  2. QER- Comment of Electric Drive Transportation Association

    Broader source: 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

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

    SciTech Connect (OSTI)

    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.

  4. Drive piston assembly for a valve actuator assembly

    DOE Patents [OSTI]

    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.

  5. Integrated Inverter For Driving Multiple Electric Machines

    DOE Patents [OSTI]

    Su, Gui-Jia [Knoxville, TN; Hsu, John S [Oak Ridge, TN

    2006-04-04

    An electric machine drive (50) has a plurality of inverters (50a, 50b) for controlling respective electric machines (57, 62), which may include a three-phase main traction machine (57) and two-phase accessory machines (62) in a hybrid or electric vehicle. The drive (50) has a common control section (53, 54) for controlling the plurality of inverters (50a, 50b) with only one microelectronic processor (54) for controlling the plurality of inverters (50a, 50b), only one gate driver circuit (53) for controlling conduction of semiconductor switches (S1-S10) in the plurality of inverters (50a, 50b), and also includes a common dc bus (70), a common dc bus filtering capacitor (C1) and a common dc bus voltage sensor (67). The electric machines (57, 62) may be synchronous machines, induction machines, or PM machines and may be operated in a motoring mode or a generating mode.

  6. MEDIUM VOLTAGE INTEGRATED DRIVE AND MOTOR

    Broader source: Energy.gov [DOE]

    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 achieve up to eight times the power density of similar traditional systems. Fact sheet coming soon.

  7. NEUTRONIC REACTOR CONTROL ROD DRIVE APPARATUS

    DOE Patents [OSTI]

    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.

  8. Heating and current drive systems for TPX

    SciTech Connect (OSTI)

    Swain, D.; Goranson, P.; Halle, A. von; Bernabei, S.; Greenough, N.

    1994-05-24

    The heating and current drive (H and CD) system proposed for the TPX tokamak will consist of ion cyclotron, neutral beam, and lower hybrid systems. It will have 17.5 MW of installed H and CD power initially, and can be upgraded to 45 MW. It will be used to explore advanced confinement and fully current-driven plasma regimes with pulse lengths of up to 1,000 s.

  9. Collaboration drives achievement in protein structure research

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

    Protein structure research 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. September 15, 2014 Thomas Terwilliger Thomas Terwilliger Contact Nancy Ambrosiano Communications Office (505) 667-0471 Email "It is tremendously exciting working with researchers around the world, helping them apply the software and algorithms that we have developed to

  10. Improving Motor and Drive System Performance

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

    SOURCEBOOK FOR INDUSTRY ADVANCED MANUFACTURING OFFICE Improving Motor and Drive System Performance DISCLAIMER This publication was prepared by the Washington State University Energy Program and the National Renewable Energy Laboratory for the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy. Neither the United States, DOE, the Copper Development Association, the Washington State University Energy Program, National Electrical Manufacturers Association, nor any of their

  11. Quasi-spherical direct drive fusion.

    SciTech Connect (OSTI)

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

    2007-01-01

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

  12. Fast wave current drive in DEMO

    SciTech Connect (OSTI)

    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.

  13. Oak Ridge Institutional Cluster Autotune Test Drive Report

    SciTech Connect (OSTI)

    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.

  14. Energy Department Announces $53 Million to Drive Innovation,...

    Energy Savers [EERE]

    53 Million to Drive Innovation, Cut Cost of Solar Power Energy Department Announces 53 Million to Drive Innovation, Cut Cost of Solar Power October 22, 2014 - 1:15am Addthis News ...

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

    Open Energy Info (EERE)

    handle all of the details related to sending incentives, provide real time status of offer accepts, and validate points earned. The DRIVE System includes the DRIVE App as a fun...

  16. 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 ...

  17. 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 ...

  18. 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.

  19. Energy Department Announces New Prize Challenge to Drive Down...

    Energy Savers [EERE]

    Prize Challenge to Drive Down Solar Costs Energy Department Announces New Prize Challenge to Drive Down Solar Costs May 20, 2014 - 12:34pm Addthis To kick off the SunShot ...

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

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

  1. 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 ...

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

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

    Adv SI Adv CI SI HEV SI PHEV10 SI PHEV40 BEV100 BEV300 Levelized cost of driving, 2011mile Fuel Cost (NPV) Drive, Wheels, Tires, 12V Battery Transmission Generator Motor Energy ...

  3. Secrets of the Motor That Drives Archaea Revealed

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

    Secrets of the Motor That Drives Archaea Revealed Secrets of the Motor That Drives Archaea Revealed Print Thursday, 14 February 2013 00:00 An international team led by John Tainer...

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

    Broader source: Energy.gov [DOE]

    According to the National Household Travel Survey, those living in rural areas drive ten more miles in a day than those who live in cities. People living in the suburbs drive only about three to...

  6. Using Partnerships to Drive Demand and Provide Services in Communities |

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

    Department of Energy Partnerships to Drive Demand and Provide Services in Communities Using Partnerships to Drive Demand and Provide Services in Communities Better Buildings Neighborhood Program Multifamily and Low-Income Peer Exchange Call: Using Partnerships to Drive Demand and Provide Services in Communities, February 2, 2012. Call Slides and Discussion Summary (1.47 MB) More Documents & Publications Strategies for Marketing and Driving Demand for Commercial Financing Products

  7. 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

  8. 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

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

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

    Report | Department of Energy 5 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 Vehicle

  10. Marketing & Driving Demand Collaborative - Social Media Tools & Strategies

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

    | Department of Energy & Driving Demand Collaborative - Social Media Tools & Strategies Marketing & Driving Demand Collaborative - Social Media Tools & Strategies Presentation slides from the Better Buildings webinar on January 6, 2011. Marketing & Driving Demand Collaborative (985.44 KB) More Documents & Publications Using Social Media for Long-Term Branding Marketing & Driving Demand: Social Media Tools & Strategies - January 16, 2011 (Text Version)

  11. 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

  12. Vehicle Technologies Office: Electric Drive Systems Research and

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

    Development | Department of Energy Plug-in Electric Vehicles & Batteries » Vehicle Technologies Office: Electric Drive Systems Research and Development Vehicle Technologies Office: Electric Drive Systems Research and Development Vehicle Technologies Office: Electric Drive Systems Research and Development Electric drive technologies, including the electric motor, inverter, boost converter, and on-board charger, are essential components of hybrid and plug-in electric vehicles (PEV)

  13. US DRIVE Vehicle Systems and Analysis Technical Team Roadmap | Department

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

    of Energy Vehicle Systems and Analysis Technical Team Roadmap US DRIVE Vehicle Systems and Analysis Technical Team Roadmap 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. vsatt_roadmap_june2013.pdf (663.74 KB) More Documents & Publications US DRIVE Driving Research and Innovation for Vehicle Efficiency and Energy Sustainability

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

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

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

  15. Oscillatory nonhmic current drive for maintaining a plasma current

    DOE Patents [OSTI]

    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.

  16. Oscillatory nonohomic current drive for maintaining a plasma current

    DOE Patents [OSTI]

    Fisch, N.J.

    1984-01-01

    Apparatus and methods are described for maintaining a plasma current with an oscillatory nonohmic current drive. Each cycle of operation has a generation period in which current driving energy is applied to the plasma, and a relaxation period in which current driving energy is removed. Plasma parameters, such as plasma temperature or plasma average ionic charge state, are modified during the generation period so as to oscillate plasma resistivity in synchronism with the application of current driving energy. The invention improves overall current drive efficiencies.

  17. 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...

  18. Fact #696: October 10, 2011 Top Ten "Real World" Fuel Economy Leaders

    Broader source: Energy.gov [DOE]

    The Environmental Protection Agency (EPA) fuel economy ratings on the window stickers of new cars are based on strict test cycles conducted in a controlled laboratory setting. These official EPA...

  19. Argonne researchers use real-world data to model the effect of...

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

    makes the process trickier because these kinds of installations can't supply power on command. Thus, as they add more renewable energy to the mix, utilities have to increase...

  20. Solar in the Real World: Tour of Solar Homes Begins in October

    Broader source: Energy.gov [DOE]

    The National Solar Tour takes place annually during the first Saturday in October in conjunction with National Energy Awareness Month.

  1. Transportation Secure Data Center: Real-World Data for Value Pricing and Tolling Research (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-01-01

    The National Renewable Energy Laboratory (NREL) and the U.S. Department of Transportation (DOT) have launched the free, web-based Transportation Secure Data Center (TSDC). The TSDC (www.nrel.gov/tsdc) preserves respondent anonymity while making vital transportation data available to a broad group of users through secure, online access. The TSDC database provides free-of-charge web-based access to valuable transportation data that can be used for: Location and time-of-day variable tolling research, Mileage-based fee analysis, Travel demand modeling and transit planning, Congestion mitigation research, and Validating transportation data from other sources. The TSDC's two levels of access make composite data available with simple online registration, and allow researchers to use detailed spatial data after completing a straight forward application process.

  2. Transportation Secure Data Center: Real-World Data for Environmental and Air Quality Analysis (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-01-01

    The National Renewable Energy Laboratory (NREL) and the U.S. Department of Transportation (DOT) have launched the free, web-based Transportation Secure Data Center (TSDC). The TSDC (www.nrel.gov/tsdc) preserves respondent anonymity while making vital transportation data available to a broad group of users through secure, online access. The TSDC database provides free-of-charge web-based access to valuable transportation data that can be used for: Emissions and air pollution modeling, Vehicle energy and power analysis, Climate change impact studies, Alternative fuel station planning, and Validating transportation data from other sources. The TSDC's two levels of access make composite data available with simple online registration, and allow researchers to use detailed spatial data after completing a straight forward application process.

  3. Transportation Secure Data Center: Real-World Data for Planning, Modeling and Analysis (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-01-01

    The National Renewable Energy Laboratory (NREL) and the U.S. Department of Transportation (DOT) have launched the free, web-based Transportation Secure Data Center (TSDC). The TSDC (www.nrel.gov/tsdc) preserves respondent anonymity while making vital transportation data available to a broad group of users through secure, online access. The TSDC database gives, metropolitan planning organizations, universities, national laboratories, air quality management districts, disaster planning agencies and auto manufacturers free-of-charge web-based access to valuable transportation data. The TSDC's two levels of access make composite data available with simple online registration, and allow researchers to use detailed spatial data after completing a straight forward application process.

  4. Measurement of Real-World Emissions from Heavy-Duty Diesel Vehicles...

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

    Evaluation of NTE Windows and a Work-Based Method to Determine In-Use Emissions of a Heavy-Duty Diesel Engine Reduction of Emissions from a High Speed Ferry Heavy-Duty Truck ...

  5. DOE's Hydrogen Fuel Cell Activities: Developing Technology and Validating it through Real-World Evaluation (Presentation)

    SciTech Connect (OSTI)

    Wipke, K.; Sprik, S.; Kurtz, J.; Garbak, J.

    2008-05-12

    Presentation prepared for the May 12, 2008 Alternative Fuels and Vehicles Conference that describes DOE's current hydrogen fuel cell technology validation projects.

  6. Transportation Secure Data Center: Real-World Data for Planning, Modeling, and Analysis (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-01-01

    This fact sheet describes the Transportation Secure Data Center (TSDC) - an NREL-operated resource that provides secure access to detailed GPS travel data for valuable research purposes in a way that protects original participant privacy.

  7. Building America Webinar: Building America: Research for Real-World Results

    Broader source: Energy.gov [DOE]

    For 20 years, the U.S. Department of Energy’s (DOE) Building America program has been a source of innovations for high performance homes. Join Eric Werling, Building America Program Coordinator,...

  8. Transportation Secure Data Center: Real-world Data for Planning, Modeling, and Analysis (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01

    The Transportation Secure Data Center (TSDC) at www.nrel.gov/tsdc provides free, web-based access to detailed transportation data from a variety of travel surveys conducted across the nation. While preserving the privacy of survey participants, this online repository makes vital transportation data broadly available to users from the comfort of their own desks via a secure online connection.

  9. Vehicle Technologies Office Merit Review 2016: Analyzing Real-World Light Duty Vehicle Efficiency Benefits

    Office of Energy Efficiency and Renewable Energy (EERE)

    Presentation given by National Renewable Energy Laboratory (NREL) at the 2016 DOE Vehicle Technologies Office and Hydrogen and Fuel Cells Program Annual Merit Review and Peer Evaluation Meeting...

  10. Real-World Studies of Ambient Ozone Formation as a Function of...

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

    More Documents & Publications Weekday and Weekend Air Pollutant Levels in Ozone Problem Areas in the U.S. DOE's Studies of WeekdayWeekend Ozone Pollution in Southern California ...

  11. Substantive scientific and technical guidance for NEPA analysis: Pitfalls in the real world

    SciTech Connect (OSTI)

    Dickerson, W. . Office of Federal Activities); Montgomery, J. . Environmental Programs Branch)

    1993-01-01

    The issue of how to improve the science in environmental impact statements (EISs) and the National Environmental Policy Act (NEPA) process has been receiving increased attention during the last decade. Based on review of several studies on prediction in NEPA reviews and their own professional experience, the authors conclude that the NEPA process is reasonably effective in producing useful predictions of impact. However, the federal government could take steps to upgrade the quality of scientific analysis in the NEPA process, particularly in addressing issues where the state of scientific knowledge is uncertain. These steps include increased peer review of NEPA documents, more oversight of NEPA implementation, and refinement and development of various methodologies and technical guidance.

  12. Approaching the exa-scale: a real-world evaluation of rendering extremely large data sets

    SciTech Connect (OSTI)

    Patchett, John M; Ahrens, James P; Lo, Li - Ta; Browniee, Carson S; Mitchell, Christopher J; Hansen, Chuck

    2010-10-15

    Extremely large scale analysis is becoming increasingly important as supercomputers and their simulations move from petascale to exascale. The lack of dedicated hardware acceleration for rendering on today's supercomputing platforms motivates our detailed evaluation of the possibility of interactive rendering on the supercomputer. In order to facilitate our understanding of rendering on the supercomputing platform, we focus on scalability of rendering algorithms and architecture envisioned for exascale datasets. To understand tradeoffs for dealing with extremely large datasets, we compare three different rendering algorithms for large polygonal data: software based ray tracing, software based rasterization and hardware accelerated rasterization. We present a case study of strong and weak scaling of rendering extremely large data on both GPU and CPU based parallel supercomputers using Para View, a parallel visualization tool. Wc use three different data sets: two synthetic and one from a scientific application. At an extreme scale, algorithmic rendering choices make a difference and should be considered while approaching exascale computing, visualization, and analysis. We find software based ray-tracing offers a viable approach for scalable rendering of the projected future massive data sizes.

  13. Vehicle drive module having improved terminal design

    DOE Patents [OSTI]

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

    2006-04-25

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

  14. Vehicle drive module having improved EMI shielding

    DOE Patents [OSTI]

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

    2006-11-28

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

  15. Vehicle drive module having improved cooling configuration

    DOE Patents [OSTI]

    Radosevich, Lawrence D.; Meyer, Andreas A.; Kannenberg, Daniel G.; Kaishian, Steven C.; Beihoff, Bruce C.

    2007-02-13

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

  16. Gas turbine CHP leads Italy`s energy drive

    SciTech Connect (OSTI)

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

    DOE Patents [OSTI]

    Tamai, Goro; Zhou, Jing; Weslati, Feisel

    2014-09-02

    An indicator, system and method of indicating electric drive usability in a hybrid electric vehicle. A tachometer is used that includes a display having an all-electric drive portion and a hybrid drive portion. The all-electric drive portion and the hybrid drive portion share a first boundary which indicates a minimum electric drive usability and a beginning of hybrid drive operation of the vehicle. The indicated level of electric drive usability is derived from at least one of a percent battery discharge, a percent maximum torque provided by the electric drive, and a percent electric drive to hybrid drive operating cost for the hybrid electric vehicle.

  18. Traction drive automatic transmission for gas turbine engine driveline

    DOE Patents [OSTI]

    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.

  19. 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

  20. Electric Drive and Advanced Battery and Components Testbed (EDAB) |

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

    Department of Energy 2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting vss033_carlson_2012_o.pdf (1.13 MB) More Documents & Publications Electric Drive and Advanced Battery and Components Testbed (EDAB) Vehicle Technologies Office Merit Review 2014: Electric Drive and Advanced Battery and Components Testbed (EDAB) Electric Drive and Advanced Battery Department of Energy

    1 DOE Hydrogen and Fuel Cells Program, and

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

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

  2. U.S. DRIVE Technical Team Technology Roadmaps

    SciTech Connect (OSTI)

    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.

  3. Electromagnetically induced transparency with a partially standing drive field

    SciTech Connect (OSTI)

    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.

  4. 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

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

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

    Competitiveness | Department of Energy EERE National Lab Impact Summit: Driving American Energy Innovation and Competitiveness EERE National Lab Impact Summit: Driving American Energy Innovation and Competitiveness Download the program for the EERE National Lab Impact Summit held May 4, 2016, at the National Renewable Energy Laboratory in Golden, Colorado. EERE Lab Impact Summit Brochure Cover Image EERE National Lab Impact Summit: Driving American Energy Innovation and Competitiveness (4.24

  6. 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

  7. 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

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

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

    focused on a key area of the U.S. DRIVE portfolio (see below). These teams convene the best and brightest scientists and engineers from U.S. DRIVE partner organizations to discuss key technical challenges, identify possible solutions, and evaluate progress toward goals and targets published in technology roadmaps. More recently, to complement its technical teams, U.S. DRIVE established two working groups: (1) cradle-to-grave analysis, identified as critical to better understanding the potential

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

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

    focused on a key area of the U.S. DRIVE portfolio (see below). These teams convene the best and brightest scientists and engineers from U.S. DRIVE partner organizations to discuss key technical challenges, identify possible solutions, and evaluate progress toward goals and targets published in technology roadmaps. U.S. DRIVE also has two working groups: (1) cradle-to-grave analysis, identified as critical to better understanding the potential benefits of various technology pathways and alignment

  10. Vehicle Technologies Office Merit Review 2014: Electric Drive and Advanced

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

    Battery and Components Testbed (EDAB) | Department of Energy Electric Drive and Advanced Battery and Components Testbed (EDAB) Vehicle Technologies Office Merit Review 2014: Electric Drive and Advanced Battery and Components Testbed (EDAB) Presentation given by Idaho National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about Electric Drive and Advanced Battery and Components Testbed (EDAB).

  11. 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

  12. 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

  13. 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

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

    Broader source: Energy.gov [DOE]

    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.

  15. 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 ...

  16. Electrical motor/generator drive apparatus and method

    DOE Patents [OSTI]

    Su, Gui Jia

    2013-02-12

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

  17. 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

  18. 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.

  19. 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...

  20. 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...

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

    Broader source: Energy.gov [DOE]

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

  2. Gift tag drive benefits local children and seniors

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

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

    Open Energy Info (EERE)

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

  4. 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 ... at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit ...

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

    Open Energy Info (EERE)

    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...

  6. 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 ...

  7. DOE Campaign Proves Commercial Lighting Upgrades Drive Savings...

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

    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 ...

  8. X-Ray Microscopy Reveals How Crystal Mechanics Drive Battery...

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

    X-Ray Microscopy Reveals How Crystal Mechanics Drive Battery Performance Print ... are one of the best performing battery electrode materials, able to repeatedly ...

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

    Open Energy Info (EERE)

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

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

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

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

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

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

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

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

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

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

  13. 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, ...

  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 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer ...

  15. 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 ...

  16. 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 ...

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

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

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

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

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

    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 ...

  19. Multi-function magnetic jack control drive mechanism

    DOE Patents [OSTI]

    Bollinger, L.R.; Crawford, D.C.

    1983-10-06

    A multi-function magnetic jack control drive mechanism for controlling a nuclear reactor is provided. The mechanism includes an elongate pressure housing in which a plurality of closely spaced drive rods are located. Each drive rod is connected to a rod which is insertable in the reactor core. An electromechanical stationary latch device is provided which is actuatable to hold each drive rod stationary with respect to the pressure housing. An electromechanical movable latch device is also provided for each one of the drive rods. Each movable latch device is provided with a base and is actuatable to hold a respective drive rod stationary with respect to the base. An electromechanical lift device is further provided for each base which is actuatable for moving a respective base longitudinally along the pressure housing. In this manner, one or more drive rods can be moved in the pressure housing by sequentially and repetitively operating the electromechanical devices. Preferably, each latch device includes a pair of opposed latches which grip teeth located on the respective drive rod. Two, three, or four drive rods can be located symmetrically about the longitudinal axis of the pressure housing.

  20. Multi-function magnetic jack control drive mechanism

    DOE Patents [OSTI]

    Bollinger, Lawrence R. (Schenectady, NY); Crawford, Donald C. (Scotia, NY)

    1986-01-01

    A multi-function magnetic jack control drive mechanism for controlling a nuclear reactor is provided. The mechanism includes an elongate pressure housing in which a plurality of closely spaced drive rods are located. Each drive rod is connected to a rod which is insertable in the reactor core. An electromechanical stationary latch device is provided which is actuatable to hold each drive rod stationary with respect to the pressure housing. An electromechanical movable latch device is also provided for each one of the drive rods. Each movable latch device is provided with a base and is actuatable to hold a respective drive rod stationary with respect to the base. An electromechanical lift device is further provided for each base which is actuatable for moving a respective base longitudinally along the pressure housing. In this manner, one or more drive rods can be moved in the pressure housing by sequentially and repetitively operating the electromechanical devices. Preferably, each latch device includes a pair of opposed latches which grip teeth located on the respective drive rod. Two, three, or four drive rods can be located symmetrically about the longitudinal axis of the pressure housing.

  1. 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 ...

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

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

    Critical Factors Driving the High Volumetric Uptake of Methane in Cu-3(btc)(2) Previous Next List Hulvey, Zeric; Vlaisavljevich, Bess; Mason, Jarad A.; Tsivion, Ehud; Dougherty,...

  3. 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

  4. U.S. DRIVE Highlights of Technical Accomplishments 2011 | Department...

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

    report issued by U.S. DRIVE provides an overview of the various Technical Team accomplishments from 2011 2011usdriveaccomplishmentsrpt.pdf (7.22 MB) More Documents & ...

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

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

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

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

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

    program - driving unleaded gasoline nationwide in US 1970: GM introduces no lead tolerant engines on all 1971 models in US & Canada 3 Transportation is a growth industry...

  7. 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; ...

  8. 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 ...

  9. 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 ...

  10. 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) - ...

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

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

    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 ...

  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 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 ...

  14. 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 ...

  15. 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 ...

  16. US DRIVE Electrical and Electronics Technical Team Roadmap |...

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

    Electrical and Electronics Technical Team Roadmap US DRIVE Electrical and Electronics Technical Team Roadmap The EETT focuses on the development of economically viable ETDSs, which ...

  17. US DRIVE Hydrogen Storage Technical Team Roadmap | Department...

    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 ...

  18. Manganese Reduction-Oxidation Drives Plant Debris Decomposition

    Broader source: All U.S. Department of Energy (DOE) Office 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. Medium- and Heavy-Duty Electric Drive Vehicle Simulation and...

    Office of Environmental Management (EM)

    More Documents & Publications Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis Battery Pack Requirements and Targets Validation FY 2009 DOE Vehicle ...

  20. Decontamination of Terrorist-Dispersed Radionuclides from Surfaces in Urban Environments

    SciTech Connect (OSTI)

    Fischer, Robert; Sutton, Mark; Gates-Anderson, Dianne; Gray, Jeremy; Hu, Qinhong; McNab, Walt; Viani, Brian

    2008-01-15

    Research is currently underway at Lawrence Livermore National Laboratory (LLNL) to advance the basic scientific knowledge of radionuclide-substrate interactions in the urban environment. Investigations have focused on more optimized decontamination agents for cesium (Cs) and americium (Am) specifically for use in mass transit infrastructure and urban environments. This project is designed to enhance the capability of the United States to effectively respond to a Radiological Dispersal Device (RDD) attack. The work addresses recognized data gaps by advancing the basic scientific knowledge of radionuclide-substrate interactions in the urban environment and provides a solution to a national need. The research is focused in four major areas: (1) a better understanding of urban surface conditions that influence the efficacy of decontamination processes, (2) development of prototype decontamination agents for Am and Cs optimized for use in urban environments, (3) the development of capabilities to realistically contaminate surfaces at both the real world and laboratory scale and (4) a validated model for radionuclide-surface interactions. The decontamination of urban surfaces following the detonation of an RDD presents a number of challenges. The following key points are found to be critical for the efficiency of decontamination agents in an urban environment: - Particle size and surface deposition of radionuclide particles on urban surface materials. - Interactions between radionuclides and urban materials. - The presence of grime and carbonation/alteration layers on the surface of urban surfaces. - Post-detonation penetration of radionuclides strongly affected by the dynamic wetting/drying processes. A laboratory scale contamination system has been developed allowing for samples to be contaminated and radionuclide interactions to be studied. In combination with laboratory scale experiments, a real scale outdoor test is scheduled for the spring of 2007. In conclusion

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

    SciTech Connect (OSTI)

    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.

  2. Conceptual Design - Polar Drive Ignition Campaign

    SciTech Connect (OSTI)

    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

  3. Evaluation of 2004 Toyota Prius Hybrid Electric Drive System

    SciTech Connect (OSTI)

    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. Advanced insulated gate bipolar transistor gate drive

    DOE Patents [OSTI]

    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.

  5. Base drive and overlap protection circuit

    DOE Patents [OSTI]

    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).

  6. STATEOFNEWMEXICO ENVIRONMENT DEPARTMENT ENVIRONMENTAL HEALTH...

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

    STATEOFNEWMEXICO ENVIRONMENT DEPARTMENT ENVIRONMENTAL HEALTH DIVISION, HAZARDOUS WASTE ... OF NEW MEXICO BEFORE THE SECRETARY OF ENVIRONMENT NEW MEXICO ENVIRONMENT DEPARTMENT, ...

  7. COAXIAL CONTROL ROD DRIVE MECHANISM FOR NEUTRONIC REACTORS

    DOE Patents [OSTI]

    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.

  8. Electric Drive Transportation Association Conference | Department of Energy

    Broader source: Energy.gov (indexed) [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. 4_rogers_ed.pdf (1.3 MB) More Documents & Publications Power Electronics and Thermal Management Breakout Session Advanced Power Electronics and Electric Motors (APEEM) R&D Program Overview Advanced Power Electronics and Electric Motors (APEEM) R&D Program Overview

    Test Drive 1 of 5 Test Drive Deputy

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

    DOE Patents [OSTI]

    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.

  10. Scaling of lower hybrid current drive with temperature

    SciTech Connect (OSTI)

    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.

  11. JLab to host Red Cross Blood Drive | Jefferson Lab

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

    to host Red Cross Blood Drive JLab to host Red Cross Blood Drive on Aug. 16 The next American Red Cross Blood Drive taking place at Jefferson Lab will be held on Tuesday, Aug. 16, from 10 a.m. to 4 p.m. in CEBAF Center, Room F113. New and repeat donors are encouraged to attend. Walk-ins are welcome. All participation is appreciated as the Red Cross has a significant blood shortage. Please visit this webpage for eligibility requirements:

  12. A Review of Tribological Coatings for Control Drive Mechanisms in Space Reactors

    SciTech Connect (OSTI)

    CJ Larkin; JD Edington; BJ Close

    2006-02-21

    Tribological coatings must provide lubrication for moving components of the control drive mechanism for a space reactor and prevent seizing due to friction or diffusion welding to provide highly reliable and precise control of reflector position over the mission lifetime. Several coatings were evaluated based on tribological performance at elevated temperatures and in ultrahigh vacuum environments. Candidates with proven performance in the anticipated environment are limited primarily to disulfide materials. Irradiation data for these coatings is nonexistent. Compatibility issues between coating materials and structural components may require the use of barrier layers between the solid lubricant and structural components to prevent deleterious interactions. It would be advisable to consider possible lubricant interactions prior to down-selection of structural materials. A battery of tests was proposed to provide the necessary data for eventual solid lubricant/coating selection.

  13. Driving Research in Electric Machines |GE Global Research

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

  14. EV Everywhere Electric Drive Workshop: Preliminary Target-Setting Framework

    Broader source: 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.

  15. 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.

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

    Open Energy Info (EERE)

    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...

  17. 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 ...

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

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

    extremely receptive to expanding the use of the sub-meter data to drive decision making. ... Amp meter used at a Trenton, Michigan, plant to gather data on electrical usage. Courtesy ...

  19. EM modeling of RF drive in DTL tank 4

    SciTech Connect (OSTI)

    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.

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

    Broader source: 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.

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

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

  2. EV Everywhere Grand Challenge Introduction for Electric Drive Workshop

    Broader source: 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.

  3. Approach to Developing Predictive Capability for Hohlraum Drive and Symmetry

    SciTech Connect (OSTI)

    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.

  4. 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. ; ...

  5. 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...

  6. #LabChat: Innovations Driving More Efficient Vehicles, Dec. 13...

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

    ... 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 ...

  7. Bagdad Plant Raymond J. Polinski 585 Silicon Drive General Manager

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

    Bagdad Plant Raymond J. Polinski 585 Silicon Drive General Manager Leechburg, PA 15656 Grain-Oriented Electrical Steel e-mail: Raymond.Polinski@ATImetals.com E. Below are Allegheny ...

  8. Climate Control Load Reduction Strategies for Electric Drive...

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

  9. Environment | Department of Energy

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

    Environment Environment Environment The U. S. Department of Energy (DOE) complies with all applicable environmental laws and regulations and establishes its own environmental requirements to ensure workers, the public, and the environment is protected from hazards associated with all Department operations. DOE provides assistance to the field to implement these policies, works in resolving environmental protection issues, and provides feedback to enhance environmental performance throughout the

  10. Sustainable Transportation Day Drives Innovation Forward | Department of

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

    Energy Sustainable Transportation Day Drives Innovation Forward Sustainable Transportation Day Drives Innovation Forward June 24, 2015 - 3:29pm Addthis Sustainable Trucking 1 of 13 Sustainable Trucking The Freightliner SuperTruck stopped by Energy Department headquarters as part of Sustainable Transportation Day on Monday, June 22, 2015. The Energy Department-supported truck has achieved a fuel efficiency of 12.2 miles per gallon, more than double that of the baseline vehicle. Image: Matt

  11. Ride and Drive Evaluation Results | Department of Energy

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

    Ride and Drive Evaluation Results Ride and Drive Evaluation Results 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: U.S. Department of Energy 2004_deer_howden.pdf (110.89 KB) More Documents & Publications Enhancing Transportation Energy Security through Advanced Combustion and Fuels Technologies Evaluating Exhaust Emission Performance of Urban Buses Using Transient Heavy-Duty Chassis Dynamometer Diesel Engines: What Role Can They Play in an Emissions-Constrained World?

  12. 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

  13. Advanced Electric Drive Vehicles … A Comprehensive Education, Training,

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

    and Outreach Program | Department of Energy 2 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 Program Advanced Electric Drive Vehicles … A Comprehensive Education, Training, and Outreach Program US-India S&T Agreement

  14. Advanced Electric Drive Vehicles … A Comprehensive Education, Training,

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

    and Outreach Program | Department of Energy 1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation arravt034_ti_ferdowsi_2011_p.pdf (190.23 KB) More Documents & Publications Advanced Electric Drive Vehicles … A Comprehensive Education, Training, and Outreach Program Advanced Electric Drive Vehicles … A Comprehensive Education, Training, and Outreach Program EcoCAR 2 Plugging into the Future

  15. AVTA: Battery Testing - Electric Drive and Advanced Battery and Components

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

    Testbed | Department of Energy Battery Testing - Electric Drive and Advanced Battery and Components Testbed AVTA: Battery Testing - Electric Drive and Advanced Battery and Components Testbed The Vehicle Technologies Office's Advanced Vehicle Testing Activity carries out testing on a wide range of advanced vehicles and technologies on dynamometers, closed test tracks, and on-the-road. These results provide benchmark data that researchers can use to develop technology models and guide future

  16. The drive toward hydrogen vehicles just got shorter

    Broader source: All U.S. Department of Energy (DOE) Office 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 hydrogen storage compound ammonia borane. March 21, 2011 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials Los

  17. Energy Department Announces $60 Million to Drive Affordable, Efficient

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

    Solar Power | Department of Energy 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 Department's

  18. 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

  19. Manganese Reduction-Oxidation Drives Plant Debris Decomposition

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

    Manganese Reduction-Oxidation Drives Plant Debris Decomposition Manganese Reduction-Oxidation Drives Plant Debris Decomposition Print Monday, 22 February 2016 00:00 Microbial decomposition of plant debris ("litter") is a keystone ecosystem process because it regulates nutrient availability, ecosystem productivity, and carbon (C) cycling. Historically, climate (primarily temperature and precipitation) has been thought to regulate the rate of litter decomposition, which then influences

  20. Students' Clean Tech Projects: Driving Commercial Success | Department of

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

    Energy Students' Clean Tech Projects: Driving Commercial Success Students' Clean Tech Projects: Driving Commercial Success October 6, 2011 - 3:20pm Addthis UCSD Ph.D. candidate (structural engineering) and von Liebig Fellow Arun Manohar demonstrates unique Enhanced Infrared Thermography algorithm to identify structural defects in composite wind turbine plates. | Image Courtesy of the San Diego Renewable Energy Fellowship. UCSD Ph.D. candidate (structural engineering) and von Liebig Fellow

  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 Better Buildings 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

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

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

    Efficiency, Save Money | Department of Energy Thirteen States Receive Energy Department Awards to Drive Greater Energy Efficiency, Save Money Thirteen States Receive Energy Department Awards to Drive Greater Energy Efficiency, Save Money November 26, 2013 - 2:44pm Addthis News Media Contact (202) 586-4940 WASHINGTON - Building on the Obama Administration's efforts to double energy productivity by 2030 and help communities save on energy bills, the Energy Department today awarded nearly $4

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

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

    Efficiency, Save Money | Department of Energy Thirteen States Receive Energy Department Awards to Drive Greater Energy Efficiency, Save Money Thirteen States Receive Energy Department Awards to Drive Greater Energy Efficiency, Save Money November 26, 2013 - 12:00am Addthis Building on the Obama Administration's efforts to double energy productivity by 2030 and help communities save on energy bills, the Energy Department today awarded nearly $4 million to 13 states to increase statewide

  4. US DRIVE Electrochemical Energy Storage Technical Team Roadmap | Department

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

    of Energy Electrochemical Energy Storage Technical Team Roadmap US DRIVE Electrochemical Energy Storage Technical Team Roadmap This U.S. DRIVE electrochemical energy storage roadmap describes ongoing and planned efforts to develop electrochemical energy storage technologies for plug-in electric vehicles (PEVs). The Energy Storage activity comprises a number of research areas (including advanced materials research, cell level research, battery development, and enabling R&D which includes

  5. How Exhaust Emissions Drive Diesel Engine Fuel Efficiency | Department of

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

    Energy How Exhaust Emissions Drive Diesel Engine Fuel Efficiency How Exhaust Emissions Drive Diesel Engine Fuel Efficiency 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Pacific Northwest Laboratory 2004_deer_muntean.pdf (922.09 KB) More Documents & Publications The State of the Science in Diesel Particulate Control APBF-DEC Heavy Duty NOx Adsorber/DPF Project: Heavy Duty Linehaul Platform Project Update Measurement and Characterization of Lean NOx Adsorber

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

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

  7. Computing environment logbook

    DOE Patents [OSTI]

    Osbourn, Gordon C; Bouchard, Ann M

    2012-09-18

    A computing environment logbook logs events occurring within a computing environment. The events are displayed as a history of past events within the logbook of the computing environment. The logbook provides search functionality to search through the history of past events to find one or more selected past events, and further, enables an undo of the one or more selected past events.

  8. 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 ...

  9. 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...

  10. Is it Cost-Effective to Replace Old Eddy-Current Drives? - Motor Tip Sheet #12

    SciTech Connect (OSTI)

    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.

  11. 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 ...

  12. 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 ...

  13. Adiabat-shaping in indirect drive inertial confinement fusion

    SciTech Connect (OSTI)

    Baker, K. L.; Robey, H. F.; Milovich, J. L.; Jones, O. S.; Smalyuk, V. A.; Casey, D. T.; MacPhee, A. G.; Pak, A.; Celliers, P. M.; Clark, D. S.; Landen, O. L.; Peterson, J. L.; Berzak-Hopkins, L. F.; Weber, C. R.; Haan, S. W.; Dppner, T. D.; Dixit, S.; Hamza, A. V.; Jancaitis, K. S.; Kroll, J. J.; and others

    2015-05-15

    Adiabat-shaping techniques were investigated in indirect drive inertial confinement fusion experiments on the National Ignition Facility as a means to improve implosion stability, while still maintaining a low adiabat in the fuel. Adiabat-shaping was accomplished in these indirect drive experiments by altering the ratio of the picket and trough energies in the laser pulse shape, thus driving a decaying first shock in the ablator. This decaying first shock is designed to place the ablation front on a high adiabat while keeping the fuel on a low adiabat. These experiments were conducted using the keyhole experimental platform for both three and four shock laser pulses. This platform enabled direct measurement of the shock velocities driven in the glow-discharge polymer capsule and in the liquid deuterium, the surrogate fuel for a DT ignition target. The measured shock velocities and radiation drive histories are compared to previous three and four shock laser pulses. This comparison indicates that in the case of adiabat shaping the ablation front initially drives a high shock velocity, and therefore, a high shock pressure and adiabat. The shock then decays as it travels through the ablator to pressures similar to the original low-adiabat pulses when it reaches the fuel. This approach takes advantage of initial high ablation velocity, which favors stability, and high-compression, which favors high stagnation pressures.

  14. Modules Software Environment

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

    Environment » Modules Environment Modules Software Environment NERSC uses the module utility to manage nearly all software. There are two huge advantages of the module approach: NERSC can provide many different versions and/or installations of a single software package on a given machine, including a default version as well as several older and newer versions; and Users can easily switch to different versions or installations without having to explicitly specify different paths. With modules,

  15. STAR Test Environment

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

    STAR Test Environment STAR Test Environment These instructions describe how to set up the STAR environment independent of the production environment in order to test different installations in $OPTSTAR and $GROUP_DIR. If you want to modify those installations you will need access to the starofl account. Bypass STAR envionment login Edit your ~/.pdsf_setup file changing the STAR_LINUX_SETUP to "use_none" and start a new session. You should not see all the STAR environmental variables

  16. XML Engineering Environment

    Energy Science and Technology Software Center (OSTI)

    2006-07-27

    The XML Engineering Environment is a reconfigurable software system that allows users to translate, enhance and route data from sources to sinks.

  17. Events & Topics in Renewable Energy & the Environment | Photosynthetic

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

    Antenna Research Center Events & Topics in Renewable Energy & the Environment Events & Topics in Renewable Energy & the Environment Missouri MetroLink Facility April 12, 2016 - 4:00pm 700 S. Ewing, St. Louis, MO 63103 Event flyer RSVP here Free bus will depart from the front of Brookings Hall at 3:30 pm sharp and will return to the same location following the tour. If you plan to drive yourself, please contact Erin Plut (eplut@wustl.edu) for parking information and meet up

  18. Electric machine and current source inverter drive system

    DOE Patents [OSTI]

    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.

  19. Performance of wells in solution-gas-drive reservoirs

    SciTech Connect (OSTI)

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

    1989-12-01

    The authors examine buildup responses in solution-gas-drive reservoirs. The development presented here parallels the development for single-phase liquid flow. Analogs from pseudopressures and time transformations are presented and gas-drive-solutions are correlated with appropriate liquid-flow solutions. The influence of the skin region is documented. The basis for the success of the producing GOR method to compute the saturation distribution at shut-in is presented. The consequences of using the Perrine-Martin analog to analyze buildup data are discussed.

  20. Driving Sensing Technology in Oil & Gas | GE Global Research

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

    Newest APS Fellow Driving Groundbreaking Sensing Technology in Oil & Gas Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) Newest APS Fellow Driving Groundbreaking Sensing Technology in Oil & Gas Loucas Tsakalakos 2014.04.30 I'm writing to tell you all about a prestigious honor and a significant award that was

  1. Finite driving rate and anisotropy effects in landslide modeling

    SciTech Connect (OSTI)

    Piegari, E.; Cataudella, V.; Di Maio, R.; Milano, L.; Nicodemi, M.

    2006-02-15

    In order to characterize landslide frequency-size distributions and individuate hazard scenarios and their possible precursors, we investigate a cellular automaton where the effects of a finite driving rate and the anisotropy are taken into account. The model is able to reproduce observed features of landslide events, such as power-law distributions, as experimentally reported. We analyze the key role of the driving rate and show that, as it is increased, a crossover from power-law to non-power-law behaviors occurs. Finally, a systematic investigation of the model on varying its anisotropy factors is performed and the full diagram of its dynamical behaviors is presented.

  2. FY2014 Electric Drive Technologies Annual Progress Report

    SciTech Connect (OSTI)

    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.

  3. Aggregated Purchasing and Workplace Charging Can Drive EV Market Growth |

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

    Department of Energy Aggregated Purchasing and Workplace Charging Can Drive EV Market Growth Aggregated Purchasing and Workplace Charging Can Drive EV Market Growth November 24, 2014 - 11:06am Addthis Secretary of Energy Ernest Moniz with the utility industry's first plug-in electric hybrid drivetrain Class 5 bucket truck at the White House event on November 18, 2014. The truck, which is owned by Pacific Gas and Electric (PG&E), features up to 40 miles of all-electric range and

  4. Computer-Aided Engineering for Electric Drive Vehicle Batteries (CAEBAT) (Presentation)

    SciTech Connect (OSTI)

    Pesaran, A. A.

    2011-05-01

    This presentation describes NREL's computer aided engineering program for electric drive vehicle batteries.

  5. Designing Effective Incentives to Drive Residential Retrofit Program Participation (Text Version)

    Broader source: Energy.gov [DOE]

    Transcript of the webinar, "Designing Effective Incentives to Drive Residential Retrofit Program Participation."

  6. Building Informatics Environment

    Energy Science and Technology Software Center (OSTI)

    2008-06-02

    The Building Informatics Environment is a modeling environment based on the Modelica language. The environment allows users to create a computer model of a building and its energy systems with various time scales and physical resolutions. The environment can be used for rapid development of, e.g., demand controls algorithms, new HVAC system solutions and new operational strategies (controls, fault detection and diagnostics). Models for building energy and control systems are made available in the environment.more » The models can be used as provided, or they can be changed and/or linked with each other in order to model the effects that a particular user is interested in.« less

  7. POLICY GUIDANCE MEMORANDUM #06 Reducing Text Messaging While Driving

    Broader source: Energy.gov [DOE]

    This Order directed all agencies of the executive branch to take appropriate action within the scope of their existing programs to further the policies of this order and to implement rules for text messaging while operating Government-owned vehicles, or using electronic equipment supplied by the Government while driving.

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

    SciTech Connect (OSTI)

    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.

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

    SciTech Connect (OSTI)

    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.

  10. EM Makes Strong Showing in Federal Food Drive

    Broader source: Energy.gov [DOE]

    WASHINGTON, D.C. – EM made a strong showing in this year’s Feds Feed Families drive, contributing 46,493 pounds of food across the DOE complex and topping it off by winning top prize in a government-wide chili cook-off held at the Department’s headquarters.

  11. U.S. DRIVE Partnership Releases Accomplishments Report

    Broader source: 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.

  12. A novel Stirling engine with an elliptic drive

    SciTech Connect (OSTI)

    Fang, H.W.; Herold, K.E.; Holland, H.M.; Beach, E.H.

    1996-12-31

    The concept of the Stirling cycle seems quite simple when presented as a cycle involving two constant temperature and two constant volume processes. The reality of machines that have evolved from the Stirling concept is considerably more complicated. Most real machines employ a drive mechanism that approximates a sinusoidal volume variation for each of the cylinders. This results in an overall volume variation that only poorly approximates the constant volume processes postulated in the classic definition of a Stirling cycle. The difficulties of achieving the piston motions necessary to attain the discontinuous motions of the classic cycle are well known and, as a result, the sinusoidal motions are widely accepted as an inevitable compromise. It is noted that free piston Stirling machines are not constrained in the same manner. However, the discussion here focuses on kinematic drive machines. In the current study, a Rider-type engine with an elliptic drive is modeled with the objective of clarifying the potential of a more ideal volume variation. This drive mechanism is the subject of a US Patent filed with Serial Number 08/360,052 on 20 December 1994.

  13. Minimize Adverse Motor and Adjustable Speed Drive Interactions

    Broader source: 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.

  14. Sensitive response of a model of symbiotic ecosystem to seasonal periodic drive

    SciTech Connect (OSTI)

    Rekker, A.; Lumi, N.; Mankin, R.

    2014-11-12

    A symbiotic ecosysytem (metapopulation) is studied by means of the stochastic Lotka-Volterra model with generalized Verhulst self-regulation. The effect of variable environment on the carrying capacities of populations is taken into account as an asymmetric dichotomous noise and as a deterministic periodic stimulus. In the framework of the mean-field theory an explicit self-consistency equation for the system in the long-time limit is presented. Also, expressions for the probability distribution and for the moments of the population size are found. In certain cases the mean population size exhibits large oscillations in time, even if the amplitude of the seasonal environmental drive is small. Particularly, it is shown that the occurrence of large oscillations of the mean population size can be controlled by noise parameters (such as amplitude and correlation time) and by the coupling strength of the symbiotic interaction between species.

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

    SciTech Connect (OSTI)

    Hohenberger, M.; Radha, P. B.; Myatt, J. F.; Marozas, J. A.; Marshall, F. J.; Michel, D. T.; Regan, S. P.; Seka, W.; Shvydky, A.; Sangster, T. C.; Betti, R.; Boehly, T. R.; Bonino, M. J.; Collins, T. J. B.; Craxton, R. S.; Delettrez, J. A.; Edgell, D. H.; Epstein, R.; Fiksel, G.; Froula, D. H.; and others

    2015-05-15

    To support direct-drive inertial confinement fusion experiments at the National Ignition Facility (NIF) [G. H. Miller, E. I. Moses, and C. R. Wuest, Opt. Eng. 43, 2841 (2004)] in its indirect-drive beam configuration, the polar-direct-drive (PDD) concept [S. Skupsky et al., Phys. Plasmas 11, 2763 (2004)] has been proposed. Ignition in PDD geometry requires direct-drivespecific beam smoothing, phase plates, and repointing the NIF beams toward the equator to ensure symmetric target irradiation. First experiments to study the energetics and preheat in PDD implosions at the NIF have been performed. These experiments utilize the NIF in its current configuration, including beam geometry, phase plates, and beam smoothing. Room-temperature, 2.2-mm-diam plastic shells filled with D{sub 2} gas were imploded with total drive energies ranging from ?500 to 750?kJ with peak powers of 120 to 180 TW and peak on-target irradiances at the initial target radius from 8??10{sup 14} to 1.2??10{sup 15?}W/cm{sup 2}. Results from these initial experiments are presented, including measurements of shell trajectory, implosion symmetry, and the level of hot-electron preheat in plastic and Si ablators. Experiments are simulated with the 2-D hydrodynamics code DRACO including a full 3-D ray-trace to model oblique beams, and models for nonlocal electron transport and cross-beam energy transport (CBET). These simulations indicate that CBET affects the shell symmetry and leads to a loss of energy imparted onto the shell, consistent with the experimental data.

  16. Configuring the National Ignition Facility for direct-drive experiments

    SciTech Connect (OSTI)

    Eimerl, D.

    1995-07-01

    The National Ignition Facility (NIF) is a project whose primary mission is to provide an above-ground experimental capability for maintaining nuclear competence and weapons effects simulation, and to pursue the achievement of fusion ignition utilizing solid state lasers as the energy driver. In this facility a large number of laser beams are focused onto a small target located at the center of a spherical target chamber. The laser energy is delivered in a few billionths of a second, raising the temperature and density of the nuclear materials in the target to levels where significant thermonuclear energy is released. The thermonuclear reaction proceeds very rapidly, so that the target materials remain confined by their own inertia during the thermonuclear reaction. This type of approach is called inertial confinement fusion (ICF). The proposed project is described in a conceptual design report (CDR) that was released in May 1994. Early in FY95, a collaboration between the University of Rochester and the Lawrence Livermore National Laboratory was established to study reconfiguring the NIF to accommodate direct-drive experiments. The present paper is a report to the scientific community, primarily the scientists and engineers working on the design of the NIF. It represents results from work in progress, specifically work completed by the end of the second quarter FY95. This report has two main sections. The first describes the target requirements on the laser drive, and the second part describes how the NIF laser can be configured to accommodate both indirect and direct drive. The report includes a description of the scientific basis for these conclusions. Though a complete picture does not exist, the present understanding is sufficient to conclude that the primary target requirements and laser functional requirements for indirect and direct drive are quite compatible. It is evidently straightforward to reconfigure the NIF to accommodate direct and indirect drive.

  17. Environment Feature Stories

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

    Information Administration (EIA) Power Plant Environmental International Emissions All Environment Data Reports Analysis & Projections All Reports ‹ environment State Carbon Dioxide Emissions Data for: 2013 | Release Date: October 26, 2015 | Next Release Date: October 2016 Summary By fuel By energy sectors State methodology State analysis Additional Tables Coal Commercial Electric Industrial Natural gas Petroleum Residential Transportation States Format Alabama Alaska Arizona Arkansas

  18. Environment | Argonne National Laboratory

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

    Environment Glossary › FAQS › Overview Data Summary Electric power plant environmental International emissions All environment data reports Analysis & Projections Major Topics Most popular Carbon/greenhouse gas emissions International Other environmental issues Projections Recurring All reports Browse by Tag Alphabetical Frequency Tag Cloud Current Issues & Trends See more › Energy-related CO2 emissions from natural gas surpass coal as fuel use patterns change natural

  19. Geoscience/Environment

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

    Geoscience/Environment Geoscience/Environment Print From the high pressures at the Earth's core to the vacuum of outer space, the ALS has tools for investigating samples from either environmental extreme. "Geoscience" at the ALS covers a wide range of topics, from carbon sequestration and air quality to cometary composition and the formation of the solar system. To narrow the focus a bit, the ALS has an important role to play in addressing a number of environmental issues, including

  20. NERSC User Environment

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

    Environment NERSC User Environment Home Directories, Shells and Dotfiles All NERSC systems use global home directories, which are are pre-populated with shell initialization files (also known as dotfiles) for all available shells. NERSC fully supports bash, csh, and tcsh as login shells. Other shells (ksh, sh, and zsh) are also available. The default shell at NERSC is csh. Dotfiles The "standard" dotfiles are symbolic links to read-only files that NERSC controls. For each standard

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

    SciTech Connect (OSTI)

    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.

  2. Testing of a direct drive generator for wind turbines

    SciTech Connect (OSTI)

    Sondergaard, L.M.

    1996-12-31

    The normal drive train of a wind turbine consists a gearbox and a 4 to 8 poles asynchronous generator. The gearbox is an expensive and unreliable components and this paper deals with testing of a direct drive synchronous generator for a gearless wind turbine. The Danish company Belt Electric has constructed and manufactured a 27 kW prototype radial flux PM-generator (DD600). They have used cheap hard ferrite magnets in the rotor of this PM-generator. This generator has been tested at Riso and the test results are investigated and analyzed in this paper. The tests have been done with three different load types (1: resistance; 2: diode rectifier, DC-capacitor, resistance; 3: AC-capacitor, diode rectifier, DC-capacitor, resistance). 1 ref., 9 figs., 5 tabs.

  3. PHYSICS OF ELCTRON CYCLOTRON CURRENT DRIVE ON DIII-D

    SciTech Connect (OSTI)

    PETTY,CC; PRATER,R; LUCE,TC; ELLIS,RA; HARVEY,RW; KINSEY,JE; LAO,LL; LOHR,J; MAKOWSKI,MA

    2002-09-01

    OAK A271 PHYSICS OF ELCTRON CYCLOTRON CURRENT DRIVE ON DIII-D. Recent experiments on the DIII-D tokamak have focused on determining the effect of trapped particles on the electron cyclotron current drive (ECCD) efficiency. The measured ECCD efficiency increases as the deposition location is moved towards the inboard midplane or towards smaller minor radius for both co and counter injection. The measured ECCD efficiency also increases with increasing electron density and/or temperature. The experimental ECCD is compared to both the linear theory (Toray-GA) as well as a quasilinear Fokker-Planck model (CQL3D). The experimental ECCD is found to be in better agreement with the more complete Fokker-Planck calculation, especially for cases of high rf power density and/or loop voltage. The narrow width of the measured ECCD profile is consistent with only low levels of radial transport for the current carrying electrons.

  4. Collisional current drive in two interpenetrating plasma jets

    SciTech Connect (OSTI)

    Ryutov, D. D.; Kugland, N. L.; Park, H.-S.; Pollaine, S. M.; Remington, B. A.; Ross, J. S.

    2011-10-15

    The magnetic field generation in two interpenetrating, weakly collisional plasma streams produced by intense lasers is considered. The generation mechanism is very similar to the neutral beam injection current drive in toroidal fusion devices, with the differences related to the absence of the initial magnetic field, short interaction time, and different geometry. Spatial and temporal characteristics of the magnetic field produced in two counterstreaming jets are evaluated; it is shown that the magnetic field of order of 1 T can be generated for modest jet parameters. Conditions under which this mechanism dominates that of the ''Biermann battery'' are discussed. Other settings where the mechanism of the collisional current drive can be important for the generation of seed magnetic fields include astrophysics and interiors of hohlraums.

  5. Built Environment Energy Analysis Tool Overview (Presentation), NREL (National Renewable Energy Laboratory)

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

    Built Environment Energy Analysis Tool Overview Prepared by: Chris Porter Cambridge Systematics, Inc. Cambridge, Massachusetts NREL Technical Monitor: Laura Vimmerstedt March 2013 NREL/PR-6A20-58101 2 Built Environment Energy Analysis Tool Overview Subcontractor: Chris Porter Cambridge Systematics, Inc. 100 Cambridge Park Drive, Suite 400 Cambridge, MA 02140 Period of Performance: June 2011-February 2013 NREL Technical Monitor: Laura Vimmerstedt Prepared under Subcontract No. DGJ-1-11857-01 This

  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. US DRIVE Hydrogen Delivery Technical Team Roadmap | Department of Energy

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

    Hydrogen Delivery Technical Team Roadmap US DRIVE Hydrogen Delivery Technical Team Roadmap The mission of the Hydrogen Delivery Technical Team (HDTT) is to enable the development of hydrogen delivery technologies, which will allow for fuel cell competitiveness with gasoline and hybrid technologies by achieving an as-produced, delivered, and dispensed hydrogen cost of $2-$4 per gallon of gasoline equivalent of hydrogen. hdtt_roadmap_june2013.pdf (1.55 MB) More Documents & Publications

  8. US DRIVE Hydrogen Production Technical Team Roadmap | Department of Energy

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

    Production Technical Team Roadmap US DRIVE Hydrogen Production Technical Team Roadmap The mission of the Hydrogen Production Technical Team (HPTT) is to enable the development of hydrogen production technologies, using clean, domestic resources, which will allow for an as-produced, delivered, and dispensed cost of $2 to $4 per gasoline gallon equivalent (gge) of hydrogen. hptt_roadmap_june2013.pdf (2.62 MB) More Documents & Publications Hydrogen Production Technical Team Roadmap Bio-Derived

  9. Extended cage adjustable speed electric motors and drive packages

    DOE Patents [OSTI]

    Hsu, J.S.

    1999-03-23

    The rotor cage of a motor is extended, a second stator is coupled to this extended rotor cage, and the windings have the same number of poles. The motor torque and speed can be controlled by either injecting energy into or extracting energy out from the rotor cage. The motor produces less harmonics than existing doubly-fed motors. Consequently, a new type of low cost, high efficiency drive is produced. 12 figs.

  10. Extended cage adjustable speed electric motors and drive packages

    DOE Patents [OSTI]

    Hsu, John S.

    1999-01-01

    The rotor cage of a motor is extended, a second stator is coupled to this extended rotor cage, and the windings have the same number of poles. The motor torque and speed can be controlled by either injecting energy into or extracting energy out from the rotor cage. The motor produces less harmonics than existing doubly-fed motors. Consequently, a new type of low cost, high efficiency drive is produced.

  11. Driving Battery Production in Ohio | Department of Energy

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

    Battery Production in Ohio Driving Battery Production in Ohio November 1, 2010 - 6:19pm Addthis Randy Turk, Elyria Site Manager; Rep. Betty Sutton (OH); Frank Bozich, President Catalysts, BASF and Patrick Davis, DOE Program Manager participate in groundbreaking ceremony for BASF battery materials plant in Elyria, Ohio | Photo Courtesy of Nat Clymer Photography, LLC | Randy Turk, Elyria Site Manager; Rep. Betty Sutton (OH); Frank Bozich, President Catalysts, BASF and Patrick Davis, DOE Program

  12. Electric Drive Semiconductor Manufacturing (EDSM) Center | Department of

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

    for the US Department of Energy Electric Drive Inverter R&D Madhu Chinthavali Email: chinthavalim@ornl.gov Phone: 865-946-1411 This presentation does not contain any proprietary, confidential, or otherwise restricted information U.S. DOE Vehicle Technologies Office 2015 Annual Merit Review and Peer Evaluation Meeting Oak Ridge National Laboratory June10, 2015 Project ID: EDT053 2 Overview * Start - FY15 * Finish - FY17 * 17% complete * Availability and the cost of the WBG devices for the

  13. Manganese Reduction-Oxidation Drives Plant Debris Decomposition

    Broader source: All U.S. Department of Energy (DOE) Office 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 nutrient availability, ecosystem productivity, and carbon (C) cycling. Historically, climate (primarily temperature and precipitation) has been thought to regulate the rate of litter decomposition, which then influences the rate at which nutrients become available and C contained in the litter is released back into

  14. Manganese Reduction-Oxidation Drives Plant Debris Decomposition

    Broader source: All U.S. Department of Energy (DOE) Office 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 nutrient availability, ecosystem productivity, and carbon (C) cycling. Historically, climate (primarily temperature and precipitation) has been thought to regulate the rate of litter decomposition, which then influences the rate at which nutrients become available and C contained in the litter is released back into

  15. Manganese Reduction-Oxidation Drives Plant Debris Decomposition

    Broader source: All U.S. Department of Energy (DOE) Office 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 nutrient availability, ecosystem productivity, and carbon (C) cycling. Historically, climate (primarily temperature and precipitation) has been thought to regulate the rate of litter decomposition, which then influences the rate at which nutrients become available and C contained in the litter is released back into

  16. Dielectric Wakefield Accelerator to drive the future FEL Light Source.

    SciTech Connect (OSTI)

    Jing, C.; Power, J.; Zholents, A. )

    2011-04-20

    X-ray free-electron lasers (FELs) are expensive instruments and a large part of the cost of the entire facility is driven by the accelerator. Using a high-energy gain dielectric wake-field accelerator (DWA) instead of the conventional accelerator may provide a significant cost saving and reduction of the facility size. In this article, we investigate using a collinear dielectric wakefield accelerator to provide a high repetition rate, high current, high energy beam to drive a future FEL x-ray light source. As an initial case study, a {approx}100 MV/m loaded gradient, 850 GHz quartz dielectric based 2-stage, wakefield accelerator is proposed to generate a main electron beam of 8 GeV, 50 pC/bunch, {approx}1.2 kA of peak current, 10 x 10 kHz (10 beamlines) in just 100 meters with the fill factor and beam loading considered. This scheme provides 10 parallel main beams with one 100 kHz drive beam. A drive-to-main beam efficiency {approx}38.5% can be achieved with an advanced transformer ratio enhancement technique. rf power dissipation in the structure is only 5 W/cm{sup 2} in the high repetition rate, high gradient operation mode, which is in the range of advanced water cooling capability. Details of study presented in the article include the overall layout, the transform ratio enhancement scheme used to increase the drive to main beam efficiency, main wakefield linac design, cooling of the structure, etc.

  17. Battery and Electric Drive Awardee List from American Recovery and

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

    Reinvestment Act funding | Department of Energy Awardee List from American Recovery and Reinvestment Act funding Battery and Electric Drive Awardee List from American Recovery and Reinvestment Act funding This is a list of the awardees from American Recovery and Reinvestment Act funding: $1.5 billion in grants to United States-based manufacturers to produce batteries and their components and to expand battery recycling capacity $500 million in grants to United States-based manufacturers to

  18. Battery and Electric Drive Manufacturing Distribution Map - American

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

    Recovery and Reinvestment Act funding | Department of Energy Manufacturing Distribution Map - American Recovery and Reinvestment Act funding Battery and Electric Drive Manufacturing Distribution Map - American Recovery and Reinvestment Act funding This is a map of the following awardees from the American Recovery and Reinvestment Act: $1.5 billion in grants to United States-based manufacturers to produce batteries and their components and to expand battery recycling capacity $500 million in

  19. MHD simulation of RF current drive in MST

    SciTech Connect (OSTI)

    Hendries, E. R.; Anderson, J. K.; Forest, C. B.; Reusch, J. A.; Seltzman, A. H.; Sovinec, C. R.; Diem, S.; Harvey, R. W.

    2014-02-12

    Auxiliary heating and current drive using RF waves such as the electron Bernstein wave (EBW) promises to advance the performance of the reversed field pinch (RFP). In previous computational work [1], a hypothetical edge-localized current drive is shown to suppress the tearing activity which governs the macroscopic transport properties of the RFP. The ideal conditions for tearing stabilization include a reduced toroidal induction, and precise width and radial position of the Gaussian-shaped external current drive. In support of the EBW experiment on the Madison Symmetric Torus, an integrated modeling scheme now incorporates ray tracing and Fokker-Plank predictions of auxiliary current into single fluid MHD. Simulations at low Lundquist number (S ∼ 10{sup 4}) generally agree with the previous work; significantly more burdensome simulations at MST-like Lundquist number (S ∼ 3×10{sup 6}) show unexpected results. The effect on nonlinearly saturated current profile by a particular RF-driven external force decreases in magnitude and widens considerably as the Lundquist number increases toward experimental values. Simulations reproduce the periodic current profile relaxation events observed in experiment (sawteeth) in the absence of current profile control. Reduction of the tearing mode amplitudes is still observable; however, reduction is limited to periods between the large bursts of magnetic activity at each sawtooth. The sawtoothing pattern persists with up to 10 MW of externally applied RF power. Periods with prolonged low tearing amplitude are predicted with a combination of external current drive and a reduced toroidal loop voltage, consistent with previous conclusions. Finally, the resistivity profile is observed to have a strong effect on the optimal externally driven current profile for mode stabilization.

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

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

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

    2015-05-11

    To support direct-drive inertial confinement fusion experiments at the National Ignition Facility (NIF) [G. H. Miller, E. I. Moses, and C. R. Wuest, Opt. Eng. 43, 2841 (2004)] in its indirect-drive beam configuration, the polar-direct-drive (PDD) concept [S. Skupsky et al., Phys. Plasmas 11, 2763 (2004)] has been proposed. Ignition in PDD geometry requires direct-drive–specific beam smoothing, phase plates, and repointing the NIF beams toward the equator to ensure symmetric target irradiation. First experiments to study the energetics and preheat in PDD implosions at the NIF have been performed. These experiments utilize the NIF in its current configuration, including beammore » geometry, phase plates, and beam smoothing. Room-temperature, 2.2-mm-diam plastic shells filled with D₂ gas were imploded with total drive energies ranging from ~500 to 750 kJ with peak powers of 120 to 180 TW and peak on-target irradiances at the initial target radius from 8 10¹⁴ to 1.2 10¹⁵W/cm². Results from these initial experiments are presented, including measurements of shell trajectory, implosion symmetry, and the level of hot-electron preheat in plastic and Si ablators. Experiments are simulated with the 2-D hydrodynamics code DRACO including a full 3-D ray-trace to model oblique beams, and models for nonlocal electron transport and cross-beam energy transport (CBET). These simulations indicate that CBET affects the shell symmetry and leads to a loss of energy imparted onto the shell, consistent with the experimental data.« less

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

    SciTech Connect (OSTI)

    Hohenberger, M.; Radha, P. B.; Myatt, J. F.; LePape, S.; Marozas, J. A.; Marshall, F. J.; Michel, D. T.; Regan, S. P.; Seka, W.; Shvydky, A.; Sangster, T. C.; Bates, J. W.; Betti, R.; Boehly, T. R.; Bonino, M. J.; Casey, D. T.; Collins, T. J. B.; Craxton, R. S.; Delettrez, J. A.; Edgell, D. H.; Epstein, R.; Fiksel, G.; Fitzsimmons, P.; Frenje, J. A.; Froula, D. H.; Goncharov, V. N.; Harding, D. R.; Kalantar, D. H.; Karasik, M.; Kessler, T. J.; Kilkenny, J. D.; Knauer, J. P.; Kurz, C.; Lafon, M.; LaFortune, K. N.; MacGowan, B. J.; Mackinnon, A. J.; MacPhee, A. G.; McCrory, R. L.; McKenty, P. W.; Meeker, J. F.; Meyerhofer, D. D.; Nagel, S. R.; Nikroo, A.; Obenschain, S.; Petrasso, R. D.; Ralph, J. E.; Rinderknecht, H. G.; Rosenberg, M. J.; Schmitt, A. J.; Wallace, R. J.; Weaver, J.; Widmayer, C.; Skupsky, S.; Solodov, A. A.; Stoeckl, C.; Yaakobi, B.; Zuegel, J. D.

    2015-05-11

    To support direct-drive inertial confinement fusion experiments at the National Ignition Facility (NIF) [G. H. Miller, E. I. Moses, and C. R. Wuest, Opt. Eng. 43, 2841 (2004)] in its indirect-drive beam configuration, the polar-direct-drive (PDD) concept [S. Skupsky et al., Phys. Plasmas 11, 2763 (2004)] has been proposed. Ignition in PDD geometry requires direct-drive–specific beam smoothing, phase plates, and repointing the NIF beams toward the equator to ensure symmetric target irradiation. First experiments to study the energetics and preheat in PDD implosions at the NIF have been performed. These experiments utilize the NIF in its current configuration, including beam geometry, phase plates, and beam smoothing. Room-temperature, 2.2-mm-diam plastic shells filled with D₂ gas were imploded with total drive energies ranging from ~500 to 750 kJ with peak powers of 120 to 180 TW and peak on-target irradiances at the initial target radius from 8 10¹⁴ to 1.2 10¹⁵W/cm². Results from these initial experiments are presented, including measurements of shell trajectory, implosion symmetry, and the level of hot-electron preheat in plastic and Si ablators. Experiments are simulated with the 2-D hydrodynamics code DRACO including a full 3-D ray-trace to model oblique beams, and models for nonlocal electron transport and cross-beam energy transport (CBET). These simulations indicate that CBET affects the shell symmetry and leads to a loss of energy imparted onto the shell, consistent with the experimental data.

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

    SciTech Connect (OSTI)

    Hohenberger, M.; Radha, P. B.; Myatt, J. F.; LePape, S.; Marozas, J. A.; Marshall, F. J.; Michel, D. T.; Regan, S. P.; Seka, W.; Shvydky, A.; Sangster, T. C.; Bates, J. W.; Betti, R.; Boehly, T. R.; Bonino, M. J.; Casey, D. T.; Collins, T. J. B.; Craxton, R. S.; Delettrez, J. A.; Edgell, D. H.; Epstein, R.; Fiksel, G.; Fitzsimmons, P.; Frenje, J. A.; Froula, D. H.; Goncharov, V. N.; Harding, D. R.; Kalantar, D. H.; Karasik, M.; Kessler, T. J.; Kilkenny, J. D.; Knauer, J. P.; Kurz, C.; Lafon, M.; LaFortune, K. N.; MacGowan, B. J.; Mackinnon, A. J.; MacPhee, A. G.; McCrory, R. L.; McKenty, P. W.; Meeker, J. F.; Meyerhofer, D. D.; Nagel, S. R.; Nikroo, A.; Obenschain, S.; Petrasso, R. D.; Ralph, J. E.; Rinderknecht, H. G.; Rosenberg, M. J.; Schmitt, A. J.; Wallace, R. J.; Weaver, J.; Widmayer, C.; Skupsky, S.; Solodov, A. A.; Stoeckl, C.; Yaakobi, B.; Zuegel, J. D.

    2015-05-01

    To support direct-drive inertial confinement fusion experiments at the National Ignition Facility (NIF) [G. H. Miller, E. I. Moses, and C. R. Wuest, Opt. Eng. 43, 2841 (2004)] in its indirect-drive beam configuration, the polar-direct-drive (PDD) concept [S. Skupsky et al., Phys. Plasmas 11, 2763 (2004)] has been proposed. Ignition in PDD geometry requires direct-drive–specific beam smoothing, phase plates, and repointing the NIF beams toward the equator to ensure symmetric target irradiation. First experiments to study the energetics and preheat in PDD implosions at the NIF have been performed. These experiments utilize the NIF in its current configuration, including beam geometry, phase plates, and beam smoothing. Room-temperature, 2.2-mm-diam plastic shells filled with D2 gas were imploded with total drive energies ranging from ~500-750 kJ with peak powers of 120 to 180 TW and peak on-target irradiances at the initial target radius from 8 x 1014 to 1.2 x 1015 W/cm2. Results from these initial experiments are presented, including measurements of shell trajectory, implosion symmetry, and the level of hot-electron preheat in plastic and Si ablators. Experiments are simulated with the 2-D hydrodynamics code DRACO including a full 3-D ray-trace to model oblique beams, and models for nonlocal electron transport and cross-beam energy transport (CBET). These simulations indicate that CBET affects the shell symmetry and leads to a loss of energy imparted onto the shell, consistent with the experimental data.

  3. Manganese Reduction-Oxidation Drives Plant Debris Decomposition

    Broader source: All U.S. Department of Energy (DOE) Office 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 nutrient availability, ecosystem productivity, and carbon (C) cycling. Historically, climate (primarily temperature and precipitation) has been thought to regulate the rate of litter decomposition, which then influences the rate at which nutrients become available and C contained in the litter is released back into

  4. Supercomputers Drive Discovery of Materials for More Efficient Carbon

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

    Capture | U.S. DOE Office of Science (SC) Supercomputers Drive Discovery of Materials for More Efficient Carbon Capture Advanced Scientific Computing Research (ASCR) ASCR Home About Research Facilities Science Highlights Benefits of ASCR Funding Opportunities Advanced Scientific Computing Advisory Committee (ASCAC) Community Resources Contact Information Advanced Scientific Computing Research U.S. Department of Energy SC-21/Germantown Building 1000 Independence Ave., SW Washington, DC 20585

  5. Direct Fusion Drive for a Human Mars Orbital Mission

    SciTech Connect (OSTI)

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

    2014-08-01

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

  6. Partnerships Drive New Transportation Solutions - Energy Innovation Portal

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

    Vehicles and Fuels Vehicles and Fuels Return to Search Partnerships Drive New Transportation Solutions National Renewable Energy Laboratory Success Story Details Partner Location Agreement Type Publication Date General Motors (GM), Chrysler, and Ford USA Other October 23, 2014 Summary Hybrid car sales have taken off in recent years, with a fuel-sipping combination of electric- and gas-powered technologies that simultaneously deliver energy efficiency, low emissions, and strong performance. The

  7. US DRIVE Advanced Combustion and Emission Control Technical Team Roadmap |

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

    Department of Energy 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 aftertreatment technology for three major combustion strategies: (1) Low-Temperature Combustion, (2) Dilute Gasoline combustion, and (3) Clean Diesel Combustion. acec_roadmap_june2013.pdf (1.29 MB) More Documents & Publications Overview of the Advanced Combustion Engine R&D Overview of DOE

  8. US DRIVE Hydrogen Codes and Standards Technical Team Roadmap | Department

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

    of Energy 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 enable and facilitate the appropriate research, development, & demonstration (RD&D) for the development of safe, performance-based defensible technical codes and standards that support the technology readiness and are appropriate for widespread consumer use of fuel cells and hydrogen-based

  9. 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

  10. GPS Data Filtration Method for Drive Cycle Analysis Applications

    SciTech Connect (OSTI)

    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.

  11. A Drive Laser for Multi-Bunch Photoinjector Operation

    SciTech Connect (OSTI)

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

    2012-05-11

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

  12. Environment scattering in GADRAS.

    SciTech Connect (OSTI)

    Thoreson, Gregory G.; Mitchell, Dean James; Theisen, Lisa Anne; Harding, Lee T.

    2013-09-01

    Radiation transport calculations were performed to compute the angular tallies for scattered gamma-rays as a function of distance, height, and environment. Green's Functions were then used to encapsulate the results a reusable transformation function. The calculations represent the transport of photons throughout scattering surfaces that surround sources and detectors, such as the ground and walls. Utilization of these calculations in GADRAS (Gamma Detector Response and Analysis Software) enables accurate computation of environmental scattering for a variety of environments and source configurations. This capability, which agrees well with numerous experimental benchmark measurements, is now deployed with GADRAS Version 18.2 as the basis for the computation of scattered radiation.

  13. Development of long pulse RF heating and current drive for H-mode scenarios with metallic walls in WEST

    SciTech Connect (OSTI)

    Ekedahl, Annika Bourdelle, Clarisse; Artaud, Jean-François; Bernard, Jean-Michel; Bufferand, Hugo; Colas, Laurent; Decker, Joan; Delpech, Léna; Dumont, Rémi; Goniche, Marc; Helou, Walid; Hillairet, Julien; Lombard, Gilles; Magne, Roland; Mollard, Patrick; Nardon, Eric; Peysson, Yves; Tsitrone, Emmanuelle

    2015-12-10

    The longstanding expertise of the Tore Supra team in long pulse heating and current drive with radiofrequency (RF) systems will now be exploited in the WEST device (tungsten-W Environment in Steady-state Tokamak) [1]. WEST will allow an integrated long pulse tokamak programme for testing W-divertor components at ITER-relevant heat flux (10-20 MW/m{sup 2}), while treating crucial aspects for ITER-operation, such as avoidance of W-accumulation in long discharges, monitoring and control of heat fluxes on the metallic plasma facing components (PFCs) and coupling of RF waves in H-mode plasmas. Scenario modelling using the METIS-code shows that ITER-relevant heat fluxes are compatible with the sustainment of long pulse H-mode discharges, at high power (up to 15 MW / 30 s at I{sub P} = 0.8 MA) or high fluence (up to 10 MW / 1000 s at I{sub P} = 0.6 MA) [2], all based on RF heating and current drive using Ion Cyclotron Resonance Heating (ICRH) and Lower Hybrid Current Drive (LHCD). This paper gives a description of the ICRH and LHCD systems in WEST, together with the modelling of the power deposition of the RF waves in the WEST-scenarios.

  14. Risk Analysis Virtual ENvironment

    Energy Science and Technology Software Center (OSTI)

    2014-02-10

    RAVEN has 3 major functionalities: 1. Provides a Graphical User Interface for the pre- and post-processing of the RELAP-7 input and output. 2. Provides the capability to model nuclear power plants control logic for the RELAP-7 code and dynamic control of the accident scenario evolution. This capability is based on a software structure that realizes a direct connection between the RELAP-7 solver engine (MOOSE) and a python environment where the variables describing the plant statusmore » are accessible in a scripting environment. RAVEN support the generation of the probabilistic scenario control by supplying a wide range of probability and cumulative distribution functions and their inverse functions. 3. Provides a general environment to perform probability risk analysis for RELAP-7, RELAP-5 and any generic MOOSE based applications. The probabilistic analysis is performed by sampling the input space of the coupled code parameters and it is enhanced by using modern artificial intelligence algorithms that accelerate the identification of the areas of major risk (in the input parameter space). This environment also provides a graphical visualization capability to analyze the outcomes. Among other approaches, the classical Monte Carlo and Latin Hypercube sampling algorithms are available. For the acceleration of the convergence of the sampling methodologies, Support Vector Machines, Bayesian regression, and collocation stochastic polynomials chaos are implemented. The same methodologies here described could be used to solve optimization and uncertainties propagation problems using the RAVEN framework.« less

  15. Risk Analysis Virtual ENvironment

    SciTech Connect (OSTI)

    2014-02-10

    RAVEN has 3 major functionalities: 1. Provides a Graphical User Interface for the pre- and post-processing of the RELAP-7 input and output. 2. Provides the capability to model nuclear power plants control logic for the RELAP-7 code and dynamic control of the accident scenario evolution. This capability is based on a software structure that realizes a direct connection between the RELAP-7 solver engine (MOOSE) and a python environment where the variables describing the plant status are accessible in a scripting environment. RAVEN support the generation of the probabilistic scenario control by supplying a wide range of probability and cumulative distribution functions and their inverse functions. 3. Provides a general environment to perform probability risk analysis for RELAP-7, RELAP-5 and any generic MOOSE based applications. The probabilistic analysis is performed by sampling the input space of the coupled code parameters and it is enhanced by using modern artificial intelligence algorithms that accelerate the identification of the areas of major risk (in the input parameter space). This environment also provides a graphical visualization capability to analyze the outcomes. Among other approaches, the classical Monte Carlo and Latin Hypercube sampling algorithms are available. For the acceleration of the convergence of the sampling methodologies, Support Vector Machines, Bayesian regression, and collocation stochastic polynomials chaos are implemented. The same methodologies here described could be used to solve optimization and uncertainties propagation problems using the RAVEN framework.

  16. Multiprocessor programming environment

    SciTech Connect (OSTI)

    Smith, M.B.; Fornaro, R.

    1988-12-01

    Programming tools and techniques have been well developed for traditional uniprocessor computer systems. The focus of this research project is on the development of a programming environment for a high speed real time heterogeneous multiprocessor system, with special emphasis on languages and compilers. The new tools and techniques will allow a smooth transition for programmers with experience only on single processor systems.

  17. Interconnection Coordination with Environment

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

    Interconnection Coordination with Environment John Steward Topics * Interconnection Types - Large Generator Interconnect Procedures (LGIP) * Interconnection Queue - UGP * OATT Revision * Transmission Service Issues * Open Discussion - Thoughts on coordination. Interconnection Types * Generators - Small Generator Interconnection Procedures (under 20MW) - Large Generator Interconnection Procedures (over 20MW) * Load - General Requirements for Interconnection * Transmission Large Generator

  18. Study of the Durability of Doped Lanthanum Manganite and Cobaltite Cathode Materials under ''Real World'' Air Exposure Atmospheres

    SciTech Connect (OSTI)

    Singh, Prabhakar; Mahapatra, Manoj; Ramprasad, Rampi; Minh, Nguyen; Misture, Scott

    2014-11-30

    The overall objective of the program is to develop and validate mechanisms responsible for the overall structural and chemical degradation of lanthanum manganite as well as lanthanum ferrite cobaltite based cathode when exposed to “real world” air atmosphere exposure conditions during SOFC systems operation. Of particular interest are the evaluation and analysis of degradation phenomena related to and responsible for (a) products formation and interactions with air contaminants, (b) dopant segregation and oxide exolution at free surfaces, (c) cation interdiffusion and reaction products formation at the buried interfaces, (d) interface morphology changes, lattice transformation and the development of interfacial porosity and (e) micro-cracking and delamination from the stack repeat units. Reaction processes have been studied using electrochemical and high temperature materials compatibility tests followed by structural and chemical characterization. Degradation hypothesis has been proposed and validated through further experimentation and computational simulation.

  19. Transportation Secure Data Center: Real-World Data for Transportation Planning and Land Use Analysis (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-01-01

    The National Renewable Energy Laboratory (NREL) and the U.S. Department of Transportation (DOT) have launched the free, web-based Transportation Secure Data Center (TSDC). The TSDC (www.nrel.gov/tsdc) preserves respondent anonymity while making vital transportation data available to a broad group of users through secure, online access. The TSDC database provides free-of-charge web-based access to valuable transportation data that can be used for: Transit planning, Travel demand modeling, Homeland Security evacuation planning, Alternative fuel station planning, and Validating transportation data from other sources. The TSDC's two levels of access make composite data available with simple online registration, and allow researchers to use detailed spatial data after completing a straight forward application process.

  20. Measurement of Real-World Emissions from Heavy-Duty Diesel Vehicles: The State-of-the-Art

    Broader source: Energy.gov [DOE]

    2003 DEER Conference Presentation: West Virginia University - Dept. of Mechanical and Aerospace Engineering

  1. Dedicated to The Continued Education, Training and Demonstration of PEM Fuel Cell Powered Lift Trucks In Real-World Applications

    Office of Energy Efficiency and Renewable Energy (EERE)

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

  2. Direct-drive inertial confinement fusion: A review

    SciTech Connect (OSTI)

    Craxton, R. S.; Anderson, K. S.; Boehly, T. R.; Goncharov, V. N.; Harding, D. R.; Knauer, J. P.; McKenty, P. W.; Myatt, J. F.; Short, R. W.; Skupsky, S.; Theobald, W.; Collins, T. J. B.; Delettrez, J. A.; Hu, S. X.; Marozas, J. A.; Maximov, A. V.; Michel, D. T.; Radha, P. B.; Regan, S. P.; Sangster, T. C.; and others

    2015-11-15

    The direct-drive, laser-based approach to inertial confinement fusion (ICF) is reviewed from its inception following the demonstration of the first laser to its implementation on the present generation of high-power lasers. The review focuses on the evolution of scientific understanding gained from target-physics experiments in many areas, identifying problems that were demonstrated and the solutions implemented. The review starts with the basic understanding of laser–plasma interactions that was obtained before the declassification of laser-induced compression in the early 1970s and continues with the compression experiments using infrared lasers in the late 1970s that produced thermonuclear neutrons. The problem of suprathermal electrons and the target preheat that they caused, associated with the infrared laser wavelength, led to lasers being built after 1980 to operate at shorter wavelengths, especially 0.35 μm—the third harmonic of the Nd:glass laser—and 0.248 μm (the KrF gas laser). The main physics areas relevant to direct drive are reviewed. The primary absorption mechanism at short wavelengths is classical inverse bremsstrahlung. Nonuniformities imprinted on the target by laser irradiation have been addressed by the development of a number of beam-smoothing techniques and imprint-mitigation strategies. The effects of hydrodynamic instabilities are mitigated by a combination of imprint reduction and target designs that minimize the instability growth rates. Several coronal plasma physics processes are reviewed. The two-plasmon–decay instability, stimulated Brillouin scattering (together with cross-beam energy transfer), and (possibly) stimulated Raman scattering are identified as potential concerns, placing constraints on the laser intensities used in target designs, while other processes (self-focusing and filamentation, the parametric decay instability, and magnetic fields), once considered important, are now of lesser concern for mainline

  3. Direct-drive inertial confinement fusion: A review

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

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

    2015-11-25

    In this study, the direct-drive, laser-based approach to inertial confinement fusion (ICF) is reviewed from its inception following the demonstration of the first laser to its implementation on the present generation of high-power lasers. The review focuses on the evolution of scientific understanding gained from target-physics experiments in many areas, identifying problems that were demonstrated and the solutions implemented. The review starts with the basic understanding of laser–plasma interactions that was obtained before the declassification of laser-induced compression in the early 1970s and continues with the compression experiments using infrared lasers in the late 1970s that produced thermonuclear neutrons. Themore » problem of suprathermal electrons and the target preheat that they caused, associated with the infrared laser wavelength, led to lasers being built after 1980 to operate at shorter wavelengths, especially 0.35 um—the third harmonic of the Nd:glass laser—and 0.248 um (the KrF gas laser). The main physics areas relevant to direct drive are reviewed. The primary absorption mechanism at short wavelengths is classical inverse bremsstrahlung. Nonuniformities imprinted on the target by laser irradiation have been addressed by the development of a number of beam-smoothing techniques and imprint-mitigation strategies. The effects of hydrodynamic instabilities are mitigated by a combination of imprint reduction and target designs that minimize the instability growth rates. Several coronal plasma physics processes are reviewed. The two-plasmon–decay instability, stimulated Brillouin scattering (together with cross-beam energy transfer), and (possibly) stimulated Raman scattering are identified as potential concerns, placing constraints on the laser intensities used in target designs, while other processes (self-focusing and filamentation, the parametric decay instability, and magnetic fields), once considered important, are now of lesser

  4. Direct-drive inertial confinement fusion: A review

    SciTech Connect (OSTI)

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

    2015-11-25

    In this study, the direct-drive, laser-based approach to inertial confinement fusion (ICF) is reviewed from its inception following the demonstration of the first laser to its implementation on the present generation of high-power lasers. The review focuses on the evolution of scientific understanding gained from target-physics experiments in many areas, identifying problems that were demonstrated and the solutions implemented. The review starts with the basic understanding of laser–plasma interactions that was obtained before the declassification of laser-induced compression in the early 1970s and continues with the compression experiments using infrared lasers in the late 1970s that produced thermonuclear neutrons. The problem of suprathermal electrons and the target preheat that they caused, associated with the infrared laser wavelength, led to lasers being built after 1980 to operate at shorter wavelengths, especially 0.35 um—the third harmonic of the Nd:glass laser—and 0.248 um (the KrF gas laser). The main physics areas relevant to direct drive are reviewed. The primary absorption mechanism at short wavelengths is classical inverse bremsstrahlung. Nonuniformities imprinted on the target by laser irradiation have been addressed by the development of a number of beam-smoothing techniques and imprint-mitigation strategies. The effects of hydrodynamic instabilities are mitigated by a combination of imprint reduction and target designs that minimize the instability growth rates. Several coronal plasma physics processes are reviewed. The two-plasmon–decay instability, stimulated Brillouin scattering (together with cross-beam energy transfer), and (possibly) stimulated Raman scattering are identified as potential concerns, placing constraints on the laser intensities used in target designs, while other processes (self-focusing and filamentation, the parametric decay instability, and magnetic fields), once considered important, are now of lesser concern for

  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. ICRF Mode Conversion Flow Drive on Alcator C-Mod and Projections...

    Office of Scientific and Technical Information (OSTI)

    ICRF Mode Conversion Flow Drive on Alcator C-Mod and Projections to Other Tokamaks Citation Details In-Document Search Title: ICRF Mode Conversion Flow Drive on Alcator C-Mod and ...

  7. How to be a Clean Energy Baller: Drive an Electric Car | Department...

    Office of Environmental Management (EM)

    How to be a Clean Energy Baller: Drive an Electric Car How to be a Clean Energy Baller: Drive an Electric Car September 8, 2016 - 2:50pm Addthis Illustration by Sarah Harman, ...

  8. Is it Cost-Effective to Replace Old Eddy-Current Drives?

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

    Eddy-current drives can produce more torque at low speed than an induction motor and VFD. When switching to a VFD for a constant torque load, the motor and the drive may require ...

  9. Ariane Environment | Open Energy Information

    Open Energy Info (EERE)

    Ariane Environment Jump to: navigation, search Name: Ariane Environment Place: London, United Kingdom Zip: W8 6JL Product: String representation "Ariane Environm ... onmental...

  10. Environment/Health/Safety Concerns

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

    EHS Emergencies Report AccidentIncident Stop Work Policy Environment, Health & Safety Concerns hardhat Environment Health Safety Concerns construction workers If you have a...

  11. Vehicle Technologies Office Merit Review 2015: 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 2015: Electric Drive Inverter R&D 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 electric drive inverter R&D. edt053_chinthavali_2015_o.pdf (2.32 MB) More Documents & Publications Vehicle Technologies Office Merit Review 2016: Electric Drive Inverter

  12. Evaluation of Range Estimates for Toyota FCHV-adv Under Open Road Driving

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

    Conditions | Department of Energy Range Estimates for Toyota FCHV-adv Under Open Road Driving Conditions Evaluation of Range Estimates for Toyota FCHV-adv Under Open Road Driving Conditions An evaluation to independently and objectively verify driving ranges of >400 miles announced by Toyota for its new advanced Fuel Cell Hybrid Vehicle (FCHV-adv) utilizing 70 MPa compressed hydrogen. Evaluation of Range Estimates for Toyota FCHV-adv Under Open Road Driving Conditions (1.14 MB) More

  13. Microsoft PowerPoint - 06 Crawley Drive for Net Zero Energy Commercial

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

    Buildings | Department of Energy 06 Crawley Drive for Net Zero Energy Commercial Buildings Microsoft PowerPoint - 06 Crawley Drive for Net Zero Energy Commercial Buildings Microsoft PowerPoint - 06 Crawley Drive for Net Zero Energy Commercial Buildings (1.5 MB) More Documents & Publications Microsoft PowerPoint - 06 Crawley Drive for Net Zero Energy Commercial Buildings Aspinall Courthouse: GSA's Historic Preservation and Net-Zero Renovation A Common Definition for Zero Energy Buildings

  14. #LabChat Recap: Innovations Driving More Efficient Vehicles | Department of

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

    Energy LabChat Recap: Innovations Driving More Efficient Vehicles #LabChat Recap: Innovations Driving More Efficient Vehicles December 21, 2012 - 10:47am Addthis Rebecca Matulka Rebecca Matulka Former Digital Communications Specialist, Office of Public Affairs [storify:http://storify.com/ENERGY/labchat-recap-innovations-driving-more-efficient] Addthis Related Articles #LabChat Recap: The Future of Biofuels #LabChat Recap: What is Dark Energy What improvements are making vehicles drive

  15. 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

  16. A Segmented Drive System with a Small DC Bus Capacitor | Department of

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

    Energy apep_08_su.pdf (346.73 KB) 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 Inverter Topology with a Small DC Bus Capacitor

  17. Virtual environment tactile system

    DOE Patents [OSTI]

    Renzi, R.

    1996-12-10

    A method for providing a realistic sense of touch in virtual reality by means of programmable actuator assemblies is disclosed. Each tactile actuator assembly consists of a number of individual actuators whose movement is controlled by a computer and associated drive electronics. When an actuator is energized, the rare earth magnet and the associated contactor, incorporated within the actuator, are set in motion by the opposing electromagnetic field of a surrounding coil. The magnet pushes the contactor forward to contact the skin resulting in the sensation of touch. When the electromagnetic field is turned off, the rare earth magnet and the contactor return to their neutral positions due to the magnetic equilibrium caused by the interaction with the ferrous outer sleeve. The small size and flexible nature of the actuator assemblies permit incorporation into a glove, boot or body suit. The actuator has additional applications, such as, for example, as an accelerometer, an actuator for precisely controlled actuations or to simulate the sensation of braille letters. 28 figs.

  18. Virtual environment tactile system

    DOE Patents [OSTI]

    Renzi, Ronald

    1996-01-01

    A method for providing a realistic sense of touch in virtual reality by means of programmable actuator assemblies is disclosed. Each tactile actuator assembly consists of a number of individual actuators whose movement is controlled by a computer and associated drive electronics. When an actuator is energized, the rare earth magnet and the associated contactor, incorporated within the actuator, are set in motion by the opposing electromagnetic field of a surrounding coil. The magnet pushes the contactor forward to contact the skin resulting in the sensation of touch. When the electromagnetic field is turned off, the rare earth magnet and the contactor return to their neutral positions due to the magnetic equilibrium caused by the interaction with the ferrous outer sleeve. The small size and flexible nature of the actuator assemblies permit incorporation into a glove, boot or body suit. The actuator has additional applications, such as, for example, as an accelerometer, an actuator for precisely controlled actuations or to simulate the sensation of braille letters.

  19. Securing collaborative environments

    SciTech Connect (OSTI)

    Agarwal, Deborah; Jackson, Keith; Thompson, Mary

    2002-05-16

    The diverse set of organizations and software components involved in a typical collaboratory make providing a seamless security solution difficult. In addition, the users need support for a broad range of frequency and locations for access to the collaboratory. A collaboratory security solution needs to be robust enough to ensure that valid participants are not denied access because of its failure. There are many tools that can be applied to the task of securing collaborative environments and these include public key infrastructure, secure sockets layer, Kerberos, virtual and real private networks, grid security infrastructure, and username/password. A combination of these mechanisms can provide effective secure collaboration capabilities. In this paper, we discuss the requirements of typical collaboratories and some proposals for applying various security mechanisms to collaborative environments.

  20. Extreme Environments (EFree) Center

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

    Extreme Environments (EFree ) Center LLNL Co-PI: Jonathon Crowhurst [e-mail] [bio] Novel materials for energy applications Ultrafast reflectivity measurements under high pressure Transient reflectivity of BaFe2As2 at the indicated pressures in neon. In this experiment we measure pump-driven ultrafast reflectivity changes in order to infer the time scale of electron phonon coupling, and help to assess its role and importance in new superconducting systems. We believe this is the first time such