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Sample records for avl powertrain engineering

  1. AVL Powertrain Engineering | Open Energy Information

    Open Energy Info (EERE)

    successadvisor.html AVL Powertrain Engineering is a company located in Detroit, MI. References "AVL" Retrieved from "http:en.openei.orgw...

  2. Workplace Charging Challenge Partner: AVL Powertrain Engineering, Inc. |

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

    Department of Energy AVL Powertrain Engineering, Inc. Workplace Charging Challenge Partner: AVL Powertrain Engineering, Inc. Workplace Charging Challenge Partner: AVL Powertrain Engineering, Inc. Founded in 1948, AVL provides advanced powertrain engineering services and a broad range of testing technology for the development of internal combustion, diesel, alternative fuel, hybrid and electrical propulsion systems. By installing workplace charging stations, AVL is helping build the

  3. Wankel engine for hybrid powertrain

    SciTech Connect (OSTI)

    Butti, A.; Site, V.D.

    1995-12-31

    The Wankel engine is suited to be used to drive hybrid propulsion systems. The main disadvantage of hybrid propulsion systems is the complexity that causes a high weight and large dimensions. For these reason hybrid systems are more suitable for large size vehicle (buses, vans) rather than for small passenger cars. A considerable reduction of hybrid systems weight and dimensions can be obtained using a Wankel rotary engine instead of a conventional engine. The Wankel engine is light, compact, simple, and produces low noise and low vibrations. Therefore a Wankel engine powered hybrid system is suited to be used on small cars. In this paper a 1,000 kg parallel hybrid car with continuously variable transmission and a 6,000 kg series hybrid minibus both equipped with Wankel engines are considered. The Wankel engine works at steady state to minimize fuel consumption and exhaust emissions. The simulation of the behavior of these two vehicles during a ECE + EUDC test cycle is presented in order to evaluate the performances of the systems.

  4. Method and apparatus for controlling hybrid powertrain system in response to engine temperature

    DOE Patents [OSTI]

    Martini, Ryan D; Spohn, Brian L; Lehmen, Allen J; Cerbolles, Teresa L

    2014-10-07

    A method for controlling a hybrid powertrain system including an internal combustion engine includes controlling operation of the hybrid powertrain system in response to a preferred minimum coolant temperature trajectory for the internal combustion engine.

  5. Integrated Vehicle and Powertrain Technology for EPA 2010 and...

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

    and Powertrain Technology for EPA 2010 and Beyond Integrated Vehicle and Powertrain Technology for EPA 2010 and Beyond Presentation given at the 2007 Diesel Engine-Efficiency &...

  6. Hybrid powertrain controller

    DOE Patents [OSTI]

    Jankovic, Miroslava (Birmingham, MI); Powell, Barry Kay (Belleville, MI)

    2000-12-26

    A hybrid powertrain for a vehicle comprising a diesel engine and an electric motor in a parallel arrangement with a multiple ratio transmission located on the torque output side of the diesel engine, final drive gearing connecting drivably the output shaft of transmission to traction wheels of the vehicle, and an electric motor drivably coupled to the final drive gearing. A powertrain controller schedules fuel delivered to the diesel engine and effects a split of the total power available, a portion of the power being delivered by the diesel and the balance of the power being delivered by the motor. A shifting schedule for the multiple ratio transmission makes it possible for establishing a proportional relationship between accelerator pedal movement and torque desired at the wheels. The control strategy for the powertrain maintains drivability of the vehicle that resembles drivability of a conventional spark ignition vehicle engine powertrain while achieving improved fuel efficiency and low exhaust gas emissions.

  7. European Diesel Engine Technology: An Overview | Department of Energy

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

    Diesel Engine Technology: An Overview European Diesel Engine Technology: An Overview 2002 DEER Conference Presentation: AVL Powertrain Engineering, Inc. PDF icon 2002_deer_brueckner.pdf More Documents & Publications 3-Cylinder Turbocharged Gasoline Direct Injection: A High Value Solution for Euro VI Emissions Heavy Duty Vehicle In-Use Emission Performance Evaluating Exhaust Emission Performance of Urban Buses Using Transient Heavy-Duty Chassis Dynamometer

  8. Bosch Powertrain Technologies | Department of Energy

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

    Bosch Powertrain Technologies Bosch Powertrain Technologies Provides major supplier view of future gasoline engine powertrain developments PDF icon deer12_yilmaz.pdf More Documents & Publications Vehicle Technologies Office Merit Review 2014: Advanced Combustion Concepts - Enabling Systems and Solutions (ACCESS) for High Efficiency Light Duty Vehicles Advanced Combustion Concepts - Enabling Systems and Solutions (ACCESS) for High Efficiency Light Duty Vehicles Advanced Combustion Concepts -

  9. Volvo SuperTruck - Powertrain Technologies for Efficiency Improvement

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

    2) * Innovative engine architectures * Alternative combustion cycles * Fueling Optimization * Demonstrate in Simulation and Single Cylinder Scoping 50% BTE Powertrain...

  10. Variable Charge Motion for 2007-2010 Heavy Duty Diesel Engines | Department

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

    of Energy Charge Motion for 2007-2010 Heavy Duty Diesel Engines Variable Charge Motion for 2007-2010 Heavy Duty Diesel Engines 2003 DEER Conference Presentation: AVL Powertrain Engineering PDF icon 2003_deer_maier.pdf More Documents & Publications Lowest Engine-Out Emissions as the Key to the Future of the Heavy-Duty Diesel Engine: New Development Rersults Can Future Emissions Limits be Met with a Hybrid EGR System Alone? Sources of CO and UHC Emissions in Low-Temperature Diesel

  11. Powertrain Trends and Future Potential

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

    DS/NE-NA | August 4, 2009 | © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Automotive Technology Powertrain Trends and Future Potential Dr. Johannes-Joerg Rueger Sr. Vice President, Robert Bosch Panel "New Directions in Engine and Fuels" DEER Conference, Dearborn, August 4, 2009 2 Powertrain Trends and Future Potential * Global Trends - Fighting Global Warming *

  12. Advanced Powertrain Research Facility | Argonne National Laboratory

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

    Advanced Powertrain Research Facility Argonne's Advanced Powertrain Research Facility (APRF) enables researchers to conduct vehicle benchmarking and testing activities that provide data critical to the development and commercialization of next-generation vehicles. APRF engineers use the facility's two-wheel drive (2WD) and four-wheel drive (4WD) dynamometers and state-of-the-art instrumentation to reveal important information on performance, fuel economy, energy consumption and emissions output.

  13. Future Potential of Hybrid and Diesel Powertrains in the U.S...

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

    Hybrid and Diesel Powertrains in the U.S. Light-Duty Vehicle Market Future Potential of Hybrid and Diesel Powertrains in the U.S. Light-Duty Vehicle Market 2004 Diesel Engine ...

  14. Predictive powertrain control using powertrain history and GPS data

    DOE Patents [OSTI]

    Weslati, Feisel; Krupadanam, Ashish A

    2015-03-03

    A method and powertrain apparatus that predicts a route of travel for a vehicle and uses historical powertrain loads and speeds for the predicted route of travel to optimize at least one powertrain operation for the vehicle.

  15. Intermediate Alcohol-Gasoline Blends, Fuels for Enabling Increased Engine Efficiency and Powertrain Possibilities

    SciTech Connect (OSTI)

    Splitter, Derek A; Szybist, James P

    2014-01-01

    The present study experimentally investigates spark-ignited combustion with 87 AKI E0 gasoline in its neat form and in mid-level alcohol-gasoline blends with 24% vol./vol. iso-butanol-gasoline (IB24) and 30% vol./vol. ethanol-gasoline (E30). A single-cylinder research engine is used with a low and high compression ratio of 9.2:1 and 11.85:1 respectively. The engine is equipped with hydraulically actuated valves, laboratory intake air, and is capable of external exhaust gas recirculation (EGR). All fuels are operated to full-load conditions with =1, using both 0% and 15% external cooled EGR. The results demonstrate that higher octane number bio-fuels better utilize higher compression ratios with high stoichiometric torque capability. Specifically, the unique properties of ethanol enabled a doubling of the stoichiometric torque capability with the 11.85:1 compression ratio using E30 as compared to 87 AKI, up to 20 bar IMEPg at =1 (with 15% EGR, 18.5 bar with 0% EGR). EGR was shown to provide thermodynamic advantages with all fuels. The results demonstrate that E30 may further the downsizing and downspeeding of engines by achieving increased low speed torque, even with high compression ratios. The results suggest that at mid-level alcohol-gasoline blends, engine and vehicle optimization can offset the reduced fuel energy content of alcohol-gasoline blends, and likely reduce vehicle fuel consumption and tailpipe CO2 emissions.

  16. SLH Timing Belt Powertrain

    SciTech Connect (OSTI)

    Schneider, Abe

    2014-04-09

    The main goal of this proposal was to develop and test a novel powertrain solution for the SLH hydroEngine—, a low-cost, efficient low-head hydropower technology. Nearly two-thirds of U.S. renewable electricity is produced by hydropower (EIA 2010). According to the U.S. Department of Energy; this amount could be increased by 50% with small hydropower plants, often using already-existing dams (Hall 2004). There are more than 80,000 existing dams, and of these, less than 4% generate power (Blankinship 2009). In addition, there are over 800 irrigation districts in the U.S., many with multiple, non-power, low-head drops. These existing, non-power dams and irrigation drops could be retrofitted to produce distributed, baseload, renewable energy with appropriate technology. The problem is that most existing dams are low-head, or less than 30 feet in height (Ragon 2009). Only about 2% of the available low-head hydropower resource in the U.S. has been developed, leaving more than 70 GW of annual mean potential low-head capacity untapped (Hall 2004). Natel Energy, Inc. is developing a low-head hydropower turbine that operates efficiently at heads less than 6 meters and is cost-effective for deployment across multiple low-head structures. Because of the unique racetrack-like path taken by the prime-movers in the SLH, a flexible powertrain is required. Historically, the only viable technological solution was roller chain. Despite the having the ability to easily attach blades, roller chain is characterized by significant drawbacks, including high cost, wear, and vibration from chordal action. Advanced carbon-#12;fiber-reinforced timing belts have been recently developed which, coupled with a novel belt attachment system developed by Natel Energy, result in a large reduction in moving parts, reduced mass and cost, and elimination of chordal action for increased fatigue life. The work done in this project affirmatively addressed each of the following 3 major uncertainties concerning a timing-belt based hydroEngine —powertrain: 1. Can a belt handle the high torques and power loads demanded by the SLH? (Yes.) 2. Can the SLH blades be mounted to belt with a connection that can withstand the loads encountered in operation? (Yes.) 3. Can the belt, with blade attachments, live through the required cyclic loading? (Yes.) The research adds to the general understanding of sustainable small hydropower systems by using innovative system testing to develop and demonstrate performance of a novel powertrain solution, enabling a new type of hydroelectric turbine to be commercially developed. The technical effectiveness of the methods investigated has been shown to be positive through an extensive design and testing process accommodating many constraints and goals, with a major emphasis on high cycle fatigue life. Economic feasibility of the innovations has been demonstrated through many iterations of design for manufacturability and cost reduction. The project is of benefit to the public because it has helped to develop a solution to a major problem -- despite the large available potential for new low-head hydropower, high capital costs and high levelized cost of electricity (LCOE) continue to be major barriers to project development. The hydroEngine— represents a significant innovation, leveraging novel fluid mechanics and mechanical configuration to allow lower-cost turbine manufacture and development of low head hydropower resources.

  17. DoE Optimally Controlled Flexible Fuel Powertrain System | Department of

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

    Energy DoE Optimally Controlled Flexible Fuel Powertrain System DoE Optimally Controlled Flexible Fuel Powertrain System 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon ft_11_kilmurray.pdf More Documents & Publications Vehicle Technologies Office Merit Review 2015: Next-generation Ultra-Lean Burn Powertrain Next-generation Ultra-Lean Burn Powertrain E85 Optimized Engine through

  18. Powertrain Trends and Future Potential | Department of Energy

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

    Powertrain Trends and Future Potential Powertrain Trends and Future Potential Gasoline and clean diesel engines have the potential to reduce CO2 further as technology for both types of engines continues to evolve PDF icon deer09_rueger.pdf More Documents & Publications SCR Technologies for NOx Reduction Injection System and Engine Strategies for Advanced Emission Standards Advanced Diesel Common Rail Injection System for Future Emission Legislation

  19. Hybrid powertrain system

    DOE Patents [OSTI]

    Hughes, Douglas A.

    2006-08-01

    A powertrain system is provided that includes a first prime mover and change-gear transmission having a first input shaft and a second input shaft. A twin clutch is disposed between the first prime mover and the transmission. The twin clutch includes a first main clutch positioned between the first prime mover and the first input shaft and a second main clutch positioned between the first prime mover and the second input shaft. The powertrain system also includes a second prime mover operably connected to one of the first and second input shafts.

  20. Hybrid powertrain system

    DOE Patents [OSTI]

    Hughes, Douglas A. (Wixom, MI)

    2007-09-25

    A powertrain system is provided that includes a first prime mover and change-gear transmission having a first input shaft and a second input shaft. A twin clutch is disposed between the first prime mover and the transmission. The twin clutch includes a first main clutch positioned between the first prime mover and the first input shaft and a second main clutch positioned between the first prime mover and the second input shaft. The powertrain system also includes a second prime mover operably connected to one of the first and second input shafts.

  1. Integrated Powertrain and Vehicle Technologies for Fuel Efficiency

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

    Improvement and CO2 Reduction | Department of Energy Integrated Powertrain and Vehicle Technologies for Fuel Efficiency Improvement and CO2 Reduction Integrated Powertrain and Vehicle Technologies for Fuel Efficiency Improvement and CO2 Reduction Meeting the most stringent emission standards in the world (EPA2002, EPA2007, EPA2010) required the strength of global organizations EPA2002 emission regulation was associated with a significant drop in engine thermal efficiency; DOE support of

  2. Optimally Controlled Flexible Fuel Powertrain System

    SciTech Connect (OSTI)

    Duncan Sheppard; Bruce Woodrow; Paul Kilmurray; Simon Thwaite

    2011-06-30

    A multi phase program was undertaken with the stated goal of using advanced design and development tools to create a unique combination of existing technologies to create a powertrain system specification that allowed minimal increase of volumetric fuel consumption when operating on E85 relative to gasoline. Although on an energy basis gasoline / ethanol blends typically return similar fuel economy to straight gasoline, because of its lower energy density (gasoline ~ 31.8MJ/l and ethanol ~ 21.1MJ/l) the volume based fuel economy of gasoline / ethanol blends are typically considerably worse. This project was able to define an initial engine specification envelope, develop specific hardware for the application, and test that hardware in both single and multi-cylinder test engines to verify the ability of the specified powertrain to deliver reduced E85 fuel consumption. Finally, the results from the engine testing were used in a vehicle drive cycle analysis tool to define a final vehicle level fuel economy result. During the course of the project, it was identified that the technologies utilized to improve fuel economy on E85 also enabled improved fuel economy when operating on gasoline. However, the E85 fueled powertrain provided improved vehicle performance when compared to the gasoline fueled powertrain due to the improved high load performance of the E85 fuel. Relative to the baseline comparator engine and considering current market fuels, the volumetric fuel consumption penalty when running on E85 with the fully optimized project powertrain specification was reduced significantly. This result shows that alternative fuels can be utilized in high percentages while maintaining or improving vehicle performance and with minimal or positive impact on total cost of ownership to the end consumer. The justification for this project was two-fold. In order to reduce the US dependence on crude oil, much of which is imported, the US Environmental Protection Agency (EPA) developed the Renewable Fuels Standard (RFS) under the Energy Policy Act of 2005. The RFS specifies targets for the amount of renewable fuel to be blended into petroleum based transportation fuels. The goal is to blend 36 billion gallons of renewable fuels into transportation fuels by 2022 (9 billion gallons were blended in 2008). The RFS also requires that the renewable fuels emit fewer greenhouse gasses than the petroleum fuels replaced. Thus the goal of the EPA is to have a more fuel efficient national fleet, less dependent on petroleum based fuels. The limit to the implementation of certain technologies employed was the requirement to run the developed powertrain on gasoline with minimal performance degradation. The addition of ethanol to gasoline fuels improves the fuels octane rating and increases the fuels evaporative cooling. Both of these fuel property enhancements make gasoline / ethanol blends more suitable than straight gasoline for use in downsized engines or engines with increased compression ratio. The use of engine downsizing and high compression ratios as well as direct injection (DI), dual independent cam phasing, external EGR, and downspeeding were fundamental to the fuel economy improvements targeted in this project. The developed powertrain specification utilized the MAHLE DI3 gasoline downsizing research engine. It was a turbocharged, intercooled, DI engine with dual independent cam phasing utilizing a compression ratio of 11.25 : 1 and a 15% reduction in final drive ratio. When compared to a gasoline fuelled 2.2L Ecotec engine in a Chevrolet HHR, vehicle drive cycle predictions indicate that the optimized powertrain operating on E85 would result in a reduced volume based drive cycle fuel economy penalty of 6% compared to an approximately 30% penalty for current technology engines.

  3. Powertrain with powersplit pump input and method of use thereof

    DOE Patents [OSTI]

    Johnson, Kris W. (Peoria, IL); Rose, Charles E. (Metamora, IL)

    2009-04-28

    A powertrain includes an engine operatively connected to a primary power consuming device to transmit power thereto. The powertrain also includes a motor and a pump. The power output of the motor is independent of the power output of the engine. An epicyclic geartrain includes first, second and third members. The first member is operatively connected to the engine to receive power therefrom. The second member is operatively connected to the motor to receive power therefrom. The third member is operatively connected to the pump to transmit power thereto.

  4. Fact #881: July 13, 2015 Powertrain Efficiency Improvements,...

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

    1: July 13, 2015 Powertrain Efficiency Improvements, 2005 to 2013 Fact 881: July 13, 2015 Powertrain Efficiency Improvements, 2005 to 2013 Powertrain efficiency in a recent study ...

  5. Plymouth, Michigan: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    district.12 Registered Energy Companies in Plymouth, Michigan AVL Powertrain Engineering Alte LLC Full Circle Developments Inc Rofin Sinar Technologies Inc References...

  6. Hybrid powertrain system

    DOE Patents [OSTI]

    Grillo, Ricardo C.; O'Neil, Walter K.; Preston, David M.

    2005-09-20

    A hybrid powertrain system is provided that includes a first prime mover having a rotational output, a second prime mover having a rotational output, and a transmission having a main shaft supporting at least two main shaft gears thereon. The transmission includes a first independent countershaft drivingly connected to the first prime mover and including at least one ratio gear supported thereon that meshes with a respective main shaft gear. A second independent countershaft is drivingly connected to the second prime mover and includes at least one ratio gear supported thereon that meshes with a respective main shaft gear. The ratio gears on the first and second countershafts cooperate with the main shaft gears to provide at least one gear ratio between the first and second countershafts and the main shaft. A shift control mechanism selectively engages and disengages the first and second countershafts for rotation with the main shaft.

  7. Heavy-Duty Powertrain and Vehicle Development - A Look Toward 2020 |

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

    Department of Energy and Vehicle Development - A Look Toward 2020 Heavy-Duty Powertrain and Vehicle Development - A Look Toward 2020 Globalization in emissions regulation will be driving freight efficiency improvements and will require heavy-duty engine and powertrain advancements, vehicle improvements, and optimized system integration PDF icon deer11_groeneweg.pdf More Documents & Publications View from the Bridge: Commercial Vehicle Perspective High-Efficiency Engine Technologies

  8. Future Potential of Hybrid and Diesel Powertrains in the U.S. Light-Duty

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

    Vehicle Market | Department of Energy Potential of Hybrid and Diesel Powertrains in the U.S. Light-Duty Vehicle Market Future Potential of Hybrid and Diesel Powertrains in the U.S. Light-Duty Vehicle Market 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Oak Ridge National Laboratory PDF icon 2004_deer_greene.pdf More Documents & Publications Integrated Market Modeling of Hydrogen Transition Scenarios with HyTrans Fact #869: April 20, 2015 Gasoline Direct Injection

  9. Control system for a hybrid powertrain system

    DOE Patents [OSTI]

    Naqvi, Ali K.; Demirovic, Besim; Gupta, Pinaki; Kaminsky, Lawrence A.

    2014-09-09

    A vehicle includes a powertrain with an engine, first and second torque machines, and a hybrid transmission. A method for operating the vehicle includes operating the engine in an unfueled state, releasing an off-going clutch which when engaged effects operation of the hybrid transmission in a first continuously variable mode, and applying a friction braking torque to a wheel of the vehicle to compensate for an increase in an output torque of the hybrid transmission resulting from releasing the off-going clutch. Subsequent to releasing the off-going clutch, an oncoming clutch which when engaged effects operation of the hybrid transmission in a second continuously variable mode is synchronized. Subsequent to synchronization of the oncoming clutch, the oncoming clutch is engaged.

  10. Advanced Powertrain Research Facility Vehicle Test Cell Thermal...

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

    Powertrain Research Facility Vehicle Test Cell Thermal Upgrade Advanced Powertrain Research Facility Vehicle Test Cell Thermal Upgrade 2010 DOE Vehicle Technologies and Hydrogen...

  11. Kettering University Center for Fuel Cell Systems Powertrain...

    Open Energy Info (EERE)

    Kettering University Center for Fuel Cell Systems Powertrain Integration Jump to: navigation, search Name: Kettering University - Center for Fuel Cell Systems & Powertrain...

  12. Shanghai Fuel Cell Vehicle Powertrain Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    Fuel Cell Vehicle Powertrain Co Ltd Jump to: navigation, search Name: Shanghai Fuel Cell Vehicle Powertrain Co Ltd Place: Shanghai Municipality, China Sector: Vehicles Product: A...

  13. Integrated Powertrain and Vehicle Technologies for Fuel Efficiency...

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

    Integrated Powertrain and Vehicle Technologies for Fuel Efficiency Improvement and CO2 Reduction Integrated Powertrain and Vehicle Technologies for Fuel Efficiency Improvement and...

  14. Fact #883 July 27, 2015 Hybrid Powertrains are More Efficient...

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

    3 July 27, 2015 Hybrid Powertrains are More Efficient than Conventional Counterparts Fact 883 July 27, 2015 Hybrid Powertrains are More Efficient than Conventional Counterparts ...

  15. Method for controlling powertrain pumps

    DOE Patents [OSTI]

    Sime, Karl Andrew; Spohn, Brian L; Demirovic, Besim; Martini, Ryan D; Miller, Jean Marie

    2013-10-22

    A method of controlling a pump supplying a fluid to a transmission includes sensing a requested power and an excess power for a powertrain. The requested power substantially meets the needs of the powertrain, while the excess power is not part of the requested power. The method includes sensing a triggering condition in response to the ability to convert the excess power into heat in the transmission, and determining that an operating temperature of the transmission is below a maximum. The method also includes determining a calibrated baseline and a dissipation command for the pump. The calibrated baseline command is configured to supply the fluid based upon the requested power, and the dissipation command is configured to supply additional fluid and consume the excess power with the pump. The method operates the pump at a combined command, which is equal to the calibrated baseline command plus the dissipation command.

  16. Vehicle Systems Integration Laboratory Accelerates Powertrain Development

    ScienceCinema (OSTI)

    None

    2014-06-25

    ORNL's Vehicle Systems Integration (VSI) Laboratory accelerates the pace of powertrain development by performing prototype research and characterization of advanced systems and hardware components. The VSI Lab is capable of accommodating a range of platforms from advanced light-duty vehicles to hybridized Class 8 powertrains with the goals of improving overall system efficiency and reducing emissions.

  17. Magnesium Powertrain Cast Components | Department of Energy

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

    Powertrain Cast Components Magnesium Powertrain Cast Components 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon lm_16_quinn.pdf More Documents & Publications Magnesium Front End Development (AMD 603/604/904) Magnesium Front End Development (AMD 603/604/904) Magnesium Front End Research and Development AMD 604

  18. Fuel Economy Improvements from a Hybrid-Electric/Diesel Powertrain...

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

    Economy Improvements from a Hybrid-ElectricDiesel Powertrain in a Class 4 Parcel Delivery Vehicle Fuel Economy Improvements from a Hybrid-ElectricDiesel Powertrain in a Class 4...

  19. Energy Department Awards $8.4 Million for Projects to Improve Engine and

    Energy Savers [EERE]

    Powertrain Efficiency | Department of Energy 8.4 Million for Projects to Improve Engine and Powertrain Efficiency Energy Department Awards $8.4 Million for Projects to Improve Engine and Powertrain Efficiency September 27, 2011 - 3:12pm Addthis WASHINGTON, D.C. - Secretary Chu today announced $8.4 million over three to four years for suppliers and vehicle manufacturers to develop and demonstrate technologies that increase the efficiency of engines and powertrain systems for future highway

  20. The Meritor Dual Mode Hybrid Powertrain CRADA | Department of Energy

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

    The Meritor Dual Mode Hybrid Powertrain CRADA The Meritor Dual Mode Hybrid Powertrain CRADA 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon vss072_malikoupoulos_2012_o.pdf More Documents & Publications The ArvinMeritor Dual Mode Hybrid Powertrain (DMHP): Opportunities and Potential for Systems Optimization The Meritor Dual Mode Hybrid Powertrain CRADA Autonomous Intelligent Hybrid Propulsion Systems

  1. Method of converting an existing vehicle powertrain to a hybrid powertrain system

    DOE Patents [OSTI]

    Reed, Jr., Richard G. (Royal Oak, MI); Boberg, Evan S. (Hazel Park, MI); Lawrie, Robert E. (Whitmore Lake, MI); Castaing, Francois J. (Bloomfield Township, MI)

    2001-12-25

    A method of converting an existing vehicle powertrain including a manual transmission to a hybrid powertrain system with an automated powertrain transmission. The first step in the method of attaching a gear train housing to a housing of said manual transmission, said gear train housing receiving as end of drive shaft of said transmission and rotatably supporting a gear train assembly. Secondly, mounting an electric motor/generator to said gear train housing and attaching a motor/generator drive shaft of said electric motor/generator to said gear train assembly. Lastly, connecting an electro-mechanical clutch actuator to a friction clutch mechanism of said manual transmission.

  2. Gas Turbine Heavy Hybrid Powertrain Variants. Opportunities and Potential for Systems Optimization

    SciTech Connect (OSTI)

    Smith, David; Chambon, Paul H.

    2015-07-01

    Widespread use of alternative hybrid powertrains is currently inevitable, and many opportunities for substantial progress remain. Hybrid electric vehicles (HEVs) have attracted considerable attention due to their potential to reduce petroleum consumption and greenhouse gas emissions in the transportation sector. This capability is mainly attributed to (a) the potential for downsizing the engine, (b) the potential for recovering energy during braking and thus recharging the energy storage unit, and (c) the ability to minimize the operation of the engine outside of its most efficient brake specific fuel consumption (BSFC) regime. Hybridization of the Class 8, heavy-duty (HD) powertrain is inherently challenging due to the expected long-haul driving requirements and limited opportunities for regenerative braking. The objective of this project is to develop control strategies aiming at optimizing the operation of a Class 8 HEV that features a micro-turbine as the heat engine. The micro-turbine application shows promise in fuel efficiency, even when compared to current diesel engines, and can meet regulated exhaust emissions levels with no exhaust after-treatment system. Both parallel and series HEV variants will be examined to understand the merits of each approach of the micro-turbine to MD advanced powertrain applications. These powertrain configurations enable new paradigms in operational efficiency, particularly in the Class 8 truck fleet. The successful development of these HEV variants will require a thorough technical understanding of the complex interactions between various energy sources and energy consumption components, for various operating modes. PACCAR will be integrating the first generation of their series HEV powertrain with a Brayton Energy micro-turbine into a Class 8 HD truck tractor that has both regional haul and local pick-up and delivery (P&D) components to its drive cycle. The vehicle will be deployed into fleet operation for a demonstration period of six (6) months to assess real world operating benefits of the advanced powertrain. A parallel variant of the micro-turbine powertrain will be built and sent to the ORNL Vehicle Systems Integration Laboratory.

  3. Drive Cycle Powertrain Efficiencies and Trends Derived From EPA Vehicle Dynamometer Results

    SciTech Connect (OSTI)

    Thomas, John F

    2014-01-01

    Vehicle manufacturers among others are putting great emphasis on improving fuel economy (FE) of light-duty vehicles in the U.S. market, with significant FE gains being realized in recent years. The U.S. Environmental Protection Agency (EPA) data indicates that the aggregate FE of vehicles produced for the U.S. market has improved by over 20% from model year (MY) 2005 to 2013. This steep climb in FE includes changes in vehicle choice, improvements in engine and transmission technology, and reducing aerodynamic drag, rolling resistance, and parasitic losses. The powertrain related improvements focus on optimizing in-use efficiency of the transmission and engine as a system, and may make use of what is termed downsizing and/or downspeeding. This study explores quantifying recent improvements in powertrain efficiency, viewed separately from other vehicle alterations and attributes (noting that most vehicle changes are not completely independent). A methodology is outlined to estimate powertrain efficiency for the U.S city and highway cycle tests using data from the EPA vehicle database. Comparisons of common conventional gasoline powertrains for similar MY 2005 and 2013 vehicles are presented, along with results for late-model hybrid electric vehicles, the Nissan Leaf, Chevy Volt and other selected vehicles.

  4. Powertrain system for a hybrid electric vehicle

    DOE Patents [OSTI]

    Reed, Jr., Richard G. (Royal Oak, MI); Boberg, Evan S. (Hazel Park, MI); Lawrie, Robert E. (Whitmore Lake, MI); Castaing, Francois J. (Bloomfield Township, MI)

    1999-08-31

    A hybrid electric powertrain system is provided including an electric motor/generator drivingly engaged with the drive shaft of a transmission. The electric is utilized for synchronizing the rotation of the drive shaft with the driven shaft during gear shift operations. In addition, a mild hybrid concept is provided which utilizes a smaller electric motor than typical hybrid powertrain systems. Because the electric motor is drivingly engaged with the drive shaft of the transmission, the electric motor/generator is driven at high speed even when the vehicle speed is low so that the electric motor/generator provides more efficient regeneration.

  5. Powertrain system for a hybrid electric vehicle

    DOE Patents [OSTI]

    Reed, R.G. Jr.; Boberg, E.S.; Lawrie, R.E.; Castaing, F.J.

    1999-08-31

    A hybrid electric powertrain system is provided including an electric motor/generator drivingly engaged with the drive shaft of a transmission. The electric is utilized for synchronizing the rotation of the drive shaft with the driven shaft during gear shift operations. In addition, a mild hybrid concept is provided which utilizes a smaller electric motor than typical hybrid powertrain systems. Because the electric motor is drivingly engaged with the drive shaft of the transmission, the electric motor/generator is driven at high speed even when the vehicle speed is low so that the electric motor/generator provides more efficient regeneration. 34 figs.

  6. Department of Energy Announces Advanced Vehicle Technology Competition...

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

    ... Resources Board, Clean Cities, dSPACE, A123 Systems, Freescale Semiconductor, AVL Powertrain Engineering, Snap-On Tools, Robert Bosch, Siemens PLM, CD-Adapco and Vector CANtech. ...

  7. Method and apparatus for effecting light-off of a catalytic converter in a hybrid powertrain system

    DOE Patents [OSTI]

    Roos, Bryan Nathaniel; Spohn, Brian L

    2013-07-02

    A powertrain system includes a hybrid transmission and an internal combustion engine coupled to an exhaust aftertreatment device. A method for operating the powertrain system includes operating the hybrid transmission to generate tractive torque responsive to an operator torque request with the internal combustion engine in an engine-off state so long as the tractive torque is less than a threshold. The internal combustion engine is operated in an engine-on state at preferred operating conditions to effect light-off of the exhaust aftertreatment device and the hybrid transmission is coincidentally operated to generate tractive torque responsive to the operator torque request when the operator torque request exceeds the threshold. The internal combustion engine is then operated in the engine-on state to generate tractive torque responsive to the operator torque request.

  8. Impact of Vehicle Efficiency Improvements on Powertrain Design | Department

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

    of Energy Vehicle Efficiency Improvements on Powertrain Design Impact of Vehicle Efficiency Improvements on Powertrain Design Explores how various chassis and complete vehicle improvements offer opportunities for energy recuperation on long-haul truck duty cycle, and how they impact powertrain requirements PDF icon deer12_mclaughlin.pdf More Documents & Publications Volvo Super Truck Overview and Approach Vehicle Technologies Office Merit Review 2014: Development and Demonstration of a

  9. Advanced Methods Approach to Hybrid Powertrain Systems Optimization of a

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

    Transit Bus Application | Department of Energy Methods Approach to Hybrid Powertrain Systems Optimization of a Transit Bus Application Advanced Methods Approach to Hybrid Powertrain Systems Optimization of a Transit Bus Application Design refinements of the GTB-40 mass-transit bus include new optimization processes, subsystem, and powertrain system requirements along with traction motor, battery, and APU development and integration PDF icon deer09_hennessy.pdf More Documents &

  10. Method and apparatus for controlling a powertrain system including a multi-mode transmission

    DOE Patents [OSTI]

    Hessell, Steven M.; Morris, Robert L.; McGrogan, Sean W.; Heap, Anthony H.; Mendoza, Gil J.

    2015-09-08

    A powertrain including an engine and torque machines is configured to transfer torque through a multi-mode transmission to an output member. A method for controlling the powertrain includes employing a closed-loop speed control system to control torque commands for the torque machines in response to a desired input speed. Upon approaching a power limit of a power storage device transferring power to the torque machines, power limited torque commands are determined for the torque machines in response to the power limit and the closed-loop speed control system is employed to determine an engine torque command in response to the desired input speed and the power limited torque commands for the torque machines.

  11. ETX-I: First generation single-shaft electric propulsion system program: Volume 1, Powertrain: Final report

    SciTech Connect (OSTI)

    Not Available

    1987-02-01

    In 1981, discussions between Ford and General Electric (GE) evolved a concept for an advanced electric vehicle powertrain. The concept involved a combination of technology from Ford and GE that would result in a unique powertrain based on a motor and transmission concentric with the drive wheel axis, a concept originally proposed for use with Wankel engines, and based on the use of a ''hermetic,'' three-phase, alternating current (ac) motor, which is currently in high volume production in the necessary horsepower range. An additional benefit of this configuration is the ability to use a single fluid for cooling of the motor and lubrication of the transaxle. This volume describes the powertrain portion of the ETX-I program.

  12. Heavy-Duty Powertrain and Vehicle Development - A Look Toward...

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

    Heavy-Duty Powertrain and Vehicle Development - A Look Toward 2020 Globalization in emissions regulation will be driving freight efficiency improvements and will require heavy-duty ...

  13. Advanced Methods Approach to Hybrid Powertrain Systems Optimization...

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

    Advanced Methods Approach to Hybrid Powertrain Systems Optimization of a Transit Bus ... system requirements along with traction motor, battery, and APU development and ...

  14. The ArvinMeritor Dual Mode Hybrid Powertrain (DMHP): Opportunities...

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

    The ArvinMeritor Dual Mode Hybrid Powertrain (DMHP): Opportunities and Potential for Systems Optimization 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program ...

  15. Volvo SuperTruck - Powertrain Technologies for Efficiency Improvement |

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

    Department of Energy 2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ace060_amar_2012_o.pdf More Documents & Publications Volvo SuperTruck - Powertrain Technologies for Efficiency Improvement Vehicle Technologies Office Merit Review 2015: Volvo SuperTruck - Powertrain

  16. Volvo SuperTruck - Powertrain Technologies for Efficiency Improvement |

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

    Department of Energy 3 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ace060_amar_2013_o.pdf More Documents & Publications Vehicle Technologies Office Merit Review 2015: Volvo SuperTruck - Powertrain Technologies for Efficiency Improvement Volvo SuperTruck - Powertrain

  17. The Role Of IC Engines In Future Energy Use | Department of Energy

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

    Of IC Engines In Future Energy Use The Role Of IC Engines In Future Energy Use Reviews future market trends and forecasts, and future engine challenges and research focus PDF icon deer11_blaxill.pdf More Documents & Publications Next-generation Ultra-Lean Burn Powertrain Vehicle Technologies Office Merit Review 2015: Next-generation Ultra-Lean Burn Powertrain Vehicle Technologies Office Merit Review 2014: Next-Generation Ultra Lean Burn Powertrain

  18. Adaptive powertrain control for plugin hybrid electric vehicles

    DOE Patents [OSTI]

    Kedar-Dongarkar, Gurunath; Weslati, Feisel

    2013-10-15

    A powertrain control system for a plugin hybrid electric vehicle. The system comprises an adaptive charge sustaining controller; at least one internal data source connected to the adaptive charge sustaining controller; and a memory connected to the adaptive charge sustaining controller for storing data generated by the at least one internal data source. The adaptive charge sustaining controller is operable to select an operating mode of the vehicle's powertrain along a given route based on programming generated from data stored in the memory associated with that route. Further described is a method of adaptively controlling operation of a plugin hybrid electric vehicle powertrain comprising identifying a route being traveled, activating stored adaptive charge sustaining mode programming for the identified route and controlling operation of the powertrain along the identified route by selecting from a plurality of operational modes based on the stored adaptive charge sustaining mode programming.

  19. Hybrid powertrain system including smooth shifting automated transmission

    DOE Patents [OSTI]

    Beaty, Kevin D.; Nellums, Richard A.

    2006-10-24

    A powertrain system is provided that includes a prime mover and a change-gear transmission having an input, at least two gear ratios, and an output. The powertrain system also includes a power shunt configured to route power applied to the transmission by one of the input and the output to the other one of the input and the output. A transmission system and a method for facilitating shifting of a transmission system are also provided.

  20. Advanced Powertrain Research Facility Vehicle Test Cell Thermal Upgrade |

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

    Department of Energy Powertrain Research Facility Vehicle Test Cell Thermal Upgrade Advanced Powertrain Research Facility Vehicle Test Cell Thermal Upgrade 2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. PDF icon vss030_keller_2010_p.pdf More Documents & Publications AVTA: Quantifying the Effects of Idle Stop Systems on Fuel Economy Evaluation and Adaptation of 5-Cycle Fuel Economy Testing and

  1. Advanced Engine Trends, Challenges and Opportunities | Department of Energy

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

    Engine Trends, Challenges and Opportunities Advanced Engine Trends, Challenges and Opportunities Presents mega trends for future powertrains facing energy diversity and powertrain efficiency issues PDF icon deer11_taub.pdf More Documents & Publications Looking From A Hilltop: Automotive Propulsion System Technology Quarterly Biomass Program/Clean Cities State Web Conference: May 6, 2010 Advanced Propulsion Technology Strategy

  2. Look-ahead Driver Feedback and Powertrain Management | Department of Energy

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

    Look-ahead Driver Feedback and Powertrain Management Look-ahead Driver Feedback and Powertrain Management 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon vss087_tang_2012_o.pdf More Documents & Publications Look-Ahead Driver Feedback and Powertrain Management Vehicle Technologies Office Merit Review 2014: Look-Ahead Driver Feedback and Powertrain Management Legacy Fleet Improvements

  3. Comparative Study of Hybrid Powertrains on Fuel Saving, Emissions, and Component Energy Loss in HD Trucks

    SciTech Connect (OSTI)

    Gao, Zhiming; FINNEY, Charles E A; Daw, C Stuart; LaClair, Tim J; Smith, David E

    2014-01-01

    We compared parallel and series hybrid powertrains on fuel economy, component energy loss, and emissions control in Class 8 trucks over both city and highway driving. A comprehensive set of component models describing battery energy, engine fuel efficiency, emissions control, and power demand interactions for heavy duty (HD) hybrids has been integrated with parallel and series hybrid Class 8 trucks in order to identify the technical barriers of these hybrid powertrain technologies. The results show that series hybrid is absolutely negative for fuel economy benefit of long-haul trucks due to an efficiency penalty associated with the dual-step conversions of energy (i.e. mechanical to electric to mechanical). The current parallel hybrid technology combined with 50% auxiliary load reduction could elevate 5-7% fuel economy of long-haul trucks, but a profound improvement of long-haul truck fuel economy requires additional innovative technologies for reducing aerodynamic drag and rolling resistance losses. The simulated emissions control indicates that hybrid trucks reduce more CO and HC emissions than conventional trucks. The simulated results further indicate that the catalyzed DPF played an important role in CO oxidations. Limited NH3 emissions could be slipped from the Urea SCR, but the average NH3 emissions are below 20 ppm. Meanwhile our estimations show 1.5-1.9% of equivalent fuel-cost penalty due to urea consumption in the simulated SCR cases.

  4. Fact #883 July 27, 2015 Hybrid Powertrains are More Efficient than

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

    Conventional Counterparts | Department of Energy 3 July 27, 2015 Hybrid Powertrains are More Efficient than Conventional Counterparts Fact #883 July 27, 2015 Hybrid Powertrains are More Efficient than Conventional Counterparts SUBSCRIBE to the Fact of the Week Powertrain efficiency in a recent study was defined as the ratio of tractive work (integrated power) needed for a vehicle to complete a drive cycle divided by the fuel energy consumed. In short, this is a measure of how good the

  5. Vehicle Technologies Office Merit Review 2015: Powertrain Controls Optimization for Heavy Duty Line Haul Trucks

    Broader source: Energy.gov [DOE]

    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 powertrain...

  6. Heavy-Duty Powertrain DevelopmentCurrent Status and Future Opportuniti...

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

    DevelopmentCurrent Status and Future Opportunities Heavy-Duty Powertrain DevelopmentCurrent Status and Future Opportunities Presentation given at the 16th Directions in ...

  7. Vehicle Technologies Office Merit Review 2014: Powertrain Controls Optimization for Heavy Duty Line Haul Trucks

    Broader source: Energy.gov [DOE]

    Presentation given by Oak Ridge National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about powertrain...

  8. Optimally Controlled Flexible Fuel Powertrain System

    SciTech Connect (OSTI)

    Hakan Yilmaz; Mark Christie; Anna Stefanopoulou

    2010-12-31

    The primary objective of this project was to develop a true Flex Fuel Vehicle capable of running on any blend of ethanol from 0 to 85% with reduced penalty in usable vehicle range. A research and development program, targeting 10% improvement in fuel economy using a direct injection (DI) turbocharged spark ignition engine was conducted. In this project a gasoline-optimized high-technology engine was considered and the hardware and configuration modifications were defined for the engine, fueling system, and air path. Combined with a novel engine control strategy, control software, and calibration this resulted in a highly efficient and clean FFV concept. It was also intended to develop robust detection schemes of the ethanol content in the fuel integrated with adaptive control algorithms for optimized turbocharged direct injection engine combustion. The approach relies heavily on software-based adaptation and optimization striving for minimal modifications to the gasoline-optimized engine hardware system. Our ultimate objective was to develop a compact control methodology that takes advantage of any ethanol-based fuel mixture and not compromise the engine performance under gasoline operation.

  9. Thermal Simulation of Advanced Powertrain Systems

    Broader source: Energy.gov [DOE]

    Under this project, the Volvo complete vehicle model was modified to include engine and exhaust system thermal outputs and cooling system to enable WHR simulations from a system perspective.

  10. PHEV Engine Cold Start Emissions Management | Department of Energy

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

    Cold Start Emissions Management PHEV Engine Cold Start Emissions Management Coordination of engine and powertrain supervisory control strategies to minimize cold start emissions PDF icon p-05_chambon.pdf More Documents & Publications PHEV Engine Control and Energy Management Strategy PHEV Engine Control and Energy Management Strategy PHEV Engine Control and Energy Management Strategy

  11. Vehicle Technologies Office Merit Review 2015: Ultra Efficient Light Duty Powertrain with Gasoline Low Temperature Combustion

    Broader source: Energy.gov [DOE]

    Presentation given by Delphi Powertrain at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about ultra efficient light duty...

  12. Vehicle Technologies Office Merit Review 2014: Volvo SuperTruck- Powertrain Technologies for Efficiency Improvement

    Broader source: Energy.gov [DOE]

    Presentation given by Volvo at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about Volvo SuperTruck powertrain...

  13. Vehicle Technologies Office Merit Review 2015: Next-generation Ultra-Lean Burn Powertrain

    Broader source: Energy.gov [DOE]

    Presentation given by MAHLE Powertrain LLC at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about next-generation ultra...

  14. Vehicle Technologies Office Merit Review 2014: Next-Generation Ultra Lean Burn Powertrain

    Broader source: Energy.gov [DOE]

    Presentation given by MAHLE Powertrain, LLC at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about next-generation ultra...

  15. Method and apparatus for operating a powertrain system upon detecting a stuck-closed clutch

    DOE Patents [OSTI]

    Hansen, R. Anthony

    2014-02-18

    A powertrain system includes a multi-mode transmission having a plurality of torque machines. A method for controlling the powertrain system includes identifying all presently applied clutches including commanded applied clutches and the stuck-closed clutch upon detecting one of the torque-transfer clutches is in a stuck-closed condition. A closed-loop control system is employed to control operation of the multi-mode transmission accounting for all the presently applied clutches.

  16. Hybrid vehicle powertrain system with power take-off driven vehicle accessory

    DOE Patents [OSTI]

    Beaty, Kevin D.; Bockelmann, Thomas R.; Zou, Zhanijang; Hope, Mark E.; Kang, Xiaosong; Carpenter, Jeffrey L.

    2006-09-12

    A hybrid vehicle powertrain system includes a first prime mover, a first prime mover driven power transmission mechanism having a power take-off adapted to drive a vehicle accessory, and a second prime mover. The second prime mover is operable to drive the power transmission mechanism alone or in combination with the first prime mover to provide power to the power take-off through the power transmission mechanism. The invention further includes methods for operating a hybrid vehicle powertrain system.

  17. The ArvinMeritor Dual Mode Hybrid Powertrain (DMHP): Opportunities and

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

    Potential for Systems Optimization | Department of Energy The ArvinMeritor Dual Mode Hybrid Powertrain (DMHP): Opportunities and Potential for Systems Optimization The ArvinMeritor Dual Mode Hybrid Powertrain (DMHP): Opportunities and Potential for Systems Optimization 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon vss062_smith_2011_p.pdf More Documents & Publications Vehicle Systems Integration (VSI) Research

  18. Fuel Economy Improvements from a Hybrid-Electric/Diesel Powertrain in a

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

    Class 4 Parcel Delivery Vehicle | Department of Energy Economy Improvements from a Hybrid-Electric/Diesel Powertrain in a Class 4 Parcel Delivery Vehicle Fuel Economy Improvements from a Hybrid-Electric/Diesel Powertrain in a Class 4 Parcel Delivery Vehicle The goal of this project is to provide data to help bridge the gap between R&D and the commercial availability of advanced vehicle technologies that reduce petroleum use in the U.S. and improve air quality. PDF icon p-13_thornton.pdf

  19. Future Directions in Engines and Fuels | Department of Energy

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

    Future directions in engines and fuels, powertrains and vehicle system review. PDF icon deer10_tatur.pdf More Documents & Publications A View from the Bridge Boosting Small Engines to High Performance - Boosting Systems and Combustion Development Methodology Further improvement of conventional diesel NOx aftertreatment concepts as pathway for SULEV

  20. Internal Combustion Engine Basics | Department of Energy

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

    Internal Combustion Engine Basics Internal Combustion Engine Basics November 22, 2013 - 2:02pm Addthis Internal combustion engines provide outstanding drivability and durability, with more than 250 million highway transportation vehicles in the United States relying on them. Along with gasoline or diesel, they can also utilize renewable or alternative fuels (e.g., natural gas, propane). They can also be combined with hybrid electric powertrains to increase fuel economy or plug-in hybrid electric

  1. Powertrain Controls Optimization for HD Hybrid Line Haul Trucks - FY2014 Annual Report

    SciTech Connect (OSTI)

    Smith, David E.

    2014-12-01

    This is a vehicle system level project, encompassing analytical modeling and supervisory controls development as well as experimental verification/validation testing at the component, powertrain, and full vehicle system level. This project supports the goal of petroleum consumption reduction for medium and heavy trucks through the development of advanced hybrid technologies and control systems. VSST has invested previously in R&D to support hybrid energy storage systems (Li-ion plus ultra-caps) for light duty, passenger car applications. This research will be extended to the MD and HD sector where current battery technology is not mature enough to handle the substantial regenerative braking power levels these trucks are capable of producing. With this hybrid energy storage system, substantial gains in overall vehicle efficiency are possible. In addition, advanced combustion technologies, such as RCCI, will be implemented into an advanced hybrid powertrain for a Class 8 line haul application. This powertrain, leveraged from other VSST work (Meritor, a current ORNL/VSST partner), is ideal for taking advantage of the benefits of RCCI operation due to its series hybrid mode of operation. Emissions control is also a focus of this project, especially due to the fact that RCCI creates a low temperature exhaust stream that must addressed.

  2. Integrated Vehicle and Powertrain Technology for EPA 2010 and Beyond

    Broader source: Energy.gov [DOE]

    Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT).

  3. The Role of the Internal Combustion Engine in our Energy Future |

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

    Department of Energy the Internal Combustion Engine in our Energy Future The Role of the Internal Combustion Engine in our Energy Future Reviews heavy-duty vehicle market, alternatives to internal combustion engines, and pathways to increasing diesel engine efficiency PDF icon deer11_greszler.pdf More Documents & Publications High Fuel Economy Heavy-Duty Truck Engine View from the Bridge: Commercial Vehicle Perspective Impact of Vehicle Efficiency Improvements on Powertrain Design

  4. Supertruck- Improving Transportation Efficiency through Integrated Vehicle, Engine and Powertrain Research

    Broader source: Energy.gov [DOE]

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

  5. Reducing the Particulate Emission Numbers in DI Gasoline Engines |

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

    Department of Energy the Particulate Emission Numbers in DI Gasoline Engines Reducing the Particulate Emission Numbers in DI Gasoline Engines Formation of droplets was minimized through optimization of fuel vaporization and distribution avoiding air/fuel zones richer than stoichiometric and temperatures that promote particle formation PDF icon deer10_klindt.pdf More Documents & Publications Bosch Powertrain Technologies Vehicle Emissions Review - 2012 Ethanol Effects on Lean-Burn and

  6. Engineering

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

    Includes Engineering Standards Manual, Master Specifications Index, Drafting Manual, Design Guides, and more. IHS Standards Expert login information Collections include ANSI,...

  7. A European Perspective of EURO 5/U.S. 07 Heavy-Duty Engine Technologies and

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

    Their Related Consequences | Department of Energy A European Perspective of EURO 5/U.S. 07 Heavy-Duty Engine Technologies and Their Related Consequences A European Perspective of EURO 5/U.S. 07 Heavy-Duty Engine Technologies and Their Related Consequences 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Volvo Powertrain PDF icon 2004_deer_fayolle.pdf More Documents & Publications SCR Systems for Heavy Duty Trucks: Progress Towards Meeting Euro 4 Emission Standards

  8. Engineering

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

    Engineering /science-innovation/_assets/images/icon-science.jpg Engineering National security depends on science and technology. The United States relies on Los Alamos National Laboratory for the best of both. No place on Earth pursues a broader array of world-class scientific endeavors. Engineering New type of laser to help defeat threats to U.S. Navy. LANL successfully tested a new high-current electron injector, a device that can be scaled up to produce the electrons needed to build a

  9. engineering

    National Nuclear Security Administration (NNSA)

    an award last month for his 3D printing innovation. It could revolutionize additive manufacturing.

    Lawrence Livermore Lab engineer Bryan Moran wasn't necessarily...

  10. ENGINEERING

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

    ENGINEERING the Future of ENERGY Regional University Alliance National Energy Technology Laboratory Office of Research and Development The Future of Energy The time to redraw America's energy blueprint is now. The challenges we face today are the most critical in decades-from the impact of energy use on global ecosystems to the difficulties of efficiently harnessing our natural resources. Because energy is fundamental to human welfare, we must develop sustainable systems that make clean,

  11. COMPARISON OF PARALLEL AND SERIES HYBRID POWERTRAINS FOR TRANSIT BUS APPLICATION

    SciTech Connect (OSTI)

    Gao, Zhiming; Daw, C Stuart; Smith, David E; Jones, Perry T; LaClair, Tim J; Parks, II, James E

    2016-01-01

    The fuel economy and emissions of both conventional and hybrid buses equipped with emissions aftertreatment were evaluated via computational simulation for six representative city bus drive cycles. Both series and parallel configurations for the hybrid case were studied. The simulation results indicate that series hybrid buses have the greatest overall advantage in fuel economy. The series and parallel hybrid buses were predicted to produce similar CO and HC tailpipe emissions but were also predicted to have reduced NOx tailpipe emissions compared to the conventional bus in higher speed cycles. For the New York bus cycle (NYBC), which has the lowest average speed among the cycles evaluated, the series bus tailpipe emissions were somewhat higher than they were for the conventional bus, while the parallel hybrid bus had significantly lower tailpipe emissions. All three bus powertrains were found to require periodic active DPF regeneration to maintain PM control. Plug-in operation of series hybrid buses appears to offer significant fuel economy benefits and is easily employed due to the relatively large battery capacity that is typical of the series hybrid configuration.

  12. Powertrain Component Inspection from Mid-Level Blends Vehicle Aging Study

    SciTech Connect (OSTI)

    Shoffner, Brent; Johnson, Ryan; Heimrich, Martin J.; Lochte, Michael

    2010-11-01

    The Energy Independence and Security Act of 2007 calls on the nation to significantly increase its use of renewable fuels to meet its transportation energy needs. The law expands the renewable fuel standard to require use of 36 billion gallons of renewable fuel by 2022. Given that ethanol is the most widely used renewable fuel in the U.S. market, ethanol will likely make up a significant portion of the 36-billion-gallon requirement. The vast majority of ethanol used in the United States is blended with gasoline to create E10-gasoline with up to 10% ethanol. The remaining ethanol is sold in the form of E85 - a gasoline blend with as much as 85% ethanol that can only be used in flexible-fuel vehicles (FFVs). Consumption of E85 is at present limited by both the size of the FFV fleet and the number of E85 fueling stations. Gasoline consumption in the United States is currently about 140 billion gallons per year; thus the maximum use of ethanol as E10 is only about 14 billion gallons. While the U.S. Department of Energy (DOE) remains committed to expanding the E85 infrastructure, that market represented less than 1% of the ethanol consumed in 2010 and will not be able to absorb projected volumes of ethanol in the near term. Because of these factors, DOE and others have been assessing the viability of using mid-level ethanol blends (E15 or E20) as a way to accommodate growing volumes of ethanol. The DOE Mid-Level Ethanol Blends Test Program has been under way since 2007, supported jointly by the Office of the Biomass Program and the Vehicle Technologies Program. One of the larger projects, the Catalyst Durability Study, or Vehicle Aging Study, will be completed early in calendar year 2011. The following report describes a subproject of the Vehicle Aging Study in which powertrain components from 18 of the vehicles were examined at Southwest Research Institute under contract to Oak Ridge National Laboratory (ORNL).

  13. Property:NrelPartner | Open Energy Information

    Open Energy Info (EERE)

    property. (previous 25) (next 25) 1 1366 Technologies + true + 3 3M + true + A A.O. Smith + true + A123Systems + true + AAON + true + AQUA Products + true + AVL Powertrain...

  14. Method and apparatus for selectively controlling the speed of an engine

    DOE Patents [OSTI]

    Davis, Roy Inge (Saline, MI)

    2001-02-27

    A control assembly 12 for use within a vehicle 10 having an engine 14 and which selectively controls the speed of the engine 14 in order to increase fuel efficiency and to effect relatively smooth starting and stopping of the engine. Particularly, in one embodiment, control assembly 12 cooperatively operates with a starter/alternator assembly 20 and is adapted for use with hybrid vehicles employing a start/stop powertrain assembly, wherein fuel efficiency is increased by selectively stopping engine operation when the vehicle has stopped.

  15. FY11 annual Report: PHEV Engine Control and Energy Management Strategy

    SciTech Connect (OSTI)

    Chambon, Paul H

    2011-10-01

    Objectives are to: (1) Investigate novel engine control strategies targeted at rapid engine/catalyst warming for the purpose of mitigating tailpipe emissions from plug-in hybrid electric vehicles (PHEV) exposed to multiple engine cold start events; and (2) Validate and optimize hybrid supervisory control techniques developed during previous and on-going research projects by integrating them into the vehicle level control system and complementing them with the modified engine control strategies in order to further reduce emissions during both cold start and engine re-starts. Approach used are: (1) Perform a literature search of engine control strategies used in conventional powertrains to reduce cold start emissions; (2) Develop an open source engine controller providing full access to engine control strategies in order to implement new engine/catalyst warm-up behaviors; (3) Modify engine cold start control algorithms and characterize impact on cold start behavior; and (4) Develop an experimental Engine-In-the-Loop test stand in order to validate control methodologies and verify transient thermal behavior and emissions of the real engine when combined with a virtual hybrid powertrain. Some major accomplishments are: (1) Commissioned a prototype engine controller on a GM Ecotec 2.4l direct injected gasoline engine on an engine test cell at the University of Tennessee. (2) Obtained from Bosch (with GM's approval) an open calibration engine controller for a GM Ecotec LNF 2.0l Gasoline Turbocharged Direct Injection engine. Bosch will support the bypass of cold start strategies if calibration access proves insufficient. The LNF engine and its open controller were commissioned on an engine test cell at ORNL. (3) Completed a literature search to identify key engine cold start control parameters and characterized their impact on the real engine using the Bosch engine controller to calibrate them. (4) Ported virtual hybrid vehicle model from offline simulation environment to real-time Hardware-In-the-Loop platform.

  16. Heavy-Duty Powertrain DevelopmentCurrent Status and Future Opportunities

    Broader source: Energy.gov [DOE]

    Presentation given at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010.

  17. Enabling High Efficiency Ethanol Engines

    SciTech Connect (OSTI)

    Szybist, J.; Confer, K.

    2011-03-01

    Delphi Automotive Systems and ORNL established this CRADA to explore the potential to improve the energy efficiency of spark-ignited engines operating on ethanol-gasoline blends. By taking advantage of the fuel properties of ethanol, such as high compression ratio and high latent heat of vaporization, it is possible to increase efficiency with ethanol blends. Increasing the efficiency with ethanol-containing blends aims to remove a market barrier of reduced fuel economy with E85 fuel blends, which is currently about 30% lower than with petroleum-derived gasoline. The same or higher engine efficiency is achieved with E85, and the reduction in fuel economy is due to the lower energy density of E85. By making ethanol-blends more efficient, the fuel economy gap between gasoline and E85 can be reduced. In the partnership between Delphi and ORNL, each organization brought a unique and complementary set of skills to the project. Delphi has extensive knowledge and experience in powertrain components and subsystems as well as overcoming real-world implementation barriers. ORNL has extensive knowledge and expertise in non-traditional fuels and improving engine system efficiency for the next generation of internal combustion engines. Partnering to combine these knowledge bases was essential towards making progress to reducing the fuel economy gap between gasoline and E85. ORNL and Delphi maintained strong collaboration throughout the project. Meetings were held regularly, usually on a bi-weekly basis, with additional reports, presentations, and meetings as necessary to maintain progress. Delphi provided substantial hardware support to the project by providing components for the single-cylinder engine experiments, engineering support for hardware modifications, guidance for operational strategies on engine research, and hardware support by providing a flexible multi-cylinder engine to be used for optimizing engine efficiency with ethanol-containing fuels.

  18. System and method of DPF passive enhancement through powertrain torque-speed management

    DOE Patents [OSTI]

    Sujan, Vivek A.; Frazier, Timothy R.

    2015-11-24

    This disclosure provides a method and system for determining recommendations for vehicle operation that reduce soot production in view of a diesel particulate filter (DPF) of an exhaust aftertreatment system. Recommendations generated can reduce excessive particulate matter (PM) production during transient engine events and provide for operating conditions favorable for passive regeneration. In this way, less frequent active regeneration of the DPF is needed and/or more opportunities are provided for passive regeneration. The system and method can utilize location and terrain information to anticipate and project a window of operation in view of reducing soot production and soot loading of the DPF, or provide the operator with instruction when such opportunities are present or will soon be encountered.

  19. Engineering Technician

    Broader source: Energy.gov [DOE]

    Alternate Title(s):Civil Engineering Technician; Electrical Engineering Technician; Mechanical Engineering Technician; Environmental Engineering Technician

  20. Efficiency Improvement through Reduction in Friction and Wear in Powertrain Systems

    SciTech Connect (OSTI)

    Michael Killian

    2009-09-30

    The objective of this project is to improve the efficiency of truck drivelines through reduction of friction and parasitic losses in transmission and drive axles. Known efficiencies for these products exceeded 97 percent, so the task was not trivial. The project relied on a working relationship between modeling and hardware testing. Modeling was to shorten the development cycle by guiding the selection of materials, processes and strategies. Bench top and fixture tests were to validate the models. Modeling was performed at a world class, high academic level, but in the end, modeling did not impact the hardware development as much as intended. Insights leading to the most significant accomplishments came from bench top and fixture tests and full scale dynamometer tests. A key development in the project was the formulation of the implementation strategy. Five technical elements with potential to minimize friction and parasitic losses were identified. These elements included churning, lubrication, surface roughness, coatings and textures. An interesting fact is that both Caterpillar and Eaton independently converged on the same set of technical elements in formulating their implementation strategies. Exploiting technical elements of the implementation strategy had a positive impact on transmission and drive axle efficiencies. During one dynamometer test of an Eaton Best Tech 1 transmission, all three gear ranges tested: Under drive, direct drive and over drive, showed efficiencies greater than 99 percent. Technology boosts to efficiency for transmissions reached 1 percent, while efficiency improvements to drive axle pushed 2 percent. These advancements seem small, but the accomplishment is large considering that these products normally run at greater than 97 percent efficiency. Barriers and risks to implementing these technology elements are clear. Schemes using a low fill sump and spray tubes endanger the gears and bearings by lubricant starvation. Gear coatings have exhibited durability issues, stripping away under conditions less demanding than 750,000 miles in service on the road. Failed coatings compound the problem by contaminating the lubricant with hard particles. Under the most severe conditions, super finished surfaces may polish further, reaching a surface roughness unable to support the critical oil film thickness. Low viscosity and low friction lubricants may not protect the gears and bearings adequately leading to excessive pitting, wear and noise. Additives in low friction oils may not stay in solution or suspended thus settling to the bottom and unavailable when they are needed most. Technical barriers and risks can be overcome through engineering, but two barriers remain formidable: (1) cost of the technology and (2) convincing fleet owners that the technology provides a tangible benefit. Dry sumps lower lubricant operating temperatures so the removal of heat exchangers and hoses and reduced demand on engine cooling systems justify their use. The benefits of surface texturing are varied and remain unproven. Lubricant costs seem manageable, but the cost of super finishing and gear coating are high. These are issues of scale and processing technology. Going across the board with gear super finishing and coating will reduce costs. Pushing the envelope to applications with higher torque and higher power density should drive the adoption of these technologies. Fleet owners are an educated and seasoned lot. Only technology measureable in dollars returned is used on truck fleets. To convince fleet owners of the benefit of these technologies, new precision in measuring fuel efficiency must be introduced. Legislation for a minimum standard in truck miles per gallon would also enable the use of these technologies. Improving the efficiency of truck transmissions and axle will make a noticeable impact on the fuel consumption by heavy vehicles in the United States. However, the greatest benefit will come when all the individual efficiency technologies like hybrid power, aerodynamic fairings, auxiliary power units, super

  1. EERE Success Story- Chrysler and Partners Achieve 25% Fuel Economy Improvement in Light-Duty Advanced Technology Powertrain

    Broader source: Energy.gov [DOE]

    Internal combustion engines have the potential to become substantially more efficient, with laboratory tests indicating that new technologies could increase passenger vehicle fuel economy by more...

  2. 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.

  3. A MultiAir®/MultiFuel Approach to Enhancing Engine System Efficiency

    SciTech Connect (OSTI)

    Reese, Ronald

    2015-05-20

    FCA US LLC (formally known as Chrysler Group LLC, and hereinafter “Chrysler”) was awarded an American Recovery and Reinvestment Act (ARRA) funded project by the Department of Energy (DOE) titled “A MultiAir®/MultiFuel Approach to Enhancing Engine System Efficiency” (hereinafter “project”). This award was issued after Chrysler submitted a proposal for Funding Opportunity Announcement DE-FOA- 0000079, “Systems Level Technology Development, Integration, and Demonstration for Efficient Class 8 Trucks (SuperTruck) and Advanced Technology Powertrains for Light-Duty Vehicles (ATP-LD).” Chrysler started work on this project on June 01, 2010 and completed testing activities on August 30, 2014. Overall objectives of this project were; Demonstrate a 25% improvement in combined Federal Test Procedure (FTP) City and Highway fuel economy over a 2009 Chrysler minivan; Accelerate the development of highly efficient engine and powertrain systems for light-duty vehicles, while meeting future emissions standards; and Create and retain jobs in accordance with the American Recovery and Reinvestment Act of 2009

  4. Uranium atomic vapor laser isotope separation (AVL1S)

    SciTech Connect (OSTI)

    Beeler, R.G.; Heestand, G.M.

    1992-12-01

    The high cost associated with gaseous diffusion technology has fostered world-wide competition in the uranium enrichment market. Enrichment costs based on AVLIS technology are projected to be a factor of about three to five times lower. Full scale AVLIS equipment has been built and its performance is being demonstrated now at LLNL. An overview of the AVLIS process will be discussed and key process paramenters will be identified. Application of AVLIS technologies to non-uranium systems will also be highlighted. Finally, the vaporization process along with some key parameters will be discussed.

  5. Supertruck - Improving Transportation Efficiency through Integrated...

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

    Improving Transportation Efficiency through Integrated Vehicle, Engine and Powertrain Research Supertruck - Improving Transportation Efficiency through Integrated Vehicle, Engine ...

  6. Methodology for Calculating Cost-per-Mile for Current and Future Vehicle Powertrain Technologies, with Projections to 2024: Preprint

    SciTech Connect (OSTI)

    Ruth, M.; Timbario, T. A.; Timbario, T. J.; Laffen, M.

    2011-01-01

    Currently, several cost-per-mile calculators exist that can provide estimates of acquisition and operating costs for consumers and fleets. However, these calculators are limited in their ability to determine the difference in cost per mile for consumer versus fleet ownership, to calculate the costs beyond one ownership period, to show the sensitivity of the cost per mile to the annual vehicle miles traveled (VMT), and to estimate future increases in operating and ownership costs. Oftentimes, these tools apply a constant percentage increase over the time period of vehicle operation, or in some cases, no increase in direct costs at all over time. A more accurate cost-per-mile calculator has been developed that allows the user to analyze these costs for both consumers and fleets. The calculator was developed to allow simultaneous comparisons of conventional light-duty internal combustion engine (ICE) vehicles, mild and full hybrid electric vehicles (HEVs), and fuel cell vehicles (FCVs). This paper is a summary of the development by the authors of a more accurate cost-per-mile calculator that allows the user to analyze vehicle acquisition and operating costs for both consumer and fleets. Cost-per-mile results are reported for consumer-operated vehicles travelling 15,000 miles per year and for fleets travelling 25,000 miles per year.

  7. Reliability Engineering

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

    LA-UR 15-27450 This document is approved for public release; further dissemination unlimited Reliability Engineering Reliability Engineering Current practice in reliability is ...

  8. Engineering Institute

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

    Education Opportunities » Engineering Institute Engineering Institute Engineering dynamics that include flight, vibration isolation for precision manufacturing, earthquake engineering, blast loading, signal processing, and experimental model analysis. Contact Leader, LANL Charles Farrar Email Leader, UCSD Michael Todd Email LANL Program Administrator Jutta Kayser (505) 663-5649 Email Administrative Assistant Stacy Baker (505) 663-5233 Email Collaboration for conducting mission-driven,

  9. Shockwave Engine: Wave Disk Engine

    SciTech Connect (OSTI)

    2010-01-14

    Broad Funding Opportunity Announcement Project: MSU is developing a new engine for use in hybrid automobiles that could significantly reduce fuel waste and improve engine efficiency. In a traditional internal combustion engine, air and fuel are ignited, creating high-temperature and high-pressure gases which expand rapidly. This expansion of gases forces the engines pistons to pump and powers the car. MSUs engine has no pistons. It uses the combustion of air and fuel to build up pressure within the engine, generating a shockwave that blasts hot gas exhaust into the blades of the engines rotors causing them to turn, which generates electricity. MSUs redesigned engine would be the size of a cooking pot and contain fewer moving partsreducing the weight of the engine by 30%. It would also enable a vehicle that could use 60% of its fuel for propulsion.

  10. Stirling engines

    SciTech Connect (OSTI)

    Reader, G.T.; Hooper

    1983-01-01

    The Stirling engine was invented by a Scottish clergyman in 1816, but fell into disuse with the coming of the diesel engine. Advances in materials science and the energy crisis have made a hot air engine economically attractive. Explanations are full and understandable. Includes coverage of the underlying thermodynamics and an interesting historical section. Topics include: Introduction to Stirling engine technology, Theoretical concepts--practical realities, Analysis, simulation and design, Practical aspects, Some alternative energy sources, Present research and development, Stirling engine literature.

  11. NREL: Transportation Research - Future Automotive Systems Technology...

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

    (drag, acceleration, ascent, and rolling resistance) Powertrain components (engine, motor, battery, and auxiliary loads) Regenerative braking Energy management strategies...

  12. Value Engineering

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

    2002-12-30

    To establish Department of Energy (DOE) value engineering policy that establishs and maintains cost-effective value procedures and processes.

  13. Engineered Materials

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

    7 Engineered Materials Materials design, fabrication, assembly, and characterization for national security needs. Contact Us Group Leader Ross Muenchausen Email Deputy Group Leader Dominic Peterson Email Group Office (505)-667-6887 We perform polymer science and engineering, including ultra-precision target design, fabrication, assembly, characterization, and field support. We perform polymer science and engineering, including ultra-precision target design, fabrication, assembly,

  14. General Engineers

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

    General Engineers The U.S. Energy Information Administration (EIA) within the Department of Energy has forged a world-class information program that stresses quality, teamwork, and employee growth. In support of our program, we offer a variety of profes- sional positions, including the General Engineer, whose work is associated with analytical studies and evaluation projects pertaining to the operations of the energy industry. Responsibilities: General Engineers perform or participate in one or

  15. Engineering Institute

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

    Institute Engineering Institute Multidisciplinary engineering research that integrates advanced modeling and simulations, novel sensing systems and new developments in information technology. May 14, 2013 Los Alamos Research Park Los Alamos Research Park, the home of Engineering Institute Contact Institute Director Charles Farrar (505) 665-0860 Email UCSD EI Director Michael Todd (858) 534-5951 Executive Administrator Ellie Vigil (505) 667-2818 Email Administrative Assistant Rebecca Duran (505)

  16. Electrical Engineer

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Rocky Mountain Region Power System Operation Operations Engineering, (J4200) 5555...

  17. Rotary engine

    SciTech Connect (OSTI)

    Leas, A. M.; Leas, L. E.

    1985-02-12

    Disclosed are an engine system suitable for use with methyl alcohol and hydrogen and a rotary engine particularly suited for use in the engine system. The rotary engine comprises a stator housing having a plurality of radially directed chamber dividers, a principal rotor, a plurality of subordinate rotors each having an involute gear in its periphery mounted on the principal rotor, and means for rotating the subordinate rotors so that their involute gears accept the radially directed dividers as the subordinate rotors move past them.

  18. Optimization to reduce fuel consumption in charge depleting mode

    DOE Patents [OSTI]

    Roos, Bryan Nathaniel; Martini, Ryan D.

    2014-08-26

    A powertrain includes an internal combustion engine, a motor utilizing electrical energy from an energy storage device, and a plug-in connection. A Method for controlling the powertrain includes monitoring a fuel cut mode, ceasing a fuel flow to the engine based upon the fuel cut mode, and through a period of operation including acceleration of the powertrain, providing an entirety of propelling torque to the powertrain with the electrical energy from the energy storage device based upon the fuel cut mode.

  19. Thermoacoustic engines

    SciTech Connect (OSTI)

    Swift, G.W.

    1988-10-01

    Thermoacoustic engines, or acoustic heat engines, are energy-conversion devices that achieve simplicity and concomitant reliability by use of acoustic technology. Their efficiency can be a substantial fraction of Carnot's efficiency. In thermoacoustic prime movers, heat flow from a high-temperature source to a low-temperature sink generates acoustic power (which may be converted to electric power using a transducer). In thermoacoustic heat pumps and refrigerators, acoustic power is used to pump heat from a low-temperature source to a high-temperature sink. This review teaches the fundamentals of thermoacoustic engines, by analysis, intuition, and example.

  20. Harmonic engine

    DOE Patents [OSTI]

    Bennett, Charles L. (Livermore, CA)

    2009-10-20

    A high efficiency harmonic engine based on a resonantly reciprocating piston expander that extracts work from heat and pressurizes working fluid in a reciprocating piston compressor. The engine preferably includes harmonic oscillator valves capable of oscillating at a resonant frequency for controlling the flow of working fluid into and out of the expander, and also preferably includes a shunt line connecting an expansion chamber of the expander to a buffer chamber of the expander for minimizing pressure variations in the fluidic circuit of the engine. The engine is especially designed to operate with very high temperature input to the expander and very low temperature input to the compressor, to produce very high thermal conversion efficiency.

  1. Civil Engineer

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Desert Southwest Region Engineering and Construction (G5600) 615 S. 43rd Avenue...

  2. Civil Engineer

    Broader source: Energy.gov [DOE]

    This announcement is open to Recent Graduates who have graduated within the last two years with a bachelor's degree in Civil Engineering and meet the requirements listed under the Qualifications...

  3. General Engineer

    Broader source: Energy.gov [DOE]

    The Department of Energy Office of Fossil Energy, Office of Petroleum Reserves (OPR), Planning and Engineering Office (DOE-FE) provides long-range planning for the Petroleum Reserves (PR) Program;...

  4. Combustion Engine

    Broader source: Energy.gov [DOE]

    Pictured here is an animation showing the basic mechanics of how an internal combustion engine works. With support from the Energy Department, General Motors researchers developed a new technology ...

  5. Reliability Engineering

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

    LA-UR 15-27450 This document is approved for public release; further dissemination unlimited Reliability Engineering Reliability Engineering Current practice in reliability is often fragmented, does not cover the full system lifecycle * Reliability needs to be addressed in design, development, and operational life * Reliability analysis should integrate information from components and systems Integrate proven reliability methods with world-class statistical science * Use methods and tools

  6. microbial engineering

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

    microbial engineering - 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 Fuel Cycle Defense Waste Management Programs Advanced

  7. Chemical Engineering

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

    Engineering - 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 Fuel Cycle Defense Waste Management Programs Advanced Nuclear

  8. Engine Combustion

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

    Engine Combustion - 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 Fuel Cycle Defense Waste Management Programs Advanced

  9. Rotary engine

    SciTech Connect (OSTI)

    Meyman, U.

    1987-02-03

    A rotary engine is described comprising: two covers spaced from one another; rotors located between the covers and rotating and planetating in different phases; the rotors interengaging to form working chambers therebetween; means to supply fluid to the working chambers and means to exhaust fluid from the working chambers during the operating cycle of the engine; gearing for synchronizing rotation and planetation of the rotors and each including first and second gears arranged so that one of the gears is connected with the rotors while the other of the gears is connected with an immovable part of the engine and the gears engage with one another; carriers interconnecting the rotors and planetating in the same phase with the planetation of the rotors for synchronizing the rotation and planetation of the rotors; shafts arranged to support the carriers during their planetations; and elements for connecting the covers with one another.

  10. Direct-hydrogen-fueled proton-exchange-membrane fuel cell system for transportation applications: Conceptual vehicle design report pure fuel cell powertrain vehicle

    SciTech Connect (OSTI)

    Oei, D.; Kinnelly, A.; Sims, R.; Sulek, M.; Wernette, D.

    1997-02-01

    In partial fulfillment of the Department of Energy (DOE) Contract No. DE-AC02-94CE50389, {open_quotes}Direct-Hydrogen-Fueled Proton-Exchange-Membrane (PEM) Fuel Cell for Transportation Applications{close_quotes}, this preliminary report addresses the conceptual design and packaging of a fuel cell-only powered vehicle. Three classes of vehicles are considered in this design and packaging exercise, the Aspire representing the small vehicle class, the Taurus or Aluminum Intensive Vehicle (AIV) Sable representing the mid-size vehicle and the E-150 Econoline representing the van-size class. A fuel cell system spreadsheet model and Ford`s Corporate Vehicle Simulation Program (CVSP) were utilized to determine the size and the weight of the fuel cell required to power a particular size vehicle. The fuel cell power system must meet the required performance criteria for each vehicle. In this vehicle design and packaging exercise, the following assumptions were made: fuel cell power system density of 0.33 kW/kg and 0.33 kg/liter, platinum catalyst loading less than or equal to 0.25 mg/cm{sup 2} total and hydrogen tanks containing gaseous hydrogen under 340 atm (5000 psia) pressure. The fuel cell power system includes gas conditioning, thermal management, humidity control, and blowers or compressors, where appropriate. This conceptual design of a fuel cell-only powered vehicle will help in the determination of the propulsion system requirements for a vehicle powered by a PEMFC engine in lieu of the internal combustion (IC) engine. Only basic performance level requirements are considered for the three classes of vehicles in this report. Each vehicle will contain one or more hydrogen storage tanks and hydrogen fuel for 560 km (350 mi) driving range. Under these circumstances, the packaging of a fuel cell-only powered vehicle is increasingly difficult as the vehicle size diminishes.

  11. Harmonic engine

    DOE Patents [OSTI]

    Bennett, Charles L.; Sewall, Noel; Boroa, Carl

    2014-08-19

    An engine based on a reciprocating piston engine that extracts work from pressurized working fluid. The engine includes a harmonic oscillator inlet valve capable of oscillating at a resonant frequency for controlling the flow of working fluid into of the engine. In particular, the inlet valve includes an inlet valve head and a spring arranged together as a harmonic oscillator so that the inlet valve head is moveable from an unbiased equilibrium position to a biased closed position occluding an inlet. Upon releasing the inlet valve the inlet valve head undergoes a single oscillation past the equilibrium positio to a maximum open position and returns to a biased return position close to the closed position to choke the flow and produce a pressure drop across the inlet valve causing the inlet valve to close. Protrusions carried either by the inlet valve head or piston head are used to bump open the inlet valve from the closed position and initiate the single oscillation of the inlet valve head, and protrusions carried either by the outlet valve head or piston head are used to close the outlet valve ahead of the bump opening of the inlet valve.

  12. Value Engineering

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

    2004-01-07

    To establish Department of Energy (DOE) value engineering policy that meets the requirements of Public Law 104-106, Section 4306 as codified by 41 United States Code 432. Canceled by DOE N 251.94. Does not cancel other directives.

  13. Workplace Charging Challenge Partner: FEV North America Inc.

    Broader source: Energy.gov [DOE]

    The FEV Group is a powertrain and vehicle engineering company that supplies the global transportation industry. FEV offers a complete range of engineering services, providing support across the...

  14. Rotary engine

    SciTech Connect (OSTI)

    Fawcett, S.L.

    1987-03-03

    In an internal combustion engine, external heat engine, heat pump, gaseous expander, pump or gas compressor, the combustion is described including means forming a cylindrical working chamber having intake and exhaust port means for gases, and two pistons having an arcuate length within the range of 90/sup 0/ to 120/sup 0/ of the cylindrical portion of the working chamber to move toward and away from each other for compression and expansion of gases by rotation on separate concentrically-arranged shafts. A seal means is carried by the walls of the cylindrical working chamber at each of spaced apart locations to continuously form a gas sealing relation with both of the pistons while the pistons rotate toward and away from each other in the cylindrical working chamber.

  15. Rotary engine

    SciTech Connect (OSTI)

    Larson, T. G.

    1985-10-22

    The rotary engine has a circumferential main chamber and at least one smaller combustion chamber spaced from the main chamber. The rotor includes a plurality of radially-projecting sealing members in spaced relationship thereabout for maintaining a fluid-sealed condition along a single fixed transverse strip area on the interior surface of the main chamber. A single radially-oriented axially-parallel piston vane is also carried by the rotor and moves through the fixed strip area of the main chamber at each revolution of the rotor. Plural passages for intake, compression, expansion, and exhaust are ported into the main chamber at locations proximate to the fixed strip area. Valve means in the passages selectively open and close the same for a cycle of engine operation involving intake, compression, burning, and exhaust.

  16. Advanced Reciprocating Engine Systems

    Broader source: Energy.gov [DOE]

    The Advanced Reciprocating Engine Systems (ARES) program is designed to promote separate but parallel engine development between the major stationary, gaseous fueled engine manufacturers in the...

  17. Systems Engineering

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

    3 - 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 Fuel Cycle Defense Waste Management Programs Advanced Nuclear Energy Nuclear

  18. Rotary engine

    SciTech Connect (OSTI)

    Fawcett, S.L.

    1988-02-09

    In an internal combustion engine, external heat engine, heat pump, gaseous expander, pump or gas compressor, the combination is described including means forming a cylindrical working chamber communicating with intake and exhaust port means for gases, two pistons having an arcuate length within the range of 90/sup 0/ to 120/sup 0/ of the cylindrical surface of the working chamber. The pistons are movable toward and away from each other for compression and expansion of gases in the working chamber while separately rotating concentrically-arranged shafts, a drive shaft, three sets of gearing for connecting the pistons to the drive shaft, a first set of the gearing drivingly coupled to a first of the separate concentric shafts, a second set of the gearing drivingly coupled to a second of the concentric shaft, and a third set of the gearing comprising non-circular gears. The drive shaft is secured to one gear of each of the first, second and third gear sets of gearing for rotating the drive shaft with a substantially constant velocity and torque output throughout the several phases of the working cycle of the engine, compressor or pump.

  19. General Engineer (Marine & Hydrokinetic Engineer) | Department...

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

    Engineer) General Engineer (Marine & Hydrokinetic Engineer) Submitted by admin on Sat, 2016-01-16 00:16 Job Summary Organization Name Department Of Energy Agency SubElement...

  20. HCCI in a Variable Compression Ratio Engine: Effects of Engine...

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

    in a Variable Compression Ratio Engine: Effects of Engine Variables HCCI in a Variable Compression Ratio Engine: Effects of Engine Variables 2004 Diesel Engine Emissions Reduction ...

  1. Stirling engine

    SciTech Connect (OSTI)

    Bolger, S.R.

    1992-03-17

    This patent describes an engine. It comprises at least two variable volume compartments joined by a porous medium regenerator; heat exchangers in heat exchange relationships with the variable volume compartments; a fixed quantity of gas in the compartments; a piston in each of the compartments; means to control the pistons to vary the volumes of the gas transferring between the compartments in the form of overlapping quadrilateral waveforms to compress the gas in both compartments through the same cycle pressure ratio during a cycle compression step, to shift the gas between compartments and to expand the gas in both compartments through the same cycle pressure ratio during a cycle expansion step.

  2. Engineers Constructors

    Office of Legacy Management (LM)

    Engineers - Constructors ~ /:~ ( ' r,.... I!~\ l.,_",z;(J;' Bechtel National, Inc. Oak Ridge Office Jackson Plaza Tower 800 Oak Ridge Turnpike Oak Ridge. Tennessee Mail Address: P. O. B01l 350. Oak Ridge. TN 37830 bce-. R. Barber C. t1iller E. Wal ker C. Knoke G. Phillips G. Scott L. Blevins K. Harer DOE File No. 030-04G Professional Land Surveying 1404 Second Street Santa Fe, New Mexico 87501 Attn: Mr. Robert Benavides Reference: Purchase Contract l4501-01j04-PC-19 Bayo Canyon Survey Dear

  3. Rotary engine

    SciTech Connect (OSTI)

    Brownfield, L.A.

    1980-12-02

    The major components of this rotary engine are two equal sized rotary units, the housing containing them along with associated ignition and cooling systems. Each of the rotary units consists of a shaft, gear, two outer compressor wheels, and one center power wheel which has twice the axial thickness as the compressor wheel. All the wheels are cylindrical in shape with a lobe section comprising a 180/sup 0/ arc on the periphery of each wheel which forms an expanding and contracting volumetric chamber by means of leading and trailing lips. The lobes of the first rotary unit are situated 180/sup 0/ opposite the lobes of the second adjacent mating rotary unit, thus lobes can intermesh with its corresponding wheel.

  4. Metabolic Engineering X Conference

    SciTech Connect (OSTI)

    Flach, Evan

    2015-05-07

    The International Metabolic Engineering Society (IMES) and the Society for Biological Engineering (SBE), both technological communities of the American Institute of Chemical Engineers (AIChE), hosted the Metabolic Engineering X Conference (ME-X) on June 15-19, 2014 at the Westin Bayshore in Vancouver, British Columbia. It attracted 395 metabolic engineers from academia, industry and government from around the globe.

  5. Rotary engine

    SciTech Connect (OSTI)

    Smith, T.A.

    1992-01-28

    This patent describes an improved rotary engine. It comprises an annular master cylinder composed of a cylindrical housing, a continuous hollow outer concentric shaft, an outward end housing and an inward end housing; means to form a dynamically balanced disc piston assembly extending from the the outward end housing to the the inward end housing thereby dividing the the annular master cylinder into at least three separate gas tight cylinders formed by rotating discs, each cylinder having at least two pistons independently rotatable therein; means to isolate the unexpanded gases from any exit path into the housing of the piston controlling means; and wherein one of the pistons in each cylinder is connected directly to the the continuous outer concentric shaft to form a first piston assembly, the other of the pistons in each cylinder is connected to the discs which are connected to the end of an inner concentric shaft to form a second piston assembly, means for controlling the piston action by a common eccentric shaft such that as the pistons rotate they expand and reduce the distance between them thereby changing the volume between the pistons within each of the cylinders.

  6. Increased Engine Efficiency via Advancements in Engine Combustion...

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

    Engine Efficiency via Advancements in Engine Combustion Systems Increased Engine Efficiency via Advancements in Engine Combustion Systems Presentation given at the 16th Directions...

  7. Sandia Energy - HCCI/SCCI Engine Fundamentals

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

    HCCISCCI Engine Fundamentals Home Transportation Energy Predictive Simulation of Engines Engine Combustion Automotive HCCISCCI Engine Fundamentals HCCISCCI Engine...

  8. Sandia Energy - HCCI/SCCI Engine Fundamentals

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

    HCCISCCI Engine Fundamentals Home Transportation Energy Predictive Simulation of Engines Engine Combustion Heavy Duty HCCISCCI Engine Fundamentals HCCISCCI Engine...

  9. The Meritor Dual Mode Hybrid Powertrain CRADA

    Broader source: Energy.gov [DOE]

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

  10. Method for controlling a motor vehicle powertrain

    DOE Patents [OSTI]

    Burba, J.C.; Landman, R.G.; Patil, P.B.; Reitz, G.A.

    1990-05-22

    A multiple forward speed automatic transmission produces its lowest forward speed ratio when a hydraulic clutch and hydraulic brake are disengaged and a one-way clutch connects a ring gear to the transmission casing. Second forward speed ratio results when the hydraulic clutch is engaged to connect the ring gear to the planetary carrier of a second gear set. Reverse drive and regenerative operation result when an hydraulic brake fixes the planetary and the direction of power flow is reversed. Various sensors produce signals representing the position of the gear selector lever operated manually by the vehicle operator, the speed of the power source, the state of the ignition key, and the rate of release of an accelerator pedal. A control algorithm produces input data representing a commanded upshift, a commanded downshift and a torque command and various constant torque signals. A microprocessor processes the input and produces a response to them in accordance with the execution of a control algorithm. Output or response signals cause selective engagement and disengagement of the clutch and brake to produce the forward drive, reverse and regenerative operation of the transmission. 7 figs.

  11. Method for controlling a motor vehicle powertrain

    DOE Patents [OSTI]

    Burba, Joseph C. (Ypsilanti, MI); Landman, Ronald G. (Ypsilanti, MI); Patil, Prabhakar B. (Detroit, MI); Reitz, Graydon A. (Farmington Hills, MI)

    1990-01-01

    A multiple forward speed automatic transmission produces its lowest forward speed ratio when a hydraulic clutch and hydraulic brake are disengaged and a one-way clutch connects a ring gear to the transmission casing. Second forward speed ratio results when the hydraulic clutch is engaged to connect the ring gear to the planetary carrier of a second gear set. Reverse drive and regenerative operation result when an hydraulic brake fixes the planetary and the direction of power flow is reversed. Various sensors produce signals representing the position of the gear selector lever operated manually by the vehicle operator, the speed of the power source, the state of the ignition key, and the rate of release of an accelerator pedal. A control algorithm produces input data representing a commanded upshift, a commanded downshift and a torque command and various constant torque signals. A microprocessor processes the input and produces a response to them in accordance with the execution of a control algorithm. Output or response signals cause selective engagement and disengagement of the clutch and brake to produce the forward drive, reverse and regenerative operation of the transmission.

  12. Tradeoff Between Powertrain Complexity and Fuel Efficiency

    Broader source: Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  13. Vehicle Technologies Office: Propulsion Materials for Cars and Trucks

    Broader source: Energy.gov [DOE]

    Manufacturers use propulsion (or powertrain) materials in the components that move vehicles of every size and shape. Conventional vehicles use these materials in components such as the engine,...

  14. Turbocharged Spark Ignited Direct Injection - A Fuel Economy...

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

    E85 Optimized Engine Two-Stage Variable Compression Ratio (VCR) System to Increase Efficiency in Gasoline Powertrains Cold-Start Performance and Emissions Behavior of Alcohol Fuels ...

  15. LD Vehicles AFDC 11 25 13 TC.xlsx

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

    Model Year 2014: Alternative Fuel and Advanced Technology Vehicles 1 (Updated 11252013) MY FuelPowertrain Type Make Model Vehicle Type Engine SizeCylinders Transmission...

  16. DOE and USCAR Announce $70 Million Project to Accelerate Development...

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

    framing, body, powertrain and engine components. Beyond metals, new materials for use in car manufacturing such as carbon fiber and polymer matrix composites could produce weight...

  17. Controlled Power Technologies Ltd | Open Energy Information

    Open Energy Info (EERE)

    Technologies Ltd Place: Essex, United Kingdom Zip: SS15 6TP Product: Essex-based automotive component supply company involved in powertrain engineering, power electronics and...

  18. Career Map: Industrial Engineer

    Broader source: Energy.gov [DOE]

    The Wind Program's Career Map provides job description information for Industrial Engineer positions.

  19. Jefferson Lab Engineering

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

    Engineering Privacy and Security Notice Skip over navigation search JLab Engineering Please upgrade your browser. This site's design is only visible in a graphical browser that supports web standards, but its content is accessible to any browser. Concerns? Engineering Division Engineering Pressure Systems Seminars/Training print version Mechanical Systems Mechanical Engineering - Document Control Survey Alignment Machine Shop Installation/Vacuum Cryogenics Cryogenics - Cryogenics Department

  20. The Phillips Stirling engine

    SciTech Connect (OSTI)

    Hargreaves, C.M.

    1991-01-01

    This book is about the Stirling engine and its development from the heavy cast-iron machine of the 19th century to that of today. It is a history of a research effort spanning nearly 50 years, together with an outline of principles, and some technical details and descriptions of the more important engines. Contents include: the hot-air engine; the 20th-century revival; the Stirling cycle; rhombic-drive engines; heating and cooling; pistons and seals; electric generators and heat pumps; exotic heat sources; the engine and the environment; swashplate engines; and the past and the future.

  1. Advanced Natural Gas Reciprocating Engine(s)

    SciTech Connect (OSTI)

    Pike, Edward

    2014-03-31

    The objective of the Cummins ARES program, in partnership with the US Department of Energy (DOE), is to develop advanced natural gas engine technologies that increase engine system efficiency at lower emissions levels while attaining lower cost of ownership. The goals of the project are to demonstrate engine system achieving 50% Brake Thermal Efficiency (BTE) in three phases, 44%, 47% and 50% (starting baseline efficiency at 36% BTE) and 0.1 g/bhp-hr NOx system out emissions (starting baseline NOx emissions at 2 – 4 g/bhp-hr NOx). Primary path towards above goals include high Brake Mean Effective Pressure (BMEP), improved closed cycle efficiency, increased air handling efficiency and optimized engine subsystems. Cummins has successfully demonstrated each of the phases of this program. All targets have been achieved through application of a combined set of advanced base engine technologies and Waste Heat Recovery from Charge Air and Exhaust streams, optimized and validated on the demonstration engine and other large engines. The following architectures were selected for each Phase: Phase 1: Lean Burn Spark Ignited (SI) Key Technologies: High Efficiency Turbocharging, Higher Efficiency Combustion System. In production on the 60/91L engines. Over 500MW of ARES Phase 1 technology has been sold. Phase 2: Lean Burn Technology with Exhaust Waste Heat Recovery (WHR) System Key Technologies: Advanced Ignition System, Combustion Improvement, Integrated Waste Heat Recovery System. Base engine technologies intended for production within 2 to 3 years Phase 3: Lean Burn Technology with Exhaust and Charge Air Waste Heat Recovery System Key Technologies: Lower Friction, New Cylinder Head Designs, Improved Integrated Waste Heat Recovery System. Intended for production within 5 to 6 years Cummins is committed to the launch of next generation of large advanced NG engines based on ARES technology to be commercialized worldwide.

  2. ARM - Engineering Change Request & Engineering Change Order Guidelines

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

    resources, as soon as possible, when operational, science, or engineering needs require a quick engineering response where no design or redesign is required. Engineering Consultant...

  3. Polymer Engineering Center

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

    Polymer Engineering Center University of Wisconsin-Madison Experimental and Numerical Studies of the Temperature Field in Selective Laser Sintering to Improve Shrinkage and Warpage Prediction Prof. Dr.-Ing. Natalie Rudolph Polymer Engineering Center Department of Mechanical Engineering University of Wisconsin-Madison 1513 University Ave Madison, WI 53706 Advanced Qualification of Additive Manufacturing Materials Workshop, July 20-21, 2015 in Santa Fe, NM Polymer Engineering Center University of

  4. Symbiotic Engineering | Open Energy Information

    Open Energy Info (EERE)

    Symbiotic Engineering Jump to: navigation, search Name: Symbiotic Engineering Place: Boulder, CO Website: www.symbioticengineering.com References: Symbiotic Engineering1...

  5. ETA Engineering | Open Energy Information

    Open Energy Info (EERE)

    ETA Engineering Jump to: navigation, search Logo: ETA Engineering Name: ETA Engineering Address: 4049 E. Presidio St., Suite 117 Place: Mesa, Arizona Zip: 85215 Product: renewable...

  6. Black Pine Engineering

    Broader source: Energy.gov [DOE]

    Black Pine Engineering is commercializing a disruptive technology in the turbomachinery industry. Using a patented woven composite construction, Black Pine Engineering can make turbomachines (turbines, compressors) that are cheaper and lighter than competing technologies. Using this technology, Black Pine Engineering will sell turbo-compressors which solve the problem of wasted steam in geothermal power plants.

  7. Solar powered Stirling engine

    SciTech Connect (OSTI)

    Meijer, R.J.

    1987-11-24

    In a solar dish module which comprises a dish which receives incident solar rays and reflects them to a focus at which is located the combination of a receiver and a heat engine organized and arranged so that the heat energy of the reflected solar rays collected at the receiver powers the engine, and wherein the receiver and heat engine are supported from the dish by a framework, the improvement is described which comprises journal means for journaling at least the engine on the framework to maintain certain predetermined spatial orientation for the engine in relation to the direction of gravity irrespective of spatial orientation of the dish.

  8. ARM - Engineering Work Request & Engineering Work Order Guidelines

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

    Work Request & Engineering Work Order Guidelines Page Contents: Introduction Discussion of the ARM Climate Research Facility Engineering Process: The Engineering Change Request (ECR) and the Engineering Change Order (ECO) Operations and Engineering Task Consulting: The Engineering Work Request (EWR) and the Engineering Work Order (EWO) Relationship of the ECR/ECO and EWR/EWO to the Engineering Task Tracking Tool Relationship of the ECR/ECO and EWR/EWO to the Existing Configuration Control

  9. Engine intake system

    SciTech Connect (OSTI)

    Kanesaka, H.

    1989-02-07

    An intake system is described for an internal combustion engine, the system comprising: an intake passage having an intake port and an inertial supercharging intake pipe leading to the intake port; an intake valve mounted in the intake port and operatively connected to the engine for alternately opening and closing the intake port; a rotary valve operatively connected to the engine and disposed in the intake passage intermediate the inertial supercharging intake pipe and the intake port. The rotary valve is rotatable for opening and closing the intake passage, and timing adjusting means operatively connected to the engine and to the rotary valve for retarding the opening of the rotary valve relative to the opening of the intake valve at low engine speeds, and for advancing the opening of the rotary valve at high engine speeds, whereby the retarding and advancing of the opening of the rotary valve enables inertial supercharging in the intake pipe at both low and high engine speeds.

  10. Mechanical Engineering Department technical review

    SciTech Connect (OSTI)

    Carr, R.B.; Abrahamson, L.; Denney, R.M.; Dubois, B.E

    1982-01-01

    Technical achievements and publication abstracts related to research in the following Divisions of Lawrence Livermore Laboratory are reported in this biannual review: Nuclear Fuel Engineering; Nuclear Explosives Engineering; Weapons Engineering; Energy Systems Engineering; Engineering Sciences; Magnetic Fusion Engineering; and Material Fabrication. (LCL)

  11. Stirling cycle rotary engine

    SciTech Connect (OSTI)

    Chandler, J.A.

    1988-06-28

    A Stirling cycle rotary engine for producing mechanical energy from heat generated by a heat source external to the engine, the engine including: an engine housing having an interior toroidal cavity with a central housing axis for receiving a working gas, the engine housing further having a cool as inlet port, a compressed gas outlet port, a heated compressed gas inlet port, and a hot exhaust gas outlet port at least three rotors each fixedly mounted to a respective rotor shaft and independently rotatable within the toroidal cavity about the central axis; each of the rotors including a pair of rotor blocks spaced radially on diametrically opposing sides of the respective rotor shaft, each rotor block having a radially fixed curva-linear outer surface for sealed rotational engagement with the engine housing.

  12. Staged combustion with piston engine and turbine engine supercharger

    DOE Patents [OSTI]

    Fischer, Larry E. (Los Gatos, CA); Anderson, Brian L. (Lodi, CA); O'Brien, Kevin C. (San Ramon, CA)

    2006-05-09

    A combustion engine method and system provides increased fuel efficiency and reduces polluting exhaust emissions by burning fuel in a two-stage combustion system. Fuel is combusted in a piston engine in a first stage producing piston engine exhaust gases. Fuel contained in the piston engine exhaust gases is combusted in a second stage turbine engine. Turbine engine exhaust gases are used to supercharge the piston engine.

  13. Staged combustion with piston engine and turbine engine supercharger

    DOE Patents [OSTI]

    Fischer, Larry E. (Los Gatos, CA); Anderson, Brian L. (Lodi, CA); O'Brien, Kevin C. (San Ramon, CA)

    2011-11-01

    A combustion engine method and system provides increased fuel efficiency and reduces polluting exhaust emissions by burning fuel in a two-stage combustion system. Fuel is combusted in a piston engine in a first stage producing piston engine exhaust gases. Fuel contained in the piston engine exhaust gases is combusted in a second stage turbine engine. Turbine engine exhaust gases are used to supercharge the piston engine.

  14. Integrated and Engineered Systems

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

    Integrated and Engineered Systems Integrated and Engineered Systems National security depends on science and technology. The United States relies on Los Alamos National Laboratory for the best of both. No place on Earth pursues a broader array of world-class scientific endeavors. Contact thumbnail of Business Development Executive Miranda Intrator Business Development Executive Richard P. Feynmnan Center for Innovation (505) 665-8315 Email Engineers at Los Alamos create, design, and build the

  15. Science & Engineering Capabilities

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

    Capabilities /science-innovation/_assets/images/icon-science.jpg Science & Engineering Capabilities These capabilities are our science and engineering at work for the national security interest in areas from global climate to cyber security, from nonproliferation to new materials, from clean energy solutions to supercomputing. Accelerators, Electrodynamics» Energy» Materials Science» Bioscience: Bioenergy, Biosecurity, and Health» Engineering» National Security, Weapons Science»

  16. Supervisory Electrical Engineer

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Rocky Mountain Region Maintenance, (J5640) Engineering and Construciton 5555 E....

  17. Science, Technology & Engineering

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

    search, Alan Bishop has been selected to be the Laboratory's next Principal Associate Director for - 2 - Science, Technology, and Engineering (PADSTE). Bishop has been acting...

  18. 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.

  19. Science, Technology, and Engineering

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

    PADSTE Science, Technology, and Engineering Delivering mission success and innovative solutions to national security problems through the agile, rapid application of our...

  20. ARM - Engineering Processes

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

    Processes Workflow Graphic Engineering Workflow Document Tools for Workflow ECR ECO BCR Ingests Value-Added Products Reprocessing Instruments Data System Elements Field...

  1. Stirling engine heating system

    SciTech Connect (OSTI)

    Johansson, L.N.; Houtman, W.H.; Percival, W.H.

    1988-06-28

    A hot gas engine is described wherein a working gas flows back and forth in a closed path between a relatively cooler compression cylinder side of the engine and a relatively hotter expansion cylinder side of the engine and the path contains means including a heat source and a heat sink acting upon the gas in cooperation with the compression and expansion cylinders to cause the gas to execute a thermodynamic cycle wherein useful mechanical output power is developed by the engine, the improvement in the heat source which comprises a plurality of individual tubes each forming a portion of the closed path for the working gas.

  2. Polymer Engineering Center

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

    Center 1513 University Ave 1035 Mechanical Engineering building natalie.rudolph@wisc.edu Dielectric Analysis Dipl.-Phys. Alexander Chaloupka Fraunhofer ICT Branch...

  3. Advanced Natural Gas Reciprocating Engine(s)

    SciTech Connect (OSTI)

    Kwok, Doris; Boucher, Cheryl

    2009-09-30

    Energy independence and fuel savings are hallmarks of the nations energy strategy. The advancement of natural gas reciprocating engine power generation technology is critical to the nations future. A new engine platform that meets the efficiency, emissions, fuel flexibility, cost and reliability/maintainability targets will enable American manufacturers to have highly competitive products that provide substantial environmental and economic benefits in the US and in international markets. Along with Cummins and Waukesha, Caterpillar participated in a multiyear cooperative agreement with the Department of Energy to create a 50% efficiency natural gas powered reciprocating engine system with a 95% reduction in NOx emissions by the year 2013. This platform developed under this agreement will be a significant contributor to the US energy strategy and will enable gas engine technology to remain a highly competitive choice, meeting customer cost of electricity targets, and regulatory environmental standard. Engine development under the Advanced Reciprocating Engine System (ARES) program was divided into phases, with the ultimate goal being approached in a series of incremental steps. This incremental approach would promote the commercialization of ARES technologies as soon as they emerged from development and would provide a technical and commercial foundation of later-developing technologies. Demonstrations of the Phase I and Phase II technology were completed in 2004 and 2008, respectively. Program tasks in Phase III included component and system development and testing from 2009-2012. Two advanced ignition technology evaluations were investigated under the ARES program: laser ignition and distributed ignition (DIGN). In collaboration with Colorado State University (CSU), a laser ignition system was developed to provide ignition at lean burn and high boost conditions. Much work has been performed in Caterpillars DIGN program under the ARES program. This work has consisted of both modeling and single cylinder engine experiments to quantify DIGN performance. The air handling systems of natural gas engines dissipate a percentage of available energy as a result of both flow losses and turbomachinery inefficiencies. An analytical study was initiated to increase compressor efficiency by employing a 2-stage inter-cooled compressor. Caterpillar also studied a turbo-compound system that employs a power turbine to recover energy from the exhaust gases for improved engine efficiency. Several other component and system investigations were undertaken during the final phase of the program to reach the ultimate ARES goals. An intake valve actuation system was developed and tested to improve engine efficiency, durability and load acceptance. Analytical modeling and materials testing were performed to evaluate the performance of steel pistons and compacted graphite iron cylinder head. Effort was made to improve the detonation sensing system by studying and comparing the performance of different pressure sensors. To reduce unburned hydrocarbon emissions, different camshafts were designed and built to investigate the effect of exhaust valve opening timing and value overlap. 1-D & 3-D coupled simulation was used to study intake and exhaust manifold dynamics with the goal of reducing load in-balance between cylinders. Selective catalytic reduction with on-board reductant generation to reduce NOx emissions was also engine tested. An effective mean to successfully deploy ARES technologies into the energy markets is to deploy demonstration projects in the field. In 2010, NETL and Caterpillar agreed to include a new opportunity fuel deliverable and two field demonstrations in the ARES program. An Organic Rankine Cycle system was designed with production intent incorporating lessons learned from the Phase II demonstration. Unfortunately, business conditions caused Caterpillar to cancel this demonstration in 2011. Nonetheless, Caterpillar partnered with a local dealer to deploy an ARES class engine using syngas from a biomass gasifier as

  4. Engine and method for operating an engine

    DOE Patents [OSTI]

    Lauper, Jr., John Christian (East Peoria, IL); Willi, Martin Leo (Dunlap, IL); Thirunavukarasu, Balamurugesh (Peoria, IL); Gong, Weidong (Dunlap, IL)

    2008-12-23

    A method of operating an engine is provided. The method may include supplying a combustible combination of reactants to a combustion chamber of the engine, which may include supplying a first hydrocarbon fuel, hydrogen fuel, and a second hydrocarbon fuel to the combustion chamber. Supplying the second hydrocarbon fuel to the combustion chamber may include at least one of supplying at least a portion of the second hydrocarbon fuel from an outlet port that discharges into an intake system of the engine and supplying at least a portion of the second hydrocarbon fuel from an outlet port that discharges into the combustion chamber. Additionally, the method may include combusting the combustible combination of reactants in the combustion chamber.

  5. Two-Stage Variable Compression Ratio (VCR) System to Increase Efficiency in

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

    Gasoline Powertrains | Department of Energy Stage Variable Compression Ratio (VCR) System to Increase Efficiency in Gasoline Powertrains Two-Stage Variable Compression Ratio (VCR) System to Increase Efficiency in Gasoline Powertrains Presents two-stage variable compression ratio mechanism realized by varying the connecting rod length, description of the system layout, working principle and expected fuel savings benefits when used in current and future gasoline engine concepts PDF icon

  6. Perturbing engine performance measurements to determine optimal engine control settings

    DOE Patents [OSTI]

    Jiang, Li; Lee, Donghoon; Yilmaz, Hakan; Stefanopoulou, Anna

    2014-12-30

    Methods and systems for optimizing a performance of a vehicle engine are provided. The method includes determining an initial value for a first engine control parameter based on one or more detected operating conditions of the vehicle engine, determining a value of an engine performance variable, and artificially perturbing the determined value of the engine performance variable. The initial value for the first engine control parameter is then adjusted based on the perturbed engine performance variable causing the engine performance variable to approach a target engine performance variable. Operation of the vehicle engine is controlled based on the adjusted initial value for the first engine control parameter. These acts are repeated until the engine performance variable approaches the target engine performance variable.

  7. Career Map: Research Engineer | Department of Energy

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

    Research Engineer Career Map: Research Engineer Two research engineers wearing safety glasses view results of an experiment. Research Engineer Position Title Research Engineer Alternate Title(s) Government Engineer, Research and Development Engineer, Basic Research Engineer, Component Researcher, Materials Engineer Education & Training Level Bachelor's degree required, prefer graduate degree Education & Training Level Description Research engineers must have a bachelor's degree.

  8. Engineering Division Superconducting

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

    & Engineering Division Superconducting Magnet Technology for Fusion and Large Scale Applications Joseph V. Minervini Massachusetts Institute of Technology Plasma Science and Fusion Center Princeton Plasma Physics Laboratory Colloquium Princeton, NJ October 15, 2014 Technology & Engineering Division Contents * Fusion Magnets - Present and Future - Vision - State-of-the-art - New developments in superconductors * Advanced fusion magnet technology * Other large scale applications of

  9. Stirling engine piston ring

    DOE Patents [OSTI]

    Howarth, Roy B. (Clifton Park, NY)

    1983-01-01

    A piston ring design for a Stirling engine wherein the contact pressure between the piston and the cylinder is maintained at a uniform level, independent of engine conditions through a balancing of the pressure exerted upon the ring's surface and thereby allowing the contact pressure on the ring to be predetermined through the use of a preloaded expander ring.

  10. Free piston stirling engines

    SciTech Connect (OSTI)

    Walker, C.

    1985-01-01

    This book presents a basic introduction to free piston Stirling engine technology through a review of specialized background material. It also includes information based on actual construction and operation experience with these machines, as well as theoretical and analytical insights into free piston Stirling engine technology.

  11. Thermoacoustic engines and refrigerators

    SciTech Connect (OSTI)

    Swift, G.

    1996-12-31

    This report is a transcript of a practice lecture given in preparation for a review lecture on the operation of thermoacoustic engines and refrigerators. The author begins by a brief review of the thermodynamic principles underlying the operation of thermoacoustic engines and refrigerators. Remember from thermodynamics class that there are two kinds of heat engines, the heat engine or the prime mover which produces work from heat, and the refrigerator or heat pump that uses work to pump heat. The device operates between two thermal reservoirs at temperatures T{sub hot} and T{sub cold}. In the heat engine, heat flows into the device from the reservoir at T{sub hot}, produces work, and delivers waste heat into the reservoir at T{sub cold}. In the refrigerator, work flows into the device, lifting heat Q{sub cold} from reservoir at T{sub cold} and rejecting waste heat into the reservoir at T{sub hot}.

  12. Metabolic Engineering VII Conference

    SciTech Connect (OSTI)

    Kevin Korpics

    2012-12-04

    The aims of this Metabolic Engineering conference are to provide a forum for academic and industrial researchers in the field; to bring together the different scientific disciplines that contribute to the design, analysis and optimization of metabolic pathways; and to explore the role of Metabolic Engineering in the areas of health and sustainability. Presentations, both written and oral, panel discussions, and workshops will focus on both applications and techniques used for pathway engineering. Various applications including bioenergy, industrial chemicals and materials, drug targets, health, agriculture, and nutrition will be discussed. Workshops focused on technology development for mathematical and experimental techniques important for metabolic engineering applications will be held for more in depth discussion. This 2008 meeting will celebrate our conference tradition of high quality and relevance to both industrial and academic participants, with topics ranging from the frontiers of fundamental science to the practical aspects of metabolic engineering.

  13. Increased Engine Efficiency via Advancements in Engine Combustion Systems |

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

    Department of Energy Engine Efficiency via Advancements in Engine Combustion Systems Increased Engine Efficiency via Advancements in Engine Combustion Systems Presentation given at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. PDF icon deer10_sisken.pdf More Documents & Publications High-Efficiency Engine Technologies Session Introduction Demonstrating and Validating a Next Generation Model-Based Controller for

  14. The Science DMZ Eli Dart, Network Engineer ESnet Engineering...

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

    Science DMZ Eli Dart, Network Engineer ESnet Engineering Group Winter 2011 Joint Techs Clemson, SC February 1, 2011 Lawrence Berkeley National Laboratory U.S. Department of Energy...

  15. E85 Optimized Engine

    SciTech Connect (OSTI)

    Stanley Bower

    2011-12-31

    A 5.0L V8 twin-turbocharged direct injection engine was designed, built, and tested for the purpose of assessing the fuel economy and performance in the F-Series pickup of the Dual Fuel engine concept and of an E85 optimized FFV engine. Additionally, production 3.5L gasoline turbocharged direct injection (GTDI) ??EcoBoost? engines were converted to Dual Fuel capability and used to evaluate the cold start emissions and fuel system robustness of the Dual Fuel engine concept. Project objectives were: to develop a roadmap to demonstrate a minimized fuel economy penalty for an F-Series FFV truck with a highly boosted, high compression ratio spark ignition engine optimized to run with ethanol fuel blends up to E85; to reduce FTP 75 energy consumption by 15% - 20% compared to an equally powered vehicle with a current production gasoline engine; and to meet ULEV emissions, with a stretch target of ULEV II / Tier II Bin 4. All project objectives were met or exceeded.

  16. VALUE ENGINEERING.PDF

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

    6 I N S P E C T I O N R E P O R T U.S. DEPARTMENT OF ENERGY OFFICE OF INSPECTOR GENERAL OFFICE OF INSPECTIONS FOLLOW-ON INSPECTION OF THE DEPARTMENT OF ENERGY'S VALUE ENGINEERING PROGRAM DECEMBER 2001 U.S. DEPARTMENT OF ENERGY Washington, DC 20585 December 20, 2001 MEMORANDUM FOR THE SECRETARY FROM: Gregory H. Friedman /s/ Inspector General SUBJECT: INFORMATION: Report on "Follow-on Inspection of the Department of Energy's Value Engineering Program" BACKGROUND Value Engineering is a

  17. Demonstration of Air-Power-Assist Engine Technology for Clean Combustion and Direct Energy Recovery in Heavy Duty Application

    SciTech Connect (OSTI)

    Hyungsuk Kang; Chun Tai

    2010-05-01

    The first phase of the project consists of four months of applied research, starting from September 1, 2005 and was completed by December 31, 2005. During this time, the project team heavily relied on highly detailed numerical modeling techniques to evaluate the feasibility of the APA technology. Specifically, (i) A GT-Power{sup TM}engine simulation model was constructed to predict engine efficiency at various operating conditions. Efficiency was defined based on the second-law thermodynamic availability. (ii) The engine efficiency map generated by the engine simulation was then fed into a simplified vehicle model, which was constructed in the Matlab/Simulink environment, to predict fuel consumption of a refuse truck on a simple collection cycle. (iii) Design and analysis work supporting the concept of retrofitting an existing Sturman Industries Hydraulic Valve Actuation (HVA) system with the modifications that are required to run the HVA system with Air Power Assist functionality. A Matlab/Simulink model was used to calculate the dynamic response of the HVA system. Computer aided design (CAD) was done in Solidworks for mechanical design and hydraulic layout. At the end of Phase I, 11% fuel economy improvement was predicted. During Phase II, the engine simulation group completed the engine mapping work. The air handling group made substantial progress in identifying suppliers and conducting 3D modelling design. Sturman Industries completed design modification of the HVA system, which was reviewed and accepted by Volvo Powertrain. In Phase II, the possibility of 15% fuel economy improvement was shown with new EGR cooler design by reducing EGR cooler outlet temperature with APA engine technology from Air Handling Group. In addition, Vehicle Simulation with APA technology estimated 4 -21% fuel economy improvement over a wide range of driving cycles. During Phase III, the engine experimental setup was initiated at VPTNA, Hagerstown, MD. Air Handling system and HVA system were delivered to VPTNA and then assembly of APA engine was completed by June 2007. Functional testing of APA engine was performed and AC and AM modes testing were completed by October 2007. After completing testing, data analysis and post processing were performed. Especially, the models were instrumental in identifying some of the key issues with the experimental HVA system. Based upon the available engine test results during AC and AM modes, the projected fuel economy improvement over the NY composite cycle is 14.7%. This is close to but slightly lower than the originally estimated 18% from ADVISOR simulation. The APA project group demonstrated the concept of APA technology by using simulation and experimental testing. However, there are still exists of technical challenges to meet the original expectation of APA technology. The enabling technology of this concept, i.e. a fully flexible valve actuation system that can handle high back pressure from the exhaust manifold is identified as one of the major technical challenges for realizing the APA concept.

  18. Career Map: Electrical Engineer | Department of Energy

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

    Electrical Engineer Career Map: Electrical Engineer Two electrical engineers inspect the electrical components to a turbine. Electrical Engineer Position Title Electrical Engineer Alternate Title(s) Electronics Engineer, Project Engineer, Power Systems, Transmission Engineer Education & Training Level Advanced, bachelor's required, prefer graduate degree Education & Training Level Description Electrical engineers must have a bachelor's degree. Employers also value practical experience,

  19. Windward Engineering | Open Energy Information

    Open Energy Info (EERE)

    Windward Engineering Jump to: navigation, search Name: Windward Engineering Place: Spanish Fork, Utah Zip: 84660 Sector: Wind energy Product: Provides simulations, testing and...

  20. BEW Engineering | Open Energy Information

    Open Energy Info (EERE)

    Services Product: BEW Engineering provides engineering consulting services, and performs research and development in electrical power systems for bulk power and distributed energy...

  1. Visual Engineering | The Ames Laboratory

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

    other engineering products. In addition, Mark Bryden and Doug McCorkle, along with collaborators at NETL and Reaction Engineering International have developed open-source software...

  2. Nuclear Engineering | Argonne National Laboratory

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

    Nuclear Engineering Advancing the safe and secure use of nuclear energy Argonne's Nuclear Engineering (NE) division works to advance nuclear energy as a proven, abundant and ...

  3. Taitem Engineering | Open Energy Information

    Open Energy Info (EERE)

    Taitem Engineering Jump to: navigation, search Name: Taitem Engineering Place: Ithaca, NY Information About Partnership with NREL Partnership with NREL Yes Partnership Type "CRADA"...

  4. Pract Engineering | Open Energy Information

    Open Energy Info (EERE)

    Pract Engineering Jump to: navigation, search Name: Pract Engineering Address: 1150 55th Street, Suite C Place: Emeryville, California Zip: 94608 Region: Bay Area Sector: Renewable...

  5. ION Engineering | Open Energy Information

    Open Energy Info (EERE)

    ION Engineering Jump to: navigation, search Name: ION Engineering Place: Boulder, Colorado Zip: 80301 Sector: Carbon Product: ION is the first clean-tech company to successfully...

  6. INL '@work' Nuclear Engineer

    ScienceCinema (OSTI)

    McLean, Heather

    2013-05-28

    Heather MacLean talks about her job as a Nuclear Engineer for Idaho National Laboratory. For more information about INL careers, visit http://www.facebook.com/idahonationallaboratory.

  7. General Engineer (Project Manager)

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Desert Southwest Region Engineering and Construction (G5600) 615 S. 43rd Avenue...

  8. Displacer for Stirling engine

    SciTech Connect (OSTI)

    Brown, A. T.

    1985-12-24

    In a Stirling engine and the like, a displacer piston having a plurality of internal baffles and insulation so as to prevent undesired heat transfer across the displacer piston.

  9. Rotary vee engine

    SciTech Connect (OSTI)

    Sullivan, R.W.; Holder, T.J.; Buchanan, M.F.

    1991-05-14

    This patent describes a rotary vee engine. It comprises: a housing; two cylinder blocks; angled support shaft means; an air/fuel system; angled pistons; and sealing means for sealing the combustion chamber.

  10. Rotary internal combustion engine

    SciTech Connect (OSTI)

    Murray, J.L.; Mosca, J.O.

    1992-02-25

    This patent describes a rotary internal combustion engine. It includes a housing; a cam track internally disposed within the housing and adapted to receive a cam follower; an engine block disposed within the housing, the engine block being relatively rotatable within the housing about a central axis; means connectable to an external drive member for translating the relative rotation of the engine block with respect to the housing into useful work; at least one radially arranged cylinder assembly on the block, each cylinder assembly including a cylinder having a longitudinal axis extending generally radially outwardly from the rotational axis of the block, the cylinder including means defining an end wall, a piston member disposed within the cylinder and adapted to reciprocate within the cylinder; the piston, cylinder and cylinder end wall together.

  11. Engineering Division Superconducting

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

    ... Engineering Division HEP Accelerator Dipole 10152014 Joseph V. Minervini 58 * Large Hadron Collider (LHC) at CERN uses NbTi dipoles and quadrupoles operating at 8 T, 2 K ...

  12. Student Trainee (General Engineer)

    Broader source: Energy.gov [DOE]

    This position is located in Power Services (P) of the Bonneville Power Administration (BPA). The position involves periods of pertinent formal education and periods of employment in an engineering...

  13. Energy Technology Engineering Center

    Broader source: Energy.gov [DOE]

    The Energy Technology Engineering Center (ETEC) is located within Area IV of the Santa Susana Field Laboratory. The ETEC occupies 90-acres within the 290 acre site. The Santa Susana Field...

  14. Information Systems Engineering

    Broader source: Energy.gov [DOE]

    The OCIO is dedicated to supporting the development and maintenance of DOE Department wide and site-specific software and IT systems engineering initiatives.  This webpage contains resources,...

  15. Liquid metal thermoacoustic engine

    SciTech Connect (OSTI)

    Swift, G.W.; Migliori, A.; Wheatley, J.C.

    1986-01-01

    We are studying a liquid metal thermoacoustic engine both theoretically and experimentally. This type of engine promises to produce large quantities of electrical energy from heat at modest efficiency with no moving parts. A sound wave is usually thought of as consisting of pressure oscillations, but always attendant to the pressure oscillation are temperature oscillations. The combination produces a rich variety of ''thermoacoustic'' effects. These effects are usually so small that they are never noticed in everyday life; nevertheless under the right circumstances they can be harnessed to produce powerful heat engines, heat pumps, and refrigerators. In our liquid metal thermoacoustic engine, heat flow from a high temperature source to a low temperature sink generates a high-amplitude standing acoustic wave in liquid sodium. This acoustic power is converted to electric power by a simple magnetohydrodynamic effect at the acoustic oscillation frequency. We have developed a detailed thermoacoustic theory applicable to this engine, and find that a reasonably designed liquid sodium engine operating between 700/sup 0/C and 100/sup 0/C should generate about 60 W/cm/sup 2/ of acoustic power at about 1/3 of Carnot's efficiency. Construction of a 3000 W-thermal laboratory model engine has just been completed, and we have exciting preliminary experimental results as of the time of preparation of this manuscript showing, basically, that the engine works. We have also designed and built a 1 kHz liquid sodium magnetohydrodynamic generator and have extensive measurements on it. It is now very well characterized both experimentally and theoretically. The first generator of its kind, it already converts acoustic power to electric power with 40% efficiency. 16 refs., 5 figs.

  16. Stirling engine power control

    DOE Patents [OSTI]

    Fraser, James P. (Scotia, NY)

    1983-01-01

    A power control method and apparatus for a Stirling engine including a valved duct connected to the junction of the regenerator and the cooler and running to a bypass chamber connected between the heater and the cylinder. An oscillating zone of demarcation between the hot and cold portions of the working gas is established in the bypass chamber, and the engine pistons and cylinders can run cold.

  17. NGNP Engineering Status

    SciTech Connect (OSTI)

    John Collins

    2010-08-01

    The objectives of Phase 1 Engineering and Design scope are to: 1) complete the initial design activities for a prototype nuclear reactor and plant that is capable of co-generating electricity, hydrogen, and process heat; 2) identify technological aspects of the NGNP that need further advancement by research and development activities; and 3) provide engineering support to the early licensing process, including technical input to white papers and developing the basis for future safety analyses.

  18. UNM School of Engineering

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

    School of Engineering - 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 Fuel Cycle Defense Waste Management Programs Advanced

  19. SCADA Engineering Solutions

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

    Engineering Solutions - 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 Fuel Cycle Defense Waste Management Programs Advanced

  20. scramjet engine simulations

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

    scramjet engine simulations - 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 Fuel Cycle Defense Waste Management Programs

  1. stochastic unit commitment engine

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

    unit commitment engine - 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 Fuel Cycle Defense Waste Management Programs Advanced

  2. Chemical & Engineering News

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

    & Engineering News - 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 Fuel Cycle Defense Waste Management Programs Advanced

  3. Materials Sciences and Engineering

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

    Sciences and Engineering - 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 Fuel Cycle Defense Waste Management Programs Advanced

  4. Nuclear Power & Engineering

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

    Power & Engineering - 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 Fuel Cycle Defense Waste Management Programs Advanced

  5. Predictive Simulation of Engines

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

    Predictive Simulation of Engines - 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 Fuel Cycle Defense Waste Management Programs

  6. Intrinsically irreversible heat engine

    DOE Patents [OSTI]

    Wheatley, John C. (Los Alamos, NM); Swift, Gregory W. (Los Alamos, NM); Migliori, Albert (Santa Fe, NM)

    1984-01-01

    A class of heat engines based on an intrinsically irreversible heat transfer process is disclosed. In a typical embodiment the engine comprises a compressible fluid that is cyclically compressed and expanded while at the same time being driven in reciprocal motion by a positive displacement drive means. A second thermodynamic medium is maintained in imperfect thermal contact with the fluid and bears a broken thermodynamic symmetry with respect to the fluid. the second thermodynamic medium is a structure adapted to have a low fluid flow impedance with respect to the compressible fluid, and which is further adapted to be in only moderate thermal contact with the fluid. In operation, thermal energy is pumped along the second medium due to a phase lag between the cyclical heating and cooling of the fluid and the resulting heat conduction between the fluid and the medium. In a preferred embodiment the engine comprises an acoustical drive and a housing containing a gas which is driven at a resonant frequency so as to be maintained in a standing wave. Operation of the engine at acoustic frequencies improves the power density and coefficient of performance. The second thermodynamic medium can be coupled to suitable heat exchangers to utilize the engine as a simple refrigeration device having no mechanical moving parts. Alternatively, the engine is reversible in function so as to be utilizable as a prime mover by coupling it to suitable sources and sinks of heat.

  7. Intrinsically irreversible heat engine

    DOE Patents [OSTI]

    Wheatley, J.C.; Swift, G.W.; Migliori, A.

    1984-01-01

    A class of heat engines based on an intrinsically irreversible heat transfer process is disclosed. In a typical embodiment the engine comprises a compressible fluid that is cyclically compressed and expanded while at the same time being driven in reciprocal motion by a positive displacement drive means. A second thermodynamic medium is maintained in imperfect thermal contact with the fluid and bears a broken thermodynamic symmetry with respect to the fluid. The second thermodynamic medium is a structure adapted to have a low fluid flow impedance with respect to the compressible fluid, and which is further adapted to be in only moderate thermal contact with the fluid. In operation, thermal energy is pumped along the second medium due to a phase lag between the cyclical heating and cooling of the fluid and the resulting heat conduction between the fluid and the medium. In a preferred embodiment the engine comprises an acoustical drive and a housing containing a gas which is driven at a resonant frequency so as to be maintained in a standing wave. Operation of the engine at acoustic frequencies improves the power density and coefficient of performance. The second thermodynamic medium can be coupled to suitable heat exchangers to utilize the engine as a simple refrigeration device having no mechanical moving parts. Alternatively, the engine is reversible in function so as to be utilizable as a prime mover by coupling it to suitable sources and sinks of heat.

  8. Intrinsically irreversible heat engine

    DOE Patents [OSTI]

    Wheatley, J.C.; Swift, G.W.; Migliori, A.

    1984-12-25

    A class of heat engines based on an intrinsically irreversible heat transfer process is disclosed. In a typical embodiment the engine comprises a compressible fluid that is cyclically compressed and expanded while at the same time being driven in reciprocal motion by a positive displacement drive means. A second thermodynamic medium is maintained in imperfect thermal contact with the fluid and bears a broken thermodynamic symmetry with respect to the fluid. The second thermodynamic medium is a structure adapted to have a low fluid flow impedance with respect to the compressible fluid, and which is further adapted to be in only moderate thermal contact with the fluid. In operation, thermal energy is pumped along the second medium due to a phase lag between the cyclical heating and cooling of the fluid and the resulting heat conduction between the fluid and the medium. In a preferred embodiment the engine comprises an acoustical drive and a housing containing a gas which is driven at a resonant frequency so as to be maintained in a standing wave. Operation of the engine at acoustic frequencies improves the power density and coefficient of performance. The second thermodynamic medium can be coupled to suitable heat exchangers to utilize the engine as a simple refrigeration device having no mechanical moving parts. Alternatively, the engine is reversible in function so as to be utilizable as a prime mover by coupling it to suitable sources and sinks of heat. 11 figs.

  9. Engine systems and methods of operating an engine

    DOE Patents [OSTI]

    Scotto, Mark Vincent

    2015-08-25

    One embodiment of the present invention is a unique method for operating an engine. Another embodiment is a unique engine system. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for engines and engine systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.

  10. Career Map: Mechanical Engineer | Department of Energy

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

    Mechanical Engineer Career Map: Mechanical Engineer A mechanical engineer works with a large yellow robotic arm. Mechanical Engineer Position Title Mechanical Engineer Alternate Title(s) Project Engineer, Quality Engineer, Research Engineer, Design Engineer, Sales Engineer Education & Training Level Advanced, Bachelor's degree required, prefer graduate degree Education & Training Level Description Mechanical engineers need a bachelor's degree. A graduate degree is typically needed for

  11. The Joys of Nuclear Engineering

    ScienceCinema (OSTI)

    Jon Carmack

    2010-01-08

    Nuclear fuels researcher Jon Carmack talks about the satisfactions of a career in nuclear engineering.

  12. Liquid-sodium thermoacoustic engine

    SciTech Connect (OSTI)

    Migliori, A.; Swift, G.W.

    1988-08-01

    We have constructed a thermoacoustic engine that uses liquid sodium as its working substance. The engine generates acoustic power using heat flowing from a high-temperature source to a low-temperature sink. The measured performance of this engine disagrees significantly with numerical calculations based on our theory of thermoacoustic engines. The efficiency of the engine is a substantial fraction of Carnot's efficiency, and its power density is comparable to that of the conventional heat engines in widespread use. Thus we expect this type of engine to be of practical, economic importance.

  13. International combustion engines; Applied thermosciences

    SciTech Connect (OSTI)

    Ferguson, C.R.

    1985-01-01

    Focusing on thermodynamic analysis - from the requisite first law to more sophisticated applications - and engine design, this book is an introduction to internal combustion engines and their mechanics. It covers the many types of internal combustion engines, including spark ignition, compression ignition, and stratified charge engines, and examines processes, keeping equations of state simple by assuming constant specific heats. Equations are limited to heat engines and later applied to combustion engines. Topics include realistic equations of state, stroichiometry, predictions of chemical equilibrium, engine performance criteria, and friction, which is discussed in terms of the hydrodynamic theory of lubrication and experimental methods such as dimensional analysis.

  14. Single rotor turbine engine

    DOE Patents [OSTI]

    Platts, David A. (Los Alamos, NM)

    2002-01-01

    There has been invented a turbine engine with a single rotor which cools the engine, functions as a radial compressor, pushes air through the engine to the ignition point, and acts as an axial turbine for powering the compressor. The invention engine is designed to use a simple scheme of conventional passage shapes to provide both a radial and axial flow pattern through the single rotor, thereby allowing the radial intake air flow to cool the turbine blades and turbine exhaust gases in an axial flow to be used for energy transfer. In an alternative embodiment, an electric generator is incorporated in the engine to specifically adapt the invention for power generation. Magnets are embedded in the exhaust face of the single rotor proximate to a ring of stationary magnetic cores with windings to provide for the generation of electricity. In this alternative embodiment, the turbine is a radial inflow turbine rather than an axial turbine as used in the first embodiment. Radial inflow passages of conventional design are interleaved with radial compressor passages to allow the intake air to cool the turbine blades.

  15. Gas-Fired Reciprocating Engines

    Broader source: Energy.gov [DOE]

    The reciprocating, or piston-driven, engine is a widespread and well-known technology. Also called internal combustion engines, reciprocating engines require fuel, air, compression, and a combustion source to function. Depending on the ignition source, they generally fall into two categories: (1) spark-ignited engines, typically fueled by gasoline or natural gas, and (2) compression-ignited engines, typically fueled by diesel oil fuel.

  16. Ceramic Automotive Stirling Engine Program

    SciTech Connect (OSTI)

    Not Available

    1986-08-01

    The Ceramic Automotive Stirling Engine Program evaluated the application of advanced ceramic materials to an automotive Stirling engine. The objective of the program was to evaluate the technical feasibility of utilizing advanced ceramics to increase peak engine operating temperature, and to evaluate the performance benefits of such an increase. Manufacturing cost estimates were also developed for various ceramic engine components and compared with conventional metallic engine component costs.

  17. Needle Federated Search Engine

    Energy Science and Technology Software Center (OSTI)

    2009-12-01

    The Idaho National Laboratory (INL) has combined a number of technologies, tools, and resources to accomplish a new means of federating search results. The resulting product is a search engine called Needle, an open-source-based tool that the INL uses internally for researching across a wide variety of information repositories. Needle has a flexible search interface that allows end users to point at any available data source. A user can select multiple sources such as commercialmore » databases (Web of Science, Engineering Index), external resources (WorldCat, Google Scholar), and internal corporate resources (email, document management system, library collections) in a single interface with one search query. In the future, INL hopes to offer this open-source engine to the public. This session will outline the development processes for making Needle™s search interface and simplifying the federation of internal and external data sources.« less

  18. Free-piston engine

    DOE Patents [OSTI]

    Van Blarigan, Peter (Truckee, CA)

    2001-01-01

    A combustion system which can utilize high compression ratios, short burn durations, and homogeneous fuel/air mixtures in conjunction with low equivalence ratios. In particular, a free-piston, two-stroke autoignition internal combustion engine including an electrical generator having a linear alternator with a double-ended free piston that oscillates inside a closed cylinder is provided. Fuel and air are introduced in a two-stroke cycle fashion on each end, where the cylinder charge is compressed to the point of autoignition without spark plugs. The piston is driven in an oscillating motion as combustion occurs successively on each end. This leads to rapid combustion at almost constant volume for any fuel/air equivalence ratio mixture at very high compression ratios. The engine is characterized by high thermal efficiency and low NO.sub.x emissions. The engine is particularly suited for generating electrical current in a hybrid automobile.

  19. Advanced turbine technology applications project (ATTAP): Hybrid vehicle turbine engine technology support (HVTE-TS): Annual report, 1993-1994

    SciTech Connect (OSTI)

    1996-03-01

    This is the sixth of a series of reports documenting work performed on the ATTAP/HVTETS. This is a combined report to cover work performed in both 1993 and 1994. Progress is reported on ceramic component design and characterization, powertrain development, component rig testing and performance and durability testing.

  20. Externally heated valve engine -- An alternative to the Stirling engine

    SciTech Connect (OSTI)

    Kazimierski, Z.; Brzeski, L.

    1996-12-31

    A new concept of the Externally Heated Valve (EHV) engine is presented. The principle of the engine operation is described in the introduction to the paper. Heat delivered to the working medium (air) in the heater, or several heaters working commutatively, can come from a combustion chamber or other heat generator such as nuclear reactors or solar collectors. The engine construction is original entirely different from the well-known Stirling engine. New results of the EHV engine computer modeling are presented. This is connected with a new kind of the annular heater applied to the EHV engine. A whirl motion inside the heater is caused to ensure the proper condition of the heat exchanger during the whole engine cycle. Three heaters working commutatively have been considered in this model. Comparisons between the power and efficiency of the Stirling engine and EHV engine have been performed for the same engine capacity, rotational frequency, maximum and minimum temperatures of the working gas and for the same mean pressures of both the engine cycles. The power of the EHV engine is in this case over three times higher than the Stirling engine power, while the efficiency of both the engines is almost the same.

  1. Rotary internal combustion engine

    SciTech Connect (OSTI)

    Murray, J.L.

    1993-07-20

    A multi bank power plant is described comprising at least a first and a second rotary internal combustion engine connectable together in series, each of the engines comprising: a housing; a cam track internally disposed within the housing and adapted to receive a cam follower; an engine block disposed within the housing and rotatable about a central axis; an output shaft extending axially from each the engine block, each output shaft being coaxial with the other; means for coupling the output shafts together so that the output shafts rotate together in the same direction at the same speed; at least one radially arranged cylinder assembly on each block, each cylinder assembly including a cylinder having a longitudinal axis extending generally radially outwardly from the rotational axis of the block, the cylinder including means defining an end wall, a piston member disposed within the cylinder and adapted to reciprocate within the cylinder; a combustion chamber, means permitting periodic introduction of air and fuel into the combustion chamber, means for causing combustion of a compressed mixture of air and fuel within the combustion chamber, means permitting periodic exhaust of products of combustion of air and fuel from the combustion chamber, and means for imparting forces and motions of the piston within the cylinder to and from the cam track, the means comprising a cam follower operatively connected to the piston; wherein the cam track includes at least a first segment and at least a second segment thereof, the first segment having a generally positive slope wherein the segment has a generally increasing radial distance from the rotational axis of the engine block whereby as a piston moves outwardly in a cylinder on a power stroke while the cam follower is in radial register with the cam track segment, the reactive force of the respective cam follower against the cam track segment acts in a direction tending to impart rotation to the engine block.

  2. Rotary engine research

    SciTech Connect (OSTI)

    Not Available

    1992-06-01

    A development history is presented for NASA's 1983-1991 Rotary Engine Enablement Program, emphasizing the CFD approaches to various problems that were instituted from 1987 to the end of the program. In phase I, a test rig was built to intensively clarify and characterize the stratified-charge rotary engine concept. In phase II, a high pressure, electronically controlled fuel injection system was tested. In phase III, the testing of improved fuel injectors led to the achievement of the stipulated 5 hp/cu inch specific power goal. CFD-aided design of advanced rotor-pocket shapes led to additional performance improvements.

  3. E-Alerts: Combustion, engines, and propellants (reciprocation and rotating combustion engines). E-mail newsletter

    SciTech Connect (OSTI)

    1999-04-01

    Design, performance, and testing of reciprocating and rotating engines of various configurations for all types of propulsion. Includes internal and external combustion engines; engine exhaust systems; engine air systems components; engine structures; stirling and diesel engines.

  4. Career Map: Design Engineer | Department of Energy

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

    Design Engineer Career Map: Design Engineer A product designer watches as several engineers work on a wind turbine component. Design Engineer Position Title Design Engineer Alternate Title(s) Materials Engineer, Composite Engineer, Product Designer, Structural Engineer Education & Training Level Bachelor's degree required, graduate degree preferred Education & Training Level Description Design engineers typically hold a bachelor's degree or higher in electrical or mechanical engineering

  5. Thermoacoustic engines and refrigerators

    SciTech Connect (OSTI)

    Swift, G.W.

    1995-07-01

    We ordinarily think of a sound wave in a gas as consisting of coupled pressure and displacement oscillations. However, temperature oscillations always accompany the pressure changes. The combination of all these oscillations, and their interaction with solid boundaries, produces a rich variety of `thermoacoustic` effects. Although these effects as they occur in every-day life are too small to be noticed, one can harness extremely loud sound waves in acoustically sealed chambers to produce powerful heat engines, heat pumps and refrigerators. Whereas typical engines and refrigerators have crankshaft-coupled pistons or rotating turbines, thermoacoustic engines and refrigerators have at most a single flexing moving part (as in a loudspeaker) with no sliding seals. Thermoacoustic devices may be of practical use where simplicity, reliability or low cost is more important than the highest efficiency (although one cannot say much more about their cost-competitiveness at this early stage). This paper discusses the fundamentals of thermoacoustic engines and refrigerators, research in this field, and their commercial development. 16 refs., 5 figs.

  6. Rotary internal combustion engine

    SciTech Connect (OSTI)

    Le, L.K.

    1990-11-20

    This patent describes an internal combustion engine comprising; a rotary compressor mechanism; a rotary expander mechanism; and combustion chamber means disposed between the compressor mechanism and the expander mechanism, whereby compressed air is delivered to the combustion chamber through the compressor discharge port, and pressurized gas is delivered from the combustion chamber into the expander mechanism through the pressurized gas intake port.

  7. Starting of turbine engines

    SciTech Connect (OSTI)

    Shekleton, J.R.

    1990-05-01

    This patent describes a relatively small turbine engine. It comprises: a rotary turbine wheel; a rotary compressor coupled to the turbine wheel; an annular combustor for receiving air from the compressor and fuel from a fuel source combusting the same and providing gases of combustion to the turbine wheel to drive the same; substantially identical main fuel injectors including fuel injecting nozzles angularly spaced about the compressor; fuel and air from the compressor being introduced into the combustor generally in the tangential direction; a fuel pump; a control schedule valve; and first and second main fuel solenoid valves. The first valve being operable to connect a minority of the injectors to the control schedule valve and the fuel pump for starting the engine, there being an even number of the injectors and the minority of injectors consisting of two diametrically opposite injectors; the first and second valves being operable to connect all of the injectors to the control schedule valve and the pump for causing normal operation of the engine; the engine further being characterized by the absence of start fuel injectors for the combustor.

  8. Rotary engine cooling system

    SciTech Connect (OSTI)

    Jones, C.

    1988-07-26

    A rotary internal combustion engine is described comprising: a rotor housing forming a trochoidal cavity therein; an insert of refractory material received in the recess, an element of a fuel injection and ignition system extending through the housing and insert bores, and the housing having cooling passages extending therethrough. The cooling passages are comprised of drilled holes.

  9. DOE Systems Engineering Methodology

    Office of Environmental Management (EM)

    Systems Engineering Methodology (SEM) Computer System Retirement Guidelines Version 3 September 2002 U.S. Department of Energy Office of the Chief Information Officer Computer System Retirement Guidelines Date: September 2002 Page 1 Rev Date: Table of Contents Section Page Purpose ............................................................................................................................................ 2 Initiation and Distribution

  10. Supervisory Interdisciplinary Civil Engineer/Electrical Engineer (0810/0850)

    Broader source: Energy.gov [DOE]

    THIS IS AN INTERDISCIPLINARY POSITION AND MAY BE FILLED WITH ANY OF THE FOLLOWING OCCUPATIONS: Supervisory Civil Engineer, GS-0810-15 Supervisory Electrical Engineer, GS-0850-15 This position is...

  11. Study of Engine Operating Parameter Effects on GDI Engine Particle...

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

    Study of Engine Operating Parameter Effects on GDI Engine Particle-Number Emissions Results show that fuel-injection timing is the dominant factor contributing to PN emissions from ...

  12. Clinton Engineer Works map | Y-12 National Security Complex

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

    Clinton Engineer Works map Clinton Engineer Works map

  13. Argonne National Laboratory's Omnivorous Engine

    SciTech Connect (OSTI)

    Thomas Wallner

    2009-10-16

    Why can't an engine run on any fuel? Argonne is designing an omnivorous engine that can run on any blend of gasoline, ethanol or butanoland calibrate itself to burn that fuel most efficiently.

  14. Free-piston Stirling engine

    SciTech Connect (OSTI)

    Berggren, R.W.; Moynihan, T.M.

    1982-09-01

    A free-piston Stirling engine/linear alternator system (FPSE-010-3), developed under previous Department of Energy (DOE) funding, has been used as a test bed for evaluating selected Stirling engine loss mechanisms. The engine is particularly suited to test-bed operation because engine performance can be evaluated over a wide range of operating conditions; system instrumentation is capable of measuring the effects of system component changes; and modular engine design facilitates the evaluation of alternate component configurations. Extensive testing was performed to establish the operating characteristics of a base-line engine configuration and to characterize specific losses within a Stirling engine. Significant variations in engine performance were observed as the displacer seal clearance was varied. This paper presents selected results from the base-line and displacer seal clearance tests.

  15. Argonne National Laboratory's Omnivorous Engine

    ScienceCinema (OSTI)

    Thomas Wallner

    2010-01-08

    Why can't an engine run on any fuel? Argonne is designing an omnivorous engine that can run on any blend of gasoline, ethanol or butanol?and calibrate itself to burn that fuel most efficiently.

  16. Understanding Stirling engines. Technical paper

    SciTech Connect (OSTI)

    Beale, W.

    1984-01-01

    The paper describes the basic Stirling engine, as well as some of the most promising modern varieties. The intent is to familiarize people in developing countries with the engine's operation and range of applications.

  17. Cummins Rocky Mount Engine Plant

    Broader source: Energy.gov [DOE]

    This presentation by Cummins, Inc. at the 2015 World Energy Engineering Congress shares the Rocky Mount Engine Plant’s experience with achieving certification to Superior Energy Performance® (SEP™)...

  18. Career Map: Aerospace Engineer | Department of Energy

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

    Aerospace Engineer Career Map: Aerospace Engineer An aerospace engineer stands in front of a drivetrain testing machine. Aerospace Engineer Position Title Aerospace Engineer Alternate Title(s) Aeronautical Engineer Education & Training Level Advanced, Bachelor's required, prefer graduate degree Education & Training Level Description Aerospace engineers must have a bachelor's degree in aerospace engineering or another field of engineering or science related to aerospace systems. Brief job

  19. Career Map: Project Engineer | Department of Energy

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

    Project Engineer Career Map: Project Engineer project_engineer.jpg Project Engineer Position Title Project Engineer Alternate Title(s) Construction Engineer, Project Development Engineer Education & Training Level Advanced, Bachelors required Education & Training Level Description Project engineers usually have a bachelor's degree in mechanical, aerospace or electrical engineering. They may also have a degree in other technical disciplines or construction management. Employers also value

  20. Sandia Energy - SCADA Engineering Solutions

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

    Engineering Solutions Home Stationary Power Safety, Security & Resilience of Energy Infrastructure Grid Modernization Cyber Security for Electric Infrastructure National...

  1. Advanced engineering analysis

    SciTech Connect (OSTI)

    Freeman, W.R.

    1992-11-01

    The Advanced Engineering Analysis project is being used to improve the breadth of engineering analysis types, the particular phenomena which may be simulated, and also increase the accuracy and usability of the results of both new and current types of simulations and analyses. This is an interim report covering several topics under this project. Information on two new implementations of failure criteria for metal forming, the implementation of coupled fluid flow/heat transfer analysis capabilities, the integration of experimental shock and vibration test data with analyses, a correction to a contact solution problem with a 3-D parabolic brick finite element, and the development and implementation of a file translator to link IDEAS to DYNA3D is provided in this report.

  2. Electrochemical heat engine

    DOE Patents [OSTI]

    Elliott, Guy R. B. (Los Alamos, NM); Holley, Charles E. (Alcalde, NM); Houseman, Barton L. (Cockeysville, MD); Sibbitt, Jr., Wilmer L. (Albuquerque, NM)

    1978-01-01

    Electrochemical heat engines produce electrochemical work, and mechanical motion is limited to valve and switching actions as the heat-to-work cycles are performed. The electrochemical cells of said heat engines use molten or solid electrolytes at high temperatures. One or more reactions in the cycle will generate a gas at high temperature which can be condensed at a lower temperature with later return of the condensate to electrochemical cells. Sodium, potassium, and cesium are used as the working gases for high temperature cells (above 600 K) with halogen gases or volatile halides being used at lower temperature. Carbonates and halides are used as molten electrolytes and the solid electrolyte in these melts can also be used as a cell separator.

  3. Internal combustion engine

    DOE Patents [OSTI]

    Baker, Quentin A.; Mecredy, Henry E.; O'Neal, Glenn B.

    1991-01-01

    An improved engine is provided that more efficiently consumes difficult fuels such as coal slurries or powdered coal. The engine includes a precombustion chamber having a portion thereof formed by an ignition plug. The precombustion chamber is arranged so that when the piston is proximate the head, the precombustion chamber is sealed from the main cylinder or the main combustion chamber and when the piston is remote from the head, the precombustion chamber and main combustion chamber are in communication. The time for burning of fuel in the precombustion chamber can be regulated by the distance required to move the piston from the top dead center position to the position wherein the precombustion chamber and main combustion chamber are in communication.

  4. Vehicle Technologies Office: 2014 Advanced Combustion Engine...

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

    Advanced Combustion Engine Annual Progress Report Vehicle Technologies Office: 2014 Advanced Combustion Engine Annual Progress Report The Advanced Combustion Engine research and...

  5. Atlanta Chemical Engineering LLC | Open Energy Information

    Open Energy Info (EERE)

    Atlanta Chemical Engineering LLC Jump to: navigation, search Logo: Atlanta Chemical Engineering LLC Name: Atlanta Chemical Engineering LLC Place: Marietta, Georgia Country: United...

  6. BGA Engineering LLC | Open Energy Information

    Open Energy Info (EERE)

    search Name: BGA Engineering LLC Place: Glen Rock, New Jersey Zip: 7452 Sector: Solar Product: Engineering firm specialising in substation engineering and design, power plant...

  7. Sandia National Laboratories: Careers: Aerospace Engineering

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

    Aerospace Engineering Aerospace imagery Sandia's aerospace engineers have provided critical data for the design and analysis of flight vehicles since the 1950s. Aerospace engineers...

  8. Hydrogen Engine Center HEC | Open Energy Information

    Open Energy Info (EERE)

    Engine Center HEC Jump to: navigation, search Name: Hydrogen Engine Center (HEC) Place: Algona, Iowa Zip: IA 50511 Sector: Hydro, Hydrogen Product: The Hydrogen Engine Center (HEC)...

  9. Tasco Engineering Inc | Open Energy Information

    Open Energy Info (EERE)

    Tasco Engineering Inc Jump to: navigation, search Name: Tasco Engineering Inc Place: Lehi, Utah Zip: 84043 Sector: Hydro, Solar, Wind energy Product: Power engineering firm with...

  10. Calypso Engineering Srl | Open Energy Information

    Open Energy Info (EERE)

    Calypso Engineering Srl Jump to: navigation, search Name: Calypso Engineering Srl Place: Albino, Italy Sector: Services, Wind energy Product: Develops and provides engineering...

  11. Vehicle Technologies Office: 2014 Advanced Combustion Engine...

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

    2014 Advanced Combustion Engine Annual Progress Report Vehicle Technologies Office: 2014 Advanced Combustion Engine Annual Progress Report The Advanced Combustion Engine research...

  12. The Use of Exhaust Gas Recirculation to Optimize Fuel Economy and Minimize Emission in Engines Operating on E85 Fuel

    SciTech Connect (OSTI)

    Wu, Ko-Jen

    2011-12-31

    This report summarizes activities conducted for the project The Use of Exhaust Gas Recirculation to Optimized Fuel Economy and Minimize Emissions in Engines Operating on E85 Fuel under COOPERATIVE AGREEMENT NUMBER DE-FC26-07NT43271, which are as outlined in the STATEMENT OF PROJECT OBJECTIVES (SOPO) dated March 2007 and in the supplemental SOPO dated October 2010. The project objective was to develop and demonstrate an internal combustion engine that is optimized for E85 (85% ethanol and 15% gasoline) fuel operation to achieve substantially improved fuel economy while operating with E85 fuel and that is also production viable in the near- to medium-term. The key engine technology selected for research and development was turbocharging, which is known to improve fuel economy thru downsizing and is in particular capable of exploiting ethanol fuels characteristics of high octane number and high latent heat of vaporization. The engine further integrated synergistic efficiency improving technologies of cooled exhaust gas recirculation (EGR), direct fuel injection and dual continuously variable intake and exhaust cam phasers. On the vehicle level, fuel economy was furthered thru powertrain system optimization by mating a state-of-the-art six-speed automatic transmission to the engine. In order to achieve the projects objective of near- to medium-term production viability, it was essential to develop the engine to be flex-fuel capable of operating with fuels ranging from E0 (0% ethanol and 100% gasoline) to E85 and to use three-way type of catalyst technology for exhaust aftertreatment. Within these scopes, various technologies were developed through systems approach to focus on ways to help accelerate catalyst light-off. Significant amount of development took place during the course of the project within General Motors, LLC. Many prototype flex-fuel engines were designed, built and developed with various hardware configurations selected to achieve the project goals. Several flex-fuel demonstration vehicles were designed and built for carrying out calibration development and final testing to quantify the technology merits. Based on the extensive test results collected from dynamometer and vehicle testing, the fuel economy benefits of cooled EGR from the intended level of turbocharger technology were quantified. When combined with turbo downsizing, the FE benefits are considered large enough for E0 fuel as well as for E85 fuel to warrant further development of the technology beyond the current proof-of-concept level to a level that can meet production driveability quality and durability requirements in order to meet customers expectations. Cold-start cart test results from the emissions segment of the project were positive, confirming the assumption of faster thermal response of turbo exhaust system for emissions reductions for both E0 and E85 fuels. Vehicle emissions test results directionally correlated to the cold-start cart findings. The limited number of test runs did demonstrate the potentials of meeting stringent emission standards, however, they did not comprehend the factors such as hardware variability and long-term durability, 3 which are essential for mass production to satisfy customers expectations. It is therefore recommended, moving forward, durability concerns over turbocharger, EGR system and aftertreatment system, which would likely impact production viability, should be addressed. The data moreover suggested that further FE increase is likely with turbocharger technology advancement.

  13. Photonically Engineered Incandescent Emitter

    DOE Patents [OSTI]

    Gee, James M. (Albuquerque, NM); Lin, Shawn-Yu (Albuquerque, NM); Fleming, James G. (Albuquerque, NM); Moreno, James B. (Albuquerque, NM)

    2005-03-22

    A photonically engineered incandescence is disclosed. The emitter materials and photonic crystal structure can be chosen to modify or suppress thermal radiation above a cutoff wavelength, causing the emitter to selectively emit in the visible and near-infrared portions of the spectrum. An efficient incandescent lamp is enabled thereby. A method for fabricating a three-dimensional photonic crystal of a structural material, suitable for the incandescent emitter, is also disclosed.

  14. Modular Aneutronic Fusion Engine

    SciTech Connect (OSTI)

    Gary Pajer, Yosef Razin, Michael Paluszek, A.H. Glasser and Samuel Cohen

    2012-05-11

    NASA's JUNO mission will arrive at Jupiter in July 2016, after nearly five years in space. Since operational costs tend to rise with mission time, minimizing such times becomes a top priority. We present the conceptual design for a 10MW aneutronic fusion engine with high exhaust velocities that would reduce transit time for a Jupiter mission to eighteen months and enable more challenging exploration missions in the solar system and beyond. __________________________________________________

  15. Stirling cycle engine

    DOE Patents [OSTI]

    Lundholm, Gunnar (Lund, SE)

    1983-01-01

    In a Stirling cycle engine having a plurality of working gas charges separated by pistons reciprocating in cylinders, the total gas content is minimized and the mean pressure equalization among the serial cylinders is improved by using two piston rings axially spaced at least as much as the piston stroke and by providing a duct in the cylinder wall opening in the space between the two piston rings and leading to a source of minimum or maximum working gas pressure.

  16. The ESnet Engineering Team

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

    Fasterdata IPv6 Network Network Performance Tools The ESnet Engineering Team Network R&D Software-Defined Networking (SDN) Experimental Network Testbeds Performance (perfSONAR) Software & Tools Development Data for Researchers Partnerships Publications Workshops Science Engagement Move your data Programs & Workshops Science Requirements Reviews Case Studies News & Publications ESnet News Publications and Presentations Galleries ESnet Awards and Honors Blog ESnet Live Home »

  17. Multicylinder compound engine

    SciTech Connect (OSTI)

    Paul, M.A.; Paul, A.

    1990-10-23

    This patent describes a compound, rotary-reciprocal engine. It comprises: a two-cycle reciprocator having cylinders, each cylinder having at least one piston arranged for reciprocation in the cylinder in a cycled operation with a timed air input to the cylinder and a timed exhaust from the cylinder; a compressed air intake and combustion gas exit in each cylinder of the reciprocator; fuel injection means for injecting fuel into the cylinders at appropriate times in the cycled operation; and, a rotocharger.

  18. Ram jet engine

    SciTech Connect (OSTI)

    Crispin, B.; Pohl, W.D.; Thomaier, D.; Voss, N.

    1983-11-29

    In a ram jet engine, a tubular combustion chamber is divided into a flame chamber followed by a mixing chamber. The ram air is supplied through intake diffusers located on the exterior of the combustion chamber. The intake diffusers supply combustion air directly into the flame chamber and secondary air is conveyed along the exterior of the combustion chambers and then supplied directly into the mixing chamber.

  19. Cleaner, More Efficient Diesel Engines

    SciTech Connect (OSTI)

    Musculus, Mark

    2013-08-13

    Mark Musculus, an engine combustion scientist at Sandia National Laboratories, led a study that outlines the science base for auto and engine manufacturers to build the next generation of cleaner, more efficient engines using low-temperature combustion. Here, Musculus discusses the work at Sandia's Combustion Research Facility.

  20. Cleaner, More Efficient Diesel Engines

    ScienceCinema (OSTI)

    Musculus, Mark

    2014-02-26

    Mark Musculus, an engine combustion scientist at Sandia National Laboratories, led a study that outlines the science base for auto and engine manufacturers to build the next generation of cleaner, more efficient engines using low-temperature combustion. Here, Musculus discusses the work at Sandia's Combustion Research Facility.

  1. Environmental, safety, and health engineering

    SciTech Connect (OSTI)

    Woodside, G.; Kocurek, D.

    1997-12-31

    A complete guide to environmental, safety, and health engineering, including an overview of EPA and OSHA regulations; principles of environmental engineering, including pollution prevention, waste and wastewater treatment and disposal, environmental statistics, air emissions and abatement engineering, and hazardous waste storage and containment; principles of safety engineering, including safety management, equipment safety, fire and life safety, process and system safety, confined space safety, and construction safety; and principles of industrial hygiene/occupational health engineering including chemical hazard assessment, personal protective equipment, industrial ventilation, ionizing and nonionizing radiation, noise, and ergonomics.

  2. Gaseous-fuel engine technology

    SciTech Connect (OSTI)

    1995-12-31

    This publication contains three distinct groups of papers covering gaseous-fuel injection and control, gaseous-fuel engine projects, and gaseous-fuel engine/vehicle applications. Contents include: ultra rapid natural gas port injection; a CNG specific fuel injector using latching solenoid technology; development of an electronically-controlled natural gas-fueled John Deere PowerTech 8.1L engine; adapting a Geo Metro to run on natural gas using fuel-injection technology; behavior of a closed loop controlled air valve type mixer on a natural gas fueled engine under transient operation; and a turbocharged lean-burn 4.3 liter natural gas engine.

  3. Honda motor company's CVCC engine

    SciTech Connect (OSTI)

    Abernathy, W.J.; Ronan, L.

    1980-07-01

    Honda Motor Company of Japan in a four-year period from 1968 to 1872 designed, tested, and mass-produced a stratified charge engine, the CVCC, which in comparison to conventional engines of similar output at the time was lower in CO, HC and NO/sub x/ emissions and higher in fuel economy. Honda developed the CVCC engine without government assistance or outside help. Honda's success came at a time when steadily increasing fuel costs and the various provisions of the Clean Air Act had forced US automakers to consider possible alternatives to the conventional gasoline engine. While most major engine manufacturers had investigated some form of stratified charge engine, Honda's CVCC was the only one to find successful market application. This case study examines the circumstances surrounding the development of the CVCC engine and its introduction into the Japanese and American markets.

  4. Analysis Activities at Idaho National Engineering & Environmental...

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

    Activities at Idaho National Engineering & Environmental Laboratory Analysis Activities at Idaho National Engineering & Environmental Laboratory Presentation on INEENL's analysis...

  5. SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Software Configuration...

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

    SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Software Configuration Management Checklist SOFTWARE QUALITY & SYSTEMS ENGINEERING PROGRAM: Software Configuration Management...

  6. Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine...

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

    Turbocharged Direct Injection (GTDI) Engine Development Vehicle Technologies Office Merit Review 2014: Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine ...

  7. Academic-Industry Collaboration (AIC) - Synchrophasor Engineering...

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

    - Synchrophasor Engineering Education Program: Information Exchange Webinar (March 6, 2014) Academic-Industry Collaboration (AIC) - Synchrophasor Engineering Education Program:...

  8. Optimization of Advanced Diesel Engine Combustion Strategies...

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

    More Documents & Publications Optimization of Advanced Diesel Engine Combustion Strategies Optimization of Advanced Diesel Engine Combustion Strategies Computational Fluid Dynamics ...

  9. Career Map: Civil Engineer | Department of Energy

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

    Civil Engineer Career Map: Civil Engineer A civil engineer wearing a safety vest and hard hat stands in front of a wind turbine. Civil Engineer Position Title Civil Engineer Alternate Title(s) Engineer Education & Training Level Bachelors required, prefer graduate degree Education & Training Level Description Civil engineers need a bachelor's degree. They typically need a graduate degree for promotion to managerial positions. Civil engineers who sell their own services publicly must be

  10. China National Machinery Industry Complete Engineering Corporation...

    Open Energy Info (EERE)

    Industry Complete Engineering Corporation CMCEC Jump to: navigation, search Name: China National Machinery Industry Complete Engineering Corporation (CMCEC) Place: Beijing,...

  11. Acoustical heat pumping engine

    DOE Patents [OSTI]

    Wheatley, J.C.; Swift, G.W.; Migliori, A.

    1983-08-16

    The disclosure is directed to an acoustical heat pumping engine without moving seals. A tubular housing holds a compressible fluid capable of supporting an acoustical standing wave. An acoustical driver is disposed at one end of the housing and the other end is capped. A second thermodynamic medium is disposed in the housing near to but spaced from the capped end. Heat is pumped along the second thermodynamic medium toward the capped end as a consequence both of the pressure oscillation due to the driver and imperfect thermal contact between the fluid and the second thermodynamic medium. 2 figs.

  12. Acoustical heat pumping engine

    DOE Patents [OSTI]

    Wheatley, John C. (Los Alamos, NM); Swift, Gregory W. (Los Alamos, NM); Migliori, Albert (Santa Fe, NM)

    1983-08-16

    The disclosure is directed to an acoustical heat pumping engine without moving seals. A tubular housing holds a compressible fluid capable of supporting an acoustical standing wave. An acoustical driver is disposed at one end of the housing and the other end is capped. A second thermodynamic medium is disposed in the housing near to but spaced from the capped end. Heat is pumped along the second thermodynamic medium toward the capped end as a consequence both of the pressure oscillation due to the driver and imperfect thermal contact between the fluid and the second thermodynamic medium.

  13. A loaded thermoacoustic engine

    SciTech Connect (OSTI)

    Olson, J.R.; Swift, G.W.

    1995-11-01

    Measurements and analysis of the performance of a thermoacoustic engine driving a dissipative load are presented. The effect of the load can be explained qualitatively using a simple low-amplitude approximation and quantitatively by invoking a more accurate low-amplitude numerical solution. The heater power {ital @};DQ and hot-end temperature {ital T}{sub {ital H}} are found to be simple functions of the load impedance and the unloaded values of {ital @};DQ and {ital T}{sub {ital H}}. {copyright} {ital 1995} {ital Acoustical} {ital Society} {ital of} {ital America}.

  14. Stratified cross combustion engine

    SciTech Connect (OSTI)

    Rhoads, J.L.

    1981-06-23

    A piston engine is provided in which adjacent cylinder pairs share a common combustion chamber and the pistons are mounted to reciprocate substantially in phase, one of the pistons in each piston pair receiving a rich mixture which is ignited by a sparkplug in that cylinder, with the other cylinder in the cylinder pair being passive in its preferred form, and receiving through a separate intake valve either pure air or a leaner mixture into which the combusted richer mixture pours, insuring that the greatest combustion possible resulting in the greatest percentage of carbon dioxide formation as opposed to carbon monoxide is created.

  15. HANFORD ENGINEER WORKS

    Office of Legacy Management (LM)

    HANFORD ENGINEER WORKS IJd *P-t - - ~~~ssiticatiC+n cwcetted rat G.E. NUCLEONICS PROJECT xi I ~@L.%&~--G-ENERAI,@ ELECTRIC z ,m ._.__.-. _ I--..-. By Authority of. COMPANY ._ Atmic Energy Commission Office of Hanford Dire&xl Operations Riohland, Washington Attention; Mr. Carleton Shugg, Manager ./ ALPKA-ROLLED EL'GIL%I jw -879 ' . *_ a. f' Richland, Washington February 6, 1948 , Thla Dclc.Jv-<en! :-; . ' - -*...-- f_ ~~~.s No .__. ._. .s / ~. - J-LccIp%. Fr:*? fi This will con&rm

  16. RESEARCH AND ENGINEERING COMPANY

    Office of Legacy Management (LM)

    ?' $ 5 . . 7 pi -ON RESEARCH AND ENGINEERING COMPANY CLINTON TOWNSHIP, ROUTE 22 EAST, ANNANDALE, NEW iERSEY 08801 July 18, 1988 Mr. Ken Wills Weston/OTS 20030 Century Blvd Suite 301 Germantown, MD 20874 Dear Ken, Per our conversation on July 11, 1988, enclosed is a current plot plan of the Linden Technology Center (old Standard Oil Development Company site). I hope this satisfies your in- formation needs regarding the study you are doing concerning AEC contractor sites. We believe we have

  17. Climate Engineering with Stratospheric Aerosols and Associated Engineering Parameters

    SciTech Connect (OSTI)

    Kravitz, Benjamin S.

    2013-02-12

    Climate engineering with stratospheric aerosols, an idea inspired by large volcaniceruptions, could cool the Earths surface and thus alleviate some of the predicted dangerous impacts of anthropogenic climate change. However, the effectiveness of climate engineering to achieve a particular climate goal, and any associated side effects, depend on certain aerosol parameters and how the aerosols are deployed in the stratosphere. Through the examples of sulfate and black carbon aerosols, this paper examines "engineering" parameters-aerosol composition, aerosol size, and spatial and temporal variations in deployment-for stratospheric climate engineering. The effects of climate engineering are sensitive to these parameters, suggesting that a particle could be found ordesigned to achieve specific desired climate outcomes. This prospect opens the possibility for discussion of societal goals for climate engineering.

  18. Knock-free engine control system for turbocharged automotive engine

    SciTech Connect (OSTI)

    Hirabayashi, Y.

    1985-04-09

    In a turbocharged internal combustion engine, in order to optimize engine torque output spark timing control and boost pressure control are coordinated in such a manner that spark advance angle is adjusted only when the measured boost pressure equals a predetermined value and is allowed to vary only within a specified range advanced from a reference value derived from an empirical memory table on the basis of engine speed and boost pressure. When engine operating conditions are such that spark advance angle would fall outside of the specified range, spark advance angle is then held at the empirical value and boost pressure is adjusted in order to optimize engine torque. The coordinated control system can also be designed to respond to exhaust gas temperature on a first-priority basis, i.e., when exhaust temperature is sensed to be dangerously high, boost pressure is reduced regardless of other engine conditions.

  19. Rotary engine and method

    SciTech Connect (OSTI)

    Overman, K.

    1991-12-17

    This paper describes a rotary engine. It comprises: an engine block, the block defining an internal rotor cavity, a rotor, the rotor eccentrically positioned within the cavity, the block defining a combustion chamber, the combustion chamber positioned exteriorly of the rotor cavity and in fluid communication therewith, a pair of pistons, the pistons affixed to each other and slidably mounted within the rotor, an air inlet valve, the inlet valve positioned at one side of the combustion chamber, a dual acting outlet valve, the outlet valve comprising a top and a bottom rest, the outlet valve positioned at the other side of the combustion chamber, the combustion chamber defining both an outlet valve ceiling port and an outlet valve floor port, means to ignite fuel, the fuel ignition means located within the combustion chamber between the inlet and outlet valves, the block defining an exhaust port, the exhaust port spaced circumferentially from the combustion chamber and in fluid communication with the rotor cavity, the block defining an inlet port, and the inlet port circumfrentially spaced from the outlet port and in fluid communication with the rotor cavity.

  20. Rotary vee engine

    SciTech Connect (OSTI)

    Sullivan, R.W.; Holder, T.J.; Buchanan, M.F.

    1991-07-09

    This patent describes a rotary vee engine. It comprises a housing having outer ends; two cylinder blocks each having inner and outer ends and mounted in the housing for rotation of one cylinder block about a first rotational axis and rotation of the other cylinder block about a second rotational axis, the axes being angled to intersect adjacent the inner ends of the blocks at an included angle less than one hundred and eighty degrees; each cylinder bloc having cylinders positioned at a selected radial distance from the respective rotational axis and extending parallel to the axis to intersect the inner end of the cylinder block; angled pistons each having a portion disposed in a cylinder of one block and a portion disposed in a cylinder in the other block for orbital motion of the pistons coordinately with the rotation of the cylinder blocks; angled support shaft means for rotatably and axially supporting each of the cylinder blocks in the housing; an improved air/fuel system for directing pressurized charges of air/fuel mixture radially inwardly into each of the cylinders during the operation of the engine comprising; a central cavity formed by the housing between the inner ends of the cylinder blocks for receiving air/fuel mixture.

  1. Rotary reciprical combustion engines

    SciTech Connect (OSTI)

    Blount, D.H.

    1992-10-20

    This patent describes a rotary-reciprocal combustion engine having a cycle which includes the four strokes of intake, compression, expansion and exhaustion, the engine. It comprises: a housing formed with a peripheral wall with side walls, a rotor in the housing, the inner surface of the peripheral inner wall being cylindrical; a shaft; mounted in the center of the housing, passing through the rotor's hub and extending through the side walls of the housing, the hub having means to allow the rotor to reciprocate on the shaft while the shaft is rotating with the rotor; a reciprocal and rotary guide having means to guide the rotary and reciprocal motions of the rotor while keeping the rotor's piston in continuous sealing contact with the cylinder chamber walls and varying the volume of the cylinder chambers enabling a compression of a gaseous mixture to take place after aspirating a gaseous mixture; an ignition system having means for igniting compressed gaseous mixture and expansion of the cylinder chambers due to pressure of the combustion products.

  2. Supervisory Electrical Engineer- Supervisory Power System Real Time Electrical Engineer

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Rocky Mountain Region Power System Operations Operations Engineering, (J4200) 5555...

  3. Intrinsically irreversible thermoacoustic heat engine

    SciTech Connect (OSTI)

    Wheatley, J.; Hofler, T.; Swift, G.W.; Migliori, A.

    1983-07-01

    Certain thermoacoustic effects are described which form the basis for a heat engine that is intrinsically irreversible in the sense that it requires thermal lags for its operation. After discussing several acoustical heating and cooling effects, including the behavior of a new structure called a ''thermoacoustic couple,'' we discuss structures that can be placed in acoustically resonant tubes to produce both substantial heat pumping effects and, for restricted heat inputs, large temperature differences. The results are analyzed quantitatively using a second-order thermoacoustic theory based on the work of Rott. The qualities of the acoustic engine are generalized to describe a class of intrinsically irreversible heat engines of which the present acoustic engine is a special case. Finally the results of analysis of several idealized intrinsically irreversible engines are presented. These suggest that the efficiency of such engines may be determined primarily by geometry or configuration rather than by temperature.

  4. Pressurized-fluid-operated engine

    SciTech Connect (OSTI)

    Holleyman, J.E.

    1990-01-30

    This patent describes a pressurized-fluid-operated reciprocating engine for providing output power by use of a pressurized gas that expands within the engine without combustion. It comprises: an engine block having a plurality of cylinders within which respective pistons are reciprocatable to provide a rotary power output; gas inlet means connected with the engine block for introducing a pressurized gas into the respective cylinders in a predetermined, timed relationship to provide a smooth power output from the engine; gas outlet means connected with the engine block for conveying exhaust gas from the respective cylinders after the gas expanded to move the pistons within the cylinders; and recirculation means extending between the inlet means and the outlet means for recirculation a predetermined quantity of exhaust gas. The recirculation means including ejector means for drawing exhaust gas into the recirculation means.

  5. Volvo SuperTruck - Powertrain Technologies for Efficiency Improvement...

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

    3 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ace060amar2013o.pdf More Documents & Publications...

  6. Volvo SuperTruck - Powertrain Technologies for Efficiency Improvement...

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

    2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ace060amar2012o.pdf More Documents & Publications...

  7. Look-ahead driver feedback and powertrain management

    SciTech Connect (OSTI)

    Verma, Rajeev

    2014-12-31

    Commercial medium and heavy vehicles, though only a small portion of total vehicle population, play a significant role in energy consumption. In 2012, these vehicles accounted for about 5775.5 trillion btu of energy consumption and 408.8 million tons of CO2 emissions annually, which is a quarter of the total energy burden of highway transportation in the United States [1]. This number is expected to surpass passenger car fuel use within the next few decades. In the meantime, most commercial vehicle fleets are running at a very low profit margin. It is a well known fact that fuel economy can vary significantly between drivers, even when they operate the same vehicle on the same route. According to the US Environmental Protection Agency (EPA) and Natural Resource Canada (NRCan), there is up to 35% fuel economy difference between drivers within the same commercial fleet [2] [3], [4]. Similar results were obtained from a Field Operation Test conducted by Eaton Corporation [5]. During this test as much as 30% fuel economy difference was observed among pick-up-and-delivery drivers and 11% difference was observed among line-haul drivers. The driver variability can be attributed to the fact that different drivers react differently to driving conditions such as road grade, traffic, speed limits, etc. For instance, analysis of over 600k miles of naturalistic heavy duty truck driving data [5] indicates that an experienced driver anticipates a downhill and eases up on the throttle to save fuel while an inexperienced driver lacks this judgment.

  8. Heavy Duty Powertrain System Optimization and Emissions Test Procedure Development

    Broader source: Energy.gov [DOE]

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

  9. Look-Ahead Driver Feedback and Powertrain Management

    Broader source: Energy.gov [DOE]

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

  10. Next-generation Ultra-Lean Burn Powertrain

    Broader source: Energy.gov [DOE]

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

  11. Evaluation of Powertrain Options and Component Sizing for MD...

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

    Drive Cycles 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies ... Activities and Heavy Vehicle Systems Optimization Program Annual Progress Report

  12. Unique Hardware and Software Data Acquisition and Processing Solutions in a

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

    Small Engine Test Cell for Enhanced Kinetic Engine Modeling Accuracy | Department of Energy Hardware and Software Data Acquisition and Processing Solutions in a Small Engine Test Cell for Enhanced Kinetic Engine Modeling Accuracy Unique Hardware and Software Data Acquisition and Processing Solutions in a Small Engine Test Cell for Enhanced Kinetic Engine Modeling Accuracy Novel use of AVL data acquisition/processing units provides simultaneous real-time acquisition, processing, and storage

  13. Mechanical Engineering Department Technical Review

    SciTech Connect (OSTI)

    Carr, R.B.; Denney, R.M.

    1981-07-01

    The Mechanical Engineering Department Technical Review is published to inform readers of various technical activities within the Department, promote exchange of ideas, and give credit to personnel who are achieving the results. The report is presented in two parts: technical achievements and publication abstracts. The first is divided into seven sections, each of which reports on an engineering division and its specific activities related to nuclear tests, nuclear explosives, weapons, energy systems, engineering sciences, magnetic fusion, and materials fabrication.

  14. High temperature turbine engine structure

    DOE Patents [OSTI]

    Carruthers, William D. (Mesa, AZ); Boyd, Gary L. (Tempe, AZ)

    1992-01-01

    A high temperature ceramic/metallic turbine engine includes a metallic housing which journals a rotor member of the turbine engine. A ceramic disk-like shroud portion of the engine is supported on the metallic housing portion and maintains a close running clearance with the rotor member. A ceramic spacer assembly maintains the close running clearance of the shroud portion and rotor member despite differential thermal movements between the shroud portion and metallic housing portion.

  15. High temperature turbine engine structure

    DOE Patents [OSTI]

    Carruthers, William D. (Mesa, AZ); Boyd, Gary L. (Tempe, AZ)

    1994-01-01

    A high temperature ceramic/metallic turbine engine includes a metallic housing which journals a rotor member of the turbine engine. A ceramic disk-like shroud portion of the engine is supported on the metallic housing portion and maintains a close running clearance with the rotor member. A ceramic spacer assembly maintains the close running clearance of the shroud portion and rotor member despite differential thermal movements between the shroud portion and metallic housing portion.

  16. High temperature turbine engine structure

    DOE Patents [OSTI]

    Carruthers, William D. (Mesa, AZ); Boyd, Gary L. (Tempe, AZ)

    1993-01-01

    A high temperature ceramic/metallic turbine engine includes a metallic housing which journals a rotor member of the turbine engine. A ceramic disk-like shroud portion of the engine is supported on the metallic housing portion and maintains a close running clearance with the rotor member. A ceramic spacer assembly maintains the close running clearance of the shroud portion and rotor member despite differential thermal movements between the shroud portion and metallic housing portion.

  17. Engineering | Princeton Plasma Physics Lab

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

    Engineering Subscribe to RSS - Engineering This function manages the design, fabrication and operation of PPPL experimental devices, and oversees the Laboratory's facilities and its electrical and infrastructure systems. PPPL engineers design and build state-of-the-art controller for AC to DC converter that manages plasma in upgraded fusion machine The electric current that powers fusion experiments requires superb control. Without it, the magnetic coils the current drives cannot contain and

  18. Facility Engineering | Department of Energy

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

    Facility Engineering Facility Engineering Facility Engineering (FE) programmatic element efforts within EM encompasses real property asset management across the EM complex as well as the transfers of real property to Community Reuse Organizations and other entities for asset revitalization and/or economic development. In addition, FE coordinates, analyzes, and concurs on EM site submission for infrastructure reporting, such as, in the Integrated Facilities and Infrastructure crosscut and the

  19. Resonator coiling in thermoacoustic engines

    SciTech Connect (OSTI)

    Olson, J.R.; Swift, G.W.

    1995-11-01

    Coiling the resonator of a thermoacoustic engine is one way to try to minimize the engine`s size. However, flow in bent pipes is known to alter the fluid flow pattern because of centrifugal forces. Theory and measurements will be presented on the energy dissipation caused by oscillating flow in curved pipes. Measurements have been taken using free oscillations of liquids in U-tubes, and using a thermoacoustic engine with straight and bent resonators. [Work supported by the TTI program of the US Department of Energy, and by the Tektronix Corporation.

  20. Dish Engine | Department of Energy

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

    Concentrating Solar Power » Dish Engine Dish Engine CSP dish engines, which provide high solar concentration and are in use globally, currently hold the world record for solar-to-electric system efficiency at 31.4%. The SunShot Initiative funds (R&D) on dish/engine systems and related aspects within the industry, national laboratories and universities to meet the SunShot goals. An extensive set of core capabilities at the national laboratories support the R&D endeavors. Industry Awards

  1. Sandia Energy - Automotive HCCI Engine

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

    because of its potential to rival the high efficiency of diesel engines while keeping NOx and particulate emissions extremely low. However, researchers must overcome several...

  2. Mission | APS Engineering Support Division

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

    mission, the APS Engineering Support Division provides: Highly reliable, state-of-the-art computer infrastructure to meet the needs of the APS. Leading-edge information...

  3. Electronics Engineer- OPEN CONTINUOUS ANNOUNCEMENT

    Broader source: Energy.gov [DOE]

    This recruitment is an OPEN CONTINUOUS ANNOUNCEMENT (OCA) being utilized to fill current and future Electrical Engineer vacancies within BPA's Transmission Field Services organization. Positions...

  4. Electrical Engineer- OPEN CONTINUOUS ANNOUNCEMENT

    Broader source: Energy.gov [DOE]

    This recruitment is an OPEN CONTINUOUS ANNOUNCEMENT (OCA) being utilized to fill current and future Electrical Engineer vacancies within BPA's Transmission Field Services organization. Positions...

  5. Discover E for budding engineers

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

    with National Engineers Week and is free with no registration required. Boy and Girl Scouts can even use the activities to help earn merit badges. Last year's event...

  6. engineer | OpenEI Community

    Open Energy Info (EERE)

    ancient building system architect biomimicry building technology cooling cu daylight design problem energy use engineer fred andreas geothermal green building heat transfer...

  7. Aztech Engineers | Open Energy Information

    Open Energy Info (EERE)

    Connecticut Zip: 6120 Product: Connecticut-based consulting engineers specializing in HVAC, Plumbing, Fire-Protection, Electrical, and Geo-Thermal Well Systems. Coordinates:...

  8. SC e-journals, Engineering

    Office of Scientific and Technical Information (OSTI)

    ... and Design Geotechnical & Geological Engineering Heat Transfer - Asian Research IEEEACM Transactions on Networking (TON) IETE Journal of Research - OAJ IETE Technical ...

  9. Systems Engineer | Department of Energy

    Energy Savers [EERE]

    disruptions in oil supplies. Organizational Structure: This position is located in the Office of the Assistant Project Manager for Systems & Projects, Systems Engineering and...

  10. Engineering | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    in the engineering sciences field which are needed to ensure the safety, security, reliability and performance of the current and future U.S. nuclear weapons stockpile. ...

  11. RESEARCH PERSONNEL AND ENGINEERING STAFF

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

    Mechanical Engineer Postdoctoral Research Associates Bijay Agrawal - To 122304 Narayana P. Appathurai - To 93004 Lie-Wen Chen - To 9104 Vicenzo Greco Marian Jandel Seweryn...

  12. Quick release engine cylinder

    DOE Patents [OSTI]

    Sunnarborg, Duane A.

    2000-01-01

    A quick release engine cylinder allows optical access to an essentially unaltered combustion chamber, is suitable for use with actual combustion processes, and is amenable to rapid and repeated disassembly and cleaning. A cylinder member, adapted to constrain a piston to a defined path through the cylinder member, sealingly engages a cylinder head to provide a production-like combustion chamber. A support member mounts with the cylinder member. The support-to-cylinder mounting allows two relationships therebetween. In the first mounting relationship, the support engages the cylinder member and restrains the cylinder against the head. In the second mounting relationship, the cylinder member can pass through the support member, moving away from the head and providing access to the piston-top and head.

  13. Internal combustion rotary engine

    SciTech Connect (OSTI)

    Chen, S.P.

    1993-08-24

    An internal combustion rotary engine is described comprising: an internal combustion chamber wherein a combustible fuel-air mixture is ignited for producing a driving gas flow; a central rotor having an outer surface in which at least one group of curved channels circumferentially-and-axially extending without radially extending through the central rotor; and at least one annular rotor each enclosing the central rotor having an inner surface in which a corresponding number of curved channels circumferentially-and-axially extending without radially extending through the annular rotor; when the curved channels in the central rotor communicate with the curved channels in the annular rotor, the driving gas flow circumferentially-and-axially passing between the outer surface of the central rotor and the inner surface of the annular rotor for rotating the central rotor and the annular rotor in opposite directions.

  14. Engine Cylinder Temperature Control

    DOE Patents [OSTI]

    Kilkenny, Jonathan Patrick (Peoria, IL); Duffy, Kevin Patrick (Metamora, IL)

    2005-09-27

    A method and apparatus for controlling a temperature in a combustion cylinder in an internal combustion engine. The cylinder is fluidly connected to an intake manifold and an exhaust manifold. The method and apparatus includes increasing a back pressure associated with the exhaust manifold to a level sufficient to maintain a desired quantity of residual exhaust gas in the cylinder, and varying operation of an intake valve located between the intake manifold and the cylinder to an open duration sufficient to maintain a desired quantity of fresh air from the intake manifold to the cylinder, wherein controlling the quantities of residual exhaust gas and fresh air are performed to maintain the temperature in the cylinder at a desired level.

  15. Career Map: Quality Engineer | Department of Energy

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

    Quality Engineer Career Map: Quality Engineer A male quality engineer sits at a desk with several computers showing data. Quality Engineer Position Title Quality Engineer Alternate Title(s) Quality Assurance, Quality Control Education & Training Level Advanced, Bachelors required, prefer graduate degree or equivalent experience Education & Training Level Description Quality engineers need a bachelor's degree in an engineering field, plus experience. Professional certifications may be

  16. Engineer, Sandia National Laboratories | National Nuclear Security

    National Nuclear Security Administration (NNSA)

    Administration Clifford Ho Engineer, Sandia National Laboratories Clifford Ho Clifford Ho Role: Engineer, Sandia National Laboratories Award: Asian American Engineer of the Year Profile: Clifford Ho, a Sandia engineer, has been selected by the Chinese Institute of Engineers - USA to receive the Asian American Engineer of the Year Award. The honor is presented each year to the nation's most outstanding Asian American engineers and scientists who make significant, lasting and global

  17. Stirling engine with pressurized crankcase

    DOE Patents [OSTI]

    Corey, John A. (Melrose, NY)

    1988-01-01

    A two piston Stirling engine wherein the pistons are coupled to a common crankshaft via bearing means, the pistons include pad means to minimize friction between the pistons and the cylinders during reciprocation of the pistons, means for pressurizing the engine crankcase, and means for cooling the crankshaft and the bearing means eliminating the need for oil in the crankcase.

  18. Rotary valve internal combustion engine

    SciTech Connect (OSTI)

    Bunk, P.H.

    1989-03-28

    A rotary valve internal combustion engine is described, comprising: an engine block; at least one cylinder in the engine block; at least one cylinder having a top end; cylinder head means located adjacent the top end of at least one cylinder, the cylinder head means having a cylindrically shaped cavity therein, the cylindrically shaped cavity being oriented in perpendicular relation to at least one cylinder; a piston sealingly mounted in at least one cylinder for reciprocable movement therein, the reciprocable movement including an intake stroke and an exhaust stroke; engine shaft means rotatably mounted to the engine block; means within the engine block for converting the reciprocable movement of the piston into rotary motion of the engine shaft means; a cylinder port located at the top end of at least one cylinder; a rotary valve rotatably mounted in the cylindrically shaped cavity; means connected with the engine shaft means for rotating the rotary valve in a predetermined synchronization with the reciprocable movement of the piston; aspiration means in the rotary valve for selectively aspirating at least one cylinder during the intake an exhaust strokes; and a spark plug removably mounted within the rotary valve and rotatable therewith.

  19. Stirling Engines and Irrigation Pumping

    SciTech Connect (OSTI)

    West, C.D.

    1987-01-01

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

  20. HCCI Engine Optimization and Control

    SciTech Connect (OSTI)

    Rolf D. Reitz

    2005-09-30

    The goal of this project was to develop methods to optimize and control Homogeneous-Charge Compression Ignition (HCCI) engines, with emphasis on diesel-fueled engines. HCCI offers the potential of nearly eliminating IC engine NOx and particulate emissions at reduced cost over Compression Ignition Direct Injection engines (CIDI) by controlling pollutant emissions in-cylinder. The project was initiated in January, 2002, and the present report is the final report for work conducted on the project through December 31, 2004. Periodic progress has also been reported at bi-annual working group meetings held at USCAR, Detroit, MI, and at the Sandia National Laboratories. Copies of these presentation materials are available on CD-ROM, as distributed by the Sandia National Labs. In addition, progress has been documented in DOE Advanced Combustion Engine R&D Annual Progress Reports for FY 2002, 2003 and 2004. These reports are included as the Appendices in this Final report.

  1. Engine combustion and flow diagnostics

    SciTech Connect (OSTI)

    1995-12-31

    This informative publication discusses the application of diagnostic techniques to internal combustion engines. The papers included fall into three broad categories: flow diagnostics, combustion diagnostics, and fuel spray diagnostics. Contents include: controlling combustion in a spark ignition engine by quantitative fuel distribution; a model for converting SI engine flame arrival signals into flame contours; in-cylinder diesel flame imaging compared with numerical computations; ignition and early soot formation in a DI diesel engine using multiple 2-D imaging diagnostics; investigation of diesel sprays using diffraction-based droplet sizing; fuel distribution effects on the combustion of a direct-injection stratified-charge engine; and 2-D measurements of the liquid phase temperature in fuel sprays.

  2. Engineering Cellulases for Biorefinery

    SciTech Connect (OSTI)

    Manoj Kumar, PhD

    2010-06-27

    Lignocellulosic biomass is the most abundant, least expensive renewable natural biological resource for the production of biobased products and bioenergy is important for the sustainable development of human civilization in 21st century. For making the fermentable sugars from lignocellulosic biomass, a reduction in cellulase production cost, an improvement in cellulase performance, and an increase in sugar yields are all vital to reduce the processing costs of biorefineries. Improvements in specific cellulase activities for non-complexed cellulase mixtures can be implemented through cellulase engineering based on rational design or directed evolution for each cellulase component enzyme, as well as on the reconstitution of cellulase components. In this paper, we will provide DSM's efforts in cellulase research and developments and focus on limitations. Cellulase improvement strategies based on directed evolution using screening on relevant substrates, screening for higher thermal tolerance based on activity screening approaches such as continuous culture using insoluble cellulosic substrates as a powerful selection tool for enriching beneficial cellulase mutants from the large library. We will illustrate why and how thermostable cellulases are vital for economic delivery of bioproducts from cellulosic biomass using biochemical conversion approach.

  3. Axial flow rotary engine

    SciTech Connect (OSTI)

    Loran, W.; Robinson, M.A.

    1989-07-18

    This paper describes an internal combustion engine. It comprises: a housing having an intake port at one end thereof and an exhaust port at the other end thereof; a compression chamber in the housing near the one end; compressor means in the compression chamber; a compressor transfer port opening through the downstream outlet wall; an expansion chamber in the housing near the other end thereof to receive combusted gases; work means in the expansion chamber driven by expanding, combusted gases; means rotating the compressor outlet wall at the same rotational drive speed as the expander inlet wall; an expansion chamber inlet port opening extending through the upstream inlet wall; a cylindrical combustion chamber block rotatable in the housing intermediate the compression chamber and the expansion chamber; at least two combustion chambers in the block; means rotating the block at a reduced speed relative to the speed of rotation of the compressor outlet wall and the expander inlet wall; means for igniting the charge of compressed gas during the intermediate portion of each revolution of the combustion chamber block. The combustion chambers being substantially hemispherical; the speed of rotation of the compressor outlet wall is in the same ratio to the speed of rotation of the combustion chamber block as the number of combustion chambers in the block is to the number of combustion chambers less one.

  4. Subterranean stress engineering experiments

    SciTech Connect (OSTI)

    Campbell, J.R.; Colgate, S.A.; Wheat, B.M.

    1980-01-01

    The state of stress in a subterranean rock mass has classically been assumed to be constant at best. In soil with a high clay content, preconsolidation and drainage methods can lead to more stable foundation material, but methods for engineering the stresses in large masses of rock are not well known. This paper shows the results from an experiment designed to alter the in situ rock stress field in an oil shale mine. This was done by hydrofracturing the rock by use of a packed-well injection system and then propping the crack open with a thixotropic gel, which slowly hardened to the consistency of cement. Successive hydrofracture and high-pressure grouting resulted in an overstressed region. Well-head injection pressures, surface tilts, injection rates, and subterranean strains were measured and recorded on floppy disk by a Z-80 microprocessor. The results were then transmitted to the large computer system at the Los Alamos Scientific Laboratory (LASL). To put the data in a more useful form, computer-generated movies of the tilts and strains were made by use of computer graphics developed at LASL. The purpose of this paper is to present results from the Single Large Instrumented Test conducted in the Colony Oil Shale Mine near Rifle, Colorado. 13 figures.

  5. Acoustic cooling engine

    DOE Patents [OSTI]

    Hofler, Thomas J. (Los Alamos, NM); Wheatley, John C. (Los Alamos, NM); Swift, Gregory W. (Santa Fe, NM); Migliori, Albert (Santa Fe, NM)

    1988-01-01

    An acoustic cooling engine with improved thermal performance and reduced internal losses comprises a compressible fluid contained in a resonant pressure vessel. The fluid has a substantial thermal expansion coefficient and is capable of supporting an acoustic standing wave. A thermodynamic element has first and second ends and is located in the resonant pressure vessel in thermal communication with the fluid. The thermal response of the thermodynamic element to the acoustic standing wave pumps heat from the second end to the first end. The thermodynamic element permits substantial flow of the fluid through the thermodynamic element. An acoustic driver cyclically drives the fluid with an acoustic standing wave. The driver is at a location of maximum acoustic impedance in the resonant pressure vessel and proximate the first end of the thermodynamic element. A hot heat exchanger is adjacent to and in thermal communication with the first end of the thermodynamic element. The hot heat exchanger conducts heat from the first end to portions of the resonant pressure vessel proximate the hot heat exchanger. The hot heat exchanger permits substantial flow of the fluid through the hot heat exchanger. The resonant pressure vessel can include a housing less than one quarter wavelength in length coupled to a reservoir. The housing can include a reduced diameter portion communicating with the reservoir. The frequency of the acoustic driver can be continuously controlled so as to maintain resonance.

  6. Optimization of Engine-out Emissions from a Diesel Engine to...

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

    Engine-out Emissions from a Diesel Engine to Meet Tier 2 Bin 5 Emission Limits Optimization of Engine-out Emissions from a Diesel Engine to Meet Tier 2 Bin 5 Emission Limits...

  7. Regenerative rotary displacer Stirling engine

    SciTech Connect (OSTI)

    Isshiki, Naotsugu; Watanabe, Hiroichi; Raggi, L.; Isshiki, Seita; Hirata, Koichi

    1996-12-31

    A few rotary displacer Stirling engines in which the displacer has one gas pocket space at one side and rotates in a main enclosed cylinder, which is heated from one side and cooled from opposite side without any regenerator, have been studied for some time by the authors. The authors tried to improve this engine by equipping it with a regenerator, because without a regenerator, pressure oscillation and efficiency are too small. Here, several types of regenerative rotary displacer piston Stirling engines are proposed. One is the contra-rotating tandem two disc type displacer engine using axial heat conduction through side walls or by heat pipes and another is a single disc type with circulating fluid regenerator or heat pipes. Stirling engines of this new rotary displacer type are thought to attain high speed. Here, experimental results of the original rotary displacer Stirling engine without a regenerator, and one contra-rotating tandem displacer engine with side wall regenerator by axial heat conduction are reported accompanied with a discussion of the results.

  8. The Rhythm Engineers | Y-12 National Security Complex

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

    The Rhythm Engineers The Rhythm Engineers The Rhythm Engineers entertain in front of a drawing of Jackson Square

  9. Chapter 48 - Value Engineering | Department of Energy

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

    8 - Value Engineering Chapter 48 - Value Engineering PDF icon 48ValueEngineering0.pdf More Documents & Publications Audit Report: OAS-L-07-08 Emerging Lighting Technology...

  10. Categorical Exclusion Determinations: Energy Technology Engineering Center

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

    | Department of Energy Energy Technology Engineering Center Categorical Exclusion Determinations: Energy Technology Engineering Center Categorical Exclusion Determinations issued by Energy Technology Engineering Center. DOCUMENTS AVAILABLE FOR DOWNLOAD No downloads found for this office.

  11. Rotating head and piston engine

    SciTech Connect (OSTI)

    Gomm, T.J.; Messick, N.C.

    1992-07-21

    This patent describes a rotary piston combustion engine. It comprises a housing means, an engine block housing a single toroidal bore, a piston carrier ring spaced outwardly along the entire perimeter of the toroidal bore with at least one finger extending inwardly for piston attachment, a power transfer cylinder, a power output shaft, an auxiliary shaft with driven gearing means meshing with the driving gearing means, a rotating head with windows for piston passage, a trapezoidal porting means in the engine block and in the rotating head, an exhaust port means.

  12. Engine Research Facility | Argonne National Laboratory

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

    Engine Research Facility Argonne's Engine Research Facility allows scientists and engineers to study in-cylinder combustion and emissions under realistic operating conditions. The facility's engines range in size from automobile- to locomotive-sized, as well as stationary electric power production engines. The facility is used to discover and evaluate new technologies to determine their technical feasibility and commercial viability. In addition, Argonne researchers use the facility's engines to

  13. Fermilab | Directorate | Engineering Advisory Council (EAC)

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

    Engineering Advisory Council (EAC) The Engineering Advisory Council is a group of engineering staff at Fermilab whose goal is to address and improve the lives of engineers at the laboratory and encourage a community of open communication and free exchange of ideas. The council will ultimately strive to promote engineering success across the laboratory. Approximately fifteen members of the group are chosen to represent multiple divisions and departments, a range of engineering grade levels, and

  14. LANL computer model boosts engine efficiency

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

    LANL computer model boosts engine efficiency LANL computer model boosts engine efficiency The KIVA model has been instrumental in helping researchers and manufacturers understand combustion processes, accelerate engine development and improve engine design and efficiency. September 25, 2012 KIVA simulation of an experimental engine with DOHC quasi-symmetric pent-roof combustion chamber and 4 valves. KIVA simulation of an experimental engine with DOHC quasi-symmetric pent-roof combustion chamber

  15. Materials Engineering Research Facility | Argonne National Laboratory

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

    Materials Engineering Research Facility Materials Engineering Research Facility exterior 1 of 11 Materials Engineering Research Facility exterior With the Materials Engineering Research Facility's state-of-the-art labs and equipment, Argonne researchers can safely scale up materials from the research bench for commercial testing. Photo courtesy Argonne National Laboratory. Materials Engineering Research Facility exterior 1 of 11 Materials Engineering Research Facility exterior With the Materials

  16. High Efficiency Clean Combustion Engine Designs for Gasoline...

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

    High Efficiency Clean Combustion Engine Designs for Gasoline and Diesel Engines Development of High-Efficiency Clean Combustion Engines Designs for SI and CI Engines Expanding ...

  17. Sandia Energy - Large Eddy Simulation (LES) of Engines

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

    Large Eddy Simulation (LES) of Engines Home Transportation Energy Predictive Simulation of Engines Engine Combustion Modeling Large Eddy Simulation (LES) of Engines Large Eddy...

  18. Fuel Additive Strategies for Enhancing the Performance of Engines...

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

    Additive Strategies for Enhancing the Performance of Engines and Engine Oils Fuel Additive Strategies for Enhancing the Performance of Engines and Engine Oils 2003 DEER Conference ...

  19. advanced combustion engines | netl.doe.gov

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

    Advanced Combustion Engines Improving the efficiency of internal combustion engines is one of the most promising and cost-effective near- to mid-term approaches to increasing...

  20. Michigan: General Motors Optimizes Engine Valve Technology |...

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

    Michigan: General Motors Optimizes Engine Valve Technology Michigan: General Motors Optimizes Engine Valve Technology November 8, 2013 - 12:00am Addthis An EERE-supported effort to ...

  1. Carbon Cycle Engineering | Open Energy Information

    Open Energy Info (EERE)

    Cycle Engineering Jump to: navigation, search Name: Carbon Cycle Engineering Address: 13725 Dutch Creek Road Place: Athens, Ohio Zip: 45701 Sector: Biofuels, Biomass, Efficiency,...

  2. Bicon Namibia Consulting Engineers | Open Energy Information

    Open Energy Info (EERE)

    Name: Bicon Namibia Consulting Engineers Place: Windhoek, Namibia Sector: Wind energy Product: Windhoek-based engineering consultancy firm. Provides design and supervision of...

  3. AVTA: Hydrogen Internal Combustion Engine Vehicle Specifications...

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

    Hydrogen Internal Combustion Engine Vehicle Specifications and Test Procedures AVTA: Hydrogen Internal Combustion Engine Vehicle Specifications and Test Procedures PDF icon HICEV ...

  4. Laser Light Engines | Open Energy Information

    Open Energy Info (EERE)

    Laser Light Engines Jump to: navigation, search Name: Laser Light Engines Place: Salem, New Hampshire Zip: NH 03079 Sector: Efficiency Product: Salem-based, designs, develops and...

  5. A Roadmap for Engineering Piezoelectricity in Graphene

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

    Roadmap for Engineering Piezoelectricity in Graphene A Roadmap for Engineering Piezoelectricity in Graphene Doping this 'Miracle Material' May Lead to New Array of Nanoscale...

  6. China Nuclear Engineering Construction Corporation CNEC | Open...

    Open Energy Info (EERE)

    Nuclear Engineering Construction Corporation CNEC Jump to: navigation, search Name: China Nuclear Engineering & Construction Corporation (CNEC) Place: Beijing, China Zip: 100840...

  7. Advanced Natural Gas Reciprocating Engines (ARES) - Presentation...

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

    Cummins, Inc., June 2011 Advanced Natural Gas Reciprocating Engines (ARES) - Presentation by Cummins, Inc., June 2011 Presentation on Advanced Natural Gas Reciprocating Engines...

  8. Power Engineers Inc | Open Energy Information

    Open Energy Info (EERE)

    Power Engineers Inc Jump to: navigation, search Name: Power Engineers Inc. Place: Hailey, Idaho Zip: 83333 Sector: Geothermal energy, Solar Product: Idaho-based EPC contractor...

  9. Voluntary Protection Program Onsite Review, Facility Engineering...

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

    Facility Engineering Services KCP, LLC - September 2012 Voluntary Protection Program Onsite Review, Facility Engineering Services KCP, LLC - September 2012 September 2012 ...

  10. Shafir Civil Marine Engineering | Open Energy Information

    Open Energy Info (EERE)

    Engineering Jump to: navigation, search Name: Shafir Civil & Marine Engineering Place: Israel Sector: Services Product: Services include infrastructure works, contracting, bridge...

  11. ARM - ARM Engineering and Operations Contacts

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

    Send ARM Engineering and Operations Contacts Technical Coordination Office Person Role Responsible Area PhoneEmail Jim Mather ARM Technical DirectorEngineering Manager...

  12. Thermodynamic Advantages of Low Temperature Combustion Engines...

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

    Advantages of Low Temperature Combustion Engines Including the Use of Low Heat Rejection Concepts Thermodynamic Advantages of Low Temperature Combustion Engines Including the Use of ...

  13. Patent: Thermoacoustic refrigerators and engines comprising cascading

    Office of Scientific and Technical Information (OSTI)

    stirling thermodynamic units | DOEpatents Thermoacoustic refrigerators and engines comprising cascading stirling thermodynamic units Citation Details Title: Thermoacoustic refrigerators and engines comprising cascading stirling thermodynamic units

  14. ORISE: Nuclear engineering graduates decrease in 2009

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

    Nuclear engineering degrees decrease, enrollments increase in 2009 ORISE report shows unexpected decline in 2009 in nuclear engineering degrees but largest enrollment since mid ...

  15. LANL engineers help New Mexico small businesses

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

    Engineers help New Mexico small businesses LANL engineers help New Mexico small businesses Charles Lucero and G. Loren Toole received Principal Investigator Excellence (PIE) Awards...

  16. Enfocus Engineering Corporation | Open Energy Information

    Open Energy Info (EERE)

    Enfocus Engineering Corporation Jump to: navigation, search Name: Enfocus Engineering Corporation Place: Sunnyvale, California Zip: 94087 Product: Enfocus is an early stage company...

  17. Beijing Haohua Rivers International Water Engineering Consulting...

    Open Energy Info (EERE)

    Haohua Rivers International Water Engineering Consulting Co Ltd Jump to: navigation, search Name: Beijing Haohua Rivers International Water Engineering Consulting Co.Ltd. Place:...

  18. Fagen Engineering LLC | Open Energy Information

    Open Energy Info (EERE)

    Fagen Engineering LLC Jump to: navigation, search Name: Fagen Engineering LLC Place: Granite Falls, Minnesota Zip: 56241 Product: Designs and builds ethanol production plants and...

  19. Corporate Systems Engineering | Open Energy Information

    Open Energy Info (EERE)

    Systems Engineering Jump to: navigation, search Name: Corporate Systems Engineering Place: Indianapolis, Indiana Product: Indiana-based energy management company. Coordinates:...

  20. Caledonian College of Engineering | Open Energy Information

    Open Energy Info (EERE)

    Caledonian College of Engineering Jump to: navigation, search Name: Caledonian College of Engineering Place: Oman Product: The College has many labs and workshops for various...

  1. Omnion Power Engineering Corporation | Open Energy Information

    Open Energy Info (EERE)

    Omnion Power Engineering Corporation Jump to: navigation, search Name: Omnion Power Engineering Corporation Place: Walworth County, Wisconsin Zip: 53120 Product: Wisconsin-based...

  2. Functional Design Engineering Inc | Open Energy Information

    Open Energy Info (EERE)

    Functional Design Engineering Inc Jump to: navigation, search Name: Functional Design Engineering Inc Region: United States Sector: Marine and Hydrokinetic Website:...

  3. Geothermal Engineering Ltd | Open Energy Information

    Open Energy Info (EERE)

    Engineering Ltd Jump to: navigation, search Name: Geothermal Engineering Ltd. Place: London, United Kingdom Zip: SW1V 3EL Sector: Geothermal energy Product: Cornwall-based company...

  4. Ruby Canyon Engineering Inc | Open Energy Information

    Open Energy Info (EERE)

    Ruby Canyon Engineering Inc Jump to: navigation, search Name: Ruby Canyon Engineering Inc Place: Grand Junction, Colorado Zip: 81506 Sector: Services Product: String representation...

  5. Principal Associate Director - Science, Technology, and Engineering

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

    Science, Technology, and Engineering As Principal Associate Director for Science, Technology, and Engineering, Alan Bishop leads programs to ensure a world-class science and...

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

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

    Engine Combustion Network (ECN): Global sensitivity analysis of Spray A for different combustion vessels Title Engine Combustion Network (ECN): Global sensitivity analysis of Spray...

  7. ALS Ceramics Materials Research Advances Engine Performance

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

    ALS Ceramics Materials Research Advances Engine Performance ALS Ceramics Materials Research Advances Engine Performance Print Thursday, 27 September 2012 00:00 ritchie ceramics...

  8. Tecno Proget Engineering | Open Energy Information

    Open Energy Info (EERE)

    Name: Tecno Proget Engineering Place: Ragusa, Italy Zip: 97100 Sector: Solar Product: Italian engineering and construction service firm, building a solar plant in Santa Croce...

  9. PMB Engineering Srl | Open Energy Information

    Open Energy Info (EERE)

    navigation, search Name: PMB Engineering Srl Place: Monza, Italy Zip: 20052 Product: Italian construction and engineering contractor acquired by Greentech Energy in August 2007....

  10. HQ Engineering Srl | Open Energy Information

    Open Energy Info (EERE)

    navigation, search Name: HQ Engineering Srl Place: Milano, Italy Zip: 20124 Product: Italian engineering company. Coordinates: 45.468945, 9.18103 Show Map Loading map......

  11. Career Map: Sales Engineer | Department of Energy

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

    Technical Sales Engineers have an in-depth technical knowledge of all turbines, ... A sales engineer creates and tracks their pipeline informing management of new ...

  12. Synchrophasor Engineering Education Program Project Summaries...

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

    Synchrophasor Engineering Education Program Project Summaries Available Synchrophasor Engineering Education Program Project Summaries Available July 9, 2014 - 10:48am Addthis On...

  13. LANL computer model boosts engine efficiency

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

    LANL computer model boosts engine efficiency LANL computer model boosts engine efficiency The KIVA model has been instrumental in helping researchers and manufacturers understand...

  14. Electromechanical Engineering Consulting Group ECG | Open Energy...

    Open Energy Info (EERE)

    Electromechanical Engineering Consulting Group ECG Jump to: navigation, search Name: Electromechanical Engineering Consulting Group (ECG) Place: San Jose, Costa Rica Zip: 1521-1000...

  15. Poster on Subsurface Technology & Engineering Research, Development...

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

    Poster on Subsurface Technology & Engineering Research, Development, and Demonstration Crosscut (SubTER) Poster on Subsurface Technology & Engineering Research, Development, and...

  16. JFE Engineering Inc | Open Energy Information

    Open Energy Info (EERE)

    Inc Jump to: navigation, search Name: JFE Engineering Inc Place: Tokyo, Tokyo, Japan Product: JFE Engineering is a business company responsible for environmentally...

  17. Human Factors Engineering Analysis Tool

    Energy Science and Technology Software Center (OSTI)

    2002-03-04

    HFE-AT is a human factors engineering (HFE) software analysis tool (AT) for human-system interface design of process control systems, and is based primarily on NUREG-0700 guidance.

  18. Clean and Efficient Diesel Engine

    SciTech Connect (OSTI)

    2010-12-31

    Task 1 was to design study for fuel-efficient system configuration. The objective of task 1 was to perform a system design study of locomotive engine configurations leading to a 5% improvement in fuel efficiency. Modeling studies were conducted in GT-Power to perform this task. GT-Power is an engine simulation tool that facilitates modeling of engine components and their system level interactions. It provides the capability to evaluate a variety of engine technologies such as exhaust gas circulation (EGR), variable valve timing, and advanced turbo charging. The setup of GT-Power includes a flexible format that allows the effects of variations in available technologies (i.e., varying EGR fractions or fuel injection timing) to be systematically evaluated. Therefore, development can be driven by the simultaneous evaluation of several technology configurations.

  19. Next Generation Diesel Engine Control

    Broader source: Energy.gov [DOE]

    Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT).

  20. Low-Friction Engineered Surfaces

    Broader source: Energy.gov [DOE]

    Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT).

  1. Rotary-reciprocal combustion engines

    SciTech Connect (OSTI)

    Blount, D.H.

    1992-10-06

    This patent describes an internal combustion engine of the rotary-reciprocal type. It comprises a housing formed with a peripheral wall; a rotor; and a shaft for the rotor.

  2. Vortex Characterization for Engineering Applications

    SciTech Connect (OSTI)

    Jankun-Kelly, M; Thompson, D S; Jiang, M; Shannahan, B; Machiraju, R

    2008-01-30

    Realistic engineering simulation data often have features that are not optimally resolved due to practical limitations on mesh resolution. To be useful to application engineers, vortex characterization techniques must be sufficiently robust to handle realistic data with complex vortex topologies. In this paper, we present enhancements to the vortex topology identification component of an existing vortex characterization algorithm. The modified techniques are demonstrated by application to three realistic data sets that illustrate the strengths and weaknesses of our approach.

  3. Computational Sciences and Engineering Division

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

    If you have questions or comments regarding any of our research and development activities, how to work with ORNL and the Computational Sciences and Engineering (CSE) Division, or the content of this website please contact one of the following people: If you have questions regarding CSE technologies and capabilities, job opportunities, working with ORNL and the CSE Division, intellectual property, etc., contact, Shaun S. Gleason, Ph.D. Division Director, Computational Sciences and Engineering

  4. Computational Sciences and Engineering Division

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

    The Computational Sciences and Engineering Division is a major research division at the Department of Energy's Oak Ridge National Laboratory. CSED develops and applies creative information technology and modeling and simulation research solutions for National Security and National Energy Infrastructure needs. The mission of the Computational Sciences and Engineering Division is to enhance the country's capabilities in achieving important objectives in the areas of national defense, homeland

  5. Cyber Engineering Research Laboratory (CERL)

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

    Engineering Research Laboratory (CERL) - 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 Fuel Cycle Defense Waste Management

  6. Materials Science and Engineering Center

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

    and Engineering Center - 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 Fuel Cycle Defense Waste Management Programs Advanced

  7. Bellcrank mechanisms for Stirling engines

    SciTech Connect (OSTI)

    Senft, J.R.; Senft, V.J.

    1996-12-31

    This paper describes a family of linkage drive systems for Stirling engines containing several new members. These mechanisms are adaptable to all three configurations of Stirling engine, impose minimal side loads on pistons and displacer rods, and include compact forms suitable for pressurized high performance engines. This group of drive systems is generated by a simple common scheme. Near sinusoidal motion is taken from a crankshaft carrying a single crankpin by two connecting rods each driving a bellcrank. The stationary pivots of the bellcranks are located so that their oscillatory motion has the phase angle separation required between the piston and displacer. The bellcranks are further configured to bring the third pin motion to a location suitable for coupling with the piston or displacer of the engine in a way which minimizes side loading. The paper presents a number of new linkage drives from the dual bellcrank family and indicates how they are embodied in beta and alpha type Stirling engines. The paper includes a design for a small multipurpose engine incorporating one of the subject mechanisms.

  8. Protein design for pathway engineering

    SciTech Connect (OSTI)

    Eriksen, DT; Lian, JZ; Zhao, HM

    2014-02-01

    Design and construction of biochemical pathways has increased the complexity of biosynthetically-produced compounds when compared to single enzyme biocatalysis. However, the coordination of multiple enzymes can introduce a complicated set of obstacles to overcome in order to achieve a high titer and yield of the desired compound. Metabolic engineering has made great strides in developing tools to optimize the flux through a target pathway, but the inherent characteristics of a particular enzyme within the pathway can still limit the productivity. Thus, judicious protein design is critical for metabolic and pathway engineering. This review will describe various strategies and examples of applying protein design to pathway engineering to optimize the flux through the pathway. The proteins can be engineered for altered substrate specificity/selectivity, increased catalytic activity, reduced mass transfer limitations through specific protein localization, and reduced substrate/product inhibition. Protein engineering can also be expanded to design biosensors to enable high through-put screening and to customize cell signaling networks. These strategies have successfully engineered pathways for significantly increased productivity of the desired product or in the production of novel compounds. (C) 2013 Elsevier Inc. All rights reserved.

  9. Sandia National Laboratories: Research: Research Foundations: Engineering

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

    Science Research Foundations Bioscience Computing and Information Science Electromagnetics Engineering Science Geoscience Materials Science Nanodevices and Microsystems Radiation Effects and High Energy Density Science Research Engineering Science The Engineering Science Research Foundation is leading engineering transitions in advanced, highly critical systems by integrating theory development, experimental discovery and diagnostics, modeling, and computational approaches to refine our

  10. V160 Stirling engine program update

    SciTech Connect (OSTI)

    Johansson, L.; Torstensson, B.; Williams, T. Y.; Houtman, W.H.; Monahan, R.

    1988-01-01

    Development efforts being made toward the preproduction stage of the V160 Stirling engine are examined. The history of continued reliability encompassing all engine models is reviewed, and efforts towards engine manufacturing and cost reduction are addressed. A preview is given of the initial product line based on the V160 engine and substantiated through testing of the offered configurations.

  11. Cleaning Up Diesel Engines | Department of Energy

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

    Diesel Engines Cleaning Up Diesel Engines 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_witherspoon.pdf More Documents & Publications ADEC II Universal SCR Retrofit System for On-road and Off-road Diesel Engines DIesel Emission Control Technology Developments The Need to Reduce Mobile Source Emissions in the South Coast Air Basin

  12. Light-duty diesel engine development status and engine needs

    SciTech Connect (OSTI)

    Not Available

    1980-08-01

    This report reviews, assesses, and summarizes the research and development status of diesel engine technology applicable to light-duty vehicles. In addition, it identifies specific basic and applied research and development needs in light-duty diesel technology and related health areas where initial or increased participation by the US Government would be desirable. The material presented in this report updates information provided in the first diesel engine status report prepared by the Aerospace Corporation for the Department of Energy in September, 1978.

  13. PL2ESIDCNI The District Engineer, U. S. Engineer Office,

    Office of Legacy Management (LM)

    w. -1. C1P.RSHAW PL2ESIDCNI The District Engineer, U. S. Engineer Office, Kanhattan liistrict, l-J. 0. Box 42, Station New York, N. Y. fi s Attention: Lt. L. C. Burman. Dear Sir: Agreeable to your verbal request, we offer you the following which are all the Uranium Compounds and Cermic Colors containing Uranium in our possession at, our various stock points. ,I ---L-z-- BIACY'C:fln;" URAXW (Approximately 9$ U33,) QOC3 lb. amer lb., f.o.b. East Liverpool, Ohio. ~500 lb. at $2.15 Fer lb.,

  14. Advanced engineering environment collaboration project.

    SciTech Connect (OSTI)

    Lamph, Jane Ann; Pomplun, Alan R.; Kiba, Grant W.; Dutra, Edward G.; Dankiewicz, Robert J.; Marburger, Scot J.

    2008-12-01

    The Advanced Engineering Environment (AEE) is a model for an engineering design and communications system that will enhance project collaboration throughout the nuclear weapons complex (NWC). Sandia National Laboratories and Parametric Technology Corporation (PTC) worked together on a prototype project to evaluate the suitability of a portion of PTC's Windchill 9.0 suite of data management, design and collaboration tools as the basis for an AEE. The AEE project team implemented Windchill 9.0 development servers in both classified and unclassified domains and used them to test and evaluate the Windchill tool suite relative to the needs of the NWC using weapons project use cases. A primary deliverable was the development of a new real time collaborative desktop design and engineering process using PDMLink (data management tool), Pro/Engineer (mechanical computer aided design tool) and ProductView Lite (visualization tool). Additional project activities included evaluations of PTC's electrical computer aided design, visualization, and engineering calculations applications. This report documents the AEE project work to share information and lessons learned with other NWC sites. It also provides PTC with recommendations for improving their products for NWC applications.

  15. Fuel quantity modulation in pilot ignited engines

    DOE Patents [OSTI]

    May, Andrew

    2006-05-16

    An engine system includes a first fuel regulator adapted to control an amount of a first fuel supplied to the engine, a second fuel regulator adapted to control an amount of a second fuel supplied to the engine concurrently with the first fuel being supplied to the engine, and a controller coupled to at least the second fuel regulator. The controller is adapted to determine the amount of the second fuel supplied to the engine in a relationship to the amount of the first fuel supplied to the engine to operate in igniting the first fuel at a specified time in steady state engine operation and adapted to determine the amount of the second fuel supplied to the engine in a manner different from the relationship at steady state engine operation in transient engine operation.

  16. Futuristic concepts in engines and components

    SciTech Connect (OSTI)

    1995-12-31

    This publication includes papers on two-stroke engines and components, Brayton Stirling and Otto Cycles, alternative cycles, advanced combustion, and other related topics. Contents include: Paving the way to controlled combustion engines (CCE); A new class of stratified-charge internal combustion engine; Internal combustion (IC) engine with minimum number of moving parts; New type of heat engine -- externally heated air engine; A porous media burner for reforming methanol for fuel cell powered electric vehicles; Using a Stirling engine simulation program as a regenerator design aid; In-cylinder regenerated engines; High speed electronic fuel injection for direct injected rotary engine; and The characteristics of fuel consumption and exhaust emissions of the side exhaust port rotary engine.

  17. Head, Engineering Department | Princeton Plasma Physics Lab

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

    Head, Engineering Department Department: Engineering Supervisor(s): Deputy Director for Operations Staff: ENG 10 Requisition Number: 1600061 Position Summary: The Head of Engineering is responsible for planning and directing all engineering activities within the Princeton Plasma Physics Laboratory, and supporting the Laboratory mission by designing and operating world class fusion and plasma science experiments and engineering research. The successful candidate will be responsible for recruiting

  18. Performance Engineering Research Center and RECOVERY. Performance

    Office of Scientific and Technical Information (OSTI)

    Engineering Research Institution SciDAC-e Augmentation. Performance enhancement (Technical Report) | SciTech Connect Performance Engineering Research Center and RECOVERY. Performance Engineering Research Institution SciDAC-e Augmentation. Performance enhancement Citation Details In-Document Search Title: Performance Engineering Research Center and RECOVERY. Performance Engineering Research Institution SciDAC-e Augmentation. Performance enhancement This project concentrated on various ways to

  19. Defining engine efficiency limits | Department of Energy

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

    engine efficiency limits Defining engine efficiency limits Investigates the potential to reduce engine efficiency losses and how this impacts the entire system in terms of a direct increase in work output or a change in the loss mechanism. PDF icon deer11_edwards.pdf More Documents & Publications High Efficiency Engine Systems Development and Evaluation Identification and Evaluation of Near-term Opportunities for Efficiency Improvement High Efficiency Engine Systems Development and

  20. Advanced System for Process Engineering

    Energy Science and Technology Software Center (OSTI)

    1992-02-01

    ASPEN (Advanced System for Process Engineering) is a state of the art process simulator and economic evaluation package which was designed for use in engineering fossil energy conversion processes. ASPEN can represent multiphase streams including solids, and handle complex substances such as coal. The system can perform steady state material and energy balances, determine equipment size and cost, and carry out preliminary economic evaluations. It is supported by a comprehensive physical property system for computationmore » of major properties such as enthalpy, entropy, free energy, molar volume, equilibrium ratio, fugacity coefficient, viscosity, thermal conductivity, and diffusion coefficient for specified phase conditions; vapor, liquid, or solid. The properties may be computed for pure components, mixtures, or components in a mixture, as appropriate. The ASPEN Input Language is oriented towards process engineers.« less

  1. Safety device for turbocharged engine

    SciTech Connect (OSTI)

    Kido, Y.

    1986-08-05

    A safety device is described for a turbocharged engine which is provided with a turbocharger comprising a turbine disposed in the exhaust passage and a blower disposed in the intake passage and connected with the turbine by way of a rotary shaft and in which the throttle valve is disposed in the intake passage downstream of the blower. The safety device consists of an engine protective means for controlling the maximum supercharging pressure in the intake passage, at least one pressure sensor for detecting the supercharging pressure downstream of the blower, and a control circuit which actuates the engine protective means when the supercharging pressure detected by the pressure sensor continues to be higher than a preset supercharging pressure for a predetermined time interval. The control circuit includes means for generating the predetermined time interval, the means for generating the predetermined time interval shortening the time interval as the difference between the detected supercharging pressure and the preset supercharging pressure increases.

  2. Steam boosted internal combustion engine

    SciTech Connect (OSTI)

    Green, M.A.

    1987-01-20

    A device is described to supplement the power produced by burning fuel in an internal combustion engine with steam, the device comprising: a means for producing a constant flow of water past a boiler means; a means for allowing the water to flow in the direction of the boiler; a boiler means external to the internal combustion engine to convert the water into superheated steam; a means for controlling the pressure of the water such that the water pressure is greater than the pressure of the steam produced by the boiler; and a means for injection of the superheated steam directly into a cylinder of the internal combustion engine, a means for producing a constant flow of water at a pressure greater than the pressure of the superheated steam, wherein the constant flow means at greater pressure comprises a chamber with a gaseous component, with the gaseous component being of constant volume and exerting constant pressure upon water within the chamber.

  3. Self-pressurizing Stirling engine

    DOE Patents [OSTI]

    Bennett, Charles L. (Livermore, CA)

    2010-10-12

    A solar thermal powered aircraft powered by heat energy from the sun. A heat engine, such as a Stirling engine, is carried by the aircraft body for producing power for a propulsion mechanism, such as a propeller. The heat engine has a thermal battery in thermal contact with it so that heat is supplied from the thermal battery. A solar concentrator, such as reflective parabolic trough, is movably connected to an optically transparent section of the aircraft body for receiving and concentrating solar energy from within the aircraft. Concentrated solar energy is collected by a heat collection and transport conduit, and heat transported to the thermal battery. A solar tracker includes a heliostat for determining optimal alignment with the sun, and a drive motor actuating the solar concentrator into optimal alignment with the sun based on a determination by the heliostat.

  4. Adaptive Systems Engineering: A Medical Paradigm for Practicing Systems Engineering

    SciTech Connect (OSTI)

    R. Douglas Hamelin; Ron D. Klingler; Christopher Dieckmann

    2011-06-01

    From its inception in the defense and aerospace industries, SE has applied holistic, interdisciplinary tools and work-process to improve the design and management of 'large, complex engineering projects.' The traditional scope of engineering in general embraces the design, development, production, and operation of physical systems, and SE, as originally conceived, falls within that scope. While this 'traditional' view has expanded over the years to embrace wider, more holistic applications, much of the literature and training currently available is still directed almost entirely at addressing the large, complex, NASA and defense-sized systems wherein the 'ideal' practice of SE provides the cradle-to-grave foundation for system development and deployment. Under such scenarios, systems engineers are viewed as an integral part of the system and project life-cycle from conception to decommissioning. In far less 'ideal' applications, SE principles are equally applicable to a growing number of complex systems and projects that need to be 'rescued' from overwhelming challenges that threaten imminent failure. The medical profession provides a unique analogy for this latter concept and offers a useful paradigm for tailoring our 'practice' of SE to address the unexpected dynamics of applying SE in the real world. In short, we can be much more effective as systems engineers as we change some of the paradigms under which we teach and 'practice' SE.

  5. Advanced engineering environment pilot project.

    SciTech Connect (OSTI)

    Schwegel, Jill; Pomplun, Alan R.; Abernathy, Rusty

    2006-10-01

    The Advanced Engineering Environment (AEE) is a concurrent engineering concept that enables real-time process tooling design and analysis, collaborative process flow development, automated document creation, and full process traceability throughout a product's life cycle. The AEE will enable NNSA's Design and Production Agencies to collaborate through a singular integrated process. Sandia National Laboratories and Parametric Technology Corporation (PTC) are working together on a prototype AEE pilot project to evaluate PTC's product collaboration tools relative to the needs of the NWC. The primary deliverable for the project is a set of validated criteria for defining a complete commercial off-the-shelf (COTS) solution to deploy the AEE across the NWC.

  6. Environmental Engineer | Department of Energy

    Office of Environmental Management (EM)

    Environmental Engineer Environmental Engineer Submitted by admin on Sat, 2016-03-12 00:15 Job Summary Organization Name Department Of Energy Agency SubElement Federal Energy Regulatory Commission (FERC) Locations Washington DC, District of Columbia Announcement Number FERC-DE-2016-0070 Job Summary If you are ready to begin your new career or are looking for a place to make an impact, what better place than a top 5 agency? We are looking for the best and brightest to join our team of dedicated

  7. Power control for heat engines

    DOE Patents [OSTI]

    Dineen, John J.

    1984-01-01

    A power control arrangement for a Stirling engine includes a sleeve mounted in each cylinder for axial movement and a port in the sleeve leading to a dead space. The port is covered by the piston at a position that is determined by the piston position and the axial adjustment of the sleeve. The compression phase of the Stirling cycle for that piston begins when the port is covered, so the position of the sleeve is used to set the Stirling engine power level.

  8. Vision 2020. Reaction Engineering Roadmap

    SciTech Connect (OSTI)

    Klipstein, David H.; Robinson, Sharon

    2001-01-01

    The Reaction Engineering Roadmap is a part of an industry- wide effort to create a blueprint of the research and technology milestones that are necessary to achieve longterm industry goals. This report documents the results of a workshop focused on the research needs, technology barriers, and priorities of the chemical industry as they relate to reaction engineering viewed first by industrial use (basic chemicals; specialty chemicals; pharmaceuticals; and polymers) and then by technology segment (reactor system selection, design, and scale-up; chemical mechanism development and property estimation; dealing with catalysis; and new, nonstandard reactor types).

  9. Rotary reciprocating internal combustion engine

    SciTech Connect (OSTI)

    Ogren, W.

    1992-06-23

    This patent describes a rotary reciprocating internal combustion engine. It comprises a housing which comprises a cylindrical head with two end and frame plates mounted on both ends of the head enclose the head, the head including a pair of fuel into ports and a pair of exhaust ports, a pair of ring gears; a rotor axially aligned in the cylindrical head and comprising a set of four radially extending cylinders and pistons reciprocable in the cylinders; a power take off shaft fixed to the crank support plates and axially aligned with the rotor; oiling means for oiling the rotary engine; and a set of eight crank gears.

  10. Engineering Evaluation/Cost Analysis

    Office of Environmental Management (EM)

    PPPO/03-0145&D2 Engineering Evaluation/Cost Analysis for Group 1 Buildings X-103, X-334, and X-344B at the Portsmouth Gaseous Diffusion Plant, Piketon, Ohio This document has been approved for public release: Henry H. Thomas (signature on file) 10/29/10 Classification & Information Control Officer Date Restoration Services, Inc. (RSI) contributed to the preparation of this document and should not be considered an eligible contractor for its review DOE/PPPO/03-0145&D2 Engineering

  11. Efficiency bounds for nonequilibrium heat engines

    SciTech Connect (OSTI)

    Mehta, Pankaj; Polkovnikov, Anatoli

    2013-05-15

    We analyze the efficiency of thermal engines (either quantum or classical) working with a single heat reservoir like an atmosphere. The engine first gets an energy intake, which can be done in an arbitrary nonequilibrium way e.g. combustion of fuel. Then the engine performs the work and returns to the initial state. We distinguish two general classes of engines where the working body first equilibrates within itself and then performs the work (ergodic engine) or when it performs the work before equilibrating (non-ergodic engine). We show that in both cases the second law of thermodynamics limits their efficiency. For ergodic engines we find a rigorous upper bound for the efficiency, which is strictly smaller than the equivalent Carnot efficiency. I.e. the Carnot efficiency can be never achieved in single reservoir heat engines. For non-ergodic engines the efficiency can be higher and can exceed the equilibrium Carnot bound. By extending the fundamental thermodynamic relation to nonequilibrium processes, we find a rigorous thermodynamic bound for the efficiency of both ergodic and non-ergodic engines and show that it is given by the relative entropy of the nonequilibrium and initial equilibrium distributions. These results suggest a new general strategy for designing more efficient engines. We illustrate our ideas by using simple examples. -- Highlights: ? Derived efficiency bounds for heat engines working with a single reservoir. ? Analyzed both ergodic and non-ergodic engines. ? Showed that non-ergodic engines can be more efficient. ? Extended fundamental thermodynamic relation to arbitrary nonequilibrium processes.

  12. High temperature turbine engine structure

    DOE Patents [OSTI]

    Boyd, Gary L. (Tempe, AZ)

    1990-01-01

    A high temperature turbine engine includes a hybrid ceramic/metallic rotor member having ceramic/metal joint structure. The disclosed joint is able to endure higher temperatures than previously possible, and aids in controlling heat transfer in the rotor member.

  13. Building America Systems Engineering Approach

    SciTech Connect (OSTI)

    2011-12-15

    The Building America Research Teams use a systems engineering approach to achieve higher quality and energy savings in homes. Using these techniques, the energy consumption of new houses can be reduced by 40% or more with little or no impact on the cost of ownership.

  14. High temperature turbine engine structure

    DOE Patents [OSTI]

    Boyd, Gary L. (Tempe, AZ)

    1991-01-01

    A high temperature turbine engine includes a rotor portion having axially stacked adjacent ceramic rotor parts. A ceramic/ceramic joint structure transmits torque between the rotor parts while maintaining coaxial alignment and axially spaced mutually parallel relation thereof despite thermal and centrifugal cycling.

  15. High Efficiency Engine Technologies Program

    SciTech Connect (OSTI)

    Rich Kruiswyk

    2010-07-13

    Caterpillar's Product Development and Global Technology Division carried out a research program on waste heat recovery with support from DOE (Department of Energy) and the DOE National Energy Technology Laboratory. The objective of the program was to develop a new air management and exhaust energy recovery system that would demonstrate a minimum 10% improvement in thermal efficiency over a base heavy-duty on-highway diesel truck engine. The base engine for this program was a 2007 C15 15.2L series-turbocharged on-highway truck engine with a LPL (low-pressure loop) exhaust recirculation system. The focus of the program was on the development of high efficiency turbomachinery and a high efficiency turbocompound waste heat recovery system. The focus of each area of development was as follows: (1) For turbine stages, the focus was on investigation and development of technologies that would improve on-engine exhaust energy utilization compared to the conventional radial turbines in widespread use today. (2) For compressor stages, the focus was on investigating compressor wheel design parameters beyond the range typically utilized in production, to determine the potential efficiency benefits thereof. (3) For turbocompound, the focus was on the development of a robust bearing system that would provide higher bearing efficiencies compared to systems used in turbocompound power turbines in production. None of the turbocharger technologies investigated involved addition of moving parts, actuators, or exotic materials, thereby increasing the likelihood of a favorable cost-value tradeoff for each technology. And the turbocompound system requires less hardware addition than competing bottoming cycle technologies, making it a more attractive solution from a cost and packaging standpoint. Main outcomes of the program are as follows: (1) Two turbine technologies that demonstrated up to 6% improvement in turbine efficiency on gas stand and 1-3% improvement in thermal efficiency in on-engine testing. (2) A compressor technology that demonstrated 1.5% improvement in compressor efficiency on gas stand compared to production available compressors. (3) A power turbine with high efficiency bearing system that demonstrated excellent rotordynamic stability throughout the required speed range, up to 60,000 rpm. (4) A predicted improvement (using engine simulation) in engine thermal efficiency of 7% at the peak torque design point, when combining the technologies developed in this program.

  16. HCCI in a Variable Compression Ratio Engine: Effects of Engine Variables |

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

    Department of Energy in a Variable Compression Ratio Engine: Effects of Engine Variables HCCI in a Variable Compression Ratio Engine: Effects of Engine Variables 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Southwest Research Institute PDF icon 2004_deer_ryan.pdf More Documents & Publications HCCI - A Technical Review and Progress Report 2006 HCCI - Update of Progress 2005 Fuel Requirements for HCCI Engine Operation

  17. Heavy Duty Diesels - The Road Ahead | Department of Energy

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

    Duty Diesels - The Road Ahead Heavy Duty Diesels - The Road Ahead This presentation gives a landscape picture of diesel engine technologies from the Daimler point of view. PDF icon deer10_bockenhoff.pdf More Documents & Publications Heavy-Duty Powertrain DevelopmentCurrent Status and Future Opportunities Integrated Vehicle and Powertrain Technology for EPA 2010 and Beyond Daimler's SuperTruck Program; 50% Brake Thermal Efficiency

  18. Two-Stroke Engines: New Frontier in Engine Efficiency | Department of

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

    Energy Engines: New Frontier in Engine Efficiency Two-Stroke Engines: New Frontier in Engine Efficiency Companies are revisiting two-stroke engines in the hopes of finding a new frontier in engine efficiency without the additional cost. But, not all two-stroke engines are the same. PDF icon p-21_regner.pdf More Documents & Publications The Opposed-Piston Two-Stroke Engine Alternative: Performance and Emissions Results in a Medium-Duty Application Challenging Conventional Wisdom: A Clean

  19. Advanced Reciprocating Engine System (ARES) | Department of Energy

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

    Advanced Reciprocating Engine System (ARES) Advanced Reciprocating Engine System (ARES) The ARES program is designed to promote separate, but parallel engine development among the major stationary, gaseous fueled engine manufacturers in the United States. PDF icon Advanced Reciprocating Engine Systems (ARES) Brochure More Documents & Publications Advanced Natural Gas Reciprocating Engines (ARES) - Presentation by Cummins, Inc., June 2011 Advanced Natural Gas Reciprocating Engines (ARES) -

  20. Control system and method for a hybrid electric vehicle

    DOE Patents [OSTI]

    Tamor, Michael Alan (Toledo, OH)

    2001-03-06

    Several control methods are presented for application in a hybrid electric vehicle powertrain including in various embodiments an engine, a motor/generator, a transmission coupled at an input thereof to receive torque from the engine and the motor generator coupled to augment torque provided by the engine, an energy storage device coupled to receive energy from and provide energy to the motor/generator, an engine controller (EEC) coupled to control the engine, a transmission controller (TCM) coupled to control the transmission and a vehicle system controller (VSC) adapted to control the powertrain.

  1. Biomass Engineering Ltd | Open Energy Information

    Open Energy Info (EERE)

    Engineering Ltd Jump to: navigation, search Name: Biomass Engineering Ltd Place: Newton-le-Willows, United Kingdom Zip: WA12 8DN Product: The company designs and manufactures small...

  2. Nanocatalysts for Diesel Engine Emissions Remediation

    SciTech Connect (OSTI)

    2009-05-01

    This factsheet describes a research project whose goal is to develop durable zeolite nanocatalysts with broad temperature operating windows to treat diesel engine emissions, thus enabling diesel engine equipment and vehicles to meet regulatory requirements.

  3. Dade Engineering: Order (2013-CE-5316)

    Broader source: Energy.gov [DOE]

    DOE ordered Dade Engineering Corp. to pay a $8,000 civil penalty after finding Dade Engineering had failed to certify that certain models of walk-in cooler and freezer (WICF) components comply with the applicable energy conservation standards.

  4. NRS 532: State Engineer | Open Energy Information

    Open Energy Info (EERE)

    2: State Engineer Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: NRS 532: State EngineerLegal Abstract This statute governs the...

  5. D&D Engineering & Design Guidance

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

    Tailoring Deactivation & Decommissioning EngineeringDesign Activities to the Requirements ... 1 8112010 Tailoring D&D EngineeringDesign to the Requirements of DOE O 413.3A i ...

  6. BPM Diesel Engineering | Open Energy Information

    Open Energy Info (EERE)

    Kingdom Zip: WR12 7NL Product: Converts diesel engines to operate on Dual Fuel using a digital generic system. References: BPM Diesel Engineering1 This article is a stub. You can...

  7. LedEngin Inc | Open Energy Information

    Open Energy Info (EERE)

    LedEngin Inc Jump to: navigation, search Name: LedEngin, Inc Place: Santa Clara, California Zip: 95054 Product: Developer of Light Emitting Diode (LED) technology for medical and...

  8. Heater head for a Stirling engine

    SciTech Connect (OSTI)

    Darooka, D.K.

    1988-09-06

    A heater head is described for a compound Stirling engine modules, each including a displacer cylinder coaxially aligned with the displacer cylinder of the other of the engine modules, a displacer piston mounted for reciprocation in the displacer cylinder.

  9. A reciprocating rotating-block engine

    SciTech Connect (OSTI)

    O`Connor, L.

    1995-06-01

    This article describes the Newbold power plant, a lightweight, clean burning, and efficient engine that is designed to be used in a variety of small-engine applications, from ultralight planes to wheelchairs. A new turbo rotary-power engine brings together different design concepts from engine technology, including the rotary motion of a block, which is applied in a rotary engine, and the reciprocating motion of pistons. The new power plant also uses an air delivery system that operates similar to a turbojet engine. The turbo rotary-power engine, developed by Vernon Newbold, founder of Newbold and Associates, in Lyons, CO, produces power from the heat generated by combustion of most liquid or gaseous fuels. Production engines, expected to be built in August, will be optimized to operate using diesel fuel.

  10. Engineering for Change | Open Energy Information

    Open Energy Info (EERE)

    (American Society of Mechanical Engineers), E4C is a global alliance which now includes IEEE and Engineers Without Borders-USA (EWB-USA). The E4C alliance represents over 500,000...

  11. Engine having multiple pumps driven by a single shaft

    DOE Patents [OSTI]

    Blass, James R. (Bloomington, IL)

    2001-01-01

    An engine comprises an engine housing. A first engine fluid sub-system that includes a first pump and the engine housing defining a first fluid passage is also included in the engine. The engine also includes at least one additional engine fluid sub-system that includes a second pump and the engine housing defining a second fluid passage. A rotating shaft is at least partially positioned in the engine housing, the first pump and the second pump.

  12. Performance bound for real OTEC heat engines

    SciTech Connect (OSTI)

    Wu, C.

    1987-01-01

    Maximum power and efficiency at the maximum power of an irreversible OTEC heat engine are treated. When time is explicitly considered in the energy exchanges between the heat engine and its surroundings, it is found that there is a bound on the efficiency of the real OTEC heat engine at the maximum power condition. This bound can guide the evaluation of existing OTEC systems or influence design of future OTEC heat engines.

  13. Engineering and Materials for Automotive Thermoelectric Applications...

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

    Engineering and Materials for Automotive Thermoelectric Applications Design and optimization of TE exhaust generator, vehicle integration, and thermal management; distributed...

  14. D&D Engineering & Design Guidance

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

    Requiring EngineeringDesign ......9 Activity 4 Process System Deactivation and ... the Waste Isolation Pilot Plant (WIPP), and therefore must ...

  15. National Engineers Week: Future City Competition

    ScienceCinema (OSTI)

    None

    2012-06-14

    2011 Future Cities Competition inspires students all across South Carolina to pursue careers in environmental protection and engineering.

  16. Sandia Energy - Optimizing Engines for Alternative Fuels

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

    Optimizing Engines for Alternative Fuels Home Energy Transportation Energy CRF Facilities News News & Events Research & Capabilities Sensors & Optical Diagnostics Optimizing...

  17. @ work' video segment features Robotic Software Engineer

    ScienceCinema (OSTI)

    Idaho National Laboratory

    2010-01-08

    @ work highlights Idaho National Laboratory employees and the jobs they perform.This segment features Robotic Software Engineer Miles Walton.

  18. Interfacial Chemistry and Engineering Annual Report 2000

    SciTech Connect (OSTI)

    Grate, Jay W.

    2001-08-01

    This annual report describes the research and staff accomplishments in 2000 for the EMSL Interfacial Chemistry and Engineering Directorate.

  19. Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine...

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

    Vehicle Technologies Office Merit Review 2014: Advanced Gasoline Turbocharged Direct Injection (GTDI) Engine Development Advanced Gasoline Turbocharged Direct Injection (GTDI) ...

  20. Nanocatalysts for Diesel Engine Emissions Remediation

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

    Nanocatalysts for Diesel Engine Emissions Remediation Zeolite-Based Nanocatalysts Offer Enhanced Catalyst Performance and Durability Each year, the United States consumes a large volume of petroleum fuel, with more than half of crude oil imported from foreign sources. Diesel engines, which are approximately 30 percent more fuel effcient than gasoline engines, provide one pathway for reducing dependence on imported oil and improving overall energy effciency. The use of improved diesel engines can

  1. Waste shipment engineering data management plan

    SciTech Connect (OSTI)

    Marquez, D.L.

    1995-05-01

    This plan documents current data management practices and future data management improvements for TWRS Waste Shipment Engineering.

  2. Overview of High-Efficiency Engine Technologies

    Broader source: Energy.gov [DOE]

    Perspective on past and current status, and future directions in heavy- and light-duty diesel engines

  3. Institute for Molecular Engineering | Argonne National Laboratory

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

    Learn more about the Institute for Molecular Engineering. When completed in early 2015, the William Eckhardt Research Center at the University of Chicago will be the home of the Institute of Molecular Engineering. Institute for Molecular Engineering The new Institute for Molecular Engineering explores innovative technologies that address fundamental societal problems through advances in nanoscale manipulation and design at a molecular scale. Addressing Societal Problems with Molecular Science

  4. Variable Compression Ratio Engine | Department of Energy

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

    Compression Ratio Engine Variable Compression Ratio Engine 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon ace_43_mendler.pdf More Documents & Publications Vehicle Technologies Office Merit Review 2014: High Efficiency VCR Engine with Variable Valve Actuation and new Supercharging Technology Vehicle Technologies Office Merit Review 2015: High Efficiency VCR Engine with Variable Valve

  5. E85 Optimized Engine | Department of Energy

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

    Engine E85 Optimized Engine 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon ft_12_agarwal.pdf More Documents & Publications Turbocharged Spark Ignited Direct Injection - A Fuel Economy Solution for The US High Efficiency Clean Combustion in Multi-Cylinder Light-Duty Engines Addressing the Challenges of RCCI Operation on a Light-Duty Multi-Cylinder Engine

  6. Physical Sciences & Engineering Directorate Organization Chart...

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

    About Us Awards and Achievements Organization Chart Contact Us Physical Sciences & Engineering Directorate Organization Chart PDF icon pseorgchart.pdf...

  7. Mechanical Engineer | Princeton Plasma Physics Lab

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

    Mechanical Engineer Department: Engineering Supervisor(s): Bill Blanchard Staff: EM 3 Requisition Number: 1500 The Mechanical Design Engineer will develop, design, manufacture, and test mechanical components and auxiliary systems required for support of the experimental devices. The engineer will also design, specify, fabricate, and erect various mechanical structures to provide support against gravitational and electromagnetic forces. The position requires knowledge of stress analysis, magnetic

  8. Engineer, Sandia National Laboratories | National Nuclear Security

    National Nuclear Security Administration (NNSA)

    Administration Sandra Begay-Campbell Engineer, Sandia National Laboratories Sandra Begay-Campbell Sandra Begay-Campbell Role: Engineer, Sandia National Laboratories Award: Ely S. Parker Award Profile: Sandra Begay-Campbell, a Sandia National Laboratories engineer and a member of the Navajo Nation, was selected for the prestigious Ely S. Parker Award by the American Indian Science and Engineering Society at an honors banquet Oct. 31 in Portland, Ore. Begay-Campbell, who has worked at Sandia

  9. Ladies and Gentlemen, Start Your Engines

    DOE R&D Accomplishments [OSTI]

    Lang, Kathryn

    2011-03-28

    Fundamental studies in catalysis enabled the use of efficient �lean-burn� engines for vehicle transportation.

  10. Heat engine generator control system

    DOE Patents [OSTI]

    Rajashekara, Kaushik (Carmel, IN); Gorti, Bhanuprasad Venkata (Towson, MD); McMullen, Steven Robert (Anderson, IN); Raibert, Robert Joseph (Fishers, IN)

    1998-01-01

    An electrical power generation system includes a heat engine having an output member operatively coupled to the rotor of a dynamoelectric machine. System output power is controlled by varying an electrical parameter of the dynamoelectric machine. A power request signal is related to an engine speed and the electrical parameter is varied in accordance with a speed control loop. Initially, the sense of change in the electrical parameter in response to a change in the power request signal is opposite that required to effectuate a steady state output power consistent with the power request signal. Thereafter, the electrical parameter is varied to converge the output member speed to the speed known to be associated with the desired electrical output power.

  11. Heat engine generator control system

    DOE Patents [OSTI]

    Rajashekara, K.; Gorti, B.V.; McMullen, S.R.; Raibert, R.J.

    1998-05-12

    An electrical power generation system includes a heat engine having an output member operatively coupled to the rotor of a dynamoelectric machine. System output power is controlled by varying an electrical parameter of the dynamoelectric machine. A power request signal is related to an engine speed and the electrical parameter is varied in accordance with a speed control loop. Initially, the sense of change in the electrical parameter in response to a change in the power request signal is opposite that required to effectuate a steady state output power consistent with the power request signal. Thereafter, the electrical parameter is varied to converge the output member speed to the speed known to be associated with the desired electrical output power. 8 figs.

  12. Molecular engineering with bridged polysilsesquioxanes

    SciTech Connect (OSTI)

    LOY,DOUGLAS A.; SHEA,KENNETH J.

    2000-05-09

    Bridged polysilsesquioxanes are a class of hybrid organic-inorganic materials that permit molecular engineering of bulk properties including porosity. Prepared by sol-gel polymerization of monomers with two or more trialkoxysilyl groups, the materials are highly cross-linked amorphous polymers that are readily obtained as gels. The bridging configuration of the hydrocarbon group insures that network polymers are readily formed and that the organic functionality is homogeneously distributed throughout the polymeric scaffolding at the molecular level. This permits the bulk properties, including surface area, pore size, and dielectric constant to be engineered through the selection of the bridging organic group. Numerous bridging groups have been incorporated. This presentation will focus on the effects that the length, flexibility, and substitution geometry of the hydrocarbon bridging groups have on the properties of the resulting bridged polysilsesquioxanes. Details of the preparation, characterization, and some structure property relationships of these bridged polysilsesquioxanes will be given.

  13. Stirling engine with pressurized crankcase

    SciTech Connect (OSTI)

    Corey, J.A.

    1988-08-23

    This patent describes a Stirling cycle engine comprising an engine housing which includes compression and expansion cylinders and a crankcase area; a compression piston and an expansion piston positioned in respective cylinders in the housing and coupled to a common crankshaft via bearing means. The crankshaft being positioned in the crankcase area which is defined by the pistons and the housing. The pistons includes pad means between the pistons and their respective cylinders to minimize the friction therebetween during reciprocal movement thereof; the crankcase being pressurized to inhibit the passing of working gas past the pistons; and means for cooling the crankshaft and the bearing means eliminating the need for oil in the crankcase.

  14. Internal combustion engine fuel feed

    SciTech Connect (OSTI)

    Cochard, P.; Guicherd, C.

    1980-02-19

    In a method and apparatus for controlling the fuel feed to a stratified-charge internal combustion engine, from idle up to the position corresponding with the maximum flow of air, the overall richness (Rg) of the combustible mixture is reduced by acting simultaneously upon the flow of fuel feeding the main chamber and upon the flow of fuel injected into the auxiliary chamber. For higher loads the maximum flow of air is kept constant and rg is increased by continuing to act upon both fuel flows. By keeping the richness of the mixture in the auxiliary chamber substantially constant, it is possible to obtain the best compromise between the performance of the engine and the emission of pollutant gases.

  15. The 60% Efficient Diesel Engine: Probably, Possible, Or Just...

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

    The 60% Efficient Diesel Engine: Probably, Possible, Or Just a Fantasy? The 60% Efficient Diesel Engine: Probably, Possible, Or Just a Fantasy? 2005 Diesel Engine Emissions...

  16. Examining Effects of Lubricant Composition in Engine Component...

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

    to Enhance Engine Efficiency (LFEEE) in Modern Internal Combustion Engines Engine Friction Reduction Through Surface Finish and Coatings Vehicle Technologies Office: 2012 Fuel...

  17. BioEnergy Engineering LLC | Open Energy Information

    Open Energy Info (EERE)

    Engineering LLC Jump to: navigation, search Name: BioEnergy Engineering LLC Place: Tennessee Sector: Biofuels Product: A biofuels engineering and design firm with proprietary...

  18. Technology Development for Light Duty High Efficient Diesel Engines...

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

    Light Duty High Efficient Diesel Engines Technology Development for Light Duty High Efficient Diesel Engines Improve the efficiency of diesel engines for light duty applications ...

  19. Heavy-Duty Engine Combustion Optimization for High Thermal Efficiency...

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

    Targeting EPA 2010 Emissions Heavy-Duty Engine Combustion Optimization for High ... High Efficiency Clean Combustion for Heavy-Duty Engine Heavy Truck Engine Development & ...

  20. Technical Challenges and Opportunities Light-Duty Diesel Engines...

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

    Challenges and Opportunities Light-Duty Diesel Engines in North America Technical Challenges and Opportunities Light-Duty Diesel Engines in North America 2005 Diesel Engine ...

  1. Experimental and Statistical Comparison of Engine Response as...

    Office of Scientific and Technical Information (OSTI)

    Experimental and Statistical Comparison of Engine Response as a Function of Fuel Chemistry ... Engine Response as a Function of Fuel Chemistry and Properties in CI and HCCI Engines ...

  2. Neutral Beam Mechanical Engineer | Princeton Plasma Physics Lab

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

    Mechanical Engineer Department: Engineering Supervisor(s): Tim Stevenson Staff: ENG 04 Requisition Number: 1500578 Provides general Mechanical Engineering and operations support...

  3. New Mexico Office of the State Engineer | Open Energy Information

    Open Energy Info (EERE)

    Office of the State Engineer Jump to: navigation, search Logo: New Mexico Office of the State Engineer Name: New Mexico Office of the State Engineer Abbreviation: NMOSE Address:...

  4. Computational Fluid Dynamics Modeling of Diesel Engine Combustion...

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

    Computational Fluid Dynamics Modeling of Diesel Engine Combustion and Emissions Computational Fluid Dynamics Modeling of Diesel Engine Combustion and Emissions 2005 Diesel Engine...

  5. Fuels and Lubricants to Support Advanced Diesel Engine Technology...

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

    Lubricants to Support Advanced Diesel Engine Technology Fuels and Lubricants to Support Advanced Diesel Engine Technology 2005 Diesel Engine Emissions Reduction (DEER) Conference...

  6. Advanced Modeling of Direct-Injection Diesel Engines | Department...

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

    Modeling of Direct-Injection Diesel Engines Advanced Modeling of Direct-Injection Diesel Engines 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters ...

  7. GCL Engineering Ltd formerly Jiangsu Suyuan Environment Protection...

    Open Energy Info (EERE)

    Engineering Ltd formerly Jiangsu Suyuan Environment Protection Engineering Jump to: navigation, search Name: GCL Engineering Ltd (formerly Jiangsu Suyuan Environment Protection...

  8. CRAD, NNSA - Conduct of Engineering (CE) | Department of Energy

    Office of Environmental Management (EM)

    Conduct of Engineering (CE) CRAD, NNSA - Conduct of Engineering (CE) CRAD for Conduct of Engineering (CE). Criteria Review and Approach Documents (CRADs) that can be used to...

  9. Dynamic simulation of kinematic Stirling engines: Coupled and...

    Office of Scientific and Technical Information (OSTI)

    Dynamic simulation of kinematic Stirling engines: Coupled and decoupled analysis Citation ... Subject: 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; STIRLING ENGINES; MATHEMATICAL ...

  10. MIT- Energy Science and Engineering Laboratory | Open Energy...

    Open Energy Info (EERE)

    Science and Engineering Laboratory Jump to: navigation, search Logo: MIT- Energy Science and Engineering Laboratory Name: MIT- Energy Science and Engineering Laboratory Address: 77...

  11. Sandia Energy - Large Eddy Simulation (LES) of Engines

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

    Large Eddy Simulation (LES) of Engines Home Transportation Energy Predictive Simulation of Engines Reacting Flow Modeling Large Eddy Simulation (LES) of Engines Large Eddy...

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

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

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

  13. North American Market Challenges for Diesel Engines | Department...

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

    American Market Challenges for Diesel Engines North American Market Challenges for Diesel Engines 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Gale Banks...

  14. Hot gas engine heater head

    DOE Patents [OSTI]

    Berntell, John O. (Staffanstorp, SE)

    1983-01-01

    A heater head for a multi-cylinder double acting hot gas engine in which each cylinder is surrounded by an annular regenerator unit, and in which the tops of each cylinder and its surrounding regenerator are interconnected by a multiplicity of heater tubes. A manifold for the heater tubes has a centrally disposed duct connected to the top of the cylinder and surrounded by a wider duct connecting the other ends of the heater tubes with the regenerator unit.

  15. Comparison between two Lysholm engines

    SciTech Connect (OSTI)

    Frau, B.A.

    1983-01-01

    The University of California at Berkeley (UCB) and the Jet Propulsion Laboratory (JPL) both have been working on the Lysholm engine as an expander of two phase geothermal brine. The sizes of the machines, (The machine at UCB is rated at 25 kW, and the machine that JPL tested is rated at 1MW) as well as the approaches, are different. Here, some comparisons are made in order to clarify the direction in which future efforts should be conducted.

  16. RESEARCH PERSONNEL AND ENGINEERING STAFF

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

    RESEARCH PERSONNEL AND ENGINEERING STAFF April 1, 2000 - March 31, 2001 FACULTY AND RESEARCH GROUP LEADERS Carl A. Gagliardi, Professor of Physics John C. Hardy, Professor of Physics Che Ming Ko, Professor of Physics Akram Mukhamedzhanov, Research Scientist Joseph B. Natowitz, Professor of Chemistry, Director Richard P. Schmitt, Professor of Chemistry Robert E. Tribble, Professor of Physics Rand L. Watson, Professor of Chemistry Sherry J. Yennello, Associate Professor of Chemistry Shalom

  17. RESEARCH PERSONNEL AND ENGINEERING STAFF

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

    PERSONNEL AND ENGINEERING STAFF April 1, 2001 - March 31, 2002 FACULTY AND RESEARCH GROUP LEADERS Carl A. Gagliardi Professor of Physics John C. Hardy Professor of Physics Che Ming Ko Professor of Physics Akram Mukhamedzhanov Research Scientist Joseph B. Natowitz Professor of Chemistry, Director Richard P. Schmitt Professor of Chemistry Shalom Shlomo Senior Scientist Robert E. Tribble Professor of Physics Rand L. Watson Professor of Chemistry Sherry J. Yennello Associate Professor of Chemistry

  18. RESEARCH PERSONNEL AND ENGINEERING STAFF

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

    RESEARCH PERSONNEL AND ENGINEERING STAFF April 1, 2010 - March 31, 2011 Faculty and Research Group Leaders Aldo Bonasera, Research Scientist Charles M. Folden III, Assist. Prof. of Nuclear Chemistry Rainer Fries, Assist. Professor of Physics Carl A. Gagliardi, Professor of Physics John C. Hardy, Professor of Physics Che Ming Ko, Professor of Physics Dan Melconian, Assist. Professor of Physics Saskia Mioduszewski, Assist. Prof. of Physics J. B. Natowitz, Professor of Chemistry, Bright Chair Ralf

  19. Impacts of Advanced Combustion Engines

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

    Impacts of Advanced Combustion Engines This presentation does not contain any proprietary, confidential, or otherwise restricted information VSS140 2015 U.S. DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting June 9, 2015 Principal Investigators: Scott Curran, Presenter Zhiming Gao, David Smith, Stuart Daw 2 ORNL - 2015 VSS 140 AMR OVERVIEW Timeline * Project start date: Oct. 2013 * Project end date: Continuing * Activity scope changes to

  20. I Laser Engineered Net Shaping

    Office of Scientific and Technical Information (OSTI)

    I Laser Engineered Net Shaping (LENS?: A Tool for Direct Fabrication of Metal Parts* Clint Atwood, Michelle GriBth, Lane Harwell, Eric Schlienger, Mark Ensz, John Smugeresky, Tony Romero, Don G-reene, Daryl Reckaway LENSm Project Team Sandia National Laboratories PO Box 5800, Mail Stop 0958 Albuquerque, NM, USA 87185-0958 Abstract For many years, Sandia National Laboratories has been involved in the development and application of rapid prototyping and direct fabrication technologies to build