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Sample records for health shuttle bus

  1. Laboratory Shuttle Bus Routes

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

    UC Campus, Downtown Berkeley BART, and Rockridge BART stations. Shuttles offer free wifi onboard. Riders are asked to adhere to riding instructions. Active shuttle stops are...

  2. Shuttle Bus and Couriers | Department of Energy

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

    Shuttle Bus and Couriers Shuttle Bus and Couriers Shuttle Bus Route and Schedule The DOE Shuttle Buses follow the same schedules between the two main Headquarters locations, Forrestal and Germantown. The buses start their routes at each Headquarters facility at the same times, see the schedule below. The subsequent stops at the other facilities are relative to the departure time of each route. The shuttle bus departure and arrival times may be impacted by traffic, weather, or other logistical

  3. DOE HQ Shuttle Bus Schedule and Route | Department of Energy

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

    Shuttle Bus Schedule and Route DOE HQ Shuttle Bus Schedule and Route The DOE Shuttle Buses follow the same schedules between the two main Headquarters locations, Forrestal and Germantown. The buses start their routes at each Headquarters facility at the same times, see the schedule below. The subsequent stops at the other facilities are relative to the departure time of each route. The shuttle bus departure and arrival times may be impacted by traffic, weather, or other logistical interruptions.

  4. AVTA: Idaho National Laboratory Experimental Hybrid Shuttle Bus...

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

    (part of the medium and heavy-duty truck data) describes testing results of the Idaho National Laboratory's demonstration hybrid shuttle bus. This research was conducted by Idaho ...

  5. AVTA: Idaho National Laboratory Experimental Hybrid Shuttle Bus Testing Results

    Broader source: Energy.gov [DOE]

    The following report describes testing results of the Idaho National Laboratory's demonstration hybrid shuttle bus. This research was conducted by Idaho National Laboratory.

  6. DIMETHYL ETHER (DME)-FUELED SHUTTLE BUS DEMONSTRATION PROJECT

    SciTech Connect (OSTI)

    Elana M. Chapman; Shirish Bhide; Jennifer Stefanik; Howard Glunt; Andre L. Boehman; Allen Homan; David Klinikowski

    2003-04-01

    The objectives of this research and demonstration program are to convert a campus shuttle bus to operation on dimethyl ether, a potential ultra-clean alternative diesel fuel. To accomplish this objective, this project includes laboratory evaluation of a fuel conversion strategy, as well as, field demonstration of the DME-fueled shuttle bus. Since DME is a fuel with no lubricity (i.e., it does not possess the lubricating quality of diesel fuel), conventional fuel delivery and fuel injection systems are not compatible with dimethylether. Therefore, to operate a diesel engine on DME one must develop a fuel-tolerant injection system, or find a way to provide the necessary lubricity to the DME. In this project, they have chosen the latter strategy in order to achieve the objective with minimal need to modify the engine. The strategy is to blend DME with diesel fuel, to obtain the necessary lubricity to protect the fuel injection system and to achieve low emissions. The bulk of the efforts over the past year were focused on the conversion of the campus shuttle bus. This process, started in August 2001, took until April 2002 to complete. The process culminated in an event to celebrate the launching of the shuttle bus on DME-diesel operation on April 19, 2002. The design of the system on the shuttle bus was patterned after the system developed in the engine laboratory, but also was subjected to a rigorous failure modes effects analysis with help from Dr. James Hansel of Air Products. The result of this FMEA was the addition of layers of redundancy and over-pressure protection to the system on the shuttle bus. The system became operation in February 2002. Preliminary emissions tests and basic operation of the shuttle bus took place at the Pennsylvania Transportation institute's test track facility near the University Park airport. After modification and optimization of the system on the bus, operation on the campus shuttle route began in early June 2002. However, the work

  7. DIMETHYL ETHER (DME)-FUELED SHUTTLE BUS DEMONSTRATION PROJECT

    SciTech Connect (OSTI)

    Elana M. Chapman; Shirish Bhide; Jennifer Stefanik; Howard Glunt; Andre L. Boehman; Allen Homan; David Klinikowski

    2003-04-01

    The objectives of this research and demonstration program are to convert a campus shuttle bus to operation on dimethyl ether, a potential ultra-clean alternative diesel fuel. To accomplish this objective, this project includes laboratory evaluation of a fuel conversion strategy, as well as, field demonstration of the DME-fueled shuttle bus. Since DME is a fuel with no lubricity (i.e., it does not possess the lubricating quality of diesel fuel), conventional fuel delivery and fuel injection systems are not compatible with dimethyl ether. Therefore, to operate a diesel engine on DME one must develop a fuel-tolerant injection system, or find a way to provide the necessary lubricity to the DME. In this project, they have chosen the latter strategy in order to achieve the objective with minimal need to modify the engine. Their strategy is to blend DME with diesel fuel, to obtain the necessary lubricity to protect the fuel injection system and to achieve low emissions. The bulk of the efforts over the past year were focused on the conversion of the campus shuttle bus. This process, started in August 2001, took until April 2002 to complete. The process culminated in an event to celebrate the launching of the shuttle bus on DME-diesel operation on April 19, 2002. The design of the system on the shuttle bus was patterned after the system developed in the engine laboratory, but also was subjected to a rigorous failure modes effects analysis (FMEA, referred to by Air Products as a ''HAZOP'' analysis) with help from Dr. James Hansel of Air Products. The result of this FMEA was the addition of layers of redundancy and over-pressure protection to the system on the shuttle bus. The system became operational in February 2002. Preliminary emissions tests and basic operation of the shuttle bus took place at the Pennsylvania Transportation Institute's test track facility near the University Park airport. After modification and optimization of the system on the bus, operation on the

  8. Development of a Dimethyl Ether (DME)-Fueled Shuttle Bus | Department...

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

    Development of a Dimethyl Ether (DME)-Fueled Shuttle Bus Chapter 7 - Advancing Systems and Technologies to Produce Cleaner Fuels Alternative Fuels lDimethyl Ether Rheology and ...

  9. DIMETHYL ETHER (DME)-FUELED SHUTTLE BUS DEMONSTRATION PROJECT

    SciTech Connect (OSTI)

    Elana M. Chapman; Shirish Bhide; Jennifer Stefanik; Andre L. Boehman; David Klinikowski

    2003-04-01

    The objectives of this research and demonstration program are to convert a campus shuttle bus to operation on dimethyl ether, a potential ultra-clean alternative diesel fuel. To accomplish this objective, this project includes laboratory evaluation of a fuel conversion strategy, as well as, field demonstration of the DME-fueled shuttle bus. Since DME is a fuel with no lubricity (i.e., it does not possess the lubricating quality of diesel fuel), conventional fuel delivery and fuel injection systems are not compatible with dimethyl ether. Therefore, to operate a diesel engine on DME one must develop a fuel-tolerant injection system, or find a way to provide the necessary lubricity to the DME. In this project, they have chosen the latter strategy in order to achieve the objective with minimal need to modify the engine. The strategy is to blend DME with diesel fuel, to obtain the necessary lubricity to protect the fuel injection system and to achieve low emissions. The laboratory studies have included work with a Navistar V-8 turbodiesel engine, demonstration of engine operation on DME-diesel blends and instrumentation for evaluating fuel properties. The field studies have involved performance, efficiency and emissions measurements with the Champion Motorcoach ''Defender'' shuttle bus which will be converted to DME-fueling. The results include baseline emissions, performance and combustion measurements on the Navistar engine for operation on a federal low sulfur diesel fuel (300 ppm S). Most recently, they have completed engine combustion studies on DME-diesel blends up to 30 wt% DME addition.

  10. All Other Editions Are Obsolete U.S. Department of Energy Shuttle Bus Passenger List

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

    511.1 (02-94) All Other Editions Are Obsolete U.S. Department of Energy Shuttle Bus Passenger List Date: Time: Bus Number: Driver's Signature: The U.S. Department of Energy (DOE) Shuttle operates Express between the Germantown Building and the Washington Office (Forrestal Building). ICC regulations prohibits en-route stops. The information being collected below is for the purpose of identifying individuals utilizing DOE Shuttle service. It is not retrievable by a personal identifier and is,

  11. DOE_HQ_Shuttle_Bus_Route-and-Schedule (05-2016).docx

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

    May, 2016 DOE HQ Shuttle Bus Route and Schedule The DOE Shuttle Buses follow the same schedules between the two main Headquarters locations, Forrestal and Germantown. The buses start their routes at each Headquarters facility at the same times, see the schedule below. The subsequent stops at the other facilities are relative to the departure time of each route. Headquarters employees are reminded of the statutory provisions that authorize and limit the use of the shuttle bus service. Specific

  12. DIMETHYL ETHER (DME)-FUELED SHUTTLE BUS DEMONSTRATION PROJECT

    SciTech Connect (OSTI)

    Elana M. Chapman; Shirish Bhide; Andre L. Boehman; David Klinikowski

    2003-04-01

    The objectives of this research and demonstration program are to convert a campus shuttle bus to operation on dimethyl ether, a potential ultra-clean alternative diesel fuel. To accomplish this objective, this project includes laboratory evaluation of a fuel conversion strategy, as well as field demonstration of the DME-fueled shuttle bus. Since DME is a fuel with no lubricity (i.e., it does not possess the lubricating quality of diesel fuel), conventional fuel delivery and fuel injection systems are not compatible with dimethyl ether. Therefore, to operate a diesel engine on DME one must develop a fuel-tolerant injection system, or find a way to provide the necessary lubricity to the DME. In this project, they have chosen the latter strategy in order to achieve the objective with minimal need to modify the engine. The strategy is to blend DME with diesel fuel, to obtain the necessary lubricity to protect the fuel injection system and to achieve low emissions. Within the Combustion Laboratory of the Penn State Energy Institute, they have installed and equipped a Navistar V-8 direct-injection turbodiesel engine for measurement of gaseous and particulate emissions and examination of the impact of fuel composition on diesel combustion. They have also reconfigured a high-pressure viscometer for studies of the viscosity, bulk modulus (compressibility) and miscibility of blends of diesel fuel, dimethyl ether and lubricity additives. The results include baseline emissions, performance and combustion measurements on the Navistar engine for operation on a federal low sulfur diesel fuel (300 ppm S). Most recently, they have examined blends of an oxygenated fuel additive (a liquid fuel called CETANER{trademark}) produced by Air Products, for comparison with dimethyl ether blended at the same weight of oxygen addition, 2 wt.%. While they have not operated the engine on DME yet, they are now preparing to do so. A fuel system for delivery of DME/Diesel blends has been configured

  13. DOE HQ Shuttle Bus Route and Schedule, April 2016

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

    The bus stops are located at: > Germantown - East side of Germantown building (cafeteria side) > Cloverleaf Building* - Front entrance (end of sidewalk near the roadway) * Note: At ...

  14. DOE_HQ_Shuttle_Bus_Route-and-Schedule (05-2016).docx

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

    The bus stops are located at: > Germantown - East side of Germantown building (cafeteria side) > 270 Corporate Center (20300 Century Boulevard) - Front entrance > Portals - Main ...

  15. Development of a rotary engine powered APU for a medium duty hybrid shuttle bus. Interim report July 1995--July 1996

    SciTech Connect (OSTI)

    McBroom, S.T.

    1998-07-01

    Under contract to the TARDEC Petroleum and Water Business Area, sponsored by the Defense Advanced Research Projects Agency, SwRI has procured and installed a rotary Auxiliary Power Unit on a medium-duty series hybrid electric bus. This report covers the specification and distillation of the APU and the lessons learned from those efforts.

  16. DOE HQ Shuttle Bus Route and Schedule

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

    at 1201 Maryland Ave., S.W. > L'Enfant Plaza - Opposite side of the roadway in front of ... leaving from the Forrestal and L'Enfant Plaza facilities should contact (202) 586-5235. ...

  17. Laboratory Shuttle Bus Routes: Combined Routes

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

    Combined Routes & Schedules Blue Route Orange Route Rockridge Route Potter St.JBEI Route Combined Routes and Schedules (On-SiteOff-Site) Scroll down or click here for schedule...

  18. Shuttle Bus and Couriers | Department of Energy

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

    or the removal of 53 passenger cars from the roads. Bio-diesel helps to: Reduce petroleum consumption and dependency on foreign oil Improve air quality Provide outlets for...

  19. Argonne-University of Chicago Shuttle | Argonne National Laboratory

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

    Directory Argonne National Laboratory About Safety News Careers Education Community Diversity Directory Energy Environment Security User Facilities Science Work with Argonne Visiting Argonne Site Access Policy Map Argonne-University of Chicago Shuttle Map of Argonne Argonne-University of Chicago Shuttle The schedule below is effective March 17, 2014. A free shuttle bus makes round trips every weekday between Argonne National Laboratory and The University of Chicago. The shuttle does not run on

  20. NREL's Hydrogen-Powered Bus Serves as Showcase for Advanced Vehicle Technologies (AVT) (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2010-08-01

    Brochure describes the hydrogen-powered internal combustion engine (H2ICE) shuttle bus at NREL. The U.S. Department of Energy (DOE) is funding the lease of the bus from Ford to demonstrate market-ready advanced technology vehicles to visitors at NREL.

  1. Hydrogen powered bus

    ScienceCinema (OSTI)

    None

    2013-11-22

    Take a ride on a new type of bus, fueled by hydrogen. These hydrogen taxis are part of a Department of Energy-funded deployment of hydrogen powered vehicles and fueling infrastructure at nine federal facilities across the country to demonstrate this market-ready advanced technology. Produced and leased by Ford Motor Company , they consist of one 12- passenger bus and one nine-passenger bus. More information at: http://go.usa.gov/Tgr

  2. Fuel Cell Bus Workshop

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

    ue Ce ec o o es o a Energy Efficiency & Renewable Energy Fuel Cell Bus Workshop Overview and Purp pose Dimitrios Papageorgopoulos Fuel Cell Technolog gies Prog gram DOE and DOT Joint Fuel Cell Bus Workshop, Washington DC DOE and DOT Joint Fuel Cell Bus Workshop, Washington DC June 7, 2010 June 7, 2010 Fuel Cells - Addressing Energy Challenges Energy Efficiency and Resource Diversity * Fuel cells offer a highly efficient way to use diverse fuels and energy sources Fuel cells offer a highly

  3. Bus.py

    Energy Science and Technology Software Center (OSTI)

    2014-07-21

    GridLAB-D is an agent? based distribution system simulation environment that allows fine-grained end-user models, including geospatial and network topology detail. GridLAB-D addresses the lack of runtime interaction by designing a flexible communication interface, Bus.py (pronounced bus-dot-pie), that uses Python to pass messages between one or more GridLAB-D instances and a Smart Grid simulator.

  4. Savannah River bus project

    SciTech Connect (OSTI)

    Summers, W.A.

    1998-08-01

    The H2Fuel Bus is the world`s first hybrid hydrogen electric transit bus. It was developed through a public/private partnership involving several leading technology and industrial organizations in the Southeast, with primary funding and program management provided by the Department of Energy. The primary goals of the project are to gain valuable information on the technical readiness and economic viability of hydrogen buses and to enhance the public awareness and acceptance of emerging hydrogen technologies. The bus has been operated by the transit agency in Augusta, Georgia since April, 1997. It employs a hybrid IC engine/battery/electric drive system, with onboard hydrogen fuel storage based on the use of metal hydrides. Initial operating results have demonstrated an overall energy efficiency (miles per Btu) of twice that of a similar diesel-fueled bus and an operating range twice that of an all-battery powered electric bus. Tailpipe emissions are negligible, with NOx less than 0.2 ppm. Permitting, liability and insurance issues were addressed on the basis of extensive risk assessment and safety analyses, with the inherent safety characteristic of metal hydride storage playing a major role in minimizing these concerns. Future plans for the bus include continued transit operation and use as a national testbed, with potential modifications to demonstrate other hydrogen technologies, including fuel cells.

  5. Analysis of the University of Texas at Austin compressed natural gas demonstration bus. Interim research report

    SciTech Connect (OSTI)

    Wu, C.M.; Matthews, R.; Euritt, M.

    1994-06-01

    A demonstration compressed natural gas (CNG) bus has been operating on The University of Texas at Austin shuttle system since 1992. This CNG vehicle, provided by the Blue Bird Company, was an opportunity for the University to evaluate the effectiveness of a CNG bus for shuttle operations. Three basic operating comparisons were made: (1) fuel consumption, (2) tire wear, and (3) vehicle performance. The bus was equipped with a data logger, which was downloaded regularly, for trip reports. Tire wear was monitored regularly, and performance tests were conducted at the Natural Gas Vehicle Technology Center. Overall, the data suggest that fuel costs for the CNG bus are comparable to those for University diesel buses. This is a result of the lower fuel price for natural gas. Actual natural gas fuel consumption was higher for the CNG buses than for the diesel buses. Due to weight differences, tire wear was much less on the CNG buses. Finally, after installation of a closed-loop system, the CNG bus out-performed the diesel bus on acceleration, grade climbing ability, and speed.

  6. Orion Bus Industries | Open Energy Information

    Open Energy Info (EERE)

    Bus Industries Jump to: navigation, search Name: Orion Bus Industries Place: Ontario, Canada Information About Partnership with NREL Partnership with NREL Yes Partnership Type...

  7. Bus Rollover Testing and Simulation

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

    Bus Rollover Testing And Simulation Computational Structural Mechanics Collaborator Research Highlights - Florida State University & Florida Department of Transportation Current research conducted at FAMU-FSU College of Engineering pertains to comprehensive crashworthiness and safety assessment of a paratransit bus on a Chevrolet 138" wheelbase. The design process of passenger compartment structure in paratransit buses is not regulated by any of crashworthiness standards. FAMU-FSU

  8. Fuel Cell Bus Takes a Starring Role in the BurbankBus Fleet,...

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

    The city has partnered with Proterra, a Colorado-based bus manufacturer, to bring its first fuel cell bus to the area. The bus design features a battery-dominant plug-in hybrid ...

  9. Kentucky Hybrid Electric School Bus Program | Department of Energy

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

    icon tiarravt062settle2010p.pdf More Documents & Publications Kentucky Hybrid Electric School Bus Program Kentucky Hybrid Electric School Bus Program Plug IN Hybrid Vehicle Bus...

  10. Fuel Cell Bus Workshop | Department of Energy

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

    Presentation at DOE and DOT Joint Fuel Cell Bus Workshop, June 7, 2010 buswksp10papageorgopoulos.pdf (999.18 KB) More Documents & Publications Joint Fuel Cell Bus Workshop Summary ...

  11. Pybus -- A Python Software Bus

    SciTech Connect (OSTI)

    Lavrijsen, Wim T.L.P.

    2004-10-14

    A software bus, just like its hardware equivalent, allows for the discovery, installation, configuration, loading, unloading, and run-time replacement of software components, as well as channeling of inter-component communication. Python, a popular open-source programming language, encourages a modular design on software written in it, but it offers little or no component functionality. However, the language and its interpreter provide sufficient hooks to implement a thin, integral layer of component support. This functionality can be presented to the developer in the form of a module, making it very easy to use. This paper describes a Pythonmodule, PyBus, with which the concept of a ''software bus'' can be realized in Python. It demonstrates, within the context of the ATLAS software framework Athena, how PyBus can be used for the installation and (run-time) configuration of software, not necessarily Python modules, from a Python application in a way that is transparent to the end-user.

  12. Fuel Cell Bus Takes a Starring Role in the BurbankBus Fleet, Fuel Cell

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

    Technologies Program (FCTP) (Fact Sheet) | Department of Energy Takes a Starring Role in the BurbankBus Fleet, Fuel Cell Technologies Program (FCTP) (Fact Sheet) Fuel Cell Bus Takes a Starring Role in the BurbankBus Fleet, Fuel Cell Technologies Program (FCTP) (Fact Sheet) This fact sheet reports on the City of Burbank, California's fuel cell bus demonstration project and the U.S. Department of Energy's (DOE) involvement. Included are specifications for the fuel cell bus and information

  13. Electrical system architecture having high voltage bus

    DOE Patents [OSTI]

    Hoff, Brian Douglas; Akasam, Sivaprasad

    2011-03-22

    An electrical system architecture is disclosed. The architecture has a power source configured to generate a first power, and a first bus configured to receive the first power from the power source. The architecture also has a converter configured to receive the first power from the first bus and convert the first power to a second power, wherein a voltage of the second power is greater than a voltage of the first power, and a second bus configured to receive the second power from the converter. The architecture further has a power storage device configured to receive the second power from the second bus and deliver the second power to the second bus, a propulsion motor configured to receive the second power from the second bus, and an accessory motor configured to receive the second power from the second bus.

  14. PinBus Interface Design

    SciTech Connect (OSTI)

    Hammerstrom, Donald J.; Adgerson, Jewel D.; Sastry, Chellury; Pratt, Richard M.; Pratt, Robert G.

    2009-12-30

    On behalf of the U.S. Department of Energy, PNNL has explored and expanded upon a simple control interface that might have merit for the inexpensive communication of smart grid operational objectives (demand response, for example) to small electric end-use devices and appliances. The approach relies on bi-directional communication via the electrical voltage states of from one to eight shared interconnection pins. The name PinBus has been suggested and adopted for the proposed interface protocol. The protocol is defined through the presentation of state diagrams and the pins’ functional definitions. Both simulations and laboratory demonstrations are being conducted to demonstrate the elegance and power of the suggested approach. PinBus supports a very high degree of interoperability across its interfaces, allowing innumerable pairings of devices and communication protocols and supporting the practice of practically any smart grid use case.

  15. CNG and Diesel Transite Bus Emissions in Review | Department of Energy

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

    CNG and Diesel Transite Bus Emissions in Review CNG and Diesel Transite Bus Emissions in Review 2003 DEER Conference Presentation: California Environmental Protection Agency, Air Resources Board deer_2003_ayala.pdf (164.44 KB) More Documents & Publications ARB's Study of Emissions from Diesel and CNG Heavy-duty Transit Buses Comparison of Clean Diesel Buses to CNG Buses Diesel Health Impacts & Recent Comparisons to Other Fuels

  16. Alternative Fuel School Bus Information Resources

    SciTech Connect (OSTI)

    Not Available

    2004-04-01

    This 4-page Clean Cities fact sheet provides a list of important resources for learning more about alternative fuels in school buses. It includes information regarding Alternative Fuel School Bus Manufacturers, Alternative Fuel HD Engine Manufacturers, Alternative Fuel School Bus Operators, and Key Web Resources for Alternative Fuels.

  17. Interprocessor bus switching system for simultaneous communication in plural bus parallel processing system

    DOE Patents [OSTI]

    Atac, R.; Fischler, M.S.; Husby, D.E.

    1991-01-15

    A bus switching apparatus and method for multiple processor computer systems comprises a plurality of bus switches interconnected by branch buses. Each processor or other module of the system is connected to a spigot of a bus switch. Each bus switch also serves as part of a backplane of a modular crate hardware package. A processor initiates communication with another processor by identifying that other processor. The bus switch to which the initiating processor is connected identifies and secures, if possible, a path to that other processor, either directly or via one or more other bus switches which operate similarly. If a particular desired path through a given bus switch is not available to be used, an alternate path is considered, identified and secured. 11 figures.

  18. Interprocessor bus switching system for simultaneous communication in plural bus parallel processing system

    DOE Patents [OSTI]

    Atac, Robert; Fischler, Mark S.; Husby, Donald E.

    1991-01-01

    A bus switching apparatus and method for multiple processor computer systems comprises a plurality of bus switches interconnected by branch buses. Each processor or other module of the system is connected to a spigot of a bus switch. Each bus switch also serves as part of a backplane of a modular crate hardware package. A processor initiates communication with another processor by identifying that other processor. The bus switch to which the initiating processor is connected identifies and secures, if possible, a path to that other processor, either directly or via one or more other bus switches which operate similarly. If a particular desired path through a given bus switch is not available to be used, an alternate path is considered, identified and secured.

  19. Low Cost, High Temperature, High Ripple Current DC Bus Capacitors...

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

    Low Cost, High Temperature, High Ripple Current DC Bus Capacitors Low Cost, High Temperature, High Ripple Current DC Bus Capacitors 2010 DOE Vehicle Technologies and Hydrogen...

  20. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second...

    Energy Savers [EERE]

    Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and ...

  1. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Third...

    Energy Savers [EERE]

    Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Third Evaluation Report and Appendices Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Third Evaluation Report and ...

  2. Fuel Cell Transit Bus Coordination and Evaluation Plan California...

    Energy Savers [EERE]

    Transit Bus Coordination and Evaluation Plan California Fuel Cell Transit Evaluation Team Fuel Cell Transit Bus Coordination and Evaluation Plan California Fuel Cell Transit ...

  3. Demonstration Project for Fuel Cell Bus Commercialisation in...

    Open Energy Info (EERE)

    Project for Fuel Cell Bus Commercialisation in China Jump to: navigation, search Name: Demonstration Project for Fuel Cell Bus Commercialisation in China Place: Beijing and...

  4. VTA Prototype Fuel Cell Bus Evaluation: Interim Results (Presentation...

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

    VTA Prototype Fuel Cell Bus Evaluation: Interim Results (Presentation) VTA Prototype Fuel Cell Bus Evaluation: Interim Results (Presentation) Details hydrogen fuel cell buses being ...

  5. Hydrogen Fuel Cell Bus Evaluation: Report for the 2001 Hydrogen...

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

    Bus Evaluation: Report for the 2001 Hydrogen Program Review Hydrogen Fuel Cell Bus Evaluation: Report for the 2001 Hydrogen Program Review This paper, presented at the 2001 DOE ...

  6. CTTRANSIT Operates New England's First Fuel Cell Hybrid Bus ...

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

    CTTRANSIT Operates New England's First Fuel Cell Hybrid Bus CTTRANSIT Operates New England's First Fuel Cell Hybrid Bus DOE Hydrogen Program (Fact Sheet) PDF icon 42407.pdf More ...

  7. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary...

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

    Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary Evaluation Results Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary Evaluation Results This ...

  8. A Report on Worldwide Hydrogen Bus Demonstrations, 2002-2007...

    Open Energy Info (EERE)

    on Worldwide Hydrogen Bus Demonstrations, 2002-2007 Jump to: navigation, search Tool Summary LAUNCH TOOL Name: A Report on Worldwide Hydrogen Bus Demonstrations, 2002-2007 Agency...

  9. INL Hybrid Shuttle Buses

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

    INL Hybrid Shuttle Buses Four 28 to 36 passenger hybrid-electric shuttle buses, operated at the Idaho National Laboratory, were equipped with data loggers. The shuttle buses were delivered in 2010 with MaxxForce DT engines configured for 620 ft-lb of torque, and Eaton City-Delivery hybrid-electric systems, each containing a lithium-ion battery pack, electric motor, and Fuller six-speed automated manual transmission. Road speed, engine speed, and fueling data were gathered from the diagnostic

  10. Fuel Cell Bus Takes a Starring Role in the BurbankBus Fleet,...

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

    This fact sheet reports on the City of Burbank, California's fuel cell bus demonstration project and the U.S. Department of Energy's (DOE) involvement. Included are specifications ...

  11. Fuel Cell Bus Takes a Starring Role in the Burbank Bus Fleet

    Fuel Cell Technologies Publication and Product Library (EERE)

    This fact sheet reports on the City of Burbank, California's fuel cell bus demonstration project and the U.S. Department of Energy's involvement.

  12. Fuel Cell Bus Evaluation Results (Presentation) | Department of Energy

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

    Bus Evaluation Results (Presentation) Fuel Cell Bus Evaluation Results (Presentation) Presented at the Transportation Research Board (TRB) 87th Annual Meeting held January 13-17, 2008 in Washington, D.C. 42665.pdf (1.35 MB) More Documents & Publications Technology Validation: Fuel Cell Bus Evaluations Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation Plan for the U.S. Department of Energy and the Federal Transit Administration; Appendix VTA Prototype Fuel Cell Bus Evaluation:

  13. Joint Fuel Cell Bus Workshop Summary Report | Department of Energy

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

    Bus Workshop Summary Report Joint Fuel Cell Bus Workshop Summary Report Presentation at DOE & DOT Joint Fuel Cell Bus Workshop, June 7, 2010 buswksp10_summary.pdf (3.59 MB) More Documents & Publications HybriDrive Propulsion System Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation Plan for the U.S. Department of Energy and the Federal Transit Administration; Appendix Fuel Cell Bus Workshop

  14. Overview of Fuel Cell Electric Bus Development

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

    Overview of Fuel Cell Electric Bus Development Leslie Eudy, National Renewable Energy Laboratory September 12, 2013 2 Why Fuel Cells for Transit Buses? * Reduce transit bus emissions * Improve fuel efficiency * Improve vehicle performance * Consumer Acceptance * Transit industry is excellent test-bed for new technologies o Centrally fueled and maintained o Fixed routes with urban stop-go duty cycle o Professional operators and mechanics o Federal Capital Funding Support o High Visibility &

  15. Nanoparticle shuttle memory

    DOE Patents [OSTI]

    Zettl, Alex Karlwalter

    2012-03-06

    A device for storing data using nanoparticle shuttle memory having a nanotube. The nanotube has a first end and a second end. A first electrode is electrically connected to the first end of the nanotube. A second electrode is electrically connected to the second end of the nanotube. The nanotube has an enclosed nanoparticle shuttle. A switched voltage source is electrically connected to the first electrode and the second electrode, whereby a voltage may be controllably applied across the nanotube. A resistance meter is also connected to the first electrode and the second electrode, whereby the electrical resistance across the nanotube can be determined.

  16. Joint Fuel Cell Bus Workshop Summary Report

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

    Joint Fuel Cell Bus Workshop Summary Report Prepared for: U.S. Department of Energy (DOE/EERE) U.S. Department of Transportation (DOT/FTA) Prepared by: Thomas G. Benjamin Argonne National Laboratory Kristen Nawoj Sentech, Inc. Donna Ho U.S. Department of Energy June 7, 2010 8:00 AM - 12:00 PM Washington Wardman Park Marriott Hotel Washington, DC News Alert distributed May 20, 2010 The U.S. Department of Energy (DOE) and the U.S. Department of Transportation (DOT) will hold a Fuel Cell Bus

  17. NREL Energy DataBus/Nonprofit Partners | Open Energy Information

    Open Energy Info (EERE)

    Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History NREL Energy DataBusNonprofit Partners < NREL Energy DataBus Jump to: navigation, search...

  18. NREL Energy DataBus/Resources | Open Energy Information

    Open Energy Info (EERE)

    Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History NREL Energy DataBusResources < NREL Energy DataBus Jump to: navigation, search View the...

  19. Users Perspective on Advanced Fuel Cell Bus Technology | Department of

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

    Energy Users Perspective on Advanced Fuel Cell Bus Technology Users Perspective on Advanced Fuel Cell Bus Technology Presentation at DOE & DOT Joint Fuel Cell Bus Workshop, Washington, DC, June 7, 2010 buswksp10_eudybouwkamp.pdf (650.24 KB) More Documents & Publications Joint Fuel Cell Bus Workshop Summary Report Fuel Cell Buses Fuel Cell Buses in U.S. Transit Fleets: Current Status 2008

  20. Technology Validation: Fuel Cell Bus Evaluations | Department of Energy

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

    Technology Validation: Fuel Cell Bus Evaluations Technology Validation: Fuel Cell Bus Evaluations Presented at the DOE Hydrogen Program 2007 Annual Merit Review held May 15-18, 2007 in Arlington, Virginia under the Technology Validation - Systems Analysis section. tv_10_eudy.pdf (1.05 MB) More Documents & Publications Fuel Cell Bus Evaluation Results (Presentation) Technology Validation: Fuel Cell Bus Evaluations SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation

  1. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Third Evaluation

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

    Report and Appendices | Department of Energy 1.pdf (875.56 KB) More Documents & Publications SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation Report SunLine Transit Agency Fuel Cell Transit Bus: Fourth Evaluation Report and Appendices Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices

  2. Technology Validation: Fuel Cell Bus Evaluations | Department of Energy

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

    8_eudy.pdf (1.89 MB) More Documents & Publications Technology Validation: Fuel Cell Bus Evaluations Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation Plan for the U.S. Department of Energy and the Federal Transit Administration; Appendix Fuel Cell Bus Evaluation Results (Presentation)

  3. EERE: VTO - Hybrid Bus PNG Image | Department of Energy

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

    Hybrid Bus PNG Image EERE: VTO - Hybrid Bus PNG Image hybrid_bus_17144.png (11.1 MB) More Documents & Publications EERE: VTO - Red Leaf PNG Image EERE: VTO - UPS Truck PNG Image Research Site Locations for Current EERE Postdoctoral Awards

  4. Energy DataBus (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-07-01

    NREL has developed the Energy DataBus, an open-sourced software that collects massive amounts of energy-related data at second-to-second intervals; stores it in a massive, scalable database; and turns it into useful information.

  5. Foothill Transit Battery Electric Bus Demonstration Results

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

    Foothill Transit Battery Electric Bus Demonstration Results Leslie Eudy, Robert Prohaska, Kenneth Kelly, and Matthew Post National Renewable Energy Laboratory Technical Report NREL/TP-5400-65274 January 2016 NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy Operated by the Alliance for Sustainable Energy, LLC This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www.nrel.gov/publications.

  6. Alexandria Hilton Shuttle Schedule | Department of Energy

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

    Schedule.doc More Documents & Publications 2015 APM Workshop - Sheraton Pentagon Shuttle Fact Sheet Shuttle Schedule Phoenix Area Transportation Information for Energy Exchange...

  7. VTA Prototype Fuel Cell Bus Evaluation: Interim Results (Presentation) |

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

    Department of Energy VTA Prototype Fuel Cell Bus Evaluation: Interim Results (Presentation) VTA Prototype Fuel Cell Bus Evaluation: Interim Results (Presentation) Details hydrogen fuel cell buses being evaluated in service at AC Transit. Presented at the APTA Bus and Paratransit Conference in Anaheim, California, April 30 through May 3, 2006. 40012.pdf (412.92 KB) More Documents & Publications Santa Clara Valley Transportation Authority and San Mateo County Transit District -- Fuel Cell

  8. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary

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

    Evaluation Results | Department of Energy Preliminary Evaluation Results Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary Evaluation Results This report provides preliminary results from the evaluation of a protoptye fuel cell transit bus operating at Connecticut Transit in Hartford. Included are descriptions of the planned fuel cell bus demonstration and equipment, early results and agency experience are also provided. 43847.pdf (1.59 MB) More Documents & Publications

  9. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation

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

    Report and Appendices | Department of Energy Second Evaluation Report and Appendices Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices This report describes operations at Connecticut Transit (CTTRANSIT) in Hartford for one prototype fuel cell bus and three new diesel buses operating from the same location. 45670-2.pdf (1.25 MB) More Documents & Publications Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Third

  10. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation

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

    Report and Appendices | Department of Energy Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices This report describes operations at Connecticut Transit (CTTRANSIT) in Hartford for one prototype fuel cell bus and three new diesel buses operating from the same location. 45670-1.pdf (836.62 KB) More Documents & Publications SunLine Transit Agency Fuel Cell Transit

  11. NREL: Hydrogen and Fuel Cells Research - Fuel Cell Electric Bus...

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

    Fuel Cell Electric Bus Reliability Surpasses 2016 and Ultimate Technical Targets Project ... Applicable DOE Technical Target DOE and FTA have established performance, cost, and ...

  12. Global Bus Rapid Transit (BRT) Database | Open Energy Information

    Open Energy Info (EERE)

    URI: cleanenergysolutions.orgcontentglobal-bus-rapid-transit-brt-database Language: English Related Tools GIZ Sourcebook Module 4e: Intelligent Transport Systems...

  13. Alloy Foam Diesel Emissions Control School Bus Implementation...

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

    Alloy Foam Diesel Emissions Control School Bus Implementation Poster presentation from the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, ...

  14. Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation...

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

    Administration; Appendix Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation Plan for the U.S. Department of Energy and the Federal Transit Administration; Appendix ...

  15. Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation...

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

    Administration Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation Plan for the U.S. Department of Energy and the Federal Transit Administration This document ...

  16. SunLine Begins Extended Testing of Hybrid Fuel Cell Bus | Department of

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

    Energy Begins Extended Testing of Hybrid Fuel Cell Bus SunLine Begins Extended Testing of Hybrid Fuel Cell Bus DOE Hydrogen Program (Fact Sheet) 43203.pdf (742.85 KB) More Documents & Publications SunLine Test Drives Hydrogen Bus: Hydrogen Fuel Cell & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects Fact Sheet. SunLine Expands Horizons with Fuel Cell Bus Demo. Hydrogen, Fuel Cells & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects

  17. SunLine Test Drives Hydrogen Bus: Hydrogen Fuel Cell & Infrastructure

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

    Technologies Program, Fuel Cell Bus Demonstration Projects Fact Sheet. | Department of Energy Test Drives Hydrogen Bus: Hydrogen Fuel Cell & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects Fact Sheet. SunLine Test Drives Hydrogen Bus: Hydrogen Fuel Cell & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects Fact Sheet. Fact sheet describes the ThunderPower hydrogen fuel cell bus that was demonstrated at SunLine Transit Agency from

  18. inside shuttle sign wo date

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

    Pentagon City Metro Station Pentagon City Metro Station Fashion Centre Fashion Centre Pentagon Row Pentagon Row Shuttle departs every 30 minutes From Hotel To Hotel 6:15 AM ...

  19. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary Evaluation Results

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2008-10-01

    This report provides preliminary results from a National Renewable Energy Laboratory evaluation of a protoptye fuel cell transit bus operating at Connecticut Transit in Hartford. Included are descriptions of the planned fuel cell bus demonstration and equipment; early results and agency experience are also provided.

  20. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Third Evaluation

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

    Report and Appendices | Department of Energy 2.pdf (1.02 MB) More Documents & Publications Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Third Evaluation Report - Appendices Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary Evaluation Results

  1. Fast Charge Battery Electric Transit Bus In-Use Fleet Evaluation...

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

    Fast Charge Battery Electric Transit Bus In-Use Fleet Evaluation Preprint Robert Prohaska, ... Fast Charge Battery Electric Transit Bus In-Use Fleet Evaluation Robert Prohaska, Kenneth ...

  2. Typical Oak Ridge cemesto houses and city bus | Y-12 National Security

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

    Complex Typical Oak Ridge cemesto ... Typical Oak Ridge cemesto houses and city bus Typical Oak Ridge cemesto houses and city bus

  3. SunLine Expands Horizons with Fuel Cell Bus Demo. Hydrogen, Fuel...

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

    Expands Horizons with Fuel Cell Bus Demo. Hydrogen, Fuel Cells & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects (Fact Sheet). SunLine Expands Horizons ...

  4. Bus bar electrical feedthrough for electrorefiner system

    DOE Patents [OSTI]

    Williamson, Mark; Wiedmeyer, Stanley G; Willit, James L; Barnes, Laurel A; Blaskovitz, Robert J

    2013-12-03

    A bus bar electrical feedthrough for an electrorefiner system may include a retaining plate, electrical isolator, and/or contact block. The retaining plate may include a central opening. The electrical isolator may include a top portion, a base portion, and a slot extending through the top and base portions. The top portion of the electrical isolator may be configured to extend through the central opening of the retaining plate. The contact block may include an upper section, a lower section, and a ridge separating the upper and lower sections. The upper section of the contact block may be configured to extend through the slot of the electrical isolator and the central opening of the retaining plate. Accordingly, relatively high electrical currents may be transferred into a glovebox or hot-cell facility at a relatively low cost and higher amperage capacity without sacrificing atmosphere integrity.

  5. Audit of Bus Service Subsidies at the Idaho National Engineering...

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

    ... training program for U.S. Navy officers and crew as well as the uranium recovery program. ... fleet as well as the level of services, and increasing the price of round-trip bus ticket. ...

  6. NREL: Energy Analysis - The Energy DataBus

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

    the National Renewable Energy Laboratory (NREL) has created the Energy DataBus-a system for organizations to store and process their energy data (or any time-series data)....

  7. Big Green Bus: A Vehicle for Change | Department of Energy

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

    The Big Green Bus rolled into Washington, D.C., and parked outside the Department of Energy offices Monday to showcase its clean energy features. | Photo Courtesy of Joshua Delung ...

  8. CTTRANSIT Operates New England's First Fuel Cell Hybrid Bus | Department of

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

    Energy CTTRANSIT Operates New England's First Fuel Cell Hybrid Bus CTTRANSIT Operates New England's First Fuel Cell Hybrid Bus DOE Hydrogen Program (Fact Sheet) 42407.pdf (930.3 KB) More Documents & Publications Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Third Evaluation Report and Appendices Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary Evaluation Results

  9. SunLine Expands Horizons with Fuel Cell Bus Demo. Hydrogen, Fuel Cells &

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

    Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects (Fact Sheet). | Department of Energy Expands Horizons with Fuel Cell Bus Demo. Hydrogen, Fuel Cells & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects (Fact Sheet). SunLine Expands Horizons with Fuel Cell Bus Demo. Hydrogen, Fuel Cells & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects (Fact Sheet). Fact sheet describes the study being conducted on fuel cell

  10. Hydrogen Fuel Cell Bus Evaluation for California Transit Agencies |

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

    Department of Energy Transportation Projects Ā» Hydrogen Fuel Cell Bus Evaluation for California Transit Agencies Hydrogen Fuel Cell Bus Evaluation for California Transit Agencies In February 2000, the California Air Resources Board approved regulations to reduce emissions from transit buses in California. Because of this ruling, several transit agencies in the state began developing programs to demonstrate zero-emission buses, specifically fuel cell buses. DOE is conducting an evaluation of

  11. Final Report for the H2Fuel Bus

    SciTech Connect (OSTI)

    Jacobs, W.D.

    1998-11-25

    The H2Fuel Bus is the world's first hydrogen-fueled electric hybrid transit bus. It was a project developed through a public/private partnership involving several leading technological and industrial organizations, with primary funding by the Department of Energy (DOE). The primary goals of the project are to gain valuable information on the technical readiness and economic viability of hydrogen fueled buses and to enhance the public awareness and acceptance of emerging hydrogen technologies.

  12. Alloy Foam Diesel Emissions Control School Bus Implementation | Department

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

    of Energy Alloy Foam Diesel Emissions Control School Bus Implementation Alloy Foam Diesel Emissions Control School Bus Implementation Poster presentation from 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). deer07_han.pdf (407.66 KB) More Documents & Publications Diesel Injection Shear-Stress Advanced Nozzle

  13. Redox Shuttle Additives | Argonne National Laboratory

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

    Redox Shuttle Additives Technology available for licensing: A series of novel redox shuttle additives for lithium-ion batteries Seven-technology suite helps reduce battery costs Provides overcharge protection and increased battery safety and reliability PDF icon redox_shuttles

  14. Texas Hydrogen Highway Fuel Cell Hybrid Bus and Fueling Infrastructure Technology Showcase - Final Scientific/Technical Report

    SciTech Connect (OSTI)

    Hitchcock, David

    2012-06-29

    , and regenerative braking for battery charging. It uses a 19.3 kW Ballard PEM fuel cell, will store 12.6 kg of hydrogen at 350 Bar, and includes a 60 kWh battery storage system. The objectives of the project included the following: (a) To advance commercialization of hydrogen-powered transit buses and supporting infrastructure; (b) To provide public outreach and education by showcasing the operation of a 22-foot fuel cell hybrid shuttle bus and Texas first hydrogen fueling infrastructure; and (c) To showcase operation of zero-emissions vehicle for potential transit applications. As mentioned above, the project successfully demonstrated an early vehicle technology, the Ebus plug-in hybrid fuel cell bus, and that success has led to the acquisition of a more advanced vehicle that can take advantage of the same fueling infrastructure. Needed hydrogen station improvements have been identified that will enhance the capabilities of the fueling infrastructure to serve the new bus and to meet the transit agency needs. Over the course of this project, public officials, local government staff, and transit operators were engaged in outreach and education activities that acquainted them with the real world operation of a fuel cell bus and fueling infrastructure. Transit staff members in the Dallas/Ft. Worth region were invited to a workshop in Arlington, Texas at the North Central Texas Council of Governments to participate in a workshop on hydrogen and fuel cells, and to see the fuel cell bus in operation. The bus was trucked to the meeting for this purpose so that participants could see and ride the bus. Austin area transit staff members visited the fueling site in Austin to be briefed on the bus and to participate in a fueling demonstration. This led to further meetings to determine how a fuel cell bus and fueling station could be deployed at Capital Metro Transit. Target urban regions that expressed additional interest during the project in response to the outreach meetings and

  15. American Fuel Cell Bus Project Evaluation. Second Report

    SciTech Connect (OSTI)

    Eudy, Leslie; Post, Matthew

    2015-09-01

    This report presents results of the American Fuel Cell Bus (AFCB) Project, a demonstration of fuel cell electric buses operating in the Coachella Valley area of California. The prototype AFCB was developed as part of the Federal Transit Administration's (FTA's) National Fuel Cell Bus Program. Through the non-profit consortia CALSTART, a team led by SunLine Transit Agency and BAE Systems developed a new fuel cell electric bus for demonstration. SunLine added two more AFCBs to its fleet in 2014 and another in 2015. FTA and the AFCB project team are collaborating with the U.S. Department of Energy (DOE) and DOE's National Renewable Energy Laboratory to evaluate the buses in revenue service. This report summarizes the performance results for the buses through June 2015.

  16. RTD Biodiesel (B20) Transit Bus Evaluation: Interim Review Summary

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

    RTD Biodiesel (B20) Transit Bus Evaluation: Interim Review Summary K. Proc, R. Barnitt, and R.L. McCormick Technical Report NREL/TP-540-38364 August 2005 RTD Biodiesel (B20) Transit Bus Evaluation: Interim Review Summary K. Proc, R. Barnitt, and R.L. McCormick Prepared under Task No. FC05.9400 Technical Report NREL/TP-540-38364 August 2005 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov Operated for the U.S. Department of Energy

  17. Fuel Cell Transit Buses: ThunderPower Bus Evaluation at SunLine...

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

    Buses: ThunderPower Bus Evaluation at SunLine Transit Agency Fuel Cell Transit Buses: ThunderPower Bus Evaluation at SunLine Transit Agency Report details the six-month evaluation...

  18. UNDP-GEF Fuel Cell Bus Programme: Update | Open Energy Information

    Open Energy Info (EERE)

    GEF Fuel Cell Bus Programme: Update Jump to: navigation, search Tool Summary LAUNCH TOOL Name: UNDP-GEF Fuel Cell Bus Programme: Update AgencyCompany Organization: United Nations...

  19. SunLine Test Drives Hydrogen Bus: Hydrogen Fuel Cell & Infrastructure...

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

    Fact sheet describes the ThunderPower hydrogen fuel cell bus that was demonstrated at SunLine Transit Agency from November 2002 to February 2003. The bus was evaluated by DOE's ...

  20. Hydrogen Fuel Cell Bus Evaluation: Report for the 2001 Hydrogen Program

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

    Review | Department of Energy Bus Evaluation: Report for the 2001 Hydrogen Program Review Hydrogen Fuel Cell Bus Evaluation: Report for the 2001 Hydrogen Program Review This paper, presented at the 2001 DOE Hydrogen Program Review, describes the prototype fuel cell bus, fueling infrastructure, and maintenance facility for an early technology adopter. Hydrogen Fuel Cell Bus Evaluation: Report for the 2001 Hydrogen Program Review (681 KB) More Documents & Publications Fuel Cell Transit

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

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

    Energy apep_08_su.pdf (346.73 KB) More Documents & Publications A Segmented Drive Inverter Topology with a Small DC Bus Capacitor A Segmented Drive Inverter Topology with a Small DC Bus Capacitor A Segmented Drive Inverter Topology with a Small DC Bus Capacitor

  2. SunLine Leads the Way in Demonstrating Hydrogen-Fueled Bus Technologies (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-01-01

    This brochure describes SunLine Transit Agency's newest advanced technology fuel cell electric bus. SunLine is collaborating with the U.S. Department of Energy's Fuel Cell Technologies Program to evaluate the bus in revenue service. This bus represents the sixth generation of hydrogen-fueled buses that the agency has operated since 2000.

  3. Development of the bus joint for the ITER Central Solenoid

    SciTech Connect (OSTI)

    Martovetsky, Nicolai N; Irick, David Kim; Kenney, Steven J

    2013-01-01

    The terminations of the Central Solenoid (CS) modules are connected to the bus extensions by joints located outside the CS in the gap between the CS and Torodial Field (TF) assemblies. These joints have very strict space limitations. Low resistance is a common requirement for all ITER joints. In addition, the CS bus joints will experience and must be designed to withstand significant variation in the magnetic field of several tenths of a Tesla per second during initiation of plasma. The joint resistance is specified to be less than 4 nOhm. The joints also have to be soldered in the field and designed with the possibility to be installed and dismantled in order to allow cold testing in the cold test facility. We have developed coaxial joints that meet these requirements and have demonstrated the feasibility to fabricate and assemble them in the vertical configuration. We introduced a coupling cylinder with superconducting strands soldered to the surface of the cable that can be installed in the ITER assembly hall and at the Cold Test Facility. This cylinder serves as a transition area between the CS module and the bus extension. We made two racetrack samples and tested four bus joints in our Joint Test Apparatus. Resistance of the bus joints was measured by a decay method and by a microvoltmeter; the value of the current was measured by the Hall probes. This measurement method was verified in the previous tests. The resistance of the joints varied insignificantly from 1.5 to 2 nOhm. One of the challenges associated with a soldered joint is the inability to use corrosive chemicals that are difficult to clean. This paper describes our development work on cable preparation, chrome removal, compaction, soldering, and final assembly and presents the test results.

  4. Alternative Fuels Data Center: Propane Buses Shuttle Visitors in Maine

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

    Propane Buses Shuttle Visitors in Maine to someone by E-mail Share Alternative Fuels Data Center: Propane Buses Shuttle Visitors in Maine on Facebook Tweet about Alternative Fuels Data Center: Propane Buses Shuttle Visitors in Maine on Twitter Bookmark Alternative Fuels Data Center: Propane Buses Shuttle Visitors in Maine on Google Bookmark Alternative Fuels Data Center: Propane Buses Shuttle Visitors in Maine on Delicious Rank Alternative Fuels Data Center: Propane Buses Shuttle Visitors in

  5. NJ Compressed Natural Gas Refuse Trucks, Shuttle Buses and Infrastruct...

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

    NJ Compressed Natural Gas Refuse Trucks, Shuttle Buses and Infrastructure NJ Compressed Natural Gas Refuse Trucks, Shuttle Buses and Infrastructure 2012 DOE Hydrogen and Fuel Cells ...

  6. Fuel Cell Transit Buses: ThunderPower Bus Evaluation at SunLine Transit

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

    Agency | Department of Energy Buses: ThunderPower Bus Evaluation at SunLine Transit Agency Fuel Cell Transit Buses: ThunderPower Bus Evaluation at SunLine Transit Agency Report details the six-month evaluation of the ThunderPower hydrogen fuel cell bus demonstrated at SunLine Transit Agency. sunline_report.pdf (1.27 MB) More Documents & Publications SunLine Test Drives Hydrogen Bus: Hydrogen Fuel Cell & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Projects Fact

  7. SunLine Transit Agency Advanced Technology Fuel Cell Bus Evaluation: First Results Report

    SciTech Connect (OSTI)

    Eudy, L.; Chandler, K.

    2011-03-01

    This report describes operations at SunLine Transit Agency for their newest prototype fuel cell bus and five compressed natural gas (CNG) buses. In May 2010, SunLine began operating its sixth-generation hydrogen fueled bus, an Advanced Technology (AT) fuel cell bus that incorporates the latest design improvements to reduce weight and increase reliability and performance. The agency is collaborating with the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) to evaluate the bus in revenue service. This report provides the early data results and implementation experience of the AT fuel cell bus since it was placed in service.

  8. Chemical Shuttle Additives in Lithium Ion Batteries

    SciTech Connect (OSTI)

    Patterson, Mary

    2013-03-31

    The goals of this program were to discover and implement a redox shuttle that is compatible with large format lithium ion cells utilizing LiNi{sub 1/3}Mn{sub 1/3}Co{sub 1/3}O{sub 2} (NMC) cathode material and to understand the mechanism of redox shuttle action. Many redox shuttles, both commercially available and experimental, were tested and much fundamental information regarding the mechanism of redox shuttle action was discovered. In particular, studies surrounding the mechanism of the reduction of the oxidized redox shuttle at the carbon anode surface were particularly revealing. The initial redox shuttle candidate, namely 2-(pentafluorophenyl)-tetrafluoro-1,3,2-benzodioxaborole (BDB) supplied by Argonne National Laboratory (ANL, Lemont, Illinois), did not effectively protect cells containing NMC cathodes from overcharge. The ANL-RS2 redox shuttle molecule, namely 1,4-bis(2-methoxyethoxy)-2,5-di-tert-butyl-benzene, which is a derivative of the commercially successful redox shuttle 2,5-di-tert-butyl-1,4-dimethoxybenzene (DDB, 3M, St. Paul, Minnesota), is an effective redox shuttle for cells employing LiFePO{sub 4} (LFP) cathode material. The main advantage of ANL-RS2 over DDB is its larger solubility in electrolyte; however, ANL-RS2 is not as stable as DDB. This shuttle also may be effectively used to rebalance cells in strings that utilize LFP cathodes. The shuttle is compatible with both LTO and graphite anode materials although the cell with graphite degrades faster than the cell with LTO, possibly because of a reaction with the SEI layer. The degradation products of redox shuttle ANL-RS2 were positively identified. Commercially available redox shuttles Li{sub 2}B{sub 12}F{sub 12} (Air Products, Allentown, Pennsylvania and Showa Denko, Japan) and DDB were evaluated and were found to be stable and effective redox shuttles at low C-rates. The Li{sub 2}B{sub 12}F{sub 12} is suitable for lithium ion cells utilizing a high voltage cathode (potential that is higher

  9. Discharging a DC bus capacitor of an electrical converter system

    DOE Patents [OSTI]

    Kajouke, Lateef A; Perisic, Milun; Ransom, Ray M

    2014-10-14

    A system and method of discharging a bus capacitor of a bidirectional matrix converter of a vehicle are presented here. The method begins by electrically shorting the AC interface of the converter after an AC energy source is disconnected from the AC interface. The method continues by arranging a plurality of switching elements of a second energy conversion module into a discharge configuration to establish an electrical current path from a first terminal of an isolation module, through an inductive element, and to a second terminal of the isolation module. The method also modulates a plurality of switching elements of a first energy conversion module, while maintaining the discharge configuration of the second energy conversion module, to at least partially discharge a DC bus capacitor.

  10. Users Perspective on Advanced Fuel Cell Bus Technology

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

    Users Perspective on Advanced Fuel Cell Bus Technology Lesl lie Eud dy - NREL Nico Bouwkamp - CaFCP DOE/FTA FCB Workshop DOE/FTA FCB Workshop June 7, 2010 - Transit Agencies FCB Demonstrations Transit Agencies FCB Demonstrations Reasons for participation Reasons for participation - Government regulations to reduce emissions - Public pressure Public pressure - Agency desire to be 'green' - Funding opportunity Funding opportunity - Learn about the newest technology 2 - Challenges: Performance

  11. BC Transit Fuel Cell Bus Project: Evaluation Results Report

    SciTech Connect (OSTI)

    Eudy, L.; Post, M.

    2014-02-01

    This report evaluates a fuel cell electric bus demonstration led by British Columbia Transit (BC Transit) in Whistler, Canada. BC Transit is collaborating with the California Air Resources Board and the U.S. Department of Energy's National Renewable Energy Laboratory to evaluate the buses in revenue service. This evaluation report covers two years of revenue service data on the buses from April 2011 through March 2013.

  12. Safety evaluation of a hydrogen fueled transit bus

    SciTech Connect (OSTI)

    Coutts, D.A.; Thomas, J.K.; Hovis, G.L.; Wu, T.T.

    1997-12-31

    Hydrogen fueled vehicle demonstration projects must satisfy management and regulator safety expectations. This is often accomplished using hazard and safety analyses. Such an analysis has been completed to evaluate the safety of the H2Fuel bus to be operated in Augusta, Georgia. The evaluation methods and criteria used reflect the Department of Energy`s graded approach for qualifying and documenting nuclear and chemical facility safety. The work focused on the storage and distribution of hydrogen as the bus motor fuel with emphases on the technical and operational aspects of using metal hydride beds to store hydrogen. The safety evaluation demonstrated that the operation of the H2Fuel bus represents a moderate risk. This is the same risk level determined for operation of conventionally powered transit buses in the United States. By the same criteria, private passenger automobile travel in the United States is considered a high risk. The evaluation also identified several design and operational modifications that resulted in improved safety, operability, and reliability. The hazard assessment methodology used in this project has widespread applicability to other innovative operations and systems, and the techniques can serve as a template for other similar projects.

  13. SunLine Transit Agency Advanced Technology Fuel Cell Bus Evaluation: Third Results Reports

    SciTech Connect (OSTI)

    Eudy, L.; Chandler, K.

    2012-05-01

    This report describes operations at SunLine Transit Agency for their newest prototype fuel cell bus and five compressed natural gas (CNG) buses. In May 2010, SunLine began operating its sixth-generation hydrogen fueled bus, an Advanced Technology (AT) fuel cell bus that incorporates the latest design improvements to reduce weight and increase reliability and performance. The agency is collaborating with the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) to evaluate the bus in revenue service. NREL has previously published two reports documenting the operation of the fuel cell bus in service. This report provides a summary of the results with a focus on the bus operation from July 2011 through January 2012.

  14. SunLine Transit Agency Advanced Technology Fuel Cell Bus Evaluation: Fourth Results Report

    SciTech Connect (OSTI)

    Eudy, L.; Chandler, K.

    2013-01-01

    SunLine Transit Agency, which provides public transit services to the Coachella Valley area of California, has demonstrated hydrogen and fuel cell bus technologies for more than 10 years. In May 2010, SunLine began demonstrating the advanced technology (AT) fuel cell bus with a hybrid electric propulsion system, fuel cell power system, and lithium-based hybrid batteries. This report describes operations at SunLine for the AT fuel cell bus and five compressed natural gas buses. The U.S. Department of Energy's National Renewable Energy Laboratory (NREL) is working with SunLine to evaluate the bus in real-world service to document the results and help determine the progress toward technology readiness. NREL has previously published three reports documenting the operation of the fuel cell bus in service. This report provides a summary of the results with a focus on the bus operation from February 2012 through November 2012.

  15. Fuel Cell Transit Bus Coordination and Evaluation Plan California Fuel Cell

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

    Transit Evaluation Team | Department of Energy Bus Coordination and Evaluation Plan California Fuel Cell Transit Evaluation Team Fuel Cell Transit Bus Coordination and Evaluation Plan California Fuel Cell Transit Evaluation Team The purpose of this document is to describe the coordination and evaluation of the demonstration of seven full-size (40-foot) fuel cell transit buses. The descriptions in this document include the partners, fuel cell bus demonstration sites, objectives...

  16. SunLine Tests HHICE Bus in Desert Climate | Department of Energy

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

    Tests HHICE Bus in Desert Climate SunLine Tests HHICE Bus in Desert Climate Fuel Cell Bus Demonstration Projects (Fact Sheet). 40107.pdf (395.03 KB) More Documents & Publications SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report -- Appendices SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report and Appendices

  17. Fuel Cell Hybrid Bus Lands at Hickam AFB: Hydrogen Fuel Cell...

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

    Hybrid Bus Lands at Hickam AFB: Hydrogen Fuel Cell & Infrastructure Technologies Program, ... Power R&D Needs (Presentation) Vehicle Technologies Office Merit Review 2016: ...

  18. SunLine Transit Agency Fuel Cell Transit Bus: Fourth Evaluation...

    Energy Savers [EERE]

    Fourth Evaluation Report and Appendices SunLine Transit Agency Fuel Cell Transit Bus: Fourth Evaluation Report and Appendices This report describes operations at SunLine Transit ...

  19. BC Transit Fuel Cell Bus Project Evaluation Results: Second Report

    SciTech Connect (OSTI)

    Eudy, L.; Post, M.

    2014-09-01

    Second report evaluating a fuel cell electric bus (FCEB) demonstration led by British Columbia Transit (BC Transit) in Whistler, Canada. BC Transit is collaborating with the California Air Resources Board and the U.S. Department of Energy's National Renewable Energy Laboratory to evaluate the buses in revenue service. NREL published its first report on the demonstration in February 2014. This report is an update to the previous report; it covers 3 full years of revenue service data on the buses from April 2011 through March 2014 and focuses on the final experiences and lessons learned.

  20. American Fuel Cell Bus Project Evaluation: Second Report

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

    American Fuel Cell Bus Project Evaluation: Second Report Leslie Eudy and Matthew Post National Renewable Energy Laboratory Technical Report NREL/TP-5400-64344 September 2015 NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy Operated by the Alliance for Sustainable Energy, LLC This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www.nrel.gov/publications. Contract No. DE-AC36-08GO28308 National

  1. BC Transit Fuel Cell Bus Project Evaluation Results: Second Report

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

    BC Transit Fuel Cell Bus Project Evaluation Results: Second Report L. Eudy and M. Post National Renewable Energy Laboratory Technical Report NREL/TP-5400-62317 September 2014 NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy Operated by the Alliance for Sustainable Energy, LLC This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www.nrel.gov/publications. Contract No. DE-AC36-08GO28308 National

  2. Fuel Cell Hybrid Bus Lands at Hickam AFB: Hydrogen Fuel Cell & Infrastructure Technologies Program, Fuel Cell Bus Demonstration Project (Fact Sheet)

    Broader source: Energy.gov [DOE]

    Fact sheet describes the initiation of NRELā€™s evaluation of a fuel cell hybrid electric bus at Hickam Air Force Base in Honolulu, Hawaii as part of DOEā€™s Hydrogen, Fuel Cells & Infrastructure Technologies Program.

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

    SciTech Connect (OSTI)

    Barnitt, R.; Gonder, J.

    2011-04-01

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

  4. SunLine Transit Agency Advanced Technology Fuel Cell Bus Evaluation: Second Results Report and Appendices

    SciTech Connect (OSTI)

    Eudy, L.; Chandler, K.

    2011-10-01

    This report describes operations at SunLine Transit Agency for their newest prototype fuel cell bus and five compressed natural gas (CNG) buses. In May 2010, SunLine began operating its sixth-generation hydrogen fueled bus, an Advanced Technology (AT) fuel cell bus that incorporates the latest design improvements to reduce weight and increase reliability and performance. The agency is collaborating with the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) to evaluate the bus in revenue service. This is the second results report for the AT fuel cell bus since it was placed in service, and it focuses on the newest data analysis and lessons learned since the previous report. The appendices, referenced in the main report, provide the full background for the evaluation. They will be updated as new information is collected but will contain the original background material from the first report.

  5. Comparison of Parallel and Series Hybrid Powertrains for Transit Bus Application

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

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

    2016-01-01

    The fuel economy and emissions of 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 indicated that series hybrid buses have the greatest overall advantage in fuel economy. The series and parallel hybrid buses were predicted to produce similar carbon monoxide and hydrocarbon tailpipe emissions but were also predicted to have reduced tailpipe emissions of nitrogen oxides compared with the conventional bus in higher speed cycles. For the New York bus cycle, which has themoreĀ Ā» lowest average speed among the cycles evaluated, the series bus tailpipe emissions were somewhat higher than they were for the conventional bus; the parallel hybrid bus had significantly lower tailpipe emissions. All three bus power trains were found to require periodic active diesel particulate filter regeneration to maintain control of particulate matter. Plug-in operation of series hybrid buses appears to offer significant fuel economy benefits and is easily employed because of the relatively large battery capacity that is typical of the series hybrid configuration.Ā«Ā less

  6. Comparison of Parallel and Series Hybrid Power Trains for Transit Bus Applications

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

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

    2016-08-01

    The fuel economy and emissions of conventional and hybrid buses equipped with emissions after treatment 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 indicated that series hybrid buses have the greatest overall advantage in fuel economy. The series and parallel hybrid buses were predicted to produce similar carbon monoxide and hydrocarbon tailpipe emissions but were also predicted to have reduced tailpipe emissions of nitrogen oxides compared with the conventional bus in higher speed cycles. For the New York bus cycle, which hasmoreĀ Ā» the lowest average speed among the cycles evaluated, the series bus tailpipe emissions were somewhat higher than they were for the conventional bus; the parallel hybrid bus had significantly lower tailpipe emissions. All three bus power trains were found to require periodic active diesel particulate filter regeneration to maintain control of particulate matter. Finally, plug-in operation of series hybrid buses appears to offer significant fuel economy benefits and is easily employed because of the relatively large battery capacity that is typical of the series hybrid configuration.Ā«Ā less

  7. 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.

  8. Secretary Bodman Tours LNG Powered City Bus in Seoul | Department of Energy

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

    LNG Powered City Bus in Seoul Secretary Bodman Tours LNG Powered City Bus in Seoul December 13, 2006 - 9:46am Addthis Joins Secretary Gutierrez to Highlight Cooperation in Developing and Deploying Clean Energy Technologies SEOUL, KOREA - U.S. Secretary of Energy Samuel W. Bodman today joined U.S. Commerce Secretary Carlos Gutierrez in Seoul, Korea to view a city bus and industrial equipment powered by liquefied natural gas (LNG) built with U.S. technology. Secretaries Bodman and Gutierrez and

  9. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Third Evaluation Report and Appendices

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2010-01-01

    This report describes operations at Connecticut Transit (CTTRANSIT) in Hartford for one prototype fuel cell bus and three new diesel buses operating from the same location. The prototype fuel cell bus was manufactured by Van Hool and ISE Corp. and features an electric hybrid drive system with a UTC Power PureMotion 120 Fuel Cell Power System and ZEBRA batteries for energy storage. The fuel cell bus started operation in April 2007, and evaluation results through October 2009 are provided in this report.

  10. DOE - Office of Legacy Management -- American Machine and Foundry Co - Bus

    Office of Legacy Management (LM)

    Terminal - NY 59 Bus Terminal - NY 59 FUSRAP Considered Sites Site: American Machine and Foundry Co - Bus Terminal (NY.59) Eliminated from further consideration under FUSRAP Designated Name: Not Designated Alternate Name: AMF, Bus Terminal Office NY.59-1 NY.59-3 Location: New York , New York NY.59-1 Evaluation Year: 1990 NY.59-1 Site Operations: Design, procure, and ship material supporting development of means for handling extruded uranium metal rod. NY.59-1 Site Disposition: Eliminated -

  11. Alternative Fuels Data Center: Hybrid Electric Shuttle Buses...

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

    ... station Sacramento Adds Regional Heavy-Duty LNG Fueling Station March 21, 2015 Photo of a street sweeper New Hampshire Fleet Revs up With Natural Gas March 7, 2015 Photo of a bus. ...

  12. Vehicle Technologies Office Merit Review 2015: Advanced Bus and Truck Radial Materials for Fuel Efficiency

    Broader source: Energy.gov [DOE]

    Presentation given by PPG at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about advanced bus and truck radial materials...

  13. SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation...

    Energy Savers [EERE]

    Fifth Evaluation Report SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation Report This report describes operations at SunLine Transit Agency for a prototype fuel cell ...

  14. Vehicle Technologies Office Merit Review 2014: High Performance DC Bus Film Capacitor

    Broader source: Energy.gov [DOE]

    Presentation given by GE Global Research at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about high performance DC bus...

  15. Vehicle Technologies Office Merit Review 2015: High Performance DC Bus Film Capacitor

    Broader source: Energy.gov [DOE]

    Presentation given by GE Global Research at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about high performance DC bus...

  16. Pardon me, boy, is that the Chattanooga...bus? | Y-12 National...

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

    and Rep. Chuck Fleischmann (R-Tenn.) streamed out of a charter bus at the New Hope Center on Oct. 14, she continued to see the same thing on the faces of her colleagues...

  17. Advanced Methods Approach to Hybrid Powertrain Systems Optimization of a Transit Bus Application

    Broader source: Energy.gov [DOE]

    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

  18. TCAT to Receive Ithaca's First 'Cutting-Edge' Fuel Cell Bus ...

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

    TCAT to Receive Ithaca's First 'Cutting-Edge' Fuel Cell Bus September 6th, 2013 By Kerry Close Within two years, TCAT riders may be able to make their commute on a "clean,...

  19. Emissions Effects of Using B20 in the Current Transit Bus Fleet...

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

    Emissions Effects of Using B20 in the Current Transit Bus Fleet Transit buses using diesel and biodiesel blends were tested for fuel consumption and emissions on the UDDS, OCTA, ...

  20. NREL: Hydrogen and Fuel Cells Research - Hydrogen Fuel Cell Bus Evaluations

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

    Hydrogen Fuel Cell Bus Evaluations Transit buses are one of the best early transportation applications for fuel cell technology. Buses operate in congested areas where pollution is already a problem. These buses are centrally located and fueled, highly visible, and subsidized by government. By evaluating the experiences of these early adopters, NREL can determine the status of bus fuel cell systems and establish lessons learned to aid other fleets in implementing the next generation of these

  1. Retrofit Program of a Euro 1 andn EUro 2 Urban Bus Fleet in La Rochelle:

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

    Status after One Year Experience | Department of Energy Program of a Euro 1 andn EUro 2 Urban Bus Fleet in La Rochelle: Status after One Year Experience Retrofit Program of a Euro 1 andn EUro 2 Urban Bus Fleet in La Rochelle: Status after One Year Experience 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Rhodia Electronics and Catalysis 2004_deer_rocher.pdf (151.33 KB) More Documents & Publications Improvement and Simplification of Diesel Particulate Filter System

  2. Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation Plan for

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

    the U.S. Department of Energy and the Federal Transit Administration | Department of Energy Administration Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation Plan for the U.S. Department of Energy and the Federal Transit Administration This document describes the hydrogen transit bus evaluations performed by the National Renewable Energy Laboratory (NREL) and funded by the U.S. Department of Energy (DOE) and the U.S. Department of Transportation's Federal Transit Administration

  3. Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation Plan for

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

    the U.S. Department of Energy and the Federal Transit Administration; Appendix | Department of Energy Administration; Appendix Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation Plan for the U.S. Department of Energy and the Federal Transit Administration; Appendix This document describes the hydrogen transit bus evaluations performed by the National Renewable Energy Laboratory (NREL) and funded by the U.S. Department of Energy (DOE) and the U.S. Department of Transportation's

  4. Data collection plan for Phase 2 Alternative Fuels Bus Data Collection Program. Final report

    SciTech Connect (OSTI)

    Krenelka, T.

    1993-07-01

    This document constitutes the plan for collecting and reporting data associated with a special set of transit bus demonstrations to be conducted under the Urban Bus Program of the Alternative Motor Fuels Act (AMFA) of 1988. This program, called the Phase 2 Bus Data Collection Program, serves as an adjunct to the Phase I Bus Data Collection Program, collecting detailed data on just a few buses to augment and enhance the Phase 1 data in fulfilling the urban bus requirements of AMFA. Demonstrations will be conducted at a few transit system locations throughout the US and will use alternative fuels and associated technologies to reduce undesirable transit bus exhaust emissions. Several organizations will be involved in the data collection; NREL will manage the program, analyze and store vehicle data, and make these data available through the Alternative Fuels Data Center. This information will enable transit agencies, equipment manufacturers, fuel suppliers, and government policy makers to make informed decisions about buying and using alternative fuels.

  5. NJ Compressed Natural Gas Refuse Trucks, Shuttle Buses and Infrastruct...

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

    icon arravt051tifeinberg2011p.pdf More Documents & Publications NJ Compressed Natural Gas Refuse Trucks, Shuttle Buses and Infrastructure NJ Compressed Natural Gas Refuse ...

  6. Novel Redox Shuttles for Overcharge Protection of Lithium-Ion...

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

    Protection of Lithium-Ion Batteries Technology available for licensing: Electrolytes containing novel redox shuttles (electron transporters) for lithium-ion batteries ...

  7. Alternative Fuels Data Center: Airport Shuttles Run on Propane

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

    " Don Duvernay, Airport Shuttle General Manager, Louis Armstrong New Orleans International The Louis Armstrong New Orleans International Airport in the Big Easy uses 27 ...

  8. Redox shuttles for lithium ion batteries

    DOE Patents [OSTI]

    Weng, Wei; Zhang, Zhengcheng; Amine, Khalil

    2014-11-04

    Compounds may have general Formula IVA or IVB. ##STR00001## where, R.sup.8, R.sup.9, R.sup.10, and R.sup.11 are each independently selected from H, F, Cl, Br, CN, NO.sub.2, alkyl, haloalkyl, and alkoxy groups; X and Y are each independently O, S, N, or P; and Z' is a linkage between X and Y. Such compounds may be used as redox shuttles in electrolytes for use in electrochemical cells, batteries and electronic devices.

  9. Redox Shuttle Additives - Energy Innovation Portal

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

    Energy Storage Energy Storage Advanced Materials Advanced Materials Find More Like This Return to Search Redox Shuttle Additives Argonne National Laboratory Contact ANL About This Technology <p align="LEFT"> <i><font color="#808285" size="1"><font color="#808285" size="1">Charge Transfer Mechanism for Li-ion Battery Overcharge Protection &mdash; The boron and fluorine additive is in the electrolyte. When the battery is

  10. A new vehicle data bus architecture and IVIS evaluation platform for ITS modulus

    SciTech Connect (OSTI)

    Spelt, P.F.; Kirson, A.M.; Scott, S.

    1998-12-31

    An increasing number of ITS-related after-market systems present a set of in-vehicle installation and use problems relatively unique in the history of automobile use. Many automobile manufacturers would like to offer these new state of the art devices to customers, but are hampered by the current design cycle of new cars. While auto manufacturers are indeed using multiplex buses (the automotive equivalent of a computer local area network), problems remain because manufacturers are not converging on a single bus standard. This paper presents a new dual-bus architecture to address these problems, with an In-Vehicle Information System (IVIS) research platform on which the principles embodied in the ITS Data Bus architecture can be evaluated. The dual-bus architecture has been embodied in a proposed SAE standard, with a ratification vote in December, 1996. The architecture and a reference model for the interfaces and protocols of the new bus are presented and described. The goals of the ITS Data Bus are to be inexpensive and easy to install, and to provide for safe and secure functioning. These high-level goals are embodied in the proposed standard. The IVIS Development Platform comprises a number of personal computers linked via ethernet LAN, with a high-end PC serving as the IVIS computer. In this LAN, actual devices can be inserted in place of the original PC which emulated them. This platform will serve as the development and test bed for an ITS Data Bus Conformity Test, the SAE standard for which has also been developed.

  11. The ACP (Advanced Computer Program) Branch bus and real-time applications of the ACP multiprocessor system

    SciTech Connect (OSTI)

    Hance, R.; Areti, H.; Atac, R.; Biel, J.; Cook, A.; Fischler, M.; Gaines, I.; Husby, D.; Nash, T.; Zmuda, T.

    1987-05-08

    The ACP Branchbus, a high speed differential bus for data movement in multiprocessing and data acquisition environments, is described. This bus was designed as the central bus in the ACP multiprocessing system. In its full implementation with 16 branches and a bus switch, it will handle data rates of 160 MByte/sec and allow reliable data transmission over inter rack distances. We also summarize applications of the ACP system in experimental data acquisition, triggering and monitoring, with special attention paid to FASTBUS environments.

  12. Project Profile: Carbon Dioxide Shuttling Thermochemical Storage Using

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

    Strontium Carbonate | Department of Energy Project Profile: Carbon Dioxide Shuttling Thermochemical Storage Using Strontium Carbonate Project Profile: Carbon Dioxide Shuttling Thermochemical Storage Using Strontium Carbonate University of Florida Logo -- This project is inactive -- The University of Florida (UF), through the Concentrating Solar Power: Efficiently Leveraging Equilibrium Mechanisms for Engineering New Thermochemical Storage (CSP: ELEMENTS) funding program, is working on making

  13. Increasing throughput of multiplexed electrical bus in pipe-lined architecture

    DOE Patents [OSTI]

    Asaad, Sameh; Brezzo, Bernard V; Kapur, Mohit

    2014-05-27

    Techniques are disclosed for increasing the throughput of a multiplexed electrical bus by exploiting available pipeline stages of a computer or other system. For example, a method for increasing a throughput of an electrical bus that connects at least two devices in a system comprises introducing at least one signal hold stage in a signal-receiving one of the two devices, such that a maximum frequency at which the two devices are operated is not limited by a number of cycles of an operating frequency of the electrical bus needed for a signal to propagate from a signal-transmitting one of the two devices to the signal-receiving one of the two devices. Preferably, the signal hold stage introduced in the signal-receiving one of the two devices is a pipeline stage re-allocated from the signal-transmitting one of the two devices.

  14. SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation Report |

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

    Department of Energy Fifth Evaluation Report SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation Report This report describes operations at SunLine Transit Agency for a prototype fuel cell bus and five compressed natural gas (CNG) buses. This is the fifth evaluation report for this site, and it describes results and experiences from October 2008 through June 2009. These results are an addition to those provided in the previous four evaluation reports. 46346-1.pdf (854.72 KB) More

  15. SunLine Transit Agency Fuel Cell Transit Bus: Fourth Evaluation Report (Report and Appendices)

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2009-01-01

    This report describes operations at SunLine Transit Agency for a prototype fuel cell bus and five new compressed natural gas (CNG) buses. This is the fourth evaluation report for this site, and it describes results and experiences from April 2008 through October 2008. These results are an addition to those provided in the previous three evaluation reports.

  16. SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation Report (Report and Appendices)

    SciTech Connect (OSTI)

    Eudy, L.; Chandler, K.

    2009-08-01

    This report describes operations at SunLine Transit Agency for a prototype fuel cell bus and five compressed natural gas (CNG) buses. This is the fifth evaluation report for this site, and it describes results and experiences from October 2008 through June 2009. These results are an addition to those provided in the previous four evaluation reports.

  17. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2009-05-01

    This report describes operations at Connecticut Transit (CTTRANSIT) in Hartford for one prototype fuel cell bus and three new diesel buses operating from the same location. The evaluation period in this report (January 2008 through February 2009) has been chosen to coincide with a UTC Power propulsion system changeout that occurred on January 15, 2008.

  18. Bus.py: A GridLAB-D Communication Interface for Smart Distribution Grid Simulations

    SciTech Connect (OSTI)

    Hansen, Timothy M.; Palmintier, Bryan; Suryanarayanan, Siddharth; Maciejewski, Anthony A.; Siegel, Howard Jay

    2015-07-03

    As more Smart Grid technologies (e.g., distributed photovoltaic, spatially distributed electric vehicle charging) are integrated into distribution grids, static distribution simulations are no longer sufficient for performing modeling and analysis. GridLAB-D is an agent-based distribution system simulation environment that allows fine-grained end-user models, including geospatial and network topology detail. A problem exists in that, without outside intervention, once the GridLAB-D simulation begins execution, it will run to completion without allowing the real-time interaction of Smart Grid controls, such as home energy management systems and aggregator control. We address this lack of runtime interaction by designing a flexible communication interface, Bus.py (pronounced bus-dot-pie), that uses Python to pass messages between one or more GridLAB-D instances and a Smart Grid simulator. This work describes the design and implementation of Bus.py, discusses its usefulness in terms of some Smart Grid scenarios, and provides an example of an aggregator-based residential demand response system interacting with GridLAB-D through Bus.py. The small scale example demonstrates the validity of the interface and shows that an aggregator using said interface is able to control residential loads in GridLAB-D during runtime to cause a reduction in the peak load on the distribution system in (a) peak reduction and (b) time-of-use pricing cases.

  19. High voltage bus and auxiliary heater control system for an electric or hybrid vehicle

    DOE Patents [OSTI]

    Murty, Balarama Vempaty

    2000-01-01

    A control system for an electric or hybrid electric vehicle includes a vehicle system controller and a control circuit having an electric immersion heater. The heater is electrically connected to the vehicle's high voltage bus and is thermally coupled to a coolant loop containing a heater core for the vehicle's climate control system. The system controller responds to cabin heat requests from the climate control system by generating a pulse width modulated signal that is used by the control circuit to operate the heater at a duty cycle appropriate for the amount of cabin heating requested. The control system also uses the heater to dissipate excess energy produced by an auxiliary power unit and to provide electric braking when regenerative braking is not desirable and manual braking is not necessary. The control system further utilizes the heater to provide a safe discharge of a bank of energy storage capacitors following disconnection of the battery or one of the high voltage connectors used to transmit high voltage operating power to the various vehicle systems. The control circuit includes a high voltage clamping circuit that monitors the voltage on the bus and operates the heater to clamp down the bus voltage when it exceeds a pre-selected maximum voltage. The control system can also be used to phase in operation of the heater when the bus voltage exceeds a lower threshold voltage and can be used to phase out the auxiliary power unit charging and regenerative braking when the battery becomes fully charged.

  20. Orbital disc insulator for SF.sub.6 gas-insulated bus

    DOE Patents [OSTI]

    Bacvarov, Dosio C.; Gomarac, Nicholas G.

    1977-01-01

    An insulator for supporting a high voltage conductor within a gas-filled grounded housing consists of radially spaced insulation rings fitted to the exterior of the bus and the interior of the grounded housing respectively, and the spaced rings are connected by trefoil type rings which are integrally formed with the spaced insulation rings.

  1. SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation Report-- Appendices

    Broader source: Energy.gov [DOE]

    This report describes operations at SunLine Transit Agency for a prototype fuel cell bus and five compressed natural gas (CNG) buses. This is the fifth evaluation report for this site, and it describes results and experiences from October 2008 through June 2009. These results are an addition to those provided in the previous four evaluation reports.

  2. SunLine Transit Agency Fuel Cell Transit Bus: Fourth Evaluation Report and

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

    Appendices | Department of Energy 44646-2.pdf (1.51 MB) More Documents & Publications SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation Report -- Appendices SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report -- Appendices

  3. FAQs | Department of Energy

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

    FAQs FAQs Topics: Shuttle Bus Conferencing Passport and Visa Photographs DOE Photography Collection (Energy Technology Visuals Collection-ETVC) Parking and Garage Travel Document Imaging Courier Services Carpeting Moving Shuttle Bus (Go to Shuttle Bus page) 1. What are the requirements to ride the DOE shuttle bus? All riders need a DOE badge or a shuttle bus pass, which may be obtained from Forrestal or Germantown buildings for non badge personnel on official business. 2. Does the shuttle bus go

  4. FAQs | U.S. DOE Office of Science (SC)

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

    FAQs FAQs Topics: Shuttle Bus Conferencing Passport and Visa Photographs DOE Photography Collection (Energy Technology Visuals Collection-ETVC) Parking and Garage Travel Document Imaging Courier Services Carpeting Moving Shuttle Bus (Go to Shuttle Bus page) 1. What are the requirements to ride the DOE shuttle bus? All riders need a DOE badge or a shuttle bus pass, which may be obtained from Forrestal or Germantown buildings for non badge personnel on official business. 2. Does the shuttle bus go

  5. Multilevel-Dc-Bus Inverter For Providing Sinusoidal And Pwm Electrical Machine Voltages

    DOE Patents [OSTI]

    Su, Gui-Jia [Knoxville, TN

    2005-11-29

    A circuit for controlling an ac machine comprises a full bridge network of commutation switches which are connected to supply current for a corresponding voltage phase to the stator windings, a plurality of diodes, each in parallel connection to a respective one of the commutation switches, a plurality of dc source connections providing a multi-level dc bus for the full bridge network of commutation switches to produce sinusoidal voltages or PWM signals, and a controller connected for control of said dc source connections and said full bridge network of commutation switches to output substantially sinusoidal voltages to the stator windings. With the invention, the number of semiconductor switches is reduced to m+3 for a multi-level dc bus having m levels. A method of machine control is also disclosed.

  6. National Fuel Cell Bus Program: Accelerated Testing Evaluation Report and Appendices, Alameda-Contra Costa Transit District (AC Transit)

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2009-01-01

    This is an evaluation of hydrogen fuel cell transit buses operating at AC Transit in revenue service since March 20, 2006 compared to similar diesel buses operating from the same depot. This evaluation report includes results from November 2007 through October 2008. Evaluation results include implementation experience, fueling station operation, fuel cell bus operations at Golden Gate Transit, and evaluation results at AC Transit (bus usage, availability, fuel economy, maintenance costs, and roadcalls).

  7. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices

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

    5670-1 Revised September 2009 Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report Kevin Chandler, Battelle Leslie Eudy, National Renewable Energy Laboratory Link to Appendices Photo source: CTTRANSIT Photo source: CTTRANSIT National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Operated by the

  8. Construction, Qualification, and Low Rate Production Start-up of a DC Bus

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

    Capacitor High Volume Manufacturing Facility with Capacity to Support 100,000 Electric Drive Vehicles | Department of Energy 1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation arravt029_ape_sawyer_2011_p.pdf (670.52 KB) More Documents & Publications Construction, Qualification, and Low Rate Production Start-up of a DC Bus Capacitor High Volume Manufacturing Facility with Capacity to Support 100,000 Electric Drive Vehicles

  9. St. Louis Metro Biodiesel (B20) Transit Bus Evaluation: 12-Month Final Report

    SciTech Connect (OSTI)

    Barnitt, R.; McCormick, R. L.; Lammert, M.

    2008-07-01

    The St. Louis Metro Bodiesel Transit Bus Evaluation project is being conducted under a Cooperative Research and Development Agreement between NREL and the National Biodiesel Board to evaluate the extended in-use performance of buses operating on B20 fuel. The objective of this research project is to compare B20 and ultra-low sulfur diesel buses in terms of fuel economy, veicles maintenance, engine performance, component wear, and lube oil performance.

  10. SunLine Transit Agency Fuel Cell Transit Bus: Fourth Evaluation Report and

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

    Appendices | Department of Energy This is the fourth evaluation report for this site, and it describes results and experiences from April 2008 through October 2008. 44646-1.pdf (641.2 KB) More Documents & Publications SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation Report SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report and Appendices SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results

  11. Comparison of LNG, CNG, and diesel transit bus economics. Topical report, July 1992-September 1993

    SciTech Connect (OSTI)

    Powars, C.A.; Moyer, C.B.; Luscher, D.R.; Lowell, D.D.; Pera, C.J.

    1993-10-20

    The purpose of the report is to compare the expected costs of operating a transit bus fleet on liquefied natural gas (LNG), compressed natural gas (CNG), and diesel fuel. The special report is being published prior to the overall project final report in response to the current high level of interest in LNG transit buses. It focuses exclusively on the economics of LNG buses as compared with CNG and diesel buses. The reader is referred to the anticipated final report, or to a previously published 'White Paper' report (Reference 1), for information regarding LNG vehicle and refueling system technology and/or the economics of other LNG vehicles. The LNG/CNG/diesel transit bus economics comparison is based on total life-cycle costs considering all applicable capital and operating costs. The costs considered are those normally borne by the transit property, i.e., the entity facing the bus purchase decision. These costs account for the portion normally paid by the U.S. Department of Transportation (DOT) Federal Transit Administration (FTA). Transit property net costs also recognize the sale of emissions reduction credits generated by using natural gas (NG) engines which are certified to levels below standards (particularly for NOX).

  12. Redox shuttles for overcharge protection of lithium batteries

    DOE Patents [OSTI]

    Amine, Khalil; Chen, Zonghai; Wang, Qingzheng

    2010-12-14

    The present invention is generally related to electrolytes containing novel redox shuttles for overcharge protection of lithium-ion batteries. The redox shuttles are capable of thousands hours of overcharge tolerance and have a redox potential at about 3-5.5 V vs. Li and particularly about 4.4-4.8 V vs. Li. Accordingly, in one aspect the invention provides electrolytes comprising an alkali metal salt; a polar aprotic solvent; and a redox shuttle additive that is an aromatic compound having at least one aromatic ring with four or more electronegative substituents, two or more oxygen atoms bonded to the aromatic ring, and no hydrogen atoms bonded to the aromatic ring; and wherein the electrolyte solution is substantially non-aqueous. Further there are provided electrochemical devices employing the electrolyte and methods of making the electrolyte.

  13. Novel Redox Shuttles for Overcharge Protection of Lithium-Ion Batteries |

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

    Argonne National Laboratory Redox Shuttles for Overcharge Protection of Lithium-Ion Batteries Technology available for licensing: Electrolytes containing novel redox shuttles (electron transporters) for lithium-ion batteries Compatible with current battery technologies Provides overcharge protection, increased safety and long-term stability PDF icon redox_shuttles_overcharge

  14. Developing a Natural Gas-Powered Bus Rapid Transit Service: A Case Study

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

    Developing a Natural Gas- Powered Bus Rapid Transit Service: A Case Study George Mitchell National Renewable Energy Laboratory Technical Report NREL/TP-5400-64756 November 2015 NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy Operated by the Alliance for Sustainable Energy, LLC This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www.nrel.gov/publications. Contract No. DE-AC36-08GO28308

  15. Compressed Natural Gas (CNG) Transit Bus Experience Survey: April 2009--April 2010

    SciTech Connect (OSTI)

    Adams, R.; Horne, D. B.

    2010-09-01

    This survey was commissioned by the U.S. Department of Energy (DOE) and the National Renewable Energy Laboratory (NREL) to collect and analyze experiential data and information from a cross-section of U.S. transit agencies with varying degrees of compressed natural gas (CNG) bus and station experience. This information will be used to assist DOE and NREL in determining areas of success and areas where further technical or other assistance might be required, and to assist them in focusing on areas judged by the CNG transit community as priority items.

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

    SciTech Connect (OSTI)

    Duran, A.; Walkowicz, K.

    2013-10-01

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

  17. Product-form solution techniques for the performance analysis of multiple-bus multiprocessor systems with nonuniform memory references

    SciTech Connect (OSTI)

    Chiola, G.; Marsan, M.A.; Balbo, G.

    1988-05-01

    Recursive relations are derived for the exact computation of the steady-state probability distribution of some queueing models with passive resources that can be used to analyze the performance of multiple-bus multiprocessor system architectures. The most general case that was shown to admit a product-form solution is described, and a recursive solution is obtained considering different processor access rates, different memory selection probabilities, and an FCFS bus scheduling policy. Several simpler cases allowing easier model solutions are also considered. Numerical evaluations of large computing systems with nonuniform memory references show the usefulness of the results.

  18. Initial Results of the DeNOx SCR System by Urea Injection in the Euro 5 Bus

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

    | Department of Energy Initial Results of the DeNOx SCR System by Urea Injection in the Euro 5 Bus Initial Results of the DeNOx SCR System by Urea Injection in the Euro 5 Bus 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005_deer_seguelong.pdf (255.33 KB) More Documents & Publications Potential Effect of Pollutantn Emissions on Global Warming: First Comparisong Using External Costs on Urban Buses Vehicle Emissions Review - 2012 Comparative Study on

  19. Steering microtubule shuttle transport with dynamically controlled magnetic fields

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

    Mahajan, K. D.; Ruan, G.; DorcƩna, C. J.; Vieira, G.; Nabar, G.; Bouxsein, N. F.; Chalmers, J. J.; Bachand, G. D.; Sooryakumar, R.; Winter, J. O.

    2016-03-23

    Nanoscale control of matter is critical to the design of integrated nanosystems. Here, we describe a method to dynamically control directionality of microtubule (MT) motion using programmable magnetic fields. MTs are combined with magnetic quantum dots (i.e., MagDots) that are manipulated by external magnetic fields provided by magnetic nanowires. MT shuttles thus undergo both ATP-driven and externally-directed motion with a fluorescence component that permits simultaneous visualization of shuttle motion. This technology is used to alter the trajectory of MTs in motion and to pin MT motion. Ultimately, such an approach could be used to evaluate the MT-kinesin transport system andmoreĀ Ā» could serve as the basis for improved lab-on-a-chip technologies based on MT transport.Ā«Ā less

  20. Pulse-echo ultrasonic inspection system for in-situ nondestructive inspection of Space Shuttle RCC heat shields.

    SciTech Connect (OSTI)

    Roach, Dennis Patrick; Walkington, Phillip D.; Rackow, Kirk A.

    2005-06-01

    The reinforced carbon-carbon (RCC) heat shield components on the Space Shuttle's wings must withstand harsh atmospheric reentry environments where the wing leading edge can reach temperatures of 3,000 F. Potential damage includes impact damage, micro cracks, oxidation in the silicon carbide-to-carbon-carbon layers, and interlaminar disbonds. Since accumulated damage in the thick, carbon-carbon and silicon-carbide layers of the heat shields can lead to catastrophic failure of the Shuttle's heat protection system, it was essential for NASA to institute an accurate health monitoring program. NASA's goal was to obtain turnkey inspection systems that could certify the integrity of the Shuttle heat shields prior to each mission. Because of the possibility of damaging the heat shields during removal, the NDI devices must be deployed without removing the leading edge panels from the wing. Recently, NASA selected a multi-method approach for inspecting the wing leading edge which includes eddy current, thermography, and ultrasonics. The complementary superposition of these three inspection techniques produces a rigorous Orbiter certification process that can reliably detect the array of flaws expected in the Shuttle's heat shields. Sandia Labs produced an in-situ ultrasonic inspection method while NASA Langley developed the eddy current and thermographic techniques. An extensive validation process, including blind inspections monitored by NASA officials, demonstrated the ability of these inspection systems to meet the accuracy, sensitivity, and reliability requirements. This report presents the ultrasonic NDI development process and the final hardware configuration. The work included the use of flight hardware and scrap heat shield panels to discover and overcome the obstacles associated with damage detection in the RCC material. Optimum combinations of custom ultrasonic probes and data analyses were merged with the inspection procedures needed to properly survey the heat

  1. Manifold, bus support and coupling arrangement for solid oxide fuel cells

    DOE Patents [OSTI]

    Parry, G.W.

    1988-04-21

    Individual, tubular solid oxide fuel cells (SOFCs) are assembled into bundles called a module within a housing, with a plurality of modules arranged end-to-end in a linear, stacked configuration called a string. A common set of piping comprised of a suitable high temperature resistant material (1) provides fuel and air to each module housing, (2) serves as electrically conducting buses, and (3) provides structural support for a string of SOFC modules. Ceramic collars are used to connect fuel and air inlet piping to each of the electrodes in an SOFC module and provide (1) electrical insulation for the current carrying bus bars and gas manifolds, (2) damping for the fuel and air inlet piping, and (3) proper spacing between the fuel and air inlet piping to prevent contact between these tubes and possible damage to the SOFC. 11 figs.

  2. Denver SuperShuttle CNG Fleet Evaluation; Evaluacion de la flotilla de GNC de la empresa SuperShuttle de Denver

    SciTech Connect (OSTI)

    LaRocque, T.

    2001-10-01

    A description of a joint effort between Denver SuperShuttle, the Gas Research Institute (GRI) and DOE that evaluated two types of bi-fuel and compressed natural gas.

  3. SuperShuttle CNG Fleet Study Summary; Resumen de Estuidio de la Flotilla de GNC de la Empresa SuperShuttle

    SciTech Connect (OSTI)

    Eudy, L.

    2001-10-01

    An account of the successful use of alternative fuels in a fleet of SuperShuttle passenger vans, which offer shared-rides between Boulder and Denver International Airport.

  4. 10 CFR 830 Major Modification Determination for the ATR Diesel Bus (E-3) and Switchgear Replacement

    SciTech Connect (OSTI)

    Noel Duckwtiz

    2011-05-01

    Near term replacement of aging and obsolescent original ATR equipment has become important to ensure ATR capability in support of NEā€™s long term national missions. To that end, a mission needs statement has been prepared for a non-major system acquisition which is comprised of three interdependent subprojects. The first project, subject of this determination, will replace the existent diesel-electrical bus (E-3) and associated switchgear. More specifically, INL proposes transitioning ATR to 100% commercial power with appropriate emergency backup to include: ā€¢ Provide commercial power as the normal source of power to the ATR loads currently supplied by diesel-electric power. ā€¢ Provide backup power to the critical ATR loads in the event of a loss of commercial power. ā€¢ Replace obsolescent critical ATR power distribution equipment, e.g., switchgear, transformers, motor control centers, distribution panels. Completion of this and two other age-related projects (primary coolant pump and motor replacement and emergency firewater injection system replacement) will resolve major age related operational issues plus make a significant contribution in sustaining the ATR safety and reliability profile. The major modification criteria evaluation of the project pre-conceptual design identified several issues make the project a major modification: 1. Evaluation Criteria #2 (Footprint change). The addition of a new PC-4 structure to the ATR Facility to house safety-related SSCs requires careful attention to maintaining adherence to applicable engineering and nuclear safety design criteria (e.g., structural qualification, fire suppression) to ensure no adverse impacts to the safety-related functions of the housed equipment. 2. Evaluation Criteria #3 (Change of existing process). The change to the strategy for providing continuous reliable power to the safety-related emergency coolant pumps requires careful attention and analysis to ensure it meets a project primary object

  5. Fuel Cell Transit Bus Evaluations: Joint Evaluation Plan for the U.S. Department of Energy and the Federal Transit Administration (Report and Appendix)

    SciTech Connect (OSTI)

    Eudy, L.; Chandler, K.

    2010-11-01

    This document describes the fuel cell transit bus evaluations performed by the National Renewable Energy Laboratory (NREL) and funded by the U.S. Department of Energy (DOE) and the U.S. Department of Transportation's Federal Transit Administration (FTA). This document provides a description of the demonstration sites, funding sources, and data collection activities for fuel cell transit bus evaluations currently planned from FY10 through FY12.

  6. National Fuel Cell Bus Program: Accelerated Testing Evaluation Report #2, Alameda-Contra Costa Transit District (AC Transit) and Appendices

    SciTech Connect (OSTI)

    Eudy, L.; Chandler, K.

    2010-06-01

    This is an evaluation of hydrogen fuel cell transit buses operating at AC Transit in revenue service since March 20, 2006, comparing similar diesel buses operating from the same depot. It covers November 2007 through February 2010. Results include implementation experience, fueling station operation, evaluation results at AC Transit (bus usage, availability, fuel economy, maintenance costs, and road calls), and a summary of achievements and challenges encountered during the demonstration.

  7. Direct measurement of polysulfide shuttle current: A window into understanding the performance of lithium-sulfur cells

    SciTech Connect (OSTI)

    Moy, Derek; Manivannan, A.; Narayanan, S. R.

    2014-11-04

    The shuttling of polysulfide ions between the electrodes in a lithium-sulfur battery is a major technical issue limiting the self-discharge and cycle life of this high-energy rechargeable battery. Although there have been attempts to suppress the shuttling process, there has not been a direct measurement of the rate of shuttling. We report here a simple and direct measurement of the rate of the shuttling (that we term ā€œshuttle currentā€), applicable to the study of any type of lithium-sulfur cell. We demonstrate the effectiveness of this measurement technique using cells with and without lithium nitrate (a widely-used shuttle suppressor additive). We present a phenomenological analysis of the shuttling process and simulate the shuttle currents as a function of the state-of-charge of a cell. We also demonstrate how the rate of decay of the shuttle current can be used to predict the capacity fade in a lithium-sulfur cell due to the shuttle process. As a result, we expect that this new ability to directly measure shuttle currents will provide greater insight into the performance differences observed with various additives and electrode modifications that are aimed at suppressing the rate of shuttling of polysulfide ions and increasing the cycle life of lithium-sulfur cells.

  8. Direct measurement of polysulfide shuttle current: A window into understanding the performance of lithium-sulfur cells

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

    Moy, Derek; Manivannan, A.; Narayanan, S. R.

    2014-11-04

    The shuttling of polysulfide ions between the electrodes in a lithium-sulfur battery is a major technical issue limiting the self-discharge and cycle life of this high-energy rechargeable battery. Although there have been attempts to suppress the shuttling process, there has not been a direct measurement of the rate of shuttling. We report here a simple and direct measurement of the rate of the shuttling (that we term ā€œshuttle currentā€), applicable to the study of any type of lithium-sulfur cell. We demonstrate the effectiveness of this measurement technique using cells with and without lithium nitrate (a widely-used shuttle suppressor additive). WemoreĀ Ā» present a phenomenological analysis of the shuttling process and simulate the shuttle currents as a function of the state-of-charge of a cell. We also demonstrate how the rate of decay of the shuttle current can be used to predict the capacity fade in a lithium-sulfur cell due to the shuttle process. As a result, we expect that this new ability to directly measure shuttle currents will provide greater insight into the performance differences observed with various additives and electrode modifications that are aimed at suppressing the rate of shuttling of polysulfide ions and increasing the cycle life of lithium-sulfur cells.Ā«Ā less

  9. Direct measurement of polysulfide shuttle current: A window into understanding the performance of lithium-sulfur cells

    SciTech Connect (OSTI)

    Moy, Derek [Univ. of Southern California, Los Angeles, CA (United States). Loker Hydrocarbon Research Institute.; Manivannan, A. [National Energy Technology Lab. (NETL), Morgantown, WV (United States); Narayanan, S. R. [Univ. of Southern California, Los Angeles, CA (United States). Loker Hydrocarbon Research Institute.

    2014-11-01

    The shuttling of polysulfide ions between the electrodes in a lithium-sulfur battery is a major technical issue limiting the self-discharge and cycle life of this high-energy rechargeable battery. Although there have been attempts to suppress the shuttling process, there has not been a direct measurement of the rate of shuttling. We report here a simple and direct measurement of the rate of the shuttling (that we term “shuttle current”), applicable to the study of any type of lithium-sulfur cell. We demonstrate the effectiveness of this measurement technique using cells with and without lithium nitrate (a widely-used shuttle suppressor additive). We present a phenomenological analysis of the shuttling process and simulate the shuttle currents as a function of the state-of-charge of a cell. We also demonstrate how the rate of decay of the shuttle current can be used to predict the capacity fade in a lithium-sulfur cell due to the shuttle process. We expect that this new ability to directly measure shuttle currents will provide greater insight into the performance differences observed with various additives and electrode modifications that are aimed at suppressing the rate of shuttling of polysulfide ions and increasing the cycle life of lithium-sulfur cells.

  10. The Energy DataBus: NREL's Open-Source Application for Large-Scale Energy Data Collection and Analysis

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

    NRELā€™s Energy DataBus is used for tracking and analyzing energy use on its own campus. The system is applicable to other facilitiesā€”including anything from a single building to a large military base or college campusā€”or for other energy data management needs. Managing and minimizing energy consumption on a large campus is usually a difficult task for facility managers: There may be hundreds of energy meters spread across a campus, and the meter data are often recorded by hand. Even when data are captured electronically, there may be measurement issues or time periods that may not coincide. Making sense of this limited and often confusing data can be a challenge that makes the assessment of building performance a struggle for many facility managers. The Energy DataBus software was developed by NREL to address these issues on its own campus, but with an eye toward offering its software solutions to other facilities. Key features include the software's ability to store large amounts of data collected at high frequenciesā€”NREL collects some of its energy data every secondā€”and rich functionality to integrate this wide variety of data into a single database [copied from http://en.openei.org/wiki/NREL_Energy_DataBus].

  11. The Energy DataBus: NREL's Open-Source Application for Large-Scale Energy Data Collection and Analysis

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

    NREL’s Energy DataBus is used for tracking and analyzing energy use on its own campus. The system is applicable to other facilities—including anything from a single building to a large military base or college campus—or for other energy data management needs. Managing and minimizing energy consumption on a large campus is usually a difficult task for facility managers: There may be hundreds of energy meters spread across a campus, and the meter data are often recorded by hand. Even when data are captured electronically, there may be measurement issues or time periods that may not coincide. Making sense of this limited and often confusing data can be a challenge that makes the assessment of building performance a struggle for many facility managers. The Energy DataBus software was developed by NREL to address these issues on its own campus, but with an eye toward offering its software solutions to other facilities. Key features include the software's ability to store large amounts of data collected at high frequencies—NREL collects some of its energy data every second—and rich functionality to integrate this wide variety of data into a single database [copied from http://en.openei.org/wiki/NREL_Energy_DataBus].

  12. Developing a Natural Gas-Powered Bus Rapid Transit Service. A Case Study

    SciTech Connect (OSTI)

    Mitchell, George

    2015-11-01

    The Roaring Fork Transit Authority (RFTA) and its VelociRFTA Bus Rapid Transit (BRT) program are unique in many ways. For example, VelociRFTA was the first rural BRT system in the United States and the operational environment of the VelociRFTA BRT is one of the most severe in the country, with extreme winter temperatures and altitudes close to 8,000 feet. RFTA viewed high altitude operation as the most challenging characteristic when it began considering the use of natural gas. RFTA is the second-largest public transit system in Colorado behind Denver's Regional Transportation District (RTD), and it is one of the largest rural public transit systems in the country. In 2013, RFTA accepted delivery of 22 new compressed natural gas (CNG) buses that went into service after completion of maintenance and refueling facilities earlier that year. This paper examines the lessons learned from RFTA's experience of investigating--and ultimately choosing--CNG for their new BRT program and focuses on the unique environment of RFTA's BRT application; the decision process to include CNG fueling in the project; unforeseen difficulties encountered in the operation of CNG buses; public perception; cost comparison to competing fuels; and considerations for indoor fueling facilities and project funding.

  13. Developing a Natural Gas-Powered Bus Rapid Transit Service: A Case Study

    SciTech Connect (OSTI)

    Mitchell, G.

    2015-11-03

    The Roaring Fork Transit Authority (RFTA) and its VelociRFTA Bus Rapid Transit (BRT) program are unique in many ways. For example, VelociRFTA was the first rural BRT system in the United States and the operational environment of the VelociRFTA BRT is one of the most severe in the country, with extreme winter temperatures and altitudes close to 8,000 feet. RFTA viewed high altitude operation as the most challenging characteristic when it began considering the use of natural gas. RFTA is the second-largest public transit system in Colorado behind Denver's Regional Transportation District (RTD), and it is one of the largest rural public transit systems in the country. In 2013, RFTA accepted delivery of 22 new compressed natural gas (CNG) buses that went into service after completion of maintenance and refueling facilities earlier that year. This paper examines the lessons learned from RFTA's experience of investigating--and ultimately choosing--CNG for their new BRT program and focuses on the unique environment of RFTA's BRT application; the decision process to include CNG fueling in the project; unforeseen difficulties encountered in the operation of CNG buses; public perception; cost comparison to competing fuels; and considerations for indoor fueling facilities and project funding.

  14. Manifold, bus support and coupling arrangement for solid oxide fuel cells

    DOE Patents [OSTI]

    Parry, Gareth W.

    1989-01-01

    Individual, tubular solid oxide fuel cells (SOFCs) are assembled into bundles called a module within a housing, with a plurality of modules arranged end-to-end in a linear, stacked configuration called a string. A common set of piping comprised of a suitable high temperture resistant material (1) provides fuel and air to each module housing, (2) serves as electrically conducting buses, and (3) provides structural support for a string of SOFC modules. The piping thus forms a manfold for directing fuel and air to each module in a string and makes electrical contact with the module's anode and cathode to conduct the DC power generated by the SOFC. The piping also provides structureal support for each individual module and maintains each string of modules as a structurally integral unit for ensuring high strength in a large 3-dimensional array of SOFC modules. Ceramic collars are used to connect fuel and air inlet piping to each of the electrodes in an SOFC module and provide (1) electrical insulation for the current carrying bus bars and gas manifolds, (2) damping for the fuel and air inlet piping, and (3) proper spacing between the fuel and air inlet piping to prevent contact between these tubes and possible damage to the SOFC.

  15. Sampling and analysis plan for the former Atomic Energy Commission bus lot property

    SciTech Connect (OSTI)

    Nielson, R.R.

    1998-07-01

    This sampling and analysis plan (SAP) presents the rationale and strategy for the sampling and analysis activities proposed in support of an initial investigation of the former Atomic Energy Commission (AEC) bus lot property currently owned by Battelle Memorial Institute. The purpose of the proposed sampling and analysis activity is to investigate the potential for contamination above established action levels. The SAP will provide defensible data of sufficient quality and quantity to support recommendations of whether any further action within the study area is warranted. To assist in preparing sampling plans and reports, the Washington State Department of Ecology (Ecology) has published Guidance on Sampling and Data Analysis Methods. To specifically address sampling plans for petroleum-contaminated sites, Ecology has also published Guidance for Remediation of Petroleum Contaminated Sites. Both documents were used as guidance in preparing this plan. In 1992, a soil sample was taken within the current study area as part of a project to remove two underground storage tanks (USTs) at Battelle`s Sixth Street Warehouse Petroleum Dispensing Station (Section 1.3). The results showed that the sample contained elevated levels of total petroleum hydrocarbons (TPH) in the heavy distillate range. This current study was initiated in part as a result of that discovery. The following topics are considered: the historical background of the site, current site conditions, previous investigations performed at the site, an evaluation based on the available data, and the contaminants of potential concern (COPC).

  16. Shuttle-promoted nano-mechanical current switch

    SciTech Connect (OSTI)

    Song, Taegeun Kiselev, Mikhail N.; Gorelik, Leonid Y.; Shekhter, Robert I.; Kikoin, Konstantin

    2015-09-21

    We investigate electron shuttling in three-terminal nanoelectromechanical device built on a movable metallic rod oscillating between two drains. The device shows a double-well shaped electromechanical potential tunable by a source-drain bias voltage. Four stationary regimes controllable by the bias are found for this device: (i) single stable fixed point, (ii) two stable fixed points, (iii) two limit cycles, and (iv) single limit cycle. In the presence of perpendicular magnetic field, the Lorentz force makes possible switching from one electromechanical state to another. The mechanism of tunable transitions between various stable regimes based on the interplay between voltage controlled electromechanical instability and magnetically controlled switching is suggested. The switching phenomenon is implemented for achieving both a reliable active current switch and sensoring of small variations of magnetic field.

  17. Freight Shuttle System: Cross-Border Movement of Goods

    SciTech Connect (OSTI)

    2011-05-31

    The Freight Shuttle System (FSS) is designed to provide freight transportation services between those short and intermediate distance locations (within 600 miles) that are currently handling large volumes of freight traffic. Much like trucks, the FSS's transporters are autonomous: each transporter has its own propulsion and travels independently of other transporters. Inspired by railroads, each FSS transporter has steel wheels operating on a steel running surface and can carry either a standardsize freight container or an over-the-road truck trailer. However, unlike either rail or trucks, the FSS runs on an elevated, dedicated guideway to avoid the interference of other transportation systems. The objective of this report is to examine the potential viability for an alternative transportation system for trailers and containers in a multi-national, cross-border setting. The El Paso-Ciudad Juarez region serves as the environment of this analysis.

  18. SiC Power Module

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

    Shuttle Bus and Couriers Shuttle Bus and Couriers Shuttle Bus Route and Schedule The DOE Shuttle Buses follow the same schedules between the two main Headquarters locations, Forrestal and Germantown. The buses start their routes at each Headquarters facility at the same times, see the schedule below. The subsequent stops at the other facilities are relative to the departure time of each route. The shuttle bus departure and arrival times may be impacted by traffic, weather, or other logistical

  19. Experimental Endeavour on a Pillar of Flame: Space Shuttle Rises with

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

    Ambitious Technology Aboard | Department of Energy Experimental Endeavour on a Pillar of Flame: Space Shuttle Rises with Ambitious Technology Aboard Experimental Endeavour on a Pillar of Flame: Space Shuttle Rises with Ambitious Technology Aboard May 17, 2011 - 5:15pm Addthis Smoke cloud from Endeavour's Final Launge | Photo: NASA, Troy Cryder Smoke cloud from Endeavour's Final Launge | Photo: NASA, Troy Cryder Charles Rousseaux Charles Rousseaux Senior Communications Specialist (detailee)

  20. SuperShuttle CNG Fleet Evaluation--Final Report

    SciTech Connect (OSTI)

    Eudy, L.

    2000-12-07

    The mission of the US Department of Energy's Office of Transportation Technologies is to promote the development and deployment of transportation technologies that reduce US dependence on foreign oil, while helping to improve the nation's air quality and promoting US competitiveness. In support of this mission, DOE has directed the National Renewable Energy Laboratory to conduct projects to evaluate the performance and acceptability of alternative fuel vehicles. NREL has undertaken several fleet study projects, which seek to provide objective real-world fleet experiences with AFVs. For this type of study we collect, analyze, and report on operational, cost, emissions, and performance data from AFVs being driven in a fleet application. The primary purpose of such studies is to make real-world information on AFVs available to fleet managers and other potential AFV purchasers. For this project, data was collected from 13 passenger vans operating in the Boulder/Denver, Colorado area. The study vehicles were all 1999 Ford E-350 passenger vans based at SuperShuttle's Boulder location. Five of the vans were dedicated CNG, five were bi-fuel CNG/gasoline, and three were standard gasoline vans that were used for comparison.

  1. Clean air program: Design guidelines for bus transit systems using liquefied petroleum gas (LPG) as an alternative fuel. Final report, July 1995-April 1996

    SciTech Connect (OSTI)

    Raj, P.K.; Hathaway, W.T.; Kangas, R.

    1996-09-01

    The Federal Transit Administration (FTA) has initiated the development of `Design Guidelines for Bus Transit Systems Using Alternative Fuels.` This report provides design guidelines for the safe uses of Liquefied Petroleum Gas (LPG). It forms a part of the series of individual monographs being published by the FTA on (the guidelines for the safe use of) Compressed Natural Gas (CNG), Liquefied Natural Gas (LNG), Liquefied Petroleum Gas (LPG) and alcohol fuels (Methanol and Ethanol). Each report in this series describes for the subject fuel the important fuel properties, guidelines for the design and operation of bus fueling, storage and maintenance facilities, issues on personnel training and emergency preparedness.

  2. An Opportunistic Wireless Charging System Design for an On-Demand Shuttle Service (Presentation), NREL (National Renewable Energy Laboratory)

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

    Opportunistic Wireless Charging System Design for an On-Demand Shuttle Service Andrew Meintz Kate Doubleday, Tony Markel Publication No. PR-5400-66571 2016 IEEE Transportation Electrification Conference and Expo (ITEC'16) Dearborn, Michigan June 29, 2016 2 On-Demand NREL Employee Shuttle Photo by Dennis Schroeder (NREL 32221) 3 Charging through Wireless Power Transfer (WPT) Ground-side transmitter Vehicle-side receivers 4 Typical Shuttle Route Imagery and map data by Google Ā© 2016 5 Typical

  3. Solid polymer electrolyte electrochemical storage cell containing a redox shuttle additive for overcharge protection

    DOE Patents [OSTI]

    Richardson, Thomas J.; Ross, Philip N.

    1999-01-01

    A class of organic redox shuttle additives is described, preferably comprising nitrogen-containing aromatics compounds, which can be used in a high temperature (85.degree. C. or higher) electrochemical storage cell comprising a positive electrode, a negative electrode, and a solid polymer electrolyte to provide overcharge protection to the cell. The organic redox additives or shuttles are characterized by a high diffusion coefficient of at least 2.1.times.10.sup.-8 cm.sup.2 /second and a high onset potential of 2.5 volts or higher. Examples of such organic redox shuttle additives include an alkali metal salt of 1,2,4-triazole, an alkali metal salt of imidazole, 2,3,5,6-tetramethylpyrazine, 1,3,5-tricyanobenzene, and a dialkali metal salt of 3-4-dihydroxy-3-cyclobutene-1,2-dione.

  4. Fuel Cells Shine a Light on the Last Endeavour Space Shuttle Launch |

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

    Department of Energy Cells Shine a Light on the Last Endeavour Space Shuttle Launch Fuel Cells Shine a Light on the Last Endeavour Space Shuttle Launch May 16, 2011 - 9:35am Addthis Sunita Satyapal Director, Fuel Cell Technologies Office What does this mean for me? A new hydrogen fuel cell-powered mobile light tower that has the potential to drastically reduce dependence on diesel-fueled mobile lighting across the United States. They are cleaner and quieter than diesel mobile light towers

  5. In the Face of Hurricane Sandy, CNG Vehicles Shuttle People to Safety |

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

    Department of Energy In the Face of Hurricane Sandy, CNG Vehicles Shuttle People to Safety In the Face of Hurricane Sandy, CNG Vehicles Shuttle People to Safety November 6, 2012 - 5:00pm Addthis Natural gas jitneys like this are Atlantic City's main form of public transportation. These vehicles were used to evacuate vulnerable residents during Hurricane Sandy. This vehicle is fueling up at a natural gas station built, owned, and operated by Clean Energy Fuels, who kept the station running

  6. EERE Success Storyā€”Redox Shuttle Additive, Wins 2014 R&D 100 Award

    Broader source: Energy.gov [DOE]

    Sandia National Laboratory and the Argonne National Laboratory have developed a chemical solution, known as a redox shuttle additive, a chemical that prevents overcharging by electrochemically ā€œlocking inā€ a maximum voltage that is dependent on the chemical structure of the additive and the nature of the battery material.

  7. Enterprise Assessments Targeted Review, Management of the Safety-Related 480 Volt Diesel Bus Battery-Backed Power System of the Idaho National Laboratory Advanced Test Reactor ā€“October 2015

    Broader source: Energy.gov [DOE]

    Targeted Review of the Management of the Safety-Related 480 Volt Diesel Bus Battery-Backed Power System of the Idaho National Laboratory Advanced Test Reactor at the Idaho Site

  8. Development of the Cummins L10 engine to operate on natural gas for heavy duty transit bus applications. Final report, August 1988-December 1991

    SciTech Connect (OSTI)

    Welliver, D.R.

    1993-07-01

    This report covers all of the activities of a program undertaken to develop a natural gas fueled engine using the Cummins L10 diesel engine as the base engine. The base diesel engine is a 10 liter turbocharged jacket water aftercooled carcass that develops 270 hp at 2100 rpm. The design goals included developing a natural gas version at 240 hp with 750 lb-ft of peak torque with exhaust emission level demonstration meeting the 1991 EPA Urban Bus Emission Mandate. Additional goals included demonstrating diesel like vehicle performance and diesel like reliability and durability. Two fuel delivery systems were evaluated, one mechanical and the other electronic closed loop. Field and laboratory test engines were utilized to document reliability. Results of this program led to the production release of the gas engine for transit bus applications and California Air Resources Board certification during 1992.

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

    SciTech Connect (OSTI)

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

    2012-10-01

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

  10. Epidemiological-environmental study of diesel bus garage workers: chronic effects of diesel exhaust on the respiratory system

    SciTech Connect (OSTI)

    Gamble, J.; Jones, W.; Minshall, S.

    1987-10-01

    Two hundred and eighty-three (283) male diesel bus garage workers from four garages in two cities were examined to determine if there was excess chronic respiratory morbidity related to diesel exposure. The dependent variables were respiratory symptoms, radiographic interpretation for pneumoconiosis, and pulmonary function (FVC, FEV1, and flow rates). Independent variables included race, age, smoking, drinking, height, and tenure (as surrogate measure of exposure). Exposure-effect relationships within the study population showed no detectable associations of symptoms with tenure. There was an apparent association of pulmonary function and tenure. Seven workers (2.5%) had category 1 pneumoconiosis (three rounded opacities, two irregular opacities, and one with both rounded and irregular). The study population was also compared to a nonexposed blue-collar population. After indirect adjustment for age, race, and smoking, the study population had elevated prevalences of cough, phlegm, and wheezing, but there was no association with tenure. Dyspnea showed a dose-response trend but no apparent increase in prevalence. Mean percent predicted pulmonary function of the study population was greater than 100%, i.e., elevated above the comparison population. These data show there is an apparent effect of diesel exhaust on pulmonary function but not chest radiographs. Respiratory symptoms are high compared to blue-collar workers, but there is no relationship with tenure.

  11. SuperShuttle CNG Fleet Study Summary: Clean Cities Alternative Fuel Information Series, Alternative Fuel Case Study

    SciTech Connect (OSTI)

    Eudy, L.

    2001-03-05

    An account of the successful use of alternative fuels in a fleet of SuperShuttle passenger vans, which offer shared-rides between Boulder and Denver International Airport.

  12. Cold box shuttle - a system for the recovery of offshore gas - applied to Sweden

    SciTech Connect (OSTI)

    Smith, D.; Eriksson, L.; Pehrsson, L.O.; Strom-Olsen, H.

    1982-01-01

    The recovery of offshore gas as LNG, by heat exchange on an LNG carrier with liquid nitrogen, was studied in the context of a North Sea gas source and a Swedish market. The technical suitability of each component of this cold-box shuttle system was examined and the capital and operating costs were estimated. It was concluded that the system is technically robust and flexible and that, for the case studied, gas could be landed at a competitive cost.

  13. Health & Safety

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

    Health & Safety Health & Safety1354608000000Health & SafetySome of these resources are LANL-only and will require Remote Access.NoQuestions? 667-5809library@lanl.gov Health &...

  14. Factors affecting the failure of copper connectors brazed to copper bus bar segments on a 615-MVA hydroelectric generator at Grand Coulee Dam

    SciTech Connect (OSTI)

    Atteridge, D.G.; Klein, R.F.; Layne, R.; Anderson, W.E.; Correy, T.B.

    1988-01-01

    On March 21, 1986, the United States Bureau of Reclamation experienced a ground fault in the main parallel ring assembly of Unit G19 - a 615-MVA hydroelectric generator - at Grand Coulee Dam, Washington. Inspection of the unit revealed that the ground fault had been induced by fracture of one or more of the copper connectors used to join adjacent segments of one of the bus bars in the north half of the assembly. Various experimental techniques were used to detect and determine the presence of cracks, crack morphology, corrosion products, and material microstructure and/or embrittlement. The results of these inspections and recommendations are given. 7 refs., 27 figs.

  15. Risk Analysis of the Space Shuttle: Pre-Challenger Bayeisan Prediction of Failure

    SciTech Connect (OSTI)

    Dana L. Kelly

    2008-02-01

    Dalal et al performed a statistical analysis of field and nozzle O-ring data collected prior to the ill-fated launch of the Challenger in January 1986. The purpose of their analysis was to show how statistical analysis could be used to provide information to decisionmakers prior to the launch, information that could have been expected to lead to a decision to abort the launch due to the low temperatures (~30o F.) present at the launch pad on the morning of the scheduled launch. Dalal et al. performed a frequentist analysis of the O-ring data, and found that a logistic regression model provided a relatively good fit to the past data. In the second portion of their paper, Dalal et al. propagated parameter uncertainties through the fitted logistic regression model in order to estimate the probability of shuttle failure due to O-ring failure at the estimated launch temperature of ~30o F. Because their analysis was frequentist in nature, probability distributions representing epistemic uncertainty in the input parameters were not available, and the authors had to resort to an approximate approach based on bootstrap confidence intervals. In this paper, we will re-evaluate the analyses of Dalal et al. from a Bayesian perspective. Markov chain Monte Carlo (MCMC) sampling will be used to sample from the joint posterior distribution of the model parameters, and to sample from the posterior predictive distributions at the estimated launch temperature, a temperature that had not been observed in prior launches of the space shuttle. Uncertainties, which are represented by probability distributions in the Bayesian approach, are propagated through the model to obtain a probability distribution for O-ring failure, and subsequently for shuttle failure as a result of O-ring failure. No approximations are required in the Bayesian approach and the resulting distributions can be input to a decision analysis to obtain expected utility for the decision to launch.

  16. BAG3 affects the nucleocytoplasmic shuttling of HSF1 upon heat stress

    SciTech Connect (OSTI)

    Jin, Young-Hee; Ahn, Sang-Gun; Kim, Soo-A.

    2015-08-21

    Bcl2-associated athoanogene (BAG) 3 is a member of the co-chaperone BAG family. It is induced by stressful stimuli such as heat shock and heavy metals, and it regulates cellular adaptive responses against stressful conditions. In this study, we identified a novel role for BAG3 in regulating the nuclear shuttling of HSF1 during heat stress. The expression level of BAG3 was induced by heat stress in HeLa cells. Interestingly, BAG3 rapidly translocalized to the nucleus upon heat stress. Immunoprecipitation assay showed that BAG3 interacts with HSF1 under normal and stressed conditions and co-translocalizes to the nucleus upon heat stress. We also demonstrated that BAG3 interacts with HSF1 via its BAG domain. Over-expression of BAG3 down-regulates the level of nuclear HSF1 by exporting it to the cytoplasm during the recovery period. Depletion of BAG3 using siRNA results in reduced nuclear HSF1 and decreased Hsp70 promoter activity. BAG3 in MEF(hsf1{sup āˆ’/āˆ’}) cells actively translocalizes to the nucleus upon heat stress suggesting that BAG3 plays a key role in the processing of the nucleocytoplasmic shuttling of HSF1 upon heat stress. - Highlights: ā€¢ The expression level of BAG3 is induced by heat stress. ā€¢ BAG3 translocates to the nucleus upon heat stress. ā€¢ BAG3 interacts with HSF1 and co-localizes to the nucleus. ā€¢ BAG3 is a key regulator for HSF1 nuclear shuttling.

  17. Environmental applications of hand-held photography taken from the space shuttle

    SciTech Connect (OSTI)

    Muehlberger, W.R.

    1996-07-01

    Astronauts have been taking photographs of earth since 1965, years before unmanned satellites began systematic coverage. The trained eye of an intelligent observer permits the rapid identification of a feature or an anomaly so that it can be the central focus of the photograph, rather than one of an endless stream of information from an unmanned satellite through which the interpreter has to sort and pick. This paper describes some of the environmental uses of hand-held photography since the launch of the first Space Shuttle in April, 1981.

  18. An Organophosphine Oxide Redox Shuttle Additive that Delivers Long-term

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

    Overcharge Protection for 4 V Lithium-ion Batteries - Joint Center for Energy Storage Research 4, 2015, Research Highlights An Organophosphine Oxide Redox Shuttle Additive that Delivers Long-term Overcharge Protection for 4 V Lithium-ion Batteries Organophosphine oxide groups not only can provide suitable steric protection of the generated radical cation, but also can increase the redox potential to 4.5 V, which is suitable for overcharge protection of LiMn2O4 cathode material Scientific

  19. Health Physicist

    Broader source: Energy.gov [DOE]

    This position is located in the Office of Environment, Health, Safety and Security (EHSS) which manages the Department of Energy's (DOE) major staff organizations responsible for health, safety,...

  20. Health Videos

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

    Health Videos Health Videos Our videos speak more than a thousand words about our science and technology, community outreach, collaborations, careers, and much more. News Releases...

  1. Epidemiological-environmental study of diesel bus garage workers: acute effects of NO/sub 2/ and respirable particulate on the respiratory system

    SciTech Connect (OSTI)

    Gamble, J.; Jones, W.; Minshall, S.

    1987-02-01

    Personal samples of nitrogen dioxide (NO/sub 2/) and respirable particulate (RP) were collected over the shift on 232 workers in four diesel bus garages. Response was assessed by an acute respiratory questionnaire and before and after shift spirometry. Measures of exposure to NO/sub 2/ and RP were associated with work-related symptoms of cough; itching, burning, or watering eyes; difficult or labored breathing; chest tightness; and wheeze. The prevalence of burning eyes, headaches, difficult or labored breathing, nausea, and wheeze experienced at work were higher in the diesel bus garage workers than in a comparison population of battery workers, while the prevalence of headaches was reduced. Mean reductions in forced vital capacity (FVC), forced expiratory volume in 1 sec (FEV1), peak flow, and flows at 50 and 75% of FVC were not obviously different from zero. There was no detectable association of exposure to NO/sub 2/ or respirable particulate and acute reductions in pulmonary function. Workers who often had respiratory work-related symptoms generally had a slightly greater mean acute reduction in FEV1 and FEF50 than did those who did not have these symptoms, but these differences were not statistically significant.

  2. Redox shuttles having an aromatic ring fused to a 1,1,4,4-tetrasubstituted cyclohexane ring

    DOE Patents [OSTI]

    Weng, Wei; Zhang, Zhengcheng; Amine, Khalil

    2015-12-01

    An electrolyte includes an alkali metal salt; an aprotic solvent; and a redox shuttle additive including an aromatic compound having at least one aromatic ring fused with at least one non-aromatic ring, the aromatic ring having two or more oxygen or phosphorus-containing substituents.

  3. NERSC Operational Assessment Review

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

    Berkeley BART station. If you plan to take the LBNL shuttle, you are required to have an LBNL Visitor Bus Pass (requires advance notice) and picture ID to show the bus driver. ...

  4. Design Forward and Fast Forward Semi-Annual Review

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

    Berkeley BART station. If you plan to take the LBNL shuttle, you are required to have an LBNL Visitor Bus Pass (requires advance notice) and picture ID to show the bus driver. ...

  5. Self-propelled in-tube shuttle and control system for automated measurements of magnetic field alignment

    SciTech Connect (OSTI)

    Boroski, W.N.; Nicol, T.H. ); Pidcoe, S.V. . Space Systems Div.); Zink, R.A. )

    1990-03-01

    A magnetic field alignment gauge is used to measure the field angle as a function of axial position in each of the magnets for the Superconducting Super Collider (SSC). Present measurements are made by manually pushing the through the magnet bore tube and stopping at intervals to record field measurements. Gauge location is controlled through graduation marks and alignment pins on the push rods. Field measurements are recorded on a logging multimeter with tape output. Described is a computerized control system being developed to replace the manual procedure for field alignment measurements. The automated system employs a pneumatic walking device to move the measurement gauge through the bore tube. Movement of the device, called the Self-Propelled In-Tube Shuttle (SPITS), is accomplished through an integral, gas driven, double-acting cylinder. The motion of the SPITS is transferred to the bore tube by means of a pair of controlled, retractable support feet. Control of the SPITS is accomplished through an RS-422 interface from an IBM-compatible computer to a series of solenoid-actuated air valves. Direction of SPITS travel is determined by the air-valve sequence, and is managed through the control software. Precise axial position of the gauge within the magnet is returned to the control system through an optically-encoded digital position transducer attached to the shuttle. Discussed is the performance of the transport device and control system during preliminary testing of the first prototype shuttle. 1 ref., 7 figs.

  6. U.S. Department of Energy U.S. Energy...

    Gasoline and Diesel Fuel Update (EIA)

    ...intercity bus transportation OTHS Other shuttle service PARA Paratransit (a.k.a. demand response) PERS Personal transportation RENT Daily or short-term rental STUD Student ...

  7. 2.3-MW Medium-Voltage, Three-Level Wind Energy Inverter Applying a Unique Bus Structure and 4.5-kV Si/SiC Hybrid Isolated Power Modules: Preprint

    SciTech Connect (OSTI)

    Erdman, W.; Keller, J.; Grider, D.; VanBrunt, E.

    2014-11-01

    A high-efficiency, 2.3-MW, medium-voltage, three-level inverter utilizing 4.5-kV Si/SiC (silicon carbide) hybrid modules for wind energy applications is discussed. The inverter addresses recent trends in siting the inverter within the base of multimegawatt turbine towers. A simplified split, three-layer laminated bus structure that maintains low parasitic inductances is introduced along with a low-voltage, high-current test method for determining these inductances. Feed-thru bushings, edge fill methods, and other design features of the laminated bus structure provide voltage isolation that is consistent with the 10.4-kV module isolation levels. Inverter efficiency improvement is a result of the (essential) elimination of the reverse recovery charge present in 4.5-kV Si PIN diodes, which can produce a significant reduction in diode turn-off losses as well as insulated-gate bipolar transistor (IGBT) turn-on losses. The hybrid modules are supplied in industry-standard 140 mm x 130 mm and 190 mm x 130 mm packages to demonstrate direct module substitution into existing inverter designs. A focus on laminated bus/capacitor-bank/module subassembly level switching performance is presented.

  8. NREL: Transportation Research - NREL Evaluates Propane-to-Electricity

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

    Shuttle Bus Conversion at Zion National Park Evaluates Propane-to-Electricity Shuttle Bus Conversion at Zion National Park July 14, 2016 Photo of shuttle buses in mountain setting. NREL is evaluating the drive-cycle characteristics of a fleet of propane-powered shuttle buses operating at Zion National Park. The National Park Service (NPS) originally deployed the propane buses in 2000 to reduce congestion along the park's main traffic corridor. As the propane-powered fleet ages and associated

  9. Structural Health Monitoring

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

    Structural Health Monitoring Engineering Institute Structural Health Monitoring Structural Health Monitoring is the process of implementing a damage detection strategy for...

  10. Clean Cities Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles (Book), Clean Cities, Energy Efficiency & Renewable Energy (EERE)

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

    School Bus * Shuttle Bus * Transit Bus * Refuse Truck * Tractor * Van * Vocational Truck Clean Cities Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles Clean Cities Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles 2 Clean Cities Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles 3 Table of Contents About the Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

  11. Plug IN Hybrid Vehicle Bus

    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.

  12. Selective hydrothermal synthesis of BiOBr microflowers and Bi{sub 2}O{sub 3} shuttles with concave surfaces

    SciTech Connect (OSTI)

    Xiao Peipei; Zhu Lingling; Zhu Yongchun; Qian Yitai

    2011-06-15

    Through controlling the amount of NaOH added, BiOBr and Bi{sub 2}O{sub 3} with different shapes were hydrothermally synthesized in the reaction system of Bi(NO{sub 3}){sub 3}-hexadecyl trimethyl ammonium bromide (CTAB)-NaOH. As 8 mmol of NaOH was added, BiOBr microflowers constructed of nanoflakes were synthesized. The thickness of these single-crystal nanoflakes was about 20 nm. In the similar condition, when the amount of NaOH added was 28 mmol, Bi{sub 2}O{sub 3} shuttles with concave surfaces were obtained. The length of these shuttles was 100 {mu}m and the diameter at the middle of these shuttles was 50 {mu}m. The photocatalytic activity of as-prepared BiOBr microflowers was evaluated by the degradation of methyl orange (MO) under visible-light irradiation ({lambda}>420 nm), which was up to 96% within 90 min. - Graphical abstract: Through controlling the amount of NaOH added, BiOBr microflowers and Bi{sub 2}O{sub 3} shuttles with concave surfaces were hydrothermally synthesized in the reaction system of Bi(NO{sub 3}){sub 3}-hexadecyl trimethyl ammonium bromide (CTAB)-NaOH. Highlights: > BiOBr microflowers constructed of nanoflakes were synthesized hydrothermally. > Bi{sub 2}O{sub 3} shuttles with concave surfaces were also synthesized. > Their formation mechanisms were studied based on the experimental results. > The photocatalytic activity of BiOBr microflowers was evaluated under visible-light irradiation.

  13. Behavioral Health Insurance Plan

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

    Behavioral Health Behavioral Health Preauthorization from BCBSNM is required for all behavioral health services. Contact Behavioral Health Unit Mental health services for retirees BlueCross BlueShield of New Mexico (BCBSNM) helps LANL employees identify and benefit from the mental health and substance abuse services they may need through a network of providers, programs and facilities. Use the BCBSNM Provider Finder to select an independently contracted and licensed behavioral health

  14. DOE_PREMIUM_CLASS_TRAVEL_REPORTS_FY14.pdf

    Energy Savers [EERE]

    May, 2016 DOE HQ Shuttle Bus Route and Schedule The DOE Shuttle Buses follow the same schedules between the two main Headquarters locations, Forrestal and Germantown. The buses start their routes at each Headquarters facility at the same times, see the schedule below. The subsequent stops at the other facilities are relative to the departure time of each route. Headquarters employees are reminded of the statutory provisions that authorize and limit the use of the shuttle bus service. Specific

  15. Electrochemical storage cell containing a substituted anisole or di-anisole redox shuttle additive for overcharge protection and suitable for use in liquid organic and solid polymer electrolytes

    DOE Patents [OSTI]

    Kerr, John B.; Tian, Minmin

    2000-01-01

    A electrochemical cell is described comprising an anode, a cathode, a solid polymer electrolyte, and a redox shuttle additive to protect the cell against overcharging and a redox shuttle additive to protect the cell against overcharging selected from the group consisting of: (a) a substituted anisole having the general formula (in an uncharged state): ##STR1## where R.sub.1 is selected from the group consisting of H, OCH.sub.3, OCH.sub.2 CH.sub.3, and OCH.sub.2 phenyl, and R.sub.2 is selected from the group consisting of OCH.sub.3, OCH.sub.2 CH.sub.3, OCH.sub.2 phenyl, and O.sup.- Li.sup.+ ; and (b) a di-anisole compound having the general formula (in an uncharged state): ##STR2## where R is selected from the group consisting of -OCH.sub.3 and -CH.sub.3, m is either 1 or 0, n is either 1 or 0, and X is selected from the group consisting of -OCH.sub.3 (methoxy) or its lithium salt --O.sup.- Li.sup.+. The lithium salt of the di-anisole is the preferred form of the redox shuttle additive because the shuttle anion will then initially have a single negative charge, it loses two electrons when it is oxidized at the cathode, and then moves toward the anode as a single positively charged species where it is then reduced to a single negatively charged species by gaining back two electrons.

  16. ORISE: Health Physics Training

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

    Health Physics Training Student performs an analysis during an ORAU health physics training course Training and educating a highly skilled workforce that can meet operational ...

  17. Health.PDF

    Energy Savers [EERE]

    at that time to determine if contractor employee health benefit costs were reasonable. ... its fair share of management and operating contractors' employee health benefit costs. ...

  18. ORISE: Worker Health Research

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

    Worker Health Research Worker Health Research The Oak Ridge Institute for Science and Education (ORISE) provides technical assistance to the U.S. Department of Energy (DOE) and other government agencies by performing specialized worker health research to assess the health of workers and other populations. Statistical methods, epidemiologic research and hazard assessments are core ORISE worker health research competencies. Because information technology is an integral part of the epidemiologic

  19. Occupational Health Services - HPMC Occupational Health Services

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

    exercise physiology and work conditioning, monitored care and case management, fitness for duty evaluations, health education and wellness promotion, infection control,...

  20. Characterization of MtoD from Sideroxydans lithotrophicus: a cytochrome c electron shuttle used in lithoautotrophic growth

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

    Beckwith, Christopher R.; Edwards, Marcus J.; Lawes, Matthew; Shi, Liang; Butt, Julea N.; Richardson, David J.; Clarke, Thomas A.

    2015-04-28

    The autotrophic Sideroxydans lithotrophicus ES-1 can grow by coupling the oxidation of ferrous iron to the reduction of oxygen. Soluble ferrous iron is oxidized at the surface of the cell by an MtoAB porin-cytochrome complex that functions as an electron conduit through the outer membrane. Electrons are then transported to the cytoplasmic membrane where they are used to generate proton motive force (PMF) (for ATP synthesis) and NADH for autotrophic processes such as carbon fixation. As part of the mtoAB gene cluster, S. lithotrophicus also contains the gene mtoD that is proposed to encode a cytochrome c protein. We isolatedmoreĀ Ā» mtoD from a Shewanella oneidensis expression system where the mtoD gene was expressed on a pBAD plasmid vector. Biochemical, biophysical, and crystallographic characterization of the purified MtoD revealed it as an 11 kDa monomeric protein containing a single heme. Sequence and structural alignment indicated that MtoD belonged to the class-1 cytochrome c family and had a similar fold to ferricytochrome c552 family, however the MtoD heme is bis-histidine coordinated and is substantially more exposed than the hemes of other family members. The reduction potential of the MtoD heme at pH 7 was +155 mV vs. Standard Hydrogen Electrode, which is approximately 100 mV lower than that of mitochondrial cytochrome c. Consideration of the properties of MtoD in the context of the potential respiratory partners identified from the genome suggests that MtoD could associate to multiple electron transfer partners as the primary periplasmic electron shuttle.Ā«Ā less

  1. Office of Health, Safety and Security Report to the Secretary...

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

    Energy's (DOE) Action Plan for improving its operating experience program and learning lessons from the Columbia space shuttle accident and Davis-Besse nuclear power plant event. ...

  2. Fabrication and characterization of inverted organic solar cells using shuttle cock-type metal phthalocyanine and PCBM:P3HT

    SciTech Connect (OSTI)

    Suzuki, Atsushi Furukawa, Ryo Akiyama, Tsuyoshi Oku, Takeo

    2015-02-27

    Inverted organic solar cells using shuttle cock-type phthalocyanine, semiconducting polymer and fullerenes were fabricated and characterized. Photovoltaic and optical properties of the solar cells with inverted structures were investigated by optical absorption, current density-voltage characteristics. The photovoltaic properties of the tandem organic solar cell using titanyl phthalocyanine, vanadyl phthalocyanine, poly(3-hexylthiophene) (P3HT) and [6, 6]-phenyl C{sub 61}-butyric acid methyl ester (PCBM) were improved. Effect of annealing and solvent treatment on surface morphologies of the active layer was investigated. The photovoltaic mechanisms, energy levels and band gap of active layers were discussed for improvement of the photovoltaic performance.

  3. ORISE: Health Physics Training

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

    Health Physics Training Student performs an analysis during an ORAU health physics training course Training and educating a highly skilled workforce that can meet operational commitments in the areas of radiation and health physics is an essential part of protecting your workers, the public and the environment. ORAU, the managing contractor of the Oak Ridge Institute for Science and Education, offers hands-on, laboratory-based training courses in a variety of health physics areas. Training

  4. Hawaii Department of Health Indoor and Radiological Health Branch...

    Open Energy Info (EERE)

    Indoor and Radiological Health Branch Jump to: navigation, search Name: Hawaii Department of Health Indoor and Radiological Health Branch From Open Energy Information Address: 591...

  5. Bioscience: Bioenergy, Biosecurity, and Health

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

    Bioscience: Bioenergy, Biosecurity, and Health science-innovationassetsimagesicon-science.jpg Bioscience: Bioenergy, Biosecurity, and Health Los Alamos scientists are ...

  6. ORISE: Health physics services

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

    Health physics services Nuclear power plant The Oak Ridge Institute for Science and Education (ORISE) offers comprehensive health physics services in a number of technical areas for the U.S. Department of Energy (DOE) and U.S. Nuclear Regulatory Commission (NRC), as well as other federal and state agencies. From radiological facility audits and reviews to dose modeling and technical evaluations, ORISE is nationally-recognized for its health physics support to decontamination and decommissioning

  7. ORISE: Health physics services

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

    Health physics services Nuclear power plant The Oak Ridge Institute for Science and ... Nuclear power plant Dose modeling and sssessments We perform dose modeling and assessment ...

  8. Accommodations

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

    Albuquerque Sunport Air Major airlines serve Santa Fe via the Albuquerque International Sunport, just 60 miles to the south of Santa Fe. Regular shuttle bus service and the New...

  9. Special announcement: Building 9731 shines again

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

    part of the Secret City Festival. The one-hour tours will begin and end at the Y-12 New Hope Center. A shuttle bus will take people from the American Museum of Science and Energy...

  10. CX-005686: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Shuttle Service to South Golden Road Regional Transportation District Bus StopsCX(s) Applied: A7Date: 04/29/2011Location(s): Golden, ColoradoOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office