National Library of Energy BETA

Sample records for hub closed yesterday

  1. Energy Efficient Buildings Hub

    SciTech Connect (OSTI)

    2013-04-01

    Energy Efficient Buildings HUB Lunch Presentation for the 2013 Building Technologies Office's Program Peer Review

  2. Energy Efficient Buildings Hub

    Broader source: Energy.gov [DOE]

    Energy Efficient Buildings HUB Lunch Presentation for the 2013 Building Technologies Office's Program Peer Review

  3. Hubs | Department of Energy

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

    Hubs Hubs Critical Materials Hub Critical Materials Hub How do you help ensure that American companies and entrepreneurs can access the materials they need to build and develop clean energy technologies? Read more Consortium for Advanced Simulation of Light Water Reactors Consortium for Advanced Simulation of Light Water Reactors Working to predict with confidence the safe, reliable, and economically competitive performance of nuclear reactors through science-based modeling and simulation

  4. High Impact Technology Hub

    Broader source: Energy.gov [DOE]

    The High Impact Technology Hub is a one stop shop for information associated with technology demonstrations in occupied, operational buildings. Resources posted to Hub should accelerate the selection and evaluation of technology demonstration projects and enable transparency into DOEs market stimulation and tech to market activities.

  5. DOE Energy Innovation Hubs

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

    Research » DOE Energy Innovation Hubs Basic Energy Sciences (BES) BES Home About Research Materials Sciences & Engineering (MSE) Chemical Sciences, Geosciences, and Biosciences (CSGB) Accelerator and Detector Research Research Conduct Policies DOE Energy Innovation Hubs Energy Frontier Research Centers National Nanotechnology Initiative (NNI) Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) Community Resources Contact

  6. Energy Efficient Buildings Hub

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy created the Energy Efficient Buildings Hub in Philadelphia, Pennsylvania to promote regional job creation and economic growth while also improving the energy...

  7. SolarTech: Sun Sets on Yesterday's Solar Permitting Practices...

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

    SolarTech: Sun Sets on Yesterday's Solar Permitting Practices October 1, 2012 - 3:26pm Addthis Lengthy reviews, high costs, and inconsistent procedures are a thing of the past for ...

  8. SolarHub | Open Energy Information

    Open Energy Info (EERE)

    SolarHub Screenshot References: Solar Hub Homepage1 Logo: SolarHub SolarHub is a free reference database of product specification data used by professionals in the solar...

  9. Botswana Innovation Hub | Open Energy Information

    Open Energy Info (EERE)

    Botswana Innovation Hub Jump to: navigation, search Name: Botswana Innovation Hub Address: BDC Building Fairgrounds Office Park Plot 50380, Gaborone Botswana Place: Botswana Phone...

  10. Presentation: Hubs+ Report | Department of Energy

    Energy Savers [EERE]

    Hubs+ Report Presentation: Hubs+ Report A briefing to the Secretary's Energy Advisory Board on the final report of the Task Force to Support the Evaluation of New Funding Constructs for Energy R&D in the DOE (Hubs+) delivered by the Task Force Chair, Cherry Murray, Harvard University PDF icon Hubs+ Report More Documents & Publications Report of the Hubs+ Task Force March 28, 2014 SEAB Meeting Minutes December 3, 2013 SEAB Meeting Minutes

  11. Solent Enterprise Hub | Open Energy Information

    Open Energy Info (EERE)

    Name: Solent Enterprise Hub Place: United Kingdom Sector: Services Product: General Financial & Legal Services ( Government Public sector ) References: Solent Enterprise...

  12. Reading Enterprise Hub | Open Energy Information

    Open Energy Info (EERE)

    Name: Reading Enterprise Hub Place: United Kingdom Sector: Services Product: General Financial & Legal Services ( Academic Research foundation ) References: Reading...

  13. EERE Success Story-SolarTech: Sun Sets on Yesterday's Solar Permitting

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

    Practices | Department of Energy SolarTech: Sun Sets on Yesterday's Solar Permitting Practices EERE Success Story-SolarTech: Sun Sets on Yesterday's Solar Permitting Practices October 1, 2012 - 3:26pm Addthis Lengthy reviews, high costs, and inconsistent procedures are a thing of the past for residents of San Francisco looking to install solar energy systems. San Francisco government administrators have spent the past decade working to address a range of solar market barriers. Now, they are

  14. What are the Energy Innovation Hubs? | Department of Energy

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

    are the Energy Innovation Hubs? What are the Energy Innovation Hubs? August 1, 2010 - ... approach to overcoming critical technological barriers to advances in energy technology. ...

  15. Energy Department to Launch New Energy Innovation Hub Focused...

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

    ... This will be the fourth such hub established by the Department since 2010. Other hubs include the Joint Center for Artificial Photosynthesis, which focuses on advanced research to ...

  16. Energy Department Announces Launch of Energy Innovation Hub for...

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

    ... This will be the fifth Energy Innovation Hub established by the Department since 2010. The other Energy Innovation Hubs are: The Joint Center for Artificial Photosynthesis, which ...

  17. doe energy innovation hubs | netl.doe.gov

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

    DOE Energy Innovation Hubs The U.S. Department of Energy's Energy Innovation Hubs initiative addresses research challenges with potentially high impact on our national energy...

  18. Press Conference on the Batteries and Energy Storage Hub Announcement...

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

    December 3, 2012, Videos Press Conference on the Batteries and Energy Storage Hub ... over five years to establish a new Batteries and Energy Storage Hub, the Joint Center ...

  19. Energy Innovation Hub Report Shows Philadelphia-area Building...

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

    Innovation Hub Report Shows Philadelphia-area Building Retrofits Could Support 23,500 Jobs Energy Innovation Hub Report Shows Philadelphia-area Building Retrofits Could Support ...

  20. EnergyHub | Open Energy Information

    Open Energy Info (EERE)

    Product: EnergyHub integrates in-home devices, stand-alone displays, and web-based software to provide consumers real-time information and control over their energy usage....

  1. Energy Innovation Hubs Online Q&A

    Broader source: Energy.gov [DOE]

    Energy Secretary Steven Chu hosted a live, streaming Q&A session with the directors of the Energy Innovation Hubs on March 6, 2012. The directors were asked questions regarding their teams' work...

  2. Critical Materials Hub | Department of Energy

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

    Facilities » Critical Materials Hub Critical Materials Hub Green light reflection from a low-oxygen environment 3D printer laser deposition of metal powder alloys. Photo courtesy of The Critical Materials Institute, Ames Laboratory Green light reflection from a low-oxygen environment 3D printer laser deposition of metal powder alloys. Photo courtesy of The Critical Materials Institute, Ames Laboratory Critical materials, including some rare earth elements that possess unique magnetic,

  3. Fuels From Sunlight Hub | Department of Energy

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

    Fuels From Sunlight Hub Fuels From Sunlight Hub August 1, 2010 - 4:11pm Addthis Researchers from across disciplines are working together to create energy and fuels directly from sunlight, and create a process that's economically viable. Researchers from across disciplines are working together to create energy and fuels directly from sunlight, and create a process that's economically viable. The Solar Energy-to-Fuels Conversion Challenge Designing highly efficient, non-biological, energy

  4. U.S. Energy Information Administration (EIA)

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

    The Henry Hub day-ahead price remained below 2.00 per MMBtu for the entire week, dropping to 1.82 per MMBtu on Friday before rising steadily to close the week yesterday at...

  5. Aircraft Propeller Hub Repair (Technical Report) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Aircraft Propeller Hub Repair Citation Details In-Document Search Title: Aircraft Propeller Hub Repair The team performed a literature review, conducted residual stress measurements, performed failure analysis, and demonstrated a solid state additive manufacturing repair technique on samples removed from a scrapped propeller hub. The team evaluated multiple options for hub repair that included existing metal buildup technologies that the Federal Aviation Administration (FAA)

  6. Energy Innovation Hub Directors Visit the Hill | Department of Energy

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

    Hub Directors Visit the Hill Energy Innovation Hub Directors Visit the Hill April 24, 2013 - 5:39pm Addthis Rep. Chaka Fattah (D-PA) and Acting Secretary of Energy Daniel Poneman speak during an event on Capitol Hill featuring the directors of the five energy innovation hubs. | Energy Department video. Ben Dotson Ben Dotson Former Project Coordinator for Digital Reform, Office of Public Affairs What is an Energy Innovation Hub? Modeled after the strong scientific management characteristics of

  7. Report of the Hubs+ Task Force | Department of Energy

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

    Hubs+ Task Force Report of the Hubs+ Task Force This report presents the findings and recommendations for the Secretary of Energy Advisory Board (SEAB) Task Force to Support Evaluation of the new Funding Constructs for Energy Research and Development (R&D) in the Department of Energy. The Task Force was charged with assisting the DOE in evaluating the management and early progress of these new management and funding mechanisms in the Department. PDF icon SEAB Hubs+ Report PDF icon Hubs+

  8. Wind turbine rotor hub and teeter joint

    DOE Patents [OSTI]

    Coleman, Clint; Kurth, William T.; Jankowski, Joseph

    1994-10-11

    A rotor hub is provided for coupling a wind turbine rotor blade and a shaft. The hub has a yoke with a body which is connected to the shaft, and extension portions which are connected to teeter bearing blocks, each of which has an aperture. The blocks are connected to a saddle which envelops the rotor blade by one or two shafts which pass through the apertures in the bearing blocks. The saddle and blade are separated by a rubber interface which provides for distribution of stress over a larger portion of the blade. Two teeter control mechanisms, which may include hydraulic pistons and springs, are connected to the rotor blade and to the yoke at extension portions. These control mechanisms provide end-of-stroke damping, braking, and stiffness based on the teeter angle and speed of the blade.

  9. The Department of Energy's Energy Innovation Hubs

    Energy Savers [EERE]

    U.S. Department of Energy Office of Inspector General Office of Audits and Inspections Audit Report The Department of Energy's Energy Innovation Hubs OAS-M-13-08 September 2013 Department of Energy Washington, DC 20585 September 30, 2013 MEMORANDUM FOR THE ASSISTANT SECRETARY FOR ENERGY EFFICIENCY AND RENEWABLE ENERGY ASSISTANT SECRETARY FOR NUCLEAR ENERGY ACTING DIRECTOR, OFFICE OF SCIENCE FROM: Rickey R. Hass Deputy Inspector General for Audits and Inspections Office of Inspector General

  10. Natural Gas Market Centers and Hubs: A 2003 Update

    U.S. Energy Information Administration (EIA) Indexed Site

    Market Centers and Hubs: A 2003 Update EIA Home > Natural Gas > Natural Gas Analysis Publications Natural Gas Market Centers and Hubs: A 2003 Update Printer-Friendly Version "This special report looks at the current status of market centers/hubs in today's natural gas marketplace, examining their role and their importance to natural gas shippers, marketers, pipelines, and others involved in the transportation of natural gas over the North American pipeline network. Questions or

  11. doe energy innovation hubs | netl.doe.gov

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

    DOE Energy Innovation Hubs The U.S. Department of Energy's Energy Innovation Hubs initiative addresses research challenges with potentially high impact on our national energy security that have proved the most resistant to solution by conventional research and development (R&D) management structures. Each Energy Innovation Hub focuses on a single topic, with work spanning from basic research, through engineering development, to facilitating commercialization by industry. The balance of these

  12. Energy Department Announces Launch of Energy Innovation Hub for Critical

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

    Materials Research | Department of Energy Launch of Energy Innovation Hub for Critical Materials Research Energy Department Announces Launch of Energy Innovation Hub for Critical Materials Research May 31, 2012 - 5:56pm Addthis WASHINGTON - U.S. Secretary of Energy Steven Chu today announced plans to invest up to $120 million over five years to launch a new Energy Innovation Hub, establishing a multidisciplinary and sustained effort to identify problems and develop solutions across the

  13. MHK Projects/Cornwall Wave Hub | Open Energy Information

    Open Energy Info (EERE)

    Technology *MHK TechnologiesPowerBuoy Project Timeline and Milestones *7152009 Commitment agreement signed for Wave Hub *7302010 Cable installation commences *7302011...

  14. Aircraft Propeller Hub Repair (Technical Report) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    and demonstrated a solid state additive manufacturing repair technique on samples removed ... For new hubs, a machining practice to prevent fretting with the steel drive shaft ...

  15. Department of Energy to Invest $366M in Energy Innovation Hubs

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

    Department of Energy to Invest 366M in Energy Innovation Hubs Funding Opportunity Announcement for Fuels from Sunlight Hub is Issued Secretary Chu Washington, DC U.S....

  16. Continuous integration for concurrent MOOSE framework and application development on GitHub

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

    Slaughter, Andrew E.; Peterson, John W.; Gaston, Derek R.; Permann, Cody J.; Andrs, David; Miller, Jason M.

    2015-11-20

    For the past several years, Idaho National Laboratory’s MOOSE framework team has employed modern software engineering techniques (continuous integration, joint application/framework source code repos- itories, automated regression testing, etc.) in developing closed-source multiphysics simulation software (Gaston et al., Journal of Open Research Software vol. 2, article e10, 2014). In March 2014, the MOOSE framework was released under an open source license on GitHub, significantly expanding and diversifying the pool of current active and potential future contributors on the project. Despite this recent growth, the same philosophy of concurrent framework and application development continues to guide the project’s development roadmap. Severalmore » specific practices, including techniques for managing multiple repositories, conducting automated regression testing, and implementing a cascading build process are discussed in this short paper. Furthermore, special attention is given to describing the manner in which these practices naturally synergize with the GitHub API and GitHub-specific features such as issue tracking, Pull Requests, and project forks.« less

  17. Ask Your Energy Innovation Hub Questions | Department of Energy

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

    Ask Your Energy Innovation Hub Questions April Saylor April Saylor Former Digital Outreach ... We'll be live-tweeting the Q&A from @ENERGY, and will have video of the discussion ...

  18. Natural Gas Market Centers and Hubs: A 2003 Update

    U.S. Energy Information Administration (EIA) Indexed Site

    Market Centers and Hubs: A 2003 Update Energy Information Administration - October 2003 1 This special report looks at the current status of market centers/hubs in today=s natural gas marketplace, examining their role and their importance to natural gas shippers, marketers, pipelines, and others involved in the transportation of natural gas over the North American pipeline network. Questions or comments on the contents of this article should be directed to James Tobin at james.tobin@eia.doe.gov

  19. Microfluidic hubs, systems, and methods for interface fluidic modules

    DOE Patents [OSTI]

    Bartsch, Michael S; Claudnic, Mark R; Kim, Hanyoup; Patel, Kamlesh D; Renzi, Ronald F; Van De Vreugde, James L

    2015-01-27

    Embodiments of microfluidic hubs and systems are described that may be used to connect fluidic modules. A space between surfaces may be set by fixtures described herein. In some examples a fixture may set substrate-to-substrate spacing based on a distance between registration surfaces on which the respective substrates rest. Fluidic interfaces are described, including examples where fluid conduits (e.g. capillaries) extend into the fixture to the space between surfaces. Droplets of fluid may be introduced to and/or removed from microfluidic hubs described herein, and fluid actuators may be used to move droplets within the space between surfaces. Continuous flow modules may be integrated with the hubs in some examples.

  20. Energy Innovation Hubs: Achieving Our Energy Goals with Science |

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

    Department of Energy Hubs: Achieving Our Energy Goals with Science Energy Innovation Hubs: Achieving Our Energy Goals with Science March 2, 2012 - 6:44pm Addthis Secretary Chu stops at Oak Ridge National Lab in February 2012 for a quick, nuclear-themed visit that included a tour of the Consortium for Advanced Simulation of Light Water Reactors (CASL) and a stop at the new Manufacturing Demonstration Facility (MDF). | Photo courtesy of Oak Ridge National Lab Secretary Chu stops at Oak Ridge

  1. Interface structure for hub and mass attachment in flywheel rotors

    DOE Patents [OSTI]

    Deteresa, Steven J.; Groves, Scott E.

    1998-06-02

    An interface structure for hub and mass attachment in flywheel rotors. The interface structure efficiently transmits high radial compression forces and withstands both large circumferential elongation and local stresses generated by mass-loading and hub attachments. The interface structure is comprised of high-strength fiber, such as glass and carbon, woven into an angle pattern which is about 45.degree. with respect to the rotor axis. The woven fiber is bonded by a ductile matrix material which is compatible with and adheres to the rotor material. This woven fiber is able to elongate in the circumferential direction to match the rotor growth during spinning.

  2. Interface structure for hub and mass attachment in flywheel rotors

    DOE Patents [OSTI]

    Deteresa, S.J.; Groves, S.E.

    1998-06-02

    An interface structure is described for hub and mass attachment in flywheel rotors. The interface structure efficiently transmits high radial compression forces and withstands both large circumferential elongation and local stresses generated by mass-loading and hub attachments. The interface structure is comprised of high-strength fiber, such as glass and carbon, woven into an angle pattern which is about 45{degree} with respect to the rotor axis. The woven fiber is bonded by a ductile matrix material which is compatible with and adheres to the rotor material. This woven fiber is able to elongate in the circumferential direction to match the rotor growth during spinning. 2 figs.

  3. Los Alamos expertise integral to nuclear energy innovation hub

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

    Nuclear energy innovation hub Los Alamos expertise integral to nuclear energy innovation hub The information gained through this effort will help extend the life and improve the efficiency of the existing U.S. nuclear reactor fleet and could help lead to the design of safer, longer-lasting materials in next-generation reactors. June 3, 2010 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation

  4. Press Conference on the Batteries and Energy Storage Hub Announcement:

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

    November 30, 2012 - Joint Center for Energy Storage Research December 3, 2012, Videos Press Conference on the Batteries and Energy Storage Hub Announcement: November 30, 2012 UChicago President Robert Zimmer was joined by U.S. Secretary of Energy Steven Chu on November 30, 2012, to announce that a multi-partner team led by Argonne National Laboratory was selected for an award of up to $120 million over five years to establish a new Batteries and Energy Storage Hub, the Joint Center for

  5. Natural Gas Market Centers and Hubs: A 2003 Update

    Reports and Publications (EIA)

    2003-01-01

    This special report looks at the current status of market centers/hubs in today's natural gas marketplace, examining their role and their importance to natural gas shippers, marketers, pipelines, and others involved in the transportation of natural gas over the North American pipeline network.

  6. SEMI-ANNUAL REPORTS FOR MAIN PASS ENERGY HUB, LLC - FE DKT. NO...

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

    MAIN PASS ENERGY HUB, LLC - FE DKT. NO. 12-114-LNG - ORDER 3220 SEMI-ANNUAL REPORTS FOR MAIN PASS ENERGY HUB, LLC - FE DKT. NO. 12-114-LNG - ORDER 3220 PDF icon April 2014 PDF icon ...

  7. Energy Innovation Hubs: A Home for Scientific Collaboration

    ScienceCinema (OSTI)

    Chu, Steven

    2013-05-29

    Secretary Chu will host a live, streaming Q&A session with the directors of the Energy Innovation Hubs on Tuesday, March 6, at 2:15 p.m. EST. The directors will be available for questions regarding their teams' work and the future of American energy. Ask your questions in the comments below, or submit them on Facebook, Twitter (@energy), or send an e-mail to newmedia@hq.doe.gov, prior or during the live event. Dr. Hank Foley is the director of the Greater Philadelphia Innovation Cluster for Energy-Efficient Buildings, which is pioneering new data intensive techniques for designing and operating energy efficient buildings, including advanced computer modeling. Dr. Douglas Kothe is the director of the Consortium for Advanced Simulation of Light Water Reactors, which uses powerful supercomputers to create "virtual" reactors that will help improve the safety and performance of both existing and new nuclear reactors. Dr. Nathan Lewis is the director of the Joint Center for Artificial Photosynthesis, which focuses on how to produce fuels from sunlight, water, and carbon dioxide. The Energy Innovation Hubs are major integrated research centers, with researchers from many different institutions and technical backgrounds. Each hub is focused on a specific high priority goal, rapidly accelerating scientific discoveries and shortening the path from laboratory innovation to technological development and commercial deployment of critical energy technologies. Ask your questions in the comments below, or submit them on Facebook, Twitter (@energy), or send an e-mail to newmedia@energy.gov, prior or during the live event. The Energy Innovation Hubs are major integrated research centers, with researchers from many different institutions and technical backgrounds. Each Hub is focused on a specific high priority goal, rapidly accelerating scientific discoveries and shortening the path from laboratory innovation to technological development and commercial deployment of critical energy technologies. Dr. Hank Holey is the director of the Greater Philadelphia Innovation Cluster for Energy-Efficient Buildings, which is pioneering new data intensive techniques for designing and operating energy efficient buildings, including advanced computer modeling. Dr. Douglas Kothe is the director of the Modeling and Simulation for Nuclear Reactors Hub, which uses powerful supercomputers to create "virtual" reactors that will help improve the safety and performance of both existing and new nuclear reactors. Dr. Nathan Lewis is the director of the Joint Center for Artificial Photosynthesis Hub, which focuses on how to produce biofuels from sunlight, water, and carbon dioxide.

  8. Digital microfluidic hub for automated nucleic acid sample preparation.

    SciTech Connect (OSTI)

    He, Jim; Bartsch, Michael S.; Patel, Kamlesh D.; Kittlaus, Eric A.; Remillared, Erin M.; Pezzola, Genevieve L.; Renzi, Ronald F.; Kim, Hanyoup

    2010-07-01

    We have designed, fabricated, and characterized a digital microfluidic (DMF) platform to function as a central hub for interfacing multiple lab-on-a-chip sample processing modules towards automating the preparation of clinically-derived DNA samples for ultrahigh throughput sequencing (UHTS). The platform enables plug-and-play installation of a two-plate DMF device with consistent spacing, offers flexible connectivity for transferring samples between modules, and uses an intuitive programmable interface to control droplet/electrode actuations. Additionally, the hub platform uses transparent indium-tin oxide (ITO) electrodes to allow complete top and bottom optical access to the droplets on the DMF array, providing additional flexibility for various detection schemes.

  9. EIA - Natural Gas Pipeline Network - Natural Gas Market Centers and Hubs

    U.S. Energy Information Administration (EIA) Indexed Site

    Market Centers and Hubs About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Natural Gas Market Centers and Hubs in Relation to Major Natural Gas Transportation Corridors, 2009 Natural Gas Market Centers and Hubs in Relation to Major Natural Gas Transportation Corridors, 2009 DCP = DCP Midstream Partners LP; EPGT = Enterprise Products Texas Pipeline Company. Note: The relative widths of the various transportation corridors are based

  10. Department of Energy to Invest $366M in Energy Innovation Hubs...

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

    Their achievements-from the transistor to the information theory that makes modern ... This Hub is intended to produce a multi-physics computational environment that will be ...

  11. Energy Department to Launch New Energy Innovation Hub Focused on Advanced

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

    Batteries and Energy Storage | Department of Energy to Launch New Energy Innovation Hub Focused on Advanced Batteries and Energy Storage Energy Department to Launch New Energy Innovation Hub Focused on Advanced Batteries and Energy Storage February 7, 2012 - 9:32am Addthis Washington, D.C. - U.S. Secretary of Energy Steven Chu announced today plans to launch a new Energy Innovation Hub for advanced research on batteries and energy storage with an investment of up to $120 million over five

  12. Energy Department to Provide $75 Million for 'Fuels from Sunlight' Hub

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

    | Department of Energy to Provide $75 Million for 'Fuels from Sunlight' Hub Energy Department to Provide $75 Million for 'Fuels from Sunlight' Hub April 28, 2015 - 4:46pm Addthis News Media Contact (202) 586-4940 DOENews@hq.doe.gov Center Aims to Produce Liquid Transportation Fuels from Sunlight WASHINGTON - The U.S. Department of Energy today announced $75 million in funding to renew the Joint Center for Artificial Photosynthesis (JCAP), a DOE Energy Innovation Hub originally established in

  13. Natural Gas Weekly Update

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

    decreases during yesterday's trading. For the week (Wednesday-Wednesday), prices at the Henry Hub increased 62 cents, or about 10 percent, to 7.10 per MMBtu. Yesterday (March 15),...

  14. Welcome and Overview of Workshop and Energy Innovation Hubs Video (Text Version)

    Broader source: Energy.gov [DOE]

    This is a text version of the welcome and overview of the workshop and energy innovation hubs video presented at the Critical Materials Workshop, held on April 3, 2012 in Arlington, Virginia.

  15. Department of Energy to Invest $366M in Energy Innovation Hubs...

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

    possible-are evidence that we can build creative, highly-integrated research teams that ... risky for industry to fund. 3) The third novel funding model, Energy Innovation Hubs, ...

  16. Department of Energy to Invest $366M in Energy Innovation Hubs...

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

    possible-are evidence that we can build creative, highly-integrated research teams that ... The three DOE Energy Innovation Hubs will focus on: production of fuels directly from ...

  17. Energy Innovation Hub Report Shows Philadelphia-area Building Retrofits Could Support 23,500 Jobs

    Broader source: Energy.gov [DOE]

    Recent reports commissioned by the Energy Efficiency Buildings Hub highlight the potential of a massive retrofit project aimed to reduce the area's building energy use by 50 percent in the next 10 years.

  18. Surface--micromachined rotatable member having a low-contact-area hub

    DOE Patents [OSTI]

    Rodgers, M. Steven; Sniegowski, Jeffry J.

    2002-01-01

    A surface-micromachined rotatable member formed on a substrate and a method for manufacturing thereof are disclosed. The surface-micromachined rotatable member, which can be a gear or a rotary stage, has a central hub, and an annulus connected to the central hub by an overarching bridge. The hub includes a stationary axle support attached to the substrate and surrounding an axle. The axle is retained within the axle support with an air-gap spacing therebetween of generally 0.3 .mu.m or less. The rotatable member can be formed by alternately depositing and patterning layers of a semiconductor (e.g. polysilicon or a silicon-germanium alloy) and a sacrificial material and then removing the sacrificial material, at least in part. The present invention has applications for forming micromechanical or microelectromechanical devices requiring lower actuation forces, and providing improved reliability.

  19. Surface-micromachined rotatable member having a low-contact-area hub

    DOE Patents [OSTI]

    Rodgers, M. Steven; Sniegowski, Jeffry J.; Krygowski, Thomas W.

    2003-11-18

    A surface-micromachined rotatable member formed on a substrate and a method for manufacturing thereof are disclosed. The surface-micromachined rotatable member, which can be a gear or a rotary stage, has a central hub, and an annulus connected to the central hub by an overarching bridge. The hub includes a stationary axle support attached to the substrate and surrounding an axle. The axle is retained within the axle support with an air-gap spacing therebetween of generally 0.3 .mu.m or less. The rotatable member can be formed by alternately depositing and patterning layers of a semiconductor (e.g. polysilicon or a silicon-germanium alloy) and a sacrificial material and then removing the sacrificial material, at least in part. The present invention has applications for forming micromechanical or microelectromechanical devices requiring lower actuation forces, and providing improved reliability.

  20. California Team to Receive up to $122 Million for Energy Innovation Hub to

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

    Develop Method to Produce Fuels from Sunlight | Department of Energy Team to Receive up to $122 Million for Energy Innovation Hub to Develop Method to Produce Fuels from Sunlight California Team to Receive up to $122 Million for Energy Innovation Hub to Develop Method to Produce Fuels from Sunlight July 22, 2010 - 12:00am Addthis Washington, D.C. - As part of a broad effort to achieve breakthrough innovations in energy production, U.S. Deputy Secretary of Energy Daniel Poneman today

  1. ,"Weekly Henry Hub Natural Gas Spot Price (Dollars per Million Btu)"

    U.S. Energy Information Administration (EIA) Indexed Site

    Henry Hub Natural Gas Spot Price (Dollars per Million Btu)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Weekly Henry Hub Natural Gas Spot Price (Dollars per Million Btu)",1,"Weekly","5/20/2016" ,"Release Date:","5/25/2016" ,"Next Release Date:","6/2/2016"

  2. Energy Innovation Hubs and the Quest to Turn Sunlight Into Fuel |

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

    Department of Energy Innovation Hubs and the Quest to Turn Sunlight Into Fuel Energy Innovation Hubs and the Quest to Turn Sunlight Into Fuel July 22, 2010 - 12:01pm Addthis Daniel B. Poneman Daniel B. Poneman Former Deputy Secretary of Energy From the Manhattan Project to AT&T's Bell Laboratories, we've seen the transformative results that can happen when we bring together some of our best scientific minds. American innovation has solved some of the world's toughest problems and made

  3. National Geothermal Data System Hub Deployment Timeline (Appendix E-1-d)

    SciTech Connect (OSTI)

    Caudill, Christy

    2015-12-20

    Excel spreadsheet describing activity, spending, and development for the four data hubs (Arizona Geoloical Survey, Kentucky Geological Survey, Illinois Geological Survey, and Nevada Bureau of Mines and Geology) serving data for the National Geothermal Data System under the State Contributions to the National Geothermal Data System Project.

  4. Establishment of a Hub for the Light Water Reactor Sustainability Online Monitoring Community

    SciTech Connect (OSTI)

    Nancy J. Lybeck; Magdy S. Tawfik; Binh T. Pham

    2011-08-01

    Implementation of online monitoring and prognostics in existing U.S. nuclear power plants will involve coordinating the efforts of national laboratories, utilities, universities, and private companies. Internet-based collaborative work environments provide necessary communication tools to facilitate interaction between geographically diverse participants. Available technologies were considered, and a collaborative workspace was established at INL as a hub for the light water reactor sustainability online monitoring community.

  5. Energy Department Announces Five Year Renewal of Funding for First Energy Innovation Hub

    Broader source: Energy.gov [DOE]

    – In support of the President’s call during his State of the Union Address to advance an all-of-the-above energy strategy, the U.S. Department of Energy announced today it would renew funding, subject to congressional appropriations, for the Consortium for the Advanced Simulation of Light Water Reactors (CASL), an Energy Innovation Hub established in 2010 to develop advanced computing capabilities that serve as a virtual version of existing, operating nuclear reactors.

  6. ,"Henry Hub Gulf Coast Natural Gas Spot Price ($/MMBTU)"

    U.S. Energy Information Administration (EIA) Indexed Site

    Gulf Coast Natural Gas Spot Price ($/MMBTU)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Henry Hub Gulf Coast Natural Gas Spot Price ($/MMBTU)",1,"Daily","9/16/2013" ,"Release Date:","9/18/2013" ,"Next Release Date:","9/25/2013" ,"Excel File

  7. ,"Henry Hub Natural Gas Spot Price (Dollars per Million Btu)"

    U.S. Energy Information Administration (EIA) Indexed Site

    Annual",2015 ,"Release Date:","5/25/2016" ,"Next Release Date:","6/2/2016" ,"Excel File Name:","rngwhhda.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/rngwhhda.htm" ,"Source:" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"5/25/2016 12:07:41 PM" "Back to Contents","Data 1: Henry Hub Natural Gas Spot Price

  8. ,"Henry Hub Natural Gas Spot Price (Dollars per Million Btu)"

    U.S. Energy Information Administration (EIA) Indexed Site

    Monthly","4/2016" ,"Release Date:","5/25/2016" ,"Next Release Date:","6/2/2016" ,"Excel File Name:","rngwhhdm.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/rngwhhdm.htm" ,"Source:" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"5/25/2016 12:07:43 PM" "Back to Contents","Data 1: Henry Hub Natural

  9. Joint Center for Artificial Photosynthesis (JCAP): DOE's Solar Fuels Energy Innovation Hub (2011 EFRC Summit)

    ScienceCinema (OSTI)

    Lewis, Nate (Director, Joint Center for Artificial Photosynthesis and Professor at Caltech)

    2012-03-14

    The Joint Center for Artificial Photosynthesis (JCAP) is a DOE Energy Innovation Hub focused on fuels from sunlight. JCAP's Director, Nate Lewis, spoke at the 2011 EFRC Summit about what JCAP is and how it is partnering with the EFRC community to accelerate the progress towards new solar fuels. The 2011 EFRC Summit and Forum brought together the EFRC community and science and policy leaders from universities, national laboratories, industry and government to discuss "Science for our Nation's Energy Future." In August 2009, the Office of Science established 46 Energy Frontier Research Centers. The EFRCs are collaborative research efforts intended to accelerate high-risk, high-reward fundamental research, the scientific basis for transformative energy technologies of the future. These Centers involve universities, national laboratories, nonprofit organizations, and for-profit firms, singly or in partnerships, selected by scientific peer review. They are funded at $2 to $5 million per year for a total planned DOE commitment of $777 million over the initial five-year award period, pending Congressional appropriations. These integrated, multi-investigator Centers are conducting fundamental research focusing on one or more of several ?grand challenges? and use-inspired ?basic research needs? recently identified in major strategic planning efforts by the scientific community. The purpose of the EFRCs is to integrate the talents and expertise of leading scientists in a setting designed to accelerate research that transforms the future of energy and the environment.

  10. A Multi-Objective, Hub-and-Spoke Supply Chain Design Model for Densified Biomass

    SciTech Connect (OSTI)

    Jacob J. Jacobson; Md. S. Roni; Kara G. Cafferty; Sandra D. Eksioglu

    2014-06-01

    In this paper we propose a model to design the supply chain for densified biomass. Rail is typically used for longhaul, high-volume shipment of densified biomass. This is the reason why a hub-and-spoke network structure is used to model this supply chain. The model is formulated as a multi-objective, mixed-integer programing problem under economic, environmental, and social criteria. The goal is to identify the feasibility of meeting the Renewable Fuel Standard (RFS) by using biomass for production of cellulosic ethanol. The focus is not just on the costs associated with meeting these standards, but also exploring the social and environmental benefits that biomass production and processing offers by creating new jobs and reducing greenhouse gas (GHG) emissions. We develop an augmented ?-constraint method to find the exact Pareto solution to this optimization problem. We develop a case study using data from the Mid-West. The model identifies the number, capacity and location of biorefineries needed to make use of the biomass available in the region. The model estimates the delivery cost of cellulosic ethanol under different scenario, the number new jobs created and the GHG emission reductions in the supply chain.

  11. A Multi-Objective, Hub-and-Spoke Supply Chain Design Model For Densified Biomass

    SciTech Connect (OSTI)

    Md S. Roni; Sandra Eksioglu; Kara G. Cafferty

    2014-06-01

    In this paper we propose a model to design the supply chain for densified biomass. Rail is typically used for long-haul, high-volume shipment of densified biomass. This is the reason why a hub-and-spoke network structure is used to model this supply chain. The model is formulated as a multi-objective, mixed-integer programing problem under economic, environmental, and social criteria. The goal is to identify the feasibility of meeting the Renewable Fuel Standard (RFS) by using biomass for production of cellulosic ethanol. The focus in not just on the costs associated with meeting these standards, but also exploring the social and environmental benefits that biomass production and processing offers by creating new jobs and reducing greenhouse gas (GHG) emissions. We develop an augmented ?-constraint method to find the exact Pareto solution to this optimization problem. We develop a case study using data from the Mid-West. The model identifies the number, capacity and location of biorefineries needed to make use of the biomass available in the region. The model estimates the delivery cost of cellulosic ethanol under different scenario, the number new jobs created and the GHG emission reductions in the supply chain.

  12. Dehumidification -- Closed loop systems

    SciTech Connect (OSTI)

    Wyatt, C.H.; Crowe, A.R.

    1996-05-01

    Dehumidification is the removal of water from the air. Dehumidification equipment treats the ambient air before it is introduced to the enclosure. A closed loop system is one that theoretically routes all the air exiting an enclosure through the appropriate filter media and treatment equipment and then returns it to the enclosure. By establishing a closed loop system, the ``treated`` air is continuously processed, which improves the efficiency of this operation. The generic types of dehumidification equipment and their application in a closed loop system will be presented. This article will deal solely with the use of dehumidification and other related equipment used to control the environment within the work enclosure.

  13. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    seemed sufficient to avoid the price declines. The NYMEX futures contract for June delivery at the Henry Hub expired yesterday (May 29) at 3.42 per MMBtu. The spot price for...

  14. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    demand for gas, which spurred the price hikes. The NYMEX futures contract for July delivery at the Henry Hub expired yesterday (June 26) at 3.278 per MMBtu, falling over 17...

  15. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    in trading yesterday (June 11) in response to moderating temperatures. Prices at the Henry Hub increased 32 cents per million Btu (MMBtu), or about 3 percent, to 12.49 per...

  16. Natural Gas Weekly Update

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

    locations in the Lower 48 States. For the week (Wednesday-Wednesday), prices at the Henry Hub decreased 24 cents or about 4 percent to 6.05 per MMBtu. Yesterday (June 30), the...

  17. Natural Gas Weekly Update

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

    48 States during this week (Wednesday-Wednesday, November 24 to December 1). At the Henry Hub, the spot gas price gained 1.82 per MMBtu on the week to trade at 6.77 yesterday...

  18. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    demand ebbed during the report week, prices declined across the lower 48 States. The Henry Hub spot price ended trading yesterday, March 24, at 4.02 per million Btu (MMBtu), a...

  19. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    to the effects of Hurricane Ivan. For the week (Wednesday-Wednesday), prices at the Henry Hub increased 43 cents, or about 8 percent, to 5.59 per MMBtu. Yesterday (September...

  20. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    and the approaching Hurricane Rita. For the week (Wednesday-Wednesday), prices at the Henry Hub increased 3.45, or about 32 percent, to 14.25 per MMBtu. Yesterday (September...

  1. Natural Gas Weekly Update

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

    in Northeast prices to highs for the season. For the week (Wednesday-Wednesday), the Henry Hub spot price gained 0.13 per MMBtu to an average price of 3.04 yesterday (July...

  2. Natural Gas Weekly Update

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

    locations in the Lower 48 States. For the week (Wednesday-Wednesday), prices at the Henry Hub declined 86 cents, or about 11 percent, to 7.26 per MMBtu. Yesterday (November...

  3. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    in trading yesterday (June 11) in response to moderating temperatures. Prices at the Henry Hub increased 32 cents per million Btu (MMBtu), or about 3 percent, to 12.49 per...

  4. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update (EIA)

    locations in the Lower 48 States. For the week (Wednesday-Wednesday), prices at the Henry Hub edged up 1 cent, to 7.40 per MMBtu. Yesterday (June 22), the price of the NYMEX...

  5. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    of an early arrival of winter. For the week (Wednesday-Wednesday), prices at the Henry Hub increased 64 cents, or about 11 percent, to 6.23 per MMBtu. Yesterday (September...

  6. Natural Gas Weekly Update

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

    locations in the Lower 48 States. For the week (Wednesday-Wednesday), prices at the Henry Hub increased by about 14 percent to 6.71 per MMBtu. Yesterday (July 26), the price...

  7. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    prices showed modest gains for the week (Wednesday to Wednesday, July 30-August 6). The Henry Hub spot price gained a nickel on the week, ending trading yesterday (Wednesday,...

  8. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    (Wednesday-Wednesday), prices at the Henry Hub were virtually unchanged, climbing 1 cent, to 7.11 per MMBtu. Yesterday (April 27), the price of the NYMEX futures contract for...

  9. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    (Wednesday-Wednesday), prices at the Henry Hub were virtually unchanged, climbing 1 cent, to 7.11 per MMBtu. Yesterday (April 27), the price of the NYMEX futures contract for...

  10. Analytical Formulation for Sizing and Estimating the Dimensions and Weight of Wind Turbine Hub and Drivetrain Components

    SciTech Connect (OSTI)

    Guo, Y.; Parsons, T.; King, R.; Dykes, K.; Veers, P.

    2015-06-09

    This report summarizes the theory, verification, and validation of a new sizing tool for wind turbine drivetrain components, the Drivetrain Systems Engineering (DriveSE) tool. DriveSE calculates the dimensions and mass properties of the hub, main shaft, main bearing(s), gearbox, bedplate, transformer if up-tower, and yaw system. The level of fi¬ delity for each component varies depending on whether semiempirical parametric or physics-based models are used. The physics-based models have internal iteration schemes based on system constraints and design criteria. Every model is validated against available industry data or finite-element analysis. The verification and validation results show that the models reasonably capture primary drivers for the sizing and design of major drivetrain components.

  11. Preparation of Nucleic Acid Libraries for Personalized Sequencing Systems Using an Integrated Microfluidic Hub Technology (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)

    ScienceCinema (OSTI)

    Patel, Kamlesh D [Ken]; SNL,

    2013-01-25

    Kamlesh (Ken) Patel from Sandia National Laboratories (Livermore, California) presents "Preparation of Nucleic Acid Libraries for Personalized Sequencing Systems Using an Integrated Microfluidic Hub Technology " at the 7th Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting held in June, 2012 in Santa Fe, NM.

  12. Museum Closed for Thanksgiving Holiday

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

    Museum Closed for Thanksgiving Holiday Museum Closed for Thanksgiving Holiday WHEN: Nov 26, 2015 12:00 AM - 11:59 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM...

  13. Museum Closed for Christmas Holiday

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

    Museum Closed for Christmas Holiday Museum Closed for Christmas Holiday WHEN: Dec 25, 2015 12:00 AM - 11:59 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544, USA CATEGORY: Bradbury INTERNAL: Calendar Login Museum Closed for Christmas Holiday Event Description The Bradbury Science Museum will be CLOSED for the Christmas holiday. The Bradbury Science Museum is open to the public every day except for Thanksgiving Day, Christmas Day and New Year's Day. Admission is always

  14. Museum Closed for Thanksgiving Holiday

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

    Museum Closed for Thanksgiving Holiday Museum Closed for Thanksgiving Holiday WHEN: Nov 26, 2015 12:00 AM - 11:59 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544 USA CATEGORY: Bradbury INTERNAL: Calendar Login Museum Closed for Thanksgiving Holiday Event Description The museum will be CLOSED for the Thanksgiving holiday. The Bradbury Science Museum is open to the public every day except for Thanksgiving Day, Christmas Day and New Year's Day. Admission is always free.

  15. Closed Solicitations | Department of Energy

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

    Closed Solicitations Closed Solicitations Office Solicitation Title Open Date Close Date Manufacturing Funding Opportunity: Next Generation Electric Machines: Megawatt Class Motors The Advanced Manufacturing Office of the Office of Energy Efficiency and Renewable Energy 3/19/15 6/3/15 Manufacturing Notice of Intent (NOI): Clean Energy Manufacturing Innovation Institute on Smart Manufacturing: Advanced Sensors, Controls, Platforms and Modeling for Manufacturing The Advanced Manufacturing Office

  16. Evaluation of WRF predicted near hub-height winds and ramp events over a Pacific Northwest site with complex terrain

    SciTech Connect (OSTI)

    Yang, Qing; Berg, Larry K.; Pekour, Mikhail S.; Fast, Jerome D.; Newsom, Rob K.; Stoelinga, Mark; Finley, Cathy

    2013-08-16

    The WRF model version 3.3 is used to simulate near hub-height winds and power ramps utilizing three commonly used planetary boundary-layer (PBL) schemes: Mellor-Yamada-Janji? (MYJ), University of Washington (UW), and Yonsei University (YSU). The predicted winds have small mean biases compared with observations. Power ramps and step changes (changes within an hour) consistently show that the UW scheme performed better in predicting up ramps under stable conditions with higher prediction accuracy and capture rates. Both YSU and UW scheme show good performance predicting up- and down- ramps under unstable conditions with YSU being slightly better for ramp durations longer than an hour. MYJ is the most successful simulating down-ramps under stable conditions. The high wind speed and large shear associated with low-level jets are frequently associated with power ramps, and the biases in predicted low-level jet explain some of the shown differences in ramp predictions among different PBL schemes. Low-level jets were observed as low as ~200 m in altitude over the Columbia Basin Wind Energy Study (CBWES) site, located in an area of complex terrain. The shear, low-level peak wind speeds, as well as the height of maximum wind speed are not well predicted. Model simulations with 3 PBL schemes show the largest variability among them under stable conditions.

  17. MESSAGE: WIA W/O CLOSING REF CLOSING REF

    Office of Legacy Management (LM)

    MESSAGE: WIA W/O CLOSING REF CLOSING REF _ CONSTRUCTION COMPL DATE J. King SAIC J. Waddell SAIC R. Wright SAIC T. Gangwer SAIC M. Khan SAIC T. Patterson SAIC R. Tucker SAIC C.Helie SAIC K. Renfro SAIC S. Heptinstall SAIC PLEASE RETURN TO PDCC FOR CORRECTIONS MGMT. SYSTEMS: PROGRAM ADMIN.: DEPUTY PROGRAM MGR: PROJECT MANAGER: () I PROGRAM MANAGER: I I ANL: AJ. Dvorak ANL A Geisler ANL G. Maraman ANL D. Dunning ANL J. Wing BNI DIRECTOR. FSRD: L Price FSRD DEP. DIRECTOR. FSRD: W.Seay FSRD SITE

  18. Window-closing safety system

    DOE Patents [OSTI]

    McEwan, Thomas E.

    1997-01-01

    A safety device includes a wire loop embedded in the glass of a passenger car window and routed near the closing leading-edge of the window. The wire loop carries microwave pulses around the loop to and from a transceiver with separate output and input ports. An evanescent field only and inch or two in radius is created along the wire loop by the pulses. Just about any object coming within the evanescent field will dramatically reduce the energy of the microwave pulses received back by the transceiver. Such a loss in energy is interpreted as a closing area blockage, and electrical interlocks are provided to halt or reverse a power window motor that is actively trying to close the window.

  19. Window-closing safety system

    DOE Patents [OSTI]

    McEwan, T.E.

    1997-08-26

    A safety device includes a wire loop embedded in the glass of a passenger car window and routed near the closing leading-edge of the window. The wire loop carries microwave pulses around the loop to and from a transceiver with separate output and input ports. An evanescent field only an inch or two in radius is created along the wire loop by the pulses. Just about any object coming within the evanescent field will dramatically reduce the energy of the microwave pulses received back by the transceiver. Such a loss in energy is interpreted as a closing area blockage, and electrical interlocks are provided to halt or reverse a power window motor that is actively trying to close the window. 5 figs.

  20. Energy Efficient Buildings Hub

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

    ... Industrial Development Corporation Princeton University Project Based Learning, Inc. ... Diagnostics (Subtask 4.3) Lighting Human-Machine Interface (Subtask 4.4) Power Flow ...

  1. Solar Data Hub (Presentation)

    SciTech Connect (OSTI)

    Orwig, K.

    2011-04-01

    As power grid integration of renewables becomes ever more important and detailed, the need for a centralized place for solar-related resource data is needed. This presentation describes such a place and website.

  2. Hub Overview | JCESR

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

    sources onto the grid as well as broader applications of energy storage to enhance grid reliability. ... of materials architectures and structure in energy storage charge transfer ...

  3. Critical Materials Hub

    Broader source: Energy.gov [DOE]

    Critical materials, including some rare earth elements that possess unique magnetic, catalytic, and luminescent properties, are key resources needed to manufacture products for the clean energy economy. These materials are so critical to the technologies that enable wind turbines, solar panels, electric vehicles, and energy-efficient lighting that DOE's 2010 and 2011 Critical Materials Strategy reported that supply challenges for five rare earth metals—dysprosium, neodymium, terbium, europium, and yttrium—could affect clean energy technology deployment in the coming years.1, 2

  4. Energy Efficient Buildings Hub

    Broader source: Energy.gov [DOE]

    Science and industry work together to improve energy efficiency and reduce carbon emissions of both new and existing buildings while also stimulating private investment and quality job creation.

  5. COMPACT HEAT EXCHANGERS FOR CONDENSATION APPLICATIONS: YESTERDAY...

    Office of Scientific and Technical Information (OSTI)

    ... Some of * Work supportedby the U. S. Departmentof Energy, AssistantSecretaryfor Energy Efficiencyand Renewable Energy,Office of Industrial Technology,under contract ...

  6. Closed inductively coupled plasma cell

    DOE Patents [OSTI]

    Manning, T.J.; Palmer, B.A.; Hof, D.E.

    1990-11-06

    A closed inductively coupled plasma cell generates a relatively high power, low noise plasma for use in spectroscopic studies is disclosed. A variety of gases can be selected to form the plasma to minimize spectroscopic interference and to provide a electron density and temperature range for the sample to be analyzed. Grounded conductors are placed at the tube ends and axially displaced from the inductive coil, whereby the resulting electromagnetic field acts to elongate the plasma in the tube. Sample materials can be injected in the plasma to be excited for spectroscopy. 1 fig.

  7. Closed inductively coupled plasma cell

    DOE Patents [OSTI]

    Manning, Thomas J.; Palmer, Byron A.; Hof, Douglas E.

    1990-01-01

    A closed inductively coupled plasma cell generates a relatively high power, low noise plasma for use in spectroscopic studies. A variety of gases can be selected to form the plasma to minimize spectroscopic interference and to provide a electron density and temperature range for the sample to be analyzed. Grounded conductors are placed at the tube ends and axially displaced from the inductive coil, whereby the resulting electromagnetic field acts to elongate the plasma in the tube. Sample materials can be injected in the plasma to be excited for spectroscopy.

  8. Thermal Analysis of Closed Systems

    Energy Science and Technology Software Center (OSTI)

    1987-10-01

    TAP-LOOP is a finite-difference program designed for steady-state and transient thermal analysis of recirculating fluid loops and associated heat transfer equipment; however, it is not limited to loop analysis. TAP-LOOP was developed to perform scoping and conceptual design analyses for closed test loops in the Fast Flux Test Facility (FFTF), but it can handle a variety of problems which can be described in terms of potentials, sources, sinks, and storage including, in addition to heatmore » transfer problems, studies of potential fluid flow, electrical networks, and stress analysis.« less

  9. Closed cell metal foam method

    DOE Patents [OSTI]

    Patten, James W.

    1978-01-01

    Foamed metals and metal alloys which have a closed cellular structure are prepared by heating a metal body containing entrapped inert gas uniformly distributed throughout to a temperature above the melting point of the metal and maintaining the body at this temperature a period of time sufficient to permit the entrapped gas to expand, forming individual cells within the molten metal, thus expanding and foaming the molten metal. After cell formation has reached the desired amount, the foamed molten metal body is cooled to below the melting temperature of the metal. The void area or density of the foamed metal is controlled by predetermining the amount of inert gas entrapped in the metal body and by the period of time the metal body is maintained in the molten state. This method is useful for preparing foamed metals and metal alloys from any metal or other material of which a body containing entrapped inert gas can be prepared.

  10. Closed loop steam cooled airfoil

    DOE Patents [OSTI]

    Widrig, Scott M.; Rudolph, Ronald J.; Wagner, Gregg P.

    2006-04-18

    An airfoil, a method of manufacturing an airfoil, and a system for cooling an airfoil is provided. The cooling system can be used with an airfoil located in the first stages of a combustion turbine within a combined cycle power generation plant and involves flowing closed loop steam through a pin array set within an airfoil. The airfoil can comprise a cavity having a cooling chamber bounded by an interior wall and an exterior wall so that steam can enter the cavity, pass through the pin array, and then return to the cavity to thereby cool the airfoil. The method of manufacturing an airfoil can include a type of lost wax investment casting process in which a pin array is cast into an airfoil to form a cooling chamber.

  11. SmartGrid: Quarterly Data Summaries from the Data Hub and SmartGrid Project Information (from OpenEI and SmartGrid.gov)

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

    Both OpenEI and SmartGrid.gov are DOE portals to a wealth of information about the federal initiatives that support the development of the technologies, policies and projects transforming the electric power industry. Projects funded through the U.S. Recovery Act are organized by type and pinned to an interactive map at http://en.openei.org/wiki/Gateway:Smart_Grid. Each project title links to more detailed information. The Quarterly Data Summaries from the Data Hub at SmartGrid.gov are also available on OpenEI at http://en.openei.org/datasets/node/928. In addition, the SmartGrid Information Center contains documents and reports that can be searched or browsed. Smart Grid Resources introduces international SmartGrid programs and sites, while OpenEI encourages users to add SmartGrid information to the repository.

  12. Closed Gap Enzen | Open Energy Information

    Open Energy Info (EERE)

    search Name: Closed Gap-Enzen Place: Bangalore, India Zip: 560 052 Product: Formed as a joint venture, Closed Gap-Enzen provides a new integrated meter enabling seamless customer...

  13. Tokamak Fusion Test Reactor (TFTR) Closing

    SciTech Connect (OSTI)

    2015-08-05

    Closing remarks are provided in honor of the scientists whom worked diligently on the Tokamak Fusion Test Reactor (TFTR) experiment.

  14. Workplace Charging Challenge Summit 2014: Closing Plenary

    Broader source: Energy.gov [DOE]

    The Closing Plenary summarizes takeaways from the Summit and highlights partners who fulfilled all of the voluntary requirements of the Challenge.

  15. Museum Closed for New Year's Holiday

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

    Museum Closed for New Year's Holiday Museum Closed for New Year's Holiday WHEN: Jan 01, 2016 12:00 AM - 11:59 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544, USA CATEGORY: Bradbury INTERNAL: Calendar Login Museum Closed for New Year's Holiday Event Description The Bradbury Science Museum will be CLOSED for the New Year's holiday. The Bradbury Science Museum is open to the public every day except for Thanksgiving Day, Christmas Day and New Year's Day. Admission is always

  16. Automatically closing swing gate closure assembly

    DOE Patents [OSTI]

    Chang, Shih-Chih; Schuck, William J.; Gilmore, Richard F.

    1988-01-01

    A swing gate closure assembly for nuclear reactor tipoff assembly wherein the swing gate is cammed open by a fuel element or spacer but is reliably closed at a desired closing rate primarily by hydraulic forces in the absence of a fuel charge.

  17. Gas mixtures for spark gap closing switches

    DOE Patents [OSTI]

    Christophorou, Loucas G.; McCorkle, Dennis L.; Hunter, Scott R.

    1988-01-01

    Gas mixtures for use in spark gap closing switches comprised of fluorocarbons and low molecular weight, inert buffer gases. To this can be added a third gas having a low ionization potential relative to the buffer gas. The gas mixtures presented possess properties that optimized the efficiency spark gap closing switches.

  18. Gas mixtures for spark gap closing switches

    DOE Patents [OSTI]

    Christophorou, L.G.; McCorkle, D.L.; Hunter, S.R.

    1987-02-20

    Gas mixtures for use in spark gap closing switches comprised of fluorocarbons and low molecular weight, inert buffer gases. To this can be added a third gas having a low ionization potential relative to the buffer gas. The gas mixtures presented possess properties that optimized the efficiency spark gap closing switches. 6 figs.

  19. Collaborative Lubricating Oil Study on Emissions (CLOSE Project...

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

    CLOSE Project) Collaborative Lubricating Oil Study on Emissions (CLOSE Project) 2011 DOE ... More Documents & Publications Collaborative Lubricating Oil Study on Emissions (CLOSE ...

  20. The pomeron in closed bosonic string theory

    SciTech Connect (OSTI)

    Fazio, A. R.

    2010-12-22

    We compute the couplings of the pomeron to the first few mass levels of closed bosonic string states in flat space. We recognize the deviation from the linearity of the Regge trajectories in a five dimensional anti De Sitter background.

  1. DOE Closes Investigation of Whirlpool's Maytag Refrigerator

    Broader source: Energy.gov [DOE]

    The Department of Energy has closed its investigation into the energy efficiency of Whirlpool's Maytag refrigerator-freezer model "MSD2578VE." The Department opened this investigation and requested...

  2. DOE Closes Investigation of Arcelik's Blomberg Refrigerator

    Broader source: Energy.gov [DOE]

    The Department of Energy has closed its investigation into the energy efficiency of Arcelik's Blomberg refrigerator-freezer model # BRFB1450. The Department opened this investigation based on a...

  3. DOE Closes Investigation of ASKO Dishwasher

    Broader source: Energy.gov [DOE]

    The Department of Energy has closed its investigation into the energy efficiency of ASKO Appliance Inc.'s dishwasher model D5122XXLB. After testing this model, the Department has found the model to...

  4. NREL Visitors Center Closing Temporarily for Remodeling

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

    Visitors Center Closing Temporarily for Remodeling Media may contact: George Douglas, 303-275-4096 email: George Douglas Golden, Colo., Sept. 6, 2000 - The Visitors Center at the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) will be closed Friday, Sept. 8 through Friday, Sept. 22 for the installation of new floor tile and carpet. Visitors Center staff expects to re-open the building for normal operation on Monday, Sept. 25. Contact the Visitors Center volunteer

  5. High Impact Technology Hub- Results

    Broader source: Energy.gov [DOE]

    Highlights, outcomes and activities to support the adoption of High Impact Technologies. Technology Highlights preview early results from current technology demonstrations. Case Studies overview...

  6. Signed Quality Assurance Hub Memo

    Office of Environmental Management (EM)

    ... Schassburger, Director, Oakland Projects Office Bryan Bower, Director, West Valley Demonstration Project Office (WVDP) Donald Metzler, Director, Moab Federal Project Office (MOAB)

  7. Augmented Reality for Close Quarters Combat

    ScienceCinema (OSTI)

    None

    2014-06-23

    Sandia National Laboratories has developed a state-of-the-art augmented reality training system for close-quarters combat (CQB). This system uses a wearable augmented reality system to place the user in a real environment while engaging enemy combatants in virtual space (Boston Dynamics DI-Guy). Umbra modeling and simulation environment is used to integrate and control the AR system.

  8. Close encounters of three black holes

    SciTech Connect (OSTI)

    Campanelli, Manuela; Lousto, Carlos O.; Zlochower, Yosef

    2008-05-15

    We present the first fully relativistic long-term numerical evolutions of three equal-mass black holes in a system consisting of a third black hole in a close orbit about a black-hole binary. These close-three-black-hole systems have very different merger dynamics from black-hole binaries; displaying complex trajectories, a redistribution of energy that can impart substantial kicks to one of the holes, distinctive waveforms, and suppression of the emitted gravitational radiation. In one configuration the binary is quickly disrupted and the individual holes follow complicated trajectories and merge with the third hole in rapid succession, while in another, the binary completes a half-orbit before the initial merger of one of the members with the third black hole, and the resulting two-black-hole system forms a highly elliptical, well separated binary that shows no significant inspiral for (at least) the first t{approx}1000M of evolution.

  9. Closed-loop pulsed helium ionization detector

    DOE Patents [OSTI]

    Ramsey, Roswitha S.; Todd, Richard A.

    1987-01-01

    A helium ionization detector for gas chromatography is operated in a constant current, pulse-modulated mode by configuring the detector, electrometer and a high voltage pulser in a closed-loop control system. The detector current is maintained at a fixed level by varying the frequency of fixed-width, high-voltage bias pulses applied to the detector. An output signal proportional to the pulse frequency is produced which is indicative of the charge collected for a detected species.

  10. NDRF Introduction & Close-Up

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

    Event Location Date http://www.fema.gov/recoveryframework/ www.fema.gov/ppd8 http://fema.ideascale.com/ 2 NDRF Introduction & Close-Up Deborah Ingram Assistant Administrator Federal Emergency Management Agency 3 Recovery Phases 4 * Defines roles and responsibilities * Promotes the establishment of post-disaster organizations to manage recovery * Promotes a deliberate and transparent process that provides well-coordinated support to the Community * Offers strong, focused recovery leadership

  11. Status Update: Closing Rocky Flats by 2006

    SciTech Connect (OSTI)

    Tuor, N.; Schubert, A.

    2003-02-25

    Safely closing Rocky Flats by December 2006 is a goal shared by many: the State of Colorado, the communities surrounding the site, the U.S. Congress, the Department of Energy (DOE), Kaiser-Hill and its team of subcontractors, the site's employees and taxpayers across the country. This paper will: provide a status of the Closure Project to date; describe important accomplishments of the past year; describe some of the closure-enhancing technologies enabling acceleration; and discuss the remaining challenges ahead.

  12. Gas mixtures for spark gap closing switches (Patent) | DOEPatents

    Office of Scientific and Technical Information (OSTI)

    Gas mixtures for spark gap closing switches Title: Gas mixtures for spark gap closing switches Gas mixtures for use in spark gap closing switches comprised of fluorocarbons and low ...

  13. MHK Technologies/Closed Cycle OTEC | Open Energy Information

    Open Energy Info (EERE)

    Closed Cycle OTEC < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Closed Cycle OTEC.jpg Technology Profile Primary Organization Marine...

  14. LANL closes road, trails for safety reasons; flooding and erosion...

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

    closed for safety reasons LANL closes road, trails for safety reasons; flooding and erosion control work under way Closure is in response to the increased fire risk and...

  15. Collaborative Lubricating Oil Study on Emissions (CLOSE Project...

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

    More Documents & Publications Collaborative Lubricating Oil Study on Emissions (CLOSE Project) Collaborative Lubricating Oil Study on Emissions (CLOSE) Project Lung Toxicity and ...

  16. State Energy Efficient Appliance Rebate Program is Closed | Department...

    Energy Savers [EERE]

    State Energy Efficient Appliance Rebate Program is Closed State Energy Efficient Appliance Rebate Program is Closed February 23, 2012 - 5:22am Addthis Andrea Spikes Former ...

  17. Closed orbit response to quadrupole strength variation (Technical...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Closed orbit response to quadrupole strength variation Citation Details In-Document Search Title: Closed orbit response to quadrupole strength variation We derive ...

  18. Idaho Site Closes Out Decontamination and Decommissioning Project...

    Office of Environmental Management (EM)

    Site Closes Out Decontamination and Decommissioning Project about 440 Million under Cost Idaho Site Closes Out Decontamination and Decommissioning Project about 440 Million under...

  19. Fact #850: December 8, 2014 Automatic Transmissions have closed...

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

    have closed the Fuel Economy Gap with Manual Transmissions Fact 850: December 8, 2014 Automatic Transmissions have closed the Fuel Economy Gap with Manual Transmissions ...

  20. Closing the Lithium-ion Battery Life Cycle: Poster handout |...

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

    Closing the Lithium-ion Battery Life Cycle: Poster handout Title Closing the Lithium-ion Battery Life Cycle: Poster handout Publication Type Miscellaneous Year of Publication 2014...

  1. On the reversibility of transitions between closed and open cellular...

    Office of Scientific and Technical Information (OSTI)

    between closed and open cellular convection Citation Details In-Document Search Title: On the reversibility of transitions between closed and open cellular convection The ...

  2. Closed-field capacitive liquid level sensor

    DOE Patents [OSTI]

    Kronberg, James W.

    1998-01-01

    A liquid level sensor based on a closed field circuit comprises a ring oscillator using a symmetrical array of plate units that creates a displacement current. The displacement current varies as a function of the proximity of a liquid to the plate units. The ring oscillator circuit produces an output signal with a frequency inversely proportional to the presence of a liquid. A continuous liquid level sensing device and a two point sensing device are both proposed sensing arrangements. A second set of plates may be located inside of the probe housing relative to the sensing plate units. The second set of plates prevent any interference between the sensing plate units.

  3. Closed-field capacitive liquid level sensor

    DOE Patents [OSTI]

    Kronberg, J.W.

    1995-01-01

    A liquid level sensor based on a closed field circuit comprises a ring oscillator using a symmetrical array of plate units that creates a displacement current. The displacement current varies as a function of the proximity of a liquid to the plate units. The ring oscillator circuit produces an output signal with a frequency inversely proportional to the presence of a liquid. A continuous liquid level sensing device and a two point sensing device are both proposed sensing arrangements. A second set of plates may be located inside of the probe housing relative to the sensing plate units. The second set of plates prevent any interference between the sensing plate units.

  4. Closed-field capacitive liquid level sensor

    DOE Patents [OSTI]

    Kronberg, J.W.

    1998-03-03

    A liquid level sensor based on a closed field circuit comprises a ring oscillator using a symmetrical array of plate units that creates a displacement current. The displacement current varies as a function of the proximity of a liquid to the plate units. The ring oscillator circuit produces an output signal with a frequency inversely proportional to the presence of a liquid. A continuous liquid level sensing device and a two point sensing device are both proposed sensing arrangements. A second set of plates may be located inside of the probe housing relative to the sensing plate units. The second set of plates prevent any interference between the sensing plate units. 12 figs.

  5. Close range fault tolerant noncontacting position sensor

    DOE Patents [OSTI]

    Bingham, D.N.; Anderson, A.A.

    1996-02-20

    A method and system are disclosed for locating the three dimensional coordinates of a moving or stationary object in real time. The three dimensional coordinates of an object in half space or full space are determined based upon the time of arrival or phase of the wave front measured by a plurality of receiver elements and an established vector magnitudes proportional to the measured time of arrival or phase at each receiver element. The coordinates of the object are calculated by solving a matrix equation or a set of closed form algebraic equations. 3 figs.

  6. Close range fault tolerant noncontacting position sensor

    DOE Patents [OSTI]

    Bingham, Dennis N.; Anderson, Allen A.

    1996-01-01

    A method and system for locating the three dimensional coordinates of a moving or stationary object in real time. The three dimensional coordinates of an object in half space or full space are determined based upon the time of arrival or phase of the wave front measured by a plurality of receiver elements and an established vector magnitudes proportional to the measured time of arrival or phase at each receiver element. The coordinates of the object are calculated by solving a matrix equation or a set of closed form algebraic equations.

  7. Mira close-up | Argonne Leadership Computing Facility

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

    close-up Download original image « Back to galleryItem 6

  8. U.S. Energy Information Administration (EIA)

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    week. At the New York Mercantile Exchange (NYMEX), the December 2012 natural gas contract lost 11 cents per MMBtu to close at 3.578 per MMBtu yesterday. Working natural gas in...

  9. U.S. Energy Information Administration (EIA)

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    week. At the New York Mercantile Exchange (NYMEX), the January 2012 natural gas contract lost 31.8 cents per MMBtu overall to close at 3.382 per MMBtu yesterday. Working natural...

  10. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update (EIA)

    73 cents since last Wednesday to close yesterday at 4.201 per MMBtu. Natural gas in storage as of Friday, September 22, was 3,254 Bcf, which is 12.2 percent above the 5-year...

  11. U.S. Energy Information Administration (EIA)

    Gasoline and Diesel Fuel Update (EIA)

    by 21 cents, from 3.470 per MMBtu last Wednesday to close at 3.680 per MMBtu yesterday. Working natural gas in storage declined to 1,938 Bcf as of Friday, March 8, according to...

  12. Natural Gas Weekly Update

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

    last Wednesday's level, to 5.097 per MMBtu at yesterday's close of trading. Natural gas stocks as of Friday, March 21 stood at 643 Bcf, which is 47.4 percent less than the...

  13. Natural Gas Weekly Update

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

    delivery fell 29 cents on the week to close at 5.429 yesterday (March 24). Natural gas in storage as of Friday, March 19, decreased to 1,032 Bcf, which is 8.2 percent below...

  14. Natural Gas Weekly Update, Printer-Friendly Version

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    last Wednesday's level, to 5.097 per MMBtu at yesterday's close of trading. Natural gas stocks as of Friday, March 21 stood at 643 Bcf, which is 47.4 percent less than the...

  15. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    delivery fell 29 cents on the week to close at 5.429 yesterday (March 24). Natural gas in storage as of Friday, March 19, decreased to 1,032 Bcf, which is 8.2 percent below...

  16. U.S. Energy Information Administration (EIA)

    Gasoline and Diesel Fuel Update (EIA)

    last week's steady decline, dipping to 3.06 per MMBtu on Monday before regaining some ground on Tuesday and yesterday, closing at 3.18 per MMBtu (down 14.5 percent for the...

  17. SolarTech: Sun Sets on Yesterday's Solar Permitting Practices

    Broader source: Energy.gov [DOE]

    Lengthy reviews, high costs, and inconsistent procedures are a thing of the past for residents of San Francisco looking to install solar energy systems. San Francisco government administrators have...

  18. Caterpillar Diesel Racing: Yesterday & Today | Department of Energy

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

    DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. More Documents & Publications Testing an Active Diesel Particulate Filter on a 2-Cycle Marine Engine Adaptive Control to Improve Low Temperature Diesel Engine Combustion Emissions and Durability of Underground Mining Diesel Particulate Filter Applications

  19. ORC Closed Loop Control Systems for Transient and Steady State...

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

    ORC Closed Loop Control Systems for Transient and Steady State Duty Cycles ORC Closed Loop Control Systems for Transient and Steady State Duty Cycles System-level models using ...

  20. SRS Waste Tanks 5 and 6 Are Operationally Closed | Department...

    Office of Environmental Management (EM)

    SRS Waste Tanks 5 and 6 Are Operationally Closed SRS Waste Tanks 5 and 6 Are Operationally Closed December 19, 2013 - 12:00pm Addthis The final amount of grout is poured into Tank ...

  1. Doosan Fuel Cell Takes Closed Plant to Full Production | Department...

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

    Doosan Fuel Cell Takes Closed Plant to Full Production Doosan Fuel Cell Takes Closed Plant to Full Production December 8, 2015 - 12:06pm Addthis Photo Courtesy | Doosan Fuel Cell ...

  2. Gosling and Fehner - Closing the Circle | Department of Energy

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

    Gosling and Fehner - Closing the Circle Gosling and Fehner - Closing the Circle F. G. Gosling and Terrence R. Fehner. Closing the Cirlce: The Department of Energy and Environmental Management, 1942-1994. March 1994.Text in each PDF is fully searchable. PDF icon Gosling and Fehner - Closing the Circle (complete).pdf More Documents & Publications EIS-0113: Final Environmental Impact Statement A History of the Energy Research and Development Administration Linking Legacies: Connecting the Cold

  3. On the reversibility of transitions between closed and open cellular

    Office of Scientific and Technical Information (OSTI)

    convection (Journal Article) | SciTech Connect On the reversibility of transitions between closed and open cellular convection Citation Details In-Document Search Title: On the reversibility of transitions between closed and open cellular convection The two-way transition between closed and open cellular convection is addressed in an idealized cloud-resolving modeling framework. A series of cloud-resolving simulations shows that the transition between closed and open cellular states is

  4. On the reversibility of transitions between closed and open cellular

    Office of Scientific and Technical Information (OSTI)

    convection (Journal Article) | SciTech Connect On the reversibility of transitions between closed and open cellular convection Citation Details In-Document Search Title: On the reversibility of transitions between closed and open cellular convection The two-way transition between closed and open cellular convection is addressed in an idealized cloud resolving modeling framework. A series of cloud resolving simulations shows that the transition between closed and open cellular states is

  5. Carnot{close_quote}s theorem as Noether{close_quote}s theorem for thermoacoustic engines

    SciTech Connect (OSTI)

    Smith, E.

    1998-09-01

    Onset in thermoacoustic engines, the transition to spontaneous self-generation of oscillations, is studied here as both a dynamical critical transition and a limiting heat engine behavior. The critical transition is interesting because it occurs for both dissipative and conservative systems, with common scaling properties. When conservative, the stable oscillations above the critical point also implement a reversible engine cycle satisfying Carnot{close_quote}s theorem, a universal conservation law for entropy flux. While criticality in equilibrium systems is naturally associated with symmetries and universal conservation laws, these are usually exploited with global minimization principles, which dynamical critical systems may not have if dissipation is essential to their criticality. Acoustic heat engines furnish an example connecting equilibrium methods with dynamical and possibly even dissipative critical transitions: A reversible engine is shown to map, by a change of variables, to an equivalent system in apparent thermal equilibrium; a Noether symmetry in the equilibrium field theory implies Carnot{close_quote}s theorem for the engine. Under the same association, onset is shown to be a process of spontaneous symmetry breaking and the scaling of the quality factor predicted for both the reversible {ital and irreversible} engines is shown to arise from the Ginzburg-Landau description of the broken phase. {copyright} {ital 1998} {ital The American Physical Society}

  6. Sub-millikelvin stabilization of a closed cycle cryocooler (Journal

    Office of Scientific and Technical Information (OSTI)

    Article) | SciTech Connect Sub-millikelvin stabilization of a closed cycle cryocooler Citation Details In-Document Search Title: Sub-millikelvin stabilization of a closed cycle cryocooler In this study, intrinsic temperature oscillations (with the amplitude up to 1 K) of a closed cycle cryocooler are stabilized by a simple thermal damping system. It employs three different materials with different thermal conductivity and capacity at various temperatures. The amplitude of oscillations of the

  7. Closing Gaps in Modeling Multifamily Retrofits | Department of Energy

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

    Closing Gaps in Modeling Multifamily Retrofits Closing Gaps in Modeling Multifamily Retrofits This presentation was delivered at the U.S. Department of Energy Building America Technical Update meeting on April 29-30, 2013, in Denver, Colorado. PDF icon cq6_closing_gaps_multifamily_dentz.pdf More Documents & Publications Critical Question #6: What are the Challenges and Solutions for Modeling Multifamily Buildings? Building America Webinar: Central Multifamily Water Heating Systems -

  8. Energy Department Receives Prestigious Closing the Circle Awards for

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

    Environmental Stewardship | Department of Energy Receives Prestigious Closing the Circle Awards for Environmental Stewardship Energy Department Receives Prestigious Closing the Circle Awards for Environmental Stewardship June 13, 2007 - 1:40pm Addthis DOE Won Four Out of Ten Civilian Awards WASHINGTON, DC - The Department of Energy (DOE) this week received four White House Closing the Circle (CTC) awards, which recognize federal leadership in green purchasing, electronics recycling, and

  9. Power Generating Stationary Engines Nox Control: A Closed Loop...

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

    Power Generating Stationary Engines Nox Control: A Closed Loop Control Technology Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) ...

  10. President Obama's Visit to Alaska: Closing Thoughts | Department of

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

    Energy Obama's Visit to Alaska: Closing Thoughts President Obama's Visit to Alaska: Closing Thoughts September 4, 2015 - 2:41pm Addthis After a three-day journey around Alaska, the President offered his closing thoughts. Here is an excerpt: "On the final day of my trip to Alaska, I understand that I became the first president to travel above the Arctic Circle. It's hard to believe this trip is already coming to a close. Over the course of the past three days, from the decks of Coast

  11. Closed Funding Opportunity Announcements (FOAs) | U.S. DOE Office...

    Office of Science (SC) Website

    Sort by: Post Date | Close Date Regional and Global Climate Modeling and Integrated Assessment Research: An Integration Framework for Multi-Model, U.S. Regional Climate Evaluation ...

  12. Accelerator-driven subcritical fission in molten salt core: Closing...

    Office of Scientific and Technical Information (OSTI)

    Accelerator-driven subcritical fission in molten salt core: Closing the nuclear fuel cycle for green nuclear energy Citation Details In-Document Search Title: Accelerator-driven ...

  13. ARM - Expectations for Campaign Implementation and Close Out

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

    CampaignsExpectations for Campaign Implementation and Close Out Guidelines Overview Annual Facility Call Small Field Campaigns Review Criteria Expectations for Principal...

  14. Energy Department Receives Prestigious Closing the Circle Awards...

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

    this week received four White House Closing the Circle (CTC) awards, which recognize federal leadership in green purchasing, electronics recycling, and energy efficiency practices. ...

  15. Posting Date: July 16, 2015 Posting Close Date: TBD

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

    July 16, 2015 Posting Close Date: TBD North American Industry Classification System (NAICS) code for the request: 812332 Estimated SubcontractPO Value TBD Estimated Period of...

  16. 98th LHCC meeting Agenda OPEN Session and CLOSED Session

    ScienceCinema (OSTI)

    None

    2011-10-06

    OPEN Session on Wednesday, 8 July at 9h00-11h00 in Main Auditorium, Live webcast, followed by CLOSED Session, Conference room 160-1-009 11h20-17h00. CLOSED Session continued on Thursday, 9 July at 9h00-12h30

  17. Secretary Chu Announces Closing of $117 Million Loan Guarantee...

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

    Wind Power Project Secretary Chu Announces Closing of 117 Million Loan Guarantee for Kahuku Wind Power Project July 27, 2010 - 12:00am Addthis Washington D.C. --- Energy ...

  18. Closed Funding Opportunity Announcements (FOAs) | U.S. DOE Office...

    Office of Science (SC) Website

    Print Text Size: A A A FeedbackShare Page Fiscal Year: Select 2016 2015 2014 2013 2012 ... Announcement Number: DE-FOA-0001386 Post Date: July 31, 2015 Close Date: November 19, 2015 ...

  19. Closed FOAs | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Print Text Size: A A A FeedbackShare Page Fiscal Year: Select 2016 2015 2014 2013 2012 ... Announcement Number: DE FOA 0001417 Post Date: November 30, 2015 Close Date: February 9, ...

  20. Closed Funding Opportunity Announcements (FOAs) | U.S. DOE Office...

    Office of Science (SC) Website

    Print Text Size: A A A FeedbackShare Page Fiscal Year: Select 2016 2015 2014 2013 2012 ... Announcement Number: DE FOA 0001438 Post Date: October 13, 2015 Close Date: December 21, ...

  1. SRS Commemorates P & R Reactor Area Completions - SRS Closes...

    Office of Environmental Management (EM)

    Commemorates P & R Reactor Area Completions - SRS Closes the Door on Past Cold War Operations and Opens the Door for Future Missions through Enterprise SRS SRS Commemorates P & R ...

  2. Closing_Language_Patent_Waiver_Grant_Cases.pdf | Department of...

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

    ClosingLanguagePatentWaiverGrantCases.pdf More Documents & Publications Identified Patent Waiver W(I)2009-004 Identified Patent Waiver W(I)2010-004 Advance Patent Waiver...

  3. Energy Department Closes Buy American Investigation into Lighting Sales

    Broader source: Energy.gov [DOE]

    Today, the Department of Energy formally closed its investigation into whether sales to recipients of the Department's Energy Efficiency Community Block Grants  by two California companies, US...

  4. DOE Closes Investigation into Energy Efficiency of Viking Refrigerator

    Broader source: Energy.gov [DOE]

    The Department of Energy has closed its investigation into the energy efficiency of Viking Range Corporation’s refrigerator-freezer model VCSB542.  The Department initiated this investigation in...

  5. Chimneys: Keep 'em Clean... and Closed | Department of Energy

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

    Chimneys: Keep 'em Clean... and Closed October 27, 2008 - 3:34pm Addthis Drew Bittner WriterEditor, Office of Energy Efficiency and Renewable Energy Growing up in Wisconsin and ...

  6. Direct-contact closed-loop heat exchanger

    DOE Patents [OSTI]

    Berry, Gregory F. (Naperville, IL); Minkov, Vladimir (Skokie, IL); Petrick, Michael (Joliet, IL)

    1984-01-01

    A high temperature heat exchanger with a closed loop and a heat transfer liquid within the loop, the closed loop having a first horizontal channel with inlet and outlet means for providing direct contact of a first fluid at a first temperature with the heat transfer liquid, a second horizontal channel with inlet and outlet means for providing direct contact of a second fluid at a second temperature with the heat transfer liquid, and means for circulating the heat transfer liquid.

  7. Energy Cost Savings Calculator for Commercial Boilers: Closed Loop, Space

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

    Heating Applications Only | Department of Energy Commercial Boilers: Closed Loop, Space Heating Applications Only Energy Cost Savings Calculator for Commercial Boilers: Closed Loop, Space Heating Applications Only This cost calculator is a screening tool that estimates a product's lifetime energy cost savings at various efficiency levels. Learn more about the base model and other assumptions. Project Type Is this a new installation or a replacement? New Replacement What is the deliverable

  8. Sub-millikelvin stabilization of a closed cycle cryocooler (Journal

    Office of Scientific and Technical Information (OSTI)

    Article) | DOE PAGES Sub-millikelvin stabilization of a closed cycle cryocooler « Prev Next » Title: Sub-millikelvin stabilization of a closed cycle cryocooler × You are accessing a document from the Department of Energy's (DOE) Public Access Gateway for Energy & Science (PAGES). This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as a public service. Visit OSTI to utilize additional information resources in energy science and

  9. Collaborative Lubricating Oil Study on Emissions (CLOSE Project) |

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

    Department of Energy 1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon ace046_lawson_2011_o.pdf More Documents & Publications Collaborative Lubricating Oil Study on Emissions (CLOSE Project) Collaborative Lubricating Oil Study on Emissions (CLOSE) Project Vehicle Technologies Office: 2012 Fuel and Lubricant Technologies R&D Annual Progress Report

  10. Collaborative Lubricating Oil Study on Emissions (CLOSE) Project |

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

    Department of Energy Extensive chemical and physical characterization performed on emissions from normal and high emitting light-, medium-, and heavy-duty vehicles to evaluate relative contributions of fuel and lubricating oil on tailpipe emissions. PDF icon deer08_lawson.pdf More Documents & Publications Collaborative Lubricating Oil Study on Emissions (CLOSE Project) Collaborative Lubricating Oil Study on Emissions (CLOSE Project) The FreedomCAR & Vehicle Technologies Health

  11. High Impact Technology Hub- Host a Site

    Broader source: Energy.gov [DOE]

    We are always looking for partners to host technology demonstrations. Host site participants receive recognition by the Department of Energy, site applicability analysis as well as the opportunity...

  12. Hubs+ Report Appendix 1_0.pdf

    Energy Savers [EERE]

  13. High Impact Technology Hub Resources for Evaluators

    Broader source: Energy.gov [DOE]

    The HIT Catalyst conducts technology demonstrations in three main phases: Site Evaluation, Selection and Project Kick-Off, Measurement and Verification Scoping and Plan Development. The following...

  14. The Hub of Innovation for American Housing

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

    ... Works with the Whole BTO Ecosystem We Need a Roadmap? ... MELsControls Efficient Water Heating IAQ & Ventilation ... Summary Timeline (this cycle): Start date: January 2011 ...

  15. Energy Efficient Buildings Hub | Department of Energy

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

    This model of a renovated historic building -- Building 661 -- in Philadelphia will house ... This model of a renovated historic building -- Building 661 -- in Philadelphia will house ...

  16. Method Of Making Closed End Ceramic Fuel Cell Tubes

    DOE Patents [OSTI]

    Borglum, Brian P.

    2002-04-30

    A method of manufacturing closed end ceramic fuel cell tubes with improved properties and higher manufacturing yield is disclosed. The method involves bonding an unfired cap to a hollow unfired tube to form a compound joint. The assembly is then fired to net shape without subsequent machining. The resultant closed end tube is superior in that it provides a leak-tight seal and its porosity is substantially identical to that of the tube wall. The higher manufacturing yield associated with the present method decreases overall fuel cell cost significantly.

  17. How Close Are We to Nuclear Fusion? | GE Global Research

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

    Close Are We to Nuclear Fusion? Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) How Close Are We to Nuclear Fusion? 2012.05.15 Chief Scientist Jim Bray discusses how light atoms combine to form heavy atoms and give off energy, and how we might harness this process for use outside of nuclear weaponry. 1 Comment Comment

  18. Take the the Annual NERSC Survey - Closes January 31

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

    Take the the Annual NERSC Survey Take the the Annual NERSC Survey - Closes January 31 January 9, 2014 by Francesca Verdier User input on the annual NERSC survey is important to us. We use the survey to help us set priorities and to get a realistic view of which things are going well and which need more attention. Here is the link to the survey, which closes January 31: https://www.nersc.gov/news-publications/publications-reports/user-surveys/2013/ Subscribe via RSS Subscribe Browse by Date May

  19. Sub-millikelvin stabilization of a closed cycle cryocooler

    SciTech Connect (OSTI)

    Dubuis, Guy; He, Xi; Bozovic, Ivan

    2014-10-03

    Intrinsic temperature oscillations (with the amplitude up to 1 K) of a closed cycle cryocooler are stabilized by a simple thermal damping system. It employs three different materials with different thermal conductivity and capacity at various temperatures. The amplitude of oscillations of the sample temperature is reduced to less than 1 mK, in the temperature range from 4 K to 300 K, while the cooling power is virtually undiminished. The damping system is small, inexpensive, can be retrofitted to most existing closed cycle cryocoolers, and may improve measurements of any temperature-sensitive physics properties.

  20. Direct-contact closed-loop heat exchanger

    DOE Patents [OSTI]

    Berry, G.F.; Minkov, V.; Petrick, M.

    1981-11-02

    A high temperature heat exchanger is disclosed which has a closed loop and a heat transfer liquid within the loop, the closed loop having a first horizontal channel with inlet and outlet means for providing direct contact of a first fluid at a first temperature with the heat transfer liquid, a second horizontal channel with inlet and outlet means for providing direct contact of a second fluid at a second temperature with the heat transfer liquid, and means for circulating the heat transfer liquid.

  1. Closing the Gender Gap in Energy Policy | Department of Energy

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

    Closing the Gender Gap in Energy Policy Closing the Gender Gap in Energy Policy April 7, 2011 - 3:07pm Addthis Melanie A. Kenderdine Melanie A. Kenderdine Director of the Office of Energy Policy and Systems Analysis What are the key facts? There's not just a shortage of women in technical energy-related fields, there's also a shortage of women in energy policy. Women hold only 27 percent of the science and engineering jobs in the United States. Editor's Note: Join the conversation surrounding

  2. Sub-millikelvin stabilization of a closed cycle cryocooler

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

    Dubuis, Guy; He, Xi; Božović, Ivan

    2014-10-03

    In this study, intrinsic temperature oscillations (with the amplitude up to 1 K) of a closed cycle cryocooler are stabilized by a simple thermal damping system. It employs three different materials with different thermal conductivity and capacity at various temperatures. The amplitude of oscillations of the sample temperature is reduced to less than 1 mK, in the temperature range from 4 K to 300 K, while the cooling power is virtually undiminished. The damping system is small, inexpensive, can be retrofitted to most existing closed cycle cryocoolers, and may improve measurements of any temperature-sensitive physics properties.

  3. Measurement of multijunction cells under close-match conditions

    SciTech Connect (OSTI)

    Wilkinson, V.A.; Goodbody, C.; Williams, W.G.

    1997-12-31

    This paper presents details of a new close-match solar simulator developed for DERA`s Space Power Laboratory for the accurate characterization of multijunction solar cells. The authors present data on the simulator measurements of dual and triple junction cells. The measurements are compared with those made under less ideal spectral conditions.

  4. Benefits and concerns of a closed nuclear fuel cycle

    SciTech Connect (OSTI)

    Widder, Sarah H.

    2010-11-17

    Nuclear power can play an important role in our energy future, contributing to increasing electricity demand while at the same time decreasing carbon dioxide emissions. However, the nuclear fuel cycle in the United States today is unsustainable. As stated in the 1982 Nuclear Waste Policy Act, the U.S. Department of Energy is responsible for disposing of spent nuclear fuel generated by commercial nuclear power plants operating in a once-through fuel cycle in the deep geologic repository located at Yucca Mountain. However, unyielding political opposition to the site has hindered the commissioning process to the extant that the current administration has recently declared the unsuitability of the Yucca Mountain site. In light of this the DOE is exploring other options, including closing the fuel cycle through recycling and reprocessing of spent nuclear fuel. The possibility of closing the fuel cycle is receiving special attention because of its ability to minimize the final high level waste (HLW) package as well as recover additional energy value from the original fuel. The technology is, however, still very controversial because of the increased cost and proliferation risk it can present. To lend perspective on the closed fuel cycle alternative, this presents the arguments for and against closing the fuel cycle with respect to sustainability, proliferation risk, commercial viability, waste management, and energy security.

  5. Self-closing shielded container for use with radioactive materials

    DOE Patents [OSTI]

    Smith, J.E.

    1984-10-16

    A container is described for storage of radioactive material comprising a container body and a closure member. The closure member being coupled to the container body to enable the closure body to move automatically from a first position (e.g., closed) to a second position (open). 1 fig.

  6. Self-closing shielded container for use with radioactive materials

    DOE Patents [OSTI]

    Smith, Jay E.

    1984-01-01

    A container for storage of radioactive material comprising a container body nd a closure member. The closure member being coupled to the container body to enable the closure body to move automatically from a first position (e.g., closed) to a second position (open).

  7. Self-closing shielded container for use with radioactive materials

    DOE Patents [OSTI]

    Smith, J.E.

    A container for storage of radioactive material comprises a container body and a closure member. The closure member is coupled to the container body to enable the closure body to move automatically from a first position (e.g., closed) to a second position (open).

  8. 96th LHCC meeting Agenda OPEN Session and CLOSED Session

    ScienceCinema (OSTI)

    None

    2011-10-06

    OPEN Session on Wednesday, 19 November 2008 at 9h00-11h00 in Main Auditorium, Live webcast. Followed by CLOSED Session , 6th floor Conference room and continued on Thursday, 20 November 2008 9h00-13h00

  9. Close-packed array of light emitting devices

    DOE Patents [OSTI]

    Ivanov, Ilia N.; Simpson, John T.

    2013-04-09

    A close-packed array of light emitting diodes includes a nonconductive substrate having a plurality of elongate channels extending therethrough from a first side to a second side, where each of the elongate channels in at least a portion of the substrate includes a conductive rod therein. The conductive rods have a density over the substrate of at least about 1,000 rods per square centimeter and include first conductive rods and second conductive rods. The close-packed array further includes a plurality of light emitting diodes on the first side of the substrate, where each light emitting diode is in physical contact with at least one first conductive rod and in electrical contact with at least one second conductive rod.

  10. Study of the Open Loop and Closed Loop Oscillator Techniques

    SciTech Connect (OSTI)

    Imel, George R.; Baker, Benjamin; Riley, Tony; Langbehn, Adam; Aryal, Harishchandra; Benzerga, M. Lamine

    2015-04-11

    This report presents the progress and completion of a five-year study undertaken at Idaho State University of the measurement of very small worth reactivity samples comparing open and closed loop oscillator techniques.The study conclusively demonstrated the equivalency of the two techniques with regard to uncertainties in reactivity values, i.e., limited by reactor noise. As those results are thoroughly documented in recent publications, in this report we will concentrate on the support work that was necessary. For example, we describe in some detail the construction and calibration of a pilot rod for the closed loop system. We discuss the campaign to measure the required reactor parameters necessary for inverse-kinetics. Finally, we briefly discuss the transfer of the open loop technique to other reactor systems.

  11. Closing Statement to the GNEP Ministerial | Department of Energy

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

    Statement to the GNEP Ministerial Closing Statement to the GNEP Ministerial October 1, 2008 - 3:43pm Addthis Remarks as Prepared for Secretary Bodman Thank you, Minister Borloo . . . and many thanks to the French government for hosting this meeting and for your leadership within GNEP. I also want to acknowledge the four newest members of our Partnership: Armenia, Estonia, Morocco and Oman, each of which signed our Statement of Principles today. As Minister Borloo indicated, today the GNEP

  12. 100th LHCC meeting AGENDA OPEN and CLOSED Sessions

    ScienceCinema (OSTI)

    None

    2011-10-06

    OPEN Sessions on Wednesday, 17 February at 8h30-13h00 and 18 February at 9h00-11h00 in MAIN AUDITORIUM, CERN staff and Users are welcome to attend Open Sessions - LIVE WEBCAST. CLOSED Sessions in Conference room 60-6-015 Wednesday 17 February at 14h00-19h00 and continued on Thursday, 18 February at 11h00-17h00.

  13. Heliostat System with Wireless Closed-Loop Control

    Broader source: Energy.gov [DOE]

    This fact sheet summarizes a SunShot Initiative project led by Thermata to develop and demonstrate the first practical heliostat to use closed-loop tracking that can optically sense and control the reflected sunlight beam at the target. The expected benefits of this system include the reduction in the total installed cost of the heliostat field in a power tower concentrating solar power project.

  14. Closed-loop air cooling system for a turbine engine

    DOE Patents [OSTI]

    North, William Edward

    2000-01-01

    Method and apparatus are disclosed for providing a closed-loop air cooling system for a turbine engine. The method and apparatus provide for bleeding pressurized air from a gas turbine engine compressor for use in cooling the turbine components. The compressed air is cascaded through the various stages of the turbine. At each stage a portion of the compressed air is returned to the compressor where useful work is recovered.

  15. Posting Date: 3/15/2016 Posting Close Date: 4

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

    3/15/2016 Posting Close Date: 4 th QTR 2016 North American Industry Classification System (NAICS) code for the request: 236210 Estimated Subcontract/PO Value: TBD Estimated Period of Performance: TBD Estimated RFP/RFQ Release Date: 4 th QTR 2016 Estimated Award Date: TBD Competition Type: TBD Buyer Contact Email: shanej@lanl.gov Title: Transuranic (TRU) Liquid Waste (TLW) Project Description of Product or Service Required The Transuranic (TRU) Liquid Waste (TLW) Project is a congressionally

  16. Posting Date: July 16, 2015 Posting Close Date: TBD

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

    July 16, 2015 Posting Close Date: TBD North American Industry Classification System (NAICS) code for the request: 812332 Estimated Subcontract/PO Value TBD Estimated Period of Performance 8-03-15 Estimated RFP/RFQ Release Date: TBD Estimated Award Date: FY 2018 Competition Type: Open Buyer Contact Email: pbeauparlant@lanl.gov Title: Radioactive Laundry and Respirator Services Description of Product or Service Required Radioactive Laundry and Respirator Services * Current forecasted bid

  17. THE ALBEDOS OF KEPLER'S CLOSE-IN SUPER-EARTHS

    SciTech Connect (OSTI)

    Demory, Brice-Olivier

    2014-07-01

    Exoplanet research focusing on the characterization of super-Earths is currently limited to the handful of targets orbiting bright stars that are amenable to detailed study. This Letter proposes to look at alternative avenues to probe the surface and atmospheric properties of this category of planets, known to be ubiquitous in our galaxy. I conduct Markov Chain Monte Carlo light-curves analyses for 97 Kepler close-in R{sub P} ? 2.0 R {sub ?} super-Earth candidates with the aim of detecting their occultations at visible wavelengths. Brightness temperatures and geometric albedos in the Kepler bandpass are constrained for 27 super-Earth candidates. A hierarchical Bayesian modeling approach is then employed to characterize the population-level reflective properties of these close-in super-Earths. I find median geometric albedos A{sub g} in the Kepler bandpass ranging between 0.16 and 0.30, once decontaminated from thermal emission. These super-Earth geometric albedos are statistically larger than for hot Jupiters, which have medians A{sub g} ranging between 0.06 and 0.11. A subset of objects, including Kepler-10b, exhibit significantly larger albedos (A{sub g} ? 0.4). I argue that a better understanding of the incidence of stellar irradation on planetary surface and atmospheric processes is key to explain the diversity in albedos observed for close-in super-Earths.

  18. Binary and ternary gas mixtures for use in glow discharge closing...

    Office of Scientific and Technical Information (OSTI)

    Highly efficient binary and ternary gas mixtures for use in diffuse glow discharge closing ... discharge; closing; switches; highly; efficient; binary; ternary; gas; mixtures; ...

  19. A Practical Approach to a Closed Nuclear Fuel Cycle and Sustained...

    Office of Scientific and Technical Information (OSTI)

    Conference: A Practical Approach to a Closed Nuclear Fuel Cycle and Sustained Nuclear Energy Citation Details In-Document Search Title: A Practical Approach to a Closed Nuclear ...

  20. Diesel Combustion Control with Closed-Loop Control of the Injection...

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

    Combustion Control with Closed-Loop Control of the Injection Strategy Diesel Combustion Control with Closed-Loop Control of the Injection Strategy New control strategies are ...

  1. Closed Brayton cycle power conversion systems for nuclear reactors :

    SciTech Connect (OSTI)

    Wright, Steven A.; Lipinski, Ronald J.; Vernon, Milton E.; Sanchez, Travis

    2006-04-01

    This report describes the results of a Sandia National Laboratories internally funded research program to study the coupling of nuclear reactors to gas dynamic Brayton power conversion systems. The research focused on developing integrated dynamic system models, fabricating a 10-30 kWe closed loop Brayton cycle, and validating these models by operating the Brayton test-loop. The work tasks were performed in three major areas. First, the system equations and dynamic models for reactors and Closed Brayton Cycle (CBC) systems were developed and implemented in SIMULINKTM. Within this effort, both steady state and dynamic system models for all the components (turbines, compressors, reactors, ducting, alternators, heat exchangers, and space based radiators) were developed and assembled into complete systems for gas cooled reactors, liquid metal reactors, and electrically heated simulators. Various control modules that use proportional-integral-differential (PID) feedback loops for the reactor and the power-conversion shaft speed were also developed and implemented. The simulation code is called RPCSIM (Reactor Power and Control Simulator). In the second task an open cycle commercially available Capstone C30 micro-turbine power generator was modified to provide a small inexpensive closed Brayton cycle test loop called the Sandia Brayton test-Loop (SBL-30). The Capstone gas-turbine unit housing was modified to permit the attachment of an electrical heater and a water cooled chiller to form a closed loop. The Capstone turbine, compressor, and alternator were used without modification. The Capstone systems nominal operating point is 1150 K turbine inlet temperature at 96,000 rpm. The annular recuperator and portions of the Capstone control system (inverter) and starter system also were reused. The rotational speed of the turbo-machinery is controlled by adjusting the alternator load by using the electrical grid as the load bank. The SBL-30 test loop was operated at the manufacturers site (Barber-Nichols Inc.) and installed and operated at Sandia. A sufficiently detailed description of the loop is provided in this report along with the design characteristics of the turbo-alternator-compressor set to allow other researchers to compare their results with those measured in the Sandia test-loop. The third task consisted of a validation effort. In this task the test loop was operated and compared with the modeled results to develop a more complete understanding of this electrically heated closed power generation system and to validate the model. The measured and predicted system temperatures and pressures are in good agreement, indicating that the model is a reasonable representation of the test loop. Typical deviations between the model and the hardware results are less than 10%. Additional tests were performed to assess the capability of the Brayton engine to continue to remove decay heat after the reactor/heater is shutdown, to develop safe and effective control strategies, and to access the effectiveness of gas inventory control as an alternative means to provide load following. In one test the heater power was turned off to simulate a rapid reactor shutdown, and the turbomachinery was driven solely by the sensible heat stored in the heater for over 71 minutes without external power input. This is an important safety feature for CBC systems as it means that the closed Brayton loop will keep cooling the reactor without the need for auxiliary power (other than that needed to circulate the waste heat rejection coolant) provided the heat sink is available.

  2. Closed loop air cooling system for combustion turbines

    DOE Patents [OSTI]

    Huber, D.J.; Briesch, M.S.

    1998-07-21

    Convective cooling of turbine hot parts using a closed loop system is disclosed. Preferably, the present invention is applied to cooling the hot parts of combustion turbine power plants, and the cooling provided permits an increase in the inlet temperature and the concomitant benefits of increased efficiency and output. In preferred embodiments, methods and apparatus are disclosed wherein air is removed from the combustion turbine compressor and delivered to passages internal to one or more of a combustor and turbine hot parts. The air cools the combustor and turbine hot parts via convection and heat is transferred through the surfaces of the combustor and turbine hot parts. 1 fig.

  3. Closed loop air cooling system for combustion turbines

    DOE Patents [OSTI]

    Huber, David John; Briesch, Michael Scot

    1998-01-01

    Convective cooling of turbine hot parts using a closed loop system is disclosed. Preferably, the present invention is applied to cooling the hot parts of combustion turbine power plants, and the cooling provided permits an increase in the inlet temperature and the concomitant benefits of increased efficiency and output. In preferred embodiments, methods and apparatus are disclosed wherein air is removed from the combustion turbine compressor and delivered to passages internal to one or more of a combustor and turbine hot parts. The air cools the combustor and turbine hot parts via convection and heat is transferred through the surfaces of the combustor and turbine hot parts.

  4. Closing of the GNEP Ministerial Meeting | Department of Energy

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

    of the GNEP Ministerial Meeting Closing of the GNEP Ministerial Meeting May 21, 2007 - 12:55pm Addthis Remarks as Prepared for Secretary Bodman Thank you all for coming. Ministers, distinguished guests, ladies and gentlemen of the press, thank you all for being here. I'm Sam Bodman, the United States Secretary of Energy. As I think most of you know, President Bush proposed a Global Nuclear Energy Partnership - or GNEP - to allow developing nations to share in the benefits of nuclear power in an

  5. Please take the 2012 NERSC Usr Survey (now closed)

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

    Please take the 2012 NERSC Usr Survey Please take the 2012 NERSC Usr Survey (now closed) January 1, 2013 by Francesca Verdier Please take a few minutes to fill out NERSC's annual user survey. Your feedback is important because it allows us to judge the quality of our services, give DOE information on how we are doing, and point us to areas in which we can improve. The survey is on the web at the URL: https://www.nersc.gov/news-publications/publications-reports/user-surveys/2012/ The survey,

  6. METHOD AND MEANS FOR CLOSING TUBES BY SPINNING

    DOE Patents [OSTI]

    Graves, E.E.; Coonfare, R.H.

    1958-08-26

    An improved spinning tool is described for producing a fold-free closed end on an aluminum jacketing tube such as is commonly used to protect a uranium fuel element. The tool will fit the toolholder of a lathe in which the jacket is rotated. The tool has a number of working faces so that the hemispherical end- closure is formed, the folds and wrinkles are smcothed out, and the excess metal is trimmed off in one transverse cutting operation. This tool considerably speeds up the closure process, and eliminates the need for a weld seal.

  7. Enabling comparative modeling of closely related genomes: Example genus Brucella

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

    Faria, José P.; Edirisinghe, Janaka N.; Davis, James J.; Disz, Terrence; Hausmann, Anna; Henry, Christopher S.; Olson, Robert; Overbeek, Ross A.; Pusch, Gordon D.; Shukla, Maulik; et al

    2014-03-08

    For many scientific applications, it is highly desirable to be able to compare metabolic models of closely related genomes. In this study, we attempt to raise awareness to the fact that taking annotated genomes from public repositories and using them for metabolic model reconstructions is far from being trivial due to annotation inconsistencies. We are proposing a protocol for comparative analysis of metabolic models on closely related genomes, using fifteen strains of genus Brucella, which contains pathogens of both humans and livestock. This study lead to the identification and subsequent correction of inconsistent annotations in the SEED database, as wellmore » as the identification of 31 biochemical reactions that are common to Brucella, which are not originally identified by automated metabolic reconstructions. We are currently implementing this protocol for improving automated annotations within the SEED database and these improvements have been propagated into PATRIC, Model-SEED, KBase and RAST. This method is an enabling step for the future creation of consistent annotation systems and high-quality model reconstructions that will support in predicting accurate phenotypes such as pathogenicity, media requirements or type of respiration.« less

  8. An Innovative Pressure Sensor Glow Plug Offers Improved Diesel Engine Closed-loop Control

    Broader source: Energy.gov [DOE]

    Describes glow plug with integrated pressure sensor for closed-loop control of diesel engine combustion

  9. Optimum design point for a closed-cycle OTEC system

    SciTech Connect (OSTI)

    Ikegami, Yasuyuki; Uehara, Haruo

    1994-12-31

    Performance analysis is performed for optimum design point of a closed-cycle Ocean Thermal Energy Conversion (OTEC) system. Calculations are made for an OTEC model plant with a gross power of 100 MW, which was designed by the optimization method proposed by Uehara and Ikegami for the design conditions of 21 C--29 C warm sea water temperature and 4 C cold sea water temperature. Ammonia is used as working fluid. Plate type evaporator and condenser are used as heat exchangers. The length of the cold sea water pipe is 1,000 m. This model plant is a floating-type OTEC plant. The objective function of optimum design point is defined as the total heat transfer area of heat exchangers per the annual net power.

  10. Closed loop computer control for an automatic transmission

    DOE Patents [OSTI]

    Patil, Prabhakar B.

    1989-01-01

    In an automotive vehicle having an automatic transmission that driveably connects a power source to the driving wheels, a method to control the application of hydraulic pressure to a clutch, whose engagement produces an upshift and whose disengagement produces a downshift, the speed of the power source, and the output torque of the transmission. The transmission output shaft torque and the power source speed are the controlled variables. The commanded power source torque and commanded hydraulic pressure supplied to the clutch are the control variables. A mathematical model is formulated that describes the kinematics and dynamics of the powertrain before, during and after a gear shift. The model represents the operating characteristics of each component and the structural arrangement of the components within the transmission being controlled. Next, a close loop feedback control is developed to determine the proper control law or compensation strategy to achieve an acceptably smooth gear ratio change, one in which the output torque disturbance is kept to a minimum and the duration of the shift is minimized. Then a computer algorithm simulating the shift dynamics employing the mathematical model is used to study the effects of changes in the values of the parameters established from a closed loop control of the clutch hydraulic and the power source torque on the shift quality. This computer simulation is used also to establish possible shift control strategies. The shift strategies determined from the prior step are reduced to an algorithm executed by a computer to control the operation of the power source and the transmission.

  11. CEMENTITIOUS GROUT FOR CLOSING SRS HIGH LEVEL WASTE TANKS - #12315

    SciTech Connect (OSTI)

    Langton, C.; Burns, H.; Stefanko, D.

    2012-01-10

    In 1997, the first two United States Department of Energy (US DOE) high level waste tanks (Tanks 17-F and 20-F: Type IV, single shell tanks) were taken out of service (permanently closed) at the Savannah River Site (SRS). In 2012, the DOE plans to remove from service two additional Savannah River Site (SRS) Type IV high-level waste tanks, Tanks 18-F and 19-F. These tanks were constructed in the late 1950's and received low-heat waste and do not contain cooling coils. Operational closure of Tanks 18-F and 19-F is intended to be consistent with the applicable requirements of the Resource Conservation and Recovery Act (RCRA) and the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) and will be performed in accordance with South Carolina Department of Health and Environmental Control (SCDHEC). The closure will physically stabilize two 4.92E+04 cubic meter (1.3 E+06 gallon) carbon steel tanks and isolate and stabilize any residual contaminants left in the tanks. The closure will also fill, physically stabilize and isolate ancillary equipment abandoned in the tanks. A Performance Assessment (PA) has been developed to assess the long-term fate and transport of residual contamination in the environment resulting from the operational closure of the F-Area Tank Farm (FTF) waste tanks. Next generation flowable, zero-bleed cementitious grouts were designed, tested, and specified for closing Tanks 18-F and 19-F and for filling the abandoned equipment. Fill requirements were developed for both the tank and equipment grouts. All grout formulations were required to be alkaline with a pH of 12.4 and chemically reduction potential (Eh) of -200 to -400 to stabilize selected potential contaminants of concern. This was achieved by including Portland cement and Grade 100 slag in the mixes, respectively. Ingredients and proportions of cementitious reagents were selected and adjusted, respectively, to support the mass placement strategy developed by closure operations. Subsequent down selection was based on compressive strength and saturated hydraulic conductivity results. Fresh slurry property results were used as the first level of screening. A high range water reducing admixture and a viscosity modifying admixture were used to adjust slurry properties to achieve flowable grouts. Adiabatic calorimeter results were used as the second level screening. The third level of screening was used to design mixes that were consistent with the fill material parameters used in the F-Tank Farm Performance Assessment which was developed to assess the long-term fate and transport of residual contamination in the environment resulting from the operational closures.

  12. Film cooling air pocket in a closed loop cooled airfoil

    DOE Patents [OSTI]

    Yu, Yufeng Phillip; Itzel, Gary Michael; Osgood, Sarah Jane; Bagepalli, Radhakrishna; Webbon, Waylon Willard; Burdgick, Steven Sebastian

    2002-01-01

    Turbine stator vane segments have radially inner and outer walls with vanes extending between them. The inner and outer walls are compartmentalized and have impingement plates. Steam flowing into the outer wall plenum passes through the impingement plate for impingement cooling of the outer wall upper surface. The spent impingement steam flows into cavities of the vane having inserts for impingement cooling the walls of the vane. The steam passes into the inner wall and through the impingement plate for impingement cooling of the inner wall surface and for return through return cavities having inserts for impingement cooling of the vane surfaces. To provide for air film cooing of select portions of the airfoil outer surface, at least one air pocket is defined on a wall of at least one of the cavities. Each air pocket is substantially closed with respect to the cooling medium in the cavity and cooling air pumped to the air pocket flows through outlet apertures in the wall of the airfoil to cool the same.

  13. Effects of cooling time on a closed LWR fuel cycle

    SciTech Connect (OSTI)

    Arnold, R. P.; Forsberg, C. W.; Shwageraus, E.

    2012-07-01

    In this study, the effects of cooling time prior to reprocessing spent LWR fuel has on the reactor physics characteristics of a PWR fully loaded with homogeneously mixed U-Pu or U-TRU oxide (MOX) fuel is examined. A reactor physics analysis was completed using the CASM04e code. A void reactivity feedback coefficient analysis was also completed for an infinite lattice of fresh fuel assemblies. Some useful conclusions can be made regarding the effect that cooling time prior to reprocessing spent LWR fuel has on a closed homogeneous MOX fuel cycle. The computational analysis shows that it is more neutronically efficient to reprocess cooled spent fuel into homogeneous MOX fuel rods earlier rather than later as the fissile fuel content decreases with time. Also, the number of spent fuel rods needed to fabricate one MOX fuel rod increases as cooling time increases. In the case of TRU MOX fuel, with time, there is an economic tradeoff between fuel handling difficulty and higher throughput of fuel to be reprocessed. The void coefficient analysis shows that the void coefficient becomes progressively more restrictive on fuel Pu content with increasing spent fuel cooling time before reprocessing. (authors)

  14. Close-packed-array (CPA) thermoelectric module development status

    SciTech Connect (OSTI)

    Brittain, W.M. )

    1991-01-05

    Prior effort on the U.S. Department of Energy-sponsored Special Applications Radioisotope Thermoelectric Generator (RTG) Technology Program and Two-Watt RTG Program has focused on terrestrial applications where the RTG will be exposed to relatively low temperature thermal environments (subsea). Thus, effort has been oriented towards design optimization at cold junction temperatures in the 10 to 93 {degree}C (50 to 200 {degree}F) range. However, for other more severe design environments (such as space applications where a high heat rejection radiator temperature in the 177 to 204 {degree}C (350 to 400 {degree}F) range is required to minimize RTG size and weight, and high g shock/vibration capability is necessary) a modified thermoelectric module design is dictated. In order to minimize the RTG system size and weight, and to increase the mechanical strength of the thermoelectric module to withstand increased dynamic loads, a close-packed-array (CPA) module configuration is desirable. The monolithic nature of such a module generally results in greater shear and compression load capability than free-standing individual couples. A CPA module is especially attractive for terrestrial and space applications where severe structural loads will be imposed such as airborne deployment or planetary landers and penetrators.

  15. UCLA Tokamak Program Close Out Report. (Technical Report) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    Close Cite: Bibtex Format Close 0 pages in this document matching the terms "" Search For Terms: Enter terms in the toolbar above to search the full text of this document for ...

  16. Value Engineering Study for Closing Waste Packages Containing TAD Canisters

    SciTech Connect (OSTI)

    Colleen Shelton-Davis

    2005-11-01

    The Office of Civilian Radioactive Waste Management announced their intention to have the commercial utilities package spent nuclear fuel in shielded, transportable, ageable, and disposable containers prior to shipment to the Yucca Mountain repository. This will change the conditions used as a basis for the design of the waste package closure system. The environment is now expected to be a low radiation, low contamination area. A value engineering study was completed to evaluate possible modifications to the existing closure system using the revised requirements. Four alternatives were identified and evaluated against a set of weighted criteria. The alternatives are (1) a radiation-hardened, remote automated system (the current baseline design); (2) a nonradiation-hardened, remote automated system (with personnel intervention if necessary); (3) a nonradiation-hardened, semi-automated system with personnel access for routine manual operations; and (4) a nonradiation-hardened, fully manual system with full-time personnel access. Based on the study, the recommended design is Alternative 2, a nonradiation-hardened, remote automated system. It is less expensive and less complex than the current baseline system, because nonradiation-hardened equipment can be used and some contamination control equipment is no longer needed. In addition, the inclusion of remote automation ensures throughput requirements are met, provides a more reliable process, and provides greater protection for employees from industrial accidents and radiation exposure than the semi-automated or manual systems. Other items addressed during the value engineering study as requested by OCRWM include a comparison to industry canister closure systems and corresponding lessons learned; consideration of closing a transportable, ageable, and disposable canister; and an estimate of the time required to perform a demonstration of the recommended closure system.

  17. UNDERSTANDING THE EVOLUTION OF CLOSE BINARY SYSTEMS WITH RADIO PULSARS

    SciTech Connect (OSTI)

    Benvenuto, O. G.; De Vito, M. A.

    2014-05-01

    We calculate the evolution of close binary systems (CBSs) formed by a neutron star (behaving as a radio pulsar) and a normal donor star, which evolve either to a helium white dwarf (HeWD) or to ultra-short orbital period systems. We consider X-ray irradiation feedback and evaporation due to radio pulsar irradiation. We show that irradiation feedback leads to cyclic mass transfer episodes, allowing CBSs to be observed in between episodes as binary radio pulsars under conditions in which standard, non-irradiated models predict the occurrence of a low-mass X-ray binary. This behavior accounts for the existence of a family of eclipsing binary systems known as redbacks. We predict that redback companions should almost fill their Roche lobe, as observed in PSR J1723-2837. This state is also possible for systems evolving with larger orbital periods. Therefore, binary radio pulsars with companion star masses usually interpreted as larger than expected to produce HeWDs may also result in such quasi-Roche lobe overflow states, rather than hosting a carbon-oxygen WD. We found that CBSs with initial orbital periods of P{sub i} < 1day evolve into redbacks. Some of them produce low-mass HeWDs, and a subgroup with shorter P{sub i} becomes black widows (BWs). Thus, BWs descend from redbacks, although not all redbacks evolve into BWs. There is mounting observational evidence favoring BW pulsars to be very massive (? 2 M {sub ?}). As they should be redback descendants, redback pulsars should also be very massive, since most of the mass is transferred before this stage.

  18. Gas/liquid sampler for closed canisters in KW Basin - test report

    SciTech Connect (OSTI)

    Pitkoff, C.C.

    1995-01-23

    Test report for the gas/liquid sampler designed and developed for sampling closed canisters in the KW Basin.

  19. Particle sorter comprising a fluid displacer in a closed-loop fluid circuit

    DOE Patents [OSTI]

    Perroud, Thomas D.; Patel, Kamlesh D.; Renzi, Ronald F.

    2012-04-24

    Disclosed herein are methods and devices utilizing a fluid displacer in a closed-loop fluid circuit.

  20. THE INTERSTELLAR MAGNETIC FIELD CLOSE TO THE SUN. II

    SciTech Connect (OSTI)

    Frisch, P. C.; Andersson, B-G; Berdyugin, A.; Piirola, V.; DeMajistre, R.; Funsten, H. O.; Magalhaes, A. M.; Seriacopi, D. B.; McComas, D. J.; Schwadron, N. A.; Slavin, J. D.; Wiktorowicz, S. J.

    2012-12-01

    The magnetic field in the local interstellar medium (ISM) provides a key indicator of the galactic environment of the Sun and influences the shape of the heliosphere. We have studied the interstellar magnetic field (ISMF) in the solar vicinity using polarized starlight for stars within 40 pc of the Sun and 90 Degree-Sign of the heliosphere nose. In Frisch et al. (Paper I), we developed a method for determining the local ISMF direction by finding the best match to a group of interstellar polarization position angles obtained toward nearby stars, based on the assumption that the polarization is parallel to the ISMF. In this paper, we extend the analysis by utilizing weighted fits to the position angles and by including new observations acquired for this study. We find that the local ISMF is pointed toward the galactic coordinates l, b =47 Degree-Sign {+-} 20 Degree-Sign , 25 Degree-Sign {+-} 20 Degree-Sign . This direction is close to the direction of the ISMF that shapes the heliosphere, l, b =33 Degree-Sign {+-} 4 Degree-Sign , 55 Degree-Sign {+-} 4 Degree-Sign , as traced by the center of the 'Ribbon' of energetic neutral atoms discovered by the Interstellar Boundary Explorer (IBEX) mission. Both the magnetic field direction and the kinematics of the local ISM are consistent with a scenario where the local ISM is a fragment of the Loop I superbubble. A nearby ordered component of the local ISMF has been identified in the region l Almost-Equal-To 0 Degree-Sign {yields} 80 Degree-Sign and b Almost-Equal-To 0 Degree-Sign {yields} 30 Degree-Sign , where PlanetPol data show a distance-dependent increase of polarization strength. The ordered component extends to within 8 pc of the Sun and implies a weak curvature in the nearby ISMF of {approx}0.{sup 0}25 pc{sup -1}. This conclusion is conditioned on the small sample of stars available for defining this rotation. Variations from the ordered component suggest a turbulent component of {approx}23 Degree-Sign . The ordered component and standard relations between polarization, color excess, and H{sup o} column density predict a reasonable increase of N(H) with distance in the local ISM. The similarity of the ISMF directions traced by the polarizations, the IBEX Ribbon, and pulsars inside the Local Bubble in the third galactic quadrant suggest that the ISMF is relatively uniform over spatial scales of 8-200 pc and is more similar to interarm than spiral-arm magnetic fields. The ISMF direction from the polarization data is also consistent with small-scale spatial asymmetries detected in GeV-TeV cosmic rays with a galactic origin. The peculiar geometrical relation found earlier between the cosmic microwave background dipole moment, the heliosphere nose, and the ISMF direction is supported by this study. The interstellar radiation field at {approx}975 A does not appear to play a role in grain alignment for the low-density ISM studied here.

  1. A Big Step Increase in the EM Technology Development (TD) Program - Closing

    Energy Savers [EERE]

    | Department of Energy A Big Step Increase in the EM Technology Development (TD) Program - Closing A Big Step Increase in the EM Technology Development (TD) Program - Closing Presentation from the 2015 DOE National Cleanup Workshop by Rod Rimando, Senior Technical Adviser, DOE-EM. PDF icon A Big Step Increase in the EM Technology Development (TD) Program - Closing More Documents & Publications NSU Norfolk State University Nuclear Rocket Development Station at the Nevada Test Site

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

    DOE Patents [OSTI]

    Hansen, R. Anthony

    2014-02-18

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

  3. Solving Problems with Sequences (Closing Keynote Address - 2010 JGI User Meeting)

    ScienceCinema (OSTI)

    Colwell, Rita

    2011-04-28

    Rita Colwell, recipient of the 2010 Stockholm Water Prize, delivers the closing keynote at the 5th Annual DOE JGI User Meeting on March 26, 2010

  4. Energy Smart Grocer Program- FY2016 Close-Out Form Customer

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

    Grocer Program- FY2016 Close-Out Form Customer Authorized Representative Name Contact Person Phone If this is a revision, please fully complete the form with the changed...

  5. SRS Crosses Halfway Mark on Closing Another High-Level Waste Tank |

    Energy Savers [EERE]

    Department of Energy SRS Crosses Halfway Mark on Closing Another High-Level Waste Tank SRS Crosses Halfway Mark on Closing Another High-Level Waste Tank February 25, 2016 - 12:20pm Addthis Work is more than halfway complete on grouting Tank 12, the eighth to be operationally closed at Savannah River Site. Work is more than halfway complete on grouting Tank 12, the eighth to be operationally closed at Savannah River Site. AIKEN, S.C. - Savannah River Site (SRS) moved past the halfway mark

  6. Microsoft PowerPoint - Closing Summary_Brian Horn_Pete Dessaules...

    National Nuclear Security Administration (NNSA)

    SummaryClosing Discussions Pete Dessaules, NNSA Brian Horn, NRC James Crabtree, NNSA Summary Multiple presentations focused on the relevancy and significance of NMMSS to: -...

  7. Closed Lab Announcements | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Sort by: Post Date | Close Date Climate Model Development and Validation .pdf file (202KB) ... AM Eastern Time. Regional Models for Climate Change Integrated Assessment .pdf file ...

  8. ORC Closed Loop Control Systems for Transient and Steady State Duty Cycles

    Broader source: Energy.gov [DOE]

    System-level models using iterative concept analysis are being used on a closed loop controlled, waste heat recovery system running automatically over various drive cycles.

  9. Posting Date: 12/18/15 Posting Close Date: 1/4/16

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

    815 Posting Close Date: 1416 North American Industry Classification System (NAICS) code for the request: 336211 Estimated SubcontractPO Value: TBD Estimated Period of...

  10. Posting Date: 12/17/15 Posting Close Date: 12/24/15

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

    715 Posting Close Date: 122415 North American Industry Classification System (NAICS) code for the request: 236220 Estimated SubcontractPO Value: TBD Estimated Period of...

  11. Closed Lab Announcements | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Lab Announcements Advanced Scientific Computing Research (ASCR) ASCR Home About Research Facilities Science Highlights Benefits of ASCR Funding Opportunities Closed Funding ...

  12. Fact #850: December 8, 2014 Automatic Transmissions have closed the Fuel Economy Gap with Manual Transmissions

    Broader source: Energy.gov [DOE]

    Historically, manual transmissions have delivered better fuel economy than automatic transmissions. However, improvements in the efficiency of automatic transmissions have closed that gap in recent...

  13. EERE Success Story-SolarTech: Sun Sets on Yesterday's Solar Permitting...

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

    "Our permitting best practices document explains what we've done and how others can do it," said Danielle Murray, Renewable Energy Program Manager for the San Francisco Department ...

  14. GE Progress Includes 140 Things We Made Yesterday | GE Global Research

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

    Power of Networks in an Age of Gas Peter Evans, PhD Director Global Strategy & Analytics General Electric 2013 EIA Energy Conference June 17-18, 2013 Washington, DC 2 2013 EIA Energy Conference General Electric © 2013 - All Rights Reserved Sources of competitive advantage Thomas Edison - GE Founder Natural endowments Creative endowments The U.S. is rich in both 3 2013 EIA Energy Conference General Electric © 2013 - All Rights Reserved Physical and digital infrastructure Advantage of

  15. Closing Plenary

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

    should consider establishing an employee charging policy from the get-go...not waiting until problems arise * Need for sample HR policies for workplace charging and tips on ...

  16. Closing Plenary

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

    1, Track B: Data insights for workplace charging planning * Important to track evolution in workplace charging behavior * Need solid figures on charging station hardware and...

  17. Closing Remarks

    Broader source: Energy.gov [DOE]

    Presentation at the EV Everywhere Grand Challenge Kick-Off meeting held on June 21, 2012 at the Hyatt Regency, Dearborn, MI.

  18. On the reversibility of transitions between closed and open cellular convection

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

    Feingold, G.; Koren, I.; Yamaguchi, T.; Kazil, J.

    2015-02-26

    The two-way transition between closed and open cellular convection is addressed in an idealized cloud resolving modeling framework. A series of cloud resolving simulations shows that the transition between closed and open cellular states is asymmetrical, and characterized by a rapid ("runaway") transition from the closed- to the open-cell state, but slower recovery to the closed-cell state. Given that precipitation initiates the closed-open cell transition, and that the recovery requires a suppression of the precipitation, we apply an ad hoc time-varying drop concentration to initiate and suppress precipitation. We show that the asymmetry in the two-way transition occurs even formore » very rapid drop concentration replenishment. The primary barrier to recovery is the loss in turbulence kinetic energy (TKE) associated with the loss in cloud water (and associated radiative cooling), and the stabilization of the boundary layer during the open-cell period. In transitioning from the open to the closed state, the system faces the Sisyphusian task of replenishing cloud water fast enough to counter precipitation losses, such that it can generate radiative cooling and TKE. Recovery to the closed cell state is slower when radiative cooling is inefficient such as in the presence of free tropospheric clouds, or after sunrise, when it is hampered by the absorption of shortwave radiation. Tests suggest that a faster return to the closed-cell state requires that the drop concentration recovery be accompanied by significant dynamical forcing, e.g., via an increase in surface latent and sensible heat fluxes. This is supported by simulations with a simple predator-prey dynamical system analogue. It is suggested that the observed closing of open cells by ship effluent likely occurs when aerosol intrusions are large, when contact comes prior to the heaviest drizzle in the early morning hours, and when the free troposphere is cloud-free.« less

  19. Closed cycle ion exchange method for regenerating acids, bases and salts

    DOE Patents [OSTI]

    Dreyfuss, Robert M.

    1976-01-01

    A method for conducting a chemical reaction in acidic, basic, or neutral solution as required and then regenerating the acid, base, or salt by means of ion exchange in a closed cycle reaction sequence which comprises contacting the spent acid, base, or salt with an ion exchanger, preferably a synthetic organic ion-exchange resin, so selected that the counter ions thereof are ions also produced as a by-product in the closed reaction cycle, and then regenerating the spent ion exchanger by contact with the by-product counter ions. The method is particularly applicable to closed cycle processes for the thermochemical production of hydrogen.

  20. SunShot Summit Registration Closes May 9 | Department of Energy

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

    Registration Closes May 9 SunShot Summit Registration Closes May 9 May 9, 2014 - 9:24am Addthis As a reminder, online registration for the SunShot Grand Challenge Summit closes Friday, May 9. We kindly ask that all interested participants please register by the deadline. We are happy to announce another exciting addition to our program! To help address non-hardware or "soft" costs, SunShot and the National Renewable Energy Laboratory are hosting the first ever SunShot Hackathon. Teams

  1. Main Sidewalk from CEBAF Center Circle to TED is CLOSED to All Pedestrians

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

    til Further Notice | Jefferson Lab Main Sidewalk from CEBAF Center Circle to TED is CLOSED to All Pedestrians til Further Notice Main Sidewalk from CEBAF Center Circle to TED is CLOSED to All Pedestrians til Further Notice To facilitate contractor excavation work that is underway, and to ensure the safety of workers and members of the JLab community, the main sidewalk stretching between the CEBAF Center Circle and the front of the TED building (Bldg. 55) is closed. It is currently a

  2. Closed Lab Announcements | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Print Text Size: A A A FeedbackShare Page Fiscal Year: Select 2016 2015 2014 2013 2012 ... Announcement Number: LAB 16 1438 Post Date: October 13, 2015 Close Date: December 21, 2015 ...

  3. A Closely-Spaced Magnetotelluric Study Of The Ahuachapan-Chipilapa...

    Open Energy Info (EERE)

    Closely-Spaced Magnetotelluric Study Of The Ahuachapan-Chipilapa Geothermal Field, El Salvador Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: A...

  4. Method and apparatus for improving the insulating properties of closed cell foam

    DOE Patents [OSTI]

    Glicksman, Leon R.; Lanciani, Arlene J.

    1991-04-23

    A filler of non-metallic, light transparent material is formed into particles or flakes and coated with opaque material and dispersed in closed cell foam to reduce overall thermal conductivity and, specifically, to reduce radiation heat transfer.

  5. ETA-HIAC01 - Control, Close-out and Storage of Documentation

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

    ... Donald B. Karner Procedure ETA-HIAC01 Revision 0 2 2004 Electric ... Appendix A - Document Close-outRetention Rider 10 Procedure ETA-HIAC01 Revision 0 3 ...

  6. ETA-NAC001 - Control, Close-out and Storage of Documentation

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

    ... Donald B. Karner Procedure ETA-NAC001 Revision 0 2 2001 Electric ... Appendix A - Document Close-outRetention Rider 8 Procedure ETA-NAC001 Revision 0 3 ...

  7. ETA-HAC01 - Control, Close-out and Storage of Documentation

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

    ... Donald B. Karner Procedure ETA-HAC01 Revision 0 2 2004 Electric ... Appendix A - Document Close-outRetention Rider 10 Procedure ETA-HAC01 Revision 0 3 ...

  8. ETA-UAC01 - Control, Close-out and Storage of Documentation

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

    ... Donald B. Karner Procedure ETA-UAC01 Revision 0 2 2001 Electric ... Appendix A - Document Close-outRetention Rider 10 Procedure ETA-UAC01 Revision 0 3 2001 ...

  9. The Office of Electricity Delivery and Energy Reliability is Closely Monitoring Hurricane Irene (2011)

    Broader source: Energy.gov [DOE]

    The Department of Energy’s (DOE) Office of Electricity Delivery and Energy Reliability (OE) is closely monitoring Hurricane Irene as it travels up the U.S. coast and is publishing Situation Reports.

  10. ICFT- An Initial Closed-Loop Flow Test of the Fenton Hill Phase...

    Open Energy Info (EERE)

    ICFT- An Initial Closed-Loop Flow Test of the Fenton Hill Phase II HDR Reservoir Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: ICFT- An Initial...

  11. Idaho Site Closes Out Decontamination and Decommissioning Project about $440 Million under Cost

    Broader source: Energy.gov [DOE]

    IDAHO FALLS, Idaho – The Idaho Cleanup Project (ICP) successfully closed out a $796 million nuclear facility decontamination and decommissioning project. The work was completed about $440 million under cost.

  12. Terra-Gen Power closes US$286m lease financing for Dixie Valley...

    Open Energy Info (EERE)

    Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Terra-Gen Power closes US286m lease financing for Dixie Valley Abstract NA Author Think...

  13. LBNL Report-54360 ATF-03-09 Closed Orbit Response to Quadrupole Strength Variation

    Office of Scientific and Technical Information (OSTI)

    1 LBNL Report-54360 ATF-03-09 Closed Orbit Response to Quadrupole Strength Variation A. Wolski Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720 F. Zimmermann CERN January 20 th , 2004 Abstract We derive two formulae relating the variation in closed orbit in a storage ring to variations in quadrupole strength, neglecting nonlinear and dispersive effects. These formulae correct results previously reported [1,2,3]. We compare the results of the formulae applied to the ATF

  14. Binary and ternary gas mixtures for use in glow discharge closing switches

    DOE Patents [OSTI]

    Hunter, Scott R.; Christophorou, Loucas G.

    1990-01-01

    Highly efficient binary and ternary gas mixtures for use in diffuse glow discharge closing switches are disclosed. The binary mixtures are combinations of helium or neon and selected perfluorides. The ternary mixtures are combinations of helium, neon, or argon, a selected perfluoride, and a small amount of gas that exhibits enhanced ionization characteristics. These mixtures are shown to be the optimum choices for use in diffuse glow discharge closing switches by virtue of the combined physio-electric properties of the mixture components.

  15. Effective Feb15 JLab Entrance at Lawrence Drive to Close | Jefferson Lab

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

    Effective Feb15 JLab Entrance at Lawrence Drive to Close Effective Feb. 15: Jefferson Lab Entrance at Lawrence Drive to Close for Sewer Main Installation Hampton Roads Sanitation District is installing a 30-inch sewer main on Department of Energy property adjacent to Jefferson Avenue. One section of the line is being installed just outside the accelerator site fence and along Jefferson Avenue. Installation will now proceed under Lawrence Drive from the intersection of Lawrence and Jefferson

  16. A Practical Approach to a Closed Nuclear Fuel Cycle and Sustained Nuclear

    Office of Scientific and Technical Information (OSTI)

    Energy (Conference) | SciTech Connect Conference: A Practical Approach to a Closed Nuclear Fuel Cycle and Sustained Nuclear Energy Citation Details In-Document Search Title: A Practical Approach to a Closed Nuclear Fuel Cycle and Sustained Nuclear Energy No abstract prepared. Authors: Collins, Emory D [1] ; Del Cul, Guillermo [1] ; Spencer, Barry B [1] ; Williams, Kent Alan [1] + Show Author Affiliations ORNL Publication Date: 2012-01-01 OSTI Identifier: 1042871 DOE Contract Number:

  17. Accelerator-driven subcritical fission in molten salt core: Closing the

    Office of Scientific and Technical Information (OSTI)

    nuclear fuel cycle for green nuclear energy (Journal Article) | SciTech Connect Accelerator-driven subcritical fission in molten salt core: Closing the nuclear fuel cycle for green nuclear energy Citation Details In-Document Search Title: Accelerator-driven subcritical fission in molten salt core: Closing the nuclear fuel cycle for green nuclear energy A technology for accelerator-driven subcritical fission in a molten salt core (ADSMS) is being developed as a basis for the destruction of

  18. Keeping the Ions Close: A New Activity | U.S. DOE Office of Science (SC)

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

    Keeping the Ions Close: A New Activity Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) Community Resources Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3081 F: (301) 903-6594 E: Email Us More Information » 08.01.15 Keeping the Ions Close: A New Activity Study changes

  19. EERE Success Story-Doosan Fuel Cell Takes Closed Plant to Full Production

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

    | Department of Energy Doosan Fuel Cell Takes Closed Plant to Full Production EERE Success Story-Doosan Fuel Cell Takes Closed Plant to Full Production December 8, 2015 - 12:06pm Addthis Photo Courtesy | Doosan Fuel Cell America, Inc. Photo Courtesy | Doosan Fuel Cell America, Inc. Doosan Fuel Cell, a Connecticut company which designs, engineers and manufactures clean energy fuel cell systems that produce combined heat and power systems, began operations in July 2014 at its corporate

  20. Department of Energy Closes $400 Million Loan Guarantee for State of the

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

    Art Solar Manufacturing in Indiana and Colorado | Department of Energy Closes $400 Million Loan Guarantee for State of the Art Solar Manufacturing in Indiana and Colorado Department of Energy Closes $400 Million Loan Guarantee for State of the Art Solar Manufacturing in Indiana and Colorado December 14, 2010 - 12:00am Addthis Washington D.C. - U.S. Energy Secretary Steven Chu announced today that a $400 million loan guarantee has been finalized for Abound Solar Manufacturing, LLC to

  1. Closed Lab Announcements | U.S. DOE Office of Science (SC)

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

    Lab Announcements Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Closed Funding Opportunity Announcements (FOAs) Closed Lab Announcements Award Search / Public Abstracts Additional Requirements and Guidance for Digital Data Management Peer Review Policies EFRCs FOA Applications from Universities and Other Research Institutions Construction Review EPSCoR DOE Office of Science Graduate Fellowship (DOE SCGF) External link

  2. Closed Lab Announcements | U.S. DOE Office of Science (SC)

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

    Lab Announcements Fusion Energy Sciences (FES) FES Home About Research Facilities Science Highlights Benefits of FES Funding Opportunities Closed Funding Opportunity Announcements (FOAs) Closed Lab Announcements Award Search / Public Abstracts Additional Requirements and Guidance for Digital Data Management Fusion Energy Sciences Advisory Committee (FESAC) Community Resources Contact Information Fusion Energy Sciences U.S. Department of Energy SC-24/Germantown Building 1000 Independence Ave., SW

  3. Closed Lab Announcements | U.S. DOE Office of Science (SC)

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

    DOE National Laboratory Announcements » Closed Lab Announcements Grants & Contracts Support Grants & Contracts Support Home About Funding Opportunity Announcements (FOAs) DOE National Laboratory Announcements Open Lab Announcements Closed Lab Announcements Grants Process Grants Policy and Guidance FAQs Resources Contract Information Contact Information Grants & Contracts Support U.S. Department of Energy SC-43/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 E:

  4. Method of determining the open circuit voltage of a battery in a closed circuit

    DOE Patents [OSTI]

    Brown, William E.

    1980-01-01

    The open circuit voltage of a battery which is connected in a closed circuit is determined without breaking the circuit or causing voltage upsets therein. The closed circuit voltage across the battery and the current flowing through it are determined under normal load and then a fractional change is made in the load and the new current and voltage values determined. The open circuit voltage is then calculated, according to known principles, from the two sets of values.

  5. High Impact Technology Hub- Resources for Evaluators- Site Evaluation Checklists

    Broader source: Energy.gov [DOE]

    The HIT Catalyst conducts technology demonstrations in three main phases govern demonstrations: Site Evaluation, Selection and Project Kick-Off, Measurement and Verification Scoping and Plan...

  6. Signed Quality Assurance Hub Memo | Department of Energy

    Energy Savers [EERE]

    Side Stream Filtration for Cooling Towers Side Stream Filtration for Cooling Towers Report assesses side stream filtration options for cooling towers with an objective to assess key attributes that optimize energy and water savings and provide information about specific technology and implementation options. This information can be used to assist Federal sites to determine which options may be most appropriate for their applications. This report provides an overview of the characterization of

  7. Students Imagine Paducah Site as Technical, Industrial Hub | Department of

    Energy Savers [EERE]

    Department of Energy Drive Home Innovative Engineering in the EcoCAR2 Competition Students Drive Home Innovative Engineering in the EcoCAR2 Competition April 18, 2011 - 1:52pm Addthis Participants in the EcoCar2 challenge gather for the spring workshop in Ann Arbor, Michigan. Participants in the EcoCar2 challenge gather for the spring workshop in Ann Arbor, Michigan. What does this project do? Engineering students work to re-engineer a standard vehicle, minimizing fuel consumption and

  8. Henry Hub Natural Gas Spot Price (Dollars per Million Btu)

    U.S. Energy Information Administration (EIA) Indexed Site

    Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 2.49 2.09 2.27 2000's 4.31 3.96 3.38 5.47 5.89 8.69 6.73 6.97 8.86 3.94 2010's 4.37 4.00 2.75 3.73 4.37 2.62

  9. Henry Hub Natural Gas Spot Price (Dollars per Million Btu)

    U.S. Energy Information Administration (EIA) Indexed Site

    Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1997 3.45 2.15 1.89 2.03 2.25 2.20 2.19 2.49 2.88 3.07 3.01 2.35 1998 2.09 2.23 2.24 2.43 2.14 2.17 2.17 1.85 2.02 1.91 2.12 1.72 1999 1.85 1.77 1.79 2.15 2.26 2.30 2.31 2.80 2.55 2.73 2.37 2.36 2000 2.42 2.66 2.79 3.04 3.59 4.29 3.99 4.43 5.06 5.02 5.52 8.90 2001 8.17 5.61 5.23 5.19 4.19 3.72 3.11 2.97 2.19 2.46 2.34 2.30 2002 2.32 2.32 3.03 3.43 3.50 3.26 2.99 3.09 3.55 4.13 4.04 4.74 2003 5.43 7.71 5.93 5.26 5.81 5.82 5.03 4.99 4.62 4.63

  10. Henry Hub Natural Gas Spot Price (Dollars per Million Btu)

    U.S. Energy Information Administration (EIA) Indexed Site

    Year-Month Week 1 Week 2 Week 3 Week 4 Week 5 End Date Value End Date Value End Date Value End Date Value End Date Value 1997-Jan 01/10 3.79 01/17 4.19 01/24 2.98 01/31 2.91 1997-Feb 02/07 2.53 02/14 2.30 02/21 1.91 02/28 1.82 1997-Mar 03/07 1.86 03/14 1.96 03/21 1.91 03/28 1.84 1997-Apr 04/04 1.88 04/11 1.98 04/18 2.04 04/25 2.14 1997-May 05/02 2.15 05/09 2.29 05/16 2.22 05/23 2.22 05/30 2.28 1997-Jun 06/06 2.17 06/13 2.16 06/20 2.22 06/27 2.27 1997-Jul 07/04 2.15 07/11 2.15 07/18 2.24 07/25

  11. Modeling and Simulation for Nuclear Reactors Hub | Department...

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

    ... Broadly, CASL's mission is to develop and apply M&S capabilities to address three critical areas of performance for nuclear power plants (NPPs): Capital and operating costs per ...

  12. Report of the SEAB Hubs+ Task Force | Department of Energy

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

    the new Funding Constructs for Energy Research and Development (R&D) in the Department of Energy. The Task Force was charged with assisting the DOE in evaluating the management and...

  13. Light Water Reactors A DOE Energy Innovation Hub for Modeling...

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

    and Simulation of Nuclear Reactors CASL is focused on three issues for nuclear energy: reducing cost, reducing the amount of used nuclear fuel, and safety. CASL core...

  14. Henry Hub Natural Gas Spot Price (Dollars per Million Btu)

    U.S. Energy Information Administration (EIA) Indexed Site

    Week Of Mon Tue Wed Thu Fri 1997 Jan- 6 to Jan-10 3.82 3.80 3.61 3.92 1997 Jan-13 to Jan-17 4.00 4.01 4.34 4.71 3.91 1997 Jan-20 to Jan-24 3.26 2.99 3.05 2.96 2.62 1997 Jan-27 to Jan-31 2.98 3.05 2.91 2.86 2.77 1997 Feb- 3 to Feb- 7 2.49 2.59 2.65 2.51 2.39 1997 Feb-10 to Feb-14 2.42 2.34 2.42 2.22 2.12 1997 Feb-17 to Feb-21 1.84 1.95 1.92 1.92 1997 Feb-24 to Feb-28 1.92 1.77 1.81 1.80 1.78 1997 Mar- 3 to Mar- 7 1.80 1.87 1.92 1.82 1.89 1997 Mar-10 to Mar-14 1.95 1.92 1.96 1.98 1.97 1997 Mar-17

  15. Metis Hub: The Development of an Intuitive Project Planning System

    SciTech Connect (OSTI)

    McConnell, Rachael M.

    2015-08-26

    The goal is to develop an intuitive, dynamic, and consistent interface for the Metis Planning System by combining user requirements and human engineering concepts. The system is largely based upon existing systems so some tools already have working models that we can follow. However, the web-based interface is completely new.

  16. Admiralty Inlet Hub-Height Turbulence Measurements from June 2012

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

    Levi Kilcher

    2012-06-18

    This data is from measurements at Admiralty Head, in admiralty inlet. The measurements were made using an IMU equipped ADV mounted on a mooring, the 'Tidal Turbulence Mooring' or 'TTM'. The inertial measurements from the IMU allows for removal of mooring motion in post processing. The mooring motion has been removed from the stream-wise and vertical velocity signals (u, w). The lateral (v) velocity may have some 'persistent motion contamination' due to mooring sway. The ADV was positioned 11m above the seafloor in 58m of water at 48.1515N, 122.6858W. Units ----- - Velocity data (_u, urot, uacc) is in m/s. - Acceleration (Accel) data is in m/s^2. - Angular rate (AngRt) data is in rad/s. - The components of all vectors are in 'ENU' orientation. That is, the first index is True East, the second is True North, and the third is Up (vertical). - All other quantities are in the units defined in the Nortek Manual. Motion correction and rotation into the ENU earth reference frame was performed using the Python-based open source DOLfYN library (http://lkilcher.github.io/dolfyn/). Details on motion correction can be found there. For additional details on this dataset see the included Marine Energy Technology Symposium paper.

  17. High Impact Technology Hub - Resources for Evaluators - General...

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

    M&V Guidelines: Measurement and Verification for Federal Energy Projects (Version 4.0) Assessment of Evaluation, Measurement, and Verification Methods - 2014 BTO Peer Review ...

  18. High Impact Technology Hub- Provide Information about Technologies

    Broader source: Energy.gov [DOE]

    The Energy Department identifies and compiles inputs on technologies through a variety of engagement activities including Requests for Information (RFIs), workshops, discussion forums and ongoing...

  19. High Impact Technology Hub- Resources for Evaluators- General Templates

    Broader source: Energy.gov [DOE]

    The HIT Catalyst conducts technology demonstrations in three main phases: Site Evaluation, Selection and Project Kick-Off, Measurement and Verification Scoping and Plan Development. The following Templates were developed in collaboration with third party evaluators, the Energy Department, and technology providers as a part of recent demonstration projects.

  20. Critical Materials Institute An Energy Innovation Hub Alexander King, Director

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

    Criminal Investigator Criminal Investigator Special Agent Responsibilities The Office of Investigations conducts investigations of DOE personnel, contractors, and others receiving DOE funds concerning alleged violations of law that impact DOE programs, operations, facilities, and personnel. Examples of issues investigated by the OIG include soliciting and/or accepting a bribe, overcharging the Government on contracts and grants, providing false data and information, supplying defective or

  1. ,"Henry Hub Natural Gas Spot Price (Dollars per Million Btu)...

    U.S. Energy Information Administration (EIA) Indexed Site

    Daily","5232016" ,"Release Date:","5252016" ,"Next Release Date:","622016" ,"Excel File Name:","rngwhhdd.xls" ,"Available from Web Page:","http:tonto.eia.govdnavnghist...

  2. DataHub project (Smart Grid Project) | Open Energy Information

    Open Energy Info (EERE)

    for consumers who choose to switch supplier, a desire for more standardized communication between players on the Danish electricity market. References "EU Smart Grid...

  3. Henry Hub Natural Gas Spot Price (Dollars per Million Btu)

    Gasoline and Diesel Fuel Update (EIA)

    Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1997 3.45 2.15 1.89 2.03 2.25 2.20 2.19 2.49 2.88 3.07 3.01 2.35 1998 2.09 2.23 2.24 2.43 2.14 2.17 2.17 1.85 2.02 1.91 2.12...

  4. Central Networks Low Carbon Hub Optimizing renewable energy resources...

    Open Energy Info (EERE)

    Other Additional Comments Cancel Submit Categories: Smart Grid Projects Smart Grid Projects in Europe Smart Grid Projects - Grid Automation Distribution Smart Grid Projects - Other...

  5. {open_quotes}Rosshelf{close_quotes} company and development of the Arctic Shelf of Russia

    SciTech Connect (OSTI)

    Velikhov, E.P.

    1994-09-01

    The Russian {open_quotes}Rosshelf{close_quotes} company for developing the shelf is the nucleus of a new branch of industry for developing oil and gas fields on shelves of Russia, primarily in the Arctic. {open_quotes}Rosshelf{close_quotes}, created on the basis of leading naval defence enterprises, Russia`s largest geological and mining enterprises, and territorial organizations managing the northern regions of Russia, obtained a license in March 1993 for the right to use the natural resources of Europe`s largest Shtokman gas-condensate field and Prirazlomnoe oil field in the Barents Sea and thus has all the conditions and possibilities for the successful organization of oil and gas production on the continental shelf of Russia. The goals of {open_quotes}Rosshelf{close_quotes} are: the production of oil and gas equipment at converted defence enterprises, including under foreign license and for export; the development of oil and gas fields on the continental shelf of Russia; the creation of new prospective technologies for offshore oil and gas production under conditions of the Russian and mainly the arctic shelf. {open_quotes}Rosshelf{close_quotes} should develop the Pechora Sea fields, mainly the Prirazlomnoe oil field with its relatively small depth and distance from the shore. It is planned to develop Europe`s largest Shtokman field at a distance of 600 km from the shore in the course of 10-12 years with expenditures of about $6 billion. The use of defence technologies underlying the activities of {open_quotes}Rosshelf{close_quotes} gives the company a real change to reach the world level of offshore oil- and gas-production technology. Broad cooperation with foreign companies, mainly in the area of engineering, finances, ecology, and safety, planned also for this. Calculations show that already the priority projects of {open_quotes}Rosshelf{close_quotes} will provide 250,000-300,000 highly skilled jobs at Russian defence enterprises.

  6. Using NERSC Systems, Physicists Close In on a Rare-Particle Decay Process

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

    Using NERSC Systems, Physcists Close in on a Rare-Particle Decay Process Using NERSC Systems, Physicists Close In on a Rare-Particle Decay Process Underground Experiment May Unlock the Mysteries of the Neutrino June 11, 2012 NERSC Contact: Linda Vu, lvu@lbl.gov, +1 510 495 2402 exo-1.jpg Located at the Waste Isolation Pilot Plant near Carlsbad, New Mexico, EXO-200 is a 200-kg detector using liquid xenon, enriched in the isotope 136, to detect "neutrino-less double beta decay." With

  7. Binary and ternary gas mixtures for use in glow discharge closing switches

    DOE Patents [OSTI]

    Hunter, S.R.; Christophorou, L.G.

    1988-04-27

    Highly efficient binary and ternary gas mixtures for use in diffuse glow discharge closing switches are disclosed. The binary mixtures are combinations of helium or neon and selected perfluorides. The ternary mixtures are combinations of helium, neon, or argon, a selected perfluoride, and a small amount of gas that exhibits enhanced ionization characteristics. These mixtures are shown to be the optimum choices for use in diffuse glow discharge closing switches by virtue if the combines physio-electric properties of the mixture components. 9 figs.

  8. LANL closes road, trails for safety reasons; flooding and erosion control

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

    work under way Road, trails closed for safety reasons LANL closes road, trails for safety reasons; flooding and erosion control work under way Closure is in response to the increased fire risk and danger of flash flooding. July 8, 2011 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new

  9. New Pilot Accepting Small Business Requests to Work Closely with Labs |

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

    Department of Energy Pilot Accepting Small Business Requests to Work Closely with Labs New Pilot Accepting Small Business Requests to Work Closely with Labs September 23, 2015 - 7:26am Addthis Pacific Northwest National Laboratory’s prototype thermochemical conversion device, funded by EERE and a natural gas company, is installed in front of a concentrating solar power dish. The device converts natural gas into the more energy-rich fuel syngas. Small clean tech businesses may be

  10. Closing in on a Short-Hard Burst Progenitor: Constraints From Early-Time

    Office of Scientific and Technical Information (OSTI)

    Optical Imaging and Spectroscopy of a Possible Host Galaxy of GRB 050509b (Journal Article) | SciTech Connect Closing in on a Short-Hard Burst Progenitor: Constraints From Early-Time Optical Imaging and Spectroscopy of a Possible Host Galaxy of GRB 050509b Citation Details In-Document Search Title: Closing in on a Short-Hard Burst Progenitor: Constraints From Early-Time Optical Imaging and Spectroscopy of a Possible Host Galaxy of GRB 050509b The localization of the short-duration,

  11. On the reversibility of transitions between closed and open cellular convection

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

    Feingold, G.; Koren, I.; Yamaguchi, T.; Kazil, J.

    2015-07-08

    The two-way transition between closed and open cellular convection is addressed in an idealized cloud-resolving modeling framework. A series of cloud-resolving simulations shows that the transition between closed and open cellular states is asymmetrical and characterized by a rapid ("runaway") transition from the closed- to the open-cell state but slower recovery to the closed-cell state. Given that precipitation initiates the closed–open cell transition and that the recovery requires a suppression of the precipitation, we apply an ad hoc time-varying drop concentration to initiate and suppress precipitation. We show that the asymmetry in the two-way transition occurs even for very rapidmore » drop concentration replenishment. The primary barrier to recovery is the loss in turbulence kinetic energy (TKE) associated with the loss in cloud water (and associated radiative cooling) and the vertical stratification of the boundary layer during the open-cell period. In transitioning from the open to the closed state, the system faces the task of replenishing cloud water fast enough to counter precipitation losses, such that it can generate radiative cooling and TKE. It is hampered by a stable layer below cloud base that has to be overcome before water vapor can be transported more efficiently into the cloud layer. Recovery to the closed-cell state is slower when radiative cooling is inefficient such as in the presence of free tropospheric clouds or after sunrise, when it is hampered by the absorption of shortwave radiation. Tests suggest that recovery to the closed-cell state is faster when the drizzle is smaller in amount and of shorter duration, i.e., when the precipitation causes less boundary layer stratification. Cloud-resolving model results on recovery rates are supported by simulations with a simple predator–prey dynamical system analogue. It is suggested that the observed closing of open cells by ship effluent likely occurs when aerosol intrusions are large, when contact comes prior to the heaviest drizzle in the early morning hours, and when the free troposphere is cloud free.« less

  12. Existence of standard models of conic fibrations over non-algebraically-closed fields

    SciTech Connect (OSTI)

    Avilov, A A

    2014-12-31

    We prove an analogue of Sarkisov's theorem on the existence of a standard model of a conic fibration over an algebraically closed field of characteristic different from two for three-dimensional conic fibrations over an arbitrary field of characteristic zero with an action of a finite group. Bibliography: 16 titles.

  13. Microsoft PowerPoint - TD 06 - NCW 2015 - TD Session 150929 Rimando Closing

    Office of Environmental Management (EM)

    Closing Office of Environmental Management MARS SCIENCE LABORATORY CURIOSITY ROVER MISSION INVESTIGATE WHETHER CONDITIONS HAVE BEEN FAVORABLE FOR MICROBIAL LIFE AND FOR PRESERVING CLUES IN THE ROCKS ABOUT POSSIBLE PAST LIFE. MARS SCIENCE LABORATORY CURIOSITY ROVER * GAS CHROMATOGRAPH * MASS SPECTROMETER * TUNABLE LASER SPECTROMETER PRINCIPAL INVESTIGATOR: NASA'S GODDARD SPACE FLIGHT CENTER GREENBELT, MD SAMPLE ANALYSIS AT MARS * X-RAY DIFFRACTION AND FLUORESCENCE INSTRUMENT PRINCIPAL

  14. USING ORBITAL EFFECTS TO BREAK THE CLOSE/WIDE DEGENERACY IN BINARY-LENS MICROLENSING EVENTS

    SciTech Connect (OSTI)

    Shin, I.-G.; Choi, J. Y.; Han, C.; Sumi, T.; Udalski, A.; Gould, A.; Abe, F.; Furusawa, K.; Itow, Y.; Masuda, K.; Matsubara, Y.; Miyake, N.; Bennett, D. P.; Bond, I. A.; Ling, C. H.; Botzler, C. S.; Freeman, M.; Chote, P.; Harris, P.; Fukui, A.; Collaboration: MOA Collaboration; OGLE Collaboration; and others

    2013-02-10

    Microlensing can provide an important tool to study binaries, especially those composed of faint or dark objects. However, accurate analysis of binary-lens light curves is often hampered by the well-known degeneracy between close (s < 1) and wide (s > 1) binaries, which can be very severe due to an intrinsic symmetry in the lens equation. Here, s is the normalized projected binary separation. In this paper, we propose a method that can resolve the close/wide degeneracy using the effect of a lens orbital motion on lensing light curves. The method is based on the fact that the orbital effect tends to be important for close binaries while it is negligible for wide binaries. We demonstrate the usefulness of the method by applying it to an actually observed binary-lens event MOA-2011-BLG-040/OGLE-2011-BLG-0001, which suffers from severe close/wide degeneracy. From this, we are able to uniquely specify that the lens is composed of K- and M-type dwarfs located {approx}3.5 kpc from the Earth.

  15. DOE Award # DE-SC0008085 Close-Out Report for UIUC Portion of Grant

    SciTech Connect (OSTI)

    Teixeira, Kristina Anderson; DeLucia, Evan H

    2014-11-20

    This is the final technical report for the University of Illinois (UIUC) portion of grant # SC0008085 (CARBON DYNAMICS OF FOREST RECOVERY UNDER A CHANGING CLIMATE: FORCINGS, FEEDBACKS, AND IMPLICATIONS FOR EARTH SYSTEM MODELING), which closed June 14, 2014. The grant remains active at the Smithsonian.

  16. Secretary Bodman Highlights President Bush's Solar America Initiative...

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

    ... Also yesterday, Secretary Bodman toured the Archer Daniels Midland Ethanol plant in ... Also yesterday, Secretary Bodman toured the Archer Daniels Midland Ethanol plant in ...

  17. A modified heat leak test facility employing a closed-cycle helium refrigerator

    SciTech Connect (OSTI)

    Boroski, W.N.

    1996-01-01

    A Heat Leak Test Facility (HLTF) has been in use at Fermilab for many years. The apparatus has successfully measured the thermal performance of a variety of cryostat components under simulated operating conditions. While an effective tool in the cryostat design process, the HLTF has several limitations. Temperatures are normally fixed at cryogen boiling points and run times are limited to cryogen inventory. Moreover, close personnel attention is required to maintain system inventories and sustain system equilibrium. To provide longer measurement periods without perturbation and to minimize personnel interaction, a new heat leak measurement facility (HLTF-2) has been designed that incorporates a closed-cycle helium refrigerator. The two-stage refrigerator provides cooling to the various temperature stations of the HLTF while eliminating the need for cryogens. Eliminating cryogen inventories has resulted in a reduction of the amount of direct personnel attention required.

  18. Why is there a dearth of close-in planets around fast-rotating stars?

    SciTech Connect (OSTI)

    Teitler, Seth; Knigl, Arieh E-mail: akonigl@uchicago.edu

    2014-05-10

    We propose that the reported dearth of Kepler objects of interest (KOIs) with orbital periods P {sub orb} ? 2-3 days around stars with rotation periods P {sub rot} ? 5-10 days can be attributed to tidal ingestion of close-in planets by their host stars. We show that the planet distribution in this region of the log P {sub orb}-log P {sub rot} plane is qualitatively reproduced with a model that incorporates tidal interaction and magnetic braking as well as the dependence on the stellar core-envelope coupling timescale. We demonstrate the consistency of this scenario with the inferred break in the P {sub orb} distribution of close-in KOIs and point out a potentially testable prediction of this interpretation.

  19. Closely spaced mirror pair for reshaping and homogenizing pump beams in laser amplifiers

    SciTech Connect (OSTI)

    Bass, I.L.

    1992-12-01

    Channeling a laser beam by multiple reflections between two closely-spaced, parallel or nearly parallel mirrors, serves to reshape and homogenize the beam at the output gap between the mirrors. Application of this device to improve the spatial overlap of a copper laser pump beam with the signal beam in a dye laser amplifier is described. This technique has been applied to the AVLIS program at the Lawrence Livermore National Laboratory.

  20. [open quotes]Abnormal[close quotes] nuclear phenomena and possible nuclear process

    SciTech Connect (OSTI)

    Jiefu Yang; Dexiu Chen; Guanghui Zhou; Qiangsheng Wu; Jianping Huang; Lijun Tang; Xiaomei Cheng; Dongzhu Xie; Liming Gu )

    1994-03-01

    A careful study of [open quotes]abnormal[close quotes] nuclear phenomena in a cold fusion experiment indicates that cold fusion is a new problem in ultralow energy, and one cannot use the traditional idea of deuteron-deuteron fusion to understand and appraise cold fusion. The contradiction between the new phenomena and traditional theory is analyzed, and a possible new nuclear process is suggested. 8 refs., 2 figs., 1 tab.

  1. Secretary Chu Announces Closing of $117 Million Loan Guarantee for Kahuku

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

    Wind Power Project | Department of Energy 17 Million Loan Guarantee for Kahuku Wind Power Project Secretary Chu Announces Closing of $117 Million Loan Guarantee for Kahuku Wind Power Project July 27, 2010 - 12:00am Addthis Washington D.C. --- Energy Secretary Steven Chu today announced that the Department of Energy has finalized a $117 million loan guarantee for Kahuku Wind Power, LLC, the owner and operator of the Kahuku Wind Power project. The project includes the development of an

  2. CBC Control Panel (Closed Brayton Cycle Control System) v 1.0

    Energy Science and Technology Software Center (OSTI)

    2012-09-13

    The CBC Control Panel is a LabviewTM Virtual Interface program that performs data acquisition, displays this data (over 100 channels), and provides control mechanisms for Closed Brayton Cycle (CBC) power conversion systems. The Program uses a state point control method that transitions the CBC from an IDLE/OFF state to RUNNING state, to SHUTDOWN, and ultimately bac~ to IDLE/OFF. During each state a set of rules control the behavior of the machine.

  3. Weighted SVD algorithm for close-orbit correction and 10 Hz feedback in RHIC

    SciTech Connect (OSTI)

    Liu C.; Hulsart, R.; Marusic, A.; Michnoff, R.; Minty, M.; Ptitsyn, V.

    2012-05-20

    Measurements of the beam position along an accelerator are typically treated equally using standard SVD-based orbit correction algorithms so distributing the residual errors, modulo the local beta function, equally at the measurement locations. However, sometimes a more stable orbit at select locations is desirable. In this paper, we introduce an algorithm for weighting the beam position measurements to achieve a more stable local orbit. The results of its application to close-orbit correction and 10 Hz orbit feedback are presented.

  4. Acquisition and Project Management Office volunteers get up-close look at

    National Nuclear Security Administration (NNSA)

    Office of Secure Transportation exercise | National Nuclear Security Administration Acquisition and Project Management Office volunteers get up-close look at Office of Secure Transportation exercise Wednesday, December 9, 2015 - 10:45am From left, Tamra Barela, Chelsea Murphy, Tracy CDeBaca and Clay Burgess. Contracting professionals from the NNSA Acquisition & Project Management (APM) Field Program Section (FPS) recently served as role players for Office of Secure Transportation (OST)

  5. Microsoft PowerPoint - Closing Summary_Brian Horn_Pete Dessaules_James Crabtree

    National Nuclear Security Administration (NNSA)

    Summary/Closing Discussions Pete Dessaules, NNSA Brian Horn, NRC James Crabtree, NNSA Summary  Multiple presentations focused on the relevancy and significance of NMMSS to: - National security decisions - International commitments and obligations - Mission and programmatic planning - Commerce - Safety and health - Licensing/compliance  Transmit matching issues, e.g., - Batch ID 2 Summary (Cont'd)  Importance and complexities associated with obligations tracking - Tracking the entire

  6. Which Spray Foam Is Right For You?: Appropriate Applications for Open-Cell & Closed-Cell Foam Insulation

    SciTech Connect (OSTI)

    2009-04-03

    This guideline focuses on performance benefits and the potential performance limitations of open-cell and closed-cell spray polyurethane foam.

  7. Fact #850: December 8, 2014 Automatic Transmissions have closed the Fuel Economy Gap with Manual Transmissions- Dataset

    Broader source: Energy.gov [DOE]

    Excel file with dataset for Fact #850: December 8, 2014 Automatic Transmissions have closed the Fuel Economy Gap with Manual Transmissions

  8. Closed Crawl Space Performance: Proof of Concept in the Production Builder Marketplace

    SciTech Connect (OSTI)

    Malkin-Weber, Melissa; Dastur, Cyrus; Mauceri, Maria; Hannas, Benjamin

    2008-10-30

    This overview is intended to be a very concise, limited summary of the key project activities discussed in the detailed report that follows. Due to the large scope of this project, the detailed report is broken into three individually titled sections. Each section repeats key background information, with the goal that the sections will eventually stand alone as complete reports on the major activities of the project. The information presented herein comes from ongoing research, so please note that all observations, findings and recommendations presented are preliminary and subject to change in the future. We invite and welcome your comments and suggestions for improving the project. Advanced Energy completed its first jointly-funded crawl space research project with the Department of Energy in 2005. That project, funded under award number DE-FC26-00NT40995 and titled 'A Field Study Comparison of the Energy and Moisture Performance Characteristics of Ventilated Versus Sealed Crawl Spaces in the South' demonstrated the substantial energy efficiency and moisture management benefits that result from using properly closed crawl space foundations for residential construction instead of traditional wall vented crawl space foundations. Two activities of this first project included (1) an assessment of ten existing homes to document commonly observed energy and moisture failures associated with wall-vented crawl space foundations and (2) a detailed literature review that documented both the history of closed crawl space research and the historical lack of scientific justification for building code requirements for crawl space ventilation. The most valuable activity of the 2005 project proved to be the field demonstration of various closed crawl space techniques, which were implemented in a set of twelve small (1040 square feet), simply designed homes in eastern North Carolina. These homes had matched envelope, mechanical and architectural designs, and comparable performance characteristics with regard to infiltration and duct leakage. Researchers settled on two closed crawl space designs, one with insulation located in the framed floor structure above the crawl space and one with insulation on the crawl space perimeter wall, as the designs with the most widespread potential for application. Researchers based this assessment not only on the field performance, but also on input from residential builders, pest control professionals, code officials, installers, and building scientists active in the region. The key findings from the field demonstration were that (1) closed crawl spaces stay substantially drier than traditional wall-vented crawl spaces during humid climate conditions, and (2) the houses built on the closed crawl space foundations saved, on average, 15% or more on annual energy used for space heating and cooling. A comparison of the actual energy performance of the homes versus the performance predicted by a popular HERS software application showed that the software was unable to predict the demonstrated savings, in some cases predicting an energy penalty. Findings from the 2005 project were summarized in a publication titled Closed Crawl Spaces: An Introduction to Design, Construction and Performance. Since its release, the publication has received widespread use by builders, homeowners, installers and code officials concerned about crawl space construction. The findings were also used to create major revisions to the NC Residential Code, which were adopted in 2004 and immediately began to reduce the regulatory barriers to widespread commercialization of the technology in NC, particularly in new residential construction. Full project details are located at www.crawlspaces.org.

  9. Injection locking of a two-mode electron oscillator with close frequencies

    SciTech Connect (OSTI)

    Starodubova, E. N.; Usacheva, S. A.; Ryskin, N. M.; Novozhilova, Y. V.; Nusinovich, G. S.

    2015-03-15

    Theory of injection locking is developed for a two-mode electron maser with close frequencies, when the driving signal affects both modes. There exist two regimes of phase locking in which either first or second mode dominates. Hard transitions between the two regimes are observed with variation of the driving frequency. The results of numerical simulations are presented for the case of driving by a signal with linear frequency chirp, as well as by a signal with sinusoidal frequency modulation. The effect of bifurcation delay is observed with the increase of chirp rate.

  10. Development of Nitrogen Oxide Closed System in the Future Reprocessing Process

    SciTech Connect (OSTI)

    Takaoku, Y.; Hattori, I.; Watanabe, T.; Moriya, N.; Sumida, Y.; Araya, S.; Homma, S.; Suzuki, Y.; Akai, Y.

    2007-07-01

    An aqueous reprocessing for spent fuels generates much wastes mainly including sodium nitrate as secondary waste, which has some kinds of difficulties in disposal. A process with salt-free reagent and complete recycle of nitric acid would resolve the problem, but development for such process is not easy. We propose the treatment system of sodium nitrate waste, which are termed 'Nitrogen Oxide Closed System' (NCS) as mentioned below. The system decomposes nitrate ion, and enables reuse of sodium in sodium nitrate with no generation of sodium nitrate waste. Accordingly, the NCS system allows the use of sodium salt reagents, and generation of excess acid in a reprocessing process. (authors)

  11. Posting Date: 5/3/16 Posting Close Date: 5/10/2016

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

    5/3/16 Posting Close Date: 5/10/2016 North American Industry Classification System (NAICS) code for the request: 236220 Estimated Subcontract/PO Value: TBD Estimated Period of Performance 8-10 Months Estimated RFP/RFQ Release Date: 5/16/2016 Estimated Award Date: 7/8/2016 Competition Type: Not Set-Aside Buyer Contact Email: Amyp@lanl.gov Title: Multi-purpose Conference, Tele-conference Building Description of Product or Service Required The objective of the construction contract is to create

  12. Effect of the electron lenses on the RHIC proton beam closed orbit

    SciTech Connect (OSTI)

    Gu, X.; Luo, Y.; Pikin, A.; Okamura, M.; Fischer, W.; Montag, C.; Gupta, R.; Hock, J.; Jain, A.; Raparia, D.

    2011-02-01

    We are designing two electron lenses (E-lens) to compensate for the large beam-beam tune spread from proton-proton interactions at IP6 and IP8 in the Relativistic Heavy Ion Collider (RHIC). They will be installed at RHIC IR10. The transverse fields of the E-lenses bending solenoids and the fringe field of the main solenoids will shift the proton beam. We calculate the transverse kicks that the proton beam receives in the electron lens via Opera. Then, after incorporating the simplified E-lens lattice in the RHIC lattice, we obtain the closed orbit effect with the Simtrack Code.

  13. Enabling comparative modeling of closely related genomes: Example genus Brucella

    SciTech Connect (OSTI)

    Faria, Jos P.; Edirisinghe, Janaka N.; Davis, James J.; Disz, Terrence; Hausmann, Anna; Henry, Christopher S.; Olson, Robert; Overbeek, Ross A.; Pusch, Gordon D.; Shukla, Maulik; Vonstein, Veronika; Wattam, Alice R.

    2014-03-08

    For many scientific applications, it is highly desirable to be able to compare metabolic models of closely related genomes. In this study, we attempt to raise awareness to the fact that taking annotated genomes from public repositories and using them for metabolic model reconstructions is far from being trivial due to annotation inconsistencies. We are proposing a protocol for comparative analysis of metabolic models on closely related genomes, using fifteen strains of genus Brucella, which contains pathogens of both humans and livestock. This study lead to the identification and subsequent correction of inconsistent annotations in the SEED database, as well as the identification of 31 biochemical reactions that are common to Brucella, which are not originally identified by automated metabolic reconstructions. We are currently implementing this protocol for improving automated annotations within the SEED database and these improvements have been propagated into PATRIC, Model-SEED, KBase and RAST. This method is an enabling step for the future creation of consistent annotation systems and high-quality model reconstructions that will support in predicting accurate phenotypes such as pathogenicity, media requirements or type of respiration.

  14. US adopts {open_quote}Wise{close_quote} program to combat global warming

    SciTech Connect (OSTI)

    Herman, P.; Kenchington, H.

    1996-12-31

    Relying on their Yankee ingenuity, some 60 American companies have pledged to reduce greenhouse-gas emissions by more than 5 million metric tons by 2000. Inspired by the Clinton administration`s Climate Change Action Plan, companies such as Dupont and General Motors have joined with the Department of Energy and the Environmental Protection Agency to implement voluntary reductions in pollution, say Pamela Herman and Hank Kenchington, co-directors of the Climate Wise Program. {open_quotes}Climate Wise provides a flexible program that encourages industries to put forth their best ideas. The government, in turn, offers companies access to technical information and help in learning from the experience of others,{close_quotes} the authors say. Conservation of resources translates into financial savings as well. In curbing its emissions of greenhouse gases, Dupont {open_quotes}anticipates savings $30 million this year,{close_quotes} say Herman and Kechington. As a result, such cooperative initiatives as Climate Wise boost both the nation`s productivity and competitiveness.

  15. Molten salt considerations for accelerator-driven subcritical fission to close the nuclear fuel cycle

    SciTech Connect (OSTI)

    Sooby, Elizabeth; Baty, Austin; Gerity, James; McIntyre, Peter; Melconian, Karie; Pogue, Nathaniel; Sattarov, Akhdiyor; Adams, Marvin; Tsevkov, Pavel; Phongikaroon, Supathorn; Simpson, Michael; Tripathy, Prabhat

    2013-04-19

    The host salt selection, molecular modeling, physical chemistry, and processing chemistry are presented here for an accelerator-driven subcritical fission in a molten salt core (ADSMS). The core is fueled solely with the transuranics (TRU) and long-lived fission products (LFP) from used nuclear fuel. The neutronics and salt composition are optimized to destroy the transuranics by fission and the long-lived fission products by transmutation. The cores are driven by proton beams from a strong-focusing cyclotron stack. One such ADSMS system can destroy the transuranics in the used nuclear fuel produced by a 1GWe conventional reactor. It uniquely provides a method to close the nuclear fuel cycle for green nuclear energy.

  16. Resonant activation in a colored multiplicative thermal noise driven closed system

    SciTech Connect (OSTI)

    Ray, Somrita; Bag, Bidhan Chandra; Mondal, Debasish

    2014-05-28

    In this paper, we have demonstrated that resonant activation (RA) is possible even in a thermodynamically closed system where the particle experiences a random force and a spatio-temporal frictional coefficient from the thermal bath. For this stochastic process, we have observed a hallmark of RA phenomena in terms of a turnover behavior of the barrier-crossing rate as a function of noise correlation time at a fixed noise variance. Variance can be fixed either by changing temperature or damping strength as a function of noise correlation time. Our another observation is that the barrier crossing rate passes through a maximum with increase in coupling strength of the multiplicative noise. If the damping strength is appreciably large, then the maximum may disappear. Finally, we compare simulation results with the analytical calculation. It shows that there is a good agreement between analytical and numerical results.

  17. Growth of CdTe thin films on graphene by close-spaced sublimation method

    SciTech Connect (OSTI)

    Jung, Younghun; Yang, Gwangseok; Kim, Jihyun, E-mail: hyunhyun7@korea.ac.kr [Department of Chemical and Biological Engineering, Korea University, Seoul 136-701 (Korea, Republic of)] [Department of Chemical and Biological Engineering, Korea University, Seoul 136-701 (Korea, Republic of); Chun, Seungju; Kim, Donghwan [Department of Materials Science and Engineering, Korea University, Seoul 136-701 (Korea, Republic of)] [Department of Materials Science and Engineering, Korea University, Seoul 136-701 (Korea, Republic of)

    2013-12-02

    CdTe thin films grown on bi-layer graphene were demonstrated by using the close-spaced sublimation method, where CdTe was selectively grown on the graphene. The density of the CdTe domains was increased with increasing the number of the defective sites in the graphene, which was controlled by the duration of UV exposure. The CdTe growth rate on the bi-layer graphene electrodes was 400?nm/min with a bandgap energy of 1.451.49?eV. Scanning electron microscopy, micro-Raman spectroscopy, micro-photoluminescence, and X-ray diffraction technique were used to confirm the high quality of the CdTe thin films grown on the graphene electrodes.

  18. {open_quotes}Quadrupoled{close_quotes} materials for second-order nonlinear optics

    SciTech Connect (OSTI)

    Hubbard, S.F.; Petschek, R.G.; Singer, K.D.

    1997-10-01

    We describe a new approach to second-order nonlinear optical materials, namely quadrupoling. This approach is valid in the regime of Kleinman (full permutation) symmetry breaking, and thus requires a two- or three dimensional microscopic nonlinearity at wavelengths away from material resonances. This {open_quotes}quadrupolar{close_quotes} nonlinearity arises from the second rank pseudotensor of the rotationally invariant representation of the second-order nonlinear optical tensor. We have experimentally investigated candidate molecules comprised of chiral camphorquinone derivatives by measuring the scalar invariant associated with the rank two pseudotensor using hyper-Rayleigh scattering. We have found sizable scalar figures of merit for several compounds using light for which the second harmonic wavelengths are greater than 100 nm longer than the absorption peak location. At these wavelengths, the quadrupolar scalar is as large as the polar (EFISH) scalar of p-nitroaniline. Prospects for applications are discussed.

  19. Closed loop control of the induction heating process using miniature magnetic sensors

    DOE Patents [OSTI]

    Bentley, Anthony E.; Kelley, John Bruce; Zutavern, Fred J.

    2003-05-20

    A method and system for providing real-time, closed-loop control of the induction hardening process. A miniature magnetic sensor located near the outer surface of the workpiece measures changes in the surface magnetic field caused by changes in the magnetic properties of the workpiece as it heats up during induction heating (or cools down during quenching). A passive miniature magnetic sensor detects a distinct magnetic spike that appears when the saturation field, B.sub.sat, of the workpiece has been exceeded. This distinct magnetic spike disappears when the workpiece's surface temperature exceeds its Curie temperature, due to the sudden decrease in its magnetic permeability. Alternatively, an active magnetic sensor can measure changes in the resonance response of the monitor coil when the excitation coil is linearly swept over 0-10 MHz, due to changes in the magnetic permeability and electrical resistivity of the workpiece as its temperature increases (or decreases).

  20. High-throughput metagenomic technologies for complex microbial community analysis. Open and closed formats

    SciTech Connect (OSTI)

    Zhou, Jizhong; He, Zhili; Yang, Yunfeng; Deng, Ye; Tringe, Susannah G.; Alvarez-Cohen, Lisa

    2015-01-27

    Understanding the structure, functions, activities and dynamics of microbial communities in natural environments is one of the grand challenges of 21st century science. To address this challenge, over the past decade, numerous technologies have been developed for interrogating microbial communities, of which some are amenable to exploratory work (e.g., high-throughput sequencing and phenotypic screening) and others depend on reference genes or genomes (e.g., phylogenetic and functional gene arrays). Here, we provide a critical review and synthesis of the most commonly applied “open-format” and “closed-format” detection technologies. We discuss their characteristics, advantages, and disadvantages within the context of environmental applications and focus on analysis of complex microbial systems, such as those in soils, in which diversity is high and reference genomes are few. In addition, we discuss crucial issues and considerations associated with applying complementary high-throughput molecular technologies to address important ecological questions.

  1. Personal, closed-cycle cooling and protective apparatus and thermal battery therefor

    DOE Patents [OSTI]

    Klett, James W.; Klett, Lynn B.

    2004-07-20

    A closed-cycle apparatus for cooling a living body includes a heat pickup body or garment which permits evaporation of an evaporating fluid, transmission of the vapor to a condenser, and return of the condensate to the heat pickup body. A thermal battery cooling source is provided for removing heat from the condenser. The apparatus requires no external power and provides a cooling system for soldiers, race car drivers, police officers, firefighters, bomb squad technicians, and other personnel who may utilize protective clothing to work in hostile environments. An additional shield layer may simultaneously provide protection from discomfort, illness or injury due to harmful atmospheres, projectiles, edged weapons, impacts, explosions, heat, poisons, microbes, corrosive agents, or radiation, while simultaneously removing body heat from the wearer.

  2. Closing the Carbon Balance for Fermentation by Clostridium thermocellum (ATCC 27405)

    SciTech Connect (OSTI)

    Ellis, Lucas D; Holwerda, Evert K; Hogsett, David; Rogers, Steve; Shao, Xiongjun; Tschaplinski, Timothy J; Thorne, Phil; Lynd, L.

    2012-01-01

    Our lab and most others have not been able to close a carbon balance for fermentation by the thermophilic, cellulolytic anaerobe, Clostridium thermocellum. We undertook a detailed accounting of product formation in C. thermocellum ATCC 27405. Elemental analysis revealed that for both cellulose (Avicel) and cellobiose, {>=}92% of the substrate carbon utilized could be accounted for in the pellet, supernatant and off-gas when including sampling. However, 11.1% of the original substrate carbon was found in the liquid phase and not in the form of commonly-measured fermentation products - ethanol, acetate, lactate, and formate. Further detailed analysis revealed all the products to be <720 da and have not usually been associated with C. thermocellum fermentation, including malate, pyruvate, uracil, soluble glucans, and extracellular free amino acids. By accounting for these products, 92.9% and 93.2% of the final product carbon was identified during growth on cellobiose and Avicel, respectively.

  3. Dislocation Dynamics Simulations of Junctions in Hexagonal Close-Packed Crystals

    SciTech Connect (OSTI)

    Wu, C; Aubry, S; Chung, P; Arsenlis, A

    2011-12-05

    The formation and strength of dislocations in the hexagonal closed packed material beryllium are studied through dislocation junctions and the critical stress required to break them. Dislocation dynamics calculations (using the code ParaDiS) of junction maps are compared to an analytical line tension approximation in order to validate our model. Results show that the two models agree very well. Also the critical shear stress necessary to break 30{sup o} - 30{sup o} and 30{sup o} - 90{sup o} dislocation junctions is computed numerically. Yield surfaces are mapped out for these junctions to describe their stability regions as function of resolved shear stresses on the glide planes. The example of two non-coplanar binary dislocation junctions with slip planes [2-1-10] (01-10) and [-12-10] (0001) corresponding to a prismatic and basal slip respectively is chosen to verify and validate our implementation.

  4. High-stability cryogenic scanning tunneling microscope based on a closed-cycle cryostat

    SciTech Connect (OSTI)

    Hackley, Jason D.; Kislitsyn, Dmitry A.; Beaman, Daniel K.; Nazin, George V.; Ulrich, Stefan

    2014-10-15

    We report on the design and operation of a cryogenic ultra-high vacuum (UHV) scanning tunneling microscope (STM) coupled to a closed-cycle cryostat (CCC). The STM is thermally linked to the CCC through helium exchange gas confined inside a volume enclosed by highly flexible rubber bellows. The STM is thus mechanically decoupled from the CCC, which results in a significant reduction of the mechanical noise transferred from the CCC to the STM. Noise analysis of the tunneling current shows current fluctuations up to 4% of the total current, which translates into tip-sample distance variations of up to 1.5 picometers. This noise level is sufficiently low for atomic-resolution imaging of a wide variety of surfaces. To demonstrate this, atomic-resolution images of Au(111) and NaCl(100)/Au(111) surfaces, as well as of carbon nanotubes deposited on Au(111), were obtained. Thermal drift analysis showed that under optimized conditions, the lateral stability of the STM scanner can be as low as 0.18 /h. Scanning Tunneling Spectroscopy measurements based on the lock-in technique were also carried out, and showed no detectable presence of noise from the closed-cycle cryostat. Using this cooling approach, temperatures as low as 16 K at the STM scanner have been achieved, with the complete cool-down of the system typically taking up to 12 h. These results demonstrate that the constructed CCC-coupled STM is a highly stable instrument capable of highly detailed spectroscopic investigations of materials and surfaces at the atomic scale.

  5. A CLOSE-PAIR ANALYSIS OF DAMP MERGERS AT INTERMEDIATE REDSHIFTS

    SciTech Connect (OSTI)

    Chou, Richard C. Y.; Abraham, Roberto G.; Bridge, Carrie R. E-mail: abraham@astro.utoronto.ca

    2012-12-01

    We have studied the kinematics of {approx}2800 candidate close-pair galaxies at 0.1 < z < 1.2 identified from the Canada-France-Hawaii Telescope Legacy Survey fields. Spectra of these systems were obtained using spectrometers on the 6.5 m Magellan and 5 m Hale telescopes. These data allow us to constrain the rate of dry mergers at intermediate redshifts and to test the 'hot halo' model for quenching of star formation. Using virial radii estimated from the correlation between dynamical and stellar masses published by Leauthaud et al., we find that around 1/5 of our candidate pairs are likely to share a common dark matter halo (our metric for close physical association). These pairs are divided into red-red, blue-red, and blue-blue systems using the rest-frame colors classification method introduced in Chou et al.. Galaxies classified as red in our sample have very low star formation rates, but they need not be totally quiescent, and hence we refer to them as 'damp', rather than 'dry', systems. After correcting for known selection effects, the fraction of blue-blue pairs is significantly greater than that of red-red and blue-red pairs. Red-red pairs are almost entirely absent from our sample, suggesting that damp mergers are rare at z {approx} 0.5. Our data support models with a short merging timescale (<0.5 Gyr) in which star formation is enhanced in the early phase of mergers, but quenched in the late phase. Hot halo models may explain this behavior, but only if virial shocks that heat gas are inefficient until major mergers are nearly complete.

  6. Final Scientific/Technical Report. A closed path methane and water vapor gas analyzer

    SciTech Connect (OSTI)

    Liukang, Xu; Dayle, McDermitt; Tyler, Anderson; Brad, Riensche; Anatoly, Komissarov; Julie, Howe

    2012-05-01

    Robust, economical, low-power and reliable closed-path methane (CH4), carbon dioxide (CO2), and water vapor (H2O) analyzers suitable for long-term measurements are not readily available commercially. Such analyzers are essential for quantifying the amount of CH4 and CO2 released from various ecosystems (wetlands, rice paddies, forests, etc.) and other surface contexts (e.g. landfills, animal husbandry lots, etc.), and for understanding the dynamics of the atmospheric CH4 and CO2 budget and their impact on climate change and global warming. The purpose of this project is to develop a closed-path methane, carbon dioxide gas and water vapor analyzer capable of long-term measurements in remote areas for global climate change and environmental research. The analyzer will be capable of being deployed over a wide range of ecosystems to understand methane and carbon dioxide exchange between the atmosphere and the surface. Measurements of methane and carbon dioxide exchange need to be made all year-round with limited maintenance requirements. During this Phase II effort, we successfully completed the design of the electronics, optical bench, trace gas detection method and mechanical infrastructure. We are using the technologies of two vertical cavity surface emitting lasers, a multiple-pass Herriott optical cell, wavelength modulation spectroscopy and direct absorption to measure methane, carbon dioxide, and water vapor. We also have designed the instrument application software, Field Programmable Gate Array (FPGA), along with partial completion of the embedded software. The optical bench has been tested in a lab setting with very good results. Major sources of optical noise have been identified and through design, the optical noise floor is approaching -60dB. Both laser modules can be temperature controlled to help maximize the stability of the analyzer. Additionally, a piezo electric transducer has been utilized to randomize the noise introduced from potential etalons. It is expected that all original specifications contained within the initial proposal will be met. We are currently in the beginning stages of assembling the first generation prototypes and finalizing the remaining design elements. The first prototypes will initially be tested in our environmental calibration chamber in which specific gas concentrations, temperature and humidity levels can be controlled. Once operation in this controlled setting is verified, the prototypes will be deployed at LI-COR’s Experimental Research Station (LERS). Deployment at the LERS site will test the instrument’s robustness in a real-world situation.

  7. The benefits of a fast reactor closed fuel cycle in the UK

    SciTech Connect (OSTI)

    Gregg, R.; Hesketh, K.

    2013-07-01

    The work has shown that starting a fast reactor closed fuel cycle in the UK, requires virtually all of Britain's existing and future PWR spent fuel to be reprocessed, in order to obtain the plutonium needed. The existing UK Pu stockpile is sufficient to initially support only a modest SFR 'closed' fleet assuming spent fuel can be reprocessed shortly after discharge (i.e. after two years cooling). For a substantial fast reactor fleet, most Pu will have to originate from reprocessing future spent PWR fuel. Therefore, the maximum fast reactor fleet size will be limited by the preceding PWR fleet size, so scenarios involving fast reactors still require significant quantities of uranium ore indirectly. However, once a fast reactor fuel cycle has been established, the very substantial quantities of uranium tails in the UK would ensure there is sufficient material for several centuries. Both the short and long term impacts on a repository have been considered in this work. Over the short term, the decay heat emanating from the HLW and spent fuel will limit the density of waste within a repository. For scenarios involving fast reactors, the only significant heat bearing actinide content will be present in the final cores, resulting in a 50% overall reduction in decay energy deposited within the repository when compared with an equivalent open fuel cycle. Over the longer term, radiological dose becomes more important. Total radiotoxicity (normalised by electricity generated) is lower for scenarios with Pu recycle after 2000 years. Scenarios involving fast reactors have the lowest radiotoxicity since the quantities of certain actinides (Np, Pu and Am) eventually stabilise. However, total radiotoxicity as a measure of radiological risk does not account for differences in radionuclide mobility once in repository. Radiological dose is dominated by a small number of fission products so is therefore not affected significantly by reactor type or recycling strategy (since the fission product will primarily be a function of nuclear energy generated). However, by reprocessing spent fuel, it is possible to immobilise the fission product in a more suitable waste form that has far more superior in-repository performance. (authors)

  8. Low backlash direct drive actuator

    DOE Patents [OSTI]

    Kuklo, Thomas C. (Oakland, CA)

    1994-01-01

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

  9. Low backlash direct drive actuator

    DOE Patents [OSTI]

    Kuklo, T.C.

    1994-10-25

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

  10. Impact of Resolution on Simulation of Closed Mesoscale Cellular Convection Identified by Dynamically Guided Watershed Segmentation

    SciTech Connect (OSTI)

    Martini, Matus; Gustafson, William I.; Yang, Qing; Xiao, Heng

    2014-11-27

    Organized mesoscale cellular convection (MCC) is a common feature of marine stratocumulus that forms in response to a balance between mesoscale dynamics and smaller scale processes such as cloud radiative cooling and microphysics. We use the Weather Research and Forecasting model with chemistry (WRF-Chem) and fully coupled cloud-aerosol interactions to simulate marine low clouds during the VOCALS-REx campaign over the southeast Pacific. A suite of experiments with 3- and 9-km grid spacing indicates resolution-dependent behavior. The simulations with finer grid spacing have smaller liquid water paths and cloud fractions, while cloud tops are higher. The observed diurnal cycle is reasonably well simulated. To isolate organized MCC characteristics we develop a new automated method, which uses a variation of the watershed segmentation technique that combines the detection of cloud boundaries with a test for coincident vertical velocity characteristics. This ensures that the detected cloud fields are dynamically consistent for closed MCC, the most common MCC type over the VOCALS-REx region. We demonstrate that the 3-km simulation is able to reproduce the scaling between horizontal cell size and boundary layer height seen in satellite observations. However, the 9-km simulation is unable to resolve smaller circulations corresponding to shallower boundary layers, instead producing invariant MCC horizontal scale for all simulated boundary layers depths. The results imply that climate models with grid spacing of roughly 3 km or smaller may be needed to properly simulate the MCC structure in the marine stratocumulus regions.

  11. Pygmy dipole mode in deformed neutron-rich Mg isotopes close to the drip line

    SciTech Connect (OSTI)

    Yoshida, Kenichi

    2009-10-15

    We investigate the microscopic structure of the low-lying isovector-dipole excitation mode in neutron-rich {sup 36,38,40}Mg close to the drip line by means of the deformed quasiparticle random-phase approximation employing the Skyrme and the local pairing energy-density functionals. It is found that the low-lying bump structure above the neutron emission-threshold energy develops when the drip line is approached, and that the isovector dipole strength at E{sub x}<10 MeV exhausts about 6.0% of the classical Thomas-Reiche-Kuhn dipole sum rule in {sup 40}Mg. We obtained the collective dipole modes at around 8-10 MeV in Mg isotopes, that consist of many two-quasiparticle excitations of the neutron. The transition density clearly shows an oscillation of the neutron skin against the isoscalar core. We found significant coupling effects between the dipole and octupole excitation modes due to the nuclear deformation. It is also found that the responses for the compressional dipole and isoscalar octupole excitations are much enhanced in the lower energy region.

  12. Method and closing pores in a thermally sprayed doped lanthanum chromite interconnection layer

    DOE Patents [OSTI]

    Singh, Prabhakar; Ruka, Roswell J.

    1995-01-01

    A dense, substantially gas-tight electrically conductive interconnection layer is formed on an air electrode structure of an electrochemical cell by (A) providing an air electrode surface; (B) forming on a selected portion of the electrode surface, a layer of doped LaCrO.sub.3 particles doped with an element or elements selected from Ca, Sr, Ba, Mg, Co, Ni, Al and mixtures thereof by thermal spraying doped LaCrO.sub.3 particles, either by plasma arc spraying or flame spraying; (C) depositing a mixture of CaO and Cr.sub.2 O.sub.3 on the surface of the thermally sprayed layer; and (D) heating the doped LaCrO.sub.3 layer coated with CaO and Cr.sub.2 O.sub.3 surface deposit at from about 1000.degree. C. to 1200.degree. C. to substantially close the pores, at least at a surface, of the thermally sprayed doped LaCrO.sub.3 layer. The result is a dense, substantially gas-tight, highly doped, electrically conductive interconnection material bonded to the electrode surface. A solid electrolyte layer can be applied to the nonselected portion of the air electrode. A fuel electrode can be applied to the solid electrolyte, to form an electrochemical cell, for example for generation of electrical power.

  13. Method and closing pores in a thermally sprayed doped lanthanum chromite interconnection layer

    DOE Patents [OSTI]

    Singh, P.; Ruka, R.J.

    1995-02-14

    A dense, substantially gas-tight electrically conductive interconnection layer is formed on an air electrode structure of an electrochemical cell by (A) providing an air electrode surface; (B) forming on a selected portion of the electrode surface, a layer of doped LaCrO{sub 3} particles doped with an element or elements selected from Ca, Sr, Ba, Mg, Co, Ni, Al and mixtures thereof by thermal spraying doped LaCrO{sub 3} particles, either by plasma arc spraying or flame spraying; (C) depositing a mixture of CaO and Cr{sub 2}O{sub 3} on the surface of the thermally sprayed layer; and (D) heating the doped LaCrO{sub 3} layer coated with CaO and Cr{sub 2}O{sub 3} surface deposit at from about 1,000 C to 1,200 C to substantially close the pores, at least at a surface, of the thermally sprayed doped LaCrO{sub 3} layer. The result is a dense, substantially gas-tight, highly doped, electrically conductive interconnection material bonded to the electrode surface. A solid electrolyte layer can be applied to the nonselected portion of the air electrode. A fuel electrode can be applied to the solid electrolyte, to form an electrochemical cell, for example for generation of electrical power. 5 figs.

  14. Genomic comparison of the closely-related Salmonella enterica serovars enteritidis, dublin and gallinarum

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

    Matthews, T. David; Schmieder, Robert; Silva, Genivaldo G. Z.; Busch, Julia; Cassman, Noriko; Dutilh, Bas E.; Green, Dawn; Matlock, Brian; Heffernan, Brian; Olsen, Gary J.; et al

    2015-06-03

    The Salmonella enterica serovars Enteritidis, Dublin, and Gallinarum are closely related but differ in virulence and host range. To identify the genetic elements responsible for these differences and to better understand how these serovars are evolving, we sequenced the genomes of Enteritidis strain LK5 and Dublin strain SARB12 and compared these genomes to the publicly available Enteritidis P125109, Dublin CT 02021853 and Dublin SD3246 genome sequences. We also compared the publicly available Gallinarum genome sequences from biotype Gallinarum 287/91 and Pullorum RKS5078. Using bioinformatic approaches, we identified single nucleotide polymorphisms, insertions, deletions, and differences in prophage and pseudogene content betweenmore » strains belonging to the same serovar. Through our analysis we also identified several prophage cargo genes and pseudogenes that affect virulence and may contribute to a host-specific, systemic lifestyle. These results strongly argue that the Enteritidis, Dublin and Gallinarum serovars of Salmonella enterica evolve by acquiring new genes through horizontal gene transfer, followed by the formation of pseudogenes. The loss of genes necessary for a gastrointestinal lifestyle ultimately leads to a systemic lifestyle and niche exclusion in the host-specific serovars.« less

  15. High-throughput metagenomic technologies for complex microbial community analysis. Open and closed formats

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

    Zhou, Jizhong; He, Zhili; Yang, Yunfeng; Deng, Ye; Tringe, Susannah G.; Alvarez-Cohen, Lisa

    2015-01-27

    Understanding the structure, functions, activities and dynamics of microbial communities in natural environments is one of the grand challenges of 21st century science. To address this challenge, over the past decade, numerous technologies have been developed for interrogating microbial communities, of which some are amenable to exploratory work (e.g., high-throughput sequencing and phenotypic screening) and others depend on reference genes or genomes (e.g., phylogenetic and functional gene arrays). Here, we provide a critical review and synthesis of the most commonly applied “open-format” and “closed-format” detection technologies. We discuss their characteristics, advantages, and disadvantages within the context of environmental applications andmore » focus on analysis of complex microbial systems, such as those in soils, in which diversity is high and reference genomes are few. In addition, we discuss crucial issues and considerations associated with applying complementary high-throughput molecular technologies to address important ecological questions.« less

  16. The deformation and failure response of closed-cell PMDI foams subjected to dynamic impact loading

    SciTech Connect (OSTI)

    Koohbor, Behrad; Mallon, Silas; Kidane, Addis; Lu, Wei -Yang

    2015-04-07

    The present work aims to investigate the bulk deformation and failure response of closed-cell Polymeric Methylene Diphenyl Diisocyanate (PMDI) foams subjected to dynamic impact loading. First, foam specimens of different initial densities are examined and characterized in quasi-static loading conditions, where the deformation behavior of the samples is quantified in terms of the compressive elastic modulus and effective plastic Poisson's ratio. Then, the deformation response of the foam specimens subjected to direct impact loading is examined by taking into account the effects of material compressibility and inertia stresses developed during deformation, using high speed imaging in conjunction with 3D digital image correlation. The stress-strain response and the energy absorption as a function of strain rate and initial density are presented and the bulk failure mechanisms are discussed. As a result, it is observed that the initial density of the foam and the applied strain rates have a substantial influence on the strength, bulk failure mechanism and the energy dissipation characteristics of the foam specimens.

  17. Method for closing a drift between adjacent in-situ oil shale retorts

    SciTech Connect (OSTI)

    Hines, A.E.

    1984-04-10

    A row of horizontally spaced-apart in situ oil shale retorts is formed in a subterranean formation containing oil shale. Each row of retorts is formed by excavating development drifts at different elevations through opposite side boundaries of a plurality of retorts in the row of retorts. Each retort is formed by explosively expanding formation toward one or more voids within the boundaries of the retort site to form a fragmented permeable mass of formation particles containing oil shale in each retort. Following formation of each retort, the retort development drifts on the advancing side of the retort are closed off by covering formation particles within the development drift with a layer of crushed oil shale particles having a particle size smaller than the average particle size of oil shale particles in the adjacent retort. In one embodiment, the crushed oil shale particles are pneumatically loaded into the development drift to pack the particles tightly all the way to the top of the drift and throughout the entire cross section of the drift. The closure between adjacent retorts provided by the finely divided oil shale provides sufficient resistance to gas flow through the development drift to effectively inhibit gas flow through the drift during subsequent retorting operations.

  18. Heat exchanger sizing for vertical closed-loop ground-source heat pumps

    SciTech Connect (OSTI)

    Cane, R.L.D.; Clemes, S.B.; Morrison, A.; Hughes, P.J.

    1995-12-31

    A building energy simulation program has been used in conjunction with a ground heat exchanger sizing algorithm to develop general guidelines on how to size vertical ground heat exchangers for closed-loop ground-source heat pump systems in large buildings. The analysis considered three commercial building types of varying size with different internal loads and heat pump efficiencies. Each building variation was simulated in seven cities, three in the US and four in Canada. The ground heat exchanger sizing algorithm has been previously validated against actual system data. The analysis results showed a strong correlation between heat exchanger length required and annual energy rejected to the ground, if the building was cooling-dominated, or annual energy extracted from the ground, if the building was heating-dominated. The resulting sizing guidelines recommend hour-by-hour energy analysis to determine the energy extracted from and rejected to the building water loop. Using this information the designer will have available easy-to-use, accurate sizing guidelines that should result in more economical installations than those based on previous ``rule of thumb`` guidelines.

  19. The deformation and failure response of closed-cell PMDI foams subjected to dynamic impact loading

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

    Koohbor, Behrad; Mallon, Silas; Kidane, Addis; Lu, Wei -Yang

    2015-04-07

    The present work aims to investigate the bulk deformation and failure response of closed-cell Polymeric Methylene Diphenyl Diisocyanate (PMDI) foams subjected to dynamic impact loading. First, foam specimens of different initial densities are examined and characterized in quasi-static loading conditions, where the deformation behavior of the samples is quantified in terms of the compressive elastic modulus and effective plastic Poisson's ratio. Then, the deformation response of the foam specimens subjected to direct impact loading is examined by taking into account the effects of material compressibility and inertia stresses developed during deformation, using high speed imaging in conjunction with 3D digitalmore » image correlation. The stress-strain response and the energy absorption as a function of strain rate and initial density are presented and the bulk failure mechanisms are discussed. As a result, it is observed that the initial density of the foam and the applied strain rates have a substantial influence on the strength, bulk failure mechanism and the energy dissipation characteristics of the foam specimens.« less

  20. MEMS closed-loop control incorporating a memristor as feedback sensing element

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

    Garcia, Ernest J.; Almeida, Sergio F.; Mireles, Jr., Jose; Zubia, David

    2015-12-01

    In this work the integration of a memristor with a MEMS parallel plate capacitor coupled by an amplification stage is simulated. It is shown that the MEMS upper plate position can be controlled up to 95% of the total gap. Due to its common operation principle, the change in the MEMS plate position can be interpreted by the change in the memristor resistance, or memristance. A memristance modulation of ~1 KΩ was observed. A polynomial expression representing the MEMS upper plate displacement as a function of the memristance is presented. Thereafter a simple design for a voltage closed-loop control ismore » presented showing that the MEMS upper plate can be stabilized up to 95% of the total gap using the memristor as a feedback sensing element. As a result, the memristor can play important dual roles in overcoming the limited operation range of MEMS parallel plate capacitors and in simplifying read-out circuits of those devices by representing the motion of the upper plate in the form of resistance change instead of capacitance change.« less

  1. Implications of a {open_quotes}cross-rolled{close_quotes} yield surface approximation on deep drawing

    SciTech Connect (OSTI)

    Logan, R.W.

    1996-03-01

    During deep-drawing, two issues manifest themselves that are due to normal and planar anisotropy in the sheet. These are a dependence of the Limiting Draw Ratio (LDR) on the average thinning ratio (R-value), and a dependence of ear formation and thinning around the circumference on the variation of R-value in the plane of the sheet. The quadratic (1948 Hill) yield surface has been applied to these issues and it has been demonstrated that there are numerous higher exponent yield criteria that may more closely duplicate experimental trends. These predict varying degrees of R-value dependencies of uniaxial yields and strength ratios in multiaxial loading paths. The result of this is that there are sometimes subtle and sometimes substantial differences in the predictions of the various yield surfaces on deep drawing regarding LDR and earing. Additional differences arise due to the way the shear term (45-degree yield) and the 0-degree vs. 90-degree strengths are treated in each criterion. These dependencies (in-plane strengths generated by the yield surfaces) are shown to affect the results of both LDR and earing during cupping. In particular, the 1979 Hosford and 1989 Barlat (Tricomponent) criteria, although identical for the normal anisotropy (planar isotropy) case, are strikingly different for cases where there are differences at 45 degrees and 90 degrees from the rolling direction.

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

    DOE Patents [OSTI]

    Barkman, William E.

    1980-01-01

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

  3. Implications of Plutonium isotopic separation on closed fuel cycles and repository design

    SciTech Connect (OSTI)

    Forsberg, C.

    2013-07-01

    Advances in laser enrichment may enable relatively low-cost plutonium isotopic separation. This would have large impacts on LWR closed fuel cycles and waste management. If Pu-240 is removed before recycling plutonium as mixed oxide (MOX) fuel, it would dramatically reduce the buildup of higher plutonium isotopes, Americium, and Curium. Pu-240 is a fertile material and thus can be replaced by U-238. Eliminating the higher plutonium isotopes in MOX fuel increases the Doppler feedback, simplifies reactor control, and allows infinite recycle of MOX plutonium in LWRs. Eliminating fertile Pu-240 and Pu-242 reduces the plutonium content in MOX fuel and simplifies fabrication. Reducing production of Pu-241 reduces production of Am-241 - the primary heat generator in spent nuclear fuels after several decades. Reducing heat generating Am-241 would reduce repository cost and waste toxicity. Avoiding Am- 241 avoids its decay product Np-237, a nuclide that partly controls long-term oxidizing repository performance. Most of these benefits also apply to LWR plutonium recycled into fast reactors. There are benefits for plutonium isotopic separation in fast reactor fuel cycles (particularly removal of Pu-242) but the benefits are less. (author)

  4. Stored Guthrie cards as DNA [open quotes]Banks[close quotes

    SciTech Connect (OSTI)

    McEwen, J.E.; Reilly, P.R. )

    1994-07-01

    Recently there has been much discussion about the possibility of using dried blood spots on Guthrie cards as a source of DNA for research or testing purposes. The collections of Guthrie cards stored by state newborn-screening laboratories can thus be viewed as inchoate [open quotes]DNA banks[close quotes]. This has generated concern among some persons who are interested in preserving the privacy of medical records. This study examines the policies of state newborn-screening laboratories in the United States, regarding their retention of Guthrie cards and the degree to which they permit the sharing of those cards with various third parties. The authors found that although most laboratories retain their cards, if at all, for only a short time, a growing number plan to keep them for an extended period-and, in several cases, indefinitely. They also found that although most laboratories would decline to release individually identifiable blood spots from the cards to third parties without a written release or other explicit authorization, a large number would at least consider sharing anonymous cards for research purposes. 10 refs., 2 tabs.

  5. Closing plenary summary of working group 4 instrumentation and controls for ERL2011

    SciTech Connect (OSTI)

    Gassner, D.; Obina, T.

    2011-10-16

    Working group 4 was charged with presentations and discussions on instrumentation and controls with regards to Energy Recovery Linacs (ERL). There were 4 sessions spanning 3.5 hours in which 7 talks were delivered, the first being an invited plenary presentation. The time allotted for each talk was limited to 20-25 minutes in order to allow 5-10 minutes for discussion. Most of the talks were held in joint session with working group 5 (Unwanted Beam Loss). This format was effective for the purpose of this workshop. A final series of discussion sessions were also held with working group 5. Summary of the working group 4 activities, presented in the closing plenary session. We had a plenary presentation on operational performance, experience, and future plans at the existing ERL injector prototype at Cornell. This included instrumentation data, controls system configurations, as well as description of future needs. This was followed by four talks from KEK and RIKEN/SPring-8 that described electron beam instrumentation already in use or under development that can be applied to ERL facilities. The final talks described the ERLs under construction at KEK and BNL. The format of having joint sessions with working group 5 was beneficial as there were a significant number of common topics and concerns with regards to the causes of beam loss, instrumentation hardware, and techniques used to measure and analyze beam loss.

  6. MEMS closed-loop control incorporating a memristor as feedback sensing element

    SciTech Connect (OSTI)

    Garcia, Ernest J.; Almeida, Sergio F.; Mireles, Jr., Jose; Zubia, David

    2015-12-01

    In this work the integration of a memristor with a MEMS parallel plate capacitor coupled by an amplification stage is simulated. It is shown that the MEMS upper plate position can be controlled up to 95% of the total gap. Due to its common operation principle, the change in the MEMS plate position can be interpreted by the change in the memristor resistance, or memristance. A memristance modulation of ~1 KΩ was observed. A polynomial expression representing the MEMS upper plate displacement as a function of the memristance is presented. Thereafter a simple design for a voltage closed-loop control is presented showing that the MEMS upper plate can be stabilized up to 95% of the total gap using the memristor as a feedback sensing element. As a result, the memristor can play important dual roles in overcoming the limited operation range of MEMS parallel plate capacitors and in simplifying read-out circuits of those devices by representing the motion of the upper plate in the form of resistance change instead of capacitance change.

  7. Method for closing a drift between adjacent in situ oil shale retorts

    DOE Patents [OSTI]

    Hines, Alex E.

    1984-01-01

    A row of horizontally spaced-apart in situ oil shale retorts is formed in a subterranean formation containing oil shale. Each row of retorts is formed by excavating development drifts at different elevations through opposite side boundaries of a plurality of retorts in the row of retorts. Each retort is formed by explosively expanding formation toward one or more voids within the boundaries of the retort site to form a fragmented permeable mass of formation particles containing oil shale in each retort. Following formation of each retort, the retort development drifts on the advancing side of the retort are closed off by covering formation particles within the development drift with a layer of crushed oil shale particles having a particle size smaller than the average particle size of oil shale particles in the adjacent retort. In one embodiment, the crushed oil shale particles are pneumatically loaded into the development drift to pack the particles tightly all the way to the top of the drift and throughout the entire cross section of the drift. The closure between adjacent retorts provided by the finely divided oil shale provides sufficient resistance to gas flow through the development drift to effectively inhibit gas flow through the drift during subsequent retorting operations.

  8. On the diversity of magnetic interactions in close-in star-planet systems

    SciTech Connect (OSTI)

    Strugarek, A.; Brun, A. S.; Réville, V.

    2014-11-01

    Magnetic interactions between close-in planets and their host star can play an important role in the secular orbital evolution of the planets, as well as the rotational evolution of their host. As long as the planet orbits inside the Alfvén surface of the stellar wind, the magnetic interaction between the star and the planet can modify the wind properties and also lead to direct angular momentum transfers between the two. We model these star-planet interactions using compressible magnetohydrodynamic (MHD) simulations, and quantify the angular momentum transfers between the star, the planet, and the stellar wind. We study the cases of magnetized and non-magnetized planets and vary the orbital radius inside the Alfvén surface of the stellar wind. Based on a grid of numerical simulations, we propose general scaling laws for the modification of the stellar wind torque, for the torque between the star and the planet, and for the planet migration associated with the star-planet magnetic interactions. We show that when the coronal magnetic field is large enough and the star is rotating sufficiently slowly, the effect of the magnetic star-planet interaction is comparable to tidal effects and can lead to a rapid orbital decay.

  9. Parallel Operation of Multiple Closely Spaced Small Aspect Ratio Rod Pinches

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

    Harper-Slaboszewicz, Victor J.; Leckbee, Joshua; Bennett, Nichelle; Madrid, Elizabeth A.; Rose, David V.; Thoma, Carsten; Welch, Dale R.; Lake, Patrick W.; McCourt, Andrew L.

    2014-12-10

    A series of simulations and experiments to resolve questions about the operation of arrays of closely spaced small aspect ratio rod pinches has been performed. Design and post-shot analysis of the experimental results are supported by 3D particle-in-cell simulations. Both simulations and experiments support these conclusions. Penetration of current to the interior of the array appears to be efficient, as the current on the center rods is essentially equal to the current on the outer rods. Current loss in the feed due to the formation of magnetic nulls was avoided in these experiments by design of the feed surface ofmore » the cathode and control of the gap to keep the electric fields on the cathode below the emission threshold. Some asymmetry in the electron flow to the rod was observed, but the flow appeared to symmetrize as it reached the end of the rod. Interaction between the rod pinches can be controlled to allow the stable and consistent operation of arrays of rod pinches.« less

  10. Metrics of closed world of Friedmann, agitated by electric charge (towards a theory electromagnetic Friedmanns)

    SciTech Connect (OSTI)

    Markov, M.A.; Frolov, V.P.

    1986-06-10

    The generalization is considered of the well-known Tolman problem to the case of electrically charged dust-like matter of the central symmetrical system. The first integrals of the correspondent system of the Einstein-Maxwell equations are found. The problem is specificated in such a way that with the full charge of the system going to zero, the metrics of the closed Friedman world arises. Such a system is considered at the initial moment, that of maximal enlargement. With any nonvanishing but no-matter-how-small value of the electric charge, the metrics is unclosed. The metrics of the almost-Friedmanian part of the world allows the continuation through the narrow manhole (at the small charge) as the Nordstroem Reissner metrics with the parameters m/sub O/ sq rt (chi) = e/sub o/. The expression for the electric potential in the manhole phi/sub h/ = c-squared/sq rt chi does not depend upon the value of the electric charge. The radius of the manhole r/sub h/ = e/sub O/ sq. rt (chi)/ c-squared increases with the increase of the charge. The state of the manhole as given by the classical description appears as essentially unstable from the quantum-physics viewpoint. The production of various pairs in the enormous electric fields of the manhole gives rise to the polarisation of the latter up to effective charge Z < 137e irrespective of the initial (no matter how great) charge of the system.

  11. Apparatus and method for closed-loop control of reactor power in minimum time

    DOE Patents [OSTI]

    Bernard, Jr., John A.

    1988-11-01

    Closed-loop control law for altering the power level of nuclear reactors in a safe manner and without overshoot and in minimum time. Apparatus is provided for moving a fast-acting control element such as a control rod or a control drum for altering the nuclear reactor power level. A computer computes at short time intervals either the function: .rho.=(.beta.-.rho.).omega.-.lambda..sub.e '.rho.-.SIGMA..beta..sub.i (.lambda..sub.i -.lambda..sub.e ')+l* .omega.+l* [.omega..sup.2 +.lambda..sub.e '.omega.] or the function: .rho.=(.beta.-.rho.).omega.-.lambda..sub.e .rho.-(.lambda..sub.e /.lambda..sub.e)(.beta.-.rho.)+l* .omega.+l* [.omega..sup.2 +.lambda..sub.e .omega.-(.lambda..sub.e /.lambda..sub.e).omega.] These functions each specify the rate of change of reactivity that is necessary to achieve a specified rate of change of reactor power. The direction and speed of motion of the control element is altered so as to provide the rate of reactivity change calculated using either or both of these functions thereby resulting in the attainment of a new power level without overshoot and in minimum time. These functions are computed at intervals of approximately 0.01-1.0 seconds depending on the specific application.

  12. CLOSE COMPANIONS TO YOUNG STARS. I. A LARGE SPECTROSCOPIC SURVEY IN CHAMAELEON I AND TAURUS-AURIGA

    SciTech Connect (OSTI)

    Nguyen, Duy Cuong; Brandeker, Alexis; Van Kerkwijk, Marten H.; Jayawardhana, Ray E-mail: mhvk@astro.utoronto.ca E-mail: dcnguyen@pas.rochester.edu E-mail: alexis@astro.su.se

    2012-02-01

    We present the results of a multiplicity survey of 212 T Tauri stars in the Chamaeleon I and Taurus-Auriga star-forming regions, based on high-resolution spectra from the Magellan Clay 6.5 m telescope. From these data, we achieved a typical radial velocity (RV) precision of {approx}80 m s{sup -1} with slower rotators yielding better precision, in general. For 174 of these stars, we obtained multi-epoch data with sufficient time baselines to identify binaries based on RV variations. We identified eight close binaries and four close triples, of which three and two, respectively, are new discoveries. The spectroscopic multiplicity fractions we find for Chamaeleon I (7%) and Taurus-Auriga (6%) are similar to each other, and to the results of field star surveys in the same mass and period regime. However, unlike the results from imaging surveys, the frequency of systems with close companions in our sample is not seen to depend on primary mass. Additionally, we do not find a strong correlation between accretion and close multiplicity. This implies that close companions are not likely the main source of the accretion shut down observed in weak-lined T Tauri stars. Our results also suggest that sufficient RV precision can be achieved for at least a subset of slowly rotating young stars to search for hot Jupiter planets.

  13. Closing the Gaps in the Budgets of Methane and Nitrous Oxide

    SciTech Connect (OSTI)

    Khalil, Aslam; Rice, Andrew; Rasmussen, Reinhold

    2013-11-22

    Together methane and nitrous oxide contribute almost 40% of the estimated increase in radiative forcing caused by the buildup of greenhouse gases during the last 250 years (IPCC, 2007). These increases are attributed to human activities. Since the emissions of these gases are from biogenic sources and closely associated with living things in the major terrestrial ecosystems of the world, climate change is expected to cause feedbacks that may further increase emissions even from systems normally classified as natural. Our results support the idea that while past increases of methane were driven by direct emissions from human activities, some of these have reached their limits and that the future of methane changes may be determined by feedbacks from warming temperatures. The greatly increased current focus on the arctic and the fate of the carbon frozen in its permafrost is an example of such a feedback that could exceed the direct increases caused by future human activities (Zimov et al. 2006). Our research was aimed at three broad areas to address open questions about the global budgets of methane and nitrous oxide. These areas of inquiry were: The processes by which methane and nitrous oxide are emitted, new sources such as trees and plants, and integration of results to refine the global budgets both at present and of the past decades. For the process studies the main research was to quantify the effect of changes in the ambient temperature on the emissions of methane and nitrous oxide from rice agriculture. Additionally, the emissions of methane and nitrous oxide under present conditions were estimated using the experimental data on how fertilizer applications and water management affect emissions. Rice was chosen for detailed study because it is a prototype system of the wider terrestrial source, its role in methane emissions is well established, it is easy to cultivate and it represents a major anthropogenic source. Here we will discuss the highlights of the results that were obtained.

  14. Three close binaries in different evolutionary stages in the old open cluster NGC 188

    SciTech Connect (OSTI)

    Zhu, L. Y.; Qian, S. B.; Liu, L.; He, J. J.; Liu, N. P.; Zhao, E. G.; Zhang, J.; Wang, J. J.; Soonthornthum, B.

    2014-02-01

    NGC 188 is a good laboratory for studying the formation and evolution of W UMa type contact binaries due to its rich populations of them. We present a detailed photometric study of three short-period close binaries, EP Cep, ES Cep, and V369 Cep, in the old open cluster NGC 188 based on our two-set photometric observations. We discovered that both EP Cep and ES Cep are shallow-contact binaries with continuously decreasing periods. The difference is in their mass ratios. EP Cep has an extremely low-mass ratio, q = 0.15, while ES Cep has a relatively high-mass ratio, q = 0.69, indicating that they lie in different evolutionary stages. ES Cep is likely a newly formed contact binary via a Case A mass transfer, while EP Cep is an evolved system and may be on the oscillations caused by the combined effect of the thermal relaxation oscillation and the variable angular momentum loss. For another system, V369 Cep, we found that it is a primary-filling near-contact binary. Both the semidetached configuration and the continuous decrease in the orbital period indicate that it is undergoing a mass transfer from the primary component to the secondary one. This conclusion is in agreement with the excess luminosity seen in the light curves on the ingress of the secondary minimum produced by the impact of the mass transfer. All of the results suggest that V369 Cep is evolving into contact, and a shallow-contact high-mass ratio system similar to ES Cep will be formed. Then, it will evolve into a low-mass ratio contact binary just like EP Cep, and finally merge into a rapidly rotating single star.

  15. Geophysical exploration and hydrologic impact of the closed Gracelawn landfill in Auburn, ME

    SciTech Connect (OSTI)

    Wisniewski, D. . Geology Dept.)

    1993-03-01

    Several geophysical methods were used over portions of the Gracelawn landfill, in Auburn, Maine to determine the surface boundaries and subsurface structure of this closed landfill, and to determine the landfill's effects on groundwater quality. The landfill was originally a sand and gravel pit excavated in the 1950's and early 1960's, and was used as a landfill from 1964--1977. The site is unlined, has a clay cap, and has been graded and developed as a baseball park. Two seismic refraction lines were performed to obtain a minimum depth to bedrock of 80 m. Seismic velocities of methane gas-saturated trash ranged from 250 to 340 m/s, and sand velocities are approximately 800 m/s. Two electrical resistivity Wenner surveys over the trash yielded the depth to saturated material and thickness of the trash layers. Resistivity values for dry refuse ranged from 1,000-2,000 [Omega]*m. A third electrical resistivity survey yielded the thickness of unsaturated and saturated sands bordering the landfill. Dry sands were found to have a resistivity of 1,000 [Omega]*m, and saturated sands a resistivity of 500 [Omega]*m. Gravity and magnetic survey grids across the site revealed anomalies which were mapped to illustrate the irregular morphology of the buried trash as well as its surface boundaries. Residual magnetic anomalies are on the order of 2,000 nT. Residual gravity anomalies are up to 5 mGal. Groundwater elevations determined by the geophysical survey, combined with a survey of existing water monitoring well logs, indicate that the groundwater flow in the sand and gravel aquifer is to the southeast, away from the public water supply, Lake Auburn, which lies to the north of the site. However, correlations between the bedrock fracture analysis and the geophysical survey illustrate that there is potential for contamination of Lake Auburn via the bedrock aquifer.

  16. Knowledge based ranking algorithm for comparative assessment of post-closure care needs of closed landfills

    SciTech Connect (OSTI)

    Sizirici, Banu; Tansel, Berrin; Kumar, Vivek

    2011-06-15

    Post-closure care (PCC) activities at landfills include cap maintenance; water quality monitoring; maintenance and monitoring of the gas collection/control system, leachate collection system, groundwater monitoring wells, and surface water management system; and general site maintenance. The objective of this study was to develop an integrated data and knowledge based decision making tool for preliminary estimation of PCC needs at closed landfills. To develop the decision making tool, 11 categories of parameters were identified as critical areas which could affect future PCC needs. Each category was further analyzed by detailed questions which could be answered with limited data and knowledge about the site, its history, location, and site specific characteristics. Depending on the existing knowledge base, a score was assigned to each question (on a scale 1-10, as 1 being the best and 10 being the worst). Each category was also assigned a weight based on its relative importance on the site conditions and PCC needs. The overall landfill score was obtained from the total weighted sum attained. Based on the overall score, landfill conditions could be categorized as critical, acceptable, or good. Critical condition indicates that the landfill may be a threat to the human health and the environment and necessary steps should be taken. Acceptable condition indicates that the landfill is currently stable and the monitoring should be continued. Good condition indicates that the landfill is stable and the monitoring activities can be reduced in the future. The knowledge base algorithm was applied to two case study landfills for preliminary assessment of PCC performance.

  17. Reinterpreting SMCRA: {open_quotes}Permitting{close_quotes} phased postmining land use

    SciTech Connect (OSTI)

    Merkin, Z.R.; Nieman, T.J.

    1996-12-31

    The coal producing area of Appalachian Kentucky has a shortage of developable land. The majority of mined land in this region has been reclaimed to pastureland or hayland, while narrow interpretation of the Surface Mining Control and Reclamation Act of 1977 (SMCRA) and regulations, especially regarding bond release, has limited alternative postmining land uses which could support economic development. A study of Federal and State of Kentucky laws and regulations shows that postmining land use regulations and their implementation have focussed on preventing and minimizing environmental damage. Land use and land use planning concepts are not well understood, thus permit applications inadequately address land use needs and the {open_quotes}highest and best use{close_quotes} of a site. Required information about pre-mining conditions is not collected and analyzed in a way useful for determining appropriate postmining land use. More comprehensive, higher quality land use information, with information about regional factors such as transportation, utilities, labor market, etc., should be included in the permit application to identify sites with strong development potential. This, combined with a broader interpretation of the law recognizing the validity of a phased implementation of postmined land use, would continue environmental protection while preparing reclaimed land to meet potential future land use needs. The mining plan can be designed so that appropriate areas are prepared and laid out for future buildings or roads, yet are conducive to interim use for pasture, wildlife or recreation. Reclamation to the interim use, sufficient to protect the public and allow bond release, maintains the potential for later development. Land later can be made available in response to development demands, contributing to a more diversified economy.

  18. Simple shearing flow of dry soap foams with TCP structure[Tetrahedrally Close-Packed

    SciTech Connect (OSTI)

    REINELT,DOUGLAS A.; KRAYNIK,ANDREW M.

    2000-02-16

    The microrheology of dry soap foams subjected to large, quasistatic, simple shearing deformations is analyzed. Two different monodisperse foams with tetrahedrally close-packed (TCP) structure are examined: Weaire-Phelan (A15) and Friauf-Laves (C15). The elastic-plastic response is evaluated by calculating foam structures that minimize total surface area at each value of strain. The minimal surfaces are computed with the Surface Evolver program developed by Brakke. The foam geometry and macroscopic stress are piecewise continuous functions of strain. The stress scales as T/V{sup 1/3} where T is surface tension and V is cell volume. Each discontinuity corresponds to large changes in foam geometry and topology that restore equilibrium to unstable configurations that violate Plateau's laws. The instabilities occur when the length of an edge on a polyhedral foam cell vanishes. The length can tend to zero smoothly or abruptly with strain. The abrupt case occurs when a small increase in strain changes the energy profile in the neighborhood of a foam structure from a local minimum to a saddle point, which can lead to symmetry-breaking bifurcations. In general, the new foam topology associated with each stable solution branch results from a cascade of local topology changes called T1 transitions. Each T1 cascade produces different cell neighbors, reduces surface energy, and provides an irreversible, film-level mechanism for plastic yield behavior. Stress-strain curves and average stresses are evaluated by examining foam orientations that admit strain-periodic behavior. For some orientations, the deformation cycle includes Kelvin cells instead of the original TCP structure; but the foam does not remain perfectly ordered. Bifurcations during subsequent T1 cascades lead to disorder and can even cause strain localization.

  19. A method for quick assessment of CO2 storage capacity in closedand semi-closed saline formations

    SciTech Connect (OSTI)

    Zhou, Q.; Birkholzer, J.; Tsang, C.F.; Rutqvist, J.

    2008-02-10

    Saline aquifers of high permeability bounded by overlying/underlying seals may be surrounded laterally by low-permeability zones, possibly caused by natural heterogeneity and/or faulting. Carbon dioxide (CO{sub 2}) injection into and storage in such 'closed' systems with impervious seals, or 'semi-closed' systems with nonideal (low-permeability) seals, is different from that in 'open' systems, from which the displaced brine can easily escape laterally. In closed or semi-closed systems, the pressure buildup caused by continuous industrial-scale CO{sub 2} injection may have a limiting effect on CO{sub 2} storage capacity, because geomechanical damage caused by overpressure needs to be avoided. In this research, a simple analytical method was developed for the quick assessment of the CO{sub 2} storage capacity in such closed and semi-closed systems. This quick-assessment method is based on the fact that native brine (of an equivalent volume) displaced by the cumulative injected CO{sub 2} occupies additional pore volume within the storage formation and the seals, provided by pore and brine compressibility in response to pressure buildup. With nonideal seals, brine may also leak through the seals into overlying/underlying formations. The quick-assessment method calculates these brine displacement contributions in response to an estimated average pressure buildup in the storage reservoir. The CO{sub 2} storage capacity and the transient domain-averaged pressure buildup estimated through the quick-assessment method were compared with the 'true' values obtained using detailed numerical simulations of CO{sub 2} and brine transport in a two-dimensional radial system. The good agreement indicates that the proposed method can produce reasonable approximations for storage-formation-seal systems of various geometric and hydrogeological properties.

  20. Apparatus for adjusting and maintaining the humidity of gas at a constant value within a closed system

    DOE Patents [OSTI]

    Abernathy, B.R.; Walters, R.R.

    1985-08-05

    The humidity of a gas within a closed system is maintained at constant level by providing a saturated salt solution within a lower chamber in communication with an upper chamber conjointly defined by upper and lower container sections in sealing contact with each other to establish a closed container. A partition wall separates the salt solution from the test region in the upper chamber. A tube extending through the partition plate allows humidified gas to pass from the lower to the upper chamber. A glass wool plug or membranous material within the tube prevents migration of salt into the test region.

  1. Apparatus for adjusting and maintaining the humidity of gas at a constant value within a closed system

    DOE Patents [OSTI]

    Abernathy, Bethel R.; Walters, Ronald R.

    1986-01-01

    The humidity of a gas within a closed system is maintained at constant level by providing a saturated salt solution within a lower chamber in communication with an upper chamber conjointly defined by upper and lower container sections in sealing contact with each other to establish a closed container. A partition wall separates the salt solution from the test region in the upper chamber. A tube extending through the partition plate allows humidified gas to pass from the lower to the upper chamber. A glass wool plug or membranous material within the tube prevents migration of salt into the test region.

  2. Studies on a self-excited closed cycle MHD generator for pulse power system

    SciTech Connect (OSTI)

    Harada, N.

    1998-07-01

    The authors have been proposing to use a closed cycle disk MHD generator as an alternative of an open cycle linear generator for applications to portable pulsed power supply because of its special advantages of durability and reliability. Steady state operation with applied magnetic field mode, magnet coil design and dynamic behavior of a disk type MHD generator in self-excited mode were studied numerically. One-dimensional numerical code based on MacCormack method were used. Thermal input to the disk channel was 40MW and working medium was argon seeded with potassium driven by the nonequilibrium plasma generator. At first, steady state solutions were obtained for both initial applied field of 0.7T and for full magnetic field 4T. For any load conditions examined, generator behaved quite stable and output current reaches its certain final value. Based on these steady state output current, they successfully designed suitable magnet coils. Current density was about 15A/mm{sup 2} . This value was quite reasonable and durable even for relatively long duration. With the designed magnet coils, dynamic behavior of the disk generator was studied. For transition from initial applied field mode to self-excited mode, switching was succeeded and there was no abnormal fluctuations in current trace. Noticeable instability did not develop in this period. However, in self-excited mode, the output current significantly increases and becomes much higher than the rated current of 1720A at B=4T after time=4sec., in spite of the fact that the output current increases steadily and very smoothly until that time. Sudden development of ionization instability was suggested from distributions of electron temperature and number density. They tried to limit excitation current to the magnet coils exactly to the designed value using bypass circuit to prevent from development of ionization instability. Then stable operation in the self-excited mode was successfully achieved. Further the authors confirmed the stable operation in SE mode without additional control when the value of initial applied field was increased to 4T. Further, if its value was higher than 2.5T, output current stably increased up to the designed value and converged to the designed operating conditions. Such a behavior was not completely clarified so far and they need to study further that how to reach and/or how to design stable operation in SE mode.

  3. Binary and ternary gas mixtures with temperature enhanced diffuse glow discharge characteristics for use in closing switches

    DOE Patents [OSTI]

    Christophorou, L.G.; Hunter, S.R.

    1990-06-26

    An improvement to the gas mixture used in diffuse glow discharge closing switches is disclosed which includes binary and ternary gas mixtures which are formulated to exhibit decreasing electron attachment with increasing temperature. This increases the efficiency of the conductance of the glow discharge and further inhibits the formation of an arc. 11 figs.

  4. Binary and ternary gas mixtures with temperature enhanced diffuse glow discharge characteristics for use in closing switches

    DOE Patents [OSTI]

    Christophorou, L.G.; Hunter, S.R.

    1988-06-28

    An improvement to the gas mixture used in diffuse glow discharge closing switches is disclosed which includes binary and ternary gas mixtures which are formulated to exhibit decreasing electron attachment with increasing temperature. This increases the efficiency of the conductance of the glow discharge and further inhibits the formation of an arc. 11 figs.

  5. Coal air turbine {open_quotes}CAT{close_quotes} program, Invention 604. Third quarter project report, April 1995--June 1995

    SciTech Connect (OSTI)

    Foster-Pegg, R.W.

    1995-07-31

    The primary objective of this {open_quotes}CAT{close_quotes} project is to complete a conceptual design of this unique new combination of existing technology with cost estimates to show that the {open_quotes}CAT{close_quotes} system offers the economic incentive with low technical risk for a plant to be built which will demonstrate its viability. The technologies involved in the components of a {open_quotes}CAT{close_quotes} plant are proven, and the integration of the components into a complete plant is the only new development activity involved. Industry and the Federal General Services Administration (GSA), require the demonstration of a {open_quotes}commercial plant{close_quotes} before the viability of a new concept is accepted. To satisfy this requirement and construction of a plant of commercially viable size in excess of 15 MW if cogeneration and above 30 MW if all power, is proposed. This plant will produce economical power and heat for the owner. The plant will operate a full commercial life and continue as an operating demonstration of the viability of the technology, gathering long term life and maintenance data, all adding to the credibility of the concept.

  6. Binary and ternary gas mixtures with temperature enhanced diffuse glow discharge characteristics for use in closing switches

    DOE Patents [OSTI]

    Christophorou, Loucas G. (Oak Ridge, TN); Hunter, Scott R. (Oak Ridge, TN)

    1990-01-01

    An improvement to the gas mixture used in diffuse glow discharge closing switches is disclosed which includes binary and ternary gas mixtures which are formulated to exhibit decreasing electron attachment with increasing temperature. This increases the efficiency of the conductance of the glow discharge and further inhibits the formation of an arc.

  7. Genetically modified yeast of the species Issatchenkia orientalis and closely relates species, and fermentation processes using same

    DOE Patents [OSTI]

    Suominen, Pirkko; Aristidou, Aristos; Pentilla, Merja; Ilmen, Marja; Ruohonen, Laura; Koivuranta, Kari; Roberg-Perez, Kevin

    2012-01-17

    Cells of the species Issatchenkia orientalis and closely related yeast species are transformed with a vector to introduce an exogenous lactate dehydrogenase gene. The cells produce lactic acid efficiently and are resistant at low pH, high lactate titer conditions.

  8. Comments on Economides and Ehlig-Economides,"Sequestering carbon dioxide in a closed underground volume," SPE 124430, October 2009

    SciTech Connect (OSTI)

    Oldenburg, Curt; Pruess, Karsten; Birkholzer, Jens; Doughty, Christine

    2009-10-22

    The paper examines the pressure increase resulting from injection of CO2 into a 1D radial system with closed boundaries. The finding is that unacceptably high pressures are obtained when only 1% or less of the pore volume is occupied by injected CO2. These results are used to make the general conclusion that large-scale CCS is not feasible.

  9. Advancements in Ti Alloy Powder Production by Close-Coupled Gas Atomization

    SciTech Connect (OSTI)

    Heidloff, Andy; Rieken, Joel; Anderson, Iver; Byrd, David

    2011-04-01

    As the technology for titanium metal injection molding (Ti-MIM) becomes more readily available, efficient Ti alloy fine powder production methods are required. An update on a novel close-coupled gas atomization system has been given. Unique features of the melting apparatus are shown to have measurable effects on the efficiency and ability to fully melt within the induction skull melting system (ISM). The means to initiate the melt flow were also found to be dependent on melt apparatus. Starting oxygen contents of atomization feedstock are suggested based on oxygen pick up during the atomization and MIM processes and compared to a new ASTM specification. Forming of titanium by metal injection molding (Ti-MIM) has been extensively studied with regards to binders, particle shape, and size distribution and suitable de-binding methods have been discovered. As a result, the visibility of Ti-MIM has steadily increased as reviews of technology, acceptability, and availability have been released. In addition, new ASTM specification ASTM F2885-11 for Ti-MIM for biomedical implants was released in early 2011. As the general acceptance of Ti-MIM as a viable fabrication route increases, demand for economical production of high quality Ti alloy powder for the preparation of Ti-MIM feedstock correspondingly increases. The production of spherical powders from the liquid state has required extensive pre-processing into different shapes thereby increasing costs. This has prompted examination of Ti-MIM with non-spherical particle shape. These particles are produced by the hydride/de-hydride process and are equi-axed but fragmented and angular which is less than ideal. Current prices for MIM quality titanium powder range from $40-$220/kg. While it is ideal for the MIM process to utilize spherical powders within the size range of 0.5-20 {mu}m, titanium's high affinity for oxygen to date has prohibited the use of this powder size range. In order to meet oxygen requirements the top size cut has traditionally been 45 {mu}m, and in some instances a bottom cut at +5 {mu}m is made to remove ultra-fine particles and reduce oxygen content. Predictably, use of irregular shaped or larger particle feedstock powder can reduce part quality as sintering shrinkage and part detail suffer. Thus, widespread production and technological use of Ti-MIM is limited due in large part to Ti alloy feedstock cost and availability, not MIM processing capability. Lower cost feedstock of fine, spherical Ti alloy powder with sufficient purity must be available in order to fully utilize the advantages of the Ti-MIM processing route allowing expansion of the market to small complex Ti parts in many high volume applications.

  10. Optical, electronic, and structural properties of uncoupled and close-packed arrays of InP quantum dots

    SciTech Connect (OSTI)

    Micic, O.I.; Jones, K.M.; Cahill, A.; Nozik, A.J.

    1998-12-03

    Solid films consisting of close-packed arrays of InP quantum dots have been prepared by slowly evaporating colloidal solutions of InP quantum dots. The diameters of the quantum dots were controlled to be between about 30 to 60 {angstrom}; size-selective precipitation yielded a size distribution of about 10% about the mean diameter. The arrays show regions of hexagonal order, as well as disordered regions. Oxide layers can form irreversibly on the quantum dot surface and limit the effectiveness of the size-selective precipitation. Photoluminescence spectra obtained from close-packed films of InP quantum dots formed from quantum dots with a single mean diameter and from a mixture of two quantum dot sizes show that energy transfer occurs from the photoexcited smaller quantum dots to the larger quantum dots. The efficiency of this energy transfer process is high.

  11. Closed loop engine control for regulating NOx emissions, using a two-dimensional fuel-air curve

    DOE Patents [OSTI]

    Bourn, Gary D.; Smith, Jack A.; Gingrich, Jess W.

    2007-01-30

    An engine control strategy that ensures that NOx emissions from the engine will be maintained at an acceptable level. The control strategy is based on a two-dimensional fuel-air curve, in which air manifold pressure (AMP) is a function of fuel header pressure and engine speed. The control strategy provides for closed loop NOx adjustment to a base AMP value derived from the fuel-air curve.

  12. Natural Gas Weekly Update

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

    modest 0.50-0.60. On the week (Wednesday, November 26-Wednesday, December 3), the Henry Hub spot price rose 0.59 per MMBtu to 5.45, closing above 5 for the first time...

  13. FORMATION OF CLOSE IN SUPER-EARTHS AND MINI-NEPTUNES: REQUIRED DISK MASSES AND THEIR IMPLICATIONS

    SciTech Connect (OSTI)

    Schlichting, Hilke E.

    2014-11-01

    Recent observations by the Kepler space telescope have led to the discovery of more than 4000 exoplanet candidates consisting of many systems with Earth- to Neptune-sized objects that reside well inside the orbit of Mercury around their respective host stars. How and where these close-in planets formed is one of the major unanswered questions in planet formation. Here, we calculate the required disk masses for in situ formation of the Kepler planets. We find that if close-in planets formed as isolation masses, then standard gas-to-dust ratios yield corresponding gas disks that are gravitationally unstable for a significant fraction of systems, ruling out such a scenario. We show that the maximum width of a planet's accretion region in the absence of any migration is 2v {sub esc}/?, where v {sub esc} is the escape velocity of the planet and ? is the Keplerian frequency, and we use it to calculate the required disk masses for in situ formation with giant impacts. Even with giant impacts, formation without migration requires disk surface densities in solids at semi-major axes of less than 0.1AU of 10{sup 3}-10{sup 5} g cm{sup 2}, implying typical enhancements above the minimum-mass solar nebular (MMSN) by at least a factor of 20. Corresponding gas disks are below but not far from the gravitational stability limit. In contrast, formation beyond a fewAU is consistent with MMSN disk masses. This suggests that the migration of either solids or fully assembled planets is likely to have played a major role in the formation of close-in super-Earths and mini-Neptunes.

  14. Belgian experience in applying the {open_quotes}leak-before-break{close_quotes} concept to the primary loop piping

    SciTech Connect (OSTI)

    Gerard, R.; Malekian, C.; Meessen, O.

    1997-04-01

    The Leak Before Break (LBB) concept allows to eliminate from the design basis the double-ended guillotine break of the primary loop piping, provided it can be demonstrated by a fracture mechanics analysis that a through-wall flaw, of a size giving rise to a leakage still well detectable by the plant leak detection systems, remains stable even under accident conditions (including the Safe Shutdown Earthquake (SSE)). This concept was successfully applied to the primary loop piping of several Belgian Pressurized Water Reactor (PWR) units, operated by the Utility Electrabel. One of the main benefits is to permit justification of supports in the primary loop and justification of the integrity of the reactor pressure vessel and internals in case of a Loss Of Coolant Accident (LOCA) in stretch-out conditions. For two of the Belgian PWR units, the LBB approach also made it possible to reduce the number of large hydraulic snubbers installed on the primary coolant pumps. Last but not least, the LBB concept also facilitates the steam generator replacement operations, by eliminating the need for some pipe whip restraints located close to the steam generator. In addition to the U.S. regulatory requirements, the Belgian safety authorities impose additional requirements which are described in details in a separate paper. An novel aspect of the studies performed in Belgium is the way in which residual loads in the primary loop are taken into account. Such loads may result from displacements imposed to close the primary loop in a steam generator replacement operation, especially when it is performed using the {open_quote}two cuts{close_quotes} technique. The influence of such residual loads on the LBB margins is discussed in details and typical results are presented.

  15. Summary report on close-coupled subsurface barrier technology: Initial field trials to full-scale demonstration

    SciTech Connect (OSTI)

    Heiser, J.H.; Dwyer, B.

    1997-09-01

    The primary objective of this project was to develop and demonstrate the installation and measure the performance of a close-coupled barrier for the containment of subsurface waste or contaminant migration. A close-coupled barrier is produced by first installing a conventional, low-cost, cement-grout containment barrier followed by a thin lining of a polymer grout. The resultant barrier is a cement-polymer composite that has economic benefits derived from the cement and performance benefits from the durable and resistant polymer layer. The technology has matured from a regulatory investigation of the issues concerning the use of polymers to laboratory compatibility and performance measurements of various polymer systems to a pilot-scale, single column injection at Sandia to full-scale demonstration. The feasibility of the close-coupled barrier concept was proven in a full-scale cold demonstration at Hanford, Washington and then moved to the final stage with a full-scale demonstration at an actual remediation site at Brookhaven National Laboratory (BNL). At the Hanford demonstration the composite barrier was emplaced around and beneath a 20,000 liter tank. The secondary cement layer was constructed using conventional jet grouting techniques. Drilling was completed at a 45{degree} angle to the ground, forming a cone-shaped barrier. The primary barrier was placed by panel jet-grouting with a dual-wall drill stem using a two part polymer grout. The polymer chosen was a high molecular weight acrylic. At the BNL demonstration a V-trough barrier was installed using a conventional cement grout for the secondary layer and an acrylic-gel polymer for the primary layer. Construction techniques were identical to the Hanford installation. This report summarizes the technology development from pilot- to full-scale demonstrations and presents some of the performance and quality achievements attained.

  16. {open_quotes}Media-On-Demand{close_quotes} multimedia electronic mail: A tool for collaboration on the web

    SciTech Connect (OSTI)

    Tsoi, Kei Nam; Rahman, S.M.

    1996-12-31

    Undoubtedly, multimedia electronic mail has many advantages in exchanging information electronically in a collaborative work. The existing design of e-mail systems architecture is inefficient in exchanging multimedia message which has much larger volume, and requires more bandwidth and storage space than the text-only messages. This paper presents an innovative method for exchanging multimedia mail messages in a heterogeneous environment to support collaborative work over YAW on the Internet. We propose a {open_quotes}Parcel Collection{close_quotes} approach for exchanging multimedia electronic mail messages. This approach for exchanging multimedia electronic mail messages integrates the current WWW technologies with the existing electronic mail systems.

  17. The {open_quotes}Command and Control{close_quotes} philosophy of the Communist party of China

    SciTech Connect (OSTI)

    Kominiak, G.J.; Eisenberger, J.C.; Menaul, K.L.

    1996-01-01

    China`s central political authorities have constructed a system which is designed to enable them to exert their personal influence and control over each level of every organization in the country -- both civil and military. The Communist Party of China (CPC) is represented at all levels of each and every organization, including the People`s Liberation Army (PLA). These Party entities are intended to both provide oversight and to ensure that Party policies, directives and orders are obeyed. This penchant for political control, which may have its roots in China`s imperial past, appears to have been reinforced by the early developmental path chosen by the Party`s leadership. Current attempts aimed at maintaining political control of its resources, especially the military, are embodied in the formal system of {open_quotes}Political Work.{close_quotes} In the PLA, this system of political control results in the involvement of political organs in day-to-day military matters to an extent unheard of in the West. Further work is needed in order to understand, more fully, both the system of {open_quotes}Political Work{close_quotes} and its contributions to the overall military (and civil) command and control philosophic of the Communist Party of China.

  18. A preliminary assessment of the effects of groundwater flow on closed-loop ground source heat pump systems

    SciTech Connect (OSTI)

    Chiasson, A.D.; Rees, S.J.; Spitler, J.D.

    2000-07-01

    A preliminary study has been made of the effects of groundwater flow on the heat transfer characteristics of vertical closed-loop heat exchangers and the ability of current design and in-situ thermal conductivity measurement techniques to deal with these effects. It is shown that an initial assessment of the significance of groundwater flow can be made by examining the Peclet number of the flow. A finite-element numerical groundwater flow and heat transfer model has been used to simulate the effects of groundwater flow on a single closed-loop heat exchanger in various geologic materials. These simulations show that advection of heat by groundwater flow significantly enhances heat transfer in geologic materials with high hydraulic conductivity, such as sands, gravels, and rocks exhibiting fractures and solution channels. Simulation data were also used to derive effective thermal conductivities with an in-situ thermal conductivity estimation procedure. These data were used to design borehole fields of different depths for a small commercial building. The performance of these borehole field designs was investigated by simulating each borehole field using the pre-calculated building loads over a ten-year period. Results of these simulations, in terms of the minimum and peak loop temperatures, were used to examine the ability of current design methods to produce workable and efficient designs under a range of groundwater flow conditions.

  19. TIDAL DISRUPTIONS OF WHITE DWARFS FROM ULTRA-CLOSE ENCOUNTERS WITH INTERMEDIATE-MASS SPINNING BLACK HOLES

    SciTech Connect (OSTI)

    Haas, Roland; Bode, Tanja; Laguna, Pablo; Shcherbakov, Roman V.

    2012-04-20

    We present numerical relativity results of tidal disruptions of white dwarfs from ultra-close encounters with a spinning, intermediate-mass black hole (IMBH). These encounters require a full general relativistic treatment of gravity. We show that the disruption process and prompt accretion of the debris strongly depend on the magnitude and orientation of the black hole (BH) spin. However, the late-time accretion onto the BH follows the same decay, M-dot {proportional_to} t{sup -5/3}, estimated from Newtonian gravity disruption studies. We compute the spectrum of the disk formed from the fallback material using a slim disk model. The disk spectrum peaks in the soft X-rays and sustains Eddington luminosity for 1-3 yr after the disruption. For arbitrary BH spin orientations, the disrupted material is scattered away from the orbital plane by relativistic frame dragging, which often leads to obscuration of the inner fallback disk by the outflowing debris. The disruption events also yield bursts of gravitational radiation with characteristic frequencies of {approx}3.2 Hz and strain amplitudes of {approx}10{sup -18} for galactic IMBHs. The optimistic rate of considered ultra-close disruptions is consistent with no sources found in the ROSAT all-sky survey. Future missions like Wide-Field X-ray Telescope could observe dozens of events.

  20. Closed-Form Solution for the Effect of Fuel Decay and Thermoelectric Degradation on Output of SiGe RTGs

    SciTech Connect (OSTI)

    Schock, Alfred

    1991-08-01

    Presented at the 26th IECEC in Boston, MA August 4-9, 1991. The paper derives a closed-form solution for the long-term effect of fuel decay and thermoelectric degradation on the performance of Radioisotope Thermoelectric Generators employing silicon-germanium converter elements. RTGs of this type were used to power the recent Galileo and Ulysses space exploration missions, and are slated for use on the upcoming CRAF and Cassini missions. The method described applies not only to uniform-temperature RTGs, but also to RTGs with significant axial and circumferential variations in the couples' cold-junction temperatures and voltages (due to unsymmetrically obstructed heat rejection paths). This is important for the mutually blocking RTGs on the CRAF and Cassini spacecraft, and even more so for the reflector-blocked Solar Probe RTGs. The method for predicting RTG degradation that is dervied in this paper is based on both analytical and experimental data. It accounts for the effect of diminishing hot-junction temperatures on thermoelectric degradation rates. The method leads to an integral equation, for which the author was able to derive a closed-form solution. The solution was successfully validated by comparison with long-term test data. It enables the RTG designer to predict the power output profile throughout the mission, to ensure that it satisfies the mission's power demand profile. There are four copies in the file.

  1. Scoping Period Closed

    Broader source: Energy.gov [DOE]

    The environmental impact statement (EIS) scoping period has ended. DOE is preparing a Draft EIS that will analyze and compare the potential environmental impacts of various alternative approaches...

  2. Comment Period Closed Explained

    Broader source: Energy.gov [DOE]

    The public comment period on the Draft Environmental Impact Statement (EIS) has ended, and DOE is preparing a Final EIS. The Final EIS will consider and respond to all timely public comments on the...

  3. Fast closing valve

    DOE Patents [OSTI]

    Hanson, Clark L.

    1984-01-10

    A valve is provided for protecting the high vacuum of a particle accelera in the event of air leakage, wherein the valve provides an axially symmetrical passage to avoid disturbance of the partical beam during normal operation, and yet enables very rapid and tight closure of the beam-carrying pipe in the event of air leakage. The valve includes a ball member (30) which can rotate between a first position wherein a bore (32) in the member is aligned with the beam pipe, and a second position out of line with the pipe. A seal member (38) is flexibly sealed to the pipe, and has a seal end which can move tightly against the ball member after the bore has rotated out of line with the pipe, to thereby assure that the seal member does not retard rapid rotation of the ball valve member. The ball valve member can be rapidly rotated by a conductive arm (40) fixed to it and which is rotated by the discharge of a capacitor bank through coils (44, 45) located adjacent to the arm.

  4. Closed end regeneration method

    DOE Patents [OSTI]

    Yang, Arthur Jing-Min; Zhang, Yuehua

    2006-06-27

    A nanoporous reactive adsorbent incorporates a relatively small number of relatively larger reactant, e.g. metal, enzyme, etc. particles (10) forming a discontinuous or continuous phase interspersed among and surrounded by a continuous phase of smaller adsorbent particles (12) and connected interstitial pores (14) therebetween. The reactive adsorbent can effectively remove inorganic or organic impurities in a liquid by causing the liquid to flow through the adsorbent. For example, silver ions may be adsorbed by the adsorbent particles (12) and reduced to metallic silver by reducing metal, such as irons, as the reactant particles (10). The column can be regenerated by backwashing with the liquid effluent containing, for example, acetic acid.

  5. Extracted ion current density in close-coupling multi-antenna type radio frequency driven ion source: CC-MATIS

    SciTech Connect (OSTI)

    Oka, Y. E-mail: oka@LHD.nifs.ac.jp; Shoji, T.

    2014-02-15

    Positive ions are extracted by using a small extractor from the Close-Coupling Multi-Antenna Type radio frequency driven Ion Source. Two types of RF antenna are used. The maximum extracted ion current density reaches 0.106 A/cm{sup 2}. The RF net power efficiency of the extracted ion current density under standard condition is 11.6 mA/cm{sup 2}/kW. The efficiency corresponds to the level of previous beam experiments on elementary designs of multi-antenna sources, and also to the efficiency level of a plasma driven by a filament in the same chamber. The multi-antenna type RF plasma source is promising for all metal high density ion sources in a large volume chamber.

  6. Report on {open_quotes}inspection of human subject research in intelligence and intelligence-related projects{close_quotes}

    SciTech Connect (OSTI)

    1996-01-16

    Executive Order 12333, {open_quotes}United States Intelligence Activities,{close_quotes} (1) designates the Department`s intelligence element as a member of the Intelligence Community, and (2) states that no agency within the Intelligence community shall sponsor, contract for or conduct research on human subjects except in accordance with guidelines issued by the Department of Health and Human Services. The Federal policy for the Protection of Human Subjects, which was based on Department of Health and Human Services regulations, was promulgated in Title 10 Code of Federal Regulations Part 745 by the Department of Energy. The purpose of this inspection was to review the internal control procedures used by the Office of Nonproliferation and National Security to manage selected intelligence and intelligence-related projects that involve human subject research.

  7. Approximation of continuity of lenticular Mesaverde Group sandstone lenses utilizing close-well correlations, Piceance Basin, NW Colorado. SPE 11610

    SciTech Connect (OSTI)

    Peterson, R.E.; Kohout, J.B.

    1982-01-01

    Mesaverde Group sandstone units in 13 closely-spaced wells in the central and southern Piceance Basin of Colorado were correlated utilizing wireline log response quantitatively and qualitatively. Based on these correlations, the environmental subdivisions of the Mesaverde Group were characterized as follows: (1) paralic (upper mixed-marine) zone, occurring in the uppermost Mesaverde Group, includes thick sandstone units which are interpreted to be regionally continuous, (2) fluvial zone, containing point-bars 20 to 30+ ft thick, is interpreted to be correlatable to a maximum of 6800 ft, and (3) paludal zone has insufficient data to adequately characterize the sand units. However, 63 percent of the units are correlatable across at least 139 ft. An approximation of the dimensional characteristics of Mesaverde sandstone units has potential applications in designing hydraulic fracturing treatments and estimating gas reserves more accurately. 15 figures, 2 tables.

  8. {open_quotes}Full steam ahead{close_quotes} (a historical review of geothermal power development in the Philippines)

    SciTech Connect (OSTI)

    Gazo, F.M.

    1997-12-31

    The Philippine geothermal energy development is now considered in a state of maturity. After more than 20 years of geothermal experience, the total geothermal installed capacity in the Philippines reached 1,455 MW (1996) or about 12% of the total installed power plant capacity. This also enabled the Philippines to become the second largest producer of geothermal energy in the world. The country`s track record in harnessing geothermal energy is considered a revelation, as it continues with its vision of {open_quotes}full steam ahead{close_quotes}, originally conceived when commercial geothermal operation started in 1973. It is thus proper and timely to refer to historical highlights and experiences in geothermal energy development for planning and implementation of the country`s geothermal energy program.

  9. Closed bore XMR (CBXMR) systems for aortic valve replacement: Active magnetic shielding of x-ray tubes

    SciTech Connect (OSTI)

    Bracken, John A.; DeCrescenzo, Giovanni; Komljenovic, Philip; Lillaney, Prasheel V.; Fahrig, Rebecca; Rowlands, J. A.

    2009-05-15

    Hybrid closed bore x-ray/MRI systems are being developed to improve the safety and efficacy of percutaneous aortic valve replacement procedures by harnessing the complementary strengths of the x-ray and MRI modalities in a single interventional suite without requiring patient transfer between two rooms. These systems are composed of an x-ray C-arm in close proximity ({approx_equal}1 m) to an MRI scanner. The MRI magnetic fringe field can cause the electron beam in the x-ray tube to deflect. The deflection causes the x-ray field of view to shift position on the detector receptacle. This could result in unnecessary radiation exposure to the patient and the staff in the cardiac catheterization laboratory. Therefore, the electron beam deflection must be corrected. The authors developed an active magnetic shielding system that can correct for electron beam deflection to within an accuracy of 5% without truncating the field of view or increasing exposure to the patient. This system was able to automatically adjust to different field strengths as the external magnetic field acting on the x-ray tube was changed. Although a small torque was observed on the shielding coils of the active shielding system when they were placed in a magnetic field, this torque will not impact their performance if they are securely mounted on the x-ray tube and the C-arm. The heating of the coils of the shielding system for use in the clinic caused by electric current was found to be slow enough not to require a dedicated cooling system for one percutaneous aortic valve replacement procedure. However, a cooling system will be required if multiple procedures are performed in one session.

  10. Close-Out Report of DOE Grant DE-FG02-91ER40682 for November 1, 2009 - April 30, 2013

    SciTech Connect (OSTI)

    Paulini, Manfred

    2013-07-20

    This document is the close-out report of Grant DE-FG02-91ER40682 from the Carnegie Mellon University (CMU) High-Energy Physics (HEP) Group to the U.S. Department of Energy (DOE).

  11. Price hub","Trade date","Delivery start date","Delivery

    U.S. Energy Information Administration (EIA) Indexed Site

    ...vnd.ms-excel",42265,42265,5.2,4,4.733,2.1824,154800,46,20 "Algonquin ...-excel",42236,42236,2.7,2.66,2.688,-0.0055,182400,31,18 "Malin","application...

  12. Secretary of Energy Advisory Board to Discuss Hubs+ and FracFocus Task Force Final Reports

    Broader source: Energy.gov [DOE]

    Washington, D.C. – On Friday, March 28, 2014, the Secretary of Energy Advisory Board (SEAB), which provides advice and recommendations on the Department’s activities, will meet to discuss and take...

  13. The Battery Storage Hub is Making the Battery of the Future - Joint Center

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

    Availability and Price of Petroleum and Petroleum Products Produced in Countries Other Than Iran February 9, 2016 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 Number 25 in a series of reports required by section 1245(d)(4)(A) of the National Defense Authorization Act for Fiscal Year 2012 February 2016 U.S. Energy Information Administration | Availability and Price of Petroleum and Petroleum Products Produced in Countries Other Than Iran 1 Table

  14. Potential Wind Capacity at 110-m Hub Height for the United States

    Wind Powering America (EERE)

  15. Potential Wind Capacity at 140-m Hub Height for the United States

    Wind Powering America (EERE)

  16. Price hub","Trade date","Delivery start date","Delivery

    U.S. Energy Information Administration (EIA) Indexed Site

    "Algonquin Citygates","applicationvnd.ms-excel",42375,42375,5.75,5.5,5.5882,-2.3285,25500,5,7 "Algonquin Citygates","applicationvnd.ms-excel",42376,42376,5.1,4.9,4.9846,-0.6036,13000,...

  17. Price hub","Trade date","Delivery start date","Delivery

    U.S. Energy Information Administration (EIA) Indexed Site

    North 345KV Peak","applicationvnd.ms-excel",42374,42374,22.75,22.5,22.63,-1.12,1600,2,2 "ERCOT North 345KV Peak","applicationvnd.ms-excel",42375,42375,20,19.75,19.81,-2.82,14400...

  18. Price hub","Trade date","Delivery start date","Delivery

    U.S. Energy Information Administration (EIA) Indexed Site

    "applicationvnd.ms-excel","applicationvnd.ms-excel",16,12,13.75144509,-6.6446,17300,5,7 "Algonquin Citygates","applicationvnd.ms-excel","applicationvnd.ms-excel","application...

  19. Innovative Miniaturized Heat Pumps for Buildings: Modular Thermal Hub for Building Heating, Cooling and Water Heating

    SciTech Connect (OSTI)

    None

    2010-09-01

    BEETIT Project: Georgia Tech is using innovative components and system design to develop a new type of absorption heat pump. Georgia Techs new heat pumps are energy efficient, use refrigerants that do not emit greenhouse gases, and can run on energy from combustion, waste heat, or solar energy. Georgia Tech is leveraging enhancements to heat and mass transfer technology possible in microscale passages and removing hurdles to the use of heat-activated heat pumps that have existed for more than a century. Use of microscale passages allows for miniaturization of systems that can be packed as monolithic full-system packages or discrete, distributed components enabling integration into a variety of residential and commercial buildings. Compared to conventional heat pumps, Georgia Techs design innovations will create an absorption heat pump that is much smaller, has higher energy efficiency, and can also be mass produced at a lower cost and assembly time.

  20. Prediction of stochastic blade loads for three-bladed, rigid-hub rotors

    SciTech Connect (OSTI)

    Wright, A.D.; Weber, T.L.; Thresher, R.W.; Butterfield, C.P.

    1989-11-01

    Accurately predicting wind turbine blade loads and response is important for the design of future wind turbines. The need to include turbulent wind inputs in structural dynamics models is widely recognized. In this paper, the Force and Loads Analysis Program (FLAP) code will be used to predict turbulence-induced bending moments for the SERI Combined Experiment rotor blade and the Howden 330-kW blade. FLAP code predictions will be compared to the power spectra of measured blade-bending moments. Two methods will be used to generate turbulent wind inputs to FLAP: a theoretical simulation: the Pacific Northwest Laboratories (PNL) simulation theory; and measured wind-speed data taken from an array of anemometers upwind of the turbine. Turbulent wind-speed time series are input to FLAP for both methods outlined above. Power spectra of predicted flap-bending moments are compared to measured results for different wind conditions. Conclusions are also drawn as to the ability of the turbulence simulation models to provide accurate wind input to FLAP and to FLAP's ability to accurately simulate blade response to turbulence. Finally, suggestions are made as to needed improvements in the theoretical model. 11 refs., 8 figs.

  1. High Impact Technology Hub- Resources for Evaluators- General Measurement and Verification Plans

    Broader source: Energy.gov [DOE]

    The HIT Catalyst conducts technology demonstrations in three main phases govern demonstrations: Site Evaluation, Selection and Project Kick-Off, Measurement and Verification Scoping and Plan...

  2. Price hub","Trade date","Delivery start date","Delivery

    U.S. Energy Information Administration (EIA) Indexed Site

    42007,42009,8,7,7.6341,1.8034,56300,18,8 "Algonquin Citygates","applicationvnd.ms-excel",42010,42010,10.75,9,9.9179,2.2838,72100,20,12 "Algonquin Citygates","application...

  3. Price hub","Trade date","Delivery start date","Delivery

    U.S. Energy Information Administration (EIA) Indexed Site

    42009,42009,40,39,39.5,10.58,1600,2,3 "ERCOT North 345KV Peak","applicationvnd.ms-excel",42010,42010,29.5,28.5,29.07,-10.43,12000,15,12 "ERCOT North 345KV Peak","application...

  4. Tour Brookhaven Lab's Future Hub for Energy Research: The Interdisciplinary Science Building

    ScienceCinema (OSTI)

    Gerry Stokes; Jim Misewich

    2013-07-19

    Construction is under way for the Interdisciplinary Science Building (ISB), a future world-class facility for energy research at Brookhaven Lab. Meet two scientists who will develop solutions at the ISB to tackle some of the nation's energy challenges, and tour the construction site.

  5. Sandia Energy - ECIS and i-GATE: Innovation Hub Connects Clean...

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

    support system to accelerate the commercialization of innovative technologies related to green transportation and clean energy. There are now eight i-GATE clients developing fuel...

  6. Secretary of Energy Advisory Board to Discuss Hubs+ and FracFocus...

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

    Secretary Ernest Moniz to Host SEAB meeting WHERE U.S. Department of Energy, Forrestal Building, 1000 Independence Ave, SW Washington, DC 20585 WHEN Friday, March 28, 2014 9:00...

  7. Microsoft Word - CM Hub Press Release 1-2-13 v8 final.docx

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

    recent investments, DOE's Advanced Research Projects Agency - Energy and Office of Energy Efficiency and Renewable Energy have supported more than 40 million in magnet, motor, and...

  8. Champions of Change: Veterans Advancing Clean Energy

    Broader source: Energy.gov [DOE]

    Yesterday, Secretary Moniz honored veterans advancing clean energy and climate security at a White House "Champions of Change" event.

  9. Carpe Diem: Install Insulated Roman Shades

    Broader source: Energy.gov [DOE]

    As I mentioned in yesterday's blog, I had insulated window quilts installed on most of my home's windows.

  10. Pressure and concentration dependences of the autoignition temperature for normal butane + air mixtures in a closed vessel

    SciTech Connect (OSTI)

    Chandraratna, M.R.; Griffiths, J.F. . School of Chemistry)

    1994-12-01

    The condition at which autoignition occurs in lean premixed n-butane + air mixtures over the composition range 0.2%--2.5% n-butane by volume (0.06 < [phi] < 0.66) were investigated experimentally. Total reactant pressure from 0.1 to 0.6 MPa (1--6 atm) were studied in a spherical, stainless-steel, closed vessel (0.5 dm[sup 3]). There is a critical transition from nonignition to ignition, at pressures above 0.1 MPa, as the mixture is enriched in the vicinity of 1% fuel vapor by volume. There is also a region of multiplicity, which exhibits three critical temperatures at a given composition. Chemical analyses show that partially oxygenated components,including many o-heterocyclic compounds, are important products of the lean combustion of butane at temperatures up to 800 K. The critical conditions for autoignition are discussed with regard to industrial ignition hazards, especially in the context of the autoignition temperature of alkanes given by ASTM or BS tests. The differences between the behavior of n-butane and the higher n-alkanes are explained. The experimental results are also used as a basis for testing a reduced kinetic model to represent the oxidation and autoignition of n-butane or other alkanes.

  11. Pulling the [open quotes]reverse trigger[close quotes]: A way to define local competition. [Competition among Public Utilities

    SciTech Connect (OSTI)

    Barnich, T.L.; Clausen, C.L.

    1994-06-15

    The communications convergence, brought about largely by the digitalization revolution, is now moving in a double helix through the horizontal telecommunications hierarchy. Competition for customer premises is aspiring upward toward the competition that is spiraling downward from the long-distance market. The competitive-access market is growing rapidly. MCI Metro, MCI/Nextel, and AT T/McCaw are poised to reach down into the traditionally [open quotes]local[close quotes] markets through wires and airwaves alike. Even the electric utilities are building persuasive business cases and regulatory arguments to transform their erstwhile internal communications systems, conduits, and rights-of-way into commercial networks offering cable TV, multimedia, Personal Communications Service (PCS), and alternative telephony services. The four principles in developing a regulatory standard should be: create standards that ease regulatory babysitting, recognize the relationship between the costs of regulatory compliance and building the networks, minimize transaction costs, and let the networks begin to grow now, without time and energy being spent on gaming the regulatory system.

  12. Layering, melting, and recrystallization of a close-packed micellar crystal under steady and large-amplitude oscillatory shear flows

    SciTech Connect (OSTI)

    Lpez-Barrn, Carlos R.; Wagner, Norman J.; Porcar, Lionel

    2015-05-15

    The rheology and three-dimensional microstructure of a concentrated viscoelastic solution of the triblock copolymer poly(ethylene oxide){sub 106}-poly(propylene oxide){sub 68}-poly(ethylene oxide){sub 106} (Pluronic F127) in the protic ionic liquid ethylammonium nitrate are measured by small angle neutron scattering (SANS) under flow in three orthogonal planes. This solution's shear-thinning viscosity is due to the formation of two-dimensional hexagonal close-packed (HCP) sliding layer structure. Shear-melting of the crystalline structure is observed without disruption of the self-assembled micelles, resulting in a change in flow properties. Spatially resolved measurements in the 12 plane reveal that both shear-melting and sliding are not uniform across the Couette gap. Melting and recrystallization of the HCP layers occur cyclically during a single large amplitude oscillatory shear (LAOS) cycle, in agreement with the stick-slip flow mechanism proposed by Hamley et al. [Phys. Rev. E 58, 76207628 (1998)]. Analysis of 3D structural Lissajous curves show that the cyclic melting and sliding are direct functions of the strain rate amplitude and show perfect correlation with the cyclic stress response during LAOS. Both viscosity and structural order obey the DelawareRutgers rule. Combining rheology with in situ spatiotemporally resolved SANS is demonstrated to elucidate the structural origins of the nonlinear rheology of complex fluids.

  13. ATGC: a database of orthologous genes from closely related prokaryotic genomes and a research platform for microevolution of prokaryotes

    SciTech Connect (OSTI)

    Novichkov, Pavel S.; Ratnere, Igor; Wolf, Yuri I.; Koonin, Eugene V.; Dubchak, Inna

    2009-07-23

    The database of Alignable Tight Genomic Clusters (ATGCs) consists of closely related genomes of archaea and bacteria, and is a resource for research into prokaryotic microevolution. Construction of a data set with appropriate characteristics is a major hurdle for this type of studies. With the current rate of genome sequencing, it is difficult to follow the progress of the field and to determine which of the available genome sets meet the requirements of a given research project, in particular, with respect to the minimum and maximum levels of similarity between the included genomes. Additionally, extraction of specific content, such as genomic alignments or families of orthologs, from a selected set of genomes is a complicated and time-consuming process. The database addresses these problems by providing an intuitive and efficient web interface to browse precomputed ATGCs, select appropriate ones and access ATGC-derived data such as multiple alignments of orthologous proteins, matrices of pairwise intergenomic distances based on genome-wide analysis of synonymous and nonsynonymous substitution rates and others. The ATGC database will be regularly updated following new releases of the NCBI RefSeq. The database is hosted by the Genomics Division at Lawrence Berkeley National laboratory and is publicly available at http://atgc.lbl.gov.

  14. A Brief Technical Critique of Economides and Ehlig-Economides 2010 "Sequestering Carbon Dioxide in a Closed Underground Volume"

    SciTech Connect (OSTI)

    Dooley, James J.; Davidson, Casie L.

    2010-04-07

    In their 2010 paper, Sequestering Carbon Dioxide in a Close Underground Volume, authors Ehlig-Economides and Economides assert that underground carbon dioxide sequestration via bulk CO2 injection is not feasible at any cost. The authors base this conclusion on a number of assumptions that the peer reviewed technical literature and decades of carbon dioxide (CO2) injection experience have proven invalid. In particular, the paper is built upon two flawed premises: first, that effective CO2 storage requires the presence of complete structural closure bounded on all sides by impermeable media, and second, that any other storage system is guaranteed to leak. These two assumptions inform every aspect of the authors analyses, and without them, the paper fails to prove its conclusions. The assertion put forward by Ehlig-Economides and Economides that anthropogenic CO2 cannot be stored in deep geologic formations is refuted by even the most cursory examination of the more than 25 years of accumulated commercial carbon dioxide capture and storage experience.

  15. Mass-loss evolution of close-in exoplanets: Evaporation of hot Jupiters and the effect on population

    SciTech Connect (OSTI)

    Kurokawa, H.; Nakamoto, T.

    2014-03-01

    During their evolution, short-period exoplanets may lose envelope mass through atmospheric escape owing to intense X-ray and extreme ultraviolet (XUV) radiation from their host stars. Roche-lobe overflow induced by orbital evolution or intense atmospheric escape can also contribute to mass loss. To study the effects of mass loss on inner planet populations, we calculate the evolution of hot Jupiters considering mass loss of their envelopes and thermal contraction. Mass loss is assumed to occur through XUV-driven atmospheric escape and the following Roche-lobe overflow. The runaway effect of mass loss results in a dichotomy of populations: hot Jupiters that retain their envelopes and super Earths whose envelopes are completely lost. Evolution primarily depends on the core masses of planets and only slightly on migration history. In hot Jupiters with small cores (? 10 Earth masses), runaway atmospheric escape followed by Roche-lobe overflow may create sub-Jupiter deserts, as observed in both mass and radius distributions of planetary populations. Comparing our results with formation scenarios and observed exoplanets populations, we propose that populations of closely orbiting exoplanets are formed by capturing planets at/inside the inner edges of protoplanetary disks and subsequent evaporation of sub-Jupiters.

  16. Property-close source separation of hazardous waste and waste electrical and electronic equipment - A Swedish case study

    SciTech Connect (OSTI)

    Bernstad, Anna; Cour Jansen, Jes la; Aspegren, Henrik

    2011-03-15

    Through an agreement with EEE producers, Swedish municipalities are responsible for collection of hazardous waste and waste electrical and electronic equipment (WEEE). In most Swedish municipalities, collection of these waste fractions is concentrated to waste recycling centres where households can source-separate and deposit hazardous waste and WEEE free of charge. However, the centres are often located on the outskirts of city centres and cars are needed in order to use the facilities in most cases. A full-scale experiment was performed in a residential area in southern Sweden to evaluate effects of a system for property-close source separation of hazardous waste and WEEE. After the system was introduced, results show a clear reduction in the amount of hazardous waste and WEEE disposed of incorrectly amongst residual waste or dry recyclables. The systems resulted in a source separation ratio of 70 wt% for hazardous waste and 76 wt% in the case of WEEE. Results show that households in the study area were willing to increase source separation of hazardous waste and WEEE when accessibility was improved and that this and similar collection systems can play an important role in building up increasingly sustainable solid waste management systems.

  17. Estimation of deformation and stiffness of fractures close to tunnels using data from single-hole hydraulic testing and grouting

    SciTech Connect (OSTI)

    Fransson, A.; Tsang, C.-F.; Rutqvist, J.; Gustafson, G.

    2010-05-01

    Sealing of tunnels in fractured rocks is commonly performed by pre- or post-excavation grouting. The grouting boreholes are frequently drilled close to the tunnel wall, an area where rock stresses can be low and fractures can more easily open up during grout pressurization. In this paper we suggest that data from hydraulic testing and grouting can be used to identify grout-induced fracture opening, to estimate fracture stiffness of such fractures, and to evaluate its impact on the grout performance. A conceptual model and a method are presented for estimating fracture stiffness. The method is demonstrated using grouting data from four pre-excavation grouting boreholes at a shallow tunnel (50 m) in Nygard, Sweden, and two post-excavation grouting boreholes at a deep tunnel (450 m) in Aespoe HRL, Sweden. The estimated stiffness of intersecting fractures for the boreholes at the shallow Nygard tunnel are low (2-5 GPa/m) and in agreement with literature data from field experiments at other fractured rock sites. Higher stiffness was obtained for the deeper tunnel boreholes at Aespoe which is reasonable considering that generally higher rock stresses are expected at greater depths. Our method of identifying and evaluating the properties and impact of deforming fractures might be most applicable when grouting takes place in boreholes adjacent to the tunnel wall, where local stresses might be low and where deforming (opening) fractures may take most of the grout.

  18. Subsets of Women With Close or Positive Margins After Breast-Conserving Surgery With High Local Recurrence Risk Despite Breast Plus Boost Radiotherapy

    SciTech Connect (OSTI)

    Lupe, Krystine; Truong, Pauline T.; Alexander, Cheryl; Lesperance, Mary; Speers, Caroline; Tyldesley, Scott

    2011-11-15

    Purpose: (1) To examine the effect of surgical margin status on local recurrence (LR) and survival following breast-conserving therapy; (2) To identify subsets with close or positive margins with high LR risk despite whole breast radiotherapy (RT) plus boost. Methods and Materials: Subjects were 2,264 women with pT1-3, any N, M0 invasive breast cancer, treated with breast-conserving surgery and whole breast {+-} boost RT. Five-year Kaplan-Meier (KM) LR, breast cancer-specific and overall survival (BCSS and OS) were compared between cohorts with negative (n = 1,980), close (n = 222), and positive (n = 62) margins. LR rates were analyzed according to clinicopathologic characteristics. Multivariable Cox regression modeling and matched analysis of close/positive margin cases and negative margin controls were performed. Results: Median follow-up was 5.2 years. Boost RT was used in 92% of patients with close or positive margins. Five-year KM LR rates in the negative, close and positive margin cohorts were 1.3%, 4.0%, and 5.2%, respectively (p = 0.001). BCSS and OS were similar in the three margin subgroups. In the close/positive margin cohort, LR rates were 10.2% with age <45 years, 11.8% with Grade III, 11.3% with lymphovascular invasion (LVI), and 26.3% with {>=}4 positive nodes. Corresponding rates in the negative margin cohort were 2.3%, 2.4%, 1.0%, and 2.4%, respectively. On Cox regression analysis of the entire cohort, close or positive margin, Grade III histology, {>=}4 positive nodes, and lack of systemic therapy were significantly associated with higher LR risk. When close/positive margin cases were matched to negative margin controls, the difference in 5-year LR remained significant (4.25% vs. 0.7%, p < 0.001). Conclusions: On univariable analysis, subsets with close or positive margins, in combination with age <45 years, Grade III, LVI, and {>=}4 positive nodes, have 5-year LR >10% despite whole breast plus boost RT. These patients should be considered for more definitive surgery.

  19. Orex based {open_quotes}point of generation{close_quotes} low-level radioactive waste reduction program

    SciTech Connect (OSTI)

    Haynes, B.

    1995-11-01

    Nuclear power facilities, both commercial and government operated, generate material called Dry Active Waste (DAW). DAW is a by-product of maintenance and operation of the power systems which contain radioactive materials. DAW can be any material contaminated with radioactive particles as long as it is not a fluid, typically: paper, cardboard, wood, plastics, cloth, and any other solid which is contaminated and determined to be dry. DAW is generated when any material is exposed to loose radioactive particles and subsequently becomes contaminated. In the United States, once a material is contaminated it must be treated as radioactive waste and disposed of in accordance with the requirements of Title 10 of the Code of Federal Regulations. Problems facing all commercial and non-commercial nuclear facilities are escalating costs of processing DAW and volumetric reduction of the DAW generated. Currently, approximately 85% of all DAW generated at a typical facility is comprised of anti-contamination clothing and protective barrier materials. A typical 800 megawatt power station will generate between 6,000 to 10,000 cubic feet of DAW annually. Facilities that generate low-level radioactive waste need to dramatically reduce their waste volumes. This curtailment is required for several reasons: (1). The number of radioactive waste repositories now accepting new waste is limited. (2). The current cost of burial at an operating dump site is significant. Costs can be as high as $4,000 for a single 55 gallon drum. (3). The cost of burial is constantly increasing. (4). Onsite storage of low-level radioactive waste is costly and results in a burial fee at plant decommissioning. In order to address this issue, the industry must look to the application of {open_quotes}point of generation{close_quotes} technologies.

  20. Debt swapping as a tool for economic and social stabilization in Russia's closed nuclear cities (briefing paper)

    SciTech Connect (OSTI)

    JL Fuller; KM Leek

    2000-03-08

    The next great issue on the Russian landscape will be management of its foreign debt. In the near future the United States will be called upon to lead an international program of debt restructuring to assist Russia in overcoming the burden of its debt trap. With debt service obligations equal to 50{percent} of 1999 revenues, Russia has virtually no chance of sustaining a program of economic recovery without debt relief (Hardt, 1999). With some form of debt restructuring a foregone conclusion, Russia, the United States, and world community have a vital stake in searching for creative ways to transform the inevitability of debt restructuring into something of value and constructive to Russia and the problems it faces. This was the rationale behind debt-for-nature swaps which emerged in the early 1980s in Latin American and Eastern Europe as a means of relieving developing nations of their crippling foreign debt. Debt-for-nature swaps served both domestic and international needs by converting a portion of foreign debt, often at steep discounts, into local currency that was then used to fund programs to preserve the environment. The debt swap mechanism provides the prospect of getting something of real value where nothing is expected. The Pacific Northwest National Laboratory (PNNL) has proposed to use the same model to synergistically capitalize defense threat reduction activities and environmental remediation within Russia's closed nuclear cities. Preventing the emigration of nuclear technology, expertise, and hardware from these cities to subnational groups and countries of proliferation concern is one of the world's foremost pressing problems. It is in the best national security interest of the United states to assist Russia in overcoming the legacy of the Cold War by helping to address the catastrophic environmental and public health effects of nuclear production that negatively impact economic stabilization.

  1. Formulation and experimental evaluation of closed-form control laws for the rapid maneuvering of reactor neutronic power

    SciTech Connect (OSTI)

    Bernard, J.A. . Nuclear Reactor Lab.)

    1989-09-01

    This report describes both the theoretical development and the experimental evaluation of a novel, robust methodology for the time-optimal adjustment of a reactor's neutronic power under conditions of closed-loop digital control. Central to the approach are the MIT-SNL Period-Generated Minimum Time Control Laws' which determine the rate at which reactivity should be changed in order to cause a reactor's neutronic power to conform to a specified trajectory. Using these laws, reactor power can be safely raised by five to seven orders of magnitude in a few seconds. The MIT-SNL laws were developed to facilitate rapid increases of neutronic power on spacecraft reactors operating in an SDI environment. However, these laws are generic and have other applications including the rapid recovery of research and test reactors subsequent to an unanticipated shutdown, power increases following the achievement of criticality on commercial reactors, power adjustments on commercial reactors so as to minimize thermal stress, and automated startups. The work reported here was performed by the Massachusetts Institute of Technology under contract to the Sandia National Laboratories. Support was also provided by the US Department of Energy's Division of University and Industry Programs. The work described in this report is significant in that a novel solution to the problem of time-optimal control of neutronic power was identified, in that a rigorous description of a reactor's dynamics was derived in that the rate of change of reactivity was recognized as the proper control signal, and in that extensive experimental trials were conducted of these newly developed concepts on actual nuclear reactors. 43 refs., 118 figs., 11 tabs.

  2. Titanium subhydride potassium perchlorate (TiH1.65/KClO4) burn rates from hybrid closed bomb-strand burner experiments.

    SciTech Connect (OSTI)

    Cooper, Marcia A.; Oliver, Michael S.

    2012-08-01

    A hybrid closed bomb-strand burner is used to measure the burning behavior of the titanium subhydride potassium perchlorate pyrotechnic with an equivalent hydrogen concentration of 1.65. This experimental facility allows for simultaneous measurement of the closed bomb pressure rise and pyrotechnic burn rate as detected by electrical break wires over a range of pressures. Strands were formed by pressing the pyrotechnic powders to bulk densities between 60% and 90% theoretical maximum density. The burn rate dependance on initial density and vessel pressure are measured. At all initial strand densities, the burn is observed to transition from conductive to convective burning within the strand. The measured vessel pressure history is further analyzed following the closed bomb analysis methods developed for solid propellants.

  3. The distribution of ion orbit loss fluxes of ions and energy from the plasma edge across the last closed flux surface into the scrape-off layer

    SciTech Connect (OSTI)

    Stacey, Weston M.; Schumann, Matthew T.

    2015-04-15

    A more detailed calculation strategy for the evaluation of ion orbit loss of thermalized plasma ions in the edge of tokamaks is presented. In both this and previous papers, the direct loss of particles from internal flux surfaces is calculated from the conservation of canonical angular momentum, energy, and magnetic moment. The previous result that almost all of the ion energy and particle fluxes crossing the last closed flux surface are in the form of ion orbit fluxes is confirmed, and the new result that the distributions of these fluxes crossing the last closed flux surface into the scrape-off layer are very strongly peaked about the outboard midplane is demonstrated. Previous results of a preferential loss of counter current particles leading to a co-current intrinsic rotation peaking just inside of the last closed flux surface are confirmed. Various physical details are discussed.

  4. Transonic airfoil and axial flow rotary machine

    DOE Patents [OSTI]

    Nagai, Naonori; Iwatani, Junji

    2015-09-01

    Sectional profiles close to a tip 124 and a part between a midportion 125 and a hub 123 are shifted to the upstream of an operating fluid flow in a sweep direction. Accordingly, an S shape is formed in which the tip 124 and the part between the midportion 125 and the hub 123 protrude. As a result, it is possible reduce various losses due to shook, waves, thereby forming a transonic airfoil having an excellent aerodynamic characteristic.

  5. Closing Keynote Presentation on the Genomics of Energy and the Environment (JGI Seventh Annual User Meeting 2012: Genomics of Energy and Environment)

    SciTech Connect (OSTI)

    Benner, Stephen [Foundation for Applied Molecular Evolution, Westheimer Institute of Science and Technology] [Foundation for Applied Molecular Evolution, Westheimer Institute of Science and Technology

    2012-03-22

    Steve Benner, a distinguished chemist at the Foundation for Applied Molecular Evolution, Westheimer Institute of Science and Technology, provides the closing keynote address for the JGI 7th Annual Users Meeting: Genomics of Energy & Environment Meeting on March 22, 2012 in Walnut Creek, California.

  6. Closing Keynote Presentation on the Genomics of Energy and the Environment (JGI Seventh Annual User Meeting 2012: Genomics of Energy and Environment)

    ScienceCinema (OSTI)

    Benner, Stephen [Foundation for Applied Molecular Evolution, Westheimer Institute of Science and Technology

    2013-01-22

    Steve Benner, a distinguished chemist at the Foundation for Applied Molecular Evolution, Westheimer Institute of Science and Technology, provides the closing keynote address for the JGI 7th Annual Users Meeting: Genomics of Energy & Environment Meeting on March 22, 2012 in Walnut Creek, California.

  7. THE POSSIBLE ROLE OF CORONAL STREAMERS AS MAGNETICALLY CLOSED STRUCTURES IN SHOCK-INDUCED ENERGETIC ELECTRONS AND METRIC TYPE II RADIO BURSTS

    SciTech Connect (OSTI)

    Kong, Xiangliang; Chen, Yao; Feng, Shiwei; Wang, Bing; Du, Guohui; Guo, Fan; Li, Gang

    2015-01-10

    Two solar typeII radio bursts, separated by ?24 hr in time, are examined together. Both events are associated with coronal mass ejections (CMEs) erupting from the same active region (NOAA 11176) beneath a well-observed helmet streamer. We find that the typeII emissions in both events ended once the CME/shock fronts passed the white-light streamer tip, which is presumably the magnetic cusp of the streamer. This leads us to conjecture that the closed magnetic arcades of the streamer may play a role in electron acceleration and typeII excitation at coronal shocks. To examine such a conjecture, we conduct a test-particle simulation for electron dynamics within a large-scale partially closed streamer magnetic configuration swept by a coronal shock. We find that the closed field lines play the role of an electron trap via which the electrons are sent back to the shock front multiple times and therefore accelerated to high energies by the shock. Electrons with an initial energy of 300 eV can be accelerated to tens of keV concentrating at the loop apex close to the shock front with a counter-streaming distribution at most locations. These electrons are energetic enough to excite Langmuir waves and radio bursts. Considering the fact that most solar eruptions originate from closed field regions, we suggest that the scenario may be important for the generation of more metric typeIIs. This study also provides an explanation of the general ending frequencies of metric typeIIs at or above 20-30 MHz and the disconnection issue between metric and interplanetary typeIIs.

  8. ISSUANCE 2015-08-19: Energy Conservation Standards for Commercial and Industrial Fans and Blowers: Availability of Provisional Analysis Tools and Notice of Data Availability, Close of Comment Period

    Broader source: Energy.gov [DOE]

    Energy Conservation Standards for Commercial and Industrial Fans and Blowers: Availability of Provisional Analysis Tools and Notice of Data Availability, Close of Comment Period

  9. {open_quotes}In-situ{close_quotes} stress-relieving of Ni/Cu alloy 400 tubed high pressure feedwater heaters

    SciTech Connect (OSTI)

    Rahoi, D.W.

    1995-12-01

    One of the known failure methods of Ni/Cu Alloy 400 is stress-corrosion cracking. When it can be determined with physical evidence that this is occurring, it may be possible to arrest or, at least slow down the failure methods by performing an {open_quotes}in situ{close_quotes} stress relief using plant steam. This paper does not recommend how to do it, but does reveal there is some hope the relief-anneal slows down the failure rate and increases the heater life, by reducing residual stress.

  10. Doping and electronic properties of GaAs grown by close-spaced vapor transport from powder sources for scalable III–V photovoltaics

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

    Ritenour, Andrew J.; Boucher, Jason W.; DeLancey, Robert; Greenaway, Ann L.; Aloni, Shaul; Boettcher, Shannon W.

    2014-09-01

    We report the use of a simple close-spaced vapor transport technique for the growth of high-quality epitaxial GaAs films using potentially inexpensive GaAs powders as precursors. The free carrier type and density (1016 to 1019 cm–3) of the films were adjusted by addition of Te or Zn powder to the GaAs source powder. We show using photoelectrochemical and electron beam-induced current analyses that the minority carrier diffusion lengths of the n- and p-GaAs films reached ~3 μm and ~8 μm, respectively. Hall mobilities approach those achieved for GaAs grown by metal–organic chemical vapor deposition, 1000–4200 cm2 V–1 s–1 for n-GaAsmore » and 50–240 cm V–1 s–1 for p-GaAs depending on doping level. We conclude that the electronic quality of GaAs grown by close-spaced vapor transport is similar to that of GaAs made using conventional techniques and is thus sufficient for high-performance photovoltaic applications.« less

  11. Doping and electronic properties of GaAs grown by close-spaced vapor transport from powder sources for scalable IIIV photovoltaics

    SciTech Connect (OSTI)

    Ritenour, Andrew J.; Boucher, Jason W.; DeLancey, Robert; Greenaway, Ann L.; Aloni, Shaul; Boettcher, Shannon W.

    2014-09-01

    We report the use of a simple close-spaced vapor transport technique for the growth of high-quality epitaxial GaAs films using potentially inexpensive GaAs powders as precursors. The free carrier type and density (1016 to 1019 cm3) of the films were adjusted by addition of Te or Zn powder to the GaAs source powder. We show using photoelectrochemical and electron beam-induced current analyses that the minority carrier diffusion lengths of the n- and p-GaAs films reached ~3 ?m and ~8 ?m, respectively. Hall mobilities approach those achieved for GaAs grown by metalorganic chemical vapor deposition, 10004200 cm2 V1 s1 for n-GaAs and 50240 cm V1 s1 for p-GaAs depending on doping level. We conclude that the electronic quality of GaAs grown by close-spaced vapor transport is similar to that of GaAs made using conventional techniques and is thus sufficient for high-performance photovoltaic applications.

  12. Closing Rocky Flats by 2006

    SciTech Connect (OSTI)

    Tuor, N. R.; Schubert, A. L.

    2002-02-26

    Safely accelerating the closure of Rocky Flats to 2006 is a goal shared by many: the State of Colorado, the communities surrounding the site, the U.S. Congress, the Department of Energy, Kaiser-Hill and its team of subcontractors, the site's employees, and taxpayers across the country. On June 30, 2000, Kaiser-Hill (KH) submitted to the Department of Energy (DOE), KH's plan to achieve closure of Rocky Flats by December 15, 2006, for a remaining cost of $3.96 billion (February 1, 2000, to December 15, 2006). The Closure Project Baseline (CPB) is the detailed project plan for accomplishing this ambitious closure goal. This paper will provide a status report on the progress being made toward the closure goal. This paper will: provide a summary of the closure contract completion criteria; give the current cost and schedule variance of the project and the status of key activities; detail important accomplishments of the past year; and discuss the challenges ahead.

  13. PSP Program close out documentation

    SciTech Connect (OSTI)

    Andringa, K.; Hootman, H.E.; Ferrara, A.S.; Smith, P.K.; Congdon, J.W.; Randolph, H.W.; Young, R.H.; Driggers, F.E.; Topp, S.V.

    1985-01-01

    In December 1982 DOE-SR directed SRL to study the feasibility and impact of a program to lower the U-236 content of the Highly Enriched Uranium (HEU) stockpile used as fuel for the SRP reactors. In response to this request SRL assessed four technologies, Atomic Vapor Laser Isotope Separation (AVLIS), Molecular Laser Isotope Separation (MLIS), Gas Centrifuge, and the Plasma Separation Process (PSP) for this purpose with the assistance of the Engineering Department. In April 1983 cost/benefit analyses for these processes, high spot cost estimates for production facilities, and process uncertainties were submitted to DOE-SR with a recommendation to proceed with the conceptual design and supporting development programs for a facility based on the use of the PSP process. The current program status for the PSP development program at SRL and the design and documentation of a production facility at SRP, referred to as the Fuel Improvement Demonstration Facility (FIDF), is described in this report.

  14. CHWM Close-Out Letter

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

    rates (Tier 1 rates). The CHWMs are established in section 4 of the Tiered Rates Methodology (TRM) and are based on the Tier 1 System Firm Critical Output (T1SFCO) and a...

  15. FINAL CLOSE-OUT REPORT

    SciTech Connect (OSTI)

    Mark A. Carl

    2004-08-03

    The Interstate Oil and Gas Compact Commission (IOGCC) engaged in numerous projects outlined under the scope of work discussed in the United States Department of Energy (DOE) grant number DE-FG26-01BC15336 awarded to the IOGCC. Numerous projects were completed that were extremely valuable to state oil and gas agencies as a result of work performed utilizing resources provided by the grant. There are numerous areas in which state agencies still need assistance. This additional assistance will need to be addressed under another grant because funding resources have been exhausted under The scope of work objectives for the eight projects covered under this grant is as follows: (1) Improve uniformity within state oil and gas data management efforts. (2) Conduct environmental compliance workshops and related educational projects on natural gas and oil exploration and production. (3) Improve regulatory efficiency through partnering opportunities provided by the Appalachian Illinois Basin Directors. (4) Promote the development and implementation of risk-based environmental regulation at the state level through an expertise-sharing program that brings stakeholders together to develop guidelines and models to meet regulatory challenges. (5) Support the IOGCC's regulatory streamlining efforts, including the identification and elimination of unnecessary duplications of effort between state and federal programs dealing with exploration and production on public lands, and identify the need to enhance and regionalize regulatory coordination and cooperation among the states. (6) Involve states and provinces of Canada that have offshore petroleum exploration and production in a regulatory sharing alliance to identify areas of concern that may be incorporated into standard practices for offshore environmental and regulatory compliance. (7) Coordinate efforts with the U.S. Environmental Protection Agency (EPA) to ensure that adequate information is available to the public regarding oil and gas exploration and production operations consistent with the intent of ''community right-to-know'' programs. (8) Demonstrate leadership in educating the public about the exploration, extraction and refining of petroleum; the economic value of domestic petroleum and its byproducts; conservation measures and their benefits; and other topics designed to assist the American public in gaining understanding of the importance of domestic resources and defining a true picture of those resources.

  16. Vulnerability to closing of Hormuz

    SciTech Connect (OSTI)

    Not Available

    1984-03-07

    Tankers carrying roughly 8-million barrels per day (mmb/d) of crude oil, or some 16% of the non-communist world's oil supply, pass through the Strait of Hormuz. Experts agree that just 3-mmb/d of that could be exported through alternate routes. If the war between Iran and Iraq should result in their completely halting each other's production, this relatively limited supply curtailment would reduce world oil production by over 3.4-mmb/d. Since the two have not caused such mutual disaster during four years of war, many observers believe there has been a deliberate avoidance of the jugular squeeze. Nevertheless, the two combatants appear capable not only of cutting off their oil production, but escalating fighting to the point where Gulf traffic would be impeded. Potential results from a prolonged Iran-Iraq crisis are viewed in three scenarios. Also included in this issue are brief summaries of: (1) Mexico's new energy plan, internationalism, and OPEC; (2) update on Argentina's energy resource developments; (3) Venezuela: belt tightening; (4) Western Hemisphere oil production declines; (5) (6) days of oil supply for Canada, USA, Japan, France, Italy, and UK; and (6) US Department of Defense fuel consumption. The Energy Detente fuel price/tax series and principal industrial fuel prices are included for March for countries of the Eastern Hemisphere.

  17. PSP Program close out documentation

    SciTech Connect (OSTI)

    Andringa, K.; Hootman, H.E.; Ferrara, A.S.; Smith, P.K.; Congdon, J.W.; Randolph, H.W.; Young, R.H.; Driggers, F.E.; Topp, S.V.

    1985-12-31

    In December 1982 DOE-SR directed SRL to study the feasibility and impact of a program to lower the U-236 content of the Highly Enriched Uranium (HEU) stockpile used as fuel for the SRP reactors. In response to this request SRL assessed four technologies, Atomic Vapor Laser Isotope Separation (AVLIS), Molecular Laser Isotope Separation (MLIS), Gas Centrifuge, and the Plasma Separation Process (PSP) for this purpose with the assistance of the Engineering Department. In April 1983 cost/benefit analyses for these processes, high spot cost estimates for production facilities, and process uncertainties were submitted to DOE-SR with a recommendation to proceed with the conceptual design and supporting development programs for a facility based on the use of the PSP process. The current program status for the PSP development program at SRL and the design and documentation of a production facility at SRP, referred to as the Fuel Improvement Demonstration Facility (FIDF), is described in this report.

  18. Progress and interim results of the INPRO joint study on assessment of INS based on closed nuclear fuel cycle with fast reactors

    SciTech Connect (OSTI)

    Usanov, Vladimir; Raj, Baldev; Vasile, Alfredo

    2007-07-01

    The purpose of the work is to review interim results of the Joint Study on assessment of an Innovative Nuclear System based on a Closed Nuclear Fuel Cycle with Fast Reactors (INS CNFC-FR). This study is a part of the IAEA international project for innovative reactors and fuel cycle technologies (INPRO). Now it is being implemented by Canada, China, France, India, Japan, Republic of Korea, Russia, and Ukraine. A report on results of implementation of the first phase of the Joint Study was presented to the INPRO Steering Committee meeting in December 2006. It was also agreed by the Joint Study participants to reveal these results to broader discussion at scientific conferences and meetings. The authors' interpretation of the Joint Study findings and issues is presented in the paper. (authors)

  19. Discrimination of Bacillus anthracis from closely related microorganisms by analysis of 16S and 23S rRNA with oligonucleotide microchips

    DOE Patents [OSTI]

    Bavykin, Sergei G.; Mirzabekov, Andrei D.

    2007-10-30

    The present invention is directed to a novel method of discriminating a highly infectious bacterium Bacillus anthracis from a group of closely related microorganisms. Sequence variations in the 16S and 23S rRNA of the B. cereus subgroup including B. anthracis are utilized to construct an array that can detect these sequence variations through selective hybridizations. The identification and analysis of these sequence variations enables positive discrimination of isolates of the B. cereus group that includes B. anthracis. Discrimination of single base differences in rRNA was achieved with a microchip during analysis of B. cereus group isolates from both single and in mixed probes, as well as identification of polymorphic sites. Successful use of a microchip to determine the appropriate subgroup classification using eight reference microorganisms from the B. cereus group as a study set, was demonstrated.

  20. Discrimination of Bacillus anthracis from closely related microorganisms by analysis of 16S and 23S rRNA with oligonucleotide microchips

    DOE Patents [OSTI]

    Bavykin, Sergei G.; Mirzabekova, legal representative, Natalia V.; Mirzabekov, deceased, Andrei D.

    2007-12-04

    The present invention relates to methods and compositions for using nucleotide sequence variations of 16S and 23S rRNA within the B. cereus group to discriminate a highly infectious bacterium B. anthracis from closely related microorganisms. Sequence variations in the 16S and 23S rRNA of the B. cereus subgroup including B. anthracis are utilized to construct an array that can detect these sequence variations through selective hybridizations and discriminate B. cereus group that includes B. anthracis. Discrimination of single base differences in rRNA was achieved with a microchip during analysis of B. cereus group isolates from both single and in mixed samples, as well as identification of polymorphic sites. Successful use of a microchip to determine the appropriate subgroup classification using eight reference microorganisms from the B. cereus group as a study set, was demonstrated.

  1. Price hub","Trade date","Delivery start date","Delivery

    U.S. Energy Information Administration (EIA) Indexed Site

    "application/vnd.ms-excel","application/vnd.ms-excel",55,53,54.29166667,12.54,24000,29,15 "ERCOT North 345KV Peak","application/vnd.ms-excel","application/vnd.ms-excel","application/vnd.ms-excel",41.5,40.5,41.0483871,-13.24,24800,29,15 "ERCOT North 345KV Peak","application/vnd.ms-excel","application/vnd.ms-excel","application/vnd.ms-excel",41.5,40.75,41.16666667,0.12,7200,9,11 "ERCOT North

  2. Price hub","Trade date","Delivery start date","Delivery

    U.S. Energy Information Administration (EIA) Indexed Site

    009,42009,40,39,39.5,10.58,1600,2,3 "ERCOT North 345KV Peak","application/vnd.ms-excel",42010,42010,29.5,28.5,29.07,-10.43,12000,15,12 "ERCOT North 345KV Peak","application/vnd.ms-excel",42012,42012,43,41.5,42.25,13.18,6400,8,9 "ERCOT North 345KV Peak","application/vnd.ms-excel",42013,42013,31,29.5,29.86,-12.39,17600,20,11 "ERCOT North 345KV Peak","application/vnd.ms-excel",42016,42016,28.75,27.25,27.7,-2.16,4000,5,7

  3. ON THE NATURE OF THE PROTOTYPE LUMINOUS BLUE VARIABLE AG CARINAE. II. WITNESSING A MASSIVE STAR EVOLVING CLOSE TO THE EDDINGTON AND BISTABILITY LIMITS

    SciTech Connect (OSTI)

    Groh, J. H.; Hillier, D. J.; Damineli, A.

    2011-07-20

    We show that the significantly different effective temperatures (T{sub eff}) achieved by the luminous blue variable AG Carinae during the consecutive visual minima of 1985-1990 (T{sub eff} {approx_equal} 22,800 K) and 2000-2001 (T{sub eff} {approx_equal} 17,000 K) place the star on different sides of the bistability limit, which occurs in line-driven stellar winds around T{sub eff} {approx} 21,000 K. Decisive evidence is provided by huge changes in the optical depth of the Lyman continuum in the inner wind as T{sub eff} changes during the S Dor cycle. These changes cause different Fe ionization structures in the inner wind. The bistability mechanism is also related to the different wind parameters during visual minima: the wind terminal velocity was 2-3 times higher and the mass-loss rate roughly two times smaller in 1985-1990 than in 2000-2003. We obtain a projected rotational velocity of 220 {+-} 50 km s{sup -1} during 1985-1990 which, combined with the high luminosity (L{sub *} = 1.5 x 10{sup 6} L{sub sun}), puts AG Car extremely close to the Eddington limit modified by rotation ({Omega}{Gamma} limit): for an inclination angle of 90{sup 0}, {Gamma}{sub {Omega}} {approx}> 1.0 for M{sub sun} {approx}< 60. Based on evolutionary models and mass budget, we obtain an initial mass of {approx}100 M{sub sun} and a current mass of {approx}60-70 M{sub sun} for AG Car. Therefore, AG Car is close to, if not at, the {Omega}{Gamma} limit during visual minimum. Assuming M = 70 M{sub sun}, we find that {Gamma}{sub {Omega}} decreases from 0.93 to 0.72 as AG Car expands toward visual maximum, suggesting that the star is not above the Eddington limit during maximum phases.

  4. Volume II solicitation package for solicitation no. 522887-5422 {open_quotes}site electrical replacements & substation{close_quotes} subproject: 69 KV substation

    SciTech Connect (OSTI)

    1991-05-03

    This solicitation is for the U.S. Department of Energy under Prime Contract No. DE-AC04-88-DP43495 with EG&G Mound Applied Technologies. Ohio Sales or Use taxes are not to be included in the proposal price. Applicable taxes due or owing to the State of Ohio will be paid by the buyer under Direct Payment Permit No. 98-002230. Refer to Form ML-2487, General Provisions, Article 24, {open_quotes}Federal, State & Local Taxes{close_quotes}. Sellers are advised that purchases of building and construction materials for incorporation into a structure or improvement to a real property which is accepted for ownership by the United States or one of its agencies are exempt from Ohio Sales and Use taxes. Unnecessarily elaborate brochures or other presentations beyond those sufficient to present a complete and effective response to this solicitation are not desired and may be construed as an indication of the seller`s lack of cost consciousness. Elaborate art work, expensive paper and binding, and expensive visual and other presentation aids are neither necessary nor wanted.

  5. An assessment of the attractiveness of material associated with thorium/uranium and uranium closed fuel cycles from a safeguards perspective

    SciTech Connect (OSTI)

    Bathke, Charles Gary; Wallace, Richard K; Hase, Kevin R; Sleaford, Brad W; Ebbinghaus, Bartley B; Collins, Brian W; Bradley, Keith S; Prichard, Andrew W; Smith, Brian W

    2010-01-01

    This paper reports the continued evaluation of the attractiveness of materials mixtures containing special nuclear materials (SNM) associated with various proposed nuclear fuel cycles. Specifically, this paper examines two closed fuel cycles. The first fuel cycle examined is a thorium fuel cycle in which a pressurized heavy water reactor (PHWR) is fueled with mixtures of plutonium/thorium and {sup 233}U/thorium. The used fuel is then reprocessed using the THOREX process and the actinides are recycled. The second fuel cycle examined consists of conventional light water reactors (LWR) whose fuel is reprocessed for actinides that are then fed to and recycled until consumed in fast-spectrum reactors: fast reactors and accelerator driven systems (ADS). As reprocessing of LWR fuel has already been examined, this paper will focus on the reprocessing of the scheme's fast-spectrum reactors' fuel. This study will indicate what is required to render these materials as having low utility for use in nuclear weapons. Nevertheless, the results of this paper suggest that all reprocessing products evaluated so far need to be rigorously safeguarded and provided high levels of physical protection. These studies were performed at the request of the United States Department of Energy (DOE). The methodology and key findings will be presented.

  6. Structure of a Specialized Acyl Carrier Protein Essential for Lipid A Biosynthesis with Very Long-chain Fatty Acids in Open and Closed Conformations

    SciTech Connect (OSTI)

    Ramelot, Theresa A.; Rossi, Paolo M.; Forouhar, Farhad; Lee, Hsiau-Wei; Yang, Yunhuang; Ni, Shuisong; Unser, Sarah; Lew, Scott; Seetharaman, Jayaraman; Xiao, Rong; Acton, Thomas; Everett, John K.; Prestegard, James H.; Hunt, John F.; Montelione, Gaetano; Kennedy, Michael A.

    2012-09-18

    The solution nuclear magnetic resonance (NMR) structures and backbone (15)N dynamics of the specialized acyl carrier protein (ACP), RpAcpXL, from Rhodopseudomonas palustris, in both the apo form and holo form modified by covalent attachment of 4'-phosphopantetheine at S37, are virtually identical, monomeric, and correspond to the closed conformation. The structures have an extra ?-helix compared to the archetypical ACP from Escherichia coli, which has four helices, resulting in a larger opening to the hydrophobic cavity. Chemical shift differences between apo- and holo-RpAcpXL indicated some differences in the hinge region between ?2 and ?3 and in the hydrophobic cavity environment, but corresponding changes in nuclear Overhauser effect cross-peak patterns were not detected. In contrast to the NMR structures, apo-RpAcpXL was observed in an open conformation in crystals that diffracted to 2.0 resolution, which resulted from movement of ?3. On the basis of the crystal structure, the predicted biological assembly is a homodimer. Although the possible biological significance of dimerization is unknown, there is potential that the resulting large shared hydrophobic cavity could accommodate the very long-chain fatty acid (28-30 carbons) that this specialized ACP is known to synthesize and transfer to lipid A. These structures are the first representatives of the AcpXL family and the first to indicate that dimerization may be important for the function of these specialized ACPs.

  7. UNDERSTANDING THE UNUSUAL X-RAY EMISSION PROPERTIES OF THE MASSIVE, CLOSE BINARY WR 20a: A HIGH ENERGY WINDOW INTO THE STELLAR WIND INITIATION REGION

    SciTech Connect (OSTI)

    Montes, Gabriela; Ramirez-Ruiz, Enrico; De Colle, Fabio; Strickler, Rachel

    2013-11-10

    The problem of explaining the X-ray emission properties of the massive, close binary WR 20a is discussed. Located near the cluster core of Westerlund 2, WR 20a is composed of two nearly identical Wolf-Rayet stars of 82 and 83 solar masses orbiting with a period of only 3.7 days. Although Chandra observations were taken during the secondary optical eclipse, the X-ray light curve shows no signs of a flux decrement. In fact, WR 20a appears slightly more X-ray luminous and softer during the optical eclipse, opposite to what has been observed in other binary systems. To aid in our interpretation of the data, we compare with the results of hydrodynamical simulations using the adaptive mesh refinement code Mezcal which includes radiative cooling and a radiative acceleration force term. It is shown that the X-ray emission can be successfully explained in models where the wind-wind collision interface in this system occurs while the outflowing material is still being accelerated. Consequently, WR 20a serves as a critical test-case for how radiatively driven stellar winds are initiated and how they interact. Our models not only procure a robust description of current Chandra data, which cover the orbital phases between 0.3 and 0.6, but also provide detailed predictions over the entire orbit.

  8. HTR-PROTEUS Pebble Bed Experimental Program Cores 1, 1A, 2, and 3: Hexagonal Close Packing with a 1:2 Moderator-to-Fuel Pebble Ratio

    SciTech Connect (OSTI)

    John D. Bess; Barbara H. Dolphin; James W. Sterbentz; Luka Snoj; Igor Lengar; Oliver Köberl

    2013-03-01

    In its deployment as a pebble bed reactor (PBR) critical facility from 1992 to 1996, the PROTEUS facility was designated as HTR-PROTEUS. This experimental program was performed as part of an International Atomic Energy Agency (IAEA) Coordinated Research Project (CRP) on the Validation of Safety Related Physics Calculations for Low Enriched HTGRs. Within this project, critical experiments were conducted for graphite moderated LEU systems to determine core reactivity, flux and power profiles, reaction-rate ratios, the worth of control rods, both in-core and reflector based, the worth of burnable poisons, kinetic parameters, and the effects of moisture ingress on these parameters. Four benchmark experiments were evaluated in this report: Cores 1, 1A, 2, and 3. These core configurations represent the hexagonal close packing (HCP) configurations of the HTR-PROTEUS experiment with a moderator-to-fuel pebble ratio of 1:2. Core 1 represents the only configuration utilizing ZEBRA control rods. Cores 1A, 2, and 3 use withdrawable, hollow, stainless steel control rods. Cores 1 and 1A are similar except for the use of different control rods; Core 1A also has one less layer of pebbles (21 layers instead of 22). Core 2 retains the first 16 layers of pebbles from Cores 1 and 1A and has 16 layers of moderator pebbles stacked above the fueled layers. Core 3 retains the first 17 layers of pebbles but has polyethylene rods inserted between pebbles to simulate water ingress. The additional partial pebble layer (layer 18) for Core 3 was not included as it was used for core operations and not the reported critical configuration. Cores 1, 1A, 2, and 3 were determined to be acceptable benchmark experiments.

  9. CNCC Craig Campus Geothermal Project: 82-well closed loop GHP well field to provide geothermal energy as a common utilitiy for a new community college campus

    SciTech Connect (OSTI)

    Chevron Energy Solutions; Matt Rush; Scott Shulda

    2011-01-03

    Colorado Northwestern Community College (CNCC) is working collaboratively with recipient vendor Chevron Energy Solutions, an energy services company (ESCO), to develop an innovative GHP project at the new CNCC Campus constructed in 2010/2011 in Craig, Colorado. The purpose of the CNCC Craig Campus Geothermal Program scope was to utilize an energy performance contracting approach to develop a geothermal system with a shared closed-loop field providing geothermal energy to each building's GHP mechanical system. Additional benefits to the project include promoting good jobs and clean energy while reducing operating costs for the college. The project has demonstrated that GHP technology is viable for new construction using the energy performance contracting model. The project also enabled the project team to evaluate several options to give the College a best value proposition for not only the initial design and construction costs but build high performance facilities that will save the College for many years to come. The design involved comparing the economic feasibility of GHP by comparing its cost to that of traditional HVAC systems via energy model, financial life cycle cost analysis of energy savings and capital cost, and finally by evaluating the compatibility of the mechanical design for GHP compared to traditional HVAC design. The project shows that GHP system design can be incorporated into the design of new commercial buildings if the design teams, architect, contractor, and owner coordinate carefully during the early phases of design. The public also benefits because the new CNCC campus is a center of education for the much of Northwestern Colorado, and students in K-12 programs (Science Spree 2010) through the CNCC two-year degree programs are already integrating geothermal and GHP technology. One of the greatest challenges met during this program was coordination of multiple engineering and development stakeholders. The leadership of Principle Investigator Pres. John Boyd of CNCC met this challenge by showing clear leadership in setting common goals and resolving conflicts early in the program.

  10. Close-coupled Catalytic Two-Stage Liquefaction (CTSL{trademark}) process bench studies. Final report, [October 1, 1988--July 31, 1993

    SciTech Connect (OSTI)

    Comolli, A.G.; Johanson, E.S.; Karolkiewicz, W.F.; Lee, L.K.; Popper, G.A.; Stalzer, R.H.; Smith, T.O.

    1993-06-01

    This is the final report of a four year and ten month contract starting on October 1, 1988 to July 31, 1993 with the US Department of Energy to study and improve Close-Coupled Catalytic Two-Stage Direct Liquefaction of coal by producing high yields of distillate with improved quality at lower capital and production costs in comparison to existing technologies. Laboratory, Bench and PDU scale studies on sub-bituminous and bituminous coals are summarized and referenced in this volume. Details are presented in the three topical reports of this contract; CTSL Process Bench Studies and PDU Scale-Up with Sub-Bituminous Coal-DE-88818-TOP-1, CTSL Process Bench Studies with Bituminous Coal-DE-88818-TOP-2, and CTSL Process Laboratory Scale Studies, Modelling and Technical Assessment-DE-88818-TOP-3. Results are summarized on experiments and studies covering several process configurations, cleaned coals, solid separation methods, additives and catalysts both dispersed and supported. Laboratory microautoclave scale experiments, economic analysis and modelling studies are also included along with the PDU-Scale-Up of the CTSL processing of sub-bituminous Black Thunder Mine Wyoming coal. During this DOE/HRI effort, high distillate yields were maintained at higher throughput rates while quality was markedly improved using on-line hydrotreating and cleaned coals. Solid separations options of filtration and delayed coking were evaluated on a Bench-Scale with filtration successfully scaled to a PDU demonstration. Directions for future direct coal liquefaction related work are outlined herein based on the results from this and previous programs.

  11. HTR-PROTEUS Pebble Bed Experimental Program Cores 1, 1A, 2, and 3: Hexagonal Close Packing with a 1:2 Moderator-to-Fuel Pebble Ratio

    SciTech Connect (OSTI)

    John D. Bess; Barbara H. Dolphin; James W. Sterbentz; Luka Snoj; Igor Lengar; Oliver Köberl

    2012-03-01

    In its deployment as a pebble bed reactor (PBR) critical facility from 1992 to 1996, the PROTEUS facility was designated as HTR-PROTEUS. This experimental program was performed as part of an International Atomic Energy Agency (IAEA) Coordinated Research Project (CRP) on the Validation of Safety Related Physics Calculations for Low Enriched HTGRs. Within this project, critical experiments were conducted for graphite moderated LEU systems to determine core reactivity, flux and power profiles, reaction-rate ratios, the worth of control rods, both in-core and reflector based, the worth of burnable poisons, kinetic parameters, and the effects of moisture ingress on these parameters. Four benchmark experiments were evaluated in this report: Cores 1, 1A, 2, and 3. These core configurations represent the hexagonal close packing (HCP) configurations of the HTR-PROTEUS experiment with a moderator-to-fuel pebble ratio of 1:2. Core 1 represents the only configuration utilizing ZEBRA control rods. Cores 1A, 2, and 3 use withdrawable, hollow, stainless steel control rods. Cores 1 and 1A are similar except for the use of different control rods; Core 1A also has one less layer of pebbles (21 layers instead of 22). Core 2 retains the first 16 layers of pebbles from Cores 1 and 1A and has 16 layers of moderator pebbles stacked above the fueled layers. Core 3 retains the first 17 layers of pebbles but has polyethylene rods inserted between pebbles to simulate water ingress. The additional partial pebble layer (layer 18) for Core 3 was not included as it was used for core operations and not the reported critical configuration. Cores 1, 1A, 2, and 3 were determined to be acceptable benchmark experiments.

  12. Chevy Volt Electrifies DOE Headquarters | Department of Energy

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

    Chevy Volt Electrifies DOE Headquarters Chevy Volt Electrifies DOE Headquarters December 9, 2010 - 7:05pm Addthis Dennis A. Smith Director, National Clean Cities Yesterday, ...

  13. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    Yesterday's price decreases likely resulted from moderating temperatures and an expected warming trend through the remainder of the week, following the blizzard and unusually low...

  14. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Yesterday's price decreases likely resulted from moderating temperatures and an expected warming trend through the remainder of the week, following the blizzard and unusually low...

  15. Another SunShot Success: GE to Make PrimeStar Solar Panels at...

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

    Yesterday, General Electric (GE) announced that it will build a new thin-film photovoltaic ... printing technology to make tiny high-concentrating photovoltaic (HCPV) cells. ...

  16. Smoothing the Flow of Renewable Solar Energy in California's...

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

    Yesterday, an almond grove in California's Central Valley hosted the opening of the world's largest iron-chromium redox flow battery. Originally pioneered by NASA, these flow ...

  17. llnl | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Yesterday Secretary of Energy Ernest Moniz hosted a ... flexibility in collecting data for stockpile stewardship ... The solar power system installed at Lawrence Livermore ...

  18. Lawrence Livermore National Laboratory | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    Yesterday Secretary of Energy Ernest Moniz hosted a ... flexibility in collecting data for stockpile stewardship ... The solar power system installed at Lawrence Livermore ...

  19. Secretary Moniz Joins President Obama in Visit to Cleveland High...

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

    Rob Roberts Rob Roberts Former Director of Digital Strategy Yesterday, Secretary Moniz ... Read a transcript of the President's remarks or watch the video above. Addthis Related ...

  20. Better Buildings Challenge, Atlanta Nears Halfway Mark in Meeting Citywide Goal of 20% Energy Savings

    Broader source: Energy.gov [DOE]

    The Energy Department yesterday recognized Atlanta for its progress and leadership in meeting a citywide goal to improve the energy performance of its buildings by 20% by 2020.

  1. National Clean Energy Business Plan Competition: Energy Internet...

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

    Energy Internet Wins ACC Clean Energy Challenge National Clean Energy Business Plan ... Garson Tech to Market Analyst, Commercialization Program (EERE) Yesterday, Energy ...

  2. News Archive | Department of Energy

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

    Yesterday, the Department of Energy's Office of Enforcement issued a subpoena to Richard Graham of Long Beach, California seeking water efficiency information and sales...

  3. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    20, when traders returned to colder-than-expected weather following the Martin Luther King, Jr. holiday weekend. The upward pressure on spot prices continued through yesterday's...

  4. Natural Gas Weekly Update, Printer-Friendly Version

    Gasoline and Diesel Fuel Update (EIA)

    20, when traders returned to colder-than-expected weather following the Martin Luther King, Jr. holiday weekend. The upward pressure on spot prices continued through yesterday's...

  5. Natural Gas Weekly Update, Printer-Friendly Version

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    compared with its settlement price a week ago, ending yesterday at 5.974 per MMBtu. The Energy Information Administration (EIA) reported that natural gas inventories in...

  6. Natural Gas Weekly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    compared with its settlement price a week ago, ending yesterday at 5.974 per MMBtu. The Energy Information Administration (EIA) reported that natural gas inventories in...

  7. ScienceGatewaysNUG-20091007.ppt

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

    2009 2 Science Gateways at NERSC * Web access methods to NERSC resources - Much is possible beyond yesterday's "ssh+pbs" computing - Today web interfaces expected for everything - ...

  8. Colorado Meeting | OpenEI Community

    Open Energy Info (EERE)

    Colorado Meeting Home > Blogs > Kyoung's blog Kyoung's picture Submitted by Kyoung(150) Contributor 7 March, 2013 - 10:24 1031 regulations Colorado Yesterday, we held a meeting...

  9. Natural Gas Weekly Update, Printer-Friendly Version

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Nevada) per MMBtu yesterday. In the Rockies, completion of a scheduled pipeline hydro-test ended significant transportation constraints in this region and prices responded to the...

  10. Natural Gas Weekly Update

    Gasoline and Diesel Fuel Update (EIA)

    Nevada) per MMBtu yesterday. In the Rockies, completion of a scheduled pipeline hydro-test ended significant transportation constraints in this region and prices responded to the...

  11. OpenEI Community - Colorado

    Open Energy Info (EERE)

    Colorado Meeting http:en.openei.orgcommunityblogcolorado-meeting

    Yesterday, we held a meeting with Colorado state agencies and geothemral developers to review the...

  12. OpenEI Community - 1031 regulations

    Open Energy Info (EERE)

    Colorado Meeting http:en.openei.orgcommunityblogcolorado-meeting

    Yesterday, we held a meeting with Colorado state agencies and geothemral developers to review the...

  13. A Question of Savings | Department of Energy

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

    Yesterday, Henry Kelly, the Acting Assistant Secretary for Energy Efficiency and Renewable ... Henry Kelly Washington The writer is acting assistant secretary for energy efficiency and ...

  14. Two NNSA Awards for LSO's Alice Williams | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    NNSA Blog Livermore Site Office Manager Alice Williams yesterday received the NNSA Gold Medal for distinguished service in the national security of the United States and the...

  15. International shipment of light weight radioisotopic heater units (LWRHU) using the USA/9516/B(U)F Mound 1 kW shipping package in support of the {open_quotes}Pluto Express{close_quotes} mission

    SciTech Connect (OSTI)

    Barklay, C.D.; Merten, C.W.

    1997-01-01

    Radioisotopes have provided heat that has been used to maintain specific operating environments within remote satellites and spacecraft. For the {open_quotes}Pluto Express{close_quotes} mission the {sup 238}PuO{sub 2} fueled light weight radioisotopic heater unit (LWRHU) will be used within the spacecraft. Since the current plan for the {open_quotes}Pluto Express{close_quotes} mission incorporates the use of a Russian launch platform for the spacecraft, the LWRHUs must be transported in an internationally certified shipping container. An internationally certified shipping package that is versatile enough to be reconfigured to transport the LWRHUs that will be required to support the {open_quotes}Pluto Express{close_quotes} mission is the Mound USA/9516/B(U)F. {copyright} {ital 1997 American Institute of Physics.}

  16. Grand Coulee & Hungry Horse SCADA Replacement

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

    Spare Transformers for Hub Wind Sites This project includes the installation of a spare, single phase transformer at four existing "hub" facilities. These "hub" facilities, as...

  17. Natural Gas Weekly Update, Printer-Friendly Version

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    drops of 0.35 per MMBtu at the end of the week. In the Rockies, the spot price at the Opal Hub in Wyoming declined 0.33 per MMBtu on Friday to close out the week at 2.12 per...

  18. Natural Gas Weekly Update

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

    drops of 0.35 per MMBtu at the end of the week. In the Rockies, the spot price at the Opal Hub in Wyoming declined 0.33 per MMBtu on Friday to close out the week at 2.12 per...

  19. Mathematical Analysis of High-Temperature Co-electrolysis of CO2 and O2 Production in a Closed-Loop Atmosphere Revitalization System

    SciTech Connect (OSTI)

    Michael G. McKellar; Manohar S. Sohal; Lila Mulloth; Bernadette Luna; Morgan B. Abney

    2010-03-01

    NASA has been evaluating two closed-loop atmosphere revitalization architectures based on Sabatier and Bosch carbon dioxide, CO2, reduction technologies. The CO2 and steam, H2O, co-electrolysis process is another option that NASA has investigated. Utilizing recent advances in the fuel cell technology sector, the Idaho National Laboratory, INL, has developed a CO2 and H2O co-electrolysis process to produce oxygen and syngas (carbon monoxide, CO and hydrogen, H2 mixture) for terrestrial (energy production) application. The technology is a combined process that involves steam electrolysis, CO2 electrolysis, and the reverse water gas shift (RWGS) reaction. A number of process models have been developed and analyzed to determine the theoretical power required to recover oxygen, O2, in each case. These models include the current Sabatier and Bosch technologies and combinations of those processes with high-temperature co-electrolysis. The cases of constant CO2 supply and constant O2 production were evaluated. In addition, a process model of the hydrogenation process with co-electrolysis was developed and compared. Sabatier processes require the least amount of energy input per kg of oxygen produced. If co-electrolysis replaces solid polymer electrolyte (SPE) electrolysis within the Sabatier architecture, the power requirement is reduced by over 10%, but only if heat recuperation is used. Sabatier processes, however, require external water to achieve the lower power results. Under conditions of constant incoming carbon dioxide flow, the Sabatier architectures require more power than the other architectures. The Bosch, Boudouard with co-electrolysis, and the hydrogenation with co-electrolysis processes require little or no external water. The Bosch and hydrogenation processes produce water within their reactors, which aids in reducing the power requirement for electrolysis. The Boudouard with co-electrolysis process has a higher electrolysis power requirement because carbon dioxide is split instead of water, which has a lower heat of formation. Hydrogenation with co-electrolysis offers the best overall power performance for two reasons: it requires no external water, and it produces its own water, which reduces the power requirement for co-electrolysis.

  20. Compositional modulated atomic layer stacking and uniaxial magnetocrystalline anisotropy of CoPt alloy sputtered films with close-packed plane orientation

    SciTech Connect (OSTI)

    Saito, Shin Nozawa, Naoki; Hinata, Shintaro; Takahashi, Migaku; Shibuya, Kazunari; Hoshino, Kazuya; Awaya, Satoru

    2015-05-07

    An atomic layer stacking structure in hexagonal close packed (hcp) Co{sub 100?x}Pt{sub x} alloy films with c-plane sheet texture was directly observed by a high-angle annular dark-field imaging scanning transmission electron microscopy. The analysis of sequential and/or compositional atomic layer stacking structure and uniaxial magnetocrystalline anisotropy (K{sub u}?=?K{sub u1}?+?K{sub u2}) revealed that (1) integrated intensity of the superlattice diffraction takes the maximum at x?=?20 at. % and shows broadening feature against x for the film fabricated under the substrate temperature (T{sub sub}) of 400?C. (2) Compositional separation structure in atomic layers is formed for the films fabricated under T{sub sub}?=?400?C. A sequential alternative stacking of atomic layers with different compositions is hardly formed in the film with x?=?50 at. %, whereas easily formed in the film with x?=?20 at. %. This peculiar atomic layer stacking structure consists of in-plane-disordered Pt-rich and Pt-poor layers, which is completely different from the so-called atomic site ordered structure. (3) A face centered cubic atomic layer stacking as faults appeared in the host hcp atomic layer stacking exists in accompanies with irregularities for the periodicity of the compositional modulation atomic layers. (4) K{sub u1} takes the maximum of 1.4??10{sup 7?}erg/cm{sup 3} at around x?=?20 at. %, whereas K{sub u2} takes the maximum of 0.7??10{sup 7?}erg/cm{sup 3} at around x?=?40 at. %, which results in the maximum of 1.8??10{sup 7?}erg/cm{sup 3} of K{sub u} at x?=?30 at. % and a shoulder in compositional dependence of K{sub u} in the range of x?=?3060 at. %. Not only compositional separation of atomic layers but also sequential alternative stacking of different compositional layers is quite important to improve essential uniaxial magnetocrystalline anisotropy.