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1

DOE Will Dispose of 34 Metric Tons of Plutonium by Turning it...  

National Nuclear Security Administration (NNSA)

Metric Tons of Plutonium by Turning it into Fuel for Civilian Reactors January 23, 2002 Washington, DC DOE Will Dispose of 34 Metric Tons of Plutonium by Turning it into Fuel for...

2

Department of Energy Releases New 'Billion-Ton' Study Highlighting  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

'Billion-Ton' Study 'Billion-Ton' Study Highlighting Opportunities for Growth in Bioenergy Resources Department of Energy Releases New 'Billion-Ton' Study Highlighting Opportunities for Growth in Bioenergy Resources August 10, 2011 - 3:41pm Addthis Washington, D.C. - The U.S. Department of Energy today released a report - 2011 U.S. Billion-Ton Update: Biomass Supply for a Bioenergy and Bioproducts Industry - detailing U.S. biomass feedstock potential nationwide. The report examines the nation's capacity to produce a billion dry tons of biomass resources annually for energy uses without impacting other vital U.S. farm and forest products, such as food, feed, and fiber crops. The study provides industry, policymakers, and the agricultural community with county-level data and includes analyses of

3

Moab Project Disposes 2 Million Tons of Uranium Mill Tailings with Recovery Act Funds  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The Moab Uranium Mill Tailings Remedial Action The Moab Uranium Mill Tailings Remedial Action Project reached its primary American Recovery and Reinvestment Act milestone ahead of schedule on Wednesday with the disposal of 2 million tons of uranium mill tailings. The project had originally planned to ship 2 million tons of tailings with Recovery Act funds. Now, Recovery Act workers are surpass- ing that goal. "Although shipping 2 million tons was the original Recovery Act goal, we are planning to exceed this goal by shipping about 300,000 tons more using savings resulting from efficiencies we've gained in our first 2 years of moving tailings," Moab Federal Project Director Donald Metzler said. The project is using $108 million from the Recovery Act to move the tailings from the banks of the Colorado River by rail to a permanent

4

Saving Tons at the Register  

SciTech Connect

Duct losses have a significant effect on the efficiency of delivering space cooling to U.S. homes. This effect is especially dramatic during peak demand periods where half of the cooling equipment's output can be wasted. Improving the efficiency of a duct system can save energy, but can also allow for downsizing of cooling equipment without sacrificing comfort conditions. Comfort, and hence occupant acceptability, is determined not only by steady-state temperatures, but by how long it takes to pull down the temperature during cooling start-up, such as when the occupants come home on a hot summer afternoon. Thus the delivered tons of cooling at the register during start-up conditions are critical to customer acceptance of equipment downsizing strategies. We have developed a simulation technique which takes into account such things as weather, heat-transfer (including hot attic conditions), airflow, duct tightness, duct location and insulation, and cooling equipment performance to determine the net tons of cooling delivered to occupied space. Capacity at the register has been developed as an improvement over equipment tonnage as a system sizing measure. We use this concept to demonstrate that improved ducts and better system installation is as important as equipment size, with analysis of pull-down capability as a proxy for comfort. The simulations indicate that an improved system installation including tight ducts can eliminate the need for almost a ton of rated equipment capacity in a typical new 2,000 square foot house in Sacramento, California. Our results have also shown that a good duct system can reduce capacity requirements and still provide equivalent cooling at start-up and at peak conditions.

Brown, Karl; Seigel, Jeff; Sherman, Max; Walker, Iain

1998-05-01T23:59:59.000Z

5

How do I convert between short tons and metric tons? - FAQ - U ...  

U.S. Energy Information Administration (EIA)

Other FAQs about Conversion & Equivalents. How do I convert between short tons and metric tons? How do I compare heating fuels?

6

DOE to Remove 200 Metric Tons of Highly Enriched Uranium from U.S. Nuclear  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

to Remove 200 Metric Tons of Highly Enriched Uranium from U.S. to Remove 200 Metric Tons of Highly Enriched Uranium from U.S. Nuclear Weapons Stockpile DOE to Remove 200 Metric Tons of Highly Enriched Uranium from U.S. Nuclear Weapons Stockpile November 7, 2005 - 12:38pm Addthis Will Be Redirected to Naval Reactors, Down-blended or Used for Space Programs WASHINGTON, DC - Secretary of Energy Samuel W. Bodman today announced that the Department of Energy's (DOE) National Nuclear Security Administration (NNSA) will remove up to 200 metric tons (MT) of Highly Enriched Uranium (HEU), in the coming decades, from further use as fissile material in U.S. nuclear weapons and prepare this material for other uses. Secretary Bodman made this announcement while addressing the 2005 Carnegie International Nonproliferation Conference in Washington, DC.

7

DOE-Sponsored Mississippi Project Hits 1-Million-Ton Milestone for Injected  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Mississippi Project Hits 1-Million-Ton Milestone for Mississippi Project Hits 1-Million-Ton Milestone for Injected CO2 DOE-Sponsored Mississippi Project Hits 1-Million-Ton Milestone for Injected CO2 November 5, 2009 - 12:00pm Addthis Washington, DC - A large-scale carbon dioxide (CO2) storage project in Mississippi has become the fifth worldwide to reach the important milestone of more than 1 million tons injected. As a result, it is helping to both further carbon capture and storage (CCS) as a mitigation strategy for global climate change and move forward G-8 recommendations for launching 20 projects of this type internationally by 2010. The project, sponsored by the U.S. Department of Energy's (DOE) Office of Fossil Energy (FE), is located at the Cranfield site in Southwestern Mississippi. It is led by the Southeast Regional Carbon Sequestration

8

Hanford Landfill Reaches 15 Million Tons Disposed - Waste Disposal...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Million Tons Disposed - Waste Disposal Mark Shows Success Cleaning Up River Corridor Hanford Landfill Reaches 15 Million Tons Disposed - Waste Disposal Mark Shows Success...

9

NETL: News Release - DOE Regional Partnerships Find Up To 3.5 Billion Tons  

NLE Websites -- All DOE Office Websites (Extended Search)

7, 2007 7, 2007 DOE Regional Partnerships Find More Than 3,500 Billion Tons of Possible CO2 Storage Capacity Atlas Details Stationary Sources and Geologic Reservoirs in U.S. and Canada WASHINGTON, DC - The Department of Energy's Regional Carbon Sequestration Partnerships have identified the powerplant and other stationary sources of more than 3.8 billion tons a year of the greenhouse gas CO2 in the United States and Canada and companion candidate storage capacity for more than 3,500 billion tons. The results are detailed in the new Carbon Sequestration Atlas of the United States and Canada which became available online today. MORE INFO Link to NETL's Carbon Sequestration Atlas web page Link to the Interactive Carbon Sequestration Atlas Learn more about DOE's Regional Carbon Sequestration Partnership program

10

NETL: News Release - DOE Partner Begins Injecting 50,000 Tons of Carbon  

NLE Websites -- All DOE Office Websites (Extended Search)

February 27, 2009 February 27, 2009 DOE Partner Begins Injecting 50,000 Tons of Carbon Dioxide in Michigan Basin Project Expected to Advance National Carbon Sequestration Program, Create Jobs Washington, DC-Building on an initial injection project of 10,000 metric tons of carbon dioxide (CO2) into a Michigan geologic formation, a U.S. Department of Energy (DOE) team of regional partners has begun injecting 50,000 additional tons into the formation, which is believed capable of storing hundreds of years worth of CO2, a greenhouse gas that contributes to climate change. MORE INFO Learn more about DOE's Regional Carbon Sequestration Partnership Program DOE's Midwest Regional Carbon Sequestration Partnership (MRCSP), led by Battelle of Columbus, Ohio, began injecting the CO2 this week in the

11

STEM-ing the Tide | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

STEM-ing the Tide STEM-ing the Tide STEM-ing the Tide September 29, 2010 - 4:29pm Addthis Ali Zaidi Special Assistant to the Secretary of Energy Yesterday, the MacArthur Foundation rolled out its latest class of "geniuses" - 23 Americans who stand out because of their creativity and enterprise. Each recipient of the honor (and the $500,000 prize) has made an extraordinary contribution. One of those recipients is Amir Abo-Shaeer, an engineer in the aerospace and telecommunications industries who decided 10 years ago to go back to high school - this time as a teacher. At his alma mater, Dos Pueblos High School (in Santa Barbara, California), Amir created "a school within a school" built around a hands-on curriculum that helps students learn by connecting the ideas of physics, engineering and mathematics through

12

DOE Partner Begins Injecting 50,000 Tons of CO2 in Michigan Basin |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Partner Begins Injecting 50,000 Tons of CO2 in Michigan Basin Partner Begins Injecting 50,000 Tons of CO2 in Michigan Basin DOE Partner Begins Injecting 50,000 Tons of CO2 in Michigan Basin February 27, 2009 - 12:00pm Addthis Washington, D.C. -- Building on an initial injection project of 10,000 metric tons of carbon dioxide (CO2) into a Michigan geologic formation, a U.S. Department of Energy (DOE) team of regional partners has begun injecting 50,000 additional tons into the formation, which is believed capable of storing hundreds of years worth of CO2, a greenhouse gas that contributes to climate change. DOE's Midwest Regional Carbon Sequestration Partnership (MRCSP), led by Battelle of Columbus, Ohio, began injecting the CO2 this week in the Michigan Basin near Gaylord, Mich., in a deep saline formation, the Silurian-age Bass Island dolomite. The MRCSP is one of seven partnerships

13

Personnel Change Notification ImagIng: GRSF/T  

E-Print Network (OSTI)

Personnel Change Notification OGS Form 3 ImagIng: GRSF/T Admit Year/Term: GS Web Front Desk: Office., reviewers, coordinators and chairs) Update: View all AIM Graduate Studies pages and enter decisions on GS02: Search for and view applicants; edit emails Connect: Add, search for and communicate with prospects

Hart, Gus

14

NETL: News Release - DOE-Sponsored Mississippi Project Hits 1-Million-Ton  

NLE Websites -- All DOE Office Websites (Extended Search)

5, 2009 5, 2009 DOE-Sponsored Mississippi Project Hits 1-Million-Ton Milestone for Injected CO2 Project Helping Further CCS Technology and Meeting G-8 Goals for Deployment Washington, D.C. -A large-scale carbon dioxide (CO2) storage project in Mississippi has become the fifth worldwide to reach the important milestone of more than 1 million tons injected. As a result, it is helping to both further carbon capture and storage (CCS) as a mitigation strategy for global climate change and move forward G-8 recommendations for launching 20 projects of this type internationally by 2010. MORE INFO Learn more about DOE's Regional Carbon Sequestration Partnership Program Link to SECARB web site The project, sponsored by the U.S. Department of Energy's (DOE) Office of Fossil Energy (FE), is located at the Cranfield site in Southwestern

15

Ton père et autre débris ; suivi de Entretien.  

E-Print Network (OSTI)

??Ce mémoire en création littéraire est constitué de deux parties. La première, Ton père et autres débris, est un récit composé de vingt-quatre tableaux divisés… (more)

Grenier, Jacques

2006-01-01T23:59:59.000Z

16

KCP relocates 18-ton machine | National Nuclear Security Administratio...  

NLE Websites -- All DOE Office Websites (Extended Search)

relocates 18-ton machine | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response...

17

Tons of Heavy Metals in Mill Creek Sediments Heather Freeman  

E-Print Network (OSTI)

with industries. Paper, woolen, flour, and cotton mills, starch factories, slaughterhouses, distilleriesTons of Heavy Metals in Mill Creek Sediments Heather Freeman 8/30/99 Geology Department Advisors: Dr. Kees DeJong Dr. Barry Manyard Dr. David Nash #12;Tons of heavy metals in Mill Creek sediments

Maynard, J. Barry

18

Hanford Landfill Reaches 15 Million Tons Disposed - Waste Disposal Mark  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Landfill Reaches 15 Million Tons Disposed - Waste Disposal Landfill Reaches 15 Million Tons Disposed - Waste Disposal Mark Shows Success Cleaning Up River Corridor Hanford Landfill Reaches 15 Million Tons Disposed - Waste Disposal Mark Shows Success Cleaning Up River Corridor July 9, 2013 - 12:00pm Addthis Media Contacts Cameron Hardy, DOE, (509) 376-5365 Cameron.Hardy@rl.doe.gov Mark McKenna, WCH, (509) 372-9032 media@wch-rcc.com RICHLAND, Wash. - The U.S. Department of Energy (DOE) and its contractors have disposed of 15 million tons of contaminated material at the Environmental Restoration Disposal Facility (ERDF) since the facility began operations in 1996. Removing contaminated material and providing for its safe disposal prevents contaminants from reaching the groundwater and the Columbia River. ERDF receives contaminated soil, demolition debris, and solid waste from

19

Department of Energy Releases New 'Billion-Ton' Study Highlighting...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

report supports the conclusion of the original 2005 Billion-Ton Study with added in-depth production and costs analyses and sustainability studies. The 2011 report uses more...

20

"Dark Web: Exploring and Min-ing the Dark Side of the Web"  

E-Print Network (OSTI)

Title: "Dark Web: Exploring and Min- ing the Dark Side of the Web" Speaker: Director, Prof will review the emerging research in Terrorism Informatics based on a web mining perspective. Recent progress in the internationally re- nowned Dark Web project will be reviewed, including: deep/dark web spider- ing (web sites

Michelsen, Claus

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

13:00 Begrung und Symposiumserffnung Prof. Dr.-Ing. Gerd Holbach  

E-Print Network (OSTI)

Windenergie-Gewinnung Dipl.-Ing. Jörgen Thiele Stiftung Offshore-Windenergie, Varel 14:45 Evolution der Meyer Werft GmbH, Papenburg 14:00 Energiewende als Chance und Heraus- forderung am Beispiel der Offshore challenges for ships and offshore structures (Englisch) Dr.-Ing. Bas Buchner, Maritime Research Institute

Berlin,Technische Universität

22

Washington, DC'  

Office of Legacy Management (LM)

of. Energy of. Energy Washington, DC' 26585 , The Honorable Gene Eriquez .~ City Hall I55 Deer Hill Avenue + Danbury/Connecticut 06180 .. -r. - Dear Mayor Eriquez: Secretary of Energy Hazel O!Leary has .announced a knew approach -to openness in. the Department of Energy (DOE) and its communications with the public. In support of th,is initiative, we are,pleased to forward the enclosed information, related to the former Sperry Products,'.Inc. site in your jurisdiction ,that performed,work for DOE or its predecessor agencies. Th,is informatipn is provided,for your information, use, and retenti~oh. DOE's Formeily Utilized Sites Remedial Action Program is responsible for. identification of sites used by'DOE's predecessor agencies, determining their current radiological condition and,

23

THERMAL MODELING ANALYSIS OF SRS 70 TON CASK  

SciTech Connect

The primary objective of this work was to perform the thermal calculations to evaluate the Material Test Reactor (MTR) fuel assembly temperatures inside the SRS 70-Ton Cask loaded with various bundle powers. MTR fuel consists of HFBR, MURR, MIT, and NIST. The MURR fuel was used to develop a bounding case since it is the fuel with the highest heat load. The results will be provided for technical input for the SRS 70 Ton Cask Onsite Safety Assessment. The calculation results show that for the SRS 70 ton dry cask with 2750 watts total heat source with a maximum bundle heat of 670 watts and 9 bundles of MURR bounding fuel, the highest fuel assembly temperatures are below about 263 C. Maximum top surface temperature of the plastic cover is about 112 C, much lower than its melting temperature 260 C. For 12 bundles of MURR bounding fuel with 2750 watts total heat and a maximum fuel bundle of 482 watts, the highest fuel assembly temperatures are bounded by the 9 bundle case. The component temperatures of the cask were calculated by a three-dimensional computational fluid dynamics approach. The modeling calculations were performed by considering daily-averaged solar heat flux.

Lee, S.; Jordan, J.; Hensel, S.

2011-03-08T23:59:59.000Z

24

Radio frequency dc-dc power conversion  

E-Print Network (OSTI)

THIS THESIS addresses the development of system architectures and circuit topologies for dc-dc power conversion at very high frequencies. The systems architectures that are developed are structured to overcome limitations ...

Rivas, Juan, 1976-

2007-01-01T23:59:59.000Z

25

Building Scale DC Microgrids  

NLE Websites -- All DOE Office Websites (Extended Search)

Scale DC Microgrids Title Building Scale DC Microgrids Publication Type Conference Proceedings LBNL Report Number LBNL-5729E Year of Publication 2012 Authors Marnay, Chris, Steven...

26

"Cook"ing at Y-12 for 70 years | Y-12 National Security Complex  

NLE Websites -- All DOE Office Websites (Extended Search)

"Cook"ing at Y-12 ... "Cook"ing at Y-12 ... "Cook"ing at Y-12 for 70 years Posted: December 5, 2013 - 4:48pm At a Nov. 14 visit to Y-12, National Nuclear Security Administration's Deputy Administrator for Defense Don Cook shared his outlook on the future and his thanks to employees for continuing their 70-year tradition of making America safer. "There are three things to remember," Cook told a meeting of NNSA Production Office and Y-12 employees. "We have an enduring mission. Y-12 plays a key role in it. And a nuclear deterrent remains the ultimate insurance policy for America." Cook also shared his thanks for preparing for the potential furlough in October because of the government shutdown and lack of appropriations. During what was the longest government shutdown to date, Cook said Y-12

27

Dilution Refrigeration of Multi-Ton Cold Masses  

E-Print Network (OSTI)

Dilution refrigeration is the only means to provide continuous cooling at temperatures below 250 mK. Future experiments featuring multi-ton cold masses require a new generation of dilution refrigeration systems, capable of providing a heat sink below 10 mK at cooling powers which exceed the performance of present systems considerably. This thesis presents some advances towards dilution refrigeration of multi-ton masses in this temperature range. A new method using numerical simulation to predict the cooling power of a dilution refrigerator of a given design has been developed in the framework of this thesis project. This method does not only allow to take into account the differences between an actual and an ideal continuous heat exchanger, but also to quantify the impact of an additional heat load on an intermediate section of the dilute stream. In addition, transient behavior can be simulated. The numerical model has been experimentally verified with a dilution refrigeration system which has been designed, ...

Wikus, P; CERN. Geneva

2007-01-01T23:59:59.000Z

28

DOE to Remove 200 Metric Tons of Highly Enriched Uranium from...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Other Agencies You are here Home DOE to Remove 200 Metric Tons of Highly Enriched Uranium from U.S. Nuclear Weapons Stockpile DOE to Remove 200 Metric Tons of Highly...

29

Acceptance test report for the Westinghouse 100 ton hydraulic trailer  

DOE Green Energy (OSTI)

The SY-101 Equipment Removal System 100 Ton Hydraulic Trailer was designed and built by KAMP Systems, Inc. Performance of the Acceptance Test Procedure at KAMP`s facility in Ontario, California (termed Phase 1 in this report) was interrupted by discrepancies noted with the main hydraulic cylinder. The main cylinder was removed and sent to REMCO for repair while the trailer was sent to Lampson`s facility in Pasco, Washington. The Acceptance Test Procedure was modified and performance resumed at Lampson (termed Phase 2 in this report) after receipt of the repaired cylinder. At the successful conclusion of Phase 2 testing the trailer was accepted as meeting all the performance criteria specified.

Barrett, R.A.

1995-03-06T23:59:59.000Z

30

TRANSPORTATION SYSTEMS are the build-ing blocks of modern society. Efficient and  

E-Print Network (OSTI)

TRANSPORTATION SYSTEMS are the build- ing blocks of modern society. Efficient and safe movement. How- ever, transportation systems by their very nature also affect the environment through operations, construction, and maintenance of transportation facilities, and through the travel behaviors they encourage

Wang, Yuhang

31

Water is used for many purposes, includ-ing growing crops, producing copper,  

E-Print Network (OSTI)

WATER USES Water is used for many purposes, includ- ing growing crops, producing copper, generating electricity, watering lawns, keeping clean, drinking and recreation. Bal- ancing the water budget comes down of the water budget. Reducing demand involves re- ducing how much water each person uses, lim- iting the number

32

Transportation system benefits of early deployment of a 75-ton multipurpose canister system  

SciTech Connect

In 1993 the US Civilian Radioactive Waste Management System (CRWMS) began developing two multipurpose canister (MPC) systems to provide a standardized method for interim storage and transportation of spent nuclear fuel (SNF) at commercial nuclear power plants. One is a 75-ton concept with an estimated payload of about 6 metric tons (t) of SNF, and the other is a 125-ton concept with an estimated payload of nearly 11 t of SNF. These payloads are two to three times the payloads of the largest currently certified US rail transport casks, the IF-300. Although is it recognized that a fully developed 125-ton MPC system is likely to provide a greater cost benefit, and radiation exposure benefit than the lower-capacity 75-ton MPC, the authors of this paper suggest that development and deployment of the 75-ton MPC prior to developing and deploying a 125-ton MPC is a desirable strategy. Reasons that support this are discussed in this paper.

Wankerl, M.W. [Oak Ridge National Lab., TN (United States); Schmid, S.P. [Science Applications International Corp., Oak Ridge, TN (United States)

1995-12-31T23:59:59.000Z

33

ing system  

E-Print Network (OSTI)

Oct 29, 2002 ... GAs are search algorithms based on the mechanics of natural selection and natural genetics. They combine the concept of survival of the.

34

Application guide for 25-ton solar system (unitized)  

DOE Green Energy (OSTI)

Arkla has developed a unitary solar system for air conditioning, heating and service hot water loads in commercial buildings of up to 25 tons cooling requirement. A semi-exploded view shows the basic elements of the Arkla system. These elements, listed below, are described in individual sections of the guide in sufficient detail to enable a competent designer to duplicate the Arkla unitary system in a site built system. The elements are: (1) collectors with summary procedure guide; (2) storage/receiver; (3) pumps/piping/valves; (4) controls; (5) chiller; (6) cooling tower; (7) gas boiler back-up; (8) central air handling unit; and (9) service and DHW. Any successful solar HVAC system requires careful analysis of the integration of the elements. This is particularly true due to the large year-round variation in the temperature of the solar HW available. Several items of this nature are discussed in the element sections. Consequently, the designer should review this entire guide before proceeding to individual elements particularly A and B. This guide presumes that the monthly (and design) hot water loads have been determined for the heating, cooling, and service-DHW water Btu requirements. In addition to these normal calculations, an hourly profile for a typical day each month should be made. The hourly profile is necessary to maximize the solar fraction for a given amount of collector surface in conjunction with the size of the storage system; that is, the coincidence, or lack of, sunshine to the instantaneous demands.

Not Available

1983-01-01T23:59:59.000Z

35

Characterization of Arsenic Contamination on Rust from Ton Containers  

Science Conference Proceedings (OSTI)

The speciation and spatial distribution of arsenic on rusted steel surfaces affects both measurement and removal approaches. The chemistry of arsenic residing in the rust of ton containers that held the chemical warfare agents bis(2-chloroethyl)sulfide (sulfur mustard) and 2-chlorovinyldichloroarsine (Lewisite) is of particular interest, because while the agents have been decontaminated, residual arsenic could pose a health or environmental risk. The chemistry and distribution of arsenic in rust samples was probed using imaging secondary ion mass spectrometry (SIMS), X-ray photoelectron spectroscopy (XPS), Auger electron spectroscopy, and scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDX). Arsenic in the +3 and or +5 oxidation state is homogeneously distributed at the very top-most layer of the rust samples, and is intimately associated with iron. Sputter depth profiling followed by SIMS and XPS shows As at a depth of several nm, in some cases in a reduced form. The SEM/EDX experiments show that As is present at a depth of several microns, but is inhomogeneously distributed; most locations contained oxidized As at concentrations of a few percent, however several locations showed very high As in a metallic form. These results indicate that the rust material must be removed if the steel containers are to be cleared of arsenic.

Gary S. Groenewold; Recep Avci; Robert V. Fox; Muhammedin Deliorman; Jayson Suo; Laura Kellerman

2013-01-01T23:59:59.000Z

36

DC source assemblies  

SciTech Connect

Embodiments of DC source assemblies of power inverter systems of the type suitable for deployment in a vehicle having an electrically grounded chassis are provided. An embodiment of a DC source assembly comprises a housing, a DC source disposed within the housing, a first terminal, and a second terminal. The DC source also comprises a first capacitor having a first electrode electrically coupled to the housing, and a second electrode electrically coupled to the first terminal. The DC source assembly further comprises a second capacitor having a first electrode electrically coupled to the housing, and a second electrode electrically coupled to the second terminal.

Campbell, Jeremy B; Newson, Steve

2013-02-26T23:59:59.000Z

37

Moab Project Disposes 2 Million Tons of Uranium Mill Tailings with Recovery  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Moab Project Disposes 2 Million Tons of Uranium Mill Tailings with Moab Project Disposes 2 Million Tons of Uranium Mill Tailings with Recovery Act Funds Moab Project Disposes 2 Million Tons of Uranium Mill Tailings with Recovery Act Funds The Moab Uranium Mill Tailings Remedial Action Project reached its primary American Recovery and Reinvestment Act milestone ahead of schedule on Wednesday with the disposal of 2 million tons of uranium mill tailings. The project had originally planned to ship 2 million tons of tailings with Recovery Act funds. Now, Recovery Act workers are surpassing that goal. Moab Project Disposes 2 Million Tons of Uranium Mill Tailings with Recovery Act Funds More Documents & Publications EIS-0355: Record of Decision EIS-0355: Draft Environmental Impact Statement EIS-0355: Final Environmental Impact Statement

38

Energy Cost Calculator for Commercial Heat Pumps (5.4 >=< 20 Tons) |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Heat Pumps (5.4 >=< 20 Tons) Heat Pumps (5.4 >=< 20 Tons) Energy Cost Calculator for Commercial Heat Pumps (5.4 >=< 20 Tons) October 8, 2013 - 2:22pm Addthis Vary equipment size, energy cost, hours of operation, and /or efficiency level. INPUT SECTION Input the following data (if any parameter is missing, calculator will set to default value). Defaults Project Type New Installation Replacement New Installation Condenser Type Air Source Water Source Air Source Existing Capacity * ton - Existing Cooling Efficiency * EER - Existing Heating Efficiency * COP - Existing IPLV Efficiency * IPLV - New Capacity ton 10 tons New Cooling Efficiency EER 10.1 EER New Heating Efficiency COP 3.2 COP New IPLV Efficiency IPLV 10.4 IPLV Energy Cost $ per kWh $0.06 per kWh

39

Table 7.1 Coal Overview, 1949-2011 (Million Short Tons)  

U.S. Energy Information Administration (EIA)

Table 7.1 Coal Overview, 1949-2011 (Million Short Tons) Year: Production 1: Waste Coal Supplied 2: Trade: Stock Change 4,5: Losses and

40

Building Scale DC Microgrids  

E-Print Network (OSTI)

a 10 kW vertical axis wind turbine, and Fig. 4 shows one ofgrid Fig. 3. Vertical axis wind turbine in the AIT DC µgrid

Marnay, Chris

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

AC-DC Difference  

Science Conference Proceedings (OSTI)

... The NIST ac-dc Difference Project provides US industry with the essential link between ac ... Facilities/Tools Used: ... NIST CNST Nanofabrication facility. ...

2012-08-09T23:59:59.000Z

42

U.S. Removes Nine Metric Tons of Plutonium From Nuclear Weapons Stockpile |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

U.S. Removes Nine Metric Tons of Plutonium From Nuclear Weapons U.S. Removes Nine Metric Tons of Plutonium From Nuclear Weapons Stockpile U.S. Removes Nine Metric Tons of Plutonium From Nuclear Weapons Stockpile September 17, 2007 - 2:41pm Addthis Declaration Reinforces U.S. Commitment to Nonproliferation VIENNA, AUSTRIA - Secretary of Energy Samuel W. Bodman today announced that the Department of Energy's National Nuclear Security Administration (NNSA) will remove nine metric tons of plutonium from further use as fissile material in U.S. nuclear weapons, signifying the Bush Administration's ongoing commitment to nonproliferation. Nine metric tons of plutonium is enough material to make over 1,000 nuclear weapons. The Secretary made today's announcement while speaking before the International Atomic Energy Agency's annual general conference.

43

6 Million Tons of Mill Tailings Removed From DOE Moab Project Site |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

6 Million Tons of Mill Tailings Removed From DOE Moab Project Site 6 Million Tons of Mill Tailings Removed From DOE Moab Project Site 6 Million Tons of Mill Tailings Removed From DOE Moab Project Site June 18, 2013 - 12:00pm Addthis Media Contacts Donald Metzler, Moab Federal Project Director (970) 257-2115 Wendee Ryan, S&K Aerospace Public Affairs Manager (970) 257-2145 (Grand Junction, CO) - Today, the Department of Energy (DOE) announced that 6 million tons of uranium mill tailings have been shipped from Moab, Utah, under the Uranium Mill Tailings Remedial Action Project to an engineered disposal cell near Crescent Junction, Utah. The shipments mark continued progress toward relocating the 16-million-ton uranium mill tailings pile away from the Colorado River. "The federal budget continues to be stretched thin, and I am proud this

44

6 Million Tons of Mill Tailings Removed From DOE Moab Project Site |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

6 Million Tons of Mill Tailings Removed From DOE Moab Project Site 6 Million Tons of Mill Tailings Removed From DOE Moab Project Site 6 Million Tons of Mill Tailings Removed From DOE Moab Project Site June 18, 2013 - 12:00pm Addthis Media Contacts Donald Metzler, Moab Federal Project Director (970) 257-2115 Wendee Ryan, S&K Aerospace Public Affairs Manager (970) 257-2145 (Grand Junction, CO) - Today, the Department of Energy (DOE) announced that 6 million tons of uranium mill tailings have been shipped from Moab, Utah, under the Uranium Mill Tailings Remedial Action Project to an engineered disposal cell near Crescent Junction, Utah. The shipments mark continued progress toward relocating the 16-million-ton uranium mill tailings pile away from the Colorado River. "The federal budget continues to be stretched thin, and I am proud this

45

Moab Mill Tailings Removal Project Reaches 5 Million Tons Disposed: Project  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Moab Mill Tailings Removal Project Reaches 5 Million Tons Disposed: Moab Mill Tailings Removal Project Reaches 5 Million Tons Disposed: Project Accomplishes Milestone While Doing it Safely Moab Mill Tailings Removal Project Reaches 5 Million Tons Disposed: Project Accomplishes Milestone While Doing it Safely February 27, 2012 - 12:00pm Addthis Media Contacts Donald Metzler, Moab Federal Project Director, (970) 257-2115 Wendee Ryan, S&K Aerospace Public Affairs Manager, (970) 257-2145 Grand Junction, CO- The U.S. Department of Energy (DOE) reached another milestone today for the Uranium Mill Tailings Remedial Action Project, having shipped 5 million tons of tailings from the massive pile located in Moab, Utah, to the engineered disposal cell near Crescent Junction, Utah. The pile comprised an estimated 16 million tons total when DOE's Remedial

46

Disposal Facility Reaches 15-Million-Ton Milestone | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Disposal Facility Reaches 15-Million-Ton Milestone Disposal Facility Reaches 15-Million-Ton Milestone Disposal Facility Reaches 15-Million-Ton Milestone July 30, 2013 - 12:00pm Addthis Matt McCormick, manager of the Richland Operations Office, commends a large group of Hanford workers for the 15-million-ton milestone at a public event at the Environmental Restoration Disposal Facility. Matt McCormick, manager of the Richland Operations Office, commends a large group of Hanford workers for the 15-million-ton milestone at a public event at the Environmental Restoration Disposal Facility. RICHLAND, Wash. - EM's Environmental Restoration Disposal Facility (ERDF) - a massive landfill for low-level radioactive and hazardous waste at the Hanford site - has achieved a major cleanup milestone. Since beginning operations in 1996, workers supporting the Richland

47

U.S. Removes Nine Metric Tons of Plutonium From Nuclear Weapons Stockpile |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Removes Nine Metric Tons of Plutonium From Nuclear Weapons Removes Nine Metric Tons of Plutonium From Nuclear Weapons Stockpile U.S. Removes Nine Metric Tons of Plutonium From Nuclear Weapons Stockpile September 17, 2007 - 2:41pm Addthis Declaration Reinforces U.S. Commitment to Nonproliferation VIENNA, AUSTRIA - Secretary of Energy Samuel W. Bodman today announced that the Department of Energy's National Nuclear Security Administration (NNSA) will remove nine metric tons of plutonium from further use as fissile material in U.S. nuclear weapons, signifying the Bush Administration's ongoing commitment to nonproliferation. Nine metric tons of plutonium is enough material to make over 1,000 nuclear weapons. The Secretary made today's announcement while speaking before the International Atomic Energy Agency's annual general conference.

48

Billion-Ton Update: Home-Grown Energy Resources Across the Nation |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Billion-Ton Update: Home-Grown Energy Resources Across the Nation Billion-Ton Update: Home-Grown Energy Resources Across the Nation Billion-Ton Update: Home-Grown Energy Resources Across the Nation August 11, 2011 - 3:59pm Addthis Total potential biomass resources by county in the contiguous U.S. from the baseline scenario of the Update (Figure 6.4, page 159) | Map from Billion-Ton Update Total potential biomass resources by county in the contiguous U.S. from the baseline scenario of the Update (Figure 6.4, page 159) | Map from Billion-Ton Update Paul Bryan Biomass Program Manager, Office of Energy Efficiency & Renewable Energy What does this mean for me? With continued developments in biorefinery capacity and technology, the feedstock resources identified in the report could produce about 85 billion gallons of biofuels -- enough to replace approximately 30 percent

49

Spring'ing' Forward Into the Finals . . . Of A Competition Like...  

Office of Science (SC) Website

& Testimony Recovery Act Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 03.11.13...

50

'March'ing Into The Finals . . . Of A Competition Like No Other  

Office of Science (SC) Website

& Testimony Recovery Act Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 03.04.13...

51

Building Scale DC Microgrids  

E-Print Network (OSTI)

an increasingly familiar generation source and elec- tronicssource of ancillary services either to buffer local variable generation,sources, e.g. photovoltaic modules (PV), from other direct current (DC) generation,

Marnay, Chris

2013-01-01T23:59:59.000Z

52

Moab Marks 6-Million-Ton Cleanup Milestone | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Moab Marks 6-Million-Ton Cleanup Milestone Moab Marks 6-Million-Ton Cleanup Milestone Moab Marks 6-Million-Ton Cleanup Milestone June 20, 2013 - 12:00pm Addthis At Tuesday's Grand County Council meeting in Utah, Moab Federal Project Director Donald Metzler, center, moves a piece from a plaque representing Moab’s uranium mill tailings pile to a plaque representing the disposal cell in recognition of the site achieving a milestone by shipping 6 million tons of the tailings. Grand County Council Chair Gene Ciarus is on the left and Grand County Council Vice Chair Lynn Jackson is on the right. At Tuesday's Grand County Council meeting in Utah, Moab Federal Project Director Donald Metzler, center, moves a piece from a plaque representing Moab's uranium mill tailings pile to a plaque representing the disposal

53

A Concept for a Scalable 2 kTon Liquid Argon TPC Detector for Astroparticle Physics  

E-Print Network (OSTI)

-module configuration and to its large liquid nitrogen consumption (~1 liquid m3 /hour), the 300-ton geometry purity (UHP) liquefied noble gas and for coping with the engineering and safety issues related

McDonald, Kirk

54

Adaptive decentralised control of parallel DC-DC converter systems  

Science Conference Proceedings (OSTI)

In this paper, we develop a robust controller for parallel DC-DC converter system by combining the adaptive backstepping technique and decentralised control. The voltages and currents of all converters are coupled with each other. The parallel DC-DC ...

Jing Zhou

2012-08-01T23:59:59.000Z

55

NNSA's Global Threat Reduction Initiative Removes More Than One Ton of  

NLE Websites -- All DOE Office Websites (Extended Search)

Removes More Than One Ton of Removes More Than One Ton of Food | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > NNSA's Global Threat Reduction Initiative Removes More ... NNSA's Global Threat Reduction Initiative Removes More Than One Ton of Food Posted By Office of Public Affairs Contributing to DOE/NNSA's efforts to support the Office of Personnel

56

Dc arc weld starter  

DOE Patents (OSTI)

A system for starting an arc for welding uses three DC power supplies, a high voltage supply for initiating the arc, an intermediate voltage supply for sustaining the arc, and a low voltage welding supply directly connected across the gap after the high voltage supply is disconnected.

Campiotti, R.H.; Hopwood, J.E.

1989-02-17T23:59:59.000Z

57

DC arc weld starter  

SciTech Connect

A system for starting an arc for welding uses three DC power supplies, a high voltage supply for initiating the arc, an intermediate voltage supply for sustaining the arc, and a low voltage welding supply directly connected across the gap after the high voltage supply is disconnected.

Campiotti, Richard H. (Tracy, CA); Hopwood, James E. (Oakley, CA)

1990-01-01T23:59:59.000Z

58

A dc transformer  

Science Conference Proceedings (OSTI)

Although conventional transformers are ac, a device that may be termed a dc transformer has been constructed by using superconductors. To provide an understanding of how such a transformer would operate, some of the properties of type I and type II superconductors ...

I. Giaever

1966-09-01T23:59:59.000Z

59

The Arabidopsis TRM1TON1 Interaction Reveals a Recruitment Network Common to Plant Cortical  

E-Print Network (OSTI)

microtubules via its C-terminal TON1 interaction motif. Interestingly, three motifs of TRMs are found in CAP350, a human centrosomal protein interacting with FOP, and the C-terminal M2 motif of CAP350 is responsible., 2006). CAP350 has also been proposed to specifically stabilize Golgi-associated microtubules

Paris-Sud XI, Université de

60

Photo of the Week: An Incredible Journey -- Transporting a 50-ton Magnet |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

An Incredible Journey -- Transporting a 50-ton An Incredible Journey -- Transporting a 50-ton Magnet Photo of the Week: An Incredible Journey -- Transporting a 50-ton Magnet July 11, 2013 - 4:38pm Addthis The Muon g-2 (pronounced gee minus two) is an experiment that will use the Fermilab accelerator complex to create an intense beam of muons -- a type of subatomic particle -- traveling at the speed of light. The experiment is picking up after a previous muon experiment at Brookhaven National Laboratory, which concluded in 2001. In this photo, the massive electromagnet is beginning its 3,200-mile journey from the woods of Long Island to the plains near Chicago, where scientists at Fermilab will refill its storage ring with muons created at Fermilab’s Antiproton Source. The 50-foot-diameter ring is made of steel, aluminum and superconducting wire. It will travel down the East Coast, around the tip of Florida, and up the Mississippi River to Fermilab in Illinois. Transporting the 50-ton device by truck requires meticulous precision -- just a tilt or a twist of a few degrees could leave the internal wiring irreparably damaged.

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

2 million tons per year: A performing biofuels supply chain for  

E-Print Network (OSTI)

1 2 million tons per year: A performing biofuels supply chain for EU aviation NOTE It is understood that in the context of this text the term "biofuel(s) use in aviation" categorically implies "sustainably produced biofuel(s)" according to the EU legislation. June 2011 #12;2 This technical paper was drafted

62

Washington. DC,20585  

Office of Legacy Management (LM)

Washington. DC,20585 Washington. DC,20585 MAY' i 1995 .- The Honorable Freeman R. Bosley, Jr. ' r City Hall 1200 Narket Street St. Louis, Missouri 63103 Dear Mayor Bosley: ,'~ ,. : !' Secretary of Energy Hazel O'Leary'has announced a new approach to'openness'in " the Department of,Energy"(DOE) and its communications with the pu~blic. In 'support of this initiative, we are pleased to forward the enclosed information rel,ated to the former Petrolite Corp. site in your jurisdiction that,performed, work for DDE or,i.ts predecessor agencies. your information, use, and retention. This information is provided for DDE's Formerly Utilized Sites Remedial Action Program is responsible for identification of sites used by DDE's predecessor agencies, determining their

63

I ' Washington, DC'  

Office of Legacy Management (LM)

' Washington, DC' ' Washington, DC' 20585 The.Honorable Don Trotter, 102' Public Square Clarksville, Tennessee '37040 '_ _' ' Dear Mayor Trotter: '. Secretary of Energy Hazel .O'Leary has announced a new the Department of Energy (DOE) and its communications support of this initiative, we are pleased to forward related to the Clarksville Foundry.& Machine Co. site approach to openness in with the publ,ic'. In " the~enclosed~information in your'jurisdiction that performed work for DOE or its predecessor'agencies. This information. is provided, for.your information, use, and retention. remedial action conservative' set of technical investigations to assure environment. If'you have any questions, please feel free~to call DrI W. Alexander Uilliams 301-427-1719 of my staff.

64

U.S. Billion-Ton Update: Biomass Supply for a Bioenergy and Bioproducts Industry  

SciTech Connect

The report, Biomass as Feedstock for a Bioenergy and Bioproducts Industry: The Technical Feasibility of a Billion-Ton Annual Supply (generally referred to as the Billion-Ton Study or 2005 BTS), was an estimate of 'potential' biomass based on numerous assumptions about current and future inventory, production capacity, availability, and technology. The analysis was made to determine if conterminous U.S. agriculture and forestry resources had the capability to produce at least one billion dry tons of sustainable biomass annually to displace 30% or more of the nation's present petroleum consumption. An effort was made to use conservative estimates to assure confidence in having sufficient supply to reach the goal. The potential biomass was projected to be reasonably available around mid-century when large-scale biorefineries are likely to exist. The study emphasized primary sources of forest- and agriculture-derived biomass, such as logging residues, fuel treatment thinnings, crop residues, and perennially grown grasses and trees. These primary sources have the greatest potential to supply large, reliable, and sustainable quantities of biomass. While the primary sources were emphasized, estimates of secondary residue and tertiary waste resources of biomass were also provided. The original Billion-Ton Resource Assessment, published in 2005, was divided into two parts-forest-derived resources and agriculture-derived resources. The forest resources included residues produced during the harvesting of merchantable timber, forest residues, and small-diameter trees that could become available through initiatives to reduce fire hazards and improve forest health; forest residues from land conversion; fuelwood extracted from forests; residues generated at primary forest product processing mills; and urban wood wastes, municipal solid wastes (MSW), and construction and demolition (C&D) debris. For these forest resources, only residues, wastes, and small-diameter trees were considered. The 2005 BTS did not attempt to include any wood that would normally be used for higher-valued products (e.g., pulpwood) that could potentially shift to bioenergy applications. This would have required a separate economic analysis, which was not part of the 2005 BTS. The agriculture resources in the 2005 BTS included grains used for biofuels production; crop residues derived primarily from corn, wheat, and small grains; and animal manures and other residues. The cropland resource analysis also included estimates of perennial energy crops (e.g., herbaceous grasses, such as switchgrass, woody crops like hybrid poplar, as well as willow grown under short rotations and more intensive management than conventional plantation forests). Woody crops were included under cropland resources because it was assumed that they would be grown on a combination of cropland and pasture rather than forestland. In the 2005 BTS, current resource availability was estimated at 278 million dry tons annually from forestlands and slightly more than 194 million dry tons annually from croplands. These annual quantities increase to about 370 million dry tons from forestlands and to nearly 1 billion dry tons from croplands under scenario conditions of high-yield growth and large-scale plantings of perennial grasses and woody tree crops. This high-yield scenario reflects a mid-century timescale ({approx}2040-2050). Under conditions of lower-yield growth, estimated resource potential was projected to be about 320 and 580 million dry tons for forest and cropland biomass, respectively. As noted earlier, the 2005 BTS emphasized the primary resources (agricultural and forestry residues and energy crops) because they represent nearly 80% of the long-term resource potential. Since publication of the BTS in April 2005, there have been some rather dramatic changes in energy markets. In fact, just prior to the actual publication of the BTS, world oil prices started to increase as a result of a burgeoning worldwide demand and concerns about long-term supplies. By the end of the summer, oil pri

Downing, Mark [ORNL; Eaton, Laurence M [ORNL; Graham, Robin Lambert [ORNL; Langholtz, Matthew H [ORNL; Perlack, Robert D [ORNL; Turhollow Jr, Anthony F [ORNL; Stokes, Bryce [Navarro Research & Engineering; Brandt, Craig C [ORNL

2011-08-01T23:59:59.000Z

65

Auxiliary resonant DC tank converter  

SciTech Connect

An auxiliary resonant dc tank (ARDCT) converter is provided for achieving soft-switching in a power converter. An ARDCT circuit is coupled directly across a dc bus to the inverter to generate a resonant dc bus voltage, including upper and lower resonant capacitors connected in series as a resonant leg, first and second dc tank capacitors connected in series as a tank leg, and an auxiliary resonant circuit comprising a series combination of a resonant inductor and a pair of auxiliary switching devices. The ARDCT circuit further includes first clamping means for holding the resonant dc bus voltage to the dc tank voltage of the tank leg, and second clamping means for clamping the resonant dc bus voltage to zero during a resonant period. The ARDCT circuit resonantly brings the dc bus voltage to zero in order to provide a zero-voltage switching opportunity for the inverter, then quickly rebounds the dc bus voltage back to the dc tank voltage after the inverter changes state. The auxiliary switching devices are turned on and off under zero-current conditions. The ARDCT circuit only absorbs ripples of the inverter dc bus current, thus having less current stress. In addition, since the ARDCT circuit is coupled in parallel with the dc power supply and the inverter for merely assisting soft-switching of the inverter without participating in real dc power transmission and power conversion, malfunction and failure of the tank circuit will not affect the functional operation of the inverter; thus a highly reliable converter system is expected.

Peng, Fang Z. (Knoxville, TN)

2000-01-01T23:59:59.000Z

66

Low-voltage-swing Monolithic DC-DC Conversion  

E-Print Network (OSTI)

Abstract—A low-voltage-swing MOSFET gate drive technique is proposed in this paper for enhancing the efficiency characteristics of high-frequency-switching dc–dc converters. The parasitic power dissipation of a dc–dc converter is reduced by lowering the voltage swing of the power transistor gate drivers. A comprehensive circuit model of the parasitic impedances of a monolithic buck converter is presented. Closed-form expressions for the total power dissipation of a low-swing buck converter are proposed. The effect of reducing the MOSFET gate voltage swings is explored with the proposed circuit model. A range of design parameters is evaluated, permitting the development of a design space for full integration of active and passive devices of a low-swing buck converter on the same die, for a target CMOS technology. The optimum gate voltage swing of a power MOSFET that maximizes efficiency is lower than a standard full voltage swing. An efficiency of 88 % at a switching frequency of 102 MHz is achieved for a voltage conversion from 1.8 to 0.9 V with a low-swing dc–dc converter based on a 0.18- m CMOS technology. The power dissipation of a low-swing dc–dc converter is reduced by 27.9 % as compared to a standard full-swing dc–dc converter. Index Terms—Buck converter, dc–dc converters, enhanced efficiency, high frequency, low power, low swing, monolithic integration, on-chip voltage conversion, parameter optimization, parasitic impedances, power dissipation modeling, power supply, reduced energy dissipation, reduced voltage swing, switching voltage regulator. I.

Volkan Kursun; Siva G. Narendra; Vivek K. De; Eby G. Friedman

2004-01-01T23:59:59.000Z

67

U.S. Manufacturers Save $1 Billion, 11 Million Tons of CO2 through Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

You are here You are here Home » U.S. Manufacturers Save $1 Billion, 11 Million Tons of CO2 through Energy Efficiency Investments U.S. Manufacturers Save $1 Billion, 11 Million Tons of CO2 through Energy Efficiency Investments September 25, 2013 - 12:00pm Addthis News Media Contact (202) 586-4940 WASHINGTON - Underscoring the Obama Administration's efforts to double energy productivity by 2030 and help businesses save money and energy, the Energy Department today recognized more than 120 manufacturers that are making smart investments to save on energy costs, cut greenhouse gas emissions and improve their bottom lines. Through the Department's Better Buildings, Better Plants Program (Better Plants), over 1,750 plants across the United States have saved about $1 billion in energy costs and

68

Cleanup of 77 Waste Sites Meets Two TPA Milestones: 1.2 million tons of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Cleanup of 77 Waste Sites Meets Two TPA Milestones: 1.2 million Cleanup of 77 Waste Sites Meets Two TPA Milestones: 1.2 million tons of soil and debris disposed of from D, H Reactor Areas Cleanup of 77 Waste Sites Meets Two TPA Milestones: 1.2 million tons of soil and debris disposed of from D, H Reactor Areas January 11, 2012 - 12:00pm Addthis Media Contacts Cameron Hardy, DOE (509) 376-5365, Cameron.Hardy@rl.doe.gov Dieter Bohrmann, Ecology (509) 372-7954, Dieter.Bohrmann@ecy.wa.gov Emerald Laija, EPA (509) 376-4919, Laija.Emerald@epamail.epa.gov RICHLAND, WASH. - Department of Energy (DOE) contractor, Washington Closure Hanford, recently cleaned up 77 waste sites at Hanford to meet two Tri-Party Agreement (TPA) milestones before the end of 2011. The waste sites were located in the D and H Reactor Areas at Hanford along

69

Great Plains Coal Gasification Project will make 17. 5 tons/day of methanol  

SciTech Connect

The Great Plains Coal Gasification Project will make 17.5 tons/day of methanol in addition to 125 million cu ft/day of pipeline-quality substitute natural gas (SNG), making the facility the first commercial producer of methanol-from-coal in the United States, according to the consortium building the $1.5 billion facility in Beulah, North Dakota. As originally conceived, the plant would have used 17 tons/day of purchased methanol to clean the raw-gas product stream of impurities, primarily sulfur. But based on the cost of transporting methanol to the plant site and storing it for use, the consortium decided it was more economical to produce its own methanol from lignite. The construction started in July 1980, and the facility is to come on stream in 1984.

Not Available

1980-11-17T23:59:59.000Z

70

Improved DC Gun Insulator  

SciTech Connect

Many user facilities such as synchrotron light sources and free electron lasers require accelerating structures that support electric fields of 10-100 MV/m, especially at the start of the accelerator chain where ceramic insulators are used for very high gradient DC guns. These insulators are difficult to manufacture, require long commissioning times, and have poor reliability, in part because energetic electrons bury themselves in the ceramic, creating a buildup of charge and causing eventual puncture. A novel ceramic manufacturing process is proposed. It will incorporate bulk resistivity in the region where it is needed to bleed off accumulated charge caused by highly energetic electrons. This process will be optimized to provide an appropriate gradient in bulk resistivity from the vacuum side to the air side of the HV standoff ceramic cylinder. A computer model will be used to determine the optimum cylinder dimensions and required resistivity gradient for an example RF gun application. A ceramic material example with resistivity gradient appropriate for use as a DC gun insulator will be fabricated by glazing using doping compounds and tested.

M.L. Neubauer, K.B. Beard, R. Sah, C. Hernandez-Garcia, G. Neil

2009-05-01T23:59:59.000Z

71

Departmentaf Energy Washington, DC  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Departmentaf Departmentaf Energy Washington, DC 20585 MAR 4 1998 MEMORANDUM FOR: James H. Chafin, AL Robert Fisher, CH Steven Hamel, OR William Daubenspeck, LL James Hanley, SAN Robert Southworth, RL Harold Dixon, SR \ Lisa Jarr, FETC"/"',,,-' ( ~ ( ) ( I C{ \'"~V FROM: Paul A. Gottlieb'<,. ~ ' \ Assistant General Counsel . for Technology Transfer / and Intellectual Property SUBJECT: U.S. Competitiveness Provision. Except for the cases discussed further below, attached is the U.S. Competitiveness provision which you should begin providing as our initial negotiating position to inventors/contractors requesting identified and, advance patent waivers. Of course, it is not· expected that every inventor/contractor will agree to the exact language in the provision, in which case modifications to the provision can be made. In those cases where substantial changes are contemplated,

72

Washington, DC,20585  

Office of Legacy Management (LM)

>/gGq ' >/gGq ' ,, ' .. Department of Edgy Washington, DC,20585 ,I ' , APR 0 4 1995 The Honorable Patrick Ungaro 26 S. Phelps Street Youngstown, Ohio 44503 .' Dear );layor.Ungaro: Secretary of'Energy Hazel O'Leary has announced a new approach to openness in the Oepartment of Energy (DOE) and its coannunications with the public. In support of this initiative, we are pleased to forward the,enclosed information related to the former Ajax-Hagnethermic C,orp. site in your jurisdiction that performed work for DOE's predecessoragencies. This information is~provided for your information, use, and retention. DOE's Formerly Utilized Sites Remedial Action Program is responsible for identificationof sites used by DOE's predecessor agencies, determining their current radiological condition and, where it has authority, performing-

73

D.C.  

NLE Websites -- All DOE Office Websites (Extended Search)

Future scientists advance to national Future scientists advance to national level April 3, 2012 Science Bowl winners represent NM in Washington, D.C. A team from Los Alamos bested 39 other teams from around New Mexico in the 10- hour New Mexico Regional Science Bowl, held recently at Albuquerque Academy. The team went on to represent New Mexico in the 22nd Annual Department of Energy (DOE) National Science Bowl. In addition to their travel expenses, the team also won $5,000 for their school. The team consists of students, Alexander Wang, Micha Ben-Naim, Scott Carlsten, Lorenzo Venneri and Kevin Gao, and Coach, Paolo Venneri. - 2 - Albuquerque Academy took second place and La Cueva High School in Albuquerque placed third in the "Jeopardy!"-style event. During the competition, students are asked

74

Triple voltage dc-to-dc converter and method  

DOE Patents (OSTI)

A circuit and method of providing three dc voltage buses and transforming power between a low voltage dc converter and a high voltage dc converter, by coupling a primary dc power circuit and a secondary dc power circuit through an isolation transformer; providing the gating signals to power semiconductor switches in the primary and secondary circuits to control power flow between the primary and secondary circuits and by controlling a phase shift between the primary voltage and the secondary voltage. The primary dc power circuit and the secondary dc power circuit each further comprising at least two tank capacitances arranged in series as a tank leg, at least two resonant switching devices arranged in series with each other and arranged in parallel with the tank leg, and at least one voltage source arranged in parallel with the tank leg and the resonant switching devices, said resonant switching devices including power semiconductor switches that are operated by gating signals. Additional embodiments having a center-tapped battery on the low voltage side and a plurality of modules on both the low voltage side and the high voltage side are also disclosed for the purpose of reducing ripple current and for reducing the size of the components.

Su, Gui-Jia (Knoxville, TN)

2008-08-05T23:59:59.000Z

75

Bi-Directional DC-DC Converter for PHEV Applications  

DOE Green Energy (OSTI)

Plug-In Hybrid Electric Vehicles (PHEV) require high power density energy storage system (ESS) for hybrid operation and high energy density ESS for Electric Vehicle (EV) mode range. However, ESS technologies to maximize power density and energy density simultaneously are not commercially feasible. The use of bi-directional DC-DC converter allows use of multiple energy storage, and the flexible DC-link voltages can enhance the system efficiency and reduce component sizing. This will improve fuel consumption, increase the EV mode range, reduce the total weight, reduce battery initial and life cycle cost, and provide flexibility in system design.

Abas Goodarzi

2011-01-31T23:59:59.000Z

76

DC's Marble ceiling : urban height and its regulation in Washington, DC; Urban height and its regulation in Washington, DC.  

E-Print Network (OSTI)

??Washington, DC has a unique urban form that is the result of a century-old law. Through the narrow lens of DC's height limit, I survey… (more)

Trueblood, Andrew Tyson

2009-01-01T23:59:59.000Z

77

Washington DC | OpenEI Community  

Open Energy Info (EERE)

Washington DC Home Linked Open Data Workshop in Washington, D.C. Description: A group organizing the LOD workshop in Washington, D.C. in fall 2012 A follow-up event to the...

78

Catalog of DC Appliances and Power Systems  

E-Print Network (OSTI)

Brushless DC permanent magnet motor EV electric vehicle Btubrushless DC permanent magnet motors [11]. We note that themotor 2 Same VSD = variable speed drive BDCPM = brushless DC permanent magnet

Garbesi, Karina

2012-01-01T23:59:59.000Z

79

LANNDD -A line of liquid argon TPC detectors scalable in mass from 200 Tons to 100 KTons  

E-Print Network (OSTI)

and to its large liquid nitrogen consumption (~1 liquid m3/hour), the 300-ton geometry and construction required for a detector based on an ultra high purity (UHP) liquefied noble gas and for coping

McDonald, Kirk

80

Taking out 1 billion tons of CO2: The magic of China's 11th Five-Year Plan?  

E-Print Network (OSTI)

the Energy Conservation Center, Japan The World Bank, 2001.Energy Efficiency In Buildings. Washington DC:World Bank The

Lin, Jiang

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Definition: DC Resistivity Survey (Schlumberger Array) | Open...  

Open Energy Info (EERE)

Schlumberger Array) Jump to: navigation, search Dictionary.png DC Resistivity Survey (Schlumberger Array) The Schlumberger array is a type of electrode configuration for a DC...

82

Catalog of DC Appliances and Power Systems  

E-Print Network (OSTI)

by end use and appliance type. 217. Functions embodied in appliances and DC technologies thatthat both the standard appliance and the DC-internal

Garbesi, Karina

2012-01-01T23:59:59.000Z

83

Questions and Answers - How many atoms would it take to create a ton?  

NLE Websites -- All DOE Office Websites (Extended Search)

there in the world? there in the world? Previous Question (How many atoms are there in the world?) Questions and Answers Main Index Next Question (Could you please explain density?) Could you please explain density? How many atoms would it take to create a ton? There's a lot more to this question than first appears. There are many types of atoms and each of them has its own mass, so the answer varies depending on which atom you are talking about. Since even a tiny bit of matter has many atoms, it has become customary to use the unit "mole" to signify a standard number of atoms, namely, it is Avogadro's number which (almost) equals 6*1023, or 600,000 billion billon. If you look up the periodic table of elements, one of the numbers usually listed is the atomic mass which is the mass (in grams) of one mole of those atoms. Let's use

84

Dynamic performance testing of prototype 3 ton air-cooled carrier absorption chiller  

SciTech Connect

The performance of a prototype 3 ton cooling capacity air-cooled lithium bromide/water absorption chiller was tested using an absorption chiller test facility which was modified to expand its testing capabilities to include air-cooled chillers in addition to water-cooled chillers. Temperatures of the three externally supplied fluid loops: hot water, chilled water, and cooling air, were varied in order to determine the effects this would have on the two principal measures of chiller performance: cooling capacity and thermal coefficient of performance (COP). A number of interrelated factors were identified as contributing to less than expected performance. For comparison, experimental correlations of other investigators for this and other similar absorption chillers are presented. These have been plotted as both contour and three-dimensional performance maps in order to more clearly show the functional dependence of the chiller performance on the fluid loop temperatures.

Borst, R.R.; Wood, B.D.

1985-05-01T23:59:59.000Z

85

Background studies for a ton-scale argon dark matter detector (ArDM)  

E-Print Network (OSTI)

The ArDM project aims at operating a large noble liquid detector to search for direct evidence of Weakly Interacting Massive Particles (WIMP) as Dark Matter in the universe. Background sources relevant to ton-scale liquid and gaseous argon detectors, such as neutrons from detector components, muon-induced neutrons and neutrons caused by radioactivity of rock, as well as the internal $^{39}Ar$ background, are studied with simulations. These background radiations are addressed with the design of an appropriate shielding as well as with different background rejection potentialities. Among them the project relies on event topology recognition, event localization, density ionization discrimination and pulse shape discrimination. Background rates, energy spectra, characteristics of the background-induced nuclear recoils in liquid argon, as well as the shielding performance and rejection performance of the detector are described.

L. Kaufmann; A. Rubbia

2006-12-05T23:59:59.000Z

86

Catalog of DC Appliances and Power Systems  

SciTech Connect

This document catalogs the characteristics of current and potential future DC products and power systems.

Garbesi, Karina; Vossos, Vagelis; Shen, Hongxia

2010-10-13T23:59:59.000Z

87

Light-weight DC to very high voltage DC converter  

DOE Patents (OSTI)

A DC-DC converter capable of generating outputs of 100 KV without a transformer comprises a silicon opening switch (SOS) diode connected to allow a charging current from a capacitor to flow into an inductor. When a specified amount of charge has flowed through the SOS diode, it opens up abruptly; and the consequential collapsing field of the inductor causes a voltage and current reversal that is steered into a load capacitor by an output diode. A switch across the series combination of the capacitor, inductor, and SOS diode closes to periodically reset the SOS diode by inducing a forward-biased current.

Druce, Robert L. (Union City, CA); Kirbie, Hugh C. (Dublin, CA); Newton, Mark A. (Livermore, CA)

1998-01-01T23:59:59.000Z

88

Light-weight DC to very high voltage DC converter  

DOE Patents (OSTI)

A DC-DC converter capable of generating outputs of 100 KV without a transformer comprises a silicon opening switch (SOS) diode connected to allow a charging current from a capacitor to flow into an inductor. When a specified amount of charge has flowed through the SOS diode, it opens up abruptly; and the consequential collapsing field of the inductor causes a voltage and current reversal that is steered into a load capacitor by an output diode. A switch across the series combination of the capacitor, inductor, and SOS diode closes to periodically reset the SOS diode by inducing a forward-biased current. 1 fig.

Druce, R.L.; Kirbie, H.C.; Newton, M.A.

1998-06-30T23:59:59.000Z

89

Convergence Analysis of DC Algorithm for DC programming with ...  

E-Print Network (OSTI)

programs to which it gave almost always global solutions and proved to be more robust ... In this paper, we consider DC programming with subanalytic data. .... open ball with the center x ? Rn and radius ? > 0 is denoted by B(x, ?); while the unit ... and C ? Rn is a nonempty convex set, we can equivalently transform it into a.

90

DC systems with transformerless converters  

Science Conference Proceedings (OSTI)

A technical and economic feasibility study of HVDC systems without converter transformers is presented. The presentation includes proposed solutions to the drawback related to the absence of galvanic separation between the ac and dc systems, if the converter transformers are eliminated. The results show that HVDC systems without converter transformers are both technically and economically feasible. The cost savings can be substantial.

Vithayathil, J.J.; Mittlestadt, W. [Bonneville Power Administration, Portland, OR (United States); Bjoerklund, P.E. [ABB Power Systems AB, Ludvika (Sweden)

1995-07-01T23:59:59.000Z

91

Material development in the SI sub 3 N sub 4 system using glass encapsulated Hip'ing  

DOE Green Energy (OSTI)

This report covers a two-year program to develop fully dense Si{sub 3}N{sub 4} matrix SiC whisker composites with enhanced properties over monolithic Si{sub 3}N{sub 4} materials. The primary goal was to develop a composite with a fracture toughness > 10 MPa{radical}m, capable of using high pressure glass encapsulated HIP'ing. Coating methods were developed to apply thin (<150nm) stoichiometric BN layers to SiC whiskers and also to apply a dual coating of SiC over carbon to the whiskers. Fracture toughness of the composites was determined to increase as the quantity of whiskers (or elongated grains) with their axis perpendicular to the crack plane increased. Of the interface compositions evaluated in this effort, carbon was determined to be the most effective for increasing toughness. The highest toughnesses (6.8--7.0 MPa{radical}m) were obtained with uniaxially aligned carbon coated whiskers. There was no evidence of the carbon coating compromising the oxidation resistance of the composites at 1370{degree}C.

Corbin, N.D.; Sundberg, G.J.; Siebein, K.N.; Willkens, C.A.; Pujari, V.K.; Rossi, G.A.; Hansen, J.S.; Chang, C.L.; Hammarstrom, J.L.

1992-04-01T23:59:59.000Z

92

DC to DC power converters and methods of controlling the same  

DOE Patents (OSTI)

A power generation system configured to provide direct current (DC) power to a DC link is described. The system includes a first power generation unit configured to output DC power. The system also includes a first DC to DC converter comprising an input section and an output section. The output section of the first DC to DC converter is coupled in series with the first power generation unit. The first DC to DC converter is configured to process a first portion of the DC power output by the first power generation unit and to provide an unprocessed second portion of the DC power output of the first power generation unit to the output section.

Steigerwald, Robert Louis; Elasser, Ahmed; Sabate, Juan Antonio; Todorovic, Maja Harfman; Agamy, Mohammed

2012-12-11T23:59:59.000Z

93

Microsoft Word - article_dc.doc  

Gasoline and Diesel Fuel Update (EIA)

of 15 of 15 U.S. Coal Supply and Demand: 2007 Review by Fred Freme U.S. Energy Information Administration Overview Coal production in the United States in 2007 totaled 1,145.6 million short tons according to preliminary data from the Energy Information Administration (Table 1), a decrease of 1.5 percent, or 17.2 million short tons from the 2006 record level of 1,162.7 million short tons. Although coal production declined in 2007, U.S. total coal consumption increased for the year. Coal consumption in 2007 in the electric power sector was higher by 1.9 percent, while coking coal consumption decreased by 1.1 percent and the other industrial sector declined by 5.0 percent. (Note: All percentage change calculations are done at the short- tons level.) U.S. coal exports were significantly

94

Catalog of DC Appliances and Power Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Catalog of DC Appliances and Power Systems Catalog of DC Appliances and Power Systems Title Catalog of DC Appliances and Power Systems Publication Type Report LBNL Report Number LBNL-5364E Year of Publication 2011 Authors Garbesi, Karina, Vagelis Vossos, and Hongxia Shen Document Number LBNL-5364E Date Published October Publisher Lawrence Berkeley National Laboratory Abstract This document catalogs the characteristics of current and potential future direct current (DC) products and power systems. It is part of a larger U.S. Department of Energy-funded project, "Direct-DC Power Systems for Energy Efficiency and Renewable Energy Integration with a Residential and Small Commercial Focus". That project is investigating the energy-savings potential, benefits, and barriers of using DC generated by on-site renewable energy systems directly in its DC form, rather than converting it first to alternating current (AC) for distribution to loads. Two related reports resulted from this work: this Catalog and a companion report that addresses direct-DC energy savings in U.S. residential buildings.Interest in 'direct-DC' is motivated by a combination of factors: the very rapid increase in residential and commercial photovoltaic (PV) power systems in the United States; the rapid expansion in the current and expected future use of energy efficient products that utilize DC power internally; the demonstrated energy savings of direct-DC in commercial data centers; and the current emergence of direct-DC power standards and products designed for grid-connected residential and commercial products. Based on an in-depth study of DC appliances and power systems, we assessed off-grid markets for DC appliances, the DC compatibility of mainstream electricity end-uses, and the emerging mainstream market for direct-DC appliances and power systems.

95

Ecological benefits of dc power transmission  

Science Conference Proceedings (OSTI)

The environmental effects of dc overhead transmission lines are examined. The major effects of ac and dc transmission lines are compared. Dc lines have advantages compared to ac lines in terms of electrical safety for people under the lines, biological effects, corona losses, and clearance width.

Kutuzova, N. B. [JSC 'NIIPT' (Russian Federation)

2011-05-15T23:59:59.000Z

96

A high-voltage low-power DC-DC buck regulator for automotive applications  

Science Conference Proceedings (OSTI)

This work presents a High-Voltage Low-Power CMOS DC-DC buck regulator for automotive applications. The overall system, including the high and low voltage analog devices, the power MOS and the low voltage digital devices, was realized in the Austriamicrosystems ... Keywords: DC-DC regulator, buck converter, current control, low quiscent current, pulse frequency modulation

G. Pasetti; L. Fanucci; R. Serventi

2010-03-01T23:59:59.000Z

97

DC picogrids: a case for local energy storage for uninterrupted power to DC appliances  

Science Conference Proceedings (OSTI)

An increasing number of appliances now operate on DC and providing uninterrupted power supply (UPS) to them through outages requires two conversions: first from an energy store, typically a DC battery, to AC mains and then from AC mains to the DC input ... Keywords: DC picogrid, conversion losses, power source identification

Sunil Kumar Ghai, Zainul Charbiwala, Swarnalatha Mylavarapu, Deva P. Seetharamakrishnan, Rajesh Kunnath

2013-01-01T23:59:59.000Z

98

Multiport DC/DC Converter for Stand-alone Photovoltaic Lighting System with Battery Storage  

Science Conference Proceedings (OSTI)

Photovoltaic energy has nowadays an increased importance in electrical power applications. However, the output power provided via the photovoltaic conversion process depends on solar irradiation and temperature. Therefore a multiple-input DC/DC converter ... Keywords: Multiport DC/DC Converter, photovoltaic (PV), battery, charge/discharge

Shengyong Liu; Xing Zhang; Haibin Guo; Jun Xie

2010-06-01T23:59:59.000Z

99

EA-327-A DC Energy, LLC | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7-A DC Energy, LLC EA-327-A DC Energy, LLC Order authorizing DC Energy to export electric energy to Canada. EA-327-A DC Energy.pdf More Documents & Publications Application to...

100

EA-377 DC Energy Texas LLC | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EA-377 DC Energy Texas LLC EA-377 DC Energy Texas LLC Order authorizing DC Energy Texas LLC to export electric energy to Mexico. EA-377 DC Energy Texas LLC More Documents &...

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

EA-351 DC Energy Dakota, LLC | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

51 DC Energy Dakota, LLC EA-351 DC Energy Dakota, LLC Order authorizing DC Energy Dakota, LLC to export electric energy to Canada EA-351 DC Energy Dakota, LLC More Documents &...

102

Methodology for Estimating ton-Miles of Goods Movements for U.S. Freight Mulitimodal Network System  

SciTech Connect

Ton-miles is a commonly used measure of freight transportation output. Estimation of ton-miles in the U.S. transportation system requires freight flow data at disaggregated level (either by link flow, path flows or origin-destination flows between small geographic areas). However, the sheer magnitude of the freight data system as well as industrial confidentiality concerns in Census survey, limit the freight data which is made available to the public. Through the years, the Center for Transportation Analysis (CTA) of the Oak Ridge National Laboratory (ORNL) has been working in the development of comprehensive national and regional freight databases and network flow models. One of the main products of this effort is the Freight Analysis Framework (FAF), a public database released by the ORNL. FAF provides to the general public a multidimensional matrix of freight flows (weight and dollar value) on the U.S. transportation system between states, major metropolitan areas, and remainder of states. Recently, the CTA research team has developed a methodology to estimate ton-miles by mode of transportation between the 2007 FAF regions. This paper describes the data disaggregation methodology. The method relies on the estimation of disaggregation factors that are related to measures of production, attractiveness and average shipments distances by mode service. Production and attractiveness of counties are captured by the total employment payroll. Likely mileages for shipments between counties are calculated by using a geographic database, i.e. the CTA multimodal network system. Results of validation experiments demonstrate the validity of the method. Moreover, 2007 FAF ton-miles estimates are consistent with the major freight data programs for rail and water movements.

Oliveira Neto, Francisco Moraes [ORNL; Chin, Shih-Miao [ORNL; Hwang, Ho-Ling [ORNL

2013-01-01T23:59:59.000Z

103

Phase-Shifted Full Bridge DC-DC Converter with Energy Recovery Clamp and Reduced Circulating Current  

E-Print Network (OSTI)

Phase-Shifted Full Bridge DC-DC Converter with Energy Recovery Clamp and Reduced Circulating an improved PSFB DC-DC converter using only a modified energy recovery clamp circuit attached at the secondary and/or output voltage changes. Section II describes the PSFB DC-DC circuit with the proposed energy

104

DC Distribution: The Power To Change Buildings  

NLE Websites -- All DOE Office Websites (Extended Search)

DC Distribution: The Power To Change Buildings DC Distribution: The Power To Change Buildings Speaker(s): Brian Patterson Dennis Symanski Liang Downey Date: July 14, 2011 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Chris Marnay This seminar presents an overview of the effort to create new applications standards to drive the distribution and use of native direct current (dc) in net zero energy commercial and residential buildings. From the early days of electric power generation, distribution and use there's been a debate over which form of power, AC or DC, is best. Edison set the stage for this argument in the late 1800's with his invention of DC powered lighting systems. Tesla's system of AC dynamos, transformers and motors all but stopped the growing use of DC by the turn of the century. With the

105

Map Locating Berkeley Lab Washington, DC Office  

NLE Websites -- All DOE Office Websites (Extended Search)

WASHINGTON, DC PROJECTS OFFICE WASHINGTON, DC PROJECTS OFFICE Map LEGEND: A:Berkeley Lab DC Office; PNNL; NREL; ORNL | B: EPA Waterside Mall C: Metrorail Station: Smithsonian | D: Metrorail Station: L'Enfant Plaza Notice: Due to security requirements in the building, all visitors to the Berkeley Lab DC Projects Office must check in at the ground floor entrance. If you do not have a DOE access badge, you will need to obtain a building visitor badge. To expedite this process, visitors are encouraged to RSVP to their meeting host or call (202) 488-2250 ahead of time. Metal detectors and x-ray screening of personal items are required for all visitors and staff entering the building. Directions to the Lab's Washington, DC Projects Office 901 D Street, SW Suite 950 Washington, DC 20024 Phone/Fax: (202) 488-2250

106

Microsoft Word - article_dc.doc  

Gasoline and Diesel Fuel Update (EIA)

15 15 U.S. Coal Supply and Demand: 2009 Review By Fred Freme U.S. Energy Information Administration Overview Coal production in the United States in 2009 decreased to a level of 1,072.8 million short tons according to preliminary data from the U.S. Energy Information Administration (EIA), a decline of 8.5 percent, or 99.1 million short tons below the 2008 record level of 1,171.8 million short tons (Table 1). In 2009 U.S. coal consumption decreased in all sectors while total coal stocks increased for the year. Coal consumption in the electric power sector in 2009 was lower by 10.0 percent, while coking coal consumption decreased by 30.6 percent and the other industrial sector declined by 16.6 percent. The commercial and institutional sector (which prior to

107

Active dc filter for HVDC systems  

SciTech Connect

This article is a case history of the installation of active dc filters for high-performance, low-cost harmonics filtering at the Lindome converter station in the Konti-Skan 2 HVDC transmission link between Denmark and Sweden. The topics of the article include harmonics, interference, and filters, Lindome active dc filter, active dc filter design, digital signal processor, control scheme, protection and fault monitoring, and future applications.

Zhang, W. (Royal Inst. of Tech., Stockholm (Sweden)); Asplund, G.

1994-01-01T23:59:59.000Z

108

AOCS Official Method Dc 1-59  

Science Conference Proceedings (OSTI)

Sampling and Preparation of Laboratory Sample AOCS Official Method Dc 1-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads AOCS DEFINITION Not applica

109

Catalog of DC Appliances and Power Systems  

E-Print Network (OSTI)

Savings in the Residential and Commercial Sectors with High- Efficiency Electric Motors,savings of 30% from switching to the use of variable speed brushless DC motors. Electric

Garbesi, Karina

2012-01-01T23:59:59.000Z

110

High efficiency resonant dc/dc converter for solar power applications  

E-Print Network (OSTI)

This thesis presents a new topology for a high efficiency dc/dc resonant power converter that utilizes a resistance compression network to provide simultaneous zero voltage switching and near zero current switching across ...

Inam, Wardah

2013-01-01T23:59:59.000Z

111

Radio frequency dc-dc converters : device characterization, topology evaluation, and design  

E-Print Network (OSTI)

High frequency power conversion is attractive for the opportunities it affords for improved performance. Dc-dc converters operating at high frequencies use smaller-valued energy storage elements, which tend to be physically ...

Leitermann, Olivia

2008-01-01T23:59:59.000Z

112

Design and evaluation of a very high frequency dc/dc converter  

E-Print Network (OSTI)

This thesis presents a resonant boost topology suitable for very high frequency (VHF, 30-300 MHz) dc-dc power conversion. The proposed design is a fixed frequency, fixed duty ratio resonant converter featuring low device ...

Pilawa-Podgurski, Robert C. N

2007-01-01T23:59:59.000Z

113

Design and characterization of a radio-frequency dc/dc power converter  

E-Print Network (OSTI)

The use of radio-frequency (RF) amplifier topologies in dc/dc power converters allows the operating frequency to be increased by more than two orders of magnitude over the frequency of conventional converters. This enables ...

Jackson, David A. (David Alexander)

2005-01-01T23:59:59.000Z

114

Washington, DC~ZO585  

Office of Legacy Management (LM)

jpfl.3%2' jpfl.3%2' ) .,Departhent of Eikrgj! : Washington, DC~ZO585 .-, , , Lf; I: ~.1,' .Yj4 , The Honorable Louis Barlup 55 ,E. Main Street Waynesboro;,Pennsy,lvania 17268 '~ Dear Mayor Barl,up:' Secretary of Energy Hazel O'Leary has'announced' a new approach to openness,in the Department of Energy-(DOE) and its communications with the public. In support-of this initiative, we are pleased.to forward the enclosed information related to the former Landis Machine Tool Co. site in your jurisdiction that performed work for DOE or its predecessor agencies. This information:is provided for your information< use, and retention. DOE's Formerly Utilized Sites Remedial Action Program is responsible for identification of sites used by DOE's predecessor agencies, determining their

115

High voltage DC power supply  

DOE Patents (OSTI)

A high voltage DC power supply having a first series resistor at the output for limiting current in the event of a short-circuited output, a second series resistor for sensing the magnitude of output current, and a voltage divider circuit for providing a source of feedback voltage for use in voltage regulation is disclosed. The voltage divider circuit is coupled to the second series resistor so as to compensate the feedback voltage for a voltage drop across the first series resistor. The power supply also includes a pulse-width modulated control circuit, having dual clock signals, which is responsive to both the feedback voltage and a command voltage, and also includes voltage and current measuring circuits responsive to the feedback voltage and the voltage developed across the second series resistor respectively. 7 figs.

Droege, T.F.

1989-12-19T23:59:59.000Z

116

DOE - Office of Legacy Management -- Naval Research Laboratory - DC 02  

Office of Legacy Management (LM)

Research Laboratory - DC 02 Research Laboratory - DC 02 FUSRAP Considered Sites Site: NAVAL RESEARCH LABORATORY (DC.02 ) Eliminated from consideration under FUSRAP - Referred to DOD Designated Name: Not Designated Alternate Name: None Location: Washington , D.C. DC.02-4 Evaluation Year: 1987 DC.02-4 Site Operations: Research and development on thermal diffusion. DC.02-4 Site Disposition: Eliminated - No Authority - AEC licensed - Military facility DC.02-4 DC.02-1 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium, Thorium DC.02-2 DC.02-3 Radiological Survey(s): None Indicated Site Status: Eliminated from consideration under FUSRAP - Referred to DOD DC.02-4 Also see Documents Related to NAVAL RESEARCH LABORATORY DC.02-1 - AEC Memorandum and Source Material License No. C-3393;

117

Washington, DC | Building Energy Codes Program  

NLE Websites -- All DOE Office Websites (Extended Search)

Washington, DC Washington, DC Last updated on 2013-08-02 Current News In December, the DC CCCB voted 7-1 to adopt the 2012 IECC. The code will now enter administrative review and legislative process with likely adoption in the second half of 2013. Commercial Residential Code Change Current Code ASHRAE Standard 90.1-2007 with Amendments Amendments / Additional State Code Information Based on 2008 DC Construction Code with several amendments. State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the District of Columbia (BECP Report, Sept. 2009) Approximate Energy Efficiency Equivalent to ASHRAE 90.1-2007 Effective Date 12/26/2009 Adoption Date 12/26/2008 Code Enforcement Mandatory DOE Determination ASHRAE 90.1-2007: Yes ASHRAE 90.1-2010: No DC DOE Determination Letter, May 31, 2013

118

Conceptual design study on incorporating a 25-ton/day pyrolysis unit into an operating total energy system. Final report  

DOE Green Energy (OSTI)

The results of a conceptual design study on incorporating a pyrolysis unit into an existing total energy plant are presented. The objectives of this study were to examine the institutional, technical and economic factors affecting the incorporation of a 25-ton/day pyrolysis unit into the Indian Creek Total Energy Plant. The Indian Creek total energy plant is described. Results of the conceptual design are presented. A survey of the availability of waste materials and a review of health and safety ordinances are included. The technical aspects of the pyrolysis system are discussed, including the results of the review of facilities requirements for the pyrolysis unit, the analysis of necessary system modification, and an estimate of the useful energy contribution by the pyrolysis unit. Results of the life-cycle cost analysis of the pyrolysis unit are presented. The major conclusions are that: there appears to be no institutional or technical barriers to constructing a waste pyrolysis unit at the Indian Creek Total Energy Plant; pyrolysis gas can be consumed in the engines and the boilers by utilizing venturi mixing devices; the engines can consume only 5% of the output of the 25-ton/day pyrolysis unit; Therefore, consumption of pyrolysis gas will be controlled by boiler energy demand patterns; a waste pyrolysis unit is not cost effective at the current natural gas price of $0.90/10/sup 6/ Btu; and pyrolysis is economically attractive at natural gas prices above $3.00/10/sup 6/ Btu.

None

1976-12-13T23:59:59.000Z

119

State Energy Program Assurances - Washington D.C. Mayor Fenty...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

State Energy Program Assurances - Washington D.C. Mayor Fenty State Energy Program Assurances - Washington D.C. Mayor Fenty Letter from Washington D.C. Mayor Fenty providing...

120

EA-377 DC Energy Texas | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7 DC Energy Texas EA-377 DC Energy Texas Order authorizing DC Energy Texas to export electric energy to Mexico. EA-377 DCE Texas Order.pdf More Documents & Publications Application...

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

EA-377 DC Energy Texas | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EA-377 DC Energy Texas EA-377 DC Energy Texas Order authorizing DC Energy Texas to export electric energy to Mexico. EA-377 DCE Texas Order.pdf More Documents & Publications...

122

National Petroleum Council Washington, DC | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

National Petroleum Council Washington, DC National Petroleum Council Washington, DC Remarks by Secretary of Energy Spencer Abraham on the national energy plan. National Petroleum...

123

Methods and results for stress analyses on 14-ton, thin-wall depleted UF{sub 6} cylinders  

Science Conference Proceedings (OSTI)

Uranium enrichment operations at the three US gaseous diffusion plants produce depleted uranium hexafluoride (DUF{sub 6}) as a residential product. At the present time, the inventory of DUF{sub 6} in this country is more than half a million tons. The inventory of DUF{sub 6} is contained in metal storage cylinders, most of which are located at the gaseous diffusion plants. The principal objective of the project is to ensure the integrity of the cylinders to prevent causing an environmental hazard by releasing the contents of the cylinders into the atmosphere. Another objective is to maintain the cylinders in such a manner that the DUF{sub 6} may eventually be converted to a less hazardous material for final disposition. An important task in the DUF{sub 6} cylinders management project is determining how much corrosion of the walls can be tolerated before the cylinders are in danger of being damaged during routine handling and shipping operations. Another task is determining how to handle cylinders that have already been damaged in a manner that will minimize the chance that a breach will occur or that the size of an existing breach will be significantly increased. A number of finite element stress analysis (FESA) calculations have been done to analyze the stresses for three conditions: (1) while the cylinder is being lifted, (2) when a cylinder is resting on two cylinders under it in the customary two-tier stacking array, and (3) when a cylinder is resting on tis chocks on the ground. Various documents describe some of the results and discuss some of the methods whereby they have been obtained. The objective of the present report is to document as many of the FESA cases done at Oak Ridge for 14-ton thin-wall cylinders as possible, giving results and a description of the calculations in some detail.

Kirkpatrick, J.R.; Chung, C.K.; Frazier, J.L.; Kelley, D.K.

1996-10-01T23:59:59.000Z

124

News From the D.C. Office  

NLE Websites -- All DOE Office Websites (Extended Search)

3 Aerial view of Washington D.C. 3 Aerial view of Washington D.C. News From the D.C. Office The federal government is the largest single purchaser in the world for many energy-related products. Federal buying power-along with that of state and local agencies-represents a largely untapped resource to increase the energy efficiency of consumer products and commercial equipment. LBL is helping the DOE Federal Energy Management Program (FEMP) develop and lead a government-wide initiative to capture this market-transforming opportunity. Jeff Harris and others in LBL's D.C. office are heading FEMP's efforts to identify how future federal purchases can be more energy-efficient. The U.S. government spends more than $70 billion a year to purchase supplies and equipment, of which an estimated $10-20 billion are energy-

125

D.C. | OpenEI Community  

Open Energy Info (EERE)

94 94 Varnish cache server Home Groups Community Central Green Button Applications Developer Utility Rate FRED: FRee Energy Database More Public Groups Private Groups Features Groups Blog posts Content Stream Documents Discussions Polls Q & A Events Notices My stuff Energy blogs 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142234494 Varnish cache server D.C. Home Kyoung's picture Submitted by Kyoung(155) Contributor 6 September, 2012 - 08:51 GRR Update Meeting scheduled for 9/13 in D.C. D.C. GRR meeting update The next Geothermal Regulatory Roadmap update meeting will be held in Washington, D.C. on Thursday, September 13 from 2-4 p.m. Syndicate content 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation:

126

AOCS Official Method Dc 3b-59  

Science Conference Proceedings (OSTI)

Alcohol-Insoluble Matter AOCS Official Method Dc 3b-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION The residue from the alcohol-soluble determination (AOCS O

127

AOCS Official Method Dc 5-59  

Science Conference Proceedings (OSTI)

Combined Alcohols AOCS Official Method Dc 5-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines total fatty alcohols and permits estimation

128

AOCS Official Method Dc 6-59  

Science Conference Proceedings (OSTI)

Alkalinity AOCS Official Method Dc 6-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the alkalinity or acidity of fatty alkyl sulfates.

129

AOCS Official Method Dc 7-59  

Science Conference Proceedings (OSTI)

Sodium Sulfate AOCS Official Method Dc 7-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the sodium sulfate in fatty alkyl sulfates by

130

AOCS Official Method Dc 3a-59  

Science Conference Proceedings (OSTI)

Alcohol-Soluble Matter AOCS Official Method Dc 3a-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines the total alcohol-soluble matter in a

131

AOCS Official Method Dc 8-59  

Science Conference Proceedings (OSTI)

Unsulfated Material AOCS Official Method Dc 8-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines unsulfated fatty alcohols in fatty alkyl

132

AOCS Official Method Dc 4-59  

Science Conference Proceedings (OSTI)

Ester Sulfites AOCS Official Method Dc 4-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION The determination of ester SO 3 is dependent upon the hydro

133

Catalog of DC Appliances and Power Systems  

E-Print Network (OSTI)

produce a DC-compatible dishwasher that uses 51% less energyCooking Equipments Dishwashers Lighting Electric Other Waterby end-Use ( TWh) Dishwashers DVDs/VCRs DVDs/VCRs Freezers

Garbesi, Karina

2012-01-01T23:59:59.000Z

134

AOCS Official Method Dc 2-59  

Science Conference Proceedings (OSTI)

Moisture by Distillation Method AOCS Official Method Dc 2-59 Methods Methods and Analyses Analytical Chemistry Methods Downloads Methods Downloads DEFINITION This method determines moisture by distillation with

135

Recovery Act State Memos Washington, DC  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Washington, DC Washington, DC For questions about DOE's Recovery Act activities, please contact the DOE Recovery Act Clearinghouse: 1-888-DOE-RCVY (888-363-7289), Monday through Friday, 9 a.m. to 7 p.m. Eastern Time https://recoveryclearinghouse.energy.gov/contactUs.htm. All numbers and projects listed as of June 1, 2010 TABLE OF CONTENTS RECOVERY ACT SNAPSHOT................................................................................... 1 FUNDING ALLOCATION TABLE.............................................................................. 2 ENERGY EFFICIENCY ............................................................................................... 3 RENEWABLE ENERGY ............................................................................................. 5

136

Development and Demonstration of DC Photovoltaic Applications  

Science Conference Proceedings (OSTI)

This report documents a field demonstration performed at Bowling Green State University (BGSU) as part of an Electric Power Research Institute (EPRI) research project on improving the economics of photovoltaic (PV) power generation with innovative direct current (dc) applications. Unlike conventional dc uses for PV energy, this project aimed to demonstrate the powering of specific loads in grid-connected buildings without interference to the ac distribution system or other building loads.

2009-10-28T23:59:59.000Z

137

AC/DC Smart Control and Power Sharing of DC Distribution Systems.  

E-Print Network (OSTI)

?? The purpose of this research is to develop a grid connected DC distribution system to ensure efficient integration of different alternate sources to the… (more)

Elshaer, Mohamed A

2012-01-01T23:59:59.000Z

138

A review of DC micro-grid protection  

Science Conference Proceedings (OSTI)

In this paper, an overview of DC micro-grid is described, which includes the status of DC micro-grid protection and its future development. The paper presents the key techniques of DC micro-grid protection. So far, standards, guidelines and techniques ... Keywords: DC micro-grid, protection, protective devices, structures, technological gaps

Yuhong Xie, Jia Ning, Yanquan Huang, Junbo Jia, Zhihui Jian

2013-06-01T23:59:59.000Z

139

DC's Marble ceiling : urban height and its regulation in Washington, DC  

E-Print Network (OSTI)

Washington, DC has a unique urban form that is the result of a century-old law. Through the narrow lens of DC's height limit, I survey a range of topics related to urban height, starting with a review of its history of ...

Trueblood, Andrew Tyson

2009-01-01T23:59:59.000Z

140

Brief paper: Optimal switching instants for a switched-capacitor DC/DC power converter  

Science Conference Proceedings (OSTI)

We consider a switched-capacitor DC/DC power converter with variable switching instants. The determination of optimal switching instants giving low output ripple and strong load regulation is posed as a non-smooth dynamic optimization problem. By introducing ... Keywords: Control parametrization enhancing transform, Impulsive dynamical system, Power converter, Semi-infinite programming, Switched linear system

R. C. Loxton; K. L. Teo; V. Rehbock; W. K. Ling

2009-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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141

A single inductor dual input dual output DC-DC converter with hybrid supplies for solar energy harvesting applications  

Science Conference Proceedings (OSTI)

A single inductor dual input dual output (SIDIDO) DC-DC converter is proposed for solar energy harvesting applications. The converter supports hybrid power supplies from both the photovoltaic (PV) cells and the rechargeable battery. Apart from the conventional ... Keywords: DC-DC converter, MPPT, PV cells, dual-input-dual-output, energy harvesting, single inductor

Hui Shao; Chi-Ying Tsui; Wing-Hung Ki

2009-08-01T23:59:59.000Z

142

Taking out 1 billion tons of CO2: The magic of China's 11th Five-Year Plan?  

SciTech Connect

China's 11th Five-Year Plan (FYP) sets an ambitious target for energy-efficiency improvement: energy intensity of the country's gross domestic product (GDP) should be reduced by 20% from 2005 to 2010 (NDRC, 2006). This is the first time that a quantitative and binding target has been set for energy efficiency, and signals a major shift in China's strategic thinking about its long-term economic and energy development. The 20% energy intensity target also translates into an annual reduction of over 1.5 billion tons of CO2 by 2010, making the Chinese effort one of most significant carbon mitigation effort in the world today. While it is still too early to tell whether China will achieve this target, this paper attempts to understand the trend in energy intensity in China and to explore a variety of options toward meeting the 20% target using a detailed end-use energy model.

Zhou, Nan; Lin, Jiang; Zhou, Nan; Levine, Mark; Fridley, David

2007-07-01T23:59:59.000Z

143

Chemical reactions of UF{sub 6} with water on ingress to damaged model 48X 10 ton cylinder  

Science Conference Proceedings (OSTI)

Chemistry studies of the effects of water flooding in Model 48X 10-ton UF{sub 6} storage cylinders, as a result of impact fractures, were conducted to support the Safety Analysis Report for Packaging (SARP) review of the Paducah Tiger Overpack for transportation of those cylinders. The objectives of the study were to determine the maximum amount of water that could be admitted to the interior of such a damaged cylinder, the resulting geometries and chemical compositions from reactions of water with the UF{sub 6} contents of the cylinder, and the end-state water moderated and reflected configurations for input to nuclear criticality safety analyses. The case identified for analysis was the flooding of the inside of a cylinder, submerged horizontally in 3 ft of water. The flooding was driven by an initial pressure drop of 13 psig, through an assumed fracture (1/32 in. wide {times} 1/2 in. deep {times} 18 in. long) in the barrel of the cylinder. During the initial addition of water, transient back pressures occur from the effects of the heats of reaction and solution at the water/UF{sub 6} interface, with some chugging as more water is added to alternately coot the reaction surface and then heat it again as the added water reacts with more UF{sub 6}.

Rothman, A.B.

1996-02-01T23:59:59.000Z

144

Good Energies (Washington DC) | Open Energy Information  

Open Energy Info (EERE)

Energies (Washington DC) Energies (Washington DC) Name Good Energies (Washington DC) Address 1250 24th St., NW, Suite 250 Place Washington, District of Columbia Zip 20037 Product Global investor in renewable energy and energy efficiency industries Year founded 2001 Phone number (202) 747-2550 Website http://www.goodenergies.com/ Coordinates 38.90649°, -77.051534° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.90649,"lon":-77.051534,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

145

By Thomas S. Jones Manganese (Mn) is essential to iron and silicomanganese increased about 7%. consisted of, in tons, natural battery-grade ore,  

E-Print Network (OSTI)

about 7%. consisted of, in tons, natural battery-grade ore, steel production by virtue of its sulfur aluminum alloys and is used in oxide form in dry cell batteries. The overall level and nature of manganese consumption in batteries was denoted by the expansion on schedule of domestic capacity for production

Torgersen, Christian

146

Review of corrosion in 10- and 14-ton mild steel depleted UF{sub 6} storage cylinders  

Science Conference Proceedings (OSTI)

A literature review was conducted to determine the type, extent and severity of corrosion found in the 10- and 14-ton mild steel depleted UF{sub 6} storage cylinders. Also discussed in this review is corrosion found in the valves and plugs used in the cylinders. Corrosion of the cylinders is a gradual process which occurs slowly over time. Understanding corrosion of the cylinders is an important concern for long term storage of the UF{sub 6} in the cylinder yards, as well as the final disposition of the depleted UF{sub 6} tails inventory in the future. The following conclusions are made from the literature review: (1) The general external corrosion rate of the cylinders is about 1 to 2 mils per year (1 mil = 0.001{double_prime}). The highest general external corrosion rate was over 5 mpy on the 48G type cylinders. (2) General internal corrosion from the depleted UF{sub 6} is negligible under normal storage conditions. Crevice corrosion can occur at the cylinder/saddle interface from the retention of water in this area. Crevice corrosion can occur at the cylinder/skirt interface on the older skirted cylinders due to the lack of water drainage in this area. Crevice corrosion can occur on cylinders that have been in ground contact. Crevice corrosion and galvanic corrosion can occur where the stainless steel I.D. nameplates are attached to the cylinder. The packing nuts on the bronze one-inch valves used in the cylinders are susceptible to stress corrosion cracking (SCC). Mechanical damage from routine handling can lead to a breach in a cylinder with subsequent accelerated corrosion of the mild steel due to attack from HF and other UF{sub 6} hydrolysis by-products.

Lykins, M.L.

1995-08-01T23:59:59.000Z

147

Perseus LLC (Washington DC) | Open Energy Information  

Open Energy Info (EERE)

DC) DC) Jump to: navigation, search Logo: Perseus LLC (Washington DC) Name Perseus LLC (Washington DC) Address 2099 Pennsylvania Avenue, N.W., 9th Floor Place Washington, District of Columbia Zip 20006 Product Private equity fund Year founded 1995 Phone number (202) 452-0101 Website http://www.perseusllc.com/ Coordinates 38.901462°, -77.046347° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.901462,"lon":-77.046347,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

148

Halbach array DC motor/generator  

DOE Patents (OSTI)

A new configuration of DC motor/generator is based on a Halbach array of permanent magnets. This motor does not use ferrous materials so that the only losses are winding losses and losses due to bearings and windage. An "inside-out" design is used as compared to a conventional motor/generator design. The rotating portion, i.e., the rotor, is on the outside of the machine. The stationary portion, i.e., the stator, is formed by the inside of the machine. The rotor contains an array of permanent magnets that provide a uniform field. The windings of the motor are placed in or on the stator. The stator windings are then "switched" or "commutated" to provide a DC motor/generator much the same as in a conventional DC motor. The commutation can be performed by mechanical means using brushes or by electronic means using switching circuits. The invention is useful in electric vehicles and adjustable speed DC drives.

Merritt, Bernard T. (Livermore, CA); Dreifuerst, Gary R. (Livermore, CA); Post, Richard F. (Walnut Creek, CA)

1998-01-01T23:59:59.000Z

149

Halbach array DC motor/generator  

DOE Patents (OSTI)

A new configuration of DC motor/generator is based on a Halbach array of permanent magnets. This motor does not use ferrous materials so that the only losses are winding losses and losses due to bearings and windage. An ``inside-out`` design is used as compared to a conventional motor/generator design. The rotating portion, i.e., the rotor, is on the outside of the machine. The stationary portion, i.e., the stator, is formed by the inside of the machine. The rotor contains an array of permanent magnets that provide a uniform field. The windings of the motor are placed in or on the stator. The stator windings are then ``switched`` or ``commutated`` to provide a DC motor/generator much the same as in a conventional DC motor. The commutation can be performed by mechanical means using brushes or by electronic means using switching circuits. The invention is useful in electric vehicles and adjustable speed DC drives. 17 figs.

Merritt, B.T.; Dreifuerst, G.R.; Post, R.F.

1998-01-06T23:59:59.000Z

150

Publications Dipl.-Ing. Ing. Hana Krsn (ne Spickov)  

E-Print Network (OSTI)

analýzu VLBI dat. Konferenz des CEDR ­ Center for Earth's Dynamic Research. Trest, Czech Republic, 14 ­ 16

Schuh, Harald

151

SoC Energy Savings = Reduce+Reuse+Recycle: A Case Study Using a 660MHz DC-DC Converter with Integrated Output Filter  

E-Print Network (OSTI)

SoC Energy Savings = Reduce+Reuse+Recycle: A Case Study Using a 660MHz DC-DC Converter will use all 3 of these techniques in the DC-DC buck converter shown in Fig. 1. Energy reduction of the DC-DC converter front-end drivers. Power Converter supplied energy reused energy recycled energy

Lemieux, Guy

152

SUBCONTRACT REPORT: DC-DC Converter for Fuel Cell and Hybrid Vehicles  

DOE Green Energy (OSTI)

The goal of this project is to develop and fabricate a 5kW dc-dc converter with a baseline 14V output capability for fuel cell and hybrid vehicles. The major objectives for this dc-dc converter technology are to meet: Higher efficiency (92%); High coolant temperature,e capability (105 C); High reliability (15 Years/150,000miles); Smaller volume (5L); Lower weight (6kg); and Lower cost ($75/kW). The key technical challenge for these converters is the 105 C coolant temperatures. The power switches and magnetics must be designed to sustain these operating temperatures reliably, without a large cost/mass/volume penalty.

Marlino, Laura D [ORNL; Zhu, Lizhi [Ballard Power Systems/Siemens VDO

2007-07-01T23:59:59.000Z

153

Custom DC-DC converters for distributing power in SLHC trackers  

E-Print Network (OSTI)

A power distribution scheme based on the use of on-board DC-DC converters is proposed to efficiently distribute power to the on-detector electronics of SLHC trackers. A comparative analysis of different promising converter topologies is presented, leading to the choice of a magneticbased buck converter as a first conversion stage followed by an on-chip switched capacitors converter. An overall efficiency above 80% is estimated for the practical implementation proposed.

Allongue, B; Blanchot, G; Faccio, F; Fuentes, C; Mattavelli, P; Michelis, S; Orlandis, S; Spiazzi, G

2008-01-01T23:59:59.000Z

154

Utility Direct Medium Voltage DC Fast Charger Update: DC Fast Charger Characterization  

Science Conference Proceedings (OSTI)

EPRI developed a fact charging technology for electric vehicles based on a solid state transformer technology known as the Intelligent Universal Transformer (IUT). The IUT technology replaces both the independent power conversion units as well as the conventional transformer with a single interface system which can be used for fast charging of electric vehicles. The versatility of the IUT provides an intermediate DC bus voltage at the 400-V level that can be directly used for a DC distribution ...

2012-12-31T23:59:59.000Z

155

System Tests with DC-DC Converters for the CMS Silicon Strip Tracker at SLHC  

E-Print Network (OSTI)

The delivery of power is considered to be one of the major challenges for the upgrade of the CMS silicon strip tracker for SLHC. The inevitable increase in granularity and complexity of the device is expected to result in a power consumption comparable or even higher than the power consumption of todays' strip tracker. However, the space available for cables will remain the same. In addition, a further increase of the tracker material budget due to cables and cooling is considered inacceptable, as the performance of the CMS detector must not be compromised for the upgrade. Novel powering schemes such as serial powering or usage of DC-DC converters have been proposed to solve the problem. To test the second option, substructures of the current CMS silicon strip tracker have been operated for the first time with off-the-shelf DC-DC buck converters as well as with first prototypes of custom-designed DC-DC converters. The tests are described and the results are discussed.

Klein, K; Karpinski, W; Merz, J; Sammet, J

2008-01-01T23:59:59.000Z

156

PowerCentsDC Program Final Report | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

initiated PowerCentsDC to test the reactions and impacts on consumer behavior of smart prices, smart meters, and smart thermostats in the District of Columbia. PowerCentsDC Program...

157

Definition: DC Resistivity Survey (Wenner Array) | Open Energy...  

Open Energy Info (EERE)

Wenner Array) Jump to: navigation, search Dictionary.png DC Resistivity Survey (Wenner Array) The Wenner array is a type of electrode configuration for a DC resistivity survey and...

158

Definition: DC Resistivity Survey (Pole-Dipole Array) | Open...  

Open Energy Info (EERE)

Pole-Dipole Array) Jump to: navigation, search Dictionary.png DC Resistivity Survey (Pole-Dipole Array) The Pole-Dipole array is a type of electrode configuration for a DC...

159

User Science Exhibition March 28-29 in Washington DC  

NLE Websites -- All DOE Office Websites (Extended Search)

User Science Exhibition March 28-29 in Washington DC User Science Exhibition March 28-29 in Washington DC February 17, 2012 by Francesca Verdier (0 Comments) This March 28 and 29...

160

D.C. WRRC Report No. GLOSSARY OF USEFUL  

E-Print Network (OSTI)

#12;#12;D.C. WRRC Report No. GLOSSARY OF USEFUL WATER RESEARCH TERMS The D.C. Water Resources PREFACE The glossary of water research terms was prepared from a compilation of glossaries from various

District of Columbia, University of the

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Biomass as Feedstock for a Bioenergy and Bioproducts Industry: The Technical Feasability of a Billion-Ton Annual Supply  

SciTech Connect

The U.S. Department of Energy (DOE) and the U.S. Department of Agriculture (USDA) are both strongly committed to expanding the role of biomass as an energy source. In particular, they support biomass fuels and products as a way to reduce the need for oil and gas imports; to support the growth of agriculture, forestry, and rural economies; and to foster major new domestic industries--biorefineries--making a variety of fuels, chemicals, and other products. As part of this effort, the Biomass R&D Technical Advisory Committee, a panel established by the Congress to guide the future direction of federally funded biomass R&D, envisioned a 30 percent replacement of the current U.S. petroleum consumption with biofuels by 2030. Biomass--all plant and plant-derived materials including animal manure, not just starch, sugar, oil crops already used for food and energy--has great potential to provide renewable energy for America's future. Biomass recently surpassed hydropower as the largest domestic source of renewable energy and currently provides over 3 percent of the total energy consumption in the United States. In addition to the many benefits common to renewable energy, biomass is particularly attractive because it is the only current renewable source of liquid transportation fuel. This, of course, makes it invaluable in reducing oil imports--one of our most pressing energy needs. A key question, however, is how large a role could biomass play in responding to the nation's energy demands. Assuming that economic and financial policies and advances in conversion technologies make biomass fuels and products more economically viable, could the biorefinery industry be large enough to have a significant impact on energy supply and oil imports? Any and all contributions are certainly needed, but would the biomass potential be sufficiently large to justify the necessary capital replacements in the fuels and automobile sectors? The purpose of this report is to determine whether the land resources of the United States are capable of producing a sustainable supply of biomass sufficient to displace 30 percent or more of the country's present petroleum consumption--the goal set by the Advisory Committee in their vision for biomass technologies. Accomplishing this goal would require approximately 1 billion dry tons of biomass feedstock per year.

Perlack, R.D.

2005-12-15T23:59:59.000Z

162

Biomass as Feedstock for a Bioenergy and Bioproducts Industry: The Technical Feasability of a Billion-Ton Annual Supply  

DOE Green Energy (OSTI)

The U.S. Department of Energy (DOE) and the U.S. Department of Agriculture (USDA) are both strongly committed to expanding the role of biomass as an energy source. In particular, they support biomass fuels and products as a way to reduce the need for oil and gas imports; to support the growth of agriculture, forestry, and rural economies; and to foster major new domestic industries--biorefineries--making a variety of fuels, chemicals, and other products. As part of this effort, the Biomass R&D Technical Advisory Committee, a panel established by the Congress to guide the future direction of federally funded biomass R&D, envisioned a 30 percent replacement of the current U.S. petroleum consumption with biofuels by 2030. Biomass--all plant and plant-derived materials including animal manure, not just starch, sugar, oil crops already used for food and energy--has great potential to provide renewable energy for America's future. Biomass recently surpassed hydropower as the largest domestic source of renewable energy and currently provides over 3 percent of the total energy consumption in the United States. In addition to the many benefits common to renewable energy, biomass is particularly attractive because it is the only current renewable source of liquid transportation fuel. This, of course, makes it invaluable in reducing oil imports--one of our most pressing energy needs. A key question, however, is how large a role could biomass play in responding to the nation's energy demands. Assuming that economic and financial policies and advances in conversion technologies make biomass fuels and products more economically viable, could the biorefinery industry be large enough to have a significant impact on energy supply and oil imports? Any and all contributions are certainly needed, but would the biomass potential be sufficiently large to justify the necessary capital replacements in the fuels and automobile sectors? The purpose of this report is to determine whether the land resources of the United States are capable of producing a sustainable supply of biomass sufficient to displace 30 percent or more of the country's present petroleum consumption--the goal set by the Advisory Committee in their vision for biomass technologies. Accomplishing this goal would require approximately 1 billion dry tons of biomass feedstock per year.

Perlack, R.D.

2005-12-15T23:59:59.000Z

163

Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings  

E-Print Network (OSTI)

and S.P. Jamieson, DC Microgrids: Benefits and Barriers.of direct-DC and DC microgrids in residential and commercial

Garbesi, Karina

2012-01-01T23:59:59.000Z

164

A DC CIRCUIT BREAKER FOR AN ELECTRIC VEHICLE BATTERY PACK  

E-Print Network (OSTI)

A DC CIRCUIT BREAKER FOR AN ELECTRIC VEHICLE BATTERY PACK Geoff Walker Dept of Computer Science vehicle battery packs require DC circuit breakers for safety. These must break thousands of Amps DC at hundreds of Volts. The Sunshark solar racing car has a 140V 17Ahr battery box which needs such a breaker

Walker, Geoff

165

EE443L Lab 2: Modeling a DC Motor Introduction  

E-Print Network (OSTI)

: In this lab we will develop and validate a basic model of a permanent magnet DC motor (Yaskawa Electric MINI'll discuss a permanent magnet DC motor whose stator consists of a permanent magnet. In this case, we can take in the empty blocks. Figure 2: A block diagram of a permanent magnet DC motor. Prelab Questions: 1) From your

Wedeward, Kevin

166

Design of a step-down DC-DC controller integrated circuit with adaptive dead-time control  

E-Print Network (OSTI)

A constant-frequency peak current mode synchronous step-down DC-DC controller integrated circuit has been designed with adaptive dead-time control. The adaptive dead-time control circuitry is implemented as digital ...

Li, Zhipeng, M. Eng. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

167

Notices 888 First Street, NE., Washington, DC  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

11 Federal Register 11 Federal Register / Vol. 76, No. 122 / Friday, June 24, 2011 / Notices 888 First Street, NE., Washington, DC 20426. The filings in the above-referenced proceeding are accessible in the Commission's eLibrary system by clicking on the appropriate link in the above list. They are also available for review in the Commission's Public Reference Room in Washington, DC. There is an eSubscription link on the Web site that enables subscribers to receive e-mail notification when a document is added to a subscribed docket(s). For assistance with any FERC Online service, please e-mail FERCOnlineSupport@ferc.gov or call (866) 208-3676 (toll free). For TTY, call (202) 502-8659. Dated: June 20, 2011. Kimberly D. Bose, Secretary. [FR Doc. 2011-15859 Filed 6-23-11; 8:45 am]

168

Notices 888 First Street NE., Washington, DC  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

53 Federal Register 53 Federal Register / Vol. 78, No. 56 / Friday, March 22, 2013 / Notices 888 First Street NE., Washington, DC 20426. This filing is accessible on-line at http://www.ferc.gov, using the ''eLibrary'' link and is available for review in the Commission's Public Reference Room in Washington, DC. There is an ''eSubscription'' link on the Web site that enables subscribers to receive email notification when a document is added to a subscribed docket(s). For assistance with any FERC Online service, please email FERCOnlineSupport@ferc.gov, or call (866) 208-3676 (toll free). For TTY, call (202) 502-8659. Comment Date: 5:00 p.m. Eastern Time on April 2, 2013. Dated: March 15, 2013. Kimberly D. Bose, Secretary. [FR Doc. 2013-06602 Filed 3-21-13; 8:45 am] BILLING CODE 6717-01-P

169

DC side filters for multiterminal HVDC systems  

SciTech Connect

Multiterminal HVDC systems present challenges in the specification and design of suitable dc side filtering. This document examines the existing experience and addresses the particular technical problems posed by multiterminal systems. The filtering requirements of small taps are discussed, as is the potential use of active filters. Aspects of calculation and design are considered and recommendations made to guide the planners and designers of future multiterminal schemes.

Shore, N.L.; Adamson, K.; Bard, P. [and others

1996-10-01T23:59:59.000Z

170

A fully integrated switched-capacitor DC-DC converter with dual output for low power application  

Science Conference Proceedings (OSTI)

This paper presents a fully integrated on-chip switched-capacitor (SC) DC-DC converter that supports two regulated power supply voltages of 2.2V and 3.2V from 5V input supply and delivers the maximum load currents up to 8mA at both of the outputs. The ... Keywords: dc-dc converter, dual output, switched-capacitor

Heungjun Jeon; Yong-Bin Kim

2012-05-01T23:59:59.000Z

171

DOE Hydrogen and Fuel Cells Program Record 11002: Number of Cars Equivalent to 100 Metric Tons of Avoided Greenhouse Gases per Year  

NLE Websites -- All DOE Office Websites (Extended Search)

02 Date: January 5, 2011 02 Date: January 5, 2011 Title: Number of Cars Equivalent to 100 Metric Tons of Avoided Greenhouse Gases per Year Originator: Andrea Chew & Tien Nguyen Approved by: Sunita Satyapal Date: January 25, 2011 A conventional mid-size gasoline car emits 0.45 kg of greenhouse gases (GHG) per mile. 1 One hundred (100) metric tons (t) of GHG per year are equivalent to emissions from 17 conventional gasoline cars. Item: The GHG emissions cited above are from an analysis record prepared by the Department of Energy's Fuel Cell Technologies and Vehicle Technologies Programs on life-cycle emissions of greenhouse gases and petroleum use for several light-duty vehicles. 1 For cars that are between 1 and 5 years old, the average mileage is approximately 13,000,

172

Investigations on catalyzed steam gasification of biomass: feasibility study of methanol production via catalytic gasification of 200 tons of wood per day  

DOE Green Energy (OSTI)

This report is a result of an additional study made of the economic feasibility of producing fuel grade methanol from wood via catalytic gasification with steam. The report has as its basis the original 2000 tons of wood per day study generated from process development unit testing performed by the Pacific Northwest Laboratory (PNL). The goal of this additional work was to determine the feasibility of a smaller scale plant one tenth the size of the original or 200 tons of dry wood feed per day. Plant production based on this wood feed is 100 tons per day of methanol with a HHV of 9784 Btu per pound. All process and support facilities necessary to convert wood to methanol are included in this study. The plant location is Newport, Oregon. The capital cost for the plant is $34,830,000 - September 1980 basis. Methanol production costs which allow for return on capital have been calculated for various wood prices for both utility and private investor financing. These wood costs include delivery to the plant. For utility financing, the methanol production costs are, respectively, $1.20, $1.23, $1.30, and $1.44 per gallon for wood costs of $5, $10, $20, and $40 per dry ton. For private investor financing, the corresponding product costs are $1.60, $1.63, $1.70, and $1.84 per gallon for the corresponding wood costs. The costs calculated by the utility financing method include a return on equity of 15% and an interest rate of 10% on the debt. The private investor financing method, which is 100% equity financing, incorporates a discounted cash flow (DCF) return on equity of 12%. The thermal efficiency of the plant is 52.0%.

Mudge, L.K.; Weber, S.L.; Mitchell, D.H.; Sealock, L.J. Jr.; Robertus, R.J.

1981-01-01T23:59:59.000Z

173

AC-to-DC Power Transmission Line Conversion  

Science Conference Proceedings (OSTI)

System planners have grown more interest in the prospect of converting ac transmission lines to dc as transfer constraints become more severe and they increasingly recognize dc as a means to improve ac system performance. Two factors have influenced the economic case for conversion. The first is development of a new (tripole) dc configuration that allows dc to make full use of all three ac phase positions without the need for earth return. The second is the realization that converting an ac line to dc ma...

2010-11-10T23:59:59.000Z

174

Program on Technology Innovation: A Superconducting DC Cable  

Science Conference Proceedings (OSTI)

Shortly after the beginning of the twentieth century, dc power transmission was replaced by ac in order to achieve efficient transmission of electric power over long distances with available conductors and at safe distribution voltages. However, dc power was not completely abandoned, and the advent of solid-state power electronic ac-to-dc conversion equipment has reinvigorated its application. High-voltage dc power is more desirable for long-range transmission than ac in many ways: dc uses two wires rath...

2009-12-15T23:59:59.000Z

175

Investigations on catalyzed steam gasification of biomass. Appendix B: feasibility study of methanol production via catalytic gasification of 2000 tons of wood per day  

SciTech Connect

A study has been made of the economic feasibility of producing fuel grade methanol from wood via catalytic gasification with steam. The plant design in this study was developed from information on gasifier operation supplied by the Pacific Northwest Laboratory (PNL), operated by Battelle. PNL obtained this information from laboratory and process development unit testing. The plant is designed to process 2000 tons per day of dry wood to methanol. Plant production is 997 tons per day of methanol with a HHV of 9784 Btu per pound. All process and support facilities necessary to convert wood to methanol are included in this study. The plant location is Newport, Oregon. The capital cost for the plant is $120,830,000 - September 1980 basis. Methanol production costs which allow for return on capital have been calculated for various wood prices for both utility and private investor financing. These wood costs include delivery to the plant. For utility financing, the methanol production costs are respectively $.45, $.48, $.55, and $.69 per gallon for wood costs of $5, $10, $20, and $40 per dry ton. For private investor financing, the corresponding product costs are $.59, $.62, $.69, and $.83 per gallon for the corresponding wood costs. Both calculation methods include a return on equity capital in the costs. The thermal efficiency of the plant is 52.9%.

Mudge, L.K.; Weber, S.L.; Mitchell, D.H.; Sealock, L.J. Jr.; Robertus, R.J.

1981-01-01T23:59:59.000Z

176

Wide input range DC-DC converter with digital control scheme  

E-Print Network (OSTI)

In this thesis analysis and design of a wide input range DC-DC converter is proposed along with a robust power control scheme. The proposed converter and its control is designed to be compatible to a fuel cell power source, which exhibits 2:1 voltage variation as well as a slow transient response. The proposed approach consists of two stages: a primary three-level boost converter stage cascaded with a high frequency, isolated boost converter topology, which provides a higher voltage gain and isolation from the input source. The function of the first boost converter stage is to maintain a constant voltage at the input of the cascaded DC-DC converter to ensure optimal performance characteristics with high efficiency. At the output of the first boost converter a battery or ultracapacitor energy storage is connected to take care of the fuel cell slow transient response (200 watts/min). The robust features of the proposed control system ensure a constant output DC voltage for a variety of load fluctuations, thus limiting the power being delivered by the fuel cell during a load transient. Moreover, the proposed configuration simplifies the power control management and can interact with the fuel cell controller. The simulation results and the experimental results confirm the feasibility of the proposed system.

Harfman Todorovic, Maja

2004-12-01T23:59:59.000Z

177

Energy Incentive Programs, Washington DC | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Washington DC Washington DC Energy Incentive Programs, Washington DC October 29, 2013 - 11:29am Addthis Updated August 2013 What public-purpose-funded energy efficiency programs are available in the District of Columbia? In 2008, the Council of the District of Columbia passed the Clean and Affordable Energy Act (CAEA), establishing the DC Sustainable Energy Utility (DC SEU), whose mission is to provide energy assistance to low-income residents and support energy efficiency and renewable energy programs. The DC SEU, funded by the Sustainable Energy Trust Fund (also created by the CAEA) and under contract to the District Department of the Environment (DDOE), helps District residents, businesses, and institutions save energy and money. The DC SEU provides comprehensive energy services to targeted, prioritized

178

System Integration Issues of DC to DC converters in the sLHC Trackers  

E-Print Network (OSTI)

The upgrade of the trackers at the sLHC experiments requires implementing new powering schemes that will provide an increased power density with reduced losses and material budget. A scheme based on buck and switched capacitors DC to DC converters has been proposed as an optimal solution. The buck converter is based on a power ASIC, connected to a custom made air core inductor. The arrangement of the parts and the board layout of the power module are designed to minimize the emissions of EMI in a compact volume, enabling its integration on the tracker modules and staves.

Allongue, B; Faccio, F; Fuentes, c; Michelisa, S; Orlandia, S

2009-01-01T23:59:59.000Z

179

Connectivity and Bidirectional Energy Transfer in DC Microgrid Featuring Different Voltage Characteristics  

Science Conference Proceedings (OSTI)

In this paper, the connectivity issues related to linking two DC buses featuring different voltage characteristics, in terms of voltage level and ripple, in a DC micro grid are identified, analyzed and discussed. A controlled DC-DC converter was used ... Keywords: Bidirectional energy transfer, buck-boost converter, DC distribution systems, DC microgrids, voltage ripple

Mustafa Farhadi, Ahmed Mohamed, Osama Mohammed

2013-04-01T23:59:59.000Z

180

Washington DC's First Electric Vehicle Charging Station | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Washington DC's First Electric Vehicle Charging Station Washington DC's First Electric Vehicle Charging Station Washington DC's First Electric Vehicle Charging Station November 17, 2010 - 11:28am Addthis Street signage for Washington, DC's first electric vehicle charging station located on the northwest corner of the intersection of U and 14th streets. | Department of Energy Photo | Street signage for Washington, DC's first electric vehicle charging station located on the northwest corner of the intersection of U and 14th streets. | Department of Energy Photo | Shannon Brescher Shea Communications Manager, Clean Cities Program It's always exciting to attend a grand opening, especially when it represents a "first" for an entire region. Yesterday, the U.S. Department of Energy and the city of Washington, DC joined together to

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

A nuclear criticality safety assessment of the loss of moderation control in 2 1/2 and 10-ton cylinders containing enriched UF sub 6  

Science Conference Proceedings (OSTI)

Moderation control for maintaining nuclear criticality safety in 2-1/2-ton, 10-ton, and 14-ton cylinders containing enriched uranium hexafluoride (UF{sub 6}) has been used safely within the nuclear industry for over thirty years, and is dependent on cylinder integrity and containment. This assessment evaluates the loss of moderation control by the breaching of containment and entry of water into the cylinders. The first objective of this study was to estimate the required amounts of water entering these large UF{sub 6} cylinders to react with, and to moderate the uranium compounds sufficiently to cause criticality. Hypothetical accident situations were modeled as a uranyl fluoride (UO{sub 2}F{sub 2}) slab above a UF{sub 6} hemicylinder, and a UO{sub 2} sphere centered within a UF{sub 6} hemicylinder. These situations were investigated by computational analyses utilizing the KENO V.a Monte Carlo Computer Code. The results were used to estimate both the masses of water required for criticality, and the limiting masses of water that could be considered safe. The second objective of the assessment was to calculate the time available for emergency control actions before a criticality would occur, i.e., a safetime,'' for various sources of water and different size openings in a breached cylinder. In the situations considered, except the case for a fire hose, the safetime appears adequate for emergency control actions. The assessment shows that current practices for handling moderation controlled cylinders of low enriched UF{sub 6}, along with the continuation of established personnel training programs, ensure nuclear criticality safety for routine and emergency operations. 2 refs., 5 figs., 1 tab.

Newvahner, R.L. (Portsmouth Gaseous Diffusion Plant, OH (United States)); Pryor, W.A. (PAI Corp., Oak Ridge, TN (United States))

1991-08-16T23:59:59.000Z

182

Investigations on catalyzed steam gasification of biomass: feasibility study of methane production via catalytic gasification of 200 tons of wood per day  

DOE Green Energy (OSTI)

This report is a result of an additional study made of the economic feasibility of producing substitute natural gas (SNG) from wood via catalytic gasification with steam. The report has as its basis the original 2000 tons of wood per day study generated from process development unit testing performed by the Pacific Northwest Laboratory. The goal of this additional work was to determine the feasibility of a smaller scale plant one-tenth the size of the original or 200 tons of dry wood feed per day. Plant production based on this wood feed is 2.16 MM Scfd of SNG with a HHV of 956 Btu per Scf. All process and support facilities necessary to convert wood to SNG are included in this study. The plant location is Newport, Oregon. The capital cost for the plant is $26,680,000 - September 1980 basis. Gas production costs which allow for return on capital have been calculated for various wood prices for both utility and private investor financing. These wood prices represent the cost of unchipped wood delivered to the plant site. For utility financing, the gas production costs are, respectively, $14.34, $14.83, $15.86, and $17.84 per MM Btu for wood costs of $5, $10, $20, and $40 per dry ton. For private investor financing, the corresponding product costs are $18.76, $19.26, $20.28, and $22.31 per MM Btu for the corresponding wood costs. The costs calculated by the utility financing method includes a return on equity of 15% and an interest rate of 10% on the debt. The private investor financing method, which is 100% equity financing, incorporates a discounted cash flow (DCF) return on equity of 12%. The thermal efficiency without taking an energy credit for char is 57.4%.

Mudge, L.K.; Weber, S.L.; Mitchell, D.H.; Sealock, L.J. Jr.; Robertus, R.J.

1981-01-01T23:59:59.000Z

183

Authorized Limits for the Release of a 25 Ton Locomotive, Serial Number 21547, at the Area 25 Engine Maintenance, Assembly, and Disassembly Facility, Nevada Test Site, Nevada  

SciTech Connect

This document contains process knowledge and radiological data and analysis to support approval for release of the 25-ton locomotive, Serial Number 21547, at the Area 25 Engine Maintenance, Assembly, and Disassembly (EMAD) Facility, located on the Nevada Test Site (NTS). The 25-ton locomotive is a small, one-of-a-kind locomotive used to move railcars in support of the Nuclear Engine for Rocket Vehicle Application project. This locomotive was identified as having significant historical value by the Nevada State Railroad Museum in Boulder City, Nevada, where it will be used as a display piece. A substantial effort to characterize the radiological conditions of the locomotive was undertaken by the NTS Management and Operations Contractor, National Security Technologies, LLC (NSTec). During this characterization process, seven small areas on the locomotive had contamination levels that exceeded the NTS release criteria (limits consistent with U.S. Department of Energy [DOE] Order DOE O 5400.5, “Radiation Protection of the Public and the Environment”). The decision was made to perform radiological decontamination of these known accessible impacted areas to further the release process. On February 9, 2010, NSTec personnel completed decontamination of these seven areas to within the NTS release criteria. Although all accessible areas of the locomotive had been successfully decontaminated to within NTS release criteria, it was plausible that inaccessible areas of the locomotive (i.e., those areas on the locomotive where it was not possible to perform radiological surveys) could potentially have contamination above unrestricted release limits. To access the majority of these inaccessible areas, the locomotive would have to be disassembled. A complete disassembly for a full radiological survey could have permanently destroyed parts and would have ruined the historical value of the locomotive. Complete disassembly would also add an unreasonable financial burden for the contractor. A decision was reached between the NTS regulator and NSTec, opting for alternative authorized limits from DOE Headquarters. In doing so, NSTec personnel performed a dose model using the DOE-approved modeling code RESRAD-BUILD v3.5 to evaluate scenarios. The parameters used in the dose model were conservative. NSTec’s Radiological Engineering Calculation, REC-2010-001, “Public Dose Estimate from the EMAD 25 Ton Locomotive,” concluded that the four scenarios evaluated were below the 25-millirem per year limit, the “likely” dose scenarios met the “few millirem in a year” criteria, and that the EMAD 25-ton locomotive met the radiological requirements to be released with residual radioactivity to the public.

Jeremy Gwin and Douglas Frenette

2010-04-08T23:59:59.000Z

184

SOLERAS - Solar Cooling Engineering Field Tests Project: Arizona State University. Prototype carrier 10 ton air-cooled solar absorption chiller. Final evaluation report  

DOE Green Energy (OSTI)

A prototype air-cooled 10 ton solar absorption chiller was disassembled and inspected after having been field-tested for three consecutive cooling seasons. Included in the inspection were some flow visualization experiments which revealed some problems in the absorber header design. The objectives of this evaluation project were to determine possible causes for the frequent crystallization and generally below-design performance of the chiller during the testing period. The major conclusions reached were that a combination of leaks and of poor (50%) flow distribution in the absorber could account for most of the chiller's poor performance.

Not Available

1982-01-01T23:59:59.000Z

185

On DC. optimization algorithms for solving minmax flow problems ?  

E-Print Network (OSTI)

Jun 17, 2011 ... Email: ldmuu@math.ac.vn. Le Quang Thuy ..... programming and DCA revisited with DC models of real world nonconvex optimization problems ...

186

On DC. optimization algorithms for solving minmax flow problems  

E-Print Network (OSTI)

Jun 16, 2011 ... math.ac.vn) ... (Difference of convex functions) programming and DCA revisited with DC models of real world nonconvex optimization problems, ...

187

UNITED STATES OFFICE OF PERSONNEL MANAGEMENT Washington, DC  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

OFFICE OF PERSONNEL MANAGEMENT Washington, DC 20415 The Director November 8, 2010 MEMORANDUM FOR HEADS OF DEPARTMENTS AND AGENCIES FROM: JOHN BERRY ( . .. (t"t-.. DIRECTOR...

188

Simultaneous distribution of AC and DC power - Energy ...  

... Alternating Current) as well as the elimination of equipment normally used to reconvert AC back to DC for components of HVAC systems, ...

189

DC Hazardous Waste Management (District of Columbia) | Open Energy...  

Open Energy Info (EERE)

District of Columbia Applies to Municipality District of Columbia Name DC Hazardous Waste Management (District of Columbia) Policy Type Environmental Regulations Affected...

190

Calibrated Broadband DC-Coupled High Impedance Pickoff ...  

Craig E. Deibele, Brian Link, and Vladimir V. Peplov, Calibrated Broadband DC-Coupled High Impedance Pickoff Circuit for Remote Monitoring

191

AC vs DC Wizard Version 1.0  

Science Conference Proceedings (OSTI)

AC vs DC Wizard compares the use of HVDC to HVAC in both new and existing overhead lines and in new underground cable ...

2012-12-04T23:59:59.000Z

192

DC Resistivity Survey (Gradient Array) | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: DC Resistivity Survey (Gradient Array) edit Details Activities (0) Areas (0) Regions (0)...

193

Exploring the Raft River geothermal area, Idaho, with the dc...  

Open Energy Info (EERE)

Home Journal Article: Exploring the Raft River geothermal area, Idaho, with the dc resistivity method (Abstract) edit Details Activities (1) Areas (1) Regions (0)...

194

DC Resistivity Survey (Schlumberger Array) At Raft River Geothermal...  

Open Energy Info (EERE)

Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon DC Resistivity Survey (Schlumberger Array) At Raft River Geothermal Area (1974-1975) Jump...

195

DOE Solar Decathlon: Team Capitol DC: The Catholic University...  

NLE Websites -- All DOE Office Websites (Extended Search)

Capitol DC: The Catholic University of America, George Washington University, and American University Team website: www.teamcapitoldc.org Photo of members of the Catholic...

196

Microsoft PowerPoint - NETL Pittsburgh, PA to Washington, DC...  

NLE Websites -- All DOE Office Websites (Extended Search)

PA. 2. Merge RIGHT via Exit 161 onto I-70 EAST toward BREEZEWOODUS-30 BALTIMOREWASHINGTON, DC (follow US-30 through Breezewood). , ( g ) 3. At FREDERICKSBURG, merge...

197

Embassy of Cuba in Washington, DC: Image, Site, Program.  

E-Print Network (OSTI)

??This thesis postulates the design of an official Embassy of Cuba in Washington, DC, following the resumption of diplomatic relations between the two countries. An… (more)

Fishman, Ian C

2008-01-01T23:59:59.000Z

198

Washington DC Reliability Requirements and the Need to Operate...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Washington DC Reliability Requirements and the Need to Operate Mirant's Potomac River Generation Station to Support Local Area Reliability (Oak Ridge National Laboratory 2005)...

199

Participatory Music Making and Affinity in Washington, DC Irish Sessions.  

E-Print Network (OSTI)

??The Washington, DC metropolitan area hosts a vibrant Irish music scene. Like those in many Irish sessions found throughout the world, the District's network of… (more)

Flynn, Erin Michele

2011-01-01T23:59:59.000Z

200

Communications: NREL Letterhead Template for DC General Use ...  

What NREL technology (ies) are you interested in? What type of license ... Communications: NREL Letterhead Template for DC General Use - Black and White

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Communications: NREL Letterhead Template for DC General Use ...  

What NREL technology are you interested in? Why? 2. ... Communications: NREL Letterhead Template for DC General Use - Black and White Subject:

202

National Press Club Washington, D.C.  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Is the Energy Race our new Is the Energy Race our new "Sputnik" Moment? National Press Club Washington, D.C. 29 November, 2010 1 October 4, 1957, the Soviet Union placed a 184 pound satellite into orbit. "The Soviet Union now has - in the combined category of scientists and engineers - a greater number than the United States. And it is producing graduates in these fields at a much faster rate ... This trend is disturbing. Indeed, according to my scientific advisers, this is for the American people the most critical problem of all. My scientific advisers place this problem above all other immediate tasks of producing missiles, of developing new techniques in the Armed Services. We need scientists in the ten years ahead..." On November 13, 1957, President Eisenhower

203

Department.,of Energy Washington; DC'  

Office of Legacy Management (LM)

,of Energy ,of Energy Washington; DC' 20585 JAN 1 1 1995 / .,, .- L ., The Honorable Thomas Menino ', 1 City Hall Square Boston, Massachusetts 02201 ,'. " p' ifi.. ' . .' b I,' \ Dear.Mayor.Me$ino: DOE's Formerly Util,ized for identification of sites.used by*DOEfs predecessor' agencies, determining, their current radiological condition and, where it has authority, performing remedial action to cleanup sites to meet current radiologicalprotection requirements.~ A conservative set of.technical evaluation guidelines4s used in these investigat~ions' toTassure protection of public health, safety and the .environment. Where DOE does not have authority.for proceeding, the available site information is forwarded to the appropriate Federal or State Agency,. DOE studied the historical records of the former ,Tracerlab, Inc. sitei'and it

204

Dissipative Cryogenic Filters with Zero DC Resistance  

SciTech Connect

The authors designed, implemented and tested cryogenic RF filters with zero DC resistance, based on wires with a superconducting core inside a resistive sheath. The superconducting core allows low frequency currents to pass with negligible dissipation. Signals above the cutoff frequency are dissipated in the resistive part due to their small skin depth. The filters consist of twisted wire pairs shielded with copper tape. Above approximately 1 GHz, the attenuation is exponential in {radical}{omega}, as typical for skin depth based RF filters. By using additional capacitors of 10 nF per line, an attenuation of at least 45 dB above 10 MHz can be obtained. Thus, one single filter stage kept at mixing chamber temperature in a dilution refrigerator is sufficient to attenuate room temperature black body radiation to levels corresponding to 10 mK above about 10 MHz.

Bluhm, Hendrik; Moler, Kathryn A.; /Stanford U., Appl. Phys. Dept

2008-04-22T23:59:59.000Z

205

Development of a Novel Bi-Directional Isolated Multiple-Input DC-DC Converter  

DOE Green Energy (OSTI)

There is vital need for a compact, lightweight, and efficient energy-storage system that is both affordable and has an acceptable cycle life for the large-scale production of electric vehicles (EVs) and hybrid electric vehicles (HEVs). Most of the current research employs a battery-storage unit (BU) combined with a fuel cell (FC) stack in order to achieve the operating voltage-current point of maximum efficiency for the FC system. A system block diagram is shown in Fig.1.1. In such a conventional arrangement, the battery is sized to deliver the difference between the energy required by the traction drive and the energy supplied by the FC system. Energy requirements can increase depending on the drive cycle over which the vehicle is expected to operate. Peak-power transients result in an increase of losses and elevated temperatures which result in a decrease in the lifetime of the battery. This research will propose a novel two-input direct current (dc) dc to dc converter to interface an additional energy-storage element, an ultracapacitor (UC), which is shown in Fig.1.2. It will assist the battery during transients to reduce the peak-power requirements of the battery.

Li, H.

2005-10-24T23:59:59.000Z

206

Read-out electronics for DC squid magnetic measurements  

DOE Patents (OSTI)

Read-out electronics for DC SQUID sensor systems, the read-out electronics incorporating low Johnson noise radio-frequency flux-locked loop circuitry and digital signal processing algorithms in order to improve upon the prior art by a factor of at least ten, thereby alleviating problems caused by magnetic interference when operating DC SQUID sensor systems in magnetically unshielded environments.

Ganther, Jr., Kenneth R. (Olathe, KS); Snapp, Lowell D. (Independence, MO)

2002-01-01T23:59:59.000Z

207

Dynamic microscopic theory of fusion using DC-TDHF  

Science Conference Proceedings (OSTI)

The density-constrained time-dependent Hartree-Fock (DC-TDHF) theory is a fully microscopic approach for calculating heavy-ion interaction potentials and fusion cross sections below and above the fusion barrier. We discuss recent applications of DC-TDHF method to fusion of light and heavy systems.

Umar, A. S.; Oberacker, V. E.; Keser, R.; Maruhn, J. A.; Reinhard, P.-G. [Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States); RTE University, Science and Arts Faculty, Department of Physics, 53100, Rize (Turkey); Institut fuer Theoretische Physik, Goethe-Universitaet, D-60438 Frankfurt am Main (Germany); Institut fur Theoretische Physik, Universitat Erlangen, D-91054 Erlangen (Germany)

2012-10-20T23:59:59.000Z

208

Historical Material Analysis of DC745U Pressure Pads  

SciTech Connect

As part of the Enhance Surveillance mission, it is the goal to provide suitable lifetime assessment of stockpile materials. This report is an accumulation of historical publication on the DC745U material and their findings. It is the intention that the B61 LEP program uses this collection of data to further develop their understanding and potential areas of study. DC745U is a commercially available silicone elastomer consisting of dimethyl, methyl-phenyl, and methyl-vinyl siloxane repeat units. Originally, this material was manufactured by Dow Corning as Silastic{reg_sign} DC745U at their manufacturing facility in Kendallville, IN. Recently, Dow Corning shifted this material to the Xiameter{reg_sign} brand product line. Currently, DC745U is available through Xiameter{reg_sign} or Dow Corning's distributor R. D. Abbott Company. DC745U is cured using 0.5 wt% vinyl-specific peroxide curing agent known as Luperox 101 or Varox DBPH-50. This silicone elastomer is used in numerous parts, including two major components (outer pressure pads and aft cap support) in the W80 and as pressure pads on the B61. DC745U is a proprietary formulation, thus Dow Corning provides limited information on its composition and properties. Based on past experience with Dow Corning, DC745U is at risk of formulation changes without notification to the costumer. A formulation change for DC745U may have a significant impact because the network structure is a key variable in determining material properties. The purpose of this report is to provide an overview of historical DC745U studies and identify gaps that need to be addressed in future work. Some of the previous studies include the following: 1. Spectroscopic characterization of raw gum stock. 2. Spectroscopic, thermal, and mechanical studies on cured DC745U. 3. Nuclear Magnetic Resonance (NMR) and solvent swelling studies on DC745U with different crosslink densities. 4. NMR, solvent swelling, thermal, and mechanical studies on thermally aged DC745U. 5. NMR, solvent swelling, thermal, and mechanical studies on radiolytically aged DC745U. Each area is reviewed and further work is suggested to improve our understanding of DC745U for systems engineering, surveillance, aging assessments, and lifetime assessment.

Ortiz-Acosta, Denisse [Los Alamos National Laboratory

2012-07-30T23:59:59.000Z

209

Definition: DC Resistivity Survey (Dipole-Dipole Array) | Open Energy  

Open Energy Info (EERE)

DC Resistivity Survey (Dipole-Dipole Array) DC Resistivity Survey (Dipole-Dipole Array) Jump to: navigation, search Dictionary.png DC Resistivity Survey (Dipole-Dipole Array) The Dipole-Dipole array is a type of electrode configuration for a Direct-Current Resistivity Survey and is defined by its electrode array geometry.[1] View on Wikipedia Wikipedia Definition References ↑ http://appliedgeophysics.berkeley.edu/dc/EM46.pdf Ret LikeLike UnlikeLike You like this.Sign Up to see what your friends like. rieved from "http://en.openei.org/w/index.php?title=Definition:DC_Resistivity_Survey_(Dipole-Dipole_Array)&oldid=596974" Category: Definitions What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load)

210

Energy Recovery from High-frequency Clocks using DC-DC Converters M. Alimadadi, S. Sheikhaei, G. Lemieux, S. Mirabbasi, W. Dunford, P. Palmer.  

E-Print Network (OSTI)

Energy Recovery from High-frequency Clocks using DC-DC Converters M. Alimadadi, S. Sheikhaei, G Power Supply) PWM Controller PWM clock Rload Figure 1. Recycling clock energy with a DC-DC converter a significant amount of energy to distribute a multi-GHz clock. By discharging the clock network to ground every

Lemieux, Guy

211

Counterrotating brushless dc permanent magnet motor  

DOE Patents (OSTI)

An brushless DC permanent magnet motor is provided for driving an autonomous underwater vehicle. In one embodiment, the motor comprises four substantially flat stators disposed in stacked relationship, with pairs of the stators being axially spaced and each of the stators comprising a tape-wound stator coil; and a first and second substantially flat rotors disposed between the spaced pairs of stators. Each of the rotors includes an annular array of permanent magnets embedded therein. A first shaft is connected to the first rotor and a second, concentric shaft is connected to the second rotor, and drive unit causes rotation of the two shafts in opposite directions. The second shaft comprises a hollow tube having a central bore therein in which the first shaft is disposed. Two different sets of bearings support the first and second shAfts. In another embodiment, the motor comprises two ironless stators and pairs and rotors mounted no opposite sides of the stators and driven by counterrotating shafts.

Hawsey, R.A.; Bailey, J.M.

1990-12-31T23:59:59.000Z

212

Counterrotating brushless dc permanent magnet motor  

DOE Patents (OSTI)

An brushless DC permanent magnet motor is provided for driving an autonomous underwater vehicle. In one embodiment, the motor comprises four substantially flat stators disposed in stacked relationship, with pairs of the stators being axially spaced and each of the stators comprising a tape-wound stator coil; and a first and second substantially flat rotors disposed between the spaced pairs of stators. Each of the rotors includes an annular array of permanent magnets embedded therein. A first shaft is connected to the first rotor and a second, concentric shaft is connected to the second rotor, and drive unit causes rotation of the two shafts in opposite directions. The second shaft comprises a hollow tube having a central bore therein in which the first shaft is disposed. Two different sets of bearings support the first and second shAfts. In another embodiment, the motor comprises two ironless stators and pairs and rotors mounted no opposite sides of the stators and driven by counterrotating shafts.

Hawsey, R.A.; Bailey, J.M.

1990-01-01T23:59:59.000Z

213

Scale-up of mild gasification to be a process development unit mildgas 24 ton/day PDU design report. Final report, November 1991--July 1996  

Science Conference Proceedings (OSTI)

From November 1991 to April 1996, Kerr McGee Coal Corporation (K-M Coal) led a project to develop the Institute of Gas Technology (IGT) Mild Gasification (MILDGAS) process for near-term commercialization. The specific objectives of the program were to: design, construct, and operate a 24-tons/day adiabatic process development unit (PDU) to obtain process performance data suitable for further design scale-up; obtain large batches of coal-derived co-products for industrial evaluation; prepare a detailed design of a demonstration unit; and develop technical and economic plans for commercialization of the MILDGAS process. The project team for the PDU development program consisted of: K-M Coal, IGT, Bechtel Corporation, Southern Illinois University at Carbondale (SIUC), General Motors (GM), Pellet Technology Corporation (PTC), LTV Steel, Armco Steel, Reilly Industries, and Auto Research.

NONE

1996-03-01T23:59:59.000Z

214

Investigations on catalyzed steam gasification of biomass. Appendix A. Feasibility study of methane production via catalytic gasification of 2000 tons of wood per day  

DOE Green Energy (OSTI)

A study has been made of the economic feasibility of producing substitute natural gas (SNG) from wood via catalytic gasification with steam. The plant design in this study was developed from information on gasifier operation supplied by the Pacific Northwest Laboratory (PNL). The plant is designed to process 2000 tons per day of dry wood to SNG. Plant production is 21.6 MM scfd of SNG with a HHV of 956 Btu per scf. All process and support facilities necessary to convert wood to SNG are included. The plant location is Newport, Oregon. The capital cost for the plant is $95,115,000 - September, 1980 basis. Gas production costs which allow for return on capital have been calculated for various wood prices for both utility and private investor financing. For utility financing, the gas production costs are respectively $5.09, $5.56, $6.50, and $8.34 per MM Btu for wood costs of $5, $10, $20, and $40 per dry ton delivered to the plant at a moisture content of 49.50 wt %. For private investor financing, the corresponding product costs are $6.62, $7.11, $8.10, and $10.06 per MM Btu. The cost calculated by the utility financing method includes a return on equity of 15% and an interest rate of 10% on the debt. The private investor financing method, which is 100% equity financing, incorporates a discounted cash flow (DCF) return on equity of 12%. The thermal efficiency without taking an energy credit for by-product char is 58.3%.

Mudge, L.K.; Weber, S.L.; Mitchell, D.H.; Sealock, L.J. Jr.; Robertus, R.J.

1981-01-01T23:59:59.000Z

215

Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings  

E-Print Network (OSTI)

Torchiere Source: [6]. Energy AC-DC Savings Conv.Effand fans unchanged Energy AC-DC Savings Conv.Eff Solar WaterFigure 10. Appliances energy savings versus direct-DC energy

Garbesi, Karina

2012-01-01T23:59:59.000Z

216

Application to Export Electric Energy OE Docket No. EA-351 DC...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1 DC Energy Dakota, LLC Application to Export Electric Energy OE Docket No. EA-351 DC Energy Dakota, LLC Application from DC Energy Dakota, LLC to export electric energy to Canada...

217

News From the D.C. Office: Energy-Saving Office Equipment, Part...  

NLE Websites -- All DOE Office Websites (Extended Search)

Aerial view of Washington D.C. News From the D.C. Office Energy-Saving Office Equipment, Part 1 More on the DC Office efficiency up-grade: Lighting, Office Equipment: Part 2...

218

Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings  

E-Print Network (OSTI)

brushless DC permanent magnet motor EV electric vehicle BtuBrushless DC permanent magnet motors can save 5-15% of theBrushless DC permanent magnet motor; VSD: Variable-speed

Garbesi, Karina

2012-01-01T23:59:59.000Z

219

DC Resistivity Survey (Dipole-Dipole Array) | Open Energy Information  

Open Energy Info (EERE)

DC Resistivity Survey (Dipole-Dipole Array) DC Resistivity Survey (Dipole-Dipole Array) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: DC Resistivity Survey (Dipole-Dipole Array) Details Activities (1) Areas (1) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electrical Profiling Configurations Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature

220

DC Hazardous Waste Management (District of Columbia) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DC Hazardous Waste Management (District of Columbia) DC Hazardous Waste Management (District of Columbia) DC Hazardous Waste Management (District of Columbia) < Back Eligibility Utility Fed. Government Commercial Agricultural Investor-Owned Utility State/Provincial Govt Industrial Construction Municipal/Public Utility Local Government Residential Installer/Contractor Rural Electric Cooperative Tribal Government Low-Income Residential Schools Retail Supplier Institutional Multi-Family Residential Systems Integrator Fuel Distributor Nonprofit General Public/Consumer Transportation Program Info State District of Columbia Program Type Environmental Regulations Provider District Department of the Environment This regulation regulates the generation, storage, transportation, treatment, and disposal of hazardous waste, and wherever feasible, reduces

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Experimental power reactor dc generator energy storage study  

DOE Green Energy (OSTI)

This study covers the use of dc generators for meeting the Experimental Power Reactor Ohmic Heating Energy Storage Requirements. The dc generators satisfy these requirements which are the same as defined in WFPS-TME-038 which covered the use of ac generators and homopolar generators. The costs of the latter two systems have been revised to eliminate first-of-a-kind factors. The cost figures for dc generators indicate a need to develop larger machines in order to take advantage of the economy-of-scale that the large ac machines have. Each of the systems has its own favorable salient features on which to base a system selection.

Heck, F.M.; Smeltzer, G.S.; Myers, E.H.; Kilgore, L.

1978-08-25T23:59:59.000Z

222

We Have a Winner - DC High School Regional Science Bowl Competition...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

We Have a Winner - DC High School Regional Science Bowl Competition Held Last Saturday We Have a Winner - DC High School Regional Science Bowl Competition Held Last Saturday...

223

DC Regional Middle School Science Bowl | U.S. DOE Office of Science...  

Office of Science (SC) Website

Washington DC Regions DC Regional Middle School Science Bowl National Science Bowl (NSB) NSB Home About High School Middle School Middle School Students Middle School Coaches...

224

Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings  

E-Print Network (OSTI)

The Feasibility of Small-Scale Residential DC Distributionof a DC microgrid for residential houses. In Transmission &energy storage with PV for residential and commercial use.

Garbesi, Karina

2012-01-01T23:59:59.000Z

225

A Multiphase, Modular, Bidirectional, Triple-Voltage DC-DC Converter Power Systems  

Science Conference Proceedings (OSTI)

Electrical power systems in future hybrid and fuel cell vehicles may employ three voltage [14 V, 42 V, and high voltage (HV)] nets. These will be necessary to accommodate existing 14-V loads as well as efficiently handle new heavy loads at the 42-V net and a traction drive on the HV bus. A low-cost DC-DC converter was proposed for connecting the three voltage nets. It minimizes the number of switches and their associated gate driver components by using two half-bridges and a high-frequency transformer. Another salient feature is that the half bridge on the 42-V bus is also utilized to provide the 14-V bus by operating at duty ratios around an atypical value of 1/3. Moreover, it makes use of the parasitic capacitance of the switches and the transformer leakage inductance for soft switching. The use of half bridges makes the topology well suited for interleaved multiphase modular configurations as a means to increase the power level because the capacitor legs can be shared. This paper presents simulation and experimental results on an interleaved two-phase arrangement rated at 4.5 kW. Also discussed are the benefits of operating with an atypical duty ratio on the transformer and a preferred multiphase configuration to minimize capacitor ripple currents.

Su, Gui-Jia [ORNL; Tang, Lixin [ORNL

2008-01-01T23:59:59.000Z

226

Fault Detection and Isolation in Low-Voltage DC Distribution ...  

A University of Colorado research team led by Jae-Do Park has developed a fault detection and isolation scheme for a low-voltage DC-bus microgrid system, ...

227

Washington DC Reliability Requirements and the Need to Operate Mirant's  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Washington DC Reliability Requirements and the Need to Operate Washington DC Reliability Requirements and the Need to Operate Mirant's Potomac River Generation Station to Support Local Area Reliability (Oak Ridge National Laboratory 2005) Washington DC Reliability Requirements and the Need to Operate Mirant's Potomac River Generation Station to Support Local Area Reliability (Oak Ridge National Laboratory 2005) Pursuant to Docket No. EO-05-01: Oak Ridge National Laboratory provided an analysis of the Mirant Potomac River Generation Station in 2005 and discussed the reliability requirements of the local area and the potential impacts on reliability of changing operation of the Potomac River Generating Station in this paper. Washington DC Reliability Requirements and the Need to Operate Mirant's Potomac River Generation Station to Support Local Area Reliability.pdf

228

Categorical Exclusion Determinations: Washington, D.C. | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Washington, D.C. Washington, D.C. Categorical Exclusion Determinations: Washington, D.C. Location Categorical Exclusion Determinations issued for actions in Washington, D.C. DOCUMENTS AVAILABLE FOR DOWNLOAD June 11, 2013 CX-010460: Categorical Exclusion Determination Novel Low Cost Environmentally Friendly Synthetic Approaches toward Core-Shell Structured Micro CX(s) Applied: B3.6 Date: 06/11/2013 Location(s): District of Columbia Offices(s): National Energy Technology Laboratory March 28, 2013 CX-010567: Categorical Exclusion Determination Lawrence Berkeley National Laboratory - Rapid Automated Modeling and Simulation of Existing Buildings for Energy Efficiency CX(s) Applied: B3.6 Date: 02/28/2013 Location(s): California, District of Columbia Offices(s): Advanced Research Projects Agency-Energy

229

Microsoft PowerPoint - NETL Morgantown, WV to Washington, DC...  

NLE Websites -- All DOE Office Websites (Extended Search)

Morgantown, WV Site to Washington, DC Headquarters 1. Take I-68 EAST toward CUMBERLAND, MD. 2 M t I 70 EASTUS 40 EUS 522 S E it EXIT 82AB t d HAGERSTOWN 2. Merge onto I-70 EAST...

230

Microsoft PowerPoint - Washington, DC to NETL Pittsburgh Directions...  

NLE Websites -- All DOE Office Websites (Extended Search)

Pittsburgh, PA Site 1. Leave WASHINGTON, DC on I-270 NORTH. 2. Take the I-70 WEST exit toward HAGERSTOWN. Merge onto I-70 WEST. 3. At HANCOCK, MD exit RIGHT onto I-70 WEST I-76...

231

Microsoft PowerPoint - NETL Pittsburgh, PA to Washington, DC...  

NLE Websites -- All DOE Office Websites (Extended Search)

Washington, DC Headquarters 1. COCHRANS MILL RD. becomes BROWNSVILLE RD. 2. Stay STRAIGHT to go onto CURRY HOLLOW RDYELLOW BELT. 3 T k th PA 51 SOUTH t d CLAIRTON 3. Take the...

232

Local Economic Investment and Crime: Neighborhood Change in Washington, DC.  

E-Print Network (OSTI)

??The purpose of this analysis is to shed light on the relationship between large-scale economic investment and crime in Washington, DC neighborhood clusters (N=39) from… (more)

Matsuda, Mauri

2009-01-01T23:59:59.000Z

233

EETD Researchers Contribute to Efficient DC-Power Data Center...  

NLE Websites -- All DOE Office Websites (Extended Search)

(Calit2) at UC San Diego is operating a set of servers in a campus data center on 380-volt DC (direct current) power. The new modular data center on campus has sensors and other...

234

Halbach array DC motor/generator - Energy Innovation Portal  

A new configuration of DC motor/generator is based on a Halbach array of permanent magnets. This motor does not use ferrous materials so that the only losses are ...

235

Production EVSE Fact Sheet: DC Fast Charger: Hasetec  

NLE Websites -- All DOE Office Websites (Extended Search)

38 x 69 x 21 Charge level DC Fast Charge Input voltage 480 VAC - 3 Phase Isolation Transformer 1 75 kVA Maximum input current 2 120 Amp Test Conditions Test date 10232012...

236

Properties of dc magnetron reactively sputtered TiN  

Science Conference Proceedings (OSTI)

Titanium nitride is of interest for IC fabrication because of its excellent performance as a metallic diffusion barrier. TiN films have been deposited in a batch sputtering system equipped with dc magnetron cathodes

Jim Stimmell

1986-01-01T23:59:59.000Z

237

Anisotropy and Forming Limit Diagram Comparison of DC and CC ...  

Science Conference Proceedings (OSTI)

Presentation Title, Anisotropy and Forming Limit Diagram Comparison of DC and CC ... Advanced Experimental Grid Pattern Techniques Coupled with FE-analysis ... Effect of Exploitation Overhead Power Lines on the Evolution of Mechanical ...

238

Energy Storage for DC Fast Chargers Development and Demonstration...  

NLE Websites -- All DOE Office Websites (Extended Search)

INLEXT-13-28684 Energy Storage for DC Fast Chargers Development and Demonstration of Operating Protocols for 20-kWh and 200-kWh Field Sites Russell Newnham a Sally (Xiaolei) Sun a...

239

Radiofrequency amplifier based on a dc superconducting quantum interference device  

DOE Patents (OSTI)

A low noise radiofrequency amplifer, using a dc SQUID (superconducting quantum interference device) as the input amplifying element. The dc SQUID and an input coil are maintained at superconductivity temperatures in a superconducting shield, with the input coil inductively coupled to the superconducting ring of the dc SQUID. A radiofrequency signal from outside the shield is applied to the input coil, and an amplified radiofrequency signal is developed across the dc SQUID ring and transmitted to exteriorly of the shield. A power gain of 19.5 +- 0.5 dB has been achieved with a noise temperature of 1.0 +- 0.4 K at a frequency of 100 MHz.

Hilbert, C.; Martinis, J.M.; Clarke, J.

1984-04-27T23:59:59.000Z

240

Radiofrequency amplifier based on a dc superconducting quantum interference device  

DOE Patents (OSTI)

A low noise radiofrequency amplifier (10), using a dc SQUID (superconducting quantum interference device) as the input amplifying element. The dc SQUID (11) and an input coil (12) are maintained at superconductivity temperatures in a superconducting shield (13), with the input coil (12) inductively coupled to the superconducting ring (17) of the dc SQUID (11). A radiofrequency signal from outside the shield (13) is applied to the input coil (12), and an amplified radiofrequency signal is developed across the dc SQUID ring (17) and transmitted to exteriorly of the shield (13). A power gain of 19.5.+-.0.5 dB has been achieved with a noise temperature of 1.0.+-.0.4 K. at a frequency of 100 MHz.

Hilbert, Claude (Berkeley, CA); Martinis, John M. (Berkeley, CA); Clarke, John (Berkeley, CA)

1986-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

DC Resistivity Survey (Schlumberger Array) At Coso Geothermal Area (1977) |  

Open Energy Info (EERE)

DC Resistivity Survey (Schlumberger Array) At Coso DC Resistivity Survey (Schlumberger Array) At Coso Geothermal Area (1977) Exploration Activity Details Location Coso Geothermal Area Exploration Technique DC Resistivity Survey (Schlumberger Array) Activity Date 1977 Usefulness not indicated DOE-funding Unknown Exploration Basis To investigate electrical properties of rocks associated with thermal phenomena of the Devil's Kitchen-Coso Hot Springs area Notes 18 USGS Schlumberger soundings and 6 Schlumberger soundings by Furgerson (1973) were plotted and automatically processed and interpreted References Jackson, D.B. ODonnell, J.E.; Gregory, D. I. (1 January 1977) Schlumberger soundings, audio-magnetotelluric soundings and telluric mapping in and around the Coso Range, California Retrieved from "http://en.openei.org/w/index.php?title=DC_Resistivity_Survey_(Schlumberger_Array)_At_Coso_Geothermal_Area_(1977)&oldid=591389

242

Saving Tons at the Register  

NLE Websites -- All DOE Office Websites (Extended Search)

Brown, and Max H. Sherman Conference Name Proceedings of the 1998 ACEEE Summer Study on Energy Effciency in Buildings, Pacific Grove, CA Volume 1 Pagination 367-383 Publisher...

243

DC Drive Ride-Through Technology Alternatives and Development  

Science Conference Proceedings (OSTI)

Adjustable speed drive (ASD) ride-through issues have caused increased concerns due to drive susceptibility to power disturbances and the costly results of process disruptions. Losses incurred due to DC drive trips can be avoided for critical production processes by employing ride-through alternatives. The purpose of this study is to determine the DC drive ride-through requirements of industrial customers and match those ride-through needs with possible solutions.

1998-12-19T23:59:59.000Z

244

Effect of DC Load Currents on Solid State Residential Meters  

Science Conference Proceedings (OSTI)

This report presents results of an extensive laboratory assessment of the impact of DC load currents (including half-wave rectified loads) on the metrological accuracy of residential solid state electricity meters. Sampled surveys were conducted to determine whether products producing DC currents are prevalent in residential premises. In addition, regulations and codes were studied to determine whether such products could naturally appear in the marketplace going forward. Two each of six brands of socket...

2011-12-22T23:59:59.000Z

245

DOE - Office of Legacy Management -- National Bureau of Standards - DC 01  

Office of Legacy Management (LM)

Bureau of Standards - DC Bureau of Standards - DC 01 FUSRAP Considered Sites Site: NATIONAL BUREAU OF STANDARDS (DC.01) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Van Ness Street , Washington , D.C. DC.01-1 Evaluation Year: 1987 DC.01-2 DC.01-3 Site Operations: Performed quality analysis lab work for the MED during the 1940s; decontamination efforts were completed in 1952 and the building was demolished in 1976 DC.01-3 Site Disposition: Eliminated - Radiation levels Below criteria DC.01-1 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Radium DC.01-4 Radiological Survey(s): Yes DC.01-1 Site Status: Eliminated from consideration under FUSRAP Also see Documents Related to NATIONAL BUREAU OF STANDARDS

246

From MC/DC to RC/DC: formalization and analysis of control-flow testing criteria  

Science Conference Proceedings (OSTI)

This chapter describes an approach to the formalization of existing criteria used in computer systems software testing and proposes a Reinforced Condition/Decision Coverage (RC/DC) criterion. This criterion has been developed from the well-known Modified ...

Sergiy A. Vilkomir; Jonathan P. Bowen

2008-01-01T23:59:59.000Z

247

Enhancement of AC/DC system performance by modulation of a proposed multiterminal DC system in the Southwestern U. S  

SciTech Connect

Modulation of power transmitted over a proposed multiterminal dc system to provide effective stability enhancement of a large ac system in the Southwestern U.S. is demonstrated in this paper. This proposed multiterminal dc system connecting the Phoenix, Mead and Los Angeles areas could be in parallel with an Extra High-Voltage (EHV) ac transmission network which could be operating at heavy loading conditions. Studies indicated that the utilization of large power and reactive power modulation on the dc system can provide transient stability enhancements and ac system damping. The resultant system damping can be significantly improved when compared to the performance of the ac system prior to the addition of the dc system. The application of modulation permits the release of converter station vars to support the ac system voltage and thus reduces the required capability of voltage support devices.

Lee, R.L.; Zollman, D.; Tang, J.F.; Hsu, J.C.; Hunt, J.R.; Burton, R.S.; Fletcher, D.E.

1986-01-01T23:59:59.000Z

248

Data:Eec988f9-dc0d-45ef-9789-a7781dc1934b | Open Energy Information  

Open Energy Info (EERE)

f9-dc0d-45ef-9789-a7781dc1934b f9-dc0d-45ef-9789-a7781dc1934b No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: El Paso Electric Co (New Mexico) Effective date: 2010/01/01 End date if known: Rate name: LGS (Large General Service Secondary) Sector: Commercial Description: This rate is available to all Customers for lighting,power, and heating service. All service will be taken at one point of delivery designated by the Company and at one of the Company's standard types of service. Service under this rate shall be limited to Customers whose expected monthly demand will exceed 800 kilowatts (kW).

249

A Low-Cost Soft-Switched DC/DC Converter for Solid-Oxide Fuel Cells  

DOE Green Energy (OSTI)

A highly efficient DC to DC converter has been developed for low-voltage high-current solid oxide fuel cells. The newly developed 'V6' converter resembles what has been done in internal combustion engine that split into multiple cylinders to increase the output capacity without having to increase individual cell size and to smooth out the torque with interleaving operation. The development was started with topology overview to ensure that all the DC to DC converter circuits were included in the study. Efficiency models for different circuit topologies were established, and computer simulations were performed to determine the best candidate converter circuit. Through design optimization including topology selection, device selection, magnetic component design, thermal design, and digital controller design, a bench prototype rated 5-kW, with 20 to 50V input and 200/400V output was fabricated and tested. Efficiency goal of 97% was proven achievable through hardware experiment. This DC to DC converter was then modified in the later stage to converter 35 to 63 V input and 13.8 V output for automotive charging applications. The complete prototype was tested at Delphi with their solid oxide fuel cell test stand to verify the performance of the modified DC to DC converter. The output was tested up to 3-kW level, and the efficiency exceeded 97.5%. Multiple-phase interleaving operation design was proved to be reliable and ripple free at the output, which is desirable for the battery charging. Overall this is a very successful collaboration project between the SECA Core Technology Team and Industrial Team.

Jason Lai

2009-03-03T23:59:59.000Z

250

A frequency domain model for 3 kV dc traction dc-side resonance identification  

SciTech Connect

Frequency-dependent effects in railway traction power systems arise from the impedance of substation and locomotive line filters and the traction line. Harmonic noise from traction drives and substations can excite resonances and produce overcurrent or overvoltage conditions at critical points in the network. In this paper, the harmonic feeding impedances of a 3 kV DC traction system seen from the rectifier substation, locomotive drive converter and pantograph terminals are presented. Several substation and locomotive filters are considered with a frequency-dependent traction line. Resonances attributed to the substation filter, locomotive filter and traction line are separate and distinct, the line introducing poles and zeros in the audio frequency (AF) range which vary in frequency and magnitude with locomotive position.

Hill, R.J. [Univ. of Bath (United Kingdom). School of Electronic and Electrical Engineering; Fracchia, M.; Pozzobon, P.; Sciutto, G. [Univ. degli Studi di Genova (Italy). Dipt. di Ingegneria Elettrica

1995-08-01T23:59:59.000Z

251

Randomized PWM for conductive EMI reduction in DC-DC choppers  

E-Print Network (OSTI)

In this paper, a comparative investigation of different random modulation schemes against the normal pulsewidth modulation (PWM) for the DC motor drive with step-down chopper (buck) and half-bridge configuration is presented. For this purpose, an experimental setup with DSP2 board has been developed. The board consists of the signal processor TMS320C32 which is suitable for verifying the different modulations strategies. The effectiveness of randomization on spreading the dominating frequencies that normally exist in constantfrequency PWM schemes is evaluated by the power spectral density (PSD) estimations in the low-frequency range. Finally, one universal demo board with two power converters configuration (driven by the micro controller PICF16F876) has been used in EMI measurements to comply with the CISPR 25 (or EN 55025) regulations. 1

Franc Mihali?; Dejan Kos

2005-01-01T23:59:59.000Z

252

Multi-port DC-DC Power Converter for Renewable Energy Application  

E-Print Network (OSTI)

In recent years, there has been lots of emphasis put on the development of renewable energy. While considerable improvement on renewable energy has been made, there are some inherent limitations for these renewable energies. For example, for solar and wind power, there is an intermittent nature. For the fuel cell, the dynamics of electro-chemical reaction is quite slow compared to the electric load. This will not be acceptable for modern electric application, which requires constant voltage of constant frequency. This work proposed and evaluated a new power circuit that can deal with the problem of the intermittent nature and slow response of the renewable energy. The proposed circuit integrates different renewable energy sources as well as energy storage. By integrating renewable energy sources with statistical tendency to compensate each other, the effect of the intermittent nature can be greatly reduced. This integration will increase the reliability and utilization of the overall system. Moreover, the integration of energy storage solves the problem of the slow response of renewable energy. It can provide the extra energy required by load or absorb the excessive energy provided by the energy sources, greatly improving the dynamics of overall system. To better understand the proposed circuit, "Dual Active Bridge" and "Triple Active Bridge" were reviewed first. The operation principles and the modeling were presented. Analysis and design of the overall system were discussed. Controller design and stability issues were investigated. Furthermore, the function of the central controller was explained. In the end, different simulations were made and discussed. Results from the simulations showed that the proposed multi-port DC-DC power converter had satisfactory performance under different scenarios encountered in practical renewable energy application. The proposed circuit is an effective solution to the problem due to the intermittent nature and slow response of the renewable energy.

Chou, Hung-Ming

2009-08-01T23:59:59.000Z

253

Study on Online Insulation Monitoring System for Working DC Power of Power Plants and Substations  

Science Conference Proceedings (OSTI)

The measurement of insulation resistance between DC power supply and ground is important in a DC operating power supply system. We proved a new model for measuring insulating resistance between ground and DC system. A lots of actual application shows ... Keywords: Insulation resistance, DC power system, Insulation monitor, Leakage current

Yunqing Liu; Xichao Wang

2010-06-01T23:59:59.000Z

254

Q&A: Kristen Psaki of WeatherizeDC | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Q&A: Kristen Psaki of WeatherizeDC Q&A: Kristen Psaki of WeatherizeDC Q&A: Kristen Psaki of WeatherizeDC April 15, 2010 - 3:45pm Addthis Roughly 20 percent of carbon emissions come from inefficient homes. The DC Project says it has found a way to mitigate emissions and create jobs, a winning combination. WeatherizeDC is the non-profit's effort to use a community engagement model to help DC residents find green jobs and live a more energy efficient lifestyle. Energy Empowers recently spoke with DC Project co-founder and creative director Kristen Psaki about WeatherizeDC's approach to climate change. WeatherizeDC is a nonprofit community engagement program. What's the background of it, the story of how and why it was founded? The DC Project was founded over a year ago in January 2009.

255

Q&A: Kristen Psaki of WeatherizeDC | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Q&A: Kristen Psaki of WeatherizeDC Q&A: Kristen Psaki of WeatherizeDC Q&A: Kristen Psaki of WeatherizeDC April 15, 2010 - 3:45pm Addthis Roughly 20 percent of carbon emissions come from inefficient homes. The DC Project says it has found a way to mitigate emissions and create jobs, a winning combination. WeatherizeDC is the non-profit's effort to use a community engagement model to help DC residents find green jobs and live a more energy efficient lifestyle. Energy Empowers recently spoke with DC Project co-founder and creative director Kristen Psaki about WeatherizeDC's approach to climate change. WeatherizeDC is a nonprofit community engagement program. What's the background of it, the story of how and why it was founded? The DC Project was founded over a year ago in January 2009.

256

AC versus DC distribution systems- Did we get it right?  

DOE Green Energy (OSTI)

We presently enjoy a predominantly ac electrical distribution system, the engineering basis for which was designed over 100 years ago. While ac distribution systems have served us well, we should periodically pause to assess what opportunities we have accepted or been denied by the overwhelming predominance of ac electrical power distribution systems. What opportunities could be obtained by engineering dc distribution into at least portions of our present system? What advantages of the present ac distribution system should be recognized and protected? This paper will focus on distribution within premise and low-voltage distribution systems. Specifically, we will address the conversion efficiency costs of adopting various premise ac and dc distribution system topologies. According to a simple predictive model formulated in this paper, premise residential dc distribution will incur unfavorable total conversion efficiency compared with existing ac premise distribution. However, if a residence is supplied by a fuel cell or another dc generator, the total conversion efficiency within a residential dc distribution system could be similar to, or even better than, that for ac distribution.

Hammerstrom, Donald J.

2007-06-28T23:59:59.000Z

257

Argonne TTRDC - TTR Goes to D.C.  

NLE Websites -- All DOE Office Websites (Extended Search)

Argonne's Through-the-Road Hybrid goes to Washington, D.C., Auto Show Argonne's Through-the-Road Hybrid goes to Washington, D.C., Auto Show Argonne's Through the Road Vehicle Argonne's Through-the-Road Hybrid Vehicle Argonne's Through-the-Road hybrid vehicle (TTR) will be on display at the Washington Auto Show at Walter E. Washington Convention Center, February 4-8, 2009, in Washington, D.C. The TTR will be in the combined U.S. Department of Energy, Environmental Protection Agency, and Department of Transportation exhibit booth that features advanced vehicle technologies that are safe, clean, and efficient. Due to power-split limitations, no plug-in hybrid electric vehicle (PHEV) exists that can complete an Urban Dynamometer Driving Schedule (UDDS) cycle without starting the engine. Argonne created the TTR, an in-house PHEV development platform with an open

258

DOE Solar Decathlon: News Blog » Team Capitol DC  

NLE Websites -- All DOE Office Websites (Extended Search)

Capitol DC Capitol DC Below you will find Solar Decathlon news from the Team Capitol DC archive, sorted by date. Hangout With Solar Decathlon 2013 Teams on Sept. 18! Wednesday, September 11, 2013 By Rebecca Matulka Editor's Note: This entry has been cross-posted from DOE's Energy Blog. Photo of a Solar Decathlon house at night. Superimposed is the following text: "Solar Decathlon 2013: The Path to a Brighter Future. Energy.gov/live. Wednesday, Sept. 18, at p.m. ET. #askSD." Mark your calendars for a Google+ Hangout on Solar Decathlon 2013: The Path to a Brighter Future on Wednesday, Sept. 18, at 2 p.m. ET. For more than 10 years, the U.S. Department of Energy Solar Decathlon has been preparing the next wave of energy leaders-providing hands-on experience in designing and building energy-efficient, solar-powered

259

2012 Race to DC | ENERGY STAR Buildings & Plants  

NLE Websites -- All DOE Office Websites (Extended Search)

12 Race to DC 12 Race to DC Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In this section Why you should design to earn the ENERGY STAR Follow EPA's step-by-step process ENERGY STAR Challenge for Architects 2013 Race to Denver 2012 Race to DC 2011 Race to New Orleans 2010 Race to Miami 2009 Race to San Francisco 2008 Race to Boston 2007 Race to San Antonio

260

Energy Department Completes Cool Roof Installation on DC Headquarters  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Completes Cool Roof Installation on DC Completes Cool Roof Installation on DC Headquarters Building to Save Money by Saving Energy Energy Department Completes Cool Roof Installation on DC Headquarters Building to Save Money by Saving Energy December 14, 2010 - 12:00am Addthis Washington - Secretary Steven Chu today announced the completion of a new cool roof installation on the Department of Energy's Headquarters West Building. There was no incremental cost to adding the cool roof as part of the roof replacement project and it will save taxpayers $2,000 every year in building energy costs. Cool roofs use lighter-colored roofing surfaces or special coatings to reflect more of the sun's heat, helping improve building efficiency, reduce cooling costs and offset carbon emissions. The cool roof and increased insulation at the facility were

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
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261

News From the D.C. Office: Efficient Office Equipment  

NLE Websites -- All DOE Office Websites (Extended Search)

3 Aerial view of Washington D.C. 3 Aerial view of Washington D.C. News From the D.C. Office Efficient Office Equipment: Update and a Look Ahead An extended version of this article is available here. We are now well aware of the large amount of energy consumed by "plug-in loads" such as personal computers (PCs) and other office electronics. Office equipment is often cited as the fastest-growing end-use of electricity in the fastest-growing sector of demand (commercial buildings). According to Dataquest figures, world growth of PCs will average 14 to 15 percent per year through 1999. Only ten years ago, office equipment was not even part of the "map" of non-residential energy end-uses. There were virtually no data on office equipment energy use, nor an awareness of the

262

SAIL Venture Partners (Washington DC) | Open Energy Information  

Open Energy Info (EERE)

DC) DC) Name SAIL Venture Partners (Washington DC) Address 2900 S. Quincy St, Suite 375 Place Arlington, Virginia Zip 22206 Product Venture capital fund focusing on clean energy Year founded 2002 Phone number (703) 379-2713 Website http://www.sailvc.com/ Coordinates 38.839975°, -77.087781° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.839975,"lon":-77.087781,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

263

NREL: Energy Analysis - Washington D.C. Office Staff  

NLE Websites -- All DOE Office Websites (Extended Search)

Washington D.C. Office Washington D.C. Office The following SEAC staff are based in our Washington D.C. Office. They support a variety of programs and activities, and often are the liaison between the U.S. Department of Energy and staff based in Golden, Colorado. Team Lead: Margaret Mann (Golden) Administrative Support: JoAnn Weaver (Golden) Thomas Jenkin Austin Brown David J. Feldman Tom Schneider Robert Margolis Kathleen Nawaz Monisha Shah Photo of Austin Brown. Austin Brown Senior Analyst (Strategic Planning) Areas of expertise Crosscutting low-carbon strategies Clean transportation technologies and policies Primary research interests Clean energy research portfolio planning Energy and society Sustainable transportation systems More information on Austin Brown Photo of David J. Feldman

264

SO2907, A Putative TonB-dependent Receptor, Is Involved in Dissimilatory Iron Reduction by Shewanella oneidensis Strain MR-1  

Science Conference Proceedings (OSTI)

Shewanella oneidensis strain MR-1 utilizes soluble and insoluble ferric ions as terminal electron acceptors during anaerobic respiration. The components of respiratory metabolism are localized in the membrane fractions which include the outer membrane and cytoplasmic membrane. Many of the biological components that interact with the various iron forms are proposed to be localized in these membrane fractions. To identify the iron-binding proteins acting either as an iron transporter or as a terminal iron reductase, we used metal-catalyzed oxidation reactions. This system catalyzed the oxidation of amino acids in close proximity to the iron binding site. The carbonyl groups formed from this oxidation can then be labeled with fluoresceinamine (FLNH2). The peptide harboring the FLNH2 can then be proteolytically digested, purified by HPLC and then identified by MALDI-TOF tandem MS. A predominant peptide was identified to be part of SO2907 that encodes a putative TonB-dependent receptor. Compared to wild type (wt), the so2097 gene deletion (?SO2907) mutant has impaired ability to reduce soluble Fe(III), but retains the same ability to respire oxygen or fumarate as the wt. The ?SO2907 mutant was also impacted in reduction of insoluble iron. Iron binding assays using isothermal titration calorimetry and fluorescence tryptophan quenching demonstrated that a truncated form of heterologous-expressed SO2907 that contains the Fe(III) binding site, is capable of binding soluble Fe(III) forms with Kd of approximate 50 ?M. To the best of our knowledge, this is the first report of the physiological role of SO2907 in Fe(III) reduction by MR-1.

Qian, Yufeng; Shi, Liang; Tien, Ming

2011-09-30T23:59:59.000Z

265

Nuclear magnetic resonance experiments with dc SQUID amplifiers  

Science Conference Proceedings (OSTI)

The development and fabrication of dc SQUIDs (Superconducting QUantum Interference Devices) with Nb/Al{sub 2}O{sub 3}/Nb Josephson junctions is described. A theory of the dc SQUID as a radio-frequency amplifier is presented, with an optimization strategy that accounts for the loading and noise contributions of the postamplifier and maximizes the signal-to-noise ratio of the total system. The high sensitivity of the dc SQUID is extended to high field NMR. A dc SQUID is used as a tuned radio-frequency amplifier to detect pulsed nuclear magnetic resonance at 32 MHz from a metal film in a 3.5 Tesla static field. A total system noise temperature of 11 K has been achieved, at a bath temperature of 4.2 K. The minimum number of nuclear Bohr magnetons observable from a free precession signal after a single pulse is about 2 {times} 10{sup 17} in a bandwidth of 25 kHz. In a separate experiment, a dc SQUID is used as a rf amplifier in a NQR experiment to observe a new resonance response mechanism. The net electric polarization of a NaClO{sub 3} crystal due to the precessing electric quadrupole moments of the Cl nuclei is detected at 30 MHz. The sensitivity of NMR and NQR spectrometers using dc SQUID amplifiers is compared to the sensitivity of spectrometers using conventional rf amplifiers. A SQUID-based spectrometer has a voltage sensitivity which is comparable to the best achieved by a FET-based spectrometer, at these temperatures and operating frequencies.

Heaney, M.B. (California Univ., Berkeley, CA (USA). Dept. of Physics Lawrence Berkeley Lab., CA (USA))

1990-11-01T23:59:59.000Z

266

High voltage dc-dc converter with dynamic voltage regulation and decoupling during load-generated arcs  

DOE Patents (OSTI)

A high-power power supply produces a controllable, constant high voltage output under varying and arcing loads. The power supply includes a voltage regulator, an inductor, an inverter for producing a high frequency square wave current of alternating polarity, an improved inverter voltage clamping circuit, a step up transformer, an output rectifier for producing a dc voltage at the output of each module, and a current sensor for sensing output current. The power supply also provides dynamic response to varying loads by controlling the voltage regulator duty cycle and circuitry is provided for sensing incipient arc currents at the output of the power supply to simultaneously decouple the power supply circuitry from the arcing load. The power supply includes a plurality of discrete switching type dc--dc converter modules.

Shimer, Daniel W. (Danville, CA); Lange, Arnold C. (Livermore, CA)

1995-01-01T23:59:59.000Z

267

High voltage dc--dc converter with dynamic voltage regulation and decoupling during load-generated arcs  

DOE Patents (OSTI)

A high-power power supply produces a controllable, constant high voltage output under varying and arcing loads. The power supply includes a voltage regulator, an inductor, an inverter for producing a high frequency square wave current of alternating polarity, an improved inverter voltage clamping circuit, a step up transformer, an output rectifier for producing a dc voltage at the output of each module, and a current sensor for sensing output current. The power supply also provides dynamic response to varying loads by controlling the voltage regulator duty cycle and circuitry is provided for sensing incipient arc currents at the output of the power supply to simultaneously decouple the power supply circuitry from the arcing load. The power supply includes a plurality of discrete switching type dc--dc converter modules. 5 Figs.

Shimer, D.W.; Lange, A.C.

1995-05-23T23:59:59.000Z

268

Performance Evaluation of a Multi-Port DC-DC Current Source Converter for High Power Applications  

E-Print Network (OSTI)

With the ever-growing developments of sustainable energy sources such as fuel cells, photovoltaics, and other distributed generation, the need for a reliable power conversion system that interfaces these sources is in great demand. In order to provide the highest degree of flexibility in a truly distributed network, it is desired to not only interface multiple sources, but to also interface multiple loads. Modern multi-port converters use high frequency transformers to deliver the different power levels, which add to the size and complexity of the system. The different topological variations of the proposed multi-port dc-dc converter have the potential to solve these problems. This thesis proposes a unique dc-dc current source converter for multi-port power conversion. The presented work will explain the proposed multi-port dc-dc converter's operating characteristics, control algorithms, design and a proof of application. The converter will be evaluated to determine its functionality and applicability. Also, it will be shown that our converter has advantages over modern multi-port converters in its ease of scalability from kW to MW, low cost, high power density and adaption to countless combinations of multiple sources. Finally we will present modeling and simulation of the proposed converter using the PSIM software. This research will show that this new converter topology is unstable without feedback control. If the operating point is moved, one of the source ports of the multiport converter becomes unstable and dies off supplying very little or no power to the load while the remaining source port supplies all of the power the load demands. In order to prevent this and add stability to the converter a simple yet unique control method was implemented. This control method allowed for the load power demanded to be shared between the two sources as well as regulate the load voltage about its desired value.

Yancey, Billy Ferrall

2010-05-01T23:59:59.000Z

269

Active dc filter for HVDC system--A test installation in the Konti-Skan DC link at Lindome converter station  

Science Conference Proceedings (OSTI)

The purpose of introducing active dc filters is to meet the more and more stringent requirement from power utilities on limiting telephone interference caused by harmonic currents from HVdc transmission lines, without unnecessarily increasing the cost of HVdc stations. An active dc filter installed in the Konti-Skan HVdc link is described. The active dc filter is connected at the bottom of an existing passive dc filter at the Lindome station. The active dc filter includes optic harmonic current measuring unit, control system, protection and supervision system, PWM power amplifier, high-frequency transformer, surge arrester, and coupling apparatuses. The active dc filter has small physical size and occupies small ground area. The performance of the active dc filter for eliminating the disturbing harmonics is excellent. To achieve comparable results by passive filters would require something like ten times more high voltage equipment.

Zhang, Wenyan; Asplund, G. (ABB Power Systems, Ludvika (Sweden). HVDC Division); Aberg, A. (ABB Corporate Research, Lund (Sweden). Dept. of Man-Machine Communication); Jonsson, U. (Svenska Kraftnaet, Vaellingby (Sweden)); Loeoef, O. (Vattenfall AB, Trollhaettan (Sweden). Region Vaestsverige)

1993-07-01T23:59:59.000Z

270

International Fertilizer Development Center (IFDC) Employment Opportunity in Washington, DC  

E-Print Network (OSTI)

International Fertilizer Development Center (IFDC) Employment Opportunity in Washington, DC Science and Technology Officer - VFRC IFDC has launched the Virtual Fertilizer Research Center (VFRC), a global research, website, other media) 5. Liaison with VFRC BoA Science Committee, IFDC RDD and other technical bodies

Ma, Lena

271

1730 RHODE ISLAND AVENUE, NW WASHINGTON, DC 20036  

E-Print Network (OSTI)

1730 RHODE ISLAND AVENUE, NW SUITE 700 WASHINGTON, DC 20036 WWW.ENERGYRECOVERYCOUNCIL.ORG renewable energy from waste Testimony of Ted Michaels President, Energy Recovery Council Before the Connecticut the reclassification of trash-to-energy facilities as Class 1 renewable energy sources. Chairman Meyer, Chairman Roy

Columbia University

272

Electrostatic coalescence system with independent AC and DC hydrophilic electrodes  

DOE Patents (OSTI)

An improved electrostatic coalescence system is provided in which independent AC and DC hydrophilic electrodes are employed to provide more complete dehydration of an oil emulsion. The AC field is produced between an AC electrode array and the water-oil interface wherein the AC electrode array is positioned parallel to the interface which acts as a grounded electrode. The emulsion is introduced into the AC field in an evenly distributed manner at the interface. The AC field promotes drop-drop and drop-interface coalescence of the water phase in the entering emulsion. The continuous oil phase passes upward through the perforated AC electrode array and enters a strong DC field produced between closely spaced DC electrodes in which small dispersed droplets of water entrained in the continuous phase are removed primarily by collection at hydrophilic DC electrodes. Large droplets of water collected by the electrodes migrate downward through the AC electrode array to the interface. All phase separation mechanisms are utilized to accomplish more complete phase separation.

Hovarongkura, A. David (Arlington, VA); Henry, Jr., Joseph D. (Morgantown, WV)

1981-01-01T23:59:59.000Z

273

Naval Research Laboratory Washington, DC 20375-5320  

E-Print Network (OSTI)

Laboratory, Washington, DC M. Wolford, Science Applications International, Corporation, McLean, VA F. Hegeler resolution along the laser axis to account for the change in gain from mirror to front window. The code) Pulsed Power System Amplifier Window BZ Laser Input Electron Beam Foil Support (Hibachi) Cathode Laser

274

Recovery Act: Integrated DC-DC Conversion for Energy-Efficient Multicore Processors  

SciTech Connect

In this project, we have developed the use of thin-film magnetic materials to improve in energy efficiency of digital computing applications by enabling integrated dc-dc power conversion and management with on-chip power inductors. Integrated voltage regulators also enables fine-grained power management, by providing dynamic scaling of the supply voltage in concert with the clock frequency of synchronous logic to throttle power consumption at periods of low computational demand. The voltage converter generates lower output voltages during periods of low computational performance requirements and higher output voltages during periods of high computational performance requirements. Implementation of integrated power conversion requires high-capacity energy storage devices, which are generally not available in traditional semiconductor processes. We achieve this with integration of thin-film magnetic materials into a conventional complementary metal-oxide-semiconductor (CMOS) process for high-quality on-chip power inductors. This project includes a body of work conducted to develop integrated switch-mode voltage regulators with thin-film magnetic power inductors. Soft-magnetic materials and inductor topologies are selected and optimized, with intent to maximize efficiency and current density of the integrated regulators. A custom integrated circuit (IC) is designed and fabricated in 45-nm CMOS silicon-on-insulator (SOI) to provide the control system and power-train necessary to drive the power inductors, in addition to providing a digital load for the converter. A silicon interposer is designed and fabricated in collaboration with IBM Research to integrate custom power inductors by chip stacking with the 45-nm CMOS integrated circuit, enabling power conversion with current density greater than 10A/mm2. The concepts and designs developed from this work enable significant improvements in performance-per-watt of future microprocessors in servers, desktops, and mobile devices. These new approaches to scaled voltage regulation for computing devices also promise significant impact on electricity consumption in the United States and abroad by improving the efficiency of all computational platforms. In 2006, servers and datacenters in the United States consumed an estimated 61 billion kWh or about 1.5% of the nation's total energy consumption. Federal Government servers and data centers alone accounted for about 10 billion kWh, for a total annual energy cost of about $450 million. Based upon market growth and efficiency trends, estimates place current server and datacenter power consumption at nearly 85 billion kWh in the US and at almost 280 billion kWh worldwide. Similar estimates place national desktop, mobile and portable computing at 80 billion kWh combined. While national electricity utilization for computation amounts to only 4% of current usage, it is growing at a rate of about 10% a year with volume servers representing one of the largest growth segments due to the increasing utilization of cloud-based services. The percentage of power that is consumed by the processor in a server varies but can be as much as 30% of the total power utilization, with an additional 50% associated with heat removal. The approaches considered here should allow energy efficiency gains as high as 30% in processors for all computing platforms, from high-end servers to smart phones, resulting in a direct annual energy savings of almost 15 billion kWh nationally, and 50 billion kWh globally. The work developed here is being commercialized by the start-up venture, Ferric Semiconductor, which has already secured two Phase I SBIR grants to bring these technologies to the marketplace.

Shepard, Kenneth L

2013-03-31T23:59:59.000Z

275

Material development in the SI{sub 3}N{sub 4} system using glass encapsulated Hip`ing. Final report, Phase 2: DOE/ORNL Ceramic Technology Project  

DOE Green Energy (OSTI)

This report covers a two-year program to develop fully dense Si{sub 3}N{sub 4} matrix SiC whisker composites with enhanced properties over monolithic Si{sub 3}N{sub 4} materials. The primary goal was to develop a composite with a fracture toughness > 10 MPa{radical}m, capable of using high pressure glass encapsulated HIP`ing. Coating methods were developed to apply thin (<150nm) stoichiometric BN layers to SiC whiskers and also to apply a dual coating of SiC over carbon to the whiskers. Fracture toughness of the composites was determined to increase as the quantity of whiskers (or elongated grains) with their axis perpendicular to the crack plane increased. Of the interface compositions evaluated in this effort, carbon was determined to be the most effective for increasing toughness. The highest toughnesses (6.8--7.0 MPa{radical}m) were obtained with uniaxially aligned carbon coated whiskers. There was no evidence of the carbon coating compromising the oxidation resistance of the composites at 1370{degree}C.

Corbin, N.D.; Sundberg, G.J.; Siebein, K.N.; Willkens, C.A.; Pujari, V.K.; Rossi, G.A.; Hansen, J.S.; Chang, C.L.; Hammarstrom, J.L.

1992-04-01T23:59:59.000Z

276

DC powerline communication system using a transmission line transformer for high degree of freedom applications  

E-Print Network (OSTI)

A new type of powerline communication is developed to reduce cable requirements for robotic, electromechanical, and vehicular systems. A DC power bus line connecting a DC power supply to motor drives and sensor units is ...

Wade, Eric R. (Eric Randolph), 1978-

2004-01-01T23:59:59.000Z

277

If you reside in WASHINGTON, DC - MD -VA - WV your salary will...  

National Nuclear Security Administration (NNSA)

If you are employed in the WASHINGTON, DC Metropolitan Area (D.C., Baltimore, Northern VA, Eastern WV, and Southern PA) your salary will range from: Pay Band Pay Plan(s) Minimum...

278

News From the D.C. Office: Federal Procurement of Efficient Chillers  

NLE Websites -- All DOE Office Websites (Extended Search)

3 Aerial view of Washington D.C. News From the D.C. Office Federal Procurement of Efficient Chillers The replacement of large electric chillers in government facilities, driven by...

279

Hydraulic fractur ing--also called hy  

E-Print Network (OSTI)

reported four species of pollinators (Riley, 1892; Davis, 1967; Frack, 1982; Powell, 1984), including three

Goodman, Robert M.

280

E(Race)ing gender: Stratified identities  

E-Print Network (OSTI)

In the discussion that follows, I will examine, on the broadest level, Hurston's complex negotiation of identity, as manifested in Their Eyes Were Watching God. Central to this investigation is an understanding of the strategies that women, specifically African American women, have adopted, under the auspices of marriage and the patronage system, to seek an equal place within a hegemonic culture. Most importantly, I want to address the cultural and social price exacted for accepting (as seen in the appropriation of white standards, and rejecting (as seen in Janie's trial for her husband's death) those institutions as the basis of one's identity. The cultural and social price that Janie pays, furthermore, challenges her adaptive capacity to stratify her racial and gender identity. Finally, it exacts a toll on the community as a whole, a fact Hurston repeatedly suggests by illustrating the extent to which the community has absorbed hegemonic standards of value and beauty with little or no inspection of or reflection on the effects to itself or to its individual members.

Nguyen, Le Thuy Thi

2000-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

IMPROVED GROOVING TOOL FOR TU ING  

te hnology readiness level: 6 a market deliverable has been demonstrated in relevant environments and is in final development . author: alexandra ...

282

nemsoverview_928.vp  

Gasoline and Diesel Fuel Update (EIA)

9) 9) The Na tional En ergy Mod el ing Sys tem: An Over view 2009 October 2009 En ergy In for ma tion Ad min is tra tion Of fice of In te grated Anal y sis and Fore cast ing U.S. De part ment of En ergy Wash ing ton, DC 20585 This re port was pre pared by the En ergy In for ma tion Ad min is tra tion, the in de pend ent sta tis ti cal and an a lyt i cal agency within the U.S. De part ment of En ergy. The in for ma tion con tained herein should be at trib uted to the En ergy In for ma tion Ad min is tra tion and should not be con strued as ad vo cat ing or re flect ing any pol icy po si tion of the De part ment of En ergy or any other or ga ni za tion. This pub li ca tion is on the WEB at: www.eia.doe.gov/oiaf/aeo/over view/ The Na tional En ergy Mod el ing Sys tem: An Over view 2009 pro vides a sum mary de scrip tion of the Na tional En ergy

283

Building Scale DC Microgrids Chris Marnay, Steven Lanzisera, Michael Stadler, and Judy Lai  

E-Print Network (OSTI)

of building loads are either native DC, such as electronics and compact fluorescent and light emitting diode

284

Accurate Load and Generation Scheduling for Linearized DC Models with Contingencies  

SciTech Connect

The power restoration timeline suggested by the DC power flow and the Angle Constrained DC power flow is shown. Unfortunately, the suggested generator dispatch does not always lead to feasible AC power flow solutions. Even when the AC solution is feasible, the inaccuracies of the DC power flow can lead to significant line overloads.

Bent, Russell W. [Los Alamos National Laboratory; Coffrin, Carleton J. [Los Alamos National Laboratory; van Hentenryc, Pascal [NICTA

2012-07-13T23:59:59.000Z

285

Solar Decathlon at Home in the D.C. Community | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Decathlon at Home in the D.C. Community Solar Decathlon at Home in the D.C. Community Addthis A New Energy-Efficient Home in the D.C. Community 1 of 27 A New Energy-Efficient Home...

286

H? robust control of DC-AC interfaced microsource in microgrids  

Science Conference Proceedings (OSTI)

This paper focuses on the direct current -- alternating current (DC-AC) interfaced microsource based H ¿ robust control strategies in microgrids. It presents detail of a DC-AC interfaced microsource model which is connected to the ... Keywords: DC-AC interfaced microsource, H? robust control, Microgrid, f-v droop characteristic, smooth switching

Chun-Xia Dou; Fang Zhao; Xing-Bei Jia; Dong-Le Liu

2013-02-01T23:59:59.000Z

287

Speed control of DC motor based on neural net and fuzzy logic  

Science Conference Proceedings (OSTI)

This paper presented the speed control of DC motor based on neural net and fuzzy logic. To bypass the difficulties caused by system constraints and modelling uncertainties of the speed control of DC motor a neural network approach for on-line speed control ... Keywords: DC motor, fuzzy logic, neural network, speed control

Zahra Moravej

2005-09-01T23:59:59.000Z

288

High energy electron fluxes in dc-augmented capacitively coupled plasmas I. Fundamental characteristics  

E-Print Network (OSTI)

as max=-Vdc+Vrf+Vrf0, for a voltage on the dc electrode of Vdc, rf voltage of Vrf, and dc bias on the rf electrode of Vrf0. The dc current from the biased electrode must return to ground through surfaces other

Kushner, Mark

289

VOLTAGE COLLAPSE AND TRANSIENT ENERGY FUNCTION ANALYSES OF AC/DC SYSTEMS  

E-Print Network (OSTI)

VOLTAGE COLLAPSE AND TRANSIENT ENERGY FUNCTION ANALYSES OF AC/DC SYSTEMS by Claudio A. Ca AND TRANSIENT ENERGY FUNCTION ANALYSES OF AC/DC SYSTEMS by Claudio A. Ca~nizares A dissertation submitted . . . . . . . . . . . . . 4 1.3.2 AC/DC Transient Energy Functions . . . . . . . . . . . . . . 6 2 System Modelling 8 2

Cañizares, Claudio A.

290

Current Trends, DC, 3/24-28/03Progress towards Energy Supported by  

E-Print Network (OSTI)

Current Trends, DC, 3/24-28/03Progress towards Energy Supported by Columbia U Comp-X GA INEL JHU-term research plan #12;Current Trends, DC, 3/24-28/03Progress towards Energy Spherical Torus Offers High Trends, DC, 3/24-28/03Progress towards Energy NSTX Is to Prove Scientific Principle (PoP) of the Extended

Princeton Plasma Physics Laboratory

291

Design of Electric Vehicles DC Traction Motor Drive System Based on Optimal Control  

Science Conference Proceedings (OSTI)

The traditional electric vehicle DC motor drive system can not automatically weaken magnetic field. This paper designs DC motor drive system which control optimally the motor to meet the requirement. The study results show that: the drive system can ... Keywords: electric vehicles, DC motor, controller, optimal control

Yan Jun

2012-12-01T23:59:59.000Z

292

EE443L: Intermediate Control Lab Lab2: Modeling a DC motor  

E-Print Network (OSTI)

will develop and validate a basic model of a permanent magnet DC motor (Yaskawa Electric, Mini-series, Minertia of a permanent magnet DC motor, the field current is constant (i.e. a constant magnetic field). It can be shownEE443L: Intermediate Control Lab Lab2: Modeling a DC motor Introduction: In this lab we

Wedeward, Kevin

293

Aalborg Universitet Supervisory Control of an Adaptive-Droop Regulated DC Microgrid with Battery  

E-Print Network (OSTI)

Aalborg Universitet Supervisory Control of an Adaptive-Droop Regulated DC Microgrid with Battery Control of an Adaptive-Droop Regulated DC Microgrid with Battery Management Capability. I E E E, 2013 #12;1 Supervisory Control of an Adaptive-Droop Regulated DC Microgrid with Battery Management

Vasquez, Juan Carlos

294

Solar Decathlon at Home in the D.C. Community | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

at Home in the D.C. Community Solar Decathlon at Home in the D.C. Community Addthis A New Energy-Efficient Home in the D.C. Community 1 of 27 A New Energy-Efficient Home in the...

295

Multilevel cascade voltage source inverter with seperate DC sources  

SciTech Connect

A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations.

Peng, Fang Zheng (Oak Ridge, TN); Lai, Jih-Sheng (Knoxville, TN)

1997-01-01T23:59:59.000Z

296

Multilevel cascade voltage source inverter with seperate DC sources  

DOE Patents (OSTI)

A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations.

Peng, Fang Zheng (Knoxville, TN); Lai, Jih-Sheng (Blacksburg, VA)

2002-01-01T23:59:59.000Z

297

Multilevel cascade voltage source inverter with separate DC sources  

DOE Patents (OSTI)

A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations. 15 figs.

Peng, F.Z.; Lai, J.S.

1997-06-24T23:59:59.000Z

298

DC Resistivity Survey (Schlumberger Array) At Raft River Geothermal Area  

Open Energy Info (EERE)

Area Area (1974-1975) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: DC Resistivity Survey (Schlumberger Array) At Raft River Geothermal Area (1974-1975) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique DC Resistivity Survey (Schlumberger Array) Activity Date 1974 - 1975 Usefulness not indicated DOE-funding Unknown Exploration Basis Hydrogeologic study of the area Notes In 1975, the U.S. Geological Survey made 70 Schlumberger resistivity soundings in the Upper Raft River Valley and in parts of the Raft River Valley. These soundings complement the 79 soundings made previously in the Raft River Valley and bring the total number of soundings to 149. This work was done as part of a hydrogeologic study of the area. The location,

299

dc-plasma-sprayed electronic-tube device  

DOE Patents (OSTI)

An electronic tube and associated circuitry which is produced by dc plasma arc spraying techniques is described. The process is carried out in a single step automated process whereby both active and passive devices are produced at very low cost. The circuitry is extremely reliable and is capable of functioning in both high radiation and high temperature environments. The size of the electronic tubes produced are more than an order of magnitude smaller than conventional electronic tubes.

Meek, T.T.

1982-01-29T23:59:59.000Z

300

Program on Technology Innovation: Superconducting DC Cable Workshop  

Science Conference Proceedings (OSTI)

This report is a summary of discussions and conclusion from a workshop on the technology of superconducting DC transmission cables. The workshop was held at EPRI in Palo Alto, California on October 12, 13, and 14, 2005. The purpose of the meeting was to bring a small group of experts in technologies relevant to the development of such a cable and to enumerate potential issues, technical challenges, and a timetable for development. The first half of the workshop consisted of short technical presentations,...

2006-03-31T23:59:59.000Z

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

The Use of DC Glow Discharges as Undergraduate Educational Tools  

SciTech Connect

Plasmas have a beguiling way of getting students excited and interested in physics. We argue that plasmas can and should be incorporated into the undergraduate curriculum as both demonstrations and advanced investigations of electromagnetism and quantum effects. Our device, based on a direct current (DC) glow discharge tube, allows for a number of experiments into topics such as electrical breakdown, spectroscopy, magnetism, and electron temperature.

Stephanie A. Wissel and Andrew Zwicker, Jerry Ross, and Sophia Gershman

2012-10-09T23:59:59.000Z

302

Basic DC Meter Design ECE 2100 Circuit Analysis Laboratory  

E-Print Network (OSTI)

Basic DC Meter Design ECE 2100 Circuit Analysis Laboratory updated 8 January 2008 Pre-Laboratory Assignment 1. Design an ammeter with full scale current IFS equal to 5 mA using a meter movement rated at 0.5 mA and 100 mV. 2. Design a voltmeter with a full scale voltage VFS equal to 10 V using the meter

Miller, Damon A.

303

Summary of electric vehicle dc motor-controller tests  

DOE Green Energy (OSTI)

Available performance data for production motors are usually of marginal value to the electric vehicle designer. To provide at least a partial remedy to this situation, tests of typical dc propulsion motors and controllers were conducted as part of the DOE Electric Vehicle Program. The objectives of this program were to evaluate the differences in the performance of dc motors when operating with chopper-type controllers and when operating on direct current; and to gain an understanding of the interactions between the motor and the controller which cause these differences. Toward this end, motor-controller tests performed by the NASA Lewis Research Center provided some of the first published data that quantified motor efficiency variations for both ripple-free (straight dc) and chopper modes of operation. Test and analysis work at the University of Pittsburgh explored motor-controller relationships in greater depth. And to provide additional data, 3E Vehicles tested two small motors, both on a dynamometer and in a vehicle, and the Eaton Corporation tested larger motors, using sophisticated instrumentation and digital processing techniques. All the motors tested were direct-current types. Of the separately excited types, seven were series wound and two were shunt wound. One self-excited permanent magnet type was also tested. Four of the series wound motors used brush shifting to obtain good commutation. In almost all cases, controller limitations constrained the test envelope so that the full capability of the motors could not be explored.

McBrien, E F; Tryon, H B

1982-09-01T23:59:59.000Z

304

Maryland DC Virginia Solar Energy Industries Association MDV SEIA | Open  

Open Energy Info (EERE)

DC Virginia Solar Energy Industries Association MDV SEIA DC Virginia Solar Energy Industries Association MDV SEIA Jump to: navigation, search Name Maryland-DC-Virginia Solar Energy Industries Association (MDV-SEIA) Place Bethesda, Maryland Zip 20814-3954 Sector Solar Product Trade associaton to promote solar equipment in the Mid-Atlantic region in US. Coordinates 40.020185°, -81.073819° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.020185,"lon":-81.073819,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

305

ReHABit : claiming endangered structures in Washington DC to rethink subsidized housing; Claiming endangered structures in Washington DC to rethink subsidized housing.  

E-Print Network (OSTI)

??There is an affordable housing crisis today in Washington D.C. that is the result of a uniquely complicated history of a capital city and a… (more)

Fowlkes, Catherine Kuhnle

2007-01-01T23:59:59.000Z

306

Multiphase soft switched DC/DC converter and active control technique for fuel cell ripple current elimination  

DOE Green Energy (OSTI)

DC/DC converter has a transformer having primary coils connected to an input side and secondary coils connected to an output side. Each primary coil connects a full-bridge circuit comprising two switches on two legs, the primary coil being connected between the switches on each leg, each full-bridge circuit being connected in parallel wherein each leg is disposed parallel to one another, and the secondary coils connected to a rectifying circuit. An outer loop control circuit that reduces ripple in a voltage reference has a first resistor connected in series with a second resistor connected in series with a first capacitor which are connected in parallel with a second capacitor. An inner loop control circuit that reduces ripple in a current reference has a third resistor connected in series with a fourth resistor connected in series with a third capacitor which are connected in parallel with a fourth capacitor.

Lai, Jih-Sheng (Blacksburg, VA); Liu, Changrong (Sunnyvale, CA); Ridenour, Amy (Salem, VA)

2009-04-14T23:59:59.000Z

307

Optimization of DC-DC Converters for Improved Electromagnetic Compatibility With High Energy Physics Front-End Electronics  

E-Print Network (OSTI)

The upgrade of the Large Hadron Collider (LHC) experiments at CERN sets new challenges for the powering of the detectors. One of the powering schemes under study is based on DC-DC buck converters mounted on the front-end modules. The hard environmental conditions impose strict restrictions to the converters in terms of low volume, radiation and magnetic field tolerance. Furthermore, the noise emission of the switching converters must not affect the performance of the powered systems. A study of the sources and paths of noise of a synchronous buck converter has been made for identifying the critical parameters to reduce their emissions. As proof of principle, a converter was designed following the PCB layout considerations proposed and then used for powering a silicon strip module prototype for the ATLAS upgrade, in order to evaluate their compatibility.

Fuentes, C; Michelis, S; Blanchot, G; Allongue, B; Faccio, F; Orlandi, S; Kayal, M; Pontt, J

2011-01-01T23:59:59.000Z

308

Data:D28923dc-45dc-45e5-b62b-3ca789517591 | Open Energy Information  

Open Energy Info (EERE)

923dc-45dc-45e5-b62b-3ca789517591 923dc-45dc-45e5-b62b-3ca789517591 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Northern States Power Co - Minnesota Effective date: 2012/05/01 End date if known: Rate name: SMALL GENERAL TIME OF DAY SERVICE Low Wattage (A22) Sector: Commercial Description: Customer Charge per Month (Please see page 5-24.1) Available to any non-residential customer for single or three phase electric service supplied through one meter. DETERMINATION OF CUSTOMER BILLS Customer bills shall reflect energy charges (if applicable) based on customer's kWh usage, plus a customer charge (if applicable), plus demand charges (if applicable) based on customer's kW billing demand as defined. INTERIM RATE ADJUSTMENT A 4.49% Interim Rate Surcharge will be applied to rate components specified in the "Interim Rate Surcharge Rider." In addition, customer bills under this rate are subject to the following adjustments and/or charges. FUEL CLAUSE Bills are subject to the adjustments provided for in the Fuel Clause Rider. RESOURCE ADJUSTMENT Bills are subject to the adjustments provided for in the Conservation Improvement Program Adjustment Rider, the State Energy Policy Rate Rider, the Renewable Development Fund Rider, the Transmission Cost Recovery Rider, the Renewable Energy Standard Rider and the Mercury Cost Recovery Rider. ENVIRONMENTAL IMPROVEMENT RIDER Bills are subject to the adjustments provided for in the Environmental Improvement Rider.

309

A high efficiency, soft switching dc-dc converter with adaptive current-ripple control for portable applications  

E-Print Network (OSTI)

Abstract—A novel control scheme for improving the power efficiency of low-voltage dc–dc converters for battery-powered, portable applications is presented. In such applications, light-load efficiency is crucial for extending battery life, since mobile devices operate in stand-by mode for most of the time. The proposed technique adaptively reduces the inductor current ripple with decreasing load current while soft switching the converter to also reduce switching losses, thereby significantly improving light-load efficiency and therefore extending the operation life of battery-powered devices. A load-dependent, mode-hopping strategy is employed to maintain high efficiency over a wide load range. Hysteretic (sliding-mode) control with user programmable hysteresis is implemented to adaptively regulate the current ripple and therefore optimize conduction and switching losses. Experimental results show that for a 1-A, 5- to 1.8-V buck regulator, the proposed technique achieved 5 % power efficiency improvement (from 72 % to 77%) at 100 mA of load current and a 1.5% improvement (from 84 % to 85.5%) at 300 mA, which constitute light-load efficiency improvements, when compared to the best reported, state-of-the-art techniques. As a result, the battery life in a typical digital signalr processing microprocessor application is improved by 7%, which demonstrates the effectiveness of the proposed solution. Index Terms—Battery life, buck converter, dc–dc converter, efficiency, hysteretic control, sliding-mode control, soft switching, switching regulator.

Siyuan Zhou; Student Member; Gabriel A. Rincón-mora; Senior Member

2006-01-01T23:59:59.000Z

310

DC Regional High School Science Bowl | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

DC Regions » DC Regional High DC Regions » DC Regional High School Science Bowl National Science Bowl® (NSB) NSB Home About High School High School Students High School Coaches High School Regionals High School Rules, Forms, and Resources Middle School Attending National Event Volunteers 2013 Competition Results News Media WDTS Home Contact Information National Science Bowl® U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: 202-586-6702 E: National.Science.Bowl@science.doe.gov Washington DC Regions DC Regional High School Science Bowl Print Text Size: A A A RSS Feeds FeedbackShare Page Regional Coordinator Information Name: Jamie T. Scipio Email: jamie.scipio@hq.doe.gov Regional Event Information Date: Saturday, February 22, 2014 Maximum Number of Teams: 12

311

News From the D.C. Office: Energy-Saving Office Equipment Part 2  

NLE Websites -- All DOE Office Websites (Extended Search)

3 Aerial view of Washington D.C. 3 Aerial view of Washington D.C. News From the D.C. Office Energy-Saving Office Equipment Part 2: Making the "Virtual Office" Real More on the DC Office efficiency up-grade: Lighting, Office Equipment: Part 1 Regular readers of the Center for Building Science News know that energy-efficient lighting and office equipment can have significant environmental and economic benefits. Previous articles ("Monitored Savings from Energy-Efficient Lighting in D.C. Office" [Spring 1997, p. 3] and "Energy-Saving Office equipment" [Summer 1997, p. 3]) discussed these features of Berkeley Lab's Washington, D.C. office. The D.C. office also serves as a demonstration site for telecommunications technologies, which have energy and environmental benefits of their own.

312

Energy Challenge Two: The WeatherizeDC Campaign | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Challenge Two: The WeatherizeDC Campaign Energy Challenge Two: The WeatherizeDC Campaign Energy Challenge Two: The WeatherizeDC Campaign June 14, 2010 - 9:15am Addthis John Lippert In my quest to learn what other local groups are doing to help the environment and hopefully avoid reinventing the wheel, I attended a meeting of the Greenbelt Climate Action Network, a local chapter of the grassroots, nonprofit organization Chesapeake Climate Action Network. There I met two WeatherizeDC field organizers who described the work they are doing. Terrance and Heather explained that WeatherizeDC is a campaign of The DC Project, a nonprofit based in Washington, D.C., founded by former leaders of the Obama for America campaign around a mission to advance economic and environmental justice by creating clean energy career opportunities for

313

DC Regional Middle School Science Bowl | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

DC Regions » DC Regional Middle DC Regions » DC Regional Middle School Science Bowl National Science Bowl® (NSB) NSB Home About High School Middle School Middle School Students Middle School Coaches Middle School Regionals Middle School Rules, Forms, and Resources Attending National Event Volunteers 2013 Competition Results News Media WDTS Home Contact Information National Science Bowl® U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: 202-586-6702 E: National.Science.Bowl@science.doe.gov Washington DC Regions DC Regional Middle School Science Bowl Print Text Size: A A A RSS Feeds FeedbackShare Page Regional Coordinator Information Name: Chester Scott Email: chester.scott@hq.doe.gov Regional Event Information Date: Saturday, February 8, 2014 Maximum Number of Teams: 12

314

Solar Decathlon at Home in the D.C. Community | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Solar Decathlon at Home in the D.C. Community Solar Decathlon at Home in the D.C. Community Solar Decathlon at Home in the D.C. Community Addthis A New Energy-Efficient Home in the D.C. Community 1 of 27 A New Energy-Efficient Home in the D.C. Community On December 4, 2012, the Empowerhouse team, along with partners and community members, completed the installation of a permanent, two-family home in Washington, D.C. The home was originally showcased as part of the U.S Department of Energy's Solar Decathlon 2011. Image: Sarah Gerrity Date taken: 2012-12-04 12:22 2 of 27 The house is located in the D.C. neighborhood of Deanwood, which is just 10 miles from the National Mall. By installing the house nearby, the team was able to minimize shipping costs, therefore reducing the house's carbon footprint. Image: Sarah Gerrity

315

DC Resistivity Survey (Schlumberger Array) | Open Energy Information  

Open Energy Info (EERE)

Schlumberger Array) Schlumberger Array) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: DC Resistivity Survey (Schlumberger Array) Details Activities (2) Areas (2) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Vertical Electrical Sounding Configurations Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature

316

DC Resistivity Survey (Wenner Array) | Open Energy Information  

Open Energy Info (EERE)

Wenner Array) Wenner Array) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: DC Resistivity Survey (Wenner Array) Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Vertical Electrical Sounding Configurations Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png

317

DC Resistivity Survey (Pole-Dipole Array) | Open Energy Information  

Open Energy Info (EERE)

Pole-Dipole Array) Pole-Dipole Array) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: DC Resistivity Survey (Pole-Dipole Array) Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electrical Profiling Configurations Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png

318

The dc modeling program (DCMP): Version 2. 0  

Science Conference Proceedings (OSTI)

In this project one of the main objectives was the refinement of tools for the study of HVDC systems. The original software was prepared in project RP1964-2 (EL-4365) as power flow and stability program models for HVDC systems. In this project new modeling capabilities were added to both the power flow and stability models. Additionally, the HVDC specific model capabilities were integrated into a new program, termed the Standalone program, for use in the development and testing of HVDC models. This manual provides technical background for programmers and those interested in understanding, augmenting or transporting the dc models.

Chapman, D.G. (Manitoba HVDC Research Centre, Winnipeg, MB (Canada))

1990-08-01T23:59:59.000Z

319

Hardwired Control Changes For NSTX DC Power Feeds  

SciTech Connect

The National Spherical Torus Experiment (NSTX) has been designed and installed in the existing facilities at Princeton Plasma Physics Laboratory (PPPL). Most of the hardware, plant facilities, auxiliary sub-systems, and power systems originally used for the Tokamak Fusion Test Reactor (TFTR) have been used with suitable modifications to reflect NSTX needs. The original TFTR Hardwired Control System (HCS) with electromechanical relays was used for NSTX DC Power loop control and protection during NSTX operations. As part of the NSTX Upgrade, the HCS is being changed to a PLC-based system with the same control logic. This paper gives a description of the changeover to the new PLC-based system __________________________________________________

Ramakrishnan, S.

2013-06-28T23:59:59.000Z

320

Feasibility of dc transmission with forced commutation to remote loads  

SciTech Connect

Previous researchers have analysed the forced commutated HVDC inverter and have concluded that it could be used to meet the reactive power at the inverter terminals. This investigation is a further technical appraisal involving a two terminal transmission scheme to a remote load with no ac generation at the load. Several possible inverter configurations are discussed. An electromagnetic transients program is used to model the system and simulate such aspects as start up, ac and dc faults and speed of response to voltage and frequency controls. The results indicate that such a scheme is indeed technically feasible and may be quite attractive from an economic and reliability point of view.

Turanli, H.M.; Menzies, R.W.; Woodford, D.A.

1984-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

dc-to-ac power converter for fuel cell system  

SciTech Connect

As the interface between fuel cells and the utility line, a self-commutated inverter is preferred to a line-commutated inverter because of its easy controllability. Using the gate turn off (GTO) thyristors, this inverter can have high efficiency and simple circuit configurations. This paper describes the design features and test results of the dc-to-ac power converter, which is principally composed of four-phase transistor chopper and 12-pulse GTO inverter, for a 50kW experimental fuel cell power system. Furthermore, new GTO inverter which improves the circuit efficiency is presented. Special emphasis is placed on a detailed analysis and evaluation of this GTO inverter.

Kawabata, T.; Asaeda, T.; Hamasaki, Y.; Yutani, T.

1983-10-01T23:59:59.000Z

322

Edison Revisited: Should we use DC Circuits for Lighting in Commercial  

NLE Websites -- All DOE Office Websites (Extended Search)

Edison Revisited: Should we use DC Circuits for Lighting in Commercial Edison Revisited: Should we use DC Circuits for Lighting in Commercial Buildings? Speaker(s): Brinda Thomas Date: March 7, 2012 - 12:30pm Location: 90-3122 Seminar Host/Point of Contact: Chris Marnay This seminar summarizes work from a forthcoming Energy Policy paper and thoughts on future work to understand the economics of DC building circuits. We examined the economic feasibility of a general application of DC building circuits to operate commercial lighting systems. We compare light-emitting diodes (LEDs) and fluorescents that are powered by either a central DC power supply or traditional AC grid electricity, with and without solar photovoltaics (PV) and battery back-up. We find that there are limited life-cycle ownership cost and capital cost benefits of DC

323

News From the D.C. Office: Monitored Savings from Energy-Efficient Lighting  

NLE Websites -- All DOE Office Websites (Extended Search)

3 Aerial view of Washington D.C. 3 Aerial view of Washington D.C. News From the D.C. Office Monitored Savings from Energy-Efficient Lighting in D.C. Office More on the DC Office efficiency up-grade: Office Equipment: Part 1, Part 2 Figure 1: Lighting energy use profile for a typical exterior office. Berkeley Lab's office in Washington, D.C. is located a few blocks from DOE headquarters, in a five-year-old office building constructed mainly for lease to Federal agencies and their contractors. Despite its recent vintage, the building's standard lighting specifications were far from today's best, cost-effective practice. In designing the build-out plans for offices and meeting rooms in our 7,500-square-foot suite, we wanted to showcase some of the energy-efficient lighting and office equipment developed for DOE's Building Technologies

324

AC to DC Line Conversion: DConvert Program Version 1.0  

Science Conference Proceedings (OSTI)

The past several years have seen renewed interest in the prospect of converting ac lines to dc operation interest spurred both by the ongoing need to make greater use of existing transmission assets and advances in HVDC converter technology. EPRI has sponsored two major studies dealing with the conversion prospect. The first, 8220Tools for Assessing Conversion of AC Power Transmission Lines to DC,(Product ID # 1020651) and the second, 8220Dc Capability of AC Transmission Lines,(Product ID #1013979). Cont...

2010-10-26T23:59:59.000Z

325

Technology Assessment and Application Guide for Active Power's CoolAir DC  

Science Conference Proceedings (OSTI)

This report describes and documents the construction and performance of a novel battery free backup power product, CoolAir (DC) based upon TACAS (Thermal Compressed Air Storage) technology and manufactured by Active Power of Austin, Texas. Comprised of compressed air tanks, thermal storage unit, high-speed air turbine, flywheel, and power electronics, the CoolAir DC is designed to deliver DC power to devices such as an uninterruptible power supply or adjustable speed drive while producing cool air during...

2005-11-15T23:59:59.000Z

326

Study of power transfer capability of dc systems incorporating ac loads and a parallel ac line  

Science Conference Proceedings (OSTI)

Concepts of maximum power transfer of dc systems and associated ac voltage variations, particularly at inverter stations having low short-circuit ratios, have been extended to include various ac load models and an ac line in parallel with the dc line. The operating capabilities are shown to vary from those predicted from either a Thevenin ac source model or the corresponding short-circuit ratio. The study used an ac/dc load flow program.

Reeve, J.; Uzunovic, E. [Univ. of Waterloo, Ontario (Canada)

1997-01-01T23:59:59.000Z

327

Reduction of 1/fnoise in high-T dc superconducting quantum ...  

Reduction of 1/fnoise in high-Tc dc superconducting quantum interference devices cooled in an ambient magnetic ?eld E. Dantsker, S. Tanaka, P.-A?.

328

2D Joint Inversion Of Dc And Scalar Audio-Magnetotelluric Data...  

Open Energy Info (EERE)

D Joint Inversion Of Dc And Scalar Audio-Magnetotelluric Data In The Evaluation Of Low Enthalpy Geothermal Fields Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home...

329

Characterization of Fir-tree Zones in AA1050 DC Cast Ingot  

Science Conference Proceedings (OSTI)

Using combination of electron backscattered diffraction, energy dispersive ... of Fe-bearing intermetallics throughout the fir-tree zones of AA1050 DC ingot were  ...

330

BERAC Meeting November 3-4, 2004 Washington, DC | U.S. DOE Office...  

Office of Science (SC) Website

3-4, 2004 Washington, DC Biological and Environmental Research Advisory Committee (BERAC) BERAC Home Meetings BERAC Minutes BERAC Minutes Archive Members Charges Reports Charter...

331

Water | Desire: Design of a Responsible Urban Retreat in Georgetown, Washington, DC.  

E-Print Network (OSTI)

??The design of an urban retreat within an industrial building in Georgetown, DC provides an opportunity to experience water in the built environment. The location… (more)

Zimmerli, Tanya

2013-01-01T23:59:59.000Z

332

Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings  

E-Print Network (OSTI)

for Renewables and Efficiency: Net Metering Policies SummaryDC residential distribution. Net-Metering Because the gridgrid-connected [33]. Net metering makes grid-connected PV

Garbesi, Karina

2012-01-01T23:59:59.000Z

333

Research, Washington, DC (United States) Sandia National Labs.,  

Office of Scientific and Technical Information (OSTI)

584878 SAND--95-2914 GeoEnergy technology 1980-12-31 USDOE Office of Energy 584878 SAND--95-2914 GeoEnergy technology 1980-12-31 USDOE Office of Energy Research, Washington, DC (United States) Sandia National Labs., Albuquerque, NM (United States) English 2010-02-18 Technical Report http://www.osti.gov/geothermal/servlets/purl/584878-P1qAuZ/webviewable/ http://www.osti.gov/energycitations/product.biblio.jsp?osti_id=584878 29 ENERGY PLANNING AND POLICY; RESEARCH PROGRAMS; COAL; PETROLEUM; NATURAL GAS; SYNTHETIC PETROLEUM; GEOTHERMAL ENERGY; ENERGY CONVERSION; PRODUCTION; HEAT EXTRACTION; US DOE; IN-SITU GASIFICATION; ENHANCED RECOVERY; COAL LIQUEFACTION; GEOTHERMAL WELLS Geothermal Legacy 894529 894529 Use of Geothermal Energy for Aquaculture Purposes - Phase III Johnson, W.C.; Smith, K.C. 1981-09-01 USDOE Geo-Heat Center, Klamath Falls, OR English

334

Disc rotors with permanent magnets for brushless DC motor  

DOE Patents (OSTI)

A brushless dc permanent magnet motor drives an autonomous underwater vehe. In one embodiment, the motor comprises four substantially flat stators in stacked relationship, with pairs of the stators axially spaced, each of the stators comprising a tape-wound stator coil, and first and second substantially flat rotors disposed between the spaced pairs of stators. Each of the rotors includes an annular array of permanent magnets embedded therein. A first shaft is connected to the first rotor and a second, concentric shaft is connected to the second rotor, and a drive unit causes rotation of the two shafts in opposite directions. The second shaft comprises a hollow tube having a central bore in which the first shaft is disposed. Two different sets of bearings support the first and second shafts. In another embodiment, the motor comprises two ironless stators and pairs of rotors mounted on opposite sides of the stators and driven by counterrotating shafts.

Hawsey, Robert A. (Oak Ridge, TN); Bailey, J. Milton (Knoxville, TN)

1992-01-01T23:59:59.000Z

335

Data:32e71087-dc4e-4f67-a64d-c27cf8411705 | Open Energy Information  

Open Energy Info (EERE)

-dc4e-4f67-a64d-c27cf8411705 -dc4e-4f67-a64d-c27cf8411705 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: City of Rockwood, Tennessee (Utility Company) Effective date: 2012/12/01 End date if known: Rate name: Outdoor Lighting HPS 200w Sector: Lighting Description: ROCKWOOD ELECRIC UTILITY can install a private security light on your residential or commercial property under most conditions. All new requests for outdoor lighting require the applicant to sign a minimum two year contract for security lighting service. If you have security concerns and would like to discuss outdoor lighting options, please contact our Engineering Department to look at the situation with you.

336

Data:692a2dc0-44ed-44ef-a5d9-f42dc3f27436 | Open Energy Information  

Open Energy Info (EERE)

dc0-44ed-44ef-a5d9-f42dc3f27436 dc0-44ed-44ef-a5d9-f42dc3f27436 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Tri-County Elec Member Corp (Tennessee) Effective date: 2013/06/01 End date if known: Rate name: 400 Watt MV Sector: Lighting Description: Source or reference: http://www.tcemc.org/index.php/residential-information/ Source Parent: Comments Applicability Demand (kW) Minimum (kW): Maximum (kW): History (months): Energy (kWh) Minimum (kWh): Maximum (kWh): History (months): Service Voltage Minimum (V): Maximum (V): Character of Service Voltage Category: Phase Wiring: << Previous 1 2 3 Next >>

337

Data:5df914dc-748a-4757-980d-c7fa8bd9d9fe | Open Energy Information  

Open Energy Info (EERE)

dc-748a-4757-980d-c7fa8bd9d9fe dc-748a-4757-980d-c7fa8bd9d9fe No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Sumter Electric Member Corp Effective date: 2012/01/01 End date if known: Rate name: Outdoor Lighting Off- Roadway HPS 250 W Sector: Lighting Description: * Fixed Monthly Charge does not include monthly pole rate charges Source or reference: http://www.sumteremc.com/pdfs/OL-9.pdf Source Parent: Comments Applicability Demand (kW) Minimum (kW): Maximum (kW): History (months): Energy (kWh) Minimum (kWh): Maximum (kWh): History (months): Service Voltage Minimum (V): Maximum (V): Character of Service

338

Data:73d310b4-d5f4-48dc-b4dc-9aca99090e47 | Open Energy Information  

Open Energy Info (EERE)

0b4-d5f4-48dc-b4dc-9aca99090e47 0b4-d5f4-48dc-b4dc-9aca99090e47 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Village of Black Earth, Wisconsin (Utility Company) Effective date: 1999/08/01 End date if known: Rate name: Ms-1 Outdoor Lighting Service: Athletic Field Lighting Sector: Lighting Description: Application: This schedule will be applied to municipal street lighting. The utility will furnish, install, and maintain street lighting units. Fixed Monthly Charge includes Commitment to Community Rider: $1.33 per customer per month. Power Cost Adjustment Clause: Charge per all kWh varies monthly.

339

A Bidirectional, Triple-Voltage DC-DC Converter for Hybrid and Fuel Cell Vehicle Power Systems  

Science Conference Proceedings (OSTI)

Electrical power systems in future hybrid and fuel cell vehicles may employ three voltage (14V, 42V and high voltage (HV)) nets. These will be necessary to accommodate existing 14V loads as well as efficiently handle new heavy loads at the 42V net and an electrical traction drive on the HV bus. A low-cost bi-directional dc-dc converter was proposed in (10) for connecting the three voltage nets. The converter consists of two half-bridges and a high-frequency transformer; thus minimizing the number of switching devices and their associated gate driver components. One salient feature is that the half-bridge on the 42V bus is also utilized to provide the 14V bus by operating its duty ratio around an atypical value of 1/3. This eliminates the need for an additional 14V/42V converter. Moreover, it makes use of the parasitic capacitance of the switches and the transformer leakage inductance for soft-switching; no extra active switches or passive resonant components are required. The use of half-bridges makes the topology suitable for interleaved multi-phase configurations as a means to increase the power level because the capacitor legs can be shared. This paper presents simulation and experimental results on an interleaved two-phase arrangement rated at 4.5 kW. Also discussed are the benefits of operating with the atypical duty ratio on the transformer and a preferred multi-phase configuration to minimize capacitor ripple currents.

Su, Gui-Jia [ORNL; Tang, Lixin [ORNL

2007-01-01T23:59:59.000Z

340

A new arrangement of AC/DC converters for high direct-current applications  

Science Conference Proceedings (OSTI)

A novel AC/DC converter designed for high-output direct currents and tight output voltage regulations is introduced. The proposed converter exhibits good efficiency and very low output voltage ripple. In order to verify the performances of the four-stage ... Keywords: AC/DC converter, FFT, electrical distribution systems, high direct-current

Francesco Muzi; Luigi Passacantando

2008-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Improvements in power quality and efficiency with a new AC/DC high current converter  

Science Conference Proceedings (OSTI)

A very flexible AC/DC converter featuring high-output current, reduced voltage ripple and highly adjustable current control is described. The whole system consists of four stages and uses a proper switching technique in conjunction with a feedback control ... Keywords: AC/DC converter, FFT, electrical distribution systems, high direct-current, power quality

Francesco Muzi; Luigi Passacantando

2008-05-01T23:59:59.000Z

342

The GreenIT DC-benchmarking tool: from scientific theory to real life  

Science Conference Proceedings (OSTI)

Energy efficiency is one of the topics in achieving the goal of reducing the CO2 output in the next years. Data centers (DC) are big polluters. GreenIT DC-Benchmarking is the first neutral benchmarking tool that shows the specific energy and ... Keywords: data center benchmarking, energy consumption, energy efficiency & monitoring, key performance indicator, power usage effectiveness (PUE)

Ywes Israel; Thomas Leitert

2012-05-01T23:59:59.000Z

343

Stabilizing technique for AC-DC boost PFC converter based on time delay feedback  

Science Conference Proceedings (OSTI)

It is well known that the ac-dc power factor correction (PFC) boost preregulator can present instability at the line frequency. This nonlinear phenomenon can jeopardize the system performances by increasing the total harmonic distortion and decreasing ... Keywords: ac-dc converters, line frequency instability, power factor correction (PFC), time delay feedback (TDF)

Abdelali El Aroudi; Mohamed Orabi

2010-01-01T23:59:59.000Z

344

EPRI HVDC Reference Book: Chapter 13 - DC Transmission with Voltage Sourced Converters  

Science Conference Proceedings (OSTI)

DC Transmission with voltage sourced converters (VSC) is a relatively new development in DC transmission. This report covers circuits, theory and capabilities of this new development in HVDC transmission. The report will be a Chapter in the comprehensive HVDC reference guide that EPRI is preparing.

2009-12-21T23:59:59.000Z

345

Abstract. Doxycycline (Dc) has been demonstrated to inhibit cell growth and induce apoptosis in tumor cells,  

E-Print Network (OSTI)

Abstract. Doxycycline (Dc) has been demonstrated to inhibit cell growth and induce apoptosis of apoptosis, whereas the role of the caspase-9 was limited. Keywords. Doxycycline, apoptosis, mitochondria by inhibiting bacterial protein syn- thesis. Doxycycline (Dc) is a semi-synthetic tetracycline made by modifying

Tian, Weidong

346

Design and Verification of Smart and Scalable DC Microgrids for Emerging Regions  

E-Print Network (OSTI)

Design and Verification of Smart and Scalable DC Microgrids for Emerging Regions P. Achintya solutions that displace fossil fuels and are financially viable for developing regions. A novel DC microgrid-testing of the technical and economic viability of the microgrid system are presented. I. INTRODUCTION Millions

Sanders, Seth

347

Control of Parallel-Connected Bidirectional AC-DC Converters in Stationary Frame for Microgrid  

E-Print Network (OSTI)

Control of Parallel-Connected Bidirectional AC-DC Converters in Stationary Frame for Microgrid-- With the penetration of renewable energy in modern power system, microgrid has become a popular application worldwide. In this paper, parallel-connected bidirectional converters for AC and DC hybrid microgrid application

Teodorescu, Remus

348

A high-power switch-mode dc power supply for dynamic loads  

SciTech Connect

High-voltage dc power supplies are often required to operate with highly dynamic loads, such as arcs. A switch-mode dc power supply can offer significant advantages over conventional thyristor-based dc power supplies under such conditions. It can quickly turn off the supply to extinguish the arc, and it can quickly recover after the arc. It has a relatively small output filter capacitance, which results in small stored energy available to the arc. A 400-kW, 50-kV switch-mode dc power supply for an electron-beam gun that exploits these advantages was designed and tested. It uses four 100-kW, current-source-type dc-dc converters with inputs in parallel and outputs in series. The dc-dc converters operate at 20 kHz in the voltage regulator part and 10 kHz in the inverter, transformer, and output rectifier part of the circuit. Insulated gate bipolar transistors (IGBTs) are used as the power switches. Special techniques are used to protect the power supply and load against arcs and hard shorts. The power supply has an efficiency of 93%, an output voltage ripple of 1%, and fast dynamic response. In addition, it is nearly one-third the size of conventional power supplies.

Shimer, D.W.; Lange, A.C. [Lawrence Livermore National Lab., CA (United States); Bombay, J.N. [Kaiser Engineers, Oakland, CA (United States)

1994-06-23T23:59:59.000Z

349

Design and analysis of an electronic ballast with a secondary DC output  

Science Conference Proceedings (OSTI)

An electronic ballast circuit for a high-frequency operated fluorescent lamp, which uses switched-capacitor techniques, is presented in this paper. A part of energy in the electronic ballast is derived to a secondary DC output as a power supply. All ... Keywords: DC power supply, electronic ballast, energy recovery, resonant converter

K. W. E. Cheng; H. Y. Wang; D. K. W. Cheng

2008-11-01T23:59:59.000Z

350

Analog Integrated Circuits and Signal Processing, 42, 231–238, 2005 c ? 2005 Springer Science + Business Media, Inc. Manufactured in The Netherlands. Cascode Monolithic DC-DC Converter for Reliable Operation at High Input Voltages  

E-Print Network (OSTI)

Abstract. A cascode bridge circuit for monolithic switching DC-DC converters operating at high input voltages is proposed in this paper. The proposed circuit can also be used as an I/O buffer to interface circuits operating at significantly different voltages. The circuit technique permits the full integration of the active and passive devices of a switching DC-DC converter with a high voltage conversion ratio in a standard low voltage CMOS technology. The cascode bridge structure guarantees the reliable operation of deep submicrometer MOSFETs without exposure to high voltage stress while operating at high input and output voltages. With the proposed circuit technique, steady-state voltage differences between the terminals of all of the MOSFETs in a switching DC-DC converter are maintained within a range imposed by a target low voltage CMOS technology. High-to-low DC-DC converters operating at input voltages up to three times as high as the maximum voltage that can be directly applied across the terminals of a MOSFET are described. An efficiency of 79.6 % is achieved for 5.4 volts to 0.9 volts conversion assuming a 0.18 µm CMOS technology. The DC-DC converter operates at a switching frequency of 97 MHz while supplying a DC current of 250 mA to the load. Key Words: low voltage DC-DC converters, monolithic voltage regulators, low voltage CMOS technology, MOSFET reliability issues, high voltage stress 1.

Volkan Kursun; Siva G. Narendra; Vivek K. De; Eby G. Friedman

2004-01-01T23:59:59.000Z

351

Biographical Memoirs, Volume 74, published 1998 by The National Academy Press, Washington DC Albert Francis Birch  

E-Print Network (OSTI)

of transuranium elements, such as plutonium (>1800 metric tons cre- ated in nuclear reactors). The geochemical to be untenable. A NOTE ON PLUTONIUM MINERAL EVOLUTION Plutonium was not a geochemically significant element with uraninite; thus, uraninite might have hosted trace amounts of plutonium on the early Earth. However, lacking

Stewart, Sarah T.

352

Using Direct-DC Power Distribution in U.S. Residential Buildings Can Save  

NLE Websites -- All DOE Office Websites (Extended Search)

Using Direct-DC Power Distribution in U.S. Residential Buildings Can Save Using Direct-DC Power Distribution in U.S. Residential Buildings Can Save Energy October 2013 October-November Special Focus: Energy Efficiency, Buildings and the Electric Grid An increasing fraction of the most efficient appliances on the market operate on direct current (DC) internally, making it possible to use DC from renewable energy systems directly and avoid the losses inherent in converting power to alternating current (AC) and back, as is current practice. Products are also emerging on the commercial market that take advantage of that possibility. Lawrence Berkeley National Laboratory researchers Vagelis Vossos, Karina Garbesi, and Hongxia Shen investigated the potential savings of direct-DC power distribution in net-metered residences with on-site photovoltaics

353

2D Joint Inversion Of Dc And Scalar Audio-Magnetotelluric Data In The  

Open Energy Info (EERE)

Joint Inversion Of Dc And Scalar Audio-Magnetotelluric Data In The Joint Inversion Of Dc And Scalar Audio-Magnetotelluric Data In The Evaluation Of Low Enthalpy Geothermal Fields Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: 2D Joint Inversion Of DC And Scalar Audio-Magnetotelluric Data In The Evaluation Of Low Enthalpy Geothermal Fields Details Activities (0) Areas (0) Regions (0) Abstract: Audio-magnetotelluric (AMT) and resistivity (dc) surveys are often used in environmental, hydrological and geothermal evaluation. The separate interpretation of those geophysical data sets assuming two-dimensional models frequently produces ambiguous results. The joint inversion of AMT and dc data is advocated by several authors as an efficient method for reducing the ambiguity inherent to each of those

354

Persons Who Received the DC PSC's Emergency Petition and Complaint via  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Persons Who Received the DC PSC's Emergency Petition and Complaint Persons Who Received the DC PSC's Emergency Petition and Complaint via E-mail on August 24, 2005 Persons Who Received the DC PSC's Emergency Petition and Complaint via E-mail on August 24, 2005 Docket No. EO-05-01: In response to your August 29, 2005 letter, attached please find a list of all entities and organizations to whom we served the District of Columbia Public Service Commission's (HOC PSC") Petition and Complaint filed on August 24, 2005, in the above-referenced proceeding. In addition, attached is the Federal Energy Regulatory Conmlission ("FERC") service list which contains some additional entities that have intervened before the FERC and that have apparently viewed the DC PSC's Petition and Complaint. Persons Who Received the DC PSC's Emergency Petition and Complaint via

355

Grid Modernization Highlighted in Washington DC in September with the Solar  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Grid Modernization Highlighted in Washington DC in September with Grid Modernization Highlighted in Washington DC in September with the Solar Decathlon Grid Modernization Highlighted in Washington DC in September with the Solar Decathlon September 9, 2011 - 4:40pm Addthis Smart Grid is on display at the U.S. Department of Energy 2011 Solar Decathlon, held September 23 through October 2 on the National Mall, West Potomac Park, Washington, DC. The decathlon challenges collegiate teams to design, build, and operate solar-powered houses that are cost-effective, energy-efficient, and attractive. The Office of Electricity Delivery and Energy Reliability will be hosting a booth providing information on grid modernization and smart meters. From Monday September 12 through Thursday September 15, the GridWeek conference was held in Washington, DC. The Office of Electricity Delivery

356

We Have a Winner - DC High School Regional Science Bowl Competition Held  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

We Have a Winner - DC High School Regional Science Bowl Competition We Have a Winner - DC High School Regional Science Bowl Competition Held Last Saturday We Have a Winner - DC High School Regional Science Bowl Competition Held Last Saturday February 11, 2013 - 10:30am Addthis We Have a Winner - DC High School Regional Science Bowl Competition Held Last Saturday Annie Whatley Annie Whatley Deputy Director, Office of Minority Economic Impact As part of the National Science Bowl, more than 9,500 high school students take place in 70 high school regional competitions around the United States and Puerto Rico. The winners of these regions advance to the National Science Bowl competition held every April in Chevy Chase, Maryland. On Saturday, February 9, the Office of Economic Impact and Diversity hosted the Washington, D.C. High School Regional Science Bowl competition at Cesar

357

Washington DC Regions | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Washington DC Regions Washington DC Regions National Science Bowl® (NSB) NSB Home About High School Middle School Middle School Students Middle School Coaches Middle School Regionals Middle School Rules, Forms, and Resources Attending National Event Volunteers 2013 Competition Results News Media WDTS Home Contact Information National Science Bowl® U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: 202-586-6702 E: National.Science.Bowl@science.doe.gov Middle School Regionals Washington DC Regions Print Text Size: A A A RSS Feeds FeedbackShare Page Washington, DC Coaches can review the middle school regional locations listed below. Please note: Registrations are based on the location of your school. Please be sure to select the regional that is designated for your

358

Washington DC Regions | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Washington DC Regions Washington DC Regions National Science Bowl® (NSB) NSB Home About High School High School Students High School Coaches High School Regionals High School Rules, Forms, and Resources Middle School Attending National Event Volunteers 2013 Competition Results News Media WDTS Home Contact Information National Science Bowl® U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: 202-586-6702 E: National.Science.Bowl@science.doe.gov High School Regionals Washington DC Regions Print Text Size: A A A RSS Feeds FeedbackShare Page Washington, DC Coaches can review the high school regional locations listed below. Please note: Registrations are based on the location of your school. Please be sure to select the regional that is designated for your

359

D.C. Community Comes Together in the Name of Sustainability, Affordability  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

D.C. Community Comes Together in the Name of Sustainability, D.C. Community Comes Together in the Name of Sustainability, Affordability D.C. Community Comes Together in the Name of Sustainability, Affordability July 1, 2011 - 1:02pm Addthis Community leaders and members of the The New School for Design and Stevens Institute of Technology Solar Decathlon team.| Courtesy of Lisa Bleich Community leaders and members of the The New School for Design and Stevens Institute of Technology Solar Decathlon team.| Courtesy of Lisa Bleich Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs What are the key facts? This 2011 Solar Decathlon team is partnering with D.C. community members and Habitat for Humanity to build an energy efficient home that will be moved to the Deanwood neighborhood of Washington, D.C. following

360

Harnessing the Power of the Sun, Solar Impulse Plane Lands in DC Area |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Harnessing the Power of the Sun, Solar Impulse Plane Lands in DC Harnessing the Power of the Sun, Solar Impulse Plane Lands in DC Area Harnessing the Power of the Sun, Solar Impulse Plane Lands in DC Area June 17, 2013 - 6:15pm Addthis Watch Energy Secretary Ernest Moniz give remarks at the Solar Impulse Press Conference in Washington, D.C. Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs More on Solar Impulse View a slideshow of photos from today's event on Secretary Moniz's Facebook Page. Today, Secretary Moniz spoke at an event welcoming the arrival of the solar-powered Solar Impulse plane at Dulles International Airport near Washington, D.C. During the event, held at the National Air and Space Museum's Steven F. Udvar-Hazy Center, Secretary Moniz highlighted the rapid expansion of the solar industry in the United States over the past

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Harnessing the Power of the Sun, Solar Impulse Plane Lands in DC Area |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Harnessing the Power of the Sun, Solar Impulse Plane Lands in DC Harnessing the Power of the Sun, Solar Impulse Plane Lands in DC Area Harnessing the Power of the Sun, Solar Impulse Plane Lands in DC Area June 17, 2013 - 6:15pm Addthis Watch Energy Secretary Ernest Moniz give remarks at the Solar Impulse Press Conference in Washington, D.C. Erin R. Pierce Erin R. Pierce Digital Communications Specialist, Office of Public Affairs More on Solar Impulse View a slideshow of photos from today's event on Secretary Moniz's Facebook Page. Today, Secretary Moniz spoke at an event welcoming the arrival of the solar-powered Solar Impulse plane at Dulles International Airport near Washington, D.C. During the event, held at the National Air and Space Museum's Steven F. Udvar-Hazy Center, Secretary Moniz highlighted the rapid expansion of the solar industry in the United States over the past

362

Sustainable Energy Utility - D.C. Home Performance (District of Columbia) |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

D.C. Home Performance (District of D.C. Home Performance (District of Columbia) Sustainable Energy Utility - D.C. Home Performance (District of Columbia) < Back Eligibility Multi-Family Residential Residential Savings Category Other Program Info Start Date 06/14/2012 State District of Columbia Program Type Utility Rebate Program Rebate Amount $500 The District of Columbia Sustainable Energy Utility currently offers the D.C. Home Performance program (DCHP). DCHP provides a $500 incentive to properties which successfully complete qualifying home energy upgrades. This incentive is available to D.C. residents living in single-family homes, rowhomes (each unit is ground to sky) or converted (1 to 4 unit) apartments and rowhomes. Both owner-occupied homes and rental properties with the property owners' authorization are eligible to participate.

363

High Temperature, Buried Permanent Magnet, Brushless DC Motor  

E-Print Network (OSTI)

A high temperature magnetic bearing system using high temperature permanent magnets from Electron Energy Corporation (EEC) is under development. The system consists of two radial bearings, one thrust bearing, two radial catcher bearings and one motor. The purpose of this research is to develop one of the critical components of the system, namely, the High Temperature Permanent Magnet motor. A novel High Temperature Permanent Magnet (HTPM) Brushless DC(BLDC) motor capable of operating at 1000 degrees F (538 degrees C) is designed. HTPMs developed at Electron Energy Corporation are buried into the rotor. The high temperature motor is designed to produce 5.1kw of power at a top running speed of 20000 rpm. The numerical values of the motor voltage, power and torque output are predicted from calculations of the nonlinear finite element model of the motor. The motor stator is wound, potted, cured and high potential tested at 1000 degrees F. A servo amplifier from Advanced Motion Control is used to drive the high temperature motor. High temperature displacement sensors are set up for sensing the rotor position to form a closed loop motion control. However, the noise problem of the high temperature sensors causes a failure of this approach. An open loop approach is then developed and this approach succeeds in spinning the rotor with the capability of self-starting. The status of the full system assembling is introduced. Some other components of the system are briefly presented.

Zhang, Zhengxin

2010-08-01T23:59:59.000Z

364

Vacuum interrupters used for the interruption of high dc currents  

DOE Green Energy (OSTI)

Conventional ac vacuum interrupters are being used to interrupt currents in pulsed energy storage systems. They have been tested with dc currents of up to 37 kA. The limit to the current which can be successfully interrupted has been measured as a function of various parameters. Among these are (1) the size of the interrupter, (2) the magnitude of the counterpulse current, (3) the nature and flux rating of the saturable reactor used, and (4) the kind of ''snubber'' circuit used. Fragmentary data have also been collected on electrode erosion rates and on mechanical failure of the bellows. A description is given of the circuits used in these tests and of the results found for a representative selection of the commercially available domestic interrupters. More recently efforts have been made to increase the values found for the maximum interruptible current. The techniques used have included connecting interrupters in parallel and operating them in an impressed axial magnetic field. The results of this work are discussed.

Warren, R.W.

1977-01-01T23:59:59.000Z

365

DC switching regulated power supply for driving an inductive load  

DOE Patents (OSTI)

A power supply for driving an inductive load current from a dc power supply hrough a regulator circuit including a bridge arrangement of diodes and switching transistors controlled by a servo controller which regulates switching in response to the load current to maintain a selected load current. First and second opposite legs of the bridge are formed by first and second parallel-connected transistor arrays, respectively, while the third and fourth legs of the bridge are formed by appropriately connected first and second parallel connected diode arrays, respectively. The regulator may be operated in three "stages" or modes: (1) For current runup in the load, both first and second transistor switch arrays are turned "on" and current is supplied to the load through both transistor arrays. (2) When load current reaches the desired level, the first switch is turned "off", and load current "flywheels" through the second switch array and the fourth leg diode array connecting the second switch array in series with the load. Current is maintained by alternating between modes 1 and 2 at a suitable duty cycle and switching rate set by the controller. (3) Rapid current rundown is accomplished by turning both switch arrays "off", allowing load current to be dumped back into the source through the third and fourth diode arrays connecting the source in series opposition with the load to recover energy from the inductive load. The three operating states are controlled automatically by the controller.

Dyer, George R. (Norris, TN)

1986-01-01T23:59:59.000Z

366

Papers presented by the SL division at the 15th Particle Accelerator Conference, Washington, DC, USA, 17 - 20 May 1993  

E-Print Network (OSTI)

Papers presented by the SL division at the 15th Particle Accelerator Conference, Washington, DC, USA, 17 - 20 May 1993

CERN. Geneva

1993-01-01T23:59:59.000Z

367

Solar Decathlon at Home in the D.C. Community | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

at Home in the D.C. Community at Home in the D.C. Community Solar Decathlon at Home in the D.C. Community Addthis A New Energy-Efficient Home in the D.C. Community 1 of 27 A New Energy-Efficient Home in the D.C. Community On December 4, 2012, the Empowerhouse team, along with partners and community members, completed the installation of a permanent, two-family home in Washington, D.C. The home was originally showcased as part of the U.S Department of Energy's Solar Decathlon 2011. Image: Sarah Gerrity Date taken: 2012-12-04 12:22 2 of 27 The house is located in the D.C. neighborhood of Deanwood, which is just 10 miles from the National Mall. By installing the house nearby, the team was able to minimize shipping costs, therefore reducing the house's carbon footprint. Image: Sarah Gerrity Date taken: 2012-12-04 09:00

368

Temporal evolution of the electron energy distribution function in oxygen and chlorine gases under dc and ac fields  

E-Print Network (OSTI)

by an effective dc field which presumably trans- fers the same energy to the electrons. Although the effec- tive frequency of the electric field. The effective dc field is defined as (14) In the present work the energy(eV) FIG. 1. Steady-stateelectron energy distribution function for 0, dc fields of E/N= 10, 80, 150

Economou, Demetre J.

369

Analysis of a PM DC motor model for application in feedback design for electric-powered mobility vehicles  

Science Conference Proceedings (OSTI)

Accurate modelling of Permanent Magnet (PM) DC motors is a prerequisite for expedient feedback design of electric-powered mobility vehicles. This paper identifies the parameters in the ideal equations for PM DC motors and considers the methods ... Keywords: electric-powered mobility vehicles, feedback design, frictional torque, model accuracy, modelling, permanent magnet DC motors models

Patrick Wolm; XiaoQi Chen; J. Geoffrey Chase; Warren Pettigrew; Christopher E. Hann

2010-08-01T23:59:59.000Z

370

Abstract--Environmentally friendly technologies such as photovoltaics and fuel cells are DC sources. In the current power  

E-Print Network (OSTI)

Abstract--Environmentally friendly technologies such as photovoltaics and fuel cells are DC sources, fuel cells and photovoltaics, produce direct current (DC). Currently, power system infrastructures that wish to incorporate fuel cells and photovoltaics must first convert the DC power produced

Tolbert, Leon M.

371

Energy savings from direct-DC in U.S. residential buildings  

NLE Websites -- All DOE Office Websites (Extended Search)

savings from direct-DC in U.S. residential buildings savings from direct-DC in U.S. residential buildings Title Energy savings from direct-DC in U.S. residential buildings Publication Type Journal Article Year of Publication 2013 Authors Vossos, Vagelis, Karina Garbesi, and Hongxia Shen Journal Energy and Buildings Volume Volume 68, Part A Pagination 223-231 Date Published 09/2013 Keywords Direct current (DC), energy conservation, Photovoltaics (PV), residential buildings Abstract An increasing number of energy-efficient appliances operate on direct current (DC) internally, offering the potential to use DC directly from renewable energy systems, thereby avoiding the energy losses inherent in converting power to alternating current (AC) and back. This paper investigates that potential for net-metered residences with on-site photovoltaics (PV) by modeling the net power draw of a 'direct-DC house' compared to that of a typical net-metered house with AC distribution, assuming identical DC-internal loads. The model comparisons were run for 14 cities in the United States, using hourly, simulated PV-system output and residential loads. The model tested the effects of climate and battery storage. A sensitivity analysis was conducted to determine how future changes in the efficiencies of power system components might affect potential energy savings. Based on this work, we estimate that net-metered PV residences could save 5% of their total electricity load for houses without storage and 14% for houses with storage. Direct-DC energy savings are sensitive to power system and appliance conversion efficiencies but are not significantly influenced by climate.

372

Measured Savings of DC to AC Drive Retrofit in Plastic Extrusion  

E-Print Network (OSTI)

This paper presents the potential electrical energy efficiency improvements for utilizing alternating current (AC) motors controlled by variable frequency drives (VFD) in place of direct current (DC) motors to drive plastic extrusion machines. A brief background on the extrusion process is presented along with typical extrusion machine electrical drive performance requirements. Motor performance characteristics and control strategies are described for both AC and DC machines. A case study is presented, where detailed electrical measurements were performed on two similar extrusion machines driven by a DC motor and an AC motor respectively. Electrical energy, demand, and cost savings are analyzed

Sfeir, R. A.

2008-01-01T23:59:59.000Z

373

103 Teams to Head to DOE's National Science Bowl in Washington, D.C. |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

3 Teams to Head to DOE's National Science Bowl in Washington, 3 Teams to Head to DOE's National Science Bowl in Washington, D.C. 103 Teams to Head to DOE's National Science Bowl in Washington, D.C. April 23, 2009 - 12:00am Addthis WASHINGTON, DC- Students from 67 high school teams and 36 middle school teams from across the nation will compete next weekend for championship titles in the U.S. Department of Energy's (DOE) National Science Bowl in Washington D.C. The National Science Bowl is the nation's largest academic competition of its kind and the only one sponsored by a federal agency. The National Finals will be held from May 2 through May 4. Each of the participating teams emerged from a regional competition to earn an all-expense-paid trip to the event. The participating teams represent 42 states, the District of Columbia, the U.S. Virgin Islands and Puerto

374

EETD Researchers Contribute to Efficient DC-Power Data Center at UC San  

NLE Websites -- All DOE Office Websites (Extended Search)

EETD Researchers Contribute to Efficient DC-Power Data Center at UC San EETD Researchers Contribute to Efficient DC-Power Data Center at UC San Diego Interior of the GreenLight Instrument October 2010 The California Institute for Telecommunications and Information Technology (Calit2) at UC San Diego is operating a set of servers in a campus data center on 380-volt DC (direct current) power. The new modular data center on campus has sensors and other instruments to measure the energy efficiency of information and communication technologies, the infrastructure that supports it - and to help researchers build greener IT systems and software. The direct current technology in the center eliminates the need for multiple conversions back and forth between AC to DC power, which are used in AC-based data centers that are in common use today. This technology

375

News From the D.C. Office: New Work With Motor Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

3 Aerial view of Washington D.C. 3 Aerial view of Washington D.C. News From the D.C. Office New Work With Motor Systems The Energy Analyis Program has recently started a project for the DOE Office of Industrial Technologies Motor Challenge Program. This project, to be carried out in the Washington D.C. office, extends the office's work to an exciting new area of electric motor system efficiency. Motor systems consume about 70 percent of the electric energy used in the U.S. industrial sector. Emphasis on motor efficiency in recent years has led to passage of efficiency standards, to become effective in 1997, for most common types of motors. This is extremely important because the cost of energy consumed by a motor during its useful life typically far exceeds its acquisition cost. Frequently, significant system-level opportunities

376

GRR Update Meeting scheduled for 9/13 in D.C. | OpenEI Community  

Open Energy Info (EERE)

GRR Update Meeting scheduled for 9/13 in D.C. GRR Update Meeting scheduled for 9/13 in D.C. Home > Groups > Geothermal Regulatory Roadmap Kyoung's picture Submitted by Kyoung(155) Contributor 6 September, 2012 - 08:51 D.C. GRR meeting update The next Geothermal Regulatory Roadmap update meeting will be held in Washington, D.C. on Thursday, September 13 from 2-4 p.m. (ET). We will be reviewing the progress to date, giving a demonstration on accessing the roadmap on OpenEI, and presenting preliminary analysis of the roadmapping effort. If you are interesting in attending this workshop, please e-mail Stacee Foster to receive an official invitation. Groups: Geothermal Regulatory Roadmap Login to post comments Kyoung's blog Latest blog posts Kyoung Geothermal NEPA Workshop at GRC Posted: 14 Oct 2013 - 20:19 by Kyoung

377

News From the D.C. Office: Greenhouse Gas Mitigation Workshops  

NLE Websites -- All DOE Office Websites (Extended Search)

Aerial view of Washington D.C. Aerial view of Washington D.C. News From the D.C. Office Greenhouse Gas Mitigation Workshops LBNL brought technical training to four continents this summer with a series of regional greenhouse gas mitigation workshops. As part of LBNL's continued work on the U.S. Country Studies Program (USCSP), staff members of the Energy Analysis Program from Washington, D.C. and Berkeley worked together to put on workshops in Warsaw, Poland; Cancun, Mexico; Arusha, Tanzania; and Seoul, Korea. LBNL began working with USCSP more than a year and a half ago, when it was awarded the contract to provide mitigation assistance to some 35 countries. The Program grew out of the U.S.'s commitment to help developing and transitional countries address climate-change issues- specifically to

378

News From the D.C. Office: Presidential Mission on Energy Investment in  

NLE Websites -- All DOE Office Websites (Extended Search)

3 Aerial view of Washington D.C. 3 Aerial view of Washington D.C. News From the D.C. Office Presidential Mission on Energy Investment in Pakistan Secretary of Energy Hazel O'Leary led a presidential mission on energy investment in the Islamic Republic of Pakistan September 19-25, 1994. Stephen Wiel, who heads the Energy and Environment Division's Washington D.C. Project Office, participated in the mission. It was the first visit to Pakistan by a U.S. cabinet member for a nonmilitary purpose: to build economic bridges and an enhanced business relationship between the two countries. Members of the mission were assigned to work on oil and natural gas, coal, rural development and renewables, energy efficiency and environment, and electricity (including generation, transmission, and distribution). Stephen

379

OLENDER REPORTING, INC. 1100 Connecticut Ave., NW, Suite 810, Washington, DC  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

100 Connecticut Ave., NW, Suite 810, Washington, DC 100 Connecticut Ave., NW, Suite 810, Washington, DC 20036 Washington: (202) 898-1108 / Baltimore: (410) 752-3376 Toll Free: (888) 445-3376 1 Electricity Advisory Committee Meeting 8:33 a.m. through 2:49 p.m. October 29, 2010 OLENDER REPORTING, INC. 1100 Connecticut Ave., NW, Suite 810, Washington, DC 20036 Washington: (202) 898-1108 / Baltimore: (410) 752-3376 Toll Free: (888) 445-3376 2 National Rural Electric Cooperative Conference Center 4301 Wilson Boulevard Arlington, VA 22203 OLENDER REPORTING, INC. 1100 Connecticut Ave., NW, Suite 810, Washington, DC 20036 Washington: (202) 898-1108 / Baltimore: (410) 752-3376 Toll Free: (888) 445-3376 3 ELECTRICITY ADVISORY MEMBERS PRESENT: Richard Cowart

380

Washington, D.C. : essays on the city form of a capital  

E-Print Network (OSTI)

This thesis is an exploration of the city form of Washington. D.C. through four independent essays. Each essay examines a different aspect of the city: its monumentality as determined by its relationship with the nation ...

Kousoulas, George

1985-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

News From the D.C. Office: Energy-Efficient Office Equipment...  

NLE Websites -- All DOE Office Websites (Extended Search)

From the D.C. Office Energy-Efficient Office Equipment Around the World... Energy consumption from office-equipment use continues to grow unabated because of the strong growth...

382

Control method for peak power delivery with limited DC-bus ...  

A method for driving a neutral point-clamped multi-level voltage source inverter supplying a synchronous motor is provided. A DC current is received at a neutral ...

383

ac and dc current-induced motion of a 360 degrees domain wall  

E-Print Network (OSTI)

he response of 360° [360 degrees]domain walls in narrow magnetic stripes to applied dc and ac currents, investigated by micromagnetic simulation, differs qualitatively from the response of 180° [180 degrees] domain walls. ...

Mascaro, Mark D.

384

BERAC Meeting, February 16-17, 2012, Washington, DC| U.S. DOE Office of  

Office of Science (SC) Website

February 16-17, 2012, Washington, DC February 16-17, 2012, Washington, DC Biological and Environmental Research Advisory Committee (BERAC) BERAC Home Meetings BERAC Minutes BERAC Minutes Archive Members Charges/Reports Charter .pdf file (40KB) BER Committees of Visitors BER Home Meetings BERAC Meeting, February 16-17, 2012, Washington, DC Print Text Size: A A A RSS Feeds FeedbackShare Page BERAC Meeting February 16-17, 2012 Washington, DC Agenda .pdf file (25KB) Presentations William Brinkman, Comments from the Director, Office of Science .pdf file (24.4MB) Sharlene Weatherwax, State of BER Report .pdf file (4.3MB) Eddy Rubin, Joint Genome Institute Update .ppt file (18.0MB) Allison Campbell, Environmental Molecular Sciences Laboratory (EMSL) Update .pdf file (17.8MB) Adam Arkin, Knowledgebase Discussion .pdf file (8.9MB)

385

BERAC Meeting April 30 - May 1, 2003 Washington DC | U.S. DOE Office of  

Office of Science (SC) Website

30 - May 1, 2003 Washington DC 30 - May 1, 2003 Washington DC Biological and Environmental Research Advisory Committee (BERAC) BERAC Home Meetings BERAC Minutes BERAC Minutes Archive Members Charges/Reports Charter .pdf file (40KB) BER Committees of Visitors BER Home Meetings BERAC Meeting April 30 - May 1, 2003 Washington DC Print Text Size: A A A RSS Feeds FeedbackShare Page BERAC Meeting April 30 - May 1, 2003 Washington, DC Agenda .pdf file (8KB) Presentations Teresa Fryberger .ppt file (5.9MB), Director, Environmental Remediation Sciences Division, Division and Draft Strategic Plan Overview Anna Palmisano .ppt file (16.6MB), Natural and Accelerated Bioremediation Research Program Update Roland Hirsch .ppt file (740KB), Environmental Management Science Program Bill Rogers .ppt file (10.6MB), Environmental Molecular Sciences

386

BERAC Meeting April 25-26, 2002 Washington, DC | U.S. DOE Office of Science  

Office of Science (SC) Website

25-26, 2002 Washington, DC 25-26, 2002 Washington, DC Biological and Environmental Research Advisory Committee (BERAC) BERAC Home Meetings BERAC Minutes BERAC Minutes Archive Members Charges/Reports Charter .pdf file (40KB) BER Committees of Visitors BER Home Meetings BERAC Meeting April 25-26, 2002 Washington, DC Print Text Size: A A A RSS Feeds FeedbackShare Page BERAC Meeting April 25-26, 2002 Washington DC Agenda .pdf file (6KB) Available Presentations James Decker .ppt file (22.1MB), Principal Deputy Director, Office of Science Rod Brown .ppt file (70KB), Deputy Undersecretary for Research, Education and Economics, USDA Ari Patrinos .ppt file (64KB), Associate Director for Biological & Environmental Research Dick Swaja .ppt file (74KB), National Institute of Biomedical Imaging and

387

BERAC Meeting December 3-4, 2002 Washington, DC | U.S. DOE Office of  

Office of Science (SC) Website

3-4, 2002 Washington, DC 3-4, 2002 Washington, DC Biological and Environmental Research Advisory Committee (BERAC) BERAC Home Meetings BERAC Minutes BERAC Minutes Archive Members Charges/Reports Charter .pdf file (40KB) BER Committees of Visitors BER Home Meetings BERAC Meeting December 3-4, 2002 Washington, DC Print Text Size: A A A RSS Feeds FeedbackShare Page BERAC Meeting December 3-4, 2002 Washington, DC Agenda .pdf file (6KB) Presentations Genomes to Life Facilities Marvin Frazier, DOE .ppt file (5.0MB), User Facilities for 21st Century Systems Biology Eric Ackerman, PNNL .ppt file (1.9MB), Facility I: Production and Characterization of Proteins Michelle Buchanan, ORNL .ppt file (4.3MB), Facility II: Whole Proteome Analysis Lee Makowski, ANL .ppt file (8.5MB), Characterization and Imaging of

388

BERAC Meeting July 10-11, 2006 Washington, DC | U.S. DOE Office of Science  

Office of Science (SC) Website

July 10-11, 2006 Washington, DC July 10-11, 2006 Washington, DC Biological and Environmental Research Advisory Committee (BERAC) BERAC Home Meetings BERAC Minutes BERAC Minutes Archive Members Charges/Reports Charter .pdf file (40KB) BER Committees of Visitors BER Home Meetings BERAC Meeting July 10-11, 2006 Washington, DC Print Text Size: A A A RSS Feeds FeedbackShare Page BERAC Meeting July 10-11, 2006 Washington, DC Agenda .pdf file (14KB) Presentations James Tiedje .ppt file (123KB), Discussion of Final Report of the BERAC Review of the JGI Jim Bristow .ppt file (2.8MB), JGI, Progress in addressing BERAC Recommendations Jeff Gaffney .pdf file (6.6MB), ANL, Reconfigured Atmospheric Science Program and the 2006 Mexico City Campaign David Thomassen .ppt file (119KB), State of BER Mike Kuperberg .ppt file (9.8MB), Introduction to EMSL

389

BERAC Meeting November 29-30, 2007 Washington, DC | U.S. DOE Office of  

Office of Science (SC) Website

November 29-30, 2007 Washington, DC November 29-30, 2007 Washington, DC Biological and Environmental Research Advisory Committee (BERAC) BERAC Home Meetings BERAC Minutes BERAC Minutes Archive Members Charges/Reports Charter .pdf file (40KB) BER Committees of Visitors BER Home Meetings BERAC Meeting November 29-30, 2007 Washington, DC Print Text Size: A A A RSS Feeds FeedbackShare Page BERAC Meeting November 29-30, 2007 Washington, DC Agenda .pdf file (9KB) Presentations BER Updates on BERAC Reports Jeff Amthor .ppt file (11.5MB), Free Air Carbon Dioxide Enrichment (FACE) Report Bob Vallario .ppt file (749KB), Integrated Assessment Program Report David Thomassen .ppt file (651KB), Climate Change Committee of Visitors Report Update on BERAC Charges Jim Adelstein .ppt file (785KB), Low Dose Program Review

390

News From the D.C. Office: Seminars Explore Energy Policies & Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

3 Aerial view of Washington D.C. 3 Aerial view of Washington D.C. News From the D.C. Office Seminars Explore Energy Policies & Technologies As part of our effort to communicate with customers and colleagues in the Washington area, the LBNL-D.C. office sponsors a series of breakfast seminars on research and policy topics of current interest. We've held six seminars this spring, each attended by 15 to 25 invited guests from the Department of Energy, the Environmental Protection Agency, the Agency for International Development, nongovernmental organizations, Congressional committee staff, and D.C. staff of other national laboratories. On March 2, Jim McMahon of LBNL's Energy Analysis Program described LBNL's important contribution to national energy-efficiency standards for appliances. LBNL has provided analytical support to DOE for more than 15

391

BERAC Meeting November 13-14, 2003 Washington, DC | U.S. DOE Office of  

Office of Science (SC) Website

13-14, 2003 Washington, DC 13-14, 2003 Washington, DC Biological and Environmental Research Advisory Committee (BERAC) BERAC Home Meetings BERAC Minutes BERAC Minutes Archive Members Charges/Reports Charter .pdf file (40KB) BER Committees of Visitors BER Home Meetings BERAC Meeting November 13-14, 2003 Washington, DC Print Text Size: A A A RSS Feeds FeedbackShare Page BERAC Meeting November 13-14, 2003 Washington, DC Agenda .pdf file (12KB) Presentations Mark Humayun .ppt file (8.4MB), The Artificial Retina Project Chris Stubbs .ppt file (10.7MB), Computational Aspects of Medical Imaging Pat Dehmer .ppt file (34.2MB), Nanoscience and Hydrogen Initiatives Jim Mahoney .ppt file (761KB), The U.S. Climate Change Science Program: Strategic Planning to Implementation David Conover .ppt file (573KB), U.S. Climate Change Technology Program

392

BERAC Meeting April 20-21, 2005 Washington DC | U.S. DOE Office of Science  

Office of Science (SC) Website

April 20-21, 2005 Washington DC April 20-21, 2005 Washington DC Biological and Environmental Research Advisory Committee (BERAC) BERAC Home Meetings BERAC Minutes BERAC Minutes Archive Members Charges/Reports Charter .pdf file (40KB) BER Committees of Visitors BER Home Meetings BERAC Meeting April 20-21, 2005 Washington DC Print Text Size: A A A RSS Feeds FeedbackShare Page BERAC Meeting April 20-21, 2005 Washington DC Agenda .pdf file (15KB) Presentations Ray Orbach .ppt file (134KB), Advancing Energy, Economic and National Security... Dave Bader .ppt file (36KB), Subcommittee Report on the Need for Enhanced Research on Cloud Parameterization Methods... Peter Lunn .ppt file (215KB), Status Report on Restructuring of Aerosol Research Program Jerry Elwood .ppt file (552KB), New Charge to Review Terrestrial Carbon

393

BERAC Meeting April 29-30, 2004 Washington DC | U.S. DOE Office of Science  

Office of Science (SC) Website

29-30, 2004 Washington DC 29-30, 2004 Washington DC Biological and Environmental Research Advisory Committee (BERAC) BERAC Home Meetings BERAC Minutes BERAC Minutes Archive Members Charges/Reports Charter .pdf file (40KB) BER Committees of Visitors BER Home Meetings BERAC Meeting April 29-30, 2004 Washington DC Print Text Size: A A A RSS Feeds FeedbackShare Page BERAC Meeting April 29-30, 2004 Washington, DC Agenda .pdf file (15KB) Presentations Ray Orbach .ppt file (1.5MB) Ari Patrinos .ppt file (72.2MB), The State of BER Jill Banfield .ppt file (20.5MB), Structure, Reactivity, and Behavior of Nanoparticles in the Environment Steve Larson .ppt file (420KB), Radiopharmaceutical Subcommittee Report Joel Parriott/Bill Valdez .ppt file (710KB), Program Plans and Program Assessment Rating Tool (PART) Roadmaps

394

BERAC Meeting December 5-6, 2005 Washington, DC| U.S. DOE Office of Science  

Office of Science (SC) Website

5-6, 2005 Washington, DC 5-6, 2005 Washington, DC Biological and Environmental Research Advisory Committee (BERAC) BERAC Home Meetings BERAC Minutes BERAC Minutes Archive Members Charges/Reports Charter .pdf file (40KB) BER Committees of Visitors BER Home Meetings BERAC Meeting December 5-6, 2005 Washington, DC Print Text Size: A A A RSS Feeds FeedbackShare Page BERAC Meeting December 5-6, 2005 Washington, DC Agenda .pdf file (14KB) Presentations Mike Kuperberg .ppt file (68KB) and Andy Felmy .ppt file (9.8MB), EMSL Update: Reviews, Action Plan & Progress Ari Patrinos .ppt file (80KB), State of BER Warren Washington .ppt file (152KB), Discussion of the TCCRP subcommittee Report George Sgouros .pdf file (42KB), SNM, Public Comment Dan Hitchcock .ppt file (848KB), Dinner Talk, High Performance Computing

395

BERAC Meeting March 9-11, 2011 Washington, DC | U.S. DOE Office of Science  

Office of Science (SC) Website

March 9-11, 2011 Washington, DC March 9-11, 2011 Washington, DC Biological and Environmental Research Advisory Committee (BERAC) BERAC Home Meetings BERAC Minutes BERAC Minutes Archive Members Charges/Reports Charter .pdf file (40KB) BER Committees of Visitors BER Home Meetings BERAC Meeting March 9-11, 2011 Washington, DC Print Text Size: A A A RSS Feeds FeedbackShare Page BERAC Meeting March 9-10, 2011 Washington, DC Agenda .pdf file (7KB) Presentations Warren Washington .pptx file (29.0MB), The Present and Future of Climate Modeling William Brinkman .pptx file (25.3MB), Office of Science Report Sharlene Weatherwax .pdf file (446KB), State of BER Report Paul Bryan .pptx file (2.4MB), Activities in DOE's Office of Biomass Programs Gary Geernaert .pptx file (8.3MB), Climate and Environmental Sciences

396

DOE Solar Decathlon: News Blog » Blog Archive » D.C. Community...  

NLE Websites -- All DOE Office Websites (Extended Search)

D.C. Community Comes Together in the Name of Sustainability, Affordability Friday, July 1, 2011 By Erin Pierce Photo of a group of people wearing hardhats. In the middle, two...

397

DC Pro Software Tool Suite, Data Center Fact Sheet, Industrial Technologies Program  

Science Conference Proceedings (OSTI)

This fact sheet describes how DOE's Data Center Energy Profiler (DC Pro) Software Tool Suite and other resources can help U.S. companies identify ways to improve the efficiency of their data centers.

Not Available

2009-04-01T23:59:59.000Z

398

Definition: DC Resistivity Survey (Mise-Á-La-Masse) | Open Energy...  

Open Energy Info (EERE)

Mise--La-Masse) Jump to: navigation, search Dictionary.png DC Resistivity Survey (Mise--La-Masse) The Mise--La-Masse technique is variation of a Direct-Current Resistivity...

399

Optimizing Energy Savings from Direct-DC in U.S. Residential...  

NLE Websites -- All DOE Office Websites (Extended Search)

Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings NOTICE Due to the current lapse of federal funding, Berkeley Lab websites are accessible, but may not be...

400

ReHABit : claiming endangered structures in Washington DC to rethink subsidized housing  

E-Print Network (OSTI)

There is an affordable housing crisis today in Washington D.C. that is the result of a uniquely complicated history of a capital city and a current economic boom. This thesis responds to that crisis by proposing a new ...

Fowlkes, Catherine Kuhnle

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

DC Regional High School Science Bowl | U.S. DOE Office of Science...  

Office of Science (SC) Website

Bowl U.S. Department of Energy SC-27 Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: 202-586-6702 E: National.Science.Bowl@science.doe.gov Washington...

402

Aircraft Icing Environment in Low Ceiling Conditions near Washington, D.C.  

Science Conference Proceedings (OSTI)

Radiosonde temperature and humidity data were used to deduce the vertical distribution of clouds and aircraft icing conditions near Washington, D.C. when low ceilings occurred with surface temperatures near freezing. Twenty-three soundings from ...

Nathaniel B. Guttman; Richard K. Jeck

1987-06-01T23:59:59.000Z

403

An Acid Rain Study in the Washington, D.C. Area  

Science Conference Proceedings (OSTI)

A field study in the Washington, D.C. area explored the impact of urban emissions and mesoscale meteorology on precipitation chemistry. The study was a follow-up to an earlier, considerably more industrialized, study in the Philadelphia area; ...

A. A. N. Patrinos; M. J. Leach; R. M. Brown; R. L. Tanner; F. S. Binkowski

1989-09-01T23:59:59.000Z

404

DC power transmission from the Leningradskaya Nuclear Power Plant to Vyborg  

SciTech Connect

DC power transmission from the Leningradskaya Nuclear Power Plant (LAES) to city of Vyborg is proposed. This will provide a comprehensive solution to several important problems in the development and control of the unified power system (EES) of Russia.

Koshcheev, L. A. [JSC 'NIIPT' (Russian Federation); Shul'ginov, N. G. [JSC 'SO EES' (Russian Federation)

2011-05-15T23:59:59.000Z

405

Some Techniques and Uses of 2D-C Habit Classification Software for Snow Particles  

Science Conference Proceedings (OSTI)

A technique has been designed that uses observable properties of images from a 2D-C optical array probe (size, linearity, area, perimeter, and image density) to classify unsymmetrical ice particles into nine habit classes. Concentrations are ...

Edmond W. Holroyd III

1987-09-01T23:59:59.000Z

406

Optimizing radial basis functions by DC programming and its use in ...  

E-Print Network (OSTI)

Oct 12, 2009 ... Optimizing radial basis functions by D.C. programming and its use in direct search for global derivative-free optimization. An Le Thi Hoai(lethi ...

407

Society. 1155 Sixteenth Street N.W., Washington, DC 20036 Communicatio...  

NLE Websites -- All DOE Office Websites (Extended Search)

DC 20036 Communication Caged Quantum Dots Gang Han, Taleb Mokari, Caroline Ajo-Franklin, and Bruce E. Cohen J. Am. Chem. Soc., 2008, 130 (47), 15811-15813* DOI: 10.1021...

408

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

DOE Patents (OSTI)

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

Su, Gui-Jia (Knoxville, TN)

2005-11-29T23:59:59.000Z

409

Nonlinear modal interaction in HVDC/AC power systems with dc power modulation  

Science Conference Proceedings (OSTI)

In this paper investigation of nonlinear modal interaction using the normal form of vector fields technique is extended to HVDC/AC power systems with dc power modulation. The ac-dc interface equations are solved to form a state space model with second order approximation. Using the normal form technique, the system`s nonlinear dynamic characteristics are obtained. The proposed approach is applied to a 4-generator HVDC/AC test power system, and compare with the time domain solution.

Ni, Y.X. [Tsinghua Univ., Beijing (China); Vittal, V.; Kliemann, W.; Fouad, A.A. [Iowa State Univ., Ames, IA (United States)

1996-11-01T23:59:59.000Z

410

DC Arc Fault Detection and Circuit Interruption Technologies for Photovoltaic Systems  

Science Conference Proceedings (OSTI)

In the United States, much like the rest of the world, rapid growth in photovoltaic (PV) systems is currently taking place. These systems are being installed in open fields, on parking structures, and on residential or commercial rooftops. Unfortunately, electrical arcing within a PV system’s DC circuits has caused some fires. DC-sourced electrical fires are difficult to extinguish if arcing originates from unprotected source circuits within a PV array. Several high-visibility structural fires ...

2013-12-20T23:59:59.000Z

411

A Review of Initial Analysis and Early Market Data on DC Fast Charging  

Science Conference Proceedings (OSTI)

At present, battery electric vehicles (BEVs) have limited on-board energy storage, and their limited range is a concern for potential customers. Direct current (DC) Fast Charging offers a way to mitigate this concern, but there is considerable uncertainty about how DC Fast Chargers will integrate with the existing electricity system and what the business case will be for installing and operating these chargers. This technical update provides a preliminary analysis of several of the issues raised by ...

2013-12-07T23:59:59.000Z

412

DC Motor control using motor-generator set with controlled generator field  

DOE Patents (OSTI)

A d.c. generator is connected in series opposed to the polarity of a d.c. power source supplying a d.c. drive motor. The generator is part of a motor-generator set, the motor of which is supplied from the power source connected to the motor. A generator field control means varies the field produced by at least one of the generator windings in order to change the effective voltage output. When the generator voltage is exactly equal to the d.c. voltage supply, no voltage is applied across the drive motor. As the field of the generator is reduced, the drive motor is supplied greater voltage until the full voltage of the d.c. power source is supplied when the generator has zero field applied. Additional voltage may be applied across the drive motor by reversing and increasing the reversed field on the generator. The drive motor may be reversed in direction from standstill by increasing the generator field so that a reverse voltage is applied across the d.c. motor.

Belsterling, Charles A. (Norristown, PA); Stone, John (Medford, NJ)

1982-01-01T23:59:59.000Z

413

Data:81aaee9c-289f-4511-a9dc-df063dc6a89c | Open Energy Information  

Open Energy Info (EERE)

aaee9c-289f-4511-a9dc-df063dc6a89c aaee9c-289f-4511-a9dc-df063dc6a89c No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Hawley Public Utilities Comm Effective date: 2012/05/01 End date if known: Rate name: MINNKOTA WIND SURCHARGE - RESIDENTIAL Sector: Residential Description: Source or reference: http://www.hawley.govoffice.com/vertical/sites/%7B8CCD72A8-7BD3-4824-833E-37DBC780B17F%7D/uploads/may_2012_rate_sheet.pdf Source Parent: Comments Applicability Demand (kW) Minimum (kW): Maximum (kW): History (months): Energy (kWh) Minimum (kWh): Maximum (kWh): History (months): Service Voltage Minimum (V): Maximum (V):

414

Data:957ec156-bbe9-4d2c-925e-dc1880dc481d | Open Energy Information  

Open Energy Info (EERE)

ec156-bbe9-4d2c-925e-dc1880dc481d ec156-bbe9-4d2c-925e-dc1880dc481d No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Jemez Mountains Elec Coop, Inc Effective date: End date if known: Rate name: Residential Time of Use Rates Sector: Residential Description: In order to benefit from Time of Use you MUST be able to coordinate most of your electric usage during the Off-Peak Hours. This means using your major appliances such as Electric Thermal Storage Heating Units, baseboard heating (if possible), electric clothes dryers, electric ovens, irons, compressors, power tools, etc. during the Off-Peak hours. Also placing timers on electric appliances like water heaters, hot tubs, saunas and freezers to only use power during Off-Peak hours will help. Any appliance you can operate during the Off-Peak hours will lower your electric utility bill.

415

Data:9910e9da-d3dc-4dc7-b69a-3616121268f7 | Open Energy Information  

Open Energy Info (EERE)

e9da-d3dc-4dc7-b69a-3616121268f7 e9da-d3dc-4dc7-b69a-3616121268f7 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: City of Lodi, Wisconsin (Utility Company) Effective date: 2010/03/01 End date if known: Rate name: Cp-2 Large Power Time-of-Day Service above 200kW Demand 8am-8pm Primary Metering Discount with Parallel Generation(20kW or less) Sector: Industrial Description: Power Cost Adjustment Clause - All metered rates shall be subject to a positive or negative power cost adjustment charge equivalent to the amount by which the current cost of power (per kilowatt-hour of sales) is greater or lesser than the base cost of power purchased (per kilowatt-hour of sales). The base cost of power (U) is $0.0811 per kilowatt-hour.

416

Data:634ec885-b5dc-4eaa-a681-60dc6f11cc99 | Open Energy Information  

Open Energy Info (EERE)

ec885-b5dc-4eaa-a681-60dc6f11cc99 ec885-b5dc-4eaa-a681-60dc6f11cc99 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Village of New Glarus, Wisconsin (Utility Company) Effective date: 2010/03/01 End date if known: Rate name: Cp-1 Small Power Service Primary Metering Discount with Parallel Generation(20kW or less) Sector: Industrial Description: Power Cost Adjustment Clause - All metered rates shall be subject to a positive or negative power cost adjustment charge equivalent to the amount by which the current cost of power (per kilowatt-hour of sales) is greater or lesser than the base cost of power purchased (per kilowatt-hour of sales). The base cost of power (U) is $0.0721 per kilowatt-hour.

417

Data:5d0b965d-a4cb-440c-b8dc-7fea4c4dc573 | Open Energy Information  

Open Energy Info (EERE)

d-a4cb-440c-b8dc-7fea4c4dc573 d-a4cb-440c-b8dc-7fea4c4dc573 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: City of Escanaba, Michigan (Utility Company) Effective date: 2012/07/01 End date if known: Rate name: Suburban Water Heating Energy Rate Commercial Sector: Commercial Description: To any customer for separately metered controlled water heating, subject to such wiring rules and regulations as are established by the utility. For as long as the City has costs associated with the ownership of the power plant, these costs shall be recovered through the following power plant cost adjustment factor:$0.01000 for all kWh, all service classes. State of Michigan P.A. 295, of Public Acts 2008, commonly referred to as the Clean, Renewable and Efficient Energy Act mandates the electric utility collect the following charges from each electric utility customer: Commercial $0.00200/kWh. The sum of these charges is reflected in adjustments to the energy charge.

418

Data:C20dc812-2e59-42a7-bb52-819a35ab8dc4 | Open Energy Information  

Open Energy Info (EERE)

dc812-2e59-42a7-bb52-819a35ab8dc4 dc812-2e59-42a7-bb52-819a35ab8dc4 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: City of College Station, Texas (Utility Company) Effective date: 2009/07/23 End date if known: Rate name: Medium Commercial - Schedule LP -1 - Primary Service Sector: Commercial Description: Applicable to all commercial or industrial customers where service is taken through one (1) meter at one (1) point of delivery and where the monthly kilowatt demand is equal to or greater than fifteen (15) kW and less than three hundred (300) kW. Before service is furnished hereunder, an individual service agreement contract between the customer and the City may be required outlining all details of the service to be supplied, the terms of the contract, and the obligations of each party.

419

Data:7f136b27-83c9-4c37-9dc2-e580d90dc602 | Open Energy Information  

Open Energy Info (EERE)

7-83c9-4c37-9dc2-e580d90dc602 7-83c9-4c37-9dc2-e580d90dc602 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Public Service Co of NH Effective date: 2012/01/01 End date if known: Rate name: 40W HIGH PRESSURE SODIUM LAMP Sector: Lighting Description: Source or reference: http://www.nu.com/PSNHTariffPDFs/tariff070107.pdf Source Parent: Comments Applicability Demand (kW) Minimum (kW): Maximum (kW): History (months): Energy (kWh) Minimum (kWh): Maximum (kWh): History (months): Service Voltage Minimum (V): Maximum (V): Character of Service Voltage Category: Phase Wiring: << Previous 1 2 3 Next >> << Previous

420

Data:20897232-72c1-4dc1-a001-d1b55c0dc4f8 | Open Energy Information  

Open Energy Info (EERE)

97232-72c1-4dc1-a001-d1b55c0dc4f8 97232-72c1-4dc1-a001-d1b55c0dc4f8 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: City of Bonners Ferry, Idaho (Utility Company) Effective date: 2009/10/01 End date if known: Rate name: Large Commercial: B3PO Sector: Commercial Description: Note: $10.00 added to Fixed monthly charge if Remote Read Device is used. Source or reference: Rates Binder 1, Illinois State University Source Parent: Comments Applicability Demand (kW) Minimum (kW): Maximum (kW): History (months): Energy (kWh) Minimum (kWh): Maximum (kWh): History (months): Service Voltage Minimum (V): Maximum (V):

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they are not comprehensive nor are they the most current set.
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421

Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings  

DOE Green Energy (OSTI)

An increasing number of energy efficient appliances operate on direct current (DC) internally, offering the potential to use DC from renewable energy systems directly and avoiding the losses inherent in converting power to alternating current (AC) and back. This paper investigates that potential for net-metered residences with on-site photovoltaics (PV) by modeling the net power draw of the ‘direct-DC house’ with respect to today’s typical configuration, assuming identical DC-internal loads. Power draws were modeled for houses in 14 U.S. cities, using hourly, simulated PV-system output and residential loads. The latter were adjusted to reflect a 33% load reduction, representative of the most efficient DC-internal technology, based on an analysis of 32 electricity end-uses. The model tested the effect of climate, electric vehicle (EV) loads, electricity storage, and load shifting on electricity savings; a sensitivity analysis was conducted to determine how future changes in the efficiencies of power system components might affect savings potential. Based on this work, we estimate that net-metered PV residences could save 5% of their total electricity load for houses without storage and 14% for houses with storage. Based on residential PV penetration projections for year 2035 obtained from the National Energy Modeling System (2.7% for the reference case and 11.2% for the extended policy case), direct-DC could save the nation 10 trillion Btu (without storage) or 40 trillion Btu (with storage). Shifting the cooling load by two hours earlier in the day (pre-cooling) has negligible benefits for energy savings. Direct-DC provides no energy savings benefits for EV charging, to the extent that charging occurs at night. However, if charging occurred during the day, for example with employees charging while at work, the benefits would be large. Direct-DC energy savings are sensitive to power system and appliance conversion efficiencies but are not significantly influenced by climate. While direct-DC for residential applications will most likely arise as a spin-off of developments in the commercial sector—because of lower barriers to market entry and larger energy benefits resulting from the higher coincidence between load and insolation—this paper demonstrates that there are substantial benefits in the residential sector as well. Among residential applications, space cooling derives the largest energy savings from being delivered by a direct-DC system. It is the largest load for the average residence on a national basis and is particularly so in high-load regions. It is also the load with highest solar coincidence.

Garbesi, Karina; Vossos, Vagelis; Sanstad, Alan; Burch, Gabriel

2011-10-13T23:59:59.000Z

422

Bang-bang-type optimal constant current control of parallel ac-dc power transmission systems  

SciTech Connect

The transient stability of an ac-dc hybrid system can be improved greatly by controlling the power flow of the dc transmission line. In this study the optimal changeover curve of dc current setting value on the phase plane with a quadratic curve are approximated. The coefficients of this curve are calculated in advance taking into account the loading condition of the power system and hence the proposed control scheme can be used for emergency control of the power system. The main conclusions from this study were that: to facilitate transient stability analysis, the dc transmission line is represented by equivalent load admittances, which vary every second with the operating condition of the transmission line; the action of the speed governor increases the damping coefficient of the power system and reduces the control time which means that the admissible range of the dc current setting value can be reduced by increasing the governor gain; and the optimal change-over curve of the dc current setting value is approximated by a quadratic curve, whose coefficients can be calculated in advance taking into account the loading condition of the power system. The suboptimal changeover curve thus obtained makes it possible to change the setting value of dc current without time delay in emergency condition. While the case of three-phase short-circuit fault was specifically discussed, it is possible to extend the results obtained to the case of successful or unsuccessful reclosing. The proposed method could also be applied to multimachine systems by using equivalent network reduction methods.

Kobayashi, H.; Ichiyanagi, K.

1977-01-01T23:59:59.000Z

423

International Energy Outlook 1998  

Gasoline and Diesel Fuel Update (EIA)

8) 8) Dis tri bu tion Cate gory UC-950 In ter na tional En ergy Out look 1998 April 1998 En ergy In for ma tion Ad min istra tion Of fice of In te grated Analy sis and Fore cast ing U.S. De part ment of En ergy Wash ing ton, DC 20585 This re port was pre pared by the En ergy In for ma tion Ad min istra tion, the in de pend ent sta tis ti cal and ana lyti cal agency within the De part ment of En ergy. The in for ma tion con tained herein should be at trib uted to the En ergy In for ma tion Ad min istra tion and should not be con strued as ad vo cat ing or re flect ing any pol icy po si tion of the De part ment of En ergy or of any other or gani za tion. Con tacts The Inter na tional Energy Out look is pre pared by the Energy Infor ma tion Admin istra tion (EIA). Gen eral

424

Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings  

NLE Websites -- All DOE Office Websites (Extended Search)

Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings Title Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings Publication Type Report LBNL Report Number LBNL-5193E Year of Publication 2011 Authors Garbesi, Karina, Vagelis Vossos, Alan H. Sanstad, and Gabriel Burch Document Number LBNL-5193E Pagination 59 Date Published October Publisher Lawrence Berkeley National Laboratory City Berkeley Abstract An increasing number of energy efficient appliances operate on direct current (DC) internally, offering the potential to use DC from renewable energy systems directly and avoiding the losses inherent in converting power to alternating current (AC) and back. This paper investigates that potential for net-metered residences with on-site photovoltaics (PV) by modeling the net power draw of the 'direct-DC house' with respect to today's typical configuration, assuming identical DC-internal loads. Power draws were modeled for houses in 14 U.S. cities, using hourly, simulated PV-system output and residential loads. The latter were adjusted to reflect a 33% load reduction, representative of the most efficient DC-internal technology, based on an analysis of 32 electricity end-uses. The model tested the effect of climate, electric vehicle (EV) loads, electricity storage, and load shifting on electricity savings; a sensitivity analysis was conducted to determine how future changes in the efficiencies of power system components might affect savings potential. Based on this work, we estimate that net-metered PV residences could save 5% of their total electricity load for houses without storage and 14% for houses with storage. Based on residential PV penetration projections for year 2035 obtained from the National Energy Modeling System (2.7% for the reference case and 11.2% for the extended policy case), direct-DC could save the nation 10 trillion Btu (without storage) or 40 trillion Btu (with storage). Shifting the cooling load by two hours earlier in the day (pre-cooling) has negligible benefits for energy savings. Direct-DC provides no energy savings benefits for EV charging, to the extent that charging occurs at night. However, if charging occurred during the day, for example with employees charging while at work, the benefits would be large. Direct-DC energy savings are sensitive to power system and appliance conversion efficiencies but are not significantly influenced by climate. While direct-DC for residential applications will most likely arise as a spin-off of developments in the commercial sector-because of lower barriers to market entry and larger energy benefits resulting from the higher coincidence between load and insolation-this paper demonstrates that there are substantial benefits in the residential sector as well. Among residential applications, space cooling derives the largest energy savings from being delivered by a direct-DC system. It is the largest load for the average residence on a national basis and is particularly so in high-load regions. It is also the load with highest solar coincidence.

425

Performance Study of K2CsSb Photocathode Inside a DC High Voltage Gun  

SciTech Connect

In the past decade, there has been considerable interest in the generation of tens of mA average current in a photoinjector. Until recently, GaAs:Cs cathodes and K{sub 2}CsSb cathodes have been tested successfully in DC and RF injectors respectively for this application. Our goal is to test the K{sub 2}CsSb photocathode inside a DC gun. Since the multialkali cathode is a compound with constant characteristics over its entire thickness, we anticipate that the lifetime issues seen in GaAs:Cs due to surface damage by ion bombardment would be minimized. Hence successful operation of the K{sub 2}CsSb cathode in a DC gun could lead to a relatively robust electron source capable of delivering ampere level currents. In order to test the performance of a K{sub 2}CsSb cathode in a DC gun, we have designed and built a load lock system that allows the fabrication of the cathode at Brookhaven National Lab (BNL) and its testing at Jefferson Lab (JLab). In this paper, we will present the performance of the K{sub 2}CsSb photocathode in the preparation chamber and in the DC gun.

McCarter J. L.; Rao T.; Smedley, J.; Grames, J.; Mammei, R.; Poelker, M.; Suleiman, R.

2011-09-01T23:59:59.000Z

426

Development of a dc-to-ac inverter based on waveshaping  

SciTech Connect

A new topology for utility-interactive, dc-ac inverters is explored. The approach is presently limited by available devices to the single-phase, 2 to 10 kW power levels typical of residential photovoltaic applications. The approach combines two of the three basic inverter operations - waveshaping and regulation - in a single dc-dc converter stage. The output of this stage is a full-wave rectified (unipolar) sine wave. An inversion stage follows, performing the third basic inverter operation. The output is a current sine wave. This approach features unity power factor and less than 2% total current harmonic distortion. A 1-kW prototype was constructed, using a buck (down) converter for the dc-dc stage switching at approximately 20 kHz. Efficiency was generally above 90% with a peak efficiency of 94%. A cost breakdown of the prototype indicated the inverter could be built to meet the DOE cost goals for this class of inverter.

Cox, C.H. III; Landsman, E.E.; Rasmussen, N.E.

1982-08-01T23:59:59.000Z

427

D)Ig,Ital Pred'icti've n-Line Energy t*imi4zat4ioon cheme for D-DC Converters  

E-Print Network (OSTI)

D)Ig,Ital Pred'icti've n-Line Energy t*imi4zat4ioon cheme for D-DC Converters Olivier Trescases1 energy conservation technique based on predicting the load current of a DC-DC converter that may feed-time and applied as feed-forward to the DC-DC converter in order to reduce the total energy drawn from the battery

Prodiæ, Aleksandar

428

One-dimensional hybrid simulation of the dc/RF combined driven capacitively coupled CF{sub 4} plasmas  

Science Conference Proceedings (OSTI)

We developed a one-dimensional hybrid model to simulate the dc/RF combined driven capacitively coupled plasma for CF{sub 4} discharges. The numerical results show the influence of the dc source on the plasma density distribution, ion energy distributions (IEDs), and ion angle distributions (IADs) on both RF and dc electrodes. The increase of dc voltage impels more ions with high energy to the electrode applied to the dc source, which makes the IEDs at the dc electrode shift toward higher energy and the peaks in IADs shift toward the small angle region. At the same time, it also decreases ion-energy at the RF electrode and enlarges the ion-angles which strike the RF electrode.

Wang Shuai [School of Science, Northeastern University, Shenyang 110891 (China); Xu Xiang; Wang Younian [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China)

2012-11-15T23:59:59.000Z

429

Data:Dc67dc28-a58d-434e-bd5b-bf00a13198f9 | Open Energy Information  

Open Energy Info (EERE)

dc28-a58d-434e-bd5b-bf00a13198f9 dc28-a58d-434e-bd5b-bf00a13198f9 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Oregon Trail El Cons Coop, Inc Effective date: 2011/10/01 End date if known: Rate name: Municipal and Highway Lighting - Sodium Vapor 200W, Schedule SL Sector: Lighting Description: Available in OTEC service territory for OTEC-owned municipal and highway lighting installed on existing facilities, subject to policies as established by the Board of Directors. Source or reference: http://www.otecc.com/rates.aspx Source Parent: Comments Rate is for photoelectric-operated fixtures operating approximately 4,100 hours per year.

430

Optimization of the design of DC-DC converters for improving the electromagnetic compatibility with the Front-End electronic for the super Large Hadron Collider Trackers  

E-Print Network (OSTI)

The upgrade of the Large Hadron Collider (LHC) experiments at CERN sets new challenges for the powering of the detectors. One of the powering schemes under study is based on DC-DC buck converters mounted on the front-end modules. The hard environmental conditions impose strict restrictions to the converters in terms of low volume, radiation and magnetic field tolerance. Furthermore, the noise emission of the switching converters must not affect the performance of the powered systems. A study of the sources and paths of noise of a synchronous buck converter has been made for identifying the critical parameters to reduce their emissions. As proof of principle, a converter was designed following the PCB layout considerations proposed and then used for powering a silicon strip module prototype for the ATLAS upgrade, in order to evaluate their compatibility.

Fuentes Rojas, Cristian Alejandro; Blanchot, G

2011-01-01T23:59:59.000Z

431

Exploring the Raft River geothermal area, Idaho, with the dc resistivity  

Open Energy Info (EERE)

Exploring the Raft River geothermal area, Idaho, with the dc resistivity Exploring the Raft River geothermal area, Idaho, with the dc resistivity method (Abstract) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Exploring the Raft River geothermal area, Idaho, with the dc resistivity method (Abstract) Details Activities (1) Areas (1) Regions (0) Abstract: GEOTHERMAL ENERGY; GEOTHERMAL FIELDS; ELECTRICAL SURVEYS; IDAHO; GEOTHERMAL EXPLORATION; RAFT RIVER VALLEY; ELECTRIC CONDUCTIVITY; GEOTHERMAL WELLS; KGRA; TEMPERATURE MEASUREMENT; ELECTRICAL PROPERTIES; EXPLORATION; GEOPHYSICAL SURVEYS; NORTH AMERICA; PACIFIC NORTHWEST REGION; PHYSICAL PROPERTIES; USA; WELLS Author(s): Zohdy, A.A.R.; Jackson, D.B.; Bisdorf, R.J. Published: Geophysics, 10/12/1975 Document Number: Unavailable DOI: Unavailable Source: View Original Journal Article

432

Dynamics of Charged-particle Between the DC Voltage Biased Plane-Parallel Conductors  

E-Print Network (OSTI)

The analytic description to an oscillating charged-particle between the DC voltage biased plane-parallel conductors is presented. Contrary to the traditional belief in which the oscillatory behavior of the charged-particle in a uniform DC field is attributed to the reversal in the sign of the particle's charge polarity as it rebounds between the two electrodes, the analytic description of the phenomenon presented in this work reveals that such requirement is not necessary for the charged-particle oscillation. Since the system involves a spatially oscillating charged-particle, it represents a natural prototype for illuminating electric dipole radiation. By varying the DC bias voltage across the plane-parallel electrodes, the frequency of radiated electromagnetic waves can be adjusted. The device based on charged-particle oscillation is predicted to generate the coherent electromagnetic waves in the microwave to the X-ray regions of the spectrum, which includes the technologically important terahertz, the infra...

Cho, Sung Nae

2011-01-01T23:59:59.000Z

433

Solar Decathlon at Home in the D.C. Community | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

at Home in the D.C. Community at Home in the D.C. Community Solar Decathlon at Home in the D.C. Community December 4, 2012 - 4:25pm Addthis One of the new homeowners, Layika Culley, and her family cut the ribbon to her new ultra-efficient home in the historic Deanwood neighborhood. For more photos of the Empowerhouse ribbon cutting, view our photo gallery. | Photo courtesy of Sarah Gerrity, Energy Department. One of the new homeowners, Layika Culley, and her family cut the ribbon to her new ultra-efficient home in the historic Deanwood neighborhood. For more photos of the Empowerhouse ribbon cutting, view our photo gallery. | Photo courtesy of Sarah Gerrity, Energy Department. Large south-facing windows allow for ample light without heating up the house. For more photos of the Empowerhouse ribbon cutting, view our photo gallery. | Photo courtesy of Sarah Gerrity, Energy Department.

434

News From the D.C. Office: E x p a n s i o n  

NLE Websites -- All DOE Office Websites (Extended Search)

3 Aerial view of Washington D.C. 3 Aerial view of Washington D.C. News From the D.C. Office E x p a n s i o n With a growing amount of project support work and increasing contacts with our Washington-based clients, the Environmental Energy Technologies Division (EETD) Washington Project Office is preparing for an expansion this spring. Two years after the office opened, we are making plans to more than double our present space and add a second meeting room, as well as additional demonstrations of efficient lighting, daylighting, and office technologies. The expanded space will be located either on a different floor of our current building at 1250 Maryland Ave. SW or in another building equally close to DOE headquarters. The Project office was established in Spring 1993 to enhance the Division's

435

News From the D.C. Office: Lubricating the Market for Energy-Efficient  

NLE Websites -- All DOE Office Websites (Extended Search)

3 Aerial view of Washington D.C. 3 Aerial view of Washington D.C. News From the D.C. Office Lubricating the Market for Energy-Efficient Products: Snake Oil vs. Slick Databases A handful of tools are essential for those involved in analyzing energy-efficiency policies or designing and implementing programs, no matter what their area of interest or institutional or individual role. My own short list includes: Detailed information on the structure of energy end-use and market trends. Empirical data that document the real-world performance of technologies and programs. Simulation models that use these data to shed light on the future impact of policies and programs. Accessible, accurate information on the efficiency, costs, and other characteristics of energy-efficient products. My colleagues could certainly add to this list, but for now I want to focus

436

Application to Export Electric Energy OE Docket No. EA-327-A DC Energy LLC:  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy LLC: Federal Register Notice, Volume 77, No. 102 - May 25, 2012 Energy LLC: Federal Register Notice, Volume 77, No. 102 - May 25, 2012 Application to Export Electric Energy OE Docket No. EA-327-A DC Energy LLC: Federal Register Notice, Volume 77, No. 102 - May 25, 2012 Application from DC Energy to export electric energy to Canada. Federal Register Notice. EA-327_A DC Energy CN.pdf More Documents & Publications Application to Export Electric Energy OE Docket No. EA-321-A to EA-325-A Emera Energy Svcs. Subsidiaries: Federal Register Notice, Volume 77, No. 102 - May 25, 2012 Application to Export Electric Energy OE Docket No. EA-386 IPR-GDF SUEZ Energy Marketing (GSEMNA): Federal Register Notice, Volume 77, No. 129 - July 5, 2012 Application to export electric energy OE Docket No. EA-315-A BP Energy: Federal Register Notice Volume 76, No. 217 - Nov. 9, 2011

437

In DC and Around the Nation: Join the National Day of Service on Saturday,  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

In DC and Around the Nation: Join the National Day of Service on In DC and Around the Nation: Join the National Day of Service on Saturday, January 19, 2013 In DC and Around the Nation: Join the National Day of Service on Saturday, January 19, 2013 January 16, 2013 - 9:22am Addthis Dot Harris Dot Harris The Honorable Dot Harris, Director, Office of Economic Impact and Diversity Americans in all 50 states can honor the legacy of Dr. Martin Luther King, Jr., though living out his values of service, care for your neighbor, and social justice. This is a way, as many have said, to "celebrate the man whose dream celebrates us all". Continuing a tradition he started at his first inauguration in 2009, President Obama is calling on Americans to participate in the National Day of Service on Saturday, January 19th, 2013.

438

Linked Open Data Workshop in Washington, D.C. | OpenEI Community  

Open Energy Info (EERE)

Linked Open Data Workshop in Washington, D.C. Linked Open Data Workshop in Washington, D.C. Home > Groups > Groups > Linked Open Data Workshop in Washington, D.C. Content Group Activity By term Q & A Feeds There are no feeds from external sites for this group. Groups Menu You must login in order to post into this group. Groups Menu You must login in order to post into this group. Group members (6) Managers: Jweers MHudman Rmckeel Recent members: Rmbot Monkeymosaic Reegle Recent content LOD Workshop Invitation LOD Workshop Invitation Event Planning Page Updated! Added Public Promotional Page! Notes from the Call more Group members (6) Managers: Jweers MHudman Rmckeel Recent members: Rmbot Monkeymosaic Reegle 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2084453927

439

National Science Bowl Brings Best and Brightest to DC | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Science Bowl Brings Best and Brightest to DC Science Bowl Brings Best and Brightest to DC National Science Bowl Brings Best and Brightest to DC April 24, 2012 - 11:14am Addthis The National Science Bowl is the largest science competition in the United States with more than 14,000 participants. The 113 finalist teams converge here at the 4-H Convention Center, in Chevy Chase, M.D. on Saturday and Sunday for the round-robin tournament that determines who advances to the "final 8" teams that advance to final double-elimination round. | Photo courtesy of the National Science Bowl The National Science Bowl is the largest science competition in the United States with more than 14,000 participants. The 113 finalist teams converge here at the 4-H Convention Center, in Chevy Chase, M.D. on Saturday and

440

News From the D.C. Office: Regional Builder Option Packages  

NLE Websites -- All DOE Office Websites (Extended Search)

8 Aerial view of Washington D.C. 8 Aerial view of Washington D.C. News From the D.C. Office Regional Builder Option Packages: A Simplified Guide for Constructing Energy Star® Homes ENERGY STAR Homes is part of a family of voluntary market-transformation programs sponsored by the U.S. Environmental Protection Agency and Department of Energy. The goal of the various Energy Star programs is to help energy users save money and reduce the emission of greenhouse gases by increasing the efficiency of various energy end uses, such as appliances and office equipment. Residential energy use accounts for approximately 20% of the carbon dioxide gas emissions in the U.S., from direct fuel combustion (natural gas, oil, wood) and emissions from electricity generation. The EPA estimates that the average house is responsible for

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Feasibility study of AC- and DC-side active filters for HVDC converter terminals  

SciTech Connect

This paper evaluates the technical and economic feasibility for active filtering of dc-side voltage harmonics and the ac-side current harmonics produced by a HVDC converter. The following designs for the active filter concepts are compared with the existing ac-side and dc-side passive filters used at the Dickinson terminal of the CU HVDC transmission line project: the dc-side active filter consisting of a capacitor coupled current injection source to actively neutralize the 12th, 24th and the 36th harmonics, and the ac-side active filter designed to provide the same fundamental frequency reactive VARs as the existing passive filters. Controlled currents are injected to actively filter the 11th and 13th harmonic currents. A cost comparison is made between these active filter designs and the cost of the existing passive filters supplied by the United Power Association (UPA).

Wong, C.; Mohan, N. (Minnesota Univ., Minneapolis, MN (USA). Dept. of Electrical Engineering); Wright, S.E. (Electric Power Research Inst., Palo Alto, CA (USA)); Mortenson, K.N. (United Power Association, Elk River, MN (USA))

1989-10-01T23:59:59.000Z

442

Speed Control of Multi Level Inverter Designed DC Series Motor with Neuro-Fuzzy Controllers  

E-Print Network (OSTI)

This paper describes the speed control of a DC series motor for an accurate and high-speed performance. A neural network based controlling operation with fuzzy modeling is suggested in this paper. The driver units of these machines are designed with a Multi-level inverter operation and are controlled by a common current control mechanism for an accurate and efficient driving technique for DC series motor. The neuro-fuzzy logic control technique is introduced to eliminate uncertainties in the plant parameters of the DC Series motors, and also considered as potential candidate for different applications to prove adequacy of the proposed control algorithm through simulations. The simulation result with such an approach is made and observed efficient over other controlling technique.

MadhusudhanaRao, G

2009-01-01T23:59:59.000Z

443

The War of the Currents: AC vs. DC Power | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The War of the Currents: AC vs. DC Power The War of the Currents: AC vs. DC Power The War of the Currents: AC vs. DC Power November 20, 2013 - 3:52pm Addthis Electrical transmission lines cross a snow-covered field in Dallas Dam, Oregon. | Photo courtesy of the Energy Department Flickr page. Electrical transmission lines cross a snow-covered field in Dallas Dam, Oregon. | Photo courtesy of the Energy Department Flickr page. Allison Lantero Allison Lantero Public Affairs Specialist, Office of Public Affairs Tesla vs. Edison Are you on #TeamTesla or #TeamEdison? Vote now on our website for your favorite inventor! Submit questions for Tesla and Edison experts to answer during our live Google+ Hangout on Thursday, Nov. 21, at 12:30 p.m. EST. Read our lists of top facts about Thomas Edison and Nikola Tesla.

444

News From the D.C. Office: Integrated Chiller Retrofits-Sharing Experience  

NLE Websites -- All DOE Office Websites (Extended Search)

3 Aerial view of Washington D.C. 3 Aerial view of Washington D.C. News From the D.C. Office Integrated Chiller Retrofits: Sharing Experience Makes "Cool Sense" A recent issue of the Center for Building Science News [Spring 1996, p.2] described the opportunities for significant energy savings from replacing older, inefficient chillers. These savings can be increased greatly if building owners and managers approach the chiller replacement not just as a requirement, but also as an opportunity-that of investing in other energy-saving measures that reduce cooling loads and lead to the downsizing of the chiller and related equipment. The Air-Conditioning and Refrigeration Institute estimates that 80,000 existing chillers using CFC refrigerants need to be replaced or converted to use HCFC or HFC refrigerants. Of these, about 20,000 will be replaced or

445

May 23 ChallengeHER Women Owned Small Business Event in Washington, DC |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

May 23 ChallengeHER Women Owned Small Business Event in Washington, May 23 ChallengeHER Women Owned Small Business Event in Washington, DC May 23 ChallengeHER Women Owned Small Business Event in Washington, DC May 6, 2013 - 4:48pm Addthis John Hale III John Hale III Director, Office of Small and Disadvantaged Business Utilization This April, the Small Business Administration (SBA) announced the ChallengeHER Campaign. The campaign is an exciting new initiative that leverages the resources of SBA, Women Impacting Public Policy, and American Express OPEN to promote the Women-Owned Small Business Federal Contract Program and bring more women-owned firms into the federal government's supply chain. Women owned small business are invited to join us on May 23 in Washington D.C. for a ChallengeHER summit. At this event, the federal government will

446

Measuring Accessibility and Explaining Trends in Commute Mode Choice in Washington, D.C. from 1970 - 2000.  

E-Print Network (OSTI)

??This study attempts to find a correlation between commuting modes in Washington DC and characteristics of the city and the people that they serve. It… (more)

Ryder, Jonathan

2009-01-01T23:59:59.000Z

447

Solid Silicone Elastomer Material(DC745U)-Historical Overview and New Experimental Results  

SciTech Connect

DC745U is a silicone elastomer used in several weapon systems. DC745U is manufactured by Dow Corning and its formulation is proprietary. Risk changes without notification to the customer. {sup 1}H and {sup 29}Si{l_brace}{sup 1}H{r_brace} NMR have previously determined that DC745U contains {approx} 98.5% dimethyl siloxane, {approx}1.5% methyl-phenyl siloxane, and a small amount (<1%) of vinyl siloxane repeat units that are converted to crosslinking sites. The polymer is filled with {approx} 38 wt.% of a mixture of fumed silica and quartz. Some conclusions are: (1) DMA shows that crystallization does have an effect on the mechanical properties of DC745U; (2) DMA shows that the crystallization is time and temperature dependent; (3) Mechanical tests show that DC745U undergo a crystalline transition at temperatures below -50 C; (4) Rate and temperature does not have an effect above crystalline transition; (5) Crystalline transition occurs faster at colder temperatures; (6) The material remains responsive and recovers after warming it to temperature above -40 C; (7) We were able to review all previous historical data on DC745U; (8) Identified specific gaps in materials understanding; (9) Developed design of experiments and testing methods to address gaps associated with post-curing and low temperature mechanical behavior; (10) Resolved questions of post-cure and alleviated concerns associated with low temperature mechanical behavior with soak time and temperature; and (11) This work is relevant to mission-critical programs and for supporting programmatic work for weapon research.

Ortiz-Acosta, Denisse [Los Alamos National Laboratory

2012-08-08T23:59:59.000Z

448

Performance Evaluation of a 4.5 kW (1.3 Refrigeration Tons) Air-Cooled Lithium Bromide/Water Solar Powered (Hot-Water-Fired) Absorption Unit  

Science Conference Proceedings (OSTI)

During the summer months, air-conditioning (cooling) is the single largest use of electricity in both residential and commercial buildings with the major impact on peak electric demand. Improved air-conditioning technology has by far the greatest potential impact on the electric industry compared to any other technology that uses electricity. Thermally activated absorption air-conditioning (absorption chillers) can provide overall peak load reduction and electric grid relief for summer peak demand. This innovative absorption technology is based on integrated rotating heat exchangers to enhance heat and mass transfer resulting in a potential reduction of size, cost, and weight of the "next generation" absorption units. Rotartica Absorption Chiller (RAC) is a 4.5 kW (1.3 refrigeration tons or RT) air-cooled lithium bromide (LiBr)/water unit powered by hot water generated using the solar energy and/or waste heat. Typically LiBr/water absorption chillers are water-cooled units which use a cooling tower to reject heat. Cooling towers require a large amount of space, increase start-up and maintenance costs. However, RAC is an air-cooled absorption chiller (no cooling tower). The purpose of this evaluation is to verify RAC performance by comparing the Coefficient of Performance (COP or ratio of cooling capacity to energy input) and the cooling capacity results with those of the manufacturer. The performance of the RAC was tested at Oak Ridge National Laboratory (ORNL) in a controlled environment at various hot and chilled water flow rates, air handler flow rates, and ambient temperatures. Temperature probes, mass flow meters, rotational speed measuring device, pressure transducers, and a web camera mounted inside the unit were used to monitor the RAC via a web control-based data acquisition system using Automated Logic Controller (ALC). Results showed a COP and cooling capacity of approximately 0.58 and 3.7 kW respectively at 35 C (95 F) design condition for ambient temperature with 40 C (104 F) cooling water temperature. This is in close agreement with the manufacturer data of 0.60 for COP and 3.9 kW for cooling capacity. This study resulted in a complete performance map of RAC which will be used to evaluate the potential benefits of rotating heat exchangers in making the "next-generation" absorption chillers more compact and cost effective without any significant degradation in the performance. In addition, the feasibility of using rotating heat exchangers in other applications will be evaluated.

Zaltash, Abdolreza [ORNL; Petrov, Andrei Y [ORNL; Linkous, Randall Lee [ORNL; Vineyard, Edward Allan [ORNL

2007-01-01T23:59:59.000Z

449

How do I convert between short tons and metric tons? - FAQ - U ...  

U.S. Energy Information Administration (EIA)

Energy Conversion Calculators. Metric and Other Physical Conversion Factors. Last reviewed: September 13, 2013. Other FAQs about Coal.

450

How do I convert between short tons and metric tons? - FAQ - U ...  

U.S. Energy Information Administration (EIA)

Energy Conversion Calculators. Metric and Other Physical Conversion Factors. Last reviewed: September 13, 2013. Other FAQs about Prices.

451

Two (2) 175 Ton (350 Tons total) Chiller Geothermal Heat Pumps...  

Open Energy Info (EERE)

pump system is fully automated. The details of its optimized sequence of operation in all weather and building load conditions will be documented and shared. - Data Collection: The...

452

How do I convert between short tons and metric tons? - FAQ - U.S ...  

U.S. Energy Information Administration (EIA)

Financial market analysis and financial data for major energy companies ... What are the sources of energy-related carbon dioxide emissions by type of fuel ...

453

The National Science Bowl Students are Here! (The Streets of D.C. Just Got  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The National Science Bowl Students are Here! (The Streets of D.C. The National Science Bowl Students are Here! (The Streets of D.C. Just Got a Little Smarter.) The National Science Bowl Students are Here! (The Streets of D.C. Just Got a Little Smarter.) April 28, 2011 - 3:45pm Addthis Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs Hundreds of America's best science high school and middle school students are arriving in D.C. today to gear up for the National Science Bowl. For the last few months, more than 14,000 students from 1,800 schools competed in 110 regional matches -- all to determine the best science teams in the nation. After a series of run-off competitions this weekend, the best-of-the-best, last-standing teams will compete in the Science Bowl finals on Monday, May 2, to determine the 2011 national middle and high

454

Flashover Characteristics Along the Epoxy Resin Insulator under DC Voltage in SF6 Gas  

Science Conference Proceedings (OSTI)

In order to promote the flexibility about the selection of transmission corridor, DC gas insulated transmission line (GIL) can be utilized to substitute part of the overhead line or cable in special environment. Key factors that greatly threaten the ... Keywords: surface charge accumulation, flashover voltage, surface conductivity, time constant, electric field distribution, geometry

Zhijie Jia; Ping Liu; Jianming Li; Lin Yang

2012-03-01T23:59:59.000Z

455

Operation of the DC current transformer intensity monitors at FNAL during run II  

SciTech Connect

Circulating beam intensity measurements at FNAL are provided by five DC current transformers (DCCT), one per machine. With the exception of the DCCT in the Recycler, all DCCT systems were designed and built at FNAL. This paper presents an overview of both DCCT systems, including the sensor, the electronics, and the front-end instrumentation software, as well as their performance during Run II.

Crisp, J.; Fellenz, B.; Heikkinen, D.; Ibrahim, M.A.; Meyer, T.; Vogel, G.; /Fermilab

2012-01-01T23:59:59.000Z

456

A Comparison of the AC and DC Power Flow Models for LMP Calculations  

E-Print Network (OSTI)

shifting transformers is often dependent upon the transformer's tap value. Last, the power flow modelsA Comparison of the AC and DC Power Flow Models for LMP Calculations Thomas J. Overbye, Xu Cheng power flow model for LMP-based market calculations. The paper first provides a general discussion

457

An Assessment of High Performance AC Motor Drives Versus DC Motor Drives  

Science Conference Proceedings (OSTI)

In today's rapidly changing market place, drive users are applying AC and DC drives in applications that require more demanding speed and torque performance. Properly matching a drive's rating and unit characteristics to an application are two very effective ways of managing unit cost and cost reduction.

1998-12-29T23:59:59.000Z

458

Stratospheric Water Vapor Variability for Washington, DC/Boulder, CO: 1964–82  

Science Conference Proceedings (OSTI)

Measurements for Washington, DC and Boulder, CO are combined to provide a time series of midlatitude stratospheric water vapor data for the period 1964–82. The mean concentration for the data period is shown to be nearly constant with altitude ...

H. J. Mastenbrook; S. J. Oltmans

1983-09-01T23:59:59.000Z

459

The National Science Bowl Students are Here! (The Streets of D.C. Just Got  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The National Science Bowl Students are Here! (The Streets of D.C. The National Science Bowl Students are Here! (The Streets of D.C. Just Got a Little Smarter.) The National Science Bowl Students are Here! (The Streets of D.C. Just Got a Little Smarter.) April 28, 2011 - 3:45pm Addthis Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs Hundreds of America's best science high school and middle school students are arriving in D.C. today to gear up for the National Science Bowl. For the last few months, more than 14,000 students from 1,800 schools competed in 110 regional matches -- all to determine the best science teams in the nation. After a series of run-off competitions this weekend, the best-of-the-best, last-standing teams will compete in the Science Bowl finals on Monday, May 2, to determine the 2011 national middle and high

460

Optical Investigations of Dust Particles Distribution in RF and DC Discharges  

Science Conference Proceedings (OSTI)

Optical emission spectroscopy is used to study dust particles movement and conditions of a formation of ordered plasma-dust structures in a capacitively coupled RF discharge. 3D binocular diagnostics of plasma-dust structures in dc discharge was made.

Ramazanov, T. S.; Dosbolayev, M. K.; Jumabekov, A. N.; Amangaliyeva, R. Zh. [Al-Farabi Kazakh National University, IETP, 96a Tole Bi St., Almaty 050012 (Kazakhstan); Filatova, I. I.; Azharonok, V. V. [B. I. Stepanov Institute of Physics NAS of Belarus, Nezavisimosti Ave., 68, 220072, Minsk (Belarus)

2008-09-07T23:59:59.000Z

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Aligned carbon nanotubes array by DC glow plasma etching for supercapacitor  

Science Conference Proceedings (OSTI)

To open the end of carbon nanotubes and make these ends connect with functional carboxyl group, aligned carbon nanotubes (CNTs) arrays was etched by DC glow oxygen-argon plasma. With these open-ended carbon nanotubes array as electrodematerials to build ...

Yongfeng Luo, Xiaojia Li, Zhiqiang Gong, Zhongzhi Sheng, Xiaofang Peng, Qunying Mou, Mengdong He, Xianjun Li, Hong Chen

2013-01-01T23:59:59.000Z

462

Surface Sampling of a Snowstorm by a 2D-C Probe with and without Aspiration  

Science Conference Proceedings (OSTI)

A 2D-C probe was mounted on the front of a truck for operation in a horizontal orientation, as on an aircraft, and also in a vertical orientation using an aspirator. A snowstorm with calm conditions was sampled by alternatively driving the truck ...

Edmond W. Holroyd III

1986-12-01T23:59:59.000Z

463

A Simple and Unified Method to Model HVDC Links and FACTS Devices in DC Load Flow  

Science Conference Proceedings (OSTI)

The DC load flow is a rapid and approximate solution method for the determination of lines active power flows in power systems. In this paper, the HVDC (High Voltage Direct Current) links and FACTS (Flexible AC Transmission Systems) devices have been ... Keywords: Flexible AC Transmission Systems, High Voltage Direct Current, linearized load flow

Omid Alizadeh Mousavi; Mohammad Javad Sanjari; G.B. Gharehpetian; R.A. Naghizadeh

2009-02-01T23:59:59.000Z

464

Grounding studies in a medium voltage DC shipboard power system with uncertain parameters  

Science Conference Proceedings (OSTI)

In this paper, the response surface modeling approach is applied to study the effectiveness of different grounding schemes implemented for the mitigation of single-line-to-ground faults in a simulation of a notional Medium Voltage DC shipboard power ... Keywords: Gaussian process model, Sobol indices, multivariate adaptive regression splines (MARS)

Dorca Lee; Diomar Infante; James Langston; Svetlana V. Poroseva; Michael Steurer; Thomas Baldwin

2010-07-01T23:59:59.000Z

465

Available Transfer Capability Calculation for AC/DC Systems with VSC-HVDC  

Science Conference Proceedings (OSTI)

In this paper, the voltage source converter is equivalently represented by voltage source model, thus the model of voltage source converter--high voltage direct current (VSC-HVDC) system suitable for optimal power flow is established. Each control mode ... Keywords: available transfer capability, voltage source converter, AC/DC systems, sequential quadratic programming method

Guoqing Li; Jian Zhang

2010-06-01T23:59:59.000Z

466

Residual?Gas Analysis of a DC-705 Oil?Diffusion?Pumped uhv System  

Science Conference Proceedings (OSTI)

The residual gases present in a DC-705 oil?diffusion?pump uhv system have been determined as a function of various trapping conditions. The system was equipped with a metal 2-in. oil?diffusion pump in series with a specially designed trap in which zeolite was used. The configuration of the trap permitted the trapping zone to be immersed in cryogenic liquids

Charles M. Gosselin; Paul J. Bryant

1965-01-01T23:59:59.000Z

467

Coastal Circulations and Their Influence on Deposition Patterns in the Washington, D.C. Area  

Science Conference Proceedings (OSTI)

The existence of coastal fronts and their effects on deposition patterns in the Washington, D.C. area are presented in this paper. The data are from an experiment conducted from October 1986 to March 1987. An earlier paper by Patrinos et al. ...

Martin J. Leach; A. A. N. Patrinos

1992-12-01T23:59:59.000Z

468

DATA 02 DataNet: Data Conservancy (UCLA-DC). Team Members  

E-Print Network (OSTI)

DATA 02 DataNet: Data Conservancy (UCLA-DC). Team Members · Christine Borgman, Faculty, PI* · David Overview The Data Conservancy is a five-year project lead by Johns Hopkins University, funded by NSFs Data that will archive data and facilitate collaborative access for a range of sciences. Its design will be based upon

Grether, Gregory

469

DC-OPF Formulation with Price-Sensitive Demand Bids Junjie Sun and Leigh Tesfatsion  

E-Print Network (OSTI)

maximum willingness to pay as a function of the demanded quantity pS Lj: Dj (pS Lj) = cj - 2 · dj · pS LjDC-OPF Formulation with Price-Sensitive Demand Bids Junjie Sun and Leigh Tesfatsion Last Revised: 19 March 2008 1 Cost and Demand Function Representations Generator i's total cost function: TCi

Tesfatsion, Leigh

470

Market power and welfare effects in DC power flow electricity models with thermal line losses  

Science Conference Proceedings (OSTI)

A nodal electric power network with Cournot-Nash interaction among power generators is formulated as a mixed complementarity problem. The model incorporates a direct current (DC) power flow approximation with thermal line losses to model real-time flows. ... Keywords: Electricity markets, Imperfect competition, Thermal line losses, Welfare measurement

Rastislav Ivanic; Paul V. Preckel; Zuwei Yu

2005-10-01T23:59:59.000Z

471

Mathematical programming applied in the optimal power flow problem DC: case studies of market needs  

Science Conference Proceedings (OSTI)

This paper seeks to investigate the application of mathematical programming, considering it as a tool for optimal electrical power generation and management. Nowadays, observing signals of crisis in various countries, electrical power emerges not only ... Keywords: energy flow in electrical energy networks and markets, linear Programming, marketing theory, mathematical programming, optimum power flow DC

Emerson Eustáquio Costa; Luiz Danilo Barbosa Terra; George Leal Jamil

2008-04-01T23:59:59.000Z

472

Hydrogen Storage Systems Analysis Working Group Meeting Argonne National Laboratory DC Offices  

E-Print Network (OSTI)

Hydrogen Storage Systems Analysis Working Group Meeting Argonne National Laboratory DC Offices 955 REPORT Hydrogen Storage Systems Analysis Working Group Meeting December 12, 2006 955 L'Enfant Plaza research community involved in systems analysis of hydrogen storage materials and processes for information

473

D.C. WRRC No. 56 DESIGN OF A WATER RESOURCES  

E-Print Network (OSTI)

#12;D.C. WRRC No. 56 DESIGN OF A WATER RESOURCES TRAINING PROGRAM FOR OPERATION, MAINTENANCE, the analysis of job and performance functions, the development and design of the curriculum, and finally...............................................................................................1 BACKGROUND RESEARCH 1. HISTORY OF TRAINING PROGRAMS CONDUCTED FOR THE WATER RESOURCES MANAGEMENT

District of Columbia, University of the

474

Modeling and Simulation for Grid Fault Impacts on a DC Microgrid  

Science Conference Proceedings (OSTI)

A micro grid consists of several distributed generation resources and local loads, which provide the solution to supply premium power to remote or specific areas. To the design of a micro grid, it is necessary to perform computer simulation for the planning ... Keywords: DC microgrid, bi-directional inverter, wind turbine, fuel cell, battery

H. C. Su; G. W. Chang; B. W. Liu; J. H. Chen; K. K. Jen; C. H. Chung; J. Z. Wu

2012-06-01T23:59:59.000Z

475

Manual gas tungsten arc (dc) and semiautomatic gas metal arc welding of 6XXX aluminum. Welding procedure specification  

SciTech Connect

Procedure WPS-1009 is qualified under Section IX of the ASME Boiler and Pressure Vessel Code for manual gas tungsten arc (DC) and semiautomatic gas metal arc (DC) welding of aluminum alloys 6061 and 6063 (P-23), in thickness range 0.187 to 2 in.; filler metal is ER4043 (F-23); shielding gases are helium (GTAW) and argon (GMAW).

Wodtke, C.H.; Frizzell, D.R.; Plunkett, W.A.

1985-08-01T23:59:59.000Z

476

Operating space of a bidirectional PWM ac-to-dc converter applied in active line-conditioning  

Science Conference Proceedings (OSTI)

The paper presents the operating space of a bidirectional PWM ac-to-dc converter which can act also as a line conditioner. This analysis of the operating space will prove the secondary line conditioning functionality of the PWM dc converters. Starting ...

R. Paku; R. Marschalko

2008-05-01T23:59:59.000Z

477

New Power Electronics Converter Interfacing a Hybrid Dc/Ac Microgrid M. Alibeik, E. C. dos Santos Jr.  

E-Print Network (OSTI)

New Power Electronics Converter Interfacing a Hybrid Dc/Ac Microgrid M. Alibeik, E. C. dos Santos possible to combine ac and dc subgrids to form the hybrid microgrid. The main advantage of the hybrid microgrid is that it has higher efficiency and lesser power conversion. In this work is proposed a new

Zhou, Yaoqi

478

BiofuelsMarketAlert Copyright 2010 The Kiplinger Washington Editors, Inc. 1729 H Street NW Washington, DC 20006-3938 202-887-6426  

E-Print Network (OSTI)

(EPA) over the proposed Renewable Fuel Standard (RFS2). One lawsuit--filed by two lead- ing trade groups, the Renewable Fuels Association (RFA) and Growth Energy--attacks the LCFS on constitutional Holmberg . . 4 China Cuts Ethanol Tariffs . 6 Legal Action 0 10 20 30 40 50 `35 `22 `08 Corn

479

Data:4dc265dc-d22a-485e-bdd3-1558787b6d4a | Open Energy Information  

Open Energy Info (EERE)

dc-d22a-485e-bdd3-1558787b6d4a dc-d22a-485e-bdd3-1558787b6d4a No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: City of Burlington-Electric, Vermont (Utility Company) Effective date: 2013/01/01 End date if known: Rate name: Large General (LG) Rate Demand is less than 25KW Sector: Industrial Description: Service under this rate is supplied for all purposes where energy consumption is 3,000 kWh per month or above (or greater than or equal to 100 kWh per day) for 3 consecutive months out of the last 12 months, or at the request of the customer. Source or reference: https://www.burlingtonelectric.com/ELBO/assets/Tariff%20Sheets%20June%20262009%20revised-1.pdf

480

San Francisco Bay Area’s Spare the Air/Free Morning Commute Program: Program Effectiveness in Comparison to the Washington, D.C. and Los Angeles Area Strategy and Suggestions for Enhancing Ridership D.  

E-Print Network (OSTI)

the National Capital Region. Washington, DC: MWCOG. pg “3-2”and Monitoring Appendix D: Washington, D.C. Air QualityImplementation Plan. ” Washington, D.C. : MWAQC. Pg. 7-66.

Joshua Widmann

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ing ton dc" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Go-ing for the prediction of protein folding mechanisms  

E-Print Network (OSTI)

of Chemistry, Faculty of Science, Kobe University, Kobe, 657-8501, Japan Protein folding has been a long-lived could be relatively simple. These three ingredients are linked together with an almost one-line free work (8, 9). The surprise of the three papers is that apparently one can have both simplicity and fair

Takada, Shoji

482

The physical function-ing of a city sometimes  

E-Print Network (OSTI)

insurance. It is recommended that parents carefully review their homeowners, auto and health insurance. Parents should check their homeowners policy to see whether it will cover a student's possessions while

483

Workshop on Satellites for Solar Energy Resource Information -Washington, DC, April 10-11, 1996 POTENTIALS OF IMAGES FROM GEOSTATIONARY SATELLITE DATA FOR THE  

E-Print Network (OSTI)

Workshop on Satellites for Solar Energy Resource Information - Washington, DC, April 10-11, 1996, DC : United States (1996)" #12;Potentials of images for the assessment of advanced of solar energy parameters - L. Wald 2 Workshop on Satellites for Solar Energy Resource Information - Washington, DC, April

Paris-Sud XI, Université de

484

Linked Open Data Workshop in Washington, D.C. | OpenEI Community  

Open Energy Info (EERE)

Linked Open Data Workshop in Washington, D.C. Linked Open Data Workshop in Washington, D.C. Home > Features > Groups Content Group Activity By term Q & A Feeds Content type Blog entry Discussion Document Event Poll Keywords Author Apply Jweers LOD Workshop Invitation Posted by: Jweers 10 Oct 2012 - 08:20 Update the invitation (attached). It now features a link to the public facing wiki page. Tags: Event, linked open data, LOD, Open Data, workshop Jweers LOD Workshop Invitation Posted by: Jweers 8 Oct 2012 - 15:42 The latest invitation. Tags: Event, linked open data, LOD, Open Data, workshop Jweers Event Planning Page Updated! Posted by: Jweers 27 Sep 2012 - 18:38 I updated the Event Planning Page; started a list of potential speakers and added a table of invitees... Jweers Added Public Promotional Page!

485

DC Resistivity Survey (Dipole-Dipole Array) At Coso Geothermal Area (1977)  

Open Energy Info (EERE)

Dipole Array) At Coso Geothermal Area (1977) Dipole Array) At Coso Geothermal Area (1977) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: DC Resistivity Survey (Dipole-Dipole Array) At Coso Geothermal Area (1977) Exploration Activity Details Location Coso Geothermal Area Exploration Technique DC Resistivity Survey (Dipole-Dipole Array) Activity Date 1977 Usefulness useful regional reconnaissance DOE-funding Unknown Notes Detailed electrical resistivity survey for a 54 line-km. This survey has defined a bedrock resistivity low at least 4 sq mi (10 sq km) in extent; survey data indicate that a 10 to 20 ohm-meter zone extends from near surface to a depth greater than 750 meters. References Fox, R. C. (1 May 1978) Dipole-dipole resistivity survey of a portion of the Coso Hot Springs KGRA, Inyo County, California

486

Suirr 300, 955 L*Enfwu Plaza. S. Iv.. Washingron. D.C. 200242174.  

Office of Legacy Management (LM)

Suirr 300, 955 L*Enfwu Plaza. S. Iv.. Washingron. D.C. 200242174. Suirr 300, 955 L*Enfwu Plaza. S. Iv.. Washingron. D.C. 200242174. 7117-03.87.cdy.43 23 September 1987 M r. Andrew Wallo, III, NE-23 Division of Facility & Site Decommissioning Projects U.S. Department of Energy Germantown, Maryland 20545 Dear M r. Wallo: I ELIMINATION~RECOMMENDATION -- COLLEGES AND "NIY$RfITIES / t kphonc (202) d.t%xO The attached elimination recommendation was prepared lin accordance with your suggestion during our meeting on 22 September! The recommenda includes 26 colleges and universities identified.in Enclosure 4 to Aerospace letter subject: Status of Actions - FUSRAP Site' List, dated 27 May 1987; three institutions (Tufts College. University of Virginia, and the University of Washington) currently identified on phe FUSRAP

487

Energy Department to Host Biomass 2012 Conference in Washington, D.C |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Biomass 2012 Conference in Washington, Biomass 2012 Conference in Washington, D.C Energy Department to Host Biomass 2012 Conference in Washington, D.C July 9, 2012 - 4:52pm Addthis NEWS MEDIA CONTACT (202) 586-4940 WASHINGTON - On July 10-11, the U.S. Department of Energy will host its fifth annual conference, Biomass 2012: Confronting Challenges, Creating Opportunities - Sustaining a Commitment to Bioenergy. Biomass 2012 will bring together hundreds of diverse stakeholders in the public and private sectors to discuss the latest advances in bioenergy technology, policy news and financing strategies. As part of President Obama's all-of-the-above energy strategy, the Energy Department is working in partnership with industry and other federal agencies to catalyze breakthroughs in innovative biofuel technologies and

488

DC sputtered indium-tin oxide transparent cathode for organic light-emitting diodes  

E-Print Network (OSTI)

Abstract—The performance of top-emitting organic light-emitting diodes depends not just on the choice of the transparent cathodes but also on their techniques of formation. Compared to the damage induced by radio frequency sputtering of indium-tin oxide cathode, that induced by dc sputtering was verified to be less severe and relatively independent of the sputtering power. Consequently, a high dc sputtering power of 120 W could be employed to achieve a high deposition rate of 0.1 nm/s. Adequate emission efficiency was maintained, even with a relatively thin 7-nm copper (II) phthalocyanine buffer layer. Index Terms—Indium-tin oxide, organic light-emitting diodes, sputtering, top-emission, transparent cathode. I.

Haiying Chen; Chengfeng Qiu; Man Wong; Hoi Sing Kwok

2003-01-01T23:59:59.000Z

489

Resonant surface enhancement of Raman scattering of Ag nanoparticles on silicon substrates fabricated by dc sputtering  

SciTech Connect

Ag nanoparticles (AgNPs) were deposited onto silicon substrates by direct current (dc) magnetron sputtering. The influences of sputtering power and sputtering time on the AgNP film morphology were studied using atomic force microscopy. The particle size was successfully tuned from 19 nm to 53 nm by varying the sputtering time at a dc power of 10 W. When Rhodamine 6 G (R6G) was used as the probe molecule, the AgNP films showed significant surface enhanced Raman scattering effect. In particular, it is found that larger particles show stronger enhancement for lower concentrations of R6G while smaller particles display stronger enhancement for higher concentrations of R6G.

Fang Yingcui; Li Xiaxi; Blinn, Kevin; Mahmoud, Mahmoud A.; Liu Meilin [Vacuum Section of Hefei University of Technology, Hefei, Anhui, 230009 (China) and School of Materials Science and Engineering, Center for Innovative Fuel Cell and Battery Technologies, Georgia Institute of Technology, Atlanta, Georgia 30332-0245 (United States); School of Materials Science and Engineering, Center for Innovative Fuel Cell and Battery Technologies, Georgia Institute of Technology, Atlanta, Georgia 30332-0245 (United States); School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400 (United States); School of Materials Science and Engineering, Center for Innovative Fuel Cell and Battery Technologies, Georgia Institute of Technology, Atlanta, Georgia 30332-0245 (United States)

2012-09-15T23:59:59.000Z

490

120 kA pulsed dc power system with computerized thyristor triggering  

SciTech Connect

A pulsed dc power system provides 120 kA excitation current for the ORMAK toroidal field coils. A drive potential of 1000 volts brings the coils up to full current in about 0.5 seconds. Constant current is maintained for 0.25 seconds, then approximately 20 x 10$sup 6$ joules of stored energy is dumped in a free-wheeling diode and resistance network. The power system contains 8 each, 30 kA, 500 V thyristor controlled dc power modules in a series/parallel combination. A control computer generates thyristor trigger pulses in a programmed sequence as required for the desired duty cycle. A feedback network including current sensing and computer software permits trigger timing adjustments as necessary for constant current operation. (auth)

Mosko, S.W.; Bates, D.D.; Bigelow, R.R.; Cottongim, E.K.; Pipes, E.W.; Sueker, K.

1975-01-01T23:59:59.000Z

491

A multilevel voltage-source inverter with separate dc sources for static var generation  

SciTech Connect

A new multilevel voltage-source inverter with a separate dc sources is proposed for high-voltage, high-power applications, such as flexible ac transmission systems (FACTS) including static var generation (SVG), power line conditioning, series compensation, phase shifting, voltage balancing, fuel cell and photovoltaic utility systems interfacing, etc. The new M-level inverter consists of (M-1)/2 single phase full bridges in which each bridge has its own separate dc source. This inverter can generate almost sinusoidal waveform voltage with only one time switching per cycle as the number of levels increases. It can solve the problems of conventional transformer-based multipulse inverters and the problems of the multilevel diode-clamped inverter and the multilevel flying capacitor inverter. To demonstrate the superiority of the new inverter, a SVG system using the new inverter topology is discussed through analysis, simulation and experiment.

Peng, Fang Zheng [Tennessee Univ., Knoxville, TN (United States)]|[Oak Ridge National Lab., TN (United States); Lai, Jih-Sheng; McKeever, J.; VanCoevering, J. [Oak Ridge National Lab., TN (United States)

1995-09-01T23:59:59.000Z

492

Efficiency consideration of DC link soft-switching inverters for motor drive applications  

SciTech Connect

This paper critically evaluates efficiency of soft switching inverters including an actively clamped resonant dc link inverter and a clamped-mode resonant pole inverter. An analytical approach to evaluating efficiency of the clamped-mode soft switching inverter has been developed. The evaluation results are compared with that of the standard pulse-width-modulation (PWM) inverter. A 50-kW induction motor is used as the variable load, and the inverter efficiency is evaluated under different speed and torque conditions. The clamped-mode soft-switching inverter, although eliminating the switching loss, shows poor efficiency over the entire load range. Under low load conditions, the efficiency profile is even worse. The actively clamped resonant dc link inverter shows highest efficiency over the entire speed and torque range. However, its energy saving over the standard PWM inverter is marginal under full load or high speed conditions.

Lai, J.S.; Young, R.W.; McKeever, J.W.

1994-12-31T23:59:59.000Z

493

Recent content in Linked Open Data Workshop in Washington, D.C. | OpenEI  

Open Energy Info (EERE)

Recent content in Linked Open Data Workshop in Washington, D.C. Recent content in Linked Open Data Workshop in Washington, D.C. Home Name Post date sort icon Type Detailed Planning Kicks Off Jweers 27 Sep 2012 - 06:53 Blog entry Notes from the Call Jweers 27 Sep 2012 - 17:57 Blog entry Added Public Promotional Page! Jweers 27 Sep 2012 - 18:10 Blog entry Event Planning Page Updated! Jweers 27 Sep 2012 - 18:38 Blog entry LOD Workshop Invitation Jweers 8 Oct 2012 - 15:42 Document LOD Workshop Invitation Jweers 10 Oct 2012 - 08:20 Document Groups Menu You must login in order to post into this group. Recent content LOD Workshop Invitation LOD Workshop Invitation Event Planning Page Updated! Added Public Promotional Page! Notes from the Call more Group members (6) Managers: Jweers MHudman Rmckeel Recent members: Rmbot

494

Data:3f661084-6107-4522-9923-7dd335dc7787 | Open Energy Information  

Open Energy Info (EERE)

1084-6107-4522-9923-7dd335dc7787 1084-6107-4522-9923-7dd335dc7787 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Rice Lake Utilities Effective date: 2011/04/01 End date if known: Rate name: Rg-2 Residential Service Optional Time-of-Day Single Phase 7am-7pm Sector: Residential Description: Power Cost Adjustment Clause - All metered rates shall be subject to a positiv¬e or negative power cost adjustment charge equivalent to the amount by which the current cost of power (per kilowatt-hour of sales) is greater or lesser than the base cost of power purchased (per kilowatt-hour of sales). The base cost of power (U) is $0.0773 per kilowatt-hour.

495

DC-like Phase Space Manipulation and Particle Acceleration Using Chirped AC Fields  

SciTech Connect

Waves in plasmas can accelerate particles that are resonant with the wave. A DC electric field also accelerates particles, but without a resonance discrimination, which makes the acceleration mechanism profoundly different. We investigate the effect on a Hamiltonian distribution of an accelerating potential waveform, which could, for example, represent the average ponderomotive effect of two counterpropagating electromagnetic waves. In particular, we examine the apparent DC-like time-asymptotic response of the distribution in regimes where the potential structure is accelerated adiabatically. A highly resonant population within the distribution is always present, and we characterize its nonadiabatic response during wave-particle resonance using an integral method in the noninertial reference frame moving with the wave. Finally, we show that in the limit of infinitely slow acceleration of the wave, these highly resonant particles disappear and the response

P.F. Schmit and N.J. Fisch

2009-06-17T23:59:59.000Z

496

Round-robin artificial contamination test on high voltage dc insulators  

Science Conference Proceedings (OSTI)

This paper summarizes the results of a worldwide round-robin test of high voltage dc (HVDC) insulators, which was carried out in six laboratories aiming at standardization of the method for artificial contamination tests on HVDC insulators. Flashover characteristics of three kinds of specimens were evaluated by the clean fog and the salt fog procedures. Sufficient information is now available to allow the preparation of provisional international specifications for artificial contamination testing of HVDC insulators.

Naito, K.; Schneider, H.M.

1995-07-01T23:59:59.000Z

497

Power upgrading of transmission line by combining AC-DC transmission  

Science Conference Proceedings (OSTI)

Long extra high voltage (EHV) ac lines cannot be loaded to their thermal limits in order to keep sufficient margin against transient instability. With the scheme proposed in this project, it is possible to load these lines very close to their thermal ... Keywords: extra high voltage (EHV)transmission, flexible ac transmission system (FACTS), power system computer-aided design(PSCAD), simultaneous ac-dc power transmission

Jarupula Somlal

2010-07-01T23:59:59.000Z

498

Analogue Hawking Radiation in a dc-SQUID Array Transmission Line  

E-Print Network (OSTI)

We propose the use of a superconducting waveguide formed from an array of dc-SQUID's for investigating analogue Hawking radiation. Biasing the array with a space-time varying flux modifies the propagation velocity of the waveguide, leading to an effective metric with an horizon. Being a fundamentally quantum mechanical device, this setup allows for investigations of quantum effects such as back-reaction and analogue space-time fluctuations on the Hawking process.

P. D. Nation; M. P. Blencowe; A. J. Rimberg; E. Buks

2009-04-16T23:59:59.000Z

499

Method of measuring the dc electric field and other tokamak parameters  

DOE Patents (OSTI)

A method including a brief, deliberate perturbation of hot tokamak electrons which produces a transient synchrotron radiation signal, in frequency-time space, and the inference, using very fast algorithms, of plasma parameters including the effective ion charge state Z{sub eff}, the direction of the magnetic field, and the position and width in velocity space of the brief heating, and, in particular, the dc toroidal electric field.

Fisch, N.J.; Kritz, A.H.

1990-03-01T23:59:59.000Z

500

Assessment of DC Backup Power Technology Options for Nuclear Power Generation Stations  

Science Conference Proceedings (OSTI)

The March 2011 Fukushima nuclear power plant accident in Japan created a renewed industry interest in examining potential improvements for backup power options to support plant accident scenarios in both near-term and long-term implementation time periods. This report assesses technology options that can be considered in improving DC backup power. Options with near-term applicability were considered and reviewed. Certain energy storage systems and hydrogen power fuel cells were identified that could ...