Sample records for local electric current

  1. Electric Currents Electric Current

    E-Print Network [OSTI]

    Yu, Jaehoon

    ;Problem 3: At $0.095/kWh, what does it cost to leave a 25W porch light on day and night for a year = 219000 Watt- hour = 219kWh. So, total cost = 219 x$0.095 = $20.8 #12;Problem 4: A 100 W light bulb has of charge per unit time: = . Unit of current: Ampere (A). The purpose of a battery is to produce

  2. AN EDDY CURRENT PROBLEM IN TERMS OF A TIME-PRIMITIVE OF THE ELECTRIC FIELD WITH NON-LOCAL SOURCE CONDITIONS

    E-Print Network [OSTI]

    RodrĂ­guez, Rodolfo

    AN EDDY CURRENT PROBLEM IN TERMS OF A TIME-PRIMITIVE OF THE ELECTRIC FIELD WITH NON-LOCAL SOURCE Abstract. The aim of this paper is to analyze a formulation of the eddy current problem in terms of a time and phrases: Eddy current problems, time-dependent electromagnetic problems, input current intensities

  3. Electric current locator

    DOE Patents [OSTI]

    King, Paul E. (Corvallis, OR); Woodside, Charles Rigel (Corvallis, OR)

    2012-02-07T23:59:59.000Z

    The disclosure herein provides an apparatus for location of a quantity of current vectors in an electrical device, where the current vector has a known direction and a known relative magnitude to an input current supplied to the electrical device. Mathematical constants used in Biot-Savart superposition equations are determined for the electrical device, the orientation of the apparatus, and relative magnitude of the current vector and the input current, and the apparatus utilizes magnetic field sensors oriented to a sensing plane to provide current vector location based on the solution of the Biot-Savart superposition equations. Description of required orientations between the apparatus and the electrical device are disclosed and various methods of determining the mathematical constants are presented.

  4. Electric field induced spin-polarized current

    DOE Patents [OSTI]

    Murakami, Shuichi; Nagaosa, Naoto; Zhang, Shoucheng

    2006-05-02T23:59:59.000Z

    A device and a method for generating an electric-field-induced spin current are disclosed. A highly spin-polarized electric current is generated using a semiconductor structure and an applied electric field across the semiconductor structure. The semiconductor structure can be a hole-doped semiconductor having finite or zero bandgap or an undoped semiconductor of zero bandgap. In one embodiment, a device for injecting spin-polarized current into a current output terminal includes a semiconductor structure including first and second electrodes, along a first axis, receiving an applied electric field and a third electrode, along a direction perpendicular to the first axis, providing the spin-polarized current. The semiconductor structure includes a semiconductor material whose spin orbit coupling energy is greater than room temperature (300 Kelvin) times the Boltzmann constant. In one embodiment, the semiconductor structure is a hole-doped semiconductor structure, such as a p-type GaAs semiconductor layer.

  5. Current Electric | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, clickInformationNew|CoreCpWing County,ElectricCuming CountyCupertinoCurran,

  6. Electric Current Wound Healing David Cukjati

    E-Print Network [OSTI]

    Ljubljana, University of

    , Slovenia The authors review the existing physical modalities for treatment of chronic wounds and show the advantages of electric current and electromagnetic field stimulation. Direct currents, low frequency pulsed disruption is activation of the coagulation cascade and the production of blood clot. After several minutes

  7. Hydrogen Fueling for Current and Anticipated Fuel Cell Electric...

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

    for Current and Anticipated Fuel Cell Electric Vehicles (FCEVs) Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles (FCEVs) Download presentation slides from...

  8. Axial Current Generation from Electric Field: Chiral Electric Separation Effect

    E-Print Network [OSTI]

    Xu-Guang Huang; Jinfeng Liao

    2013-06-07T23:59:59.000Z

    We study a relativistic plasma containing charged chiral fermions in an external electric field. We show that with the presence of both vector and axial charge densities, the electric field can induce an axial current along its direction and thus cause chirality separation. We call it the Chiral Electric Separation Effect (CESE). On very general basis, we argue that the strength of CESE is proportional to $\\mu_V\\mu_A$ with $\\mu_V$ and $\\mu_A$ the chemical potentials for vector charge and axial charge. We then explicitly calculate this CESE conductivity coefficient in thermal QED at leading-log order. The CESE can manifest a new gapless wave mode propagating along the electric field. Potential observable of CESE in heavy-ion collisions is also discussed.

  9. Axial Current Generation from Electric Field: Chiral Electric Separation Effect

    E-Print Network [OSTI]

    Huang, Xu-Guang

    2013-01-01T23:59:59.000Z

    We study a relativistic plasma containing charged chiral fermions in an external electric field. We show that with the presence of both vector and axial charge densities, the electric field can induce an axial current along its direction and thus cause chirality separation. We call it the Chiral Electric Separation Effect (CESE). On very general basis, we argue that the strength of CESE is proportional to $\\mu_V\\mu_A$ with $\\mu_V$ and $\\mu_A$ the chemical potentials for vector charge and axial charge. We then explicitly calculate this CESE conductivity coefficient in thermal QED at leading-log order. The CESE can manifest a new gapless wave mode propagating along the electric field. Potential observable of CESE in heavy-ion collisions is also discussed.

  10. Master Thesis Proposal Eddy Current Imaging of Electrically Conducting Media

    E-Print Network [OSTI]

    Vuik, Kees

    Master Thesis Proposal Eddy Current Imaging of Electrically Conducting Media Domenico Lahaye and optimization techniques en- abling the eddy current imaging of electrically conducting media. Examples: · perform a literature study into topics such as eddy current imaging, inverse problems including

  11. Electric current generation in distorted graphene

    E-Print Network [OSTI]

    Ana Julia Mizher; Alfredo Raya; Cristian Villavicencio

    2014-09-23T23:59:59.000Z

    Graphene-like materials can be effectively described by quantum electrodynamics in 2+1 dimensions. In a pure state these systems exhibit a symmetry between the non-equivalent Dirac points in the honeycomb lattice. The effect of some types of doping or the contact with asymmetric external lattices (for instance a boron nitride layer) break this symmetry via a mechanism of effective mass generation that works differently for each Dirac point. In this work we show that the incorporation of an in-plane external magnetic field on this pseudochiral asymmetric configuration generates a non-dissipative electric current aligned with the magnetic field. This mass structure is associated to a Chern-Simons type of effective action. Together with the presence of a magnetic field generating an electric current, this scenario resembles the chiral magnetic effect in Quantum Chromodynamics.

  12. Behavior of Electric Current Subjected to ELF Electromagnetic Radiation

    E-Print Network [OSTI]

    Fran De Aquino

    2002-10-05T23:59:59.000Z

    Gravitational effects produced by ELF electromagnetic radiation upon the electric current in a conductor are studied. An apparatus has been constructed to test the behavior of current subjected to ELF radiation. The experimental results are in agreement with theoretical predictions and show that ELF radiation can cause transitory interruptions in electric current conduction.

  13. Electric Field Control of Local Ferromagnetism with a Magnetoelectric...

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

    Electric Field Control of Local Ferromagnetism with a Magnetoelectric Multiferroic Print Magnetoelectric multiferroics-materials that simultaneously show some form of magnetic and...

  14. Laser and Electrical Current Induced Phase Transformation of...

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

    Current Induced Phase Transformation of In2Se3 Semiconductor thin film on Si(111) . Laser and Electrical Current Induced Phase Transformation of In2Se3 Semiconductor thin film...

  15. Reducing current reversal time in electric motor control

    DOE Patents [OSTI]

    Bredemann, Michael V

    2014-11-04T23:59:59.000Z

    The time required to reverse current flow in an electric motor is reduced by exploiting inductive current that persists in the motor when power is temporarily removed. Energy associated with this inductive current is used to initiate reverse current flow in the motor.

  16. Scanning Tunneling Microscopy currents on locally disordered graphene

    E-Print Network [OSTI]

    Tsai, Shan-Wen; Peres, Nuno M. R.; Santos, J. E.; Ribeiro, R. M.

    2009-01-01T23:59:59.000Z

    Scanning Tunneling Microscopy currents on locally disorderedcharacteristic curves of Scanning Tunneling Microscopy (STM)for the calculation of Scanning Tunneling Microscopy (STM)

  17. Vapor cooled current lead for cryogenic electrical equipment

    DOE Patents [OSTI]

    Vansant, James H. (Tracy, CA)

    1983-01-01T23:59:59.000Z

    Apparatus and method are provided for conducting electric current to cryogenic electrical equipment devices. A combination of inner and outer tubes together form a plurality of hollow composite tubes housed in a sheath. Top and bottom block mounting means are fitted to hold the composite tubes and are affixed to the ends of the sheath. This combination forms a current lead. The current lead is attached to a cryogenic device housing a fluid coolant which moves through the current lead, cooling the current lead as the fluid travels.

  18. Vacuum gaps with small tunnel currents at large electric field...

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

    Vacuum gaps with small tunnel currents at large electric field and its potential applications for energy storage, charge storage and power supplies. Friday, May 27, 2011 - 4:00pm...

  19. On the electrical current distributions for the generalized Ohm's Law

    E-Print Network [OSTI]

    Marco Pedro Ramirez Tachiquin

    2011-01-09T23:59:59.000Z

    The paper studies a particular class of analytic solutions for the Generalized Ohm's Law, approached by means of the so called formal powers of the Pseudoanalytic Function Theory. The reader will find a description of the electrical current distributions inside bounded domains, within inhomogeneous media, and their corresponding electric potentials near the boundary. Finally, it is described a technique for approaching separable-variables conductivity functions, a requisite when applying the constructive methods posed in this work.

  20. Estimating electric current densities in solar active regions

    E-Print Network [OSTI]

    Wheatland, M S

    2015-01-01T23:59:59.000Z

    Electric currents in solar active regions are thought to provide the energy released via magnetic reconnection in solar flares. Vertical electric current densities $J_z$ at the photosphere may be estimated from vector magnetogram data, subject to substantial uncertainties. The values provide boundary conditions for nonlinear force- free modelling of active region magnetic fields. A method is presented for estimating values of $J_z$ taking into account uncertainties in vector magnetogram field values, and minimizing $J_z^2$ across the active region. The method is demonstrated using the boundary values of the field for a force-free twisted bipole, with the addition of noise at randomly chosen locations.

  1. Hardware model of a shipboard zonal electrical distribution system (ZEDS) : alternating current/direct current (AC/DC)

    E-Print Network [OSTI]

    Tidd, Chad N. (Chad Norman)

    2010-01-01T23:59:59.000Z

    A hardware model of a shipboard electrical distribution system based on aspects of the DDG 51 Flight IIA, Arleigh Burke class, 60Hz Alternating Current (AC) and the future direct current (DC), zonal electrical distribution ...

  2. Electric machine and current source inverter drive system

    DOE Patents [OSTI]

    Hsu, John S

    2014-06-24T23:59:59.000Z

    A drive system includes an electric machine and a current source inverter (CSI). This integration of an electric machine and an inverter uses the machine's field excitation coil for not only flux generation in the machine but also for the CSI inductor. This integration of the two technologies, namely the U machine motor and the CSI, opens a new chapter for the component function integration instead of the traditional integration by simply placing separate machine and inverter components in the same housing. Elimination of the CSI inductor adds to the CSI volumetric reduction of the capacitors and the elimination of PMs for the motor further improve the drive system cost, weight, and volume.

  3. Electrical Current from Quantum Vacuum Fluctuations in Nano-Engines

    E-Print Network [OSTI]

    Loďc Henriet; Andrew N. Jordan; Karyn Le Hur

    2015-05-01T23:59:59.000Z

    We theoretically investigate a quantum dot coupled to fermionic and bosonic environments, naturally occurring in electrical circuits. The fermionic environments consist of two electronic reservoir leads and the bosonic baths are either external impedances modeled as tunable transmission lines or LC resonators (single-mode cavities). The differing sizes of the zero-point fluctuations of the quantum vacuum break the spatial symmetry of the system if the quantum dot is coupled to two reservoirs or two junctions with different bosonic environments. We show how this permits the rectification of the electrical current in both non-resonant and resonant tunneling cases.

  4. The origin of net electric currents in solar active regions

    E-Print Network [OSTI]

    Dalmasse, K; Démoulin, P; Kliem, B; Török, T; Pariat, E

    2015-01-01T23:59:59.000Z

    There is a recurring question in solar physics about whether or not electric currents are neutralized in active regions (ARs). This question was recently revisited using three-dimensional (3D) magnetohydrodynamic (MHD) numerical simulations of magnetic flux emergence into the solar atmosphere. Such simulations showed that flux emergence can generate a substantial net current in ARs. Another source of AR currents are photospheric horizontal flows. Our aim is to determine the conditions for the occurrence of net vs. neutralized currents with this second mechanism. Using 3D MHD simulations, we systematically impose line-tied, quasi-static, photospheric twisting and shearing motions to a bipolar potential magnetic field. We find that such flows: (1) produce both {\\it direct} and {\\it return} currents, (2) induce very weak compression currents - not observed in 2.5D - in the ambient field present in the close vicinity of the current-carrying field, and (3) can generate force-free magnetic fields with a net current...

  5. Submerged electricity generation plane with marine current-driven motors

    DOE Patents [OSTI]

    Dehlsen, James G.P.; Dehlsen, James B.; Fleming, Alexander

    2014-07-01T23:59:59.000Z

    An underwater apparatus for generating electric power from ocean currents and deep water tides. A submersible platform including two or more power pods, each having a rotor with fixed-pitch blades, with drivetrains housed in pressure vessels that are connected by a transverse structure providing buoyancy, which can be a wing depressor, hydrofoil, truss, or faired tube. The platform is connected to anchors on the seafloor by forward mooring lines and a vertical mooring line that restricts the depth of the device in the water column. The platform operates using passive, rather than active, depth control. The wing depressor, along with rotor drag loads, ensures the platform seeks the desired operational current velocity. The rotors are directly coupled to a hydraulic pump that drives at least one constant-speed hydraulic-motor generator set and enables hydraulic braking. A fluidic bearing decouples non-torque rotor loads to the main shaft driving the hydraulic pumps.

  6. Polymeric salt bridges for conducting electric current in microfluidic devices

    DOE Patents [OSTI]

    Shepodd, Timothy J. (Livermore, CA); Tichenor, Mark S. (San Diego, CA); Artau, Alexander (Humacao, PR)

    2009-11-17T23:59:59.000Z

    A "cast-in-place" monolithic microporous polymer salt bridge for conducting electrical current in microfluidic devices, and methods for manufacture thereof is disclosed. Polymeric salt bridges are formed in place in capillaries or microchannels. Formulations are prepared with monomer, suitable cross-linkers, solvent, and a thermal or radiation responsive initiator. The formulation is placed in a desired location and then suitable radiation such as UV light is used to polymerize the salt bridge within a desired structural location. Embodiments are provided wherein the polymeric salt bridges have sufficient porosity to allow ionic migration without bulk flow of solvents therethrough. The salt bridges form barriers that seal against fluid pressures in excess of 5000 pounds per square inch. The salt bridges can be formulated for carriage of suitable amperage at a desired voltage, and thus microfluidic devices using such salt bridges can be specifically constructed to meet selected analytical requirements.

  7. Electric Vehicle Manufacturing in Southern California: Current Developments, Future Prospects

    E-Print Network [OSTI]

    Scott, Allen J.

    1993-01-01T23:59:59.000Z

    power plants) that produce the electricity required to recharge EVs, given the fuel generat~tng mix of Southern California,

  8. Electric current-producing device having sulfone-based electrolyte

    DOE Patents [OSTI]

    Angell, Charles Austen (Mesa, AZ); Sun, Xiao-Guang (Tempe, AZ)

    2010-11-16T23:59:59.000Z

    Electrolytic solvents and applications of such solvents including electric current-producing devices. For example, a solvent can include a sulfone compound of R1--SO2--R2, with R1 being an alkyl group and R2 a partially oxygenated alkyl group, to exhibit high chemical and thermal stability and high oxidation resistance. For another example, a battery can include, between an anode and a cathode, an electrolyte which includes ionic electrolyte salts and a non-aqueous electrolyte solvent which includes a non-symmetrical, non-cyclic sulfone. The sulfone has a formula of R1--SO2--R2, wherein R1 is a linear or branched alkyl or partially or fully fluorinated linear or branched alkyl group having 1 to 7 carbon atoms, and R2 is a linear or branched or partially or fully fluorinated linear or branched oxygen containing alkyl group having 1 to 7 carbon atoms. The electrolyte can include an electrolyte co-solvent and an electrolyte additive for protective layer formation.

  9. Overview of current and future energy storage technologies for electric power applications

    E-Print Network [OSTI]

    Bahrami, Majid

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1514 3. Battery storage technologiesOverview of current and future energy storage technologies for electric power applications Ioannis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1513 2. Flywheel storage technologies

  10. Webinar: Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles (FCEVs)

    Broader source: Energy.gov [DOE]

    Recording and text version of the webinar titled "Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles (FCEVs)," originally presented on June 24, 2014.

  11. Critical issues and current views on teaching basic circuits and systems in electrical engineering education

    E-Print Network [OSTI]

    education Joos Vandewalle Department of Electrical Engineering (ESAT) Katholieke Universiteit Leuven B-3001, its impact in the electrical engineering education and in order to increase the intrinsic interestCritical issues and current views on teaching basic circuits and systems in electrical engineering

  12. Finite element analysis of a current density -electric eld formulation of Bean's model for superconductivity

    E-Print Network [OSTI]

    Styles, Vanessa

    Finite element analysis of a current density - electric #12;eld formulation of Bean's model a current density-electric #12;eld formulation of Bean's model for the experimental set-up of a in#12;nitely. As observed by Bossavit, [4], Bean's critical state model can be formulated as a degenerate Stefan problem

  13. alternating electric current: Topics by E-print Network

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

    rays is used. Photovoltaics currently relies on three technologies. Monocrystalline and polycrystalline cells are silicon-based. Thin-film cells use semi-conductor materials....

  14. alternating current electrical: Topics by E-print Network

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

    rays is used. Photovoltaics currently relies on three technologies. Monocrystalline and polycrystalline cells are silicon-based. Thin-film cells use semi-conductor materials....

  15. Development and current status of electric double-layer capacitors

    SciTech Connect (OSTI)

    Morimoto, Takeshi; Hiratsuka, Kazuya; Sanada, Yasuhiro [Asahi Glass Co. Ltd., Yokohama (Japan). Research Center; Kurihara, Kaname [ELNA Co., Ltd., Fujisawa (Japan)

    1995-12-31T23:59:59.000Z

    An electric double layer capacitor (EDLC) based on the charge storage at the interface between a high surface area carbon electrode and an electrolyte solution is widely used as maintenance-free power source for IC memories and microcomputers. New applications for electric double-layer capacitors have been proposed in recent years. The popularity of these devices is derived from their high energy density relative to conventional capacitors and their long cycle life and high power density relative to batteries. In this paper a classification and a characteristics of industrially produced Japanese small EDLCs are reviewed. Structure and performance of power capacitors under development as well as materials and performance of industrially produced small capacitors are discussed.

  16. Device for conversion of electromagnetic radiation into electrical current

    DOE Patents [OSTI]

    Blakeslee, A.E.; Mitchell, K.W.

    1980-03-25T23:59:59.000Z

    Electromagnetic energy may be converted directly into electrical energy by a device comprising a sandwich of at least two semiconductor portions, each portion having a p-n junction with a characteristic energy gap, and the portions lattice matched to one another by an intervening superlattice structure. This superlattice acts to block propagation into the next deposited portion of those dislocation defects which can form due to lattice mismatch between adjacent portions.

  17. Numerical analysis of electric field formulations of the eddy current model

    E-Print Network [OSTI]

    RodrĂ­guez, Rodolfo

    Numerical analysis of electric field formulations of the eddy current model Alfredo Berm´udez1 methods for the numeri- cal solution of the eddy current problem in a bounded conducting domain crossed): 78M10, 65N30 Key words Low-frequency harmonic Maxwell equations, eddy currents, finite elements

  18. Electric field in hard superconductors with arbitrary cross section and general critical current law

    E-Print Network [OSTI]

    Majós, Antonio Badía

    Electric field in hard superconductors with arbitrary cross section and general critical current-28871 Alcala´ de Henares, Spain Received 18 February 2004; accepted 11 March 2004 The induced electric field E x during magnetic flux entry in superconductors with arbitrary cross section and general

  19. The electromagnetic fields and the radiation of a spatio-temporally varying electric current loop

    E-Print Network [OSTI]

    Markus Lazar

    2013-04-12T23:59:59.000Z

    The electric and magnetic fields of a spatio-temporally varying electric current loop are calculated using the Jefimenko equations. The radiation and the nonradiation parts of the electromagnetic fields are derived in the framework of Maxwell's theory of electromagnetic fields. In this way, a new, exact, analytical solution of the Maxwell equation is found.

  20. Current Generated Harmonics and Their Effect Upon Electrical Industrial Systems

    E-Print Network [OSTI]

    Alexander, H. R.; Rogge, D. S.

    of the nonlinear loads with respect to that system. The distortion increases as the percentage of nonlinear loads increases. (2) PROBLEMS ENCOUNTERED WITH HARMONICS High Neutral Conductor Currcnts Perhaps the dominant harmonic problem encountered... in commercial facilities and some industrial plants has been the overheating of neutral conductors of 3-phase, 4-wire branch and feeder distribution systems. In a balanced, 3-phase, 4-wire wye system with phase-to-ncutral linear loads, the neutral current...

  1. Generation of longitudinal electric current by the transversal electromagnetic field in collisional plasma

    E-Print Network [OSTI]

    Latyshev, A V

    2015-01-01T23:59:59.000Z

    From kinetic Vlasov equation for collisional plasmas distribution function is received in square-law approximation on size of electromagnetic field. The formula for calculation electric current is deduced at any temperature (any degree of degeneration electronic gas). This formula contains one-dimension quadrature. It is shown, that the nonlinearity account leads to occurrence the longitudinal electric current directed along a wave vector. This longitudinal current is perpendicular to the known transversal classical current, received at the linear analysis. When frequency of collisions tends to zero, all received results for collisional plasma pass in known corresponding formulas for collisionless plasma. The case of small values of wave number is considered. It is shown, that the received quantity of longitudinal current at tendency of frequency of collisions to zero also passes in known corresponding expression of current for collisionless plasmas. Graphic comparison of dimensionless size of current is spen...

  2. On the Influence of Weak Magnetic and Electric Fields on the Fluctuations of Ionic Electric Currents in Blood Circulation

    E-Print Network [OSTI]

    Zakirjon Kanokov; Juern W. P. Schmelzer; Avazbek K. Nasirov

    2009-04-07T23:59:59.000Z

    An analysis of a variety of existing experimental data leads to the conclusion on the existence of a resonance mechanism allowing weak magnetic fields to affect biological processes. These fields may either be static magnetic fields comparable in magnitude with the magnetic field of the earth or weak ultra-low frequency time-dependent fields. So far, a generally accepted theoretical model allowing one to understand the effect of magnetic and electric fields on biological processes is not available. By this reason, it is not clear which characteristics of the fields, like magnetic and electric field strength, frequency of change of the field, shape of the electromagnetic wave, the duration of the magnetic or electric influence or some particular combination of them, are responsible for the biological effect. In the present analysis it is shown that external time-independent magnetic fields may cause a resonance amplification of ionic electric currents in biological tissues and, in particular, in the vasculature system due to a Brownian motion of charges. These resonance electric currents may cause necrotic changes in the tissues or blood circulation and in this way significantly affect the biological organism. The magnitude of the magnetic fields leading to resonance effects is estimated, it is shown that it depends significantly on the radius of the blood capillaries.

  3. Electrical Readout of the Local Nuclear Polarization in the Quantum Hall Effect: A Hyperfine Battery

    E-Print Network [OSTI]

    Lorke, Axel

    Electrical Readout of the Local Nuclear Polarization in the Quantum Hall Effect: A Hyperfine Battery A. Wu¨rtz,1,* T. Mu¨ller,1 A. Lorke,1, D. Reuter,2 and A. D. Wieck2 1 Laboratorium fu¨r Festko which utilizes separately contacted edge states to establish a local nuclear spin polarization

  4. Electric Field Control of Local Ferromagnetism with a Magnetoelectric

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField Campaign:INEAWater Use Goal 4: Efficient WaterMultiferroic Electric

  5. Electric Field Control of Local Ferromagnetism with a Magnetoelectric

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField Campaign:INEAWater Use Goal 4: EfficientMultiferroic Electric Field

  6. Electric Field Control of Local Ferromagnetism with a Magnetoelectric

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField Campaign:INEAWater Use Goal 4: EfficientMultiferroic Electric

  7. A Novel Wavelet Transform Based Transient Current Analysis for Fault Detectionand Localization *

    E-Print Network [OSTI]

    Bhunia, Swarup

    25.2 A Novel Wavelet Transform Based Transient Current Analysis for Fault Detectionand Localization. In this paper, we present a novel integrated method for fault detection and localization using wavelet transform based IDD waveform analysis. The time-frequency resolu- tion property of wavelet transform helps us

  8. Marine Tidal Current Electric Power Generation Technology: State of the Art and Current Status

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    resurgence in development of renewable ocean energy technology. Therefore, several demonstration projects appreciated as a vast renewable energy source. The energy is stored in oceans partly as thermal energy, partly categories: wave energy, marine and tidal current energy, ocean thermal energy, energy from salinity

  9. The Effect of Electric Fields In A Classic Introductory Physics Treatment of Eddy Current Forces

    E-Print Network [OSTI]

    P. J. Salzman; John Robert Burke; Susan M. Lea

    2006-07-23T23:59:59.000Z

    A simple model of eddy currents in which current is computed solely from magnetic forces acting on electrons proves accessible to introductory students and gives a good qualitative account of eddy current forces. However, this model cannot be complete; it ignores the electric fields that drive current outside regions of significant magnetic field. In this paper we show how to extend the model to obtain a boundary value problem for current density. Solution of this problem in polar coordinates shows that the electric field significantly affects the quantitative results and presents an exercise suitable for upper division students. We apply elliptic cylindrical coordinates to generalize the result and offer an exercise useful for teaching graduate students how to use non-standard coordinate systems.

  10. The distribution of the electric current in a watt-balance coil

    E-Print Network [OSTI]

    Sasso, Carlo Paolo; Mana, Giovanni

    2013-01-01T23:59:59.000Z

    In the watt balance experiment, separate measurements of the Lorentz and electromotive forces in a coil in a radial magnetic field enable a virtual comparison between mechanical and electric powers to be carried out, which lead to an accurate measurement of the Planck constant. This paper investigates the effect of a spatially inhomogeneous distribution of the electric current in the coil due to the higher or lower resistance of the outer or inner paths.

  11. PHYSICAL REVIEW B 86, 085310 (2012) Spin-polarized electric currents in diluted magnetic semiconductor heterostructures induced

    E-Print Network [OSTI]

    Ganichev, Sergey

    2012-01-01T23:59:59.000Z

    on the study of spin-polarized electric currents in diluted magnetic semiconductor (DMS) quantum wells in diluted magnetic semiconductors (DMS) are currently discussed as a key issue for the developmentPHYSICAL REVIEW B 86, 085310 (2012) Spin-polarized electric currents in diluted magnetic

  12. Local spin torque induced by electron electric dipole moment in the YbF molecule

    SciTech Connect (OSTI)

    Fukuda, Masahiro; Senami, Masato; Ogiso, Yoji; Tachibana, Akitomo [Department of Micro Engineering, Kyoto University, Kyoto 615-8540 (Japan)

    2014-10-06T23:59:59.000Z

    In this study, we show the modification of the equation of motion of the electronic spin, which is derived by the quantum electron spin vorticity principle, by the effect of the electron electric dipole moment (EDM). To investigate the new contribution to spin torque by EDM, using first principle calculations, we visualize distributions of the local spin angular momentum density and local spin torque density of the YbF molecule on which the static electric field and magnetic field are applied at t = 0.

  13. Hybrid single-electron transistor as a source of quantized electric current

    E-Print Network [OSTI]

    Loss, Daniel

    system is that hybrid tunnel junctions suppress tunnelling in an energy range determined by the gapLETTERS Hybrid single-electron transistor as a source of quantized electric current JUKKA P. PEKOLA of a hybrid normal-metal­ superconductor turnstile in the form of a one-island single- electron transistor

  14. Abstract Our current computer and electrical engineering practices are insufficient to assure

    E-Print Network [OSTI]

    Chin, Shiu-Kai

    Abstract ­ Our current computer and electrical engineering practices are insufficient to assure solving, cyber leadership and technical communication. We discuss a portion of the curriculum usedAfee attribute losses of up to a trillion dollars to these breaches [6]. The cost of security breaches have

  15. Multiple pole electromagnetic propulsion system with separated ballistic guidance and electrical current contact surfaces

    DOE Patents [OSTI]

    Sims, Jr., James R. (Los Alamos, NM)

    2008-07-15T23:59:59.000Z

    An electromagnetic propulsion system is disclosed having separate rails for ballistic guidance and for carrying current. In this system, one or more pairs of ballistic guidance rails are provided, with each ballistic guidance rail having a pair of current carrying rails joined to it to form a combined rail. Each combined rail is separated electrically from adjacent combined rails by electrically insulating blocks. Each of the current carrying rails in a given combined rail pair have the same electrical polarity, and the polarities alternate between adjacent combined rails. Armatures contact current carrying rails to complete the circuit to generate the accelerating Lorentz force on the armatures. Bore riders on the sabot and/or projectile are in contact with the ballistic guide rails. Separation of the current carrying and ballistic guidance functions increases resistance of the system to rail movement and bending, as well as reduced wear/damage to the rails. In further embodiments, a circumferential over wrap providing compressive force on the rails further increases resistance of the system to rail movement and bending.

  16. NEAR-FIELD SCANNING MICROWAVE MICROSCOPY: MEASURING LOCAL MICROWAVE PROPERTIES AND ELECTRIC FIELD DISTRIBUTIONS

    E-Print Network [OSTI]

    Anlage, Steven

    WEIF-49 NEAR-FIELD SCANNING MICROWAVE MICROSCOPY: MEASURING LOCAL MICROWAVE PROPERTIES AND ELECTRIC>;ics, University of Maryland, College Park, MD 2OY@-4lll, USA Abstract We describe the near-field scanning methods of scanning probe microscopy have been developed. Generally spea- king one can divide

  17. Enhancement of crystal homogeneity of protein crystals under application of an external alternating current electric field

    SciTech Connect (OSTI)

    Koizumi, H.; Uda, S.; Fujiwara, K.; Nozawa, J. [Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577 (Japan); Tachibana, M. [Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama, 236-0027 (Japan); Kojima, K. [Department of Education, Yokohama Soei University, 1 Miho-tyou, Midori-ku, Yokohama, 226-0015 (Japan)

    2014-10-06T23:59:59.000Z

    X-ray diffraction rocking-curve measurements were performed on tetragonal hen egg white (HEW) lysozyme crystals grown with and without the application of an external alternating current (AC) electric field. The crystal quality was assessed by the full width at half maximum (FWHM) value for each rocking curve. For two-dimensional maps of the FWHMs measured on the 440 and the 12 12 0 reflection, the crystal homogeneity was improved under application of an external electric field at 1 MHz, compared with that without. In particular, the significant improvement of the crystal homogeneity was observed for the 12 12 0 reflection.

  18. Mixed normal-superconducting states in the presence of strong electric currents

    E-Print Network [OSTI]

    Yaniv Almog; Bernard Helffer; Xing-Bin Pan

    2015-05-23T23:59:59.000Z

    We study the Ginzburg-Landau equations in the presence of large electric currents, that are smaller than the critical current where the normal state losses its stability. For steady-state solutions in the large $\\kappa$ limit, we prove that the superconductivity order parameter is exponentially small in a significant part of the domain, and small in the rest of it. Similar results are obtained for the time-dependent problem, in continuation of the paper by the two first authors [3]. We conclude by obtaining some weaker results, albeit similar, for steady-state solutions in the large domain limit.

  19. Harmonic effects of solar geomagnetically induced currents on the electrical distribution system in nuclear power plants

    SciTech Connect (OSTI)

    Carroll, D.P. [Florida Univ., Gainesville, FL (United States); Kasturi, S. [MOS, Inc., Melville, NY (United States); Subudhi, M.; Gunther, W. [Brookhaven National Lab., Upton, NY (United States)

    1992-12-31T23:59:59.000Z

    Most previous analysis on the effects of geomagnetically induced currents (GIC) on electric utility systems has steady-state phenomena, with the main interest in the generator step-up transformer and the off-site power system. This paper begins to investigate the possible effects that a GIC event might have on the power plant itself, by examining the harmonic distortion that could exist at various voltage levels in the on-site distribution system.

  20. Harmonic effects of solar geomagnetically induced currents on the electrical distribution system in nuclear power plants

    SciTech Connect (OSTI)

    Carroll, D.P. (Florida Univ., Gainesville, FL (United States)); Kasturi, S. (MOS, Inc., Melville, NY (United States)); Subudhi, M.; Gunther, W. (Brookhaven National Lab., Upton, NY (United States))

    1992-01-01T23:59:59.000Z

    Most previous analysis on the effects of geomagnetically induced currents (GIC) on electric utility systems has steady-state phenomena, with the main interest in the generator step-up transformer and the off-site power system. This paper begins to investigate the possible effects that a GIC event might have on the power plant itself, by examining the harmonic distortion that could exist at various voltage levels in the on-site distribution system.

  1. Fault Characterization using Induced Electric Currents Presumed to Undergo Anomalous Diffusion in Mason, Texas

    E-Print Network [OSTI]

    Murphy, Blaine Cullen

    2014-08-01T23:59:59.000Z

    FAULT CHARACTERIZATION USING INDUCED ELECTRIC CURRENTS PRESUMED TO UNDERGO ANOMALOUS DIFFUSION IN MASON, TEXAS A Thesis by BLAINE CULLEN MURPHY Submitted to the Office of Graduate and Professional Studies of Texas A&M University in partial... Blaine Cullen Murphy ABSTRACT A tensorial (9-component) controlled source electromagnetic survey over an oblique slip fault in Mason County, Texas was acquired and the data were analyzed in order to characterize the structure of the fault and observe...

  2. GENERATION OF ELECTRIC CURRENTS IN THE CHROMOSPHERE VIA NEUTRAL-ION DRAG

    SciTech Connect (OSTI)

    Krasnoselskikh, V. [LPC2E, CNRS-University of Orleans, 3A Avenue de la Recherche Scientifique, 45071 Orleans Cedex 2 (France); Vekstein, G. [School of Physics and Astronomy, University of Manchester, Alan Turing Building, Manchester M13 9PL (United Kingdom); Hudson, H. S.; Bale, S. D.; Abbett, W. P. [Space Sciences Laboratory, University of California at Berkeley, CA 94720 (United States)

    2010-12-01T23:59:59.000Z

    We consider the generation of electric currents in the solar chromosphere where the ionization level is typically low. We show that ambient electrons become magnetized even for weak magnetic fields (30 G); that is, their gyrofrequency becomes larger than the collision frequency while ion motions continue to be dominated by ion-neutral collisions. Under such conditions, ions are dragged by neutrals, and the magnetic field acts as if it is frozen-in to the dynamics of the neutral gas. However, magnetized electrons drift under the action of the electric and magnetic fields induced in the reference frame of ions moving with the neutral gas. We find that this relative motion of electrons and ions results in the generation of quite intense electric currents. The dissipation of these currents leads to resistive electron heating and efficient gas ionization. Ionization by electron-neutral impact does not alter the dynamics of the heavy particles; thus, the gas turbulent motions continue even when the plasma becomes fully ionized, and resistive dissipation continues to heat electrons and ions. This heating process is so efficient that it can result in typical temperature increases with altitude as large as 0.1-0.3 eV km{sup -1}. We conclude that this process can play a major role in the heating of the chromosphere and corona.

  3. District heating from electric-generating plants and municipal incinerators: local planner's assessment guide

    SciTech Connect (OSTI)

    Pferdehirt, W.; Kron, N. Jr.

    1980-11-01T23:59:59.000Z

    This guide is designed to aid local government planners in the preliminary evaluation of the feasibility of district heating using heat recovered from electric generating plants and municipal incinerators. System feasibility is indicated by: (1) the existence of an adequate supply of nearby waste heat, (2) the presence of a sufficiently dense and large thermal load, and (3) a favorable cost comparison with conventional heating methods. 34 references.

  4. Dynamics of the electric current in an ideal electron gas: a sound mode inside the quasi-particles

    E-Print Network [OSTI]

    Grozdanov, Sašo

    2015-01-01T23:59:59.000Z

    We study the equation of motion for the Noether current in an electron gas within the framework of the Schwinger-Keldysh Closed-Time-Path formalism. The equation is shown to be highly non-linear and irreversible even for a non-interacting, ideal gas of electrons at non-zero density. We truncate the linearised equation of motion, written as the Laurent series in Fourier space, so that the resulting expressions are local in time, both at zero and at small finite temperatures. Furthermore, we show that the one-loop Coulomb interactions only alter the physical picture quantitatively, while preserving the characteristics of the dynamics that the electric current exhibits in the absence of interactions. As a result of the composite nature of the Noether current, composite sound waves are found to be the dominant IR collective excitations at length scales between the inverse Fermi momentum and the mean free path that would exist in an interacting electron gas. We also discuss the difference and the transition betwee...

  5. Dynamics of the electric current in an ideal electron gas: a sound mode inside the quasi-particles

    E-Print Network [OSTI]

    Sašo Grozdanov; Janos Polonyi

    2015-01-26T23:59:59.000Z

    We study the equation of motion for the Noether current in an electron gas within the framework of the Schwinger-Keldysh Closed-Time-Path formalism. The equation is shown to be highly non-linear and irreversible even for a non-interacting, ideal gas of electrons at non-zero density. We truncate the linearised equation of motion, written as the Laurent series in Fourier space, so that the resulting expressions are local in time, both at zero and at small finite temperatures. Furthermore, we show that the one-loop Coulomb interactions only alter the physical picture quantitatively, while preserving the characteristics of the dynamics that the electric current exhibits in the absence of interactions. As a result of the composite nature of the Noether current, composite sound waves are found to be the dominant IR collective excitations at length scales between the inverse Fermi momentum and the mean free path that would exist in an interacting electron gas. We also discuss the difference and the transition between the hydrodynamical regime of an ideal gas, defined in this work, and the hydrodynamical regime in phenomenological hydrodynamics, which is normally used for the description of interacting gases.

  6. Analysis, Dimensioning and Robust Control of Shunt Active Filter for Harmonic Currents Compensation in Electrical Mains

    E-Print Network [OSTI]

    Tilli, Andrea; Conficoni, Christian

    2011-01-01T23:59:59.000Z

    In this chapter some results related to Shunt Active Filters (SAFs) and obtained by the authors and some coauthors are reported. SAFs are complex power electronics equipments adopted to compensate for cur-rent harmonic pollution in electric mains, due to nonlinear loads. By using a proper "floating" capacitor as energy reservoir, the SAF purpose is to inject in the line grid currents canceling the polluting har-monics. Control algorithms play a key role for such devices and, in general, in many power electronics applications. Moreover, systems theory is crucial, since it is the mathematical tool that enables a deep understanding of the involved dynamics of such systems, allowing a correct dimensioning, beside an effective control. As a matter of facts, current injection objective can be straightforwardly formulated as an output tracking control problem. In this fashion, the structural and insidious marginally-stable internal/zero dynamics of SAFs can be immediately highlighted and characterized in terms of si...

  7. The effects of solar-geomagnetically induced currents on electrical systems in nuclear power stations

    SciTech Connect (OSTI)

    Subudhi, M. [Brookhaven National Lab., Upton, NY (United States)] [Brookhaven National Lab., Upton, NY (United States); Carroll, D.P. [Florida Univ., Gainesville, FL (United States)] [Florida Univ., Gainesville, FL (United States); Kasturi, S. [MOS, Inc., Melville, NY (United States)] [MOS, Inc., Melville, NY (United States)

    1994-01-01T23:59:59.000Z

    This report presents the results of a study to evaluate the potential effects of geomagnetically induced currents (GICs) caused by the solar disturbances on the in-plant electrical distribution system and equipment in nuclear power stations. The plant-specific electrical distribution system for a typical nuclear plant is modeled using the ElectroMagnetic Transient Program (EMTP). The computer model simulates online equipment and loads from the station transformer in the switchyard of the power station to the safety-buses at 120 volts to which all electronic devices are connected for plant monitoring. The analytical model of the plant`s electrical distribution system is studied to identify the transient effects caused by the half-cycle saturation of the station transformers due to GIC. This study provides results of the voltage harmonics levels that have been noted at various electrical buses inside the plant. The emergency circuits appear to be more susceptible to high harmonics due to the normally light load conditions. In addition to steady-state analysis, this model was further analyzed simulating various plant transient conditions (e.g., loss of load or large motor start-up) occurring during GIC events. Detail models of the plant`s protective relaying system employed in bus transfer application were included in this model to study the effects of the harmonic distortion of the voltage input. Potential harmonic effects on the uniterruptable power system (UPS) are qualitatively discussed as well.

  8. Method for transferring thermal energy and electrical current in thin-film electrochemical cells

    DOE Patents [OSTI]

    Rouillard, Roger (Beloeil, CA); Domroese, Michael K. (South St. Paul, MN); Hoffman, Joseph A. (Minneapolis, MN); Lindeman, David D. (Hudson, WI); Noel, Joseph-Robert-Gaetan (St-Hubert, CA); Radewald, Vern E. (Austin, TX); Ranger, Michel (Lachine, CA); Sudano, Anthony (Laval, CA); Trice, Jennifer L. (Eagan, MN); Turgeon, Thomas A. (Fridley, MN)

    2003-05-27T23:59:59.000Z

    An improved electrochemical generator is disclosed. The electrochemical generator includes a thin-film electrochemical cell which is maintained in a state of compression through use of an internal or an external pressure apparatus. A thermal conductor, which is connected to at least one of the positive or negative contacts of the cell, conducts current into and out of the cell and also conducts thermal energy between the cell and thermally conductive, electrically resistive material disposed on a vessel wall adjacent the conductor. The thermally conductive, electrically resistive material may include an anodized coating or a thin sheet of a plastic, mineral-based material or conductive polymer material. The thermal conductor is fabricated to include a resilient portion which expands and contracts to maintain mechanical contact between the cell and the thermally conductive material in the presence of relative movement between the cell and the wall structure. The electrochemical generator may be disposed in a hermetically sealed housing.

  9. A graphical method for determining electrical conductivity of ionic solutions by direct current

    E-Print Network [OSTI]

    Simpson, Harold Navayne

    1961-01-01T23:59:59.000Z

    ~or Sub)est& CheuAstrg A ORAPHICAL NETHGD FOR DETEBNXNINO ELECTRICAL CONDUCTXVITX OF IONXC SOLUTXONS NX DIRECT CURRENT A Thed. e C A V C CI N g 0 0 C C Approved as 4o style and oontmt by~ ( of Coed, ttee Head of Departaent or Stadent... t ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 12 Ae PtSPktll4LOll df ?ll1dVAdld ~ ~ e ~ ~ o ~ ~ ~ ~ ~ ~ ~ ~ ~ t 12 Ee APP4TAld &SR PXOIORFQ ~ ~ ~ ~ ~ ~ ~ e ~ ~ ~ ~ ~ ~ ~ ~ 1 3 Ce Phkdd I ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ e ~ e ~ ~ ~ 16 1 ~ AppoF44IN ~ ~ t ~ ~ ~ 1 ~ t ~ ~ ~ ~ ~ ~ ~ ~ o...

  10. Universal electric current of interacting resonant-level models with asymmetric interactions: An extension of the Landauer formula

    E-Print Network [OSTI]

    Akinori Nishino; Naomichi Hatano; Gonzalo Ordonez

    2015-01-30T23:59:59.000Z

    We study the electron transport in open quantum-dot systems described by the interacting resonant-level models with Coulomb interactions. We consider the situation in which the quantum dot is connected to the left and right leads asymmetrically. We exactly construct many-electron scattering eigenstates for the two-lead system, where two-body bound states appear as a consequence of one-body resonances and the Coulomb interactions. By using an extension of the Landauer formula, we calculate the average electric current for the system under bias voltages in the first order of the interaction parameters. Through a renormalization-group technique, we arrive at the universal electric current, where we observe the suppression of the electric current for large bias voltages, i.e., negative differential conductance. We find that the suppressed electric current is restored by the asymmetry of the system parameters.

  11. Puget Sound Area Electric Reliability Plan. Appendix B : Local Generation Evaluation : Draft Environmental Impact Statement.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    1991-09-01T23:59:59.000Z

    The information and data contained in this Appendix was extracted from numerous sources. The principle sources used for technical data were Bonneville Power Administration's 1990 Resource Program along with its technical appendix, and Chapter 8 of the Draft 1991 Northwest Conservation and Electric Power Plan. All cost data is reported 1988 dollars unless otherwise noted. This information was supplemented by other data developed by Puget Sound utilities who participated on the Local Generation Team. Identifying generating resources available to the Puget Sound area involved a five step process: (1) listing all possible resources that might contribute power to the Puget Sound area, (2) characterizing the technology/resource status, cost and operating characteristics of these resources, (3) identifying exclusion criteria based on the needs of the overall Puget Sound Electric Reliability Plan study, (4) applying these criteria to the list of resources, and (5) summarizing of the costs and characteristics of the final list of resources. 15 refs., 20 tabs.

  12. Fourier-based schemes with modified Green operator for computing the electrical response of heterogeneous media with accurate local fields

    E-Print Network [OSTI]

    Boyer, Edmond

    Fourier-based schemes with modified Green operator for computing the electrical response of Fourier-based numerical schemes commonly used for computing the electrical or thermal response the discretization of Green's function, which is consistent with the pixel grid while retaining the local nature

  13. Electric field induced localization phenomena in a ladder network with superlattice configuration: Effect of backbone environment

    SciTech Connect (OSTI)

    Dutta, Paramita; Karmakar, S. N. [Condensed Matter Physics Division, Saha Institute of Nuclear Physics, Sector-I, Block-AF, Bidhannagar, Kolkata-700 064 (India); Maiti, Santanu K., E-mail: santanu.maiti@isical.ac.in [Physics and Applied Mathematics Unit, Indian Statistical Institute, 203 Barrackpore Trunk Road, Kolkata-700 108 (India)

    2014-09-15T23:59:59.000Z

    Electric field induced localization properties of a tight-binding ladder network in presence of backbone sites are investigated. Based on Green's function formalism we numerically calculate two-terminal transport together with density of states for different arrangements of atomic sites in the ladder and its backbone. Our results lead to a possibility of getting multiple mobility edges which essentially plays a switching action between a completely opaque to fully or partly conducting region upon the variation of system Fermi energy, and thus, support in fabricating mesoscopic or DNA-based switching devices.

  14. Composite lead for conducting an electrical current between 75-80K and 4.5K temperatures

    DOE Patents [OSTI]

    Negm, Yehia (Braintree, MA); Zimmerman, George O. (South Hamilton, MA); Powers, Jr., Robert E. (East Boston, MA); McConeghy, Randy J. (Waxahachie, TX); Kaplan, Alvaro (Brookline, MA)

    1994-12-27T23:59:59.000Z

    A composite lead is provided which electrically links and conducts a current between about 75-80K. and liquid helium temperature of about 4.5K. The composite lead may be employed singly or in multiples concurrently to provide conduction of electrical current from normal conductors and semi-conductors at room temperature to superconductors operating at 4.5K. In addition, a variety of organizationl arrangements and assemblies are provided by which the mechanical strength and electrical reliability of the composite lead is maintained.

  15. Composite lead for conducting an electrical current between 75--80K and 4. 5K temperatures

    DOE Patents [OSTI]

    Negm, Y.; Zimmerman, G.O.; Powers, R.E. Jr.; McConeghy, R.J.; Kaplan, A.

    1994-12-27T23:59:59.000Z

    A composite lead is provided which electrically links and conducts a current between about 75-80K and liquid helium temperature of about 4.5K. The composite lead may be employed singly or in multiples concurrently to provide conduction of electrical current from normal conductors and semi-conductors at room temperature to superconductors operating at 4.5K. In addition, a variety of organizational arrangements and assemblies are provided by which the mechanical strength and electrical reliability of the composite lead is maintained. 12 figures.

  16. Heat Transfer -2 A long copper wire is used to carry an electric current and has an electrical resistance of 0.4 ohm

    E-Print Network [OSTI]

    Virginia Tech

    Heat Transfer - 2 A long copper wire is used to carry an electric current and has an electrical and the insulation reaching 90 0 C. You may neglect heat transfer to the air during this process, but justify conductivity k = 300 W/m-0 C Density = 8900 kg/m3 Specific heat capacity Cp = 380 J/kg-0 C a) (10 pts) Draw

  17. Control Strategies for Electric Vehicle (EV) Charging Using Renewables and Local Storage

    SciTech Connect (OSTI)

    Castello, Charles C [ORNL; LaClair, Tim J [ORNL; Maxey, L Curt [ORNL

    2014-01-01T23:59:59.000Z

    The increase of electric vehicle (EV) and plug-in hybrid-electric vehicle (PHEV) adoption creates a need for more EV supply equipment (EVSE) infrastructure (i.e., EV chargers). The impact of EVSE installations could be significant due to limitations in the electric grid and potential demand charges for residential and commercial customers. The use of renewables (e.g., solar) and local storage (e.g., battery bank) can mitigate loads caused by EVSE on the electric grid. This would eliminate costly upgrades needed by utilities and decrease demand charges for consumers. This paper aims to explore control systems that mitigate the impact of EVSE on the electric grid using solar energy and battery banks. Three control systems are investigated and compared in this study. The first control system discharges the battery bank at a constant rate during specific times of the day based on historical data. The second discharges the battery bank based on the number of EVs charging (linear) and the amount of solar energy being generated. The third discharges the battery bank based on a sigmoid function (non-linear) in response to the number of EVs charging, and also takes into consideration the amount of renewables being generated. The first and second control systems recharge the battery bank at night when demand charges are lowest. The third recharges the battery bank at night and during times of the day when there is an excess of solar. Experiments are conducted using data from a private site that has 25 solar-assisted charging stations at Oak Ridge National Laboratory (ORNL) in Oak Ridge, TN and 4 at a public site in Nashville, TN. Results indicate the third control system having better performance, negating up to 71% of EVSE load, compared with the second control system (up to 61%) and the first control system (up to 58%).

  18. Curvature and torsion effects in electric current-carrying twisted solar loops

    SciTech Connect (OSTI)

    Garcia de Andrade, L. C. [Departamento de Fisica Teorica-IF-UERJ, Rua Sao Francisco Xavier 524, Rio de Janeiro, RJ Maracana, CEP 20550-013 Brazil (Brazil)

    2006-11-15T23:59:59.000Z

    Riemannian geometry of the electric current-carrying solar loops is obtained from a thin tube approximation of twisted magnetic flux tubes. The Frenet torsion and curvature affect the electron drift speed of the electrons of the current along the toroidal direction of the tube. The twist of the tube is computed and it is shown that twist is maximum at the surface of the tube and minimum at the tube axis. This acts as inertia effects to the electron drift. The higher the torsion of the tube axis the smaller is the velocity along the direction of the tube. This effect is similar to the one obtained by Tyspin et al. [Physics of Plasmas, 5, 3385 (1998)] in the case of toroidal devices with curvature and torsion. Here the simple geometrical effects are enough to slow down the currents and no viscosity in the fluid is taken into account. A slight compressibility of the plasma flow is due to the twist of the tube. As applications of these ideas, it is shown that torsion effects are not enough to accelerate electrons up to relativistic energies, and the torsion is computed in the case of the force-free loop. The value of torsion is used to compute the electron acceleration in two distinct cases. The first is the case when the Riemann loop suffers the action of a dc electric sub-Dreicer field, where the magnetic field is direct along the magnetic loop, and the loop moves along the orthogonal direction to the loop as in vortex filaments. In this case, the acceleration is shown to be of the order of 10{sup -17} cm s{sup -2} for a solar torsion of the order of 10{sup -4} cm{sup -1}. The second case is for the curvature drift contribution, where torsion is also present. In this case we show that torsion is not present in the velocity drift but just in the electron acceleration. Though these values are extremely low, they can be improved by considering small loops lowering the radius of the loop which, here, was taken as 600 km. Curvature drift acceleration is also estimated as 100 cm s{sup -2}.

  19. General Physics II Exam 1 -Chs. 16,17,18 -Electric Fields, Potential, Current Feb. 8, 2010 Name Rec. Instr. Rec. Time

    E-Print Network [OSTI]

    Wysin, Gary

    General Physics II Exam 1 - Chs. 16,17,18 - Electric Fields, Potential, Current Feb. 8, 2010 Name. These charges produce an electric field in the surrounding region. a) (6) Find the x & y components of the electric field E at point A. b) (6) Find the magnitude and direction of the electric field at point A. c

  20. Smart buildings with electric vehicle interconnection as buffer for local renewables?

    E-Print Network [OSTI]

    Stadler, Michael

    2012-01-01T23:59:59.000Z

    and integrated in smart buildings Is it that simple or doesN ATIONAL L ABORATORY Smart buildings with electric vehicleopportunity employer. Smart buildings with electric vehicle

  1. Smart buildings with electric vehicle interconnection as buffer for local renewables?

    E-Print Network [OSTI]

    Stadler, Michael

    2012-01-01T23:59:59.000Z

    N ATIONAL L ABORATORY Smart buildings with electric vehicleopportunity employer. Smart buildings with electric vehicleand integrated in smart buildings Is it that simple or does

  2. Dynamics of Electric Currents, Magnetic Field Topology and Helioseismic Response of a Solar Flare

    E-Print Network [OSTI]

    Sharykin, I N

    2015-01-01T23:59:59.000Z

    The solar flare on July 30, 2011 was of a modest X-ray class (M9.3), but it made a strong photospheric impact and produced a "sunquake," observed with the Helioseismic and Magnetic Imager (HMI) on NASA's Solar Dynamics Observatory (SDO). In addition to the helioseismic waves (also observed with the SDO/AIA instrument), the flare caused a large expanding area of white-light emission and was accompanied by substantial restructuring of magnetic fields, leading to the rapid formation of a sunspot structure in the flare region. The flare produced no significant hard X-ray emission and no coronal mass ejection. This indicates that the flare energy release was mostly confined to the lower atmosphere. The absence of significant coronal mass ejection rules out magnetic rope eruption as a mechanism of helioseismic waves. We discuss the connectivity of the flare energy release with the electric currents dynamics and show the potential importance of high-speed plasma flows in the lower solar atmosphere during the flare e...

  3. Response to ``Comment on `Parallel electric fields in the upward current region of the aurora: Numerical solutions'''

    E-Print Network [OSTI]

    California at Berkeley, University of

    of H is largely conserved. Our article identifies several areas where a dynamic simulation is needed , decidedly the opposite argument used in his abstract fully dynamic simulations are needed for the lowestResponse to ``Comment on `Parallel electric fields in the upward current region of the aurora

  4. Fuzzy-Based Electric Current Dependency on an MR Damper Model Javier A. Ruiz-Cabrera, Ruben Morales-Menendez,

    E-Print Network [OSTI]

    Boyer, Edmond

    , the first step in designing a control strategy for a suspension system is, usually, modelling the behaviorFuzzy-Based Electric Current Dependency on an MR Damper Model Javier A. Ruiz-Cabrera, Ruben Morales to develop a model for the system. The present research is centered on proposing and analyzing a fuzzy

  5. Existence and stability of superconducting solutions for the Ginzburg-Landau equations in the presence of weak electric currents

    E-Print Network [OSTI]

    Yaniv Almog; Leonid Berlyand; Dmitry Golovaty; Itai Shafrir

    2014-09-07T23:59:59.000Z

    For a reduced Ginzburg-Landau model in which the magnetic field is neglected, we prove, for weak electric currents, the existence of a steady-state solution in a vicinity of the purely superconducting state. We further show that this solution is linearly stable.

  6. Characterization Of The Local Electrical Environment In An Electrically-guided Protein Patterning System Incorporating Antifouling Self-assembled Monolayer

    E-Print Network [OSTI]

    Park, Jinseon

    2011-10-21T23:59:59.000Z

    for delicate single microtubule manipulation, further studies need to be done on PEG-SAMs and electrophoresis. As a foundation of this goal, we examined the electric field in an aqueous solution between two planar electrodes and the compatibility...

  7. Recommended practice for fire protection for electric generating plants and high voltage direct current converter stations. 2005 ed.

    SciTech Connect (OSTI)

    NONE

    2005-07-01T23:59:59.000Z

    The standard outlines fire safety recommendations for gas, oil, coal, and alternative fuel electric generating plants including high voltage direct current converter stations and combustion turbine units greater than 7500 hp used for electric generation. Provisions apply to both new and existing plants. The document provides fire prevention and fire protection recommendations for the: safety of construction and operating personnel; physical integrity of plant components; and continuity of plant operations. The 2005 edition includes revisions and new art that clarify existing provisions. 5 annexes.

  8. Smart buildings with electric vehicle interconnection as buffer for local renewables?

    E-Print Network [OSTI]

    Stadler, Michael

    2012-01-01T23:59:59.000Z

    Judy Lai, and Vincent Battaglia: “The added economic andMarnay, and Vincent Battaglia: “Plug-in Electric Vehicle

  9. Rotary electrical contact device and method for providing current to and/or from a rotating member

    DOE Patents [OSTI]

    Koplow, Jeffrey P

    2013-11-19T23:59:59.000Z

    Examples of rotary electrical connectors include a first pair and a second pair of opposing sheaves coupled together by intersecting first shaft connecting the first pair of opposing sheaves and a second shaft connecting the second pair of opposing sheaves, and at least partially electrically conductive belt disposed about respective perimeters of the first pair and second pair of opposing sheaves and adapted to remain in contact with at least a portion of the respective perimeters of the sheaves during motion of said sheaves. In example devices, one of the plurality of sheaves may remain stationary during operation of the device while the remaining sheaves rotate and/or orbit around a center axis of the stationary sheave, the device being configured to couple current between a stationary power source and a rotating member through the electrically conductive belt.

  10. An electrical network model for computing current distribution in a spirally wound lithium ion cell

    E-Print Network [OSTI]

    Patnaik, Somani

    2012-01-01T23:59:59.000Z

    Lithium ion batteries are the most viable option for electric vehicles but they still have significant limitations. Safety of these batteries is one of the concerns that need to be addressed when they are used in mainstream ...

  11. Current Legal and Institutional Frameworks for Investing in Lower Carbon Electricity in China

    E-Print Network [OSTI]

    Lang, X; Reiner, David; Neuhoff, Karsten

    ), which is a state-owned and state-controlled enterprise, is the largest electric power planning and engineering corporation in China, having undertaken the survey and design of 60% of power generation and delivery projects in China (CPECC, 2007... 15 generation. To support the plan, policies such as ‘replacing small units by large units’ and ‘regulations on managing renewable power’ have been put forward. In principle, financing lower carbon electricity including higher efficiency coal...

  12. Boston.com / News / Local / New fuel cell uses germs to generate electricity Page 1 THIS STORY HAS BEEN FORMATTED FOR EASY PRINTING

    E-Print Network [OSTI]

    Lovley, Derek

    Boston.com / News / Local / New fuel cell uses germs to generate electricity Page 1 THIS STORY HAS BEEN FORMATTED FOR EASY PRINTING New fuel cell uses germs to generate electricity By Gareth Cook, Globe://www.boston.com/news/local/articles/2003/09/08/new_fuel_cell_uses_germs_to_generate_electricity?mode=9:15:28 AM 9/8/2003 #12;Boston

  13. Effects of electrical voltage/current on farm animals: How to detect and remedy problems. Agriculture handbook

    SciTech Connect (OSTI)

    Lefcourt, A.M.

    1991-12-01T23:59:59.000Z

    The handbook examines (1) the history of stray voltage/current problems on farms, (2) the physical and electrical sources of stray voltage/current phenomena, (3) the physiological and behavioral bases for losses in milk production, (4) methods for identifying and detecting stray voltage/current problems, (5) methods for mitigating such problems, and (6) areas where further research may be warranted. While the primary emphasis is on cattle and dairy farms, the theories and procedures discussed are completely relevant to all types of livestock and livestock housing facilities. Recommendations are made for action levels and concerning mitigation techniques. The fundamental conclusion of the handbook is that stray voltages/currents can be reduced to acceptable levels.

  14. NUMERICAL SOLUTION OF A TRANSIENT NON-LINEAR AXISYMMETRIC EDDY CURRENT MODEL WITH NON-LOCAL

    E-Print Network [OSTI]

    RodrĂ­guez, Rodolfo

    NUMERICAL SOLUTION OF A TRANSIENT NON-LINEAR AXISYMMETRIC EDDY CURRENT MODEL WITH NON@ing-mat.udec.cl This paper deals with an axisymmetric transient eddy current problem in conductive nonlinear magnetic media of the proposed scheme. Keywords: transient eddy current problem; electromagnetic losses; nonlinear magnetic

  15. On the possibility of highlevel transient coronal mass ejectioninduced ionospheric current coupling to electric

    E-Print Network [OSTI]

    Simpson, Jamesina J.

    and recent magnetometer measurements, both of which indicate the existence of such rapid ionospheric current mechanisms involving the (long timescale) induction of geomagnetically induced currents, which heavily depend to warrant measurements of rapid ionospheric current fluctuations at timescales much shorter than considered

  16. Controlling the set of carbon-fiber embedded cement with electric current

    DOE Patents [OSTI]

    Mattus, Alfred J.

    2004-06-15T23:59:59.000Z

    A method for promoting cement or concrete set on demand for concrete that has been chemically retarded by adding carbon fiber to the concrete, which enables it to become electrically conductive, sodium tartrate retardant, and copper sulfate which forms a copper tartrate complex in alkaline concrete mixes. Using electricity, the concrete mix anodically converts the retarding tartrate to an insoluble polyester polymer. The carbon fibers act as a continuous anode surface with a counter electrode wire embedded in the mix. Upon energizing, the retarding effect of tartrate is defeated by formation of the polyester polymer through condensation esterification thereby allowing the normal set to proceed unimpeded.

  17. Acceleration of electric current-carrying string loop near a Schwarzschild black hole immersed in an asymptotically uniform magnetic field

    E-Print Network [OSTI]

    Arman Tursunov; Martin Kološ; Zden?k Stuchlík; Bobomurat Ahmedov

    2014-09-18T23:59:59.000Z

    We study the acceleration of an electric current-carrying and axially-symmetric string loop initially oscillating in the vicinity of a Schwarzschild black hole embedded in an external asymptotically uniform magnetic field. The plane of the string loop is orthogonal to the magnetic field lines and the acceleration of the string loop occurs due to the transmutation effect turning in the deep gravitational field the internal energy of the oscillating strings to the energy of their translational motion along the axis given by the symmetry of the black hole spacetime and the magnetic field. We restrict our attention to the motion of string loop with energy high enough, when it can overcome the gravitational attraction and escape to infinity. We demonstrate that for the current-carrying string loop the transmutation effect is enhanced by the contribution of the interaction between the electric current of the string loop and the external magnetic field and we give conditions that have to be fulfilled for an efficient acceleration. The Schwarzschild black hole combined with the strong external magnetic field can accelerate the current-carrying string loop up to the velocities close to the speed of light $v \\sim c$. Therefore, the string loop transmutation effect can potentially well serve as an explanation for acceleration of highly relativistic jets observed in microquasars and active galactic nuclei.

  18. Electrical conductivity and current-voltage characteristics of alumina with or without neutron and electron irradiation

    E-Print Network [OSTI]

    Howlader, Matiar R

    irradiation. Radiation induced conductivity (RIC) was observed for all speci- mens under neutron and electron of the leading candidates for insula- tor and radiofrequency window/feedthrough applica- tions in magnetic fusion of alumina. Radiation induced conductivity (RIC) and radiation induced electrical de- gradation (RIED

  19. Paradox of Peroxy Defects and Positive Holes in Rocks Part II: Outflow of Electric Currents from Stressed Rocks

    E-Print Network [OSTI]

    Scoville, John; Freund, Friedemann

    2015-01-01T23:59:59.000Z

    Understanding the electrical properties of rocks is of fundamental interest. We report on currents generated when stresses are applied. Loading the center of gabbro tiles, 30x30x0.9 cm$^3$, across a 5 cm diameter piston, leads to positive currents flowing from the center to the unstressed edges. Changing the constant rate of loading over 5 orders of magnitude from 0.2 kPa/s to 20 MPa/s produces positive currents, which start to flow already at low stress levels, rock-forming minerals. The peroxy break-up leads to positive holes h$^{\\bullet}$, i.e. electronic states associated with O$^-$ in a matrix of O$^{2-}$, plus electrons, e'. Propagating...

  20. Current:

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling Corp -KWatertowni5W 95.5x-L* d!Qwner contacted n

  1. Current:

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling Corp -KWatertowni5W 95.5x-L* d!Qwner contacted

  2. Current shunting and formation of stationary shock waves during electric explosions of metal wires in air

    SciTech Connect (OSTI)

    Ivanenkov, G. V.; Gus'kov, S. Yu.; Barishpol'tsev, D. V. [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)

    2010-01-15T23:59:59.000Z

    Results of experiments on the generation of shock waves during electric explosions of fine copper and tungsten wires in air are analyzed. The generation mechanism of stationary shock wave by a plasma piston formed during the shunting breakdown of the electrode gap in the course of a wire explosion is investigated. The role of structural elements of such discharges, such as the core, corona, and wire environment, is analyzed.

  3. Current-driven Domain Wall Dynamics And Its Electric Signature In Ferromagnetic Nanowires

    E-Print Network [OSTI]

    Liu, Yang

    2012-10-19T23:59:59.000Z

    We study current-induced domain wall dynamics in a thin ferromagnetic nanowire. We derive the effective equations of domain wall motion, which depend on the wire geometry and material parameters. We describe the procedure to determine...

  4. Measuring Joule heating and strain induced by electrical current with Moire interferometry

    SciTech Connect (OSTI)

    Chen Bicheng; Basaran, Cemal [Electronic Packaging Laboratory, State University of New York at Buffalo, 102 Ketter Hall, Buffalo, New York 14260 (United States)

    2011-04-01T23:59:59.000Z

    This study proposes a new method to locate and measure the temperature of the hot spots caused by Joule Heating by measuring the free thermal expansion in-plane strain. It is demonstrated that the hotspot caused by the Joule heating in a thin metal film/plate structure can be measured by Phase shifting Moire interferometry with continuous wavelet transform (PSMI/CWT) at the microscopic scale. A demonstration on a copper film is conducted to verify the theory under different current densities. A correlation between the current density and strain in two orthogonal directions (one in the direction of the current flow) is proposed. The method can also be used for the measurement of the Joule heating in the microscopic solid structures in the electronic packaging devices. It is shown that a linear relationship exists between current density squared and normal strains.

  5. The Energy Box : comparing locally automated control strategies of residential electricity consumption under uncertainty

    E-Print Network [OSTI]

    Livengood, Daniel James

    2011-01-01T23:59:59.000Z

    The Energy Box is an always-on background processor automating the temporal management of one's home or small business electrical energy usage. Cost savings are achieved in a variety of environments, ranging from at pricing ...

  6. ELECTRIC

    Office of Legacy Management (LM)

    you nay give us will be greatly uppreckted. VPry truly your23, 9. IX. Sin0j3, Mtinager lclectronics and Nuclear Physics Dept. omh , WESTINGHOUSE-THE NAT KING IN ELECTRICITY...

  7. A weak-value model for virtual particles supplying the electric current in graphene: the minimal conductivity and the Schwinger mechanism

    E-Print Network [OSTI]

    Kazuhiro Yokota; Nobuyuki Imoto

    2014-07-04T23:59:59.000Z

    We propose a model for the electric current in graphene in which electric carriers are supplied by virtual particles allowed by the uncertainty relations. The process to make a virtual particle real is described by a weak value of a group velocity: the velocity is requisite for the electric field to give the virtual particle the appropriate changes of both energy and momentum. With the weak value, we approximately estimate the electric current, considering the ballistic transport of the electric carriers. The current shows the quasi-Ohimic with the minimal conductivity of the order of e^2/h per channel. Crossing a certain ballistic time scale, it is brought to obey the Schwinger mechanism.

  8. Introduction to structural solutions by electrical analogies using an alternating current network calculator

    E-Print Network [OSTI]

    Blumberg, Randolph

    1950-01-01T23:59:59.000Z

    V x x 139. 5 x 0. 0004 0. 0558 inches A A E 41 TABLE XIII STRESSES AND DEFLECTIONS GF THE STATICALLY INDETERMINATE TRUSS OF FIG, 9 COMPARISON OF CALCULATED AND MEASURED VALUES AREA OF MEMBER 1 IS 1/10 AREA OF OTHER MEMBERS Member Si, ress...' ANALOGOUS ELECTR ICAL CIRCUIT 14 ' 58 6 4$ 46 51 58 50 57 49 I 56 4 8 - 2. 0 4mperes '8 TABLE I STRESSES ARD DEFLECT IOMS OF THE STATICALLY DETERMINATE TRUSS OF FIG. 3 CALCULATED VALUES Member Length in Feet A S Area Stress...

  9. Recent developments and future directions Coherently controlled electrical currents at surfaces

    E-Print Network [OSTI]

    of ultrashort current pulses at surfaces. Two phase-locked laser pulses with carrier frequencies a and a/2 of the electrons due to vibronic or electronic excitation within the junction can be neglected. In this regime e­ Metal Sample Excitations Pulses =90° Time­Delayt PhotoemissionPulse Photoelectrons 0.0 0.5 1

  10. ANALYSIS OF ELECTRIC CURRENT HELICITY IN ACTIVE REGIONS ON THE BASIS OF VECTOR MAGNETOGRAMS

    E-Print Network [OSTI]

    Yurchyshyn, Vasyl

    can suggest that the build up of large­scale currents in an active region due to small­scale of Sciences, Beijing 100080, China Abstract. The problem of (dc) magnetic field energy build up in the solar seemingly can occur in any active region, the energy build up mechanism must be easy accessible for all

  11. Abstract--Currently, there is a national push for a smarter electric grid, one that is more controllable and flexible. The full

    E-Print Network [OSTI]

    Ferris, Michael C.

    controllable and flexible. The full control of transmission assets are not currently built into electric network optimization models. Optimal transmission switching is a straightforward way to leverage grid. Previous papers have shown that optimizing the network topology improves the dispatch of electrical

  12. GAMMA RADIATION INTERACTS WITH MELANIN TO ALTER ITS OXIDATION-REDUCTION POTENTIAL AND RESULTS IN ELECTRIC CURRENT PRODUCTION

    SciTech Connect (OSTI)

    Turick, C.; Ekechukwu, A.; Milliken, C.

    2011-05-17T23:59:59.000Z

    The presence of melanin pigments in organisms is implicated in radioprotection and in some cases, enhanced growth in the presence of high levels of ionizing radiation. An understanding of this phenomenon will be useful in the design of radioprotective materials. However, the protective mechanism of microbial melanin in ionizing radiation fields has not yet been elucidated. Here we demonstrate through the electrochemical techniques of chronoamperometry, chronopotentiometry and cyclic voltammetry that microbial melanin is continuously oxidized in the presence of gamma radiation. Our findings establish that ionizing radiation interacts with melanin to alter its oxidation-reduction potential. Sustained oxidation resulted in electric current production and was most pronounced in the presence of a reductant, which extended the redox cycling capacity of melanin. This work is the first to establish that gamma radiation alters the oxidation-reduction behavior of melanin, resulting in electric current production. The significance of the work is that it provides the first step in understanding the initial interactions between melanin and ionizing radiation taking place and offers some insight for production of biomimetic radioprotective materials.

  13. Consistent Definitions of Flux and Electric and Magnetic Current in Abelian Projected SU(2) Lattice Gauge Theory

    E-Print Network [OSTI]

    Richard W. Haymaker; Takayuki Matsuki

    2003-10-07T23:59:59.000Z

    Through the use of a lattice U(1) Ward-Takahashi identity, one can find a precise definition of flux and electric four-current that does not rely on the continuum limit. The magnetic four-current defined for example by the DeGrand-Toussaint construction introduces order a^2 errors in the field distributions. We advocate using a single definition of flux in order to be consistent with both the electric and magnetic Maxwell's equations at any lattice spacing. In a U(1) theory the monopoles are slightly smeared by this choice, i.e. are no longer associated with a single lattice cube. In Abelian projected SU(2) the consistent definition suggests further modifications. For simulations in the scaling window, we do not foresee large changes in the standard analysis of the dual Abrikosov vortex in the maximal Abelian gauge because the order a^2 corrections have small fluctuations and tend to cancel out. However in other gauges, the consequences of our definitions could lead to large effects which may help in understanding the choice of gauge. We also examine the effect of truncating all monopoles except for the dominant cluster on the profile of the dual Abrikosov vortex.

  14. Clean Energy State Program Guide: Mainstreaming Solar Electricity Strategies for States to Build Local Markets

    Broader source: Energy.gov [DOE]

    A PV mapping tool visually represents a specific site and calculates PV system size and projected electricity production. This report identifies the commercially available solar mapping tools and thoroughly summarizes the source data type and resolution, the visualization software program being used, user inputs, calculation methodology and algorithms, map outputs, and development costs for each map.

  15. Mechanism of direct current electrical charge conduction in p-toluenesulfonate doped polypyrrole/carbon composites

    SciTech Connect (OSTI)

    Kumar, Amit [National Physical Laboratory, Council of Scientific and Industrial Research, Dr. K. S. Krishnan Marg, New Delhi 110012 (India); Department of Chemistry, Banaras Hindu University, Varanasi 221005 (India); Singh, Rajiv K.; Singh, Hari K.; Singh, Ramadhar, E-mail: ramadhar@mail.nplindia.org [National Physical Laboratory, Council of Scientific and Industrial Research, Dr. K. S. Krishnan Marg, New Delhi 110012 (India); Srivastava, Pankaj [Department of Chemistry, Banaras Hindu University, Varanasi 221005 (India)

    2014-03-14T23:59:59.000Z

    Polypyrrole/carbon (PPy/C) composites have been synthesized using varying concentration of p-toluenesulfonate (pTS) dopant by surface initiated in-situ chemical oxidative polymerization. The synthesis and influence of pTS on the structure of the PPy/C composites are confirmed by Fourier transform infrared studies and the morphological features have been examined by scanning electron microscopy. X-ray photoelectron spectroscopy, employed to examine the surface composition and doping level of these composites, confirms the anionic doping into the polymer backbone. Electron spin resonance measurement has been carried out on these samples to identify the nature of the charge carriers and their concentration at different doping levels. The dc electrical conductivity of these composites has been measured in the temperature range ?10–305?K. The observed results have been analyzed in the framework of existing theoretical models. Different Mott's parameters, such as characteristic temperature (T{sub 0}), density of states at the Fermi level (N(E{sub F})), average hopping distance (R), and average hopping energy (W), evaluated from dc conductivity data supports the applicability of Mott's three dimensional variable range hopping mechanism in this system.

  16. Current status of environmental, health, and safety issues of lithium ion electric vehicle batteries

    SciTech Connect (OSTI)

    Vimmerstedt, L.J.; Ring, S.; Hammel, C.J.

    1995-09-01T23:59:59.000Z

    The lithium ion system considered in this report uses lithium intercalation compounds as both positive and negative electrodes and has an organic liquid electrolyte. Oxides of nickel, cobalt, and manganese are used in the positive electrode, and carbon is used in the negative electrode. This report presents health and safety issues, environmental issues, and shipping requirements for lithium ion electric vehicle (EV) batteries. A lithium-based electrochemical system can, in theory, achieve higher energy density than systems using other elements. The lithium ion system is less reactive and more reliable than present lithium metal systems and has possible performance advantages over some lithium solid polymer electrolyte batteries. However, the possibility of electrolyte spills could be a disadvantage of a liquid electrolyte system compared to a solid electrolyte. The lithium ion system is a developing technology, so there is some uncertainty regarding which materials will be used in an EV-sized battery. This report reviews the materials presented in the open literature within the context of health and safety issues, considering intrinsic material hazards, mitigation of material hazards, and safety testing. Some possible lithium ion battery materials are toxic, carcinogenic, or could undergo chemical reactions that produce hazardous heat or gases. Toxic materials include lithium compounds, nickel compounds, arsenic compounds, and dimethoxyethane. Carcinogenic materials include nickel compounds, arsenic compounds, and (possibly) cobalt compounds, copper, and polypropylene. Lithiated negative electrode materials could be reactive. However, because information about the exact compounds that will be used in future batteries is proprietary, ongoing research will determine which specific hazards will apply.

  17. Current status of environmental, health, and safety issues of lithium polymer electric vehicle batteries

    SciTech Connect (OSTI)

    Corbus, D.; Hammel, C.J.

    1995-02-01T23:59:59.000Z

    Lithium solid polymer electrolyte (SPE) batteries are being investigated by researchers worldwide as a possible energy source for future electric vehicles (EVs). One of the main reasons for interest in lithium SPE battery systems is the potential safety features they offer as compared to lithium battery systems using inorganic and organic liquid electrolytes. However, the development of lithium SPE batteries is still in its infancy, and the technology is not envisioned to be ready for commercialization for several years. Because the research and development (R&D) of lithium SPE battery technology is of a highly competitive nature, with many companies both in the United States and abroad pursuing R&D efforts, much of the information concerning specific developments of lithium SPE battery technology is proprietary. This report is based on information available only through the open literature (i.e., information available through library searches). Furthermore, whereas R&D activities for lithium SPE cells have focused on a number of different chemistries, for both electrodes and electrolytes, this report examines the general environmental, health, and safety (EH&S) issues common to many lithium SPE chemistries. However, EH&S issues for specific lithium SPE cell chemistries are discussed when sufficient information exists. Although lithium batteries that do not have a SPE are also being considered for EV applications, this report focuses only on those lithium battery technologies that utilize the SPE technology. The lithium SPE battery technologies considered in this report may contain metallic lithium or nonmetallic lithium compounds (e.g., lithium intercalated carbons) in the negative electrode.

  18. Dynamics of electrical double layer formation in room-temperature ionic liquids under constant-current charging conditions

    SciTech Connect (OSTI)

    Jiang, Xikai [ORNL] [ORNL; Huang, Jingsong [ORNL] [ORNL; Zhao, Hui [University of Nevada, Las Vegas] [University of Nevada, Las Vegas; Sumpter, Bobby G [ORNL] [ORNL; Qiao, Rui [Clemson University] [Clemson University

    2014-01-01T23:59:59.000Z

    We report detailed simulation results on the formation dynamics of an electrical double layer (EDL) inside an electrochemical cell featuring room-temperature ionic liquids (RTILs) enclosed between two planar electrodes. Under relatively small charging currents, the evolution of cell potential during charging can be suitably predicted by the Landau-Ginzburg-type continuum model proposed recently (M. Z. Bazant, B. D. Storey, and A. A. Kornyshev, Phys. Rev. Lett., 106, 046102, 2011). Under very large charging currents, the cell potential shows pronounced oscillation during the initial stage of charging, a feature not captured by the continuum model. Such oscillation originates from the sequential growth of the ionic space charge layers near the electrode surface, allowing the evolution of EDLs in RTILs with time, an atomistic process difficult to visualize experimentally, to be studied by analyzing the cell potential under constant current charging conditions. While the continuum model cannot predict the potential oscillation under such far-from-equilibrium charging conditions, it can nevertheless qualitatively capture the growth of cell potential during the later stage of charging. Improving the continuum model by introducing frequency-dependent dielectric constant and density-dependent ion diffusion coefficients may help to further extend the applicability of the model. Keywords: ionic

  19. Physics II Exam 2 -Chs. 18A,19,20 -Electric Current, Magnetic Field Feb. 23, 2009 Name Rec. Instr. Rec. Time

    E-Print Network [OSTI]

    Wysin, Gary

    Physics II Exam 2 - Chs. 18A,19,20 - Electric Current, Magnetic Field Feb. 23, 2009 Name Rec. Instr-hours, the quantity 850 amp-hours must be a. power. b. energy. c. current. d. charge. b) (4) Give 850 amp-hours in SI

  20. Energy Management Workbook for Local Governments : Workbook 1, Electrical Energy, 1981.

    SciTech Connect (OSTI)

    None

    1981-02-01T23:59:59.000Z

    Descriptions are presented for 20 major categories of energy actions providing background information needed for communities to implement energy management programs and explaining where financial and technical help may be available. Chapter 1 provides background on the energy problem, discusses Federal, state and local roles, and outlines the planning process. Chapter 2 is a list of 20 questions to help identify a range of potential actions that could become part of the energy management plan. Chapter 3 will help evaluate each of the twenty potential activities, and chapters 4 and 5 discuss implementing and monitoring the energy management plan. (MCW)

  1. ELECTRIC

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling CorpNew 1325.8.Enaineer District2, jDCX

  2. Clean Energy and the Electric System: Assessing the Many Benefits of State and Local Clean Energy Initiatives Multiple Benefits of Clean Energy Initiatives

    E-Print Network [OSTI]

    unknown authors

    Reducing energy demand and/ or increasing renewable energy generation from state and local clean energy initiatives—such as goals, standards, codes, funds and programs—can generate many benefits including: • Security, diversity, and overall reliability improvements for the electric system. ••Improved environmental quality, human health, and quality of life. ••Positive economic gains through energy costs saved, avoided medical costs, higher disposable incomes, increased labor productivity, and more jobs. This brochure is part of a series and focuses on electric system benefits. What’s Inside: • Why assess electric system benefits? • How can state and local governments estimate potential electric system benefits? • Quantitative examples of how clean energy initiatives result in direct energy benefits. • How to find more information. What are clean energy initiatives? Clean energy initiatives are policies and programs that state and local governments are using to save energy, improve air quality, reduce carbon emissions, support electric system reliability and security, and improve economic development. Examples include: Energy efficiency policies that reduce demand for energy, such as: Building codes for energy efficiency in both commercial and residential buildings; energy efficiency portfolio standards; public benefit funds for energy efficiency; and appliance efficiency standards. Energy supply policies that increase the use of renewables and clean sources, such as: Clean distributed generation and net metering interconnection standards; output-based environmental regulations; public benefit funds for clean energy supply; combined heat and power; and renewable portfolio standards. Clean energy initiatives reduce demand for fossil-fuel powered electricity and increase electricity generated with clean, renewable energy, contributing to a less polluting, more reliable and affordable electric system. Specifically, energy efficiency and/or renewable energy are resources that can: Avoid costs typically associated with conventional generation, including: Fuel, variable operation, and maintenance costs; emissions allowances; costs of emission Greenhouse gas (GHG) related policies that measure or limit emissions, such as: GHG registries, mandatory GHG reporting; CO offset requirements;

  3. Evaluation of a Current Source Active Power Filter to Reduce the DC Bus Capacitor in a Hybrid Electric Vehicle Traction Drive

    E-Print Network [OSTI]

    Tolbert, Leon M.

    system, additional heat, audible noise, mechanical stress, and vibration [1]. DC bus harmonic current- powered three-phase inverter is used to drive the traction motor. Due to the switching behavior combustion engine, electric motor, and energy storage device (for example, batteries and ultracapacitors

  4. Current collapse imaging of Schottky gate AlGaN/GaN high electron mobility transistors by electric field-induced optical second-harmonic generation measurement

    SciTech Connect (OSTI)

    Katsuno, Takashi, E-mail: e1417@mosk.tytlabs.co.jp; Ishikawa, Tsuyoshi; Ueda, Hiroyuki; Uesugi, Tsutomu [Toyota Central R and D Laboratories Inc., Nagakute, Aichi 480-1192 (Japan); Manaka, Takaaki; Iwamoto, Mitsumasa [Department of Physical Electronics, Tokyo Institute of Technology, Meguro, Tokyo 152-8552 (Japan)

    2014-06-23T23:59:59.000Z

    Two-dimensional current collapse imaging of a Schottky gate AlGaN/GaN high electron mobility transistor device was achieved by optical electric field-induced second-harmonic generation (EFISHG) measurements. EFISHG measurements can detect the electric field produced by carriers trapped in the on-state of the device, which leads to current collapse. Immediately after (e.g., 1, 100, or 800??s) the completion of drain-stress voltage (200?V) in the off-state, the second-harmonic (SH) signals appeared within 2??m from the gate edge on the drain electrode. The SH signal intensity became weak with time, which suggests that the trapped carriers are emitted from the trap sites. The SH signal location supports the well-known virtual gate model for current collapse.

  5. Abstract--Currently, there are multiple national directives that call for the development of a smarter electrical grid. This

    E-Print Network [OSTI]

    Oren, Shmuel S.

    of the electric transmission grid. The USA Energy Policy Act of 2005, Sec.1223.a.5, includes: "encourage of a smarter electrical grid. This includes, but is not limited to, the development of advanced transmission a smarter, more flexible transmission grid. Index Terms--Power system economics, power system reliability

  6. General Physics II Exam 1 -Chs. 1619 -Electric Fields, Potential, Current Feb. 14, 2011 Name Rec. Instr. Rec. Time

    E-Print Network [OSTI]

    Wysin, Gary

    styrofoam ball? a. It has a negative net charge b. It has zero net charge. c. It has positive net charge. d at finite x where the electric field is zero. c) (8) Determine the magnitude of the net electric field. Its net charge changes when then rods are placed near it. 2. (6) An excess charge of -88 pC is placed

  7. Induced Currents, Eddy Currents and

    E-Print Network [OSTI]

    Tobar, Michael

    Lecture 11 Induced Currents, Eddy Currents and Maxwell's Equations 1 Faraday Disk Dynamo F = q Eddy Currents We have learnt that changing magnetic fields can induce electric fields in conductors 108 ms-1 16 #12;In this lecture and the next Eddy Currents: We have covered Sect. 29

  8. Current-induced electrical self-oscillations across out-of-plane threshold switches based on VO{sub 2} layers integrated in crossbars geometry

    SciTech Connect (OSTI)

    Beaumont, A.; Leroy, J.; Crunteanu, A., E-mail: aurelian.crunteanu@xlim.fr [XLIM Research Institute UMR 7252, CNRS/University of Limoges, 123 avenue Albert Thomas, 87060 Limoges (France); Orlianges, J.-C. [SPCTS UMR 7513, CNRS/University of Limoges, 12 rue Atlantis, 87068 Limoges (France)

    2014-04-21T23:59:59.000Z

    Electrically activated metal-insulator transition (MIT) in vanadium dioxide (VO{sub 2}) is widely studied from both fundamental and practical points of view. It can give valuable insights on the currently controversial phase transition mechanism in this material and, at the same time, allows the development of original MIT-based electronic devices. Electrically triggered insulator-metal transitions are demonstrated in novel out-of-plane, metal-oxide-metal type devices integrating a VO{sub 2} thin film, upon applying moderate threshold voltages. It is shown that the current-voltage characteristics of such devices present clear negative differential resistance effects supporting the onset of continuous, current-driven phase oscillations across the vanadium dioxide material. The frequencies of these self-sustained oscillations are ranging from 90 to 300?kHz and they may be tuned by adjusting the injected current. A phenomenological model of the device and its command circuit is developed, and allows to extract the analytical expressions of the oscillation frequencies and to simulate the electrical oscillatory phenomena developed across the VO{sub 2} material. Such out-of-plane devices may further contribute to the general understanding of the driving mechanism in metal-insulator transition materials and devices, a prerequisite to promising applications in high speed/high frequency networks of oscillatory or resistive memories circuits.

  9. Comparison of the Radially Produced Electric-Field Shear Effects Analyzed from End-Loss Current and Central-Cell Soft X-Ray Data

    SciTech Connect (OSTI)

    Hirata, M. [Plasma Research Centre, University of Tsukuba (Japan); Cho, T. [Plasma Research Centre, University of Tsukuba (Japan); Yoshida, M. [Plasma Research Centre, University of Tsukuba (Japan); Kohagura, J. [Plasma Research Centre, University of Tsukuba (Japan); Numakura, T. [Plasma Research Centre, University of Tsukuba (Japan); Yokoyama, N. [Plasma Research Centre, University of Tsukuba (Japan); Tokioka, S. [Plasma Research Centre, University of Tsukuba (Japan); Fukai, T. [Plasma Research Centre, University of Tsukuba (Japan); Tomii, Y. [Plasma Research Centre, University of Tsukuba (Japan); Miyake, Y. [Plasma Research Centre, University of Tsukuba (Japan); Shimizu, K. [Plasma Research Centre, University of Tsukuba (Japan); Kiminami, S. [Plasma Research Centre, University of Tsukuba (Japan); Kondoh, T. [Japan Atomic Energy Research Institute (Japan); Miyoshi, S. [Plasma Research Centre, University of Tsukuba (Japan)

    2005-01-15T23:59:59.000Z

    Significant effects of sheared transverse electric fields in plasmas on both turbulent fluctuations and drift waves are experimentally demonstrated with improvement in plasma confinement for the first time in the tandem mirror GAMMA 10. Here, electron-cyclotron heatings (ECH) for ion-confining potential formation are applied in association with a significant rise in the absolute value of the central-cell potential and the resulting formation of a strong shear of electric fields of the order of 10 kV/m2 in the radial direction of the plasma column (dEr/dr). The central-cell line density increases during ECH in association with decreasing fluctuations. Various fluctuation diagnostics, in particular, the frequency analyses of end-loss ion currents and central soft x-ray brightness, show the consistent features. This encourages the usefulness of potentials and radial electric-field shear for confinement improvements.

  10. Suppression of electric and magnetic fluctuations and improvement of confinement due to current profile modification by biased electrode in Saha Institute of Nuclear Physics tokamak

    SciTech Connect (OSTI)

    Basu, Debjyoti; Pal, Rabindranath [Saha Institute of Nuclear Physics, 1/AF-Bidhannagar, Kolkata 700064 (India); Ghosh, Joydeep; Chattopadhyay, Prabal K. [Institute for Plasma Research, Bhat, Gandhinagar 382428 (India)

    2012-07-15T23:59:59.000Z

    Improvement of plasma confinement is achieved in normal q{sub a} discharges of SINP-tokamak by introducing a biased electrode inside the last closed flux surface. All the important features of high confinement mode are observed biasing the electrode negatively with respect to the vacuum vessel. Arrays of electric and magnetic probes introduced in the edge plasma region reveal suppression of electric and magnetic fluctuations over distinct frequency ranges as well as modification of the toroidal current profile due to biasing. Further analysis identifies the electrostatic fluctuations to be due to drift mode and the magnetic fluctuations may be of slow compressional Alfven waves. Both get suppressed due to current profile modification during biasing, hence leading to the improvement of plasma confinement.

  11. {open_quotes}Local texture, current flow, and superconductive transport properties of Tl1223 deposits on practical substrates{close_quotes}

    SciTech Connect (OSTI)

    Christen, D.K.; Specht, E.D.; Goyal, A. [and others

    1996-05-01T23:59:59.000Z

    Quantitative investigations of the crystal grain orientations and electrical transport properties of high temperature superconducting (HTS)TiBa{sub 2}Ca{sub 2}Cu{sub 3}O{sub 8+x} (Tl1223) deposits on polycrystalline substrates show that current flow comprises percolative networks of strongly-coupled material. Superconductive transport properties on different samples, on the same samples at different widths, and on samples with artificially-induced strong flux pinning defects confirm the nature of current flow, and suggest that these materials may be useful as a new class of HTS conductors.

  12. Determination of Electric-Field, Magnetic-Field, and Electric...

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

    Electric-Field, Magnetic-Field, and Electric-Current Distributions of Infrared Optical Antennas: A Near-Field Determination of Electric-Field, Magnetic-Field, and Electric-Current...

  13. SIMULTANEOUS ESTIMATION OF ELECTRICAL AND THERMAL PROPERTIES OF MATERIAL FROM THE TONE-BURST EDDY CURRENT THERMOGRAPHY (TBET) TIME-TEMPERATURE DATA

    SciTech Connect (OSTI)

    Biju, N.; Ganesan, N.; Krishnamurthy, C. V.; Balasubramaniam, Krishnan [Centre for Nondestructive Evaluation, Department of Mechanical Engineering, Indian Institute of Technology Madras (India)

    2010-02-22T23:59:59.000Z

    In this paper, an inversion method is proposed to determine simultaneously the electrical and thermal properties of a given isotropic material from the time-temperature data obtained from the Tone-Burst Eddy current Thermography (TBET). A multi-physics forward model for computing the surface temperature data was used in a Genetic Algorithm (GA) based inversion technique to determine the material properties such as electrical conductivity (sigma), thermal conductivity (k), density (rho), and specific heat (C{sub p}) simultaneously. Different trials were carried out initially with simulated temperature data (with and without noise). A typical case of inversion of anisotropic material properties using a 2D finite element model is also discussed.

  14. Study on reduction in electric field, charged voltage, ion current and ion density under HVDC transmission lines by parallel shield wires

    SciTech Connect (OSTI)

    Amano, Y.; Sunaga, Y.

    1989-04-01T23:59:59.000Z

    An important problem in the design and operation of HVDC transmission lines is to reduce electrical field effects such as ion flow electrification of objects, electric field, ion current and ion density at ground level in the vicinity of HVDC lines. Several models of shield wire were tested with the Shiobara HVDC test line. The models contain typical stranded wires that are generally used to reduce field effects at ground level, neutral conductors placed at lower parts of the DC line, and an ''earth corona model'' to cancel positive or negative ions intentionally by generating ions having opposite polarity to ions flowing into the wire. This report describes the experimental results of the effects of these shield wires and a method to predict shielding effects.

  15. Excitation in low-current discharges and breakdown in He at low pressures and very high electric field to gas density ratios E/N

    SciTech Connect (OSTI)

    Jelenkovic, B.M.; Phelps, A.V. [JILA, University of Colorado and National Institute of Standards and Technology, Boulder, Colorado 80309-0440 (United States); Institute of Physics, P.O. Box 75, Belgrade (Serbia and Montenegro); JILA, University of Colorado and National Institute of Standards and Technology, Boulder, Colorado 80309-0440 (United States)

    2005-01-01T23:59:59.000Z

    We investigate optical emission from low-current discharges in He at very high electric field to gas density ratios E/N between parallel plate electrodes. We also determine the electrical breakdown and the voltage-current behavior at low currents. The E/N are 300 Td to 9 kTd (1 Td=10{sup -21} V m{sup 2}) at pressures times electrode separations p{sub 0}d from 3 to 0.9 Torr cm. Absolute optical emission probabilities versus distance are determined for the 501.6 nm line (3 {sup 1}P{yields}2 {sup 1}S) and for the 587.6 nm line (3 {sup 3}D{yields}2 {sup 3}P) by reference to Boltzmann calculations at our lowest E/N and to published pressure dependent electron beam experiments. At E/N below 1 kTd, the emission follows the exponential growth of the electron density, while at above 7 kTd heavy particle excitation is evident near the cathode. Collisional transfer of excitation from the singlet to the triplet system dominates the 587.6 nm excitation. Comparisons of models with experiments show the importance of excitation and of electron production at the cathode by fast He atoms produced by charge transfer collisions of He{sup +} with He. The breakdown voltage versus p{sub 0}d is multivalued for p{sub 0}d{approx}1.5 Torr cm. At currents below 100 {mu}A and our lower E/N, the discharge voltage decreases linearly with current as expected for an increasing electron yield with ion energy and E/N at the cathode.

  16. Bond length and electric current oscillation of long linear carbon chains: Density functional theory, MpB model, and quantum spin transport studies

    SciTech Connect (OSTI)

    Oeiras, R. Y.; Silva, E. Z. da [Institute of Physics “Gleb Wataghin”, University of Campinas-Unicamp, 13083-859 Campinas, SP (Brazil)] [Institute of Physics “Gleb Wataghin”, University of Campinas-Unicamp, 13083-859 Campinas, SP (Brazil)

    2014-04-07T23:59:59.000Z

    Carbon linear atomic chains attached to graphene have experimentally been produced. Motivated by these results, we study the nature of the carbon bonds in these nanowires and how it affects their electrical properties. In the present study we investigate chains with different numbers of atoms and we observe that nanowires with odd number of atoms present a distinct behavior than the ones with even numbers. Using graphene nanoribbons as leads, we identify differences in the quantum transport of the chains with the consequence that even and odd numbered chains have low and high electrical conduction, respectively. We also noted a dependence of current with the wire size. We study this unexpected behavior using a combination of first principles calculations and simple models based on chemical bond theory. From our studies, the electrons of carbon nanowires present a quasi-free electron behavior and this explains qualitatively the high electrical conduction and the bond lengths with unexpected values for the case of odd nanowires. Our study also allows the understanding of the electric conduction dependence with the number of atoms and their parity in the chain. In the case of odd number chains a proposed ?-bond (MpB) model describes unsaturated carbons that introduce a mobile ?-bond that changes dramatically the structure and transport properties of these wires. Our results indicate that the nature of bonds plays the main role in the oscillation of quantum electrical conduction for chains with even and odd number of atoms and also that nanowires bonded to graphene nanoribbons behave as a quasi-free electron system, suggesting that this behavior is general and it could also remain if the chains are bonded to other materials.

  17. Edison Electric Institute Update

    Broader source: Energy.gov [DOE]

    Presentation—given at the Fall 2011 Federal Utility Partnership Working Group (FUPWG) meeting—discusses the Edison Electric Institute (EEI) and the current electricity landscape.

  18. Electricity Transmission, Pipelines, and National Trails. An Analysis of Current and Potential Intersections on Federal Lands in the Eastern United States, Alaska, and Hawaii

    SciTech Connect (OSTI)

    Kuiper, James A; Krummel, John R; Hlava, Kevin J; Moore, H Robert; Orr, Andrew B; Schlueter, Scott O; Sullivan, Robert G; Zvolanek, Emily A

    2014-03-25T23:59:59.000Z

    As has been noted in many reports and publications, acquiring new or expanded rights-of-way for transmission is a challenging process, because numerous land use and land ownership constraints must be overcome to develop pathways suitable for energy transmission infrastructure. In the eastern U.S., more than twenty federally protected national trails (some of which are thousands of miles long, and cross many states) pose a potential obstacle to the development of new or expanded electricity transmission capacity. However, the scope of this potential problem is not well-documented, and there is no baseline information available that could allow all stakeholders to study routing scenarios that could mitigate impacts on national trails. This report, Electricity Transmission, Pipelines, and National Trails: An Analysis of Current and Potential Intersections on Federal Lands in the Eastern United States, was prepared by the Environmental Science Division of Argonne National Laboratory (Argonne). Argonne was tasked by DOE to analyze the “footprint” of the current network of National Historic and Scenic Trails and the electricity transmission system in the 37 eastern contiguous states, Alaska, and Hawaii; assess the extent to which national trails are affected by electrical transmission; and investigate the extent to which national trails and other sensitive land use types may be affected in the near future by planned transmission lines. Pipelines are secondary to transmission lines for analysis, but are also within the analysis scope in connection with the overall directives of Section 368 of the Energy Policy Act of 2005, and because of the potential for electrical transmission lines being collocated with pipelines. Based on Platts electrical transmission line data, a total of 101 existing intersections with national trails on federal land were found, and 20 proposed intersections. Transmission lines and pipelines are proposed in Alaska; however there are no locations that intersect national trails. Source data did not indicate any planned transmission lines or pipelines in Hawaii. A map atlas provides more detailed mapping of the topics investigated in this study, and the accompanying GIS database provides the baseline information for further investigating locations of interest. In many cases the locations of proposed transmission lines are not accurately mapped (or a specific route may not yet be determined), and accordingly the specific crossing locations are speculative. However since both national trails and electrical transmission lines are long linear systems, the characteristics of the crossings reported in this study are expected to be similar to both observed characteristics of the existing infrastructure provided in this report, and of the new infrastructure if these proposed projects are built. More focused study of these siting challenges is expected to mitigate some of potential impacts by choosing routes that minimize or eliminate them. The current study primarily addresses a set of screening-level characterizations that provide insights into how the National Trail System may influence the siting of energy transport facilities in the states identified under Section 368(b) of the Energy Policy Act of 2005. As such, it initializes gathering and beginning analysis of the primary environmental and energy data, and maps the contextual relationships between an important national environmental asset and how this asset intersects with energy planning activities. Thus the current study sets the stage for more in-depth analyses and data development activities that begin to solve key transmission siting constraints. Our recommendations for future work incorporate two major areas: (1) database development and analytics and (2) modeling and scenario analysis for energy planning. These recommendations provide a path forward to address key issues originally developed under the Energy Policy Act of 2005 that are now being carried forward under the President’s Climate Action Plan.

  19. Analysis of patuxent estuarine currents in the vicinity of the Chalk Point Steam Electric Station. Final report

    SciTech Connect (OSTI)

    Polgar, T.T.; Ross, R.N.; Lacey, G.K.

    1980-03-01T23:59:59.000Z

    The tidal and nontidal flows in the Patuxent River, between Trueman Point and Benedict Bridge, are described, using time series analysis methods on continuously recording current meter data. The measurements were made in July and August 1978; the entire study area falls within the mesohaline region of the estuary. The results of the analyses indicate that currents in the study area are driven predominantly by semi-diurnal tidal forcing and by wind patterns. Freshwater input into the estuary accounts for the maintenance of vertical density gradients and shears, but it plays a relatively minor role in the estuarine transport processes.

  20. Abstract-In this study, imaging of electrical current density in conducting objects, which contain nuclear magnetic resonance

    E-Print Network [OSTI]

    Eyübođlu, Murat

    nuclear magnetic resonance (NMR) active nuclei is planned using 0.15T Magnetic Resonance Imaging (MRI at each cycle within the object. The applied current pulse creates a measurable magnetic flux density. The component of magnetic flux density parallel to the main magnetic field accumulates an additional phase

  1. Electrical stator

    DOE Patents [OSTI]

    Fanning, Alan W. (San Jose, CA); Olich, Eugene E. (Aptos, CA)

    1994-01-01T23:59:59.000Z

    An electrical stator of an electromagnetic pump includes first and second spaced apart coils each having input and output terminals for carrying electrical current. An elongate electrical connector extends between the first and second coils and has first and second opposite ends. The connector ends include respective slots receiving therein respective ones of the coil terminals to define respective first and second joints. Each of the joints includes a braze filler fixedly joining the connector ends to the respective coil terminals for carrying electrical current therethrough.

  2. Verification of electrical spin injection into InGaAs two-dimensional electron gas from CoFe electrode by four-terminal non-local geometry

    SciTech Connect (OSTI)

    Hidaka, S.; Kondo, T.; Akabori, M.; Yamada, S. [Center for Nano Materials and Technology (CNMT), Japan Advanced Institute of Science and Technology (JAIST), Asahidai, Nomi, Ishikawa 923-1292 (Japan)

    2013-12-04T23:59:59.000Z

    We performed electrical spin injection into In{sub 0.75}Ga{sub 0.25}As two-dimensional electron gases from Co{sub 0.8}Fe{sub 0.2} electrodes by four-terminal non-local spin-valve (NLSV) measurement. We observed clear SV signals in NL resistance at 1.5 K. From the electrode spacing dependence of the signals, we estimated spin diffusion length and spin polarization to be ?5.1 ?m and ?5.7 %, respectively. These are larger than those reported in similar systems.

  3. Local changes of work function near rough features on Cu surfaces operated under high external electric field

    SciTech Connect (OSTI)

    Djurabekova, Flyura, E-mail: flyura.djurabekova@helsinki.fi; Ruzibaev, Avaz; Parviainen, Stefan [Helsinki Institute of Physics and Department of Physics, University of Helsinki, P.O. Box 43, FI-00014 Helsinki (Finland); Holmström, Eero [Department of Physics, University of Helsinki, P.O. Box 64, FIN-00014 Helsinki (Finland); Department of Earth Sciences, Faculty of Maths and Physical Sciences, UCL Earth Sciences, Gower Street, London WC1E 6BT (United Kingdom); Hakala, Mikko [Department of Physics, University of Helsinki, P.O. Box 64, FIN-00014 Helsinki (Finland)

    2013-12-28T23:59:59.000Z

    Metal surfaces operated under high electric fields produce sparks even if they are held in ultra high vacuum. In spite of extensive research on the topic of vacuum arcs, the mystery of vacuum arc origin still remains unresolved. The indications that the sparking rates depend on the material motivate the research on surface response to extremely high external electric fields. In this work by means of density-functional theory calculations we analyze the redistribution of electron density on (100) Cu surfaces due to self-adatoms and in presence of high electric fields from ?1?V/nm up to ?2?V/nm (?1 to ?2 GV/m, respectively). We also calculate the partial charge induced by the external field on a single adatom and a cluster of two adatoms in order to obtain reliable information on charge redistribution on surface atoms, which can serve as a benchmarking quantity for the assessment of the electric field effects on metal surfaces by means of molecular dynamics simulations. Furthermore, we investigate the modifications of work function around rough surface features, such as step edges and self-adatoms.

  4. Liquid soap film generates electricity

    E-Print Network [OSTI]

    Ahmad Amjadi; Sadegh Feiz; Reza Montazeri Namin

    2014-04-24T23:59:59.000Z

    We have observed that a rotating liquid soap film generates electricity when placed between two non-contact electrodes with a sufficiently large potential difference. In our experiments suspended liquid film (water + soap film) is formed on the surface of a circular frame, which is forced to rotate in the $x-y$ horizontal plane by a motor. This system is located at the center of two capacitor-like vertical plates to apply an external electric voltage difference in the $x-$direction. The produced electric current is collected from the liquid film using two conducting electrodes that are separated in the $y-$direction. We previously reported that a liquid film in an external electric field rotates when an electric current passes through it, naming it the liquid film motor (LFM). In this paper we report a novel technique, in which a similar device can be used as an electric generator, converting the rotating mechanical energy to electrical energy. The liquid film electric generator (LFEG) is in stark contrast to the LFM, both of which could be designed similarly in very small scales like micro scales with different applications. Although the device is comparable to commercial electric motors or electric generators, there is a significant difference in their working principles. Usually in an electric motor or generator the magnetic field causes the driving force, while in a LFM or LFEG the Coulomb force is the driving force. This fact is also interesting from the Bio-science point of view and brings a similarity to bio motors. Here we have investigated the electrical characteristics of such a generator for the first time experimentally and modelled the phenomenon with electroconvection governing equations. A numerical simulation is performed using the local approximation for the charge-potential relation and results are in qualitative agreement with experiments.

  5. State and Local Clean Energy Policy Primer: Getting from Here to Clean Electricity with Policy (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-04-01T23:59:59.000Z

    This fact sheet proposes a framework for how states and localities can build policy portfolios by first setting the stage for clean energy in the market with low cost policies, and then growing the market with successive policies until the need for financial incentives can be reduced and eventually eliminated.

  6. Furnace Blower Electricity: National and Regional Savings Potential

    E-Print Network [OSTI]

    Franco, Victor; Florida Solar Energy Center

    2008-01-01T23:59:59.000Z

    Currently, total electricity consumption of furnaces isthe total furnace electricity consumption and are primarilyto calculate the electricity consumption during cooling

  7. Structures, electrical properties, and leakage current behaviors of un-doped and Mn-doped lead-free ferroelectric K{sub 0.5}Na{sub 0.5}NbO{sub 3} films

    SciTech Connect (OSTI)

    Wang, Lingyan, E-mail: l.y.wang@mail.xjtu.edu.cn, E-mail: wren@mail.xjtu.edu.cn; Ren, Wei, E-mail: l.y.wang@mail.xjtu.edu.cn, E-mail: wren@mail.xjtu.edu.cn; Shi, Peng; Wu, Xiaoqing [Electronic Material Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Xi'an Jiaotong University, Xi'an 710049 (China)

    2014-01-21T23:59:59.000Z

    Lead-free ferroelectric un-doped and doped K{sub 0.5}Na{sub 0.5}NbO{sub 3} (KNN) films with different amounts of manganese (Mn) were prepared by a chemical solution deposition method. The thicknesses of all films are about 1.6??m. Their phase, microstructure, leakage current behavior, and electrical properties were investigated. With increasing the amounts of Mn, the crystallinity became worse. Fortunately, the electrical properties were improved due to the decreased leakage current density after Mn-doping. The study on leakage behaviors shows that the dominant conduction mechanism at low electric field in the un-doped KNN film is ohmic mode and that at high electric field is space-charge-limited and Pool-Frenkel emission. After Mn doping, the dominant conduction mechanism at high electric field of KNN films changed single space-charge-limited. However, the introduction of higher amount of Mn into the KNN film would lead to a changed conduction mechanism from space-charge-limited to ohmic mode. Consequently, there exists an optimal amount of Mn doping of 2.0?mol.?%. The 2.0?mol.?% Mn doped KNN film shows the lowest leakage current density and the best electrical properties. With the secondary ion mass spectroscopies and x-ray photoelectron spectroscopy analyses, the homogeneous distribution in the KNN films and entrance of Mn element in the lattice of KNN perovskite structure were also confirmed.

  8. El Paso Electric- SCORE and Commercial Solutions

    Broader source: Energy.gov [DOE]

    El Paso Electric offers a targeted incentive program for public institutions, local governments and higher education.

  9. ELECTRICAL ENERGY SYSTEMS ELECTRICAL ENERGY SYSTEMS

    E-Print Network [OSTI]

    Strathclyde, University of

    countries to install solar energy technologies into local schools and hospitals. In its Energy PolicyMEng ELECTRICAL ENERGY SYSTEMS #12;MEng ELECTRICAL ENERGY SYSTEMS Electrical energy is vital aspects of modern life. One of the biggest challenges facing society is the need for reliable energy

  10. IEEE TRANSACTIONS ON MAGNETICS, VOL. 44, NO. 8, AUGUST 2008 2021 Modeling of Eddy-Current Loss of Electrical Machines and Transformers

    E-Print Network [OSTI]

    Mi, Chunting "Chris"

    of Electrical Machines and Transformers Operated by Pulsewidth-Modulated Inverters Ruifang Liu1;2, Chris

  11. Attention CEPS Students: General Dynamics-Electric Boat (EB) is currently looking to hire over 150 Engineers (December 2012 and May

    E-Print Network [OSTI]

    Pohl, Karsten

    positions, however, you must submit your information on-line. We hire a BS in: Civil Engineering, Electrical Engineering) will come up. The Electric Boat employment website has valuable information about the company@gdeb.com D435, Propulsor Engineering Electric Boat Corporation UNH Mechanical Engineering, Class of '07 #12;

  12. The self-consistent parallel electric field due to electrostatic ion-cyclotron turbulence in downward auroral-current regions of the Earth's magnetosphere. IV

    SciTech Connect (OSTI)

    Jasperse, John R.; Basu, Bamandas [Air Force Research Laboratory, Space Vehicles Directorate, Hanscom AFB, Massachusetts 01731 (United States); Lund, Eric J. [Space Science Center, University of New Hampshire, Durham, New Hampshire 03824 (United States); Grossbard, Neil [Institute for Scientific Research, Boston College, Chestnut Hill, Massachusetts 02467 (United States)

    2010-06-15T23:59:59.000Z

    The physical processes that determine the self-consistent electric field (E{sub ||}) parallel to the magnetic field have been an unresolved problem in magnetospheric physics for over 40 years. Recently, a new multimoment fluid theory was developed for inhomogeneous, nonuniformly magnetized plasma in the guiding-center and gyrotropic approximation that includes the effect of electrostatic, turbulent, wave-particle interactions (see Jasperse et al. [Phys. Plasmas 13, 072903 (2006); ibid.13, 112902 (2006)]). In the present paper and its companion paper [Jasperse et al., Phys. Plasmas 17, 062903 (2010)], which are intended as sequels to the earlier work, a fundamental model for downward, magnetic field-aligned (Birkeland) currents for quasisteady conditions is presented. The model includes the production of electrostatic ion-cyclotron turbulence in the long-range potential region by an electron, bump-on-tail-driven ion-cyclotron instability. Anomalous momentum transfer (anomalous resistivity) by itself is found to produce a very small contribution to E{sub ||}; however, the presence of electrostatic, ion-cyclotron turbulence has a very large effect on the altitude dependence of the entire quasisteady solution. Anomalous energy transfer (anomalous heating and cooling) modifies the density, drift, and temperature altitude profiles and hence the generalized parallel-pressure gradients and mirror forces in the electron and ion momentum-balance equations. As a result, |E{sub ||}| is enhanced by nearly a factor of 40 compared to its value when turbulence is absent. The space-averaged potential increase associated with the strong double layer at the bottom of the downward-current sheet is estimated using the FAST satellite data and the multimoment fluid theory.

  13. LABORATORY VI ELECTRICITY FROM MAGNETISM

    E-Print Network [OSTI]

    Minnesota, University of

    LABORATORY VI ELECTRICITY FROM MAGNETISM Lab VI - 1 In the previous problems you explored the magnetic field and its effect on moving charges. You also saw how electric currents could create magnetic can give rise to electric currents. This is the effect that allows the generation of electricity

  14. Electricity | Department of Energy

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

    the current electric grid into the next-generation grid. PE enable utilities to deliver power to their customers effectively while providing increased reliability, security, and...

  15. Webinar: Hydrogen Fueling for Current and Anticipated Fuel Cell...

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

    Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles (FCEVs) Webinar: Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles (FCEVs) Below is...

  16. If current capacity were to be expanded so that all of the non-recycled municipal solid waste that is currently sent to U.S. landfills each year could instead be converted to energy, we could generate enough electricity

    E-Print Network [OSTI]

    If current capacity were to be expanded so that all of the non-recycled municipal solid waste at Columbia University assessed the energy value of municipal solid waste that is currently sent to U so that we could convert our non-recycled waste to alternative energy instead of landfilling it, we

  17. General Physics II Exam 1 -Chs. 16,17,18 -Electric Fields, Potential, Current Feb. 11, 2013 Name Rec. Instr. Rec. Time

    E-Print Network [OSTI]

    Wysin, Gary

    the best answer. Questions about charges. 1. (2) T F Good conductors are materials that have a lot of free energy a. decreases. b. increases. c. does not change. Questions about electric fields. 9. (2) T F- leased from rest at point A and accelerates to point B by moving through the equipotentials shown

  18. Geothermal Energy: Current abstracts

    SciTech Connect (OSTI)

    Ringe, A.C. (ed.)

    1988-02-01T23:59:59.000Z

    This bulletin announces the current worldwide information available on the technologies required for economic recovery of geothermal energy and its use as direct heat or for electric power production. (ACR)

  19. Local Government Revenue Bonds (Montana)

    Broader source: Energy.gov [DOE]

    Limited obligation local government bonds ("special revenue bonds") may be issued for qualified electric energy generation facilities, including those powered by renewables. These bonds generally...

  20. Random Walks and Electrical Networks Electrical Network

    E-Print Network [OSTI]

    Jonathon Peterson

    2008-01-30T23:59:59.000Z

    Feb 4, 2008 ... Random Walks and Electrical Networks. Hitting Probabilities and Voltage. Voltage. Connect a 1V battery to nodes a and b. ix,y is the current ...

  1. 6. Electric current is delivered to a television set at a specified voltage. The power delivered to the television is the energy per charge (voltage) multiplied by the charge per time (current) as

    E-Print Network [OSTI]

    Kioussis, Nicholas

    .1 10 m 4 4 2.1 A 6.9 m L L D V V IR I I A I LD - - × = = = = = = × 29. An electric heater - - = - - = - - = 3. (b) Now apply Ohm's Law to 1R to find 1I : 1 12.0 V 0.55 A 22 I= = 4. Repeat step 3 to find 2I : 2 12.0 V 0.18 A 67 I= = 5. Repeat step 3 to find 3I : 3 12.0 V 0.16 A 77 I= = 6. (c) Since 1 ,R I

  2. Effect of Applied Toroidal Electric Field on the Growth/Decay of Plateau-Phase Runaway Electron Currents in DIII-D

    SciTech Connect (OSTI)

    Hollmann, E. M. [University of California, San Diego; Parks, P. B. [General Atomics; Humphrey, D. A. [General Atomics, San Diego; Brooks, N. H. [General Atomics, San Diego; Commaux, Nicolas JC [ORNL; Eidietis, N. W. [General Atomics, San Diego; Evans, T.E. [General Atomics, San Diego; James, A. N. [University of California, San Diego; Jernigan, T. C. [Oak Ridge National Laboratory (ORNL); Jernigan, Thomas C [ORNL; Munoz, J. [Oak Ridge Associated Universities (ORAU); Strait, E. J. [General Atomics, San Diego; Tsui, C. [University of Toronto, Toronto, ON, Canada; Wesley, J. C. [General Atomics; Yu, J.H. [University of California, San Diego

    2011-01-01T23:59:59.000Z

    Large relativistic runaway electron currents (0.1-0.5 MA) persisting for similar to 100 ms are created in the DIII-D tokamak during rapid discharge shut down caused by argon pellet injection. Slow upward and downward ramps in runaway currents were found in response to externally applied loop voltages. Comparison between the observed current growth/decay rate and the rate expected from the knock-on avalanche mechanism suggests that classical collisional dissipation of runaways alone cannot account for the measured growth/damping rates. It appears that a fairly constant anomalous dissipation rate of order 10 s(-1) exists, possibly stemming from radial transport or direct orbit losses to the vessel walls, although the possibility of an apparent loss due to current profile shrinking cannot be ruled out at present.

  3. Evaluation of evolving residential electricity tariffs

    E-Print Network [OSTI]

    Lai, Judy

    2011-01-01T23:59:59.000Z

    residential electricity tariffs Judy Lai, Nicholas DeForest,residential electricity tariffs Judy Lai – Senior Researchfrom the current 5-tiered tariff to time variable pricing,

  4. buffer Layer Growth, the Thickness Dependence of Jc in Coated Conductors, Local Identification of Current Limiting Mechanisms and Participation in the Wire Development Group

    SciTech Connect (OSTI)

    Larbalestier, David; Hellstron, Eric; Abraimov, Dmytro

    2011-12-17T23:59:59.000Z

    The primary thrusts of our work were to provide critical understanding of how best to enhance the current-carrying capacity of coated conductors. These include the deconstruction of Jc as a function of fim thickness, the growth of in situ films incorporating strong pinning centers and the use of a suite of position-sensitive tools that enable location and analysis of key areas where current-limiting occurs.

  5. LABORATORY VI ELECTRICITY FROM MAGNETISM

    E-Print Network [OSTI]

    Minnesota, University of

    LABORATORY VI ELECTRICITY FROM MAGNETISM Lab VI - 1 In the previous problems you explored by electric currents. This lab will carry that investigation one step further, determining how changing magnetic fields can give rise to electric currents. This is the effect that allows the generation

  6. High temperature superconducting fault current limiter

    DOE Patents [OSTI]

    Hull, J.R.

    1997-02-04T23:59:59.000Z

    A fault current limiter for an electrical circuit is disclosed. The fault current limiter includes a high temperature superconductor in the electrical circuit. The high temperature superconductor is cooled below its critical temperature to maintain the superconducting electrical properties during operation as the fault current limiter. 15 figs.

  7. High temperature superconducting fault current limiter

    DOE Patents [OSTI]

    Hull, John R. (Hinsdale, IL)

    1997-01-01T23:59:59.000Z

    A fault current limiter (10) for an electrical circuit (14). The fault current limiter (10) includes a high temperature superconductor (12) in the electrical circuit (14). The high temperature superconductor (12) is cooled below its critical temperature to maintain the superconducting electrical properties during operation as the fault current limiter (10).

  8. Photovoltaic (PV)energy conversion is a rapidly growing technology for converting solar energy into electricity. The current production is over 20

    E-Print Network [OSTI]

    Tsymbal, Evgeny Y.

    Photovoltaic (PV)energy conversion is a rapidly growing technology for converting solar energy to about $1.50 per watt, from over $100/W in the 1970s. The current generation of technology is mainly polymers, is making rapid strides towards becoming the low cost material of choice for PV energy conversion

  9. Current induced annealing and electrical characterization of single layer graphene grown by chemical vapor deposition for future interconnects in VLSI circuits

    SciTech Connect (OSTI)

    Prasad, Neetu, E-mail: neetu.prasad@south.du.ac.in, E-mail: neetu23686@gmail.com; Kumari, Anita; Bhatnagar, P. K.; Mathur, P. C. [Department of Electronic Science, University of Delhi South Campus, Benito Juarez Road, New Delhi 110021 (India); Bhatia, C. S. [Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117576 (Singapore)

    2014-09-15T23:59:59.000Z

    Single layer graphene (SLG) grown by chemical vapor deposition (CVD) has been investigated for its prospective application as horizontal interconnects in very large scale integrated circuits. However, the major bottleneck for its successful application is its degraded electronic transport properties due to the resist residual trapped in the grain boundaries and on the surface of the polycrystalline CVD graphene during multi-step lithographic processes, leading to increase in its sheet resistance up to 5 M?/sq. To overcome this problem, current induced annealing has been employed, which helps to bring down the sheet resistance to 10?k?/sq (of the order of its initial value). Moreover, the maximum current density of ?1.2?×?10{sup 7?}A/cm{sup 2} has been obtained for SLG (1?×?2.5??m{sup 2}) on SiO{sub 2}/Si substrate, which is about an order higher than that of conventionally used copper interconnects.

  10. Current balancing for battery strings

    DOE Patents [OSTI]

    Galloway, James H. (New Baltimore, MI)

    1985-01-01T23:59:59.000Z

    A battery plant is described which features magnetic circuit means for balancing the electrical current flow through a pluraliircuitbattery strings which are connected electrically in parallel. The magnetic circuit means is associated with the battery strings such that the conductors carrying the electrical current flow through each of the battery strings pass through the magnetic circuit means in directions which cause the electromagnetic fields of at least one predetermined pair of the conductors to oppose each other. In an alternative embodiment, a low voltage converter is associated with each of the battery strings for balancing the electrical current flow through the battery strings.

  11. Thermoacoustic magnetohydrodynamic electrical generator

    DOE Patents [OSTI]

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

    1984-11-16T23:59:59.000Z

    A thermoacoustic magnetohydrodynamic electrical generator includes an intrinsically irreversible thermoacoustic heat engine coupled to a magnetohydrodynamic electrical generator. The heat engine includes an electrically conductive liquid metal as the working fluid and includes two heat exchange and thermoacoustic structure assemblies which drive the liquid in a push-pull arrangement to cause the liquid metal to oscillate at a resonant acoustic frequency on the order of 1000 Hz. The engine is positioned in the field of a magnet and is oriented such that the liquid metal oscillates in a direction orthogonal to the field of the magnet, whereby an alternating electrical potential is generated in the liquid metal. Low-loss, low-inductance electrical conductors electrically connected to opposite sides of the liquid metal conduct an output signal to a transformer adapted to convert the low-voltage, high-current output signal to a more usable higher voltage, lower current signal.

  12. Thermoacoustic magnetohydrodynamic electrical generator

    DOE Patents [OSTI]

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

    1986-01-01T23:59:59.000Z

    A thermoacoustic magnetohydrodynamic electrical generator includes an intrinsically irreversible thermoacoustic heat engine coupled to a magnetohydrodynamic electrical generator. The heat engine includes an electrically conductive liquid metal as the working fluid and includes two heat exchange and thermoacoustic structure assemblies which drive the liquid in a push-pull arrangement to cause the liquid metal to oscillate at a resonant acoustic frequency on the order of 1,000 Hz. The engine is positioned in the field of a magnet and is oriented such that the liquid metal oscillates in a direction orthogonal to the field of the magnet, whereby an alternating electrical potential is generated in the liquid metal. Low-loss, low-inductance electrical conductors electrically connected to opposite sides of the liquid metal conduct an output signal to a transformer adapted to convert the low-voltage, high-current output signal to a more usable higher voltage, lower current signal.

  13. Topological Current in Fractional Chern Insulators

    E-Print Network [OSTI]

    Koma, Tohru

    2015-01-01T23:59:59.000Z

    We consider interacting fermions in a magnetic field on a two-dimensional lattice with the periodic boundary conditions. In order to measure the Hall current, we apply an electric potential with a compact support. Then, due to the Lorentz force, the Hall current appears along the equipotential line. Introducing a local current operator at the edge of the potential, we derive the Hall conductance as a linear response coefficient. For a wide class of the models, we prove that if there exists a spectral gap above the degenerate ground state, then the Hall conductance of the ground state is fractionally quantized without averaging over the fluxes. This is an extension of the topological argument for the integrally quantized Hall conductance in noninteracting fermion systems on lattices.

  14. Topological Current in Fractional Chern Insulators

    E-Print Network [OSTI]

    Tohru Koma

    2015-04-06T23:59:59.000Z

    We consider interacting fermions in a magnetic field on a two-dimensional lattice with the periodic boundary conditions. In order to measure the Hall current, we apply an electric potential with a compact support. Then, due to the Lorentz force, the Hall current appears along the equipotential line. Introducing a local current operator at the edge of the potential, we derive the Hall conductance as a linear response coefficient. For a wide class of the models, we prove that if there exists a spectral gap above the degenerate ground state, then the Hall conductance of the ground state is fractionally quantized without averaging over the fluxes. This is an extension of the topological argument for the integrally quantized Hall conductance in noninteracting fermion systems on lattices.

  15. State and Local Clean Energy Policy Primer: Getting from Here to Clean Electricity with Policy (Fact Sheet), NREL (National Renewable Energy Laboratory)

    Office of Energy Efficiency and Renewable Energy (EERE)

    This fact sheet proposes a framework for how states and localities can build policy portfolios by first setting the stage for clean energy in the market with low cost policies, and then growing the market with successive policies until the need for financial incentives can be reduced and eventually eliminated.

  16. Electrical Engineer- OPEN CONTINUOUS ANNOUNCEMENT

    Broader source: Energy.gov [DOE]

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

  17. Development of a Novel Efficient Solid-Oxide Hybrid for Co-generation of Hydrogen and Electricity Using Nearby Resources for Local Application

    SciTech Connect (OSTI)

    Tao, Greg, G.; Virkar, Anil, V.; Bandopadhyay, Sukumar; Thangamani, Nithyanantham; Anderson, Harlan, U.; Brow, Richard, K.

    2009-06-30T23:59:59.000Z

    Developing safe, reliable, cost-effective, and efficient hydrogen-electricity co-generation systems is an important step in the quest for national energy security and minimized reliance on foreign oil. This project aimed to, through materials research, develop a cost-effective advanced technology cogenerating hydrogen and electricity directly from distributed natural gas and/or coal-derived fuels. This advanced technology was built upon a novel hybrid module composed of solid-oxide fuel-assisted electrolysis cells (SOFECs) and solid-oxide fuel cells (SOFCs), both of which were in planar, anode-supported designs. A SOFEC is an electrochemical device, in which an oxidizable fuel and steam are fed to the anode and cathode, respectively. Steam on the cathode is split into oxygen ions that are transported through an oxygen ion-conducting electrolyte (i.e. YSZ) to oxidize the anode fuel. The dissociated hydrogen and residual steam are exhausted from the SOFEC cathode and then separated by condensation of the steam to produce pure hydrogen. The rationale was that in such an approach fuel provides a chemical potential replacing the external power conventionally used to drive electrolysis cells (i.e. solid oxide electrolysis cells). A SOFC is similar to the SOFEC by replacing cathode steam with air for power generation. To fulfill the cogeneration objective, a hybrid module comprising reversible SOFEC stacks and SOFC stacks was designed that planar SOFECs and SOFCs were manifolded in such a way that the anodes of both the SOFCs and the SOFECs were fed the same fuel, (i.e. natural gas or coal-derived fuel). Hydrogen was produced by SOFECs and electricity was generated by SOFCs within the same hybrid system. A stand-alone 5 kW system comprising three SOFEC-SOFC hybrid modules and three dedicated SOFC stacks, balance-of-plant components (including a tailgas-fired steam generator and tailgas-fired process heaters), and electronic controls was designed, though an overall integrated system assembly was not completed because of limited resources. An inexpensive metallic interconnects fabrication process was developed in-house. BOP components were fabricated and evaluated under the forecasted operating conditions. Proof-of-concept demonstration of cogenerating hydrogen and electricity was performed, and demonstrated SOFEC operational stability over 360 hours with no significant degradation. Cost analysis was performed for providing an economic assessment of the cost of hydrogen production using the targeted hybrid technology, and for guiding future research and development.

  18. Current CO-OP Open Positions | Argonne National Laboratory

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

    Current CO-OP Open Positions Position 1: Electrical Engineer Student The Electronics Group of the High Energy Physics Division seeks two Electrical Engineering undergraduate...

  19. Ionospheric currents correlated with geomagnetic induced currents; Freja magnetic field measurements and the sunburst monitor system

    SciTech Connect (OSTI)

    Zanetti, L.J.; Potemra, T.A.; Anderson, B.J.; Erlandson, R.E.; Holland, D.B. [Johns Hopkins Univ., Laurel, MD (United States)] [Johns Hopkins Univ., Laurel, MD (United States); Acuna, M.H. [NASA/Goddard Space Flight Center, Greenbelt, MD (United States)] [NASA/Goddard Space Flight Center, Greenbelt, MD (United States); Kappenman, J. [Minnesota Power, Duluth, MN (United States)] [Minnesota Power, Duluth, MN (United States); Lesher, R.; Feero, B. [Electric Research and Management, Inc., State College, PA (United States)] [Electric Research and Management, Inc., State College, PA (United States)

    1994-08-15T23:59:59.000Z

    Temporal and spatial fluctuations of large-scale electric currents totaling millions of amperes in the ionosphere have long been known to induce current and voltage in the Earth`s surface and on large manmade conductive structures. A strong, persistent solar wind can interact with the geomagnetic environment and produce auroral zone currents at mid latitudes. Presented here is a specific correlation of ionospheric auroral currents inferred from magnetic field measurements from the Swedish Freja satellite and induced current in the electric power distribution system on the east coast of the United States, in particular the Chalk Point, Maryland, transformer station. The event discussed here registered a Kp level of 6 to 8 and occurred on April 4-5, 1993. An important aspect is that information from both of these space- and ground-based monitoring systems is available automatically and in real time. In addition, satellite data from earlier local times, e.g., data monitored from European ground stations, can give precursor information of later North American geomagnetic activity. 24 refs., 2 figs.

  20. Micromachined electrical cauterizer

    DOE Patents [OSTI]

    Lee, A.P.; Krulevitch, P.A.; Northrup, M.A.

    1999-08-31T23:59:59.000Z

    A micromachined electrical cauterizer is disclosed. Microstructures are combined with microelectrodes for highly localized electro cauterization. Using boron etch stops and surface micromachining, microneedles with very smooth surfaces are made. Micromachining also allows for precision placement of electrodes by photolithography with micron sized gaps to allow for concentrated electric fields. A microcauterizer is fabricated by bulk etching silicon to form knife edges, then parallelly placed microelectrodes with gaps as small as 5 {mu}m are patterned and aligned adjacent the knife edges to provide homeostasis while cutting tissue. While most of the microelectrode lines are electrically insulated from the atmosphere by depositing and patterning silicon dioxide on the electric feedthrough portions, a window is opened in the silicon dioxide to expose the parallel microelectrode portion. This helps reduce power loss and assist in focusing the power locally for more efficient and safer procedures. 7 figs.

  1. Micromachined electrical cauterizer

    DOE Patents [OSTI]

    Lee, Abraham P. (Walnut Creek, CA); Krulevitch, Peter A. (Pleasanton, CA); Northrup, M. Allen (Berkeley, CA)

    1999-01-01T23:59:59.000Z

    A micromachined electrical cauterizer. Microstructures are combined with microelectrodes for highly localized electro cauterization. Using boron etch stops and surface micromachining, microneedles with very smooth surfaces are made. Micromachining also allows for precision placement of electrodes by photolithography with micron sized gaps to allow for concentrated electric fields. A microcauterizer is fabricated by bulk etching silicon to form knife edges, then parallelly placed microelectrodes with gaps as small as 5 .mu.m are patterned and aligned adjacent the knife edges to provide homeostasis while cutting tissue. While most of the microelectrode lines are electrically insulated from the atmosphere by depositing and patterning silicon dioxide on the electric feedthrough portions, a window is opened in the silicon dioxide to expose the parallel microelectrode portion. This helps reduce power loss and assist in focusing the power locally for more efficient and safer procedures.

  2. AVTA: 2010 Electric Vehicles International Neighborhood Electric...

    Energy Savers [EERE]

    10 Electric Vehicles International Neighborhood Electric Vehicle Testing Results AVTA: 2010 Electric Vehicles International Neighborhood Electric Vehicle Testing Results The...

  3. Anomalous - viscosity current drive

    DOE Patents [OSTI]

    Stix, Thomas H. (Princeton, NJ); Ono, Masayuki (Princeton Junction, NJ)

    1988-01-01T23:59:59.000Z

    An apparatus and method for maintaining a steady-state current in a toroidal magnetically confined plasma. An electric current is generated in an edge region at or near the outermost good magnetic surface of the toroidal plasma. The edge current is generated in a direction parallel to the flow of current in the main plasma and such that its current density is greater than the average density of the main plasma current. The current flow in the edge region is maintained in a direction parallel to the main current for a period of one or two of its characteristic decay times. Current from the edge region will penetrate radially into the plasma and augment the main plasma current through the mechanism of anomalous viscosity. In another aspect of the invention, current flow driven between a cathode and an anode is used to establish a start-up plasma current. The plasma-current channel is magnetically detached from the electrodes, leaving a plasma magnetically insulated from contact with any material obstructions including the cathode and anode.

  4. Optimal Design of Electrical Machines: Mathematical Programming ...

    E-Print Network [OSTI]

    2012-06-06T23:59:59.000Z

    is to investigate the efficiency and reliability of standard local optimization. 2 ...... Electrical and Electronic Engeneering, 22(4), 2003. [2] E. Fitan, F. Messine, and ...

  5. Roseville Electric- Residential New Construction Rebate Program

    Broader source: Energy.gov [DOE]

    Roseville Electric provides financial incentives to encourage local builders to construct energy efficient homes which incorporate solar resources. Participating builders can choose to build...

  6. Current Courses

    E-Print Network [OSTI]

    PHYS 630, Advanced Theory Of Electricity And Magnetism, Denes Molnar. PHYS 661, Quantum Mechanics II, Sherwin T. Love. PHYS 663, Quantum Field ...

  7. Electrical system for a motor vehicle

    DOE Patents [OSTI]

    Tamor, Michael Alan (Toledo, OH)

    1999-01-01T23:59:59.000Z

    In one embodiment of the present invention, an electrical system for a motor vehicle comprises a capacitor, an engine cranking motor coupled to receive motive power from the capacitor, a storage battery and an electrical generator having an electrical power output, the output coupled to provide electrical energy to the capacitor and to the storage battery. The electrical system also includes a resistor which limits current flow from the battery to the engine cranking motor. The electrical system further includes a diode which allows current flow through the diode from the generator to the battery but which blocks current flow through the diode from the battery to the cranking motor.

  8. Electrical system for a motor vehicle

    DOE Patents [OSTI]

    Tamor, M.A.

    1999-07-20T23:59:59.000Z

    In one embodiment of the present invention, an electrical system for a motor vehicle comprises a capacitor, an engine cranking motor coupled to receive motive power from the capacitor, a storage battery and an electrical generator having an electrical power output, the output coupled to provide electrical energy to the capacitor and to the storage battery. The electrical system also includes a resistor which limits current flow from the battery to the engine cranking motor. The electrical system further includes a diode which allows current flow through the diode from the generator to the battery but which blocks current flow through the diode from the battery to the cranking motor. 2 figs.

  9. Optimization of Current Carrying Multicables

    E-Print Network [OSTI]

    Kraft, Hanspeter

    of electric devices in modern cars grows continuously whereas available space remains the same or even reduces. Especially in hybrid and electric cars, many components have to be supplied by high currents. To save bundles contribute to hotspot generation and overheating of essential car elements, especially

  10. Electricity Reliability

    E-Print Network [OSTI]

    electric power equipment with more energy efficiency and higher capacity than today's systems of modernizing the electric grid to meet the nations's need for reliable, electric power, enhancing security continues to increase within the electricity infrastructure. DOE is conducting research, development

  11. Current Status of Concentrator Photovoltaic (CPV) Technology

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

    (CPV) technology has recently entered the market as a utility- scale option for the generation of solar electricity. This report explores the current status of CPV technology...

  12. Understanding Localized-Scanning Worms Zesheng Chen

    E-Print Network [OSTI]

    Ji, Chuanyi

    Understanding Localized-Scanning Worms Zesheng Chen School of Electrical & Computer Engineering Email: jic@ece.gatech.edu Abstract-- Localized scanning is a simple technique used by attackers to search for vulnerable hosts. Localized scanning trades off between the local and the global search

  13. Return currents and energy transport in the solar flaring atmosphere

    E-Print Network [OSTI]

    Codispoti, Anna; Piana, Michele; Pinamonti, Nicola

    2013-01-01T23:59:59.000Z

    According to a standard ohmic perspective, the injection of accelerated electrons into the flaring region violates local charge equilibrium and therefore, in response, return currents are driven by an electric field to equilibrate such charge violation. In this framework, the energy loss rate associated to these local currents has an ohmic nature and significantly shortens the acceleration electron path. In the present paper we adopt a different viewpoint and, specifically, we study the impact of the background drift velocity on the energy loss rate of accelerated electrons in solar flares. We first utilize the Rutherford cross-section to derive the formula of the energy loss rate when the collisional target has a finite temperature and the background instantaneously and coherently moves up to equilibrate the electron injection. We then use the continuity equation for electrons and imaging spectroscopy data provided by RHESSI to validate this model. Specifically, we show that this new formula for the energy l...

  14. July 22,2010 Department of Electrical and Electronic Engineering

    E-Print Network [OSTI]

    Leung, Ka-Cheong

    management, the local industry. ELEC1106. Electric power source (3 credit-units) Thermal power, nuclear power exclusive with ELEC1105 Electric power plant) ELEC1201. Fundamental electromagnetic theory (3 credit, electrical energy transmission, power transformer, basic electrical instrumentation. ELEC1103. Electrical

  15. Examination of the corrosion behavior of aluminum current collectors in lithium/polymer batteries

    SciTech Connect (OSTI)

    Chen, Y.; Devine, T.M.; Evans, J.W. [Lawrence Berkeley National Lab., CA (United States). Environmental Energy Technology Div.] [Lawrence Berkeley National Lab., CA (United States). Environmental Energy Technology Div.; [Univ. of California, Berkeley, CA (United States). Dept. of Materials Science and Mineral Engineering; Monteiro, O.R.; Brown, I.G. [Lawrence Berkeley National Lab., CA (United States). Accelerator and Fusion Research Div.] [Lawrence Berkeley National Lab., CA (United States). Accelerator and Fusion Research Div.

    1999-04-01T23:59:59.000Z

    The corrosion behavior of aluminum, a candidate material for the current collectors of the positive electrodes of lithium-polymer batteries, in contact with a lithium polymer electrolyte was examined in both batteries and three-electrode electrochemical cells. The results indicate aluminum is resistant to uniform corrosion in the polymer electrolyte: poly(ethylene oxide)-LiN(CF{sub 3}SO{sub 2}){sub 2} but can be susceptible to pitting corrosion. Localized pitting corrosion occurs on the aluminum current collector during overcharging of the battery. Pitting corrosion only occurred in the electrochemical cells when the aluminum electrode was anodically polarized to potentials that were considerably greater than those that resulted in pitting corrosion in batteries. The greater susceptibility of the aluminum current collectors of batteries to pitting corrosion is attributed to inhomogeneous current flow through the current collector. This results in local breakdown of the passive film on aluminum at sites of locally high current density. The inhomogeneous current density that flows through the aluminum/cathode interface is caused by the presence of discrete paths through the cathode with low electrical resistance. In an effort to improve the localized corrosion behavior of aluminum electrodes, it was found that surfaces impregnated by ion implantation with {approximately}20 atom % tungsten exhibited enhanced resistance to pitting corrosion in poly(ethylene oxide)-LiN(CF{sub 3}SO{sub 2}){sub 2}.

  16. Hybrid & electric vehicle technology and its market feasibility

    E-Print Network [OSTI]

    Jeon, Sang Yeob

    2010-01-01T23:59:59.000Z

    In this thesis, Hybrid Electric Vehicles (HEV), Plug-In Hybrid Electric Vehicle (PHEV) and Electric Vehicle (EV) technology and their sales forecasts are discussed. First, the current limitations and the future potential ...

  17. Electricity markets in the western United States

    SciTech Connect (OSTI)

    Bailey, E.M.

    1998-07-01T23:59:59.000Z

    This article introduces the use of rigorous econometric tools to understand the geographic scope of the market for generation services. These tools are applied to data from the current wholesale electricity market in the western United States. The behavior of the current wholesale electricity market and the methods used to assess the expanse of the geographic market in the current wholesale electricity market can go a long way toward informing the discussion of pricing behavior and performance in a restructured electricity industry. First, the current wholesale electricity market is already effectively unregulated and suffers from the same technical complexities that face a retail electricity market. Consequently, understanding the supply and demand conditions that cause the extent of the geographic market for generation services to narrow in the current wholesale electricity market can shed light on which times the geographic expanse of the market may narrow in a restructures electricity market. Second, the techniques developed in this paper to assess the extent of the current wholesale electricity market can be applied readily to a restructured electricity market. Finally, because market conditions in the electricity industry are likely to change significantly in the next few years, as the structure of the electricity sector changes dramatically, this analysis of the geographic expanse of the market can provide a useful benchmark against which to compare post-restructuring wholesale price relationships.

  18. Current to Current Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, clickInformationNew|CoreCpWing County,ElectricCumingCurrent Group,LLC

  19. Current to Current | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, clickInformationNew|CoreCpWing County,ElectricCumingCurrent Group,LLCto

  20. Wholesale Electricity PriceWholesale Electricity Price and Retail Requirements,and Retail Requirements,

    E-Print Network [OSTI]

    Requirements, and Natural Gas Priceand Natural Gas Price ForecastsForecasts Michael Schilmoeller Power Natural gas price #12;Page 2 3 Current Electricity Price ForecastCurrent Electricity Price Forecast recent electricity requirements forecast Most recent (11/28/2008) natural gas price forecast

  1. Current control circuitry

    DOE Patents [OSTI]

    Taubman, Matthew S. (Richland, WA)

    2005-03-15T23:59:59.000Z

    Among the embodiments of the present invention is an apparatus that includes a transistor (30), a servo device (40), and a current source (50). The servo device (40) is operable to provide a common base mode of operation of the transistor (30) by maintaining an approximately constant voltage level at the transistor base (32b). The current source (150) is operable to provide a bias current to the transistor (30). A first device (24) provides an input signal to an electrical node (70) positioned between the emitter (32e) of the transistor (30) and the current source (50). A second device (26) receives an output signal from the collector (32c) of the transistor (30).

  2. Fault current limiter

    DOE Patents [OSTI]

    Darmann, Francis Anthony

    2013-10-08T23:59:59.000Z

    A fault current limiter (FCL) includes a series of high permeability posts for collectively define a core for the FCL. A DC coil, for the purposes of saturating a portion of the high permeability posts, surrounds the complete structure outside of an enclosure in the form of a vessel. The vessel contains a dielectric insulation medium. AC coils, for transporting AC current, are wound on insulating formers and electrically interconnected to each other in a manner such that the senses of the magnetic field produced by each AC coil in the corresponding high permeability core are opposing. There are insulation barriers between phases to improve dielectric withstand properties of the dielectric medium.

  3. High current ion source

    DOE Patents [OSTI]

    Brown, Ian G. (1088 Woodside Rd., Berkeley, CA 94708); MacGill, Robert A. (645 Kern St., Richmond, CA 94805); Galvin, James E. (2 Commodore Dr. #276, Emeryville, CA 94608)

    1990-01-01T23:59:59.000Z

    An ion source utilizing a cathode and anode for producing an electric arc therebetween. The arc is sufficient to vaporize a portion of the cathode to form a plasma. The plasma leaves the generation region and expands through another regon. The density profile of the plasma may be flattened using a magnetic field formed within a vacuum chamber. Ions are extracted from the plasma to produce a high current broad on beam.

  4. State Renewable Electricity Profiles

    Reports and Publications (EIA)

    2012-01-01T23:59:59.000Z

    Presents a summary of current and recent historical data for the renewable electric power industry. The data focuses on net summer capacity and net generation for each type of renewable generator, as well as fossil-fired and nuclear power plant types, for the period 2006 through 2010.

  5. Electric vehicles

    SciTech Connect (OSTI)

    Not Available

    1990-03-01T23:59:59.000Z

    Quiet, clean, and efficient, electric vehicles (EVs) may someday become a practical mode of transportation for the general public. Electric vehicles can provide many advantages for the nation's environment and energy supply because they run on electricity, which can be produced from many sources of energy such as coal, natural gas, uranium, and hydropower. These vehicles offer fuel versatility to the transportation sector, which depends almost solely on oil for its energy needs. Electric vehicles are any mode of transportation operated by a motor that receives electricity from a battery or fuel cell. EVs come in all shapes and sizes and may be used for different tasks. Some EVs are small and simple, such as golf carts and electric wheel chairs. Others are larger and more complex, such as automobile and vans. Some EVs, such as fork lifts, are used in industries. In this fact sheet, we will discuss mostly automobiles and vans. There are also variations on electric vehicles, such as hybrid vehicles and solar-powered vehicles. Hybrid vehicles use electricity as their primary source of energy, however, they also use a backup source of energy, such as gasoline, methanol or ethanol. Solar-powered vehicles are electric vehicles that use photovoltaic cells (cells that convert solar energy to electricity) rather than utility-supplied electricity to recharge the batteries. This paper discusses these concepts.

  6. CHEVROLET | ELECTRIC | GREEN | SPARK EV | TECHNOLOGY. INNOVATION...

    Open Energy Info (EERE)

    CHEVROLET | ELECTRIC | GREEN | SPARK EV | TECHNOLOGY. INNOVATION & SOLUTIONS | GREENER VEHICLES Home There are currently no posts in this category. Syndicate content...

  7. Plug-In Hybrid Electric Vehicles (Presentation)

    SciTech Connect (OSTI)

    Markel, T.

    2006-05-08T23:59:59.000Z

    Provides an overview on the current status, long-term prospects, and key challenges in the development of plug-in hybrid electric vehicle technology.

  8. Self-triggering superconducting fault current limiter

    DOE Patents [OSTI]

    Yuan, Xing (Albany, NY); Tekletsadik, Kasegn (Rexford, NY)

    2008-10-21T23:59:59.000Z

    A modular and scaleable Matrix Fault Current Limiter (MFCL) that functions as a "variable impedance" device in an electric power network, using components made of superconducting and non-superconducting electrically conductive materials. The matrix fault current limiter comprises a fault current limiter module that includes a superconductor which is electrically coupled in parallel with a trigger coil, wherein the trigger coil is magnetically coupled to the superconductor. The current surge doing a fault within the electrical power network will cause the superconductor to transition to its resistive state and also generate a uniform magnetic field in the trigger coil and simultaneously limit the voltage developed across the superconductor. This results in fast and uniform quenching of the superconductors, significantly reduces the burnout risk associated with non-uniformity often existing within the volume of superconductor materials. The fault current limiter modules may be electrically coupled together to form various "n" (rows).times."m" (columns) matrix configurations.

  9. Strong permanent magnets provide a backbone technology required many products, including computers, electric cars, and

    E-Print Network [OSTI]

    McQuade, D. Tyler

    , electric cars, and wind-powered generators. Currently, the strongest permanent magnets contain rare earth

  10. Current Rusume

    E-Print Network [OSTI]

    2015-02-09T23:59:59.000Z

    Research Interest Rough paths theory, Stochastic differential equations, ... I am currently working on a problem about stochastic analysis on Riemannian folia-.

  11. Planning an itinerary for an electric vehicle

    E-Print Network [OSTI]

    Chale-Gongora, Hugo G.

    The steady increase in oil prices and awareness regarding environmental risks due to carbon dioxide emissions are promoting the current interest in electric vehicles. However, the current relatively low driving range ...

  12. Electrical Engineer

    Broader source: Energy.gov [DOE]

    The incumbent in this position will serve as an Electrical Engineer in the Strategy and Program Management organization of Transmission Services. The Strategy and Program Management organization is...

  13. Electric Vehicles

    ScienceCinema (OSTI)

    Ozpineci, Burak

    2014-07-23T23:59:59.000Z

    Burak Ozpineci sees a future where electric vehicles charge while we drive them down the road, thanks in part to research under way at ORNL.

  14. Electrical hazards

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

    and certification by ANL prior to use. The Control of Hazardous Energy Sources - LockoutTagout (LOTO) Types of Energy Sources 1. Electricity 2. Gas, steam & pressurized...

  15. Electric Vehicles

    SciTech Connect (OSTI)

    Ozpineci, Burak

    2014-05-02T23:59:59.000Z

    Burak Ozpineci sees a future where electric vehicles charge while we drive them down the road, thanks in part to research under way at ORNL.

  16. Electric and Hydrogen Vehicles Past and Progress

    E-Print Network [OSTI]

    Kammen, Daniel M.

    status and TSRC research ­ Future? · Hydrogen Fuel Cell Vehicles ­ 20 years ago ­ 10 years ago ­ Current · Transportation Propulsion, Fuels, & Emissions ­ Electric-drive vehicles (including plug-in hybrid and fuel-cell Electric and Fuel Cell Vehicles?Why Electric and Fuel Cell Vehicles? · Transportation accounts for about 33

  17. Electric power is an increasingly important aspect of modern society. We are extremely dependent on electric-

    E-Print Network [OSTI]

    Florida, University of

    , Infrastructure Figure 1. Structure and economic impacts of wood-fueled electric power generation in a localFact Sheet Electric power is an increasingly important aspect of modern society. We are extremely dependent on electric- ity for many uses, such as heating, cooling, lighting, and information technology

  18. Electric machine

    DOE Patents [OSTI]

    El-Refaie, Ayman Mohamed Fawzi (Niskayuna, NY); Reddy, Patel Bhageerath (Madison, WI)

    2012-07-17T23:59:59.000Z

    An interior permanent magnet electric machine is disclosed. The interior permanent magnet electric machine comprises a rotor comprising a plurality of radially placed magnets each having a proximal end and a distal end, wherein each magnet comprises a plurality of magnetic segments and at least one magnetic segment towards the distal end comprises a high resistivity magnetic material.

  19. Online Mechanism Design for Electric Vehicle Charging Enrico H. Gerding

    E-Print Network [OSTI]

    Chen, Yiling

    Online Mechanism Design for Electric Vehicle Charging Enrico H. Gerding eg@ecs.soton.ac.uk Valentin electric vehicles are expected to place a consid- erable strain on local electricity distribution networks mechanisms are evaluated in depth, using data from a real-world trial of electric vehicles in the UK

  20. Climate, extreme heat, and electricity demand in California

    SciTech Connect (OSTI)

    Miller, N.L.; Hayhoe, K.; Jin, J.; Auffhammer, M.

    2008-04-01T23:59:59.000Z

    Climate projections from three atmosphere-ocean climate models with a range of low to mid-high temperature sensitivity forced by the Intergovernmental Panel for Climate Change SRES higher, middle, and lower emission scenarios indicate that, over the 21st century, extreme heat events for major cities in heavily air-conditioned California will increase rapidly. These increases in temperature extremes are projected to exceed the rate of increase in mean temperature, along with increased variance. Extreme heat is defined here as the 90 percent exceedance probability (T90) of the local warmest summer days under the current climate. The number of extreme heat days in Los Angeles, where T90 is currently 95 F (32 C), may increase from 12 days to as many as 96 days per year by 2100, implying current-day heat wave conditions may last for the entire summer, with earlier onset. Overall, projected increases in extreme heat under the higher A1fi emission scenario by 2070-2099 tend to be 20-30 percent higher than those projected under the lower B1 emission scenario, ranging from approximately double the historical number of days for inland California cities (e.g. Sacramento and Fresno), up to four times for previously temperate coastal cities (e.g. Los Angeles, San Diego). These findings, combined with observed relationships between high temperature and electricity demand for air-conditioned regions, suggest potential shortfalls in transmission and supply during T90 peak electricity demand periods. When the projected extreme heat and peak demand for electricity are mapped onto current availability, maintaining technology and population constant only for demand side calculations, we find the potential for electricity deficits as high as 17 percent. Similar increases in extreme heat days are suggested for other locations across the U.S. southwest, as well as for developing nations with rapidly increasing electricity demands. Electricity response to recent extreme heat events, such as the July 2006 heat wave in California, suggests that peak electricity demand will challenge current supply, as well as future planned supply capacities when population and income growth are taken into account.

  1. Electrical and Computer Engineering

    E-Print Network [OSTI]

    Weber, Rodney

    COE 1000 Electrical and Computer Engineering Jennifer Michaels Professor and Interim Associate Chair for Undergraduate Affairs School of Electrical and Computer Engineering Fall 2011 #12;Defining Electrical and Computer Engineering Electrical Engineering: Electrical engineers explore electrical phenomena

  2. Temperature compensated and self-calibrated current sensor using reference current

    DOE Patents [OSTI]

    Yakymyshyn, Christopher Paul (Seminole, FL); Brubaker, Michael Allen (Loveland, CO); Yakymyshyn, Pamela Jane (Seminole, FL)

    2008-01-22T23:59:59.000Z

    A method is described to provide temperature compensation and self-calibration of a current sensor based on a plurality of magnetic field sensors positioned around a current carrying conductor. A reference electrical current carried by a conductor positioned within the sensing window of the current sensor is used to correct variations in the output signal due to temperature variations and aging.

  3. Electric Two-Wheelers in China: Effect on Travel Behavior, Mode Shift, and User Safety Perceptions in a Medium-Sized City

    E-Print Network [OSTI]

    Weinert, Jonathan X.; Ma, Chaktan; Yang, Xinmiao; Cherry, Christopher R.

    2008-01-01T23:59:59.000Z

    pollution. Although local pol- lution is negligible, they do operate on electricity generated mainly from coal-?

  4. Electrical energy consumption control apparatuses and electrical energy consumption control methods

    DOE Patents [OSTI]

    Hammerstrom, Donald J.

    2012-09-04T23:59:59.000Z

    Electrical energy consumption control apparatuses and electrical energy consumption control methods are described. According to one aspect, an electrical energy consumption control apparatus includes processing circuitry configured to receive a signal which is indicative of current of electrical energy which is consumed by a plurality of loads at a site, to compare the signal which is indicative of current of electrical energy which is consumed by the plurality of loads at the site with a desired substantially sinusoidal waveform of current of electrical energy which is received at the site from an electrical power system, and to use the comparison to control an amount of the electrical energy which is consumed by at least one of the loads of the site.

  5. Electrical connector

    DOE Patents [OSTI]

    Dilliner, Jennifer L.; Baker, Thomas M.; Akasam, Sivaprasad; Hoff, Brian D.

    2006-11-21T23:59:59.000Z

    An electrical connector includes a female component having one or more receptacles, a first test receptacle, and a second test receptacle. The electrical connector also includes a male component having one or more terminals configured to engage the one or more receptacles, a first test pin configured to engage the first test receptacle, and a second test pin configured to engage the second test receptacle. The first test receptacle is electrically connected to the second test receptacle, and at least one of the first test pin and the second test pin is shorter in length than the one or more terminals.

  6. Successful Pursuit of Small Electrical and Controls Projects by a Small Civil Engineering Firm

    E-Print Network [OSTI]

    Gates, Craig

    2008-07-25T23:59:59.000Z

    This paper determines how a small, primarily civil engineering firm possessing an electrical and controls group can successfully pursue small electrical and controls projects issued by local electrical generation utilities. Not only...

  7. As technology advances, the need for electricity increases, and as a result, more energy is being consumed on a daily basis. Consequently, the strain on energy and economic resources becomes more evident. Currently, the average energy consumer can see his

    E-Print Network [OSTI]

    Liebling, Michael

    , Branton Horsley PowWow Energy Groups Users and companies will be able to create a sense of community amongOverview As technology advances, the need for electricity increases, and as a result, more energy is being consumed on a daily basis. Consequently, the strain on energy and economic resources becomes more

  8. Engineering Electrical &

    E-Print Network [OSTI]

    Hickman, Mark

    Computer Engineering Electrical & Electronic Engineering Mechatronics Engineering Mechanical Engineering Civil Engineering Natural Resources Engineering Forest Engineering Chemical & Process Engineering ELECTIVE 2 Required Engineering Intermediate Year 2011 Eight Required Courses Chart: 120 points College

  9. Engineering Electrical &

    E-Print Network [OSTI]

    Hickman, Mark

    Computer Engineering Electrical & Electronic Engineering Mechatronics Engineering Mechanical Engineering Civil Engineering Natural Resources Engineering Forest Engineering Chemical & Process Engineering ELECTIVE 2 Required Engineering Intermediate Year 2012 Eight Required Courses Chart: 120 points College

  10. Electrical leakage detection circuit

    DOE Patents [OSTI]

    Wild, Arthur

    2006-09-05T23:59:59.000Z

    A method is provided for detecting electrical leakage between a power supply and a frame of a vehicle or machine. The disclosed method includes coupling a first capacitor between a frame and a first terminal of a power supply for a predetermined period of time. The current flowing between the frame and the first capacitor is limited to a predetermined current limit. It is determined whether the voltage across the first capacitor exceeds a threshold voltage. A first output signal is provided when the voltage across the capacitor exceeds the threshold voltage.

  11. Local Transportation

    E-Print Network [OSTI]

    Local Transportation. Transportation from the Airport to Hotel. There are two types of taxi companies that operate at the airport: special and regular taxis (

  12. Current Titles

    SciTech Connect (OSTI)

    Various

    2006-06-01T23:59:59.000Z

    This booklet is published for those interested in current research being conducted at the National Center for Electron Microscopy. The NCEM is a DOE-designated national user facility and is available at no charge to qualified researchers. Access is controlled by an external steering committee. Interested researchers may contact Jane Cavlina, Administrator, at 510/486-6036.

  13. Modeling Electric Vehicle Benefits Connected to Smart Grids

    E-Print Network [OSTI]

    Stadler, Michael

    2012-01-01T23:59:59.000Z

    tariff-driven demand response in these buildings. By usingbuilding electricity costs distributed energy resources costs fuel costs demand responsebuilding energy systems. Local storage will enable demand response.

  14. UNL WATER CENTER WATER CURRENT

    E-Print Network [OSTI]

    Nebraska-Lincoln, University of

    ................ Sidney Area Deals with Drought 6................ Water and Electricity Are Inseparable 10's East Campus. "Consolidating administration,faculty and staff and facilities is costeffectiveandper or commercial products constitute endorsement by the U.S. Government. WATER CURRENT Water Center University

  15. Apparatus for measuring the local void fraction in a flowing liquid containing a gas

    DOE Patents [OSTI]

    Dunn, Patrick F. (Downers Grove, IL)

    1981-01-01T23:59:59.000Z

    The local void fraction in liquid containing a gas is measured by placing an impedance-variation probe in the liquid, applying a controlled voltage or current to the probe, and measuring the probe current or voltage. A circuit for applying the one electrical parameter and measuring the other includes a feedback amplifier that minimizes the effect of probe capacitance and a digitizer to provide a clean signal. Time integration of the signal provides a measure of the void fraction, and an oscilloscope display also shows bubble size and distribution.

  16. Agenda: State, Local and Tribal Issues

    Broader source: Energy.gov [DOE]

    Many of the primary authorities and governance structures that exist for states, localities and tribes related to electricity infrastructure have been in place for decades. What can be learned from...

  17. Motor monitoring method and apparatus using high frequency current components

    DOE Patents [OSTI]

    Casada, Donald A. (Knoxville, TN)

    1996-01-01T23:59:59.000Z

    A motor current analysis method and apparatus for monitoring electrical-motor-driven devices. The method and apparatus utilize high frequency portions of the motor current spectra to evaluate the condition of the electric motor and the device driven by the electric motor. The motor current signal produced as a result of an electric motor is monitored and the low frequency components of the signal are removed by a high-pass filter. The signal is then analyzed to determine the condition of the electrical motor and the driven device.

  18. Grid-Based Renewable Electricity and Hydrogen Integration

    E-Print Network [OSTI]

    NumberofVehicles Mature Hydrogen- Electric Economy · Coal (with Carbon sequestration) · Nuclear in carbon emissions from the current electricity mix ­ Compared to Natural Gas-Derived Hydrogen - 65% reduction in carbon emissions from the current electricity mix #12;Goals for Electrolysis (cont.) · Need

  19. Detecting topological currents in graphene superlattices

    E-Print Network [OSTI]

    Gorbachev, R. V.

    Topological materials may exhibit Hall-like currents flowing transversely to the applied electric field even in the absence of a magnetic field. In graphene superlattices, which have broken inversion symmetry, topological ...

  20. On the Measured Current in Electrospinning

    E-Print Network [OSTI]

    Bhattacharjee, P. K.

    The origin and scaling of the current measured during steady electrospinning of polymer solutions in organic solvents are considered. For a specified electric field strength E, flow rate Q, and conductivity K, the total ...

  1. Electrically powered hand tool

    DOE Patents [OSTI]

    Myers, Kurt S.; Reed, Teddy R.

    2007-01-16T23:59:59.000Z

    An electrically powered hand tool is described and which includes a three phase electrical motor having a plurality of poles; an electrical motor drive electrically coupled with the three phase electrical motor; and a source of electrical power which is converted to greater than about 208 volts three-phase and which is electrically coupled with the electrical motor drive.

  2. Current Status and Future Assumptions INTRODUCTION

    E-Print Network [OSTI]

    structure, higher electricity prices, and regional and national conservation efforts. 0 5000 10000 15000 of the region's electricity system, some relevant historical trends leading to that status, and the Council's projections of how that status might change in the future. An understanding of our current situation and how

  3. Variationally Constrained Numerical Solution of Electrical Impedance Tomography

    E-Print Network [OSTI]

    Zhang, Yin

    deposits [77], detection of leaks in underground storage tanks [79] and for monitoring flows of injected the influence of external electric fields [58]. Let us consider a bounded, simply connected set# # IR d , for d the electric field and the electric current at location x # # Electrical Impedance Tomography (EIT

  4. Tubular solid oxide fuel cell current collector

    DOE Patents [OSTI]

    Bischoff, Brian L. (Knoxville, TN); Sutton, Theodore G. (Kingston, TN); Armstrong, Timothy R. (Clinton, TN)

    2010-07-20T23:59:59.000Z

    An internal current collector for use inside a tubular solid oxide fuel cell (TSOFC) electrode comprises a tubular coil spring disposed concentrically within a TSOFC electrode and in firm uniform tangential electrical contact with the electrode inner surface. The current collector maximizes the contact area between the current collector and the electrode. The current collector is made of a metal that is electrically conductive and able to survive under the operational conditions of the fuel cell, i.e., the cathode in air, and the anode in fuel such as hydrogen, CO, CO.sub.2, H.sub.2O or H.sub.2S.

  5. Local Control of Reactive Power by Distributed Photovoltaic Generators

    E-Print Network [OSTI]

    Turitsyn, Konstantin S; Backhaus, Scott; Chertkov, Misha

    2010-01-01T23:59:59.000Z

    High penetration levels of distributed photovoltaic (PV) generation on an electrical distribution circuit may severely degrade power quality due to voltage sags and swells caused by rapidly varying PV generation during cloud transients coupled with the slow response of existing utility compensation and regulation equipment. Although not permitted under current standards for interconnection of distributed generation, fast-reacting, VAR-capable PV inverters may provide the necessary reactive power injection or consumption to maintain voltage regulation under difficult transient conditions. As side benefit, the control of reactive power injection at each PV inverter provides an opportunity and a new tool for distribution utilities to optimize the performance of distribution circuits, e.g. by minimizing thermal losses. We suggest a local control scheme that dispatches reactive power from each PV inverter based on local instantaneous measurements of the real and reactive components of the consumed power and the re...

  6. Simulating the Household Plug-in Hybrid Electric Vehicle Distribution and its Electric Distribution Network Impacts

    SciTech Connect (OSTI)

    Cui, Xiaohui [ORNL] [ORNL; Kim, Hoe Kyoung [ORNL] [ORNL; Liu, Cheng [ORNL] [ORNL; Kao, Shih-Chieh [ORNL] [ORNL; Bhaduri, Budhendra L [ORNL] [ORNL

    2012-01-01T23:59:59.000Z

    This paper presents a multi agent-based simulation framework for modeling spatial distribution of plug-in hybrid electric vehicle ownership at local residential level, discovering plug-in hybrid electric vehicle hot zones where ownership may quickly increase in the near future, and estimating the impacts of the increasing plug-in hybrid electric vehicle ownership on the local electric distribution network with different charging strategies. We use Knox County, Tennessee as a case study to highlight the simulation results of the agent-based simulation framework.

  7. Passive fault current limiting device

    DOE Patents [OSTI]

    Evans, Daniel J. (Wheeling, IL); Cha, Yung S. (Darien, IL)

    1999-01-01T23:59:59.000Z

    A passive current limiting device and isolator is particularly adapted for use at high power levels for limiting excessive currents in a circuit in a fault condition such as an electrical short. The current limiting device comprises a magnetic core wound with two magnetically opposed, parallel connected coils of copper, a high temperature superconductor or other electrically conducting material, and a fault element connected in series with one of the coils. Under normal operating conditions, the magnetic flux density produced by the two coils cancel each other. Under a fault condition, the fault element is triggered to cause an imbalance in the magnetic flux density between the two coils which results in an increase in the impedance in the coils. While the fault element may be a separate current limiter, switch, fuse, bimetal strip or the like, it preferably is a superconductor current limiter conducting one-half of the current load compared to the same limiter wired to carry the total current of the circuit. The major voltage during a fault condition is in the coils wound on the common core in a preferred embodiment.

  8. Passive fault current limiting device

    DOE Patents [OSTI]

    Evans, D.J.; Cha, Y.S.

    1999-04-06T23:59:59.000Z

    A passive current limiting device and isolator is particularly adapted for use at high power levels for limiting excessive currents in a circuit in a fault condition such as an electrical short. The current limiting device comprises a magnetic core wound with two magnetically opposed, parallel connected coils of copper, a high temperature superconductor or other electrically conducting material, and a fault element connected in series with one of the coils. Under normal operating conditions, the magnetic flux density produced by the two coils cancel each other. Under a fault condition, the fault element is triggered to cause an imbalance in the magnetic flux density between the two coils which results in an increase in the impedance in the coils. While the fault element may be a separate current limiter, switch, fuse, bimetal strip or the like, it preferably is a superconductor current limiter conducting one-half of the current load compared to the same limiter wired to carry the total current of the circuit. The major voltage during a fault condition is in the coils wound on the common core in a preferred embodiment. 6 figs.

  9. RETURN CURRENTS AND ENERGY TRANSPORT IN THE SOLAR FLARING ATMOSPHERE

    SciTech Connect (OSTI)

    Codispoti, Anna; Torre, Gabriele; Piana, Michele; Pinamonti, Nicola [Dipartimento di Matematica, Universita di Genova, via Dodecaneso 35, I-16146 Genova (Italy)

    2013-08-20T23:59:59.000Z

    According to the standard Ohmic perspective, the injection of accelerated electrons into the flaring region violates local charge equilibrium and therefore, in response, return currents are driven by an electric field to equilibrate such charge violation. In this framework, the energy loss rate associated with these local currents has an Ohmic nature and significantly shortens the accelerated electron path. In the present paper, we adopt a different viewpoint and, specifically, we study the impact of the background drift velocity on the energy loss rate of accelerated electrons in solar flares. We first utilize the Rutherford cross-section to derive the formula of the energy loss rate when the collisional target has a finite temperature and the background instantaneously and coherently moves up to equilibrate the electron injection. We then use the continuity equation for electrons and imaging spectroscopy data provided by RHESSI to validate this model. We show that this new formula for the energy loss rate provides a better fit of the experimental data with respect to the model based on the effects of standard Ohmic return currents.

  10. DOE Fundamentals Handbook: Electrical Science, Volume 4

    SciTech Connect (OSTI)

    Not Available

    1992-06-01T23:59:59.000Z

    The Electrical Science Fundamentals Handbook was developed to assist nuclear facility operating contractors provide operators, maintenance personnel, and the technical staff with the necessary fundamentals training to ensure a basic understanding of electrical theory, terminology, and application. The handbook includes information on alternating current (AC) and direct current (DC) theory, circuits, motors, and generators; AC power and reactive transformers; and electrical test components; batteries; AC and DC voltage regulators; instruments and measuring devices. This information will provide personnel with a foundation for understanding the basic operation of various types of DOE nuclear facility electrical equipment.

  11. DOE Fundamentals Handbook: Electrical Science, Volume 3

    SciTech Connect (OSTI)

    Not Available

    1992-06-01T23:59:59.000Z

    The Electrical Science Fundamentals Handbook was developed to assist nuclear facility operating contractors provide operators, maintenance personnel, and the technical staff with the necessary fundamentals training to ensure a basic understanding of electrical theory, terminology, and application. The handbook includes information on alternating current (AC) and direct current (DC) theory, circuits, motors and generators; AC power and reactive components; batteries; AC and DC voltage regulators; transformers; and electrical test instruments and measuring devices. This information will provide personnel with a foundation for understanding the basic operation of various types of DOE nuclear facility electrical equipment.

  12. DOE Fundamentals Handbook: Electrical Science, Volume 1

    SciTech Connect (OSTI)

    Not Available

    1992-06-01T23:59:59.000Z

    The Electrical Science Fundamentals Handbook was developed to assist nuclear facility operating contractors provide operators, maintenance personnel, and the technical staff with the necessary fundamentals training to ensure a basic understanding of electrical theory, terminology, and application. The handbook includes information on alternating current (AC) and direct current (DC) theory, circuits, motors, and generators; AC power and reactive components; batteries; AC and DC voltage regulators; transformers; and electrical test instruments and measuring devices. This information will provide personnel with a foundation for understanding the basic operation of various types of DOE nuclear facility electrical equipment.

  13. Measuring resistivity changes from within a first cased well to monitor fluids injected into oil bearing geological formations from a second cased well while passing electrical current between the two cased wells

    DOE Patents [OSTI]

    Vail, W.B. III.

    1993-02-16T23:59:59.000Z

    A.C. current is conducted through geological formations separating two cased wells in an oil field undergoing enhanced oil recovery operations such as water flooding operations. Methods and apparatus are disclosed to measure the current leakage conducted into a geological formation from within a first cased well that is responsive to fluids injected into formation from a second cased well during the enhanced oil production activities. The current leakage and apparent resistivity measured within the first cased well are responsive to fluids injected into formation from the second cased well provided the distance of separation between the two cased wells is less than, or on the order of, a Characteristic Length appropriate for the problem.

  14. Measuring resistivity changes from within a first cased well to monitor fluids injected into oil bearing geological formations from a second cased well while passing electrical current between the two cased wells

    DOE Patents [OSTI]

    Vail, III, William B. (Bothell, WA)

    1993-01-01T23:59:59.000Z

    A.C. current is conducted through geological formations separating two cased wells in an oil field undergoing enhanced oil recovery operations such as water flooding operations. Methods and apparatus are disclosed to measure the current leakage conducted into a geological formation from within a first cased well that is responsive to fluids injected into formation from a second cased well during the enhanced oil production activities. The current leakage and apparent resistivity measured within the first cased well are responsive to fluids injected into formation from the second cased well provided the distance of separation between the two cased wells is less than, or on the order of, a Characteristic Length appropriate for the problem.

  15. Electromagnetic time reversal algorithms and source localization in lossy dielectric media

    E-Print Network [OSTI]

    Abdul Wahab; Amer Rasheed; Tasawar Hayat; Rab Nawaz

    2014-09-16T23:59:59.000Z

    The problem of reconstructing the spatial support of an extended radiating electric current source density in a lossy dielectric medium from transient boundary measurements of the electric fields is studied. A time reversal algorithm is proposed to localize a source density from loss-less wave-field measurements. Further, in order to recover source densities in a lossy medium, we first build attenuation operators thereby relating loss-less waves with lossy ones. Then based on asymptotic expansions of attenuation operators with respect to attenuation parameter, we propose two time reversal strategies for localization. The losses in electromagnetic wave propagation are incorporated using the Debye's complex permittivity, which is well-adopted for low frequencies (radio and microwave) associated with polarization in dielectrics.

  16. Electrical properties of dislocations in III-Nitrides

    SciTech Connect (OSTI)

    Cavalcoli, D.; Minj, A.; Pandey, S.; Cavallini, A. [Physics and Astronomy Dept. University of Bologna, Italy viale C Berti Pichat 6/II, Bologna (Italy)

    2014-02-21T23:59:59.000Z

    Research on GaN, AlN, InN (III-N) and their alloys is achieving new heights due their high potential applications in photonics and electronics. III-N semiconductors are mostly grown epitaxially on sapphire, and due to the large lattice mismatch and the differences in the thermal expansion coefficients, the structures usually contain many threading dislocations (TDs). While their structural properties have been widely investigated, their electrical characteristics and their role in the transport properties of the devices are still debated. In the present contribution we will show conductive AFM studies of TDs in GaN and Al/In GaN ternary alloys to evidence the role of strain, different surface polarity and composition on their electrical properties. Local I-V curves measured at TDs allowed us to clarify their role in the macroscopic electrical properties (leakage current, mobilities) of III-N based devices. Samples obtained by different growers (AIXTRON, III-V Lab) were studied. The comparison between the results obtained in the different alloys allowed us to understand the role of In and Al on the TDs electrical properties.

  17. ELECTRICAL & INFORMATION

    E-Print Network [OSTI]

    Wagner, Stephan

    focuses on. · Smart Grids: Electricity networks are designed to transport energy from where of energy and smarter management of the system. These are called Smart Grids. A number of research projects in medical informatics, smart cities, mining, energy, financial systems, etc. · Bioinformatics

  18. Wiregrass Electric Cooperative- H2O Plus Program

    Broader source: Energy.gov [DOE]

    Wiregrass Electric Cooperative is a consumer-owned electric utility serving over 20,000 consumers in the "Wiregrass" area of southeast Alabama.  They currently offer a water heater rebate program...

  19. Dynamic underground stripping: steam and electric heating for in situ decontamination of soils and groundwater

    DOE Patents [OSTI]

    Daily, W.D.; Ramirez, A.L.; Newmark, R.L.; Udell, K.; Buetnner, H.M.; Aines, R.D.

    1995-09-12T23:59:59.000Z

    A dynamic underground stripping process removes localized underground volatile organic compounds from heterogeneous soils and rock in a relatively short time. This method uses steam injection and electrical resistance heating to heat the contaminated underground area to increase the vapor pressure of the contaminants, thus speeding the process of contaminant removal and making the removal more complete. The injected steam passes through the more permeable sediments, distilling the organic contaminants, which are pumped to the surface. Large electrical currents are also applied to the contaminated area, which heat the impermeable subsurface layers that the steam has not penetrated. The condensed and vaporized contaminants are withdrawn by liquid pumping and vacuum extraction. The steam injection and electrical heating steps are repeated as necessary. Geophysical imaging methods can be used to map the boundary between the hot, dry, contamination-free underground zone and the cool, damp surrounding areas to help monitor the dynamic stripping process. 4 figs.

  20. Dynamic underground stripping: steam and electric heating for in situ decontamination of soils and groundwater

    DOE Patents [OSTI]

    Daily, William D. (Livermore, CA); Ramirez, Abelardo L. (Pleasanton, CA); Newmark, Robin L. (Pleasanton, CA); Udell, Kent (Berkeley, CA); Buetnner, Harley M. (Livermore, CA); Aines, Roger D. (Livermore, CA)

    1995-01-01T23:59:59.000Z

    A dynamic underground stripping process removes localized underground volatile organic compounds from heterogeneous soils and rock in a relatively short time. This method uses steam injection and electrical resistance heating to heat the contaminated underground area to increase the vapor pressure of the contaminants, thus speeding the process of contaminant removal and making the removal more complete. The injected steam passes through the more permeable sediments, distilling the organic contaminants, which are pumped to the surface. Large electrical currents are also applied to the contaminated area, which heat the impermeable subsurface layers that the steam has not penetrated. The condensed and vaporized contaminants are withdrawn by liquid pumping and vacuum extraction. The steam injection and electrical heating steps are repeated as necessary. Geophysical imaging methods can be used to map the boundary between the hot, dry, contamination-free underground zone and the cool, damp surrounding areas to help monitor the dynamic stripping process.

  1. Electrical initiation of an energetic nanolaminate film

    DOE Patents [OSTI]

    Tringe, Joseph W. (Walnut Creek, CA); Gash, Alexander E. (Brentwood, CA); Barbee, Jr., Troy W. (Palo Alto, CA)

    2010-03-30T23:59:59.000Z

    A heating apparatus comprising an energetic nanolaminate film that produces heat when initiated, a power source that provides an electric current, and a control that initiates the energetic nanolaminate film by directing the electric current to the energetic nanolaminate film and joule heating the energetic nanolaminate film to an initiation temperature. Also a method of heating comprising providing an energetic nanolaminate film that produces heat when initiated, and initiating the energetic nanolaminate film by directing an electric current to the energetic nanolaminate film and joule heating the energetic nanolaminate film to an initiation temperature.

  2. Electrical and Computer Engineering Electrical Engineering

    E-Print Network [OSTI]

    Heller, Barbara

    Electrical and Computer Engineering Electrical Engineering Department Website: www.iit.edu/engineering/ece Electrical engineering is concerned with the generation, transmission, and utilization of electrical energy and with the transmitting and processing of information. Electrical engineers are involved in the analysis, design, and pro

  3. Temperature limited heater with a conduit substantially electrically isolated from the formation

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Sandberg, Chester Ledlie (Palo Alto, CA)

    2009-07-14T23:59:59.000Z

    A system for heating a hydrocarbon containing formation is described. A conduit may be located in an opening in the formation. The conduit includes ferromagnetic material. An electrical conductor is positioned inside the conduit, and is electrically coupled to the conduit at or near an end portion of the conduit so that the electrical conductor and the conduit are electrically coupled in series. Electrical current flows in the electrical conductor in a substantially opposite direction to electrical current flow in the conduit during application of electrical current to the system. The flow of electrons is substantially confined to the inside of the conduit by the electromagnetic field generated from electrical current flow in the electrical conductor so that the outside surface of the conduit is at or near substantially zero potential at 25.degree. C. The conduit may generate heat and heat the formation during application of electrical current.

  4. Fault current limiter and alternating current circuit breaker

    DOE Patents [OSTI]

    Boenig, H.J.

    1998-03-10T23:59:59.000Z

    A solid-state circuit breaker and current limiter are disclosed for a load served by an alternating current source having a source impedance, the solid-state circuit breaker and current limiter comprising a thyristor bridge interposed between the alternating current source and the load, the thyristor bridge having four thyristor legs and four nodes, with a first node connected to the alternating current source, and a second node connected to the load. A coil is connected from a third node to a fourth node, the coil having an impedance of a value calculated to limit the current flowing therethrough to a predetermined value. Control means are connected to the thyristor legs for limiting the alternating current flow to the load under fault conditions to a predetermined level, and for gating the thyristor bridge under fault conditions to quickly reduce alternating current flowing therethrough to zero and thereafter to maintain the thyristor bridge in an electrically open condition preventing the alternating current from flowing therethrough for a predetermined period of time. 9 figs.

  5. Capacity Markets for Electricity

    E-Print Network [OSTI]

    Creti, Anna; Fabra, Natalia

    2004-01-01T23:59:59.000Z

    Designing Markets for Electricity. Wiley IEEE Press. [25]in the England and Wales Electricity Market”, Power WorkingFelder (1996), “Should Electricity Markets Have a Capacity

  6. Retail Electricity Competition

    E-Print Network [OSTI]

    Joskow, Paul; Tirole, Jean

    2004-01-01T23:59:59.000Z

    Reliability and Competitive Electricity Markets” mimeo, MITCSEM WP 130 Retail Electricity Competition * Paul Joskow andwww.ucei.org Retail Electricity Competition ? Paul Joskow †

  7. Designing Electricity Auctions

    E-Print Network [OSTI]

    Fabra, Natalia; von der Fehr, Nils-Henrik; Harbord, David

    2004-01-01T23:59:59.000Z

    market performance in electricity auctions, it appears thatMcSorely (2001) “Regulating Electricity Markets: Experiencethe United Kingdom,” The Electricity Journal, December, 81-

  8. High Temperatures & Electricity Demand

    E-Print Network [OSTI]

    High Temperatures & Electricity Demand An Assessment of Supply Adequacy in California Trends.......................................................................................................1 HIGH TEMPERATURES AND ELECTRICITY DEMAND.....................................................................................................................7 SECTION I: HIGH TEMPERATURES AND ELECTRICITY DEMAND ..........................9 BACKGROUND

  9. UNIVERSITY OF CALIFORNIA, SANTA CRUZ DEPARTMENT OF ELECTRICAL ENGINEERING

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    UNIVERSITY OF CALIFORNIA, SANTA CRUZ DEPARTMENT OF ELECTRICAL ENGINEERING On-Going Adjunct Pool The Department of Electrical Engineering in the Baskin School of Engineering at the University of California with local industry in the field of electrical engineering. The campus is especially interested in candidates

  10. Financial statistics of major US publicly owned electric utilities 1994

    SciTech Connect (OSTI)

    NONE

    1995-12-15T23:59:59.000Z

    This publication presents 5 years (1990--94) of summary financial data and current year detailed financial data on the major publicly owned electric utilities. Generator and nongenerator summaries are presented. Composite tables present: Aggregates of income statement and balance sheet data, financial indicators, electric operation and maintenance expenses, electric utility plant, number of consumers, sales of electricity, and operating revenue, and electric energy account data.

  11. Electrical Engineer

    Broader source: Energy.gov [DOE]

    The primary purpose of this position is to perform real-time, current-day, and next-day studies of power system conditions, and provide advice based on this analysis to BPA Dispatchers during real...

  12. Illinois Municipal Electric Agency- Electric Efficiency Program

    Broader source: Energy.gov [DOE]

    The Illinois Municipal Electric Agency (IMEA) offers rebates to member municipal utilities* (those who purchase wholesale electric service from IMEA) and retail customers for energy efficiency...

  13. Evaluation of evolving residential electricity tariffs

    SciTech Connect (OSTI)

    Lai, Judy; DeForest, Nicholas; Kiliccote, Sila; Stadler, Michael; Marnay, Chris; Donadee, Jon

    2011-05-15T23:59:59.000Z

    Residential customers in California's Pacific Gas and Electric (PG&E) territory have seen several electricity rate structure changes in the past decade. This poster: examines the history of the residential pricing structure and key milestones; summarizes and analyzes the usage between 2006 and 2009 for different baseline/climate areas; discusses the residential electricity Smart Meter roll out; and compares sample bills for customers in two climates under the current pricing structure and also the future time of use (TOU) structure.

  14. Systems modeling for electric ship design

    E-Print Network [OSTI]

    Soultatis, Charalambos

    2004-01-01T23:59:59.000Z

    Diesel and gas turbine electric ship propulsion are of current interest for several types of vessels that are important for commercial shipping and for the next generation of war ships. During the design process of a ...

  15. ELECTRICAL ENGINEERING EECS Department

    E-Print Network [OSTI]

    ELECTRICAL ENGINEERING EECS Department The Electrical Engineering and Computer Science (EECS) Department at WSU offers undergraduate degrees in electrical engineering, computer engineering and computer science. The EECS Department offers master of science degrees in computer science, electrical engineering

  16. Electric car Gasoline car

    E-Print Network [OSTI]

    ENAC/ Electric car (Renault) Gasoline car (competitors) Gasoline car (Renault) Market shares of an electric vehicle? Electric car (Renault) Gasoline car (competitors) Gasoline car (Renault) Market shares preferences. · Identification of population segments with a strong interest for electric cars. · Forecasting

  17. assessing household electricity: Topics by E-print Network

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

    copy available at: http:ssrn.comabstract1562102 The Importance of Marginal Cost Electricity Pricing to the Success Mathematics Websites Summary: , current...

  18. The electric power industry : deregulation and market structure

    E-Print Network [OSTI]

    Thomson, Robert George

    1995-01-01T23:59:59.000Z

    The US electricity industry currently consists of vertically integrated regional utilities welding monopolistic power over their own geographic markets under the supervision of state and federally appointed regulators. ...

  19. Electric Dipole Moment of Magnetic Monopole

    E-Print Network [OSTI]

    Makoto Kobayashi

    2007-03-07T23:59:59.000Z

    The electric dipole moment of magnetic monopoles with spin is studied in the N=2 supersymmetric gauge theory. The dipole moments of the electric charge distributions, as well as the dipole moments due to the magnetic currents, are calculated. The contribution of charge distribution of the fermion to the gyroelectric ratio is expressed by using zeta(3).

  20. DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING

    E-Print Network [OSTI]

    DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING SCHOOL OF ENGINEERING UNIVERSITY OF NEW MEXICO of Electrical and Computer Engineering, of the University of New Mexico, Albuquerque NM 87131, {jkhoury and descriptions of net- work architectures are mostly idiomatic. This current state of affairs is expected

  1. For current viewing resistor loads

    DOE Patents [OSTI]

    Lyons, Gregory R. (Tijeras, NM); Hass, Jay B. (Lee's Summit, MO)

    2011-04-19T23:59:59.000Z

    The invention comprises a terminal unit for a flat cable comprising a BNC-PCB connector having a pin for electrically contacting one or more conducting elements of a flat cable, and a current viewing resistor having an opening through which the pin extends and having a resistor face that abuts a connector face of the BNC-PCB connector, wherein the device is a terminal unit for the flat cable.

  2. Investigation of leakage current paths in n-GaN by conductive atomic force microscopy

    SciTech Connect (OSTI)

    Kim, Bumho; Park, Yongjo, E-mail: yp0520@snu.ac.kr, E-mail: eyoon@snu.ac.kr [Energy Semiconductor Research Center, Advanced Institutes of Convergence Technology, Seoul National University, Suwon 443-270 (Korea, Republic of)] [Energy Semiconductor Research Center, Advanced Institutes of Convergence Technology, Seoul National University, Suwon 443-270 (Korea, Republic of); Moon, Daeyoung; Nanishi, Yasushi [WCU Hybrid Materials Program, Department of Materials Science and Engineering, Seoul National University, Seoul 151-742 (Korea, Republic of)] [WCU Hybrid Materials Program, Department of Materials Science and Engineering, Seoul National University, Seoul 151-742 (Korea, Republic of); Joo, Kisu [Energy Semiconductor Research Center, Advanced Institutes of Convergence Technology, Seoul National University, Suwon 443-270 (Korea, Republic of) [Energy Semiconductor Research Center, Advanced Institutes of Convergence Technology, Seoul National University, Suwon 443-270 (Korea, Republic of); Department of Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Suwon 443-270 (Korea, Republic of); Oh, Sewoung [Department of Materials Science and Engineering, Seoul National University, Seoul 151-742 (Korea, Republic of)] [Department of Materials Science and Engineering, Seoul National University, Seoul 151-742 (Korea, Republic of); Lee, Young Kuk [Korea Research Institute of Chemical Technology, Daejon 305-600 (Korea, Republic of)] [Korea Research Institute of Chemical Technology, Daejon 305-600 (Korea, Republic of); Yoon, Euijoon, E-mail: yp0520@snu.ac.kr, E-mail: eyoon@snu.ac.kr [Energy Semiconductor Research Center, Advanced Institutes of Convergence Technology, Seoul National University, Suwon 443-270 (Korea, Republic of) [Energy Semiconductor Research Center, Advanced Institutes of Convergence Technology, Seoul National University, Suwon 443-270 (Korea, Republic of); WCU Hybrid Materials Program, Department of Materials Science and Engineering, Seoul National University, Seoul 151-742 (Korea, Republic of); Department of Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Suwon 443-270 (Korea, Republic of); Department of Materials Science and Engineering, Seoul National University, Seoul 151-742 (Korea, Republic of)

    2014-03-10T23:59:59.000Z

    We have investigated electrical characteristics of leakage current paths in n-GaN layer grown by metal-organic chemical vapor deposition with conductive-atomic force microscopy (C-AFM). The C-AFM mapping shows two kinds of leakage current paths existing in the n-GaN layer: open-core dislocation and pure screw dislocation. From the localized I-V curves measured by C-AFM, we confirmed that the open-core screw dislocation shows more significant leakage current. We explained these results in terms of a modified Schottky band model based on donor states formed by oxygen segregation at the (10?10) sidewall of the open-core screw dislocation.

  3. Stator current demodulation for induction machine rotor faults diagnosis

    E-Print Network [OSTI]

    Boyer, Edmond

    with emphasis on stator current processing [1], [2]. It has been proven that mechanical and electrical faultsStator current demodulation for induction machine rotor faults diagnosis El Houssin El Bouchikhi of the stator currents. Hence, demodulation of the stator currents is of high interest for induction machines

  4. Electrical receptacle

    DOE Patents [OSTI]

    Leong, R.

    1993-06-22T23:59:59.000Z

    The invention is a receptacle for a three prong electrical plug which has either a tubular or U-shaped grounding prong. The inventive receptacle has a grounding prong socket which is sufficiently spacious to prevent the socket from significantly stretching when a larger, U-shaped grounding prong is inserted into the socket, and having two ridges to allow a snug fit when a smaller tubular shape grounding prong is inserted into the socket. The two ridges are made to prevent the socket from expanding when either the U-shaped grounding prong or the tubular grounding prong is inserted.

  5. Eddy Current Model of Ball Lightning

    E-Print Network [OSTI]

    J. D. Shelton

    2011-02-07T23:59:59.000Z

    Eddy Current Model of Ball Lightning Calculations show that high-energy ball lightning may consist of a ball of plasma containing a large circular electric current arising as an eddy current generated by lightning. Synthetic ball lightning might serve as a method of plasma confinement for purposes of nuclear fusion. In this paper, three articles concerning ball lightning and the related phenomenon of large ball lightning are combined to provide insight into this rarely glimpsed occurrence.

  6. Electric sales and revenue 1992, April 1994

    SciTech Connect (OSTI)

    Not Available

    1994-04-20T23:59:59.000Z

    The Electric Sales and Revenue is prepared by the Survey Management Division, Office of Coal, Nuclear, Electric and Alternate Fuels; Energy Information Administration (EIA); US Department of Energy. This publication provides information about sales of electricity, its associated revenue, and the average revenue per kilowatthour sold to residential, commercial, industrial, and other consumers throughout the United States. The sales, revenue, and average revenue per kilowatthour provided in the Electric Sales and Revenue are based on annual data reported by electric utilities for the calendar year ending December 31, 1992. The electric revenue reported by each electric utility includes the applicable revenue from kilowatthours sold; revenue from income; unemployment and other State and local taxes; energy, demand, and consumer service charges; environmental surcharges; franchise fees; fuel adjustments; and other miscellaneous charges. The revenue does not include taxes, such as sales and excise taxes, that are assessed on the consumer and collected through the utility. Average revenue per kilowatthour is defined as the cost per unit of electricity sold and is calculated by dividing retail sales into the associated electric revenue. The sales of electricity, associated revenue, and average revenue per kilowatthour provided in this report are presented at the national, Census division, State, and electric utility levels.

  7. Electric power annual 1995. Volume I

    SciTech Connect (OSTI)

    NONE

    1996-07-01T23:59:59.000Z

    The Electric Power Annual presents a summary of electric power industry statistics at national, regional, and State levels. The objective of the publication is to provide industry decisionmakers, government policymakers, analysts, and the general public with data that may be used in understanding U.S. electricity markets. The Electric Power Annual is prepared by the Coal and Electric Data and Renewables Division; Office of Coal, Nuclear, Electric and Alternate Fuels; Energy Information Administration (EIA); U.S. Department of Energy. In the private sector, the majority of the users of the Electric Power Annual are researchers and analysts and, ultimately, individuals with policy- and decisionmaking responsibilities in electric utility companies. Financial and investment institutions, economic development organizations interested in new power plant construction, special interest groups, lobbyists, electric power associations, and the news media will find data in the Electric Power Annual useful. In the public sector, users include analysts, researchers, statisticians, and other professionals with regulatory, policy, and program responsibilities for Federal, State, and local governments. The Congress and other legislative bodies may also be interested in general trends related to electricity at State and national levels. Much of the data in these reports can be used in analytic studies to evaluate new legislation. Public service commissions and other special government groups share an interest in State-level statistics. These groups can also compare the statistics for their States with those of other jurisdictions.

  8. DOE Fundamentals Handbook: Electrical Science, Volume 2

    SciTech Connect (OSTI)

    Not Available

    1992-06-01T23:59:59.000Z

    The Electrical Science Fundamentals Handbook was developed to assist nuclear facility operating contractors provide operators, maintenance personnel, and the technical staff with the necessary fundamentals training to ensure a basic understanding terminology, and application. The handbook includes information on alternating current (AC) and direct current (DC) theory, circuits, motors, and generators; AC power and reactive components; batteries; AC and DC voltage regulators; transformers; and electrical test instruments and measuring devices. This information will provide personnel with a foundation for understanding the basic operation of various types of DOE nuclear facility electrical equipment.

  9. Local Universities

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |Is Your HomeLatestCenter (LMI-EFRC)Department ofchampionshipLocal

  10. Local Information

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron 9 5Let usNucleartearing mode flows andPress)Local

  11. Electrical Characterization Laboratory (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01T23:59:59.000Z

    This fact sheet describes the purpose, lab specifications, applications scenarios, and information on how to partner with NREL's Electrical Characterization Laboratory at the Energy Systems Integration Facility. Electrical Characterization Laboratory at NREL's Energy Systems Integration Facility (ESIF) focuses on the detailed electrical characterization of components and systems. This laboratory allows researchers to test the ability of equipment to withstand high voltage surges and high current faults, including equipment using standard and advanced fuels such as hydrogen. Equipment that interconnected to the electric power grid is required to meet specific surge withstand capabilities. This type of application tests the ability of electrical equipment to survive a lightning strike on the main grid. These are often specified in IEEE standards such as IEEE Std. 1547. In addition, this lab provides a space for testing new, unproven, or potentially hazardous equipment for robust safety assessment prior to use in other labs at ESIF. The Electric Characterization Laboratory is in a location where new, possibly sensitive or secret equipment can be evaluated behind closed doors.

  12. Department of Electrical Engineering and Computer Science Photonics Education

    E-Print Network [OSTI]

    Van Stryland, Eric

    Department of Electrical Engineering and Computer Science Photonics Education Current & Future Education Expectations in Optics & Photonics Barry L. Shoop, Ph.D., P.E. Professor of Electrical Engineering Symposium 7 March 2014 #12;Department of Electrical Engineering and Computer Science 2 #12;Department

  13. Impacts of Severe Space Weather on the Electric Grid

    E-Print Network [OSTI]

    Schrijver, Karel

    Impacts of Severe Space Weather on the Electric Grid JASON The MITRE Corporation 7515 Colshire. TITLE AND SUBTITLE 5a. CONTRACT NUMBER Impacts of Severe Space Weather on the Electric Grid 5b. GRANT on the impact of space weather on the electric grid, seeking to understand 1) the current status of solar

  14. New microbe strain can make more electricity Thaindian News

    E-Print Network [OSTI]

    Lovley, Derek

    to this particular microbe's ability to produce electric current from organic waste and sediment. Geobacter's piliNew microbe strain can make more electricity Thaindian News HomeForumsAbout UsNews Map Wins "Fresh Face" in Twilight New microbe strain can make more electricity August 2nd, 2009 - 1:50 pm

  15. Global Electrical Conductivity Magnetic Satellite Induction Studies

    E-Print Network [OSTI]

    Constable, Steve

    · Geomagnetic depth sounding (GDS) method Measure horizontal and vertical magnetic fields 2nd-varying magnetic field induces electric currents in conductors. × E = - B t Secondary magnetic fields created by these currents appose the primary magnetic field. So, conductors attenuate magnetic fields. 2nd

  16. Bus bar electrical feedthrough for electrorefiner system

    DOE Patents [OSTI]

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

    2013-12-03T23:59:59.000Z

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

  17. Electrically driven photonic crystal nanocavity devices

    E-Print Network [OSTI]

    Shambat, Gary; Petykiewicz, Jan; Mayer, Marie A; Majumdar, Arka; Sarmiento, Tomas; Harris, James; Haller, Eugene E; Vuckovic, Jelena

    2012-01-01T23:59:59.000Z

    Interest in photonic crystal nanocavities is fueled by advances in device performance, particularly in the development of low-threshold laser sources. Effective electrical control of high performance photonic crystal lasers has thus far remained elusive due to the complexities associated with current injection into cavities. A fabrication procedure for electrically pumping photonic crystal membrane devices using a lateral p-i-n junction has been developed and is described in this work. We have demonstrated electrically pumped lasing in our junctions with a threshold of 181 nA at 50K - the lowest threshold ever demonstrated in an electrically pumped laser. At room temperature we find that our devices behave as single-mode light-emitting diodes (LEDs), which when directly modulated, have an ultrafast electrical response up to 10 GHz corresponding to less than 1 fJ/bit energy operation - the lowest for any optical transmitter. In addition, we have demonstrated electrical pumping of photonic crystal nanobeam LEDs...

  18. Prospects for biomass-to-electricity projects in Yunnan Province, China

    SciTech Connect (OSTI)

    Perlack, R.D.

    1996-02-01T23:59:59.000Z

    Efforts have been underway since 1989 to assess the prospects for biomass-to-electricity projects in Yunnan Province. Results of prefeasibility studies for specific projects suggest that they are both financially and technically viable. Because of low labor costs and favorable climate biomass can be grown on marginal and underutilized land and converted to electricity at costs lower than other alternatives. Bases on current plantation establishment rates, the potential size of the biomass resource can easily support over 1 GW of electric generating capacity in small-sized (up to 20-40 MW) cogeneration and stand-alone projects. These projects, if implemented, can ease power shortages, reduce unemployment, and help sustain the region`s economic growth. Moreover, the external environmental benefits of biomass energy are also potentially significant. This report briefly summarizes the history of biomass assessment efforts in Yunnan Province and discusses in more detail twelve projects that have been identified for U.S. private sector investment. This discussion includes a feasibility analysis of the projects (plantation-grown biomass and its conversion to electricity) and an estimate of the biomass resource base in the general vicinity of each project. This data as well as information on power needs and local capabilities to manage and operate a biomass-to-electricity project are then used to rank-order the twelve projects. One cogeneration and one stand-alone facility are recommended for additional study and possible investment.

  19. Conserved current in Markovian open-quantum systems

    SciTech Connect (OSTI)

    Bodor, Andras; Diosi, Lajos [Department of the Physics of Complex Systems, Eoetvoes University, H-1117 Budapest (Hungary); Research Institute for Particle and Nuclear Physics, H-1525 Budapest 114, P.O. Box 49 (Hungary)

    2006-06-15T23:59:59.000Z

    We reexamine the Markovian approximation of local current in open quantum systems, discussed recently by Gebauer and Car. Our derivation is more transparent; the proof of the current conservation becomes explicit and easy.

  20. Electron Bernstein wave current drive modeling in toroidal plasma confinement

    E-Print Network [OSTI]

    Decker, Joan, 1977-

    2005-01-01T23:59:59.000Z

    The steady-state confinement of tokamak plasmas in a fusion reactor requires non-inductively driven toroidal currents. Radio frequency waves in the electron cyclotron (EC) range of frequencies can drive localized currents ...

  1. Investment in nuclear generation in a restricted electricity market : an analysis of risks and financing options

    E-Print Network [OSTI]

    Berger, Raphael

    2006-01-01T23:59:59.000Z

    Since the late 1970s, the US electric power industry has been undergoing major changes. The electric utility industry had mainly consisted of highly regulated, vertically integrated, local monopolies, providing customers ...

  2. Electric-Field Control of Magnetism Intrinsic magnetoelectric coupling describes the microscopic interaction between magnetic and

    E-Print Network [OSTI]

    Maroncelli, Mark

    Electric-Field Control of Magnetism Intrinsic magnetoelectric coupling describes the microscopic interaction between magnetic and electric polarization in a single-phase material. The control of the magnetic of the two interactions. Moderate biaxial compression precipitates local magnetic competition

  3. Southeastern Electric- Electric Equipment Loan Program

    Broader source: Energy.gov [DOE]

    Southeastern Electric Cooperative is a member-owned electric cooperative that serves customers in the southeastern part of South Dakota. Southeastern offers a loan program for customers who want...

  4. Electrical/Electronic Engineering

    E-Print Network [OSTI]

    Berdichevsky, Victor

    Electrical/Electronic Engineering Technology The Division of Engineering of Science in Electrical/Electronic Engineering Technology Get ready for a dynamic career in Electrical/Electronic Engineering Technology. Possible applications

  5. Electricity Restructuring: Deregulation or Reregulation?

    E-Print Network [OSTI]

    Borenstein, Severin; Bushnell, James

    2000-01-01T23:59:59.000Z

    Power in the British Electricity Spot Market. ” American805. Catherine Wolfram. “Electricity Markets: Should thePower in Wholesale Electricity Markets. ” The Electricity

  6. DOE handbook electrical safety

    SciTech Connect (OSTI)

    NONE

    1998-01-01T23:59:59.000Z

    Electrical Safety Handbook presents the Department of Energy (DOE) safety standards for DOE field offices or facilities involved in the use of electrical energy. It has been prepared to provide a uniform set of electrical safety guidance and information for DOE installations to effect a reduction or elimination of risks associated with the use of electrical energy. The objectives of this handbook are to enhance electrical safety awareness and mitigate electrical hazards to employees, the public, and the environment.

  7. Electrical safety guidelines

    SciTech Connect (OSTI)

    Not Available

    1993-09-01T23:59:59.000Z

    The Electrical Safety Guidelines prescribes the DOE safety standards for DOE field offices or facilities involved in the use of electrical energy. It has been prepared to provide a uniform set of electrical safety standards and guidance for DOE installations in order to affect a reduction or elimination of risks associated with the use of electrical energy. The objectives of these guidelines are to enhance electrical safety awareness and mitigate electrical hazards to employees, the public, and the environment.

  8. Circulating current battery heater

    DOE Patents [OSTI]

    Ashtiani, Cyrus N. (West Bloomfield, MI); Stuart, Thomas A. (Toledo, OH)

    2001-01-01T23:59:59.000Z

    A circuit for heating energy storage devices such as batteries is provided. The circuit includes a pair of switches connected in a half-bridge configuration. Unidirectional current conduction devices are connected in parallel with each switch. A series resonant element for storing energy is connected from the energy storage device to the pair of switches. An energy storage device for intermediate storage of energy is connected in a loop with the series resonant element and one of the switches. The energy storage device which is being heated is connected in a loop with the series resonant element and the other switch. Energy from the heated energy storage device is transferred to the switched network and then recirculated back to the battery. The flow of energy through the battery causes internal power dissipation due to electrical to chemical conversion inefficiencies. The dissipated power causes the internal temperature of the battery to increase. Higher internal temperatures expand the cold temperature operating range and energy capacity utilization of the battery. As disclosed, either fixed frequency or variable frequency modulation schemes may be used to control the network.

  9. Electricity Monthly Update

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

    End Use: December 2014 Retail ratesprices and consumption In this section, we look at what electricity costs and how much is purchased. Charges for retail electric service are...

  10. California's electricity crisis

    E-Print Network [OSTI]

    Joskow, Paul L.

    2001-01-01T23:59:59.000Z

    The collapse of California's electricity restructuring and competition program has attracted attention around the world. Prices in California's competitive wholesale electricity market increased by 500% between the second ...

  11. Electric Fuel Pump Condition Monitor System Using Electricalsignature Analysis

    DOE Patents [OSTI]

    Haynes, Howard D [Knoxville, TN; Cox, Daryl F [Knoxville, TN; Welch, Donald E [Oak Ridge, TN

    2005-09-13T23:59:59.000Z

    A pump diagnostic system and method comprising current sensing probes clamped on electrical motor leads of a pump for sensing only current signals on incoming motor power, a signal processor having a means for buffering and anti-aliasing current signals into a pump motor current signal, and a computer having a means for analyzing, displaying, and reporting motor current signatures from the motor current signal to determine pump health using integrated motor and pump diagnostic parameters.

  12. Local control of reactive power by distributed photovoltaic generators

    SciTech Connect (OSTI)

    Chertkov, Michael [Los Alamos National Laboratory; Turitsyn, Konstantin [Los Alamos National Laboratory; Sulc, Petr [Los Alamos National Laboratory; Backhaus, Scott [Los Alamos National Laboratory

    2010-01-01T23:59:59.000Z

    High penetration levels of distributed photovoltaic (PV) generation on an electrical distribution circuit may severely degrade power quality due to voltage sags and swells caused by rapidly varying PV generation during cloud transients coupled with the slow response of existing utility compensation and regulation equipment. Although not permitted under current standards for interconnection of distributed generation, fast-reacting, VAR-capable PV inverters may provide the necessary reactive power injection or consumption to maintain voltage regulation under difficult transient conditions. As side benefit, the control of reactive power injection at each PV inverter provides an opportunity and a new tool for distribution utilities to optimize the performance of distribution circuits, e.g. by minimizing thermal losses. We suggest a local control scheme that dispatches reactive power from each PV inverter based on local instantaneous measurements of the real and reactive components of the consumed power and the real power generated by the PVs. Using one adjustable parameter per circuit, we balance the requirements on power quality and desire to minimize thermal losses. Numerical analysis of two exemplary systems, with comparable total PV generation albeit a different spatial distribution, show how to adjust the optimization parameter depending on the goal. Overall, this local scheme shows excellent performance; it's capable of guaranteeing acceptable power quality and achieving significant saving in thermal losses in various situations even when the renewable generation in excess of the circuit own load, i.e. feeding power back to the higher-level system.

  13. Superconducting electric power applications

    SciTech Connect (OSTI)

    Blaugher, R.D. [National Renewable Energy Lab., Golden, CO (United States)

    1997-06-01T23:59:59.000Z

    The application of superconductors to electric power systems has been actively pursued over the past 30 years. Following the realization of high-field, high-current superconductors in 1961, researchers applied these type II materials, such as Nb-Ti and Nb{sub 3}Sn, to laboratory magnets, followed by generators, motors, and transmission cables. Successful prototypes for the latter were constructed and tested by the mid-1980s. It is fair to assume that widespread utility acceptance of these low-temperature superconducting (LTS) power applications was compromised by the necessity for liquid helium cooling. The discovery of the high-temperature superconductors (HTS) in 1986, which offered the prospect for liquid nitrogen cooling, provided renewed interest and impetus and spurred the development of HTS power components. The expectations for HTS power components are, in fact, near realization, as a result of the rapid worldwide progress in HTS wire and tape development. This paper will review the history and present status of superconducting power-system-related applications. The major problems facing this technology and the prospects for commercialization and eventual integration into the utility sector will be discussed. General acceptance for superconducting power equipment by the electric utilities and other end-users will ultimately be based on the respective system performance, efficiency, reliability and maintenance, operational lifetime, and installed cost compared to conventional technologies.

  14. EERE's State & Local Energy Data Tool

    SciTech Connect (OSTI)

    Shambarger, Erick; DeCesaro, Jennifer

    2014-06-23T23:59:59.000Z

    EERE's State and Local Energy Data (SLED) Tool provides basic energy market information that can help state and local governments plan and implement clean energy projects, including electricity generation; fuel sources and costs; applicable policies, regulations, and financial incentives; and renewable energy resource potential. Watch this video to learn more about the tool and hear testimonials from real users about the benefits of using this tool.

  15. EERE's State & Local Energy Data Tool

    ScienceCinema (OSTI)

    Shambarger, Erick; DeCesaro, Jennifer

    2014-06-26T23:59:59.000Z

    EERE's State and Local Energy Data (SLED) Tool provides basic energy market information that can help state and local governments plan and implement clean energy projects, including electricity generation; fuel sources and costs; applicable policies, regulations, and financial incentives; and renewable energy resource potential. Watch this video to learn more about the tool and hear testimonials from real users about the benefits of using this tool.

  16. Biomass in the Deregulated Marketplace: Current Issues for Biomass Power

    SciTech Connect (OSTI)

    Not Available

    1998-12-01T23:59:59.000Z

    This issue brief provides readers with a monthly review and analysis of electric utility deregulation as it impacts biomass power production and distribution. The topical areas to be routinely covered will include Federal activities, State activities, Current challenges, and Current opportunities. Additionally, a monthly highlighted topic will provide more in-depth analysis of current issue impacting biomass power.

  17. Promoting electricity from renewable energy sources -- lessons learned from the EU, U.S. and Japan

    E-Print Network [OSTI]

    Haas, Reinhard

    2008-01-01T23:59:59.000Z

    showing the local potential for wind energy in differentpotential 1 for generating electricity from RES is windwind power owners. 53 In an assessment over time also the potential

  18. Quantum Locality?

    SciTech Connect (OSTI)

    Stapp, Henry

    2011-11-10T23:59:59.000Z

    Robert Griffiths has recently addressed, within the framework of a ‘consistent quantum theory’ (CQT) that he has developed, the issue of whether, as is often claimed, quantum mechanics entails a need for faster-than-light transfers of information over long distances. He argues, on the basis of his examination of certain arguments that claim to demonstrate the existence of such nonlocal influences, that such influences do not exist. However, his examination was restricted mainly to hidden-variable-based arguments that include in their premises some essentially classical-physics-type assumptions that are fundamentally incompatible with the precepts of quantum physics. One cannot logically prove properties of a system by attributing to the system properties alien to that system. Hence Griffiths’ rejection of hidden-variable-based proofs is logically warranted. Griffiths mentions the existence of a certain alternative proof that does not involve hidden variables, and that uses only macroscopically described observable properties. He notes that he had examined in his book proofs of this general kind, and concluded that they provide no evidence for nonlocal influences. But he did not examine the particular proof that he cites. An examination of that particular proof by the method specified by his ‘consistent quantum theory’ shows that the cited proof is valid within that restrictive framework. This necessary existence, within the ‘consistent’ framework, of long range essentially instantaneous influences refutes the claim made by Griffiths that his ‘consistent’ framework is superior to the orthodox quantum theory of von Neumann because it does not entail instantaneous influences. An added section responds to Griffiths’ reply, which cites a litany of ambiguities that seem to restrict, devastatingly, the scope of his CQT formalism, apparently to buttress his claim that my use of that formalism to validate the nonlocality theorem is flawed. But the vagaries that he cites do not upset the proof in question. It is show here in detail why the precise statement of this theorem justifies the specified application of CQT. It is also shown, in response to his challenge, why a putative proof of locality that he has proposed is not valid.

  19. A Fast Local Search Approach For Multiobjective problems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    electric car-sharing service with a car manufacturer partner. Compared to the Multiobjective Pareto Local - Transporta- tion services - Car-sharing 1 Introduction Many real world problems require to optimize several

  20. Introduction Computational Efficiency Electricity Portfolio Planning Electricity Portfolios

    E-Print Network [OSTI]

    Introduction Computational Efficiency Electricity Portfolio Planning Electricity Portfolios 2009/11/30­12/01 István Maros Electricity Portfolio #12;Introduction Computational Efficiency Electricity Portfolio Outline 1 Introduction 2 Computational Efficiency 3 Electricity Portfolio Approximate

  1. Renewable Electricity Futures Study

    E-Print Network [OSTI]

    Renewable Electricity Futures Study End-use Electricity Demand Volume 3 of 4 Volume 2 PDF Volume 3;Renewable Electricity Futures Study Edited By Hand, M.M. National Renewable Energy Laboratory Baldwin, S. U Sandor, D. National Renewable Energy Laboratory Suggested Citations Renewable Electricity Futures Study

  2. Renewable Electricity Futures Study

    E-Print Network [OSTI]

    Renewable Electricity Futures Study Bulk Electric Power Systems: Operations and Transmission by the Alliance for Sustainable Energy, LLC. #12;Renewable Electricity Futures Study Edited By Hand, M.M. National Suggested Citations Renewable Electricity Futures Study (Entire Report) National Renewable Energy Laboratory

  3. Renewable Electricity Futures Study

    E-Print Network [OSTI]

    Renewable Electricity Futures Study Exploration of High-Penetration Renewable Electricity Futures PDF Volume 4 PDF #12;Renewable Electricity Futures Study Edited By Hand, M.M. National Renewable Citations Renewable Electricity Futures Study (Entire Report) National Renewable Energy Laboratory. (2012

  4. Massachusetts Electric Vehicle Efforts

    E-Print Network [OSTI]

    California at Davis, University of

    Massachusetts Electric Vehicle Efforts Christine Kirby, MassDEP ZE-MAP Meeting October 24, 2014 #12 · Provide Clean Air · Grow the Clean Energy Economy · Electric vehicles are a key part of the solution #12 is promoting EVs 4 #12;TCI and Electric Vehicles · Established the Northeast Electric Vehicle Network through

  5. ELECTRICAL & COMPUTER ENGINEERING

    E-Print Network [OSTI]

    ELECTRICAL & COMPUTER ENGINEERING SEMINAR "Agile Sensing Systems: Analysis, Design and Implementation" by Prof. Jun (Jason) Zhang Electrical and Computer Engineering University of Denver Tuesday of Electrical and Computer Engineering at the University of Denver. He was with the School of Electrical

  6. ELECTRICAL ENGINEERING Curriculum Notes

    E-Print Network [OSTI]

    Mather, Patrick T.

    ELECTRICAL ENGINEERING Curriculum Notes 2013-2014 1. Electrical Engineering (EE) students must/programs/electrical_engineering) and minors are used to regulate technical electives. A student must complete four technical elective courses in Electrical Engineering or Computer Engineering. At a minimum

  7. Electronics, Electrical Engineering

    E-Print Network [OSTI]

    SCHOOL OF Electronics, Electrical Engineering and Computer Science IS IN YOUR HANDS THE FUTURE #12;SCHOOL OF Electronics, Electrical Engineering and Computer Science2 CAREERS IN ELECTRONICS, ELECTRICAL Belfast. Ranked among the top 100 in the world for Electrical and Electronic Engineering (QS World

  8. Syracuse University Electrical Engineering

    E-Print Network [OSTI]

    Mather, Patrick T.

    Syracuse University Electrical Engineering and Computer Science Tenure Track Faculty Position in Electrical Engineering The Department of Electrical Engineering and Computer Science is seeking applicants for a tenure track position in Electrical Engineering starting in August 2014 or January 2015. The department

  9. Electrical Engineering UNDERGRADUATE

    E-Print Network [OSTI]

    Suzuki, Masatsugu

    447 Electrical Engineering UNDERGRADUATE PROGRAMS The bachelor of science program in electrical advising office. Requirements for BS Degree in Electrical Engineering To receive the BS degree in electrical engineer- ing, students must complete a minimum of 65 credit hours in the upper-division program

  10. ELECTRICAL AND COMPUTER ENGINEERING

    E-Print Network [OSTI]

    Haykin, Simon

    Edison (prolific inventor), Nikola Tesla (inventor of the electric motor, transformer), Dilbert (comic

  11. Flexible moldable conductive current-limiting materials

    SciTech Connect (OSTI)

    Shea, John Joseph (Pittsburgh, PA); Djordjevic, Miomir B. (Milwaukee, WI); Hanna, William Kingston (Pittsburgh, PA)

    2002-01-01T23:59:59.000Z

    A current limiting PTC device (10) has two electrodes (14) with a thin film of electric conducting polymer material (20) disposed between the electrodes, the polymer material (20) having superior flexibility and short circuit performance, where the polymer material contains short chain aliphatic diepoxide, conductive filler particles, curing agent, and, preferably, a minor amount of bisphenol A epoxy resin.

  12. Apparatus and method for critical current measurements

    DOE Patents [OSTI]

    Martin, Joe A. (Espanola, NM); Dye, Robert C. (Los Alamos, NM)

    1992-01-01T23:59:59.000Z

    An apparatus for the measurement of the critical current of a superconductive sample, e.g., a clad superconductive sample, the apparatus including a conductive coil, a means for maintaining the coil in proximity to a superconductive sample, an electrical connection means for passing a low amplitude alternating current through the coil, a cooling means for maintaining the superconductive sample at a preselected temperature, a means for passing a current through the superconductive sample, and, a means for monitoring reactance of the coil, is disclosed, together with a process of measuring the critical current of a superconductive material, e.g., a clad superconductive material, by placing a superconductive material into the vicinity of the conductive coil of such an apparatus, cooling the superconductive material to a preselected temperature, passing a low amplitude alternating current through the coil, the alternating current capable of generating a magnetic field sufficient to penetrate, e.g., any cladding, and to induce eddy currents in the superconductive material, passing a steadily increasing current through the superconductive material, the current characterized as having a different frequency than the alternating current, and, monitoring the reactance of the coil with a phase sensitive detector as the current passed through the superconductive material is steadily increased whereby critical current of the superconductive material can be observed as the point whereat a component of impedance deviates.

  13. Available online at www.sciencedirect.com The electric picnic: synergistic requirements for exoelectrogenic

    E-Print Network [OSTI]

    into electrical current in microbial fuel cells (MFCs) [3]. Improvements in materials and reactor design have into electricity Exoelectrogenic microbes convert organic matter into electrical current by transferring electrons gained through metabolism to the anode of bioelectrochemical systems (BESs) [1,2 ]. These microbes have

  14. Scanning Tunneling Microscopy currents on locally disordered graphene

    E-Print Network [OSTI]

    Tsai, Shan-Wen; Peres, Nuno M. R.; Santos, J. E.; Ribeiro, R. M.

    2009-01-01T23:59:59.000Z

    Intrinsic ripples in graphene“, Nature Materials 6, 858 (Novoselov, ”Control of graphene’s properties by reversiblespectroscopy of monolayer graphene on SiO 2 ”, arXiv:

  15. Electric Vehicle Manufacturing in Southern California: Current Developments, Future Prospects

    E-Print Network [OSTI]

    Scott, Allen J.

    1993-01-01T23:59:59.000Z

    Battery contmnmentsystem HughesAn’craft Torrance Inductive chargingbattery monitor system, motor controller for performanceoptimization, and an on-board inductive charging

  16. Electric Vehicle Manufacturing in Southern California: Current Developments, Future Prospects

    E-Print Network [OSTI]

    Scott, Allen J.

    1993-01-01T23:59:59.000Z

    oil Oil/water separator sludge Unspecified waste offsludge Metal dust Other morgamc solid waste Halogenatedsolvents Oxygenatedsolvents Hydrocarbon solvents Unspecified solvent mlxture Waste andmixed oil

  17. Contribution of Electricity to Materials Processing: Historical and Current Perspectives

    E-Print Network [OSTI]

    Allanore, Antoine

    Introduction: Most major materials extraction processes are more than 100 years old, developed at a time of limited awareness of their environmental impact and the issue of resources limitations. In this context, it is ...

  18. Electric Vehicle Manufacturing in Southern California: Current Developments, Future Prospects

    E-Print Network [OSTI]

    Scott, Allen J.

    1993-01-01T23:59:59.000Z

    stealth" bomber the F-19 fighter, for example,both employadvancedplastics and metal and composite materials.

  19. Charge and current reservoirs for electric and magnetic field enhancement

    E-Print Network [OSTI]

    combines the advantages of the rod antenna and the bowtie antenna, and has higher field enhancement than, and F. Capasso, "Bowtie plasmonic quantum cascade laser antenna," Opt. Express 15(20), 13272­13281 (2007 the mismatch between light and nanoscale objects with gold bowtie nanoantennas," Phys. Rev. Lett. 94(1), 017402

  20. Electric Vehicle Manufacturing in Southern California: Current Developments, Future Prospects

    E-Print Network [OSTI]

    Scott, Allen J.

    1993-01-01T23:59:59.000Z

    energy source (zinc/air battery, carbon/potassiumhydroxide/Vehzcle Zn Zinc Zn-Atr Zinc-Air Battery XV Executive SummaryZn-Air) battery The zinc-air battery is also considered a

  1. Electricity transmission: an overview of the current debate

    E-Print Network [OSTI]

    Brunekreeft, Gert; Neuhoff, Karsten; Newbery, David

    2006-03-14T23:59:59.000Z

    is called on to perform an increasing role in supporting an effectively competitive power market. Both cross-border and internal transmission management demands raise a whole set of highly complex issues of both academic interest and policy relevance... transmission are very high, and the costs of somewhat over-building the network are rather modest, those charged with ensuring reliable supplies are likely to err on the side of too much rather than too little spare capacity. This further depresses...

  2. Direct Biological Conversion of Electrical Current into Methane by

    E-Print Network [OSTI]

    produced from renewable energy sources (such as wind, solar, or biomass) into a biofuel (methane) as well. Revised manuscript received March 5, 2009. Accepted March 6, 2009. New sustainable methods are needed to produce renewable energy carriers that can be stored and used for transportation, heating, or chemical

  3. Electric Vehicle Manufacturing in Southern California: Current Developments, Future Prospects

    E-Print Network [OSTI]

    Scott, Allen J.

    1993-01-01T23:59:59.000Z

    battery recharging, EVservicing and at training; 3) fleet buyersare more likely to take total life-cycle costsbattery) to provide ample acceleration; 3) a life cycle long enough to offset the initial inexpensive battery; cost,Battery Type Spectfie Energy (wh/kg) Energy Density 6Vh/l) Specific Power (W/kg) Cycle Life (cycles 80% DOD) Projected Cost

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

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041clothAdvanced Materials Advanced. C o w l i tCollaboration MarchCanadian and

  5. MHK Technologies/Current Electric Generator | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRose Bend < MHK Projects JumpPlane < MHKGenerator.jpg Technology

  6. Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking of Blythe SolarContamination Detector WorkshopHydrogenEnergyfor(FCEVs) |

  7. Local Content Requirements in British Columbia's Wind Power Industry

    E-Print Network [OSTI]

    Pedersen, Tom

    Local Content Requirements in British Columbia's Wind Power Industry May Hao, Matt Mackenzie, Alex..................................................................................8 4.1 Current Wind Power Projects

  8. Skeletal muscle biomechanics drives intramuscular transport of locally delivered drugs

    E-Print Network [OSTI]

    Wu, Peter I-Kung

    2007-01-01T23:59:59.000Z

    Introduction: Effective local drug delivery to contractile tissues such as skeletal muscle requires a thorough understanding of the impact of mechanical loads on intramuscular pharmacokinetics. Current preparations for ...

  9. Grid Reliability- An Electric Utility Company's Perspective

    Broader source: Energy.gov [DOE]

    Presentation—given at the Federal Utility Partnership Working Group (FUPWG) Fall 2008 meeting—covers Southern Company's business continuity, North American Electric Reliability Corporation (NERC) cybersecurity, and homeland security as well as physical recovery after a major outage, and five questions to ask your local utility.

  10. System and method to determine electric motor efficiency nonintrusively

    DOE Patents [OSTI]

    Lu, Bin (Kenosha, WI); Habetler, Thomas G. (Snellville, GA); Harley, Ronald G. (Lawrenceville, GA)

    2011-08-30T23:59:59.000Z

    A system and method for nonintrusively determining electric motor efficiency includes a processor programed to, while the motor is in operation, determine a plurality of stator input currents, electrical input data, a rotor speed, a value of stator resistance, and an efficiency of the motor based on the determined rotor speed, the value of stator resistance, the plurality of stator input currents, and the electrical input data. The determination of the rotor speed is based on one of the input power and the plurality of stator input currents. The determination of the value of the stator resistance is based on at least one of a horsepower rating and a combination of the plurality of stator input currents and the electrical input data. The electrical input data includes at least one of an input power and a plurality of stator input voltages.

  11. ECE 438 Electric and Hybrid Vehicles Catalog Description: History of electric traction. Introduction to electric and hybrid-electric

    E-Print Network [OSTI]

    ECE 438 ­ Electric and Hybrid Vehicles Catalog Description: History of electric traction. Introduction to electric and hybrid-electric vehicle configurations. Vehicle mechanics. Energy sources and storage. Range prediction. Motor for HEVs. Electric drive components. Vehicle transmission system. Credits

  12. Control and generation of localized pulses in passively mode-locked semiconductor lasers

    E-Print Network [OSTI]

    Marconi, M; Camelin, P; Chaparro, D; Balle, S; Giudici, M

    2015-01-01T23:59:59.000Z

    We show experimentally and theoretically that localized pulses can be generated from an electrically biased $200\\,\\mu$m multi-transverse mode Vertical-Cavity Surface-Emitting Laser. The device is passively mode-locked using optical feedback from a distant Resonant Saturable Absorber Mirror and it is operated below threshold. We observe multistability between the off solution and a large variety of pulsating solutions with different number and arrangements of pulses per round-trip, thus indicating that the mode-locked pulses are localized, i.e. mutually independent. We show that a modulation of the bias current allows controlling the number of the pulses travelling within the cavity, thus suggesting that our system can be operated as an arbitrary pattern generator of 10 ps pulses and 1 W peak power.

  13. Webinar: Hydrogen Fueling for Current and Anticipated FCEVs

    Broader source: Energy.gov [DOE]

    The Energy Department will present a live webinar titled "Hydrogen Fueling for Current and Anticipated Fuel Cell Electric Vehicles" on Tuesday, June 24, from 12:00 p.m. to 1:00 p.m. Eastern...

  14. Electrically heated DPF start-up strategy

    DOE Patents [OSTI]

    Gonze, Eugene V [Pinckney, MI; Ament, Frank [Troy, MI

    2012-04-10T23:59:59.000Z

    An exhaust system that processes exhaust generated by an engine has a diesel particulate filter (DPF) that is disposed downstream of the engine and that filters particulates in the exhaust. An electrical heater is disposed upstream of the DPF and selectively heats the exhaust to initiate combustion of the particulates. Heat generated by combustion of particulates in the heater induces combustion of particulates within the DPF. A control module selectively enables current flow to the electrical heater for an initial period of a DPF regeneration cycle, and limits exhaust flow while the electrical heater is heating to a predetermined soot combustion temperature.

  15. Crystal growth under external electric fields

    SciTech Connect (OSTI)

    Uda, Satoshi; Koizumi, Haruhiko; Nozawa, Jun; Fujiwara, Kozo [Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577 (Japan)

    2014-10-06T23:59:59.000Z

    This is a review article concerning the crystal growth under external electric fields that has been studied in our lab for the past 10 years. An external field is applied electrostatically either through an electrically insulating phase or a direct injection of an electric current to the solid-interface-liquid. The former changes the chemical potential of both solid and liquid and controls the phase relationship while the latter modifies the transport and partitioning of ionic solutes in the oxide melt during crystallization and changes the solute distribution in the crystal.

  16. Richmond Electric Vehicle Initiative Electric Vehicle Readiness...

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

    The REVi plan addresses the electric vehicle market in Richmond and then addresses a regional plan, policies, and analysis of the the communities readiness. richmondevinitiative....

  17. Richmond Electric Vehicle Initiative Electric Vehicle Readiness...

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

    reflect those of the United States Government or any agency thereof. Richmond Electric Vehicle Initiative Readiness Plan | 1 Table of Contents Executive Summary...

  18. Rotor heating effects from geomagnetic induced currents

    SciTech Connect (OSTI)

    Gish, W.B.; Feero, W.E.; Rockefeller, G.D. (Electric Research and Management, Inc., State College, PA (United States))

    1994-04-01T23:59:59.000Z

    The heating effects at the end-ring connection areas of the rotor due to the harmonic current generation of a saturating unit transformer from geomagnetic induced currents (GIC) on the transmission system have been calculated from observed data and from EMTP studies sponsored by the Electric Power Research Institute. These calculations show that damage may occur during strong GIC storm activity. This damage can occur from unit transformer saturation or other transformers in the system near the generator. The possibility of damage should be monitored during strong GIC storms through the use of appropriate negative sequence current monitoring and alarms.

  19. Financial statistics of major US publicly owned electric utilities 1993

    SciTech Connect (OSTI)

    Not Available

    1995-02-01T23:59:59.000Z

    The 1993 edition of the Financial Statistics of Major U.S. Publicly Owned Electric Utilities publication presents five years (1989 to 1993) of summary financial data and current year detailed financial data on the major publicly owned electric utilities. The objective of the publication is to provide Federal and State governments, industry, and the general public with current and historical data that can be used for policymaking and decision making purposes related to publicly owned electric utility issues. Generator and nongenerator summaries are presented in this publication. The primary source of publicly owned financial data is the Form EIA-412, the Annual Report of Public Electric Utilities, filed on a fiscal basis.

  20. Electrical and Biological Effects of Transmission Lines: A Review.

    SciTech Connect (OSTI)

    Lee, Jack M.

    1989-06-01T23:59:59.000Z

    This review describes the electrical properties of a-c and d-c transmission lines and the resulting effects on plants, animals, and people. Methods used by BPA to mitigate undesirable effects are also discussed. Although much of the information in this review pertains to high-voltage transmission lines, information on distribution lines and electrical appliances is included. The electrical properties discussed are electric and magnetic fields and corona: first for alternating-current (a-c) lines, then for direct current (d-c).

  1. Current measurement apparatus

    DOE Patents [OSTI]

    Umans, Stephen D. (Belmont, MA)

    2008-11-11T23:59:59.000Z

    Apparatus and methods are provided for a system for measurement of a current in a conductor such that the conductor current may be momentarily directed to a current measurement element in order to maintain proper current without significantly increasing an amount of power dissipation attributable to the current measurement element or adding resistance to assist in current measurement. The apparatus and methods described herein are useful in superconducting circuits where it is necessary to monitor current carried by the superconducting elements while minimizing the effects of power dissipation attributable to the current measurement element.

  2. State electricity profiles, March 1999

    SciTech Connect (OSTI)

    NONE

    1999-03-01T23:59:59.000Z

    Due to the role electricity plays in the Nation`s economic and social well-being, interested parties have been following the electric power industry`s transition by keeping abreast of the restructuring and deregulation events that are taking place almost daily. Much of the attention centers around the States and how they are restructuring the business of electricity supply within their respective jurisdictions. This report is designed to profile each State and the District of Columbia regarding not only their current restructuring activities, but also their electricity generation and concomitant statistics from 1986 through 1996. Included are data on a number of subject areas including generating capability, generation, revenues, fuel use, capacity factor for nuclear plants, retail sales, and pollutant emissions. Although the Energy Information Administration (EIA) publishes this type of information, there is a lack of a uniform overview for each individual State. This report is intended to help fill that gap and also to serve as a framework for more detailed studies. In addition to basic statistics in tables and graphs, a textual section is provided for each State, discussing some of the points relative to electricity production that are noteworthy in, or unique to, that particular State. Also, each State is ranked according to the place it holds, as compared to the rest of the states, in various relevant areas, such as its average price of electricity per kilowatthour, its population, and its emissions of certain atmospheric pollutants. The final chapter covers the Nation as a whole. 451 figs., 520 tabs.

  3. Superconducting matrix fault current limiter with current-driven trigger mechanism

    DOE Patents [OSTI]

    Yuan, Xing (Albany, NY)

    2008-04-15T23:59:59.000Z

    A modular and scalable Matrix-type Fault Current Limiter (MFCL) that functions as a "variable impedance" device in an electric power network, using components made of superconducting and non-superconducting electrically conductive materials. An inductor is connected in series with the trigger superconductor in the trigger matrix and physically surrounds the superconductor. The current surge during a fault will generate a trigger magnetic field in the series inductor to cause fast and uniform quenching of the trigger superconductor to significantly reduce burnout risk due to superconductor material non-uniformity.

  4. Direct current uninterruptible power supply method and system

    DOE Patents [OSTI]

    Sinha, Gautam

    2003-12-02T23:59:59.000Z

    A method and system are described for providing a direct current (DC) uninterruptible power supply with the method including, for example: continuously supplying fuel to a turbine; converting mechanical power from the turbine into alternating current (AC) electrical power; converting the AC electrical power to DC power within a predetermined voltage level range; supplying the DC power to a load; and maintaining a DC load voltage within the predetermined voltage level range by adjusting the amount of fuel supplied to the turbine.

  5. Locally Led Conservation The Local Work Group

    E-Print Network [OSTI]

    Grants ­ Conservation Stewardship Program ­ Environmental Quality Incentive Program ­ Farm & Ranch Lands1 Locally Led Conservation & The Local Work Group Mark Habiger NRCS #12;2 What Is "Locally Led Conservation"? · Community Stakeholders ­ 1. Assessing their natural resource conservation needs ­ 2. Setting

  6. ESTIMATING THE ECONOMIC IMPACT OF DISTURBANCES IN THE U.S. ELECTRIC GRID ASSOCIATED WITH

    E-Print Network [OSTI]

    Schrijver, Karel

    , CA 94304, USA (schrijver@lmsal.com, sarah.mitchell@lmco.com) #12;geomagnetic induced currents (GICs), electric grid effects, and the conditions of the electric power grid market [Forbes and St

  7. Policy Overview and Options for Maximizing the Role of Policy in Geothermal Electricity Development

    Broader source: Energy.gov [DOE]

    This report explores the effectiveness of the historical and current body of policies in terms of increased geothermal electricity development. Insights are provided into future policies that may drive the market to optimize development of available geothermal electricity resources.

  8. Method and instrumentation for the measurement and characterization of MEMS fabricated electrical contacts

    E-Print Network [OSTI]

    Read, Melissa B. (Melissa Beth), 1982-

    2010-01-01T23:59:59.000Z

    MEMS fabricated electrical contacts consist of two MEMS fabricated surfaces which are physically separated and brought together for the purpose of carrying current. MEMS fabricated electrical contacts are used in a wide ...

  9. Electrical resistance tomography from measurements inside a steel cased borehole

    DOE Patents [OSTI]

    Daily, William D. (Livermore, CA); Schenkel, Clifford (Walnut Creek, CA); Ramirez, Abelardo L. (Pleasanton, CA)

    2000-01-01T23:59:59.000Z

    Electrical resistance tomography (ERT) produced from measurements taken inside a steel cased borehole. A tomographic inversion of electrical resistance measurements made within a steel casing was then made for the purpose of imaging the electrical resistivity distribution in the formation remotely from the borehole. The ERT method involves combining electrical resistance measurements made inside a steel casing of a borehole to determine the electrical resistivity in the formation adjacent to the borehole; and the inversion of electrical resistance measurements made from a borehole not cased with an electrically conducting casing to determine the electrical resistivity distribution remotely from a borehole. It has been demonstrated that by using these combined techniques, highly accurate current injection and voltage measurements, made at appropriate points within the casing, can be tomographically inverted to yield useful information outside the borehole casing.

  10. Thermal Batteries for Electric Vehicles

    SciTech Connect (OSTI)

    None

    2011-11-21T23:59:59.000Z

    HEATS Project: UT Austin will demonstrate a high-energy density and low-cost thermal storage system that will provide efficient cabin heating and cooling for EVs. Compared to existing HVAC systems powered by electric batteries in EVs, the innovative hot-and-cold thermal batteries-based technology is expected to decrease the manufacturing cost and increase the driving range of next-generation EVs. These thermal batteries can be charged with off-peak electric power together with the electric batteries. Based on innovations in composite materials offering twice the energy density of ice and 10 times the thermal conductivity of water, these thermal batteries are expected to achieve a comparable energy density at 25% of the cost of electric batteries. Moreover, because UT Austin’s thermal energy storage systems are modular, they may be incorporated into the heating and cooling systems in buildings, providing further energy efficiencies and positively impacting the emissions of current building heating/cooling systems.

  11. Can (electric-magnetic) duality be gauged?

    SciTech Connect (OSTI)

    Bunster, Claudio [Centro de Estudios Cientificos (CECS), Casilla 1469, Valdivia (Chile); Max-Planck-Institut fuer Gravitationsphysik (Albert-Einstein-Institut), Muehlenberg 1, D-14476 Potsdam (Germany); Henneaux, Marc [Centro de Estudios Cientificos (CECS), Casilla 1469, Valdivia (Chile); Universite Libre de Bruxelles and International Solvay Institutes, ULB-Campus Plaine CP231, B-1050 Brussels (Belgium); Max-Planck-Institut fuer Gravitationsphysik (Albert-Einstein-Institut), Muehlenberg 1, D-14476 Potsdam (Germany)

    2011-02-15T23:59:59.000Z

    There exists a formulation of the Maxwell theory in terms of two vector potentials, one electric and one magnetic. The action is then manifestly invariant under electric-magnetic duality transformations, which are rotations in the two-dimensional internal space of the two potentials, and local. We ask the question: Can duality be gauged? The only known and battle-tested method of accomplishing the gauging is the Noether procedure. In its decanted form, it amounts to turning on the coupling by deforming the Abelian gauge group of the free theory, out of whose curvatures the action is built, into a non-Abelian group which becomes the gauge group of the resulting theory. In this article, we show that the method cannot be successfully implemented for electric-magnetic duality. We thus conclude that, unless a radically new idea is introduced, electric-magnetic duality cannot be gauged. The implication of this result for supergravity is briefly discussed.

  12. Electricity Today30 American Electric Power, working

    E-Print Network [OSTI]

    Laughlin, Robert B.

    Electricity Today30 American Electric Power, working at the request of, and in partnership with by building transmis- sion infrastructure that will enable wind power to become a larger part of the nation that could provide a basis for discussion to expand industry infrastructure needs in the future. AEP believes

  13. Estimating the Value of Electricity Storage Resources in Electricity...

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

    for understanding the role electricity storage resources (storage) can play in wholesale and retail electricity markets, 2) assessing the value of electricity storage in a...

  14. Assessing Vehicle Electricity Demand Impacts on California Electricity Supply

    E-Print Network [OSTI]

    McCarthy, Ryan W.

    2009-01-01T23:59:59.000Z

    management in the US electricity sector, Energy Policy, 23(deep reductions in electricity sector GHG emissions requireson the electricity sector. 19 Table 3.

  15. Assessing Vehicle Electricity Demand Impacts on California Electricity Supply

    E-Print Network [OSTI]

    McCarthy, Ryan W.

    2009-01-01T23:59:59.000Z

    in Figure 63. Average electricity costs are noticeably lowerprofile has lower average electricity costs, because fossiland generation, average electricity costs, and GHG emissions

  16. Process for electrically interconnecting electrodes

    DOE Patents [OSTI]

    Carey, Paul G. (Mountain View, CA); Thompson, Jesse B. (Brentwood, CA); Colella, Nicolas J. (Livermore, CA); Williams, Kenneth A. (Livermore, CA)

    2002-01-01T23:59:59.000Z

    Electrical interconnects for solar cells or other electronic components using a silver-silicone paste or a lead-tin (Pb--Sn) no-clean fluxless solder cream, whereby the high breakage of thin (<6 mil thick) solar cells using conventional solder interconnect is eliminated. The interconnects of this invention employs copper strips which are secured to the solar cells by a silver-silicone conductive paste which can be used at room temperature, or by a Pb--Sn solder cream which eliminates undesired residue on the active surfaces of the solar cells. Electrical testing using the interconnects of this invention has shown that no degradation of the interconnects developed under high current testing, while providing a very low contact resistance value.

  17. THE n-DISTRIBUTION OF ELECTRONS AND DOUBLE LAYERS IN THE ELECTRON-BEAM-RETURN-CURRENT SYSTEM OF SOLAR FLARES

    SciTech Connect (OSTI)

    Karlicky, Marian, E-mail: karlicky@asu.cas.cz [Astronomical Institute of the Academy of Sciences of the Czech Republic, CZ-25165 Ondrejov (Czech Republic)

    2012-05-01T23:59:59.000Z

    We investigate processes in the electron-beam-return-current system in the impulsive phase of solar flares to answer a question about the formation of the n-electron distribution detected in this phase of solar flares. An evolution of the electron-beam-return-current system with an initial local density depression is studied using a three-dimensional electromagnetic particle-in-cell model. In the system the strong double layer is formed. Its electric field potential increases with the electron beam flux. In this electric field potential, the electrons of background plasma are strongly accelerated and propagate in the return-current direction. The high-energy part of their distribution at the high-potential side of the strong double layer resembles that of the n-distribution. Thus, the detection of the n-distributions, where a form of the high-energy part of the distribution is the most important, can indicate the presence of strong double layers in solar flares. The similarity between processes in solar flare loops and those in the downward current region of the terrestrial aurora, where the double layers were observed by FAST satellite, supports this idea.

  18. Designing electricity transmission auctions

    E-Print Network [OSTI]

    Greve, Thomas; Pollitt, Michael G.

    2012-10-26T23:59:59.000Z

    The UK has ambitious plans for exploiting offshore wind for electricity production in order to meet its challenging target under the EU Renewable Energy Directive. This could involve investing up to 20bn in transmission assets to bring electricity...

  19. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Hand, M. M.

    2012-09-01T23:59:59.000Z

    This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

  20. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Mai, T.

    2012-10-01T23:59:59.000Z

    This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

  1. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Mai, T.

    2012-11-01T23:59:59.000Z

    This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

  2. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Mai, T.

    2013-04-01T23:59:59.000Z

    This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

  3. Electric Efficiency Standard

    Broader source: Energy.gov [DOE]

    In December 2009, the Indiana Utility Regulatory Commission's (IURC) ordered utilities to establish demand-side management (DSM) electric savings goals leading to 2.0% reduction of electricity...

  4. Electrical utilities relay settings

    SciTech Connect (OSTI)

    HACHE, J.M.

    1999-02-24T23:59:59.000Z

    This document contains the Hanford transmission and distribution system relay settings that are under the control of Electrical Utilities.

  5. The Case for Electric Vehicles

    E-Print Network [OSTI]

    Sperling, Daniel

    2001-01-01T23:59:59.000Z

    land Press, 1995 TESTING ELECTRIC VEHICLE DEMAND IN " HYBRIDThe Case for Electric Vehicles DanieI Sperlmg Reprint UCTCor The Case for Electric Vehicles Darnel Sperling Institute

  6. Electric Vehicle Smart Charging Infrastructure

    E-Print Network [OSTI]

    Chung, Ching-Yen

    2014-01-01T23:59:59.000Z

    for Multiplexed Electric Vehicle Charging”, US20130154561A1,Chynoweth, ”Intelligent Electric Vehicle Charging System”,of RFID Mesh Network for Electric Vehicle Smart Charging

  7. Sandia Energy - Resilient Electric Infrastructures

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

    Resilient Electric Infrastructures Home Stationary Power Grid Modernization Resilient Electric Infrastructures Resilient Electric Infrastructuresashoter2015-04-29T22:16:42+00:00...

  8. Electric Turbo Compounding Technology Update

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

    Turbo Compounding Technology Update Electric Turbo Compounding Technology Update 15 August, 2007 Carl Vuk 15 August, 2007 Carl Vuk Electric Turbo Compounding Highlights Electric...

  9. Quarks with Integer Electric Charge

    E-Print Network [OSTI]

    J. LaChapelle

    2015-01-26T23:59:59.000Z

    Within the context of the Standard Model, quarks are placed in a $(\\mathbf{3},\\mathbf{2})\\oplus (\\mathbf{3},\\bar{\\mathbf{2}})$ matter field representation of $U_{EW}(2)$. Although the quarks carry unit intrinsic electric charge in this construction, anomaly cancellation constrains the Lagrangian in such a way that the quarks' associated currents couple to the photon with the usual 2/3 and 1/3 fractional electric charge associated with conventional quarks. The resulting model is identical to the Standard Model in the $SU_C(3)$ sector: However, in the $U_{EW}(2)$ sector it is similar but not necessarily equivalent. Off hand, the model appears to be phenomenologically equivalent to the conventional quark model in the electroweak sector for experimental conditions that preclude observation of individual constituent currents. On the other hand, it is conceivable that detailed analyses for electroweak reactions may reveal discrepancies with the Standard Model in high energy and/or large momentum transfer reactions. The possibility of quarks with integer electric charge strongly suggests the notion that leptons and quarks are merely different manifestations of the same underlying field. A speculative model is proposed in which a phase transition is assumed to occur between $SU_C(3)\\otimes U_{EM}(1)$ and $U_{EM}(1)$ regimes. This immediately; explains the equality of lepton/quark generations and lepton/hadron electric charge, relates neutrino oscillations to quark flavor mixing, reduces the free parameters of the Standard Model, and renders the issue of quark confinement moot.

  10. Project Fever - Fostering Electric Vehicle Expansion in the Rockies

    SciTech Connect (OSTI)

    Swalnick, Natalia

    2013-06-30T23:59:59.000Z

    Project FEVER (Fostering Electric Vehicle Expansion in the Rockies) is a part of the Clean Cities Community Readiness and Planning for Plug-in Electric Vehicles and Charging Infrastructure Funding Opportunity funded by the U.S. Department of Energy (DOE) for the state of Colorado. Tasks undertaken in this project include: Electric Vehicle Grid Impact Assessment; Assessment of Electrical Permitting and Inspection for EV/EVSE (electric vehicle/electric vehicle supply equipment); Assessment of Local Ordinances Pertaining to Installation of Publicly Available EVSE;Assessment of Building Codes for EVSE; EV Demand and Energy/Air Quality Impacts Assessment; State and Local Policy Assessment; EV Grid Impact Minimization Efforts; Unification and Streamlining of Electrical Permitting and Inspection for EV/EVSE; Development of BMP for Local EVSE Ordinances; Development of BMP for Building Codes Pertaining to EVSE; Development of Colorado-Specific Assessment for EV/EVSE Energy/Air Quality Impacts; Development of State and Local Policy Best Practices; Create Final EV/EVSE Readiness Plan; Develop Project Marketing and Communications Elements; Plan and Schedule In-person Education and Outreach Opportunities.

  11. Electrically charged pulsars

    E-Print Network [OSTI]

    M. D. Alloy; D. P. Menezes

    2007-04-24T23:59:59.000Z

    n the present work we investigate one possible variation on the usual electrically neutral pulsars: the inclusion of electric charge. We study the effect of electric charge in pulsars assuming that the charge distribution is proportional to the energy density. All calculations were performed for zero temperature and fixed entropy equations of state.

  12. Renewable Electricity Futures Study

    E-Print Network [OSTI]

    Renewable Electricity Futures Study Executive Summary NREL is a national laboratory of the U for Sustainable Energy, LLC. Volume 2 PDF Volume 3 PDF Volume 1 PDF Volume 4 PDF #12;Renewable Electricity Futures. National Renewable Energy Laboratory Suggested Citations Renewable Electricity Futures Study (Entire Report

  13. Washington State Electric Vehicle

    E-Print Network [OSTI]

    California at Davis, University of

    Washington State Electric Vehicle Implementation Bryan Bazard Maintenance and Alternate Fuel Technology Manager #12;Executive Order 14-04 Requires the procurement of electric vehicles where and equipment with electricity or biofuel to the "extent practicable" by June 2015 1. The vehicle is due

  14. UNDERGRADUATE DEPARTMENT OF ELECTRICAL

    E-Print Network [OSTI]

    Tam, Vincent W. L.

    UNDERGRADUATE HANDBOOK 2008-2009 DEPARTMENT OF ELECTRICAL & ELECTRONIC ENGINEERING #12;Undergraduate Handbook 2008-2009 DEPARTMENT OF ELECTRICAL & ELECTRONIC ENGINEERING THE UNIVERSITY OF HONG KONG © Department of Electrical & Electronic Engineering, The University of Hong Kong #12;Head of Department Prof. Y

  15. ELECTRICAL & COMPUTER ENGINEERING

    E-Print Network [OSTI]

    ELECTRICAL & COMPUTER ENGINEERING SEMINAR "Restoration of Soft X-Ray Laser Images of Nanostructures of Electronic Systems and Information Processing, University of Zagreb, Faculty of Electrical Engineering and Computing. In 1999, he received his Ph.D. in Electrical Engineering from the University of Zagreb. His

  16. ELECTRICAL & COMPUTER ENGINEERING

    E-Print Network [OSTI]

    ELECTRICAL & COMPUTER ENGINEERING SEMINAR "A Random Walk on Image Patches" by Prof. Francois Meyer Electrical, Computer, and Energy Engineering University of Colorado--Boulder Monday, April 2, 2012, 11:00 a a Ph.D. degree in electrical engineering from INRIA, France, in 1993. Meyer worked on the thermonuclear

  17. ELECTRICAL & COMPUTER ENGINEERING

    E-Print Network [OSTI]

    ELECTRICAL & COMPUTER ENGINEERING SEMINAR "Geometry as a Prior in Signal Processing" by Yuejie Chi Electrical Engineering Princeton University Monday, March 19, 2012, 11:00 a.m. Location LSC 210 Abstract processing. Biography: Yuejie Chi is a Ph.D. candidate in Electrical Engineering at Princeton University

  18. Electrical and computer engineering

    E-Print Network [OSTI]

    Berdichevsky, Victor

    Electrical and computer engineering COLLEGE of ENGINEERING DepartmentofElectricalandComputerEngineering engineers for 80 years t Home to nation's first electric-drive vehicle engineering program and alternative-credit EDGE Engineering Entrepreneur Certificate Program is a great addition to an electrical

  19. SEATTLE UNIVERSITY ELECTRICAL ENGINEERING

    E-Print Network [OSTI]

    Carter, John

    SEATTLE UNIVERSITY ELECTRICAL ENGINEERING STUDENT HANDBOOK Eighteenth Edition July 2011 Department of Electrical and Computer Engineering Seattle University 901 12th Avenue P.O. Box 222000 Seattle, WA 98122.seattleu.edu The electrical engineering program is accredited by the Engineering Accreditation Commission of ABET, http

  20. Reduces electric energy consumption

    E-Print Network [OSTI]

    BENEFITS · Reduces electric energy consumption · Reduces peak electric demand · Reduces natural gas consumption · Reduces nonhazardous solid waste and wastewater generation · Potential annual savings products for the automotive industry, electrical equipment, and miscellaneous other uses nationwide. ALCOA

  1. Undergraduate Electrical and

    E-Print Network [OSTI]

    Bristol, University of

    an excellent place to study electrical and electronic engineering. Renewable energies and smart grids are twoUndergraduate Electrical and Electronic Engineering Faculty of Engineering #12;bristol already understood the impact electrical and electronic engineering has on our lives. In fields as diverse

  2. ELECTRIC INFRASTRUCTURE TECHNOLOGY, TRAINING, AND ASSESSMENT PROGRAM

    SciTech Connect (OSTI)

    TREMEL, CHARLES L

    2007-06-28T23:59:59.000Z

    The objective of this Electric Infrastructure Technology, Training and Assessment Program was to enhance the reliability of electricity delivery through engineering integration of real-time technologies for wide-area applications enabling timely monitoring and management of grid operations. The technologies developed, integrated, tested and demonstrated will be incorporated into grid operations to assist in the implementation of performance-based protection/preventive measures into the existing electric utility infrastructure. This proactive approach will provide benefits of reduced cost and improved reliability over the typical schedule-based and as needed maintenance programs currently performed by utilities. Historically, utilities have relied on maintenance and inspection programs to diagnose equipment failures and have used the limited circuit isolation devices, such as distribution main circuit breakers to identify abnormal system performance. With respect to reliable problem identification, customer calls to utility service centers are often the sole means for utilities to identify problem occurrences and determine restoration methodologies. Furthermore, monitoring and control functions of equipment and circuits are lacking; thus preventing timely detection and response to customer outages. Finally, the two-way flow of real-time system information is deficient, depriving decision makers of key information required to effectively manage and control current electric grid demands to provide reliable customer service in abnormal situations. This Program focused on advancing technologies and the engineering integration required to incorporate them into the electric grid operations to enhance electrical system reliability and reduce utility operating costs.

  3. Electrical Generation for More-Electric Aircraft using Solid...

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

    DE-AC05-76RL01830 Electrical Generation for More-Electric Aircraft using Solid Oxide Fuel Cells GA Whyatt LA Chick April 2012 PNNL-XXXXX Electrical Generation for More- Electric...

  4. A complete electrical hazard classification system and its application

    SciTech Connect (OSTI)

    Gordon, Lloyd B [Los Alamos National Laboratory; Cartelli, Laura [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    The Standard for Electrical Safety in the Workplace, NFPA 70E, and relevant OSHA electrical safety standards evolved to address the hazards of 60-Hz power that are faced primarily by electricians, linemen, and others performing facility and utility work. This leaves a substantial gap in the management of electrical hazards in Research and Development (R&D) and specialized high voltage and high power equipment. Examples include lasers, accelerators, capacitor banks, electroplating systems, induction and dielectric heating systems, etc. Although all such systems are fed by 50/60 Hz alternating current (ac) power, we find substantial use of direct current (dc) electrical energy, and the use of capacitors, inductors, batteries, and radiofrequency (RF) power. The electrical hazards of these forms of electricity and their systems are different than for 50160 Hz power. Over the past 10 years there has been an effort to develop a method of classifying all of the electrical hazards found in all types of R&D and utilization equipment. Examples of the variation of these hazards from NFPA 70E include (a) high voltage can be harmless, if the available current is sufficiently low, (b) low voltage can be harmful if the available current/power is high, (c) high voltage capacitor hazards are unique and include severe reflex action, affects on the heart, and tissue damage, and (d) arc flash hazard analysis for dc and capacitor systems are not provided in existing standards. This work has led to a comprehensive electrical hazard classification system that is based on various research conducted over the past 100 years, on analysis of such systems in R&D, and on decades of experience. Initially, national electrical safety codes required the qualified worker only to know the source voltage to determine the shock hazard. Later, as arc flash hazards were understood, the fault current and clearing time were needed. These items are still insufficient to fully characterize all types of electrical hazards. The new comprehensive electrical hazard classification system uses a combination of voltage, shock current available, fault current available, power, energy, and waveform to classify all forms of electrical hazards. Based on this electrical hazard classification system, many new tools have been developed, including (a) work controls for these hazards, (b) better selection of PPE for R&D work, (c) improved training, and (d) a new Severity Ranking Tool that is used to rank electrical accidents and incidents with various forms of electrical energy.

  5. Electric Field Control of Local Ferromagnetism with a Magnetoelectric

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField Campaign:INEAWater Use Goal 4: Efficient WaterMultiferroic

  6. Electric Field Control of Local Ferromagnetism with a Magnetoelectric

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField Campaign:INEAWater Use Goal 4: Efficient

  7. Electric Field Control of Local Ferromagnetism with a Magnetoelectric

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField Campaign:INEAWater Use Goal 4: EfficientMultiferroic

  8. Jilin Province Local Water Electricity Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup | OpenHunanInformationJamesManufacturingJiaxingJidongJilin Province

  9. Electric Field Control of Local Ferromagnetism with a Magnetoelectric

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract ManagementDiscoveringESnetEffective safety4/2012

  10. Electric Field Control of Local Ferromagnetism with a Magnetoelectric

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract ManagementDiscoveringESnetEffective safety4/2012Multiferroic

  11. Financial statistics of selected investor-owned electric utilities, 1989

    SciTech Connect (OSTI)

    Not Available

    1991-01-01T23:59:59.000Z

    The Financial Statistics of Selected Investor-Owned Electric Utilities publication presents summary and detailed financial accounting data on the investor-owned electric utilities. The objective of the publication is to provide the Federal and State governments, industry, and the general public with current and historical data that can be used for policymaking and decisionmaking purposes related to investor-owned electric utility issues.

  12. 1992 annual report of the North American Electric Reliability Council

    SciTech Connect (OSTI)

    Not Available

    1992-01-01T23:59:59.000Z

    This report describes the operation and concerns of the North American Electric Reliability Council and contains contributions from each of its member regional councils concerning reliability of electric power in their representative areas. The topics of the reports include current and future electric system reliability, regional monitoring, planning, telecommunications, the generating availability data system, technical services available, installed capacity changes, equipment changes, unusual events, hurricane Andrew, and ice storms.

  13. ELECTRICAL CONDUCTIVITY OF THE DEEP MANTLE

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    's magnetic field observed at permanent geomagnetic observatories, at temporary locations, measured from ships geomagnetic field induce electrical currents in the Earth's crust and mantle (Farraday's law) the induced of geomagnetic field Magnetosphere Ionosphere Use of observatory and satellite data for induction studies Recent

  14. Economic Realities and Energy Efficient Polyphase Integral Horsepower Electric Motors

    E-Print Network [OSTI]

    Whittington, B. W.

    1980-01-01T23:59:59.000Z

    Energy efficient polyphase integral horsepower electric motors are currently being vigorously promoted as a profitable method of conserving energy in many industrial and commercial applications. While the goal to be attained is indeed laudable...

  15. The Market Value and Cost of Solar Photovoltaic Electricity Production

    E-Print Network [OSTI]

    Borenstein, Severin

    2008-01-01T23:59:59.000Z

    the premium value of solar PV power to 0%-20% again. Whilepower to that location. While few dispute that the direct cost of electricity from the currently available solar

  16. Electrical ship demand modeling for future generation warships

    E-Print Network [OSTI]

    Sievenpiper, Bartholomew J. (Bartholomew Jay)

    2013-01-01T23:59:59.000Z

    The design of future warships will require increased reliance on accurate prediction of electrical demand as the shipboard consumption continues to rise. Current US Navy policy, codified in design standards, dictates methods ...

  17. The Role of Electricity Pricing Policy in Industrial Siting Decisions

    E-Print Network [OSTI]

    Tam, C. S.

    1981-01-01T23:59:59.000Z

    policy of electricity plays a significant role in the siting decisions of energy intensive industries, it is therefore imperative for the policy makers to understand the long term impact of their policies. This paper will examine the current pricing...

  18. Energy storage for frequency regulation on the electric grid

    E-Print Network [OSTI]

    Leitermann, Olivia

    2012-01-01T23:59:59.000Z

    Ancillary services such as frequency regulation are required for reliable operation of the electric grid. Currently, the same traditional thermal generators that supply bulk power also perform nearly all frequency regulation. ...

  19. Electrical contact arrangement for a coating process

    DOE Patents [OSTI]

    Kabagambe, Benjamin; McCamy, James W; Boyd, Donald W

    2013-09-17T23:59:59.000Z

    A protective coating is applied to the electrically conductive surface of a reflective coating of a solar mirror by biasing a conductive member having a layer of a malleable electrically conductive material, e.g. a paste, against a portion of the conductive surface while moving an electrodepositable coating composition over the conductive surface. The moving of the electrodepositable coating composition over the conductive surface includes moving the solar mirror through a flow curtain of the electrodepositable coating composition and submerging the solar mirror in a pool of the electrodepositable coating composition. The use of the layer of a malleable electrically conductive material between the conductive member and the conductive surface compensates for irregularities in the conductive surface being contacted during the coating process thereby reducing the current density at the electrical contact area.

  20. The Maine Coastal Current: Spring Climatological Circulation

    E-Print Network [OSTI]

    on the Coastal Current. The nested calculations also expose finer structure due to river sources, heat flux, river discharges) and remote (Gulf­scale) forcing are examined. Tidal rectification in the Eastern Gulf; otherwise unreal­ istic exchanges with the Gulf occur. An approximate division of local and remote dynamical

  1. Global Change: Solutions? Combating climate change is local

    E-Print Network [OSTI]

    Schweik, Charles M.

    5% annual finance charge #12;Alternative Energy: Solar Photovoltaic Energy companies are targeting;Alternative Energy: Solar Photovoltaic Current electricity costs Cost of solar averaged over 20 years Includes residential and commercial buildings #12;Household Electricity: Solar Thermal ~5-10 year payback time #12

  2. FY 2014 Budget Request for the Office of Electricity Delivery and Energy Reliability

    Broader source: Energy.gov [DOE]

    Table showing the FY 2012 Current Appropriation, the FY 2013 Annualized Continuing Resolution, and the FY 2014 Congressional Request for the Office of Electricity Delivery and Energy Reliability.

  3. Electricity Prices in Transition (released in AEO2007)

    Reports and Publications (EIA)

    2007-01-01T23:59:59.000Z

    The push by some states to restructure electricity markets progressed rapidly throughout the late 1990s. Although the energy crisis in California during 2000 and 2001 slowed the momentum, 19 states and the District of Columbia currently have some form of restructuring in place. In addition, Washington State, which has not restructured its electricity market, allows its largest industrial customers to choose their suppliers.

  4. Electricity Restructuring: Deregulation or Reregulation?

    E-Print Network [OSTI]

    Borenstein, Severin; Bushnell, James

    2000-01-01T23:59:59.000Z

    14 Electricity Restructuring: Deregulation or Reregulation?be, synonymous with deregulation. Forthcoming in Regulation,Electricity Restructuring: Deregulation or Reregulation?

  5. Understanding the Environmental Impacts of Electricity: Product Labeling and Certification

    SciTech Connect (OSTI)

    Bird, L.

    2003-01-01T23:59:59.000Z

    Electricity consumers are increasingly gaining the ability to choose among power options from either their current electric utilities or from alternative power providers. In order to help consumers make informed decisions about their electricity purchases and to compare alternatives, many states are requiring electricity providers to disclose information regarding the fuel sources used to generate electricity and the associated environmental impacts. Like nutrition labels, environmental disclosure labels present the content or sources of electricity and are typically included with electricity bills and in product offers. These labels allow consumers to compare the environmental impacts of standard and cleaner power options, which are typically available. This paper discusses clean, green power options available to power purchasers and the tools and information that can be used to make more sustainable power purchase decisions.

  6. Wind energy as a significant source of electricity

    SciTech Connect (OSTI)

    Nix, R.G.

    1995-01-01T23:59:59.000Z

    Wind energy is a commercially available renewable energy source, with state-of-the-art wind plants producing electricity at about $0.05 per kWh. However, even at that production cost, wind-generated electricity is not yet fully cost-competitive with coal- or natural-gas-produced electricity for the bulk electricity market. The wind is a proven energy source; it is not resource-limited in the US, and there are no insolvable technical constraints. This paper describes current and historical technology, characterizes existing trends, and describes the research and development required to reduce the cost of wind-generated electricity to full competitiveness with fossil-fuel-generated electricity for the bulk electricity market. Potential markets are described.

  7. Numerical upscaling for the eddy-current model with stochastic magnetic materials

    SciTech Connect (OSTI)

    Eberhard, Jens P. [Computer Simulation Technology, Bad Nauheimer Strasse, 19, D-64289 Darmstadt (Germany)], E-mail: jens.eberhard@cst.com; Popovic, Dan [Simulation in Technology, University of Heidelberg, Im Neuenheimer Feld 368, D-69120 Heidelberg (Germany)], E-mail: dan.popovic@stud.uni-heidelberg.de; Wittum, Gabriel [Simulation in Technology, University of Heidelberg, Im Neuenheimer Feld 368, D-69120 Heidelberg (Germany)], E-mail: wittum@uni-hd.de

    2008-04-01T23:59:59.000Z

    This paper deals with the upscaling of the time-harmonic Maxwell equations for heterogeneous media. We analyze the eddy-current approximation of Maxwell's equations to describe the electric field for heterogeneous, isotropic magnetic materials. The magnetic permeability of the materials is assumed to have random heterogeneities described by a Gaussian random field. We apply the so-called Coarse Graining method to develop a numerical upscaling of the eddy-current model. The upscaling uses filtering and averaging procedures in Fourier space which results in a formulation of the eddy-current model on coarser resolution scales where the influence of sub-scale fluctuations is modeled by effective scale- and space-dependent reluctivity tensors. The effective reluctivity tensors can be obtained by solving local partial differential equations which contain a Laplacian as well as a curl-curl operator. We present a computational method how the equation of the combined operators can be discretized and solved numerically using an extended variational formulation compared to standard discretizations. We compare the results of the numerical upscaling of the eddy-current model with theoretical results of Eberhard [J.P. Eberhard, Upscaling for the time-harmonic Maxwell equations with heterogeneous magnetic materials, Physical Review E 72 (3), (2005)] and obtain a very good agreement.

  8. The challenges and policy options for integrating plug-in hybrid electric vehicle into the electric grid

    SciTech Connect (OSTI)

    Srivastava, Anurag K.; Annabathina, Bharath; Kamalasadan, Sukumar

    2010-04-15T23:59:59.000Z

    Plug-in hybrid electric vehicle may be prime candidates for the next generation of vehicles, but they offer several technological and economical challenges. This article assesses current progress in PHEV technology, market trends, research needs, challenges ahead and policy options for integrating PHEVs into the electric grid. (author)

  9. A pulser for medium-frequency modulated direct-current reactive sputter deposition of insulators

    E-Print Network [OSTI]

    Cao, Hui

    for medium-frequency modulated direct-current dc reactive sputter deposition of electrical insulators at the target surface inherent to high- deposition-rate reactive sputtering of electrical insulators. TypicallyA pulser for medium-frequency modulated direct-current reactive sputter deposition of insulators G

  10. Current and lattice matched tandem solar cell

    DOE Patents [OSTI]

    Olson, Jerry M. (Lakewood, CO)

    1987-01-01T23:59:59.000Z

    A multijunction (cascade) tandem photovoltaic solar cell device is fabricated of a Ga.sub.x In.sub.1-x P (0.505.ltoreq.X.ltoreq.0.515) top cell semiconductor lattice matched to a GaAs bottom cell semiconductor at a low-resistance heterojunction, preferably a p+/n+ heterojunction between the cells. The top and bottom cells are both lattice matched and current matched for high efficiency solar radiation conversion to electrical energy.

  11. Fast Solver for Large Scale Eddy Current Non-Destructive Evaluation Problems

    E-Print Network [OSTI]

    Fast Solver for Large Scale Eddy Current Non-Destructive Evaluation Problems Naiguang Lei Advisor: Lalita Udpa Thursday, July 31st, 2014 9:00-11:00am, EB2219 Abstract Eddy current testing plays a very, an alternating magnetic field source generates induced currents, called eddy currents, in an electrically

  12. Eddy-current interaction with an ideal crack. I. The forward problem J. R. Bowler

    E-Print Network [OSTI]

    Bowler, John R.

    Eddy-current interaction with an ideal crack. I. The forward problem J. R. Bowler The University February 1994) The impedance of an eddy-current probe changes when the current it induces in an electrical to introduce idealizations about the nature of the flaw. Eddy-current interaction is considered with an ideal

  13. System and method employing a minimum distance and a load feature database to identify electric load types of different electric loads

    DOE Patents [OSTI]

    Lu, Bin; Yang, Yi; Sharma, Santosh K; Zambare, Prachi; Madane, Mayura A

    2014-12-23T23:59:59.000Z

    A method identifies electric load types of a plurality of different electric loads. The method includes providing a load feature database of a plurality of different electric load types, each of the different electric load types including a first load feature vector having at least four different load features; sensing a voltage signal and a current signal for each of the different electric loads; determining a second load feature vector comprising at least four different load features from the sensed voltage signal and the sensed current signal for a corresponding one of the different electric loads; and identifying by a processor one of the different electric load types by determining a minimum distance of the second load feature vector to the first load feature vector of the different electric load types of the load feature database.

  14. Electric power monthly

    SciTech Connect (OSTI)

    NONE

    1995-08-01T23:59:59.000Z

    The Energy Information Administration (EIA) prepares the Electric Power Monthly (EPM) for a wide audience including Congress, Federal and State agencies, the electric utility industry, and the general public. This publication provides monthly statistics for net generation, fossil fuel consumption and stocks, quantity and quality of fossil fuels, cost of fossil fuels, electricity sales, revenue, and average revenue per kilowatthour of electricity sold. Data on net generation, fuel consumption, fuel stocks, quantity and cost of fossil fuels are also displayed for the North American Electric Reliability Council (NERC) regions. The EIA publishes statistics in the EPM on net generation by energy source, consumption, stocks, quantity, quality, and cost of fossil fuels; and capability of new generating units by company and plant. The purpose of this publication is to provide energy decisionmakers with accurate and timely information that may be used in forming various perspectives on electric issues that lie ahead.

  15. Integrated electrical connector

    DOE Patents [OSTI]

    Benett, William J.; Ackler, Harold D.

    2005-05-24T23:59:59.000Z

    An electrical connector is formed from a sheet of electrically conductive material that lies in between the two layers of nonconducting material that comprise the casing of an electrical chip. The connector is electrically connected to an electrical element embedded within the chip. An opening in the sheet is concentrically aligned with a pair of larger holes respectively bored through the nonconducting layers. The opening is also smaller than the diameter of an electrically conductive contact pin. However, the sheet is composed flexible material so that the opening adapts to the diameter of the pin when the pin is inserted therethrough. The periphery of the opening applies force to the sides of the pin when the pin is inserted, and thus holds the pin within the opening and in contact with the sheet, by friction. The pin can be withdrawn from the connector by applying sufficient axial force.

  16. Electrical system architecture

    DOE Patents [OSTI]

    Algrain, Marcelo C. (Peoria, IL); Johnson, Kris W. (Washington, IL); Akasam, Sivaprasad (Peoria, IL); Hoff, Brian D. (East Peoria, IL)

    2008-07-15T23:59:59.000Z

    An electrical system for a vehicle includes a first power source generating a first voltage level, the first power source being in electrical communication with a first bus. A second power source generates a second voltage level greater than the first voltage level, the second power source being in electrical communication with a second bus. A starter generator may be configured to provide power to at least one of the first bus and the second bus, and at least one additional power source may be configured to provide power to at least one of the first bus and the second bus. The electrical system also includes at least one power consumer in electrical communication with the first bus and at least one power consumer in electrical communication with the second bus.

  17. System for detecting and limiting electrical ground faults within electrical devices

    DOE Patents [OSTI]

    Gaubatz, Donald C. (Cupertino, CA)

    1990-01-01T23:59:59.000Z

    An electrical ground fault detection and limitation system for employment with a nuclear reactor utilizing a liquid metal coolant. Elongate electromagnetic pumps submerged within the liquid metal coolant and electrical support equipment experiencing an insulation breakdown occasion the development of electrical ground fault current. Without some form of detection and control, these currents may build to damaging power levels to expose the pump drive components to liquid metal coolant such as sodium with resultant undesirable secondary effects. Such electrical ground fault currents are detected and controlled through the employment of an isolated power input to the pumps and with the use of a ground fault control conductor providing a direct return path from the affected components to the power source. By incorporating a resistance arrangement with the ground fault control conductor, the amount of fault current permitted to flow may be regulated to the extent that the reactor may remain in operation until maintenance may be performed, notwithstanding the existence of the fault. Monitors such as synchronous demodulators may be employed to identify and evaluate fault currents for each phase of a polyphase power, and control input to the submerged pump and associated support equipment.

  18. Quantum pumping of valley current in strain engineered graphene

    SciTech Connect (OSTI)

    Wang, Jing [Department of Physics, University of Science and Technology of China, Hefei (China) [Department of Physics, University of Science and Technology of China, Hefei (China); Department of Physics and Materials Science and Centre for Functional Photonics, City University of Hong Kong, Hong Kong and City University of Hong Kong Shenzhen Research Institute, Shenzhen (China); Chan, K. S., E-mail: apkschan@cityu.edu.hk, E-mail: zjlin@ustc.edu.cn [Department of Physics and Materials Science and Centre for Functional Photonics, City University of Hong Kong, Hong Kong and City University of Hong Kong Shenzhen Research Institute, Shenzhen (China); Lin, Zijing, E-mail: apkschan@cityu.edu.hk, E-mail: zjlin@ustc.edu.cn [Department of Physics, University of Science and Technology of China, Hefei (China)] [Department of Physics, University of Science and Technology of China, Hefei (China)

    2014-01-06T23:59:59.000Z

    We studied the generation of valley dependent current by adiabatic quantum pumping in monolayer graphene in the presence of electric potential barriers, ferromagnetic field and strain. The pumped currents in the two valleys have same magnitudes and opposite directions; thus, a pure valley current is generated. The oscillation of the pumped pure valley current is determined by the Fabry-Perot resonances formed in the structure. In our calculation, the pumped pure valley current can be as high as 50?nA, which is measurable using present technologies. The proposed device is useful for the development of graphene valleytronic devices.

  19. High Critical Current Coated Conductors

    SciTech Connect (OSTI)

    Paranthaman, M. P.; Selvamanickam, V. (SuperPower, Inc.)

    2011-12-27T23:59:59.000Z

    One of the important critical needs that came out of the DOE’s coated conductor workshop was to develop a high throughput and economic deposition process for YBCO. Metal-organic chemical vapor deposition (MOCVD) technique, the most critical steps in high technical micro fabrications, has been widely employed in semiconductor industry for various thin film growth. SuperPower has demonstrated that (Y,Gd)BCO films can be deposited rapid with world record performance. In addition to high critical current density with increased film thickness, flux pinning properties of REBCO films needs to be improved to meet the DOE requirements for various electric-power equipments. We have shown that doping with Zr can result in BZO nanocolumns, but at substantially reduced deposition rate. The primary purpose of this subtask is to develop high current density MOCVD-REBCO coated conductors based on the ion-beam assisted (IBAD)-MgO deposition process. Another purpose of this subtask is to investigate HTS conductor design optimization (maximize Je) with emphasis on stability and protection issues, and ac loss for REBCO coated conductors.

  20. Energy 101: Electric Vehicles

    Office of Energy Efficiency and Renewable Energy (EERE)

    This edition of Energy 101 highlights the benefits of electric vehicles, including improved fuel efficiency, reduced emissions, and lower maintenance costs.

  1. Electrically Deformable Liquid Marbles

    E-Print Network [OSTI]

    Edward Bormashenko; Roman Pogreb; Tamir Stein; Gene Whyman; Marcelo Schiffer; Doron Aurbach

    2011-02-17T23:59:59.000Z

    Liquid marbles, which are droplets coated with a hydrophobic powder, were exposed to a uniform electric field. It was established that a threshold value of the electric field, 15 cgse, should be surmounted for deformation of liquid marbles. The shape of the marbles was described as a prolate spheroid. The semi-quantitative theory describing deformation of liquid marbles in a uniform electric field is presented. The scaling law relating the radius of the contact area of the marble to the applied electric field shows a satisfactory agreement with the experimental data.

  2. Electric Utility Industry Update

    Broader source: Energy.gov [DOE]

    Presentation—given at the April 2012 Federal Utility Partnership Working Group (FUPWG) meeting—covers significant electric industry trends and industry priorities with federal customers.

  3. Electric power annual 1992

    SciTech Connect (OSTI)

    Not Available

    1994-01-06T23:59:59.000Z

    The Electric Power Annual presents a summary of electric utility statistics at national, regional and State levels. The objective of the publication is to provide industry decisionmakers, government policymakers, analysts and the general public with historical data that may be used in understanding US electricity markets. The Electric Power Annual is prepared by the Survey Management Division; Office of Coal, Nuclear, Electric and Alternate Fuels; Energy Information Administration (EIA); US Department of Energy. ``The US Electric Power Industry at a Glance`` section presents a profile of the electric power industry ownership and performance, and a review of key statistics for the year. Subsequent sections present data on generating capability, including proposed capability additions; net generation; fossil-fuel statistics; retail sales; revenue; financial statistics; environmental statistics; electric power transactions; demand-side management; and nonutility power producers. In addition, the appendices provide supplemental data on major disturbances and unusual occurrences in US electricity power systems. Each section contains related text and tables and refers the reader to the appropriate publication that contains more detailed data on the subject matter. Monetary values in this publication are expressed in nominal terms.

  4. 2012 National Electricity Forum

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

    in your area, what are its consequences in terms of reliability, resource options, wholesale competition and market power, cost of electricity to consumers, environmental...

  5. Joint Electrical Utilities (Iowa)

    Broader source: Energy.gov [DOE]

    Cities may establish utilities to acquire existing electric generating facilities or distribution systems. Acquisition, in this statute, is defined as city involvement, and includes purchase, lease...

  6. Integrating Electricity Subsector

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

    2013 Electric Power Research Institute, Inc. All rights reserved. This publication is a corporate document that should be cited in the literature in the following manner:...

  7. Electric Transmission Lines (Nebraska)

    Broader source: Energy.gov [DOE]

    The Public Service Commission has jurisdiction over all electricity transmission lines crossing over or under railroad tracks at public highway crossings. This section contains general regulations...

  8. Electrically conductive cellulose composite

    DOE Patents [OSTI]

    Evans, Barbara R.; O'Neill, Hugh M.; Woodward, Jonathan

    2010-05-04T23:59:59.000Z

    An electrically conductive cellulose composite includes a cellulose matrix and an electrically conductive carbonaceous material incorporated into the cellulose matrix. The electrical conductivity of the cellulose composite is at least 10 .mu.S/cm at 25.degree. C. The composite can be made by incorporating the electrically conductive carbonaceous material into a culture medium with a cellulose-producing organism, such as Gluconoacetobacter hansenii. The composites can be used to form electrodes, such as for use in membrane electrode assemblies for fuel cells.

  9. Electrical Circuit Tester

    DOE Patents [OSTI]

    Love, Frank (Amarillo, TX)

    2006-04-18T23:59:59.000Z

    An electrical circuit testing device is provided, comprising a case, a digital voltage level testing circuit with a display means, a switch to initiate measurement using the device, a non-shorting switching means for selecting pre-determined electrical wiring configurations to be tested in an outlet, a terminal block, a five-pole electrical plug mounted on the case surface and a set of adapters that can be used for various multiple-pronged electrical outlet configurations for voltages from 100 600 VAC from 50 100 Hz.

  10. Electricity Monthly Update

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

    Electricity Monthly Update Explained Highlights The Highlights page features in the center a short article about a major event or an informative topic. The left column contains...

  11. User Electrical Equipment Inspections

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

    user electronics that are not tested by a Nationally Recognized Testing Laboratory (NRTL). This includes any type of non-commercial, home-built electronic and electrical...

  12. Electricity Monthly Update

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

    Percentage Btu Region map map showing electricity regions The chart above compares coal consumption in March 2014 and March 2015 by region and shows that coal consumption for...

  13. Electricity Monthly Update

    Gasoline and Diesel Fuel Update (EIA)

    a whole. Regional Wholesale Markets The fourth section presents data on the market making systems in the electric power sector: wholesale markets. It is not possible to show...

  14. Electricity | Department of Energy

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

    between two of history's most important energy-related engineers: Thomas Edison and Nikola Tesla. Edison and Tesla's developments in electric power generation and...

  15. Perforation patterned electrical interconnects

    DOE Patents [OSTI]

    Frey, Jonathan

    2014-01-28T23:59:59.000Z

    This disclosure describes systems and methods for increasing the usable surface area of electrical contacts within a device, such as a thin film solid state device, through the implementation of electrically conductive interconnects. Embodiments described herein include the use of a plurality of electrically conductive interconnects that penetrate through a top contact layer, through one or more multiple layers, and into a bottom contact layer. The plurality of conductive interconnects may form horizontal and vertical cross-sectional patterns. The use of lasers to form the plurality of electrically conductive interconnects from reflowed layer material further aids in the manufacturing process of a device.

  16. Axion Induced Oscillating Electric Dipole Moments

    E-Print Network [OSTI]

    Christopher T. Hill

    2015-04-10T23:59:59.000Z

    The axion electromagnetic anomaly induces an oscillating electric dipole for {\\em any} static magnetic dipole. Static electric dipoles do not produce oscillating magnetic moments. This is a low energy theorem which is a consequence of the space-time dependent cosmic background field of the axion in the limit that it is only locally time dependent $(\\overrightarrow{\\beta}=0)$. The electron will acquire an oscillating electric dipole of frequency $m_a$ and strength $\\sim 10^{-32}$ e-cm, three orders of magnitude above the nucleon, and within four orders of magnitude of the present standard model DC limit. This may suggest sensitive new experimental venues for the axion dark matter search.

  17. Current Trends in

    E-Print Network [OSTI]

    Zanibbi, Richard

    in the industry, with a focus on local telephone companies and their customers. My thesis is that the big fish will eat the little fish, but enough fish will survive to provide more and better services at lower prices

  18. Thermal to electricity conversion using thermal magnetic properties

    DOE Patents [OSTI]

    West, Phillip B [Idaho Falls, ID; Svoboda, John [Idaho Falls, ID

    2010-04-27T23:59:59.000Z

    A system for the generation of Electricity from Thermal Energy using the thermal magnetic properties of a Ferromagnetic, Electrically Conductive Material (FECM) in one or more Magnetic Fields. A FECM is exposed to one or more Magnetic Fields. Thermal Energy is applied to a portion of the FECM heating the FECM above its Curie Point. The FECM, now partially paramagnetic, moves under the force of the one or more Magnetic Fields. The movement of the FECM induces an electrical current through the FECM, generating Electricity.

  19. Direct-current-like Phase Space Manipulation Using Chirped Alternating Current Fields

    SciTech Connect (OSTI)

    P.F. Schmit and N.J. Fisch

    2010-02-01T23:59:59.000Z

    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. Whereas wave-particle acceleration mechanisms have been widely discussed in the literature, this work discusses the direct analogy between wave acceleration and dc field acceleration in a particular parameter regime explored in previous works. Apart from the academic interest of this correspondence, there may be practical advantages in using waves to mimic dc electric fields, for example, in driving plasma current with high efficiency.

  20. Electric and Hybrid Vehicle Technology: TOPTEC

    SciTech Connect (OSTI)

    Not Available

    1992-01-01T23:59:59.000Z

    Today, growing awareness of environmental and energy issues associated with the automobile has resulted in renewed interest in the electric vehicle. In recognition of this, the Society of Automotive Engineers has added a TOPTEC on electric vehicles to the series of technical symposia focused on key issues currently facing industry and government. This workshop on the Electric and Hybrid Vehicle provides an opportunity to learn about recent progress in these rapidly changing technologies. Research and development of both the vehicle and battery system has accelerated sharply and in fact, the improved technologies of the powertrain system make the performance of today's electric vehicle quite comparable to the equivalent gasoline vehicle, with the exception of driving range between refueling'' stops. Also, since there is no tailpipe emission, the electric vehicle meets the definition of Zero Emission Vehicle: embodied in recent air quality regulations. The discussion forum will include a review of the advantages and limitations of electric vehicles, where the technologies are today and where they need to be in order to get to production level vehicles, and the service and maintenance requirements once they get to the road. There will be a major focus on the status of battery technologies, the various approaches to recharge of the battery systems and the activities currently underway for developing standards throughout the vehicle and infrastructure system. Intermingled in all of this technology discussion will be a view of the new relationships emerging between the auto industry, the utilities, and government. Since the electric vehicle and its support system will be the most radical change ever introduced into the private vehicle sector of the transportation system, success in the market requires an understanding of the role of all of the partners, as well as the new technologies involved.

  1. Electric and Hybrid Vehicle Technology: TOPTEC

    SciTech Connect (OSTI)

    Not Available

    1992-12-01T23:59:59.000Z

    Today, growing awareness of environmental and energy issues associated with the automobile has resulted in renewed interest in the electric vehicle. In recognition of this, the Society of Automotive Engineers has added a TOPTEC on electric vehicles to the series of technical symposia focused on key issues currently facing industry and government. This workshop on the Electric and Hybrid Vehicle provides an opportunity to learn about recent progress in these rapidly changing technologies. Research and development of both the vehicle and battery system has accelerated sharply and in fact, the improved technologies of the powertrain system make the performance of today`s electric vehicle quite comparable to the equivalent gasoline vehicle, with the exception of driving range between ``refueling`` stops. Also, since there is no tailpipe emission, the electric vehicle meets the definition of ``Zero Emission Vehicle: embodied in recent air quality regulations. The discussion forum will include a review of the advantages and limitations of electric vehicles, where the technologies are today and where they need to be in order to get to production level vehicles, and the service and maintenance requirements once they get to the road. There will be a major focus on the status of battery technologies, the various approaches to recharge of the battery systems and the activities currently underway for developing standards throughout the vehicle and infrastructure system. Intermingled in all of this technology discussion will be a view of the new relationships emerging between the auto industry, the utilities, and government. Since the electric vehicle and its support system will be the most radical change ever introduced into the private vehicle sector of the transportation system, success in the market requires an understanding of the role of all of the partners, as well as the new technologies involved.

  2. Possible observables for the chiral electric separation effect in Cu + Au collisions

    E-Print Network [OSTI]

    Guo-Liang Ma; Xu-Guang Huang

    2015-05-21T23:59:59.000Z

    The quark-gluon plasma (QGP) generated in relativistic heavy-ion collisions could be locally parity-odd. In parity-odd QGP, the electric field may induce a chiral current which is called the chiral electric separation effect (CESE). We propose two possible observables for CESE in Cu + Au collisions: The first one is the correlation $\\zeta_{\\alpha\\beta}=\\langle \\cos[2(\\phi_\\alpha+\\phi_\\beta-2\\Psi_{\\rm RP})]\\rangle$; the second one is the charge-dependent event-plane angle $\\Psi^{q}_2$ with $q=\\pm$ being charge. Nonzero $\\Delta\\zeta=\\zeta_{opp}-\\zeta_{same}$ and $\\Delta\\Psi=\\langle|\\Psi_2^+-\\Psi_2^-|\\rangle$ may signal the CESE in Cu + Au collisions. Within a multiphase transport model, we study how the final state interaction affects these observables. We find that the correlation $\\gamma_{\\alpha\\beta}=\\langle\\cos(\\phi_{\\alpha}+\\phi_{\\beta}-\\Psi_{\\rm RP})\\rangle$ is sensitive to the out-of-plane charge separation caused by the chiral magnetic effect and to the in-plane charge separation caused by the in-plane electric field, but it is not sensitive to the CESE. On the other hand, $\\Delta\\zeta$ and $\\Delta\\Psi$ are sensitive to the CESE. Therefore, we suggest that the future experiments measure the above observables in Cu+Au collisions in order to disentangle different chiral and charge separation mechanisms.

  3. electricAl engineering College of Engineering and Mines

    E-Print Network [OSTI]

    Hartman, Chris

    electricAl engineering College of Engineering and Mines Department of Electrical and Computer The mission of the UAF Electrical and Computer Engineering Department is to offer the highest quality to the technical needs of the state of Alaska, the nation and the world. Electrical and computing engineering

  4. Introduction The electric power grid and electric power

    E-Print Network [OSTI]

    of systems" that integrates an end-to-end, advanced com- munications infrastructure into the electric powerIntroduction The electric power grid and electric power industry are undergoing a dramatic transforma- tion. By linking information technologies with the electric power grid--to provide "electricity

  5. Electricity Case: Statistical Analysis of Electric Power Outages

    E-Print Network [OSTI]

    Wang, Hai

    Electricity Case: Statistical Analysis of Electric Power Outages CREATE Report Jeffrey S. Simonoff: Statistical Analysis of Electric Power Outages CREATE Report July 26, 2005 Jeffrey S. Simonoff (NYU of the United States Department of Homeland Security. #12;0 Electricity Case, Report 3 Electricity Case

  6. Electrical Cost Reduction Via Steam Turbine Cogeneration

    E-Print Network [OSTI]

    Ewing, T. S.; Di Tullio, L. B.

    ELECTRICAL COST REDUCTION VIA STEAM TURBINE COGENERATION LYNN B. DI TULLIO, P.E. Project Engineer Ewing Power Systems, Inc. South Deerfield, Mass. ABSTRACT Steam turbine cogeneration is a well established technology which is widely used... to replace pressure reducing valves with turbine generator sets in applications with flows as low as 4000 pounds of steam per hour. These systems produce electricity for $0.01 to $.02 per kWh (based on current costs of gas and oil); system cost is between...

  7. Thermal Energy Storage for Electricity Peak-demand Mitigation: A Solution in Developing and Developed World Alike

    SciTech Connect (OSTI)

    DeForest, Nicholas; Mendes, Goncalo; Stadler, Michael; Feng, Wei; Lai, Judy; Marnay, Chris

    2013-06-02T23:59:59.000Z

    In much of the developed world, air-conditioning in buildings is the dominant driver of summer peak electricity demand. In the developing world a steadily increasing utilization of air-conditioning places additional strain on already-congested grids. This common thread represents a large and growing threat to the reliable delivery of electricity around the world, requiring capital-intensive expansion of capacity and draining available investment resources. Thermal energy storage (TES), in the form of ice or chilled water, may be one of the few technologies currently capable of mitigating this problem cost effectively and at scale. The installation of TES capacity allows a building to meet its on-peak air conditioning load without interruption using electricity purchased off-peak and operating with improved thermodynamic efficiency. In this way, TES has the potential to fundamentally alter consumption dynamics and reduce impacts of air conditioning. This investigation presents a simulation study of a large office building in four distinct geographical contexts: Miami, Lisbon, Shanghai, and Mumbai. The optimization tool DER-CAM (Distributed Energy Resources Customer Adoption Model) is applied to optimally size TES systems for each location. Summer load profiles are investigated to assess the effectiveness and consistency in reducing peak electricity demand. Additionally, annual energy requirements are used to determine system cost feasibility, payback periods and customer savings under local utility tariffs.

  8. SAGEWASP. Optimal Electric Utility Expansion

    SciTech Connect (OSTI)

    Clark, P.D.II; Ullrich, C.J. [Lakeland Electric and Water, FL (United States)

    1989-10-10T23:59:59.000Z

    SAGE-WASP is designed to find the optimal generation expansion policy for an electrical utility system. New units can be automatically selected from a user-supplied list of expansion candidates which can include hydroelectric and pumped storage projects. The existing system is modeled. The calculational procedure takes into account user restrictions to limit generation configurations to an area of economic interest. The optimization program reports whether the restrictions acted as a constraint on the solution. All expansion configurations considered are required to pass a user supplied reliability criterion. The discount rate and escalation rate are treated separately for each expansion candidate and for each fuel type. All expenditures are separated into local and foreign accounts, and a weighting factor can be applied to foreign expenditures.

  9. Our Favorite Electrical Energy Saving Opportunities

    E-Print Network [OSTI]

    Turner, W. C.; Estes, C. B.; Spivey, V.

    units. Required Data: Nameplate Data: Voltage Full Load Amps Phase Power Factor Horsepower Current Sequence of Units Local Temperature Data: Total Hours/Year at Observe OF Cost of Energy $0.038/KWH Labor Cost (Electrician) $25.00/Hr... an electrician would take to modify the existing electronic controls. The wage estimate includes overhead and profit. 1. c = current 2. p = proposed ESL-IE-86-06-131 Proceedings from the Eighth Annual Industrial Energy Technology Conference, Houston, TX...

  10. Optimal Contract for Wind Power in Day-Ahead Electricity Markets

    E-Print Network [OSTI]

    Adlakha, Sachin

    Introduction The insatiable appetite for energy as well as concerns for global warming have led to greater the impact of uncertain production in electricity markets. Current electricity markets consist of primarilyOptimal Contract for Wind Power in Day-Ahead Electricity Markets Desmond W. H. Cai1 Sachin Adlakha2

  11. Challenges and Opportunities for Introducing Basic Circuits and Systems in Electrical Engineering Education

    E-Print Network [OSTI]

    Education Joos Vandewalle Department of Electrical Engineering (ESAT) Katholieke Universiteit Leuven B-3001 are essential ingredients of electrical engineering education at most universities around the world. However. First we discuss the current state of affairs and trends of Electrical Engineering education in Section

  12. Energy 101: Electric Vehicles

    ScienceCinema (OSTI)

    None

    2013-05-29T23:59:59.000Z

    This edition of Energy 101 highlights the benefits of electric vehicles, including improved fuel efficiency, reduced emissions, and lower maintenance costs. For more information on electric vehicles from the Office of Energy Efficiency and Renewable Energy, visit the Vehicle Technologies Program website: http://www1.eere.energy.gov/vehiclesandfuels/

  13. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Mai, T.

    2012-08-01T23:59:59.000Z

    This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented in a Power Systems Engineering Research Center webinar on September 4, 2012.

  14. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Hand, M.; Mai, T.

    2012-08-01T23:59:59.000Z

    This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented in an Union of Concerned Scientists webinar on June 12, 2012.

  15. ELECTRICAL & COMPUTER ENGINEERING

    E-Print Network [OSTI]

    ELECTRICAL & COMPUTER ENGINEERING SEMINAR "Considerations for Curriculum Planning and Revitalization in Engineering" by Prof. Michael A. de Miranda School of Education and Department of Electrical and Computer Engineering Colorado State University Monday, Feb. 20, 2012, 11:00 a.m. Location: LSC 210 Abstract

  16. ELECTRICAL & COMPUTER ENGINEERING

    E-Print Network [OSTI]

    ELECTRICAL & COMPUTER ENGINEERING SEMINAR "Towards Numerical Growth Model for Laser Damage is a senior member of IEEE (the Institute of Electrical and Electronics Engineers), member of SPIE is appointed as the Director of Graduate Institute of Engineering, that spearheads the development

  17. Electrical shock accident investigation

    SciTech Connect (OSTI)

    Not Available

    1994-09-30T23:59:59.000Z

    This report documents results of the accident investigation of an electrical shock received by two subcontractor employees on May 13, 1994, at the Pinellas Plant. The direct cause of the electrical shock was worker contact with a cut ``hot`` wire and a grounded panelboard (PPA) enclosure. Workers presumed that all wires in the enclosure were dead at the time of the accident and did not perform thorough Lockout/Tagout (LO/TO). Three contributing causes were identified. First, lack of guidance in the drawing for the modification performed in 1987 allowed the PPA panel to be used as a junction box. The second contributing cause is that Environmental, Safety and Health (ES&H) procedures do not address multiple electrical sources in an enclosure. Finally, the workers did not consider the possibility of multiple electrical sources. The root cause of the electrical shock was the inadequacy of administrative controls, including construction requirement and LO/TO requirements, and subcontractor awareness regarding multiple electrical sources. Recommendations to prevent further reoccurrence of this type of accident include revision of ES&H Standard 2.00, Electrical Safety Program Manual, to document requirements for multiple electrical sources in a single enclosure to specify a thorough visual inspection as part of the voltage check process. In addition, the formality of LO/TO awareness training for subcontractor electricians should be increased.

  18. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Mai, T.

    2012-08-01T23:59:59.000Z

    This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. This presentation was presented in a Wind Powering America webinar on August 15, 2012 and is now available through the Wind Powering America website.

  19. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Hand, M.

    2012-10-01T23:59:59.000Z

    This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It is being presented at the Utility Variable-Generation Integration Group Fall Technical Workshop on October 24, 2012.

  20. Hawaii electric system reliability.

    SciTech Connect (OSTI)

    Silva Monroy, Cesar Augusto; Loose, Verne William

    2012-09-01T23:59:59.000Z

    This report addresses Hawaii electric system reliability issues; greater emphasis is placed on short-term reliability but resource adequacy is reviewed in reference to electric consumers' views of reliability %E2%80%9Cworth%E2%80%9D and the reserve capacity required to deliver that value. The report begins with a description of the Hawaii electric system to the extent permitted by publicly available data. Electrical engineering literature in the area of electric reliability is researched and briefly reviewed. North American Electric Reliability Corporation standards and measures for generation and transmission are reviewed and identified as to their appropriateness for various portions of the electric grid and for application in Hawaii. Analysis of frequency data supplied by the State of Hawaii Public Utilities Commission is presented together with comparison and contrast of performance of each of the systems for two years, 2010 and 2011. Literature tracing the development of reliability economics is reviewed and referenced. A method is explained for integrating system cost with outage cost to determine the optimal resource adequacy given customers' views of the value contributed by reliable electric supply. The report concludes with findings and recommendations for reliability in the State of Hawaii.

  1. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Hand, M. M.

    2012-08-01T23:59:59.000Z

    This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented in a webinar given by the California Energy Commission.

  2. Electricity Real Options Valuation

    E-Print Network [OSTI]

    Ewa Broszkiewicz-Suwaj

    2006-08-16T23:59:59.000Z

    In this paper a real option approach for the valuation of real assets is presented. Two continuous time models used for valuation are described: geometric Brownian motion model and interest rate model. The valuation for electricity spread option under Vasicek interest model is placed and the formulas for parameter estimators are calculated. The theoretical part is confronted with real data from electricity market.

  3. Electricity Real Options Valuation

    E-Print Network [OSTI]

    Broszkiewicz-Suwaj, E

    2006-01-01T23:59:59.000Z

    In this paper a real option approach for the valuation of real assets is presented. Two continuous time models used for valuation are described: geometric Brownian motion model and interest rate model. The valuation for electricity spread option under Vasicek interest model is placed and the formulas for parameter estimators are calculated. The theoretical part is confronted with real data from electricity market.

  4. Electrically conductive diamond electrodes

    DOE Patents [OSTI]

    Swain, Greg (East Lansing, MI); Fischer, Anne (Arlington, VA),; Bennett, Jason (Lansing, MI); Lowe, Michael (Holt, MI)

    2009-05-19T23:59:59.000Z

    An electrically conductive diamond electrode and process for preparation thereof is described. The electrode comprises diamond particles coated with electrically conductive doped diamond preferably by chemical vapor deposition which are held together with a binder. The electrodes are useful for oxidation reduction in gas, such as hydrogen generation by electrolysis.

  5. Superconductivity for Electric Systems

    E-Print Network [OSTI]

    1 Superconductivity for Electric Systems Superconductivity Program Quarterly Progress Report For the Period October 1, 2006, to December 31, 2006 #12;2 Superconductivity Program Quarterly Progress Report Superconductivity Program Oak Ridge National Laboratory For U.S. Department of Energy Office of Electricity Delivery

  6. Superconductivity for Electric Systems

    E-Print Network [OSTI]

    Superconductivity for Electric Systems Superconductivity Program Quarterly Progress Report For the Period January 1, 2007 to March 31, 2007 #12;2 Superconductivity Program Quarterly Progress Report Superconductivity Program Oak Ridge National Laboratory For: Department of Energy Office of Electricity Delivery

  7. Superconductivity for Electric Systems

    E-Print Network [OSTI]

    Superconductivity for Electric Systems Superconductivity Program Quarterly Progress Report For the Period April 1, 2007, to June 30, 2007 #12;2 Superconductivity Program Quarterly Progress Report Superconductivity Program Oak Ridge National Laboratory For: Department of Energy Office of Electricity Delivery

  8. Electricity market module: Electricity capacity planning submodule

    SciTech Connect (OSTI)

    NONE

    1996-06-01T23:59:59.000Z

    The purpose of this report is to describe modifications to the Electricity Capacity Planning Submodule (ECP) for the Annual Energy Outlook 1996. It describes revisions to enhance the representation of planned maintenance, incorporate technological improvements in operating efficiencies, revise the algorithm for determining international firm power imports, and include risk premiums for new plant construction.

  9. American Indian tribes and electric industry restructuring: Issues and opportunities

    SciTech Connect (OSTI)

    Howarth, D. [Morse, Richard, and Weisenmiller, and Associates Inc., Oakland, CA (United States); Busch, J. [Lawrence Berkeley National Lab., CA (United States); Starrs, T. [Kelso, Starrs, and Associates LLC, Vashon, WA (United States)

    1997-07-01T23:59:59.000Z

    The US electric utility industry is undergoing a period of fundamental change that has significant implications for Native American tribes. Although many details remain to be determined, the future electric power industry will be very different from that of the present. It is anticipated that the new competitive electric industry will be more efficient, which some believe will benefit all participants by lowering electricity costs. Recent developments in the industry, however, indicate that the restructuring process will likely benefit some parties at the expense of others. Given the historical experience and current situation of Native American tribes in the US, there is good reason to pay attention to electric industry changes to ensure that the situation of tribes is improved and not worsened as a result of electric restructuring. This paper provides a review of electricity restructuring in the US and identifies ways in which tribes may be affected and how tribes may seek to protect and serve their interests. Chapter 2 describes the current status of energy production and service on reservations. Chapter 3 provides an overview of the evolution of the electric industry to its present form and introduces the regulatory and structural changes presently taking place. Chapter 4 provides a more detailed discussion of changes in the US electric industry with a specific focus on the implications of these changes for tribes. Chapter 5 presents a summary of the conclusions reached in this paper.

  10. Ultracapacitor current collector

    DOE Patents [OSTI]

    Jerabek, Elihu Calfin (Glenmont, NY); Mikkor, Mati (Ann Arbor, MI)

    2001-10-16T23:59:59.000Z

    An ultracapacitor having two solid, nonporous current collectors, two porous electrodes separating the collectors, a porous separator between the electrodes and an electrolyte occupying the pores in the electrodes and separator. At least one of the current collectors comprises a conductive metal substrate coated with a metal nitride, carbide or boride coating.

  11. Electric power monthly

    SciTech Connect (OSTI)

    Not Available

    1992-05-01T23:59:59.000Z

    The Electric Power Monthly is prepared by the Survey Management Division; Office of Coal, Nuclear, Electric and Alternate Fuels, Energy Information Administration (EIA), Department of Energy. This publication provides monthly statistics at the national, Census division, and State levels for net generation, fuel consumption, fuel stocks, quantity and quality of fuel, cost of fuel, electricity sales, revenue, and average revenue per kilowatthour of electricity sold. Data on net generation, fuel consumption, fuel stocks, quantity and cost of fuel are also displayed for the North American Electric Reliability Council (NERC) regions. Additionally, statistics by company and plant are published in the EPM on capability of new plants, new generation, fuel consumption, fuel stocks, quantity and quality of fuel, and cost of fuel.

  12. Electric turbocompound control system

    DOE Patents [OSTI]

    Algrain, Marcelo C. (Dunlap, IL)

    2007-02-13T23:59:59.000Z

    Turbocompound systems can be used to affect engine operation using the energy in exhaust gas that is driving the available turbocharger. A first electrical device acts as a generator in response to turbocharger rotation. A second electrical device acts as a motor to put mechanical power into the engine, typically at the crankshaft. Apparatus, systems, steps, and methods are described to control the generator and motor operations to control the amount of power being recovered. This can control engine operation closer to desirable parameters for given engine-related operating conditions compared to actual. The electrical devices can also operate in "reverse," going between motor and generator functions. This permits the electrical device associated with the crankshaft to drive the electrical device associated with the turbocharger as a motor, overcoming deficient engine operating conditions such as associated with turbocharger lag.

  13. Method and system for managing an electrical output of a turbogenerator

    DOE Patents [OSTI]

    Stahlhut, Ronnie Dean (Bettendorf, IA); Vuk, Carl Thomas (Denver, IA)

    2009-06-02T23:59:59.000Z

    The system and method manages an electrical output of a turbogenerator in accordance with multiple modes. In a first mode, a direct current (DC) bus receives power from a turbogenerator output via a rectifier where turbogenerator revolutions per unit time (e.g., revolutions per minute (RPM)) or an electrical output level of a turbogenerator output meet or exceed a minimum threshold. In a second mode, if the turbogenerator revolutions per unit time or electrical output level of a turbogenerator output are less than the minimum threshold, the electric drive motor or a generator mechanically powered by the engine provides electrical energy to the direct current bus.

  14. Method and system for managing an electrical output of a turbogenerator

    DOE Patents [OSTI]

    Stahlhut, Ronnie Dean (Bettendorf, IA); Vuk, Carl Thomas (Denver, IA)

    2010-08-24T23:59:59.000Z

    The system and method manages an electrical output of a turbogenerator in accordance with multiple modes. In a first mode, a direct current (DC) bus receives power from a turbogenerator output via a rectifier where turbogenerator revolutions per unit time (e.g., revolutions per minute (RPM)) or an electrical output level of a turbogenerator output meet or exceed a minimum threshold. In a second mode, if the turbogenerator revolutions per unit time or electrical output level of a turbogenerator output are less than the minimum threshold, the electric drive motor or a generator mechanically powered by the engine provides electrical energy to the direct current bus.

  15. Assessing Vehicle Electricity Demand Impacts on California Electricity Supply

    E-Print Network [OSTI]

    McCarthy, Ryan W.

    2009-01-01T23:59:59.000Z

    Designing Markets for Electricity, Wiley-IEEE Press. CEC (in Major Drivers in U.S. Electricity Markets, NREL/CP-620-and fuel efficiency and electricity demand assumptions used

  16. Electricity Grid: Impacts of Plug-In Electric Vehicle Charging

    E-Print Network [OSTI]

    Yang, Christopher; McCarthy, Ryan

    2009-01-01T23:59:59.000Z

    mail: ccyang@ucdavis.edu. Electricity Grid Impacts of Plug-by either gasoline or electricity, but unlike hybrids, PHEVsto use very low-carbon electricity resources, such as

  17. U.S. electric utility demand-side management 1995

    SciTech Connect (OSTI)

    NONE

    1997-01-01T23:59:59.000Z

    The US Electric Utility Demand-Side Management report is prepared by the Coal and Electric Data and Renewables Division; Office of Coal, Nuclear, Electric and Alternative Fuels; Energy Information Administration (EIA); US Department of Energy. The report presents comprehensive information on electric power industry demand-side management (DSM) activities in the US at the national, regional, and utility levels. The objective of the publication is to provide industry decision makers, government policy makers, analysts, and the general public with historical data that may be used in understanding DSM as it relates to the US electric power industry. The first chapter, ``Profile: US Electric Utility Demand-Side Management``, presents a general discussion of DSM, its history, current issues, and a review of key statistics for the year. Subsequent chapters present discussions and more detailed data on energy savings, peak load reductions and costs attributable to DSM. 9 figs., 24 tabs.

  18. ELECTRICAL ENGINEERING TECHNOLOGY PROGRAM EET 105: ELECTRICAL SYSTEMS

    E-Print Network [OSTI]

    Lozano-Nieto, Albert

    1 ELECTRICAL ENGINEERING TECHNOLOGY PROGRAM EET 105: ELECTRICAL SYSTEMS Instructor: Albert LozanoF) - Value of capacitors: -Printed on body of capacitor (physically large capacitors) -Code (useless) -If

  19. ELECTRICAL ENGINEERING TECHNOLOGY PROGRAM EET 105 ELECTRICAL SYSTEMS

    E-Print Network [OSTI]

    Lozano-Nieto, Albert

    ELECTRICAL ENGINEERING TECHNOLOGY PROGRAM EET 105 ­ ELECTRICAL SYSTEMS LABORATORY EXPERIENCES will become familiar with solar cells as photovoltaic energy converters. Secondly, students will practice

  20. Plug-In Electric Vehicle Handbook for Electrical Contractors (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2012-04-01T23:59:59.000Z

    This handbook answers basic questions about plug-in electric vehicles, charging stations, charging equipment, charging equipment installation, and training for electrical contractors.