Sample records for gas transmission lines

  1. Regulations for Electric Transmission and Fuel Gas Transmission Lines Ten or More Miles Long (New York)

    Broader source: Energy.gov [DOE]

    Any person who wishes to construct an electric or gas transmission line that is more than ten miles long must file documents describing the construction plans and potential land use and...

  2. Regulations for Gas Transmission Lines Less than Ten Miles Long (New York)

    Broader source: Energy.gov [DOE]

    Any person who wishes to construct a gas transmission line that is less than ten miles long must file documents describing the construction plans and potential land use and environmental impacts of...

  3. Renewable portfolio standards, Greenhouse gas reduction, and Long-Line transmission investments in the WECC

    SciTech Connect (OSTI)

    Olson, Arne; Orans, Ren; Allen, Doug; Moore, Jack; Woo, C.K.

    2009-11-15T23:59:59.000Z

    New, long-distance transmission lines to remote areas with concentrations of high-quality renewable resources can help western states meet the challenges of increasing renewable energy procurement and reducing greenhouse gas emissions more cost-effectively than reliance on local resources alone. The approach applied here to the Western Electricity Coordinating Council is useful for an initial determination of the net benefits of long-line transmission between regions with heterogeneous resource quality. (author)

  4. Particle trap with dielectric barrier for use in gas insulated transmission lines

    DOE Patents [OSTI]

    Dale, Steinar J. (Monroeville, PA)

    1982-01-01T23:59:59.000Z

    A gas-insulated transmission line includes an outer sheath, an inner conductor within the outer sheath, insulating supports supporting the inner conductor within the outer sheath, and an insulating gas electrically insulating the inner conductor from the outer sheath. An apertured particle trapping electrode is disposed within the outer sheath, and the electrode has a pair of dielectric members secured at each longitudinal end thereof, with the dielectric members extending outwardly from the apertured electrode.

  5. Particle trap with dielectric barrier for use in gas insulated transmission lines

    DOE Patents [OSTI]

    Dale, S.J.

    1982-06-15T23:59:59.000Z

    A gas-insulated transmission line includes an outer sheath, an inner conductor within the outer sheath, insulating supports supporting the inner conductor within the outer sheath, and an insulating gas electrically insulating the inner conductor from the outer sheath. An apertured particle trapping electrode is disposed within the outer sheath, and the electrode has a pair of dielectric members secured at each longitudinal end thereof, with the dielectric members extending outwardly from the apertured electrode. 7 figs.

  6. Hybrid particle traps and conditioning procedure for gas insulated transmission lines

    DOE Patents [OSTI]

    Dale, Steinar J. (Monroeville, PA); Cookson, Alan H. (Churchill, PA)

    1982-01-01T23:59:59.000Z

    A gas insulated transmission line includes an outer sheath, an inner condor within the outer sheath, insulating supports supporting the inner conductor within the outer sheath, and an insulating gas electrically insulating the inner conductor from the outer sheath. An apertured particle trapping ring is disposed within the outer sheath, and the trapping ring has a pair of dielectric members secured at each longitudinal end thereof, with the dielectric members extending outwardly from the trapping ring along an arc. A support sheet having an adhesive coating thereon is secured to the trapping ring and disposed on the outer sheath within the low field region formed between the trapping ring and the outer sheath. A conditioning method used to condition the transmission line prior to activation in service comprises applying an AC voltage to the inner conductor in a plurality of voltage-time steps, with the voltage-time steps increasing in voltage magnitude while decreasing in time duration.

  7. Vertically aligned gas-insulated transmission line having particle traps at the inner conductor

    DOE Patents [OSTI]

    Dale, Steinar J. (Monroeville, PA)

    1984-01-01T23:59:59.000Z

    Gas insulated electrical apparatus having first and second conductors separated by an insulating support within an insulating gas environment, and particle traps disposed along the surface of the high potential conductor for trapping and inactivating foreign particles which may be present within the insulating gas medium. Several embodiments of the invention were developed which are particularly suited for vertically aligned gas insulated transmission lines. The particle traps are grooves or cavities formed into the walls of the tubular inner conductor, without extending into the hollow portion of the conductor. In other embodiments, the traps are appendages or insert flanges extending from the inner conductor, with the insulator supports contacting the appendages instead of the inner conductor.

  8. Particle trap to sheath contact for a gas-insulated transmission line having a corrugated outer conductor

    DOE Patents [OSTI]

    Fischer, William H. (Pittsburgh, PA); Cookson, Alan H. (Pittsburgh, PA); Yoon, Kue H. (Pittsburgh, PA)

    1984-04-10T23:59:59.000Z

    A particle trap to outer elongated conductor or sheath contact for gas-insulated transmission lines. The particle trap to outer sheath contact of the invention is applicable to gas-insulated transmission lines having either corrugated or non-corrugated outer sheaths. The contact of the invention includes an electrical contact disposed on a lever arm which in turn is rotatably disposed on the particle trap and biased in a direction to maintain contact between the electrical contact and the outer sheath.

  9. Flexible gas insulated transmission line having regions of reduced electric field

    DOE Patents [OSTI]

    Cookson, Alan H. (Pittsburgh, PA); Fischer, William H. (Wilkins Township, Allegheny County, PA); Yoon, Kue H. (Pittsburgh, PA); Meyer, Jeffry R. (Penn Hills Township, Allegheny County, PA)

    1983-01-01T23:59:59.000Z

    A gas insulated transmission line having radially flexible field control means for reducing the electric field along the periphery of the inner conductor at predetermined locations wherein the support insulators are located. The radially flexible field control means of the invention includes several structural variations of the inner conductor, wherein careful controlling of the length to depth of surface depressions produces regions of reduced electric field. Several embodiments of the invention dispose a flexible connector at the predetermined location along the inner conductor where the surface depressions that control the reduced electric field are located.

  10. Semi-flexible gas-insulated transmission line using electric field stress shields

    DOE Patents [OSTI]

    Cookson, A.H.; Dale, S.J.; Bolin, P.C.

    1982-12-28T23:59:59.000Z

    A gas-insulated transmission line includes an outer sheath, an inner conductor, an insulating gas electrically insulating the inner conductor from the outer sheath, and insulating supports insulatably supporting the inner conductor within the outer sheath. The inner conductor is provided with flexibility by use of main conductor sections which are joined together through a conductor hub section and flexible flexing elements. Stress shields are provided to control the electric field at the locations of the conductor hub sections where the insulating supports are contacting the inner conductor. The flexing elements and the stress shields may also be utilized in connection with a plug and socket arrangement for providing electrical connection between main conductor sections. 10 figs.

  11. Semi-flexible gas-insulated transmission line using sandwiched discs for intermittent flexing joints

    DOE Patents [OSTI]

    Kommineni, P.R.

    1983-02-15T23:59:59.000Z

    A gas-insulated transmission line includes an outer sheath, an inner conductor, an insulating gas electrically insulating the inner conductor from the outer sheath, and insulating supports insulatably supporting the inner conductor within the outer sheath. The inner conductor is provided with flexibility by the use of main conductor sections which are joined together through a conductor hub section and flexible flexing elements. Stress shields are provided to control the electric field at the locations of the conductor hub sections where the insulating supports are contacting the inner conductor. The flexing elements are formed by sandwiching together, by fusing, a pair of thin hollow discs which are fixedly secured to both the main conductor sections and the conductor hub section. 4 figs.

  12. Semi-flexible gas-insulated transmission line using sandwiched discs for intermittent flexing joints

    DOE Patents [OSTI]

    Kommineni, Prasad R. (Westboro, MA)

    1983-02-15T23:59:59.000Z

    A gas-insulated transmission line includes an outer sheath, an inner conductor, an insulating gas electrically insulating the inner conductor from the outer sheath, and insulating supports insulatably supporting the inner conductor within the outer sheath. The inner conductor is provided with flexibility by the use of main conductor sections which are joined together through a conductor hub section and flexible flexing elements. Stress shields are provided to control the electric field at the locations of the conductor hub sections where the insulating supports are contacting the inner conductor. The flexing elements are formed by sandwiching together, by fusing, a pair of thin hollow discs which are fixedly secured to both the main conductor sections and the conductor hub section.

  13. Series Transmission Line Transformer

    DOE Patents [OSTI]

    Buckles, Robert A. (Livermore, CA); Booth, Rex (Livermore, CA); Yen, Boris T. (El Cerrito, CA)

    2004-06-29T23:59:59.000Z

    A series transmission line transformer is set forth which includes two or more of impedance matched sets of at least two transmissions lines such as shielded cables, connected in parallel at one end ans series at the other in a cascading fashion. The cables are wound about a magnetic core. The series transmission line transformer (STLT) which can provide for higher impedance ratios and bandwidths, which is scalable, and which is of simpler design and construction.

  14. 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...

  15. Transmission Line Security Monitor

    ScienceCinema (OSTI)

    None

    2013-05-28T23:59:59.000Z

    The Transmission Line Security Monitor is a multi-sensor monitor that mounts directly on high-voltage transmission lines to detect, characterize and communicate terrorist activity, human tampering and threatening conditions around support towers. For more information about INL's critical infrastructure protection research, visit http://www.facebook.com/idahonationallaboratory.

  16. Transmission Line Security Monitor

    SciTech Connect (OSTI)

    None

    2011-01-01T23:59:59.000Z

    The Transmission Line Security Monitor is a multi-sensor monitor that mounts directly on high-voltage transmission lines to detect, characterize and communicate terrorist activity, human tampering and threatening conditions around support towers. For more information about INL's critical infrastructure protection research, visit http://www.facebook.com/idahonationallaboratory.

  17. Electric Transmission Lines (Iowa)

    Broader source: Energy.gov [DOE]

    Electric transmission lines capable of operating at 69 kV or greater cannot be constructed along, across, or over any public highways or grounds outside of cities without a franchise from the...

  18. Semi-flexible gas-insulated transmission line using protection tube in conductor plug-in joint

    DOE Patents [OSTI]

    Kommineni, P.R.

    1983-01-25T23:59:59.000Z

    A gas-insulated transmission line includes an outer sheath, an inner conductor, an insulating gas electrically insulating the inner conductor from the outer sheath, and insulating supports insulatably supporting the inner conductor within the outer sheath. The inner conductor is provided with flexibility by main conductor sections which are joined together through a conductor hub section and flexible flexing elements. Stress shields are provided to control the electric field at the locations of the conductor hub sections where the insulating supports are contacting the inner conductor. A plug and socket arrangement is utilized for joining adjacent sections of the inner conductor, and a protection tube is utilized inside the hollow plug to maintain proper alignment of the joint when the transmission line is bent. 3 figs.

  19. Particle trap to sheath non-binding contact for a gas-insulated transmission line having a corrugated outer conductor

    DOE Patents [OSTI]

    Fischer, William H. (Pittsburgh, PA)

    1984-04-24T23:59:59.000Z

    A non-binding particle trap to outer sheath contact for use in gas insulated transmission lines having a corrugated outer conductor. The non-binding feature of the contact according to the teachings of the invention is accomplished by having a lever arm rotatably attached to a particle trap by a pivot support axis disposed parallel to the direction of travel of the inner conductor/insulator/particle trap assembly.

  20. Printed circuit dispersive transmission line

    DOE Patents [OSTI]

    Ikezi, H.; Lin-Liu, Y.R.; DeGrassie, J.S.

    1991-08-27T23:59:59.000Z

    A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission line between two adjacent periodic intersections to be longer than the other. 5 figures.

  1. Omega Transmission Lines

    E-Print Network [OSTI]

    Vehmas, Joni

    2013-01-01T23:59:59.000Z

    In this paper, we show how bi-anisotropic media with omega-type response can be realized using periodically loaded transmission lines. General conditions for the needed unit cell circuit block are derived. Also, an implementation is shown and analyzed.

  2. Drill string transmission line

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David S. (Lehi, UT); Bradford, Kline (Orem, UT); Fox, Joe (Spanish Fork, UT)

    2006-03-28T23:59:59.000Z

    A transmission line assembly for transmitting information along a downhole tool comprising a pin end, a box end, and a central bore traveling between the pin end and the box end, is disclosed in one embodiment of the invention as including a protective conduit. A transmission line is routed through the protective conduit. The protective conduit is routed through the central bore and the ends of the protective conduit are routed through channels formed in the pin end and box end of the downhole tool. The protective conduit is elastically forced into a spiral or other non-linear path along the interior surface of the central bore by compressing the protective conduit to a length within the downhole tool shorter than the protective conduit.

  3. Transmission line: design manual

    SciTech Connect (OSTI)

    Farr, H.H.

    1980-01-01T23:59:59.000Z

    The purpose of this manual is to outline the various requirements for, and the procedures to be followed in the design of power transmission lines by the Bureau of Reclamation, US Department of the Interior. Numerous design studies, which have been made on specific aspects of transmission line design, are included with explanations of their applications. Information is presented concerning such aspects as selection of type of construction, conductor sags and tensions, insulation, lightning protection, clearance patterns, galloping conductors, structure limitation and guying charts, and structure spotting. Structure design examples are limited to wood-pole construction. Interpretations of the National Electrical Safety Code and other codes are made as required. Some of the example problems were developed when the sixth edition of NESC was current, and are so noted; however, most examples use the 1977 edition of NESC.

  4. Infrastructure Needs: Natural Gas/Electricity Transmission,...

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

    4,200 miles of transmission lines, 72,000 miles of distribution lines, and 6,300 miles of natural gas pipelines. Our over 8,600 employees are committed to our mission to deliver...

  5. EC Transmission Line Materials

    SciTech Connect (OSTI)

    Bigelow, Tim S [ORNL

    2012-05-01T23:59:59.000Z

    The purpose of this document is to identify materials acceptable for use in the US ITER Project Office (USIPO)-supplied components for the ITER Electron cyclotron Heating and Current Drive (ECH&CD) transmission lines (TL), PBS-52. The source of material property information for design analysis shall be either the applicable structural code or the ITER Material Properties Handbook. In the case of conflict, the ITER Material Properties Handbook shall take precedence. Materials selection, and use, shall follow the guidelines established in the Materials Assessment Report (MAR). Materials exposed to vacuum shall conform to the ITER Vacuum Handbook. [Ref. 2] Commercial materials shall conform to the applicable standard (e.g., ASTM, JIS, DIN) for the definition of their grade, physical, chemical and electrical properties and related testing. All materials for which a suitable certification from the supplier is not available shall be tested to determine the relevant properties, as part of the procurement. A complete traceability of all the materials including welding materials shall be provided. Halogenated materials (example: insulating materials) shall be forbidden in areas served by the detritiation systems. Exceptions must be approved by the Tritium System and Safety Section Responsible Officers.

  6. Electrical transmission line diametrical retainer

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT); Fox, Joe (Spanish Fork, UT)

    2004-12-14T23:59:59.000Z

    The invention is a mechanism for retaining an electrical transmission line. In one embodiment of the invention it is a system for retaining an electrical transmission line within down hole components. In accordance with one aspect of the invention, the system includes a plurality of downhole components, such as sections of pipe in a drill string. The system also includes a coaxial cable running between the first and second end of a drill pipe, the coaxial cable having a conductive tube and a conductive core within it. The invention allows the electrical transmission line to with stand the tension and compression of drill pipe during routine drilling cycles.

  7. Load-resistant coaxial transmission line

    DOE Patents [OSTI]

    Hall, David R.; Fox, Joe

    2006-01-03T23:59:59.000Z

    A transmission line for downhole tools that make up all or part of a tool string for drilling and production of oil, gas, and geothermal wells that can withstand the dynamic gravitational forces and other accelerations associated with downhole excavations. The transmission line has a metal tube, or outer conductor, that houses a coaxial wire inner conductor. A non-metallic dielectric material is interposed between the inner and outer conductors. The outer and inner conductors and the dielectric are sufficiently compressed together so that independent motion between them is abated. Compression of the components of the transmission line may be achieved by drawing the transmission through one or more dies in order to draw down the outer conductor onto the dielectric, or by expanding the inner conductor against the dielectric using a mandrel or hydraulic pressure. Non-metallic bead segments may be used in aid of the compression necessary to resist the dynamic forces and accelerations of drilling.

  8. Transmission Lines Emulating Moving Media

    E-Print Network [OSTI]

    Vehmas, Joni; Tretyakov, Sergei

    2014-01-01T23:59:59.000Z

    In this paper, we show how the electromagnetic phenomena in moving magnetodielectric media can be emulated using artificial composite structures at rest. In particular, we introduce nonreciprocal periodically loaded transmission lines which support waves obeying the same rules as plane electromagnetic waves in moving media. Because the actual physical structure is at rest, in these transmission lines there are no fundamental limitations on the velocity values, which may take values larger than the speed of light or even complex values (considering complex amplitudes in the time-harmonic regime). An example circuit of a unit cell of a "moving" transmission line is presented and analyzed both numerically and experimentally. The special case of composite right/left handed host line is also studied numerically. Besides the fundamental interest, the study is relevant for potential applications in realizing engineered materials for various transformations of electromagnetic fields.

  9. Plains and Eastern Clean Line Transmission Line: Comment from...

    Office of Environmental Management (EM)

    from Block Plains and Eastern Clean Line: Arkansas and Oklahoma Plains and Eastern Clean Line Transmission Line: Comment from Block Plains and Eastern Clean Line: Arkansas and...

  10. Florida Electric Transmission Line Siting Act (Florida)

    Broader source: Energy.gov [DOE]

    The Transmission Line Siting Act (TLSA) is the state’s centralized process for licensing electrical transmission lines which; (a) are 230 kV or larger; (b) cross a county line; and, (c) are 15...

  11. Pulse shaping with transmission lines

    DOE Patents [OSTI]

    Wilcox, Russell B. (Oakland, CA)

    1987-01-01T23:59:59.000Z

    A method and apparatus for forming shaped voltage pulses uses passive reflection from a transmission line with nonuniform impedance. The impedance of the reflecting line varies with length in accordance with the desired pulse shape. A high voltage input pulse is transmitted to the reflecting line. A reflected pulse is produced having the desired shape and is transmitted by pulse removal means to a load. Light activated photoconductive switches made of silicon can be utilized. The pulse shaper can be used to drive a Pockels cell to produce shaped optical pulses.

  12. Pulse shaping with transmission lines

    DOE Patents [OSTI]

    Wilcox, R.B.

    1985-08-15T23:59:59.000Z

    A method and apparatus for forming shaped voltage pulses uses passive reflection from a transmission line with nonuniform impedance. The impedance of the reflecting line varies with length in accordance with the desired pulse shape. A high voltage input pulse is transmitted to the reflecting line. A reflected pulse is produced having the desired shape and is transmitted by pulse removal means to a load. Light activated photoconductive switches made of silicon can be utilized. The pulse shaper can be used to drive a Pockels cell to produce shaped optical pulses.

  13. Coiled transmission line pulse generators

    DOE Patents [OSTI]

    McDonald, Kenneth Fox (Columbia, MO)

    2010-11-09T23:59:59.000Z

    Methods and apparatus are provided for fabricating and constructing solid dielectric "Coiled Transmission Line" pulse generators in radial or axial coiled geometries. The pour and cure fabrication process enables a wide variety of geometries and form factors. The volume between the conductors is filled with liquid blends of monomers, polymers, oligomers, and/or cross-linkers and dielectric powders; and then cured to form high field strength and high dielectric constant solid dielectric transmission lines that intrinsically produce ideal rectangular high voltage pulses when charged and switched into matched impedance loads. Voltage levels may be increased by Marx and/or Blumlein principles incorporating spark gap or, preferentially, solid state switches (such as optically triggered thyristors) which produce reliable, high repetition rate operation. Moreover, these Marxed pulse generators can be DC charged and do not require additional pulse forming circuitry, pulse forming lines, transformers, or an a high voltage spark gap output switch. The apparatus accommodates a wide range of voltages, impedances, pulse durations, pulse repetition rates, and duty cycles. The resulting mobile or flight platform friendly cylindrical geometric configuration is much more compact, light-weight, and robust than conventional linear geometries, or pulse generators constructed from conventional components. Installing additional circuitry may accommodate optional pulse shape improvements. The Coiled Transmission Lines can also be connected in parallel to decrease the impedance, or in series to increase the pulse length.

  14. Agenda: Natural Gas: Transmission, Storage and Distribution ...

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

    Natural Gas: Transmission, Storage and Distribution Agenda: Natural Gas: Transmission, Storage and Distribution A Public Meeting on the Quadrennial Energy Review, Hosted by the...

  15. Discontinuities in transmission lines and wave guides

    E-Print Network [OSTI]

    Mathis, Harold Fletcher

    1952-01-01T23:59:59.000Z

    DISCONTINUITIES IN TRANSMISSION LINES AND WAVEGUIDES H. F. MATHIS DISCONTINUITIES IN TRANSMISSION LINES AND liVAVNGUIDBS A Thesis By Harola Fletcher htathis Approved as to style and content by: Chairman of Committee DISCONTINUITIES... Subject. Electrical Engineering COHERENT S PAGE I Introduct ion, II Dl. scontlnuit les in Transmission Lines 2 1. Some Seneral char aeter 1 st 1 ca of the transmission lines. . . , . . . , ~ 5 2 ~ 2. Types of dlscontlnuitles ln transmls- sl...

  16. Magnetically insulated transmission line oscillator

    DOE Patents [OSTI]

    Bacon, Larry D. (Albuquerque, NM); Ballard, William P. (Albuquerque, NM); Clark, M. Collins (Albuquerque, NM); Marder, Barry M. (Albuquerque, NM)

    1988-01-01T23:59:59.000Z

    A magnetically insulated transmission line oscillator employs self-generated magnetic fields to generate microwave energy. An anode of the oscillator includes slow-wave structures which are formed of a plurality of thin conductive vanes defining cavities therebetween, and a gap is formed between the anode and a cathode of the oscillator. In response to a pulsed voltage applied to the anode and cathode, self-generated magnetic fields arfe produced in a cross-field orientation with respect to the orientation of the electric field between the anode and the cathode. The cross-field magnetic fields insulate the flow of electrons in the gap and confine the flow of electrons within the gap.

  17. Superconducting transmission line particle detector

    DOE Patents [OSTI]

    Gray, Kenneth E. (Naperville, IL)

    1989-01-01T23:59:59.000Z

    A microvertex particle detector for use in a high energy physic collider including a plurality of parallel superconducting thin film strips separated from a superconducting ground plane by an insulating layer to form a plurality of superconducting waveguides. The microvertex particle detector indicates passage of a charged subatomic particle by measuring a voltage pulse measured across a superconducting waveguide caused by the transition of the superconducting thin film strip from a superconducting to a non-superconducting state in response to the passage of a charged particle. A plurality of superconducting thin film strips in two orthogonal planes plus the slow electromagnetic wave propogating in a superconducting transmission line are used to resolve N.sup.2 ambiguity of charged particle events.

  18. Superconducting transmission line particle detector

    DOE Patents [OSTI]

    Gray, K.E.

    1988-07-28T23:59:59.000Z

    A microvertex particle detector for use in a high energy physic collider including a plurality of parallel superconducting thin film strips separated from a superconducting ground plane by an insulating layer to form a plurality of superconducting waveguides. The microvertex particle detector indicates passage of a charged subatomic particle by measuring a voltage pulse measured across a superconducting waveguide caused by the transition of the superconducting thin film strip from a superconducting to a non- superconducting state in response to the passage of a charged particle. A plurality of superconducting thin film strips in two orthogonal planes plus the slow electromagnetic wave propagating in a superconducting transmission line are used to resolve N/sup 2/ ambiguity of charged particle events. 6 figs.

  19. Grand Coulee Transmission Line Replacement Project

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

    by the Bureau of Reclamation to design and construct six new 500-kV overhead transmission lines at Grand Coulee Dam. BPA will replace the existing underground transmission...

  20. Transmission Line Security Monitor: Final Report

    SciTech Connect (OSTI)

    John Svoboda

    2011-04-01T23:59:59.000Z

    The Electric Power Transmission Line Security Monitor System Operational Test is a project funded by the Technical Support Working Group (TSWG). TSWG operates under the Combating Terrorism Technical Support Office that functions under the Department of Defense. The Transmission Line Security Monitor System is based on technology developed by Idaho National Laboratory. The technology provides a means for real-time monitoring of physical threats and/or damage to electrical transmission line towers and conductors as well as providing operational parameters to transmission line operators to optimize transmission line operation. The end use is for monitoring long stretches of transmission lines that deliver electrical power from remote generating stations to cities and industry. These transmission lines are generally located in remote transmission line corridors where security infrastructure may not exist. Security and operational sensors in the sensor platform on the conductors take power from the transmission line and relay security and operational information to operations personnel hundreds of miles away without relying on existing infrastructure. Initiated on May 25, 2007, this project resulted in pre-production units tested in realistic operational environments during 2010. A technology licensee, Lindsey Manufacturing of Azusa California, is assisting in design, testing, and ultimately production. The platform was originally designed for a security monitoring mission, but it has been enhanced to include important operational features desired by electrical utilities.

  1. Detonator comprising a nonlinear transmission line

    DOE Patents [OSTI]

    Elizondo-Decanini, Juan M

    2014-12-30T23:59:59.000Z

    Detonators are described herein. In a general embodiment, the detonator includes a nonlinear transmission line that has a variable capacitance. Capacitance of the nonlinear transmission line is a function of voltage on the nonlinear transmission line. The nonlinear transmission line receives a voltage pulse from a voltage source and compresses the voltage pulse to generate a trigger signal. Compressing the voltage pulse includes increasing amplitude of the voltage pulse and decreasing length of the voltage pulse in time. An igniter receives the trigger signal and detonates an explosive responsive to receipt of the trigger signal.

  2. Natural Gas Transmission Pipeline Siting Act (Florida)

    Broader source: Energy.gov [DOE]

    This Act establishes a centralized and coordinated permitting process for the location of natural gas transmission pipeline corridors and the construction and maintenance of natural gas...

  3. Performance of a technical and economical feasibility study of an HVDC compressed gas insulated transmission line. [600 kV

    SciTech Connect (OSTI)

    LaBarge, R.L.

    1980-12-15T23:59:59.000Z

    Progress in evaluating the technical feasibility of SF/sub 6/-insulated cables and circuit breakers for HVDC systems is reported. During this reporting period a new test setup was completed. An assembly jig was designed and fabricated. Model cable up to 20-ft length can be assembled complete outside the test tank. Components to extend the test tank to accommodate a 20-ft model cable have been obtained. A report was drafted on the effect of material selection as well as processing into insulators on the long-term dielectric performance of the insulator. The vertical leaf expansion joint design was improved by replacing the Alcuplate copper-to-aluminum transition piece with nickel plating on the aluminum parts. The joint was fatigue tested with condition which simulate almost 2 1/2 cycles of temperature excursions each day for the 40 year design life of the line. Electrical tests of the joint are in progress.

  4. Electrical Transmission Line Diametrical Retention Mechanism

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT); Fox, Joe (Spanish Fork, UT)

    2006-01-03T23:59:59.000Z

    The invention is a mechanism for retaining an electrical transmission line. In one embodiment of the invention it is a system for retaining an electrical transmission line within downhole components. The invention allows a transmission line to be attached to the internal diameter of drilling components that have a substantially uniform drilling diameter. In accordance with one aspect of the invention, the system includes a plurality of downhole components, such as sections of pipe in a drill string, drill collars, heavy weight drill pipe, and jars. The system also includes a coaxial cable running between the first and second end of a drill pipe, the coaxial cable having a conductive tube and a conductive core within it. The invention allows the electrical transmission line to withstand the tension and compression of drill pipe during routine drilling cycles.

  5. MATHEMATICAL ANALYSIS OF CONDUCTING AND SUPERCONDUCTING TRANSMISSION LINES

    E-Print Network [OSTI]

    Ramdani, Karim - Institut de Mathématiques �lie Cartan, Université Henri Poincaré

    MATHEMATICAL ANALYSIS OF CONDUCTING AND SUPERCONDUCTING TRANSMISSION LINES ANNE-SOPHIE BONNET propagation in the microstrip transmission lines used in microelectronics. In the first part, the case of the perfectly conducting strip. Key words. superconducting transmission lines, waveguides, spectral analysis

  6. EIS-0067: 230-kV International Transmission Line San Diego County, California to Tijuana, Mexico, San Diego Gas and Electric Company

    Broader source: Energy.gov [DOE]

    The Economic Regulatory Administration and the California Public Utilities Commission jointly prepared this EIS to evaluate the environmental impacts of the construction, maintenance and operation of a 10-mile, 230-kilovolt transmission line across the U.S./Mexico border for the purpose of economic exchange of power and increased reliability.

  7. Concurrent Wind Cooling in Power Transmission Lines

    SciTech Connect (OSTI)

    Jake P Gentle

    2012-08-01T23:59:59.000Z

    Idaho National Laboratory and the Idaho Power Company, with collaboration from Idaho State University, have been working on a project to monitor wind and other environmental data parameters along certain electrical transmission corridors. The combination of both real-time historical weather and environmental data is being used to model, validate, and recommend possibilities for dynamic operations of the transmission lines for power and energy carrying capacity. The planned results can also be used to influence decisions about proposed design criteria for or upgrades to certain sections of the transmission lines.

  8. EIS-0483: Estes to Flatiron Substation Transmission Lines Rebuild...

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

    EIS-0483: Estes to Flatiron Substation Transmission Lines Rebuild Project, Larimer County, Colorado EIS-0483: Estes to Flatiron Substation Transmission Lines Rebuild Project,...

  9. Request for Information on Permitting of Transmission Lines:...

    Energy Savers [EERE]

    Request for Information on Permitting of Transmission Lines: Federal Register Notice Volume 77, No. 38 - Feb. 27, 2012 Request for Information on Permitting of Transmission Lines:...

  10. EIS-0447: Champlain Hudson Power Express Transmission Line Project...

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

    47: Champlain Hudson Power Express Transmission Line Project, New York EIS-0447: Champlain Hudson Power Express Transmission Line Project, New York Summary This EIS evaluated the...

  11. EA-1880: Big Bend to Witten Transmission Line Project, South...

    Office of Environmental Management (EM)

    880: Big Bend to Witten Transmission Line Project, South Dakota EA-1880: Big Bend to Witten Transmission Line Project, South Dakota Summary The USDA Rural Utilities Service, with...

  12. EC Transmission Line Risk Identification and Analysis

    SciTech Connect (OSTI)

    Bigelow, Tim S [ORNL

    2012-04-01T23:59:59.000Z

    The purpose of this document is to assist in evaluating and planning for the cost, schedule, and technical project risks associated with the delivery and operation of the EC (Electron cyclotron) transmission line system. In general, the major risks that are anticipated to be encountered during the project delivery phase associated with the implementation of the Procurement Arrangement for the EC transmission line system are associated with: (1) Undefined or changing requirements (e.g., functional or regulatory requirements) (2) Underperformance of prototype, first unit, or production components during testing (3) Unavailability of qualified vendors for critical components Technical risks associated with the design and operation of the system are also identified.

  13. CHARACTERIZING LOSSES IN MICROSTRIP TRANSMISSION LINES Rashmi Pathak

    E-Print Network [OSTI]

    Timbie, Peter

    CHARACTERIZING LOSSES IN MICROSTRIP TRANSMISSION LINES by Rashmi Pathak A dissertation submitted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 Transmission Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Engineering) at the UNIVERSITY OF WISCONSIN­MADISON Summer 2005 #12;i Characterizing Losses in Transmission

  14. Radio-Frequency Interference (RFI) From Extra-High-Voltage (EHV) Transmission Lines

    E-Print Network [OSTI]

    Ellingson, Steven W.

    -current (HVAC) transmission lines; high-voltage direct-current (HVDC) transmission lines will be addressed

  15. Transmission line environmental assessment guidance document

    SciTech Connect (OSTI)

    Jackson, J.; Pentecost, E.; Muzzarelli, J.

    1994-01-01T23:59:59.000Z

    Since 1939, U.S. utility companies have been required to obtain a Presidential Permit to construct electric transmission lines that cross a U.S. border and connect with a foreign utility. The purpose of this document is to provide Presidential Permit applicants with two types of guidance: (1) on the type of environmental and project descriptive information needed to assess the potential impacts of the proposed and alternative actions and (2) on compliance with applicable federal and state regulations. The main three chapters present information on the purpose and content of this document (Chapter 1); legislative, regulatory, and consultation requirements for transmission line interconnect projects (Chapter 2); and identification of basic transmission system design parameters and environmental data requirements for analysis of potential impacts of the proposed action (Chapter 3). Chapter 3 also includes information on possible techniques or measures to mitigate impacts. Appendix A presents an overview of NEPA requirements and DOE`s implementing procedures. Appendix B summarizes information on legislation that may be applicable to transmission line projects proposed in Presidential Permit applications.

  16. EIS-0325: Schultz-Hanford Area Transmission Line Project, WA

    Broader source: Energy.gov [DOE]

    BPA proposes to construct a new 500-kilovolt (kV) transmission line in central Washington. This project would increase transmission system capacity north of Hanford.

  17. Factsheet: An Initiative to Help Modernize Natural Gas Transmission...

    Energy Savers [EERE]

    An Initiative to Help Modernize Natural Gas Transmission and Distribution Infrastructure Factsheet: An Initiative to Help Modernize Natural Gas Transmission and Distribution...

  18. QER Public Meeting in Pittsburgh, PA: Natural Gas: Transmission...

    Office of Environmental Management (EM)

    Pittsburgh, PA: Natural Gas: Transmission, Storage and Distribution QER Public Meeting in Pittsburgh, PA: Natural Gas: Transmission, Storage and Distribution Meeting Date and...

  19. Mode conversation losses in overmolded millimeter wave transmission lines

    E-Print Network [OSTI]

    Tax, David S. (David Samuel)

    2008-01-01T23:59:59.000Z

    Millimeter wave transmission lines are integral components for many important applications like nuclear fusion and NMR spectroscopy. In low loss corrugated transmission lines propagating the HE,1 mode with a high waveguide ...

  20. EIS-0421: Big Eddy-Knight Transmission Line

    Broader source: Energy.gov [DOE]

    BPA is proposing to build a new 500 kilovolt (kV) transmission line in Wasco County, Oregon and Klickitat County, Washington and a new substation in Klickitat County. The new BPA transmission line...

  1. Reference: RGL 83-09 Subject: POWER TRANSMISSION LINES

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Reference: RGL 83-09 Subject: POWER TRANSMISSION LINES Title: MARKING OF AERIAL POWER TRANSMISSION. 1. The marking of aerial power transmission lines, cables, and structures over the navigable waters LINES, CABLES, & STRUCTURES Issued: 07/13/83 Expires: 12/31/85 Originator: DAEN-CWO-N Description: ARMY

  2. Using Transmission Lines for Global On-Chip Communication

    E-Print Network [OSTI]

    Huang, Michael C.

    1 Using Transmission Lines for Global On-Chip Communication Aaron Carpenter, Jianyun Hu, Jie Xu-switched network-on-chip a less attractive option. An alternative solution uses well-engineered transmission lines as communication links. These transmission lines, along with simple, practical circuits using modern CMOS technol

  3. Asymmetric parametric amplification in nonlinear left-handed transmission lines

    E-Print Network [OSTI]

    Asymmetric parametric amplification in nonlinear left-handed transmission lines David A. Powell amplification in nonlinear left-handed transmission lines, which serve as model systems for nonlinear negative-handed regime. © 2009 American Institute of Physics. DOI: 10.1063/1.3089842 Left-handed transmission lines

  4. Multifrequency Wilkinson Power Divider Using Microstrip Nonuniform Transmission Lines

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Multifrequency Wilkinson Power Divider Using Microstrip Nonuniform Transmission Lines Mohammad desired frequencies. The proposed structure contains two Microstrip Nonuniform Transmission Lines (MNTLs­6] and using composite right/left-handed transmission line (CRLH) [7]. The main disadvantage of multistage

  5. New approach for modelling distributed MEMS transmission lines

    E-Print Network [OSTI]

    Akin, Tayfun

    New approach for modelling distributed MEMS transmission lines K. Topalli, M. Unlu, S. Demir, O for the distributed MEMS transmission line (DMTL) structures. In this new model, the MEMS bridges that are used as the loading elements of the DMTL structures are represented as low-impedance transmission lines, rather than

  6. Dispersion-free radial transmission lines

    DOE Patents [OSTI]

    Caporaso, George J. (Livermore, CA); Nelson, Scott D. (Patterson, CA)

    2011-04-12T23:59:59.000Z

    A dispersion-free radial transmission line ("DFRTL") preferably for linear accelerators, having two plane conductors each with a central hole, and an electromagnetically permeable material ("EPM") between the two conductors and surrounding a channel connecting the two holes. At least one of the material parameters of relative magnetic permeability, relative dielectric permittivity, and axial width of the EPM is varied as a function of radius, so that the characteristic impedance of the DFRTL is held substantially constant, and pulse transmission therethrough is substantially dispersion-free. Preferably, the EPM is divided into concentric radial sections, with the varied material parameters held constant in each respective section but stepwise varied between sections as a step function of the radius. The radial widths of the concentric sections are selected so that pulse traversal time across each section is the same, and the varied material parameters of the concentric sections are selected to minimize traversal error.

  7. Multi-transmission-line-beam interactive system

    SciTech Connect (OSTI)

    Figotin, Alexander; Reyes, Guillermo [Department of Mathematics, University of California at Irvine, Irvine, California 92697-3875 (United States)] [Department of Mathematics, University of California at Irvine, Irvine, California 92697-3875 (United States)

    2013-11-15T23:59:59.000Z

    We construct here a Lagrangian field formulation for a system consisting of an electron beam interacting with a slow-wave structure modeled by a possibly non-uniform multiple transmission line (MTL). In the case of a single line we recover the linear model of a traveling wave tube due to J. R. Pierce. Since a properly chosen MTL can approximate a real waveguide structure with any desired accuracy, the proposed model can be used in particular for design optimization. Furthermore, the Lagrangian formulation provides: (i) a clear identification of the mathematical source of amplification, (ii) exact expressions for the conserved energy and its flux distributions obtained from the Noether theorem. In the case of uniform MTLs we carry out an exhaustive analysis of eigenmodes and find sharp conditions on the parameters of the system to provide for amplifying regimes.

  8. Giant vacuum forces via transmission lines

    E-Print Network [OSTI]

    Ephraim Shahmoon; Igor Mazets; Gershon Kurizki

    2014-07-23T23:59:59.000Z

    Quantum electromagnetic fluctuations induce forces between neutral particles, known as the van der Waals (vdW) and Casimir interactions. These fundamental forces, mediated by virtual photons from the vacuum, play an important role in basic physics and chemistry, and in emerging technologies involving, e.g. micro-electromechanical systems or quantum information processing. Here we show that these interactions can be enhanced by many orders of magnitude upon changing the character of the mediating vacuum-modes. By considering two polarizable particles in the vicinity of any standard electric transmission line, along which photons can propagate in one dimension (1d), we find a much stronger and longer-range interaction than in free-space. This enhancement may have profound implications on many-particle and bulk systems, and impact the quantum technologies mentioned above. The predicted giant vacuum force is estimated to be measurable in a coplanar waveguide line.

  9. Method for bonding a transmission line to a downhole tool

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Fox, Joe (Spanish Fork, UT)

    2007-11-06T23:59:59.000Z

    An apparatus for bonding a transmission line to the central bore of a downhole tool includes a pre-formed interface for bonding a transmission line to the inside diameter of a downhole tool. The pre-formed interface includes a first surface that substantially conforms to the outside contour of a transmission line and a second surface that substantially conforms to the inside diameter of a downhole tool. In another aspect of the invention, a method for bonding a transmission line to the inside diameter of a downhole tool includes positioning a transmission line near the inside wall of a downhole tool and placing a mold near the transmission line and the inside wall. The method further includes injecting a bonding material into the mold and curing the bonding material such that the bonding material bonds the transmission line to the inside wall.

  10. Microstrip transmission line tapers on ferrites

    SciTech Connect (OSTI)

    Albuquerque, M.R.; dAssuncao, A.G.; Lima, F. [Departamento de Engenharia Eletrica, Universidade Federal do Rio Grande do Norte, 59072-970 Natal, RN (Brazil)] [Departamento de Engenharia Eletrica, Universidade Federal do Rio Grande do Norte, 59072-970 Natal, RN (Brazil)

    1997-04-01T23:59:59.000Z

    The spectral domain approach is employed to perform a theoretical investigation of tapered microstrip lines on magnetized ferrite substrates. A linear variation of the conducting strip width along the direction of propagation is considered. The analysis takes into account the effects of the applied dc magnetic bias field in the transmission characteristics of these structures. The properties of the taper are determined by a model based on a segmentation of the considered line into uniform microstrip line subsections. Normalized phase constants and characteristic impedances are obtained by using the Hertz vector potentials method and Galerkin numerical technique. Numerical results are presented to show the taper input parameters as a function of the load impedance, geometrical dimensions, operating frequency, and ferrite parameters, considering the orientation and magnitude changes of the biasing magnetic-field {bold H}{sub 0}. The results agree fairly well with those available in the literature for tapered microstrip lines on isotropic dielectric substrates. {copyright} {ital 1997 American Institute of Physics.}

  11. EIS-0474: Southline Transmission Line Project; Arizona and New Mexico

    Broader source: Energy.gov [DOE]

    DOE’s Western Area Power Administration is preparing this EIS to evaluate the environmental impacts of the proposed Southline Transmission Project, which would consist of a new 225-mile transmission line between existing substations at Afton, New Mexico, and Apache, Arizona, and improvements to approximately 130 miles of existing transmission lines between the Apache and Saguaro, Arizona substations.

  12. Structural Optimization of High Voltage Transmission Line Towers considering

    E-Print Network [OSTI]

    Colominas, Ignasi

    Structural Optimization of High Voltage Transmission Line Towers considering Continuum and Discrete/or to common designs largely repeated (e.g. automotive compo- nents), and high voltage transmission towers can than conventional designs of high voltage transmission line towers. The optimization model proposed

  13. Nonlinear transmission line based electron beam driver

    SciTech Connect (OSTI)

    French, David M.; Hoff, Brad W.; Tang Wilkin; Heidger, Susan; Shiffler, Don [Directed Energy Directorate, Air Force Research Laboratory, Kirtland AFB, New Mexico 87117 (United States); Allen-Flowers, Jordan [Program in Applied Mathematics, University of Arizona, Tucson, Arizona 85721 (United States)

    2012-12-15T23:59:59.000Z

    Gated field emission cathodes can provide short electron pulses without the requirement of laser systems or cathode heating required by photoemission or thermionic cathodes. The large electric field requirement for field emission to take place can be achieved by using a high aspect ratio cathode with a large field enhancement factor which reduces the voltage requirement for emission. In this paper, a cathode gate driver based on the output pulse train from a nonlinear transmission line is experimentally demonstrated. The application of the pulse train to a tufted carbon fiber field emission cathode generates short electron pulses. The pulses are approximately 2 ns in duration with emission currents of several mA, and the train contains up to 6 pulses at a frequency of 100 MHz. Particle-in-cell simulation is used to predict the characteristic of the current pulse train generated from a single carbon fiber field emission cathode using the same technique.

  14. Radio frequency communication system utilizing radiating transmission lines

    DOE Patents [OSTI]

    Struven, Warren C. (San Carlos, CA)

    1984-01-01T23:59:59.000Z

    A radio communication system for use in tunnels, mines, buildings or other shielded locations in which a pair of radiating transmission lines (30), (31) extend through such location in spaced coextensive relation to each other. Each transmission line (30), (31) has at least one unidirectional amplifier (32), (33) interposed therein with the sense of the unidirectional amplifier (32) of one transmission line (30) being opposite to the sense of the unidirectional amplifier (33) of the other transmission line (31). Each of the amplifiers (32), (33) has a gain which is less than the coupling loss between the transmission lines (30), (31). Two or more mobile transceivers (35) in the location served by the system are coupled to the transmission lines (30), (31) by electromagnetic wave propagation in space in order to communicate directly with each other at a given radio frequency within the frequency range of the system.

  15. EIS-0317: Kangley-Echo Lake Transmission Line Project

    Broader source: Energy.gov [DOE]

    This EIS analyzes BPA's proposal to build a new transmission line to accommodate increasing demand for electricity and ensure reliability in the Puget Sound area.

  16. Radio-Frequency Inverters With Transmission-Line Input Networks

    E-Print Network [OSTI]

    Phinney, Joshua W.

    A soft-switching inverter topology (the Class Phi ) is presented which draws dc source current through a transmission line or a lumped-network approximation of a distributed line. By aligning the inverter switching frequency ...

  17. Lovell-Yellowtail transmission line rebuild project, Western...

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

    on Flickr. Western is rebuilding the Lovell-to-Yellowtail No. 1 and No. 2 115-kV transmission lines. The 94-circuit-miles of lines are located between Lovell, Wyo., and Yellowtail...

  18. Online Transmission Line Loadability Assessment Using Synchrophasor Measurements

    E-Print Network [OSTI]

    Liberzon, Daniel

    a stable operation. Transmission line loading limits are also essential to deter- mine locational marginal loading margins provide a useful metric to operate the power sys- tem to satisfy demands while ensuring prices in power markets. Therefore, the assessment of transmission line loadability under various

  19. EIS-0101: Thermopolis, Alcova, Casper Transmission Line Project

    Broader source: Energy.gov [DOE]

    The Western Area Power Administration developed this statement to evaluate the environmental impacts of constructing, operating and maintaining a 230-kilovolt transmission line between Thermopolis, Wyoming, and Alcova, Wyoming, and a 230/345-kilovolt transmission line between Alcova, Wyoming, and Casper, Wyoming.

  20. Nonlinear Free Vibrations of Coupled Spans of Overhead Transmission Lines

    E-Print Network [OSTI]

    Rienstra, Sjoerd W.

    -elastic instability is known as galloping [1­5]. For high enough amplitudes neighbouring conductors may get close of the phenomenon of galloping, which is a high amplitude periodic oscillation of overhead transmission lines due for galloping control. 1 Introduction Overhead transmission lines for transport of high-voltage electricity

  1. Hyperreal Waves on Transfinte, Terminated, Distortionless and Lossless, Transmission Lines

    E-Print Network [OSTI]

    A. H. Zemanian

    2004-06-10T23:59:59.000Z

    A prior work (see Chapter 8 of the book, ``Graphs and Networks: Transfinite and Nonstandard,'' Birkhauser-Boston, Cambridge, Mass., USA, 2004) examined the propagation of an electromagnetic wave on a transfinite transmission line, transfinite in the sense that infinitely many one-way infinite transmission lines are connected in cascade. That there are infinitely many such one-way infinite lines results in the wave propagating without ever reflecting at some discontinuity. The present work examines the cascade where the cascade terminates after only finitely many one-way infinite transmission lines, with the result that reflected waves are now produced at both the far end as well as at the initial end of the transfinite transmission line. The question of whether the reflected waves are infini tesimal or appreciable and whether they sum to an infinitesimal or appreciable amount are resolved for both distortionless and lossless lines. Finally, the generalizations to higher ranks of transfiniteness is briefly summarized.

  2. Africa planned gas lines will meet future demand

    SciTech Connect (OSTI)

    Not Available

    1991-11-01T23:59:59.000Z

    The burgeoning European market for natural gas is expected to create major gas line construction. The potential for North Africa looks particularly promising in 1991. Italy's ENI has proposed a 6,000-km (3,728-mi) gas network in North Africa to connect gas-rich Libya and Algeria with Morocco and Mauritania, making large volumes available to the European market. According to the proposal, a gas line would run from the Sirte Basin in Libya west to Mauritania. Extending the line eastward through Egypt and on to the Arabian Peninsula would provide export access. In this paper initial studies are examine reserve projections for the next 20 years, then based on results, a transmission/distribution network will be designed, including an offshore gathering system.

  3. EA-1946: Salem-Albany Transmission Line Rebuild Project; Polk...

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

    rebuild of the 24-mile Salem-Albany No. 1 and 28-mile Salem-Albany No. 2 transmission lines between Salem and Albany, Oregon. Additional information is available at the...

  4. EA-1891: Alvey-Fairview Transmission Line Rebuild Project, Oregon

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts of a proposal to rebuild DOE’s Bonneville Power Administration’s Alvey-Fairview No. 1 230-kV transmission line located between Eugene, Oregon, and Coquille, Oregon.

  5. EIS-0106: Great Falls-Conrad Transmission Line Project, Montana

    Broader source: Energy.gov [DOE]

    The Western Area Power Administration prepared this EIS to evaluate the environmental impacts of the construction and operation of a 230-kilovolt transmission line from Great Falls, Montana, to Conrad, Montana.

  6. 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).

  7. EIS-0124: Conrad-Shelby Transmission Line Project, Montana

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy's Western Area Power Administration developed this statement to assess the environmental impact of adding a 230 kV transmission line between Conrad and Shelby, Montana and a new substation near Shelby to update the stressed electrical transmission system.

  8. EIS-0507: Boardman-Hemingway Transmission Line, Oregon and Idaho

    Broader source: Energy.gov [DOE]

    The Bureau of Land Management and the U.S. Forest Service are preparing, with DOE’s Bonneville Power Administration (BPA) as a cooperating agency, an EIS that evaluates the potential environmental impacts of a proposal to construct about 305 miles of 500-kV transmission line from northeast Oregon to southwest Idaho. BPA’s proposed action is to partially fund part the transmission line.

  9. Ground-based transmission line conductor motion sensor

    SciTech Connect (OSTI)

    Jacobs, M.L.; Milano, U.

    1988-08-22T23:59:59.000Z

    A ground-based-conductor motion-sensing apparatus is provided for remotely sensing movement of electric-power transmission lines, particularly as would occur during the wind-induced condition known as galloping. The apparatus is comprised of a motion sensor and signal-generating means which are placed underneath a transmission line and will sense changes in the electric field around the line due to excessive line motion. The detector then signals a remote station when a conditioning of galloping is sensed. The apparatus of the present invention is advantageous over the line-mounted sensors of the prior art in that it is easier and less hazardous to install. The system can also be modified so that a signal will only be given when particular conditions, such as specific temperature range, large-amplitude line motion, or excessive duration of the line motion, are occurring.

  10. Effect of asphaltene deposition on the internal corrosion in transmission lines

    SciTech Connect (OSTI)

    Morales, J.L.; Viloria, A. [Intevep, S.A., Caracas (Venezuela). Gerencia de Tecnologia de Materiales; Palacios T, C.A. [Corpoven S.A., Los Teques (Venezuela). Gerencia de Ingenieria de Petroleo

    1996-12-31T23:59:59.000Z

    Crude oil from Norte de Monagas field, in Venezuela, contains large amounts of asphaltenes, some of them are very unstable with tendency to precipitate. Because liquid is carried over from the separation process in the flow stations, asphaltenes are also present in the gas gathering and transmission lines, precipitating on inner wall of pipelines. The gas gathering and transmission lines contain gas with high partial pressures of CO{sub 2}, some H{sub 2}S and are water saturated; therefore inhibitors are used to control the internal corrosion. There is uncertainty on how inhibitors perform in the presence of asphaltene deposition. To protect the pipelines from external corrosion, cathodic protection is used. Since asphaltenes have polar properties, there exists an uncertainty on whether it enhances asphaltene precipitation and deposition. The purpose of this paper to describe the causes that enhance asphaltene deposition on gas and some of the preliminary result from an ongoing research project carried out by Intevep and Corpoven.

  11. Gila to North Gila Transmission Line Rebuild

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

    the new APS line. Western's land action entails acquiring up to an additional 50 feet right-of-way adjacent to the existing Gila Knob ROW, transferring a portion of the Gila...

  12. Optimization for Design and Operation of Natural Gas Transmission Networks

    E-Print Network [OSTI]

    Dilaveroglu, Sebnem 1986-

    2012-08-22T23:59:59.000Z

    and compressor stations. On an existing network, the model also optimizes the total flow through pipelines that satisfy demand to determine the best purchase amount of gas. A mixed integer nonlinear programming model for steady-state natural gas transmission...

  13. Transmission Line Boundary Protection Using Wavelet Transform and Neural Network

    E-Print Network [OSTI]

    use data from two ends. The non-unit protection such as distance relay, can not protect the entire end only. In this case, the relay at one end can protect the entire line length with no intentional1 Transmission Line Boundary Protection Using Wavelet Transform and Neural Network Nan Zhang

  14. Gateway West Transmission Line | 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 are8COaBulkTransmissionSitingProcess.pdf Jump1946865°,Park, Texas: EnergyGarvin County,|GasconadeOhio:Gateway

  15. Stand-off transmission lines and method for making same

    DOE Patents [OSTI]

    Tuckerman, D.B.

    1991-05-21T23:59:59.000Z

    Standoff transmission lines in an integrated circuit structure are formed by etching away or removing the portion of the dielectric layer separating the microstrip metal lines and the ground plane from the regions that are not under the lines. The microstrip lines can be fabricated by a subtractive process of etching a metal layer, an additive process of direct laser writing fine lines followed by plating up the lines or a subtractive/additive process in which a trench is etched over a nucleation layer and the wire is electrolytically deposited. Microstrip lines supported on freestanding posts of dielectric material surrounded by air gaps are produced. The average dielectric constant between the lines and ground plane is reduced, resulting in higher characteristic impedance, less crosstalk between lines, increased signal propagation velocities, and reduced wafer stress. 16 figures.

  16. Stand-off transmission lines and method for making same

    DOE Patents [OSTI]

    Tuckerman, David B. (Livermore, CA)

    1991-01-01T23:59:59.000Z

    Standoff transmission lines in an integrated circuit structure are formed by etching away or removing the portion of the dielectric layer separating the microstrip metal lines and the ground plane from the regions that are not under the lines. The microstrip lines can be fabricated by a subtractive process of etching a metal layer, an additive process of direct laser writing fine lines followed by plating up the lines or a subtractive/additive process in which a trench is etched over a nucleation layer and the wire is electrolytically deposited. Microstrip lines supported on freestanding posts of dielectric material surrounded by air gaps are produced. The average dielectric constant between the lines and ground plane is reduced, resulting in higher characteristic impedance, less crosstalk between lines, increased signal propagation velocities, and reduced wafer stress.

  17. Plains & Eastern Clean Line Transmission Line - Part 2 Application |

    Energy Savers [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 directed offOCHCO2:Introduction toManagementOPAM5Parabolic TroughPhotoCell StructureUraniumTransmission

  18. Multimode circuit QED with hybrid metamaterial transmission lines

    E-Print Network [OSTI]

    Daniel J. Egger; Frank K. Wilhelm

    2013-11-07T23:59:59.000Z

    Quantum transmission lines are a central to superconducting and hybrid quantum computing. Parallel to these developments are those of left-handed meta-materials. They have a wide variety of applications in photonics from the microwave to the visible range such as invisibility cloaks and perfect flat lenses. For classical guided microwaves, left-handed transmission lines have been proposed and studied on the macroscopic scale. We combine these ideas in presenting a left-handed/right-handed hybrid transmission line for applications in quantum optics on a chip. The resulting system allows circuit QED to reach a new regime: multi-mode ultra-strong coupling. Out of the many potential applications of this novel device, we discuss two; the preparation of multipartite entangled states and its use as a quantum simulator for the spin-boson model where a quantum phase transition is reached up to finite size-effects.

  19. Inductive gas line for pulsed lasers

    DOE Patents [OSTI]

    Benett, William J. (Livermore, CA); Alger, Terry W. (Tracy, CA)

    1985-01-01T23:59:59.000Z

    A gas laser having a metal inlet gas feed line assembly shaped as a coil, to function as an electrical inductance and therefore high impedance to pulses of electric current applied to electrodes at opposite ends of a discharge tube of a laser, for example. This eliminates a discharge path for the laser through the inlet gas feed line. A ferrite core extends through the coil to increase the inductance of the coil and provide better electric isolation. By elimination of any discharge breakdown through the gas supply, efficiency is increased and a significantly longer operating lifetime of the laser is provided.

  20. Inductive gas line for pulsed lasers

    DOE Patents [OSTI]

    Benett, W.J.; Alger, T.W.

    1982-09-29T23:59:59.000Z

    A gas laser having a metal inlet gas feed line assembly shaped as a coil, to function as an electrical inductance and therefore high impedance to pulses of electric current applied to electrodes at opposite ends of a discharge tube of a laser, for example. This eliminates a discharge path for the laser through the inlet gas feed line. A ferrite core extends through the coil to increase the inductance of the coil and provide better electric isolation. By elimination of any discharge breakdown through the gas supply, efficiency is increased and a significantly longer operating lifetime of the laser is provided.

  1. Self-monitoring high voltage transmission line suspension insulator

    DOE Patents [OSTI]

    Stemler, Gary E. (Vancouver, WA); Scott, Donald N. (Vancouver, WA)

    1981-01-01T23:59:59.000Z

    A high voltage transmission line suspension insulator (18 or 22) which monitors its own dielectric integrity. A dielectric rod (10) has one larger diameter end fitting attachable to a transmission line and another larger diameter end fitting attachable to a support tower. The rod is enclosed in a dielectric tube (14) which is hermetically sealed to the rod's end fittings such that a liquidtight space (20) is formed between the rod and the tube. A pressurized dielectric liquid is placed within that space. A discoloring dye placed within this space is used to detect the loss of the pressurized liquid.

  2. Characterization of Co-planar Silicon Transmission Lines with and without Slow-waveEffect

    E-Print Network [OSTI]

    Swaminathan, Madhavan

    Characterization of Co-planar Silicon Transmission Lines with and without Slow-waveEffect Woopoung and package transmission lines has been explained showing that the slow-wave mode cannot be represented only][2][3][4], characterization methods for package transmission lines have been applied to silicon transmission lines under

  3. TLSync: Support for Multiple Fast Barriers Using On-Chip Transmission Lines

    E-Print Network [OSTI]

    Prvulovic, Milos

    TLSync: Support for Multiple Fast Barriers Using On-Chip Transmission Lines Jungju Oh jungju in a transmission-line broadcast network, thus leaving the transmission line network free for non-modulated (base--Interconnection architectures General Terms Design, Performance Keywords Multi-core, Synchronization, Barrier, Transmission Line

  4. A Study on Crosstalk Analysis in Aggregative Transmission Lines with Turning Vias Tapobrata Bandyopadhyay1

    E-Print Network [OSTI]

    Swaminathan, Madhavan

    A Study on Crosstalk Analysis in Aggregative Transmission Lines with Turning Vias Tapobrata and signal integrity in high-speed signal channels is extremely important. Transmission lines and vias transmission lines (4 mil width) of different lengths arranged in bundles. The eight transmission line bundles

  5. PHYSICAL REVIEW B 88, 219904(E) (2013) Erratum: Parametric amplification in Josephson junction embedded transmission lines

    E-Print Network [OSTI]

    Friedland, Lazar

    embedded transmission lines [Phys. Rev. B 87, 144301 (2013)] Oded Yaakobi, Lazar Friedland, Chris Macklin

  6. Corruption of Pulsed Electric Thruster Voltage Fluctuation Measurements by Transmission Line

    E-Print Network [OSTI]

    Choueiri, Edgar

    Corruption of Pulsed Electric Thruster Voltage Fluctuation Measurements by Transmission Line to transmission line corruption--as an experimental example of the extent to which the power transmission line can termination resistance s Laplace variable V (t) transmission line driving signal Vn Laplace transform

  7. Field evaluation of the British Gas elastic-wave vehicle for detecting stress corrosion cracking in natural gas transmission pipelines. Final report, June 1995

    SciTech Connect (OSTI)

    Culbertson, D.L.; Whitney, C.E.

    1995-07-01T23:59:59.000Z

    The objective of this project was to provide the gas pipeline industry with a more comprehensive understanding of the capabilities of the elastic-wave, in-line inspection system developed by British Gas (BG) for detecting stress corrosion cracking (SCC) in natural gas transmission pipelines.

  8. Transmission line design manual. A guide for the investigation, development, and design of power transmission lines. Water resources technical pub

    SciTech Connect (OSTI)

    Farr, H.H.

    1980-01-01T23:59:59.000Z

    The purpose of the manual is to outline the various requirements for, and the procedures to be followed in the design of power transmission lines by the Bureau of Reclamation. U.S. Department of the Interior. Numerous design studies, which have been made on specific aspects of transmission line design, are included with explanations of their applications. Information is presented concerning such aspects as selection of type of construction, conductor sags and tensions, insulation, lightning protection, clearance patterns, galloping conductors, structure limitation and guying charts, and structure spotting. Structure design examples are limited to wood-pole construction. Interpretations of the National Electrical Safety Code and other codes are made as required.

  9. Natural Gas Transmission and Distribution Module This

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    They relate to (1) structural components of the model, (2) capacity expansion and pricing of transmission and distribution services, (3) Arctic pipelines, and (4) imports...

  10. Natural Gas Transmission and Distribution Module

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    They relate to (1) structural components of the model, (2) capacity expansion and pricing of transmission and distribution services, (3) Arctic pipelines, and (4) imports...

  11. RESONANCES FOR MICROSTRIP TRANSMISSION LINES HABIB AMMARI y AND FAOUZI TRIKI y

    E-Print Network [OSTI]

    Ammari, Habib

    RESONANCES FOR MICROSTRIP TRANSMISSION LINES #3; HABIB AMMARI y AND FAOUZI TRIKI y Abstract of the line goes to zero. Key words. microstrip transmission lines, waveguides, resonances, characteristic in mi- crostrip transmission lines mounted on planar open waveguides. Microstrip transmis- sion lines

  12. Damping of bending waves in truss beams by electrical transmission lines with PZT actuators

    E-Print Network [OSTI]

    Boyer, Edmond

    Damping of bending waves in truss beams by electrical transmission lines with PZT actuators F. dell of the truss beam with an electrical transmission line by a line distribution of PZT actuators. It has been-order transmission line, and that such a line is not suitable to damp bending waves. In the present paper, we propose

  13. EA-1960: Townsite Solar Project Transmission Line, Clark County, Nevada

    Broader source: Energy.gov [DOE]

    The Bureau of Land Management, with Western Area Power Administration as a cooperating agency, prepared an EA to evaluate potential impacts of a proposal to build and operate a 180-MW photovoltaic facility; a 220, 230, or 500 kV transmission line; and associated facilities in Clark County, Nevada.

  14. EIS-0090: Fort Peck-Havre Transmission Line Project, Montana

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy’s Western Area Power Administration prepared this statement to assess the potential environmental and socioeconomic implications of its proposed action to construct and operate a 230kV transmission line from Fort Peck to Havre, Montana, with three intermediate interconnecting substations.

  15. Free Vibrations of Coupled Spans of Overhead Transmission Lines

    E-Print Network [OSTI]

    Eindhoven, Technische Universiteit

    be interesting for galloping control. 1 Introduction Overhead transmission lines for transport of high, and maintained by cross wind. This aero­elastic instability is known as galloping [1, 2, 3, 4, 5]. For high enough amplitudes neighbouring conductors may touch each other and cause short circuit and structural

  16. Natural Gas Supply in Denmark -A Model of Natural Gas Transmission and the

    E-Print Network [OSTI]

    the economic structure of the Danish natural gas market is formulated mathematically giving a descriptionNatural Gas Supply in Denmark - A Model of Natural Gas Transmission and the Liberalized Gas Market of the markets of natural gas and electricity and the existence of an abundance of de-centralized combined heat

  17. Economics of Electric Compressors for Gas Transmission

    E-Print Network [OSTI]

    Schmeal, W. R.; Hibbs, J. J.

    Three new factors are coming together to motivate gas pipeline firms to consider electric motors for replacement of older reciprocating gas engines for compressor systems, and for new compressor installations. These factors are environmental...

  18. EIS-0164: Pacific Gas Transmission/Pacific Gas and Electric and Altamont Natural Gas Pipeline Project

    Broader source: Energy.gov [DOE]

    The Federal Energy Regulatory Commission (FERC) has prepared the PGT/PG&E and Altamont Natural Gas Pipeline Projects Environmental Impact Statement to satisfy the requirements of the National Environmental Policy Act. This project addresses the need to expand the capacity of the pipeline transmission system to better transfer Canadian natural gas to Southern California and the Pacific Northwest. The U.S. Department of Energy cooperated in the preparation of this statement because Section 19(c) of the Natural Gas Act applies to the Department’s action of authorizing import/export of natural gas, and adopted this statement by the spring of 1992. "

  19. EHV transmission line design opportunities for cost reduction

    SciTech Connect (OSTI)

    Kennon, R.E. (Electric Power Research Inst., Palo Alto, CA (USA)); Douglass, D.A. (Power Technologies, Inc., New York, NY (US))

    1990-04-01T23:59:59.000Z

    The design of transmission lines is often limited to a few standard conductors and structures in order to minimize the costs of engineering, construction, inventory, and speed of damage restoration. Certain design factors, such as unloaded conductor tensions, maximum allowable conductor temperatures, and phase spacing to avoid ice galloping induced flashovers, are also fixed. Limiting the designer's choices can be economic in certain situations but not in others. What makes economic sense in flat terrain or with a lightly loaded line may not be economic in hilly terrain or with a line whose electric load is consistently high. This paper considers a range of line optimization techniques which can be applied to decide whether standard or optimized line designs are appropriate. It is found that even simple methods of optimization can help the designer keep his costs to a minimum.

  20. ECEN 720 High-Speed Links Circuits and Systems Lab1 -Transmission Lines

    E-Print Network [OSTI]

    Palermo, Sam

    1 ECEN 720 High-Speed Links Circuits and Systems Lab1 - Transmission Lines Objective To learn transmission lines and time-domain refectometer (TDR). Introduction Wires are used to transmit clocks and data data communication chip design, the wires are often treated as transmission lines. Proper transmission

  1. Wireless Sensor Network for Electric Transmission Line Monitoring

    SciTech Connect (OSTI)

    Alphenaar, Bruce

    2009-06-30T23:59:59.000Z

    Generally, federal agencies tasked to oversee power grid reliability are dependent on data from grid infrastructure owners and operators in order to obtain a basic level of situational awareness. Since there are many owners and operators involved in the day-to-day functioning of the power grid, the task of accessing, aggregating and analyzing grid information from these sources is not a trivial one. Seemingly basic tasks such as synchronizing data timestamps between many different data providers and sources can be difficult as evidenced during the post-event analysis of the August 2003 blackout. In this project we investigate the efficacy and cost effectiveness of deploying a network of wireless power line monitoring devices as a method of independently monitoring key parts of the power grid as a complement to the data which is currently available to federal agencies from grid system operators. Such a network is modeled on proprietary power line monitoring technologies and networks invented, developed and deployed by Genscape, a Louisville, Kentucky based real-time energy information provider. Genscape measures transmission line power flow using measurements of electromagnetic fields under overhead high voltage transmission power lines in the United States and Europe. Opportunities for optimization of the commercial power line monitoring technology were investigated in this project to enable lower power consumption, lower cost and improvements to measurement methodologies. These optimizations were performed in order to better enable the use of wireless transmission line monitors in large network deployments (perhaps covering several thousand power lines) for federal situational awareness needs. Power consumption and cost reduction were addressed by developing a power line monitor using a low power, low cost wireless telemetry platform known as the ''Mote''. Motes were first developed as smart sensor nodes in wireless mesh networking applications. On such a platform, it has been demonstrated in this project that wireless monitoring units can effectively deliver real-time transmission line power flow information for less than $500 per monitor. The data delivered by such a monitor has during the course of the project been integrated with a national grid situational awareness visualization platform developed by Oak Ridge National Laboratory. Novel vibration energy scavenging methods based on piezoelectric cantilevers were also developed as a proposed method to power such monitors, with a goal of further cost reduction and large-scale deployment. Scavenging methods developed during the project resulted in 50% greater power output than conventional cantilever-based vibrational energy scavenging devices typically used to power smart sensor nodes. Lastly, enhanced and new methods for electromagnetic field sensing using multi-axis magnetometers and infrared reflectometry were investigated for potential monitoring applications in situations with a high density of power lines or high levels of background 60 Hz noise in order to isolate power lines of interest from other power lines in close proximity. The goal of this project was to investigate and demonstrate the feasibility of using small form factor, highly optimized, low cost, low power, non-contact, wireless electric transmission line monitors for delivery of real-time, independent power line monitoring for the US power grid. The project was divided into three main types of activity as follows; (1) Research into expanding the range of applications for non-contact power line monitoring to enable large scale low cost sensor network deployments (Tasks 1, 2); (2) Optimization of individual sensor hardware components to reduce size, cost and power consumption and testing in a pilot field study (Tasks 3,5); and (3) Demonstration of the feasibility of using the data from the network of power line monitors via a range of custom developed alerting and data visualization applications to deliver real-time information to federal agencies and others tasked with grid reliability (Tasks 6,8)

  2. Applications for Certificates for Electric, Gas, or Natural Gas Transmission Facilities (Ohio)

    Broader source: Energy.gov [DOE]

    An applicant for a certificate to site a major electric power, gas, or natural gas transmission facility shall provide a project summary and overview of the proposed project. In general, the...

  3. Particle trap for compressed gas insulated transmission systems

    DOE Patents [OSTI]

    Cookson, A.H.

    1984-04-26T23:59:59.000Z

    A particle trap is provided for gas insulated transmission lines having a central high voltage conductor supported within an outer coaxial conductive sheath by a dielectric support member. A cavity between the inner conductor and outer sheath is filled with a dielectric insulating gas. A cone-like particle deflector, mounted to the inner conductor, deflects moving particles away from the support member, to radially outer portions of the cavity. A conductive shield is disposed adjacent the outer sheath to form a field-free region in radially outer portions of the cavity, between the shield and the sheath. Particles traveling along the cavity are deflected by the cone-like deflector into the field-free region where they are held immobile. In a vertical embodiment, particles enter the field-free region through an upper end of a gap formed between shield and sheath members. In a horizontal embodiment, the deflector cone has a base which is terminated radially internally of the shield. Apertures in the shield located adjacent the deflector allow passage of deflected particles into the field-free region. The dielectric support member is thereby protected from contaminating particles that may otherwise come to rest thereon.

  4. Particle trap for compressed gas insulated transmission systems

    DOE Patents [OSTI]

    Cookson, Alan H. (Pittsburgh, PA)

    1985-01-01T23:59:59.000Z

    A particle trap is provided for gas insulated transmission lines having a central high voltage conductor supported within an outer coaxial conductive sheath by a dielectric support member. A cavity between the inner conductor and outer sheath is filled with a dielectric insulating gas. A cone-like particle deflector, mounted to the inner conductor, deflects moving particles away from the support member, to radially outer portions of the cavity. A conductive shield is disposed adjacent the outer sheath to form a field-free region in radially outer portions of the cavity, between the shield and the sheath. Particles traveling along the cavity are deflected by the cone-like deflector into the field-free region where they are held immobile. In a vertical embodiment, particles enter the field-free region through an upper end of a gap formed between shield and sheath members. In a horizontal embodiment, the deflector cone has a base which is terminated radially internally of the shield. Apertures in the shield located adjacent the deflector allow passage of deflected particles into the field-free region. The dielectric support member is thereby protected from contaminating particles that may otherwise come to rest thereon.

  5. An Inverse Problem for Toeplitz Matrices and the Synthesis of Discrete Transmission Lines

    E-Print Network [OSTI]

    Allen, Jont

    An Inverse Problem for Toeplitz Matrices and the Synthesis of Discrete Transmission Lines Russel E and inverse problems for a transmission line which consists of piecewise constant components. Knowing the impulse response of the transmission line, we can calculate the capaci- tance taper of the line, and vice

  6. Calculation of Ramp Response of Lossy Transmission Lines Using Two-port Network Functions

    E-Print Network [OSTI]

    Pedram, Massoud

    1 Calculation of Ramp Response of Lossy Transmission Lines Using Two-port Network Functions Payam-port representation of the transmission line and accounts for the output resistance of the driver and the line response of lossy transmission line which expands the reciprocal of transfer function of the system

  7. Optimized Waveform Relaxation Methods for the Longitudinal Partitioning of Transmission Lines

    E-Print Network [OSTI]

    Gander, Martin J.

    1 Optimized Waveform Relaxation Methods for the Longitudinal Partitioning of Transmission Lines convergence. Here we consider transmission line circuits since they represent an important part of a Spice type circuit solver. For transmission lines, the coupling between different lines is relatively weak

  8. Optimal structure of gas transmission trunklines

    E-Print Network [OSTI]

    2009-01-07T23:59:59.000Z

    Littoral Côte d'Opale, Institut des mers du Nord, 59140 Dunkerque, France Email: .... states that the compression ratios giving the minimum energy consumption ...... [9] Cheeseman A. P., How to optimize Gas Pipeline Design by computer, Oil &.

  9. Analytical time domain electromagnetic field propagators and closed-form solutions for transmission lines

    E-Print Network [OSTI]

    Jeong, Jaehoon

    2009-05-15T23:59:59.000Z

    An analytical solution for the coupled telegrapher’s equations in terms of the voltage and current on a homogeneous lossy transmission line and multiconductor transmission line is presented. The resulting telegrapher’s equation solution is obtained...

  10. ACOUSTIC DETECTING AND LOCATING GAS PIPE LINE INFRINGEMENT

    SciTech Connect (OSTI)

    John L. Loth; Gary J. Morris; George M. Palmer; Richard Guiler; Patrick Browning

    2004-10-31T23:59:59.000Z

    The extensive network of high-pressure natural gas transmission pipelines covering the United States provides an important infrastructure for our energy independence. Early detection of pipeline leaks and infringements by construction equipment, resulting in corrosion fractures, presents an important aspect of our national security policy. The National Energy Technology Laboratory Strategic Center for Natural Gas (SCVG) is and has been funding research on various applicable techniques. The WVU research team has focused on monitoring pipeline background acoustic signals generated and transmitted by gas flowing through the gas inside the pipeline. In case of a pipeline infringement, any mechanical impact on the pipe wall, or escape of high-pressure gas, generates acoustic signals traveling both up and down stream through the gas. Sudden changes in flow noise are detectable with a Portable Acoustic Monitoring Package (PAMP), developed under this contract. It incorporates a pressure compensating microphone and a signal- recording device. Direct access to the gas inside the line is obtained by mounting such a PAMP, with a 1/2 inch NPT connection, to a pipeline pressure port found near most shut-off valves. An FFT of the recorded signal subtracted by that of the background noise recorded one-second earlier appears to sufficiently isolate the infringement signal to allow source interpretation. Using cell phones for data downloading might allow a network of such 1000-psi rated PAMP's to acoustically monitor a pipeline system and be trained by neural network software to positively identify and locate any pipeline infringement.

  11. ACOUSTIC DETECTING AND LOCATING GAS PIPE LINE INFRINGEMENT

    SciTech Connect (OSTI)

    John L. Loth; Gary J. Morris; George M. Palmer; Richard Guiler; Patrick Browning

    2004-12-01T23:59:59.000Z

    The extensive network of high-pressure natural gas transmission pipelines covering the United States provides an important infrastructure for our energy independence. Early detection of pipeline leaks and infringements by construction equipment, resulting in corrosion fractures, presents an important aspect of our national security policy. The National Energy Technology Laboratory Strategic Center for Natural Gas (SCVG) is and has been funding research on various applicable techniques. The WVU research team has focused on monitoring pipeline background acoustic signals generated and transmitted by gas flowing through the gas inside the pipeline. In case of a pipeline infringement, any mechanical impact on the pipe wall, or escape of high-pressure gas, generates acoustic signals traveling both up and down stream through the gas. Sudden changes in flow noise are detectable with a Portable Acoustic Monitoring Package (PAMP), developed under this contract. It incorporates a pressure compensating microphone and a signal- recording device. Direct access to the gas inside the line is obtained by mounting such a PAMP, with a 1/2 inch NPT connection, to a pipeline pressure port found near most shut-off valves. An FFT of the recorded signal subtracted by that of the background noise recorded one-second earlier appears to sufficiently isolate the infringement signal to allow source interpretation. Using cell phones for data downloading might allow a network of such 1000-psi rated PAMP's to acoustically monitor a pipeline system and be trained by neural network software to positively identify and locate any pipeline infringement.

  12. Coupling mid-infrared light from a photonic crystal waveguide to metallic transmission lines

    SciTech Connect (OSTI)

    Blanco-Redondo, Andrea, E-mail: andrea.blanco@tecnalia.com, E-mail: r.hillenbrand@nanogune.eu [ICT-European Software Institute Division, Tecnalia, Ibaizabal Bidea, Ed. 202, 48170 Zamudio, Bizkaia (Spain) [ICT-European Software Institute Division, Tecnalia, Ibaizabal Bidea, Ed. 202, 48170 Zamudio, Bizkaia (Spain); Dpto. Electronica y Telecom., E.T.S. Ingeniería Bilbao, UPV/EHU, Alda. Urquijo, 48103 Bilbao, Bizkaia (Spain); Sarriugarte, Paulo [Nanooptics Group, CIC nanoGUNE Consolider, 20018 Donostia–San Sebastian, Gipuzkoa (Spain)] [Nanooptics Group, CIC nanoGUNE Consolider, 20018 Donostia–San Sebastian, Gipuzkoa (Spain); Garcia-Adeva, Angel [Dpto. Fisica Aplicada I, E.T.S. Ingeniería de Bilbao, UPV-EHU, Alda. Urquijo, 48103 Bilbao, Bizkaia (Spain)] [Dpto. Fisica Aplicada I, E.T.S. Ingeniería de Bilbao, UPV-EHU, Alda. Urquijo, 48103 Bilbao, Bizkaia (Spain); Zubia, Joseba [Dpto. Electronica y Telecom., E.T.S. Ingeniería Bilbao, UPV/EHU, Alda. Urquijo, 48103 Bilbao, Bizkaia (Spain)] [Dpto. Electronica y Telecom., E.T.S. Ingeniería Bilbao, UPV/EHU, Alda. Urquijo, 48103 Bilbao, Bizkaia (Spain); Hillenbrand, Rainer, E-mail: andrea.blanco@tecnalia.com, E-mail: r.hillenbrand@nanogune.eu [Nanooptics Group, CIC nanoGUNE Consolider, 20018 Donostia–San Sebastian, Gipuzkoa (Spain) [Nanooptics Group, CIC nanoGUNE Consolider, 20018 Donostia–San Sebastian, Gipuzkoa (Spain); IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Bizkaia (Spain)

    2014-01-06T23:59:59.000Z

    We propose and theoretically study a hybrid structure consisting of a photonic crystal waveguide (PhC-wg) and a two-wire metallic transmission line (TL), engineered for efficient transfer of mid-infrared (mid-IR) light between them. An efficiency of 32% is obtained for the coupling from the transverse magnetic (TM) photonic mode to the symmetric mode of the TL, with a predicted intensity enhancement factor of 53 at the transmission line surface. The strong coupling is explained by the small phase velocity mismatch and sufficient spatial overlapping between the modes. This hybrid structure could find applications in highly integrated mid-IR photonic-plasmonic devices for biological and gas sensing, among others.

  13. Non-Linear Transmission Lines for Pulse Shapingin Silicon Ehsan Afshari and Ali Hajimii

    E-Print Network [OSTI]

    Hajimiri, Ali

    Non-Linear Transmission Lines for Pulse Shapingin Silicon Ehsan Afshari and Ali Hajimii California.Non-hear transmission lines (NLTLs)sharpening either of the rising or the Falling edge of a pulse have beenT. In this paper, the propagation of soliton waves in a non-linear transmission line will be studied. Then, we

  14. Transient Simulation of On-Chip Transmission Lines via Exact Pole Extraction

    E-Print Network [OSTI]

    Friedman, Eby G.

    Transient Simulation of On-Chip Transmission Lines via Exact Pole Extraction Guoqing Chen and Eby G response at the far end of a transmission line is proposed in this paper. Unlike approximating the poles, on-chip interconnects exhibit significant transmission line behavior. An efficient solution

  15. Minimizing Simultaneous Switching Noise at Reduced Power with Power Transmission Lines for

    E-Print Network [OSTI]

    Swaminathan, Madhavan

    Minimizing Simultaneous Switching Noise at Reduced Power with Power Transmission Lines for High] by replacing the power plane structure with a power transmission line (PTL). In this paper, a new power switching noise; power transmission line I. INTRODUCTION The rapid increase in data rates and transistor

  16. AN INFINITE DIMENSIONAL DESCRIPTOR SYSTEM MODEL FOR ELECTRICAL CIRCUITS WITH TRANSMISSION LINES

    E-Print Network [OSTI]

    Reis, Timo

    AN INFINITE DIMENSIONAL DESCRIPTOR SYSTEM MODEL FOR ELECTRICAL CIRCUITS WITH TRANSMISSION LINES TIMO REIS Abstract. In this paper a model of linear electrical circuits with transmission lines is de-coupled with the telegraph equations who describe the behavior of the transmission lines. The resulting system of equations

  17. A new expression for the ground transient resistance matrix elements of multiconductor overhead transmission lines

    E-Print Network [OSTI]

    Loyka, Sergey

    transmission lines F. Rachidi a, *, S.L. Loyka b , C.A. Nucci c , M. Ianoz a a Swiss Federal Institute The ground impedance matrix elements of a multiconductor overhead transmission line do not have analytical-singular, and which describe, within the limits of transmission line theory, both the early-time and late

  18. ECEN 720 High-Speed Links: Circuits and Systems Lab1 -Transmission Lines

    E-Print Network [OSTI]

    Palermo, Sam

    1 ECEN 720 High-Speed Links: Circuits and Systems Lab1 - Transmission Lines Objective To learn about transmission lines and time-domain reflectometer (TDR). Introduction Wires are used to transmit. In high speed data communication chip design, the wires are often treated as transmission lines. Proper

  19. Longitudinal Partitioning Based Waveform Relaxation Algorithm for Transient Analysis of Long Delay Transmission Lines

    E-Print Network [OSTI]

    Roy, Sourajeet

    Transmission Lines Sourajeet Roy and Anestis Dounavis Department of Electrical and Computer Engineering networks. The proposed methodology represents lossy transmission lines as a cascade of lumped circuit of characteristics. This allows the transmission line to be naturally partitioned into smaller, weakly coupled

  20. Multilayer Coplanar Waveguide Transmission Lines Compatible with Standard Digital Silicon Technologies

    E-Print Network [OSTI]

    Wu, Hui

    Multilayer Coplanar Waveguide Transmission Lines Compatible with Standard Digital Silicon, Email: hwu@ece.rochester.edu Abstract-- On-chip transmission lines in silicon technologies suffer from. In this paper, we demonstrate that multilayer coplanar waveguide (MCPW) transmission lines can be utilized

  1. PHYSICAL REVIEW B 87, 144301 (2013) Parametric amplification in Josephson junction embedded transmission lines

    E-Print Network [OSTI]

    Friedland, Lazar

    transmission lines O. Yaakobi,1,* L. Friedland,2 C. Macklin,3 and I. Siddiqi3 1 INRS-EMT, 1650 Boul. Lionel; published 1 April 2013) An electronic transmission line that contains an array of nonlinear elements of the node flux along the transmission line is derived. It is shown that due to the nonlinearity

  2. Multistability in nonlinear left-handed transmission lines David A. Powell,a

    E-Print Network [OSTI]

    Multistability in nonlinear left-handed transmission lines David A. Powell,a Ilya V. Shadrivov; published online 2 July 2008 Employing a nonlinear left-handed transmission line as a model system, we, which at higher power may result in chaotic dynamics of the transmission line. © 2008 American Institute

  3. Implementation of Power Transmission Lines to Field Programmable Gate Array ICs for Managing Signal

    E-Print Network [OSTI]

    Swaminathan, Madhavan

    Implementation of Power Transmission Lines to Field Programmable Gate Array ICs for Managing Signal employs power transmission lines (PTL) that supply power to integrated circuits instead of using is able to reduce SSN and enhance power and signal integrity. Pseudo-balanced power transmission line (PB

  4. A Design Space Exploration of Transmission-Line Links for On-Chip Interconnect

    E-Print Network [OSTI]

    Huang, Michael C.

    A Design Space Exploration of Transmission-Line Links for On-Chip Interconnect Aaron Carpenter-performance interconnect fabric that is energy-efficient. Well-engineered transmission line-based commu- nication systems and a much better energy profile than a conventional mesh interconnect. Keywords: Transmission Line, On

  5. An automotive transmission for automotive gas turbine power plants

    SciTech Connect (OSTI)

    Polak, J.C.

    1980-01-01T23:59:59.000Z

    A joint government-industry program was initiated to investigate the two-shaft gas turbine concept as an alternative to present-day automotive powerplants. Both were examined, compared and evaluated on the basis of the federal automotive driving cycle in terms of specific fuel/power/speed characteristics of the engine and the efficiency and performance of the transmission. The results showed that an optimum match of vehicle, gas turbine engine, and conventional automatic transmission is capable of a significant improvement in fuel economy. This system offers many advantages that should lead to its wide acceptance in future vehicles.

  6. Field quality measurements of a 2-Tesla transmission line magnet

    SciTech Connect (OSTI)

    Velev, G.V.; Foster, W.; Kashikhin, V.; Mazur, P.; Oleck, A.; Piekarz, H.; Schlabach, P.; Sylvester, C.; /Fermilab; Wake, M.; /KEK, Tsukuba

    2005-09-01T23:59:59.000Z

    A prototype 2-Tesla superconducting transmission line magnet for future hadron colliders was designed, built and tested at Fermilab. The 1.5 m long, combined-function gradient-dipole magnet has a vertical pole aperture of 20 mm. To measure the magnetic field quality in such a small magnet aperture, a specialized rotating coil of 15.2 mm diameter, 0.69 m long was fabricated. Using this probe, a program of magnetic field quality measurements was successfully performed. Results of the measurements are presented and discussed.

  7. EIS-0256: Sierra Pacific Power Company Alturas Transmission Line Project (adopted from BLM)

    Broader source: Energy.gov [DOE]

    This EIS evaluates the environmental setting and consequences of the construction and operation of the proposal Alturas Transmission Line Project. Sierra Pacific Power Company (SPPCO) has proposed this electric power transmission line to improve the existing operational capacity and reliability of its power transmission system and provide for anticipated growth in demand for electric power.

  8. Number and propagation of line outages in cascading events in electric power transmission systems

    E-Print Network [OSTI]

    Dobson, Ian

    Number and propagation of line outages in cascading events in electric power transmission systems that progressively weakens the system. Large electric power transmission systems occasionally have cascading failures of transmission lines. The multiple mechanisms involved these cascading outages are many and varied, and the power

  9. Wild Horse 69-kV transmission line environmental assessment

    SciTech Connect (OSTI)

    NONE

    1996-12-01T23:59:59.000Z

    Hill County Electric Cooperative Inc. (Hill County) proposes to construct and operate a 69-kV transmission line from its North Gildford Substation in Montana north to the Canadian border. A vicinity project area map is enclosed as a figure. TransCanada Power Corporation (TCP), a Canadian power-marketing company, will own and construct the connecting 69-kV line from the international border to Express Pipeline`s pump station at Wild Horse, Alberta. This Environmental Assessment is prepared for the Department of Energy (DOE) as lead federal agency to comply with the requirements of the National Environmental Policy Act (NEPA), as part of DOE`s review and approval process of the applications filed by Hill County for a DOE Presidential Permit and License to Export Electricity to a foreign country. The purpose of the proposed line is to supply electric energy to a crude oil pump station in Canada, owned by Express Pipeline Ltd. (Express). The pipeline would transport Canadian-produced oil from Hardisty, Alberta, Canada, to Caster, Wyoming. The Express Pipeline is scheduled to be constructed in 1996--97 and will supply crude oil to refineries in Wyoming and the midwest.

  10. Superconducting magnetic energy storage for BPA transmission-line stabilization

    SciTech Connect (OSTI)

    Rogers, J.D.; Barron, M.H.; Boenig, H.J.; Criscuolo, A.L.; Dean, J.W.; Schermer, R.I.

    1982-01-01T23:59:59.000Z

    The Bonneville Power Administration (BPA) operates the electrical transmission system that joins the Pacific Northwest with southern California. A 30 MJ (8.4 kWh) Superconducting Magnetic Energy Storage (SMES) unit with a 10 MW converter is being installed at the Tacoma Substation to provide system damping for low frequency oscillations of 0.35 Hz. The integrated system status is described and reviewed. Components included in the system are the superconducting coil, seismically mounted in an epoxy fiberglass nonconducting dewar; a helium refrigerator; a heat rejection subsystem; a high pressure gas recovery subsystem; a liquid nitrogen trailer; the converter with power transformers and switchgear; and a computer system for remote microwave link operation of the SMES unit.

  11. EA-1896: Williston to Stateline Transmission Line Project, Mountrail Williams Electric Cooperative, Williston, North Dakota

    Broader source: Energy.gov [DOE]

    DOE’s Western Area Power Administration is preparing this EA to evaluate the environmental impacts of interconnecting the proposed Stateline I transmission line, in Williston, North Dakota, to Western’s transmission system.

  12. 744 IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 40, NO. 3, MARCH 2005 Nonlinear Transmission Lines

    E-Print Network [OSTI]

    Afshari, Ehsan

    744 IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 40, NO. 3, MARCH 2005 Nonlinear Transmission Lines--Nonlinear transmission lines (NLTL) are used for pulse shaping. We developed the theory of pulse propagation through sharpening, nonlinear effects, nonlinear transmission lines, pulse shaping, soli- tons, transmission lines. I

  13. A multiconductor model for determining the response of power transmission and distribution lines to a high altitude electromagnetic pulse (HEMP)

    SciTech Connect (OSTI)

    Tesche, F.M.; Barnes, P.R.

    1988-01-01T23:59:59.000Z

    A calculation model for electromagnetic pulse coupling to transmission and transmission line is discussed. Sample calculations for a 345 kV transmission line are given. 3 refs., 8 figs.

  14. Polar On-Line Acquisition Relay and Transmission System (POLARATS)

    SciTech Connect (OSTI)

    Yuracko, K.

    2004-07-15T23:59:59.000Z

    POLARATS (Polar On-Line Acquisition Relay And Transmission System) is being developed by YAHSGS LLC (YAHSGS) and Oak Ridge National Laboratory (ORNL) to provide remote, unattended monitoring of environmental parameters under harsh environmental conditions. In particular, instrumental design and engineering is oriented towards protection of human health in the Arctic, and with the additional goal of advancing Arctic education and research. POLARATS will obtain and transmit environmental data from hardened monitoring devices deployed in locations important to understanding atmospheric and aquatic pollutant migration as it is biomagnified in Arctic food chains. An Internet- and personal computer (PC)-based educational module will provide real time sensor data, on-line educational content, and will be integrated with workbooks and textbooks for use in middle and high school science programs. The educational elements of POLARATS include an Internet-based educational module that will instruct students in the use of the data and how those data fit into changing Arctic environments and food chains. POLARATS will: (1) Enable students, members of the community, and scientific researchers to monitor local environmental conditions in real time over the Internet; and (2) Provide additional educational benefits through integration with middle- and high-school science curricula. Information will be relayed from POLARATS devices to classrooms and libraries along with custom-designed POLARATS teaching materials that will be integrated into existing curricula to enhance the educational benefits realized from the information obtained.

  15. Oracle-Saguaro 115-kV Transmission Line Routine Maintenance Project...

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

    Oracle-Saguaro 115-kV Transmission Line Routine Maintenance Project, Mile 6 to Oracle Substation Categorical Exclusion Continuation Sheet Project Description Maintenance work at...

  16. Application Filling Requirements for Transmission Line and Substation Construction Projects (Wisconsin)

    Broader source: Energy.gov [DOE]

    This page describes application requirements for all projects that involve the installation of an electricity transmission line or substation that also require either a Certificate of Public...

  17. EIS-0344: Grand Coulee-Bell 500 kV Transmission Line

    Broader source: Energy.gov [DOE]

    This EIS analyzes DOE's proposed action for the construction and operation of the proposed Grand Coulee-Bell 500-kV Transmission Line Project.

  18. Miter bend loss and higher order mode content measurements in overmoded millimeter-wave transmission lines

    E-Print Network [OSTI]

    Kowalski, Elizabeth J. (Elizabeth Joan)

    2010-01-01T23:59:59.000Z

    High power applications require an accurate calculation of the losses on overmoded corrugated cylindrical transmission lines. Previous assessments of power loss on these lines have not considered beam polarization or higher ...

  19. Forced cooling of underground electric power transmission lines : design manual

    E-Print Network [OSTI]

    Brown, Jay A.

    1978-01-01T23:59:59.000Z

    The methodology utilized for the design of a forced-cooled pipe-type underground transmission system is presented. The material is divided into three major parts: (1) The Forced-cooled Pipe-Type Underground Transmission ...

  20. Precision electron flow measurements in a disk transmission line.

    SciTech Connect (OSTI)

    Clark, Waylon T.; Pelock, Michael D.; Martin, Jeremy Paul; Jackson, Daniel Peter Jr.; Savage, Mark Edward; Stoltzfus, Brian Scott; Mendel, Clifford Will, Jr.; Pointon, Timothy David

    2008-01-01T23:59:59.000Z

    An analytic model for electron flow in a system driving a fixed inductive load is described and evaluated with particle in cell simulations. The simple model allows determining the impedance profile for a magnetically insulated transmission line given the minimum gap desired, and the lumped inductance inside the transition to the minimum gap. The model allows specifying the relative electron flow along the power flow direction, including cases where the fractional electron flow decreases in the power flow direction. The electrons are able to return to the cathode because they gain energy from the temporally rising magnetic field. The simulations were done with small cell size to reduce numerical heating. An experiment to compare electron flow to the simulations was done. The measured electron flow is {approx}33% of the value from the simulations. The discrepancy is assumed to be due to a reversed electric field at the cathode because of the inductive load and falling electron drift velocity in the power flow direction. The simulations constrain the cathode electric field to zero, which gives the highest possible electron flow.

  1. Radial transmission line analysis of multi-layer structures

    SciTech Connect (OSTI)

    Hahn, H.; Hammons, L.

    2011-03-28T23:59:59.000Z

    The analysis of multi-layer beam tubes is a standard problem and involves axially propagating waves. This treatment is ill suited to a short multi-layer structure such as the present example of a ferrite covered ceramic break in the beam tube at the ERL photo-cathode electron gun. This paper demonstrates that such structure can better be treated by radial wave propagation. The theoretical method is presented and numerical results are compared with measured network analyser data and Microwave Studio generated simulations. The results confirm the concept of radial transmission lines as a valid analytical method. An Energy Recovery Linac (ERL) is being constructed at this laboratory for the purpose of research towards an envisioned Electron Ion Collider. One of the pertinent topics is damping of Higher Order Modes (HOM). In this ERL, the damping is provided by ferrite absorbers in the beam tube. A modified version thereof, a ceramic break surrounded by ferrite, is planed for the superconducting electron gun. The damper here is located at room temperature just outside of the gun. If used in a cavity chain, the ceramic break is in the vacuum tube at helium temperature whereas the ferrite is moved into the cryostat insulating vacuum allowing higher temperatures. The general properties of the ferrite HOM dampers have been published but are more detailed in this paper.

  2. EIS-0317-S1: Kangley-Echo Lake Transmission Line Project Final Environmental Impact Statement

    Broader source: Energy.gov [DOE]

    Bonneville Power Administration (BPA) has completed a supplemental draft Environmental Impact Statement (SDEIS) for the proposed Kangley-Echo Lake Transmission Line Project. The proposed line in central King County, Washington is needed to accommodate electrical growth and reliability concerns in the Puget Sound area. The SDEIS analyzes four additional transmission alternatives not analyzed in detail in the draft Environmental Impact Statement (DEIS) issued in June 2001, and a number of non-transmission alternatives.

  3. EIS-0325: Schultz-Hanford Area Transmission Line Project Final Environmental Impact Statement, EIS-0325 (January 2003)

    Broader source: Energy.gov [DOE]

    BPA proposes to construct a new 500-kilovolt (kV) transmission line in central Washington. This project would increase transmission system capacity north of Hanford.

  4. Omega Transmission Lines with Applications to Effective Medium Models of Metamaterials

    E-Print Network [OSTI]

    Vehmas, Joni; Tretyakov, Sergei

    2014-01-01T23:59:59.000Z

    In this paper we introduce the concept of transmission lines with inherent bi-anisotropy and establish an analogy between these lines and volumetric bi-anisotropic materials. In particular, we find under what conditions a periodically loaded transmission line can be treated as an effective omega medium. Two example circuits are introduced and analyzed. The results have two-fold implications: opening a route to emulate electromagnetic properties of bi-anisotropic omega media using transmission-line meshes and understanding and improving effective medium models of composite materials with the use of effective circuit models of unit cells.

  5. Electric Utility Transmission and Distribution Line Engineering Program

    SciTech Connect (OSTI)

    Peter McKenny

    2010-08-31T23:59:59.000Z

    Economic development in the United States depends on a reliable and affordable power supply. The nation will need well educated engineers to design a modern, safe, secure, and reliable power grid for our future needs. An anticipated shortage of qualified engineers has caused considerable concern in many professional circles, and various steps are being taken nationwide to alleviate the potential shortage and ensure the North American power system's reliability, and our world-wide economic competitiveness. To help provide a well-educated and trained workforce which can sustain and modernize the nation's power grid, Gonzaga University's School of Engineering and Applied Science has established a five-course (15-credit hour) Certificate Program in Transmission and Distribution (T&D) Engineering. The program has been specifically designed to provide working utility engineering professionals with on-line access to advanced engineering courses which cover modern design practice with an industry-focused theoretical foundation. A total of twelve courses have been developed to-date and students may select any five in their area of interest for the T&D Certificate. As each course is developed and taught by a team of experienced engineers (from public and private utilities, consultants, and industry suppliers), students are provided a unique opportunity to interact directly with different industry experts over the eight weeks of each course. Course material incorporates advanced aspects of civil, electrical, and mechanical engineering disciplines that apply to power system design and are appropriate for graduate engineers. As such, target students for the certificate program include: (1) recent graduates with a Bachelor of Science Degree in an engineering field (civil, mechanical, electrical, etc.); (2) senior engineers moving from other fields to the utility industry (i.e. paper industry to utility engineering or project management positions); and (3) regular working professionals wishing to update their skills or increase their knowledge of utility engineering design practices and procedures. By providing graduate educational opportunities for the above groups, the T&D Program will help serve a strong industry need for training the next generation of engineers in the cost-effective design, construction, operation, and maintenance of modern electrical transmission and distribution systems. In addition to developing the on-line engineering courses described above, the T&D Program also focused significant efforts towards enhancing the training opportunities available to power system operators in the northwest. These efforts have included working with outside vendors to provide NERC-approved training courses in Gonzaga University's (GU) system operator training facility, support for an accurate system model which can be used in regional blackstart exercises, and the identification of a retired system operator who could provide actual regional training courses. The GU system operator training facility is also being used to recruit young workers, veterans, and various under-represented groups to the utility industry. Over the past three years students from Columbia Gorge Community College, Spokane Falls Community College, Walla Walla Community College, Central Washington University, Eastern Washington University, Gonzaga University, and various local high schools have attended short (one-day) system operator training courses free of charge. These collaboration efforts has been extremely well received by both students and industry, and meet T&D Program objectives of strengthening the power industry workforce while bridging the knowledge base across power worker categories, and recruiting new workers to replace a predominantly retirement age workforce. In the past three years the T&D Program has provided over 170 utility engineers with access to advanced engineering courses, been involved in training more than 300 power system operators, and provided well over 500 college and high school students with an experienc

  6. EIS-0486: Plains & Eastern Clean Line Transmission Project |...

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

    project would include an overhead 600 kilovolt (kV) high voltage direct current (HVDC) electric transmission system and associated facilities with the capacity to deliver...

  7. Natural gas transmission and distribution model of the National Energy Modeling System

    SciTech Connect (OSTI)

    NONE

    1997-02-01T23:59:59.000Z

    The Natural Gas Transmission and Distribution Model (NGTDM) is the component of the National Energy Modeling System (NEMS) that is used to represent the domestic natural gas transmission and distribution system. NEMS was developed in the Office of Integrated Analysis and Forecasting of the Energy Information Administration (EIA). NEMS is the third in a series of computer-based, midterm energy modeling systems used since 1974 by the EIA and its predecessor, the Federal Energy Administration, to analyze domestic energy-economy markets and develop projections. From 1982 through 1993, the Intermediate Future Forecasting System (IFFS) was used by the EIA for its analyses, and the Gas Analysis Modeling System (GAMS) was used within IFFS to represent natural gas markets. Prior to 1982, the Midterm Energy Forecasting System (MEFS), also referred to as the Project Independence Evaluation System (PIES), was employed. NEMS was developed to enhance and update EIA`s modeling capability by internally incorporating models of energy markets that had previously been analyzed off-line. In addition, greater structural detail in NEMS permits the analysis of a broader range of energy issues. The time horizon of NEMS is the midterm period (i.e., through 2015). In order to represent the regional differences in energy markets, the component models of NEMS function at regional levels appropriate for the markets represented, with subsequent aggregation/disaggregation to the Census Division level for reporting purposes.

  8. Kangley-Echo Lake Transmission Line Project Final Environmental Impact Statement

    SciTech Connect (OSTI)

    N /A

    2003-06-20T23:59:59.000Z

    BPA proposes to build a single-circuit 500-kV transmission line from a tap point on an existing 500-kV line near Kangley, Washington, to its Echo Lake Substation near North Bend, Washington. The proposed route for this line, also called Alternative 1, is about nine miles long. About five miles of the proposed route would go through the Cedar River Municipal Watershed. In addition, Echo Lake Substation would be expanded about three acres to the east and new equipment would be installed there to accommodate the new line (common to all transmission alternatives). This alternative was proposed because it would be located immediately parallel to an existing BPA existing 500-kV transmission line, the Raver-Echo Lake Transmission Line. Locating a new line next to an existing one reduces right-of-way (ROW) clearing needed for the new line and reduces the need for additional access roads. Lattice steel transmission towers would support the 500-kV transmission line. These structures average 135 feet high, with the average span between towers of about 1,150 feet.

  9. On-line gas chromatographic analysis of airborne particles

    DOE Patents [OSTI]

    Hering, Susanne V. (Berkeley, CA); Goldstein, Allen H. (Orinda, CA)

    2012-01-03T23:59:59.000Z

    A method and apparatus for the in-situ, chemical analysis of an aerosol. The method may include the steps of: collecting an aerosol; thermally desorbing the aerosol into a carrier gas to provide desorbed aerosol material; transporting the desorbed aerosol material onto the head of a gas chromatography column; analyzing the aerosol material using a gas chromatograph, and quantizing the aerosol material as it evolves from the gas chromatography column. The apparatus includes a collection and thermal desorption cell, a gas chromatograph including a gas chromatography column, heated transport lines coupling the cell and the column; and a quantization detector for aerosol material evolving from the gas chromatography column.

  10. Flashover vulnerability of transmission and distribution lines to high-altitude electromagnetic pulse

    SciTech Connect (OSTI)

    Kruse, V.J. (Westinghouse Electric Corp., Pittsburgh, PA (USA). Advanced Systems Technology Div.); Tesche, F.M. (E-Systems, Inc., Greenville, TX (USA)); Liu, T.K. (Lutech, Inc., Oakland, CA (US)); Barnes, P.R. (Oak Ridge National Lab., TN (USA))

    1990-04-01T23:59:59.000Z

    This paper estimates the vulnerability of transmission and distribution lines to flashover from the electromagnetic pulse generated by a nuclear detonation 400 kilometers above the earth. The analysis consists of first determining the cumulative probability of induced-voltage on three-phase lines, including shield and neutral conductors, for four operating voltages and then comparing these stresses to estimates of line insulation strength.

  11. EIS-0166: Bangor Hydro-Electric Transmission Line, Maine

    Broader source: Energy.gov [DOE]

    The Department of Energy prepared this environmental impact statement while considering whether to authorize a Presidential permit for Bangor Hydro to construct a new electric transmission facility at the U.S. border with Canada.

  12. Determination of leakage and unaccounted-for-gas-transmission

    SciTech Connect (OSTI)

    Beasley, D. [Arkla Energy Resources, Shreveport, LA (United States)

    1995-12-01T23:59:59.000Z

    No one person can be responsible for a large pipeline LUFG. It will take a commitment from both the office and field to maintain good measurement practices to ensure all the gas is accounted for correctly. With a large pipeline and many meters the amount of time that is available to solve any problem is very limited. The segment with the largest loss will be the one getting the most review. The total pipeline loss 12 month average is a good indicator of the actual LUFG. The 12 month average eliminates chart closing time, the cycle bill customers, line pack and many meter adjustments.

  13. Using Dielectric Losses to De-Ice Power Transmission Lines with 100 kHz High-Voltage

    E-Print Network [OSTI]

    Using Dielectric Losses to De-Ice Power Transmission Lines with 100 kHz High-Voltage Excitation J DIELECTRIC LOSSES TO DE-ICE POWER TRANSMISSION LINES . . . 1 Using Dielectric Losses to De-Ice Power Transmission Lines with 100 kHz High-Voltage Excitation Joshua D. McCurdy, Charles R. Sullivan and Victor F

  14. The mesa merging oxidation method for creating low-loss dielectrics and transmission lines on low-resistivity silicon

    E-Print Network [OSTI]

    Bowers, John

    The mesa merging oxidation method for creating low-loss dielectrics and transmission lines on low.1088/0960-1317/21/6/065020 The mesa merging oxidation method for creating low-loss dielectrics and transmission lines on low steps to create high aspect ratio coplanar waveguide (hicoplanar) transmission lines. The large SiO2

  15. Simulation of Eye-Diagrams on Lossy Transmission Lines using Extracted Data from 1-port TDR Measurements

    E-Print Network [OSTI]

    Swaminathan, Madhavan

    Simulation of Eye-Diagrams on Lossy Transmission Lines using Extracted Data from 1-port TDR of transmission lines were measured from 1- port TDR measurements. Using the extracted data, eye- diagrams of lossy transmission lines were simulated based on a non-physical RLGC model. Conventional W element

  16. 650 IEEE TRANSACTIONS ON POWER DELIVERY, VOL. 26, NO. 2, APRIL 2011 Hourly Scheduling of DC Transmission Lines in

    E-Print Network [OSTI]

    Fu, Yong

    Transmission Lines in SCUC With Voltage Source Converters Azim Lotfjou, Mohammad Shahidehpour, Fellow, IEEE transmission lines, se- curity-constrained unit commitment, voltage-source converters. NOMENCLATURE Index of ac;LOTFJOU et al.: HOURLY SCHEDULING OF DC TRANSMISSION LINES 651 , Vector of real and reactive power

  17. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 45, NO. 6, JUNE 1997 939 Characteristics of Coplanar Transmission Lines on

    E-Print Network [OSTI]

    of Coplanar Transmission Lines on Multilayer Substrates: Modeling and Experiments Erli Chen and Stephen Y. Chou, Senior Member, IEEE Abstract-- Characteristics of coplanar transmission lines on multilayer of these for- mulas has been verified experimentally on a variety of copla- nar transmission lines using

  18. 736 IEEE TRANSACTIONS ON ADVANCED PACKAGING, VOL. 28, NO. 4, NOVEMBER 2005 Simulation of Lossy Package Transmission Lines

    E-Print Network [OSTI]

    Swaminathan, Madhavan

    Package Transmission Lines Using Extracted Data From One-Port TDR Measurements and Nonphysical RLGC Models, the frequency-dependent characteristic impedance and propagation constant of lossy transmission lines have been ( ), conductance ( ) and capacitance ( ) (RLGC) models have been developed for simulating lossy transmission lines

  19. Direct optoelectronic generation and detection of sub-ps-electrical pulses on sub-mm-coaxial transmission lines

    E-Print Network [OSTI]

    -mm-coaxial transmission lines Tae-In Jeona) and D. Grischkowskyb) School of Electrical and Computer Engineering, Oklahoma efficient direct optoelectronic generation of sub-ps-THz pulses on 50 coaxial transmission lines with a 330 larger bandwidths with 1/10 the loss of lithographically defined co- planar transmission lines.3 Although

  20. Minimizing Simultaneous Switching Noise at Reduced Power with Constant-Voltage Power Transmission Lines for High-Speed Signaling

    E-Print Network [OSTI]

    Swaminathan, Madhavan

    plane structure with a power transmission line (PTL). In this paper, a new power delivery scheme called Constant Voltage Power Transmission Line (CV-PTL) is shown to significantly reduce switching noise while, and measurements. Keywords Power delivery network, simultaneous switching noise, power transmission line 1

  1. On the Design and Implementation of Transmission Lines in Commercial SiGe HBT BiCMOS Processes

    E-Print Network [OSTI]

    Papapolymerou, Ioannis "John"

    On the Design and Implementation of Transmission Lines in Commercial SiGe HBT BiCMOS Processes Matt the feasibility of implement- ing transmission lines in a commercially-available SiGe HBT BiCMOS technology. Thin film microstrip transmission lines using the top and bottom metalization layers (with a 3.24 ¡ m

  2. Sensor, method and system of monitoring transmission lines

    DOE Patents [OSTI]

    Syracuse, Steven J.; Clark, Roy; Halverson, Peter G.; Tesche, Frederick M.; Barlow, Charles V.

    2012-10-02T23:59:59.000Z

    An apparatus, method, and system for measuring the magnetic field produced by phase conductors in multi-phase power lines. The magnetic field measurements are used to determine the current load on the conductors. The magnetic fields are sensed by coils placed sufficiently proximate the lines to measure the voltage induced in the coils by the field without touching the lines. The x and y components of the magnetic fields are used to calculate the conductor sag, and then the sag data, along with the field strength data, can be used to calculate the current load on the line and the phase of the current. The sag calculations of this invention are independent of line voltage and line current measurements. The system applies a computerized fitter routine to measured and sampled voltages on the coils to accurately determine the values of parameters associated with the overhead phase conductors.

  3. Security analysis of the interaction between the UK gas and electricity transmission systems 

    E-Print Network [OSTI]

    Whiteford, James Raymond George

    2012-06-25T23:59:59.000Z

    Natural gas has become the UK’s foremost primary energy source, providing some 39% of our energy needs. The National Transmission System (NTS) has developed from its humble beginnings when natural gas was first discovered ...

  4. Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels

    SciTech Connect (OSTI)

    Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A.

    1994-11-01T23:59:59.000Z

    This report provides background information about (1) the electric and magnetic fields (EMFs) of high-voltage transmission lines at typical voltages and line configurations and (2) typical transmission line costs to assist on alternatives in environmental documents. EMF strengths at 0 {+-} 200 ft from centerline were calculated for ac overhead lines, and for 345 and 230-kV ac underground line and for a {+-}450-kV dc overhead line. Compacting and height sensitivity factors were computed for the variation in EMFs when line conductors are moved closer or raised. Estimated costs for the lines are presented and discussed so that the impact of using alternative strategies for reducing EMF strengths and the implications of implementing the strategies can be better appreciated.

  5. Calculation and measurement of higher order mode losses in ITER ECH transmission lines

    E-Print Network [OSTI]

    Temkin, Richard J.

    The ITER transmission lines (TLs) must be designed to deliver 20 MW from a 24 MW, 170 GHz gyrotron system. Miter bends are the main source of loss for these highly overmoded, corrugated, cylindrical waveguide TLs. Previous ...

  6. EIS-0332: McNary-John Day Transmission Line Project, OR

    Broader source: Energy.gov [DOE]

    This EIS analyzes BPA's decision to construct, operate, and maintain a 79-mile-long 500-kilovolt transmission line in Benton and Klickitat Counties, Washington, and Umatilla and Sherman counties, Oregon.

  7. EA-1952: Lane-Wendson No. 1 Transmission Line Rebuild Project; Lane County, Oregon

    Broader source: Energy.gov [DOE]

    Bonneville Power Administration is preparing an EA to assess the potential environmental impacts of the proposed rebuild of the 41.3-mile Lane-Wendson No. 1 transmission line between Eugene and Florence, Oregon.

  8. EIS-0078: Jonesboro-Hergett 161-kV Transmission Line

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy's Southwestern Power Administration developed this statement to assess the environmental and socioeconomic impacts of a 161-kilovolt transmission line in Craighead County, Arkansas, including its proposed and alternate routes.

  9. EIS-0399: Montana Alberta Tie Ltd. (MATL) 230-KV Transmission Line

    Broader source: Energy.gov [DOE]

    DOE, jointly with the Montana Department of Environmental Quality (MDEQ), prepared an EIS that evaluated the potential environmental impacts of a proposed international transmission line that would cross the U.S.-Canada border in northwest Montana.

  10. Natural Gas Pipe Line Companies (Connecticut)

    Broader source: Energy.gov [DOE]

    These regulations list standards and considerations for the design, construction, compression, metering, operation, and maintenance of natural gas pipelines, along with procedures for records,...

  11. An empirical study of the economies of scale in AC transmission line construction costs

    E-Print Network [OSTI]

    Baldick, Ross

    1 An empirical study of the economies of scale in AC transmission line construction costs Krishnan data filed at the Federal Energy Regulatory Commission to empirically determine the cost of transmission projects completed between the years 1994 and 2000. We examine the economies of scale in the cost

  12. EIS-0447: Champlain Hudson Power Express Transmission Line Project, New York

    Broader source: Energy.gov [DOE]

    This EIS evaluated the potential environmental impacts of a DOE proposal to grant a Presidential permit to Champlain Hudson Power Express, Inc., to construct, operate, maintain, and connect a new 1000-megawatt (MW) electric transmission system across the U.S.-Canada border in northeastern New York State. The proposed transmission line would run from the Canadian Province of Quebec to New York City.

  13. EA-1665: Davis-Kingman 69-kV Transmission Line Rebuild Project, Arizona

    Broader source: Energy.gov [DOE]

    Western plans to rebuild a 26.6-mile-long portion of the existing 27.3-mile-long Davis–Kingman Tap 69-kV Transmission Line within the existing ROW in order to improve the reliability of the transmission service.

  14. EIS-0134: Charlie Creek-Belfield Transmission Line Project, North Dakota

    Broader source: Energy.gov [DOE]

    The Western Area Power Administration developed this EIS to assess the environmental impact of constructing a high voltage transmission line between Charlie Creek and Belfield, North Dakota, and a new substation near Belfield to as a means of adding transmission capacity to the area.

  15. Nondestructive Testing of Overhead Transmission Lines: Numerical and Experimental Investigation

    E-Print Network [OSTI]

    Kulkarni, Salil Subhash

    2011-02-22T23:59:59.000Z

    line is the primary reason for absence of a theoretical solution to get the analytical dispersion curves. The numerical results are then verified with experimental tests using a non-contact and broadband laser detection technique. The methodology...

  16. Electric Companies and Electric Transmission Lines (North Dakota)

    Broader source: Energy.gov [DOE]

    The Public Service Commission has the authority to regulate the construction, operation, and maintenance of electrical supply lines, and to issue additional rules for this purpose. Section 49-21.1...

  17. Africa; Expanding market creates more gas lines

    SciTech Connect (OSTI)

    Quarles, W.R.; Thiede, K.; Parent, L.

    1990-11-01T23:59:59.000Z

    The authors report on pipeline development activities in Africa. They discuss how a growing European market for gas has increased potential pipeline construction in Africa, especially for Algeria, Egypt, and Libya.

  18. EIS-0118: Proposed Eugene-Medford 500-kV Transmission Line

    Broader source: Energy.gov [DOE]

    The U.S. Department of Interior developed this statement to assess the environmental impact of a proposed 500-kilovolt transmission line linking Eugene and Medford, Oregon, that would cross through public lands. The Bonneville Power Administration (BPA) would provide service to the proposed line and is a cooperating agency in the statement. BPA adopted the EIS on 7/10/1985.

  19. Hawaii Clean Energy Initiative - Transmission Line Approval Permit Packet |

    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 are8COaBulkTransmissionSitingProcess.pdfGetec AG| OpenInformationHartsville,NewOpen Energy Information -

  20. Guide to Permitting Electric Transmission Lines in Utah | Open Energy

    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 are8COaBulkTransmissionSitingProcess.pdfGetec AG| Open Energy InformationGettop Science

  1. Guide to Permitting Electric Transmission Lines in Wyoming | Open Energy

    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 are8COaBulkTransmissionSitingProcess.pdfGetec AG| Open Energy InformationGettop ScienceInformation Wyoming Jump

  2. Fiber Optic Picosecond Laser Pulse Transmission Line for Hydrogen Ion Beam Profile Measurement

    SciTech Connect (OSTI)

    Liu, Yun [ORNL; Huang, Chunning [ORNL; Aleksandrov, Alexander V [ORNL

    2013-01-01T23:59:59.000Z

    We present a fiber optic laser pulse transmission line for non-intrusive longitudinal profile measurement of the hydrogen ion (H-) beam at the front-end of the Spallation Neutron Source (SNS) accelerator. The 80.5 MHz, 2.5 ps, multi-killowatt optical pulses are delivered to the accelerator beam line through a large mode area polarization maintaining optical fiber to ensure a high measurement stability. The transmission efficiency, output laser beam quality, pulse jitter and pulse width broadening over a 100-ft fiber line are experimentally investigated. A successful measurement of the H- beam microbunch (~130 ps) profile is obtained. Our experiment is the first demonstration of particle beam profile diagnostics using fiber optic laser pulse transmission line.

  3. Waveform Relaxation Technique for Longitudinal Partitioning of Transmission Lines

    E-Print Network [OSTI]

    Gander, Martin J.

    for VLSI circuit analysis in [1], and has been extended to time dependent Partial Differential Equations approach yields a remarkable linear increase in run time with respect to the number of lines. For some problems with more complex circuit topologies, additional splittings are desirable besides the transverse

  4. Flashover vulnerability of transmission and distribution lines to high-altitude electromagnetic pulse (HEMP)

    SciTech Connect (OSTI)

    Kruse, V.J.; Liu, T.K.; Tesche, F.M.; Barnes, P.R.

    1989-01-01T23:59:59.000Z

    This paper estimates the vulnerability of transmission and distribution lines to flashover from the electromagnetic pulse generated by a nuclear detonation 400 kilometers above the earth. The analysis consists of first determining the cumulative probability of induced-voltage on three-phase lines, including shield and neutral conductors, for four operating voltages and then comparing these stresses to estimates of line insulation strength. 11 refs., 9 figs., 5 tabs.

  5. Light transmissive electrically conductive oxide electrode formed in the presence of a stabilizing gas

    DOE Patents [OSTI]

    Tran, Nang T. (Cottage Grove, MN); Gilbert, James R. (Maplewood, MN)

    1992-08-04T23:59:59.000Z

    A light transmissive, electrically conductive oxide is doped with a stabilizing gas such as H.sub.2 and H.sub.2 O. The oxide is formed by sputtering a light transmissive, electrically conductive oxide precursor onto a substrate at a temperature from 20.degree. C. to 300.degree. C. Sputtering occurs in a gaseous mixture including a sputtering gas and the stabilizing gas.

  6. Marys Lake 69/115-kV transmission line upgrade and substation expansion projects

    SciTech Connect (OSTI)

    NONE

    1996-05-01T23:59:59.000Z

    Western Area Power Administration (Western) and the Platte River Power Authority (Platte River) propose to upgrade portions of the existing electric transmission and substation system that serves the Town of Estes Park, Colorado. The existing transmission lines between the Estes Power Plant Switchyard and the Marys Lake Substation include a 115,000 volt (115-kV) line and 69,000 volt (69-kV) line. Approximately one mile is a double-circuit 115/69-kV line on steel lattice structures, and approximately two miles consists of separate single-circuit 115-kV and a 69-kV lines, constructed on wood H-Frame structures. Both lines were constructed in 1951 by the US Bureau of Reclamation. The existing transmission lines are on rights-of-way (ROW) that vary from 75 feet to 120 feet and are owned by Western. There are 48 landowners adjacent to the existing ROW. All of the houses were built adjacent to the existing ROW after the transmission lines were constructed. Upgrading the existing 69-kV transmission line between the Marys Lake Substation and the Estes Power Plant Switchyard to 115-kV and expanding the Marys Lake Substation was identified as the most effective way in which to improve electric service to Estes Park. The primary purpose and need of the proposed project is to improve the reliability of electric service to the Town of Estes Park. Lack of reliability has been a historical concern, and reliability will always be less than desired until physical improvements are made to the electrical facilities serving Estes Park.

  7. Safety of Gas Transmission and Distribution Systems (Maine)

    Broader source: Energy.gov [DOE]

    These regulations describe requirements for the participation of natural gas utilities in the Underground Utility Damage Prevention Program, emergency procedures to be followed by natural gas...

  8. Development of the IMPACS materials management system at Tennessee Gas Transmission

    SciTech Connect (OSTI)

    Danko, W.A.; Owen, R.J.

    1985-08-01T23:59:59.000Z

    Tennessee Gas Transmission is one of the largest natural-gas-transmission companies in the world. Its revenues in 1983 exceeded $4 billion, and it employs approximately 3600 people. TGT was incorporated as the Tennessee Gas and Transmission Company in 1943. It has several subsidiaries including Midwestern Gas Transmission, East Tennessee Natural Gas, Channel Industries, and Tenngasco. TGT is also the original corporation from which the Tenneco, Inc., group of companies emerged. In this issue this article deals with the materials management function at TGT. More specifically, it elaborates on TGT's new fully integrated materials management system, IMPACS. The article details the need for a new system, the implementation of the system, the benefits derived from the system, and the operation of the system. 4 figures.

  9. A test of a 2 Tesla superconducting transmission line magnet system

    SciTech Connect (OSTI)

    Piekarz, Henryk; Carcagno, Ruben; Claypool, Brad; Foster, George W.; Hays, Steven L.; Huang, Yuenian; Kashikhin, Vladimir; Malamud, Ernest; Mazur, Peter O.; Nehring,; Oleck, Andrew; Rabehl, Roger; Schlabach, Phil; Sylvester, Cosmore; Velev, Gueorgui; Volk, James; /Fermilab; Wake, Masayoshi; /KEK, Tsukuba

    2005-09-01T23:59:59.000Z

    Superconducting transmission line magnet test system for an injector accelerator of a staged VLHC proton-proton colliding beam accelerator has been built and operated at Fermilab. The 1.5 m long, twin-aperture, combined function dipole magnet of 2 Tesla field is excited by a single turn 100 kA transmission line superconductor. The 100 kA dc current is generated using dc-dc switching converters powered by a bulk 240 kW supply. A pair of horizontally placed conventional leads facilitates transfer of this current to the magnet transmission line superconductor operating at liquid helium temperature. Fabrication of magnet components and magnet assembly work are described. The magnet test system and its operation are presented, and the performance is summarized.

  10. Non-Linear Transmission Line (NLTL) Microwave Source Lecture Notes the United States Particle Accelerator School

    SciTech Connect (OSTI)

    Russell, Steven J. [Los Alamos National Laboratory; Carlsten, Bruce E. [Los Alamos National Laboratory

    2012-06-26T23:59:59.000Z

    We will quickly go through the history of the non-linear transmission lines (NLTLs). We will describe how they work, how they are modeled and how they are designed. Note that the field of high power, NLTL microwave sources is still under development, so this is just a snap shot of their current state. Topics discussed are: (1) Introduction to solitons and the KdV equation; (2) The lumped element non-linear transmission line; (3) Solution of the KdV equation; (4) Non-linear transmission lines at microwave frequencies; (5) Numerical methods for NLTL analysis; (6) Unipolar versus bipolar input; (7) High power NLTL pioneers; (8) Resistive versus reactive load; (9) Non-lineaer dielectrics; and (10) Effect of losses.

  11. Transmission Line Jobs and Economic Development Impact (JEDI) Model User Reference Guide

    SciTech Connect (OSTI)

    Goldberg, M.; Keyser, D.

    2013-10-01T23:59:59.000Z

    The Jobs and Economic Development Impact (JEDI) models, developed through the National Renewable Energy Laboratory (NREL), are freely available, user-friendly tools that estimate the potential economic impacts of constructing and operating power generation projects for a range of conventional and renewable energy technologies. The Transmission Line JEDI model can be used to field questions about the economic impacts of transmission lines in a given state, region, or local community. This Transmission Line JEDI User Reference Guide was developed to provide basic instruction on operating the model and understanding the results. This guide also provides information on the model's underlying methodology, as well as the parameters and references used to develop the cost data contained in the model.

  12. Power Transmission Lines: A New Interconnect Design to Eliminate Simultaneous Switching Noise A. Ege Engin and Madhavan Swaminathan

    E-Print Network [OSTI]

    Swaminathan, Madhavan

    Power Transmission Lines: A New Interconnect Design to Eliminate Simultaneous Switching Noise A of the coupling between the signal lines and the power delivery network (PDN) in off-chip signaling. This coupling presents a new PDN design, called as the power transmission line, which overcomes these problems

  13. Transmission Channel Model and Capacity of Overhead Multi-conductor Medium-Voltage Power-lines for Broadband Communications

    E-Print Network [OSTI]

    Kavehrad, Mohsen

    Transmission Channel Model and Capacity of Overhead Multi-conductor Medium-Voltage Power-lines signal transmission, power-line has many non-ideal properties as a communications medium. Impedance-voltage power distribution networks for broadband power-line communications applications. Keywords - channel

  14. International 345 kV transmission line to Highgate, Vermont: environmental assessment

    SciTech Connect (OSTI)

    Not Available

    1985-02-01T23:59:59.000Z

    The action under consideration is the issuance of a Presidential permit to the Vermont Electric Power Company, Inc. (VELCO) for the construction, operation, maintenance and connection of a facility that will cross the United States-Canada border for international transmission of electric energy. The proposed transmission facilities will consist of a 7.5 mile, alternating current (ac) transmission line and a 200 MW back-to-back direct current (dc) converter terminal station. None of the facilities will involve any polluting emissions. The construction and maintenance of the proposed converter terminal station and transmission facilities will have little or no impact on the geologic features of the region. The transmission line will have little or no effect on agricultural land. Impacts on commercial forestry in the area will be minimal. The proposed route will require clearing about 36 acres of forest. The proposed transmission line and converter terminal site will have no effect on recreational activities, mining activites, residential, commercial, or industrial land use. The proposed corridor will have a minimal impact on area terrestrial wildlife and plant communities. The proposed project will have little or no impact on future population distribution, the operation of local services, employment and economic benefit, or housing in either Franklin or Highgate. 16 references, 3 figures. (ACR)

  15. Investigation of conductor swinging by wind and its application for design of compact transmission line

    SciTech Connect (OSTI)

    Tsujimoto, K.; Fujii, K.; Kubokawa, H.; Okomura, T.; Simojima, K.; Yoshioka, V.

    1982-11-01T23:59:59.000Z

    In Japan it has recently become necessary to shorten the interphase spacing in overhead transmission lines because of land limitations and economical considerations. In this connection, the authors have attempted to analyze, in-depth, the possibilities of shortened interphase spacing via conductor swinging caused by wind effects: one of the important factors in the design of more compact overhead lines. This paper describes not only the investigative results of conductor swinging that were obtained both through computer simulation and in 3 years of full scale field line testing, but also design methodology for compact overhead lines based on these results.

  16. Calculation of large ion densities under HVdc transmission lines by the finite difference method

    SciTech Connect (OSTI)

    Suda, Tomotaka; Sunaga, Yoshitaka [Central Research Institute of Electrical Power Industry, Komae, Tokyo (Japan)] [Central Research Institute of Electrical Power Industry, Komae, Tokyo (Japan)

    1995-10-01T23:59:59.000Z

    A calculation method for large ion densities (charged aerosols) under HVdc transmission lines was developed considering both the charging mechanism of aerosols by small ions and the drifting process by wind. Large ion densities calculated by this method agreed well with the ones measured under the Shiobara HVdc test line on the lateral profiles at ground level up to about 70m downwind from the line. Measured values decreased more quickly than calculated ones farther downwind from the line. Considering the effect of point discharge from ground cover (earth corona) improved the agreement in the farther downwind region.

  17. EA-1948: Gila-North Gila Transmission Line Rebuild and Upgrade Project, Yuma County, Arizona

    Broader source: Energy.gov [DOE]

    DOE’s Western Area Power Administration (Western) prepared this EA to analyze the potential environmental impacts of a proposal to rebuild and upgrade two parallel 4.8-mile transmission lines between the Gila and North Gila Substations and take actions in support of portions of Arizona Public Service’s construction of a new, 12.8 mile 230-kV transmission line between North Gila and a proposed substation in Yuma County, Arizona. The U.S. Bureau of Reclamation and U.S. Army Corps of Engineers are cooperating agencies.

  18. Measuring Hawking Radiation of a Kerr-Newman Black Hole in a Superconducting Transmission Line

    E-Print Network [OSTI]

    X. G. Lan; D. Y. Chen; L. F. Wei

    2014-03-21T23:59:59.000Z

    Applying a dimensional reduction technique and a coordinates transformation approach, we deduce the Kerr-Newman space-time into a Painlev\\'{e}-like form, and obtain its corresponding event horizon and the Hawking radiation temperature. We find that, the event horizon of a Kerr-Newman black hole can be simulated in a superconducting transmission line. Moreover, by running some numerical simulation, we confirm that the Hawking radiation of a Kerr-Newman Black Hole can be experimentally measured in a superconducting transmission line.

  19. Transmission Lines, Reflections, and Termination Zo1 Supplementary material to accompany Digital Design Principles and Practices, Fourth Edition, by John F. Wakerly.

    E-Print Network [OSTI]

    Greenwood, Garrison W.

    Transmission Lines, Reflections, and Termination Zo­1 Supplementary material to accompany Digital means, without permission in writing by the publisher. Zo: Transmission Lines, Reflections-delay, perfect conductors, but as the "transmission lines" that they really are. Transmission-line behavior

  20. Identification of ions near HVDC (high-voltage direct-current) transmission lines: Final report

    SciTech Connect (OSTI)

    Eisele, F.L.

    1989-05-01T23:59:59.000Z

    Positive and negative ion species were identified and studied at two separate field sites and one laboratory site. The first field study was conducted under an operating HVDC transmission line. The second was near a HVDC test line and measurements were performed with the line in both an energized and de-energized state. During clear, sunny days HSO/sub 4//sup /minus///center dot/H/sub 2/SO/sub 4/ was observed to be the dominant negative ion in the natural ion spectrum. At night, however, HSO/sub 4//sup /minus// core ions virtually disappeared, and were replaced by NO/sub 3//sup /minus// core ions and their first nitric acid cluster. Both negative spectra also typically contained lesser concentrations of the malonate ion. The transmission line negative spectra were similar but were typically dominated by the NO/sub 3//sup /minus// core ions during both day and night. The positive ions observed under HVDC lines were typically either NH/sub 4//sup +/ or C/sub 5/H/sub 6/N/sup +/, which reacted with higher proton affinity species (such as methylpyridines, trimethylamine and quinoline) farther from or in the absence of the transmission line. The observed differences between natural and anthropogenic ion spectra near HVDC lines are attributed primarily to a shortening of ion lifetimes by the strong electric field associated with the HVDC lines. One exception is the production of potassium and probably sodium based ions from the decomposition of insects in transmission line coronas. 22 refs., 29 figs.

  1. Field tests of probes for detecting internal corrosion of natural gas transmission pipelines

    SciTech Connect (OSTI)

    Covino, Bernard S., Jr.; Bullard, Sophie J.; Cramer, Stephen D.; Holcomb, Gordon R.; Ziomek-Moroz, M.; Cayard, Michael S. (Intercorr International Inc.); Kane, Russell D. (Intercorr International Inc.); Meidinger, Brian (RMOTC-DOE)

    2005-01-01T23:59:59.000Z

    A field study was conducted to evaluate the use of electrochemical corrosion rate (ECR) probes for detecting corrosion in environments similar to those found in natural gas transmission pipelines. Results and interpretation will be reported from four different field tests. Flange and flush-mount probes were used in four different environments at a gas-gathering site and one environment but two different orientations at a natural gas plant. These sites were selected to represent normal and upset conditions in a gas transmission pipeline. The environments consisted of 2 different levels of humidified natural gas/organic/water mixtures removed from natural gas, and the environments at the 6 and 12 o'clock positions of a natural gas pipeline carrying 2-phase gas/liquid flow. Data are also presented comparing the ECR probe data to that for coupons used to determine corrosion rate and to detect the presence of microbiologically influenced corrosion (MIC).

  2. Schultz-Hanford Area Transmission Line Project Draft Environmental Impact Statement

    SciTech Connect (OSTI)

    N /A

    2002-02-08T23:59:59.000Z

    This summary covers the major points of the Draft Environmental Impact Statement (EIS) prepared for the BPA Schultz-Hanford Transmission Project proposed by the Bonneville Power Administration (BPA). The project involves constructing a new 500-kilovolt (kV) line in central Washington, north of Hanford. The new line would connect to an existing line at the Schultz Substation near Ellensburg and to a new or existing substation in the Hanford area (see Map 2 in EIS). The project may also involve constructing a new substation to accommodate the new transmission line. As a federal agency, BPA is required by the National Environmental Policy Act (NEPA) to take into account potential environmental consequences of its proposal and take action to protect, restore, and enhance the environment during and after construction. Preparation of this EIS assists in meeting those requirements.

  3. Proceedings of the Inspection and Assessment of Overhead Transmission Line Equipment Workshop: 13-15 May 2003, Monterey, CA

    SciTech Connect (OSTI)

    None

    2003-10-01T23:59:59.000Z

    This report contains papers and materials presented at the Inspection and Assessment of Overhead Transmission Line Equipment Workshop held in Monterey, California in May of 2003.

  4. A preliminary investigation of the effects of environmentally assisted cracking on natural gas transmission pipelines 

    E-Print Network [OSTI]

    Curbo, Jason Wayne

    2005-08-29T23:59:59.000Z

    Concepts for the development of a model to predict natural gas transmission pipeline lifetime in a corrosive environment are constructed. Primarily, the effects of environmentally assisted cracking (EAC) are explored. Tensile test specimens from a...

  5. Automated transmission line fault analysis using synchronized sampling at two ends

    SciTech Connect (OSTI)

    Kezunovic, M. [Texas A and M Univ., College Station, TX (United States)] [Texas A and M Univ., College Station, TX (United States); Perunicic, B. [Lamar Univ., Beaumont, TX (United States)] [Lamar Univ., Beaumont, TX (United States)

    1996-02-01T23:59:59.000Z

    This paper introduces a new approach to fault analysis using synchronized sampling. A digital fault recorder with Global Positioning System (GPS) satellite receiver is the source of data for this approach. Fault analysis functions, such as fault detection, classification and location are implemented for a transmission line using synchronized samples from two ends of a line. This technique can be extremely fast, selective and accurate, providing fault analysis performance that can not easily be matched by other known techniques.

  6. Automated transmission line fault analysis using synchronized sampling at two ends

    SciTech Connect (OSTI)

    Kezunovic, M. [Texas A and M Univ., College Station, TX (United States); Perunicic, B. [Lamar Univ., Beaumont, TX (United States)

    1995-12-31T23:59:59.000Z

    This paper introduces a new approach to fault analysis using synchronized sampling. A digital fault recorder with Global Positioning System (GPS) satellite receiver is the source of data for this approach. Fault analysis functions, such as fault detection, classification and location are implemented for a transmission line using synchronized samples from two ends of a line. This technique can be extremely fast, selective and accurate, providing fault analysis performance that can not easily be matched by other known techniques.

  7. Availability of corona cage for predicting audible noise generated from HVDC transmission line

    SciTech Connect (OSTI)

    Nakano, Y.; Sunaga, Y.

    1989-04-01T23:59:59.000Z

    This paper describes a prospect that a corona cage is available for predicting audible noise (AN) generated from HVDC transmission line. This is based on the assumption that generation quantities of AN and corona current are determined by Fmax (the true maximum conductor surface gradient in the presence of space charge) regardless of the surrounding electrode arrangement. This assumption has been verified by tests using corona cages and a test line.

  8. Availabilty of corona cage for predicting radio interference generated from HVDC transmission line

    SciTech Connect (OSTI)

    Nakano, Y.; Sunaga, Y. (Central Research Inst. of Electric Power Industry, Tokyo (Japan))

    1990-07-01T23:59:59.000Z

    This paper describes a prospect that a corona cage is available for predicting radio interference (RI) generated from HVDC transmission lines. This is based on the assumption that the generation quantity of RI is determined by Fmax (the true maximum conductor surface gradient in the presence of space charge), regardless of surrounding electrode arrangement. This assumption has been verified by tests using corona cages and a test line.

  9. EA-1981: Bonneville-Hood River Transmission Line Rebuild, Multnomah and Hood River Counties, Oregon

    Broader source: Energy.gov [DOE]

    Bonneville Power Administration (BPA) is preparing an EA to assess potential environmental impacts of a proposal to rebuild its 24-mile long, 115 kilovolt Bonneville-Hood River transmission line. The existing line runs between the Bonneville Powerhouse at Bonneville Dam in Multnomah County, Oregon, and BPA's existing Hood River Substation in Hood River County, Oregon. The project would include replacing structures and conductor wires, improving access roads, and constructing new access roads or trails where needed.

  10. Electrical and mechanical design criteria for EHV and UHV: overhead transmission lines

    SciTech Connect (OSTI)

    Not Available

    1980-06-01T23:59:59.000Z

    The results are presented of a program devoted to the selection of electrical and mechanical design criteria and parameters for overhead power transmission lines for ac systems rated at from 345 to 1100 kV and for dc systems rated at from 600 to 1200 kV. Information is included on the environmental effects, i.e., audible noise and electric fields, of the lines, mechanical and economic requirements, safety, failures, grounding, and lightning protection. (LCL)

  11. Statistical Modeling of Corrosion Failures in Natural Gas Transmission Pipelines 

    E-Print Network [OSTI]

    Cobanoglu, Mustafa Murat

    2014-03-28T23:59:59.000Z

    Natural gas pipelines are a critical component of the U.S. energy infrastructure. The safety of these pipelines plays a key role for the gas industry. Therefore, the understanding of failure characteristics and their consequences are very important...

  12. Canby Area Service Project substation and associated transmission line. Environmental Assessment

    SciTech Connect (OSTI)

    Not Available

    1992-02-01T23:59:59.000Z

    Bonneville Power Administration (BPA) provides power to Surprise Valley Electrification Corporation (SVEC) in Modoc County, California. BPA uses PacificCorp`s substation and transmission facilities between Alturas and Canby, California to transfer power to SVEC`s Canby Substation. In the next year, SVEC expects increased industrial, agricultural, and residential electric loads on their 69-kV transmission system south of Canby. SVEC`s substation can accommodate only about 10 percent of the expected additional electric load. BPA`s proposed action is intended to meet SVEC`s increasing electric load. BPA proposes to meet SVEC`s increasing energy load by tapping into BPA`s existing BPA Malin-Warner 230-kV transmission line, and building an 7.9-mile transmission line to a new BPA substation. BPA proposes to build the new substation next to the west side of SVEC`s Canby Substation (Figure 1). This new substation will allow SVEC to move the additional power over their existing transmission or distribution lines. This report is the environmental assessment of the potential impact of the proposed project. The assessment determined that no ``environmental impact statement`` is not required.

  13. Canby Area Service Project : Substation and Associated Transmission Line : Environmental Assessment.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    1992-02-01T23:59:59.000Z

    Bonneville Power Administration (BPA) provides power to Surprise Valley Electrification Corporation (SVEC) in Modoc County, California. BPA uses PacificCorp's substation and transmission facilities between Alturas and Canby, California to transfer power to SVEC's Canby Substation. In the next year, SVEC expects increased industrial, agricultural, and residential electric loads on their 69-kV transmission system south of Canby. SVEC's substation can accommodate only about 10 percent of the expected additional electric load. BPA's proposed action is intended to meet SVEC's increasing electric load. BPA proposes to meet SVEC's increasing energy load by tapping into BPA's existing BPA Malin-Warner 230-kV transmission line, and building an 7.9-mile transmission line to a new BPA substation. BPA proposes to build the new substation next to the west side of SVEC's Canby Substation (Figure 1). This new substation will allow SVEC to move the additional power over their existing transmission or distribution lines. This report is the environmental assessment of the potential impact of the proposed project. The assessment determined that no environmental impact statement'' is not required.

  14. EA-1972: Electric District 2 to Saguaro No. 2 Transmission Line Rebuild, Pinal County, Arizona

    Broader source: Energy.gov [DOE]

    Western Area Power Administration issued a Draft EA that assesses the potential environmental impacts of the proposed rebuild of a 35.6-mile transmission line that Western operates and maintains under an agreement with the Central Arizona Project. Additional information is available on the project website, http://www.wapa.gov/dsw/environment/ED2DOEEA1972.htm.

  15. Amended Notice of Intent for the Northern Pass Transmission Line Project Published in the Federal Register

    Broader source: Energy.gov [DOE]

    The Department of Energy announces its intent to modify the scope of the Northern Pass Transmission Line Project Environmental Impact Statement and to conduct additional public scoping meetings. The Federal Register Notice, which is now available for downloading, includes information on how to submit comments and participate in the additional public scoping meetings.

  16. Fabrication and Characterization of Spinel Magnetic Nanoparticle Thin Film Transmission Lines

    E-Print Network [OSTI]

    Papapolymerou, Ioannis "John"

    - Munich 2003 1307 #12;2 the glass slide. By altemating from a solution of amine-coated nanoparticles1 Fabrication and Characterization of Spinel Magnetic Nanoparticle Thin Film Transmission Lines-Spinel magnetic nanoparticle thin films were fabricated on high resistivity silicon substrates. TRL (through

  17. EA-2007: Groton-Ordway 115-kV Transmission Line, Groton, South Dakota

    Broader source: Energy.gov [DOE]

    DOE’s Western Area Power Administration (Upper Great Plains Region) is preparing an EA that assesses the potential environmental impacts of a proposal to construct a new 115-kV transmission line that would connect Western’s existing Groton and Ordway Substations near Groton, South Dakota.

  18. EA-1967: Hills Creek-Lookout Point Transmission Line Rebuild, Lane County, Oregon

    Broader source: Energy.gov [DOE]

    Bonneville Power Administration is preparing an EA to assess potential environmental impacts of the proposed rebuild of its 26-mile 115 kilovolt (kV) wood-pole Hills Creek-Lookout Point transmission line, which is generally located between Lowell and Oakridge, in Lane County, Oregon.

  19. EA-1961: Kalispell-Kerr Transmission Line Rebuild Project, Kalispell and Polson, Montana

    Broader source: Energy.gov [DOE]

    Bonneville Power Administration is preparing an EA to evaluate potential environmental impacts of rebuilding its 41-mile long 115 kilovolt (kV) wood-pole Kalispell-Kerr transmission line between Kalispell and Polson, Montana. Additional information is available on the project website, http://efw.bpa.gov/environmental_services/Document_Library/KALISPELL_KERR/.

  20. EIS-0502: Hot Springs to Anaconda Transmission Line Rebuild Project, Montana

    Broader source: Energy.gov [DOE]

    DOE’s Bonneville Power Administration (BPA) is preparing an EIS that will analyze the potential environmental impacts of a proposal to rebuild approximately 120 miles of existing transmission line in Sanders, Lake, Missoula, Granite, Powell, and Deer Lodge Counties in Montana.

  1. EIS-0103: New England/Hydro-Quebec 450-kV Direct Current Transmission Line Interconnection

    Broader source: Energy.gov [DOE]

    The Economic Regulatory Administration prepared this statement to evaluate the environmental impacts of the construction, maintenance and operation of a 57-mile transmission line from Monroe, New Hampshire, to the U.S./Canadian border for the purpose of economic exchange of power and increased reliability.

  2. EA-1950: Grand Coulee-Creston Transmission Line Rebuild; Grant and Lincoln Counties, Washington

    Broader source: Energy.gov [DOE]

    Bonneville Power Administration prepared this EA to evaluate potential environmental impacts of rebuilding approximately 28 miles of the Grand Coulee-Creston No. 1 115-kilovolt (kV) transmission line between Coulee Dam in Grant County and Creston in Lincoln County, Washington.

  3. EA-1946: Salem-Albany Transmission Line Rebuild Project; Polk, Benton, Marion, and Linn Counties, Oregon

    Broader source: Energy.gov [DOE]

    Bonneville Power Administration is preparing an EA to assess the potential environmental impacts of the proposed rebuild of the 24-mile Salem-Albany No. 1 and 28-mile Salem-Albany No. 2 transmission lines between Salem and Albany, Oregon.

  4. Three-dimensional isotropic perfect lens based on LC-loaded transmission lines

    E-Print Network [OSTI]

    P. Alitalo; S. Maslovski; S. Tretyakov

    2005-09-16T23:59:59.000Z

    An isotropic three-dimentional perfect lens based on cubic meshes of interconnected transmission lines and bulk loads is proposed. The lens is formed by a slab of a loaded mesh placed in between two similar unloaded meshes. The dispersion equations and the characteristic impedances of the eigenwaves in the meshes are derived analytically, with an emphasis on generality. This allows designing of transmission-line meshes with desired dispersion properties. The required backward-wave mode of operation in the lens is realized with simple inductive and capacitive loads. An analytical expression for the transmission through the lens is derived and the amplification of evanescent waves is demonstrated. Factors that influence enhancement of evanescent waves in the lens are studied and the corresponding design criteria are established. A possible realization of the structure is outlined.

  5. The Reliability Investigation on ACSR Splice Connector Systems Used in Overhead Power transmission Lines

    SciTech Connect (OSTI)

    Wang, Jy-An John [ORNL] [ORNL; Jiang, Hao [ORNL] [ORNL; Ren, Fei [ORNL] [ORNL

    2012-01-01T23:59:59.000Z

    Due to material discontinuity and inherited forming mechanism from a crimped-type splice connector, the associated conductor-connector system is highly sensitive to system components aging, especially during high-temperature operations. Furthermore, due to the increase in power demand and limited investment in new infrastructure, existing overhead power transmission lines often need to operate at temperatures higher than the original designed values. This has led to the accelerated aging and degradation of conductor-connector systems. The implications of connector aging are two-fold: (1) significant increase in resistivity of the splice connector and (2) significant reduction in the connector clamping strength. Therefore, splice connectors are one of the weakest links in the electric power transmission infrastructure. In this paper we will discuss the reliability of splice connector systems, including both single stage and two stage splice connectors, used in ACSR conductor of transmission lines under high temperature operations.

  6. Sidney-North Yuma 230-kV Transmission Line Project, Colorado and Nebraska

    SciTech Connect (OSTI)

    Not Available

    1991-06-01T23:59:59.000Z

    This report describes the need for a 230-kV overhead transmission line to supply power from Sidney, Nebraska to eastern Colorado. The alternative scenario compared to construction of the line is No Action. Rejected alternatives include underground lines and different routing paths, with a possible extension to the Sterling area. Both scenarios are evaluated for environmental effects, cost, and consequences for the eastern Colorado region. The proposed route is determined to be the environmentally preferred choice. 120 refs., 6 figs., 13 tabs. (MHB)

  7. Gas Utilities (New York)

    Broader source: Energy.gov [DOE]

    This chapter regulates natural gas utilities in the State of New York, and describes standards and procedures for gas meters and accessories, gas quality, line and main extensions, transmission and...

  8. Kangley - Echo Lake Transmission Line Project Supplemental Draft Environmental Impact Statement

    SciTech Connect (OSTI)

    N /A

    2003-01-10T23:59:59.000Z

    Bonneville Power Administration (BPA) is proposing to build a new transmission line to accommodate increasing demand for electricity and address reliability concerns in the Puget Sound area. The Proposed Action would construct a new line that would connect to an existing transmission line near the community of Kangley, and then connect with BPA's existing Echo Lake Substation. The major purpose of this proposal is to improve system reliability in the King County area. An outage on an existing line during times of heavy use, such as during a winter cold snap, could cause voltage instability and a loss of power in the King County area. System planners have projected total system load using normal growth in demand and determined that system instability could develop as early as the winter of 2002-03. Besides meeting this need for system reliability, this project would enhance the United States' delivery of power to Canada as required under the Columbia River Treaty of 1961. BPA described and analyzed transmission route alternatives in a draft environmental impact statement (DEIS) released in June 2001. The DEIS identified a preferred alternative that would parallel an existing BPA transmission line through the Cedar River Municipal Watershed. BPA received over 700 comments from landowners, agencies, tribes and special interest groups on the DEIS. Many of the comments suggested BPA re-evaluate the range of alternatives considered and prepare a supplemental draft environmental impact statement (SDEIS). After reviewing the comments and refining the cost estimates associated with BPA's preferred alternative, BPA decided to prepare this SDEIS to re-evaluate alternatives not analyzed in detail in the DEIS. The added transmission alternatives, all located outside of the Cedar River Watershed, were initially considered but dropped from detailed analysis. They are identified as Alternatives A, B, C, and D. Alternatives A and C are located to the west of the Cedar River Watershed boundary. Alternatives B and D cross the Mt. Baker-Snoqualmie and Okanogan-Wenatchee National Forests. Under all transmission alternatives, Echo Lake Substation would be expanded about three acres to the east and new equipment to accommodate the new line would be installed. BPA is also considering a Non-Transmission Alternative and the No Action Alternative.

  9. Model documentation: Natural gas transmission and distribution model of the National Energy Modeling System. Volume 1

    SciTech Connect (OSTI)

    NONE

    1995-02-17T23:59:59.000Z

    The Natural Gas Transmission and Distribution Model (NGTDM) is the component of the National Energy Modeling System (NEMS) that is used to represent the domestic natural gas transmission and distribution system. NEMS was developed in the Office of integrated Analysis and Forecasting of the Energy information Administration (EIA). NEMS is the third in a series of computer-based, midterm energy modeling systems used since 1974 by the EIA and its predecessor, the Federal Energy Administration, to analyze domestic energy-economy markets and develop projections. The NGTDM is the model within the NEMS that represents the transmission, distribution, and pricing of natural gas. The model also includes representations of the end-use demand for natural gas, the production of domestic natural gas, and the availability of natural gas traded on the international market based on information received from other NEMS models. The NGTDM determines the flow of natural gas in an aggregate, domestic pipeline network, connecting domestic and foreign supply regions with 12 demand regions. The methodology employed allows the analysis of impacts of regional capacity constraints in the interstate natural gas pipeline network and the identification of pipeline capacity expansion requirements. There is an explicit representation of core and noncore markets for natural gas transmission and distribution services, and the key components of pipeline tariffs are represented in a pricing algorithm. Natural gas pricing and flow patterns are derived by obtaining a market equilibrium across the three main elements of the natural gas market: the supply element, the demand element, and the transmission and distribution network that links them. The NGTDM consists of four modules: the Annual Flow Module, the Capacity F-expansion Module, the Pipeline Tariff Module, and the Distributor Tariff Module. A model abstract is provided in Appendix A.

  10. McNary-John Day Transmission Line Project, Final Environmental Impact Statement

    SciTech Connect (OSTI)

    N /A

    2002-08-30T23:59:59.000Z

    Bonneville is proposing to construct, operate, and maintain a 79-mile-long 500-kilovolt-transmission line in Benton and Klickitat Counties, Washington, and Umatilla and Sherman Counties, Oregon. The new line would start at Bonneville's McNary Substation in Oregon and would cross the Columbia River just north of the substation into Washington. The line would then proceed west for about 70 miles along the Columbia River. At the John Day Dam, the line would again cross the Columbia River into Oregon and terminate at Bonneville's John Day Substation. The new line would parallel existing transmission lines for the entire length; mostly within existing available right-of-way. Presently, the existing transmission lines in the area are operating at capacity. These lines help move power from the east side of the Cascades to the west side, where there is a high need for electricity (cities along the I-5 corridor). Because the Northwest has only recently recovered from a shortfall in electric energy supply and a volatile wholesale power market in which prices reached record highs, there are many new proposals for facilities to generate new power. Some of these facilities are in the vicinity of the McNary-John Day project; the proposed line would help insure that existing and newly generated power could move through the system. Bonneville is also considering the No Action Alternative and several short-line routing alternatives. The short routing alternatives include three half-mile-long routes for getting from the McNary Substation to the Columbia River crossing; three two-mile-long routes where the Hanford-John Day transmission line joins the existing corridor; two 1,000-foot-long routes at corridor mile 32; and two 500-foot-long routes at corridor mile 35. This abbreviated final EIS consists of an introduction to the document, changes to the draft EIS, copies of all the comments received on the draft EIS, and Bonneville's written responses to the comments. The final EIS should be used as a companion document to the draft EIS (dated February 2002), which contains the full text of the affected environment, environmental analysis, and appendices.

  11. EIS-0505: Vantage to Pomona Heights 230 kV Transmission Line Project, Yakima, Grant, Benton and Kittitas Counties, Washington

    Broader source: Energy.gov [DOE]

    The Bureau of Land Management is preparing, with DOE’s Bonneville Power Administration (BPA) as a cooperating agency, an EIS that evaluates the potential environmental impacts of a proposal to construct a 60- to 67-mile long 230-kV transmission line. BPA’s proposed action is to interconnect the transmission line to an existing BPA substation.

  12. Tucson Electric Power Company Sahuarita-Nogales Transmission Line Draft Environmental Impact Statement

    SciTech Connect (OSTI)

    N /A

    2003-08-27T23:59:59.000Z

    Tucson Electric Power Company (TEP) has applied to the U.S. Department of Energy (DOE) for a Presidential Permit to construct and operate a double-circuit, 345,000-volt (345-kV) electric transmission line across the United States border with Mexico. Under Executive Order (EO) 10485 of September 3, 1953, as amended by EO 12038 of February 3, 1978, a Presidential Permit is required to construct, connect, operate, or maintain facilities at the U.S. international border for the transmission of electric energy between the United States and a foreign country. DOE has determined that the issuance of a Presidential Permit to TEP for the proposed project would constitute a major Federal action that may have a significant impact on the environment within the meaning of the ''National Environmental Policy Act of 1969'' (NEPA) 42 United States Code (U.S.C.) {section}4321 et seq. For this reason, DOE has prepared this Draft Environmental Impact Statement (EIS) to evaluate potential environmental impacts from the proposed Federal action (granting a Presidential Permit for the proposed transmission facilities) and reasonable alternatives, including the No Action Alternative. This EIS was prepared in accordance with Section 102(2)(c) of NEPA, Council of Environmental Quality (CEQ) regulations (40 Code of Federal Regulations [CFR] 1500-1508), and DOE NEPA Implementing Procedures (10 CFR 1021). DOE is the lead Federal Agency, as defined by 40 CFR 1501.5. The U.S. Department of Agriculture Forest Service (USFS), the Bureau of Land Management (BLM) of the U.S. Department of the Interior, and the U.S. Section of the International Boundary and Water Commission, U.S. and Mexico (USIBWC), are cooperating agencies. Each of these organizations will use the EIS for its own NEPA purposes, as described in the Federal Agencies' Purpose and Need and Authorizing Actions section of this summary. The 345-kV double-circuit transmission line would consist of twelve transmission line wires, or conductors, and two neutral ground wires that would provide both lightning protection and fiber optic communications, on a single set of support structures. The transmission line would originate at TEP's existing South Substation (which TEP would expand), in the vicinity of Sahuarita, Arizona, and interconnect with the Citizens Communications (Citizens) system at a Gateway Substation that TEP would construct west of Nogales, Arizona. The double-circuit transmission line would continue from the Gateway Substation south to cross the U.S.-Mexico border and extend approximately 60 miles (mi) (98 kilometers [km]) into the Sonoran region of Mexico, connecting with the Comision Federal de Electricidad (CFE, the national electric utility of Mexico) at CFE's Santa Ana Substation.

  13. Environmental Assessment of the Gering-Stegall 115-kV Transmission Line Consolidation Project, Scotts Bluff County, Nebraska

    SciTech Connect (OSTI)

    NONE

    1995-05-01T23:59:59.000Z

    The Department of Energy (DOE), Western Area Power Administration (Western) proposes to consolidate segments of two transmission lines near the Gering Substation in Gering, Nebraska. The transmission lines are both located in Scotts Bluff County, Nebraska. The transmission lines are both located in Scotts Bluff County, Nebraska, within the city of Gering. Presently, there are three parallel 115-kilovolt (kV) transmission lines on separate rights-of-way (ROW) that terminate at the Gering Substation. The project would include dismantling the Archer-Gering wood-pole transmission line and rebuilding the remaining two lines on single-pole steel double circuit structures. The project would consolidate the Gering-Stegall North and Gering-Stegall South 115-kV transmission lines on to one ROW for a 1.33-mile segment between the Gering Substation and a point west of the Gering Landfill. All existing wood-pole H-frame structures would be removed, and the Gering-Stegall North and South ROWs abandoned. Western is responsible for the design, construction, operation, and maintenance of the line. Western prepared an environmental assessment (EA) that analyzed the potential environmental impacts of the proposed construction, operation, and maintenance of the 115-kV transmission line consolidation. Based on the analyses in the EA, the DOE finds that the proposed action is not a major Federal action significantly affecting the quality of the human environment, within the meaning of the National Environmental Policy Act of 1969 (NEPA).

  14. Virtual Pipeline System Testbed to Optimize the U.S. Natural Gas Transmission Pipeline System

    SciTech Connect (OSTI)

    Kirby S. Chapman; Prakash Krishniswami; Virg Wallentine; Mohammed Abbaspour; Revathi Ranganathan; Ravi Addanki; Jeet Sengupta; Liubo Chen

    2005-06-01T23:59:59.000Z

    The goal of this project is to develop a Virtual Pipeline System Testbed (VPST) for natural gas transmission. This study uses a fully implicit finite difference method to analyze transient, nonisothermal compressible gas flow through a gas pipeline system. The inertia term of the momentum equation is included in the analysis. The testbed simulate compressor stations, the pipe that connects these compressor stations, the supply sources, and the end-user demand markets. The compressor station is described by identifying the make, model, and number of engines, gas turbines, and compressors. System operators and engineers can analyze the impact of system changes on the dynamic deliverability of gas and on the environment.

  15. Plains and Eastern Clean Line Transmission Line: Comment from Alana Harrod

    Energy Savers [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 directed offOCHCO2:Introduction toManagementOPAM5Parabolic TroughPhotoCell StructureUraniumTransmission|

  16. Plains and Eastern Clean Line Transmission Line: Comment from Block Plains

    Energy Savers [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 directed offOCHCO2:Introduction toManagementOPAM5Parabolic TroughPhotoCell StructureUraniumTransmission|and

  17. Optimization for Design and Operation of Natural Gas Transmission Networks 

    E-Print Network [OSTI]

    Dilaveroglu, Sebnem 1986-

    2012-08-22T23:59:59.000Z

    designing and operating the network. A well-designed network helps natural gas companies minimize the costs while increasing the customer service level. The aim of the study is to determine the optimum installation scheduling and locations of new pipelines...

  18. Natural Gas Transmission Pipeline Intrastate Regulatory Act (Florida)

    Broader source: Energy.gov [DOE]

    The regulation of natural gas intrastate transportation and sale is deemed to be an exercise of the police power of the state for the protection of the public welfare. The Public Service Commission...

  19. The Velocity Field of Quasar Broad Emission Line Gas

    E-Print Network [OSTI]

    Brian Punsly

    2007-01-25T23:59:59.000Z

    In this Letter, the broad emission line (BEL) profiles of superluminal quasars with apparent jet velocities, $\\beta_{a}>10$, (ultraluminal QSOs, or ULQSOs hereafter) are studied as a diagnostic of the velocity field of the BEL emitting gas in quasars. The ULQSOs are useful because they satisfy a very strict kinematical constraint, their parsec scale jets must be propagating within $12^{\\circ}$ of the line of sight. We know the orientation of these objects with great certainty. The large BEL FWHM, $\\sim 3,000 \\mathrm{km/s} - 6,000 \\mathrm{km/s}$, in ULQSOs tend to indicate that the BEL gas has a larger component of axial velocity (either random or in a wind) along the jet direction than previously thought.

  20. Trans-Sahara pipe line would deliver Nigeria gas to Europe

    SciTech Connect (OSTI)

    Muenzler, M.H.

    1983-11-01T23:59:59.000Z

    Bechtel has made an in-house study of a natural gas transmission line extending from Nigeria to the Mediterranean and then on into Europe. Based upon the analysis, the pipeline project appears sufficiently viable to warrant further study. Perhaps the single most important element in design of pipelines crossing international borders is the political aspects involved in constructing, owning, and operating the line. These considerations not only effect the location of the pipeline, the manner of financing and ownership, but also whether the line will be constructed. The line crosses several international boundaries, depending upon the route selected. Each route crosses Niger. Case A crosses Algeria and into Tunisia where it ultimately would cross the Strait of Sicily into Italy. Case B crosses the Niger- Algerian border and then traverses Algeria to the Mediterranean where it is planned to connect to the Segamo pipeline and to link with the pipeline network in Spain. Case C crosses the countries of Niger, Mali, Mauritania, and into Morocco, and ultimately crosses the Mediterranean Sea close to the Strait of Gibraltar. Nigeria has proven natural gas reserves estimated to range from 2.5 to 4 trillion cu m (38 to 140 tcf).

  1. EA-1679: Grand Coulee's Third Powerplant 500-kV Transmission Line Replacement Project, Grant and Okanogon Counties, Washington

    Broader source: Energy.gov [DOE]

    This EA evaluates potential environmental impacts from the construction and operation of six new 500-kV overhead transmission lines to replace six existing underground lines at Grand Coulee Dam. DOE’s Bonneville Power Administration (BPA), a cooperating agency, was asked by the U. S. Department of the Interior’s Bureau of Reclamation to design and construct the proposed new transmission lines. A Finding of No Significant Impact was issued by BPA in December 2011.

  2. Quantum transducers: Integrating Transmission Lines and Nanomechanical Resonators via Charge Qubits

    E-Print Network [OSTI]

    C. P. Sun; L. F. Wei; Yu-xi Liu; Franco Nori

    2005-08-16T23:59:59.000Z

    We propose a mechanism to interface a transmission line resonator (TLR) with a nano-mechanical resonator (NAMR) by commonly coupling them to a charge qubit, a Cooper pair box with a controllable gate voltage. Integrated in this quantum transducer or simple quantum network, the charge qubit plays the role of a controllable quantum node coherently exchanging quantum information between the TLR and NAMR. With such an interface, a maser-like process is predicted to create a quasi-classical state of the NAMR by controlling a single-mode classical current in the TLR. Alternatively, a "Cooper pair" coherent output through the transmission line can be driven by a single-mode classical oscillation of the NAMR.

  3. Modelling Quantum Mechanics by the Quantumlike Description of the Electric Signal Propagation in Transmission Lines

    E-Print Network [OSTI]

    R. Fedele; M. A. Man'ko; V. I. Man'ko; V. G. Vaccaro

    2002-07-30T23:59:59.000Z

    It is shown that the transmission line technology can be suitably used for simulating quantum mechanics. Using manageable and at the same time non-expensive technology, several quantum mechanical problems can be simulated for significant tutorial purposes. The electric signal envelope propagation through the line is governed by a Schrodinger-like equation for a complex function, representing the low-frequency component of the signal, In this preliminary analysis, we consider two classical examples, i.e. the Frank-Condon principle and the Ramsauer effect.

  4. Transmission line relay mis-operation detection based on time-synchronized field data

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

    Esmaeilian, Ahad; Popovic, Tomo; Kezunovic, Mladen

    2015-08-01T23:59:59.000Z

    In this paper, a real-time tool to detect transmission line relay mis-operation is implemented. The tool uses time-synchronized measurements obtained from both ends of the line during disturbances. The proposed fault analysis tool comes into the picture only after the protective device has operated and tripped the line. The proposed methodology is able not only to detect, classify, and locate transmission line faults, but also to accurately confirm whether the line was tripped due to a mis-operation of protective relays. The analysis report includes either detailed description of the fault type and location or detection of relay mis-operation. As such,more »it can be a source of very useful information to support the system restoration. The focus of the paper is on the implementation requirements that allow practical application of the methodology, which is illustrated using the field data obtained the real power system. Testing and validation is done using the field data recorded by digital fault recorders and protective relays. The test data included several hundreds of event records corresponding to both relay mis-operations and actual faults. The discussion of results addresses various challenges encountered during the implementation and validation of the presented methodology.« less

  5. EA-1551: Montana Alberta Tie Ltd. (MATL) 230-KV Transmission Line

    Broader source: Energy.gov [DOE]

    DOE started to prepare, jointly with the Montana Department of Environmental Quality (MDEQ), an EA that would also serve as a state EIS. The document would evaluate the potential environmental impacts of a proposed international transmission line that would cross the U.S.-Canada border in northwest Montana. Based on comments received on the DOE Draft EA/MDEQ Draft EIS, DOE cancelled preparation of the EA and announced preparation of DOE/EIS-0399 (of the same title).

  6. EIS-0365: Imperial-Mexicali 230-kV Transmission Lines

    Broader source: Energy.gov [DOE]

    On February 27, 2001, Baja California Power, Inc. (hereafter referred to as Intergen), InterGen Aztec Energy, V.B.V., filed an application with DOE, Office of Fossil Energy, for a Presidential permit that would allow construction and connection of a double-circuit, 230-kV transmission line extending from the Imperial Valley Substation in California for a distance of about 6 mi (10 km) to a point west of Calexico at the U.S.-Mexico border.

  7. EIS-0301: NRG Energy Services, Inc., Arizona-Baja California 500 kV Transmission Line

    Broader source: Energy.gov [DOE]

    This EIS analyzes DOE's decision to approve NRG Energy, Inc. (NRG) for a Presidential permit to construct a 500,000-volt transmission line originating at the switchyard of the Palo Verde Nuclear Generating Station near Phoenix, Arizona, and extending approximately 177 miles to the southwest, where it would cross the United States (U.S.) border with Mexico in the vicinity of Calexico, California.

  8. Termination for a superconducting power transmission line including a horizontal cryogenic bushing

    DOE Patents [OSTI]

    Minati, Kurt F. (Northport, NY); Morgan, Gerry H. (Patchogue, NY); McNerney, Andrew J. (Shoreham, NY); Schauer, Felix (Upton, NY)

    1984-01-01T23:59:59.000Z

    A termination for a superconducting power transmission line is disclosed which is comprised of a standard air entrance insulated vertical bushing with an elbow, a horizontal cryogenic bushing linking the pressurized cryogenic cable environment to the ambient temperature bushing and a stress cone which terminates the cable outer shield and transforms the large radial voltage gradient in the cable dielectric into a much lower radial voltage gradient in the high density helium coolant at the cold end of the cryogenic bushing.

  9. EIS-0483: Estes to Flatiron Substation Transmission Lines Rebuild Project, Larimer County, Colorado

    Broader source: Energy.gov [DOE]

    Western Area Power Administration (Western) – with USDA Forest Service, Arapaho and Roosevelt National Forest, as a cooperating agency – is preparing an EIS that analyzes the potential environmental impacts of a proposal to rebuild and upgrade two 115-kilovolt single-circuit transmission lines between the Flatiron Substation and the intersection of Mall Road and U.S. Highway 36 in Estes Park, Larimer County, Colorado. Additional information is available on Western’s project website.

  10. Horizontal cryogenic bushing for the termination of a superconducting power-transmission line

    DOE Patents [OSTI]

    Minati, K.F.; Morgan, G.H.; McNerney, A.J.; Schauer, F.

    1982-07-29T23:59:59.000Z

    A termination for a superconducting power transmission line is disclosed which is comprised of a standard air entrance insulated vertical bushing with an elbow, a horizontal cryogenic bushing linking the pressurized cryogenic cable environment to the ambient temperature bushing and a stress cone which terminated the cable outer shield and transforms the large radial voltage gradient in the cable dielectric into a much lower radial voltage gradient in the high density helium coolant at the cold end of the cryogenic bushing.

  11. Fort Peck-Havre transmission line project, Hill, Blaine, Phillips, Valley and McCone Counties, Montana

    SciTech Connect (OSTI)

    Not Available

    1982-09-01T23:59:59.000Z

    Construction and operation of a 180-mile, 230-kilovlt (kV) transmission line between Fort Peck and Havre, Montana is proposed to provide a replacement for the 161-kV line that currently runs between the two cities. The new line would be carried on woodpole, H-frame structures. The existing 161-kV line would be removed, and the Richardson Coulee Substation would be relocated. Intermediate facilities to be improved would include the Fort Peck Switchyard and the Richardson Coulee, Malta, Harlem, and Havre substations.Construction of the line would commence in August 1983, and operation would commence in January 1986. The expected life of the transmission system would be 100 years. Estimated cost of the project, in 1983 dollars, is $36.1 million. The project would upgrade an essential element of the Western Area Power Administration's electric power system and the Montana Power Company's interconnected transmission network. Continued electric service reliability would be improved, and safety conditions affecting personnel who maintain the line would be enhanced. Additional transmission capacity would be provided to accommodate future load growth, precluding the need for multiple transmission lines. The line would eleminate seven acres of productive land and create physical conflicts with present and future agricultural activities. The line would traverse areas characterized by concentrations of archaeological resources and cultural resources of importance to native Americans. Transmission structures could mar scenery in areas with historically significant architecture and would interfere with waterfowl.

  12. Bias-field controlled phasing and power combination of gyromagnetic nonlinear transmission lines

    SciTech Connect (OSTI)

    Reale, D. V., E-mail: david.reale@ttu.edu; Bragg, J.-W. B.; Gonsalves, N. R.; Johnson, J. M.; Neuber, A. A.; Dickens, J. C.; Mankowski, J. J. [Center for Pulsed Power and Power Electronics, Texas Tech University, Lubbock, Texas 79409 (United States)

    2014-05-15T23:59:59.000Z

    Gyromagnetic Nonlinear Transmission Lines (NLTLs) generate microwaves through the damped gyromagnetic precession of the magnetic moments in ferrimagnetic material, and are thus utilized as compact, solid-state, frequency agile, high power microwave (HPM) sources. The output frequency of a NLTL can be adjusted by control of the externally applied bias field and incident voltage pulse without physical alteration to the structure of the device. This property provides a frequency tuning capability not seen in many conventional e-beam based HPM sources. The NLTLs developed and tested are mesoband sources capable of generating MW power levels in the L, S, and C bands of the microwave spectrum. For an individual NLTL the output power at a given frequency is determined by several factors including the intrinsic properties of the ferrimagnetic material and the transmission line structure. Hence, if higher power levels are to be achieved, it is necessary to combine the outputs of multiple NLTLs. This can be accomplished in free space using antennas or in a transmission line via a power combiner. Using a bias-field controlled delay, a transient, high voltage, coaxial, three port, power combiner was designed and tested. Experimental results are compared with the results of a transient COMSOL simulation to evaluate combiner performance.

  13. Algorithms for Noisy Problems in Gas Transmission Pipeline Optimization \\Lambda

    E-Print Network [OSTI]

    linear interpolations of these data rather than the raw simulations, both to protect proprietary data trillion standard cubic feet of natural gas per year, representing roughly a third of worldwide consumption in such regions as Louisiana, the Texas Gulf Coast, and \\Lambda This research was supported by National Science

  14. Algorithms for Noisy Problems in Gas Transmission Pipeline Optimization

    E-Print Network [OSTI]

    linear interpolations of these data rather than the raw simulations, both to protect proprietary data trillion standard cubic feet of natural gas per year, representing roughly a third of worldwide consumption in such regions as Louisiana, the Texas Gulf Coast, and This research was supported by National Science Foundation

  15. Natural Gas Transmission and Distribution Model of the National Energy Modeling System. Volume 1

    SciTech Connect (OSTI)

    NONE

    1998-01-01T23:59:59.000Z

    The Natural Gas Transmission and Distribution Model (NGTDM) is the component of the National Energy Modeling System (NEMS) that is used to represent the domestic natural gas transmission and distribution system. The NGTDM is the model within the NEMS that represents the transmission, distribution, and pricing of natural gas. The model also includes representations of the end-use demand for natural gas, the production of domestic natural gas, and the availability of natural gas traded on the international market based on information received from other NEMS models. The NGTDM determines the flow of natural gas in an aggregate, domestic pipeline network, connecting domestic and foreign supply regions with 12 demand regions. The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic design, provides detail on the methodology employed, and describes the model inputs, outputs, and key assumptions. Subsequent chapters of this report provide: an overview of NGTDM; a description of the interface between the NEMS and NGTDM; an overview of the solution methodology of the NGTDM; the solution methodology for the Annual Flow Module; the solution methodology for the Distributor Tariff Module; the solution methodology for the Capacity Expansion Module; the solution methodology for the Pipeline Tariff Module; and a description of model assumptions, inputs, and outputs.

  16. Productivity and Efficiency of US Gas Transmission Companies: A European Regulatory Perspective

    E-Print Network [OSTI]

    Jamasb, Tooraj; Pollitt, Michael G.; Triebs, T

    the Atlantic.4 Lastly, we would like to stress that all our conclusions apply to gas transmission only. Both in the US and in Europe different energy networks are regulated in different ways and with varying levels of success. This paper is organized... treats output as the “right-hand side” of our cost model and cost as input. We now discuss our variables one at a time. First, we turn to outputs or cost-drivers. Much of the literature on gas transmission uses production functions where the prime...

  17. Auctions to gas transmission access: The British experience

    E-Print Network [OSTI]

    McDaniel, Tanga; Neuhoff, Karsten

    2004-06-16T23:59:59.000Z

    approach As can be seen in Figure 4 there are six major beach terminals in Great Britain where gas is put into the NTS: St. Fergus, Teeside, Easington, Theddlethorpe and Bacton on the east-coast and Barrow on the west-coast. The auctions for rights... an auction mechanism for allocating rights was introduced. Comparing the different allocation methods we conclude that where there is competition at entry terminals auctions have been successful with respect to anticipating spot prices, capturing producer...

  18. Traction drive automatic transmission for gas turbine engine driveline

    DOE Patents [OSTI]

    Carriere, Donald L. (Livonia, MI)

    1984-01-01T23:59:59.000Z

    A transaxle driveline for a wheeled vehicle has a high speed turbine engine and a torque splitting gearset that includes a traction drive unit and a torque converter on a common axis transversely arranged with respect to the longitudinal centerline of the vehicle. The drive wheels of the vehicle are mounted on a shaft parallel to the turbine shaft and carry a final drive gearset for driving the axle shafts. A second embodiment of the final drive gearing produces an overdrive ratio between the output of the first gearset and the axle shafts. A continuously variable range of speed ratios is produced by varying the position of the drive rollers of the traction unit. After starting the vehicle from rest, the transmission is set for operation in the high speed range by engaging a first lockup clutch that joins the torque converter impeller to the turbine for operation as a hydraulic coupling.

  19. Group velocities in coplanar strip transmission lines on Si and Si/SiO2 /Si substrates measured using differential electro-optic sampling

    E-Print Network [OSTI]

    Group velocities in coplanar strip transmission lines on Si and Si/SiO2 /Si substrates measured 1996; accepted for publication 26 August 1996 The group velocities in coplanar strip transmission lines-9 Velocity measurements have been previously carried out for coplanar transmission lines on a variety

  20. IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 15, NO. 12, DECEMBER 2007 1289 Efficient Modeling of Transmission Lines With

    E-Print Network [OSTI]

    Mazumder, Pinaki

    1289 Efficient Modeling of Transmission Lines With Electromagnetic Wave Coupling by Using the Finite the transmission line with radiated electromagnetic (EM) wave noise coupling. A discrete modeling approach, the FDQ method adapts coarse grid points along the transmission line to compute the finite difference between

  1. Abstract -In this paper, new formulations for the energy dissipation of lossy transmission lines driven by CMOS inverters are provided. These

    E-Print Network [OSTI]

    Heydari, Payam

    Abstract - In this paper, new formulations for the energy dissipation of lossy transmission lines for the driv- ing-point impedance of lossy coupled transmission lines which itself is derived by solving complicated transmission line equations directly. 1. INTRODUCTION The semiconductor industry is continually

  2. Blythe-Knob\t161-kV\tTransmission\tLine Cross\tArm\tReplacements\t...

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

    9 Blythe-Knob 161-kV Transmission Line Cross Arm Replacements - Continuation Sheet Project Description (continued) The wood cross arms on a number of wood H-frame structures have...

  3. EA-1951: Midway-Moxee Rebuild and Midway-Grandview Upgrade Transmission Line, Benton and Yakima Counties, Washington

    Broader source: Energy.gov [DOE]

    Bonneville Power Administration is preparing an EA to assess the potential environmental impacts of the proposed rebuild of the 34-mile Midway-Moxee transmission line in Benton and Yakima Counties, Washington.

  4. Nest predation, predator abundance, and avian diversity in transmission line corridors and adjacent habitats in east central Texas

    E-Print Network [OSTI]

    Hubbard, Tani Ann

    2000-01-01T23:59:59.000Z

    Transmission line corridors and other types of rights-of-way (ROW) are narrower and more continuous than other types of disturbances and, therefore, result in a proportionately higher amount of "edge" in the vegetation types they bisect. These ROW...

  5. Interdependencies of Electricity Markets with Gas Markets A Case Study of Transmission System Operators

    E-Print Network [OSTI]

    Dixon, Juan

    1 Interdependencies of Electricity Markets with Gas Markets ­ A Case Study of Transmission System and regulatory intervention. Three generic Case Studies of countries belonging to the Americas are discussed Case Studies (Latin America; Canada and the USA). 2. 1. Latin America The primary challenge for Latin

  6. Gas mixing system for imaging of nanomaterials under dynamic environments by environmental transmission electron microscopy

    SciTech Connect (OSTI)

    Akatay, M. Cem [School of Materials Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907 (United States)] [School of Materials Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907 (United States); Zvinevich, Yury; Ribeiro, Fabio H., E-mail: fabio@purdue.edu, E-mail: estach@bnl.gov [Forney Hall of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907 (United States); Baumann, Philipp [Computer Sciences, University of Applied Sciences of Northeastern Switzerland, 4132 Muttenz, Switzerland and Department of Physics, Yeshiva University, New York, New York 10016 (United States)] [Computer Sciences, University of Applied Sciences of Northeastern Switzerland, 4132 Muttenz, Switzerland and Department of Physics, Yeshiva University, New York, New York 10016 (United States); Stach, Eric A., E-mail: fabio@purdue.edu, E-mail: estach@bnl.gov [Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973 (United States)

    2014-03-15T23:59:59.000Z

    A gas mixing manifold system that is capable of delivering a stable pressure stream of a desired composition of gases into an environmental transmission electron microscope has been developed. The system is designed to provide a stable imaging environment upon changes of either the composition of the gas mixture or upon switching from one gas to another. The design of the system is described and the response of the pressure inside the microscope, the sample temperature, and sample drift in response to flow and composition changes of the system are reported.

  7. EA-1931: Keeler to Tillamook Transmission Line Rebuild Project, Washington and Tillamook Counties, Oregon

    Broader source: Energy.gov [DOE]

    Bonneville Power Administration prepared this EA to assess the potential environmental impacts of the proposed rebuild of the Keeler-Forest Grove and Forest Grove-Tillamook 115-kilovolt (kV) transmission lines between the cities of Hillsboro and Tillamook, in Washington and Tillamook Counties, Oregon. The 58-mile-long rebuild would include replacement of all wood-pole structures over 10 years in age. Some existing access roads would be improved to accommodate construction equipment and some new road access would be acquired or constructed in areas where access is not available.

  8. A short model excitation of an asymmetric force free superconducting transmission line magnet

    SciTech Connect (OSTI)

    Wake, M.; Sato, H.; /KEK, Tsukuba; Carcagno, R.; Foster, W.; Hays, S.; Kashikhin, V.; Oleck, A.; Piekarz, H.; Rabehl, R,; /Fermilab

    2005-09-01T23:59:59.000Z

    A short model of asymmetric force free magnet with single beam aperture was tested at Fermilab together with the excitation test of VLHC transmission line magnet. The design concept of asymmetric force free superconducting magnet was verified by the test. The testing reached up to 104 kA current and no indication of force imbalance was observed. Since the model magnet length was only 10cm, A 0.75m model was constructed and tested at KEK with low current to ensure the validity of the design. The cool down and the excitation at KEK were also successful finding very small thermal contraction of the conductor and reasonable field homogeneity.

  9. Design and Manufacture of the RF Power Supply and RF Transmission Line for SANAEM Project Prometheus

    E-Print Network [OSTI]

    Turemen, G; Unel, G; Alacakir, A

    2015-01-01T23:59:59.000Z

    A 1-5 MeV proton beamline is being built by the Turkish Atomic Energy Authority in collaboration with a number of graduate students from different universities. The most important aspect of the project, is to acquire the design ability and manufacturing capability of all the components locally. SPP will be an accelerator and beam diagnostics test facility and it will also serve the detector development community with its low beam current. This paper discusses the design and construction of the RF power supply and the RF transmission line components such as its waveguide converters and its circulator.

  10. EIS-0112: Rifle to San Juan 345-kV Transmission Line and Associated Facilities

    Broader source: Energy.gov [DOE]

    The U.S. Department of Agriculture - Rural Electrification Administration developed this statement to evaluate the environmental impacts of the Colorado-Ute Electric Association Inc. and the U.s. Department of Energy's Western Area Power Administration (WAPA) constructing and operating a 345-kilovolt transmission line from Rifle, Colorado, to the San Juan Generating Station near Farmington, New Mexico. WAPA served as a cooperating agency in the preparation of this statement and adopted it on 10/30/1984. WAPA assumed the lead role for project implementation after issuance of the final statement.

  11. EIS-0107: Mead-Phoenix +500-kV Direct Current Transmission Line

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy’s Western Area Power Administration (WAPA) prepared this statement to analyze the potential environmental and socioeconomic impacts arising from WAPA and regional project sponsors’ proposal to construct a 500 kilovolt (kV) alternating current (AC) transmission line with the capability to be upgraded later to 500kV direct current (DC), connecting the Westwing Substation, located north of Phoenix, Arizona, with a new McCullough II Substation, located approximately 14 miles west of Boulder City, Nevada. This statement modifies a previously prepared federal statement from which the participants' election to proceed had not occurred at the time this statement was prepared.

  12. EIS-0414: Presidential Permit Application, Energia Sierra Juarez Transmission Line, California

    Broader source: Energy.gov [DOE]

    This EIS evaluates the potential environmental impacts from DOE’s proposed Federal action of granting a Presidential permit to Energia Sierra Juarez U.S. Tranmssion, LLC (ESJ-U.S.), a subsidiary of Sempra Generation, to construct, operate, maintain, and connect a 1.7-mile transmission line (0.65 miles in the U.S.) across the international border between the U.S. and Mexico, near the town of Jacumba, California. The County of San Diego is a cooperating agency in the preparation of this EIS.

  13. Big George to Carter Mountain 115-kV transmission line project, Park and Hot Springs Counties, Wyoming. Environmental Assessment

    SciTech Connect (OSTI)

    Not Available

    1994-02-01T23:59:59.000Z

    The Western Area Power Administration (Western) is proposing to rebuild, operate, and maintain a 115-kilovolt (kV) transmission line between the Big George and Carter Mountain Substations in northwest Wyoming (Park and Hot Springs Counties). This environmental assessment (EA) was prepared in compliance with the National Environmental Policy Act (NEPA) and the regulations of the Council on Environmental Quality (CEQ) and the Department of Energy (DOE). The existing Big George to Carter Mountain 69-kV transmission line was constructed in 1941 by the US Department of Interior, Bureau of Reclamation, with 1/0 copper conductor on wood-pole H-frame structures without an overhead ground wire. The line should be replaced because of the deteriorated condition of the wood-pole H-frame structures. Because the line lacks an overhead ground wire, it is subject to numerous outages caused by lightning. The line will be 54 years old in 1995, which is the target date for line replacement. The normal service life of a wood-pole line is 45 years. Under the No Action Alternative, no new transmission lines would be built in the project area. The existing 69-kV transmission line would continue to operate with routine maintenance, with no provisions made for replacement.

  14. Overhead electric power transmission line jumpering system for bundles of five or more subconductors

    DOE Patents [OSTI]

    Winkelman, Paul F. (Beaverton, OR)

    1982-01-01T23:59:59.000Z

    Jumpering of electric power transmission lines at a dead end tower. Two transmission line conductor bundles each contain five or more spaced apart subconductors (5) arranged in the shape of a cylinder having a circular cross section. The ends of each bundle of subconductors are attached with insulators to a dead end tower (1). Jumpering allows the electric current to flow between the two bundles of subconductors using jumper buses, internal jumper conductors, and external jumper conductors. One or more current collecting jumper buses (37) are located inside each bundle of subconductors with each jumper bus being attached to the end of a subconductor. Small-diameter internal jumper conductors (33) are located in the inherently electrically shielded area inside each bundle of subconductors with each subconductor (except ones having an attached jumper bus) having one internal jumper conductor connected between that subconductor's end and a jumper bus. Large-diameter external jumper conductors (9) are located outside each bundle of subconductors with one or more external jumper conductors being connected between the jumper buses in one bundle of subconductors and the jumper buses in the other bundle.

  15. EIS-0400: Granby Pumping Plant Switchyard-Windy Gap Substation Transmission Line Rebuild Project, Grand County, CO

    Broader source: Energy.gov [DOE]

    Western Area Power Administration prepared an EIS, with the U.S. Forest Service, Bureau of Land Management, and Grand County (Colorado) as cooperating agencies, to evaluate the potential environmental impacts of rebuilding a 12-mile, 69 kV electric transmission line in Grand County. The proposed project would rebuild the single-circuit line as a double-circuit transmission line and add a second power transformer. Western identified potentially significant impacts while preparing an EA for this proposal (DOE/EA-1520) and prepared an EIS instead of completing the EA. Further information about the project is available on the project website.

  16. Gas cell for in situ soft X-ray transmission-absorption spectroscopy of materials

    SciTech Connect (OSTI)

    Drisdell, W. S.; Kortright, J. B. [Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

    2014-07-15T23:59:59.000Z

    A simple gas cell design, constructed primarily from commercially available components, enables in situ soft X-ray transmission-absorption spectroscopy of materials in contact with gas at ambient temperature. The cell has a minimum X-ray path length of 1 mm and can hold gas pressures up to ?300 Torr, and could support higher pressures with simple modifications. The design enables cycling between vacuum and gas environments without interrupting the X-ray beam, and can be fully sealed to allow for measurements of air-sensitive samples. The cell can attach to the downstream port of any appropriate synchrotron beamline, and offers a robust and versatile method for in situ measurements of certain materials. The construction and operation of the cell are discussed, as well as sample preparation and proper spectral analysis, illustrated by examples of spectral measurements. Potential areas for improvement and modification for specialized applications are also mentioned.

  17. Discrete-Time Block Models for Transmission Line Channels: Static and Doubly Selective Cases

    E-Print Network [OSTI]

    Galli, Stefano

    2011-01-01T23:59:59.000Z

    Most methodologies for modeling Transmission Line (TL) based channels define the input-output relationship in the frequency domain (FD) and handle the TL resorting to a two-port network (2PN) formalism. These techniques have not yet been formally mapped into a discrete-time (DT) block model, which is useful to simulate and estimate the channel response as well as to design optimal precoding strategies. TL methods also fall short when they are applied to Time Varying (TV) systems, such as the power line channel. The objective of this paper is to establish if and how one can introduce a DT block model for the Power Line Channel. We prove that it is possible to use Lifting and Trailing Zeros (L&TZ) techniques to derive a DT block model that maps the TL-based input-output description directly in the time domain (TD) block channel model. More specifically, we find an interesting relationship between the elements of an ABCD matrix, defined in the FD, and filtering kernels that allow an elegant representation of...

  18. The commercial development of water repellent coatings for high voltage transmission lines

    SciTech Connect (OSTI)

    Hunter, Scott Robert [ORNL

    2013-10-01T23:59:59.000Z

    The purpose of the Cooperative Research and Development Agreement (CRADA) between UT-Battelle, LLC and Southwire Company was to jointly develop a low cost, commercially viable, water-repellant anti-icing coating system for high voltage transmission lines. Icing of power lines and other structures caused by freezing rain events occurs annually in the United States, and leads to severe and prolonged power outages. These outages cause untold economic and personal distress for many American families and businesses. Researchers at the Department of Energy s Oak Ridge National Laboratory (ORNL) in Oak Ridge, Tennessee have previously developed a set of superhydrophobic coatings with remarkable anti-icing properties that could potentially be sprayed or painted onto high-tension power lines and pylons. These coatings drastically reduce ice accumulation on these structures during freezing rain events. The project involved obtaining technical input, supplies and test high voltage cables from Southwire, along with the joint development of anti-icing coating techniques, which would result in a commercial license agreement between Southwire and ORNL, and potentially other companies requiring water repellent anti-icing coatings.

  19. The commercial development of water repellent coatings for high voltage transmission lines

    SciTech Connect (OSTI)

    Hunter, S. R. [ORNL] [ORNL; Daniel, A. [Southwire Company] [Southwire Company

    2013-10-31T23:59:59.000Z

    The purpose of the Cooperative Research and Development Agreement (CRADA) between UT-Battelle, LLC and Southwire Company was to jointly develop a low cost, commercially viable, water-repellant anti-icing coating system for high voltage transmission lines. Icing of power lines and other structures caused by freezing rain events occurs annually in the United States, and leads to severe and prolonged power outages. These outages cause untold economic and personal distress for many American families and businesses. Researchers at the Department of Energy?s Oak Ridge National Laboratory (ORNL) in Oak Ridge, Tennessee have previously developed a set of superhydrophobic coatings with remarkable anti-icing properties that could potentially be sprayed or painted onto high-tension power lines and pylons. These coatings drastically reduce ice accumulation on these structures during freezing rain events. The project involved obtaining technical input, supplies and test high voltage cables from Southwire, along with the joint development of anti-icing coating techniques, which would result in a commercial license agreement between Southwire and ORNL, and potentially other companies requiring water repellent anti-icing coatings.

  20. Discovery of O VII line emitting gas in elliptical galaxies

    E-Print Network [OSTI]

    Pinto, Ciro; Werner, Norbert; Kosec, Peter; Ahoranta, Jussi; de Plaa, Jelle; Kaastra, Jelle S; Sanders, Jeremy S; Zhang, Yu-Ying; Finoguenov, Alexis

    2014-01-01T23:59:59.000Z

    In the cores of ellipticals, clusters and groups of galaxies the gas has a cooling time shorter than 1 Gyr. It is possible to probe cooling flows through the detection of Fe XVII and O VII emission lines, but so far O VII was not detected in any individual object. The Reflection Grating Spectrometers (RGS) aboard XMM-Newton are currently the only instruments able to detect O VII in extended objects like elliptical galaxies and galaxy clusters. We have searched for evidence of O VII through all the archival RGS observations of galaxy clusters, groups of galaxies and elliptical galaxies focusing on those with core temperatures below 1 keV. We have discovered O VII resonance (21.6A) and forbidden (22.1A) lines for the first time in the spectra of individual objects. O VII was detected at a level higher than three sigma in six elliptical galaxies: M 84, M 86, M 89, NGC 1316, NGC 4636, and NGC 5846. M 84, M 86 and M 89 are members of the Virgo Cluster, the others are central dominant galaxies of groups, and most t...

  1. Oil and Gas Flow Data from the Top Hat and from the Choke Line...

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

    Flow Data from the Top Hat and from the Choke Line - XLS Oil and Gas Flow Data from the Top Hat and from the Choke Line - XLS Updated through 12:00 AM on July 10, 2010...

  2. Complex modes and new amplification regimes in periodic multi transmission lines interacting with an electron beam

    E-Print Network [OSTI]

    Othman, Mohamed; Capolino, Filippo

    2014-01-01T23:59:59.000Z

    We show the existence of a new regime of operation for travelling wave tubes (TWTs) composed of slow-wave periodic structures that support two or more electromagnetic modes, with at least two synchronized with an electron beam. The interaction between the slow-wave structure and an electron beam is quantified using a multi transmission line approach (MTL) and transfer matrix analysis leading to the identification of modes with complex Bloch wavenumber. In particular, we report a new operation condition for TWTs based on an electron beam synchronous to two modes exhibiting a degeneracy condition near a band edge in a MTL slow-wave periodic structure. We show a phenomenological change in the band structure of periodic TWT where we observe at least two growing modal cooperating solutions as opposed to a uniform MTL interacting with an electron beam where there is strictly only one growing mode solution.

  3. Extension of Pierce model to multiple transmission lines interacting with an electron beam

    E-Print Network [OSTI]

    Tamma, Venkata Ananth

    2013-01-01T23:59:59.000Z

    A possible route towards achieving high power microwave devices is through the use of novel slow-wave structures employing multiple coupled transmission lines (MTLs) whose behavior when coupled to electron beams have not been sufficiently explored. We present the extension of the one-dimensional linearized Pierce theory to MTLs coupled to a single electron beam. We develop multiple formalisms to calculate the k-{\\omega} dispersion relation of the system and find that the existence of a growing wave solution is always guaranteed if the electron propagation constant is larger than or equal to the largest propagation constant of the MTL system. We verify our findings with illustrative examples which bring to light unique properties of the system in which growing waves were found to exist within finite bands of the electron propagation constant and discuss possible approach to improve the gain. By treating the beam-MTL interaction as distributed dependent current generators in the MTL, we derive relations charact...

  4. Investigation of a high impedance magnetically insulated transmission line oscillator with hollow load

    SciTech Connect (OSTI)

    Zhou Heng; Shu Ting; Li Zhiqiang [College of Opto-electric Science and Engineering, National University of Defense Technology, Hunan 410073 (China)

    2012-09-15T23:59:59.000Z

    A novel high-impedance magnetically insulated transmission line oscillator (MILO) with greatly restrained power deposition on the anode has been investigated. Methods to increase the MILO impedance and decrease the anode current are discussed. A MILO with impedance of 30 {Omega} and power conversion efficiency of 25% is presented by particle-in-cell simulations. Compared with the previous MILO in our lab, the anode current of the proposed MILO is reduced about 50%, the power conversion efficiency doubles, and the power deposition on anode is reduced nearly one half. Furthermore, considerations for reducing the power deposition on load have also been carried out in MILO design, and the load current is reduced to 4.6 kA, only 17% of the total anode current. Finally, a hollow load was introduced to reduce the power deposition density on the load, without decreasing the power conversion efficiency.

  5. Theoretical and experimental investigation of axial power extraction from a magnetically insulated transmission line oscillator

    SciTech Connect (OSTI)

    Lemke, R.W.; DeMuth, G.E.; Biggs, A.W. (Sandia National Labs., Albuquerque, NM (USA); Air Force Weapons Lab., Kirtland AFB, NM (USA); Alabama Univ., Huntsville, AL (USA). Dept. of Electrical and Computer Engineering)

    1989-01-01T23:59:59.000Z

    The utility of the magnetically insulated transmission line oscillator (MILO) as a high power microwave source depends on how efficiently power can be extracted from it. We have designed a slow-wave stepped transformer for the purpose of axially extracting microwave power from a 3.6 GHz coaxial MILO. The slow-wave transformer design was optimized using particle-in-cell simulation, and tested in experiments performed on the HPM Simulation Division's GEMINI and GYPSY water Blumlein pulse power sources. In this paper we summarize the slow-wave stepped transformer design, and describe MILO axial power extraction experiments which yielded up to 300 MW of radiated power. 10 refs., 4 figs., 2 tabs.

  6. UNDERSTANDING METHANE EMISSIONS SOURCES AND VIABLE MITIGATION MEASURES IN THE NATURAL GAS TRANSMISSION SYSTEMS: RUSSIAN AND U.S. EXPERIENCE

    SciTech Connect (OSTI)

    Ishkov, A.; Akopova, Gretta; Evans, Meredydd; Yulkin, Grigory; Roshchanka, Volha; Waltzer, Suzie; Romanov, K.; Picard, David; Stepanenko, O.; Neretin, D.

    2011-10-01T23:59:59.000Z

    This article will compare the natural gas transmission systems in the U.S. and Russia and review experience with methane mitigation technologies in the two countries. Russia and the United States (U.S.) are the world's largest consumers and producers of natural gas, and consequently, have some of the largest natural gas infrastructure. This paper compares the natural gas transmission systems in Russia and the U.S., their methane emissions and experiences in implementing methane mitigation technologies. Given the scale of the two systems, many international oil and natural gas companies have expressed interest in better understanding the methane emission volumes and trends as well as the methane mitigation options. This paper compares the two transmission systems and documents experiences in Russia and the U.S. in implementing technologies and programs for methane mitigation. The systems are inherently different. For instance, while the U.S. natural gas transmission system is represented by many companies, which operate pipelines with various characteristics, in Russia predominately one company, Gazprom, operates the gas transmission system. However, companies in both countries found that reducing methane emissions can be feasible and profitable. Examples of technologies in use include replacing wet seals with dry seals, implementing Directed Inspection and Maintenance (DI&M) programs, performing pipeline pump-down, applying composite wrap for non-leaking pipeline defects and installing low-bleed pneumatics. The research methodology for this paper involved a review of information on methane emissions trends and mitigation measures, analytical and statistical data collection; accumulation and analysis of operational data on compressor seals and other emission sources; and analysis of technologies used in both countries to mitigate methane emissions in the transmission sector. Operators of natural gas transmission systems have many options to reduce natural gas losses. Depending on the value of gas, simple, low-cost measures, such as adjusting leaking equipment components, or larger-scale measures, such as installing dry seals on compressors, can be applied.

  7. Ringing in the pulse response of long and wideband coaxial transmission lines due to group delay dispersion

    SciTech Connect (OSTI)

    Kotzian,G.; de Maria,R.; Caspers, F.; Federmann, S.; Hofle, W.

    2009-05-04T23:59:59.000Z

    In particle accelerators coaxial cables are commonly used to transmit wideband beam signals covering many decades of frequencies over long distances. Those transmission lines often have a corrugated outer and/or inner conductor. This particular construction exhibits a significant amount of frequency dependent group delay variation. A comparison of simulations based on theoretical models, numerical simulations and S{sub 21} network analyzer measurements up to 2.5 GHz is presented. It is shown how the non-linear phase response and varying group delay leads to ringing in the pulse response and subsequent distortion of signal s transmitted through such coaxial transmission lines.

  8. Treatment of biodiversity issues in impact assessment of electricity power transmission lines: A Finnish case review

    SciTech Connect (OSTI)

    Soederman, Tarja [Senior Researcher, Lic. Phil., Finnish Environment Institute, Nature Division, P.O. Box 140, FIN-00251 Helsinki (Finland)]. E-mail: tarja.soderman@ymparisto.fi

    2006-05-15T23:59:59.000Z

    The Environmental Impact Assessment (EIA) process concerning the route of a 400 kV power transmission line between Loviisa and Hikiae in southern Finland was reviewed in order to assess how biodiversity issues are treated and to provide suggestions on how to improve the effectiveness of treatment of biodiversity issues in impact assessment of linear development projects. The review covered the whole assessment process, including interviews of stakeholders, participation in the interest group meetings and review of all documents from the project. The baseline studies and assessment of direct impacts in the case study were detailed but the documentation, both the assessment programme and the assessment report, only gave a partial picture of the assessment process. All existing information, baseline survey and assessment methods should be addressed in the scoping phase in order to promote interaction between all stakeholders. In contrast to the assessment of the direct effects, which first emphasized impacts on the nationally important and protected flying squirrel but later expanded to deal with the assessment of impacts on ecologically important sites, the indirect and cumulative impacts of the power line were poorly addressed. The public was given the opportunity to become involved in the EIA process. However, they were more concerned with impacts on their properties and less so on biodiversity and species protection issues. This suggests that the public needs to become more informed about locally important features of biodiversity.

  9. The U.S. Department of Energy is reopening the public scoping period for the Northern Pass Transmission Line Project Environmental Impact Statement (EIS).

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy is reopening the public scoping period for the Northern Pass Transmission Line Project Environmental Impact Statement (EIS).

  10. GAS EXCITATION IN ULIRGs: MAPS OF DIAGNOSTIC EMISSION-LINE RATIOS IN SPACE AND VELOCITY

    SciTech Connect (OSTI)

    Soto, Kurt T.; Martin, Crystal L. [Physics Department, University of California, Santa Barbara, CA 93106-9530 (United States)

    2012-11-15T23:59:59.000Z

    Emission-line spectra extracted at multiple locations across 39 ultraluminous infrared galaxies have been compiled into a spectrophotometric atlas. Line profiles of H{alpha}, [N II], [S II], [O I], H{beta}, and [O III] are resolved and fit jointly with common velocity components. Diagnostic ratios of these line fluxes are presented in a series of plots, showing how the Doppler shift, line width, gas excitation, and surface brightness change with velocity at fixed position and also with distance from the nucleus. One general characteristic of these spectra is the presence of shocked gas extending many kiloparsecs from the nucleus. In some systems, the rotation curves of the emitting gas indicate motions that suggest gas disks, which are most frequent at early merger stages. At these early merger stages, the emission line ratios indicate the presence of shocked gas, which may be triggered by the merger event. We also report the general characteristics of the integrated spectra.

  11. Number of lightning discharges causing damage to lightning arrester cables for aerial transmission lines in power systems

    SciTech Connect (OSTI)

    Nikiforov, E. P. [Electric Power Scientific Research Institute (VNIIE), branch of OAO 'NTTs Elektroenergetika' (Russian Federation)

    2009-07-15T23:59:59.000Z

    Damage by lightning discharges to lightning arrester cables for 110-175 kV aerial transmission lines is analyzed using data from power systems on incidents with aerial transmission lines over a ten year operating period (1997-2006). It is found that failures of lightning arrester cables occur when a tensile force acts on a cable heated to the melting point by a lightning current. The lightning currents required to heat a cable to this extent are greater for larger cable cross sections. The probability that a lightning discharge will develop decreases as the amplitude of the lightning current increases, which greatly reduces the number of lightning discharges which damage TK-70 cables compared to TK-50 cables. In order to increase the reliability of lightning arrester cables for 110 kV aerial transmission lines, TK-70 cables should be used in place of TK-50 cables. The number of lightning discharges per year which damage lightning arrester cables is lowered when the density of aerial transmission lines is reduced within the territory of electrical power systems. An approximate relationship between these two parameters is obtained.

  12. Announcement of Change in Public Meeting Location for the Northern Pass Transmission Line Project Published in the Federal Register

    Broader source: Energy.gov [DOE]

    The Department announces a change of location for the September 26, 2013 public scoping meeting for the Northern Pass Transmission Line Project to Colebrook Elementary School, 27 Dumont Street, Colebrook, NH. The meeting will be from 5 to 8 p.m.

  13. Achieving Near Zero SSN Power Delivery Networks by Eliminating Power Planes and Using Constant Current Power Transmission Lines

    E-Print Network [OSTI]

    Swaminathan, Madhavan

    of discontinuities such as a power plane split or multiple via holes. Even with a solid return current pathAchieving Near Zero SSN Power Delivery Networks by Eliminating Power Planes and Using Constant Current Power Transmission Lines Suzanne Huh, Daehyun Chung, and Madhavan Swaminathan Interconnect

  14. EA-1629: Herbicide Application within Transmission Line Rights-of-Way in the Ozark-St. Francis National Forest, Arkansas

    Broader source: Energy.gov [DOE]

    The Department of the Interior, U.S. Forest Service, with DOE’s Southwestern Area Power Administration as a cooperating agency, is preparing this EA to evaluate the environmental impacts of applying herbicide within transmission line rights-of-way in the Ozark-St. Francis National Forest in Arkansas. NOTE: SWPA's involvement in this EA has ended.

  15. OE Issues Notice of Intent to Prepare an Environmental Impact Statement for the Plains & Eastern Clean Line Transmission Project

    Broader source: Energy.gov [DOE]

    On December 21, 2012, DOE’s Office of Electricity Delivery and Energy Reliability (OE) issued a Notice of Intent (NOI) to Prepare an Environmental Impact Statement (EIS) for the Plains & Eastern Clean Line Transmission Project on behalf of the Department and Southwestern Power Administration

  16. Model documentation Natural Gas Transmission and Distribution Model of the National Energy Modeling System. Volume 1

    SciTech Connect (OSTI)

    NONE

    1996-02-26T23:59:59.000Z

    The Natural Gas Transmission and Distribution Model (NGTDM) of the National Energy Modeling System is developed and maintained by the Energy Information Administration (EIA), Office of Integrated Analysis and Forecasting. This report documents the archived version of the NGTDM that was used to produce the natural gas forecasts presented in the Annual Energy Outlook 1996, (DOE/EIA-0383(96)). The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic approach, and provides detail on the methodology employed. Previously this report represented Volume I of a two-volume set. Volume II reported on model performance, detailing convergence criteria and properties, results of sensitivity testing, comparison of model outputs with the literature and/or other model results, and major unresolved issues.

  17. Process for dissolving coke oven deposits comprising atomizing a composition containing N-methyl-2-pyrrolidone into the gas lines

    SciTech Connect (OSTI)

    Stafford, M.L.; Nicholson, G.M.

    1993-07-06T23:59:59.000Z

    A method is described for cleaning gas lines in coke oven batteries comprising atomizing a composition into the gas lines of coke oven batteries, where the composition comprises N-methyl-2-pyrrolidone.

  18. Model documentation: Natural Gas Transmission and Distribution Model of the National Energy Modeling System; Volume 1

    SciTech Connect (OSTI)

    NONE

    1994-02-24T23:59:59.000Z

    The Natural Gas Transmission and Distribution Model (NGTDM) is a component of the National Energy Modeling System (NEMS) used to represent the domestic natural gas transmission and distribution system. NEMS is the third in a series of computer-based, midterm energy modeling systems used since 1974 by the Energy Information Administration (EIA) and its predecessor, the Federal Energy Administration, to analyze domestic energy-economy markets and develop projections. This report documents the archived version of NGTDM that was used to produce the natural gas forecasts used in support of the Annual Energy Outlook 1994, DOE/EIA-0383(94). The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic design, provides detail on the methodology employed, and describes the model inputs, outputs, and key assumptions. It is intended to fulfill the legal obligation of the EIA to provide adequate documentation in support of its models (Public Law 94-385, Section 57.b.2). This report represents Volume 1 of a two-volume set. (Volume 2 will report on model performance, detailing convergence criteria and properties, results of sensitivity testing, comparison of model outputs with the literature and/or other model results, and major unresolved issues.) Subsequent chapters of this report provide: (1) an overview of the NGTDM (Chapter 2); (2) a description of the interface between the National Energy Modeling System (NEMS) and the NGTDM (Chapter 3); (3) an overview of the solution methodology of the NGTDM (Chapter 4); (4) the solution methodology for the Annual Flow Module (Chapter 5); (5) the solution methodology for the Distributor Tariff Module (Chapter 6); (6) the solution methodology for the Capacity Expansion Module (Chapter 7); (7) the solution methodology for the Pipeline Tariff Module (Chapter 8); and (8) a description of model assumptions, inputs, and outputs (Chapter 9).

  19. Detecting internal corrosion of natural gas transmission pipelines: field tests of probes and systems for real-time corrosion measurement

    SciTech Connect (OSTI)

    Covino, Bernard S., Jr.; Bullard, Sophie J.; Cramer, Stephen D.; Holcomb, Gordon R.; Ziomek-Moroz, M.; Kane, R.D. (InterCorr International); Meidinger, B. (Rocky Mountain Oilfield Testing Center)

    2005-01-01T23:59:59.000Z

    A field study was conducted to evaluate the use of automated, multi-technique electrochemical corrosion-rate monitoring devices and probes for detecting corrosion in environments similar to those found in natural gas transmission pipelines. It involved measurement of real-time corrosion signals from operating pipelines. Results and interpretation were reported from four different field test locations. Standard flush-mount and custom flange probes were used in four different environments at a gas-gathering site and one environment but two different probe orientations at a natural gas site. These sites were selected to represent normal and upset conditions common in gas transmission pipelines. The environments consisted of two different levels of humidified natural gas, liquid hydrocarbon, and water from natural gas. Probe locations included the 6 and 12 o?clock positions of a natural gas pipeline carrying 2-phase gas/liquid flow. The probe data was monitored using completely remote solar powered systems that provided real-time data transmission via wireless back to a pipeline control station. Data are also presented comparing the ECR probe data to that for coupons used to determine corrosion rate and to detect the presence of microbiologically influenced corrosion (MIC).

  20. A long-pulse repetitive operation magnetically insulated transmission line oscillator

    SciTech Connect (OSTI)

    Fan, Yu-Wei; Zhong, Hui-Huang; Zhang, Jian-De; Shu, Ting; Liu, Jin Liang [College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha 410073 (China)

    2014-05-15T23:59:59.000Z

    The improved magnetically insulated transmission line oscillator (MILO) is a gigawatt-class L-band high power microwave tube. It has allowed us to generate 3.1 GW pulse of 40 ns duration in the single-pulse operation and 500 MW pulse of 25 ns duration in the repetition rate operation. However, because of the severe impedance mismatch, the power conversion efficiency is only about 4% in the repetition rate operation. In order to eliminate the impedance mismatch and obtain repetitive long-pulse high-power microwave (HPM), a series of experiments are carried out and the recent progress is presented in this paper. In the single-pulse operation, when the diode voltage is 466 kV and current is 41.6 kA, the radiated microwave power is above 2.2 GW, the pulse duration is above 102 ns, the microwave frequency is about 1.74 GHz, and the power conversion efficiency is about 11.5%. In the repetition rate operation, under the condition of the diode voltage about 400 kV, beam current about 38 kA, the radiated microwave power is about 1.0 GW, the pulse duration is about 85 ns. Moreover, the radiated microwave power and the pulse duration decline little by little when the shot numbers increase gradually. The experimental results show that the impedance matching is a vital factor for HPM systems and one of the major technical challenges is to improve the cathode for the repetition rate operation MILO.

  1. Recyclable transmission line concept for z-pinch driven inertial fusion energy.

    SciTech Connect (OSTI)

    De Groot, J. S. (University of California, Davis, CA); Olson, Craig Lee; Cochrane, Kyle Robert (Ktech Corporation, Albuquerque, NM); Slutz, Stephen A.; Vesey, Roger Alan; Peterson, Per F. (University of California, Berkeley, CA)

    2003-12-01T23:59:59.000Z

    Recyclable transmission lines (RTL)s are being studied as a means to repetitively drive z pinches to generate fusion energy. We have shown previously that the RTL mass can be quite modest. Minimizing the RTL mass reduces recycling costs and the impulse delivered to the first wall of a fusion chamber. Despite this reduction in mass, a few seconds will be needed to reload an RTL after each subsequent shot. This is in comparison to other inertial fusion approaches that expect to fire up to ten capsules per second. Thus a larger fusion yield is needed to compensate for the slower repetition rate in a z-pinch driven fusion reactor. We present preliminary designs of z-pinch driven fusion capsules that provide an adequate yield of 1-4 GJ. We also present numerical simulations of the effect of these fairly large fusion yields on the RTL and the first wall of the reactor chamber. These simulations were performed with and without a neutron absorbing blanket surrounding the fusion explosion. We find that the RTL will be fully vaporized out to a radius of about 3 meters assuming normal incidence. However, at large enough radius the RTL will remain in either the liquid or solid state and this portion of the RTL could fragment and become shrapnel. We show that a dynamic fragmentation theory can be used to estimate the size of these fragmented particles. We discuss how proper design of the RTL can allow this shrapnel to be directed away from the sensitive mechanical parts of the reactor chamber.

  2. Incentives for Methane Mitigation and Energy-Efficiency Improvements in Case of Ukraine’s Natural Gas Transmission System

    SciTech Connect (OSTI)

    Roshchanka, Volha; Evans, Meredydd

    2014-06-01T23:59:59.000Z

    Reducing methane losses is a concern for climate change policy and energy policy. The energy sector is the major source of methane emissions into the atmosphere. Reducing methane emissions and avoiding combustion can be very cost-effective, but various barriers prevent such energy-efficiency measures from taking place. To date, few examples of industry-wide improvements exist. One example of substantial investments into upgrading natural gas transmission system comes from Ukraine. The Ukrainian transmission company, Ukrtransgaz, reduced its own system’s natural gas consumption by 68 percent in 2011 compared to the level in 2005. Evaluating reductions in methane emissions is challenging because of lack of accurate data and gaps in accounting methodologies. At the same time, Ukraine’s transmission system has undergone improvements that, at the very least, have contained methane emissions, if not substantially reduced them. In this paper, we describe recent developments in Ukraine’s natural gas transmission system and analyze the incentives that forced the sector to pay close attention to its methane losses. Ukraine is one of most energy-intensive countries, among the largest natural gas consumers in the world, and a significant emitter of methane. The country is also dependent on imports of natural gas. A combination of steep increases in the price of imported natural gas, and comprehensive domestic environmental and energy policies, regional integration policy, and international environmental agreements has created conditions for successful methane emission and combustion reductions. Learning about such case studies can help us design better policies elsewhere.

  3. Supplement Analysis for the Transmission System Vegetation Management Program FEIS (DOE/EIS-0285/SA-5) - Big Eddy-Ostrander Transmission Line

    SciTech Connect (OSTI)

    N /A

    2001-03-30T23:59:59.000Z

    BPA proposes to clear unwanted vegetation from the rights of way and access roads for BPA's Big Eddy-Ostrander Transmission Line, beginning April and ending in May, 2001. A Checklist was completed for this project in accordance to the requirements identified in the Bonneville Power Administrations Transmission System Vegetation Management Program FEIS (DOE/EIS-0285). The Checklist evaluated the following areas: (1) Description of right-of-way and vegetation management needed; (2) Vegetation to be controlled; (3) Surrounding land use and landowner; (4) Natural Resource; (5) Vegetation control methods; (6) Debris disposal; (7) Monitoring; and (8) Appropriate environmental documentation. In preparation of this Supplement Analysis, the Checklist was reviewed. Specific information regarding the areas as identified above are described the attached checklist. This Supplement Analysis finds that: (1) the proposed actions are substantially consistent with the Transmission System Vegetation Management Program FEIS (DOE/EIS0285) and ROD; and (2) there are no new circumstances or information relevant to environmental concerns and bearing on the proposed actions or their impacts. Therefore, no further NEPA documentation is required.

  4. EIS-0025: Miles City-New Underwood 230-kV Electrical Transmission Line, Montana, North Dakota, and South Dakota

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy’s Western Area Power Administration prepared this statement to assess the environmental and socioeconomic implications of its proposed action to construct a 3.28-mile, 230-kV transmission line between Miles City and Baker, Montana , Hettinger, North Dakota , and New Underwood , South Dakota , in Custer and Fallon Counties in Montana, Adams , Bowman , and Slope Counties in North Dakota and Meade, Pennington, and Perkins Counties in South Dakota.

  5. Seasonal Patterns of Melatonin, Cortisol, and Progesterone Secretion in Female Lambs Raised Beneath a 500-kV Transmission Line.

    SciTech Connect (OSTI)

    Lee, Jack M.

    1992-06-01T23:59:59.000Z

    Although several kinds of biological effects of electric and magnetic fields have been reported from laboratory studies, few have been independently replicated. When this study was being planned, the suppression of nighttime melatonin in rodents was thought to represent one of the strongest known effects of these fields. The effect had been replicated by a single laboratory for 60-Hz electric fields, and by multiple laboratories for d-c magnetic fields. The primary objective of this study was to determine whether the effect of electric and magnetic fields on melatonin would also occur in sheep exposed to a high voltage transmission line. The specific hypothesis tested by this experiment was as follows: The electrical environment produced by a 60-Hz, 500-kV transmission line causes a depression in nocturnal melatonin in chronically exposed female lambs. This may mimic effects of pinealectomy or constant long-day photoperiods, thus delaying the onset of reproductive cycles. Results of the study do not provide evidence to support the hypothesis. Melatonin concentrations in the sheep exposed to the transmission line showed the normal pattern of low daytime and high nighttime serum levels. As compared to the control group, there were no statistically significant group differences in the mean amplitude, phase, or duration of the nighttime melatonin elevation.

  6. Ultraviolet Diagnostics for the Emission Line Gas in Active Galaxies

    E-Print Network [OSTI]

    M. G. Allen; M. A. Dopita; Z. I. Tsvetanov

    1998-01-06T23:59:59.000Z

    Optical diagnostic diagrams are frequently ambiguous as a test of the photoionization or fast shock models of the narrow line regions of active galaxies. Here, we present a set of UV line ratio diagrams which can discriminate between pure shock and photoionization modes of excitation, and to some extent, also discriminate shocks with ionized precursors from photoionization. These diagrams use relatively bright emission lines and reddening insensitive ratios and provide a practical observational test for separating the excitation mechanisms of the narrow line regions of active galaxies. The most useful diagrams are those involving the various ionization stages of Carbon, [OIII]5007/H-beta vs. CIV 1550/ HeII 1640 and the purely UV ratio pair CII] 2326 / CIII] 1909 vs. CIV 1550 / CIII]909. Temperature sensitive FUV lines CIII 977 and NIII 991 also provide good discriminants. The models are compared to observations of nearby AGN, and also to high redshift objects where the UV lines are shifted into the optical.

  7. Study of Compact Tunable Filters Using Negative Refractive Index Transmission Lines

    E-Print Network [OSTI]

    Lewis, Brian Patrick

    2011-08-08T23:59:59.000Z

    , and thermal requirements, new filter technologies with different balances between these requirements are always desirable. Negative Refractive Index (NRI) transmission media was discovered 10 years ago with the unique property of negative phase propagation...

  8. EIS-0011: New Melones 230-kV Electrical Transmission Line, Central Valley Project, California

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy's Western Area Power Administration prepared this statement to evaluate the environmental impacts of proposed development of an electrical transmission system for the New Melones Power Plant.

  9. Development of NS-TACSR with extremely suppressed aeolian noise and its application to 500 kV overhead transmission lines

    SciTech Connect (OSTI)

    Tsujimoto, K.; Furukawa, S. (Kansai Electric Power Co., Inc., Osaka (Japan)); Shimojima, K.; Yamamoto, K. (Hitachi Cable, Ltd., Hitachi (JP))

    1991-10-01T23:59:59.000Z

    Recently in Japan, with the unprecedented advance of residential area development in the suburbs of large cities, it has become quite difficult to secure the routes of EHV transmission lines from nuclear power plants in remote places to the suburbs of large cities, urging resolution of environmental problems related to transmission lines. In Japan, aerodynamic sound produced by conductors and insulators frequently caused noise problems. Having an opportunity of constructing a 500 kV transmission line through a residential are, we made a research to resolve this noise problem. This paper describes the characteristics of aeolian noise and preventive measures against it.

  10. US gas line contract carriage on the rise

    SciTech Connect (OSTI)

    Not Available

    1992-05-18T23:59:59.000Z

    This paper reports that the Interstate Natural Gas Association of America reports contract carriage moved 84% of the gas delivered to U.S. markets in 1991, up from 79% the previous year. Carriage for market transportation for distributors, end users, and marketers totaled 15.2 quadrillion BTU, a 13% increase from the 13.4 quads reported at the end of 1990. Ingaa the growth in carriage volumes has slowed. This year's 13% increase is lower than the 28% growth in carriage volumes from 1988 to 1989 and the 72% from 1986 to 1987. Total natural gas delivered to market was 18 quads in 1991, an increase of 5% from the 1990 level of 17.1 quads. Pipeline sales accounted for only 16% of the gas delivered to market in 1991. They dropped 0.8 quads, or 22%, from 1990 levels. Ingaa the while the market relies heavily on carriage throughout the year, reliance on carriage is somewhat heavier as has been the case since 1986 during the off peak season in April-September.

  11. Abstract -In this paper, new formulations for the energy dissipation of lossy transmission lines driven by CMOS inverters are provided, and a new performance metric for the energy optimization under the delay

    E-Print Network [OSTI]

    Pedram, Massoud

    Abstract - In this paper, new formulations for the energy dissipation of lossy transmission lines for the driving-point impedance of lossy coupled transmission lines which itself is derived by solving Telegra stable circuits that are capable of modeling the transmission line for a broad range of frequencies

  12. Bonus bidding and bottom lines: Federal offshore oil and gas

    SciTech Connect (OSTI)

    Lohrenz, J.; Dougherty, E.L.

    1983-10-01T23:59:59.000Z

    Much can be observed in the statistics of bonus bids. For one thing, more information about a lease may not mean bidders agree more with their bids. However, whether any or all bidders are achieving satisfactory results at their bottom lines cannot be observed from bid statistics. Indeed, it does appear that bidders' results are not satisfactory. Furthermore, an aggressive bidder who ''wins'' at bidding time appears, in this study, less profitable than a conservative bodder.

  13. EIS-0365: Draft Environmental Impact Statement for the Imperial-Mexicali 230-kV Transmission Lines, EIS-0365 (May 2004)

    Broader source: Energy.gov [DOE]

    A U.S. Department of Energy (DOE) Presidential permit is required to construct an electric transmission line across the U.S. international border. On February 27, 2001, Baja California Power, Inc. ...

  14. EIS-0032: 500 kV International Transmission Line NSP-TR-1, Forbes, Minnesota to Manitoba, Canada, Northern States Power Company

    Broader source: Energy.gov [DOE]

    The Economic Regulatory Administration developed this EIS to evaluate the environmental impacts of a 500-kilovolt transmission line proposed by the Northern States Power Company to provide a transmission facility for the exchange of electrical energy between Canada and the United States.

  15. EA-1617: Lovell-Yellowtail and Basin-Lovell Transmission Line Rebuild Project, Big Horn County, Wyoming, and Big Horn and Carbon Counties, Montana

    Broader source: Energy.gov [DOE]

    DOE’s Western Area Power Administration prepared this EA and a finding of no significant impact for a proposal to rebuild the Lovell-Yellowtail (LV-YT) No. 1 and No. 2 115-kV transmission lines, located in Big Horn County, Wyoming, and Big Horn and Carbon Counties in Montana, and the Basin-Lovell 115-kV transmission line in Big Horn County, Wyoming.

  16. INCREASED FLEXIBILITY OF TURBO-COMPRESSORS IN NATURAL GAS TRANSMISSION THROUGH DIRECT SURGE CONTROL

    SciTech Connect (OSTI)

    Robert J. McKee

    2003-05-01T23:59:59.000Z

    This preliminary phase 1 report summarizes the background and the work on the ''Increased Flexibility of Turbo-Compressors in Natural Gas Transmission through Direct Surge Control'' project to date. The importance of centrifugal compressors for natural gas transmission is discussed, and the causes of surge and the consequences of current surge control approaches are explained. Previous technology development, including findings from early GMRC research, previous surge detection work, and selected publications, are presented. The project is divided into three Phases to accomplish the project objectives of verifying near surge sensing, developing a prototype surge control system (sensor and controller), and testing/demonstrating the benefits of direct surge control. Specification for the direct surge control sensor and controller developed with guidance from the industry Oversight Committee is presented in detail. Results of CFD modeling conducted to aid in interpreting the laboratory test results are shown and explained. An analysis of the system dynamics identified the data sampling and handling requirements for direct surge control. A detailed design process for surge detection probes has been developed and explained in this report and has been used to prepare drag probes for the laboratory compressor test and the first field test. The surge detection probes prepared for testing have been bench tested and flow tested to determine and calibrate their sensitivity to flow forces as shown in data presented in this report. The surge detection drag probes have been shown to perform as expected and as required to detect approaching surge. Laboratory test results of surge detection in the SwRI centrifugal compressor demonstrated functionality of the surge detection probes and a change in the impeller inlet flow pattern prior to surge. Although the recirculation cannot be detected because of the specific geometry of this compressor, there are changes that indicate the approach of surge that can be detected. Preparations for a field test had been completed at one point in the project. However, a failure of the surge probe wiring just inside the compressor case has caused a delay in the field testing. Repairs for the wiring in the compressor have been scheduled and the field test will take place shortly after the repairs.

  17. Flexible Transmission in the Smart Grid

    E-Print Network [OSTI]

    Hedman, Kory Walter

    2010-01-01T23:59:59.000Z

    Planning . 102 vi Transmission Line Maintenance Scheduling 103 Just-in-time Transmission 103 Flexible Transmission in the Smart Grid

  18. EIS-0100: Liberty-Coolidge 230-kV Transmission Line, Arizona

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy’s Western Area Power Administration prepared this statement to assess the potential environmental and socioeconomic implications of various alternatives associated with an upgrade of electrical transmission capability between the Liberty and Coolidge Substations.

  19. EIS-0129: New England/Hydro-Quebec 450 kV Transmission Line Interconnection- Phase II

    Broader source: Energy.gov [DOE]

    The Economic Regulatory Administration issued this EIS to explore the impacts of amending Presidential Permit PP-76 to allow the Vermont Electrical Company to operate at power levels above those stipulated in the permit and to build additional transmission facilities to distribute the increased power.

  20. A gas-jet transport and catcher technique for on-line production of radioactive ion beams using an electron cyclotron resonance ion-source

    SciTech Connect (OSTI)

    Naik, V.; Chakrabarti, A.; Bhattacharjee, M.; Karmakar, P.; Bandyopadhyay, A.; Dechoudhury, S.; Mondal, M.; Pandey, H. K.; Lavanyakumar, D.; Mandi, T. K.; Dutta, D. P.; Kundu Roy, T.; Bhowmick, D.; Sanyal, D.; Srivastava, S. C. L.; Ray, A.; Ali, Md. S. [Variable Energy Cyclotron Centre (VECC), Sector-1, Block-AF, Bidhan Nagar, Kolkata 700064 (India); Bhattacharjee, S. [UGC-DAE CSR, Kolkata Centre, III/LB-8, Bidhan Nagar, Kolkata 700098 (India)

    2013-03-15T23:59:59.000Z

    Radioactive ion beams (RIB) have been produced on-line, using a gas-jet recoil transport coupled Electron Cyclotron Resonance (ECR) ion-source at the VECC-RIB facility. Radioactive atoms/molecules carried through the gas-jet were stopped in a catcher placed inside the ECR plasma chamber. A skimmer has been used to remove bulk of the carrier gas at the ECR entrance. The diffusion of atoms/molecules through the catcher has been verified off-line using stable isotopes and on-line through transmission of radioactive reaction products. Beams of {sup 14}O (71 s), {sup 42}K (12.4 h), {sup 43}K (22.2 h), and {sup 41}Ar (1.8 h) have been produced by bombarding nitrogen and argon gas targets with proton and alpha particle beams from the K130 cyclotron at VECC. Typical measured intensity of RIB at the separator focal plane is found to be a few times 10{sup 3} particles per second (pps). About 3.2 Multiplication-Sign 10{sup 3} pps of 1.4 MeV {sup 14}O RIB has been measured after acceleration through a radiofrequency quadrupole linac. The details of the gas-jet coupled ECR ion-source and RIB production experiments are presented along with the plans for the future.

  1. Proposed statistical performance measures for microprocessor-based transmission-line protective relays. Part 1: Explanation of the statistics

    SciTech Connect (OSTI)

    NONE

    1997-01-01T23:59:59.000Z

    The paper presents practical calculations and novel techniques for collecting performance data from protective relays. The methods are focused on, but not limited to, microprocessor-based transmission line relaying systems. Standard definitions are presented for Availability, Dependability, Security, Hardware MTBF, Relaying MTBF, Repair Time, and other measures of interest for specific relay types. The paper explains the novel concept of Exposures, the key to a standardized security measure. A companion paper, Part 2--Collection and Uses of Data, gives practical guidelines for gathering and calculation of results. With these standard measures, relay users will be able to compile the first consistent industry-wide data base for relay performance assessment.

  2. Influence of the airflow speed along transmission lines on the DC corona discharge loss, using finite element approach

    SciTech Connect (OSTI)

    Shemshadi, A.; Akbari, A. [Electric Department, K. N. Toosi University of Technology, Tehran (Iran, Islamic Republic of); Niayesh, K. [Electric Engineering Department, Tehran University, Tehran (Iran, Islamic Republic of)

    2012-07-15T23:59:59.000Z

    Corona discharge is of great interest from the physical point of view and due to its numerous practical applications in industry and especially one of the most important sources of loss in the high voltage transmission lines. This paper provides guidelines for the amount of electric loss caused by corona phenomenon occurred around a DC high voltage wire placed between two flat plates and influence of wind speed rate on the amount of corona loss using COMSOL Multiphysics. So electric potential distribution patterns and charge density diffusion around the wire are studied in this article.

  3. INCREASED FLEXIBILITY OF TURBO-COMPRESSORS IN NATURAL GAS TRANSMISSION THROUGH DIRECT SURGE CONTROL

    SciTech Connect (OSTI)

    Robert J. McKee; Shane P. Siebenaler; Danny M. Deffenbaugh

    2005-02-25T23:59:59.000Z

    The objective of this Direct Surge Control project was to develop a new internal method to avoid surge of pipeline compressors. This method will safely expand the range and flexibility of compressor operations, while minimizing wasteful recycle flow at the lower end of the operating envelope. The approach is to sense the onset of surge with a probe that directly measures re-circulation at the impeller inlet. The signals from the probe are used by a controller to allow operation at low flow conditions without resorting to a predictive method requiring excessive margin to activate a recycle valve. The sensor developed and demonstrated during this project was a simple, rugged, and sensitive drag probe. Experiments conducted in a laboratory compressor clearly showed the effectiveness of the technique. Subsequent field demonstrations indicated that the increase in range without the need to recycle flow was on the order of 19% to 25%. The cost benefit of applying the direct surge control technology appears to be as much as $120 per hour per compressor for operation without the current level of recycle flow. This could amount to approximately $85 million per year for the U.S. Natural Gas Transmission industry, if direct surge control systems are applied to most pipeline centrifugal compressors.

  4. EIS-0159: Flatiron-Erie 115-kV Transmission Line

    Broader source: Energy.gov [DOE]

    "The Western Area Power Administration proposes to build 27 new wood H-frame structures along the line, to replace or modify 45 of the existing structures and to remove 11 of them."

  5. DOE/EA-1342: Shelton-Kitsap Transmission Line Rebuild Final Environmen...

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

    document request line: 800-622-4520. It is also available at the BPA, Environment, Fish & Wildlife website: www.efw.bpa.gov. For Further Information, Contact: Dawn R. Boorse -...

  6. 30-MJ superconducting magnetic energy storage for BPA transmission-line stabilizer

    SciTech Connect (OSTI)

    Schermer, R.I.

    1981-01-01T23:59:59.000Z

    The Bonneville Power Administration operates the transmission system that joins the Pacific Northwest and southern California. A 30 MJ (8.4 kWh) superconducting Magnetic Energy Storage (SMES) unit with a 10 MW converter can provide system damping for low frequency oscillations. The unit is scheduled to operate in late 1982. Progress to date is described. The coil is complete. All major components of the electrical and cryogenic systems have been received and testing has begun. Computer control hardware is in place and software development is proceeding. Support system components and dewar lid are being fabricated and foundation design is complete. A contract for dewar fabrication is being negotiated.

  7. 30-MJ superconducting magnetic-energy storage for BPA transmission-line stabilizer

    SciTech Connect (OSTI)

    Schermer, R.I.

    1981-01-01T23:59:59.000Z

    The Bonneville Power Administration operates the transmission system that joins the Pacific Northwest and southern California. A 30 MJ (8.4 kWh) Superconducting Magnetic Energy Storage (SMES) unit with a 10 MW converter can provide system damping for low frequency oscillations. The unit is scheduled to operate in 1982. Progress during FY 81 is described. The coil is complete. All major components of the electrical and cryogenic systems have been received and testing has begun. Computer control hardware is in place and software development is proceeding. Support system components and dewar lid are being fabricated and foundation design is complete. A contract for dewar fabrication is being negotiated.

  8. Non-transposed, three phase transmission lines: a study of their effect on load voltages.

    E-Print Network [OSTI]

    Chenoweth, Robert Dean

    1951-01-01T23:59:59.000Z

    by straightforward circuit analysis. This method is shown in the Westinghouse Transmission and Distribution Refer- ence Book and by Von Voightlander . The second method is to set the problem up by the use of symmetrical com- ponents and then solve... + Is ZosL + Io Zooi, 11L s lsI + 0 10L (28) BIBL10GRAPHY 1 Glar ke ~ Edi thy Circui t Ana lys i s of A-C Power Systems p Vol, I. First Edition, 19/7, New Yorkt John Wiley and Sons, Inc. 2. Westinghouse Electric Corporation, Electrical Trans...

  9. Cameron to Milford-138kV Transmission Line | 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:EzfeedflagBiomassSustainableCSL GasPermits Manual Jump to:(RECP) inCounty, Texas:Cameron to

  10. EA-1952: Lane-Wendson No. 1 Transmission Line Rebuild Project; Lane County,

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

    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 742Energy China U.S.ContaminationJuly 2011DDelphiFEA-2013.pdfBased onFinalLine, Benton and

  11. EA-1961: Kalispell-Kerr Transmission Line Rebuild Project, Kalispell and

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

    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 742Energy China U.S.ContaminationJuly 2011DDelphiFEA-2013.pdfBased onFinalLine,DOEPolson, Montana |

  12. Emission Lines from the Gas Disk around TW Hydra and the Origin of the Inner Hole

    E-Print Network [OSTI]

    Gorti, Uma; Najita, Joan; Pascucci, Ilaria

    2011-01-01T23:59:59.000Z

    We compare line emission calculated from theoretical disk models with optical to sub-millimeter wavelength observational data of the gas disk surrounding TW Hya and infer the spatial distribution of mass in the gas disk. The model disk that best matches observations has a gas mass ranging from $\\sim10^{-4}-10^{-5}$\\ms\\ for $0.06{\\rm AU} 13.6$eV) flux from TW Hya. H$_2$ pure rotational line emission comes primarily from $r\\sim 1-30$AU. [OI]63$\\mu$m, HCO$^+$ and CO pure rotational lines all arise from the outer disk at $r\\sim30-120$AU. We discuss planet formation and photoevaporation as causes for the decrease in surface density of gas and dust inside 4 AU. If a planet is present, our results suggest a planet mass $\\sim 4-7$M$_J$ situated at $\\sim 3$AU. Using our photoevaporation models and the best surface density profile match to observations, we estimate a current photoevaporative mass loss rate of $4\\times10^{-9}$\\ms\\ yr$^{-1}$ and a remaining disk lifetime of $\\sim 5$ million years.

  13. Research and Design of a Sample Heater for Beam Line 6-2c Transmission X-ray Microscope

    SciTech Connect (OSTI)

    Policht, Veronica; /Loyola U., Chicago /SLAC

    2012-08-27T23:59:59.000Z

    There exists a need for environmental control of samples to be imaged by the Transmission X-Ray Microscope (TXM) at the SSRLs Beam Line 6-2c. In order to observe heat-driven chemical or morphological changes that normally occur in situ, microscopes require an additional component that effectively heats a given sample without heating any of the microscope elements. The confinement of the heat and other concerns about the heaters integrity limit which type of heater is appropriate for the TXM. The bulk of this research project entails researching different heating methods used previously in microscopes, but also in other industrial applications, with the goal of determining the best-fitting method, and finally in designing a preliminary sample heater.

  14. Proposal of a gigawatt-class L/Ku dual-band magnetically insulated transmission line oscillator

    SciTech Connect (OSTI)

    Ju, J.-C., E-mail: jujinchuan@126.com; Fan, Y.-W.; Shu, T.; Zhong, H.-H. [College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073 (China)

    2014-10-15T23:59:59.000Z

    We present a gigawatt (GW)-class magnetically insulated transmission line oscillator (MILO) which is capable of generating dual-band high power microwaves (HPMs). The proposed device, deriving from previously studied complex MILO and dual-frequency MILO, is designed to produce two HPMs in L-band and Ku-band, respectively. It is found in particle-in-cell (PIC) simulation that when the diode voltage is 610?kV, HPMs with frequencies of 1.72 GHz and 14.6?GHz can be achieved with powers of 3.3?GW and 2.4?GW, respectively. The corresponding total power conversion efficiency is approximately 12.8%. Power difference of the two generated HPMs is approximately 1.4?dB, and frequency difference of them reaches a level as high as ?10?dB.

  15. Kinematic Linkage Between the Broad and Narrow Line Emitting Gas in AGN

    E-Print Network [OSTI]

    R. Zamanov; P. Marziani; J. W. Sulentic; M. Calvani; D. Dultzin-Hacyan; R. Bachev

    2002-07-18T23:59:59.000Z

    We investigate the radial velocity difference between the [OIII]5007,4959 and H-beta lines for a sample of 200 low redshift AGN. We identify seven objects showing an [OIII]5007 blueshift relative to H-beta with amplitude larger than 250 km/s (blue "outliers"). These line shifts are found in sources where the broad high ionization lines (e.g. CIV1549) also show a large systematic blueshift. Such blueshifts occur only in the population A region of the Eigenvector 1 parameter domain (that also contains NLSy1 sources). We suggest that [OIII] blueshifts are also associated with the high ionization outflow originating in these sources. This is a direct kinematic linkage between narrow and broad line emitting gas.

  16. Market Opportunities for Electric Drive Compressors for Gas Transmission, Storage, and Processing

    E-Print Network [OSTI]

    Parent, L. V.; Ralph, H. D.; Schmeal, W. R.

    for replacement of older gas engines and for new compressor installations. In ozone nonattainment regions, bringing gas compressor stations into compliance with NOx emission regulations is a must. Outside those regions, new electric drives are being considered...

  17. The Nature of Interstellar Gas toward the Pleiades Revealed in Absorption Lines

    E-Print Network [OSTI]

    A. M. Ritchey; M. Martinez; K. Pan; S. R. Federman; D. L. Lambert

    2006-06-27T23:59:59.000Z

    We present high-resolution, high signal to noise absorption-line observations of CN, Ca II, Ca I, CH^+, and CH along twenty lines of sight toward members of the Pleiades. The acquired data enable the most detailed study to date of the interaction between cluster stars and the surrounding interstellar gas. Total equivalent widths are consistent with previous investigations except where weaker features are detected owing to our greater sensitivity. Mean b-values for the molecular species indicate that toward most of the Pleiades CH is associated with the production of CH^+ rather than CN. An analysis of radial velocities reveals a kinematic distinction between ionized atomic gas and molecular and neutral gas. Molecular components are found with velocities in the local standard of rest of either ~ +7 km s^-1 or ~ +9.5 km s^-1, with the higher-velocity components associated with the strongest absorption. Atomic gas traced by Ca II shows a strong central component at v_LSR ~ +7 km s^-1 exhibiting velocity gradients indicative of cloud-cluster interactions. Gas density estimates derived from measured CH/CH^+ column density ratios show good agreement with those inferred from H_2 rotational populations, yielding typical values of n ~ 50 cm^-3. Our models do not include the important time-dependent effects on CH^+ formation which may ultimately be needed to extract physical conditions in these clouds.

  18. A CENSUS OF X-RAY GAS IN NGC 1068: RESULTS FROM 450 ks of CHANDRA HIGH ENERGY TRANSMISSION GRATING OBSERVATIONS

    E-Print Network [OSTI]

    Kallman, T.

    We present models for the X-ray spectrum of the Seyfert 2 galaxy NGC 1068. These are fitted to data obtained using the High Energy Transmission Grating on Chandra. The data show line and radiative recombination continuum ...

  19. El Paso Electric Company Diablo Substation to the US-Mexico border 115kV transmission line project. Final Environmental Assessment

    SciTech Connect (OSTI)

    Not Available

    1992-04-01T23:59:59.000Z

    This Environmental Assessment documents the analysis of alternative corridors for development and operation of a proposed 115 kilovolt transmission line using private lands and transporting power to the US-Mexico international border. The project will require (1) an amendment to El Paso Electric Company`s existing export authorization to transfer power across this border, and (2) a Presidential Permit for construction of the transmission line. The project would be located in Dona Ana county in southern New Mexico, approximately five miles west of El Paso, Texas. The alternative corridors, specific locations within those corridors, and structure types are identified and analyzed in the environmental studies.

  20. Survey of Magnetic Fields Near BPA 230-kV and 500-kV Transmission Lines.

    SciTech Connect (OSTI)

    Perrin, Nancy; Aggarwal, Rajinder Pal; Bracken, T. Daniel

    1991-05-20T23:59:59.000Z

    The purpose of this study was to characterize typical levels and variability of 60Hz magnetic fields at the centerline and edge of right-of-way of Bonneville Power Administration (BPA) 230-kV and 500-kV transmission lines. This was accomplished by taking magnetic field measurements at over 800 spans in Oregon and Washington. The spans were sampled using a stratified random sampling procedure with region (East vs. West), voltage (230-kV vs 500-kV), and circuit configuration as strata. There were five different circuit configuration groups for each region/voltage category requiring a total of 200 strata. Magnetic field measurements were taken at 13 locations under each span using an EMDEX-C as a survey meter. Additional information recorded for each span included conductor height (at 10 locations), right-of-way width, longitudinal and lateral slope, time of day, vegetation, terrain, weather conditions, temperature, wind speed, span length and presence of other lines in the corridor. 9 refs., 17 figs., 26 tabs.

  1. EA-1863: Vegetation Management on the Glen Canyon-Pinnacle Peak Transmission Lines Spanning the Coconino National Forest, Coconino County, Arizona

    Broader source: Energy.gov [DOE]

    DOE’s Western Area Power Administration is preparing this EA to evaluate the environmental impacts of updating the vegetation management and right-of-way maintenance program for Western’s Glen Canyon to Pinnacle Peak 345-kV transmission lines, which cross the Coconino National Forest, Coconino County, Arizona.

  2. Abstract -In this paper, new formulations for the energy dissipation of lossy transmission lines driven by CMOS inverters are provided, and a new

    E-Print Network [OSTI]

    Pedram, Massoud

    Abstract - In this paper, new formulations for the energy dissipation of lossy transmission lines driven by CMOS inverters are provided, and a new performance metric for the energy optimization under the delay constraint is proposed. The energy formulations are obtained by using approximated expressions

  3. EIS-0442: Reauthorization of Permits, Maintenance, and Vegetation Management on Western Area Power Administration Transmission Lines on Forest Service Lands, Colorado, Nebraska, and Utah

    Broader source: Energy.gov [DOE]

    This EIS is being prepared jointly by DOE’s Western Area Power Administration and the U.S. Forest Service. The EIS evaluates the potential environmental impacts of Western’s proposed changes to vegetation management along its transmission line rights-of-way on National Forest System lands in Colorado, Utah, and Nebraska.

  4. EA-2002: Right-of-Way Application for the Tucson-Apache 115-kV Transmission Line, Pima County, Arizona

    Broader source: Energy.gov [DOE]

    Western Area Power Administration (Western) and the Bureau of Indian Affairs (BIA), as joint lead agencies, prepared an EA that evaluates the potential environmental impacts of a proposal for BIA to grant Western a 150-foot right-of-way across tribal land along the existing Tucson-Apache Transmission Line to replace the previous 100-foot right-of-way, which has expired.

  5. Recyclable transmission line (RTL) and linear transformer driver (LTD) development for Z-pinch inertial fusion energy (Z-IFE) and high yield.

    SciTech Connect (OSTI)

    Sharpe, Robin Arthur; Kingsep, Alexander S. (Kurchatov Institute, Moscow, Russia); Smith, David Lewis; Olson, Craig Lee; Ottinger, Paul F. (Naval Research Laboratory, Washington, DC); Schumer, Joseph Wade (Naval Research Laboratory, Washington, DC); Welch, Dale Robert (Voss Scientific, Albuquerque, NM); Kim, Alexander (High Currents Institute, Tomsk, Russia); Kulcinski, Gerald L. (University of Wisconsin, Madison, WI); Kammer, Daniel C. (University of Wisconsin, Madison, WI); Rose, David Vincent (Voss Scientific, Albuquerque, NM); Nedoseev, Sergei L. (Kurchatov Institute, Moscow, Russia); Pointon, Timothy David; Smirnov, Valentin P. (Kurchatov Institute, Moscow, Russia); Turgeon, Matthew C.; Kalinin, Yuri G. (Kurchatov Institute, Moscow, Russia); Bruner, Nichelle "Nicki" (Voss Scientific, Albuquerque, NM); Barkey, Mark E. (University of Alabama, Tuscaloosa, AL); Guthrie, Michael (University of Wisconsin, Madison, WI); Thoma, Carsten (Voss Scientific, Albuquerque, NM); Genoni, Tom C. (Voss Scientific, Albuquerque, NM); Langston, William L.; Fowler, William E.; Mazarakis, Michael Gerrassimos

    2007-01-01T23:59:59.000Z

    Z-Pinch Inertial Fusion Energy (Z-IFE) complements and extends the single-shot z-pinch fusion program on Z to a repetitive, high-yield, power plant scenario that can be used for the production of electricity, transmutation of nuclear waste, and hydrogen production, all with no CO{sub 2} production and no long-lived radioactive nuclear waste. The Z-IFE concept uses a Linear Transformer Driver (LTD) accelerator, and a Recyclable Transmission Line (RTL) to connect the LTD driver to a high-yield fusion target inside a thick-liquid-wall power plant chamber. Results of RTL and LTD research are reported here, that include: (1) The key physics issues for RTLs involve the power flow at the high linear current densities that occur near the target (up to 5 MA/cm). These issues include surface heating, melting, ablation, plasma formation, electron flow, magnetic insulation, conductivity changes, magnetic field diffusion changes, possible ion flow, and RTL mass motion. These issues are studied theoretically, computationally (with the ALEGRA and LSP codes), and will work at 5 MA/cm or higher, with anode-cathode gaps as small as 2 mm. (2) An RTL misalignment sensitivity study has been performed using a 3D circuit model. Results show very small load current variations for significant RTL misalignments. (3) The key structural issues for RTLs involve optimizing the RTL strength (varying shape, ribs, etc.) while minimizing the RTL mass. Optimization studies show RTL mass reductions by factors of three or more. (4) Fabrication and pressure testing of Z-PoP (Proof-of-Principle) size RTLs are successfully reported here. (5) Modeling of the effect of initial RTL imperfections on the buckling pressure has been performed. Results show that the curved RTL offers a much greater buckling pressure as well as less sensitivity to imperfections than three other RTL designs. (6) Repetitive operation of a 0.5 MA, 100 kV, 100 ns, LTD cavity with gas purging between shots and automated operation is demonstrated at the SNL Z-IFE LTD laboratory with rep-rates up to 10.3 seconds between shots (this is essentially at the goal of 10 seconds for Z-IFE). (7) A single LTD switch at Tomsk was fired repetitively every 12 seconds for 36,000 shots with no failures. (8) Five 1.0 MA, 100 kV, 100 ns, LTD cavities have been combined into a voltage adder configuration with a test load to successfully study the system operation. (9) The combination of multiple LTD coaxial lines into a tri-plate transmission line is examined. The 3D Quicksilver code is used to study the electron flow losses produced near the magnetic nulls that occur where coax LTD lines are added together. (10) Circuit model codes are used to model the complete power flow circuit with an inductive isolator cavity. (11) LTD architectures are presented for drivers for Z-IFE and high yield. A 60 MA LTD driver and a 90 MA LTD driver are proposed. Present results from all of these power flow studies validate the whole LTD/RTL concept for single-shot ICF high yield, and for repetitive-shot IFE.

  6. Ten Years of Compressed Natural Gas (CNG) Operations at SunLine Transit Agency: April 2003--December 2004

    SciTech Connect (OSTI)

    Chandler, K.

    2006-01-01T23:59:59.000Z

    This report focuses on the lesson learned at the SunLine Transit Agency after it converted in 1994 its entire operating transit bus fleet to compressed natural gas (CNG).

  7. Using Natural Gas Transmission Pipeline Costs to Estimate Hydrogen Pipeline Costs

    E-Print Network [OSTI]

    Parker, Nathan

    2004-01-01T23:59:59.000Z

    Warren R. “U.S. interstate pipelines begin 1993 on upbeat. ”66. ? True, Warren R. “Current pipeline costs. ” Oil & GasWarren R. “U.S. interstate pipelines ran more efficiently in

  8. Cryogenic on-wafer microwave characterization of GaAs MESFETs and superconducting coplanar resonance and transmission lines structures

    SciTech Connect (OSTI)

    Kruse, J.; Schweinfurth, R.A.; Gao, F.; Scherrer, D.; Barlage, D.; Platt, C.E.; Van Harlingen, D.J.; Feng, M. [Univ. of Illinois, Urbana, IL (United States)

    1994-12-31T23:59:59.000Z

    This work directly compares coplanar superconducting transmission lines and single-pole resonators patterned from YBCO to aluminum structures for use in GaAs/YBCO hybrid circuitry. A cryogenic on-wafer station was used to make s-parameter measurements of passive coplanar circuits as well as to characterize the performance of GaAs MESFETs at 80K. Comparisons were made between measured data and theoretical results for passive YBCO and Aluminum structures. The YBCO film was also measured using a parallel plate technique to determine microwave surface resistance to establish a correlation between patterned film and thin film microwave properties. Small-signal models were constructed to accurately predict the operation of 0.25{mu}m gate length GaAs MESFETs at 80 K under a variety of bias conditions. The cutoff frequency and maximum frequency of operation of the GaAs MESFETs increased by 29% and 13% respectively under a drain-source voltage of 2.0 V (Id = 100%Idss) as the temperature was lowered from 300K to 80K.

  9. Commercial potential of natural gas storage in lined rock caverns (LRC)

    SciTech Connect (OSTI)

    NONE

    1999-11-01T23:59:59.000Z

    The geologic conditions in many regions of the United States will not permit the development of economical high-deliverability gas storage in salt caverns. These regions include the entire Eastern Seaboard; several northern states, notably Minnesota and Wisconsin; many of the Rocky Mountain States; and most of the Pacific Northwest. In late 1997, the United States Department of Energy (USDOE) Federal Energy Technology Center engaged Sofregaz US to investigate the commercialization potential of natural gas storage in Lined Rock Caverns (LRC). Sofregaz US teamed with Gaz de France and Sydkraft, who had formed a consortium, called LRC, to perform the study for the USDOE. Underground storage of natural gas is generally achieved in depleted oil and gas fields, aquifers, and solution-mined salt caverns. These storage technologies require specific geologic conditions. Unlined rock caverns have been used for decades to store hydrocarbons - mostly liquids such as crude oil, butane, and propane. The maximum operating pressure in unlined rock caverns is limited, since the host rock is never entirely impervious. The LRC technology allows a significant increase in the maximum operating pressure over the unlined storage cavern concept, since the gas in storage is completely contained with an impervious liner. The LRC technology has been under development in Sweden by Sydkraft since 1987. The development process has included extensive technical studies, laboratory testing, field tests, and most recently includes a storage facility being constructed in southern Sweden (Skallen). The LRC development effort has shown that the concept is technically and economically viable. The Skallen storage facility will have a rock cover of 115 meters (375 feet), a storage volume of 40,000 cubic meters (250,000 petroleum barrels), and a maximum operating pressure of 20 MPa (2,900 psi). There is a potential for commercialization of the LRC technology in the United States. Two regions were studied in some detail - the Northeast and the Southeast. The investment cost for an LRC facility in the Northeast is approximately $182 million and $343 million for a 2.6-billion cubic foot (bcf) working gas facility and a 5.2-bcf working gas storage facility, respectively. The relatively high investment cost is a strong function of the cost of labor in the Northeast. The labor union-related rules and requirements in the Northeast result in much higher underground construction costs than might result in Sweden, for example. The LRC technology gas storage service is compared to other alternative technologies. The LRC technology gas storage service was found to be competitive with other alternative technologies for a variety of market scenarios.

  10. Author's Copy: J.B. Bancroft, A. Morrison, G. Lachapelle, Validation of GNSS under 500,000 V Direct Current (DC) transmission lines, Computers and Electronics in Agriculture, Volume 83, April 2012, Pages 58-67, ISSN 0168-1699, 10.1016/j.compag.2012.01.013

    E-Print Network [OSTI]

    Calgary, University of

    masking by the towers. Tests were conducted under a set of three transmission lines, two 500 kV DC lines Current (DC) transmission lines, Computers and Electronics in Agriculture, Volume 83, April 2012, Pages 58 Validation of GNSS under 500,000 Volt Direct Current (DC) Transmission Lines J.B. Bancroft*, A. Morrison

  11. 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.

  12. EA-1899: Rerouting and Renovating of Estes-Flatiron Three Transmission Lines to Double Circuit 115-kV, Larimer County, Colorado

    Broader source: Energy.gov [DOE]

    DOE’s Western Area Power Administration started to prepare an EA to evaluate the environmental impacts of a proposal to reroute and renovate the Estes-Flatiron Three Transmission Lines in Larimer County, Colorado. Based on comments received during the scoping period, Western ended preparation of DOE/EA-1899 and announced its intent to prepare and environmental impact statement, DOE/EIS-0483.

  13. Gas cell for in situ soft X-ray transmission-absorption spectroscopy of

    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 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGasReleaseSpeechesHall ATours,Dioxide andNational

  14. Analysis of fission gas release kinetics by on-line mass spectrometry

    SciTech Connect (OSTI)

    Zerega, Y.; Reynard-Carette, C. [Univ. of Provence, Laboratoire Chimie Provence, UMR 6264, Avenue escadrille Normandie - Niemen, F-13397 Marseille (France); Parrat, D. [CEA, Nuclear Energy Div. DEN, CEA Cadarache, F-13108 Saint-Paul-lez-Durance (France); Carette, M. [Univ. of Provence, Laboratoire Chimie Provence, UMR 6264, Avenue escadrille Normandie - Niemen, F-13397 Marseille (France); Brkic, B. [Univ. of Liverpool, Dept. of Electrical Engineering and Electronics, Liverpool L69 3BX (United Kingdom); Lyoussi, A.; Bignan, G. [CEA, Nuclear Energy Div. DEN, CEA Cadarache, F-13108 Saint-Paul-lez-Durance (France); Janulyte, A.; Andre, J. [Univ. of Provence, Laboratoire Chimie Provence, UMR 6264, Avenue escadrille Normandie - Niemen, F-13397 Marseille (France); Pontillon, Y.; Ducros, G. [CEA, Nuclear Energy Div. DEN, CEA Cadarache, F-13108 Saint-Paul-lez-Durance (France); Taylor, S. [Univ. of Liverpool, Dept. of Electrical Engineering and Electronics, Liverpool L69 3BX (United Kingdom)

    2011-07-01T23:59:59.000Z

    The release of fission gas (Xe and Kr) and helium out of nuclear fuel materials in normal operation of a nuclear power reactor can constitute a strong limitation of the fuel lifetime. Moreover, radioactive isotopes of Xe and Kr contribute significantly to the global radiological source term released in the primary coolant circuit in case of accidental situations accompanied by fuel rod loss of integrity. As a consequence, fission gas release investigation is of prime importance for the nuclear fuel cycle economy, and is the driven force of numerous R and D programs. In this domain, for solving current fuel behavior understanding issues, preparing the development of new fuels (e.g. for Gen IV power systems) and for improving the modeling prediction capability, there is a marked need for innovations in the instrumentation field, mainly for: . Quantification of very low fission gas concentrations, released from fuel sample and routed in sweeping lines. Monitoring of quick gas release variations by quantification of elementary release during a short period of time. Detection of a large range of atomic masses (e.g. H{sub 2}, HT, He, CO, CO{sub 2}, Ne, Ar, Kr, Xe), together with a performing separation of isotopes for Xe and Kr elements. Coupling measurement of stable and radioactive gas isotopes, by using in parallel mass spectrometry and gamma spectrometry techniques. To fulfill these challenging needs, a common strategy for analysis equipment implementation has been set up thanks to a recently launched collaboration between the CEA and the Univ. of Provence, with the technological support of the Liverpool Univ.. It aims at developing a chronological series of mass spectrometer devices based upon mass filter and 2D/3D ion traps with Fourier transform operating mode and having increasing levels of performances to match the previous challenges for out-of pile and in-pile experiments. The final objective is to install a high performance online mass spectrometer coupled to a gamma spectrometer in the fission product laboratory of the future Jules Horowitz Material Test Reactor. An intermediate step will consist of testing first equipment on an existing experimental facility in the LECA-STAR Hot Cell Laboratory of the CEA Cadarache. This paper presents the scientific and operational stakes linked to fission gas issues, resumes the current state of art for analyzing them in nuclear facilities, then presents the skills gathered through this collaboration to overcome technological bottlenecks. Finally it describes the implementation strategy in nuclear research facilities of the CEA Cadarache. (authors)

  15. Determination of High-Frequency Current Distribution Using EMTP-Based Transmission Line Models with Resulting Radiated Electromagnetic Fields

    SciTech Connect (OSTI)

    Mork, B; Nelson, R; Kirkendall, B; Stenvig, N

    2009-11-30T23:59:59.000Z

    Application of BPL technologies to existing overhead high-voltage power lines would benefit greatly from improved simulation tools capable of predicting performance - such as the electromagnetic fields radiated from such lines. Existing EMTP-based frequency-dependent line models are attractive since their parameters are derived from physical design dimensions which are easily obtained. However, to calculate the radiated electromagnetic fields, detailed current distributions need to be determined. This paper presents a method of using EMTP line models to determine the current distribution on the lines, as well as a technique for using these current distributions to determine the radiated electromagnetic fields.

  16. Comparison of the measured and calculated time profiles of the leakage current in the magnetically insulated transmission line of the angara-5-1 facility

    SciTech Connect (OSTI)

    Grabovski, E. V.; Gribov, A. N.; Samokhin, A. A.; Shishlov, A. O., E-mail: shishlov@triniti.ru [Troitsk Institute for Innovation and Fusion Research (Russian Federation)

    2013-10-15T23:59:59.000Z

    One of the factors limiting the transmission of the electromagnetic pulse to the load in high-power electrophysical facilities is the current leakage in magnetically insulated transmission lines (MITLs). In this paper, the Angara-5-1 eight-module facility with an output power up to 6 TW is considered. The experimental and calculated time profiles of the leakage current for eight-module shots with a dynamic load (cylindrical arrays made of 40 tungsten wires) and single-module shots with a solid cylindrical metal load are compared. When interpreting the results, the contribution of vacuum electrons to the leakage current at the transition from the cylindrical to the conical section of the MITL is taken into account.

  17. Regional Transmission Projects: Finding Solutions

    SciTech Connect (OSTI)

    The Keystone Center

    2005-06-15T23:59:59.000Z

    The Keystone Center convened and facilitated a year-long Dialogue on "Regional Transmission Projects: Finding Solutions" to develop recommendations that will help address the difficult and contentious issues related to expansions of regional electric transmission systems that are needed for reliable and economic transmission of power within and across regions. This effort brought together a cross-section of affected stakeholders and thought leaders to address the problem with the collective wisdom of their experience and interests. Transmission owners sat at the table with consumer advocates and environmental organizations. Representatives from regional transmission organizations exchanged ideas with state and federal regulators. Generation developers explored common interests with public power suppliers. Together, the Dialogue participants developed consensus solutions about how to begin unraveling some of the more intractable issues surrounding identification of need, allocation of costs, and reaching consensus on siting issues that can frustrate the development of regional transmission infrastructure. The recommendations fall into three broad categories: 1. Recommendations on appropriate institutional arrangements and processes for achieving regional consensus on the need for new or expanded transmission infrastructure 2. Recommendations on the process for siting of transmission lines 3. Recommendations on the tools needed to support regional planning, cost allocation, and siting efforts. List of Dialogue participants: List of Dialogue Participants: American Electric Power American Transmission Company American Wind Energy Association California ISO Calpine Corporation Cinergy Edison Electric Institute Environmental Defense Federal Energy Regulatory Commission Great River Energy International Transmission Company ISO-New England Iowa Public Utility Board Kanner & Associates Midwest ISO National Association of Regulatory Utility Commissioners National Association of State Utility Consumer Advocates National Grid Northeast Utilities PA Office of Consumer Advocates Pacific Gas & Electric Corporation Pennsylvania Public Utility Commission PJM Interconnection The Electricity Consumers Resource Council U.S. Department of Energy US Department of the Interior Van Ness Feldman Western Interstate Energy Board Wind on the Wires Wisconsin Public Service Commission Xcel Energy

  18. Analogue Hawking Radiation in a dc-SQUID Array Transmission Line P. D. Nation,1,* M. P. Blencowe,1

    E-Print Network [OSTI]

    Buks, Eyal

    ) where cs is the speed of sound and vĂ°rĂ? is the spatially varying velocity of the fluid. For a sound wave system was first sug- gested by Unruh who uncovered the analogy between sound waves in a fluid been proposed using Bose- Einstein condensates [4], liquid Helium [5], electromag- netic transmission

  19. EIS-0379- Rebuild of the Libby (FEC) to Troy Section of BPA’s 115-kilovolt Transmission Line in Libby, Lincoln County, Montana

    Broader source: Energy.gov [DOE]

    This Environmental Impact Statement (EIS) assesses the potential environmental impacts that would result from a proposed Department of Energy (DOE) action on the proposed rebuilding, operation, and maintenance of a 17-mile-long portion of BPA’s Libby to Bonners Ferry 115-kilovolt (kV) Transmission Line in Lincoln County, Montana. The portion to be rebuilt would start at Flathead Electric Cooperative’s (FEC) Libby Substation, in the town of Libby, Montana, and proceed west along an existing right-of-way for about 17 miles, terminating at BPA’s Troy Substation just east of the town of Troy, Montana.

  20. July 2, 2007 1 Optimal Transmission Switching

    E-Print Network [OSTI]

    Mangasarian, Olvi L.

    d to node n. zk: binary variable indicating whether transmission line k is removed from the system limit on number of open transmission lines Manuscript received July 2, 2007. This work was supported-mail: ferris@cs.wisc.edu). Sets : Set of all transmission lines L: Set of open transmission lines in solution

  1. Proposed amendment to presidential permit PP-63 and associated modifications to 500 kV international transmission line, Forbes, Minnesota to Manitoba, Canada. [Forbes Substation

    SciTech Connect (OSTI)

    Not Available

    1992-10-01T23:59:59.000Z

    This Addendum to the Final Environmental Assessment for the Proposed Amendment to Presidential Permit PP-63 and Associated Modifications to 500 kV International Transmission Line: Forbes, Minnesota to Manitoba, Canada (DOE/EA-587) addresses Northern States Power Company's (NSP) proposed expansion of the Forbes Substation. The applicant has requested that the expansion take place on the west side of the substation, within the existing property line, instead of on the north side as originally proposed. All of the proposed construction would take place on property already owned by NSP. DOE has reviewed the environmental impacts associated with this minor modification and has determined that the conclusions reached in the environmental assessment and Finding of No Significant Impact prepared in connection with NSP's original amendment request remain valid.

  2. Heavy duty insulator assemblies for 500-kV bulk power transmission line with large diameter octagonalbundled conductor

    SciTech Connect (OSTI)

    Tsujimoto, K.; Hayase, I.; Hirai, J.; Inove, M.; Naito, K.; Yukino, T.

    1982-11-01T23:59:59.000Z

    This paper describes the design procedure and the results of field tests on mechanical performances of insulator assemblies newly developed to support octagonal-bundled conductors for 500-kV bulk power transmission. Taking account of conductor-motion-induced peak tensile load, fatigue, torsional torque and others, a successful design has been achieved in two prototype assemblies for such heavy mechanical duties as encountered during conductor galloping or swing. This has been proved throughout three years of the field tests.

  3. Emitting gas regions in Mrk 493: An extensive Fe II line emission region

    E-Print Network [OSTI]

    L. C. Popovic; A. Smirnova; D. Ilic; A. Moiseev; J. Kovacevic; V. Afanasiev

    2007-01-24T23:59:59.000Z

    We performed 3D spectroscopic observations of Mrk 493 in order to investigate the Fe II emitting region and their possible connection with the Hydrogen emitting region. We found that there is a strong Fe II emission in an extensive region ~ 4" x 4" around Sy 1 nucleus. The Fe II line width indicates that these lines are originated in an intermediate line region.

  4. X-ray evaluation of coke-oven gas line deposits

    SciTech Connect (OSTI)

    Swain, Y.T.

    1983-08-01T23:59:59.000Z

    Control of coke-oven gas pipeline deposits has been facilitated through the use of an X-ray technique that provides quantitative data without disrupting plant operations.

  5. Transmission Dr. Sandra Cruz-Pol

    E-Print Network [OSTI]

    Cruz-Pol, Sandra L.

    Transmission Lines Dr. Sandra Cruz-Pol ECE Dept. UPRM Exercise 11.3 n A 40-m long TL has Vg=15 Vrms to electric circuits! cmc kmc GHz Hz 15000,000,2000/ 000,560/ 2 60 == == Transmission Lines I. TL parameters-wave transformer ¨ Slotted line ¨ Single stub VI. Microstrips Transmission Lines (TL) n TL have two conductors

  6. Cooling of Dense Gas by H2O Line Emission and an Assessment of its Effects in Chondrule-Forming Shocks

    E-Print Network [OSTI]

    M. A. Morris; S. J. Desch; F. J. Ciesla

    2008-09-29T23:59:59.000Z

    We consider gas at densities appropriate to protoplanetary disks and calculate its ability to cool due to line radiation emitted by H2O molecules within the gas. Our work follows that of Neufeld & Kaufman (1993; ApJ, 418, 263), expanding on their work in several key aspects, including use of a much expanded line database, an improved escape probability formulism, and the inclusion of dust grains, which can absorb line photons. Although the escape probabilities formally depend on a complicated combination of optical depth in the lines and in the dust grains, we show that the cooling rate including dust is well approximated by the dust-free cooling rate multiplied by a simple function of the dust optical depth. We apply the resultant cooling rate of a dust-gas mixture to the case of a solar nebula shock pertinent to the formation of chondrules, millimeter-sized melt droplets found in meteorites. Our aim is to assess whether line cooling can be neglected in chondrule-forming shocks or if it must be included. We find that for typical parameters, H2O line cooling shuts off a few minutes past the shock front; line photons that might otherwise escape the shocked region and cool the gas will be absorbed by dust grains. During the first minute or so past the shock, however, line photons will cool the gas at rates ~ 10,000 K/hr, dropping the temperature of the gas (and most likely the chondrules within the gas) by several hundred K. Inclusion of H2O line cooling therefore must be included in models of chondrule formation by nebular shocks.

  7. Environmental Assessment for Central Power and Light Company`s proposed Military Highway-CFE tie 138/69-kV transmission line project Brownsville, Cameron County, Texas

    SciTech Connect (OSTI)

    Not Available

    1992-04-01T23:59:59.000Z

    Central Power and Light Company (CPL) intends to upgrade its existing transmission line ties with the Commision Federal de Electricidad (CFE) system in Mexico. CPL currently has a single 69-kilovolt (kV) transmission line in the Brownsville area which connects CPL`s system with the system of CFE. This existing line runs between the Brownsville Switching Station, located on Laredo Road in Brownsville, Cameron County, Texas, and an existing CFE 69-kV line at the Rusteberg Bend of the Rio Grande in Cameron County. Under current conditions of need, the existing 69-kV line does not possess sufficient capability to engage in appropriate power exchanges. Therefore, CPL is proposing to build a new line to link up with CFE. This proposed line would be a double-circuit line, which would (1) continue (on a slightly relocated route) the existing 69-kV tie from CPL`s Brownsville Switching Station to CFE`s facilities, and (2) add a 138-kV tie from the Military Highway Substation, located on Military Highway (US Highway 281), to CFE`s facilities. The proposed 138/69-kV line, which will be constructed and operated by CPL, will be built primarily on steel single-pole structures within an average 60-foot (ft) wide right-of-way (ROW). It will be approximately 6900--9200 ft (1.3--1.7 miles) in length, depending on the alternative route constructed.

  8. New U. S. gas lines will restructure North American grid flows

    SciTech Connect (OSTI)

    Spiegel, E.; Johnson, E. Jr. (Booz-Allen and Hamilton Inc., Dallas, TX (US)); Viscio, A.

    1990-12-10T23:59:59.000Z

    This paper reports that completion of several major U.S. natural-gas pipeline projects will significantly change relationships among suppliers, buyers, and transporters; alter pipeline flows and tariffs; and affect producer economics. The competitive and regulatory environment of the natural-gas industry continues to change under great uncertainty. Within this rapidly changing environment, many long-discussed but often-delayed pipeline projects are nearing or have entered the construction phase. These projects represent more than 5 bcf/day (bcfd) of capacity targeting three major markets that now consume an average of 23 bcfd.

  9. On-line non-contact gas analysis Alexander Fateev, Snnik Clausen

    E-Print Network [OSTI]

    in a spectral range and temperature level of interest. High-resolution IR- and UV-absorption spectra of the NO have been measured with a hot gas cell operated from the ambient up to 1400 ­ 1500 °C. Similarly, high optical head mounted on the end of the 9-m long water-cooled probe. Light emerging from a UV- lamp passes

  10. On-line gas chromatographic studies of rutherfordium (Element 104), hahnium (Element 105), and homologs

    SciTech Connect (OSTI)

    Kadkhodayan, B.

    1993-05-01T23:59:59.000Z

    Gas-phase isothermal chromatogaphy is a method by which volatile compounds of different chemical elements can be separated according to their volatilities. The technique, coupled with theoretical modeling of the processes occurring in the chromatogaphy column, provides accurate determination of thermodynamic properties (e.g., adsorption enthalpies) for compounds of elements, such as the transactinides, which can only be produced on an atom-at-a-time basis. In addition, the chemical selectivity of the isothermal chromatogaphy technique provides the decontamination from interfering activities necessary for the determination of the nuclear decay properties of isotopes of the transactinide elements. Volatility measurements were performed on chloride species of Rf and its group 4 homologs, Zr and Hf, as well as Ha and its group 5 homologs, Nb and Ta. Adsorption enthalpies were calculated for all species using a Monte Carlo code simulation based on a microscopic model for gas thermochromatography in open columns with laminar flow of the carrier gas. Preliminary results are presented for Zr- and Nb-bromides.

  11. Lumped transmission line avalanche pulser

    DOE Patents [OSTI]

    Booth, Rex (Livermore, CA)

    1995-01-01T23:59:59.000Z

    A lumped linear avalanche transistor pulse generator utilizes stacked transistors in parallel within a stage and couples a plurality of said stages, in series with increasing zener diode limited voltages per stage and decreasing balanced capacitance load per stage to yield a high voltage, high and constant current, very short pulse.

  12. Lumped transmission line avalanche pulser

    DOE Patents [OSTI]

    Booth, R.

    1995-07-18T23:59:59.000Z

    A lumped linear avalanche transistor pulse generator utilizes stacked transistors in parallel within a stage and couples a plurality of said stages, in series with increasing zener diode limited voltages per stage and decreasing balanced capacitance load per stage to yield a high voltage, high and constant current, very short pulse. 8 figs.

  13. Electric Transmission Line Siting Compact

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

    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 742Energy Chinaof EnergyImpactOn July 2, 2014 in theGroup ReportLowand ContactDepartmentElectric

  14. 1346 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 23, NO. 3, AUGUST 2008 Optimal Transmission Switching

    E-Print Network [OSTI]

    Ferris, Michael C.

    to node . Binary variable indicating whether transmission line is removed from the system (open susceptance of line . Large number. Upper limit on number of open transmission lines. Sets Set of all transmission lines. Set of open transmission lines in solution to transmission switching in which

  15. Proposed amendment for Presidential Permit PP-63 and associated modifications to 500 kV international transmission line, Forbes, Minnesota to Manitoba, Canada Northern States Power Company. Final Environmental Assessment

    SciTech Connect (OSTI)

    Not Available

    1992-02-01T23:59:59.000Z

    Northern States Power Company, (NSP), a Minnesota investor owned utility has applied to the Office of Fossil Energy, United States Department of Energy, to amend Presidential Permit PP-63 to allow for alterations to the 500 kV transmission line and as sedated facilities currently regulated by this permit. The alterations proposed for the 500 kV line owned by NSP are part of a long term effort sponsored by NSP to upgrade the existing NSP transmission system to allow for increased exchange of electricity with the Manitoba Hydro-Electric Board. Presidential Permit PP-63 authorized NSP to construct, connect, operate and maintain a 500 kV line at the United States/Canadian border approximately seven-and-a-half miles west of Warroad in Roseau County, Minnesota. This line connects with a 500 kV line owned and operated by the Manitoba Hydro-Electric Board (MHEB), which extends from Dorsey, Manitoba, Canada to the United States/Canadian border. NSP proposes to increase the electricity transfer capability of this transmission facility by constructing a new 80-acre substation on the existing 500 kV line in Roseau County, Minnesota, and upgrading the existing substation at Forbes, Minnesota. The proposed Roseau substation would contain two 41.5 ohm series capacitor banks. In addition, static VAR compensators are to be installed at the existing Forbes Substation. Approximately 5 acres would be added to the 30-acre Forbes site to house the additional equipment. No new lines would enter or exit the facility. NSP proposes to place the new Roseau Substation in service in May 1993 and to complete the upgrading of the Forbes Substation in March 1994. The primary, initial purpose of these modifications is to enable NSP to import 400 megawatts of electric power from MHEB during the summer months to meet peak electrical demand in the Minneapolis-St. Paul area. It is expected that this power transfer would begin in 1993.

  16. Draft environmental impact statement for construction and operation of the proposed Bangor Hydro-Electric Company`s second 345-kV transmission tie line to New Brunswick

    SciTech Connect (OSTI)

    NONE

    1993-10-01T23:59:59.000Z

    This Draft Environmental Impact Statement (DEIS) was prepared by the US Department of Energy (US DOE). The proposed action is the issuance of Presidential Permit PP-89 by DOE to Bangor Hydro-Electric Company to construct and operate a new international transmission line interconnection to New Brunswick, Canada that would consist of an 83.8 mile (US portion), 345-kilovolt (kV) alternating current transmission line from the US-Canadian border at Baileyville, Maine to an existing substation at Orrington, Maine. The principal environmental impacts of the construction and operation of the transmission line would be incremental in nature and would include the conversion of forested uplands (mostly commercial timberlands) and wetlands to right-of-way (small trees, shrubs, and herbaceous vegetation). The proposed line would also result in localized minor to moderate visual impacts and would contribute a minor incremental increase in the exposure of some individuals to electromagnetic fields. This DEIS documents the purpose and need for the proposed action, describes the proposed action and alternatives considered and provides a comparison of the proposed and alternatives routes, and provides detailed information on analyses of the environmental consequences of the proposed action and alternatives, as well as mitigative measures to minimize impacts.

  17. Development Of An Acoustice Sensor For On-Line Gas Temperature Measurement In Gasifiers

    SciTech Connect (OSTI)

    Peter Ariessohn; Hans Hornung

    2006-10-01T23:59:59.000Z

    This project was awarded under U.S. Department of Energy (DOE) National Energy Technology Laboratory (NETL) Program Solicitation DE-PS26-02NT41422 and specifically addresses Technical Topical Area 2 - Gasification Technologies. The project team includes Enertechnix, Inc. as the main contractor and ConocoPhillips Company as a technical partner, who also provides access to the SG Solutions Gasification Facility (formerly Wabash River Energy Limited), host for the field-testing portion of the research. The objective of this project was to adapt acoustic pyrometer technology to make it suitable for measuring gas temperature inside a coal gasifier, to develop a prototype sensor based on this technology, and to demonstrate its performance through testing on a commercial gasifier. The project was organized in three phases, each of approximately one year duration. The first phase consisted of researching a variety of sound generation and coupling approaches suitable for use with a high pressure process, evaluation of the impact of gas composition variability on the acoustic temperature measurement approach, evaluation of the impact of suspended particles and gas properties on sound attenuation, evaluation of slagging issues and development of concepts to deal with this issue, development and testing of key prototype components to allow selection of the best approaches, and development of a conceptual design for a field prototype sensor that could be tested on an operating gasifier. The second phase consisted of designing and fabricating a series of prototype sensors, testing them in the laboratory, and developing a conceptual design for a field prototype sensor. The third phase consisted of designing and fabricating the field prototype, and testing it in the lab and in a commercial gasifier to demonstrate the ability to obtain accurate measurements of gas temperature in an operating gasifier. This report describes all of the activities conducted during the project and reports the findings of each activity in detail. The investigation of potential sound generation and coupling methods led to the selection of a reflected shock method which has been developed into a functioning prototype device. The principles of operation of this device and its performance characteristics are described in the report. Modeling of the attenuation of sound by suspended particles and by interaction of the sound pulses with the high temperature syngas inside the gasifier was conducted and the predictions of those models were used to determine the required sound pulse intensity to allow the sound pulses to be detected after passage through the gasifier environment. These modeling results are presented in this report. A study of the likely spatial and temporal variability of gas composition inside the gasifier was performed and the results of that study was used to predict the impact of that variability on the accuracy of the acoustic temperature method. These results are reported here. A design for a port rodding mechanism was developed to deal with potential slagging issues and was incorporated into the prototype sensor. This port rodding mechanism operated flawlessly during the field testing, but because these tests were performed in a region of the gasifier that experiences little slagging, the effectiveness of the rodding mechanism in dealing with highly slagging conditions was not fully demonstrated. This report describes the design and operation of the automated Gasifier Acoustic Pyrometer (autoGAP) which was tested at the Wabash River facility. The results of the tests are reported and analyzed in detail. All of the objectives of the project have been achieved. A field prototype acoustic pyrometer sensor has been successfully tested at the Wabash River gasifier plant. Acoustic signals were propagated through the gases inside the gasifier and were detected by the receiver unit, the times of flight of these sound pulses were measured and these propagation times were converted into temperatures which agreed very well with thermocouple measurements m

  18. Development of an Acoustic Sensor On-Line Gas Temperature Measurement in Gasifiers

    SciTech Connect (OSTI)

    Peter Ariessohn

    2008-06-30T23:59:59.000Z

    This project was awarded under U.S. Department of Energy (DOE) National Energy Technology Laboratory (NETL) Program Solicitation DE-PS26-02NT41422 and specifically addresses Technical Topical Area 2 - Gasification Technologies. The project team includes Enertechnix, Inc. as the main contractor and ConocoPhillips Company as a technical partner, who also provides access to the SG Solutions Gasification Facility (formerly Wabash River Energy Limited), host for the field-testing portion of the research. The objective of this project was to adapt acoustic pyrometer technology to make it suitable for measuring gas temperature inside a coal gasifier, to develop a prototype sensor based on this technology, and to demonstrate its performance through testing on a commercial gasifier. The project was organized in three phases, each of approximately one year duration. The first phase consisted of researching a variety of sound generation and coupling approaches suitable for use with a high pressure process, evaluation of the impact of gas composition variability on the acoustic temperature measurement approach, evaluation of the impact of suspended particles and gas properties on sound attenuation, evaluation of slagging issues and development of concepts to deal with this issue, development and testing of key prototype components to allow selection of the best approaches, and development of a conceptual design for a field prototype sensor that could be tested on an operating gasifier. The second phase consisted of designing and fabricating a series of prototype sensors, testing them in the laboratory, and developing a conceptual design for a field prototype sensor. The third phase consisted of designing and fabricating the field prototype, and testing it in the lab and in a commercial gasifier to demonstrate the ability to obtain accurate measurements of gas temperature in an operating gasifier. Following the completion of the initial 3 year project, several continuations were awarded by the Department of Energy to allow Enertechnix to conduct extended testing of the sensor at the Wabash River facility. In February, 2008 the sensor was installed on the gasifier in preparation for a long-term test. During the initial testing of the sensor a stainless steel tube on the sensor failed and allowed syngas to escape. The syngas self-ignited and the ensuing small fire damaged some of the components on the sensor. There was no damage to the gasifier or other equipment and no injuries resulted from this incident. Two meetings were held to identify the root causes of the incident-one at Wabash River and one at Enertechnix. A list of recommended improvements that would have addressed the causes of the incident was created and presented to the Department of Energy on May 2, 2008. However, the DOE decided not to pursue these improvements and terminated the project. This report describes all of the activities conducted during the project and reports the findings of each activity in detail. The investigation of potential sound generation and coupling methods led to the selection of a reflected shock method which has been developed into a functioning prototype device. The principles of operation of this device and its performance characteristics are described in the report. Modeling of the attenuation of sound by suspended particles and by interaction of the sound pulses with the high temperature syngas inside the gasifier was conducted and the predictions of those models were used to determine the required sound pulse intensity to allow the sound pulses to be detected after passage through the gasifier environment. These modeling results are presented in this report. A study of the likely spatial and temporal variability of gas composition inside the gasifier was performed and the results of that study was used to predict the impact of that variability on the accuracy of the acoustic temperature method. These results are reported here. A design for a port rodding mechanism was developed to deal with potential slagging issues and was incorporated i

  19. On-line fast response device and method for measuring dissolved gas in a fluid

    DOE Patents [OSTI]

    Tutu, Narinder Kumar (Manorville, NY)

    2011-01-11T23:59:59.000Z

    A method and device for the measurement of dissolved gas within a fluid. The fluid, substantially a liquid, is pumped into a pipe. The flow of the fluid is temporally restricted, creating one or more low pressure regions. A measurement indicative of trapped air is taken before and after the restriction. The amount of dissolved air is calculated from the difference between the first and second measurements. Preferably measurements indicative of trapped air is obtained from one or more pressure transducers, capacitance transducers, or combinations thereof. In the alternative, other methods such as those utilizing x-rays or gamma rays may also be used to detect trapped air. Preferably, the fluid is a hydraulic fluid, whereby dissolved air in the fluid is detected.

  20. Hybrid Transmission Corridor study

    SciTech Connect (OSTI)

    Clairmont, B.A.; Johnson, G.B.; Zaffanella, L.E. (General Electric Co., Lenox, MA (United States))

    1992-06-01T23:59:59.000Z

    Hybrid Transmission Corridors are areas where High Voltage Alternating Current (HVAC) transmission lines and High Voltage Direct Current (HVDC) transmission lines exist in close proximity of each other. Because of the acceptance of HVDC as a means of transporting electric power over long distances and the difficulties associated with obtaining new right-of-ways, HVDC lines may have to share the same transmission corridor with HVAC lines. The interactions between conductors energized with different types of voltages causes changes in the electrical stresses applied to the conductors and insulators. As a result, corona phenomena, field effects and insulation performance can be affected. This report presents the results of an investigation of the HVAC-HVDC interaction and its effect on corona and AC and DC electric field phenomena. The method of investigation was based on calculation methods developed at the EPRI High Voltage Transmission Research Center (HVTRC) and supported by the results of full and reduced-scale line tests. Also, a survey of existing hybrid corridors is given along with the results of measurements made at one of those corridors. A number of examples in which an existing AC corridor may be transformed into a hybrid corridor are discussed. The main result of the research is an analytical/empirical model for predicting the electrical/environmental performance of hybrid corridors, a definition of ACDC interaction and a set of criteria for specifying when the interaction becomes significant, and a set of design rules.

  1. Bulk Power Transmission Study

    E-Print Network [OSTI]

    John, T.

    BULK POWER TRANSMISSION STUDY TOMMY JOH~ P. E. Manager of Resource Recovery Waste Management of North America, Inc. Houston, Texas Texans now have a choice. We can become more efficient and maintain our standard of living, or we can... continue business as usual and watch our standard of living erode from competition from other regions. In the past, except for improving reliability, there was no need for a strong transmission system. When Texas generation was primarily gas fueled...

  2. Model documentation natural gas transmission and distribution model (NGTDM) of the national energy modeling system. Volume II: Model developer`s report

    SciTech Connect (OSTI)

    Not Available

    1995-01-03T23:59:59.000Z

    To partially fulfill the requirements for {open_quotes}Model Acceptance{close_quotes} as stipulated in EIA Standard 91-01-01 (effective February 3, 1991), the Office of Integrated Analysis and Forecasting has conducted tests of the Natural Gas Transmission and Distribution Model (NGTDM) for the specific purpose of validating the forecasting model. This volume of the model documentation presents the results of {open_quotes}one-at-a-time{close_quotes} sensitivity tests conducted in support of this validation effort. The test results are presented in the following forms: (1) Tables of important model outputs for the years 2000 and 2010 are presented with respect to change in each input from the reference case; (2) Tables of percent changes from base case results for the years 2000 and 2010 are presented for important model outputs; (3) Tables of conditional sensitivities (percent change in output/percent change in input) for the years 2000 and 2010 are presented for important model outputs; (4) Finally, graphs presenting the percent change from base case results for each year of the forecast period are presented for selected key outputs. To conduct the sensitivity tests, two main assumptions are made in order to test the performance characteristics of the model itself and facilitate the understanding of the effects of the changes in the key input variables to the model on the selected key output variables: (1) responses to the amount demanded do not occur since there are no feedbacks of inputs from other NEMS models in the stand-alone NGTDM run. (2) All the export and import quantities from and to Canada and Mexico, and liquefied natural gas (LNG) imports and exports are held fixed (i.e., there are no changes in imports and exports between the reference case and the sensitivity cases) throughout the forecast period.

  3. Ejecta Particle-Size Measurements in Vacuum and Helium Gas using Ultraviolet In-Line Fraunhofer Holography

    SciTech Connect (OSTI)

    Sorenson, Danny S. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Pazuchanics, Peter [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Johnson, Randall P. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Malone, R. M. [National Security Technologies, LLC. (NSTec), Los Alamos, NM (United States); Kaufman, M. I. [National Security Technologies, LLC. (NSTec), Los Alamos, NM (United States); Tibbitts, A. [National Security Technologies, LLC. (NSTec), Los Alamos, NM (United States); Tunnell, T. [National Security Technologies, LLC. (NSTec), Los Alamos, NM (United States); Marks, D. [National Security Technologies, LLC. (NSTec), Los Alamos, NM (United States); Capelle, G. A. [National Security Technologies, LLC. (NSTec), Santa Barbara, CA (United States); Grover, M. [National Security Technologies, LLC. (NSTec), Santa Barbara, CA (United States); Marshall, B. [National Security Technologies, LLC. (NSTec), Santa Barbara, CA (United States); Stevens, G. D. [National Security Technologies, LLC. (NSTec), Santa Barbara, CA (United States); Turley, W. D. [National Security Technologies, LLC. (NSTec), Santa Barbara, CA (United States); LaLone, B. [National Security Technologies, LLC. (NSTec), Santa Barbara, CA (United States)

    2014-06-25T23:59:59.000Z

    An Ultraviolet (UV) in-line Fraunhofer holography diagnostic has been developed for making high-resolution spatial measurements of ejecta particles traveling at many mm/?sec. This report will discuss the development of the diagnostic including the high-powered laser system and high-resolution optical relay system. In addition, the system required to reconstruct the images from the hologram and the corresponding analysis of those images to extract particles will also be described. Finally, results from six high-explosive (HE), shock-driven Sn ejecta experiments will be presented. Particle size distributions will be shown that cover most of the ejecta velocities for experiments conducted in a vacuum, and helium gas environments. In addition, a modification has been made to the laser system that produces two laser pulses separated by 6.8 ns. This double-pulsed capability allows a superposition of two holograms to be acquired at two different times, thus allowing ejecta velocities to be measured directly. Results from this double pulsed experiment will be described.

  4. Ejecta Particle-Size Measurements in Vacuum and Helium Gas using Ultraviolet In-Line Fraunhofer Holography

    SciTech Connect (OSTI)

    Sorenson, D. S. [LANL; Pazuchanics, P. [LANL; Johnson, R. [LANL; Malone, R. M. [NSTec; Kaufman, M. I. [NSTec; Tibbitts, A. [NSTec; Tunnell, T. [NSTec; Marks, D. [NSTec; Capelle, G. A. [NSTec; Grover, M. [NSTec; Marshall, B. [NSTec; Stevens, G. D. [NSTec; Turley, W. D. [NSTec; LaLone, B. [NSTec

    2014-06-30T23:59:59.000Z

    An ultraviolet (UV) in-line Fraunhofer holography diagnostic has been developed for making high-resolution spatial measurements of ejecta particles traveling at many mm/?sec. This report will discuss the development of the diagnostic, including the high-powered laser system and high-resolution optical relay system. In addition, we will also describe the system required to reconstruct the images from the hologram and the corresponding analysis of those images to extract particles. Finally, we will present results from six high-explosive (HE), shock-driven Sn-ejecta experiments. Particle-size distributions will be shown that cover most of the ejecta velocities for experiments conducted in a vacuum, and helium gas environments. In addition, a modification has been made to the laser system that produces two laser pulses separated by 6.8 ns. This double-pulsed capability allows a superposition of two holograms to be acquired at two different times, thus allowing ejecta velocities to be measured directly. Results from this double-pulsed experiment will be described.

  5. GTAW penetration based on electrode tip location versus weld joint center line. [Gas Tungsten Arc Welding (GTAW)

    SciTech Connect (OSTI)

    Daumeyer, G.J. III.

    1992-11-01T23:59:59.000Z

    Gas Tungsten Arc Welding (GTAW) is often the chosen process for final enclosure welds of heat sensitive electrical and electronic product. GTAW is used to produce welds that satisfy design requirements (usually a penetration requirement) and not expose the product to such high heat that would cause unwanted damage. An important variable in the GTAW process is the location of the Electrode tip over the weld joint center line. This study shows the tolerance of positional location over a narrow scope. Using coupons which represent the W88 container weld joint geometry, penetration vs. electrode tip positional location (offset) is investigated. Results indicate a positional location tolerance of [plus minus] 0.008 in. is acceptable. Several different major components (MCS) supporting various weapons programs require low heat input GTA welds. The electrode tip positional location tolerance is determined by each MC's weld joint tolerances and heat sensitivity. For this short study, the weld joint geometry of a container weld was used. These coupons were welded with the specified weld schedule and one additional weld schedule in order to show the relationship based on both travel speed and gap. Multiple coupon welds were made to eliminate error in the results. Within the scope of this research, a positional tolerance of [plus minus] 0.008 in. of the electrode center over the weld joint center is required. For other MCs this tolerance may be tighter or more relaxed depending upon the specific considerations.

  6. Comparison of 13CO Line and Far-Infrared Continuum Emission as a Diagnostic of Dust and Molecular Gas Physical Conditions: III. Systematic Effects and Scientific Implications

    E-Print Network [OSTI]

    W. F. Wall

    2007-03-26T23:59:59.000Z

    Far-infrared continuum data from the {\\it COBE}/{\\it DIRBE} instrument were combined with Nagoya 4-m $\\cOone$ spectral line data to infer the multiparsec-scale physical conditions in the Orion$ $A and B molecular clouds, using 140$\\um$/240$\\um$ dust color temperatures and the 240$\\um$/$\\cOone$ intensity ratios. In theory, the ratio of far-IR, submillimeter, or millimeter continuum to that of a $\\cO$ (or $\\Co$) rotational line can place reliable upper limits on the temperature of the dust and molecular gas on multi-parsec scales; on such scales, both the line and continuum emission are optically thin, resulting in a continuum-to-line ratio that suffers no loss of temperature sensitivity in the high-temperature limit as occurs for ratios of CO rotational lines or ratios of continuum emission in different wavelength bands. Two-component models fit the Orion data best, where one has a fixed-temperature and the other has a spatially varying temperature. The former represents gas and dust towards the surface of the clouds that are heated primarily by a very large-scale (i.e. $\\sim 1 $kpc) interstellar radiation field. The latter represents gas and dust at greater depths into the clouds and are shielded from this interstellar radiation field and heated by local stars. The inferred physical conditions are consistent with those determined from previously observed maps of $\\COone$ and $\\Jtwo$ that cover the entire Orion$ $A and B molecular clouds. The models require that the dust-gas temperature difference is 0$\\pm 2 $K. If this surprising result applies to much of the Galactic ISM, except in unusual regions such as the Galactic Center, then there are a number implications.

  7. Uncertain Power Flows and Transmission Planning

    E-Print Network [OSTI]

    capability and quantifying transmission revenues under uncertainty. Illustrative analyses demonstrated potential uses in transmission planning. Part I:Stochastic-Algebraic Evaluation of Available Transfer using a deterministic model for a given system state specified by given loads, generation, line

  8. Transmission Issues and Power Exchanges in Texas

    E-Print Network [OSTI]

    Hughes, H. L.

    on the transmission owning utilities by several parties, primary distribution cooperatives, cogenerators, and large industrial customers, to grant wider access to the system. This pressure is coming at a time when transmission lines are becoming increasingly difficult...

  9. On-line weld penetration detection and control in automated gas tungsten arc welding. Ph.D. Thesis

    SciTech Connect (OSTI)

    Banerjee, P.

    1994-01-01T23:59:59.000Z

    The present work was undertaken to study the feasibility of monitoring and controlling weld penetration variations in real-time using an infrared detector. Weld penetration variations induced on mild steel plates were examined with an infrared detector and the acquired data analyzed to detect weld penetration variations using a mathematical analysis. Selected weld penetration indicators were developed and used to demonstrate on-line weld penetration control. A three-dimensional solid-state, transient heat transfer model was also developed to help identify key changes in thermal distributions which could be used as weld penetration indicators. A transient three-dimensional heat transfer model was used to solve the differential energy balance for the GTA welding process. The computed temperatures obtained from the model were used to determine the variation of the isothermal map, surface temperature profile and temperature gradient with weld penetration. Good agreement between experimental and computed indicators was obtained. Gas tungsten arc welds were performed on steel plates with intentionally introduced defects such as sudden thickness changes and minor element content changes. Extensive mathematical analysis helped correlate weld penetration variations to parameters such as the peak infrared intensity, intensity gradient over a fixed distance, intensity gradient at the inflection points in the first differential of the intensity profile (linescan), computed width of the weld pool, intensity gradient at a point in the weld pool, area enclosed by the linescan and area enclosed by the linescan after compensating for background illumination. The shape of the weld pool front was also determined from a differential analysis of the infrared data. Inconsistent behavior of some weld penetration indicators led to their elimination from the selection process for the best error signal.

  10. EIS-0116-S1: Final Supplemental Environmental Impact Statement for the Blue River-Gore Pass Portion of the Hayden-Blue River Transmission Line Project, Grand and Summit Counties, Colorado

    Broader source: Energy.gov [DOE]

    This supplemental environmental impact statement by the Western Area Power Administration assesses the environmental effects of constructing, operating, and maintaining about 30 miles of 230/345-kV transmission line between the existing Gore Pass Substation northwest of Kremmling, Colorado, and a proposed new substation (not part of this action) near the Ute Pass Road. Alternatives assessed included routing and design alternatives plus the alternatives addressed in the Hayden-Blue River Final EIS, issued by the Rural Electrification Administration in July 1982 and adopted by DOE in June 1985 (see DOE/EIS-0116).

  11. Proposed Amendment to Presidential Permit PP-63 and Associated Modifications to 500-kV International Transmission Line: Forbes, Minnesota to Manitoba, Canada, Northern States Power Company. Addendum to the final Environmental Assessment

    SciTech Connect (OSTI)

    Not Available

    1992-10-01T23:59:59.000Z

    This Addendum to the Final Environmental Assessment for the Proposed Amendment to Presidential Permit PP-63 and Associated Modifications to 500 kV International Transmission Line: Forbes, Minnesota to Manitoba, Canada (DOE/EA-587) addresses Northern States Power Company`s (NSP) proposed expansion of the Forbes Substation. The applicant has requested that the expansion take place on the west side of the substation, within the existing property line, instead of on the north side as originally proposed. All of the proposed construction would take place on property already owned by NSP. DOE has reviewed the environmental impacts associated with this minor modification and has determined that the conclusions reached in the environmental assessment and Finding of No Significant Impact prepared in connection with NSP`s original amendment request remain valid.

  12. Proposed amendment to presidential permit PP-63 and associated modifications to 500 kV international transmission line, Forbes, Minnesota to Manitoba, Canada. Addendum to the final environmental assessment

    SciTech Connect (OSTI)

    Not Available

    1992-10-01T23:59:59.000Z

    This Addendum to the Final Environmental Assessment for the Proposed Amendment to Presidential Permit PP-63 and Associated Modifications to 500 kV International Transmission Line: Forbes, Minnesota to Manitoba, Canada (DOE/EA-587) addresses Northern States Power Company`s (NSP) proposed expansion of the Forbes Substation. The applicant has requested that the expansion take place on the west side of the substation, within the existing property line, instead of on the north side as originally proposed. All of the proposed construction would take place on property already owned by NSP. DOE has reviewed the environmental impacts associated with this minor modification and has determined that the conclusions reached in the environmental assessment and Finding of No Significant Impact prepared in connection with NSP`s original amendment request remain valid.

  13. Comparison of 13CO Line and Far-Infrared Continuum Emission as a Diagnostic of Dust and Molecular Gas Physical Conditions: I. Motivation and Modeling

    E-Print Network [OSTI]

    W. F. Wall

    2006-05-25T23:59:59.000Z

    Determining temperatures in molecular clouds from ratios of CO rotational lines or from ratios of continuum emission in different wavelength bands suffers from reduced temperature sensitivity in the high-temperature limit. In theory, the ratio of far-IR, submillimeter, or millimeter continuum to that of a 13CO (or C18O) rotational line can place reliable upper limits on the temperature of the dust and molecular gas. Consequently, far-infrared continuum data from the {\\it COBE}/{\\it DIRBE} instrument and Nagoya 4-m $\\cOone$ spectral line data were used to plot 240$\\um$/13CO J=1-0 intensity ratios against 140$\\um$/240$\\um$ dust color temperatures, allowing us to constrain the multiparsec-scale physical conditions in the Orion$ $A and B molecular clouds. The best-fitting models to the Orion clouds consist of two components: a component near the surface of the clouds that is heated primarily by a very large-scale (i.e. $\\sim 1 $kpc) interstellar radiation field and a component deeper within the clouds. The former has a fixed temperature and the latter has a range of temperatures that varies from one sightline to another. The models require a dust-gas temperature difference of 0$\\pm 2 $K and suggest that 40-50% of the Orion clouds are in the form of dust and gas with temperatures between 3 and 10$ $K. These results have a number implications that are discussed in detail in later papers. These include stronger dust-gas thermal coupling and higher Galactic-scale molecular gas temperatures than are usually accepted, an improved explanation for the N(H$_2$)/I(CO) conversion factor, and ruling out one dust grain alignment mechanism.

  14. The evaluation and restoration of a deteriorated buried gas pipeline

    SciTech Connect (OSTI)

    Dovico, R.; Montero, E.

    1996-12-31T23:59:59.000Z

    Historically, the Argentine gas transmission and distribution industry was owned and operated by the State. In 1992, by government decree, this entire industry was transferred to private owners and operators, and divided into two Gas Transmission Companies (TGN and TGS) and eight Gas Distribution Companies. The pipelines and related facilities had been left in an operating condition, however major capital investments were required to assure that the integrity, reliability and operability of the facilities were intact. These capital expenditures were mandatory in many areas as part of the privatization. Maintenance and rehabilitation tasks were developed for the entire transmission system, with the intent to reduce the number of unscheduled outages, optimize system maintenance costs, increase operation safety, and upgrade the pipeline to ensure compliance with the international code. Transportadora de Gas del Norte (TGN), operated by Nova Gas International of Calgary, Canada, consists of two major pipeline transmission systems. The North Line, which transports gas from Northern Argentina and Bolivia to markets south to Buenos Aires is a 24 inch, 3,000 Km system constructed in 1960. It was constructed using a field applied asphalt coating system. The Center West Line, which transports gas from central Argentina (Neuquen) to markets in the western part of the country and also the Buenos Aires area, is a 30 inch, 1,400 Km system constructed in 1981. It was constructed using a field applied polyethylene tape coating system.

  15. EIS-0231: Navajo Transmission Project

    Broader source: Energy.gov [DOE]

    This EIS evaluates the environmental impacts of a proposal to by Dine Power Authority, a Navajo Nation enterprise, to construct, operate, and maintain a 500 kilovolt (kV) transmission line planned...

  16. An Annotated Bibliography of High-Voltage Direct-Current Transmission and Flexible AC Transmission (FACTS) Devices, 1991-1993.

    SciTech Connect (OSTI)

    Litzenberger, Wayne; Lava, Val

    1994-08-01T23:59:59.000Z

    References are contained for HVDC systems, converter stations and components, overhead transmission lines, cable transmission, system design and operations, simulation of high voltage direct current systems, high-voltage direct current installations, and flexible AC transmission system (FACTS).

  17. Biennial Assessment of the Fifth Power Plan Transmission Issues

    E-Print Network [OSTI]

    unscheduled electricity flows over transmission lines leading to increased risks to electric system by the partners in the Colstrip 500 kV transmission lines (Northwestern Energy, Puget Sound Energy, Portland

  18. Proponent's Environmental Assessment (PEA) Checklist for Transmission...

    Open Energy Info (EERE)

    Proponent's Environmental Assessment (PEA) Checklist for Transmission Line and Substation Projects Jump to: navigation, search OpenEI Reference LibraryAdd to library Permitting...

  19. Altamont gas pipeline project delayed 1 year

    SciTech Connect (OSTI)

    Not Available

    1992-08-03T23:59:59.000Z

    Altamont Gas Transmission Co. will delay laying a 30 in., 620 mile pipeline to deliver Canadian gas to California until markets become more responsive. This paper reports that the decision will delay until November 1994 completion of the proposed 719 MMcfd, $612 million line. The original schedule called for construction to begin in spring 1993 with an in-service date of late 1993. Altamont pipeline is to transport gas from the US-Canadian border at Port of Wild Horse, Mont., to Opal, Wyo., where it will interconnect with the Kern River Transmission Co. pipeline to California. Altamont has obtained all regulatory approvals for its project. Altamont the project sponsors Tenneco Gas, Amoco Corp., and Entech Inc. support the decision to delay the start of construction.

  20. Transmission Services

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

    Return to Daylight Saving Time Posted: 2232015 Effective Date: 382015 This document provides the procedure for reserving and scheduling transmission that spans the time change...

  1. Coherent soliton communication lines

    SciTech Connect (OSTI)

    Yushko, O. V., E-mail: olesya.yushko@gmail.com; Redyuk, A. A.; Fedoruk, M. P.; Turitsyn, S. K. [Novosibirsk State University (Russian Federation)

    2014-11-15T23:59:59.000Z

    The data transmission in coherent fiber-optical communication lines using solitons with a variable phase is studied. It is shown that nonlinear coherent structures (solitons) can be applied for effective signal transmission over a long distance using amplitude and optical-phase keying of information. The optimum ratio of the pulse width to the bit slot at which the spectral efficiency (transmitted bits per second and hertz) is maximal is determined. It is shown that soliton fiber-optical communication lines can ensure data transmission at a higher spectral efficiency as compared to traditional communication lines and at a high signal-to-noise ratio.

  2. Transmission Services J7000

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

    Transmission Business Unit - J7300 CRSP - DSW - RMR Open Access Transmission Tariff Management Transmission Service Requests Interconnection Requests OASIS...

  3. Pipe line activity expected to maintain current levels throughout 1990s. [Global construction trends in natural gas and oil pipelines

    SciTech Connect (OSTI)

    Ives, G. Jr.

    1993-11-01T23:59:59.000Z

    This article consists of several smaller papers which discuss the construction projections for new oil and gas pipelines on a global basis, excluding the US and Canada. The paper provides numerous tables showing the projected types and mileages for proposed pipelines and the types of products to be shipped in each pipeline. The article features activities of individual countries and regions which have any significant oil or gas production. The individual papers are broken into continental regions including Europe, the North Sea, Africa, the Middle East, Indonesia, the Far East, Australia, Central America, and South America.

  4. Comparison of 13CO Line and Far-Infrared Continuum Emission as a Diagnostic of Dust and Molecular Gas Physical Conditions: II. The Simulations: Testing the Method

    E-Print Network [OSTI]

    W. F. Wall

    2006-01-24T23:59:59.000Z

    The reliability of modeling the far-IR continuum to 13CO J=1-0 spectral line ratios applied to the Orion clouds (Wall 2006) is tested by applying the models to simulated data. The two-component models are found to give the dust-gas temperature difference, $\\DT$, to within 1 or 2$ $K. However, other parameters like the column density per velocity interval and the gas density can be wrong by an order of magnitude or more. In particular, the density can be systematically underestimated by an order of magnitude or more. The overall mass of the clouds is estimated correctly to within a few percent. The one-component models estimate the column density per velocity interval and density within factors of 2 or 3, but their estimates of $\\DT$ can be wrong by 20$ $K. They also underestimate the mass of the clouds by 40-50%. These results may permit us to reliably constrain estimates of the Orion clouds' physical parameters, based on the real observations of the far-IR continuum and 13CO J=1-0 spectral line. Nevertheless, other systematics must be treated first. These include the effects of background/foreground subtraction, effects of the HI component of the ISM, and others. These will be discussed in a future paper (Wall 2006a).

  5. HVDC power transmission technology assessment

    SciTech Connect (OSTI)

    Hauth, R.L.; Tatro, P.J.; Railing, B.D. [New England Power Service Co., Westborough, MA (United States); Johnson, B.K.; Stewart, J.R. [Power Technologies, Inc., Schenectady, NY (United States); Fink, J.L.

    1997-04-01T23:59:59.000Z

    The purpose of this study was to develop an assessment of the national utility system`s needs for electric transmission during the period 1995-2020 that could be met by future reduced-cost HVDC systems. The assessment was to include an economic evaluation of HVDC as a means for meeting those needs as well as a comparison with competing technologies such as ac transmission with and without Flexible AC Transmission System (FACTS) controllers. The role of force commutated dc converters was to be assumed where appropriate. The assessment begins by identifying the general needs for transmission in the U.S. in the context of a future deregulated power industry. The possible roles for direct current transmission are then postulated in terms of representative scenarios. A few of the scenarios are illustrated with the help of actual U.S. system examples. non-traditional applications as well as traditional applications such as long lines and asynchronous interconnections are discussed. The classical ``break-even distance`` concept for comparing HVDC and ac lines is used to assess the selected scenarios. The impact of reduced-cost converters is reflected in terms of the break-even distance. This report presents a comprehensive review of the functional benefits of HVDC transmission and updated cost data for both ac and dc system components. It also provides some provocative thoughts on how direct current transmission might be applied to better utilize and expand our nation`s increasingly stressed transmission assets.

  6. A Transmission-Constrained Unit Commitment Method Chung-Li Tseng, Shmuel S. Oren,

    E-Print Network [OSTI]

    . A test problem involving more than 2500 transmission lines and 2200 buses is tested along with other test located in multiple areas that are interconnected via transmission lines. If the transmission constraints are not considered, the sched- ule obtained might cause some transmission lines to be overloaded. In this paper, we

  7. Economic Development from New Generation and Transmission in Wyoming and Colorado

    SciTech Connect (OSTI)

    Keyser, D.; Lantz, E.

    2013-03-01T23:59:59.000Z

    This report analyzes the potential economic impacts in Colorado and Wyoming of a 225 MW natural gas fired electricity generation facility and a 900 MW wind farm constructed in Wyoming as well as a 180 mile, 345 kV transmission line that runs from Wyoming to Colorado. This report and analysis is not a forecast, but rather an estimate of economic activity associated with a hypothetical scenario.

  8. Economic Development from New Generation and Transmission in Wyoming and Colorado (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-03-01T23:59:59.000Z

    This report analyzes the potential economic impacts in Colorado and Wyoming of a 225 MW natural gas fired electricity generation facility and a 900 MW wind farm constructed in Wyoming as well as a 180 mile, 345 kV transmission line that runs from Wyoming to Colorado. This report and analysis is not a forecast, but rather an estimate of economic activity associated with a hypothetical scenario.

  9. Plastic buckling in gas transmission line-pipes, cold formed from thermo-mechanically-controlled rolling of low-allow steel plates

    E-Print Network [OSTI]

    Vishal, Vaibhaw, 1978-

    2007-01-01T23:59:59.000Z

    The need for energy infrastructure has led to transportation of gases over long distances. The strength-grade of pipeline steels used for transportation of gases has been increasing to reduce the cost of the overall pipeline ...

  10. active power line: Topics by E-print Network

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

    Modeling, System Brest, Universit de 8 Reference: RGL 83-09 Subject: POWER TRANSMISSION LINES Engineering Websites Summary: Reference: RGL 83-09 Subject: POWER TRANSMISSION...

  11. 20120131 DOE Congestion Study Clean Line Comments 2012

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

    should encourage transmission developers to propose corridors to be 1 www.nrel.govwindresourceassessment.html 2 www.maps.platts.com Existing High Voltage Transmission Lines...

  12. Cost-Effectivenessof PhotovoltaicGenerationIn A Transmission-Constrained Load Area of An InterconnectedSystem

    E-Print Network [OSTI]

    Gross, George

    Abstract: Electric power systems of today are experiencing a difficulty of constrained transmission lines, present electric system networks are experiencing the difficulty of constrained transmission lines: Photovoltaic Generation, Power System Economics, Dispersed Generation, Transmission-Constrained Interconnected

  13. REMORA 3: The first instrumented fuel experiment with on-line gas composition measurement by acoustic sensor

    SciTech Connect (OSTI)

    Lambert, T.; Muller, E.; Federici, E. [CEA - Nuclear Energy Div., DEN - Fuel Research Dept. - Cadarache, F-13108 Saint-Paul-Lez-Durance (France); Rosenkrantz, E.; Ferrandis, J. Y. [CNRS - Univ. Montpellier 2, Southern Electronic Inst., UMR 5214, F-34095 Montpellier (France); Tiratay, X.; Silva, V. [CEA, Nuclear Energy Div., DEN, Nuclear Reactors and Facilities Dept., F-91191 Gif Sur Yvette (France); Machard, D. [EDF, SEPTEN, F-69628 Villeurbanne (France); Trillon, G. [AREVA-NP, F-69456 Lyon (France)

    2011-07-01T23:59:59.000Z

    With the aim to improve the knowledge of nuclear fuel behaviour, the development of advanced instrumentation used during in-pile experiments in Material Testing Reactor (MTR) is necessary. To obtain data on high Burn-Up MOX fuel performance under transient operating conditions, especially in order to differentiate between the kinetics of fission gas and helium releases and to acquire data on the degradation of the fuel conductivity, a highly instrumented in-pile experiment called REMORA 3 has been conducted by CEA and IES (Southern Electronic Inst. - CNRS - Montpellier 2 Univ.). A rodlet extracted from a fuel rod base irradiated for five cycles in a French EDF commercial PWR has been re-instrumented with a fuel centerline thermocouple, a pressure transducer and an advanced acoustic sensor. This latter, patented by CEA and IES, is 1 used in addition to pressure measurement to determine the composition of the gases located in the free volume and the molar fractions of fission gas and helium. This instrumented fuel rodlet has been re-irradiated in a specific rig, GRIFFONOS, located in the periphery of the OSIRIS experimental reactor core at CEA Saclay. First of all, an important design stage and test phases have been performed before the irradiation in order to optimize the response and the accuracy of the sensors: - To control the influence of the temperature on the acoustic sensor behaviour, a thermal mock-up has been built. - To determine the temperature of the gas located in the acoustic cavity as a function of the coolant temperature, and the average temperature of the gases located in the rodlet free volume as a function of the linear heat rate, thermal calculations have been achieved. The former temperature is necessary to calculate the molar fractions of the gases and the latter is used to calculate the total amount of released gas from the internal rod pressure measurements. - At the end of the instrumented rod manufacturing, specific internal free volume and pressure measurements have been carried out. Preliminary calculations of the REMORA 3 experiments have been performed from these measurements, with the aim to determine free volume evolution as a function of linear heat rate history. - A tracer gas has been added to the filling gas in order to optimize the accuracy of the helium balance at the time of the post irradiation examination. The two phases of the REMORA 3 irradiation have been achieved at the end of 2010 in the OSIRIS reactor. Slight acoustic signal degradation, observed during the test under high neutron and gamma flux, has led to an efficiency optimization of the signal processing. The instrumentation ran smoothly and allowed to reach all the experimental objectives. After non destructive examination performed in the Osiris reactor pool, typically gamma spectrometry and neutron radiography, the instrumented rod and the device have been disassembled. Then the instrumented rod has been transported to the LECA facility in Cadarache Centre for post irradiation examination. The internal pressure and volume of the rodlet as well as precise gas composition measurements will be known after puncturing step performed in a hot cell of this facility. That will allow us to qualify the in-pile measurements and to finalize the data which will be used for the validation of the fuel behaviour computer codes. (authors)

  14. TRIBAND BRANCH LINE COUPLER USING DOUBLE-LORENTZ

    E-Print Network [OSTI]

    Nam, Sangwook

    TRIBAND BRANCH LINE COUPLER USING DOUBLE-LORENTZ TRANSMISSION LINES Hanseung Lee and Sangwook Nam) transmission lines (TL) provides two additional degrees of freedom in realizing triband microwave devices-Lorentz; transmission lines; triband; directional couplers 1. INTRODUCTION The concept of artificial TLs having

  15. Transmission INTRODUCTION

    E-Print Network [OSTI]

    , to a significant degree, on a well-functioning wholesale power market. The transmission system is integral the consequences of a poorly designed wholesale power market, and the Council does not want to see those Regulatory Commission began taking actions to further facilitate competition in wholesale power supply. Today

  16. EMBEDDED PROTOSTARS IN THE DUST, ICE, AND GAS IN TIME (DIGIT) HERSCHEL KEY PROGRAM: CONTINUUM SEDs, AND AN INVENTORY OF CHARACTERISTIC FAR-INFRARED LINES FROM PACS SPECTROSCOPY

    SciTech Connect (OSTI)

    Green, Joel D.; Evans, Neal J. II; Rascati, Michelle R. [Department of Astronomy, University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, TX 78712-1205 (United States); Jorgensen, Jes K.; Dionatos, Odysseas; Lindberg, Johan E. [Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen (Denmark); Herczeg, Gregory J. [Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871 (China); Kristensen, Lars E.; Yildiz, Umut A.; Van Kempen, Tim A. [Leiden Observatory, Leiden University, P.O. Box 9513, 2300-RA Leiden (Netherlands); Lee, Jeong-Eun [Department of Astronomy and Space Science, Kyung Hee University, Gyeonggi 446-701 (Korea, Republic of); Salyk, Colette [National Optical Astronomy Observatory, 950 North Cherry Avenue, Tucson, AZ 85719 (United States); Meeus, Gwendolyn [Dpt. Fisica Teorica, Universidad Autonoma de Madrid, Campus Cantoblanco, E-28049 Madrid (Spain); Bouwman, Jeroen [Max Planck Institute for Astronomy, D-69117 Heidelberg (Germany); Visser, Ruud; Bergin, Edwin A. [Department of Astronomy, University of Michigan, 500 Church Street, Ann Arbor, MI 48109-1042 (United States); Van Dishoeck, Ewine F.; Karska, Agata; Fedele, Davide [Max-Planck Institute for Extraterrestrial Physics, Postfach 1312, D-85741 Garching (Germany); Dunham, Michael M., E-mail: joel@astro.as.utexas.edu [Department of Astronomy, Yale University, New Haven, CT 06511 (United States); Collaboration: DIGIT Team1

    2013-06-20T23:59:59.000Z

    We present 50-210 {mu}m spectral scans of 30 Class 0/I protostellar sources, obtained with Herschel-PACS, and 0.5-1000 {mu}m spectral energy distributions, as part of the Dust, Ice, and Gas in Time Key Program. Some sources exhibit up to 75 H{sub 2}O lines ranging in excitation energy from 100 to 2000 K, 12 transitions of OH, and CO rotational lines ranging from J = 14 {yields} 13 up to J = 40 {yields} 39. [O I] is detected in all but one source in the entire sample; among the sources with detectable [O I] are two very low luminosity objects. The mean 63/145 {mu}m [O I] flux ratio is 17.2 {+-} 9.2. The [O I] 63 {mu}m line correlates with L{sub bol}, but not with the time-averaged outflow rate derived from low-J CO maps. [C II] emission is in general not local to the source. The sample L{sub bol} increased by 1.25 (1.06) and T{sub bol} decreased to 0.96 (0.96) of mean (median) values with the inclusion of the Herschel data. Most CO rotational diagrams are characterized by two optically thin components ( = (0.70 {+-} 1.12) x 10{sup 49} total particles). N{sub CO} correlates strongly with L{sub bol}, but neither T{sub rot} nor N{sub CO}(warm)/N{sub CO}(hot) correlates with L{sub bol}, suggesting that the total excited gas is related to the current source luminosity, but that the excitation is primarily determined by the physics of the interaction (e.g., UV-heating/shocks). Rotational temperatures for H{sub 2}O ( = 194 +/- 85 K) and OH ( = 183 +/- 117 K) are generally lower than for CO, and much of the scatter in the observations about the best fit is attributed to differences in excitation conditions and optical depths among the detected lines.

  17. Methane Gas Utilization Project from Landfill at Ellery (NY)

    SciTech Connect (OSTI)

    Pantelis K. Panteli

    2012-01-10T23:59:59.000Z

    Landfill Gas to Electric Energy Generation and Transmission at Chautauqua County Landfill, Town of Ellery, New York. The goal of this project was to create a practical method with which the energy, of the landfill gas produced by the decomposing waste at the Chautauqua County Landfill, could be utilized. This goal was accomplished with the construction of a landfill gas to electric energy plant (originally 6.4MW and now 9.6MW) and the construction of an inter-connection power-line, from the power-plant to the nearest (5.5 miles) power-grid point.

  18. Effect of asphaltene deposition on the internal corrosion in the oil and gas industry

    SciTech Connect (OSTI)

    Palacios T, C.A. [CORPOVEN S.A., Puerto La Cruz (Venezuela). Gerencia de Ingenieria de Petroleo; Morales, J.L.; Viloria, A. [INTEVEP, S.A., Los Teques (Venezuela). Gerencia de Tecnologia de Materiales

    1997-08-01T23:59:59.000Z

    Crude oil from Norte de Monagas field, in Venezuela, contains large amounts of asphaltenes. Some of them are very unstable with a tendency to precipitate. Because liquid is carried over from the separation process in the flow stations, asphaltenes are also present in the gas gathering and transmission lines, precipitating on the inner wall of pipelines. The gas gathering and transmission lines contain gas with high partial pressures of CO{sub 2}, some H{sub 2}S and are water saturated; therefore, inhibitors are used to control internal corrosion. There is uncertainty on how inhibitors perform in the presence of asphaltene deposition. The purpose of this paper is to describe the causes that enhance asphaltene deposition in gas pipelines and present some results from an ongoing research project carried out by the Venezuelan Oil Companies.

  19. Transmission Investment: A Primer

    SciTech Connect (OSTI)

    McGarvey, Joe

    2006-10-15T23:59:59.000Z

    This primer highlights recent trends in transmission investment, summarizes the division of jurisdictional authority over transmission, and presents four alternative models for transmission ownership. (author)

  20. Power line detection system

    DOE Patents [OSTI]

    Latorre, V.R.; Watwood, D.B.

    1994-09-27T23:59:59.000Z

    A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard. 4 figs.

  1. Power line detection system

    DOE Patents [OSTI]

    Latorre, Victor R. (Tracy, CA); Watwood, Donald B. (Tracy, CA)

    1994-01-01T23:59:59.000Z

    A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard.

  2. NWCC Transmission Case Study III

    SciTech Connect (OSTI)

    Terry Allison, Steve Wiese

    2000-03-01T23:59:59.000Z

    OAK-B135 Transmission System Improvements for Wind Energy Development in the Upper Midwest and Great Plains: Opportunities and Obstacles. This case study set out to ascertain the validity of three assumptions from the perspectives of stakeholders involved in wind energy and transmission issues in the Upper Midwest and Great Plains. The assumptions, and the stakeholders' reactions to each, are summarized below: Assumption 1--Transmission system improvements would provide significant benefits to the electricity network and its customers. Respondents acknowledge the potential for overall system benefits in the form of reduced line losses, improved grid stability and reliability, and enhanced ability to conduct spot market transactions. They also agree that these benefits relate to specific regional needs. However, there is disagreement over the extent of other benefits such as efficiency gains and cost savings from reduced line losses. Further, environmental and community interest groups point out that none of these benefits are realized without significant financial, environmental and social costs. Assumption 2--The benefits of transmission improvements would be helpful, but not confined, to wind power. All respondents agree that wind energy could benefit from transmission system improvements. But they also acknowledge, reluctantly, in the case of environmental stakeholders, that the benefits of an improved transmission system cannot be limited to environmentally preferable forms of generation. Some environmental and community advocate respondents also feel that transmission system improvement projects can be avoided altogether through energy conservation and efficiency measures, and by substituting wind energy for fossil generation. Assumption 3--Transmission alliances among stakeholders within and external to the wind community can provide benefits in the public interest. The fractured, multi-jurisdictional governance of the regional transmission system, and the distrust and diversity of perspectives among affected stakeholders, may make the formation of multi-stakeholder alliances necessary to accomplishing transmission goals. If the wind industry and utilities want to partner with environmental and community advocate groups in supporting a transmission project, they may have to convince these groups that the project would result in a net environmental benefit. The project proponents would have to make the case that the benefits of the additional wind energy will at least offset the emissions of any additional fossil generation made possible by the transmission project, as well as offset the environmental impact of the transmission project itself.

  3. Hydrogen Delivery Technologies and Systems- Pipeline Transmission of Hydrogen

    Broader source: Energy.gov [DOE]

    Hydrogen Delivery Technologies and Systems - Pipeline Transmission of Hydrogen. Design and operations standards and materials for hydrogen and natural gas pipelines.

  4. Microsoft Word - DOE RFI on Transmission Planning - PGE Comments...

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

    generation, procurement and transmission, and natural gas procurement, transportation and storage. PG&E serves approximately 5.2 million electricity distribution customers and...

  5. Williston to Stateline Transmission Line Project

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

    ND The Western Area Power Administration (Western), an agency of the Department of Energy (DOE), has prepared an environmental assessment (EA) on the proposed Williston to...

  6. Grand Coulee Transmission Line | 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, search OpenEI ReferenceJump to: navigation, searchGoodyear,GouldDakotaCoulee

  7. Southline Transmission Line | 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 YouKizildere IRaghuraji Agro Industries Pvt LtdShawangunk,Southeast Colorado Power Assn JumpPines,Southington,

  8. Grand Coulee Transmission Line Replacement Project

    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 AdministrationField8,Dist.NewofGeothermal Heat PumpJorgeAtlGrad.Employee,

  9. Transmission Workshop

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

    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 April 23,EnergyChicopeeTechnologyfact sheetTransferring the Wayne,TRANSMISSION WORKSHOP

  10. Electric Power Generation and Transmission (Iowa)

    Broader source: Energy.gov [DOE]

    Electric power generating facilities with a combined capacity greater than 25 MW, as well as associated transmission lines, may not be constructed or begin operation prior to the issuance of a...

  11. Tracking Progress Last updated 06/18/2014 Transmission Expansion 1

    E-Print Network [OSTI]

    issues certificates of public convenience and necessity (CPCNs) for transmission lines at 200 kilovolts of existing transmission lines are issued a notice of exempt construction (NOC) and are exempt from CPUC CEQA

  12. Microsoft PowerPoint - WAPA Transmission Developments in NM ...

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

    NM, CO, WY, KS, ND, UT, SD & ID Tasked with planning and financing of transmission lines within their respective states RETA has the additional requirement that 30% of...

  13. DOE/EA-1366; Environmental Assessment Santiam-Bethel Transmission...

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

    "Plans should designate sites of power generation and the location of electric transmission lines in areas intended to support desired levels of urban and rural development." The...

  14. Interstate Transmission Challenges for Renewable Energy: A Federalism...

    Open Energy Info (EERE)

    laws governing renewable energy; state and local laws governing the siting of electric transmission lines; the jurisdiction's relationship to a state or regional...

  15. Valve for gas centrifuges

    DOE Patents [OSTI]

    Hahs, C.A.; Rurbage, C.H.

    1982-03-17T23:59:59.000Z

    The invention is pneumatically operated valve assembly for simulatenously (1) closing gas-transfer lines connected to a gas centrifuge or the like and (2) establishing a recycle path between two on the lines so closed. The value assembly is especially designed to be compact, fast-acting, reliable, and comparatively inexpensive. It provides large reductions in capital costs for gas-centrifuge cascades.

  16. Plains and Eastern Clean Line Transmission Line: Federal Register...

    Energy Savers [EERE]

    3,500 megawatts primarily from renewable energy generation facilities in the Oklahoma and Texas Panhandle regions to load-serving entities in the Mid-South and Southeast...

  17. Proposed Project: Plains & Eastern Clean Line Transmission Line...

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

    approximately 3,500 MW primarily from renewable energy generation facilities in the Oklahoma Panhandle region to load-service entities in the Mid-South and Southeast via an...

  18. Plains & Eastern Clean Line Transmission Line - Part 2 Application...

    Energy Savers [EERE]

    15 Comment from Mr. Thorsen 051115 Comment from Mr. Melton 051315 Comment from Ms. Smith 051315 Comment from Ms. Gatrel 051715 Comment from Mr. Baker 051715 Comment from...

  19. Plains and Eastern Clean Line Transmission Line: Comment from Chantel |

    Energy Savers [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 directed offOCHCO2:Introduction toManagementOPAM5Parabolic TroughPhotoCell

  20. Plains and Eastern Clean Line Transmission Line: Comment from Marshall

    Energy Savers [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 directed offOCHCO2:Introduction toManagementOPAM5Parabolic TroughPhotoCell| Department of Energy||Hughes

  1. Plains & Eastern Clean Line Transmission Line - Part 2 Application:

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

    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 April 23, 2014, an OHA Administrative Judgea. PartSilicon-usedComments Received on the

  2. Plains and Eastern Clean Line Transmission Line: Federal Register Notice,

    Energy Savers [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 directed offOCHCO Overview OCHCO Overview OCHCO OCHCOControlGuide to aEnergy LivingSystemPilotVolume 80,

  3. Proposed Project: Plains & Eastern Clean Line Transmission Line |

    Office of Environmental Management (EM)

    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 1,006 492 742 33 1112011 Strategic2 OPAM615_CostNSAR - TProcuring SolarNo. 195 - Oct. 7, 2011 |

  4. Plains and Eastern Clean Line Transmission Line: Federal Register Notice,

    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 DataDepartment of Energy Your Density Isn'tOrigin of Contamination in235-1Department of Energy Photovoltaics atPROJECTDepartment||Volume

  5. Proposed Project: Plains & Eastern Clean Line Transmission Line |

    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 DataDepartment of Energy Your Density Isn'tOrigin of ContaminationHubs+ ReportEnergy NationalDepartment of EnergyNo.

  6. Underground gas storage in New York State: A historical perspective

    SciTech Connect (OSTI)

    Friedman, G.M.; Sarwar, G.; Bass, J.P. [Brooklyn College of the City Univ., Troy, NY (United States)] [and others

    1995-09-01T23:59:59.000Z

    New York State has a long history of underground gas storage activity that began with conversion of the Zoar gas field into a storage reservoir in 1916, the first in the United States. By 1961 another fourteen storage fields were developed and seven more were added between 1970 and 1991. All twenty-two operating storage reservoirs of New York were converted from depleted gas fields and are of low-deliverability, base-load type. Nineteen of these are in sandstone reservoirs of the Lower Silurian Medina Group and the Lower Devonian Oriskany Formation and three in limestone reservoirs are located in the gas producing areas of southwestern New York and are linked to the major interstate transmission lines. Recent developments in underground gas storage in New York involve mainly carbonate-reef and bedded salt-cavern storage facilities, one in Stuben County and the other in Cayuga County, are expected to begin operation by the 1996-1997 heating season.

  7. On-site profiling and speciation of polycyclic aromatic hydrocarbons at manufactured gas plant sites by a high temperature transfer line, membrane inlet probe coupled to a photoionization detector and gas chromatography/mass spectrometer

    SciTech Connect (OSTI)

    Thomas Considine; Albert Robbat Jr. [Tufts University, Medford, MA (United States). Chemistry Department, Center for Field Analytical Studies and Technology

    2008-02-15T23:59:59.000Z

    A new high temperature transfer line, membrane inlet probe (HTTL-MIP) coupled to a photoionization detector (PID) and gas chromatograph/mass spectrometer (GC/MS) was used to rapidly profile and speciate polycyclic aromatic hydrocarbons (PAH) in the subsurface. PID signals were in agreement with GC/MS results. Correlation coefficients of 0.92 and 0.99 were obtained for discrete and composite samples collected from the same exact location. Continuous probe advancement with PID detection found coal tar, a dense nonaqueous phase liquid, in soil channels and saturated media. When samples were collected conventionally, split, solvent extracted, and analyzed in the field and confirmation laboratory, GC/MS measurement precision and accuracy were indistinguishable; despite the fact the field laboratory produced data five times faster than the laboratory using standard EPA methods. No false positive/negatives were found. Based on these findings, increased confidence in site conceptual models should be obtained, since PID response indicated total PAH presence/absence in 'real-time', while GC/MS provided information as to which PAH was present and at what concentration. Incorporation of this tool into a dynamic workplan will provide more data at less cost enabling environmental scientists, engineers, and regulators to better understand coal tar migration and its impact on human health and the environment. 24 refs., 3 figs., 4 tabs.

  8. Method yields safety factor for in-line inspection data

    SciTech Connect (OSTI)

    Colquhon, I.; Menendez, A. [Transportadora de Gas del Norte, Buenos Aires (Argentina); Dovico, R. [Arcan Ingeneria y Construcciones, Buenos Aires (Argentina)

    1998-09-21T23:59:59.000Z

    A method for dealing with uncertainties in in-line inspection (ILI) information has been applied to a segment of corroded line in the gas-transmission system of Transportadora de Gas del Norte (TGN) in Argentina. Results of applying the method indicate that the safety factor for ILI data is equivalent to that provided by a hydrostatic test. The methods consist of combining the mean and dispersion of corrosion-defect depth (d) and length (L) data and simulating the effect of these variations on calculations for failure pressure (PF), using Monte Carlo propagation. A maintenance philosophy is discussed from the perspective of likelihood of failures and of information available to support maintenance decisions.

  9. Sixth Northwest Conservation and Electric Power Plan Chapter 7: Transmission

    E-Print Network [OSTI]

    Sixth Northwest Conservation and Electric Power Plan Chapter 7: Transmission Summary of Key, both in operating the existing system and in planning for new major transmission lines. Since then transmission system is an integral part of the regional power system. It functions roughly like the highway

  10. EIS-0390: Eastern Plains Transmission Project, Colorado and Kansas.

    Broader source: Energy.gov [DOE]

    This EIS is for Western Area Power Administration's proposal to participate with Tri-State Generation and Transmission Association, Inc. (Tri-State), to construct the proposed Eastern Plains Transmission Project (Project). Western’s participation with Tri-State would be in exchange for capacity rights on the transmission lines.

  11. Kern River natural gas pipeline commissioned

    SciTech Connect (OSTI)

    Not Available

    1992-03-16T23:59:59.000Z

    Kern River Gas Transmission Co., the biggest gas pipeline built in the U.S. in the last decade, has been commissioned. The system was dedicated Mar. 6 at a meter station in an oil field near Bakersfield, Calif. The $984 million, 904 mile pipeline is a 50-50 venture of Tenneco Inc. and Williams Cos. Planning for the project began about 7 years ago. Current operating capacity of the line is 700 MMcfd. Plans call for boosting capacity by 452 MMcfd with added compression. Most of the gas will go to thermal enhanced oil recovery projects in heavy oil fields in California. This paper reports that other customers include utilities, independent electrical power producers, and cogeneration projects.

  12. Observation of CH4 and other Non-CO2 Green House Gas Emissions from California

    E-Print Network [OSTI]

    Fischer, Marc L.

    2009-01-01T23:59:59.000Z

    of the sources (e.g. , landfills, natural gas use, petroleumfrom landfills, livestock, natural gas transmission and use,sources sectors: landfills (LF), livestock (LS), natural gas

  13. Authorization of Line Extension (Nebraska)

    Broader source: Energy.gov [DOE]

    Any entity permitted to establish an electric light and power plant, and/or transmission or distribution lines within a city, village, or public electric light and power district, may also extend...

  14. Survey of Transmission Cost Allocation Methodologies for Regional Transmission Organizations

    SciTech Connect (OSTI)

    Fink, S.; Porter, K.; Mudd, C.; Rogers, J.

    2011-02-01T23:59:59.000Z

    The report presents transmission cost allocation methodologies for reliability transmission projects, generation interconnection, and economic transmission projects for all Regional Transmission Organizations.

  15. Gas Pipeline Securities (Indiana)

    Broader source: Energy.gov [DOE]

    This statute establishes that entities engaged in the transmission of gas by pipelines are not required to obtain the consent of the Utility Regulatory Commission for issuance of stocks,...

  16. Merchant transmission investment

    E-Print Network [OSTI]

    Joskow, Paul L.

    2003-01-01T23:59:59.000Z

    We examine the performance attributes of a merchant transmission investment framework that relies on "market driven" transmission investment to provide the infrastructure to support competitive wholesale markets for ...

  17. Natural Gas Infrastructure Implications of Increased Demand from...

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

    the potential infrastructure needs of the U.S. interstate natural gas pipeline transmission system across a range of future natural gas demand scenarios that drive increased...

  18. Presented on the European Wind Energy Conference & Exhibition, Brussels, Belgium, March, 31 Network of offshore wind farms connected by gas insulated

    E-Print Network [OSTI]

    Heinemann, Detlev

    ­April, 3 rd 2008. Network of offshore wind farms connected by gas insulated transmission lines? Anja Summary The offshore wind power industry faces two major challenges: the connection of wind farms to the high voltage grid onshore and a smart grid integration of this offshore generated wind power. In terms

  19. The effect of the operation modes of a gas discharge low-pressure amalgam lamp on the intensity of generation of 185 nm UV vacuum radiation

    SciTech Connect (OSTI)

    Vasilyak, L. M., E-mail: vasilyak@ihed.ras.ru [Russian Academy of Sciences, Joint Institute of High Temperatures (Russian Federation); Drozdov, L. A., E-mail: lit@npo.lit.ru; Kostyuchenko, S. V.; Sokolov, D. V. [ZAO LIT (Russian Federation); Kudryavtsev, N. N.; Sobur, D. A., E-mail: soburda@gmail.com [Moscow Institute for Physics and Technology (Russian Federation)

    2011-12-15T23:59:59.000Z

    The effect of the discharge current, mercury vapor pressure, and the inert gas pressure on the intensity and efficiency of the 185 nm line generation are considered. The spectra of the UV radiation (vacuum ultraviolet) transmission by protective coatings from the oxides of rare earth metals and aluminum are investigated.

  20. IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 19, NO. 2, MAY 2004 889 Congestion Management and Transmission Rights in

    E-Print Network [OSTI]

    Dixon, Juan

    and Transmission Rights in Centralized Electric Markets Roberto Méndez and Hugh Rudnick, Fellow, IEEE Abstract implementation unattractive. Index Terms--Congestion management, electric markets, nodal pricing, transmission by congestions in transmission lines. These rights can have physical or financial attributes

  1. Natural Gas Transmission and Distribution Module

    Gasoline and Diesel Fuel Update (EIA)

    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 for On-Highway4,1,50022,3,,,,6,1,9,1,50022,3,,,,6,1,Decade1 Source: Office of(Millionthrough 1996)200971 andEIA projects

  2. Should we transport coal, gas, or electricity: cost, efficiency, and environmental implications

    SciTech Connect (OSTI)

    Joule A. Bergerson; Lester B. Lave [Carnegie Mellon University, Pittsburgh, PA (US)

    2005-08-15T23:59:59.000Z

    The authors examine the life cycle costs, environmental discharges, and deaths of moving coal via rail, coal to synthetic natural gas via pipeline, and electricity via wire from the Powder River Basin (PRB) in Wyoming to Texas. Which method has least social cost depends on how much additional investment in rail line, transmission, or pipeline infrastructure is required, as well as how much and how far energy is transported. If the existing rail lines have unused capacity, coal by rail is the cheapest method (up to 200 miles of additional track could be added). If no infrastructure exists, greater distances and larger amounts of energy favor coal by rail and gasified coal by pipeline over electricity transmission. For 1,000 miles and 9 gigawatts of power, a gas pipeline is cheapest, has less environmental discharges, uses less land, and is least obtrusive. 28 refs., 4 figs., 3 tabs.

  3. TRANSMISSION EXPANSION PLANNING WITH RE-DESIGN A Greedy Randomized Adaptive Search Procedure

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    for the managing entity to change the electrical power system, adding new transmission lines and power generatorsTRANSMISSION EXPANSION PLANNING WITH RE-DESIGN A Greedy Randomized Adaptive Search Procedure Rosa: TRANSMISSION EXPANSION PLANNING: NETWORK DESIGN: GRASP. Abstract: Transmission expansion planning with re

  4. Installation and Final Testing of an On-Line, Multi-Spectrometer Fission Product Monitoring System (FPMS) to Support Advanced Gas Reactor (AGR) Fuel Testing and Qualification in the Advanced Test Reactor

    SciTech Connect (OSTI)

    J. K. Hartwell; D. M. Scates; M. W. Drigert; J. B. Walter

    2006-10-01T23:59:59.000Z

    The US Department of Energy (DOE) is initiating tests of reactor fuel for use in an Advanced Gas Reactor (AGR). The AGR will use helium coolant, a low-power-density ceramic core, and coated-particle fuel. A series of eight (8) fuel irradiation tests are planned for the Idaho National Laboratory’s (INL’s) Advanced Test Reactor (ATR). One important measure of fuel performance in these tests is quantification of the fission gas releases over the nominal 2-year duration of each irradiation experiment. This test objective will be met using the AGR Fission Product Monitoring System (FPMS) which includes seven (7) on-line detection stations viewing each of the six test capsule effluent lines (plus one spare). Each station incorporates both a heavily-shielded high-purity germanium (HPGe) gamma-ray spectrometer for quantification of the isotopic releases, and a NaI(Tl) scintillation detector to monitor the total count rate and identify the timing of the releases. The AGR-1 experiment will begin irradiation after October 1, 2006. To support this experiment, the FPMS has been completely assembled, tested, and calibrated in a laboratory at the INL, and then reassembled and tested in its final location in the ATR reactor basement. This paper presents the details of the equipment performance, the control and acquisition software, the test plan for the irradiation monitoring, and the installation in the ATR basement. Preliminary on-line data may be available by the Conference date.

  5. Valve for gas centrifuges

    DOE Patents [OSTI]

    Hahs, Charles A. (Oak Ridge, TN); Burbage, Charles H. (Oak Ridge, TN)

    1984-01-01T23:59:59.000Z

    The invention is a pneumatically operated valve assembly for simultaneously (1) closing gas-transfer lines connected to a gas centrifuge or the like and (2) establishing a recycle path between two of the lines so closed. The valve assembly is especially designed to be compact, fast-acting, reliable, and comparatively inexpensive. It provides large reductions in capital costs for gas-centrifuge cascades.

  6. Treanmission Line Fault Location using Interoperability and Integration of Data and Model 

    E-Print Network [OSTI]

    Dutta, Papiya

    2014-01-10T23:59:59.000Z

    , classify and locate transmission line faults using synchronous samples of voltages and currents captured during fault transients from both ends of the transmission line of interest. The method is tested for several faults simulated on IEEE 118 bus test...

  7. Microsoft Word - 20140718 Nat Gas Memo - FINAL

    Office of Environmental Management (EM)

    Policy and Systems Analysis Staff, U.S. Department of Energy Re: Stakeholder Meeting on Natural Gas Transmission, Storage and Distribution 1. Introduction On January 9, 2014,...

  8. Transmission Commercial Project Integration

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

    Improvement (CBPI) Customer Forum Energy Imbalance Market Generator Interconnection Reform Implementation Network Integration Transmission Service (NT Service) Network Open...

  9. Anisotropic elastic scattering of stripe/line-shaped scatters to two-dimensional electron gas: Model and illustrations in a nonpolar AlGaN/GaN hetero-junction

    SciTech Connect (OSTI)

    Zhang, Jinfeng, E-mail: jfzhang@xidian.edu.cn; Li, Yao; Yan, Ran; Nie, Yuhu; Zhang, Jincheng; Hao, Yue, E-mail: yhao@xidian.edu.cn [State Key Discipline Laboratory of Wide Bandgap Semiconductor Technologies, School of Microelectronics, Xidian University, Xi'an 710071 (China); Liu, Guipeng [Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083 (China)

    2014-09-07T23:59:59.000Z

    In a semiconductor hetero-junction, the stripe/line-shaped scatters located at the hetero-interface lead to the anisotropic transport of two-dimensional electron gas (2DEG). The elastic scattering of infinitely long and uniform stripe/line-shaped scatters to 2DEG is theoretically investigated based on a general theory of anisotropic 2DEG transport [J. Schliemann and D. Loss, Phys. Rev. B 68(16), 165311 (2003)], and the resulting 2DEG mobility along the applied electrical field is modeled to be a function of the angle between the field and the scatters. The anisotropy of the scattering and the mobility originate in essence from that the stripe/line-shaped scatters act upon the injecting two-dimensional wave vector by changing only its component perpendicular to the scatters. Three related scattering mechanisms in a nonpolar AlGaN/GaN hetero-junction are discussed as illustrations, including the striated morphology caused interface roughness scattering, and the polarization induced line charge dipole scattering and the misfit dislocation scattering at the AlGaN/GaN interface. Different anisotropic behaviors of the mobility limited by these scattering mechanisms are demonstrated, but analysis shows that all of them are determined by the combined effects of the anisotropic bare scattering potential and the anisotropic dielectric response of the 2DEG.

  10. Early-Time Behavior of the Ground Transient Resistance of Overhead Lines

    E-Print Network [OSTI]

    Loyka, Sergey

    contribution to the transient response of overhead transmission lines. While the late-time behaviour. This expression can be used for the transient analysis of transmission lines in a computationally efficient way of overhead transmission lines to external disturbances like lightning discharges [1, 2]. This impedance

  11. EIA - Natural Gas Pipeline Network - Natural Gas Transmission Path Diagram

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    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 1,006 492 742 33 111 1,613 122 40Coal Stocks at1,066,688 760,877 951,322Development &Region/State

  12. Automated manual transmission controller

    DOE Patents [OSTI]

    Lawrie, Robert E. (Whitmore Lake, MI); Reed, Jr., Richard G. (Royal Oak, MI); Bernier, David R. (Rochester Hills, MI)

    1999-12-28T23:59:59.000Z

    A powertrain system for a hybrid vehicle. The hybrid vehicle includes a heat engine, such as a diesel engine, and an electric machine, which operates as both an electric motor and an alternator, to power the vehicle. The hybrid vehicle also includes a manual-style transmission configured to operate as an automatic transmission from the perspective of the driver. The engine and the electric machine drive an input shaft which in turn drives an output shaft of the transmission. In addition to driving the transmission, the electric machine regulates the speed of the input shaft in order to synchronize the input shaft during either an upshift or downshift of the transmission by either decreasing or increasing the speed of the input shaft. When decreasing the speed of the input shaft, the electric motor functions as an alternator to produce electrical energy which may be stored by a storage device. Operation of the transmission is controlled by a transmission controller which receives input signals and generates output signals to control shift and clutch motors to effect smooth launch, upshift shifts, and downshifts of the transmission, so that the transmission functions substantially as an automatic transmission from the perspective of the driver, while internally substantially functioning as a manual transmission.

  13. HVDC transmission: a path to the future?

    SciTech Connect (OSTI)

    Teichler, Stephen L.; Levitine, Ilia

    2010-05-15T23:59:59.000Z

    Direct current transmission has been the poor stepchild of the U.S. electric industry. Although early-generation plants were based on DC technology, it was soon deemed uneconomical to transmit electricity over long distances, but it now appears poised for a change. Both the increasing technical potential and changing economics of HVDC lines promise a growing role in the future. (author)

  14. Gas breakdown driven by L band short-pulse high-power microwave

    SciTech Connect (OSTI)

    Yang Yiming; Yuan Chengwei; Qian Baoliang [College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073 (China)

    2012-12-15T23:59:59.000Z

    High power microwave (HPM) driven gas breakdown is a major factor in limiting the radiation and transmission of HPM. A method that HPM driven gas breakdown could be obtained by changing the aperture of horn antenna is studied in this paper. Changing the effective aperture of horn antenna can adjust the electric field in near field zone, leading to gas breakdown. With this method, measurements of air and SF{sub 6} breakdowns are carried out on a magnetically insulated transmission-line oscillators, which is capable of generating HPM with pulse duration of 30 ns, and frequency of 1.74 GHz. The typical breakdown waveforms of air and SF{sub 6} are presented. Besides, the breakdown field strengths of the two gases are derived at different pressures. It is found that the effects of air and SF{sub 6} breakdown on the transmission of HPM are different: air breakdown mainly shortens the pulse width of HPM while SF{sub 6} breakdown mainly reduces the peak output power of HPM. The electric field threshold of SF{sub 6} is about 2.4 times larger than that of air. These differences suggest that gas properties have a great effect on the transmission characteristic of HPM in gases.

  15. Natural disasters and the gas pipeline system. Topical report, August 1994-June 1995

    SciTech Connect (OSTI)

    Atallah, S.; Saxena, S.; Martin, S.B.; Willowby, A.B.; Alger, R.

    1996-11-15T23:59:59.000Z

    Episodic descriptions are provided of the effect of the Loma Prieta earthquake (1989) on the gas pipeline systems of Pacific Gas & Electric Company and the City of Palo Alto and of the Northridge earthquake (1994) on Southern California Gas` pipeline system. The emergency response plans and activities of South Carolina Electric & Gas Company during hurricane Hugo (1989) and of City Gas Company of Florida and other small gas companies during hurricane Andrew (1992) are also reviewed. Descriptions of the great Flood of 1993 and its effects on the operations of Iowa-Illinois Gas & Electric Company and Laclede Gas Company and of the San Jacinto River Floods on the transmission lines of Valero Gas Co. are also provided. Local and federal regulatory requirements, and the current practices by the gas industry for dealing with natural disasters, such as through preventive measures (e.g., strapping of water heaters, excess flow valves), and the tracking of weather-related events are described. The important role that preplanning and coordination with the local emergency response bodies and other gas utilities plays during a natural disaster is examined.

  16. ac power lines: Topics by E-print Network

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

    A FUNDAMENTAL characteristic construction of both generation facilities and new transmission lines, so better utilization of existing power Lehn, Peter W. 5 A new high performance...

  17. BPA, Transmission, I-5 Corridor Reinforcement Project factsheet...

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

    transmission line route. The alternatives vary in length and amount of existing and new right-of-way they require. We will also consider a "no action" alternative, that is, not...

  18. Peoples Gas- Commercial & Industrial Prescriptive Rebate Program

    Broader source: Energy.gov [DOE]

    The Chicagoland Natural Gas Savings Program is funded by customers of Peoples Gas, through a line item on the bill called the Enhanced Efficiency Program. The Program is guided by Peoples Gas, the...

  19. Intrinsic AGN Absorption Lines

    E-Print Network [OSTI]

    Fred Hamann

    2000-06-12T23:59:59.000Z

    Strong absorption lines are common in rest-frame UV spectra of AGNs due to a variety of resonant transitions, for example the HI Lyman series lines (most notably Ly-alpha 1216) and high-ionization doublets like CIV 1549,1551. The lines are called ``intrinsic'' if the absorbing gas is physically related to the AGN, e.g. if the absorber resides broadly within the radius of the AGN's surrounding ``host'' galaxy. Intrinsic absorption lines are thus valuable probes of the kinematics, physical conditions and elemental abundances in the gas near AGNs. Studies of intrinsic absorbers have historically emphasized the broad absorption lines (BALs) in quasars. Today we recognize a wider variety of intrinsic lines in a wider range of objects. For example, we now know that Seyfert 1 galaxies (the less luminous cousins of quasars) have intrinsic absorption. We also realize that intrinsic lines can form in a range of AGN environments --- from the dynamic inner regions like the BALs, to the more quiescent outer host galaxies >10 kpc away. This article provides a brief introduction to current observational and theoretical work on intrinsic AGN absorbers.

  20. Transmission and Storage Operations

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

    Reliability Engineer November 12, 2014 Agenda * DTE Gas Snapshot * NOx & CO - Combustion stability * Methane - Packing - Blowdowns * Capture vs Flare 2 SNAPSHOT * DTE Gas -...