Sample records for rotor swept area

  1. Lean implementation across value stream in main rotor blade area

    E-Print Network [OSTI]

    Phoenix, Casey J. (Casey John)

    2007-01-01T23:59:59.000Z

    The primary goal for this project was to help expand the existing capability of Sikorsky's main rotor blade business from raw material (titanium) through final assembly. The project helped to facilitate the ongoing lean ...

  2. Preliminary Structural Design Conceptualization for Composite Rotor for Verdant Power Water Current: Cooperative Research and Development Final Report, CRADA Number CRD-08-296

    SciTech Connect (OSTI)

    Hughes, S.

    2011-02-01T23:59:59.000Z

    The primary thrust of the CRADA will be to develop a new rotor design that will allow higher current flows (>4m/s), greater swept area (6-11m), and in the process, will maximize performance and energy capture.

  3. Separators for flywheel rotors

    DOE Patents [OSTI]

    Bender, D.A.; Kuklo, T.C.

    1998-07-07T23:59:59.000Z

    A separator forms a connection between the rotors of a concentric rotor assembly. This separator allows for the relatively free expansion of outer rotors away from inner rotors while providing a connection between the rotors that is strong enough to prevent disassembly. The rotor assembly includes at least two rotors referred to as inner and outer flywheel rings or rotors. This combination of inner flywheel ring, separator, and outer flywheel ring may be nested to include an arbitrary number of concentric rings. The separator may be a segmented or continuous ring that abuts the ends of the inner rotor and the inner bore of the outer rotor. It is supported against centrifugal loads by the outer rotor and is affixed to the outer rotor. The separator is allowed to slide with respect to the inner rotor. It is made of a material that has a modulus of elasticity that is lower than that of the rotors. 10 figs.

  4. Separators for flywheel rotors

    DOE Patents [OSTI]

    Bender, Donald A. (Dublin, CA); Kuklo, Thomas C. (Oakdale, CA)

    1998-01-01T23:59:59.000Z

    A separator forms a connection between the rotors of a concentric rotor assembly. This separator allows for the relatively free expansion of outer rotors away from inner rotors while providing a connection between the rotors that is strong enough to prevent disassembly. The rotor assembly includes at least two rotors referred to as inner and outer flywheel rings or rotors. This combination of inner flywheel ring, separator, and outer flywheel ring may be nested to include an arbitrary number of concentric rings. The separator may be a segmented or continuous ring that abuts the ends of the inner rotor and the inner bore of the outer rotor. It is supported against centrifugal loads by the outer rotor and is affixed to the outer rotor. The separator is allowed to slide with respect to the inner rotor. It is made of a material that has a modulus of elasticity that is lower than that of the rotors.

  5. Preform spar cap for a wind turbine rotor blade

    DOE Patents [OSTI]

    Livingston, Jamie T. (Simpsonville, SC); Driver, Howard D. (Greer, SC); van Breugel, Sjef (Enschede, NL); Jenkins, Thomas B. (Cantonment, FL); Bakhuis, Jan Willem (Nijverdal, NL); Billen, Andrew J. (Daarlerveen, NL); Riahi, Amir (Pensacola, FL)

    2011-07-12T23:59:59.000Z

    A spar cap for a wind turbine rotor blade. The spar cap may include multiple preform components. The multiple preform components may be planar sheets having a swept shape with a first end and a second end. The multiple preform components may be joined by mating the first end of a first preform component to the second end of a next preform component, forming the spar cap.

  6. Sandia Energy - SMART Rotor Video

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

    SMART Rotor Video Home Stationary Power Energy Conversion Efficiency Wind Energy Resources Wind Energy Publications Online Abstracts and Reports SMART Rotor Video SMART Rotor...

  7. Receptivity Studies on a Swept-Wing Model

    E-Print Network [OSTI]

    Woodruff, Matthew Jeffery

    2012-07-16T23:59:59.000Z

    with the flight crew during flight operations. TEST AIRFOIL The Swept Wing In Flight Testing (SWIFT) model used for these series of tests is a 30? swept wing with a laminar flow airfoil custom designed at Texas A&M. The pressure minimum on the airfoil...

  8. Chaos in a rotor system supported by ball bearings

    E-Print Network [OSTI]

    Fisher, James Robert, 1979-

    2013-02-22T23:59:59.000Z

    to observing chaos in rotor systems. Further, there has been little work carried out in the area of chaos control, of which only a small portion has been applied to rotor systems. Originally, the goal of the research described in this paper was to control...

  9. Single Rotor Turbine

    DOE Patents [OSTI]

    Platts, David A. (Los Alamos, NM)

    2004-10-26T23:59:59.000Z

    A rotor for use in turbine applications has a centrifugal compressor having axially disposed spaced apart fins forming passages and an axial turbine having hollow turbine blades interleaved with the fins and through which fluid from the centrifugal compressor flows.

  10. Impulse radar with swept range gate

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1998-09-08T23:59:59.000Z

    A radar range finder and hidden object locator is based on ultra-wide band radar with a high resolution swept range gate. The device generates an equivalent time amplitude scan with a typical range of 4 inches to 20 feet, and an analog range resolution as limited by a jitter of on the order of 0.01 inches. A differential sampling receiver is employed to effectively eliminate ringing and other aberrations induced in the receiver by the near proximity of the transmit antenna (10), so a background subtraction is not needed, simplifying the circuitry while improving performance. Techniques are used to reduce clutter in the receive signal, such as decoupling the receive (24) and transmit cavities (22) by placing a space between them, using conductive or radiative damping elements on the cavities, and using terminating plates on the sides of the openings. The antennas can be arranged in a side-by-side parallel spaced apart configuration or in a coplanar opposed configuration which significantly reduces main bang coupling.

  11. Impulse radar with swept range gate

    DOE Patents [OSTI]

    McEwan, T.E.

    1998-09-08T23:59:59.000Z

    A radar range finder and hidden object locator is based on ultra-wide band radar with a high resolution swept range gate. The device generates an equivalent time amplitude scan with a typical range of 4 inches to 20 feet, and an analog range resolution as limited by a jitter of on the order of 0.01 inches. A differential sampling receiver is employed to effectively eliminate ringing and other aberrations induced in the receiver by the near proximity of the transmit antenna, so a background subtraction is not needed, simplifying the circuitry while improving performance. Techniques are used to reduce clutter in the receive signal, such as decoupling the receive and transmit cavities by placing a space between them, using conductive or radiative damping elements on the cavities, and using terminating plates on the sides of the openings. The antennas can be arranged in a side-by-side parallel spaced apart configuration or in a coplanar opposed configuration which significantly reduces main bang coupling. 25 figs.

  12. Single rotor turbine engine

    DOE Patents [OSTI]

    Platts, David A. (Los Alamos, NM)

    2002-01-01T23:59:59.000Z

    There has been invented a turbine engine with a single rotor which cools the engine, functions as a radial compressor, pushes air through the engine to the ignition point, and acts as an axial turbine for powering the compressor. The invention engine is designed to use a simple scheme of conventional passage shapes to provide both a radial and axial flow pattern through the single rotor, thereby allowing the radial intake air flow to cool the turbine blades and turbine exhaust gases in an axial flow to be used for energy transfer. In an alternative embodiment, an electric generator is incorporated in the engine to specifically adapt the invention for power generation. Magnets are embedded in the exhaust face of the single rotor proximate to a ring of stationary magnetic cores with windings to provide for the generation of electricity. In this alternative embodiment, the turbine is a radial inflow turbine rather than an axial turbine as used in the first embodiment. Radial inflow passages of conventional design are interleaved with radial compressor passages to allow the intake air to cool the turbine blades.

  13. Polygonal shaft hole rotor

    DOE Patents [OSTI]

    Hussey, John H. (St. Louis, MO); Rose, John Scott (Alton, IL); Meystrik, Jeffrey J. (Webster Groves, MO); White, Kent Lee (Maryland Heights, MO)

    2001-01-23T23:59:59.000Z

    A laminated rotor for an induction motor has a plurality of ferro-magnetic laminations mounted axially on a rotor shaft. Each of the plurality of laminations has a central aperture in the shape of a polygon with sides of equal length. The laminations are alternatingly rotated 180.degree. from one another so that the straight sides of the polygon shaped apertures are misaligned. As a circular rotor shaft is press fit into a stack of laminations, the point of maximum interference occurs at the midpoints of the sides of the polygon (i.e., at the smallest radius of the central apertures of the laminations). Because the laminates are alternatingly rotated, the laminate material at the points of maximum interference yields relatively easily into the vertices (i.e., the greatest radius of the central aperture) of the polygonal central aperture of the next lamination as the shaft is inserted into the stack of laminations. Because of this yielding process, the amount of force required to insert the shaft is reduced, and a tighter fit is achieved.

  14. Homopolar motor with dual rotors

    DOE Patents [OSTI]

    Hsu, J.S.

    1998-12-01T23:59:59.000Z

    A homopolar motor has a field rotor mounted on a frame for rotation in a first rotational direction and for producing an electromagnetic field, and an armature rotor mounted for rotation on said frame within said electromagnetic field and in a second rotational direction counter to said first rotational direction of said field rotor. The two rotors are coupled through a 1:1 gearing mechanism, so as to travel at the same speed but in opposite directions. This doubles the output voltage and output power, as compared to a motor in which only the armature is rotated. Several embodiments are disclosed. 7 figs.

  15. Receptivity Studies on a Swept-Wing Model 

    E-Print Network [OSTI]

    Woodruff, Matthew Jeffery

    2012-07-16T23:59:59.000Z

    A series of flight tests was performed using a swept-wing model mounted on a Cessna O-2 aircraft. The crossflow waves on the airfoil were excited by pneumatic spanwise-periodic distributed roughness elements (DREs). The objective of the experiment...

  16. Sandia National Laboratories: National Rotor Testbed Functional...

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

    of the National Rotor Testbed: An Aeroelastically Relevant Research-Scale Wind Turbine Rotor." Approximately 60 researchers from various institutions and countries attended...

  17. Sandia Energy - Rotor Innovation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol Home Distribution GridDocuments Home Stationary PowerResearchRiskRotor

  18. Electrofriction method of manufacturing squirrel cage rotors

    DOE Patents [OSTI]

    Hsu, John S.

    2005-04-12T23:59:59.000Z

    A method of making a squirrel cage rotor of copper material for use in AC or DC motors, includes forming a core with longitudinal slots, inserting bars of conductive material in the slots, with ends extending out of opposite ends of the core, and joining the end rings to the bars, wherein the conductive material of either the end rings or the bars is copper. Various methods of joining the end rings to the bars are disclosed including electrofriction welding, current pulse welding and brazing, transient liquid phase joining and casting. Pressure is also applied to the end rings to improve contact and reduce areas of small or uneven contact between the bar ends and the end rings. Rotors made with such methods are also disclosed.

  19. Analysis of a spinning polygon wavelength swept laser

    E-Print Network [OSTI]

    Johnson, Bart; Kuznetsov, Mark; Goldberg, Brian D; Whitney, Peter; Flanders, Dale C

    2015-01-01T23:59:59.000Z

    It has been known for quite some time that spinning polygon, and similar, swept lasers used in OCT favor the short to long wavelength sweep direction because of four wave mixing in the gain medium. Here we have reformulated the problem in the time domain and show experimentally and through numerical simulation that these lasers are pulsed. The emitted pulses modulate the gain medium refractive index to red shift the light. Instead of new wavelengths being built up slowly from spontaneous emission, each pulse hops to a longer wavelength by nonlinear means, tracking the tunable filter. This allows high speed, low noise tuning in the blue to red direction. Based on this model, we make the first coherence length calculations for a swept source.

  20. Gas turbine rotor straightening -- Case history

    SciTech Connect (OSTI)

    Mazur, Z.; Kubiak, J. [Inst. de Investigaciones Electricas, Temixco (Mexico); Villela, A.; Orozco, J. [Comision Federal de Electricidad, Mexicali (Mexico)

    1999-11-01T23:59:59.000Z

    Due to catastrophic damage, the turbine-compressor rotor of a gas turbine has been bent 0.62 mm. The in-situ repair process of rotor straightening is fully described. The repair process included the design of special fixtures for placing the rotor vertically and then hydraulically tensioning the rotor bolts for discs disassembling and run-out check by a special rotary equipment. After the repair process the rotor run-out fell within the design limits. Finally the rotor was put back into service. The approach to the in-house repair of the rotor bend has been successful and can be widely recommended for users of turbomachinery.

  1. Wind turbine rotor aileron

    DOE Patents [OSTI]

    Coleman, Clint (Warren, VT); Kurth, William T. (Warren, VT)

    1994-06-14T23:59:59.000Z

    A wind turbine has a rotor with at least one blade which has an aileron which is adjusted by an actuator. A hinge has two portions, one for mounting a stationary hinge arm to the blade, the other for coupling to the aileron actuator. Several types of hinges can be used, along with different actuators. The aileron is designed so that it has a constant chord with a number of identical sub-assemblies. The leading edge of the aileron has at least one curved portion so that the aileron does not vent over a certain range of angles, but vents if the position is outside the range. A cyclic actuator can be mounted to the aileron to adjust the position periodically. Generally, the aileron will be adjusted over a range related to the rotational position of the blade. A method for operating the cyclic assembly is also described.

  2. Rotor component displacement measurement system

    DOE Patents [OSTI]

    Mercer, Gary D.; Li, Ming C.; Baum, Charles R.

    2003-05-27T23:59:59.000Z

    A measuring system for measuring axial displacement of a tube relative to an axially stationary component in a rotating rotor assembly includes at least one displacement sensor adapted to be located normal to a longitudinal axis of the tube; an insulated cable system adapted for passage through the rotor assembly; a rotatable proximitor module located axially beyond the rotor assembly to which the cables are connected; and a telemetry system operatively connected to the proximitor module for sampling signals from the proximitor module and forwarding data to a ground station.

  3. Rotor heating effects from geomagnetic induced currents

    SciTech Connect (OSTI)

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

    1994-04-01T23:59:59.000Z

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

  4. Rotor and bearing system for a turbomachine

    DOE Patents [OSTI]

    Lubell, Daniel; Weissert, Dennis

    2006-09-26T23:59:59.000Z

    A rotor and bearing system for a turbomachine. The turbomachine includes a drive shaft, an impeller positioned on the drive shaft, and a turbine positioned on the drive shaft proximate to the impeller. The bearing system comprises one gas journal bearing supporting the drive shaft between the impeller and the turbine. The area between the impeller and the turbine is an area of increased heat along the drive shaft in comparison to other locations along the drive shaft. The section of the drive shaft positioned between impeller and the turbine is also a section of the drive shaft that experiences increased stressed and load in the turbomachine. The inventive bearing machine system positions only one radial bearing in this area of increased stress and load.

  5. Rotor assembly and assay method

    DOE Patents [OSTI]

    Burtis, Carl A. (Oak Ridge, TN); Johnson, Wayne F. (Loudon, TN); Walker, William A. (Knoxville, TN)

    1993-01-01T23:59:59.000Z

    A rotor assembly for carrying out an assay includes a rotor body which is rotatable about an axis of rotation, and has a central chamber and first, second, third, fourth, fifth, and sixth chambers which are in communication with and radiate from the central chamber. The rotor assembly further includes a shuttle which is movable through the central chamber and insertable into any of the chambers, the shuttle including a reaction cup carrying an immobilized antigen or an antibody for transport among the chambers. A method for carrying out an assay using the rotor assembly includes moving the reaction cup among the six chambers by passing the cup through the central chamber between centrifugation steps in order to perform the steps of: separating plasma from blood cells, binding plasma antibody or antigen, washing, drying, binding enzyme conjugate, reacting with enzyme substrate and optically comparing the resulting reaction product with unreacted enzyme substrate solution. The movement of the reaction cup can be provided by attaching a magnet to the reaction cup and supplying a moving magnetic field to the rotor.

  6. Rotor assembly and assay method

    DOE Patents [OSTI]

    Burtis, C.A.; Johnson, W.F.; Walker, W.A.

    1993-09-07T23:59:59.000Z

    A rotor assembly for carrying out an assay includes a rotor body which is rotatable about an axis of rotation, and has a central chamber and first, second, third, fourth, fifth, and sixth chambers which are in communication with and radiate from the central chamber. The rotor assembly further includes a shuttle which is movable through the central chamber and insertable into any of the chambers, the shuttle including a reaction cup carrying an immobilized antigen or an antibody for transport among the chambers. A method for carrying out an assay using the rotor assembly includes moving the reaction cup among the six chambers by passing the cup through the central chamber between centrifugation steps in order to perform the steps of: separating plasma from blood cells, binding plasma antibody or antigen, washing, drying, binding enzyme conjugate, reacting with enzyme substrate and optically comparing the resulting reaction product with unreacted enzyme substrate solution. The movement of the reaction cup can be provided by attaching a magnet to the reaction cup and supplying a moving magnetic field to the rotor. 34 figures.

  7. A reduced Blade-Vortex Interaction rotor

    E-Print Network [OSTI]

    Mani, Somnath

    1996-01-01T23:59:59.000Z

    This research work aims at mapping the BVI azimuthal locations using a model rotor. A model rotor was first developed. An experimental investigation was then carried out to determine the possible BVI locations. The results of the mapping...

  8. Sandia National Laboratories: National Rotor Testbed

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

    Energy, SWIFT, Systems Analysis, Wind Energy The National Rotor Testbed (NRT) team is examining the effect of airfoil choice on the final design of the new rotor for the Scaled...

  9. Hi-Q Rotor - Low Wind Speed Technology

    SciTech Connect (OSTI)

    Todd E. Mills; Judy Tatum

    2010-01-11T23:59:59.000Z

    The project objective was to optimize the performance of the Hi-Q Rotor. Early research funded by the California Energy Commission indicated the design might be advantageous over state-of-the-art turbines for collecting wind energy in low wind conditions. The Hi-Q Rotor is a new kind of rotor targeted for harvesting wind in Class 2, 3, and 4 sites, and has application in areas that are closer to cities, or 'load centers.' An advantage of the Hi-Q Rotor is that the rotor has non-conventional blade tips, producing less turbulence, and is quieter than standard wind turbine blades which is critical to the low-wind populated urban sites. Unlike state-of-the-art propeller type blades, the Hi-Q Rotor has six blades connected by end caps. In this phase of the research funded by DOE's Inventions and Innovation Program, the goal was to improve the current design by building a series of theoretical and numeric models, and composite prototypes to determine a best of class device. Development of the rotor was performed by aeronautical engineering and design firm, DARcorporation. From this investigation, an optimized design was determined and an 8-foot diameter, full-scale rotor was built and mounted using a Bergey LX-1 generator and furling system which were adapted to support the rotor. The Hi-Q Rotor was then tested side-by-side against the state-of-the-art Bergey XL-1 at the Alternative Energy Institute's Wind Test Center at West Texas State University for six weeks, and real time measurements of power generated were collected and compared. Early wind tunnel testing showed that the cut-in-speed of the Hi-Q rotor is much lower than a conventional tested HAWT enabling the Hi-Q Wind Turbine to begin collecting energy before a conventional HAWT has started spinning. Also, torque at low wind speeds for the Hi-Q Wind Turbine is higher than the tested conventional HAWT and enabled the wind turbine to generate power at lower wind speeds. Based on the data collected, the results of our first full-scale prototype wind turbine proved that higher energy can be captured at lower wind speeds with the new Hi-Q Rotor. The Hi-Q Rotor is almost 15% more productive than the Bergey from 6 m/s to 8 m/s, making it ideal in Class 3, 4, and 5 wind sites and has application in the critical and heretofore untapped areas that are closer to cities, 'load centers,' and may even be used directly in urban areas. The additional advantage of the Hi-Q Rotor's non-conventional blade tips, which eliminates most air turbulence, is noise reduction which makes it doubly ideal for populated urban areas. Hi-Q Products recommends one final stage of development to take the Hi-Q Rotor through Technology Readiness Levels 8-9. During this stage of development, the rotor will be redesigned to further increase efficiency, match the rotor to a more suitable generator, and lower the cost of manufacturing by redesigning the structure to allow for production in larger quantities at lower cost. Before taking the rotor to market and commercialization, it is necessary to further optimize the performance by finding a better generator and autofurling system, ones more suitable for lower wind speeds and rpms should be used in all future testing. The potential impact of this fully developed technology will be the expansion and proliferation of energy renewal into the heretofore untapped Class 2, 3, 4, and 5 Wind Sites, or the large underutilized sites where the wind speed is broken by physical features such as mountains, buildings, and trees. Market estimates by 2011, if low wind speed technology can be developed are well above: 13 million homes, 675,000 commercial buildings, 250,000 public facilities. Estimated commercial exploitation of the Hi-Q Rotor show potential increase in U.S. energy gained through the clean, renewable wind energy found in low and very low wind speed sites. This new energy source would greatly impact greenhouse emissions as well as the public sector's growing energy demands.

  10. Turbomachine rotor with improved cooling

    DOE Patents [OSTI]

    Hultgren, K.G.; McLaurin, L.D.; Bertsch, O.L.; Lowe, P.E.

    1998-05-26T23:59:59.000Z

    A gas turbine rotor has an essentially closed loop cooling air scheme in which cooling air drawn from the compressor discharge air that is supplied to the combustion chamber is further compressed, cooled, and then directed to the aft end of the turbine rotor. Downstream seal rings attached to the downstream face of each rotor disc direct the cooling air over the downstream disc face, thereby cooling it, and then to cooling air passages formed in the rotating blades. Upstream seal rings attached to the upstream face of each disc direct the heated cooling air away from the blade root while keeping the disc thermally isolated from the heated cooling air. From each upstream seal ring, the heated cooling air flows through passages in the upstream discs and is then combined and returned to the combustion chamber from which it was drawn. 5 figs.

  11. Turbomachine rotor with improved cooling

    DOE Patents [OSTI]

    Hultgren, Kent Goran (Winter Park, FL); McLaurin, Leroy Dixon (Winter Springs, FL); Bertsch, Oran Leroy (Titusville, FL); Lowe, Perry Eugene (Oviedo, FL)

    1998-01-01T23:59:59.000Z

    A gas turbine rotor has an essentially closed loop cooling air scheme in which cooling air drawn from the compressor discharge air that is supplied to the combustion chamber is further compressed, cooled, and then directed to the aft end of the turbine rotor. Downstream seal rings attached to the downstream face of each rotor disc direct the cooling air over the downstream disc face, thereby cooling it, and then to cooling air passages formed in the rotating blades. Upstream seal rings attached to the upstream face of each disc direct the heated cooling air away from the blade root while keeping the disc thermally isolated from the heated cooling air. From each upstream seal ring, the heated cooling air flows through passages in the upstream discs and is then combined and returned to the combustion chamber from which it was drawn.

  12. Rotor blades for turbine engines

    DOE Patents [OSTI]

    Piersall, Matthew R; Potter, Brian D

    2013-02-12T23:59:59.000Z

    A tip shroud that includes a plurality of damping fins, each damping fin including a substantially non-radially-aligned surface that is configured to make contact with a tip shroud of a neighboring rotor blade. At least one damping fin may include a leading edge damping fin and at least one damping fin may include a trailing edge damping fin. The leading edge damping fin may be configured to correspond to the trailing edge damping fin.

  13. Retinal blood flow measurement with ultrahigh-speed swept-source / Fourier domain optical coherence tomography

    E-Print Network [OSTI]

    Baumann, Bernhard

    Doppler OCT is a functional extension of OCT that provides information on flow in biological tissues. We present a novel approach for total retinal blood flow assessment using ultrahigh speed Doppler OCT. A swept source / ...

  14. Sandia National Laboratories: functional rotor scaling

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

    Aeronautics and Astronautics (AIAA) SciTechAmerican Society of Mechanical Engineers Wind Energy Symposium titled, "Definition of the National Rotor Testbed: An Aeroelastically...

  15. Method for manufacturing a rotor having superconducting coils

    DOE Patents [OSTI]

    Driscoll, David I. (South Euclid, OH); Shoykhet, Boris A. (Beachwood, OH)

    2001-01-01T23:59:59.000Z

    A method and apparatus for manufacturing a rotor for use with a rotating machine is provided that employs a superconducting coil on the rotor. An adhesive is applied to an outer surface of the rotor body, which may include a groove disposed within an outer surface of the rotor body. A superconducting coil is then mounted onto the rotor body such that the adhesive bonds the superconducting coil to the rotor body.

  16. Sandia National Laboratories: wind-turbine rotor design

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

    wind-turbine rotor design National Rotor Testbed Functional Scaling Presented at American Institute of Aeronautics and Astronautics 2014 Scitech On April 15, 2014, in Energy,...

  17. SMART Wind Turbine Rotor: Design and Field Test | Department...

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

    Design and Field Test SMART Wind Turbine Rotor: Design and Field Test This report documents the design, fabrication, and testing of the SMART Wind Turbine Rotor. This work...

  18. Optimum balancing for flexible rotor

    E-Print Network [OSTI]

    Fu, Her James

    1975-01-01T23:59:59.000Z

    for the donation of vibration pick-ups and the loan of precious equipment. A special appreciation is extended to my friend, Miss Mei Ou-Yang, for her assistance, encouragement and unselfish support during the preparation and completion of this project. Last... Balancing Fig. 9 Typical Phase Lag Between Force and Vibration Amplitude Chart 14 20 Fig. 10 Typical Principal Modes for a Symmetric and Uniform Shaft 21 Fig. ll Test Rig Setup Fig. 12 Typical Rotor, Probe and Probe Stand Fig. 13 Critical Speed VS...

  19. Multiple piece turbine rotor blade

    DOE Patents [OSTI]

    Jones, Russell B; Fedock, John A

    2013-05-21T23:59:59.000Z

    A multiple piece turbine rotor blade with a shell having an airfoil shape and secured between a spar and a platform with the spar including a tip end piece. a snap ring fits around the spar and abuts against the spar tip end piece on a top side and abuts against a shell on the bottom side so that the centrifugal loads from the shell is passed through the snap ring and into the spar and not through a tip cap dovetail slot and projection structure.

  20. Radial-radial single rotor turbine

    DOE Patents [OSTI]

    Platts, David A. (Los Alamos, NM)

    2006-05-16T23:59:59.000Z

    A rotor for use in turbine applications has a radial compressor/pump having radially disposed spaced apart fins forming passages and a radial turbine having hollow turbine blades interleaved with the fins and through which fluid from the radial compressor/pump flows. The rotor can, in some applications, be used to produce electrical power.

  1. Substantially parallel flux uncluttered rotor machines

    DOE Patents [OSTI]

    Hsu, John S.

    2012-12-11T23:59:59.000Z

    A permanent magnet-less and brushless synchronous system includes a stator that generates a magnetic rotating field when sourced by polyphase alternating currents. An uncluttered rotor is positioned within the magnetic rotating field and is spaced apart from the stator. An excitation core is spaced apart from the stator and the uncluttered rotor and magnetically couples the uncluttered rotor. The brushless excitation source generates a magnet torque by inducing magnetic poles near an outer peripheral surface of the uncluttered rotor, and the stator currents also generate a reluctance torque by a reaction of the difference between the direct and quadrature magnetic paths of the uncluttered rotor. The system can be used either as a motor or a generator

  2. Vacuum coupling of rotating superconducting rotor

    DOE Patents [OSTI]

    Shoykhet, Boris A.; Zhang, Burt Xudong; Driscoll, David Infante

    2003-12-02T23:59:59.000Z

    A rotating coupling allows a vacuum chamber in the rotor of a superconducting electric motor to be continually pumped out. The coupling consists of at least two concentric portions, one of which is allowed to rotate and the other of which is stationary. The coupling is located on the non-drive end of the rotor and is connected to a coolant supply and a vacuum pump. The coupling is smaller in diameter than the shaft of the rotor so that the shaft can be increased in diameter without having to increase the size of the vacuum seal.

  3. Wave-swept rocky shores support a surprisingly diverse assemblage of organisms that includes members of virtually

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Wave-swept rocky shores support a surprisingly diverse assemblage of organisms that includes members of virtually every animal phylum and both algae and vascular plants. In general, wave that hydrodynamic forces can play an important role in limiting the size of wave-swept plants and animals (Denny et

  4. Wind turbine rotor hub and teeter joint

    DOE Patents [OSTI]

    Coleman, Clint (Warren, VT); Kurth, William T. (Warren, VT); Jankowski, Joseph (Stowe, VT)

    1994-10-11T23:59:59.000Z

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

  5. Interlayer toughening of fiber composite flywheel rotors

    DOE Patents [OSTI]

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

    1998-07-14T23:59:59.000Z

    An interlayer toughening mechanism is described to mitigate the growth of damage in fiber composite flywheel rotors for long application. The interlayer toughening mechanism may comprise one or more tough layers composed of high-elongation fibers, high-strength fibers arranged in a woven pattern at a range from 0{degree} to 90{degree} to the rotor axis and bound by a ductile matrix material which adheres to and is compatible with the materials used for the bulk of the rotor. The number and spacing of the tough interlayers is a function of the design requirements and expected lifetime of the rotor. The mechanism has particular application in uninterruptable power supplies, electrical power grid reservoirs, and compulsators for electric guns, as well as electromechanical batteries for vehicles. 2 figs.

  6. Interlayer toughening of fiber composite flywheel rotors

    DOE Patents [OSTI]

    Groves, Scott E. (Brentwood, CA); Deteresa, Steven J. (Livermore, CA)

    1998-01-01T23:59:59.000Z

    An interlayer toughening mechanism to mitigate the growth of damage in fiber composite flywheel rotors for long application. The interlayer toughening mechanism may comprise one or more tough layers composed of high-elongation fibers, high-strength fibers arranged in a woven pattern at a range from 0.degree. to 90.degree. to the rotor axis and bound by a ductile matrix material which adheres to and is compatible with the materials used for the bulk of the rotor. The number and spacing of the tough interlayers is a function of the design requirements and expected lifetime of the rotor. The mechanism has particular application in uninterruptable power supplies, electrical power grid reservoirs, and compulsators for electric guns, as well as electromechanical batteries for vehicles.

  7. A carbon nanotube bearing and Stodola rotor

    E-Print Network [OSTI]

    Cook, Eugene Hightower

    2008-01-01T23:59:59.000Z

    A nano-scale rotor supported on a cantilevered multi-wall carbon nanotube (MWNT) shaft (Stodola configuration) is proposed. The nanotube is also expected to function as the bearing, since individual walls of a MWNT are not ...

  8. Sandia National Laboratories: rotor structural verification

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

    Renewable Energy, SWIFT, Wind Energy Rotor fixation stands, one for each Scaled Wind Farm Technology (SWiFT) facility turbine, have been built. The stands will be used to...

  9. Sensitivity of Swept-Wing, Boundary-Layer Transition to Spanwise-Periodic Discrete Roughness Elements

    E-Print Network [OSTI]

    West, David Edward

    2014-12-12T23:59:59.000Z

    Micron-sized, spanwise-periodic, discrete roughness elements (DREs) were applied to and tested on a 30° swept-wing model in order to study their effects on boundary-layer transition in flight where stationary crossflow waves are the dominant...

  10. Computations of Laminar Flow Control on Swept Wings as a Companion to Flight Test Research

    E-Print Network [OSTI]

    Rhodes, Richard G.

    2010-01-14T23:59:59.000Z

    ................................................................................................. xiv CHAPTER I INTRODUCTION............................................................................. 1 A. Background Motivation.......................................................... 1 B. Objective... ...................................................................................................................... 95 xi LIST OF FIGURES Page Fig. 1 Three dimensionality of a swept-wing boundary-layer..................................... 4 Fig. 2 Flight configuration of the O-2 Skymaster and SWIFT model....................... 10 Fig. 3 IR...

  11. The cost of noise reduction in commercial tilt rotor aircraft

    E-Print Network [OSTI]

    Faulkner, Henry B.

    1974-01-01T23:59:59.000Z

    The relationship between direct operating cost and departure noise annoyance was developed for commercial tilt rotor aircraft. This was accomplished by generating a series of tilt rotor aircraft designs to meet various ...

  12. active elevon rotor: Topics by E-print Network

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

    (UGT) are expected to be a next of incorporating a wave rotor to an ultra-micro gas turbine and the advantages of wave rotors, topping gas turbines at about 70%. Keywords:...

  13. active twist rotor: Topics by E-print Network

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

    (UGT) are expected to be a next of incorporating a wave rotor to an ultra-micro gas turbine and the advantages of wave rotors, topping gas turbines at about 70%. Keywords:...

  14. advanced turbocharger rotor: Topics by E-print Network

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

    (UGT) are expected to be a next of incorporating a wave rotor to an ultra-micro gas turbine and the advantages of wave rotors, topping gas turbines at about 70%. Keywords:...

  15. active flap rotor: Topics by E-print Network

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

    (UGT) are expected to be a next of incorporating a wave rotor to an ultra-micro gas turbine and the advantages of wave rotors, topping gas turbines at about 70%. Keywords:...

  16. advanced rotor systems: Topics by E-print Network

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

    (UGT) are expected to be a next of incorporating a wave rotor to an ultra-micro gas turbine and the advantages of wave rotors, topping gas turbines at about 70%. Keywords:...

  17. adiabatic rotor model: Topics by E-print Network

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

    (UGT) are expected to be a next of incorporating a wave rotor to an ultra-micro gas turbine and the advantages of wave rotors, topping gas turbines at about 70%. Keywords:...

  18. asymmetric rotor model: Topics by E-print Network

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

    (UGT) are expected to be a next of incorporating a wave rotor to an ultra-micro gas turbine and the advantages of wave rotors, topping gas turbines at about 70%. Keywords:...

  19. Variable diameter wind turbine rotor blades

    DOE Patents [OSTI]

    Jamieson, Peter McKeich; Hornzee-Jones, Chris; Moroz, Emilian M.; Blakemore, Ralph W.

    2005-12-06T23:59:59.000Z

    A system and method for changing wind turbine rotor diameters to meet changing wind speeds and control system loads is disclosed. The rotor blades on the wind turbine are able to adjust length by extensions nested within or containing the base blade. The blades can have more than one extension in a variety of configurations. A cable winching system, a hydraulic system, a pneumatic system, inflatable or elastic extensions, and a spring-loaded jack knife deployment are some of the methods of adjustment. The extension is also protected from lightning by a grounding system.

  20. Aeroelastic analysis of a helicopter rotor

    E-Print Network [OSTI]

    McQuien, Larry Jay

    1977-01-01T23:59:59.000Z

    AEROELASTIC ANALYSIS OF A HELICOPTER ROTOR A Thesis by LARRY JAY NcQUIEN Submitted to the Graduate College of Texas A&'N University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December 1977 Major Subject...: Aerospace Engineering AEROELASTIC ANALYSIS OF A HELICOPTER ROTOR A Thesis LARRY JAY McQUIEN Approved as to style and content by: (Co-Chairman of Committee) / l (Co-Chair an o f Commi t tee) (Head of Depa tment) (Nember) (Nember) December 1977...

  1. Ultra-Micro Wave Rotor Investigations Florin Iancu, Janusz Piechna*

    E-Print Network [OSTI]

    MĂĽller, Norbert

    Nowowiejska Str., 00-665 Warsaw, Poland Abstract Ultra Micro Gas Turbines (UµGT) are expected to be a next of incorporating a wave rotor to an ultra-micro gas turbine and the advantages of wave rotors, topping gas turbines at about 70%. Keywords: PowerMEMS, wave rotor, ultra micro gas turbine, pressure exchanger, efficiency 1

  2. On the Classification of Universal Rotor-Routers

    E-Print Network [OSTI]

    He, Xiaoyu

    2011-01-01T23:59:59.000Z

    The combinatorial theory of rotor-routers has connections with problems of statistical mechanics, graph theory, chaos theory, and computer science. A rotor-router network defines a deterministic walk on a digraph G in which a particle walks from a source vertex until it reaches one of several target vertices. Motivated by recent results due to Giacaglia et al., we study rotor-router networks in which all non-target vertices have the same type. A rotor type r is universal if every hitting sequence can be achieved by a homogeneous rotor-router network consisting entirely of rotors of type r. We give a conjecture that completely classifies universal rotor types. Then, this problem is simplified by a theorem we call the Reduction Theorem that allows us to consider only two-state rotors. A rotor-router network called the compressor, because it tends to shorten rotor periods, is introduced along with an associated algorithm that determines the universality of almost all rotors. New rotor classes, including boppy ro...

  3. Dynamics and Fatigue Damage of Wind Turbine Rotors

    E-Print Network [OSTI]

    6 3 RiS0-Rr512 Dynamics and Fatigue Damage of Wind Turbine Rotors during Steady Operation Peter OF WIND TURBINE ROTORS DURING STEADY OPERATION Peter Hauge Madsen, Sten Frandsen, William E. Holley-carrying capacity of a wind turbine rotor with respect to short-term strength and material fatigue are presented

  4. Developments for a Swept Wing Airfoil to Study the Effects of Step and Gap Excrescences on Boundary Layer Transition 

    E-Print Network [OSTI]

    Hedderman, Simon Peter

    2013-01-15T23:59:59.000Z

    crossflow pattern with 50mm lens ................... 45 Figure 31 - Perspective & plan views of the KSWT ........................................................ 47 Figure 32 - KSWT fan in situ..., these tests would not be an accurate representation of swept-wing step excrescence effects, as the airfoil itself was not swept, and not subject to as large a degree of crossflow instability. Figure 4 - X-21 & T-34C testing critical Reynolds numbers...

  5. Voith High Efficiency HM Rotor Energy Data, A Repulper Rotor Design Case Study

    E-Print Network [OSTI]

    Aue, J.; Fineran, B.

    2005-01-01T23:59:59.000Z

    A recently completed demonstration project, funded partly by the Wisconsin Focus on Energy program and Wisconsin Public Service Corporation, shows the effectiveness of an energy efficient repulper rotor design compared with that of a conventional...

  6. Rotor bore and turbine rotor wheel/spacer heat exchange flow circuit

    DOE Patents [OSTI]

    Caruso, Philip M. (Selkirk, NY); Eldrid, Sacheverel Quentin (Saratoga Springs, NY); Ladhani, Azad A. (Niskayuna, NY); DeMania, Alan Richard (Niskayuna, NY); Palmer, Gene David (Clifton Park, NY); Wilson, Ian David (Clifton Park, NY); Rathbun, Lisa Shirley (Scotia, NY); Akin, Robert Craig (Schenectady, NY)

    2002-01-01T23:59:59.000Z

    In a turbine having closed-circuit steam-cooling passages about the rim of the rotor during steady-state operation, compressor discharge air is supplied to the rotor bore for passage radially outwardly into the wheel space cavities between the wheels and spacers. Communicating slots and channels in the spacers and wheels at circumferentially spaced positions enable egress of the compressor discharge air into the hot gas flow path. At turbine startup, cooling air flows through the closed-circuit steam passages to cool the outer rim of the rotor while compressor discharge air pre-warms the wheels and spacers. At steady-state, cooling steam is supplied in the closed-circuit steam-cooling passages and compressor discharge air is supplied through the bore and into the wheel space cavities to cool the rotor.

  7. Utilization of rotor kinetic energy storage for hybrid vehicles

    DOE Patents [OSTI]

    Hsu, John S. (Oak Ridge, TN)

    2011-05-03T23:59:59.000Z

    A power system for a motor vehicle having an internal combustion engine, the power system comprises an electric machine (12) further comprising a first excitation source (47), a permanent magnet rotor (28) and a magnetic coupling rotor (26) spaced from the permanent magnet rotor and at least one second excitation source (43), the magnetic coupling rotor (26) also including a flywheel having an inertial mass to store kinetic energy during an initial acceleration to an operating speed; and wherein the first excitation source is electrically connected to the second excitation source for power cycling such that the flywheel rotor (26) exerts torque on the permanent magnet rotor (28) to assist braking and acceleration of the permanent magnet rotor (28) and consequently, the vehicle. An axial gap machine and a radial gap machine are disclosed and methods of the invention are also disclosed.

  8. Horizontal wind rotor. Final technical report

    SciTech Connect (OSTI)

    Guard, E.J.

    1983-06-30T23:59:59.000Z

    A vertical axis wind machine called, ''Horizontal Wind Rotor'' conceived in 1979 by the Grantee E.J. Guard was an effort to marry a new high tech carousel type wind rotor to a basic building design for the purpose of generating practical amounts of electricty. This was directed especially towards high performance power generation, relative to low average wind velocity fields, typically found in Florida. From January 1980 to April 1983 two 1/30 scale wind tunnel type test models of buildings, one round and one square were built. An eight Hartzell shrouded wind tunnel fan machine was designed and built to supply uniform wind velocities for testing. All components of the Horizontal Wind Rotor (HWR) were fabricated, instrumented, mounted on the building models, and tested and modified repeatedly for performance optimization. Aerodynamic consultants, model makers, mechanical and computer engineers and technicians under the direction of E. Guard all teamed up to evolve the size, shape, and placement of the system components. It was recognized early that the machine had to be large in order to extract energy from low wind velocities. It was also noted that there were so many variables in the system, so as to elude analytical computation, that only testing could provide the answers. Consequently, this grant program has provided major contributions to the sparse available data in this little studied field, and set up valuable bench marks in design and power output parameters. This data will be the foundation for incorporating the newly discovered design improvements into the full scale prototype to follow. (Phase II) It is believed that this Rotor design is the only one in the world today that will produce as much power in the lower wind velocity ranges and it is also believed that every objective of the original grant proposal has been met or exceeded.

  9. Double-ended ceramic helical-rotor expander

    DOE Patents [OSTI]

    Mohr, P.B.; Myers, W.B.

    1995-02-28T23:59:59.000Z

    A ceramic helical rotor expander is disclosed using a double-ended or tandem herringbone type rotor arrangement with bearing and seal assemblies remote from the hot gas inlets and especially capable of operating at an inlet temperature of above 1,100 C. The rotors are solid or hollow and bonded to hollow metal shafts, and mounted in a composite or simple prismatic casing. The rotors, casing and shafts are constructed from low expansivity materials. In the preferred embodiment the rotors are constructed of silicon nitride and the shafts constructed of an molybdenum alloy, with the metal shafts being supported in bearings and secured to synchronizing gears. The rotors and casing may be provided with coolant channels therein, and are constructed to eliminate the problem of end leakages at inlet temperature and pressure, and the need for high temperature bearings and seals. 3 figs.

  10. Rotor assembly and method for automatically processing liquids

    DOE Patents [OSTI]

    Burtis, C.A.; Johnson, W.F.; Walker, W.A.

    1992-12-22T23:59:59.000Z

    A rotor assembly is described for performing a relatively large number of processing steps upon a sample, such as a whole blood sample, and a diluent, such as water. It includes a rotor body for rotation about an axis and includes a network of chambers within which various processing steps are performed upon the sample and diluent and passageways through which the sample and diluent are transferred. A transfer mechanism is movable through the rotor body by the influence of a magnetic field generated adjacent the transfer mechanism and movable along the rotor body, and the assembly utilizes centrifugal force, a transfer of momentum and capillary action to perform any of a number of processing steps such as separation, aliquoting, transference, washing, reagent addition and mixing of the sample and diluent within the rotor body. The rotor body is particularly suitable for automatic immunoassay analyses. 34 figs.

  11. Rotor assembly and method for automatically processing liquids

    DOE Patents [OSTI]

    Burtis, Carl A. (Oak Ridge, TN); Johnson, Wayne F. (Loudon, TN); Walker, William A. (Knoxville, TN)

    1992-01-01T23:59:59.000Z

    A rotor assembly for performing a relatively large number of processing steps upon a sample, such as a whole blood sample, and a diluent, such as water, includes a rotor body for rotation about an axis and including a network of chambers within which various processing steps are performed upon the sample and diluent and passageways through which the sample and diluent are transferred. A transfer mechanism is movable through the rotor body by the influence of a magnetic field generated adjacent the transfer mechanism and movable along the rotor body, and the assembly utilizes centrifugal force, a transfer of momentum and capillary action to perform any of a number of processing steps such as separation, aliquoting, transference, washing, reagent addition and mixing of the sample and diluent within the rotor body. The rotor body is particularly suitable for automatic immunoassay analyses.

  12. Development and Analysis of a Swept Blade Aeroelastic Model for a Small Wind Turbine (Presentation)

    SciTech Connect (OSTI)

    Preus, R.; Damiani, R.; Lee, S.; Larwood, S.

    2014-06-01T23:59:59.000Z

    As part of the U.S. Department-of-Energy-funded Competitiveness Improvement Project, the National Renewable Energy Laboratory (NREL) developed new capabilities for aeroelastic modeling of precurved and preswept blades for small wind turbines. This presentation covers the quest for optimized rotors, computer-aided engineering tools, a case study, and summary of the results.

  13. Disc rotors with permanent magnets for brushless dc motor

    SciTech Connect (OSTI)

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

    1992-05-26T23:59:59.000Z

    This patent describes a brushless dc permanent magnet motor for driving an autonomous underwater vehicle. It comprises first and second substantially flat, generally cylindrical stators disposed in side by side relation; a first substantially flat, generally cylindrical rotor; a first shaft connected to the first rotor and a second, concentric shaft connected to the second rotor; and means for providing rotation of the first and second shafts in opposite directions.

  14. Rotor for processing liquids using movable capillary tubes

    DOE Patents [OSTI]

    Johnson, W.F.; Burtis, C.A.; Walker, W.A.

    1987-07-17T23:59:59.000Z

    A rotor assembly for processing liquids, especially whole blood samples, is disclosed. The assembly includes apparatus for separating non-liquid components of whole blood samples from liquid components, apparatus for diluting the separated liquid component with a diluent and apparatus for transferring the diluted sample to an external apparatus for analysis. The rotor assembly employs several movable capillary tubes to handle the sample and diluents. A method for using the rotor assembly to process liquids is also described. 5 figs.

  15. Rotor for processing liquids using movable capillary tubes

    DOE Patents [OSTI]

    Johnson, Wayne F. (Loudon, TN); Burtis, Carl A. (Oak Ridge, TN); Walker, William A. (Knoxville, TN)

    1989-05-30T23:59:59.000Z

    A rotor assembly for processing liquids, especially whole blood samples, is disclosed. The assembly includes apparatus for separating non-liquid components of whole blood samples from liquid components, apparatus for diluting the separated liquid component with a diluent and apparatus for transferring the diluted sample to an external apparatus for analysis. The rotor assembly employs several movable capillary tubes to handle the sample and diluents. A method for using the rotor assembly to process liquids is also described.

  16. Rotor for processing liquids using movable capillary tubes

    DOE Patents [OSTI]

    Johnson, Wayne F. (Loudon, TN); Burtis, Carl A. (Oak Ridge, TN); Walker, William A. (Knoxville, TN)

    1989-01-01T23:59:59.000Z

    A rotor assembly for processing liquids, especially whole blood samples, is disclosed. The assembly includes apparatus for separating non-liquid components of whole blood samples from liquid components, apparatus for diluting the separated liquid component with a diluent and apparatus for transferring the diluted sample to an external apparatus for analysis. The rotor assembly employs several movable capillary tubes to handle the sample and diluents. A method for using the rotor assembly to process liquids is also described.

  17. Mechanical coupling for a rotor shaft assembly of dissimilar materials

    DOE Patents [OSTI]

    Shi, Jun (Glastonbury, CT); Bombara, David (New Hartford, CT); Green, Kevin E. (Broad Brook, CT); Bird, Connic (Rocky Hill, CT); Holowczak, John (South Windsor, CT)

    2009-05-05T23:59:59.000Z

    A mechanical coupling for coupling a ceramic disc member to a metallic shaft includes a first wedge clamp and a second wedge clamp. A fastener engages a threaded end of a tie-bolt to sandwich the ceramic disc between the wedge clamps. An axial spring is positioned between the fastener and the second wedge clamp to apply an axial preload along the longitudinal axis. Another coupling utilizes a rotor shaft end of a metallic rotor shaft as one wedge clamp. Still another coupling includes a solid ceramic rotor disc with a multiple of tie-bolts radially displaced from the longitudinal axis to exert the preload on the solid ceramic rotor disc.

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

    DOE Patents [OSTI]

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

    1998-06-02T23:59:59.000Z

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

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

    DOE Patents [OSTI]

    Deteresa, Steven J. (Livermore, CA); Groves, Scott E. (Brentwood, CA)

    1998-06-02T23:59:59.000Z

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

  20. Sandia Energy - Offshore Wind RD&D: Large Offshore Rotor Development

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

    Offshore Rotor Development Home Stationary Power Energy Conversion Efficiency Wind Energy Offshore Wind Offshore Wind RD&D: Large Offshore Rotor Development Offshore Wind RD&D:...

  1. Sandia Energy - Offshore Wind RD&D: Large Offshore Rotor Development

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

    Offshore Wind RD&D: Large Offshore Rotor Development Home Stationary Power Energy Conversion Efficiency Wind Energy Offshore Wind Offshore Wind RD&D: Large Offshore Rotor...

  2. Turbulence ingestion noise of open rotors

    E-Print Network [OSTI]

    Robison, Rosalyn Aruna Venner

    2012-04-10T23:59:59.000Z

    . Thus a blade whose leading edge curves back in the axial direction, as seen in Figure 1.4, has non-zero sweep. 1.2 Technological context: the open rotor design 9 Figure 1.3: Example of Rig 140 noise results. Image reproduced with permission from... , flight testing and calibration of methods. Hoff included a diagram which illustrated the many different propfan noise sources, see Figure 1.4. There was also a recognition that distortion is an important factor in predicting the acoustics of propeller...

  3. Induction Motors Thermal Monitoring by Means of Rotor Resistance Identification

    E-Print Network [OSTI]

    Boyer, Edmond

    , FRANCE Mohamed-El-Hackemi.Benbouzid@sc.u-picardie.fr Abstract: Rotor and stator temperature machines. Especially, when operating with overload cycles, it is necessary to monitor rotor bars and stator winding temperatures to make sure that the temperature remains below prescribed limits. The purpose

  4. Main Rotor Swashplate Test Stand Design Model and System Overview

    E-Print Network [OSTI]

    Almor, Amit

    on the aircraft due to reaction forces generated by rotor blade lift which varies with rotor speed and blade angle of the modified stand: Rotating Components Drivetrain o Variable speed AC Motor o Double cardan input driveshaft, and more closely mimic the operational kinematics of a swashplate which is installed on an aircraft

  5. Effects of increasing tip velocity on wind turbine rotor design.

    SciTech Connect (OSTI)

    Resor, Brian Ray; Maniaci, David Charles; Berg, Jonathan Charles; Richards, Phillip William

    2014-05-01T23:59:59.000Z

    A reduction in cost of energy from wind is anticipated when maximum allowable tip velocity is allowed to increase. Rotor torque decreases as tip velocity increases and rotor size and power rating are held constant. Reduction in rotor torque yields a lighter weight gearbox, a decrease in the turbine cost, and an increase in the capacity for the turbine to deliver cost competitive electricity. The high speed rotor incurs costs attributable to rotor aero-acoustics and system loads. The increased loads of high speed rotors drive the sizing and cost of other components in the system. Rotor, drivetrain, and tower designs at 80 m/s maximum tip velocity and 100 m/s maximum tip velocity are created to quantify these effects. Component costs, annualized energy production, and cost of energy are computed for each design to quantify the change in overall cost of energy resulting from the increase in turbine tip velocity. High fidelity physics based models rather than cost and scaling models are used to perform the work. Results provide a quantitative assessment of anticipated costs and benefits for high speed rotors. Finally, important lessons regarding full system optimization of wind turbines are documented.

  6. Texas Fluid Dynamics Meeting, 2013 STABILITY OF ROTOR WAKES.

    E-Print Network [OSTI]

    Tinney, Charles E.

    to the presence of multiple helical fila- ments. Wakes of helicopter rotors, wind turbines and ma- rine propellers% confidence interval at wake ages, : 10 - 80. Dashed lines are separated by r /r = 3 in the wake of windTexas Fluid Dynamics Meeting, 2013 STABILITY OF ROTOR WAKES. Swathi M. Mula & Charles. E. Tinney

  7. Single Molecular Rotor at the Nanoscale Christian Joachim1

    E-Print Network [OSTI]

    Gimzewski, James

    to transform such a molecular rotor into a motor with a given motive power are also discussed. Keywords components that transform energy (or information) and use this transformation. Their miniaturization is often: Molecular rotor, Motive power, Decoherence, Classical motion, Quantum control, Nano-thermodynamics 1

  8. In-flight Receptivity Experiments on a 30-degree Swept-wing using Micron-sized Discrete Roughness Elements

    E-Print Network [OSTI]

    Carpenter, Andrew L.

    2010-01-16T23:59:59.000Z

    and operated at a chord Reynolds number of 6.5 to 7.5 million. Spanwise-periodic, micronsized discrete roughness elements were applied at the leading edge of the swept-wing in order to excite the most unstable crossflow wavelength and promote early boundary...

  9. KELP VERSUS CORALLINE: CELLULAR BASIS FOR MECHANICAL STRENGTH IN THE WAVE-SWEPT SEAWEED CALLIARTHRON (CORALLINACEAE, RHODOPHYTA)1

    E-Print Network [OSTI]

    Martone, Patrick T.

    KELP VERSUS CORALLINE: CELLULAR BASIS FOR MECHANICAL STRENGTH IN THE WAVE-SWEPT SEAWEED- ing in girth versus growing strong tissues. Brown macroalgae, such as kelps, grow thick stipes an order of magnitude stronger than some kelp tissues, but genicula rarely exceed 1 mm in diameter

  10. June 15, 1998 / Vol. 23, No. 12 / OPTICS LETTERS 975 Frequency-swept ultrasound-modulated optical

    E-Print Network [OSTI]

    Wang, Lihong

    and amplitude by a power amplifier and a transformer, respectively. The instantaneous frequency of the fre to image objects buried inside the scattering media. A one- dimensional (1D) image along the ultrasonic in Fig. 1. A function generator produced a frequency- swept signal, which then was amplified in power

  11. Short range, ultra-wideband radar with high resolution swept range gate

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1998-05-26T23:59:59.000Z

    A radar range finder and hidden object locator is based on ultra-wide band radar with a high resolution swept range gate. The device generates an equivalent time amplitude scan with a typical range of 4 inches to 20 feet, and an analog range resolution as limited by a jitter of on the order of 0.01 inches. A differential sampling receiver is employed to effectively eliminate ringing and other aberrations induced in the receiver by the near proximity of the transmit antenna, so a background subtraction is not needed, simplifying the circuitry while improving performance. Uses of the invention include a replacement of ultrasound devices for fluid level sensing, automotive radar, such as cruise control and parking assistance, hidden object location, such as stud and rebar finding. Also, this technology can be used when positioned over a highway lane to collect vehicle count and speed data for traffic control.

  12. Short range, ultra-wideband radar with high resolution swept range gate

    DOE Patents [OSTI]

    McEwan, T.E.

    1998-05-26T23:59:59.000Z

    A radar range finder and hidden object locator is based on ultra-wide band radar with a high resolution swept range gate. The device generates an equivalent time amplitude scan with a typical range of 4 inches to 20 feet, and an analog range resolution as limited by a jitter of on the order of 0.01 inches. A differential sampling receiver is employed to effectively eliminate ringing and other aberrations induced in the receiver by the near proximity of the transmit antenna, so a background subtraction is not needed, simplifying the circuitry while improving performance. Uses of the invention include a replacement of ultrasound devices for fluid level sensing, automotive radar, such as cruise control and parking assistance, hidden object location, such as stud and rebar finding. Also, this technology can be used when positioned over a highway lane to collect vehicle count and speed data for traffic control. 14 figs.

  13. Reference Model 2: %22Rev 0%22 Rotor Design.

    SciTech Connect (OSTI)

    Barone, Matthew F.; Berg, Jonathan Charles; Griffith, Daniel

    2011-12-01T23:59:59.000Z

    The preliminary design for a three-bladed cross-flow rotor for a reference marine hydrokinetic turbine is presented. A rotor performance design code is described, along with modifications to the code to allow prediction of blade support strut drag as well as interference between two counter-rotating rotors. The rotor is designed to operate in a reference site corresponding to a riverine environment. Basic rotor performance and rigid-body loads calculations are performed to size the rotor elements and select the operating speed range. The preliminary design is verified with a simple finite element model that provides estimates of bending stresses during operation. A concept for joining the blades and support struts is developed and analyzed with a separate finite element analysis. Rotor mass, production costs, and annual energy capture are estimated in order to allow calculations of system cost-of-energy. Evaluation Only. Created with Aspose.Pdf.Kit. Copyright 2002-2011 Aspose Pty Ltd Evaluation Only. Created with Aspose.Pdf.Kit. Copyright 2002-2011 Aspose Pty Ltd

  14. Variable speed operation of generators with rotor-speed feedback in wind power applications

    SciTech Connect (OSTI)

    Muljadi, E.; Butterfield, C.P.; Migliore, P.

    1995-11-01T23:59:59.000Z

    The use of induction generators in wind power applications has been common since the early development of the wind industry. Most of these generators operate at fixed frequency and are connected directly to the utility grid. Unfortunately, this mode of operation limits the rotor speed to a specific rpm. Variable-speed operation is preferred in order to facilitate maximum energy capture over a wide range of wind speeds. This paper explores variable-speed operating strategies for wind turbine applications. The objectives are to maximize energy production, provide controlled start-up and reduce torque loading. This paper focuses on optimizing the energy captured by operating at maximum aerodynamic efficiency at any wind speed. The control strategy we analyze uses rotor speed and generator power as the feedback signals. In the normal operating region, rotor speed is used to compute a target power that corresponds to optimum operation. With power as the control objective, the power converter and generator are controlled to track the target power at any rpm. Thus, the torque-speed characteristic of the generator is shaped to optimize the energy capture. The target power is continuously updated at any rpm. in extreme areas of the operating envelope, during start-up, shutdown, generator overload, or overspeed, different strategies driven by other system considerations must be used.

  15. Variable speed operation of generators with rotor-speed feedback in wind power applications

    SciTech Connect (OSTI)

    Muljadi, E.; Butterfield, C.P.; Migliore, P. [National Renewable Energy Lab., Golden, CO (United States). Wind Technology Div.

    1996-10-01T23:59:59.000Z

    The use of induction generators in wind power applications has been common since the early development of the wind industry. Most of these generators operate at fixed frequency and are connected directly to the utility grid. Unfortunately, this mode of operation limits the rotor speed to a specific rpm. Variable-speed operation is preferred in order to facilitate maximum energy capture over a wide range of wind speeds. This paper explores variable-speed operating strategies for wind turbine applications. The objectives are to maximize energy production, provide controlled start-up and reduce torque loading. This paper focuses on optimizing the energy captured by operating at maximum aerodynamic efficiency at any wind speed. The control strategy analyzed uses rotor speed and generator power as the feedback signals. In the normal operating region, rotor speed is used to compute a target power that corresponds to optimum operation. With power as the control objective, the power converter and generator are controlled to track the target power at any rpm. Thus, the torque-speed characteristic of the generator is shaped to optimize the energy capture. The target power is continuously updated at any rpm. In extreme areas of the operating envelope, during start-up, shutdown, generator overload, or overspeed, different strategies driven by other system considerations must be used.

  16. Variable speed operation of generators with rotor-speed feedback in wind power applications

    SciTech Connect (OSTI)

    Muljadi, E.; Butterfield, C.P.; Migliore, P. [National Renewable Energy Lab., Golden, CO (United States)

    1996-11-01T23:59:59.000Z

    The use of induction generators in wind power applications has been common since the early development of the wind industry. Most of these generators operate at fixed frequency and are connected directly to the utility grid. Unfortunately, this mode of operation limits the rotor speed to a specific rpm. Variable speed operation is preferred in order to facilitate maximum energy capture over a wide range of wind speeds. This paper explores variable speed operating strategies for wind turbine applications. The objectives are to maximize energy production, provide controlled start-up, and reduce torque loading. This paper focuses on optimizing the energy captured by operating at maximum aerodynamic efficiency at any wind speed. The control strategy the authors analyze uses rotor speed and generator power as the feedback signals. In the normal operating region, rotor speed is used to compute a target power that corresponds to optimum operation. With power as the control objective, the power converter and generator are controlled to track the target power at any rpm. Thus, the torque-speed characteristic of the generator is shaped to optimize the energy capture. The target power is continuously updated at any rpm. In extreme areas of the operating envelope, during start-up, shutdown, generator overload, or overspeed, different strategies driven by other system considerations must be used.

  17. Tip cap for a turbine rotor blade

    DOE Patents [OSTI]

    Kimmel, Keith D

    2014-03-25T23:59:59.000Z

    A turbine rotor blade with a spar and shell construction, and a tip cap that includes a row of lugs extending from a bottom side that form dovetail grooves that engage with similar shaped lugs and grooves on a tip end of the spar to secure the tip cap to the spar against radial displacement. The lug on the trailing edge end of the tip cap is aligned perpendicular to a chordwise line of the blade in the trailing edge region in order to minimize stress due to the lugs wanting to bend under high centrifugal loads. A two piece tip cap with lugs at different angles will reduce the bending stress even more.

  18. Synchronization and Collective Dynamics in a Carpet of Microfluidic Rotors

    E-Print Network [OSTI]

    Nariya Uchida; Ramin Golestanian

    2010-04-28T23:59:59.000Z

    We study synchronization of an array of rotors on a substrate that are coupled by hydrodynamic interaction. The rotors that are modeled by an effective rigid body, are driven by an internal torque and exerts an active force on the surrounding fluid. The long-ranged nature of the hydrodynamic interaction between the rotors causes a rich pattern of dynamical behaviors including phase ordering and turbulent spiral waves. The model provides a novel example of coupled oscillators with long-range interaction. Our results suggest strategies for designing controllable microfluidic mixers using the emergent behavior of hydrodynamically coupled active components.

  19. Control coil arrangement for a rotating machine rotor

    DOE Patents [OSTI]

    Shah, Manoj R. (Latham, NY); Lewandowsk, Chad R. (Amsterdam, NY)

    2001-07-31T23:59:59.000Z

    A rotating machine (e.g., a turbine, motor or generator) is provided wherein a fixed solenoid or other coil configuration is disposed adjacent to one or both ends of the active portion of the machine rotor for producing an axially directed flux in the active portion so as to provide planar axial control at single or multiple locations for rotor balance, levitation, centering, torque and thrust action. Permanent magnets can be used to produce an axial bias magnetic field. The rotor can include magnetic disks disposed in opposed, facing relation to the coil configuration.

  20. Methods and apparatus for rotor blade ice detection

    DOE Patents [OSTI]

    LeMieux, David Lawrence

    2006-08-08T23:59:59.000Z

    A method for detecting ice on a wind turbine having a rotor and one or more rotor blades each having blade roots includes monitoring meteorological conditions relating to icing conditions and monitoring one or more physical characteristics of the wind turbine in operation that vary in accordance with at least one of the mass of the one or more rotor blades or a mass imbalance between the rotor blades. The method also includes using the one or more monitored physical characteristics to determine whether a blade mass anomaly exists, determining whether the monitored meteorological conditions are consistent with blade icing; and signaling an icing-related blade mass anomaly when a blade mass anomaly is determined to exist and the monitored meteorological conditions are determined to be consistent with icing.

  1. Sandia National Laboratories: capture more wind with longer rotors

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

    capture more wind with longer rotors New Material Tests Show Biaxial Laminate Creep Is Important for Large Wind-Turbine Blades On April 1, 2014, in Energy, News, News & Events,...

  2. DOE and Sandia National Laboratories Develop National Rotor Testbed...

    Energy Savers [EERE]

    and Sandia National Laboratories (SNL) are designing a modern, research-quality wind turbine rotor for use at the new Scaled Wind Farm Technology (SWiFT) site at Texas Tech...

  3. Methods and apparatus for rotor load control in wind turbines

    DOE Patents [OSTI]

    Moroz, Emilian Mieczyslaw

    2006-08-22T23:59:59.000Z

    A wind turbine having a rotor, at least one rotor blade, and a plurality of generators, of which a first generator is configured to provide power to an electric grid and a second generator is configured to provide power to the wind turbine during times of grid loss. The wind turbine is configured to utilize power provided by the second generator to reduce loads on the wind turbine during times of grid loss.

  4. Structural testing of the North Wind 250 composite rotor joint

    SciTech Connect (OSTI)

    Musial, W; Link, H [National Renewable Energy Lab., Golden, CO (United States); Coleman, C [Northern Power Systems, Moretown, VT (United States)

    1994-05-01T23:59:59.000Z

    The North Wind 250 wind turbine is under development at Northern Power Systems (NPS) in Moretown, VT. The turbine uses a unique, flow-through, teetered-rotor design. This design eliminates structural discontinuities at the blade/hub interface by fabricating the rotor as one continuous structural element. To accomplish this, the two blade spars are joined at the center of the rotor using a proprietary bonding technique. Fatigue tests were conducted on the full-scale rotor joint at the National Renewable Energy Laboratory (NREL). Subsequent tests are now underway to test the full-scale rotor and hub assembly to verify the design assumptions. The test articles were mounted in dedicated test fixtures. For the joint test, a constant moment was generated across the joint and parent material. Hydraulic actuators applied sinusoidal loading to the test article at levels equivalent to 90% of the extreme wind load for over one million cycles. When the loading was increased to 112% of the extreme wind load, the joint failed by buckling. Strain levels were monitored at 14 locations inside and outside of the blade joint during the test. The tests were used to qualify this critical element of the rotor for field testing and to provide information needed to improve the structural design of the joint.

  5. Control of Induction Motor with Cbrientation on Rotor Flux or on Stator Flux in a very wide Field Weakening Regiori -

    E-Print Network [OSTI]

    Paderborn, Universität

    inductance of stator and rotor winding (Ls = L, = L,,, +Lo is assumed here). Rotor speed. Number of pole pairs. Resistances of stator and rotor winding. Rotor time constant. Electromagnetic torque. Load torqueControl of Induction Motor with Cbrientation on Rotor Flux or on Stator Flux in a very wide Field

  6. Rigid-rotor, field-reversed configuration

    SciTech Connect (OSTI)

    Conti, F., E-mail: conti@df.unipi.it; Giammanco, F. [Physics Department “E. Fermi,” University of Pisa, Largo B. Pontecorvo 3, 56127 Pisa (Italy) [Physics Department “E. Fermi,” University of Pisa, Largo B. Pontecorvo 3, 56127 Pisa (Italy); Plasma Diagnostics and Technologies Ltd., Via Giuntini 63, 56023 Navacchio (PI) (Italy); Wessel, F. J.; Binderbauer, M. W.; Bolte, N.; Morehouse, M.; Qerushi, A.; Rahman, H. U.; Roche, T.; Slepchenkov, M. [Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688 (United States)] [Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, California 92688 (United States)

    2014-02-15T23:59:59.000Z

    The radial profiles, n(r), B{sub z}(r), and E{sub r}(r), for a Flux-Coil (“inductively driven”), Field-Reversed Configuration (FC-FRC) are measured and compared to the predictions of the Rigid-Rotor Model (RRM), which is an analytic, one-dimensional, time-independent, equilibrium description for the FRC. Injectors mounted on both ends of the confinement vessel provide a pre-fill plasma. Coaxial coils mounted outside the vacuum boundaries of the annular-confinement vessel accelerate the plasma and produce the FRC. The density profile is measured by laser interferometry, the magnetic-field profile using an in-situ probe array, and the electric-field profile using an in-situ, floating-probe array. Free parameters for each profile are measured, which also allow other intrinsic-plasma parameters to be determined, using computer-fit algorithms: null radius, radial thickness, plasma temperature, rotation frequencies, the latter of which are independently verified by spectroscopy. All radial profiles agree with the RRM predictions, for the experimental configuration, parameter regime, and specified-time interval studied here.

  7. Campbell diagrams of weakly anisotropic flexible rotors

    E-Print Network [OSTI]

    Oleg N. Kirillov

    2009-06-09T23:59:59.000Z

    We consider an axi-symmetric rotor perturbed by dissipative, conservative, and non-conservative positional forces originated at the contact with the anisotropic stator. The Campbell diagram of the unperturbed system is a mesh-like structure in the frequency-speed plane with double eigenfrequencies at the nodes. The diagram is convenient for the analysis of the traveling waves in the rotating elastic continuum. Computing sensitivities of the doublets we find that at every particular node the untwisting of the mesh into the branches of complex eigenvalues in the first approximation is generically determined by only four 2x2 sub-blocks of the perturbing matrix. Selection of the unstable modes that cause self-excited vibrations in the subcritical speed range, is governed by the exceptional points at the corners of the singular eigenvalue surfaces--`double coffee filter' and `viaduct'--which are associated with the crossings of the unperturbed Campbell diagram with the definite Krein signature. The singularities connect the problems of wave propagation in the rotating continua with that of electromagnetic and acoustic wave propagation in non-rotating anisotropic chiral media. As mechanical examples a model of a rotating shaft with two degrees of freedom and a continuous model of a rotating circular string passing through the eyelet are studied in detail.

  8. ISABE-2005-1214 Optimum Applications of Four-Port Wave Rotors for Gas Turbines Enhancement

    E-Print Network [OSTI]

    Müller, Norbert

    compressor PT polytropic turbine th thermal WE wave rotor expansion WP wave rotor compression 3 combustor efficiency pressure ratio Subscripts b baseline (untopped) engine comb combustor loss PC polytropic

  9. aero-elasticity rotor aerodynamics: Topics by E-print Network

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

    (UGT) are expected to be a next of incorporating a wave rotor to an ultra-micro gas turbine and the advantages of wave rotors, topping gas turbines at about 70%. Keywords:...

  10. Turning Waste Heat into Power: Ener-G-Rotors and the Entrepreneurial...

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

    Waste Heat into Power: Ener-G-Rotors and the Entrepreneurial Mentorship Program Turning Waste Heat into Power: Ener-G-Rotors and the Entrepreneurial Mentorship Program March 16,...

  11. Operating Modes of a Teeter-Rotor Wind Turbine

    SciTech Connect (OSTI)

    Bir, G. S. (National Renewable Energy Laboratory); Stol, K. (University of Colorado at Boulder)

    1999-02-25T23:59:59.000Z

    We examine the operating modes of a two-bladed teetered wind turbine. Because of the gyroscopic asymmetry of its rotor, this turbine's dynamics can be quite distinct from those of a turbine with three or more blades. This asymmetry leads to system equations with periodic coefficients that are solved using the Floquet approach to extract the correct modal parameters. The system equations are derived using a simple analytical model with four degrees of freedom: cacelle yaw, rotor teeter, and flapping associated with each blade. Results confirm that the turbine modes become more dominated by the centrifugal and gyroscopic effects as the rotor speed increases. They gyroscopic effect may also cause dynamic instability. Under certain design conditions, yaw and teeter modal frequencies may coalesce.

  12. Method and apparatus for assembling permanent magnet rotors

    DOE Patents [OSTI]

    Hsu, J.S.; Adams, D.J.

    1999-06-22T23:59:59.000Z

    A permanent magnet assembly for assembly in large permanent magnet motors and generators includes a two-piece carrier that can be slid into a slot in the rotor and then secured in place using a set screw. The invention also provides an auxiliary carrier device with guide rails that line up with the teeth of the rotor, so that a permanent magnet assembly can be pushed first into a slot, and then down the slot to its proper location. An auxiliary tool is provided to move the permanent magnet assembly into position in the slot before it is secured in place. Methods of assembling and disassembling the magnet assemblies in the rotor are also disclosed. 2 figs.

  13. Preliminary Design Procedure for Gas TurbineTopping Reverse-Flow Wave Rotors

    E-Print Network [OSTI]

    Müller, Norbert

    improvement of a 30 kW microturbine by implementing various wave-rotor topping cycles. Five different

  14. LOSS OF ROTOR ISOTROPY AS A BLADE DAMAGE INDICATOR FOR WIND TURBINE STRUCTURE HEALTH MONITORING SYSTEMS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    LOSS OF ROTOR ISOTROPY AS A BLADE DAMAGE INDICATOR FOR WIND TURBINE STRUCTURE HEALTH MONITORING to simulated vibrations of a rotating rotor. KEYWORDS : wind turbine blade, rotor anisotropy, Floquet analysis, OMA INTRODUCTION Blades of modern wind turbines are complex high-tech structures, and their cost

  15. DETECTION OF IMPULSE-LIKE AIRBORNE SOUND FOR DAMAGE IDENTIFICATION IN ROTOR BLADES OF WIND TURBINES

    E-Print Network [OSTI]

    Boyer, Edmond

    DETECTION OF IMPULSE-LIKE AIRBORNE SOUND FOR DAMAGE IDENTIFICATION IN ROTOR BLADES OF WIND TURBINES burdens of wind turbines. To detect damage of rotor blades, several research projects focus on an acoustic, rotor blade, wind turbine INTRODUCTION There are several publications of non destructive damage

  16. Study of the non-linear dynamic response of a rotor system with faults and uncertainties

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of the non-linear re- sponse in rotor systems with multi-faults (such as unbalance, asymmetric shaft, bow and Ferraris in fixed frame [10]. · The bow is an initial deformation of the rotor which can be caused) or all parts of the rotor (extended bow). Darpe [12] proposes to investigate the influence of a bow

  17. What Stator Current Processing Based Technique to Use for Induction Motor Rotor Faults Diagnosis?

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    What Stator Current Processing Based Technique to Use for Induction Motor Rotor Faults Diagnosis, marked improvement has been achieved in the design and manufacture of stator winding. However, motors and treatment processes. But cage rotor design has undergone little change. As a result, rotor failures now

  18. Non-linear models for the design of solid rotor induction machines

    SciTech Connect (OSTI)

    Zaiem, M.E. (GE 44--LARGE, Saint-Nazaire (France))

    1999-05-01T23:59:59.000Z

    Two finite element methods are used to calculate the steady state performances of solid iron rotor induction machines. They are applied to both smooth and slitted rotor and are used to define the rotor form which provides the maximum torque for the rated value of the slip. The mean torque-slip characteristics calculated under constant voltages are compared to experimental results.

  19. The 5-megawatt power plant with 126 metre rotor diameter

    E-Print Network [OSTI]

    Firestone, Jeremy

    The 5-megawatt power plant with 126 metre rotor diameter #12;Design data Rated power 5,000kW Cut and most powerful wind turbines in the world. The 5M sets new standards for the economic viability similar to conventional power plants. This in turn puts high demands on the control and regulation system

  20. Stator current demodulation for induction machine rotor faults diagnosis

    E-Print Network [OSTI]

    Boyer, Edmond

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

  1. Phase modulated rotor angle encoder for switched reluctance motor drive

    E-Print Network [OSTI]

    Mahajan, Shailendra

    1993-01-01T23:59:59.000Z

    sensor. In an inexpensive systein, the rotor position sensor comprises of a magnetized ring along with Hall etfect sensors or opto-interrupters with slotted clisk. An optical sensor has a, light emitting diode which acts as a light transmitter, enid a...

  2. TLA-55 Rotor Used in Beckman Coulter OptimaTM

    E-Print Network [OSTI]

    Pawlowski, Wojtek

    should be read and understood before operation or maintenance of this equipment is attempted. When you, and tested for safety and reliability as part of a Beckman Coulter ultracentrifuge/rotor system. Its safety or reliability cannot be assured if used in a centrifuge not of Beckman Coulter's manufacture or in a Beckman

  3. Offshore Series Wind Turbine Variable Hub heights & rotor diameters

    E-Print Network [OSTI]

    Firestone, Jeremy

    3.6MW Offshore Series Wind Turbine GE Energy #12;Feature Variable Hub heights & rotor diameters-savings feature, considering the rigors of offshore power generation. The 3.6 MW offshore wind turbine also, for both on and offshore use. Special features include... As the world's first commercially available wind

  4. Measured and predicted rotor performance for the SERI advanced wind turbine blades

    SciTech Connect (OSTI)

    Tangler, J.; Smith, B.; Kelley, N.; Jager, D.

    1992-02-01T23:59:59.000Z

    Measured and predicted rotor performance for the SERI advanced wind turbine blades were compared to assess the accuracy of predictions and to identify the sources of error affecting both predictions and measurements. An awareness of these sources of error contributes to improved prediction and measurement methods that will ultimately benefit future rotor design efforts. Propeller/vane anemometers were found to underestimate the wind speed in turbulent environments such as the San Gorgonio Pass wind farm area. Using sonic or cup anemometers, good agreement was achieved between predicted and measured power output for wind speeds up to 8 m/sec. At higher wind speeds an optimistic predicted power output and the occurrence of peak power at wind speeds lower than measurements resulted from the omission of turbulence and yaw error. In addition, accurate two-dimensional (2-D) airfoil data prior to stall and a post stall airfoil data synthesization method that reflects three-dimensional (3-D) effects were found to be essential for accurate performance prediction. 11 refs.

  5. Performance of twist-coupled blades on variable speed rotors

    SciTech Connect (OSTI)

    Lobitz, D.W.; Veers, P.S.; Laino, D.J.

    1999-12-07T23:59:59.000Z

    The load mitigation and energy capture characteristics of twist-coupled HAWT blades that are mounted on a variable speed rotor are investigated in this paper. These blades are designed to twist toward feather as they bend with pretwist set to achieve a desirable twist distribution at rated power. For this investigation, the ADAMS-WT software has been modified to include blade models with bending-twist coupling. Using twist-coupled and uncoupled models, the ADAMS software is exercised for steady wind environments to generate C{sub p} curves at a number of operating speeds to compare the efficiencies of the two models. The ADAMS software is also used to generate the response of a twist-coupled variable speed rotor to a spectrum of stochastic wind time series. This spectrum contains time series with two mean wind speeds at two turbulence levels. Power control is achieved by imposing a reactive torque on the low speed shaft proportional to the RPM squared with the coefficient specified so that the rotor operates at peak efficiency in the linear aerodynamic range, and by limiting the maximum RPM to take advantage of the stall controlled nature of the rotor. Fatigue calculations are done for the generated load histories using a range of material exponents that represent materials from welded steel to aluminum to composites, and results are compared with the damage computed for the rotor without twist-coupling. Results indicate that significant reductions in damage are achieved across the spectrum of applied wind loading without any degradation in power production.

  6. Active Flow Control on Bidirectional Rotors for Tidal MHK Applications

    SciTech Connect (OSTI)

    Shiu, Henry [Research Engineer; van Dam, Cornelis P. [Professor

    2013-08-22T23:59:59.000Z

    A marine and hydrokinetic (MHK) tidal turbine extracts energy from tidal currents, providing clean, sustainable electricity generation. In general, all MHK conversion technologies are confronted with significant operational hurdles, resulting in both increased capital and operations and maintenance (O&M) costs. To counter these high costs while maintaining reliability, MHK turbine designs can be simplified. Prior study found that a tidal turbine could be cost-effectively simplified by removing blade pitch and rotor/nacelle yaw. Its rotor would run in one direction during ebb and then reverse direction when the current switched to flood. We dubbed such a turbine a bidirectional rotor tidal turbine (BRTT). The bidirectional hydrofoils of a BRTT are less efficient than conventional hydrofoils and capture less energy, but the elimination of the pitch and yaw systems were estimated to reduce levelized cost of energy by 7.8%-9.6%. In this study, we investigated two mechanisms for recapturing some of the performance shortfall of the BRTT. First, we developed a novel set of hydrofoils, designated the yy series, for BRTT application. Second, we investigated the use of active flow control via microtabs. Microtabs are small deployable/retractable tabs, typically located near the leading or trailing edge of an air/hydrofoil with height on the order of the boundary layer thickness (1% - 2% of chord). They deploy approximately perpendicularly to the foil surface and, like gurney flaps and plain flaps, globally affect the aerodynamics of the airfoil. By strategically placing microtabs and selectively deploying them based on the direction of the inflow, performance of a BRTT rotor can be improved while retaining bidirectional operation. The yy foils were computationally designed and analyzed. They exhibited better performance than the baseline bidirectional foil, the ellipse. For example, the yyb07cn-180 had 14.7% higher (l/d)max than an ellipse of equal thickness. The yyb07cn family also had higher c{sub p,min} than equivalently thick ellipses, indicating less susceptibility to cavitation. Microtabs applied on yy foils demonstrated improved energy capture. A series of variable speed and constant speed rotors were developed with the yyb07cn family of hydrofoils. The constant speed yyb07cn rotor (yy-B02-Rcs,opt) captured 0.45% more energy than the equivalent rotor with ellipses (e-B02-Rcs,opt). With microtabs deployed (yy?t-B02-Rcs,opt), the energy capture increase over the rotor with ellipses was 1.05%. Note, however, that microtabs must be applied judiciously to bidirectional foils. On the 18% thick ellipse, performance decreased with the addition of microtabs. Details of hydrofoil performance, microtab sizing and positioning, rotor configurations, and revenue impacts are presented herein.

  7. Analysis of a teetered, variable-speed rotor: final report

    SciTech Connect (OSTI)

    Weber, T.L.; Wilson, R.E.; Walker, S.N. (Oregon State Univ., Corvallis, OR (USA). Dept. of Mechanical Engineering) [Oregon State Univ., Corvallis, OR (USA). Dept. of Mechanical Engineering

    1991-06-01T23:59:59.000Z

    A computer model of a horizontal axis wind turbine (HOOT) with four structural degrees of freedom has been derived and verified. The four degrees of freedom include flapwise motion of the blades, teeter motion, and variable rotor speed. Options for the variable rotor speed include synchronous, induction, and constant-tip speed generator models with either start, stop, or normal operations. Verification is made by comparison with analytical solutions and mean and cyclic ESI-80 data. The Veers full-field turbulence model is used as a wind input for a synchronous and induction generator test case during normal operation. As a result of the comparison, it is concluded that the computer model can be used to predict accurately mean and cyclic loads with a turbulent wind input. 47 refs., 19 figs.

  8. Sweep-twist adaptive rotor blade : final project report.

    SciTech Connect (OSTI)

    Ashwill, Thomas D.

    2010-02-01T23:59:59.000Z

    Knight & Carver was contracted by Sandia National Laboratories to develop a Sweep Twist Adaptive Rotor (STAR) blade that reduced operating loads, thereby allowing a larger, more productive rotor. The blade design used outer blade sweep to create twist coupling without angled fiber. Knight & Carver successfully designed, fabricated, tested and evaluated STAR prototype blades. Through laboratory and field tests, Knight & Carver showed the STAR blade met the engineering design criteria and economic goals for the program. A STAR prototype was successfully tested in Tehachapi during 2008 and a large data set was collected to support engineering and commercial development of the technology. This report documents the methodology used to develop the STAR blade design and reviews the approach used for laboratory and field testing. The effort demonstrated that STAR technology can provide significantly greater energy capture without higher operating loads on the turbine.

  9. Adaptor assembly for coupling turbine blades to rotor disks

    DOE Patents [OSTI]

    Garcia-Crespo, Andres Jose; Delvaux, John McConnell

    2014-09-23T23:59:59.000Z

    An adaptor assembly for coupling a blade root of a turbine blade to a root slot of a rotor disk is described. The adaptor assembly includes a turbine blade having a blade root and an adaptor body having an adaptor root. The adaptor body defines a slot having an open end configured to receive the blade root of the turbine blade such that the adaptor root of the adaptor body and the blade root of the turbine blade are adjacent to one another when the blade root of the turbine blade is positioned within the slot. Both the adaptor root of the adaptor body and the blade root of the turbine blade are configured to be received within the root slot of the rotor disk.

  10. Blade platform seal for ceramic/metal rotor assembly

    DOE Patents [OSTI]

    Wertz, John L. (Indianapolis, IN)

    1982-01-01T23:59:59.000Z

    A combination ceramic and metal turbine rotor for use in high temperature gas turbine engines includes a metal rotor disc having a rim with a plurality of circumferentially spaced blade root retention slots therein to receive a plurality of ceramic blades, each including side platform segments thereon and a dovetail configured root slidably received in one of the slots. Adjacent ones of the platform segments including edge portions thereon closely spaced when the blades are assembled to form expansion gaps in an annular flow surface for gas passage through the blades and wherein the assembly further includes a plurality of unitary seal members on the rotor connected to its rim and each including a plurality of spaced, axially extending, flexible fingers that underlie and conform to the edge portions of the platform segments and which are operative at turbine operating temperatures and speeds to distribute loading on the platform segments as the fingers are seated against the underside of the blade platforms to seal the gaps without undesirably stressing thin web ceramic sections of the platform.

  11. Oxygen-Diffused Titanium as a Candidate Brake Rotor Material

    SciTech Connect (OSTI)

    Qu, Jun [ORNL; Blau, Peter Julian [ORNL; Jolly, Brian C [ORNL

    2009-01-01T23:59:59.000Z

    Titanium alloys are one of several candidate materials for the next generation of truck disk brake rotors. Despite their advantages of lightweight relative to cast iron and good strength and corrosion resistance, titanium alloys are unlikely to be satisfactory brake rotor materials unless their friction and wear behavior can be significantly improved. In this study, a surface engineering process oxygen diffusion was applied to titanium rotors and has shown very encouraging results. The oxygen diffused Ti-6Al-4V (OD-Ti) was tested on a sub-scale brake tester against a flat block of commercial brake lining material and benchmarked against several other Ti-based materials, including untreated Ti-6Al-4V, ceramic particle-reinforced Ti composites (MMCs), and a thermal-spray-coated Ti alloy. With respect to friction, the OD-Ti outperformed all other candidate materials under the imposed test conditions with the friction coefficient remaining within a desirable range of 0.35-0.50, even under the harshest conditions when the disk surface temperature reached nearly 600 ?C. In addition, the OD-Ti showed significantly improved wear-resistance over the non-treated one and was even better than the Ti-based composite materials.

  12. Preliminary structural design conceptualization for composite rotor for verdant power water current turbine

    SciTech Connect (OSTI)

    Paquette, J. A.

    2012-03-01T23:59:59.000Z

    Sandia National Laboratories (SNL) and Verdant Power Inc. (VPI) have partnered under a Cooperative Research and Development Agreement (CRADA) to develop a new kinetic hydropower rotor. The rotor features an improved hydrodynamic and structural design which features state-of-the-art technology developed for the wind industry. The new rotor will have higher energy capture, increased system reliability, and reduction of overall cost of energy. This project was divided into six tasks: (1) Composite Rotor Project Planning and Design Specification; (2) Baseline Fatigue Testing and Failure analysis; (3) Develop Blade/Rotor Performance Model; (4) Hydrofoil Survey and Selection; (5) FEM Structural Design; and (6) Develop Candidate Rotor Designs and Prepare Final Report.

  13. CFD analysis of rotating two-bladed flatback wind turbine rotor.

    SciTech Connect (OSTI)

    van Dam, C.P. (University of California, David, CA); Chao, David D.; Berg, Dale E. (University of California, David, CA)

    2008-04-01T23:59:59.000Z

    The effects of modifying the inboard portion of the NREL Phase VI rotor using a thickened, flatback version of the S809 design airfoil are studied using a three-dimensional Reynolds-averaged Navier-Stokes method. A motivation for using such a thicker airfoil design coupled with a blunt trailing edge is to alleviate structural constraints while reducing blade weight and maintaining the power performance of the rotor. The calculated results for the baseline Phase VI rotor are benchmarked against wind tunnel results obtained at 10, 7, and 5 meters per second. The calculated results for the modified rotor are compared against those of the baseline rotor. The results of this study demonstrate that a thick, flatback blade profile is viable as a bridge to connect structural requirements with aerodynamic performance in designing future wind turbine rotors.

  14. Pump impeller-shroud leakage path forces: their effect on a Jeffcott rotor

    E-Print Network [OSTI]

    Williams, James Philip

    1988-01-01T23:59:59.000Z

    for finding the frequency of free vibration as well as system stability. All results lead to the conclusion that the forces have little influence on natural frequency but can have appreciable effects on system stability. Specifically, at higher values.... Figure 15. Frequency response: whirl amplitude. Frequency response: phase angle, Rotor orbit during free vibration. Time history of rotor whirl frequency ratio during free vibration, 32 32 36 36 Figure 16. Figure 17. Rotor orbit during...

  15. Rotor parameter determination for the Brushless Doubly Fed (Induction) Machine (BDFM)

    E-Print Network [OSTI]

    McMahon, R. A.; Roberts, P. C.; Tatlow, M. R.; Abdi, E.; Broekhof, A.; Abdi, S.

    2015-06-19T23:59:59.000Z

    Zeff Impedance of individual rotor loop (?) nr rotor turns ratio I. INTRODUCTION Contemporary interest in the BDFM principally arises as it is a potential alternative to the slip-ring induction generator widely used in wind turbines although it can also... , the equivalent circuit forms a valuable design tool, enabling candidate machine designs to be rapidly evaluated. In particular rotor parameters are important in determining the pull out torque of the machine as well as low-voltage ride through performance in wind...

  16. Methods and apparatus for reduction of asymmetric rotor loads in wind turbines

    DOE Patents [OSTI]

    Moroz, Emilian Mieczyslaw; Pierce, Kirk Gee

    2006-10-10T23:59:59.000Z

    A method for reducing load and providing yaw alignment in a wind turbine includes measuring displacements or moments resulting from asymmetric loads on the wind turbine. These measured displacements or moments are used to determine a pitch for each rotor blade to reduce or counter asymmetric rotor loading and a favorable yaw orientation to reduce pitch activity. Yaw alignment of the wind turbine is adjusted in accordance with the favorable yaw orientation and the pitch of each rotor blade is adjusted in accordance with the determined pitch to reduce or counter asymmetric rotor loading.

  17. Tuning thermal mismatch between turbine rotor parts with a thermal medium

    DOE Patents [OSTI]

    Schmidt, Mark Christopher (Niskayuna, NY)

    2001-01-01T23:59:59.000Z

    In a turbine rotor, an aft shaft wheel and the final-stage wheel of the rotor are coupled together, including by a rabbeted joint. During shutdown and startup of the turbine, a thermal mismatch between the aft shaft wheel and final-stage wheel is avoided by respectively heating and cooling the aft shaft wheel to maintain the thermal mismatch within acceptable limits, thereby avoiding opening of the rabbeted joint and the potential for unbalancing the rotor and rotor vibration. The thermal medium may be supplied by piping in the aft bearing cavity into the cavity between the forward closure plate and the aft shaft wheel.

  18. Neural Network Based Modeling of a Large Steam Turbine-Generator Rotor Body Parameters from On-Line Disturbance Data

    E-Print Network [OSTI]

    Neural Network Based Modeling of a Large Steam Turbine-Generator Rotor Body Parameters from On technique to estimate and model rotor- body parameters of a large steam turbine-generator from real time

  19. Thermodynamic Cycle Analysis for Wave Rotor Combustor Based Combined Cycle Jessica Collins1

    E-Print Network [OSTI]

    Zhou, Yaoqi

    Thermodynamic Cycle Analysis for Wave Rotor Combustor Based Combined Cycle Jessica Collins1 , Brian of Engineering and Technology The conventional combustor that exists in today's market is a constant pressure device; whereas, the wave rotor combustor investigated in the present research is a constant volume

  20. Sparkr Blade Test Centre Wind turbines with a rotor diameter exceed-

    E-Print Network [OSTI]

    Sparkćr Blade Test Centre Wind turbines with a rotor diameter exceed- ing 2 metres must have a type of a wind turbine. Failure of a rotor blade in service often involves damage of the entire turbine operating type cer- tification systems for wind turbines. Reg. no. 427 The Sparkćr Blade Test Centre became

  1. Molecular rotors: synthesis and evaluation as viscosity sensors Jeyanthy Sutharsan a

    E-Print Network [OSTI]

    Theodorakis, Emmanuel

    Molecular rotors: synthesis and evaluation as viscosity sensors Jeyanthy Sutharsan a , Darcy-mechanical viscosity sensors. These compounds, referred to as molecular rotors, belong to a class of fluorescent probes present the synthesis and spectroscopic characterization of these compounds as viscosity sensors

  2. The Ultra-micro Wave Rotor Research at Michigan State University Florin Iancu, Janusz Piechna*

    E-Print Network [OSTI]

    MĂĽller, Norbert

    University of Technology 24 Nowowiejska Str., 00-665 Warsaw, Poland ABSTRACT Ultra Micro Gas Turbines (Uµ concepts of incorporating a wave rotor to an ultra-micro gas turbine and the advantages of wave rotors be estimated at about 70%. 1. INTRODUCTION Starting in 1995, with the MIT "Micro Gas Turbine" project

  3. Numerical modeling of heat transfer and fluid flow in rotor-stator cavities with throughflow

    E-Print Network [OSTI]

    Boyer, Edmond

    Numerical modeling of heat transfer and fluid flow in rotor-stator cavities with throughflow S modeling of the turbulent flow in a rotor-stator cavity subjected to a superimposed throughflow with heat the dynamical effects from the heat transfer process. The fluid flow in an enclosed disk system with axial

  4. Numerical modeling of heat transfer and fluid flow in rotor-stator cavities with throughflow

    E-Print Network [OSTI]

    Boyer, Edmond

    Numerical modeling of heat transfer and fluid flow in rotor-stator cavities with throughflow S in a rotor-stator cavity subjected to a superimposed throughflow with heat transfer. Nu- merical predictions field from the heat transfer process. The turbulent flux is approximated by a gradient hypothesis

  5. A New Approach to Detect Broken Rotor Bars in Induction Machines by Current Spectrum Analysis

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    the Fourier Transform of one stator current to make detection. But where the other methods use the Fourier. It is well- known that an interruption of a manufacturing process due to a mechanical or electrical problem rotor bars or cracked rotor end ring), stator faults (opening of a stator phase or inter-turn short

  6. Effect of Cooling Flow on the Operation of a Hot Rotor-Gas Foil Bearing System 

    E-Print Network [OSTI]

    Ryu, Keun

    2012-02-14T23:59:59.000Z

    comprehensive measurements of bearing temperatures and shaft dynamics conducted on a hollow rotor supported on two first generation GFBs. The hollow rotor (1.36 kg, 36.51 mm OD and 17.9 mm ID) is heated from inside to reach an outer surface temperature of 120...

  7. Numerical Investigation of a Wind Turbine Rotor with an aerodynamically redesigned hub-region

    E-Print Network [OSTI]

    Numerical Investigation of a Wind Turbine Rotor with an aerodynamically redesigned hub-region J methods on a redesigned modern Mega-Watt sized wind turbine, where the new design includes an increase of the blade in the vicinity of the wind turbine nacelle, to obtain an aerodynamically more efficient rotor

  8. RIS0-M-2432 SIMPLIFIED LAWS OF SIMIALRITY FOR WIND TURBINE ROTORS

    E-Print Network [OSTI]

    RIS0-M-2432 SIMPLIFIED LAWS OF SIMIALRITY FOR WIND TURBINE ROTORS Helge Petersen The Test Station for Small Windmills Abstract, Laws of similarity or scaling laws for the character- istics of a wind turbine rotor are of importance to the designer even during the initial design phase of a new wind turbine con

  9. Advanced Flywheel Composite Rotors: Low-Cost, High-Energy Density Flywheel Storage Grid Demonstration

    SciTech Connect (OSTI)

    None

    2010-10-01T23:59:59.000Z

    GRIDS Project: Boeing is developing a new material for use in the rotor of a low-cost, high-energy flywheel storage technology. Flywheels store energy by increasing the speed of an internal rotor —slowing the rotor releases the energy back to the grid when needed. The faster the rotor spins, the more energy it can store. Boeing’s new material could drastically improve the energy stored in the rotor. The team will work to improve the storage capacity of their flywheels and increase the duration over which they store energy. The ultimate goal of this project is to create a flywheel system that can be scaled up for use by electric utility companies and produce power for a full hour at a cost of $100 per kilowatt hour.

  10. Hot Coal for Christmas: Dust Formation in the Swept-Up Shell Around The Peculiar Type Ib Supernova 2006jc

    E-Print Network [OSTI]

    Smith, Nathan; Filippenko, Alexei V

    2007-01-01T23:59:59.000Z

    We present evidence for the formation of dust grains in an unusual Type Ib SN based on late-time spectra of SN 2006jc. The progenitor suffered a giant outburst qualitatively similar to those seen in LBVs just 2 years prior to the SN, and we speculate that the dust formation we observe is an indirect consequence of that event. The key evidence for dust formation seen in our optical spectra is (1) the appearance of a strong continuum emission source at red wavelengths, and (2) fading of the redshifted sides of narrow HeI emission lines. These two observed characteristics provide the strongest case yet for dust formation in any Type Ib/c SN. Both developments occurred simultaneously between 51 and 75 days after peak brightness, which is quick compared to other dusty SNe. The high temperature of the dust implies carbon and not silicates, and we describe how infrared photometry may test this conjecture. Geometric considerations indicate dust formation occurring in the dense gas swept-up by the forward shock, and n...

  11. Short range micro-power impulse radar with high resolution swept range gate with damped transmit and receive cavities

    DOE Patents [OSTI]

    McEwan, T.E.

    1998-06-30T23:59:59.000Z

    A radar range finder and hidden object locator is based on ultra-wide band radar with a high resolution swept range gate. The device generates an equivalent time amplitude scan with atypical range of 4 inches to 20 feet, and an analog range resolution as limited by a jitter of on the order of 0.01 inches. A differential sampling receiver is employed to effectively eliminate ringing and other aberrations induced in the receiver by the near proximity of the transmit antenna, so a background subtraction is not needed, simplifying the circuitry while improving performance. Uses of the invention include a replacement of ultrasound devices for fluid level sensing, automotive radar, such as cruise control and parking assistance, hidden object location, such as stud and rebar finding. Also, this technology can be used when positioned over a highway lane to collect vehicle count and speed data for traffic control. Techniques are used to reduce clutter in the receive signal, such as decoupling the receive and transmit cavities by placing a space between them, using conductive or radiative damping elements on the cavities, and using terminating plates on the sides of the openings. 20 figs.

  12. Diffusion of Cosmic Rays in a Multiphase Interstellar Medium Swept-Up by a Supernova Remnant Blast Wave

    E-Print Network [OSTI]

    Roh, Soonyoung; Inoue, Tsuyoshi

    2015-01-01T23:59:59.000Z

    Supernova remnants (SNRs) are one of the most energetic astrophysical events and are thought to be the dominant source of Galactic cosmic rays (CRs). A recent report on observations from the Fermi satellite has shown a signature of pion decay in the gamma-ray spectra of SNRs. This provides strong evidence that high-energy protons are accelerated in SNRs. The actual gamma-ray emission from pion decay should depend on the diffusion of CRs in the interstellar medium. In order to quantitatively analyse the diffusion of high-energy CRs from acceleration sites, we have performed test particle numerical simulations of CR protons using a three-dimensional magnetohydrodynamics (MHD) simulation of an interstellar medium swept-up by a blast wave. We analyse the diffusion of CRs at a length scale of order a few pc in our simulated SNR, and find the diffusion of CRs is precisely described by a Bohm diffusion, which is required for efficient acceleration at least for particles with energies above 30 TeV for a realistic int...

  13. Short range micro-power impulse radar with high resolution swept range gate with damped transmit and receive cavities

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1998-01-01T23:59:59.000Z

    A radar range finder and hidden object locator is based on ultra-wide band radar with a high resolution swept range gate. The device generates an equivalent time amplitude scan with atypical range of 4 inches to 20 feet, and an analog range resolution as limited by a jitter of on the order of 0.01 inches. A differential sampling receiver is employed to effectively eliminate ringing and other aberrations induced in the receiver by the near proximity of the transmit antenna, so a background subtraction is not needed, simplifying the circuitry while improving performance. Uses of the invention include a replacement of ultrasound devices for fluid level sensing, automotive radar, such as cruise control and parking assistance, hidden object location, such as stud and rebar finding. Also, this technology can be used when positioned over a highway lane to collect vehicle count and speed data for traffic control. Techniques are used to reduce clutter in the receive signal, such as decoupling the receive and transmit cavities by placing a space between them, using conductive or radiative damping elements on the cavities, and using terminating plates on the sides of the openings.

  14. Vibration analysis of rotor systems using reduced subsystem models

    E-Print Network [OSTI]

    Fan, Uei-Jiun

    1985-01-01T23:59:59.000Z

    and concern. Thanks are also extended to Dr. Alan B. Alter and Dr. Charles F. Rettleborough for their contribution to my academic program at Texas A&M University. NOMENCLATURE [] [A] [Cl [D?l [r?] (F} [G] [l-l ['~, , l ['J, ] Jrz [K] [Ml {p... of the spinning rotor can be written as m. R. Z + f. = f. + m. ai?y + m. ai?p i iZ iZ iX i iX i iY + '2 id&iY ?iY ?iY ' & iP&ix ' e iXZ ' & iYZ (la) 2 ?i id( iX iX ?ix ~ ip~iY ~ iYZ ~iXZ (lb) where / Hydrogen I or o 0 p um'p Hain Combusrion Chamber Z...

  15. Assessment of research needs for wind turbine rotor materials technology

    SciTech Connect (OSTI)

    Not Available

    1991-01-01T23:59:59.000Z

    Wind-driven power systems is a renewable energy technology that is still in the early stages of development. Wind power plants installed in early 1980s suffered structural failures chiefly because of incomplete understanding of wind forces (turbulent), in some cases because of poor product quality. Failures of rotor blades are now somewhat better understood. This committee has examined the experience base accumulated by wind turbines and the R and D programs sponsored by DOE. It is concluded that a wind energy system such as is described is within the capability of engineering practice; however because of certain gaps in knowledge, and the presence of only one major integrated manufacturer of wind power machines in the USA, a DOE R and D investment is still required.

  16. Final project report: High energy rotor development, test and evaluation

    SciTech Connect (OSTI)

    NONE

    1996-09-01T23:59:59.000Z

    Under the auspices of the {open_quotes}Government/Industry Wind Technology Applications Project{close_quotes} [{open_quotes}Letter of Interest{close_quotes} (LOI) Number RC-1-11101], Flo Wind Corp. has successfully developed, tested, and delivered a high-energy rotor upgrade candidate for their 19-meter Vertical Axis Wind Turbine. The project included the demonstration of the innovative extended height-to-diameter ratio concept, the development of a continuous span single-piece composite blade, the demonstration of a continuous blade manufacturing technique, the utilization of the Sandia National Laboratories developed SNLA 2150 natural laminar flow airfoil and the reuse of existing wind turbine and wind power plant infrastructure.

  17. Adaptor assembly for coupling turbine blades to rotor disks

    SciTech Connect (OSTI)

    Delvaux, John McConnel; Garcia-Crespo, Andres Jose; Joyce, Kilmer Joseph; Tindell, Allan Randall

    2014-06-03T23:59:59.000Z

    An adaptor assembly for coupling a blade root of a turbine blade to a root slot of a rotor disk is disclosed. The adaptor assembly may generally include an adaptor body having a root configured to be received within the root slot. The adaptor body may also define a slot having an open end configured to receive the blade root. The adaptor body may further define a channel. The adaptor assembly may also include a plate having an outwardly extending foot. The foot may be configured to be received within the channel. Additionally, the plate may be configured to cover at least a portion of the open end of the slot when the foot is received within the channel.

  18. Cooling system for a bearing of a turbine rotor

    DOE Patents [OSTI]

    Schmidt, Mark Christopher (Niskayuna, NY)

    2002-01-01T23:59:59.000Z

    In a gas turbine, a bore tube assembly radially inwardly of an aft bearing conveys cooling steam to the buckets of the turbine and returns the cooling steam to a return. To cool the bearing and thermally insulate the bearing from the cooling steam paths, a radiation shield is spaced from the bore tube assembly by a dead air gap. Additionally, an air passageway is provided between the radiation shield and the inner surface of an aft shaft forming part of the rotor. Air is supplied from an inlet for flow along the passage and radially outwardly through bores in the aft shaft disk to cool the bearing and insulate it from transfer of heat from the cooling steam.

  19. WindPACT Turbine Rotor Design Study: June 2000--June 2002 (Revised)

    SciTech Connect (OSTI)

    Malcolm, D. J.; Hansen, A. C.

    2006-04-01T23:59:59.000Z

    This report presents the results of the turbine rotor study completed by Global Energy Concepts (GEC) as part of the U.S. Department of Energy's WindPACT (Wind Partnership for Advanced Component Technologies) project. The purpose of the WindPACT project is to identify technology improvements that will enable the cost of energy from wind turbines to fall to a target of 3.0 cents/kilowatt-hour in low wind speed sites. The study focused on different rotor configurations and the effect of scale on those rotors.

  20. Rotordynamic performance of a rotor supported on bump-type foil bearings: experiments and predictions

    E-Print Network [OSTI]

    Rubio Tabares, Dario

    2006-08-16T23:59:59.000Z

    Ww P L D= ? ? , Load coefficient Wn Bearing load [N] X, Y Horizontal and vertical rotor displacements xG Distance between the rotor CG to the free end [mm] z Damping ratio ? ( ) K E T t? = ? . FB dimensionless stiffness coefficient ? 26... length [mm] m Imbalance mass [kg] zm ? z z D ? = ? ?? , Total axial flow rate [kg/s] M, MB Rotor mass and bearing mass [kg] zM ? ( )2 23 24 s a z V g P PcM R T L ? ? = ? ? ? ? , Mass flow rate per bearing circumferential length [kg/m.s] N1...

  1. An efficient algorithm for blade loss simulations applied to a high-order rotor dynamics problem

    E-Print Network [OSTI]

    Parthasarathy, Nikhil Kaushik

    2004-09-30T23:59:59.000Z

    In this thesis, a novel approach is presented for blade loss simulation of an aircraft gas turbine rotor mounted on rolling element bearings with squeeze film dampers, seal rub and enclosed in a flexible housing. The modal truncation augmentation...

  2. The effect of imbalance distribution and measurement locations on critical speeds in a turboprop engine rotor

    E-Print Network [OSTI]

    Marin, Manuel

    1996-01-01T23:59:59.000Z

    . This study examines the influence of imbalance distribution and vibration measurement location on critical speeds for a model turboprop engine rotor. Imbalance response measurements are presented for a full scale model mounted in rolling bearings with squeeze...

  3. A study of chaos in a rotor system supported by ball bearings

    E-Print Network [OSTI]

    Ortiz, Steven Rey

    2013-02-22T23:59:59.000Z

    . Numerous researchers have published a myriad of papers on the application of chaos theory to mechanical, electrical and biological systems. However, control theories of chaos have been in existence for only a decade and have not been applied to rotor...

  4. Identification of force coefficients in flexible rotor-bearing systems - enhancements and further validations

    E-Print Network [OSTI]

    Balantrapu, Achuta Kishore Rama Krishna

    2005-11-01T23:59:59.000Z

    Rotor-bearing system characteristics, such as natural frequencies, mode shapes, stiffness and damping coefficients, are essential to diagnose and correct vibration problems during system operation. Of the above characteristics, accurate...

  5. Effects of rotor tip clearance on an embedded compressor stage performance

    E-Print Network [OSTI]

    Sakulkaew, Sitanun

    2012-01-01T23:59:59.000Z

    Compressor efficiency variation with rotor tip gap is assessed using numerical simulations on an embedded stage representative of that in a large industrial gas turbine with Reynolds number being approximately 2 x 106 to ...

  6. An embedded controller for quad-rotor flying robots running distributed algorithms

    E-Print Network [OSTI]

    Julian, Brian John

    2009-01-01T23:59:59.000Z

    Multiple collaborating quad-rotor flying robots are useful in a broad range of applications, from surveillance with onboard cameras to reconfiguration of wireless networks. For these applications, it is often advantageous ...

  7. Measurements of imbalance response for a rigid rotor fully supported on squeeze film dampers

    E-Print Network [OSTI]

    Lubell, Daniel Roger

    2000-01-01T23:59:59.000Z

    speeds. Adding damping to a rotor-bearing system reduces vibration amplitudes and provides isolation from the support structure. Squeeze film dampers (SFD), if properly employed, have been shown to effectively provide viscous damping and attenuate...

  8. American Institute of Aeronautics and Astronautics Wave Rotor Research Program at Michigan State University

    E-Print Network [OSTI]

    MĂĽller, Norbert

    and power generation purposes including utilization of wave rotors for microturbines, ultra-micro gas turbines, and water refrigeration systems. In collaboration with the research team at Warsaw University

  9. The cost of noise reduction for departure and arrival operations of commercial tilt rotor aircraft

    E-Print Network [OSTI]

    Faulkner, Henry B.

    1976-01-01T23:59:59.000Z

    The relationship between direct operating cost (DOC) and noise annoyance due to a departure and an arrival operation was developed for commercial tilt rotor aircraft. This was accomplished by generating a series of tilt ...

  10. Crossflow instability in rotor-stator flows with throughflow , M.-P. Chauve

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Crossflow instability in rotor-stator flows with throughflow S. Poncet , M.-P. Chauve We study. As the axial velocity profiles exhibit inflexion points, this instability is of crossflow type. From

  11. A RIGOROUS, ENGINEER-FRIENDLY APPROACH FOR MODELING REALISTIC, COMPOSITE ROTOR BLADES

    E-Print Network [OSTI]

    Yu, Wenbin

    structures of the type encountered in wind turbine blades, helicopter rotor blades, and the like such as wind turbine blades lead to a splitting of the problem into a (usually) linear, two-dimensional cross

  12. Method and apparatus for reducing rotor blade deflections, loads, and/or peak rotational speed

    DOE Patents [OSTI]

    Moroz, Emilian Mieczyslaw; Pierce, Kirk Gee

    2006-10-17T23:59:59.000Z

    A method for reducing at least one of loads, deflections of rotor blades, or peak rotational speed of a wind turbine includes storing recent historical pitch related data, wind related data, or both. The stored recent historical data is analyzed to determine at least one of whether rapid pitching is occurring or whether wind speed decreases are occurring. A minimum pitch, a pitch rate limit, or both are imposed on pitch angle controls of the rotor blades conditioned upon results of the analysis.

  13. Analytical determination of performance degradation on a helicopter main rotor due to ice accretion

    E-Print Network [OSTI]

    Camba, Javier

    1986-01-01T23:59:59.000Z

    ANALYTICAL DETERMINATION OF PERFORMANCE DEGRADATION ON A HELICOPTER MAIN ROTOR DUE TO ICE ACCRETION A Thesis by JAVIER CAMBA III Submitted to the Graduate College of Texas AIIM University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 1986 Major Subject: Aerospace Engineering ANALYTICAL DETERMINATION OF PERFORMANCE DEGRADATION ON A HELICOPTER MAIN ROTOR DUE TO ICE ACCRETION A Thesis by JAVIER CAMBA III Approval as to style and content by...

  14. Genetic icing effects on forward flight performance of a model helicopter rotor

    E-Print Network [OSTI]

    Tinetti-Sanchez, Ana Fiorella

    1987-01-01T23:59:59.000Z

    GENERIC ICING EFFECTS ON FORWARD FLIGHT PERFORMANCE OF A MODEL HELICOPTER ROTOR A Thesis ANA FIORELLA TINETTI-SANCHEZ Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 1987 Major Subject: Aerospace Engineering GENERIC ICING EFFECTS ON FORWARD FLIGHT PERFORMANCE OF A MODEL HELICOPTER ROTOR A Thesis by ANA FIORELLA TINETTI-SANCHEZ Approved as to style and content by: Kenneth D. Korkan...

  15. Experimental response of a rotor supported on Rayleigh step gas bearings

    E-Print Network [OSTI]

    Zhu, Xuehua

    2004-11-15T23:59:59.000Z

    synchronous responses to imbalance correlate well with the measurements, however. The Rayleigh step gas bearing shows similar characteristics to the flexure pivot tilting pad bearing (FPTPB) tested in 2003. However, the test Rayleigh step gas bearings...] ? A Air density at ambient pressure [kg/m3] viii X, Y, z Inertial coordinate system Zij Impedance force coefficients; i, j = X ,Y [N/m] ? c Rotor critical speed [rad/s] ? ,, ? Rotor rotational speed and excitation frequency [rad/s...

  16. The effect of teeth-on-stator labyrinth seals on rotor imbalance response

    E-Print Network [OSTI]

    Conway, Eileen Marie

    1991-01-01T23:59:59.000Z

    ) Walter Bradley (Head of Deparnnent) Richanl M. exander (Member) Susan C. Geller (Member) August 1991 ABSTRACT The Effect of Teeth~-Stator Labyrinth Seals on Rotor Imbalance Response. (August 1991) Eileen Marie Conway, B. S. . Virginia... for calculating critical speeds created by a disk bouncing on a rotor. Pmdicted critical speeds agree well with experimental results. DEDICATION This thesis is dedicated to the memory of William E. Hayman, who loved to kick the tin around. but encouraged me...

  17. Turning Waste Heat into Power: Ener-G-Rotors and the Entrepreneurial Mentorship Program

    Broader source: Energy.gov [DOE]

    If you’ve ever driven by an industrial plant, you’ve probably noticed big white plumes rising from the tops of the facilities. While it might look like smoke or pollution at first glance, most of the time those white plumes are comprised of steam and heat, or what Ener-G-Rotors CEO Michael Newell calls waste heat. Mike and the researchers of Ener-G-Rotors are finding ways to use this escaped steam and turn it into energy.

  18. Floating Offshore Wind Turbine Dynamics: Large-Angle Motions in Euler-Space

    E-Print Network [OSTI]

    Sweetman, Bert

    wind turbines in deep water, where environmental forcing could subject the rotor to meaningful angular relative to (X,Y,Z) CT Thrust coefficient, used to calculate wind force on the blade swept area 1Floating Offshore Wind Turbine Dynamics: Large-Angle Motions in Euler-Space Bert Sweetman Texas A

  19. Control system for a wound-rotor motor

    DOE Patents [OSTI]

    Ellis, James N. (Chatsworth, CA)

    1983-01-01T23:59:59.000Z

    A load switching circuit for switching two or more transformer taps under load carrying conditions includes first and second parallel connected bridge rectifier circuits which control the selective connection of a direct current load to taps of a transformer. The first bridge circuit is normally conducting so that the load is connected to a first tap through the first bridge circuit. To transfer the load to the second tap, a switch is operable to connect the second bridge circuit to a second tap, and when the second bridge circuit begins to conduct, the first bridge circuit ceases conduction because the potential at the second tap is higher than the potential at the first tap, and the load is thus connected to the second tap through the second bridge circuit. The load switching circuit is applicable in a motor speed controller for a wound-rotor motor for effecting tap switching as a function of motor speed while providing a stepless motor speed control characteristic.

  20. Experimental design and study of Free Rotor River Turbine

    SciTech Connect (OSTI)

    Nepali, D.B.

    1987-01-01T23:59:59.000Z

    Terrace irrigation along the rivers of Nepal is the vital problem of farmers in the remote villages. The existing turbines and irrigation systems are not feasible without civil structures, and suffer from the lack of resources and financial problems. A simple and inexpensive underwater Free Rotor River Turbine (FRRT) which extracts power ranging from a fraction of a HP up to 25 HP from the velocity of the running water in a river or stream was developed. The power obtained from the turbine can be used to run a pump to lift water for drinking purposes and for irrigation along the river banks during the dry season and early part of the wet season. Various designs of models have been tested in the laboratory to find the optimum pitch angle, shape and size of blades, and optimum number of blades in order to accomplish the cheapest, simplest, and most efficient turbine. The effect of diameter of turbine, velocity of water and torque produced by the turbines were studied,and the effect of simple linear twist on blades is discussed.

  1. Operation of a test bed axial-gap brushless DC rotor with a superconducting stator

    SciTech Connect (OSTI)

    McKeever, J.W.; Sohns, C.W.; Schwenterly, S.W.; Young, R.W. Sr.; Campbell, V.W.; Hickey, M.H.; Ott, G.W. [Oak Ridge National Lab., TN (United States); Bailey, J.M. [Univ. of Tennessee, Knoxville, TN (United States)

    1994-12-31T23:59:59.000Z

    A variable-speed axial-gap motor with a stator consisting of four liquid helium cooled superconducting electromagnets (two pole pairs) was built and proof tested up to 608 rpm in November 1990 as a tool for joint industry-laboratory evaluation of coils fabricated from high-temperature oxide superconductors. A second rotor was fabricated with improved material, winding configuration, and wire type, and the drive system was modified to eliminate current spiking. The modified motor was characterized to design speed, 188 rad/s (1800 rpm), to acquire a performance baseline for future comparison with that of high-temperature superconducting (HTS) wire. As it becomes commercially available, HTS wire will replace the low-temperature electromagnet wire in a stator modified to control wire temperatures between 4 K and 77 K. Measurements of the superconducting electromagnetic field and locked rotor torque as functions of cryocurrent and dc current through two phases of the rotor, respectively, provided data to estimate power that could be developed by the rotor. Back emf and parasitic mechanical and electromagnetic drag torques were measured as functions of angular velocity to calculate actual rotor power developed and to quantify losses, which reduce the motor`s efficiency. A detailed measurement of motor power at design speed confirmed the developed power equation. When subsequently operated at the 33-A maximum available rotor current, the motor delivered 15.3 kW (20.5 hp) to the load. In a final test, the cryostat was operated at 2500 A, 200 A below its critical current. At rotor design current of 60 A and 2500 A stator current, the extrapolated developed power would be 44.2 kW (59.2 hp) with 94% efficiency.

  2. Segmented Ultralight Pre-Aligned Rotor for Extreme-Scale Wind Turbines

    SciTech Connect (OSTI)

    Loth, E.; Steele, A.; Ichter, B.; Selig, M.; Moriarty, P.

    2012-01-01T23:59:59.000Z

    To alleviate the mass-scaling issues associated with conventional upwind rotors of extreme-scale turbines, a downwind rotor concept is proposed which employs fixed blade curvature based on force alignment at rated conditions. For a given peak stress constraint, the reduction in downwind cantilever loads allows reduced shell and spar thickness, and thus a reduced blade mass as compared with a conventional upwind rotor, especially as rotor sizes approach extreme-scales. To quantify this mass reduction, a Finite Element Analysis was conducted for a 10 MW rated rotor based on the NREL offshore 5 MW baseline wind turbine. The results show that this 'pre-alignment' yields a net downstream deflection of 32 deg, a downward hub-pitch angle of 6 deg, a 20% increase in blade length (to maintain the same radius as the conventional blade), and a net mass savings of about 50% through decreased shell and spar thicknesses. The pre-alignment may also allow a more straightforward and efficient segmentation of the blade since shear stresses near joints are substantially reduced. Segmenting, in turn, can dramatically reduce costs associated with fabrication, transport and assembly for extreme-scale off-shore systems. The pre-aligned geometric curvature can also help alleviate tower wake effects on the blades since blade tips (where shadow effects can be most problematic) are shifted downstream where the tower wake is weaker. In addition, the portion of the tower that is upstream of the blade tips can be faired with an externally-rotating aerodynamic shroud. Furthermore, the downwind rotor can allow a floating off-shore tri-pod platform to reduce tower weight and yaw-control requirements. A simple economic analysis of the segmented ultralight pre-aligned rotor (SUPAR) concept suggests that the overall system cost savings can be as much as 25%, indicating that more detailed (numerical and experimental) investigations are warranted.

  3. Transient analysis of a flywheel battery containment during a full rotor burst event.

    SciTech Connect (OSTI)

    Hsieh, B. J.

    1998-04-17T23:59:59.000Z

    Flywheels are being developed for use in an Advanced Locomotive Propulsion System (ALPS) targeted for use in high speed passenger rail service. The ALPS combines high performance, high speed gas turbines, motor/generators and flywheels to provide a light-weight, fuel-efficient power system. Such a system is necessary to avoid the high cost of railway electrification, as is currently done for high speed rail service (>100mph) since diesels are too heavy. The light-weight flywheel rotors are made from multilayered composite materials, and are operated at extremely high energy levels. Metal containment structures have been designed to enclose the rotors and provide encapsulation of the rotor during postulated failure events. One such event is a burst mode failure of the rotor in which the composite rim is assumed to burst into debris that impacts against the containment. This paper presents a finite element simulation of the transient structural response of a subscale metal flywheel containment structure to a rotor burst event.

  4. Dynamic Rotor Deformation and Vibration Monitoring Using a Non-Incremental Laser Doppler Distance Sensor

    SciTech Connect (OSTI)

    Pfister, Thorsten; Guenther, Philipp; Dreier, Florian; Czarske, Juergen [Technische Universitaet Dresden, Faculty of Electrical Engineering and Information Technology, Laboratory for Measurement and Testing Techniques, Helmholtzstrasse 18, D-01062 Dresden (Germany)

    2010-05-28T23:59:59.000Z

    Monitoring rotor deformations and vibrations dynamically is an important task for improving the safety and the lifetime as well as the energy efficiency of motors and turbo machines. However, due to the high rotor speed encountered in particular at turbo machines, this requires concurrently a high measurement rate and high accuracy, which can not be fulfilled by most commercially available sensors. To solve this problem, we developed a non-incremental laser Doppler distance sensor (LDDS), which is able to measure simultaneously the in-plane velocity and the out-of-plane position of moving rough solid objects with micrometer precision. In addition, this sensor concurrently offers a high temporal resolution in the microsecond range, because its position uncertainty is in principle independent of the object velocity in contrast to conventional distance sensors, which is a unique feature of the LDDS. Consequently, this novel sensor enables precise and dynamic in-process deformation and vibration measurements on rotating objects, such as turbo machine rotors, even at very high speed. In order to evidence the capability of the LDDS, measurements of rotor deformations (radial expansion), vibrations and wobbling motions are presented at up to 50,000 rpm rotor speed.

  5. NON-STATIONARY TEMPERATURE STRESSES IN THE INDUSTRIAL STEAM TURBINE ROTOR

    E-Print Network [OSTI]

    Zvonimir Guzovi?; Krešimir Kova?i?; Tihomir Mihali?

    The usage of industrial steam turbines in different industrial branches (chemistry, petrochemistry, refineries, sugar and ethanol plants, etc.) for a generator drive for electricity generation or a mechanical drive for compressors, blowers and pumps, is characterized by the need for high flexibility of operation. High flexibility includes numerous start-ups, shut-downs and power changes during the useful life. Changes in power and steam mass flow lead to changes of the working fluid state in the single turbine stages, and thus their aerodynamic and thermodynamic characteristics. During these transient working regimes in steam turbine rotors, large space and time-dependent temperature gradients appear, which can result in high non-stationary temperature stresses, i.e. increased local stress concentrations, what has a negative impact on the useful life of the rotor. In the worst case they can cause fracture of the turbine rotor. Today, for the determination of thermal stressed state of the steam turbine parts the user softwares based on numerical methods are used. In this paper the results of numerical modelling and calculations of non-stationary temperature fields and related stresses in the rotor of industrial steam turbine of 35 MW power during transient operating regime (a cold startup) will be presented. The results of the calculations serve for estimation of the transient regime impact on the stresses of the rotor, as well as on its entire useful life. Key words: industrial steam turbine, transient regimes, temperature stresses, numerical modelling 1.

  6. Non-equilibrium steady state and subgeometric ergodicity for a chain of three coupled rotors

    E-Print Network [OSTI]

    Noé Cuneo; Jean-Pierre Eckmann; Christophe Poquet

    2014-11-03T23:59:59.000Z

    We consider a chain of three rotors (rotators) whose ends are coupled to stochastic heat baths. The temperatures of the two baths can be different, and we allow some constant torque to be applied at each end of the chain. Under some non-degeneracy condition on the interaction potentials, we show that the process admits a unique invariant probability measure, and that it is ergodic with a stretched exponential rate. The interesting issue is to estimate the rate at which the energy of the middle rotor decreases. As it is not directly connected to the heat baths, its energy can only be dissipated through the two outer rotors. But when the middle rotor spins very rapidly, it fails to interact effectively with its neighbors due to the rapid oscillations of the forces. By averaging techniques, we obtain an effective dynamics for the middle rotor, which then enables us to find a Lyapunov function. This and an irreducibility argument give the desired result. We finally illustrate numerically some properties of the non-equilibrium steady state.

  7. Axial seal system for a gas turbine steam-cooled rotor

    DOE Patents [OSTI]

    Mashey, Thomas Charles (Anderson, SC)

    2002-01-01T23:59:59.000Z

    An axial seal assembly is provided at the interface between adjacent wheels and spacers of a gas turbine rotor and disposed about tubes passing through openings in the rotor adjacent the rotor rim and carrying a thermal medium. Each seal assembly includes a support bushing for supporting a land of the thermal medium carrying tube, an axially registering seat bushing disposed in the opposed opening and a frustoconical seal between the seal bushing and seat. The seal bushing includes a radial flange having an annular recess for retaining the outer diameter edge of the seal, while the seat bushing has an axially facing annular surface forming a seat for engagement by the inner diameter edge of the seal.

  8. A First-Order Stochastic Prognostic System for the Diagnosis of Helicopter Rotor Systems for the US Navy

    E-Print Network [OSTI]

    Luger, George

    Navy Chayan Chakrabarti, Roshan Rammohan, and George F. Luger {cc | roshan | luger} @cs a diagnostic system for the US Navy to use in the analysis of the "running health" of helicopter rotor systems the data sets of actual helicopter rotor failures supplied by the US Navy. We discuss both critical

  9. Improved Structure and Fabrication of Large, High-Power KHPS Rotors - Final Scientific/Technical Report

    SciTech Connect (OSTI)

    Corren, Dean [Verdant Power, Inc.; Colby, Jonathan [Verdant Power, Inc.; Adonizio, Mary Ann [Verdant Power, Inc.

    2013-01-29T23:59:59.000Z

    Verdant Power, Inc, working in partnership with the National Renewable Energy Laboratory (NREL), Sandia National Laboratories (SNL), and the University of Minnesota St. Anthony Falls Laboratory (SAFL), among other partners, used evolving Computational Fluid Dynamics (CFD) and Finite Element Analysis (FEA) models and techniques to improve the structure and fabrication of large, high-power composite Kinetic Hydropower System (KHPS) rotor blades. The objectives of the project were to: design; analyze; develop for manufacture and fabricate; and thoroughly test, in the lab and at full scale in the water, the improved KHPS rotor blade.

  10. Notes 05. Dynamics of a simple rotor-fluid film bearing system

    E-Print Network [OSTI]

    San Andres, Luis

    2009-01-01T23:59:59.000Z

    () := step in rpm n 1 Nmax..:= T supply 50 K= rpm n Dr n()?:= rotor running speed(rpm) ? n rpm n ? 30 ? rad sec ?:= rotor speed(rad/sec) krpm rpm 1000 := it max 10:= Max iterations for thermal loop VISCOSITY formula ? T() ? supply e ?? TT supply... in ? Q ? Q 0 ? ? ? ? ? ? ? ?T ? ?? T ? T supply ?T ? +? T in T supply ?T in +? T guess T eff ? T eff 0.5 T in T ? + () ?? x ?? it it max () ?while := Speed in rev/sec Speed in rad/sec Guess (set) Effective temperature effective...

  11. Effect of a straight teeth-on-rotor labyrinth seal on rotordynamics

    E-Print Network [OSTI]

    Zierer, Joseph John

    1991-01-01T23:59:59.000Z

    EFFECT OF A STRAIGHT TEETH-ON-ROTOR LABYRINTH SEAL ON ROTORDYNAMICS A Thesis by JOSEPH JOHN ZIERER, JR. Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE December 1991 Major Subject: Mechanical Engineering EFFECT OF A STRAIGHT TEETH-ON-ROTOR LABYRINTH SEAL ON ROTORDYNAMICS A Thesis by JOSEPH JOHN ZIERER, JR. Approved as to style and content by: John Vance (Chair of committee) ouJgurgw e...

  12. MPC for Wind Power Gradients --Utilizing Forecasts, Rotor Inertia, and Central Energy Storage

    E-Print Network [OSTI]

    MPC for Wind Power Gradients -- Utilizing Forecasts, Rotor Inertia, and Central Energy Storage define an extremely low power output gradient and demonstrate how decentralized energy storage conservative bids on the power market. Energy storage strikes the major problems of wind power and joining

  13. Magnetic Patterning of Permanent-Magnet Rotors for Microscale Motor/Generators

    E-Print Network [OSTI]

    Magnetic Patterning of Permanent-Magnet Rotors for Microscale Motor/Generators I. Zana* , F, USA Abstract We present and characterize a process to pattern magnetic poles on small permanent-magnet, this approach uses a ferromagnetic magnetizing head (MH) and an externally applied magnetic field, and it offers

  14. 3-D Time-Accurate CFD Simulations of Wind Turbine Rotor Flow Fields

    E-Print Network [OSTI]

    problems such as helicopter rotors and propellers. In particular, wind turbine blades can experience large from the tower support on downwind, horizontal axis wind turbines. These blade/inflow/tower wake in large scale wind turbines, because the blade passage frequency is well below the audible range

  15. INVESTIGATION OF A COMPRESSOR ROTOR NON-SYNCHRONOUS VIBRATION WITH AND WITHOUT FLUID-STRUCTURE INTERACTION

    E-Print Network [OSTI]

    Zha, Gecheng

    INVESTIGATION OF A COMPRESSOR ROTOR NON-SYNCHRONOUS VIBRATION WITH AND WITHOUT FLUID) of a high speed multistage axial compressor using rigid blade and vibrating blade with fluid blades of a high-speed compressor showing the frequency lock-in near the 1st torsional mode (1T) during

  16. Performance of Rotors in a Brushless Doubly-Fed Induction Machine (BDFM)

    E-Print Network [OSTI]

    Cambridge, University of

    a novel design of BDFM rotor, will perform in a BDFM configured as a variable speed generator. The results The BDFM is attractive as a variable speed generator for wind turbines. In this application, one stator. The BDFM operates in synchronous mode with a fixed relationship between the shaft speed, grid frequency

  17. Blade-forced vibration effects in turbomachinery rotor-stator interaction

    E-Print Network [OSTI]

    Collard, Joseph Eugene

    2000-01-01T23:59:59.000Z

    This thesis presents the effects of blade-forced vibration in turbomachinery rotor-stator interaction. A quasi-three-dimensional multi-row analysis, based on an Euler/Navier-Stokes solver and a parallel computational algorithm, was used to simulate...

  18. UPWIND, Aerodynamics and aero-elasticity Rotor aerodynamics in atmospheric shear flow

    E-Print Network [OSTI]

    wind turbines with rotor diameters in the order of 100 meters, the influence of upstream turbine wakes codes for wind turbines utilize aerodynamics based on BEM methods, see [1, 2]. For modern large scale. Sřrensen Wind Energy Department, Risř National Laboratory & Department of Civil Engineering, Aalborg

  19. American Institute of Aeronautics and Astronautics Numerical Solutions for Ultra-Micro Wave Rotors (UWR)

    E-Print Network [OSTI]

    MĂĽller, Norbert

    , 48824 Starting in 1995, with the MIT "Micro Gas Turbine" project, the mechanical engineering research to an ultra-micro gas turbine. It discusses the advantages of wave rotor as topping units for gas turbines. Introduction ltra Micro Gas Turbines (UµGT) are expected to be the next generation of power source for any

  20. Waves of constant shape and the structure of the \\rotors boundary" in excitable media.

    E-Print Network [OSTI]

    Biktashev, Vadim N.

    wave patterns in R 2 , in terms of the kinematic approach. These patterns include rotating waves by Winfree [13]. The kinematic approach of [8] also considered a boundary of existence of spiral waveWaves of constant shape and the structure of the \\rotors boundary" in excitable media. Yu.E. Elkin

  1. Impact of Rotor Surface Velocity, Leakage Models and Real Gas Properties on Rotordynamic Force Predictions of Gas Labyrinth Seals

    E-Print Network [OSTI]

    Thorat, Manish R.

    2010-07-14T23:59:59.000Z

    Rotordynamic coefficients of a gas labyrinth seal are assumed to be frequency independent. However, this assumption loses its validity as rotor surface velocity approaches Mach 1. The solution procedure of 1CV model by Childs and Scharrer which...

  2. Compressibility effects on rotor forces in the leakage path between a shrouded pump impeller and its housing

    E-Print Network [OSTI]

    Cao, Nhai The

    1993-01-01T23:59:59.000Z

    COMPRESSIBILITY EFFECTS ON ROTOR FORCES IN THE LEAKAGE PATH BETWEEN A SHROUDED PUMP IMPELLER AND ITS HOUSING A Thesis by NHAI THE CAO Submitted to the Office of Graduate Studies of Texas A8cM University in partial fulfilltnent... of the requirements for the degree of MASTER OF SCIENCE August 1993 Major Subject: Mechanical Engineering COMPRESSIBILITY EFFECTS ON ROTOR FORCES IN THE LEAKAGE PATH BETWEEN A SHROUDED PUMP IMPELLER AND ITS HOUSING A Thesis by NHAI THE CAO Approved...

  3. CHARACTERIZATION OF MECHANICAL PERFORMANCE OF NT154 SILICON NITRIDE MICROTRUBINE ROTORS

    SciTech Connect (OSTI)

    Lin, Hua-Tay [ORNL; Ferber, Mattison K [ORNL; Waters, Shirley B [ORNL; Kirkland, Timothy Philip [ORNL

    2006-01-01T23:59:59.000Z

    This paper summarizes the results on recent component characterization efforts carried out to verify the mechanical reliability of NT154 silicon nitride microturbine rotors manufactured by Saint-Gobain. Mechanical properties of biaxial discs machined from airfoil as well as hub region of microturbine rotors were evaluated by a ball-on-ring test technique. Results showed that the mechanical properties of specimens from airfoils with as-processed surfaces exhibited lower characteristic strength than those machined from the hub region with as-machined surfaces. The differences in mechanical performance and reliability between as-processed components and simple-shaped test coupons appear to arise mainly from differences in strength limiting flaw type and microstructure verified by detailed electron microscopy analysis.

  4. Microwave-emitting rotor, separator apparatus including same, methods of operation and design thereof

    DOE Patents [OSTI]

    Meikrantz, David H.

    2006-12-19T23:59:59.000Z

    An apparatus for use in separating, at least in part, a mixture, including at least one chamber and at least one microwave generation device configured for communicating microwave energy into the at least one chamber is disclosed. The rotor assembly may comprise an electric generator for generating electricity for operating the microwave generation device. At least one microwave generation device may be positioned within a tubular interior shaft extending within the rotor assembly. At least a portion of the tubular interior shaft may be substantially transparent to microwave energy. Microwave energy may be emitted in an outward radial direction or toward an anticipated boundary surface defined between a mixture and a separated constituent thereof. A method including flowing a mixture through at least one chamber and communicating microwave energy into the at least one chamber while rotating same is disclosed. Methods of operating a centrifugal separator and design thereof are disclosed.

  5. Risk assessment of turbine rotor failure using probabilistic ultrasonic non-destructive evaluations

    SciTech Connect (OSTI)

    Guan, Xuefei; Zhang, Jingdan; Zhou, S. Kevin [Siemens Corporation, Corporate Technology, 755 College Rd. E., Princeton NJ 08540 (United States); Rasselkorde, El Mahjoub; Abbasi, Waheed A. [Siemens Energy Inc., 841 Old Frankstown Road, Pittsburgh PA 15239 (United States)

    2014-02-18T23:59:59.000Z

    The study presents a method and application of risk assessment methodology for turbine rotor fatigue failure using probabilistic ultrasonic nondestructive evaluations. A rigorous probabilistic modeling for ultrasonic flaw sizing is developed by incorporating the model-assisted probability of detection, and the probability density function (PDF) of the actual flaw size is derived. Two general scenarios, namely the ultrasonic inspection with an identified flaw indication and the ultrasonic inspection without flaw indication, are considered in the derivation. To perform estimations for fatigue reliability and remaining useful life, uncertainties from ultrasonic flaw sizing and fatigue model parameters are systematically included and quantified. The model parameter PDF is estimated using Bayesian parameter estimation and actual fatigue testing data. The overall method is demonstrated using a realistic application of steam turbine rotor, and the risk analysis under given safety criteria is provided to support maintenance planning.

  6. Effect of Cooling Flow on the Operation of a Hot Rotor-Gas Foil Bearing System

    E-Print Network [OSTI]

    Ryu, Keun

    2012-02-14T23:59:59.000Z

    .2 Drive end GFB: Predicted bearing static parameters ................................. 157 M.3 Free end GFB: Predicted bearing static parameters ................................... 158 1 CHAPTER I INTRODUCTION Micro gas turbine engines (<400... kW) are light-weight compact units operating at extreme temperatures and at high rotor speeds to achieve the desired power with reduced emissions [1]. Employing gas foil bearings (GFBs) in micro gas turbines increases system efficiency...

  7. An experimental investigation of a tilt rotor aircraft wake in ground effect

    E-Print Network [OSTI]

    Frey, Michael Louis

    1982-01-01T23:59:59.000Z

    were taken at several disk loadings and various model to ground plane distances. The data collected was used to evaluate the horizontal wake component's effect on people by re- lating the experimental velocity profiles to an equivalent uniform... Flow Measurement Equipment. Wake Velocity Versus Distance from Tilt Rotor Wake Velocity Versus Disk Loading Tuft Flow Visualization ? H=3D, 3, 000 RPM Tuft Flow Visualization ? H=2D, 9, 000 RPM Flow Direction Measurement Results ? H=1D 14 20 22...

  8. Identification of rotordynamic forces in a flexible rotor system using magnetic bearings

    E-Print Network [OSTI]

    Zutavern, Zachary Scott

    2009-06-02T23:59:59.000Z

    IDENTIFICATION OF ROTORDYNAMIC FORCES IN A FLEXIBLE ROTOR SYSTEM USING MAGNETIC BEARINGS A Dissertation by ZACHARY SCOTT ZUTAVERN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... by ZACHARY SCOTT ZUTAVERN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Dara Childs Committee...

  9. Can quantum fractal fluctuations be observed in an atom-optics kicked rotor experiment?

    E-Print Network [OSTI]

    Andrea Tomadin; Riccardo Mannella; Sandro Wimberger

    2005-12-01T23:59:59.000Z

    We investigate the parametric fluctuations in the quantum survival probability of an open version of the delta-kicked rotor model in the deep quantum regime. Spectral arguments [Guarneri I and Terraneo M 2001 Phys. Rev. E vol. 65 015203(R)] predict the existence of parametric fractal fluctuations owing to the strong dynamical localisation of the eigenstates of the kicked rotor. We discuss the possibility of observing such dynamically-induced fractality in the quantum survival probability as a function of the kicking period for the atom-optics realisation of the kicked rotor. The influence of the atoms' initial momentum distribution is studied as well as the dependence of the expected fractal dimension on finite-size effects of the experiment, such as finite detection windows and short measurement times. Our results show that clear signatures of fractality could be observed in experiments with cold atoms subjected to periodically flashed optical lattices, which offer an excellent control on interaction times and the initial atomic ensemble.

  10. Rotor Design for High Pressure Magic Angle Spinning Nuclear Magnetic Resonance

    SciTech Connect (OSTI)

    Turcu, Romulus V.F.; Hoyt, David W.; Rosso, Kevin M.; Sears, Jesse A.; Loring, John S.; Felmy, Andrew R.; Hu, Jian Z.

    2013-01-01T23:59:59.000Z

    High pressure magic angle spinning (MAS) nuclear magnetic resonance (NMR) with a sample spinning rate exceeding 2.1 kHz and pressure greater than 165 bar has never been realized. In this work, a new sample cell design is reported, suitable for constructing cells of different sizes. Using a 7.5 mm high pressure MAS rotor as an example, internal pressure as high as 200 bar at a sample spinning rate of 6 kHz is achieved. The new high pressure MAS rotor is re-usable and compatible with most commercial NMR set-ups, exhibiting low 1H and 13C NMR background and offering maximal NMR sensitivity. As an example of its many possible applications, this new capability is applied to determine reaction products associated with the carbonation reaction of a natural mineral, antigorite ((Mg,Fe2+)3Si2O5(OH)4), in contact with liquid water in water-saturated supercritical CO2 (scCO2) at 150 bar and 50 deg C. This mineral is relevant to the deep geologic disposal of CO2, but its iron content results in too many sample spinning sidebands at low spinning rate. Hence, this chemical system is a good case study to demonstrate the utility of the higher sample spinning rates that can be achieved by our new rotor design. We expect this new capability will be useful for exploring solid-state, including interfacial, chemistry at new levels of high-pressure in a wide variety of fields.

  11. Quantum rotor description of the Mott-insulator transition in the Bose-Hubbard model

    SciTech Connect (OSTI)

    Polak, T. P.; Kopec, T. K. [Institute for Low Temperatures and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wroclaw 2 (Poland)

    2007-09-01T23:59:59.000Z

    We present an approach to the Bose-Hubbard model using the U(1) quantum rotor description. The effective action formalism allows us to formulate a problem in the phase only action and obtain analytical formulas for the critical lines. We show that the nontrivial U(1) phase field configurations have an impact on the phase diagrams. The topological character of the quantum field is governed by terms of the integer charges--winding numbers. The comparison of presented results to recently obtained quantum Monte Carlo numerical calculations suggests that the competition between quantum effects in strongly interacting boson systems is correctly captured by our model.

  12. Imbalance response of a rigid rotor supported on end sealed integral squeeze film dampers

    E-Print Network [OSTI]

    De Santiago Duran, Oscar Cesar

    1998-01-01T23:59:59.000Z

    of rotor vibration [m (in)] Coupled imbalance angle of excitation [', rad] = /I -/I. Efl'ective couple imbalance angle of excitation [', md] Remnant couple imbalance angle of excitation [', md] Fast Fourier transform of time response x(r) Pad arc... across the damper land, c is the radial clearance (0. 229 mm, 9 mila), )e is the lubricant viscosity, R is the journal radius (48. 26 mm, 1. 900 in), y is the pad arc extent (0. 907 rad, 52'), and L is the pad axial length (23. 0 mm, 0. 910 in...

  13. Characterizing Inflow Conditions Across the Rotor Disk of a Utility-Scale Wind Turbine (Poster)

    SciTech Connect (OSTI)

    Clifton, A.; Lundquist, J. K.; Kelley, N.; Scott, G.; Jager, D.; Schreck, S.

    2012-01-01T23:59:59.000Z

    Multi-megawatt utility-scale wind turbines operate in a turbulent, thermally-driven atmosphere where wind speed and air temperature vary with height. Turbines convert the wind's momentum into electrical power, and so changes in the atmosphere across the rotor disk influence the power produced by the turbine. To characterize the inflow into utility scale turbines at the National Wind Technology Center (NWTC) near Boulder, Colorado, NREL recently built two 135-meter inflow monitoring towers. This poster introduces the towers and the measurements that are made, showing some of the data obtained in the first few months of operation in 2011.

  14. Backward Precessional Whip and Whirl for a Two Point Rubbing Contact Model of a Rigid Rotor Supported by an Elastically Supported Rigid Stator

    E-Print Network [OSTI]

    Kumar, Dhruv Dileep

    2011-10-21T23:59:59.000Z

    model with coulomb friction. Dry friction simulations are performed for three separate models depending on the rotor‘s mass disk location with respect to the contact locations. The three models used have (1) Disk at center location (2) Disk at 3...

  15. Abstract--This paper proposes a methodology to decide the optimal matching between the size of the rotor of a wind turbine

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of the rotor of a wind turbine and the rated power of a permanent magnet synchronous machine. This is made of the wind turbine, the gearbox's transformation ratio, the battery voltage and the wind speed probability's rated power and the wind turbine's rotor size. The system studied in this paper consists of 220 (V)/50

  16. Research Areas

    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 742EnergyOnItemResearch > TheNuclear Press Releases 2014References by WebsitehomeResearch Areas

  17. User's Guide for the NREL Teetering Rotor Analysis Program (STRAP). [National Renewable Energy Laboratory (NREL)

    SciTech Connect (OSTI)

    Wright, A.D.

    1992-08-01T23:59:59.000Z

    The following report gives the reader an overview of instructions on the proper use of the National Renewable Energy Laboratory (formerly the Solar Energy Research Institute, or SERI) teetering Rotor Analysis Program (STRAP version 2.20). STRAP is a derivative of the Force and Loads Analysis program (FLAP). It is intended as a tool for prediction of rotor and blade loads and response for only two-bladed teetering hub wind turbines. The effects of delta-3, undersling, hub mass, and wind turbulence are accounted for. The objectives of the report are to give an overview of the code and also show the methods of data input and correct code execution steps in order to model an example two-bladed teetering hub turbine. A large portion of the discussion (Sections 6.0, 7.0, and 8.0) is devoted to the subject of inputting and running the code for wind turbulence effects. The ability to include turbulent wind effects is perhaps the biggest change in the code since the release of FLAP version 2.01 in 1988. This report is intended to be a user's guide. It does not contain a theoretical discussion on equations of motion, assumptions, underlying theory, etc. It is intended to be used in conjunction with Wright, Buhl, and Thresher (1988).

  18. User`s Guide for the NREL Teetering Rotor Analysis Program (STRAP)

    SciTech Connect (OSTI)

    Wright, A.D.

    1992-08-01T23:59:59.000Z

    The following report gives the reader an overview of instructions on the proper use of the National Renewable Energy Laboratory (formerly the Solar Energy Research Institute, or SERI) teetering Rotor Analysis Program (STRAP version 2.20). STRAP is a derivative of the Force and Loads Analysis program (FLAP). It is intended as a tool for prediction of rotor and blade loads and response for only two-bladed teetering hub wind turbines. The effects of delta-3, undersling, hub mass, and wind turbulence are accounted for. The objectives of the report are to give an overview of the code and also show the methods of data input and correct code execution steps in order to model an example two-bladed teetering hub turbine. A large portion of the discussion (Sections 6.0, 7.0, and 8.0) is devoted to the subject of inputting and running the code for wind turbulence effects. The ability to include turbulent wind effects is perhaps the biggest change in the code since the release of FLAP version 2.01 in 1988. This report is intended to be a user`s guide. It does not contain a theoretical discussion on equations of motion, assumptions, underlying theory, etc. It is intended to be used in conjunction with Wright, Buhl, and Thresher (1988).

  19. Fatigue crack growth of titanium rotor alloys in vacuum and air

    SciTech Connect (OSTI)

    McClung, R.C.; Lawless, B.H.; Gorelik, M.; Date, C.; Gill, Y.; Piascik, R.S.

    1999-07-01T23:59:59.000Z

    An enhanced life management system for aircraft turbine engine rotors based on probabilistic damage tolerance methods is currently under development by the engine industry and the FAA, with an initial focus on fatigue cracking at hard alpha (HA) defects in titanium. Since HA defects are usually subsurface, any resulting cracks are embedded and hence isolated from the atmosphere (i.e., vacuum-like) for at least some of their life. Fatigue crack growth (GCG) tests have been conducted in vacuum at various temperatures and stress ratios for Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo+Si rotor alloys. A brief study of vacuum levels suggests that pressures of 10{sup {minus}6} Torr are adequate to capture full vacuum effects on FCG rates. Vacuum FCG results are compared with available air data. The vacuum data demonstrate temperature and stress ratio effects comparable to air data. The vacuum and air data exhibit the same growth rates in the upper Paris regime, but apparent thresholds are significantly higher in vacuum than in air.

  20. A discussion of the results of the rainflow counting of a wide range of dynamics associated with the simultaneous operation of adjacent wind turbines

    SciTech Connect (OSTI)

    Kelley, N.; Desrochers, G.; Tangler, J.; Smith, B.

    1992-10-01T23:59:59.000Z

    The objective of this study was to provide a fatigue load comparison between two identical wind turbines employing different rotor designs. One turbine was fitted with a rotor consisting of a set of NREL (SERI) thin-airfoil blades while the other rotor included the original-equipment AeroStar blades. The data discussed are based on sample load populations derived from the rainflow cycle counting of 405, 10-minute records specifically collected over a wide range of inflow turbulence conditions. The results have shown that the statistical structure of the alternating load cycles on both turbines can be described as a mixture of three stochastic processes. We noted a high degree of load distribution similarity between the two turbines, with the differences attributable to either rotor weight or swept area.

  1. Wind turbine rotor blade with in-plane sweep and devices using same, and methods for making same

    DOE Patents [OSTI]

    Wetzel, Kyle Kristopher (Lawrence, KS)

    2008-03-18T23:59:59.000Z

    A wind turbine includes a rotor having a hub and at least one blade having a torsionally rigid root, an inboard section, and an outboard section. The inboard section has a forward sweep relative to an elastic axis of the blade and the outboard section has an aft sweep.

  2. Eliciting a human understandable model of ice adhesion strength for rotor blade leading edge materials from uncertain experimental data

    E-Print Network [OSTI]

    Granada, Universidad de

    Eliciting a human understandable model of ice adhesion strength for rotor blade leading edge: Genetic Fuzzy Systems Fuzzy rule-based classifiers Vague data Isotropic materials Ice-phobic materials Shear adhesion strength a b s t r a c t The published ice adhesion performance data of novel ``ice

  3. Naturally occurring, optically driven, cellular rotor J. A. Dharmadhikari, S. Roy, A. K. Dharmadhikari, S. Sharma, and D. Mathura)

    E-Print Network [OSTI]

    Sharma, Shobhona

    Naturally occurring, optically driven, cellular rotor J. A. Dharmadhikari, S. Roy, A. K 005, India (Received 10 June 2004; accepted 20 October 2004) We report the conversion of optical energy into mechanical energy by naturally occurring red blood cells (RBCs) placed in an optical trap

  4. An "adiabatic-hindered-rotor" treatment allows para-H2 to be treated as if it were spherical

    E-Print Network [OSTI]

    Le Roy, Robert J.

    An "adiabatic-hindered-rotor" treatment allows para-H2 to be treated as if it were spherical Hui Li­ molecule interactions, the common assumption that para-H2 may be treated as a spherical particle is often K , it is often considered a good approximation to treat para-H2 as a spherical particle.1

  5. The Proton-Driven Rotor of ATP Synthase: Ohmic Conductance (10 fS), and Absence of Voltage Gating

    E-Print Network [OSTI]

    Junge, Wolfgang

    The Proton-Driven Rotor of ATP Synthase: Ohmic Conductance (10 fS), and Absence of Voltage Gating portion of F0F1-ATP synthase, F0, translocates protons by a rotary mechanism. Proton conduction by F0-induced voltage jump was monitored by electrochromic absorption transients to yield the unitary conductance of F0

  6. MasterProof The Proton-Driven Rotor of ATP Synthase: Ohmic Conductance (10 fS),

    E-Print Network [OSTI]

    Steinhoff, Heinz-Jürgen

    MasterProof The Proton-Driven Rotor of ATP Synthase: Ohmic Conductance (10 fS), and Absence ABSTRACT The membrane portion of F0F1-ATP synthase, F0, translocates protons by a rotary mechanism. Proton conduction by F0 was studied in chromatophores of the photosynthetic bacterium Rhodobacter capsulatus

  7. Wind turbine rotor blade with in-plane sweep and devices using the same, and methods for making the same

    DOE Patents [OSTI]

    Wetzel, Kyle Kristopher

    2014-06-24T23:59:59.000Z

    A wind turbine includes a rotor having a hub and at least one blade having a torsionally rigid root, an inboard section, and an outboard section. The inboard section has a forward sweep relative to an elastic axis of the blade and the outboard section has an aft sweep.

  8. Rotor Speed Dependent Yaw Control of Wind Turbines Based on Empirical Data

    SciTech Connect (OSTI)

    Kragh, K. A.; Fleming, P. A.

    2012-01-01T23:59:59.000Z

    When extracting energy from the wind using horizontal-axis upwind wind turbines, a primary condition for maximum power yield is the ability to align the rotor axis with the dominating wind direction. Attempts have been made to improve yaw alignment by applying advanced measurement techniques such as LIDARs. This study is focused at assessing the current performance of an operating turbine and exploring how the yaw alignment can be improved using existing measurements. By analyzing available turbine and met mast data a correction scheme for the original yaw alignment system is synthesized. The correction scheme is applied and it is seen that with the correction scheme in place, the power yield below rated is raised 1-5 percent. Furthermore, results indicate that blade load variations are decreased when the correction scheme is applied. The results are associated with uncertainties due to the amount of available data and the wind site climate. Further work should be focused at gathering more experimental data.

  9. Quantum and Classical Superballistic Transport in a Relativistic Kicked-Rotor System

    E-Print Network [OSTI]

    Qifang Zhao; Cord A. Muller; Jiangbin Gong

    2014-05-27T23:59:59.000Z

    As an unusual type of anomalous diffusion behavior, superballistic transport is not well known but has been experimentally simulated recently. Quantum superballistic transport models to date are mainly based on connected sublattices which are constructed to have different properties. In this work, we show that both quantum and classical superballistic transport in the momentum space can occur in a simple periodically driven Hamiltonian system, namely, a relativistic kicked-rotor system with a nonzero mass term. The nonzero mass term essentially realizes a junction-like scenario: regimes with low or high momentum values have different dispersion relations and hence different transport properties. It is further shown that the quantum and classical superballistic transport should occur under much different choices of the system parameters. The results are of interest to studies of anomalous transport, quantum and classical chaos, and the issue of quantum-classical correspondence.

  10. Site Monitoring Area Maps

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

    to the Site Monitoring Area (SMA) The Site Monitoring Area sampler Control measures (best management practices) installed at the Site Monitoring Area Structures such as...

  11. Wildlife Management Areas (Minnesota)

    Broader source: Energy.gov [DOE]

    Certain areas of the State are designated as wildlife protection areas and refuges; new construction and development is restricted in these areas.

  12. Characterization of winds through the rotor plane using a phased array SODAR and recommendations for future work.

    SciTech Connect (OSTI)

    Deola, Regina Anne

    2010-02-01T23:59:59.000Z

    Portable remote sensing devices are increasingly needed to cost effectively characterize the meteorology at a potential wind energy site as the size of modern wind turbines increase. A short term project co-locating a Sound Detection and Ranging System (SODAR) with a 200 meter instrumented meteorological tower at the Texas Tech Wind Technology Field Site was performed to collect and summarize wind information through an atmospheric layer typical of utility scale rotor plane depths. Data collected identified large speed shears and directional shears that may lead to unbalanced loads on the rotors. This report identifies suggestions for incorporation of additional data in wind resource assessments and a few thoughts on the potential for using a SODAR or SODAR data to quantify or investigate other parameters that may be significant to the wind industry.

  13. Wildlife Management Areas (Florida)

    Broader source: Energy.gov [DOE]

    Certain sites in Florida are designated as wildlife management areas, and construction and development is heavily restricted in these areas.

  14. Prediction of stochastic blade loads for three-bladed, rigid-hub rotors

    SciTech Connect (OSTI)

    Wright, A.D.; Weber, T.L.; Thresher, R.W.; Butterfield, C.P.

    1989-11-01T23:59:59.000Z

    Accurately predicting wind turbine blade loads and response is important for the design of future wind turbines. The need to include turbulent wind inputs in structural dynamics models is widely recognized. In this paper, the Force and Loads Analysis Program (FLAP) code will be used to predict turbulence-induced bending moments for the SERI Combined Experiment rotor blade and the Howden 330-kW blade. FLAP code predictions will be compared to the power spectra of measured blade-bending moments. Two methods will be used to generate turbulent wind inputs to FLAP: a theoretical simulation: the Pacific Northwest Laboratories (PNL) simulation theory; and measured wind-speed data taken from an array of anemometers upwind of the turbine. Turbulent wind-speed time series are input to FLAP for both methods outlined above. Power spectra of predicted flap-bending moments are compared to measured results for different wind conditions. Conclusions are also drawn as to the ability of the turbulence simulation models to provide accurate wind input to FLAP and to FLAP's ability to accurately simulate blade response to turbulence. Finally, suggestions are made as to needed improvements in the theoretical model. 11 refs., 8 figs.

  15. Characterizing the cracking behavior of hard alpha defects in rotor grade Ti-6-4 alloy

    SciTech Connect (OSTI)

    McKeighan, P.C.; Perocchi, L.C.; Nicholls, A.E.; McClung, R.C.

    1999-07-01T23:59:59.000Z

    A program sponsored by the FAA is currently underway to develop predictive tools utilizing state-of-the-art damage tolerance and probabilistic methodologies that can be used in the life management of high energy rotors. The program is focusing on fatigue crack nucleation and growth from anomalies in titanium alloys known as hard alpha, an inclusion-like feature that can occur during the melting process. In the work detailed in this paper, two sizes of synthetic hard alpha defects are created in Ti-6Al-4V and subjected to static and fatigue loading. In addition, two different geometry anomalies are considered: one intersecting the surface of the specimen and another embedded internally. A number of crack detection transducers are used and shown to compare well to results from visual inspections on the surface defect specimens. These surface specimens tend to exhibit defect cracking at relatively low stress levels, typically on the order of 5--10 ksi. Although it appeared from the crack detection transducer that little or no cracking occurred in the interior anomaly specimens given an applied static stress of 100 ksi, subsequent metallographic sectioning demonstrated more extensive cracking and damage. The observed cracking behavior indicates that the diffusion zone may play an important role in the structural integrity of the hard alpha anomalies.

  16. Evaluation of Manufacturability of Embedded Sensors and Controls with Canned Rotor Pump System

    SciTech Connect (OSTI)

    Kisner, Roger A [ORNL; Fugate, David L [ORNL; Melin, Alexander M [ORNL; Holcomb, David Eugene [ORNL; Wilson, Dane F [ORNL; Silva, Pamela C [ORNL; Cruz Molina, Carola [ORNL

    2013-07-01T23:59:59.000Z

    This report documents the current status of fabrication and assembly planning for the magnetic bearing, canned rotor pump being used as a demonstration platform for deeply integrating I&C into nuclear power plant components. The report identifies material choices and fabrication sequences for all of the required parts and the issues that need to be either resolved or accommodated during the manufacturing process. Down selection between material options has not yet been performed. Potential suppliers for all of the necessary materials have also been identified. The assembly evaluation begins by logically subdividing the pump into modules, which are themselves decomposed into individual parts. Potential materials and fabrication processes for each part in turn are then evaluated. The evaluation process includes assessment of the environmental compatibility requirements and the tolerances available for the selected fabrication processes. A description of the pump power/control electronics is also provided. The report also includes exploded views of the modules that show the integration of the various parts into modules that are then assembled to form the pump. Emphasis has been placed on thermal environment compatibility and the part dimensional changes during heat-up. No insurmountable fabrication or assembly challenges have been identified.

  17. Western Area Power Administration

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

    29-30, 2011 2 Agenda * Overview of Western Area Power Administration * Post-1989 Loveland Area Projects (LAP) Marketing Plan * Energy Planning and Management Program * Development...

  18. Hydrologically Sensitive Areas: Variable Source Area Hydrology

    E-Print Network [OSTI]

    Walter, M.Todd

    Hydrologically Sensitive Areas: Variable Source Area Hydrology Implications for Water Quality Risk hydrology was developed and applied to the New York City (NYC) water supply watersheds. According and are therefore hydrologically sensitive with respect to their potential to transport contaminants to perennial

  19. Apparatus and methods for aligning holes through wheels and spacers and stacking the wheels and spacers to form a turbine rotor

    DOE Patents [OSTI]

    Berry, Robert Randolph (Greenville, SC); Palmer, Gene David (Clifton Park, NY); Wilson, Ian David (Clifton Park, NY)

    2000-01-01T23:59:59.000Z

    A gas turbine rotor stacking fixture includes upstanding bolts for reception in aligned bolt holes in superposed aft disk, wheels and spacers and upstanding alignment rods received in openings of the disk, wheels and spacers during the rotor stacking assembly. The axially registering openings enable insertion of thin-walled tubes circumferentially about the rim of the rotor, with tight tolerances to the openings to provide supply and return steam for cooling buckets. The alignment rods have radial dimensions substantially less than their dimensions in a circumferential direction to allow for radial opening misalignment due to thermal expansion, tolerance stack-up and wheel-to-spacer mismatch due to rabbet mechanical growth. The circumferential dimension of the alignment rods affords tightly toleranced alignment of the openings through which the cooling tubes are installed.

  20. AREA COORDINATOR RESIDENTIAL EDUCATION

    E-Print Network [OSTI]

    Bordenstein, Seth

    AREA COORDINATOR RESIDENTIAL EDUCATION VANDERBILT UNIVERSITY, NASHVILLE, TENNESSEE The Office of Housing and Residential Education at Vanderbilt University is seeking applicants for an Area Coordinator. The Area Coordinator is responsible for assisting in the management and operation of a residential area

  1. Effective grain surface area in the formation of molecular hydrogen in interstellar clouds

    E-Print Network [OSTI]

    Sandip Kumar Chakrabarti; Ankan Das; Kinsuk Acharyya; Sonali Chakrabarti

    2008-06-28T23:59:59.000Z

    In the interstellar clouds, molecular hydrogens are formed from atomic hydrogen on grain surfaces. An atomic hydrogen hops around till it finds another one with which it combines. This necessarily implies that the average recombination time, or equivalently, the effective grain surface area depends on the relative numbers of atomic hydrogen influx rate and the number of sites on the grain. Our aim is to discover this dependency. We perform a numerical simulation to study the recombination of hydrogen on grain surfaces in a variety of cloud conditions. We use a square lattice (with a periodic boundary condition) of various sizes on two types of grains, namely, amorphous carbon and olivine. We find that the steady state results of our simulation match very well with those obtained from a simpler analytical consideration provided the `effective' grain surface area is written as $\\sim S^{\\alpha}$, where, $S$ is the actual physical grain area and $\\alpha$ is a function of the flux of atomic hydrogen which is determined from our simulation. We carry out the simulation for various astrophysically relevant accretion rates. For high accretion rates, small grains tend to become partly saturated with $H$ and $H_2$ and the subsequent accretion will be partly inhibited. For very low accretion rates, the number of sites to be swept before a molecular hydrogen can form is too large compared to the actual number of sites on the grain, implying that $\\alpha$ is greater than unity.

  2. (Anti-)BRST and (Anti-)co-BRST Symmetries of a System of Rigid Rotor: Augmented Supervariable Approach

    E-Print Network [OSTI]

    T. Bhanja; N. Srinivas; R. P. Malik

    2015-04-16T23:59:59.000Z

    We derive the nilpotent (anti-)BRST and (anti-)co-BRST symmetry transformations for the system of a rigid rotor by exploiting the (anti-)BRST and (anti-)co-BRST restrictions on the (anti-)chiral supervariables that are defined on the appropriately chosen (1, 1)-dimensional super-submanifolds of the general (1, 2)-dimensional supermanifold on which, our 1D system of a rigid rotor is considered within the framework of augmented supervariable approach. The general (1, 2)-dimensional supermanifold is parameterized by the superspace coordinates (t, \\theta, \\bar\\theta) where t is the bosonic evolution parameter and (\\theta, \\bar\\theta) are the Grassmannian variables which obey the standard relationships: {\\theta}^2 = {\\bar\\theta}^2 = 0, {\\theta}\\,{\\bar\\theta} + {\\bar\\theta}\\,{\\theta} = 0. One of the key results of our present investigation is the observation that we do not require the theoretical strength of (dual-)horizontality conditions anywhere (while deriving the above symmetries). We also provide the geometrical interpretations for the symmetry invariance and nilpotency property. Furthermore, in our present endeavor, we concisely offer some relevant remarks on the property of absolute anticommutativity.

  3. Enclosure Requirements to Protect Personnel from Spinning Rotor Frailures at the Power Electronics and Electric Machinery Research Center

    SciTech Connect (OSTI)

    McKeever, John W [ORNL

    2007-08-01T23:59:59.000Z

    Performance evaluation of electric motors is a major function of the Power Electronics and Electric Machinery Research Center (PEEMRC). Normally these motors have a fixed wire-wound stator and a rotating rotor, which may have conductors embedded in a ferromagnetic core (induction motors), magnets mounted on the surface of the ferromagnetic core with a thin metal or composite cylinder or ring to hold them in place, or magnets embedded in the ferromagnetic core. Most of the work currently involves the last two permanent magnet (PM) configurations. Although the stator of a radial-gap motor can absorb energy from many of the fragments ejected from the rotor during operation, the stator of an axial-gap motor is not positioned to provide significant protection. The housing of each motor can also absorb some of the energy. The most conservative approach, however, is to assume that all fragments from the rotor must be contained by a protective enclosure. An ideal enclosure is transparent. Manufacturers of such plastics as Lexan, Tuffak, and Cyrolon sell different variations of transparent enclosure material. Lexan is a polycarbonate sheet. Lexgard{reg_sign} is a penetration resistant material made by layering polycarbonate material between pieces of ordinary glass. A fragment striking a sheet of enclosure material will pierce the surface layer, but the layered polycarbonate-glass material is able to absorb the fragment's energy before it completes penetration. Tuffak{reg_sign} is Lexan polycarbonate. Cyrolon{reg_sign} bullet resistant material is acrylic sheet. The ability of the enclosure to stop a fragment depends on its thickness as well as the penetration capability of the fragment; for example, a lead fragment has much less penetrating capability than a steel fragment. Enclosure thicknesses are commercially available to provide several levels of protection. These levels depend on the momentum of the fragments and have been evaluated for some common types of ammunition. This summary quantifies four typical worst-case fragments which have maximum translational kinetic energy when ejected from a rotating annulus. (1) The first fragment is released from a rotating annular titanium ring. (2) The second fragment is a magnet released from the Oak Ridge National Laboratory's (ORNL's) 30-kW axial-gap PM motor. Analysis of the second fragment which is like a segment of half-angle, {alpha}, from a thin annular ring is similar to that of the titanium ring segment except that the angle is 10{sup o} instead of 133{sup o}. (3) The third fragment is a magnet from the radial-gap 6-kW fractional-slot surface-mounted PM (SPM) motor with concentrated windings. Analysis of the third fragment is similar to the analysis of the second fragment. (4) The fourth fragment is a 133{sup o} segment of an entire rotor which assumes that the laminates and magnets in the rotor fail as a single fragment, truly a worst case assumption.

  4. Wetland Preservation Areas (Minnesota)

    Broader source: Energy.gov [DOE]

    A wetland owner can apply to the host county for designation of a wetland preservation area. Once designated, the area remains designated until the owner initiates expiration, except where a state...

  5. Protected Areas Stacy Philpott

    E-Print Network [OSTI]

    Gottgens, Hans

    · Convention of Biological Diversity, 1992 #12;IUCN Protected Area Management Categories Ia. Strict Nature. Protected Landscape/ Seascape VI. Managed Resource Protected Area #12;Ia. Strict Nature Preserves and Ib. Wilderness Areas · Natural preservation · Research · No · No #12;II. National Parks · Ecosystem protection

  6. Service Entry Delivery Area

    E-Print Network [OSTI]

    New South Wales, University of

    Catheter Lab Boiler House Main Entry Short Street ChapelStreet Vehicle Exit 23. Gray Street Car ParkingService Entry Waste Handling Area Delivery Area Admissions Entrance Inquiries Desk Cafeteria Coffee in July 2000 Vehicle Entry Emergency Main Entrance TOKOGARAHRAILWAYSTATION LEGEND Areas under construction

  7. Turbine blade platform film cooling with simulated stator-rotor purge flow with varied seal width and upstream wake with vortex

    E-Print Network [OSTI]

    Blake, Sarah Anne

    2009-05-15T23:59:59.000Z

    The turbine blade platform can be protected from hot mainstream gases by injecting cooler air through the gap between stator and rotor. The effectiveness of this film cooling method depends on the geometry of the slot, the quantity of injected air...

  8. 21`eme Congr`es Francais de Mecanique Bordeaux, 26 au 30 ao^ut 2013 Etude aerodynamique instationnaire d'un rotor eolien de

    E-Print Network [OSTI]

    Boyer, Edmond

    ´erodynamique instationnaire d'un rotor ´eolien de Savonius : mise en ´evidence de l'influence de la portance Pauline BUTAUDa'´eolienne Savonius, notamment en comparant les r´esultats statiques instationnaires (´eolienne immobile) et, l'´eolienne Savonius est couram- ment dite de train´ee car son couple serait maximal lorsque les

  9. Groundwater Management Areas (Texas)

    Broader source: Energy.gov [DOE]

    This legislation authorizes the Texas Commission on Environmental Quality and the Texas Water Development Board to establish Groundwater Management Areas to provide for the conservation,...

  10. Riparian Area. . . . . . . . . . . . . . . . . . . . Management Handbook

    E-Print Network [OSTI]

    Balasundaram, Balabhaskar "Baski"

    ..............................................................................................................19 Bruce Hoagland, Oklahoma Biological Survey and the University of Oklahoma Forest Management Riparian Area. . . . . . . . . . . . . . . . . . . . Management Handbook E-952 Oklahoma Cooperative . . . . . . . . . . . . . Oklahoma Conservation Commission Management Handbook #12

  11. Geothermal br Resource br Area Geothermal br Resource br Area...

    Open Energy Info (EERE)

    Zone Mesozoic granite granodiorite Aurora Geothermal Area Aurora Geothermal Area Walker Lane Transition Zone Geothermal Region MW Beowawe Hot Springs Geothermal Area Beowawe Hot...

  12. Anti-optimisation applied to the analysis of rotor/stator interaction Note: this article is part of the proceedings of the Turbo Expo 2013 conference (paper GT2013-

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Anti-optimisation applied to the analysis of rotor/stator interaction Note: this article is part in the design process, so there is a need for efficient and practical computational models that can predict

  13. Rotor dynamic analysis of multi-line systems using the polynomial transfer matrix method

    E-Print Network [OSTI]

    Troxler, Paul Joseph

    1990-01-01T23:59:59.000Z

    is based on the polynomial transfer matrix method. The transfer matrices for the general point mass and flexible beam are presented. The model has the capability to include a number of different options such as stator gyroscopic terms (to model... polynomial coefficients a = mass and beam matrix elements 1J A = cross sectional Area A, B = matrices b; = coefficients of polynomial after removing quadratic factor B&g ? variables used in deriving foundation equations c = scale factor c...

  14. Synchronous motor with soft start element formed between the motor rotor and motor output shaft to successfully synchronize loads that have high inertia and/or high torque

    DOE Patents [OSTI]

    Umans, Stephen D; Nisley, Donald L; Melfi, Michael J

    2014-10-28T23:59:59.000Z

    A line-start synchronous motor has a housing, a rotor shaft, and an output shaft. A soft-start coupling portion is operatively coupled to the output shaft and the rotor shaft. The soft-start coupling portion is configurable to enable the synchronous motor to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling. The synchronous motor is sufficiently rated to obtain synchronous operation and to drive, at least near synchronous speed during normal steady state operation of the motor, a load having characteristics sufficient to prevent obtaining normal synchronous operation of the motor when the motor is operatively connected to the load in the absence of the soft-start coupling.

  15. 300 AREA URANIUM CONTAMINATION

    SciTech Connect (OSTI)

    BORGHESE JV

    2009-07-02T23:59:59.000Z

    {sm_bullet} Uranium fuel production {sm_bullet} Test reactor and separations experiments {sm_bullet} Animal and radiobiology experiments conducted at the. 331 Laboratory Complex {sm_bullet} .Deactivation, decontamination, decommissioning,. and demolition of 300 Area facilities

  16. Decontamination & decommissioning focus area

    SciTech Connect (OSTI)

    NONE

    1996-08-01T23:59:59.000Z

    In January 1994, the US Department of Energy Office of Environmental Management (DOE EM) formally introduced its new approach to managing DOE`s environmental research and technology development activities. The goal of the new approach is to conduct research and development in critical areas of interest to DOE, utilizing the best talent in the Department and in the national science community. To facilitate this solutions-oriented approach, the Office of Science and Technology (EM-50, formerly the Office of Technology Development) formed five Focus AReas to stimulate the required basic research, development, and demonstration efforts to seek new, innovative cleanup methods. In February 1995, EM-50 selected the DOE Morgantown Energy Technology Center (METC) to lead implementation of one of these Focus Areas: the Decontamination and Decommissioning (D & D) Focus Area.

  17. Physics Thrust Areas

    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:Energy: Grid Integration Redefining What's Possible for RenewableSpeedingBiomassPPPOPetroleum ReservesThrust Areas Physics Thrust Areas

  18. 300 Area Disturbance Report

    SciTech Connect (OSTI)

    LL Hale; MK Wright; NA Cadoret

    1999-01-07T23:59:59.000Z

    The objective of this study was to define areas of previous disturbance in the 300 Area of the U.S. Department of Energy (DOE) Hanford Site to eliminate these areas from the cultural resource review process, reduce cultural resource monitoring costs, and allow cultural resource specialists to focus on areas where subsurface disturbance is minimal or nonexistent. Research into available sources suggests that impacts from excavations have been significant wherever the following construction activities have occurred: building basements and pits, waste ponds, burial grounds, trenches, installation of subsurface pipelines, power poles, water hydrants, and well construction. Beyond the areas just mentioned, substrates in the' 300 Area consist of a complex, multidimen- sional mosaic composed of undisturbed stratigraphy, backfill, and disturbed sediments; Four Geographic Information System (GIS) maps were created to display known areas of disturbance in the 300 Area. These maps contain information gleaned from a variety of sources, but the primary sources include the Hanford GIS database system, engineer drawings, and historic maps. In addition to these maps, several assumptions can be made about areas of disturbance in the 300 Area as a result of this study: o o Buried pipelines are not always located where they are mapped. As a result, cultural resource monitors or specialists should not depend on maps depicting subsurface pipelines for accurate locations of previous disturbance. Temporary roads built in the early 1940s were placed on layers of sand and gravel 8 to 12 in. thick. Given this information, it is likely that substrates beneath these early roads are only minimally disturbed. Building foundations ranged from concrete slabs no more than 6 to 8 in. thick to deeply excavated pits and basements. Buildings constructed with slab foundations are more numerous than may be expected, and minimally disturbed substrates may be expected in these locations. Historic black and white photographs provide a partial record of some excavations, including trenches, building basements, and material lay-down yards. Estimates of excavation depth and width can be made, but these estimates are not accurate enough to pinpoint the exact location where the disturbedhmdisturbed interface is located (e.g., camera angles were such that depths and/or widths of excavations could not be accurately determined or estimated). In spite of these limitations, these photographs provide essential information. Aerial and historic low-level photographs have captured what appears to be backfill throughout much of the eastern portion of the 300 Area-near the Columbia River shoreline. This layer of fill has likely afforded some protection for the natural landscape buried beneath the fill. This assumption fits nicely with the intermittent and inadvertent discoveries of hearths and stone tools documented through the years in this part of the 300 Area. Conversely, leveling of sand dunes appears to be substantial in the northwestern portion of the 300 Area during the early stages of development. o Project files and engineer drawings do not contain information on any impromptu but necessary adjustments made on the ground during project implementation-after the design phase. Further, many projects are planned and mapped but never implemented-this information is also not often placed in project files. Specific recommendations for a 300 Area cultural resource monitoring strategy are contained in the final section of this document. In general, it is recommended that monitoring continue for all projects located within 400 m of the Columbia River. The 400-m zone is culturally sensitive and likely retains some of the most intact buried substrates in the 300 Area.

  19. Sensitivity of transitions in internal rotor molecules to a possible variation of the proton-to-electron mass ratio

    SciTech Connect (OSTI)

    Jansen, Paul; Ubachs, Wim; Bethlem, Hendrick L. [Institute for Lasers, Life and Biophotonics, VU University Amsterdam, De Boelelaan 1081, NL-1081 HV Amsterdam (Netherlands); Kleiner, Isabelle [Laboratoire Interuniversitaire des Systemes Atmospheriques (LISA), CNRS UMR 7583 et Universites Paris 7 et Paris Est, 61 avenue du General de Gaulle, FR-94010 Creteil Cedex (France); Xu, Li-Hong [Department of Physics and Centre for Laser, Atomic, and Molecular Sciences, University of New Brunswick, Saint John, New Brunswick, Canada E2L 4L5 (Canada)

    2011-12-15T23:59:59.000Z

    Recently, methanol was identified as a sensitive target system to probe variations of the proton-to-electron mass ratio {mu}[Jansen et al., Phys. Rev. Lett. 106, 100801 (2011)]. The high sensitivity of methanol originates from the interplay between overall rotation and hindered internal rotation of the molecule; that is, transitions that convert internal rotation energy into overall rotation energy, or vice versa, have an enhanced sensitivity coefficient, K{sub {mu}}. As internal rotation is a common phenomenon in polyatomic molecules, it is likely that other molecules display similar or even larger effects. In this paper we generalize the concepts that form the foundation of the high sensitivity in methanol and use this to construct an approximate model which makes it possible to estimate the sensitivities of transitions in internal rotor molecules with C{sub 3v} symmetry, without performing a full calculation of energy levels. We find that a reliable estimate of transition sensitivities can be obtained from the three rotational constants (A, B, and C) and three torsional constants (F, V{sub 3}, and {rho}). This model is verified by comparing obtained sensitivities for methanol, acetaldehyde, acetamide, methyl formate, and acetic acid with a full analysis of the molecular Hamiltonian. Of the molecules considered, methanol is by far the most suitable candidate for laboratory and cosmological tests searching for a possible variation of {mu}.

  20. Modeling Creep-Fatigue-Environment Interactions in Steam Turbine Rotor Materials for Advanced Ultra-supercritical Coal Power Plants

    SciTech Connect (OSTI)

    Shen, Chen

    2014-01-20T23:59:59.000Z

    The goal of this project is to model creep-fatigue-environment interactions in steam turbine rotor materials for advanced ultra-supercritical (A-USC) coal power Alloy 282 plants, to develop and demonstrate computational algorithms for alloy property predictions, and to determine and model key mechanisms that contribute to the damages caused by creep-fatigue-environment interactions. The nickel based Alloy 282 is selected for this project because it is one of the leading candidate materials for the high temperature/pressure section of an A-USC steam turbine. The methods developed in the project are expected to be applicable to other metal alloys in similar steam/oxidation environments. The major developments are: ? failure mechanism and microstructural characterization ? atomistic and first principles modeling of crack tip oxygen embrittlement ? modeling of gamma prime microstructures and mesoscale microstructure-defect interactions ? microstructure and damage-based creep prediction ? multi-scale crack growth modeling considering oxidation, viscoplasticity and fatigue The technology developed in this project is expected to enable more accurate prediction of long service life of advanced alloys for A-USC power plants, and provide faster and more effective materials design, development, and implementation than current state-of-the-art computational and experimental methods. This document is a final technical report for the project, covering efforts conducted from January 2011 to January 2014.

  1. OLED area illumination source

    DOE Patents [OSTI]

    Foust, Donald Franklin (Scotia, NY); Duggal, Anil Raj (Niskayuna, NY); Shiang, Joseph John (Niskayuna, NY); Nealon, William Francis (Gloversville, NY); Bortscheller, Jacob Charles (Clifton Park, NY)

    2008-03-25T23:59:59.000Z

    The present invention relates to an area illumination light source comprising a plurality of individual OLED panels. The individual OLED panels are configured in a physically modular fashion. Each OLED panel comprising a plurality of OLED devices. Each OLED panel comprises a first electrode and a second electrode such that the power being supplied to each individual OLED panel may be varied independently. A power supply unit capable of delivering varying levels of voltage simultaneously to the first and second electrodes of each of the individual OLED panels is also provided. The area illumination light source also comprises a mount within which the OLED panels are arrayed.

  2. Inner Area Principles

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn Other News linkThermalInner Area Principles The Inner Area

  3. PROTECTED AREAS AMENDMENTS AND.

    E-Print Network [OSTI]

    as critical fish and wildlife habitat. The "protected areas" amendment is a major step in the Council's efforts to rebuild fish and wildlife populations that have been damaged by hydroelectric development. Low also imposed significant costs. The Northwest's fish and wildlife have suffered extensive losses

  4. MSL ENTERANCE REFERENCE AREA

    E-Print Network [OSTI]

    Aalberts, Daniel P.

    MSL ENTERANCE LOBBY ELEV STAIRS SSL-019 REFERENCE AREA SSL-021 GROUP STUDY SSL-018 STUDY ROOM SSL-029 SSL-020 COPY ROOM SSL-022 GROUP STUDY SSL-026 STACKS SSL-023 GROUP STUDY SSL-024 GROUP STUDY SSL TBL-014 TBL-014A STAIRS SSL-007 GIS/ WORKROOM SSL-011 SSL-008 SSL-009 SSL-010 SSL-014 SSL-017 STAIRS

  5. Subsurface contaminants focus area

    SciTech Connect (OSTI)

    NONE

    1996-08-01T23:59:59.000Z

    The US Department of Enregy (DOE) Subsurface Contaminants Focus Area is developing technologies to address environmental problems associated with hazardous and radioactive contaminants in soil and groundwater that exist throughout the DOE complex, including radionuclides, heavy metals; and dense non-aqueous phase liquids (DNAPLs). More than 5,700 known DOE groundwater plumes have contaminated over 600 billion gallons of water and 200 million cubic meters of soil. Migration of these plumes threatens local and regional water sources, and in some cases has already adversely impacted off-site rsources. In addition, the Subsurface Contaminants Focus Area is responsible for supplying technologies for the remediation of numerous landfills at DOE facilities. These landfills are estimated to contain over 3 million cubic meters of radioactive and hazardous buried Technology developed within this specialty area will provide efective methods to contain contaminant plumes and new or alternative technologies for development of in situ technologies to minimize waste disposal costs and potential worker exposure by treating plumes in place. While addressing contaminant plumes emanating from DOE landfills, the Subsurface Contaminants Focus Area is also working to develop new or alternative technologies for the in situ stabilization, and nonintrusive characterization of these disposal sites.

  6. Plutonium focus area

    SciTech Connect (OSTI)

    NONE

    1996-08-01T23:59:59.000Z

    To ensure research and development programs focus on the most pressing environmental restoration and waste management problems at the U.S. Department of Energy (DOE), the Assistant Secretary for the Office of Environmental Management (EM) established a working group in August 1993 to implement a new approach to research and technology development. As part of this new approach, EM developed a management structure and principles that led to the creation of specific Focus Areas. These organizations were designed to focus the scientific and technical talent throughout DOE and the national scientific community on the major environmental restoration and waste management problems facing DOE. The Focus Area approach provides the framework for intersite cooperation and leveraging of resources on common problems. After the original establishment of five major Focus Areas within the Office of Technology Development (EM-50, now called the Office of Science and Technology), the Nuclear Materials Stabilization Task Group (EM-66) followed the structure already in place in EM-50 and chartered the Plutonium Focus Area (PFA). The following information outlines the scope and mission of the EM, EM-60, and EM-66 organizations as related to the PFA organizational structure.

  7. DOE Designates Southwest Area and Mid-Atlantic Area National...

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

    Interest Electric Transmission Corridors DOE Designates Southwest Area and Mid-Atlantic Area National Interest Electric Transmission Corridors October 2, 2007 - 11:12am Addthis...

  8. New Rotary Engine Designs by Deviation Function Method

    E-Print Network [OSTI]

    Warren, Sarah

    2012-01-01T23:59:59.000Z

    Maximum Compression Ratio Appendix B Sealing Index Thecompression ratio and swept area without the conventional limitation on sealing index.

  9. Classical Mechanics (Prof. P. L. Read)

    E-Print Network [OSTI]

    Read, Peter L.

    based on detailed observations by Tycho Brahe #12;Kepler's 2nd Law · Area swept out by radius vector r

  10. Scientific and Natural Areas (Minnesota)

    Broader source: Energy.gov [DOE]

    Certain scientific and natural areas are established throughout the state for the purpose of preservation and protection. Construction and new development is prohibited in these areas.

  11. Large area bulk superconductors

    DOE Patents [OSTI]

    Miller, Dean J. (Darien, IL); Field, Michael B. (Jersey City, NJ)

    2002-01-01T23:59:59.000Z

    A bulk superconductor having a thickness of not less than about 100 microns is carried by a polycrystalline textured substrate having misorientation angles at the surface thereof not greater than about 15.degree.; the bulk superconductor may have a thickness of not less than about 100 microns and a surface area of not less than about 50 cm.sup.2. The textured substrate may have a thickness not less than about 10 microns and misorientation angles at the surface thereof not greater than about 15.degree.. Also disclosed is a process of manufacturing the bulk superconductor and the polycrystalline biaxially textured substrate material.

  12. Strategic Focus Areas

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebookScholarshipSpiralingSecurity217,354Strategic Focus Areas Lockheed

  13. Cold collisions of highly rotationally excited CO{sub 2} with He: The prospects for cold chemistry with super-rotors

    SciTech Connect (OSTI)

    Al-Qady, W. H.; Forrey, R. C.; Yang, B. H.; Stancil, P. C.; Balakrishnan, N. [Department of Physics and Astronomy and the Center for Simulational Physics, University of Georgia, Athens, Georgia 30602 (United States); Department of Physics, The Pennsylvania State University, Berks Campus, Reading, Pennsylvania 19610 (United States); Department of Physics and Astronomy and the Center for Simulational Physics, University of Georgia, Athens, Georgia 30602 (United States); Department of Chemistry, University of Nevada-Las Vegas, Las Vegas, Nevada 89154 (United States)

    2011-11-15T23:59:59.000Z

    Building on recent advances in ultrafast lasers and methods to slow molecules, an experiment is proposed to produce translationally cold CO{sub 2} super-rotors (j{approx}200) by combining an optical centrifuge with helium-buffer-gas cooling. Quantum mechanical calculations of the complex scattering length for He-CO{sub 2} collisions demonstrate that the efficiency of rotational quenching decreases rapidly with increasing rotational excitation j in the ultracold regime. Extrapolating to helium cryogenic temperatures, rotational quenching is predicted to remain inefficient up to {approx}1 K, allowing for the possible creation of a beam of translationally cold, rotationally hot molecules.

  14. T-1 Training Area

    SciTech Connect (OSTI)

    None

    2014-11-07T23:59:59.000Z

    Another valuable homeland security asset at the NNSS is the T-1 training area, which covers more than 10 acres and includes more than 20 separate training venues. Local, County, and State first responders who train here encounter a variety of realistic disaster scenarios. A crashed 737 airliner lying in pieces across the desert, a helicopter and other small aircraft, trucks, buses, and derailed train cars are all part of the mock incident scene. After formal classroom education, first responders are trained to take immediate decisive action to prevent or mitigate the use of radiological or nuclear devices by terrorists. The Counterterrorism Operations Support Center for Radiological Nuclear Training conducts the courses and exercises providing first responders from across the nation with the tools they need to protect their communities. All of these elements provide a training experience that cannot be duplicated anywhere else in the country.

  15. T-1 Training Area

    ScienceCinema (OSTI)

    None

    2015-01-09T23:59:59.000Z

    Another valuable homeland security asset at the NNSS is the T-1 training area, which covers more than 10 acres and includes more than 20 separate training venues. Local, County, and State first responders who train here encounter a variety of realistic disaster scenarios. A crashed 737 airliner lying in pieces across the desert, a helicopter and other small aircraft, trucks, buses, and derailed train cars are all part of the mock incident scene. After formal classroom education, first responders are trained to take immediate decisive action to prevent or mitigate the use of radiological or nuclear devices by terrorists. The Counterterrorism Operations Support Center for Radiological Nuclear Training conducts the courses and exercises providing first responders from across the nation with the tools they need to protect their communities. All of these elements provide a training experience that cannot be duplicated anywhere else in the country.

  16. Functional Area Assessments Project Charter Workstream Name Functional Area Assessments

    E-Print Network [OSTI]

    Sheridan, Jennifer

    with Huron on detailed project plan. Subject Experts Subject Expert Role Functional leadership Administrative1 of 2 Functional Area Assessments ­ Project Charter Workstream Name Functional Area Assessments - Internal Budgeting - Human Resources These diagnostics will be performed using interviews, surveys, data

  17. Surface Water Management Areas (Virginia)

    Broader source: Energy.gov [DOE]

    This legislation establishes surface water management areas, geographically defined surface water areas in which the State Water Control Board has deemed the levels or supply of surface water to be...

  18. Boundary Waters Canoe Area (Minnesota)

    Broader source: Energy.gov [DOE]

    The Boundary Waters Canoe Area occupies a large section of northern Minnesota, and is preserved as a primitive wilderness area. Construction and new development is prohibited. A map of the...

  19. Communication in Home Area Networks

    E-Print Network [OSTI]

    Wang, Yubo

    2012-01-01T23:59:59.000Z

    used in area like smart buildings, street light controls andbuilding. This section focuses on HAN design to address two smart

  20. Superconductor rotor cooling system

    DOE Patents [OSTI]

    Gamble, Bruce B.; Sidi-Yekhlef, Ahmed; Schwall, Robert E.; Driscoll, David I.; Shoykhet, Boris A.

    2004-11-02T23:59:59.000Z

    A system for cooling a superconductor device includes a cryocooler located in a stationary reference frame and a closed circulation system external to the cryocooler. The closed circulation system interfaces the stationary reference frame with a rotating reference frame in which the superconductor device is located. A method of cooling a superconductor device includes locating a cryocooler in a stationary reference frame, and transferring heat from a superconductor device located in a rotating reference frame to the cryocooler through a closed circulation system external to the cryocooler. The closed circulation system interfaces the stationary reference frame with the rotating reference frame.

  1. Superconductor rotor cooling system

    DOE Patents [OSTI]

    Gamble, Bruce B. (Wellesley, MA); Sidi-Yekhlef, Ahmed (Framingham, MA); Schwall, Robert E. (Northborough, MA); Driscoll, David I. (South Euclid, OH); Shoykhet, Boris A. (Beachwood, OH)

    2002-01-01T23:59:59.000Z

    A system for cooling a superconductor device includes a cryocooler located in a stationary reference frame and a closed circulation system external to the cryocooler. The closed circulation system interfaces the stationary reference frame with a rotating reference frame in which the superconductor device is located. A method of cooling a superconductor device includes locating a cryocooler in a stationary reference frame, and transferring heat from a superconductor device located in a rotating reference frame to the cryocooler through a closed circulation system external to the cryocooler. The closed circulation system interfaces the stationary reference frame with the rotating reference frame.

  2. Fire Hazards Analysis for the 200 Area Interim Storage Area

    SciTech Connect (OSTI)

    JOHNSON, D.M.

    2000-01-06T23:59:59.000Z

    This documents the Fire Hazards Analysis (FHA) for the 200 Area Interim Storage Area. The Interim Storage Cask, Rad-Vault, and NAC-1 Cask are analyzed for fire hazards and the 200 Area Interim Storage Area is assessed according to HNF-PRO-350 and the objectives of DOE Order 5480 7A. This FHA addresses the potential fire hazards associated with the Interim Storage Area (ISA) facility in accordance with the requirements of DOE Order 5480 7A. It is intended to assess the risk from fire to ensure there are no undue fire hazards to site personnel and the public and to ensure property damage potential from fire is within acceptable limits. This FHA will be in the form of a graded approach commensurate with the complexity of the structure or area and the associated fire hazards.

  3. DOE Designates Southwest Area and Mid-Atlantic Area National...

    Energy Savers [EERE]

    twelve years. The Mid-Atlantic Area National Corridor includes certain counties in Ohio, West Virginia, Pennsylvania, New York, Maryland, Virginia, and all of New Jersey,...

  4. area spoil area: Topics by E-print Network

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

    populations. It is part of a network of AHEC organiza- tions Collins, Gary S. 25 tight environment high radiation area Physics Websites Summary: , no active electronics ...

  5. Communication in Home Area Networks

    E-Print Network [OSTI]

    Wang, Yubo

    2012-01-01T23:59:59.000Z

    and implementation of smart home energy management systemsStandard Technologies for Smart Home Area Networks EnablingInteroperability framework for smart home systems”, Consumer

  6. Tech Area II: A history

    SciTech Connect (OSTI)

    Ullrich, R. [Ktech Corp., Albuquerque, NM (United States)] [Ktech Corp., Albuquerque, NM (United States)

    1998-07-01T23:59:59.000Z

    This report documents the history of the major buildings in Sandia National Laboratories` Technical Area II. It was prepared in support of the Department of Energy`s compliance with Section 106 of the National Historic Preservation Act. Technical Area II was designed and constructed in 1948 specifically for the final assembly of the non-nuclear components of nuclear weapons, and was the primary site conducting such assembly until 1952. Both the architecture and location of the oldest buildings in the area reflect their original purpose. Assembly activities continued in Area II from 1952 to 1957, but the major responsibility for this work shifted to other sites in the Atomic Energy Commission`s integrated contractor complex. Gradually, additional buildings were constructed and the original buildings were modified. After 1960, the Area`s primary purpose was the research and testing of high-explosive components for nuclear weapons. In 1994, Sandia constructed new facilities for work on high-explosive components outside of the original Area II diamond-shaped parcel. Most of the buildings in the area are vacant and Sandia has no plans to use them. They are proposed for decontamination and demolition as funding becomes available.

  7. Hanford 200 Areas Development Plan

    SciTech Connect (OSTI)

    Rinne, C.A.; Daly, K.S.

    1993-08-01T23:59:59.000Z

    The purpose of the Hanford 200 Areas Development Plan (Development Plan) is to guide the physical development of the 200 Areas (which refers to the 200 East Area, 200 West Area, and 200 Area Corridor, located between the 200 East and 200 West Areas) in accordance with US Department of Energy (DOE) Order 4320.lB (DOE 1991a) by performing the following: Establishing a land-use plan and setting land-use categories that meet the needs of existing and proposed activities. Coordinating existing, 5-year, and long-range development plans and guiding growth in accordance with those plans. Establishing development guidelines to encourage cost-effective development and minimize conflicts between adjacent activities. Identifying site development issues that need further analysis. Integrating program plans with development plans to ensure a logical progression of development. Coordinate DOE plans with other agencies [(i.e., Washington State Department of Ecology (Ecology) and US Environmental Protection Agency (EPA)]. Being a support document to the Hanford Site Development Plan (DOE-RL 1990a) (parent document) and providing technical site information relative to the 200 Areas.

  8. AREA

    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 2015ofDepartmentDepartment of2 of 5) ALARA TrainingANDREW W.categoricalHSS/UNIONAREA

  9. The Program Area Committee Chairperson.

    E-Print Network [OSTI]

    Marshall, Mary; Richardson, Burl B.

    1986-01-01T23:59:59.000Z

    worksheets and others. Prepared by Mary G. Marshall and Burl B. RichardsQ Extension program development specialists, The Texas A&M University System. THE PROGRAM AREA COMMITTEE CHAIRPERSON You Hold an Important Position! Whenever people gather...

  10. Focus Area Tax Credits (Maryland)

    Broader source: Energy.gov [DOE]

    Focus Area Tax Credits for businesses in Baltimore City or Prince George’s County enterprise zones include: (1) Ten-year, 80% credit against local real property taxes on a portion of real property...

  11. Security Area Vouching and Piggybacking

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2000-06-05T23:59:59.000Z

    Establishes requirements for the Department of Energy (DOE) Security Area practice of "vouching" or "piggybacking" access by personnel. DOE N 251.40, dated 5-3-01, extends this directive until 12-31-01.

  12. Progress Update: M Area Closure

    ScienceCinema (OSTI)

    Cody, Tom

    2012-06-14T23:59:59.000Z

    A progress update of the Recovery Act at work at the Savannah River Site. The celebration of the first area cleanup completion with the help of the Recovery Act.

  13. Protected Water Area System (Iowa)

    Broader source: Energy.gov [DOE]

    The Natural Resource Commission maintains a state plan for the design and establishment of a protected water area system and those adjacent lands needed to protect the integrity of that system. A...

  14. Wellhead Protection Area Act (Nebraska)

    Broader source: Energy.gov [DOE]

    This section regulates activities which can occur on or below the land surface of the area surrounding a wellhead. The purpose of these regulations is to limit well contamination and preserve...

  15. Variable area fuel cell cooling

    DOE Patents [OSTI]

    Kothmann, Richard E. (Churchill Borough, PA)

    1982-01-01T23:59:59.000Z

    A fuel cell arrangement having cooling fluid flow passages which vary in surface area from the inlet to the outlet of the passages. A smaller surface area is provided at the passage inlet, which increases toward the passage outlet, so as to provide more uniform cooling of the entire fuel cell. The cooling passages can also be spaced from one another in an uneven fashion.

  16. Biological Inventory Colorado Canyons National Conservation Area

    E-Print Network [OSTI]

    Biological Inventory of the Colorado Canyons National Conservation Area Prepared by: Joe Stevens .............................. 12 Identify Targeted Inventory Areas

  17. 100 Areas CERCLA ecological investigations

    SciTech Connect (OSTI)

    Landeen, D.S.; Sackschewsky, M.R.; Weiss, S.

    1993-09-01T23:59:59.000Z

    This document reports the results of the field terrestrial ecological investigations conducted by Westinghouse Hanford Company during fiscal years 1991 and 1992 at operable units 100-FR-3, 100-HR-3, 100-NR-2, 100-KR-4, and 100-BC-5. The tasks reported here are part of the Remedial Investigations conducted in support of the Comprehensive Environmental Response, compensation, and Liability Act of 1980 studies for the 100 Areas. These ecological investigations provide (1) a description of the flora and fauna associated with the 100 Areas operable units, emphasizing potential pathways for contaminants and species that have been given special status under existing state and/or federal laws, and (2) an evaluation of existing concentrations of heavy metals and radionuclides in biota associated with the 100 Areas operable units.

  18. Plutonium focus area: Technology summary

    SciTech Connect (OSTI)

    NONE

    1996-03-01T23:59:59.000Z

    To ensure research and development programs focus on the most pressing environmental restoration and waste management problems at the U.S. Department of Energy (DOE), the Assistant Secretary for the Office of Environmental Management (EM) established a working group in August 1993 to implement a new approach to research and technology development. As part of this approach, EM developed a management structure and principles that led to creation of specific focus areas. These organizations were designed to focus scientific and technical talent throughout DOE and the national scientific community on major environmental restoration and waste management problems facing DOE. The focus area approach provides the framework for inter-site cooperation and leveraging of resources on common problems. After the original establishment of five major focus areas within the Office of Technology Development (EM-50), the Nuclear Materials Stabilization Task Group (NMSTG, EM-66) followed EM-50`s structure and chartered the Plutonium Focus Area (PFA). NMSTG`s charter to the PFA, described in detail later in this book, plays a major role in meeting the EM-66 commitments to the Defense Nuclear Facilities Safety Board (DNFSB). The PFA is a new program for FY96 and as such, the primary focus of revision 0 of this Technology Summary is an introduction to the Focus Area; its history, development, and management structure, including summaries of selected technologies being developed. Revision 1 to the Plutonium Focus Area Technology Summary is slated to include details on all technologies being developed, and is currently planned for release in August 1996. The following report outlines the scope and mission of the Office of Environmental Management, EM-60, and EM-66 organizations as related to the PFA organizational structure.

  19. EA-1177: Salvage/Demolition of 200 West Area, 200 East Area, and 300 Area Steam Plants, Richland, Washington

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts for the proposal to salvage and demolish the 200 West Area, 200 East Area, and 300 Area steam plants and their associated steam distribution piping...

  20. Montana Natural Areas Act of 1974 (Montana)

    Broader source: Energy.gov [DOE]

    The Montana Natural Areas Act of 1974 provides for the designation and establishment of a system of natural areas in order to preserve the natural ecosystems of these areas. Designated natural...

  1. Variable area light reflecting assembly

    DOE Patents [OSTI]

    Howard, T.C.

    1986-12-23T23:59:59.000Z

    Device is described for tracking daylight and projecting it into a building. The device tracks the sun and automatically adjusts both the orientation and area of the reflecting surface. The device may be mounted in either a wall or roof of a building. Additionally, multiple devices may be employed in a light shaft in a building, providing daylight to several different floors. The preferred embodiment employs a thin reflective film as the reflecting device. One edge of the reflective film is fixed, and the opposite end is attached to a spring-loaded take-up roller. As the sun moves across the sky, the take-up roller automatically adjusts the angle and surface area of the film. Additionally, louvers may be mounted at the light entrance to the device to reflect incoming daylight in an angle perpendicular to the device to provide maximum reflective capability when daylight enters the device at non-perpendicular angles. 9 figs.

  2. Variable area light reflecting assembly

    DOE Patents [OSTI]

    Howard, Thomas C. (Raleigh, NC)

    1986-01-01T23:59:59.000Z

    Device for tracking daylight and projecting it into a building. The device tracks the sun and automatically adjusts both the orientation and area of the reflecting surface. The device may be mounted in either a wall or roof of a building. Additionally, multiple devices may be employed in a light shaft in a building, providing daylight to several different floors. The preferred embodiment employs a thin reflective film as the reflecting device. One edge of the reflective film is fixed, and the opposite end is attached to a spring-loaded take-up roller. As the sun moves across the sky, the take-up roller automatically adjusts the angle and surface area of the film. Additionally, louvers may be mounted at the light entrance to the device to reflect incoming daylight in an angle perpendicular to the device to provide maximum reflective capability when daylight enters the device at non-perpendicular angles.

  3. Innovation investment area: Technology summary

    SciTech Connect (OSTI)

    Not Available

    1994-03-01T23:59:59.000Z

    The mission of Environmental Management`s (EM) Office of Technology Development (OTD) Innovation Investment Area is to identify and provide development support for two types of technologies that are developed to characterize, treat and dispose of DOE waste, and to remediate contaminated sites. They are: technologies that show promise to address specific EM needs, but require proof-of-principle experimentation; and (2) already proven technologies in other fields that require critical path experimentation to demonstrate feasibility for adaptation to specific EM needs. The underlying strategy is to ensure that private industry, other Federal Agencies, universities, and DOE National Laboratories are major participants in developing and deploying new and emerging technologies. To this end, about 125 different new and emerging technologies are being developed through Innovation Investment Area`s (IIA) two program elements: RDDT&E New Initiatives (RD01) and Interagency Agreements (RD02). Both of these activities are intended to foster research and development partnerships so as to introduce innovative technologies into other OTD program elements for expedited evaluation.

  4. Chickasaw National Recreational Area, Chickasaw, Oklahoma | Department...

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

    Chickasaw National Recreational Area, Chickasaw, Oklahoma Chickasaw National Recreational Area, Chickasaw, Oklahoma Photo of Comfort Station at the Chickasaw National Recreation...

  5. Quality Assurance Functional Area Qualification Standard - DOE...

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

    50-2013, Quality Assurance Functional Area Qualification Standard by Administrator The Quality Assurance (QA) Functional Area Qualification Standard (FAQS) establishes common...

  6. Aquifer Protection Area Land Use Regulations (Connecticut)

    Broader source: Energy.gov [DOE]

    These regulations describe allowable activities within aquifer protection areas, the procedure by which such areas are delineated, and relevant permit requirements. The regulations also describe...

  7. Geothermal Literature Review At International Geothermal Area...

    Open Energy Info (EERE)

    Hvalfjordur Fjord area, re: Heat flow References G. Ranalli, L. Rybach (2005) Heat Flow, Heat Transfer And Lithosphere Rheology In Geothermal Areas- Features And Examples...

  8. Geothermal Literature Review At International Geothermal Area...

    Open Energy Info (EERE)

    Latera area, Tuscany, re: Heat Flow References G. Ranalli, L. Rybach (2005) Heat Flow, Heat Transfer And Lithosphere Rheology In Geothermal Areas- Features And Examples...

  9. Technical Area (TA)-54 Area G Nitrate-Salt Waste Container Response...

    Office of Environmental Management (EM)

    Technical Area (TA)-54 Area G Nitrate-Salt Waste Container Response Instructions Technical Area (TA)-54 Area G Nitrate-Salt Waste Container Response Instructions This document was...

  10. Structural health and prognostics management for offshore wind turbines : case studies of rotor fault and blade damage with initial O&M cost modeling.

    SciTech Connect (OSTI)

    Myrent, Noah J. [Purdue Center for Systems Integrity, Lafayette, IN; Kusnick, Joshua F. [Purdue Center for Systems Integrity, Lafayette, IN; Barrett, Natalie C. [Purdue Center for Systems Integrity, Lafayette, IN; Adams, Douglas E. [Purdue Center for Systems Integrity, Lafayette, IN; Griffith, Daniel Todd

    2013-04-01T23:59:59.000Z

    Operations and maintenance costs for offshore wind plants are significantly higher than the current costs for land-based (onshore) wind plants. One way to reduce these costs would be to implement a structural health and prognostic management (SHPM) system as part of a condition based maintenance paradigm with smart load management and utilize a state-based cost model to assess the economics associated with use of the SHPM system. To facilitate the development of such a system a multi-scale modeling approach developed in prior work is used to identify how the underlying physics of the system are affected by the presence of damage and faults, and how these changes manifest themselves in the operational response of a full turbine. This methodology was used to investigate two case studies: (1) the effects of rotor imbalance due to pitch error (aerodynamic imbalance) and mass imbalance and (2) disbond of the shear web; both on a 5-MW offshore wind turbine in the present report. Based on simulations of damage in the turbine model, the operational measurements that demonstrated the highest sensitivity to the damage/faults were the blade tip accelerations and local pitching moments for both imbalance and shear web disbond. The initial cost model provided a great deal of insight into the estimated savings in operations and maintenance costs due to the implementation of an effective SHPM system. The integration of the health monitoring information and O&M cost versus damage/fault severity information provides the initial steps to identify processes to reduce operations and maintenance costs for an offshore wind farm while increasing turbine availability, revenue, and overall profit.

  11. Personal Background andPersonal Background and AreasAreas ofof InterestInterest

    E-Print Network [OSTI]

    Boehning, Dankmar

    General Topics CurrentCurrent AreasAreas ofof InterestInterest ResearchResearch AreasAreas inin Preperation InterestInterest ResearchResearch AreasAreas inin PreperationPreperation #12;Personal BackgroundHistory BesidesBesides cooperatingcooperating inin severalseveral projectsprojects in SEin SE AsiaAsia oneone

  12. Tanks focus area. Annual report

    SciTech Connect (OSTI)

    Frey, J.

    1997-12-31T23:59:59.000Z

    The U.S. Department of Energy Office of Environmental Management is tasked with a major remediation project to treat and dispose of radioactive waste in hundreds of underground storage tanks. These tanks contain about 90,000,000 gallons of high-level and transuranic wastes. We have 68 known or assumed leaking tanks, that have allowed waste to migrate into the soil surrounding the tank. In some cases, the tank contents have reacted to form flammable gases, introducing additional safety risks. These tanks must be maintained in the safest possible condition until their eventual remediation to reduce the risk of waste migration and exposure to workers, the public, and the environment. Science and technology development for safer, more efficient, and cost-effective waste treatment methods will speed up progress toward the final remediation of these tanks. The DOE Office of Environmental Management established the Tanks Focus Area to serve as the DOE-EM`s technology development program for radioactive waste tank remediation in partnership with the Offices of Waste Management and Environmental Restoration. The Tanks Focus Area is responsible for leading, coordinating, and facilitating science and technology development to support remediation at DOE`s four major tank sites: the Hanford Site in Washington State, Idaho National Engineering and Environmental Laboratory in Idaho, Oak Ridge Reservation in Tennessee, and the Savannah River Site in South Carolina. The technical scope covers the major functions that comprise a complete tank remediation system: waste retrieval, waste pretreatment, waste immobilization, tank closure, and characterization of both the waste and tank. Safety is integrated across all the functions and is a key component of the Tanks Focus Area program.

  13. History of 100-B Area

    SciTech Connect (OSTI)

    Wahlen, R.K.

    1989-10-01T23:59:59.000Z

    The initial three production reactors and their support facilities were designated as the 100-B, 100-D, and 100-F areas. In subsequent years, six additional plutonium-producing reactors were constructed and operated at the Hanford Site. Among them was one dual-purpose reactor (100-N) designed to supply steam for the production of electricity as a by-product. Figure 1 pinpoints the location of each of the nine Hanford Site reactors along the Columbia River. This report documents a brief description of the 105-B reactor, support facilities, and significant events that are considered to be of historical interest. 21 figs.

  14. Resource Areas of Texas: Land.

    E-Print Network [OSTI]

    Godfrey, Curtis L.; Carter, Clarence R.; McKee, Gordon S.

    1967-01-01T23:59:59.000Z

    Prairie (Coastal ~~~(l), soils are less acid and some are calcareous. Main series: lrictoria, Orelia, Clareville. ~ight, acid sands and darker, loamy to clayey soils-some $;dine and sodic-lie in a narrow band along the coast. Main aeries: Harris...). Mai series: Truce, Waurika, Brown, moderately deep 11 shallow, calcareous, clay1 a1 oils are alg common. Main series: (: 1 to alk nts; somt Bonti. ey soils >wens. over sh Bottomlands-minor areas or brown to clam gray, loam1 1 Main senes 3...

  15. Texas Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDITCalifornia Sector:Shrenik IndustriesStateTagsTexas Area Jump to:

  16. Focus Areas | Department of Energy

    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 off Energy.gov.Energy02.pdf7 OPAM Flash2011-37 OPAM DOE O 413.2B Admin ChgFocus Areas Focus

  17. Surrounding Area Restaurants...Hungry

    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 directedAnnual Siteof Energy 2, 2015 - January 16, 2015 Summary ofAboutDepartmentControlSurrounding Area

  18. Geothermal resource evaluation of the Yuma area

    SciTech Connect (OSTI)

    Poluianov, E.W.; Mancini, F.P.

    1985-11-29T23:59:59.000Z

    This report presents an evaluation of the geothermal potential of the Yuma, Arizona area. A description of the study area and the Salton Trough area is followed by a geothermal analysis of the area, a discussion of the economics of geothermal exploration and exploitation, and recommendations for further testing. It was concluded economic considerations do not favor geothermal development at this time. (ACR)

  19. 300 Area signal cable study

    SciTech Connect (OSTI)

    Whattam, J.W.

    1994-09-15T23:59:59.000Z

    This report was prepared to discuss the alternatives available for removing the 300 Area overhead signal cable system. This system, installed in 1969, has been used for various monitoring and communication signaling needs throughout the 300 Area. Over the years this cabling system has deteriorated, has been continually reconfigured, and has been poorly documented to the point of nonreliability. The first step was to look at the systems utilizing the overhead signal cable that are still required for operation. Of the ten systems that once operated via the signal cable, only five are still required; the civil defense evacuation alarms, the public address (PA) system, the criticality alarms, the Pacific Northwest Laboratory Facilities Management Control System (FMCS), and the 384 annunciator panel. Of these five, the criticality alarms and the FMCS have been dealt with under other proposals. Therefore, this study focused on the alternatives available for the remaining three systems (evacuation alarms, PA system, and 384 panel) plus the accountability aid phones. Once the systems to be discussed were determined, then three alternatives for providing the signaling pathway were examined for each system: (1) re-wire using underground communication ducts, (2) use the Integrated Voice/Data Telecommunications System (IVDTS) already installed and operated by US West, and (3) use radio control. Each alternative was developed with an estimated cost, advantages, and disadvantages. Finally, a recommendation was provided for the best alternative for each system.

  20. Aerodynamic Design for Swept-wing Laminar Flow

    E-Print Network [OSTI]

    Belisle, Michael Joseph

    2013-11-08T23:59:59.000Z

    (SARGE), a natural laminar flow and passive laminar flow control wing glove flight experiment funded by the NASA Environmentally Responsible Aviation initiative. The experiment seeks to raise the technology readiness level of the spanwise...

  1. Noninvasive identification of fluids by swept-frequency acoustic interferometry

    DOE Patents [OSTI]

    Sinha, Dipen N. (Los Alamos, NM)

    1998-01-01T23:59:59.000Z

    A method for rapid, noninvasive identification and monitoring of chemicals in sealed containers or containers where direct access to the chemical is not possible is described. Multiple ultrasonic acoustic properties (up to four) of a fluid are simultaneously determined. The present invention can be used for chemical identification and for determining changes in known chemicals from a variety of sources. It is not possible to identify all known chemicals based on the measured parameters, but known classes of chemicals in suspected containers, such as in chemical munitions, can be characterized. In addition, a large number of industrial chemicals can be identified.

  2. Swept Away by Alternative Energy | Department of Energy

    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,Zaleski -BlueprintThis documentEnergy(SHINES) Funding OpportunityMBC

  3. Large Area Vacuum Deposited Coatings

    SciTech Connect (OSTI)

    Martin, Peter M.

    2003-04-30T23:59:59.000Z

    It's easy to make the myriad of types of large area and decorative coatings for granted. We probably don't even think about most of them; the low-e and heat mirror coatings on our windows and car windows, the mirrors in displays, antireflection coatings on windows and displays, protective coatings on aircraft windows, heater coatings on windshields and aircraft windows, solar reflectors, thin film solar cells, telescope mirrors, Hubble mirrors, transparent conductive coatings, and the list goes on. All these products require large deposition systems and chambers. Also, don't forget that large batches of small substrates or parts are coated in large chambers. In order to be cost effective hundreds of ophthalmic lenses, automobile reflectors, display screens, lamp reflectors, cell phone windows, laser reflectors, DWDM filters, are coated in batches.

  4. Ashland Area Support Substation Project

    SciTech Connect (OSTI)

    Not Available

    1992-06-01T23:59:59.000Z

    The Bonneville Power Administration (BPA) provides wholesale electric service to the City of Ashland (the City) by transferring power over Pacific Power Light Company's (PP L) 115-kilovolt (kV) transmission lines and through PP L's Ashland and Oak Knoll Substations. The City distributes power over a 12.5-kV system which is heavily loaded during winter peak periods and which has reached the limit of its ability to serve peak loads in a reliable manner. Peak loads under normal winter conditions have exceeded the ratings of the transformers at both the Ashland and Oak Knoll Substations. In 1989, the City modified its distribution system at the request of PP L to allow transfer of three megawatts (MW's) of electric power from the overloaded Ashland Substation to the Oak Knoll Substation. In cooperation with PP L, BPA installed a temporary 6-8 megavolt-amp (MVA) 115-12.5-kV transformer for this purpose. This additional transformer, however, is only a temporary remedy. BPA needs to provide additional, reliable long-term service to the Ashland area through additional transformation in order to keep similar power failures from occurring during upcoming winters in the Ashland area. The temporary installation of another 20-MVA mobile transformer at the Ashland Substation and additional load curtailment are currently being studied to provide for sustained electrical service by the peak winter period 1992. Two overall electrical plans-of-service are described and evaluated in this report. One of them is proposed for action. Within that proposed plan-of-service are location options for the substation. Note that descriptions of actions that may be taken by the City of Ashland are based on information provided by them.

  5. Game Preserves and Closed Areas (Montana)

    Broader source: Energy.gov [DOE]

    Game preserves and closed areas exist within the state of Montana for the protection of all the game animals and birds. Construction and development is limited in these areas. Currently, only three...

  6. Critical Areas of State Concern (Maryland)

    Broader source: Energy.gov [DOE]

    This legislation designates the Chesapeake Bay, other Atlantic Coastal Bays, and their tributaries and adjacent lands as critical areas of state concern. It is state policy to protect these areas...

  7. Electricity Suppliers' Service Area Assignments (Indiana)

    Broader source: Energy.gov [DOE]

    To promote efficiency and avoid waste and duplication, rural and unincorporated areas of Indiana are divided into geographic areas, to be assigned to an electricity provider that will have the sole...

  8. Plutonium focus area. Technology summary

    SciTech Connect (OSTI)

    NONE

    1997-09-01T23:59:59.000Z

    The Assistant Secretary for the Office of Environmental Management (EM) at the U.S. Department of Energy (DOE) chartered the Plutonium Focus Area (PFA) in October 1995. The PFA {open_quotes}...provides for peer and technical reviews of research and development in plutonium stabilization activities...{close_quotes} In addition, the PFA identifies and develops relevant research and technology. The purpose of this document is to focus attention on the requirements used to develop research and technology for stabilization, storage, and preparation for disposition of nuclear materials. The PFA Technology Summary presents the approach the PFA uses to identify, recommend, and review research. It lists research requirements, research being conducted, and gaps where research is needed. It also summarizes research performed by the PFA in the traditional research summary format. This document encourages researchers and commercial enterprises to do business with PFA by submitting research proposals or {open_quotes}white papers.{close_quotes} In addition, it suggests ways to increase the likelihood that PFA will recommend proposed research to the Nuclear Materials Stabilization Task Group (NMSTG) of DOE.

  9. Optimization Online - All Areas Submissions - January 2011

    E-Print Network [OSTI]

    All Areas Submissions - January 2011. Linear, Cone and ... Anders Skajaa, John Bagterp Jřrgensen, Per Christian Hansen. Convex and Nonsmooth ...

  10. D-Area Preliminary Hazards Analysis

    SciTech Connect (OSTI)

    Blanchard, A. [Westinghouse Savannah River Company, AIKEN, SC (United States); Paik, I.R. [Westinghouse Safety Management Solutions, , ()

    1998-04-01T23:59:59.000Z

    A comprehensive review of hazards associated with the D-Area was performed to identify postulated event scenarios.

  11. Geographic Information System At International Geothermal Area...

    Open Energy Info (EERE)

    search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic Information System At International Geothermal Area, Indonesia (Nash, Et Al., 2002) Exploration...

  12. Optimization Online - All Areas Submissions - February 2011

    E-Print Network [OSTI]

    Stochastic Optimization for Power System Configuration with Renewable Energy in Remote Areas Ludwig Kuznia, Bo Zeng, Grisselle Centeno, Zhixin Miao.

  13. Considering LEDs for Street and Area Lighting

    Broader source: Energy.gov [DOE]

    View Jim Brodrick's keynote video from the September 2009 IES Street and Area Lighting Conference in Philadelphia.

  14. Sandia Energy - National Rotor Testbed Rotor Design Integrated Airfoil

    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:Energy: Grid Integration Redefining What's PossibleRadiationImplementing Nonlinear757Kelley Ruehl HomeCommissioning HomeMore EnergyEarth

  15. Local control of area-preserving maps

    E-Print Network [OSTI]

    Cristel Chandre; Michel Vittot; Guido Ciraolo

    2008-09-01T23:59:59.000Z

    We present a method of control of chaos in area-preserving maps. This method gives an explicit expression of a control term which is added to a given area-preserving map. The resulting controlled map which is a small and suitable modification of the original map, is again area-preserving and has an invariant curve whose equation is explicitly known.

  16. Original article Photosynthesis, leaf area and productivity

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Original article Photosynthesis, leaf area and productivity of 5 poplar clones during; The stem volume and biomass (stem + branches) production, net photosynthesis of mature leaves and leaf area found in volume production, woody biomass production, total leaf area and net photosynthesis. Above

  17. Introduction Marine protected areas (MPA's) are

    E-Print Network [OSTI]

    67(1) 1 Introduction Marine protected areas (MPA's) are an important tool for managing fisheries protected area is "any area of the marine environ- ment that has been reserved by Federal, State, tribal, territorial, or local laws or regulations to provide lasting protection for part or all of the natural

  18. Sandia Energy - Rotor Aerodynamic Design

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol Home Distribution GridDocuments Home Stationary PowerResearchRisk and

  19. Sandia Energy - Rotor Design Tools

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol Home Distribution GridDocuments Home Stationary PowerResearchRisk

  20. Sandia Energy - SMART Rotor Video

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol Home Distribution GridDocuments Home StationaryFAQs HomeProgramSCADASMART

  1. Redevelopment of Areas Needing Redevelopment Generally (Indiana)

    Broader source: Energy.gov [DOE]

    Redevelopment commissions are responsible for developing plans and managing tools used to address conditions of blight (redevelopment areas) and underutilized land of economic significance ...

  2. Research Areas | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    radiation-dominated HED dynamo, and radiation-dominated reconnection. Nonlinear Optics of Plasmas and Laser-Plasma Interactions Specific areas of interest include, but are...

  3. area: Topics by E-print Network

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

    populations. It is part of a network of AHEC organiza- tions Collins, Gary S. 25 tight environment high radiation area Physics Websites Summary: , no active electronics ...

  4. areas: Topics by E-print Network

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

    populations. It is part of a network of AHEC organiza- tions Collins, Gary S. 25 tight environment high radiation area Physics Websites Summary: , no active electronics ...

  5. Safety Software Quality Assurance Functional Area Qualification...

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

    72-2011, Safety Software Quality Assurance Functional Area Qualification Standard by Diane Johnson This SSQA FAQS identifies the minimum technical competency requirements for DOE...

  6. The Ohio Community Reinvestment Area (Ohio)

    Broader source: Energy.gov [DOE]

    The Ohio Community Reinvestment Area program is an economic development tool administered by municipal and county government that provides real property tax exemptions for property owners who...

  7. DFAS Wide-Area Workflow Issues

    Broader source: Energy.gov [DOE]

    Presentation covers the DFAS wide-area workflow issues and is given at the Spring 2011 Federal Utility Partnership Working Group (FUPWG) meeting.

  8. Geothermal Literature Review At International Geothermal Area...

    Open Energy Info (EERE)

    Taupo, North Island, re: Heat Flow References G. Ranalli, L. Rybach (2005) Heat Flow, Heat Transfer And Lithosphere Rheology In Geothermal Areas- Features And Examples...

  9. Management of Specific Flood Plain Areas (Iowa)

    Broader source: Energy.gov [DOE]

    Floodplain management orders by the Iowa Department of Natural Resources as well as approved local ordinances designate an area as a regulated floodplain. These regulations establish minimum...

  10. White Etch Areas: Metallurgical Characterization and Atomistic...

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

    and Atomistic Modeling Presented by R. Scott Hyde of Timken Company at the 2014 Wind Turbine Tribology Seminar Timken Hyde White Etch Areas ANL Presentation Oct 2014...

  11. Postdoctoral Scholar position Area: Mathematics Education

    E-Print Network [OSTI]

    de Leon, Alex R.

    with the City of Calgary's vibrant energy and diversity. The university is home to scholars in 14 facultiesPostdoctoral Scholar position Area: Mathematics Education Duration: 18 months Start date: January 1, invites applications for a Postdoctoral Fellowship in the area of mathematics education. This competition

  12. ARRA Proposed Award: Retrofit Bay Area

    E-Print Network [OSTI]

    ARRA Proposed Award: Retrofit Bay Area Counties of Alameda, Contra Costa, Marin, San Francisco per year Prime contractor: Association of Bay Area Governments (ABAG) Sub contractors: Alameda County Waste Management Authority (StopWaste.org) County of Contra Costa County of Marin City

  13. BUILDING 96 RECOMMENDATION FOR SOURCE AREA REMEDIATION

    E-Print Network [OSTI]

    OU III BUILDING 96 RECOMMENDATION FOR SOURCE AREA REMEDIATION FINAL Prepared by: Brookhaven FOR U.S. Department of Energy March 2009 #12;i OU III BUILDING 96 RECOMMENDATION FOR SOURCE AREA..................................................................................................................4 4.0 Building 96 ­ Operational Background

  14. Radiation Protection Surveys in Clinical Areas

    E-Print Network [OSTI]

    Jia, Songtao

    Radiation Protection Surveys in Clinical Areas Procedure: 7.521 Created: 4/23/2014 Version: 1 as low as reasonably achievable (ALARA) it is necessary to perform routine radiation protection surveys minute (DPM) or below. Results should be recorded in DPM. a. Survey Areas #12;Radiation Protection

  15. Industrial & Systems Engineering Areas of Engineering Interests

    E-Print Network [OSTI]

    Berdichevsky, Victor

    Industrial & Systems Engineering Areas of Engineering Interests The Department of Industrial and Systems Engineering understands our students may work as Industrial Engineers in other engineering industries, and to help prepare them for these careers, the ISE Areas of Interest was formulated. The courses

  16. Pine Ridge Area Community Wildfire Protection Plan

    E-Print Network [OSTI]

    Farritor, Shane

    Pine Ridge Area Community Wildfire Protection Plan Update 2013 West Ash Fire: Wednesday August 29 the boundary of the original plan to include all the area within the Upper Niobrara White Natural Resource, 2012 #12;Facilitated by: Nebraska Forest Service In cooperation with: Region 23 Fire Protection

  17. Thrust Area 2 Chemofluidic Vane Motor/ActuatorDr. Michael Goldfarb

    E-Print Network [OSTI]

    Barth, Eric J.

    from a monopropellant or bipropellant inert gas charge reaction as the working fluid. · Stator geometry. Once the trailing vane moves past the injection port, injection process ends and expansion process Five Proposed Work Schedule Outer stator diameter of 6.25 cm (2.5 in) Rotor diameter of 3.75 cm (1

  18. amplified genomic areas: Topics by E-print Network

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

    to usually as "Solutions") offers 18 focus areas covering a wealth of genetics and genomics areas, Biotechnology Websites Summary: ") offers 18 focus areas covering a wealth of...

  19. Controlling Tree Squirrels in Urban Areas

    E-Print Network [OSTI]

    Texas Wildlife Services

    2006-09-06T23:59:59.000Z

    In urban areas, tree squirrels can become pests when they eat pecans, berries, bird seed or vegetables from home gardens, or when they nest in attics. This leaflet discusses control of squirrels by fencing, trapping, poisoning and shooting....

  20. Redefining Housing Market Areas in Scotland 

    E-Print Network [OSTI]

    Muir, Christopher Iain

    2009-01-01T23:59:59.000Z

    This research aims to address some of the limitations inherent in the methods currently used for identification of Housing Market Areas (HMAs) in Scotland. Firstly the conventionally defined geography of HMAs for the four ...

  1. Coal seam natural gas producing areas (Louisiana)

    Broader source: Energy.gov [DOE]

    In order to prevent waste and to avoid the drilling of unnecessary wells and to encourage the development of coal seam natural gas producing areas in Louisiana, the commissioner of conservation is...

  2. 300 area TEDF permit compliance monitoring plan

    SciTech Connect (OSTI)

    BERNESKI, L.D.

    1998-11-20T23:59:59.000Z

    This document presents the permit compliance monitoring plan for the 300 Area Treated Effluent Disposal Facility (TEDF). It addresses the compliance with the National Pollutant Discharge Elimination System (NPDES) permit and Department of Natural Resources Aquatic Lands Sewer Outfall Lease.

  3. Sierra Nevada Region - Western Area Power Administration

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

    The Sierra Nevada Region is one of five offices in the Western Area Power Administration. SN markets power in northern and central California, and portions of Nevada, to wholesale...

  4. astronautical aste overview majors & areas of emphasis

    E-Print Network [OSTI]

    Rohs, Remo

    - communications, propulsion, structures and mechanisms, thermal control, power systems, launch systems Astronautical engineers design, build and operate space vehicles used in exploration and applications of places in areas such as electric propulsion, plasma physics, heliospheric structure, fundamental processes

  5. Fast Adaptive Silhouette Area based Template Matching

    E-Print Network [OSTI]

    Zachmann, Gabriel

    Fast Adaptive Silhouette Area based Template Matching Daniel Mohr and Gabriel Zachmann If (Technical Informatics and Computer Systems) Prof. Dr. Gabriel Zachmann (Computer Graphics) Prof. Dr Template Matching Daniel Mohr and Gabriel Zachmann Clausthal University of Technology, Department

  6. Knoxville Area Transit: Propane Hybrid Electric Trolleys

    SciTech Connect (OSTI)

    Not Available

    2005-04-01T23:59:59.000Z

    A 2-page fact sheet summarizing the evaluation done by the U.S. Department of Energy's Advanced Vehicle Testing Activity on the Knoxville Area Transit's use of propane hybrid electric trolleys.

  7. Regulating new construction in historic areas

    E-Print Network [OSTI]

    Sellers-Garcia, Oliver

    2006-01-01T23:59:59.000Z

    This study is an examination of how the restrictiveness of different design regulations impacts the process of new construction in historic areas. The North End, South End, and Back Bay neighborhoods of Boston were identified ...

  8. Critical Areas Act of 1973 (Minnesota)

    Broader source: Energy.gov [DOE]

    This Act applies to certain areas of the state with important historic, cultural, or esthetic values, or natural systems with functions of greater than local significance. Plans for a given...

  9. Managing Imported Fire Ants in Urban Areas

    E-Print Network [OSTI]

    Drees, Bastiaan M.

    2006-08-17T23:59:59.000Z

    individual colonies may occur that require individual mound treatment. Properties that border untreated areas such as agricultural lands, water edges, flood plains and wilderness will likely have a continuous reinfes- tation of ant colonies unless...

  10. Using mammographic density to predict breast cancer risk: dense area or percent dense area

    E-Print Network [OSTI]

    Stone, Jennifer; Ding, Jane; Warren, Ruth M L; Duffy, Stephen; Hopper, John L

    2010-11-18T23:59:59.000Z

    and dense area were strongly associated with breast cancer risk; however, inclusion of dense area in a PDA-adjusted model improved the pre- diction of breast cancer risk, but not vice versa. This suggests that, in terms of a single parameter, dense area... dense area alone. Conclusions: As a single parameter, dense area provides more information than PDA on breast cancer risk. Introduction A number of prospective, nested case control studies have shown that, for women of the same age, those with greater...

  11. Broad-area tandem semiconductor laser

    SciTech Connect (OSTI)

    Chen, T.R.; Mehuys, D.; Zhuang, Y.H.; Mittelstein, M.; Wang, H.; Derry, P.L.; Kajanto, M.; Yariv, A.

    1988-10-17T23:59:59.000Z

    A tandem combination of a uniform gain broad-area semiconductor laser and a (lateral) periodic gain section displays a stable, near-diffraction-limited single-lobed far-field pattern. The GaAs/GaAlAs quantum well lasers display a high degree of coherence across 60-..mu..m-wide apertures provided that the broad-area section is sufficiently long.

  12. Area and Volume Problems 1. Given the formula for the area of a square, derive the formula for the area of a rectangle

    E-Print Network [OSTI]

    Lee, Carl

    Area and Volume Problems 1. Given the formula for the area of a square, derive the formula for the area of a rectangle of dimensions a and b. 2. Given the formula for the area of a rectangle, derive the formula for the area of a parallelogram of base b and height h. 3. Use calculus to derive the formula

  13. Environmental assessment for the salvage/demolition of 200 West Area, 200 East Area, and 300 Area steam plants

    SciTech Connect (OSTI)

    NONE

    1996-10-01T23:59:59.000Z

    This environmental assessment has been prepared to assess potential environmental impacts associated with the US Department of Energy`s proposed action: the salvage/demolition of the 200 West Area, 200 East Area, and 300 Area Steam Plants and steam distribution piping. Impact information will be used by the US Department of Energy, Richland Operations Office Manager, to determine if the proposed action is a major federal action significantly affecting the quality of the human environment. If the proposed action is determined to be major and significant, an environmental impact statement will be prepared. If the proposed action is determined not to be major and significant, a Finding of No Significant Impact (FONSI) will be issued and the action can proceed. The proposed action involves the salvage and demolition of the 200 West Area, 200 East Are, and 300 Area steam plants and their associated steam distribution piping, equipment, and ancillary facilities. Activities include the salvaging and recycling of all materials, wastes, and equipment where feasible, with waste minimization efforts utilized.

  14. Metropolitan area network support at Fermilab

    SciTech Connect (OSTI)

    DeMar, Phil; Andrews, Chuck; Bobyshev, Andrey; Crawford, Matt; Colon, Orlando; Fry, Steve; Grigaliunas, Vyto; Lamore, Donna; Petravick, Don; /Fermilab

    2007-09-01T23:59:59.000Z

    Advances in wide area network service offerings, coupled with comparable developments in local area network technology have enabled many research sites to keep their offsite network bandwidth ahead of demand. For most sites, the more difficult and costly aspect of increasing wide area network capacity is the local loop, which connects the facility LAN to the wide area service provider(s). Fermilab, in coordination with neighboring Argonne National Laboratory, has chosen to provide its own local loop access through leasing of dark fiber to nearby network exchange points, and procuring dense wave division multiplexing (DWDM) equipment to provide data channels across those fibers. Installing and managing such optical network infrastructure has broadened the Laboratory's network support responsibilities to include operating network equipment that is located off-site, and is technically much different than classic LAN network equipment. Effectively, the Laboratory has assumed the role of a local service provider. This paper will cover Fermilab's experiences with deploying and supporting a Metropolitan Area Network (MAN) infrastructure to satisfy its offsite networking needs. The benefits and drawbacks of providing and supporting such a service will be discussed.

  15. The QUEST Large Area CCD Camera

    E-Print Network [OSTI]

    Charlie Baltay; David Rabinowitz; Peter Andrews; Anne Bauer; Nancy Ellman; William Emmet; Rebecca Hudson; Thomas Hurteau; Jonathan Jerke; Rochelle Lauer; Julia Silge; Andrew Szymkowiak; Brice Adams; Mark Gebhard; James Musser; Michael Doyle; Harold Petrie; Roger Smith; Robert Thicksten; John Geary

    2007-02-21T23:59:59.000Z

    We have designed, constructed and put into operation a very large area CCD camera that covers the field of view of the 1.2 m Samuel Oschin Schmidt Telescope at the Palomar Observatory. The camera consists of 112 CCDs arranged in a mosaic of four rows with 28 CCDs each. The CCDs are 600 x 2400 pixel Sarnoff thinned, back illuminated devices with 13 um x 13 um pixels. The camera covers an area of 4.6 deg x 3.6 deg on the sky with an active area of 9.6 square degrees. This camera has been installed at the prime focus of the telescope, commissioned, and scientific quality observations on the Palomar-QUEST Variability Sky Survey were started in September of 2003. The design considerations, construction features, and performance parameters of this camera are described in this paper.

  16. Rye Patch Geothermal Area | 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:Ezfeedflag JumpID-f < RAPID‎ |Rippey Jump to:WY) JumpLand Focus AreaGeothermal Area Jump

  17. Annex D-200 Area Interim Storage Area Final Safety Analysis Report [FSAR] [Section 1 & 2

    SciTech Connect (OSTI)

    CARRELL, R D

    2002-07-16T23:59:59.000Z

    The 200 Area Interim Storage Area (200 Area ISA) at the Hanford Site provides for the interim storage of non-defense reactor spent nuclear fuel (SNF) housed in aboveground dry cask storage systems. The 200 Area ISA is a relatively simple facility consisting of a boundary fence with gates, perimeter lighting, and concrete and gravel pads on which to place the dry storage casks. The fence supports safeguards and security and establishes a radiation protection buffer zone. The 200 Area ISA is nominally 200,000 ft{sup 2} and is located west of the Canister Storage Building (CSB). Interim storage at the 200 Area ISA is intended for a period of up to 40 years until the materials are shipped off-site to a disposal facility. This Final Safety Analysis Report (FSAR) does not address removal from storage or shipment from the 200 Area ISA. Three different SNF types contained in three different dry cask storage systems are to be stored at the 200 Area ISA, as follows: (1) Fast Flux Test Facility Fuel--Fifty-three interim storage casks (ISC), each holding a core component container (CCC), will be used to store the Fast Flux Test Facility (FFTF) SNF currently in the 400 Area. (2) Neutron Radiography Facility (NRF) TRIGA'--One Rad-Vault' container will store two DOT-6M3 containers and six NRF TRIGA casks currently stored in the 400 Area. (3) Commercial Light Water Reactor Fuel--Six International Standards Organization (ISO) containers, each holding a NAC-I cask4 with an inner commercial light water reactor (LWR) canister, will be used for commercial LWR SNF from the 300 Area. An aboveground dry cask storage location is necessary for the spent fuel because the current storage facilities are being shut down and deactivated. The spent fuel is being transferred to interim storage because there is no permanent repository storage currently available.

  18. On uniformly subelliptic operators and stochastic area

    E-Print Network [OSTI]

    2008-08-12T23:59:59.000Z

    Nov 27, 2007 ... area, which generalizes previous works of Lyons–Stoica and then ..... ?a;x. B(x0,r) = inf. { t ? 0 : X a;x t. /? B (x0,r). } ,. Pa;x. B(x0,r) (t, ·) = P.

  19. ICME & MGI Big Area Additive Manufacturing

    E-Print Network [OSTI]

    ICME & MGI · Big Area Additive Manufacturing · Neutron Characterization for AM · Materials problems in additive manu- facturing (AM). Additive manufacturing, or three-dimensional (3-D) printing of the world's most advanced neu- tron facilities, the HFIR and SNS, to characterize additive manufactured

  20. Cod. Fisc. 90031700322 AREA Science Park

    E-Print Network [OSTI]

    Cod. Fisc. 90031700322 AREA Science Park Padriciano 99 34149 Trieste, ITALY Tel: +39-040-37571 Fax Trieste and champion of the Trieste Science System Paolo Budinich, co-founder of the Abdus Salam International Centre for Theoretical Physics in Trieste, passed away on 14 November 2013. For over 50 years one

  1. West Central North East Area of Tucson

    E-Print Network [OSTI]

    Hall, Sharon J.

    a, b) in urbanized areas. The Tucson Hummingbird Project (THP) is a citizen-science, reconciliation for migrating ones. Citizen Science and OutreachCitizen Science and Outreach The latter was achieved with citizen scientists via large-scale outreach to the local community. Projects such as the THP can

  2. USACE Small Business Area of Responsibility

    E-Print Network [OSTI]

    US Army Corps of Engineers

    ACE Page 1 USACE Small Business Area of Responsibility OFC CODE STREET CITY ST ZIP TELEPHONE D S N-761-4609 Deputy to PARCs , Office of Small Business Prog, HQ U.S. Army Corps of CESB 60 Forsyth Street RM10M15

  3. Postdoctoral Scholar position Area: Ethical Leadership

    E-Print Network [OSTI]

    de Leon, Alex R.

    Postdoctoral Scholar position Area: Ethical Leadership Duration: 2 Years Start date: Negotiable at the University of Calgary is accepting applications for a Postdoctoral Fellow in Ethical Leadership. Job Description: The Canadian Centre for Advanced Leadership in Business (CCAL), in the Haskayne School

  4. MFR PAPER 1170 Water Surface Area Within

    E-Print Network [OSTI]

    in hectares for each subsubarea within each subarea. Conversion factor Central latllude Stallstlcal hectares the Gulf coa t. especiall y tho e concerning im- pact of energy-related development. METHODS Water surface.-Converslon factors (hectares per planimeter unit) used to convert average planimeter units to area

  5. Geophysical investigations of certain Montana geothermal areas

    SciTech Connect (OSTI)

    Wideman, C.J. (Montana Bureau of Mines and Geology, Butte); Dye, L.; Halvorson, J.; McRae, M.; Ruscetta, C.A.; Foley, D. (eds.)

    1981-05-01T23:59:59.000Z

    Selected hot springs areas of Montana have been investigated by a variety of geophysical techniques. Resistivity, gravity, seismic, and magnetic methods have been applied during investigations near the hot springs. Because the geology is extremely varied at the locations of the investigations, several geophysical techniques have usually been applied at each site.

  6. Central Facilities Area Sewage Lagoon Evaluation

    SciTech Connect (OSTI)

    Mark R. Cole

    2013-12-01T23:59:59.000Z

    The Central Facilities Area (CFA), located in Butte County, Idaho, at the Idaho National Laboratory has an existing wastewater system to collect and treat sanitary wastewater and non-contact cooling water from the facility. The existing treatment facility consists of three cells: Cell #1 has a surface area of 1.7 acres, Cell #2 has a surface area of 10.3 acres, and Cell #3 has a surface area of 0.5 acres. If flows exceed the evaporative capacity of the cells, wastewater is discharged to a 73.5-acre land application site that uses a center-pivot irrigation sprinkler system. As flows at CFA have decreased in recent years, the amount of wastewater discharged to the land application site has decreased from 13.64 million gallons in 2004 to no discharge in 2012 and 2013. In addition to the decreasing need for land application, approximately 7.7 MG of supplemental water was added to the system in 2013 to maintain a water level and prevent the clay soil liners in the cells from drying out and “cracking.” The Idaho National Laboratory is concerned that the sewage lagoons and land application site may be oversized for current and future flows. A further concern is the sustainability of the large volumes of supplemental water that are added to the system according to current operational practices. Therefore, this study was initiated to evaluate the system capacity, operational practices, and potential improvement alternatives, as warranted.

  7. MAGNITUDE OF IMPERVIOUS SURFACES IN URBAN AREAS

    E-Print Network [OSTI]

    Pitt, Robert E.

    Quality Database NURP Nationwide Urban Runoff Program P Phosphorus PLSS Public Land Survey System QA Chemical Oxygen Demand DCIA Directly Connected Impervious Areas DOQQ Digital Ortho Quarter Quads EIA Total Suspended Solids USDA Unite States Department of Agriculture USGS Unites States Geological Survey

  8. ARLINGTON/DEFOREST AREA CATERING INFORMATION

    E-Print Network [OSTI]

    Balser, Teri C.

    ARLINGTON/DEFOREST AREA CATERING INFORMATION Rude's Family Catering DeForest, WI 608-846-5959 (Debbie) Roadside Grill DeForest, WI 608-846-1874 (Pete) Piggly Wiggly Poynette, WI 608-635-2647 (Heidi INFORMATION Holiday Inn Express 7184 Morrisonville Rd. DeForest, WI 53532 608-846-8686 toll free 800-HOLIDAY

  9. 100-B area technical baseline report

    SciTech Connect (OSTI)

    Carpenter, R.W.

    1994-09-01T23:59:59.000Z

    This document supports the environmental remediation effort of the 100-B Area by providing remediation planners with key data that characterize the 100-B and 100-C Reactor sites. It provides operational histories of the 100-B and 100-C Reactors and each of their associated liquid and solid waste sites.

  10. n. Area Dipartimento Proponente Titolo Finanziamento

    E-Print Network [OSTI]

    Guidoni, Leonardo

    Breuil (Monte Circeo) e di altri siti del Lazio meridionale, quale possibile area rifugio nel Pleistocene'enteropatogeno Shigella flexneri. 5.000,00 si 13 A Dip. Biologia e biotecnologie BIAGIONI Stefano Biochemical biotecnologie CACCHIONE Stefano Functional characterization of Drosophila telomeres 5.000,00 17 A Dip. Biologia

  11. Nutrient Management Examination Competency Areas Individual Specialists

    E-Print Network [OSTI]

    Guiltinan, Mark

    Management: Soil Health 2. Understand how to use soil survey data and maps in nutrient management planning and experience relating to nutrient management planning and plan development. These competency areas function Management Act (Act 38): Who Is Affected? 3. Know the required components of a nutrient management plan

  12. Determination of leakage areas in nuclear piping

    SciTech Connect (OSTI)

    Keim, E. [Siemens/KWU, Erlangen (Germany)

    1997-04-01T23:59:59.000Z

    For the design and operation of nuclear power plants the Leak-Before-Break (LBB) behavior of a piping component has to be shown. This means that the length of a crack resulting in a leak is smaller than the critical crack length and that the leak is safely detectable by a suitable monitoring system. The LBB-concept of Siemens/KWU is based on computer codes for the evaluation of critical crack lengths, crack openings, leakage areas and leakage rates, developed by Siemens/KWU. In the experience with the leak rate program is described while this paper deals with the computation of crack openings and leakage areas of longitudinal and circumferential cracks by means of fracture mechanics. The leakage areas are determined by the integration of the crack openings along the crack front, considering plasticity and geometrical effects. They are evaluated with respect to minimum values for the design of leak detection systems, and maximum values for controlling jet and reaction forces. By means of fracture mechanics LBB for subcritical cracks has to be shown and the calculation of leakage areas is the basis for quantitatively determining the discharge rate of leaking subcritical through-wall cracks. The analytical approach and its validation will be presented for two examples of complex structures. The first one is a pipe branch containing a circumferential crack and the second one is a pipe bend with a longitudinal crack.

  13. Campus Area Housing RENTAL RESOURCE GUIDE

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    , faculty, staff, communi- ty members, and area property owners and management companies. For more they live, have access to the academic and personal support programs and services offered by UW owned properties that participate in PHC. PHC property owners and managers provide enhanced services

  14. Turkish Trailblazer: Boosting Rural Areas through Business

    E-Print Network [OSTI]

    Sheldon, Nathan D.

    Çokgezen Reviewed by · Aline Kraemer Sector · Consumer Products Enterprise Class · Large Domestic Company her company and the economic and social welfare of rural areas of Turkey. To achieve success, Ms production units in impoverished parts of Turkey in six years. Hey Textile's investment has improved

  15. Navasota river crossings in a selected area

    E-Print Network [OSTI]

    Andrews, George Thomas

    1994-01-01T23:59:59.000Z

    disappears with the passing of each generation of the population. The need for study in areas of historical and cultural information is primary. This is a study of crossings on the Navasota River between Brazos County, Texas and the adjacent counties...

  16. Areas of Specialization: 2014 Page 1 B.S. Degree in Electrical Engineering Areas of Specialization

    E-Print Network [OSTI]

    Piao, Daqing

    Areas of Specialization: 2014 Page 1 B.S. Degree in Electrical Engineering Areas of Specialization and B.S. Degree in Computer Engineering Requirements for Degree Plans School of Electrical and Computer This document provides enrollment guidance for all students in the School of Electrical and Computer Engineering

  17. Preliminary investigation Area 12 fleet operations steam cleaning discharge area Nevada Test Site

    SciTech Connect (OSTI)

    NONE

    1996-07-01T23:59:59.000Z

    This report documents the characterization activities and findings of a former steam cleaning discharge area at the Nevada Test Site. The former steam cleaning site is located in Area 12 east of Fleet Operations Building 12-16. The characterization project was completed as a required condition of the ``Temporary Water Pollution Control Permit for the Discharge From Fleet Operations Steam Cleaning Facility`` issued by the Nevada Division of Environmental Protection. The project objective was to collect shallow soil samples in eight locations in the former surface discharge area. Based upon field observations, twelve locations were sampled on September 6, 1995 to better define the area of potential impact. Samples were collected from the surface to a depth of approximately 0.3 meters (one foot) below land surface. Discoloration of the surface soil was observed in the area of the discharge pipe and in localized areas in the natural drainage channel. The discoloration appeared to be consistent with the topographically low areas of the site. Hydrocarbon odors were noted in the areas of discoloration only. Samples collected were analyzed for bulk asbestos, Toxicity Characteristic Leaching Procedure (TCLP) metals, total petroleum hydrocarbons (TPHs), volatile organic compounds (VOCs), semi-volatile organic compounds (Semi-VOCs), and gamma scan.

  18. 100 Area and 300 Area Component of the RCBRA Fall 2005 Data Compilation

    SciTech Connect (OSTI)

    J.M. Queen

    2006-05-30T23:59:59.000Z

    The purpose of this report is to provide a brief description of the sampling approaches, a description of the samples collected, and the results for the Fall 2005 sampling event. This report presents the methods and results of the work to support the 100 Area and 300 Area Component of the River Corridor Baseline Risk Assessment.

  19. Electrohydrodynamically driven large-area liquid ion sources

    DOE Patents [OSTI]

    Pregenzer, Arian L. (Corrales, NM)

    1988-01-01T23:59:59.000Z

    A large-area liquid ion source comprises means for generating, over a large area of the surface of a liquid, an electric field of a strength sufficient to induce emission of ions from a large area of said liquid. Large areas in this context are those distinct from emitting areas in unidimensional emitters.

  20. Assessment of Offshore Wind Energy Leasing Areas for the BOEM New Jersey Wind Energy Area

    SciTech Connect (OSTI)

    Musial, W.; Elliott, D.; Fields, J.; Parker, Z.; Scott, G.; Draxl, C.

    2013-10-01T23:59:59.000Z

    The National Renewable Energy Laboratory (NREL), under an interagency agreement with the U.S. Department of the Interior's Bureau of Ocean Energy Management (BOEM), is providing technical assistance to identify and delineate leasing areas for offshore wind energy development within the Atlantic Coast Wind Energy Areas (WEAs) established by BOEM. This report focuses on NREL's development and evaluation of the delineations for the New Jersey (NJ) WEA. The overarching objective of this study is to develop a logical process by which the New Jersey WEA can be subdivided into non-overlapping leasing areas for BOEM's use in developing an auction process in a renewable energy lease sale. NREL identified a selection of leasing areas and proposed delineation boundaries within the established NJ WEA. The primary output of the interagency agreement is this report, which documents the methodology, including key variables and assumptions, by which the leasing areas were identified and delineated.

  1. Assessment of Offshore Wind Energy Leasing Areas for the BOEM Massachusetts Wind Energy Area

    SciTech Connect (OSTI)

    Musial, W.; Parker, Z.; Fields, M.; Scott, G.; Elliott, D.; Draxl, C.

    2013-12-01T23:59:59.000Z

    The U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL), under an interagency agreement with the Bureau of Ocean Energy Management (BOEM), is providing technical assistance to identify and delineate leasing areas for offshore wind energy development within the Atlantic Coast Wind Energy Areas (WEAs) established by BOEM. This report focuses on NREL's development of three delineated leasing area options for the Massachusetts (MA) WEA and the technical evaluation of these leasing areas. The overarching objective of this study is to develop a logical process by which the MA WEA can be subdivided into non-overlapping leasing areas for BOEM's use in developing an auction process in a renewable energy lease sale. NREL worked with BOEM to identify an appropriate number of leasing areas and proposed three delineation alternatives within the MA WEA based on the boundaries announced in May 2012. A primary output of the interagency agreement is this report, which documents the methodology, including key variables and assumptions, by which the leasing areas were identified and delineated.

  2. Nevada Test 1999 Waste Management Monitoring Report, Area 3 and Area 5 radioactive waste management sites

    SciTech Connect (OSTI)

    Yvonne Townsend

    2000-05-01T23:59:59.000Z

    Environmental monitoring data were collected at and around the Area 3 and Area 5 Radioactive Waste Management Sites (RWMSs) at the Nevada Test Site (NTS). These monitoring data include radiation exposure, air, groundwater, meteorology, vadose zone, and biota data. Although some of these media (radiation exposure, air, and groundwater) are reported in detail in other Bechtel Nevada reports (Annual Site Environmental Report [ASER], the National Emissions Standard for Hazardous Air Pollutants [NESHAP] report, and the Annual Groundwater Monitoring Report), they are also summarized in this report to provide an overall evaluation of RWMS performance and environmental compliance. Direct radiation monitoring data indicate that exposure at and around the RWMSs is not above background levels. Air monitoring data indicate that tritium concentrations are slightly above background levels, whereas radon concentrations are not above background levels. Groundwater monitoring data indicate that the groundwater in the alluvial aquifer beneath the Area 5 RWMS has not been affected by the facility. Meteorology data indicate that 1999 was a dry year: rainfall totaled 3.9 inches at the Area 3 RWMS (61 percent of average) and 3.8 inches at the Area 5 RWMS (75 percent of average). Vadose zone monitoring data indicate that 1999 rainfall infiltrated less than one foot before being returned to the atmosphere by evaporation. Soil-gas tritium data indicate very slow migration, and tritium concentrations in biota were insignificant. All 1999 monitoring data indicate that the Area 3 and Area 5 RWMSs are performing as expected at isolating buried waste.

  3. Superfund record of decision (EPA Region 2): Federal Aviation Administration Technical Center (Area 29 - Fire Training and Area K - storage area near area 29), Altantic County, Atlantic City International Airport, NJ, September 20, 1996

    SciTech Connect (OSTI)

    NONE

    1996-10-01T23:59:59.000Z

    This decision document presents the selected remedial action for Area 29, the Fire Training Area and Area K, a former drum and tank storage area located adjacent to Area 29 at the FAA Technical Center, Atlantic City International Airport, New Jersey. The selected remedy for Areas 29 and K address the principal threat by controlling the migration of and treating dissolved chemicals in ground water. Contaminated soils will be excavated and disposed of offsite.

  4. Kirkland gets license in hot Philippines area

    SciTech Connect (OSTI)

    Kirkland, A.S.

    1992-08-03T23:59:59.000Z

    This paper reports that Kirkland As, Oslo, has received a geophysical survey and exploration contract (GSEC) in a sizzling exploration and development theater off the Philippines. The license covers about 6,000 sq miles of undisputed waters, with depths mostly less than 300 ft, and lies in the Reed Bank area off Northwest Palawan Island, where several major oil and gas strikes have been made recently. Kirkland has 1 year in which to carry out its seismic work commitment. The terms of the GSEC then give an option to drill one well in a 6 month period. Once the results have been analyzed, the company can either drill another well or enter into a service contract for the license. Kirkland has a 65% share in the license, with the remainder split between Philippine companies Philodrill Corp., Beguet Mining Corp. subsidiary Petrofields, and Seafront Resources Corp. The Philippines is one of Kirkland's main areas of activity, the Kirkland Commercial Manager Ralph Baxter.

  5. Linear tailored gain broad area semiconductor lasers

    SciTech Connect (OSTI)

    Lindsey, C.P.; Mehuys, D.; Yariv, A.

    1987-06-01T23:59:59.000Z

    Tailored gain semiconductor lasers capable of high-power operation with single-lobed, nearly diffraction limited beamwidths only a few degrees wide have been demonstrated in proton implanted chirped arrays and ''halftone'' broad area lasers. The authors analyze lasers with a linear gain gradient, and obtain analytic approximations for their unsaturated optical eigenmodes. Unlike a uniform array, the fundamental mode of a linear tailored gain laser is the mode at threshold. Mode discrimination may be controlled by lasing the spatial gain gradient. All modes of asymmetric tailored gain waveguides have single-lobed far-field patterns offset from 0/sup 0/. Finally, they utilize tailored gain broad area lasers to make a measurement of the antiguiding parameter, and find b = 2.5 +- 0.5, in agreement with previous results.

  6. Mixed waste characterization, treatment & disposal focus area

    SciTech Connect (OSTI)

    NONE

    1996-08-01T23:59:59.000Z

    The mission of the Mixed Waste Characterization, Treatment, and Disposal Focus Area (referred to as the Mixed Waste Focus Area or MWFA) is to provide treatment systems capable of treating DOE`s mixed waste in partnership with users, and with continual participation of stakeholders, tribal governments, and regulators. The MWFA deals with the problem of eliminating mixed waste from current and future storage in the DOE complex. Mixed waste is waste that contains both hazardous chemical components, subject to the requirements of the Resource Conservation and Recovery Act (RCRA), and radioactive components, subject to the requirements of the Atomic Energy Act. The radioactive components include transuranic (TRU) and low-level waste (LLW). TRU waste primarily comes from the reprocessing of spent fuel and the use of plutonium in the fabrication of nuclear weapons. LLW includes radioactive waste other than uranium mill tailings, TRU, and high-level waste, including spent fuel.

  7. The Downtown Area of Jonestown, Texas.

    E-Print Network [OSTI]

    Booth, Geoffrey; Molina, Daniel; Santos, Alexander; Garcia, Laura; Garcia, Sarah; Olivarez, Cristopher; Wolff, Alec; Richarson, Jennifer; Romero, Megan; Beckett, Katherine; Strom, Robert; Cheek, Joseph; Davis, Zachary; Guerra, Daniel; McIntyre, Scott; Bishop, William; Hoff, Austin; Hernandez, Alex; Stewart, Sean; Kulka, William; Whitis, Dillon; Couvillion, Sarah; English, Garrett; Vasylyeva, Anastasiya; Allen, Jacob; Jorgenson, Davis; Kaska, Michael; Terrazas, Nathan; Barnete, Beau; Garcia, Karina; Cruz, Sarah; Harwell, Ethan

    2014-10-03T23:59:59.000Z

    for walking and running Research (including source): No name trail was about half a mile long and Jones Brothers Park is a huge 32 acre park. Source- (Personal experience and City of Jonestown website) Analysis: On my visit to Jonestown we got to walk... of public parks and exercise areas Research (including source): Jones Brother Park, Firemen’s Park, Veterans Park, No name trial- Source (Marilee Pfannstiel, City of Jonestown Website) Analysis: All three parks are great for community gatherings...

  8. Landfill stabilization focus area: Technology summary

    SciTech Connect (OSTI)

    NONE

    1995-06-01T23:59:59.000Z

    Landfills within the DOE Complex as of 1990 are estimated to contain 3 million cubic meters of buried waste. The DOE facilities where the waste is predominantly located are at Hanford, the Savannah River Site (SRS), the Idaho National Engineering Laboratory (INEL), the Los Alamos National Laboratory (LANL), the Oak Ridge Reservation (ORR), the Nevada Test Site (NTS), and the Rocky Flats Plant (RFP). Landfills include buried waste, whether on pads or in trenches, sumps, ponds, pits, cribs, heaps and piles, auger holes, caissons, and sanitary landfills. Approximately half of all DOE buried waste was disposed of before 1970. Disposal regulations at that time permitted the commingling of various types of waste (i.e., transuranic, low-level radioactive, hazardous). As a result, much of the buried waste throughout the DOE Complex is presently believed to be contaminated with both hazardous and radioactive materials. DOE buried waste typically includes transuranic-contaminated radioactive waste (TRU), low-level radioactive waste (LLW), hazardous waste per 40 CFR 26 1, greater-than-class-C waste per CFR 61 55 (GTCC), mixed TRU waste, and mixed LLW. The mission of the Landfill Stabilization Focus Area is to develop, demonstrate, and deliver safer,more cost-effective and efficient technologies which satisfy DOE site needs for the remediation and management of landfills. The LSFA is structured into five technology areas to meet the landfill remediation and management needs across the DOE complex. These technology areas are: assessment, retrieval, treatment, containment, and stabilization. Technical tasks in each of these areas are reviewed.

  9. Functional Area Criteria & Review Approach Documents

    Broader source: Energy.gov [DOE]

    CRADS provided on this page are provided as examples of functional area Objectives and Criteria used to evaluate how requirements are meet. They are only examples and should not be utilized as is. In accordance with DOE Standard 3006-2010, CRADs should be developed by team members to reflect the specifics of the proposed review (i.e., breadth and depth) as defined in the approved Plan of Action.

  10. North Area Right-of-Way Maintenance Project

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

    North Area Right-of-Way Maintenance Project North Area Right-of-Way Maintenance Project Western FONSI (PDF - 487 KB) Final Environmental Assessment (PDF - 4200 KB) Environmental...

  11. Modeling-Computer Simulations At Fenton Hill HDR Geothermal Area...

    Open Energy Info (EERE)

    Modeling-Computer Simulations At Fenton Hill HDR Geothermal Area (Goff & Decker, 1983) Exploration Activity Details Location Fenton Hill HDR Geothermal Area Exploration Technique...

  12. THURSDAY: Deputy Secretary of Energy to Visit Western Area Power...

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

    THURSDAY: Deputy Secretary of Energy to Visit Western Area Power Administration Transmission Substation THURSDAY: Deputy Secretary of Energy to Visit Western Area Power...

  13. Wind Forecast Improvement Project Southern Study Area Final Report...

    Office of Environmental Management (EM)

    Project Southern Study Area Final Report Wind Forecast Improvement Project Southern Study Area Final Report.pdf More Documents & Publications Computational Advances in Applied...

  14. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Home Exploration Activity: Geothermal Literature Review At Lightning Dock Geothermal Area (Lienau, 1990) Exploration Activity Details Location Lightning Dock Geothermal Area...

  15. Thermal Gradient Holes At Blue Mountain Geothermal Area (Fairbank...

    Open Energy Info (EERE)

    Blue Mountain Geothermal Area (Fairbank & Niggemann, 2004) Exploration Activity Details Location Blue Mountain Geothermal Area Exploration Technique Thermal Gradient Holes Activity...

  16. area linares precordillera: Topics by E-print Network

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

    image through flexible fiber bundle One set of optics per viewport 11 12; tight environment high radiation area non-serviceable area passive components...

  17. azilal moroccan area: Topics by E-print Network

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

    image through flexible fiber bundle One set of optics per viewport 11 12; tight environment high radiation area non-serviceable area passive components...

  18. areas naturais protegidas: Topics by E-print Network

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

    image through flexible fiber bundle One set of optics per viewport 11 12; tight environment high radiation area non-serviceable area passive components...

  19. area strontium-90 treatability: Topics by E-print Network

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

    image through flexible fiber bundle One set of optics per viewport 11 12; tight environment high radiation area non-serviceable area passive components...

  20. area finnish lapland: Topics by E-print Network

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

    image through flexible fiber bundle One set of optics per viewport 11 12; tight environment high radiation area non-serviceable area passive components...

  1. area mercantour massif: Topics by E-print Network

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

    image through flexible fiber bundle One set of optics per viewport 11 12; tight environment high radiation area non-serviceable area passive components...

  2. Hyperspectral Imaging At Fish Lake Valley Area (Littlefield ...

    Open Energy Info (EERE)

    Fish Lake Valley Area (Littlefield & Calvin, 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Hyperspectral Imaging At Fish Lake Valley Area...

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

    Office of Environmental Management (EM)

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

  4. area skamania county: Topics by E-print Network

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

    are subject to debris flowsBurned Area Emergency Response Report July 8, 2010 Schultz Fire Coconino National Forest 12;Executive Summary Burned Area Report Cost Benefit...

  5. Petrography Analysis At Kilauea East Rift Geothermal Area (Quane...

    Open Energy Info (EERE)

    Petrography Analysis At Kilauea East Rift Geothermal Area (Quane, Et Al., 2003) Exploration Activity Details Location Kilauea East Rift Geothermal Area Exploration Technique...

  6. Surface Gas Sampling At Fenton Hill HDR Geothermal Area (Grigsby...

    Open Energy Info (EERE)

    Area (Grigsby, Et Al., 1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Surface Gas Sampling At Fenton Hill HDR Geothermal Area...

  7. areas vulnerabilities impacts: Topics by E-print Network

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

    on residential electricity consumption for the nine San Francisco Bay Area counties 22 Seismic vulnerability analysis of moderate seismicity areas using in situ experimental...

  8. Direct-Current Resistivity Survey At Blue Mountain Area (Fairbank...

    Open Energy Info (EERE)

    Blue Mountain Area (Fairbank Engineering Ltd, 2005) Exploration Activity Details Location Blue Mountain Area Exploration Technique Direct-Current Resistivity Survey Activity Date...

  9. Slim Holes At Blue Mountain Geothermal Area (Fairbank Engineering...

    Open Energy Info (EERE)

    Home Exploration Activity: Slim Holes At Blue Mountain Geothermal Area (Fairbank Engineering Ltd, 2003) Exploration Activity Details Location Blue Mountain Geothermal Area...

  10. Aerial Photography At Blue Mountain Geothermal Area (Fairbank...

    Open Energy Info (EERE)

    Exploration Activity: Aerial Photography At Blue Mountain Geothermal Area (Fairbank Engineering Ltd, 2003) Exploration Activity Details Location Blue Mountain Geothermal Area...

  11. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Lightning Dock Geothermal Area (Smith, 1978) Exploration Activity Details Location Lightning Dock Geothermal Area Exploration Technique Geothermal Literature Review Activity Date...

  12. Exploratory Well At Long Valley Caldera Geothermal Area (Smith...

    Open Energy Info (EERE)

    Home Exploration Activity: Exploratory Well At Long Valley Caldera Geothermal Area (Smith & Rex, 1977) Exploration Activity Details Location Long Valley Caldera Geothermal Area...

  13. Development Wells At Salt Wells Area (Nevada Bureau of Mines...

    Open Energy Info (EERE)

    Salt Wells Area (Nevada Bureau of Mines and Geology, 2009) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Development Wells At Salt Wells Area...

  14. Economic Potential of CHP in Detroit Edison Service Area: The...

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

    Economic Potential of CHP in Detroit Edison Service Area: The Customer Perspective, June 2003 Economic Potential of CHP in Detroit Edison Service Area: The Customer Perspective,...

  15. Static Temperature Survey At Long Valley Caldera Geothermal Area...

    Open Energy Info (EERE)

    Caldera Geothermal Area (Farrar, Et Al., 2003) Exploration Activity Details Location Long Valley Caldera Geothermal Area Exploration Technique Static Temperature Survey Activity...

  16. Conceptual Model At Long Valley Caldera Geothermal Area (Farrar...

    Open Energy Info (EERE)

    Conceptual Model At Long Valley Caldera Geothermal Area (Farrar, Et Al., 2003) Exploration Activity Details Location Long Valley Caldera Geothermal Area Exploration Technique...

  17. Thermal Gradient Holes At Long Valley Caldera Geothermal Area...

    Open Energy Info (EERE)

    Geothermal Area (Farrar, Et Al., 2003) Exploration Activity Details Location Long Valley Caldera Geothermal Area Exploration Technique Thermal Gradient Holes Activity Date 1998 -...

  18. Energy Department Recognizes San Antonio Area Partners for Advancing...

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

    San Antonio Area Partners for Advancing Energy Efficiency Energy Department Recognizes San Antonio Area Partners for Advancing Energy Efficiency April 15, 2015 - 10:36am Addthis...

  19. Isotopic Analysis At Long Valley Caldera Geothermal Area (Evans...

    Open Energy Info (EERE)

    Isotopic Analysis At Long Valley Caldera Geothermal Area (Evans, Et Al., 2002) Exploration Activity Details Location Long Valley Caldera Geothermal Area Exploration Technique...

  20. area environmental monitoring: Topics by E-print Network

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

    valley of Santa Barbara County, California, with agricultural fields located in the area between Lompoc and the coast. As with most California coastal valleys, the area is cool...

  1. Geographic Information System At Dixie Valley Geothermal Area...

    Open Energy Info (EERE)

    Dixie Valley Geothermal Area (Nash & D., 1997) Exploration Activity Details Location Dixie Valley Geothermal Area Exploration Technique Geographic Information System Activity Date...

  2. Water-Gas Samples At Valles Caldera - Redondo Geothermal Area...

    Open Energy Info (EERE)

    Water-Gas Samples At Valles Caldera - Redondo Geothermal Area (Janik & Goff, 2002) Exploration Activity Details Location Valles Caldera - Redondo Geothermal Area Exploration...

  3. Thermal Gradient Holes At Lightning Dock Geothermal Area (Cunniff...

    Open Energy Info (EERE)

    Thermal Gradient Holes At Lightning Dock Geothermal Area (Cunniff & Bowers, 2005) Exploration Activity Details Location Lightning Dock Geothermal Area Exploration Technique Thermal...

  4. Geothermal Resource Area 6: Lander and Eureka Counties. Area development plan

    SciTech Connect (OSTI)

    Robinson, S.; Pugsley, M.

    1981-01-01T23:59:59.000Z

    Geothermal Resource Area 6 includes Lander and Eureka Counties. There are several different geothermal resources ranging in temperature from 70/sup 0/F to in excess of 400/sup 0/F within this two county area. Eleven of these resources are considered major and have been selected for evaluation in this area development plan. The various potential uses of the energy found at each of the 11 resource sites were determined after evaluating the study area's physical characteristics, land ownership and land use patterns, existing population and projected growth rates, and transportation facilities. These were then compared with the site specific resource characteristics. The uses considered were divided into five main categories: electrical generation, space heating, recreation, industrial process heat, and agriculture. Within two of these categories certain subdivisions were considered separately. The findings about each of the geothermal sites considered are summarized.

  5. Geothermal resource area 6: Lander and Eureka Counties. Area development plan

    SciTech Connect (OSTI)

    Pugsley, M.

    1981-01-01T23:59:59.000Z

    Geothermal Resource Area 6 includes Lander and Eureka Counties. There are several different geothermal resources ranging in temperature from 70/sup 0/F to in excess of 400/sup 0/F within this two country area. Eleven of these resources are considered major and have been selected for evaluation in this Area Development Plan. The various potential uses of the energy found at each of the 11 resource sites were determined after evaluating the study area's physical characteristics, land ownership and land use patterns, existing population and projected growth rates, and transportation facilities. These were then compared with the site specific resource characteristics. The uses considered were divided into five main categories: electrical generation, space heating, recreation, industrial process heat, and agriculture. Within two of these categories certain subdivisions were considered separately. The findings about each of the 11 geothermal sites considered are summarized.

  6. Analysis of Offshore Wind Energy Leasing Areas for the Rhode Island/Massachusetts Wind Energy Area

    SciTech Connect (OSTI)

    Musial, W.; Elliott, D.; Fields, J.; Parker, Z.; Scott, G.

    2013-04-01T23:59:59.000Z

    The National Renewable Energy Laboratory (NREL), under an interagency agreement with the Bureau of Ocean Energy Management (BOEM), is providing technical assistance to BOEM on the identification and delineation of offshore leasing areas for offshore wind energy development within the Atlantic Coast Wind Energy Areas (WEAs) established by BOEM in 2012. This report focuses on NREL's evaluation of BOEM's Rhode Island/Massachusetts (RIMA) WEA leasing areas. The objective of the NREL evaluation was to assess the proposed delineation of the two leasing areas and determine if the division is reasonable and technically sound. Additionally, the evaluation aimed to identify any deficiencies in the delineation. As part of the review, NREL performed the following tasks: 1. Performed a limited review of relevant literature and RIMA call nominations. 2. Executed a quantitative analysis and comparison of the two proposed leasing areas 3. Conducted interviews with University of Rhode Island (URI) staff involved with the URI Special Area Management Plan (SAMP) 4. Prepared this draft report summarizing the key findings.

  7. REMOTE AREA RADIATION MONITORING (RARM) ALTERNATIVES ANALYSIS

    SciTech Connect (OSTI)

    NELSON RL

    2008-07-18T23:59:59.000Z

    The Remote Area Radiation Monitoring (RARM) system will be used to provide real-time radiation monitoring information to the operations personnel during tank retrieval and transfer operations. The primary focus of the system is to detect potential anomalous (waste leaks) or transient radiological conditions. This system will provide mobile, real-time radiological monitoring, data logging, and status at pre-selected strategic points along the waste transfer route during tank retrieval operations. The system will provide early detection and response capabilities for the Retrieval and Closure Operations organization and Radiological Control personnel.

  8. Expanding the Area of Gravitational Entropy

    E-Print Network [OSTI]

    R. B. Mann

    2002-11-12T23:59:59.000Z

    I describe how gravitational entropy is intimately connected with the concept of gravitational heat, expressed as the difference between the total and free energies of a given gravitational system. From this perspective one can compute these thermodyanmic quantities in settings that go considerably beyond Bekenstein's original insight that the area of a black hole event horizon can be identified with thermodynamic entropy. The settings include the outsides of cosmological horizons and spacetimes with NUT charge. However the interpretation of gravitational entropy in these broader contexts remains to be understood.

  9. Area C borrow Site Habitat Assessment

    SciTech Connect (OSTI)

    Sackschewsky, Michael R.; Downs, Janelle L.

    2009-12-04T23:59:59.000Z

    A habitat quality assessment was performed within selected portions of the proposed Area C Borrow Source. The previously identified Bitterbrush / Indian ricegrass stabilized dune element occurrence was determined to be better described as a sagebrush /needle-and-thread grass element occurrence of fair to good quality. A new habitat polygon is suggested adjacent to this element occurrence, which would also be sagebrush/needle-and-thread grass, but of poor quality. The proposed site of initial borrow site development was found to be a very low quality community dominated by cheatgrass.

  10. 100-N Area underground storage tank closures

    SciTech Connect (OSTI)

    Rowley, C.A.

    1993-08-01T23:59:59.000Z

    This report describes the removal/characterization actions concerning underground storage tanks (UST) at the 100-N Area. Included are 105-N-LFT, 182-N-1-DT, 182-N-2-DT, 182-N-3-DT, 100-N-SS-27, and 100-N-SS-28. The text of this report gives a summary of remedial activities. In addition, correspondence relating to UST closures can be found in Appendix B. Appendix C contains copies of Unusual Occurrence Reports, and validated sampling data results comprise Appendix D.

  11. Larderello Geothermal Area | 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 I Geothermal Pwer Plant Jump to:Landowners and Wind Energy Development Jump to:WaveLarderello Geothermal Area

  12. Little Valley Geothermal Area | 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 I Geothermal Pwer Plant Jump to:Landowners and WindLightingLinthicum,Little Valley Geothermal Area (Redirected

  13. Akun Strait Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlinPapersWindeySanta2004)Airway Heights,Akins,Akun Strait Geothermal Area

  14. LED Outdoor Area Lighting Fact Sheet

    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't YourTransport(FactDepartment ofLetter Report:40PM toLED Lighting Facts LED LightingOutdoor Area

  15. Western Area Power Administration | 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 IndustriesTown ofNationwideWTED JumpHills, NewWestbrook, Minnesota: EnergyWestcreek,Area Power

  16. Salavatli Geothermal Area | 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 Ltd Jump to:RoscommonSBY SolutionsChange ResilienceSalavatli Geothermal Area

  17. Salton Sea Geothermal Area | 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 Ltd Jump to:RoscommonSBYSalton Sea Geothermal Area Jump to: navigation, search

  18. Fallon Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazelPennsylvania: EnergyExolisFairway, Kansas: EnergyFallon Geothermal Area

  19. Wilbur Springs Geothermal Area | 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:Ezfeedflag JumpID-fTri GlobalJumpGoogleAreaMapUtilityRateEntryHelperVideoVimeoWilbur Springs

  20. Ahuachapan Geothermal Area | 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:Ezfeedflag JumpID-fTriWildcat 1AMEE JumpAeroWindcapital GmbHAhuachapan Geothermal Area Jump

  1. Property:GeothermalArea | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit with form History Facebook icon Twitter icon » Property:GeothermalArea Jump to:

  2. Clean Cities: Chicago Area Clean Cities coalition

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041clothAdvanced Materials Advanced. C o w l i t z CPlasma0 12 BONNEVILLECoast CleanChicago Area Clean

  3. Kilauea Summit Geothermal Area | 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.pdfGetecGtelInteriasIowa:Washington: EnergyFacilityKilauea Summit Geothermal Area

  4. Yamagawa Geothermal Area | 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 IndustriesTownDells, Wisconsin: EnergyWyandanch, New York:StateXiningYamagawa Geothermal Area

  5. Patuha Geothermal Area | 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 I Geothermal Pwer PlantMunhall,Missouri:EnergyOssian,Parle Biscuits Pvt LtdPatriotPatuha Geothermal Area Jump

  6. Moana Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRose BendMiasole IncMinuteman WindMoana Geothermal Area Jump to:

  7. Stillwater Geothermal Area | 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,SoutheastSt.Steep GradientWashington:Stillwater Geothermal Area

  8. Svartsengi Geothermal Area | 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 PvtStratosolar Jump to:Holdings Co LtdLLC Place:Svartsengi Geothermal Area Jump to:

  9. Emmons Lake Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazel Crest,Energy InformationEmily, Minnesota:Emmons Lake Geothermal Area

  10. North Brawley Geothermal Area | 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 I Geothermal Pwer PlantMunhall,Missouri: Energy Resources JumpOklahoma:North Brawley Geothermal Area Jump to:

  11. Oita Geothermal Area | 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 I Geothermal Pwer PlantMunhall,Missouri: EnergyExcellenceOffice of State LandsOhio: EnergyOita Geothermal Area

  12. Okeanskaya Geothermal Area | 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 I Geothermal Pwer PlantMunhall,Missouri: EnergyExcellenceOffice of State LandsOhio:Okeanskaya Geothermal Area

  13. Maibarara Geothermal Area | 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 I Geothermal Pwer Plant Jump to:LandownersLuther,Jemez Pueblo Area (DOE GTP)Texas:MSML JumpMahopac,

  14. Manley Geothermal Area | 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 I Geothermal Pwer Plant Jump to:LandownersLuther,Jemez Pueblo Area6612134°,Manistee County,ManitouManley

  15. Teels Marsh Geothermal Area | 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 PvtStratosolar Jump to:HoldingsTechint Spa JumpTVC JumpTeels Marsh Geothermal Area

  16. Tokamachi Geothermal Area | 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 PvtStratosolarTharaldsonInformation 61Tokamachi Geothermal Area Jump to:

  17. Medicine Lake Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

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

  18. Southern CA Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit with formSoutheastern IL Elec Coop, Inc Jump to: navigation, searchCA Area Jump

  19. Aqua Quieta Geothermal Area | 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:Ezfeedflag JumpID-fTriWildcatAntrim County,Delhi (NCT), IndiaOpen EnergyQuieta Geothermal Area

  20. Circle Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty EditCalifornia:PowerCER.png El CER esDataset CountryChoosEV JumpCircle Geothermal Area

  1. Mori Geothermal Area | 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 I Geothermal Pwer Plant JumpMarysville,Missoula,MontereyHill, California: Energy ResourcesMori Geothermal Area

  2. Blue Mountain Geothermal Area | 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:EzfeedflagBiomass ConversionsSouthby 2022 |BleckleyMotion Energy Jump to: navigation,Area Jump

  3. Blue Mountain Geothermal Area | 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:EzfeedflagBiomass ConversionsSouthby 2022 |BleckleyMotion Energy Jump to: navigation,Area

  4. AREA USA LLC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDITCaliforniaWeifangwiki Home Jweers'sAIRMaster+APFED-GoodAPIsAREA USA

  5. FY 2000 Deactivation and Decommissioning Focus Area Annual Report

    SciTech Connect (OSTI)

    None

    2001-03-01T23:59:59.000Z

    This document describes activities of the Deactivation and Decommissioning Focus Area for the past year.

  6. NIH POLICY MANUAL 3015 -Admittance of Minors to Hazardous Areas

    E-Print Network [OSTI]

    Bandettini, Peter A.

    NIH POLICY MANUAL 3015 - Admittance of Minors to Hazardous Areas Issuing Office: OD/OM/ORS/DOHS 301 on admittance of minors to hazardous work areas that may contain inherently or potentially hazardous chemicals. Definitions: 1. Hazardous Area ­ Any area that poses an actual or potential risk of illness or injury

  7. Contributed Paper Protected-Area Boundaries as Filters of

    E-Print Network [OSTI]

    Kratochvíl, Lukas

    Contributed Paper Protected-Area Boundaries as Filters of Plant Invasions LLEWELLYN C. FOXCROFT of Pretoria, Pretoria 0002, South Africa Abstract: Human land uses surrounding protected areas provide propagules for colonization of these areas by non-native species, and corridors between protected-area

  8. 2002 Waste Management Monitoring Report Area 3 and Area 5 Radioactive Waste Management Sites

    SciTech Connect (OSTI)

    Y. E. Townsend

    2003-06-01T23:59:59.000Z

    Environmental, subsidence, and meteorological monitoring data were collected at and around the Area 3 and Area 5 Radioactive Waste Management Sites (RWMSs) at the Nevada Test Site (NTS)(refer to Figure 1). These monitoring data include radiation exposure, air, groundwater,meteorology, vadose zone, subsidence, and biota data. Although some of these media (radiation exposure, air, and groundwater) are reported in detail in other Bechtel Nevada (BN) reports (Annual Site Environmental Report [ASER], the National Emissions Standard for Hazardous Air Pollutants [NESHAP] report, and the Annual Groundwater Monitoring Report), they are also summarized in this report to provide an overall evaluation of RWMS performance and environmental compliance. Direct radiation monitoring data indicate that exposure at and around the RWMSs is not above background levels. Air monitoring data indicate that tritium concentrations are slightly above background levels. Groundwater monitoring data indicate that the groundwater in the uppermost aquifer beneath the Area 5 RWMS has not been affected by the facility. Meteorological data indicate that 2002 was a dry year: rainfall totaled 26 mm (1.0 in) at the Area 3 RWMS and 38 mm (1.5 in) at the Area 5 RWMS. Vadose zone monitoring data indicate that 2002 rainfall infiltrated less than 30 cm (1 ft) before being returned to the atmosphere by evaporation. Soil-gas tritium monitoring data indicate slow subsurface migration, and tritium concentrations in biota were lower than in previous years. Special investigations conducted in 2002 included: a comparison between waste cover water contents measured by neutron probe and coring; and a comparison of four methods for measuring radon concentrations in air. All 2002 monitoring data indicate that the Area 3 and Area 5 RWMSs are performing within expectations of the model and parameter assumptions for the facility Performance Assessments (PAs).

  9. Mixed quantum/classical theory for inelastic scattering of asymmetric-top-rotor + atom in the body-fixed reference frame and application to the H{sub 2}O + He system

    SciTech Connect (OSTI)

    Semenov, Alexander [Chemistry Department, Wehr Chemistry Building, Marquette University, Milwaukee, Wisconsin 53201-1881 (United States); PSL Research University, Observatoire de Paris, Sorbonne Universités, UPMC Univ Paris 06, ENS, UCP, CNRS, UMR8112, LERMA, 5 Place Janssen, 92195 Meudon (France); Dubernet, Marie-Lise [PSL Research University, Observatoire de Paris, Sorbonne Universités, UPMC Univ Paris 06, ENS, UCP, CNRS, UMR8112, LERMA, 5 Place Janssen, 92195 Meudon (France); Babikov, Dmitri, E-mail: dmitri.babikov@mu.edu [Chemistry Department, Wehr Chemistry Building, Marquette University, Milwaukee, Wisconsin 53201-1881 (United States)

    2014-09-21T23:59:59.000Z

    The mixed quantum/classical theory (MQCT) for inelastic molecule-atom scattering developed recently [A. Semenov and D. Babikov, J. Chem. Phys. 139, 174108 (2013)] is extended to treat a general case of an asymmetric-top-rotor molecule in the body-fixed reference frame. This complements a similar theory formulated in the space-fixed reference-frame [M. Ivanov, M.-L. Dubernet, and D. Babikov, J. Chem. Phys. 140, 134301 (2014)]. Here, the goal was to develop an approximate computationally affordable treatment of the rotationally inelastic scattering and apply it to H{sub 2}O + He. We found that MQCT is somewhat less accurate at lower scattering energies. For example, below E = 1000 cm{sup ?1} the typical errors in the values of inelastic scattering cross sections are on the order of 10%. However, at higher scattering energies MQCT method appears to be rather accurate. Thus, at scattering energies above 2000 cm{sup ?1} the errors are consistently in the range of 1%–2%, which is basically our convergence criterion with respect to the number of trajectories. At these conditions our MQCT method remains computationally affordable. We found that computational cost of the fully-coupled MQCT calculations scales as n{sup 2}, where n is the number of channels. This is more favorable than the full-quantum inelastic scattering calculations that scale as n{sup 3}. Our conclusion is that for complex systems (heavy collision partners with many internal states) and at higher scattering energies MQCT may offer significant computational advantages.

  10. Turbine airfoil with controlled area cooling arrangement

    DOE Patents [OSTI]

    Liang, George

    2010-04-27T23:59:59.000Z

    A gas turbine airfoil (10) includes a serpentine cooling path (32) with a plurality of channels (34,42,44) fluidly interconnected by a plurality of turns (38,40) for cooling the airfoil wall material. A splitter component (50) is positioned within at least one of the channels to bifurcate the channel into a pressure-side channel (46) passing in between the outer wall (28) and the inner wall (30) of the pressure side (24) and a suction-side channel (48) passing in between the outer wall (28) and the inner wall (30) of the suction side (26) longitudinally downstream of an intermediate height (52). The cross-sectional area of the pressure-side channel (46) and suction-side channel (48) are thereby controlled in spite of an increasing cross-sectional area of the airfoil along its longitudinal length, ensuring a sufficiently high mach number to provide a desired degree of cooling throughout the entire length of the airfoil.

  11. High surface area, high permeability carbon monoliths

    SciTech Connect (OSTI)

    Lagasse, R.R.; Schroeder, J.L. [Sandia National Labs., Albuquerque, NM (United States). Organic Materials Processing Dept.

    1994-12-31T23:59:59.000Z

    The goal of this work is to prepare carbon monoliths having precisely tailored pore size distribution. Prior studies have demonstrated that poly(acrylonitrile) can be processed into a precursor having tailored macropore structure. Since the macropores were preserved during pyrolysis, this synthetic process provided a route to porous carbon having macropores with size =0.1 to 10{mu}m. No micropores of size <2 nm could be detected in the carbon, however, by nitrogen adsorption. In the present work, the authors have processed a different polymer, poly(vinylidene chloride) into a macroporous precursor, Pyrolysis produced carbon monoliths having macropores derived from the polymer precursor as well as extensive microporosity produced during the pyrolysis of the polymer. One of these carbons had BET surface area of 1,050 m{sup 2}/g and about 1.2 cc/g total pore volume, with about 1/3 of the total pore volume in micropores and the remainder in 1{mu}m macropores. No mesopores in the intermediate size range could be detected by nitrogen adsorption. Carbon materials having high surface area as well as micron size pores have potential applications as electrodes for double layer supercapacitors containing liquid electrolyte, or as efficient media for performing chemical separations.

  12. Assessment of Offshore Wind Energy Leasing Areas for the BOEM Maryland Wind Energy Area

    SciTech Connect (OSTI)

    Musial, W.; Elliott, D.; Fields, J.; Parker, Z.; Scott, G.; Draxl, C.

    2013-06-01T23:59:59.000Z

    The National Renewable Energy Laboratory (NREL), under an interagency agreement with the Bureau of Ocean Energy Management (BOEM), is providing technical assistance to identify and delineate leasing areas for offshore wind energy development within the Atlantic Coast Wind Energy Areas (WEAs) established by BOEM. This report focuses on NREL's evaluation of the delineation proposed by the Maryland Energy Administration (MEA) for the Maryland (MD) WEA and two alternative delineations. The objectives of the NREL evaluation were to assess MEA's proposed delineation of the MD WEA, perform independent analysis, and recommend how the MD WEA should be delineated.

  13. Radioactive tank waste remediation focus area

    SciTech Connect (OSTI)

    NONE

    1996-08-01T23:59:59.000Z

    EM`s Office of Science and Technology has established the Tank Focus Area (TFA) to manage and carry out an integrated national program of technology development for tank waste remediation. The TFA is responsible for the development, testing, evaluation, and deployment of remediation technologies within a system architecture to characterize, retrieve, treat, concentrate, and dispose of radioactive waste stored in the underground stabilize and close the tanks. The goal is to provide safe and cost-effective solutions that are acceptable to both the public and regulators. Within the DOE complex, 335 underground storage tanks have been used to process and store radioactive and chemical mixed waste generated from weapon materials production and manufacturing. Collectively, thes tanks hold over 90 million gallons of high-level and low-level radioactive liquid waste in sludge, saltcake, and as supernate and vapor. Very little has been treated and/or disposed or in final form.

  14. L AREA WASTEWATER STORAGE DRUM EVALUATION

    SciTech Connect (OSTI)

    Vormelker, P; Cynthia Foreman, C; Zane Nelson, Z; David Hathcock, D; Dennis Vinson, D

    2007-11-30T23:59:59.000Z

    This report documents the determination of the cause of pressurization that led to bulging deformation of a 55 gallon wastewater drum stored in L-Area. Drum samples were sent to SRNL for evaluation. The interior surface of these samples revealed blistering and holes in the epoxy phenolic drum liner and corrosion of the carbon steel drum. It is suspected that osmotic pressure drove permeation of the water through the epoxy phenolic coating which was weakened from exposure to low pH water. The coating failed at locations throughout the drum interior. Subsequent corrosion of the carbon steel released hydrogen which pressurized the drum causing deformation of the drum lid. Additional samples from other wastewater drums on the same pallet were also evaluated and limited corrosion was visible on the interior surfaces. It is suspected that, with time, the corrosion would have advanced to cause pressurization of these sealed drums.

  15. Home Area Networks and the Smart Grid

    SciTech Connect (OSTI)

    Clements, Samuel L.; Carroll, Thomas E.; Hadley, Mark D.

    2011-04-01T23:59:59.000Z

    With the wide array of home area network (HAN) options being presented as solutions to smart grid challenges for the home, it is time to compare and contrast their strengths and weaknesses. This white paper examines leading and emerging HAN technologies. The emergence of the smart grid is bringing more networking players into the field. The need for low consistent bandwidth usage differs enough from the traditional information technology world to open the door to new technologies. The predominant players currently consist of a blend of the old and new. Within the wired world Ethernet and HomePlug Green PHY are leading the way with an advantage to HomePlug because it doesn't require installing new wires. In the wireless the realm there are many more competitors but WiFi and ZigBee seem to have the most momentum.

  16. Ashland Area Support Substation Project : Environmental Assessment.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    1992-06-01T23:59:59.000Z

    The Bonneville Power Administration (BPA) provides wholesale electric service to the City of Ashland (the City) by transferring power over Pacific Power & Light Company`s (PP&L) 115-kilovolt (kV) transmission lines and through PP&L`s Ashland and Oak Knoll Substations. The City distributes power over a 12.5-kV system which is heavily loaded during winter peak periods and which has reached the limit of its ability to serve peak loads in a reliable manner. Peak loads under normal winter conditions have exceeded the ratings of the transformers at both the Ashland and Oak Knoll Substations. In 1989, the City modified its distribution system at the request of PP&L to allow transfer of three megawatts (MW`s) of electric power from the overloaded Ashland Substation to the Oak Knoll Substation. In cooperation with PP&L, BPA installed a temporary 6-8 megavolt-amp (MVA) 115-12.5-kV transformer for this purpose. This additional transformer, however, is only a temporary remedy. BPA needs to provide additional, reliable long-term service to the Ashland area through additional transformation in order to keep similar power failures from occurring during upcoming winters in the Ashland area. The temporary installation of another 20-MVA mobile transformer at the Ashland Substation and additional load curtailment are currently being studied to provide for sustained electrical service by the peak winter period 1992. Two overall electrical plans-of-service are described and evaluated in this report. One of them is proposed for action. Within that proposed plan-of-service are location options for the substation. Note that descriptions of actions that may be taken by the City of Ashland are based on information provided by them.

  17. Weekday and Weekend Air Pollutant Levels in Ozone Problem Areas...

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

    Weekday and Weekend Air Pollutant Levels in Ozone Problem Areas in the U.S. Weekday and Weekend Air Pollutant Levels in Ozone Problem Areas in the U.S. 2005 Diesel Engine Emissions...

  18. area dnapl characterization: Topics by E-print Network

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

    assumes to consider the images in terms of area with the same texture. In uncertain environment, it could be better to take an imprecise decision or to reject the area...

  19. Comparison with traditional calibration Wide Area Camera Calibration Using

    E-Print Network [OSTI]

    Stanford University

    Comparison with traditional calibration Wide Area Camera Calibration Using Virtual Calibration Objects Xing Chen, James Davis, Philipp Slusallek Goal Calibrate many cameras arranged to cover a wide area working volume. Building a large physical calibration object is impractical. Solution Build

  20. The Lower Mississippi Valley as a Language Area

    E-Print Network [OSTI]

    Kaufman, David Vincent

    2014-08-31T23:59:59.000Z

    It has been hypothesized that the Southeastern U.S. is a language area, or Sprachbund. However, there has been little systematic examination of the supposed features of this area. The current analysis focuses on a smaller ...