Sample records for finished wind tower

  1. Wind tower service lift

    DOE Patents [OSTI]

    Oliphant, David; Quilter, Jared; Andersen, Todd; Conroy, Thomas

    2011-09-13T23:59:59.000Z

    An apparatus used for maintaining a wind tower structure wherein the wind tower structure may have a plurality of legs and may be configured to support a wind turbine above the ground in a better position to interface with winds. The lift structure may be configured for carrying objects and have a guide system and drive system for mechanically communicating with a primary cable, rail or other first elongate member attached to the wind tower structure. The drive system and guide system may transmit forces that move the lift relative to the cable and thereby relative to the wind tower structure. A control interface may be included for controlling the amount and direction of the power into the guide system and drive system thereby causing the guide system and drive system to move the lift relative to said first elongate member such that said lift moves relative to said wind tower structure.

  2. WIND DATA REPORT WBZ Tower, Hull, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT WBZ Tower, Hull, MA 9/1/06-11/30/06 Prepared for Department of Energy (DOE) Golden.................................................................................................................... 10 Wind Speed Time Series...........................................................................................................

  3. WIND DATA REPORT WBZ Tower, Hull, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT WBZ Tower, Hull, MA 11/13/06-11/30/06 Prepared for Department of Energy (DOE.................................................................................................................... 10 Wind Speed Time Series.........................................................................................................

  4. WIND DATA REPORT WBZ Tower, Hull, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT WBZ Tower, Hull, MA 12/1/06-2/28/07 Prepared for Department of Energy (DOE) Golden...................................................................................................................... 8 Wind Speed Time Series............................................................................................................. 9 Wind Speed Distributions

  5. Hydrogen Storage in Wind Turbine Towers: Cost Analysis and Conceptual...

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

    in Wind Turbine Towers: Cost Analysis and Conceptual Design Hydrogen Storage in Wind Turbine Towers: Cost Analysis and Conceptual Design Preprint 34851.pdf More Documents &...

  6. Wind Turbine Towers Establish New Height Standards and Reduce...

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

    Wind Turbine Towers Establish New Height Standards and Reduce Cost of Wind Energy Wind Turbine Towers Establish New Height Standards and Reduce Cost of Wind Energy Case study that...

  7. New North Dakota Factory to Produce Wind Towers, Jobs

    Broader source: Energy.gov [DOE]

    Wind tower factory could bring back some of the jobs lost when a machine manufacturing plant closed.

  8. Wind turbine tower for storing hydrogen and energy

    DOE Patents [OSTI]

    Fingersh, Lee Jay (Westminster, CO)

    2008-12-30T23:59:59.000Z

    A wind turbine tower assembly for storing compressed gas such as hydrogen. The tower assembly includes a wind turbine having a rotor, a generator driven by the rotor, and a nacelle housing the generator. The tower assembly includes a foundation and a tubular tower with one end mounted to the foundation and another end attached to the nacelle. The tower includes an in-tower storage configured for storing a pressurized gas and defined at least in part by inner surfaces of the tower wall. In one embodiment, the tower wall is steel and has a circular cross section. The in-tower storage may be defined by first and second end caps welded to the inner surface of the tower wall or by an end cap near the top of the tower and by a sealing element attached to the tower wall adjacent the foundation, with the sealing element abutting the foundation.

  9. Impact of Wind Shear and Tower Shadow Effects on Power System with Large Scale Wind Power

    E-Print Network [OSTI]

    Hu, Weihao

    Impact of Wind Shear and Tower Shadow Effects on Power System with Large Scale Wind Power to wind speed variations, the wind shear and the tower shadow effects. The fluctuating power may be ableSILENT/PowerFactory. In this paper, the impacts of wind shear and tower shadow effects on the small signal stability of power systems

  10. Lifting system and apparatus for constructing wind turbine towers

    DOE Patents [OSTI]

    Livingston, Tracy; Schrader, Terry; Goldhardt, James; Lott, James

    2011-02-01T23:59:59.000Z

    The disclosed invention is utilized for mounting a wind turbine and blade assembly on the upper end of a wind turbine tower. The invention generally includes a frame or truss that is pivotally secured to the top bay assembly of the tower. A transverse beam is connected to the frame or truss and extends fore of the tower when the frame or truss is in a first position and generally above the tower when in a second position. When in the first position, a wind turbine or blade assembly can be hoisted to the top of the tower. The wind turbine or blade assembly is then moved into position for mounting to the tower as the frame or truss is pivoted to a second position. When the turbine and blade assembly are secured to the tower, the frame or truss is disconnected from the tower and lowered to the ground.

  11. Wind Shear Characteristics at Central Plains Tall Towers: Preprint

    SciTech Connect (OSTI)

    Schwartz, M.; Elliott, D.

    2006-06-01T23:59:59.000Z

    Conference paper for WindPower 2006 held June 4-7, 2006, in Pittsburgh, PA, describing the wind shear characteristics at tall tower sites in the Central Plains of the United States.

  12. Blandford MTA Tower Wind Monitoring This document provides information not repeated in the monthly wind monitoring

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Blandford MTA Tower Wind Monitoring This document provides information not repeated in the monthly on the Massachusetts Turnpike Authority (MTA) tower at Blandford. A wind vane and two anemometers are located at two heights on the tower: 60 m and 40 m. Details of the equipment and models are: · NRG model Symphonie

  13. Marion Meteorological Tower Wind Monitoring This document provides information not repeated in the monthly wind monitoring

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Marion Meteorological Tower Wind Monitoring This document provides information not repeated on the meteorological tower at Marion: Great Hill Dairy. A wind vane and two anemometers are located at two heights on the tower: 50 m and 38 m. Details of the equipment and models are: · NRG model Symphonie Cellogger · 4 ­ #40

  14. Comparison of Second Wind Triton Data with Meteorological Tower Measurements

    SciTech Connect (OSTI)

    Scott, G.; Elliott, D.; Schwartz, M.

    2010-02-01T23:59:59.000Z

    With the increased interest in remote sensing of wind information in recent years, it is important to determine the reliability and accuracy of new wind measurement technologies if they are to replace or supplement conventional tower-based measurements. In this study, we present the results of an analysis characterizing the measurement performance of a state-of-the-art SOund Detection And Ranging (sodar) device when compared to a high-quality tower measurement program. Second Wind Inc. (Somerville, MA, USA) provided NREL with more than six months of data from a measurement program conducted near an operating wind farm in western Texas.

  15. The Use of Tall Tower Field Data for Estimating Wind Turbine Power Performance , J. Chapman1

    E-Print Network [OSTI]

    Manuel, Lance

    The Use of Tall Tower Field Data for Estimating Wind Turbine Power Performance A. Swift1 , J data acquisition tower is continuously measuring and recording atmospheric conditions at multiple providing barometric pressure and temperature data. A second data acquisition tower approximately 100m

  16. SHM BASED SYSTEM DESIGN OFA WIND TURBINE TOWER USING A MODAL SENSITIVITY BASED BAYES DETECTOR

    E-Print Network [OSTI]

    Boyer, Edmond

    SHM BASED SYSTEM DESIGN OFA WIND TURBINE TOWER USING A MODAL SENSITIVITY BASED BAYES DETECTOR Mads@ramboll.com ABSTRACT It is investigated if material based structural safety can be replaced with safety obtained from of the NREL 5MW wind turbine tower subjected to bending fatigue and horizontal circumferential cracking

  17. Computer Simulation of Cooling Effect of Wind Tower on Passively Ventilated Building

    E-Print Network [OSTI]

    Seryak, J.; Kissock, J. K.

    2002-01-01T23:59:59.000Z

    Computer Simulation of Cooling Effect of Wind Tower on Passively Ventilated Building John Seryak Kelly Kissock Project Engineer Associate Professor Department of Mechanical and Aerospace Engineering... University of Dayton Dayton, Ohio ABSTRACT Traditional buildings are cooled and ventilated by mechanically induced drafts. Natural ventilation aspires to cool and ventilate a building by natural means, such as cross ventilation or wind towers...

  18. Improvement of risk estimate on wind turbine tower buckled by hurricane

    E-Print Network [OSTI]

    Li, Jingwei

    2013-01-01T23:59:59.000Z

    Wind is one of the important reasonable resources. However, wind turbine towers are sure to be threatened by hurricanes. In this paper, method to estimate the number of wind turbine towers that would be buckled by hurricanes is discussed. Monte Carlo simulations show that our method is much better than the previous one. Since in our method, the probability density function of the buckling probability of a single turbine tower in a single hurricane is obtained accurately but not from one approximated expression. The result in this paper may be useful to the design and maintenance of wind farms.

  19. Computer Simulation of Cooling Effect of Wind Tower on Passively Ventilated Building 

    E-Print Network [OSTI]

    Seryak, J.; Kissock, J. K.

    2002-01-01T23:59:59.000Z

    Traditional buildings are cooled and ventilated by mechanically induced drafts. Natural ventilation aspires to cool and ventilate a building by natural means, such as cross ventilation or wind towers, without mechanical equipment. A simple computer...

  20. Estimation of Blade and Tower Properties for the Gearbox Research Collaborative Wind Turbine

    SciTech Connect (OSTI)

    Bir, G.S.; Oyague, F.

    2007-11-01T23:59:59.000Z

    This report documents the structural and modal properties of the blade and tower of a 3-bladed 750-kW upwind turbine to develop an aeroelastic model of the wind turbine.

  1. LQG control of horizontal wind turbines for blades and tower loads alleviation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    LQG control of horizontal wind turbines for blades and tower loads alleviation A. Pintea*, N of power produced by two bladed horizontal variable speed wind turbines. The proposed controller ensures not only an optimal operation of turbines but also enables a compromise with the minimization of the blade

  2. Wind, Thermal, and Earthquake Monitoring of the Watts Towers

    E-Print Network [OSTI]

    English, Jackson

    2013-01-01T23:59:59.000Z

    of the code-level wind forces (Goldstone, 1963). The forcethe full force of the northerly Santa Ana winds. In Aprilof forces and overall displacement under seismic and wind

  3. NREL National Wind Technology Center (NWTC): M2 Tower; Boulder, Colorado (Data)

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

    Jager, D.; Andreas, A.

    The National Wind Technology Center (NWTC), located at the foot of the Rocky Mountains near Boulder, Colorado, is a world-class research facility managed by NREL for the U.S. Department of Energy. NWTC researchers work with members of the wind energy industry to advance wind power technologies that lower the cost of wind energy through research and development of state-of-the-art wind turbine designs. NREL's Measurement and Instrument Data Center provides data from NWTC's M2 tower which are derived from instruments mounted on or near an 82 meter (270 foot) meteorological tower located at the western edge of the NWTC site and about 11 km (7 miles) west of Broomfield, and approximately 8 km (5 miles) south of Boulder, Colorado. The data represent the mean value of readings taken every two seconds and averaged over one minute. The wind speed and direction are measured at six heights on the tower and air temperature is measured at three heights. The dew point temperature, relative humidity, barometric pressure, totalized liquid precipitation, and global solar radiation are also available.

  4. Evidence of a Threshold Wind Speed in Tower-mounted Scatterometer Data David W. Draper and David G. Long

    E-Print Network [OSTI]

    Long, David G.

    . Evidence of the threshold wind speed and a hysteresis effect have been observed in airship and wave tank in airship data [2]. YSCAT, an ultra-wideband (2-14 GHz) tower-mounted scat- terometer, provides significant

  5. Comparison of Triton SODAR Data to Meteorological Tower Wind Measurement Data in Hebei Province, China

    SciTech Connect (OSTI)

    Yuechun, Y.; Jixue, W.; Hongfang, W.; Guimin, L.; Bolin, Y.; Scott, G.; Elliott, D.; Kline, D.

    2012-01-01T23:59:59.000Z

    With the increased interest in remote sensing of wind information in recent years, it is important to determine the reliability and accuracy of new wind measurement technologies if they are to replace or supplement conventional tower-based measurements. In view of this, HydroChina Corporation and the United States National Renewable Energy Laboratory (NREL) conducted a comparative test near a wind farm in Hebei Province, China. We present the results of an analysis characterizing the measurement performance of a state-of-the-art Sound Detection and Ranging (sodar) device when compared to a traditional tower measurement program. NREL performed the initial analysis of a three-month period and sent the results to HydroChina. When another month of data became available, HydroChina and their consultant Beijing Millenium Engineering Software (MLN) repeated NREL's analysis on the complete data set, also adding sensitivity analysis for temperature, humidity, and wind speed (Section 6). This report presents the results of HydroChina's final analysis of the four-month period.

  6. Wind shear for large wind turbine generators at selected tall tower sites

    SciTech Connect (OSTI)

    Elliott, D.L.

    1984-04-01T23:59:59.000Z

    The objective of the study described in this report is to examine the nature of wind shear profiles and their variability over the height of large horizontal-axis wind turbines and to provide information on wind shear relevant to the design and opertion of large wind turbines. Wind turbine fatigue life and power quality are related through the forcing functions on the blade to the shapes of the wind shear profiles and their fluctuations over the disk of rotation.

  7. Low Wind Speed Technology Phase II: Design and Demonstration of On-Site Fabrication of Fluted-Steel Towers Using LITS-Form(TM) Process

    SciTech Connect (OSTI)

    Not Available

    2006-06-01T23:59:59.000Z

    This fact sheet describes NREL's subcontract with Native American Technologies to develop a new method of metal plate forming to produce wind turbine towers.

  8. 2010 Wind Technologies Market Report

    E-Print Network [OSTI]

    Wiser, Ryan

    2012-01-01T23:59:59.000Z

    wind turbine components (specifically, generators, bladeschangers. ” Wind turbine components such as blades, towers,17%). Wind turbine component exports (towers, blades,

  9. Wind Turbine Towers Establish New Height Standards and Reduce Cost of Wind

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: SinceDevelopment | Department ofPartnerships ToolkitWasteWho WillWind Program NewsDepartmentEnergy

  10. Sandia National Laboratories: anemometer towers

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

    anemometer towers Characterizing Scaled Wind Farm Technology Facility Inflow On April 1, 2014, in Energy, News, News & Events, Partnership, Renewable Energy, Wind Energy The Scaled...

  11. 2011 Wind Technologies Market Report

    E-Print Network [OSTI]

    Bolinger, Mark

    2013-01-01T23:59:59.000Z

    wind turbine components (specifically, generators, bladeschangers. ” Wind turbine components such as blades, towers,Canada (8%). Wind turbine component exports (towers, blades,

  12. LANL Finishing

    SciTech Connect (OSTI)

    Davenport, Karen [Los Alamos National Laboratory

    2010-06-03T23:59:59.000Z

    Karen Davenport of Los Alamos National Laboratory discusses a high-throughput next generation genome finishing pipeline on June 3, 2010 at the "Sequencing, Finishing, Analysis in the Future" meeting in Santa Fe, NM

  13. Convection towers

    DOE Patents [OSTI]

    Prueitt, M.L.

    1996-01-16T23:59:59.000Z

    Convection towers which are capable of cleaning the pollution from large quantities of air, of generating electricity, and of producing fresh water utilize the evaporation of water sprayed into the towers to create strong airflows and to remove pollution from the air. Turbines in tunnels at the skirt section of the towers generate electricity, and condensers produce fresh water. 6 figs.

  14. Convection towers

    DOE Patents [OSTI]

    Prueitt, Melvin L. (Los Alamos, NM)

    1994-01-01T23:59:59.000Z

    Convection towers which are capable of cleaning the pollution from large quantities of air and of generating electricity utilize the evaporation of water sprayed into the towers to create strong airflows and to remove pollution from the air. Turbines in tunnels at the skirt section of the towers generate electricity. Other embodiments may also provide fresh water, and operate in an updraft mode.

  15. Convection towers

    DOE Patents [OSTI]

    Prueitt, Melvin L. (Los Alamos, NM)

    1996-01-01T23:59:59.000Z

    Convection towers which are capable of cleaning the pollution from large quantities of air, of generating electricity, and of producing fresh water utilize the evaporation of water sprayed into the towers to create strong airflows and to remove pollution from the air. Turbines in tunnels at the skirt section of the towers generate electricity, and condensers produce fresh water.

  16. Convection towers

    DOE Patents [OSTI]

    Prueitt, Melvin L. (Los Alamos, NM)

    1995-01-01T23:59:59.000Z

    Convection towers which are capable of cleaning the pollution from large quantities of air, of generating electricity, and of producing fresh water utilize the evaporation of water sprayed into the towers to create strong airflows and to remove pollution from the air. Turbines in tunnels at the skirt section of the towers generate electricity, and condensers produce fresh water.

  17. Convection towers

    DOE Patents [OSTI]

    Prueitt, M.L.

    1994-02-08T23:59:59.000Z

    Convection towers which are capable of cleaning the pollution from large quantities of air and of generating electricity utilize the evaporation of water sprayed into the towers to create strong airflows and to remove pollution from the air. Turbines in tunnels at the skirt section of the towers generate electricity. Other embodiments may also provide fresh water, and operate in an updraft mode. 5 figures.

  18. KALMAN-FILTER BASED DATA FUSION FOR NEUTRALAXIS TRACKING FOR DAMAGE DETECTION IN WIND-TURBINE TOWERS

    E-Print Network [OSTI]

    Boyer, Edmond

    KALMAN-FILTER BASED DATA FUSION FOR NEUTRALAXIS TRACKING FOR DAMAGE DETECTION IN WIND-TURBINE Monitoring, Strain Sensors, Wind Turbine, Neutral Axis tracking, Kalman Filter INTRODUCTION Ever since to the advancements in the field of materials engineering and manufacturing methods. Newer, bigger wind turbines which

  19. Tokyo Tower

    E-Print Network [OSTI]

    Hacker, Randi; Tsutsui, William; Ashworth, William

    2007-01-03T23:59:59.000Z

    Broadcast Transcript: Scanning the skyline of the Japanese capital today, it's hard to catch sight of Tokyo Tower. Modeled on the Eiffel Tower and 333 meters in height, the orange-and-white landmark is the world's tallest self-supporting steel...

  20. Effects of guy wires on SWECS tower dynamics. Technical report

    SciTech Connect (OSTI)

    Butterfield, C P; Pykkonen, K R; Sexton, J H

    1980-07-01T23:59:59.000Z

    The Rocky Flats (RF) Supporting Research and Technology (SRT) study for tower testing/analysis has led to some useful information concerning the effect of tower guy pretension on small wind system tower dynamics. The effect of guy-wire pretension on tower natural frequencies is usually considered negligible if the guy: (1) has no sag caused by gravity, and (2) the tension is not approaching the tower buckling load. At the rf test center it was found that, for the test tower even when these conditions were avoided, the guy fundamental frequency must be 30% greater than the tower fundamental frequency to maintain the fundamental's characteristics.

  1. Vortex-augmented cooling tower - windmill combination

    DOE Patents [OSTI]

    McAllister, J.E. Jr.

    1982-09-02T23:59:59.000Z

    A cooling tower for cooling large quantities of effluent water from a production facility by utilizing natural wind forces includes the use of a series of helically directed air inlet passages extending outwardly from the base of the tower to introduce air from any direction in a swirling vortical pattern while the force of the draft created in the tower makes it possible to place conventional power generating windmills in the air passage to provide power as a by-product.

  2. Upcoming Funding Opportunity for Tower Manufacturing and Installation...

    Energy Savers [EERE]

    intends to support partnerships that lead to innovative designs and processes for wind turbine tower manufacturing and turbine system installation. Supported projects will develop...

  3. Value Capture in the Global Wind Energy Industry

    E-Print Network [OSTI]

    Dedrick, Jason; Kraemer, Kenneth L.

    2011-01-01T23:59:59.000Z

    a large scale wind turbine are the tower, blades, and gearof large wind turbine (REpower MM92) Tower Rotor blades Gearwind turbine. Towers run from 40-100 meters, while blades

  4. 2009 Wind Technologies Market Report

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01T23:59:59.000Z

    generating sets. Wind turbine blades, hubs, generators,wind turbine components that include towers (trade category is “towers and lattice masts”), generators (“AC generators from 750 to 10,000 kVA”), blades

  5. Cooling Towers: Understanding Key Components of Cooling Towers...

    Office of Environmental Management (EM)

    Cooling Towers: Understanding Key Components of Cooling Towers and How to Improve Water Efficiency Cooling Towers: Understanding Key Components of Cooling Towers and How to Improve...

  6. Surface and Tower Meteorological Instrumentation at NSA Handbook - January 2006

    SciTech Connect (OSTI)

    MT Ritsche

    2006-01-30T23:59:59.000Z

    The Surface and Tower Meteorological Instrumentation at Atqasuk (METTWR2H) uses mainly conventional in situ sensors to measure wind speed, wind direction, air temperature, dew point and humidity mounted on a 10-m tower. It also obtains barometric pressure, visibility, and precipitation data from sensors at or near the base of the tower. In addition, a Chilled Mirror Hygrometer is located at 1 m for comparison purposes. Temperature and relative humidity probes are mounted at 2 m and 5 m on the tower. For more information, see the Surface and Tower Meteorological Instrumentation at Atqasuk Handbook.

  7. Robi, Robichaud, Wind Technologies and Evolving Opportunities

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

    RPS * Wind Technology Overview * Larger Rotors * Taller Towers * Improved Controls * Wind Resource * Improved Assessment 2 Innova+on for Our Energy Future National Wind Technology...

  8. New Facility to Shed Light on Offshore Wind Resource (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-05-01T23:59:59.000Z

    Chesapeake Light Tower facility will gather key data for unlocking the nation's vast offshore wind resource.

  9. Vortex-augmented cooling tower-windmill combination

    DOE Patents [OSTI]

    McAllister, Jr., John E. (Aiken, SC)

    1985-01-01T23:59:59.000Z

    A cooling tower for cooling large quantities of effluent water from a production facility by utilizing natural wind forces includes the use of a series of helically directed air inlet passages extending outwardly from the base of the tower to introduce air from any direction in a swirling vortical pattern while the force of the draft created in the tower makes it possible to place conventional power generating windmills in the air passages to provide power as a by-product.

  10. WIND DATA REPORT Quincy, Quarry Hills

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Quincy, Quarry Hills 9/1/2006 ­ 11/30/2006 Prepared for Massachusetts Technology.......................................................................................................................... 7 Tower Effects on Measured Wind Speed

  11. Improvement of Offshore Wind Resource Modeling in the Mid-

    E-Print Network [OSTI]

    Firestone, Jeremy

    Improvement of Offshore Wind Resource Modeling in the Mid- Atlantic Bight Wind Energy Symposium Sienkiewicz , Chris Hughes 26 February 2013 #12;Improving Atmospheric Models for Offshore Wind Resource Interaction Tower ­ 23 m NOAA Buzzard's Bay Tower ­ 25 m Cape Wind Tower (60 m from 2003-2011; just platform

  12. 2011 Wind Technologies Market Report

    E-Print Network [OSTI]

    Bolinger, Mark

    2013-01-01T23:59:59.000Z

    and the drop in wind power plant installations since 2009and the drop in wind power plant installations since 2009towers used in U.S. wind power plants increases from 80% in

  13. Introducing an Online Cooling Tower Performance Analysis Tool

    E-Print Network [OSTI]

    Muller, M.R.; Muller, M.B.; Rao, P.

    2012-01-01T23:59:59.000Z

    and variable nature of all of the factors that can influence performance; fan speed, wind speed, sump temperature, heat load, ambient temperature, relative humidity, etc. This can be overwhelming for a regular operator resulting in many cooling towers being set...

  14. Effects of Temporal Wind Patterns on the Value of Wind-Generated Electricity at Different Sites in California and the Northwest

    E-Print Network [OSTI]

    Fripp, Matthias; Wiser, Ryan

    2006-01-01T23:59:59.000Z

    towers or operational wind farms are needed to resolveapproach to locating wind farms in the UK. ” Renewablepower from potential wind farm locations in California and

  15. Steve Kropper WindPole Ventures, LLC

    E-Print Network [OSTI]

    cover 85% all wind 22 year license Ownership/control over data $15k capex per tower (new tower cost% margin. capex $15k per tower ($8k hardware + $7k labor) Annual revenue $20m from 580 towers 2.5 clients

  16. LWST Phase I Project Conceptual Design Study: Evaluation of Design and Construction Approaches for Economical Hybrid Steel/Concrete Wind Turbine Towers; June 28, 2002 -- July 31, 2004

    SciTech Connect (OSTI)

    LaNier, M. W.

    2005-01-01T23:59:59.000Z

    The United States Department of Energy (DOE) Wind Energy Research Program has begun a new effort to partner with U.S. industry to develop wind technology that will allow wind systems to compete in regions of low wind speed. The Class 4 and 5 sites targeted by this effort have annual average wind speeds of 5.8 m/s (13 mph), measured at 10 m (33 ft) height. Such sites are abundant in the United States and would increase the land area available for wind energy production twenty-fold. The new program is targeting a levelized cost of energy of 3 cents/kWh at these sites by 2010. A three-element approach has been initiated. These efforts are concept design, component development, and system development. This work builds on previous activities under the WindPACT program and the Next Generation Turbine program. If successful, DOE estimates that his new technology could result in 35 to 45 gigawatts of additional wind capacity being installed by 2020.

  17. How to Build a Tower

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) EnvironmentalGyroSolé(tm) HarmonicbetandEnergy 2010a Wind Turbine WorksHomeTower

  18. Beneath the shadow of the Tower Soldiers' Tower

    E-Print Network [OSTI]

    Beneath the shadow of the Tower Soldiers' Tower Schedule of Events October-November 2013 As of Oct. 21, 2013 Telephone: 416-978-3485 (office) E-mail: soldiers.tower@utoronto.ca Soldiers' Tower Web Site: www.alumni.utoronto.ca/tower Facebook: www.facebook.com/soldierstower U of T Events web site: www

  19. Optimal Solid Space Tower

    E-Print Network [OSTI]

    Alexander Bolonkin

    2007-01-08T23:59:59.000Z

    Theory and computations are provided for building of optimal (minimum weight) solid space towers (mast) up to one hundred kilometers in height. These towers can be used for tourism; scientific observation of space, observation of the Earth surface, weather and upper atmosphere experiment, and for radio, television, and communication transmissions. These towers can also be used to launch spaceships and Earth satellites. These macroprojects are not expensive. They require strong hard material (steel). Towers can be built using present technology. Towers can be used (for tourism, communication, etc.) during the construction process and provide self-financing for further construction. The tower design does not require human work at high altitudes; the tower is separated into sections; all construction can be done at the Earth surface. The transport system for a tower consists of a small engine (used only for friction compensation) located at the Earth surface. Problems involving security, control, repair, and stability of the proposed towers are addressed in other cited publications.

  20. Vice President CEO, Tower Foundation

    E-Print Network [OSTI]

    Su, Xiao

    Vice President CEO, Tower Foundation Administrative Assistant to the AVP Information Representative Tower Foundation Charitable Gifts Officer Gift Analyst Gift Analyst Gift Analyst Senior Analyst Tower Foundation Stewardship Director Graphic Designer Administrative Assistant Web Communications

  1. Flexible dynamics of floating wind turbines

    E-Print Network [OSTI]

    Luypaert, Thomas (Thomas J.)

    2012-01-01T23:59:59.000Z

    This work presents Tower Flex, a structural dynamics model for a coupled analysis of offshore floating wind turbines consisting of a tower, a floating platform and a mooring system. In this multi-body, linear frequency-domain ...

  2. Control Tower Procedures Nolan, Chap 6

    E-Print Network [OSTI]

    1 1 Control Tower Procedures Nolan, Chap 6 2 Control Towers · Responsibilities: 1. Ensure Towers · VFR Towers ­ NOT delegated separation responsibility · Except initial departure traffic ­ ARTCC separates IFR traffic · Non-radar-approach control towers ­ Delegated IFR separation responsibility

  3. Surface and Tower Meteorological Instrumentation at Barrow (METTWR4H) Handbook

    SciTech Connect (OSTI)

    Ritsche, MT

    2008-04-01T23:59:59.000Z

    The Barrow meteorology station (BMET) uses mainly conventional in situ sensors mounted at four different heights (2m, 10m, 20m and 40m) on a 40 m tower to obtain profiles of wind speed, wind direction, air temperature, dew point and humidity. It also obtains barometric pressure, visibility and precipitation data from sensors at the base of the tower. Additionally, a Chilled Mirror Hygrometer and an Ultrasonic wind speed sensor are located near the 2m level for comparison purposes.

  4. Finishing Using Next Generation Technologies

    SciTech Connect (OSTI)

    Van Tonder, Andries [Wellcome Trust Sanger Institute

    2010-06-03T23:59:59.000Z

    Andries van Tonder of Wellcome Trust Sanger Institute discusses a pipeline for finishing genomes to the gold standard on June 3, 2010 at the "Sequencing, Finishing, Analysis in the Future" meeting in Santa Fe, NM

  5. The Monster Tower and Action Selectors

    E-Print Network [OSTI]

    Howard, Wyatt

    2013-01-01T23:59:59.000Z

    The Monster Tower . . . . . . . . . . . . . . . . . . . .3.2.1 Constructing the Monster Tower. . . . . . . . . 3.2.2Material for the Monster Tower 7.1 Definition of a Goursat

  6. the risk issue of wind measurement for wind turbine operation

    E-Print Network [OSTI]

    Leu, Tzong-Shyng "Jeremy"

    Sciences, National Taiwan University #12;outline · Wind measurement in meteorology and wind farm design-related issues on wind turbine operation 3/31/2011 2 #12;WIND MEASUREMENT IN METEOROLOGY & WIND FARM DESIGN 3.brainybetty.com 11 wind farm at ChangHwa Coastal Industrial Park 70m wind tower 70m 50m 30m 10m #12;1 2 3 4 5 1 (70M

  7. Property Tax Assessment for Commercial Wind Farms

    Broader source: Energy.gov [DOE]

    Pennsylvania enacted legislation in November 2006 providing that wind turbines and related equipment (including towers and foundations) may not be counted by tax assessors when setting property...

  8. The nominal cooling tower

    SciTech Connect (OSTI)

    Burger, R. [Burger Associates, Dallas, TX (United States)

    1995-12-31T23:59:59.000Z

    The heat Rejection Industry defines a nominal cooling tower as circulating three gallons of water per minute (GPM) per ton of refrigeration from entering the tower at 95{degrees}F. Hot Water temperature (HWT) Leaving at 85{degrees}F Cold Water Temperature (CWT) at a Design Wet Bulb of 70{degrees}F (WBT). Manufacturers then provide a selection chart based on various wet bulb temperatures and HWTs. The wet bulb fluctuates and varies through out the world since it is the combination ambient temperature, relative humidity, and/or dew point. Different HWT and CWT requirements are usually charted as they change, so that the user can select the nominal cooling tower model recommended by the manufacturer. Ask any HVAC operator, refinery manager, power generating station operator what happens when the Wet Bulb reaches or exceeds the design WBT of the area. He probably will tell you, {open_quotes}My cooling tower works quite well, but in the summer time, I usually have trouble with it.{close_quotes} This occurs because he is operating a nominal cooling tower.

  9. Cooling Towers- Energy Conservation Strategies Understanding Cooling Towers 

    E-Print Network [OSTI]

    Smith, M.

    1991-01-01T23:59:59.000Z

    Cooling towers are energy conservation devices that Management, more often than not, historically overlooks in the survey of strategies for plant operating efficiencies. The utilization of the colder water off the cooling tower is the money maker!...

  10. Cooling Towers- Energy Conservation Strategies Understanding Cooling Towers

    E-Print Network [OSTI]

    Smith, M.

    Cooling towers are energy conservation devices that Management, more often than not, historically overlooks in the survey of strategies for plant operating efficiencies. The utilization of the colder water off the cooling tower is the money maker!...

  11. Cooling Towers, The Debottleneckers

    E-Print Network [OSTI]

    Burger, R.

    Power generating plants and petro-chemical works are always expanding. An on-going problem is to identify and de-bottle neck restricting conditions of growth. The cooling tower is a highly visible piece of equipment. Most industrial crossflow units...

  12. Cooling Towers, The Debottleneckers 

    E-Print Network [OSTI]

    Burger, R.

    1998-01-01T23:59:59.000Z

    looking into the function of the cooling tower, which is to produce colder water- and question the quality of water discharged from that simple appearing box. These cross-flow structures are quite large, ranging up to 60 feet tall with as many as 6 or more...

  13. PERFORMANCE ANALYSIS OF MECHANICAL DRAFT COOLING TOWER

    SciTech Connect (OSTI)

    Lee, S; Alfred Garrett, A; James02 Bollinger, J; Larry Koffman, L

    2009-02-10T23:59:59.000Z

    Industrial processes use mechanical draft cooling towers (MDCT's) to dissipate waste heat by transferring heat from water to air via evaporative cooling, which causes air humidification. The Savannah River Site (SRS) has cross-flow and counter-current MDCT's consisting of four independent compartments called cells. Each cell has its own fan to help maximize heat transfer between ambient air and circulated water. The primary objective of the work is to simulate the cooling tower performance for the counter-current cooling tower and to conduct a parametric study under different fan speeds and ambient air conditions. The Savannah River National Laboratory (SRNL) developed a computational fluid dynamics (CFD) model and performed the benchmarking analysis against the integral measurement results to accomplish the objective. The model uses three-dimensional steady-state momentum, continuity equations, air-vapor species balance equation, and two-equation turbulence as the basic governing equations. It was assumed that vapor phase is always transported by the continuous air phase with no slip velocity. In this case, water droplet component was considered as discrete phase for the interfacial heat and mass transfer via Lagrangian approach. Thus, the air-vapor mixture model with discrete water droplet phase is used for the analysis. A series of parametric calculations was performed to investigate the impact of wind speeds and ambient conditions on the thermal performance of the cooling tower when fans were operating and when they were turned off. The model was also benchmarked against the literature data and the SRS integral test results for key parameters such as air temperature and humidity at the tower exit and water temperature for given ambient conditions. Detailed results will be published here.

  14. Second Wind Sonic Wind Profiler: Cooperative Research and Development Final Report, CRADA number CRD-08-00297

    SciTech Connect (OSTI)

    Johnson, J. A.

    2010-07-01T23:59:59.000Z

    Second Wind will deploy their Triton Sonic Wind Profiler at the National Wind Technology Center for the purposes of verification with measurements made by the NWTC 80 meter Meteorological tower.

  15. Tornado type wind turbines

    DOE Patents [OSTI]

    Hsu, Cheng-Ting (Ames, IA)

    1984-01-01T23:59:59.000Z

    A tornado type wind turbine has a vertically disposed wind collecting tower with spaced apart inner and outer walls and a central bore. The upper end of the tower is open while the lower end of the structure is in communication with a wind intake chamber. An opening in the wind chamber is positioned over a turbine which is in driving communication with an electrical generator. An opening between the inner and outer walls at the lower end of the tower permits radially flowing air to enter the space between the inner and outer walls while a vertically disposed opening in the wind collecting tower permits tangentially flowing air to enter the central bore. A porous portion of the inner wall permits the radially flowing air to interact with the tangentially flowing air so as to create an intensified vortex flow which exits out of the top opening of the tower so as to create a low pressure core and thus draw air through the opening of the wind intake chamber so as to drive the turbine.

  16. IMU Activities Tower Application and Contract 1 INDIANA MEMORIAL UNION STUDENT ACTIVITIES TOWER

    E-Print Network [OSTI]

    Indiana University

    IMU Activities Tower Application and Contract 1 INDIANA MEMORIAL UNION STUDENT ACTIVITIES TOWER March 21, 2012 Union Board Office- 2nd floor of the IMU Activities Tower ­ room 270 The following Student Activities Tower: Organization Name

  17. Experimental Number Theory Part I : Tower Arithmetic

    E-Print Network [OSTI]

    Zeilberger, Doron

    Experimental Number Theory Part I : Tower Arithmetic by Edinah K. Gnang January 15, 2011 1 rooted trees, which we shall here refer to as towers. The bijection between numbers and towers provides by XXX = (xk)1kn , (1) a tower expansion ( or simply a tower ) over XXX is a finite product of iterated

  18. Improving Process Cooling Tower Eddiciency

    E-Print Network [OSTI]

    Turpish, W.

    2013-01-01T23:59:59.000Z

    -Fifth Industrial Energy Technology Conference New Orleans, LA. May 21-24, 2013 2 Types of Cooling Towers Forced Draft Towers ESL-IE-13-05-08 Proceedings of the Thrity-Fifth Industrial Energy Technology Conference New Orleans, LA. May 21-24, 2013 3 Types... of Cooling Towers Induced draft Cross-flow ESL-IE-13-05-08 Proceedings of the Thrity-Fifth Industrial Energy Technology Conference New Orleans, LA. May 21-24, 2013 4 Types of Cooling Towers Induced Draft-Counter Flow Two-cell Single Cell Four Cell...

  19. Advanced Wind Energy Projects Test Facility Moving to Texas Tech...

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

    technologies. The Lubbock site will include an initial installation of two 225-kilowatt wind turbines and three anemometer towers, with the potential to expand to nine or more...

  20. Proceedings from the Wind Manufacturing Workshop: Achieving 20...

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

    to address this workforce issue. Transportation logistics issues-if unresolved-are potential showstoppers to achieving the 20% Wind Scenario. Taller, wider towers and...

  1. Direct drive wind turbine

    DOE Patents [OSTI]

    Bywaters, Garrett; Danforth, William; Bevington, Christopher; Jesse, Stowell; Costin, Daniel

    2006-10-10T23:59:59.000Z

    A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

  2. Direct drive wind turbine

    DOE Patents [OSTI]

    Bywaters, Garrett; Danforth, William; Bevington, Christopher; Stowell, Jesse; Costin, Daniel

    2006-07-11T23:59:59.000Z

    A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

  3. Direct drive wind turbine

    DOE Patents [OSTI]

    Bywaters, Garrett Lee; Danforth, William; Bevington, Christopher; Stowell, Jesse; Costin, Daniel

    2006-09-19T23:59:59.000Z

    A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

  4. Direct drive wind turbine

    DOE Patents [OSTI]

    Bywaters, Garrett; Danforth, William; Bevington, Christopher; Jesse, Stowell; Costin, Daniel

    2007-02-27T23:59:59.000Z

    A wind turbine is provided that minimizes the size of the drive train and nacelle while maintaining the power electronics and transformer at the top of the tower. The turbine includes a direct drive generator having an integrated disk brake positioned radially inside the stator while minimizing the potential for contamination. The turbine further includes a means for mounting a transformer below the nacelle within the tower.

  5. Semi-finished modular cells

    E-Print Network [OSTI]

    Bachelder, Laura Govoni, 1971-

    2002-01-01T23:59:59.000Z

    This thesis subject is a pre-fabricated element (cell): a system that employs natural, light, and economic materials to produce a near-finished portion of a building. The intent is to introduce sustainable design into ...

  6. Best Management Practice #10: Cooling Tower Management

    Broader source: Energy.gov [DOE]

    Cooling towers regulate temperature by dissipating heat from recirculating water used to cool chillers, air-conditioning equipment, or other process equipment. Heat is rejected from the tower...

  7. Untapped Energy Savings from Cooling Towers 

    E-Print Network [OSTI]

    Phelps Jr., P.

    2011-01-01T23:59:59.000Z

    of cooling towers; crossflow and counterflow. Many older towers are of the crossflow type and many newer towers are counterflow. The two types are most easily identified by looking at the sides of the tower. Crossflow towers have the air inlets all... the way up the sides of the tower, and air is drawn inward across the falling water, hence the term crossflow. Counterflow towers only have inlets around the bottom of the tower, and air is drawn in and upward through the falling water, hence the term...

  8. Ris National Laboratory Wind Energy Department

    E-Print Network [OSTI]

    Risø National Laboratory Postprint Wind Energy Department Year 2007 Paper: www at the National Test Site for wind turbines at Høvsøre (Denmark) and at a 250 m high TV tower at Hamburg (Germany in predictions of the wind profile in the lowest few hundred metres of the atmosphere for use in wind energy

  9. Concept study and validation of Antarctic telescope tower SPIE vol. 6268, Advances in Stellar Interferometry, paper 41, 2006

    E-Print Network [OSTI]

    Rutten, Rob

    analysis yielded lateral deflections at the top of 0.3 mm for typical winds and 12.1 mm for extreme gusts to achieve imaging performance comparable to the Hubble Space Telescope at relatively low cost using for telescope towers. Using data for typical and extreme wind at Dome C to generate wind loads, finite element

  10. Stellar Explosions by Magnetic Towers

    E-Print Network [OSTI]

    Dmitri A. Uzdensky; Andrew I. MacFadyen

    2006-05-05T23:59:59.000Z

    We propose a magnetic mechanism for the collimated explosion of a massive star relevant for GRBs, XRFs and asymmetric supernovae. We apply Lynden-Bell's magnetic tower scenario to the interior of a massive rotating star after the core has collapsed to form a black hole with an accretion disk or a millisecond magnetar acting as a central engine. We solve the force-free Grad-Shafranov equation to calculate the magnetic structure and growth of a tower embedded in a stellar environment. The pressure of the toroidal magnetic field, continuously generated by differential rotation of the central engine, drives a rapid expansion which becomes vertically collimated after lateral force balance with the surrounding gas pressure is reached. The collimation naturally occurs because hoop stress concentrates magnetic field toward the rotation axis and inhibits lateral expansion. This leads to the growth of a self-collimated magnetic tower. When embedded in a massive star, the supersonic expansion of the tower drives a strong bow shock behind which an over-pressured cocoon forms. The cocoon confines the tower by supplying collimating pressure and provides stabilization against disruption due to MHD instabilities. Because the tower consists of closed field lines starting and ending on the central engine, mixing of baryons from the cocoon into the tower is suppressed. The channel cleared by the growing tower is thus plausibly free of baryons and allows the escape of magnetic energy from the central engine through the star. While propagating down the stellar density gradient, the tower accelerates and becomes relativistic. During the expansion, fast collisionless reconnection becomes possible resulting in dissipation of magnetic energy which may be responsible for GRB prompt emission.

  11. Dynamic response analysis of a 900 kW wind turbine subject to ground excitation

    E-Print Network [OSTI]

    Caudillo, Adrian Felix

    2012-01-01T23:59:59.000Z

    geometry of the blades on a wind turbine has, in the past,of the tower and blades of a 900 kW wind turbine (source:per blade). For this portion of the study, the wind turbine

  12. TOWER OF COARSE MODULI KINYA KIMURA

    E-Print Network [OSTI]

    Fried, Michael

    TOWER OF COARSE MODULI KINYA KIMURA Modular Towers is introduced by M. Fried for analogue of the towers of modular curves in the framework of Hurwitz space theory. Let p be a prime, G a p of which order of the elements is prime to p. Then we can consider the tower of Hurwitz space associated

  13. THE UNIVERSITY OF EDINBURGH APPLETON TOWER

    E-Print Network [OSTI]

    Edinburgh, University of

    THE UNIVERSITY OF EDINBURGH APPLETON TOWER A GUIDE TO ACCESS AND FACILITIES Appleton Tower confirm the evacuation arrangements". #12;Introduction Disabled Access Guide for Appleton Tower APPLETON TOWER was named in posthumous honour of physicist Sir Edward Appleton, the Principal who oversaw

  14. Methodologies for Continuous Cellular Tower Data Analysis

    E-Print Network [OSTI]

    Clauset, Aaron

    Methodologies for Continuous Cellular Tower Data Analysis Nathan Eagle1,2 , John A. Quinn3 cellular tower data from 215 randomly sampled subjects in a major urban city. We demonstrate the potential by tower transitions. The tower groupings from these unsupervised clustering techniques are subsequently

  15. David Hume Tower George Square, Edinburgh

    E-Print Network [OSTI]

    Edinburgh, University of

    David Hume Tower George Square, Edinburgh EH8 9JX 0131 650 8295 http://www.ed.ac.uk/maps THE UNIVERSITY OF EDINBURGH DAVID HUME TOWER A GUIDE TO ACCESS AND FACILITIES #12;If you require this document the evacuation arrangements". #12;Disabled Access Guide for David Hume Tower Introduction DAVID HUME TOWER

  16. The Best Finish First: Sequence Finishing with Whole Genome Mapping ( 7th Annual SFAF Meeting, 2012)

    ScienceCinema (OSTI)

    Sweeney, Deacon [OpGen, Inc.

    2013-03-22T23:59:59.000Z

    Deacon Sweeney on "the Best Finish First: Sequence Finishing with Whole Genome Mapping" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

  17. A' Brief. History of the Tower Shielding Facility and Tower Shielding Facility

    E-Print Network [OSTI]

    A' Brief. History of the Tower Shielding Facility and Programs Tower Shielding Facility Hoisting Equipment and Handling Pool Tower Shielding Reactor TSR-II Assembly and Outer Reflector Reactor Suspension buildings (1953) 0 Towers form a lOO- by 200-j? rectangle 0 Unit weight of towers less than 400 lb/' - gives

  18. Cooling Towers, Energy Conservation Machines

    E-Print Network [OSTI]

    Burger, R.

    1980-01-01T23:59:59.000Z

    Cooling towers, in all too many industrial plants, are often the neglected units of the process chain which are hidden bonanzas for energy conservation and dollar savings. By lowering the entire systems temperature by the use of colder water...

  19. Sandia National Laboratories: Power Towers

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

    Trough Systems CLFR Power Towers Acciona Abengoa Sener Solar Millennium SkyFuel Siemens Ausra SPGMann SkyFuel Abengoa Brightsource Energy SolarReserve eSolar Dish Engine...

  20. Cooling Towers, Energy Conservation Strategies

    E-Print Network [OSTI]

    Burger, R.

    1983-01-01T23:59:59.000Z

    system. While our engineers are pretty well convinced of the importance of their sophisticated equipment, and rightly so, they take the cooling towers and the cold water returning from them for granted. Design Conditions are specified...

  1. Tower Temperature and Humidity Sensors (TWR) Handbook

    SciTech Connect (OSTI)

    Cook, DR

    2010-02-01T23:59:59.000Z

    Three tall towers are installed at the Atmospheric Radiation Measurement (ARM) Climate Research Facility: a 60-meter triangular tower at the Southern Great Plains (SGP) Central Facility (CF), a 21-meter walkup scaffolding tower at the SGP Okmulgee forest site (E21), and a 40-meter triangular tower at the North Slope of Alaska (NSA) Barrow site. The towers are used for meteorological, radiological, and other measurements.

  2. National-Scale Wind Resource Assessment for Power Generation (Presentation)

    SciTech Connect (OSTI)

    Baring-Gould, E. I.

    2013-08-01T23:59:59.000Z

    This presentation describes the current standards for conducting a national-scale wind resource assessment for power generation, along with the risk/benefit considerations to be considered when beginning a wind resource assessment. The presentation describes changes in turbine technology and viable wind deployment due to more modern turbine technology and taller towers and shows how the Philippines national wind resource assessment evolved over time to reflect changes that arise from updated technologies and taller towers.

  3. Multi-objective optimization of solar tower power plants

    E-Print Network [OSTI]

    Ábrahám, Erika

    Multi-objective optimization of solar tower power plants Pascal Richter Center for Computational · Optimization of solar tower power plants 1/20 #12;Introduction ­ Solar tower power plants Solar tower PS10 (11 of the solar tower Pascal Richter · Optimization of solar tower power plants 2/20 #12;Model of solar tower

  4. 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

  5. 7.2.9. Tower 7.2.10. Winterdienstgebude /

    E-Print Network [OSTI]

    Berlin,Technische Universität

    .2.9.3.4.3 Überwachung der Notstromversorgung des Towers 7.2.9.3.5 Kälteversorgung des Towers / Cooling Supply of Tower 7

  6. Verification of BModes: Rotary Beam and Tower Modal Analysis Code; Preprint

    SciTech Connect (OSTI)

    Bir, G.

    2010-04-01T23:59:59.000Z

    This paper describes verification of BModes, a finite-element code developed to provide coupled modes for the blades and tower of a wind turbine. The blades, which may be rotating or non-rotating, and the towers, whether onshore or offshore, are modeled using specialized 15-dof beam finite elements. Both blade and tower models allow a tip attachment, which is assumed to be rigid body with six moments of inertia, and a mass centroid that may be offset from the blade or tower axis. Examples of tip attachments are aerodynamic brakes for blades and nacelle-rotor subassembly for towers. BModes modeling allows for tower supports including tension wires, floating platforms, and monopiles on elastic foundations. Coupled modes (implying coupling of flap, lag, axial, and torsional motions) are required for modeling major flexible components in a modal-based, aeroelastic code such as FAST1. These are also required for validation of turbine models using experimental data, modal-based fatigue analysis, controls design, and understanding aeroelastic-stability behavior of turbines. Verification studies began with uniform tower models, with and without tip inertia, and progressed to realistic towers. For the floating turbine, we accounted for the effects of hydrodynamic inertia, hydrostatic restoring, and mooring lines stiffness. For the monopole-supported tower, we accounted for distributed hydrodynamic mass on the submerged part of the tower and for distributed foundation stiffness. Finally, we verified a model of a blade carrying tip mass and rotating at different speeds (verifications of other blade models, rotating or non-rotating, have been reported in another paper.) Verifications were performed by comparing BModes-generated modes with analytical results, if available, or with MSC.ADAMS results. All results in general show excellent agreement.

  7. Dynamic response of guyed towers

    E-Print Network [OSTI]

    Gillcrist, Mark Christopher

    1984-01-01T23:59:59.000Z

    also account for entrapped sea water in the tower legs as well as added hydrodynamic mass. Sarpkya and Isaacson (9) show that the added hydrodynamic mass, m , per unit length of a circular cylinder can be closely approximated by m = psr 2 a (3. 1... bending associated with the guyed tower's fundamental mode. The global damping matrix, used in this study, is assumed to account for all sources of damping, with the exception of hydrodynamic damping (implicit in the nonlinear drag term of Morison...

  8. CSP Tower Air Brayton Combustor

    Broader source: Energy.gov [DOE]

    This fact sheet describes a concentrating solar power tower air Brayton combustor project awarded under the DOE's 2012 SunShot CSP R&D award program. The team, led by the Southwest Research Institute, is working to develop an external combustor that allows for the mixing of CSP-heated air with natural gas in hybridized power plants. This project aims to increase the temperature capabilities of the CSP tower air receiver and gas turbine to 1,000ºC and achieve energy conversion efficiencies greater than 50%.

  9. See the UT Tower going dark? There's a reason why Tower joins campus in conservation project

    E-Print Network [OSTI]

    Johnston, Daniel

    See the UT Tower going dark? There's a reason why Tower joins campus in conservation project KXAN orange or even its typical white, the University of Texas Tower will join the dark night sky as part of a campus-wide energy conservation project. This is the first time the Tower will take part in Longhorn

  10. RUDDER TOWER: You are standing in the lobby of Rudder Tower, home to the Appelt

    E-Print Network [OSTI]

    RUDDER TOWER: You are standing in the lobby of Rudder Tower, home to the Appelt Aggieland Visitor Center. The lobby elevators take you up Rudder Tower, where the office of the president of Texas A to the Plaza, you'll be facing Albritton Tower in the distance; you will hear its Westminster chimes ring every

  11. Livingston Campus North and South Tower

    E-Print Network [OSTI]

    Livingston Campus North and South Tower General Instructions: · Print directions and name.7 miles). Continue on Route 18 North. · Follow the signs for Towers move in. From Garden State Parkway the Raritan River (approximately 3.7 miles). Continue on Route 18 North. · Follow the signs for Towers move in

  12. Wind-Wildlife Impacts Literature Database (WILD)(Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01T23:59:59.000Z

    The Wind-Wildlife Impacts Literature Database (WILD), developed and maintained by the National Wind Technology Center (NWTC) at the National Renewable Energy Laboratory (NREL), is comprised of over 1,000 citations pertaining to the effects of land-based wind, offshore wind, marine and hydrokinetic, power lines, and communication and television towers on wildlife.

  13. Quantifying the hurricane risk to offshore wind turbines

    E-Print Network [OSTI]

    Jaramillo, Paulina

    Quantifying the hurricane risk to offshore wind turbines Stephen Rosea , Paulina Jaramilloa,1. Turbine tower buckling has been observed in typhoons, but no offshore wind turbines have yet been built be destroyed by hurricanes in an offshore wind farm. We apply this model to estimate the risk to offshore wind

  14. Cooling Tower Inspection with Scuba

    E-Print Network [OSTI]

    Brenner, W.

    1982-01-01T23:59:59.000Z

    tower pump suction basin was accomplished by diving into the basin using SCUBA gear. It was possible to see a build-up of debris on the pump suction basket strainers and on the floor of the sumps. Also, it was discovered that one of the four baskets had...

  15. FLUX MEASUREMENTS FROM A TALL TOWER IN A COMPLEX LANDSCAPE

    SciTech Connect (OSTI)

    Kurzeja, R.; Weber, A.; Chiswell, S.; Parker, M.

    2010-07-22T23:59:59.000Z

    The accuracy and representativeness of flux measurements from a tall tower in a complex landscape was assessed by examining the vertical and sector variability of the ratio of wind speed to momentum flux and the ratio of vertical advective to eddy flux of heat. The 30-60 m ratios were consistent with theoretical predictions which indicate well mixed flux footprints. Some variation with sector was observed that were consistent with upstream roughness. Vertical advection was negligible compared with vertical flux except for a few sectors at night. This implies minor influence from internal boundary layers. Flux accuracy is a function of sector and stability but 30-60 m fluxes were found to be generally representative of the surrounding landscape. This paper will study flux data from a 300 m tower, with 4 levels of instruments, in a complex landscape. The surrounding landscape will be characterized in terms of the variation in the ratio of mean wind speed to momentum flux as a function of height and wind direction. The importance of local advection will be assessed by comparing vertical advection with eddy fluxes for momentum and heat.

  16. Stability and Turbulence in the Atmospheric Boundary Layer: A Comparison of Remote Sensing and Tower Observations

    SciTech Connect (OSTI)

    Friedrich, K.; Lundquist, J. K.; Aitken, M.; Kalina, E. A.; Marshall, R. F.

    2012-01-01T23:59:59.000Z

    When monitoring winds and atmospheric stability for wind energy applications, remote sensing instruments present some advantages to in-situ instrumentation such as larger vertical extent, in some cases easy installation and maintenance, measurements of vertical humidity profiles throughout the boundary layer, and no restrictions on prevailing wind directions. In this study, we compare remote sensing devices, Windcube lidar and microwave radiometer, to meteorological in-situ tower measurements to demonstrate the accuracy of these measurements and to assess the utility of the remote sensing instruments in overcoming tower limitations. We compare temperature and wind observations, as well as calculations of Brunt-Vaisala frequency and Richardson numbers for the instrument deployment period in May-June 2011 at the U.S. Department of Energy National Renewable Energy Laboratory's National Wind Technology Center near Boulder, Colorado. The study reveals that a lidar and radiometer measure wind and temperature with the same accuracy as tower instruments, while also providing advantages for monitoring stability and turbulence. We demonstrate that the atmospheric stability is determined more accurately when the liquid-water mixing ratio derived from the vertical humidity profile is considered under moist-adiabatic conditions.

  17. 24 m meteorological tower data report period: January through December, 1996

    SciTech Connect (OSTI)

    Freeman, D.; Bowen, J.; Egami, R.; Coulombe, W.; Crow, D.; Cristani, B.; Schmidt, S.

    1997-12-01T23:59:59.000Z

    This report was prepared by the Desert Research Institute (DRI) for the US Department of Energy (DOE). It summarizes meteorological data collected at the 24 meter tower at the Nevada Test Site Hazardous Material Spill Center (HAZMAT) located at Frenchman Flat near Mercury, Nevada, approximately 75 miles northwest of Las Vegas, Nevada. The tower was originally installed in July, 1993 to characterize baseline conditions for an EPA sponsored experimental research program at the HAZMAT. This report presents results of the monitoring for January--December, 1996, providing: a status of the measurement systems during the report period and a summary of the meteorological conditions at the HAZMAT during the report period. The scope of the report is limited to summary data analyses and does not include extensive meteorological analysis. The tower was instrumented at 8 levels. Wind speed, wind direction, and temperature were measured at all 8 levels. Relative humidity was measured at 3 levels. Solar and net radiation were measured at 2 meters above the ground. Barometric pressure was measured at the base of the tower and soil temperature was measured near the base of the tower.

  18. Cooling Towers--Energy Conservation Strategies 

    E-Print Network [OSTI]

    Matson, J.

    1991-01-01T23:59:59.000Z

    COOLING TOWERS -- ENERGY CONSERVATION STRATEGIES Cooling Water Optimization Dr. JACK MATSON Environmental Engg. Dept. University of Houston Houston, Texas A cooling water system can be optimized by operating the cooling tower... pressures on generating turbines and all of the good things listed above can be achieved with a well upgraded modernized cooling tower, but if minimum or no attention is paid to the water chemistry, poor performance, and loss of energy and dollar...

  19. Cooling Tower Considerations for Energy Optimizations

    E-Print Network [OSTI]

    Burger, R.

    1986-01-01T23:59:59.000Z

    accumulat- ing in the strainers and tubes. The California Redwood Institute states that the service life of thin section Redwood used in cooling towers .is a'pproximately 15 to 20 years. Therefore, in these older-type towers the fill Is usually... of the art cellular film fill packing. Figure 6. Eight cell blow-thru tower where rebuilding lowered the water temperature 4OF greatly reducing compressor head pressures and temperatures thereby lowering energy consumption throughout the system...

  20. INL Wind Farm Project Description Document

    SciTech Connect (OSTI)

    Gary Siefert

    2009-07-01T23:59:59.000Z

    The INL Wind Farm project proposes to install a 20 MW to 40 MW wind farm on government property, consisting of approximately ten to twenty full-sized (80-meter hub height) towers with 2 MW turbines, and access roads. This includes identifying the optimal turbine locations, building access roads, and pouring the tower foundations in preparation for turbine installation. The project successfully identified a location on INL lands with commercially viable wind resources (i.e., greater than 11 mph sustained winds) for a 20 to 40 MW wind farm. Additionally, the proposed Wind Farm was evaluated against other General Plant Projects, General Purpose Capital Equipment projects, and Line Item Construction Projects at the INL to show the relative importance of the proposed Wind Farm project.

  1. Pueblo Towers | 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 Jump to:ID8/OrganizationTechProbSolutionsPublic ArtTexas Jump to:Towers Jump to:

  2. Wind turbine spoiler

    DOE Patents [OSTI]

    Sullivan, William N. (Albuquerque, NM)

    1985-01-01T23:59:59.000Z

    An aerodynamic spoiler system for a vertical axis wind turbine includes spoilers on the blades initially stored near the rotor axis to minimize drag. A solenoid latch adjacent the central support tower releases the spoilers and centrifugal force causes the spoilers to move up the turbine blades away from the rotor axis, thereby producing a braking effect and actual slowing of the associated wind turbine, if desired. The spoiler system can also be used as an infinitely variable power control by regulated movement of the spoilers on the blades over the range between the undeployed and fully deployed positions. This is done by the use of a suitable powered reel and cable located at the rotor tower to move the spoilers.

  3. Engine Friction Reduction Through Surface Finish and Coatings...

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

    Friction Reduction Through Surface Finish and Coatings Engine Friction Reduction Through Surface Finish and Coatings Opportunities exist for friction reduction in piston rings and...

  4. Y-12 Finishes Initial HEUMF Loading Ahead of Schedule | National...

    National Nuclear Security Administration (NNSA)

    Home Field Offices Welcome to the NNSA Production Office NPO News Releases Y-12 Finishes Initial HEUMF Loading Ahead of Schedule Y-12 Finishes Initial HEUMF Loading...

  5. Out of Ashes and Rubble: The Pirelli Tower

    E-Print Network [OSTI]

    Ziegler, Claudia J.

    2009-01-01T23:59:59.000Z

    Agnese’s text. 13. The Pirelli tower was novel, experimentalpostwar periods, or that the tower was a departure from theand Rubble: The Pirelli Tower Claudia J. Ziegler At the end

  6. Session: What have studies of communications towers suggested regarding the impact of guy wires and lights on birds and bats

    SciTech Connect (OSTI)

    Kerlinger, Paul

    2004-09-01T23:59:59.000Z

    This session at the Wind Energy and Birds/Bats workshop consisted of one presentation followed by a discussion/question and answer period. The paper ''Wind turbines and Avian Risk: Lessons from Communications Towers'' was given by Paul Kerlinger. The presenter outlined lessons that have been learned from research on communications (not cell) towers and about the impacts of guy wires and lights on birds and bats and how they could be useful to wind energy developers. The paper also provided specific information about a large 'fatality' event that occurred at the Mountaineer, WC wind energy site in May 2003, and a table of Night Migrant Carcass search findings for various wind sites in the US.

  7. AIAA-2004-1184 AN AEROACOUSTIC ANALYSIS OF WIND TURBINES*

    E-Print Network [OSTI]

    , the wind turbine blades can experience large changes in angle of attack associated with sudden large gusts, horizontal axis wind turbines. These blade/inflow/tower wake interactions can result in dynamic stall overAIAA-2004-1184 1 AN AEROACOUSTIC ANALYSIS OF WIND TURBINES* Philip J. Morris, Lyle N. Long

  8. Hard Bottom Substrate Monitoring Horns Rev Offshore Wind Farm

    E-Print Network [OSTI]

    #12;Hard Bottom Substrate Monitoring Horns Rev Offshore Wind Farm 2004 Survey Report No. 1 March protection and at the wind turbine towers at six turbine sites. Video recordings were planned at different- scription. 2. Methodology Weather and wind conditions as well as hydrographical data such as current

  9. Microsoft Word - idaho_wind_speed_summary.doc

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

    Ft. Hall, ID Sites Wheat Grass Ridge Average Wind Speeds Site 0001 (66 ft. (20m) tower, erected week of 11101, data started on 11201) N. 42 deg. 44.762', W. 112 deg. 41.011'...

  10. Bassett Mechanical Explores Mid-size Wind Market

    Broader source: Energy.gov [DOE]

    About five years ago, Wisconsin’s Bassett Mechanical began branching into renewable energy. The nearly 75-year-old company started producing components used to anchor the towers of wind turbines to their foundations.

  11. Microsoft Word - utah_wind_speed_summary.doc

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

    02 - 110502) 10.6 mph Overall Average (120101 - 110502) 7.8 mph Dean Davis Site Spanish Fork, Utah Average Wind Speeds Site 0009 (66 ft. (20m) tower, data started on 1101...

  12. Coupled Dynamic Analysis of Multiple Unit Floating Offshore Wind Turbine

    E-Print Network [OSTI]

    Bae, Yoon Hyeok

    2013-04-23T23:59:59.000Z

    In the present study, a numerical simulation tool has been developed for the rotor-floater-tether coupled dynamic analysis of Multiple Unit Floating Offshore Wind Turbine (MUFOWT) in the time domain including aero-blade-tower dynamics and control...

  13. Coupled Dynamic Analysis of Multiple Unit Floating Offshore Wind Turbine 

    E-Print Network [OSTI]

    Bae, Yoon Hyeok

    2013-04-23T23:59:59.000Z

    In the present study, a numerical simulation tool has been developed for the rotor-floater-tether coupled dynamic analysis of Multiple Unit Floating Offshore Wind Turbine (MUFOWT) in the time domain including aero-blade-tower dynamics and control...

  14. NCMS PWB Surface Finishes Team project summary

    SciTech Connect (OSTI)

    Kokas, J.; DeSantis, C. [United Technologies Corp., Farmington, CT (United States). Hamilton Standard Div.; Wenger, G. [AT and T, New York, NY (United States)] [and others

    1996-04-01T23:59:59.000Z

    The NCMS PWB Surface Finishes Consortium is just about at the end of the five year program. Dozens of projects related to surface finishes and PWB solder-ability were performed by the team throughout the program, and many of them are listed in this paper. They are listed with a cross reference to where and when a technical paper was presented describing the results of the research. However, due to time and space constraints, this paper can summarize the details of only three of the major research projects accomplished by the team. The first project described is an ``Evaluation of PWB Surface Finishes.`` It describes the solderability, reliability, and wire bondability of numerous surface finishes. The second project outlined is an ``Evaluation of PWB Solderability Test Methods.`` The third project outlined is the ``Development and Evaluation of Organic Solderability Preservatives.``

  15. Wind shear climatology for large wind turbine generators

    SciTech Connect (OSTI)

    Elliott, D.L.; Wendell, L.L.; Heflick, S.K.

    1982-10-01T23:59:59.000Z

    Climatological wind shear analyses relevant to the design and operation of multimegawatt wind turbines are provided. Insight is provided for relating the wind experienced by a rotating blade in a shear flow to the analysis results. A simple analysis of the wind experienced by a rotating blade for three types of wind shear profiles under steady-state conditions is presented in graphical form. Comparisons of the magnitude and frequency of the variations in 1) the wind sensed by a single blade element, 2) the sum, and 3) the difference of the winds sensed by opposite blade elements show strong sensitivity to profile shape. These three items represent forcing functions that can be related to 1) flatwise bending moment, 2) torque on the shaft, and 3) teeter angle. A computer model was constructed to simulate rotational sampling of 10-s sampled winds from a tall tower for three different types of large wind turbines. Time series produced by the model indicated that the forcing functions on a rotating blade vary according to the shear profile encountered during each revolution as opposed to a profile derived from average wind conditions, e.g., hourly average winds. An analysis scheme was developed to establish a climatology of wind shear profiles derived from 10-s sampled winds and hourly average winds measured over a one-year period at several levels on a tall tower. Because of the sensitivity of the forcing function variability to profile shape, the analyses performed and presented are in the form of joint frequency distributions of velocity differences of the the top-to-hub versus the hub-to-bottom portion of disks of rotation for the three turbine configurations.

  16. Wind turbine/generator set and method of making same

    DOE Patents [OSTI]

    Bevington, Christopher M.; Bywaters, Garrett L.; Coleman, Clint C.; Costin, Daniel P.; Danforth, William L.; Lynch, Jonathan A.; Rolland, Robert H.

    2013-06-04T23:59:59.000Z

    A wind turbine comprising an electrical generator that includes a rotor assembly. A wind rotor that includes a wind rotor hub is directly coupled to the rotor assembly via a simplified connection. The wind rotor and generator rotor assembly are rotatably mounted on a central spindle via a bearing assembly. The wind rotor hub includes an opening having a diameter larger than the outside diameter of the central spindle adjacent the bearing assembly so as to allow access to the bearing assembly from a cavity inside the wind rotor hub. The spindle is attached to a turret supported by a tower. Each of the spindle, turret and tower has an interior cavity that permits personnel to traverse therethrough to the cavity of the wind rotor hub. The wind turbine further includes a frictional braking system for slowing, stopping or keeping stopped the rotation of the wind rotor and rotor assembly.

  17. Wind turbine having a direct-drive drivetrain

    DOE Patents [OSTI]

    Bevington, Christopher M.; Bywaters, Garrett L.; Coleman, Clint C.; Costin, Daniel P.; Danforth, William L.; Lynch, Jonathan A.; Rolland, Robert H.

    2011-02-22T23:59:59.000Z

    A wind turbine comprising an electrical generator that includes a rotor assembly. A wind rotor that includes a wind rotor hub is directly coupled to the rotor assembly via a simplified connection. The wind rotor and generator rotor assembly are rotatably mounted on a central spindle via a bearing assembly. The wind rotor hub includes an opening having a diameter larger than the outside diameter of the central spindle adjacent the bearing assembly so as to allow access to the bearing assembly from a cavity inside the wind rotor hub. The spindle is attached to a turret supported by a tower. Each of the spindle, turret and tower has an interior cavity that permits personnel to traverse therethrough to the cavity of the wind rotor hub. The wind turbine further includes a frictional braking system for slowing, stopping or keeping stopped the rotation of the wind rotor and rotor assembly.

  18. Wind Monitoring Report for Fort Wainwright's Donnelly Training Area

    SciTech Connect (OSTI)

    Orrell, Alice C.; Dixon, Douglas R.

    2011-01-18T23:59:59.000Z

    Using the wind data collected at a location in Fort Wainwright’s Donnelly Training Area (DTA) near the Cold Regions Test Center (CRTC) test track, Pacific Northwest National Laboratory (PNNL) estimated the gross and net energy productions that proposed turbine models would have produced exposed to the wind resource measured at the meteorological tower (met tower) location during the year of measurement. Calculations are based on the proposed turbine models’ standard atmospheric conditions power curves, the annual average wind speeds, wind shear estimates, and standard industry assumptions.

  19. Role of Wind in Vernacular Architecture of Hot and Humid Region of Iran 

    E-Print Network [OSTI]

    Najafabadi, R. A.; Daneshvar, K.; Pakseresht, K.; Pooryousefzadeh, S.

    2006-01-01T23:59:59.000Z

    the structure, and whose projecting ends were usually left to serve as scaffolding for cleaning and maintenance (figure 7). Figure 7- Plan of wind tower shows an X configuration. Wind towers are often classified by the number of directions from...ROLE OF WIND IN VERNACULAR ARCHITECTURE OF HOT AND HUMID REGION OF IRAN RAHMAN AZARI NAJAFABADI ACADEMIC STAFF STUDENT KIMIYA DANESHVAR SAHAR PAKSERESHT SARA POORYOUSEFZADEH STUDENT STUDENT ART...

  20. Optimal sequencing of a cooling tower with multiple cells

    E-Print Network [OSTI]

    Zhang, Z.; Liu, J.

    2012-01-01T23:59:59.000Z

    This paper evaluates the energy savings potential of multi-cell cooling tower optimal sequencing control methods. Annual tower fan energy usage is calculated for a counter-flow tower with multiple variable-speed fans. Effectiveness-NTU tower model...

  1. THE GROUP OF SYMMETRIES OF THE TOWER OF HANOI GRAPH

    E-Print Network [OSTI]

    Behrstock, Jason

    THE GROUP OF SYMMETRIES OF THE TOWER OF HANOI GRAPH SO EUN PARK The classical Tower of Hanoi puzzle the tower of disks to another peg, moving one topmost disk at a time while never stacking a disk referred to as the Tower of Hanoi problem. Figure 1. Convention for labeling k pegs and n disks

  2. Charlotte Teachers' Circle September 17, 2011 Tower of Hanoi

    E-Print Network [OSTI]

    Reiter, Harold

    1 Charlotte Teachers' Circle September 17, 2011 Tower of Hanoi The Tower of Hanoi as the Tower of Brahma. According to the legend, when the last move of the puzzle is completed, the world of the three pegs. The objective of the puzzle is to move the entire tower to one of the other pegs

  3. A New Tower Over Cubic Finite Fields , Arnaldo Garcia

    E-Print Network [OSTI]

    Yanikoglu, Berrin

    A New Tower Over Cubic Finite Fields Alp Bassa , Arnaldo Garcia and Henning Stichtenoth We present a new explicit tower of function fields (Fn)n0 over the finite field with = q3 elements, where the limit). This tower contains as a subtower the tower which was introduced by Bezerra­ Garcia­Stichtenoth (see [3

  4. Description of the Columbia Basin Wind Energy Study (CBWES)

    SciTech Connect (OSTI)

    Berg, Larry K.; Pekour, Mikhail S.; Nelson, Danny A.

    2012-10-01T23:59:59.000Z

    The purpose of this Technical Report is to provide background information about the Columbia Basin Wind Energy Study (CBWES). This study, which was supported by the U.S. Department of Energy’s Wind and Water Power Program, was conducted from 16 November 2010 through 21 March 2012 at a field site in northeastern Oregon. The primary goal of the study was to provide profiles of wind speed and wind direction over the depth of the boundary layer in an operating wind farm located in an area of complex terrain. Measurements from propeller and vane anemometers mounted on a 62 m tall tower, Doppler Sodar, and Radar Wind Profiler were combined into a single data product to provide the best estimate of the winds above the site during the first part of CBWES. An additional goal of the study was to provide measurements of Turbulence Kinetic Energy (TKE) near the surface. To address this specific goal, sonic anemometers were mounted at two heights on the 62 m tower on 23 April 2011. Prior to the deployment of the sonic anemometers on the tall tower, a single sonic anemometer was deployed on a short tower 3.1 m tall that was located just to the south of the radar wind profiler. Data from the radar wind profiler, as well as the wind profile data product are available from the Atmospheric Radiation Measurements (ARM) Data Archive (http://www.arm.gov/data/campaigns). Data from the sonic anemometers are available from the authors.

  5. Advanced wet-dry cooling tower concept

    E-Print Network [OSTI]

    Snyder, Troxell Kimmel

    The purpose of this years' work has been to test and analyze the new dry cooling tower surface previously developed. The model heat transfer test apparatus built last year has been instrumented for temperature, humidity ...

  6. Cooling Towers, The Neglected Energy Resource

    E-Print Network [OSTI]

    Burger, R.

    1985-01-01T23:59:59.000Z

    Loving care is paid to the compressors, condensers, and computer programs of refrigeration systems. When problems arise, operator: run around in circles with expensive "fixes", but historically ignore the poor orphan, the cooling tower perched...

  7. Cooling Towers--Energy Conservation Strategies

    E-Print Network [OSTI]

    Matson, J.

    A cooling water system can be optimized by operating the cooling tower at the highest possible cycles of concentration without risking sealing and fouling of heat exchanger surfaces, tube bundles, refrigeration equipment, overhead condensers...

  8. Projective preservation : reframing Rudolph's Tower for Boston

    E-Print Network [OSTI]

    Turner, Jessica K

    2012-01-01T23:59:59.000Z

    By 2012, the fate of Paul Rudolph's tower in downtown Boston has been in question for years while a vision of a denser city calls for its demolition. Projected development on the site currently argues that to move forward, ...

  9. Stability Properties of Magnetic Tower Jets

    E-Print Network [OSTI]

    Masanori Nakamura; Hui Li; Shengtai Li

    2006-08-31T23:59:59.000Z

    Stability properties of ``magnetic tower'' jets propagating in the gravitationally stratified background have been examined by performing three-dimensional magnetohydrodynamic simulations. The current-carrying, Poynting flux-dominated magnetic tower jet, which possesses a highly wound helical magnetic field, is subject to the current-driven instability (CDI). We find that, under general physical conditions including small perturbations in the initial background profiles, the propagating magnetic tower jets develop the non-axisymmetric, $m=1$ kink mode of the CDI. The kink mode grows on the local Alfv\\'en crossing time scale. In addition, two types of kink modes appear in the system. At the central region where external thermal pressure confinement is strong, only the internal kink mode is excited and will grow. A large distance away from the central region where the external thermal pressure becomes low, the external kink mode is observed. As a result, the exterior of magnetic tower jets will be deformed into a large-scale wiggled structure. We also discuss extensively the different physical processes that contribute to the overall stability properties of the magnetic tower jets. Specifically, when the jet propagates in an initially unperturbed background, we find that they can survive the kink mode beyond the point predicted by the well-known Kruskal-Shafranov (K-S) criterion. The stabilization in this case comes mainly from the dynamical relaxation of magnetic twists during the propagation of magnetic towers; the magnetic pitch is reduced and the corresponding K-S critical wavelength becomes longer as the tower jet proceeds. Furthermore, we show that the pressure-driven and Kelvin-Helmholtz instabilities do not occur in the magnetic tower jets.

  10. Wind Spires as an Alternative Energy Source

    SciTech Connect (OSTI)

    Majid Rashidi, Ph.D., P.E.

    2012-10-30T23:59:59.000Z

    This report discloses the design and development of an innovative wind tower system having an axisymmetric wind deflecting structure with a plurality of symmetrically mounted rooftop size wind turbines near the axisymmetric structure. The purpose of the wind deflecting structure is to increase the ambient wind speed that in turn results in an overall increase in the power capacity of the wind turbines. Two working prototypes were constructed and installed in the summer of 2009 and 2012 respectively. The system installed in the Summer of 2009 has a cylindrical wind deflecting structure, while the tower installed in 2012 has a spiral-shape wind deflecting structure. Each tower has 4 turbines, each rated at 1.65 KW Name-Plate-Rating. Before fabricating the full-size prototypes, computational fluid dynamic (CFD) analyses and scaled-down table-top models were used to predict the performance of the full-scale models. The performance results obtained from the full-size prototypes validated the results obtained from the computational models and those of the scaled-down models. The second prototype (spiral configuration) showed at a wind speed of 11 miles per hour (4.9 m/s) the power output of the system could reach 1,288 watt, when a typical turbine installation, with no wind deflecting structure, could produce only 200 watt by the same turbines at the same wind speed. At a wind speed of 18 miles per hour (8 m/sec), the spiral prototype produces 6,143 watt, while the power generated by the same turbines would be 1,412 watt in the absence of a wind deflecting structure under the same wind speed. Four US patents were allowed, and are in print, as the results of this project (US 7,540,706, US 7,679,209, US 7,845,904, and US 8,002,516).

  11. Coastal Ohio Wind Project

    SciTech Connect (OSTI)

    Gorsevski, Peter; Afjeh, Abdollah; Jamali, Mohsin; Bingman, Verner

    2014-04-04T23:59:59.000Z

    The Coastal Ohio Wind Project intends to address problems that impede deployment of wind turbines in the coastal and offshore regions of Northern Ohio. The project evaluates different wind turbine designs and the potential impact of offshore turbines on migratory and resident birds by developing multidisciplinary research, which involves wildlife biology, electrical and mechanical engineering, and geospatial science. Firstly, the project conducts cost and performance studies of two- and three-blade wind turbines using a turbine design suited for the Great Lakes. The numerical studies comprised an analysis and evaluation of the annual energy production of two- and three-blade wind turbines to determine the levelized cost of energy. This task also involved wind tunnel studies of model wind turbines to quantify the wake flow field of upwind and downwind wind turbine-tower arrangements. The experimental work included a study of a scaled model of an offshore wind turbine platform in a water tunnel. The levelized cost of energy work consisted of the development and application of a cost model to predict the cost of energy produced by a wind turbine system placed offshore. The analysis found that a floating two-blade wind turbine presents the most cost effective alternative for the Great Lakes. The load effects studies showed that the two-blade wind turbine model experiences less torque under all IEC Standard design load cases considered. Other load effects did not show this trend and depending on the design load cases, the two-bladed wind turbine showed higher or lower load effects. The experimental studies of the wake were conducted using smoke flow visualization and hot wire anemometry. Flow visualization studies showed that in the downwind turbine configuration the wake flow was insensitive to the presence of the blade and was very similar to that of the tower alone. On the other hand, in the upwind turbine configuration, increasing the rotor blade angle of attack reduced the wake size and enhanced the vortices in the flow downstream of the turbine-tower compared with the tower alone case. Mean and rms velocity distributions from hot wire anemometer data confirmed that in a downwind configuration, the wake of the tower dominates the flow, thus the flow fields of a tower alone and tower-turbine combinations are nearly the same. For the upwind configuration, the mean velocity shows a narrowing of the wake compared with the tower alone case. The downwind configuration wake persisted longer than that of an upwind configuration; however, it was not possible to quantify this difference because of the size limitation of the wind tunnel downstream of the test section. The water tunnel studies demonstrated that the scale model studies could be used to adequately produce accurate motions to model the motions of a wind turbine platform subject to large waves. It was found that the important factors that affect the platform is whether the platform is submerged or surface piercing. In the former, the loads on the platform will be relatively reduced whereas in the latter case, the structure pierces the wave free surface and gains stiffness and stability. The other important element that affects the movement of the platform is depth of the sea in which the wind turbine will be installed. Furthermore, the wildlife biology component evaluated migratory patterns by different monitoring systems consisting of marine radar, thermal IR camera and acoustic recorders. The types of radar used in the project are weather surveillance radar and marine radar. The weather surveillance radar (1988 Doppler), also known as Next Generation Radar (NEXRAD), provides a network of weather stations in the US. Data generated from this network were used to understand general migratory patterns, migratory stopover habitats, and other patterns caused by the effects of weather conditions. At a local scale our marine radar was used to complement the datasets from NEXRAD and to collect additional monitoring parameters such as passage rates, flight paths, flight directi

  12. CFD MODELING AND ANALYSIS FOR A-AREA AND H-AREA COOLING TOWERS

    SciTech Connect (OSTI)

    Lee, S.; Garrett, A.; Bollinger, J.

    2009-09-02T23:59:59.000Z

    Mechanical draft cooling towers are designed to cool process water via sensible and latent heat transfer to air. Heat and mass transfer take place simultaneously. Heat is transferred as sensible heat due to the temperature difference between liquid and gas phases, and as the latent heat of the water as it evaporates. Mass of water vapor is transferred due to the difference between the vapor pressure at the air-liquid interface and the partial pressure of water vapor in the bulk of the air. Equations to govern these phenomena are discussed here. The governing equations are solved by taking a computational fluid dynamics (CFD) approach. The purpose of the work is to develop a three-dimensional CFD model to evaluate the flow patterns inside the cooling tower cell driven by cooling fan and wind, considering the cooling fans to be on or off. Two types of the cooling towers are considered here. One is cross-flow type cooling tower located in A-Area, and the other is counterflow type cooling tower located in H-Area. The cooling tower located in A-Area is mechanical draft cooling tower (MDCT) consisting of four compartment cells as shown in Fig. 1. It is 13.7m wide, 36.8m long, and 9.4m high. Each cell has its own cooling fan and shroud without any flow communications between two adjacent cells. There are water distribution decks on both sides of the fan shroud. The deck floor has an array of about 25mm size holes through which water droplet falls into the cell region cooled by the ambient air driven by fan and wind, and it is eventually collected in basin area. As shown in Fig. 1, about 0.15-m thick drift eliminator allows ambient air to be humidified through the evaporative cooling process without entrainment of water droplets into the shroud exit. The H-Area cooling tower is about 7.3 m wide, 29.3 m long, and 9.0 m high. Each cell has its own cooling fan and shroud, but each of two corner cells has two panels to shield wind at the bottom of the cells. There is some degree of flow communications between adjacent cells through the 9-in gap at the bottom of the tower cells as shown in Fig. 2. Detailed geometrical dimensions for the H-Area tower configurations are presented in the figure. The model was benchmarked and verified against off-site and on-site test results. The verified model was applied to the investigation of cooling fan and wind effects on water cooling in cells when fans are off and on. This report will discuss the modeling and test results.

  13. Wind, Thermal, and Earthquake Monitoring of the Watts Towers

    E-Print Network [OSTI]

    English, Jackson

    2013-01-01T23:59:59.000Z

    Reston, VA. Applied Geomechanics (2001). “Model   716-2  biaxial tiltmeter (model 716-2B) from Applied Geomechanics (Applied Geomechanics, 2001), which is accurate down to

  14. Wind, Thermal, and Earthquake Monitoring of the Watts Towers

    E-Print Network [OSTI]

    English, Jackson

    2013-01-01T23:59:59.000Z

    Paradigm for Vibration-Based Structural Health Monitoring.Workshop on Structural Health Monitoring, Stanford, CA,Worden, K (2001) “Structural   Health   Monitoring   Using  

  15. Hydrogen Storage in Wind Turbine Towers: Cost Analysis and Conceptual

    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(Fact Sheet), GeothermalGridHYDROGEND D eReview |Panel HydrogenM M aDesign |

  16. Improved Microbe Assembly and Finishing Using 454 8kb Libraries

    SciTech Connect (OSTI)

    Buhay, Christian [Baylor College of Medicine's Human Genome Sequencing Center

    2010-06-03T23:59:59.000Z

    Christian Buhay from Baylor College of Medicine's Human Genome Sequencing Center discusses microbial genome finishing strategies on June 3, 2010 at the "Sequencing, Finishing, Analysis in the Future" meeting in Santa Fe, NM

  17. Establishing a Comprehensive Wind Energy Program

    SciTech Connect (OSTI)

    Fleeter, Sanford [Purdue University

    2012-09-30T23:59:59.000Z

    This project was directed at establishing a comprehensive wind energy program in Indiana, including both educational and research components. A graduate/undergraduate course ME-514 - Fundamentals of Wind Energy has been established and offered and an interactive prediction of VAWT performance developed. Vertical axis wind turbines for education and research have been acquired, instrumented and installed on the roof top of a building on the Calumet campus and at West Lafayette (Kepner Lab). Computational Fluid Dynamics (CFD) calculations have been performed to simulate these urban wind environments. Also, modal dynamic testing of the West Lafayette VAWT has been performed and a novel horizontal axis design initiated. The 50-meter meteorological tower data obtained at the Purdue Beck Agricultural Research Center have been analyzed and the Purdue Reconfigurable Micro Wind Farm established and simulations directed at the investigation of wind farm configurations initiated. The virtual wind turbine and wind turbine farm simulation in the Visualization Lab has been initiated.

  18. Economic assessment of small-scale electricity generation from wind

    E-Print Network [OSTI]

    McAllister, Kristen Dawn

    2007-09-17T23:59:59.000Z

    10 kW wind turbine on a 30m tower was installed and five different scenarios were calculated for both locations. Wind speeds for both locations were collected and analyzed to find the closest fitting distribution to incorporate the appropriate risk...

  19. Nearly Finished Genomes Produced Using Gel Microdroplet Culturing (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)

    ScienceCinema (OSTI)

    Fitzsimmons, Michael [LANL

    2013-01-25T23:59:59.000Z

    Michael Fitzsimmons from Los Alamos National Laboratory gives a talk titled "Nearly Finished Genomes Produced Using Gel Microdroplet Culturing" at the 7th Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting held in June, 2012 in Santa Fe, NM.

  20. Wind resource characterization results to support the Sandia Wind Farm Feasibility Study : August 2008 through March 2009.

    SciTech Connect (OSTI)

    Deola, Regina Anne

    2010-01-01T23:59:59.000Z

    Sandia National Laboratories Wind Technology Department is investigating the feasibility of using local wind resources to meet the requirements of Executive Order 13423 and DOE Order 430.2B. These Orders, along with the DOE TEAM initiative, identify the use of on-site renewable energy projects to meet specified renewable energy goals over the next 3 to 5 years. A temporary 30-meter meteorological tower was used to perform interim monitoring while the National Environmental Policy Act (NEPA) process for the larger Wind Feasibility Project ensued. This report presents the analysis of the data collected from the 30-meter meteorological tower.

  1. A feasibility study of wind turbine blade surface crack detection using an optical inspection method

    E-Print Network [OSTI]

    McCalley, James D.

    A feasibility study of wind turbine blade surface crack detection using an optical inspection technique was investigated to assess its ability to detect surface flaws on an on-tower wind turbine blade and investors. Rotor blades are one of the largest mechanical components of a wind turbine and cannot

  2. Wind Energy Opportunities, Challenges, and Progress Within the Federal Government (Poster)

    SciTech Connect (OSTI)

    Robichaud, R.

    2009-05-01T23:59:59.000Z

    Wind Powering America (WPA) works with Federal agencies to increase their understanding of wind resources and assessment; facilitate project development activities through Met tower loans, wind data analysis, and technical assistance; and provide advice on RFP development and financing options. This poster provides an overview of WPA's activities with the federal sector.

  3. Conceptual Design of Floating Wind Turbines with Large-Amplitude Motion

    E-Print Network [OSTI]

    Sweetman, Bert

    the wind and water are included in the calculation of environmental forcing, such that the nonlinear horizontal wind force at the 77.6-m tall tower. Additional angular stability is provided through use for the same wind force. The increase in lean introduces some reduction in efficiency of energy harvesting

  4. Influences of offshore environmental conditions on wind shear profile parameters in Nantucket Sound

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Influences of offshore environmental conditions on wind shear profile parameters in Nantucket Sound@ecs.umass.edu ABSTRACT Simultaneous wind resource and oceanographic data are available from an offshore monitoring tower how oceanographic data can be used to aid offshore wind resource assessment evaluations. This study

  5. Digital places : rethinking urban elements : the case of the tower

    E-Print Network [OSTI]

    Gichuhi, Christopher M. (Christopher Mwethera), 1976-

    2004-01-01T23:59:59.000Z

    Problem - How can we make working, living and all aspects of our life in the urban tower more palatable? How can we create environment at the urban tower scale. With technology as one of the biggest drivers of social and ...

  6. Perspective on plating for precision finishing

    SciTech Connect (OSTI)

    Dini, J.W.

    1991-04-01T23:59:59.000Z

    This paper is intended as an overview on platings for precision finishing operations. After a brief review of the two processes (polishing and precision machining) by which a coating on a part can be converted to a precision surface, the coatings which work successfully in these applications will be discussed. Then adhesion and stress aspects of deposits will be covered. Electroless nickel, which is a particularly attractive coating for precision finishing applications, will be discussed in some detail, from its early years as the Kanigen'' process to the present. Since microstructural changes in deposits are important for precision parts, this aspect will be covered for electroless nickel, copper and silver deposits. Lastly, some words will be directed at potential future electrodeposited coatings including nickel-phosphorus alloys, and various silver alloys. 41 refs., 16 figs., 1 tab.

  7. Broken Bar Detection in Synchronous Machines Based Wind Energy Conversion System

    E-Print Network [OSTI]

    Rahimian, Mina Mashhadi

    2012-10-19T23:59:59.000Z

    at extremely high towers and therefore inaccessible. For offshore plants, bad weather can prevent any repair actions for several weeks. In some of the new wind turbines synchronous generators are used and directly connected to the grid without the need...

  8. Boise Air Traffic Control Tower: High Performance and sustainable Building Guiding Principles Technical Assistance

    SciTech Connect (OSTI)

    Fowler, Kimberly M.; Goel, Supriya; Henderson, Jordan W.

    2013-09-01T23:59:59.000Z

    Overview of energy efficiency opportunities for new FAA tower construction using the Boise Air Traffic Control Tower as an example.

  9. Bankers in the Ivory Tower: The Financialization of Governance at the University of California

    E-Print Network [OSTI]

    Eaton, Charlie; Goldstein, Adam; Habinek, Jacob; Kumar, Mukul; Stover, Tamera Lee; Roehrkasse, Alex

    2013-01-01T23:59:59.000Z

    Bankers in the Ivory Tower: The Financialization ofBankers in the Ivory Tower: The Financialization of

  10. Wearability of Portland Cement Concrete Pavement Finishes

    E-Print Network [OSTI]

    McKeen, William Rew

    1971-01-01T23:59:59.000Z

    Major Subject: Civil Engineering NEARABILITY OF PORTLAND CENENT CONCRETE PAPFNENT FIVISNFS A Thesis by Nilliam Rem NcKeen Approved as to style and content by: (Chairman of Committ e) (Nember) August 1971 ABSTRACT Hearabil'tv of Portland Cement... portland cement, and an air entrainment admixture. Standard laboratory tests were performed on all aggregates to determine their properties. iv The test specimens were molded in a controlled environmental room and the anpropriate surface finish (burlap...

  11. Structural Optimization of High Voltage Transmission Line Towers considering

    E-Print Network [OSTI]

    Colominas, Ignasi

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

  12. MARTIN'S MAXIMUM AND TOWER FORCING SEAN COX AND MATTEO VIALE

    E-Print Network [OSTI]

    Viale, Matteo

    MARTIN'S MAXIMUM AND TOWER FORCING SEAN COX AND MATTEO VIALE Abstract. There are several examples, the Reflection Princi- ple (RP) implies that if I is a tower of ideals which concentrates on the class GIC1 of 1 [16], shows that if PFA+ or MM holds and there is an inaccessible cardinal, then there is a tower

  13. About the Design & Construction Collaborative Life Sciences Building & Skourtes Tower

    E-Print Network [OSTI]

    Chapman, Michael S.

    About the Design & Construction Collaborative Life Sciences Building & Skourtes Tower Life Sciences Building & Skourtes Tower (CLSB) is an innovative model for health sciences education intention. The building's volumes--the 12-story north tower and the five-story south wing--are connected

  14. 30TH INTERNATIONAL COSMIC RAY CONFERENCE The TALE Tower Detector

    E-Print Network [OSTI]

    30TH INTERNATIONAL COSMIC RAY CONFERENCE The TALE Tower Detector D. R. BERGMAN1 , FOR THE TA and extend the range of its energy coverage to lower energies. One of the TALE detectors is a "tower cosmic rays with energies between 1016.5 and 1018 eV. To achieve this low-energy sensitivity the tower

  15. Muirhead Tower Atrium 9 January17 May 2013

    E-Print Network [OSTI]

    Birmingham, University of

    Muirhead Tower Atrium 9 January­17 May 2013 Weekdays 9am­6pm William Morris and the Kelmscott Press Morris died. Muirhead Tower Atrium, 9 January­17 May 2013 Twitter: @CadburyRL See more exhibitions from Muirhead Tower, Lower Ground Floor University of Birmingham, B15 2TT E: special-collections@bham.ac.uk T

  16. Tower Foundation of SJSU Procurement Card Program Policies & Procedures

    E-Print Network [OSTI]

    Eirinaki, Magdalini

    Tower Foundation of SJSU Procurement Card Program Policies & Procedures General Information Overview of Program The Tower Foundation ProCard program has been implemented to provide easy be an authorized signer on the Tower account. Purchases made with the ProCard are billed to Approving Official

  17. THE TOWER AT THE END OF COMMENCEMENT, 2006 THE GENERAL

    E-Print Network [OSTI]

    Texas at Austin, University of

    THE TOWER AT THE END OF COMMENCEMENT, 2006 THE GENERAL UNIVERSITY OF TEXAS INFORMATION AT AUSTIN O Box 7216, Austin TX 78713- 7216. Cover: The Tower at the conclusion of Commencement 2006 of the Tower and celebrated with a fireworks display and light show. Issue Number 2006/5 August 2006

  18. The Albany Particle Tower: Online Access for High School Students

    E-Print Network [OSTI]

    Cinabro, David

    The Albany Particle Tower: Online Access for High School Students Kristen Melnyk­Elsner Kimball education outreach program, the Albany Particle Tower (APT) has been made available online to students who to run the detector and analyze real time data. Introduction The Albany Particle Tower is a Cosmic Ray

  19. Role of Wind in Vernacular Architecture of Hot and Humid Region of Iran

    E-Print Network [OSTI]

    Najafabadi, R. A.; Daneshvar, K.; Pakseresht, K.; Pooryousefzadeh, S.

    2006-01-01T23:59:59.000Z

    the total framework which underlies architecture. Vernacular architecture in hot and humid regions of Iran has strong bonds with local climate. Shenasil, Taremi and Wind towers are the features that have developed according to climatic considerations... of different climatic elements on the vernacular architecture with a focus on humidity and air currents. Then, natural ventilation and the architectural elements involving it will be discussed. Finally, the wind towers of the region...

  20. Cooling Towers--Energy Conservation Strategies Preservative Spray Treatment Maintains Cooling Tower

    E-Print Network [OSTI]

    Reidenback, R.

    Several problems common to most industrial wood framed cooling towers can be easily controlled with annual preservative spray treatment applications to the plenum area framework and drift eliminators. It eliminates the expensive periodic repairs due...

  1. Untapped Energy Savings from Cooling Towers

    E-Print Network [OSTI]

    Phelps Jr., P.

    2011-01-01T23:59:59.000Z

    A cooling tower is often an overlooked source of easy energy savings. As long as it's running not much thought is usually given to it, but when numbers are applied to how much a degree of colder water is worth it can become a valuable and ready...

  2. Reliability Analysis of Cooling Towers: Influence of Rebars Corrosion on Failure

    SciTech Connect (OSTI)

    Sudret, Bruno [Electricite de France - EDF, Research and Development Division, Dpt of Materials and Mechanics of Components, Site des Renardieres, 77818 Moret-sur-Loing Cedex (France); Pendola, Maurice [PHI-MECA Engineering, 1 Allee Alan Turing, 63170 - Aubiere (France)

    2002-07-01T23:59:59.000Z

    Natural-draught cooling towers are used in nuclear power plants as heat exchangers. These structures are submitted to environmental loads such as wind and thermal gradients that are stochastic in nature. A probabilistic framework has been developed by EDF (Electricite de France) for assessing the durability of such structures. In this paper, the corrosion of the rebars due to concrete carbonation and the corresponding weakening of the reinforced concrete sections is considered. Due to the presence of time in the definition of the limit state function associated with the loss of serviceability of the cooling tower, time-variant reliability analysis has to be used. A novel approach is proposed to take into account the random 'initiation time', which corresponds to the time necessary for the carbonation to attain the rebars. Results are given in terms of the probability of failure of the structure over its life time. (authors)

  3. Wind Generation on Winnebago Tribal Lands

    SciTech Connect (OSTI)

    Multiple

    2009-09-30T23:59:59.000Z

    The Winnebago Wind Energy Study evaluated facility-scale, community-scale and commercial-scale wind development on Winnebago Tribal lands in northeastern Nebraska. The Winnebago Tribe of Nebraska has been pursuing wind development in various forms for nearly ten years. Wind monitoring utilizing loaned met towers from NREL took place during two different periods. From April 2001 to April 2002, a 20-meter met tower monitored wind data at the WinnaVegas Casino on the far eastern edge of the Winnebago reservation in Iowa. In late 2006, a 50-meter tower was installed, and subsequently monitored wind data at the WinnaVegas site from late 2006 through late 2008. Significant challenges with the NREL wind monitoring equipment limited the availability of valid data, but based on the available data, average wind speeds between 13.6 – 14.3 miles were indicated, reflecting a 2+/3- wind class. Based on the anticipated cost of energy produced by a WinnaVegas wind turbine, and the utility policies and rates in place at this time, a WinnaVegas wind project did not appear to make economic sense. However, if substantial grant funding were available for energy equipment at the casino site, and if either Woodbury REC backup rates were lower, or NIPCO was willing to pay more for wind power, a WinnaVegas wind project could be feasible. With funding remaining in the DOE-funded project budget,a number of other possible wind project locations on the Winnebago reservation were considered. in early 2009, a NPPD-owned met tower was installed at a site identified in the study pursuant to a verbal agreement with NPPD which provided for power from any ultimately developed project on the Western Winnebago site to be sold to NPPD. Results from the first seven months of wind monitoring at the Western Winnebago site were as expected at just over 7 meters per second at 50-meter tower height, reflecting Class 4 wind speeds, adequate for commercial development. If wind data collected in the remaining months of the twelve-month collection period is consistent with that collected in the first seven months, the Western Winnebago site may present an interesting opportunity for Winnebago. Given the distance to nearby substations, and high cost of interconnection at higher voltage transmission lines, Winnebago would likely need to be part of a larger project in order to reduce power costs to more attractive levels. Another alternative would be to pursue grant funding for a portion of development or equipment costs, which would also help reduce the cost of power produced. The NREL tower from the WinnaVegas site was taken down in late 2008, re-instrumented and installation attempted on the Thunderway site south of the Winnebago community. Based on projected wind speeds, current equipment costs, and the project’s proximity to substations for possible interconnection, a Thunderway community-scale wind project could also be feasible.

  4. 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.

  5. Logarithmic Wind Profile: A Stability Wind Shear Term

    E-Print Network [OSTI]

    Sakagami, Yoshiaki; Haas, Reinaldo; Passos, Julio C; Taves, Frederico F

    2014-01-01T23:59:59.000Z

    A stability wind shear term of logarithmic wind profile based on the terms of turbulent kinetic energy equation is proposed. The fraction influenced by thermal stratification is considered in the shear production term. This thermally affected shear is compared with buoyant term resulting in a stability wind shear term. It is also considered Reynolds stress as a sum of two components associated with wind shear from mechanical and thermal stratification process. The stability wind shear is responsible to Reynolds stress of thermal stratification term, and also to Reynolds stress of mechanical term at no neutral condition. The wind profile and its derivative are validated with data from Pedra do Sal experiment in a flat terrain and 300m from shoreline located in northeast coast of Brazil. It is close to the Equator line, so the meteorological condition are strongly influenced by trade winds and sea breeze. The site has one 100m tower with five instrumented levels, one 3D sonic anemometer, and a medium-range wind...

  6. PLUTONIUM FINISHING PLANT (PFP) STABILIZATION & PACKAGING PROJECT

    SciTech Connect (OSTI)

    GERBER, M.S.

    2004-01-14T23:59:59.000Z

    Fluor Hanford is pleased to submit the Plutonium Finishing Plant (PFP) Stabilization and Packaging Project (SPP) for consideration by the Project Management Institute as Project of the Year for 2004. The SPP thermally stabilized and/or packaged nearly 18 metric tons (MT) of plutonium and plutonium-bearing materials left in PFP facilities from 40 years of nuclear weapons production and experimentation. The stabilization of the plutonium-bearing materials substantially reduced the radiological risk to the environment and security concerns regarding the potential for terrorists to acquire the non-stabilized plutonium products for nefarious purposes. The work was done In older facilities which were never designed for the long-term storage of plutonium, and required working with materials that were extremely radioactive, hazardous, pyrophoric, and In some cases completely unique. I n some Instances, one-of-a-kind processes and equipment were designed, installed, and started up. The SPP was completed ahead of schedule, substantially beating all Interim progress milestone dates set by the Defense Nuclear Facilities Safety Board (DNFSB) and in the Hanford Site's Federal Facility Agreement and Consent Order (Tri-Party Agreement or TPA), and finished $1-million under budget.

  7. Cooling Towers, The Neglected Energy Resource

    E-Print Network [OSTI]

    Burger, R.

    for the sale. This paper investigates the internal elements of the typical types of cooling towers currently used, delineates their functions and shows how to upgrade them in the real world for energy savings and profitability of operation. Hard before... and after statistics of costs and profits obtained through optimization of colder water by engineered thermal upgrading will be discussed. Salient points will be reenforced with on-the-job, hands-on, slides and illustrations. HISTORICAL NEGLECT From...

  8. Wet/dry cooling tower and method

    DOE Patents [OSTI]

    Glicksman, Leon R. (Lynnfield, MA); Rohsenow, Warren R. (Waban, MA)

    1981-01-01T23:59:59.000Z

    A wet/dry cooling tower wherein a liquid to-be-cooled is flowed along channels of a corrugated open surface or the like, which surface is swept by cooling air. The amount of the surface covered by the liquid is kept small compared to the dry part thereof so that said dry part acts as a fin for the wet part for heat dissipation.

  9. Plutonium finishing plant safeguards and security systems replacement study

    SciTech Connect (OSTI)

    Klear, P.F.; Humphrys, K.L.

    1994-12-01T23:59:59.000Z

    This document provides the preferred alternatives for the replacement of the Safeguards and Security systems located at the Hanford Plutonium Finishing Plant.

  10. Sequence finishing and mapping of Drosophila melanogaster heterochromatin

    E-Print Network [OSTI]

    2008-01-01T23:59:59.000Z

    Figure 1. Comparison of WGS sequence scaffolds to thecorresponding Release 5 sequence scaffold. The WGSSequence finishing and mapping of Drosophila melanogaster

  11. Workers Create Demolition Zone at Hanford Site's Plutonium Finishing...

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

    getting ready to demolish all of the facilities at the Plutonium Finishing Plant," said Bryan Foley, deputy federal project director for EM's Richland Operations Office. "Taking...

  12. 66 IEEE TRANSACTIONS ON SUSTAINABLE ENERGY, VOL. 1, NO. 2, JULY 2010 Optimization of Wind Turbine Performance With

    E-Print Network [OSTI]

    Kusiak, Andrew

    mass damper to mitigate vibrations of the blades and tower of a wind turbine was presented in [1466 IEEE TRANSACTIONS ON SUSTAINABLE ENERGY, VOL. 1, NO. 2, JULY 2010 Optimization of Wind Turbine, IEEE Abstract--This paper presents a multiobjective optimization model of wind turbine performance

  13. National Wind Technology Center (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-12-01T23:59:59.000Z

    This overview fact sheet is one in a series of information fact sheets for the National Wind Technology Center (NWTC). Wind energy is one of the fastest growing electricity generation sources in the world. NREL's National Wind Technology Center (NWTC), the nation's premier wind energy technology research facility, fosters innovative wind energy technologies in land-based and offshore wind through its research and testing facilities and extends these capabilities to marine hydrokinetic water power. Research and testing conducted at the NWTC offers specialized facilities and personnel and provides technical support critical to the development of advanced wind energy systems. From the base of a system's tower to the tips of its blades, NREL researchers work side-by-side with wind industry partners to increase system reliability and reduce wind energy costs. The NWTC's centrally located research and test facilities at the foot of the Colorado Rockies experience diverse and robust wind patterns ideal for testing. The NWTC tests wind turbine components, complete wind energy systems and prototypes from 400 watts to multiple megawatts in power rating.

  14. Subhourly wind forecasting techniques for wind turbine operations

    SciTech Connect (OSTI)

    Wegley, H.L.; Kosorok, M.R.; Formica, W.J.

    1984-08-01T23:59:59.000Z

    Three models for making automated forecasts of subhourly wind and wind power fluctuations were examined to determine the models' appropriateness, accuracy, and reliability in wind forecasting for wind turbine operation. Such automated forecasts appear to have value not only in wind turbine control and operating strategies, but also in improving individual wind turbine control and operating strategies, but also in improving individual wind turbine operating strategies (such as determining when to attempt startup). A simple persistence model, an autoregressive model, and a generalized equivalent Markhov (GEM) model were developed and tested using spring season data from the WKY television tower located near Oklahoma City, Oklahoma. The three models represent a pure measurement approach, a pure statistical method and a statistical-dynamical model, respectively. Forecasting models of wind speed means and measures of deviations about the mean were developed and tested for all three forecasting techniques for the 45-meter level and for the 10-, 30- and 60-minute time intervals. The results of this exploratory study indicate that a persistence-based approach, using onsite measurements, will probably be superior in the 10-minute time frame. The GEM model appears to have the most potential in 30-minute and longer time frames, particularly when forecasting wind speed fluctuations. However, several improvements to the GEM model are suggested. In comparison to the other models, the autoregressive model performed poorly at all time frames; but, it is recommended that this model be upgraded to an autoregressive moving average (ARMA or ARIMA) model. The primary constraint in adapting the forecasting models to the production of wind turbine cluster power output forecasts is the lack of either actual data, or suitable models, for simulating wind turbine cluster performance.

  15. Figure and finish of grazing incidence mirrors

    SciTech Connect (OSTI)

    Takacs, P.Z. (Brookhaven National Lab., Upton, NY (USA)); Church, E.L. (Picatinny Arsenal, Dover, NJ (USA). Army Armament Research, Development and Engineering Center)

    1989-08-01T23:59:59.000Z

    Great improvement has been made in the past several years in the quality of optical components used in synchrotron radiation (SR) beamlines. Most of this progress has been the result of vastly improved metrology techniques and instrumentation permitting rapid and accurate measurement of the surface finish and figure on grazing incidence optics. A significant theoretical effort has linked the actual performance of components used as x-ray wavelengths to their topological properties as measured by surface profiling instruments. Next-generation advanced light sources will require optical components and systems to have sub-arc second surface figure tolerances. This paper will explore the consequences of these requirements in terms of manufacturing tolerances to see if the present manufacturing state-of-the-art is capable of producing the required surfaces. 15 refs., 14 figs., 2 tabs.

  16. Oral Syllabus of David Nacin Minor Topic: The Automorphism Tower Problem

    E-Print Network [OSTI]

    Oral Syllabus of David Nacin Minor Topic: The Automorphism Tower Problem Simon Thomas: The Automorphism Tower Problem 1. The Automorphism Tower Problem (a) The Automorphism Tower Problem (b) Some Fundamental Results (c) Some Examples of Automorphism Towers (d) The Infinite Dihedral Group 2. Wielandt

  17. Optimization of Multiple Receivers Solar Power Tower systems

    E-Print Network [OSTI]

    2015-04-08T23:59:59.000Z

    Apr 8, 2015 ... Solar Power Tower (SPT) systems are known as one of the most promising ...... An appropriate control is required to adapt the mass flow in the ...

  18. Optimization of Multiple Receivers Solar Power Tower systems

    E-Print Network [OSTI]

    Emilio Carrizosa

    2015-03-26T23:59:59.000Z

    Mar 26, 2015 ... Abstract: In this article a new procedure to optimize the design of a Multiple Receivers Solar Power Tower system is presented. The proposed ...

  19. airport tower stressful: Topics by E-print Network

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

    Summary: Abstract For technical, aesthetic and economical reasons, future power transmission line towers will have to be built with new design concepts using new...

  20. airport control towers: Topics by E-print Network

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

    Summary: Abstract For technical, aesthetic and economical reasons, future power transmission line towers will have to be built with new design concepts using new...

  1. The Damaging Effects of Earthquake Excitation on Concrete Cooling Towers

    SciTech Connect (OSTI)

    Abedi-Nik, Farhad [SADRA Institute of Higher Education, Tehran (Iran, Islamic Republic of); Sabouri-Ghomi, Saeid [K.N.T University of Technology, Tehran (Iran, Islamic Republic of)

    2008-07-08T23:59:59.000Z

    Reinforced concrete cooling towers of hyperbolic shell configuration find widespread application in utilities engaged in the production of electric power. In design of critical civil infrastructure of this type, it is imperative to consider all the possible loading conditions that the cooling tower may experience, an important loading condition in many countries is that of the earthquake excitation, whose influence on the integrity and stability of cooling towers is profound. Previous researches have shown that the columns supporting a cooling tower are sensitive to earthquake forces, as they are heavily loaded elements that do not possess high ductility, and understanding the behavior of columns under earthquake excitation is vital in structural design because they provide the load path for the self weight of the tower shell. This paper presents the results of a finite element investigation of a representative 'dry' cooling tower, using realistic horizontal and vertical acceleration data obtained from the recent and widely-reported Tabas, Naghan and Bam earthquakes in Iran. The results of both linear and nonlinear analyses are reported in the paper, the locations of plastic hinges within the supporting columns are identified and the ramifications of the plastic hinges on the stability of the cooling tower are assessed. It is concluded that for the (typical) cooling tower configuration analyzed, the columns that are instrumental in providing a load path are influenced greatly by earthquake loading, and for the earthquake data used in this study the representative cooling tower would be rendered unstable and would collapse under the earthquake forces considered.

  2. TOWER OF COVERINGS OF QUASI-PROJECTIVE VARIETIES ...

    E-Print Network [OSTI]

    2012-04-25T23:59:59.000Z

    on a tower of coverings of a non-compact Kähler manifold of finite volume with reasonable geometric assumptions to its universal covering. Applicable examples ...

  3. Comparative evaluation of cooling tower drift eliminator performance

    E-Print Network [OSTI]

    Chan, Joseph Kwok-Kwong

    The performance of standard industrial evaporative cooling tower drift eliminators is analyzed using experiments and numerical simulations. The experiments measure the

  4. Wind turbine/generator set having a stator cooling system located between stator frame and active coils

    DOE Patents [OSTI]

    Bevington, Christopher M.; Bywaters, Garrett L.; Coleman, Clint C.; Costin, Daniel P.; Danforth, William L.; Lynch, Jonathan A.; Rolland, Robert H.

    2012-11-13T23:59:59.000Z

    A wind turbine comprising an electrical generator that includes a rotor assembly. A wind rotor that includes a wind rotor hub is directly coupled to the rotor assembly via a simplified connection. The wind rotor and generator rotor assembly are rotatably mounted on a central spindle via a bearing assembly. The wind rotor hub includes an opening having a diameter larger than the outside diameter of the central spindle adjacent the bearing assembly so as to allow access to the bearing assembly from a cavity inside the wind rotor hub. The spindle is attached to a turret supported by a tower. Each of the spindle, turret and tower has an interior cavity that permits personnel to traverse therethrough to the cavity of the wind rotor hub. The wind turbine further includes a frictional braking system for slowing, stopping or keeping stopped the rotation of the wind rotor and rotor assembly.

  5. WIND ENERGY Wind Energ. (2014)

    E-Print Network [OSTI]

    Peinke, Joachim

    2014-01-01T23:59:59.000Z

    loads from the wind inflow through rotor aerodynamics, drive train and power electronics is stillWIND ENERGY Wind Energ. (2014) Published online in Wiley Online Library (wileyonlinelibrary wind inflow conditions M. R. Luhur, J. Peinke, J. Schneemann and M. Wächter ForWind-Center for Wind

  6. Tower systems for Linearly repetitive Delone sets

    E-Print Network [OSTI]

    José Aliste-Prieto; Daniel Coronel

    2010-03-22T23:59:59.000Z

    In this paper we study linearly repetitive Delone sets and prove, following the work of Bellissard, Benedetti and Gambaudo, that the hull of a linearly repetitive Delone set admits a properly nested sequence of box decompositions (tower system) with strictly positive and uniformly bounded (in size and norm) transition matrices. This generalizes a result of Durand for linearly recurrent symbolic systems. Furthermore, we apply this result to give a new proof of a classic estimation of Lagarias and Pleasants on the rate of convergence of patch-frequencies.

  7. CXAllenRadioTower2.pdf

    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 C o . C l a r8.0 -CURRICULUM VITAEAllen Radio Tower

  8. GreenTower | 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.pdfGetec AG ContractingGreenOrder Jump to: navigation,GreenTower Jump to:

  9. Tower, Minnesota: Energy Resources | 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 PvtStratosolarTharaldsonInformationTorpedo SpecialityVessel JumpTower,

  10. Wind Turbine Towers Establish New Height Standards and Reduce Cost of Wind

    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 DensityEnergy U.S.-China Electric VehicleCenters | Department ofoftoMay 8, 2014Energy Turbine

  11. Wind Turbine Towers Establish New Height Standards and Reduce Cost of Wind Energy

    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 DensityEnergy U.S.-China Electric VehicleCenters | Department ofoftoMay 8, 2014Energy Turbineenabled

  12. A Brief Status on Condition Monitoring and Fault Diagnosis in Wind Energy Conversion Systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A Brief Status on Condition Monitoring and Fault Diagnosis in Wind Energy Conversion Systems--There is a constant need for the reduction of operational and maintenance costs of Wind Energy Conversion Systems since they are situated on extremely high towers, which are normally 20 m or more in height

  13. Session: Poster Session + Poster Award + Scientific Award + Excellent young wind doctor award (PO.202) Track: Technical

    E-Print Network [OSTI]

    .202) Track: Technical COMMERCIAL LIDAR PROFILERS FOR WIND ENERGY. A COMPARATIVE GUIDE. (abstract-ID: 359) Michael S. Courtney (Risø DTU, Wind Energy Department, Denmark) Lidar profilers have based, portable instrument can eliminate the need for expensive measuring towers whilst providing

  14. Condition Monitoring and Fault Diagnosis in Wind Energy Conversion Systems: A Review

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Condition Monitoring and Fault Diagnosis in Wind Energy Conversion Systems: A Review Y. Amirat, M for the reduction of operational and maintenance costs of Wind Energy Conversion Systems (WECS). The most efficient they are situated on extremely high towers, which are normally 20 m or greater in height. There are also plans

  15. PS10 Solar Power Tower Xi Jing, Fang

    E-Print Network [OSTI]

    Prevedouros, Panos D.

    area equivalent of 17 American Football Tower Solar receiver 4 vertical panels 18ft*39ft Steam turbinePS10 Solar Power Tower Xi Jing, Fang #12;Overview Magnitudes , Cost & TechnologiesMagnitudes , Cost Government . #12;Further ExplanationFurther Explanation Plataforma Solar de Sanlúcar la Mayor,PSSM Megawatts

  16. A Microcomputer Model of Crossflow Cooling Tower Performance 

    E-Print Network [OSTI]

    Reichelt, G. E; Jones, J. W.

    1984-01-01T23:59:59.000Z

    that use both sensible heat transfer and mass transfer to cool. The heat and mass transfer process for a crossflow cooling tower has been modeled on an Apple II microcomputer. Various heat loads or weather conditions can be imposed on a given tower...

  17. Best Practice for Energy Efficient Cleanrooms: Cooling tower and condenser water optimization

    E-Print Network [OSTI]

    Xu, Tengfang

    2005-01-01T23:59:59.000Z

    for Energy Efficient Cleanrooms: Cooling Tower and Condenserfor Energy Efficient Cleanrooms: Cooling tower and condensertower and condenser water optimization Summary Cleanroom energy

  18. Purification of water from cooling towers and other heat exchange systems

    DOE Patents [OSTI]

    Sullivan; Enid J. (Los Alamos, NM), Carlson; Bryan J. (Ojo Caliente, NM), Wingo; Robert M. (Los Alamos, NM), Robison; Thomas W. (Stilwell, KS)

    2012-08-07T23:59:59.000Z

    The amount of silica in cooling tower water is reduced by passing cooling tower water through a column of silica gel.

  19. Plutonium Finishing Plant safety evaluation report

    SciTech Connect (OSTI)

    Not Available

    1995-01-01T23:59:59.000Z

    The Plutonium Finishing Plant (PFP) previously known as the Plutonium Process and Storage Facility, or Z-Plant, was built and put into operation in 1949. Since 1949 PFP has been used for various processing missions, including plutonium purification, oxide production, metal production, parts fabrication, plutonium recovery, and the recovery of americium (Am-241). The PFP has also been used for receipt and large scale storage of plutonium scrap and product materials. The PFP Final Safety Analysis Report (FSAR) was prepared by WHC to document the hazards associated with the facility, present safety analyses of potential accident scenarios, and demonstrate the adequacy of safety class structures, systems, and components (SSCs) and operational safety requirements (OSRs) necessary to eliminate, control, or mitigate the identified hazards. Documented in this Safety Evaluation Report (SER) is DOE`s independent review and evaluation of the PFP FSAR and the basis for approval of the PFP FSAR. The evaluation is presented in a format that parallels the format of the PFP FSAR. As an aid to the reactor, a list of acronyms has been included at the beginning of this report. The DOE review concluded that the risks associated with conducting plutonium handling, processing, and storage operations within PFP facilities, as described in the PFP FSAR, are acceptable, since the accident safety analyses associated with these activities meet the WHC risk acceptance guidelines and DOE safety goals in SEN-35-91.

  20. Group Date Location Room No. Group Day Date Location Room No. Monday 26 September David Hume Tower 9.18 Friday 30 September David Hume Tower 9.18

    E-Print Network [OSTI]

    Tittley, Eric

    Group Date Location Room No. Group Day Date Location Room No. Monday 26 September David Hume Tower 9.18 Friday 30 September David Hume Tower 9.18 10 October David Hume Tower 9.18 14 October David Hume Tower 9.18 24 October David Hume Tower 9.18 28 October David Hume Tower 9.18 07 November David

  1. Cooling towers, the neglected energy conservations and money making machine

    SciTech Connect (OSTI)

    Burger, R. [Burger Associates, Dallas, TX (United States)

    1996-12-31T23:59:59.000Z

    The heat Rejection Industry defines a nominal cooling tower as circulating three gallons of water per minute (GPM) per ton of refrigeration from entering the tower at 95 {degrees}F, Hot Water temperature (HWT), Leaving at 85{degrees}F Cold Water Temperature (CWT) at a Design Wet Bulb of 70{degrees}F (WBT). Manufacturers then provide a selection chart based on various wet bulb temperatures and HWTs. The wet bulb fluctuates and varies throughout the world since it is the combination ambient temperature, relative humidity, and/or dew point. Different HWT and CWT requirements are usually charted as they change, so that the user can select the nominal cooling tower model recommended by the manufacturer. In the specification of cooling towers it is necessary to clearly understand the definition of nominal cooling tower, and to make sure the specification you need addressed can be met by the system you purchase. This should be tested prior to final acceptance.

  2. Small-scale wind turbines in cities and suburbs S Tullis, K Aly, R Bravo, A Fiedler, S Kooiman, K McLaren S Ziada

    E-Print Network [OSTI]

    Tullis, Stephen

    Small-scale wind turbines in cities and suburbs S Tullis, K Aly, R Bravo, A Fiedler, S Kooiman, K wind turbines in the urban environment: Current Research at McMaster University Nominal performance #12;Horizontal axis small wind turbines Numerous suppliers of turbines for tower/field installation

  3. Kaneohe, Hawaii Wind Resource Assessment Report

    SciTech Connect (OSTI)

    Robichaud, R.; Green, J.; Meadows, B.

    2011-11-01T23:59:59.000Z

    The Department of Energy (DOE) has an interagency agreement to assist the Department of Defense (DOD) in evaluating the potential to use wind energy for power at residential properties at DOD bases in Hawaii. DOE assigned the National Renewable Energy Laboratory (NREL) to facilitate this process by installing a 50-meter (m) meteorological (Met) tower on residential property associated with the Marine Corps Base Housing (MCBH) Kaneohe Bay in Hawaii.

  4. U.S. Virgin Islands Wind Resources Update 2014

    SciTech Connect (OSTI)

    Roberts, J. O.; Warren, A.

    2014-12-01T23:59:59.000Z

    This report summarizes the data collected from two 60-meter meteorological towers and three sonic detection and ranging units on St. Thomas and St. Croix in 2012 and 2013. These results are an update to the previous feasibility study; the collected data are critical to the successful development of a wind project at either site.

  5. Impact of Tsunamis on Near Shore Wind Power Units

    E-Print Network [OSTI]

    Parambath, Ashwin

    2011-02-22T23:59:59.000Z

    65kW Nordtank wind turbine to random base excitations. A stress analysis of turbine tower cross section is performed in order to assess the structural integrity of the WPU. It has been determined that the WPU is unsafe for bore/surge heights above 5 m...

  6. Concrete Company Aims Higher for More Wind Energy

    Broader source: Energy.gov [DOE]

    Today, most steel towers that support utility-scale turbines stand about 80 meters tall, but the Tindall Corporation wants to go higher using precast concrete to raise turbines over 100 meters in height to capture stronger, steadier winds - and more energy.

  7. avaetapi finish oli: Topics by E-print Network

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

    Akvil? 2012-01-01 12 Wearability of Portland Cement Concrete Pavement Finishes Texas A&M University - TxSpace Summary: fine aggregate types: a siliceous sand (SF), also...

  8. Use of Optical Mapping in Bacterial Genome Finishing

    SciTech Connect (OSTI)

    Kumar, Dibyendu [University of Florida

    2010-06-03T23:59:59.000Z

    Dibyendu Kumar from the University of Florida discusses whole-genome optical mapping to help validate bacterial genome assemblies on June 3, 2010 at the "Sequencing, Finishing, Analysis in the Future" meeting in Santa Fe, NM

  9. Worker Involvement Improves Safety at Hanford Site's Plutonium Finishing Plant

    Broader source: Energy.gov [DOE]

    Employees at the Hanford site are working together to find new and innovative ways to stay safe at the Plutonium Finishing Plant, one of the site’s most complex decommissioning projects.

  10. Conversion Tower for Dispatchable Solar Power: High-Efficiency Solar-Electric Conversion Power Tower

    SciTech Connect (OSTI)

    None

    2012-01-11T23:59:59.000Z

    HEATS Project: Abengoa Solar is developing a high-efficiency solar-electric conversion tower to enable low-cost, fully dispatchable solar energy generation. Abengoa’s conversion tower utilizes new system architecture and a two-phase thermal energy storage media with an efficient supercritical carbon dioxide (CO2) power cycle. The company is using a high-temperature heat-transfer fluid with a phase change in between its hot and cold operating temperature. The fluid serves as a heat storage material and is cheaper and more efficient than conventional heat-storage materials, like molten salt. It also allows the use of a high heat flux solar receiver, advanced high thermal energy density storage, and more efficient power cycles.

  11. Tower reactors for bioconversion of lignocellulosic material

    DOE Patents [OSTI]

    Nguyen, Q.A.

    1998-03-31T23:59:59.000Z

    An apparatus is disclosed for enzymatic hydrolysis and fermentation of pretreated lignocellulosic material. The apparatus consists of a tower bioreactor which has mixers to achieve intermittent mixing of the material. Precise mixing of the material is important for effective heat and mass transfer requirements without damaging or denaturing the enzymes or fermenting microorganisms. The pretreated material, generally in the form of a slurry, is pumped through the bioreactor, either upwards or downwards, and is mixed periodically as it passes through the mixing zones where the mixers are located. For a thin slurry, alternate mixing can be achieved by a pumping loop which also serves as a heat transfer device. Additional heat transfer takes place through the reactor heat transfer jackets. 5 figs.

  12. Tower reactors for bioconversion of lignocellulosic material

    DOE Patents [OSTI]

    Nguyen, Quang A. (16458 W. 1st Ave., Golden, CO 80401)

    1998-01-01T23:59:59.000Z

    An apparatus for enzymatic hydrolysis and fermentation of pretreated lignocellulosic material, in the form of a tower bioreactor, having mixers to achieve intermittent mixing of the material. Precise mixing of the material is important for effective heat and mass transfer requirements without damaging or denaturing the enzymes or fermenting microorganisms. The pretreated material, generally in the form of a slurry, is pumped through the bioreactor, either upwards of downwards, and is mixed periodically as it passes through the mixing zones where the mixers are located. For a thin slurry, alternate mixing can be achieved by a pumping loop which also serves as a heat transfer device. Additional heat transfer takes place through the reactor heat transfer jackets.

  13. Tower reactors for bioconversion of lignocellulosic material

    DOE Patents [OSTI]

    Nguyen, Quang A. (16458 W. 1st Ave., Golden, CO 80401)

    1999-01-01T23:59:59.000Z

    An apparatus for enzymatic hydrolysis and fermentation of pretreated lignocellulosic material, in the form of a tower bioreactor, having mixers to achieve intermittent mixing of the material. Precise mixing of the material is important for effective heat and mass transfer requirements without damaging or denaturing the enzymes or fermenting microorganisms. The pretreated material, generally in the form of a slurry, is pumped through the bioreactor, either upwards or downwards, and is mixed periodically as it passes through the mixing zones where the mixers are located. For a thin slurry, alternate mixing can be achieved by a pumping loop which also serves as a heat transfer device. Additional heat transfer takes place through the reactor heat transfer jackets.

  14. Tower reactors for bioconversion of lignocellulosic material

    DOE Patents [OSTI]

    Nguyen, Q.A.

    1999-03-30T23:59:59.000Z

    An apparatus is described for enzymatic hydrolysis and fermentation of pretreated lignocellulosic material, in the form of a tower bioreactor, having mixers to achieve intermittent mixing of the material. Precise mixing of the material is important for effective heat and mass transfer requirements without damaging or denaturing the enzymes or fermenting microorganisms. The pretreated material, generally in the form of a slurry, is pumped through the bioreactor, either upwards or downwards, and is mixed periodically as it passes through the mixing zones where the mixers are located. For a thin slurry, alternate mixing can be achieved by a pumping loop which also serves as a heat transfer device. Additional heat transfer takes place through the reactor heat transfer jackets. 5 figs.

  15. Results from the CDMS 5-Tower Operation

    E-Print Network [OSTI]

    Jonghee Yoo; for the CDMS collaboration

    2008-10-20T23:59:59.000Z

    Astrophysical observations strongly suggest that non-luminous, nonbaryonic components, so called "Dark Matter", may constitute most of the matter in the Universe. The Cryogenic Dark Matter Search (CDMS) experiment is designed to detect Dark Matter interaction events through nuclear recoils from elastic scattering. The detector is capable of reading out both phonon and ionization energy of an interaction in Ge or Si crystals. We present results from the CDMS five-tower detector arrays. The data were collected in the period between October 2006 and July 2007 (with an effective exposure of 121.3 kg-days). No WIMP signal was observed. The results, when combined with previous CDMS Soudan data, set a 90% confidence level upper bound on the WIMP-nucleon cross section of $4.6\\times 10^{-44}$ cm$^2$ at 60 Gev/c$^2$ WIMP mass.

  16. Solder flow over fine line PWB surface finishes

    SciTech Connect (OSTI)

    Hosking, F.M.; Hernandez, C.L.

    1998-08-01T23:59:59.000Z

    The rapid advancement of interconnect technology has stimulated the development of alternative printed wiring board (PWB) surface finishes to enhance the solderability of standard copper and solder-coated surfaces. These new finishes are based on either metallic or organic chemistries. As part of an ongoing solderability study, Sandia National Laboratories has investigated the solder flow behavior of two azole-based organic solderability preservations, immersion Au, immersion Ag, electroless Pd, and electroless Pd/Ni on fine line copper features. The coated substrates were solder tested in the as-fabricated and environmentally-stressed conditions. Samples were processed through an inerted reflow machine. The azole-based coatings generally provided the most effective protection after aging. Thin Pd over Cu yielded the best wetting results of the metallic coatings, with complete dissolution of the Pd overcoat and wetting of the underlying Cu by the flowing solder. Limited wetting was measured on the thicker Pd and Pd over Ni finishes, which were not completely dissolved by the molten solder. The immersion Au and Ag finishes yielded the lowest wetted lengths, respectively. These general differences in solderability were directly attributed to the type of surface finish which the solder came in contact with. The effects of circuit geometry, surface finish, stressing, and solder processing conditions are discussed.

  17. Power Tower Technology Roadmap and cost reduction plan.

    SciTech Connect (OSTI)

    Mancini, Thomas R.; Gary, Jesse A. (U.S. Department of Energy); Kolb, Gregory J.; Ho, Clifford Kuofei

    2011-04-01T23:59:59.000Z

    Concentrating solar power (CSP) technologies continue to mature and are being deployed worldwide. Power towers will likely play an essential role in the future development of CSP due to their potential to provide dispatchable solar electricity at a low cost. This Power Tower Technology Roadmap has been developed by the U.S. Department of Energy (DOE) to describe the current technology, the improvement opportunities that exist for the technology, and the specific activities needed to reach the DOE programmatic target of providing competitively-priced electricity in the intermediate and baseload power markets by 2020. As a first step in developing this roadmap, a Power Tower Roadmap Workshop that included the tower industry, national laboratories, and DOE was held in March 2010. A number of technology improvement opportunities (TIOs) were identified at this workshop and separated into four categories associated with power tower subsystems: solar collector field, solar receiver, thermal energy storage, and power block/balance of plant. In this roadmap, the TIOs associated with power tower technologies are identified along with their respective impacts on the cost of delivered electricity. In addition, development timelines and estimated budgets to achieve cost reduction goals are presented. The roadmap does not present a single path for achieving these goals, but rather provides a process for evaluating a set of options from which DOE and industry can select to accelerate power tower R&D, cost reductions, and commercial deployment.

  18. Wind turbine having a direct-drive drivetrain

    DOE Patents [OSTI]

    Bevington, Christopher M.; Bywaters, Garrett L.; Coleman, Clint C.; Costin, Daniel P.; Danforth, William L.; Lynch, Jonathan A.; Rolland, Robert H.

    2008-10-07T23:59:59.000Z

    A wind turbine (100) comprising an electrical generator (108) that includes a rotor assembly (112). A wind rotor (104) that includes a wind rotor hub (124) is directly coupled to the rotor assembly via a simplified connection. The wind rotor and generator rotor assembly are rotatably mounted on a central spindle (160) via a bearing assembly (180). The wind rotor hub includes an opening (244) having a diameter larger than the outside diameter of the central spindle adjacent the bearing assembly so as to allow access to the bearing assembly from a cavity (380) inside the wind rotor hub. The spindle is attached to a turret (140) supported by a tower (136). Each of the spindle, turret and tower has an interior cavity (172, 176, 368) that permits personnel to traverse therethrough to the cavity of the wind rotor hub. The wind turbine further includes a frictional braking system (276) for slowing, stopping or keeping stopped the rotation of the wind rotor and rotor assembly.

  19. Wind Resource Assessment Report: Mille Lacs Indian Reservation, Minnesota

    SciTech Connect (OSTI)

    Jimenez, A. C.

    2013-12-01T23:59:59.000Z

    The U.S. Environmental Protection Agency (EPA) launched the RE-Powering America's Land initiative to encourage development of renewable energy on potentially contaminated land and mine sites. EPA collaborated with the U.S. Department of Energy's (DOE's) National Renewable Energy Laboratory (NREL) and the Mille Lacs Band of Chippewa Indians to evaluate the wind resource and examine the feasibility of a wind project at a contaminated site located on the Mille Lacs Indian Reservation in Minnesota. The wind monitoring effort involved the installation of a 60-m met tower and the collection of 18 months of wind data at multiple heights above the ground. This report focuses on the wind resource assessment, the estimated energy production of wind turbines, and an assessment of the economic feasibility of a potential wind project sited this site.

  20. Commonwealth Wind Commercial Wind Program

    Broader source: Energy.gov [DOE]

    Through the Commonwealth Wind Incentive Program – Commercial Wind Initiative the Massachusetts Clean Energy Center (MassCEC) offers site assessment grants of services, feasibility study grants, a...

  1. Wind Turbine Safety and Function Test Report for the Mariah Windspire Wind Turbine

    SciTech Connect (OSTI)

    Huskey, A.; Bowen, A.; Jager, D.

    2010-07-01T23:59:59.000Z

    This test was conducted as part of the U.S. Department of Energy's (DOE) Independent Testing project. This project was established to help reduce the barriers to wind energy expansion by providing independent testing results for small wind turbines (SWT). In total, five turbines were tested at the National Wind Technology Center (NWTC) as a part of this project. Safety and function testing is one of up to five tests performed on the turbines, including power performance, duration, noise, and power-quality tests. NWTC testing results provide manufacturers with reports that may be used to meet part of small wind turbine certification requirements. The test equipment includes a Mariah Windspire wind turbine mounted on a monopole tower. L&E Machine manufactured the turbine in the United States. The inverter was manufactured separately by Technology Driven Products in the United States. The system was installed by the NWTC site operations group with guidance and assistance from Mariah Power.

  2. Use of nanofiltration to reduce cooling tower water usage.

    SciTech Connect (OSTI)

    Sanchez, Andres L.; Everett, Randy L.; Jensen, Richard Pearson; Cappelle, Malynda A.; Altman, Susan Jeanne

    2010-09-01T23:59:59.000Z

    Nanofiltration (NF) can effectively treat cooling-tower water to reduce water consumption and maximize water usage efficiency of thermoelectric power plants. A pilot is being run to verify theoretical calculations. A side stream of water from a 900 gpm cooling tower is being treated by NF with the permeate returning to the cooling tower and the concentrate being discharged. The membrane efficiency is as high as over 50%. Salt rejection ranges from 77-97% with higher rejection for divalent ions. The pilot has demonstrated a reduction of makeup water of almost 20% and a reduction of discharge of over 50%.

  3. Use of nanofiltration to reduce cooling tower water consumption.

    SciTech Connect (OSTI)

    Altman, Susan Jeanne; Ciferno, Jared

    2010-10-01T23:59:59.000Z

    Nanofiltration (NF) can effectively treat cooling-tower water to reduce water consumption and maximize water usage efficiency of thermoelectric power plants. A pilot is being run to verify theoretical calculations. A side stream of water from a 900 gpm cooling tower is being treated by NF with the permeate returning to the cooling tower and the concentrate being discharged. The membrane efficiency is as high as over 50%. Salt rejection ranges from 77-97% with higher rejection for divalent ions. The pilot has demonstrated a reduction of makeup water of almost 20% and a reduction of discharge of over 50%.

  4. Tower of Hanoi Most of the following paragraphs were copied from wikipedia [I]. Pictures were bor-

    E-Print Network [OSTI]

    Lalín, Matilde

    Tower of Hanoi Most of the following paragraphs were copied from wikipedia [I]. Pictures were bor- rowed from [2] and [3]. The Tower of Hanoi or Towers of Hanoi is a mathematical game or puzzle known as the Tower of Brahma puzzle. It is not clear whether Lucas invented this legend or was inspired

  5. ON THE FRAME-STEWART ALGORITHM FOR THE TOWER MICHAEL RAND

    E-Print Network [OSTI]

    Behrstock, Jason

    ON THE FRAME-STEWART ALGORITHM FOR THE TOWER OF HANOI MICHAEL RAND 1. Introduction The Tower is to move the entire tower to another peg, while obeying the following restrictions: · Only one disk may have been: · What is the minimum number of moves required to transfer the entire tower from one peg

  6. FMRI BOLD Cerebellar Activation of First-episode Schizophrenia Patients during the Tower of London Task

    E-Print Network [OSTI]

    Thompson, Paul

    FMRI BOLD Cerebellar Activation of First-episode Schizophrenia Patients during the Tower of London difficulty (number of moves) when performing the Tower of London task. Left Figure: Example of a Tower Tower of London problem. (Yellow labels are for the purpose of illustration only and did not appear

  7. Wind Development on Tribal Lands

    SciTech Connect (OSTI)

    Ken Haukaas; Dale Osborn; Belvin Pete

    2008-01-18T23:59:59.000Z

    Background: The Rosebud Sioux Tribe (RST) is located in south central South Dakota near the Nebraska border. The nearest community of size is Valentine, Nebraska. The RST is a recipient of several Department of Energy grants, written by Distributed Generation Systems, Inc. (Disgen), for the purposes of assessing the feasibility of its wind resource and subsequently to fund the development of the project. Disgen, as the contracting entity to the RST for this project, has completed all the pre-construction activities, with the exception of the power purchase agreement and interconnection agreement, to commence financing and construction of the project. The focus of this financing is to maximize the economic benefits to the RST while achieving commercially reasonable rates of return and fees for the other parties involved. Each of the development activities required and its status is discussed below. Land Resource: The Owl Feather War Bonnet 30 MW Wind Project is located on RST Tribal Trust Land of approximately 680 acres adjacent to the community of St. Francis, South Dakota. The RST Tribal Council has voted on several occasions for the development of this land for wind energy purposes, as has the District of St. Francis. Actual footprint of wind farm will be approx. 50 acres. Wind Resource Assessment: The wind data has been collected from the site since May 1, 2001 and continues to be collected and analyzed. The latest projections indicate a net capacity factor of 42% at a hub height of 80 meters. The data has been collected utilizing an NRG 9300 Data logger System with instrumentation installed at 30, 40 and 65 meters on an existing KINI radio tower. The long-term annual average wind speed at 65-meters above ground level is 18.2 mph (8.1 mps) and 18.7 mph (8.4 mps) at 80-meters agl. The wind resource is excellent and supports project financing.

  8. Finished Prokaryotic Genome Assemblies from a Low-cost Combination of Short and Long Reads (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)

    ScienceCinema (OSTI)

    Yin, Shuangye (Broad Institute)

    2013-02-11T23:59:59.000Z

    Shuangye Yin on "Finished prokaryotic genome assemblies from a low-cost combination of short and long reads" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

  9. WIND ENERGY Wind Energ. (2014)

    E-Print Network [OSTI]

    2014-01-01T23:59:59.000Z

    in the near wake. In conclusion, WiTTS performs satisfactorily in the rotor region of wind turbine wakes under neutral stability. Copyright © 2014 John Wiley & Sons, Ltd. KEYWORDS wind turbine wake; wake model; self in wind farms along several rows and columns. Because wind turbines generate wakes that propagate downwind

  10. Energy Efficiency Evaluation of Guangzhou West Tower Façade System

    E-Print Network [OSTI]

    Meng, Q.; Zhang, L.

    2006-01-01T23:59:59.000Z

    of Public Buildings”, typical meteorological yearly data for Guangzhou were used and revised according to architectural character of Guangzhou West Tower. The energy efficiency design of a single skin façade and active airflow curtain wall was analyzed by a...

  11. Cooling Towers - Energy Conservation and Money Making Mechanisms

    E-Print Network [OSTI]

    Burger, R.

    1981-01-01T23:59:59.000Z

    cooling towers in operation are performing at levels as low as 50% of capability. This is energy wasteful and financially foolish. There are many reasons for this deficiency, among them the present service is greater than the original requirements...

  12. Experimental Investigation of the Padding Tower for Air Dehumidifier

    E-Print Network [OSTI]

    Wang, J.; Liu, J.; Li, C.; Zhang, G.; An, S.

    2006-01-01T23:59:59.000Z

    , and solar power as the heat source for regeneration. Hence, this system has a great latent potential for energy savings and environmental protection. The system chooses the padding tower as a dehumidifier and regenerator, which are often used...

  13. Cooling Towers - Energy Conservation and Money Making Mechanisms 

    E-Print Network [OSTI]

    Burger, R.

    1981-01-01T23:59:59.000Z

    The utilization of colder water conserves energy, creates profits, increases product output. In an effort to obtain greater efficiencies and conserve both energy and dollars, all too many engineers neglect the potential of the cooling tower. Many...

  14. Energy Efficiency Evaluation of Guangzhou West Tower Façade System 

    E-Print Network [OSTI]

    Meng, Q.; Zhang, L.

    2006-01-01T23:59:59.000Z

    Guangzhou West Tower is an extremely tall public building. The energy efficiency evaluation of its façade should be different than that of ordinary public buildings. Based on the national code GB50189-2005, “Design Standard for Energy efficiency...

  15. Armor Tower Inc. Notification of Intent to Investigate

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

    Mr. Edward Rosenbloom Chief Executive Officer Armor Tower, Inc. 9 N Main St, 2nd Floor Cortland, New York 13045 Dear Mr. Rosenbloom: This letter serves as notification of the...

  16. Comparative Analysis of a Novel Approach to Economical Wind Energy Verterbi School of Engineering Research & Innovation Fund Final Report

    E-Print Network [OSTI]

    Zhou, Chongwu

    ). This system was analyzed using software Figure 2 Figure 1 #12;2 developed at UC Berkeley, SAP2000 of the research project: Conventional wind energy generation is obtained from "wind farms" that are in high of the infrastructure and land required to construct the towers has limited the use of this system. A new cable based

  17. Analysis of wind turbine vibrations based on SCADA data

    E-Print Network [OSTI]

    Andrew Kusiak; Zijun Zhang

    2010-01-01T23:59:59.000Z

    Vibrations of a wind turbine have a negative impact on its performance. Mitigating this undesirable impact requires knowledge of the relationship between the vibrations and other wind turbine parameters that could be potentially modified. Three approaches for ranking the impact importance of measurable turbine parameters on the vibrations of the drive train and the tower are discussed. They include the predictor importance analysis, the global sensitivity analysis, and the correlation coefficient analysis versed in data mining and statistics. To decouple the impact of wind speed on the vibrations of the drive train and the tower, the analysis is performed on data sets with narrow speed ranges. Wavelet analysis is applied to filter noisy accelerometer data. To exclude the impact malfunctions on the vibration analysis, the data are analyzed in a frequency domain. Data-mining algorithms are used to build models with turbine parameters of interest as inputs, and the vibrations of drive train and tower as outputs. The performance of each model is thoroughly evaluated based on metrics widely used in the wind industry. The neural network algorithm outperforms other classifiers and is considered to be the most promising approach to study wind turbine vibrations. ?DOI: 10.1115/1.4001461?

  18. Variable Frequency AC Drives for Cooling Tower Energy Efficiency

    E-Print Network [OSTI]

    Corey, R. W.

    1982-01-01T23:59:59.000Z

    speed fan drives. Fan speed is reduced to yield specific water temperatures at thermal conditions less difficult than design. The reduced air flow is accomplished by reduced fan power consumption, resulting in optimum cooling tower operation... and economics. Automatic fan speed control by sensing cold water temperature is the economic essence of the application of adjustable frequency power to A-C fan motors. 2.2 Cell Partitions In some multi-cell mechanical-draft cooling towers, the isolation...

  19. Biodiversity Governance: A Tower of Babel of Scales and Cultures

    E-Print Network [OSTI]

    Soberon, Jorge; Peterson, A Townsend

    2015-03-12T23:59:59.000Z

    PERSPECTIVE Biodiversity Governance: A Tower of Babel of Scales and Cultures Jorge Soberón*, A. Townsend Peterson Biodiversity Institute and Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, Kansas, United States...) explicitly mentions as stakeholders: PLOS Biology | DOI:10.1371/journal.pbio.1002108 March 12, 2015 1 / 5 a11111 OPEN ACCESS Citation: Soberón J, Peterson AT (2015) Biodiversity Governance: A Tower of Babel of Scales and Cultures. PLoS Biol 13(3): e1002108...

  20. Turbine Inflow Characterization at the National Wind Technology Center: Preprint

    SciTech Connect (OSTI)

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

    2012-01-01T23:59:59.000Z

    Utility-scale wind turbines operate in dynamic flows that can vary significantly over timescales from less than a second to several years. To better understand the inflow to utility-scale turbines, two inflow towers were installed and commissioned at the National Renewable Energy Laboratory's (NREL) National Wind Technology Center near Boulder, Colorado, in 2011. These towers are 135 m tall and instrumented with a combination of sonic anemometers, cup anemometers, wind vanes, and temperature measurements to characterize the inflow wind speed and direction, turbulence, stability and thermal stratification to two utility-scale turbines. Herein, we present variations in mean and turbulent wind parameters with height, atmospheric stability, and as a function of wind direction that could be important for turbine operation as well as persistence of turbine wakes. Wind speed, turbulence intensity, and dissipation are all factors that affect turbine performance. Our results shown that these all vary with height across the rotor disk, demonstrating the importance of measuring atmospheric conditions that influence wind turbine performance at multiple heights in the rotor disk, rather than relying on extrapolation from lower levels.

  1. Review of Wind Energy Forecasting Methods for Modeling Ramping Events

    SciTech Connect (OSTI)

    Wharton, S; Lundquist, J K; Marjanovic, N; Williams, J L; Rhodes, M; Chow, T K; Maxwell, R

    2011-03-28T23:59:59.000Z

    Tall onshore wind turbines, with hub heights between 80 m and 100 m, can extract large amounts of energy from the atmosphere since they generally encounter higher wind speeds, but they face challenges given the complexity of boundary layer flows. This complexity of the lowest layers of the atmosphere, where wind turbines reside, has made conventional modeling efforts less than ideal. To meet the nation's goal of increasing wind power into the U.S. electrical grid, the accuracy of wind power forecasts must be improved. In this report, the Lawrence Livermore National Laboratory, in collaboration with the University of Colorado at Boulder, University of California at Berkeley, and Colorado School of Mines, evaluates innovative approaches to forecasting sudden changes in wind speed or 'ramping events' at an onshore, multimegawatt wind farm. The forecast simulations are compared to observations of wind speed and direction from tall meteorological towers and a remote-sensing Sound Detection and Ranging (SODAR) instrument. Ramping events, i.e., sudden increases or decreases in wind speed and hence, power generated by a turbine, are especially problematic for wind farm operators. Sudden changes in wind speed or direction can lead to large power generation differences across a wind farm and are very difficult to predict with current forecasting tools. Here, we quantify the ability of three models, mesoscale WRF, WRF-LES, and PF.WRF, which vary in sophistication and required user expertise, to predict three ramping events at a North American wind farm.

  2. The Tower Shielding Facility: Its glorious past

    SciTech Connect (OSTI)

    Muckenthaler, F.J.

    1997-05-07T23:59:59.000Z

    The Tower Shielding Facility (TSF) is the only reactor facility in the US that was designed and built for radiation-shielding studies in which both the reactor source and shield samples could be raised into the air to allow measurements to be made without interference from ground scattering or other spurious effects. The TSF proved its usefulness as many different programs were successfully completed. It became active in work for the Defense Atomic Support Agency (DASA) Space Nuclear Auxiliary Power, Defense Nuclear Agency, Liquid Metal Fast Breeder Reactor Program, the Gas-Cooled and High-Temperature Gas-Cooled Reactor programs, and the Japanese-American Shielding Program of Experimental Research, just to mention a few of the more extensive ones. The history of the TSF as presented in this report describes the various experiments that were performed using the different reactors. The experiments are categorized as to the programs which they supported and placed in corresponding chapters. The experiments are described in modest detail, along with their purpose when appropriate. Discussion of the results is minimal, but references are given to more extensive topical reports.

  3. Wind Farm

    Office of Energy Efficiency and Renewable Energy (EERE)

    The wind farm in Greensburg, Kansas, was completed in spring 2010, and consists of ten 1.25 megawatt (MW) wind turbines that supply enough electricity to power every house, business, and municipal...

  4. Wind Energy

    Broader source: Energy.gov [DOE]

    Presentation covers wind energy at the Federal Utility Partnership Working Group (FUPWG) meeting, held on November 18-19, 2009.

  5. Variability of wind power near Oklahoma City and implications for siting of wind turbines

    SciTech Connect (OSTI)

    Kessler, E.; Eyster, R.

    1987-09-01T23:59:59.000Z

    Data from five sites near Oklahoma City were examined to assess wind power availability. Wind turbines of identical manufacture were operated at three of the sites, one of which was also equipped with anemometers on a 100-ft tower. Comprehensive anemometric data were available from the other two sites. The study indicates that the average wind speed varies substantially over Oklahoma's rolling plains, which have often been nominally regarded as flat for purposes of wind power generation. Average wind differences may be as much as 5 mph at 20 ft above ground level, and 7 mph at 100 ft above ground level for elevation differences of about 200 ft above mean sea level, even in the absence of substantial features of local terrain. Local altitude above mean sea level seems to be as influential as the shape of local terrain in determining the average wind speed. The wind turbine used at a meteorologically instrumented site in the study produced the power expected from it for the wind regime in which it was situated. The observed variations of local wind imply variations in annual kWh of as much as a factor of four between identical turbines located at similar heights above ground level in shallow valleys and on hilltops or elevated extended flat areas. 17 refs., 39 figs., 11 tabs.

  6. Upcoming Funding Opportunity for Tower Manufacturing and Installation

    Broader source: Energy.gov [DOE]

    The DOE Wind Program has issued a Notice of Intent for a funding opportunity, tentatively titled U.S. Wind Manufacturing: Taller Hub Heights to Access Higher Wind Resources, and Lower Cost of Energy.

  7. Lake Michigan Offshore Wind Feasibility Assessment

    SciTech Connect (OSTI)

    Boezaart, Arnold [GVSU; Edmonson, James [GVSU; Standridge, Charles [GVSU; Pervez, Nahid [GVSU; Desai, Neel [University of Michigan; Williams, Bruce [University of Delaware; Clark, Aaron [GVSU; Zeitler, David [GVSU; Kendall, Scott [GVSU; Biddanda, Bopi [GVSU; Steinman, Alan [GVSU; Klatt, Brian [Michigan State University; Gehring, J. L. [Michigan State University; Walter, K. [Michigan State University; Nordman, Erik E. [GVSU

    2014-06-30T23:59:59.000Z

    The purpose of this project was to conduct the first comprehensive offshore wind assessment over Lake Michigan and to advance the body of knowledge needed to support future commercial wind energy development on the Great Lakes. The project involved evaluation and selection of emerging wind measurement technology and the permitting, installation and operation of the first mid-lake wind assessment meteorological (MET) facilities in Michigan’s Great Lakes. In addition, the project provided the first opportunity to deploy and field test floating LIDAR and Laser Wind Sensor (LWS) technology, and important research related equipment key to the sitting and permitting of future offshore wind energy development in accordance with public participation guidelines established by the Michigan Great Lakes Wind Council (GLOW). The project created opportunities for public dialogue and community education about offshore wind resource management and continued the dialogue to foster Great Lake wind resource utilization consistent with the focus of the GLOW Council. The technology proved to be effective, affordable, mobile, and the methods of data measurement accurate. The public benefited from a substantial increase in knowledge of the wind resources over Lake Michigan and gained insights about the potential environmental impacts of offshore wind turbine placements in the future. The unique first ever hub height wind resource assessment using LWS technology over water and development of related research data along with the permitting, sitting, and deployment of the WindSentinel MET buoy has captured public attention and has helped to increase awareness of the potential of future offshore wind energy development on the Great Lakes. Specifically, this project supported the acquisition and operation of a WindSentinel (WS) MET wind assessment buoy, and associated research for 549 days over multiple years at three locations on Lake Michigan. Four research objectives were defined for the project including to: 1) test and validate floating LIDAR technology; 2) collect and access offshore wind data; 3) detect and measure bird and bat activity over Lake Michigan; 4) conduct an over water sound propagation study; 5) prepare and offer a college course on offshore energy, and; 6) collect other environmental, bathometric, and atmospheric data. Desk-top research was performed to select anchorage sites and to secure permits to deploy the buoy. The project also collected and analyzed data essential to wind industry investment decision-making including: deploying highly mobile floating equipment to gather offshore wind data; correlating offshore wind data with conventional on-shore MET tower data; and performing studies that can contribute to the advancement and deployment of offshore wind technologies. Related activities included: • Siting, permitting, and deploying an offshore floating MET facility; • Validating the accuracy of floating LWS using near shoreline cup anemometer MET instruments; • Assessment of laser pulse technology (LIDAR) capability to establish hub height measurement of wind conditions at multiple locations on Lake Michigan; • Utilizing an extended-season (9-10 month) strategy to collect hub height wind data and weather conditions on Lake Michigan; • Investigation of technology best suited for wireless data transmission from distant offshore structures; • Conducting field-validated sound propagation study for a hypothetical offshore wind farm from shoreline locations; • Identifying the presence or absence of bird and bat species near wind assessment facilities; • Identifying the presence or absence of benthic and pelagic species near wind assessment facilities; All proposed project activities were completed with the following major findings: • Floating Laser Wind Sensors are capable of high quality measurement and recordings of wind resources. The WindSentinel presented no significant operational or statistical limitations in recording wind data technology at a at a high confidence level as compared to traditional an

  8. Wind Turbine Generator System Duration Test Report for the Gaia-Wind 11 kW Wind Turbine

    SciTech Connect (OSTI)

    Huskey, A.; Bowen, A.; Jager, D.

    2010-09-01T23:59:59.000Z

    This test was conducted as part of the U.S. Department of Energy's (DOE) Independent Testing project. This project was established to help reduce the barriers of wind energy expansion by providing independent testing results for small turbines. In total, five turbines are being tested at the National Renewable Energy Laboratory's (NRELs) National Wind Technology Center (NWTC) as a part of this project. Duration testing is one of up to five tests that may be performed on the turbines, including power performance, safety and function, noise, and power quality tests. The results of the testing will provide the manufacturers with reports that may be used for small wind turbine certification. The test equipment includes a Gaia-Wind 11 kW wind turbine mounted on an 18 m monopole tower. Gaia-Wind Ltd. manufactured the turbine in Denmark, although the company is based in Scotland. The system was installed by the NWTC Site Operations group with guidance and assistance from Gaia-Wind.

  9. Technical Article 38 Plating & Surface Finishing March 2009

    E-Print Network [OSTI]

    Bristol, University of

    are finding increas- ing industrial acceptance in automotive, aerospace and medi- cal applications due, as well as decorative finishes. For automotive and aerospace applications, DLC films may be utilized of the surface, leading to wider application of lighter materials such as titanium and aluminum alloys

  10. Lead-Free Surface Finishes for Electronic Components

    E-Print Network [OSTI]

    Lead-Free Surface Finishes for Electronic Components: Tin Whisker Growth METALS This project degraded by the switch to lead- free technology. In particular, the state of compressive stress and the localized creep response (whisker growth) of tin-based lead-free electrodeposits are being measured

  11. 32539,"AECTRA REFG & MKTG",1,133,"MOTOR GAS, FINISHED UNLEADED...

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

    539,"AECTRA REFG & MKTG",1,133,"MOTOR GAS, FINISHED UNLEADED",1801,"TAMPA, FL","FLORIDA",1,940,"VENEZUELA",77,0,0,,,,, 32539,"AECTRA REFG & MKTG",2,133,"MOTOR GAS, FINISHED...

  12. 33269,"AECTRA REFG & MKTG",1,133,"MOTOR GAS, FINISHED UNLEADED...

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

    269,"AECTRA REFG & MKTG",1,133,"MOTOR GAS, FINISHED UNLEADED",1803,"JACKSONVILLE, FL","FLORIDA",1,940,"VENEZUELA",92,0,0,,,,, 33269,"AECTRA REFG & MKTG",2,133,"MOTOR GAS, FINISHED...

  13. 32904,"AECTRA REFG & MKTG",1,133,"MOTOR GAS, FINISHED UNLEADED...

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

    904,"AECTRA REFG & MKTG",1,133,"MOTOR GAS, FINISHED UNLEADED",1801,"TAMPA, FL","FLORIDA",1,940,"VENEZUELA",175,0,0,,,,, 32904,"AECTRA REFG & MKTG",2,133,"MOTOR GAS, FINISHED...

  14. Cost-effectiveness analysis of effluent standards and limitations for the metal finishing industry. Final report

    SciTech Connect (OSTI)

    Not Available

    1983-06-01T23:59:59.000Z

    The report summarizes the results of a cost-effectiveness analysis of the metal finishing industry. The analysis considers the cost-effectiveness of the final metal finishing regulations for direct and indirect dischargers.

  15. Cooling of hot gases by use of a spray tower 

    E-Print Network [OSTI]

    Pendleton, Elmer Lee

    1958-01-01T23:59:59.000Z

    , These included a sprayhead, number 5B Sprayco, which was located either at the top of the tower (A) or at a position four feet lower in the tower (B), a hot air inlet duct (C), an air outlet duct (D), a multiport gas burner (E), a ceramic checkerwork (F.... ?ne corresnonding m?ss w?s dote?- rrnrei) n-; use ? f su ~ table scales, . ni balances. Thc spec? f? cat iona I' or :j i'- ei' 'one. ? !'. )nws: ? ncp, a! i ' sty . ? i at?i. 'Fl. ? t"nr v: . , c ie. , " F. nu=rc. ured cy Can, " c? 0?ubdzv...

  16. Sandia National Laboratories: Wind

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

    Wind Grid System Planning for Wind: Wind Generator Modeling On June 11, 2014, in Wind generation continues to dominate the interconnection queues and the need for generic,...

  17. Duration Test Report for the Ventera VT10 Wind Turbine

    SciTech Connect (OSTI)

    Smith, J.; Huskey, A.; Jager, D.; Hur, J.

    2013-06-01T23:59:59.000Z

    This project was established to help reduce the barriers of wind energy expansion by providing independent testing results for small wind turbines. Five turbines were tested at the National Wind Technology Center (NWTC) at the National Renewable Energy Laboratory (NREL) as a part of round one of this project. Duration testing is one of up to five tests that may be performed on the turbines, including power performance, safety and function, noise, and power quality. Test results will provide manufacturers with reports that can be used to fulfill part of the requirements for small wind turbine certification. The test equipment included a grid-connected Ventera Energy Corporation VT10 wind turbine mounted on an 18.3-m (60-ft) self-supporting lattice tower manufactured by Rohn.

  18. The Tower of Hanoi and Finite Automata Jean-Paul Allouche and J. Shallit

    E-Print Network [OSTI]

    Shallit, Jeffrey O.

    The Tower of Hanoi and Finite Automata Jean-Paul Allouche and J. Shallit Abstract Some of the algorithms for solving the Tower of Hanoi puzzle can be applied "with eyes closed" or "without memory". Here we survey the solution for the classical tower of Hanoi that uses finite automata, as well as some

  19. UT tower goes dark to conserve energy by KVUE.com

    E-Print Network [OSTI]

    Johnston, Daniel

    UT tower goes dark to conserve energy by KVUE.com Posted on November 22, 2013 at 5:12 PM Updated, but the first time the tower turned off its lights for the initiative. In previous initiatives, the UT Energy Friday, Nov 22 at 5:51 PM AUSTIN -- The University of Texas tower will remain unlit Friday night

  20. Radiometric Modeling of Mechanical Draft Cooling Towers to Assist in the Extraction of their Absolute Temperature

    E-Print Network [OSTI]

    Salvaggio, Carl

    of Mechanical Draft Cooling Towers to Assist in the Extraction of their Absolute Temperature from Remote Thermal Abstract Determination of the internal temperature of a mechanical draft cooling tower (MDCT) from remotelyRadiometric Modeling of Mechanical Draft Cooling Towers to Assist in the Extraction

  1. P9.5 THERMOCOUPLE TEMPERATURE MEASUREMENTS FROM THE CASES-99 MAIN TOWER

    E-Print Network [OSTI]

    Burns, Sean

    P9.5 THERMOCOUPLE TEMPERATURE MEASUREMENTS FROM THE CASES-99 MAIN TOWER Sean P. Burns #3-m tower located east of Leon, Kansas (latitude 37 Æ 38.88'N, lon- gitude 96 Æ 44.14'W). These data aspirated, slow-response tem- perature sensors maintained by ATD on the tower. These air temperature

  2. IMU Activities Tower Application and Contract 1 Indiana Memorial Union, Room 270

    E-Print Network [OSTI]

    Indiana University

    IMU Activities Tower Application and Contract 1 Indiana Memorial Union, Room 270 Bloomington space in the Student Activities Tower of the Indiana Memorial Union to student organizations registered Board office--located on the second floor of the Student Activities Tower-- IMU Room 270. Even if you

  3. The Ivory Tower: the history of a figure of speech and its cultural uses

    E-Print Network [OSTI]

    Shapin, Steven

    The Ivory Tower: the history of a figure of speech and its cultural uses STEVEN SHAPIN* Abstract. This is a historical survey of how and why the notion of the Ivory Tower became part of twentieth- and twenty in the ancient debate between the active and contemplative lives. Holy ivory There never was an Ivory Tower

  4. THE GOODWILLIE TOWER OF THE IDENTITY IS A GREG ARONE AND MARJA KANKAANRINTA

    E-Print Network [OSTI]

    Bielefeld, University of

    THE GOODWILLIE TOWER OF THE IDENTITY IS A LOGARITHM GREG ARONE AND MARJA KANKAANRINTA April 6, 1995 Abstract. We offer the point of view that the Goodwillie tower of the identity functor is a formal inverse The Goodwillie tower of the identity (see [2, 3, 4] for a general reference on the Goodwillie calculus

  5. Airport Tower Automation With the construction of Bergstrom International Airport in South Austin, the FAA has

    E-Print Network [OSTI]

    Browne, James C.

    Airport Tower Automation With the construction of Bergstrom International Airport in South Austin, air traffic pattern, and incoming airplanes. The control system will be called the "tower. Collisions most often occur during take-offs or landings, so the tower must ensure proper spacing between

  6. Semistable Models of Curves Resolution of singularities on the tower of modular

    E-Print Network [OSTI]

    Semistable Models of Curves Resolution of singularities on the tower of modular curves Jared on the tower of modular curves #12;Semistable Models of Curves Semistable models: Definition Let R Resolution of singularities on the tower of modular curves #12;Semistable Models of Curves Semistable models

  7. School of Dentistry Skourtes Tower: named $10 million 200-Seat Auditorium: named $500,000

    E-Print Network [OSTI]

    Chapman, Michael S.

    School of Dentistry Skourtes Tower: named $10 million 200-Seat Auditorium: named $500,000 Floor 1 Tower Floor 8: Pre-doctoral Clinic Space: named $5 million Pre-Doctoral Integrated Group (IGP) Practices $75,000 Skourtes Tower Floor 9: Pre-doctoral Clinic Space: named $5 million Pre-doctoral Integrated

  8. Estimation of advective fluxes from CO2 flux profile observations at the Cabauw Tower

    E-Print Network [OSTI]

    Stoffelen, Ad

    Estimation of advective fluxes from CO2 flux profile observations at the Cabauw Tower Kasper O profile observations at the Cabauw Tower Version 1.0 Date April 2012 Status Final #12;#12;Estimation of Advective Fluxes from CO2 Flux Profile Observations at the Cabauw Tower Master of Science Thesis Kasper O

  9. THE TOWER FOUNDATION OF SAN JOSE STATE UNIVERSITY Procurement Card Application

    E-Print Network [OSTI]

    Eirinaki, Magdalini

    THE TOWER FOUNDATION OF SAN JOSE STATE UNIVERSITY Procurement Card Application CARDHOLDER card is lost or stolen, I will notify the Tower Foundation immediately. I will surrender my Procurement Card to Tower Foundation upon termination of employment or upon reallocation of duties which do

  10. 654revision:2000-01-30modified:2000-02-01 THE AUTOMORPHISM TOWER PROBLEM REVISITED

    E-Print Network [OSTI]

    Shelah, Saharon

    654revision:2000-01-30modified:2000-02-01 THE AUTOMORPHISM TOWER PROBLEM REVISITED WINFRIED JUST, SAHARON SHELAH, AND SIMON THOMAS Abstract. It is well-known that the automorphism towers of infinite) = 1. In particular, Aut G is also a centreless group. This enables us to define the automorphism tower

  11. Summer 2014 A publication of the OHSU School of Dentistry Alumni Association Hello, Skourtes Tower

    E-Print Network [OSTI]

    Chapman, Michael S.

    Summer 2014 A publication of the OHSU School of Dentistry Alumni Association Hello, Skourtes Tower are securely into our new space, the Skourtes Tower OHSU School of Dentistry in the Collaborative Life Sciences. The Skourtes Tower facility is going to match the quality of our faculty and students, and it is going

  12. THE AUTOMORPHISM TOWER PROBLEM REVISITED WINFRIED JUST, SAHARON SHELAH, AND SIMON THOMAS

    E-Print Network [OSTI]

    Thomas, Simon

    THE AUTOMORPHISM TOWER PROBLEM REVISITED WINFRIED JUST, SAHARON SHELAH, AND SIMON THOMAS Abstract.It is well-known that the automorphism towers of infinite centr* *e Gffwith InnGffvia the natural embedding.) The automorphism tower is said to terminate if there exists

  13. Overcoming the Boundary Layer Turbulence at Dome C: Ground-Layer Adaptive Optics versus Tower

    E-Print Network [OSTI]

    Ashley, Michael C. B.

    Overcoming the Boundary Layer Turbulence at Dome C: Ground-Layer Adaptive Optics versus Tower T the boundary layer: mounting a telescope on a tower that physically puts it above the turbulent layer such a goal, two solutions can be proposed. The most intuitive one is to place a telescope on a tower

  14. Wind power application for low flow irrigation from the Edwards-Trinity aquifer of West Texas

    E-Print Network [OSTI]

    Molla, Saiful Islam

    1997-01-01T23:59:59.000Z

    Attempts were made to reduce the cost of energy for irrigation in West Texas. To do this two wind turbines of 10 kW size were installed in Garden City and Stiles, Texas to pump water. The turbines were installed on 30 m towers. The pumping water...

  15. Wind power application for low flow irrigation from the Edwards-Trinity aquifer of West Texas 

    E-Print Network [OSTI]

    Molla, Saiful Islam

    1997-01-01T23:59:59.000Z

    Attempts were made to reduce the cost of energy for irrigation in West Texas. To do this two wind turbines of 10 kW size were installed in Garden City and Stiles, Texas to pump water. The turbines were installed on 30 m towers. The pumping water...

  16. Data Center Economizer Cooling with Tower Water; Demonstration of a

    E-Print Network [OSTI]

    LBNL-6660E Data Center Economizer Cooling with Tower Water; Demonstration of a Dual Heat Exchanger program and by the Assistant Secretary for Energy Efficiency and Renewable Energy, Building Technologies heat exchangers was demonstrated to illustrate an energy efficient cooling capability. This unique

  17. Solar Power Tower Design Basis Document, Revision 0

    SciTech Connect (OSTI)

    ZAVOICO,ALEXIS B.

    2001-07-01T23:59:59.000Z

    This report contains the design basis for a generic molten-salt solar power tower. A solar power tower uses a field of tracking mirrors (heliostats) that redirect sunlight on to a centrally located receiver mounted on top a tower, which absorbs the concentrated sunlight. Molten nitrate salt, pumped from a tank at ground level, absorbs the sunlight, heating it up to 565 C. The heated salt flows back to ground level into another tank where it is stored, then pumped through a steam generator to produce steam and make electricity. This report establishes a set of criteria upon which the next generation of solar power towers will be designed. The report contains detailed criteria for each of the major systems: Collector System, Receiver System, Thermal Storage System, Steam Generator System, Master Control System, and Electric Heat Tracing System. The Electric Power Generation System and Balance of Plant discussions are limited to interface requirements. This design basis builds on the extensive experience gained from the Solar Two project and includes potential design innovations that will improve reliability and lower technical risk. This design basis document is a living document and contains several areas that require trade-studies and design analysis to fully complete the design basis. Project- and site-specific conditions and requirements will also resolve open To Be Determined issues.

  18. Performance characteristics of an induced draft, counterflow, spray cooling tower

    E-Print Network [OSTI]

    Jones, Charles Edward

    1951-01-01T23:59:59.000Z

    in Figuno 1. These entrance bells wore previously calibrated. by means of the pitot tube traverse method. Air flow mct r pressure readings were obtained by means of inclined . " aft gages graduated to 3. 31 inch of' water. Air was drawn through the tower...

  19. Multi-objective optimization of solar tower heliostat fields

    E-Print Network [OSTI]

    Ábrahám, Erika

    the heat. Usually, the heat of the fluid is exchanged into steam which powers a turbine to generate Introduction Solar tower plants generate electric power from sunlight by focusing concentrated solar radiation. Designing commercial power plants aims always at finding the most economic plant design under a given set

  20. The Postnikov tower in motivic stable homotopy theory

    E-Print Network [OSTI]

    's slice tower #12;Categories of spaces Fix a field k (perfect?). · Spc := the category of simplicial sets: "spaces". · Spc(k) := the category of presheaves of spaces on Sm/k: "spaces over k". · Pointed versions Spc, Spc(k). Spc Spc(k): S "constant presheaf" S. Sm/k Spc(k): X "representable presheaf" Y Hom

  1. 800mm luxury : pencil tower phenomenon in Hong Kong, China

    E-Print Network [OSTI]

    Yam, Hiu Lan

    2012-01-01T23:59:59.000Z

    150m2 - 40m2 - 60m3. Pencil Towers are slender pencil-like apartment buildings. They are commonly found in high-dense Asian cities such as Hong Kong, Tokyo and Singapore. Focusing on Hong Kong as the context of research, ...

  2. Offshore Wind Power USA

    Broader source: Energy.gov [DOE]

    The Offshore Wind Power USA conference provides the latest offshore wind market updates and forecasts.

  3. The Leaning Tower illusion: a new illusion of perspectiveThe Leaning Tower illusion: a new illusion of perspective We would like to describe a new illusion of perspective that to our knowledge has

    E-Print Network [OSTI]

    Kingdom, Frederick A. A.

    The Leaning Tower illusion: a new illusion of perspectiveThe Leaning Tower illusion: a new illusion reported before. Figure 1 shows two images of the Leaning Tower of Pisa placed next to one another. One obtains a strong impression that the tower on the right leans more, as if photographed from a different

  4. 20% Wind Energy 20% Wind Energy

    E-Print Network [OSTI]

    Powell, Warren B.

    (government, industry, utilities, NGOs) Analyzes wind's potential contributions to energy security, economic · Transmission a challenge #12;Wind Power Class Resource Potential Wind Power Density at 50 m W/m 2 Wind Speed20% Wind Energy by 2030 20% Wind Energy by 2030 #12;Presentation and Objectives Overview Background

  5. Wind Energy Leasing Handbook

    E-Print Network [OSTI]

    Balasundaram, Balabhaskar "Baski"

    Wind Energy Leasing Handbook Wind Energy Leasing Handbook E-1033 Oklahoma Cooperative Extension?..................................................................................................................... 31 What do wind developers consider in locating wind energy projects?............................................................................................ 37 How do companies and individuals invest in wind energy projects?....................................................................

  6. EA-1966: Sunflower Wind Project, Hebron, North Dakota

    Broader source: Energy.gov [DOE]

    Western Area Power Administration (Western) prepared an EA to evaluate potential environmental impacts of interconnecting a proposed 80 MW generating facility south of Hebron in Morton and Stark Counties, North Dakota. The proposed wind generating facility of 30-50 wind turbines encompassed approximately 9,000 acres. Ancillary facilities included an underground collection line system, a project substation, one mile of new transmission line, a new switchyard facility on the existing Dickinson-Mandan 230 kV line owned and operated by Western, one permanent meteorological tower, new access roads, and an operations and maintenance building.

  7. Great Plains Wind Energy Transmission Development Project

    SciTech Connect (OSTI)

    Brad G. Stevens, P.E.; Troy K. Simonsen; Kerryanne M. Leroux

    2012-06-09T23:59:59.000Z

    In fiscal year 2005, the Energy & Environmental Research Center (EERC) received funding from the U.S. Department of Energy (DOE) to undertake a broad array of tasks to either directly or indirectly address the barriers that faced much of the Great Plains states and their efforts to produce and transmit wind energy at the time. This program, entitled Great Plains Wind Energy Transmission Development Project, was focused on the central goal of stimulating wind energy development through expansion of new transmission capacity or development of new wind energy capacity through alternative market development. The original task structure was as follows: Task 1 - Regional Renewable Credit Tracking System (later rescoped to Small Wind Turbine Training Center); Task 2 - Multistate Transmission Collaborative; Task 3 - Wind Energy Forecasting System; and Task 4 - Analysis of the Long-Term Role of Hydrogen in the Region. As carried out, Task 1 involved the creation of the Small Wind Turbine Training Center (SWTTC). The SWTTC, located Grand Forks, North Dakota, consists of a single wind turbine, the Endurance S-250, on a 105-foot tilt-up guyed tower. The S-250 is connected to the electrical grid on the 'load side' of the electric meter, and the power produced by the wind turbine is consumed locally on the property. Establishment of the SWTTC will allow EERC personnel to provide educational opportunities to a wide range of participants, including grade school through college-level students and the general public. In addition, the facility will allow the EERC to provide technical training workshops related to the installation, operation, and maintenance of small wind turbines. In addition, under Task 1, the EERC hosted two small wind turbine workshops on May 18, 2010, and March 8, 2011, at the EERC in Grand Forks, North Dakota. Task 2 involved the EERC cosponsoring and aiding in the planning of three transmission workshops in the midwest and western regions. Under Task 3, the EERC, in collaboration with Meridian Environmental Services, developed and demonstrated the efficacy of a wind energy forecasting system for use in scheduling energy output from wind farms for a regional electrical generation and transmission utility. With the increased interest at the time of project award in the production of hydrogen as a critical future energy source, many viewed hydrogen produced from wind-generated electricity as an attractive option. In addition, many of the hydrogen production-related concepts involve utilization of energy resources without the need for additional electrical transmission. For this reason, under Task 4, the EERC provided a summary of end uses for hydrogen in the region and focused on one end product in particular (fertilizer), including several process options and related economic analyses.

  8. Manuscript received for review, February 2008; accepted for publication, SIX CENTURIES OF FIRE HISTORY AT DEVILS TOWER

    E-Print Network [OSTI]

    Stambaugh, Michael C

    OF FIRE HISTORY AT DEVILS TOWER NATIONAL MONUMENT WITH COMMENTS ON REGIONWIDE TEMPERATURE INFLUENCE-0985 ABSTRACT--This study documents over six centuries of historic fire events at Devils Tower National Monu­climate relationships derived from Devils Tower, the Black Hills, and other Great Plains sites suggest that Devils Tower

  9. PowerJet Wind Turbine Project

    SciTech Connect (OSTI)

    Bartlett, Raymond J

    2008-11-30T23:59:59.000Z

    PROJECT OBJECTIVE The PowerJet wind turbine overcomes problems characteristic of the small wind turbines that are on the market today by providing reliable output at a wide range of wind speeds, durability, silent operation at all wind speeds, and bird-safe operation. Prime Energy�s objective for this project was to design and integrate a generator with an electrical controller and mechanical controls to maximize the generation of electricity by its wind turbine. The scope of this project was to design, construct and test a mechanical back plate to control rotational speed in high winds, and an electronic controller to maximize power output and to assist the base plate in controlling rotational speed in high winds. The test model will continue to operate beyond the time frame of the project, with the ultimate goal of manufacturing and marketing the PowerJet worldwide. Increased Understanding of Electronic & Mechanical Controls Integrated With Electricity Generator The PowerJet back plate begins to open as wind speed exceeds 13.5 mps. The pressure inside the turbine and the turbine rotational speed are held constant. Once the back plate has fully opened at approximately 29 mps, the controller begins pulsing back to the generator to limit the rotational speed of the turbine. At a wind speed in excess of 29 mps, the controller shorts the generator and brings the turbine to a complete stop. As the wind speed subsides, the controller releases the turbine and it resumes producing electricity. Data collection and instrumentation problems prevented identification of the exact speeds at which these events occur. However, the turbine, controller and generator survived winds in excess of 36 mps, confirming that the two over-speed controls accomplished their purpose. Technical Effectiveness & Economic Feasibility Maximum Electrical Output The output of electricity is maximized by the integration of an electronic controller and mechanical over-speed controls designed and tested during the course of this project. The output exceeds that of the PowerJet�s 3-bladed counterparts (see Appendix). Durability All components of the PowerJet turbine assembly�including the electronic and mechanical controls designed, manufactured and field tested during the course of this project�proved to be durable through severe weather conditions, with constant operation and no interruption in energy production. Low Cost Materials for the turbine, generator, tower, charge controllers and ancillary parts are available at reasonable prices. Fabrication of these parts is also readily available worldwide. The cost of assembling and installing the turbine is reduced because it has fewer parts and requires less labor to manufacture and assemble, making it competitively priced compared with turbines of similar output manufactured in the U.S. and Europe. The electronic controller is the unique part to be included in the turbine package. The controllers can be manufactured in reasonably-sized production runs to keep the cost below $250 each. The data logger and 24 sensors are for research only and will be unnecessary for the commercial product. Benefit To Public The PowerJet wind-electric system is designed for distributed wind generation in 3 and 4 class winds. This wind turbine meets DOE�s requirements for a quiet, durable, bird-safe turbine that eventually can be deployed as a grid-connected generator in urban and suburban settings. Results As described more fully below and illustrated in the Appendices, the goals and objectives outlined in 2060 SOPO were fully met. Electronic and mechanical controls were successfully designed, manufactured and integrated with the generator. The turbine, tower, controllers and generators operated without incident throughout the test period, surviving severe winter and summer weather conditions such as extreme temperatures, ice and sustained high winds. The electronic controls were contained in weather-proof electrical boxes and the elec

  10. Winding Trail 

    E-Print Network [OSTI]

    Unknown

    2011-09-05T23:59:59.000Z

    During the past decade, the demand for clean renewable energy continues to rise drastically in Europe, the US, and other countries. Wind energy in the ocean can possibly be one of those future renewable clean energy sources as long...

  11. Wind turbine generator with improved operating subassemblies

    DOE Patents [OSTI]

    Cheney, Jr., Marvin C. (24 Stonepost Rd., Glastonbury, CT 06033)

    1985-01-01T23:59:59.000Z

    A wind turbine includes a yaw spring return assembly to return the nacelle from a position to which it has been rotated by yawing forces, thus preventing excessive twisting of the power cables and control cables. It also includes negative coning restrainers to limit the bending of the flexible arms of the rotor towards the tower, and stop means on the rotor shaft to orient the blades in a vertical position during periods when the unit is upwind when the wind commences. A pendulum pitch control mechanism is improved by orienting the pivot axis for the pendulum arm at an angle to the longitudinal axis of its support arm, and excessive creep is of the synthetic resin flexible beam support for the blades is prevented by a restraining cable which limits the extent of pivoting of the pendulum during normal operation but which will permit further pivoting under abnormal conditions to cause the rotor to stall.

  12. Wind Energy Benefits, Wind Powering America (WPA) (Fact Sheet...

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

    Energy Benefits, Wind Powering America (WPA) (Fact Sheet), Wind And Water Power Program (WWPP) Wind Energy Benefits, Wind Powering America (WPA) (Fact Sheet), Wind And Water Power...

  13. Structure of Magnetic Tower Jets in Stratified Atmospheres

    E-Print Network [OSTI]

    Masanori Nakamura; Hui Li; Shengtai Li

    2006-08-15T23:59:59.000Z

    Based on a new approach on modeling the magnetically dominated outflows from AGNs (Li et al. 2006), we study the propagation of magnetic tower jets in gravitationally stratified atmospheres (such as a galaxy cluster environment) in large scales ($>$ tens of kpc) by performing three-dimensional magnetohydrodynamic (MHD) simulations. We present the detailed analysis of the MHD waves, the cylindrical radial force balance, and the collimation of magnetic tower jets. As magnetic energy is injected into a small central volume over a finite amount of time, the magnetic fields expand down the background density gradient, forming a collimated jet and an expanded ``lobe'' due to the gradually decreasing background density and pressure. Both the jet and lobes are magnetically dominated. In addition, the injection and expansion produce a hydrodynamic shock wave that is moving ahead of and enclosing the magnetic tower jet. This shock can eventually break the hydrostatic equilibrium in the ambient medium and cause a global gravitational contraction. This contraction produces a strong compression at the head of the magnetic tower front and helps to collimate radially to produce a slender-shaped jet. At the outer edge of the jet, the magnetic pressure is balanced by the background (modified) gas pressure, without any significant contribution from the hoop stress. On the other hand, along the central axis of the jet, hoop stress is the dominant force in shaping the central collimation of the poloidal current. The system, which possesses a highly wound helical magnetic configuration, never quite reaches a force-free equilibrium state though the evolution becomes much slower at late stages. The simulations were performed without any initial perturbations so the overall structures of the jet remain mostly axisymmetric.

  14. Wind Turbinie Generator System Power Performance Test Report for the Mariah Windspire 1-kW Wind Turbine

    SciTech Connect (OSTI)

    Huskey, A.; Bowen, A.; Jager, D.

    2009-12-01T23:59:59.000Z

    This report summarizes the results of a power performance test that NREL conducted on the Mariah Windspire 1-kW wind turbine. During this test, two configurations were tested on the same turbine. In the first configuration, the turbine inverter was optimized for power production. In the second configuration, the turbine inverter was set for normal power production. In both configurations, the inverter experienced failures and the tests were not finished.

  15. Evaluation of Wind Shear Patterns at Midwest Wind Energy Facilities: Preprint

    SciTech Connect (OSTI)

    Smith, K.; Randall, G.; Malcolm, D.; Kelley, N.; Smith, B.

    2002-05-01T23:59:59.000Z

    The U.S. Department of Energy-Electric Power Research Institute (DOE-EPRI) Wind Turbine Verification Program (TVP) has included several wind energy facilities in the Midwestern United States. At several of these projects, a strong diurnal shear pattern has been observed. During the day, low and sometimes negative shear has been measured. During night hours, very high positive shear is frequently observed. These high nighttime shear values are of concern due to the potential for high stresses across the rotor. The resulting loads on turbine components could result in failures. Conversely, the effects of high nighttime wind shear could benefit wind generated energy production in the Midwest by providing a source of greater hub-height wind speeds, particularly for multi-megawatt turbines that utilize tall towers. This paper presents an overview of the observed wind shear at each of the Midwest TVP projects, focusing on diurnal patterns and the frequency of very high nighttime shear at the sites. Turbine fault incidence is examined to determine the presence or absence of a correlation to periods of high shear. Implications of shear-related failures are discussed for other Midwest projects that use megawatt-scale turbines. In addition, this paper discusses the importance of accurate shear estimates for project development.

  16. Economics of specialized integrated swine finishing operation in the Texas Panhandle

    E-Print Network [OSTI]

    Cavin, Guyle Earl

    1971-01-01T23:59:59.000Z

    of Department (Member) (Member) C (Member) December 1971 ABSTRACT Economics of Specialized Swine Finishing Operation in the Texas Panhandle. (December 1971) Guyle Earl Cavin, B. S. , Texas Afd1 University Directed by: Dr. Donald E. Ferris The purpose... and finishing stage of production. The objectives of the study were to determine: (1) if a supply of good quality relatively disease-free feeder pigs is available in a supply sufficient to furnish an expanded increase in the swine finishing industry, (2...

  17. Energy 101: Wind Turbines

    ScienceCinema (OSTI)

    None

    2013-05-29T23:59:59.000Z

    See how wind turbines generate clean electricity from the power of the wind. Highlighted are the various parts and mechanisms of a modern wind turbine.

  18. WIND DATA REPORT Mattapoisett

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Mattapoisett Mattapoisett, Massachusetts December 1, 2006 ­ February 28, 2007...................................................................................................................... 9 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distributions

  19. Energy 101: Wind Turbines

    SciTech Connect (OSTI)

    None

    2011-01-01T23:59:59.000Z

    See how wind turbines generate clean electricity from the power of the wind. Highlighted are the various parts and mechanisms of a modern wind turbine.

  20. High Flux Isotopes Reactor (HFIR) Cooling Towers Demolition Waste Management

    SciTech Connect (OSTI)

    Pudelek, R. E.; Gilbert, W. C.

    2002-02-26T23:59:59.000Z

    This paper describes the results of a joint initiative between Oak Ridge National Laboratory, operated by UT-Battelle, and Bechtel Jacobs Company, LLC (BJC) to characterize, package, transport, treat, and dispose of demolition waste from the High Flux Isotope Reactor (HFIR), Cooling Tower. The demolition and removal of waste from the site was the first critical step in the planned HFIR beryllium reflector replacement outage scheduled. The outage was scheduled to last a maximum of six months. Demolition and removal of the waste was critical because a new tower was to be constructed over the old concrete water basin. A detailed sampling and analysis plan was developed to characterize the hazardous and radiological constituents of the components of the Cooling Tower. Analyses were performed for Resource Conservation and Recovery Act (RCRA) heavy metals and semi-volatile constituents as defined by 40 CFR 261 and radiological parameters including gross alpha, gross beta, gross gamma, alpha-emitting isotopes and beta-emitting isotopes. Analysis of metals and semi-volatile constituents indicated no exceedances of regulatory limits. Analysis of radionuclides identified uranium and thorium and associated daughters. In addition 60Co, 99Tc, 226Rm, and 228Rm were identified. Most of the tower materials were determined to be low level radioactive waste. A small quantity was determined not to be radioactive, or could be decontaminated. The tower was dismantled October 2000 to January 2001 using a detailed step-by-step process to aid waste segregation and container loading. The volume of waste as packaged for treatment was approximately 1982 cubic meters (70,000 cubic feet). This volume was comprised of plastic ({approx}47%), wood ({approx}38%) and asbestos transite ({approx}14%). The remaining {approx}1% consisted of the fire protection piping (contaminated with lead-based paint) and incidental metal from conduit, nails and braces/supports, and sludge from the basin. The waste, except for the asbestos, was volume reduced via a private contract mechanism established by BJC. After volume reduction, the waste was packaged for rail shipment. This large waste management project successfully met cost and schedule goals.

  1. Wind power and Wind power and

    E-Print Network [OSTI]

    Wind power and the CDM #12; Wind power and the CDM Emerging practices in developing wind power 2005 Jyoti P. Painuly, Niels-Erik Clausen, Jørgen Fenhann, Sami Kamel and Romeo Pacudan #12; WIND POWER AND THE CDM Emerging practices in developing wind power projects for the Clean Development Mechanism Energy

  2. Workers Create Demolition Zone at Hanford Site’s Plutonium Finishing Plant

    Broader source: Energy.gov [DOE]

    RICHLAND, Wash. – In recent weeks, the look of Hanford site’s Plutonium Finishing Plant has changed as crews removed or demolished eight buildings surrounding it.

  3. DTRA Algorithm Prize (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)

    SciTech Connect (OSTI)

    Whitechurch, Christian [Defense Threat Reduction Agency] [Defense Threat Reduction Agency

    2012-06-01T23:59:59.000Z

    Christian Whitchurch on the "DTRA Algorithm Prize" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

  4. Voluntary Protection Program Onsite Review, Plutonium Finishing Plant Closure Project- May 2007

    Broader source: Energy.gov [DOE]

    Evaluation to determine whether Plutonium Finishing Plant Closure Project is continuing to perform at a level deserving DOE-VPP Star recognition.

  5. DTRA Algorithm Prize (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)

    ScienceCinema (OSTI)

    Whitechurch, Christian [Defense Threat Reduction Agency

    2013-02-12T23:59:59.000Z

    Christian Whitchurch on the "DTRA Algorithm Prize" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

  6. Wind turbine

    DOE Patents [OSTI]

    Cheney, Jr., Marvin C. (Glastonbury, CT)

    1982-01-01T23:59:59.000Z

    A wind turbine of the type having an airfoil blade (15) mounted on a flexible beam (20) and a pitch governor (55) which selectively, torsionally twists the flexible beam in response to wind turbine speed thereby setting blade pitch, is provided with a limiter (85) which restricts unwanted pitch change at operating speeds due to torsional creep of the flexible beam. The limiter allows twisting of the beam by the governor under excessive wind velocity conditions to orient the blades in stall pitch positions, thereby preventing overspeed operation of the turbine. In the preferred embodiment, the pitch governor comprises a pendulum (65,70) which responds to changing rotor speed by pivotal movement, the limiter comprising a resilient member (90) which engages an end of the pendulum to restrict further movement thereof, and in turn restrict beam creep and unwanted blade pitch misadjustment.

  7. The energy market is diversifying. In addition to traditional power sources, decision makers can choose among solar, wind, and

    E-Print Network [OSTI]

    the steps of analyzing the energy outputs and economics of a solar, wind, or geothermal project. NREL power towers. SAM even calculates the value of saved energy from a domestic solar water heating systeminnovati n The energy market is diversifying. In addition to traditional power sources, decision

  8. A comparison of predicted wind turbine blade loads to test measurements

    SciTech Connect (OSTI)

    Wright, A.D.; Thresher, R.W.

    1987-01-01T23:59:59.000Z

    The accurate prediction of wind turbine blade loads and response is important in predicting the fatigue life of wind machines. At the SERI Wind Energy Research Center, a rotor code called FLAP (Force and Loads Analysis Program) is currently being validated by comparing predicted results to machine measurements. The FLAP code has been modified to allow the teetering degrees of freedom. This paper describes these modifications and comparisons of predicted blade bending moments to test measurements. Wind tunnel data for a 1/20th scale model will be used to compare FLAP predictions for the cyclic flap-bending moments at the 33% spanwise station for three different wind speeds. The comparisons will be made for both rigid and teetering hubs. Currently, the FLAP code accounts for deterministic excitations such as wind shear, tower shadow, gravity, and prescribed yawing motions. Conclusions will be made regarding the code's accuracy in predicting the cyclic bending moments.

  9. On the Teichmuller tower of mapping class groups Allen Hatcher, Pierre Lochak and Leila Schneps

    E-Print Network [OSTI]

    Schneps, Leila

    On the Teichmuller tower of mapping class groups Allen Hatcher, Pierre Lochak and Leila Schneps;nition of d GT 1 , and show that #3; acts on the tower of pro#12;nite mapping class groups bm g;n for all sketch our version of this history. A Teichmuller tower consists of a collection of (algebraic, i.e. pro

  10. Wind Power

    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'sis Taking Over OurThe Iron SpinPrincetonUsingWhat is abig world of tinyWind Industry SoarsWind

  11. Plutonium Finishing Plant. Interim plutonium stabilization engineering study

    SciTech Connect (OSTI)

    Sevigny, G.J.; Gallucci, R.H.; Garrett, S.M.K.; Geeting, J.G.H.; Goheen, R.S.; Molton, P.M.; Templeton, K.J.; Villegas, A.J. [Pacific Northwest Lab., Richland, WA (United States); Nass, R. [Nuclear Fuel Services, Inc. (United States)

    1995-08-01T23:59:59.000Z

    This report provides the results of an engineering study that evaluated the available technologies for stabilizing the plutonium stored at the Plutonium Finishing Plant located at the hanford Site in southeastern Washington. Further processing of the plutonium may be required to prepare the plutonium for interim (<50 years) storage. Specifically this document provides the current plutonium inventory and characterization, the initial screening process, and the process descriptions and flowsheets of the technologies that passed the initial screening. The conclusions and recommendations also are provided. The information contained in this report will be used to assist in the preparation of the environmental impact statement and to help decision makers determine which is the preferred technology to process the plutonium for interim storage.

  12. Utilization of horse beans by growing finishing pigs after tryptophan supplementation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Utilization of horse beans by growing finishing pigs after tryptophan supplementation Y. HENRY D., i83511 Jouy en Josas Utilization of whole horse-beans in growing-finishing pig diets was studied in presence of niacine or not, in the case of partial or almost total replacement of soya- bean meal bv horse-beans

  13. Rebuilding the Tower of Babel: An introduction to freshman composition

    E-Print Network [OSTI]

    Davis, Karen

    1978-01-01T23:59:59.000Z

    . 8 CKlly, y~c'1Dt ~:A~c~dht 0 E * d~cf t (Gl t, 111. : ~ t, 9 d 0 1972), p. 3. 9 Walker Gibson, ~Seein and ~Writin , 2nd ed. (New York: David McKay Co. , Inc, 1974), p. iii. 10 K M '(, ~CD (N Y k: Hyd E kC . , 19707, p. 27. Kelly, "Toward... Rebuilding the Tower of Babel: An Introduction to Freshman Composition. (May 1978) Karen Davis, B. A. , Southwest Texas State University Chairman of Advisory Committee: Dr. Forrest Dean Burt New teachers of composition need a handbook to supplement...

  14. Concentrating Solar Power Tower System Basics | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011AT&T, Inc.'sEnergyTexas1.Space DataEnergyCompressed AirEnergy »Tower

  15. Microsoft Word - PowerTower_work_2009.doc

    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 82981-1cnHighandSWPA / SPRA / USACE LMI-EFRCAddendumNo. 1 Contract No.Tower R&D

  16. Upcoming Funding Opportunity for Tower Manufacturing and Installation |

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently20,000 Russian Nuclear Warheads intoMansoor Ghassem )Department of Energy for Tower

  17. Optimizing Cooling Tower Performance Refrigeration Systems, Chemical Plants, and Power Plants All Have A Resource Quietly Awaiting Exploitation-Cold Water!!

    E-Print Network [OSTI]

    Burger, R.

    requirements before a cooling tower is purchased. This relates to the volume of circulating water, hot water temperature on the tower, cold water discharge, and wet bulb temperature (consisting of ambient temperature and relative humidity). After the tower...

  18. ON THE STRUCTURE AND STABILITY OF MAGNETIC TOWER JETS

    SciTech Connect (OSTI)

    Huarte-Espinosa, M.; Frank, A.; Blackman, E. G. [Department of Physics and Astronomy, University of Rochester, 600 Wilson Boulevard, Rochester, NY 14627-0171 (United States); Ciardi, A. [LERMA, Universite Pierre et Marie Curie, Observatoire de Paris, F-92195 Meudon (France); Hartigan, P. [Department of Physics and Astronomy, Rice University, 6100 S. Main, Houston, TX 77521-1892 (United States); Lebedev, S. V.; Chittenden, J. P. [Blackett Laboratory, Imperial College London, SW7 2BW London (United Kingdom)

    2012-09-20T23:59:59.000Z

    Modern theoretical models of astrophysical jets combine accretion, rotation, and magnetic fields to launch and collimate supersonic flows from a central source. Near the source, magnetic field strengths must be large enough to collimate the jet requiring that the Poynting flux exceeds the kinetic energy flux. The extent to which the Poynting flux dominates kinetic energy flux at large distances from the engine distinguishes two classes of models. In magneto-centrifugal launch models, magnetic fields dominate only at scales {approx}< 100 engine radii, after which the jets become hydrodynamically dominated (HD). By contrast, in Poynting flux dominated (PFD) magnetic tower models, the field dominates even out to much larger scales. To compare the large distance propagation differences of these two paradigms, we perform three-dimensional ideal magnetohydrodynamic adaptive mesh refinement simulations of both HD and PFD stellar jets formed via the same energy flux. We also compare how thermal energy losses and rotation of the jet base affects the stability in these jets. For the conditions described, we show that PFD and HD exhibit observationally distinguishable features: PFD jets are lighter, slower, and less stable than HD jets. Unlike HD jets, PFD jets develop current-driven instabilities that are exacerbated as cooling and rotation increase, resulting in jets that are clumpier than those in the HD limit. Our PFD jet simulations also resemble the magnetic towers that have been recently created in laboratory astrophysical jet experiments.

  19. Wind Technologies & Evolving Opportunities (Presentation)

    SciTech Connect (OSTI)

    Robichaud, R.

    2014-07-01T23:59:59.000Z

    This presentation covers opportunities for wind technology; wind energy market trends; an overview of the National Wind Technology Center near Boulder, Colorado; wind energy price and cost trends; wind turbine technology improvements; and wind resource characterization improvements.

  20. Repairs to silence Tower bells | The Daily Texan http://dailytexanonline.com/news/2012/09/27/repairs-to-silence-tower-bells 2 of 4 10/2/2012 8:55 AM

    E-Print Network [OSTI]

    John, Lizy Kurian

    Repairs to silence Tower bells | The Daily Texan http://dailytexanonline.com/news/2012/09/27/repairs-to-silence-tower-bells 2 of 4 10/2/2012 8:55 AM #12;Repairs to silence Tower bells | The Daily Texan http://dailytexanonline.com/news/2012/09/27/repairs-to-silence-tower-bells 3 of 4 10/2/2012 8

  1. 2015 Iowa Wind Power Conference and Iowa Wind Energy Association...

    Energy Savers [EERE]

    2015 Iowa Wind Power Conference and Iowa Wind Energy Association Midwest Regional Energy Job Fair 2015 Iowa Wind Power Conference and Iowa Wind Energy Association Midwest Regional...

  2. Community Wind Handbook/Understand Your Wind Resource and Conduct...

    Open Energy Info (EERE)

    Conduct a Preliminary Estimate < Community Wind Handbook Jump to: navigation, search WIND ENERGY STAKEHOLDER ENGAGEMENT & OUTREACHCommunity Wind Handbook WindTurbine-icon.png...

  3. American Wind Energy Association Wind Energy Finance and Investment...

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

    American Wind Energy Association Wind Energy Finance and Investment Seminar American Wind Energy Association Wind Energy Finance and Investment Seminar October 20, 2014 8:00AM EDT...

  4. GreenCache: Augmenting Off-the-Grid Cellular Towers with Multimedia Caches

    E-Print Network [OSTI]

    Shenoy, Prashant

    or commercial advantage and that copies bear this notice and the full citation on the first page. To copy to run cellular towers "off the grid" [4]. Today's "off the grid" cellu- lar towers operate off diesel with expensive and "dirty" diesel fuel. S

  5. Method and system for simulating heat and mass transfer in cooling towers

    DOE Patents [OSTI]

    Bharathan, Desikan (Lakewood, CO); Hassani, A. Vahab (Golden, CO)

    1997-01-01T23:59:59.000Z

    The present invention is a system and method for simulating the performance of a cooling tower. More precisely, the simulator of the present invention predicts values related to the heat and mass transfer from a liquid (e.g., water) to a gas (e.g., air) when provided with input data related to a cooling tower design. In particular, the simulator accepts input data regarding: (a) cooling tower site environmental characteristics; (b) cooling tower operational characteristics; and (c) geometric characteristics of the packing used to increase the surface area within the cooling tower upon which the heat and mass transfer interactions occur. In providing such performance predictions, the simulator performs computations related to the physics of heat and mass transfer within the packing. Thus, instead of relying solely on trial and error wherein various packing geometries are tested during construction of the cooling tower, the packing geometries for a proposed cooling tower can be simulated for use in selecting a desired packing geometry for the cooling tower.

  6. PIPE CLEANER TOWERS ACTIVITY Contributors: Dr. Laura Bottomley & Heather Smolensky Page 1 of 2

    E-Print Network [OSTI]

    -12+ Group Size: 3-4 Time Required: 15-20 minutes Mest-Up Factor: 1 (Setup and Mess Factor: 1 to 10 scale materials to build the tallest, free standing tower within the time constraints and using the efforts of all-tech' materials to build the tallest, free standing tower that they can within certain time constraints. Check

  7. Daily Texan April 1, 2014 Keeping Tower dark for Earth Hour was

    E-Print Network [OSTI]

    John, Lizy Kurian

    of the University's Energy and Water Conservation program, said the Tower going dark was a gesture similarDaily Texan April 1, 2014 Keeping Tower dark for Earth Hour was intended to raise awareness British thermal units, of natural gas. According to the University's Utilities and Energy Management

  8. Request for Degree Certification Exception Office of the Registrar, University of Memphis, 003 Wilder Tower / Ph: 678-2810

    E-Print Network [OSTI]

    Dasgupta, Dipankar

    Wilder Tower / Ph: 678-2810 A Tennessee Board of Regents Institution An Equal Opportunity, 003 Wilder Tower. Reset S E L E C T O N E: #12;

  9. System and method for aligning heliostats of a solar power tower

    DOE Patents [OSTI]

    Convery, Mark R.

    2013-01-01T23:59:59.000Z

    Disclosed is a solar power tower heliostat alignment system and method that includes a solar power tower with a focal area, a plurality of heliostats that each reflect sunlight towards the focal area of the solar power tower, an off-focal area location substantially close to the focal area of the solar power tower, a communication link between the off-focal area location and a misaligned heliostat, and a processor that interprets the communication between the off-focal area location and the misaligned heliostat to identify the misaligned heliostat from the plurality of heliostats and that determines a correction for the identified misaligned heliostat to realign the misaligned heliostat to reflect sunlight towards the focal area of the solar power tower.

  10. 2010 Wind Technologies Market Report

    E-Print Network [OSTI]

    Wiser, Ryan

    2012-01-01T23:59:59.000Z

    Public Service Wind Integration Cost Impact Study. Preparedequipment-related wind turbine costs, the overall importinstalled wind power project costs, wind turbine transaction

  11. 2009 Wind Technologies Market Report

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01T23:59:59.000Z

    Public Service Wind Integration Cost Impact Study. Preparedinstalled wind power project costs, wind turbine transactionand components and wind turbine costs. Excluded from all

  12. Sandia National Laboratories: wind energy

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

    Wind Energy Manufacturing Lab Helps Engineers Improve Wind Power On November 15, 2011, in Energy, News, Partnership, Renewable Energy, Wind Energy Researchers at the Wind Energy...

  13. Module Handbook Specialisation Wind Energy

    E-Print Network [OSTI]

    Habel, Annegret

    ;Specialisation Wind Energy, NTU Athens, 2nd Semester Module 1/Wind Energy: Wind potential, Aerodynamics & Loading of Wind Turbines Module name: Wind potential, Aerodynamics & Loading of Wind Turbines Section Classes Evaluation of Wind Energy Potential Wind turbine Aerodynamics Static and dynamic Loading of Wind turbines

  14. Development of Fully Coupled Aeroelastic and Hydrodynamic Models for Offshore Wind Turbines: Preprint

    SciTech Connect (OSTI)

    Jonkman, J. M.; Sclavounos, P. D.

    2006-01-01T23:59:59.000Z

    Aeroelastic simulation tools are routinely used to design and analyze onshore wind turbines, in order to obtain cost effective machines that achieve favorable performance while maintaining structural integrity. These tools employ sophisticated models of wind-inflow; aerodynamic, gravitational, and inertial loading of the rotor, nacelle, and tower; elastic effects within and between components; and mechanical actuation and electrical responses of the generator and of control and protection systems. For offshore wind turbines, additional models of the hydrodynamic loading in regular and irregular seas, the dynamic coupling between the support platform motions and wind turbine motions, and the dynamic characterization of mooring systems for compliant floating platforms are also important. Hydrodynamic loading includes contributions from hydrostatics, wave radiation, and wave scattering, including free surface memory effects. The integration of all of these models into comprehensive simulation tools, capable of modeling the fully coupled aeroelastic and hydrodynamic responses of floating offshore wind turbines, is presented.

  15. 'Tower of Babel' technology nears The problem of compatibility between wireless devices is being addressed at an

    E-Print Network [OSTI]

    Bressler, Steven L.

    'Tower of Babel' technology nears The problem of compatibility between wireless devices is being "Tower of Babel" technology - software that can converge different wireless gadgets into a single device and Computers is being held, said: "SDR is what one could call a Tower of Babel-type technology

  16. tall tower facility and instrumentation New coNstraiNts oN the Nitrous oxide budget of agricultural ecosystems

    E-Print Network [OSTI]

    Minnesota, University of

    tall tower facility and instrumentation New coNstraiNts oN the Nitrous oxide budget of agricultural approach involves multiple tunable diode laser (TDL) spectroscopy systems, a tall tower, automated chambers hectare. Measurements are also made at the tall tower trace gas observatory (TGO) located at RROC

  17. 1201 Lake Robbins Drive The Woodlands, Texas 77380 (832) 636-1000 DIRECTIONS TO THE ANADARKO TOWER

    E-Print Network [OSTI]

    Behmer, Spencer T.

    TOWER From Houston: Exit Woodlands Parkway (Exit 76B) fly-over from I-45 North. Turn right onto Woodloch entrance to the tower is the third entry on the right. Follow the directions to Visitor Parking. From right into the Tower entrance. Follow the directions to Visitor Parking. From Bush Intercontinental

  18. Methane efflux from boreal wetlands: Theory and testing of the ecosystem model Ecosys with chamber and tower flux measurements

    E-Print Network [OSTI]

    Roulet, Nigel T.

    and tower flux measurements R. F. Grant Department of Renewable Resources, University of Alberta, Edmonton tower at a beaver pond in the BOREAS Northern Study Area. Spatial and temporal variation of CH4 effluxes in the model encompassed that measured by surface chambers and the flux tower. Both modeled and measured CH4

  19. ECE DEPARTMENT TOWER Through the team effort of Professor's Michael Carter and Richard Messner, Kingsbury Hall has

    E-Print Network [OSTI]

    New Hampshire, University of

    ECE DEPARTMENT TOWER Through the team effort of Professor's Michael Carter and Richard Messner, Kingsbury Hall has sprouted a new 70 foot antenna tower this summer, which will expand the capabilities laboratory exercises in software-defined radio, the new tower will host an experimental MIMO cellular base

  20. Classification and storage of wastewater from floor finish removal operations

    SciTech Connect (OSTI)

    Hunt, C.E.

    1996-05-01T23:59:59.000Z

    This study evaluates the wastewater generated from hard surface floor finish removal operations at Lawrence Livermore Laboratory in order to determine if this wastewater is a hazardous waste, either by statistical evaluation, or other measurable regulatory guidelines established in California Regulations. This research also comparatively evaluates the 55 gallon drum and other portable tanks, all less than 1,000 gallons in size in order to determine which is most effective for the management of this waste stream at Lawrence Livermore Laboratory. The statistical methods in SW-846 were found to be scientifically questionable in their application to hazardous waste determination. In this statistical evaluation, the different data transformations discussed in the regulatory guidance document were applied along with the log transformation to the population of 18 samples from 55 gallon drums. Although this statistical evaluation proved awkward in its application, once the data is collected and organized on a spreadsheet this statistical analysis can be an effective tool which can aid the environmental manager in the hazardous waste classification process.

  1. Fire hazard analysis for Plutonium Finishing Plant complex

    SciTech Connect (OSTI)

    MCKINNIS, D.L.

    1999-02-23T23:59:59.000Z

    A fire hazards analysis (FHA) was performed for the Plutonium Finishing Plant (PFP) Complex at the Department of Energy (DOE) Hanford site. The scope of the FHA focuses on the nuclear facilities/structures in the Complex. The analysis was conducted in accordance with RLID 5480.7, [DOE Directive RLID 5480.7, 1/17/94] and DOE Order 5480.7A, ''Fire Protection'' [DOE Order 5480.7A, 2/17/93] and addresses each of the sixteen principle elements outlined in paragraph 9.a(3) of the Order. The elements are addressed in terms of the fire protection objectives stated in paragraph 4 of DOE 5480.7A. In addition, the FHA also complies with WHC-CM-4-41, Fire Protection Program Manual, Section 3.4 [1994] and WHC-SD-GN-FHA-30001, Rev. 0 [WHC, 1994]. Objectives of the FHA are to determine: (1) the fire hazards that expose the PFP facilities, or that are inherent in the building operations, (2) the adequacy of the fire safety features currently located in the PFP Complex, and (3) the degree of compliance of the facility with specific fire safety provisions in DOE orders, related engineering codes, and standards.

  2. Maintenance implementation plan for the Plutonium Finishing Plant. Revision 3

    SciTech Connect (OSTI)

    Meldrom, C.A.

    1996-03-01T23:59:59.000Z

    This document outlines the Maintenance Implementation Plan (MIP) for the Plutonium Finishing Plant (PFP) located at the Hanford site at Richland, Washington. This MIP describes the PFP maintenance program relative to DOE order 4330.4B. The MIP defines the key actions needed to meet the guidelines of the Order to produce a cost-effective and efficient maintenance program. A previous report identified the presence of significant quantities of Pu-bearing materials within PFP that pose risks to workers. PFP`s current mission is to develop, install and operate processes which will mitigate these risks. The PFP Maintenance strategy is to equip the facility with systems and equipment able to sustain scheduled PFP operations. The current operating run is scheduled to last seven years. Activities following the stabilization operation will involve an Environmental Impact Statement (EIS) to determine future plant activities. This strategy includes long-term maintenance of the facility for safe occupancy and material storage. The PFP maintenance staff used the graded approach to dictate the priorities of the improvement and upgrade actions identified in Chapter 2 of this document. The MIP documents PFP compliance to the DOE 4330.4B Order. Chapter 2 of the MIP follows the format of the Order in addressing the eighteen elements. As this revision is a total rewrite, no sidebars are included to highlight changes.

  3. Pollution prevention and water conservation in metals finishing operations

    SciTech Connect (OSTI)

    O`Shaughnessy, J.; Clark, W. [Worcester Polytechnic Inst., MA (United States); Lizotte, R.P. Jr.; Mikutel, D. [Texas Instruments Inc., Attleboro, MA (United States)

    1996-11-01T23:59:59.000Z

    Attleboro, Massachusetts is the headquarters of the Materials and Controls Group of Texas Instruments Incorporated (Texas Instruments). In support of their activities, Texas Instruments operates a number of metal finishing and electroplating processes. The water supply and the wastewater treatment requirements are supplied throughout the facility from a central location. Water supply quality requirements varies with each manufacturing operation. As a result, manufacturing operations are classified as either high level or a lower water quality. The facility has two methods of wastewater treatment and disposal. The first method involves hydroxide and sulfide metals precipitation prior to discharge to a surface water. The second method involves metals precipitation, filtration, and discharge via sewer to the Attleboro WTF. The facility is limited to a maximum wastewater discharge of 460,000 gallons per day to surface water under the existing National Pollution Discharge Elimination System (NPDES) permit. There is also a hydraulic flow restriction on pretreated wastewater that is discharged to the Attleboro WTF. Both of these restrictions combined with increased production could cause the facility to reach the treatment capacity. The net effect is that wastewater discharge problems are becoming restrictive to the company`s growth. This paper reviews Texas Instruments efforts to overcome these restrictions through pollution prevention and reuse practices rather than expansion of end of pipe treatment methods.

  4. Wind Integration

    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 SolStrengtheningWildfires may contribute more to global warmingGlobal »Wind

  5. Wind Power

    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 >Internship Program TheSiteEurekaWeekly UserWhat's New Today aboutWind

  6. A study of a cooling tower with variable packing heights 

    E-Print Network [OSTI]

    Khan, A. M. M. Farid

    1957-01-01T23:59:59.000Z

    for the uc;x oe of . 'f ~'F. CF 'SC L'. . INC 2 August 1957 i ajor: ', iechanical Zn;. :tneering A Stud. ;; of a Coolinp, Tower with Variable Packin- Heights A Thesis li. Vi. Farid Khan Approved as to style and. content by: Chaxrman of Commi tee... the Departm;. nt i~lonth Year fLCI inc)'&lr ' JGL&)) 'n fi3 a J thor ', ;laili . . io ila&' ' I. ' ~)oi&al J ?'. )' e . I al, &Lip & vi &or Heal ' oA'c '&I'oup oI . e& Ds !:I&Ei 1''el Ills i. oi&I'I'ei jb : taei i&n for i'urili li&i 1. ?a& rial anu equip...

  7. Solar two: A molten salt power tower demonstration

    SciTech Connect (OSTI)

    Tyner, C.E. [Sandia National Labs., Albuquerque, NM (United States); Sutherland, J.P. [Southern California Edison, Rosemead, CA (United States); Gould, W.R. Jr. [Bechtel Corp., San Francisco, CA (United States)

    1995-08-01T23:59:59.000Z

    A consortium of United States utility concerns led by the Southern California Edison Company (SCE) is conducting a cooperative project with the US Department of Energy (DOE), Sandia National Laboratories, and industry to convert the 10-MW Solar One Power Tower Pilot Plant to molten nitrate salt technology. The conversion involves installation of a new receiver, a new thermal storage system, and a new steam generator; it utilizes Solar One`s heliostat field and turbine generator. Successful operation of the converted plant, called Solar Two, will reduce economic risks in building initial commercial power tow projects and accelerate the commercial acceptance of this promising renewable energy technology. The estimated cost of Solar Two, including its three-year test period, is $48.5 million. The plant will begin operation in early 1996.

  8. On the quantum analogue of Galileo's leaning tower experiment

    E-Print Network [OSTI]

    Md. Manirul Ali; A. S. Majumdar; Dipankar Home; Alok Kumar Pan

    2006-10-14T23:59:59.000Z

    The quantum analogue of Galileo's leaning tower experiment is revisited using wave packets evolving under the gravitational potential. We first calculate the position detection probabilities for particles projected upwards against gravity around the classical turning point and also around the point of initial projection, which exhibit mass dependence at both these points. We then compute the mean arrival time of freely falling particles using the quantum probability current, which also turns out to be mass dependent. The mass dependence of both the position detection probabilities and the mean arrival time vanish in the limit of large mass. Thus, compatibility between the weak equivalence principle and quantum mechanics is recovered in the macroscopic limit of the latter.

  9. Towering oak, the sun - porch house winner of the ''1982 German research award''

    SciTech Connect (OSTI)

    Berndt, G.W.P.

    1983-12-01T23:59:59.000Z

    The design for this energy-efficient house was developed to suit a benign climate with much rain, wind, and fog. The building's basic construction guarantees the most limited energy-use possible. This is achieved through a unique houseform, which encloses and warms the living spaces with a thick thermal coat: walls = 6'' semi-rigid glass fiber boards, R-19; roof = 10'' foil faced fiber glass, R = 30. Windows are located only on the south side, to ensure optimal sun-ray capture. The housefront consists of a ''sun-porch'' (Sonnenhof), which is a further development of the well-known German ''Wintergarten'' (winter garden). In this climate region, one can only expect a yearly average of five days with a summer temperature of over 25/sup 0/C (77/sup 0/F); however, with a ''sun-porch'' the summer can make itself at home. In winter, the ''sun-porch'' protects against storms and always offers temperatures above the 7/sup 0/C (45/sup 0/F) minimum, a product of the compact roof and double glass with selective coating. On sunny winter days, one may even dine on the balconies. The estimation technique represented here is based on a procedure devised at the Los Alamos Scientific Laboratory, New Mexico, (Passive Solar Handbook, Vol. 2, J.D. Balcomb). ''Towering Oak's'' solar savings fraction = 49.0%; heating load = 2.56 BTU/sq. ft. Better results have yet to be achieved in Germany. In the USA, this could be increased to a solar fraction of up to 90%. Some modifications would, however, be necessary to suit the local climate (sun control devices, etc.).

  10. Flue gas injection control of silica in cooling towers.

    SciTech Connect (OSTI)

    Brady, Patrick Vane; Anderson, Howard L., Jr.; Altman, Susan Jeanne

    2011-06-01T23:59:59.000Z

    Injection of CO{sub 2}-laden flue gas can decrease the potential for silica and calcite scale formation in cooling tower blowdown by lowering solution pH to decrease equilibrium calcite solubility and kinetic rates of silica polymerization. Flue gas injection might best inhibit scale formation in power plant cooling towers that use impaired makeup waters - for example, groundwaters that contain relatively high levels of calcium, alkalinity, and silica. Groundwaters brought to the surface for cooling will degas CO{sub 2} and increase their pH by 1-2 units, possibly precipitating calcite in the process. Recarbonation with flue gas can lower the pHs of these fluids back to roughly their initial pH. Flue gas carbonation probably cannot lower pHs to much below pH 6 because the pHs of impaired waters, once outgassed at the surface, are likely to be relatively alkaline. Silica polymerization to form scale occurs most rapidly at pH {approx} 8.3 at 25 C; polymerization is slower at higher and lower pH. pH 7 fluids containing {approx}220 ppm SiO{sub 2} require > 180 hours equilibration to begin forming scale whereas at pH 8.3 scale formation is complete within 36 hours. Flue gas injection that lowers pHs to {approx} 7 should allow substantially higher concentration factors. Periodic cycling to lower recoveries - hence lower silica concentrations - might be required though. Higher concentration factors enabled by flue gas injection should decrease concentrate volumes and disposal costs by roughly half.

  11. Midwest Consortium for Wind Turbine Reliability and Optimization

    SciTech Connect (OSTI)

    Scott R. Dana; Douglas E. Adams; Noah J. Myrent

    2012-05-11T23:59:59.000Z

    This report provides an overview of the efforts aimed to establish a student focused laboratory apparatus that will enhance Purdue's ability to recruit and train students in topics related to the dynamics, operations and economics of wind turbines. The project also aims to facilitate outreach to students at Purdue and in grades K-12 in the State of Indiana by sharing wind turbine operational data. For this project, a portable wind turbine test apparatus was developed and fabricated utilizing an AirX 400W wind energy converter. This turbine and test apparatus was outfitted with an array of sensors used to monitor wind speed, turbine rotor speed, power output and the tower structural dynamics. A major portion of this project included the development of a data logging program used to display real-time sensor data and the recording and creation of output files for data post-processing. The apparatus was tested in an open field to subject the turbine to typical operating conditions and the data acquisition system was adjusted to obtain desired functionality to facilitate use for student projects in existing courses offered at Purdue University and Indiana University. Data collected using the data logging program is analyzed and presented to demonstrate the usefulness of the test apparatus related to wind turbine dynamics and operations.

  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. Wind Power Today

    SciTech Connect (OSTI)

    Not Available

    2006-05-01T23:59:59.000Z

    Wind Power Today is an annual publication that provides an overview of the wind energy research conducted by the U.S. Department of Energy Wind and Hydropower Technologies Program.

  14. Wind Power Today

    SciTech Connect (OSTI)

    Not Available

    2007-05-01T23:59:59.000Z

    Wind Power Today is an annual publication that provides an overview of the wind energy research conducted by the U.S. Department of Energy Wind and Hydropower Technologies Program.

  15. Sunflower Wind Farm EA

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

    Sunflower Wind Farm EA Sunflower Wind Farm Draft EA (25mb pdf) Note: If you have problems downloading this file, pelase contact Lou Hanebury at (406) 255-2812 Sunflower Wind Farm...

  16. Sustainable Energy Solutions Task 5.1:Expand the Number of Faculty Working in Wind Energy: Wind Energy Supply Chain and Logistics

    SciTech Connect (OSTI)

    Janet M Twomey, PhD

    2010-04-30T23:59:59.000Z

    EXECUTIVE SUMARRY Wind as a source of energy has gained a significant amount of attention because it is free and green. Construction of a wind farm involves considerable investment, which includes the cost of turbines, nacelles, and towers as well as logistical costs such as transportation of oversized parts and installation costs such as crane-rental costs. The terrain effects at the project site exert considerable influence on the turbine assembly rate and the project duration, which increases the overall installation cost. For higher capacity wind turbines (>3MW), the rental cost of the cranes is significant. In this study, the impact of interest rate, sales price of electricity, terrain effects and availability of cranes on the duration of installation and payback period for the project is analyzed. Optimization of the logistic activities involved during the construction phase of a wind farm contributes to the reduction of the project duration and also increases electricity generation during the construction phase.

  17. 35461,"AECTRA REFG & MKTG",1,152,"MOTOR GAS, OTHER FINISHED"...

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

    461,"AECTRA REFG & MKTG",1,152,"MOTOR GAS, OTHER FINISHED",1803,"JACKSONVILLE, FL","FLORIDA",1,340,"FINLAND",50,0,0,,,,, 35461,"AECTRA REFG & MKTG",2,152,"MOTOR GAS, OTHER...

  18. 33634,"AECTRA REFG & MKTG",1,133,"MOTOR GAS, FINISHED UNLEADED...

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

    634,"AECTRA REFG & MKTG",1,133,"MOTOR GAS, FINISHED UNLEADED",1803,"JACKSONVILLE, FL","FLORIDA",1,940,"VENEZUELA",239,0,0,,,,, 33634,"AECTRA REFG & MKTG",2,134,"MOTOR GAS BLENDING...

  19. 36556,"AECTRA REFG & MKTG",1,152,"MOTOR GAS, OTHER FINISHED"...

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

    556,"AECTRA REFG & MKTG",1,152,"MOTOR GAS, OTHER FINISHED",1803,"JACKSONVILLE, FL","FLORIDA",1,940,"VENEZUELA",230,0,0 36556,"AECTRA REFG & MKTG",2,461,"DISTILLATE, < 0.05% SUL...

  20. 36191,"AECTRA REFG & MKTG",1,152,"MOTOR GAS, OTHER FINISHED"...

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

    191,"AECTRA REFG & MKTG",1,152,"MOTOR GAS, OTHER FINISHED",1803,"JACKSONVILLE, FL","FLORIDA",1,940,"VENEZUELA",115,0,0 36191,"AECTRA REFG & MKTG",2,152,"MOTOR GAS, OTHER...

  1. Signature Peptide-Enabled Metagenomics (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)

    ScienceCinema (OSTI)

    McMahon, Ben [LANL

    2013-01-25T23:59:59.000Z

    Ben McMahon of Los Alamos National Laboratory (LANL) presents "Signature Peptide-Enabled Metagenomics" at the 7th Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting held in June, 2012 in Santa Fe, NM.

  2. Pilon: Automated Assembly Improvement Software (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)

    ScienceCinema (OSTI)

    Walker, Bruce (Broad Institute)

    2013-02-11T23:59:59.000Z

    Bruce Walker on "Pilon: Automated Assembly Improvement Software" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

  3. Feeding Value of Wet Sorghum Distillers Grains for Growing and Finishing Beef Cattle

    E-Print Network [OSTI]

    Feeding Value of Wet Sorghum Distillers Grains for Growing and Finishing Beef Cattle Ethanol, but sorghum grain is commonly either blended with corn before use or used as the sole grain for ethanol

  4. Use of Optical Mapping to Aid in Assembly and Finishing of Human Microbiome Genome Projects

    SciTech Connect (OSTI)

    Wagner, Trevor [OpGen, Inc

    2010-06-03T23:59:59.000Z

    Trevor Wagner of OpGen, Inc. discusses the use of optical mapping to validate the assembly of HMP genomes on June 3, 2010 at the "Sequencing, Finishing, Analysis in the Future" meeting in Santa Fe, NM

  5. Tool Path Planning Generation For Finish Machining of Freeform Surfaces in the Cybercut Process Planning Pipeline

    E-Print Network [OSTI]

    Wright, Paul K; Dornfeld, David; Sundararajan, V.; Misra, Debananda

    2007-01-01T23:59:59.000Z

    CYBERCUT PROCESS PLANNING PIPELINE Paul K. Wright, David A.describes part of a "Pipeline of De- sign and Manufacturingversus surface finish. 2.5D PIPELINE AND 3D SURFACES Figure

  6. Sources of biological variation in residual feed intake in growing and finishing steers 

    E-Print Network [OSTI]

    Brown, Erin Gwen

    2006-04-12T23:59:59.000Z

    Objectives of this research were to characterize residual feed intake (RFI) in growing and finishing steers and examine phenotypic correlations between performance, feed efficiency, carcass, digestib ility, and physiological ...

  7. Deactivation and decommissioning environmental strategy for the Plutonium Finishing Plant (PFP) Complex Hanford Nuclear Reservation

    SciTech Connect (OSTI)

    HOPKINS, A.M.

    2003-02-01T23:59:59.000Z

    The overall goal of this strategy is to comply with all applicable environmental laws and regulations and/or compliance agreements during Plutonium Finishing Plant (PFP) stabilization, deactivation, and eventual dismantlement.

  8. Metagenomics for Etiologic Agent Discovery (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)

    ScienceCinema (OSTI)

    Ross, Matthew [Baylor College of Medicine

    2013-02-11T23:59:59.000Z

    Matthew Ross on "Metagenomics for etiological agent discovery" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

  9. The use of real-time off-site observations as a methodology for increasing forecast skill in prediction of large wind power ramps one or more hours ahead of their impact on a wind plant.

    SciTech Connect (OSTI)

    Martin Wilde, Principal Investigator

    2012-12-31T23:59:59.000Z

    ABSTRACT Application of Real-Time Offsite Measurements in Improved Short-Term Wind Ramp Prediction Skill Improved forecasting performance immediately preceding wind ramp events is of preeminent concern to most wind energy companies, system operators, and balancing authorities. The value of near real-time hub height-level wind data and more general meteorological measurements to short-term wind power forecasting is well understood. For some sites, access to onsite measured wind data - even historical - can reduce forecast error in the short-range to medium-range horizons by as much as 50%. Unfortunately, valuable free-stream wind measurements at tall tower are not typically available at most wind plants, thereby forcing wind forecasters to rely upon wind measurements below hub height and/or turbine nacelle anemometry. Free-stream measurements can be appropriately scaled to hub-height levels, using existing empirically-derived relationships that account for surface roughness and turbulence. But there is large uncertainty in these relationships for a given time of day and state of the boundary layer. Alternatively, forecasts can rely entirely on turbine anemometry measurements, though such measurements are themselves subject to wake effects that are not stationary. The void in free-stream hub-height level measurements of wind can be filled by remote sensing (e.g., sodar, lidar, and radar). However, the expense of such equipment may not be sustainable. There is a growing market for traditional anemometry on tall tower networks, maintained by third parties to the forecasting process (i.e., independent of forecasters and the forecast users). This study examines the value of offsite tall-tower data from the WINDataNOW Technology network for short-horizon wind power predictions at a wind farm in northern Montana. The presentation shall describe successful physical and statistical techniques for its application and the practicality of its application in an operational setting. It shall be demonstrated that when used properly, the real-time offsite measurements materially improve wind ramp capture and prediction statistics, when compared to traditional wind forecasting techniques and to a simple persistence model.

  10. Wind/Hydro Study

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

    WindHydro Integration Feasibility Study Announcements (Updated July 8, 2010) The Final WindHydro Integration Feasibility Study Report, dated June 2, 2009, has been submitted to...

  11. Wind energy bibliography

    SciTech Connect (OSTI)

    None

    1995-05-01T23:59:59.000Z

    This bibliography is designed to help the reader search for information on wind energy. The bibliography is intended to help several audiences, including engineers and scientists who may be unfamiliar with a particular aspect of wind energy, university researchers who are interested in this field, manufacturers who want to learn more about specific wind topics, and librarians who provide information to their clients. Topics covered range from the history of wind energy use to advanced wind turbine design. References for wind energy economics, the wind energy resource, and environmental and institutional issues related to wind energy are also included.

  12. Wind Turbine Tribology Seminar

    Broader source: Energy.gov [DOE]

    Wind turbine reliability issues are often linked to failures of contacting components, such as bearings, gears, and actuators. Therefore, special consideration to tribological design in wind...

  13. Commonwealth Wind Incentive Program – Micro Wind Initiative

    Broader source: Energy.gov [DOE]

    Through the Commonwealth Wind Incentive Program – Micro Wind Initiative the Massachusetts Clean Energy Center (MassCEC) offers rebates of up to $4/W with a maximum of $130,000 for design and...

  14. Structural effects of unsteady aerodynamic forces on horizontal-axis wind turbines

    SciTech Connect (OSTI)

    Miller, M.S.; Shipley, D.E. [Univ. of Colorado, Boulder, CO (United States). BioServe Space Technologies

    1994-08-01T23:59:59.000Z

    Due to its renewable nature and abundant resources, wind energy has the potential to fulfill a large portion of this nation`s energy needs. The simplest means of utilizing wind energy is through the use of downwind, horizontal-axis wind turbines (HAWT) with fixed-pitch rotors. This configuration regulates the peak power by allowing the rotor blade to aerodynamically stall. The stall point, the point of maximum coefficient of lift, is currently predicted using data obtained from wind tunnel tests. Unfortunately, these tests do not accurately simulate conditions encountered in the field. Flow around the tower and nacelle coupled with inflow turbulence and rotation of the turbine blades create unpredicted aerodynamic forces. Dynamic stall is hypothesized to occur. Such aerodynamic loads are transmitted into the rotor and tower causing structural resonance that drastically reduces the design lifetime of the wind turbine. The current method of alleviating this problem is to structurally reinforce the tower and blades. However, this adds unneeded mass and, therefore, cost to the turbines. A better understanding of the aerodynamic forces and the manner in which they affect the structure would allow for the design of more cost effective and durable wind turbines. Data compiled by the National Renewable Energy Laboratory (NREL) for a downwind HAWT with constant chord, untwisted, fixed-pitch rotors is analyzed. From these data, the actual aerodynamic characteristics of the rotor are being portrayed and the potential effects upon the structure can for the first time be fully analyzed. Based upon their understanding, solutions to the problem of structural resonance are emerging.

  15. Evaluation of a mathematical model in predicting intake of growing and finishing cattle

    E-Print Network [OSTI]

    Bourg, Brandi Marie

    2009-05-15T23:59:59.000Z

    EVALUATIONS OF A MATHEMATICAL MODEL IN PREDICTING INTAKE OF GROWING AND FINISHING CATTLE A Thesis by BRANDI MARIE BOURG 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 2007 Major Subject: Animal Science EVALUATIONS OF A MATHEMATICAL MODEL IN PREDICTING INTAKE OF GROWING AND FINISHING CATTLE A Thesis by BRANDI MARIE BOURG Submitted...

  16. Evaluation of a mathematical model in predicting intake of growing and finishing cattle

    E-Print Network [OSTI]

    Bourg, Brandi Marie

    2008-10-10T23:59:59.000Z

    EVALUATIONS OF A MATHEMATICAL MODEL IN PREDICTING INTAKE OF GROWING AND FINISHING CATTLE A Thesis by BRANDI MARIE BOURG 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 2007 Major Subject: Animal Science EVALUATIONS OF A MATHEMATICAL MODEL IN PREDICTING INTAKE OF GROWING AND FINISHING CATTLE A Thesis by BRANDI MARIE BOURG Submitted...

  17. Technical Basis for Work Place Air Monitoring for the Plutonium Finishing Plan (PFP)

    SciTech Connect (OSTI)

    JONES, R.A.

    1999-10-06T23:59:59.000Z

    This document establishes the basis for the Plutonium Finishing Plant's (PFP) work place air monitoring program in accordance with the following requirements: Title 10, Code of Federal Regulations (CFR), Part 835 ''Occupational Radiation Protection''; Hanford Site Radiological Control Manual (HSRCM-1); HNF-PRO-33 1, Work Place Air Monitoring; WHC-SD-CP-SAR-021, Plutonium Finishing Plant Final Safety Analysis Report; and Applicable recognized national standards invoked by DOE Orders and Policies.

  18. 2008 WIND TECHNOLOGIES MARKET REPORT

    E-Print Network [OSTI]

    Bolinger, Mark

    2010-01-01T23:59:59.000Z

    States. Specifically, Bluewater Wind and Delmarva PowerLLC Babcock & Brown Acquisition Bluewater Wind Good Energies

  19. 2008 WIND TECHNOLOGIES MARKET REPORT

    E-Print Network [OSTI]

    Bolinger, Mark

    2010-01-01T23:59:59.000Z

    policy support for other renewable energy sources, wind mayrenewable energy and climate policy initiatives. With wind

  20. On The N-Tower-Problem and Related Problems F.Thomas Bruss Guy Louchard y John W.Turner z

    E-Print Network [OSTI]

    Louchard, Guy

    On The N-Tower-Problem and Related Problems F.Thomas Bruss #3; Guy Louchard y John W.Turner z November 12, 2002 Abstract N towers contain initially n i (i = 1; 2; :::N) counters. At each step a tower is chosen at random, a counter removed which is then added to another tower also chosen at random

  1. Wind Resource Assessment in Europe Using Emergy

    E-Print Network [OSTI]

    Paudel, Subodh; Santarelli, Massimo; Martin, Viktoria; Lacarriere, Bruno; Le Corre, Olivier

    2014-01-01T23:59:59.000Z

    mance characteristics of wind generator. The wind speed atcharacteristics of the wind generator. When wind speed is

  2. Advanced Coal Wind Hybrid: Economic Analysis

    E-Print Network [OSTI]

    Phadke, Amol

    2008-01-01T23:59:59.000Z

    Wind Generation2006. “ Integrating Wind Generation into Utility Systems”.Stand-Alone Wind Generation . 60

  3. MONITORING OF CRACKS ON THE BELL TOWER OF ST. ANASTASIA CATHEDRAL IN ZADAR CROATIA

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    MONITORING OF CRACKS ON THE BELL TOWER OF ST. ANASTASIA CATHEDRAL IN ZADAR CROATIA Davor Uglesi 1 , Uros Bohinc 2 1 D & Z doo, Jerolima Vidulia 7, 23000 Zadar, Croatia 2 ZAG, Dimiceva 12, 1000 Ljubljana

  4. LODGING IN MILFORD AREA Accomodations 10 20 minutes from Grey Towers

    E-Print Network [OSTI]

    LODGING IN MILFORD AREA Accomodations 10 ­ 20 minutes from Grey Towers: Best Western Inn 120 Rtes-4414 Westfall's Motel Rtes. 6 & 209 Milford, PA 18337 (570) 491-4344 #12;Accomodations 20 ­ 30 minutes from Grey

  5. BREN Tower: A Monument to the Material Culture of Radiation Dosimetry Research

    SciTech Connect (OSTI)

    Susan Edwards

    2008-05-30T23:59:59.000Z

    With a height of more than 1,500 feet, the BREN (Bare Reactor Experiment, Nevada) Tower dominates the surrounding desert landscape of the Nevada Test Site. Associated with the nuclear research and atmospheric testing programs carried out during the 1950s and 1960s, the tower was a vital component in a series of experiments aimed at characterizing radiation fields from nuclear detonations. Research programs conducted at the tower provided the data for the baseline dosimetry studies crucial to determining the radiation dose rates received by the atomic bomb survivors of Hiroshima and Nagasaki, Japan. Today, BREN Tower stands as a monument to early dosimetry research and one of the legacies of the Cold War.

  6. Beyond the ivory tower : in search of a new form for campus-community relationships

    E-Print Network [OSTI]

    Bowman, Anne (Anne Renee)

    2011-01-01T23:59:59.000Z

    The terms "ivory tower" and "town-gown" have long been used to characterize the relationship between institutions of higher education and the communities in which they reside. While these adversarial phrases reflect the ...

  7. Cooling Water Systems - Energy Savings/Lower Costs By Reusing Cooling Tower Blowdown

    E-Print Network [OSTI]

    Puckorius, P. R.

    1981-01-01T23:59:59.000Z

    Reuse of cooling tower blow down cannot only provide energy conservation, but can provide water conservation and chemical conservation. To be effective, it is critical that the water treatment program be coordinated with the treatment of the blow...

  8. Exquisite corpse: a tower for the public in the era of exhausted modernity

    E-Print Network [OSTI]

    Jang, Sungwoo

    2012-01-01T23:59:59.000Z

    Towers in Manhattan, especially in business areas, have historically used a single overarching system in order to visualize images of their corporate identity and immerse the public in the image of development. While using ...

  9. Microsoft Word - CX-Driscoll-Naselle-TowerMove-FY13_WEB.doc

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

    3 REPLY TO ATTN OF: KEPR-4 SUBJECT: Environmental Clearance Memorandum Stacie Hensley Project Manager - TEP-TPP-4 Proposed Action: Driscoll-Naselle No. 1 Tower Relocation Project...

  10. Howard County- Wind Ordinance

    Broader source: Energy.gov [DOE]

    This ordinance sets up provisions for allowing small wind energy systems in various zoning districts.

  11. Thermodynamic modeling and optimization of a screw compressor chiller and cooling tower system

    E-Print Network [OSTI]

    Graves, Rhett David

    2004-09-30T23:59:59.000Z

    THERMODYNAMIC MODELING AND OPTIMIZATION OF A SCREW COMPRESSOR CHILLER AND COOLING TOWER SYSTEM A Thesis by RHETT DAVID GRAVES 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 2003 Major Subject: Mechanical Engineering THERMODYNAMIC MODELING AND OPTIMIZATION OF A SCREW COMPRESSOR CHILLER AND COOLING TOWER SYSTEM A Thesis by RHETT DAVID GRAVES Submitted to Texas A&M University in partial...

  12. Explosive Demolition of a Fire-Water Tower At East Tennessee Technology Park, Oak Ridge TN

    SciTech Connect (OSTI)

    Brooksbank, R.D.; Rood, M.S.; Amrit, S.K.; Harper, M.S.; Dypolt, D.J.; Brehse, Mike [Bechtel Jacobs Company LLC, P.O. Box 4699 Oak Ridge, TN 37931 (United States)

    2008-01-15T23:59:59.000Z

    On June 17, 2006, the Department of Energy (DOE) successfully demolished a {approx}60 year old fire-water tower (K-1206-E), located at the East Tennessee Technology Park (ETTP) in Oak Ridge, TN, using strategically placed explosive charges. The subject demolition project was executed by MCM Management Corporation and Demolition Dynamics under the management of DoE's prime contractor Bechtel Jacobs Company LLC (BJC). The K-1206-E Fire Water Tower (Tower) supported the ETTP fire water protection system from the mid- 1950's until 1991. The 378,500-L (100,000-gallon) Tower, elevated 53-m (175-feet) above grade, was located in a grassy area within 152-m (500-feet) of several other occupied facilities. Electrical, control circuits and supply water servicing the Tower were deactivated in 2003. Free liquids and sludge were removed from the tank prior to demolition. Demolition of a facility employing explosive demolition at a federal site in the 'post-9/11 era' was a substantial challenge. The subject paper discusses: - the planning and coordination steps that were taken to successfully overcome the challenges prior to the demolition of the empty, deactivated Tower; - the method used for the engineered demolition of the Tower; and - the factors responsible for the successful execution of this demolition project. At least two previous attempts were made to demolish the Tower. In the first attempt, the execution of the project was deferred by the re-allocation of funds. In the subsequent attempt in 2004, the execution of this project was postponed due to concerns that an adjacent facility would have to shut down operations during the duration of mobilization and execution of the project and thereby incur potential financial losses. A total of 51 cubic meters (1,800 cubic feet) of demolition debris was generated, which was compliantly disposed of at a local landfill followed by site restoration.

  13. Wind energy offers considerable promise; the wind itself is free,

    E-Print Network [OSTI]

    Langendoen, Koen

    Wind energy offers considerable promise; the wind itself is free, wind power is clean. One of these sources, wind energy, offers considerable promise; the wind itself is free, wind power is clean, and it is virtually inexhaustible. In recent years, research on wind energy has accelerated

  14. Estimation of Wind Speed in Connection to a Wind Turbine

    E-Print Network [OSTI]

    Estimation of Wind Speed in Connection to a Wind Turbine X. Ma #3; , N. K. Poulsen #3; , H. Bindner y December 20, 1995 Abstract The wind speed varies over the rotor plane of wind turbine making the wind speed on the rotor plane will be estimated by using a wind turbine as a wind measuring device

  15. Comparing Pulsed Doppler LIDAR with SODAR and Direct Measurements for Wind Assessment

    SciTech Connect (OSTI)

    Kelley, N. D.; Jonkman, B. J.; Scott, G. N.; Pichugina, Y. L.

    2007-07-01T23:59:59.000Z

    There is a pressing need for good wind-speed measurements at greater and greater heights to assess the availability of the resource in terms of power production and to identify any frequently occurring atmospheric structural characteristics that may create turbulence that impacts the operational reliability and lifetime of wind turbines and their components. In this paper, we summarize the results of a short study that compares the relative accuracies of wind speeds derived from a high-resolution pulsed Doppler LIDAR operated by the National Oceanic and Atmospheric Administration (NOAA) and a midrange Doppler SODAR with wind speeds measured by four levels of tower-based sonic anemometry up to a height of 116 m.

  16. Updated Eastern Interconnect Wind Power Output and Forecasts for ERGIS: July 2012

    SciTech Connect (OSTI)

    Pennock, K.

    2012-10-01T23:59:59.000Z

    AWS Truepower, LLC (AWST) was retained by the National Renewable Energy Laboratory (NREL) to update wind resource, plant output, and wind power forecasts originally produced by the Eastern Wind Integration and Transmission Study (EWITS). The new data set was to incorporate AWST's updated 200-m wind speed map, additional tall towers that were not included in the original study, and new turbine power curves. Additionally, a primary objective of this new study was to employ new data synthesis techniques developed for the PJM Renewable Integration Study (PRIS) to eliminate diurnal discontinuities resulting from the assimilation of observations into mesoscale model runs. The updated data set covers the same geographic area, 10-minute time resolution, and 2004?2006 study period for the same onshore and offshore (Great Lakes and Atlantic coast) sites as the original EWITS data set.

  17. Experimental study on the performance of a regeneration tower for various climatic conditions

    SciTech Connect (OSTI)

    Ertas, A.; Kiris, I.; Anderson, E.E. (Texas Tech Univ., Lubbock, TX (United States)); Gandhidasan, P. (King Fahd Univ. of Petroleum Minerals, Dhahran (Saudi Arabia))

    1994-07-01T23:59:59.000Z

    In recent years attempts have been made to use packed towers for regenerating weak liquid desiccants in desiccant cooling or drying processes. For regeneration of desiccants, a counter-flow packed regeneration tower in conjunction with a humidifier has been designed and constructed. The tower was packed with plastic Intalox Snowflake packing material. Experimental measurements of the regeneration tower performance utilizing a new cost effective liquid desiccant mixture CELD (comprised of 50% of lithium chloride and 50% calcium chloride by weight) have been carried out. The average summer climatic conditions for Oklahoma (dry-bulb temperature of 32.22[degrees]C and relative humidity of 60%), Texas (dry-bulb temperature of 32.22[degrees]C and relative humidity of 70%), and Florida (dry-bulb temperature of 32.22[degrees]C and relative humidity of 80%) were simulated with air inlet condition to the tower. The effect of desiccant inlet temperature, inlet concentration, and flow rate on the regeneration tower performance has been investigated.

  18. Wind Power Outlook 2004

    SciTech Connect (OSTI)

    anon.

    2004-01-01T23:59:59.000Z

    The brochure, expected to be updated annually, provides the American Wind Energy Association's (AWAE's) up-to-date assessment of the wind industry. It provides a summary of the state of wind power in the U.S., including the challenges and opportunities facing the industry. It provides summary information on the growth of the industry, policy-related factors such as the federal wind energy production tax credit status, comparisons with natural gas, and public views on wind energy.

  19. Dynamic Resource Allocation with the arcControlTower

    E-Print Network [OSTI]

    Filipcic, Andrej; The ATLAS collaboration; Nilsen, Jon Kerr

    2015-01-01T23:59:59.000Z

    Distributed computing resources available for high-energy physics research are becoming less dedicated to one type of workflow and researchers’ workloads are increasingly exploiting modern computing technologies such as parallelism. The current pilot job management model used by many experiments relies on static dedicated resources and cannot easily adapt to these changes. The model used for ATLAS in Nordic countries and some other places enables a flexible job management system based on dynamic resources allocation. Rather than a fixed set of resources managed centrally, the model allows resources to be requested on the fly. The ARC Computing Element (ARC-CE) and ARC Control Tower (aCT) are the key components of the model. The aCT requests jobs from the ATLAS job management system (PanDA) and submits a fully-formed job description to ARC-CEs. ARC-CE can then dynamically request the required resources from the underlying batch system. In this paper we describe the architecture of the model and the experienc...

  20. CHEP2015: Dynamic Resource Allocation with arcControlTower

    E-Print Network [OSTI]

    Filipcic, Andrej; The ATLAS collaboration; Nilsen, Jon Kerr

    2015-01-01T23:59:59.000Z

    Distributed computing resources available for high-energy physics research are becoming less dedicated to one type of workflow and researchers’ workloads are increasingly exploiting modern computing technologies such as parallelism. The current pilot job management model used by many experiments relies on static dedicated resources and cannot easily adapt to these changes. The model used for ATLAS in Nordic countries and some other places enables a flexible job management system based on dynamic resources allocation. Rather than a fixed set of resources managed centrally, the model allows resources to be requested on the fly. The ARC Computing Element (ARC-CE) and ARC Control Tower (aCT) are the key components of the model. The aCT requests jobs from the ATLAS job mangement system (Panda) and submits a fully-formed job description to ARC-CEs. ARC-CE can then dynamically request the required resources from the underlying batch system. In this paper we describe the architecture of the model and the experience...

  1. Collegiate Wind Competition Engages Tomorrow's Wind Energy Innovators...

    Office of Environmental Management (EM)

    Engages Tomorrow's Wind Energy Innovators Collegiate Wind Competition Engages Tomorrow's Wind Energy Innovators January 6, 2014 - 10:00am Addthis 2014 Collegiate Teams Boise State...

  2. 20% Wind Energy by 2030: Increasing Wind Energy's Contribution...

    Energy Savers [EERE]

    : Increasing Wind Energy's Contribution to U.S. Electricity Supply (Executive Summary) 20% Wind Energy by 2030: Increasing Wind Energy's Contribution to U.S. Electricity Supply...

  3. National Wind Technology Center (Fact Sheet), National Wind Technology...

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

    NATIONAL WIND TECHNOLOGY CENTER www.nrel.govwind Wind energy is one of the fastest growing electricity generation sources in the world. NREL's National Wind Technology Center...

  4. Sinomatech Wind Power Blade aka Sinoma Science Technology Wind...

    Open Energy Info (EERE)

    Sinomatech Wind Power Blade aka Sinoma Science Technology Wind Turbine Blade Co Ltd Jump to: navigation, search Name: Sinomatech Wind Power Blade (aka Sinoma Science & Technology...

  5. 20% Wind Energy by 2030: Increasing Wind Energy's Contribution...

    Office of Environmental Management (EM)

    a new vision for wind energy through 2050. Taking into account all facets of wind energy (land-based, offshore, distributed), the new Wind Vision Report defines the...

  6. Final Project Report, Bristol Bay Native Corporation Wind and Hydroelectric Feasibility Study

    SciTech Connect (OSTI)

    Vaught, Douglas J.

    2007-03-31T23:59:59.000Z

    The Bristol Bay Native Corporation (BBNC) grant project focused on conducting nine wind resource studies in eight communities in the Bristol Bay region of southwest Alaska and was administered as a collaborative effort between BBNC, the Alaska Energy Authority, Alaska Village Electric Cooperative, Nushagak Electric Cooperative (NEC), Naknek Electric Association (NEA), and several individual village utilities in the region. BBNC’s technical contact and the project manager for this study was Douglas Vaught, P.E., of V3 Energy, LLC, in Eagle River, Alaska. The Bristol Bay region of Alaska is comprised of 29 communities ranging in size from the hub community of Dillingham with a population of approximately 3,000 people, to a few Native Alaska villages that have a few tens of residents. Communities chosen for inclusion in this project were Dillingham, Naknek, Togiak, New Stuyahok, Kokhanok, Perryville, Clark’s Point, and Koliganek. Selection criteria for conduction of wind resource assessments in these communities included population and commercial activity, utility interest, predicted Class 3 or better wind resource, absence of other sources of renewable energy, and geographical coverage of the region. Beginning with the first meteorological tower installation in October 2003, wind resource studies were completed at all sites with at least one year, and as much as two and a half years, of data. In general, the study results are very promising for wind power development in the region with Class 6 winds measured in Kokhanok; Class 4 winds in New Stuyahok, Clark’s Point, and Koliganek; Class 3 winds in Dillingham, Naknek, and Togiak; and Class 2 winds in Perryville. Measured annual average wind speeds and wind power densities at the 30 meter level varied from a high of 7.87 meters per second and 702 watts per square meter in Kokhanok (Class 6 winds), to a low of 4.60 meters per second and 185 watts per square meter in Perryville (Class 2 winds).

  7. Sandia Energy - Sandia Wind Turbine Loads Database

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

    Sandia Wind Turbine Loads Database Home Stationary Power Energy Conversion Efficiency Wind Energy Resources Wind Software Downloads Sandia Wind Turbine Loads Database Sandia Wind...

  8. Sandia National Laboratories: Wind Power

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

    Wind Energy Staff On March 24, 2011, in Wind Energy On November 10, 2010, in Wind Plant Opt. Rotor Innovation Materials, Reliability & Standards Siting & Barrier Mitigation...

  9. 2009 Wind Technologies Market Report

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01T23:59:59.000Z

    the Impact of Significant Wind Generation Facilities on BulkOperations Impacts of Wind Generation Integration Study.Impacts of Integrating Wind Generation into Idaho Power's

  10. 2011 Wind Technologies Market Report

    E-Print Network [OSTI]

    Bolinger, Mark

    2013-01-01T23:59:59.000Z

    Operations Impacts of Wind Generation Integration Study.Impacts of Integrating Wind Generation into Idaho Power's2008. Analysis of Wind Generation Impact on ERCOT Ancillary

  11. 2008 WIND TECHNOLOGIES MARKET REPORT

    E-Print Network [OSTI]

    Bolinger, Mark

    2010-01-01T23:59:59.000Z

    the Impact of Significant Wind Generation Facilities on BulkOperations Impacts of Wind Generation Integration Study.Impacts of Integrating Wind Generation into Idaho Power's

  12. 2010 Wind Technologies Market Report

    E-Print Network [OSTI]

    Wiser, Ryan

    2012-01-01T23:59:59.000Z

    Operations Impacts of Wind Generation Integration Study.Impacts of Integrating Wind Generation into Idaho Power'sthe Impact of Significant Wind Generation Facilities on Bulk

  13. WIND DATA REPORT Presque Isle

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Presque Isle June 1, 2005 ­ August 31, 2005 Prepared for United States Department...................................................................................................................... 9 Wind Speed Time Series............................................................................................................. 9 Wind Speed Distributions

  14. WIND DATA REPORT Presque Isle

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Presque Isle December 1, 2004 ­ February 28, 2005 Prepared for United States.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distributions

  15. WIND DATA REPORT Presque Isle

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Presque Isle December 1, 2004 ­ December 1, 2005 Prepared for United States ......................................................................................................... 9 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distributions

  16. WIND DATA REPORT Thompson Island

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Thompson Island June 1, 2003 ­ August 31, 2003 Prepared for Massachusetts...................................................................................................................... 9 Wind Speed Time Series............................................................................................................. 9 Wind Speed Distribution

  17. 2009 Wind Technologies Market Report

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01T23:59:59.000Z

    Prepared for the Utility Wind Integration Group. Arlington,Consult. 2010. International Wind Energy Development: WorldUBS Global I/O: Global Wind Sector. UBS Investment Research.

  18. WIND DATA REPORT Thompson Island

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Thompson Island December 1, 2003 ­ February 29, 2004 Prepared for Massachusetts.................................................................................................................... 11 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distribution

  19. WIND DATA REPORT Presque Isle

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Presque Isle March 1, 2005 ­ May 31, 2005 Prepared for United States Department.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distributions

  20. WIND DATA REPORT Thompson Island

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Thompson Island March 1, 2003 ­ May 31, 2003 Prepared for Massachusetts Technology...................................................................................................................... 9 Wind Speed Time Series............................................................................................................. 9 Wind Speed Distributions

  1. WIND DATA REPORT FALMOUTH, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT FALMOUTH, MA June1, 2004 to August 31, 2004. Prepared for Massachusetts Technology...................................................................................................................... 8 Wind Speed Time Series............................................................................................................. 8 Wind Speed Distributions

  2. WIND DATA REPORT Thompson Island

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Thompson Island September 1, 2003 ­ November 30, 2003 Prepared for Massachusetts...................................................................................................................... 9 Wind Speed Time Series............................................................................................................. 9 Wind Speed Distribution

  3. WIND DATA REPORT Thompson Island

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Thompson Island March 1, 2004 ­ May 31, 2004 Prepared for Massachusetts Technology...................................................................................................................... 9 Wind Speed Time Series............................................................................................................. 9 Wind Speed Distribution

  4. 2008 WIND TECHNOLOGIES MARKET REPORT

    E-Print Network [OSTI]

    Bolinger, Mark

    2010-01-01T23:59:59.000Z

    2008. Washington, DC: American Wind Energy Association.American Wind Energy Association ( AWEA).2009b. AWEA Small Wind Turbine Global Market Study: Year

  5. WIND DATA REPORT Thompson Island

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Thompson Island June 1, 2004 ­ August 31, 2004 Prepared for Massachusetts...................................................................................................................... 9 Wind Speed Time Series............................................................................................................. 9 Wind Speed Distribution

  6. 2008 WIND TECHNOLOGIES MARKET REPORT

    E-Print Network [OSTI]

    Bolinger, Mark

    2010-01-01T23:59:59.000Z

    Table 8 Figure 30. Wind Integration Costs at Various LevelsOperations and Maintenance Costs Wind project operations andPublic Service Wind Integration Cost Impact Study. Prepared

  7. 2012 Wind Technologies Market Report

    E-Print Network [OSTI]

    Wiser, Ryan

    2014-01-01T23:59:59.000Z

    with the section on offshore wind; Donna Heimiller and Billyof 2012, global cumulative offshore wind capacity stood ats (DOE’s) investments in offshore wind energy research and

  8. 2011 Wind Technologies Market Report

    E-Print Network [OSTI]

    Bolinger, Mark

    2013-01-01T23:59:59.000Z

    charging wind power projects for balancing services. 81 BPA,in balancing reserves with increased wind power penetrationin balancing reserves with increased wind power penetration

  9. 2010 Wind Technologies Market Report

    E-Print Network [OSTI]

    Wiser, Ryan

    2012-01-01T23:59:59.000Z

    charging wind power projects for balancing services. 88 BPA,in balancing reserves with increased wind power penetrationin balancing reserves with increased wind power penetration

  10. 2012 Wind Technologies Market Report

    E-Print Network [OSTI]

    Wiser, Ryan

    2014-01-01T23:59:59.000Z

    Xcel Energy. 2011. Wind Induced Coal Plant Cyclingand the Implications of Wind Curtailment for Public Serviceof Colorado 2 GW and 3 GW Wind Integration Cost Study.

  11. Wind Farms in North America

    E-Print Network [OSTI]

    Hoen, Ben

    2014-01-01T23:59:59.000Z

    Opinion About Large Offshore Wind Power: Underlying Factors.Delaware Opinion on Offshore Wind Power - Interim Report.Newark, DE. 16 pages. Global Wind Energy Council (GWEC) (

  12. 2010 Wind Technologies Market Report

    E-Print Network [OSTI]

    Wiser, Ryan

    2012-01-01T23:59:59.000Z

    2011. In March 2011, NRG Bluewater Wind?s Delaware projectPurchaser Delmarva NRG Bluewater Wind (Delaware) Universitythe project, while NRG Bluewater would retain the remaining

  13. 2011 Wind Technologies Market Report

    E-Print Network [OSTI]

    Bolinger, Mark

    2013-01-01T23:59:59.000Z

    natural gas prices), pushed wind energy to the top of (andperformance, and price of wind energy, policy uncertainty –cost, performance, and price of wind energy, some of these

  14. WIND DATA REPORT Thompson Island

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Thompson Island December 1, 2004 ­ February 28, 2005 Prepared for Massachusetts.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distribution

  15. WIND DATA REPORT DARTMOUTH, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT DARTMOUTH, MA March 26th 2005 to May 31st 2005. Prepared for Massachusetts...................................................................................................................... 9 Wind Speed Time Series............................................................................................................. 9 Wind Speed Distributions

  16. WIND DATA REPORT FALMOUTH, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT FALMOUTH, MA June 1st 2004- May 31st 2005 Prepared for Massachusetts Technology.................................................................................................................... 10 Wind Speed Distributions......................................................................................................... 11 Monthly Average Wind Speeds

  17. WIND DATA REPORT Kingston, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Kingston, MA March 1, 2006 - May 31, 2006 Prepared for Massachusetts Technology.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distributions.......

  18. WIND DATA REPORT Nantucket, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Nantucket, MA September 1st 2005 to November 30th 2005. Prepared for Massachusetts.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distributions

  19. WIND DATA REPORT Wellfleet, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Wellfleet, MA December 1st , 2006 ­ February 28th , 2007 Prepared...................................................................................................................... 8 Wind Speed Time Series............................................................................................................. 9 Wind Speed Distributions

  20. WIND DATA REPORT Nantucket, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Nantucket, MA June 1st 2006 to August 31th 2006 Prepared for Massachusetts.................................................................................................................... 11 Wind Speed Time Series........................................................................................................... 11 Wind Speed D

  1. WIND DATA REPORT Truro, Massachusetts

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Truro, Massachusetts March 24th to May 31st , 2006 Prepared for Massachusetts.................................................................................................................... 11 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distributions

  2. WIND DATA REPORT Chester, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Chester, MA December 2006 ­ February 2007 Prepared for Massachusetts Technology...................................................................................................................... 9 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distributions

  3. WIND DATA REPORT Brewster, Massachusetts

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Brewster, Massachusetts December 1, 2005 - February 28, 2006 Prepared.................................................................................................................... 11 Wind Speed Time Series........................................................................................................... 12 Wind Speed Di

  4. WIND DATA REPORT Truro, Massachusetts

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Truro, Massachusetts December, 2006 1st to February 28th , 2007 Prepared...................................................................................................................... 9 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distributions

  5. WIND DATA REPORT Brewster, Massachusetts

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Brewster, Massachusetts June 1, 2006 - August 31, 2006 Prepared for Massachusetts.................................................................................................................... 11 Wind Speed Time Series........................................................................................................... 11 Wind Speed Di

  6. WIND DATA REPORT Chester, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Chester, MA March 2007 ­ May 2007 Prepared for Massachusetts Technology...................................................................................................................... 8 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distributions

  7. WIND DATA REPORT Chester, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Chester, MA September ­ November 2006 Prepared for Massachusetts Technology.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distributions

  8. WIND DATA REPORT DARTMOUTH, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT DARTMOUTH, MA September 1st 2005 to November 30th 2005. Prepared for Massachusetts.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distributions

  9. WIND DATA REPORT Kingston, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Kingston, MA December 1, 2005 - February 28, 2006 Prepared for Massachusetts.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distribution

  10. WIND DATA REPORT Brewster, Massachusetts

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Brewster, Massachusetts September 1, 2006 - November 30, 2006 Prepared.................................................................................................................... 11 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distributions..................

  11. WIND DATA REPORT Nantucket, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Nantucket, MA December 1st 2005 to February 28th 2006 Prepared for Massachusetts.................................................................................................................... 11 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distributions

  12. WIND DATA REPORT Gardner NCCI

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Gardner NCCI March 1, 2007 ­ May 31, 2007 Prepared for Massachusetts Technology...................................................................................................................... 8 Wind Speed Time Series............................................................................................................. 9 Wind Speed Distributions

  13. WIND DATA REPORT FALMOUTH, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT FALMOUTH, MA Sep 1st 2004 to Nov 30th 2004. Prepared for Massachusetts Technology...................................................................................................................... 9 Wind Speed Time Series............................................................................................................. 9 Wind Speed Distributions

  14. WIND DATA REPORT Chester, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Chester, MA June ­ August 2006 Prepared for Massachusetts Technology Collaborative.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distributions

  15. WIND DATA REPORT September 2005

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Lynn, MA September 2005 Prepared for Massachusetts Technology Collaborative 75.................................................................................................................... 11 Wind Speed Time Series........................................................................................................... 11 Monthly Average Wind Speeds

  16. WIND DATA REPORT Nantucket, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Nantucket, MA June 1st 2005 to August 31st 2005. Prepared for Massachusetts.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distributions

  17. WIND DATA REPORT Truro, Massachusetts

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Truro, Massachusetts September 1st to November 30th , 2006 Prepared.................................................................................................................... 11 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distributions

  18. WIND DATA REPORT Truro, Massachusetts

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Truro, Massachusetts June 1st to August 31st , 2006 Prepared for Massachusetts.................................................................................................................... 11 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distributions

  19. WIND DATA REPORT DARTMOUTH, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT DARTMOUTH, MA June 1st 2005 to August 31st 2005. Prepared for Massachusetts.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distributions

  20. WIND DATA REPORT Brewster, Massachusetts

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Brewster, Massachusetts March 1, 2006 - May 31, 2006 Prepared for Massachusetts.................................................................................................................... 11 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distributi

  1. WIND DATA REPORT Thompson Island

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Thompson Island September 1, 2004 ­ November 30, 2004 Prepared for Massachusetts.................................................................................................................... 11 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distribution.............

  2. WIND DATA REPORT DARTMOUTH, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT DARTMOUTH, MA December 1st 2005 to February 28th 2006. Prepared for Massachusetts.................................................................................................................... 11 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distributions

  3. WIND DATA REPORT Dartmouth, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Dartmouth, MA March 1st 2006 to May 31th 2006 Prepared for Massachusetts.................................................................................................................... 11 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distributions

  4. WIND DATA REPORT Wellfleet, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Wellfleet, MA March 1st , 2007 ­ May 31st , 2007 Prepared for Massachusetts...................................................................................................................... 8 Wind Speed Time Series............................................................................................................. 9 Wind Speed Distributions

  5. WIND DATA REPORT Gardner NCCI

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Gardner NCCI September 1, 2007 ­ November 30, 2007 Prepared for Massachusetts...................................................................................................................... 8 Wind Speed Time Series............................................................................................................. 9 Wind Speed Distributions

  6. WIND DATA REPORT Thompson Island

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Thompson Island March 1, 2005 ­ May 31, 2005 Prepared for Massachusetts Technology.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 10 Wind Speed Distribution

  7. WIND DATA REPORT Chester, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Chester, MA April 14 ­ May 31, 2006 Prepared for Massachusetts Technology.................................................................................................................... 10 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distributions

  8. WIND DATA REPORT FALMOUTH, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT FALMOUTH, MA Dec 1st 2004 to Feb 28th 2005. Prepared for Massachusetts Technology ...................................................................................................................... 9 Wind Speed Time Series............................................................................................................. 9 Wind Speed Distributions

  9. WIND DATA REPORT FALMOUTH, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT FALMOUTH, MA March 1st 2005 to May 31st 2005. Prepared for Massachusetts...................................................................................................................... 9 Wind Speed Time Series............................................................................................................. 9 Wind Speed Distributions

  10. WIND DATA REPORT Dartmouth, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Dartmouth, MA June 1st 2006 to July 31th 2006 Prepared for Massachusetts.................................................................................................................... 11 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distributions

  11. WIND DATA REPORT Gardner NCCI

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Gardner NCCI June 1, 2007 ­ August 31, 2007 Prepared for Massachusetts Technology...................................................................................................................... 8 Wind Speed Time Series............................................................................................................. 9 Wind Speed Distributions

  12. 2011 Wind Technologies Market Report

    E-Print Network [OSTI]

    Bolinger, Mark

    2013-01-01T23:59:59.000Z

    studies show that wind energy integration costs are below $do not represent wind energy generation costs. This sectioncomponent of the overall cost of wind energy, but can vary

  13. 2008 WIND TECHNOLOGIES MARKET REPORT

    E-Print Network [OSTI]

    Bolinger, Mark

    2010-01-01T23:59:59.000Z

    do not represent wind energy generation costs. Based on thisproduction-cost reduction value of wind energy, without anwith wind energy. Generally, these costs are associated with

  14. 2011 Wind Technologies Market Report

    E-Print Network [OSTI]

    Bolinger, Mark

    2013-01-01T23:59:59.000Z

    performance, and price of wind energy, policy uncertainty –The wind energy integration, transmission, and policyand absent supportive policies for wind energy. That said,

  15. 2010 Wind Technologies Market Report

    E-Print Network [OSTI]

    Wiser, Ryan

    2012-01-01T23:59:59.000Z

    The wind energy integration, transmission, and policy2012, however, federal policy towards wind energy remainsin federal policy towards wind energy after 2012 places such

  16. 2009 Wind Technologies Market Report

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01T23:59:59.000Z

    The wind energy integration, transmission, and policyPTC. Moreover, federal policy towards wind energy remainsand policy announcements demonstrate accelerated activity in the offshore wind energy

  17. WIND DATA REPORT Nantucket, MA

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    WIND DATA REPORT Nantucket, MA March 1st 2006 to May 31th 2006 Prepared for Massachusetts.................................................................................................................... 11 Wind Speed Time Series........................................................................................................... 11 Wind Speed Distribut

  18. 2010 Wind Technologies Market Report

    E-Print Network [OSTI]

    Wiser, Ryan

    2012-01-01T23:59:59.000Z

    Market Report vii potential wind energy generation withinthat nearly 8% of potential wind energy generation withinAreas, in GWh (and % of potential wind generation) Electric

  19. 2009 Wind Technologies Market Report

    E-Print Network [OSTI]

    Wiser, Ryan

    2010-01-01T23:59:59.000Z

    capacity), with 17% of all potential wind energy generationthat roughly 17% of potential wind energy generation withinexample, roughly 1% of potential wind energy output in 2009

  20. Technical Evaluation of Side Stream Filtration for Cooling Towers

    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'tOriginEducationVideoStrategic| Department ofGeneralWind »Assistance:Technical