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


1

Wind Turbine Manufacturing Process Monitoring  

SciTech Connect

To develop a practical inline inspection that could be used in combination with automated composite material placement equipment to economically manufacture high performance and reliable carbon composite wind turbine blade spar caps. The approach technical feasibility and cost benefit will be assessed to provide a solid basis for further development and implementation in the wind turbine industry. The program is focused on the following technology development: (1) Develop in-line monitoring methods, using optical metrology and ultrasound inspection, and perform a demonstration in the lab. This includes development of the approach and performing appropriate demonstration in the lab; (2) Develop methods to predict composite strength reduction due to defects; and (3) Develop process models to predict defects from leading indicators found in the uncured composites.

Waseem Faidi; Chris Nafis; Shatil Sinha; Chandra Yerramalli; Anthony Waas; Suresh Advani; John Gangloff; Pavel Simacek

2012-04-26T23:59:59.000Z

2

Indian Wind Turbine Manufacturers Association | Open Energy Informatio...  

Open Energy Info (EERE)

Manufacturers Association Jump to: navigation, search Name: Indian Wind Turbine Manufacturers Association Place: Chennai, India Zip: 600 041 Sector: Wind energy Product:...

3

Iskra Wind Turbine Manufacturers Ltd | Open Energy Information  

Open Energy Info (EERE)

Iskra Wind Turbine Manufacturers Ltd Iskra Wind Turbine Manufacturers Ltd Jump to: navigation, search Name Iskra Wind Turbine Manufacturers Ltd Place Nottingham, United Kingdom Sector Wind energy Product Iskra manufactures and markets the AT5-1 home-sized wind turbine rated at 5.3 kW, suitable for low wind speeds. References Iskra Wind Turbine Manufacturers Ltd[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Iskra Wind Turbine Manufacturers Ltd is a company located in Nottingham, United Kingdom . References ↑ "Iskra Wind Turbine Manufacturers Ltd" Retrieved from "http://en.openei.org/w/index.php?title=Iskra_Wind_Turbine_Manufacturers_Ltd&oldid=347129" Categories: Clean Energy Organizations

4

Wind Turbine Manufacturers in the U. S.: Locations and Local...  

Wind Powering America (EERE)

Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Wind Turbine Manufacturers in the U.S.: Locations and Local Impacts WINDPOWER 2010 Conference...

5

Property:WindTurbineManufacturer | Open Energy Information  

Open Energy Info (EERE)

WindTurbineManufacturer WindTurbineManufacturer Jump to: navigation, search This is a property of type Page. Pages using the property "WindTurbineManufacturer" Showing 25 pages using this property. (previous 25) (next 25) 3 3-D Metals + Northern Power Systems + A AB Tehachapi Wind Farm + Vestas + AFCEE MMR Turbines + GE Energy + AG Land 1 + GE Energy + AG Land 2 + GE Energy + AG Land 3 + GE Energy + AG Land 4 + GE Energy + AG Land 5 + GE Energy + AG Land 6 + GE Energy + AVTEC + Northern Power Systems + Adair Wind Farm I + Vestas + Adair Wind Farm II + Siemens + Adams Wind Project + Alstom + Aeroman Repower Wind Farm + GE Energy + Affinity Wind Farm + Suzlon Energy Company + Agassiz Beach Wind Farm + Vestas + Agriwind Wind Farm + Suzlon Energy Company + Ainsworth Wind Energy Facility + Vestas +

6

Beijing Goldwind Kechuang Wind Turbine Manufacturer | Open Energy  

Open Energy Info (EERE)

Goldwind Kechuang Wind Turbine Manufacturer Goldwind Kechuang Wind Turbine Manufacturer Jump to: navigation, search Name Beijing Goldwind Kechuang Wind Turbine Manufacturer Place Beijing, Beijing Municipality, China Zip 100000 Sector Wind energy Product A manufacturer set up by Goldwind in Beijing for producing wind turbines. Coordinates 39.90601°, 116.387909° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.90601,"lon":116.387909,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

7

Tax Credit for Manufacturers of Small Wind Turbines | Department of Energy  

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

Tax Credit for Manufacturers of Small Wind Turbines Tax Credit for Manufacturers of Small Wind Turbines Tax Credit for Manufacturers of Small Wind Turbines < Back Eligibility Industrial Savings Category Wind Buying & Making Electricity Program Info Start Date 01/01/03 State Oklahoma Program Type Industry Recruitment/Support Rebate Amount Based on square footage of rotor swept area: 25.00/ft^2 for 2005 through 2012 Provider Oklahoma Tax Commission '''''Note: After a 2 year moratorium on all state tax credits, this credit may be claimed for tax year 2012 and subsequent tax years, for small wind turbines manufactured on or after July 1, 2012.''''' Oklahoma offers an income tax credit to the manufacturers of small wind turbines for tax years 2003 through 2012. Oklahoma manufacturers of wind turbines with a rated capacity of between 1 kilowatt (kW) and 50 kW are

8

Memorandum of Understanding between the U.S. Wind Turbine Manufacturers and  

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

Memorandum of Understanding between the U.S. Wind Turbine Memorandum of Understanding between the U.S. Wind Turbine Manufacturers and the U.S. Department of Energy on Developing a Shared Strategy to Achieve 20% Wind Energy in 2030 Memorandum of Understanding between the U.S. Wind Turbine Manufacturers and the U.S. Department of Energy on Developing a Shared Strategy to Achieve 20% Wind Energy in 2030 this Memorandum of Understanding (MOU), the U.S. Department of Energy (DOE) and the signing members of the wind turbine industry (the Parties) agree to work cooperatively to define and develop the framework for appropriate technology R&D and siting strategies for realizing 20% Wind Energy by 2030. Memorandum of Understanding between the U.S. Wind Turbine Manufacturers and the U.S. Department of Energy on Developing a Shared Strategy to Achieve

9

Howden Wind Turbines Ltd | Open Energy Information  

Open Energy Info (EERE)

Howden Wind Turbines Ltd Jump to: navigation, search Name: Howden Wind Turbines Ltd Place: United Kingdom Sector: Wind energy Product: Howden was a manufacturer of wind turbines in...

10

Nantong Casc Wanyuan Acciona Wind Turbine Manufacture Co Ltd NCWA | Open  

Open Energy Info (EERE)

Casc Wanyuan Acciona Wind Turbine Manufacture Co Ltd NCWA Casc Wanyuan Acciona Wind Turbine Manufacture Co Ltd NCWA Jump to: navigation, search Name Nantong Casc Wanyuan Acciona Wind Turbine Manufacture Co Ltd (NCWA) Place Nantong, Jiangxi Province, China Zip 226017 Sector Wind energy Product Nantong-based wind turbine manufacturer. Coordinates 32.087399°, 121.062218° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":32.087399,"lon":121.062218,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

11

NREL: Wind Research - Small Wind Turbine Development  

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

Small Wind Turbine Development Small Wind Turbine Development A photo of Southwest Windpower's Skystream wind turbine in front of a home. PIX14936 Southwest Windpower's Skystream wind turbine. A photo of the Endurance wind turbine. PIX15006 The Endurance wind turbine. A photo of the Atlantic Orient Corporation 15/50 wind turbine at the National Wind Technology Center. PIX07301 The Atlantic Orient Corporation 15/50 wind turbine at the National Wind Technology Center. NREL supports continued market expansion of small wind turbines by funding manufacturers through competitive solicitations (i.e., subcontracts and/or grants) to refine prototype systems leading to commercialization. Learn more about the turbine development projects below. Skystream NREL installed and tested an early prototype of this turbine at the

12

Wind turbine | Open Energy Information  

Open Energy Info (EERE)

turbine turbine Jump to: navigation, search Dictionary.png Wind turbine: A machine that converts wind energy to mechanical energy; typically connected to a generator to produce electricity. Other definitions:Wikipedia Reegle Contents 1 Types of Wind Turbines 1.1 Vertical Axis Wind Turbines 1.2 Horizontal Axis Wind Turbines 2 Wind Turbine Sizes 3 Components of a Wind Turbine 4 References Types of Wind Turbines There are two basic wind turbine designs: those with a vertical axis (sometimes referred to as VAWTs) and those with a horizontal axis (sometimes referred to as HAWTs). There are several manufacturers of vertical axis turbines, but they have not penetrated the "utility scale" (100 kW capacity and larger) market to the same degree as horizontal axis turbines.[1]

13

Wind Turbine Manufacturers in the U. S.: Locations and Local Impacts (Presentation)  

Wind Powering America (EERE)

by by the Alliance for Sustainable Energy, LLC. Wind Turbine Manufacturers in the U.S.: Locations and Local Impacts WINDPOWER 2010 Conference and Exhibition Dallas, Texas Suzanne Tegen May 26, 2010 NREL/PR-6A2-47913 Challenges to modeling Renewables Renewables represent new industries * Not isolated as an industry in conventional I/O codes Requires detailed knowledge of project costs and industry specific expenditures * Equipment, Engineering, Labor, Permitting, O&M, etc. The Wind JEDI Model * Provides a project basic project recipe for specific RE technologies * Applies Industry Specific Multipliers derived from IMPLAN National Renewable Energy Laboratory Innovation for Our Energy Future

14

Wind turbine  

SciTech Connect

The improvement in a wind turbine comprises providing a tower with a freely liftable mount and adapting a nacelle which is fitted with a propeller windwheel consisting of a plurality of rotor blades and provided therein with means for conversion of wind energy to be shifted onto said mount attached to the tower. In case of a violent wind storm, the nacelle can be lowered down to the ground to protect the rotor blades from breakage due to the force of the wind. Required maintenance and inspection of the nacelle and replacement of rotor blades can be safely carried out on the ground.

Abe, M.

1982-01-19T23:59:59.000Z

15

Energy 101: Wind Turbines  

ScienceCinema (OSTI)

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.

None

2013-05-29T23:59:59.000Z

16

Energy 101: Wind Turbines  

SciTech Connect

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.

None

2011-01-01T23:59:59.000Z

17

Wind Turbine Manufacturers in the United States: Locations and Local Impacts (Presentation)  

SciTech Connect

Suzanne Tegen's presentation about U.S. wind energy manufacturing (presented at WINDPOWER 2010 in Dallas) provides information about challenges to modeling renewables; wind energy's economic "ripple effect"; case studies about wind-related manufacturing in Colorado, Iowa, Ohio, and Indiana; manufacturing maps for the Great Lakes region, Arkansas, and the United States; sample job announcements; and U.S. Treasury Grant 1603 funding.

Tegen, S.

2010-05-26T23:59:59.000Z

18

Energy Department Announces $2 Million to Support Manufacturing of Taller Wind Turbine Towers  

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

This Morning at the American Energy and Manufacturing Competitiveness Summit, Assistant Secretary for Energy Efficiency and Renewable Energy, Dr. David Danielson, announced $2 million through the Taller Hub Heights funding opportunity, for two organizations that will advance wind energy technologies for harnessing stronger winds available at higher heights, potentially increasing the amount of clean, renewable electricity the nation produces.

19

Vertical axis wind turbine  

SciTech Connect

Wind turbines are largely divided into vertical axis wind turbines and propeller (Horizontal axis) wind turbines. The present invention discloses a vertical axis high speed wind turbine provided with rotational speed control systems. This vertical axis wind turbine is formed by having blades of a proper airfoil fitted to respective supporting arms provided radially from a vertical rotating shaft by keeping the blade span-wise direction in parallel with the shaft and being provided with aerodynamic control elements operating manually or automatically to control the rotational speed of the turbine.

Kato, Y.; Seki, K.; Shimizu, Y.

1981-01-27T23:59:59.000Z

20

Wind Turbine Tribology Seminar  

Energy.gov (U.S. Department of Energy (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...

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


21

Wind Turbine Competition Introduction  

E-Print Network (OSTI)

Wind Turbine Competition Introduction: The Society of Hispanic Professional Engineers, SHPE at UTK, wishes to invite you to participate in our first `Wind Turbine' competition as part of Engineer's Week). You will be evaluated by how much power your wind turbine generates at the medium setting of our fan

Wang, Xiaorui "Ray"

22

Sustainable Energy Solutions Task 4.1 Intelligent Manufacturing of Hybrid Carbon-Glass Fiber-Reinforced Composite Wind Turbine Blades  

SciTech Connect

EXECUTIVE SUMARY In this subtask, the manufacturability of hybrid carbon-glass fiber-reinforced composite wind turbine blades using Vacuum-Assisted Resin Transfer Molding (VARTM) was investigated. The objective of this investigation was to study the VARTM process and its parameters to manufacture cost-effective wind turbine blades with no defects (mainly eliminate dry spots and reduce manufacturing time). A 2.5-dimensional model and a 3-dimensional model were developed to simulate mold filling and part curing under different conditions. These conditions included isothermal and non-isothermal filling, curing of the part during and after filling, and placement of injection gates at different locations. Results from this investigation reveal that the process can be simulated and also that manufacturing parameters can be optimized to eliminate dry spot formation and reduce the manufacturing time. Using computer-based models is a cost-effective way to simulate manufacturing of wind turbine blades. The approach taken herein allows the design of the wind blade manufacturing processes without physically running trial-and-error experiments that are expensive and time-consuming; especially for larger blades needed for more demanding environmental conditions. This will benefit the wind energy industry by reducing initial design and manufacturing costs which can later be passed down to consumers and consequently make the wind energy industry more competitive.

Janet M Twomey, PhD

2010-04-30T23:59:59.000Z

23

Vertical axis wind turbine  

SciTech Connect

Wind turbines are largely divided into vertical axis wind turbines and propeller (Horizontal axis) wind turbines. The present invention discloses a vertical axis high speed wind turbine provided with a starting and braking control system. This vertical axis wind turbine is formed by having blades of a proper airfoil fitted to respective supporting arms provided radially from a vertical rotary axis by keeping the blade span-wise direction in parallel with the axis and being provided with a low speed control windmill in which the radial position of each operating piece varies with a centrifugal force produced by the rotation of the vertical rotary axis.

Kato, Y.; Seki, K.; Shimizu, Y.

1981-01-27T23:59:59.000Z

24

Fixed Offshore Wind Turbines  

Science Journals Connector (OSTI)

In this chapter, a perspective of offshore wind farms, applied concepts for fixed offshore wind turbines, and related statistics are given. One example of a large wind farm, which is successfully operating, is st...

Madjid Karimirad

2014-01-01T23:59:59.000Z

25

Gas Turbine Manufacturers Perspective  

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

Viability and Experience of IGCC From a Viability and Experience of IGCC From a Gas Turbine Manufacturers Perspective ASME - IGCC ASME - IGCC Turbo Turbo Expo Expo June 2001 June 2001 GE Power Systems g Klaus Brun, Ph.D. - Manager Process Power Plant Product & Market Development Robert M. Jones - Project Development Manager Process Power Plants Power Systems Power Systems General Electric Company General Electric Company ABSTRACT GE Power Systems g Economic Viability and Experience of IGCC From a Gas Turbine Manufacturers Perspective High natural gas fuel gas prices combined with new technology developments have made IGCC a competitive option when compared to conventional combined cycle or coal steam turbine cycles. Although the initial investment costs for an IGCC plant are still comparatively high, the low

26

Wind Turbines Benefit Crops  

SciTech Connect

Ames Laboratory associate scientist Gene Takle talks about research into the effect of wind turbines on nearby crops. Preliminary results show the turbines may have a positive effect by cooling and drying the crops and assisting with carbon dioxide uptake.

Takle, Gene

2010-01-01T23:59:59.000Z

27

Barstow Wind Turbine Project  

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

Presentation covers the Barstow Wind Turbine project for the Federal Utility Partnership Working Group (FUPWG) meeting, held on November 18-19, 2009.

28

Foundations for offshore wind turbines  

Science Journals Connector (OSTI)

...T. Thompson Foundations for offshore wind turbines B. W. Byrne G. T...civil-engineering problems encountered for offshore wind turbines. A critical component...energy suppliers. Foundations|Offshore Wind Turbines|Renewable Energy...

2003-01-01T23:59:59.000Z

29

Scale Models & Wind Turbines  

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

Scale Models and Wind Turbines Grades: 5-8, 9-12 Topics: Wind Energy Owner: Kidwind Project This educational material is brought to you by the U.S. Department of Energy's Office of...

30

American Wind Manufacturing | Department of Energy  

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

American Wind Manufacturing American Wind Manufacturing American Wind Manufacturing Addthis 1 of 9 Nordex USA -- a global manufacturer of wind turbines -- delivered and installed turbine components for the Power County Wind Farm, shown here, in Idaho. Image: Nordex USA, Inc. Date taken: 2012-03-05 14:38 2 of 9 Power County Wind Farm - Power County, Idaho. Image: Nordex USA, Inc. Date taken: 2012-03-07 16:16 3 of 9 Power County Wind Farm - Power County, Idaho. Image: Nordex USA, Inc. Date taken: 2012-03-05 17:14 4 of 9 Nordex USA manufacturing facility - Jonesboro, Arkansas. Image: Nordex USA, Inc. Date taken: 2011-05-02 13:55 5 of 9 Nordex USA flagship manufacturing facility in Jonesboro, Arkansas. Image: Nordex USA, Inc. Date taken: 2011-05-02 14:11 6 of 9 Nordex USA flagship manufacturing facility in Jonesboro, Arkansas.

31

Gamesa Wind Turbines Pvt Ltd | Open Energy Information  

Open Energy Info (EERE)

energy Product: Chennai-based wind turbine manufacturing JV. References: Gamesa Wind Turbines Pvt. Ltd.1 This article is a stub. You can help OpenEI by expanding it. Gamesa...

32

Wind Turbine Blade Design  

K-12 Energy Lesson Plans and Activities Web site (EERE)

Blade engineering and design is one of the most complicated and important aspects of modern wind turbine technology. Engineers strive to design blades that extract as much energy from the wind as possible throughout a range of wind speeds and gusts, yet are still durable, quiet and cheap. A variety of ideas for building turbines and teacher handouts are included in this document and at the Web site.

33

Memorandum of Understanding between the U.S. Wind Turbine Manufacturer...  

Office of Environmental Management (EM)

MOU FINAL5-31-08.doc 20% Wind Energy by 2030: Increasing Wind Energy's Contribution to U.S. Electricity Supply 2012 & 2013 Offshore Wind Market & Economic Analysis Reports...

34

NREL: Wind Research - Small Wind Turbine Research  

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

Small Wind Turbine Research Small Wind Turbine Research The National Renewable Energy Laboratory and U.S. Department of Energy (NREL/DOE) Small Wind Project's objectives are to reduce barriers to wind energy expansion, stabilize the market, and expand the number of small wind turbine systems installed in the United States. "Small wind turbine" refers to a turbine smaller than or equal to 100 kilowatts (kW). "Distributed wind" includes small and midsize turbines (100 kW through 1 megawatt [MW]). Since 1996, NREL's small wind turbine research has provided turbine testing, turbine development, and prototype refinement leading to more commercially available small wind turbines. Work is conducted under the following areas. You can also learn more about state and federal policies

35

Wind Energy & Manufacturing | Open Energy Information  

Open Energy Info (EERE)

Wind Energy & Manufacturing Wind Energy & Manufacturing Jump to: navigation, search Blades manufactured at Gamesa's factory in Ebensburg, Pennsylvania, await delivery for development of wind farms across the country in the United States. Photo from Gamesa, NREL 16001 Wind power creates new high-paying jobs in a wide variety of industries. This includes direct jobs installing, operating, and maintaining wind turbines, as well as jobs at manufacturing facilities that produce wind turbines, blades, electronic components, gearboxes, generators, towers, and other equipment. Indirect jobs in the industries that support these activities are also created.[1] In 2012, 72% of the wind turbine equipment (including towers, blades, and gears) installed in the United States during the year was made in

36

NREL: Wind Research - Midsize Wind Turbine Research  

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

Midsize Wind Turbine Research Midsize Wind Turbine Research To facilitate the development and commercialization of midsize wind turbines (turbines with a capacity rating of more than 100 kW up to 1 MW), the U.S. Department of Energy (DOE) and NREL launched the Midsize Wind Turbine Development Project. In its latest study, NREL determined that there is a substantial market for midsize wind turbines. One of the most significant barriers to the midsize turbine market is the lack of turbines available for deployment; there are few midsize turbines on the market today. The objectives of the Midsize Wind Turbine Development Project are to reduce the barriers to wind energy expansion by filling an existing domestic technology gap; facilitate partnerships; accelerate maturation of existing U.S. wind energy businesses; and incorporate process improvement

37

Vertical axis wind turbines  

DOE Patents (OSTI)

A vertical axis wind turbine is described. The wind turbine can include a top ring, a middle ring and a lower ring, wherein a plurality of vertical airfoils are disposed between the rings. For example, three vertical airfoils can be attached between the upper ring and the middle ring. In addition, three more vertical airfoils can be attached between the lower ring and the middle ring. When wind contacts the vertically arranged airfoils the rings begin to spin. By connecting the rings to a center pole which spins an alternator, electricity can be generated from wind.

Krivcov, Vladimir (Miass, RU); Krivospitski, Vladimir (Miass, RU); Maksimov, Vasili (Miass, RU); Halstead, Richard (Rohnert Park, CA); Grahov, Jurij (Miass, RU)

2011-03-08T23:59:59.000Z

38

Advanced Manufacturing Initiative Improves Turbine Blade Productivity...  

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

Advanced Manufacturing Initiative Improves Turbine Blade Productivity Advanced Manufacturing Initiative Improves Turbine Blade Productivity May 20, 2011 - 2:56pm Addthis This is an...

39

Wind Turbine Blockset General Overview  

E-Print Network (OSTI)

Wind Turbine Blockset in Saber General Overview and Description of the Models Florin Iov, Adrian Turbine Blockset in Saber Abstract. This report presents a new developed Saber Toolbox for wind turbine, optimize and design wind turbines". The report provides a quick overview of the Saber and then explains

40

Sandia National Laboratories: wind manufacturing  

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

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

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


41

Energy Department Announces $2 Million to Support Manufacturing of Taller Wind Turbine Towers  

Office of Energy Efficiency and Renewable Energy (EERE)

The Energy Department today announced $2 million for two organizations that will advance technologies to harness stronger winds available at higher heights, potentially increasing the amount of clean, renewable electricity the nation produces.

42

DOE Seeking Proposals to Advance Distributed Wind Turbine Technology and Manufacturing  

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

On December 29, the U.S. Department of Energys National Renewable Energy Laboratory released a third round of Requests for Proposals under DOEs Distributed Wind Competitiveness Improvement Project.

43

Distributed Wind Turbines | Department of Energy  

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

Distributed Wind Turbines Distributed Wind Turbines Addthis 1 of 11 Three 100 kilowatt (kW) wind turbines in Bisaccia, Italy. Last year, U.S. small wind turbines were exported to...

44

How Do Wind Turbines Work?  

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

Instead of using electricity to make wind, like a fan, wind turbines use wind to make electricity. The wind turns the blades, which spin a shaft, which connects to a generator and makes electricity.

45

Optimization of Wind Turbine Operation  

E-Print Network (OSTI)

inclination angle was about 1°. The spinner anemometer measurements were correlated with wind speed and windOptimization of Wind Turbine Operation by Use of Spinner Anemometer TF Pedersen, NN Sørensen, L Title: Optimization of Wind Turbine Operation by Use of Spinner Anemometer Department: Wind Energy

46

DOE Seeking Proposals to Advance Distributed Wind Turbine Technology...  

Energy Savers (EERE)

Project (CIP). The CIP aims to help U.S. manufacturers of small and mid-sized wind turbines with rotor swept areas up to 1,000 square meters improve their turbine designs and...

47

Wind Manufacturing and Supply Chain | Department of Energy  

Office of Environmental Management (EM)

new designs, materials, and processes into manufacturing facilities, thus making wind turbines a more affordable source of renewable energy for communities around the country....

48

Model Predictive Control Wind Turbines  

E-Print Network (OSTI)

Model Predictive Control of Wind Turbines Martin Klauco Kongens Lyngby 2012 IMM-MSc-2012-65 #12;Summary Wind turbines are the biggest part of the green energy industry. Increasing interest control strategies. Control strategy has a significant impact on the wind turbine operation on many levels

49

Danish Wind Turbine Owners Association | Open Energy Information  

Open Energy Info (EERE)

Owners Association Owners Association Jump to: navigation, search Name Danish Wind Turbine Owners' Association Place Aarhus C, Denmark Zip DK-8000 Sector Wind energy Product Danish Wind Turbine Ownersâ€(tm) Association is a non-profit, independent association overseeing wind turbine ownersâ€(tm) mutual interests regarding the authorities, political decision-makers, utilities and wind turbine manufacturers. References Danish Wind Turbine Owners' Association[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Danish Wind Turbine Owners' Association is a company located in Aarhus C, Denmark . References ↑ "Danish Wind Turbine Owners' Association" Retrieved from "http://en.openei.org/w/index.php?title=Danish_Wind_Turbine_Owners_Association&oldid=344068

50

Airborne Wind Turbine  

SciTech Connect

Broad Funding Opportunity Announcement Project: Makani Power is developing an Airborne Wind Turbine (AWT) that eliminates 90% of the mass of a conventional wind turbine and accesses a stronger, more consistent wind at altitudes of near 1,000 feet. At these altitudes, 85% of the country can offer viable wind resources compared to only 15% accessible with current technology. Additionally, the Makani Power wing can be economically deployed in deep offshore waters, opening up a resource which is 4 times greater than the entire U.S. electrical generation capacity. Makani Power has demonstrated the core technology, including autonomous launch, land, and power generation with an 8 meter wingspan, 20 kW prototype. At commercial scale, Makani Power aims to develop a 600 kW, 28 meter wingspan product capable of delivering energy at an unsubsidized cost competitive with coal, the current benchmark for low-cost power.

None

2010-09-01T23:59:59.000Z

51

An Exploration of Wind Energy & Wind Turbines | Department of...  

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

An Exploration of Wind Energy & Wind Turbines An Exploration of Wind Energy & Wind Turbines Below is information about the student activitylesson plan from your search. Grades...

52

Category:Wind turbine | Open Energy Information  

Open Energy Info (EERE)

turbine Jump to: navigation, search Pages in category "Wind turbine" This category contains only the following page. W Wind turbine Retrieved from "http:en.openei.orgw...

53

Tornado type wind turbines  

DOE Patents (OSTI)

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.

Hsu, Cheng-Ting (Ames, IA)

1984-01-01T23:59:59.000Z

54

Brilliant Wind Turbine | GE Global Research  

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

Brilliant(tm) Wind Turbines Push Power and Efficient Boundaries Brilliant(tm) Wind Turbines Push Power and Efficient Boundaries The conventional wisdom around wind is that the...

55

Comparison of Wind-Turbine Aeroelastic Codes Used for Certification: Preprint  

SciTech Connect

NREL created aeroelastic simulators for horizontal-axis wind turbines accepted by Germanischer Lloyd (GL) WindEnergie GmbH for manufacturers to use for on-shore wind turbine certification.

Buhl, M. L., Jr.; Manjock, A.

2006-01-01T23:59:59.000Z

56

Optimum propeller wind turbines  

SciTech Connect

The Prandtl-Betz-Theodorsen theory of heavily loaded airscrews has been adapted to the design of propeller windmills which are to be optimized for maximum power coefficient. It is shown that the simpler, light-loading, constant-area wake assumption can generate significantly different ''optimum'' performance and geometry, and that it is therefore not appropriate to the design of propeller wind turbines when operating in their normal range of high-tip-speed-to-wind-speed ratio. Design curves for optimum power coefficient are presented and an example of the design of a typical two-blade optimum rotor is given.

Sanderson, R.J.; Archer, R.D.

1983-11-01T23:59:59.000Z

57

Airfoils for wind turbine  

DOE Patents (OSTI)

Airfoils are disclosed for the blade of a wind turbine wherein each airfoil is characterized by a thickness in a range from 16%-24% and a maximum lift coefficient designed to be largely insensitive to roughness effects. The airfoils include a family of airfoils for a blade 15 to 25 meters in length, a family of airfoils for a blade 1 to 5 meters in length, and a family of airfoils for a blade 5 to 10 meters in length. 10 figs.

Tangler, J.L.; Somers, D.M.

1996-10-08T23:59:59.000Z

58

NREL: Wind Research - Small Wind Turbine Webinars  

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

Small Wind Turbine Webinars Small Wind Turbine Webinars Here you will find webinars about small wind turbines that NREL hosted. Introducing WindLease(tm): Making Wind Energy Affordable NREL and the American Solar Energy Society (ASES) Wind Division co-hosted this webinar. (Text Version.) Date: August 1, 2013 Run Time: 40 minutes Joe Hess, VP of Business Development at United Wind, described United Wind's WindQuote and WindLease Program and explained the process from the dealer's and consumer's perspective. Texas Renewable Energy Industries Association NREL and the American Solar Energy Society (ASES) Wind Division co-hosted this webinar. (Text Version). Date: March 7, 2013 Run Time: 1 hour Russel Smith, Texas Renewable Energy Industries Association executive director and co-founder, provided an overview of the trade association

59

Wind Turbine Generator System Duration Test Report for the ARE 442 Wind Turbine  

SciTech Connect

This test is being 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, four turbines are being tested at the NWTC as a part of this project. Duration testing is one of up to 5 tests that may be performed on the turbines, including power performance, safety and function, noise, and power quality tests. The results of the testing provide manufacturers with reports that may be used for small wind turbine certification. The test equipment includes a grid connected ARE 442 wind turbine mounted on a 30.5 meter (100 ft) lattice tower manufactured by Abundant Renewable Energy. The system was installed by the NWTC Site Operations group with guidance and assistance from Abundant Renewable Energy.

van Dam, J.; Baker, D.; Jager, D.

2010-05-01T23:59:59.000Z

60

Motion of floating wind turbines.  

E-Print Network (OSTI)

?? Motion of floating wind turbines has been studied. A literature study on different concepts and what tools are available for simulating them is presented. (more)

Linde, Brge

2010-01-01T23:59:59.000Z

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


61

Aerodynamic Analysis of wind turbine.  

E-Print Network (OSTI)

??The thesis investigates the application of vortex theory for analyzing the aerodynamic loads on wind turbine blades. Based on this method, a graphical user friendly (more)

Zarmehri, Ayyoob

2012-01-01T23:59:59.000Z

62

Computational Aerodynamics and Aeroacoustics for Wind Turbines  

E-Print Network (OSTI)

Computational Aerodynamics and Aeroacoustics for Wind Turbines #12;#12;Computational Aerodynamics and Aeroacoustics for Wind Turbines Wen Zhong Shen Fluid Mechanics Department of Mechanical Engineering TECHNICAL Shen, Wen Zhong Computational Aerodynamics and Aeroacoustics for Wind Turbines Doctor Thesis Technical

63

Dynamic Models for Wind Turbines and Wind Power Plants  

SciTech Connect

The primary objective of this report was to develop universal manufacturer-independent wind turbine and wind power plant models that can be shared, used, and improved without any restrictions by project developers, manufacturers, and engineers. Manufacturer-specific models of wind turbines are favored for use in wind power interconnection studies. While they are detailed and accurate, their usages are limited to the terms of the non-disclosure agreement, thus stifling model sharing. The primary objective of the work proposed is to develop universal manufacturer-independent wind power plant models that can be shared, used, and improved without any restrictions by project developers, manufacturers, and engineers. Each of these models includes representations of general turbine aerodynamics, the mechanical drive-train, and the electrical characteristics of the generator and converter, as well as the control systems typically used. To determine how realistic model performance is, the performance of one of the models (doubly-fed induction generator model) has been validated using real-world wind power plant data. This work also documents selected applications of these models.

Singh, M.; Santoso, S.

2011-10-01T23:59:59.000Z

64

Wind Turbine Basics | Department of Energy  

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

Wind Turbine Basics Wind Turbine Basics Wind Turbine Basics July 30, 2013 - 2:58pm Addthis Energy 101: Wind Turbines Basics This video explains the basics of how wind turbines operate to produce clean power from an abundant, renewable resource-the wind. Text Version Wind turbine assembly Although all wind turbines operate on similar principles, several varieties are in use today. These include horizontal axis turbines and vertical axis turbines. Horizontal Axis Turbines Horizontal axis turbines are the most common turbine configuration used today. They consist of a tall tower, atop which sits a fan-like rotor that faces into or away from the wind, a generator, a controller, and other components. Most horizontal axis turbines built today are two- or three-bladed. Horizontal axis turbines sit high atop towers to take advantage of the

65

Towers for Offshore Wind Turbines  

Science Journals Connector (OSTI)

Increasing energy demand coupled with pollution free production of energy has found a viable solution in wind energy. Land based windmills have been utilized for power generation for more than two thousand years. In modern times wind generated power has become popular in many countries. Offshore wind turbines are being used in a number of countries to tap the energy from wind over the oceans and convert to electric energy. The advantages of offshore wind turbines as compared to land are that offshore winds flow at higher speed than onshore winds and the more available space. In some land based settings for better efficiency turbines are separated as much as 10 rotor diameters from each other. In offshore applications where only two wind directions are likely to predominate the distances between the turbines arranged in a line can be shortened to as little as two or four rotor diameters. Today more than a dozen offshore European wind facilities with turbine ratings of 450 kw to 3.6 MW exist offshore in very shallow waters of 5 to 12 m. Compared to onshore wind turbines offshore wind turbines are bigger and the tower height in offshore are in the range of 60 to 80 m. The water depths in oceans where offshore turbines can be located are within 30 m. However as the distance from land increases the costs of building and maintaining the turbines and transmitting the power back to shore also increase sharply. The objective of this paper is to review the parameters of design for the maximum efficiency of offshore wind turbines and to develop types offshore towers to support the wind turbines. The methodology of design of offshore towers to support the wind turbine would be given and the environmental loads for the design of the towers would be calculated for specific cases. The marine corrosion on the towers and the methods to control the corrosion also would be briefly presented. As the wind speeds tend to increase with distance from the shore turbines build father offshore will be able to capture more wind energy. Currently two types of towers are considered. Cylindrical tubular structures and truss type structures. But truss type structures have less weight and flexibility in design. The construction of the offshore towers to harness the wind energy is also presented. The results will include the calculation of wind and wave forces on the tower and the design details for the tower.

V. J. Kurian; S. P. Narayanan; C. Ganapathy

2010-01-01T23:59:59.000Z

66

Vertical axis wind turbine acoustics  

E-Print Network (OSTI)

Vertical Axis Wind Turbine Acoustics Charlie Pearson Corpus Christi College Cambridge University Engineering Department A thesis submitted for the degree of Doctor of Philosophy September 2013 Declaration Described in this dissertation is work... quickly to changing wind conditions, small- scale vertical axis wind turbines (VAWTs) have been proposed as an efficient solution for deployment in built up areas, where the wind is more gusty in nature. If VAWTs are erected in built up areas...

Pearson, Charlie

2014-04-08T23:59:59.000Z

67

Addressing Wind Turbine Tribological Challenges with Surface...  

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

Addressing Wind Turbine Tribological Challenges with Surface Engineering Presented by Gary Doll of the University of Akron at the Wind Turbine Tribology Seminar 2014. Addressing...

68

5th International Meeting Wind Turbine Noise  

E-Print Network (OSTI)

1 5th International Meeting on Wind Turbine Noise Denver 28 ­ 30 August 2013 Wind Turbine Noise Broadband noise generated aerodynamically is the dominant noise source for a modern wind turbine(Brooks et, clean energy. While profiting from wind energy, the noise produced by a modern wind turbine becomes

Paris-Sud XI, Université de

69

Wind Turbine Basics | Department of Energy  

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

Turbine Basics Turbine Basics Wind Turbine Basics July 30, 2013 - 2:58pm Addthis Energy 101: Wind Turbines Basics This video explains the basics of how wind turbines operate to produce clean power from an abundant, renewable resource-the wind. Text Version Wind turbine assembly Although all wind turbines operate on similar principles, several varieties are in use today. These include horizontal axis turbines and vertical axis turbines. Horizontal Axis Turbines Horizontal axis turbines are the most common turbine configuration used today. They consist of a tall tower, atop which sits a fan-like rotor that faces into or away from the wind, a generator, a controller, and other components. Most horizontal axis turbines built today are two- or three-bladed. Horizontal axis turbines sit high atop towers to take advantage of the

70

Hebei Yeelong Wind Power Equipment Manufacturing Co Ltd | Open Energy  

Open Energy Info (EERE)

Yeelong Wind Power Equipment Manufacturing Co Ltd Yeelong Wind Power Equipment Manufacturing Co Ltd Jump to: navigation, search Name Hebei Yeelong Wind Power Equipment Manufacturing Co Ltd Place Hebei Province, China Sector Wind energy Product China-based wind turbine equipment manufacturer. References Hebei Yeelong Wind Power Equipment Manufacturing Co Ltd[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Hebei Yeelong Wind Power Equipment Manufacturing Co Ltd is a company located in Hebei Province, China . References ↑ "[ Hebei Yeelong Wind Power Equipment Manufacturing Co Ltd]" Retrieved from "http://en.openei.org/w/index.php?title=Hebei_Yeelong_Wind_Power_Equipment_Manufacturing_Co_Ltd&oldid=346424

71

NREL: Wind Research - Utility-Scale Wind Turbine Research  

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

wind turbine research addresses performance and reliability issues that large wind turbines experience throughout their lifespan and reduces system costs through innovative...

72

Installing Small Wind Turbines Seminar and Workshop  

E-Print Network (OSTI)

Seminar and Workshop Installing Small Wind Turbines Seminar and Workshop Location: Murdoch January 2011 Details for Registration and Payment: Mr Daniel Jones, National Small Wind Turbine Test: The National Small Wind Turbine Centre at Murdoch University is holding a Small Wind Turbine short training

73

Westwind Wind Turbines | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search Name: Westwind Wind Turbines Place: Northern Ireland, United Kingdom Zip: BT29 4TF Sector: Wind energy Product: Northern Ireland based small scale wind...

74

7,511,624 Wind Energy Overview: Device for monitoring the balance and integrity of wind turbine blades either in  

E-Print Network (OSTI)

oscillations (including imbalances and tracking variations) in wind turbine blades. This technology was tested covering the RPM rate of any wind turbine blade. This invention directly targets the operational monitoring://tto.montana.edu/technologies Technology Available for License In-Field LIDAR Monitoring and Manufacturing Control of Wind Turbine Montana

Maxwell, Bruce D.

75

Parametric design of floating wind turbines  

E-Print Network (OSTI)

As the price of energy increases and wind turbine technology matures, it is evident that cost effective designs for floating wind turbines are needed. The next frontier for wind power is the ocean, yet development in near ...

Tracy, Christopher (Christopher Henry)

2007-01-01T23:59:59.000Z

76

Diffuser Augmented Wind Turbine Analysis Code  

E-Print Network (OSTI)

, it is necessary to develop innovative wind capturing devices that can produce energy in the locations where large conventional horizontal axis wind turbines (HAWTs) are too impractical to install and operate. A diffuser augmented wind turbine (DAWT) is one...

Carroll, Jonathan

2014-05-31T23:59:59.000Z

77

An experimental and numerical study of wind turbine seismic behavior  

E-Print Network (OSTI)

a steel 1-MW wind turbine tower. Engineering Structures,testing of a steel wind turbine tower. Proceedings of theanalysis of steel wind turbine towers in the canadian

Prowell, I.

2011-01-01T23:59:59.000Z

78

Current Challenges in Wind Turbine Tribology | Argonne National...  

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

Current Challenges in Wind Turbine Tribology Presented by Gary Doll of the University of Akron at the Wind Turbine Tribology Seminar 2014. Tribological Challenges in Wind Turbine...

79

Nordex Dongying Wind Power Equipment Manufacturing Co Ltd | Open...  

Open Energy Info (EERE)

Subsidiary of Nordex set-up to manufacture the blades for Nordex s70s771500kw wind turbines. Coordinates: 37.57103, 118.591423 Show Map Loading map......

80

Energy 101: Wind Turbines | Department of Energy  

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

Wind Turbines Wind Turbines Energy 101: Wind Turbines Addthis Description 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. Duration 2:16 Topic Tax Credits, Rebates, Savings Wind Energy Economy Credit Energy Department Video MR. : We've all seen those creaky old windmills on farms, and although they may seem about as low-tech as you can get, those old windmills are the predecessors for new modern wind turbines that generate electricity. The same wind that used to pump water for cattle is now turning giant wind turbines to power cities and homes. OK, have a look at this wind farm in the California desert, a hot desert next to tall mountains - an ideal place for a lot of wind.

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


81

MEASURING IMPACTS TO BIRDS CAUSED BY WIND TURBINES MEASURING IMPACTS TO BIRDS CAUSED BY WIND TURBINES  

E-Print Network (OSTI)

APPENDIX A MEASURING IMPACTS TO BIRDS CAUSED BY WIND TURBINES #12;A-1 APPENDIX A MEASURING IMPACTS TO BIRDS CAUSED BY WIND TURBINES 1.0 INTRODUCTION Differential composition of wind turbines at wind energy used is the number of fatalities per wind turbine per year (Anderson et al. 1999). This metric has

82

TOWARDS LIFE-CYCLE MANAGEMENT OF WIND TURBINES BASED ON STRUCTURAL HEALTH MONITORING  

E-Print Network (OSTI)

TOWARDS LIFE-CYCLE MANAGEMENT OF WIND TURBINES BASED ON STRUCTURAL HEALTH MONITORING K. Smarsly1) strategies can enable wind turbine manufacturers, owners, and operators to precisely schedule maintenance behavior of wind turbines and to reduce (epistemic) uncertainty. Both the resistance parameters

Stanford University

83

On modelling of grouped reliability data for wind turbines  

Science Journals Connector (OSTI)

......Special Issue Maintenance Modelling...data for wind turbines F. P. A...generation by wind turbines (WTs) has...turbines or maintenance activities...generation by wind turbines (WTs) has...turbines or maintenance activities......

F. P. A. Coolen; F. Spinato; D. Venkat

2010-10-01T23:59:59.000Z

84

Wind Energy In America: Supporting Our Manufacturers | Department of Energy  

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

In America: Supporting Our Manufacturers In America: Supporting Our Manufacturers Wind Energy In America: Supporting Our Manufacturers August 16, 2012 - 10:01am Addthis 1 of 9 Nordex USA -- a global manufacturer of wind turbines -- delivered and installed turbine components for the Power County Wind Farm, shown here, in Idaho. Image: Nordex USA, Inc. Date taken: 2012-03-05 14:38 2 of 9 Power County Wind Farm - Power County, Idaho. Image: Nordex USA, Inc. Date taken: 2012-03-07 16:16 3 of 9 Power County Wind Farm - Power County, Idaho. Image: Nordex USA, Inc. Date taken: 2012-03-05 17:14 4 of 9 Nordex USA manufacturing facility - Jonesboro, Arkansas. Image: Nordex USA, Inc. Date taken: 2011-05-02 13:55 5 of 9 Nordex USA flagship manufacturing facility in Jonesboro, Arkansas. Image: Nordex USA, Inc. Date taken: 2011-05-02 14:11

85

Wind power manufacturing and supply chain summit USA.  

SciTech Connect

The area of wind turbine component manufacturing represents a business opportunity in the wind energy industry. Modern wind turbines can provide large amounts of electricity, cleanly and reliably, at prices competitive with any other new electricity source. Over the next twenty years, the US market for wind power is expected to continue to grow, as is the domestic content of installed turbines, driving demand for American-made components. Between 2005 and 2009, components manufactured domestically grew eight-fold to reach 50 percent of the value of new wind turbines installed in the U.S. in 2009. While that growth is impressive, the industry expects domestic content to continue to grow, creating new opportunities for suppliers. In addition, ever-growing wind power markets around the world provide opportunities for new export markets.

Hill, Roger Ray

2010-12-01T23:59:59.000Z

86

Energy 101: Wind Turbines - 2014 Update  

ScienceCinema (OSTI)

See how wind turbines generate clean electricity from the power of wind. The video highlights the basic principles at work in wind turbines, and illustrates how the various components work to capture and convert wind energy to electricity. This updated version also includes information on the Energy Department's efforts to advance offshore wind power. Offshore wind energy footage courtesy of Vestas.

None

2014-06-05T23:59:59.000Z

87

Energy 101: Wind Turbines - 2014 Update  

SciTech Connect

See how wind turbines generate clean electricity from the power of wind. The video highlights the basic principles at work in wind turbines, and illustrates how the various components work to capture and convert wind energy to electricity. This updated version also includes information on the Energy Department's efforts to advance offshore wind power. Offshore wind energy footage courtesy of Vestas.

None

2014-05-06T23:59:59.000Z

88

Offshore Wind Turbines and Their Installation  

Science Journals Connector (OSTI)

Offshore winds tend to be higher, more constant and not disturbed by rough terrain, so there is a large potential for utilizing wind energy near to the sea. Compared with the wind energy converters onland, wind turbine components offshore will subject ... Keywords: renewable energy, wind power generation, offshore wind turbines, offshore installation

Liwei Li; Jianxing Ren

2010-01-01T23:59:59.000Z

89

Energy 101: Wind Turbines | Department of Energy  

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

Wind Turbines Wind Turbines Energy 101: Wind Turbines Addthis Below is the text version for the Energy 101: Wind Turbines video. The video opens with "Energy 101: Wind Turbines." This is followed by wooden windmills on farms. We've all seen those creaky, old windmills on farms. And although they may seem about as low-tech as you can get, those old windmills are the predecessors for new, modern wind turbines that generat electricity. The video pans through shots of large windmills and wind farms of different sizes, situated on cultivated plains and hills. The same wind that used to pump water for cattle is now turning giant wind turbines to power cities and homes. OK, have a look at this wind farm in the California desert. A hot desert, next to tall mountains. An ideal place for a lot of wind.

90

WINDExchange: Siting Wind Turbines  

Wind Powering America (EERE)

Wind Wildlife Institute (AWWI) facilitates timely and responsible development of wind energy, while protecting wildlife and wildlife habitat. AWWI was created and is sustained by...

91

Maglev Wind Turbine Technologies | Open Energy Information  

Open Energy Info (EERE)

Maglev Wind Turbine Technologies Maglev Wind Turbine Technologies Jump to: navigation, search Name Maglev Wind Turbine Technologies Place Sierra Vista, Arizona Zip 85635 Sector Wind energy Product The new company employs magnetic levitation (Maglev) technology in its wind turbines, which it says will have a longer life span, be cheaper to build, and produce 1GW of energy each. References Maglev Wind Turbine Technologies[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Maglev Wind Turbine Technologies is a company located in Sierra Vista, Arizona . References ↑ "Maglev Wind Turbine Technologies" Retrieved from "http://en.openei.org/w/index.php?title=Maglev_Wind_Turbine_Technologies&oldid=348578"

92

2.10 - Electrical Parts of Wind Turbines  

Science Journals Connector (OSTI)

Abstract This section presents the electrical subsystem of a wind turbine. Specifically, the power control, the generator, the power electronics, the grid connection, and the lightning protection modules are discussed. Though the content is targeted to present-day megawatt turbine, small machines are shortly presented. A list of the most important manufacturers in the field is also included. Finally, future outlook is described.

G.S. Stavrakakis

2012-01-01T23:59:59.000Z

93

Keeping America Competitive: Bringing Down the Cost of Small Wind Turbines  

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

Keeping America Competitive: Bringing Down the Cost of Small Wind Keeping America Competitive: Bringing Down the Cost of Small Wind Turbines Keeping America Competitive: Bringing Down the Cost of Small Wind Turbines January 23, 2013 - 2:26pm Addthis Bison standing in front of a 10 kW wind turbine manufactured by Bergey Windpower Company. | Photo by Northwest Seed, NREL. Bison standing in front of a 10 kW wind turbine manufactured by Bergey Windpower Company. | Photo by Northwest Seed, NREL. Mark Higgins Operations Supervisor, Wind & Water Power Technologies Office How can I participate? Interested in a small wind turbine for your home? Here's information to guide you. How do we stay competitive in the global wind energy market? A key component is continued leadership in manufacturing small wind turbines - those rated at 100 kilowatts or less.

94

Operation of a third generation wind turbine  

SciTech Connect

A modern wind turbine was installed on May 26, 1982, at the USDA Conservation and Production Research Laboratory, Bushland, Texas. This wind machine was used to provide electrical energy for irrigation pumping and other agricultural loads. The wind turbine purchased for this research is an Enertech Model 44, manufactured by Enertech Corporation, Norwich, Vermont. The horizontal-axis wind turbine has a 13.4 m diameter, three-bladed, fixed-pitch rotor on a 24.4-m tower. The blades are laminated epoxy-wood, and are attached to a steel hub. A 25-kW induction generator provides 240 V, 60 Hz, single-phase electrical power. The wind turbine operated 64 percent of the time, while being available to operate over 94 percent of the time. The unit had a net energy production of over 80,000 kWh in an average windspeed of 5.9 m/s at a height of 10 m in a 16-month period. The blade pitch was originally offset two degrees from design to maintain power production within the limitations of the gearbox, generator, and brakes. A maximum output of 23.2 kW averaged over a 15-second period indicated that with a new brake, the system was capable of handling more power. After a new brake was installed, the blade pitch was changed to one degree from design. The maximum power output measured after the pitch change was 29.3 kW. Modified blade tip brakes were installed on the wind turbine on July 7, 1983. These tip brakes increased power production at lower windspeeds while reducing power at higher windspeeds.

Vosper, F.C.; Clark, R.N.

1983-12-01T23:59:59.000Z

95

NREL: Wind Research - Advanced Research Turbines  

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

Research Turbines Two 440 foot meteorological towers are upwind of two research wind turbines. Two 600-kW Westinghouse turbines at the NWTC are used to test new control schemes...

96

20% Wind Energy by 2030 - Chapter 2: Wind Turbine Technology...  

Office of Environmental Management (EM)

20% Wind Energy by 2030: Increasing Wind Energy's Contribution to U.S. Electricity Supply U.S. Offshore Wind Manufacturing and Supply Chain Development Wind Program Accomplishments...

97

An experimental and numerical study of wind turbine seismic behavior  

E-Print Network (OSTI)

of Seismic and Wind Load Combinations 8.5.2 Extremeextrapolation for wind turbine extreme loads. Wind Energy,extrapolation for wind turbine extreme loads. 46th AIAA

Prowell, I.

2011-01-01T23:59:59.000Z

98

Understanding Trends in Wind Turbine Prices Over the Past Decade  

E-Print Network (OSTI)

include some offshore wind turbines. That said, the factoffshore wind still accounts for a relatively small portion of Vestas turbine

Bolinger, Mark

2012-01-01T23:59:59.000Z

99

Building the Basic PVC Wind Turbine  

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

Energy Smart CD- Building PVC Turbine 8 Some Blade Building Tips KidWind model wind turbines are designed for use in science classes, or as a hobby or science fair project....

100

Dispersal of measured sound power levels for wind turbines  

Science Journals Connector (OSTI)

The standard IEC 61400?11 provides guidance in the measurement analysis and reporting of acoustic emissions(sound power levels) from wind turbine generator systems. The application of this standard aims to provide accurate results that can be replicated by others. We did several measurement operations according to this standard on various wind farms fitted with many turbine manufacturers on different ground types. Important differences have been noticed with equal working conditions between the most and the less noisy wind turbine on a single farm. We will present these results compared to the manufacturers' guaranteed values and initiate explanations (like the difficulties to link the wind speed at 10m above ground with the wind speed received at hub height; or the influence of wind incidence on blades).

Ren Gamba; Sbastien Garrigues

2008-01-01T23:59:59.000Z

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


101

The Political Economy of Wind Power in China  

E-Print Network (OSTI)

wind manufacturers to produce offshore wind turbines withturbines, including those suitable for offshore wind farms.

Swanson, Ryan Landon

2011-01-01T23:59:59.000Z

102

Energy 101: Wind Turbines- 2014 Update  

Office of Energy Efficiency and Renewable Energy (EERE)

The video highlights the basic principles at work in wind turbines, and illustrates how the various components work to capture and convert wind energy to electricity.

103

Xi an Nordex Wind Turbine Co Ltd aka Xi an Weide Wind Power Equipment Co  

Open Energy Info (EERE)

Xi an Nordex Wind Turbine Co Ltd aka Xi an Weide Wind Power Equipment Co Xi an Nordex Wind Turbine Co Ltd aka Xi an Weide Wind Power Equipment Co Ltd Jump to: navigation, search Name Xi'an Nordex Wind Turbine Co Ltd (aka Xi'an Weide Wind Power Equipment Co Ltd) Place Xi An, Shaanxi Province, China Zip 710021 Sector Wind energy Product Subsidiary of Xiâ€(tm)an Aero-Engine that manufactures its 600kW wind turbines in Xi An, China. References Xi'an Nordex Wind Turbine Co Ltd (aka Xi'an Weide Wind Power Equipment Co Ltd)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Xi'an Nordex Wind Turbine Co Ltd (aka Xi'an Weide Wind Power Equipment Co Ltd) is a company located in Xi An, Shaanxi Province, China . References ↑ "[ Xi'an Nordex Wind Turbine Co Ltd (aka Xi'an Weide Wind

104

Timken Producing Parts for Wind Turbines | Department of Energy  

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

Timken Producing Parts for Wind Turbines Timken Producing Parts for Wind Turbines Timken Producing Parts for Wind Turbines June 28, 2010 - 3:38pm Addthis Some of Timken’s bearings are so large that a small car could conceivably drive through the center. | Photo courtesy of The Timken Company Some of Timken's bearings are so large that a small car could conceivably drive through the center. | Photo courtesy of The Timken Company Lindsay Gsell The Timken Company - which will be 111-years-old this year - has a long tradition of investing in new technologies. After assessing their business in recent years, the Ohio-based, global manufacturer saw a market opportunity and decided to invest in a new manufacturing capability: producing the massive bearings for large wind turbines. "Timken has the tenacity to continue to invest into the trough of the

105

Prototype bucket foundation for wind turbines  

E-Print Network (OSTI)

Prototype bucket foundation for wind turbines -natural frequency estimation Lars Bo Ibsen Morten bucket foundation for wind turbines -natural frequency estimation by Lars Bo Ibsen Morten Liingaard foundation for wind turbines--natural frequency estimation" is divided into four numbered sections

106

Wind Turbine Blockset in Matlab/Simulink  

E-Print Network (OSTI)

Wind Turbine Blockset in Matlab/Simulink General Overview and Description of the Models Florin Iov, Anca Daniela Hansen, Poul Sørensen, Frede Blaabjerg Aalborg University March 2004 #12;22 Wind Turbine to model, optimize and design wind turbines" and it has been used as a general developer tool for other

107

Safety and Function Test Report for the SWIFT Wind Turbine  

SciTech Connect

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. Three turbines where selected for testing at the National Wind Technology Center (NWTC) as a part of round two of the Small Wind Turbine Independent Testing project. Safety and Function testing is one of up to 5 tests that may be performed on the turbines. Other tests include power performance, duration, noise, and power quality. The results of the testing will provide the manufacturers with reports that may be used for small wind turbine certification.

Mendoza, I.; Hur, J.

2013-01-01T23:59:59.000Z

108

Exploring the Wind Manufacturing Map | Department of Energy  

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

Wind Manufacturing Map Wind Manufacturing Map Exploring the Wind Manufacturing Map August 15, 2012 - 5:01pm Addthis America's wind energy industry supports a growing domestic industrial base. Check out this map to find manufacturing facilities in your state. Matthew Loveless Matthew Loveless Data Integration Specialist, Office of Public Affairs What are the key facts? The domestic wind manufacturing industry has grown dramatically in the last 5 years, and now nearly 70 percent of the turbines installed in the United States are built here. The growth of the wind energy industry in the United States includes an expanding domestic manufacturing base, with 13 facilities that opened in 2010 and an additional 16 in 2011. These and older facilities are visualized by the map above using data collected by the National

109

Reliability analysis of wind turbine at high uncertain wind;.  

E-Print Network (OSTI)

??Wind energy plays a vital role in the renewable energy scenario of newlinethe world The wind turbine systems have complex components which are newlinerepairable The (more)

Sunder selwyn T

2014-01-01T23:59:59.000Z

110

Understanding Trends in Wind Turbine Prices Over the Past Decade  

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

Understanding Trends in Wind Turbine Prices Over the Past Decade Understanding Trends in Wind Turbine Prices Over the Past Decade Title Understanding Trends in Wind Turbine Prices Over the Past Decade Publication Type Report Refereed Designation Unknown Year of Publication 2011 Authors Bolinger, Mark, and Ryan H. Wiser Pagination 46 Date Published 10/2011 Publisher LBNL City Berkeley Keywords electricity markets and policy group, energy analysis and environmental impacts department Abstract Berkeley Lab has gathered price data on 81 U.S. wind turbine transactions totaling 23,850 MW announced from 1997 through early 2011. Figure ES-1 depicts these reported wind turbine transaction prices (along with the associated trend line), broken out by the size of the transaction (in MW). Figure ES-1 also presents average (global) turbine prices reported by Vestas for the years 2005 through 2010, as well as a range of reported pricing (among various turbine manufacturers) for transactions signed in 2010 and so far in 2011 (with 2011 prices generally lower than 2010 prices). After hitting a low of roughly $750/kW from 2000 to 2002, average wind turbine prices doubled through 2008, rising to an average of roughly $1,500/kW. Wind turbine prices have since declined substantially, with price quotes for transactions executed in 2010 and to date in 2011 ranging from $900-$1,400/kW depending on the manufacturer and turbine model. For example, turbines designed for lower wind speed sites - deploying higher hub heights and larger rotor diameters for a given nameplate capacity - are priced at the higher end of this range. These quotes suggest price declines of as much as 33% or more since late 2008, with an average decline closer to perhaps 20% for orders announced in 2010 (as opposed to in 2011, which has seen further price declines). These two substantial and opposing wind turbine price trends over the past decade - and particularly the doubling in prices in the 2002-2008 period - run counter to the smooth, gradually declining technology cost trajectories that are often assumed by energy analysts modeling the diffusion of new technologies, including wind power. Understanding and explaining this notable discrepancy between theory and historical reality is the primary motivation for this work. Taking a bottom-up approach, this report examines seven primary drivers of wind turbine prices in the United States, with the goal of estimating the degree to which each contributed to the doubling in turbine prices from 2002 through 2008, as well as the subsequent decline in prices through 2010 (our analysis does not extend into 2011 because several of these drivers are best gauged on a full-year basis due to seasonality issues).

111

Midsize Wind Turbines for the U.S. Community Wind Market | Department...  

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

Midsize Wind Turbines for the U.S. Community Wind Market Midsize Wind Turbines for the U.S. Community Wind Market Midsize Wind Turbines for the U.S. Community Wind Market More...

112

Stakeholder Engagement and Outreach: Siting Wind Turbines  

Wind Powering America (EERE)

Resources & Tools Resources & Tools Siting Wind Turbines Wind Powering America works to increase deployment of wind energy. This page provides resources about wind turbine siting. American Wind Wildlife Institute The American Wind Wildlife Institute (AWWI) facilitates timely and responsible development of wind energy, while protecting wildlife and wildlife habitat. AWWI was created and is sustained by a unique collaboration of environmentalists, conservationists, state wildlife agencies, and wind industry leaders. Its purpose is to help lay the scientific groundwork and best practices for wind farm siting and operations, through targeted initiatives: wind-wildlife research, landscape assessment, mitigation, and education. Ordinances Regulating Development of Commercial Wind Energy Facilities

113

Definition: Wind turbine | Open Energy Information  

Open Energy Info (EERE)

turbine turbine Jump to: navigation, search Dictionary.png Wind turbine A machine that converts wind energy to mechanical energy; typically connected to a generator to produce electricity.[1][2] View on Wikipedia Wikipedia Definition A wind turbine is a device that converts kinetic energy from the wind, also called wind energy, into mechanical energy in a process known as wind power. If the mechanical energy is used to produce electricity, the device may be called a wind turbine or wind power plant. If the mechanical energy is used to drive machinery, such as for grinding grain or pumping water, the device is called a windmill or wind pump. Similarly, it may be referred to as a wind charger when used for charging batteries. The result of over a millennium of windmill development and modern engineering,

114

Advanced controls for floating wind turbines  

E-Print Network (OSTI)

Floating Offshore Wind Turbines (FOWT) is a technology that stands to spearhead the rapid growth of the offshore wind energy sector and allow the exploration of vast high quality wind resources over coastal and offshore ...

Casanovas, Carlos (Casanovas Bermejo)

2014-01-01T23:59:59.000Z

115

Utility-Scale Wind Turbines | Open Energy Information  

Open Energy Info (EERE)

Utility-Scale Wind Turbines Jump to: navigation, search Field testing of a wind turbine drivetraintower damper using advanced design and validation techniques at the National Wind...

116

How Does a Wind Turbine Work? | Department of Energy  

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

Work? How Does a Wind Turbine Work? How does a wind turbine work? Previous Next Wind turbines operate on a simple principle. The energy in the wind turns two or three...

117

NREL: Learning - Wind Energy Basics: How Wind Turbines Work  

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

Wind Energy Basics: How Wind Turbines Work Wind Energy Basics: How Wind Turbines Work We have been harnessing the wind's energy for hundreds of years. From old Holland to farms in the United States, windmills have been used for pumping water or grinding grain. Today, the windmill's modern equivalent-a wind turbine-can use the wind's energy to generate electricity. Wind turbines, like windmills, are mounted on a tower to capture the most energy. At 100 feet (30 meters) or more aboveground, they can take advantage of the faster and less turbulent wind. Turbines catch the wind's energy with their propeller-like blades. Usually, two or three blades are mounted on a shaft to form a rotor. A blade acts much like an airplane wing. When the wind blows, a pocket of low-pressure air forms on the downwind side of the blade. The low-pressure

118

Computational Analysis of Shrouded Wind Turbine Configurations  

E-Print Network (OSTI)

Computational Analysis of Shrouded Wind Turbine Configurations Aniket C. Aranake Vinod K. Lakshminarayan Karthik Duraisamy Computational analysis of diuser-augmented turbines is performed using high-dimensional simulations of shrouded wind turbines are performed for selected shroud geometries. The results are compared

Alonso, Juan J.

119

Wind Turbine Gearbox Failure Modes - A Brief (Presentation)  

SciTech Connect

Wind turbine gearboxes are not always meeting 20-year design life. Premature failure of gearboxes increases cost of energy, turbine downtime, unplanned maintenance, gearbox replacement and rebuild, and increased warranty reserves. The problem is widespread, affects most Original Equipment Manufacturers, and is not caused by manufacturing practices. There is a need to improve gearbox reliability and reduce turbine downtime. The topics of this presentation are: GRC (Gearbox Reliability Collaborative) technical approach; Gearbox failure database; Recorded incidents summary; Top failure modes for bearings; Top failure modes for gears; GRC test gearbox; Bearing nomenclature; Test history; Real damage; Gear sets; Bearings; Observations; and Summary. 5 refs.

Sheng, S.; McDade, M.; Errichello, R.

2011-10-01T23:59:59.000Z

120

On the Fatigue Analysis of Wind Turbines  

SciTech Connect

Modern wind turbines are fatigue critical machines that are typically used to produce electrical power from the wind. Operational experiences with these large rotating machines indicated that their components (primarily blades and blade joints) were failing at unexpectedly high rates, which led the wind turbine community to develop fatigue analysis capabilities for wind turbines. Our ability to analyze the fatigue behavior of wind turbine components has matured to the point that the prediction of service lifetime is becoming an essential part of the design process. In this review paper, I summarize the technology and describe the ''best practices'' for the fatigue analysis of a wind turbine component. The paper focuses on U.S. technology, but cites European references that provide important insights into the fatigue analysis of wind turbines.

Sutherland, Herbert J.

1999-06-01T23:59:59.000Z

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


121

Wind Turbines for Marine Propulsion  

Science Journals Connector (OSTI)

ABSTRACT The design and construction of an horizontal axis wind turbine drive for a small yacht is described. This system has been designed to test the performance of this novel type of propulsion for use in commercial shipping, the fisheries industry and for the recreational market. The use of wind turbines to harness the power available from the wind for propulsion purposes offers a number of distinct advantages over other wind propulsion systems. Propulsion is achieved in all directions of travel relative to the wind. Complete control of the system can be arranged from a remote control position such as the ships bridge. This control can be achieved with a small crew because of the opportunities for applying powered and automated control systems. The way in which each of these features is achieved, together with details of the rotor, shafting and gear-train arrangements are described here. An indication is given of the theoretical performance of the yacht under this form of propulsion.

N. Bose; R.C. McGregor

1984-01-01T23:59:59.000Z

122

Performance of propeller wind turbines  

SciTech Connect

Presented herein is a parametric study of the performance of propeller wind turbines with realistic drag/lift ratios. Calculations were made using the complete Glauert vortex blade element theory in annular streamtube elements with the complete turbine performance being the sum of the elemental results up to a specified tip speed ratio. The objective here is to exhibit a new computational technique which yields performance directly when tangential speed ratio and section aerodynamic characteristics are specified. It was found that for a tip speed ratio of 4, turbines with drag/lift ratios of 0.00 and 0.01 had power coefficients of 0.575 and 0.55, respectively. The off-design performance of the finite drag/lift was far better than that of their zero drag counterparts, except in a + or - 20% region about the design conditions. Tolerance to off-design operation increased with decreasing tip speed ratios so that the annual energy capture for tip speed ratios between 2 and 4 was about 87% of the ideal turbine value. The results are intended to provide a basis for re-evaluation of the power range classes of fixed pitch turbines and design tip speed ratios.

Wortman, A.

1983-11-01T23:59:59.000Z

123

Energy 101: Wind Turbines | Department of Energy  

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

Wind Turbines Wind Turbines Energy 101: Wind Turbines July 30, 2010 - 10:47am Addthis John Schueler John Schueler Former New Media Specialist, Office of Public Affairs On Tuesday, the Department announced a $117 million loan guarantee through for the Kahuku Wind Power Project in Hawaii. That's a major step forward for clean energy in the region, as it's expected to supply clean electricity to roughly 7,700 households per year, and it also invites a deceptively simple question: how exactly do wind turbines generate electricity? One thing you might not realize is that wind is actually a form of solar energy. This is because wind is produced by the sun heating Earth's atmosphere, the rotation of the earth, and the earth's surface irregularities. Wind turbines are the rotary devices that convert the

124

Tribological advancements for reliable wind turbine performance  

Science Journals Connector (OSTI)

...the gearbox components. Wind turbine gearboxes experience...the generators to the power grid, respectively...can produce a torsional wind-up of the components...Pontius2009Main shaft support for wind turbine with a fixed and...44061999 Hydraulic fluid power-fluids-method of coding...

2010-01-01T23:59:59.000Z

125

Offshore Wind Turbine Wakes Measured by Sodar  

Science Journals Connector (OSTI)

A ship-mounted sodar was used to measure wind turbine wakes in an offshore wind farm in Denmark. The wake magnitude and vertical extent were determined by measuring the wind speed profile behind an operating turbine, then shutting down the ...

R. J. Barthelmie; L. Folkerts; F. T. Ormel; P. Sanderhoff; P. J. Eecen; O. Stobbe; N. M. Nielsen

2003-04-01T23:59:59.000Z

126

NREL: Wind Research - Mariah Power's Windspire Wind Turbine Testing and  

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

Mariah Power's Windspire Wind Turbine Testing and Results Mariah Power's Windspire Wind Turbine Testing and Results A video of Mariah Power's Windspire wind turbine. Text Version As part of the National Renewable Energy Laboratory and U.S. Department of Energy (NREL/DOE) Independent Testing project, NREL tested Mariah Power's Windspire Giromill small wind turbine at the National Wind Technology Center (NWTC) through January 14, 2009 when NREL terminated its testing. Read a chronology of events and letter from Mariah Power to NREL. The Windspire is a 1.2-kilowatt (kW) vertical-axis small wind turbine. The turbine tower is 9.1 meters tall, and its rotor area is 1.2 by 6.1 meters. The turbine has a permanent-magnet generator with a single-phase output at 120 volts AC. Testing Summary Testing was terminated January 14, 2009. Published test reports include

127

Astraeus Wind Modifies Manufacturing in Michigan | Department of Energy  

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

Astraeus Wind Modifies Manufacturing in Michigan Astraeus Wind Modifies Manufacturing in Michigan Astraeus Wind Modifies Manufacturing in Michigan May 14, 2010 - 3:35pm Addthis Lindsay Gsell When the assembly line was introduced to the automobile industry, everything changed. Cars were produced in less time with fewer errors, and each one was exactly the same as the last. As a result, the industry boomed. Astraeus Wind LLC hopes to bring this type of success to wind turbine manufacturing by standardizing the blade manufacturing process. The company wants to experiment with new materials to strengthen the blades while creating an automated process to assemble them, creating identical blades in a fast, efficient manner. CEO Jeff Metts says standardizing this process will help ensure each blade has the same measurements, lower the amount of time needed for production

128

Offshore Wind Turbines Estimated Noise from Offshore Wind Turbine, Monhegan Island, Maine Addendum 2  

SciTech Connect

Additional modeling for offshore wind turbines, for proposed floating wind platforms to be deployed by University of Maine/DeepCwind.

Aker, Pamela M.; Jones, Anthony M.; Copping, Andrea E.

2011-03-01T23:59:59.000Z

129

Structural Analyses of Wind Turbine Tower for 3 kW Horizontal Axis Wind Turbine.  

E-Print Network (OSTI)

?? Structure analyses of a steel tower for Cal Poly's 3 kW small wind turbine is presented. First, some general design aspects of the wind (more)

Gwon, Tae gyun (Tom)

2011-01-01T23:59:59.000Z

130

Cost Study for Large Wind Turbine Blades  

SciTech Connect

The cost study for large wind turbine blades reviewed three blades of 30 meters, 50 meters, and 70 meters in length. Blade extreme wind design loads were estimated in accordance with IEC Class I recommendations. Structural analyses of three blade sizes were performed at representative spanwise stations assuming a stressed shell design approach and E-glass/vinylester laminate. A bill of materials was prepared for each of the three blade sizes using the laminate requirements prepared during the structural analysis effort. The labor requirements were prepared for twelve major manufacturing tasks. TPI Composites developed a conceptual design of the manufacturing facility for each of the three blade sizes, which was used for determining the cost of labor and overhead (capital equipment and facilities). Each of the three potential manufacturing facilities was sized to provide a constant annual rated power production (MW per year) of the blades it produced. The cost of the production tooling and overland transportation was also estimated. The results indicate that as blades get larger, materials become a greater proportion of total cost, while the percentage of labor cost is decreased. Transportation costs decreased as a percentage of total cost. The study also suggests that blade cost reduction efforts should focus on reducing material cost and lowering manufacturing labor, because cost reductions in those areas will have the strongest impact on overall blade cost.

ASHWILL, THOMAS D.

2003-05-01T23:59:59.000Z

131

Stakeholder Engagement and Outreach: Wind Turbine Ordinances  

Wind Powering America (EERE)

Information Information Resources Printable Version Bookmark and Share Publications Success Stories Webinars Podcasts Videos Stakeholder Interviews Lessons Learned Wind Working Groups Economic Impact Studies Wind Turbine Ordinances Wind Turbine Ordinances This page lists 135 state and local wind turbine ordinances. State and local governments and policymakers can use this collection of example wind turbine ordinances when drafting a new wind energy ordinance in a town or county without existing ordinances. Due to increasing energy demands in the United States and more installed wind projects, rural communities and local governments with limited or no experience with wind energy now have the opportunity to become involved in this industry. Communities with good wind resources may be approached by

132

Aeroelastic simulation of wind turbine blades  

Science Journals Connector (OSTI)

The aim of this chapter is to compute dynamic stresses acting on wind turbine blades. These stresses are essential in predicting fatigue of the rotor.

Z.L. Mahri; M.S. Rouabah; Z. Said

2009-01-01T23:59:59.000Z

133

Robotic Wind Turbine Inspection | GE Global Research  

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

Trials GE Global Research is advancing technology that will make the inspection of wind turbines faster and more reliable for customers. Currently, an inspector examines the...

134

Dynamic Response of Floating Wind Turbines.  

E-Print Network (OSTI)

?? In this thesis the extreme values of tension in the mooring lines on Hywind Demo is investigated. Hywind Demo is a floating wind turbine (more)

Neuenkirchen God, Sjur

2013-01-01T23:59:59.000Z

135

Aeroelastic analysis of an offshore wind turbine.  

E-Print Network (OSTI)

?? Aeroelastic design and fatigue analysis of large utility-scale wind turbine blades are performed. The applied fatigue model is based on established methods and is (more)

Fossum, Peter Kalsaas

2012-01-01T23:59:59.000Z

136

Sandia National Laboratories: wind turbine blade materials  

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

Doppler Velocimeter EC Top Publications A Comparison of Platform Options for Deep-water Floating Offshore Vertical Axis Wind Turbines: An Initial Study Nonlinear Time-Domain...

137

Sandia National Laboratories: wind turbine blade reliability  

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

Doppler Velocimeter EC Top Publications A Comparison of Platform Options for Deep-water Floating Offshore Vertical Axis Wind Turbines: An Initial Study Nonlinear Time-Domain...

138

Structural reliability of offshore wind turbines.  

E-Print Network (OSTI)

??Statistical extrapolation is required to predict extreme loads, associated with a target return period, for offshore wind turbines. In statistical extrapolation, short-term" distributions of the (more)

Agarwal, Puneet, 1977-

2012-01-01T23:59:59.000Z

139

Dynamic analysis of a 5 megawatt offshore floating wind turbine  

E-Print Network (OSTI)

1985. 23. Hau, E. Wind Turbines: Fundamentals, Technologies,for Floating Offshore Wind Turbines. Tech. no. NREL/CP-500-Full-scale Floating Wind Turbine." Statoil, 14 Oct. 2009.

Harriger, Evan Michael

2011-01-01T23:59:59.000Z

140

Impacts of Wind Turbine Proximity on Property Values in Massachusetts  

E-Print Network (OSTI)

of Industrial Wind Turbine Noise on Sleep and Health.Waye, K. P. (2007) Wind Turbine Noise, Annoyance and Self-and Annoyance of Wind Turbine Noise. Acta Acus- tica United

Atkinson-Palombo, Carol

2014-01-01T23:59:59.000Z

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


141

Dynamic analysis of a 5 megawatt offshore floating wind turbine  

E-Print Network (OSTI)

5-MW Reference Wind Turbine for Offshore System Development.for Floating Offshore Wind Turbines. Tech. no. NREL/CP-500-a Spar-type Floating Offshore Wind Turbine. Thesis. TU Delft

Harriger, Evan Michael

2011-01-01T23:59:59.000Z

142

Sandia National Laboratories: New Wind Turbine Blade Design  

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

ClimateECEnergyNew Wind Turbine Blade Design New Wind Turbine Blade Design More Energy with Less Weight ATLAS II Data Acquisition System New Wind Turbine Blade Design On May 18,...

143

Dynamic analysis of a 5 megawatt offshore floating wind turbine  

E-Print Network (OSTI)

wind turbine. Rating Control Rotor Radius Rated Wind Speed Towerwind turbine is used in this design, however there are slight modifications of the tower.of the tower. Figure 2.3: NREL 5 MW Reference Wind Turbine [

Harriger, Evan Michael

2011-01-01T23:59:59.000Z

144

Wind Turbine Transportation in Toyland | GE Global Research  

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

Edison's Desk > Wind Turbine Transportation in Toyland Wind Turbine Transportation in Toyland Charles (Burt) Theurer 2011.05.27 GE doesn't just make wind turbines. We also deliver...

145

On modelling of grouped reliability data for wind turbines  

Science Journals Connector (OSTI)

......generation by wind turbines (WTs) has...large-scale offshore developments...generation by wind turbines (WTs) has...large-scale offshore developments...UK, most wind turbines (WTs) have...likely that offshore WTs will play......

F. P. A. Coolen; F. Spinato; D. Venkat

2010-10-01T23:59:59.000Z

146

Life cycle assessment: A case study of two wind turbines used in Mexico  

Science Journals Connector (OSTI)

Abstract This paper presents the case study of two wind turbines installed in Mexico which are analyzed using the life cycle assessment (LCA) methodology. Environmental impacts of different fabrication materials and electricity consumption were studied for the main turbine components. The designs of both turbines were examined through the phases of manufacture, construction, and final disposal. Both turbines (turbine A and turbine B) were of 2.0megawatts(MW). Results ascertain that the most intensive environmental impacts come from the nacelle and tower components of both turbines; and that within life cycle phases, turbine A influences the environment less than turbine B, specifically during manufacture and final disposal. This study is valuable for decision makers in the domain of technological product design and marketing; in order to determine which features of the wind turbines can be modified to mitigate environmental impacts, contributing to technological innovation in the domains of sustainability and renewable energies in Mexico.

A.V. Vargas; E. Zenn; U. Oswald; J.M. Islas; L.P. Gereca; F.L. Manzini

2015-01-01T23:59:59.000Z

147

NREL: Wind Research - SWIFT Wind Turbine Testing and Results  

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

SWIFT Wind Turbine Testing and Results SWIFT Wind Turbine Testing and Results The SWIFT wind turbine. Text Version As part of the National Renewable Energy Laboratory and U.S. Department of Energy (NREL/DOE) Independent Testing project, NREL is testing the SWIFT small wind turbine at the National Wind Technology Center (NWTC). The competitive grant was awarded to Cascade Engineering. The SWIFT is a 1-kilowatt (kW), five-bladed with outer ring, horizontal-axis upwind small wind turbine. The turbine's rotor diameter is 2 meters, and its hub height is 13.72 meters. The SWIFT uses a single-phase permanent-magnet generator rated at 1 kW grid connected through an inverter at 240 volts AC. Testing Summary Supporting data and explanations for data provided in this table will be provided in the final reports. Data presented are preliminary and subject

148

How Does a Wind Turbine Work?  

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

Wind turbines operate on a simple principle. This animation shows how energy in the wind turns two or three propeller-like blades around a rotor. The rotor is connected to the main shaft, which...

149

How Does a Wind Turbine Work?  

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

Wind turbines operate on a simple principle. The energy in the wind turns two or three propeller-like blades around a rotor. The rotor is connected to the main shaft, which spins a generator to...

150

Washington University Can the Sound Generated by Modern Wind Turbines  

E-Print Network (OSTI)

Washington University Can the Sound Generated by Modern Wind Turbines Affect the Health of Those turbines haveWind turbines have been getting biggerbeen getting bigger and bigger....and bigger.... Lars Needs Wind turbines are "green" and areWind turbines are "green" and are contributing to our energy

Salt, Alec N.

151

The Political Economy of Wind Power in China  

E-Print Network (OSTI)

Building a national wind turbine industry: experiences fromthe worlds largest manufacturer of wind turbines. 1 Inthe worlds installed wind turbines were erected in China,

Swanson, Ryan Landon

2011-01-01T23:59:59.000Z

152

NREL Innovations Contribute to an Award-Winning Small Wind Turbine (Fact Sheet)  

SciTech Connect

The Skystream 3.7 wind turbine is the result of a decade-long collaboration between the National Renewable Energy Laboratory (NREL) and Southwest Windpower, a commercially successful small wind turbine manufacturer. NREL drew heavily on its research experience to incorporate innovations into the Skystream 3.7, including a unique blade design that makes the wind turbine more efficient and quieter than most.

Not Available

2010-12-01T23:59:59.000Z

153

NREL: Wind Research - Small and Distributed Wind Turbine Research  

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

research is to increase consumer confidence in and the number of certified small wind turbines on the market through certification testing, to improve performance, and to reduce...

154

Analysis and Optimisation of a Novel Wind Turbine .  

E-Print Network (OSTI)

??The technologies of urban wind turbines have been rapidly developed in recent years, but urban wind turbines have not found a wide application due to (more)

Zhang, Xu

2014-01-01T23:59:59.000Z

155

EA-2004: Seneca Nation of Indians Wind Turbine Project, Cattaraugus...  

Office of Environmental Management (EM)

of Indians Wind Turbine Project, Cattaraugus Territory, Chautauqua County, Irving, New York EA-2004: Seneca Nation of Indians Wind Turbine Project, Cattaraugus Territory,...

156

GE, Sandia National Lab Improve Wind Turbines | GE Global Research  

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

GE, Sandia National Lab Discover Pathway to Quieter, More Productive Wind Turbines GE, Sandia National Lab Discover Pathway to Quieter, More Productive Wind Turbines Use of...

157

EA-2004: Seneca Nation of Indians Wind Turbine Project, Cattaraugus...  

Energy Savers (EERE)

EA-2004: Seneca Nation of Indians Wind Turbine Project, Cattaraugus Territory, New York EA-2004: Seneca Nation of Indians Wind Turbine Project, Cattaraugus Territory, New York...

158

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

Energy Savers (EERE)

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

159

Aerodynamic interference between two Darrieus wind turbines  

SciTech Connect

The effect of aerodynamic interference on the performance of two curved bladed Darrieus-type vertical axis wind turbines has been calculated using a vortex/lifting line aerodynamic model. The turbines have a tower-to-tower separation distance of 1.5 turbine diameters, with the line of turbine centers varying with respect to the ambient wind direction. The effects of freestream turbulence were neglected. For the cases examined, the calculations showed that the downwind turbine power decrement (1) was significant only when the line of turbine centers was coincident with the ambient wind direction, (2) increased with increasing tipspeed ratio, and (3) is due more to induced flow angularities downstream than to speed deficits near the downstream turbine.

Schatzle, P.R.; Klimas, P.C.; Spahr, H.R.

1981-04-01T23:59:59.000Z

160

Luther College Wind Turbine | Open Energy Information  

Open Energy Info (EERE)

Luther College Wind Turbine Luther College Wind Turbine Jump to: navigation, search Name Luther College Wind Turbine Facility Luther College Wind Turbine Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Luther College Wind Energy Project LLC Developer Luther College Energy Purchaser Alliant Energy Location Decorah IA Coordinates 43.30919891°, -91.81617737° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.30919891,"lon":-91.81617737,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

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


161

Small Wind Turbine Certifications Signal Maturing Industry  

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

More than a dozen small wind turbine models have received certification to the U.S. industry standard from accredited certification bodies. This progress signals a maturing industry and that the DOE Wind Program is on track to reach its goal of certifying 40 turbine models by 2020.

162

Offshore Wind Turbines: Some Technical Challenges  

E-Print Network (OSTI)

1 Offshore Wind Turbines: Some Technical Challenges Prof. Guy Houlsby FREng Oxford University House engineers concerned with installation of offshore wind turbines. The author is Professor of Civil of foundations for offshore structures. He also has a strong interest in the development of the fundamental

Houlsby, Guy T.

163

NREL: Wind Research - Abundant Renewable Energy's ARE 442 Wind Turbine  

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

Abundant Renewable Energy's ARE 442 Wind Turbine Testing and Results Abundant Renewable Energy's ARE 442 Wind Turbine Testing and Results Get the Adobe Flash Player to see this video. A video of Abundant Renewable Energy's ARE 442 wind turbine. Text Version As part of the National Renewable Energy Laboratory and U.S. Department of Energy (NREL/DOE) Independent Testing project, NREL tested Abundant Renewable Energy's ARE 442 turbine at the National Wind Technology Center (NWTC). The ARE 442 is a 10-kilowatt (kW), three-bladed, horizontal-axis upwind small wind turbine. It has a hub height of 30.9 meters and a rotor diameter of 7.2 meters. The turbine has a single-phase permanent-magnet generator that operates at variable voltages up to 410 volts AC. Testing Summary The summary of the tests is below with the final reports.

164

Lightning protection system for a wind turbine  

DOE Patents (OSTI)

In a wind turbine (104, 500, 704) having a plurality of blades (132, 404, 516, 744) and a blade rotor hub (120, 712), a lightning protection system (100, 504, 700) for conducting lightning strikes to any one of the blades and the region surrounding the blade hub along a path around the blade hub and critical components of the wind turbine, such as the generator (112, 716), gearbox (708) and main turbine bearings (176, 724).

Costin, Daniel P. (Chelsea, VT); Petter, Jeffrey K. (Williston, VT)

2008-05-27T23:59:59.000Z

165

Responses of floating wind turbines to wind and wave excitation  

E-Print Network (OSTI)

The use of wind power has recently emerged as a promising alternative to conventional electricity generation. However, space requirements and public pressure to place unsightly wind turbines out of visual range make it ...

Lee, Kwang Hyun

2005-01-01T23:59:59.000Z

166

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...

167

1Design limits and solutions for very large wind turbines Design limits and solutions for very large wind turbines  

E-Print Network (OSTI)

#12;#12;1Design limits and solutions for very large wind turbines UpWind Design limits and solutions for very large wind turbines A 20 MW turbine is feasible March 2011 Supported by: #12;March 20112 Photo:Nordex #12;3Design limits and solutions for very large wind turbines Contents 1. UpWind: Summary

Leu, Tzong-Shyng "Jeremy"

168

Williams Stone Wind Turbine | Open Energy Information  

Open Energy Info (EERE)

Wind Turbine Wind Turbine Jump to: navigation, search Name Williams Stone Wind Turbine Facility Williams Stone Wind Turbine Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Williams Stone Developer Sustainable Energy Developments Energy Purchaser Williams Stone Location Otis MA Coordinates 42.232526°, -73.070952° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.232526,"lon":-73.070952,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

169

Charlestown Wind Turbine | Open Energy Information  

Open Energy Info (EERE)

Charlestown Wind Turbine Charlestown Wind Turbine Jump to: navigation, search Name Charlestown Wind Turbine Facility Charlestown Wind Turbine Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner MWRA Developer MWRA Energy Purchaser Distributed generation - net metered Location Boston MA Coordinates 42.39094522°, -71.07094288° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.39094522,"lon":-71.07094288,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

170

Nature's Classroom Wind Turbine | Open Energy Information  

Open Energy Info (EERE)

Nature's Classroom Wind Turbine Nature's Classroom Wind Turbine Jump to: navigation, search Name Nature's Classroom Wind Turbine Facility Nature's Classroom Wind Turbine Sector Wind energy Facility Type Small Scale Wind Facility Status In Service Owner Nature's Classroom Energy Purchaser Nature's Classroom Location Charlton MA Coordinates 42.113685°, -72.008475° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.113685,"lon":-72.008475,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

171

Meteorological aspects of siting large wind turbines  

SciTech Connect

This report, which focuses on the meteorological aspects of siting large wind turbines (turbines with a rated output exceeding 100 kW), has four main goals. The first is to outline the elements of a siting strategy that will identify the most favorable wind energy sites in a region and that will provide sufficient wind data to make responsible economic evaluations of the site wind resource possible. The second is to critique and summarize siting techniques that were studied in the Department of Energy (DOE) Wind Energy Program. The third goal is to educate utility technical personnel, engineering consultants, and meteorological consultants (who may have not yet undertaken wind energy consulting) on meteorological phenomena relevant to wind turbine siting in order to enhance dialogues between these groups. The fourth goal is to minimize the chances of failure of early siting programs due to insufficient understanding of wind behavior.

Hiester, T.R.; Pennell, W.T.

1981-01-01T23:59:59.000Z

172

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

Office of Environmental Management (EM)

Proceedings from the Wind Manufacturing Workshop: Achieving 20% Wind Energy in the U.S. by 2030, May 2009 Proceedings from the Wind Manufacturing Workshop: Achieving 20% Wind...

173

EPAct at One Event - Clipper Wind Manufacturing Facility | Department of  

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

EPAct at One Event - Clipper Wind Manufacturing Facility EPAct at One Event - Clipper Wind Manufacturing Facility EPAct at One Event - Clipper Wind Manufacturing Facility August 2, 2006 - 8:37am Addthis Remarks for Energy Secretary Samuel Bodman Thank you, Tom, for the introduction. I enjoyed my tour of your new manufacturing facility this morning, and am very excited about the tremendous strides being made here in the development of wind turbine technology, and its integration into our national economy. I'd also like to thank Senator Grassley for his ardent support for increasing the amount of windpower in the U.S. and especially his leadership on the production tax credit for renewable energy. Congressman Leach and Congressman Nussle have also provided unwavering support to this industry and to this region. Their staffs are represented here and I thank

174

Estimation of Wind Speed in Connection to a Wind Turbine  

E-Print Network (OSTI)

horizontal axis wind power plant with rated power 750 KW. The plant has a three bladed rotor and an automatic is shown in Figure 1 demand Drive train Generator Rotor Wind speed Power demand Grid Power Controller PitchEstimation of Wind Speed in Connection to a Wind Turbine X. Ma #3; , N. K. Poulsen #3; , H. Bindner

175

Influence of refraction on wind turbine noise  

E-Print Network (OSTI)

A semi-empirical method is applied to calculate the time-average sound level of wind turbine noise generation and propagation. Both are affected by wind shear refraction. Under upwind conditions the partially ensonified zone separates the fully ensonified zone (close to the turbine) and the shadow zone (far away from the turbine). Refraction is described in terms of the wind speed linear profile fitted to the power law profile. The rotating blades are treated as a two-dimensional circular source in the vertical plane. Inside the partially ensonified zone the effective A-weighted sound power decreases to zero when the receiver moves from the turbine toward the shadow zone. The presented results would be useful in practical applications to give a quick estimate of the effect of refraction on wind turbine noise.

Makarewicz, Rufin

2013-01-01T23:59:59.000Z

176

Larger Turbines and the Future Cost of Wind Energy (Poster)  

SciTech Connect

The move to larger turbines has been observed in the United States and around the world. Turbine scaling increases energy capture while reducing general project infrastructure costs and landscape impacts, each of which of can reduce the cost of wind energy. However, scaling in the absence of innovation, can increase turbine costs. The ability of turbine designers and manufacturers to continue to scale turbines, while simultaneously reducing costs, is an important factor in long-term viability of the industry. This research seeks to better understand how technology innovation can allow the continued development of larger turbines on taller towers while also achieving lower cost of energy. Modeling incremental technology improvements identified over the past decade demonstrates that cost reductions on the order of 10%, and capacity factor improvements on the order of 5% (for sites with annual mean wind speed of 7.25 m/s at 50m), are achievable for turbines up to 3.5 MW. However, to achieve a 10% cost reduction and a 10% capacity factor improvement for turbines up to 5 MW, additional technology innovations must be developed and implemented.

Lantz, E.; Hand, M.

2011-03-01T23:59:59.000Z

177

Wind Turbine Scaling Enables Projects to Reach New Heights |...  

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

Turbine Scaling Enables Projects to Reach New Heights Wind Turbine Scaling Enables Projects to Reach New Heights August 18, 2014 - 9:42am Addthis Turbines at the National Wind...

178

Automatic Detection of Wind Turbine Clutter for Weather Radars  

Science Journals Connector (OSTI)

Wind turbines cause contamination of weather radar signals that is often detrimental and difficult to distinguish from cloud returns. Because the turbines are always at the same location, it would seem simple to identify where wind turbine ...

Kenta Hood; Sebastin Torres; Robert Palmer

2010-11-01T23:59:59.000Z

179

A low order model for vertical axis wind turbines  

E-Print Network (OSTI)

A new computational model for initial sizing and performance prediction of vertical axis wind turbines

Drela, Mark

180

Wind Turbines and Health A Rapid Review of the Evidence  

E-Print Network (OSTI)

1 Wind Turbines and Health A Rapid Review of the Evidence July 2010 #12;2 Wind Turbines and Health of the evidence from current literature on the issue of wind turbines and potential impacts on human health regarding wind turbines and their potential effect on human health. It is important to note that these views

Firestone, Jeremy

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


181

Doctoral Position Aeroelastic Analysis of Large Wind Turbines  

E-Print Network (OSTI)

Doctoral Position Aeroelastic Analysis of Large Wind Turbines In the research project "Aeroelastic Analysis Horizontal-axis wind turbine and numerical model. of Large Wind Turbines" funded by the Ger- man involving the in-house Finite-Element CFD code XNS to enable the simulation of wind turbines. The ability

182

Modal testing of advanced wind turbine systems  

SciTech Connect

The US Department of Energy (DOE), in conjunction with the US wind industry, is supporting the development of technology for advanced, higher efficiency wind energy conversion systems. Under the Advanced Wind Turbine (AAWT) Program, the DOE, through the National Renewable Energy Laboratory (NREL), will assist US industry in incorporating advanced wind turbine technology into utility-grade wind turbines. As part of the AWT Program, NREL is conducting a range of activities aimed at assisting the wind industry with system design analysis and testing. One major activity is NREL`s Full System Model Testing (FSMT) task. In 1993 and 1994, NREL`s FSMT team conducted model surveys on several wind turbine systems developed by industry, including Atlantic Orient Corporation`s AOC 15/50, R. Lynette and Associates` AWT-26 P1, and Carter Wind Turbines Incorporated`s CWT-300. This paper describes how these model surveys were carried out and how industry and NREL wind researchers used the experimental results to validate their analytical models.

Osgood, R.M. [National Renewable Energy Laboratory, Golden, CO (United States). National Wind Technology Center

1995-09-01T23:59:59.000Z

183

NREL: Wind Research - Gaia-Wind's 11 Kilowatt Wind Turbine Testing and  

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

Gaia-Wind's 11 Kilowatt Wind Turbine Testing and Results Gaia-Wind's 11 Kilowatt Wind Turbine Testing and Results A video of Gaia-Wind's 11-kW wind turbine. Text Version As part of the National Renewable Energy Laboratory and U.S. Department of Energy (NREL/DOE) Independent Testing project, NREL tested Gaia-Wind's 11-kilowatt (kW) small wind turbine at the National Wind Technology Center (NWTC). Gaia-Wind's turbine is a three-phase induction generator that operates at 480 volts. The turbine's downwind rotor has a 13-meter diameter, and its tower is 18 meters tall. The two-bladed, oversized rotor is designed for low to moderate wind speeds. Testing Summary The summary of the tests is below with the final reports. Cumulative Energy Production 6/11/2008: 210; 6/13/2008: 528; 6/16/2008: 716; 6/18/2008: 731; 6/19/2008:

184

Flexible dynamics of floating wind turbines  

E-Print Network (OSTI)

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 ...

Luypaert, Thomas (Thomas J.)

2012-01-01T23:59:59.000Z

185

Intelligent Wind Turbine Program - Energy Innovation Portal  

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

further straining the limits of current design standards. As a result, modern wind turbines, having a design lifespan of 20 years, typically fail 2.6 times per year during...

186

Laser Vibrometry for Wind Turbines Inspection  

Science Journals Connector (OSTI)

We report about a development of a new 1.5 m laser vibrometer system to measure vibrations of rotating blades of wind turbines up to a distance of several hundred meters featuring a...

Ebert, Reinhard; Lutzmann, Peter; Scherer, Clemens; Scherer-Negenborn, Norbert; Ghler, Benjamin; van Putten, F

187

Vertical Axis Wind Turbine Foundation parameter study  

SciTech Connect

The dynamic failure criterion governing the dimensions of prototype Vertical Axis Wind Turbine Foundations is treated as a variable parameter. The resulting change in foundation dimensions and costs is examined.

Lodde, P.F.

1980-07-01T23:59:59.000Z

188

Investigation of Wind Turbine Rotor Concepts for Offshore Wind Farms  

Science Journals Connector (OSTI)

Current plans in offshore wind energy developments call for further reduction of cost of energy. In order to contribute to this goal, several wind turbine rotor concepts have been investigated. Assuming the future offshore wind turbines will operate only in the offshore wind farms, the rotor concepts are not only evaluated for their stand-alone performances and their potential in reducing the loads, but also for their performance in an offshore wind farm. In order to do that, the 10MW reference wind turbine designed in Innwind.EU project is chosen as baseline. Several rotor parameters have been modified and their influences are investigated for offshore wind turbine design purposes. This investigation is carried out as a conceptual parametrical study. All concepts are evaluated numerically with BOT (Blade optimisation tool) software in wind turbine level and with Farmflow software in wind farm level for two wind farm layouts. At the end, all these concepts are compared with each other in terms of their advantages and disadvantages.

zlem Ceyhan; Francesco Grasso

2014-01-01T23:59:59.000Z

189

Passively cooled direct drive wind turbine  

DOE Patents (OSTI)

A wind turbine is provided that passively cools an electrical generator. The wind turbine includes a plurality of fins arranged peripherally around a generator house. Each of the fins being oriented at an angle greater than zero degrees to allow parallel flow of air over the fin. The fin is further tapered to allow a constant portion of the fin to extend beyond the air stream boundary layer. Turbulence initiators on the nose cone further enhance heat transfer at the fins.

Costin, Daniel P. (Chelsea, VT)

2008-03-18T23:59:59.000Z

190

How a Wind Turbine Works | Department of Energy  

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

Works June 20, 2014 - 9:09am Addthis How does a wind turbine work? Previous Next Wind turbines operate on a simple principle. The energy in the wind turns two or three...

191

First wind turbine blade delivered to Pantex | National Nuclear...  

National Nuclear Security Administration (NNSA)

wind turbine blade delivered to Pantex Work crews began to erect the first of five wind turbines that will make up the Pantex Renewable Energy Project (PREP). The first wind...

192

The Inside of a Wind Turbine | Department of Energy  

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

the one shown here-face into the wind while downwind turbines face away. Wind turbines harness the power of the wind and use it to generate electricity. Simply stated, a...

193

Scale Models and Wind Turbines | Department of Energy  

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

Scale Models and Wind Turbines Scale Models and Wind Turbines Below is information about the student activitylesson plan from your search. Grades 5-8, 9-12 Subject Wind Energy...

194

A Study on Vibration Isolation in a Wind Turbine Subjected to Wind and Seismic Loading.  

E-Print Network (OSTI)

??The primary loading on wind turbines is in the lateral direction and is of a stochastic nature, due to wind and seismic forces. As turbines (more)

Van der Woude, Chad

2011-01-01T23:59:59.000Z

195

Probabilistic extreme response analysis of large wind turbines to natural winds.  

E-Print Network (OSTI)

??With increases in size and flexibility of modern wind turbines, especially for offshore applications, an improved understanding and assessment of turbine performance under various wind (more)

Gong, Kuangmin

2014-01-01T23:59:59.000Z

196

NREL Small Wind Turbine Test Project: Mariah Power's Windspire Wind Turbine Test Chronology  

SciTech Connect

This report presents a chronology of tests conducted at NREL's National Wind Technology Center on Mariah Power's Windspire 1.2-kW wind turbine and a letter of response from Mariah Power.

Huskey, A.; Forsyth, T.

2009-06-01T23:59:59.000Z

197

Part of the Climate Change Problem . . . and the Solution? Chinese-Made Wind Power Technology and Opportunities for Dissemination  

E-Print Network (OSTI)

Commercial Scale Wind Turbines in Canada. AprilDevelopmentofChina?sWindTurbine ManufacturingIndustryduties on importingwindturbinecomponents. 13

Lewis, Joanna I.

2005-01-01T23:59:59.000Z

198

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

E-Print Network (OSTI)

response analysis of wind turbine towers including soil-were attached to the wind turbine tower at 7 locations alongload demands on the wind turbine tower structure. Additional

Caudillo, Adrian Felix

2012-01-01T23:59:59.000Z

199

Applied Materials Wind Turbine | Open Energy Information  

Open Energy Info (EERE)

Wind Turbine Wind Turbine Jump to: navigation, search Name Applied Materials Wind Turbine Facility Applied Materials Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Applied Materials Developer Applied Materials Energy Purchaser Applied Materials Location Gloucester MA Coordinates 42.62895426°, -70.65153122° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.62895426,"lon":-70.65153122,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

200

Portsmouth Wind Turbine | Open Energy Information  

Open Energy Info (EERE)

Portsmouth Wind Turbine Portsmouth Wind Turbine Facility Portsmouth Wind Turbine Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Town of Portsmouth Energy Purchaser Town of Portsmouth Location Portsmouth RI Coordinates 41.614216°, -71.25165° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.614216,"lon":-71.25165,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

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


201

Yituo Made Wind Turbine Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Yituo Made Wind Turbine Co Ltd Yituo Made Wind Turbine Co Ltd Jump to: navigation, search Name Yituo-Made Wind Turbine Co. Ltd. Place Luoyang, Henan Province, China Zip 471003 Sector Wind energy Product A joint venture of wind turbine designer and manufacturer established by Yituo Group and Spanish Made Technologies Renovables has gone to bankruptcy procedure recently (2005). Coordinates 24.964109°, 118.70932° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":24.964109,"lon":118.70932,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

202

Assessment of research needs for wind turbine rotor materials technology  

SciTech Connect

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

Not Available

1991-01-01T23:59:59.000Z

203

Jet spoiler arrangement for wind turbine  

DOE Patents (OSTI)

An air jet spoiler arrangement is provided for a Darrieus-type vertical axis wind-powered turbine. Air is drawn into hollow turbine blades through air inlets at the end thereof and is ejected in the form of air jets through small holes or openings provided along the lengths of the blades. The air jets create flow separation at the surfaces of the turbine blades, thereby including stall conditions and reducing the output power. A feedback control unit senses the power output of the turbine and controls the amount of air drawn into the air inlets accordingly.

Cyrus, J.D.; Kadlec, E.G.; Klimas, P.C.

1983-09-15T23:59:59.000Z

204

Vertical axis wind turbine control strategy  

SciTech Connect

Early expensive in automatic operation of the Sandia 17-m vertical axis research wind turbine (VAWT) has demonstrated the need for a systematic study of control algorithms. To this end, a computer model has been developed that uses actual wind time series and turbine performance data to calculate the power produced by the Sandia 17-m VAWT operating in automatic control. The model has been used to investigate the influence of starting algorithms on annual energy production. The results indicate that, depending on turbine and local wind characteristics, a bad choice of a control algorithm can significantly reduce overall energy production. The model can be used to select control algorithms and threshold parameters that maximize long-term energy production. An attempt has been made to generalize these results from local site and turbine characteristics to obtain general guidelines for control algorithm design.

McNerney, G.M.

1981-08-01T23:59:59.000Z

205

Xi an Nordex Wind Turbine Co Ltd aka Xi an Weide Wind Power Equipment...  

Open Energy Info (EERE)

Wind Turbine Co Ltd aka Xi an Weide Wind Power Equipment Co Ltd Jump to: navigation, search Name: Xi'an Nordex Wind Turbine Co Ltd (aka Xi'an Weide Wind Power Equipment Co Ltd)...

206

Middelgrunden Wind Turbine Cooperative | Open Energy Information  

Open Energy Info (EERE)

Middelgrunden Wind Turbine Cooperative Middelgrunden Wind Turbine Cooperative Jump to: navigation, search Name Middelgrunden Wind Turbine Cooperative Place Copenhagen, Denmark Zip 2200 Sector Wind energy Product Copenhagen-based, partnership founded in May 1997 by the Working Group for Wind Turbines on Middelgrunden, with the aim to produce electricity through the establishment and management of wind turbines on the Middelgrunden shoal. Coordinates 55.67631°, 12.569355° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":55.67631,"lon":12.569355,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

207

Ris-PhD-Report Wind Turbines: Unsteady Aerodynamics and  

E-Print Network (OSTI)

Risø-PhD-Report Wind Turbines: Unsteady Aerodynamics and Inflow Noise Brian Riget Broe Risø-PhD-47 Title: Wind Turbines: Unsteady Aerodynamics and Inflow Noise Division: Wind Energy Division Risø-PhD-47(EN) December 2009 Abstract (max. 2000 char.): Aerodynamical noise from wind turbines due

208

Ris-R-1330(EN) Wind Turbine Power Performance  

E-Print Network (OSTI)

Risø-R-1330(EN) Wind Turbine Power Performance Verification in Complex Terrain and Wind Farms/EN 61400-12 Ed 1 standard for wind turbine power performance testing is being revised. The standard on power performance measurements on individual wind turbines. The second one is a power performance

209

Dynamic Simulation of DFIG Wind Turbines on FPGA Boards  

E-Print Network (OSTI)

Dynamic Simulation of DFIG Wind Turbines on FPGA Boards Hao Chen, Student Member, IEEE, Song Sun is a friction coefficient. The wind turbine model is based on the relation between the upstream wind speed V w + 1 where p is the air density; Rw is the wind turbine radius; cp (A, (3) is the performance

Zambreno, Joseph A.

210

Low frequency noise from MW wind turbines --mechanisms of generation  

E-Print Network (OSTI)

Low frequency noise from MW wind turbines -- mechanisms of generation and its modeling Helge MW wind turbines -- mechanisms of generation and its modeling Department: Department of Wind Energy 3.6MW turbine 12 3.2 Noise as function of wind speed 12 3.3 Noise as function of rotor

211

Energy harvesting to power sensing hardware onboard wind turbine blade  

SciTech Connect

Wind turbines are becoming a larger source of renewable energy in the United States. However, most of the designs are geared toward the weather conditions seen in Europe. Also, in the United States, manufacturers have been increasing the length of the turbine blades, often made of composite materials, to maximize power output. As a result of the more severe loading conditions in the United States and the material level flaws in composite structures, blade failure has been a more common occurrence in the U.S. than in Europe. Therefore, it is imperative that a structural health monitoring system be incorporated into the design of the wind turbines in order to monitor flaws before they lead to a catastrophic failure. Due to the rotation of the turbine and issues related to lightning strikes, the best way to implement a structural health monitoring system would be to use a network of wireless sensor nodes. In order to provide power to these sensor nodes, piezoelectric, thermoelectric and photovoltaic energy harvesting techniques are examined on a cross section of a CX-100 wind turbine blade in order to determine the feasibility of powering individual nodes that would compose the sensor network.

Carlson, Clinton P [Los Alamos National Laboratory; Schichting, Alexander D [Los Alamos National Laboratory; Quellette, Scott [Los Alamos National Laboratory; Faringolt, Kevin M [Los Alamos National Laboratory; Park, Gyuhae [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

212

Power control of a wind farm with active stall wind turbines and AC grid connection  

E-Print Network (OSTI)

Power control of a wind farm with active stall wind turbines and AC grid connection Anca D. Hansen1 controller for a wind farm made-up exclusively of active stall wind turbines with AC grid connection wind farm control involves both the control on wind turbine level as well as the central control

213

Portsmouth Abbey School Wind Turbine Wind Farm | Open Energy Information  

Open Energy Info (EERE)

School Wind Turbine Wind Farm School Wind Turbine Wind Farm Jump to: navigation, search Name Portsmouth Abbey School Wind Turbine Wind Farm Facility Portsmouth Abbey School Wind Turbine Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Portsmouth Abbey School Developer Portsmouth Abbey School Energy Purchaser Portsmouth Abbey School Location Portsmouth RI Coordinates 41.599032°, -71.268688° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.599032,"lon":-71.268688,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

214

Harbec Plastic Wind Turbine Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Harbec Plastic Wind Turbine Wind Farm Harbec Plastic Wind Turbine Wind Farm Jump to: navigation, search Name Harbec Plastic Wind Turbine Wind Farm Facility Harbec Plastic Wind Turbine Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Harbeck Plastic Developer Lorax Energy Systems Energy Purchaser Harbeck Plastic Location Rochester NY Coordinates 43.226039°, -77.361776° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.226039,"lon":-77.361776,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

215

2014 Sandia Wind Turbine Blade Workshop  

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

The U.S. Energy Department's Sandia National Laboratories will host its 2014 Sandia Wind Turbine Blade Workshop at the Marriott Pyramid North in Albuquerque, New Mexico. The workshop provides a unique, blade focused collaborative forum that will bring together wind energy leaders from industry, academia, and government. Stay tuned for updates. Information regarding past Wind Workshops can be found at: http://windworkshops.sandia.gov/.

216

Foundations for offshore wind turbines  

Science Journals Connector (OSTI)

...wind farms, although supplying green energy, tend to provoke some objections...wind farms, although supplying 'green energy', tend to provoke some objections...wind farms, although supplying `green energy', tend to provoke some objections...

2003-01-01T23:59:59.000Z

217

SUBSPACE-BASED DETECTION OF FATIGUE DAMAGE ON JACKET SUPPORT STRUCTURES OF OFFSHORE WIND TURBINES  

E-Print Network (OSTI)

SUBSPACE-BASED DETECTION OF FATIGUE DAMAGE ON JACKET SUPPORT STRUCTURES OF OFFSHORE WIND TURBINES damage in real size structural components of offshore wind turbines. KEYWORDS : Damage detection, Offshore wind turbines, Numerical response simulation. INTRODUCTION Offshore wind turbines are exposed

Paris-Sud XI, Université de

218

Microsoft Word - Turbine Manufactures MOU FINAL_5-31-08_.doc...  

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

Turbine Manufactures MOU FINAL5-31-08.doc Microsoft Word - Turbine Manufactures MOU FINAL5-31-08.doc Microsoft Word - Turbine Manufactures MOU FINAL5-31-08.doc More Documents...

219

E-Print Network 3.0 - axis wind turbines Sample Search Results  

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

turbines Search Powered by Explorit Topic List Advanced Search Sample search results for: axis wind turbines...

220

E-Print Network 3.0 - axis wind turbine Sample Search Results  

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

turbine Search Powered by Explorit Topic List Advanced Search Sample search results for: axis wind turbine...

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


221

Sinomatech Wind Power Blade aka Sinoma Science Technology Wind Turbine  

Open Energy Info (EERE)

Sinomatech Wind Power Blade aka Sinoma Science Technology Wind Turbine 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 Wind Turbine Blade Co Ltd) Place Nanjing, Jiangsu Province, China Zip 210012 Sector Wind energy Product Jiangsu-based wind turbine blade manufactuer. Coordinates 32.0485°, 118.778969° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":32.0485,"lon":118.778969,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

222

2/16/2014 Can You Charge Your Mobile With Wind Turbine? -TechTxr http://www.techtxr.com/can-charge-mobile-wind-turbine/ 1/7  

E-Print Network (OSTI)

Turbine? | February 9, 2014 Wind Energy Wind Mill Wind Power Wind Mobile About Wind Power Wind! Mobile Power Dead Battery Wind Mill #12;2/16/2014 Can You Charge Your Mobile With Wind Turbine? - Tech2/16/2014 Can You Charge Your Mobile With Wind Turbine? - TechTxr http://www.techtxr.com/can-charge-mobile-wind

Chiao, Jung-Chih

223

Pioneer Asia Wind Turbines | Open Energy Information  

Open Energy Info (EERE)

Turbines Turbines Jump to: navigation, search Name Pioneer Asia Wind Turbines Place Madurai, Tamil Nadu, India Zip 625 002 Sector Wind energy Product Madurai-based wind energy division of the Pioneer Group. Coordinates 9.92544°, 78.1192° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":9.92544,"lon":78.1192,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

224

Wind Turbine Design Cost and Scaling Model  

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

Wind Turbine Design Cost Wind Turbine Design Cost and Scaling Model L. Fingersh, M. Hand, and A. Laxson Technical Report NREL/TP-500-40566 December 2006 NREL is operated by Midwest Research Institute ● Battelle Contract No. DE-AC36-99-GO10337 Wind Turbine Design Cost and Scaling Model L. Fingersh, M. Hand, and A. Laxson Prepared under Task No. WER6.0703 Technical Report NREL/TP-500-40566 December 2006 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute * Battelle Contract No. DE-AC36-99-GO10337 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

225

Built-Environment Wind Turbine Roadmap  

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

Built-Environment Wind Turbine Built-Environment Wind Turbine Roadmap J. Smith, T. Forsyth, K. Sinclair, and F. Oteri Technical Report NREL/TP-5000-50499 November 2012 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Built-Environment Wind Turbine Roadmap J. Smith, T. Forsyth, K. Sinclair, and F. Oteri Prepared under Task No. WE11250 Technical Report NREL/TP-5000-50499 November 2012 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

226

NORDIC Wind Manufacturing Project Nordic Windpower USA Inc.  

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

2,2011 2,2011 Record of Categorical Exclusion for NORDIC Wind Manufacturing Project Nordic Windpower USA Inc. Description of Proposed Action: The Department of Energy's (DOE's) proposed action is to issue a loan guarantee to Nordic Windpower USA Inc., for the assembly and testing of two-bladed, patented teeter hub technology wind turbines. The initial production will be of 1 MW N 1 000 Nordic wind turbine nacelles. The assembly and testing operations would take place in an existing facility, Super Hangar Bay 12, within the Kansas City International Airport in Kansas City, Missouri. The Super Hangar facility is located adjacent to Interstate 29 on the east side of the airport. Bay 12 was designed for overhauling large aircraft such as the Boeing 747 and includes ample space for Nordic's assembly and testing operations. Project

227

Smart Phone Technologies Reduce Risks to Eagles from Wind Turbines...  

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

Smart Phone Technologies Reduce Risks to Eagles from Wind Turbines Smart Phone Technologies Reduce Risks to Eagles from Wind Turbines January 10, 2013 - 2:12pm Addthis This is an...

228

Distributed Wind Market Report: Small Turbines Lead to Big Growth...  

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

Growth in Exports August 18, 2014 - 12:13pm Addthis 1 of 11 Three 100 kilowatt (kW) wind turbines in Bisaccia, Italy. Last year, U.S. small wind turbines were exported to more than...

229

Multi-hazard Reliability Assessment of Offshore Wind Turbines  

E-Print Network (OSTI)

A probabilistic framework is developed to assess the structural reliability of offshore wind turbines. Probabilistic models are developed to predict the deformation, shear force and bending moment demands on the support structure of wind turbines...

Mardfekri Rastehkenari, Maryam 1981-

2012-12-04T23:59:59.000Z

230

A doubly-fed permanent magnet generator for wind turbines  

E-Print Network (OSTI)

Optimum extraction of energy from a wind turbine requires that turbine speed vary with wind speed. Existing solutions to produce constant-frequency electrical output under windspeed variations are undesirable due to ...

Thomas, Andrew J. (Andrew Joseph), 1981-

2004-01-01T23:59:59.000Z

231

A simulation-based planning system for wind turbine construction  

Science Journals Connector (OSTI)

Wind turbine construction is a challenging undertaking due to the need to lift heavy loads to high locations in conditions of high and variable wind speeds. These conditions create great risks to contractors during the turbine assembly process. This ...

Dina Atef; Hesham Osman; Moheeb Ibrahim; Khaled Nassar

2010-12-01T23:59:59.000Z

232

Understanding Trends in Wind Turbine Prices Over the Past Decade  

E-Print Network (OSTI)

Wind turbines are material-intensive. Each individual tower,and towers and lattice masts, and assume that 100% of the former and 95% of the latter are attributable to wind turbines.

Bolinger, Mark

2012-01-01T23:59:59.000Z

233

Field Examples of Axial Cracked Bearings in Wind Turbine Gearboxes...  

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

Field Examples of Axial Cracked Bearings in Wind Turbine Gearboxes Presented by Paul John Baker of FrontierPro Services at the Wind Turbine Tribology Seminar 2014. 141030 Axial...

234

Long-Term Dynamic Monitoring of an Offshore Wind Turbine  

Science Journals Connector (OSTI)

Future Offshore Wind Turbines will be hardly accessible; therefore, in ... modes of the foundation and tower structures. Wind turbines are complex structures and their dynamics vary ... track changes in the dynam...

Christof Devriendt; Filipe Magalhes

2013-01-01T23:59:59.000Z

235

Suppression of the vibrations of wind turbine towers  

Science Journals Connector (OSTI)

......suppression of the vibrations of wind turbine towers. As a source of renewable and clean energy, wind power is rapidly increasing its...capacity in many countries. Large offshore turbines are subjected to severe weather......

Xiaowei Zhao; George Weiss

2011-09-01T23:59:59.000Z

236

Structural responses and power output of a wind turbine are strongly affected by the wind field acting on the wind turbine. Knowledge about the wind field and its  

E-Print Network (OSTI)

ABSTRACT Structural responses and power output of a wind turbine are strongly affected by the wind affect the power output and structural responses of a wind turbine. Wind field characteristics are conventionally described by time averaged features, such as mean wind speed, turbulence intensity and power

Stanford University

237

Spare Part Logistics and Optimization for Wind Turbines.  

E-Print Network (OSTI)

?? The wind power industry is maturing and the amount of electricity produced by wind turbines in the world is rapidly increasing every year. Service (more)

Lindqvist, Mattias

2010-01-01T23:59:59.000Z

238

Wind Turbine System State Awareness - Energy Innovation Portal  

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

Program are developing a multi-physics modeling approach for the analysis of wind turbines in the presence of realistic wind loading. DescriptionResearchers at the Los...

239

SciTech Connect: Improved Wind Turbine Drivetrain Reliability...  

Office of Scientific and Technical Information (OSTI)

and Renewable Energy Country of Publication: United States Language: English Subject: 17 WIND ENERGY; 97 MATHEMATICS AND COMPUTING NONTORQUE LOADS; WIND TURBINE DRIVETRAIN;...

240

Titan propels GE wind turbine research into new territory | ornl...  

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

Titan propels GE wind turbine research into new territory January 17, 2014 The amount of global electricity supplied by wind, the world's fastest growing energy source, is expected...

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


241

Amplitude modulation of wind turbine noise  

E-Print Network (OSTI)

Due to swish and thump amplitude modulation, the noise of wind turbines cause more annoyance than other environmental noise of the same average level. The wind shear accounts for the thump modulation (van den Berg effect). Making use of the wind speed measurements at the hub height, as well as at the top and the bottom of the rotor disc (Fig.1), the non-standard wind profile is applied. It causes variations in the A-weighted sound pressure level, LpA. The difference between the maximum and minimum of LpA characterizes thump modulation (Fig.2).

Makarewicz, Rufin

2013-01-01T23:59:59.000Z

242

Full-scale modal wind turbine tests: comparing shaker excitation with wind excitation  

Science Journals Connector (OSTI)

The test facilities at the National Wind Technology Center (NWTC) of the National ... control schemes and equipment for reducing loads on wind turbine components. As wind turbines become lighter and more flexible...

Richard Osgood; Gunjit Bir; Heena Mutha

2011-01-01T23:59:59.000Z

243

Ris-R-1352(EN) Models for Wind Turbines  

E-Print Network (OSTI)

Risø-R-1352(EN) Models for Wind Turbines ­ a Collection Andreas Baumgart Gunner C. Larsen, Morten H is to supply new approaches to stability investigations of wind turbines. The author's opinion #12;Contents 1 Preface 5 2 Author's Notes 7 3 Theory of Rods applied to Wind Turbine Blades 9 3

244

Wave Models for Offshore Wind Turbines Puneet Agarwal  

E-Print Network (OSTI)

Wave Models for Offshore Wind Turbines Puneet Agarwal§ and Lance Manuely Department of Civil for estimating loads on the support structure (monopile) of an offshore wind turbine. We use a 5MW utility-scale wind turbine model for the simulations. Using, first, the sim- pler linear irregular wave modeling

Manuel, Lance

245

Detection of aeroacoustic sound sources on aircraft and wind turbines  

E-Print Network (OSTI)

Detection of aeroacoustic sound sources on aircraft and wind turbines Stefan Oerlemans #12;Detection of aeroacoustic sound sources on aircraft and wind turbines S. Oerlemans Thesis University;DETECTION OF AEROACOUSTIC SOUND SOURCES ON AIRCRAFT AND WIND TURBINES PROEFSCHRIFT ter verkrijging van de

Twente, Universiteit

246

Control of Wind Turbines for Power Regulation and  

E-Print Network (OSTI)

Control of Wind Turbines for Power Regulation and Load Reduction Juan Jose Garcia Quirante Kongens regulation and load reduction and their ensemble in a variable-speed wind turbine. The power regulation aspects of mathematical modelling of wind turbines, and especially the control methods suited for power

247

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

E-Print Network (OSTI)

AIAA-2004-1184 1 AN AEROACOUSTIC ANALYSIS OF WIND TURBINES* Philip J. Morris, Lyle N. Long computational aeroacoustic methods that are being applied to predict the noise radiated by wind turbines. Since the wind turbine noise problem is very challenging, only some of the important noise sources and mechanisms

248

RELIABILITY COMPARISON MODELS FOR OFFSHORE WIND TURBINES (OWT)  

E-Print Network (OSTI)

RELIABILITY COMPARISON MODELS FOR OFFSHORE WIND TURBINES (OWT) Yizhou Lu, T. M. Delorm, A. Christou of the reliability of these 5 Types Surrogate failure rate data Onshore wind turbines (OT) 1-1.5MW CONCLUSIONS., Faulstich, S. & van Bussel G. J. W. Reliability & availability of wind turbine electrical & electronic

Bernstein, Joseph B.

249

A Simplified Morphing Blade for Horizontal Axis Wind Turbines  

E-Print Network (OSTI)

A Simplified Morphing Blade for Horizontal Axis Wind Turbines Weijun WANG , St´ephane CARO, Fouad salinas@hotmail.com The aim of designing wind turbine blades is to improve the power capture ability by adjusting the twist of the blade's root and tip. To evaluate the performance of wind turbine blades

Recanati, Catherine

250

Taming Hurricanes With Arrays of Offshore Wind Turbines  

E-Print Network (OSTI)

Taming Hurricanes With Arrays of Offshore Wind Turbines Mark Z. Jacobson Cristina Archer, Willet #12;Representation of a vertically-resolved wind turbine in model Lines are model layers) or 50 m/s (destruction) speed. Can Walls of Offshore Wind Turbines Dissipate Hurricanes? #12;Katrina

Firestone, Jeremy

251

Condition Monitoring of Wind Turbines Based on Amplitude Demodulation  

E-Print Network (OSTI)

Condition Monitoring of Wind Turbines Based on Amplitude Demodulation Yassine Amirat University. In order to make wind turbine reliable and competitive, it is important to reduce the operational-stationary behavior. Index Terms--Wind turbine, Fault Detection, Bearings, Signal Processing, Amplitude Modulation I

Paris-Sud XI, Université de

252

Potential Flow Modelling for Wind Turbines Shane Cline  

E-Print Network (OSTI)

Potential Flow Modelling for Wind Turbines by Shane Cline B.Sc., University of Toledo, 2003 M means, without the permission of the author. #12;ii Potential Flow Modelling for Wind Turbines by Shane potential flow methods are a promising alternative to mainstream wind turbine aerodynamics tools

Victoria, University of

253

Development of Wind Turbines Prototyping Software Under Matlab/Simulink  

E-Print Network (OSTI)

204 1 Development of Wind Turbines Prototyping Software Under Matlab/Simulink® Through present the development of a wind turbine prototyping software under Matlab/Simulink® through and the end of 1999, around 75% of all new grid-connected wind turbines worldwide were installed in Europe [3

Paris-Sud XI, Université de

254

LIGHTNING EXPOSURE OF WIND TURBINES University of Toronto  

E-Print Network (OSTI)

LIGHTNING EXPOSURE OF WIND TURBINES Dale Dolan University of Toronto e-mail: dale@ecf.utoronto.ca Abstract This paper applies the electrogeometric model of lightning exposure to a wind turbine to compute. For a typical 45 m wind turbine, the probability of being struck by a downward negative flash, as predicted

Lehn, Peter W.

255

Disturbance Control of the Hydraulic Brake in a Wind Turbine  

E-Print Network (OSTI)

Disturbance Control of the Hydraulic Brake in a Wind Turbine Frank Jepsen, Anders Søborg brake in a wind turbine. Brake torque is determined by friction coefficient and clamp force; the latter brake is one1 of the two independent brake systems in a wind turbine. As a consequence of the gearing

Yang, Zhenyu

256

SOUND COMPLIANCE MONITORING FOR THE GAMESA WIND TURBINE  

E-Print Network (OSTI)

SOUND COMPLIANCE MONITORING FOR THE GAMESA WIND TURBINE UD - LEWES, DELAWARE January 2011 ` #12;SOUND COMPLIANCE MONITORING FOR THE GAMESA WIND TURBINE AT THE UNIVERSITY OF DELAWARE LEWES, DELAWARE A Gamesa G90 2.0-MW wind turbine operates at the University of Delaware (UD), Lewes campus on a parcel

Firestone, Jeremy

257

Duration Test Report for the Entegrity EW50 Wind Turbine  

SciTech Connect

This report summarizes the results of a duration test that NREL conducted on the Entegrity EW50 wind turbine. This test was conducted in accordance with the International Electrotechnical Commissions' (IEC) standard, Wind Turbine Generator System Part 2: Design requirements for small wind turbines, IEC 61400-2 Ed.2.0, 2006-03.

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

2012-12-01T23:59:59.000Z

258

Mechanisms of amplitude modulation in wind turbine , A. J. Bullmoreb  

E-Print Network (OSTI)

Mechanisms of amplitude modulation in wind turbine noise M. Smitha , A. J. Bullmoreb , M. M. Candb The environmental noise impact of wind turbine generators has to be assessed when planning new installations of installations. These instances cannot be . Figure 1: spectrogram of a sample of wind turbine noise. This paper

Paris-Sud XI, Université de

259

Stochastic Analysis of Wind Turbine Power Curves Edgar Anahua  

E-Print Network (OSTI)

of the wind turbine to its desired power production; and ii) the stochastic force (noise), whichStochastic Analysis of Wind Turbine Power Curves Edgar Anahua Oldenburg 2007 Zur Homepage der Dissertation #12;#12;Stochastic Analysis of Wind Turbine Power Curves Edgar Anahua Von der Fakult¨at f

Peinke, Joachim

260

Quantifying the hurricane risk to offshore wind turbines  

Science Journals Connector (OSTI)

...Quantifying the hurricane risk to offshore wind turbines 10.1073/pnas.1111769109...observed in typhoons, but no offshore wind turbines have yet been built in the...Gulf coast is 460 GW (2). Offshore wind turbines in these areas will be at...

Stephen Rose; Paulina Jaramillo; Mitchell J. Small; Iris Grossmann; Jay Apt

2012-01-01T23:59:59.000Z

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


261

2008 WIND TECHNOLOGIES MARKET REPORT  

E-Print Network (OSTI)

wind turbine manufacturers: Vestas (nacelles, blades, and towersWind turbine transactions differ in the services offered (e.g. , whether towers

Bolinger, Mark

2010-01-01T23:59:59.000Z

262

DOE Research Grant Leads to Gas Turbine Manufacturing Improvements |  

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

Research Grant Leads to Gas Turbine Manufacturing Improvements Research Grant Leads to Gas Turbine Manufacturing Improvements DOE Research Grant Leads to Gas Turbine Manufacturing Improvements August 16, 2011 - 1:00pm Addthis Washington, DC - Research sponsored by the U.S. Department of Energy's Office of Fossil Energy (FE) has led to a new licensing agreement that will improve the performance of state-of-the-art gas turbines, resulting in cleaner, more reliable and affordable energy. The collaborative technology license agreement, penned by Mikro Systems Inc. and Siemens Energy Inc., reflects growth in U.S.-based manufacturing know-how and leadership in cutting-edge technology development and rapid implementation. Gas turbines, which are used to produce electricity for industrial or central power generation applications, consist sequentially of compressor,

263

Energy, emissions and environmental impact analysis of wind turbine using life cycle assessment technique  

Science Journals Connector (OSTI)

Abstract Wind turbine used for electricity generation is known as clean and renewable energy technology. The worldwide increasing trend of wind turbine installation present and future projection addressing the issue of energy required for manufacture and environmental impact due to energy consumption. The life cycle energy and environmental impact of wind turbine has been studied in many literature, but some studies are based on average data, the life cycle stages are incomplete of some study, most of the literature are horizontal axis type and the literature for Asian developing countries are rare. In addition, the life cycle study of vertical axis wind turbine is unusual. Since, the life cycle assessment (LCA) study varied from location to location due to industrial performance, countries energy mix and related issues, a life cycle embodied energy, emissions and environmental impacts analysis were undertaken for two grid connected rooftop wind turbines (vertical axis and horizontal axis) considering the industrial performance, applications and related issues in Thailand. The life cycle assessment was done using SimaPro 7.3.3 software from cradle to grave for base case and for alternative cases. The result showed that, wind turbine installation in Thailand at Chiangmai is reliable to deliver wind energy over the year compared to Phuket and Surat Thani Island. The vertical axis wind turbine is energy and emission intensive per kWh/year energy delivered compared to horizontal axis wind turbine for base case system. The embodied energy and environmental impact could be possible to reduce by more than 60% and 50% respectively using reuse of materials strategy. The embodied energy of vertical axis wind turbine could be possible to reduce by 36% with thermoplastic and 40% with fiberglass plastic turbine instead of aluminum turbine, while the environmental impact reduction more than 15% has been observed. The energy intensity, CO2 emission intensity and energy payback time found to be lower when compared with literature.

Md. Shazib Uddin; S. Kumar

2014-01-01T23:59:59.000Z

264

Henley Middle School Wind Project | Open Energy Information  

Open Energy Info (EERE)

el":"","visitedicon":"" Display map Number of Units 1 Commercial Online Date 2011 Wind Turbine Manufacturer SkyStream Wind for Schools Portal Turbine ID 121062 References Wind...

265

Central High School Wind Project | Open Energy Information  

Open Energy Info (EERE)

el":"","visitedicon":"" Display map Number of Units 1 Commercial Online Date 2012 Wind Turbine Manufacturer SkyStream Wind for Schools Portal Turbine ID 120430 References Wind...

266

Luray High School Wind Project | Open Energy Information  

Open Energy Info (EERE)

el":"","visitedicon":"" Display map Number of Units 1 Commercial Online Date 2013 Wind Turbine Manufacturer SkyStream Wind for Schools Portal Turbine ID 109825 References Wind...

267

Wind turbine reliability :understanding and minimizing wind turbine operation and maintenance costs.  

SciTech Connect

Wind turbine system reliability is a critical factor in the success of a wind energy project. Poor reliability directly affects both the project's revenue stream through increased operation and maintenance (O&M) costs and reduced availability to generate power due to turbine downtime. Indirectly, the acceptance of wind-generated power by the financial and developer communities as a viable enterprise is influenced by the risk associated with the capital equipment reliability; increased risk, or at least the perception of increased risk, is generally accompanied by increased financing fees or interest rates. This paper outlines the issues relevant to wind turbine reliability for wind turbine power generation projects. The first sections describe the current state of the industry, identify the cost elements associated with wind farm O&M and availability and discuss the causes of uncertainty in estimating wind turbine component reliability. The latter sections discuss the means for reducing O&M costs and propose O&M related research and development efforts that could be pursued by the wind energy research community to reduce cost of energy.

Walford, Christopher A. (Global Energy Concepts. Kirkland, WA)

2006-03-01T23:59:59.000Z

268

Building the Basic PVC Wind Turbine  

K-12 Energy Lesson Plans and Activities Web site (EERE)

This plan shows how to make a rugged and inexpensive classroom wind turbine that can be used for lab bench-based blade design experiments. While a few specialized parts are needed (a hub and DC motor), the rest of the components are easily found at most hardware stores.

269

Redesign of a wind turbine hub  

E-Print Network (OSTI)

The current designs of wind turbine hubs contain many faults. The slew ring bearing that connects the blade to the hub takes on a large bending moment that in many cases causes the joints to fail and the blade to break ...

Hunter-Jones, Bridget I

2014-01-01T23:59:59.000Z

270

Maintenance optimisation for wind turbines.  

E-Print Network (OSTI)

??Wind is becoming an increasingly important source of energy for countries that ratify to reduce the emission of greenhouse gases and mitigate the effects of (more)

Andrawus, Jesse A.

2008-01-01T23:59:59.000Z

271

Shenyang Tianxiang Wind Equipments Manufacturing Co Ltd | Open Energy  

Open Energy Info (EERE)

Tianxiang Wind Equipments Manufacturing Co Ltd Tianxiang Wind Equipments Manufacturing Co Ltd Jump to: navigation, search Name Shenyang Tianxiang Wind Equipments Manufacturing Co., Ltd Place Shenyang, Liaoning Province, China Sector Wind energy Product Liaoning Province-based JV and manufacturer of rotor blades, hubs, nacelle covers, and other key components for wind turbines. Coordinates 41.788509°, 123.40612° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.788509,"lon":123.40612,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

272

Miracle Wind Power Components Manufacture Co Ltd | Open Energy...  

Open Energy Info (EERE)

Miracle Wind Power Components Manufacture Co Ltd Jump to: navigation, search Name: Miracle Wind Power Components Manufacture Co Ltd Place: Wuxi, Jiangsu Province, China Sector:...

273

U.S. Offshore Wind Manufacturing and Supply Chain Development...  

Office of Environmental Management (EM)

U.S. Offshore Wind Manufacturing and Supply Chain Development U.S. Offshore Wind Manufacturing and Supply Chain Development This report seeks to provide an organized, analytical...

274

Wind Manufacturing Tax Credit | Department of Energy  

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

Wind Manufacturing Tax Credit Wind Manufacturing Tax Credit Wind Manufacturing Tax Credit < Back Eligibility Commercial Industrial Savings Category Wind Buying & Making Electricity Maximum Rebate No specific per project limitation; 100 million limit for all offshore wind tax credits (may be exceeded if EDA deems appropriate) Program Info Start Date 08/19/2010 State New Jersey Program Type Industry Recruitment/Support Rebate Amount 100% of the qualified capital investment Provider New Jersey Economic Development Authority In August 2010 New Jersey enacted legislation ([http://www.njleg.state.nj.us/2010/Bills/AL10/57_.PDF S.B. 2036]) creating an offshore wind resource requirement within the [http://www.dsireusa.org/incentives/incentive.cfm?Incentive_Code=NJ05R&re... state renewables portfolio standard (RPS)] and tax incentives for certain

275

Wuxi Bamboo Wind Turbine Blade Technology Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Wuxi Bamboo Wind Turbine Blade Technology Co Ltd Wuxi Bamboo Wind Turbine Blade Technology Co Ltd Jump to: navigation, search Name Wuxi Bamboo Wind Turbine Blade Technology Co Ltd Place Wuxi, Jiangsu Province, China Sector Wind energy Product Chinese wind turbine blade manufacturer. Coordinates 31.574011°, 120.288223° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":31.574011,"lon":120.288223,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

276

Small Wind Guidebook/What Size Wind Turbine Do I Need | Open Energy  

Open Energy Info (EERE)

What Size Wind Turbine Do I Need What Size Wind Turbine Do I Need < Small Wind Guidebook Jump to: navigation, search Print PDF WIND ENERGY STAKEHOLDER ENGAGEMENT & OUTREACHSmall Wind Guidebook Home WindTurbine-icon.png Small Wind Guidebook * Introduction * First, How Can I Make My Home More Energy Efficient? * Is Wind Energy Practical for Me? * What Size Wind Turbine Do I Need? * What Are the Basic Parts of a Small Wind Electric System? * What Do Wind Systems Cost? * Where Can I Find Installation and Maintenance Support? * How Much Energy Will My System Generate? * Is There Enough Wind on My Site? * How Do I Choose the Best Site for My Wind Turbine? * Can I Connect My System to the Utility Grid? * Can I Go Off-Grid? * State Information Portal * Glossary of Terms * For More Information What Size Wind Turbine Do I Need?

277

Feasibility study of offshore wind turbine substructures for southwest offshore wind farm project in Korea  

Science Journals Connector (OSTI)

Abstract Korea has huge potential for offshore wind energy and the first Korean offshore wind farm has been initiated off the southwest coast. With increasing water depth, different substructures of the offshore wind turbine, such as the jacket and multipile, are the increasing focus of attention because they appear to be cost-effective. However, these substructures are still in the early stages of development in the offshore wind industry. The aim of the present study was to design a suitable substructure, such as a jacket or multipile, to support a 5MW wind turbine in 33m deep water for the Korean Southwest Offshore Wind Farm. This study also aimed to compare the dynamic responses of different substructures including the monopile, jacket and multipile and evaluate their feasibility. We therefore performed an eigenanalysis and a coupled aero-hydro-servo-elastic simulation under deterministic and stochastic conditions in the environmental conditions in Korea. The results showed that the designed jacket and multipile substructures, together with the modified monopile, were well located at softstiff intervals, where most modern utility-scale wind turbine support structures are designed. The dynamic responses of the different substructures showed that of the three substructures, the performance of the jacket was very good. In addition, considering the simple configuration of the multipile, which results in lower manufacturing cost, this substructure can provide another possible solution for Koreans first offshore wind farm. This study provides knowledge that can be applied for the deployment of large-scale offshore wind turbines in intermediate water depths in Korea.

Wei Shi; Jonghoon Han; Changwan Kim; Daeyong Lee; Hyunkyoung Shin; Hyunchul Park

2015-01-01T23:59:59.000Z

278

MODELING WIND TURBINES IN THE GRIDLAB-D SOFTWARE ENVIRONMENT  

SciTech Connect

In recent years, the rapid expansion of wind power has resulted in a need to more accurately model the effects of wind penetration on the electricity infrastructure. GridLAB-D is a new simulation environment developed for the U.S. Department of Energy (DOE) by the Pacifi c Northwest National Laboratory (PNNL), in cooperation with academic and industrial partners. GridLAB-D was originally written and designed to help integrate end-use smart grid technologies, and it is currently being expanded to include a number of other technologies, including distributed energy resources (DER). The specifi c goal of this project is to create a preliminary wind turbine generator (WTG) model for integration into GridLAB-D. As wind power penetration increases, models are needed to accurately study the effects of increased penetration; this project is a beginning step at examining these effects within the GridLAB-D environment. Aerodynamic, mechanical and electrical power models were designed to simulate the process by which mechanical power is extracted by a wind turbine and converted into electrical energy. The process was modeled using historic atmospheric data, collected over a period of 30 years as the primary energy input. This input was then combined with preliminary models for synchronous and induction generators. Additionally, basic control methods were implemented, using either constant power factor or constant power modes. The model was then compiled into the GridLAB-D simulation environment, and the power outputs were compared against manufacturers data and then a variation of the IEEE 4 node test feeder was used to examine the models behavior. Results showed the designs were suffi cient for a prototype model and provided output power similar to the available manufacturers data. The prototype model is designed as a template for the creation of new modules, with turbine-specifi c parameters to be added by the user.

Fuller, J.C.; Schneider, K.P.

2009-01-01T23:59:59.000Z

279

Identification of airfoil characteristics for optimum wind turbine performance / b  

E-Print Network (OSTI)

combine to determine how much power output is obtained. Oi' specific interest in this study is the influence of airi'oil section characteristics on horizontal axis wind turbine (HAWT) performance. By identifying these characteristics, better selection... characteristics f' or HAWT airfoil design or selection. EFFECT OF AIRFOIL CHARACTERISTICS ON INTEGRATED TURBINE PERFORMANCE Wind Turbine Performance Com uter Pro ram An existing horizontal axis wind turbine (HAWT) performance computer program" was modified f...

Miller, Leonard Scott

1983-01-01T23:59:59.000Z

280

WIND-TUNNEL STUDY ON AERODYNAMIC PERFORMANCE OF SMALL VERTICAL-AXIS WIND TURBINES  

E-Print Network (OSTI)

1 WIND-TUNNEL STUDY ON AERODYNAMIC PERFORMANCE OF SMALL VERTICAL-AXIS WIND TURBINES J. J. Miau*1 were carried out to study the aerodynamic performance of three vertical axis wind turbines (VAWTs. On the other hand, the characteristics of unsteady flow around the helical wind turbine were studied with a hot

Leu, Tzong-Shyng "Jeremy"

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


281

Probabilistic fatigue methodology and wind turbine reliability  

SciTech Connect

Wind turbines subjected to highly irregular loadings due to wind, gravity, and gyroscopic effects are especially vulnerable to fatigue damage. The objective of this study is to develop and illustrate methods for the probabilistic analysis and design of fatigue-sensitive wind turbine components. A computer program (CYCLES) that estimates fatigue reliability of structural and mechanical components has been developed. A FORM/SORM analysis is used to compute failure probabilities and importance factors of the random variables. The limit state equation includes uncertainty in environmental loading, gross structural response, and local fatigue properties. Several techniques are shown to better study fatigue loads data. Common one-parameter models, such as the Rayleigh and exponential models are shown to produce dramatically different estimates of load distributions and fatigue damage. Improved fits may be achieved with the two-parameter Weibull model. High b values require better modeling of relatively large stress ranges; this is effectively done by matching at least two moments (Weibull) and better by matching still higher moments. For this purpose, a new, four-moment {open_quotes}generalized Weibull{close_quotes} model is introduced. Load and resistance factor design (LRFD) methodology for design against fatigue is proposed and demonstrated using data from two horizontal-axis wind turbines. To estimate fatigue damage, wind turbine blade loads have been represented by their first three statistical moments across a range of wind conditions. Based on the moments {mu}{sub 1}{hor_ellipsis}{mu}{sub 3}, new {open_quotes}quadratic Weibull{close_quotes} load distribution models are introduced. The fatigue reliability is found to be notably affected by the choice of load distribution model.

Lange, C.H. [Stanford Univ., CA (United States)

1996-05-01T23:59:59.000Z

282

SAR-BASED WIND CLIMATOLOGY FOR WIND TURBINES Merete Bruun Christiansen(1)  

E-Print Network (OSTI)

of interest. 1. OFFSHORE WIND ENERGY Wind turbines are being installed at offshore locations in severalSAR-BASED WIND CLIMATOLOGY FOR WIND TURBINES Merete Bruun Christiansen(1) , Charlotte Bay Hasager(1 the offshore wind climate of Denmark. A new tool has been built to bridge the gap between ocean wind retrievals

283

Wind turbine reliability : understanding and minimizing wind turbine operation and maintenance costs.  

SciTech Connect

Wind turbine system reliability is a critical factor in the success of a wind energy project. Poor reliability directly affects both the project's revenue stream through increased operation and maintenance (O&M) costs and reduced availability to generate power due to turbine downtime. Indirectly, the acceptance of wind-generated power by the financial and developer communities as a viable enterprise is influenced by the risk associated with the capital equipment reliability; increased risk, or at least the perception of increased risk, is generally accompanied by increased financing fees or interest rates. Cost of energy (COE) is a key project evaluation metric, both in commercial applications and in the U.S. federal wind energy program. To reflect this commercial reality, the wind energy research community has adopted COE as a decision-making and technology evaluation metric. The COE metric accounts for the effects of reliability through levelized replacement cost and unscheduled maintenance cost parameters. However, unlike the other cost contributors, such as initial capital investment and scheduled maintenance and operating expenses, costs associated with component failures are necessarily speculative. They are based on assumptions about the reliability of components that in many cases have not been operated for a complete life cycle. Due to the logistical and practical difficulty of replacing major components in a wind turbine, unanticipated failures (especially serial failures) can have a large impact on the economics of a project. The uncertainty associated with long-term component reliability has direct bearing on the confidence level associated with COE projections. In addition, wind turbine technology is evolving. New materials and designs are being incorporated in contemporary wind turbines with the ultimate goal of reducing weight, controlling loads, and improving energy capture. While the goal of these innovations is reduction in the COE, there is a potential impact on reliability whenever new technologies are introduced. While some of these innovations may ultimately improve reliability, in the short term, the technology risks and the perception of risk will increase. The COE metric used by researchers to evaluate technologies does not address this issue. This paper outlines the issues relevant to wind turbine reliability for wind turbine power generation projects. The first sections describe the current state of the industry, identify the cost elements associated with wind farm O&M and availability and discuss the causes of uncertainty in estimating wind turbine component reliability. The latter sections discuss the means for reducing O&M costs and propose O&M related research and development efforts that could be pursued by the wind energy research community to reduce COE.

Not Available

2004-11-01T23:59:59.000Z

284

STRUCTURAL HEALTH MONITORING OF THE SUPPORT STRUCTURE OF WIND TURBINE USING WIRELESS SENSING SYSTEM  

E-Print Network (OSTI)

structure to resist the complicated environmental loading, especially for the offshore wind turbine. How efficiency of wind turbine, the development of offshore wind farm is in full swing. The wind turbine heavily, especially for the offshore wind turbine. How to manage these wind turbines and monitor the structural safety

Boyer, Edmond

285

NREL Releases RFP for Distributed Wind Turbine Competitiveness Improvement Projects  

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

In support of DOE's efforts to further develop distributed wind technology, NREL's National Wind Technology Center has released a Request for Proposal for the following Distributed Wind Turbine Competitiveness Improvement Projects on the Federal Business

286

Suppression of the vibrations of wind turbine towers  

Science Journals Connector (OSTI)

......renewable and clean energy, wind power is rapidly increasing its...capacity in many countries. Large offshore turbines are subjected to severe...2002) Dynamic modeling of wind farm grid interaction. Wind Eng., 26, 191208. LITTMAN......

Xiaowei Zhao; George Weiss

2011-09-01T23:59:59.000Z

287

Small Wind Guidebook/How Do I Choose the Best Site for My Wind Turbine |  

Open Energy Info (EERE)

Small Wind Guidebook/How Do I Choose the Best Site for My Wind Turbine Small Wind Guidebook/How Do I Choose the Best Site for My Wind Turbine < Small Wind Guidebook Jump to: navigation, search Print PDF WIND ENERGY STAKEHOLDER ENGAGEMENT & OUTREACHSmall Wind Guidebook Home WindTurbine-icon.png Small Wind Guidebook * Introduction * First, How Can I Make My Home More Energy Efficient? * Is Wind Energy Practical for Me? * What Size Wind Turbine Do I Need? * What Are the Basic Parts of a Small Wind Electric System? * What Do Wind Systems Cost? * Where Can I Find Installation and Maintenance Support? * How Much Energy Will My System Generate? * Is There Enough Wind on My Site? * How Do I Choose the Best Site for My Wind Turbine? * Can I Connect My System to the Utility Grid? * Can I Go Off-Grid? * State Information Portal * Glossary of Terms

288

Structural efficiency of a wind turbine blade  

Science Journals Connector (OSTI)

Alternative structural layouts for wind turbine blades are investigated with the aim of improving their design, minimizing weight and reducing the cost of wind energy. New concepts were identified using topology optimization techniques on a 45m wind turbine blade. Additionally, non-dimensional structural shape factors were developed for non-symmetric sections under biaxial bending to evaluate structural concepts in terms of ability to maximize stiffness and minimize stress. The topology optimization evolves a structure which transforms along the length of the blade, changing from a design with spar caps at the maximum thickness and a trailing edge mass, to a design with offset spar caps toward the tip. The shape factors indicate that the trailing edge reinforcement and the offset spar cap topology are both more efficient at maximizing stiffness and minimizing stress. In summary, an alternative structural layout for a wind turbine blade has been found and structural shape factors have been developed, which can quantitatively assess the structural efficiency under asymmetric bending.

Neil Buckney; Alberto Pirrera; Steven D. Green; Paul M. Weaver

2013-01-01T23:59:59.000Z

289

Understanding Wind Turbine Price Trends in the U.S. Over the Past Decade  

E-Print Network (OSTI)

consequent impacts on wind turbine and wind energy pricing.Bloomberg NEF). 2011c. Wind Turbine Price Index, Issue V.Understanding Trends in Wind Turbine Prices Over the Past

Bolinger, Mark

2013-01-01T23:59:59.000Z

290

Understanding Wind Turbine Price Trends in the U.S. Over the Past Decade  

E-Print Network (OSTI)

impacts on wind turbine and wind energy pricing. ReferencesProduction from a V112 Turbine Wind Plant. Prepared forBloomberg NEF). 2011c. Wind Turbine Price Index, Issue V.

Bolinger, Mark

2013-01-01T23:59:59.000Z

291

Offshore Wind Turbines - Estimated Noise from Offshore Wind Turbine, Monhegan Island, Maine: Environmental Effects of Offshore Wind Energy Development  

SciTech Connect

Deep C Wind, a consortium headed by the University of Maine will test the first U.S. offshore wind platforms in 2012. In advance of final siting and permitting of the test turbines off Monhegan Island, residents of the island off Maine require reassurance that the noise levels from the test turbines will not disturb them. Pacific Northwest National Laboratory, at the request of the University of Maine, and with the support of the U.S. Department of Energy Wind Program, modeled the acoustic output of the planned test turbines.

Aker, Pamela M.; Jones, Anthony M.; Copping, Andrea E.

2010-11-23T23:59:59.000Z

292

U.S. Wind Energy Manufacturing and Supply Chain: A Competitiveness Analysis  

SciTech Connect

The goal of the project was to develop a greater understanding of the key factors determining wind energy component manufacturing costs and pricing on a global basis in order to enhance the competitiveness of U.S. manufacturers, and to reduce installed systems cost. Multiple stakeholders including DOE, turbine OEMs, and large component manufactures will all benefit by better understanding the factors determining domestic competitiveness in the emerging offshore and next generation land-based wind industries. Major objectives of this project were to: 1. Carry out global cost and process comparisons for 5MW jacket foundations, blades, towers, and permanent magnet generators; 2. Assess U.S. manufacturers competitiveness and potential for cost reduction; 3. Facilitate informed decision-making on investments in U.S. manufacturing; 4. Develop an industry scorecard representing the readiness of the U.S. manufacturers to produce components for the next generations of wind turbines, nominally 3MW land-based and 5MW offshore; 5. Disseminate results through the GLWN Wind Supply Chain GIS Map, a free website that is the most comprehensive public database of U.S. wind energy suppliers; 6. Identify areas and develop recommendations to DOE on potential R&D areas to target for increasing domestic manufacturing competitiveness, per DOEs Clean Energy Manufacturing Initiative (CEMI). Lists of Deliverables 1. Cost Breakdown Competitive Analyses of four product categories: tower, jacket foundation, blade, and permanent magnet (PM) generator. The cost breakdown for each component includes a complete Bill of Materials with net weights; general process steps for labor; and burden adjusted by each manufacturer for their process categories of SGA (sales general and administrative), engineering, logistics cost to a common U.S. port, and profit. 2. Value Stream Map Competitiveness Analysis: A tool that illustrates both information and material flow from the point of getting a customer order at the manufacturing plant; to the orders being forwarded by the manufacturing plant to the material suppliers; to the material being received at the manufacturing plant and processed through the system; to the final product being shipped to the Customer. 3. Competitiveness Scorecard: GLWN developed a Wind Industry Supply Chain Scorecard that reflects U.S. component manufacturers readiness to supply the next generation wind turbines, 3MW and 5MW, for land-based and offshore applications. 4. Wind Supply Chain Database & Map: Expand the current GLWN GIS Wind Supply Chain Map to include offshore elements. This is an on-line, free access, wind supply chain map that provides a platform for identifying active and emerging suppliers for the land-based and offshore wind industry, including turbine component manufacturers and wind farm construction service suppliers.

Fullenkamp, Patrick H; Holody, Diane S

2014-06-15T23:59:59.000Z

293

The right size matters: Investigating the offshore wind turbine market equilibrium  

Science Journals Connector (OSTI)

Abstract Although early experiences indicate that the maturity of deployed technology might not be sufficient for operating wind farms in large scale far away from shore, the rapid development of offshore wind energy is in full progress. Driven by the demand of customers and the pressure to keep pace with competitors, offshore wind turbine manufacturers continuously develop larger wind turbines instead of improving the present ones which would ensure reliability in harsh offshore environment. Pursuing the logic of larger turbines generating higher energy yield and therefore achieving higher efficiency, this trend is also supported by governmental subsidies under the expectation to bring down the cost of electricity from offshore wind. The aim of this article is to demonstrate that primarily due to the limited wind resource upscaling offshore wind turbines beyond the size of 10MW (megawatt) is not reasonable. Applying the planning methodology of an offshore wind project developer to a case study wind farm in the German North Sea and assessing energy yield, lifetime project profitability and levelized cost of electricity substantiate this thesis. This is highly interesting for all stakeholders in the offshore wind industry and questions current subsidy policies supporting projects for developing turbines up to 20MW.

Nikolaus Ederer

2014-01-01T23:59:59.000Z

294

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

SciTech Connect

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.

Elliott, D.L.

1984-04-01T23:59:59.000Z

295

Wind Scanner: A full-scale Laser Facility for Wind and Turbulence Measurements around large Wind Turbines  

E-Print Network (OSTI)

measurements of the wind fields engulfing today's huge wind turbines. Our aim is to measure in real- time 3D velocity field, ,within the volumes that fully surround the huge wind turbines of today and tomorrow atmospheric flow that surrounds the giant wind turbines. This new knowledge we envision will accelerate

296

Globally competitive variable-speed wind turbines  

SciTech Connect

This paper focuses on the design issues which must be addressed if variable-speed wind turbines are to compete in the global marketplace. The paper examines how component-specific design decisions must be made on a system level if an optimized system is to be the result. The relationships among the blades, the generator and the utility interface are considered in detail, using the conceptual design of a 12 kW variable-speed wind turbine (the AOC 8/12) as a running example. The turbine is based on a direct-drive variable-reluctance generator (VRG), a single- or three-phase utility interface as appropriate, and a three-bladed rotor with fixed pitch. A preliminary turbine specification is provided, along with candidate power-speed curves and annual energy output. This paper documents the continuing development and commercialization of this technology which is being taken from the proof-of-concept stage and is now headed for field testing.

Torrey, D.A. [Rensselaer Polytechnic Institute, Troy, NY (United States); Childs, S.E.; Johnson, B.; Carter, J. [Atlantic Orient Corp., Norwich, VT (United States)

1995-12-31T23:59:59.000Z

297

Utility Scale Wind turbine Demonstration Project  

SciTech Connect

The purpose of the Three Affiliated Tribes proposing to Department of Energy was nothing new to Denmark. National Meteorological Studies have proved that North Dakota has some of the most consistence wind resources in the world. The Three Affiliated Tribes wanted to assess their potential and become knowledgeable to developing this new and upcoming resource now valuable. By the Tribe implementing the Utility-scale Wind Turbine Project on Fort Berthold, the tribe has proven the ability to complete a project, and has already proceeded in a feasibility studies to developing a large-scale wind farm on the reservation due to tribal knowledge learned, public awareness, and growing support of a Nation wanting clean renewable energy. The tribe is working through the various measures and regulations with the want to be self-sufficient, independent, and marketable with 17,000 times the wind energy needed to service Fort Berthold alone.

Terry Fredericks

2006-03-31T23:59:59.000Z

298

Wear Analysis of Wind Turbine Gearbox Bearings  

SciTech Connect

The objective of this effort was to investigate and characterize the nature of surface damage and wear to wind turbine gearbox bearings returned from service in the field. Bearings were supplied for examination by S. Butterfield and J. Johnson of the National Wind Technology Center (NREL), Boulder, Colorado. Studies consisted of visual examination, optical and electron microscopy, dimensional measurements of wear-induced macro-scale and micro-scale features, measurements of macro- and micro-scale hardness, 3D imaging of surface damage, studies of elemental distributions on fracture surfaces, and examinations of polished cross-sections of surfaces under various etched and non-etched conditions.

Blau, Peter Julian [ORNL; Walker, Larry R [ORNL; Xu, Hanbing [ORNL; Parten, Randy J [ORNL; Qu, Jun [ORNL; Geer, Tom [ORNL

2010-04-01T23:59:59.000Z

299

Root region airfoil for wind turbine  

DOE Patents (OSTI)

A thick airfoil is described for the root region of the blade of a wind turbine. The airfoil has a thickness in a range from 24%--26% and a Reynolds number in a range from 1,000,000 to 1,800,000. The airfoil has a maximum lift coefficient of 1.4--1.6 that has minimum sensitivity to roughness effects. 3 Figs.

Tangler, J.L.; Somers, D.M.

1995-05-23T23:59:59.000Z

300

The Federal Advanced Wind Turbine Program  

SciTech Connect

The development of technologically advanced, higher efficiency wind turbines has been identified as a high priority activity by the US wind industry. The Department of Energy's Wind Energy Program has begun a multi-year development program aimed at assisting the wind industry with the design, development, and testing of advanced wind turbine systems that can compete with conventional electric generation for $0.05/kWh at 13 mph sites by the mid-1990s and with fossil-fuel-based generators for $0.04/kWh at 13 mph sites by the year 2000. The development plan consists of four phases: (1) Conceptual Design Studies; (2) Near-Term Product Development; (3) Next Generation Technology Integration and Design, and (4) Next- Generation Technology Development and Testing. The Conceptual Design Studies were begun in late 1990, and are scheduled for completion in the Spring of 1992. Preliminary results from these analyses are very promising and indicate that the goals stated above are technically feasible. This paper includes a brief summary of the Conceptual Design Studies and presents initial plans for the follow-on activities. 3 refs., 4 figs.

Hock, S M; Thresher, R W [National Renewable Energy Lab., Golden, CO (United States); Goldman, P R [USDOE, Washington, DC (United States)

1991-12-01T23:59:59.000Z

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


301

The Federal Advanced Wind Turbine Program  

SciTech Connect

The development of technologically advanced, higher efficiency wind turbines has been identified as a high priority activity by the US wind industry. The Department of Energy`s Wind Energy Program has begun a multi-year development program aimed at assisting the wind industry with the design, development, and testing of advanced wind turbine systems that can compete with conventional electric generation for $0.05/kWh at 13 mph sites by the mid-1990s and with fossil-fuel-based generators for $0.04/kWh at 13 mph sites by the year 2000. The development plan consists of four phases: (1) Conceptual Design Studies; (2) Near-Term Product Development; (3) Next Generation Technology Integration and Design, and (4) Next- Generation Technology Development and Testing. The Conceptual Design Studies were begun in late 1990, and are scheduled for completion in the Spring of 1992. Preliminary results from these analyses are very promising and indicate that the goals stated above are technically feasible. This paper includes a brief summary of the Conceptual Design Studies and presents initial plans for the follow-on activities. 3 refs., 4 figs.

Hock, S.M.; Thresher, R.W. [National Renewable Energy Lab., Golden, CO (United States); Goldman, P.R. [USDOE, Washington, DC (United States)

1991-12-01T23:59:59.000Z

302

The Influence of Turbulence and Vertical Wind Profile in Wind Turbine Power Curve  

Science Journals Connector (OSTI)

To identify the influence of turbulence and vertical wind profile in wind turbine performance, wind speed measurements at different heights have been ... equipment, specifically a pulsed wave one. The wind profil...

A. Honrubia; A. Vigueras-Rodrguez

2012-01-01T23:59:59.000Z

303

Estimated global ocean wind power potential from QuikSCAT observations, accounting for turbine characteristics and siting  

E-Print Network (OSTI)

envisioned floating offshore wind turbines. Finally, global35 ] For the three turbines considered, offshore wind farmsusable wind power is evaluated for modern offshore turbine

Capps, Scott B; Zender, Charles S

2010-01-01T23:59:59.000Z

304

Coupled Dynamic Analysis of Multiple Unit Floating Offshore Wind Turbine  

E-Print Network (OSTI)

MUFOWT analysis tool is able to compute any type of floating platform with various kinds of horizontal axis wind turbines (HAWT). Individual control of each turbine is also available and the different structural properties of tower and blades can...

Bae, Yoon Hyeok

2013-04-23T23:59:59.000Z

305

Wind Program Manufacturing Research Advances Processes and Reduces...  

Energy Savers (EERE)

being installed for a 2-MW wind turbine. Knowing that reducing the overall cost of wind energy begins on the factory floor, the Department of Energy's (DOE's) Wind Program...

306

Siting guidelines for utility application of wind turbines. Final report  

SciTech Connect

Utility-oriented guidelines are described for identifying viable sites for wind turbines. Topics and procedures are also discussed that are important in carrying out a wind turbine siting program. These topics include: a description of the Department of Energy wind resource atlases; procedures for predicting wind turbine performance at potential sites; methods for analyzing wind turbine economics; procedures for estimating installation and maintenance costs; methods for anlayzing the distribution of wind resources over an area; and instrumentation for documenting wind behavior at potential sites. The procedure described is applicable to small and large utilities. Although the procedure was developed as a site-selection tool, it can also be used by a utility who wishes to estimate the potential for wind turbine penetration into its future generation mix.

Pennell, W.T.

1983-01-01T23:59:59.000Z

307

Modelling and analysis of a novel wind turbine structure  

Science Journals Connector (OSTI)

This study introduces a novel wind turbine structure for an urban environment. A computational modelling has been conducted to investigate the effect of the new structure on the flow behaviour of entrance wind through the structure and the feasibility of the new wind turbine working at different wind speeds in an urban area. The wind flow behaviour through a chamber of the wind turbine structure has resulted in an increase of 1.3 times of the wind velocity at the outlet of the wind turbine. This is equivalent to 2.5 times increase of wind energy. The wind tunnel tests were carried out to validate the simulation results. There is a good correlation between the experimental and computational results. It is evident that the presented computational method can predict and evaluate the performance of this new type of shroud structure in an urban environment.

Xu Zhang; Yong K. Chen; Rajnish K. Calay

2013-01-01T23:59:59.000Z

308

Offshore Series Wind Turbine Variable Hub heights & rotor diameters  

E-Print Network (OSTI)

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

Firestone, Jeremy

309

Trailing Edge Noise Model Applied to Wind Turbine Airfoils  

E-Print Network (OSTI)

flows, as well as the acoustic waves, using Computational Fluid Dynamics have become affordable thanksTrailing Edge Noise Model Applied to Wind Turbine Airfoils Franck Bertagnolio Risø-R-1633(EN) Risø Bertagnolio Title: Trailing Edge Noise Model Applied to Wind Turbine Airfoils Department: Wind Energy

310

AIAA-2001-0047 PARAMETRIC MODELS FOR ESTIMATING WIND TURBINE  

E-Print Network (OSTI)

. INTRODUCTION Design constraints for wind turbine structures fall into either extreme load or fatigue categoriesAIAA-2001-0047 1 PARAMETRIC MODELS FOR ESTIMATING WIND TURBINE FATIGUE LOADS FOR DESIGN Lance at Austin, Austin, TX 78712 2 Sandia National Laboratories, Wind Energy Technology Department, Albuquerque

Sweetman, Bert

311

PARAMETRIC MODELS FOR ESTIMATING WIND TURBINE FATIGUE LOADS FOR DESIGN  

E-Print Network (OSTI)

loads. #12;2 INTRODUCTION Design constraints for wind turbine structures fall into either extreme load1 PARAMETRIC MODELS FOR ESTIMATING WIND TURBINE FATIGUE LOADS FOR DESIGN Lance Manuel1 Paul S, TX 78712 2 Sandia National Laboratories, Wind Energy Technology Department, Albuquerque, NM 87185

Sweetman, Bert

312

Voltage grid support of DFIG wind turbines during grid faults Anca D. Hansen1  

E-Print Network (OSTI)

Voltage grid support of DFIG wind turbines during grid faults Anca D. Hansen1 , Gabriele Michalke2) wind turbines address primarily the design of DFIG wind turbine control with special focus on power strategy for DFIG wind turbines, which enhances the fault ride-through capability of DFIG wind turbines

313

Towards greener horizontal-axis wind turbines: analysis of carbon emissions, energy and costs at the early design stage  

Science Journals Connector (OSTI)

Abstract This paper describes the development of a quantitative analysis system as a platform for rapidly estimate energy, costs and carbon emission to facilitate the comparison of different wind turbine concept designs. This system aimed specifically at wind turbine manufacturing processes due to the fact that a large proportion of the environmental, costs and energy impacts would occur at this stage. The proposed method supports an initial assessment of multiple design concepts which allows the selection and development of a greener wind turbine. The developed system enables concept design of commercial wind turbine towers of hub heights between 44 and 135m. The method supports an accurate estimation in regards to the dimension, energy consumed, maximum power output, costs and carbon emission in the early design phases of a wind turbine. As a result of the development, the proposed approach could potentially be used to minimise the carbon footprints of major engineering projects such as wind farms.

Raymond Aso; Wai Ming Cheung

2015-01-01T23:59:59.000Z

314

Nordex Yinchuan Wind Power Equipment Manufacturing Co Ltd | Open Energy  

Open Energy Info (EERE)

Equipment Manufacturing Co Ltd Equipment Manufacturing Co Ltd Jump to: navigation, search Name Nordex (Yinchuan) Wind Power Equipment Manufacturing Co. Ltd Place Yinchuan, Ningxia Autonomous Region, China Sector Wind energy Product Subsidiary of Nordex that manufactures its MW-class wind turbines in Yinchuan, China. Set-up through a JV between Nordex AG, Ningxia Electric Power, & Ningxia Tianjing Electric Energy. Coordinates 38.467899°, 106.262299° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.467899,"lon":106.262299,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

315

Radar-cross-section reduction of wind turbines. part 1.  

SciTech Connect

In recent years, increasing deployment of large wind-turbine farms has become an issue of growing concern for the radar community. The large radar cross section (RCS) presented by wind turbines interferes with radar operation, and the Doppler shift caused by blade rotation causes problems identifying and tracking moving targets. Each new wind-turbine farm installation must be carefully evaluated for potential disruption of radar operation for air defense, air traffic control, weather sensing, and other applications. Several approaches currently exist to minimize conflict between wind-turbine farms and radar installations, including procedural adjustments, radar upgrades, and proper choice of low-impact wind-farm sites, but each has problems with limited effectiveness or prohibitive cost. An alternative approach, heretofore not technically feasible, is to reduce the RCS of wind turbines to the extent that they can be installed near existing radar installations. This report summarizes efforts to reduce wind-turbine RCS, with a particular emphasis on the blades. The report begins with a survey of the wind-turbine RCS-reduction literature to establish a baseline for comparison. The following topics are then addressed: electromagnetic model development and validation, novel material development, integration into wind-turbine fabrication processes, integrated-absorber design, and wind-turbine RCS modeling. Related topics of interest, including alternative mitigation techniques (procedural, at-the-radar, etc.), an introduction to RCS and electromagnetic scattering, and RCS-reduction modeling techniques, can be found in a previous report.

Brock, Billy C.; Loui, Hung; McDonald, Jacob J.; Paquette, Joshua A.; Calkins, David A.; Miller, William K.; Allen, Steven E.; Clem, Paul Gilbert; Patitz, Ward E.

2012-03-05T23:59:59.000Z

316

Ris-R-1111(EN) Ultimate Loading of Wind Turbines  

E-Print Network (OSTI)

-R-1111(EN) 2 Abstract An extreme loading study has been conducted comprising a general wind climate the environmental wind climate. With the trend of persistently growing turbines, the extreme loading seems to become, and extreme wind events. Examples of extreme wind events are extreme mean wind speeds with a recurrence period

317

The Inside of a Wind Turbine | Department of Energy  

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

The Inside of a Wind Turbine The Inside of a Wind Turbine The Inside of a Wind Turbine 1 of 17 Tower: 2 of 17 Tower: Made from tubular steel (shown here), concrete, or steel lattice. Supports the structure of the turbine. Because wind speed increases with height, taller towers enable turbines to capture more energy and generate more electricity. Generator: 3 of 17 Generator: Produces 60-cycle AC electricity; it is usually an off-the-shelf induction generator. High-speed shaft: 4 of 17 High-speed shaft: Drives the generator. Nacelle: 5 of 17 Nacelle: Sits atop the tower and contains the gear box, low- and high-speed shafts, generator, controller, and brake. Some nacelles are large enough for a helicopter to land on. Wind vane: 6 of 17 Wind vane: Measures wind direction and communicates with the yaw drive to orient the

318

Sandia National Laboratories: wind turbines produce rated power  

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

turbines produce rated power Increasing the Scaled Wind Farm Technology Facility's Power Production On April 7, 2014, in Energy, Facilities, News, News & Events, Partnership,...

319

Sandia National Laboratories: Wind-Turbine Blade Materials and...  

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

Demonstration Wind-Turbine Blade Materials and Reliability Progress On May 21, 2014, in Energy, Materials Science, News, News & Events, Partnership, Renewable Energy,...

320

WINDExchange Webinar: Small and Distributed Wind Turbine Update  

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

Save the date for this free webinar presenting an overview of recent news and updates pertaining to small and distributed wind turbines.

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


321

WINDExchange Webinar: Small and Distributed Wind Turbine Update...  

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

an overview of recent news and updates pertaining to small and distributed wind turbines. Bret Barker, U.S. Department of Energy, will present a DOE program overview,...

322

SMART Wind Turbine Rotor: Design and Field Test  

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

Design and field test results from the SMART Rotor project, a wind turbine rotor with integrated trailing-edge flaps designed for active control of the rotor aerodynamics.

323

Sandia National Laboratories: Siting: Wind Turbine/Radar Interference...  

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

and MIT Lincoln Laboratory). The goal is to overcome interference caused by wind turbines on civilian and military radar systems by developing site planning tools,...

324

INTERAGENCY FIELD TEST & EVALUATION OF WIND TURBINE - RADAR INTERFEREN...  

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

the tests and 2) summaries of three field tests designed to measure the impact of wind turbines on current air surveillance radars and the effectiveness of private sector...

325

Wind Turbine Inspection Technology Reaches New Heights | GE Global...  

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

week, we announced our advancement in technology that will make the inspection of wind turbines faster and more reliable for our customers. Currently, an inspector examines the...

326

SMART Wind Turbine Rotor: Data Analysis and Conclusions  

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

Data analysis and conclusions from the SMART Rotor project, a wind turbine rotor with integrated trailing-edge flaps designed for active control of the rotor aerodynamics.

327

Supercomputer Helps Design Wind Turbines | ornl.gov  

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

Supercomputer Helps Design Wind Turbines January 16, 2014 Since 2005, scientists at Oak Ridge National Laboratory have been researching, developing and testing materials in...

328

New Framework Transforms FAST Wind Turbine Modeling Tool (Fact...  

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

for modeling multisegmented mooring quasi-static behaviors of floating offshore wind turbines; and full conversion of FAST into the new modularization framework. Features of...

329

An introduction to the small wind turbine project  

SciTech Connect

Small wind turbines are typically used for the remote or rural areas of the world including: a village in Chile; a cabin dweller in the U.S.; a farmer who wants to water his crop; or a utility company that wants to use distributed generation to help defer building new transmission lines and distribution facilities. Small wind turbines can be used for powering communities, businesses, homes, and miscellaneous equipment to support unattended operation. This paper covers the U.S. Department of Energy/National Renewable Energy Laboratory Small Wind Turbine project, its specifications, its applications, the subcontractors and their small wind turbines concepts. 4 refs., 4 figs.

Forsyth, T.L.

1997-07-01T23:59:59.000Z

330

Load Reduction of Floating Wind Turbines using Tuned Mass Dampers.  

E-Print Network (OSTI)

??Offshore wind turbines have the potential to be an important part of the United States' energy production profile in the coming years. In order to (more)

Stewart, Gordon M

2012-01-01T23:59:59.000Z

331

Pitch and torque control of variable speed wind turbines.  

E-Print Network (OSTI)

??In this thesis the torque, speed and pitch angle control of variable speed wind turbine is investigated. In particular, it concentrates on the extraction of (more)

Kulka, Arkadiusz

2004-01-01T23:59:59.000Z

332

Application of machine learning technique in wind turbine fault diagnosis.  

E-Print Network (OSTI)

??In this study, a machine learning technique called anomaly detection is employed for wind turbine bearing fault detection. Basically, the anomaly detection algorithm is used (more)

Purarjomandlangrudi, Afrooz

2014-01-01T23:59:59.000Z

333

Sandia National Laboratories: wind-turbine blade construction  

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

Doppler Velocimeter EC Top Publications A Comparison of Platform Options for Deep-water Floating Offshore Vertical Axis Wind Turbines: An Initial Study Nonlinear Time-Domain...

334

Dynamic simulation on collision between ship and offshore wind turbine  

Science Journals Connector (OSTI)

By using ABAQUS/Explicit, the dynamic process of an offshore wind turbine(OWT) stricken by a ship of 5000DWT...

Hongyan Ding ???; Qi Zhu ? ?; Puyang Zhang ???

2014-02-01T23:59:59.000Z

335

Optimal Evolutionary Wind Turbine Placement in Wind Farms Considering New Models of Shape, Orography and Wind Speed Simulation  

Science Journals Connector (OSTI)

In this paper we present a novel evolutionary algorithm for optimal positioning of wind turbines in wind farms. We consider a realistic model for the wind farm, which includes orography, shape of the wind farm, s...

B. Saavedra-Moreno; S. Salcedo-Sanz

2011-01-01T23:59:59.000Z

336

Power performance of canted blades for a vertical axis wind turbine  

Science Journals Connector (OSTI)

Small scale vertical axis wind turbines have a number of advantages for deployment in an urban environment but are subject to highly varying thrust and radial aerodynamic forces. Helical blade shapes for vertical axis wind turbines can reduce load fluctuations during turbine operation; however a helix has complicated three-dimensional geometry that can be difficult to manufacture resulting in expensive blades. A new blade configuration based on twisted straight blades that are mounted at an angle to the vertical a cant has been developed and tested in a wind tunnel in a number of different configurations and conditions. They offer the benefits of distributing the fluctuating aerodynamic loads but incorporate a linear axis so that they can be manufactured at a comparable cost to simple straight blades. The power performance data from the tunnel testing show that canted blades have comparable power output to similar straight blades and that aerodynamic fences can be used to improve power performance.

Shawn Armstrong; Stephen Tullis

2011-01-01T23:59:59.000Z

337

Land-Based Wind Turbine Transportation and Logistics Barriers and Their Effects on U.S. Wind Markets (Presentation)  

SciTech Connect

The average size of land based wind turbines installed in the United States has increased dramatically over time. As a result wind turbines are facing new transportation and logistics barriers that limit the size of utility scale land based wind turbines that can be deployed in the United States. Addressing these transportation and logistics barriers will allow for even further increases in U.S. turbine size using technologies under development for offshore markets. These barriers are important because larger taller turbines have been identified as a path to reducing the levelized cost of energy for electricity. Additionally, increases in turbine size enable the development of new low and moderate speed markets in the U.S. In turn, wind industry stakeholder support, market stability, and ultimately domestic content and manufacturing competitiveness are potentially affected. In general there is very little recent literature that characterizes transportation and logistics barriers and their effects on U.S. wind markets and opportunities. Accordingly, the objective of this paper is to report the results of a recent NREL study that identifies the barriers, assesses their impact and provides recommendations for strategies and specific actions.

Cotrell, J.; Stehly, T.; Johnson, J.; Roberts, J.O.; Parker, Z.; Scott, G.; Heimiller, D.

2014-05-01T23:59:59.000Z

338

NREL Identifies Investments for Wind Turbine Drivetrain Technologies (Fact Sheet), NREL Highlights, Research & Development, NREL (National Renewable Energy Laboratory)  

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

examines current U.S. manufacturing and supply examines current U.S. manufacturing and supply chain capabilities for advanced wind turbine drivetrain technologies. Innovative technologies are helping boost the capacity and operating reliability of conventional wind turbine drivetrains. With the proper manufacturing and supply chain capabilities in place, the United States can better develop and deploy these advanced technologies- increasing the competitiveness of the U.S. wind industry and reducing the levelized cost of energy (LCOE). National Renewable Energy Laboratory (NREL) researchers conducted a study for the U.S. Department of Energy to assess the state of the nation's manufacturing and supply chain capabilities for advanced wind turbine drivetrain technologies. The findings helped determine the

339

NREL: Awards and Honors - North Wind 100/20 Wind Turbine  

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

North Wind 100/20 Wind Turbine North Wind 100/20 Wind Turbine Developers: Gerry Nix and Brian Smith, National Renewable Energy Laboratory; Johnathan Lynch, Clint Coleman, Garrett Bywaters, and Rob Roland, Norhtern Power Systems; Dr. David Bubenheim and Michael Flynn, NASA Ames Research Center; and John Rand, National Science Foundation. The North Wind 100/20 Wind Turbine is a state-of-the-art wind turbine that is ideal for extreme cold conditions perfect for remote locations that may be off-grid or local-grid. The numeric designations represent the North Wind's capacity, 100-kilowatts (which is enough energy for 25-50 homes), and 20-meter diameter blades. The size of the North Wind 100/20 is unique, fitting an important market niche between large and small turbines. Large turbines (400-kilowatts and

340

DAMAGE DETECTION METHODS ON WIND TURBINE BLADE TESTING WITH WIRED AND WIRELESS ACCELEROMETER SENSORS  

E-Print Network (OSTI)

DAMAGE DETECTION METHODS ON WIND TURBINE BLADE TESTING WITH WIRED AND WIRELESS ACCELEROMETER for nonstationary blade excitations. KEYWORDS : Structural Health Monitoring, Damage Detection, Wind Turbine, Wireless sensing, Wavelets. INTRODUCTION Detecting damage in wind turbine blades is a very

Paris-Sud XI, Université de

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


341

Remanufacturing: An Alternative for End of Use of Wind Turbines  

Science Journals Connector (OSTI)

The fast expansion of the wind power industry has positioned wind turbines (WTs) as a low environmental impact technology with a promising future. Although the useful life of WTs is relatively long, since 2005...

Katherine Ortegon; Loring F. Nies

2012-01-01T23:59:59.000Z

342

Lessons Learned: Milwaukees Wind Turbine Project  

Office of Energy Efficiency and Renewable Energy (EERE)

U.S. Department of Energy Community and Renewable Energy Success Stories webinar series titled Wind Energy in Urban Environments. This presentation describes a mid-size wind turbine installation near downtown Milwaukee, Wisconsin.

343

Insect attraction to wind turbines: does colour play a role?  

Science Journals Connector (OSTI)

The phenomenon of wildlife mortality at wind turbine installations has been generating increasing concern, both for the continued development of the wind industry and for local ecology. While an...

C. V. Long; J. A. Flint; P. A. Lepper

2011-04-01T23:59:59.000Z

344

Gamesa Installs 2-MW Wind Turbine at NWTC  

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

In October, the Department of Energy (DOE) National Renewable Laboratory (NREL) worked with Gamesa Wind US to complete the installation of Gamesa's G97-2 MW Class IIIA turbine at NREL's National Wind Technology Center.

345

Dynamic analysis of a 5 megawatt offshore floating wind turbine  

E-Print Network (OSTI)

September 2007. 5. "Hywind the Worlds First Full-scaleOffshore/Hywind/Pages/HywindPuttingWindPowerToTheTest. aspx4 Figure 1.3: Hywind concept floating wind turbine [

Harriger, Evan Michael

2011-01-01T23:59:59.000Z

346

SMART Wind Turbine Rotor: Data Analysis and Conclusions  

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

system HP high-pressure (the nominally upwind surface of a HAWT blade) IMU inertial measurement unit inboard toward the root end of a wind turbine blade LE leading edge of wind...

347

Effect of Surface Roughness on Wind Turbine Performance  

E-Print Network (OSTI)

Wind farm operators observe production deficits as machines age. Quantifying deterioration on individual components is difficult, but one potential explanation is accumulation of blade surface roughness. Historically, wind turbine airfoils were...

Ehrmann, Robert Schaefer

2014-06-25T23:59:59.000Z

348

Dynamic characteristics analysis of the offshore wind turbine blades  

Science Journals Connector (OSTI)

The topic of offshore wind energy is attracting more and more attention ... . The blades are the key components of offshore wind turbines, and their dynamic characteristics directly determine the effectiveness of...

Jing Li; Jianyun Chen; Xiaobo Chen

2011-03-01T23:59:59.000Z

349

Lateral and Axial Capacity of Monopiles for Offshore Wind Turbines  

Science Journals Connector (OSTI)

Offshore wind has enormous worldwide potential to generate increasing ... are considered to be viable in supporting larger offshore wind turbines in shallow to medium depth waters. In ... of axial and lateral loa...

Aliasger Haiderali; Ulas Cilingir; Gopal Madabhushi

2013-09-01T23:59:59.000Z

350

Condition Monitoring Benefit for Operation Support of Offshore Wind Turbines  

Science Journals Connector (OSTI)

As more offshore wind parks are commissioned, the focus will inevitably ... case, both short-term risks associated with wind turbine component assemblies, and long-term risks related...

Dr. Sebastian Thns; Dr. David McMillan

2014-01-01T23:59:59.000Z

351

A Fault Tolerant Control Approach to Sustainable Offshore Wind Turbines  

Science Journals Connector (OSTI)

The main challenges for the deployment of wind turbine systems are to maximise the amount of good quality electrical power extracted from wind energy. This must be ensured over a ... to maintain system sustainabi...

Montadher Sami Shaker; Ron J. Patton

2014-01-01T23:59:59.000Z

352

Multi-piece wind turbine rotor blades and wind turbines incorporating same  

DOE Patents (OSTI)

A multisection blade for a wind turbine includes a hub extender having a pitch bearing at one end, a skirt or fairing having a hole therethrough and configured to mount over the hub extender, and an outboard section configured to couple to the pitch bearing.

Moroz; Emilian Mieczyslaw (San Diego, CA) [San Diego, CA

2008-06-03T23:59:59.000Z

353

NREL: News Feature - Giant Wind Turbine Test Takes a Heavyweight  

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

Giant Wind Turbine Test Takes a Heavyweight Giant Wind Turbine Test Takes a Heavyweight May 17, 2010 Photo of Samsung's 90-ton drive train connected to NREL's 2.5-megawatt dynamometer in a high-ceiling metal building. The drive train is a cylindrical shape, but several attachments give it the look of a giant Lego contraption. Enlarge image A coupling of giants: Samsung's 2.5-megawatt wind turbine drive train meets the National Wind Technology Center's 2.5-megawatt dynamometer. Samsung's drive train weighs 90 tons and is the brains behind its 2.5-megawatt wind turbine that can supply electricity to 1,800 homes. Credit: Rob Wallen In a coupling of giants recently, the 2.5-megawatt dynamometer at the U.S. Department of Energy's National Renewable Energy Laboratory blasted 12.6 million inch pounds of torque at Samsung's 185,000-pound wind turbine drive

354

Risk of collision between service vessels and offshore wind turbines  

Science Journals Connector (OSTI)

Offshore wind farms are growing in size and are situated farther and farther away from shore. The demand for service visits to transfer personnel and equipment to the wind turbines is increasing, and safe operation of the vessels is essential. Currently, collisions between service vessels and offshore wind turbines are paid little attention to in the offshore wind energy industry. This paper proposes a risk assessment framework for such collisions and investigates the magnitude of the collision risk and important risk-influencing factors. The paper concludes that collisions between turbines and service vessels even at low speed may cause structural damage to the turbines. There is a need for improved consideration of this kind of collision risk when designing offshore wind turbines and wind farms.

Lijuan Dai; Sren Ehlers; Marvin Rausand; Ingrid Bouwer Utne

2013-01-01T23:59:59.000Z

355

Estimated global ocean wind power potential from QuikSCAT observations, accounting for turbine characteristics and siting  

E-Print Network (OSTI)

estimate of future floating turbine depths. [ 32 ] Theenvisioned floating offshore wind turbines. Finally, global

Capps, Scott B; Zender, Charles S

2010-01-01T23:59:59.000Z

356

Materials/manufacturing element of the Advanced Turbine System Program  

SciTech Connect

One of the supporting elements of the Advanced Turbine Systems (ATS) Program is the materials/manufacturing technologies task. The objective of this element is to address critical materials issues for both industrial and utility gas turbines. DOE Oak Ridge Operations Office (ORO) will manage this element of the program, and a team from DOE-ORO and Oak Ridge National Laboratory is coordinating the planning for the materials/manufacturing effort. This paper describes that planning activity which is in the early stages.

Karnitz, M.A.; Devan, J.H.; Holcomb, R.S.; Ferber, M.K.; Harrison, R.W.

1994-08-01T23:59:59.000Z

357

20% Wind Energy by 2030 - Chapter 3: Manufacturing, Materials...  

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

3: Manufacturing, Materials, and Resources Summary Slides 20% Wind Energy by 2030 - Chapter 3: Manufacturing, Materials, and Resources Summary Slides Summary Slides for Chapter 3:...

358

Assessing the Impacts of Reduced Noise Operations of Wind Turbines on Neighbor Annoyance: A Preliminary Analysis in Vinalhaven, Maine  

E-Print Network (OSTI)

Noise Operations of Wind Turbines on Neighbor Annoyance: ANoise Operations of Wind Turbines on Neighbor Annoyance: A

Hoen, Ben

2010-01-01T23:59:59.000Z

359

Collegiate Wind Competition Turbines go Blade-to-Blade in Wind...  

Office of Environmental Management (EM)

- 5:11pm Addthis This wind tunnel constructed by NREL engineers will test the small wind turbines designed by 10 university teams competing in DOE's Collegiate Wind Competition....

360

Wind Turbine Blade Flow Fields and Prospects for Active Aerodynamic Control: Preprint  

SciTech Connect

This paper describes wind turbine flow fields that can cause adverse aerodynamic loading and can impact active aerodynamic control methodologies currently contemplated for wind turbine applications.

Schreck, S.; Robinson, M.

2007-08-01T23:59:59.000Z

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


361

An investigation of design alternatives for 328-ft (100-m) tall wind turbine towers.  

E-Print Network (OSTI)

??As wind turbines are continued to be placed at higher elevations, the need for taller wind turbine towers becomes necessary. However, there are multiple challenges (more)

Lewin, Thomas James

2010-01-01T23:59:59.000Z

362

Grassfield High School Wind Project | Open Energy Information  

Open Energy Info (EERE)

Label":"","visitedicon":"" Hide Map Number of Units 1 Commercial Online Date 2014 Wind Turbine Manufacturer SkyStream Wind for Schools Portal Turbine ID 120104 Loading map......

363

Clover Hill High School Wind Project | Open Energy Information  

Open Energy Info (EERE)

Label":"","visitedicon":"" Hide Map Number of Units 1 Commercial Online Date 2014 Wind Turbine Manufacturer SkyStream Wind for Schools Portal Turbine ID 121057 Loading map......

364

Overview: Zoning for Small Wind Turbines  

Wind Powering America (EERE)

Overview: Overview: Zoning for Small Wind Turbines Jim Green NREL ASES Small Wind Division Webinar January 17, 2008 2 Zoning Basics * Zoning is one form of land use law * Based on legal principle of "police power:" the power to regulate in order to promote the health, morals, safety, and general welfare of the community * Zoning authority originates from state laws called "zoning enabling legislation" - Standard Zoning Enabling Act, Dept. of Commerce, 1920s * Enabling legislation delegates land use authority to local jurisdictions, "Home Rule" - counties, parishes, boroughs, townships, municipalities, cities, villages, etc. 3 Zoning is Daunting * 3,034 counties (National Association of Counties) * 16,504 townships * 19,429 municipalities (National League of Cities)

365

(Construction of a wind turbine). Final report  

SciTech Connect

A wind powered electrical generator was built by industrial arts students working in electricity, woodworking, and metal technology facilities. The blades were originally aluminum frames covered with sailcloth. These were replaced with hand-carved laminated basswood blades. Original plans called for a bullet and downwind propeller, but this was replaced with an upwind propeller and an aft-mounted tailfin. A V-belt and pulley drive transmits power from the turbine and a motorcycle brake stops the machine during high winds and/or for safe servicing. The original 13 volt, 105 amp alternator was replaced by a 12 volt, 100 amp dc generator. Publicity and dissemination events are listed as well as expenditures. (LEW)

Devine, L.E.

1982-03-22T23:59:59.000Z

366

Barr Engineering Statement of Methodology Rosemount Wind Turbine  

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

Barr Engineering Statement of Methodology Rosemount Wind Turbine Barr Engineering Statement of Methodology Rosemount Wind Turbine Simulations by Truescape Visual Reality, DOE/EA-1791 (May 2010) Barr Engineering Statement of Methodology Rosemount Wind Turbine Simulations by Truescape Visual Reality, DOE/EA-1791 (May 2010) Barr Engineering, Minneapolis engaged Truescape in May 2010 to: 1) Provide a series of TrueViewTM2 "human field of view" survey controlled photo simulations from pre-determined viewpoint locations to assist with the assessment of the potential visibility of a proposed turbine, and 2) Simulate two different height options for the turbine tower, being 80m vs. 100m. Barr Engineering Statement of Methodology Rosemount Wind Turbine Simulations by Truescape Visual Reality, DOE/EA-1791 (May 2010)

367

Barr Engineering Statement of Methodology Rosemount Wind Turbine  

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

Barr Engineering Statement of Methodology Rosemount Wind Turbine Barr Engineering Statement of Methodology Rosemount Wind Turbine Simulations by Truescape Visual Reality, DOE/EA-1791 (May 2010) Barr Engineering Statement of Methodology Rosemount Wind Turbine Simulations by Truescape Visual Reality, DOE/EA-1791 (May 2010) Barr Engineering, Minneapolis engaged Truescape in May 2010 to: 1) Provide a series of TrueViewTM2 "human field of view" survey controlled photo simulations from pre-determined viewpoint locations to assist with the assessment of the potential visibility of a proposed turbine, and 2) Simulate two different height options for the turbine tower, being 80m vs. 100m. Barr Engineering Statement of Methodology Rosemount Wind Turbine Simulations by Truescape Visual Reality, DOE/EA-1791 (May 2010)

368

DOE/NREL Advanced Wind Turbine Development Program  

SciTech Connect

The development of technologically advanced, high-efficiency wind turbines continues to be a high-priority activity of the US wind industry. The National Renewable Energy Laboratory (formerly the Solar Energy Research Institute), sponsored by the US Department of Energy (DOE), has initiated the Advanced Wind Turbine Program to assist the wind industry in the development of a new class of advanced wind turbines. The initial phase of the program focused on developing conceptual designs for near-term and advanced turbines. The goal of the second phase of this program is to use the experience gained over the last decade of turbine design and operation combined with the latest existing design tools to develop a turbine that will produce energy at $0.05 per kilowatt-hour (kWh) in a 5.8-m/s (13-mph) wind site. Three contracts have been awarded, and two more are under negotiation in the second phase. The third phase of the program will use new innovations and state-of-the-art wind turbine design technology to produce a turbine that will generate energy at $0.04/kWh in a 5.8-m/s wind site. Details of the third phase will be announced in early 1993.

Butterfield, C.P.; Smith, B.; Laxson, A.; Thresher, B. [National Renewable Energy Lab., Golden, CO (United States)] [National Renewable Energy Lab., Golden, CO (United States); Goldman, P. [USDOE Assistant Secretary for Conservation and Renewable Energy, Washington, DC (United States). Wind/Hydro/Ocean Technologies Div.] [USDOE Assistant Secretary for Conservation and Renewable Energy, Washington, DC (United States). Wind/Hydro/Ocean Technologies Div.

1993-05-01T23:59:59.000Z

369

Assessing Novel Foundation Options for Offshore Wind Turbines  

E-Print Network (OSTI)

Assessing Novel Foundation Options for Offshore Wind Turbines B.W. Byrne, BE(Hons), BCom, MA, DPhil G.T. Houlsby, MA, DSc, FREng, FICE Oxford University, UK SYNOPSIS Offshore wind farms of these being the foundations for the offshore turbines. We review here the results of a recent research

Byrne, Byron

370

Scour around an offshore wind turbine W.F. Louwersheimer  

E-Print Network (OSTI)

Scour around an offshore wind turbine MSc Thesis W.F. Louwersheimer January, 2007 Delft University of Technology Ballast Nedam Faculty of Civil Engineering Egmond Offshore Energy Section of Hydraulic Engineering #12;Scour around an offshore wind turbine Delft University of Technology Ballast Nedam - Egmond

Langendoen, Koen

371

Electromagnetic torque analysis of a DFIG for wind turbines  

Science Journals Connector (OSTI)

Electromagnetic torque of doubly fed induction generator (DFIG) is a consequence of the rotor and stator supply. The stator voltage has a fixed amount and frequency. The rotor voltage of the DFIG as a part of a wind turbine has a variable amount and ... Keywords: DFIG, electromagnetic torque, renewable energy, wind turbine

Jurica Smajo; Dinko Vukadinovic

2008-05-01T23:59:59.000Z

372

Reinforced Wind Turbine Blades - An Environmental Life Cycle Evaluation  

Science Journals Connector (OSTI)

Methods for producing wind turbines and the foundations for offshore installation are not expected to change much before the year 2025. ... Benchmark LCA data from Ecoinvent for a 2 MW offshore horizontal axis wind turbine was selected with capacity factor of 30% and lifespan of 20 years. ...

Laura Merugula; Vikas Khanna; Bhavik R. Bakshi

2012-08-02T23:59:59.000Z

373

Influence of wind characteristics on turbine performance Ioannis Antoniou (1)  

E-Print Network (OSTI)

(2) , Peder Enevoldsen (2) , Leo Thesbjerg (3) (1): Wind Energy Department, Risø of measuring the power curve is by using the wind speed at hub height. The assumption behind this is that the wind speed is representative of the wind over the whole turbine rotor. While this assumption

374

Can Wind Turbines be Bad for You? Alec N. Salt, Ph.D.  

E-Print Network (OSTI)

Can Wind Turbines be Bad for You? Alec N. Salt, Ph.D. Department of Otolaryngology there happens to be a castle nearby). #12;Wind turbines haveWind turbines have been getting biggerbeen getting MegaWatts(MW) Total Installed Change by year 3% of US Energy Needs Wind turbines are "green" and areWind

Salt, Alec N.

375

Infrasound, the Ear and Wind Turbines Alec N. Salt, Ph.D.  

E-Print Network (OSTI)

Infrasound, the Ear and Wind Turbines Alec N. Salt, Ph.D. Department of Otolaryngology there happens to be a castle nearby). #12;Wind turbines haveWind turbines have been getting biggerbeen getting MegaWatts(MW) Total Installed Change by year 3% of US Energy Needs Wind turbines are "green" and areWind

Salt, Alec N.

376

Wind turbine aerodynamics: analysis and design  

Science Journals Connector (OSTI)

In this paper, the classical work on wind turbine is reviewed, starting from the ground work of Rankine and Froude, then revisiting the minimum energy condition of Betz, and applying modern computing techniques to build codes, based on the vortex model of Goldstein that are both fast and reliable. Such numerical simulations can be used to help analyse and design modern wind turbines in regimes where the flow is attached. Much of the work has been developed under the impulsion of General Electric whose support is gratefully acknowledged. The vortex model has reached a mature state which includes capabilities to model unsteady flows due to yaw, tower interference and earth boundary layer as well as flows past rotors with advanced blade tips that have sweep and/or winglets. When separation occurs on the blades, a higher fidelity model is presented, called the hybrid method, which consists in coupling a Navier-Stokes solver with the vortex model, the Navier-Stokes code solving the near blade flow whereas the vortex model convects the circulation to the far field without dissipation and allows for accurate representation of the induced velocities. Further development of the vortex model includes its coupling with a blade structural model to perform aeroelasticity studies.

Jean-Jacques Chattot

2011-01-01T23:59:59.000Z

377

International Turbine Research Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Turbine Research Wind Farm Turbine Research Wind Farm Jump to: navigation, search Name International Turbine Research Wind Farm Facility International Turbine Research Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Developer International Turbine Research Energy Purchaser Pacific Gas & Electric Co Location Pacheco Pass CA Coordinates 37.0445°, -121.175° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.0445,"lon":-121.175,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

378

Mid-Size Wind Turbines | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit History Facebook icon Twitter icon » Mid-Size Wind Turbines Jump to: navigation, search A Vergnet GEV MP C 275-kW turbine at the Sandywoods Community, Rhode island. Photo from Stefan Dominioni/Vergnet S.A., NREL 26490. The U.S. Department of Energy defines mid-size wind turbines as 101 kilowatts to 1 megawatt.[1] Resources Kwartin, R.; Wolfrum, A.; Granfield, K.; Kagel, A.; Appleton, A. (2008). An Analysis of the Technical and Economic Potential for Mid-Scale Distributed Wind. National Renewable Energy Laboratory. Accessed September 27, 2013. National Renewable Energy Laboratory. Midsize Wind Turbine Research. Accessed September 27, 2013. This webpage discusses efforts to develop and commercialize mid-size wind turbines in the United States. References

379

Failure Modes and Effects Analysis (FMEA) for wind turbines  

Science Journals Connector (OSTI)

The Failure Modes and Effects Analysis (FMEA) method has been used to study the reliability of many different power generation systems. This paper now applies that method to a wind turbine (WT) system using a proprietary software reliability analysis tool. Comparison is made between the quantitative results of an FMEA and reliability field data from real wind turbine systems and their assemblies. These results are discussed to establish relationships which are useful for future wind turbine designs. The main system studied is an existing design 2MW wind turbine with a Doubly Fed Induction Generator (DFIG), which is then compared with a hypothetical wind turbine system using the Brushless Doubly Fed Generator (BDFG) of the same rating. The software reliability analysis tool used for these studies was Relex Reliability Studio 2007 Version 2.

H. Arabian-Hoseynabadi; H. Oraee; P.J. Tavner

2010-01-01T23:59:59.000Z

380

CgWind: A high-order accurate simulation tool for wind turbines and wind farms  

SciTech Connect

CgWind is a high-fidelity large eddy simulation (LES) tool designed to meet the modeling needs of wind turbine and wind park engineers. This tool combines several advanced computational technologies in order to model accurately the complex and dynamic nature of wind energy applications. The composite grid approach provides high-quality structured grids for the efficient implementation of high-order accurate discretizations of the incompressible Navier-Stokes equations. Composite grids also provide a natural mechanism for modeling bodies in relative motion and complex geometry. Advanced algorithms such as matrix-free multigrid, compact discretizations and approximate factorization will allow CgWind to perform highly resolved calculations efficiently on a wide class of computing resources. Also in development are nonlinear LES subgrid-scale models required to simulate the many interacting scales present in large wind turbine applications. This paper outlines our approach, the current status of CgWind and future development plans.

Chand, K K; Henshaw, W D; Lundquist, K A; Singer, M A

2010-02-22T23:59:59.000Z

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


381

NREL: Wind Research - Entegrity Wind Systems's EW50 Turbine Testing and  

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

Entegrity Wind Systems's EW50 Turbine Testing and Results Entegrity Wind Systems's EW50 Turbine Testing and Results Entegrity Wind Systems' EW50 wind turbine. Text Version As part of the National Renewable Energy Laboratory and U.S. Department of Energy (NREL/DOE) Independent Testing project, NREL tested Entegrity Wind Systems' EW50 turbine at the National Wind Technology Center (NWTC). The EW50 is a 50-kilowatt (kW), three-bladed, horizontal-axis downwind small wind turbine. The turbine's rotor diameter is 15 meters, and its hub height is 30.5 meters. It has a three-phase induction generator that operates at 480 volts AC. Testing Summary The summary of the tests is listed below, along with the final reports. Cumulative Energy Production 3/11/2009: 17; 3/12/2009: 17; 3/13/2009: 17; 3/14/2009: 17; 3/15/2009: 17;

382

Energy Report: U.S. Wind Energy Production and Manufacturing...  

Energy Savers (EERE)

seventy percent of the equipment installed at U.S. wind farms last year - including wind turbines and components like towers, blades, gears, and generators - is now from domestic...

383

ERCOT's Dynamic Model of Wind Turbine Generators: Preprint  

SciTech Connect

By the end of 2003, the total installed wind farm capacity in the Electric Reliability Council of Texas (ERCOT) system was approximately 1 gigawatt (GW) and the total in the United States was about 5 GW. As the number of wind turbines installed throughout the United States increases, there is a greater need for dynamic wind turbine generator models that can properly model entire power systems for different types of analysis. This paper describes the ERCOT dynamic models and simulations of a simple network with different types of wind turbine models currently available.

Muljadi, E.; Butterfield, C. P.; Conto, J.; Donoho, K.

2005-08-01T23:59:59.000Z

384

Reports Show Record High U.S. Wind Energy Production and Manufacturing |  

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

Reports Show Record High U.S. Wind Energy Production and Reports Show Record High U.S. Wind Energy Production and Manufacturing Reports Show Record High U.S. Wind Energy Production and Manufacturing August 6, 2013 - 12:00pm Addthis Two men work on the nacelle of a wind turbine. The Energy Department released two new reports today showcasing record growth across the U.S. wind market, supporting an increase in America's share of clean, renewable energy and tens of thousands of jobs nationwide. According to these reports, the United States continues to be one of the world's largest and fastest growing wind markets. In 2012, wind energy became the number one source of new U.S. electricity generation capacity for the first time-representing 43% of all new electric additions and accounting for $25 billion in U.S. investment.

385

Energy Dept. Reports: U.S. Wind Energy Production and Manufacturing...  

Office of Environmental Management (EM)

Technologies Market Report, technical and design innovation allowing for larger wind turbines with longer, lighter blades has steadily improved wind turbine performance and has...

386

City of Medford Wind Turbine | Open Energy Information  

Open Energy Info (EERE)

Medford Wind Turbine Medford Wind Turbine Jump to: navigation, search Name City of Medford Wind Turbine Facility City of Medford Wind Turbine Sector Wind energy Facility Type Small Scale Wind Facility Status In Service Owner City of Medford Developer Sustainable Energy Developments Energy Purchaser City of Medford Location Medford MA Coordinates 42.415768°, -71.107337° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.415768,"lon":-71.107337,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

387

Three D Metals Wind Turbine | Open Energy Information  

Open Energy Info (EERE)

Three D Metals Wind Turbine Three D Metals Wind Turbine Jump to: navigation, search Name Three D Metals Wind Turbine Facility Three D Metals Wind Turbine Sector Wind energy Facility Type Small Scale Wind Facility Status In Service Owner Three D Metals Energy Purchaser Three D Metals Location Valley City OH Coordinates 41.248155°, -81.883079° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.248155,"lon":-81.883079,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

388

NREL: News Feature - New Test Facility to Improve Wind Turbines  

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

Test Facility to Improve Wind Turbines Test Facility to Improve Wind Turbines December 26, 2013 Two men stand in front of the test equipment in the dynamometer facility discussing work being done. Behind them are two large blue machines that make up the dynamometer test apparatus. A white wind turbine nacelle system is attached to these devices to their left. Enlarge image NREL engineer Scott Lambert (left) and Project Manager Mark McDade discuss calibrations being done on the new dynamometer at the 5-MW Dynamometer Test Facility at NREL's National Wind Technology Center (NWTC). Credit: Dennis Schroeder Premature failures of mechanical systems have a significant impact on the cost of wind turbine operations and thus the total cost of wind energy. Recently, the Energy Department's National Renewable Energy Laboratory

389

Will 10 MW Wind Turbines Bring Down the Operation and Maintenance Cost of Offshore Wind Farms?  

Science Journals Connector (OSTI)

Abstract Larger wind turbines are believed to be advantageous from an investment and installation perspective, since costs for installation and inner cabling are dependent mainly on the number of wind turbines and not their size. Analogously, scaling up the turbines may also be argued to be advantageous from an operation and maintenance (O&M) perspective. For a given total power production of the wind farm, larger wind turbines give a smaller number of individual machines that needs to be maintained and could therefore give smaller O&M costs. However, the O&M costs are directly dependent on how failure rates, spare part costs, and time needed by technicians to perform each maintenance task and will develop for larger wind turbines. A simulation study is carried out with a discrete-event simulation model for the operational phase of an offshore wind farm, comparing the O&M costs of a wind farm consisting of 5 MW turbines with a wind farm consisting of 10 MW turbines. Simulation results confirm that O&M costs decrease when replacing two 5 MW turbines by one 10 MW turbine, if the total production capacity and all other parameters are kept equal. However, whether larger wind turbines can contribute to a reduction of cost of energy from an O&M perspective is first and foremost dependent on how the failure rates and maintenance durations for such wind turbines will develop compared to 5 MW wind turbines. Based on the results of this analysis, it is concluded that higher failure rates and maintenance durations rapidly are counterbalancing the benefits of larger wind turbines.

Matthias Hofmann; Iver Bakken Sperstad

2014-01-01T23:59:59.000Z

390

Turbine Inflow Characterization at the National Wind Technology Center  

SciTech Connect

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 show 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.

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

2012-01-01T23:59:59.000Z

391

The EPRI/DOE Utility Wind Turbine Performance Verification Program  

SciTech Connect

In 1992, the Electric Power Research Institute (EPRI) and the US Department of Energy (DOE) initiated the Utility Wind Turbine Performance Verification Program (TVP). This paper provides an overview of the TVP, its purpose and goals, and the participating utility projects. Improved technology has significantly reduced the cost of energy from wind turbines since the early 1980s. In 1992, turbines were producing electricity for about $0.07--$0.09/kilowatt-hour (kWh) (at 7 m/s [16 mph sites]), compared with more than $0.30/kWh in 1980. Further technology improvements were expected to lower the cost of energy from wind turbines to $0.05/kWh. More than 17,000 wind turbines, totaling more than 1,500 MW capacity, were installed in the US, primarily in California and Hawaii. The better wind plants had availabilities above 95%, capacity factors exceeding 30%, and operation and maintenance costs of $0.01/kWh. However, despite improving technology, EPRI and DOE recognized that utility use of wind turbines was still largely limited to turbines installed in California and Hawaii during the 1980s. Wind resource assessments showed that other regions of the US, particularly the Midwest, had abundant wind resources. EPRI and DOE sought to provide a bridge from utility-grade turbine development programs under way to commercial purchases of the wind turbines. The TVP was developed to allow utilities to build and operate enough candidate turbines to gain statistically significant operating and maintenance data.

Calvert, S.; Goldman, P. [Department of Energy, Washington, DC (United States); DeMeo, E.; McGowin, C. [Electric Power Research Inst., Palo Alto, CA (United States); Smith, B.; Tromly, K. [National Renewable Energy Lab., Golden, CO (United States)

1997-01-01T23:59:59.000Z

392

Operating wind turbines in strong wind conditions by using feedforward-feedback control  

Science Journals Connector (OSTI)

Due to the increasing penetration of wind energy into power systems, it becomes critical to reduce the impact of wind energy on the stability and reliability of the overall power system. In precedent works, Shen and his co-workers developed a re-designed operation schema to run wind turbines in strong wind conditions based on optimization method and standard PI feedback control, which can prevent the typical shutdowns of wind turbines when reaching the cut-out wind speed. In this paper, a new control strategy combing the standard PI feedback control with feedforward controls using the optimization results is investigated for the operation of variable-speed pitch-regulated wind turbines in strong wind conditions. It is shown that the developed control strategy is capable of smoothening the power output of wind turbine and avoiding its sudden showdown at high wind speeds without worsening the loads on rotor and blades.

Ju Feng; Wen Zhong Sheng

2014-01-01T23:59:59.000Z

393

Economic Development Impacts in Colorado from Four Vestas Manufacturing Facilities, Wind Powering America Fact Sheet Series  

SciTech Connect

This case study summarizes the economic development benefits to Colorado from four Vestas manufacturing facilities: one in Windsor, two in Brighton, and one in Pueblo (which is planned to be the world's largest tower-manufacturing facility). In the midst of an economic slowdown during which numerous U.S. manufacturers have closed their doors, wind energy component manufacturing is one U.S. industry that has experienced unprecedented growth during the past few years. As demand for wind power in the United States has increased and transportation costs have increased around the world, states have seen a significant increase in the number of manufacturers that produce wind turbine components in the United States. Vestas' Colorado operations will bring approximately $700 million in capital investment and nearly 2,500 jobs to the state.

Not Available

2009-04-01T23:59:59.000Z

394

NREL: Innovation Impact - Wind  

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

Manufacturing Manufacturing Energy Systems Integration Energy Systems Integration Wind turbines must withstand powerful aerodynamic forces unlike any other propeller-drive...

395

Wind turbine aeroacoustic noise and noise mitigation strategies.  

Science Journals Connector (OSTI)

Wind turbines are becoming an important piece of the solution to low?carbon power production. However as more turbines are installed near population centers the environmental impacts associated with these machines such as noise are also becoming more obvious. Aeroacousticnoise is generally thought to be the greatest source of acoustical noise in wind turbine systems. This study will present measurement results collected at the National Wind Technology Center on an operating wind turbine that characterize the total received acoustic field surrounding the turbine. Designs and preliminary measurements of trailing edge modifications to the outboard airfoil sections will be discussed as a means of partial noise mitigation. In addition future aeroacousticnoise treatments and measurement plans will be mentioned.

Michael Asheim; Paul Papas; Patrick Moriarty; Jon Collis

2010-01-01T23:59:59.000Z

396

PHYSICAL REVIEW E 88, 042146 (2013) Uncovering wind turbine properties through two-dimensional stochastic modeling of wind dynamics  

E-Print Network (OSTI)

PHYSICAL REVIEW E 88, 042146 (2013) Uncovering wind turbine properties through two, such as the rated speed of the wind turbine or the descriptive wind speed statistics, can be related to the equations describing the evolution of power production and wind speed at single wind turbines. DOI: 10

Peinke, Joachim

397

A simple method of estimating wind turbine blade fatigue at potential wind turbine sites  

SciTech Connect

This paper presents a technique of estimating blade fatigue damage at potential wind turbine sites. The cornerstone of this technique is a simple model for the blade`s root flap bending moment. The model requires as input a simple set of wind measurements which may be obtained as part of a routine site characterization study. By using the model to simulate a time series of the root flap bending moment, fatigue damage rates may be estimated. The technique is evaluated by comparing these estimates with damage estimates derived from actual bending moment data; the agreement between the two is quite good. The simple connection between wind measurements and fatigue provided by the model now allows one to readily discriminate between damaging and more benign wind environments.

Barnard, J.C.; Wendell, L.L.

1995-06-01T23:59:59.000Z

398

EA-1792: University of Maine's Deepwater Offshore Floating Wind Turbine  

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

EA-1792: University of Maine's Deepwater Offshore Floating Wind EA-1792: University of Maine's Deepwater Offshore Floating Wind Turbine Testing and Demonstration Project, Gulf of Maine EA-1792: University of Maine's Deepwater Offshore Floating Wind Turbine Testing and Demonstration Project, Gulf of Maine Summary This EA evaluates the environmental impacts of a proposal to support research on floating offshore wind turbine platforms. This project would support the mission, vision, and goals of DOE's Office of Energy Efficiency and Renewable Energy Wind and Water Power Program to improve performance, lower costs, and accelerate deployment of innovative wind power technologies. Development of offshore wind energy technologies would help the nation reduce its greenhouse gas emissions, diversify its energy supply, provide cost-competitive electricity to key coastal regions, and

399

Analysis of Temporal and Spatial Characteristics on Output of Wind Farms with Doubly Fed Induction Generator Wind Turbines  

Science Journals Connector (OSTI)

Due to the large number of wind turbines and covering too large area in a large wind farm, wake effects among wind turbines and wind speed time delays will have a greater impact of wind farms models. Taking wind farms with doubly fed induction generator(DFIG) ... Keywords: wind farm, modeling, temporal and spatial characteristics, DFIG, output characteristics

Shupo Bu; Xunwen Su

2012-12-01T23:59:59.000Z

400

Liberty Turbine Test Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Turbine Test Wind Farm Turbine Test Wind Farm Jump to: navigation, search Name Liberty Turbine Test Wind Farm Facility Liberty Turbine Test Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Developer Clipper Windpower Energy Purchaser Platte River Power Authority Location Near Medicine Bow WY Coordinates 41.96251°, -106.415918° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.96251,"lon":-106.415918,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

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


401

St h ti d i l i fStochastic dynamic analysis of offshore wind turbines  

E-Print Network (OSTI)

1 St h ti d i l i fStochastic dynamic analysis of offshore wind turbines ­ with emphasis on fatigue analysis of offshore bottom-fixed wind turbines · Modelling and dynamic analysis of floating wind turbines ­ Stochastic dynamic analysis of offshore wind turbines; mooring system for wave energy converters · 2010 8

Nørvåg, Kjetil

402

A High-Order Sliding Mode Observer for Sensorless Control ofDFIG-Based Wind Turbines  

E-Print Network (OSTI)

A High-Order Sliding Mode Observer for Sensorless Control ofDFIG-Based Wind Turbines Mohamed control of a doubly-fed induction generator (DFIG) based wind turbine. The sensorless control scheme (generator and turbine). Simulations using the wind turbine simulator FAST on a 1.5- MW three-blade wind

Boyer, Edmond

403

SHORT TERM PREDICTIONS FOR THE POWER OUTPUT OF ENSEMBLES OF WIND TURBINES AND PV-GENERATORS  

E-Print Network (OSTI)

SHORT TERM PREDICTIONS FOR THE POWER OUTPUT OF ENSEMBLES OF WIND TURBINES AND PV-GENERATORS Hans. For the conventional power park, the power production of the wind turbines presents a fluctuating 'negative load PRODUCTION OF WIND TURBINES For the forecast of the power production of wind turbines two approaches may

Heinemann, Detlev

404

MODAL PARAMETER ESTIMATION FOR OPERATIONAL WIND TURBINES Emilio Di Lorenzo1, 2  

E-Print Network (OSTI)

MODAL PARAMETER ESTIMATION FOR OPERATIONAL WIND TURBINES Emilio Di Lorenzo1, 2 , Simone Manzato1 Claudio 21, 80125 Naples, Italy emilio.dilorenzo@lmsintl.com ABSTRACT Wind turbines are time. This assumption holds in the case of parked wind turbines, but not in the case of operating wind turbines

Boyer, Edmond

405

58:164 Fundamentals of Wind Turbines (ME:4164:0001)  

E-Print Network (OSTI)

58:164 ­ Fundamentals of Wind Turbines (ME:4164:0001) Syllabus P. Barry Butler 111 Jessup Hall The University of Iowa Iowa City, IA January, 2012 #12;2 Spring 2012 58:164 ­ Fundamentals of Wind Turbines mechanics and mechanical systems to wind turbine engineering. Fundamentals of horizontal-axis wind turbines

Kusiak, Andrew

406

The Potential Health Impact of Wind Turbines Chief Medical Officer of Health (CMOH) Report  

E-Print Network (OSTI)

The Potential Health Impact of Wind Turbines Chief Medical Officer of Health (CMOH) Report May 2010) of Ontario in response to public health concerns about wind turbines, particularly related to noise. Assisted by wind turbines. The review concludes that while some people living near wind turbines report symptoms

Firestone, Jeremy

407

Analysis and Flight Test Validation of High Performance AirborneWind Turbines  

Science Journals Connector (OSTI)

Makani Power has developed an autonomous airborne wind turbine prototype incorporating a rigid wing with onboard...

Damon Vander Lind

2013-01-01T23:59:59.000Z

408

www.cesos.ntnu.no Author Centre for Ships and Ocean Structures Offshore Wind Turbine Operation  

E-Print Network (OSTI)

1 www.cesos.ntnu.no Author ­ Centre for Ships and Ocean Structures Offshore Wind Turbine Operation icing for offshore Wind Turbines ? · Wherever there is sea icing ! · Temperature bellow zero degree Structures Outline · Introduction · Wind Turbine Operational Conditions · Wind Turbine Operation under

Nørvåg, Kjetil

409

Wind Turbine Pitch Angle Controllers for Grid Frequency Stabilisation  

E-Print Network (OSTI)

Laboratory Wind Energy Department P.O. Box 49 DK-4000 Roskilde, Denmark clemens.jauch@risoe.dk Abstract in Norway [4]. For the purpose of this research work the power system model has been extended with a windWind Turbine Pitch Angle Controllers for Grid Frequency Stabilisation Clemens Jauch Risø National

410

Status of Power Generation by Domestic Scale Wind Turbines in Australia  

Science Journals Connector (OSTI)

The world's fossil fuel energy resources are diminishing at a faster rate and most importantly the liquid fossil fuel is expected to be finished by 2060s. Moreover, the fossil fuel is directly related to air pollution, land and water degradation. The danger of climate change due to global warming caused by greenhouse gas emissions compels the policy makers, scientists and researchers globally to explore power generation from renewable sources such as wind. Despite significant progresses have been made in power generation using large scale wind turbines recently, domestic scale wind turbines that have immense potentials for standalone power generation are not explored and adequately researched. Therefore, the primary objective of this study is to review and analyse the potentials for power generation by domestic scale wind turbines for the residential and semi-commercial applications. The study reviews the current status of wind characteristics in built-up areas, economic feasibility, aerodynamic and technological limits, local government planning requirement, local and foreign small scale wind turbine manufacturers.

Firoz Alam; Abdulkadir Ali; Iftekhar Khan; Saleh Mobin

2012-01-01T23:59:59.000Z

411

Design of a wind turbine-generator system considering the conformability to wind velocity fluctuations  

SciTech Connect

The conformability of the rated power output of the wind turbine-generator system and of the wind turbine type to wind velocity fluctuations are investigated with a simulation model. The authors examine three types of wind turbines: the Darrieus-Savonius hybrid, the Darrieus proper and the Propeller. These systems are mainly operated at a constant tip speed ratio, which refers to a maximum power coefficient points. As a computed result of the net extracting power, the Darrieus turbine proper has little conformability to wind velocity fluctuations because of its output characteristics. As for the other turbines, large-scale systems do not always have an advantage over small-scale systems as the effect of its dynamic characteristics. Furthermore, it is confirmed that the net extracting power of the Propeller turbine, under wind direction fluctuation, is much reduced when compared with the hybrid wind turbine. Thus, the authors conclude that the appropriate rated power output of the system exists with relation to the wind turbine type for each wind condition.

Wakui, Tetsuya; Hashizume, Takumi; Outa, Eisuke

1999-07-01T23:59:59.000Z

412

Aeroelastic stability analysis of a Darrieus wind turbine  

SciTech Connect

An aeroelastic stability analysis has been developed for predicting flutter instabilities on vertical axis wind turbines. The analytical model and mathematical formulation of the problem are described as well as the physical mechanism that creates flutter in Darrieus turbines. Theoretical results are compared with measured experimental data from flutter tests of the Sandia 2 Meter turbine. Based on this comparison, the analysis appears to be an adequate design evaluation tool.

Popelka, D.

1982-02-01T23:59:59.000Z

413

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

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

Wind Tower Systems to develop the Wind Tower Systems to develop the Space Frame tower, a new concept for wind turbine towers. Instead of a solid steel tube, the Space Frame tower consists of a highly optimized design of five custom-shaped legs and interlaced steel struts. With this design, Space Frame towers can support turbines at greater heights, yet weigh and cost less than traditional steel tube towers. Wind Tower Systems LLC (now

414

Basic Integrative Models for Offshore Wind Turbine Systems  

E-Print Network (OSTI)

wind turbine were studied using a variety of design load, and soil conditions scenarios. Aerodynamic thrust loads were estimated using the FAST Software developed by the U.S Department of Energys National Renewable Energy Laboratory (NREL...

Aljeeran, Fares

2012-07-16T23:59:59.000Z

415

Performance Study and Optimization of the Zephergy Wind Turbine  

E-Print Network (OSTI)

There are many problems associated with small wind turbines, such as small Reynolds number and poor starting performance, that make them much more expensive than the large ones per unit power. New technologies are needed to improve the quality...

Soodavi, Moein

2013-12-04T23:59:59.000Z

416

United States Launches First Grid-Connected Offshore Wind Turbine...  

Energy Savers (EERE)

partners conducted extensive design, engineering, and testing of floating offshore wind turbines, then constructed and deployed its 65-foot-tall VolturnUS prototype. At a scale of...

417

Design of wind turbines with Ultra-High Performance Concrete  

E-Print Network (OSTI)

Ultra-High Performance Concrete (UHPC) has proven an asset for bridge design as it significantly reduces costs. However, UHPC has not been applied yet to wind turbine technology. Design codes do not propose any recommendations ...

Jammes, Franois-Xavier

2009-01-01T23:59:59.000Z

418

DWEA Webinar: IRS Guidance for Small Wind Turbines  

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

The U.S. Internal Revenue Service (IRS) has issued Notice 2015-4 providing new performance and quality standards of small wind turbines defined as having a nameplate capacity of up to 100 kW in...

419

Community Wind Handbook/Research Turbine Models | Open Energy...  

Open Energy Info (EERE)

it is important to know that many resources are available to help you select small wind turbines that are safe and reliable investments when properly installed. First, the Small...

420

Characteristics of Wind Turbines Under Normal and Fault Conditions: Preprint  

SciTech Connect

This paper investigates the characteristics of a variable-speed wind turbine connected to a stiff or weak grid under normal and fault conditions and the role of reactive power compensation.

Muljadi, E.; Butterfield, C. P.; Parsons, B.; Ellis, A.

2007-02-01T23:59:59.000Z

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


421

Vertical axis wind turbine with continuous blade angle adjustment  

E-Print Network (OSTI)

The author presents a concept for a vertical axis wind turbine that utilizes each blade's entire rotational cycle for power generation. Each blade has its own vertical axis of rotation and is constrained to rotate at the ...

Weiss, Samuel Bruce

2010-01-01T23:59:59.000Z

422

Superconducting generators for large off shore wind turbines  

E-Print Network (OSTI)

This thesis describes four novel superconducting machine concepts, in the pursuit of finding a suitable design for large offshore wind turbines. The designs should be reliable, modular and light-weight. The main novelty ...

Keysan, Ozan

2014-06-30T23:59:59.000Z

423

Impact of DFIG wind turbines on transient stability of power systems a review  

E-Print Network (OSTI)

Impact of DFIG wind turbines on transient stability of power systems ­ a review Authors Na Abstract of wind farms are using variable speed wind turbines equipped with doubly-fed induction generators (DFIG) due to their advantages over other wind turbine generators. Therefore, the analysis of wind power

Pota, Himanshu Roy

424

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

E-Print Network (OSTI)

The Use of Tall Tower Field Data for Estimating Wind Turbine Power Performance A. Swift1 , J wind speed measurements on the TTU WISE 200m and 78m towers. A hypothetical wind turbine is shown. At potential wind turbine sites, it is uncommon to have wind measurements available at multiple heights. Then

Manuel, Lance

425

Analysis of Transportation and Logistics Challenges Affecting the Deployment of Larger Wind Turbines: Summary of Results  

SciTech Connect

There is relatively little literature that characterizes transportation and logistics challenges and the associated effects on U.S. wind markets. The objectives of this study were to identify the transportation and logistics challenges, assess the associated impacts, and provide recommendations for strategies and specific actions to address the challenges. The authors primarily relied on interviews with wind industry project developers, original equipment manufacturers, and transportation and logistics companies to obtain the information and industry perspectives needed for this study. They also reviewed published literature on trends and developments in increasing wind turbine size, logistics, and transportation issues.

Cotrell, J.; Stehly, T.; Johnson, J.; Roberts, J. O.; Parker, Z.; Scott, G.; Heimiller, D.

2014-01-01T23:59:59.000Z

426

Multivariate analysis and prediction of wind turbine response to varying wind field characteristics based on machine learning  

E-Print Network (OSTI)

Multivariate analysis and prediction of wind turbine response to varying wind field characteristics characteristics have a significant impact on the structural response and the lifespan of wind turbines. This paper presents a machine learning approach towards analyzing and predicting the response of wind turbine

Stanford University

427

Dual-Axis Resonance Testing of Wind Turbine Blades  

Wind turbine blades must undergo strength and fatigue testing in order to be rated and marketed appropriately. Presently, wind turbine blades are fatigue-tested in the flapwise direction and in the edgewise direction independently. This testing involves placing the blades through 1 to 10 million or more load or fatigue cycles, which may take 3 to 12 months or more to complete for each tested direction. There is a need for blade testing techniques that are less expensive to use and require...

2014-07-28T23:59:59.000Z

428

Operational behavior of a double-fed permanent magnet generator for wind turbines  

E-Print Network (OSTI)

Greater efficiency in wind turbine systems is achieved by allowing the rotor to change its rate of rotation as the wind speed changes. The wind turbine system is decoupled from the utility grid and a variable speed operation ...

Reddy, Sivananda Kumjula

2005-01-01T23:59:59.000Z

429

Volumetric Lidar Scanning of Wind Turbine Wakes under Convective and Neutral Atmospheric Stability Regimes  

Science Journals Connector (OSTI)

Optimization of a wind farms layout is a strategic task to reduce wake effects on downstream turbines, thus maximizing wind power harvesting. However, downstream evolution and recovery of each wind turbine wake are strongly affected by the ...

Giacomo Valerio Iungo; Fernando Port-Agel

2014-10-01T23:59:59.000Z

430

Well-posedness and controllability of a wind turbine tower model  

Science Journals Connector (OSTI)

......of this paper is to develop a wind turbine model in the plane of...force and torque control. Large offshore turbines are subjected to severe...2002) Dynamic modeling of wind farm grid interaction. Wind Eng., 26, 191208. LITTMAN......

Xiaowei Zhao; George Weiss

2011-03-01T23:59:59.000Z

431

Variable speed wind turbine for maximum power capture using adaptive fuzzy integral sliding mode control  

Science Journals Connector (OSTI)

This paper presents a nonlinear control approach to variable speed wind turbine (VSWT) with a wind speed estimator. The dynamics of the wind turbine (WT) is derived from single ... has been considered for exact e...

Saravanakumar Rajendran

2014-06-01T23:59:59.000Z

432

Dynamic analysis of tension leg platform for offshore wind turbine support as fluid-structure interaction  

Science Journals Connector (OSTI)

Tension leg platform (TLP) for offshore wind turbine support is a new type structure in wind energy utilization. The strong-interaction method is ... and the dynamic characteristics of the TLP for offshore wind turbine

Hu Huang ? ?; She-rong Zhang ???

2011-03-01T23:59:59.000Z

433

Hybrid Offshore Wind and Tidal Turbine Power System to Compensate for Fluctuation (HOTCF)  

Science Journals Connector (OSTI)

The hybrid system proposed in this study involves an offshore-wind turbine and a complementary tidal turbine that supplies grid power. The hybrid windtidal system consistently combines wind power and tidal power...

Mohammad Lutfur Rahman; Shunsuke Oka; Yasuyuki Shirai

2011-01-01T23:59:59.000Z

434

Atmospheric and Wake Turbulence Impacts on Wind Turbine Fatigue Loadings  

SciTech Connect

Large-eddy simulations of atmospheric boundary layers under various stability and surface roughness conditions are performed to investigate the turbulence impact on wind turbines. In particular, the aeroelastic responses of the turbines are studied to characterize the fatigue loading of the turbulence present in the boundary layer and in the wake of the turbines. Two utility-scale 5-MW turbines that are separated by seven rotor diameters are placed in a 3 km by 3 km by 1 km domain. They are subjected to atmospheric turbulent boundary layer flow and data is collected on the structural response of the turbine components. The surface roughness was found to increase the fatigue loads while the atmospheric instability had a small influence. Furthermore, the downstream turbines yielded higher fatigue loads indicating that the turbulent wakes generated from the upstream turbines have significant impact.

Lee, S.; Churchfield, M.; Moriarty, P.; Jonkman, J.; Michalakes, J.

2012-01-01T23:59:59.000Z

435

DOE/SNL-TTU scaled wind farm technology facility : research opportunities for study of turbine-turbine interaction.  

SciTech Connect

The proposed DOE/Sandia Scaled Wind Farm Technology Facility (SWiFT) hosted by Texas Tech University at Reese Technology Center in Lubbock, TX, will provide a facility for experimental study of turbine-turbine interaction and complex wind farm aerodynamics. This document surveys the current status of wind turbine wake and turbine-turbine interaction research, identifying knowledge and data gaps that the proposed test site can potentially fill. A number of turbine layouts is proposed, allowing for up to ten turbines at the site.

Barone, Matthew Franklin; White, Jonathan

2011-09-01T23:59:59.000Z

436

Development of Simplified Models for Wind Turbine Blades with Application to NREL 5 MW Offshore Research Wind Turbine  

Science Journals Connector (OSTI)

Integration of complex models of wind turbine blades in aeroelastic simulations places an untenable demand on computational resources and, hence, means of speed-up become necessary. This paper considers the pr...

Majid Khorsand Vakilzadeh; Anders T. Johansson

2014-01-01T23:59:59.000Z

437

New England Tech Wind Turbine | Open Energy Information  

Open Energy Info (EERE)

New England Tech Wind Turbine New England Tech Wind Turbine Facility New England Tech Wind Turbine Sector Wind energy Facility Type Small Scale Wind Facility Status In Service Owner New England Institute of Technology Energy Purchaser New England Institute of Technology Location Warwick RI Coordinates 41.732743°, -71.451466° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.732743,"lon":-71.451466,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

438

Challenges in the reliability and maintainability data collection for offshore wind turbines  

Science Journals Connector (OSTI)

Wind energy is abundantly available both onshore and offshore. As a response to the present climate crisis focus on wind energy is increasing due to its renewable and environmentally friendly characteristics. Due to social and political reasons the trend has been shifted largely from onshore to offshore wind farms. Offshore wind energy production faces a wide range of new challenges in design, development, manufacturing, installation, and maintenance and operation. The need, objectives, method, benefits, and application of a proposed reliability and maintainability database are identified in this paper. In the offshore oil and gas industry the OREDA concept for data collection has been running for more than 25 years. Therefore it will be briefly described what is considered to be the state of the art in this industry when it comes to data collection. Potential challenges and issues pertaining to the reliability and maintainability data collection of offshore wind turbines are outlined and categorized. The architecture of the proposed database is illustrated. The main building blocks of the database are briefly described and their possible effects on the reliability and maintainability of offshore wind turbines are highlighted. It is expected that the realization of the proposed database will open a new vista of knowledge in understanding the real behavior of offshore wind turbines in the marine environment. Another expectation is the benefits it will bring to the technological areas ranging from design to operation.

Z. Hameed; J. Vatn; J. Heggset

2011-01-01T23:59:59.000Z

439

The effect of ocean waves on offshore wind turbines  

Science Journals Connector (OSTI)

The Ocean has a varying surface roughness where the roughness length is determined by the characteristics of the waves. In this paper, a method is established where the roughness length of the ocean is calculated from the wind speed and the fetch length. The fetch length depends on the wind direction and a case study is performed for a wind turbine exposed to wind blowing in two opposite directions: from the shore and the sea. For each case, the vertical wind speed distribution is calculated in order to study the influence that the direction of the wind has on the annual energy production. The potential for using a site-specific offshore turbine design, dependent on the prevailing wind direction, is also explored.

T. Thorsen; H. Naeser

2002-01-01T23:59:59.000Z

440

Modelling and Analysis of Variable Speed Wind Turbines with Induction Generator during Grid  

E-Print Network (OSTI)

Modelling and Analysis of Variable Speed Wind Turbines with Induction Generator during Grid Fault Wind Turbines with Induction Generator during Grid Fault by Sigrid M. Bolik Institute of Energy turbine technology has undergone rapid developments. Growth in size and the optimization of wind turbines

Hansen, René Rydhof

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


441

Does the infrasound from wind turbines affect the inner ear? Alec N. Salt1  

E-Print Network (OSTI)

Does the infrasound from wind turbines affect the inner ear? Alec N. Salt1 1 Washington University turbines adversely affects human health. The unweighted spectrum of wind turbine noise slowly rises (needing over 120 dB SPL to detect 2 Hz) it is claimed that infrasound generated by wind turbines is below

Salt, Alec N.

442

EEMD-based wind turbine bearing failure detection using the generator stator current homopolar component  

E-Print Network (OSTI)

EEMD-based wind turbine bearing failure detection using the generator stator current homopolar turbine generators for stationary and non stationary cases. Keyword: Wind turbine, induction generator on the installed equipment because they are hardly accessible or even inaccessible [1]. 1.1. Wind turbine failure

Boyer, Edmond

443

M. Bahrami ENSC 283 (S 11) Wind Turbine Project 1 ENSC 283 Project  

E-Print Network (OSTI)

and the vertical-axis wind turbine (VAWT) in Figure 2-b. The designation simply depends on the axis of rotationM. Bahrami ENSC 283 (S 11) Wind Turbine Project 1 ENSC 283 Project Assigned date: Feb. 23, 2011 family), but also important are those which extract energy form the fluid such as turbines. Wind turbines

Bahrami, Majid

444

DEVELOPMENT OF AN ULTRASONIC NDT SYSTEM FOR AUTOMATED IN-SITU INSPECTION OF WIND TURBINE BLADES  

E-Print Network (OSTI)

of a wind turbine, including turbine blades, tower, gears, generator bearings etc. [2]. However, due to highDEVELOPMENT OF AN ULTRASONIC NDT SYSTEM FOR AUTOMATED IN- SITU INSPECTION OF WIND TURBINE BLADES Abington, Cambridge, CB21 6AL, UK bic@brunel.ac.uk ABSTRACT It is crucial to maintain wind turbine blades

Boyer, Edmond

445

Understanding Wind Turbine Price Trends in the U.S. Over the Past Decade  

E-Print Network (OSTI)

a wind turbines price is assumed to cover the tower,Wind turbines are material-intensive. Each individual tower,and towers and lattice masts, and assume that 100% of the former and 95% of the latter are attributable to wind turbines.

Bolinger, Mark

2013-01-01T23:59:59.000Z

446

Advanced wind turbine design studies: Advanced conceptual study. Final report  

SciTech Connect

In conjunction with the US Department of Energy and the National Renewable Energy Laboratory`s Advanced Wind Turbine Program, the Atlantic Orient Corporation developed preliminary designs for the next generation of wind turbines. These 50 kW and 350 kW turbines are based upon the concept of simplicity. By adhering to a design philosophy that emphasizes simplicity, we project that these turbines will produce energy at extremely competitive rates which will unlock the potential of wind energy domestically and internationally. The program consisted of three distinct phases. First, we evaluated the operational history of the Enertech 44 series wind turbines. As a result of this evaluation, we developed, in the second phase, a preliminary design for a new 50 kW turbine for the near-term market. In the third phase, we took a clean-sheet-of-paper approach to designing a 350 kW turbine focused on the mid-1990s utility market that incorporated past experience and advanced technology.

Hughes, P.; Sherwin, R. [Atlantic Orient Corp., Norwich, VT (United States)] [Atlantic Orient Corp., Norwich, VT (United States)

1994-08-01T23:59:59.000Z

447

Modeling and Simulation of Wind Shear and Tower Shadow on Wind Turbines  

Science Journals Connector (OSTI)

Abstract This paper focuses on the modeling and simulation in Matlab/Simulink of the effects of wind shear and tower shadow in a three bladed, variable-speed wind turbine system. The study of the mechanical stress, the mitigation of the torque oscillations and the improvement of the aerodynamic efficiency below rated wind speed, can be attained with a proper modeling of the turbine system. This paper is a contribution on the study of the effects of wind shear and tower shadow, often approximated or neglected, that have to be properly understood, considered and modeled in order to get a better performance of the turbine system.

H. Sintra; V.M.F. Mendes; R. Melcio

2014-01-01T23:59:59.000Z

448

Influence of non-Gaussian wind characteristics on wind turbine extreme response  

Science Journals Connector (OSTI)

Abstract The wind turbulence inflows specified in current wind turbine design standards and turbine response simulation tools are usually modeled as stationary random Gaussian processes. Field measurement data, however, suggest that wind turbulence in complex terrain exhibits non-Gaussian characteristics. This study presents a comprehensive investigation on extreme response of operational and parked wind turbines to non-Gaussian wind field. The non-Gaussian wind fields with specified non-Gaussian statistics and power spectral characteristics are generated using translation process theory and spectral representation method. The wind turbine response time histories at each wind speed bin are simulated. The turbine response statistical moments influenced by the non-Gaussian wind inflow are examined. The extreme response distributions conditional on wind speeds are determined from the simulation data using global maxima method and random process model method. The overall extreme response distribution is then calculated by further integrating the distribution of mean wind speed, which is used to quantify the extreme responses with various mean recurrence intervals (MRIs). The results showed that the non-Gaussian characteristics of wind inflows can result in noticeably larger extremes of blade root edgewise and tower base fore-aft bending moments of operational turbine, and blade root flapwise bending moment of parked turbine. The responses with larger \\{MRIs\\} are more sensitive to the non-Gaussian characteristics of wind inflows. The responses of parked turbine are less sensitive to non-Gaussian, especially, the tower base side-to-side bending moment is almost not affected by non-Gaussian. New insights on the determination of extreme response distribution from random process method are also presented focusing on a better modeling of the response distribution tail.

Kuangmin Gong; Xinzhong Chen

2014-01-01T23:59:59.000Z

449

Surpassing Expectations: State of the U.S. Wind Power Market  

E-Print Network (OSTI)

States, new large-scale wind turbines were installed in 18The average size of wind turbines installed in the Uniteddominant manufacturer of wind turbines supplying the U.S.

Bolinger, Mark A

2009-01-01T23:59:59.000Z

450

Simulation and modeling of flow field around a horizontal axis wind turbine (HAWT) using RANS method.  

E-Print Network (OSTI)

??The principal objective of the proposed CFD analysis is to investigate the flow field around a horizontal axis wind turbine rotor and calculate the turbine's (more)

Sargsyan, Armen.

2010-01-01T23:59:59.000Z

451

Recovery Act Incentives for Wind Energy Equipment Manufacturing...  

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

Equipment Manufacturing Document that lists some of the major federal incentives for wind power deployment. federalincentiveswinddeployment.pdf More Documents & Publications...

452

New Modularization Framework Transforms FAST Wind Turbine Modeling Tool  

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

The National Renewable Energy Laboratory recently released an expanded version of its FAST wind turbine computer-aided engineering tool under a new modularization framework. The new framework will transform FAST into a powerful, robust, and flexible modeling software for wind and water power technology developers.

453

Detailed Observations of Wind Turbine Clutter with Scanning Weather Radars  

Science Journals Connector (OSTI)

The wind power industry has seen tremendous growth over the past decade and with it has come the need for clutter mitigation techniques for nearby radar systems. Wind turbines can impart upon these radars a unique type of interference that is not ...

B. M. Isom; R. D. Palmer; G. S. Secrest; R. D. Rhoton; D. Saxion; T. L. Allmon; J. Reed; T. Crum; R. Vogt

2009-05-01T23:59:59.000Z

454

Harbin Wind Power Equipment Company | Open Energy Information  

Open Energy Info (EERE)

Company Jump to: navigation, search Name: Harbin Wind Power Equipment Company Place: Harbin, Heilongjiang Province, China Sector: Wind energy Product: A wind turbine manufacturer....

455

Vestas Wind Technology China Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Co Ltd Place: Tianjin Municipality, China Zip: 300462 Sector: Wind energy Product: A manufacturer engaged in producing wind turbine in China. References: Vestas Wind...

456

Assessment of annoyance due to wind turbine noise  

Science Journals Connector (OSTI)

The overall aim of this study was to evaluate the perception and annoyance of noise from wind turbines in populated areas of Poland. The study group comprised 156 subjects. All subjects were interviewed using a questionnaire developed to enable evaluation of their living conditions including prevalence of annoyance due to noise from wind turbines and the self-assessment of physical health and wellbeing. In addition current mental health status of respondents was assessed using Goldberg General Health Questionnaire GHQ-12. For areas where respondents lived A-weighted sound pressure levels (SPLs) were calculated as the sum of the contributions from the wind power plants in the specific area. It has been shown that the wind turbine noise at the calculated A-weighted SPL of 30?48 dB was perceived as annoying outdoors by about one third of respondents while indoors by one fifth of them. The proportions of the respondents annoyed by the wind turbine noise increased with increasing A-weighted sound pressure level. Subjects' attitude to wind turbines in general and sensitivity to landscape littering was found to have significant impact on the perceived annoyance. Further studies are needed including a larger number of respondents before firm conclusions can be drawn.

Malgorzata Pawlaczyk-Luszczynska; Kamil Zaborowski; Malgorzata Zamojska; Malgorzata Waszkowska

2013-01-01T23:59:59.000Z

457

Assessment of annoyance due to wind turbine noise  

Science Journals Connector (OSTI)

The overall aim of this study was to evaluate the perception and annoyance of noise from wind turbines in populated areas of Poland. The study group comprised 378 subjects. All subjects were interviewed using a questionnaire developed to enable evaluation of their living conditions including prevalence of annoyance due to noise from wind turbines and the self-assessment of physical health and well-being. In addition current mental health status of respondents was assessed using Goldberg General Health Questionnaire GHQ-12. For areas where respondents lived A-weighted sound pressure levels (SPLs) were calculated as the sum of the contributions from the wind power plants in the specific area. It has been shown that the wind turbine noise at the calculated A-weighted SPL of 30?50 dB was perceived as annoying outdoors by about one third of respondents while indoors by one fifth of them. The proportions of the respondents annoyed by the wind turbine noise increased with increasing A-weighted sound pressure level. Subjects attitude to wind turbines in general and sensitivity to landscape littering was found to have significant impact on the perceived annoyance. Further studies are needed including a larger number of respondents before firm conclusions can be drawn.

2013-01-01T23:59:59.000Z

458

High Wind Penetration Impact on U.S. Wind Manufacturing Capacity and Critical Resources  

SciTech Connect

This study used two different models to analyze a number of alternative scenarios of annual wind power capacity expansion to better understand the impacts of high levels of wind generated electricity production on wind energy manufacturing and installation rates.

Laxson, A.; Hand, M. M.; Blair, N.

2006-10-01T23:59:59.000Z

459

NREL: Technology Transfer - White Earth Nation Installs Turbines: A Wind  

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

White Earth Nation Installs Turbines: A Wind Powering America Success Story White Earth Nation Installs Turbines: A Wind Powering America Success Story February 11, 2013 Almost 8 years after taking the initial steps to harness the wind, the White Earth Nation recently completed the installation of two small wind turbines that will help offset energy costs for Minnesota's largest and most populous Native American reservation. Mike Triplett, economic development planner with the White Earth Development Office, believes that the project represents a unique opportunity for tribal entities in the United States. He noted that tribes don't qualify for tax-based incentives. "And as for working with investors, we never found that to be a viable option," Triplett said. "So we've relied heavily on grants." Funded through nearly $1.8 million in congressional appropriations along

460

Wind turbine technologynot as simple as it looks  

Science Journals Connector (OSTI)

Wind is a clean and inexhaustible energy resource serving mankind for many centuries by driving windmills to grind grain and pump water. This presentation gives a brief historical review from the earliest drag?type windmills existing as early as 2000 BC through the early electricity?generating units in the early 1900s to the present?day wind turbine parks. The 1973 oil embargo and 197980 price increases brought new awareness of conservation and promoted new interest in renewable energy resources and wind turbine technology. Many lessons are being learned in the design of modern wind turbines. The quest for low installation and maintenance costs energy conversion efficiency and high reliability continues. Unforeseen environmental issues such as visual pollution noiseimpacts and TV reception interference are to be addressed. The technical features and operating characteristics of various designs are presented including problems encountered and their solutions.

Michael C. Wehrey

1986-01-01T23:59:59.000Z

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


461

New tools for identification of wind turbine structures  

SciTech Connect

The new identification tools used in this research to analyze input-output time histories of a wind turbine structure, with a wide-band excitation, allow to obtain its modal state space representation. This representation reveals the internal behavior of the system, such as the interaction between its physical parameters. The techniques presented in this paper also allow researchers to obtain modal parameters, as well as frequency responses of a properly excited wind turbine structure immersed in wind noise. The use of two identification algorithms with the same, relatively simple numerical example, enables to compare the results obtained with the actual characteristics of the system modeled. Then, an example using the data generated by the ADAMS{reg_sign} model of the Micon 65/13 wind turbine structure is considered to illustrate additional elements to be included in the identification procedure for such a complex flexible structure.

Bialasiewicz, J.T.; Osgood, R.M. [National Renewable Enery Lab., Golden, CO (United States)

1995-12-31T23:59:59.000Z

462

Application of Damage Detection Techniques Using Wind Turbine Modal Data  

SciTech Connect

As any structure ages, its structural characteristics will also change. The goal of this work was to determine if modal response data fkom a wind turbine could be used in the detection of damage. The input stimuli to the wind turbine were from traditional modal hammer input and natural wind excitation. The structural response data was acquired using accelerometers mounted on the rotor of a parked and undamaged horizontal-axis wind turbine. The bolts at the root of one of the three blades were then loosened to simulate a damaged blade. The structural response data of the rotor was again recorded. The undamaged and damage-simulated datasets were compared using existing darnage detection algorithms. Also, a novel algorithm for combining the results of different damage detection algorithms was utilized in the assessment of the data. This paper summarizes the code development and discusses some preliminary damage detection results.

Gross, E.; Rumsey, M.; Simmermacher, T.; Zadoks, R.I.

1998-12-17T23:59:59.000Z

463

A Summary of the Fatigue Properties of Wind Turbine Materials  

SciTech Connect

Modern wind turbines are fatigue critical machines that are typically used to produce electrical power from the wind. The materials used to construct these machines are subjected to a unique loading spectrum that contains several orders of magnitude more cycles than other fatigue critical structures, e.g., an airplane. To facilitate fatigue designs, a large database of material properties has been generated over the past several years that is specialized to materials typically used in wind turbines. In this paper, I review these fatigue data. Major sections are devoted to the properties developed for wood, metals (primarily aluminum) and fiberglass. Special emphasis is placed on the fiberglass discussion because this material is current the material of choice for wind turbine blades. The paper focuses on the data developed in the U.S., but cites European references that provide important insights.

SUTHERLAND, HERBERT J.

1999-10-07T23:59:59.000Z

464

An Experimental Investigation on the Wake Interference of Wind Turbines Sited Over Complex Terrains  

E-Print Network (OSTI)

1 An Experimental Investigation on the Wake Interference of Wind Turbines Sited Over Complex, 50011 An experimental study was conducted to investigate the interferences of wind turbines sited over conducted in a large wind tunnel with of wind turbine models sited over a flat terrain (baseline case

Hu, Hui

465

Set-point reconfiguration approach for the FTC of wind turbines  

E-Print Network (OSTI)

Set-point reconfiguration approach for the FTC of wind turbines B. Boussaid C. Aubrun N system stability. The effectiveness of the proposed solution is illustrated by a wind turbine example issue. Nowadays, wind turbines which generate electrical energy from the wind energy are considered one

Paris-Sud XI, Université de

466

Management and Conservation Article Behavioral Responses of Bats to Operating Wind Turbines  

E-Print Network (OSTI)

Management and Conservation Article Behavioral Responses of Bats to Operating Wind Turbines JASON W used thermal infrared (TIR) cameras to assess the flight behavior of bats at wind turbines because fatalities, migratory tree bats, thermal infrared imaging, wind power, wind turbines. Recent studies indicate

Holberton, Rebecca L.

467

Mitigation of Fatigue Loads Using Individual Pitch Control of Wind Turbines Based on FAST  

E-Print Network (OSTI)

Mitigation of Fatigue Loads Using Individual Pitch Control of Wind Turbines Based on FAST Yunqian University, China jiz@seu.edu.cn Abstract-With the increase of wind turbine dimension and capacity, the wind turbine structures are subjected to prominent loads and fatigue which would reduce the lifetime of wind

Chen, Zhe

468

Hilbert Transform-Based Bearing Failure Detection in DFIG-Based Wind Turbines  

E-Print Network (OSTI)

Hilbert Transform-Based Bearing Failure Detection in DFIG-Based Wind Turbines Yassine Amirat1 and proactive maintenance of wind turbines assumes more importance with the increasing number of installed wind current sensors installed within the wind turbine generator. This paper describes then an approach based

Boyer, Edmond

469

BAYESIAN UPDATING OF PROBABILISTIC TIME-DEPENDENT FATIGUE MODEL: APPLICATION TO JACKET FOUNDATIONS OF WIND TURBINES  

E-Print Network (OSTI)

OF WIND TURBINES Benjamin Rocher1,2 , Franck Schoefs1 , Marc François1 , Arnaud Salou2 1 LUNAM Université.rocher@univ-nantes.fr ABSTRACT Due to both wave and wind fluctuation, the metal foundations of offshore wind turbines are highly algorithm. KEYWORDS: Fatigue, Damage, Reliability, Bayesian updating. INTRODUCTION In offshore wind turbines

Boyer, Edmond

470

Ris-R-1000(EN) Cost Optimization of Wind Turbines for  

E-Print Network (OSTI)

Risø-R-1000(EN) Cost Optimization of Wind Turbines for Large-scale Off-shore Wind Farms Peter contains a preliminary investigation of site specific design of off- shore wind turbines for a large off using a design tool for wind turbines that involve numerical optimization and aeroelastic calculations

471

Dynamic control of wind turbines Andrew Kusiak*, Wenyan Li, Zhe Song  

E-Print Network (OSTI)

Dynamic control of wind turbines Andrew Kusiak*, Wenyan Li, Zhe Song Department of Mechanical Keywords: Wind turbine Wind energy Data mining Model predictive control Evolutionary computation algorithm Control strategy optimization a b s t r a c t The paper presents an intelligent wind turbine control

Kusiak, Andrew

472

Time-domain Fatigue Response and Reliability Analysis of Offshore Wind Turbines with  

E-Print Network (OSTI)

Time-domain Fatigue Response and Reliability Analysis of Offshore Wind Turbines with Emphasis of offshore wind turbines Defense: 09.12.2012 2012 - : Structural Engineer in Det Norske Veritas (DNV) 2007 of the drive train of an on-land wind turbine under dynamic wind loads. The main tasks of this study are to

Nørvåg, Kjetil

473

Ris-R-Report Grid fault and design-basis for wind turbines -  

E-Print Network (OSTI)

Risø-R-Report Grid fault and design-basis for wind turbines - Final report Anca D. Hansen, Nicolaos and design-basis for wind turbines - Final report Division: Wind Energy Division Risø-R-1714(EN) January 2010-basis for wind turbines". The objective of this project has been to assess and analyze the consequences

474

Coriolis Effect on Dynamic Stall in a Vertical Axis Wind Turbine at Moderate Reynolds Number  

E-Print Network (OSTI)

axis wind turbines (VAWT) offer several advantages over horizontal axis wind turbines (HAWT), namely to yaw wind direction (because they are omnidirectional), and their increased power output in skewed flowCoriolis Effect on Dynamic Stall in a Vertical Axis Wind Turbine at Moderate Reynolds Number Hsieh

Colonius, Tim

475

Coupled multi-body dynamics and CFD for wind turbine simulation including explicit wind turbulence  

Science Journals Connector (OSTI)

Abstract A high fidelity approach for wind turbine aero-elastic simulations including explicit representation of the atmospheric wind turbulence is presented. The approach uses a dynamic overset computational fluid dynamics (CFD) code for the aerodynamics coupled with a multi-body dynamics (MBD) code for the motion responses to the aerodynamic loads. Mann's wind turbulence model was implemented into the CFD code as boundary and initial conditions. The wind turbulence model was validated by comparing the theoretical one-point spectrum for the three components of the velocity fluctuations, and by comparing the expected statistics from the CFD simulated wind turbulent field with the explicit wind turbulence inlet boundary from Mann model. Extensive simulations based on the proposed coupled approach were conducted with the conceptual NREL 5-MW offshore wind turbine in an increasing level of complexity, analyzing the turbine behavior as elasticity, wind shear and atmospheric wind turbulence are added to the simulations. Results are compared with the publicly available simulations results from OC3 participants, showing good agreement for the aerodynamic loads and blade tip deflections in time and frequency domains. Wind turbulence/turbine interaction was examined for the wake flow. It was found that explicit turbulence addition results in considerably increased wake diffusion. The coupled CFD/MBD approach can be extended to include multibody models of the shaft, bearings, gearbox and generator, resulting in a promising tool for wind turbine design under complex operational environments.

Y. Li; A.M. Castro; T. Sinokrot; W. Prescott; P.M. Carrica

2015-01-01T23:59:59.000Z

476

Flow Simulations of a Rotating MidSized Rim Driven Wind Turbine  

E-Print Network (OSTI)

relatively high free stream wind velocities that limit the geographic areas suitable for wind energy. The Keuka rimdriven wind turbine (RDWT) (U.S. Patent 7399162) developed by Keuka Energy LLC is one wind turbine designed for wind energy extraction in locations of wind class three

Maccabe, Barney

477

Design guidelines for H-Darrieus wind turbines: Optimization of the annual energy yield  

Science Journals Connector (OSTI)

Abstract H-Darrieus wind turbines are gaining popularity in the wind energy market, particularly as they are thought to represent a suitable solution even in unconventional installation areas. To promote the diffusion of this technology, industrial manufacturers are continuously proposing new and appealing exterior solutions, coupled with tempting rated-power offers. The actual operating conditions of a rotor over a year can be, however, very different from the nominal one and strictly dependent on the features of the installation site. Based on these considerations, a turbine optimization oriented to maximize the annual energy yield, instead of the maximum power, is thought to represent a more interesting solution. With this goal in mind, 21,600 test cases of H-Darrieus rotors were compared on the basis of their energy-yield capabilities for different annual wind distributions in terms of average speed. The wind distributions were combined with the predicted performance maps of the rotors obtained with a specifically developed numerical code based on a Blade Element Momentum (BEM) approach. The influence on turbine performance of the cut-in speed was accounted for, as well as the limitations due to structural loads (i.e. maximum rotational speed and maximum wind velocity). The analysis, carried out in terms of dimensionless parameters, highlighted the aerodynamic configurations able to ensure the largest annual energy yield for each wind distribution and set of aerodynamic constraints.

Alessandro Bianchini; Giovanni Ferrara; Lorenzo Ferrari

2015-01-01T23:59:59.000Z

478

Investigation on installation of offshore wind turbines  

Science Journals Connector (OSTI)

Wind power has made rapid progress and should ... interest in renewable energy and clean energy. Offshore wind energy resources have attracted significant attention, as, compared with land-based wind energy resou...

Wei Wang; Yong Bai

2010-06-01T23:59:59.000Z

479

Smooth Transition Between Controllers for Floating Wind Turbines  

Science Journals Connector (OSTI)

This paper presents a novel wind turbine control system which gives a smooth power output during transitions between different controllers. The paper presents an implementation of a control system designed for an offshore ?oating wind turbine using a linear Model Predictive Control approach.The performance is investigated in computer simulations, with emphasis on stability in the tower foreaft motion and behaviour during transition between controllers. The results clearly demonstrate that the wind turbine using the proposed algorithm for smooth transition indeed exhibits a smooth system behaviour. In comparison to a case with sudden transition, the behaviour is found to be signi?cantly improved. Moreover, tower oscillations are found to be stable, by virtue of the controller prediction horizon exceeding the natural periodicity of the tower oscillations.Smooth system behaviour is important to increase the lifetime of critical parts of the turbine. With increasing turbine sizes such considerations are of increasing importance, making the results obtained in this paper of particular relevance for large wind turbines, both onshore and offshore.

Eivind Lindeberg; Harald G Svendsen; Kjetil Uhlen

2012-01-01T23:59:59.000Z

480

Evaluation of wind turbine noise levels and impact studies  

Science Journals Connector (OSTI)

Measured A?weighted sound levels at 125?ft distance for individual wind turbines with 20? to 120?kW power ratings are typically in the range 6575 dB at moderate to high power output conditions (2030?mph wind speeds). Tonelike sounds in the 300? to 1000?Hz frequency range often are clearly audible. Cyclical fluctuations of 10 dB in low?frequency noise levels are propagated by some downwind?type turbines. The random aerodynamic rotor noisesounds like a roar the gear box noisesounds like a whine and the low?frequency noise fluctuations sound like thump?thump or whoosh?whoosh. All of these wind turbinenoises are propagated from existing wind farms to residential areas and are judged intrusive and annoying. Measurements and predictions of wind turbinenoise submitted with applications for wind farm development have often contained errors which understated the noise levels by 310 dB. These errors were due to noisemeasurements at minimal wind speeds and turbine power and faulty modeling procedures. Simple analytical expressions have been developed which quickly and accurately predict the noise levels for large turbine arrays.

Samuel R. Lane

1986-01-01T23:59:59.000Z

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


481

Methods and apparatus for cooling wind turbine generators  

DOE Patents (OSTI)

A wind turbine generator includes a stator having a core and a plurality of stator windings circumferentially spaced about a generator longitudinal axis. A rotor is rotatable about the generator longitudinal axis, and the rotor includes a plurality of magnetic elements coupled to the rotor and cooperating with the stator windings. The magnetic elements are configured to generate a magnetic field and the stator windings are configured to interact with the magnetic field to generate a voltage in the stator windings. A heat pipe assembly thermally engaging one of the stator and the rotor to dissipate heat generated in the stator or rotor.

Salamah, Samir A. (Niskayuna, NY); Gadre, Aniruddha Dattatraya (Rexford, NY); Garg, Jivtesh (Schenectady, NY); Bagepalli, Bharat Sampathkumaran (Niskayuna, NY); Jansen, Patrick Lee (Alplaus, NY); Carl, Jr., Ralph James (Clifton Park, NY)

2008-10-28T23:59:59.000Z

482

Condition Monitoring of Offshore Wind Turbines.  

E-Print Network (OSTI)

?? The growing interest around offshore wind power, providing at the same time better wind conditions and fewer visual or environmental impacts, has lead many (more)

Wisznia, Roman

2013-01-01T23:59:59.000Z

483

Sandia National Laboratories: Wind Turbine Blade Design  

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

Facilities, News, News & Events, Partnership, Renewable Energy, SWIFT, Systems Analysis, Wind Energy David Maniaci (in Sandia's Wind Energy Technologies Dept.) traveled to...

484

Assessing the Impacts of Reduced Noise Operations of Wind Turbines on Neighbor Annoyance: A Preliminary Analysis in Vinalhaven, Maine  

E-Print Network (OSTI)

only self-reported wind and turbine sound levels were used.Noise Operations of Wind Turbines on Neighbor Annoyance: ANoise Operations of Wind Turbines on Neighbor Annoyance: A

Hoen, Ben

2010-01-01T23:59:59.000Z

485

Assessing the Impacts of Reduced Noise Operations of Wind Turbines on Neighbor Annoyance: A Preliminary Analysis in Vinalhaven, Maine  

E-Print Network (OSTI)

of Reduced Noise Operations of Wind Turbines on Neighborof Reduced Noise Operations of Wind Turbines on NeighborWind Speed (m/s) 3 Turbines (in operation at the time) Noise

Hoen, Ben

2010-01-01T23:59:59.000Z

486

Analysis of wind turbine vibrations based on SCADA data  

E-Print Network (OSTI)

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?

Andrew Kusiak; Zijun Zhang

2010-01-01T23:59:59.000Z

487

Modelling of offshore wind turbine wakes with the wind farm program FLaP  

E-Print Network (OSTI)

Modelling of offshore wind turbine wakes with the wind farm program FLaP Bernhard Lange(1) , Hans been extended to improve the description of wake development in offshore conditions, especially the low from the Danish offshore wind farm Vindeby. Vertical wake profiles and mean turbulence intensities

Heinemann, Detlev

488

Identifying Structural Parameters of an Idling Offshore Wind Turbine Using Operational Modal Analysis  

Science Journals Connector (OSTI)

The design of modern day offshore wind turbines (OWTs) relies on numerical models, which ... needed for determining the design life of the turbines. The dynamic behavior, and thus the lifetime, of the turbines ar...

Paul L. C. van der Valk; Marco G. L. Ogno

2014-01-01T23:59:59.000Z

489

Proceedings from the Wind Manufacturing Workshop: Achieving 20% Wind Energy in the U.S. by 2030, May 2009  

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

Proceedings from the August 27-28, 2008 Wind Manufacturing Workshop held by the Wind and Hydropower Technologies Program

490

Conneaut Wastewater Facility Wind Turbine | Open Energy Information  

Open Energy Info (EERE)

Wastewater Facility Wind Turbine Wastewater Facility Wind Turbine Jump to: navigation, search Name Conneaut Wastewater Facility Wind Turbine Facility Conneaut Wastewater Facility Wind Turbine Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Conneaut Wastewater Facility Developer NexGen Energy Partners Energy Purchaser Conneaut Wastewater Facility Location Conneaut OH Coordinates 41.968223°, -80.552268° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.968223,"lon":-80.552268,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

491

Conneaut Middle School Wind Turbine | Open Energy Information  

Open Energy Info (EERE)

Conneaut Middle School Wind Turbine Conneaut Middle School Wind Turbine Jump to: navigation, search Name Conneaut Middle School Wind Turbine Facility Conneaut Middle School Wind Turbine Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Conneaut Middle School Developer NexGen Energy Partners Energy Purchaser Conneaut Middle School Location Conneaut OH Coordinates 41.92601°, -80.557126° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.92601,"lon":-80.557126,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

492

Woods Hole Research Center Wind Turbine | Open Energy Information  

Open Energy Info (EERE)

Hole Research Center Wind Turbine Hole Research Center Wind Turbine Jump to: navigation, search Name Woods Hole Research Center Wind Turbine Facility Woods Hole Research Center Wind Turbine Sector Wind energy Facility Type Small Scale Wind Facility Status In Service Owner Woods Hole Research Center Developer Sustainable Energy Developments Energy Purchaser Woods Hole Research Center Location Falmouth MA Coordinates 41.548637°, -70.64326° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.548637,"lon":-70.64326,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

493

Holy Name Central Catholic School Wind Turbine | Open Energy Information  

Open Energy Info (EERE)

Name Central Catholic School Wind Turbine Name Central Catholic School Wind Turbine Jump to: navigation, search Name Holy Name Central Catholic School Wind Turbine Facility Holy Name Central Catholic School Wind Turbine Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Holy Name Central Catholic School Developer Sustainable Energy Developments Energy Purchaser Holy Name Central Catholic School Location Worcester MA Coordinates 42.24087°, -71.783879° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.24087,"lon":-71.783879,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

494

Archbold Local Schools Wind Turbine | Open Energy Information  

Open Energy Info (EERE)

Archbold Local Schools Wind Turbine Archbold Local Schools Wind Turbine Jump to: navigation, search Name Archbold Local Schools Wind Turbine Facility Archbold Local Schools Wind Turbine Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Archbold Area Local Schools District Developer Archbold Area Local Schools District Energy Purchaser Archbold Area Local Schools District Location Archbold OH Coordinates 41.51543828°, -84.31605577° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.51543828,"lon":-84.31605577,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

495

Simulation of winds as seen by a rotating vertical axis wind turbine blade  

SciTech Connect

The objective of this report is to provide turbulent wind analyses relevant to the design and testing of Vertical Axis Wind Turbines (VAWT). A technique was developed for utilizing high-speed turbulence wind data from a line of seven anemometers at a single level to simulate the wind seen by a rotating VAWT blade. Twelve data cases, representing a range of wind speeds and stability classes, were selected from the large volume of data available from the Clayton, New Mexico, Vertical Plane Array (VPA) project. Simulations were run of the rotationally sampled wind speed relative to the earth, as well as the tangential and radial wind speeds, which are relative to the rotating wind turbine blade. Spectral analysis is used to compare and assess wind simulations from the different wind regimes, as well as from alternate wind measurement techniques. The variance in the wind speed at frequencies at or above the blade rotation rate is computed for all cases, and is used to quantitatively compare the VAWT simulations with Horizontal Axis Wind Turbine (HAWT) simulations. Qualitative comparisons are also made with direct wind measurements from a VAWT blade.

George, R.L.

1984-02-01T23:59:59.000Z

496

Nome, Alaska, Wind Turbine Demonstration Project Final Environmental Assessment and  

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

Final Environmental Assessment and Final Environmental Assessment and Finding of No Significant Impact November 2000 Prepared for: U.S. Department of Energy Golden Field Office 1617 Cole Blvd. Golden, CO 80401 Prepared by: Battelle Memorial Institute 505 King Avenue Columbus, OH 43201 Nome, Alaska, Wind Turbine Demonstration Project Finding of No Significant Impact Nome, Alaska, Wind Turbine Demonstration Project FINDING OF NO SIGNIFICANT IMPACT S U M M A R Y The U.S. Department of Energy (DOE) has prepared this Environmental Assessment (EA) to provide DOE and other public agency decision makers witb tbe environmental documentation required to take informed discretionary action on the proposed Nome, Alaska, Wind Turbine Demonstration Project (DOE/EA-1280). The EA assesses the potential environmental impacts and cumulative i

497

Lessons Learned: Milwaukees Wind Turbine Project  

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

City of Milwaukee: City of Milwaukee: Wind Turbine Project Matt Howard, Environmental Sustainability Director Project Best Practices * Transparency and information * Find the most appropriate site - both wind profile and building load * Stay away from neighborhoods and iconic civic sites * No surprises for locally elected officials * Active public engagement * Know the facts; kill the myths; control the narrative * Tie to local economic development * Cost-benefit analysis, budgeting, payback, over and over and over... Project Basics * Proposal to site ONE, small-scale wind turbine on City-owned building on Port Authority property * 2323 S. Lincoln Memorial Dr., Port Administration Building * Turbine will power ALL of Port Admin. Bldg's needs * Best estimate of total cost of installation/operation: $550,000-$600,000

498

Quiet airfoils for small and large wind turbines  

DOE Patents (OSTI)

Thick airfoil families with desirable aerodynamic performance with minimal airfoil induced noise. The airfoil families are suitable for a variety of wind turbine designs and are particularly well-suited for use with horizontal axis wind turbines (HAWTs) with constant or variable speed using pitch and/or stall control. In exemplary embodiments, a first family of three thick airfoils is provided for use with small wind turbines and second family of three thick airfoils is provided for use with very large machines, e.g., an airfoil defined for each of three blade radial stations or blade portions defined along the length of a blade. Each of the families is designed to provide a high maximum lift coefficient or high lift, to exhibit docile stalls, to be relatively insensitive to roughness, and to achieve a low profile drag.

Tangler, James L. (Boulder, CO); Somers, Dan L. (Port Matilda, PA)

2012-06-12T23:59:59.000Z

499

Adaptive pitch control for variable speed wind turbines  

DOE Patents (OSTI)

An adaptive method for adjusting blade pitch angle, and controllers implementing such a method, for achieving higher power coefficients. Average power coefficients are determined for first and second periods of operation for the wind turbine. When the average power coefficient for the second time period is larger than for the first, a pitch increment, which may be generated based on the power coefficients, is added (or the sign is retained) to the nominal pitch angle value for the wind turbine. When the average power coefficient for the second time period is less than for the first, the pitch increment is subtracted (or the sign is changed). A control signal is generated based on the adapted pitch angle value and sent to blade pitch actuators that act to change the pitch angle of the wind turbine to the new or modified pitch angle setting, and this process is iteratively performed.

Johnson, Kathryn E. (Boulder, CO); Fingersh, Lee Jay (Westminster, CO)

2012-05-08T23:59:59.000Z

500

Dynamic validated model of a DFIG wind turbine  

Science Journals Connector (OSTI)

This paper presents the development and qualitative validation of a doubly-fed induction generator (DFIG) wind turbine model that is represented in terms of behaviour equations of each of the subsystems, mainly the turbine rotor, the drive train, the induction generator, the power converters and associated control systems and a protection system. Simulation results obtained from the models are compared to the field measurement data in a qualitative manner due to rotor wake and lack of ability of a single anemometer for adequate measurement of wind speed acting on the large surface of the rotor. It is concluded that the model is reasonably accurate and can hence be used for representing wind turbines in power system dynamics simulations.

Md. Ayaz Chowdhury; Nasser Hosseinzadeh; Weixiang Shen

2014-01-01T23:59:59.000Z