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Note: This page contains sample records for the topic "blade aka sinoma" from the National Library of EnergyBeta (NLEBeta).
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1

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

Open Energy Info (EERE)

Page Edit History Facebook icon Twitter icon Sinomatech Wind Power Blade aka Sinoma Science Technology Wind Turbine Blade Co Ltd Jump to: navigation, search Name: Sinomatech...

2

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":""}]}

3

Henan Mingdu Wind Power Co Ltd aka He Nan Ming Du Feng Dian Limited Company  

Open Energy Info (EERE)

Henan Mingdu Wind Power Co Ltd aka He Nan Ming Du Feng Dian Limited Company Henan Mingdu Wind Power Co Ltd aka He Nan Ming Du Feng Dian Limited Company Jump to: navigation, search Name Henan Mingdu Wind Power Co Ltd (aka He Nan Ming Du Feng Dian Limited Company) Place Jiaozuo, Henan Province, China Sector Wind energy Product Wind turbine blades provider. References Henan Mingdu Wind Power Co Ltd (aka He Nan Ming Du Feng Dian Limited Company)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Henan Mingdu Wind Power Co Ltd (aka He Nan Ming Du Feng Dian Limited Company) is a company located in Jiaozuo, Henan Province, China . References ↑ "[ Henan Mingdu Wind Power Co Ltd (aka He Nan Ming Du Feng Dian Limited Company)]" Retrieved from

4

Jining Sunrich Solar Energy aka Huahan | Open Energy Information  

Open Energy Info (EERE)

Jining Sunrich Solar Energy aka Huahan Jump to: navigation, search Name: Jining Sunrich Solar Energy (aka Huahan) Place: Shandong Province, China Sector: Solar Product:...

5

China Solar Energy Ltd Tianpu Xianxing Group aka Beijing Universal...  

Open Energy Info (EERE)

China Solar Energy Ltd Tianpu Xianxing Group aka Beijing Universal Antecedence Jump to: navigation, search Name: China Solar Energy Ltd (Tianpu Xianxing Group, aka Beijing...

6

China Glass Solar aka CG Solar formerly Weihai Bluestar Terra...  

Open Energy Info (EERE)

Solar aka CG Solar formerly Weihai Bluestar Terra Photovoltaic Co Ltd Jump to: navigation, search Name: China Glass Solar (aka CG Solar, formerly Weihai Bluestar Terra Photovoltaic...

7

Solar Environmental Technologies Tianjin Corp aka SETC Cenicom...  

Open Energy Info (EERE)

Tianjin Corp aka SETC Cenicom Solar Etc Jump to: navigation, search Name: Solar & Environmental Technologies (Tianjin) Corp (aka SETC, Cenicom, Solar Etc) Place: Tianjin, Tianjin...

8

Shenyang Huachuang Wind Energy Corporation HCWE aka China Creative...  

Open Energy Info (EERE)

Shenyang Huachuang Wind Energy Corporation HCWE aka China Creative Wind Energy Co Ltd Jump to: navigation, search Name: Shenyang Huachuang Wind Energy Corporation (HCWE) (aka China...

9

Anwell Technologies Ltd aka Sungen | Open Energy Information  

Open Energy Info (EERE)

Anwell Technologies Ltd aka Sungen Anwell Technologies Ltd aka Sungen Jump to: navigation, search Name Anwell Technologies Ltd (aka Sungen) Place Hong Kong Sector Solar Product Anwell is a global supplier of advanced optical media equipment and process technologies. It is scouting for opportunities in providing turnkey solution for thin-film solar cells. References Anwell Technologies Ltd (aka Sungen)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Anwell Technologies Ltd (aka Sungen) is a company located in Hong Kong . References ↑ "[ Anwell Technologies Ltd (aka Sungen)]" Retrieved from "http://en.openei.org/w/index.php?title=Anwell_Technologies_Ltd_aka_Sungen&oldid=342214

10

Energy Conversion Devices Inc aka ECD Ovonics | Open Energy Information  

Open Energy Info (EERE)

Conversion Devices Inc aka ECD Ovonics Conversion Devices Inc aka ECD Ovonics Jump to: navigation, search Name Energy Conversion Devices Inc (aka ECD Ovonics) Place Rochester Hills, Michigan Zip 48309 Sector Solar Product Michigan-based materials developer and holding company for thin-film silicon PV manufacturer United Solar Ovonics. References Energy Conversion Devices Inc (aka ECD Ovonics)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Energy Conversion Devices Inc (aka ECD Ovonics) is a company located in Rochester Hills, Michigan . References ↑ "Energy Conversion Devices Inc (aka ECD Ovonics)" Retrieved from "http://en.openei.org/w/index.php?title=Energy_Conversion_Devices_Inc_aka_ECD_Ovonics&oldid=34484

11

Pioneer Valley Photovoltaics Cooperative aka PV Squared | Open Energy  

Open Energy Info (EERE)

Photovoltaics Cooperative aka PV Squared Photovoltaics Cooperative aka PV Squared Jump to: navigation, search Name Pioneer Valley Photovoltaics Cooperative (aka PV Squared) Place New Britain, Connecticut Zip 6051 Sector Solar Product Solar PV system installer. References Pioneer Valley Photovoltaics Cooperative (aka PV Squared)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Pioneer Valley Photovoltaics Cooperative (aka PV Squared) is a company located in New Britain, Connecticut . References ↑ "Pioneer Valley Photovoltaics Cooperative (aka PV Squared)" Retrieved from "http://en.openei.org/w/index.php?title=Pioneer_Valley_Photovoltaics_Cooperative_aka_PV_Squared&oldid=349764"

12

Sinocome Solar aka Perfect Field Investment | Open Energy Information  

Open Energy Info (EERE)

Solar aka Perfect Field Investment Solar aka Perfect Field Investment Jump to: navigation, search Name Sinocome Solar (aka Perfect Field Investment) Place China Product Chinese manufacturer of amorphous silicon thin-film cells and modules using technology patents owned by the Target Group, also a Chinese firm. References Sinocome Solar (aka Perfect Field Investment)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Sinocome Solar (aka Perfect Field Investment) is a company located in China . References ↑ "[ Sinocome Solar (aka Perfect Field Investment)]" Retrieved from "http://en.openei.org/w/index.php?title=Sinocome_Solar_aka_Perfect_Field_Investment&oldid=351122" Categories:

13

Pan Jit International Inc aka Panjit Group | Open Energy Information  

Open Energy Info (EERE)

Jit International Inc aka Panjit Group Jit International Inc aka Panjit Group Jump to: navigation, search Name Pan Jit International Inc (aka Panjit Group) Place Kaohsiung Hsien, Taiwan Zip 820 Sector Solar Product Pan Jit is a semiconductor and electronics firm which has entered the solar PV industry by acquiring Jiangsu Aide Solar. References Pan Jit International Inc (aka Panjit Group)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Pan Jit International Inc (aka Panjit Group) is a company located in Kaohsiung Hsien, Taiwan . References ↑ "[ Pan Jit International Inc (aka Panjit Group)]" Retrieved from "http://en.openei.org/w/index.php?title=Pan_Jit_International_Inc_aka_Panjit_Group&oldid=349576

14

GCL Solar Energy Technology Holdings formerly GCL Silicon aka...  

Open Energy Info (EERE)

GCL Solar Energy Technology Holdings formerly GCL Silicon aka Jiangsu Zhongneng Polysilicon Jump to: navigation, search Name: GCL Solar Energy Technology Holdings (formerly GCL...

15

RAPID/Roadmap/6-AK-a | Open Energy Information  

Open Energy Info (EERE)

About Bulk Transmission Geothermal Solar Tools Contribute Contact Us 6-AK-a Transportation Permit 06AKATransportationOversizeOverweight.pdf Click to View Fullscreen Permit...

16

RAPID/Roadmap/14-AK-a | Open Energy Information  

Open Energy Info (EERE)

RAPID Regulatory and Permitting Information Desktop Toolkit BETA RAPID Toolkit About Bulk Transmission Geothermal Solar Resources Contribute Contact Us 14-AK-a Nonpoint Source...

17

Solasta aka The Eagle Axis | Open Energy Information  

Open Energy Info (EERE)

Eagle Axis Jump to: navigation, search Name: Solasta (aka The Eagle Axis) Place: Newton, Massachusetts Zip: 2458 Sector: Efficiency, Solar Product: Start-up planning to produce...

18

Solar Self Help Inc aka Light Energy Systems | Open Energy Information  

Open Energy Info (EERE)

aka Light Energy Systems Jump to: navigation, search Name: Solar Self Help Inc. (aka Light Energy Systems) Place: Concord, California Sector: Solar Product: California-based...

19

RAPID/Roadmap/1-AK-a | Open Energy Information  

Open Energy Info (EERE)

Under AS 38.04.060, the DNR is required to prepare and maintain current statewide inventory of all state land and water for resources and other values. 1-AK-a.4 - Prepare...

20

RAPID/Roadmap/20-AK-a | Open Energy Information  

Open Energy Info (EERE)

operations will commence so that a representative of the commission can witness the operations. (20 AAC 25.112(h)). 20-AK-a.4 - Conduct Plugging or Abandonment Operation...

Note: This page contains sample records for the topic "blade aka sinoma" 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

Conserval aka SolarWall | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search Name: Conserval (aka SolarWall) Place: Toronto, Ontario, Canada Zip: M3J2N5 Sector: Solar Product: Makes solar passive heating and cooling...

22

Ceramic blade attachment system  

DOE Patents (OSTI)

A retainer ring is arranged to mount turbine blades to a turbine disk so that aerodynamic forces produced by a gas turbine engine are transferred from the turbine blades to the turbine disk to cause the turbine blades and turbine disk to rotate, but so that centrifugal forces of the turbine blades resulting from the rotation of the turbine blades and turbine disk are not transferred from the turbine blades to the turbine disk. 6 figures.

Boyd, G.L.

1995-04-11T23:59:59.000Z

23

Ceramic blade attachment system  

DOE Patents (OSTI)

A retainer ring is arranged to mount turbine blades to a turbine disk so that aerodynamic forces produced by a gas turbine engine are transferred from the turbine blades to the turbine disk to cause the turbine blades and turbine disk to rotate, but so that centrifugal forces of the turbine blades resulting from the rotation of the turbine blades and turbine disk are not transferred from the turbine blades to the turbine disk.

Boyd, Gary L. (Alpine, CA)

1995-01-01T23:59:59.000Z

24

Array Technologies Inc aka Wattsun | Open Energy Information  

Open Energy Info (EERE)

Technologies Inc aka Wattsun Technologies Inc aka Wattsun Jump to: navigation, search Name Array Technologies Inc (aka Wattsun) Place Albuquerque,, New Mexico Zip 87107 Sector Solar Product Manufactures the Wattsun Solar Tracker, a sun-tracking mounting system for PV modules. Coordinates 35.08418°, -106.648639° 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":35.08418,"lon":-106.648639,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

25

Thermal Product Solutions aka Kayex | Open Energy Information  

Open Energy Info (EERE)

Product Solutions aka Kayex Product Solutions aka Kayex Jump to: navigation, search Name Thermal Product Solutions (aka Kayex) Place Rochester, New York Zip 14624 Product Makes industrial ovens and furnaces; division Kayex develops and manufactures crystal growing equipment for the semiconductor and PV industry. Coordinates 43.1555°, -77.616033° 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":43.1555,"lon":-77.616033,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

26

Nippon Mining Holdings Inc aka Shinnikko | Open Energy Information  

Open Energy Info (EERE)

Mining Holdings Inc aka Shinnikko Mining Holdings Inc aka Shinnikko Jump to: navigation, search Name Nippon Mining Holdings Inc (aka Shinnikko) Place Tokyo, Japan Zip 105-0001 Product Japanese holding company engaged in oil, metals, and electronics businesses. Coordinates 35.670479°, 139.740921° 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":35.670479,"lon":139.740921,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

27

Parke Panda Corporation aka Parke Industries | Open Energy Information  

Open Energy Info (EERE)

Panda Corporation aka Parke Industries Panda Corporation aka Parke Industries Jump to: navigation, search Name Parke Panda Corporation (aka Parke Industries) Place Glendora, California Zip 91740 Product A licensed, bonded, and fully insured C-10 design/build contractor. Coordinates 39.83977°, -75.074694° 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":39.83977,"lon":-75.074694,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

28

Selsam Innovations aka Selsam Superturbine | Open Energy Information  

Open Energy Info (EERE)

Selsam Innovations aka Selsam Superturbine Selsam Innovations aka Selsam Superturbine Jump to: navigation, search Name Selsam Innovations (aka Selsam Superturbine) Place Fullerton, California Zip 92833 Sector Wind energy Product Multiple rotors wind turbine designer. Coordinates 46.16041°, -98.420506° 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":46.16041,"lon":-98.420506,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

29

Seattle Biodiesel aka Seattle BioFuels | Open Energy Information  

Open Energy Info (EERE)

Seattle Biodiesel aka Seattle BioFuels Seattle Biodiesel aka Seattle BioFuels Jump to: navigation, search Name Seattle Biodiesel (aka Seattle BioFuels) Place Seattle, Washington Sector Renewable Energy Product Subsidiary of Imperium Renewables which operates the 19m liter Seattle biodiesel plant. Coordinates 47.60356°, -122.329439° 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":47.60356,"lon":-122.329439,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

30

Mepsolar AG aka Munich Energy Partners | Open Energy Information  

Open Energy Info (EERE)

Mepsolar AG aka Munich Energy Partners Mepsolar AG aka Munich Energy Partners Jump to: navigation, search Name Mepsolar AG (aka Munich Energy Partners) Place Munich, Germany Zip 81829 Product Develops utility scale PV projects in Spain and Bulgaria and plans also to launch a PV direct selling business for residential customers. Coordinates 48.136415°, 11.577531° 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":48.136415,"lon":11.577531,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

31

T E C Center Inc aka TEC Incubator Center | Open Energy Information  

Open Energy Info (EERE)

E C Center Inc aka TEC Incubator Center Jump to: navigation, search Name: T.E.C. Center Inc. (aka TEC Incubator Center) Place: United States Sector: Services Product: General...

32

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)...

33

Henan Mingdu Wind Power Co Ltd aka He Nan Ming Du Feng Dian Limited...  

Open Energy Info (EERE)

Mingdu Wind Power Co Ltd aka He Nan Ming Du Feng Dian Limited Company Jump to: navigation, search Name: Henan Mingdu Wind Power Co Ltd (aka He Nan Ming Du Feng Dian Limited...

34

China Solar Power CSP aka General Solar Power Yantai Co Ltd ...  

Open Energy Info (EERE)

CSP aka General Solar Power Yantai Co Ltd Jump to: navigation, search Name: China Solar Power (CSP) (aka General Solar Power Yantai Co Ltd) Place: China Sector: Solar Product: A...

35

Apricus Solar Co Ltd aka Focus Technology Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Ltd aka Focus Technology Co Ltd Ltd aka Focus Technology Co Ltd Jump to: navigation, search Name Apricus Solar Co Ltd (aka Focus Technology Co Ltd) Place Nanjing, Jiangsu Province, China Zip 210061 Sector Solar Product Designs, manufactures and exports solar tube thermal solar collectors, solar storage tanks, waste heat recovery systems, solar controllers and related components. References Apricus Solar Co Ltd (aka Focus Technology 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. Apricus Solar Co Ltd (aka Focus Technology Co Ltd) is a company located in Nanjing, Jiangsu Province, China . References ↑ "Apricus Solar Co Ltd (aka Focus Technology Co Ltd)" Retrieved from "http://en.openei.org/w/index.php?title=Apricus_Solar_Co_Ltd_aka_Focus_Technology_Co_Ltd&oldid=342253

36

Heliocentris Energiesysteme GmbH aka Heliocentris Fuel Cells AG | Open  

Open Energy Info (EERE)

Heliocentris Energiesysteme GmbH aka Heliocentris Fuel Cells AG Heliocentris Energiesysteme GmbH aka Heliocentris Fuel Cells AG Jump to: navigation, search Name Heliocentris Energiesysteme GmbH (aka Heliocentris Fuel Cells AG) Place Berlin, Germany Zip 12489 Product Specialised in fuel cell demonstration applications for education and outreach. References Heliocentris Energiesysteme GmbH (aka Heliocentris Fuel Cells AG)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Heliocentris Energiesysteme GmbH (aka Heliocentris Fuel Cells AG) is a company located in Berlin, Germany . References ↑ "[ Heliocentris Energiesysteme GmbH (aka Heliocentris Fuel Cells AG)]" Retrieved from "http://en.openei.org/w/index.php?title=Heliocentris_Energiesysteme_GmbH_aka_Heliocentris_Fuel_Cells_AG&oldid=346452"

37

H2 Hydrogen Hungary Ltd aka Integral Energy | Open Energy Information  

Open Energy Info (EERE)

Hydrogen Hungary Ltd aka Integral Energy Hydrogen Hungary Ltd aka Integral Energy Jump to: navigation, search Name H2 Hydrogen Hungary Ltd (aka Integral Energy) Place Ipoly u 1/A, Hungary Zip H-6000 Sector Solar Product Owns an empty factory in Hungary, which it plans to use to make heat pumps and assemble solar panels. References H2 Hydrogen Hungary Ltd (aka Integral Energy)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. H2 Hydrogen Hungary Ltd (aka Integral Energy) is a company located in Ipoly u 1/A, Hungary . References ↑ "[ H2 Hydrogen Hungary Ltd (aka Integral Energy)]" Retrieved from "http://en.openei.org/w/index.php?title=H2_Hydrogen_Hungary_Ltd_aka_Integral_Energy&oldid=346329

38

Asia Silicon Qinghai Co Ltd aka Asia Si Material | Open Energy Information  

Open Energy Info (EERE)

Qinghai Co Ltd aka Asia Si Material Qinghai Co Ltd aka Asia Si Material Jump to: navigation, search Name Asia Silicon (Qinghai) Co Ltd (aka Asia Si Material) Place Xining, Qinghai Province, China Zip 810007 Product Developing a 6,000-tonne polysilicon factory in Xining, Qinghai Province, supplier to Suntech. References Asia Silicon (Qinghai) Co Ltd (aka Asia Si Material)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Asia Silicon (Qinghai) Co Ltd (aka Asia Si Material) is a company located in Xining, Qinghai Province, China . References ↑ "Asia Silicon (Qinghai) Co Ltd (aka Asia Si Material)" Retrieved from "http://en.openei.org/w/index.php?title=Asia_Silicon_Qinghai_Co_Ltd_aka_Asia_Si_Material&oldid=342359"

39

Rudd Klein Alternative Energy Ventures LLC aka Phoenix Energy Fund | Open  

Open Energy Info (EERE)

Rudd Klein Alternative Energy Ventures LLC aka Phoenix Energy Fund Rudd Klein Alternative Energy Ventures LLC aka Phoenix Energy Fund Jump to: navigation, search Name Rudd-Klein Alternative Energy Ventures LLC (aka Phoenix Energy Fund) Place New York, New York Sector Solar Product New York venture capital firm, specialising in early-stage solar companies. References Rudd-Klein Alternative Energy Ventures LLC (aka Phoenix Energy Fund)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Rudd-Klein Alternative Energy Ventures LLC (aka Phoenix Energy Fund) is a company located in New York, New York . References ↑ "Rudd-Klein Alternative Energy Ventures LLC (aka Phoenix Energy Fund)" Retrieved from "http://en.openei.org/w/index.php?title=Rudd_Klein_Alternative_Energy_Ventures_LLC_aka_Phoenix_Energy_Fund&oldid=350507"

40

NBT Baicheng New Energy Development aka Ao Lu Jia New Energy Development |  

Open Energy Info (EERE)

NBT Baicheng New Energy Development aka Ao Lu Jia New Energy Development NBT Baicheng New Energy Development aka Ao Lu Jia New Energy Development Jump to: navigation, search Name NBT (Baicheng) New Energy Development (aka Ao Lu Jia New Energy Development) Place China Sector Wind energy Product China-based Sino-Norwegian joint venture that develops wind projects. References NBT (Baicheng) New Energy Development (aka Ao Lu Jia New Energy Development)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. NBT (Baicheng) New Energy Development (aka Ao Lu Jia New Energy Development) is a company located in China . References ↑ "[ NBT (Baicheng) New Energy Development (aka Ao Lu Jia New Energy Development)]" Retrieved from "http://en.openei.org/w/index.php?title=NBT_Baicheng_New_Energy_Development_aka_Ao_Lu_Jia_New_Energy_Development&oldid=349122

Note: This page contains sample records for the topic "blade aka sinoma" 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

Millennium Electric TOU Ltd aka Millennium Solar EIG Solar | Open Energy  

Open Energy Info (EERE)

Electric TOU Ltd aka Millennium Solar EIG Solar Electric TOU Ltd aka Millennium Solar EIG Solar Jump to: navigation, search Name Millennium Electric TOU Ltd (aka Millennium Solar, EIG Solar) Place Israel Zip 43650 Sector Efficiency, Solar Product Israeli manufacturer of PV modules, incorporating solar concentrators to increase cell efficiency. References Millennium Electric TOU Ltd (aka Millennium Solar, EIG Solar)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Millennium Electric TOU Ltd (aka Millennium Solar, EIG Solar) is a company located in Israel . References ↑ "[ Millennium Electric TOU Ltd (aka Millennium Solar, EIG Solar)]" Retrieved from "http://en.openei.org/w/index.php?title=Millennium_Electric_TOU_Ltd_aka_Millennium_Solar_EIG_Solar&oldid=348837

42

GCL Solar Energy Technology Holdings formerly GCL Silicon aka Jiangsu  

Open Energy Info (EERE)

Solar Energy Technology Holdings formerly GCL Silicon aka Jiangsu Solar Energy Technology Holdings formerly GCL Silicon aka Jiangsu Zhongneng Polysilicon Jump to: navigation, search Name GCL Solar Energy Technology Holdings (formerly GCL Silicon, aka Jiangsu Zhongneng Polysilicon) Place Xuzhou, Jiangsu Province, China Zip 221131 Sector Solar Product China-based solar grade polysilicon producer. Coordinates 34.255489°, 117.190201° 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":34.255489,"lon":117.190201,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

43

China Solar Energy Ltd Tianpu Xianxing Group aka Beijing Universal  

Open Energy Info (EERE)

Tianpu Xianxing Group aka Beijing Universal Tianpu Xianxing Group aka Beijing Universal Antecedence Jump to: navigation, search Name China Solar Energy Ltd (Tianpu Xianxing Group, aka Beijing Universal Antecedence) Place Beijing, Beijing Municipality, China Zip 102612 Sector Buildings, Solar Product Manufacturer of buildings and leisure centres with integrated solar passive heating and cooling. 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":""}]}

44

Shenyang Huachuang Wind Energy Corporation HCWE aka China Creative Wind  

Open Energy Info (EERE)

Huachuang Wind Energy Corporation HCWE aka China Creative Wind Huachuang Wind Energy Corporation HCWE aka China Creative Wind Energy Co Ltd Jump to: navigation, search Name Shenyang Huachuang Wind Energy Corporation (HCWE) (aka China Creative Wind Energy Co Ltd) Place Shenyang, Liaoning Province, China Sector Wind energy Product A company engaged in 1.5MW wind turbine manufacturing. It is also known as China Creative Wind Energy Co Ltd. 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":""}]}

45

CHINT Solar Co Ltd aka Astronergy | Open Energy Information  

Open Energy Info (EERE)

CHINT Solar Co Ltd aka Astronergy CHINT Solar Co Ltd aka Astronergy Jump to: navigation, search Name CHINT Solar Co Ltd (aka Astronergy) Place Hangzhou, Zhejiang Province, China Zip 310052 Sector Solar Product A subsidiary company of CHINT Group, producing multicrystalline and monocrystalline solar cells, modules, thin-film solar cells and PV application products. Coordinates 30.252501°, 120.165024° 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":30.252501,"lon":120.165024,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

46

SolarIsland aka Yinghua Taian Dazheng Hengyuan Solar Technology Co Ltd |  

Open Energy Info (EERE)

SolarIsland aka Yinghua Taian Dazheng Hengyuan Solar Technology Co Ltd SolarIsland aka Yinghua Taian Dazheng Hengyuan Solar Technology Co Ltd Jump to: navigation, search Name SolarIsland (aka Yinghua, Taian Dazheng Hengyuan Solar Technology Co Ltd) Place Nanguan, Shandong Province, China Zip 271000 Sector Solar Product Manufacturer and exporter of solar passive water heating systems and PV-powered solar road lighting, torches and lamps. References SolarIsland (aka Yinghua, Taian Dazheng Hengyuan Solar Technology 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. SolarIsland (aka Yinghua, Taian Dazheng Hengyuan Solar Technology Co Ltd) is a company located in Nanguan, Shandong Province, China . References ↑ "[ SolarIsland (aka Yinghua, Taian Dazheng Hengyuan Solar

47

United Solar Systems Corp USSC aka Bekaert ECD Solar Systems LLC | Open  

Open Energy Info (EERE)

Solar Systems Corp USSC aka Bekaert ECD Solar Systems LLC Solar Systems Corp USSC aka Bekaert ECD Solar Systems LLC Jump to: navigation, search Name United Solar Systems Corp (USSC) (aka Bekaert ECD Solar Systems LLC) Place Middletown Springs, Vermont Zip VT 05757 Product Originally a JV between ECD and Bekaert to manufacture, market and sell photovoltaic products and systems References United Solar Systems Corp (USSC) (aka Bekaert ECD Solar Systems LLC)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. United Solar Systems Corp (USSC) (aka Bekaert ECD Solar Systems LLC) is a company located in Middletown Springs, Vermont . References ↑ "[ United Solar Systems Corp (USSC) (aka Bekaert ECD Solar Systems LLC)]"

48

GRR/Section 18-AK-a - Storage Tank Registration | Open Energy Information  

Open Energy Info (EERE)

GRR/Section 18-AK-a - Storage Tank Registration GRR/Section 18-AK-a - Storage Tank Registration < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 18-AK-a - Storage Tank Registration 18AKA - StorageTankRegistration (1).pdf Click to View Fullscreen Contact Agencies Alaska Department of Environmental Conservation Regulations & Policies AS 46.03.380 As 46.03.385 18 AAC 78 Underground Storage Tanks Triggers None specified Click "Edit With Form" above to add content 18AKA - StorageTankRegistration (1).pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative Any project that requires installation or operation of a storage tank must

49

GRR/Section 6-AK-a - Transportation | Open Energy Information  

Open Energy Info (EERE)

GRR/Section 6-AK-a - Transportation GRR/Section 6-AK-a - Transportation < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 6-AK-a - Transportation 06AKATransportationOversizeOverweight.pdf Click to View Fullscreen Contact Agencies Alaska Department of Transportation and Public Facilities Regulations & Policies 17 AAC 25: Operations, Wheeled Vehicles Triggers None specified Click "Edit With Form" above to add content 06AKATransportationOversizeOverweight.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative _ 6-AK-a.1 to 6-AK-a.2 - Does the Load Exceed the Size or Weight Regulations for State Highway Transportation Established by 17 AAC 25?

50

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.

51

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

52

Cooled snubber structure for turbine blades  

DOE Patents (OSTI)

A turbine blade assembly in a turbine engine. The turbine blade assembly includes a turbine blade and a first snubber structure. The turbine blade includes an internal cooling passage containing cooling air. The first snubber structure extends outwardly from a sidewall of the turbine blade and includes a hollow interior portion that receives cooling air from the internal cooling passage of the turbine blade.

Mayer, Clinton A; Campbell, Christian X; Whalley, Andrew; Marra, John J

2014-04-01T23:59:59.000Z

53

Wootz Damascus steel blades  

SciTech Connect

Wootz Damascus steel blades contain surface patterns produced by bands of cementite particles which are generated in situ as the blades are forged from small ingots. A process for making these blades has recently been developed which involves making ingots in a gas-fired furnace followed by forging to blade shapes. This study presents a series of additional experiments which provide strong evidence that the mechanism responsible for the formation of the aligned cementite bands is similar to the mechanism that produces banded hypoeutectoid steels. That mechanism attributes the selective formation of ferrite bands to microsegregated alloying elements. The results of this study show that the cementite bands will form in ultraclean hypereutectoid steels (P and S levels <0.003 wt. %) by the addition of small amounts of carbide-forming elements V, Cr, and Ti at a combined level of <0.02 wt. %. The results present strong evidence that the cementite bands are formed by a selective coarsening of cementite particles during the thermal cycling of the forging process. The particle coarsening is induced to occur preferentially in the interdendritic regions of the alloys by the very small additions of the carbide-forming elements.

Verhoeven, J.D.; Gibson, E.D. [Ames Lab., IA (United States)] [Ames Lab., IA (United States); Pendray, A.H. [ABS Master Bladesmith, Williston, FL (United States)] [ABS Master Bladesmith, Williston, FL (United States)

1996-07-01T23:59:59.000Z

54

GRR/Section 9-AK-a - Alaska Environmental Process | Open Energy Information  

Open Energy Info (EERE)

GRR/Section 9-AK-a - Alaska Environmental Process GRR/Section 9-AK-a - Alaska Environmental Process < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 9-AK-a - Alaska Environmental Process 09AKAStateEnvironmentalProcess (1).pdf Click to View Fullscreen Contact Agencies Alaska Department of Natural Resources Regulations & Policies AS 38.05.035: Powers & Duties of ADNR Director AS 38.05.082: Leases for Shore Fisheries AS 38.05.115: Conditions of Sale AS 38.05.850: Permits AS 38.05.945: Notice AS 38.05.946: Hearings Triggers None specified Click "Edit With Form" above to add content 09AKAStateEnvironmentalProcess (1).pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range.

55

GRR/Section 8-AK-a - Transmission | Open Energy Information  

Open Energy Info (EERE)

8-AK-a - Transmission 8-AK-a - Transmission < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 8-AK-a - Transmission 08AKATransmission.pdf Click to View Fullscreen Triggers None specified Click "Edit With Form" above to add content 08AKATransmission.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative Under the Alaska Public Utilities Regulatory Act, transmission is included in Alaska's regulation of public utilities. According to AS 42.05.990(5), "public utility" or "utility" includes every corporation whether public, cooperative, or otherwise, company, individual, or association of

56

Coeur d Alene Fiber Fuels Inc aka Atlas | Open Energy Information  

Open Energy Info (EERE)

Coeur d Alene Fiber Fuels Inc aka Atlas Coeur d Alene Fiber Fuels Inc aka Atlas Jump to: navigation, search Name Coeur d' Alene Fiber Fuels, Inc. (aka Atlas) Place Hauser, Idaho Zip ID 83854 Product Coeur dâ€(tm)Alene Fiber manufactures and markets processed wood fuel. Coordinates 47.74743°, -117.014694° 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":47.74743,"lon":-117.014694,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

57

GRR/Section 14-AK-a - Nonpoint Source Pollution | Open Energy Information  

Open Energy Info (EERE)

GRR/Section 14-AK-a - Nonpoint Source Pollution GRR/Section 14-AK-a - Nonpoint Source Pollution < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 14-AK-a - Nonpoint Source Pollution 14AKANonpointSourcePollution.pdf Click to View Fullscreen Contact Agencies Alaska Department of Environmental Conservation Regulations & Policies Alaska Statutes Alaska Administrative Code Triggers None specified Click "Edit With Form" above to add content 14AKANonpointSourcePollution.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative Alaska's Nonpoint Source Water Pollution Control Strategy is a statewide plan for protecting Alaska's natural resources from polluted runoff also

58

GRR/Section 19-AK-a - Water Access and Water Rights Issues | Open Energy  

Open Energy Info (EERE)

GRR/Section 19-AK-a - Water Access and Water Rights Issues GRR/Section 19-AK-a - Water Access and Water Rights Issues < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 19-AK-a - Water Access and Water Rights Issues 19AKAWaterAccessWaterRights.pdf Click to View Fullscreen Contact Agencies Alaska Department of Natural Resources Alaska Division of Mining Land and Water Regulations & Policies Alaska Water Use Act Alaska Statutes Alaska Administrative Code Triggers None specified Click "Edit With Form" above to add content 19AKAWaterAccessWaterRights.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative In Alaska, water is declared a public resource belonging to the people of

59

GRR/Section 11-AK-a - State Cultural Considerations | Open Energy  

Open Energy Info (EERE)

1-AK-a - State Cultural Considerations 1-AK-a - State Cultural Considerations < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 11-AK-a - State Cultural Considerations 11AKAStateCulturalConsiderations (2).pdf Click to View Fullscreen Contact Agencies Alaska Department of Natural Resources Regulations & Policies AS 41.35.060: Power to Acquire AS 41.35.070: Preservation of Historic Resources AS 41.35.090: Notice AS 41.35.100: Excavation Triggers None specified Click "Edit With Form" above to add content 11AKAStateCulturalConsiderations (2).pdf 11AKAStateCulturalConsiderations (2).pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative It is the policy of the State of Alaska to preserve and protect the

60

GRR/Section 3-AK-a - State Competitive Mineral Leasing Process | Open  

Open Energy Info (EERE)

GRR/Section 3-AK-a - State Competitive Mineral Leasing Process GRR/Section 3-AK-a - State Competitive Mineral Leasing Process < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 3-AK-a - State Competitive Mineral Leasing Process 03AKAStateCompetitiveMineralLeasingProcess.pdf Click to View Fullscreen Contact Agencies Alaska Department of Natural Resources Alaska Division of Oil and Gas Regulations & Policies Alaska Land Act: AS 38.05 Alaska Statutes Alaska Administrative Code Triggers None specified Click "Edit With Form" above to add content 03AKAStateCompetitiveMineralLeasingProcess.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range.

Note: This page contains sample records for the topic "blade aka sinoma" 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

GRR/Section 5-AK-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

GRR/Section 5-AK-a - Drilling and Well Development GRR/Section 5-AK-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-AK-a - Drilling and Well Development 05AKADrillingWellDevelopment.pdf Click to View Fullscreen Contact Agencies Alaska Oil and Gas Conservation Commission Alaska Department of Natural Resources Regulations & Policies Alaska Statutes Alaska Administrative Code Triggers None specified Click "Edit With Form" above to add content 05AKADrillingWellDevelopment.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative All wells drilled in search or in support of the recovery of geothermal

62

GRR/Section 15-AK-a - Air Quality Assessment Process | Open Energy  

Open Energy Info (EERE)

GRR/Section 15-AK-a - Air Quality Assessment Process GRR/Section 15-AK-a - Air Quality Assessment Process < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 15-AK-a - Air Quality Assessment Process 15AKAAirQualityAssessmentProcess.pdf Click to View Fullscreen Contact Agencies Alaska Department of Environmental Conservation Regulations & Policies Alaska Statutes Alaska Statute Title 46 Alaska Administrative Code 18 AAC 50 Air Quality Regulations 40 CFR 71 Operating Permits Triggers None specified Click "Edit With Form" above to add content 15AKAAirQualityAssessmentProcess.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range.

63

GRR/Section 20-AK-a - Well Abandonment Process | Open Energy Information  

Open Energy Info (EERE)

20-AK-a - Well Abandonment Process 20-AK-a - Well Abandonment Process < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 20-AK-a - Well Abandonment Process 20AKAWellAbandonmentProcess.pdf Click to View Fullscreen Contact Agencies Alaska Oil and Gas Conservation Commission Regulations & Policies 20 AAC 25.105 20 AAC 25.112 Triggers None specified Click "Edit With Form" above to add content 20AKAWellAbandonmentProcess.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative This flowchart illustrates the process for abandoning wells in the state of Alaska. The Alaska Oil and Gas Conservation Commission ("commission")

64

Ecosystem Solar Electric Corp aka Solar MW Energy Inc | Open Energy  

Open Energy Info (EERE)

Solar Electric Corp aka Solar MW Energy Inc Solar Electric Corp aka Solar MW Energy Inc Jump to: navigation, search Name Ecosystem Solar Electric Corp, aka Solar MW Energy Inc Place Ontario, California Zip 91761 Product Plans to develop STEG plants in the Mojave desert. Coordinates 34.06457°, -117.647809° 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":34.06457,"lon":-117.647809,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

65

Jiangxi Solar PV Corp JSPV aka Solar PV Corporation | Open Energy  

Open Energy Info (EERE)

Solar PV Corp JSPV aka Solar PV Corporation Solar PV Corp JSPV aka Solar PV Corporation Jump to: navigation, search Name Jiangxi Solar PV Corp (JSPV, aka Solar PV Corporation ) Place Xinyu, Jiangxi Province, China Zip 338004 Sector Solar Product Xinyu-based producer of solar cells Coordinates 27.804001°, 114.923317° 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":27.804001,"lon":114.923317,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

66

Jiangsu Linyang Solarfun Co Ltd aka Solarfun Power Holdings | Open Energy  

Open Energy Info (EERE)

Linyang Solarfun Co Ltd aka Solarfun Power Holdings Linyang Solarfun Co Ltd aka Solarfun Power Holdings Jump to: navigation, search Name Jiangsu Linyang Solarfun Co Ltd (aka Solarfun Power Holdings) Place Qidong, Jiangsu Province, China Zip 226200 Product Chinese manufacturer of mono and multicrystalline PV cells and modules. Coordinates 31.811399°, 121.667503° 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":31.811399,"lon":121.667503,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

67

Ceramic blade with tip seal  

DOE Patents (OSTI)

The present gas turbine engine includes a disc assembly defining a disc having a plurality of blades attached thereto. The disc has a preestablished rate of thermal expansion and the plurality of blades have a preestablished rate of thermal expansion being less than the preestablished rate of thermal expansion of the disc. A shroud assembly is attached to the gas turbine engine and is spaced from the plurality of blades a preestablished distance forming an interface there between. Positioned in the interface is a seal having a preestablished rate of thermal expansion being generally equal to the rate of thermal expansion of the plurality of blades. 4 figs.

Glezer, B.; Bhardwaj, N.K.; Jones, R.B.

1997-08-05T23:59:59.000Z

68

Sandia National Laboratories: Radar Friendly Blades  

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

MitigationRadar Friendly Blades Radar Friendly Blades Some wind farms have the potential to cause interference with the normal operation of radar systems used for security, weather...

69

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...

70

Optical Blade Position Tracking System Test  

SciTech Connect

The Optical Blade Position Tracking System Test measures the blade deflection along the span of the blade using simple off-the-shelf infrared security cameras along with blade-mounted retro-reflective tape and video image processing hardware and software to obtain these measurements.

Fingersh, L. J.

2006-01-01T23:59:59.000Z

71

GRR/Section 17-AK-a - Aesthetic Resource Assessment | Open Energy  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » GRR/Section 17-AK-a - Aesthetic Resource Assessment < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 17-AK-a - Aesthetic Resource Assessment 17AKAAestheticResourceAssessment.pdf Click to View Fullscreen Triggers None specified Click "Edit With Form" above to add content 17AKAAestheticResourceAssessment.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative

72

GRR/Section 4-AK-a - State Exploration Process | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » GRR/Section 4-AK-a - State Exploration Process < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 4-AK-a - State Exploration Process 04AKAStateExplorationProcess.pdf Click to View Fullscreen Contact Agencies Alaska Department of Natural Resources Alaska Division of Oil and Gas Alaska Oil and Gas Conservation Commission Regulations & Policies Alaska Statutes Alaska Administrative Code Triggers None specified Click "Edit With Form" above to add content 04AKAStateExplorationProcess.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range.

73

GRR/Section 12-AK-a - Flora & Fauna Considerations | Open Energy  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » GRR/Section 12-AK-a - Flora & Fauna Considerations < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 12-AK-a - Flora & Fauna Considerations 12AKAFloraFaunaConsiderations (1).pdf Click to View Fullscreen Contact Agencies Alaska Department of Fish and Game Regulations & Policies AS 16.05.841: Fishways AS 16.05.871: Protection of Fish and Game AS 16.20: Conservation and Protection 5 AAC 95.011: Waters Important to Anadromous Fish Triggers None specified Click "Edit With Form" above to add content 12AKAFloraFaunaConsiderations (1).pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range.

74

FRAC-STIM: A Physics-Based Fracture Simulation, /reservoir Flow and Heat Transport Simulator(aka FALCON)  

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

FRAC-STIM: A Physics-Based Fracture Simulation, /reservoir Flow and Heat Transport Simulator(aka FALCON) presentation at the April 2013 peer review meeting held in Denver, Colorado.

75

Bazhou Deli Solar Energy Heating Co Ltd aka Deli Solar PRC | Open Energy  

Open Energy Info (EERE)

Bazhou Deli Solar Energy Heating Co Ltd aka Deli Solar PRC Bazhou Deli Solar Energy Heating Co Ltd aka Deli Solar PRC Jump to: navigation, search Name Bazhou Deli Solar Energy Heating Co Ltd (aka Deli Solar (PRC)) Place Beijing, Beijing Municipality, China Zip 65700 Sector Biomass, Solar Product Seller of solar thermal water heating systems, PV-powered lamps and small-scale biomass space heating devices. 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":""}]}

76

China Glass Solar aka CG Solar formerly Weihai Bluestar Terra Photovoltaic  

Open Energy Info (EERE)

aka CG Solar formerly Weihai Bluestar Terra Photovoltaic aka CG Solar formerly Weihai Bluestar Terra Photovoltaic Co Ltd Jump to: navigation, search Name China Glass Solar (aka CG Solar, formerly Weihai Bluestar Terra Photovoltaic Co Ltd) Place Weihai, Shandong Province, China Zip 264205 Sector Solar Product A Sino-US joint venture producing a-si thin-film solar cells Coordinates 37.497898°, 122.114731° 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":37.497898,"lon":122.114731,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

77

TrendSetter Solar Products Inc aka Trendsetter Industries formerly Six  

Open Energy Info (EERE)

TrendSetter Solar Products Inc aka Trendsetter Industries formerly Six TrendSetter Solar Products Inc aka Trendsetter Industries formerly Six River Solar Jump to: navigation, search Name TrendSetter Solar Products Inc (aka Trendsetter Industries, formerly Six River Solar) Place Fairhaven, California Zip 95564 Sector Solar Product Manufacturer of solar hot water heating and storage systems. Coordinates 41.63548°, -70.903856° 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":41.63548,"lon":-70.903856,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

78

Shanghai Comtec Solar Technology Ltd aka Comtec Solar System Group Ltd |  

Open Energy Info (EERE)

Comtec Solar Technology Ltd aka Comtec Solar System Group Ltd Comtec Solar Technology Ltd aka Comtec Solar System Group Ltd Jump to: navigation, search Name Shanghai Comtec Solar Technology Ltd (aka Comtec Solar System Group Ltd) Place Shanghai, Shanghai Municipality, China Zip 201300 Sector Solar Product Chinese manufacturer of monocrystalline silicon ingots and wafers for solar-use. Coordinates 31.247709°, 121.472618° 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":31.247709,"lon":121.472618,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

79

PVM Lines and Services LLC aka PVML Photovoltaics | Open Energy Information  

Open Energy Info (EERE)

PVM Lines and Services LLC aka PVML Photovoltaics PVM Lines and Services LLC aka PVML Photovoltaics Jump to: navigation, search Name PVM Lines and Services LLC (aka PVML Photovoltaics) Place Princeton, New Jersey Zip 8540 Product US-based equipment manufacturer for ingots, wafers, turkey cell and turnkey and semi-automated module production. Coordinates 43.85105°, -89.129909° 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":43.85105,"lon":-89.129909,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

80

Blade Testing at NREL's National Wind Technology Center (NWTC) (Presentation)  

SciTech Connect

Presentation of Blade Testing at NREL's National Wind Technology Center for the 2010 Sandia National Laboratories Blade Testing Workshop.

Hughes, S.

2010-07-20T23:59:59.000Z

Note: This page contains sample records for the topic "blade aka sinoma" 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

Turbine blade tip gap reduction system  

SciTech Connect

A turbine blade sealing system for reducing a gap between a tip of a turbine blade and a stationary shroud of a turbine engine. The sealing system includes a plurality of flexible seal strips extending from a pressure side of a turbine blade generally orthogonal to the turbine blade. During operation of the turbine engine, the flexible seal strips flex radially outward extending towards the stationary shroud of the turbine engine, thereby reducing the leakage of air past the turbine blades and increasing the efficiency of the turbine engine.

Diakunchak, Ihor S.

2012-09-11T23:59:59.000Z

82

Articulated limiter blade for a tokamak fusion reactor  

DOE Patents (OSTI)

A limiter blade for a large tokomak fusion reactor includes three articulated blade sections for enabling the limiter blade to be adjusted for plasmas of different sizes. Each blade section is formed of a rigid backing plate carrying graphite tiles coated with titanium carbide, and the limiter blade forms a generally elliptic contour in both the poloidal and toroidal directions to uniformly distribute the heat flow to the blade. The limiter blade includes a central blade section movable along the major radius of the vacuum vessel, and upper and lower pivotal blade sections which may be pivoted by linear actuators having rollers held to the back surface of the pivotal blade sections.

Doll, D.W.

1982-10-21T23:59:59.000Z

83

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

84

Introduction to Network Analysis 1 Spectral Methods (aka Algebraic Graph Theory, see Chapter 14 in *BE+ "Network analysis")  

E-Print Network (OSTI)

Introduction to Network Analysis 1 Spectral Methods (aka Algebraic Graph Theory, see Chapter 14 in *BE+ "Network analysis") Three main objects of interest: adjacency matrix, Laplacian, and normalized to Network Analysis 12 original reverse Cuthill-McKee spectral Matlab demo #12;Introduction to Network

Safro, Ilya

85

Introduction to Network Science 1 Spectral Methods (aka Algebraic Graph Theory, see Chapter 14 in [BE] "Network analysis")  

E-Print Network (OSTI)

Introduction to Network Science 1 Spectral Methods (aka Algebraic Graph Theory, see Chapter 14 #12;Introduction to Network Science 2 #12;Introduction to Network Science 3 Homework: Prove any 2 out of 3 in Theorem 3 (submit by 3/6/2014) #12;Introduction to Network Science 4 There exists some nonzero

Safro, Ilya

86

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

87

Adaptor assembly for coupling turbine blades to rotor disks  

DOE Patents (OSTI)

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

Garcia-Crespo, Andres Jose; Delvaux, John McConnell

2014-09-23T23:59:59.000Z

88

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,...

89

The use of carbon fibers in wind turbine blade design: A SERI-8 blade example  

SciTech Connect

The benefit of introducing carbon fibers in a wind turbine blade was evaluated. The SERI-8 wind turbine blade was used as a baseline for study. A model of the blade strength and stiffness properties was created using the 3D-Beam code; the predicted geometry and structural properties were validated against available data and static test results. Different enhanced models, which represent different volumes of carbon fibers in the blade, were also studied for two design options: with and without bend-twist coupling. Studies indicate that hybrid blades have excellent structural properties compared to the all-glass SERI-8 blade. Recurring fabrication costs were also included in the study. The cost study highlights the importance of the labor-cost to material-cost ratio in the cost benefits and penalties of fabrication of a hybrid glass and carbon blade.

ONG,CHENG-HUAT; TSAI,STEPHEN W.

2000-03-01T23:59:59.000Z

90

Method of making a wooden wind turbine blade  

DOE Patents (OSTI)

A wooden wind turbine blade is formed by laminating wood veneer in a compression mold having the exact curvature needed for one side of the blade, following which the other side of the blade is ground flat along its length but twisted with respect to the blade axis. 8 figs.

Coleman, C.

1984-08-14T23:59:59.000Z

91

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

92

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/.

93

User's Guide to MBC3: Multi-Blade Coordinate Transformation Code for 3-Bladed Wind Turbine  

SciTech Connect

This guide explains how to use MBC3, a MATLAB-based script NREL developed to perform multi-blade coordinate transformation of system matrices for three-bladed wind turbines. In its current form, MBC3 can be applied to system matrices generated by FAST.2.

Bir, G. S.

2010-09-01T23:59:59.000Z

94

The SNL100-01 blade : carbon design studies for the Sandia 100-meter blade.  

SciTech Connect

A series of design studies to investigate the effect of carbon on blade weight and performance for large blades was performed using the Sandia 100-meter All-glass Baseline Blade design as a starting point. This document provides a description of the final carbon blade design, which is termed as SNL100-01. This report includes a summary of the design modifications applied to the baseline all-glass 100-meter design and a description of the NuMAD model files that are made publicly available. This document is intended primarily to be a companion document to the distribution of the NuMAD blade model files for SNL100-01.

Griffith, Daniel Todd

2013-02-01T23:59:59.000Z

95

Baoding Tianwei Wind Power Blade Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Tianwei Wind Power Blade Co Ltd Tianwei Wind Power Blade Co Ltd Jump to: navigation, search Name Baoding Tianwei Wind Power Blade Co Ltd Place Hebei Province, China Sector Wind energy Product Wind turbine blade maker. References Baoding Tianwei Wind Power Blade 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. Baoding Tianwei Wind Power Blade Co Ltd is a company located in Hebei Province, China . References ↑ "Baoding Tianwei Wind Power Blade Co Ltd" Retrieved from "http://en.openei.org/w/index.php?title=Baoding_Tianwei_Wind_Power_Blade_Co_Ltd&oldid=342529" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes Special pages

96

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

97

Transition length in turbine/compressor blade flows  

Science Journals Connector (OSTI)

...with compressor/turbine blades. The computation...governs the spike development in central cycles...characteristic of gas turbine blades in the course...preliminary design strategy. The theoretical...pursue the nonlinear development of the emitted...

2006-01-01T23:59:59.000Z

98

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

99

High-Resolution Simulations of Parallel BladeVortex Interactions  

E-Print Network (OSTI)

= perturbation pressure coefficient, p ps= 1 2 1U2 1 c = rotor blade chord p = instantaneous airfoil surface­vortex interaction computations Introduction A MAJOR source of rotorcraft noise is generated by the rotor blades on the rotor blades. BVI noise is especially important because it is known to propagate out

Alonso, Juan J.

100

User scripting on Android using BladeDroid Ravi Bhoraskar *  

E-Print Network (OSTI)

control over the app at all interesting points. 3 Status and Next Steps We have implemented BladeUser scripting on Android using BladeDroid Ravi Bhoraskar * , Dominic Langenegger* , Pingyang He to mobile applications. Using our tool, BladeDroid, users can write scripts that enable them to customize

Ernst, Michael

Note: This page contains sample records for the topic "blade aka sinoma" 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

DOEs New Large Blade Test Facility in Massachusetts Completes First Commercial Blade Tests  

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

Since opening its doors for business in May, the Wind Technology Testing Center (WTTC), in Boston, Massachusetts, has come up to full speed testing the long wind turbine blades produced for today's larger wind turbines.

102

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

103

An experimental investigation of turbine blade heat transfer and turbine blade trailing edge cooling  

E-Print Network (OSTI)

studies have investigated the fluid flow and heat transfer behavior in high Reynolds number flows. Blair [7,8] investigated the effect of grid generated turbulence on flat plate heat transfer. He showed that turbulent heat transfer coefficient in flow... AN EXPERIMENTAL INVESTIGATION OF TURBINE BLADE HEAT TRANSFER AND TURBINE BLADE TRAILING EDGE COOLING A Dissertation by JUNGHO CHOI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

Choi, Jungho

2005-02-17T23:59:59.000Z

104

iCons 2 Renewable Energy [NatSci 290IH (2) aka i2e] Spring 2013 Syllabus i2e Faculty Guides  

E-Print Network (OSTI)

1 iCons 2 Renewable Energy [NatSci 290IH (2) aka i2e] ­ Spring 2013 Syllabus i2e Faculty Guides Objectives: Students learn to ... in the context of Renewable Energy problems. 1. ... write effectively Trip: Campus Heating and Power (CHP) Thursday Feb 9: Work on Energy Flow Diagram for UMass Amherst

Auerbach, Scott M.

105

UMass Lowell Smoothing Out Wrinkles in Blade Manufacturing Process |  

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

UMass Lowell Smoothing Out Wrinkles in Blade Manufacturing Process UMass Lowell Smoothing Out Wrinkles in Blade Manufacturing Process UMass Lowell Smoothing Out Wrinkles in Blade Manufacturing Process August 4, 2010 - 2:04pm Addthis Researchers at the University of Massachusetts Lowell work on a wind blade project. | Photo courtesy of University of Massachusetts Lowell Researchers at the University of Massachusetts Lowell work on a wind blade project. | Photo courtesy of University of Massachusetts Lowell Stephen Graff Former Writer & editor for Energy Empowers, EERE A research team at the University of Massachusetts Lowell is ironing out the kinks in blade manufacturing to make way for safer, lighter and cheaper blades. The Wind Turbine Research Group (WTRG) at UMass Lowell has received $401,885 in American Recovery and Reinvestment Act funds to figure out

106

Turbine blade with contoured chamfered squealer tip  

DOE Patents (OSTI)

A squealer tip formed from a pressure side tip wall and a suction side tip wall extending radially outward from a tip of the turbine blade is disclosed. The pressure and suction side tip walls may be positioned along the pressure sidewall and the suction sidewall of the turbine blade, respectively. The pressure side tip wall may include a chamfered leading edge with film cooling holes having exhaust outlets positioned therein. An axially extending tip wall may be formed from at least two outer linear surfaces joined together at an intersection forming a concave axially extending tip wall. The axially extending tip wall may include a convex inner surface forming a radially outer end to an inner cavity forming a cooling system. The cooling system may include one or more film cooling holes in the axially extending tip wall proximate to the suction sidewall, which promotes increased cooling at the pressure and suction sidewalls.

Lee, Ching-Pang

2014-12-30T23:59:59.000Z

107

Microcontrollers Images: http://en.wikipedia.org/wiki/File:Digital_Multimeter_Aka.jpg, http://en.wikipedia.org/wiki/File:Resistors_color_code.jpg, http://en.wikipedia.org/wiki/File:Lm356.jpg , http://en.wikipedia.org/  

E-Print Network (OSTI)

://en.wikipedia.org/wiki/File:Digital_Multimeter_Aka.jpg, http://en.wikipedia.org/wiki/File:Resistors_color_code.jpg, http://en.wikipedia.org/wiki/File:Lm356.jpg://en.wikipedia.org/wiki/File:Digital_Multimeter_Aka.jpg, http://en.wikipedia.org/wiki/File:Resistors_color_code.jpg, http://en.wikipedia.org/wiki/File:Lm356.jpg://en.wikipedia.org/wiki/File:Digital_Multimeter_Aka.jpg, http://en.wikipedia.org/wiki/File:Resistors_color_code.jpg, http://en.wikipedia.org/wiki/File:Lm356.jpg

Smith, James Andrew

108

Creep life prediction of service-exposed turbine blades  

Science Journals Connector (OSTI)

The aim of this research work was to study the possibility of predicting the operational creep life of service-exposed blades used in industrial gas turbines. This prediction is based on the determination of blades creep life using stressrupture test under accelerated test conditions where the applied stresses were 400,500 and 600MPa and the test temperature was 850C. The study concentrated on creep behavior of service-exposed blades having different actual service lifes. The test specimens were prepared from first stage turbine blades made of Ni-based superalloy (IN-738). LarsonMiller parameter was used to extrapolate the stressrupture test results to the actual operating conditions of blades. The operational creep life and the residual life of service-exposed blades were determined employing the life fraction rule.

G. Marahleh; A.R.I. Kheder; H.F. Hamad

2006-01-01T23:59:59.000Z

109

Multi-objective structural optimization of a HAWT composite blade  

Science Journals Connector (OSTI)

Abstract The AOC 15/50 wind turbine blade has been considered as the baseline configuration for a structural optimization process based on a multi-objective genetic algorithm. Through the optimization of several combinations of both the type and the layup of the laminas, an improved rotor blade has been obtained without changing the composite materials adopted for the original architecture. The design variables of the optimization are both the choice of the employed materials and their placement in the layout of the blade skin. A marked reduction of the overall blade weight and a corresponding increment of its flapwise rigidity have been obtained. An unwanted small increase of the edgewise deformation has also been registered, requiring a further optimization process starting from the obtained optimal rotor blade configuration, in order to enhance also the edgewise rigidity of the blade.

Andrea Dal Monte; Marco Raciti Castelli; Ernesto Benini

2013-01-01T23:59:59.000Z

110

Failure Analysis of a Compressor Blade of Gas Turbine Engine  

Science Journals Connector (OSTI)

Abstract The stage II compressor stator blade of a developmental gas turbine engine was found damaged during dismantling of the engine after test run. A portion of the blade was found fractured from the hub region at leading edge. A crack was also observed extending from the fractured surface towards the centre of the airfoil region of the blade. Low magnification stereo-binocular observation revealed presence of beach marks on the fractured surface indicating the blade failure in progressive mode. This observation was further confirmed by scanning electron microscopy. The crack origin was at the blade hub-stem junction on the leading edge side. Presence of machining/filing marks appeared to be the reason for the fatigue crack initiation from this region. No metallurgical abnormalities were present at the crack origin. However, deep filing/machining lines were observed at the stem region of the blade attributing to the cause of failure.

Swati Biswas; M.D. Ganeshachar; Jivan Kumar; V.N. Satish Kumar

2014-01-01T23:59:59.000Z

111

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,...

112

SNL Begins Field Testing on First SMART Blades  

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

The Department of Energy (DOE) Sandia National Laboratories (SNL) completed fabrication and began field testing a set of wind turbine blades with active load control capabilities.

113

Sandia National Laboratories: The Influence of Rotor Blade Design...  

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

National Rotor Testbed (NRT) includes research to quantify the degree to which the blade design load distribution influences the rotor near- and mid-wake velocity deficits and...

114

SciTech Connect: Blade Testing Trends (Presentation)  

Office of Scientific and Technical Information (OSTI)

Org: Other Non-EERE Country of Publication: United States Language: English Subject: 17 WIND ENERGY BLADE TESTING; TRENDS; BIAXIAL TESTING; NATIONAL WIND TECHNOLOGY CENTER; NWTC;...

115

The SNL100-03 Blade: Design Studies with Flatback Airfoils for the Sandia 100-meter Blade.  

SciTech Connect

A series of design studies were performed to inv estigate the effects of flatback airfoils on blade performance and weight for large blades using the Sandi a 100-meter blade designs as a starting point. As part of the study, the effects of varying the blade slenderness on blade structural performance was investigated. The advantages and disadvantages of blad e slenderness with respect to tip deflection, flap- wise & edge-wise fatigue resistance, panel buckling capacity, flutter speed, manufacturing labor content, blade total weight, and aerodynamic design load magn itude are quantified. Following these design studies, a final blade design (SNL100-03) was prod uced, which was based on a highly slender design using flatback airfoils. The SNL100-03 design with flatback airfoils has weight of 49 tons, which is about 16% decrease from its SNL100-02 predecessor that used conventional sharp trailing edge airfoils. Although not systematically optimized, the SNL100 -03 design study provides an assessment of and insight into the benefits of flatback airfoils for la rge blades as well as insights into the limits or negative consequences of high blade slenderness resulting from a highly slender SNL100-03 planform as was chosen in the final design definition. This docum ent also provides a description of the final SNL100-03 design definition and is intended to be a companion document to the distribution of the NuMAD blade model files for SNL100-03, which are made publicly available. A summary of the major findings of the Sandia 100-meter blade development program, from the initial SNL100-00 baseline blade through the fourth SNL100-03 blade study, is provided. This summary includes the major findings and outcomes of blade d esign studies, pathways to mitigate the identified large blade design drivers, and tool development that were produced over the course of this five-year research program. A summary of large blade tec hnology needs and research opportunities is also presented.

Griffith, Daniel; Richards, Phillip William

2014-09-01T23:59:59.000Z

116

On the impact of variability and assembly on turbine blade cooling flow and oxidation life  

E-Print Network (OSTI)

The life of a turbine blade is dependent on the quantity and temperature of the cooling flow sup- plied to the blade. The focus of this thesis is the impact of variability on blade cooling flow and, subsequently, its impact ...

Sidwell, Carroll Vincent, 1972-

2004-01-01T23:59:59.000Z

117

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

118

Multiple piece turbine blade/vane  

SciTech Connect

An air cooled turbine blade or vane of a spar and shell construction with the shell made from a high temperature resistant material that must be formed from an EDM process. The shell and the spar both have a number of hooks extending in a spanwise direction and forming a contact surface that is slanted such that a contact force increases as the engaging hooks move away from one another. The slanted contact surfaces on the hooks provides for an better seal and allows for twisting between the shell and the spar while maintaining a tight fit.

Kimmel, Keith D

2013-02-05T23:59:59.000Z

119

The SNL100-03 Blade: Design Studies with Flatback Airfoils for...  

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

in the figure), which demonstrates the weight reduction trajectory in this series of blade design studies. The industry survey includes recent large blades including the...

120

Vibration of Axial Turbomachinery Blades: Measurement and Fluid-Structure Interactions.  

E-Print Network (OSTI)

?? The focus of this dissertation is on turbomachinery blade vibration measurements and unsteady fluid-structure interactions. Vibration of turbomachinery blades are critical to jet engine (more)

Mikrut, Paul Louis

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "blade aka sinoma" 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

E-Print Network 3.0 - arc blade type Sample Search Results  

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

NASA Langley Research Center Collection: Engineering 8 Sparkr Blade Test Centre Wind turbines with a rotor diameter exceed- Summary: Sparkr Blade Test Centre Wind...

122

Vibration based damage detection of rotor blades in a gas turbine engine  

Science Journals Connector (OSTI)

Abstract This paper describes the problems concerning turbine rotor blade vibration that seriously impact the structural integrity of a developmental aero gas turbine. Experimental determination of vibration characteristics of rotor blades in an engine is very important from fatigue failure considerations. The blades under investigation are fabricated from nickel base super alloy through directionally solidified investment casting process. The blade surfaces are coated with platinum aluminide for oxidation protection. A three dimensional finite element modal analysis on a bladed disk was performed to know the likely blade resonances for a particular design in the speed range of operation. Experiments were conducted to assess vibration characteristics of bladed disk rotor during engine tests. Rotor blade vibrations were measured using non-intrusive stress measurement system, an indirect method of blade vibration measurement utilizing blade tip timing technique. Abnormalities observed in the vibration characteristics of the blade tip timing data measured during engine tests were used to detect the blade damage. Upon disassembly of the engine and subsequent fluorescent penetrant inspection, it was observed that three blades of the rotor assembly were identified to have damaged. These are the blades that exhibited vibration abnormalities as a result of large resonant vibration response while engine tests. Further, fractographic analysis performed on the blades revealed the mechanism of blade failures as fatigue related. The root cause of blade failure is established to be high cycle fatigue from the engine run data history although the blades were put into service for just 6 h of engine operation.

S. Madhavan; Rajeev Jain; C. Sujatha; A.S. Sekhar

2014-01-01T23:59:59.000Z

123

Help Wanted at Kansas Wind Blade Company | Department of Energy  

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

Help Wanted at Kansas Wind Blade Company Help Wanted at Kansas Wind Blade Company Help Wanted at Kansas Wind Blade Company July 12, 2010 - 12:00pm Addthis Stephen Graff Former Writer & editor for Energy Empowers, EERE Last year, Israel Sanchez, a 31-year-old Newton, Kan., resident, was painting the blades of wind turbines for Enertech, Inc., a small-scale wind manufacturer. Now he's assembling the entire system. "They promoted me," says Sanchez, taking a quick break from the assembly line in the 10,000 square-foot plant in Newton. "It's a new field for me, but I'm excited because it's all new experiences every day." Sanchez is assembling Enertech's new wind models using an innovative blade design licensed from the National Renewable Energy Laboratory (NREL) in Golden, Colo., on its 40 kW turbines.

124

Help Wanted at Kansas Wind Blade Company | Department of Energy  

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

Wanted at Kansas Wind Blade Company Wanted at Kansas Wind Blade Company Help Wanted at Kansas Wind Blade Company July 12, 2010 - 12:00pm Addthis Stephen Graff Former Writer & editor for Energy Empowers, EERE Last year, Israel Sanchez, a 31-year-old Newton, Kan., resident, was painting the blades of wind turbines for Enertech, Inc., a small-scale wind manufacturer. Now he's assembling the entire system. "They promoted me," says Sanchez, taking a quick break from the assembly line in the 10,000 square-foot plant in Newton. "It's a new field for me, but I'm excited because it's all new experiences every day." Sanchez is assembling Enertech's new wind models using an innovative blade design licensed from the National Renewable Energy Laboratory (NREL) in Golden, Colo., on its 40 kW turbines.

125

Wind turbine blade testing system using base excitation  

DOE Patents (OSTI)

An apparatus (500) for fatigue testing elongate test articles (404) including wind turbine blades through forced or resonant excitation of the base (406) of the test articles (404). The apparatus (500) includes a testing platform or foundation (402). A blade support (410) is provided for retaining or supporting a base (406) of an elongate test article (404), and the blade support (410) is pivotally mounted on the testing platform (402) with at least two degrees of freedom of motion relative to the testing platform (402). An excitation input assembly (540) is interconnected with the blade support (410) and includes first and second actuators (444, 446, 541) that act to concurrently apply forces or loads to the blade support (410). The actuator forces are cyclically applied in first and second transverse directions. The test article (404) responds to shaking of its base (406) by oscillating in two, transverse directions (505, 507).

Cotrell, Jason; Thresher, Robert; Lambert, Scott; Hughes, Scott; Johnson, Jay

2014-03-25T23:59:59.000Z

126

Definition of a 5MW/61.5m wind turbine blade reference model.  

SciTech Connect

A basic structural concept of the blade design that is associated with the frequently utilized %E2%80%9CNREL offshore 5-MW baseline wind turbine%E2%80%9D is needed for studies involving blade structural design and blade structural design tools. The blade structural design documented in this report represents a concept that meets basic design criteria set forth by IEC standards for the onshore turbine. The design documented in this report is not a fully vetted blade design which is ready for manufacture. The intent of the structural concept described by this report is to provide a good starting point for more detailed and targeted investigations such as blade design optimization, blade design tool verification, blade materials and structures investigations, and blade design standards evaluation. This report documents the information used to create the current model as well as the analyses used to verify that the blade structural performance meets reasonable blade design criteria.

Resor, Brian Ray

2013-04-01T23:59:59.000Z

127

Steam turbine blade reliability seminar and workshop: proceedings  

SciTech Connect

An EPRI workshop to address steam turbine blade reliability improvement was cohosted by Boston Edison Company in Boston, Massachusetts on July 7-9, 1982. The 142 attendees represented a broad spectrum of US utilities, equipment manufacturers, and consultants, as well as representatives from Canada, Europe, and Japan. These proceedings contain the text of the formal presentations as well as summaries of the working group sessions which were devoted to topics of particular interest to the workshop participants. The formal presentations were organized under the following general session titles: utility experience with turbine blades; blade failure mechanisms and causes; blade design for high reliability; problem solutions for operating units; and failure analysis, NDE, and diagnostics. In addition to the technical presentations, working group sessions were held on selected topics relevant to steam turbine blade reliability improvement. Each group provided a forum for engineers to exchange ideas and information in a less formal environment. These discussions focused on key issues in more detail and addressed some subjects not covered in the formal presentations. The subjects of these working groups were: low pressure turbine blade problems; solid particle erosion; steam chemistry; failure analysis, NDE, and diagnostics; effect of boiler and balance-of-plant; and retrofittable fixes for blade problems. Individual papers have been entered into EDB and ERA. (LTN)

Brown, R.G.; Quilliam, J.F. (eds.)

1985-07-01T23:59:59.000Z

128

Gas turbine blade with intra-span snubber  

DOE Patents (OSTI)

A gas turbine blade (10) including a hollow mid-span snubber (16). The snubber is affixed to the airfoil portion (14) of the blade by a fastener (20) passing through an opening (24) cast into the surface (22) of the blade. The opening is defined during an investment casting process by a ceramic pedestal (38) which is positioned between a ceramic core (32) and a surrounding ceramic casting shell (48). The pedestal provides mechanical support for the ceramic core during both wax and molten metal injection steps of the investment casting process.

Merrill, Gary B.; Mayer, Clinton

2014-07-29T23:59:59.000Z

129

Medial design of blades for hydroelectric turbines and ship propellers M. Rossgatterera  

E-Print Network (OSTI)

Medial design of blades for hydroelectric turbines and ship propellers M. Rossgatterera , B. J Abstract We present a method for constructing blades of hydroelectric turbines and ship propellers based. Keywords: CAD-model, B-spline representation, hydroelectric turbine blade, propeller blade, medial axis

Jüttler, Bert

130

Structural modal interaction of a four degree of freedom bladed disk and casing model  

E-Print Network (OSTI)

Structural modal interaction of a four degree of freedom bladed disk and casing model Mathias specific interaction phenomenon that may occur in turbo- machines due to radial rub between a bladed disk requirements leading to reduced clearance between blade-tips and casing together with the rotation of the blade

Boyer, Edmond

131

PowerBlades GmbH | Open Energy Information  

Open Energy Info (EERE)

PowerBlades GmbH PowerBlades GmbH Jump to: navigation, search Name PowerBlades GmbH Place Lemwerder, Hamburg, Germany Zip 27809 Sector Wind energy Product Developement and production of in-house offshore rotor blades for wind energy turbines. Coordinates 53.160455°, 8.61374° 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":53.160455,"lon":8.61374,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

132

Huayi Wind Blade Research Center | Open Energy Information  

Open Energy Info (EERE)

Huayi Wind Blade Research Center Huayi Wind Blade Research Center Jump to: navigation, search Name Huayi Wind Blade Research Center Place Baoding, Hebei Province, China Zip 71051 Sector Wind energy Product China's first research center for wind turbine blade. Coordinates 38.855011°, 115.480217° 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":38.855011,"lon":115.480217,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

133

Infrared thermography to detect residual ceramic in gas turbine blades  

Science Journals Connector (OSTI)

A serious problem in the production of gas turbine blades is the detection of residual ceramic cores inside the cooling passages; in ... the presence of even small ceramic pieces affects turbine performance and m...

C. Meola; G.M. Carlomagno; M. Di Foggia; O. Natale

2008-06-01T23:59:59.000Z

134

Lean implementation across value stream in main rotor blade area  

E-Print Network (OSTI)

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

Phoenix, Casey J. (Casey John)

2007-01-01T23:59:59.000Z

135

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...

136

Determining effects of turbine blades on fluid motion  

DOE Patents (OSTI)

Disclosed is a technique for simulating wind interaction with wind turbines. A turbine blade is divided into radial sections. The effect that each of these radial sections has on the velocities in Eulerian computational cells they overlap is determined. The effect is determined using Lagrangian techniques such that the calculations need not include wind components in the radial direction. A force on each radial section of turbine blade is determined. This force depends on the axial and azimuthal components of the fluid flow in the computational cell and the geometric properties of the turbine blade. The force on the turbine blade is fed back to effect the fluid flow in the computational cell for the next time step.

Linn, Rodman Ray (Los Alamos, NM); Koo, Eunmo (Los Alamos, NM)

2011-05-31T23:59:59.000Z

137

Determining effects of turbine blades on fluid motion  

DOE Patents (OSTI)

Disclosed is a technique for simulating wind interaction with wind turbines. A turbine blade is divided into radial sections. The effect that each of these radial sections has on the velocities in Eulerian computational cells they overlap is determined. The effect is determined using Lagrangian techniques such that the calculations need not include wind components in the radial direction. A force on each radial section of turbine blade is determined. This force depends on the axial and azimuthal components of the fluid flow in the computational cell and the geometric properties of the turbine blade. The force on the turbine blade is fed back to effect the fluid flow in the computational cell for the next time step.

Linn, Rodman Ray (Los Alamos, NM); Koo, Eunmo (Los Alamos, NM)

2012-05-01T23:59:59.000Z

138

CX-100 and TX-100 blade field tests.  

SciTech Connect

In support of the DOE Low Wind Speed Turbine (LWST) program two of the three Micon 65/13M wind turbines at the USDA Agricultural Research Service (ARS) center in Bushland, Texas will be used to test two sets of experimental blades, the CX-100 and TX-100. The blade aerodynamic and structural characterization, meteorological inflow and wind turbine structural response will be monitored with an array of 75 instruments: 33 to characterize the blades, 15 to characterize the inflow, and 27 to characterize the time-varying state of the turbine. For both tests, data will be sampled at a rate of 30 Hz using the ATLAS II (Accurate GPS Time-Linked Data Acquisition System) data acquisition system. The system features a time-synchronized continuous data stream and telemetered data from the turbine rotor. This paper documents the instruments and infrastructure that have been developed to monitor these blades, turbines and inflow.

Holman, Adam (USDA-Agriculture Research Service, Bushland, TX); Jones, Perry L.; Zayas, Jose R.

2005-12-01T23:59:59.000Z

139

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

140

Coherent testing and simulation of composite blade repair  

E-Print Network (OSTI)

COHERENT TESTING AND SIMULATION OF COMPOSITE BLADE REPAIR A Thesis by BRIAN GLENN MCNICHOLS Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... December 1997 Major Subject: Mechanical Engineering COHERENT TESTING AND SIMULATION OF COMPOSITE BLADE REPAIR A Thesis by BRIAN GLENN MCNICHOLS Submitted to Texas A&M University In partial fulfillment of the requirements for the degree of MASTER...

McNichols, Brian Glenn

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "blade aka sinoma" 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

Acoustic and biological studies of pitched blade mixing systems  

E-Print Network (OSTI)

of blade construction on coalesence. Van't Riet also showed the dependence of power consumption on vessel geometry, hold up, bubble size, and the number of impeller blades present. Warmoeskerken et s. l (51 described gas loading regimes of the pitched... also be obtained with Fourier transforms. Strasberg reviewed sound emissions from: 1) bubble formation at a nozzle; 2) bubble coalescence and splitting; 3) bubble flow past bodies and constrictions; and 4) rising bubbles; all of which may have...

Hsi, Randolph Paul

1986-01-01T23:59:59.000Z

142

An evaluation of oscillating digging blades for carrot harvesters  

E-Print Network (OSTI)

AN EVALUATION OF OSCILLATING DIGGING BLADES FOR CARROT HARVESTERS A Thesis by ROBERT DWIGHT CHENOWETH Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... May 1972 Major Subject: Agricultural Engineering AN EVALUATION OF OSCILLATING DIGGING BLADES FOR CARROT HARVESTERS A Thesis by ROBERT DWIGHT CHENOWETH Approved as to style and content by: (Chairman of Committee) Head of Department) (Member...

Chenoweth, Robert Dwight

1972-01-01T23:59:59.000Z

143

Microsoft PowerPoint - STP Blade Failure_Hentschel_SWPA Conf (11 Jun 09).ppt  

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

STRONG STRONG Stockton Turbine Blade Failure Spillway Tainter Gates Tailrace Powerhouse Switchyard BUILDING STRONG Stockton Power Plant Cross Section Location of failed blade section Runner Blade Draft Tube Bulkheads Intake Gates Intake Bulkheads BUILDING STRONG Runner Blade Failure * Unit experience severe vibration the morning of 4 Feb 09 activating the vibration alarms * Plant personnel observed cyclic banging and water leakage at the draft tube hatch door * Unit was immediately shut down * A failed blade section (blade #4) was discovered by divers at the bottom of the draft tube * Partial dewatering was performed to inspect turbine runner * Turbine blade #4 experienced a catastrophic failure * Potential cracks were observed on three of the other five blades (blades #2, #5, and #6)

144

Investigation of rotor blade roughness effects on turbine performance  

SciTech Connect

The cold air test program was completed on the SSME (Space Shuttle Main Engine) HPFTP (High-Pressure Fuel Turbopump) turbine with production nozzle vane rings and polished coated rotor blades with a smooth surface finish of 30[mu]in. (0.76 [mu]m) rms (root mean square). The smooth blades were polished by an abrasive flow machining process. The test results were compared with the air test results from production rough-coated rotor blades with a surface finish of up to 400 [mu]in. (10.16 [mu]m) rms. Turbine efficiency was higher for the smooth blades over the entire range tested. Efficiency increased 2.1 percentage points at the SSME 104 percent RPL (Rated Power Level) conditions. This efficiency improvement could reduce the SSME HPFTP turbine inlet temperature by 57 R (32K), increasing turbine durability. The turbine flow parameter increased and the midspan outlet swirl angle became more axial with the smooth rotor blades.

Boynton, J.L.; Tabibzadeh, R. (Rockwell International Corp., Canoga Park, CA (United States). Rocketdyne Div.); Hudson, S.T. (NASA-Marshall Space Flight Center, Huntsville, AL (United States))

1993-07-01T23:59:59.000Z

145

Incipient Crack Detection in Composite Wind Turbine Blades  

SciTech Connect

This paper presents some analysis results for incipient crack detection in a 9-meter CX-100 wind turbine blade that underwent fatigue loading to failure. The blade was manufactured to standard specifications, and it underwent harmonic excitation at its first resonance using a hydraulically-actuated excitation system until reaching catastrophic failure. This work investigates the ability of an ultrasonic guided wave approach to detect incipient damage prior to the surfacing of a visible, catastrophic crack. The blade was instrumented with piezoelectric transducers, which were used in an active, pitchcatch mode with guided waves over a range of excitation frequencies. The performance results in detecting incipient crack formation in the fiberglass skin of the blade is assessed over the range of frequencies in order to determine the point at which the incipient crack became detectable. Higher excitation frequencies provide consistent results for paths along the rotor blade's carbon fiber spar cap, but performance falls off with increasing excitation frequencies for paths off of the spar cap. Lower excitation frequencies provide more consistent performance across all sensor paths.

Taylor, Stuart G. [Los Alamos National Laboratory; Choi, Mijin [Chonbuk National University, Korea; Jeong, Hyomi [Chonbuk National University, Korea; Jang, Jae Kyeong [Chonbuk National University, Korea; Park, Gyuhae [Chonnam National University, Korea; Farinholt, Kevin [Commonwealth Center for Advanced Manufacturing, VA; Farrar, Charles R. [Los Alamos National Laboratory; Ammerman, Curtt N. [Los Alamos National Laboratory; Todd, Michael D. [Los Alamos National Laboratory; Lee, Jung-Ryul [Chonbuk National University, Korea

2012-08-28T23:59:59.000Z

146

Development of integral bladed rotor using linear optimisation technique  

Science Journals Connector (OSTI)

Bladed disks are the most flexible elements in high speed rotating machinery. Stress analysis of these elements present some challenges. These challenges stem from high stress gradients due to contact faces, the non-linearities attending conforming contact with friction. Thermal gradients are also encountered across the disc bore and rim due to uneven temperature distribution. The rim of the disc is made heavier to resist the centrifugal pull of the blade, thus making the assembly heavier. Investigations have been carried out to develop and improve 'blisks' which are integrated version of blades and disc, offering significant weight saving. The present paper describes the possible development process of upgrading a general purpose conventional bladed disc of a single stage compressor into blisk, using linear programme, a finite element analysis tool for linear optimisation, as a dedicated 'design-tool' keeping the same operating conditions and the allowable design limits through numerical models. Design methodology, burst-failure criteria of blisk and bladed disc are discussed in full length. This tool developed exploits the quick convergence ability of a linear system for handling large iterations and overcomes the limitation imposed by material non-linearity, over-speed and burst margin for all decision points based on stress, strain and displacement, in the design-flow process.

K. Kumar; S.L. Ajit Prasad; K. Ramachandra

2012-01-01T23:59:59.000Z

147

NREL: Wind Research - National Wind Technology Center Blade Testing Video  

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

Center Blade Testing Video (Text Version) Center Blade Testing Video (Text Version) Below is the text version for the National Wind Technology Center Blade Testing Video. The video opens with the NREL and NWTC logos, surrounded by black screen and including the title: "NWTC Test Facility Introduction, Dr. Fort Felker, Director of the National Wind Technology Center, TRT 1:42, May 29, 2013." Fort Felker is in a yellow helmet and vest, standing in the NWTC's testing facility. There is a railing to his left, construction cones behind him, and a ladder to his right. Fort Felker: "I'm Fort Felker, I'm the director at the Department of Energy's National Wind Technology Center." Fort's name and title cut in on the right. Fort walks toward the camera while talking. Fort Felker: "Here at the NWTC, we have been conducting structural testing

148

Dual-axis resonance testing of wind turbine blades  

DOE Patents (OSTI)

An apparatus (100) for fatigue testing test articles (104) including wind turbine blades. The apparatus (100) includes a test stand (110) that rigidly supports an end (106) of the test article (104). An actuator assembly (120) is attached to the test article (104) and is adapted for substantially concurrently imparting first and second forcing functions in first and second directions on the test article (104), with the first and second directions being perpendicular to a longitudinal axis. A controller (130) transmits first and second sets of displacement signals (160, 164) to the actuator assembly (120) at two resonant frequencies of the test system (104). The displacement signals (160, 164) initiate the actuator assembly (120) to impart the forcing loads to concurrently oscillate the test article (104) in the first and second directions. With turbine blades, the blades (104) are resonant tested concurrently for fatigue in the flapwise and edgewise directions.

Hughes, Scott; Musial, Walter; White, Darris

2014-01-07T23:59:59.000Z

149

Complex Non-Linear Modal Analysis for Mechanical Systems: Application to Turbomachinery Bladings With Friction  

E-Print Network (OSTI)

Complex Non-Linear Modal Analysis for Mechanical Systems: Application to Turbomachinery Bladings of a turbomachinery blade, with dry-friction interfaces is proposed. In the latter, an original framework

Paris-Sud XI, Université de

150

Developments of cast superalloys and technology for gas turbine blades in BIAM  

Science Journals Connector (OSTI)

Since 1960's many important subjects relating to cast turbine blades including alloy developments, directional solidification (DS) and single crystal (SC) technique and casting technology for blades have been ...

R. Z. Chen

1995-09-01T23:59:59.000Z

151

Cooled turbine blades in the GT-65 gas turbine power unit  

Science Journals Connector (OSTI)

Experience with the development, study, and manufacturing of cooled blades for the GT-65 high temperature gas turbine is described.

V. V. Rtishchev; V. V. Krivonosova; Yu. M. Sundukov

2009-11-01T23:59:59.000Z

152

QUANTITATIVE DAMAGE ASSESSMENT OF HYBRID COMPOSITE WIND TURBINE BLADES BY ENERGY BASED ACOUSTIC EMISSION SOURCE  

E-Print Network (OSTI)

energy with higher efficiency and cost-effective considerations, the size of the wind turbine blade hasQUANTITATIVE DAMAGE ASSESSMENT OF HYBRID COMPOSITE WIND TURBINE BLADES BY ENERGY BASED ACOUSTIC in the wind turbine blade. It was tried to apply a new source location method, which has a developed algorithm

Boyer, Edmond

153

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

E-Print Network (OSTI)

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

Boyer, Edmond

154

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

E-Print Network (OSTI)

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

Paris-Sud XI, Université de

155

Physical Aspects of Blade Erosion by Wet Steam in Turbines [and Discussion  

Science Journals Connector (OSTI)

...Aspects of Blade Erosion by Wet Steam in Turbines [and Discussion] A. Smith J. Caldwell...Christie Blade erosion in wet steam turbines is considered to be preceded by the collection...the trailing edges has been obtained on turbine blade cascades in a wet air tunnel...

1966-01-01T23:59:59.000Z

156

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

157

Mixing blade system for high-resistance media  

DOE Patents (OSTI)

A blade system is described for stirring and agitating a medium, comprising a shaft bearing a plurality of paddles, each having a different geometry and each having approximately the same rotational moment. The geometrically different paddles sweep through different volumes of the medium to minimize shear zone development and maximize the strength of the system with respect to medium-induced stress. 6 figures.

Kronberg, J.W.

1991-07-09T23:59:59.000Z

158

National Wind Tecnology Center Provides Dual Axis Resonant Blade Testing  

ScienceCinema (OSTI)

NREL's Structural Testing Laboratory at the National Wind Technology Center (NWTC) provides experimental laboratories, computer facilities for analytical work, space for assembling components and turbines for atmospheric testing as well as office space for industry researchers. Fort Felker, center director at the NWTC, discusses NREL's state-of-the-art structural testing capabilities and shows a flapwise and edgewise blade test in progress.

Felker, Fort

2014-06-10T23:59:59.000Z

159

Estimation of the pressing force in blade forming application  

Science Journals Connector (OSTI)

We develop a 3-D FE model to simulate the hot forming process for the turbine blades based on elastic-plastic theory and unilateral contact friction theory under isothermal assumption. Due to the quasi-static assumption, an explicit dynamic formulation ... Keywords: finite element, hot forming, modelling, optimisation, simulation

Thibaut Bellizzi; Jonathan Boisvert; Henri Champliaud; Thien-My Dao

2007-05-01T23:59:59.000Z

160

Blades of Glory: Wind Technology Bringing Us Closer To a Clean Energy  

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

Blades of Glory: Wind Technology Bringing Us Closer To a Clean Blades of Glory: Wind Technology Bringing Us Closer To a Clean Energy Future Blades of Glory: Wind Technology Bringing Us Closer To a Clean Energy Future July 17, 2012 - 2:14pm Addthis Niketa Kumar Niketa Kumar Public Affairs Specialist, Office of Public Affairs What does this project do? The Energy Department is supporting the validation of newly developed technologies at wind testing facilities across America. There's a simple truth in wind energy -- the bigger the blade, the more watts generated. 

In the 1980s, blades were typically 65 feet long. Today, as the wind industry continues to grow, blades measure over 150 feet. Looking down the road, the next generation of wind turbine blades is expected to span beyond the length of a football field.



Note: This page contains sample records for the topic "blade aka sinoma" 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

NREL: Technology Transfer - Fabric-Covered Blades Could Make Wind Turbines  

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

Fabric-Covered Blades Could Make Wind Turbines Cheaper and More Efficient Fabric-Covered Blades Could Make Wind Turbines Cheaper and More Efficient A photo of a crew of workers watching as a wind blade is hauled up to a turbine for assembly. A new fabric-wrapped wind blade could eventually replace the traditional fiberglass blade, providing for lighter turbine components that could be built and assembled on site. January 2, 2013 A new design that calls for wrapping architectural fabric around metal wind turbine blades-instead of the traditional fiberglass-could be the latest revolution in dramatically reducing the cost of wind-produced power. That's the focus of a new project that partners NREL with General Electric (GE) and Virginia Polytechnic Institute & State University. Together, they are rethinking the way wind blades are designed,

162

VP 100: New Facility in Boston to Test Large-Scale Wind Blades | Department  

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

VP 100: New Facility in Boston to Test Large-Scale Wind Blades VP 100: New Facility in Boston to Test Large-Scale Wind Blades VP 100: New Facility in Boston to Test Large-Scale Wind Blades July 23, 2010 - 1:19pm Addthis Boston's Wind Technology Testing Center, funded in part with Recovery Act funds, will be first in U.S. to test blades up to 300 feet long. | Photo Courtesy of Massachusetts Clean Energy Center Boston's Wind Technology Testing Center, funded in part with Recovery Act funds, will be first in U.S. to test blades up to 300 feet long. | Photo Courtesy of Massachusetts Clean Energy Center Stephen Graff Former Writer & editor for Energy Empowers, EERE America's first-of-its-kind wind blade testing facility - capable of testing a blade as long as a football field - almost never was. Because of funding woes, the Massachusetts Clean Energy Center (MassCEC),

163

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

164

Optimisation of NSLS-II Blade X-ray Beam Position Monitors: from Photoemission type to Diamond Detector  

SciTech Connect

Optimisation of blade type x-ray beam position monitors (XBPM) was performed for NSLS-II undulator IVU20. Blade material, con and #64257;guration and operation principle was analysed in order to improve XBPM performance. Optimisation is based on calculation of the XBPM signal spatial distribution. Along with standard photoemission type XBPM a Diamond Detector Blades (DDB) were analysed as blades for XBPMs. DDB XBPMs can help to overcome drawbacks of the photoemission blade XBPMs.

ILINSKI P.

2012-07-10T23:59:59.000Z

165

Coatings for the protection of turbine blades from erosion  

SciTech Connect

Many types of turbines, including aircraft gas turbines, steam turbines, and power recovery turbines, suffer from solid particle erosion caused by a variety of materials ingested into the machines. Utilization of various laboratory erosion tests tailored to the specific application by using various erodents, temperatures, velocities, and angles of impact, have been shown to be effective in the development and selection of coatings for the erosion protection of turbine blades and other components. Detonation gun coatings have demonstrated their efficacy in providing substantial protection in many situations. It has now been shown that several tungsten carbide and chromium carbide Super D-Gun{trademark} coatings not only have better erosion resistance than their D-Gun analogs, but cause little or no degradation of the fatigue properties of the blade alloys. Nonetheless, caution should be employed in the application of any laboratory data to a specific situation and additional testing done as warranted by the turbine designer.

Walsh, P.N.; Quets, J.M.; Tucker, R.C. Jr. [Praxair Surface Technologies, Inc., Indianapolis, IN (United States)

1995-01-01T23:59:59.000Z

166

Trailing edge noise theory for rotating blades in uniform flow  

E-Print Network (OSTI)

This paper presents a new formulation for trailing edge noise radiation from rotating blades based on an analytical solution of the convective wave equation. It accounts for distributed loading and the effect of mean flow and spanwise wavenumber. A commonly used theory due to Schlinker and Amiet (1981) predicts trailing edge noise radiation from rotating blades. However, different versions of the theory exist; it is not known which version is the correct one and what the range of validity of the theory is. This paper addresses both questions by deriving Schlinker and Amiet's theory in a simple way and by comparing it to the new formulation, using model blade elements representative of a wind turbine, a cooling fan and an aircraft propeller. The correct form of Schlinker and Amiet's theory (1981) is identified. It is valid at high enough frequency, i.e. for a Helmholtz number relative to chord greater than one and a rotational frequency much smaller than the angular frequency of the noise sources.

Sinayoko, Samuel; Agarwal, Anurag

2013-01-01T23:59:59.000Z

167

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

168

NREL Wind Turbine Blade Structural Testing of the Modular Wind Energy MW45 Blade: Cooperative Research and Development Final Report, CRADA Number CRD-09-354  

SciTech Connect

This CRADA was a purely funds-in CRADA with Modular Wind Energy (MWE). MWE had a need to perform full-scale testing of a 45-m wind turbine blade. NREL/NWTC provided the capabilities, facilities, and equipment to test this large-scale MWE wind turbine blade. Full-scale testing is required to demonstrate the ability of the wind turbine blade to withstand static design load cases and demonstrate the fatigue durability. Structural testing is also necessary to meet international blade testing certification requirements. Through this CRADA, MWE would obtain test results necessary for product development and certification, and NREL would benefit by working with an industrial partner to better understand the unique test requirements for wind turbine blades with advanced structural designs.

Hughes, S.

2012-05-01T23:59:59.000Z

169

PPG and MAG Team Up for Turbine Blade Research | Department of Energy  

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

PPG and MAG Team Up for Turbine Blade Research PPG and MAG Team Up for Turbine Blade Research PPG and MAG Team Up for Turbine Blade Research May 14, 2010 - 12:39pm Addthis Lindsay Gsell For more than 15 years, PPG Industries has been supplying fiberglass to the wind turbine production industry. Now, with more than $700,000 in Recovery Act funds, PPG and partner MAG Industrial Automation Systems are researching materials and processes that could result in stronger and more reliable wind blades. "Current materials need to be optimized to meet the demanding performance needs of today's largest wind blade designs," said Cheryl Richards, PPG global marketing manager in wind energy. According to Cheryl, wind turbine blades are produced by combining dry fiber glass fabrics with a strong resin to form a composite. This method is widely used in production,

170

Heat Transfer from Rotating Blade Platforms with and without Film Cooling  

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

Transfer from Rotating Blade Transfer from Rotating Blade Platforms with and without Film Cooling J.C. Han and M.T. Schobeiri SCIES Project 03-01-SR113 DOE COOPERATIVE AGREEMENT DE-FC26-02NT41431 Texas A&M University Tom J. George, Program Manager, DOE/NETL Richard Wenglarz, Manager of Research, SCIES Project Awarded 07/01/2003 (36 Month Duration) $461,024 Total Contract Value ($361,024 DOE) Turbine Heat Transfer Laboratory Texas A&M University SR 113 - 10-2005 - JCHan Gas Turbine Needs Need Detailed Heat Transfer Data on Rotating Blade Platforms Improve Current Rotor Blade Cooling Schemes Provide Options for New Rotor Blade Cooling Designs Need Accurate and Efficient CFD Codes to Improve Flow and Heat Transfer Predictions and Guide Rotor Blade Cooling Designs Improved Turbine Power Efficiency by Increasing Turbine

171

A study of radial-flow turbomachinery blade vibration measurements using Eulerian laser Doppler vibrometry  

Science Journals Connector (OSTI)

The structural integrity of blades is critical to the health of turbomachinery. Since operational failure of these blades can possibly lead to catastrophic failure of the machine it is important to have knowledge of blade conditions in an online fashion. Due to several practical implications it is desired to measure blade vibration with a non-contact technique. The application of laser Doppler vibrometry towards the vibration based condition monitoring of axial-flow turbomachinery blades has been successfully demonstrated in previous work. In this paper the feasibility of using laser Doppler vibrometry to measure radial-flow turbomachinery blade vibrations is investigated with the aid of digital image correlation and strain gauge telemetry.

2014-01-01T23:59:59.000Z

172

Blade root attachment evaluation low-cycle fatigue estimates based on probabilistic approach  

SciTech Connect

When utilities purchase replacement blades from a manufacturer, the machining tolerances in the root attachment and the material fatigue properties are a major quality concern. These factors can have significant impact on the low-cycle fatigue life. For any replacement blades, the primary concern is to minimize the risk of an in-service failure. However, excessively conservative acceptance criteria would unnecessarily drive up the unit price for the replacement blades. Acceptance criteria with estimates of associated risks of in-service failure are therefore needed for each specific blade design based on the expected operating environment, material, and service life. In the work presented herein, a probabilistic model to estimate LCF in the blade root attachment is presented. The approach is demonstrated using stresses and material fatigue properties for a representative LP last stage blade of a steam turbine. The LCF life estimates obtained using the proposed approach show good correlation with field experience.

Sarlashkar, A.V.; Lam, T.C.T. [Stress Technology Inc., Rochester, NY (United States); McCloskey, T.H. [Electric Power Research Inst., Palo Alto, CA (United States)

1996-12-31T23:59:59.000Z

173

Wind tunnel experiments of a newly developed two-bladed Savonius-style wind turbine  

Science Journals Connector (OSTI)

Abstract Wind tunnel experiments have been conducted with a newly developed two-bladed Savonius-style wind turbine specifically meant for a small-scale energy conversion. This novel shape of the turbine blade is evolved from a series of experiments with different types of blades in the recent past. The developed two-bladed turbine is tested in an open type test section and its performance is assessed in terms of power and torque coefficients. Experiments have also been conducted with other standard blades such as semi-circular, semi-elliptic, Benesh and Bach types in order to have a direct comparison. In this study, all the reported experimental data are inclusive of wind tunnel blockage corrections. Further, the effects of Reynolds number on the dynamic and static characteristics are also discussed. The present investigation demonstrates a gain of 34.8% in maximum power coefficient with the newly developed two-bladed turbine.

Sukanta Roy; Ujjwal K. Saha

2015-01-01T23:59:59.000Z

174

Rotationally Augmented Flow Structures and Time Varying Loads on Turbine Blades: Preprint  

SciTech Connect

To better understand wind turbine flow physics, time dependent blade surface pressure data were acquired from the NREL Unsteady Aerodynamics Experiment.

Schreck, S. J.

2007-01-01T23:59:59.000Z

175

Non-contact gas turbine blade vibration monitoring using internal pressure and casing response measurements.  

E-Print Network (OSTI)

??This thesis addresses the non-contact measurement of rotor blade vibrations in gas turbines. Specifically, use is made of internal casing wall pressure, and external casing (more)

Forbes, Gareth Llewellyn

2010-01-01T23:59:59.000Z

176

SciTech Connect: Development and Validation of a New Blade Element...  

Office of Scientific and Technical Information (OSTI)

Technologies Office Country of Publication: United States Language: English Subject: 17 WIND ENERGY BLADE ELEMENT MOMENTUM; SKEWED WAKE; FAST; AERODYN; UNSTEADY AERODYNAMICS...

177

Performance of twist-coupled blades on variable speed rotors  

SciTech Connect

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

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

1999-12-07T23:59:59.000Z

178

Blade System Design Study. Part II, final project report (GEC).  

SciTech Connect

As part of the U.S. Department of Energy's Low Wind Speed Turbine program, Global Energy Concepts LLC (GEC)1 has studied alternative composite materials for wind turbine blades in the multi-megawatt size range. This work in one of the Blade System Design Studies (BSDS) funded through Sandia National Laboratories. The BSDS program was conducted in two phases. In the Part I BSDS, GEC assessed candidate innovations in composite materials, manufacturing processes, and structural configurations. GEC also made recommendations for testing composite coupons, details, assemblies, and blade substructures to be carried out in the Part II study (BSDS-II). The BSDS-II contract period began in May 2003, and testing was initiated in June 2004. The current report summarizes the results from the BSDS-II test program. Composite materials evaluated include carbon fiber in both pre-impregnated and vacuum-assisted resin transfer molding (VARTM) forms. Initial thin-coupon static testing included a wide range of parameters, including variation in manufacturer, fiber tow size, fabric architecture, and resin type. A smaller set of these materials and process types was also evaluated in thin-coupon fatigue testing, and in ply-drop and ply-transition panels. The majority of materials used epoxy resin, with vinyl ester (VE) resin also used for selected cases. Late in the project, testing of unidirectional fiberglass was added to provide an updated baseline against which to evaluate the carbon material performance. Numerous unidirectional carbon fabrics were considered for evaluation with VARTM infusion. All but one fabric style considered suffered either from poor infusibility or waviness of fibers combined with poor compaction. The exception was a triaxial carbon-fiberglass fabric produced by SAERTEX. This fabric became the primary choice for infused articles throughout the test program. The generally positive results obtained in this program for the SAERTEX material have led to its being used in innovative prototype blades of 9-m and 30-m length, as well as other non-wind related structures.

Griffin, Dayton A. (DNV Global Energy Concepts Inc., Seattle, WA)

2009-05-01T23:59:59.000Z

179

Airfoil family design for large offshore wind turbine blades  

Science Journals Connector (OSTI)

Wind turbine blades size has scaled-up during last years due to wind turbine platform increase especially for offshore applications. The EOLIA project 2007-2010 (Spanish Goverment funded project) was focused on the design of large offshore wind turbines for deep waters. The project was managed by ACCIONA Energia and the wind turbine technology was designed by ACCIONA Windpower. The project included the design of a wind turbine airfoil family especially conceived for large offshore wind turbine blades, in the order of 5MW machine. Large offshore wind turbines suffer high extreme loads due to their size, in addition the lack of noise restrictions allow higher tip speeds. Consequently, the airfoils presented in this work are designed for high Reynolds numbers with the main goal of reducing blade loads and mantainig power production. The new airfoil family was designed in collaboration with CENER (Spanish National Renewable Energy Centre). The airfoil family was designed using a evolutionary algorithm based optimization tool with different objectives, both aerodynamic and structural, coupled with an airfoil geometry generation tool. Force coefficients of the designed airfoil were obtained using the panel code XFOIL in which the boundary layer/inviscid flow coupling is ineracted via surface transpiration model. The desing methodology includes a novel technique to define the objective functions based on normalizing the functions using weight parameters created from data of airfoils used as reference. Four airfoils have been designed, here three of them will be presented, with relative thickness of 18%, 21%, 25%, which have been verified with the in-house CFD code, Wind Multi Block WMB, and later validated with wind tunnel experiments. Some of the objectives for the designed airfoils concern the aerodynamic behavior (high efficiency and lift, high tangential coefficient, insensitivity to rough conditions, etc.), others concern the geometry (good for structural design, compatibility for the different airfoil family members, etc.) and with the ultimate objective that the airfoils will reduce the blade loads. In this paper the whole airfoil design process and the main characteristics of the airfoil family are described. Some force coefficients for the design Reynolds number are also presented. The new designed airfoils have been studied with computational calculations (panel method code and CFD) and also in a wind tunnel experimental campaign. Some of these results will be also presented in this paper.

B Mndez; X Munduate; U San Miguel

2014-01-01T23:59:59.000Z

180

Wind Turbine Blade Test Definition of the DeWind DW90 Rotor Blade: Cooperative Research and Development Final Report, CRADA Number CRD-09-326  

SciTech Connect

This CRADA was developed as a funds-in CRADA with DeWind to assess the suitability of facilities and equipment at the NWTC for performing certification blade testing on wind turbine blades made from advanced materials. DeWind produces a wind turbine blade which includes the use of high-strength and stiffness materials. NREL and DeWind had a mutual interest in defining the necessary facilities, equipment, and test methods for testing large wind turbine blades which incorporate advanced materials and adaptive structures, as the demands on test equipment and infrastructure are greater than current capabilities. Work under this CRADA would enable DeWind to verify domestic capability for certification-class static and fatigue testing, while NREL would be able to identify and develop specialized test capabilities based on the test requirements.

Hughes, S.

2012-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "blade aka sinoma" 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

Resonant Vibrations Resulting from the Re-Engineering of a Constant-Speed 2-Bladed Turbine to a Variable-Speed 3-Bladed Turbine  

SciTech Connect

The CART3 (Controls Advanced Research Turbine, 3-bladed) at the National Wind Technology Center has recently been converted from a 2-bladed constant speed machine to a 3-bladed variable speed machine designed specically for controls research. The purpose of this conversion was to develop an advanced controls field-testing platform which has the more typical 3-bladed configuration. A result of this conversion was the emergence of several resonant vibrations, some of which initially prevented operation of the turbine until they could be explained and resolved. In this paper, the investigations into these vibrations are presented as 'lessons-learned'. Additionally, a frequency-domain technique called waterfall plotting is discussed and its usefulness in this research is illustrated.

Fleming, P.; Wright, A. D.; Finersh, L. J.

2010-12-01T23:59:59.000Z

182

DEVELOPMENT OF PROTECTIVE COATINGS FOR SINGLE CRYSTAL TURBINE BLADES  

SciTech Connect

Turbine blades in coal derived syngas systems are subject to oxidation and corrosion due to high steam temperature and pressure. Thermal barrier coatings (TBCs) are developed to address these problems. The emphasis is on prime-reliant design and a better coating architecture, having high temperature and corrosion resistance properties for turbine blades. In Phase I, UES Inc. proposed to develop, characterize and optimize a prime reliant TBC system, having smooth and defect-free NiCoCrAlY bond layer and a defect free oxide sublayer, using a filtered arc technology. Phase I work demonstrated the deposition of highly dense, smooth and defect free NiCoCrAlY bond coat on a single crystal CMSX-4 substrate and the deposition of alpha-alumina and yttrium aluminum garnet (YAG) sublayer on top of the bond coat. Isothermal and cyclic oxidation test and pre- and post-characterization of these layers, in Phase I work, (with and without top TBC layer of commercial EB PVD YSZ) revealed significant performance enhancement.

Amarendra K. Rai

2006-12-04T23:59:59.000Z

183

Blade tip clearance effect on the performance and flow field of a three stage axial turbine  

E-Print Network (OSTI)

rate was also measured using a venturi flow meter in order to discern the effect the blade tip clearance has on the engine efficiency and performance. Results have shown that the blade tip clearance losses appear to play a smaller role when compared...

Abdel-Fattah, Sharef Aly

2012-06-07T23:59:59.000Z

184

Swept Blade Aero-Elastic Model for a Small Wind Turbine (Presentation)  

SciTech Connect

A preprocessor for analyzing preswept wind turbines using the in-house aero-elastic tool coupled with a multibody dynamic simulator was developed. A baseline 10-kW small wind turbine with straight blades and various configurations that featured bend-torsion coupling via blade-tip sweep were investigated to study their impact on ultimate loads and fatigue damage equivalent loads.

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

2014-07-01T23:59:59.000Z

185

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

E-Print Network (OSTI)

LQG control of horizontal wind turbines for blades and tower loads alleviation A. Pintea*, N of power produced by two bladed horizontal variable speed wind turbines. The proposed controller ensures oscillations and with the tower bending tendency. Keywords: LQG control, Wind turbines, Multi-objective control

Paris-Sud XI, Université de

186

Ris-R-Report Full Scale Test of SSP 34m blade,  

E-Print Network (OSTI)

nutidens og fremtidens store vinger under kombineret last" where a 34m wind turbine blade from SSP application and the solution for the load application is described in this report as well. The blade has been have been measured, and also 378 strain gauge measurements have been performed. Furthermore Acoustic

187

Model reduction applied to multi-stage assemblies of bladed disks  

E-Print Network (OSTI)

consisted in modelling separately each stage of the assembly of bladed disks that compose the rotor of a jetModel reduction applied to multi-stage assemblies of bladed disks A. Sternch¨uss, E. Balm, France e-mail: arnaud.sternchuss@ecp.fr P. Jean, J.-P. Lombard Snecma (Safran Group) Rond-point Ren

Boyer, Edmond

188

Computational Analysis of a Tip Vortex Structure Shed from a Bioinspired Blade  

E-Print Network (OSTI)

design for this purpose. Different rotor blade designs and relevant insect wings are under study Computational Analysis of a Tip Vortex Structure Shed from a Bioinspired Blade Sebastian was generated with SolidWorks CAD software from measurements performed on a wing sample obtained from

Maccabe, Barney

189

Reduction of teeter angle excursions for a two-bladed downwind rotor using cyclic pitch control  

E-Print Network (OSTI)

Reduction of teeter angle excursions for a two-bladed downwind rotor using cyclic pitch control methods are based on cyclic pitch through the pitch servo system. The first method is based on a PI of the pitch regulated 5MW reference turbine used in the IEA Annex 23 benchmark. KEYWORDS: TWO-BLADED WIND

190

Dynamic stall analysis of horizontal-axis-wind-turbine blades using computational fluid dynamics  

Science Journals Connector (OSTI)

Dynamic stall has been widely known to significantly affect the performance of the wind turbines. In this paper aerodynamic simulation of the unsteady low-speed flow past two-dimensional wind turbine blade profiles developed by the National Renewable Energy Laboratory (NREL) will be performed. The aerodynamic simulation will be performed using Computational Fluid Dynamics (CFD). The governing equations used in the simulations are the Unsteady-Reynolds-Averaged-Navier-Stokes (URANS) equations. The unsteady separated turbulent flow around an oscillating airfoil pitching in a sinusoidal pattern in the regime of low Reynolds number is investigated numerically. The investigation employs the URANS approach with the most suitable turbulence model. The development of the light dynamic stall of the blades under consideration is studied. The S809 blade profile is simulated at different mean wind speeds. Moreover the S826 blade profile is also considered for analysis of wind turbine blade which is the most suitable blade profile for the wind conditions in Egypt over the site of Gulf of El-Zayt. In order to find the best oscillating frequency different oscillating frequencies are studied. The best frequency can then be used for the blade pitch controller. The comparisons with the experimental results showed that the used CFD code can accurately predict the blade profile unsteady aerodynamic loads.

2012-01-01T23:59:59.000Z

191

PREDICTION OF DELAM INATION IN WIND TURBINE BLADE STRUCTURAL DETAILS John F. Mandell, Douglas S. Cairns  

E-Print Network (OSTI)

in Reference 3, available on the Sandia web site www.sandia.gov/Renewable_Energy/Wind_Energy/. DELAMINATION1 PREDICTION OF DELAM INATION IN WIND TURBINE BLADE STRUCTURAL DETAILS John F. Mandell, Douglas S materials structures such as wind turbine blades. Design methodologies to prevent such failures have

192

Resonances of a Forced Mathieu Equation with Reference to Wind Turbine Blades  

E-Print Network (OSTI)

Resonances of a Forced Mathieu Equation with Reference to Wind Turbine Blades Venkatanarayanan Engineering Michigan State University East Lansing, Michigan 48824 Abstract A horizontal axis wind turbine blade in steady rotation endures cyclic transverse loading due to wind shear, tower shadowing

Feeny, Brian

193

Approach to the fatigue analysis of vertical-axis wind-turbine blades  

SciTech Connect

A cursory analysis of the stress history of wind turbine blades indicates that a single stress level at each wind speed does not adequately describe the blade stress history. A statistical description is required. Blade stress data collected from the DOE/ALCOA Low Cost experimental turbines indicate that the Rayleigh probability density function adequately describes the distribution of vibratory stresses at each wind speed. The Rayleigh probability density function allows the distribution of vibratory stresses to be described by the RMS of the stress vs. time signal. With the RMS stress level described for all wind speeds, the complete stress history of the turbine blades is known. Miner's linear cumulative damage rule is used as a basis for summing the fatigue damage over all operating conditions. An analytical expression is derived to predict blade fatigue life.

Veers, P.S.

1981-09-01T23:59:59.000Z

194

Proof-of-Concept Manufacturing and Testing of Composite Wind Generator Blades Made by HCBMP (High Compression Bladder Molded Prepreg)  

SciTech Connect

Proof-of-Concept Manufacturing and Testing of Composite Wind Generator Blades Made by HCBMP (High Compression Bladder Molded Prepreg)

William C. Leighty; DOE Project Officer - Keith Bennett

2005-10-04T23:59:59.000Z

195

Dynamic stall occurrence on a horizontal axis wind turbine blade  

SciTech Connect

Surface pressure data from the National Renewable Energy Laboratory`s ``Combined Experiment`` were analyzed to provide a statistical representation of dynamic stall occurrence on a downwind horizontal axis wind turbine (HAWT). Over twenty thousand blade rotational cycles were each characterized at four span locations by the maximum leading edge suction pressure and by the azimuth, velocity, and yaw at which it occurred. Peak suction values at least twice that seen in static wind tunnel tests were taken to be indicative of dynamic stall. The occurrence of dynamic stall at all but the inboard station (30% span) shows good quantitative agreement with the theoretical limits on inflow velocity and yaw that should yield dynamic stall. Two hypotheses were developed to explain the discrepancy at 30% span. Estimates are also given for the frequency of dynamic stall occurrence on upwind turbines. Operational regimes were identified which minimize the occurrence of dynamic stall events.

Shipley, D.E.; Miller, M.S.; Robinson, M.C. [Colorado Univ., Boulder, CO (United States). Dept. of Aerospace Engineering Sciences

1995-07-01T23:59:59.000Z

196

Metallurgical failure analysis for a blade failed in a gas-turbine engine of a power plant  

Science Journals Connector (OSTI)

The failed gas-turbine blades (first stage blades) (type Siemens V94.2 KWU) were acquired from TNB Research Sdn. Bhd: a subsidiary of Malaysian power-generation industry (TNB, Malaysia). The blades were sectioned for metallographic investigations. The microstructural characterization involved use of both optical as well as electron microscopes including application of EPMA technique. The Microstructures were compared for three spots selection i.e. leading edge of the blade (transverse and longitudinal), trailing edge of the blade (transverse and longitudinal), and centre (near the platform of the blade) (transverse and longitudinal). The material properties and behavior at high temperature were interpreted on the basis of the observed microstructures and the phases present in the alloy. The interpretations were related to the operating conditions of the turbine blade; and main cause of failure was found to be creep damage. Recommendations have been made for improved material performance.

Zainul Huda

2009-01-01T23:59:59.000Z

197

Eddy?Current Inspection of Cracking in Land?Based Gas Turbine Blades  

Science Journals Connector (OSTI)

There has been a growing need in the electric utility industry to assess the remaining life of blades in gas turbines. It is quite important to nondestructively comprehend the depths of surface?breaking cracks in blades. Flexible eddy current array probes have been developed to overcome the major limitations of existing eddy current inspection systems. The use of an array of sensors allows cracks of all lengths to be detected and will ultimately allow real time data imaging to provide rapid inspection and easy interpretation. For this study using eddy current techniques crack detection equipment has been developed and applied to gas turbine Stage 1 blades for field use.

H. Fukutomi; T. Ogata

2004-01-01T23:59:59.000Z

198

Improving the aerodynamic efficiency of blade profile cascade used in a cooled turbine  

Science Journals Connector (OSTI)

Good effect from using rotor blade cascades, the pressure sides profile of which has a bend near the trailing edge at an angle of no larger than 15, is confirmed from the results of experimental studies.

B. I. Mamaev; M. R. Valeev

2010-09-01T23:59:59.000Z

199

Ways of improving efficiency of turbine stages having high blade height to mean diameter ratio  

Science Journals Connector (OSTI)

We propose an approximate method for profiling the blades of steam-turbine last stages with a high height to ... variable slope along the height that allows better efficiency of the turbine unit to be obtained.

G. A. Filippov; A. R. Avetisyan

2009-02-01T23:59:59.000Z

200

Recovery Act-Funded 90-m Blade Test Facility Commissioned May 18, 2011  

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

The Wind Technology Testing Center (WTTC) in Boston, Massachusetts, now offers a full suite of certification tests for turbine blades up to 90 m in length as the state-of-the-art facility opened May 18, 2011.

Note: This page contains sample records for the topic "blade aka sinoma" 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

HIGH REYNOLDS NUMBER FLOW PAST MANY BLADES IN EXTREME GROUND EFFECT  

E-Print Network (OSTI)

blades have much practical importance, such as helicopter aerodynamics, in fans, propellers, wind turbines, food mixers, hover mowers and so on (1­4). Many body interactions are also important

Purvis, Richard

202

Numerical Investigation of Temperature Distribution on a High Pressure Gas Turbine Blade  

E-Print Network (OSTI)

A numerical code is developed to calculate the temperature distributions on the surface of a gas turbine blade. This code is a tool for quick prediction of the temperatures by knowing the boundary conditions and the flow conditions, and doesn...

Zirakzadeh, Hootan

2014-08-10T23:59:59.000Z

203

Estimate of remaining life of blades in aircraft gas turbines from accumulated creep strain  

Science Journals Connector (OSTI)

The structure of a multicomponent solution to the problem of calculating the remaining life of blades on the basis of accumulated creep strain with allowance for the effect of vibration loads is ...

A. N. Vetrov; A. G. Kucher

1993-01-01T23:59:59.000Z

204

Blade tonal noise reduction using tail articulation at high Reynolds number  

E-Print Network (OSTI)

The biologically inspired method of tail articulation is investigated as a means of reducing tonal noise due to the stator wake blade interaction in underwater vehicles. This work is experimental in nature and conducted ...

Macumber, Daniel Lee, 1981-

2005-01-01T23:59:59.000Z

205

Implementation of a Biaxial Resonant Fatigue Test Method on a Large Wind Turbine Blade  

SciTech Connect

A biaxial resonant test method was utilized to simultaneously fatigue test a wind turbine blade in the flap and edge (lead-lag) direction. Biaxial resonant blade fatigue testing is an accelerated life test method utilizing oscillating masses on the blade; each mass is independently oscillated at the respective flap and edge blade resonant frequency. The flap and edge resonant frequency were not controlled, nor were they constant for this demonstrated test method. This biaxial resonant test method presented surmountable challenges in test setup simulation, control and data processing. Biaxial resonant testing has the potential to complete test projects faster than single-axis testing. The load modulation during a biaxial resonant test may necessitate periodic load application above targets or higher applied test cycles.

Snowberg, D.; Dana, S.; Hughes, S.; Berling, P.

2014-09-01T23:59:59.000Z

206

Observed acoustic and aeroelastic spectral responses of a MOD-2 turbine blade to turbulence excitation  

SciTech Connect

Early results from a recent experiment designed to directly evaluate the aeroacoustic/elastic spectral responses of a MOD-2 turbine blade to turbulence-induced unsteady blade loads are discussed. The experimental procedure consisted of flying a hot-film anemometer from a tethered balloon in the turbine in-flow and simultaneously measuring the fluctuating airload and aeroelastic response at two blade span stations (65% and 87% spans) using surface-mounted, subminiature pressure transducers and standard strain gage instrumentation. The radiated acoustic pressure field was measured with a triad of very-low-frequency microphones placed at ground level, 1.5 rotor diameters upwind of the disk. Initial transfer function estimates for acoustic radiation, blade normal forces, flapwise acceleration/displacement, and chord/flapwise moments are presented.

Kelley, N.D.; McKenna, H.E.; Jacobs, E.W.

1984-06-01T23:59:59.000Z

207

Improving the manufacturing yield of investment cast turbine blades through robust design  

E-Print Network (OSTI)

The manufacturing of turbine blades is often outsourced to investment casting foundries by aerospace companies that design and build jet engines. Aerospace companies have found that casting defects are an important cost ...

Margetts, David (David Lawrence)

2008-01-01T23:59:59.000Z

208

Effect of stress ratio on fatigue life of GFRP composites for WT blade  

Science Journals Connector (OSTI)

Fatigue life of GFRP (glass-fiber reinforced plastic) composites used in wind turbine rotor blades has been evaluated considering the glass fiber orientations. Three different laminate composites with the resp...

Yong-Hak Huh; Jae-Hyun Lee; Dong-Jin Kim

2012-07-01T23:59:59.000Z

209

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

E-Print Network (OSTI)

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

Parthasarathy, Nikhil Kaushik

2004-09-30T23:59:59.000Z

210

Stress and Fracture Analysis of a Class of Bonded Joints in Wind Turbine Blades  

E-Print Network (OSTI)

A simplified model is proposed to investigate the stress fields and the strain energy release rate (SERR) associated with cracks in bonded joints in wind turbine blades. The proposed two-dimensional model consists of nonparallel upper and lower...

Chen, Chang

2013-05-08T23:59:59.000Z

211

Effects of trailing edge flap dynamic deployment on blade-vortex interactions  

E-Print Network (OSTI)

A theoretical and experimental investigation is undertaken to determine the effects of an actively deployable trailing edge flap on the disturbances created during blade-vortex interactions (BVI). The theoretical model consists of an unsteady panel...

Nelson, Carter T.

2012-06-07T23:59:59.000Z

212

An adaptive mesh method for the simulation of Blade Vortex Interaction  

E-Print Network (OSTI)

An adaptive mesh method for the simulation of parallel ics. Blade Vortex Interaction (BV1) with an active Trailing Edge Flap (TEF) is presented. The two-dimensional 1111-steady problem is solved by a higher order upwind Euler method...

Kim, Kyu-Sup

2012-06-07T23:59:59.000Z

213

A microwear study of Clovis blades from the Gault site, Bell County, Texas  

E-Print Network (OSTI)

Prehistoric quarries in America are poorly understood and thus problematical to take into account when making inferences about past behavior. A microwear analysis of Clovis blades from the 2000 Texas A&M University excavations at the Gault site (41...

Minchak, Scott Alan

2009-06-02T23:59:59.000Z

214

FLUID FLOW MODELING OF RESIN TRANSFER MOLDING FOR COMPOSITE MATERIAL WIND TURBINE BLADE STRUCTURES  

E-Print Network (OSTI)

FLUID FLOW MODELING OF RESIN TRANSFER MOLDING FOR COMPOSITE MATERIAL WIND TURBINE BLADE STRUCTURES the guidance and direction provided by my advisors: Dr. Mandell, Dr. Cairns and Dr. Larsen. I would also like

215

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":""}]}

216

Structural Design of a Horizontal-Axis Tidal Current Turbine Composite Blade  

SciTech Connect

This paper describes the structural design of a tidal composite blade. The structural design is preceded by two steps: hydrodynamic design and determination of extreme loads. The hydrodynamic design provides the chord and twist distributions along the blade length that result in optimal performance of the tidal turbine over its lifetime. The extreme loads, i.e. the extreme flap and edgewise loads that the blade would likely encounter over its lifetime, are associated with extreme tidal flow conditions and are obtained using a computational fluid dynamics (CFD) software. Given the blade external shape and the extreme loads, we use a laminate-theory-based structural design to determine the optimal layout of composite laminas such that the ultimate-strength and buckling-resistance criteria are satisfied at all points in the blade. The structural design approach allows for arbitrary specification of the chord, twist, and airfoil geometry along the blade and an arbitrary number of shear webs. In addition, certain fabrication criteria are imposed, for example, each composite laminate must be an integral multiple of its constituent ply thickness. In the present effort, the structural design uses only static extreme loads; dynamic-loads-based fatigue design will be addressed in the future. Following the blade design, we compute the distributed structural properties, i.e. flap stiffness, edgewise stiffness, torsion stiffness, mass, moments of inertia, elastic-axis offset, and center-of-mass offset along the blade. Such properties are required by hydro-elastic codes to model the tidal current turbine and to perform modal, stability, loads, and response analyses.

Bir, G. S.; Lawson, M. J.; Li, Y.

2011-10-01T23:59:59.000Z

217

ADVANCED COMPOSITE WIND TURBINE BLADE DESIGN BASED ON DURABILITY AND DAMAGE TOLERANCE  

SciTech Connect

The objective of the program was to demonstrate and verify Certification-by-Analysis (CBA) capability for wind turbine blades made from advanced lightweight composite materials. The approach integrated durability and damage tolerance analysis with robust design and virtual testing capabilities to deliver superior, durable, low weight, low cost, long life, and reliable wind blade design. The GENOA durability and life prediction software suite was be used as the primary simulation tool. First, a micromechanics-based computational approach was used to assess the durability of composite laminates with ply drop features commonly used in wind turbine applications. Ply drops occur in composite joints and closures of wind turbine blades to reduce skin thicknesses along the blade span. They increase localized stress concentration, which may cause premature delamination failure in composite and reduced fatigue service life. Durability and damage tolerance (D&DT) were evaluated utilizing a multi-scale micro-macro progressive failure analysis (PFA) technique. PFA is finite element based and is capable of detecting all stages of material damage including initiation and propagation of delamination. It assesses multiple failure criteria and includes the effects of manufacturing anomalies (i.e., void, fiber waviness). Two different approaches have been used within PFA. The first approach is Virtual Crack Closure Technique (VCCT) PFA while the second one is strength-based. Constituent stiffness and strength properties for glass and carbon based material systems were reverse engineered for use in D&DT evaluation of coupons with ply drops under static loading. Lamina and laminate properties calculated using manufacturing and composite architecture details matched closely published test data. Similarly, resin properties were determined for fatigue life calculation. The simulation not only reproduced static strength and fatigue life as observed in the test, it also showed composite damage and fracture modes that resemble those reported in the tests. The results show that computational simulation can be relied on to enhance the design of tapered composite structures such as the ones used in turbine wind blades. A computational simulation for durability, damage tolerance (D&DT) and reliability of composite wind turbine blade structures in presence of uncertainties in material properties was performed. A composite turbine blade was first assessed with finite element based multi-scale progressive failure analysis to determine failure modes and locations as well as the fracture load. D&DT analyses were then validated with static test performed at Sandia National Laboratories. The work was followed by detailed weight analysis to identify contribution of various materials to the overall weight of the blade. The methodology ensured that certain types of failure modes, such as delamination progression, are contained to reduce risk to the structure. Probabilistic analysis indicated that composite shear strength has a great influence on the blade ultimate load under static loading. Weight was reduced by 12% with robust design without loss in reliability or D&DT. Structural benefits obtained with the use of enhanced matrix properties through nanoparticles infusion were also assessed. Thin unidirectional fiberglass layers enriched with silica nanoparticles were applied to the outer surfaces of a wind blade to improve its overall structural performance and durability. The wind blade was a 9-meter prototype structure manufactured and tested subject to three saddle static loading at Sandia National Laboratory (SNL). The blade manufacturing did not include the use of any nano-material. With silica nanoparticles in glass composite applied to the exterior surfaces of the blade, the durability and damage tolerance (D&DT) results from multi-scale PFA showed an increase in ultimate load of the blade by 9.2% as compared to baseline structural performance (without nano). The use of nanoparticles lead to a delay in the onset of delamination. Load-displacement relati

Galib Abumeri; Frank Abdi (PhD)

2012-02-16T23:59:59.000Z

218

Thermal Cyclic Creep and Long-Term Strength of the Material of Aircraft Gas Turbine Blades after Operation  

Science Journals Connector (OSTI)

The remaining thermal cyclic creep and long-term strength life of the material of aircraft gas turbine blades after operation has been determined experimentally....

B. S. Karpinos; V. V. Samuleev; B. A. Lyashenko; E. V. Laiske

2013-09-01T23:59:59.000Z

219

Foreign object damage on the leading edge of gas turbine blades  

Science Journals Connector (OSTI)

Abstract The severe damages to the leading edge of aircraft blades occur when millimeter-sized particles such as sands, gravels or even the pieces of the engine components impact those of blades, which is called hard body impact or foreign object damage. This damage produces the geometry discontinuity such as the notch on the blades which becomes the site for fatigue crack initiation. FOD on the leading edge of the turbine blade is done by using the finite element method in this paper. Experimental stress analysis is performed for investigating the stress concentration factor at the crater base and is compared with the data from the finite element and the analytical method. The comparison shows that the finite element method results agree well with the experimental and analytical data at the crater base. Then the residual stress along the largest blade length is obtained for the potential crack initiating regions, and at the end, the analysis focuses on the comparison between the quasi-static indentation and fully dynamic impact for three critical locations where the tensile residual stresses cause crack initiation.

Seyed Masoud Marandi; Kh. Rahmani; Mehdi Tajdari

2014-01-01T23:59:59.000Z

220

Comparison of strength and load-based methods for testing wind turbine blades  

SciTech Connect

The purpose of this paper is to compare two methods of blade test loading and show how they are applied in an actual blade test. Strength and load-based methods were examined to determine the test load for an Atlantic Orient Corporation (AOC) 15/50 wind turbine blade for fatigue and static testing. Fatigue load-based analysis was performed using measured field test loads extrapolated for extreme rare events and scaled to thirty-year spectra. An accelerated constant amplitude fatigue test that gives equivalent damage at critical locations was developed using Miner`s Rule and the material S-N curves. Test load factors were applied to adjust the test loads for uncertainties, and differences between the test and operating environment. Similar analyses were carried, out for the strength-based fatigue test using the strength of the blade and the material properties to determine the load level and number of constant amplitude cycles to failure. Static tests were also developed using load and strength criteria. The resulting test loads were compared and contrasted. The analysis shows that, for the AOC 15/50 blade, the strength-based test loads are higher than any of the static load-based cases considered but were exceeded in the fatigue analysis for a severe hot/wet environment.

Musial, W.D.; Clark, M.E.; Egging, N. [and others

1996-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "blade aka sinoma" 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

Wind turbine blade fatigue tests: lessons learned and application to SHM system development  

SciTech Connect

This paper presents experimental results of several structural health monitoring (SHM) methods applied to a 9-meter CX-100 wind turbine blade that underwent fatigue loading. The blade was instrumented with piezoelectric transducers, accelerometers, acoustic emission sensors, and foil strain gauges. It underwent harmonic excitation at its first natural frequency using a hydraulically actuated resonant excitation system. The blade was initially excited at 25% of its design load, and then with steadily increasing loads until it failed. Various data were collected between and during fatigue loading sessions. The data were measured over multiple frequency ranges using a variety of acquisition equipment, including off-the-shelf systems and specially designed hardware developed by the authors. Modal response, diffuse wave-field transfer functions, and ultrasonic guided wave methods were applied to assess the condition of the wind turbine blade. The piezoelectric sensors themselves were also monitored using a sensor diagnostics procedure. This paper summarizes experimental procedures and results, focusing particularly on fatigue crack detection, and concludes with considerations for implementing such damage identification systems, which will be used as a guideline for future SHM system development for operating wind turbine blades.

Taylor, Stuart G. [Los Alamos National Laboratory; Farinholt, Kevin M. [Los Alamos National Laboratory; Jeong, Hyomi [Chonbuk National University, Korea; Jang, JaeKyung [Chonbuk National University, Korea; Park, Gyu Hae [Los Alamos National Laboratory; Todd, Michael D. [Los Alamos National Laboratory; Farrar, Charles R. [Los Alamos National Laboratory; Ammerman, Curtt N. [Los Alamos National Laboratory

2012-06-28T23:59:59.000Z

222

Improved methodology for design of low wind speed specific wind turbine blades  

Science Journals Connector (OSTI)

Abstract The majority of wind power is currently produced on high wind speed sites, and the standard design of wind turbine blades has evolved to be structurally efficient under these conditions. Recently, sites with lower quality wind resources have begun to be considered for new wind farms. This study confirms the expectation that the standard high wind speed design process results in less efficient structures when used for low wind speed conditions, and that a low wind speed specific design process is able to yield structural improvements. A comparative structural analysis of generic blades from high and low wind speed turbines quantifies the differences in structural performance between high and low wind speed blades, and indicates the ways in which the standard design process should be modified to suit a low wind speed specific design. An improved design method specifically for low wind speed blades is proposed, with more emphasis on stiffness than in the standard high wind speed design. The improved design process results in a lighter and cheaper blade than the conventionally designed one, whilst still fulfilling the design requirements.

R.H. Barnes; E.V. Morozov; K. Shankar

2015-01-01T23:59:59.000Z

223

Weekly Wrap-Up: Testing Wind Blades, Converting Carbon Emissions, and  

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

Weekly Wrap-Up: Testing Wind Blades, Converting Carbon Emissions, Weekly Wrap-Up: Testing Wind Blades, Converting Carbon Emissions, and Eco-Driving Weekly Wrap-Up: Testing Wind Blades, Converting Carbon Emissions, and Eco-Driving July 23, 2010 - 5:17pm Addthis Elizabeth Meckes Elizabeth Meckes Director of User Experience & Digital Technologies, Office of Public Affairs On Thursday, Secretary Chu announced six projects that aim to find ways of convert captured carbon dioxide (CO2) emissions from industrial sources into useful products. The innovative projects - funded with $106 million from the American Recovery and Reinvestment Act and matched with $156 million in private cost-share - will seek to use CO2 emissions from industrial sources to create useful products such as fuel, plastics, cement, and fertilizers. Find out more here.

224

Department of Energy to Invest up to $4 Million for Wind Turbine Blade  

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

up to $4 Million for Wind Turbine up to $4 Million for Wind Turbine Blade Testing Facilities Department of Energy to Invest up to $4 Million for Wind Turbine Blade Testing Facilities June 25, 2007 - 2:07pm Addthis New facilities in Massachusetts and Texas will bring cutting-edge technology to wind research WASHINGTON, DC - The U.S. Department of Energy (DOE) Secretary Samuel W. Bodman today announced that DOE has selected the Commonwealth of Massachusetts Partnership in Massachusetts, and the Lone Star Wind Alliance in Texas, to each receive up to $2 million in test equipment to develop large-scale wind blade test facilities, accelerating the commercial availability of wind energy. These consortia have been selected to negotiate cooperative research and development agreements (CRADAs) to

225

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

226

Source level model for propeller blade rate radiation for the worlds merchant fleet  

Science Journals Connector (OSTI)

A model is developed for the acoustic source strength of blade rate line energy produced by single?screw merchant vessels. These source strengths are based on observed cavitation time histories on merchant vessels and on limitations imposed by considerations of propeller design procedures and ship vibration criteria. Relationships are presented for the expected value of the blade rate source strength for ships of different lengths expressed both as a monopole source strength located at a known depth below a free surface and as a dipole source strength that describes the pressure radiated to the farfield. These relationships are based on a small sample of merchant shipcharacteristics and are exercised for the estimated population of ships at sea. This calculation yields a statistical description of the distribution of source level and frequency of propeller blade rate acoustic energy for the fleet of single?screw merchant vessels.

Leslie M. Gray; David S. Greeley

1980-01-01T23:59:59.000Z

227

The determination of stochastic loads on horizontal axis wind turbine blades  

SciTech Connect

The FAST Code which is capable of determining structural loads of a flexible, teetering, horizontal axis wind turbine is described and comparisons of calculated loads with test data are given at two wind speeds for the ESI-80. The FAST Code models a two-bladed HAWT with degrees-of-freedom for blade bending, teeter, drive train flexibility, yaw, and windwise and crosswind tower motion. The code allows blade dimensions, stiffnesses, and weights to differ and the code models tower shadow, wind shear, and turbulence. Additionally, dynamic stall is included as are delta-3 and an underslung rotor. Load comparisons are made with ESI-80 test data in the form of power spectral density, rainflow counting occurrence histograms, and azimuth averaged bin plots. It is concluded that agreement between the FAST Code and test results is good.

Freeman, L.N.; Wilson, R.E. [Oregon State Univ., Corvallis, OR (United States). Dept. of Mechanical Engineering

1998-05-01T23:59:59.000Z

228

Deflection Shape Reconstructions of a Rotating Five-blade Helicopter Rotor from TLDV Measurements  

SciTech Connect

Helicopters are aircraft machines which are subjected to high level of vibrations, mainly due to spinning rotors. These are made of two or more blades attached by hinges to a central hub, which can make the dynamic behaviour difficult to study. However, they share some common dynamic properties with the ones expected in bladed discs, thereby the analytical modelling of rotors can be performed using some assumptions as the ones adopted for the bladed discs. This paper presents results of a vibrations study performed on a scaled helicopter rotor model which was rotating at a fix rotational speed and excited by an air jet. A simplified analytical model of that rotor was also produced to help the identifications of the vibration patterns measured using a single point tracking-SLDV measurement method.

Fioretti, A.; Castellini, P.; Tomasini, E. P. [Universita Politecnica delle Marche, Dipartimento di Meccanica, Ancona (Italy); Di Maio, D.; Ewins, D. J. [University of Bristol, Aerospace Department, Bristol (United Kingdom)

2010-05-28T23:59:59.000Z

229

Comparative Investigation of Blade Lean Effect in Hydrogen?Fueled Combustion Turbine  

Science Journals Connector (OSTI)

Recently environmental problems have been actively researched all over the world. To overcome air pollution and fossil fuel exhaustion we have been investigating a hydrogen?fueled propulsion system. In the system hydrogen is injected from the turbine blade and/or vane surface. The system can realize higher power lighter weight and lower emission than conventional systems. However there exist many problems for the realization. One of them is the extremely high temperature region appearing on the wall. In the present study we clarify the effect of blade lean on the generation of high temperature region. The combusting turbulent flowfield around a normal a compound lean and a reverse compound lean blades are simulated using RANS and 5?step reduced combustion model. Comparing the numerical results it is confirmed that compound lean is promising to suppress the high temperature region.

R. Nakamura; M. Suzuki; M. Yamamoto

2011-01-01T23:59:59.000Z

230

Remote Monitoring of the Structural Health of Hydrokinetic Composite Turbine Blades  

SciTech Connect

A health monitoring approach is investigated for hydrokinetic turbine blade applications. In-service monitoring is critical due to the difficult environment for blade inspection and the cost of inspection downtime. Composite blade designs have advantages that include long life in marine environments and great control over mechanical properties. Experimental strain characteristics are determined for static loads and free-vibration loads. These experiments are designed to simulate the dynamic characteristics of hydrokinetic turbine blades. Carbon/epoxy symmetric composite laminates are manufactured using an autoclave process. Four-layer composite beams, eight-layer composite beams, and two-dimensional eight-layer composite blades are instrumented for strain. Experimental results for strain measurements from electrical resistance gages are validated with theoretical characteristics obtained from in-house finite-element analysis for all sample cases. These preliminary tests on the composite samples show good correlation between experimental and finite-element strain results. A health monitoring system is proposed in which damage to a composite structure, e.g. delamination and fiber breakage, causes changes in the strain signature behavior. The system is based on embedded strain sensors and embedded motes in which strain information is demodulated for wireless transmission. In-service monitoring is critical due to the difficult environment for blade inspection and the cost of inspection downtime. Composite blade designs provide a medium for embedding sensors into the blades for in-situ health monitoring. The major challenge with in-situ health monitoring is transmission of sensor signals from the remote rotating reference frame of the blade to the system monitoring station. In the presented work, a novel system for relaying in-situ blade health measurements in hydrokinetic systems is described and demonstrated. An ultrasonic communication system is used to transmit sensor data underwater from the rotating frame of the blade to a fixed relay station. Data are then broadcast via radio waves to a remote monitoring station. Results indicate that the assembled system can transmit simulated sensor data with an accuracy of ±5% at a maximum sampling rate of 500 samples/sec. A power investigation of the transmitter within the blade shows that continuous max-sampling operation is only possible for short durations (~days), and is limited due to the capacity of the battery power source. However, intermittent sampling, with long periods between samples, allows for the system to last for very long durations (~years). Finally, because the data transmission system can operate at a high sampling rate for short durations or at a lower sampling rate/higher duty cycle for long durations, it is well-suited for short-term prototype and environmental testing, as well as long-term commercially-deployed hydrokinetic machines.

J.L. Rovey

2012-09-21T23:59:59.000Z

231

Supply Chain and Blade Manufacturing Considerations in the Global Wind Industry (Presentation)  

SciTech Connect

This briefing provides an overview of supply chain developments in the global wind industry and a detailed assessment of blade manufacturing considerations for U.S. end-markets. The report discusses the international trade flows of wind power equipment, blade manufacturing and logistical costs, and qualitative issues that often influence factory location decisions. To help guide policy and research and development strategy decisions, this report offers a comprehensive perspective of both quantitative and qualitative factors that affect selected supply chain developments in the growing wind power industry.

James, T.; Goodrich, A.

2013-12-01T23:59:59.000Z

232

Analysis of SNL/MSU/DOE fatigue database trends for wind turbine blade materials.  

SciTech Connect

This report presents an analysis of trends in fatigue results from the Montana State University program on the fatigue of composite materials for wind turbine blades for the period 2005-2009. Test data can be found in the SNL/MSU/DOE Fatigue of Composite Materials Database which is updated annually. This is the fifth report in this series, which summarizes progress of the overall program since its inception in 1989. The primary thrust of this program has been research and testing of a broad range of structural laminate materials of interest to blade structures. The report is focused on current types of infused and prepreg blade materials, either processed in-house or by industry partners. Trends in static and fatigue performance are analyzed for a range of materials, geometries and loading conditions. Materials include: sixteen resins of three general types, five epoxy based paste adhesives, fifteen reinforcing fabrics including three fiber types, three prepregs, many laminate lay-ups and process variations. Significant differences in static and fatigue performance and delamination resistance are quantified for particular materials and process conditions. When blades do fail, the likely cause is fatigue in the structural detail areas or at major flaws. The program is focused strongly on these issues in addition to standard laminates. Structural detail tests allow evaluation of various blade materials options in the context of more realistic representations of blade structure than do the standard test methods. Types of structural details addressed in this report include ply drops used in thickness tapering, and adhesive joints, each tested over a range of fatigue loading conditions. Ply drop studies were in two areas: (1) a combined experimental and finite element study of basic ply drop delamination parameters for glass and carbon prepreg laminates, and (2) the development of a complex structured resin-infused coupon including ply drops, for comparison studies of various resins, fabrics and pry drop thicknesses. Adhesive joint tests using typical blade adhesives included both generic testing of materials parameters using a notched-lap-shear test geometry developed in this study, and also a series of simulated blade web joint geometries fabricated by an industry partner.

Mandell, John F. (Montana State University, Bozeman, MT); Ashwill, Thomas D.; Wilson, Timothy J. (Montana State University, Bozeman, MT); Sears, Aaron T. (Montana State University, Bozeman, MT); Agastra, Pancasatya (Montana State University, Bozeman, MT); Laird, Daniel L.; Samborsky, Daniel D. (Montana State University, Bozeman, MT)

2010-12-01T23:59:59.000Z

233

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.

234

A Predictive Maintenance Policy Based on the Blade of Offshore Wind Wenjin Zhu, Troyes University of Technology  

E-Print Network (OSTI)

A Predictive Maintenance Policy Based on the Blade of Offshore Wind Turbine Wenjin Zhu, Troyes, Paris-Erdogan law, rotor blade, wind turbine SUMMARY & CONCLUSIONS Based on the modeling and the better quality of the wind resource in the sea, the installation of wind turbines is shifting from

McCalley, James D.

235

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

DOE Patents (OSTI)

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

Wetzel, Kyle Kristopher

2014-06-24T23:59:59.000Z

236

Experimental study of blade thickness effects on the overall and local performances of a Controlled Vortex Designed axial-flow fan  

E-Print Network (OSTI)

of thick blades could lead to a good compromise between aerodynamic and acoustic performances, on a wider af- fect both their overall and acoustical performances. An example of one parameter for actuators then implies thicker blades. The rotomoulding process -- previously tested for wind turbine blades

Boyer, Edmond

237

To cite this document: Barbiero, Franck and Vincent, Franois and Deloues, Thierry and Letestu, Franck Effects of rotor blade modulation on GNSS anti-jamming algorithms.  

E-Print Network (OSTI)

, Franck Effects of rotor blade modulation on GNSS anti-jamming algorithms. (2014) In: ION International be sent to the repository administrator: staff-oatao@inp-toulouse.fr #12;Effects of rotor blade modulation rotating bodies, the signal undergo complex and non-stationary effects called Rotor Blade Modulation (RBM

Mailhes, Corinne

238

ZhongHang Baoding Huiteng Windpower Equipment Co Ltd HT Blade | Open Energy  

Open Energy Info (EERE)

ZhongHang Baoding Huiteng Windpower Equipment Co Ltd HT Blade ZhongHang Baoding Huiteng Windpower Equipment Co Ltd HT Blade Jump to: navigation, search Name ZhongHang (Baoding) Huiteng Windpower Equipment Co Ltd (HT Blade) Place Baoding, Hebei Province, China Zip 71051 Sector Wind energy Product Leading supplier of wind turbine blades in China. Coordinates 38.855011°, 115.480217° 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":38.855011,"lon":115.480217,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

239

Structural and Damage Assessment of Multi-Section Modular Hybrid Composite Wind Turbine Blade  

E-Print Network (OSTI)

the size of wind turbines to generate higher power output. Typically, the larger/longer blade designs rely on hybrid material systems such as carbon and/or glass fiber (CF/GF) reinforced polymers to improve specific stiffness/strength and damage tolerance...

Nanami, Norimichi

2014-07-25T23:59:59.000Z

240

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

Note: This page contains sample records for the topic "blade aka sinoma" 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

Concurrent Aerodynamic Optimization of Rotor Blades Using a Nash Game Method  

E-Print Network (OSTI)

Concurrent Aerodynamic Optimization of Rotor Blades Using a Nash Game Method Enric Roca Le´on Ph Aerodynamics Leader, Airbus Helicopter, Marignane, France Michel Costes Research Engineer, ONERA, Meudon OF THE AMERICAN HELICOPTER SOCIETY Abstract A multi-objective strategy adapted to the aerodynamic concurrent

Paris-Sud XI, Université de

242

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

243

Latest advances in steam turbine design, blading, repairs, condition assessment, and condenser interaction  

SciTech Connect

This book contains papers presented at a conference on power generation. Topics covered include: a life extension approach for steam turbine blading in Electricite de France fossil plants, and on site 430 MW high pressure reheat turbine shell cracking and distortion repairs.

Rasmussen, D.M. (Turbine Consultants, Inc., Milwaukee, WI (US))

1989-01-01T23:59:59.000Z

244

DAMAGE DETECTION IN A WIND TURBINE BLADE BASED ON TIME SERIES Simon Hoell, Piotr Omenzetter  

E-Print Network (OSTI)

DAMAGE DETECTION IN A WIND TURBINE BLADE BASED ON TIME SERIES METHODS Simon Hoell, Piotr Omenzetter, the consequences are growing sizes of wind turbines (WTs) and erections in remote places, such as off in the past years, thus efficient energy harvesting becomes more important. For the sector of wind energy

Boyer, Edmond

245

OPERATIONAL MODAL ANALYSIS AND WAVELET TRANSFORMATION FOR DAMAGE IDENTIFICATION IN WIND TURBINE BLADES  

E-Print Network (OSTI)

OPERATIONAL MODAL ANALYSIS AND WAVELET TRANSFORMATION FOR DAMAGE IDENTIFICATION IN WIND TURBINE-frequency modes. KEYWORDS : Wind Turbine Blades, Debonding, Wavelet Transformation, Operational Modal Analysis. INTRODUCTION While failure can happen in any structural component of the wind turbine, one of the most common

Paris-Sud XI, Université de

246

Geek-Up[09.17.2010]-- Water Blades, Biomass Conversion and Antineutrino Detection  

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

Scientists have engineered a blade of water thats strong enough and fast enough to penetrate through steel, which will help soldiers in Afghanistan disable deadly IEDs, plus researchers are currently testing an aboveground water-based antineutrino detector that will improve monitoring capabilities at nuclear facilities.

247

CAN-bus based distributed control system for hydraulic turbine blade repairing robot  

Science Journals Connector (OSTI)

A CAN-bus (Controller Area Network) based distributed control system was designed for a mobile on-site hydraulic turbine blade repairing robot (HTBRR). The system is composed of one supervisory station, seven joint servo nodes, and four accessory nodes. ... Keywords: distributed control system, mobile robot, virtual reality

Kangtai Xiang; Zhenguo Sun; Hongjun Dai; Qiang Chen; Jiajun Liu

2010-11-01T23:59:59.000Z

248

Control of residual stresses in tests of technological processes of producing compressor blades for gas turbine engines  

Science Journals Connector (OSTI)

The article describes experience with inducing and controlling residual surface stresses in compressor blades made of titanium alloys. It was established that these stresses have a substantial effect on the fa...

V. A. Boguslaev

1991-03-01T23:59:59.000Z

249

Certain peculiarities of Zr?Cr?N coatings on steel blades of a gas-turbine engine compressor  

Science Journals Connector (OSTI)

The properties of compressor blades of a helicopter gas-turbine engine with an experimental ionplasma coating Zr? ... -resistant, and mitigate the dependence of their residual properties on the amplitude and the ...

V. A. Styazhkin; A. A. Kopylov; S. Ya. Paleeva; Yu. G. Veksler

250

Assessment of crack growth in a space shuttle main engine first-stage high-pressure fuel turbopump blade  

Science Journals Connector (OSTI)

A two-dimensional finite element fracture mechanics analysis of a space shuttle main engine (SSME) turbine blade firtree was performed using the MARC finite element code. The analysis was conducted under combined effects of thermal and mechanical loads ...

Ali Abdul-Aziz

2002-11-01T23:59:59.000Z

251

A Study of the Causes of the Service Fracture of Turbine Rotor Blade of Compressor Station Gas-Turbine Unit  

Science Journals Connector (OSTI)

On the basis of structural and fractographic the analysis of the fractured surface of working turbine blade of GTK-10-2 gas-turbine unit of compressor station it is established...

A. Ya. Krasovskyi; O. E. Gopkalo; I. O. Makovetska; O. O. Yanko

2013-07-01T23:59:59.000Z

252

Investigation of Dynamic Aerodynamics and Control of Wind Turbine Sections Under Relevant Inflow/Blade Attitude Conditions  

SciTech Connect

The growth of wind turbines has led to highly variable loading on the blades. Coupled with the relative reduced stiffness of longer blades, the need to control loading on the blades has become important. One method of controlling loads and maximizing energy extraction is local control of the flow on the wind turbine blades. The goal of the present work was to better understand the sources of the unsteady loading and then to control them. This is accomplished through an experimental effort to characterize the unsteadiness and the effect of a Gurney flap on the flow, as well as an analytical effort to develop control approaches. It was planned to combine these two efforts to demonstrate control of a wind tunnel test model, but that final piece still remains to be accomplished.

Naughton, Jonathan W. [University of Wyoming

2014-08-05T23:59:59.000Z

253

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

254

Deposition of Alternative (Syngas) Fuels on Turbine Blades with Film Cooling  

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

ACERC ACERC Dr. Jeffrey Bons and Dr. Thomas Fletcher BRIGHAM YOUNG UNIVERSITY SCIES Project 05-01-SR-120 with support from General Electric, Siemens-Westinghouse, Solar Turbines, Praxair UTSR Peer Workshop III, Clemson University, SC Oct. 18-20, 2005 Deposition of Alternative ( Deposition of Alternative ( Syngas Syngas ) Fuels on ) Fuels on Turbine Blades with Film Cooling Turbine Blades with Film Cooling Alternate fuels (e.g. coal, petcoke, and biomass) are being cons Alternate fuels (e.g. coal, petcoke, and biomass) are being cons idered to idered to produce produce syngas syngas fuels to replace natural gas in power turbines fuels to replace natural gas in power turbines Despite gas cleanup, small levels of airborne particulate (e.g. Despite gas cleanup, small levels of airborne particulate (e.g. 0.1 0.1 ppmw

255

Aerodynamic Losses and Heat Transfer in a Blade Cascade with 3-D Endwall Contouring  

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

Aerodynamic Losses and Heat Transfer in a Aerodynamic Losses and Heat Transfer in a Aerodynamic Losses and Heat Transfer in a Aerodynamic Losses and Heat Transfer in a Blade Cascade with 3 Blade Cascade with 3 - - D D Endwall Endwall Contouring Contouring Principal Investigator Principal Investigator Sumanta Acharya, Professor Sumanta Acharya, Professor Louisiana State University, Baton Rouge, Louisiana Louisiana State University, Baton Rouge, Louisiana Collaborators Collaborators Gazi Mahmood, Ph.D., Research Asqociate Gazi Mahmood, Ph.D., Research Asqociate Arun Saha, Ph.D., Research Associate Arun Saha, Ph.D., Research Associate Ross Gustafson, M.S. student Ross Gustafson, M.S. student SCIES Project 02 SCIES Project 02 - - 01 01 - - SR098 SR098 DOE COOPERATIVE AGREEMENT DE DOE COOPERATIVE AGREEMENT DE - - FC26 FC26 - - 02NT41431 02NT41431 Tom J. George, Program Manager, DOE/NETL

256

Sustainable Energy Solutions Task 4.2: UV Degradation Prevention on Fiber-Reinforced Composite Blades  

SciTech Connect

EXECUTIVE SUMARRY Use of wind energy has expanded very quickly because of the energy prices, environmental concerns and improved efficiency of wind generators. Rather than using metal and alloy based wind turbine blades, larger size fiber (glass and carbon) reinforced composite blades have been recently utilized to increase the efficiency of the wind energy in both high and low wind potential areas. In the current composite manufacturing, pre-preg and vacuum-assisted/heat sensitive resin transfer molding and resin infusion methods are employed. However, these lighter, stiffer and stronger composite blades experience ultraviolet (UV) light degradation where polymers (epoxies and hardeners) used for the blades manufacturing absorb solar UV lights, and cause photolytic, thermo-oxidative and photo-oxidative reactions resulting in breaking of carbon-hydrogen bonds, polymer degradation and internal and external stresses. One of the main reasons is the weak protective coatings/paints on the composite blades. This process accelerates the aging and fatigue cracks, and reduces the overall mechanical properties of the blades. Thus, the lack of technology on coatings for blade manufacturing is forcing many government agencies and private companies (local and national windmill companies) to find a better solution for the composite wind blades. Kansas has a great wind potential for the future energy demand, so efficient wind generators can be an option for continuous energy production. The research goal of the present project was to develop nanocomposite coatings using various inclusions against UV degradation and corrosion, and advance the fundamental understanding of degradation (i.e., physical, chemical and physiochemical property changes) on those coatings. In pursuit of the research goal, the research objective of the present program was to investigate the effects of UV light and duration on various nanocomposites made mainly of carbon nanotubes and graphene nanoflakes, contribute the valuable information to this emerging field of advanced materials and manufacturing and advance the Kansas economy through creation of engineering knowledge and products in the wind energy. The proposed work was involved in a multidisciplinary research program that incorporates nanocomposite fabrication, advanced coating, characterization, surface and colloidal chemistry, physicochemistry, corrosion science, and analysis with a simple and effective testing methodology. The findings were closely related to our hypothesis and approaches that we proposed in this proposal. The data produced in the study offered to advance the physical understanding of the behavior of nanostructured materials for the prevention of UV light at different exposure time and salt fogging. Founding of this proposal enabled the first UV resistive nanocomposite corrosion coating effort in Kansas to impact the local and national wind mill industry. Results of this program provided valuable opportunities for the multidisciplinary training of undergraduate and graduate students at Wichita State University (WSU), as well as a number of aircraft companies (e.g., Cessna, Hawker Beechcraft, Spirit, Boeing and Bombardier/Learjet) and other local and regional industries.

Janet M. Twomey, PhD

2010-04-30T23:59:59.000Z

257

All-small-molecule efficient white organic light-emitting diodes by multi-layer blade coating  

E-Print Network (OSTI)

Letter All-small-molecule efficient white organic light-emitting diodes by multi-layer blade-molecule organic light-emitting diodes are fabricated by multi-layer blade coating on hot plate at 80 °C with hot.3 lm/W). Orange emitter iridium(III)bis (4-(4-t-butylphenyl) thie- no[3,2-c]pyridinato-N,C20

Meng, Hsin-Fei

258

Materials Issues in Innovative Turbine Blade Designs - Oak Ridge National Laboratory  

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

Materials Issues in Innovative Turbine Materials Issues in Innovative Turbine Blade Designs-Oak Ridge National Laboratory Background Gas turbine efficiency and service life are strongly affected by the turbine expansion process, where the working fluid's high thermal energy gas is converted into mechanical energy to drive the compressor and the electric generator. The most effective way to increase the efficiency of the expansion process is to raise the temperature of the turbine's working fluid.

259

Design, prototyping and experimental testing of a chiral blade system for hydroelectric microgeneration  

Science Journals Connector (OSTI)

With the aim of investigating the applicative possibilities of chiral blade turbines in obtaining energy from water conduits with low velocity of flow, the present study traces a design procedure, defining analytical tools and identifying various expedients which can guide the effective choice of the functional parameters of the device and allow a preliminary estimation of the quantities in play, confirming their suitability by the construction of a prototype and its functional characterisation as a real device.

F. Giudice; G. La Rosa

2009-01-01T23:59:59.000Z

260

Computer subroutine for estimating aerodynamic blade loads on Darrieus vertical axis wind turbines. [FORCE code  

SciTech Connect

An important aspect of structural design of the Darrieus rotor is the determination of aerodynamic blade loads. This report describes a load generator which has been used at Sandia for quasi-static and dynamic rotor analyses. The generator is based on the single streamtube aerodynamic flow model and is constructed as a FORTRAN IV subroutine to facilitate its use in finite element structural models. Input and output characteristics of the subroutine are described and a complete listing is attached as an appendix.

Sullivan, W. N.; Leonard, T. M.

1980-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "blade aka sinoma" 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

Simulating Blade-Strike on Fish passing through Marine Hydrokinetic Turbines  

SciTech Connect

The study reported here evaluated the occurrence, frequency, and intensity of blade strike of fish on an axial-flow marine hydrokinetic turbine by using two modeling approaches: a conventional kinematic formulation and a proposed Lagrangian particle- based scheme. The kinematic model included simplifying assumptions of fish trajectories such as distribution and velocity. The proposed method overcame the need for such simplifications by integrating the following components into a computational fluid dynamics (CFD) model: (i) advanced eddy-resolving flow simulation, (ii) generation of ambient turbulence based on field data, (iii) moving turbine blades in highly transient flows, and (iv) Lagrangian particles to mimic the potential fish pathways. The test conditions to evaluate the blade-strike probability and fish survival rate were: (i) the turbulent environment, (ii) the fish size, and (iii) the approaching flow velocity. The proposed method offered the ability to produce potential fish trajectories and their interaction with the rotating turbine. Depending upon the scenario, the percentile of particles that registered a collision event ranged from 6% to 19% of the released sample size. Next, by using a set of experimental correlations of the exposure-response of living fish colliding with moving blades, the simulated collision data were used as input variables to estimate the survival rate of fish passing through the operating turbine. The resulting survival rates were greater than 96% in all scenarios, which is comparable to or better than known survival rates for conventional hydropower turbines. The figures of strike probability and mortality rate were amplified by the kinematic model. The proposed method offered the advantage of expanding the evaluation of other mechanisms of stress and injury on fish derived from hydrokinetic turbines and related devices.

Romero Gomez, Pedro DJ; Richmond, Marshall C.

2014-06-16T23:59:59.000Z

262

High Temperature Capabililty and Innovative Cooling with a Spar and Shell Turbine Blade - Florida Turbine Technologies  

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

Temperature Capability and Temperature Capability and Innovative Cooling with a Spar and Shell Turbine Blade-Florida Turbine Technologies Background Florida Turbine Technologies, Inc. (FTT) is currently developing advanced aerothermal technologies centered on spar and shell airfoil concepts meant to provide highly durable turbine components that require the lowest cooling flow possible. The spar-shell system represents a unique opportunity for the use of advanced, high-temperature materials

263

Results of the DF-4 BWR (boiling water reactor) control blade-channel box test  

SciTech Connect

The DF-4 in-pile fuel damage experiment investigated the behavior of boiling water reactor (BWR) fuel canisters and control blades in the high temperature environment of an unrecovered reactor accident. This experiment, which was carried out in the Annular Core Research Reactor (ACRR) at Sandia National Laboratories, was performed under the USNRC's internationally sponsored severe fuel damage (SFD) program. The DF-4 test is described herein and results from the experiment are presented. Important findings from the DF-4 test include the low temperature melting of the stainless steel control blade caused by reaction with the B{sub 4}C, and the subsequent low temperature attack of the Zr-4 channel box by the relocating molten blade components. Hydrogen generation was found to continue throughout the experiment, diminishing slightly following the relocation of molten oxidizing zircaloy to the lower extreme of the test bundle. A large blockage which was formed from this material continued to oxidize while steam was being fed into the the test bundle. The results of this test have provided information on the initial stages of core melt progression in BWR geometry involving the heatup and cladding oxidation stages of a severe accident and terminating at the point of melting and relocation of the metallic core components. The information is useful in modeling melt progression in BWR core geometry, and provides engineering insight into the key phenomena controlling these processes. 12 refs., 12 figs.

Gauntt, R.O.; Gasser, R.D.

1990-10-01T23:59:59.000Z

264

Enhancement of soft X-ray lasing action with thin blade radiators  

DOE Patents (OSTI)

An enhancement of approximately 100 of stimulated emission over spontaneous emission of the CVI 182 Angstrom line was obtained in a recombining magnetically confined plasma column. The plasma was formed by focusing a CO.sub.2 laser beam on a carbon disc. A magnetic solenoid produced a strong magnetic field which confined the plasma to the shape of a column. A single thin carbon blade extended parallel to the plasma column and served to make the column axially more uniform and also acted as a heat sink. Axial and transverse measurements of the soft X-ray lasing action were made from locations off-set from the central axis of the plasma column. Multiple carbon blades located at equal intervals around the plasma column were also found to produce acceptable results. According to another embodiment 10 a thin coating of aluminum or magnesium was placed on the carbon disc and blade. The Z of the coating should preferably be at least 5 greater than the Z of the target. Measurements of the soft X-rays generated at 182 Angstroms showed a significant increase in intensity enhancement.

Suckewer, Szymon (Princeton Junction, NJ); Skinner, Charles H. (Kingston, NJ); Voorhees, David R. (Hopewell, NJ)

1988-01-01T23:59:59.000Z

265

Computational fluid dynamics study of wind turbine blade profiles at low Reynolds numbers for various angles of attack  

Science Journals Connector (OSTI)

Airfoil data are rarely available for Angles Of Attack (AOA) over the entire range of 180. This is unfortunate for the wind turbine designers because wind turbine airfoils do operate over this entire range. In this paper an attempt is made to study the lift and drag forces on a wind turbine blade at various sections and the effect of angle of attack on these forces. Aerodynamic simulations of the steady flow past two-dimensional wind-turbine blade-profiles developed by the National Renewable Energy Laboratory (NREL) at low Reynolds number will be performed. The aerodynamic simulation will be performed using Computational Fluid Dynamics (CFD) techniques. The governing equations used in the simulations are the Reynolds-Average-Navier-Stokes (RANS) equations. The simulations at different wind speeds will be performed on the S809 and the S826 blade profiles. The S826 blade profile is considered in this study because it is the most suitable blade profile for the wind conditions in Egypt in the site of Gulf El-Zayt on the red sea. Lift and drag forces along with the angle of attack are the important parameters in a wind turbine system. These parameters determine the efficiency of the wind turbine. The lift and drag forces are computed over the entire range of AOA of 180 at low Reynolds numbers. The results of the analysis showed that the AOA between 3 and 8 have high Lift/Drag ratio regardless of the wind speed and the blade profile. The numerical results are compared with wind tunnel measurements at the available limited range of the angle of attack. In addition the numerical results are compared with the results obtained from the equations developed by Viterna and Janetzke for deep stall. The comparisons showed that the used CFD code can accurately predict the aerodynamic loads on the wind-turbine blades.

2012-01-01T23:59:59.000Z

266

Fish Passage Assessment of an Advanced Hydropower Turbine and Conventional Turbine Using Blade-strike Modeling  

SciTech Connect

In the Columbia and Snake River basins, several species of Pacific salmon were listed under the Endangered Species Act of 1973 due to significant declines of fish population. Dam operators and design engineers are thus faced with the task of making those hydroelectric facilities more ecologically friendly through changes in hydro-turbine design and operation. Public Utility District No. 2 of Grant County, Washington, applied for re-licensing from the U.S. Federal Energy Regulatory Commission to replace the 10 turbines at Wanapum Dam with advanced hydropower turbines that were designed to increase power generation and improve fish passage conditions. We applied both deterministic and stochastic blade-strike models to the newly installed turbine and an existing turbine. Modeled probabilities were compared to the results of a large-scale live fish survival study and a sensor fish study under the same operational parameters. Overall, injury rates predicted by the deterministic model were higher than experimental rates of injury while those predicted by the stochastic model were in close agreement with experiment results. Fish orientation at the time of entry into the plane of the leading edges of the turbine runner blades was an important factor contributing to uncertainty in modeled results. The advanced design turbine had slightly higher modeled injury rates than the existing turbine design; however, there was no statistical evidence that suggested significant differences in blade-strike injuries between the two turbines and the hypothesis that direct fish survival rate through the advanced hydropower turbine is equal or better than that through the conventional turbine could not be rejected.

Deng, Zhiqun; Carlson, Thomas J.; Dauble, Dennis D.; Ploskey, Gene R.

2011-01-04T23:59:59.000Z

267

Evaluation of active flow control applied to wind turbine blade section  

Science Journals Connector (OSTI)

A feasibility study for implementing active flow control (AFC) methods to improve the performance of wind turbines was performed. The experimental effort investigated the impact of zero-mass-flux (ZMF) piezofluidic actuators attempting to controlboundary layer separation from thick airfoils that are suitable for wind turbine rotor blades. It was demonstrated that the ZMF actuators can replace passive vortexgenerators that are commonly used for boundary layer separation delay without the inherent drag penalty that the passive devices impose. It has been shown that ZMF fluidic actuators are suitable for flow control in wind turbine application due to the fact that they are adjustable for wider Reynolds number range while vortexgenerators are tuned to perform well in one design point. It was demonstrated that AFC can effectively double the maximum lift of this airfoil at low Reynolds numbers. A possible application is a significant reduction of the turbine start-up velocity. It was also found that even for a contaminated blade AFC is capable to delay the stall and decrease the drag using low energy expenditure therefore restoring and even surpassing the clean airfoil performance. The effectiveness of the AFC method was examined using a newly defined aerodynamic figure of merit. Various scaling options for collapsing the effect of the excitation magnitude on the lift alternation due to the activation of zero-mass-flux periodic excitation for boundary layer separation control are proposed and examined using experimental data.

O. Stalnov; A. Kribus; A. Seifert

2010-01-01T23:59:59.000Z

268

Rapid Extraction of Dust Impact Tracks from Silica Aerogel by Ultrasonic Micro-blades  

SciTech Connect

In January 2006, NASA's Stardust Mission will return with its valuable cargo of cometary dust particles, the first brought back to Earth, captured at hypervelocity speeds in silica aerogel collectors. Aerogel, a proven capture medium, is also a candidate for future sample return missions and low-earth orbit (LEO) deployments. Critical to the science return of Stardust and future missions using aerogel is the ability to efficiently extract impacted particles from collector tiles. Researchers will be eager to obtain Stardust samples as quickly as possible, and tools for the rapid extraction of particle impact tracks that require little construction, training, or investment would be an attractive asset. To this end, we have experimented with diamond and steel micro-blades. Applying ultrasonic frequency oscillations to these micro-blades via a piezo-driven holder produces rapid, clean cuts in the aerogel with minimal damage to the surrounding collector tile. With this approach, impact tracks in aerogel fragments with low-roughness cut surfaces have been extracted from aerogel tiles flown on NASA's Orbital Debris Collector Experiment. The smooth surfaces produced during cutting reduce imaging artifacts during analysis by SEM. Some tracks have been dissected to expose the main cavity for eventual isolation of individual impact debris particles and further analysis by techniques such as TEM and nanoSIMS.

Ishii, H; Graham, G; Kearsley, A T; Grant, P G; Snead, C J; Bradley, J P

2005-02-17T23:59:59.000Z

269

BeamDyn: A High-Fidelity Wind Turbine Blade Solver in the FAST Modular Framework: Preprint  

SciTech Connect

BeamDyn, a Legendre-spectral-finite-element implementation of geometrically exact beam theory (GEBT), was developed to meet the design challenges associated with highly flexible composite wind turbine blades. In this paper, the governing equations of GEBT are reformulated into a nonlinear state-space form to support its coupling within the modular framework of the FAST wind turbine computer-aided engineering (CAE) tool. Different time integration schemes (implicit and explicit) were implemented and examined for wind turbine analysis. Numerical examples are presented to demonstrate the capability of this new beam solver. An example analysis of a realistic wind turbine blade, the CX-100, is also presented as validation.

Wang, Q.; Sprague, M.; Jonkman, J.; Johnson, N.

2015-01-01T23:59:59.000Z

270

Summary of research and development effort on air and water cooling of gas turbine blades  

SciTech Connect

The review on air- and water-cooled gas turbines from the 1904 Lemale-Armengaud water-cooled gas turbine, the 1948 to 1952 NACA work, and the program at GE indicates that the potential of air cooling has been largely exploited in reaching temperatures of 1100/sup 0/C (approx. 2000/sup 0/F) in utility service and that further increases in turbine inlet temperature may be obtained with water cooling. The local heat flux in the first-stage turbine rotor with water cooling is very high, yielding high-temperature gradients and severe thermal stresses. Analyses and tests indicate that by employing a blade with an outer cladding of an approx. 1-mm-thick oxidation-resistant high-nickel alloy, a sublayer of a high-thermal-conductivity, high-strength, copper alloy containing closely spaced cooling passages approx. 2 mm in ID to minimize thermal gradients, and a central high-strength alloy structural spar, it appears possible to operate a water-cooled gas turbine with an inlet gas temperature of 1370/sup 0/C. The cooling-water passages must be lined with an iron-chrome-nickel alloy must be bent 90/sup 0/ to extend in a neatly spaced array through the platform at the base of the blade. The complex geometry of the blade design presents truly formidable fabrication problems. The water flow rate to each of many thousands of coolant passages must be metered and held to within rather close limits because the heat flux is so high that a local flow interruption of only a few seconds would lead to a serious failure.Heat losses to the cooling water will run approx. 10% of the heat from the fuel. By recoverying this waste heat for feedwater heating in a command cycle, these heat losses will give a degradation in the power plant output of approx. 5% relative to what might be obtained if no cooling were required. However, the associated power loss is less than half that to be expected with an elegant air cooling system.

Fraas, A.P.

1980-03-01T23:59:59.000Z

271

DISCRETE ELEMENT MODELING OF BLADESTRIKE FREQUENCY AND SURVIVAL OF FISH PASSING THROUGH HYDROKINETIC TURBINES  

SciTech Connect

Evaluating the consequences from blade-strike of fish on marine hydrokinetic (MHK) turbine blades is essential for incorporating environmental objectives into the integral optimization of machine performance. For instance, experience with conventional hydroelectric turbines has shown that innovative shaping of the blade and other machine components can lead to improved designs that generate more power without increased impacts to fish and other aquatic life. In this work, we used unsteady computational fluid dynamics (CFD) simulations of turbine flow and discrete element modeling (DEM) of particle motion to estimate the frequency and severity of collisions between a horizontal axis MHK tidal energy device and drifting aquatic organisms or debris. Two metrics are determined with the method: the strike frequency and survival rate estimate. To illustrate the procedure step-by-step, an exemplary case of a simple runner model was run and compared against a probabilistic model widely used for strike frequency evaluation. The results for the exemplary case showed a strong correlation between the two approaches. In the application case of the MHK turbine flow, turbulent flow was modeled using detached eddy simulation (DES) in conjunction with a full moving rotor at full scale. The CFD simulated power and thrust were satisfactorily comparable to experimental results conducted in a water tunnel on a reduced scaled (1:8.7) version of the turbine design. A cloud of DEM particles was injected into the domain to simulate fish or debris that were entrained into the turbine flow. The strike frequency was the ratio of the count of colliding particles to the crossing sample size. The fish length and approaching velocity were test conditions in the simulations of the MHK turbine. Comparisons showed that DEM-based frequencies tend to be greater than previous results from Lagrangian particles and probabilistic models, mostly because the DEM scheme accounts for both the geometric aspects of the passage event ---which the probabilistic method does--- as well as the fluid-particle interactions ---which the Lagrangian particle method does. The DEM-based survival rates were comparable to laboratory results for small fish but not for mid-size fish because of the considerably different turbine diameters. The modeling framework can be used for applications that aim at evaluating the biological performance of MHK turbine units during the design phase and to provide information to regulatory agencies needed for the environmental permitting process.

Romero Gomez, Pedro DJ; Richmond, Marshall C.

2014-04-17T23:59:59.000Z

272

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

E-Print Network (OSTI)

on the thermal conductivity of isotropic materials that protect the leading edge of the blade from erosion. For this reason, electro-thermal de-icing is not ideal for new high erosion resistant polymer based leading edge protec- tion materials because they have lower thermal conductivity than isotropic materials. Due

Granada, Universidad de

273

DEVELOPMENT OF TIP CLEARANCE FLOW DOWNSTREAM OF A ROTOR BLADE WITH COOLANT INJECTION FROM A TIP TRENCH  

E-Print Network (OSTI)

dimensional picture. The small leakage flow through the tip gap has an effect on the loss and heat transfer it imperative to understand the flow field and heat transfer distribution in the blade tip region. Most studies on the secondary flow. The ultimate objective is to re- duce losses by the introduction of high momentum air

Camci, Cengiz

274

Enhanced Prediction Techniques Based on Time-Accurate Simulations for Turbine Blade Internal Cooling  

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

Performance Computational Fluid-Thermal Science & Engineering Lab Performance Computational Fluid-Thermal Science & Engineering Lab utsr.dkt.oct05 Enhanced Prediction Techniques Based on Time-Accurate Simulations for Turbine Blade Internal Cooling Danesh Tafti SCIES Project 02- 01- SR100 DOE COOPERATIVE AGREEMENT DE-FC26-02NT41431 Tom J. George, Program Manager, DOE/NETL Richard Wenglarz, Manager of Research, SCIES Project Awarded (5/1/02, 36 Month Duration) $ 331,430 Total Contract Value ($331,430 DOE) High Performance Computational Fluid-Thermal Science & Engineering Lab utsr.dkt.oct05 Gas Turbine Need * Need for higher thermal efficiencies result in higher gas temperatures * Cooling technologies critical for increased durability * Reliable prediction tools for design - reduce costs High Performance Computational Fluid-Thermal Science & Engineering Lab

275

Electron backscattering diffraction analysis of an ancient wootz steel blade from central India  

SciTech Connect

The electron backscattering diffraction technique was used to analyse the nature of carbides present in an ancient wootz steel blade. Bulky carbides, pro-eutectoid carbide along the prior austenite grain boundaries and fine spheroidized carbides were detected. Electron backscattering diffraction was employed to understand the texture of these carbides. The orientations of the cementite frequently occur in clusters, which points to a common origin of the members of the cluster. For the bands of coarse cementite, the origin is probably large coarse particles formed during the original cooling of the wootz cake. Pearlite formed earlier in the forging process has led to groups of similarly oriented fine cementite particles. The crystallographic texture of the cementite is sharp whereas that of the ferrite is weak. The sharp cementite textures point to the longevity of the coarse cementite throughout the repeated forging steps and to the influence of existing textured cementite on the nucleation of new cementite during cooling.

Barnett, M.R. [Centre for Material and Fibre Innovation, Deakin University, Geelong (Australia)], E-mail: barnettm@deakin.edu.au; Sullivan, A. [Centre for Material and Fibre Innovation, Deakin University, Geelong (Australia); Balasubramaniam, R. [Depertment of Materials and Metallurgical Engineering, Indian Institute of Technology, Kanpur, Kanpur 208 016 (India)

2009-04-15T23:59:59.000Z

276

An Innovative Technique for Evaluating the Integrity and Durability of Wind Turbine Blade Composites - Final Project Report  

SciTech Connect

To build increasingly larger, lightweight, and robust wind turbine blades for improved power output and cost efficiency, durability of the blade, largely resulting from its structural composites selection and aerodynamic shape design, is of paramount concern. The safe/reliable operation of structural components depends critically on the selection of materials that are resistant to damage and failure in the expected service environment. An effective surveillance program is also necessary to monitor the degradation of the materials in the course of service. Composite materials having high specific strength/stiffness are desirable for the construction of wind turbines. However, most high-strength materials tend to exhibit low fracture toughness. That is why the fracture toughness of the composite materials under consideration for the manufacture of the next generation of wind turbines deserves special attention. In order to achieve the above we have proposed to develop an innovative technology, based on spiral notch torsion test (SNTT) methodology, to effectively investigate the material performance of turbine blade composites. SNTT approach was successfully demonstrated and extended to both epoxy and glass fiber composite materials for wind turbine blades during the performance period. In addition to typical Mode I failure mechanism, the mixed-mode failure mechanism induced by the wind turbine service environments and/or the material mismatch of the composite materials was also effectively investigated using SNTT approach. The SNTT results indicate that the proposed protocol not only provides significant advance in understanding the composite failure mechanism, but also can be readily utilized to assist the development of new turbine blade composites.

Wang, Jy-An John [ORNL; Ren, Fei [ORNL; Tan, Ting [ORNL; Mandell, John [Montana State University; Agastra, Pancasatya [Montana State University

2011-11-01T23:59:59.000Z

277

Method for estimation of the average local working temperatures and the residual resource of metal coatings of gas-turbine blades  

Science Journals Connector (OSTI)

A new method is proposed for estimation of the average local operating temperatures and the residual service life (resource) of protective MCrAlY metal coatings of gas-turbine blades after a certain time of opera...

P. G. Krukovskii; K. A. Tadlya

2007-05-01T23:59:59.000Z

278

SAFT imaging of flaws in the rail base blade with consideration of multiple reflections of an ultrasonic pulse from the boundaries of a test object  

Science Journals Connector (OSTI)

The possibility of obtaining images of type-69 flaws in blades of the railroad rail base is considered. For this purpose, a modification of the SAFT algorithm is proposed, in which, during...

E. G. Bazulin

2010-02-01T23:59:59.000Z

279

WindPACT Turbine Design Scaling Studies Technical Area 1ŒComposite Blades for 80- to 120-Meter Rotor  

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

1 * NREL/SR-500-29492 1 * NREL/SR-500-29492 Dayton A. Griffin Global Energy Concepts Kirkland, Washington WindPACT Turbine Design Scaling Studies Technical Area 1-Composite Blades for 80- to 120-Meter Rotor March 21, 2000 - March 15, 2001 National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401-3393 NREL is a U.S. Department of Energy Laboratory Operated by Midwest Research Institute * * * * Battelle * * * * Bechtel Contract No. DE-AC36-99-GO10337 April 2001 * NREL/SR-500-29492 WindPACT Turbine Design Scaling Studies Technical Area 1-Composite Blades for 80- to 120-Meter Rotor March 21, 2000 - March 15, 2001 Dayton A. Griffin Global Energy Concepts Kirkland, Washington NREL Technical Monitor: Alan Laxson Prepared under Subcontract No. YAM-0-30203-01 National Renewable Energy Laboratory

280

Advanced turbine design for coal-fueled engines. Phase 1, Erosion of turbine hot gas path blading: Final report  

SciTech Connect

The investigators conclude that: (1) Turbine erosion resistance was shown to be improved by a factor of 5 by varying the turbine design. Increasing the number of stages and increasing the mean radius reduces the peak predicted erosion rates for 2-D flows on the blade airfoil from values which are 6 times those of the vane to values of erosion which are comparable to those of the vane airfoils. (2) Turbine erosion was a strong function of airfoil shape depending on particle diameter. Different airfoil shapes for the same turbine operating condition resulted in a factor of 7 change in airfoil erosion for the smallest particles studied (5 micron). (3) Predicted erosion for the various turbines analyzed was a strong function of particle diameter and weaker function of particle density. (4) Three dimensional secondary flows were shown to cause increases in peak and average erosion on the vane and blade airfoils. Additionally, the interblade secondary flows and stationary outer case caused unique erosion patterns which were not obtainable with 2-D analyses. (5) Analysis of the results indicate that hot gas cleanup systems are necessary to achieve acceptable turbine life in direct-fired, coal-fueled systems. In addition, serious consequences arise when hot gas filter systems fail for even short time periods. For a complete failure of the filter system, a 0.030 in. thick corrosion-resistant protective coating on a turbine blade would be eroded at some locations within eight minutes.

Wagner, J.H.; Johnson, B.V.

1993-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "blade aka sinoma" 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

Exit blade geometry and part-load performance of small axial flow propeller turbines: An experimental investigation  

SciTech Connect

A detailed experimental investigation of the effects of exit blade geometry on the part-load performance of low-head, axial flow propeller turbines is presented. Even as these turbines find important applications in small-scale energy generation using micro-hydro, the relationship between the layout of blade profile, geometry and turbine performance continues to be poorly characterized. The experimental results presented here help understand the relationship between exit tip angle, discharge through the turbine, shaft power, and efficiency. The modification was implemented on two different propeller runners and it was found that the power and efficiency gains from decreasing the exit tip angle could be explained by a theoretical model presented here based on classical theory of turbomachines. In particular, the focus is on the behaviour of internal parameters like the runner loss coefficient, relative flow angle at exit, mean axial flow velocity and net tangential flow velocity. The study concluded that the effects of exit tip modification were significant. The introspective discussion on the theoretical model's limitation and test facility suggests wider and continued experimentation pertaining to the internal parameters like inlet vortex profile and exit swirl profile. It also recommends thorough validation of the model and its improvement so that it can be made capable for accurate characterization of blade geometric effects. (author)

Singh, Punit; Nestmann, Franz [Institute for Water and River Basin Management (IWG), University of Karlsruhe, Kaiser Str. 12, D 76128 Karlsruhe (Germany)

2010-09-15T23:59:59.000Z

282

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

SciTech Connect

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

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

1992-02-01T23:59:59.000Z

283

Experimental research on tidal current vertical axis turbine with variable-pitch blades  

Science Journals Connector (OSTI)

Abstract Due to the limited storage and ever-increasing dependence on fossil fuel, the world is in the phase of shifting toward renewable energy. Tidal current energy is one of the most predictable forms of renewable energy, which is harnessed by utilizing a tidal current turbine. To study the performance of the tidal current turbine relating to the ability of energy absorption and exchanging, experimental tests play an important role which can not only validate the numerical results but also provide a reference for the prototype design. In this study, a series of experiments related to vertical-axis turbines (VAT) were carried out at Harbin Engineering University and a large quantity of experimental data to study the hydrodynamic performance of turbines was presented. Based on the different techniques used to control the pitch mechanism, the experiments can be classified as the cycloid type controllable-pitch, spring-control pitch and passive variable-pitch VAT experiment. The influences of the different parameters on the hydrodynamic performance of turbines were discussed. Finally, some control strategies for the blade for different turbines were given.

Fengmei Jing; Qihu Sheng; Liang Zhang

2014-01-01T23:59:59.000Z

284

Technical progress report: Peripheral mower blade. Sixth quarter report ending 12/31/99  

SciTech Connect

Machine Tech Inc. has been assisting the author with the development of the peripheral mower blade decks. Machine Tech Inc. is still developing the batwing mower deck, which was started last fall after the completion of the mounted deck. The completion date of this program is slated for February. The wing covers and the center section of the batwing have been completed, the frame and drive-lines are now under development. Information from the nineteen-foot bat-wing deck prototype that they have been testing is now being used in the development of a more acceptable bat-wing mower. This unit will be able to maintain the same peripheral mower benefits, but will be much lighter and easier to pull requiring less fuel and damage to highway right of ways in soft areas. The mounted deck has been completed and is in the pilot stage with reports yet to be compiled. Machine Tech Inc. has also worked in an agricultural deck which is closely related to the mounted peripheral mower deck developed for the highway right of way. This will be one more outlet for the peripheral mower machines into the hands of the public.

Darden, John A.

2000-01-01T23:59:59.000Z

285

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

286

Microsoft Word - 41344_Texas A&M_Mech of Single Crystal Blades_Factsheet_Rev01_10-03.doc  

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

Investigation into the Mechanics of Single Crystal Turbine Blades Investigation into the Mechanics of Single Crystal Turbine Blades with a View Toward Enhancing Turbine Efficiency October 8, 2003 DE-FC26-01NT41344 1 FACT SHEET I. PROJECT PARTICIPANTS PI: K.R.Rajagopal, Texas A & M University Co-PI: I.J.Rao, New Jersey Institute of Technology II. PROJECT DESCRIPTION A. Objective(s) To model the behavior of single crystal turbine blades within a full thermodynamic framework, accounting for the evolving anisotropy of the material as it deforms and the creep behavior at different temperatures. B. Background/Relevancy The preferred solution to the generation of electric power is by means of gas turbines as they are cheaper and produce considerably less carbon monoxide than conventional methods of power

287

A wind turbine blade is ready to be lifted into place at the Windy Point Wind Farm in the Columbia River Gorge. Photo: C. Bruce Forster  

E-Print Network (OSTI)

A wind turbine blade is ready to be lifted into place at the Windy Point Wind Farm in the Columbia and wildlife recovery. At a conceptual level, the Act aimed for a power system that would meet energy demands pressure off Columbia River fish and wildlife. For the power system, moving ahead would require modified

288

Three-dimensional Numerical Analysis on Blade Response of Vertical Axis Tidal Current Turbine Under Operational Condition  

SciTech Connect

Tidal power as a large-scale renewable source of energy has been receiving significant attention recently because of its advantages over the wind and other renewal energy sources. The technology used to harvest energy from tidal current is called a tidal current turbine. Though some of the principles of wind turbine design are applicable to tidal current turbines, the design of latter ones need additional considerations like cavitation damage, corrosion etc. for the long-term reliability of such turbines. Depending up on the orientation of axis, tidal current turbines can be classified as vertical axis turbines or horizontal axis turbines. Existing studies on the vertical axis tidal current turbine focus more on the hydrodynamic aspects of the turbine rather than the structural aspects. This paper summarizes our recent efforts to study the integrated hydrodynamic and structural aspects of the vertical axis tidal current turbines. After reviewing existing methods in modeling tidal current turbines, we developed a hybrid approach that combines discrete vortex method -finite element method that can simulate the integrated hydrodynamic and structural response of a vertical axis turbine. This hybrid method was initially employed to analyze a typical three-blade vertical axis turbine. The power coefficient was used to evaluate the hydrodynamic performance, and critical deflection was considered to evaluate the structural reliability. A sensitivity analysis was also conducted with various turbine height-to-radius ratios. The results indicate that both the power output and failure probability increase with the turbine height, suggesting a necessity for optimal design. An attempt to optimize a 3-blade vertical axis turbine design with hybrid method yielded a ratio of turbine height to radius (H/R) about 3.0 for reliable maximum power output.

Li, Ye; Karri, Naveen K.; Wang, Qi

2014-04-30T23:59:59.000Z

289

Regularities of the influence of the aerodynamic coupling of blades on the formation of the spectrum of natural vibrations of the rims of turbine wheels of gas-turbine engines  

Science Journals Connector (OSTI)

We present the results of analytic and numerical investigations aimed at the evaluation of the influence of the aerodynamic coupling of blades on the formation of the spectrum of natural vibrations of the rims...

A. P. Zinkovskii; A. V. Poberezhnikov; V. A. Tsimbalyuk

2010-10-01T23:59:59.000Z

290

RAPID/Roadmap/12-AK-a | Open Energy Information  

Open Energy Info (EERE)

Click to View Fullscreen Permit Overview Contact Information Alaska Department of Fish and Game Do I Need This Permit? If your project activity meets any of the sets of...

291

RAPID/Roadmap/18-AK-a | Open Energy Information  

Open Energy Info (EERE)

&& Underground Storage Facility Regulations Alaska Stat. 46.03.380 - Registration of Tanks and Tank Systems Alaska Stat. 46.03.385 - Registration Fee for Tanks and Tank...

292

Log-Linear Models a.k.a. Logistic Regression,  

E-Print Network (OSTI)

(statistics) 2 #12;2 Probability is Useful We love probability distributions! summary of half of the course (statistics) 2 #12;2 Probability is Useful We love probability distributions! We've learned how to define & use p(...) functions. summary of half of the course (statistics) 2 #12;2 Probability is Useful We

Smith, David A.

293

RAPID/Roadmap/3-AK-a | Open Energy Information  

Open Energy Info (EERE)

The DO&G may, in its discretion, designate areas for disposal by competitive lease and conduct a disposal without a call for applications if all available geologic information...

294

RAPID/Roadmap/15-AK-a | Open Energy Information  

Open Energy Info (EERE)

Air Act requires the ADEC to adopt federally approved control strategies to minimize air pollution. See EPA's The Plain English Guide to the Clean Air Act for more...

295

RAPID/Roadmap/4-AK-a | Open Energy Information  

Open Energy Info (EERE)

(including both geophysical or seismic and shallow hole testing). The Alaska Division of Oil and Gas regulates the drilling and exploratory activities within the state and a...

296

WindPACT Turbine Design Scaling Studies Technical Area 2: Turbine, Rotor, and Blade Logistics; March 27, 2000 to December 31, 2000  

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

1 * NREL/SR-500-29439 1 * NREL/SR-500-29439 Kevin Smith Global Energy Concepts LLC Kirkland, Washington WindPACT Turbine Design Scaling Studies Technical Area 2: Turbine, Rotor, and Blade Logistics March 27, 2000 to December 31, 2000 National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401-3393 NREL is a U.S. Department of Energy Laboratory Operated by Midwest Research Institute * * * * Battelle * * * * Bechtel Contract No. DE-AC36-99-GO10337 June 2001 * NREL/SR-500-29439 WindPACT Turbine Design Scaling Studies Technical Area 2: Turbine, Rotor, and Blade Logistics March 27, 2000 to December 31, 2000 Kevin Smith Global Energy Concepts LLC Kirkland, Washington NREL Technical Monitor: Alan Laxson Prepared under Subcontract No. YAM-0-30203-01 National Renewable Energy Laboratory

297

Effects of beef enhancement with non-meat ingredients, blade tenderization, and vacuum tumbling on quality attributes of four beef cuts stored in a high oxygen environment  

E-Print Network (OSTI)

(injected or non-injected), blade tenderization (0, 1, or 2 passes) and vacuum-tumbling (0, 5, 10 or 20 minutes). Injected muscles contained up to 10% of a brine containing 1.55% potassium lactate, 0.1% sodium diacetate, 0.3% sodium tripolyphosphate..., as the concentration of potassium lactate increased from 1.5 to 2.0%, there was an increase in saltiness and bitterness in strip loin steaks (Anwar and others, 2004). Results were similar in cooked beef systems. Pagach (1992) found that cooked roasts treated...

Williams, Tracey Ann

2005-02-17T23:59:59.000Z

298

LIDAR Wind Speed Measurement Analysis and Feed-Forward Blade Pitch Control for Load Mitigation in Wind Turbines: January 2010--January 2011  

SciTech Connect

This report examines the accuracy of measurements that rely on Doppler LIDAR systems to determine their applicability to wind turbine feed-forward control systems and discusses feed-forward control system designs that use preview wind measurements. Light Detection and Ranging (LIDAR) systems are able to measure the speed of incoming wind before it interacts with a wind turbine rotor. These preview wind measurements can be used in feed-forward control systems designed to reduce turbine loads. However, the degree to which such preview-based control techniques can reduce loads by reacting to turbulence depends on how accurately the incoming wind field can be measured. The first half of this report examines the accuracy of different measurement scenarios that rely on coherent continuous-wave or pulsed Doppler LIDAR systems to determine their applicability to feed-forward control. In particular, the impacts of measurement range and angular offset from the wind direction are studied for various wind conditions. A realistic case involving a scanning LIDAR unit mounted in the spinner of a wind turbine is studied in depth with emphasis on choices for scan radius and preview distance. The effects of turbulence parameters on measurement accuracy are studied as well. Continuous-wave and pulsed LIDAR models based on typical commercially available units were used in the studies present in this report. The second half of this report discusses feed-forward control system designs that use preview wind measurements. Combined feedback/feed-forward blade pitch control is compared to industry standard feedback control when simulated in realistic turbulent above-rated winds. The feed-forward controllers are designed to reduce fatigue loads, increasing turbine lifetime and therefore reducing the cost of energy. Three feed-forward designs are studied: non-causal series expansion, Preview Control, and optimized FIR filter. The input to the feed-forward controller is a measurement of incoming wind speeds that could be provided by LIDAR. Non-causal series expansion and Preview Control methods reduce blade root loads but increase tower bending in simulation results. The optimized FIR filter reduces loads overall, keeps pitch rates low, and maintains rotor speed regulation and power capture, while using imperfect wind measurements provided by the spinning continuous-wave LIDAR model.

Dunne, F.; Simley, E.; Pao, L.Y.

2011-10-01T23:59:59.000Z

299

Aerodynamics and Heat Transfer Studies of Parameters Specific to the IGCC-Requirements: Endwall Contouring, Leading Edge and Blade Tip Ejection under Rotating Turbine Conditions  

SciTech Connect

This report deals with the specific aerodynamics and heat transfer problematic inherent to high pressure (HP) turbine sections of IGCC-gas turbines. Issues of primary relevance to a turbine stage operating in an IGCC-environment are: (1) decreasing the strength of the secondary flow vortices at the hub and tip regions to reduce (a), the secondary flow losses and (b), the potential for end wall deposition, erosion and corrosion due to secondary flow driven migration of gas flow particles to the hub and tip regions, (2) providing a robust film cooling technology at the hub and that sustains high cooling effectiveness less sensitive to deposition, (3) investigating the impact of blade tip geometry on film cooling effectiveness. The document includes numerical and experimental investigations of above issues. The experimental investigations were performed in the three-stage multi-purpose turbine research facility at the Turbomachinery Performance and Flow Research Laboratory (TPFL), Texas A&M University. For the numerical investigations a commercial Navier-Stokes solver was utilized.

Schobeiri, Meinhard; Han, Je-Chin

2014-09-30T23:59:59.000Z

300

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

SciTech Connect

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

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

2013-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "blade aka sinoma" 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

E-Print Network 3.0 - aka grahz rahbitz Sample Search Results  

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

and Astronomy, Rutgers University Collection: Physics 24 Theory: Effects of strength and sex on anger and aggression Summary: aggression. 3. There is a female bias in indirect...

302

Destruction of XM-46 (aka LGP-1846) using the Molten Salt Destruction Process  

SciTech Connect

The experimental work done on the destruction of the liquid gun propellant XM-46 (or LGP-1846) using the Molten Salt Destruction (MSD) Process at the Lawrence Livermore National Laboratory (LLNL) for the US Army is described in this report. The current methods of disposal of large quantities of high explosives (HE), propellants and wastes containing energetic materials by open burning or open detonation (OB/OD), or by incineration, are becoming undesirable. LLNL is developing MSD as an alternative to OB/OD and incineration of energetic materials. A series of 18 continuous experimental runs were made wherein a solution of XM-46 and water was injected into a bed of molten salt comprising the carbonates of sodium, potassium and lithium, along with air. The results from these experiments, described in detail in the main body of this report, show that: XM-46 can be safely and completely destroyed in a bed of molten salt at temperatures well below those needed for incineration. Under optimum operating conditions, less than 1% of the chemically bound nitrogen in the XM-46 is converted to NO{sub x}, and less than 1% carbon is converted to CO. There exist, however, a number of technical uncertainties: We need to understand better why nitrates build up in the salt bath, and what we can do to reduce this amount. We need to understand the mechanism of XM-46 oxidation and ways to minimize the formation of CO and NO{sub x}. In addition, we would like to find out ways by which a more concentrated solution of XM-46 can be introduced into the reactor, so as to increase the throughputs.

Upadhye, R.S.; Watkins, B.E.

1994-03-01T23:59:59.000Z

303

Magnetized Target Fusion (MTF) (a.k.a. Magneto-Inertial Fusion)  

E-Print Network (OSTI)

.g., Atlas $50M). The low cost and size of experimental facilities should significantly reduce fusion TEMPERATURE (eV) IONDENSITY(/cm)3 1016 1014 1018 1020 1022 1024 1026 103 104 105 Facility Cost($) = 1 TEMPERATURE (eV) 104 105 Facility Cost($) B=5 MG Operation at an intermediate density leads to reduced

304

Web data stores (aka NoSQL databases): a data model and data management perspective  

Science Journals Connector (OSTI)

During the past decade, several Web companies have developed what I would call 'Web data stores' to support the performance, scalability and availability requirements of their interactive Web services. Google's Bigtable and Amazon's Dynamo in particular have energised a community of developers to develop similar systems as open source. These systems have come to be known as 'NoSQL database' systems. In this paper, I will examine these systems from the data model and data management perspective which has not been given enough attention. This is to shed further light on understanding the nature of these systems and their future directions.

Won Kim

2014-01-01T23:59:59.000Z

305

The International Criminal Tribunal for Rwanda Information Heritage Project (aka Voices of the Rwanda Tribunal): Integrity  

E-Print Network (OSTI)

approximately 1.5 hours; (2) interviewees include judges, prosecutors, defense counsel, interpreters, court additional information and tools to facilitate the correct interpretation and authenticity verification the integrity of the original corpus and vetted extensions can be verified. Our general strategy for achieving

Matsuoka, Yoky

306

Geoecology PhD Seminar WS 2012/13 (a.k.a. Geokologisches Kolloquium)  

E-Print Network (OSTI)

of Phragmites australis and Bolboschoenus maritimus in the Elbe estuary Modelling of discharge and sediment

Potsdam, Universität

307

Blade Plunging Cutter. Innovative Technology Summary Report  

SciTech Connect

The Los Alamos LSDDP demonstrated a Mega-Tech hydraulic cutting shear to remove legs from plutonium glove boxes. The baseline technology used at LANL for removal of glove box legs is a reciprocating saw. Legs on glove boxes are typically either 3-inch diameter pipe or unistrut. During the demonstration, the Mega-Tech hydraulic cutting shear cut eight pipe legs in 15 minutes, while the reciprocating saw took 45-60 minutes to cut through eight legs, including a rest break to alleviate worker fatigue. Despite its lower production rate, the reciprocating saw may be favored in confined spaces, because it does not require as much access room as the hydraulic shears. Based on the faster production rate of the hydraulic shear, LANL and Rocky Flats are expected to begin using the hydraulic shear as their new baseline technology to remove legs from over 1,500 plutonium glove boxes at the two sites.

None

2001-09-01T23:59:59.000Z

308

Blade Testing Trends (Presentation), NREL (National Renewable...  

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

industry support. * Field Testing o Small to megawatt-scale turbines (more than 10 MW installed) o Demonstrates advances in control systems and innovative technologies. *...

309

Advanced Blade Manufacturing | Department of Energy  

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

will continue to increase in size as the demand for renewable energy grows and as wind turbines are deployed offshore. Because of their size and aerodynamic complexity, wind...

310

Availability analysis of blade server systems  

Science Journals Connector (OSTI)

The successful development and marketing of commercial high-availability systems requires the ability to evaluate the availability of systems. Specifically, one should be able to demonstrate that projected customer requirements are met, to identify availability ...

W. E. Smith; K. S. Trivedi; L. A. Tomek; J. Ackaret

2008-10-01T23:59:59.000Z

311

Impact of Aerodynamics on Blade Design  

Science Journals Connector (OSTI)

When XFoil [16] became popular in the late nineties at the Aeronautical Research Association in Sweden (FFA, [1719]) and at the Technical University Delft in the Netherlands [20, 21...], special profiles were in...

A. P. Schaffarczyk

2014-01-01T23:59:59.000Z

312

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...

313

Sandia National Laboratories: Blade Materials and Substructures...  

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

Engine Test Facility Central Receiver Test Facility Power Towers for Utilities Solar Furnace Dish Test Facility Optics Lab Parabolic Dishes Work For Others (WFO) User...

314

Sandia National Laboratories: Blade Reliability Collaborative  

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

Engine Test Facility Central Receiver Test Facility Power Towers for Utilities Solar Furnace Dish Test Facility Optics Lab Parabolic Dishes Work For Others (WFO) User...

315

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...

316

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...

317

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....

318

The effect of adding axial freedom to the blades of a two bladed helicopter rotor  

E-Print Network (OSTI)

n f O C4 31 O CV 2 Jl C Id c3 O Qk z QJ w 2 CL ~ Z 0 O J z 0 lal I- o o X 0 ('&3g), 315NQ 596/ I 32 t 1 I Il A INj &~a tlB5 ~ ?)gal~ 4 Qw44g 98~gAgA II IC / j l 0 3- l f WWMc C cC y-I c-I A ~t ~+~t...'19N Q 99Qg Cl AJ CL Id w & cd 0 IU A UI LU 0 35 Fit. IS TIP BEFLECT)ON Y5 DRAG AOGLE (+I) Posivio~ ~=. r 0 t G ill 4. 4J A-2 4 Za~e hr O- l I PL4TE UNLOGKE b PLATE LOGKEb CoHWO PL A@I LE ( DEGJ 270 DISCUSSIOI OP RESETS...

Oradat, Frank Robert

2012-06-07T23:59:59.000Z

319

Postdoctoral opening: image-based profiling The Carpenter laboratory (a.k.a. Imaging Platform) at the Broad Institute of Harvard and MIT has an  

E-Print Network (OSTI)

.k.a. Imaging Platform) at the Broad Institute of Harvard and MIT has an opening, including: · Predicting how new chemical compounds act in cells · Identifying

Carpenter, Anne E.

320

Producing bulk residual stresses in gas turbine blades  

Science Journals Connector (OSTI)

Inhomogeneous plastic strain has been used to produce a pattern of bulk compressive stresses that counteract macrodefect formation and growth in machine components, which increases the working life. Studies ha...

V. A. Boguslaev; A. P. Lopatenko; N. B. Makarenko; N. I. Obodan

1993-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "blade aka sinoma" 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

Trailing edge noise mitigation investigation for wind turbine blades  

Science Journals Connector (OSTI)

Wind turbines offer one of the most mature technologies for providing large scale renewable energy to society in an economically viable way. Although not on par with the price of conventional energy sources yet the cost of energy has been steadily decreasing as the technology continues to develop. Unfortunately like with all energy sources there are some problems with this form of generation. Among these sound emissions from wind turbines are one of the problems people who live close to the installed machines may be exposed to. Past studies show that these noise emissions are dominated by aeroacousticnoise and of the many mechanisms that lead to aeroacousticnoise the interaction between the unsteady flow and the trailing edge seems to constitute the largest portion of the overall sound spectrum. Modifications to the trailing edge geometry will change how the fluid interacts with the trailing edge and can be used to change the resulting noise emission. This study will investigate the effect passive trailing edge devices have on the overall noise emission from a wind turbine in an attempt to reduce the aeroacousticnoise being generated by the turbine.

Michael J. Asheim; Dave Munoz; Patrick Moriarty

2012-01-01T23:59:59.000Z

322

Active Aerodynamic Blade Distributed Flap Control Design Procedure  

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

Wind Energy Conference, Marseille, France, 16-19 March, 2009 I. Introduction Wind turbines are large, complex dynamically flexible structures that operate in turbulent and...

323

Experimental Investigation of Film Cooling Effectiveness on Gas Turbine Blades  

E-Print Network (OSTI)

of 1.5; a mixture of 15% SF6 and 85% Ar (by volume), from Praxair Inc. is used to obtain an effective density ratio of 2.0. The coolant flow rates are controlled by rotameters. To determine film cooling effectiveness for a given configuration, four...

Li, Shiou-Jiuan

2012-12-07T23:59:59.000Z

324

Wind Technology Testing Center Acquires New Blade Fatigue Test System  

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

The Wind Technology Testing Center (WTTC) in Boston, Massachusetts, recently acquired a significant piece of testing equipment needed to offer its industry partners a full state-of-the-art suite of...

325

Sandia National Laboratories: Rotor Blade Sensors and Instrumentation  

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

Engine Test Facility Central Receiver Test Facility Power Towers for Utilities Solar Furnace Dish Test Facility Optics Lab Parabolic Dishes Work For Others (WFO) User...

326

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...

327

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

328

A MANUAL FOR THE REMOVAL, FIXATION AND PRESERVATION OF CETACEAN EARS  

E-Print Network (OSTI)

with attached chain) Hack Saw and Blades Cutting Board or Sheet (plastic) Sawz-All and Blades Scalpel Blade

329

Comment on "A limit on the variation of the speed of light arising from quantum gravity effects" aka "Testing Einstein's special relativity with Fermi's short hard gamma-ray burst GRB090510"  

E-Print Network (OSTI)

Recently the Fermi GBM and LAT Collaborations reported their new observational data disfavoring quite a number of the quantum gravity theories, including the one suggesting the nonlinear (logarithmic) modification of a quantum wave equation. We show that the latter is still far from being ruled out: it is not only able to explain the new data but also its phenomenological implications turn out to be more vast (and more interesting) than one expected before.

Konstantin G. Zloshchastiev

2009-11-30T23:59:59.000Z

330

Public health assessment for petitioned public health assessment, West Pullman Iron and Metal (a/k/a West Pullman/Victory Heights), Chicago, Cook County, Illinois, Region 5: CERCLIS number ILD005428651. Final report  

SciTech Connect

The West Pullman/Victory Heights/Maple Park site consists of two abandoned industrial properties. The Navistar International Transportation Corporation (Navistar) property is commonly called International Harvester (IH) and the NL Industries, Incorporated property is commonly called Dutch Boy (DB). These industries were active from the early part of this century until the early 1980s when the factories were closed and abandoned. Currently, for people trespassing on the site, both the Dutch Boy and the International Harvester properties represent a potential public health hazard. Limited data are available to assess potential off-site exposures to site-related contaminants, and therefore, exposure to off-site contaminants from the International Harvester and Dutch Boy properties is classified as an indeterminate public health hazard.

NONE

1999-03-01T23:59:59.000Z

331

An X-ray study of residual macrostresses in protective coatings for gas-turbine blades  

Science Journals Connector (OSTI)

The x-ray method is used to determine residual macrostresses in the surface layer of protective coatings on high-temperature alloys. Coatings deposited by the high-energy vacuum-plasma (HEVP) method were subje...

Yu. D. Yagodkin; K. M. Pastukhov; E. V. Milyaeva

1997-11-01T23:59:59.000Z

332

BLADE-ON-PETIOLE??Dependent Signaling Controls Leaf and Floral Patterning in Arabidopsis  

Science Journals Connector (OSTI)

...organ primordia in all four whorls as these structures...BOP proteins contain four conserved ankyrin motifs...Left, X-Gal filter-lift assay. Bait proteins...Ha et al. (2004) point out that bop1-1 has...adding an additional four amino acids onto the C...

Shelley R. Hepworth; Yuelin Zhang; Sarah McKim; Xin Li; George W. Haughn

2005-04-01T23:59:59.000Z

333

High-Reynolds-number flow past many blades in extreme ground effect  

Science Journals Connector (OSTI)

......in fans, propellers, wind turbines, food mixers, hover...and Plasmadynamics and Lasers Conference (1985...helicopter flight dynamics and control: theory and experiment...Guidance, Navigation, and Control Conference (2007......

S. P. Kirby; R. Purvis

2013-05-01T23:59:59.000Z

334

Numerical simulation of flow and heat transfer of internal cooling passage in gas turbine blade  

E-Print Network (OSTI)

-to-hydraulic diameter ratio (e/Dh) is 0.078 and the rib pitch-to-height ratio (P/e) is 10. The rotation number and inlet coolant-to-wall density ratio were varied from 0.0 to 0.28 and from 0.122 to 0.40, respectively, while the Reynolds number was varied from 10...

Su, Guoguang

2007-04-25T23:59:59.000Z

335

Forced Response Analysis of Integrally Bladed Disks with Friction Ring Dampers  

E-Print Network (OSTI)

is proposed. In numerical applications, a representative compressor blisk featuring several rings the wheel of blisks. These are held in contact with the blisk due to centrifugal loads and friction

Boyer, Edmond

336

On the Removal of Aluminide Coating from Blades of Gas Turbin Engine  

Science Journals Connector (OSTI)

The peculiarities of removing ????-11 coating from ??32 type alloy in an acidic etching bath depending on the concentration and ratio between the amounts of potassium bichromate and ammonium heptamolybdate additives

N. A. Amirkhanova; R. R. Nev'yantseva; A. A. Bybin; I. P. Semenova

2003-09-01T23:59:59.000Z

337

E-Print Network 3.0 - aerodynamic blade optimisation Sample Search...  

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

Computer Technologies and Information Sciences 6 Medium-solidity Vertical Axis Wind Turbines for use in Urban Environments S. Tullis, A. Fiedler, K. McLaren, S. Ziada Summary:...

338

High performance organic photovoltaic cells with blade-coated active layers Siew-Lay Lim a  

E-Print Network (OSTI)

-weight and versatile products, such as portable battery chargers and window shades in building integrated photovoltaic

339

Geek-Up[09.17.2010] -- Water Blades, Biomass Conversion and Antineutri...  

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

Scientists at Oak Ridge National Laboratory (ORNL) and Georgia Tech used small-angle neutron scattering to probe the structural impact of this pretreatment on switchgrass....

340

Assessment of Strike of Adult Killer Whales by an OpenHydro Tidal Turbine Blade  

SciTech Connect

Report to DOE on an analysis to determine the effects of a potential impact to an endangered whale from tidal turbines proposed for deployment in Puget Sound.

Carlson, Thomas J.; Elster, Jennifer L.; Jones, Mark E.; Watson, Bruce E.; Copping, Andrea E.; Watkins, Michael L.; Jepsen, Richard A.; Metzinger, Kurt

2012-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "blade aka sinoma" 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

Study on mechanical properties of cork composites in a sandwich panel for wind turbine blade material  

E-Print Network (OSTI)

Wind energy has become one of the most promising energy sources due to its environmentally friendliness, unlimited amounts. To become competitive energy source among other sustainable and clean energy, such as solar cell, ...

Kim, Sungmin, Mech. E. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

342

SciTech Connect: Development and Validation of a New Blade Element...  

Office of Scientific and Technical Information (OSTI)

new robust solution methodologies, conform to a new modularization framework for National Renewable Energy Laboratory's FAST, utilize advanced skewed-wake analysis methods, fix...

343

Dynamic Characterization of a Free-Free Wind Turbine Blade Assembly  

Science Journals Connector (OSTI)

Accurate prediction of full-field dynamic stressstrain of rotating structures is needed (e.g. wind turbines or helicopter rotors) during operation for condition based monitoring and damage prognosis. In order...

Javad Baqersad; Christopher Niezrecki

2013-01-01T23:59:59.000Z

344

Genetic Framework for Flattened Leaf Blade Formation in Unifacial Leaves of Juncus prismatocarpus  

Science Journals Connector (OSTI)

...2004). Expression dynamics of WOX genes mark cell fate decisions during early embryonic patterning in Arabidopsis thaliana...histogenesis in Acorus calamus and its bearing on the phyllode theory of monocotyledonous leaves. Am. J. Bot. 57 : 331-361...

Takahiro Yamaguchi; Satoshi Yano; Hirokazu Tsukaya

2010-07-20T23:59:59.000Z

345

BladeCenter QS22 Type 0793 Problem Determination and Service Guide  

E-Print Network (OSTI)

Information on the Documentation CD. Fourth Edition (October 2008) © Copyright International Business Machines . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Chapter 1. Introduction . . . . . . . . . . . . . . . . . . . . . . 1 Related documentation . . . . . . . . . . . . . . . . . . . . . . 1 Notices and statements used in this document. . . . . . . . . . . . . . 2 Features

346

BladeCenter QS21 Type 0792 Problem Determination and Service Guide  

E-Print Network (OSTI)

Information on the Documentation CD. Fifth Edition (September 2008) © Copyright International Business . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Chapter 1. Introduction . . . . . . . . . . . . . . . . . . . . . . 1 Related documentation . . . . . . . . . . . . . . . . . . . . . . 1 Notices and statements used in this document. . . . . . . . . . . . . . 2 Features

347

Microsoft PowerPoint - 1-A-3-Beaudry-LOSIQUE-Brief to Blade Workshop...  

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

costs of RE technologies and accelerate l l f b f l t i it large-scale use of carbon-free electricity sources Energy Efficiency and Renewable Energy goals: Strengthen U.S. energy...

348

Enhancement of combined cycle performance using transpiration cooling of gas turbine blades with steam  

Science Journals Connector (OSTI)

Gas/steam combined cycle is synergetic combination of Brayton cycle based topping cycle and Rankine cycle based bottoming cycle, which have capability of operating independently too. Combined cycle performance de...

Sanjay Kumar; Onkar Singh

2014-06-01T23:59:59.000Z

349

E-Print Network 3.0 - advanced counterrotation blade Sample Search...  

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

Rotorcraft Technology (CERT) Collection: Engineering 6 Proceedings of FEDSM2005 2005 ASME Fluids Engineering Division Summer Meeting and Exhibition Summary: The radial clearance...

350

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

351

American Institute of Aeronautics and Astronautics Optical Probe for Monitoring Blade Tip Clearance  

E-Print Network (OSTI)

, this technology will reduce engine development cycle time and cost by enabling turbine clearances to be understood casing, has been a subject of intense research since the inception of the gas turbine engine. A prototype and the surrounding casing, has been a subject of intense research since the inception of the gas turbine engine

352

Structural Load Analysis of Floating Wind Turbines Under Blade Pitch System Faults  

Science Journals Connector (OSTI)

With the steady increase in wind power worldwide, offshore wind farms are most likely to be a ... some countries due to the high quality of offshore wind resources and their proximity to the big shore cities. To ...

Rannam Chaaban; Daniel Ginsberg; Claus-Peter Fritzen

2014-01-01T23:59:59.000Z

353

Connecticut's 5th congressional district: Energy Resources |...  

Open Energy Info (EERE)

England Energy Management Inc Pioneer Valley Photovoltaics Cooperative aka PV Squared Praxair Technipower Systems formerly Solomon Technologies Retrieved from "http:...

354

Undergraduate Research Spring Symposium & Awards  

E-Print Network (OSTI)

in Scientific Posters (aka: Eye-catching Posters) Thursday, March 17, 2011, 11am-12noon Student Center Room 319

Gaucher, Eric

355

A LEBESGUE MEASURABLE SET THAT IS NOT BOREL SAM SCHIAVONE  

E-Print Network (OSTI)

) Ternary Expansions (2) The Cantor Set (3) The Cantor Ternary Function (a.k.a. The Devil's Staircase

Sands, Jonathan W.

356

WP2 IEA Wind Task 26:The Past and Future Cost of Wind Energy  

E-Print Network (OSTI)

Innovation Pathway LM Glasfiber Blades WindPACT BaselineBlade Data Mass (kg) LM Glasfiber Blades Rotor Radius (m)Innovation Pathway LM Glasfiber Blades TPI Innovative Blade

Lantz, Eric

2014-01-01T23:59:59.000Z

357

WP2 IEA Wind Task 26:The Past and Future Cost of Wind Energy  

E-Print Network (OSTI)

Innovation Pathway LM Glasfiber Blades WindPACT BaselineBlade Data Mass (kg) LM Glasfiber Blades Rotor Radius (m)Blade Innovation Pathway LM Glasfiber Blades TPI Innovative

Lantz, Eric

2014-01-01T23:59:59.000Z

358

Music is in our genes  

Science Journals Connector (OSTI)

... example, the music of African bushmen cultures, such as the Juhoansi (listen to Juhoansi audio clip) , fell close to that of pygmy tribes such as the Aka (listen ... , fell close to that of pygmy tribes such as the Aka (listen to Aka audio clip). Both include yodelling and a vocal trick called an interlock, in which ...

Ewen Callaway

2007-12-10T23:59:59.000Z

359

An approximate model for the performance and acoustic predictions of counterrotating propeller configurations  

E-Print Network (OSTI)

Blades; 40' Blade Tip Angle; X-microphone; P?r = 20pPa . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . 104 34 Theoretical and Experimental Noise Level Variation with Advance Ratio; 4 x 4 Blades, 45' Blade Tip Angle; X-microphone, P...

Denner, Brett William

2012-06-07T23:59:59.000Z

360

NREL: Workforce Development and Education Programs - Collegiate...  

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

Turbines Go Blade-to-Blade in Wind Tunnel Tests at WINDPOWER May 1, 2014 Ten small wind turbines will go blade-to-blade in wind tunnel tests at the inaugural U.S. Department of...

Note: This page contains sample records for the topic "blade aka sinoma" 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

The Structure of Rauvolfia serpentina Strictosidine Synthase Is a Novel Six-Bladed β-Propeller Fold in Plant Proteins  

Science Journals Connector (OSTI)

...strictosidine synthase (STR1) from the Indian medicinal plant Rauvolfia serpentina...disorders (ajmaline, from the Indian medicinal plant Rauvolfia serpentina...might also serve as a starting point for the rational construction...strictosidine synthase (STR1) from the Indian medicinal plant Rauvolfia serpentina...

Xueyan Ma; Santosh Panjikar; Juergen Koepke; Elke Loris; Joachim Stöckigt

2006-03-10T23:59:59.000Z

362

Turbulent heat transfer and friction in a segmental channel that simulates leading-edge cooling channels of modern turbine blades  

E-Print Network (OSTI)

. Steady state heat transfer experiments for three channel cross sections, ribbed curved wall-to-smooth flat wall heat flux ratio of 0.0, 1.0, 2.0, 4.0, 6.0, and infinity, and mass flow rates corresponding to Reynolds numbers between 10 000 and 70 000...

Spence, Rodney Brian

2012-06-07T23:59:59.000Z

363

Object-Oriented Modelling of a Wind Power Plant in Modelica and Analysis of Loads on Blade Bearings.  

E-Print Network (OSTI)

?? Within this thesis work a strongly simplified yet complete, component-based numerical model for load analysis of a horizontal wind turbine is built up. The (more)

Rickert, Claas

2011-01-01T23:59:59.000Z

364

Deposition of hole-transport materials in solid-state dye-sensitized solar cells by doctor-blading  

E-Print Network (OSTI)

Lausanne, 1015 Lausanne, Switzerland c Konarka Technologies Inc., 116 John Street, Lowell, MA 01852, USA efficiencies over 5% [10] and have exhibited good stability under elevated- temperature light-soaking [11

McGehee, Michael

365

Mach number correlation for a two-dimensional helicopter rotor-blade analysis in the tip region  

E-Print Network (OSTI)

. Comparison of chordwise pressure distributions between TRANDES and flight test (TAAT) results. Flight condition B, P = 90 degrees, radius = 86. 4 percent 16 17 3 c. Comparison of chordwise pressure distributions between TRANDES and flight test (TAAT.... 066 CP/SIG = 0. 008 Figure 3 c. Comparison of chordwise TRANDES and flight test 90 degrees, radius AZIMUTH = 90. 0 / RADIUS = 91. 0 MRCH NQ. (QRTRHAPI = 0. 813 CN = 0. 104 RLP(TRRNDESI = 0. 414 pressure distributions between (TAAT) results...

Schillings, John Joseph

1983-01-01T23:59:59.000Z

366

Numerical Simulation of Flow and Heat Transfer in Internal Multi-Pass Cooling Channel within Gas Turbine Blade  

E-Print Network (OSTI)

four-pass channel with two different inlet settings. The main flowing channel was rectangular channel (AR=2:1) with hydraulic diameter (Dh ) equals to 2/3 inch (16.9 mm). The first and fourth channel were set as different aspect ratio (AR=2:1; AR=1...

Chu, Hung-Chieh 1979-

2012-11-16T23:59:59.000Z

367

Operating experience of single cylinder steam turbine with 40 inch last blade applied for combined cycle plant  

SciTech Connect

Inquiries and orders for combined cycle plant have increased recently because of the better efficiency of combined cycle plant in comparison with the usual fossil fuel power plant. The typical features of the steam turbine for combined cycle plant are the lower inlet steam conditions and the more driving steam flow quantity compared with the steam turbine for usual fossil fuel plants. This paper introduces the design and results of operation about 122 MW single cylinder steam turbine. Furthermore, the results of periodical overhaul inspection carried out after one year`s commercial operation is also presented.

Kishimoto, Masaru; Yamamoto, Tetsuya [Mitsubishi Heavy Industries, Ltd., Yokohama (Japan); Yokota, Hiroshi [Mitsubishi Heavy Industries, Ltd., Nagasaki (Northern Mariana Islands); Umaya, Masahide [Mitsubishi Heavy Industries, Ltd., Takasago (Japan)

1994-12-31T23:59:59.000Z

368

Reducing conservatism in life assessment approaches: industrial steam turbine blade to disc interfaces and the shot peening process.  

E-Print Network (OSTI)

??Damage tolerant life assessment and the resulting component repair and replacement scheduling is crucial to the continued operation of UK power plant. Typically a major (more)

Soady, K.A.

2013-01-01T23:59:59.000Z

369

Introduction Due to the demand for efficiency in turbomachinery, the clearance between the casing and the blades  

E-Print Network (OSTI)

Introduction Due to the demand for efficiency in turbomachinery, the clearance between the casing of Turbomachinery Wear Simulations SURE 2011 Project by Grégoire Martin, supervised by Dr. Christophe Pierre and Dr

Barthelat, Francois

370

Gas-dynamic and thermal processes under film cooling end surfaces of a gas-turbine blade bucket  

Science Journals Connector (OSTI)

Results from an investigation of using swirled coolant jets to obtain efficient film cooling of a turbine bucket while minimizing the total losses in it are presented.

V. V. Lebedev

2010-02-01T23:59:59.000Z

371

Feed rate calculation algorithm for the homogeneous material deposition of blisk blades by 5-axis laser cladding  

Science Journals Connector (OSTI)

The application of laser cladding technology is becoming widely extended in the ... parts. These complex parts require 5-axis laser cladding deposition processes whose programming demands optimized and ... homoge...

Amaia Calleja; Ivn Tabernero

2014-10-01T23:59:59.000Z

372

Process for forming a long gas turbine engine blade having a main wall with a thin portion near a tip  

DOE Patents (OSTI)

A process is provided for forming an airfoil for a gas turbine engine involving: forming a casting of a gas turbine engine airfoil having a main wall and an interior cavity, the main wall having a wall thickness extending from an external surface of the outer wall to the interior cavity, an outer section of the main wall extending from a location between a base and a tip of the airfoil casting to the tip having a wall thickness greater than a final thickness. The process may further involve effecting movement, using a computer system, of a material removal apparatus and the casting relative to one another such that a layer of material is removed from the casting at one or more radial portions along the main wall of the casting.

Campbell, Christian X; Thomaidis, Dimitrios

2014-05-13T23:59:59.000Z

373

Numerical-experimental comparison in the simulation of rotor/stator interaction through blade-tip/abradable coating contact  

E-Print Network (OSTI)

-Cramayel, France Abstract Higher aircraft energy efficiency may be achieved by minimizing the clearance be- tween K plastic modulus T,int interaction rotational period Structural Dynamics & Vibration Laboratory 1

Paris-Sud XI, Université de

374

Using Software Development Standards to Analyse Accidents Involving Electrical, Electronic or Programmable, Electronic Systems: The Blade Mill PLC Case Study  

E-Print Network (OSTI)

investigating the immediate and underlying causes of incidents and accidents to ensure that remedial action techniques that might be used to investigate the underlying causes of E/E/PES related incidents. The following sections, therefore, introduce two techniques to support the investigation of this class

Johnson, Chris

375

Development of a low-cost bi-axial intensity-based optical fibre accelerometer for wind turbine blades  

Science Journals Connector (OSTI)

Abstract A bi-axial optical fibre accelerometer was developed for wind turbine monitoring. The sensor was fabricated from intensity-modulated optical fibre, which is low-cost, lightweight and simple in design. The bi-axial acceleration was measured by light intensity coupling between a cantilever fibre and two receiving fibres. Numerical simulation was performed to obtain the light coupling characteristics and the results were used to design the sensor parameters. A prototype was fabricated and the calibration scheme validated experimentally. The performance of the prototype was tested in terms of frequency response and linearity.

Yao Ge; Kevin S. Kuang; Ser Tong Quek

2013-01-01T23:59:59.000Z

376

396 AIAA JOURNAL, VOL. 37, NO. 3: TECHNICAL NOTES Techniques for Improved Blade Vortex Interaction Modeling," Proceedings  

E-Print Network (OSTI)

Modeling," Proceedings of the 51st Annual Forum of the American Helicopter Society (Fort Worth, TX), 1995, Dept. of Me- chanical Engineering, Duke Univ., Durham, NC, May 1990. 33Bliss, D. B., and Miller, W. O

Aggarwal, Suresh K.

377

NODULE ROOT and COCHLEATA Maintain Nodule Development and Are Legume Orthologs of Arabidopsis BLADE-ON-PETIOLE Genes  

Science Journals Connector (OSTI)

...mutation in M. truncatula does not change the identity of...The endoreduplication index calculation was defined previously (Maunoury...and Applications. In The Handbook of Plant Mutation Screening...Provart, N.J. (2007). An Electronic Fluorescent Pictograph browser...

Jean-Malo Couzigou; Vladimir Zhukov; Samuel Mondy; Ghada Abu el Heba; Viviane Cosson; T.H. Noel Ellis; Mike Ambrose; Jiangqi Wen; Million Tadege; Igor Tikhonovich; Kirankumar S. Mysore; Joanna Putterill; Julie Hofer; Alexei Y. Borisov; Pascal Ratet

2012-11-06T23:59:59.000Z

378

FIELD PERFORMANCE OF EROSION RESISTANT MATERIALS ON BOILER INDUCED...  

Office of Scientific and Technical Information (OSTI)

... 3 4 Photographs of Conforma Clad WC200 test blades ... 5 - 6 Photographs of Kinton Carbide test blades ......

379

Low Alloy Steel Susceptibility to Stress Corrosion Cracking in Hydraulic Fracturing Environment.  

E-Print Network (OSTI)

??The pipelines used for hydraulic fracturing (aka. "fracking") are often operating at a pressure above 10000psi and thus are highly susceptible to Stress Corrosion Cracking (more)

Anyanwu, Ezechukwu John

2014-01-01T23:59:59.000Z

380

FRACSTIM/I: A Fully Coupled Fluid Flow/Heat Transport and Geomechanica...  

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

FRACSTIMI: A Fully Coupled Fluid FlowHeat Transport and Geomechanical DeformationFracture Generation Simulator aka FALCON: Fracturing and Liquid CONservation Robert K....

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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

California's 7th congressional district: Energy Resources | Open...  

Open Energy Info (EERE)

Biofuels OCR Solar Roofing Inc Optimal Technologies International Inc Solar Capital Inc Solar Self Help Inc aka Light Energy Systems Retrieved from "http:en.openei.orgw...

382

California's 10th congressional district: Energy Resources |...  

Open Energy Info (EERE)

Controls Power Air Corp formerly Fortune Partners Renewable Energy Solutions, LLC Solar Self Help Inc aka Light Energy Systems Ultracell Corporation Xtreme Energetics...

383

RMOTC - News  

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

performing the auction. Sign up to receive the details as they become available. Teapot Dome highlighted Black Gold Scenic Byway October 2014 | News NPR-3, aka Teapot Dome,...

384

Engineering Part IB P8 Elective (2)  

E-Print Network (OSTI)

.1 Blade materials www.reuk.co.uk NEG Micon NM82 1.5MW turbine. 40m blades, vacuum infusion LM Glasfiber - Blade Structure and Materials Dr Michael Sutcliffe Aims of this course · To understand materials issues blades · To detail a fatigue design methodology for turbine blades Selected bibliography Guidelines

Talbot, James P.

385

Wind Turbine Design Using A Free-wake Vortex Method With Winglet Application.  

E-Print Network (OSTI)

??Wind turbine blades are traditionally designed with blade element momentum theory (BEMT). This method is incapable of accurately analyzing non-conventional or non-planar blade planforms. Modern (more)

Maniaci, David

2013-01-01T23:59:59.000Z

386

Evolution of microstructure and residual stress in disc-shape EB-PVD thermal barrier coatings and temperature profile of high pressure turbine blade.  

E-Print Network (OSTI)

??A detailed understanding of failure mechanisms in thermal barrier coatings (TBCs) can help develop reliable and durable TBCs for advanced gas turbine engines. One of (more)

Mukherjee, Sriparna

2011-01-01T23:59:59.000Z

387

Efficiency of operation of a T-250/300240 turbine without moving blades of last stages of the low-pressure cylinder  

Science Journals Connector (OSTI)

The results of detailed computations performed for actual electric and heat loads, pressure in the condenser, and other operating parameters are used to consider the changes in the efficiency of operation of a T-...

L. L. Simoyu; G. D. Barinberg; V. F. Gutorov

2006-01-01T23:59:59.000Z

388

Structure of high-temperature nickel alloy ZhS36VI for single-crystal blades of high-pressure turbines  

Science Journals Connector (OSTI)

The fine structure, phase composition, and segregation inhomogeneity of carbonless single-crystal rhenium-alloyed alloy ZhS36VI in cast and heat-treated conditions are studied. The structural and phase stabili...

V. P. Kuznetsov; V. P. Lesnikov; E. V. Moroz

2008-03-01T23:59:59.000Z

389

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

E-Print Network (OSTI)

phase locations to model the unsteady wake formed at the trailing edge of the upstream vane. Delta wings were also placed in four positions to create a vortex similar to the passage vortex at the exit of the vane. The film cooling effectiveness...

Blake, Sarah Anne

2009-05-15T23:59:59.000Z

390

Development and assessment of a coupled strategy for conjugate heat transfer with Large Eddy Simulation: Application to a cooled turbine blade  

E-Print Network (OSTI)

Development and assessment of a coupled strategy for conjugate heat transfer with Large Eddy walls is an important phenomenon in combustion chambers and a main design constraint in gas turbines- tionally expensive method, the aim of this paper is to develop and assess a suitable strategy based on LES

Nicoud, Franck

391

The pie-crusting technique using a blade knife for medial collateral ligament release is unreliable in varus total knee arthroplasty  

Science Journals Connector (OSTI)

Despite the documented clinical efficacy of the pie-crusting technique for medial collateral ligament (MCL ... (frequency of early over-release) of the pie-crusting technique for MCL release.

Dai-Soon Kwak; Yong In; Tae Kyun Kim

2014-10-01T23:59:59.000Z

392

IGUS Innovative Technische Systeme | Open Energy Information  

Open Energy Info (EERE)

The company produces systems for monitoring the condition of rotor blades in wind turbines, including diagnosing the formation of ice on the rotor blades. References: IGUS...

393

E-Print Network 3.0 - anterior interosseous syndrome Sample Search...  

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

where additional ossification of cartilage has added... DESCRIPTION IBL Maximum Iliac Blade Length The length of the iliac blade from the most anterior projection... of the...

394

SAND2013-10162  

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

in the figure), which demonstrates the weight reduction trajectory in this series of blade design studies. The industry survey includes recent large blades including the...

395

COMMUNICATIONS IN COMPUTATIONAL PHYSICS Vol. 2, No. 6, pp. 1095-1124  

E-Print Network (OSTI)

control surfaces, helicopter rotor blades, compressor and turbine blades, stage separation in launch vehicles, and the combustion interface in solid propellant rocket motors. Numerical solution

Groth, Clinton P. T.

396

Education Toolbox Search | Department of Energy  

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

Renewables Education Toolbox Search Education Toolbox Search Enter terms Search Retain current filters Showing 1 - 1 of 1 result. Download Wind Turbine Blade Design Blade...

397

Droplet Characterization in the Wake of Steam Turbine Cascades.  

E-Print Network (OSTI)

?? In low-pressure steam turbines, water droplet formation on the surfaces of stationary stator blades can lead to erosion on downstream turbine blades and other (more)

Plondke, Adam Charles

2012-01-01T23:59:59.000Z

398

Education Toolbox Search | Department of Energy  

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

Enter terms Search Retain current filters Showing 1 - 1 of 1 result. Download Wind Turbine Blade Design Blade engineering and design is one of the most complicated and...

399

GENERAL THEORY OF COUPLED THERMALLY STABLE ANISOTROPIC LAMINATES  

E-Print Network (OSTI)

of rotor blades of helicopters or of wind-mills. Usually, structural composite laminates are obtained

Paris-Sud XI, Université de

400

Int J Adv Manuf Technol (1997) 13:523-529 I997 Springer-Verlag London Limited  

E-Print Network (OSTI)

to machine compli- cated sculptured surfaces such as turbine blades, impellers, and marine propellers, which

Kim, Jongwon

Note: This page contains sample records for the topic "blade aka sinoma" 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

Proceedings of the 2000 IEEE InternationalConference on Robotics& Automation  

E-Print Network (OSTI)

, are widely used in scientific and engineering applica- tions. Propeller and turbine blades, or ships, auto

402

Computer Aided Geometric Design 6 (1989) 87-96 North-Holland  

E-Print Network (OSTI)

in ship hulls, turbine blades, propellers, aeropume fuselages, etc. are defined in three orthographic

Waterloo, University of

403

June 2004 The Arabian Journal for Science and Engineering, Volume 29, Number 1C. 39 . (ANSYS)  

E-Print Network (OSTI)

that the main rotor torsional vibration can give the blades vibration signature. An experimental study to the basic understanding of the interaction of blades­rotor systems. Vibration measurement has been known) . . . . . SHAFT LATERAL AND TORSIONAL VIBRATION RESPONSES TO BLADE(S) RANDOM VIBRATION EXCITATION B.O. Al

Ghouti, Lahouari

404

J. Phys. III France 5 (1995) 1587-1597 OCTOBER1995, PAGE1587 Classification  

E-Print Network (OSTI)

= Stiffness I = Mesh point on a blade m = Mass distribution N = Number of blades P = Unsteady aerodynamic.30M Direct Use of Unsteady Aerodynamic Pressures in the Flutter Analysis of Mistuned Blades A of a cascade of engine blades coupled only through aerodynamics is developed. The unique feature

Boyer, Edmond

405

Autonomous Autorotation of an RC Helicopter Pieter Abbeel1  

E-Print Network (OSTI)

, during autorotation the rotor drag is overcome by the airflow through the blades. Effectively the ground with too low a main rotor speed then the main rotor blades will flex sharply downward. This can result in one of the rotor blades striking the tailboom, destroying both that rotor blade

Bejerano, Gill

406

AIAA-982909 Characterization of the Near Wake of a Helicopter Rotor*  

E-Print Network (OSTI)

of Technology. Abstract Vortex characteristics in the near wake of a 2-bladed teetering rotor in steady forward to be repeatable to within 1° of rotor revolution. Velocity was measured in the planes intersected by the rotor-blade blade side of the rotor. The axial velocity in all cases is wake-like, being directed towards the blade

407

Decoupling Interaction Hardware Design Using Libraries of Reusable Electronics  

E-Print Network (OSTI)

of the Figure 1. Close up of Blades: The figure shows from left, Switch-LED, Haptic Rotor, USB-Gateway, RFID called Blades and Tiles. Interaction hardware design with blades and tiles provides researchers reusability, reliability, scalability, and flexibility. We have created a library of blades and tiles

Ullmer, Brygg

408

Camron C. Land Department of Mechanical Engineering,  

E-Print Network (OSTI)

typically ranged between those used for combustor liner cooling and for blade outer air seal cooling whereby liner, turbine vanes, turbine blades, and turbine blade outer air seals. Common cooling geom- etries in several locations including a combustor liner, turbine blade outer air seal, and inside airfoils. Similar

Thole, Karen A.

409

CHARACTERIZATION OF INTERLAMINAR FRACTURE IN COMPOSITE A CASE STUDY APPROACH  

E-Print Network (OSTI)

.................................................................................................... 3 Case I Carbon Fiber Aerofan Blades ............................................................................ 5 Case II Honeycomb Sandwich Fuel Tanks

410

Materials Science and Engineering A319321 (2001) 597601 Foreign-object damage and high-cycle fatigue of Ti6Al4V  

E-Print Network (OSTI)

-cycle fatigue (HCF)- related titanium alloy fan and compressor blade failures in military gas-turbine engines-critical components, such as titanium alloy turbine blades. As foreign-object damage (FOD) from ingested debris such as stones, which impact primarily on the fan blades, can result in immediate blade fracture or dam- age from

Ritchie, Robert

411

Microsoft Word - Managing Your iSupplier Profile Job Aid R12 05092012.docx  

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

of Contents of Contents Summary of Your iSupplier Profile...........................................................................................................................2 Accessing Your Account for the First Time.............................................................................................................2 Navigating to Your Profile.........................................................................................................................................3 Company Information (a.k.a. Profile Management)............................................................................................4 Organization...............................................................................................................................................................5

412

E-Print Network 3.0 - actor critic algorithm Sample Search Results  

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

ON CONTROL SYSTEMS TECHNOLOGY, VOL. 12, NO. 2, MARCH 2004 Actor... .k.a. actors) and the control-flow-centric scheduling and activation mechanisms (a.k.a. frameworks Source:...

413

Rank-1 accelerated illumination recovery in scanning diffractive imaging by transparency estimation.  

SciTech Connect

Illumination retrieval in scanning diffractive imaging a.k.a. ptychography is challenging when the specimen is weakly scattering or surrounded by empty space. We describe a rank-1 acceleration method for weakly scattering or piecewise smooth specimens.

Wu, Hau-Tieng

2014-08-07T23:59:59.000Z

414

Network design : a theory of scale for ubiquitous computing  

E-Print Network (OSTI)

Ubiquitous computing (aka "ubicomp") describes the process of embedding computation into everyday things. From smart toasters and smart shoes to smart toys and smart buildings, ubicomp describes user experiences which are ...

Lipshin, Jason Martin

2014-01-01T23:59:59.000Z

415

E-Print Network 3.0 - anaerobic glycolysis due Sample Search...  

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

Occurs in a series of reactions: 1. Glycolysis 2. Citric acid cycle (aka TCA or Kreb... ATP Carbohydrate Catabolism Figure 24.5 12;9132011 2 Glycolysis 5-5 Glycolysis In ......

416

Time Domain Terahertz Non Destructive Evaluation of Water Intrusion in Composites and Corrosion under Insulation  

Science Journals Connector (OSTI)

Time domain terahertz (a.k.a. T-Ray or THz) imaging is used to detect water intrusion and delamination in composite structures used in radomes. Corrosion is detected on pipes beneath...

White, Jeffrey S; Zimdars, David A

417

Structural Dynamics Experimental Activities in Ultra-Lightweight and Inflatable Space Structures  

Science Journals Connector (OSTI)

This paper reports recently completed structural dynamics experimental activities with new ultra-lightweight and inflatable space structures (a.k.a., "Gossamer" spacecraft) at NASA Langley Research Center, NASA Marshall Space Flight Center, and NASA ...

Pappa Richard S.; Lassiter John O.; Ross Brain P.

2001-05-01T23:59:59.000Z

418

Argonne OutLoud: Science and Cinema | Argonne National Laboratory  

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

Science and Cinema Argonne OutLoud: Science and Cinema 1 of 9 Argonne OutLoud: Science and Cinema Dr. Marius Stan (aka Bogdan Wolynetz from the television series Breaking Bad) is a...

419

Beware of Invasive Cane Toads: Huge Toad is a Dog and Koi Killer Doug Caldwell, Ph.D. U.F. Commercial Landscape Horticulture Extension, Collier County  

E-Print Network (OSTI)

inches is NOT native and is almost certainly an invasive Cane Toad. Wear gloves to protect yourself (AKA, marine toad) or Rhinella marina, previously Bufo marinus, are the The Southern Toad stays under 4

Florida, University of

420

Aurora final report  

SciTech Connect

Final Technical report detailing the work done by Nuvera and its partners to fulfill the goals of the program "Transport Studies Enabling Efficiency Optimization of Cost-Competitive Fuel Cell Stacks" (a.k.a. AURORA)

Robert, Dross; Amedeo, Conti

2013-12-06T23:59:59.000Z

Note: This page contains sample records for the topic "blade aka sinoma" 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

Regulations and Procedures Manual  

E-Print Network (OSTI)

Employees in Testing-Designated Positions (TDPs) Employeesare designated as a testing-designated position (TDP) areEmployees in Non-Testing-Designated Positions (TDPs) (a.k.a.

Young, Lydia J.

2014-01-01T23:59:59.000Z

422

Simulation of Static Flying Attitudes with Different Heat Transfer Models for a Flying-Height Control Slider with Thermal Protrusion  

Science Journals Connector (OSTI)

The thermal flying height control (TFC), aka dynamic fly height (DFH), technique has been recently used in the head disk interface of hard disk drives to obtain a lower head-media ... effects are included in the ...

Du Chen; David B. Bogy

2010-10-01T23:59:59.000Z

423

Multi-Proxy Approach on Black Carbon Characterization and Combustion Products Source Discrimination in Environmental Media  

E-Print Network (OSTI)

Environmental applications of pyrogenic carbon, aka black carbon (BC), have been hampered due to the poor characterization and quantification of environmental BC. This dissertation was dedicated to the better characterization of environmental char...

Kuo, Li-Jung

2011-02-22T23:59:59.000Z

424

Size selective absorption of DNA tetrahedra in ATO nanomaterials  

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

of that complex is bio-inspired by the natural water oxidation complex (a.k.a. oxygen evolving complex) in Photosystem II. The natural water splitting enzyme uses cluster of...

425

Page 1 of 29 COMPANIES, INSTITUTIONS, AND AGENCIES  

E-Print Network (OSTI)

Owings Mills MD AKA Capital Adventures Buffalo NY Al Adwani General Hospital Taif Saudi Arabia Alabama Amerrock Products Nolanville TX AMFS Springfield VA Amgen Camarillo CA AMHCC, Inc. Adrian MN AMR Loma Linda

Blanchette, Robert A.

426

Controllable adhesion using field-activated fluids  

E-Print Network (OSTI)

We demonstrate that field-responsive magnetorheological fluids can be used for variable-strength controllable adhesion. The adhesive performance is measured experimentally in tensile tests (a.k.a. probe-tack experiments) ...

Ewoldt, Randy H.

427

FRAC-STIM: A Physics-Based Fracture Simulation, /reservoir Flow...  

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

FRAC-STIM: A Physics-Based Fracture Simulation, reservoir Flow and Heat Transport Simulator(aka FALCON) FRAC-STIM: A Physics-Based Fracture Simulation, reservoir Flow and Heat...

428

Autonomous Plasmid-like Replication of a Conjugative Transposon  

E-Print Network (OSTI)

Integrative and conjugative elements (ICEs), a.k.a. conjugative transposons, are mobile genetic elements involved in many biological processes, including pathogenesis, symbiosis and the spread of antibiotic resistance. ...

Grossman, Alan D.

429

Bonneville Power Administration  

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

VK-22 a.k.a. tract V-K-2-A-22 along the Vancouver-Kelso transmission line operated as Ross-Lexington No. 1; including any amendments to same." Response: BPA has provided all...

430

CHRISTINE JENNINGS, ELLEN FEDDER, LANCE JONES, ERNEST  

E-Print Network (OSTI)

, Electronic Frontier Foundation, San Francisco, California; Rebecca Harrison Steele & Zeina N. Salam, A.CCHRISTINE JENNINGS, ELLEN FEDDER, LANCE JONES, ERNEST LASCHE A/K/A/ MIKE LASCHE, BARBARA KLEIN

Shamos, Michael I.

431

Experimental Investigation of the Effects of Fuel Aging on Combustion Performance and Emissions of Biomass Fast Pyrolysis Liquid-Ethanol Blends in a Swirl Burner.  

E-Print Network (OSTI)

??Biomass fast pyrolysis liquid is a renewable fuel for stationary heat and power generation; however degradation of bio-oil by time, a.k.a. aging, has an impact (more)

Zarghami-Tehran, Milad

2012-01-01T23:59:59.000Z

432

Fermilab | Science | Inquiring Minds | Questions About Physics  

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

a system with negative pressure. The reason for this is simple: The second law of thermodynamics tells us that all thermodynamic states of a system (aka your fluid with negative...

433

Geographic dispersion in teams : its history, experience, measurement, and change  

E-Print Network (OSTI)

This thesis begins with the simple argument that geographic dispersion has gone surprisingly unexamined despite its role as the domain-defining construct for geographically dispersed teams (a.k.a. "virtual teams"). The ...

O'Leary, Michael Boyer, 1969-

2002-01-01T23:59:59.000Z

434

Fossil identification activity Standard: Comparing fossils to each other or to living organisms reveals features of  

E-Print Network (OSTI)

. Icaronycteris XI6a, aka" bat" 4. Boney Fish (Knightera) XI2c, (1 piece) 5. Megalodon tooth XIa 6. Dinosaur skin? (teeth? skin? bone? imprint?) 3. What kind of animal is it? (reptile? mammal? invertebrate? fish?) 4. Why

435

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

436

Turbine seal assembly  

DOE Patents (OSTI)

A seal assembly that limits gas leakage from a hot gas path to one or more disc cavities in a turbine engine. The seal assembly includes a seal apparatus that limits gas leakage from the hot gas path to a respective one of the disc cavities. The seal apparatus comprises a plurality of blade members rotatable with a blade structure. The blade members are associated with the blade structure and extend toward adjacent stationary components. Each blade member includes a leading edge and a trailing edge, the leading edge of each blade member being located circumferentially in front of the blade member's corresponding trailing edge in a direction of rotation of the turbine rotor. The blade members are arranged such that a space having a component in a circumferential direction is defined between adjacent circumferentially spaced blade members.

Little, David A.

2013-04-16T23:59:59.000Z

437

Education Toolbox Search | Department of Energy  

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

involving wind speed, direction and blade design are altered. Students are directed to work in teams to design, test and analyze components of a wind turbine such as blade length,...

438

(c)2001 AmericanInstituteof Aeronautics & Astronauticsor Published with Permission of Author(s) and/orAuthor(s)1 Sponsoring Organization.  

E-Print Network (OSTI)

, unsteady wake flows, and time dependent geometries such as helicopter rotor blades, propellers, or compressor and turbine blades. For the calculation of time dependent flows, im- plicit methods offer

Jameson, Antony

439

Objectives and Features Shape interrogation is the process of extraction of information from a geo-  

E-Print Network (OSTI)

, are widely used in scientific and engineering applications. For example, the hydrodynamic shape of propeller blades has an important role in marine applications, and the aerodynamic shape of turbine blades

Patrikalakis, Nicholas M.

440

Nicholas M. Patrikalakis Takashi Maekawa Shape Interrogationfor Computer  

E-Print Network (OSTI)

and engineering applications. For example, the hydrodynamic shape of propeller blades has an important role in marine applications, and the aerodynamic shape of turbine blades determines the performance of aircraft

Reuter, Martin

Note: This page contains sample records for the topic "blade aka sinoma" 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

Ris-R-1261(EN) Fatigue Degradation and Failure of  

E-Print Network (OSTI)

. Such applications are for instance rotor blades in wind turbines, helicopter rotor blades, flywheels for energy storage, marine and aeronautical propellers, and rolls for paper machines. The purpose is to identify

442

Future Developments in Non-Ferrous Metallurgy  

Science Journals Connector (OSTI)

...In his later life he wasvery...Kelly I973) . Gas turbine blade applications...solidified turbine blades produced...of the two remaining most intractable...of the few remaining techniques...nickel alloys in gas turbine engines. For...

1976-01-01T23:59:59.000Z

443

A simple criterion for three-dimensional flow separation in axial compressors  

E-Print Network (OSTI)

Most modem blade designs in axial-flow compressors diffuse the flow efficiently over 20% to 80% of blade span and it is the endwall regions that set the limits in compressor performance. This thesis addresses the estimation, ...

Lei, Vai-Man

2006-01-01T23:59:59.000Z

444

Future Developments in Non-Ferrous Metallurgy  

Science Journals Connector (OSTI)

...associates (Kelly I973) . Gas turbine blade applications of...directionally solidified turbine blades produced by Pratt...someone with the courage and vision of Rosenhain to point...replace nickel alloys in gas turbine engines. For three reasons...

1976-01-01T23:59:59.000Z

445

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...

446

Sandia National Laboratories: Senator Bingaman Tells Sandia Wind...  

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

ClimateECEnergySenator Bingaman Tells Sandia Wind Turbine Blade Workshop That Renewable Energy Is Important to U.S. Policy Senator Bingaman Tells Sandia Wind Turbine Blade Workshop...

447

SANDIA REPORT  

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

of Energy Comparisons for Wind Farms with 40m and 100m Blades 29 7 INTRODUCTION As wind turbine blades grow longer and into the 100m+ ultra-large regime, it is important to...

448

Education Toolbox Search | Department of Energy  

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

Search Enter terms Search Retain current filters Showing 1 - 1 of 1 result. Download Wind Turbine Blade Design Blade engineering and design is one of the most complicated and...

449

On the effect of deep-rolling and laser-peening on the stress-controlled low- and high-cycle fatigue behavior of Ti-6Al-4V at elevated temperatures up to 550?C  

E-Print Network (OSTI)

and near-?-titanium alloys, especially for fan bladebehavior of a titanium Ti-6Al-4V turbine fan blade alloy isfan blades and disks in aircraft jet propulsion engines are commonly made from titanium

Ritchie, IAltenberger, RKNalla, YSano LWagner, RO

2013-01-01T23:59:59.000Z

450

Education Toolbox Search | Department of Energy  

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

involving wind speed, direction and blade design are altered. Students are directed to work in teams to design, test and analyze components of a wind turbine such as blade...

451

Experimental investigation of an aspirated fan stage  

E-Print Network (OSTI)

This thesis focuses on the use of aspiration on compressor blade design. The pressure ratio can be significantly increased by controlling the development of the blade and endwall boundary layers. This concept is validated ...

Schuler, Brian Joseph, 1974-

2001-01-01T23:59:59.000Z

452

TX-100 manufacturing final project report.  

SciTech Connect

This report details the work completed under the TX-100 blade manufacturing portion of the Carbon-Hybrid Blade Developments: Standard and Twist-Coupled Prototype project. The TX-100 blade is a 9 meter prototype blade designed with bend-twist coupling to augment the mitigation of peak loads during normal turbine operation. This structural coupling was achieved by locating off axis carbon fiber in the outboard portion of the blade skins. The report will present the tooling selection, blade production, blade instrumentation, blade shipping and adapter plate design and fabrication. The baseline blade used for this project was the ERS-100 (Revision D) wind turbine blade. The molds used for the production of the TX-100 were originally built for the production of the CX-100 blade. The same high pressure and low pressure skin molds were used to manufacture the TX-100 skins. In order to compensate for the difference in skin thickness between the CX-100 and the TX-100, however, a new TX-100 shear web plug and mold were required. Both the blade assembly fixture and the root stud insertion fixture used for the CX-100 blades could be utilized for the TX-100 blades. A production run of seven TX-100 prototype blades was undertaken at TPI Composites during the month of October, 2004. Of those seven blades, four were instrumented with strain gauges before final assembly. After production at the TPI Composites facility in Rhode Island, the blades were shipped to various test sites: two blades to the National Wind Technology Center at the National Renewable Energy Laboratory in Boulder, Colorado, two blades to Sandia National Laboratory in Albuquerque, New Mexico and three blades to the United States Department of Agriculture turbine field test facility in Bushland, Texas. An adapter plate was designed to allow the TX-100 blades to be installed on existing Micon 65/13M turbines at the USDA site. The conclusion of this program is the kick-off of the TX-100 blade testing at the three testing facilities.

Ashwill, Thomas D.; Berry, Derek S. (TPI Composites, Inc., Warren, RI)

2007-11-01T23:59:59.000Z

453

PHASE TRANSFORMATIONS, STABILITY AND MATERIALS INTERACTIONS  

E-Print Network (OSTI)

consists of a boiler, steam turbine, condenser, and variousfrom contaminated steam on turbine blade fatigue and stress

Morris, Jr., J.W.

2010-01-01T23:59:59.000Z

454

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

455

Modeling and Simulation in Material Sciences and Engineering, 1:(3),pp. 225263. COMPUTATIONAL MODELLING OF SINGLE CRYSTALS  

E-Print Network (OSTI)

in propeller and turbine blades, or as basic building blocks of numerous material systems, such as polycrys

Ortiz, Michael

456

Eighth International Conference on High Speed Machining December 8-10, 2010 SMOOTHNESS OPTIMIZATION OF 5-AXIS HIGH-SPEED FLANK  

E-Print Network (OSTI)

such as turbine blades, ship propellers or impellers. Since most of the surfaces of these complex parts are non

Paris-Sud XI, Université de

457

Study of the cavitating instability on a grooved Venturi profile  

E-Print Network (OSTI)

, on converging-diverging obstacles or on blades in turbines and propellers is responsible for many issues like

Paris-Sud XI, Université de

458

Swept Volume Parameterization for Isogeometric Analysis  

E-Print Network (OSTI)

of interesting free-form shapes, such as blades of turbines and propellers, ship hulls or wings of airplanes

Jüttler, Bert

459

RIS0-M-2531 S DESIGN BASIS FOR SMALL TO MEDIUM SIZE DANISH WINDMILLS  

E-Print Network (OSTI)

-called Danish windmill concept, i.e. the three-bladed, fixed-pitch upwind rotor dual-induction generator

460

Water and Energy Interactions  

E-Print Network (OSTI)

birds, the overall water requirements are minimal and exist only for washing the blades of wind turbines

McMahon, James E.

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "blade aka sinoma" 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

Distributed Energy Systems in California's Future: A Preliminary Report Volume 2  

E-Print Network (OSTI)

wind turbine, which is basically a propeller (2 or 3 blades) mounted on a tall (approximately 110 meters) tower.

Balderston, F.

2010-01-01T23:59:59.000Z

462

Physical bases for the design of highly efficient rotors in centrifugal pumps  

Science Journals Connector (OSTI)

1. Existing notions concerning optimum (less than 40) angles of blade inclination in the rotors of centrifugal ...

P. R. Khlopenkov

1979-07-01T23:59:59.000Z

463

Ris-R-1543(EN) Aerodynamic investigation of Winglets on  

E-Print Network (OSTI)

Risø-R-1543(EN) Aerodynamic investigation of Winglets on Wind Turbine Blades using CFD Jeppe Johansen and Niels N. Sørensen Title: Aerodynamic investigation of Winglets on Wind Turbine Blades using of the aerodynamics around a wind turbine blade with a winglet using Computational Fluid Dynamics, CFD. Five winglets

464

Ris-R-1353(EN) Numerical Investigation of Three Wind  

E-Print Network (OSTI)

rotor is the one de- scribed in Antoniou et al [3]. Here a 95 kW Tellus wind turbine with LM8.2 bladesRisø-R-1353(EN) Numerical Investigation of Three Wind Turbine Blade Tips Jeppe Johansen, Niels N around three different tip sha- pes on a rotating wind turbine blade is investigated and analyzed using

465

Ris-R-1065(EN) Airfoil Characteristics for Wind Turbines  

E-Print Network (OSTI)

as input 3D CFD computations and wind tunnel measurements on a 41-m full-scale rotor with LM 19.1 blades rotor with LM 19.1 and LM 19.0 blades, respectively. The method requires measurements or CFD for use in the Blade Element Momentum (BEM) method are derived by use of systematic methods

466

Determining CMM Motion on Free-Form Objects Using Implicit Polynomials1 William Wolovich, Hulya Yalcin  

E-Print Network (OSTI)

One often must compare several (ideally) identical objects to a model object, such as the turbine blades in a jet engine, the propeller blades of a ship, or the contoured grooves in a gear]. More serious consequences can occur if manufactured objects, such as the turbine blades in a jet engine

Yalcin, Hulya

467

Determining CMMMotion on FreeForm Objects Using Implicit Polynomials 1 William Wolovich, Hulya Yalcin  

E-Print Network (OSTI)

One often must compare several (ideally) identical objects to a model object, such as the turbine blades in a jet engine, the propeller blades of a ship, or the contoured grooves in a gear]. More serious consequences can occur if manufactured objects, such as the turbine blades in a jet engine

Yalcin, Hulya

468

ASCE Engineering Mechanics Division Conference, Baltimore Maryland, 1999. VIBRATION OF DYNAMIC SYSTEMS UNDER CYCLOSTATIONARY  

E-Print Network (OSTI)

constant statistical properties. Systems like a submarine propeller, a turbine blade and an internal-uniform flow field. For example, as the blades of a gas turbine rotate, they encounter a random velocity field of a turbine blade, one will find a significantly larger maximum displacement over a period than if one uses

Nikolaidis, Efstratios

469

Texas Fluid Dynamics Meeting, 2013 STABILITY OF ROTOR WAKES.  

E-Print Network (OSTI)

et al.(2000) [1] did eigenvalue stability analysis on multi-bladed helicopter rotor wakes and found, of multi-bladed helicopter rotor wake. Despite various analytical, numerical and flow visualiza- tion-scale four- bladed helicopter rotor in hover [6,7], revealed some impor- tant observations. Investigations

Tinney, Charles E.

470

This is an author-deposited version published in: http://oatao.univ-toulouse.fr/ Eprints ID: 6520  

E-Print Network (OSTI)

, minimum energy loss, low Reynolds number, optimum propeller/rotor blades, passively adaptive blades, long concept is inapplicable for small-sized rotor (blade ~3mm of thickness) due to its complexity-Marc Design of Optimum Torsionally Flexible PropRotors for Tilt-Body MAVs. (2012) Applied Mechanics

Mailhes, Corinne

471

Acoustic modulation effect of rotating stator/rotor interaction noise  

E-Print Network (OSTI)

order, B(k) is the number of rotor blades, (k) is the angular velocity of the rotor, (l) is the angular on the rotor blades and on the fixed parts. According to the Ffowcs-Williams and Hawk- ings analogy comes from the periodic forces on the rotor blades and the forces on the other static parts of the fan

Boyer, Edmond

472

JOURNAL OF PROPULSION AND POWER Vol. 9, No. 4, July-Aug. 1993  

E-Print Network (OSTI)

the rotor blades which is a function of the rotor circumferential position. This, in turn, results study show that the magnitude of this effect is a strong function of rotor-stator blade row spacingJOURNAL OF PROPULSION AND POWER Vol. 9, No. 4, July-Aug. 1993 Blade Row Interaction Effects

Giles, Mike

473

EFFECT OF A DAMAGE TO MODAL PARAMETERS OFA WIND TURBINE Gunner Chr. Larsen1  

E-Print Network (OSTI)

conditions (cf. Figure 1). The blade was positioned horizontally with the suction side pointing towardsEFFECT OF A DAMAGE TO MODAL PARAMETERS OFA WIND TURBINE BLADE Gunner Chr. Larsen1 , Peter Berring1 testing campaign on a 34m long wind turbine blade mounted on a test-rig under laboratory conditions

Boyer, Edmond

474

This is an author-deposited version published in: http://oatao.univ-toulouse.fr/ Eprints ID: 11897  

E-Print Network (OSTI)

, Guirong Optimization of Nano-Rotor Blade Airfoil Usinf Controlled Elitist NSGA-II. (2014) International Optimization of Nano-Rotor Blade Airfoil Using Controlled Elitist NSGA-II Zhen Liu1a, Longlei Dong1b, Jean. Nano rotor blade airfoil optimization is a multi-objective problem since the airfoil suffers a wide

Mailhes, Corinne

475

NEW COMPUTATIONAL METHODS FOR THE PREDICTION AND ANALYSIS OF HELICOPTER ACOUSTICS \\Lambda  

E-Print Network (OSTI)

numbers greater than 0.9. The sec­ ond type of noise comes from the interaction of the rotor blades the causes of the offending noise. The third requirement is a way to alter the rotor blade motion. These near­field solutions are then interpo­ lated onto a surface that completely encloses the rotor blades

476

JOURNAL DE PHYSIQUE IV Colloque (37, supplement au Journal de Physique 111, Vol. 1, dkembre 1991  

E-Print Network (OSTI)

, France ABSTRACT In order to improve erosion resistance and mbologicalproperties of TA6V turbine blades satisfying mbological Ill. INTRODUCTION The blade geometricintegrityand stagesairtightness are among the main, the latter by the wear of blade tips against the casingairtightrings. The aim of this study

Boyer, Edmond

477

RESULTS AND DISCUSSION -Part I UH60A Rotor in High Speed Forward Flight  

E-Print Network (OSTI)

rotor for a number of hover and forward flight conditions. This rotor is a four-bladed configuration.2: Geometric Twist Distribution for the UH-60A Rotor In the experiment, the blades were trimmed to eliminate the one-per-rev flapping. The rotor blade sectional twist including elastic deformation is available

478

VOL. 6, NO. 5, SEPT.-OCT. 1990 J. PROPULSION 621 Stator/Rotor Interaction in a Transonic Turbine  

E-Print Network (OSTI)

on the rotor blade, reflects upstream, and then reflects again off the stator blade Presented as Paper 88 and shows the large unsteadiness in the lift on the rotor blade. Basic NumericalMethod The flowfiVOL. 6, NO. 5, SEPT.-OCT. 1990 J. PROPULSION 621 Stator/Rotor Interaction in a Transonic Turbine

Giles, Mike

479

J. Phys. III France 2 (1992) 527-544 APRn~ 1992, PAGE 527 Classification  

E-Print Network (OSTI)

in the unsteady aerodynamics acting on the individual blades of a rotor. Consequently, the blades do not respond 47.30M 47.60 Analysis of forced response of detuned blade rows Hsiao-Wei. D. Chiang (*) and Sanford, structural, and combined aerodynamic-structural detuning of a loaded rotor operating in an incompressible

Boyer, Edmond

480

To cite this document: Mohd-Zawawi, Fazila and Prothin, Sebastien and Lv, Peng and Benard, Emmanuel and Moschetta, Jean-Marc and Morlier, Joseph Study of a Flexible  

E-Print Network (OSTI)

capable of providing a predictive and reliable data in blade geometry and performance for rotor modes. 1 blade twist control method for conventional proprotor of tilt-rotor aircraft using extension twist in fatigue performance and damage tolerance of the blade. Additionally, the difference in rotor speeds

Mailhes, Corinne

Note: This page contains sample records for the topic "blade aka sinoma" 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

Numerical investigation of abradable coating wear through plastic constitutive law: application to aircraft engines  

E-Print Network (OSTI)

distance between blade tips and surrounding casings. Together with new technologies involving higher cas as a robust solution offering several advan- tages: reducing potential damage to the incurring blade as well content of the blade re- sponse is clearly affected by the presence of abradable coatings. It seems

Boyer, Edmond

482

Vortex Jitter in Hover Swathi M. Mula  

E-Print Network (OSTI)

78712, USA Abstract The trajectory of the tip vortex of a reduced-scale, 1 m diameter, four-bladed rotor condition of the rotor is at a blade loading of CT / = 0.0645 and a rotational speed of 1240RPM wake dominated by the tip vortices shed from the rotor blades. The complexity of the flow

Tinney, Charles E.

483

Leakage and rotordynamic effects of pocket damper seals and see-through labyrinth seals  

E-Print Network (OSTI)

and PDS with two to six blades. Leakage and pressure measurements were made with air as the working fluid on twenty-two seal configurations. Increasing seal blade thickness reduced leakage by the largest amount. Blade profile results were more equivocal...

Gamal Eldin, Ahmed Mohamed

2009-05-15T23:59:59.000Z

484

Leakage and rotordynamic effects of pocket damper seals and see-through labyrinth seals  

E-Print Network (OSTI)

and PDS with two to six blades. Leakage and pressure measurements were made with air as the working fluid on twenty-two seal configurations. Increasing seal blade thickness reduced leakage by the largest amount. Blade profile results were more equivocal...

Gamal Eldin, Ahmed Mohamed

2008-10-10T23:59:59.000Z

485

2009 ASME WIND ENERGY SYMPOSIUM Static and Fatigue Testing of Thick Adhesive Joints for  

E-Print Network (OSTI)

1 2009 ASME WIND ENERGY SYMPOSIUM Static and Fatigue Testing of Thick Adhesive Joints for Wind as wind blade size has increased. Typical blade joints use paste adhesives several millimeters thick aircraft, which are also of relevance to wind blades in many instances. The strengths of lap-shear and many

486

On the application of the KitagawaTakahashi diagram to foreign-object damage and high-cycle fatigue  

E-Print Network (OSTI)

with such HCF related failures in titanium alloy blades [1­4]. Specifically, FOD has been found to reduce the fatigue strength of fan and compressor blades, principally by causing stress-raising notches [5 for evaluating the detrimental effect of FOD on HCF failures in Ti­ 6Al­4V blade alloys. ? 2002 Elsevier Science

Hutchinson, John W.

487

Active load alleviation is getting more and more important in  

E-Print Network (OSTI)

energy. Nowadays modern aircraft and wind turbine blades are equipped with means to actively alleviate rotating and stationary parts of the windmill, is easier. As the wind turbine blades rotate, in prior state of the windmill construction. Weight reduction As there is no more need for a large actuator in the turbine blade

Langendoen, Koen

488

Energy Efficiency and Conservation Block Grant Program  

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

AK-TRIBE-NANWALEK (AKA ENGLISH BAY) AK-TRIBE-NANWALEK (AKA ENGLISH BAY) Location: Tribe AK-TRIBE- NANWALEK (AKA ENGLISH BAY) AK American Recovery and Reinvestment Act: Proposed Action or Project Description The Nanwalek IRA Council proposes to explore the feasibility of wind generation capacity specifically for the purpose of determining if wind generation is a viable alternative to the high cost of energy in this remote Alaskan village. Conditions: None Categorical Exclusion(s) Applied: A9, A11 *-For the complete DOE National Environmental Policy Act regulations regarding categorical exclusions, see Subpart D of 10 CFR10 21 This action would not: threaten a violation of applicable statutory, regulatory, or permit requirements for environment, safety, and health, including DOE and/or Executive Orders; require siting, construction, or major expansion of waste storage, disposal, recovery, or

489

U.S. Department of Energy NEPA Categorical Exclusion Determination Form  

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

Project Title: City of Lake Worth-Youth Empowerment Center, aka "Osborne Center" Lighting Replacement Project Title: City of Lake Worth-Youth Empowerment Center, aka "Osborne Center" Lighting Replacement Project Location: Florida City of Lake Worth Proposed Action or Project Description: RIN#: The City of Lake Worth will leverage in the form of manual labor renovating/retrofitting all fluorescent lighting fixtures in the Youth Empowerment "Center, aka the "Osborne Center" where the City of Lake Worth Recreation Department holds a number of youth related and crime prevention programs, in order to meet specific energy reduction targets. · The Osborne Center was built in the early 1970's and is not classified as Historic. Class of Action(s) Applied: X- B2.5 Safety and environmental improvements of a facility, replacement/upgrade of facility components

490

PASIG_LBNL_Storage.ppt  

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

Supporting DOE Science Supporting DOE Science Jason Hick jhick@lbl.gov NERSC LBNL http://www.nersc.gov/nusers/systems/HPSS/ http://www.nersc.gov/nusers/systems/NGF/ May 12, 2011 * Operated by UC for the DOE * NERSC serves a large population - Approximately 4000 users, 400 projects, 500 codes - Focus on "unique" resources * High-end computing systems * High-end storage systems - Large shared GPFS (a.k.a. NGF) - Large archive (a.k.a. HPSS) * Interface to high speed networking - ESnet soon to be 100Gb (a.k.a. ANI) * Our mission is to accelerate the pace of discovery by providing high performance computing, data, and communication services to the DOE Office of Science community. The Production Facility for DOE Office of Science 2010 storage usage by area of science.

491

Drum lid removal tool  

DOE Patents (OSTI)

A tool for removing the lid of a metal drum wherein the lid is clamped over the drum rim without protruding edges, the tool having an elongated handle with a blade carried by an angularly positioned holder affixed to the midsection of the handle, the blade being of selected width to slice between lid lip and the drum rim and, when the blade is so positioned, upward motion of the blade handle will cause the blade to pry the lip from the rim and allow the lid to be removed.

Pella, Bernard M. (Martinez, GA); Smith, Philip D. (North Augusta, SC)

2010-08-24T23:59:59.000Z

492

Development and Commissioning of a Small/Mid-Size Wind Turbine Test Facility: Preprint  

SciTech Connect

This paper describes the development and commissioning tests of the new Clarkson University/Center for Evaluation of Clean Energy Technology Blade Test Facility. The facility is a result of the collaboration between the New York State Energy Research and Development Authority and Intertek, and is supported by national and international partners. This paper discusses important aspects associated with blade testing and includes results associated with modal, static, and fatigue testing performed on the Sandia National Laboratories' Blade Systems Design Studies blade. An overview of the test capabilities of the Blade Test Facility are also provided.

Valyou, D.; Arsenault, T.; Janoyan, K.; Marzocca, P.; Post, N.; Grappasonni, G.; Arras, M.; Coppotelli, G.; Cardenas, D.; Elizalde, H.; Probst, O.

2015-01-01T23:59:59.000Z

493

Microsoft Word - LM SMG Jun 2011 Rev 11 Final.doc  

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

LM Site Management Guide LM Site Management Guide aka the "Blue Book" June 2011 Revision 11 Table of Contents 1.0 - Introduction........................................................................................................ Page 3 2.0 - Purpose................................................................................................................ Page 3 3.0 - Site Types ............................................................................................................ Page 4 4.0 - Site Counts .......................................................................................................... Page 4 5.0 - Site Nomenclature .............................................................................................. Page 5

494

Domestic violence and information communication technologies  

Science Journals Connector (OSTI)

......psychological abuse directed against...phones and the Internet, are pervasive...leisure activities (Young, 1980). However...who experience abuse. 2 All names...Cyberstalking and internet pornography...Harassment in the Internet Age and How to...leaving, aka, Why abuse victims stay......

Jill P. Dimond; Casey Fiesler; Amy S. Bruckman

2011-09-01T23:59:59.000Z

495

Domestic violence and information communication technologies  

Science Journals Connector (OSTI)

......and psychological abuse directed against...mobile phones and the Internet, are pervasive in...those who experience abuse. 2 All names have...Cyberstalking and internet pornography: gender...Harassment in the Internet Age and How to Protect...leaving, aka, Why abuse victims stay. Colorado......

Jill P. Dimond; Casey Fiesler; Amy S. Bruckman

2011-09-01T23:59:59.000Z

496

Rheinische Friedrich-Wilhelms-Universitat Bonn Institut fur Informatik I  

E-Print Network (OSTI)

Bonn, Germany. 2 Braunschweig University of Technology, Computer Science, Algorithms Group, M¨uhlenpfordtstra?e 23, 38106 Braunschweig, Germany #12;#12;Abstract We investigate the online exploration problem (aka. Or the agent has to visit every part of the environment for cleaning or lawn mowing, and a cell

Klein, Rolf

497

Breaking Up is Hard to Do: Security and Functionality in a Commodity Hypervisor  

E-Print Network (OSTI)

, their administrative features and benefits have been equally important. For example, hardware fail- ures are a fact of life for large hosting environments; such envi- User A's VM Hypervisor Control VM aka Domain 0 User B hardware replacements as well as unexpected failures [8, 15]. Hardware diversity is also inevitable

Yang, Junfeng

498

Co-Simulation Tools for Networked Control Systems  

E-Print Network (OSTI)

, unmanned vehicles, home robotics, distributed virtual environments, power distribution, and building-simulation. The first two tools are extensions to ns-2 called Agent/Plant and NSCSPlant; the third tool integrates and control of the physical world. (right) A networked control system with one controlled system (a.k.a. plant

Branicky, Michael S.

499

MP-Boost: A Multiple-Pivot Boosting Algorithm and Its Application to Text  

E-Print Network (OSTI)

for building multi-label (aka n-of-m) text classifiers. AdaBoost.MH be- longs to the family of "boostingBoost.MH [1] is a popular supervised learning algorithm for building multi-label text classifiers. Ada" algorithms, and works by iteratively building a committee of "decision stump" classifiers, where each

Sebastiani, Fabrizio

500

Featureengineeringnews The Federal government posits that in the  

E-Print Network (OSTI)

is investing in nanotechnology R&D at a level that is comparable if not larger than Federal R&D contributions Featureengineeringnews The Federal government posits that in the future, nanotechnology with its-Enabled Device and Energy Tech- nologies, a.k.a. the Nano Center. Towe, an expert in both Electrical and Computer

McGaughey, Alan