File:Alcoa-10kW-VAWT-Somerset-PA-c1981-Sequence-100.jpg
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[edit]DescriptionAlcoa-10kW-VAWT-Somerset-PA-c1981-Sequence-100.jpg |
English: Archival photos document an installation sequence for an 8-kW prototype Darrieus wind turbine developed by Alcoa, the giant aluminum manufacturer, in 1981 near Somerset, Pennsylvania. Alcoa developed this unique design of a cantilevered Darrieus as part of the spinoffs from Sandia’s VAWT research program. Unlike other Darrieus turbines, this model does not use guy cables to hold the turbine upright. Further, the torque or central tube was made from spiral welded drainage pipe in an attempt to cut fabrication costs. |
Date | |
Source | Own work |
Author | Paul Gipe |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 00:00, 2 March 2023 | 800 × 1,200 (210 KB) | Paul Gipe (talk | contribs) | Uploaded own work with UploadWizard |
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Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | ArcSoft PhotoStudio |
File change date and time | 2013-03-18T14:42:47-07:00 |
Exif version | 2.2 |
Date and time of digitizing | 16:57, 14 March 2013 |
Image width | 800 px |
Image height | 1,200 px |
Color space | Uncalibrated |
Width | 800 px |
Height | 1,200 px |
Pixel composition | RGB |
Number of components | 3 |
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Date metadata was last modified | 04:13, 1 March 2023 |
Rating (out of 5) | 0 |
Unique ID of original document | EC93F8717E98948F23828D5F63DE53EC |
IIM version | 2 |