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Reducing blade manufacturing cost while maintaining aerodynamic performance of Vertical Axis Wind Turbines

Reduzierung der Flügel-Herstellkosten bei gleichzeitiger Sicherung der aerodynamischen Leistung von Vertikalachs-Windturbinen
: Pröhl, Marco; Werner, Markus; Domínguez, Diego; Troyer, Tim de; Runacres, Mark; Feng, Guoying

Poster urn:nbn:de:0011-n-2869305 (914 KByte PDF)
MD5 Fingerprint: 9c97f29b9c37494cf9696bef6a469a1e
Erstellt am: 17.4.2014

Volltext urn:nbn:de:0011-n-286930-19 (1.8 MByte PDF)
MD5 Fingerprint: 8d342832bf0b272c1cccdc37fbd73343
Erstellt am: 17.4.2014

European Wind Energy Association -EWEA-, Brussels:
Europe's Premier Wind Energy Event, EWEA 2014. CD-ROM : 10-13th March 2014, Barcelona, Spain
Barcelona: EWEA, 2014
10 S.
Europe's Premier Wind Energy Event (EWEA) <2014, Barcelona>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IWU ()
blade; Flügel; aerodynamics; structure; manufacturing; sheet metal; Blechfertigung; IHU; Kosten; hydroforming; VAWT; wind turbine

Vertical axis wind turbines have experienced a renewed impulse during the last few years, with important research efforts focused on them. This work is focused in the development of new blade designs capable of notably reduce their manufacturing cost and, consequently, improve global profitability. Thanks to the aerodynamic and structural analyses that have been carried out, a final blade design has been achieved. It is based on the use of hydroforming manufacturing techniques with metal sheets, creating 3 meters blades to be used in a turbine capable of produce about 1kW. First estimations show that with the positive effects of a mass use and production (economies of scale), such metal blades have a 90 % reduction potential in their production costs compared to fibre-reinforced ones for single turbines.