- Published: 19 May 2015 19 May 2015
seebaWIND Service GmbH is upgrading four Fuhrländer FL2500 wind turbines with aerodynamically improved rotor blades. The product was developed by BayWa r.e. and adapted for Fuhrländer FL2500 and Nordex N100 wind turbines with the help of seebaWIND Service.
In a further development, the partners have been able to increase the turbine yield by lengthening the aerodynamically active profiles of the blades and adding winglets to the tips. In order to increase the surface area at the base of the blade and lengthen the aerodynamically active profile, seebaWIND is also fitting the BayWa r.e. blades at the Basdahl location with profile attachments. With this system, the turbulent boundary layer is sucked away, conducted from the base to the tip on the inside of the blade, and then exits through small holes in the winglets. As with modern aeroplanes, the winglets on the end of the rotor blades reduce the induced drag. Its jagged edges improve the airflow even more, which further increases the efficiency at the tips. The aerodynamic improvements not only increase the torque and increase the yield, but also reduce the noise emission. Because the concept works without control and positioning mechanisms, it is both reliable and maintenance-free. The first wind turbine at the Wettendorf wind farm to be fitted with the improved rotor blades is due to go into operation at the beginning of July.