Aerodynamic Upgrades Improving turbine performance with vortex generators and gurney flaps BeneFits • IncreaseAEPbyupto1.2%* • High-qualitymaterialsandinstallation • CertifiedbyDNV-GL tURBine PLAtFORMs • V82-1.65MW • V90-1.8/2.0MW • V90-3.0MW • V100-1.8/2.0MW *In IEC3 class conditions and on turbines where Vortex Generators and Gurney Flaps can be combined. At Vestas, we work continually to improve the performance of wind turbines. For more than 30 years, we have harnessed innovation to produce ever more efficient wind turbines. Our Aerodynamic Upgrades provide the latest development in wind turbine blade technology to increase the profitability of your previously-installed fleet. Vortex generators Placed strategically along the leeward side of the blade, vortex generators reduce the separation of air flow in the root-region of the blade and increase lift. Vestas vortex generators are specifically designed for Vestas blades to improve the aerodynamic performance of wind turbines and increase total energy output by up to 0.8%*. Vortex generators are used on their own on V82 turbine blades and in combination with gurney flaps on V90 and V100 turbine blades. Gurney flaps The latest addition to our Aerodynamic Upgrades family is the gurney flap. Gurney flaps are small, flat plates fitted at a right angle to the windward side of the blade along the trailing edge. They effectively change the camber of the aerofoil near the trailing edge and increase lift. In combination with vortex generators, gurney flaps will increase annual energy production by up to 1.2%*. 08/2015 – EN
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