The overall objective of this work package is the design of the WINDUR rotor. An iterative optimization design process is proposed, using performance simulation tools of CENER. Real data on wind power resource in urban areas (measured in work package 2) will be used to input the performance model on wind conditions. Optimization design parameters are established according to the project objectives of reducing rotor weight and facilitating its installation as a rooftop mounted system.
Key aspects to urban integration such as noise, vibrations, transmission and aesthetic criteria will also be considered. The optimization process based on simulation tools will deliver a preliminary rotor design which will be produced at scale, for wind tunnel testing. Aerodynamic performance will determine needs for design refinements and a final WINDUR rotor design will be eventually delivered. MASTERGAS and Machachi will contribute to the design validation from the perspective of its installation.
Specific technical installation objectives:
– To refine simulation parameters (such as tip speed ratio) taking into account urban wind values according to data measured at real sites by the University of Uppsala (WP2), and to adapt simulation tools (CFD tool) for simulation of VAWT, particularly in relation to dynamic stall.
– To deliver an optimum rotor design, according to performance simulated predictions.
– To validate the aerodynamic and structural response of the rotor on scale prototypes under wind tunnel testing.
– To deliver a lab validated rotor, with performance optimized for urban wind characteristics and dimensionality optimized for rooftop installation.