ROSEO: Novel Savonious-type BIWT Design based on the Concentration of Horizontal and Vertical Circulation ofWind on the Edge of Buildings

In this paper a new Building Integrated Wind Turbine (BIWT) called ROSEO-BIWT is presented. The ROSEO-BIWT is installed on the edge of the buildings and it consists of a Savonius wind turbine and two concentration panels that have the purpose of accelerating the usual horizontal wind together with the vertical upward air stream on the wall of the building, improving the performance of the wind turbine and also getting a good architectural integration. We have studied its hypothetical performance and design configuration in a tall building of Bilbao using wind data from the reanalysis ERA-Interim (European Centre for Medium-Range Weather Forecasts' reanalysis), from an anemometer to calibrate the data, and its real small-scale behavior in a wind tunnel. Promising preliminary results have been obtained, which could suppose an energy production increment of 20%.