The first case study used in this project was the deployment of ducted wind turbines on the roof of the James Weir building. The wind predominantly comes from a south westerly direction in Glasgow, so it would be important to place the turbines on the south and west facing edges of the roof to capture as much energy as possible.
The size of the James Weir building allows for the integration of 40 south facing turbines and 85 south facing turbines. This is due to the current size of the turbine units, which are approximately 600mm across (with an area of approximately 0.4m 2). The results from the modelling exercise predict an annual energy yield of 4500kWh from this set-up.
With a building like the James Weir having a very large electrical demand over the year (approximately 1.5GWh), the contribution from the ducted wind turbines is very small (less than 1%). This leads to the conclusion that for a building like the James Weir, these kinds of turbines would be unsuitable for investment.
The other case study that is important is the Newberry Tower at the Glasgow School of Art. Here, a 2.5kW Proven turbine will be positioned on the tallest part of the tower. Unlike the ducted wind turbines, this kind of turbine will not be affected as much by the direction of the wind. The shape of the turbine casing will help the unit to yaw as the wind changes direction. The response of this process is unknown, and may have a small impact on the energy capture from this device. However, the model was adapted to suit this kind of turbine and accounting for the height of the Newberry tower (90m above sea level) the annual energy yield prediction is 6800kWh.