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Objective
My project investigates the potential of Vertical Axis Wind Turbines (VAWTs) for generating renewable energy in Ireland, particularly along highways influenced by traffic-induced wind. A Savonius VAWT made from recycled materials was tested under controlled conditions, and different rotor configurations were analysed using Irish wind data. Comparisons with Archimedes screw turbines suggest that VAWTs could serve as practical supplementary energy sources in locations where Horizontal Axis Wind Turbines (HAWTs) are less feasible.
Brief Outline of Steps
I researched various types of VAWTs, focusing on Savonius and Archimedes screw designs. I constructed three Savonius rotors from cardboard and mounted them on motors connected to a multimeter and LED. Using a hair dryer to provide a constant wind source, I measured the voltage output, repeated trials for consistency, compared results, and explored alternative turbine designs and motor options for future improvements.
Results
The three-bladed curved turbine generated significantly more energy than the two-bladed designs because it could capture more air, making it a more efficient option.
Conclusion
The experiment supports the hypothesis that VAWTs could be used to harness wind energy from highways in Ireland. The three-blade Savonius design demonstrated superior performance, and its drag-based mechanism is well suited to the turbulent winds created by passing vehicles. With further development and the use of more durable materials, VAWTs could provide a low-cost, sustainable energy solution for roadside applications. Although more complex calculations would be required for a fully accurate assessment, this project provides an initial overview of the potential benefits of installing VAWTs along Irish highways.
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