Construction and Performance Testing of an Electricity Producing Wind Turbine
Physical Sciences and Mathematics | Physics
Adam Whitten, Physics
A growing interest in renewable energy coupled with a heightened cognizance of personal energy consumption has led to an increasingly popular trend of private energy production. Small sized wind turbines are one of the most common methods of off-grid power production. This research provides insight into the viability and efficiency of using small wind turbines to generate power. A horizontal axis wind turbine with three blades was constructed to charge a 12-Volt battery. The turbine stood 9.2-feet (2.8-meters) and had a rotor diameter of 25.45-inches (0.65-meters). A permanent magnet DC motor was used as the generator. The average power output for wind speeds in the interval 0 m·s -1 to 8 m·s -1 were plotted and fit to a 4th degree polynomial to create a power curve characterizing the turbine’s performance. Overall, the average power output of the turbine was 6.1 ± 0.5-Watts (W). The average fractional efficiency of the turbine was 0.158 ± 0.024. Future research includes long-term data collection and further performance analysis by determining the power coefficient and tip speed ratio of the wind turbine.
Rollag, Kelsey, "Construction and Performance Testing of an Electricity Producing Wind Turbine" (2015). Honors Theses, 1963-2015. 102.