The Effect of Wind Turbine Blade Size on Electricity Generation
Applied Technology- Grade:
- 6
- Teacher:
- Norman Dejan
My project, “The Effect of Wind Turbine Blade Size on Electricity Generation,” explores how changing the size of wind turbine blades affects how much electricity is produced. I chose this project because renewable energy is important for protecting our environment, and I wanted to understand how wind turbines work and how engineers can improve them. In my experiment, I tested small, medium, and large blades using a hair dryer as a wind source and measured the voltage produced. The results showed that the medium blade generated the most electricity (1.94 volts), the small blade was slightly lower (1.91 volts), and the large blade generated the least (1.05 volts) and did not turn on the LED. My overall conclusion is that blade size directly affects electricity generation, and bigger blades do not always produce more power because they may be too heavy to spin efficiently. This project is important because it helps explain how wind turbines can be designed to produce the most energy, supporting cleaner and more sustainable electricity for the future.
You built a working wind turbine model and tested how blade size affects electricity generation, which is an excellent real-world engineering topic. I was impressed that you measured voltage and compared different blade sizes. Your discussion clearly explains why the large blade may have performed worse due to weight. To strengthen your project, consider performing multiple trials and measuring wind speed more precisely. You are thinking like an engineer exploring renewable energy solutions. Keep experimenting and refining your design!
You created a well-organized engineering investigation exploring how blade size affects electricity generation. I was impressed that you built a working wind turbine model and measured voltage output rather than relying only on whether the LED turned on. Your results clearly show that blade size impacts performance, and your discussion demonstrates thoughtful analysis of why the medium blade worked best. To strengthen your project even further, consider performing multiple trials and adding more detailed measurements of wind speed and blade dimensions. Great work exploring renewable energy engineering!
Strong renewable-energy question and clear conclusion: blade size changes electricity output, and larger blades can be less efficient.
Nice use of voltage measurements + graph to compare blade sizes.
Innovative and well-thought-through project. welldone
You asked a smart question, did real research, and thought carefully about your hypothesis. That is exactly how good science begins. Keep going! Your curiosity about wind energy and how it can power our world matters.