KidWind Collaborative, April 2012
School Name:
Teacher’s Name:
Grade Level:
Course:
Team Name:
Students’ Names:
Purposes:
1. To learn about wind mill construction including:
Pitch, drag, shape, tip speed, hub, nacelle, wind power, etc.
2. To develop creativity and problem solving skills
3. To keep accurate records
Materials:
1. Blade-building tips handout
2. Wind mill set up
3. Dowels
4. Hub
5. Window Fan
6. Blade materials
Procedure:
1. See demonstrations on blade size, number and pitch
2. Find any materials you can at home and build your own blades on a standard hub.
3. Incorporate any technology you would like.
4. Test your blade design to determine the maximum voltage output
5. Compare your results to the rest of the class by doing the calculations
Results:
First Variable:
Second Variable:
Third Variable:
Fourth Variable
Final Design (please include photograph with or without students. If students are
pictured, a signed media release for each student pictured must also be included)
1. Number of blades _____________
2. Mass of blades and hub _____________
3. Radius of blades _________________________
4. Pitch of blades _____________________
5. Sketch of blades
6. Maximum output ___________
7. Class average output _____________
8. Your percent variation
Conclusion
Describe the design that produced maximum output.
What would you do differently to get the most voltage output?