Gone with the Wind
CSEF · 2008 Aerodynamics/ Hydrodynamics (Junior Division Only)
Overview
Objectives/Goals My partner were attempting to find which windmill blade shape whould produce the most electricity. Methods/Materials What we did is build a small windmill and shapes for the blades that will be all the same surface area. then we tested the blades electrical output. we used a fan, wood planks, nails, a hammer, a battery, and a millivoltimeter Results The information we learned was the electricity generated by each blade shape. both the rectangles and squares were close but the triangles didn't compare. the squares and rectangles where in the high eighties but the triangles were in the thirties. Conclusions/Discussion the reason we belived the squares one was because they had the biggest width area out of all the shapes. our biggest question is if this is true, why aren't we using this technology on windmills today. this must be because of bigger scales and weight.
Summary statement
The design and testing of different windmill blade shapes.
Help received
Mother helped to proofread and design the board, Mrs. Avila approved our project and told us how to do the booklet, Lisa Skeldon helped gives us ideas in the process of the project
Competition history
- CSEF 2008
Resources
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Gone with the Wind
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Source: California Science & Engineering Fair public projects