Conceptual Model
Idea Matrix
Graphical Model
Mathematical Model
Changes we made based on graphs:
- Because most power was generated using 4 blades, we stuck with our original blade plane
- The weight was most effected by the sand so we didn't have much control over it
- The data didn't change our original height because we wanted to keep it near the middle of the fan
Working Model
Test and AdjustWe noticed when the pinwheel was larger, the energy readings would just reach .35
When we used a smaller pinwheel, the highest point it reached was .64. When the pinwheel was glued on closer to the motor's base, it spun slower than when it was closer to the edge of the rod. We determined the looser the pinwheel, the faster it spun and more energy was produced. At times, the pinwheel would hit the water bottle, effectively slowing it down. We altered the bottle's shape to stop the interference |