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Once You Pop, the Fun Don’t Stop. Grab and Go Electricity. Sean Meek Chris Jones Kyle Johnson. S ummary. Goal: Build generator converting wind energy to electricity Parts: Total cost: ~$20 Scrap wood “Pringles” Can(s) Magnetic Wire Magnets. Generator. Problems.
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Once You Pop, the Fun Don’t Stop Grab and Go Electricity Sean Meek Chris Jones Kyle Johnson
Summary • Goal: • Build generator converting wind energy to electricity • Parts: • Total cost: ~$20 • Scrap wood • “Pringles” Can(s) • Magnetic Wire • Magnets
Problems • Frequent problems with friction • Difficulty in axis turning and staying in place without too much friction • Fixed problem by filing axis to a point on the bottom, replacing the contact point with metal and removing the wooden piece that held it in place
Calculations • P = (1/2)pAv3 • P= power (W) • p = air density (kg/m3) • A = area of fan (m2) • V = wind velocity (m/s2) • Ptheo = (1/2)(1.225 kg/m3)(0.0189 m2)(1.7 m/s2)3 • Ptheo = 0.0568 W
Calculations (continued) • Voltageactual = 0.9 Volts • Pact = 0.01 W • Efficiency = Pact/Ptheo • E =(0.01 W)/ (0.0568 W) • E = .1758 = 17.6%
Conclusion • Goal reached • Requirements met • What we learned: • How to work in a group effectively • How to apply concepts from EF 152
