EF 152

WindElectric EnergyDeviceBrought to you by…

Alex Dreifke

Scott Gollobin

Corey Zusin

Device Overview

• This device is used to harness the kinetic energy of wind and transform it into electric energy

• Household appliances and everyday materials

• Total cost was about $15

How it works

• Old fan blade and bearing connected to magnet

• Black cardboard box houses the magnet with 28 gauge copper wire to transfer the energy ultimately to the light bulb

• Duct tape is amazing

Calculations

• P = 0.5 x rho x A x V²

• A = π(.09 m)²• V = 6.71 m/s• Rho = 1.1 kg/m³• Theoretical P in ≈ .63 Watts• 1.4 v/25x10‾³amps = .0209 W• (.0209 W/.63 W)x 100% ≈ 5.55 % efficient

Problems with Design

• Generating enough power• Losses due to friction• Magnet distance from wire• Finding a stable support for the apparatus• Balancing the magnet to allow a easy spin• Finding a way to support the fan blade

Summary and Conclusions

• Overall we developed good strategy and teamwork

• We found new and interesting methods of design to accomplish the required tasks

• We were successful in harnessing kinetic energy and converting it into electrical power

• Time management and communication