Do the Twist!!!

Our Team: Neal Baltuth, Amanda Ollish, Lily Crabtree, and Charlton Pence

Project Design  Cone shaped cups are mounted on 3 horizontal rods connected to a vertical shaft  The shaft goes through a hollow cylinder with copper wire wrapped around the inside of the cylinder  In the middle of this cylinder connected to the shaft are two magnets  Cone shaped cups are mounted on 3 horizontal rods connected to a vertical shaft  The shaft goes through a hollow cylinder with copper wire wrapped around the inside of the cylinder  In the middle of this cylinder connected to the shaft are two magnets

Mechanical Aspects  The cone shaped cups attached to horizontal rods catch the wind energy that in turn spins the vertical shaft creating mechanical energy  The vertical shaft is passed through the cylinder which is held in place by wooden supports to eliminate wasted energy  The cone shaped cups attached to horizontal rods catch the wind energy that in turn spins the vertical shaft creating mechanical energy  The vertical shaft is passed through the cylinder which is held in place by wooden supports to eliminate wasted energy

Electrical Aspects  There are two spinning magnets, whose north- south pole rotation inside a copper coil creates an alternating current.  This current flows through the two wires at the end of the coil to light the LED bulb.  There are two spinning magnets, whose north- south pole rotation inside a copper coil creates an alternating current.  This current flows through the two wires at the end of the coil to light the LED bulb.

Efficiency Calculations  Our theoretical power output is calculated as follows:  P =.5 x rho(air density) x A(rotor area) x V(wind speed) =.2603 W  E(efficiency) = P / [(.5)(rho)(V^3) =.25 or 25% efficient  Our theoretical power output is calculated as follows:  P =.5 x rho(air density) x A(rotor area) x V(wind speed) =.2603 W  E(efficiency) = P / [(.5)(rho)(V^3) =.25 or 25% efficient

Design/Construction Issues  First used regular copper wire coil that didn’t produce much voltage at all, so we got magnetic wire and saw immediate results  We ordered very powerful magnets that got lost in the shipping process, so we just purchased some extra-strength magnets  First used regular copper wire coil that didn’t produce much voltage at all, so we got magnetic wire and saw immediate results  We ordered very powerful magnets that got lost in the shipping process, so we just purchased some extra-strength magnets

Conclusions  The best way to construct something is to make alterations while building it instead of deciding on the perfect design  We had to do a good amount of research concerning generators and how they worked  If your teammates schedules conflict divide up the work  The best way to construct something is to make alterations while building it instead of deciding on the perfect design  We had to do a good amount of research concerning generators and how they worked  If your teammates schedules conflict divide up the work