Windmill project

The purpose and aim of this project is to learn about renewable energies and how they compare to conventional sources of energy as well as investigating if they are interchangeable with those other sources. This project is educational and demonstrates key ideas about renewable and nonrenewable energies but it also shows the larger picture about our world and how these different types of energy sources affect it. My group, Andrea, Marta and I, started with a general sketch of what we were planning on making and pretty much stuck with, building almost an exact copy of it. We chose to put 4 blades instead of the conventional 3 blades because the wheel had 8 holes and it would be uneven looking if we had 3. We chose the shape of the blades because we looked on the internet and saw that the regular windmills were that shape and if the ones that the government put up and were designed by engineers to be very efficient, we should probably trust the engineers. Here is a picture of the prototype:

The clean energy that we use to power our home, electronics and ultimately our lives comes partly from wind power. The process and the sequence of events of wind being turned into electricity is recreated and documented in this experiment. First, the moving air from the fan, which is kinetic energy, hit against the blades of the windmill and the energy transfers into the blades moving, which is also kinetic energy. The blades moving means the centerpiece that is connected to the metal piece sticking out is moving as well. The metal piece is connected to some wires which turn between a pair of magnets. These magnets create a flow of electricity, which is still kinetic energy, by ripping electrons from their place on the atoms of the wire and causing them to bounce to the next atom which causes the next electrons to move to the next one and so on. This flow of electricity is then directed by the wires to the metal prongs coming out of the back of the motor. These prongs have metal clamps with more wires attached to them clipped onto them. These other wires then direct the flow into the voltage reader and the voltage is measured. If the flow of electricity was directed into a battery instead of the reader, the energy would be transformed from electrical energy into chemical potential energy. Even though this process of energy transformation is for a small windmill, it is the same concepts as a full size one.

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