How to Make a Wind Turbine for a School Project?
The way to reduce the carbon footprint is to use fuel sources that do not involve burning fossil fuels. Wind energy is a good alternative to coal and oil.
Excess carbon dioxide in the atmosphere leads to global warming, and that raises Earth’s temperatures and brings about droughts, floods, and hurricanes.
Wind has the smallest carbon footprint of any energy source. Therefore, using a wind turbine enables you to do your part in protecting our planet.
It’s good for kids to understand wind turbines, and that’s what we will focus on in this article. We will teach you how to make a great wind turbine for a school project.
Difference between Wind Turbine and Windmill
It is necessary that we first establish the difference between a wind turbine and windmill, as some may be unable to distinguish between the two.
A windmill is a structure that takes wind energy and converts it directly into mechanical energy which is subsequently used for tasks such as milling grain or pumping water (typically what windmills are used for on farms).
A wind turbine, on the other hand, takes wind energy and converts it into electricity which is transmitted over power lines, stored in batteries, or for powering electrical equipment.
How a Wind Turbine Works
The parts of a wind turbine are essentially the same as those found in a simple electrical motor. The difference is that functionality is opposite: while the motor uses electrical current to create motion, a wind turbine uses motion to generate electrical current.
The wind turbine features two or three propeller-like blade which are turned by the wind around a rotor which is connected to the main shaft, which in turns causes a generator to spin and create electricity.
Making the Wind Turbine
Things You Will Need
Parts of a Wind Turbine
1. Rotor Blades - They are like the structure’s sails. The wind causes the rotors to move, transferring some of its kinetic energy to them.
2. Shaft – It is connected to the rotor’s center. As the rotor spins, the shaft spins too. As a result, the rotor transfers the mechanical, rotational energy to the shaft – and on the other end is the electrical generator.
3. Generator- The generator comprises magnets and a conductor (usually a coiled wire). On the inside of the generator, the shaft connects to the permanent magnets which surround the coil of wire. The spinning of the rotor causes the shaft to spin, which I turn causes the spinning of the assembly of magnets, and that generates voltage in the coil of wire (that is the conductor).
Types of Wind Turbines
Modern ones fall into two basic classifications.
1. Horizontal-Axis Turbines – They are the most common type of wind turbine and are what many people typically think about when wind turbines are mentioned. They are three-bladed and operated “upwind”, with the turbine pivoted at the tower’s top, ensuring the blades face the wind.
2. Vertical-Axis Turbines – These are omni-directional turbines. That means that for them to operate they do not require any adjustment to make them point into the wind.
By following the simple steps provided here, you can create a wind turbine for a school project all on your own. With this wind turbine, you can start to understand more about kinetic energy and its transformation into electricity.
What you have made is of course just a model for the sake of learning. The ones used to generate anywhere between 100 kilowatts of energy or as much as several megawatts are large structures. Larger wind turbines, when put together in “wind farms” supply bulk power to the electrical grid.