Wind Energy Machines

The understanding of wind energy takes knowledge of wind energy, machines and the components they are designed with.

Wind energy machines are used to move objects over land and water, pump fluids, and even generate electricity. Since wind machines do not depend on anything but the wind, they are alternative energy devices and considered a renewable energy resource.

These alternative energy devices can be used on a large scale or small scale in the conversion of wind energy to mechanical or electrical energy. Homeowners anywhere can implement the use of wind energy machines as a form of alternative home energy to lower utility bills and stop depending on energy from fossil fuels.

Finally, utilizing wind energy as an alternative energy source is environmentally friendly because it greatly reduces carbon emissions and other pollutants. Moreover, incorporating alternative energy helps us to reduce our dependence on foreign oil.

The simplest and most common wind energy machine is the sail. A sail is considered to be any surface that captures wind and converts energy into mechanical energy or thrust. The normal use of a sail is produce movement of an object.

When people think of sails, they generally think of moving boats on water, but there are many different uses for sails both on and off water. Sails may seem simple, but they consist of many parts and incorporate many different types of materials, which is why they fit the description of a wind energy machine.

The next most common wind energy machine is the windmill. The windmill is a wind energy device that converts wind energy into rotational energy to drive a shaft. The most common uses of windmills are to grind grain and pump fluids.

The wind hits the blades of the windmill causing them to turn. As they turn, it drives a set of gears that spin the main shaft. As the shaft spins it can be hooked up to grinding stones to grind grain into flour, or it can be hooked up to a pump in order to pump fluids.

The pumps attached to windmills are usually hooked up to a well in order to provide potable water to households. In many areas where the wind is sporadic, water is pumped from a well into a holding tank suspended above the ground. This ensures constant water pressure.

Due to developments in modern technology, wind turbines are now becoming a great alternative energy source. Whether large or small scale, wind turbines are advanced wind energy devices that convert wind energy into electricity. The amount of electricity produces is based on turbine design and how much consistent wind power is available.

The simplest wind-energy turbines consist of rotor blades, a shaft, and a generator. The rotor blades act much like the sails mentioned above. The wind blows against these rotor blades and causes them turn which converts wind energy into mechanical movement.

The rotor blades are hooked to the shaft through gears, which cause it to spin in the same direction as the blades are rotating. This circular rotation is applied directly to a nacelle. The nacelle is the casing that holds the generator and all of the electrical parts. Through the angular motion of the rotor in the generator, electromagnetic induction causes electrical current to induce in the motor and generates electricity.

Wind turbines can be used on a large or small scale. Small-scale use is for residential and farm areas. Usually this consists of only one or two wind turbines and provides homeowners with a great source of alternative electrical energy.

Large-scale use requires multiple wind turbines usually in a field setting. The wind turbines are hooked up cumulatively to produce more power and a steadier output. The only reason wind turbines are not used in more areas is due to the aesthetic value. Most people consider a field of wind turbines to be very ugly. However, if considering the alternative is a polluting coal or natural gas plant, the aesthetic value of the wind turbines are much higher.

No matter which wind energy machine a person chooses to use, they are all environmentally friendly and produce free energy. Wind energy is not only free, but also abundant.

Capturing wind energy and converting it for electricity, grinding power, pumping power, or movement is becoming a requirement with the high cost of fossil fuel generated energy. Every homeowner should consider tapping into this alternative energy source.