What is a geothermal power plant?
Geothermal power plant is used to produce electricity by heat, which naturally occurs under the surface of the Earth. These plants have existed since the beginning of the 20th century and can be built in any area that has access to a geothermal tank. Most of them are located along the boundaries of tectonic plates. There are three ways to be used to transform heat from the ground to energy and all of them include the use of steam turbines.
In 1904, the first geothermal power plant was built in Tuscany, Italy. At this point, the steam has already erupted the Earth's peel, which facilitated the use and transformation of this energy into electricity. Previously, energy from geothermal tanks was used as a source of heat, even if it was not stored for later use.
The most common type of geothermal power plant is the one that draws a hot water tank and then converts it into a steam that withE is used to move the turbine. This type of plant is called a flash steam plant. As soon as the steam cools down and turns back to the liquid water, they usually return to a system that is heated on the ground. In most cases, it is necessary to drill to 1 to 2 miles (1.6 and 3.2 km) below the surface to achieve a water supply under sufficient pressure to run this type of plant.
Another common type of geothermal power plant uses a steam that is captured to move the turbine when the Earth's crust escapes. These plants, which are called dry steam plants, do not require drilling, because steam, often in the form of geysers, naturally explode. Binary cycle power plants can also be used as geothermal power plants. In these plants, hot water from below the ground is used to transform another fluid into steam.
In most cases, there is a very small pollution created by the geothermal power plant. The main by -product of most of them is water that is often captured and recycledlifted for later use. Dirt and other chemicals found in the water below the Earth's surface can be captured before the water is released into the environment to reduce the amount of pollution that causes the plant. These plants often emit less than 5% pollution that plants that burn fossil fuels make.