Question

Explain,how geothermal energy is used to generate electricity.

Answer 1

when the lake or river boil with the help of inner magma this turns water into water vapour and it used in rotating the turbine which connected with generator this production of electricity is known as geothermal electricity

Answer 2

answer1))))Water or working fluid is heated (or used directly incase of geothermal dry steam power plants), and then sent through a steam turbine where the thermal energy (heat) is converted to electricity with a generator through a phenomenon called electromagnetic induction.




answer))))))))There are several different main types of geothermal plants:

Dry steam

Flash steam

Binary cycle

What these types of geothermal power plants all have in common is that they use steam turbines to generate electricity. This approach is very similar to other thermal power plants using other sources of energy than geothermal.

Water or working fluid is heated (or used directly incase of geothermal dry steam power plants), and then sent through a steam turbine where the thermal energy (heat) is converted to electricity with a generator through a phenomenon called electromagnetic induction. The next step in the cycle is cooling the fluid and sending it back to the heat source.

Water that has been seeping into the underground over time has gained heat energy from the geothermal reservoirs. There no need for additional heating, as you would expect with other thermal power plants. Heating boilers are not present in geothermal steam power plants and no heating fuel is used.

Production wells (red on the illustrations) are used to lead hot water/steam from the reservoirs and into the power plant.

Rock catchers are in place to make sure that only hot fluids is sent to the turbine. Rocks can cause great damage to steam turbines.

Injection wells (blue on the illustrations) ensure that the water that is drawn up from the production wells returns to the geothermal reservoir where it regains the thermal energy (heat) that we have used to generate electricity.

Depending on the state of the water (liquid or vapor) and its temperature, different types of power plants are used for different geothermal reservoirs.Most geothermal power plants extract water, in its vapor or liquid form, from the reservoirs somewhere in the temperature-range 100-320°C (220-600°F).