geothermal energy :: essays research papers

GEOTHERMAL ENERGYGeothermal energy is one of the oldest sources of energy. It is exclusively using and reusing (reusable energy) alter from the inside of the earth. Most of the geothermal energy set outs from magma, liquified or partially molten rock. Which is why nigh geothermal resources come from regions where there be active volcanoes. Hot springs, geysers, pools of boiling mud, and fumaroles are the most easily exploited sources. The ancient Romans used hot springs to heat baths and homes, and exchangeable uses are still found in Iceland, Turkey, and Japan. The true source of geothermal energy is believed to come from radioactive decay occurring deep within the earth. electricity is one of the biggest outputs of geothermal energy. It was first recorded to produce electricity in 1904 in Italy. There are now geothermal power plants in operation in New Zealand, Japan, Iceland, the US and elsewhere. For the generation of electricity, hot pee, at temperatures ranging from ab out 700 degrees F, is brought from the underground reservoir to the surface through production wells, and is flashed to steamer in special vessels by release of pressure. The steam is separated from the unruffled and fed to a turbine engine, which turns a generator. In turn, the generator produces electricity. Spent geothermal fluid is injected guts into peripheral parts of the reservoir to help keep open reservoir pressure. If the reservoir is to be used for direct-heat application, the geothermal water is ordinarily fed to a heat exchanger before macrocosm injected back into the earth. Heated domestic water from the output side of the heat exchanger is used for home heating, greenhouse heating, vegetable drying and a broad(a) mixed bag of other uses. Hot water and steam exist at umteen subsurface locations in the western U.S.These resources can be classified as low temperature (less than 194 degrees F), moderate temperature (194 302 degrees F), and also high temperature (greater than 302 degrees F). The uses to which these resources are applied are also influenced by temperature. If the reservoir is to be used for direct-heat application, the geothermal water is usually fed to a heat exchanger before being injected back into the earth. Heated domestic water from the output side of the heat exchanger is used for home heating, greenhouse heating, vegetable drying and a wide variety of other uses. Hot water and steam exist at many subsurface locations in the western U.