Geothermal energy is made by the heat of Earth’s molten interior. This energy is harnessed to produce electrical energy when steam (or hot water which is later converted to steam) from deep underground is applied to drive a turbine on an electric power generator. Moderate to low temperature geothermal sources are also applied to heat buildings straight and to supply space heating through district heating systems.
Where does the geothermal knowledge in Iceland come from? To answer this query, it is necessary to appear at the lengthy history of energy utilization in Iceland. In 2008, the nation celebrated one hundred years of geothermal district heating. This extended tradition of geothermal utilization for heating and later for electricity production that began in 1969 and has been continuous until currently has helped Icelandic geologists, engineers and geothermal utilities to obtain important know-how and knowledge in the geothermal power sector through trial and error.
Heat from the ground is absorbed at low temperatures into a fluid inside a loop of pipe (a ground loop) buried underground. The fluid then passes by way of a compressor that raises it to a greater temperature, which can then heat water for the heating and hot water circuits (showers) of the residence. The cooled ground-loop fluid passes back into the ground exactly where it absorbs additional energy from the ground in a continuous process as long as heating is necessary.
The problems of nuclear energy as a future energy supply are nicely know, nuclear fallout from meltdowns, nuclear waste that takes thousands of years to dissipate, radiation pollution and so forth. In spite of this nuclear energy is a clean energy supply, compared to fossil fuels. And as it is utilised extensively in various nations across the globe the use of nuclear power may increase as fossil fuels become harder to get.
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