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Transcript of Geothermal Energy
Generators then convert the hot product into electricity
In the Earth's soil there is a point that maintains 12 degrees Celsius
Geothermal heat pumps tap into this resource to cool buildings, by using pipes buried in the ground near buildings. Geothermal energy has been used
to generate electricity, and to provide
heat for homes and industries. First geothermal power station built
at Landrello, in Italy
Second built at Wairekei in New Zealand
Others are in Iceland, Japan, the Philippines
and the United States Low emission levels
Can be used instead of furnaces and air conditioners
Renewable energy source
Replaces fossil fuels during production of electricity
Available all 365 days in a year Not many places where you can build geothermal power stations
Sometimes a geothermal site may "run out of steam" for decades
Hazardous gases and minerals may come up from underground (can be difficult to safely dispose of) What is Geothermal Energy? Geothermal energy is heat that occurs naturally in the Earth. By: Julia Benrubi In Winter... Heat pumps remove heat from a heat exchanger and pump it into the indoor air delivery system. In Summer... Heat pumps move heat from indoor air into the heat exchanger. Cost The initial cost for the field and power plant is around $2500 per installed kW. Environmental Problems Release of hydrogen sulfide (a gas that smells like rotten egg)
Disposal of some geothermal fluids, which may contain toxic materials
Specific locations may cool down Interesting Facts! :) Hot water used as an energy source since ancient times (for bathing, cooking etc.) Word 'geothermal' comes from Greek word geo (earth) and thermos (heat) World's first geothermal power plant was costructed in 1904 in Italy and is still used to generate power there today Most famous geothermal system is in Yellowstone National Park in USA, and about 250 geysers erupt there every year Heat used for geothermal energy is stored 4000 miles within Earth's core and temperatures reach 5000 degrees Celsius Some stores are built with geothermal technology Bibliography! http://www.ucsusa.org/clean_energy/our-energy-choices/renewable-energy/how-geothermal-energy-works.html
http://www.darvill.clara.net/altenerg/geothermal.htm Thanks For Watching!! Here is a video!