Geothermal Sources Gain Popularity »
Posted By engineer 3 weeks, 2 days ago in Science & TechnologyIn thousands of homes and buildings across the US, geothermal heat pumps use the relatively constant temperatures of underground water to heat and cool buildings cleanly and inexpensively. The most common way of capturing the energy from geothermal sources is to tap into naturally occurring “hydrothermal convection” systems where cooler water seeps into the Earth’s crust, heats, and then rises to the surface. When the heated water reaches the surface, it is a relatively simple matter to capture the steam it releases and use it to drive electric generators. In addition to scavenging the steam from natural orifices in rock, geothermal power plants drill their own holes to capture it more effectively.
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engineer
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My background is Biomedical engineering with an MBA As you know from all my comments where I almost stand politically. I have loads of ...
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chevydog3 weeks, 1 day ago
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Nice technology. We are also starting to see around here ground source heat pump heating. Glycol/water mixture gets circulated though a large heat exchanger buried 3 feet or deeper in the ground; the heat pump then uses this as a source of low-grade heat.
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I know the article didn't mention "no environmental impact" But taking heat from the earth has none? Maybe not in degree; but in principle this is saying exactly the same thing that drill & burn is saying--" Only this little bit won't hurt."
To live is to affect the Eath and its "natural" state. You don't want to affect the Earth, then don't live.
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