stargazergurl22 asked:


If we drill a hole several miles deep and inject water (anywhere in the world), we can extract almost unlimited geothermal energy.

So why are we not developing this energy source more?

I’m sure drilling a hole miles deep is darn expensive, but here’s my questions;

(1) Specifically, what needs to be improved in the drilling technology?

(2) I understand (thank you, eiscubes) that ground water precipitates muck up the heat exchanger, but that just does’nt sound like a show-stopper; just design a big, inefficient (but easy to clean) heat exchanger, right?

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Rolo asked:


Geothermal energy is energy that exists in nature as a result of heat from the Earth’s core. The most common utilization of geothermal energy is through hydrothermal means. Hydrothermal energy is energy derived from heated water. Water that is heated by the Earth can be used directly to supply heat to human homes.

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tracy_baker47246 asked:


How does Geothermal Energy Power and Heat a House…….Please Help.

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B U S Y asked:


I have geothermal heating and cooling. Now, when we bought the house they told us the best thing to do is leave the a/c on auto, keep windows doors closed and leave the temperature alone. When you adjust it and turn it on and off, you are making it work harder to get back up or down to the right temp. SO this is what Ive been doing. Seems to work well, keeps costs low. Do you agree or should I try opening the windows on cooler days?

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sunflowers asked:


a. ice
b. water
c. talus
d. wind

2. The energy source that depends on Earth’s internal heat is
a. water power
b. geothermal energy
c. fossil fules
d. uranium

ADHD

Stephanie M asked:


okay i know these definitions, but i want to know if you can give me anyother definition for these words(please if you could):

1. anthracite- hardest form of rock.
2. bituminous coal- soft coal.
3. carbonization- process in ehich plants materials are changed into carbon.
4.crude oil- unrefined petroleum.
5.fossil fuel- fromed from the remains of living organisms, such as coal, petroleum, and natural gas.
6. gemstone-nonmetallic mineral that is brilliant and colorful when cut
7. geothermal energy energy contained in and available from water heated by magma or gases within the earth.
8.hydrocarbon- compound made up of atoms of carbon and hydrogen.
9.hydroelectric energy- energy produced by running water.
10. lignite-brown coal
11, lode- deposit formed by thick mineral veins.
12. nuclear fission- splitting of the nucleus of a large atom into smaller nuclei.
13. nuclear fusion- combination of the nuclei of small atoms to form a larger nucleus.

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Evil D asked:


I was recently watching the Discovery channel and if you go down some were em between 2 and 5 miles in the earth it start to get hot due to geothermal heat. In Russia they have drilled as far as 7 miles and there are salt mines in the U.S that have gone as far as 2 miles, they would be deepper but its to hot. Why not drill far enough down to insert or blow out a cavity to retain water and use the geothermal power to boil it and pip the steam back to a steam turbine giving us free power..

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athorgarak asked:


I can’t help but think that there are more ways of generating electric power than what we currently do.

What about tide wve generators? I know that the tides are hugely strong and you cannot reist their power, so why hasn’t there been power stationes built upon craggy, rocky coastal areas of earth?

How about the geothermal vents on the ocean floor, fast flowing HOT water to power turbines?
deep and not so deep ocean currents?
volcanic heat exchanger, thermocouple electricity?
antarctic 300 mph wind electricity farms? Mountain top fast wind farms?

Has anyone theoretically figured out how to handle and capture the giga watt energies of lightning?
Could lightning strikes be attracted sufficiently and used to charge mountainous battery arrays?

I just wonder if these things could be done to free us from oil dependence.

Opinions and thoughts?

ADHD

ny_spinner_dan asked:


I am making a slideshow on Geothermal Energy, and have this following text on a slide: Geothermal Energy is a renewable source of energy that is generated by heat stored beneath the Earth’s surface or collected from the absorbed heat in the atmosphere and oceans.
On that slide I have a diagram of energy being collected from under hot rock(corresponding to the first part of the above sentence), but I need help finding something for the second part.
Can you please send me images?
Thanks.
Suggestions for anything in conserning my presentation are also welcome.

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Mike P asked:


If a subdivision, i.e. 400 homes, were to use geothermal technology, both for heating and cooling, assuming 45 degrees north in the midwest United States, and assuming a substantial aquafer exists, (note, solar heating, and cooling, using Stirling technology), how much will the ground water change temperature…(not a trick question……seriously)… if 1 person does it, it’s a good idea…..if everyone does it, is it still a good idea?
Note, assume 50-65 degree F ground water temperature.

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