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Old 05-16-2014, 02:00 PM   #16 (permalink)
oil pan 4
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Quote:
Originally Posted by Old Tele man View Post
Q: If the oil companies can DRILL 5-10 miles down into the earth for oil, *WHY* can't they do the same for geothermal sources?
Because in a classic boiler design you need 10 to 12 square feet of heat exchanger surface area per horsepower you wish to create with the turbine.
Down 10,000 feet its only like 150'f.
So you have low surface area and low differential temperature.
Unless you plan on hydraulically fracturing around a volcano.
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