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Old 05-16-2014, 02:00 PM   #16 (permalink)
oil pan 4
EV convert
 
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Location: NewMexico (USA)
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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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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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