Re: Energy from a deep hole
- From: Gary Reichlinger <reichln@xxxxxxxxx>
- Date: Wed, 09 Aug 2006 09:23:56 -0500
On 8 Aug 2006 21:29:29 -0700, "eromlignod" <eromlignod@xxxxxxx> wrote:
It seems to me that if we could dig a hole deep enough to reach a point
in the earth's crust where the temperature is sufficient, that we could
drop in a boiler and have an almost unlimited supply of steam to
convert to other forms of energy.
The supply of steam would have a limit imposed by the thermal
conductivity of the rock. Most geothermal efforts require actually
pumping hot liquids to the surface. You then need to dispose of the
brine water just like you must do with oil production. The amount of
thermal energy that can be stored in hot water is drastically less
than the energy in an equivalent volume of oil or gas. This makes
pumping cost (and disposal cost) a big issue. There are probably a
few locations where the process could be economic, but it is not a
huge source of energy.
.
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