From: everything-list@googlegroups.com
[mailto:everything-list@googlegroups.com] On Behalf Of John Mikes
Sent: Saturday, November 16, 2013 12:33 PM
To: everything-list@googlegroups.com
Subject: Re: Our Demon-Haunted World
Telmo:
unfortunately I reflected to the NZ solution on another list... - it is a
convoluted - I could say:
inadeqyate - technology, just as the Au version of the surface utilization.
SOME PARTS OF THE WORLD??? let us say: the surface?
Solar woulrd cover immense surfaces just for supplying the energy as needed
TODAY and we
will need a multiple of that soon... See my remark to Russell.
So far NOBODY was interested in my suggestions: ewverybody blows his OWN
pipe.
Geotherm is under our feet - dry lamd or oceans. Pipes are stuck down for
OIL, similar - if a bit
longer for geothermic energy extraction with 2 pipes inserted: ONE for
pumping DOWN the
ultrapure (Si-free) water into a heat-exchanger at ~140+C environment, the
OTHER to ascend
the high pressure steam straight into the turbine. No deposit, as in NZ.
JOhn Mikes
If it were that easy.. Dry rock geothermal requires amongst other things
large amounts of fresh water for hydraulic fracturing of the reservoir. This
process needs to be repeated periodically as the reservoirs reseal up over a
period of years (as is being experienced by the shale oil fracked wells) and
in the case of dry rock geothermal when the heat reservoir becomes drawn
down. The hot steam that comes out of the wells is too laden with minerals
and salts to be used directly and it thus requires a duel loop system in
which the primary loop boils water in a boiler to produce clean steam that
is passed through the generators.
Then there is the matter of earthquakes - including the I believe it was a
5.3 on the Richter scale tremors linked to it in Basel.
Dry rock geothermal certainly does have a big upside potential - there is a
whole lot of heat just a few miles below the ground, but it is not as easy
or simple as you seem to think it is. For example in a lot of dry areas
water supply becomes a gating factor that puts a limit on scalability - this
also applies to Canadian tar sands and shale gas plays - water requirements
will place a limit on how much it can scale; on the maximum annual rates of
extraction that can be achieved.
Chris
On Thu, Nov 14, 2013 at 6:39 PM, LizR <lizj...@gmail.com> wrote:
On 15 November 2013 11:39, John Mikes <jami...@gmail.com> wrote:
Telmo and other 'experts':
why does nobody even mention the geothermic energy app - available in huge
Q-s and so far tapped only in (literalily) 'superficial' usage. The high
pressure ultra-clean steam from a deepened modification of the exhausted oil
wells may provide much much more energy than today's needs, so it could
serve as driving force for more than we think by ongoing technology. (E.g.
potable water, agri-irrigation, when fresh-water becomes scarce - like now -
pollution-free transportation, keeping politicians in asylum, etc.) .
I assume you mean geothermal energy. It is used in New Zealand but doesn't
provide as much energy as wind and hydro as far as I know.
It's an option in some parts of the world, certainly, but I would say solar
is more readily available overall.
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