Another compressed-air application is a vehicle being built in South Africa
that runs on compressed air (a hybrid is also in the works) at an estimated
cost of 1 cent/km:

   <http://allafrica.com/stories/200010260404.html>
or
   <http://www.howstuffworks.com/air-car.htm>
or
   <http://www.globalstewards.org/aircar.htm>


Patrick Murphy
James Valley Colony

Russell McMahon wrote:
>
> Well, more or less EE
> Yee ha !
>
> __________________________________
>
> Dean Wheelr said -
>
> A recent blurb in my most recent issue of Chemical Engineering Progress (I
> can think of other uses for all that compressed air in the mine!):
>
> Researchers at Sandia National Laboratories
> (Albuquerque, NM) are working with
> Haddington Ventures (Houston, TX) and its
> subsidiary Norton Energy Storage LLC to
> determine the feasibility of using a 2,200-ft-deep
> inactive mine near Norton, OH, as the
> storage vessel for a compressed-air energy-storage
> power plant. "The intent is to cycle air
> pressure into the mine using compressors dur-ing
> off-peak electrical power times like
> evenings and weekends to increase air pressure
> in the mine," explains Sandia researcher Steve
> Bauer. "When electricity demand peaks during
> the day, air pressure will be bled off through
> modified combustion turbines to generate elec-tricity.
> The energy is stored as pressure, but the
> mine must hold air to store the pressure."
> Working pressures in the mine will range
> between about 800 and 1,600 psi.
> Haddington and Norton Energy plan to
> have the plant operating in two years. It will be
> brought on-line in increments of 300 MW as
> units are complete. Utlimately up to 2,700
> MW will be built, which will be enough gener-ating
> capacity for about one million homes, the
> firm points out.
> Two other compressed-air energy-storage
> plants exist - one in McIntosh, AL, and
> anothert in Germany, both in caverns created
> in salt deposits. The Norton plant will be the
> first in a limestone mine, the company says.
>
> from http://www.cepmagazine.org/pdf/080118.pdf
>
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