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Originally Posted by veinard
Hi,
thanks a lot for these very frank information many people might be interested in ... frankly spoken the only doubt, concern I still have, how this stuff of air storage vessel should work as a suitable mean to "store" energy ... but ok, I am not expert enough in order to give myself a reasonable judgment. Any further clarification regarding that point would surely help many other readers of that thread as well. Is this possible ?! And still my question, whether such a suggested system might also suitable for a SME's energy needs ?!
Benny
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An air storage vessel is a tank filled with compressed air, just like a propane
tank is filled with compressed propane. Of course, the size of this vessel is
propably 300 times bigger than a propane tank and approx 10 times more
in pressure. Usually a propane tank is pressurized about 150 psi where the
air vessel pressure is elevated to 1550 psi.
This high pressure allows for high volume of compressed air to be stored.
Air motors use compressed air to run at approx 90 psi. An example of an air motor is the air gun used by car mechanics to remove the wheels of a car.
A similar air motor (but bigger) will, when coupled, turn a generator motor
at 1800 RPM to produce electricity. A couple of clarifications;
a. RPM means rotations per minute
b. psi means pounds per square inch
Surerly, a larger air vessel can provide power for SME's. Example.
Since 1971 in Germany, An old coal mine is used to store a VAST amount
of compressed airto be used at high peak hours to satisfy high demand
of electricity. Its a great idea. The americans are now following suit.
A similar project is underway somewhere in Ohio. In case of a black-out this
facility can run the state of Ohio for several hours.
Hope to answer your questions...regards Georgios.
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