About: Compressed air tank   Sponge Permalink

An Entity of Type : owl:Thing, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

Several companies claim to have been developing compressed air cars for public use, since about 1990, but none are available yet. Typically the main advantages are claimed to be: no roadside emissions, low cost technology, engine uses food oil for lubrication, and integrated air conditioning. The tanks must be designed to safety standards appropriate for a pressure vessel, such as ISO 11439 . The storage tank may be made of: * carbon-fiber in order to reduce its weight while achieving the necessary strength. * kevlar.

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  • Compressed air tank
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  • Several companies claim to have been developing compressed air cars for public use, since about 1990, but none are available yet. Typically the main advantages are claimed to be: no roadside emissions, low cost technology, engine uses food oil for lubrication, and integrated air conditioning. The tanks must be designed to safety standards appropriate for a pressure vessel, such as ISO 11439 . The storage tank may be made of: * carbon-fiber in order to reduce its weight while achieving the necessary strength. * kevlar.
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abstract
  • Several companies claim to have been developing compressed air cars for public use, since about 1990, but none are available yet. Typically the main advantages are claimed to be: no roadside emissions, low cost technology, engine uses food oil for lubrication, and integrated air conditioning. The tanks must be designed to safety standards appropriate for a pressure vessel, such as ISO 11439 . The storage tank may be made of: * carbon-fiber in order to reduce its weight while achieving the necessary strength. * kevlar. Compressed air is a heavy way of storing fuel, 300l air at 300 bar only amounts to about 12kWh (the equivalent of 1.4 liter (0.37 gallons) of gasoline). During rupture testing, the tank cracks, but does not break up, producing no splinters or fragments. All four major manufacturers who are developing air cars have designed safety features into their containers as opposed to hydrogen's issues of damage and danger involved in high-impact crashes. Air, on its own, is also non-flammable. Though no company has yet demonstrated the effectiveness of an imploding engine (ZAP) vs a quick release (MDI) standard, and other safety designs; it is expected that large-scale production may lead specific governments to set their own standards. It was reported on Discovery's Beyond Tomorrow that on its own carbon-fiber is brittle and splits; but creates no shrapnel. The tanks may be refilled at a service station (using volume transfer), or in a few hours at home or in parking lots plugging the car into the electric grid via an on-board compressor. The cost of driving such car is typically projected to be around €0.75 per 100 km, with a complete refill at the "tank-station" at about US$3.
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