Compressed Air Cars
Posted by: Sebastian on
May 19th, 2007 |
Filed under: Technology
Instapundit is talking about compressed air cars. The big problem with this technology is you’re essentially driving with a bomb under your car. Gasoline contains a lot of energy, but it won’t explode under normal conditions. You’ll get a hell of a blaze, but not an explosion. Any compressed gas technology is going to have the fundamental problem of an explosion hazard, not because of the gas within being explosive, but because of the tremendous amount of energy being stored up in the tank. See this summary of a dive shop explosion that occurred when the tank failed.
Also, the net greenhouse gas savings here would be negligible, since it will take copious amounts of electricity to operate the fill up stations and compressors. This energy, if it comes from burning coal, will just shift the greenhouses gases to the power companies. But still, this technology is more promising than the ones that involve reacting light metals with water to produce hydrogen.

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