Quote:
Originally Posted by Solar
I would love to run my car off of compressed air, what kind of mpg would i get with a 2200lb car?
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From what I've read it seems like it only takes twice as much electricity to power a compressed air car then it does to power a battery electric car, the energy to compress air to 12,000psi so that the tank will fit in the car takes a lot of energy, you of course also get unlimited A/C and in the winter time free cryogenic freezing because compressed air engines get cold as they take the energy out of the compressed air, 60 to 80 degree drop in temp at the tail pipe, leading to a nice brittle engine that requires special lubrication.
But just a rough guess, an electric car like the Nissan Leaf is about 320watt hours per mile, compressed air in that same car I would guess would be about 600 watt hours per mile and hydrogen would be 1kwh per mile.