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Powering a Car with Liquid Air - Peter Dearman (yt.artemislena.eu)

submitted 2 years ago by Five@slrpnk.net to c/technology@slrpnk.net

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[–] SomeoneSomewhere@lemmy.nz 2 points 2 years ago (1 children)

The issue is always energy density and round-trip efficiency, and I don't see numbers for either of these. Remember that you do have to actually liquify the air first, and that takes power.

[–] Five@slrpnk.net 1 points 2 years ago

Yes, no-one is claiming this car runs on free energy. The advantages are a light-weight mobile energy source and zero-emissions. The expansion ratio IIFC is like 80% that of gasoline, which isn't terrible. Condensing air is a process that is energy intensive, but does not require non-renewable energy to perform.