mad99 wrote:I know PSA was working on a hybrid version, petrol and air. The air was compressed by braking and used to assist acceleration but I think the project was stopped.
Once the air is compressed it needs to be kept hot otherwise you lose energy.
Aesma wrote:I don't see why you'd need the heat, the system uses hydraulic pumps, heat serves no purpose.
Redd wrote:If there was filling stations around the city, really just a compressor, it could make the concept very viable, and it's probably the greenest solution to daily transport in the city.
WIederling wrote:Aesma wrote:I don't see why you'd need the heat, the system uses hydraulic pumps, heat serves no purpose.
You go from adiabatic compression( and later adiabatic expansion) ( theoretically loss less )
to isothermic compression while loosing the energy difference -> lossy.
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