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| Not really. I'm talking about available energy density from a fuel determines how much work it can do. Efficiency is an entirely different thing. Fuel cells are very efficient but much more expensive than an internal combustion engine. The deal with running ethanol in a fuel cell is that there is still CO2 created in the process of making hydrogen (which the fuel cell uses). I don't think it's a problem, but some folks are so that makes it "true".
Ultimately, the vehicle's range will be determined by how much energy it can carry with it. Efficiency extends the fuel and thus range so maybe the ethanol fuel cell powered vehicle ends up close to a tank of gasoline in a ice powered vehicle? | |
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Could ethanol be the answer for fuel cell tech?
