Or really, how powerful could they get?
2007-11-25 08:48:39 · 2 answers · asked by Anonymous in Environment ➔ Alternative Fuel Vehicles
Much reading available through
http://www.dmoz.org/Science/Technology/Energy/Devices/Fuel_Cells/
Measuring power as energy per mass, it must be pretty good, because they used it for space missions, where mass costs a *LOT* of money.
The other way to measure power would be energy per space. Hydrogen takes up lots of space for what it weighs, so may not be *as* good on this measure.
2007-11-27 07:23:56 · answer #1 · answered by A Guy 7 · 0⤊ 0⤋
That question doesn't make much sense. What do you mean by powerful? A hydrogen fuel cell is basically a battery that you "recharge" by replacing the hydrogen (refilling it). It produces electrical power, so there isn't really a limit on how much electrical power one could produce other than how much hydrogen can be carried.
2007-11-25 08:58:03 · answer #2 · answered by theseeker4 5 · 1⤊ 0⤋