Except for the scuba-diving tank on your back......it's probably very little added weight to haul around...
The compressed air tank, which is made of carbon fiber and was originally designed for paintball guns, fits into the bike’s water bottle holder.EldRick said:Except for the scuba-diving tank on your back......it's probably very little added weight to haul around...
:lol:
...and will bring you as far as a paint ball firing range if you expect any performance of it.Ykick said:The compressed air tank, which is made of carbon fiber and was originally designed for paintball guns, fits into the bike’s water bottle holder.EldRick said:Except for the scuba-diving tank on your back......it's probably very little added weight to haul around...
:lol:
liveforphysics said:I did some searching on paintball tanks, looks like 90in^3 (1.47L) is the largest volume I could find.
At 4,500psi, that tank is packing ~228kJ of energy, or 228,000watt-seconds of energy.
In watt hours, that's just 63Wh.
Roughly the same energy in a standard 6-cell laptop battery, or a bit less energy than 6 of my cell phone battery holds.
pdf said:liveforphysics said:I did some searching on paintball tanks, looks like 90in^3 (1.47L) is the largest volume I could find.
At 4,500psi, that tank is packing ~228kJ of energy, or 228,000watt-seconds of energy.
In watt hours, that's just 63Wh.
Roughly the same energy in a standard 6-cell laptop battery, or a bit less energy than 6 of my cell phone battery holds.
And you will never get near that much energy out of it, that is the best case scenario, isothermal. When you start expanding air from 4500 psi to 14.7 psi, it is going to cool way down. I don't know what the efficiency is but maybe half that? Depends on rate of energy extraction. So strap on 10 of those 1.4 liter tanks to get to the store and back and then let's talk fugly. My opinion? It will never see the light of day. Ask him how much that carbon fiber tank costs; about as much as a battery with 8 times the capacity.