- Mar 19, 2018
I would like to see a flywheel powered bike, a 20" flywheel of mass 300 lbs spinning at 30,000rpm has 140kwh of stored power..... Or since its I=mr^2, you could also do 40" at 75lbs at 30k rpm. Yeah it would be pretty hard to get 30k rpm, but even like 10k rpm would still have juice.LOL you're lost,that's a dry fuel rocket one shot done going where?
That's 5 gallons of gasoline, but with gasoline engine efficency 20%, more like 5 x 5 = 25 gallons.....
If that flywheel were to power a bicycle and all that energy transmitted in like a second, that would be even more powerful than one of these chemical rockets, i think.... It might though tear the thing apart b/c thats a lot of juice, so maybe the rockets arent so bad. just food for thought ya know. I believe back in the day before battery tech was better, one company made a flywheel bus where instead of batteries, the flywheel stored the power....
I would suppose one could take a car battery pack of such and use that to power a motor connected to a giant flywheel. This way it could be reloaded many times, unlike the rocket which only works once, but then again, id suppose a smarter design could make the rockets automatically reload...