4 ms·
Interesting discussion. Though it doesn't refute my issue with rocket efficiency when combined with a rotating lever shaft. A kg of propellant will could yield
by ohiovr 6y ago
Interesting discussion. Though it doesn't refute my issue with rocket efficiency when combined with a rotating lever shaft. A kg of propellant will could yield 4.5MJ of reactionary thrust. And outright burning a kg of propellant releases 14.5 MJ of thermal energy.
The supersonic expansion nozzles are important for any aeolpile I would figure though I've not seen it discussed yet till now.
- jjk166 6y agoYou can't measure thrust in MJ. With perfect efficiency your rocket could produce 5385 N.s of impulse. There is no meaningful comparison between this and thermal energy. You most certainly can use rockets on levers to turn a shaft and power a generator, it's just impractical and less efficient than the alternatives in most cases. Turbines work on the same principle but can have efficiencies in excess of 90%, far superior to a rocket, and with far simpler construction. That said, there have been proposals to power rotorcraft like helicopters with blade-tip rocket engines. By this point though you are getting very far away from the Aeolipile, which was an ancient steam turbine.
- ohiovr 6y agoTurbines rarely if ever reach 90% efficiency. 60% efficiency is stellar. Which is why I'm considering using rockets for spinning a shaft.