What is the best chemical rocket fuel from a purely specific …
2022年8月9日 · Metastable metallic hydrogen would be a very light-weight, low volume, powerful rocket propellant. One of the characteristics of a propellant is its specific impulse, Isp. Liquid …
engines - Can hydrogen peroxide and propane be a good rocket …
2023年10月24日 · As with methane, autogenous pressurization should be possible, but the weight of the remaining gas would be a bit high; this is not an option with RP-1. For some reason it is …
launch - Why are hydrogen-fluorine fuels not used for rockets …
2017年3月9日 · Burning that produces about 730 tons of water, the happy chemical we all love. Burning about 730 tons of hydrogen and fluorine produces about 730 tons of very hot …
How does an Electric Solid Propellant rocket work?
2016年7月1日 · The Electric Solid Propellant (ESP) does away with the ion engine part, but instead uses an almost combustible (just barely self-extinguishing) propellant which …
Use of carbon monoxide as propellant on Mars
The CO-based rocket may appear preferable to the LOX/CH4 if the added propellant mass ends up being less than the equivalent system mass needed for water-ice ISRU extraction and …
storage - How are solid rocket propellants stored? - Space …
2024年7月21日 · Unlike Liquid Propellants, solid propellants are already mixed with each other. I've always wondered, does that propellant ever go "bad"? and if it does, how do …
Why did it take so long for methane to be used as a rocket …
2015年10月1日 · SpaceX have put methane on the map as a rocket fuel, but they weren't the first to consider its use. The first experiments in building a rocket engine that uses methane date …
Ultimate fate of rocket propellant in space?
2022年3月28日 · Suppose that by some chance, several billion molecules of rocket exhaust inelastically collide and bind with one another. The resulting picogram dust particle now has a …
What limits the speed at which rocket fuel is expelled?
2018年5月10日 · At what speed is propellant expelled in a normal rocket? A very widely used metric called specific impulse addresses exactly this issue. Chemical rockets (presumably …
How feasible is it to use aluminum and liquid oxygen as future ...
2014年11月15日 · The propellant tank was surrounded by a liquid nitrogen bath to keep the LOX from boiling off. The propellant feed lines ran through a liquid nitrogen bath on their way to the …