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Showing results for tags 'nitrogen'.
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They are doing it because a big cost reduction, for the same 10.000 liters bottle, helium cost 1450 $ and nitrogen cost 22 $. It looks like they will "only" use it in tests https://copenhagensuborbitals.com/helium-versus-nitrogen/ -
I would like to start a discussion about Nitrogen on the Moon, and by extension on the Kerbalized version, the Mun The problem is Nitrogen is very rare or hard to acquire on the Moon. It is a relevant problem because Nitrogen is essential if you want to manufacture any Hypergolic Rocket fuel, oxidizer or monopropellant . There ain’t no easy accessible nitrogen deposits on the moon. Nitrogen is part of the Solar Wind deposited in the top soil but only in few part per million. Our only realistic hope of finding significant amount of Nitrogen is in encapsulated in Pyroxene and Olivine deposits that have not been liquefied near the surface (and lost their gas content). But these can only be found deep in the mantle which means they are hard to access. A 5 meter drill is certainly not going to find any significant amount of Nitrogen rock Ore. Therefore my conclusion is the stock IRSU system which requires nitrogen to manufacture LiquidFuel, Oxidiser and Monopropelant is highly unfeasible.
