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- Newsgroups: sci.space
- Path: sparky!uunet!spool.mu.edu!torn!utzoo!henry
- From: henry@zoo.toronto.edu (Henry Spencer)
- Subject: Re: Aluminum as rocket fuel?
- Message-ID: <C05Bt1.900@zoo.toronto.edu>
- Date: Thu, 31 Dec 1992 22:58:12 GMT
- References: <19070@mindlink.bc.ca>
- Organization: U of Toronto Zoology
- Lines: 17
-
- In article <19070@mindlink.bc.ca> Bruce_Dunn@mindlink.bc.ca (Bruce Dunn) writes:
- >... have the molten aluminum stored in a spherical steel
- >tank pressurized by injecting liquid nitrogen into the tank (which because of
- >the heat will immediately vaporize). Is nitrogen available from the moon?
-
- There's no significant amount of nitrogen on the Moon unless there are
- frozen polar volatiles. You can recover a very little bit from the
- regolith, if you're willing to process a lot of regolith.
-
- A note of caution: you're assuming that nitrogen is an inert gas. This
- isn't necessarily true when hot metals are involved. I'm not sure about
- aluminum, but I know titanium will burn fiercely in nitrogen (in fact,
- the ash from titanium burning in air is about 80% titanium nitride).
- Without an ignition source, the combination might be stable enough.
- --
- "God willing... we shall return." | Henry Spencer @ U of Toronto Zoology
- -Gene Cernan, the Moon, Dec 1972 | henry@zoo.toronto.edu utzoo!henry
-