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- Newsgroups: sci.space
- Path: sparky!uunet!spool.mu.edu!agate!rsoft!mindlink!a752
- From: Bruce_Dunn@mindlink.bc.ca (Bruce Dunn)
- Subject: Re: Aluminum as rocket fuel?
- Organization: MIND LINK! - British Columbia, Canada
- Date: Thu, 31 Dec 1992 03:00:52 GMT
- Message-ID: <19043@mindlink.bc.ca>
- Sender: news@deep.rsoft.bc.ca (Usenet)
- Lines: 18
-
- > Nick Janow writes:
- >
- > What are the problems with using molten aluminum sprayed into the reaction
- > area? Keeping the aluminum molten in a vacuum should be relatively easy.
-
-
-
- This I like! Molten aluminum (melting point 660 C) can be kept in
- steel tanks. Using molten aluminum will give a higher Isp than aluminum
- metal. Major problems will be pumping, and how to keep the aluminum from
- freezing in pipes and injectors when the motor is shut off. The idea is not
- as crazy as it sounds. Liquid lithium (melting point 181 C) has already been
- fired in motors (use liquid fluorine as an oxidant, with and without the
- addition of hydrogen to raise the specific impulse).
-
-
- --
- Bruce Dunn Vancouver, Canada Bruce_Dunn@mindlink.bc.ca
-