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- Path: sparky!uunet!noc.near.net!hri.com!spool.mu.edu!agate!rsoft!mindlink!a752
- From: Bruce_Dunn@mindlink.bc.ca (Bruce Dunn)
- Newsgroups: sci.space
- Subject: Re: Aluminum as Rocket Fuel?
- Message-ID: <19198@mindlink.bc.ca>
- Date: 4 Jan 93 00:27:49 GMT
- Sender: news@deep.rsoft.bc.ca (Usenet)
- Organization: MIND LINK! - British Columbia, Canada
- Lines: 27
-
- > Karl Dishaw writes:
- > >Bruce Dunn writes:
- > >When the
- > >aluminum is melted in the tank, the fuel line, valve, and injector will
- > all
- > >be heated to above the melting point of aluminum.
- >
- > I'd hate to see the performance hit from carrying a heater that
- > powerful. Wouldn't it make more sense to pump the aluminum onto the
- > rocket as a liquid and only have a heater powerful enough to offset
- > cooling?
- >
-
-
- Sorry for the sloppy wording. I meant rather "when there is melted
- aluminum in the tank". I am envisioning a system in which aluminum is
- premelted, possibly in a solar furnace, and poured into an insulated
- tank/valve/combusion chamber unit. The aluminum will bring the whole system
- up to temperature, and melt any residual aluminum from the last firing. I
- expect that it won't be too hard to insulate the assembly well enough to keep
- the temperature above the melting point of aluminum for days. I don't think
- that a heater will be required. If heating is required for long term
- operation, the logical thing would be to admit a small amount of oxygen into
- the fuel tank to react with the aluminim and heat it.
-
- --
- Bruce Dunn Vancouver, Canada Bruce_Dunn@mindlink.bc.ca
-