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- Path: sparky!uunet!ogicse!das-news.harvard.edu!cantaloupe.srv.cs.cmu.edu!crabapple.srv.cs.cmu.edu!0004244402@mcimail.com
- From: 0004244402@mcimail.com (Karl Dishaw)
- Newsgroups: sci.space
- Subject: Aluminum as Rocket Fuel?
- Message-ID: <C0AoxB.91z.1@cs.cmu.edu>
- Date: 3 Jan 93 20:28:44 GMT
- Article-I.D.: cs.C0AoxB.91z.1
- Sender: news+@cs.cmu.edu
- Distribution: sci
- Organization: [via International Space University]
- Lines: 22
- Approved: bboard-news_gateway
- X-Added: Forwarded by Space Digest
- Original-Sender: isu@VACATION.VENARI.CS.CMU.EDU
-
- >george william herbert writes:
- >aluminum is the wrong fuel to use if it's an earth based application.
-
- Most discussion has centered on an Al rocket being used for exporting
- Lunar material, probably as a second stage to a mass driver or laser
- launcher. A mass driver would need a rocket on its payload anyway for
- orbit circularization and course corrections. Aluminum is the most
- energetic of the common lunar materials (runner-ups Si, Ti, Fe, Mg, Ca).
-
- >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?
-
-
- Karl
- sold my soul to Uncle Sam . . . now marked down for resale.
-