[AR] Lox-Methane Monoprop (was Paper bounty (was RE: (mono?)propellants...))
- From: Nels Anderson <nels.anderson@xxxxxxx>
- To: arocket@xxxxxxxxxxxxx
- Date: Sun, 09 Aug 2015 18:16:44 +0100
On 08/03/2015 09:08 PM, Lloyd Droppers wrote:
Thanks Nels, that is an interesting write up. The LOX/LCH4 monoprop is
actually quite a bit more stable than I anticipated, though clearly
something to be worked on remotely if you are feeling ambitious enough
to work on it at all.
That was my take-away too: lox-methane is not as amazingly explosive as
I would have guessed.
Thieme & Every hint in their conclusion that discharge-tube diameter
might have something to do with the explosion that terminated their
tests. O'Hara et al. in Advances in Cryogenic Engineering (1972, ed.
K.D. Timmerhaus, Springer -- Google books may deign to show it to you)
put this to the test. Broadly speaking, they hoped to find a critical
orifice diameter below which a detonation wave would not travel. Such a
thing exists for other explosives, but, alas, apparently not for
lox-methane.
NASA-JSC compiled a literature search on lox-methane monoprops:
http://research.jsc.nasa.gov/BiennialResearchReport/2011/116-2011-Biennial.pdf
but it's not obvious to me how or if one can get a copy.
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- » [AR] Lox-Methane Monoprop (was Paper bounty (was RE: (mono?)propellants...)) - Nels Anderson