[AR] Re: "Direct" Hydrogen Peroxide engines
- From: Henry Spencer <hspencer@xxxxxxxxxxxxx>
- To: arocket@xxxxxxxxxxxxx
- Date: Fri, 16 Sep 2016 16:54:28 -0400 (EDT)
On Fri, 16 Sep 2016, Paul Breed wrote:
Now suppose that you build the cat pack as a hollow spool.... The
Catpack material is rectangular (no waste) and is wound around the
spool...
Interesting thought. Easier to get flow area, harder to get lots of flow
depth -- you'd probably want to choose a finer screen (or whatever) to
reduce the number of layers needed for complete catalysis.
Now getting the gas turned around and going in the Correct direction may
be hard...
Probably not, actually -- it won't be moving all that fast as it leaves
the catpack, with most of the energy still (so to speak) thermal rather
than bulk kinetic.
There have been radial-flow concepts for nuclear rockets, although
generally with flow inward rather than outward -- preferable for keeping
hot gas away from the walls.
Henry
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