[AR] Re: Hypothetical Lox cooling

  • From: Henry Vanderbilt <hvanderbilt@xxxxxxxxxxxxxx>
  • To: arocket@xxxxxxxxxxxxx
  • Date: Tue, 20 Oct 2020 11:32:11 -0700

Speaking of possibly exciting hobbies, what happens if you boil peroxide in cooling passages?  Is that another one of those things one should avoid?

I gather peroxide cooling worked in Black Arrow, but I have the impression from various distillation tales of woe that peroxide vapor is much less stable than the liquid.  I might guess both that preheating the peroxide could help with catalyzing or directly combusting it, and also that making sure it stays liquid till then is indicated, but those are just guesses.

Henry

On 10/20/2020 11:09 AM, Doug Jones wrote:

A supercritical positive-heat-of-formation oxidizer with oily contaminants leached from every step of the distribution chain. What could possibly go wrong?

On Tue, Oct 20, 2020 at 11:04 AM Bruno Berger <bruno.berger@xxxxxx <mailto:bruno.berger@xxxxxx>> wrote:

    Am 20.10.2020 um 19:53 schrieb roxanna Mason:
    > Is your fuel even less satisfactory?
    > Perhaps it's a LOx/solid fuel hybrid and you want to cool your
    nozzle.
    >
    Yep, we discussed that at ARIS for cooling the nozzle with N2O for
    their
    5kN hybrid. But N2O probably gets super critical which makes me
    nervous :-(

    Bruno



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