Depends on initial HP concentration, decomposition temperature and pressure.
Using > 85 % HP thin stainless thermocouple housings do indeed melt in
decomposition gas. Happens is a flash in a flash. I know of it... cost me some
money...
That is what happened to the front silvered stainless screens of the Mercury
RCS packs too: melting and combusting in oxygen. They ran ± 90 %. Later
versions used platinum screens in front of the decomposer pack. That worked,
but is not for amateur budgets.
jd
-----Original Message-----
From: arocket-bounce@xxxxxxxxxxxxx [mailto:arocket-bounce@xxxxxxxxxxxxx] On
Behalf Of Henry Vanderbilt
Sent: vrijdag 18 december 2015 20:18
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Re: Peroxide sensor
I'd be inclined to look at the flow temperature at a number of points across
the cat-pack exit. Dunno how hard it is to find thermocouples that'll survive
in an oxy-steam mix that hot, mind - if that's an impracticality, then an
indirect temp measurement at the exit might serve.
On 12/18/2015 11:53 AM, Monroe L. King Jr. wrote:
Sensing combustion is a bit difficult but using peroxide it occurs
to me it might be more possible to sense the catalyzation completeness
in an easier way?
Any thoughts on how that might be accomplished?