I have figured out how to use the common sensors I've normally used to
measure combustion.
I can have a small leak valve or orifice from the combustion chamber (a
controlled leak) I can cool that leak to a temperature suitable for the
use of the common sensors/analyzers used for exhaust gas.
This should give me what I want and allow me to record that data along
with the test firings data.
-------- Original Message --------
Subject: [AR] Re: Peroxide sensor
From: "Monroe L. King Jr." <monroe@xxxxxxxxxxxxxxxxxx>
Date: Fri, December 18, 2015 2:02 pm
To: arocket@xxxxxxxxxxxxx
The budget is a bit higher than average for this project.
I do get it that clear is good.
Some people measure and some people calculate.
I am the former type. I also feel my way to performance and without
measurements I can't feel enough.
I don't know how to measure clear.
Video will help but that's not enough.
-------- Original Message --------
Subject: [AR] Re: Peroxide sensor
From: qbert@xxxxxxxxxxxxxxx
Date: Fri, December 18, 2015 1:22 pm
To: arocket@xxxxxxxxxxxxx
For us on a budget we simply used the exhaust colour to determine if
we were getting complete decomposition. For a monoprop, if it's clear
it almost a certainty that it's fully catalized. Any thing else means
something is amiss.
I can demonstrate this from a video of a peroxide powered motor bike.
https://youtu.be/tDLrWbvRyyI This is a wet start, quite typical, to a
good clean run
Robert
At 12:35 PM 12/18/2015, you wrote:
This may sound stupid but once upon a time I was a chemist at
Radian Corp. We went to California to do EPA work sampling steam
coming from the oil wells (they inject steam to get the thick oil
to flow) Anyway we used big fin/fan condensers to cool the steam
and used gas chromatography to check for hydrocarbons in the
condensate. condensing the exhaust might be a useful way to get the
data I'm after. I'm not coming into this to play I need empirical
data. Not ballpark results. This is likely too far but it should
give you a sense of how serious I am about getting the proper
data. > -------- Original Message -------- > Subject: [AR] Re:
Peroxide sensor > From: "Henrik Schultz" <henrik@xxxxxx> > Date:
Fri, December 18, 2015 12:14 pm > To: arocket@xxxxxxxxxxxxx > > >
Just measure the temperature using a thermocouple. If it is not
fully > decomposed the residual boiling HTP will keep the
temperature way down. > I forgot the actual number, but you should
be getting in the ballpark of > 600-700 degrees C when fully
decomposed. > > As someone else also pointed out, inject your
gasoline or kerosene into > the hot steam, and it will atomize and
auto-ignite nicely, double your > Isp, and have good combustion
stability. > > /Henrik > > ------ Original Message ------ > From:
"Monroe L. King Jr." <monroe@xxxxxxxxxxxxxxxxxx> > To: "Arocket"
<arocket@xxxxxxxxxxxxx> > Sent: 12/18/2015 10:53:46 AM > Subject:
[AR] Peroxide sensor > > > 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? > >