One thing your going to have to be prepared for, at least with using
silver as the catalyst, in my experience no two runs are exactly the
same. There is a little bit of an art in getting a clean run and with
silver, temperature, RH and even barometric pressure can play a role
in getting a good clean run.
Robert
At 04:14 PM 12/18/2015, you wrote:
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? > >