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Old 02-13-2021, 05:39 PM   #1 (permalink)
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Ozone injection

https://iopscience.iop.org/article/1...1/4/042066/pdf

Found this.


Not sure if ithis belongs in the unicorn section.

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Old 02-14-2021, 01:06 PM   #2 (permalink)
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Interesting!

I don't know if there's any possible application though, given that ozone is unstable and quickly reverts to O2.
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Old 02-14-2021, 03:51 PM   #3 (permalink)
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I have several generators and the means measure the effects.

Need to move my posterior
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Old 02-14-2021, 08:59 PM   #4 (permalink)
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I don't believe Ozone might have any benefit to the combustion process.
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Old 02-15-2021, 02:09 AM   #5 (permalink)
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The guys who tested it and published, claim that it is beneficial under certain conditions. Which part of the publication do you not believe?
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Old 02-16-2021, 11:31 PM   #6 (permalink)
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Nowadays with all the witch-hunting regarding NOx emissions, I didn't even have to go deep into that publication to understand why it would eventually not be suitable from a commercial standpoint.
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Old 02-18-2021, 01:34 AM   #7 (permalink)
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There have been studies done in the past.

Ozone is known to increase the reactivity of a fuel mixture.

https://www.sae.org/publications/tec.../2017-01-0727/

Just Google "Ozone Seeding Effects".

Very low concentrations in the Parts Per Million range are able to effect combustion by providing oxygen radicals via decomposition of the ozone.
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Old 02-18-2021, 10:04 PM   #8 (permalink)
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Quote:
Originally Posted by RustyLugNut View Post
Very low concentrations in the Parts Per Million range are able to effect combustion by providing oxygen radicals via decomposition of the ozone.
At first it seemed interesting, even though the NOx increase would be troublesome nowadays. Had the Ozone displaced some of the atmospheric Nitrogen at the intake of the engine, would've been better.
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Old 02-18-2021, 10:32 PM   #9 (permalink)
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This is a very subtle concept.

Quote:
Originally Posted by cRiPpLe_rOoStEr View Post
At first it seemed interesting, even though the NOx increase would be troublesome nowadays. Had the Ozone displaced some of the atmospheric Nitrogen at the intake of the engine, would've been better.
The production of NOx and Soot/particulates are counter to each other. It is well known that an increase in Exhaust Gas Re-circulation (EGR) will reduce the temperature of the flame front in a compression ignition engine (Diesel), reducing the formation of NOx. However, as the fuel to oxygen ratio approaches 80 % (Lamda=0.8) there is an increase in the formation of particulates.

But, what if you could increase EGR to the point of reduction of NOx and forestall the formation of soot? Ozone provides a tool to do this.

The EGR mixture has poor reactivity but the addition of a small amount of ozone makes up for this resulting in more of the fuel being burned without an undue increase in NOx output.

Last edited by RustyLugNut; 02-18-2021 at 10:33 PM.. Reason: Additional.
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Old 02-18-2021, 10:39 PM   #10 (permalink)
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Quote:
Originally Posted by RustyLugNut View Post
But, what if you could increase EGR to the point of reduction of NOx and forestall the formation of soot? Ozone provides a tool to do this.
Now it makes sense. On a sidenote, due to the Coronavirus outbreak, it has been quite common to see Ozone generators being used to sterilize commercial venues. Maybe not too hard to repurpose one and mount it to a truck or bus...

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