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maxc 01-01-2009 04:13 PM

NACA study 531
 
Is seems that water can speed up the CO oxidation.
http://www.not2fast.com/NACA/naca-report-531.pdf

Richard L 13-02-2010 11:57 PM

I have heard this before but never seen a study of it. It is a very good find.

CO is a power robber, it only produces 1/3 of heat energy compared to CO2.

maxc 14-02-2010 12:02 AM

The problem is they used super heated steam for testing. :wink:

Richard L 14-02-2010 09:27 AM

Ah, I see. I will read it up again, very interesting.

maxc 14-02-2010 06:46 PM

Don't read it again that's normal protocol for testing. Change protocol changes results.
There are other types of "steam" other than saturated, dry, superheated.

maxc 10-06-2012 05:31 PM

Re: NACA study 531
 
Quote:

Originally Posted by Richard L (Post 12050)
I have heard this before but never seen a study of it. It is a very good find.

CO is a power robber, it only produces 1/3 of heat energy compared to CO2.

So CO2 can burn? Or does CO interfere more than CO2 in combustion?

Richard L 11-02-2013 10:28 AM

Re: NACA study 531
 
Better be late than never.

CO2 is fully oxidised, no more bonds to attract more oxygen.
CO is the result of lack of oxygen. You can consider it is half burnt wood, giving out half of the heat energy and gets throw out.

In the case of CO, it only gives out 1/3 of the heat energy.

maxc 11-02-2013 08:05 PM

Re: NACA study 531
 
Combustion process releases electrons. In my opinion the right amount and condition of water conducts the flame front at greater speeds.
Characterization of an Electrical Sensor for Combustion Diagnostics http://webserver.dmt.upm.es/~isidoro...cteristics.pdf

Richard L 11-02-2013 10:32 PM

Re: NACA study 531
 
Wow, a great deal of readings to night. Thanks for the findings.

Richard L 17-02-2013 01:19 PM

Re: NACA study 531
 
Had time to glance through the document today. It is an interesting read indeed.

I can imagine how this can be translated into the internal combustion engine dynamics.

Experiment shown present of water vapor aided frame front propagation of CO+O2 to CO2 conversion. During a normal combustion cycle starting from the onset of spark, the production of water vapor is continuous from the product of air and fuel. I can see a distinct advantage if there are presence of excess oxygen. In a fuel rich condition in a oxygen limited closed chamber, most of the CO just exits the engine via the exhaust pipe.

This is just a brief conclusion from reading the article briefly. Please chime in if you view it differently.


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