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Old 01-01-2009, 04:13 PM
maxc maxc is offline
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Default NACA study 531

Is seems that water can speed up the CO oxidation.
http://www.not2fast.com/NACA/naca-report-531.pdf
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Old 13-02-2010, 11:57 PM
Richard L Richard L is offline
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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.
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Old 10-06-2012, 05:31 PM
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Default Re: NACA study 531

Quote:
Originally Posted by Richard L View Post
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?
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Old 14-02-2010, 12:02 AM
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The problem is they used super heated steam for testing. :wink:
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Old 14-02-2010, 09:27 AM
Richard L Richard L is offline
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Ah, I see. I will read it up again, very interesting.
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Old 14-02-2010, 06:46 PM
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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.
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Old 11-02-2013, 10:28 AM
Richard L Richard L is offline
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Default 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.
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Old 11-02-2013, 08:05 PM
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Default 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
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Old 11-02-2013, 10:32 PM
Richard L Richard L is offline
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Default Re: NACA study 531

Wow, a great deal of readings to night. Thanks for the findings.
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Old 17-02-2013, 01:19 PM
Richard L Richard L is offline
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Default 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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