Talk:Combustion

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Factual error[edit]

This was a dispute over the inclusion of N2 in the equation of complete combustion since it doesn't react. It was decided it should be kept since it affects the temperature and does react to make minor species. Full details are in the Combustion Archive.

Improvements needed[edit]

This was a dispute that spawned from confusion over different terminology meaning the same thing, particular adiabatic combustion temperature with adiabatic flame temperature and heat of combustion with heating value. It was decided that a more conscious effort should be made to include multiple terminology but to also to point the terms are equivalent. Full details are in the Combustion Archive.

Away from the basics[edit]

Does anyone understand what characteristic of oxygen makes combustion happen? What is it about reactions with that specific element that makes fire? How does that attribute work which makes it different from any other reaction that is not combustion? I'd appreciate any input. Thank you.

Typo regarding Nitrogen[edit]

In the "Complete vs. incomplete" section:


"Nitrogen does not take part in combustion, but at high temperatures, some nitrogen will be converted to NOx, usually between 1% and 0.002% (2 ppm)."


One of those figures (0.002% and 2 ppm) has to be wrong, because...


0.002% would be 20 ppm.

0.0002% would be 2 ppm.


I would change it myself but I don't know which figure is the correct one, and having no luck searching online.

Recent update[edit]

Some earlier Talk discussion indicated a need for more references, clarification on the nature of incomplete combustion, and the extent of NOx presence in excess air combustion products. To accommodate these and other suggestions, two new sections were created, and various minor edits were performed to bring greater consistency in symbols and concepts throughout the article. Several new references to combustion and the calculation of combustion extent were found, and added. Thermbal (talk) 18:04, 4 July 2013 (UTC)

  • This article needs a section on thermodynamics and kinetics of combustion (first chapter of any textbook on combustion) instead of mostly irrelevelant discussion of complete vs. incomplete combustion. Methane never burns completely to CO2 and H2O, but (depending on pressure and other parameters) products of combustion, including dozens of intermediate species, tend to get to the thermodynamic equilibrium. Completeness of combustion is the measure of the ability of the products to reach equilibrium concentrations and in general depends on kinetic factors and times of residence in the combustion chamber. --Fedor Babkin (talk) 06:16, 15 January 2014 (UTC)