Talk:Adiabatic flame temperature

message: The table in the article is claimed to be for stoichiometric fuel-oxidizer mixtures, but also under atmospheric conditions. Does this mean the other gasses that make up air are taken into account in the calculation/measurement? Obviously, an air mixture that also contains a lot of Nitrogen Gas would result in a different Temperature than a pure Fuel-oxidizer mixture.  — Preceding unsigned comment added by 131.155.221.211 (talk) 09:34, 5 October 2017 (UTC)
thread_title:  unclarity  about listed flame temperatures 

message: This page seems to contain many unpublished calculations by one author. Seems well written, but may be outside of wikipedia standards for original research.
Vaudeville (talk) 18:57, 4 January 2008 (UTC)
thread_title:  Original research 

message: We have a number of questions about flame energy and temperature on Talk:Oxyhydrogen#Enthalpy and Talk:Atomic hydrogen welding due to some dubious claims made about a certain welding process ("our flame is hot enough to vaporize tungsten!")  We welcome any input from people who are familiar with the processes and calculations. — Omegatron 19:52, 27 January 2008 (UTC)
replies: text: If you are cutting Tungsten or Steel, you have a ratio of pure Oxygen and actually burning not melting the Steel. The Hydrogen arc welders break the very strong (104 KCal/mole) Hydrogen molecule bond resulting in plasma like temperatures on recombination and after all, Tungsten melts at only 3500 degrees. 
--Shjacks45 (talk) 06:39, 11 July 2011 (UTC)
thread_title:  Questions about flame temperature 

message: What kind of diagram is requested? A graph? A chart? Any similar examples of what you're after? pfctdayelise (talk) 15:40, 26 July 2008 (UTC)
replies: text: I'm not seeing what it would be either. I'll remove the request. The addition was this diff by Omegatron. I'll ask him on his talk page. —Ben FrantzDale (talk) 18:05, 26 July 2008 (UTC)

text: Needs a diagram of the two processes.  How is the flame temperature physically measured? — Omegatron (talk) 22:45, 24 August 2008 (UTC)
thread_title:  "Diagram needed" 

message: Atomic Absorption Spectroscopy instrument manuals list common gas mixtures. Also there are some Rocketry references re flame temps also. This list is all gases. Probably could list solid fuels and liquids as well, e.g. Magnesium metal in air is 2800 degrees C. (Bank robbers open vaults with Magnesium tubes with oxygen flowing through for even higher temperature.)
AA fave for refractory metals was Cyanogen and Nitrous Oxide (decomp of N2O generates energy also). Ammonia and Oxygen (can burn as gases) was rocket fuel in X-15 plane. Ammonia also burns in Freon. I worked at Rocket Research (before Aerojet takeover) and catalytic (Iridium) decomposition of Hydrazine (vapor in space vacuum) to N2 and H2 was around 2000 degrees requiring refractory nozzles. One welding technique is dissociation of H2 to H + H. the subsequent recombination generates plasma scale temperatures (104 KCal/mole).
At least add the Cyanogen/Nitrous Oxide and Ammonia/Oxygen flame temps, Hydrogen/Flourine, and Ammonia/Freon would be nice too.
Shjacks45 (talk) 21:34, 10 July 2011 (UTC)
thread_title:  missing flame temps 

message: OK, I know that this is a theoretical value with the listed temperature occurring rarely if at all. Having said that, the AFT for wood is listed at 1980°C. It is relatively well known (I can cite piles of papers if needed) that Iron (Fe) cannot be melted directly by wood (or charcoal) burning in air. People tried for about 12 centuries. That's why pre-industrial iron production involved liquefying everything BUT the iron in the iron ore, and manipulating the red hot spongy mass of iron that remained.
Given that the listed melting point for Fe is 1535°C, I'm thinking that if the real AFT for wood was 1980°C, there would have been a lot more melted iron ore in the ancient era.
Or maybe it's just a really good example of theory and practice differing.  — Preceding unsigned comment added by Riventree (talk • contribs) 04:14, 9 April 2012 (UTC)
thread_title:  AFT for Wood seems high 

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message: Value for methane + oxygen looks like nonsense (9kK?!), completely out of line for hydrocarbons, and the supporting ref is not reputable. Not a domain expert here, but seriously...  — Preceding unsigned comment added by 75.142.76.114 (talk) 22:48, 8 March 2017 (UTC)
thread_title:  AFT for methane / oxygen 

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