I am not 100% certain this is the best place for this. Moderators, if you think a different board would be better, please relocate this. Anyway... I am wanting to measure the peak temperatures of my combustions of hydrogen. I got to thinking, "If I am using air as the source of oxygen, then nitrogen is also present. Ergo, nitrogen oxides could be forming." Problem is, I have no idea how to even go about measuring the peak temperatures achieved. It is such a brief thing. I cannot really even measure just how short the instantaneous little bangs are. Do you guys have any thoughts or ideas? I can assume a certain number of Joules based on the amount of hydrogen. But I cannot measure the duration of a combustion, nor do I know of a way to measure the peak air temperature during it. From what I have read, I need to keep it below 1540 degrees Celsius to avoid the production of oxides of nitrogen. I am guessing that using no more than a certain amount of hydrogen in a given time period will allow me to achieve such. Again, I do not know how to go about measuring just how high the temperature of the air is getting, so as to confirm such and set a limit.