This may sound like a stupid question, but I would like to hear the input of the science-oriented dopers: (Maybe I’m missing something?)
If a candle burns in a closed room assuming minimal leakage to keep enough of an O2 supply to keep burning, will the room reach thermal equilibrium with the flame temp? (Does that much heat leak through the walls to prevent this?)
Or, is it that the room is like a heat sink for the candle flame’s heat? A tiny point at a high temp will never cause a great rise in a large volume of air at 68-72 F. (This would mean the surface area of the walls, being a rather large value, does indeed permit enough leakage to allow the room to act as a heat sink for the candle’s high temp.)
And, why does a flame itself have a temperature gradient? Shouldn’t it really be that each section of the flame (which we observe as the different colors within the flame) all be at some average temp?
It’s late…maybe the answer will be obvious in the morning.
For now, I WAG the candle flame must lose a significant amount of heat in that short amount of space where the flame is still blue…
I’m blowing out the candle now to say goodnight!