[TheForge] Foundry heat source

[James Binnion]

How you burn it can make a huge difference in flame temperature. The  
adiabatic flame temperature of propane and air combustion is 3,622 F  
with both gasses at 77 degrees F and one atmosphere input pressure  
one atmosphere output pressure. Assuming a stoichiometric gas mixture  
and no excess air.   Typical gas forges struggle to get to 2400 F  
more than 1000 F lower in temperature!

The only way to get the max temperature is with laborotory type  
precision, hard to do in the real world but gives you and idea of how  
inefficient typical burners are.

Jim


On Feb 10, 2007, at 2:33 PM, Craig Schaefer wrote:

> Seems to me that no matter which burner you use, propane will still  
> burn at the same temperature.  It's all a question of how you're  
> going to corral that heat and concentrate it, and how MUCH propane  
> you're going to burn. The HF burners get damn hot and will easily  
> power a forge or furnace designed to use them.
>
> CraigS
> Gresham, OR

James Binnion
jbin at well.com