[TheForge] Foundry heat source

[Jerry Smith]

Jim,

I would very happy if the burners for my foundry setup
would burn at 2,400 degrees F. I have a NC Tool
Whisper Daddy, and it gets plenty hot, above 2,200
degrees F. 

So far I have seen complex burners and not so complex
burners, they all have the same basic structure. I
like Frosty's deaign, because it is really simple and
hard to mess up.

Jerry


--- James Binnion <jbin at well.com> wrote:

> 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
> 
> 
> 
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