[TheForge] photos under "inexpensive recuperative forge"

[Jeffrey Polaski]

>The potential problem with this kind of heat 
>exchanger/scavenger is overheating the air/fuel and 
>having it ignite in the burner tube. Controlling the 
>preheat by blocking the open pipe might work.
Isn't that true of any recuperative forge? At least, if it gets at all
hot I'd think there would be a problem. Is there a design where it's not
a potential problem?


Jeff Polaski
Research and Graduate Studies Webmaster
University of California, Irvine
http://www.rgs.uci.edu/
949.824.6363

-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of Jerry Frost
Sent: Friday, July 21, 2006 12:15 PM
To: Sponsored by ABANA
Subject: Re: [TheForge] photos under "inexpensive recuperative forge"

Bob.

What Jeff did was run his burner tube through a large 
"T" and pipe to the forge. Part of the exhaust is 
routed through the larger pipe surrounding his burner 
tube for the preheat. The open pipe sticking out of the 
"T" is the forge exhaust port, not the burner air 
intake.

It isn't heating the intake air, it's heating the 
air/fuel mix as it runs down the burner tube.

The air intake is on top and looks to be a basic linear 
induction burner. (Aussie, Reil, etc.)

The potential problem with this kind of heat 
exchanger/scavenger is overheating the air/fuel and 
having it ignite in the burner tube. Controlling the 
preheat by blocking the open pipe might work.

Let us know how it works Jeff.

Frosty
-------------------------------
If it ain't forged
it ain't real.
Wrought iron is.
The FrostWorks

Meadow Lakes, AK.

http://www.artmetalradio.com/

From: <schade at acegroup.cc>


> Jeff,
>
> Glad to see that the photoaccess site worked for you. 
> I took a look at your pictures. The way it looks to 
> me the 'recuperative' part of your forge is the fact 
> that you are drawing in hot combustion air from the 
> area above the door where the heat drifts/blows out? 
> Wouldn't this hot air have less oxygen than cooler 
> air? Wouldn't that actually be reducing the 
> efficiency of your burner?
>
> Maybe I am seeing this all wrong?
>
> Bob
> ______
>

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