[TheForge] burners and other addictions

[Mike Porter]

Frosty,
I don't know, maybe heating the propane works for the English company 
because they don't have a decent burner in the first place. I don't need to 
preheat incoming air for a better flame, but simply to scavenge and recycle 
heat. It sounds like your recuperative wall is a good way to go.

Got to admit I'm a little distracted by some exciting news on the vision 
enhancement front--difficult to think about anything else right now. Just 
ran across a perfect product to allow the vision chapter to be shaped the 
way I want; two unified sections. OK, it's also a very good tool in and of 
itself, but that's a minor point under the circumstances, right? :-)
Mikey


----- Original Message ----- 
From: "Jerry Frost" <frosty at customcpu.com>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Friday, March 17, 2006 10:49 AM
Subject: Re: [TheForge] burners and other addictions


> The problem with preheating intake air by passing it across the forge 
> shell is sinking heat from the forge. The idea is to keep as much heat 
> inside the forge for as long as possible so deliberately cooling the forge 
> is counter productive.
>
> The recuperative double wall design recycles the exhaust preheating the 
> inner wall and isolates it almost completely from outside temps. The 
> insulated outer wall is subjected to lower absolute temps than a single 
> wall furnace and if it's inner surface is coated with ITC-100, etc. it's 
> heat exposure is even lower.
>
> Of course there's nothing at all wrong with putting a heat exchanger on an 
> exhaust stack (or whatever) to preheat the intake air. The benefits 
> however aren't nearly as significant. About a year or so back I read an 
> article from a UK company that was preheating the propane and getting much 
> better results than preheating the intake air.
>
> I can't see a reason not to do all three except the gadget factor and 
> hassle of getting it all tuned. Still, taken one thing at a time would 
> make it reasonable for a tinkerer. Know anybody who likes to tinker? 
> <grin>
>
> Frosty
> -------------------------------
> If it ain't forged
> it ain't real.
> Wrought iron is.
> The FrostWorks
>
> Meadow Lakes, AK.
>
> http://www.artmetalradio.com/
>
>
>
> From: "Mike Porter" <michael.a.porter at comcast.net>
>
>
>> Frosty,
>> I gots to mull that idea over for a while (somewhere between a week and 
>> five years, maybe :) I'm not disagreeing, it's just a lot to think about, 
>> all at once like!
>>
>> The only thing missing up front, is that recouping heat from incoming air 
>> also serves to keep an outer wall cooler, and therefore less of a thermal 
>> stress on outer insulation. Of course that is only a concern with 
>> portable equipment (another one of my addictions).
>>
>> Portable equipment is not fundamentally about working on jobsites and 
>> doing demos for me. It is really all about helping young artists to keep 
>> their greedy landlords in check, but that is a whole different 
>> conversation...one that is already written up for book five.
>> Mikey
>
> _______________________________________________
> Manage membership or unsubscribe at:
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  blacksmithblacksmith at hotmail.com
> password:  anvil
> ___________
>
>
>