[Gasification] [WoodGas] Re: Perfect Hearths
Greg Manning
a31ford at inetlink.ca
Mon Mar 31 11:52:05 CDT 2008
Ah... EDSI or EDS >? or could it ... SHL/MCI ?
LOL,
Stewart, I have access to a foundry not 2 hours from me, set-up is nominal,
5 pc. minimum.
I'm currently experimenting with some really "radical" thinking (that is my
"MO" lol), in that making a hearth from 314ss tubing, and drawing the inlet
air through that tubing, gas evolution happens just above the hearth, and
the heat is being drawn down to the hearth, therefore my thoughts are two
fold.
1) With downdraft units, pre-heating of inlet air does one thing, assists
in the water/gas phase shift, by keeping all things in the carbonization
area hotter than with no preheat (shift is dependent on reaction temp.)
2) Because gas evolution happens just above, and heat rises / cool falls,
the tubing would act as a "pre-cooler" to gas "cooling" for non-dioxin/furan
formation, and I believe the CO to CO2/soot shift would also be much harder
to have happen.
With this said, one final thing, we would sure know when a hearth cracked or
pitted through as the incoming air would ignite the gas stream for a short
period of time, and then gas evolution would cease. (there by telling you
"you have a problem") ......
Greg Manning
-----Original Message-----
From: WoodGas at yahoogroups.com [mailto:WoodGas at yahoogroups.com]On Behalf Of
Stuart Perkins
Sent: Monday, March 31, 2008 8:37 AM
To: WoodGas at yahoogroups.com
Subject: RE: [WoodGas] Re: Perfect Hearths
Ah, another former EDSer...
I was an SE with S.O.D. in Plano, cluster bldg 2.
I don't consider anything under 100k "massive" even for a slow
connection.
Top posting is preferred, as I tend to read my e-mails rapidly, and
scrolling through old messages and old tag-lines placed by e-mail
programs and yahoo takes long enough that I am unlikely to bother unless
I have reason to suspect something of worth "down below". I decide to
read or not based on the first 12 or so lines of a post. Trimming is
good though, or better yet, start a new thread. Normally, topic drift
will really happen after about 10 messages.
Speaking of topic drift...has anyone here ever tried casting a hearth
rather than building one from scraps? If one were to cast an iron
hearth, what would be the "perfect hearth" design?
Stuart
On Sat, 2008-03-29 at 16:17 -0500, Greg Manning wrote:
> Steve, Several hundred kilobytes ?????
>
> Try 23 Kb, believe me, being a retired "Network Engineer" for EDS (a
> huge
> network company) I do NOT feel that 23k is a "MASSIVE" file...
>
> I will agree with you, that <snip> is a proper method, and when it's
> as you
> say "Hundreds of lines of text" yes, I would snip.
>
> NOT expecting someone else to "Chastise" me for my "netiquette"
> critique of
> simply helping someone post "professionally"-, I had left the
> "message" in
> original form for the exact reason I was speaking about. (so people
> like you
> would understand where I was coming from, but I guess I'm not as smart
> as I
> thought I was....)
>
> But then again, what do I know.....
>
> Greg Manning,
>
> MCSE+I, MCP, CNA, CNE, A+, NETWORK +, CCNE, CCNA, ALL H/P certified,
> COMPAQ
> ACT, IBM, YPC46 & LT certified, retired.
>
>
>
>
>
> -----Original Message-----
> From: HYPERLINK "mailto:WoodGas%40yahoogroups.com"WoodGas at yahoogroups-.com
[mailto: HYPERLINK
"mailto:WoodGas%40yahoogroups.com"WoodGas at yahoogroups-.com]On
> Behalf Of
> steveastrouk
> Sent: Saturday, March 29, 2008 11:32 AM
> To: HYPERLINK "mailto:WoodGas%40yahoogroups.com"WoodGas at yahoogroups-.com
> Subject: [WoodGas] Re: Perfect Hearths
>
> --- In HYPERLINK "mailto:WoodGas%
> 40yahoogroups.-com"WoodGas at -yahoogroups--.com,
> "Greg Manning" <a31ford at ...--> wrote:
> >
> >
> > Greetings Troy.
> >
> > Can I ask something of you ??
> >
>
> Greg,
> Can I ask something of you too ??
> Instead of top posting on top of several kilobytes, or hundreds of
> lines of previous messages, PLEASE snip 'em out - if you aren't
> making any comments on the text contained in them, that way the digest
> is readable too.
>
> Steve
>
> No virus found in this incoming message.
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> 3/28/2008
> 10:58 AM
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> 10:58 AM
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> [Non-text portions of this message have been removed]
>
>
>
>
>
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