[Stoves] Secondary combustion.
rongretlarson at comcast.net
rongretlarson at comcast.net
Mon Aug 1 17:02:24 CDT 2011
John (cc list):
What percentage of these industrial gas furnaces that you deal with use preheating of the combustion air?
And
Is this a totally different question than when working with biomass and pyrolysis? (or coal/coke in SA?)
Ron
----- Original Message -----
From: "John Davies" <jmdavies at telkomsa.net>
To: "Discussion of biomass cooking stoves" <stoves at lists.bioenergylists.org>
Sent: Sunday, July 31, 2011 11:22:03 PM
Subject: [Stoves] Secondary combustion.
Dear Tom and all.
I work with industrial gas furnaces,
Some use a mixture of gasses with H2, CO, CO2, CH4 with traces of C2's to
C4'4's. - with a HV as low as 16 MJ/m3. Others burn Natural gas with a HV
of 40 MJ/m3. Some have preheated air and some do not.
All run with a minimum of excess air, with about 1.5 to 2% O2 in the flue
gas and very low CO.
The common factor in all these flames is the 3 T's . Turbulence,
temperature and time. All having turbulent mixing, A well insulated
combustion chamber, and a large area for the flame to burn to completion.
This is the scenario that we need to try and emulate as far as possible in
the secondary flame of our stoves. How close we can get to this is the big
question.
Regards,
John Davies
-----Original Message-----
From: stoves-bounces at lists.bioenergylists.org
[mailto:stoves-bounces at lists.bioenergylists.org] On Behalf Of Thomas Reed
Sent: 31 July 2011 01:38 PM
To: stoves at lists.bioenergylists.org; Paul Anderson; Hugh McLaughlin
Cc: stoves at lists.bioenergylists.org
Subject: Re: [Stoves] Stoves Digest, Vol 11, Issue 38
Crispin and All
Let's explore the plus and minus of preheating secondary air.
_______________________________________________
Stoves mailing list
to Send a Message to the list, use the email address
stoves at lists.bioenergylists.org
to UNSUBSCRIBE or Change your List Settings use the web page
http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org
for more Biomass Cooking Stoves, News and Information see our web site:
http://www.bioenergylists.org/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20110801/5371904d/attachment.html>
More information about the Stoves
mailing list