Re: "Formula for Biomass" and Charcoaling....

["*.English" <english@adan.kingston.net>]

Dear Tom,
My tests on IDD stoves have recorded  fuel temperatures of 600 to 800 
C depending on primary air (superficial) velocities through the fuel.
http://www.ikweb.com/enuff/public_html/bigtop/bigtop2.htm 
show a peak pellet temperature of 800 C when using a blower, which is 
the temperature as the pyrolysis front passes the thermocouple.
When using natural draft the corresponding peak is around 600 C.

 So according to your guidelines below, I have been producing 
metallurgical charcoal with natural draft and activated charcoal when 
I use forced air.

Where is the lab that could give me a complete charcoal appraisal?

 Alex

> Torrefied wood; Sea Sweep (oil absorbent); Cooking charcoal; mettalurgical 
> charcoal; activated charcoal
> 
> corresponding to driving off 0.1, 0.2 etc. waters.... at temperatures of 
> 275; 360; 425; 600 and 800 C.  
> 
> Yours truly,              TOM REED
> 
> 
> 
> In a message dated 1/3/02 11:22:40 PM Mountain Standard Time, 
> pverhaart@optusnet.com.au writes:
> 
> 
> > 
> > Stove dried wood contains about 50% carbon (at least I think that was the 
> > rule of thumb we adopted). Next we assumed the rest was H and O in the 
> > proportion of water. This gives .
> > Nobody suggests this is accurate but works in the world of stovers.
> > There was a staff member at Eindhoven (not in our faculty, I am happy to 
> > say), who explained the charcoal making process as driving off the water.
> > If things were only that simple.
> > 
> > Piet
> > 
> 
> 
> 
> 

-
Stoves List Archives and Website:
http://www.crest.org/discussion/stoves/current/
http://www.ikweb.com/enuff/public_html/Stoves.html

Stoves List Moderators:
Ron Larson, ronallarson@qwest.net
Alex English, english@adan.kingston.net
Elsen L. Karstad, elk@wananchi.com www.chardust.com

List-Post: <mailto:stoves@crest.org>
List-Help: <mailto:stoves-help@crest.org>
List-Unsubscribe: <mailto:stoves-unsubscribe@crest.org>
List-Subscribe: <mailto:stoves-subscribe@crest.org>

Sponsor the Stoves List: http://www.crest.org/discuss3.html
-
Other Biomass Stoves Events and Information:
http://www.bioenergy2002.org
http://solstice.crest.org/renewables/biomass-info/
http://solstice.crest.org/renewables/biomass-info/carbon.shtml

For information about CHAMBERS STOVES
http://www.ikweb.com/enuff/public_html/Chamber.htm