[Stoves] Fuel classification system

[Tom Miles]

David,

Greetings. Of course we need to identify the brushwoods. There are families
of burshwoods that are pretty commonly used. 

I looked up your tola (or tolla) and yareta previously. I would think that a
dry yareta would burn something like a crown of turf or moss, or a loss fill
of straw.

The UCB WBT spreadsheet has heating values for about 80 species that someone
spend time developing so presumably they cover most species.

Tom




 

  

-----Original Message-----
From: stoves-bounces at listserv.repp.org
[mailto:stoves-bounces at listserv.repp.org] On Behalf Of CEDESOL Foundation
lists
Sent: Thursday, January 04, 2007 11:49 AM
To: Discussion of biomass cooking stoves
Subject: Re: [Stoves] Fuel classification system

Tom Miles wrote:
> Frank,
>
> Wood is still the reference fuel because it is the most prevalent even 
> though there will be lots of other residues mixed in or there will be 
> areas with mostly dung. You can't find the data if you don't know the
species.
>
> Density is the single most important property of wood that 
> differentiates its burning characteristic. You can plot ignition time, 
> the volume burning rate, and percentage left as charcoal all as a 
> function of wood density. CO, PM and VOC emissions also appear to vary
with density.
>
>   
snip
Tom, first off - How is the family?  Happy New Year to you all!

How do we figure or take into account native species like Kiswara,
Eucalyptus,  Tola (which is a bush, would that be wood?)
> The next distinction is between wood and non-wood. Grasses and 
> agricultural residues including corn cobs and husks have completely
different properties
> than wood.   
>
>   
and here is where the walking gets "thicker" - animal dung, which is
relative to what they are grazing on and maybe climate.  Species like
Yareta, which I think is like a liechen, but I've been told it is a tree
(¿), tundra . . .
> If we can identify wood species and characteritics relative to test fuels
we
> will have accomplished a lot. Next can look at non-wood fuels.        
>
> Tom
saludos
D

--
"We make a living by what we get... we make a life by what we give." -
unknown author

David Whitfield V.
Executive Director
CEDESOL Foundation

Alternative Education, Renewable Energy, Social Equality 

http://www.cedesol.org

SKYPE - solar1bol



_______________________________________________
Stoves mailing list
Stoves at listserv.repp.org
http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org
http://www.bioenergylists.org