[Stoves] RE: Henson Center Fiure Burner System; Was:Re:improving charcoal stoves

[Tom Miles]

Paul,

Lanny submitted (and I posted) the Center Fire Charcoal Burner
http://bioenergylists.org/en/node/401 in response to Dean's post regarding
improving charcoal stoves. 

Lanny later posted the Center Fire Wood Burner you find at
http://bioenergylists.org/en/node/414 Initially I did not post the wood
burner so that we wouldn't confuse the discussion. Lanny also admits that
the wood burner is very early in development.

The New Lao and Gyapa are of particular interest because they represent the
"state of the art" or most prevalent new designs in charcoal burning with
~50,000 (Gyapa) and 110,000+ (New Lao) in use just in Cambodia. 

CFSP burns wood in their improved stoves  - Samaki, Twin stove and Improved
Loa Kompong Chhnang Stove - which can be found at the Stove Designs link we
provided http://www.cfsp.org.kh/ics_design.html

CFSP is also developing mechanized molds, tools and new kilns for increased
production. Crispin will soon describe his clay ring forming machine for
rocket stoves. These devices should benefit organizations like Dread & Works
in Lusaka who are, I belive, making the Gyapa or KCJ.

We don't know what the CO or CO/CO2 results are for the New Lao or the CFSP
wood burning stoves. That's a project for a Stoves Camp in Cambodia.


Tom Miles
     

-----Original Message-----
From: stoves-bounces at listserv.repp.org
[mailto:stoves-bounces at listserv.repp.org] On Behalf Of psanders at ilstu.edu
Sent: Saturday, June 03, 2006 9:25 AM
To: tmiles at trmiles.com
Cc: 'Jean-François Rozis - Cambodia - France'; 'AJH'; 'Stoves'
Subject: RE: [Stoves] RE: Henson Center Fiure Burner System;
Was:Re:improving charcoal stoves

Dear Stovers,

Quoting Tom Miles <tmiles at trmiles.com>:

> The topic is still charcoal burning. The New Lao, Gyapa and KCJ are 
> examples.

Almost correct.  The topic is "Henson Center Fire Burner System" and it was
"Improving charcoal burning", and at the Bioenergy website is the posting by
Lanny where he is burning biomass, not charcoal.
http://bioenergylists.org/en/node/414
>
> Note that I noticed a "deeper combustion chamber" in the New Lao not a 
> deeper fuel bed as Andrew and Paul imply. We're trying to burn 
> charcoal here not make gas.

I think that the prospects of burning biomass (possibly staged gasification
and close-coupled combustion) in a modified New Lao burner are quite
exciting and could be of interest to Jean-Francois for experimentation in
Cambodia, especially if it can utilize the developments coming via Lanny
Henson's central channel work.

Paul
>
> CFSP can tell us how the stoves are used in practice and what they 
> have measured.
>
> Tom Miles
>
>
>
>>> compare it with the traditional Lao bucket stove on the CFSP site, 
>>> it
> looks
>>> like combustion was improved by using larger holes, a deeper 
>>> combustion chamber, better insulation, and a better fitting gap at the
pot rests.
>
>
>



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