[Stoves] Dean did you get my private mail to you?

[Fundacion CEDESOL]

If so please reply to david dot cedesol at gmail dot com
If not please register that address in your spam filter and advise me to
resend. 
The mail contained pictures.
Thanks
David 

On 03/6/06 08:38, "Dean Still" <dstill at epud.net> wrote:

> Dear All,
> 
> We tried the center hole idea once under the hood. It was pretty low
> powered. Maybe because there was less radiation to the pot? Charcoal seems
> to mostly work by radiation in the Gyapa, Jiko stoves. Using a skirt around
> the pot does not seem to help very much maybe because of low velocity, lower
> Delta T?
> 
> Larry suggests metering the charcoal like wood pellets down a grate into a
> Rocket stove. Like the center hole idea then we are trying for heat transfer
> by convection, I guess?
> 
> Nordica MacCarty has done more tests of charcoal at our lab and we will be
> contributing soon.
> 
> Best,
> 
> Dean
> 
> -----Original Message-----
> From: stoves-bounces at listserv.repp.org
> [mailto:stoves-bounces at listserv.repp.org] On Behalf Of Tom Miles
> Sent: Friday, June 02, 2006 9:21 PM
> To: 'AJH'; 'Stoves'
> Subject: RE: [Stoves] RE: Henson Center Fiure Burner System;Was: Re:
> improving charcoal stoves
> 
> 
> An important question is whether Lanny's Center Fire Charcoal burner can be
> used to significantly improve the performance of existing charcoal stoves or
> be adapted to large scale production and dissemination.
> 
> If you look at the (Ashden Awards Finalist) CFSP New Lao Bucket stove (
> www.bioenergylists.org ) and follow the links (CFSP Stove Designs) to
> 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. Would
> adapting a center fire grate improve performance of this stove for cooking
> Cambodian foods? 
> 
> Dean has probably been testing the Gyapa charcoal stove by VITA/Enterprise
> Works. (See Stoves>GYAPA on www.bioenergylists.org  or
> http://www.enterpriseworks.org/prog_profile_energy_gh.asp ) The Gyapa is an
> improved Kenya Ceramic Jiko (which in turn came from the Thai bucket stove).
> Can the center fire burner concept improve the performance of the Gyapa?
> Hopefully Dean has done some tests by now.
> 
> Tom Miles
> 
> 
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