[Stoves] Fwd: TEG-TLUD Re: Biochar and Uganda and Char-Making stoves

[Ronal W. Larson]

Alex, cc List

	Can you add to the explanation below?  Clearly not a TLUD, but maybe can be operated to produce char?

Ron

> Begin forwarded message:
> 
> From: Crispin Pemberton-Pigott <crispinpigott at outlook.com>
> Subject: Re: [Stoves] TEG-TLUD Re: Biochar and Uganda and Char-Making stoves
> Date: May 22, 2016 at 11:19:20 AM MDT
> To: "'Discussion of biomass cooking stoves'" <stoves at lists.bioenergylists.org>
> Cc: 'John Ackerly' <jackerly at forgreenheat.org>
> Reply-To: Discussion of biomass cooking stoves <stoves at lists.bioenergylists.org>
> 
> Dear Friends
>  
> >Is there a site to go see the Alex English design?
>  
> I dug up only one photo of Alex’s demo unit shown at the Stove Testing Camp 1. It is hard to see unless zoomed, but the combustion analyser says 
>  
> CO2 12.9% [which is an EA level of about 65%]
> CO 1 ppm
> CO/CO2 Ratio 0.0000
>  
> It runs unattended for as long as the hopper has fuel. If you chase the CO down that far the PM is usually almost zero.  Not always of course, as Alex has demonstrated to me!  A few times a week the ash hopper should be emptied depending on the fuel. The sprocket rotates the ash grate bars because Alex has a habit of automating things. The heating system for the greenhouses makes Heath Robinson look like a simpleton. If the fuel feed system jams in the night the computer calls him at home.
>  
> The device below could easily have won the Pellet stove competition if it was mounted onto a stove (to serve as a heat exchanger). The one in his house works that way now. It has a crossdraft burner connected to a standard cast iron stove and vents into the chamber where the fire usually burns.
>  
> Regards
> Crispin
>  
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