[Stoves] Would anyone out there help turn coffee husks intosome useful renewable energy source in Karagwe, tanzania?

[Roger Samson]

Hi Tom

This is what I already had written Joseph. 

"I have never burned coffee husks in our stove but have burned peanuts
shells, rice husks, cocoa shells and millet husks. I think they should burn.
Our stove is designed for bulk porous fuels. If the fuel isn't porous enough
(like sawdust) we have to mix it with more porous fuels like rice hulls. You
might even be able to get by with crushed corn cobs if its too dry to grow
rice."

I will add we modified our stove to burn millet husks pretty effectively
simply by increasing the hole size in the fuel hopper. Its a shame that
these hulls are burned when the countries throughout Africa are deforesting
so badly.

regards

Roger Samson

Executive Director

REAP-Canada

Box 125 Centennial Centre CCB13

Ste. Anne de Bellevue, QC H9X 3V9

T: (514) 398-7743

T: (514) 398-7972

E: rsamson at reap-canada.com

W: www.reap-canada.com 


-----Original Message-----
From: stoves-bounces at listserv.repp.org
[mailto:stoves-bounces at listserv.repp.org] On Behalf Of Tom Miles
Sent: Saturday, September 01, 2007 3:36 PM
To: 'sekiku Joseph'; 'Discussion of biomass cooking stoves'
Subject: Re: [Stoves] Would anyone out there help turn coffee husks intosome
useful renewable energy source in Karagwe, tanzania?

Joseph,

In addition to the suggestion by Richard Stanley to make fuel briquettes the
coffee waste could probably be burned in a bulk feeding stove with a sloped
grate like our old sawdust heating stoves. Larry Winiarski at Aprovecho has
built these combustors for rice husks and manure. The user would probably
have to shake the grate once in a while. See picture of the self feeding
Chumal ETHOS 2005.
http://www.bioenergylists.org/stovesdoc/ethos/ethos_jan_05.html

Roger Samson, Would the Mayon Turbo work for coffee husks?
http://www.reap-canada.com/bio_and_climate_3_3_1.htm

Tom Miles



  

> -----Original Message-----
> From: stoves-bounces at listserv.repp.org [mailto:stoves-
> bounces at listserv.repp.org] On Behalf Of sekiku Joseph
> Sent: Saturday, September 01, 2007 12:19 PM
> To: stoves at listserv.repp.org
> Subject: [Stoves] Would anyone out there help turn coffee husks into
> some useful renewable energy source in Karagwe, tanzania?
> 


> See: http://www.bioenergylists.org/en/sekikucoffeewaste

> 
> Greetings. I am called Joseph sekiku, working with the Eden Centre for
> appropriate technology (www.ecat-fadeco.org). I am confronted by a
> desire to
> 
> find solution to waste that could be turned into useful stuff (energy)
> here.
> 
> Let me explain:
> 
> I come from Karagwe district, Kagera region, NW Tanzania. This is a
> predominantly coffee growing area. Since 4 years ago, with the
> liberalization of the coffee trade, 6 coffee processing factories have
> started. Two years ago, two of the factories were destroyed by fire
> from
> coffee husks heaped outside the factroeis. there are now 4 coffee
> processing
> 
> factories.
> 
> These factories produce a lot of coffee husks (thousands of tons).
> Unfortunately, these husks have no commercial value at all. Instead,
> after
> the season, they are set on fire. The fire goes on for months.
> 
> I beleive that these hsuks can be transformed into some useful energy
> source - either into electricity or just for cooking. I have been
> imagining
> a situation where these coffee husks could be transformed into
> brickets,
> ceiling boards or even mulch for the farms.
> 
> Imagine for karagwe district, there is a very high rate of
> defforestation-
> and apparently much of the fporest cover is completely no more. Tree
> cutting
> 
> continues to today.
> 
> I am sending you some pictures about the situation. I have talked to
> the
> coffee factory owners : Karagwe marketing Ltd, KDCU Ltd, Amri amir Ltd
> and
> another one that I do not have the name off hand now. They have no plan
> for
> the thousands of tons of husks from their factories but to set fire on
> these.
> 
> Would any of you in thne Stoves listserve be interested in visiting or
> finding out a solution for these?
> 
> let me know please,.
> 
> Joseph sekiku


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