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

[Tom Miles]

Roger,

Thanks. Coffee husks would seem to be a fairly common residue. I wonder if
they are burned in other areas where coffee is processed. We heard several
months ago that a coffee plant in Kenya that makes charcoal from the husks
has shut down their charcoal making operation. Direct burning is preferable
but charcoal would serve another common market if it was made efficiently
and the process heat was recovered. 

Tom 


> -----Original Message-----
> From: stoves-bounces at listserv.repp.org [mailto:stoves-
> bounces at listserv.repp.org] On Behalf Of Roger Samson
> Sent: Saturday, September 01, 2007 2:20 PM
> To: 'Discussion of biomass cooking stoves'; 'sekiku Joseph'
> Subject: Re: [Stoves] Would anyone out there help turn coffee husks
> intosome useful renewable energy source in Karagwe, tanzania?
> 
> 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
> 
> 
> 
> _______________________________________________
> 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