Crispin, There are about 20 generically different hand presses out there to date but thus far production averages about20 to 30 kg per person per day. We are coming out with a relatively novel design which far in away exceeds this output but it is more for emergency releif or the more urban populations. However, no matter what lind of press you've got, it is the steady supply of peppery prepared feedstock that makes or breaks the enterprise. The bulk of rural production uses the traditional mortar and pestle which while technically effective, absorbs up to 70% of total production labor. Various hand cranked threshers/ choppers/ tumblers absorb less in the 40 to 50% range but it is not til you engage any of the globally ubiquitous hammermill that you begin to see real increases in production. But few have the capital for such equipment amongst the mass population ?There is a huge need for efficient, simple and rugged material processing technologies
Sent from my iPhone On Sep 11, 2010, at 9:00 AM, "Crispin Pemberton-Pigott" <[email protected]> wrote: > Dear Richard > > Is the limitation on the hand production the press? If so it means an > improved press could make the production viable in more places. > > Is any initiative in place trying to bring forth the ultimate hand press? > > Thanks > Crispin in Canukistan > -----Original Message----- > From: Richard Stanley <[email protected]> > Sender: [email protected] > Date: Sat, 11 Sep 2010 08:38:11 > To: Discussion of biomass cooking stoves<[email protected]> > Reply-To: Discussion of biomass cooking stoves <[email protected]> > Subject: Re: [Stoves] Summary of cost of charcoal? > > Paul, Crispin et al, > > I do not have any hold of international pricing for charcoal, only specific > community pricing, as this assessment is being done routinely by the trainers > or should be, before accepting a training contract. > > In our local area here in Southern Oregon, based on a look at braii/ bbq > charcoal pillow type briquette costs in the local supermarket: > its 88 US cents per pound in 12 to 13.5 pound sacks, and drops to 65 us cents > per pound bought in 17 to 18 pound sacks... > > The holey briquette using usul blend of the usual leaves grasses stras waste > paper and a dash of waste charcoaol fines as produced in the third world > sells for a high of 5 cents for a 140 gram briquette...Thats 454/140 X.05 = > 16 US cents a pound. Assuming about 95% of the cost is labor, At > $3.00/person/day. and given no change in technology of scale of economies , > they could be produced here in Obamaland, for $12.00 a day . > > Technical improvements are a foot which will likely double of the efficiency > of hand production methods, but for what its worth, although the current > energy input cost for producing the briquette is far lower in the third world > (~3.6 watts/kg of hand-produced product), it seems we are not really > competitive in the states at least with the hand processes. > > Will be curious to see what you learn in Brazil, Paul... > > Cao > > Richard Stanley > www.legacyfound.org > > BEtter stay where we are at for manual pressing at least... > > On Sep 10, 2010, at 6:15 PM, Crispin Pemberton-Pigott wrote: > >> Deal Paul >> >> Was that list the purchase price or production cost? If we asked Tom Miles >> nicely I think he could give us a production cost for more than one method. >> >> The reason I ask is that if the production cost is far below the local >> retail price one can imagine affecting the market. >> >> Regards >> Crispin >> -----Original Message----- >> From: [email protected] >> Sender: [email protected] >> Date: Fri, 10 Sep 2010 19:27:52 >> To: STOVES - Listserve<[email protected]> >> Reply-To: Discussion of biomass cooking stoves <[email protected]> >> Subject: [Stoves] Summary of cost of charcoal? >> >> Stovers, >> >> A few months ago there was a discussion collecting data on the cost of >> charcoal purchased around the world for charcoal stoves. >> >> Was there a summary or final report or general data from that discussion? >> >> Please direct me to it, or send it if you have it separately. >> >> I am going to the Biochar conference in Rio on Sunday and I think that >> the cost of charcoal data might be interesting to have. >> >> Thanks, >> >> Paul >> >> ---------------------------------------------------------------- >> This message was sent using Illinois State University RedbirdMail >> >> >> >> _______________________________________________ >> Stoves mailing list >> [email protected] >> http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org >> http://stoves.bioenergylists.org >> http://info.bioenergylists.org >> >> UNSUBSCRIBE HERE; >> http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org >> >> >> _______________________________________________________ >> Unlimited Disk, Data Transfer, PHP/MySQL Domain Hosting >> http://www.doteasy.com >> _______________________________________________ >> Stoves mailing list >> [email protected] >> http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org >> http://stoves.bioenergylists.org >> http://info.bioenergylists.org >> >> UNSUBSCRIBE HERE; >> http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org > > > _______________________________________________ > Stoves mailing list > [email protected] > http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org > http://stoves.bioenergylists.org > http://info.bioenergylists.org > > UNSUBSCRIBE HERE; > http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org > > > _______________________________________________________ > Unlimited Disk, Data Transfer, PHP/MySQL Domain Hosting > http://www.doteasy.com > _______________________________________________ > Stoves mailing list > [email protected] > http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org > http://stoves.bioenergylists.org > http://info.bioenergylists.org > > UNSUBSCRIBE HERE; > http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org _______________________________________________ Stoves mailing list [email protected] http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org http://stoves.bioenergylists.org http://info.bioenergylists.org UNSUBSCRIBE HERE; http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org
