On Sunday 04 December 2011 04:21:38 Crispin Pemberton-Pigott wrote: > Fortunately the poorest people are stuck in the middle of nowhere and > are hard to get to so They will have first dibs on the resource. Good.
To my mind it is the fact that is a low value, distributed resource with high transport costs that makes agri residues an ideal fuel for stoves, and particularly char making stoves IF there is an agronomic benefit in biochar to the producer. Fossil fuels are dealt by oligarchies from rich pockets underground and consumed by centralised processes yet the CO2 produced becomes fairly evenly distributed so can be sequestrated locally. My doubt remains that there is, or can be, a means of rewarding the small scale sequestration other than an increase in production from the treated soil. Richard and others' work with medium density briquettes and the acceptance of them in simple bucket type stoves is leading the way with agri residues. From my feeble attempts in UK I find I cannot air dry things like corn cobs sufficiently for them to burn in small scale TLUD devices and previous experience with making briquettes I both failed to get the density or moisture content right. The former, I suspect from instructions Richard has given here, from inadequate retting and preparation. Moving on slightly; does anyone know what the chemistry of banana skins is that they fail to suprort flaming combustion even when dry? AJH _______________________________________________ Stoves mailing list to Send a Message to the list, use the email address [email protected] to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org for more Biomass Cooking Stoves, News and Information see our web site: http://www.bioenergylists.org/
