Crispin, Interesting idea but we never thought of caustic soda: We just dipped one end of the bq for a few seconds-after all, we are talking about its just 1 - 2 ccys / bq., eh. •The oil did not penetrate much more than a cm depth from the dipped end. •It did not actually burn as hot as an oil-less biomass bq. of same blend. •Oil actually retarded combustion once the bq. got going: It appeared to be mainly good for ignition.
Adding more oil (fresh or waste) actually tended to make the bq. soggy. but all this was done back in 97-8 in Malawi then again in 2003-4…with Kobus Venter. We ultimately gave up on it, as we got better at blending, frankly… Kobus may recall more (Kobus?) Richard in balmy Dar es Salaam ======================= On Nov 29, 2011, at 6:45 AM, Crispin Pemberton-Pigott wrote: > Dear Richard > > Would you recommend that one end by dipped in it as an igniter, or is it > applied to the whole outside, or it is mixed in? Seems to me that if dried > sufficiently it might harden and become a binder. > > Surely adding a tiny bit of caustic soda would cause it to set? > > Can you burn soap cleanly if there is only a little? > > Regards > Crispin > > > Crispin Pete et al. , > > Several in Malawi were dipping the agro residue based briquette in said > veggie oils. Kobus experimented with same too. > As I recall, It provided a quick start and readily efficient self-consuming/ > hcleaning/ wicking system for the oil during combustion. Very little is > needed something like 1 or 2 ccs per a 10cm ø x 7.4cm tall, hollow core (~ > 550 cc/~140 gram) briquette. > > Richard Stanley > > > _______________________________________________ > 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/ >
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