[Stoves] Vegetable oils

[Richard Stanley]

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 
>  
>  
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