[Stoves] Aside on coconut husk

[adkarve]

Dear Crispinb,
it is not the quality of the raw material that plays a role, but the
availability.  In our own case, we have sugarcane leaves in abundance but
hardly any coconut husk. We therefore developed a kiln to make charcoal out
of sugarcane leaves. Those having ample coconut husk may make a kiln for
charring that particular raw material.
Yours
A.D.Karve
----- Original Message -----
From: Crispin Pemberton-Pigott <crispinpigott at gmail.com>
To: Discussion of biomass cooking stoves <stoves at listserv.repp.org>
Sent: Thursday, April 12, 2007 6:09 PM
Subject: Re: [Stoves] Aside on coconut husk


> Dear AJ
>
> I think this is becoming a red herring:
>
> >If this is a difficult fuel then there must be reasons it doesn't
> >readily burn the smoke in a secondary flame
>
> I am not at all sure is is difficlt to burn, it is difficult to burn in a
> large open pile because the temperature at which volatiles pour off is
quite
> low.  This may have to do with the huge surface to volume ratio or perhaps
> the volatile nature of the resins.  It appears the smoke is so thick it
> extinguishes the flames in the area where additional heat would further
> support the flame.
>
> It may be a perfect fuel for gasifiers. Only the absence of a stove built
> for it has prevented us from discovering this fact.
>
> I remain worried by the high resin content when it comes to making
charcoal
> powder (big smoke waste).  Otherwise I think it would make a better raw
> material that sugar cane leaves, and they seem to be doing OK...
>
> Regards
> Crispin
>
>
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