[Stoves] Cashew shell stove.

[ajheggie at gmail.com]

Thanks for that reply Crispin.

Nonso is not yet subscribed to stoves, which I can expedite if he wishes,

Andrew

On Fri, 12 Apr 2024 at 03:35, Crispin Pemberton-Pigott
<crispinpigott at outlook.com> wrote:
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> Hello Nonso
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> E ku owuro kutukutu fun eyin ti e n se.
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> It is important to understand the scale of the operation.  Are you using a pan about the size of a gari roaster? Fish dryer?
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> You are deep frying, correct?  What is the man size? Are you perhaps using a large wok?
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> It matters a great deal what the heated area is and whether or not the heat has to be well distributed.
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> Is it correct that you have a large volume of wet plantain skins and a stack of cashew nut shells which have (or have not) been roasted?
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> Cashew shells have a very high energy content relative to other biomass.  There was a power station north of Maputo that was fired exclusively by such fuel.  It is used in the pottery business as well.
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> The skins are highly suited to being used as input material to a rapid digestion biogas system, either one you have to create cooking gas on a daily basis, or which you give/sell to someone who has a digester running on sugary/starchy, not cellulose, fuel like dung.   Obviously the skins would have to be dried first. It they are wet you wouldn’t have to do anything to them to create biogas.
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> If you are using a large wok with oil, it should be mounted over a cylinder slightly smaller than the outside diameter and be fitted with a chimney.  There are several ways to burn cashew shells.  You can have quite a high draft (air speed) from a chimney blowing on them.  They will burn like charcoal.  It means you can have a relatively small fire with strong draft, and rapid fuel replacement, probably from a hopper.
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> But the start the conversation, we have o know the size of everything so calculations can be made about the required target fuel burn rate.
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> Feel free to send photos but the size limitation her is quite small.  Feel free to send the to me directly and other contributors if they are larger than 1 MB or so.
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> Based on your fuel use at present (what is it?) how much fuel do you use at the moment per day?  That plus some photos gives us an understanding of the heat requirement.
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> Best regards
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> Crispin
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> Crispin Pemberton-Pigott
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> New dawn Engineering Inc
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> Alberta
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> Canada
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> crispin at newdawnengineering.com
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> Sent: Tuesday, April 9, 2024 7:47 PM
> To: stoves at lists.bioenergylists.org
> Subject: [Stoves] ***SPAM*** Cashew shell stove.
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> My name is Nonso. I run a small scale business of processed cashewnut and plaintain chips. The raw materials of these two product pose a cost of disposal and the cost of energy in Nigeria is very expensive.  Most times it is not available. Kindly help me with a simple stove design that can utilize these raw materials to produce heat for plaintain chip making and won't have smoke
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