[Stoves] Jamaican cooking

[Crispin Pemberton-Pigott]

Dear Otto

 

There are two devices which are quite different in performance: the Jiko
stove (I think the word jiko means 'charcoal stove') and the Improved Kenyan
Jiko (IKJ) which is the one to which most people refer when saying 'Jiko' or
'JIKO'. The IKJ is a ceramic lined jiko. It was developed by a school
teacher and made a commercially viable reality by Hugh Allen (a ceramics
specialist, presently head of a AT centre in Tanzania).

 

The Jamaican stove is made to have pots sit into the skirt and is not like
the IKJ at all in that sense. It is an interesting device: normally jikos
are not strong enough to take the pressure of having a pot inside the
ceramic because the clay is so poor and the fit not much better. 

 

>I guess it will look very nice and "improved", but most certainly the
aluminium will start melting and create toxic emmissions.

 

I am not sure how improved it will be in the fuel use sense, but I am
interested in knowing what you think are the toxic emissions from melting
aluminum. That would be valuable to know.

 

I am not sure we can assume the fire will, with any ease, melt the body. I
recently filed a patent on an aluminum coal stove. J

 

>Fuel saving 40% (fieldtest).

 

Actually they said it was the thermal efficiency that is 40%. That is low
for a charcoal stove. However whether or not it was worth introducing
depends on the thermal efficiency of the baseline product. Might have been
15%.

 

>They do not mentioned anything about the prosessing of the biomass into
charcoal will release greenhouse emissions and loose about 50-60% of the
energy content in the fuel.

 

I think the assumption is that people involved in the stove business already
know how charcoal is made.

 

Regards

Crispin

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