[Stoves] Short Documentary on TLUD and Biochar in Bangladesh (in Bangla)

[Nikhil Desai]

What do people do with ash?

To clean utensils? To mix with building materials?

N
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Nikhil Desai
(US +1) 202 568 5831
*Skype: nikhildesai888*



On Sun, Oct 28, 2018 at 8:25 PM Crispin Pemberton-Pigott <
crispinpigott at outlook.com> wrote:

> Dear Julien
>
> In Cambodia everyone, literally, has a char quenching pot. The moderation
> of cooking power of charcoal stoves is managed by adding or removing fuel
> using simple tongs (folded metal strip). The removed char and all final
> char is quenched by popping it into a clay pot with a flattish lid. It is
> not air tight or particularly 'gas tight' it is just a pot with a lid that
> fits well.
>
> The recovered char is used in a subsequent fire. In the case where the
> goal is to quench the char it can be done with such a vessel, if it makes
> sense.
>
> If water is easily available and a clay pot is not, then it is a better
> solution. Perhaps both are useful.
>
> Regards
> Crispin
>
>
> Hi Neil;
>
> They usually conserve the ash when they quench with water.  I don't know
> if everyone quenches with water, but they could put the char in a clay pot
> with a very tight lid.  Quenching with water is the safest, and easiest
> thing to do in their case.
>
> Biscuit tins, or metal tins of any kind are not so common in rural
> Bangladesh.  Things in tins are usually imported, and relatively speaking
> (adjusting for purchasing power parity, and exchange rates), imported goods
> are around three times more expensive than their local equivalent (were
> available).  In addition, cash incomes are lower in the countryside than
> the city, and the barter economy is more important in the countryside.
>
> If you owned a decent biscuit tin, it would be too useful for other
> purposes to dump hot char into.
>
> The cost of importing into communities with low international purchasing
> power is one of the reasons why it is important to design stoves with as
> many components made locally as possible.
>
> Cheers,
> Julien
>
>
>
> --
> Julien Winter
> Cobourg, ON, CANADA
> __________________________
>
>
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