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

[Nikhil Desai]

Ivan:

Ash from wood and charcoal was indeed used to scrub metal pots and dishware everywhere in my childhood. 

Some 22 years ago I researched for something called American Coal Ash Association for the GHG reduction potential of coal fine ash as a partial substitute for cement. 

I think cinder blocks routinely use ash. 

Cement substitution reduces CO2 emissions from combustion as well as lime. 

Gold Standard should support ash recycling. Biomass ash, like biomass air emissions, is much less polluting. 

Nikhil 


> On Oct 29, 2018, at 12:02 PM, Y. Iwan BASKORO <iwanbaskoro at gmail.com> wrote:
> 
> Yep, 
> The remaining ash is relatively small amount, they use it as abrasive to clean utensils - some just dump it at the "back" part of the house. Never heard of ash as building material. 
> 
> best,
> iwan
> 
>> On Mon, Oct 29, 2018 at 10:47 PM Nikhil Desai <pienergy2008 at gmail.com> wrote:
>> What do people do with ash? 
>> 
>> To clean utensils? To mix with building materials?
>> 
>> N
>> ------------------------------------------------------------------------
>> 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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> 
> 
> -- 
> Yohanes Iwan Baskoro
> mobile +62 81 328 430 455
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