[Stoves] Ulaanbaatar Air Quality

[Dean Still]

Dear Crispin,

The Chinese honey combed briquettes are also made to be stacked in cook
stoves and heating stoves. The temperatures can reach 1200C. There doesn't
seem to be enough air on top of the burn so adding secondary air helped to
burn up the CO.

As you saw, the widespread use of coal has sustained the Chinese solid fuel
cook stove industry. I hear that there are more than 2,000 cook stove
manufacturers resulting in lots of factories with the ability to transition
to wood burning cook stoves. On the other hand, India doesn't have big
factories making solid fuel stoves so China is better placed to make a
transition.

Best,

Dean


On Fri, Nov 8, 2013 at 11:13 AM, Crispin Pemberton-Pigott <
crispinpigott at gmail.com> wrote:

> Dear Dean
>
>
>
> That is interesting. I have not seen on of those igniters. I have seen
> others but there are more like BBQ lighters.
>
>
>
> The Korean multi-hole briquette burner came with tongs to set the bqs in
> such a way that air was able to pass vertically through a stack of them –
> three high. It was top-lit but didn’t have particularly good upper
> combustion giving a very consistent CO/CO2 ratio of 3.8%.
>
>
>
> It did have enough draft to work properly, but extracted too much heat
> from the heat exchanger/pipes and suffered a lot from condensation and
> corrosion problems. About 10,000 were given away by the company that sold
> fuel. The PM was very low.
>
>
>
> Regards
>
> Crispin
>
>
>
>
>
>
>
> Dear Crispin,
>
>
>
> In a honey combed briquette there are many holes. The electric lighter has
> elements in each of the holes and the briquette lights without making
> smoke. I'll bring one to ETHOS and show folks a coal stove burning without
> making smoke.
>
>
>
> Great to hear your innovations!
>
>
>
> Best,
>
>
>
> Dean
>
>
>
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