[Stoves] Discussion of biomass cooking stoves <>

[Jeff Davis]

On Fri, 2009-01-02 at 11:02 +0000, andrew heggie wrote:
> With your one year coppicing cycle I think the crux will be in making
> sure the fuel is very dry, tlud stoves function mcuh better as
> charcoal producers the drier the fuel.

That's what I learned with chopped grasses. The Twister Top (vortex air)
SEEMS to help burning wet pine so far no time to test this modification
with grass. I Have not been harvesting any of the charcoal just burning
to completion.




> How are you planning to prepare the fuel? I've tied bundles of sticks
> and used them direct in a tlud stove but one problem I found was if a
> smaller stick burned through and was able to fall to the bottom, thus
> destroying the stratified descending pyrolysis front and turning the
> stove into a smoky updraught device.

I've been burning fist size and larger pine wood in the Twister Top with
good results, in regards to smoke. Just don't add too much raw fuel on
top.

It seems to be able to go from inverted down draft gasifier to
incinerator device.



Jeff








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