[Stoves] Burning wet wood

[Dean Still]

Hi All,

I find that pellets burn cleaner in TLUDs when at about 10% to 15% moisture
content like sticks of wood. In both cases a slower burn helps to meter the
fuel.

Best,

Dean

On Wed, Jun 12, 2013 at 12:22 PM, <rongretlarson at comcast.net> wrote:

> Crispin, list etal
>
>    This below may be true for "burning", but it has not been my experience
> for pyrolysis.  Colorado is pretty dry and I never experienced a smoke
> problem due to dryness.  I hope someone with a TLUD will "bake" some wood
> or pellets for awhile and report their results.  If a fuel dryness problem
> exists for TLUDs, it is not clear why that should be so.  During pyrolysis
> a lot of water is created through numerous chemical reactions.
>
>   Yes problems for wet wood with TLUDs.  Explicit detail is somewhere in
> this list's archives.  Andrew H is expert on fuel wetness.
>
> Ron
>
> ------------------------------
> *From: *"Crispin Pemberton-Pigott" <crispinpigott at gmail.com>
> *To: *"Discussion of biomass cooking stoves" <
> stoves at lists.bioenergylists.org>
> *Sent: *Wednesday, June 12, 2013 1:11:31 PM
> *Subject: *Re: [Stoves] Burning wet wood
>
> Dear Frank
>
>
>
> Burning very dry wood is difficult and it makes a lot of smoke. That is
> why stoves should not be evaluated with very dry wood when they are
> designed to burn ‘ordinary wood’.
>
>
>
> If you get the conditions right for the early fire they are
> double-guaranteed o be wrong for the late fire. Much better a continuous
> input of damp material.
>
>
>
> Regards
>
> Crispin
>
> ++++++
>
>
>
>
>
> *Dear Crispin, Tom and all,*
>
> * *
>
> *I would think a batch mode would be better. A continuous mode means you
> have water vapor all the time. In batch mode one would heat and find the
> gas temperature goes to 100c. Then when the water is finally burned off the
> temperature rises and you can then push the fuel forward to do what you
> want to do with the now dry wood. Not sure this happens and have not seen a
> graph of this but think this is what would happen.   *
>
> * *
>
> *Frank*
>
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