[Stoves] Cajun Rocket Pot
Alex English
english at kingston.net
Tue Jul 30 16:43:34 CDT 2013
As another example, I have seen the varnished pot bottom after use with
a fan assisted TLUD on low fire. At high fire there was none and that is
with dry pellets. Both had no visible emission. I felt it was excess air
and/or sneekage around the small flame that caused it. Turbulence was
high with pre-heated secondary air. Perhaps the firing range of a TLUD
can be expanded and remain minimal in "varnish", soot and CO, however I
am of the opinion that there is only one tuned sweet spot for any burner
and all other burn rates and air adjustments are a compromise unless
there is also a change in the structure of the burner. We need numbers
on the scale of the compromise.
Is varnish a good conductor?
Alex
On 30/07/2013 8:02 AM, Jonathan P Gill wrote:
> Christa,
>
> I have done that too. If the TLUD is very poorly tuned, you can get
> nasty deposits from "dry" wood pellets. I have made some very nice
> creosote from wood pellets with TLUDS that were operating at too low a
> temp and had a very poor fuel air ratio with insufficient turbulence
> in the burning gases.
>
> I find that, with proper tuning, I can achieve clean results from
> about any fuel, including freshly cut wood chips @ 40% moisture
> content. I can say this from experience.
>
> Currently, I am working in TLUD powered retorts heated from the
> bottom with gas jets coming out from the top. These are the opposites
> of TLUDS as they are Bottom Up designs. So far so good. More to come...
>
> Regards,
>
> Jock
>
> Extract CO2 from the atmosphere!
>
> On Jul 30, 2013, at 1:57 AM, CHRISTA ROTH <stoves at foodandfuel.info
> <mailto:stoves at foodandfuel.info>> wrote:
>
>> The TLUD only if you have a well processed dry predictable fuel.
>> otherwise you can coat the entire fins in a 'varnish' from condensed
>> vapors and that is no tun at all to scrub off, not even from a flat
>> bottom pot (done that...)
>> Christa (from the bush in Benin, with patchy internet access)
>>
>> Am 29.07.2013 um 23:31 schrieb "Andreatta, Dale A."
>> <dandreatta at sealimited.com <mailto:dandreatta at sealimited.com>>:
>>
>>> Yes, a TLUD would have a lot less soot. Charcoal stoves too.
>>> The message from Todd Albi mentioned a Turbopot, whose website I
>>> just checked out. It also claims fantastic results. Who knew there
>>> were all these finned pots out there?
>>> Dale
>>> *From:*Stoves [mailto:stoves-bounces at lists.bioenergylists.org
>>> <mailto:bounces at lists.bioenergylists.org>]*On Behalf Of*Tom Miles
>>> *Sent:*Sunday, July 28, 2013 2:27 PM
>>> *To:*'Discussion of biomass cooking stoves'
>>> *Subject:*Re: [Stoves] Cajun Rocket Pot
>>> Is a TLUD likely to have less soot buildup on fins?
>>> Tom
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