[Stoves] Understanding what TLUD means.... was Re: stoves and credits again

[Nolbert Muhumuza]

Doc,

Thank you for the explanations.

In the same context, how would you define a gasifier stove?
Someone my choose to call it a gasifier stove and not TLUD.

Nolbert.
On Sep 30, 2017 7:00 PM, "Paul Anderson" <psanders at ilstu.edu> wrote:

> Crispin,
>
> "TLUD" is the combustion processes associated with the Migratory Pyrolytic
> Front  (MPF). that creates the pyrolytic gases and leaves charcoal behind.
> That does not change.  The other features of a "stove device" can be and
> are diverse.  And that is where we can find all of the variations that you
> mention.
>
> If a stove COULD successfully operate with the MPF, it could be called a
> TLUD stove even if it can also be operated in other ways.
>
> But if it COULD be with the MPF, but if it is mostly NOT being used with
> the MPF, calling it a TLUD gasifier stove is misleading.
>
> [Note:  This same problem occurs with the "Rocket" combustion processes
> which (for the purists among us) should have the fuel-supporting shelf with
> air entering underneath until it comes up near the burning tips of the
> inserted fuel.   From my limited following of on-going Rocket stove designs
> and production, the shelf with associated tip-burning is often absent (by
> manufacturing or by user removal) but the name is still Rocket stove.  That
> is unfortunate, in part because the Rocket advantages are absent and should
> not be claimed by the different stove.   I do not want the TLUD
> distinctiveness to be claimed if the MPF is not an active part of the
> operation  of a stove that claims to  be a TLUD.]
>
> Example:   If you filll a TLUD-capable fuel chamber with charcoal, there
> canNOT be a MPF.   Why?   Because there is no pyrolysis.   The fuel is
> ALREADY charcoal.   That operation might be driving off some  volatiles
> that then move upward, but that is not pyrolysis.
>
> Note:  TLUD is an acronym for "Top-Lit UpDraft".   But the acronym is now
> a distincitive name in its own right.   And it is associated with the MPF
> and with dry biomass fuels.   If some other process has ignition at the top
> and has upward moving air flows, it can have any name you want to give it,
> but not the name TLUD.
>
> As a rather absurd example, if there is a "Lignin Powered Gasifier" stove,
> it should not be called an LPG stove.  That would be misleading, would be
> false, and could probably cause some law suit from the big business of
> LPG.   I doubt that LPG is a registered trademark, but misuse of those
> letters would cause trouble.
>
> So, please help to keep TLUD to mean things consistent with "woodgas" and
> "pyrolysis" and MPF.  Ify you discussing something else, then  come up with
> its own distinctive  and non-confusing name.
>
> Persistent Paul
>
>
> Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
> Email:  psanders at ilstu.edu
> Skype:   paultlud    Phone: +1-309-452-7072 <(309)%20452-7072>
> Website:  www.drtlud.com
>
> On 9/30/2017 7:56 AM, Crispin Pemberton-Pigott wrote:
>
> Dear Persistent Paul
>
>
>
> I appreciate the way in which you have stuck to the promotion of TLUD’s
> and show no signs of skacking.
>
>
>
> *>>…*That establishes the principle that TLUD‎s can burn char.
>
> >No.   The char yield is associated with some char combustion  during the
> time of the pyrolysis, but that is not the same as having the char as the
> input fuel.
>
> Well I just showed that char can be an input to a TLUD. I can burn
> charcoal *only* as an input fuel to a TLUD.  I have a set of cooking
> photos used for promotion showing a Vesto operating as a TLUD charcoal
> burner with a cooking plate in place of the pot. Charcoal stoves operate
> much better, cleaner and longer when operated in TLUD mode. TLUD was the
> standard operating method for the POCA which is a charcoal-only stove.
>
> I have replied to this in my above comments.   PSA
>
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