[Stoves] Particles and particle types (was Charcoal MakingStove)

[Paul S. Anderson]

Quoting Dean Still <dstill at epud.net>:   (Much snipped)
>
> I REALLY HAVE NO IDEA HOW CHARCOAL MAKING STOVES WORK BUT THEY CAN BURN
> CLEANLY>
<<<Snipped>>>
> I'LL BRING A CHARCOAL MAKING STOVE TO ETHOS. TO ME IT BURNS FRESH, DRY WOOD
> WITH A LAZY, RED FLAME. YES, IT DOES LOOK LIKE CHARCOAL BURNING BUT IT IS
> BURNING WOOD.

Dear All,

My comment is for clarification of overlapping terminology.

In my opinion, whenever Dean writes "charcoal making stove" he is referring to
what has been referred to for the past year or more as a Top-Lit UpDraft
(T-LUD) pyrolytic gasifier.  He has cited the Reed-Larson 1996 academic paper
as his starting point for the "charcoal making stoves".  If he chooses to
propose "charcoal making stove" as a different name for something that has a
recognized name as "top-lit updraft gasifier", that is fine with me.  But if
so, he needs to be clear about his intentions and acknowledge that Tom Reed is
the originator of these pyrolytic gasification devices, regardless of 
what they
are called.

I and others will look at whatever charcoal making stove he brings to 
ETHOS and
clearly state the ways that it is or is not a T-LUD.  I will also demonstrate
again how such stoves have be constructed for the past few years to produce
vigorous flames with various colors.

I am trying very hard to be extremely positive:  It is wonderful that 
someone at
Aprovecho has taken a serious interest in what Tom Reed conceptualized 
and first
made operational 21 years ago, that is, the CONTROLLED and useful pyrolytic
gasification in a top ignited up-draft device that is small enough for
residential use.  Yes, it makes charcoal, but only if the user intentionally
takes action to remove the charcoal after pyrolysis is completed.  
Furthermore,
that charcoal is primarily a by-product or at best a valuable 
co-product to the
useful thermal energy derived from combustion of the pyrolytic gases.  
To focus
on the charcoal-making ability is to downplay the primary advantages of the
T-LUD stoves.

Respectfully submitted,

Paul
-- 
Paul S. Anderson, Ph.D., Geography professor - Emeritus
Telephone:  USA-309-452-7072 (residence and office)
Internet site:  www.ilstu.edu/~psanders
For my gasifier stoves info, go to:
http://bioenergylists.org/contributors#Paul_Anderson





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