[Stoves] Designation of TLUD gasifier devices.
Paul Anderson
psanders at ilstu.edu
Sun Sep 20 22:58:06 CDT 2015
Dear readers,
All readers are advised that some people insist on using a valid
GASIFIER term of TLUD when referring to other types of fires because
there is ignition at the top of a fuel pile and the air flow is
upward. And they do this without regard to the GASIFIER structure that
allows the creation of the gases to be separate in time and space from
the burning (or other usage) of the created gases. The creation and
the burning of the gases can be very close, but they CAN be separated.
For example, the top flame (the secondary combustion) can be
extinguished in a TLUD gasifier (but not in just any old bucket or open
fire).
Paal Wendelbo observed the Norwegian resistance fighters having top
lighting of open campfires, and they were not using gasifier devices.
40 years later he contained that pyrolysis and gas burning processes
inside metal cylinders and had the start of what is today called TLUD
gasifiers.
Today, after 30 years of development of TLUD stoves and other true
micro-gasifiers that now have respectable recognition, it is becoming
trendy to call other things TLUDs when they are not or are mere shadows
of what is involved with gasifier stoves. There are no "terminology
police" or copyrights on TLUD. Readers need to be aware of the details
of the actual operations, regardless of what it is being called.
Readers are encouraged to use as a reference the book on
Micro-gasification.... by Christa Roth (GIZ publisher) and my article
"Micro-gasification Terminology...", both of which are available in the
Quick Picks list on my website www.drtlud.com
I did not invent TLUD gasifiers, but I did give them that name 10 years
ago. People can use the words top lit and up draft to describe other
things, but the acronym TLUD should appropriately refer to a reasonably
well defined TYPE OF GASIFIER DEVICE, most specifically as a cookstove
or char-maker. Use of that TLUD designation for other devices is a form
of mimicry and getting on a bandwagon, or worse, which is just to make
confusion.
Dr TLUD
Doc / Dr TLUD / Prof. Paul S. Anderson, PhD
Email: psanders at ilstu.edu
Skype: paultlud Phone: +1-309-452-7072
Website: www.drtlud.com
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