TLUD

FIVE FAN STOVES AT ETHOSⁱ STOVE CAMP 2008
Dean Still, August 9, 2008
<FIVE FAN STOVES
<Five Fan Stoves ETHOSⁱ 2008

Five fan stoves are shown here together for the first time.

The Stoves from Left:
Aprovechoⁱ Side feed - One Door Rocket< with fan powered secondary air jet.
BPⁱ Oorja< - BPⁱ India, wood pellet burning stove apparently modeled after Tom Reed woodgas stove.
Philips Wood Stove< - Fan stove based on good combustion under development since 2006<.
Tom Reed Woodgas< - Tom Reed's Top Lit Updraft stove.
Paul Anderson< - Paul's latest fan stove - one of many.

MJA Biomass Gas Stove
Alexis Belonio, July 23, 2008
<MJA Biomass Gas Stove Burning Coal

Alexis Belonio writes (edited and annotated by Paul Anderson and Tom Miles):

Attached is a picture of my latest coal gasifier stove. This
is the same basic TLUDⁱ stove I have for wood charcoal and wood chunks.

For domestic use, I use carbonized coal (or coke) as fuel instead
of the raw coal. Coal can be used for the stove, but we don't want to promote
this as a fuel since it emits poisonous gas. I would prefer to use coal for
industry application where gas can be cleaned before it is released to the
atmosphere.

I provide only a small amount of coal fuel in the gasifier stove, enough
for cooking. This mean that the power output is only small and the
metal I use is a stainless steel.

I ignite the carbonized coal by using a wood charcoal that has been soaked in
kerosene as igniter. [This is a TLUDⁱ stove, so ignition is at the top.]

[In the Belonio TLUDs, the fan only blows the primary air. The
secondary air is
pre-heated as it rises naturally between the fuel cylinder and the outer
cylinder, finally exiting into the rising flow of combustible gases.]
The smoke in the coal gasifier I have was eliminated [combusted] by mixing
preheated air with the gas generated from the reactor. I think
there is no need of [forced] mixing the secondary air by creating turbulence
with the combustible gases. Because in that case, you will need a
slightly bigger fan with enough pressure to push the air.
<MJ Biomass Gas Stove

Alexis Belonio
atbelonio@yahoo.com<

Coconut fiber Stove, Biomass Shredder and Pelletizer

Alexis Belonio, University of the Phillipines, May, 2008

<Cocopeat Pelletizer

Top Lit Updraft (TLUDⁱ) Gasifier for Carbonized Coal
by Alexis Belonio, Immanuel Ginting, Djoewito Atmowidjojo, and Bony Minang
<TLUDⁱ for Carbonized Coal

MAGH-IV woodgas T-LUD multipurpose light - stove
N. Sai Bhaskar Reddy, http://www.e-geo.org/< GEOⁱ - GEOECOLOGY ENERGY ORGANISATION December 30, 2007

TLUDⁱ Gasifier in Ashdenⁱ Award for Enterprise
Paul Anderson September 21, 2007
<Shenzhou Daxu

Summary of Stove Campⁱ 2007
Dean Still, Nordica MacCarty, Aprovechoⁱ Research Center
<Tom Miles and Paul Anderson Amaze Folks at Stoves Camp

Summary of Aprovecho’s Summer Stove Camp, 2006
By Dean Still and Nordica MacCarty, September 6, 2006

Dual-Reactor Rice Husk Gasifier for 6-Tonne Capacity Recirculating-Type Paddy Dryer<
Alexis T. Belonio, Central Philippine University, Iloilo City, Philippines August 29, 2006

<Paddy Gasifier 4

Note: Click image to enlarge

T-LUD Pellet Stove at BSNB4<
Kevin Chisholm, July 8, 2006

I have had the opportunity to attend a local event, the BSNB4 on 2 June 2006, where some impressive technology, at early stages of development, was presented. One of the presentations, a T-LUD pellet stove, burning a 25 pound bag of wood pellets in 15 minutes, had a few rough edges, but it certainly brings the T-LUD to a new height. A suitable exhaust hood would, of course, be required for safe indoor use. See picture.

<