APPROTECH

Mabaga Charcoal and Maliyab Fuelwood Stoves
Approtech Asia, Philippines

Approtech offers the Philippine versions of the Cambodia New Lao Bucket (Mabaga Kalan) cahrcaol stove and the Sri Lankan Anagi (Maliyab) fuelwood Stoves. The new Lao Bucket was developed by GERES-Cambodia and is approved for carbon credit projects. See brochure attached.

See

Geres video -

http://www.afd.fr/jahia/Jahia/site/afd/lang/fr/Video_Cambodge_carbone

and Approtech

www.approtech.org

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 TLUD 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 TLUD 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

Continuous-Flow Rice Husk Gasifier for Small-Scale Thermal Applications
Alexis T. Belonio, Appropriate Technology Center, Central Philippines University, Iloilo City, Philippines, November 11, 2006

Super Turbo Rice Husk Quasi Gasifier Stove
Alexis T. Belonio, Appropriate Technology Center (APPROTECH), Central Philippine University, Ioilo City, Philippines October 30, 2006

Select images to enlage.

Rice Husk Quasi Gasifier Stove with Center-in Steam Injector for Small-Scale Processing Industry
Alexis Belonio, Central Philippine University Iloilo City, Philippines, October 15, 2006