Gasifier, Emissions

Envirofit and BP Stoves
Tom Reed, www.woodgas.com, August 29, 2008
Envirofit and BP Stoves

On Fri, Aug 29, 2008 at 6:38 AM, Thomas Reed wrote:
Dear Stovers:

I am attaching [the image above]that may be of interest to the stovers.

Here is an unsolicited commentary on our new XL WoodGas Stove, available at

http://www.woodgas.com/bookstore.htm
Woodgas stove
along with our gasification books.

We have recently learned that BP is manufacturing a VERY similar stove
and selling them (only in India) in their equivalent of Walmart. I hear
they have already sold 100,000. Sounds like we are well on the way to
getting a "Billion Improved Stoves" out to the developing world.

If you cover the combustion air holes with aluminum flashing or sheet
metal screws the stove also makes a good gasifier.

Onward,

TOM REED

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

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

The Stoves from Left:
Aprovecho Side feed - One Door Rocket with fan powered secondary air jet.
BP Oorja - BP 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 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

Technology Packages: Screw-press briquetting machines and briquette-fired stoves
S.C. Bhattacharya, Coordinator RETs in Asia, 1997-2004, April 5, 2008

RET Asia Briquetting

Coconut fiber Stove, Biomass Shredder and Pelletizer

Alexis Belonio, University of the Phillipines, May, 2008

Cocopeat Pelletizer

Testing Results of the Ecocina Cooking Stove from El Salvador
Nordica MacCarty, Aprovecho Research Center, March 5, 2008
Nancy Hughes, Stove Team International, April 5, 2008
La Disminuicion de las Emanaciones de Humo

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

MAGH-CM1 T-LUD WOODGAS STOVE - COMMON MANS' LOW COST STOVE
N. Sai Bhaskar Reddy, Geo, January 2, 2008

MAGH-CM1 T-LUD WOODGAS STOVE

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

AVAN STOVE - WOODGAS AND ROCKET STOVE PRINCIPLES
N. Sai Bhaskar Reddy,GEO GEOECOLOGY ENERGY ORGANISATION, December 30, 2007
Avan (Earth) Stove
Avan (Earth) Stove http://e-avanstove.blogspot.com/ has the features of both Rocket stove and Woodgas stove. It is made up of 25 nos of ordinary bricks, four bricks with slits, one piece of flat tile, one steel grate 7x7 inches and Clay mixed with cow dung. The approximate cost of construction is $ 2 (USD). All types of biomass can be used as fuel (Sticks / twigs / chips of wood / dry leaves / grass / saw dust / cow dung cakes / paddy husk etc.) and advantage of gravity is used for easy and semi-automatic feeding. Designed by Dr. N. Sai Bhaskar Reddy, GEO -Geoecology Energy Organisation http://www.e-geo.org declared as Creative Commons.