Still

Summary of ETHOS Stove Camp, August 3-7, 2009
Dean Still and Nordica MacCarty

Forty three folks attended Stove Camp this year coming from as far away as Norway, Germany, Honduras, and Mexico. Some people were too busy making stoves to be in the official photo. Paal Wendelbo, winner of the $250 prize for most interesting development, is the white haired gentleman two spaces to Dean’s left. The theme this year constellated around health issues. You can see the presentations and results from Stove Camp by visiting http://www.aprovecho.org/lab/index.php.

Stoves Camp 2009 Group Photo

Stove Camp featured many experiments. We set up a Test Kitchen, in which stoves were tested, making posho (African corn meal mush). Particulate Matter and Carbon monoxide were recorded in both the room air and at the nose/mouth of the cook. We also used a RAD 57 from Masimo to non-invasively measure levels of CO in the cook’s blood before and after cooking. Stoves were also tested under the emissions hood, and practice WBTs were run without emissions measurements. Peter Scott and Dr. Andreatta were successful in creating an aluminum mitad with even temperatures for making injira.

See the attached report for more detail

Ashden Energy Champion Award:
http://www.ashdenawards.org/international
Aprovecho Research Center and Shengzhou Stove Manufacturer, USA/China
Packing Stoves
Making affordable, efficient stoves for the masses

The Aprovecho Research Centre in the US and Shenghou Stove Manufacturers in China have pooled their rich experience and skills to produce a cheap, robust and efficient stove for mass production to developing countries. The stoves replace dirty and polluting kerosene and open fires saving up to 50 percent of fuel wood and reducing 70 percent of dangerous emissions. SSM has sold over 60,000 stoves since 2007, producing them at a rate of 12,000 stoves a month and selling them to distributers. The main customer is Envirofit International, which markets stoves in India supported by the Shell Foundation. Other customers are in South Africa, Tanzania, Madagascar, Argentina and Chile.

Stovetec(tm) Greenfire Technology (tm)
www.stovetec.net

Plain One door
StoveTec™ introduces
GreenFire Technology™
Wood and Charcoal Stoves

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.

Introduction to Gold Standard/Carbon Credits
Dean Still, Nordica MacCarty, Aprovecho Research Center, July 23, 2008
Gold Standard

There has been a lot of interest recently in carbon credit financing for improved stove projects. Since 2006, stove organizations have begun to receive funding from carbon credits. The Gold Standard has just published a set of protocols formalizing how stove projects can prove the lowering of emissions. Large financial institutions, like Climate Care/JP Morgan, are now participating in the relatively new market.

Wood-Charcoal: Two Door Rocket Stove
Dean Still, Stoversource, May 2008

Dean Still shows the new two-door rocket stove designed by Aprovecho Research Center and being made in China.

Stoversource
http://www.stoversource.com/

Stoversource: One Door Rocket Stove

Dean Still, Stoversource, May 2008

Dean Still shows off the new one door rocket stove designed by Aprovecho Research Center and being made in China.

Stoversource
http://www.stoversource.com

Assessing Cook Stove Performance: Field and Lab Studies of Three Rocket Stoves Comparing the Open Fire and Traditional Stoves in Tamil Nadu, India on Measures of Time to Cook, Fuel Use, Total Emissions, and Indoor Air Pollution
Nordica MacCarty, Dean Still, Damon Ogle, Thomas Drouin, Aprovecho Research Center, January 2008

Design Principles for a Retained Heat Cooker
Dean Still, Aprovecho Research Center, April 20, 2008

1.) Air exchanges are more important than insulation

Making Rocket Stoves in China
Dean Still, Aprovecho Research Center, March 28, 2008

Hi Stovers!

A lot of the folks on the List saw the Rocket stoves that we are making in China at ETHOS. John Page and I just spent ten days at the factory near Shanghai. Here’s a quick update on the China project.

The big news is that the lightweight, refractory ceramic combustion chambers are now being extruded at the rate of about one thousand per day. You can imagine that John and Dean were grinning ear to ear, watching the materials being mixed three times in the big grinders. When thoroughly mixed, the clay is extruded into the combustion chamber shape, pushed by a 100HP motor, and every twenty seconds or so, another combustion chamber is ready for drying. (There are photos of all this.) Drying takes about 30 days and then firing takes place in the huge coal fired kiln, as big as a supermarket. I think that we can fire about 20,000 combustion chambers at one go. The kiln is being fired and emptied simultaneously. The clay deposit is located one kilometer from the kiln.

The cast iron stove top was adjusted; raising the pot supports two millimeters, after further emission testing in the lab showed a reduction in CO and PM with a little higher clearance.

We have the first order for a container of stoves, which is going to India. The factory has arranged for a good set up price (about $600) for the packaging. The six sided box can be printed in the local language with desired designs and logos.

We are investigating shipping costs to and duties for all countries. There are different duties for whole stoves and for stove parts. We’re going to write up our experience and send it around to everyone, bit by bit, trying to share what we learn from this project.

You can contact me for the stove catalog, questions, etc…

All Best,

Dean
Aprovecho Research Center
www.aprovecho.org
541-767-0287 Oregon, USA
dstill@epud.net

New Factory Under Construction