Aprovecho

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.

The Belizean Justa Stove
A Step by Step Construction Guide in English and Spanish
Sebastian Africano for Trees water and People, February 2009

Attached are pdf files of the guides in english and Spanish.

Click on the images below to expand, and then click on "Original" for detail.

Introducing the Aprovecho Research Center (ARC) rocket stove to the Marshall Islands
Michael N Trevor, Enemanit , Marshall Islands December 6, 2008

Cooking on Rocket Stove While Still Starting Shell Fire

Hello from the Marshall Islands, thing are progressing just slowly

I thought you might like these attached pictures. Dean Still and his crew John, Todd and Sandra along with Dr Richard Zellar on their (Aprovecho) Board really went the extra mile to help me get the stoves here to test. It took over half a year to accomplish. I complement them for the extra effort.

Initial reaction has been very positive, even right thru the roof. The best appellation was "fabulous", and others say "really good" or its almost like a kerosene stove. This thing really has potential to help people. Even the Ministry of Health has taken an interest for a public health view.

The stove being used next to a "normal" open fire from shell is really illustrative. The entire pot of eggs and potatoes for a picnic salad cooked on pieces of 2 or 3 flower spathes while the other fire was still being built.

The nearly smokeless fire is obvious. The steaming pot shows well right next to the harsh acrid shell smoke. Pollution.Junction !!!.

As for the fuel the difference in labor should be noted, Susan simply walked across the yard
picking up three "utok" from coconut spathes on the ground and lit them. Juli the young man however had to pick up and haul in a partial bad of nuts. Then they were husked, cracked and the meat cut out. Finally he spend the entire time Susan was cooking just getting his fire going,

Please note Susan is not even using the stove correctly as the pot was just big enough the the skirt fell down the outside of the stove. I believe the skirt is not going to be popular even though I carefully explained its importance and use to hold heat against the pot.

Fuel shortage is not an issue here as in some places. Right now I am working our a combination of chopped frond pieces for an XL woodgas stove and then running the midrib sections through the ARC rocket stove. The looks to be a nice usage of what is usually trash that is burned.

Sincerely yours

Michael N Trevor
Enemanit
Marshall Islands
mtrevor@ntamar.net

Stovetec http://www.stovetec.net
Aprovecho Research Center http://www.aprovecho.org

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

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

How to Make a Tin Can Rocket Stove
Larry Winiarski, Aprovecho Research Center, September 2008

Fuel Briquette Burning at Stoves Camp 2008
Rok Oblak, August 31, 2008
Briquette Burning Stove


Stove Diagram

This prototype was to check the hole of the briquette and how gasification can do a nice job. As said, starting the fire with few small sticks and then after preheating the chamber, briquettes ignite by themselves and burn throughly. You can help flames with having a stick in the hole while burning. I really liked how the briquette retained its shape after it burned out, so you could still push the next one it without preventing the draft..

But the briquette burned with the surface lit from the combustion chamber, as Larry predicted. You could literally walk away of the stove with the consistent flame going on all the time (I guess the briquettes were good quality :) The air inflow was only through the hole of the briquette.

Funny was, that even when one briquette burned out, the next one ignited and the airflow continued through the hole of the first briquette.

(Click image to enlarge in Gallery)

Stove Camp Highlights
Nordica MacCarty, Aprovecho Research Center, August 2008
Aprovecho Stove Camp
Greetings Stove Campers!

I hope you are all well, back in your corners of the world.

At long last, the summary and data from stove camp is available, including:
*An attached .pdf of the results and highlights of camp.
*All of the presentations and resources posted on our website at: http://www.aprovecho.org/web-content/publications/publications.html
*Many photos are also uploaded on picasa at http://picasaweb.google.com/aproresearch

Thanks for making Stove Camp 2008 a great success, and we hope to see you in the future!

With best wishes,

Nordica

Mrs. Nordica MacCarty
Laboratory Manager, Mechanical Engineer
Aprovecho Research Center
www.aprovecho.org
541-767-0287 Oregon, USA
nordica.maccarty@gmail.com

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.