Improved Biomass Cooking Stoves

Charcoal
Cookstove.net

Charcoal has a specific combustion value on the average of 28,900 kJ/kg. Its density is strongly dependent on the wood used in its production. An average value is about 400 kg/m3 according to Earl (1975).

"Use an Improved Charcoal Stove!" by Shima Sago, the Assistant Coordinator at Tanzania Traditional Energy Development Organisation, made this promotion story.

Center Fire Stove 01 Cooking Test
Lanny Henson, June 12, 2006

In the last cooking test, the Center Fire Stove 01 needed only 750
grams/1.65 lb of pine chips to cook 8 pounds/3.63 kilograms dry weight of pintos. That is 14 liters of volume with water or 104 servings-35 gr/ 1/2 cup cooked volume (1/4 cup dry weight) servings.

CO Emissions from a Charcoal Rocket Stove
Dean Still, Aprovecho Research Center, June 12, 2006

CO Emissions From a Charcoal Rocket Stove

Crispin Pemberton-Pigott, New Dawn Engineering, Swaziland, June 12, 2006

3 Laterit and Charcoal Dust

Dear Friends

I fired two of the rings today for a brief time, perhaps 3 hours at temperature. No particular care was taken regarding the slow initial temperature rise.

Pema Pot Skit
Jigme Rangdrol June 10, 2006

Pema Pot Skirt

There seems to be actual agreement that pot skirts make combustion stoves better.
It is clear however that the bulk of deployed stoves do not have pot skirts.
Therefore an inexpensive pot skirt that could be made in the third and fourth world for those deployed stoves would have some usefulness.

Heat Losses in a Cook Pot at Constant Temperature (pdf)
Alan Berick, Aprovecho June 10, 2006

Summer 2006 CEDESOL Testing Procedures (pdf)
Clayton Rohman & Zach Steffens
ETHOS volunteers, CEDESOL, Bolivia June 8, 2006

Here is the first report filed by the CEDESOL ETHOS team. This is based

The Sprocket Rocket (pdf) (Uganda)
Ken Goyer June 4, 2006

Ken Goyer describes the "sprocket rocket" charcoal stove and its use in Uganda.

This is a bicycle sprocket. I was visiting a camp near Lira and this woman came along holding this sprocket. She said that she was planning to make a Sprocket Rocket and that she had paid 1000 shillings (about 54 cents) for it.

Stainless Steel Temperatures and Strength (pdf)
Dean Still Aprovecho Research Center, June 2006