Charcoal

What Factors Influence Charcoal Quality?
Tom Miles

Temperature

100C -> Wood drying 19 MJ/kg

220C -> Wood becomes brown
250-270C-> Torrefaction 28% fixed carbon, 72% volatile 23.9 MJ/kg
280C -> Wood becomes deep brown-black

Review of Technologies for the Production and Use of Charcoal
Daniel M. Kammen & Debra J. Lew March 1 2005

Renewable and Appropriate Energy Laboratory Report

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.

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

CO Emissions From a Charcoal Rocket StoveCO Emissions From a Charcoal Rocket Stove

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.

File attachments: 

Initial Improvement of a Charcoal Burning Rocket Stove (pdf)
Dean Still, Nordica MacCarty Aprovecho Research Center June 5 2006, Rev June 14

Fuel Entrance ClosedFuel Entrance Closed

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