5-gallon size designs
The cheap, easy way to start making your own biochar to use in soil is a 5-gallon bucket. With simple tools and minimal skills, almost anyone can convert a 5-gallon metal can into a biochar burner. This processes batches that are suitable for small garden-scale test plots. A 5-gallon bucket is also a convenient batch size suitable to test small amounts of specific types of feedstocks to evaluate their production yield and suitability for soil use.
|TLUD Stove Design
what it is, why it works
Tom Reed, Paul Anderson, Paul Wever
In burning any biomass, gases and vapors called “smoke” are driven from the solid fuel, then burned. For over 100 years, scientists knew biomass combustion is cleaner when air is well mixed with combustible gases, instead of combustion occurring in the solid fuel. Creating combustible gases separate from gas combustion is a distinct characteristic of a true “gasifier.” Practical small scale gasification (micro-gasification) was achieved in 1985 when Dr. Thomas B. Reed created a “Top-Lit Up-Draft” (TLUD) stove.
A 5-gallon bucket is also a nice size for a household cookstove. All over the earth, every day every family needs food, and at least enough energy to cook food. indoor cooking. air pollution. smokeless combustion. making bichar to improve soil fertility and increase arable land to feed more people.
Simplest design is just a 5-gallon bucket with a hole for pyrolysis gases to be expelled. Load it, seal it, toss it in a fire.
But, we can get much more sophisticated and efficient. TLUD. Dr. Tom Read, National Renewable Energy Lab in Golden, Colorado. designs. adding small fan to boost output. projects.
Dr. Hugh McLaughlin, director of biocarbon research for Alterna Biocarbon. backyard biochar-maker from a turkey broaster and Cornelius kegs for soda syrup dispensers. makes nice standard 10 kilogram batches for biochar studies and characterization.
Paul Andersen, Dr. TLUD. CHIP designs. cooking grill makes biochar instaed of burning charcoal or propane. projects.
World Stove. designs. projects.
Dr. Bashkar Reddy, India.
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