ARC E-Newsletter 4/11/25: Applications of Pulling Woodgas Through Burning Charcoal

[Aprovecho Research Center]

Applications of Pulling Woodgas Through Burning Charcoal

We experimented at SSM with a “Horizontal TLUD”

As seen above, the draft of a Rocket stove can pull woodgas horizontally through made charcoal. The tips of the sticks turn into hot charcoal.

Secondary air is pre-heated in the circular annulus before entering the fire in front (or above) of the made charcoal, as in a TLUD.

Primary air is adjusted by covering the fuel entrance. More air makes a bigger fire.

PM2.5 is dramatically reduced when conditions are well adjusted under the emissions hood: (850C for 0.2 seconds, etc.)

Recently, we have been trying the same approach in pellet and log burning biomass heating stoves.

It is so interesting to switch back and forth between heating and cooking stoves.

Solvable problems make life great!

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