Post by jesse on Jan 18, 2009 4:05:41 GMT -8
Hello all, this might be a bit off topic, but could be applicable to rocket heaters. I finished building a wood fired pottery kiln last year that shares some design concepts with rocket stoves. The design was based on a kiln called the 'sasukenei smokeless kiln' by a Japanese potter named M. Kusakabe. It is like an oversized Rocket with a down fed firebox called a bourry box that incorporates a grate system. The flues leading into the ware chamber are below this grate with primary air coming in above the fuel and also secondary air below. My last firing reached 2375 over a 40 hour firing. I've got a few construction pics on flickr:
www.flickr.com/photos/41125745@N00/
The object of this kiln is to produce pottery with a natural ash glaze, that is, the pots are glazed by the flyash and volatile gases from the wood burnt. The ash fuses with the clay and then melts into a glassy coating at around 2200. The pots go into the kiln unglazed and 'green' and then the action of the kiln produces the surface effects. The big difference between this and other wood fired kilns I've used is that this one hardly produces any smoke or flame from the chimney, which I attribute to the bourry box.
Now I'm thinking about applying some of the rocket concepts to other applications too- Maple syruping season is a-coming!
www.flickr.com/photos/41125745@N00/
The object of this kiln is to produce pottery with a natural ash glaze, that is, the pots are glazed by the flyash and volatile gases from the wood burnt. The ash fuses with the clay and then melts into a glassy coating at around 2200. The pots go into the kiln unglazed and 'green' and then the action of the kiln produces the surface effects. The big difference between this and other wood fired kilns I've used is that this one hardly produces any smoke or flame from the chimney, which I attribute to the bourry box.
Now I'm thinking about applying some of the rocket concepts to other applications too- Maple syruping season is a-coming!
