Earlier on this blog, I posted several ideas about terminology for the cone kiln pyrolysis method. I proposed the acronym TFOD - for Top-Fed Open Draft. While this is descriptive of the process of feeding and operating the kiln, it does not really explain the pyrolysis principle utilized. And it is JAUA - Just Another Ugly Acronym.
So, after some discussion with friends at the Biochar Journal, we have converged on the terminology Flame Cap or Flame Curtain Kiln. I like Flame Cap Kiln because it best describes what I see in my kilns. The flame sits on top of the feedstock like a cap. The cap of flame excludes oxygen while applying heat.
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