Kon-Tiki Kiln: Difference between revisions
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Excellent open source pyrolysis kiln from Switzerland for [[biochar]] production with a very clean burn. Some implements are already available and everything is open source. | Excellent open source pyrolysis kiln from Switzerland for [[biochar]] production with a very clean burn. Some implements are already available and everything is open source. | ||
Ithaka Institut | Ithaka Institut writes: ''While most of the [[biochar]] produced during the last 5000 years was produced with open fire, modern pyrolysis suppresses the fire. The separation of the carbonisation and the flaming of the pyrolysis gases make pyrolysis technology prone to failure and expensive which is one of the reasons why the biochar technology did not have yet it's breakthrough. The Kon-Tiki flame curtain kiln re-connects biochar making to the ancient wisdom and craft of fire making and combines it with smart design based on modern thermodynamics to produce high quality char with low emissions.'' | ||
My (Rasmus) opinion: these types of open-burn kilns appear to have some advantages over those "barrel-in-a-barrel" retorts that were advocated in the past | My (Rasmus) opinion: these types of open-burn kilns appear to have some advantages over those "barrel-in-a-barrel" retorts that were advocated in the past. This kiln does away with the internal metal barrier which is costly, corrodes easily and is labor-intensive to produce. The Kon-Tiki kiln tilts when the burn is complete, so that the [[biochar]] can be emptied out easily for further use. The char produced with open burn kilns may be of higher quality, because volatiles and tars can evaporate more easily. | ||
==Video== | ==Video== | ||
Revision as of 16:16, 19 May 2016
Excellent open source pyrolysis kiln from Switzerland for biochar production with a very clean burn. Some implements are already available and everything is open source.
Ithaka Institut writes: While most of the biochar produced during the last 5000 years was produced with open fire, modern pyrolysis suppresses the fire. The separation of the carbonisation and the flaming of the pyrolysis gases make pyrolysis technology prone to failure and expensive which is one of the reasons why the biochar technology did not have yet it's breakthrough. The Kon-Tiki flame curtain kiln re-connects biochar making to the ancient wisdom and craft of fire making and combines it with smart design based on modern thermodynamics to produce high quality char with low emissions.
My (Rasmus) opinion: these types of open-burn kilns appear to have some advantages over those "barrel-in-a-barrel" retorts that were advocated in the past. This kiln does away with the internal metal barrier which is costly, corrodes easily and is labor-intensive to produce. The Kon-Tiki kiln tilts when the burn is complete, so that the biochar can be emptied out easily for further use. The char produced with open burn kilns may be of higher quality, because volatiles and tars can evaporate more easily.
Video
Links
- "Kon-Tiki - the democratization of biochar production" (The Biochar Jourrnal) (read this! - internal copy here)
- More videos from Ithaka Institut
- Ithaka Inst.: "Download the presentation of the Kon-Tiki technology" (.pdf)
- "Charmaking in the Himalayas" (The Biochar Journal) - has picture of full-scale “flat pack” 1000 liter Kon-Tiki