[Greenbuilding] Fw: Biochar as Annual Cycle Building Dehumidifier

conservationarchitect at rockbridge.net conservationarchitect at rockbridge.net
Sun Jun 28 18:22:12 CDT 2015


My last posting on biochar was somewhat of an introduction to the subject.  

This video about charcoal in Japan shows its use as an annual cycle dehumidifier in a home.  The relevant part of 28 minute video for this aspect comes at 21:28.  Any thoughts? 4,500 kilograms of charcoal were laid in what looked like a crawl space to absorb humidity during the summer and give off humidity in the winter.  Much information was not included, like climate, size of house, thermal envelope construction, ventilation, et.  However, this application of a desiccant is relevant to our core subject of  greenbuilding.  Does anybody on list have experience using enough desiccant to absorb humidity in summer and release back in the winter inside a thermal envelope? 

https://www.youtube.com/watch?v=jiVmKC8xXJ8

Eli 
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