An excellent report on the results of Bubble Insulation System for greenhouses. https://youtube/watch?v=_di4eTtxbHY#t=13 - from U. Vermont, USA. Commentary on results: It appears that there is some tech development to be done - appears to be a finicky system. It would be good to take their learnings and opensource them fully so others can build upon them. Id like to hear in detail - what were the issues and what is their proposed plan for addressing them. Also, a 40% reduction in heating requirement is not particularly impressive for the effort used - using about half the heat over a regular greenhouse. That is comparable to a thermal curtain - their 30% improvement over a thermal curtain seems not particularly impressive, either. The video indicates a bubble layer thickness of about 4 (minute 0:47 in video) - I would go for 12 to show impressive insulation properties - perhaps get energy savings more like 95% than 40% - meaning that you hardly have to heat at all - or could heat with as little as a small electric heater if needed. We should be looking for at least 10x improvement over a raw greenhouse. The 12 cavity would work with our sandwich of 2 6 wide modular roof panels like we used in MicroHouse 4. See roof panels - https://docs.google/a/opensourceecology.org/presentation/d/178h3umpGReoIpy-w0B-En3vlTMTmPc5Y-KCJOsHSPI8/edit#slide=id.g3b73a8ca6_0145
Posted on: Mon, 15 Dec 2014 18:45:47 +0000
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