Thermal Wrap and Cooling Tubes
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In a humid climate such as the Midwest, the cooling tubes would be perforated at their bottoms and placed on gravel when buried.
This allows the hot, humid air intake to enter and cool off, condense, and then drip down the sidewalls through the perforations and into the gravel and earth.
The air intake is accomplished via solar-powered fans. Cheap, efficient, almost-free, green air conditioning.
imau2ber 2 months ago
@imau2ber Interesting suggestion, makes a lot of sense, even the way we do it without perforating, the water still runs out due to the tubes being set on an upward angle into the house. Two thoughts:
1) Why use solar fans for airflow? Why not use the greenhouse convection engine? Super powerful and completely free.
2) Note that hot temps with high humidity, I have seen the cooling tubes to very little cooling at all.
offthegridbuild 1 month ago
Looks awesome. I wonder if people build on a south facing hillside as mentioned in vol. 1 can now put in the cooling tubes. I wonder if the tubes could swing around east of west in that case instead of on flat land. At the right time I hope to build my own earthship in the near future.
bvonmoss 9 months ago
@bvonmoss It would be hard to retrofit an existing Earthship with cooling tubes because you'd have to break through the tirewall, but you could get a little creative and run them underground then come up along side the north wall and enter near the roof. Good luck!
offthegridbuild 9 months ago
@bvonmoss You would have to do some research of air flow. It's a tricky thing, nothing like water flow. Everytime you have a bend in your pipe you but you airflow down significantly. But it is possible. I have heard of bends going upwards to escape the berm vertically.
offthegridbuild 1 month ago