Jeff Jefferson wrote:
paul wheaton wrote:From Jack's link:
I think this is a great idea. I am tempted to call this a "johnson style air well"
Thats a genius Idea, I would really like to stack that with a solar chimney.
Just me and my kids, off griddin' it - follow along our shenanigans at our YouTube Uncle Dutch Farms.
Works at a residential alternative high school in the Himalayas SECMOL.org . "Back home" is Cape Cod, E Coast USA.
Rebecca Norman wrote:Location? Climate? Temperature zone? Ground water?
Just me and my kids, off griddin' it - follow along our shenanigans at our YouTube Uncle Dutch Farms.
Works at a residential alternative high school in the Himalayas SECMOL.org . "Back home" is Cape Cod, E Coast USA.
paul wheaton wrote:From Jack's link:
I think this is a great idea. I am tempted to call this a "johnson style air well"
Jocelyn Campbell wrote:Here's a new, sculptural air well design. Just one photo here. Go to A Giant Basket That Uses Condensation to Gather Drinking Water to click through the entire slideshow.
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Steve Farmer wrote:Instead of trying to take ambient air and cool it to condense the water, in the hot climates we're talking about, we find it easier to heat stuff up than to cool stuff down.
Lenn Sisson wrote:Here is an interesting design for an air well that I came across today. It includes a wind turbine to pull the air through the system.
http://shanartisan.deviantart.com/
One must be sane to think clearly, but one can think deeply and be quite insane. -- Nikola Tesla
http://shanartisan.deviantart.com/
One must be sane to think clearly, but one can think deeply and be quite insane. -- Nikola Tesla
Shan Renz wrote:Edit: PVC, definitely.
Permaculture market farming, plant breeding and perennial grains: http://jasonpadvorac.com
Vic Johanson
"I must Create a System, or be enslaved by another Man's"--William Blake
Amber Beckerson wrote:This must be where Frank Herbert got the idea for "wind tunnel moisture traps" used by the Fremen in the "Dune" books. I always wondered how possible it was for that to actually work.
Victor Johanson wrote:Looks like this operates on the same principle:
https://www.indiegogo.com/projects/fontus-the-self-filling-water-bottles#/
Steve Farmer wrote:
Victor Johanson wrote:Looks like this operates on the same principle:
https://www.indiegogo.com/projects/fontus-the-self-filling-water-bottles#/
A 100W retail peltier dehumidifier system, of which probably millions have been sold will produce 250ml (approx. a quarter of a quart) in 24 hrs
Edit - seems these units are rated at 100W max draw but consume as little as 24W, but not sure if they produce at max capacity when running lower power draw.
I am struggling to understand how the fontus system is projected to produce a few litres a day with its tiny (20W?) solar panel.
I read that initial tests were performed in the inventor's bathroom after having the hot shower running. I wonder if the inventor was collecting water droplets already condensed in the air rather than condensing water vapour in his system.
Vic Johanson
"I must Create a System, or be enslaved by another Man's"--William Blake
Community Building 2.0: ask me about drL, the rotational-mob-grazing format for human interactions.
Joshua Myrvaagnes wrote:what if in desert climates you used the extra sun you have lying around to heat the air around the air well super hot during the day
Joshua Myrvaagnes wrote:use a bunch of mirrors, or if you don't have that then something slightly shiny, and make the stone itself extra bright in color to reflect more energy/heat.) Then the day-time stone/day-time air the temperature differential is greater, increasing the condensation effect, yes?.
Joshua Myrvaagnes wrote:Also, maybe you can take advantage of just how cold the desert gets at night? ... are there things that can be used to help propel the heat out of the rocks at night to cool them more than they would?
Joshua Myrvaagnes wrote:Also, I didn't see anyone mention the ethiopian one, I forget the name of it but it's made into an art piece, uses mosquito netting or something like it as the condensing element. That seems like a pretty great air well, and got 5 gallons a day if I recall.
http://shanartisan.deviantart.com/
One must be sane to think clearly, but one can think deeply and be quite insane. -- Nikola Tesla
http://shanartisan.deviantart.com/
One must be sane to think clearly, but one can think deeply and be quite insane. -- Nikola Tesla
Community Building 2.0: ask me about drL, the rotational-mob-grazing format for human interactions.
http://shanartisan.deviantart.com/
One must be sane to think clearly, but one can think deeply and be quite insane. -- Nikola Tesla
This is one of the reasons I get excited when I see greening the desert projects work well. It is such a long term goal to take an area that gets such little rain and turn it into essentially a rainforest. Its great listening to Geoff tell stories and show successful restoration of entire ecosystems.Jennifer Wadsworth wrote:
Olivia Helmer wrote:I am also interested in building something to collect fog water. I am in California with the drought but where I live we have thick fog almost daily! in some of the forests here when the fog is thick it drips off the trees. the trees act as fog collectors. I have found this thread really fascinating and also exciting.
Geoff Lawton states in his online PDC that in drylands, you can increase your precipitation up to 80% by planting capturing condensation from trees. In order for this to work in very dry climates, one has to plant a sufficient number of trees which I take it depends on where you are. It is fascinating and thought-provoking. I think Tucson is on the right track with all their streetside stormater harvesting and all the trees they're growing with that harvested "waste" water. They'll eventually increase tree canopy coverage from 5% to 25% and will probably begin to see that condensation effect (and UHI mitigation!) for the entire city at that point.
Community Building 2.0: ask me about drL, the rotational-mob-grazing format for human interactions.
Live a little! The night is young! And we have umbrellas in our drinks! This umbrella has a tiny ad:
rocket mass heater risers: materials and design eBook
https://permies.com/w/risers-ebook
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