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We showed an extremely simple, low-tech method for getting water with the
article about the
Watercone earlier this month. But while this may be suitable for
small, personal uses, getting enough water for a community or for crops in
a dry location is more difficult. The pump windmill was a ubiquitous
sight on American farms throughout the west in the last century. And an
Australian inventor's device looks to update the idea, but draws the water
from the air, rather than from in the ground.
The Max Water uses the power of incoming wind to cool the air and then collects the water that condenses. In theory, a small 4 meter square (43.1 sq. ft.) unit could provide an average of 6,300 liters (1,664 gallons) per day. And the inventor hopes that larger units could be used for irrigation purposes in places where rainfall is insufficient.
"At 30 degrees C with relative humidity of 60% air contains approximately 18 grams per cubic meter of water. If the air can be cooled to 5 degrees C, at which temperature the air can only contain approximately 8 grams per cubic meter, about 10 grams of water will condense out of the air as fog or droplets."
Even in arid regions, there is moisture in the air. Using wind turbines
to provide the power for the system seems an elegant approach to providing
the power needed to run the refrigeration systems to make this work.
There is some
question as to whether or not this system will realistically be able to
extract as much water from the air as its inventor claims. If the
implementation bears out the theory, this could be a benefit for dry
regions across the globe.
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written by jacoby, August 25, 2007
In Europe, we have not the same interest towards this type of innovative technology.Although, our climate is really suitable for that.
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written by Benjamin Taheny, August 28, 2007
In that respect, I feel it would be advisable to build lakes or other large bodies of water in a series leading towards desert regions - providing more evaporative capacity to be dropped and reducing the areas of deserts.
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written by Dan Rhys, September 13, 2007
Back of the envelope calculation using state of the art OTS (off the shelf) technology:
4.9 m2 wind turbine = 1000 watts http://www.ecofirst.net/wind-turbines.asp
dehumidifier based water extraction unit 1000 watts = 1 litre per hour
http://www.gadgetgrid.com/2007...-thin-air/
= 24 litres per day
which is a lot less than 6,300 litres per day!
This guy is crazy, he expects to dehumidify 1.44 million m3 of air per day - ridiculous!
8)
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written by mario, March 19, 2008
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written by Uncle B, September 27, 2008
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written by Johannes Tuxworth, March 04, 2009
In an honesty, just go with the original and the best? www.konia.com.au is an Australian company that pioneered Water from Air back in the 70's and 80's. They have been doing it forever and they are pretty well know within the industry.
I tried to save dollars and went with a competitor which subsequently went bankrupt and when my machine caved in (within the warranty period) I was left high and dry. Apparently there are a few pirates out there but my second machine has been a Konia and its just awesome. The flexbility of have the AWG outside and the dispenser is so convenient and just makes sense. I dont know why anyone else does not offer this setup.....?
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After clicking through to the Max Water website, I have to wonder if they are wise to pitch this to arid countries...arid countries by definition have low humidity which means relative humidity is also low. Still the arid countries need water the most.