![]() generalized diagram of an atmospheric water generator (Creative Commons license, by Fred the Oyster) |
compiled from several sources
You may have seen ads recently for devices that claim to pull clean water from the air, making clean water possible in remote locations. Are these machines a gimmick or useful?
They do work, but you have to trade energy to get the water. Thus, most require electrical power although some come with solar panels. And, of course, the initial cost can be significant.
But, yes, Atmospheric Water Generators (AWGs) absolutely work. They draw moisture from invisible water vapor in the air, condense it into liquid, and purify it into clean, safe drinking water. Most of them work on the same principle as a dehumidifier. Ambient air is drawn through a filter, passed over a cooling coil where the water vapor condenses into liquid.
Generators for potable water then include one or more types of filter before the water is dispensed.
They are excellent for home emergency preparedness (keep the electric requirement in mind), or for providing water for a short period of time at remote locations such as a basecamp. Battery operated units are available, but the energy requirement is high.
They work best when atmospheric humidity is above 30%, and the temperature is at least a few degrees above freezing. A residential unit can produce 2 to 12 gallons of water a day, depending on conditions.
Specialty units have been developed for extreme conditions, but these advanced technologies are less available to the general public.
Prices range from a few hundred dollars to thousands- depending on quality and efficiency.
See Atmospheric Water Generators on Wikipedia
These links are checked on the date of the article. As the article ages, some links may become invalid
Go To www.getoffthecouchnews.blogspot.com for all the news
See Get Off The Couch












