{"id":5334,"date":"2016-10-13T15:33:25","date_gmt":"2016-10-13T10:33:25","guid":{"rendered":"http:\/\/www.cawater-info.net\/all_about_water\/en\/?p=5334"},"modified":"2016-10-14T16:08:24","modified_gmt":"2016-10-14T11:08:24","slug":"this-water-bottle-refills-itself-from-moisture-in-the-air","status":"publish","type":"post","link":"http:\/\/www.cawater-info.net\/all_about_water\/en\/?p=5334","title":{"rendered":"This Water Bottle Refills Itself From Moisture in the Air"},"content":{"rendered":"

13 But much of that freshwater is locked up as\u00a0ice in\u00a0glaciers, ice caps and permafrost. People\u00a0get most of their water from rivers, which make up only\u00a00.49 percent\u00a0of surface freshwater. What if\u00a0we could diversify\u00a0and pull water from the air,\u00a0instead?<\/em><\/p>\n

\"002\"<\/a>The water bottle comes from Austrian industrial designer Kristof Retez\u00e1r, who wanted to make a simple, portable tool to help people where drinkable water isn’t easy to get. Engineers have long hoped\u00a0to help water-scarce regions\u00a0by achieving this goal.\u00a0The UN Department of Economic and Social Affairs reports that 1.2 billion people, around a fifth of the world’s population, live in areas where water is physically scarce. Another 1.6 live in countries where water infrastructure and storage is lacking.\u00a0<\/p>\n

“You always have a certain percentage of humidity in the air, it doesn’t matter where you are\u2014even in the desert,” Retez\u00e1r tells Denise Chow at Livescience. “That means you would always potentially be able to extract that humidity from the air.”<\/p>\n

The Fontus uses solar energy to power a small cooler or condenser that works by the so-called\u00a0Peltier effect. This condenser creates\u00a0a temperature differential drawing heat from one side of the device to the other. This leaves two chambers: one cold and the other hot. Air flows into both these chambers separately, but when air passes over the hot side, the slight cooling of that chamber causes the cold chamber to chill even more. That means that the air passing through the cold chamber rapidly\u00a0condenses like droplets on the outside of a cold glass.<\/p>\n

One version of the design, the Ryde, takes advantage of air flow on a bike, producing water as the user rides.\u00a0Hikers can use another version called the\u00a0Airo, which uses a small fan to create the air flow.<\/p>\n

In “really good” conditions, or temperatures between 86 and 104 degrees with humidity between 80 and 90 percent, the Fontus can generate half a liter of water in an hour, Chow reports for Livescience.<\/p>\n

In the future, Retez\u00e1r says the company hopes to improve that so the bottle can work in more conditions. They also may also install a carbon filter to deal with particulates in the air: Already the bottle has a basic filter to keep out bugs and dirt, but works best in the relatively pristine air of natural environments.<\/p>\n

The project was shortlisted for the 2014 James Dyson Award. Next the company hopes to launch a crowdfunding campaign and get the price of the water bottle under $100, Chow writes. It has a long way to go before it can truly\u00a0help people in water scarce areas, but innovative projects that force us to\u00a0rethink how we live always generate some excitement.<\/p>\n

Source: http:\/\/www.smithsonianmag.com\/<\/a><\/p>\n

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