3 ms·
> In tests, the gel film was able to wring an astonishing amount of water out of the air. At a relative humidity of 30 percent, it could produce 13 L (3.4 gal)
by karmakaze 4y ago
> In tests, the gel film was able to wring an astonishing amount of water out of the air. At a relative humidity of 30 percent, it could produce 13 L (3.4 gal) of water per day per kilogram of gel, and even when the humidity dropped to just 15 percent – which is low, even for desert air – it could still produce more than 6 L (1.6 gal) a day per kilogram.
This could also be really good as a passive dehumidifier for humid air, especially in some of those summer months.
- lacikawiz 4y agoI was thinking the same. As humanly intolerable wet-bulb temperatures are getting more and more common, this could provide a relief for those living under such conditions who can't afford air conditioning. Also, it would be good to know what is the energy requirement to "wring" this gel and get the water out of it. If that is high then it wouldn't be a good solution to be used as a cheap de-humidifier.
- culopatin 4y agoMy thoughts exactly. We could run AC at higher temps if we could remove more humidity in the air and change the “feels like” instead. I wonder if we could scale this enough that we could change the environment around us to be less humid in demand (probably as crazy to think back in the day that we would pave so much land around the world with asphalt)