Comment on Negative electricity prices registered in nearly all European energy markets
alberttcone@sh.itjust.works 8 months agoThat’s 17g or 17cc per cubic metre, not 17 litres!
In dry countries the relative humidity can be low - sub 40% is common. That said, the absolute water carrying capacity increases rapidly with temperature, so at 40C, the saturation mass is more like 50g/m3 and at 40%RH it still carries more water than 100%RH air at 20C.
taladar@sh.itjust.works 8 months ago
You are correct, I got the wrong numbers. But with your numbers of course it makes even less sense.
alberttcone@sh.itjust.works 8 months ago
You are right that you need to dehumidify a large volume of air (like, more than 150 cubic metres) to get enough water for a person, in a rationing scenario. That isn’t necessarily a huge problem; fans can move large volumes of air quite efficiently and dehumidifiers work more efficiently at higher temperatures, but your main point that it isn’t scalable on a population level is definitely true - it’s something you can do for off grid or survival situations, but not easily for domestic water supply.