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What are your thoughts about tech capable of extracting water from humidity? (www.youtube.com)

submitted 8 months ago by rainpizza@lemmygrad.ml to c/technology@lemmygrad.ml

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Is this type of tech a hoax or it is really thing that was not considered enough for the upcoming water crisis around the world?

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[–] rainpizza@lemmygrad.ml 5 points 8 months ago (2 children)

After checking this dude's website, it needs 475 Kwh/m3 in a desert condition which is a lot of energy.

With this in mind, using the data within this website, to achieve a daily 100 kWh electricity output, the people interested in this device will require 50 to 52 solar panels, each rated at 400 Watts. Now, if we multiply this times 5, they might 250 solar panels to deliver that kind of power.

In a hypothetic scenario, what could be done to make this practical?

[–] Sodium_nitride@lemmygrad.ml 8 points 8 months ago

Unfortunately, nothing really. The thermodynamics are just severely unfavourable. Water is an amazing coolant, by far one of the best. It takes up an insane amount of energy to vapourise. That Unfortunately also means it takes up a lot of energy to turn it back.

It would make more sense to focus on developing conventional technologies and reforestation in the Sahara. That path is a lot more viable