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Has a vaccuum chamber ever been used for desalination? (lemmy.world)
submitted 8 months ago* (last edited 8 months ago) by CaptainMcMonkey@lemmy.world to c/askscience@lemmy.world
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I under stand that the lower the air pressure, the lower the boiling point of water. Also, some primitive desalination kits are basically evaporators.

Could you make a really big tank without a bottom and paint it black. Then, submerge it partly in the ocean . Pump the air out of the top. The water would rise up into the tank, a bit, but not all the way.

You wouldn’t need to have a perfect vacuum, just lower the air pressure enough to make boiling easier. Let the sun heat the black tank, and viola, steam.

Collect that steam from the air you are pumping out of the top of your tank, and you’ve got fresh water, right?

Edit: nevermind. Found it on google. Leaving this here to display my shame.

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[-] athos77@kbin.social 64 points 8 months ago

Leaving this here to display my shame.

Why be ashamed? You had an idea that's probably never occurred to the majority of the people on this planet, and you asked for validation. A) that's original thinking and b) that's the first steps in science: I have an idea, is it reasonable, how can I experiment with it? I think this is a fantastic post!

[-] CaptainMcMonkey@lemmy.world 44 points 8 months ago

Self depreciation is a load bearing coping mechanism. I’m not sure I can turn it off.

[-] 4am@lemm.ee 5 points 8 months ago

2meirl

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this post was submitted on 12 Jan 2024
102 points (100.0% liked)

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