[HN Gopher] Drinkable water extracted with solar-powered desalin...
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       Drinkable water extracted with solar-powered desalination system
        
       Author : Gys
       Score  : 16 points
       Date   : 2021-04-29 15:57 UTC (7 hours ago)
        
 (HTM) web link (eandt.theiet.org)
 (TXT) w3m dump (eandt.theiet.org)
        
       | failwhaleshark wrote:
       | I was initially afraid this was going to be a solar self-filling
       | water bottle KS. [0]
       | 
       | So, it's basically a porous mirror of the tried-and-true
       | emergency solar water collector design. It seems legitimately
       | legit.
       | 
       | I wonder if an extremely dark material (nanotube applique[1]) on
       | a porous material would be able to process water faster?
       | 
       | The trillion dollar question is: How much material do you need to
       | generate enough fresh water for an average human? And, can it be
       | made more durable than a diaper?
       | 
       | 0. https://youtu.be/aPvXnmBIO7o
       | 
       | 1. https://pubs.acs.org/doi/10.1021/acsami.9b08290
        
       | Gys wrote:
       | I think it refers to this research:
       | https://aip.scitation.org/doi/10.1063/5.0047390
        
       | psadri wrote:
       | I looked into this space. The major problem with the evaporative
       | approach is that takes way too much energy. Reverse osmosis is
       | ~50x more efficient. The best way to get fresh water is to use
       | solar panels to generate electricity and use it for reverse
       | osmosis.
       | 
       | - 540kcal/liter Evaporate
       | 
       | - ~10kcal/liter RO
        
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       (page generated 2021-04-29 23:02 UTC)