[HN Gopher] A floating solar-powered device produces clean water...
       ___________________________________________________________________
        
       A floating solar-powered device produces clean water and clean fuel
        
       Author : geox
       Score  : 19 points
       Date   : 2023-11-14 21:12 UTC (2 days ago)
        
 (HTM) web link (www.cam.ac.uk)
 (TXT) w3m dump (www.cam.ac.uk)
        
       | account-5 wrote:
       | > The device ... could be useful in resource-limited or off-grid
       | environments, since it works with any open water source and does
       | not require any outside power.
       | 
       | Or in a country where the gov privatised the water companies and
       | then these companies started dumping sewage in all the waterways
       | instead of doing there jobs, like in England.
        
       | fbdab103 wrote:
       | >...which produces green fuel with a solar-to-hydrogen efficiency
       | of 0.13 +- 0.03% and 0.95 kg m-2 h-1 of water vapour as the feed
       | for the PC and collectable purified water. This integrated system
       | maintains operational stability in seawater and other aqueous
       | waste streams for over 154 h due to the isolation of the PC from
       | contaminants in the liquid feedstock.
       | 
       | So, wildly inefficient, but if the device is cheap enough to
       | produce, could still be worthwhile where there are no other
       | options. I know there is some interest in floating solar panels,
       | which would probably be significantly more efficient (can
       | centralize the hydrogen/H2O production at a large scale
       | facility), but that struck me as introducing a host of
       | engineering problems vs finding some unused land.
        
       ___________________________________________________________________
       (page generated 2023-11-16 23:00 UTC)