I never understood why a lifeboat wouldn’t have a water desalination system to desalinate sea water
a shallow amount of salt water over a black surface in the sun would evaporate quickly... have a collector to grab the steam and condense. it would also double as a solar collector for electricity. of course, this woukd only work in bright sunny areas
of course, if you could generate enough power, you could desalinate using electricity
Actually you just need an anode because the seawater itself is the electrolyte. Not much current there but -
I never understood why a lifeboat wouldn’t have a water desalination system to desalinate sea water
a shallow amount of salt water over a black surface in the sun would evaporate quickly... have a collector to grab the steam and condense. it would also double as a solar collector for electricity. of course, this woukd only work in bright sunny areas
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I took a water survival course many years ago and the life rafts did have such a device. They were inflatable and used evaporation from the sun.
And I never understood why lifeboats don't have built-in short-wave radios, so that the survivors could radio for help.
And a thousand-gallon tank of fresh water. Then the survivors wouldn't need a desalination plant.
And...
Regards,
You should look up "solar still". There are versions suitable for lifeboat use.
A young man not too long ago survived many weeks in a raft, I think it was, on the Atlantic. He had several such stills and they saved his life.
The making of a home version is on my "to do" list as something every self-reliant person should know how to do.
“I never understood why a lifeboat wouldn’t have a water desalination system to desalinate sea water”
Because they would rather put another survivor in the space it would take up.