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FormulaNova said..
Macro, this is another one of your ideas. Good on you.
But, where does the salt go? Is it clogging the misting tubes? Is it sprayed out in the mist and drops to the ground? Does it carry with the mist and settle on whatever is in the way? Does it impact the formation of water vapor/cloud?
I know, so many questions, but unless you have done a trial with seawater, what is the validity of this approach.
You are absolutely right. This salt could be our another precious resource. Evaporated salt is very popular commodity that we could then sell. This is mix of very precious minerals and we don't need to wait another 10 millions of years to create deposit that we could mine later.Maybe thanks to this left over- we could fund whole projects to recover money ? Lets also remember that evaporating water takes a lot of heat / energy . I could imagine that even 1 km long trial spray line made for testing purposed could create significant microclimate change in area.At the mid day there is 1 GigaWatts of sun energy falling onto 1 square km of land. Now we could take all this energy back and make good use. we need to find out exact amount of energy and water now needed for our pumps to deliver and spray this sea water.
Now we could do simple calculation how many liters of water do we need for 1kn2 to complete disperse this energy.
Lets take 2500kJ/ to evaporate 1 liter
and 6 GWatts hours per 1km - convert this into energy in J.
Done.
Additionally we could divert some of the moist air to condensing tunel to produce clean drinking water. Instead of expensive to build and maintain desalination plants, that relay on osmosis and membranes, filters our system is completely solar powered , low maintenance low cost. Could supply drinking water for whole city at almost no cost.
My brief calculation suggest that utilizing 1 square km of land and sun power we could produce
8,800 tonnes of clean water - or evaporate and release into air every day!that is 8.8 mln of liters of clean water ! If ever person do drink 3 liters a day that means we could sustain almost 3 mln people providing them all drinking water they need.