That would make a good topic by itself, especially if anyone could toss in expected results (e.g. like the calculations in https://en.wikipedia.org/wiki/Evapora

That would make a good topic by itself, especially if anyone could toss in expected results (e.g. like the calculations in https://en.wikipedia.org/wiki/Evaporative_cooler https://en.wikipedia.org/wiki/Evaporative_cooler )