Ben: I don’t know the precise physics explanation, but an evaporative cooling system just take out the heat because that’s the energy needed to turn water into vapor. That energy is stored in the vapor and is released when it condensates and return to liquid state. It’s just the same as in a phase change cooling loop, where cold is generated at the evaporator, and heat is released at the condenser. Only difference is that here you forget about the condensation part, and dispose off the coolant in its vapor state; and refill it with liquid one. You just give Mother Nature the job of the condensation stage.
Volenti: How much water evaporates daily that setup? I bet that several liters a day
And how did you solder the vertical pipes? I don’t see the tees.
Very efficient design! You don’t waste pump power with a big height.
OT: Ben, when I first read the forum in the morning, the radius thread was dead on the 10K reads mark.