Will cooling the water make an evaporative cooler colder?
It is very hot and humid here 46C (115 f) dry bulb temperature, with the wet bulb temperature 26C (80 f). We need leaving air db temp. of 28C-29C (82-85f) maximum. Can we accoplish this tempetures by cooling the cooler water before beeing supply to the wet media?
Changing the temperature of the water supply will change the leaving air temperature, but only slightly. Basically there is a lot more energy absorbed in evaporating water than raising its temperature a degree (or even 10). To change the temperature of the air significantly would require a lot of refrigeration. A better approach would be to use an indirect cooler.