Experimental study of counter-flow dew point indirect evaporative coolers

Establishes an experimental system of counter-flow dew point indirect evaporative coolers. Tests the outlet air temperature of the cooler at different environmental conditions (temperature and relative humidity), inlet air velocities and cooling water temperatures. The results show that the outlet temperature increases with the increase of environment temperature, relative humidity, inlet air velocity and cooling water temperature. The difference between outlet air temperature and wet-bulb temperature is high due to the factors of inlet energy loss, uneven liquid distribution and core processing accuracy.