The Theoretical and Experimental Researches on a Kind of Dew Point Indirect Evaporative Cooler

This paper designs a novel dew point indirect evaporative cooler. An experimental system of dew point indirect evaporative cooler is built up, The experimental results indicate that temperature of the primary air and the dew point efficiency have a positive relationship with the inlet temperature and relative humidity. Generally, in order to meet the blowing air requirements, maintain the high cooling efficiency and low temperature of the outlet air, the velocity of primary air should be 3m / s and the rate of primary and secondary air should be 1.5:1. When the flux of water is 3L/min the dew point efficiency is highest. In addition, the cooling effect was less affected by the temperature of the water.