New plume-reduction design and experimental research of evaporative cooling equipment

Studies the mechanism of the plume generated in evaporative cooling equipment, designs a kind of drift eliminator which is also a partition wall type gas-gas heat exchanger. The hot and humid air is cooled down by the cold ambient air in the heat exchanger, then water vapor condenses to droplet, after the heat exchange, wet air at two sides are mixed and reach the saturation point or unsaturation point of air, thus achieves the purpose of plume-reduction. Experimental observations and analysis show that the device can eliminate plume effectively and recover moisture from hot and humid air, the heat transfer performance of cooling equipment do not decrease, and the pressure drop do not increase. Under zero fog experimental conditions, the laser transmission rate increases by 9%.