Impact mechanism of rhombus module on plume abatement and water saving of mechanical draft wet cooling tower

The wet cooling tower usually causes a large amount of water resource waste and generates visible plumes. To solve this problem, a new mechanical draft wet cooling tower with air channels and rhombus modules is proposed. The dry channel and wet channel are staggered in the rhombus module. A hot experiment of the cooling tower is constructed to analyze plume, water saving, and cooling performance. The main experiment variables include the dry bulb temperature, relative humidity, circulating water flow rate, circulating water temperature, crosswind velocity, and crosswind angle. Results show that the cooling tower with the rhombus module does not produce plume under studied conditions. With the increase of the dry bulb temperature, relative humidity, circulating water flow rate, and circulating water temperature, the water saving amount and rate are increased with the maximum value of 0.073 L/min and 24.2 %. As crosswind velocity rises, the water saving amount and rate are increased under the crosswind angle of 0 degrees, and those are decreased under 90 degrees and 180 degrees. The water saving amount and rate can maximum reach 0.060 L/min and 21.2 % under crosswind. Meanwhile, the water temperature drop is decreased by 1.3 degrees C under windless and 1.2 degrees C under crosswind on average.