The research on plume abatement and water saving of mechanical draft wet cooling tower based on the rectangle module

Abstract

To realize plume abatement and water saving of mechanical draft wet cooling tower (MCT), a rectangular module with plume abatement and water saving performance is proposed in this study. The plume, water saving, and thermal performance of MCT under different the environmental parameters, circulating water parameters, and crosswind conditions are analyzed. The result shows that, with the increase of relative humidity, circulating water temperature, and circulating water flow rate, the probability of plume generated increases. When the dry-bulb temperature increases, the probability of plume generated decreases. With the crosswind velocity increasing, the probability of plume generated decreases under the crosswind angle of 0°, and that increases under the crosswind angle of 90° and 180°. After using the rectangular module, the variation range of water saving amount is from 0.018 to 0.046 L/min, and the water saving rate is 4.3% ⁓ 16.2%. The plume can be abated, and the outlet water temperature is increased by about 2 °C in this study.