随着刚性蒸发介质的引入，现代直接蒸发式空气冷却器（EAC）现在可以在各种具有挑战性的冷却和加湿应用中提供无故障服务。刚性介质具有可预测的性能、较长的使用寿命和较高的运行速度。固有的低能耗使它们更具吸引力。在讨论这些简单设备的维护时，有必要了解整体情况:蒸发过程、水化学、控制方案和设计特征。本文将回顾蒸发冷却器的运行，包括蒸发过程、水的使用以及各种水质的相互作用。将对重要的设计特征和控制方案提出建议，以尽量减少结垢、生物污染和介质故障。对冬季加湿和夏季制冷装置的案例研究将展示大型工业用户如何为其全天候运行的冷却器开发最佳实践。 本案例研究将展示媒体生活是如何延长的，是他们之前经历的三倍多。引文:美国丹佛市ASHRAE会议论文

With the introduction of rigid evaporative media, modern direct evaporative air coolers (EAC) can now provide trouble free service in a wide range of challenging applications for both cooling and humidification. Rigid media has predicable performance, long service life and high operating velocities. The inherent low energy usage makes them even more attractive.When discussing the maintenance of these simple devices, it is necessary to look at the total picture: the evaporative process, water chemistry, control schemes and design features. This paper will review the operation of evaporative coolers including the evaporative process, water usage, and the interaction of various water qualities. Suggestions will be made for important design features and control schemes that minimize scaling, biological contamination and media failure.A case study of units used for winter humidification and summer cooling will demonstrate how a large industrial user, developed best practices for their coolers that run 24/7. This case study will show how media life has been extended more than 3 times any of their previous experiences.