1987年夏天，在亚利桑那州斯科茨代尔的一个住宅中对两级蒸发冷却系统的性能进行了监测。对两个不同时期进行了监测。首先，该装置作为单级直接蒸发冷却器运行，产生平均74%的湿球沉降。在第二个阶段，对unff作为两级蒸发冷却器的全容量进行了测试。第一阶段，即间接蒸发冷却过程，平均达到湿球沉降的54%。直接蒸发冷却的第二阶段产生了平均88%的湿球沉降。一般来说，供应干球空气的温度低于外部空气的湿球温度。记录的最高室内温度只有85℃。7°F，平均温度为79.5°F。通过使用室外干球和湿球温度作为自变量，得出预测送风温度的回归模型。 引文:研讨会，ASHRAE交易，第95卷，pt。1989年，芝加哥

The performance of a two-stage evaporative cooling system was monitored in a residence in Scottsdale, AZ, in the summer of 1987. Two separate periods were monitored. In the first, the unit was operated as a singlestage, direct evaporative cooler, yielding an average 74 % of the wet-bulb depression. During the second period, the unff’s full capacity as a two-stagevaporative cooler was tested. The first stage, the indirect evaporative cooling process, reached an average 54% of the wet-bulb depression. The second stage of direct evaporative cooling yielded an average 88% of the wet-bulb depression. In general, the supply dry-bulb air temperature was below the wet-bulb temperature of the outside air. The maximum indoor temperature recorded was only 85. 7°F, with an average temperature of 79.5°F. Regression models predicting supply air temperatures were derived by using outdoor dry-bulb and wet-bulb temperatures as independent variables.