间接蒸发冷却（IEC）能够用很少的电力提供冷却，这有助于实现HVAC系统的净零能耗。然而，IEC仅在干燥、干燥的气候条件下表现良好。对于IEC来说，在全球炎热潮湿的气候下是可行的，添加干燥剂除湿是一种选择。本文介绍了一种使用带有干燥剂预处理部分的市售IEC模块的台式IEC组件的制造和测试。进行了测试，以熟悉装置的操作，并给出了数据。所述测试系统作为进行进一步调查的手段，功能令人满意。此外，还对一个模拟的3吨（10.6千瓦）冷却系统进行了计算，结果表明，等效的干燥剂辅助IEC系统必须能够去除15吨。 8 lb H2O/hr（7.2 kg H2O/hr），以匹配按照规定条件运行的电动蒸汽压缩冷却系统的性能。IEC的耗水量是为传统冷却系统服务的发电设施估计耗水量的两倍以上。这里记录的工作只是我们调查的开始，并讨论了进一步的研究课题和方法。需要进一步研究低维护、热效率高的干燥剂选项，以服务于IEC选项，从而在任何气候区提供舒适的冷却。引文:2018年冬季会议，伊利诺伊州芝加哥，会议论文

Indirect evaporative cooling (IEC) has the ability to deliver compfor cooling using very little electricity which could help achieve net zero energy HVAC systems. However, IEC only performs well in dry, arid climates. For IEC to be vialble in hot, humid climates globally, the addition of desiccant dehumidification is an option. This paper describes the fabrication and test of a bench tope IEC assembly using a commercially available IEC module with a desiccant pre-treatment section. Testing was done to become familiar with the operation of the unit and the data is presented. The described test system functions satisfactorally as a means to perform further investigations. Also presented are calculations of a modelled 3 ton (10.6 kW) cooling system show that an equivalent desiccant assisted IEC system must be capable of removing 15.8 lb H2O/hr (7.2 kg H2O/hr) to match the performance of an electrically driven, vapor compression cooling system operating as the stipulated conditions. Water consumption of the IEC is calculated as more than twice that of that estimated to be consumed by the electrical power generation facility serving the conventional cooling system.The work documented here is merely the beginning of our investigations, and further research topics and are disucussed. Further work needs to be done investigating low maintenance, thermally efficient desiccant options to serve the IEC option so that it may provide comfort cooling in any climate zone.