借助于一个新开发的有限差分计算机程序，该程序预测了用作间接蒸发冷却器（IEC）时热交换器的性能，分析了系统整体冷却性能的各种流量和热交换器布置。一个例子研究了在后续的IEC热交换器中使用IEC第一次通过产生的冷却干燥空气作为扫气，以提高整个系统的湿球抑制效率。第二个例子研究了在冷冻水系统中，使用IEC产生冷却水（而不是冷却空气）进行补充冷却。第三种方法涉及预测最大性能，即在冷却的干燥空气通过IEC时，将其排出，并使用该空气进入湿扫气气流，从而最终消耗约一半的原始进口干燥空气（湿空气）- 灯泡温度空气为IEC热交换器蒸发冷却流道的净化空气。还介绍了其他概念，例如使用直接蒸发冷却器对冷凝器盘管的空气进行预冷，同时冷却IEC的污水温度，以提高其效率。引文:内华达州拉斯维加斯ASHRAE会议论文

With the aid of a newly developed finite-difference computer program, that predicts the performance of heat exchangers when used as Indirect Evaporative Coolers (IEC), various flow and heat exchanger arrangements are analyzed for overall system cooling performance. One example investigates the use of cooled, dry air resulting from the first pass of an IEC for use as scavenger air in a follow-on IEC heat exchanger for the purpose of increasing the overall system wet-bulb depression efficiency. A second example investigates using an IEC to generate cooled water, as opposed to cooled air, for supplemental cooling in a chilled water system. A third involves predicting the maximum performance expected by drawing off cooled, dry air as it progresses through an IEC and using this air to feed into the wetted scavenger air flow so as to eventually consume approximately half of the original inlet, dry air as lowered wet-bulb temperature air to be scavenger air for the evaporatively cooled flow channels of the IEC heat exchanger. Other concepts are presented, such as using a direct evaporative cooler to pre-cool air for a condenser coil while simultaneously cooling the sump-water temperature of an IEC to enhance its effectiveness.