Abstract
The thermal performance of an indirect evaporative air cooler is analyzed numerically. The effects of a wide variety of parameters such as the velocities of the primary and the secondary air stream, the channel width, the inlet relative humidity, and the wettability of the plate on its thermal performance are investigated. It is shown that a smaller channel width, a lower inlet relative humidity of the secondary air stream, a higher wettability of the plate, and a higher velocity ratio of the secondary air to the primary air stream yield a higher effectiveness of the indirect evaporative air cooler. The results are useful for the design of an indirect evaporative air cooler.
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