Comparison of configurations for a compact regenerative evaporative cooler
- Comparison of configurations for a compact regenerative evaporative cooler
- 이주현; BongSu Choi; 이대영
- regenerative evaporative cooler; evaporative cooling; Corrugated plate; finned channel
- Issue Date
- International journal of heat and mass transfer
- VOL 65, 192-198
- The regenerative evaporative cooler (REC) cools a stream of air using evaporative cooling effect without
an increase in the humidity ratio. In the regenerative evaporative cooler, the air can be cooled down to a
temperature lower than its inlet wet bulb temperature. Besides the cooling performance, for practical
application of the REC, the compactness of the system is also a very important factor to be considered.
In this study, three different configurations, i.e., the flat plate type, the corrugated plate type, and the
finned channel type are investigated and compared for the most compact configuration. The optimal
structure of each configuration is obtained individually to minimize the volume for a given effectiveness
within a limit of the pressure drop. Comparing the three optimal structures, the finned channel type is
found to give the most compact structure among the considered configurations. The volume of the regenerative
evaporative cooler can be reduced to 1/8 by adopting the finned channel type as compared to that
of a flat plate type.
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