Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Study on the Counterflow Regenerative Evaporative Cooler with Finned Channels

대향류 핀삽입형 재생증발식 냉방기 연구

  • Choi, Bong-Su (Graduate School, KyungHee University) ;
  • Hong, Hi-Ki (School of Mechanical and Industrial System Engineering, KyungHee University) ;
  • Lee, Dae-Young (Korea Institute of Science and Technology)
  • 최봉수 (경희대학교 대학원) ;
  • 홍희기 (경희대학교 기계산업시스템공학부) ;
  • 이대영 (한국과학기술연구원 에너지메카닉스연구센터)
  • Published : 2008.07.10
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Abstract

The regenerative evaporative cooler(REC) is to cool 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 regenerative evaporative cooler, the compactness of the system is also a very important factor to be considered. In this respect, 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 cooler can be reduced to 1/8 by adopting the finned channel type as compared to that of the flat plate type.

Keywords

References

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