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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Investigation on the Cooling Characteristics of a Regenerative Evaporation Water Cooler

재생증발식 수냉각기의 냉각성능 해석

  • Choi Bong-Su (Graduate School, KyungHee University) ;
  • Hong Hi-Ki (School of Mechanical and Industrial System Engineering, KyungHee University) ;
  • Lee Dae-Young (Thermal/Flow Control Research Center, Korea Institute of Science & Technology)
  • 최봉수 (경희대학교 대학원) ;
  • 홍희기 (경희대학교 기계산업시스템공학부) ;
  • 이대영 (한국과학기술연구원 열유동제어연구센터)
  • Published : 2006.05.01
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Abstract

The regenerative evaporation water cooler is devised and analysed in this study. The regenerative evaporation water cooler is composed of a sensible heat exchanger to cool the incoming air, followed by a latent heat exchanger to cool the water evaporatively with the cooled air flowing out of the sensible heat exchanger. By linearizing psychrometric characteristics, the heat and mass transfer in the regenerative evaporation water cooler is analyzed theoretically. The results show that the water can be cooled down even lower than the wet-bulb temperature of the inlet air. When the inlet air is $32^{\circ}C$ and 20% in relative humidity, and the inlet temperature of the water is $20^{\circ}C$, the regenerative evaporation water cooler provides a larger cooling capacity than the conventional evaporation water cooler if the effectiveness of the latent heat exchanger is higher than 0.6 and that of the sensible heat exchanger is higher than 0.5.

Keywords

References

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