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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Performance Simulation of a Ventilation System Adopting a Regenerative Evaporative Cooler

재생증발식 냉방기를 이용한 환기 냉방시스템의 성능해석

  • Chang, Y.S. (Dept. Advanced Fermentation Fusion Science and Technology, Kookmin University) ;
  • Lee, D.Y. (Energy Mechanics Center, Korea Institute of Science and Technology)
  • 장영수 (국민대학교 발효융합학과) ;
  • 이대영 (한국과학기술연구원 에너지메카닉스센터)
  • Received : 2010.07.08
  • Accepted : 2010.09.29
  • Published : 2011.01.10
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Abstract

Cooling load reduction was analysed of a ventilation system adopting a regenerative evaporative cooler. The regenerative evaporative cooler is a kind of indirect evaporative cooler which cools the air down to its inlet dewpoint temperature in principle without change in the humidity ratio. The regenerative evaporative cooler was found able to cool the ventilation air to $18{\sim}21^{\circ}C$ when the outdoor condition ranges $25{\sim}35^{\circ}C$ and 0.01~0.02 kg/kg. When the outdoor humidity ratio is lower than 0.018 kg/kg, the regenerative evaporative cooler was found to provide cooling performance enough to compensate the ventilation load completely and to supply additional cooling as well. Energy simulation during the summer was carried out for a typical office building with the ventilation system using the regenerative evaporative cooler. The results showed that the seasonal cooling load can be reduced by about 40% by applying the regenerative evaporative cooler as a ventilation conditioner. The reduction was found to increase as the outdoor temperature increases and the outdoor humidity ratio decreases.

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References

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