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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study on Improvement of Performance for Perforated Type Total HEX Element

다공형 유로를 적용한 전열교환기 소자의 성능향상에 관한 연구

  • Kwak, Kyung-Min (Department of Mechanical Engineering, Yeungnam University) ;
  • Bai, Cheol-Ho (Department of Mechanical Engineering, Yeungnam University) ;
  • Kim, Jee-Yong (System Appliances Division, Samsung Electronics Co., LTD.) ;
  • Chu, Euy-Sun (System Appliances Division, Samsung Electronics Co., LTD.)
  • Published : 2007.07.10
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Abstract

The perforated type element for a heat recovery ventilation system has been studied to improve the performance. Four holes of diameter of 6mm are punched out for each flow channel to break the boundary layer development and increase the turbulence. KS cooling and heating conditions and test procedures are applied for study. The efficiencies are compared to those of the typical element with smooth surface. For cooling operations, the temperature, latent and enthalpy efficiencies increase 2.5%, 18% and 8%, respectively. For heating operations, the temperature, latent and enthalpy efficiencies increase 3%, 5% and 3.2%, respectively.

Keywords

References

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