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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Numerical Analysis of A Compressor Type of Dehumidifier : (II) Heat Transfer

압축식 제습기에 대한 수치해석 연구 : (II) 열전달

  • Duong, Xuan Quang (Department of Mechanical Engineering, Sejong University) ;
  • Nguyen, Huy Hai (Department of Mechanical Engineering, Sejong University) ;
  • Kim, Kyu-Mok (Department of Mechanical Engineering, Sejong University) ;
  • Chung, Jae Dong (Department of Mechanical Engineering, Sejong University)
  • ;
  • ;
  • 김규목 (세종대학교 기계공학과) ;
  • 정재동 (세종대학교 기계공학과)
  • Received : 2017.11.23
  • Accepted : 2017.12.18
  • Published : 2018.02.10
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Abstract

A numerical analysis of a compressor dehumidifier has been conducted focusing on the air side heat transfer, which is a part of a series research on the dehumidifier. The moving reference frame was applied to the fan modeling, and the porous model was used for the evaporator and condenser modeling. Curve fitting obtained the inertial and viscous resistances parameters to the results of the physical model of the unit cell with actual shape of a fin tube. The porous model was validated within a reasonable computation time for the range of practical inlet velocity of a dehumidifier. A parametric study has been conducted for fin number, fan speed (i.e., air flow rate), and evaporator/condenser tube arrangement. ANOVA analysis showed the dependency of each parameter on the velocity and temperature uniformity, which are desirable for high performance of the dehumidifier.

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References

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