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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Analysis of Heat Transfer and Drying Characteristics in the Dryer Using the Refraction of Radiation

적외선 굴절식 건조기에서 열전달 및 건조 특성 해석

  • Lee Kong-Hoon (Energy Systems Research Center, Korea Institute of Machinery and Materials) ;
  • Hong Yong-Ju (Energy Systems Research Center, Korea Institute of Machinery and Materials) ;
  • Kim Ook-Joong (Energy Systems Research Center, Korea Institute of Machinery and Materials)
  • 이공훈 (한국기계연구원 환경에너지기계연구본부 에너지기계연구센터) ;
  • 홍용주 (한국기계연구원 환경에너지기계연구본부 에너지기계연구센터) ;
  • 김욱중 (한국기계연구원 환경에너지기계연구본부 에너지기계연구센터)
  • Published : 2006.08.01
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Abstract

Analysis of drying characteristics has been carried out with one-dimensional model in the dryer using the principle of the refraction of radiation. The dryer is composed of hot water tank, plastic film conveyer belt, drying material, etc. The model considers the con-duction and radiation within the plastic film and drying material. The film is semitransparent to radiation and the drying material is assumed to be semitransparent or opaque to radiation. The results show that the effect of radiative transfer on the drying rate is relatively large when the thickness of drying material is small and the water temperature is high. When the material is thin, the drying rate due to conduction is also enhanced and the drying time can considerably be reduced.

Keywords

References

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