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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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The Effect of the Thermal Conductivity of a Tube and the Convective Heat Transfer on the Outer Surface of a Tube on the Energy Separation in Vortex Tubes

튜브의 열전도도와 튜브 외면에서의 대류열전달이 보텍스튜브의 에너지 분리에 미치는 영향

  • Published : 2001.09.01
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Abstract

The phenomena of energy separation in vortex tubes was investigated experimentally to see the effects of the conductivity of a tube and convective heat transfer on the outer surface of a tube. The experiment was carried out with different conductivity (pyrex, stainless steel and copper) of a tube and three kinds of convective heat transfer modes (adiabatic condition, natural convection (air) and forced convection (water) on the outer surface of a tube. the results were obtained that hot exit fluid temperature was highly affected by a change of conductivity of a tube when the outer surface was cooled by the forced convection of water. However, the cold exit temperature was little affected by heat transfer modes on the outer surface in vortex tubes.

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References

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