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 The Heat Transfer Performance of Evaporator Heat Transfer Tube for Absorption Chiller

흡수식 냉온수기 증발기용 전열관의 전열성능에 관한 연구

  • Kwon, Oh-Kyung (Energy System Technology Center, Korea Institute of Industrial Technology) ;
  • Cha, Dong-An (Energy System Technology Center, Korea Institute of Industrial Technology) ;
  • Yun, Jae-Ho (Energy System Technology Center, Korea Institute of Industrial Technology) ;
  • Kim, Hyo-Sang (HVAC System, Samjungtech)
  • Published : 2009.04.10
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Abstract

The objectives of this paper are to measure the heat transfer and pressure drop of the heat transfer tube for an evaporator of absorption system applications. Five types of heat transfer tubes with different shape and heat transfer area are tested in the present experiment. Heat transfer and pressure drop performance of heat transfer tubes are measured in various operating conditions, and compared each other. The results show that the heat transfer coefficient of thermoexcel notch tube increases about 79.6% and 45.3% at the film Reynolds number 69.7 compared with that of bare tube and low fin tube, respectively. The thermoexcel notch tube is show the best performance considering pressure drop and heat transfer coefficient.

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References

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