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An experimental study on evaporation-condensation heat transfer in brazed plate heat exchanger using refrigerant 410A with flow direction.

Author(s) : LEE S., JEONG Y., LEE J., et al.

Summary

Plate heat exchangers (PHEs) have been widely used in refrigeration and air conditioning systems as evaporators or condensers in chillers, respectively. Recently, according to use the water source heat pumps (WSHP), the same PHE is used as evaporators and condensers. In WSHP, flow direction of refrigerant can be changed by 4-way valve while water can't be. In this study, the effects of flow direction called as parallel and counter flow on heat transfer rate, pressure drop and exergy loss were investigated experimentally. The experiments were carried out for a brazed plate heat exchangers under parallel and counter flow conditions in evaporation and condensation. The experimental parameters in this study include the refrigerant 410A mass flux from 3 to 14 kg/m2s. Heat transfer rate, pressure drop and exergy analysis were obtained according to the experimental results.

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Pages: pp. 240-245

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Details

  • Original title: An experimental study on evaporation-condensation heat transfer in brazed plate heat exchanger using refrigerant 410A with flow direction.
  • Record ID : 2009-2283
  • Languages: English
  • Source: ACRA-2009. The proceedings of the 4th Asian conference on refrigeration and air conditioning: May 20-22, 2009, Taipei, R.O.C.
  • Publication date: 2009/05/20

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