Enhancement Effect of a Microfin Tube in Condensation of R407C

نویسندگان

  • S. Koyama
  • S. M. Lee
  • Shigeru KOYAMA
چکیده

In the present paper the heat exchange performance of a counter flow double-tube condenser for a ternary refrigerant mixture R407C, composed ofHFC32/HFC125/HFC134a, is calculated using a prediction method developed by the present authors. The axial distributions of vapor and liquid bulk mass fraction, temperature, heat flux, mass flux, etc., are obtained for both a smooth tube and a microfin tube. The calculation results for both tubes are compared to examine the condensation enhancement effect of the microfin tube.

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تاریخ انتشار 2014