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Condensation heat transfer of R22, R410A and R32 inside a multiport mini-channel tube.

Number: pap. 2299

Author(s) : PHAM Q. V., CHOI K. I., OH J. T., et al.

Summary

In the present study, the heat transfer coefficients are investigated experimentally for the flow condensation of R22, R410A, and R32 inside a horizontal multiport rectangular mini-channel tube. The multiport tube has nine channels with the hydraulic diameter of 0.969 mm. The experimental measurements were carried out at the fixed saturation temperature of 48oC, by the varying refrigerant mass flux from 50 to 500kg/m2s, and the heat flux range from 3 to 15kW/m2. The effects of vapor quality, mass flux and heat flux on condensation characteristics is are clarified. The experiment results were compared with the existing heat transfer coefficient correlations developed for condensation in multiport mini-channel. A new correlation was proposed using the present data with good prediction.

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Pages: 10

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Details

  • Original title: Condensation heat transfer of R22, R410A and R32 inside a multiport mini-channel tube.
  • Record ID : 30024486
  • Languages: English
  • Source: 2018 Purdue Conferences. 17th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2018/07/09

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