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Experiments on condensation heat transfer of ternary mixture R1123/R32/R1234yf in a multiport tube.

Number: 1033

Author(s) : JIGE D., MIKAJIRI N., NOBUNAGA M., INOUE N.

Summary

This study investigated the condensation heat transfer coefficient and frictional pressure drop of a zeotropic ternary refrigerant mixture, R1123/R32/R1234yf, in a horizontal multiport tube. The measured heat transfer coefficient and frictional pressure drop were compared with those of the pure components, i.e., R32 and R1234yf, and the R1123/R32 mixture under the same experimental conditions. The heat transfer coefficient decreased with decreasing mass velocity and vapor quality. The heat transfer coefficient of R1123/R32/R1234yf was lower than those of the pure R32 and R1234yf and the R1123/R32 mixture. The difference in the heat transfer coefficients was remarkable at lower mass velocities. Under the same mass velocity and vapor quality conditions, the frictional pressure drop of R1123/R32/R1234yf was 0.9, 0.7, and 0.5 times lower than those of the R1123/R32 mixture, R32, and R1234yf, respectively.

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Pages: 8

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Details

  • Original title: Experiments on condensation heat transfer of ternary mixture R1123/R32/R1234yf in a multiport tube.
  • Record ID : 30028799
  • Languages: English
  • Subject: Technology
  • Source: 2nd IIR Conference on HFO Refrigerants and Low GWP Blends
  • Publication date: 2021/06
  • DOI: http://dx.doi.org/10.18462/iir.HFO.2021.1033
  • Document available for consultation in the library of the IIR headquarters only.

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