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Numerical study of thermodynamic performance and heat transfer characteristics of mixture refrigerants with low GWP as alternatives to replace R410A.

Number: 0247

Author(s) : ZENG M-Q., ZHANG X. R.

Summary

In this paper, M1(R32/R290, 67/33) and M2(R32/R1270, 63/37) were proposed to replace R410A refrigerant. The thermodynamic parameters of R410A, M1 and M2 were compared, the effects of mass flux, vapor quality and physical properties on heat transfer performance were discussed. The results showed that the thermodynamic performances of M1 and M2 are similar to R410A, which GWP were 76.3% and 77.8% lower than that of R410A, respectively. At the same condition, the heat transfer coefficients and pressure gradients increase with increasing mass flux and vapor quality, the heat transfer coefficients of M1 and M2 were on average 13% and 17% higher than that of R410A, respectively. However, the pressure gradients of the three are not much different. M1 and M2 can be used as low GWP alternative refrigerants of R410A. The obtained results of the present study are of great significance to the industrial application of alternative refrigerants.

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Pages: 8 p.

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Details

  • Original title: Numerical study of thermodynamic performance and heat transfer characteristics of mixture refrigerants with low GWP as alternatives to replace R410A.
  • Record ID : 30029806
  • Languages: English
  • Subject: HFCs alternatives
  • Source: 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15th 2022.
  • Publication date: 2022/06/13
  • DOI: http://dx.doi.org/10.18462/iir.gl2022.0247
  • Document available for consultation in the library of the IIR headquarters only.

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