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Theoretical study of low GWP refrigerants in high temperature heat pump systems.

Number: 0021

Author(s) : ZHANG F., MENG Z., DONG S., LIU S., DING C., HUO Z., WANG M.

Summary

In this paper, the thermal performance of three low GWP refrigerants R1224yd(Z), R1223zd(E) and R1336mzz(Z) were studied to replace R245fa in the high-temperature heat pump system. The results showed that the heating capacity of R1224yd(Z), R1223zd(E), and R1336mzz(Z) was 6%, 12%, and 88% less than that of R245fa, respectively. The COP of R1224yd(Z) and R1223zd(E) was 2% and 1% higher than that of R245fa, respectively. However, the COP of R1336mzz(Z) was 5% less than that of R245fa. The difference in compressor discharge temperature between R1224yd(Z), R1223zd (E), R1336mzz(Z) and R245fa was about ±5 ℃. R1224yd(Z) is the best refrigerant to replace R245fa. R1223zd(E) is the second. R1336mzz(Z) is not suitable for direct replacement. The compressor needs to be increased to meet the replacement characteristics.

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Pages: 7 p.

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Details

  • Original title: Theoretical study of low GWP refrigerants in high temperature heat pump systems.
  • Record ID : 30031030
  • Languages: English
  • Subject: Technology
  • Source: 3rd IIR conference on HFO Refrigerants and low GWP Blends. Shanghai, China.
  • Publication date: 2023/04/05
  • DOI: http://dx.doi.org/10.18462/iir.HFO2023.0021

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