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Outdoor condensing units Handling the low-GWP refrigerants including R448A and R449A

Number: 1053

Author(s) : UCHIDA S., TSUNEKI Y., HORI M., HASEGAWA K., SUZUKI H.

Summary

In the refrigeration and air-conditioning fields, the demand has been increasing in recent years for condensing units using lower GWP refrigerants as a means of contributing to the prevention of global warming. Toshiba Carrier Corporation has developed 6.0 kW outdoor condensing units capable of handling low-GWP and nonflammable refrigerants R448A (GWP = 1 387) and R449A (GWP = 1 397). We developed the compressor which improved reliability, in order to use R448A and R449A. It is noticeable that the developed unit demonstrated successful enhancement of COP values at every cooling capacity. Also, it became usable with evaporation temperature more wide-ranging than the conventional unit.

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Details

  • Original title: Outdoor condensing units Handling the low-GWP refrigerants including R448A and R449A
  • Record ID : 30028816
  • 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.2021.1053
  • Document available for consultation in the library of the IIR headquarters only.

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