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Intermittent operation of vapor compression air-conditioning system using low GWP refrigerant.

Number: 1054

Author(s) : YAMAKAWA H., OGIWARA T., VARELA R. J., YOICHI M., JEONG J., SAITOH K.

Summary

In this study, a system simulator is developed to evaluate the static and dynamic properties of various refrigerants, including non-zeotropic refrigerant mixtures, for selecting next-generation refrigerants. All elements, including the heat exchanger, are modeled based on the finite volume method. This makes it a highly versatile model that also supports the reverse flow of fluid. Thus, a wide range of dynamic analyses, including compressor start/stop, is possible. In addition, the mathematical model considers transient and local compositional changes of the non-zeotropic refrigerant mixture and can reproduce their responses. The model developed in this study was used to simulate system performance for a typical non-zeotropic mixed refrigerant, including R454C (which is a mixture of R32 and R1234yf), when the cycle is operated intermittently.

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Pages: 8

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Details

  • Original title: Intermittent operation of vapor compression air-conditioning system using low GWP refrigerant.
  • Record ID : 30028817
  • 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.2021.1054
  • Document available for consultation in the library of the IIR headquarters only.

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