### Abstract

Thermodynamic properties of the R-32/125 binary system are modeled by a new cubic equation of state which was developed and applied to the pure R-32 and R-125 in a previous paper by the present authors. The essential thermodynamic properties such as PVTx properties, vapor-liquid equilibrium, enthalpy, entropy, isobaric specific heat, and speed of sound are well represented by the new model simultaneously for the liquid phase, the gas phase, and the two-phase region of the R-32/125 binary system. The developed model is valid for the entire range of compositions, and a pressure-enthalpy diagram for a R-32/125 mixture with 50 mass% of R-32 is illustrated as an example. The new model was also compared with other reported models in refrigeration cycle calculations.

Original language | English |
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Pages (from-to) | 441-451 |

Number of pages | 11 |

Journal | International Journal of Refrigeration |

Volume | 20 |

Issue number | 6 |

DOIs | |

Publication status | Published - 1997 Jan 1 |

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### Keywords

- Alternative refrigerant
- Cubic equation
- Mixture model
- R-32/125
- Thermodynamic properties

### ASJC Scopus subject areas

- Building and Construction
- Mechanical Engineering

### Cite this

*International Journal of Refrigeration*,

*20*(6), 441-451. https://doi.org/10.1016/S0140-7007(97)00029-7