### 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 |
---|---|

Pages (from-to) | 441-451 |

Number of pages | 11 |

Journal | International Journal of Refrigeration |

Volume | 20 |

Issue number | 6 |

Publication status | Published - 1997 |

### Fingerprint

### Keywords

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

### ASJC Scopus subject areas

- Food Science
- Mechanical Engineering

### Cite this

*International Journal of Refrigeration*,

*20*(6), 441-451.

**Thermodynamic property representation for the R-32/125 binary system by a new cubic equation of state.** / Zhang, H. L.; Sato, H.; Watanabe, K.

Research output: Contribution to journal › Article

*International Journal of Refrigeration*, vol. 20, no. 6, pp. 441-451.

}

TY - JOUR

T1 - Thermodynamic property representation for the R-32/125 binary system by a new cubic equation of state

AU - Zhang, H. L.

AU - Sato, H.

AU - Watanabe, K.

PY - 1997

Y1 - 1997

N2 - 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.

AB - 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.

KW - Alternative refrigerant

KW - Cubic equation

KW - Mixture model

KW - R-32/125

KW - Thermodynamic properties

UR - http://www.scopus.com/inward/record.url?scp=0031222302&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031222302&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0031222302

VL - 20

SP - 441

EP - 451

JO - International Journal of Refrigeration

JF - International Journal of Refrigeration

SN - 0140-7007

IS - 6

ER -