Abstract
Equations of state (EOSs) in the form of dimensionless Helmholtz free energy have been developed for the binary hydrofluorocarbon (HFC) refrigerant mixtures HFC-125/143a, HFC-125/134a, HFC-134a/143a and for the ternary refrigerant mixture HFC-125/134a/143a in the present work. These EOSs are effective in the temperature and pressure ranges where the experimental measurements covered, i.e., 200 K ≤ T ≤ 413 K, P ≤ 35 MPa for HFC-125/143a and HFC-125/134a; 243 K ≤ T ≤ 413 K, P ≤ 17 MPa for HFC-134a/143a and HFC-125/134a/143a. Experimental measurements in both single-phase and two-phase regions are represented by the present EOSs within their estimated uncertainties.
| Original language | English |
|---|---|
| Pages (from-to) | 225-239 |
| Number of pages | 15 |
| Journal | Fluid Phase Equilibria |
| Volume | 161 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1999 Jul 24 |
| Event | Proceedings of the 1998 5th Asian Thermophysical Properties Conference - Seoul, S Kor Duration: 1998 Aug 3 → 1998 Sep 2 |
Keywords
- Equation of state
- HFC-125
- HFC-134a
- HFC-143a
- Helmholtz free energy
- Hydrofluorocarbon
- Mixture
ASJC Scopus subject areas
- Chemical Engineering(all)
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
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Li, J., Tillner-Roth, R., Sato, H., & Watanabe, K. (1999). Equation of state for hydrofluorocarbon refrigerant mixtures of HFC-125/143a, HFC-125/134a, HFC-134a/143a and HFC-125/134a/143a. Fluid Phase Equilibria, 161(2), 225-239. https://doi.org/10.1016/S0378-3812(99)00187-9