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 |
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Keywords
- Equation of state
- Helmholtz free energy
- HFC-125
- HFC-134a
- HFC-143a
- Hydrofluorocarbon
- Mixture
ASJC Scopus subject areas
- Fluid Flow and Transfer Processes
- Physical and Theoretical Chemistry
Cite this
Equation of state for hydrofluorocarbon refrigerant mixtures of HFC-125/143a, HFC-125/134a, HFC-134a/143a and HFC-125/134a/143a. / Li, J.; Tillner-Roth, R.; Sato, H.; Watanabe, K.
In: Fluid Phase Equilibria, Vol. 161, No. 2, 24.07.1999, p. 225-239.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Equation of state for hydrofluorocarbon refrigerant mixtures of HFC-125/143a, HFC-125/134a, HFC-134a/143a and HFC-125/134a/143a
AU - Li, J.
AU - Tillner-Roth, R.
AU - Sato, H.
AU - Watanabe, K.
PY - 1999/7/24
Y1 - 1999/7/24
N2 - 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.
AB - 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.
KW - Equation of state
KW - Helmholtz free energy
KW - HFC-125
KW - HFC-134a
KW - HFC-143a
KW - Hydrofluorocarbon
KW - Mixture
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UR - http://www.scopus.com/inward/citedby.url?scp=0033600386&partnerID=8YFLogxK
U2 - 10.1016/S0378-3812(99)00187-9
DO - 10.1016/S0378-3812(99)00187-9
M3 - Article
VL - 161
SP - 225
EP - 239
JO - Fluid Phase Equilibria
JF - Fluid Phase Equilibria
SN - 0378-3812
IS - 2
ER -