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.
N1 - Funding Information:
We thank members of Annex 18 Project of the IEA for their supply of experimental measurements prior to publication. We are also indebted to NEDO (New Energy and Industrial Technology Development Organization of Japan) for their financial support.
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 - HFC-125
KW - HFC-134a
KW - HFC-143a
KW - Helmholtz free energy
KW - Hydrofluorocarbon
KW - Mixture
UR - http://www.scopus.com/inward/record.url?scp=0033600386&partnerID=8YFLogxK
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 - Conference article
AN - SCOPUS:0033600386
VL - 161
SP - 225
EP - 239
JO - Fluid Phase Equilibria
JF - Fluid Phase Equilibria
SN - 0378-3812
IS - 2
T2 - Proceedings of the 1998 5th Asian Thermophysical Properties Conference
Y2 - 3 August 1998 through 2 September 1998
ER -