Table 5:
Binary interaction parameters used in REFPROP 10.0 for blends with VLE or density data. Check value pchk (calculated with REFPROP 10.0), is the bubble-point pressure at 298 K and a mole fraction given by x1 = 0.4.
| names (1/2) | ref.† | est.‡ | β T,12 | γ T,12 | β v,12 | γ v,12 | Fij * | pchk / MPa |
|---|---|---|---|---|---|---|---|---|
| CO2/R-1234yf | UNP | 1.017 | 1 | 1 | 1.015 | −0.657 (KW0) | 2.44362 | |
| CO2/R-1234ze(E) | UNP | 1 | 1.023 | 1 | 1 | −0.084 (KW0) | 2.15977 | |
| R-13I1/R-1234ze(E) | LM | 1 | 0.949822 | 1 | 1.00009 | 0 | 0.59256 | |
| ethane/R-1234ze(E) | LM | 1 | 0.912325 | 1 | 1.01825 | 0 | 2.58705 | |
| ethylene/R-1243zf | LM | 1 | 0.940888 | 1 | 1.02732 | 0 | 3.30544 | |
| propane/R-1234yf | LM | 1 | 0.962174 | 1 | 1.00274 | 0 | 0.894306 | |
| propane/R-1234ze(E) | LM | 1 | 0.943774 | 1 | 1.00195 | 0 | 0.841683 | |
| propane/R-1234ze(Z) | LM | 1 | 0.95395 | 1 | 1.00415 | 0 | 0.622348 | |
| propane/R-1243zf | LM | 1 | 0.965644 | 1 | 1.00189 | 0 | 0.827158 | |
| isobutane/R-1233zd(E) | R1234yf/Isobutane | 1.0073 | 0.93536 | 1 | 1 | 0 | 0.306485 | |
| isobutane/R-1234ze(Z) | LM | 1 | 0.951434 | 1 | 1.00008 | 0 | 0.311839 | |
| R-1234yf/butane | R1234yf/Isobutane | 0.992753 | 0.93536 | 1 | 1 | 0 | 0.542571 | |
| R-1234yf/isobutane | 117 | 0.992753 | 0.93536 | 1 | 1 | 0 | 0.614172 | |
| R-1234yf/R-1234ze(E) | UNP | 1 | 0.987 | 1 | 1 | 0 | 0.600222 | |
| R-1234yf/R-134a | UNP | 1 | 0.985 | 1 | 1 | 0 | 0.707141 | |
| R-1234yf/R-152a | 117 | 0.9963 | 0.98112 | 1 | 1 | 0 | 0.671841 | |
| R-1234yf/R-227ea | 117 | 0.99938 | 0.99916 | 1 | 1 | 0 | 0.543462 | |
| R-1234ze(E)/isobutane | R1234yf/Isobutane | 0.992753 | 0.93536 | 1 | 1 | 0 | 0.522495 | |
| R-1234ze(E)/pentane | UNP | 1.00705 | 0.937 | 1 | 1 | 0 | 0.34522 | |
| R-1243zf/isobutane | R1234yf/Isobutane | 0.992753 | 0.93536 | 1 | 1 | 0 | 0.569169 | |
| R-1243zf/R-1234ze(E) | R1234yf/R1234ze(E) | 1 | 0.987 | 1 | 1 | 0 | 0.560467 | |
| R-23/R-1234yf | LM | 1 | 1.01 | 1 | 1.02879 | 0 | 1.84732 | |
| R-32/R-1234yf | 59 | 1.00052 | 0.948538 | 0.993346 | 1.02211 | −0.277708 (KW4) | 1.21041 | |
| R-32/R-1234ze(E) | 59 | 1.00343 | 0.977857 | 1.00586 | 0.982707 | −0.265419 (KW2) | 1.02885 | |
| R-32/R-1234ze(Z) | R32/R1234ze(E) | 1.00343 | 0.977857 | 1.00586 | 0.982707 | −0.265419 (KW2) | 0.846399 | |
| R-125/R-1234yf | UNP | 1 | 0.999 | 1 | 1 | 0 | 0.945332 | |
| R-125/R-1234ze(E) | UNP | 1.003 | 1.0071 | 1 | 1 | 0 | 0.812898 | |
| R-134a/R-1234ze(E) | UNP | 1 | 0.992 | 1 | 1 | 0 | 0.579216 | |
| R-134a/R-1243zf | R1234yf/R134a | 1 | 0.985 | 1 | 1 | 0 | 0.651219 | |
| R-143a/R-1234yf | 117 | 0.99976 | 0.99523 | 1 | 1 | 0 | 0.916598 | |
| R-143a/R-1234ze(E) | R143a/R1234yf | 0.99976 | 0.99523 | 1 | 1 | 0 | 0.809876 | |
| R-152a/R-1234ze(E) | R1234yf/R152a | 1.00371 | 0.98112 | 1 | 1 | 0 | 0.572041 | |
| R-218/R-1234yf | LM | 1 | 0.983655 | 1 | 1.0041 | 0 | 0.792016 | |
| R-1123/R-1234yf | R1234yf/R1234ze(E) | 1 | 0.987 | 1 | 1 | 0 | 1.26398 | |
| R-1123/R-32 | R32/R1234yf | 0.99948 | 0.948538 | 1.0067 | 1.02211 | −0.277708 (KW4) | 2.14622 |
†
UNP: unpublished model
‡
LM: estimation scheme of Lemmon and McLinden;118 pair of names: alternative pair used to estimate interaction parameters
*:
The departure function (KWx, x being a placeholder) is named according to the models used in REFPROP. If the value of Fij is zero, no departure function is used.