Table 7.
Measured bubble point pressures for the system R-1234yf (1) + R1234ze(E) (2) at temperature T, pressure P, and liquid mole fraction xa.
x1 = 0.3241 ± 0.0001 | ||||
| ||||
T/K | p/kPa | u(p)/kPa | (u(p)/p)*100 | (1− p exp/ pEoS)*100 |
| ||||
270.00 | 229.5 | 0.83 | 0.36 | −2.73 |
270.00 | 229.5 | 0.83 | 0.36 | −2.70 |
280.00 | 325.4 | 0.88 | 0.27 | −2.48 |
280.00 | 325.5 | 0.88 | 0.27 | −2.45 |
290.00 | 449.1 | 0.95 | 0.21 | −2.34 |
290.00 | 449.2 | 0.95 | 0.21 | −2.31 |
300.00 | 605.7 | 1.04 | 0.17 | −2.18 |
300.00 | 605.4 | 1.04 | 0.17 | −2.23 |
310.00 | 799.6 | 1.35 | 0.17 | −2.11 |
310.00 | 799.1 | 1.35 | 0.17 | −2.17 |
320.00 | 1038.6 | 1.82 | 0.18 | −1.89 |
320.00 | 1037.1 | 1.82 | 0.18 | −2.03 |
330.00 | 1325.4 | 1.95 | 0.15 | −1.83 |
330.00 | 1324.7 | 1.95 | 0.15 | −1.89 |
340.00 | 1669.5 | 2.12 | 0.13 | −1.72 |
340.00 | 1667.8 | 2.12 | 0.13 | −1.81 |
340.00 | 1668.5 | 2.12 | 0.13 | −1.77 |
350.00 | 2077.0 | 2.32 | 0.11 | −1.62 |
350.00 | 2076.2 | 2.32 | 0.11 | −1.66 |
360.00 | 2556.7 | 2.57 | 0.10 | −1.55 |
360.00 | 2557.1 | 2.57 | 0.10 | −1.54 |
| ||||
x1 = 0.6382 ± 0.0003 | ||||
| ||||
T/K | P/kPa | u(P)/kPa | (u(P)/P)*100 | (Pexp/PEoS − 1)*100 |
| ||||
270.00 | 258.9 | 1.49 | 0.58 | −1.73 |
270.00 | 258.0 | 1.49 | 0.58 | −2.04 |
280.00 | 363.5 | 1.52 | 0.42 | −1.78 |
280.00 | 362.9 | 1.52 | 0.42 | −1.92 |
280.00 | 362.8 | 1.52 | 0.42 | −1.94 |
290.00 | 497.8 | 1.56 | 0.31 | −1.75 |
290.00 | 497.1 | 1.56 | 0.31 | −1.89 |
290.00 | 497.0 | 1.56 | 0.31 | −1.90 |
300.00 | 666.3 | 1.63 | 0.24 | −1.76 |
300.00 | 665.7 | 1.63 | 0.24 | −1.86 |
300.00 | 665.6 | 1.63 | 0.24 | −1.87 |
310.00 | 874.6 | 1.85 | 0.21 | −1.77 |
310.00 | 873.8 | 1.85 | 0.21 | −1.86 |
310.00 | 873.7 | 1.85 | 0.21 | −1.87 |
320.00 | 1128.8 | 2.22 | 0.20 | −1.71 |
320.00 | 1127.8 | 2.22 | 0.20 | −1.80 |
320.00 | 1127.7 | 2.22 | 0.20 | −1.81 |
330.00 | 1435.4 | 2.34 | 0.16 | −1.61 |
330.00 | 1434.0 | 2.34 | 0.16 | −1.70 |
330.00 | 1434.0 | 2.34 | 0.16 | −1.70 |
340.00 | 1800.0 | 2.50 | 0.14 | −1.58 |
340.00 | 1798.8 | 2.50 | 0.14 | −1.64 |
340.00 | 1799.1 | 2.50 | 0.14 | −1.63 |
350.00 | 2229.1 | 2.69 | 0.12 | −1.64 |
350.00 | 2231.3 | 2.69 | 0.12 | −1.54 |
360.00 | 2734.0 | 2.94 | 0.11 | −1.71 |
360.00 | 2738.9 | 2.94 | 0.11 | −1.54 |
Standard uncertainties u are u(T) = 0.02 K, values of u(p) and u(x1) are given in the table.