Thermophysical Properties: Ethane
From Thermal-FluidsPedia
Ethane, C2H6, Molecular Mass: 30.1, (Tsat= -88.6 °C; Tm = -183.3 °C) T Temp. ˚C pv saturation pressure (105 Pa) hlv latent heat (kJ/kg) ρℓ liquid density (kg/m³) ρv vapor density (kg/m³) μℓ liquid viscosity (10-7 N-s/m²) μv vapor viscosity (10-7 N-s/m²) kℓ liquid thermal conductivity (W/m-K) kv vapor thermal conductivity a (W/m-K) σ liquid surface tension (10-3N/m) cp,ℓ liquid specific heat (kJ/kg-K) cp,v vapor specific heat (kJ/kg-K) -120 0.096 530 582 0.230 2580 49.0 0.149 21.23 2.82 1.297 -100 0.600 506 562 0.921 1800 55.0 0.137 17.93 2.94 1.349 -80 1.700 480 540 2.600 1360 61.0 0.125 14.60 3.05 1.401 -60 3.700 450 516 6.200 1100 67.0 0.113 0.0116 11.30 3.16 1.459 -40 7.200 414 488 12.700 900 73.0 0.100 0.0138 8.00 3.26 1.521 -20 14.000 368 454 25.500 760 79.0 0.088 0.0160 4.60 3.38 1.585 0 25.000 304 414 46.000 660 85.5 0.077 0.0185 1.20 3.48 1.660 20 38.000 200 360 85.000 600 91.0 0.066 0.0209 0.08 1.736
Propertya Temp. α0 α1 α2 α3 α4 α5 Error(%) pv (105Pa) -120–20 °C 3.2181 2.5604-2b -2.0481-4 -1.6186-6 1.1732-8 1.9164-10 0.42 hlv (kJ/kg) -120–20 °C 5.7153 -1.3766-2 -2.6378-4 -3.8474-6 -2.9487-8 -8.7228-11 0.16 ρℓ (kg/m³) -120–20 °C 6.0252 -5.5940-3 -5.4609-5 -5.7691-7 -4.0348-9 -1.1902-11 0.06 ρv (kg/m³) -120–20 °C 3.8345 2.9745-2 -1.0357-5 1.6498-6 1.8172-8 1.0060-10 0.66 μℓ (10-7Ns/m²) -120–20 °C 6.4915 -6.1186-3 5.8535-5 5.1235-7 2.7979-9 -3.7143-12 0.20 μv (10-7 Ns/m²) -120–20 °C 4.4479 3.6435-3 -1.6045-5 -3.3600-7 -3.8411-9 -1.3189-11 0.06 kℓ (W/m-K) -120–20 °C -2.5644 -7.0141-3 -2.1420-5 -45965-7 -6.1947-9 -2.4827-11 0.08 kv (W/m-K) -60–20 °C -3.9900 7.0307-3 -2.4476-5 -8.7918-7 -1.1320-8 0.01 σ (10-3 N/m) -120–20 °C 1.9473-1 -9.3444-2 -1.7344-3 -1.8129-5 -9.1194-8 -1.6900-10 1.04 cp,ℓ (kJ/kg-K) -120–0 °C 1.2471 1.0319-3 -3.4135-5 -7.0981-7 -6.2492-9 -1.9064-11 0.05 cp,v (kJ/kg-K) -120–20 °C 5.0629-1 2.2657-3 9.9616-7 -3.3084-8 -3.3255-10 -8.7290-13 0.05
Polynomial Function: ln(Property) = α0 + α1T + α2T2 + α3T3 + α4T4 + α5T5
References
Faghri, A., and Zhang, Y., 2006, Transport Phenomena in Multiphase Systems, Elsevier, Burlington, MA.
Faghri, Amir , Zhang Yuwen , Howell John, 2010, Advanced Heat and Mass Transfer, Global Digital Press, Columbia, MO
Vargaftik, N.B., 1975, Handbook of Physical Properties of Liquids and Gases, Hemisphere, New York, NY.