Thermophysical Properties: Ethanol
From Thermal-FluidsPedia
Ethanol, C2H5OH, Molecular Mass: 46.0, (Tsat = 78.3 °C; Tm = -114.5 °C) T Temp. ˚C pv saturation pressure (105 Pa) latent heat (kJ/kg) ρℓ liquid density (103 kg/m³) ρv vapor density (kg/m³) μℓ liquid viscosity (10-3 N-s/m²) μv vapor viscosity (10-5 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 b (kJ/kg-K) cp,v vapor specific heat c (kJ/kg-K) 0 0.012 1048.4 0.901 0.036 1.7990 0.774 0.183 0.0117 24.4 2.27 1.34 20 0.058 1030.0 0.800 0.085 1.1980 0.835 0.179 0.0139 22.8 2.40 1.40 40 0.180 1011.9 0.789 0.316 0.8190 0.900 0.175 0.0160 21.0 2.57 1.48 60 0.472 988.9 0.770 0.748 0.5880 0.959 0.171 0.0179 19.2 2.78 1.54 80 1.086 960.0 0.757 1.430 0.4320 1.030 0.169 0.0199 17.3 3.03 1.61 100 2.260 927.0 0.730 3.410 0.3180 1.092 0.167 0.0219 15.5 3.30 1.68 120 4.290 885.5 0.710 6.010 0.2430 1.157 0.165 0.0238 13.4 3.61 1.75 140 7.530 834.0 0.680 10.670 0.1900 1.219 0.163 0.0256 11.2 3.96 160 12.756 772.9 0.650 17.450 0.1500 1.293 0.161 0.0272 9.0 180 19.600 698.8 0.610 27.650 0.1200 1.369 0.159 0.0288 6.7 200 29.400 598.3 0.564 44.480 0.0950 1.464 0.157 0.0395 4.3 220 42.800 468.5 0.510 74.350 0.0725 1.618 0.155 0.0321 2.2 240 60.200 280.5 0.415 135.500 0.0488 1.948 0.153 0.1
Propertya Temp. α0 α1 α2 α3 α4 α5 Error(%) pv (105Pa) 0 – 240 °C -4.4114 8.7650-2b -6.3182-4 3.9958-6 -1.4340-8 2.0359-11 1.24 
c (kJ/kg) 0 – 240 °C 1048.6 -1.0921 1.0651-2 -2.0693-4 1.1231-6 -2.4928-9 0.12 ρℓ (103kg/m³) 0 – 240 °C -1.0791-1 -7.7201-3 1.5906-4 -1.6139-6 7.1873-9 -1.2075-11 0.50 ρv (kg/m³) 0 – 240 °C -3.3681 5.2492-2 5.1630-5 -1.9542-6 8.6893-9 -1.1451-11 4.95 μℓ (10-3Ns/m²) 0 – 240 °C 5.8942-1 -2.2540-2 1.0283-4 -8.8574-7 4.7884-9 -9.7493-12 0.39 μv (10-5 Ns/m²) 0 – 240 °C -2.5759-1 4.5249-3 -3.1212-5 3.9144-7 -2.3733-9 5.1450-12 0.29 kℓ (W/m-K) 0 – 240 °C -1.6976 -1.2505-3 7.5291-7 5.2361-8 -3.4986-10 6.4599-13 0.10 kv (W/m-K) 0 – 220 °C -4.4346 3.3797-3 2.1001-4 -3.4778-6 2.0462-8 -4.0325-11 3.75 σc (10-3 N/m) 0 – 240 °C 24.419 -8.1477-2 -1.1450-4 8.6540-7 -7.6432-9 1.9148-11 2.15 cp,ℓ (kJ/kg-K) 0 – 140 °C 0.81763 2.6793-3 1.3888-5 -4.3856-11 -4.4424-10 1.5104-12 0.01 cp,v (kJ/kg-K) 0 – 120 °C 2.9255-1 1.2271-3 8.0938-5 -1.8513-6 1.6850-8 -5.3880-11 0.11
a Polynomial Function: ln(Property) = α0 + α1T + α2T2 + α3T3 + α4T4 + α5T5
b The notation 8.7650-2 signifies 8.7650×10-2
c Polynomial Function: Property = α0 + α1T + α2T2 + α3T3 + α4T4 + α5T5
References
Dunn, P. and Reay, D.A. 1982, Heat Pipes, Pergamon Press, New York.
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
Ivanovskii, M.N., Sorokin, V.P., and Yagodkin, I.V., 1982, The Physical Principles of Heat Pipes, Clarendon Press, Oxford, UK.
Rohsenow, W.N., Hartnett, J.P., and Ganic, E.N. eds., 1985, Handbook of Heat Transfer Fundamentals, McGraw-Hill, New York, NY.
Vargaftik, N.B., 1975, Handbook of Physical Properties of Liquids and Gases, Hemisphere, New York, NY.