Thermophysical Properties: Water
From Thermal-FluidsPedia
Water, H2O, Molecular Mass: 18.0, (Tsat = 100 °C; Tm = 0.0 °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 (10-3/m) cp,ℓ liquid specific heat a (kJ/kg-K) cp,v vapor specific heat a (kJ/kg-K) 20 0.023368 2453.8 999.0 0.01729 10015 88.5 0.602 0.0188 72.88 4.182 1.874 40 0.073749 2406.5 993.05 0.05110 6513 96.6 0.630 0.0201 69.48 4.179 1.894 60 0.199190 2358.4 983.28 0.13020 4630 105.0 0.653 0.0216 66.07 4.185 1.924 80 0.473590 2308.9 971.82 0.29320 3510 113.0 0.669 0.0231 62.69 4.197 1.969 100 1.013250 2251.2 958.77 0.59740 2790 121.0 0.680 0.0248 58.91 4.216 2.034 120 1.985400 2202.9 943.39 1.12100 2300 128.0 0.685 0.0267 54.96 4.245 2.124 140 3.613600 2144.9 925.93 1.96560 1950 135.0 0.687 0.0288 50.79 4.285 2.245 160 6.180400 2082.2 907.44 3.25890 1690 142.0 0.684 0.0313 46.51 4.339 2.406 180 10.02700 2014.0 887.31 5.15970 1493 149.0 0.676 0.0341 42.19 4.408 2.615 200 15.55100 1939.0 865.05 7.86530 1338 156.0 0.664 0.0375 37.77 4.497 2.883
Propertya Temp. α0 α1 α2 α3 α4 α5 Error(%) pv (105Pa) 20– 200 ˚C -5.0945 7.2280-2 -2.8625-4 b 9.2341-7 -2.0295-9 2.1645-12 0.01 hlv (kJ/kg) 20– 200 ˚C 7.8201 -5.8906-4 -9.1355-6 8.4738-8 -3.9635-10 5.9150-13 0.05 ρℓ (kg/m³) 20– 200 ˚C 6.9094 -2.0146-5 -5.9868-6 2.5921-8 -9.3244-11 1.2103-13 0.02 ρv (kg/m³) 20– 200 ˚C -5.3225 6.8366-2 -2.7243-4 8.4522-7 -1.6558-9 1.5514-12 0.01 μℓ (10-7Ns/m²) 20– 200 ˚C 9.7620 -3.1154-2 2.0029-4 -9.5815-7 2.7772-9 -3.5075-12 0.02 μv (10-7 Ns/m²) 20– 200 ˚C 4.3995 3.8789-3 2.1181-5 -3.4406-7 1.6730-9 -2.8030-12 0.04 kℓ (W/m-K) 20– 200 ˚C -5.6528-1 3.1743-3 -1.4392-5 -1.3224-8 2.5534-10 -6.4454-13 0.04 kv (W/m-K) 20– 200 ˚C -4.0406 3.2288-3 5.3383-6 -6.7139-8 4.0967-10 -6.9579-13 0.07 σ (10-3N/m) 20– 200 ˚C 4.3438 -3.0664-3 2.0743-5 -2.5499-7 1.0377-9 -1.7156-12 0.03 cp,ℓ (kJ/kg-K) 20– 200 ˚C 1.4338 -2.2638-4 4.2819-6 -2.7411-8 1.4699-10 -2.2589-13 0.01 cp,v (kJ/kg-K) 20– 200 ˚C 6.2084-1 3.1420-4 1.6110-6 4.0156-8 3.4841-11 -2.0709-13 0.01
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.