Carbon dioxide - Prandtl Number vs. Temperature and Pressure
Figures and table with changes in Prandtl number for carbon dioxide with changes in temperature and pressure.
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The Prandtl Number - Pr - is a dimensionless number approximating the ratio of momentum diffusivity (kinematic viscosity) to thermal diffusivity - and is often used in heat transfer and free and forced convection calculations.
The Prandtl number can for calculations be expressed as
Pr = μ Cp / k (1)
where
μ = absolute or dynamic viscosity (kg/m s, lbm/(ft h))
Cp = specific heat (J/kg K, Btu/(lbmoF))
k = thermal conductivity (W/m K, Btu/(h ft2oF/ft))
Below, Prandtl numbers for carbon dioxide at varying temperatures and pressures are given in figures and table.
See also other properties of Carbon Dioxide at varying temperature and pressure: Density and specific weight, Dynamic and kinematic viscosity, Specific heat (Heat capacity) and Thermal conductivity, and Thermophysical properties at standard conditions,,
as well as Prandtl number of Air, Ammonia, Methane, Nitrogen, Propane and Water.
Carbon dioxide Prandtl number at gas-liquid equilibrium pressure, temperature given as °C or °F:
Carbon dioxide Prandtl number at atmospheric pressure, temperature given as °C and °F:
Carbon dioxide Prandtl number at varying temperatures at given constant pressures, SI and Imperial units:
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Carbon dioxide Prandtl number at given temperatures and 1, 10, 50 and 100 bara presure:
| Temperature | Prandtl number at given pressures | |||||
| [K] | [°C] | [°F] | 1 bara | 10 bara | 50 bara | 100 bara |
| 220 | -53.2 | 2.5 | 0.792 | 2.70 | ||
| 233.03 | -40.1 | 9.7 | 0.977 | |||
| 240 | -33.2 | 13.6 | 0.785 | 0.942 | 2.32 | |
| 250 | -23.2 | 19.1 | 0.781 | 0.902 | 2.23 | 2.16 |
| 260 | -13.2 | 24.7 | 0.777 | 0.873 | 2.10 | |
| 280 | 6.9 | 35.8 | 0.770 | 0.833 | 2.06 | |
| 287.43 | 14.3 | 39.9 | 2.74 (liq) | |||
| 287.43 | 14.3 | 39.9 | 1.92 (g) | |||
| 300 | 26.9 | 46.9 | 0.763 | 0.807 | 2.39 | |
| 320 | 46.9 | 58.0 | 0.756 | 0.788 | 4.08 | |
| 340 | 66.9 | 69.1 | 0.750 | 0.774 | 1.53 | |
| 360 | 86.9 | 80.3 | 0.745 | 0.764 | 1.17 | |
| 400 | 127 | 102 | 0.738 | 0.749 | 0.938 | |
| 450 | 177 | 130 | 0.732 | 0.739 | 0.776 | 0.840 |
| 500 | 227 | 158 | 0.728 | 0.732 | 0.792 | |
| 600 | 327 | 214 | 0.725 | 0.727 | 0.754 | |
| 650 | 377 | 241 | 0.725 | 0.726 | 0.734 | 0.745 |
| 850 | 577 | 352 | 0.723 | 0.724 | 0.726 | 0.730 |
| 1050 | 777 | 464 | 0.721 | 0.721 | 0.723 | 0.724 |
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