Carbon dioxide - Prandtl Number vs. Temperature and Pressure (original) (raw)

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:

CO2 Prandtl no equilibrium pressure C

CO2 Prandtl no equilibrium pressure F

Carbon dioxide Prandtl number at atmospheric pressure, temperature given as °C and °F:

CO2 Prandtl no 1bara C
CO2 Prandtl no 1bara F

Carbon dioxide Prandtl number at varying temperatures at given constant pressures, SI and Imperial units:

CO2 Prandtl no pressure C

CO2 Prandtl no pressure F

Carbon dioxide Prandtl number at given temperatures and 1, 10, 50 and 100 bara presure:

Carbon dioxide - Prandtl Number vs. Temperature and Pressure

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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