Nitrogen - Prandtl number vs. Temperature and Pressure (original) (raw)

Figures and tables showing Prandtl number of nitrogen at varying temperarure and pressure, SI and Imperial units.

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/(lbm oF)]
k = thermal conductivity [W/(m K)], [Btu/(h ft2oF/ft)]

Below, Prandtl numbers of nitrogen at varying temperatures and saturation pressure, as well as 1, 10 and 100 bara (14.5, 145 and 1450 psia) are given in figures and tables .

Nitrogen phase diagram

See also other properties of Nitrogen at varying temperature and pressure : Density and specific weight , Dynamic and kinematic viscosity , Specific heat (Heat capacity) , Thermal conductivity and thermal diffusivity , and thermophysical properties at standard conditions ,
as well as Prandtl number of Air , Ammonia , Carbon dioxide , Methane , Propane and Water .

Prandtl number of nitrogen at gas-liquid equilibrium pressure, varying temperature given as °C or °F:

Prandtl number of nitrogen at 1, 10 and 100 bara (14.5, 145 and 1450 psia), varying temperature given as °C or °F:

Prandtl number of nitrogen at atmospheric pressure, temperature given as K, °C or °F:

Nitrogen - Prandtl number vs. Temperature at Atmospheric Pressure

Prandtl number of nitrogen at given temperatures and pressures:

Nitrogen - Prandtl number vs. Temperature and Pressure

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