Nitrogen N2 Prandtl Number Temperature Pressure

Reference data and engineering information about nitrogen n2 prandtl number temperature pressure for heat transfer applications.

nitrogenPrandtlnumbertemperature

Overview

Engineering reference data for Nitrogen N2 Prandtl Number Temperature Pressure in heat transfer.

Key Formulas

Fourier's Law

$q = -k \nabla T$

Heat flux proportional to temperature gradient.

Convective Heat Transfer

$Q = hA(T_s - T_\infty)$

Heat transfer between surface and fluid.

Stefan-Boltzmann Law

$q = \varepsilon \sigma T^4$

Radiative heat flux from a surface.

Thermal Resistance

$R_{th} = \frac{L}{kA}$

Resistance to heat conduction.

Variables

Symbol	Description	Unit
$q$	Heat flux	W/m²
$k$	Thermal conductivity	W/(m·K)
$h$	Convection coefficient	W/(m²·K)
$T$	Temperature	K
$\varepsilon$	Emissivity	—
$\sigma$	Stefan-Boltzmann constant	5.67×10⁻⁸ W/(m²·K⁴)

Nitrogen Prandtl Number Data

Prandtl Number at Atmospheric Pressure

The following table provides Prandtl numbers for nitrogen at atmospheric pressure across a range of temperatures in Kelvin, Celsius, and Fahrenheit.

27 rows

Prandtl number of nitrogen at atmospheric pressure
Temperature(K)	Temperature(°C)	Prandtl Number(-)	Temperature(°F)	Prandtl Number(-)
78	-195	0.847	-320	0.849
98	-175	0.799	-300	0.818
123	-150	0.769	-250	0.775
148	-125	0.755	-200	0.757
173	-100	0.746	-150	0.746
198	-75	0.738	-100	0.737
223	-50	0.731	-50	0.73
231	-42	0.729	-44	0.729
248	-25	0.726	-20	0.726
263	-10	0.723	0	0.724
268	-5	0.722	20	0.723
278	5	0.721	40	0.721
283	10	0.72	50	0.72
293	20	0.719	70	0.719
298	25	0.718	80	0.718
303	30	0.718	90	0.717
323	50	0.714	100	0.716
348	75	0.712	150	0.714
373	100	0.71	200	0.71
398	125	0.707	250	0.708
423	150	0.706	300	0.706
448	175	0.705	400	0.705
473	200	0.705	500	0.706
573	300	0.708	700	0.712
623	350	0.711	800	0.717
673	400	0.714	900	0.721
773	500	0.723	1000	0.726

Source: engineeringtoolbox.com

Prandtl Number vs Temperature and Pressure

The table below presents Prandtl numbers for nitrogen at saturation (equilibrium) conditions and at pressures of 1, 10, 50, and 100 bara.

Interactive Charts

Nitrogen Prandtl no equilibrium C

References

Original Source

Source: engineeringtoolbox.com