Methane  Prandtl number vs. Temperature
Figures and table showing changes in Prandtl number for methane with changes in temperature and pressure.
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 C_{p} / k (1)
where
μ = absolute or dynamic viscosity (kg/m s, lb_{m}/(ft h))
C_{p} = specific heat (J/kg K, Btu/(lb_{m}^{o}F))
k = thermal conductivity (W/m K, Btu/(h ft^{2}^{o}F/ft))
Below, Prandtl numbers for methane at varying temperatures and pressures are given in figures and table.
See also other properties of Methane 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, Carbon dioxide, Nitrogen, Propane and Water.
Methane Prandtl number at atmospheric pressure, temperature given as °C or °F:
Methane Prandtl number at varying temperatures and constant pressures, SI and Imperial units:
Back to top
Methane Prandtl number at given temperatures and 1, 10 and 100 bara presure:
Temperature 
Prandtl number at given pressures 

[K]  [°C]  [°F]  1 bara, 14.5 psia 
10 bara, 
100 bara, 1450 psia 
160  113  172  0.7721  0.8659  1.629 
180  93.2  136  0.7583  0.8170  1.640 
200  73.2  99.7  0.7487  0.7892  1.867 
220  53.2  63.7  0.7420  0.7726  2.055 
240  33.2  27.7  0.7369  0.7607  1.453 
260  13.2  8.3  0.7328  0.7515  1.148 
280  6.9  44.3  0.7299  0.7452  1.007 
300  26.9  80.3  0.7279  0.7402  0.9304 
320  46.9  116  0.7261  0.7370  0.8824 
340  66.9  152  0.7243  0.7341  0.8501 
360  86.9  188  0.7234  0.7312  0.8269 
400  127  260  0.7216  0.7276  0.7968 
500  227  440  0.7182  0.7233  0.7560 
600  327  620  0.7155  0.7179  0.7385 
700  427  800  0.7127  
800  527  980  0.7099  
900  627  1160  0.7082  
1000  727  1340  0.7060 
Related Topics

Fluid Mechanics
The study of fluids  liquids and gases. Involving velocity, pressure, density and temperature as functions of space and time. 
Material Properties
Material properties of gases, fluids and solids  densities, specific heats, viscosities and more. 
Thermodynamics
Work, heat and energy systems.
Related Documents

Air  Prandtl Number
Prandtl number for air vs. temperature and pressure. 
Ammonia  Prandtl Number vs. Temperature and Pressure
Figures and table with changes in Prandtl number for ammonia with changes in temperature and pressure. 
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. 
Conductive Heat Transfer
Conductive heat transfer takes place in a solid if there is a temperature gradient. 
Heat, Work and Energy
Heat vs. work vs. energy. 
Methane  Dynamic and Kinematic Viscosity vs. Temperature and Pressure
Online calculator, figures and tables showing dynamic and kinematic viscosity of methane, CH_{4}, at varying temperature and pressure  Imperial and SI Units. 
Methane  Density and Specific Weight vs. Temperature and Pressure
Online calculator, figures and tables showing density and specific weight of methane, CH_{4}, at temperatures ranging from 160 to 725 °C (260 to 1300 °F) at atmospheric and higher pressure  Imperial and SI Units. 
Methane  Liquid vs. Gaseous Units
Convert between liquid and gaseous LNG and Methane units. 
Methane  Thermal Conductivity vs. Temperature and Pressure
Online calculator, figures and table showing thermal conductivity of methane, CH_{4}, at temperatures ranging from 160 to 725 °C (260 to 1300 °F) at atmospheric and higher pressure  Imperial and SI Units. 
Methane  Thermophysical Properties
Chemical, Physical and Thermal Properties of Methane  CH_{4}. Phase diagram included. 
Methane Gas  Specific Heat vs. Temperature
Specific heat of Methane Gas  CH4  at temperatures ranging 200  1100 K. 
Nitrogen  Prandtl number vs. Temperature and Pressure
Figures and tables showing Prandtl number of nitrogen at varying temperarure and pressure, SI and Imperial units. 
Prandtl Number
A dimensionless number approximating the ratio of momentum diffusivity to thermal diffusivity. 
Propane  Prandtl Number vs. Temperature and Pressure
Figures and tables with Prandtl Number of liquid and gaseous propane at varying temperarure and pressure, SI and Imperial units. 
Propane  Thermal Diffusivity vs. Temperature and Pressure
Figures and tables showing thermal diffusivity of liquid and gaseous propane at varying temperarure and pressure, SI and Imperial units. 
Solubility of Gases in Water vs. Temperature
Solubility of Ammonia, Argon, Carbon Dioxide, Carbon Monoxide, Chlorine, Ethane, Ethylene, Helium, Hydrogen, Hydrogen Sulfide, Methane, Nitrogen, Oxygen and Sulfur Dioxide in water. 
Viscosity  Absolute (Dynamic) vs. Kinematic
Vicosity is a fluid's resistance to flow and can be valued as dynamic (absolute) or kinematic.