Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Ammonia - Prandtl Number vs. Temperature and Pressure

Figures and table with changes in Prandtl number for ammonia with changes in temperature and pressure.

Sponsored Links

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 ft2 o F/ft))

Below, Prandtl numbers for ammonia at varying temperatures and pressures are given in figures and table .

See also other properties of Ammonia at varying temperature and pressure: Density and specific weight , Dynamic and kinematic viscosity , Prandtl Number , Properties at Gas-Liquid Equilibrium pressure , Specific Heat (Heat Capacity) and Thermal Conductivity , and Thermophysical properties at standard conditions and Vapour pressure at gas-liquid equilibrium ,
as well as Prandtl number of Air , Carbon dioxide , Methane , Nitrogen , Propane and Water .

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

Ammonia Prandtl no equilibrium C

Ammonia Prandtl no equilibrium F

Ammonia Prandtl number at atmospheric pressure, temperature given as °C:

Ammonia Prandtl no temperature 1bara C

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

Ammonia Prandtl no pressure C

Ammonia Prandtl no pressure F
Ammonia Prandtl number at given temperatures and 1, 10, 50 and 100 bara presure:

Ammonia - Prandtl Number vs. Temperature and Pressure
Temperature Prandtl number at given pressures
[K] [°C] [°F] 1 bara 10 bara 50 bara 100 bara
200 -73.2 -8.6 2.67 2.67 2.69 2.72
239.56 -33.6 13.3 1.71(liq)
239.56 -33.6 13.3 0.881(g)
298.05 24.9 45.8 1.30 (liq)
298.05 24.9 45.8 1.18 (g)
300 26.9 46.9 0.876 1.16 1.29 1.29
362.03 88.9 81.4 1.41 (liq)
362.03 88.9 81.4 1.84 (g)
398.32 125 102 3.59 (liq)
398.32 125 102 4.85 (g)
400 127 102 0.857 0.894 1.11 3.24
500 227 158 0.835 0.846 0.903 0.998
600 327 214 0.855 0.860 0.883 0.913
700 427 269 0.952 0.955 0.965 0.976


Ammonia phase diagram

Sponsored Links

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

    Properties of gases, fluids and solids. Densities, specific heats, viscosities and more.
  • Thermodynamics

    Work, heat and energy systems.

Related Documents

Sponsored Links

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

Citation

This page can be cited as

  • The Engineering ToolBox (2018). Ammonia - Prandtl Number vs. Temperature and Pressure. [online] Available at: https://www.engineeringtoolbox.com/ammonia-prandtl-number-viscosity-heat-capacity-thermal-conductivity-d_2023.html [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































3.15.9

Sponsored Links
.