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

Mollier Diagram for Water-Steam

Enthalpy-entropy diagram for water and steam

Sponsored Links

The diagram below can be used to determine enthalpy versus entropy of water and steam.

Water - Mollier diagram

The Mollier diagram is useful when analyzing the performance of adiabatic steady-flow processes, such as flow in nozzles, diffusers, turbines and compressors. 

See also Water - Enthalpy (H) and Entropy (S) for figures and tabulated values at varying temperatures

Dryness Fraction

The quantity of saturated vapor in unit mass of wet vapor, denoted by x, is referred to as the

dryness fraction, or quality,

of the vapor. 

Convert to other Units

  • 1 bar = 105 Pa (N/m2) = 0.1 N/mm2 = 10,197 kp/m2 = 10.20 m H2O = 0.9869 atm = 14.50 psi (lbf/in2) = 106 dyn/cm2 = 750 mmHg
  • 1 kJ/kg = 0.4299 Btu/ lbm = 0.23884 kcal/kg

Example - Enthalpy

The enthalpy in saturated steam (x = 1, the bold red line in the diagram) with pressure 10 bar can be estimated to aprox.

2770 kJ/kg

The value can be verified by using the steam table.

Sponsored Links

Related Topics

Related Documents

Tag Search

  • en: mollier water diagram entropy enthalpy
Sponsored Links

Search 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 the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse!

Translate this page to
About the Engineering ToolBox!
.

close

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!

Scientific Online Calculator

Scientific Calculator

1 19

Sponsored Links