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

Water-Steam Mollier Diagram

Enthalpy-entropy diagram for water and steam.

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

Water - Mollier diagram

Download and print Mollier Diagram for Water - Steam

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 .

Related Topics

  • Steam and Condensate

    Design of steam & condensate systems with properties, capacities, sizing of pipe lines, system configuration and more.
  • Thermodynamics

    Calculate heat, work, temperature and energy. The thermodynamics of steam and condensate systems. Water and Ice properties.
  • Thermodynamics

    Work, heat and energy systems.

Related Documents

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

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

Citation

This page can be cited as

  • The Engineering ToolBox (2008). Water-Steam Mollier Diagram. [online] Available at: https://www.engineeringtoolbox.com/mollier-diagram-water-d_308.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

















































6.3.17

.