Thermodynamic Properties of Fluids


For 15 years, MegaWatSoft has been at the forefront of engineering and scientific software for calculations involving computational thermodynamics.


Our software has a goal of providing powerful and cost-effective software based tools for the scientist, engineer and student for calculating the thermodynamic and transport properties of fluids.

Below is a summary of the currently available software for different platforms.



Available Software Overview

Software for Windows Desktop

Applications and libraries (Excel Add-in and ActiveX DLL) for Windows Desktop

Software is available for the following fluids:

  • Water and steam
  • Humid (moist) air
  • Carbon dioxide
  • R134a
  • R123
  • Ammonia
  • Methane
  • Nitrogen
  • Oxygen

Desktop applications and libraries are provided for calculation of thermodynamic and transport properties of water and steam, and humid (moist) air. For the following fluids only software libraries are available: carbon dioxide, R134a, R123, ammonia, methane, nitrogen and oxygen.

Steam97 Application logP-H Diagram




Steam Tables on iPad, Laptop and iPod

Web Applications

Thermodynamic and Transport Properties of Fluids Online

Professional quality Internet based applications for calculation of thermodynamic and transport properties of the following fluids:

  • Water and steam
  • Carbon dioxide
  • Ammonia
  • Humid (moist) air

The applications use the same calculation libraries as their corresponding desktop versions.