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Oklahoma State University

Psychrometric Software

Psychrometric Calculator (SI Units)

The Psychrometric Calculator is used to compute the thermodynamic properties of moist air. These properties are used by mechanical engineers to design Heating Ventilating & Air Conditioning (HVAC) systems and processes. The program is based on the procedure outlined in the 1997 ASHRAE Fundamentals Handbook.

For systems running Windows 95/98/ME/NT/2000/XP, it is available with and without the JAVA Virtual Machine, if you have the JVM installed download psychro.exe(2,191KB). If you don’t have the JVM installed, download psychro.exe(8,126KB).

Systems running UNIX/Linux platforms, download psychro.jar(1,957KB) and type java -jar psychro.jar to run the application. Questions about the program should be addressed to Muhammad Haider Khan.